From 989c78dd56307c85f710533130a2a464f6f3c5ae Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 28 Oct 2013 23:49:26 +0100 Subject: usb: gadget: r8a66597-udc: convert to clk_prepare/unprepare Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and clk_disable_unprepare() to get ready for the migration to the common clock framework. Cc: Felipe Balbi Cc: linux-usb@vger.kernel.org Signed-off-by: Laurent Pinchart Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index 68be48d..4728751 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1833,7 +1833,7 @@ static int __exit r8a66597_remove(struct platform_device *pdev) r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req); if (r8a66597->pdata->on_chip) { - clk_disable(r8a66597->clk); + clk_disable_unprepare(r8a66597->clk); clk_put(r8a66597->clk); } @@ -1931,7 +1931,7 @@ static int __init r8a66597_probe(struct platform_device *pdev) ret = PTR_ERR(r8a66597->clk); goto clean_up; } - clk_enable(r8a66597->clk); + clk_prepare_enable(r8a66597->clk); } if (r8a66597->pdata->sudmac) { @@ -1996,7 +1996,7 @@ clean_up3: free_irq(irq, r8a66597); clean_up2: if (r8a66597->pdata->on_chip) { - clk_disable(r8a66597->clk); + clk_disable_unprepare(r8a66597->clk); clk_put(r8a66597->clk); } clean_up: -- cgit v0.10.2 From 943c13971c08ddeb06f4cb9dea1addb76f6b4423 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 29 Oct 2013 12:17:16 -0500 Subject: usb: musb: dsps: implement ->set_mode() this will let us support broken designs such as AM335x EVM SK where ID pin isn't routed anywhere on a host port. With this we can toggle internal IDDIG signal and make sure MUSB goes into host mode as necessary. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 1901f6f..ce7ec01 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -106,6 +106,7 @@ struct dsps_musb_wrapper { /* bit positions for mode */ unsigned iddig:5; + unsigned iddig_mux:5; /* miscellaneous stuff */ u8 poll_seconds; }; @@ -406,6 +407,54 @@ static int dsps_musb_exit(struct musb *musb) return 0; } +static int dsps_musb_set_mode(struct musb *musb, u8 mode) +{ + struct device *dev = musb->controller; + struct dsps_glue *glue = dev_get_drvdata(dev->parent); + const struct dsps_musb_wrapper *wrp = glue->wrp; + void __iomem *ctrl_base = musb->ctrl_base; + void __iomem *base = musb->mregs; + u32 reg; + + reg = dsps_readl(base, wrp->mode); + + switch (mode) { + case MUSB_HOST: + reg &= ~(1 << wrp->iddig); + + /* + * if we're setting mode to host-only or device-only, we're + * going to ignore whatever the PHY sends us and just force + * ID pin status by SW + */ + reg |= (1 << wrp->iddig_mux); + + dsps_writel(base, wrp->mode, reg); + dsps_writel(ctrl_base, wrp->phy_utmi, 0x02); + break; + case MUSB_PERIPHERAL: + reg |= (1 << wrp->iddig); + + /* + * if we're setting mode to host-only or device-only, we're + * going to ignore whatever the PHY sends us and just force + * ID pin status by SW + */ + reg |= (1 << wrp->iddig_mux); + + dsps_writel(base, wrp->mode, reg); + break; + case MUSB_OTG: + dsps_writel(base, wrp->phy_utmi, 0x02); + break; + default: + dev_err(glue->dev, "unsupported mode %d\n", mode); + return -EINVAL; + } + + return 0; +} + static struct musb_platform_ops dsps_ops = { .init = dsps_musb_init, .exit = dsps_musb_exit, @@ -414,6 +463,7 @@ static struct musb_platform_ops dsps_ops = { .disable = dsps_musb_disable, .try_idle = dsps_musb_try_idle, + .set_mode = dsps_musb_set_mode, }; static u64 musb_dmamask = DMA_BIT_MASK(32); @@ -608,6 +658,7 @@ static const struct dsps_musb_wrapper am33xx_driver_data = { .reset = 0, .otg_disable = 21, .iddig = 8, + .iddig_mux = 7, .usb_shift = 0, .usb_mask = 0x1ff, .usb_bitmap = (0x1ff << 0), -- cgit v0.10.2 From 2df6761e5eca9a810050a15062ae8abce1bbae41 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 29 Oct 2013 12:17:17 -0500 Subject: usb: musb: core: call musb_platform_set_mode() during probe This will tell glue layer which mode we want port to be in. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 0a43329..377ef9b 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1941,17 +1941,26 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) switch (musb->port_mode) { case MUSB_PORT_MODE_HOST: status = musb_host_setup(musb, plat->power); + if (status < 0) + goto fail3; + status = musb_platform_set_mode(musb, MUSB_HOST); break; case MUSB_PORT_MODE_GADGET: status = musb_gadget_setup(musb); + if (status < 0) + goto fail3; + status = musb_platform_set_mode(musb, MUSB_PERIPHERAL); break; case MUSB_PORT_MODE_DUAL_ROLE: status = musb_host_setup(musb, plat->power); if (status < 0) goto fail3; status = musb_gadget_setup(musb); - if (status) + if (status) { musb_host_cleanup(musb); + goto fail3; + } + status = musb_platform_set_mode(musb, MUSB_OTG); break; default: dev_err(dev, "unsupported port mode %d\n", musb->port_mode); -- cgit v0.10.2 From e0a6104e066595bcf791381a23b568ab0a890707 Mon Sep 17 00:00:00 2001 From: George Cherian Date: Wed, 25 Sep 2013 11:59:43 +0530 Subject: usb: dwc3: dwc3-omap: return PROBE_DEFER if extcon is missing and found in dt Due to inter dependencies of I2C and extcon by the time dwc3 checks for extcon device its not registered especially in case of J6. In O5 the vbus regulator save us from getting to this point. So for tiime being return PROBE_DEFER if extcon is enabled in dt. Signed-off-by: George Cherian diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 7f7ea62..daab0ad 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -535,7 +535,7 @@ static int dwc3_omap_probe(struct platform_device *pdev) edev = of_extcon_get_extcon_dev(dev, 0); if (IS_ERR(edev)) { dev_vdbg(dev, "couldn't get extcon device\n"); - ret = PTR_ERR(edev); + ret = -EPROBE_DEFER; goto err2; } -- cgit v0.10.2 From c338412b5dedf405d3f8ba3af1a61fa623319e1d Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 25 Nov 2013 22:26:40 +0100 Subject: usb: musb: unconditionally save and restore the context on suspend It appears not all platforms featuring a musb core need to save the musb core registers at suspend time and restore them on resume. The dsps platform does, however, and because it shouldn't cause any trouble on other platforms, do it unconditionally for all of them. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 377ef9b..ac96e4c 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -2224,16 +2224,28 @@ static int musb_suspend(struct device *dev) */ } + musb_save_context(musb); + spin_unlock_irqrestore(&musb->lock, flags); return 0; } static int musb_resume_noirq(struct device *dev) { - /* for static cmos like DaVinci, register values were preserved + struct musb *musb = dev_to_musb(dev); + + /* + * For static cmos like DaVinci, register values were preserved * unless for some reason the whole soc powered down or the USB * module got reset through the PSC (vs just being disabled). + * + * For the DSPS glue layer though, a full register restore has to + * be done. As it shouldn't harm other platforms, we do it + * unconditionally. */ + + musb_restore_context(musb); + return 0; } -- cgit v0.10.2 From 94f72136a86141604bcab75a2548b6488e70128d Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 25 Nov 2013 22:26:41 +0100 Subject: usb: musb: call musb_port_suspend from musb_bus_suspend Make musb_port_suspend() externally available, and call it when to host goes into suspend. This allows the core to go into suspend while a device is connected. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 6582a20..81caf9f 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2433,6 +2433,8 @@ static int musb_bus_suspend(struct usb_hcd *hcd) struct musb *musb = hcd_to_musb(hcd); u8 devctl; + musb_port_suspend(musb, true); + if (!is_host_active(musb)) return 0; diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 960d735..e660af9 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -92,6 +92,7 @@ extern void musb_host_rx(struct musb *, u8); extern void musb_root_disconnect(struct musb *musb); extern void musb_host_resume_root_hub(struct musb *musb); extern void musb_host_poke_root_hub(struct musb *musb); +extern void musb_port_suspend(struct musb *musb, bool do_suspend); #else static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) { @@ -121,6 +122,7 @@ static inline void musb_root_disconnect(struct musb *musb) {} static inline void musb_host_resume_root_hub(struct musb *musb) {} static inline void musb_host_poll_rh_status(struct musb *musb) {} static inline void musb_host_poke_root_hub(struct musb *musb) {} +static inline void musb_port_suspend(struct musb *musb, bool do_suspend) {} #endif struct usb_hcd; diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 9af6bba..e977441 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -44,7 +44,7 @@ #include "musb_core.h" -static void musb_port_suspend(struct musb *musb, bool do_suspend) +void musb_port_suspend(struct musb *musb, bool do_suspend) { struct usb_otg *otg = musb->xceiv->otg; u8 power; -- cgit v0.10.2 From b991f9b77c029135f6e0d1d5d16869ebf755c4c0 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Mon, 25 Nov 2013 22:26:42 +0100 Subject: usb: musb: dsps: add {tx,rx}_mode to wrapper rx_mode and tx_mode need to be read at suspend time and restored on resume for dsps platforms. So add it to the wrapper struct first, and initialize the values. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index ce7ec01..3f37244 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -83,6 +83,8 @@ struct dsps_musb_wrapper { u16 coreintr_status; u16 phy_utmi; u16 mode; + u16 tx_mode; + u16 rx_mode; /* bit positions for control */ unsigned reset:5; @@ -655,6 +657,8 @@ static const struct dsps_musb_wrapper am33xx_driver_data = { .coreintr_status = 0x34, .phy_utmi = 0xe0, .mode = 0xe8, + .tx_mode = 0x70, + .rx_mode = 0x74, .reset = 0, .otg_disable = 21, .iddig = 8, -- cgit v0.10.2 From 869c597829817af4b9f85c5e4181c622918dc781 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Tue, 26 Nov 2013 13:31:14 +0100 Subject: usb: musb: dsps: add support for suspend and resume The dsps platform needs to save save some registers at suspend time and restore them after resume. This patch adds a struct for these registers, and also lets the musb core know that the core registers need to be saved as well. We also have to explicitly de-assert the port reset upon resume on this platform, but musb_port_reset() should not be called from glue layers. Hence, introduce a flag in struct musb_hdrc_config for this. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 3f37244..7cfa6e8 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -113,6 +113,19 @@ struct dsps_musb_wrapper { u8 poll_seconds; }; +/* + * register shadow for suspend + */ +struct dsps_context { + u32 control; + u32 epintr; + u32 coreintr; + u32 phy_utmi; + u32 mode; + u32 tx_mode; + u32 rx_mode; +}; + /** * DSPS glue structure. */ @@ -122,6 +135,8 @@ struct dsps_glue { const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */ struct timer_list timer; /* otg_workaround timer */ unsigned long last_timer; /* last timer data for each instance */ + + struct dsps_context context; }; static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) @@ -559,6 +574,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, config->num_eps = get_int_prop(dn, "mentor,num-eps"); config->ram_bits = get_int_prop(dn, "mentor,ram-bits"); + config->host_port_deassert_reset_at_resume = 1; pdata.mode = get_musb_port_mode(dev); /* DT keeps this entry in mA, musb expects it as per USB spec */ pdata.power = get_int_prop(dn, "mentor,power") / 2; @@ -683,11 +699,52 @@ static const struct of_device_id musb_dsps_of_match[] = { }; MODULE_DEVICE_TABLE(of, musb_dsps_of_match); +#ifdef CONFIG_PM +static int dsps_suspend(struct device *dev) +{ + struct dsps_glue *glue = dev_get_drvdata(dev); + const struct dsps_musb_wrapper *wrp = glue->wrp; + struct musb *musb = platform_get_drvdata(glue->musb); + void __iomem *mbase = musb->ctrl_base; + + glue->context.control = dsps_readl(mbase, wrp->control); + glue->context.epintr = dsps_readl(mbase, wrp->epintr_set); + glue->context.coreintr = dsps_readl(mbase, wrp->coreintr_set); + glue->context.phy_utmi = dsps_readl(mbase, wrp->phy_utmi); + glue->context.mode = dsps_readl(mbase, wrp->mode); + glue->context.tx_mode = dsps_readl(mbase, wrp->tx_mode); + glue->context.rx_mode = dsps_readl(mbase, wrp->rx_mode); + + return 0; +} + +static int dsps_resume(struct device *dev) +{ + struct dsps_glue *glue = dev_get_drvdata(dev); + const struct dsps_musb_wrapper *wrp = glue->wrp; + struct musb *musb = platform_get_drvdata(glue->musb); + void __iomem *mbase = musb->ctrl_base; + + dsps_writel(mbase, wrp->control, glue->context.control); + dsps_writel(mbase, wrp->epintr_set, glue->context.epintr); + dsps_writel(mbase, wrp->coreintr_set, glue->context.coreintr); + dsps_writel(mbase, wrp->phy_utmi, glue->context.phy_utmi); + dsps_writel(mbase, wrp->mode, glue->context.mode); + dsps_writel(mbase, wrp->tx_mode, glue->context.tx_mode); + dsps_writel(mbase, wrp->rx_mode, glue->context.rx_mode); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(dsps_pm_ops, dsps_suspend, dsps_resume); + static struct platform_driver dsps_usbss_driver = { .probe = dsps_probe, .remove = dsps_remove, .driver = { .name = "musb-dsps", + .pm = &dsps_pm_ops, .of_match_table = musb_dsps_of_match, }, }; diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 81caf9f..8224138 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2464,7 +2464,12 @@ static int musb_bus_suspend(struct usb_hcd *hcd) static int musb_bus_resume(struct usb_hcd *hcd) { - /* resuming child port does the work */ + struct musb *musb = hcd_to_musb(hcd); + + if (musb->config && + musb->config->host_port_deassert_reset_at_resume) + musb_port_reset(musb, false); + return 0; } diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index e660af9..7436c24 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -93,6 +93,7 @@ extern void musb_root_disconnect(struct musb *musb); extern void musb_host_resume_root_hub(struct musb *musb); extern void musb_host_poke_root_hub(struct musb *musb); extern void musb_port_suspend(struct musb *musb, bool do_suspend); +extern void musb_port_reset(struct musb *musb, bool do_reset); #else static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) { @@ -123,6 +124,7 @@ static inline void musb_host_resume_root_hub(struct musb *musb) {} static inline void musb_host_poll_rh_status(struct musb *musb) {} static inline void musb_host_poke_root_hub(struct musb *musb) {} static inline void musb_port_suspend(struct musb *musb, bool do_suspend) {} +static inline void musb_port_reset(struct musb *musb) {} #endif struct usb_hcd; diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index e977441..24e46c0 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -109,7 +109,7 @@ void musb_port_suspend(struct musb *musb, bool do_suspend) } } -static void musb_port_reset(struct musb *musb, bool do_reset) +void musb_port_reset(struct musb *musb, bool do_reset) { u8 power; void __iomem *mbase = musb->mregs; diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h index eb50525..a4ee1b5 100644 --- a/include/linux/usb/musb.h +++ b/include/linux/usb/musb.h @@ -76,6 +76,9 @@ struct musb_hdrc_config { unsigned dma:1 __deprecated; /* supports DMA */ unsigned vendor_req:1 __deprecated; /* vendor registers required */ + /* need to explicitly de-assert the port reset after resume? */ + unsigned host_port_deassert_reset_at_resume:1; + u8 num_eps; /* number of endpoints _with_ ep0 */ u8 dma_channels __deprecated; /* number of dma channels */ u8 dyn_fifo_size; /* dynamic size in bytes */ -- cgit v0.10.2 From c3505f04582f3fee1452613c7d36a1811e524ab4 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 8 Nov 2013 12:39:29 -0600 Subject: usb: gadget: epautoconf: switch over to usb_endpoint_type() we have a helper to fetch endpoint type out of a descriptor, let's use it. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index a777f7b..feaaa7b 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -58,7 +58,7 @@ ep_matches ( return 0; /* only support ep0 for portable CONTROL traffic */ - type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; + type = usb_endpoint_type(desc); if (USB_ENDPOINT_XFER_CONTROL == type) return 0; -- cgit v0.10.2 From 4fbc5566c8b9b8e1c927583b89f3ff9e27ebad09 Mon Sep 17 00:00:00 2001 From: Michal Nazarewicz Date: Sun, 10 Nov 2013 20:35:55 +0100 Subject: usb: gadget: goku: remove unused argument The stop_activity function never uses driver argument (even though it modifies it) and thus it is safe to remove it. Signed-off-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index f827680..7eda9fd 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -1350,16 +1350,12 @@ static int goku_udc_start(struct usb_gadget *g, return 0; } -static void -stop_activity(struct goku_udc *dev, struct usb_gadget_driver *driver) +static void stop_activity(struct goku_udc *dev) { unsigned i; DBG (dev, "%s\n", __func__); - if (dev->gadget.speed == USB_SPEED_UNKNOWN) - driver = NULL; - /* disconnect gadget driver after quiesceing hw and the driver */ udc_reset (dev); for (i = 0; i < 4; i++) @@ -1377,7 +1373,7 @@ static int goku_udc_stop(struct usb_gadget *g, spin_lock_irqsave(&dev->lock, flags); dev->driver = NULL; - stop_activity(dev, driver); + stop_activity(dev); spin_unlock_irqrestore(&dev->lock, flags); return 0; @@ -1521,7 +1517,7 @@ rescan: if (unlikely(stat & INT_DEVWIDE)) { if (stat & INT_SYSERROR) { ERROR(dev, "system error\n"); - stop_activity(dev, dev->driver); + stop_activity(dev); stat = 0; handled = 1; // FIXME have a neater way to prevent re-enumeration @@ -1536,7 +1532,7 @@ rescan: } else { DBG(dev, "disconnect\n"); if (dev->gadget.speed == USB_SPEED_FULL) - stop_activity(dev, dev->driver); + stop_activity(dev); dev->ep0state = EP0_DISCONNECT; dev->int_enable = INT_DEVWIDE; writel(dev->int_enable, &dev->regs->int_enable); -- cgit v0.10.2 From 7de7174aa36f548a53c26d6841f3f7aeb449513b Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 12 Nov 2013 20:07:24 +0100 Subject: usb: gadget: remove superfluous name casts device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven Cc: linux-usb@vger.kernel.org Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 807127d..6315ee6 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2717,7 +2717,7 @@ MODULE_DEVICE_TABLE(of, qe_udc_match); static struct platform_driver udc_driver = { .driver = { - .name = (char *)driver_name, + .name = driver_name, .owner = THIS_MODULE, .of_match_table = qe_udc_match, }, diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 36ac7cf..b7dea4e 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2666,7 +2666,7 @@ static struct platform_driver udc_driver = { .suspend = fsl_udc_suspend, .resume = fsl_udc_resume, .driver = { - .name = (char *)driver_name, + .name = driver_name, .owner = THIS_MODULE, /* udc suspend/resume called from OTG driver */ .suspend = fsl_udc_otg_suspend, -- cgit v0.10.2 From 574f24f797718937b48befb97d13850d5bebb72c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 14 Nov 2013 11:42:11 +0300 Subject: usb: gadget: update some out of date comments These functions used to return negative errror codes but now they return ERR_PTRs. Signed-off-by: Dan Carpenter Acked-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 2aae0d6..b7d4f82 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -753,7 +753,7 @@ static struct device_type gadget_type = { * gadget driver using this framework. The link layer addresses are * set up using module parameters. * - * Returns negative errno, or zero on success + * Returns an eth_dev pointer on success, or an ERR_PTR on failure. */ struct eth_dev *gether_setup_name(struct usb_gadget *g, const char *dev_addr, const char *host_addr, diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index fb23d1f..a32b41e 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -106,7 +106,7 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, * gadget driver using this framework. The link layer addresses are * set up using module parameters. * - * Returns negative errno, or zero on success + * Returns a eth_dev pointer on success, or an ERR_PTR on failure */ static inline struct eth_dev *gether_setup(struct usb_gadget *g, const char *dev_addr, const char *host_addr, -- cgit v0.10.2 From cc9d9ccf2a1e8c9f36a436805317180003ba9719 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 26 Nov 2013 10:06:00 -0600 Subject: usb: phy: fsm: don't depend on indirect includes this header uses spinlocks and errno values, so we must include and to avoid build errors. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index 7441b46..32f86a3 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -15,6 +15,9 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include +#include + #undef VERBOSE #ifdef VERBOSE -- cgit v0.10.2 From d49dd788840ff802421ed7412e967b659fe9ca58 Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 26 Nov 2013 10:08:58 -0600 Subject: usb: phy: fsm: protect against multiple inclusions if this header is included twice, we would have redefinition build errors. Fix this. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index 32f86a3..200f4d1 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -15,6 +15,9 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ +#ifndef __LINUX_USB_OTG_FSM_H +#define __LINUX_USB_OTG_FSM_H + #include #include @@ -237,3 +240,5 @@ static inline int otg_start_gadget(struct otg_fsm *fsm, int on) } int otg_statemachine(struct otg_fsm *fsm); + +#endif /* __LINUX_USB_OTG_FSM_H */ -- cgit v0.10.2 From 16e569e9661ea2b964b8abb607a51e5285254021 Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 26 Nov 2013 11:46:05 +0900 Subject: usb: phy: replace spinlock with mutex in OTG FSM OTG Final State Machine calls functions which may sleep. For example, start_gadget callback implementation can use usb_gadget_vbus_connect(), whose context: can sleep. If so, mutex should be used instead of spinlock. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index 7f3c73b..62d5af2 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -848,7 +848,7 @@ static int fsl_otg_conf(struct platform_device *pdev) pr_info("Couldn't init OTG timers\n"); goto err; } - spin_lock_init(&fsl_otg_tc->fsm.lock); + mutex_init(&fsl_otg_tc->fsm.lock); /* Set OTG state machine operations */ fsl_otg_tc->fsm.ops = &fsl_otg_ops; @@ -1017,10 +1017,9 @@ static int show_fsl_usb2_otg_state(struct device *dev, struct otg_fsm *fsm = &fsl_otg_dev->fsm; char *next = buf; unsigned size = PAGE_SIZE; - unsigned long flags; int t; - spin_lock_irqsave(&fsm->lock, flags); + mutex_lock(&fsm->lock); /* basic driver infomation */ t = scnprintf(next, size, @@ -1088,7 +1087,7 @@ static int show_fsl_usb2_otg_state(struct device *dev, size -= t; next += t; - spin_unlock_irqrestore(&fsm->lock, flags); + mutex_unlock(&fsm->lock); return PAGE_SIZE - size; } diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index 329c2d2..2817b04 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -23,7 +23,7 @@ #include #include -#include +#include #include #include #include @@ -245,9 +245,8 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) int otg_statemachine(struct otg_fsm *fsm) { enum usb_otg_state state; - unsigned long flags; - spin_lock_irqsave(&fsm->lock, flags); + mutex_lock(&fsm->lock); state = fsm->otg->phy->state; state_changed = 0; @@ -359,7 +358,7 @@ int otg_statemachine(struct otg_fsm *fsm) default: break; } - spin_unlock_irqrestore(&fsm->lock, flags); + mutex_lock(&fsm->lock); VDBG("quit statemachine, changed = %d\n", state_changed); return state_changed; diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index 200f4d1..b6ba1bf 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -18,7 +18,7 @@ #ifndef __LINUX_USB_OTG_FSM_H #define __LINUX_USB_OTG_FSM_H -#include +#include #include #undef VERBOSE @@ -116,7 +116,7 @@ struct otg_fsm { /* Current usb protocol used: 0:undefine; 1:host; 2:client */ int protocol; - spinlock_t lock; + struct mutex lock; }; struct otg_fsm_ops { -- cgit v0.10.2 From 5653668c9585441926dd2575791f6b5bb84bb254 Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 26 Nov 2013 11:47:02 +0900 Subject: usb: phy: move OTG FSM header Other USB drivers may want to use OTG final state machine implementation, so make this header available for them. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h index 7365170..5986c96 100644 --- a/drivers/usb/phy/phy-fsl-usb.h +++ b/drivers/usb/phy/phy-fsl-usb.h @@ -15,7 +15,7 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include "phy-fsm-usb.h" +#include #include #include diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index 2817b04..6223872 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -28,8 +28,7 @@ #include #include #include - -#include "phy-fsm-usb.h" +#include /* Change USB protocol when there is a protocol change */ static int otg_set_protocol(struct otg_fsm *fsm, int protocol) diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h deleted file mode 100644 index b6ba1bf..0000000 --- a/drivers/usb/phy/phy-fsm-usb.h +++ /dev/null @@ -1,244 +0,0 @@ -/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef __LINUX_USB_OTG_FSM_H -#define __LINUX_USB_OTG_FSM_H - -#include -#include - -#undef VERBOSE - -#ifdef VERBOSE -#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \ - __func__, ## args) -#else -#define VDBG(stuff...) do {} while (0) -#endif - -#ifdef VERBOSE -#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__) -#else -#define MPC_LOC do {} while (0) -#endif - -#define PROTO_UNDEF (0) -#define PROTO_HOST (1) -#define PROTO_GADGET (2) - -enum otg_fsm_timer { - /* Standard OTG timers */ - A_WAIT_VRISE, - A_WAIT_VFALL, - A_WAIT_BCON, - A_AIDL_BDIS, - B_ASE0_BRST, - A_BIDL_ADIS, - - /* Auxiliary timers */ - B_SE0_SRP, - B_SRP_FAIL, - A_WAIT_ENUM, - - NUM_OTG_FSM_TIMERS, -}; - -/* OTG state machine according to the OTG spec */ -struct otg_fsm { - /* Input */ - int id; - int adp_change; - int power_up; - int test_device; - int a_bus_drop; - int a_bus_req; - int a_srp_det; - int a_vbus_vld; - int b_conn; - int a_bus_resume; - int a_bus_suspend; - int a_conn; - int b_bus_req; - int b_se0_srp; - int b_ssend_srp; - int b_sess_vld; - /* Auxilary inputs */ - int a_sess_vld; - int b_bus_resume; - int b_bus_suspend; - - /* Output */ - int data_pulse; - int drv_vbus; - int loc_conn; - int loc_sof; - int adp_prb; - int adp_sns; - - /* Internal variables */ - int a_set_b_hnp_en; - int b_srp_done; - int b_hnp_enable; - int a_clr_err; - - /* Informative variables */ - int a_bus_drop_inf; - int a_bus_req_inf; - int a_clr_err_inf; - int b_bus_req_inf; - /* Auxilary informative variables */ - int a_suspend_req_inf; - - /* Timeout indicator for timers */ - int a_wait_vrise_tmout; - int a_wait_vfall_tmout; - int a_wait_bcon_tmout; - int a_aidl_bdis_tmout; - int b_ase0_brst_tmout; - int a_bidl_adis_tmout; - - struct otg_fsm_ops *ops; - struct usb_otg *otg; - - /* Current usb protocol used: 0:undefine; 1:host; 2:client */ - int protocol; - struct mutex lock; -}; - -struct otg_fsm_ops { - void (*chrg_vbus)(struct otg_fsm *fsm, int on); - void (*drv_vbus)(struct otg_fsm *fsm, int on); - void (*loc_conn)(struct otg_fsm *fsm, int on); - void (*loc_sof)(struct otg_fsm *fsm, int on); - void (*start_pulse)(struct otg_fsm *fsm); - void (*start_adp_prb)(struct otg_fsm *fsm); - void (*start_adp_sns)(struct otg_fsm *fsm); - void (*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer); - void (*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer); - int (*start_host)(struct otg_fsm *fsm, int on); - int (*start_gadget)(struct otg_fsm *fsm, int on); -}; - - -static inline int otg_chrg_vbus(struct otg_fsm *fsm, int on) -{ - if (!fsm->ops->chrg_vbus) - return -EOPNOTSUPP; - fsm->ops->chrg_vbus(fsm, on); - return 0; -} - -static inline int otg_drv_vbus(struct otg_fsm *fsm, int on) -{ - if (!fsm->ops->drv_vbus) - return -EOPNOTSUPP; - if (fsm->drv_vbus != on) { - fsm->drv_vbus = on; - fsm->ops->drv_vbus(fsm, on); - } - return 0; -} - -static inline int otg_loc_conn(struct otg_fsm *fsm, int on) -{ - if (!fsm->ops->loc_conn) - return -EOPNOTSUPP; - if (fsm->loc_conn != on) { - fsm->loc_conn = on; - fsm->ops->loc_conn(fsm, on); - } - return 0; -} - -static inline int otg_loc_sof(struct otg_fsm *fsm, int on) -{ - if (!fsm->ops->loc_sof) - return -EOPNOTSUPP; - if (fsm->loc_sof != on) { - fsm->loc_sof = on; - fsm->ops->loc_sof(fsm, on); - } - return 0; -} - -static inline int otg_start_pulse(struct otg_fsm *fsm) -{ - if (!fsm->ops->start_pulse) - return -EOPNOTSUPP; - if (!fsm->data_pulse) { - fsm->data_pulse = 1; - fsm->ops->start_pulse(fsm); - } - return 0; -} - -static inline int otg_start_adp_prb(struct otg_fsm *fsm) -{ - if (!fsm->ops->start_adp_prb) - return -EOPNOTSUPP; - if (!fsm->adp_prb) { - fsm->adp_sns = 0; - fsm->adp_prb = 1; - fsm->ops->start_adp_prb(fsm); - } - return 0; -} - -static inline int otg_start_adp_sns(struct otg_fsm *fsm) -{ - if (!fsm->ops->start_adp_sns) - return -EOPNOTSUPP; - if (!fsm->adp_sns) { - fsm->adp_sns = 1; - fsm->ops->start_adp_sns(fsm); - } - return 0; -} - -static inline int otg_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer) -{ - if (!fsm->ops->add_timer) - return -EOPNOTSUPP; - fsm->ops->add_timer(fsm, timer); - return 0; -} - -static inline int otg_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer) -{ - if (!fsm->ops->del_timer) - return -EOPNOTSUPP; - fsm->ops->del_timer(fsm, timer); - return 0; -} - -static inline int otg_start_host(struct otg_fsm *fsm, int on) -{ - if (!fsm->ops->start_host) - return -EOPNOTSUPP; - return fsm->ops->start_host(fsm, on); -} - -static inline int otg_start_gadget(struct otg_fsm *fsm, int on) -{ - if (!fsm->ops->start_gadget) - return -EOPNOTSUPP; - return fsm->ops->start_gadget(fsm, on); -} - -int otg_statemachine(struct otg_fsm *fsm); - -#endif /* __LINUX_USB_OTG_FSM_H */ diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h new file mode 100644 index 0000000..b6ba1bf --- /dev/null +++ b/include/linux/usb/otg-fsm.h @@ -0,0 +1,244 @@ +/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __LINUX_USB_OTG_FSM_H +#define __LINUX_USB_OTG_FSM_H + +#include +#include + +#undef VERBOSE + +#ifdef VERBOSE +#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \ + __func__, ## args) +#else +#define VDBG(stuff...) do {} while (0) +#endif + +#ifdef VERBOSE +#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__) +#else +#define MPC_LOC do {} while (0) +#endif + +#define PROTO_UNDEF (0) +#define PROTO_HOST (1) +#define PROTO_GADGET (2) + +enum otg_fsm_timer { + /* Standard OTG timers */ + A_WAIT_VRISE, + A_WAIT_VFALL, + A_WAIT_BCON, + A_AIDL_BDIS, + B_ASE0_BRST, + A_BIDL_ADIS, + + /* Auxiliary timers */ + B_SE0_SRP, + B_SRP_FAIL, + A_WAIT_ENUM, + + NUM_OTG_FSM_TIMERS, +}; + +/* OTG state machine according to the OTG spec */ +struct otg_fsm { + /* Input */ + int id; + int adp_change; + int power_up; + int test_device; + int a_bus_drop; + int a_bus_req; + int a_srp_det; + int a_vbus_vld; + int b_conn; + int a_bus_resume; + int a_bus_suspend; + int a_conn; + int b_bus_req; + int b_se0_srp; + int b_ssend_srp; + int b_sess_vld; + /* Auxilary inputs */ + int a_sess_vld; + int b_bus_resume; + int b_bus_suspend; + + /* Output */ + int data_pulse; + int drv_vbus; + int loc_conn; + int loc_sof; + int adp_prb; + int adp_sns; + + /* Internal variables */ + int a_set_b_hnp_en; + int b_srp_done; + int b_hnp_enable; + int a_clr_err; + + /* Informative variables */ + int a_bus_drop_inf; + int a_bus_req_inf; + int a_clr_err_inf; + int b_bus_req_inf; + /* Auxilary informative variables */ + int a_suspend_req_inf; + + /* Timeout indicator for timers */ + int a_wait_vrise_tmout; + int a_wait_vfall_tmout; + int a_wait_bcon_tmout; + int a_aidl_bdis_tmout; + int b_ase0_brst_tmout; + int a_bidl_adis_tmout; + + struct otg_fsm_ops *ops; + struct usb_otg *otg; + + /* Current usb protocol used: 0:undefine; 1:host; 2:client */ + int protocol; + struct mutex lock; +}; + +struct otg_fsm_ops { + void (*chrg_vbus)(struct otg_fsm *fsm, int on); + void (*drv_vbus)(struct otg_fsm *fsm, int on); + void (*loc_conn)(struct otg_fsm *fsm, int on); + void (*loc_sof)(struct otg_fsm *fsm, int on); + void (*start_pulse)(struct otg_fsm *fsm); + void (*start_adp_prb)(struct otg_fsm *fsm); + void (*start_adp_sns)(struct otg_fsm *fsm); + void (*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer); + void (*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer); + int (*start_host)(struct otg_fsm *fsm, int on); + int (*start_gadget)(struct otg_fsm *fsm, int on); +}; + + +static inline int otg_chrg_vbus(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->chrg_vbus) + return -EOPNOTSUPP; + fsm->ops->chrg_vbus(fsm, on); + return 0; +} + +static inline int otg_drv_vbus(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->drv_vbus) + return -EOPNOTSUPP; + if (fsm->drv_vbus != on) { + fsm->drv_vbus = on; + fsm->ops->drv_vbus(fsm, on); + } + return 0; +} + +static inline int otg_loc_conn(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->loc_conn) + return -EOPNOTSUPP; + if (fsm->loc_conn != on) { + fsm->loc_conn = on; + fsm->ops->loc_conn(fsm, on); + } + return 0; +} + +static inline int otg_loc_sof(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->loc_sof) + return -EOPNOTSUPP; + if (fsm->loc_sof != on) { + fsm->loc_sof = on; + fsm->ops->loc_sof(fsm, on); + } + return 0; +} + +static inline int otg_start_pulse(struct otg_fsm *fsm) +{ + if (!fsm->ops->start_pulse) + return -EOPNOTSUPP; + if (!fsm->data_pulse) { + fsm->data_pulse = 1; + fsm->ops->start_pulse(fsm); + } + return 0; +} + +static inline int otg_start_adp_prb(struct otg_fsm *fsm) +{ + if (!fsm->ops->start_adp_prb) + return -EOPNOTSUPP; + if (!fsm->adp_prb) { + fsm->adp_sns = 0; + fsm->adp_prb = 1; + fsm->ops->start_adp_prb(fsm); + } + return 0; +} + +static inline int otg_start_adp_sns(struct otg_fsm *fsm) +{ + if (!fsm->ops->start_adp_sns) + return -EOPNOTSUPP; + if (!fsm->adp_sns) { + fsm->adp_sns = 1; + fsm->ops->start_adp_sns(fsm); + } + return 0; +} + +static inline int otg_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer) +{ + if (!fsm->ops->add_timer) + return -EOPNOTSUPP; + fsm->ops->add_timer(fsm, timer); + return 0; +} + +static inline int otg_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer) +{ + if (!fsm->ops->del_timer) + return -EOPNOTSUPP; + fsm->ops->del_timer(fsm, timer); + return 0; +} + +static inline int otg_start_host(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->start_host) + return -EOPNOTSUPP; + return fsm->ops->start_host(fsm, on); +} + +static inline int otg_start_gadget(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->start_gadget) + return -EOPNOTSUPP; + return fsm->ops->start_gadget(fsm, on); +} + +int otg_statemachine(struct otg_fsm *fsm); + +#endif /* __LINUX_USB_OTG_FSM_H */ -- cgit v0.10.2 From e1d2e31975e1e3a31ac592d5b1c5cb5d655b3f4e Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Tue, 26 Nov 2013 11:47:53 +0900 Subject: usb: phy: Add OTG FSM configuration option This patch removes dependency on Freescale USB UTG Transceiver driver and makes OTG FSM implementation selectable. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 08e2f39..921a9f4 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -6,6 +6,14 @@ menu "USB Physical Layer drivers" config USB_PHY def_bool n +config USB_OTG_FSM + bool "USB 2.0 OTG FSM implementation" + select USB_OTG + select USB_PHY + help + Implements OTG Final State Machine as specified in On-The-Go + and Embedded Host Supplement to the USB Revision 2.0 Specification. + # # USB Transceiver Drivers # @@ -20,7 +28,7 @@ config AB8500_USB config FSL_USB2_OTG bool "Freescale USB OTG Transceiver Driver" - depends on USB_EHCI_FSL && USB_FSL_USB2 && PM_RUNTIME + depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM && PM_RUNTIME select USB_OTG select USB_PHY help diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 022c1da..1bf6c08 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -3,12 +3,12 @@ # obj-$(CONFIG_USB_PHY) += phy.o obj-$(CONFIG_OF) += of.o +obj-$(CONFIG_USB_OTG_FSM) += phy-fsm-usb.o # transceiver drivers, keep the list sorted obj-$(CONFIG_AB8500_USB) += phy-ab8500-usb.o -phy-fsl-usb2-objs := phy-fsl-usb.o phy-fsm-usb.o -obj-$(CONFIG_FSL_USB2_OTG) += phy-fsl-usb2.o +obj-$(CONFIG_FSL_USB2_OTG) += phy-fsl-usb.o obj-$(CONFIG_ISP1301_OMAP) += phy-isp1301-omap.o obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o -- cgit v0.10.2 From 5ace3d00fa11bb9ec5e1cc02805ac27201f27e61 Mon Sep 17 00:00:00 2001 From: Bin Liu Date: Wed, 30 Oct 2013 09:38:23 -0500 Subject: usb: musb: dsps: polling ID pin status only in otg mode Only start the otg_timer in dual role mode; otherwise in peripheral mode when musb is disconnected from the host port, otg_timer starts and continuously toggles the session, which causes VBUS pulse. Signed-off-by: Bin Liu Acked-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 7cfa6e8..593d3c9 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -359,8 +359,9 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) if (musb->int_tx || musb->int_rx || musb->int_usb) ret |= musb_interrupt(musb); - /* Poll for ID change */ - if (musb->xceiv->state == OTG_STATE_B_IDLE) + /* Poll for ID change in OTG port mode */ + if (musb->xceiv->state == OTG_STATE_B_IDLE && + musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE) mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); out: spin_unlock_irqrestore(&musb->lock, flags); -- cgit v0.10.2 From a01091e5ce866562ea2638a80f2241d8d6bde164 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 7 Nov 2013 08:41:25 +0100 Subject: usb: gadget: composite: redirect setup requests If there are setup requests not directed to an endpont or an interface, current config's setup() has been attempted so far. This patch, in case the above fails, adds code which tries the setup() of configuration's function if there is only one function in the configuration. This behavior is required to provide equivalent of gadget zero with configfs. The gadget zero has a "config driver" for sourcesink, but all it does is delegating the request to the function proper. So when the equivalent gadget is set up with configfs it needs to handle requests directed to "config driver", but with configfs it is not possible to specify "config drivers". Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 3e7ae70..611fe89 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1451,8 +1451,22 @@ unknown: struct usb_configuration *c; c = cdev->config; - if (c && c->setup) + if (!c) + goto done; + + /* try current config's setup */ + if (c->setup) { value = c->setup(c, ctrl); + goto done; + } + + /* try the only function in the current config */ + if (!list_is_singular(&c->functions)) + goto done; + f = list_first_entry(&c->functions, struct usb_function, + list); + if (f->setup) + value = f->setup(f, ctrl); } goto done; -- cgit v0.10.2 From 1efd54eab2b60c68c2ce75ea635306cef847d751 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 7 Nov 2013 08:41:26 +0100 Subject: usb: gadget: factor out alloc_ep_req alloc_ep_req() is a function repeated in several modules. Make a common implementation and use it. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index f1af396..40bd0f8 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -7,7 +7,7 @@ ccflags-$(CONFIG_USB_GADGET_VERBOSE) += -DVERBOSE_DEBUG obj-$(CONFIG_USB_GADGET) += udc-core.o obj-$(CONFIG_USB_LIBCOMPOSITE) += libcomposite.o libcomposite-y := usbstring.o config.o epautoconf.o -libcomposite-y += composite.o functions.o configfs.o +libcomposite-y += composite.o functions.o configfs.o u_f.o obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o obj-$(CONFIG_USB_NET2272) += net2272.o obj-$(CONFIG_USB_NET2280) += net2280.o diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c index 6e69a8e..a95290a 100644 --- a/drivers/usb/gadget/f_hid.c +++ b/drivers/usb/gadget/f_hid.c @@ -20,6 +20,8 @@ #include #include +#include "u_f.h" + static int major, minors; static struct class *hidg_class; @@ -334,20 +336,10 @@ static int f_hidg_open(struct inode *inode, struct file *fd) /*-------------------------------------------------------------------------*/ /* usb_function */ -static struct usb_request *hidg_alloc_ep_req(struct usb_ep *ep, unsigned length) +static inline struct usb_request *hidg_alloc_ep_req(struct usb_ep *ep, + unsigned length) { - struct usb_request *req; - - req = usb_ep_alloc_request(ep, GFP_ATOMIC); - if (req) { - req->length = length; - req->buf = kmalloc(length, GFP_ATOMIC); - if (!req->buf) { - usb_ep_free_request(ep, req); - req = NULL; - } - } - return req; + return alloc_ep_req(ep, length, length); } static void hidg_set_report_complete(struct usb_ep *ep, struct usb_request *req) diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index 4a3873a..b790653 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -20,6 +20,7 @@ #include #include "g_zero.h" +#include "u_f.h" /* * LOOPBACK FUNCTION ... a testing vehicle for USB peripherals, @@ -293,6 +294,11 @@ static void disable_loopback(struct f_loopback *loop) VDBG(cdev, "%s disabled\n", loop->function.name); } +static inline struct usb_request *lb_alloc_ep_req(struct usb_ep *ep, int len) +{ + return alloc_ep_req(ep, len, buflen); +} + static int enable_loopback(struct usb_composite_dev *cdev, struct f_loopback *loop) { @@ -332,7 +338,7 @@ fail0: * than 'buflen' bytes each. */ for (i = 0; i < qlen && result == 0; i++) { - req = alloc_ep_req(ep, 0); + req = lb_alloc_ep_req(ep, 0); if (req) { req->complete = loopback_complete; result = usb_ep_queue(ep, req, GFP_ATOMIC); diff --git a/drivers/usb/gadget/f_midi.c b/drivers/usb/gadget/f_midi.c index 263e721..36d4bb2 100644 --- a/drivers/usb/gadget/f_midi.c +++ b/drivers/usb/gadget/f_midi.c @@ -32,6 +32,8 @@ #include #include +#include "u_f.h" + MODULE_AUTHOR("Ben Williamson"); MODULE_LICENSE("GPL v2"); @@ -191,20 +193,10 @@ static struct usb_gadget_strings *midi_strings[] = { NULL, }; -static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length) +static inline struct usb_request *midi_alloc_ep_req(struct usb_ep *ep, + unsigned length) { - struct usb_request *req; - - req = usb_ep_alloc_request(ep, GFP_ATOMIC); - if (req) { - req->length = length; - req->buf = kmalloc(length, GFP_ATOMIC); - if (!req->buf) { - usb_ep_free_request(ep, req); - req = NULL; - } - } - return req; + return alloc_ep_req(ep, length, length); } static void free_ep_req(struct usb_ep *ep, struct usb_request *req) @@ -365,7 +357,7 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) /* allocate a bunch of read buffers and queue them all at once. */ for (i = 0; i < midi->qlen && err == 0; i++) { struct usb_request *req = - alloc_ep_req(midi->out_ep, midi->buflen); + midi_alloc_ep_req(midi->out_ep, midi->buflen); if (req == NULL) return -ENOMEM; @@ -546,7 +538,7 @@ static void f_midi_transmit(struct f_midi *midi, struct usb_request *req) return; if (!req) - req = alloc_ep_req(ep, midi->buflen); + req = midi_alloc_ep_req(ep, midi->buflen); if (!req) { ERROR(midi, "gmidi_transmit: alloc_ep_request failed\n"); diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index a889585..c5ad4a1 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -21,6 +21,7 @@ #include "g_zero.h" #include "gadget_chips.h" +#include "u_f.h" /* * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral @@ -301,23 +302,9 @@ static struct usb_gadget_strings *sourcesink_strings[] = { /*-------------------------------------------------------------------------*/ -struct usb_request *alloc_ep_req(struct usb_ep *ep, int len) +static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len) { - struct usb_request *req; - - req = usb_ep_alloc_request(ep, GFP_ATOMIC); - if (req) { - if (len) - req->length = len; - else - req->length = buflen; - req->buf = kmalloc(req->length, GFP_ATOMIC); - if (!req->buf) { - usb_ep_free_request(ep, req); - req = NULL; - } - } - return req; + return alloc_ep_req(ep, len, buflen); } void free_ep_req(struct usb_ep *ep, struct usb_request *req) @@ -628,10 +615,10 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in, break; } ep = is_in ? ss->iso_in_ep : ss->iso_out_ep; - req = alloc_ep_req(ep, size); + req = ss_alloc_ep_req(ep, size); } else { ep = is_in ? ss->in_ep : ss->out_ep; - req = alloc_ep_req(ep, 0); + req = ss_alloc_ep_req(ep, 0); } if (!req) diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h index ef3e851..a1c1a97 100644 --- a/drivers/usb/gadget/g_zero.h +++ b/drivers/usb/gadget/g_zero.h @@ -36,7 +36,6 @@ void lb_modexit(void); int lb_modinit(void); /* common utilities */ -struct usb_request *alloc_ep_req(struct usb_ep *ep, int len); void free_ep_req(struct usb_ep *ep, struct usb_request *req); void disable_endpoints(struct usb_composite_dev *cdev, struct usb_ep *in, struct usb_ep *out, diff --git a/drivers/usb/gadget/u_f.c b/drivers/usb/gadget/u_f.c new file mode 100644 index 0000000..63b6642 --- /dev/null +++ b/drivers/usb/gadget/u_f.c @@ -0,0 +1,32 @@ +/* + * u_f.c -- USB function utilities for Gadget stack + * + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include "u_f.h" + +struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len) +{ + struct usb_request *req; + + req = usb_ep_alloc_request(ep, GFP_ATOMIC); + if (req) { + req->length = len ?: default_len; + req->buf = kmalloc(req->length, GFP_ATOMIC); + if (!req->buf) { + usb_ep_free_request(ep, req); + req = NULL; + } + } + return req; +} +EXPORT_SYMBOL(alloc_ep_req); diff --git a/drivers/usb/gadget/u_f.h b/drivers/usb/gadget/u_f.h new file mode 100644 index 0000000..71034c0 --- /dev/null +++ b/drivers/usb/gadget/u_f.h @@ -0,0 +1,26 @@ +/* + * u_f.h + * + * Utility definitions for USB functions + * + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __U_F_H__ +#define __U_F_H__ + +struct usb_ep; +struct usb_request; + +struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len); + +#endif /* __U_F_H__ */ + + -- cgit v0.10.2 From c0501f47c68997ea2933460b9908e6a049c59f21 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 7 Nov 2013 08:41:27 +0100 Subject: usb: gadget: f_loopback: add configfs support Add support for using the loopback USB function in gadgets composed with configfs. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/Documentation/ABI/testing/configfs-usb-gadget-loopback b/Documentation/ABI/testing/configfs-usb-gadget-loopback new file mode 100644 index 0000000..852b236 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-loopback @@ -0,0 +1,8 @@ +What: /config/usb-gadget/gadget/functions/Loopback.name +Date: Nov 2013 +KenelVersion: 3.13 +Description: + The attributes: + + qlen - depth of loopback queue + bulk_buflen - buffer length diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index a91e642..26fe876 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -689,6 +689,18 @@ config USB_CONFIGFS_MASS_STORAGE device (in much the same way as the "loop" device driver), specified as a module parameter or sysfs option. +config USB_CONFIGFS_F_LB + boolean "Loopback function (for testing)" + depends on USB_CONFIGFS + select USB_F_SS_LB + help + It loops back a configurable number of transfers. + It also implements control requests, for "chapter 9" conformance. + Make this be the first driver you try using on top of any new + USB peripheral controller driver. Then you can use host-side + test software, like the "usbtest" driver, to put your hardware + and its driver through a basic set of functional tests. + config USB_ZERO tristate "Gadget Zero (DEVELOPMENT)" select USB_LIBCOMPOSITE diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index b790653..c35bb40 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -231,6 +231,14 @@ autoconf_fail: static void lb_free_func(struct usb_function *f) { + struct f_lb_opts *opts; + + opts = container_of(f->fi, struct f_lb_opts, func_inst); + + mutex_lock(&opts->lock); + opts->refcnt--; + mutex_unlock(&opts->lock); + usb_free_all_descriptors(f); kfree(func_to_loop(f)); } @@ -386,6 +394,11 @@ static struct usb_function *loopback_alloc(struct usb_function_instance *fi) return ERR_PTR(-ENOMEM); lb_opts = container_of(fi, struct f_lb_opts, func_inst); + + mutex_lock(&lb_opts->lock); + lb_opts->refcnt++; + mutex_unlock(&lb_opts->lock); + buflen = lb_opts->bulk_buflen; qlen = lb_opts->qlen; if (!qlen) @@ -402,6 +415,118 @@ static struct usb_function *loopback_alloc(struct usb_function_instance *fi) return &loop->function; } +static inline struct f_lb_opts *to_f_lb_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct f_lb_opts, + func_inst.group); +} + +CONFIGFS_ATTR_STRUCT(f_lb_opts); +CONFIGFS_ATTR_OPS(f_lb_opts); + +static void lb_attr_release(struct config_item *item) +{ + struct f_lb_opts *lb_opts = to_f_lb_opts(item); + + usb_put_function_instance(&lb_opts->func_inst); +} + +static struct configfs_item_operations lb_item_ops = { + .release = lb_attr_release, + .show_attribute = f_lb_opts_attr_show, + .store_attribute = f_lb_opts_attr_store, +}; + +static ssize_t f_lb_opts_qlen_show(struct f_lb_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->qlen); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_lb_opts_qlen_store(struct f_lb_opts *opts, + const char *page, size_t len) +{ + int ret; + u32 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou32(page, 0, &num); + if (ret) + goto end; + + opts->qlen = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_lb_opts_attribute f_lb_opts_qlen = + __CONFIGFS_ATTR(qlen, S_IRUGO | S_IWUSR, + f_lb_opts_qlen_show, + f_lb_opts_qlen_store); + +static ssize_t f_lb_opts_bulk_buflen_show(struct f_lb_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->bulk_buflen); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_lb_opts_bulk_buflen_store(struct f_lb_opts *opts, + const char *page, size_t len) +{ + int ret; + u32 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou32(page, 0, &num); + if (ret) + goto end; + + opts->bulk_buflen = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_lb_opts_attribute f_lb_opts_bulk_buflen = + __CONFIGFS_ATTR(buflen, S_IRUGO | S_IWUSR, + f_lb_opts_bulk_buflen_show, + f_lb_opts_bulk_buflen_store); + +static struct configfs_attribute *lb_attrs[] = { + &f_lb_opts_qlen.attr, + &f_lb_opts_bulk_buflen.attr, + NULL, +}; + +static struct config_item_type lb_func_type = { + .ct_item_ops = &lb_item_ops, + .ct_attrs = lb_attrs, + .ct_owner = THIS_MODULE, +}; + static void lb_free_instance(struct usb_function_instance *fi) { struct f_lb_opts *lb_opts; @@ -417,7 +542,14 @@ static struct usb_function_instance *loopback_alloc_instance(void) lb_opts = kzalloc(sizeof(*lb_opts), GFP_KERNEL); if (!lb_opts) return ERR_PTR(-ENOMEM); + mutex_init(&lb_opts->lock); lb_opts->func_inst.free_func_inst = lb_free_instance; + lb_opts->bulk_buflen = GZERO_BULK_BUFLEN; + lb_opts->qlen = GZERO_QLEN; + + config_group_init_type_name(&lb_opts->func_inst.group, "", + &lb_func_type); + return &lb_opts->func_inst; } DECLARE_USB_FUNCTION(Loopback, loopback_alloc_instance, loopback_alloc); diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h index a1c1a97..19ec50a 100644 --- a/drivers/usb/gadget/g_zero.h +++ b/drivers/usb/gadget/g_zero.h @@ -6,6 +6,9 @@ #ifndef __G_ZERO_H #define __G_ZERO_H +#define GZERO_BULK_BUFLEN 4096 +#define GZERO_QLEN 32 + struct usb_zero_options { unsigned pattern; unsigned isoc_interval; @@ -30,6 +33,15 @@ struct f_lb_opts { struct usb_function_instance func_inst; unsigned bulk_buflen; unsigned qlen; + + /* + * Read/write access to configfs attributes is handled by configfs. + * + * This is to protect the data from concurrent access by read/write + * and create symlink/remove symlink. + */ + struct mutex lock; + int refcnt; }; void lb_modexit(void); diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 0dd07ae..d954bba 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -66,8 +66,8 @@ module_param(loopdefault, bool, S_IRUGO|S_IWUSR); static struct usb_zero_options gzero_options = { .isoc_interval = 4, .isoc_maxpacket = 1024, - .bulk_buflen = 4096, - .qlen = 32, + .bulk_buflen = GZERO_BULK_BUFLEN, + .qlen = GZERO_QLEN, }; /*-------------------------------------------------------------------------*/ -- cgit v0.10.2 From 25d8015177ae7baedb8bdc76dffc0884b0d785a3 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 7 Nov 2013 08:41:28 +0100 Subject: usb: gadget: f_sourcesink: add configfs support Add support for using the sourcesink function in gadgets composed with configfs. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/Documentation/ABI/testing/configfs-usb-gadget-sourcesink b/Documentation/ABI/testing/configfs-usb-gadget-sourcesink new file mode 100644 index 0000000..a30f309 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-sourcesink @@ -0,0 +1,12 @@ +What: /config/usb-gadget/gadget/functions/SourceSink.name +Date: Nov 2013 +KenelVersion: 3.13 +Description: + The attributes: + + pattern - 0 (all zeros), 1 (mod63), 2 (none) + isoc_interval - 1..16 + isoc_maxpacket - 0 - 1023 (fs), 0 - 1024 (hs/ss) + isoc_mult - 0..2 (hs/ss only) + isoc_maxburst - 0..15 (ss only) + qlen - buffer length diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 26fe876..5f1d444 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -689,12 +689,13 @@ config USB_CONFIGFS_MASS_STORAGE device (in much the same way as the "loop" device driver), specified as a module parameter or sysfs option. -config USB_CONFIGFS_F_LB - boolean "Loopback function (for testing)" +config USB_CONFIGFS_F_LB_SS + boolean "Loopback and sourcesink function (for testing)" depends on USB_CONFIGFS select USB_F_SS_LB help - It loops back a configurable number of transfers. + Loopback function loops back a configurable number of transfers. + Sourcesink function either sinks and sources bulk data. It also implements control requests, for "chapter 9" conformance. Make this be the first driver you try using on top of any new USB peripheral controller driver. Then you can use host-side diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index c5ad4a1..5d4251e 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -477,6 +477,14 @@ no_iso: static void sourcesink_free_func(struct usb_function *f) { + struct f_ss_opts *opts; + + opts = container_of(f->fi, struct f_ss_opts, func_inst); + + mutex_lock(&opts->lock); + opts->refcnt--; + mutex_unlock(&opts->lock); + usb_free_all_descriptors(f); kfree(func_to_ss(f)); } @@ -865,6 +873,11 @@ static struct usb_function *source_sink_alloc_func( return NULL; ss_opts = container_of(fi, struct f_ss_opts, func_inst); + + mutex_lock(&ss_opts->lock); + ss_opts->refcnt++; + mutex_unlock(&ss_opts->lock); + pattern = ss_opts->pattern; isoc_interval = ss_opts->isoc_interval; isoc_maxpacket = ss_opts->isoc_maxpacket; @@ -885,6 +898,303 @@ static struct usb_function *source_sink_alloc_func( return &ss->function; } +static inline struct f_ss_opts *to_f_ss_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct f_ss_opts, + func_inst.group); +} + +CONFIGFS_ATTR_STRUCT(f_ss_opts); +CONFIGFS_ATTR_OPS(f_ss_opts); + +static void ss_attr_release(struct config_item *item) +{ + struct f_ss_opts *ss_opts = to_f_ss_opts(item); + + usb_put_function_instance(&ss_opts->func_inst); +} + +static struct configfs_item_operations ss_item_ops = { + .release = ss_attr_release, + .show_attribute = f_ss_opts_attr_show, + .store_attribute = f_ss_opts_attr_store, +}; + +static ssize_t f_ss_opts_pattern_show(struct f_ss_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->pattern); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_ss_opts_pattern_store(struct f_ss_opts *opts, + const char *page, size_t len) +{ + int ret; + u8 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou8(page, 0, &num); + if (ret) + goto end; + + if (num != 0 && num != 1 && num != 2) { + ret = -EINVAL; + goto end; + } + + opts->pattern = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_ss_opts_attribute f_ss_opts_pattern = + __CONFIGFS_ATTR(pattern, S_IRUGO | S_IWUSR, + f_ss_opts_pattern_show, + f_ss_opts_pattern_store); + +static ssize_t f_ss_opts_isoc_interval_show(struct f_ss_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->isoc_interval); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_ss_opts_isoc_interval_store(struct f_ss_opts *opts, + const char *page, size_t len) +{ + int ret; + u8 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou8(page, 0, &num); + if (ret) + goto end; + + if (num > 16) { + ret = -EINVAL; + goto end; + } + + opts->isoc_interval = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_ss_opts_attribute f_ss_opts_isoc_interval = + __CONFIGFS_ATTR(isoc_interval, S_IRUGO | S_IWUSR, + f_ss_opts_isoc_interval_show, + f_ss_opts_isoc_interval_store); + +static ssize_t f_ss_opts_isoc_maxpacket_show(struct f_ss_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->isoc_maxpacket); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_ss_opts_isoc_maxpacket_store(struct f_ss_opts *opts, + const char *page, size_t len) +{ + int ret; + u16 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou16(page, 0, &num); + if (ret) + goto end; + + if (num > 1024) { + ret = -EINVAL; + goto end; + } + + opts->isoc_maxpacket = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_ss_opts_attribute f_ss_opts_isoc_maxpacket = + __CONFIGFS_ATTR(isoc_maxpacket, S_IRUGO | S_IWUSR, + f_ss_opts_isoc_maxpacket_show, + f_ss_opts_isoc_maxpacket_store); + +static ssize_t f_ss_opts_isoc_mult_show(struct f_ss_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->isoc_mult); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_ss_opts_isoc_mult_store(struct f_ss_opts *opts, + const char *page, size_t len) +{ + int ret; + u8 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou8(page, 0, &num); + if (ret) + goto end; + + if (num > 2) { + ret = -EINVAL; + goto end; + } + + opts->isoc_mult = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_ss_opts_attribute f_ss_opts_isoc_mult = + __CONFIGFS_ATTR(isoc_mult, S_IRUGO | S_IWUSR, + f_ss_opts_isoc_mult_show, + f_ss_opts_isoc_mult_store); + +static ssize_t f_ss_opts_isoc_maxburst_show(struct f_ss_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->isoc_maxburst); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_ss_opts_isoc_maxburst_store(struct f_ss_opts *opts, + const char *page, size_t len) +{ + int ret; + u8 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou8(page, 0, &num); + if (ret) + goto end; + + if (num > 15) { + ret = -EINVAL; + goto end; + } + + opts->isoc_maxburst = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_ss_opts_attribute f_ss_opts_isoc_maxburst = + __CONFIGFS_ATTR(isoc_maxburst, S_IRUGO | S_IWUSR, + f_ss_opts_isoc_maxburst_show, + f_ss_opts_isoc_maxburst_store); + +static ssize_t f_ss_opts_bulk_buflen_show(struct f_ss_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->bulk_buflen); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t f_ss_opts_bulk_buflen_store(struct f_ss_opts *opts, + const char *page, size_t len) +{ + int ret; + u32 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + + ret = kstrtou32(page, 0, &num); + if (ret) + goto end; + + opts->bulk_buflen = num; + ret = len; +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct f_ss_opts_attribute f_ss_opts_bulk_buflen = + __CONFIGFS_ATTR(buflen, S_IRUGO | S_IWUSR, + f_ss_opts_bulk_buflen_show, + f_ss_opts_bulk_buflen_store); + +static struct configfs_attribute *ss_attrs[] = { + &f_ss_opts_pattern.attr, + &f_ss_opts_isoc_interval.attr, + &f_ss_opts_isoc_maxpacket.attr, + &f_ss_opts_isoc_mult.attr, + &f_ss_opts_isoc_maxburst.attr, + &f_ss_opts_bulk_buflen.attr, + NULL, +}; + +static struct config_item_type ss_func_type = { + .ct_item_ops = &ss_item_ops, + .ct_attrs = ss_attrs, + .ct_owner = THIS_MODULE, +}; + static void source_sink_free_instance(struct usb_function_instance *fi) { struct f_ss_opts *ss_opts; @@ -900,7 +1210,15 @@ static struct usb_function_instance *source_sink_alloc_inst(void) ss_opts = kzalloc(sizeof(*ss_opts), GFP_KERNEL); if (!ss_opts) return ERR_PTR(-ENOMEM); + mutex_init(&ss_opts->lock); ss_opts->func_inst.free_func_inst = source_sink_free_instance; + ss_opts->isoc_interval = GZERO_ISOC_INTERVAL; + ss_opts->isoc_maxpacket = GZERO_ISOC_MAXPACKET; + ss_opts->bulk_buflen = GZERO_BULK_BUFLEN; + + config_group_init_type_name(&ss_opts->func_inst.group, "", + &ss_func_type); + return &ss_opts->func_inst; } DECLARE_USB_FUNCTION(SourceSink, source_sink_alloc_inst, diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h index 19ec50a..15f1809 100644 --- a/drivers/usb/gadget/g_zero.h +++ b/drivers/usb/gadget/g_zero.h @@ -8,6 +8,8 @@ #define GZERO_BULK_BUFLEN 4096 #define GZERO_QLEN 32 +#define GZERO_ISOC_INTERVAL 4 +#define GZERO_ISOC_MAXPACKET 1024 struct usb_zero_options { unsigned pattern; @@ -27,6 +29,15 @@ struct f_ss_opts { unsigned isoc_mult; unsigned isoc_maxburst; unsigned bulk_buflen; + + /* + * Read/write access to configfs attributes is handled by configfs. + * + * This is to protect the data from concurrent access by read/write + * and create symlink/remove symlink. + */ + struct mutex lock; + int refcnt; }; struct f_lb_opts { diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index d954bba..00b4019 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -64,8 +64,8 @@ static bool loopdefault = 0; module_param(loopdefault, bool, S_IRUGO|S_IWUSR); static struct usb_zero_options gzero_options = { - .isoc_interval = 4, - .isoc_maxpacket = 1024, + .isoc_interval = GZERO_ISOC_INTERVAL, + .isoc_maxpacket = GZERO_ISOC_MAXPACKET, .bulk_buflen = GZERO_BULK_BUFLEN, .qlen = GZERO_QLEN, }; -- cgit v0.10.2 From 587194873820a4a1b2eda260ac851394095afd77 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 9 Sep 2013 21:03:09 +0300 Subject: xhci: convert TRB_CYCLE to le32 before using it to set Link TRB's cycle bit This patch converts TRB_CYCLE to le32 to update correctly the Cycle Bit in 'control' field of the link TRB. This bug was found using sparse. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 49b8bd0..90709cf 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -57,7 +57,7 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, /* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */ if (cycle_state == 0) { for (i = 0; i < TRBS_PER_SEGMENT; i++) - seg->trbs[i].link.control |= TRB_CYCLE; + seg->trbs[i].link.control |= cpu_to_le32(TRB_CYCLE); } seg->dma = dma; seg->next = NULL; @@ -308,7 +308,8 @@ static void xhci_reinit_cached_ring(struct xhci_hcd *xhci, sizeof(union xhci_trb)*TRBS_PER_SEGMENT); if (cycle_state == 0) { for (i = 0; i < TRBS_PER_SEGMENT; i++) - seg->trbs[i].link.control |= TRB_CYCLE; + seg->trbs[i].link.control |= + cpu_to_le32(TRB_CYCLE); } /* All endpoint rings have link TRBs */ xhci_link_segments(xhci, seg, seg->next, type); -- cgit v0.10.2 From 7e76ad431545d013911ddc744843118b43d01e89 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 9 Sep 2013 21:03:10 +0300 Subject: xhci: fix incorrect type in assignment in handle_device_notification() This patch converts Event TRB's 3rd field, which has type le32, to CPU byteorder before using it to retrieve the Slot ID with TRB_TO_SLOT_ID macro. This bug was found using sparse. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 1e2f3f4..22da093 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1655,7 +1655,7 @@ static void handle_device_notification(struct xhci_hcd *xhci, u32 slot_id; struct usb_device *udev; - slot_id = TRB_TO_SLOT_ID(event->generic.field[3]); + slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->generic.field[3])); if (!xhci->devs[slot_id]) { xhci_warn(xhci, "Device Notification event for " "unused slot %u\n", slot_id); -- cgit v0.10.2 From f00466963817c8a240f022af864cdc39d482cdb7 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 9 Sep 2013 21:03:11 +0300 Subject: xhci: fix derivation of TRB's DMA address in xhci_log_event Trace Event Class This patch fixes the retrieval of the DMA address of the TRB that generated the event by converting the field[0] (low address bits) and field[1] (high address bits) to CPU byteorder and then typecasting field[1] to u64 so that the bitshift will not lead to overflow. In the original code, the typecasting of le32 to u64 was incorrect and the subsequent conversion to le64 reverts the low and high address parts. This bug was found using sparse. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index 20364cc..afe0933 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -120,8 +120,8 @@ DECLARE_EVENT_CLASS(xhci_log_event, ), TP_fast_assign( __entry->va = trb_va; - __entry->dma = le64_to_cpu(((u64)ev->field[1]) << 32 | - ev->field[0]); + __entry->dma = ((u64)le32_to_cpu(ev->field[1])) << 32 | + le32_to_cpu(ev->field[0]); __entry->status = le32_to_cpu(ev->field[2]); __entry->flags = le32_to_cpu(ev->field[3]); memcpy(__get_dynamic_array(trb), trb_va, -- cgit v0.10.2 From d20c72256721411f55eb95beddf1d8a5d5da31eb Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 9 Sep 2013 21:03:12 +0300 Subject: xhci: fix sparse warning in xhci-trace.h This patch fixes the following sparse warnings: drivers/usb/host/./xhci-trace.h:116:1: warning: cast to restricted __le32 drivers/usb/host/./xhci-trace.h:116:1: warning: cast to restricted __le32 drivers/usb/host/./xhci-trace.h:116:1: warning: restricted __le32 degrades to integer drivers/usb/host/./xhci-trace.h:116:1: warning: restricted __le32 degrades to integer by converting the field 'trb' of the trace buffer entry structure from array with elements of type __le32 to an array with elements of type u8. Into the trb array are copied the contents of the TRB that generated the event. The trace-cmd tool with the help of plugin_xhci.py will use this field to parse the TRB contents in a human readable way. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index afe0933..dde3959 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -116,7 +116,7 @@ DECLARE_EVENT_CLASS(xhci_log_event, __field(u64, dma) __field(u32, status) __field(u32, flags) - __dynamic_array(__le32, trb, 4) + __dynamic_array(u8, trb, sizeof(struct xhci_generic_trb)) ), TP_fast_assign( __entry->va = trb_va; -- cgit v0.10.2 From 0c052aabe66c495bf1248f301a8e745da66c6633 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Fri, 15 Nov 2013 03:18:07 +0200 Subject: xhci: fix incorrect type in assignment in xhci_address_device() The field 'dev_info' in struct xhci_slot_ctx has type __le32 and it needs to be converted to CPU byteorder for the correct retrieval of its subfield 'Context Entries'. This field is used by the trace event 'xhci_address_ctx' to trace only the contexts of valid endpoints. This bug was found using sparse. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 4265b48..a96b35c 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3771,7 +3771,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2); trace_xhci_address_ctx(xhci, virt_dev->in_ctx, - slot_ctx->dev_info >> 27); + le32_to_cpu(slot_ctx->dev_info) >> 27); spin_lock_irqsave(&xhci->lock, flags); cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring); @@ -3850,7 +3850,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) xhci_dbg(xhci, "Slot ID %d Input Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->in_ctx, 2); trace_xhci_address_ctx(xhci, virt_dev->in_ctx, - slot_ctx->dev_info >> 27); + le32_to_cpu(slot_ctx->dev_info) >> 27); xhci_dbg(xhci, "Slot ID %d Output Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->out_ctx, 2); /* @@ -3859,7 +3859,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) */ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); trace_xhci_address_ctx(xhci, virt_dev->out_ctx, - slot_ctx->dev_info >> 27); + le32_to_cpu(slot_ctx->dev_info) >> 27); /* Zero the input context control for later use */ ctrl_ctx->add_flags = 0; ctrl_ctx->drop_flags = 0; -- cgit v0.10.2 From 64ba419b7a5acf5fc934bfad9cc46c7f17ab8026 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 26 Aug 2013 23:29:46 +0300 Subject: xhci: replace USB_MAXINTERFACES with config->desc.bNumInterface This patch replaces USB_MAXINTERFACES with config->desc.bNumInterface in the termination condition for the loop that updates the LPM timeout of the endpoints on the cofiguration's interfaces, in xhci_calculate_lpm_timeout(), to avoid unnecessary loop cycles since most configurations come with 1-2 interfaces while USB_MAXINTERFACES is 32. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index a96b35c..1798c53 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4455,7 +4455,7 @@ static u16 xhci_calculate_lpm_timeout(struct usb_hcd *hcd, if (!config) return timeout; - for (i = 0; i < USB_MAXINTERFACES; i++) { + for (i = 0; i < config->desc.bNumInterfaces; i++) { struct usb_driver *driver; struct usb_interface *intf = config->interface[i]; -- cgit v0.10.2 From 63a67a72d63dd077c2313cf19eb29d8e4bfa6963 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 26 Aug 2013 23:29:47 +0300 Subject: xhci: fix SCT_FOR_CTX(p) macro SCT_FOR_CTX(p) is defined as (((p) << 1) & 0x7) in which case if we want to set the stream context type to SCT_SSA_256 i.e 0x7 (although secondary stream arrays are not yet supported) using this macro definition we will get actually 0x6 which is not what we want. This patch fixes the above issue by defining the SCT_FOR_CTX(p) macro as (((p) & 0x7) << 1) Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 03c74b7..a33e8b5 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -752,7 +752,7 @@ struct xhci_stream_ctx { }; /* Stream Context Types (section 6.4.1) - bits 3:1 of stream ctx deq ptr */ -#define SCT_FOR_CTX(p) (((p) << 1) & 0x7) +#define SCT_FOR_CTX(p) (((p) & 0x7) << 1) /* Secondary stream array type, dequeue pointer is to a transfer ring */ #define SCT_SEC_TR 0 /* Primary stream array type, dequeue pointer is to a transfer ring */ -- cgit v0.10.2 From 0d3703be3a671ca225a796f4ae6e904dd83c2e07 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 26 Aug 2013 23:29:48 +0300 Subject: xhci: remove unnecessary check in xhci_free_stream_info() This patch removes the unneccessary check 'if (stream_info)' because there is already a check few lines above which ensures that stream_info is not NULL. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 90709cf..1445e08 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -722,8 +722,7 @@ void xhci_free_stream_info(struct xhci_hcd *xhci, stream_info->stream_ctx_array, stream_info->ctx_array_dma); - if (stream_info) - kfree(stream_info->stream_rings); + kfree(stream_info->stream_rings); kfree(stream_info); } -- cgit v0.10.2 From ef73400ca5d1ad695374988510b9977c41b81f3e Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 9 Sep 2013 21:03:06 +0300 Subject: xhci: fix incorrect type in assignment in xhci_count_num_new_endpoints() The fields 'add_flags' and 'drop_flags' in struct xhci_input_control_ctx have type __le32 and need to be converted to CPU byteorder before being used to derive the number of added endpoints. This bug was found using sparse. This patch is not suitable for stable, since the bug would only be triggered on big endian systems, and the code only runs for Intel xHCI host controllers, which are always integrated into little endian systems. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 1798c53..b7289e9 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1892,8 +1892,8 @@ static u32 xhci_count_num_new_endpoints(struct xhci_hcd *xhci, * (bit 1). The default control endpoint is added during the Address * Device command and is never removed until the slot is disabled. */ - valid_add_flags = ctrl_ctx->add_flags >> 2; - valid_drop_flags = ctrl_ctx->drop_flags >> 2; + valid_add_flags = le32_to_cpu(ctrl_ctx->add_flags) >> 2; + valid_drop_flags = le32_to_cpu(ctrl_ctx->drop_flags) >> 2; /* Use hweight32 to count the number of ones in the add flags, or * number of endpoints added. Don't count endpoints that are changed -- cgit v0.10.2 From 78d1ff025698e1a70e3fef38342648d4dc826cf6 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Mon, 9 Sep 2013 21:03:07 +0300 Subject: xhci: fix incorrect type in assignment in xhci_count_num_dropped_endpoints() The fields 'add_flags' and 'drop_flags' in struct xhci_input_control_ctx have type __le32 and need to be converted to CPU byteorder before being used to derive the number of dropped endpoints. This bug was found using sparse. This patch is not suitable for stable, since the bug would only be triggered on big endian systems, and the code only runs for Intel xHCI host controllers, which are always integrated into little endian systems. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index b7289e9..900ba36 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1909,8 +1909,8 @@ static unsigned int xhci_count_num_dropped_endpoints(struct xhci_hcd *xhci, u32 valid_add_flags; u32 valid_drop_flags; - valid_add_flags = ctrl_ctx->add_flags >> 2; - valid_drop_flags = ctrl_ctx->drop_flags >> 2; + valid_add_flags = le32_to_cpu(ctrl_ctx->add_flags) >> 2; + valid_drop_flags = le32_to_cpu(ctrl_ctx->drop_flags) >> 2; return hweight32(valid_drop_flags) - hweight32(valid_add_flags & valid_drop_flags); -- cgit v0.10.2 From 2a100047481a5c7430c72883b586eb6f2df34812 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Fri, 15 Nov 2013 03:18:08 +0200 Subject: xhci: remove conversion from generic to pci device in xhci_mem.c This patch removes the to_pci_dev() conversion performed to generic struct device since it is not actually useful (the pointer to the generic device can be used directly rather through a conversion to pci_dev) and it is pci bus specific. This isn't stable material because this code will produce harmless behavior on non-PCI xHCI hosts. The pci_device pointer is never dereferenced, only used to re-calculate the underlying device pointer. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 1445e08..99e7251 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -433,10 +433,10 @@ static void xhci_free_stream_ctx(struct xhci_hcd *xhci, unsigned int num_stream_ctxs, struct xhci_stream_ctx *stream_ctx, dma_addr_t dma) { - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct device *dev = xhci_to_hcd(xhci)->self.controller; if (num_stream_ctxs > MEDIUM_STREAM_ARRAY_SIZE) - dma_free_coherent(&pdev->dev, + dma_free_coherent(dev, sizeof(struct xhci_stream_ctx)*num_stream_ctxs, stream_ctx, dma); else if (num_stream_ctxs <= SMALL_STREAM_ARRAY_SIZE) @@ -461,10 +461,10 @@ static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, unsigned int num_stream_ctxs, dma_addr_t *dma, gfp_t mem_flags) { - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct device *dev = xhci_to_hcd(xhci)->self.controller; if (num_stream_ctxs > MEDIUM_STREAM_ARRAY_SIZE) - return dma_alloc_coherent(&pdev->dev, + return dma_alloc_coherent(dev, sizeof(struct xhci_stream_ctx)*num_stream_ctxs, dma, mem_flags); else if (num_stream_ctxs <= SMALL_STREAM_ARRAY_SIZE) @@ -1616,7 +1616,7 @@ static void scratchpad_free(struct xhci_hcd *xhci) { int num_sp; int i; - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct device *dev = xhci_to_hcd(xhci)->self.controller; if (!xhci->scratchpad) return; @@ -1624,13 +1624,13 @@ static void scratchpad_free(struct xhci_hcd *xhci) num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2); for (i = 0; i < num_sp; i++) { - dma_free_coherent(&pdev->dev, xhci->page_size, + dma_free_coherent(dev, xhci->page_size, xhci->scratchpad->sp_buffers[i], xhci->scratchpad->sp_dma_buffers[i]); } kfree(xhci->scratchpad->sp_dma_buffers); kfree(xhci->scratchpad->sp_buffers); - dma_free_coherent(&pdev->dev, num_sp * sizeof(u64), + dma_free_coherent(dev, num_sp * sizeof(u64), xhci->scratchpad->sp_array, xhci->scratchpad->sp_dma); kfree(xhci->scratchpad); @@ -1692,7 +1692,7 @@ void xhci_free_command(struct xhci_hcd *xhci, void xhci_mem_cleanup(struct xhci_hcd *xhci) { - struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); + struct device *dev = xhci_to_hcd(xhci)->self.controller; struct xhci_cd *cur_cd, *next_cd; int size; int i, j, num_ports; @@ -1700,7 +1700,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) /* Free the Event Ring Segment Table and the actual Event Ring */ size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries); if (xhci->erst.entries) - dma_free_coherent(&pdev->dev, size, + dma_free_coherent(dev, size, xhci->erst.entries, xhci->erst.erst_dma_addr); xhci->erst.entries = NULL; xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed ERST"); @@ -1748,7 +1748,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) "Freed medium stream array pool"); if (xhci->dcbaa) - dma_free_coherent(&pdev->dev, sizeof(*xhci->dcbaa), + dma_free_coherent(dev, sizeof(*xhci->dcbaa), xhci->dcbaa, xhci->dcbaa->dma); xhci->dcbaa = NULL; -- cgit v0.10.2 From b0ba9720846c980d053b1ffcd766fddfbef95d4c Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Fri, 15 Nov 2013 05:34:06 +0200 Subject: xhci: replace xhci_readl() with readl() Function xhci_readl() is used to read 32bit xHC registers residing in MMIO address space. It takes as first argument a pointer to the xhci_hcd although it does not use it. xhci_readl() internally simply calls readl(). This creates an illusion that xhci_readl() is an xhci specific function that has to be called in a context where a pointer to xhci_hcd is available. Remove the unnecessary xhci_readl() wrapper function and replace its calls to with calls to readl() to make the code more straightforward. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 73503a8..eb009a4 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -32,7 +32,7 @@ void xhci_dbg_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, "// xHCI capability registers at %p:\n", xhci->cap_regs); - temp = xhci_readl(xhci, &xhci->cap_regs->hc_capbase); + temp = readl(&xhci->cap_regs->hc_capbase); xhci_dbg(xhci, "// @%p = 0x%x (CAPLENGTH AND HCIVERSION)\n", &xhci->cap_regs->hc_capbase, temp); xhci_dbg(xhci, "// CAPLENGTH: 0x%x\n", @@ -44,13 +44,13 @@ void xhci_dbg_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, "// xHCI operational registers at %p:\n", xhci->op_regs); - temp = xhci_readl(xhci, &xhci->cap_regs->run_regs_off); + temp = readl(&xhci->cap_regs->run_regs_off); xhci_dbg(xhci, "// @%p = 0x%x RTSOFF\n", &xhci->cap_regs->run_regs_off, (unsigned int) temp & RTSOFF_MASK); xhci_dbg(xhci, "// xHCI runtime registers at %p:\n", xhci->run_regs); - temp = xhci_readl(xhci, &xhci->cap_regs->db_off); + temp = readl(&xhci->cap_regs->db_off); xhci_dbg(xhci, "// @%p = 0x%x DBOFF\n", &xhci->cap_regs->db_off, temp); xhci_dbg(xhci, "// Doorbell array at %p:\n", xhci->dba); } @@ -61,7 +61,7 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs); - temp = xhci_readl(xhci, &xhci->cap_regs->hc_capbase); + temp = readl(&xhci->cap_regs->hc_capbase); xhci_dbg(xhci, "CAPLENGTH AND HCIVERSION 0x%x:\n", (unsigned int) temp); xhci_dbg(xhci, "CAPLENGTH: 0x%x\n", @@ -69,7 +69,7 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, "HCIVERSION: 0x%x\n", (unsigned int) HC_VERSION(temp)); - temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params1); + temp = readl(&xhci->cap_regs->hcs_params1); xhci_dbg(xhci, "HCSPARAMS 1: 0x%x\n", (unsigned int) temp); xhci_dbg(xhci, " Max device slots: %u\n", @@ -79,7 +79,7 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, " Max ports: %u\n", (unsigned int) HCS_MAX_PORTS(temp)); - temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params2); + temp = readl(&xhci->cap_regs->hcs_params2); xhci_dbg(xhci, "HCSPARAMS 2: 0x%x\n", (unsigned int) temp); xhci_dbg(xhci, " Isoc scheduling threshold: %u\n", @@ -87,7 +87,7 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, " Maximum allowed segments in event ring: %u\n", (unsigned int) HCS_ERST_MAX(temp)); - temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params3); + temp = readl(&xhci->cap_regs->hcs_params3); xhci_dbg(xhci, "HCSPARAMS 3 0x%x:\n", (unsigned int) temp); xhci_dbg(xhci, " Worst case U1 device exit latency: %u\n", @@ -95,14 +95,14 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, " Worst case U2 device exit latency: %u\n", (unsigned int) HCS_U2_LATENCY(temp)); - temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params); + temp = readl(&xhci->cap_regs->hcc_params); xhci_dbg(xhci, "HCC PARAMS 0x%x:\n", (unsigned int) temp); xhci_dbg(xhci, " HC generates %s bit addresses\n", HCC_64BIT_ADDR(temp) ? "64" : "32"); /* FIXME */ xhci_dbg(xhci, " FIXME: more HCCPARAMS debugging\n"); - temp = xhci_readl(xhci, &xhci->cap_regs->run_regs_off); + temp = readl(&xhci->cap_regs->run_regs_off); xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK); } @@ -110,7 +110,7 @@ static void xhci_print_command_reg(struct xhci_hcd *xhci) { u32 temp; - temp = xhci_readl(xhci, &xhci->op_regs->command); + temp = readl(&xhci->op_regs->command); xhci_dbg(xhci, "USBCMD 0x%x:\n", temp); xhci_dbg(xhci, " HC is %s\n", (temp & CMD_RUN) ? "running" : "being stopped"); @@ -128,7 +128,7 @@ static void xhci_print_status(struct xhci_hcd *xhci) { u32 temp; - temp = xhci_readl(xhci, &xhci->op_regs->status); + temp = readl(&xhci->op_regs->status); xhci_dbg(xhci, "USBSTS 0x%x:\n", temp); xhci_dbg(xhci, " Event ring is %sempty\n", (temp & STS_EINT) ? "not " : ""); @@ -163,7 +163,7 @@ static void xhci_print_ports(struct xhci_hcd *xhci) for (j = 0; j < NUM_PORT_REGS; ++j) { xhci_dbg(xhci, "%p port %s reg = 0x%x\n", addr, names[j], - (unsigned int) xhci_readl(xhci, addr)); + (unsigned int) readl(addr)); addr++; } } @@ -177,7 +177,7 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num) u64 temp_64; addr = &ir_set->irq_pending; - temp = xhci_readl(xhci, addr); + temp = readl(addr); if (temp == XHCI_INIT_VALUE) return; @@ -187,17 +187,17 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num) (unsigned int)temp); addr = &ir_set->irq_control; - temp = xhci_readl(xhci, addr); + temp = readl(addr); xhci_dbg(xhci, " %p: ir_set.control = 0x%x\n", addr, (unsigned int)temp); addr = &ir_set->erst_size; - temp = xhci_readl(xhci, addr); + temp = readl(addr); xhci_dbg(xhci, " %p: ir_set.erst_size = 0x%x\n", addr, (unsigned int)temp); addr = &ir_set->rsvd; - temp = xhci_readl(xhci, addr); + temp = readl(addr); if (temp != XHCI_INIT_VALUE) xhci_dbg(xhci, " WARN: %p: ir_set.rsvd = 0x%x\n", addr, (unsigned int)temp); @@ -219,12 +219,12 @@ void xhci_print_run_regs(struct xhci_hcd *xhci) int i; xhci_dbg(xhci, "xHCI runtime registers at %p:\n", xhci->run_regs); - temp = xhci_readl(xhci, &xhci->run_regs->microframe_index); + temp = readl(&xhci->run_regs->microframe_index); xhci_dbg(xhci, " %p: Microframe index = 0x%x\n", &xhci->run_regs->microframe_index, (unsigned int) temp); for (i = 0; i < 7; ++i) { - temp = xhci_readl(xhci, &xhci->run_regs->rsvd[i]); + temp = readl(&xhci->run_regs->rsvd[i]); if (temp != XHCI_INIT_VALUE) xhci_dbg(xhci, " WARN: %p: Rsvd[%i] = 0x%x\n", &xhci->run_regs->rsvd[i], diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 805f234..70ed7c9 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -94,7 +94,7 @@ static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, */ memset(port_removable, 0, sizeof(port_removable)); for (i = 0; i < ports; i++) { - portsc = xhci_readl(xhci, xhci->usb2_ports[i]); + portsc = readl(xhci->usb2_ports[i]); /* If a device is removable, PORTSC reports a 0, same as in the * hub descriptor DeviceRemovable bits. */ @@ -148,7 +148,7 @@ static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, port_removable = 0; /* bit 0 is reserved, bit 1 is for port 1, etc. */ for (i = 0; i < ports; i++) { - portsc = xhci_readl(xhci, xhci->usb3_ports[i]); + portsc = readl(xhci->usb3_ports[i]); if (portsc & PORT_DEV_REMOVE) port_removable |= 1 << (i + 1); } @@ -343,7 +343,7 @@ static void xhci_disable_port(struct usb_hcd *hcd, struct xhci_hcd *xhci, /* Write 1 to disable the port */ xhci_writel(xhci, port_status | PORT_PE, addr); - port_status = xhci_readl(xhci, addr); + port_status = readl(addr); xhci_dbg(xhci, "disable port, actual port %d status = 0x%x\n", wIndex, port_status); } @@ -389,7 +389,7 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue, } /* Change bits are all write 1 to clear */ xhci_writel(xhci, port_status | status, addr); - port_status = xhci_readl(xhci, addr); + port_status = readl(addr); xhci_dbg(xhci, "clear port %s change, actual port %d status = 0x%x\n", port_change_bit, wIndex, port_status); } @@ -415,7 +415,7 @@ void xhci_set_link_state(struct xhci_hcd *xhci, __le32 __iomem **port_array, { u32 temp; - temp = xhci_readl(xhci, port_array[port_id]); + temp = readl(port_array[port_id]); temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | link_state; @@ -427,7 +427,7 @@ static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci, { u32 temp; - temp = xhci_readl(xhci, port_array[port_id]); + temp = readl(port_array[port_id]); temp = xhci_port_state_to_neutral(temp); if (wake_mask & USB_PORT_FEAT_REMOTE_WAKE_CONNECT) @@ -454,7 +454,7 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, { u32 temp; - temp = xhci_readl(xhci, port_array[port_id]); + temp = readl(port_array[port_id]); if (temp & port_bit) { temp = xhci_port_state_to_neutral(temp); temp |= port_bit; @@ -623,8 +623,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd, } xhci_ring_device(xhci, slot_id); } else { - int port_status = xhci_readl(xhci, - port_array[wIndex]); + int port_status = readl(port_array[wIndex]); xhci_warn(xhci, "Port resume took longer than %i msec, port status = 0x%x\n", XHCI_MAX_REXIT_TIMEOUT, port_status); @@ -733,12 +732,12 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* Set the U1 and U2 exit latencies. */ memcpy(buf, &usb_bos_descriptor, USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE); - temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params3); + temp = readl(&xhci->cap_regs->hcs_params3); buf[12] = HCS_U1_LATENCY(temp); put_unaligned_le16(HCS_U2_LATENCY(temp), &buf[13]); /* Indicate whether the host has LTM support. */ - temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params); + temp = readl(&xhci->cap_regs->hcc_params); if (HCC_LTC(temp)) buf[8] |= USB_LTM_SUPPORT; @@ -748,7 +747,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, if (!wIndex || wIndex > max_ports) goto error; wIndex--; - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); if (temp == 0xffffffff) { retval = -ENODEV; break; @@ -775,7 +774,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, if (!wIndex || wIndex > max_ports) goto error; wIndex--; - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); if (temp == 0xffffffff) { retval = -ENODEV; break; @@ -784,7 +783,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* FIXME: What new port features do we need to support? */ switch (wValue) { case USB_PORT_FEAT_SUSPEND: - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); if ((temp & PORT_PLS_MASK) != XDEV_U0) { /* Resume the port to U0 first */ xhci_set_link_state(xhci, port_array, wIndex, @@ -797,7 +796,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, * a port unless the port reports that it is in the * enabled (PED = ‘1’,PLS < ‘3’) state. */ - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) || (temp & PORT_PLS_MASK) >= XDEV_U3) { xhci_warn(xhci, "USB core suspending device " @@ -822,11 +821,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, msleep(10); /* wait device to enter */ spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); bus_state->suspended_ports |= 1 << wIndex; break; case USB_PORT_FEAT_LINK_STATE: - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); /* Disable port */ if (link_state == USB_SS_PORT_LS_SS_DISABLED) { @@ -841,7 +840,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, PORT_CEC; xhci_writel(xhci, temp | PORT_PE, port_array[wIndex]); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); break; } @@ -850,7 +849,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_dbg(xhci, "Enable port %d\n", wIndex); xhci_set_link_state(xhci, port_array, wIndex, link_state); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); break; } @@ -884,7 +883,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, msleep(20); /* wait device to enter */ spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); if (link_state == USB_SS_PORT_LS_U3) bus_state->suspended_ports |= 1 << wIndex; break; @@ -898,7 +897,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_writel(xhci, temp | PORT_POWER, port_array[wIndex]); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); xhci_dbg(xhci, "set port power, actual port %d status = 0x%x\n", wIndex, temp); spin_unlock_irqrestore(&xhci->lock, flags); @@ -913,13 +912,13 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = (temp | PORT_RESET); xhci_writel(xhci, temp, port_array[wIndex]); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); xhci_dbg(xhci, "set port reset, actual port %d status = 0x%x\n", wIndex, temp); break; case USB_PORT_FEAT_REMOTE_WAKE_MASK: xhci_set_remote_wake_mask(xhci, port_array, wIndex, wake_mask); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); xhci_dbg(xhci, "set port remote wake mask, " "actual port %d status = 0x%x\n", wIndex, temp); @@ -928,12 +927,12 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp |= PORT_WR; xhci_writel(xhci, temp, port_array[wIndex]); - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); break; case USB_PORT_FEAT_U1_TIMEOUT: if (hcd->speed != HCD_USB3) goto error; - temp = xhci_readl(xhci, port_array[wIndex] + PORTPMSC); + temp = readl(port_array[wIndex] + PORTPMSC); temp &= ~PORT_U1_TIMEOUT_MASK; temp |= PORT_U1_TIMEOUT(timeout); xhci_writel(xhci, temp, port_array[wIndex] + PORTPMSC); @@ -941,7 +940,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case USB_PORT_FEAT_U2_TIMEOUT: if (hcd->speed != HCD_USB3) goto error; - temp = xhci_readl(xhci, port_array[wIndex] + PORTPMSC); + temp = readl(port_array[wIndex] + PORTPMSC); temp &= ~PORT_U2_TIMEOUT_MASK; temp |= PORT_U2_TIMEOUT(timeout); xhci_writel(xhci, temp, port_array[wIndex] + PORTPMSC); @@ -950,13 +949,13 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, goto error; } /* unblock any posted writes */ - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); break; case ClearPortFeature: if (!wIndex || wIndex > max_ports) goto error; wIndex--; - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); if (temp == 0xffffffff) { retval = -ENODEV; break; @@ -965,7 +964,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = xhci_port_state_to_neutral(temp); switch (wValue) { case USB_PORT_FEAT_SUSPEND: - temp = xhci_readl(xhci, port_array[wIndex]); + temp = readl(port_array[wIndex]); xhci_dbg(xhci, "clear USB_PORT_FEAT_SUSPEND\n"); xhci_dbg(xhci, "PORTSC %04x\n", temp); if (temp & PORT_RESET) @@ -1070,7 +1069,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) spin_lock_irqsave(&xhci->lock, flags); /* For each port, did anything change? If so, set that bit in buf. */ for (i = 0; i < max_ports; i++) { - temp = xhci_readl(xhci, port_array[i]); + temp = readl(port_array[i]); if (temp == 0xffffffff) { retval = -ENODEV; break; @@ -1124,7 +1123,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd) u32 t1, t2; int slot_id; - t1 = xhci_readl(xhci, port_array[port_index]); + t1 = readl(port_array[port_index]); t2 = xhci_port_state_to_neutral(t1); if ((t1 & PORT_PE) && !(t1 & PORT_PLS_MASK)) { @@ -1187,7 +1186,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) } /* delay the irqs */ - temp = xhci_readl(xhci, &xhci->op_regs->command); + temp = readl(&xhci->op_regs->command); temp &= ~CMD_EIE; xhci_writel(xhci, temp, &xhci->op_regs->command); @@ -1198,7 +1197,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) u32 temp; int slot_id; - temp = xhci_readl(xhci, port_array[port_index]); + temp = readl(port_array[port_index]); if (DEV_SUPERSPEED(temp)) temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); else @@ -1238,14 +1237,14 @@ int xhci_bus_resume(struct usb_hcd *hcd) xhci_writel(xhci, temp, port_array[port_index]); } - (void) xhci_readl(xhci, &xhci->op_regs->command); + (void) readl(&xhci->op_regs->command); bus_state->next_statechange = jiffies + msecs_to_jiffies(5); /* re-enable irqs */ - temp = xhci_readl(xhci, &xhci->op_regs->command); + temp = readl(&xhci->op_regs->command); temp |= CMD_EIE; xhci_writel(xhci, temp, &xhci->op_regs->command); - temp = xhci_readl(xhci, &xhci->op_regs->command); + temp = readl(&xhci->op_regs->command); spin_unlock_irqrestore(&xhci->lock, flags); return 0; diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 99e7251..3682a3b 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1986,7 +1986,7 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, } /* Port offset and count in the third dword, see section 7.2 */ - temp = xhci_readl(xhci, addr + 2); + temp = readl(addr + 2); port_offset = XHCI_EXT_PORT_OFF(temp); port_count = XHCI_EXT_PORT_COUNT(temp); xhci_dbg_trace(xhci, trace_xhci_dbg_init, @@ -2069,7 +2069,7 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) int cap_count = 0; addr = &xhci->cap_regs->hcc_params; - offset = XHCI_HCC_EXT_CAPS(xhci_readl(xhci, addr)); + offset = XHCI_HCC_EXT_CAPS(readl(addr)); if (offset == 0) { xhci_err(xhci, "No Extended Capability registers, " "unable to set up roothub.\n"); @@ -2106,7 +2106,7 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) /* count extended protocol capability entries for later caching */ do { u32 cap_id; - cap_id = xhci_readl(xhci, tmp_addr); + cap_id = readl(tmp_addr); if (XHCI_EXT_CAPS_ID(cap_id) == XHCI_EXT_CAPS_PROTOCOL) cap_count++; tmp_offset = XHCI_EXT_CAPS_NEXT(cap_id); @@ -2120,7 +2120,7 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) while (1) { u32 cap_id; - cap_id = xhci_readl(xhci, addr); + cap_id = readl(addr); if (XHCI_EXT_CAPS_ID(cap_id) == XHCI_EXT_CAPS_PROTOCOL) xhci_add_in_port(xhci, num_ports, addr, (u8) XHCI_EXT_PORT_MAJOR(cap_id), @@ -2224,7 +2224,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) INIT_LIST_HEAD(&xhci->cancel_cmd_list); - page_size = xhci_readl(xhci, &xhci->op_regs->page_size); + page_size = readl(&xhci->op_regs->page_size); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Supported page size register = 0x%x", page_size); for (i = 0; i < 16; i++) { @@ -2247,10 +2247,10 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) * Program the Number of Device Slots Enabled field in the CONFIG * register with the max value of slots the HC can handle. */ - val = HCS_MAX_SLOTS(xhci_readl(xhci, &xhci->cap_regs->hcs_params1)); + val = HCS_MAX_SLOTS(readl(&xhci->cap_regs->hcs_params1)); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// xHC can handle at most %d device slots.", val); - val2 = xhci_readl(xhci, &xhci->op_regs->config_reg); + val2 = readl(&xhci->op_regs->config_reg); val |= (val2 & ~HCS_SLOTS_MASK); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Setting Max device slots reg = 0x%x.", val); @@ -2331,7 +2331,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) */ xhci->cmd_ring_reserved_trbs++; - val = xhci_readl(xhci, &xhci->cap_regs->db_off); + val = readl(&xhci->cap_regs->db_off); val &= DBOFF_MASK; xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Doorbell array is located at offset 0x%x" @@ -2382,7 +2382,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) } /* set ERST count with the number of entries in the segment table */ - val = xhci_readl(xhci, &xhci->ir_set->erst_size); + val = readl(&xhci->ir_set->erst_size); val &= ERST_SIZE_MASK; val |= ERST_NUM_SEGS; xhci_dbg_trace(xhci, trace_xhci_dbg_init, @@ -2431,7 +2431,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) * is necessary for allowing USB 3.0 devices to do remote wakeup from * U3 (device suspend). */ - temp = xhci_readl(xhci, &xhci->op_regs->dev_notification); + temp = readl(&xhci->op_regs->dev_notification); temp &= ~DEV_NOTE_MASK; temp |= DEV_NOTE_FWAKE; xhci_writel(xhci, temp, &xhci->op_regs->dev_notification); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 22da093..9f2349b 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -297,7 +297,7 @@ void xhci_ring_cmd_db(struct xhci_hcd *xhci) xhci_dbg(xhci, "// Ding dong!\n"); xhci_writel(xhci, DB_VALUE_HOST, &xhci->dba->doorbell[0]); /* Flush PCI posted writes */ - xhci_readl(xhci, &xhci->dba->doorbell[0]); + readl(&xhci->dba->doorbell[0]); } static int xhci_abort_cmd_ring(struct xhci_hcd *xhci) @@ -1739,7 +1739,7 @@ static void handle_port_status(struct xhci_hcd *xhci, faked_port_index = find_faked_portnum_from_hw_portnum(hcd, xhci, port_id); - temp = xhci_readl(xhci, port_array[faked_port_index]); + temp = readl(port_array[faked_port_index]); if (hcd->state == HC_STATE_SUSPENDED) { xhci_dbg(xhci, "resume root hub\n"); usb_hcd_resume_root_hub(hcd); @@ -1748,7 +1748,7 @@ static void handle_port_status(struct xhci_hcd *xhci, if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) { xhci_dbg(xhci, "port resume event for port %d\n", port_id); - temp1 = xhci_readl(xhci, &xhci->op_regs->command); + temp1 = readl(&xhci->op_regs->command); if (!(temp1 & CMD_RUN)) { xhci_warn(xhci, "xHC is not running.\n"); goto cleanup; @@ -2831,7 +2831,7 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd) spin_lock(&xhci->lock); /* Check if the xHC generated the interrupt, or the irq is shared */ - status = xhci_readl(xhci, &xhci->op_regs->status); + status = readl(&xhci->op_regs->status); if (status == 0xffffffff) goto hw_died; @@ -2860,7 +2860,7 @@ hw_died: if (hcd->irq) { u32 irq_pending; /* Acknowledge the PCI interrupt */ - irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); + irq_pending = readl(&xhci->ir_set->irq_pending); irq_pending |= IMAN_IP; xhci_writel(xhci, irq_pending, &xhci->ir_set->irq_pending); } @@ -3931,7 +3931,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, if (ret) return ret; - start_frame = xhci_readl(xhci, &xhci->run_regs->microframe_index); + start_frame = readl(&xhci->run_regs->microframe_index); start_frame &= 0x3fff; urb->start_frame = start_frame; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 900ba36..5e6a865 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -60,7 +60,7 @@ int xhci_handshake(struct xhci_hcd *xhci, void __iomem *ptr, u32 result; do { - result = xhci_readl(xhci, ptr); + result = readl(ptr); if (result == ~(u32)0) /* card removed */ return -ENODEV; result &= mask; @@ -82,11 +82,11 @@ void xhci_quiesce(struct xhci_hcd *xhci) u32 mask; mask = ~(XHCI_IRQS); - halted = xhci_readl(xhci, &xhci->op_regs->status) & STS_HALT; + halted = readl(&xhci->op_regs->status) & STS_HALT; if (!halted) mask &= ~CMD_RUN; - cmd = xhci_readl(xhci, &xhci->op_regs->command); + cmd = readl(&xhci->op_regs->command); cmd &= mask; xhci_writel(xhci, cmd, &xhci->op_regs->command); } @@ -124,7 +124,7 @@ static int xhci_start(struct xhci_hcd *xhci) u32 temp; int ret; - temp = xhci_readl(xhci, &xhci->op_regs->command); + temp = readl(&xhci->op_regs->command); temp |= (CMD_RUN); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Turn on HC, cmd = 0x%x.", temp); @@ -158,14 +158,14 @@ int xhci_reset(struct xhci_hcd *xhci) u32 state; int ret, i; - state = xhci_readl(xhci, &xhci->op_regs->status); + state = readl(&xhci->op_regs->status); if ((state & STS_HALT) == 0) { xhci_warn(xhci, "Host controller not halted, aborting reset.\n"); return 0; } xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Reset the HC"); - command = xhci_readl(xhci, &xhci->op_regs->command); + command = readl(&xhci->op_regs->command); command |= CMD_RESET; xhci_writel(xhci, command, &xhci->op_regs->command); @@ -422,7 +422,7 @@ static void compliance_mode_recovery(unsigned long arg) xhci = (struct xhci_hcd *)arg; for (i = 0; i < xhci->num_usb3_ports; i++) { - temp = xhci_readl(xhci, xhci->usb3_ports[i]); + temp = readl(xhci->usb3_ports[i]); if ((temp & PORT_PLS_MASK) == USB_SS_PORT_LS_COMP_MOD) { /* * Compliance Mode Detected. Letting USB Core @@ -611,19 +611,19 @@ int xhci_run(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Set the interrupt modulation register"); - temp = xhci_readl(xhci, &xhci->ir_set->irq_control); + temp = readl(&xhci->ir_set->irq_control); temp &= ~ER_IRQ_INTERVAL_MASK; temp |= (u32) 160; xhci_writel(xhci, temp, &xhci->ir_set->irq_control); /* Set the HCD state before we enable the irqs */ - temp = xhci_readl(xhci, &xhci->op_regs->command); + temp = readl(&xhci->op_regs->command); temp |= (CMD_EIE); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Enable interrupts, cmd = 0x%x.", temp); xhci_writel(xhci, temp, &xhci->op_regs->command); - temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); + temp = readl(&xhci->ir_set->irq_pending); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Enabling event ring interrupter %p by writing 0x%x to irq_pending", xhci->ir_set, (unsigned int) ER_IRQ_ENABLE(temp)); @@ -698,9 +698,9 @@ void xhci_stop(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Disabling event ring interrupts"); - temp = xhci_readl(xhci, &xhci->op_regs->status); + temp = readl(&xhci->op_regs->status); xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); - temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); + temp = readl(&xhci->ir_set->irq_pending); xhci_writel(xhci, ER_IRQ_DISABLE(temp), &xhci->ir_set->irq_pending); xhci_print_ir_set(xhci, 0); @@ -709,7 +709,7 @@ void xhci_stop(struct usb_hcd *hcd) xhci_mem_cleanup(xhci); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_stop completed - status = %x", - xhci_readl(xhci, &xhci->op_regs->status)); + readl(&xhci->op_regs->status)); } /* @@ -739,7 +739,7 @@ void xhci_shutdown(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_shutdown completed - status = %x", - xhci_readl(xhci, &xhci->op_regs->status)); + readl(&xhci->op_regs->status)); /* Yet another workaround for spurious wakeups at shutdown with HSW */ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) @@ -749,15 +749,15 @@ void xhci_shutdown(struct usb_hcd *hcd) #ifdef CONFIG_PM static void xhci_save_registers(struct xhci_hcd *xhci) { - xhci->s3.command = xhci_readl(xhci, &xhci->op_regs->command); - xhci->s3.dev_nt = xhci_readl(xhci, &xhci->op_regs->dev_notification); + xhci->s3.command = readl(&xhci->op_regs->command); + xhci->s3.dev_nt = readl(&xhci->op_regs->dev_notification); xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); - xhci->s3.config_reg = xhci_readl(xhci, &xhci->op_regs->config_reg); - xhci->s3.erst_size = xhci_readl(xhci, &xhci->ir_set->erst_size); + xhci->s3.config_reg = readl(&xhci->op_regs->config_reg); + xhci->s3.erst_size = readl(&xhci->ir_set->erst_size); xhci->s3.erst_base = xhci_read_64(xhci, &xhci->ir_set->erst_base); xhci->s3.erst_dequeue = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); - xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); - xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control); + xhci->s3.irq_pending = readl(&xhci->ir_set->irq_pending); + xhci->s3.irq_control = readl(&xhci->ir_set->irq_control); } static void xhci_restore_registers(struct xhci_hcd *xhci) @@ -866,7 +866,7 @@ int xhci_suspend(struct xhci_hcd *xhci) /* skipped assuming that port suspend has done */ /* step 2: clear Run/Stop bit */ - command = xhci_readl(xhci, &xhci->op_regs->command); + command = readl(&xhci->op_regs->command); command &= ~CMD_RUN; xhci_writel(xhci, command, &xhci->op_regs->command); @@ -885,7 +885,7 @@ int xhci_suspend(struct xhci_hcd *xhci) xhci_save_registers(xhci); /* step 4: set CSS flag */ - command = xhci_readl(xhci, &xhci->op_regs->command); + command = readl(&xhci->op_regs->command); command |= CMD_CSS; xhci_writel(xhci, command, &xhci->op_regs->command); if (xhci_handshake(xhci, &xhci->op_regs->status, @@ -951,7 +951,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) xhci_set_cmd_ring_deq(xhci); /* step 3: restore state and start state*/ /* step 3: set CRS flag */ - command = xhci_readl(xhci, &xhci->op_regs->command); + command = readl(&xhci->op_regs->command); command |= CMD_CRS; xhci_writel(xhci, command, &xhci->op_regs->command); if (xhci_handshake(xhci, &xhci->op_regs->status, @@ -960,7 +960,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) spin_unlock_irq(&xhci->lock); return -ETIMEDOUT; } - temp = xhci_readl(xhci, &xhci->op_regs->status); + temp = readl(&xhci->op_regs->status); } /* If restore operation fails, re-initialize the HC during resume */ @@ -984,9 +984,9 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) xhci_cleanup_msix(xhci); xhci_dbg(xhci, "// Disabling event ring interrupts\n"); - temp = xhci_readl(xhci, &xhci->op_regs->status); + temp = readl(&xhci->op_regs->status); xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); - temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); + temp = readl(&xhci->ir_set->irq_pending); xhci_writel(xhci, ER_IRQ_DISABLE(temp), &xhci->ir_set->irq_pending); xhci_print_ir_set(xhci, 0); @@ -994,7 +994,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) xhci_dbg(xhci, "cleaning up memory\n"); xhci_mem_cleanup(xhci); xhci_dbg(xhci, "xhci_stop completed - status = %x\n", - xhci_readl(xhci, &xhci->op_regs->status)); + readl(&xhci->op_regs->status)); /* USB core calls the PCI reinit and start functions twice: * first with the primary HCD, and then with the secondary HCD. @@ -1023,7 +1023,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) } /* step 4: set Run/Stop bit */ - command = xhci_readl(xhci, &xhci->op_regs->command); + command = readl(&xhci->op_regs->command); command |= CMD_RUN; xhci_writel(xhci, command, &xhci->op_regs->command); xhci_handshake(xhci, &xhci->op_regs->status, STS_HALT, @@ -1464,7 +1464,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) ret = usb_hcd_check_unlink_urb(hcd, urb, status); if (ret || !urb->hcpriv) goto done; - temp = xhci_readl(xhci, &xhci->op_regs->status); + temp = readl(&xhci->op_regs->status); if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_HALTED)) { xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, "HW died, freeing TD."); @@ -3585,7 +3585,7 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) spin_lock_irqsave(&xhci->lock, flags); /* Don't disable the slot if the host controller is dead. */ - state = xhci_readl(xhci, &xhci->op_regs->status); + state = readl(&xhci->op_regs->status); if (state == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) || (xhci->xhc_state & XHCI_STATE_HALTED)) { xhci_free_virt_device(xhci, udev->slot_id); @@ -4042,7 +4042,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, port_array = xhci->usb2_ports; port_num = udev->portnum - 1; pm_addr = port_array[port_num] + PORTPMSC; - pm_val = xhci_readl(xhci, pm_addr); + pm_val = readl(pm_addr); hlpm_addr = port_array[port_num] + PORTHLPMC; field = le32_to_cpu(udev->bos->ext_cap->bmAttributes); @@ -4084,7 +4084,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, hlpm_val = xhci_calculate_usb2_hw_lpm_params(udev); xhci_writel(xhci, hlpm_val, hlpm_addr); /* flush write */ - xhci_readl(xhci, hlpm_addr); + readl(hlpm_addr); } else { hird = xhci_calculate_hird_besl(xhci, udev); } @@ -4092,16 +4092,16 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, pm_val &= ~PORT_HIRD_MASK; pm_val |= PORT_HIRD(hird) | PORT_RWE | PORT_L1DS(udev->slot_id); xhci_writel(xhci, pm_val, pm_addr); - pm_val = xhci_readl(xhci, pm_addr); + pm_val = readl(pm_addr); pm_val |= PORT_HLE; xhci_writel(xhci, pm_val, pm_addr); /* flush write */ - xhci_readl(xhci, pm_addr); + readl(pm_addr); } else { pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK | PORT_L1DS_MASK); xhci_writel(xhci, pm_val, pm_addr); /* flush write */ - xhci_readl(xhci, pm_addr); + readl(pm_addr); if (udev->usb2_hw_lpm_besl_capable) { spin_unlock_irqrestore(&xhci->lock, flags); mutex_lock(hcd->bandwidth_mutex); @@ -4704,7 +4704,7 @@ int xhci_get_frame(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); /* EHCI mods by the periodic size. Why? */ - return xhci_readl(xhci, &xhci->run_regs->microframe_index) >> 3; + return readl(&xhci->run_regs->microframe_index) >> 3; } int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) @@ -4748,16 +4748,16 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) xhci->cap_regs = hcd->regs; xhci->op_regs = hcd->regs + - HC_LENGTH(xhci_readl(xhci, &xhci->cap_regs->hc_capbase)); + HC_LENGTH(readl(&xhci->cap_regs->hc_capbase)); xhci->run_regs = hcd->regs + - (xhci_readl(xhci, &xhci->cap_regs->run_regs_off) & RTSOFF_MASK); + (readl(&xhci->cap_regs->run_regs_off) & RTSOFF_MASK); /* Cache read-only capability registers */ - xhci->hcs_params1 = xhci_readl(xhci, &xhci->cap_regs->hcs_params1); - xhci->hcs_params2 = xhci_readl(xhci, &xhci->cap_regs->hcs_params2); - xhci->hcs_params3 = xhci_readl(xhci, &xhci->cap_regs->hcs_params3); - xhci->hcc_params = xhci_readl(xhci, &xhci->cap_regs->hc_capbase); + xhci->hcs_params1 = readl(&xhci->cap_regs->hcs_params1); + xhci->hcs_params2 = readl(&xhci->cap_regs->hcs_params2); + xhci->hcs_params3 = readl(&xhci->cap_regs->hcs_params3); + xhci->hcc_params = readl(&xhci->cap_regs->hc_capbase); xhci->hci_version = HC_VERSION(xhci->hcc_params); - xhci->hcc_params = xhci_readl(xhci, &xhci->cap_regs->hcc_params); + xhci->hcc_params = readl(&xhci->cap_regs->hcc_params); xhci_print_registers(xhci); get_quirks(dev, xhci); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index a33e8b5..c727f1e 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1597,11 +1597,6 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) /* TODO: copied from ehci.h - can be refactored? */ /* xHCI spec says all registers are little endian */ -static inline unsigned int xhci_readl(const struct xhci_hcd *xhci, - __le32 __iomem *regs) -{ - return readl(regs); -} static inline void xhci_writel(struct xhci_hcd *xhci, const unsigned int val, __le32 __iomem *regs) { -- cgit v0.10.2 From 204b7793f2a9935e9a08524d0b4bb51b990d518e Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Fri, 15 Nov 2013 05:34:07 +0200 Subject: xhci: replace xhci_writel() with writel() Function xhci_writel() is used to write a 32bit value in xHC registers residing in MMIO address space. It takes as first argument a pointer to the xhci_hcd although it does not use it. xhci_writel() internally simply calls writel(). This creates an illusion that xhci_writel() is an xhci specific function that has to be called in a context where a pointer to xhci_hcd is available. Remove xhci_writel() wrapper function and replace its calls with calls to writel() to make the code more straight-forward. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 70ed7c9..9992fbf 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -342,7 +342,7 @@ static void xhci_disable_port(struct usb_hcd *hcd, struct xhci_hcd *xhci, } /* Write 1 to disable the port */ - xhci_writel(xhci, port_status | PORT_PE, addr); + writel(port_status | PORT_PE, addr); port_status = readl(addr); xhci_dbg(xhci, "disable port, actual port %d status = 0x%x\n", wIndex, port_status); @@ -388,7 +388,7 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue, return; } /* Change bits are all write 1 to clear */ - xhci_writel(xhci, port_status | status, addr); + writel(port_status | status, addr); port_status = readl(addr); xhci_dbg(xhci, "clear port %s change, actual port %d status = 0x%x\n", port_change_bit, wIndex, port_status); @@ -419,7 +419,7 @@ void xhci_set_link_state(struct xhci_hcd *xhci, __le32 __iomem **port_array, temp = xhci_port_state_to_neutral(temp); temp &= ~PORT_PLS_MASK; temp |= PORT_LINK_STROBE | link_state; - xhci_writel(xhci, temp, port_array[port_id]); + writel(temp, port_array[port_id]); } static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci, @@ -445,7 +445,7 @@ static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci, else temp &= ~PORT_WKOC_E; - xhci_writel(xhci, temp, port_array[port_id]); + writel(temp, port_array[port_id]); } /* Test and clear port RWC bit */ @@ -458,7 +458,7 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, if (temp & port_bit) { temp = xhci_port_state_to_neutral(temp); temp |= port_bit; - xhci_writel(xhci, temp, port_array[port_id]); + writel(temp, port_array[port_id]); } } @@ -838,8 +838,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp |= PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | PORT_RC | PORT_PLC | PORT_CEC; - xhci_writel(xhci, temp | PORT_PE, - port_array[wIndex]); + writel(temp | PORT_PE, port_array[wIndex]); temp = readl(port_array[wIndex]); break; } @@ -894,8 +893,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, * However, khubd will ignore the roothub events until * the roothub is registered. */ - xhci_writel(xhci, temp | PORT_POWER, - port_array[wIndex]); + writel(temp | PORT_POWER, port_array[wIndex]); temp = readl(port_array[wIndex]); xhci_dbg(xhci, "set port power, actual port %d status = 0x%x\n", wIndex, temp); @@ -910,7 +908,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case USB_PORT_FEAT_RESET: temp = (temp | PORT_RESET); - xhci_writel(xhci, temp, port_array[wIndex]); + writel(temp, port_array[wIndex]); temp = readl(port_array[wIndex]); xhci_dbg(xhci, "set port reset, actual port %d status = 0x%x\n", wIndex, temp); @@ -925,7 +923,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case USB_PORT_FEAT_BH_PORT_RESET: temp |= PORT_WR; - xhci_writel(xhci, temp, port_array[wIndex]); + writel(temp, port_array[wIndex]); temp = readl(port_array[wIndex]); break; @@ -935,7 +933,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = readl(port_array[wIndex] + PORTPMSC); temp &= ~PORT_U1_TIMEOUT_MASK; temp |= PORT_U1_TIMEOUT(timeout); - xhci_writel(xhci, temp, port_array[wIndex] + PORTPMSC); + writel(temp, port_array[wIndex] + PORTPMSC); break; case USB_PORT_FEAT_U2_TIMEOUT: if (hcd->speed != HCD_USB3) @@ -943,7 +941,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, temp = readl(port_array[wIndex] + PORTPMSC); temp &= ~PORT_U2_TIMEOUT_MASK; temp |= PORT_U2_TIMEOUT(timeout); - xhci_writel(xhci, temp, port_array[wIndex] + PORTPMSC); + writel(temp, port_array[wIndex] + PORTPMSC); break; default: goto error; @@ -1007,8 +1005,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, port_array[wIndex], temp); break; case USB_PORT_FEAT_POWER: - xhci_writel(xhci, temp & ~PORT_POWER, - port_array[wIndex]); + writel(temp & ~PORT_POWER, port_array[wIndex]); spin_unlock_irqrestore(&xhci->lock, flags); temp = usb_acpi_power_manageable(hcd->self.root_hub, @@ -1156,7 +1153,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd) t1 = xhci_port_state_to_neutral(t1); if (t1 != t2) - xhci_writel(xhci, t2, port_array[port_index]); + writel(t2, port_array[port_index]); } hcd->state = HC_STATE_SUSPENDED; bus_state->next_statechange = jiffies + msecs_to_jiffies(10); @@ -1188,7 +1185,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) /* delay the irqs */ temp = readl(&xhci->op_regs->command); temp &= ~CMD_EIE; - xhci_writel(xhci, temp, &xhci->op_regs->command); + writel(temp, &xhci->op_regs->command); port_index = max_ports; while (port_index--) { @@ -1234,7 +1231,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) if (slot_id) xhci_ring_device(xhci, slot_id); } else - xhci_writel(xhci, temp, port_array[port_index]); + writel(temp, port_array[port_index]); } (void) readl(&xhci->op_regs->command); @@ -1243,7 +1240,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) /* re-enable irqs */ temp = readl(&xhci->op_regs->command); temp |= CMD_EIE; - xhci_writel(xhci, temp, &xhci->op_regs->command); + writel(temp, &xhci->op_regs->command); temp = readl(&xhci->op_regs->command); spin_unlock_irqrestore(&xhci->lock, flags); diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 3682a3b..bce4391 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2254,7 +2254,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) val |= (val2 & ~HCS_SLOTS_MASK); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Setting Max device slots reg = 0x%x.", val); - xhci_writel(xhci, val, &xhci->op_regs->config_reg); + writel(val, &xhci->op_regs->config_reg); /* * Section 5.4.8 - doorbell array must be @@ -2388,7 +2388,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Write ERST size = %i to ir_set 0 (some bits preserved)", val); - xhci_writel(xhci, val, &xhci->ir_set->erst_size); + writel(val, &xhci->ir_set->erst_size); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Set ERST entries to point to event ring."); @@ -2434,7 +2434,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) temp = readl(&xhci->op_regs->dev_notification); temp &= ~DEV_NOTE_MASK; temp |= DEV_NOTE_FWAKE; - xhci_writel(xhci, temp, &xhci->op_regs->dev_notification); + writel(temp, &xhci->op_regs->dev_notification); return 0; diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 9f2349b..bc46cce 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -295,7 +295,7 @@ void xhci_ring_cmd_db(struct xhci_hcd *xhci) return; xhci_dbg(xhci, "// Ding dong!\n"); - xhci_writel(xhci, DB_VALUE_HOST, &xhci->dba->doorbell[0]); + writel(DB_VALUE_HOST, &xhci->dba->doorbell[0]); /* Flush PCI posted writes */ readl(&xhci->dba->doorbell[0]); } @@ -427,7 +427,7 @@ void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, if ((ep_state & EP_HALT_PENDING) || (ep_state & SET_DEQ_PENDING) || (ep_state & EP_HALTED)) return; - xhci_writel(xhci, DB_VALUE(ep_index, stream_id), db_addr); + writel(DB_VALUE(ep_index, stream_id), db_addr); /* The CPU has better things to do at this point than wait for a * write-posting flush. It'll get there soon enough. */ @@ -2853,7 +2853,7 @@ hw_died: * Write 1 to clear the interrupt status. */ status |= STS_EINT; - xhci_writel(xhci, status, &xhci->op_regs->status); + writel(status, &xhci->op_regs->status); /* FIXME when MSI-X is supported and there are multiple vectors */ /* Clear the MSI-X event interrupt status */ @@ -2862,7 +2862,7 @@ hw_died: /* Acknowledge the PCI interrupt */ irq_pending = readl(&xhci->ir_set->irq_pending); irq_pending |= IMAN_IP; - xhci_writel(xhci, irq_pending, &xhci->ir_set->irq_pending); + writel(irq_pending, &xhci->ir_set->irq_pending); } if (xhci->xhc_state & XHCI_STATE_DYING) { diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 5e6a865..7630b9f 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -88,7 +88,7 @@ void xhci_quiesce(struct xhci_hcd *xhci) cmd = readl(&xhci->op_regs->command); cmd &= mask; - xhci_writel(xhci, cmd, &xhci->op_regs->command); + writel(cmd, &xhci->op_regs->command); } /* @@ -128,7 +128,7 @@ static int xhci_start(struct xhci_hcd *xhci) temp |= (CMD_RUN); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Turn on HC, cmd = 0x%x.", temp); - xhci_writel(xhci, temp, &xhci->op_regs->command); + writel(temp, &xhci->op_regs->command); /* * Wait for the HCHalted Status bit to be 0 to indicate the host is @@ -167,7 +167,7 @@ int xhci_reset(struct xhci_hcd *xhci) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Reset the HC"); command = readl(&xhci->op_regs->command); command |= CMD_RESET; - xhci_writel(xhci, command, &xhci->op_regs->command); + writel(command, &xhci->op_regs->command); ret = xhci_handshake(xhci, &xhci->op_regs->command, CMD_RESET, 0, 10 * 1000 * 1000); @@ -614,21 +614,20 @@ int xhci_run(struct usb_hcd *hcd) temp = readl(&xhci->ir_set->irq_control); temp &= ~ER_IRQ_INTERVAL_MASK; temp |= (u32) 160; - xhci_writel(xhci, temp, &xhci->ir_set->irq_control); + writel(temp, &xhci->ir_set->irq_control); /* Set the HCD state before we enable the irqs */ temp = readl(&xhci->op_regs->command); temp |= (CMD_EIE); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Enable interrupts, cmd = 0x%x.", temp); - xhci_writel(xhci, temp, &xhci->op_regs->command); + writel(temp, &xhci->op_regs->command); temp = readl(&xhci->ir_set->irq_pending); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Enabling event ring interrupter %p by writing 0x%x to irq_pending", xhci->ir_set, (unsigned int) ER_IRQ_ENABLE(temp)); - xhci_writel(xhci, ER_IRQ_ENABLE(temp), - &xhci->ir_set->irq_pending); + writel(ER_IRQ_ENABLE(temp), &xhci->ir_set->irq_pending); xhci_print_ir_set(xhci, 0); if (xhci->quirks & XHCI_NEC_HOST) @@ -699,10 +698,9 @@ void xhci_stop(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Disabling event ring interrupts"); temp = readl(&xhci->op_regs->status); - xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); + writel(temp & ~STS_EINT, &xhci->op_regs->status); temp = readl(&xhci->ir_set->irq_pending); - xhci_writel(xhci, ER_IRQ_DISABLE(temp), - &xhci->ir_set->irq_pending); + writel(ER_IRQ_DISABLE(temp), &xhci->ir_set->irq_pending); xhci_print_ir_set(xhci, 0); xhci_dbg_trace(xhci, trace_xhci_dbg_init, "cleaning up memory"); @@ -762,15 +760,15 @@ static void xhci_save_registers(struct xhci_hcd *xhci) static void xhci_restore_registers(struct xhci_hcd *xhci) { - xhci_writel(xhci, xhci->s3.command, &xhci->op_regs->command); - xhci_writel(xhci, xhci->s3.dev_nt, &xhci->op_regs->dev_notification); + writel(xhci->s3.command, &xhci->op_regs->command); + writel(xhci->s3.dev_nt, &xhci->op_regs->dev_notification); xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); - xhci_writel(xhci, xhci->s3.config_reg, &xhci->op_regs->config_reg); - xhci_writel(xhci, xhci->s3.erst_size, &xhci->ir_set->erst_size); + writel(xhci->s3.config_reg, &xhci->op_regs->config_reg); + writel(xhci->s3.erst_size, &xhci->ir_set->erst_size); xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base); xhci_write_64(xhci, xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue); - xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending); - xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); + writel(xhci->s3.irq_pending, &xhci->ir_set->irq_pending); + writel(xhci->s3.irq_control, &xhci->ir_set->irq_control); } static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) @@ -868,7 +866,7 @@ int xhci_suspend(struct xhci_hcd *xhci) /* step 2: clear Run/Stop bit */ command = readl(&xhci->op_regs->command); command &= ~CMD_RUN; - xhci_writel(xhci, command, &xhci->op_regs->command); + writel(command, &xhci->op_regs->command); /* Some chips from Fresco Logic need an extraordinary delay */ delay *= (xhci->quirks & XHCI_SLOW_SUSPEND) ? 10 : 1; @@ -887,7 +885,7 @@ int xhci_suspend(struct xhci_hcd *xhci) /* step 4: set CSS flag */ command = readl(&xhci->op_regs->command); command |= CMD_CSS; - xhci_writel(xhci, command, &xhci->op_regs->command); + writel(command, &xhci->op_regs->command); if (xhci_handshake(xhci, &xhci->op_regs->status, STS_SAVE, 0, 10 * 1000)) { xhci_warn(xhci, "WARN: xHC save state timeout\n"); @@ -953,7 +951,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) /* step 3: set CRS flag */ command = readl(&xhci->op_regs->command); command |= CMD_CRS; - xhci_writel(xhci, command, &xhci->op_regs->command); + writel(command, &xhci->op_regs->command); if (xhci_handshake(xhci, &xhci->op_regs->status, STS_RESTORE, 0, 10 * 1000)) { xhci_warn(xhci, "WARN: xHC restore state timeout\n"); @@ -985,10 +983,9 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) xhci_dbg(xhci, "// Disabling event ring interrupts\n"); temp = readl(&xhci->op_regs->status); - xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); + writel(temp & ~STS_EINT, &xhci->op_regs->status); temp = readl(&xhci->ir_set->irq_pending); - xhci_writel(xhci, ER_IRQ_DISABLE(temp), - &xhci->ir_set->irq_pending); + writel(ER_IRQ_DISABLE(temp), &xhci->ir_set->irq_pending); xhci_print_ir_set(xhci, 0); xhci_dbg(xhci, "cleaning up memory\n"); @@ -1025,7 +1022,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) /* step 4: set Run/Stop bit */ command = readl(&xhci->op_regs->command); command |= CMD_RUN; - xhci_writel(xhci, command, &xhci->op_regs->command); + writel(command, &xhci->op_regs->command); xhci_handshake(xhci, &xhci->op_regs->status, STS_HALT, 0, 250 * 1000); @@ -4082,7 +4079,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, spin_lock_irqsave(&xhci->lock, flags); hlpm_val = xhci_calculate_usb2_hw_lpm_params(udev); - xhci_writel(xhci, hlpm_val, hlpm_addr); + writel(hlpm_val, hlpm_addr); /* flush write */ readl(hlpm_addr); } else { @@ -4091,15 +4088,15 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, pm_val &= ~PORT_HIRD_MASK; pm_val |= PORT_HIRD(hird) | PORT_RWE | PORT_L1DS(udev->slot_id); - xhci_writel(xhci, pm_val, pm_addr); + writel(pm_val, pm_addr); pm_val = readl(pm_addr); pm_val |= PORT_HLE; - xhci_writel(xhci, pm_val, pm_addr); + writel(pm_val, pm_addr); /* flush write */ readl(pm_addr); } else { pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK | PORT_L1DS_MASK); - xhci_writel(xhci, pm_val, pm_addr); + writel(pm_val, pm_addr); /* flush write */ readl(pm_addr); if (udev->usb2_hw_lpm_besl_capable) { diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index c727f1e..402d874 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1595,14 +1595,6 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) #define xhci_warn_ratelimited(xhci, fmt, args...) \ dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args) -/* TODO: copied from ehci.h - can be refactored? */ -/* xHCI spec says all registers are little endian */ -static inline void xhci_writel(struct xhci_hcd *xhci, - const unsigned int val, __le32 __iomem *regs) -{ - writel(val, regs); -} - /* * Registers should always be accessed with double word or quad word accesses. * -- cgit v0.10.2 From e8b373326d8efcaf9ec1da8b618556c89bd5ffc4 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Fri, 15 Nov 2013 05:34:08 +0200 Subject: xhci: replace xhci_read_64() with readq() Function xhci_read_64() is used to read 64bit xHC registers residing in MMIO. On 32bit systems, xHC registers need to be read with 32bit accesses by reading first the lower 32bits and then the higher 32bits. Replace all calls to xhci_read_64() with calls to readq() and include asm-generic/io-64-nonatomic-lo-hi.h header file, so that if the system is not 64bit, readq() will read registers in 32bit chunks with low-high order. This is done to reduce code duplication since 64bit low-high read logic is already implemented and to take advantage of inherent "atomic" 64bit read operations on 64bit systems. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index eb009a4..b016d38 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -203,12 +203,12 @@ void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num) addr, (unsigned int)temp); addr = &ir_set->erst_base; - temp_64 = xhci_read_64(xhci, addr); + temp_64 = readq(addr); xhci_dbg(xhci, " %p: ir_set.erst_base = @%08llx\n", addr, temp_64); addr = &ir_set->erst_dequeue; - temp_64 = xhci_read_64(xhci, addr); + temp_64 = readq(addr); xhci_dbg(xhci, " %p: ir_set.erst_dequeue = @%08llx\n", addr, temp_64); } @@ -412,7 +412,7 @@ void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci) { u64 val; - val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); + val = readq(&xhci->op_regs->cmd_ring); xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = @%08x\n", lower_32_bits(val)); xhci_dbg(xhci, "// xHC command ring deq ptr high bits = @%08x\n", diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index bce4391..4b87026 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1958,7 +1958,7 @@ static void xhci_set_hc_event_deq(struct xhci_hcd *xhci) xhci_warn(xhci, "WARN something wrong with SW event ring " "dequeue ptr.\n"); /* Update HC event ring dequeue pointer */ - temp = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + temp = readq(&xhci->ir_set->erst_dequeue); temp &= ERST_PTR_MASK; /* Don't clear the EHB bit (which is RW1C) because * there might be more events to service. @@ -2312,7 +2312,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) (unsigned long long)xhci->cmd_ring->first_seg->dma); /* Set the address in the Command Ring Control register */ - val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); + val_64 = readq(&xhci->op_regs->cmd_ring); val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) | (xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) | xhci->cmd_ring->cycle_state; @@ -2396,7 +2396,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Set ERST base address for ir_set 0 = 0x%llx", (unsigned long long)xhci->erst.erst_dma_addr); - val_64 = xhci_read_64(xhci, &xhci->ir_set->erst_base); + val_64 = readq(&xhci->ir_set->erst_base); val_64 &= ERST_PTR_MASK; val_64 |= (xhci->erst.erst_dma_addr & (u64) ~ERST_PTR_MASK); xhci_write_64(xhci, val_64, &xhci->ir_set->erst_base); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index bc46cce..339733b 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -313,7 +313,7 @@ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci) return 0; } - temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); + temp_64 = readq(&xhci->op_regs->cmd_ring); if (!(temp_64 & CMD_RING_RUNNING)) { xhci_dbg(xhci, "Command ring had been stopped\n"); return 0; @@ -2871,7 +2871,7 @@ hw_died: /* Clear the event handler busy flag (RW1C); * the event ring should be empty. */ - temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + temp_64 = readq(&xhci->ir_set->erst_dequeue); xhci_write_64(xhci, temp_64 | ERST_EHB, &xhci->ir_set->erst_dequeue); spin_unlock(&xhci->lock); @@ -2885,7 +2885,7 @@ hw_died: */ while (xhci_handle_event(xhci) > 0) {} - temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + temp_64 = readq(&xhci->ir_set->erst_dequeue); /* If necessary, update the HW's version of the event ring deq ptr. */ if (event_ring_deq != xhci->event_ring->dequeue) { deq = xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7630b9f..858e992 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -604,7 +604,7 @@ int xhci_run(struct usb_hcd *hcd) xhci_dbg(xhci, "Event ring:\n"); xhci_debug_ring(xhci, xhci->event_ring); xhci_dbg_ring_ptrs(xhci, xhci->event_ring); - temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + temp_64 = readq(&xhci->ir_set->erst_dequeue); temp_64 &= ~ERST_PTR_MASK; xhci_dbg_trace(xhci, trace_xhci_dbg_init, "ERST deq = 64'h%0lx", (long unsigned int) temp_64); @@ -749,11 +749,11 @@ static void xhci_save_registers(struct xhci_hcd *xhci) { xhci->s3.command = readl(&xhci->op_regs->command); xhci->s3.dev_nt = readl(&xhci->op_regs->dev_notification); - xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); + xhci->s3.dcbaa_ptr = readq(&xhci->op_regs->dcbaa_ptr); xhci->s3.config_reg = readl(&xhci->op_regs->config_reg); xhci->s3.erst_size = readl(&xhci->ir_set->erst_size); - xhci->s3.erst_base = xhci_read_64(xhci, &xhci->ir_set->erst_base); - xhci->s3.erst_dequeue = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + xhci->s3.erst_base = readq(&xhci->ir_set->erst_base); + xhci->s3.erst_dequeue = readq(&xhci->ir_set->erst_dequeue); xhci->s3.irq_pending = readl(&xhci->ir_set->irq_pending); xhci->s3.irq_control = readl(&xhci->ir_set->irq_control); } @@ -776,7 +776,7 @@ static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) u64 val_64; /* step 2: initialize command ring buffer */ - val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); + val_64 = readq(&xhci->op_regs->cmd_ring); val_64 = (val_64 & (u64) CMD_RING_RSVD_BITS) | (xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, xhci->cmd_ring->dequeue) & @@ -3832,7 +3832,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) if (ret) { return ret; } - temp_64 = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); + temp_64 = readq(&xhci->op_regs->dcbaa_ptr); xhci_dbg_trace(xhci, trace_xhci_dbg_address, "Op regs DCBAA ptr = %#016llx", temp_64); xhci_dbg_trace(xhci, trace_xhci_dbg_address, diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 402d874..5579b443 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -28,6 +28,8 @@ #include #include +#include + /* Code sharing between pci-quirks and xhci hcd */ #include "xhci-ext-caps.h" #include "pci-quirks.h" @@ -1604,14 +1606,6 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) * xHCI implementations that do not support 64-bit address pointers will ignore * the high dword, and write order is irrelevant. */ -static inline u64 xhci_read_64(const struct xhci_hcd *xhci, - __le64 __iomem *regs) -{ - __u32 __iomem *ptr = (__u32 __iomem *) regs; - u64 val_lo = readl(ptr); - u64 val_hi = readl(ptr + 1); - return val_lo + (val_hi << 32); -} static inline void xhci_write_64(struct xhci_hcd *xhci, const u64 val, __le64 __iomem *regs) { -- cgit v0.10.2 From 7dd09a1af2c7150269350aaa567a11b06e831003 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Fri, 15 Nov 2013 05:34:09 +0200 Subject: xhci: replace xhci_write_64() with writeq() Function xhci_write_64() is used to write 64bit xHC registers residing in MMIO. On 32bit systems, xHC registers need to be written with 32bit accesses by writing first the lower 32bits and then the higher 32bits. The header file asm-generic/io-64-nonatomic-lo-hi.h ensures that on 32bit systems writeq() will will write 64bit registers in 32bit chunks with low-high order. Replace all calls to xhci_write_64() with calls to writeq(). This is done to reduce code duplication since 64bit low-high write logic is already implemented and to take advantage of inherent "atomic" 64bit write operations on 64bit systems. Signed-off-by: Xenia Ragiadakou Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 4b87026..873c272 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1967,7 +1967,7 @@ static void xhci_set_hc_event_deq(struct xhci_hcd *xhci) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Write event ring dequeue pointer, " "preserving EHB bit"); - xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK) | temp, + writeq(((u64) deq & (u64) ~ERST_PTR_MASK) | temp, &xhci->ir_set->erst_dequeue); } @@ -2269,7 +2269,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Device context base array address = 0x%llx (DMA), %p (virt)", (unsigned long long)xhci->dcbaa->dma, xhci->dcbaa); - xhci_write_64(xhci, dma, &xhci->op_regs->dcbaa_ptr); + writeq(dma, &xhci->op_regs->dcbaa_ptr); /* * Initialize the ring segment pool. The ring must be a contiguous @@ -2318,7 +2318,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) xhci->cmd_ring->cycle_state; xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Setting command ring address to 0x%x", val); - xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); + writeq(val_64, &xhci->op_regs->cmd_ring); xhci_dbg_cmd_ptrs(xhci); xhci->lpm_command = xhci_alloc_command(xhci, true, true, flags); @@ -2399,7 +2399,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) val_64 = readq(&xhci->ir_set->erst_base); val_64 &= ERST_PTR_MASK; val_64 |= (xhci->erst.erst_dma_addr & (u64) ~ERST_PTR_MASK); - xhci_write_64(xhci, val_64, &xhci->ir_set->erst_base); + writeq(val_64, &xhci->ir_set->erst_base); /* Set the event ring dequeue address */ xhci_set_hc_event_deq(xhci); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 339733b..fe9208a 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -319,8 +319,7 @@ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci) return 0; } xhci->cmd_ring_state = CMD_RING_STATE_ABORTED; - xhci_write_64(xhci, temp_64 | CMD_RING_ABORT, - &xhci->op_regs->cmd_ring); + writeq(temp_64 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring); /* Section 4.6.1.2 of xHCI 1.0 spec says software should * time the completion od all xHCI commands, including @@ -2872,8 +2871,7 @@ hw_died: * the event ring should be empty. */ temp_64 = readq(&xhci->ir_set->erst_dequeue); - xhci_write_64(xhci, temp_64 | ERST_EHB, - &xhci->ir_set->erst_dequeue); + writeq(temp_64 | ERST_EHB, &xhci->ir_set->erst_dequeue); spin_unlock(&xhci->lock); return IRQ_HANDLED; @@ -2900,7 +2898,7 @@ hw_died: /* Clear the event handler busy flag (RW1C); event ring is empty. */ temp_64 |= ERST_EHB; - xhci_write_64(xhci, temp_64, &xhci->ir_set->erst_dequeue); + writeq(temp_64, &xhci->ir_set->erst_dequeue); spin_unlock(&xhci->lock); diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 858e992..7fe6f66 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -762,11 +762,11 @@ static void xhci_restore_registers(struct xhci_hcd *xhci) { writel(xhci->s3.command, &xhci->op_regs->command); writel(xhci->s3.dev_nt, &xhci->op_regs->dev_notification); - xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); + writeq(xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); writel(xhci->s3.config_reg, &xhci->op_regs->config_reg); writel(xhci->s3.erst_size, &xhci->ir_set->erst_size); - xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base); - xhci_write_64(xhci, xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue); + writeq(xhci->s3.erst_base, &xhci->ir_set->erst_base); + writeq(xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue); writel(xhci->s3.irq_pending, &xhci->ir_set->irq_pending); writel(xhci->s3.irq_control, &xhci->ir_set->irq_control); } @@ -785,7 +785,7 @@ static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Setting command ring address to 0x%llx", (long unsigned long) val_64); - xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); + writeq(val_64, &xhci->op_regs->cmd_ring); } /* diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 5579b443..7807f62 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -28,6 +28,15 @@ #include #include +/* + * Registers should always be accessed with double word or quad word accesses. + * + * Some xHCI implementations may support 64-bit address pointers. Registers + * with 64-bit address pointers should be written to with dword accesses by + * writing the low dword first (ptr[0]), then the high dword (ptr[1]) second. + * xHCI implementations that do not support 64-bit address pointers will ignore + * the high dword, and write order is irrelevant. + */ #include /* Code sharing between pci-quirks and xhci hcd */ @@ -1597,26 +1606,6 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) #define xhci_warn_ratelimited(xhci, fmt, args...) \ dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args) -/* - * Registers should always be accessed with double word or quad word accesses. - * - * Some xHCI implementations may support 64-bit address pointers. Registers - * with 64-bit address pointers should be written to with dword accesses by - * writing the low dword first (ptr[0]), then the high dword (ptr[1]) second. - * xHCI implementations that do not support 64-bit address pointers will ignore - * the high dword, and write order is irrelevant. - */ -static inline void xhci_write_64(struct xhci_hcd *xhci, - const u64 val, __le64 __iomem *regs) -{ - __u32 __iomem *ptr = (__u32 __iomem *) regs; - u32 val_lo = lower_32_bits(val); - u32 val_hi = upper_32_bits(val); - - writel(val_lo, ptr); - writel(val_hi, ptr + 1); -} - static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci) { return xhci->quirks & XHCI_LINK_TRB_QUIRK; -- cgit v0.10.2 From 46adcf3d82b44a4a9f147b2b898595d48873aa53 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 8 Nov 2013 01:09:47 -0200 Subject: usb: chipidea: host: Only disable the vbus regulator if it is not NULL Commit 40ed51a4b (usb: chipidea: host: add vbus regulator control) introduced a smatch complaint because regulator_disable() is called without checking whether ci->platdata->reg_vbus is not NULL. Fix this by adding the check. Reported-by: Dan Carpenter Signed-off-by: Fabio Estevam Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 59e6020..526cd77 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -88,7 +88,8 @@ static int host_start(struct ci_hdrc *ci) return ret; disable_reg: - regulator_disable(ci->platdata->reg_vbus); + if (ci->platdata->reg_vbus) + regulator_disable(ci->platdata->reg_vbus); put_hcd: usb_put_hcd(hcd); -- cgit v0.10.2 From 4e065b8bba731af296f963e0608e6ea7d98c044f Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 28 Nov 2013 14:15:26 +0900 Subject: usb: chipidea: remove DEFINE_PCI_DEVICE_TABLE macro Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci_hdrc_pci.c b/drivers/usb/chipidea/ci_hdrc_pci.c index d514332..241ae34 100644 --- a/drivers/usb/chipidea/ci_hdrc_pci.c +++ b/drivers/usb/chipidea/ci_hdrc_pci.c @@ -112,7 +112,7 @@ static void ci_hdrc_pci_remove(struct pci_dev *pdev) * * Check "pci.h" for details */ -static DEFINE_PCI_DEVICE_TABLE(ci_hdrc_pci_id_table) = { +static const struct pci_device_id ci_hdrc_pci_id_table[] = { { PCI_DEVICE(0x153F, 0x1004), .driver_data = (kernel_ulong_t)&pci_platdata, -- cgit v0.10.2 From 5a6a62bdb9257aa74ab0ad2b2c8a33b0f9b17ce4 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 20 Nov 2013 11:35:34 +0100 Subject: cdc-acm: add TIOCMIWAIT This implements TIOCMIWAIT for TIOCM_DSR, TIOCM_RI and TIOCM_CD Disconnect is handled as TIOCM_CD or an error. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 3e7560f..7c00517 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -262,6 +262,7 @@ static void acm_ctrl_irq(struct urb *urb) struct usb_cdc_notification *dr = urb->transfer_buffer; unsigned char *data; int newctrl; + int difference; int retval; int status = urb->status; @@ -302,20 +303,31 @@ static void acm_ctrl_irq(struct urb *urb) tty_port_tty_hangup(&acm->port, false); } + difference = acm->ctrlin ^ newctrl; + spin_lock(&acm->read_lock); acm->ctrlin = newctrl; + acm->oldcount = acm->iocount; + + if (difference & ACM_CTRL_DSR) + acm->iocount.dsr++; + if (difference & ACM_CTRL_BRK) + acm->iocount.brk++; + if (difference & ACM_CTRL_RI) + acm->iocount.rng++; + if (difference & ACM_CTRL_DCD) + acm->iocount.dcd++; + if (difference & ACM_CTRL_FRAMING) + acm->iocount.frame++; + if (difference & ACM_CTRL_PARITY) + acm->iocount.parity++; + if (difference & ACM_CTRL_OVERRUN) + acm->iocount.overrun++; + spin_unlock(&acm->read_lock); + + if (difference) + wake_up_all(&acm->wioctl); - dev_dbg(&acm->control->dev, - "%s - input control lines: dcd%c dsr%c break%c " - "ring%c framing%c parity%c overrun%c\n", - __func__, - acm->ctrlin & ACM_CTRL_DCD ? '+' : '-', - acm->ctrlin & ACM_CTRL_DSR ? '+' : '-', - acm->ctrlin & ACM_CTRL_BRK ? '+' : '-', - acm->ctrlin & ACM_CTRL_RI ? '+' : '-', - acm->ctrlin & ACM_CTRL_FRAMING ? '+' : '-', - acm->ctrlin & ACM_CTRL_PARITY ? '+' : '-', - acm->ctrlin & ACM_CTRL_OVERRUN ? '+' : '-'); - break; + break; default: dev_dbg(&acm->control->dev, @@ -796,6 +808,51 @@ static int set_serial_info(struct acm *acm, return retval; } +static int wait_serial_change(struct acm *acm, unsigned long arg) +{ + int rv = 0; + DECLARE_WAITQUEUE(wait, current); + struct async_icount old, new; + + if (arg & (TIOCM_DSR | TIOCM_RI | TIOCM_CD )) + return -EINVAL; + do { + spin_lock_irq(&acm->read_lock); + old = acm->oldcount; + new = acm->iocount; + acm->oldcount = new; + spin_unlock_irq(&acm->read_lock); + + if ((arg & TIOCM_DSR) && + old.dsr != new.dsr) + break; + if ((arg & TIOCM_CD) && + old.dcd != new.dcd) + break; + if ((arg & TIOCM_RI) && + old.rng != new.rng) + break; + + add_wait_queue(&acm->wioctl, &wait); + set_current_state(TASK_INTERRUPTIBLE); + schedule(); + remove_wait_queue(&acm->wioctl, &wait); + if (acm->disconnected) { + if (arg & TIOCM_CD) + break; + else + rv = -ENODEV; + } else { + if (signal_pending(current)) + rv = -ERESTARTSYS; + } + } while (!rv); + + + + return rv; +} + static int acm_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { @@ -809,6 +866,9 @@ static int acm_tty_ioctl(struct tty_struct *tty, case TIOCSSERIAL: rv = set_serial_info(acm, (struct serial_struct __user *) arg); break; + case TIOCMIWAIT: + rv = wait_serial_change(acm, arg); + break; } return rv; @@ -1167,6 +1227,7 @@ made_compressed_probe: acm->readsize = readsize; acm->rx_buflimit = num_rx_buf; INIT_WORK(&acm->work, acm_softint); + init_waitqueue_head(&acm->wioctl); spin_lock_init(&acm->write_lock); spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); @@ -1383,6 +1444,7 @@ static void acm_disconnect(struct usb_interface *intf) device_remove_file(&acm->control->dev, &dev_attr_iCountryCodeRelDate); } + wake_up_all(&acm->wioctl); device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); usb_set_intfdata(acm->control, NULL); usb_set_intfdata(acm->data, NULL); diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 0f76e4a..e38dc78 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -106,6 +106,9 @@ struct acm { struct work_struct work; /* work queue entry for line discipline waking up */ unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ unsigned int ctrlout; /* output control lines (DTR, RTS) */ + struct async_icount iocount; /* counters for control line changes */ + struct async_icount oldcount; /* for comparison of counter */ + wait_queue_head_t wioctl; /* for ioctl */ unsigned int writesize; /* max packet size for the output bulk endpoint */ unsigned int readsize,ctrlsize; /* buffer sizes for freeing */ unsigned int minor; /* acm minor number */ -- cgit v0.10.2 From 797ef13716ce05d26c5be12893ca75b2b003f25f Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 20 Nov 2013 11:35:35 +0100 Subject: cdc-acm: add TIOCGICOUNT Simple straightforward implementation. Just returning the statistics gathered for TIOCMIWAIT Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 7c00517..92e28ec 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -853,6 +853,27 @@ static int wait_serial_change(struct acm *acm, unsigned long arg) return rv; } +static int get_serial_usage(struct acm *acm, + struct serial_icounter_struct __user *count) +{ + struct serial_icounter_struct icount; + int rv = 0; + + memset(&icount, 0, sizeof(icount)); + icount.dsr = acm->iocount.dsr; + icount.rng = acm->iocount.rng; + icount.dcd = acm->iocount.dcd; + icount.frame = acm->iocount.frame; + icount.overrun = acm->iocount.overrun; + icount.parity = acm->iocount.parity; + icount.brk = acm->iocount.brk; + + if (copy_to_user(count, &icount, sizeof(icount)) > 0) + rv = -EFAULT; + + return rv; +} + static int acm_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { @@ -869,6 +890,9 @@ static int acm_tty_ioctl(struct tty_struct *tty, case TIOCMIWAIT: rv = wait_serial_change(acm, arg); break; + case TIOCGICOUNT: + rv = get_serial_usage(acm, (struct serial_icounter_struct __user *) arg); + break; } return rv; -- cgit v0.10.2 From 8fdbeb26b5105282e55559b54a660fe7b6eed331 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 20 Nov 2013 11:35:36 +0100 Subject: cdc-acm: fix power management in ioctl An ioctl that does depends on communication with a device should prevent suspension of teh device. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 92e28ec..8fe32eb 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -888,7 +888,13 @@ static int acm_tty_ioctl(struct tty_struct *tty, rv = set_serial_info(acm, (struct serial_struct __user *) arg); break; case TIOCMIWAIT: + rv = usb_autopm_get_interface(acm->control); + if (rv < 0) { + rv = -EIO; + break; + } rv = wait_serial_change(acm, arg); + usb_autopm_put_interface(acm->control); break; case TIOCGICOUNT: rv = get_serial_usage(acm, (struct serial_icounter_struct __user *) arg); -- cgit v0.10.2 From 5c2a18014f906d81ae83484801831650f0fa07fe Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:22:57 +0100 Subject: ohci: remove conditional compilation Conditional compilation for debugging is removed in favor of dynamic debugging. To do so 1. the support for debugfs is always compiled 2. the support for the ancient print_urb debugging aid is removed Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 3fca52e..45032e9 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -9,8 +9,6 @@ /*-------------------------------------------------------------------------*/ -#ifdef DEBUG - #define edstring(ed_type) ({ char *temp; \ switch (ed_type) { \ case PIPE_CONTROL: temp = "ctrl"; break; \ @@ -20,57 +18,6 @@ } temp;}) #define pipestring(pipe) edstring(usb_pipetype(pipe)) -/* debug| print the main components of an URB - * small: 0) header + data packets 1) just header - */ -static void __maybe_unused -urb_print(struct urb * urb, char * str, int small, int status) -{ - unsigned int pipe= urb->pipe; - - if (!urb->dev || !urb->dev->bus) { - printk(KERN_DEBUG "%s URB: no dev\n", str); - return; - } - -#ifndef OHCI_VERBOSE_DEBUG - if (status != 0) -#endif - printk(KERN_DEBUG "%s %p dev=%d ep=%d%s-%s flags=%x len=%d/%d stat=%d\n", - str, - urb, - usb_pipedevice (pipe), - usb_pipeendpoint (pipe), - usb_pipeout (pipe)? "out" : "in", - pipestring (pipe), - urb->transfer_flags, - urb->actual_length, - urb->transfer_buffer_length, - status); - -#ifdef OHCI_VERBOSE_DEBUG - if (!small) { - int i, len; - - if (usb_pipecontrol (pipe)) { - printk (KERN_DEBUG "%s: setup(8):", __FILE__); - for (i = 0; i < 8 ; i++) - printk (" %02x", ((__u8 *) urb->setup_packet) [i]); - printk ("\n"); - } - if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) { - printk (KERN_DEBUG "%s: data(%d/%d):", __FILE__, - urb->actual_length, - urb->transfer_buffer_length); - len = usb_pipeout (pipe)? - urb->transfer_buffer_length: urb->actual_length; - for (i = 0; i < 16 && i < len; i++) - printk (" %02x", ((__u8 *) urb->transfer_buffer) [i]); - printk ("%s stat:%d\n", i < len? "...": "", status); - } - } -#endif -} #define ohci_dbg_sw(ohci, next, size, format, arg...) \ do { \ @@ -407,22 +354,8 @@ ohci_dump_ed (const struct ohci_hcd *ohci, const char *label, } } -#else -static inline void ohci_dump (struct ohci_hcd *controller, int verbose) {} - -#undef OHCI_VERBOSE_DEBUG - -#endif /* DEBUG */ - /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILES - -static inline void create_debug_files (struct ohci_hcd *bus) { } -static inline void remove_debug_files (struct ohci_hcd *bus) { } - -#else - static int debug_async_open(struct inode *, struct file *); static int debug_periodic_open(struct inode *, struct file *); static int debug_registers_open(struct inode *, struct file *); @@ -871,7 +804,5 @@ static inline void remove_debug_files (struct ohci_hcd *ohci) debugfs_remove(ohci->debug_dir); } -#endif - /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 8ada13f..e1c6809 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -127,10 +127,6 @@ static int ohci_urb_enqueue ( unsigned long flags; int retval = 0; -#ifdef OHCI_VERBOSE_DEBUG - urb_print(urb, "SUB", usb_pipein(pipe), -EINPROGRESS); -#endif - /* every endpoint has a ed, locate and maybe (re)initialize it */ if (! (ed = ed_get (ohci, urb->ep, urb->dev, pipe, urb->interval))) return -ENOMEM; @@ -284,10 +280,6 @@ static int ohci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) unsigned long flags; int rc; -#ifdef OHCI_VERBOSE_DEBUG - urb_print(urb, "UNLINK", 1, status); -#endif - spin_lock_irqsave (&ohci->lock, flags); rc = usb_hcd_check_unlink_urb(hcd, urb, status); if (rc) { diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index e7f577e..182eaa2 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -68,10 +68,6 @@ __acquires(ohci->lock) break; } -#ifdef OHCI_VERBOSE_DEBUG - urb_print(urb, "RET", usb_pipeout (urb->pipe), status); -#endif - /* urb->complete() can reenter this HCD */ usb_hcd_unlink_urb_from_ep(ohci_to_hcd(ohci), urb); spin_unlock (&ohci->lock); diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index e2e5faa..ea02722 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -415,12 +415,11 @@ struct ohci_hcd { struct ed *ed_to_check; unsigned zf_delay; -#ifdef DEBUG struct dentry *debug_dir; struct dentry *debug_async; struct dentry *debug_periodic; struct dentry *debug_registers; -#endif + /* platform-specific data -- must come last */ unsigned long priv[0] __aligned(sizeof(s64)); @@ -474,10 +473,6 @@ static inline struct usb_hcd *ohci_to_hcd (const struct ohci_hcd *ohci) /*-------------------------------------------------------------------------*/ -#ifndef DEBUG -#define STUB_DEBUG_FILES -#endif /* DEBUG */ - #define ohci_dbg(ohci, fmt, args...) \ dev_dbg (ohci_to_hcd(ohci)->self.controller , fmt , ## args ) #define ohci_err(ohci, fmt, args...) \ -- cgit v0.10.2 From d2c4254ff9753485900762dea98958ae4622aa05 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:22:58 +0100 Subject: ohci: kill ohci_vdbg With the introduction of dynamic debugging it has become redundant. Collapse it with ohci_dbg() Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index e1c6809..501ecea 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -832,7 +832,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) } if (ints & OHCI_INTR_RHSC) { - ohci_vdbg(ohci, "rhsc\n"); + ohci_dbg(ohci, "rhsc\n"); ohci->next_statechange = jiffies + STATECHANGE_DELAY; ohci_writel(ohci, OHCI_INTR_RD | OHCI_INTR_RHSC, ®s->intrstatus); @@ -854,7 +854,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) * this might not happen. */ else if (ints & OHCI_INTR_RD) { - ohci_vdbg(ohci, "resume detect\n"); + ohci_dbg(ohci, "resume detect\n"); ohci_writel(ohci, OHCI_INTR_RD, ®s->intrstatus); set_bit(HCD_FLAG_POLL_RH, &hcd->flags); if (ohci->autostop) { diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index 182eaa2..d4253e3 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -143,7 +143,7 @@ static void periodic_link (struct ohci_hcd *ohci, struct ed *ed) { unsigned i; - ohci_vdbg (ohci, "link %sed %p branch %d [%dus.], interval %d\n", + ohci_dbg(ohci, "link %sed %p branch %d [%dus.], interval %d\n", (ed->hwINFO & cpu_to_hc32 (ohci, ED_ISO)) ? "iso " : "", ed, ed->branch, ed->load, ed->interval); @@ -290,7 +290,7 @@ static void periodic_unlink (struct ohci_hcd *ohci, struct ed *ed) } ohci_to_hcd(ohci)->self.bandwidth_allocated -= ed->load / ed->interval; - ohci_vdbg (ohci, "unlink %sed %p branch %d [%dus.], interval %d\n", + ohci_dbg(ohci, "unlink %sed %p branch %d [%dus.], interval %d\n", (ed->hwINFO & cpu_to_hc32 (ohci, ED_ISO)) ? "iso " : "", ed, ed->branch, ed->load, ed->interval); } @@ -761,7 +761,7 @@ static int td_done(struct ohci_hcd *ohci, struct urb *urb, struct td *td) urb->iso_frame_desc [td->index].status = cc_to_error [cc]; if (cc != TD_CC_NOERROR) - ohci_vdbg (ohci, + ohci_dbg(ohci, "urb %p iso td %p (%d) len %d cc %d\n", urb, td, 1 + td->index, dlen, cc); @@ -793,7 +793,7 @@ static int td_done(struct ohci_hcd *ohci, struct urb *urb, struct td *td) } if (cc != TD_CC_NOERROR && cc < 0x0E) - ohci_vdbg (ohci, + ohci_dbg(ohci, "urb %p td %p (%d) cc %d, len=%d/%d\n", urb, td, 1 + td->index, cc, urb->actual_length, diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index ea02722..9250cad 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -482,12 +482,6 @@ static inline struct usb_hcd *ohci_to_hcd (const struct ohci_hcd *ohci) #define ohci_warn(ohci, fmt, args...) \ dev_warn (ohci_to_hcd(ohci)->self.controller , fmt , ## args ) -#ifdef OHCI_VERBOSE_DEBUG -# define ohci_vdbg ohci_dbg -#else -# define ohci_vdbg(ohci, fmt, args...) do { } while (0) -#endif - /*-------------------------------------------------------------------------*/ /* -- cgit v0.10.2 From 1714ba0e8ec07ff9a7f6d165d4fbb471df6c10da Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:22:59 +0100 Subject: ohci:always register debug files Just remove the conditional compilation. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 501ecea..de0e3e4 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1225,13 +1225,11 @@ static int __init ohci_hcd_mod_init(void) sizeof (struct ed), sizeof (struct td)); set_bit(USB_OHCI_LOADED, &usb_hcds_loaded); -#ifdef DEBUG ohci_debug_root = debugfs_create_dir("ohci", usb_debug_root); if (!ohci_debug_root) { retval = -ENOENT; goto error_debug; } -#endif #ifdef PS3_SYSTEM_BUS_DRIVER retval = ps3_ohci_driver_register(&PS3_SYSTEM_BUS_DRIVER); @@ -1306,11 +1304,9 @@ static int __init ohci_hcd_mod_init(void) ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); error_ps3: #endif -#ifdef DEBUG debugfs_remove(ohci_debug_root); ohci_debug_root = NULL; error_debug: -#endif clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded); return retval; @@ -1340,9 +1336,7 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); #endif -#ifdef DEBUG debugfs_remove(ohci_debug_root); -#endif clear_bit(USB_OHCI_LOADED, &usb_hcds_loaded); } module_exit(ohci_hcd_mod_exit); -- cgit v0.10.2 From 00b033bb90c1e8838616f342abe6e2f0a56e839f Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:00 +0100 Subject: ohci: no conditional debugging in root hub hadling With dynamic debugging the selection is done in user space Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 61705a7..c81c872 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -725,10 +725,8 @@ static int ohci_hub_control ( temp = roothub_portstatus (ohci, wIndex); put_unaligned_le32(temp, buf); -#ifndef OHCI_VERBOSE_DEBUG - if (*(u16*)(buf+2)) /* only if wPortChange is interesting */ -#endif - dbg_port (ohci, "GetStatus", wIndex, temp); + if (*(u16*)(buf+2)) /* only if wPortChange is interesting */ + dbg_port(ohci, "GetStatus", wIndex, temp); break; case SetHubFeature: switch (wValue) { -- cgit v0.10.2 From bbcd5cab03e61f69d50a1535ff2646f9698b9760 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:01 +0100 Subject: ehci: no conditional compilation for interestingness Simple elemination of the conditional compilation Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 835fc08..47b858f 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -1114,10 +1114,8 @@ static int ehci_hub_control ( if (test_bit(wIndex, &ehci->port_c_suspend)) status |= USB_PORT_STAT_C_SUSPEND << 16; -#ifndef VERBOSE_DEBUG - if (status & ~0xffff) /* only if wPortChange is interesting */ -#endif - dbg_port (ehci, "GetStatus", wIndex + 1, temp); + if (status & ~0xffff) /* only if wPortChange is interesting */ + dbg_port(ehci, "GetStatus", wIndex + 1, temp); put_unaligned_le32(status, buf); break; case SetHubFeature: -- cgit v0.10.2 From 991fb3daac946441dbf4c237b2dd4d6c11fff633 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:02 +0100 Subject: ehci: Remove debugging at every interrupt This is overkill. Just removeit. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index e8ba4c4..b57e997 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -714,13 +714,6 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) cmd = ehci_readl(ehci, &ehci->regs->command); bh = 0; -#ifdef VERBOSE_DEBUG - /* unrequested/ignored: Frame List Rollover */ - dbg_status (ehci, "irq", status); -#endif - - /* INT, ERR, and IAA interrupt rates can be throttled */ - /* normal [4.15.1.2] or error [4.15.1.1] completion */ if (likely ((status & (STS_INT|STS_ERR)) != 0)) { if (likely ((status & STS_ERR) == 0)) -- cgit v0.10.2 From a90b8fc6f477ef40bd7a50354ce4ae029d8c70c5 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:03 +0100 Subject: fotg210: remove conditional compilation Always compile in the debugfs support Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 55486bd..3af0533 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -352,13 +352,6 @@ dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILES - -static inline void create_debug_files(struct fotg210_hcd *bus) { } -static inline void remove_debug_files(struct fotg210_hcd *bus) { } - -#else - /* troubleshooting help: expose state in debugfs */ static int debug_async_open(struct inode *, struct file *); @@ -954,7 +947,6 @@ static inline void remove_debug_files(struct fotg210_hcd *fotg210) debugfs_remove_recursive(fotg210->debug_dir); } -#endif /* STUB_DEBUG_FILES */ /*-------------------------------------------------------------------------*/ /* diff --git a/drivers/usb/host/fotg210.h b/drivers/usb/host/fotg210.h index 8920f9d..ac6cd1b 100644 --- a/drivers/usb/host/fotg210.h +++ b/drivers/usb/host/fotg210.h @@ -174,9 +174,7 @@ struct fotg210_hcd { /* one per controller */ #endif /* debug files */ -#ifdef DEBUG struct dentry *debug_dir; -#endif }; /* convert between an HCD pointer and the corresponding FOTG210_HCD */ @@ -741,10 +739,4 @@ static inline unsigned fotg210_read_frame_index(struct fotg210_hcd *fotg210) }) /*-------------------------------------------------------------------------*/ -#ifndef DEBUG -#define STUB_DEBUG_FILES -#endif /* DEBUG */ - -/*-------------------------------------------------------------------------*/ - #endif /* __LINUX_FOTG210_H */ -- cgit v0.10.2 From 063635ec3ac6d02cefce06038f2166bbff85d840 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:04 +0100 Subject: fotg210: always compile the support for debugfs Simply remove the conditional compilation and remove the empty stubs. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 3af0533..15ee566 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -59,9 +59,7 @@ static const char hcd_name[] = "fotg210_hcd"; #undef VERBOSE_DEBUG #undef FOTG210_URB_TRACE -#ifdef DEBUG #define FOTG210_STATS -#endif /* magic numbers that can affect system performance */ #define FOTG210_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */ @@ -113,8 +111,6 @@ MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us"); static inline void fotg210_vdbg(struct fotg210_hcd *fotg210, ...) {} #endif -#ifdef DEBUG - /* check the values in the HCSPARAMS register * (host controller _Structural_ parameters) * see EHCI spec, Table 2-4 for each value @@ -129,13 +125,6 @@ static void dbg_hcs_params(struct fotg210_hcd *fotg210, char *label) HCS_N_PORTS(params) ); } -#else - -static inline void dbg_hcs_params(struct fotg210_hcd *fotg210, char *label) {} - -#endif - -#ifdef DEBUG /* check the values in the HCCPARAMS register * (host controller _Capability_ parameters) @@ -152,13 +141,6 @@ static void dbg_hcc_params(struct fotg210_hcd *fotg210, char *label) HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024", HCC_CANPARK(params) ? " park" : ""); } -#else - -static inline void dbg_hcc_params(struct fotg210_hcd *fotg210, char *label) {} - -#endif - -#ifdef DEBUG static void __maybe_unused dbg_qtd(const char *label, struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd) @@ -308,29 +290,6 @@ dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) (status & PORT_CONNECT) ? " CONNECT" : ""); } -#else -static inline void __maybe_unused -dbg_qh(char *label, struct fotg210_hcd *fotg210, struct fotg210_qh *qh) -{} - -static inline int __maybe_unused -dbg_status_buf(char *buf, unsigned len, const char *label, u32 status) -{ return 0; } - -static inline int __maybe_unused -dbg_command_buf(char *buf, unsigned len, const char *label, u32 command) -{ return 0; } - -static inline int __maybe_unused -dbg_intr_buf(char *buf, unsigned len, const char *label, u32 enable) -{ return 0; } - -static inline int __maybe_unused -dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) -{ return 0; } - -#endif /* DEBUG */ - /* functions have the "wrong" filename when they're output... */ #define dbg_status(fotg210, label, status) { \ char _buf[80]; \ @@ -6005,13 +5964,11 @@ static int __init fotg210_hcd_init(void) sizeof(struct fotg210_qh), sizeof(struct fotg210_qtd), sizeof(struct fotg210_itd)); -#ifdef DEBUG fotg210_debug_root = debugfs_create_dir("fotg210", usb_debug_root); if (!fotg210_debug_root) { retval = -ENOENT; goto err_debug; } -#endif retval = platform_driver_register(&fotg210_hcd_driver); if (retval < 0) @@ -6020,11 +5977,9 @@ static int __init fotg210_hcd_init(void) platform_driver_unregister(&fotg210_hcd_driver); clean: -#ifdef DEBUG debugfs_remove(fotg210_debug_root); fotg210_debug_root = NULL; err_debug: -#endif clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); return retval; } @@ -6033,9 +5988,7 @@ module_init(fotg210_hcd_init); static void __exit fotg210_hcd_cleanup(void) { platform_driver_unregister(&fotg210_hcd_driver); -#ifdef DEBUG debugfs_remove(fotg210_debug_root); -#endif clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); } module_exit(fotg210_hcd_cleanup); -- cgit v0.10.2 From f848a88d223cafa43cb318839a1171b498cf5ec8 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:05 +0100 Subject: fotg210: change dbg_port() to evaluate parameters only if needed For dynamic debug the overhead for evaluating parameters must be sacrificed only if the message is actually printed Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 15ee566..4acb6a4 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -254,8 +254,8 @@ dbg_command_buf(char *buf, unsigned len, const char *label, u32 command) ); } -static int -dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) +static char +*dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) { char *sig; @@ -275,7 +275,7 @@ dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) break; } - return scnprintf(buf, len, + scnprintf(buf, len, "%s%sport:%d status %06x %d " "sig=%s%s%s%s%s%s%s%s", label, label[0] ? " " : "", port, status, @@ -288,6 +288,7 @@ dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) (status & PORT_PE) ? " PE" : "", (status & PORT_CSC) ? " CSC" : "", (status & PORT_CONNECT) ? " CONNECT" : ""); + return buf; } /* functions have the "wrong" filename when they're output... */ @@ -305,8 +306,7 @@ dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status) #define dbg_port(fotg210, label, port, status) { \ char _buf[80]; \ - dbg_port_buf(_buf, sizeof(_buf), label, port, status); \ - fotg210_dbg(fotg210, "%s\n", _buf); \ + fotg210_dbg(fotg210, "%s\n", dbg_port_buf(_buf, sizeof(_buf), label, port, status) ); \ } /*-------------------------------------------------------------------------*/ -- cgit v0.10.2 From 3b707ece5b286cca47104364b2064ebb526d69ea Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:06 +0100 Subject: fotg210: remove conditional compilation The decision what is interesting is made in user space. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 4acb6a4..22f0b68 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -1761,10 +1761,8 @@ static int fotg210_hub_control( if (test_bit(wIndex, &fotg210->port_c_suspend)) status |= USB_PORT_STAT_C_SUSPEND << 16; -#ifndef VERBOSE_DEBUG - if (status & ~0xffff) /* only if wPortChange is interesting */ -#endif - dbg_port(fotg210, "GetStatus", wIndex + 1, temp); + if (status & ~0xffff) /* only if wPortChange is interesting */ + dbg_port(fotg210, "GetStatus", wIndex + 1, temp); put_unaligned_le32(status, buf); break; case SetHubFeature: @@ -2225,13 +2223,12 @@ static void fotg210_clear_tt_buffer(struct fotg210_hcd *fotg210, * Note: this routine is never called for Isochronous transfers. */ if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) { -#ifdef DEBUG struct usb_device *tt = urb->dev->tt->hub; dev_dbg(&tt->dev, "clear tt buffer port %d, a%d ep%d t%08x\n", urb->dev->ttport, urb->dev->devnum, usb_pipeendpoint(urb->pipe), token); -#endif /* DEBUG */ + if (urb->dev->tt->hub != fotg210_to_hcd(fotg210)->self.root_hub) { if (usb_hub_clear_tt_buffer(urb) == 0) @@ -3534,11 +3531,9 @@ periodic_usecs(struct fotg210_hcd *fotg210, unsigned frame, unsigned uframe) break; } } -#ifdef DEBUG if (usecs > fotg210->uframe_periodic_max) fotg210_err(fotg210, "uframe %d sched overrun: %d usecs\n", frame * 8 + uframe, usecs); -#endif return usecs; } @@ -5395,10 +5390,8 @@ static irqreturn_t fotg210_irq(struct usb_hcd *hcd) cmd = fotg210_readl(fotg210, &fotg210->regs->command); bh = 0; -#ifdef VERBOSE_DEBUG /* unrequested/ignored: Frame List Rollover */ dbg_status(fotg210, "irq", status); -#endif /* INT, ERR, and IAA interrupt rates can be throttled */ -- cgit v0.10.2 From be5ac4c43d13f68320de16c2d1bcecdba0adbea1 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:07 +0100 Subject: fotg210: kill fotg210_vdbg() The decision what is interesting is shifted to user space by dynamic debugging. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 22f0b68..070582b 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -105,12 +105,6 @@ MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us"); #define fotg210_warn(fotg210, fmt, args...) \ dev_warn(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args) -#ifdef VERBOSE_DEBUG -# define fotg210_vdbg fotg210_dbg -#else - static inline void fotg210_vdbg(struct fotg210_hcd *fotg210, ...) {} -#endif - /* check the values in the HCSPARAMS register * (host controller _Structural_ parameters) * see EHCI spec, Table 2-4 for each value @@ -1349,7 +1343,7 @@ static void fotg210_iaa_watchdog(struct fotg210_hcd *fotg210) &fotg210->regs->status); } - fotg210_vdbg(fotg210, "IAA watchdog: status %x cmd %x\n", + fotg210_dbg(fotg210, "IAA watchdog: status %x cmd %x\n", status, cmd); end_unlink_async(fotg210); } @@ -1805,7 +1799,7 @@ static int fotg210_hub_control( * which can be fine if this root hub has a * transaction translator built in. */ - fotg210_vdbg(fotg210, "port %d reset\n", wIndex + 1); + fotg210_dbg(fotg210, "port %d reset\n", wIndex + 1); temp |= PORT_RESET; temp &= ~PORT_PE; @@ -2289,7 +2283,7 @@ static int qtd_copy_status( status = -EPROTO; } - fotg210_vdbg(fotg210, + fotg210_dbg(fotg210, "dev%d ep%d%s qtd token %08x --> status %d\n", usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe), @@ -4592,7 +4586,7 @@ static void itd_link_urb( if (unlikely(list_empty(&stream->td_list))) { fotg210_to_hcd(fotg210)->self.bandwidth_allocated += stream->bandwidth; - fotg210_vdbg(fotg210, + fotg210_dbg(fotg210, "schedule devp %s ep%d%s-iso period %d start %d.%d\n", urb->dev->devpath, stream->bEndpointAddress & 0x0f, (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", @@ -4725,7 +4719,7 @@ static bool itd_complete(struct fotg210_hcd *fotg210, struct fotg210_itd *itd) if (unlikely(list_is_singular(&stream->td_list))) { fotg210_to_hcd(fotg210)->self.bandwidth_allocated -= stream->bandwidth; - fotg210_vdbg(fotg210, + fotg210_dbg(fotg210, "deschedule devp %s ep%d%s-iso\n", dev->devpath, stream->bEndpointAddress & 0x0f, (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); -- cgit v0.10.2 From 0ada24a497c3f82cb806bb4b923a2edcf8ee7815 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:08 +0100 Subject: fusbh200: always build debugfs support This gets rid of conditional compilation. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index e1c6d85..b9f9592 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -159,8 +159,6 @@ static inline void dbg_hcc_params (struct fusbh200_hcd *fusbh200, char *label) { #endif -#ifdef DEBUG - static void __maybe_unused dbg_qtd (const char *label, struct fusbh200_hcd *fusbh200, struct fusbh200_qtd *qtd) { @@ -302,29 +300,6 @@ dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) (status & PORT_CONNECT) ? " CONNECT" : ""); } -#else -static inline void __maybe_unused -dbg_qh (char *label, struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh) -{} - -static inline int __maybe_unused -dbg_status_buf (char *buf, unsigned len, const char *label, u32 status) -{ return 0; } - -static inline int __maybe_unused -dbg_command_buf (char *buf, unsigned len, const char *label, u32 command) -{ return 0; } - -static inline int __maybe_unused -dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable) -{ return 0; } - -static inline int __maybe_unused -dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) -{ return 0; } - -#endif /* DEBUG */ - /* functions have the "wrong" filename when they're output... */ #define dbg_status(fusbh200, label, status) { \ char _buf [80]; \ @@ -5936,13 +5911,11 @@ static int __init fusbh200_hcd_init(void) sizeof(struct fusbh200_qh), sizeof(struct fusbh200_qtd), sizeof(struct fusbh200_itd)); -#ifdef DEBUG fusbh200_debug_root = debugfs_create_dir("fusbh200", usb_debug_root); if (!fusbh200_debug_root) { retval = -ENOENT; goto err_debug; } -#endif retval = platform_driver_register(&fusbh200_hcd_fusbh200_driver); if (retval < 0) @@ -5951,11 +5924,9 @@ static int __init fusbh200_hcd_init(void) platform_driver_unregister(&fusbh200_hcd_fusbh200_driver); clean: -#ifdef DEBUG debugfs_remove(fusbh200_debug_root); fusbh200_debug_root = NULL; err_debug: -#endif clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); return retval; } @@ -5964,9 +5935,7 @@ module_init(fusbh200_hcd_init); static void __exit fusbh200_hcd_cleanup(void) { platform_driver_unregister(&fusbh200_hcd_fusbh200_driver); -#ifdef DEBUG debugfs_remove(fusbh200_debug_root); -#endif clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); } module_exit(fusbh200_hcd_cleanup); diff --git a/drivers/usb/host/fusbh200.h b/drivers/usb/host/fusbh200.h index 797c9e8..5b73205 100644 --- a/drivers/usb/host/fusbh200.h +++ b/drivers/usb/host/fusbh200.h @@ -173,9 +173,7 @@ struct fusbh200_hcd { /* one per controller */ #endif /* debug files */ -#ifdef DEBUG struct dentry *debug_dir; -#endif }; /* convert between an HCD pointer and the corresponding FUSBH200_HCD */ @@ -734,10 +732,4 @@ static inline unsigned fusbh200_read_frame_index(struct fusbh200_hcd *fusbh200) }) /*-------------------------------------------------------------------------*/ -#ifndef DEBUG -#define STUB_DEBUG_FILES -#endif /* DEBUG */ - -/*-------------------------------------------------------------------------*/ - #endif /* __LINUX_FUSBH200_H */ -- cgit v0.10.2 From cadb37569871018600531ee4f2bb3da3c746bd91 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:09 +0100 Subject: uhci: change dependency for debug parameter To allow a full switch to dynamic debugging make the debug parameter conditional on defined(DEBUF) || defined(CONFIG_DYNAMIC_DEBUG) Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 4a86b63..d9d3c5a 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -69,18 +69,21 @@ MODULE_PARM_DESC(ignore_oc, "ignore hardware overcurrent indications"); * show all queues in /sys/kernel/debug/uhci/[pci_addr] * debug = 3, show all TDs in URBs when dumping */ -#ifdef DEBUG -#define DEBUG_CONFIGURED 1 +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) + static int debug = 1; module_param(debug, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug level"); +static char *errbuf; #else -#define DEBUG_CONFIGURED 0 -#define debug 0 + +#define debug 0 +#define errbuf NULL + #endif -static char *errbuf; + #define ERRBUF_LEN (32 * 1024) static struct kmem_cache *uhci_up_cachep; /* urb_priv */ @@ -516,13 +519,12 @@ static void release_uhci(struct uhci_hcd *uhci) { int i; - if (DEBUG_CONFIGURED) { - spin_lock_irq(&uhci->lock); - uhci->is_initialized = 0; - spin_unlock_irq(&uhci->lock); - debugfs_remove(uhci->dentry); - } + spin_lock_irq(&uhci->lock); + uhci->is_initialized = 0; + spin_unlock_irq(&uhci->lock); + + debugfs_remove(uhci->dentry); for (i = 0; i < UHCI_NUM_SKELQH; i++) uhci_free_qh(uhci, uhci->skelqh[i]); @@ -868,14 +870,14 @@ static int __init uhci_hcd_init(void) ignore_oc ? ", overcurrent ignored" : ""); set_bit(USB_UHCI_LOADED, &usb_hcds_loaded); - if (DEBUG_CONFIGURED) { - errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL); - if (!errbuf) - goto errbuf_failed; - uhci_debugfs_root = debugfs_create_dir("uhci", usb_debug_root); - if (!uhci_debugfs_root) - goto debug_failed; - } +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) + errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL); + if (!errbuf) + goto errbuf_failed; + uhci_debugfs_root = debugfs_create_dir("uhci", usb_debug_root); + if (!uhci_debugfs_root) + goto debug_failed; +#endif uhci_up_cachep = kmem_cache_create("uhci_urb_priv", sizeof(struct urb_priv), 0, 0, NULL); @@ -906,12 +908,14 @@ clean0: kmem_cache_destroy(uhci_up_cachep); up_failed: +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) debugfs_remove(uhci_debugfs_root); debug_failed: kfree(errbuf); errbuf_failed: +#endif clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); return retval; @@ -927,7 +931,9 @@ static void __exit uhci_hcd_cleanup(void) #endif kmem_cache_destroy(uhci_up_cachep); debugfs_remove(uhci_debugfs_root); +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) kfree(errbuf); +#endif clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); } -- cgit v0.10.2 From 9bab24afba2eb663efbd7f681731f8f49d42c4e8 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:10 +0100 Subject: uhci: compile debugfs conditional on CONFIG_DYNAMIC_DEBUG || DEBUG This makes sure the header files are all there Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index 8e239cd..3989f0a 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -20,7 +20,7 @@ static struct dentry *uhci_debugfs_root; -#ifdef DEBUG +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) /* Handle REALLY large printks so we don't overflow buffers */ static void lprintk(char *buf) @@ -635,7 +635,7 @@ static const struct file_operations uhci_debug_operations = { #endif /* CONFIG_DEBUG_FS */ -#else /* DEBUG */ +#else /* DEBUG || CONFIG_DYNAMIC_DEBUG*/ static inline void lprintk(char *buf) {} -- cgit v0.10.2 From 8f3fd9df2630a162f524b7633397cca95eeea28a Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:11 +0100 Subject: fusbh200: unconditionally compile debugging helpers These helpers are used only during setup of a HCD. A small overhead is no problem. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index b9f9592..17374a3 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -114,8 +114,6 @@ MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us"); static inline void fusbh200_vdbg(struct fusbh200_hcd *fusbh200, ...) {} #endif -#ifdef DEBUG - /* check the values in the HCSPARAMS register * (host controller _Structural_ parameters) * see EHCI spec, Table 2-4 for each value @@ -130,13 +128,6 @@ static void dbg_hcs_params (struct fusbh200_hcd *fusbh200, char *label) HCS_N_PORTS (params) ); } -#else - -static inline void dbg_hcs_params (struct fusbh200_hcd *fusbh200, char *label) {} - -#endif - -#ifdef DEBUG /* check the values in the HCCPARAMS register * (host controller _Capability_ parameters) @@ -153,11 +144,6 @@ static void dbg_hcc_params (struct fusbh200_hcd *fusbh200, char *label) HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024", HCC_CANPARK(params) ? " park" : ""); } -#else - -static inline void dbg_hcc_params (struct fusbh200_hcd *fusbh200, char *label) {} - -#endif static void __maybe_unused dbg_qtd (const char *label, struct fusbh200_hcd *fusbh200, struct fusbh200_qtd *qtd) -- cgit v0.10.2 From cb0badad021f546dc5599cd2ec7da203c294586d Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:12 +0100 Subject: fusb200h: don't log on every interrupt That logging is overkill. Simply remove it. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index 17374a3..bbe1e22 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -5326,13 +5326,6 @@ static irqreturn_t fusbh200_irq (struct usb_hcd *hcd) cmd = fusbh200_readl(fusbh200, &fusbh200->regs->command); bh = 0; -#ifdef VERBOSE_DEBUG - /* unrequested/ignored: Frame List Rollover */ - dbg_status (fusbh200, "irq", status); -#endif - - /* INT, ERR, and IAA interrupt rates can be throttled */ - /* normal [4.15.1.2] or error [4.15.1.1] completion */ if (likely ((status & (STS_INT|STS_ERR)) != 0)) { if (likely ((status & STS_ERR) == 0)) -- cgit v0.10.2 From 514fbbf6635b06849fa776f71e5e00a4fff0ad36 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:13 +0100 Subject: fusbh200: always compile debugfs support This is a step in the conversion to only use dynamic debugging. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index bbe1e22..10cae6c 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -307,13 +307,6 @@ dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) /*-------------------------------------------------------------------------*/ -#ifdef STUB_DEBUG_FILES - -static inline void create_debug_files (struct fusbh200_hcd *bus) { } -static inline void remove_debug_files (struct fusbh200_hcd *bus) { } - -#else - /* troubleshooting help: expose state in debugfs */ static int debug_async_open(struct inode *, struct file *); @@ -889,7 +882,6 @@ static inline void remove_debug_files (struct fusbh200_hcd *fusbh200) debugfs_remove_recursive(fusbh200->debug_dir); } -#endif /* STUB_DEBUG_FILES */ /*-------------------------------------------------------------------------*/ /* -- cgit v0.10.2 From c9472a2912e4ace063961c6f34ce80b105d6c1c6 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:14 +0100 Subject: fusb200h: always compile in debugfs support This allows removal of much conditional compilation. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index 10cae6c..b561e87b 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -60,10 +60,6 @@ static const char hcd_name [] = "fusbh200_hcd"; #undef VERBOSE_DEBUG #undef FUSBH200_URB_TRACE -#ifdef DEBUG -#define FUSBH200_STATS -#endif - /* magic numbers that can affect system performance */ #define FUSBH200_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */ #define FUSBH200_TUNE_RL_HS 4 /* nak throttle; see 4.9 */ @@ -729,7 +725,6 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) next += temp; } -#ifdef FUSBH200_STATS temp = scnprintf (next, size, "irq normal %ld err %ld iaa %ld (lost %ld)\n", fusbh200->stats.normal, fusbh200->stats.error, fusbh200->stats.iaa, @@ -741,7 +736,6 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) fusbh200->stats.complete, fusbh200->stats.unlink); size -= temp; next += temp; -#endif done: spin_unlock_irqrestore (&fusbh200->lock, flags); @@ -1722,10 +1716,8 @@ static int fusbh200_hub_control ( if (test_bit(wIndex, &fusbh200->port_c_suspend)) status |= USB_PORT_STAT_C_SUSPEND << 16; -#ifndef VERBOSE_DEBUG - if (status & ~0xffff) /* only if wPortChange is interesting */ -#endif - dbg_port (fusbh200, "GetStatus", wIndex + 1, temp); + if (status & ~0xffff) /* only if wPortChange is interesting */ + dbg_port(fusbh200, "GetStatus", wIndex + 1, temp); put_unaligned_le32(status, buf); break; case SetHubFeature: @@ -2183,13 +2175,13 @@ static void fusbh200_clear_tt_buffer(struct fusbh200_hcd *fusbh200, struct fusbh * Note: this routine is never called for Isochronous transfers. */ if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) { -#ifdef DEBUG struct usb_device *tt = urb->dev->tt->hub; + dev_dbg(&tt->dev, "clear tt buffer port %d, a%d ep%d t%08x\n", urb->dev->ttport, urb->dev->devnum, usb_pipeendpoint(urb->pipe), token); -#endif /* DEBUG */ + if (urb->dev->tt->hub != fusbh200_to_hcd(fusbh200)->self.root_hub) { if (usb_hub_clear_tt_buffer(urb) == 0) @@ -3482,11 +3474,9 @@ periodic_usecs (struct fusbh200_hcd *fusbh200, unsigned frame, unsigned uframe) break; } } -#ifdef DEBUG if (usecs > fusbh200->uframe_periodic_max) fusbh200_err (fusbh200, "uframe %d sched overrun: %d usecs\n", frame * 8 + uframe, usecs); -#endif return usecs; } @@ -5068,13 +5058,11 @@ static void fusbh200_stop (struct usb_hcd *hcd) spin_unlock_irq (&fusbh200->lock); fusbh200_mem_cleanup (fusbh200); -#ifdef FUSBH200_STATS fusbh200_dbg(fusbh200, "irq normal %ld err %ld iaa %ld (lost %ld)\n", fusbh200->stats.normal, fusbh200->stats.error, fusbh200->stats.iaa, fusbh200->stats.lost_iaa); fusbh200_dbg (fusbh200, "complete %ld unlink %ld\n", fusbh200->stats.complete, fusbh200->stats.unlink); -#endif dbg_status (fusbh200, "fusbh200_stop completed", fusbh200_readl(fusbh200, &fusbh200->regs->status)); diff --git a/drivers/usb/host/fusbh200.h b/drivers/usb/host/fusbh200.h index 5b73205..6b719e0 100644 --- a/drivers/usb/host/fusbh200.h +++ b/drivers/usb/host/fusbh200.h @@ -165,12 +165,8 @@ struct fusbh200_hcd { /* one per controller */ u8 sbrn; /* packed release number */ /* irq statistics */ -#ifdef FUSBH200_STATS struct fusbh200_stats stats; # define COUNT(x) do { (x)++; } while (0) -#else -# define COUNT(x) do {} while (0) -#endif /* debug files */ struct dentry *debug_dir; -- cgit v0.10.2 From 0b5fa3b21fac848de0df45c5f5e7f2086ee8e7f2 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:15 +0100 Subject: fusbh200: kill fusbh200_vdbg With dynamic debugging this log level is no longer supported. The decision which messages are interesting is done in user space. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index b561e87b..d5e379b 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -104,12 +104,6 @@ MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us"); #define fusbh200_warn(fusbh200, fmt, args...) \ dev_warn (fusbh200_to_hcd(fusbh200)->self.controller , fmt , ## args ) -#ifdef VERBOSE_DEBUG -# define fusbh200_vdbg fusbh200_dbg -#else - static inline void fusbh200_vdbg(struct fusbh200_hcd *fusbh200, ...) {} -#endif - /* check the values in the HCSPARAMS register * (host controller _Structural_ parameters) * see EHCI spec, Table 2-4 for each value @@ -1309,7 +1303,7 @@ static void fusbh200_iaa_watchdog(struct fusbh200_hcd *fusbh200) fusbh200_writel(fusbh200, STS_IAA, &fusbh200->regs->status); } - fusbh200_vdbg(fusbh200, "IAA watchdog: status %x cmd %x\n", + fusbh200_dbg(fusbh200, "IAA watchdog: status %x cmd %x\n", status, cmd); end_unlink_async(fusbh200); } @@ -1759,7 +1753,7 @@ static int fusbh200_hub_control ( * which can be fine if this root hub has a * transaction translator built in. */ - fusbh200_vdbg (fusbh200, "port %d reset\n", wIndex + 1); + fusbh200_dbg(fusbh200, "port %d reset\n", wIndex + 1); temp |= PORT_RESET; temp &= ~PORT_PE; @@ -2242,7 +2236,7 @@ static int qtd_copy_status ( status = -EPROTO; } - fusbh200_vdbg (fusbh200, + fusbh200_dbg(fusbh200, "dev%d ep%d%s qtd token %08x --> status %d\n", usb_pipedevice (urb->pipe), usb_pipeendpoint (urb->pipe), @@ -4529,7 +4523,7 @@ static void itd_link_urb( if (unlikely (list_empty(&stream->td_list))) { fusbh200_to_hcd(fusbh200)->self.bandwidth_allocated += stream->bandwidth; - fusbh200_vdbg (fusbh200, + fusbh200_dbg(fusbh200, "schedule devp %s ep%d%s-iso period %d start %d.%d\n", urb->dev->devpath, stream->bEndpointAddress & 0x0f, (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out", @@ -4660,7 +4654,7 @@ static bool itd_complete(struct fusbh200_hcd *fusbh200, struct fusbh200_itd *itd if (unlikely(list_is_singular(&stream->td_list))) { fusbh200_to_hcd(fusbh200)->self.bandwidth_allocated -= stream->bandwidth; - fusbh200_vdbg (fusbh200, + fusbh200_dbg(fusbh200, "deschedule devp %s ep%d%s-iso\n", dev->devpath, stream->bEndpointAddress & 0x0f, (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); -- cgit v0.10.2 From 1c20163d30db28552a341d5e0d6c007d4c8dc8be Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:16 +0100 Subject: usb: kill DEBUG compile option In the drivers that no longer need it, it is removed. It is removed from the Makefile. Drivers not fully converted to dynamic debug have it shifted down into the individual drivers. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 01e879e..7530468 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -2,8 +2,6 @@ # Makefile for USB Host Controller Drivers # -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - # tell define_trace.h where to find the xhci trace header CFLAGS_xhci-trace.o := -I$(src) diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 4a9c2ed..9269782 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -18,7 +18,7 @@ /* this file is part of ehci-hcd.c */ -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG /* check the values in the HCSPARAMS register * (host controller _Structural_ parameters) @@ -62,7 +62,7 @@ static inline void dbg_hcs_params (struct ehci_hcd *ehci, char *label) {} #endif -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG /* check the values in the HCCPARAMS register * (host controller _Capability_ parameters) @@ -101,7 +101,7 @@ static inline void dbg_hcc_params (struct ehci_hcd *ehci, char *label) {} #endif -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG static void __maybe_unused dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) @@ -301,7 +301,7 @@ static inline int __maybe_unused dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status) { return 0; } -#endif /* DEBUG || CONFIG_DYNAMIC_DEBUG */ +#endif /* CONFIG_DYNAMIC_DEBUG */ /* functions have the "wrong" filename when they're output... */ #define dbg_status(ehci, label, status) { \ diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index a06d501..87a7426 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -413,7 +413,7 @@ static int ehci_fsl_mpc512x_drv_suspend(struct device *dev) struct fsl_usb2_platform_data *pdata = dev_get_platdata(dev); u32 tmp; -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG u32 mode = ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE); mode &= USBMODE_CM_MASK; tmp = ehci_readl(ehci, hcd->regs + 0x140); /* usbcmd */ diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index b57e997..1e21a36 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1313,7 +1313,7 @@ static int __init ehci_hcd_init(void) sizeof(struct ehci_qh), sizeof(struct ehci_qtd), sizeof(struct ehci_itd), sizeof(struct ehci_sitd)); -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG ehci_debug_root = debugfs_create_dir("ehci", usb_debug_root); if (!ehci_debug_root) { retval = -ENOENT; @@ -1362,7 +1362,7 @@ clean2: platform_driver_unregister(&PLATFORM_DRIVER); clean0: #endif -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG debugfs_remove(ehci_debug_root); ehci_debug_root = NULL; err_debug: @@ -1386,7 +1386,7 @@ static void __exit ehci_hcd_cleanup(void) #ifdef PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); #endif -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG debugfs_remove(ehci_debug_root); #endif clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded); diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index db05bd8..54f5332 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -168,13 +168,13 @@ static void ehci_clear_tt_buffer(struct ehci_hcd *ehci, struct ehci_qh *qh, * Note: this routine is never called for Isochronous transfers. */ if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) { -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG struct usb_device *tt = urb->dev->tt->hub; dev_dbg(&tt->dev, "clear tt buffer port %d, a%d ep%d t%08x\n", urb->dev->ttport, urb->dev->devnum, usb_pipeendpoint(urb->pipe), token); -#endif /* DEBUG || CONFIG_DYNAMIC_DEBUG */ +#endif /* CONFIG_DYNAMIC_DEBUG */ if (!ehci_is_TDI(ehci) || urb->dev->tt->hub != ehci_to_hcd(ehci)->self.root_hub) { diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index e8f41c5..c35a6e2b 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -38,7 +38,7 @@ typedef __u16 __bitwise __hc16; #endif /* statistics can be kept for tuning/monitoring */ -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG #define EHCI_STATS #endif @@ -248,7 +248,7 @@ struct ehci_hcd { /* one per controller */ #endif /* debug files */ -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG struct dentry *debug_dir; #endif @@ -832,9 +832,9 @@ static inline u32 hc32_to_cpup (const struct ehci_hcd *ehci, const __hc32 *x) dev_warn(ehci_to_hcd(ehci)->self.controller , fmt , ## args) -#if !defined(DEBUG) && !defined(CONFIG_DYNAMIC_DEBUG) +#ifndef CONFIG_DYNAMIC_DEBUG #define STUB_DEBUG_FILES -#endif /* !DEBUG && !CONFIG_DYNAMIC_DEBUG */ +#endif /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/imx21-dbg.c b/drivers/usb/host/imx21-dbg.c index ec98ece..4f320d0 100644 --- a/drivers/usb/host/imx21-dbg.c +++ b/drivers/usb/host/imx21-dbg.c @@ -18,6 +18,10 @@ /* this file is part of imx21-hcd.c */ +#ifdef CONFIG_DYNAMIC_DEBUG +#define DEBUG +#endif + #ifndef DEBUG static inline void create_debug_files(struct imx21 *imx21) { } diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index adb01d9..cb6d608 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -62,6 +62,10 @@ #include "imx21-hcd.h" +#ifdef CONFIG_DYNAMIC_DEBUG +#define DEBUG +#endif + #ifdef DEBUG #define DEBUG_LOG_FRAME(imx21, etd, event) \ (etd)->event##_frame = readl((imx21)->regs + USBH_FRMNUB) diff --git a/drivers/usb/host/imx21-hcd.h b/drivers/usb/host/imx21-hcd.h index c005770..05122f8 100644 --- a/drivers/usb/host/imx21-hcd.h +++ b/drivers/usb/host/imx21-hcd.h @@ -24,6 +24,10 @@ #ifndef __LINUX_IMX21_HCD_H__ #define __LINUX_IMX21_HCD_H__ +#ifdef CONFIG_DYNAMIC_DEBUG +#define DEBUG +#endif + #include #define NUM_ISO_ETDS 2 diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index 4a6df2d..4a05148 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -60,6 +60,10 @@ #define oxu_info(oxu, fmt, args...) \ dev_info(oxu_to_hcd(oxu)->self.controller , fmt , ## args) +#ifdef CONFIG_DYNAMIC_DEBUG +#define DEBUG +#endif + static inline struct usb_hcd *oxu_to_hcd(struct oxu_hcd *oxu) { return container_of((void *) oxu, struct usb_hcd, hcd_priv); diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index 3989f0a..1b28a00 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -20,7 +20,7 @@ static struct dentry *uhci_debugfs_root; -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG /* Handle REALLY large printks so we don't overflow buffers */ static void lprintk(char *buf) @@ -635,7 +635,7 @@ static const struct file_operations uhci_debug_operations = { #endif /* CONFIG_DEBUG_FS */ -#else /* DEBUG || CONFIG_DYNAMIC_DEBUG*/ +#else /* CONFIG_DYNAMIC_DEBUG*/ static inline void lprintk(char *buf) {} diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index d9d3c5a..27f35e8 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -69,7 +69,7 @@ MODULE_PARM_DESC(ignore_oc, "ignore hardware overcurrent indications"); * show all queues in /sys/kernel/debug/uhci/[pci_addr] * debug = 3, show all TDs in URBs when dumping */ -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG static int debug = 1; module_param(debug, int, S_IRUGO | S_IWUSR); @@ -870,7 +870,7 @@ static int __init uhci_hcd_init(void) ignore_oc ? ", overcurrent ignored" : ""); set_bit(USB_UHCI_LOADED, &usb_hcds_loaded); -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL); if (!errbuf) goto errbuf_failed; @@ -931,7 +931,7 @@ static void __exit uhci_hcd_cleanup(void) #endif kmem_cache_destroy(uhci_up_cachep); debugfs_remove(uhci_debugfs_root); -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) +#ifdef CONFIG_DYNAMIC_DEBUG kfree(errbuf); #endif clear_bit(USB_UHCI_LOADED, &usb_hcds_loaded); -- cgit v0.10.2 From c793d08ecd944b1a180c6712bb47825e37cc0626 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 18 Nov 2013 13:23:17 +0100 Subject: USB: kill #undef VERBOSE_DEBUG It is useless now. Straight removal. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 1e21a36..4711427 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -71,7 +71,6 @@ static const char hcd_name [] = "ehci_hcd"; -#undef VERBOSE_DEBUG #undef EHCI_URB_TRACE /* magic numbers that can affect system performance */ diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 070582b..97d6939 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -56,7 +56,6 @@ static const char hcd_name[] = "fotg210_hcd"; -#undef VERBOSE_DEBUG #undef FOTG210_URB_TRACE #define FOTG210_STATS diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index d5e379b..9ea85b6 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -57,7 +57,6 @@ static const char hcd_name [] = "fusbh200_hcd"; -#undef VERBOSE_DEBUG #undef FUSBH200_URB_TRACE /* magic numbers that can affect system performance */ diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index de0e3e4..c8e0e76 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -51,8 +51,6 @@ /*-------------------------------------------------------------------------*/ -#undef OHCI_VERBOSE_DEBUG /* not always helpful */ - /* For initializing controller (mask in an HCFS mode too) */ #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR #define OHCI_INTR_INIT \ -- cgit v0.10.2 From 9f9af82ff3e3927d29474049675303284e1266f7 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 12 Nov 2013 20:07:22 +0100 Subject: usb: core: Remove superfluous name casts device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 47aade2..8d989b1 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -839,7 +839,7 @@ int usb_register_device_driver(struct usb_device_driver *new_udriver, return -ENODEV; new_udriver->drvwrap.for_devices = 1; - new_udriver->drvwrap.driver.name = (char *) new_udriver->name; + new_udriver->drvwrap.driver.name = new_udriver->name; new_udriver->drvwrap.driver.bus = &usb_bus_type; new_udriver->drvwrap.driver.probe = usb_probe_device; new_udriver->drvwrap.driver.remove = usb_unbind_device; @@ -900,7 +900,7 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner, return -ENODEV; new_driver->drvwrap.for_devices = 0; - new_driver->drvwrap.driver.name = (char *) new_driver->name; + new_driver->drvwrap.driver.name = new_driver->name; new_driver->drvwrap.driver.bus = &usb_bus_type; new_driver->drvwrap.driver.probe = usb_probe_interface; new_driver->drvwrap.driver.remove = usb_unbind_interface; -- cgit v0.10.2 From bde5ae91e8204fb747ad409e79504cc672dc97d6 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 12 Nov 2013 20:07:24 +0100 Subject: usb: gadget: Remove superfluous name casts device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven Cc: Felipe Balbi Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 807127d..6315ee6 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2717,7 +2717,7 @@ MODULE_DEVICE_TABLE(of, qe_udc_match); static struct platform_driver udc_driver = { .driver = { - .name = (char *)driver_name, + .name = driver_name, .owner = THIS_MODULE, .of_match_table = qe_udc_match, }, diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 36ac7cf..b7dea4e 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2666,7 +2666,7 @@ static struct platform_driver udc_driver = { .suspend = fsl_udc_suspend, .resume = fsl_udc_resume, .driver = { - .name = (char *)driver_name, + .name = driver_name, .owner = THIS_MODULE, /* udc suspend/resume called from OTG driver */ .suspend = fsl_udc_otg_suspend, -- cgit v0.10.2 From a458677db6a928535a7186248983d1e192142e83 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 12 Nov 2013 20:07:25 +0100 Subject: usb: host: Remove superfluous name casts device_driver.name is "const char *" Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index cb6d608..0122624 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -1930,7 +1930,7 @@ failed_request_mem: static struct platform_driver imx21_hcd_driver = { .driver = { - .name = (char *)hcd_name, + .name = hcd_name, }, .probe = imx21_probe, .remove = imx21_remove, diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index c7d0f8f..7722ec6 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1705,7 +1705,7 @@ static struct platform_driver isp116x_driver = { .suspend = isp116x_suspend, .resume = isp116x_resume, .driver = { - .name = (char *)hcd_name, + .name = hcd_name, .owner = THIS_MODULE, }, }; diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 935a2dd..cd94b10 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2829,7 +2829,7 @@ static struct platform_driver isp1362_driver = { .suspend = isp1362_suspend, .resume = isp1362_resume, .driver = { - .name = (char *)hcd_name, + .name = hcd_name, .owner = THIS_MODULE, }, }; diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 2ad004a..3bddfcf 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2534,7 +2534,7 @@ static struct platform_driver r8a66597_driver = { .probe = r8a66597_probe, .remove = r8a66597_remove, .driver = { - .name = (char *) hcd_name, + .name = hcd_name, .owner = THIS_MODULE, .pm = R8A66597_DEV_PM_OPS, }, diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index e402beb..46236e9 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3217,7 +3217,7 @@ static struct platform_driver u132_platform_driver = { .suspend = u132_suspend, .resume = u132_resume, .driver = { - .name = (char *)hcd_name, + .name = hcd_name, .owner = THIS_MODULE, }, }; -- cgit v0.10.2 From 2fd3f65132958e9ec95563cc981cc1ffca2b81a0 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 3 Dec 2013 08:27:58 +0900 Subject: USB: remove DEFINE_PCI_DEVICE_TABLE macro Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 31443ae..665686e 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -182,7 +182,7 @@ static void dwc3_pci_remove(struct pci_dev *pci) pci_disable_device(pci); } -static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { +static const struct pci_device_id dwc3_pci_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 54a1e29..f0ff4a6 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -3338,7 +3338,7 @@ static int udc_remote_wakeup(struct udc *dev) } /* PCI device parameters */ -static DEFINE_PCI_DEVICE_TABLE(pci_id) = { +static const struct pci_device_id pci_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x2096), .class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe, diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 32d5e92..78a3d92 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -3210,7 +3210,7 @@ finished: return retval; } -static DEFINE_PCI_DEVICE_TABLE(pch_udc_pcidev_id) = { +static const struct pci_device_id pch_udc_pcidev_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC), .class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe, diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c index 4cd7988..940304c 100644 --- a/drivers/usb/host/uhci-pci.c +++ b/drivers/usb/host/uhci-pci.c @@ -279,7 +279,7 @@ static const struct hc_driver uhci_driver = { .hub_control = uhci_hub_control, }; -static DEFINE_PCI_DEVICE_TABLE(uhci_pci_ids) = { { +static const struct pci_device_id uhci_pci_ids[] = { { /* handle any USB UHCI controller */ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0), .driver_data = (unsigned long) &uhci_driver, -- cgit v0.10.2 From 2e30d14f12421f39329faefd5ae92b02cc9ff255 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Wed, 4 Dec 2013 20:36:31 -0800 Subject: USB: fix coccinelle warnings drivers/usb/host/ehci-mv.c:181:26-27: WARNING comparing pointer to 0, suggest !E /c/kernel-tests/src/cocci/drivers/usb/host/ehci-mv.c:181:26-27: WARNING comparing pointer to 0 Compare pointer-typed values to NULL rather than 0 Semantic patch information: This makes an effort to choose between !x and x == NULL. !x is used if it has previously been used with the function used to initialize x. This relies on type information. More type information can be obtained using the option -all_includes and the option -I to specify an include path. Generated by: coccinelle/null/badzero.cocci CC: Jingoo Han CC: Greg Kroah-Hartman Signed-off-by: Fengguang Wu diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 417c10d..6e8afca 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -178,7 +178,7 @@ static int mv_ehci_probe(struct platform_device *pdev) ehci_mv->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r)); - if (ehci_mv->phy_regs == 0) { + if (!ehci_mv->phy_regs) { dev_err(&pdev->dev, "failed to map phy I/O memory\n"); retval = -EFAULT; goto err_put_hcd; -- cgit v0.10.2 From 782df20c5f2ad45bd453e1f0fb58a49f251845b4 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 28 Nov 2013 14:15:46 +0900 Subject: usb: dwc3: pci: remove DEFINE_PCI_DEVICE_TABLE macro Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 31443ae..665686e 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -182,7 +182,7 @@ static void dwc3_pci_remove(struct pci_dev *pci) pci_disable_device(pci); } -static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { +static const struct pci_device_id dwc3_pci_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), -- cgit v0.10.2 From ea25c37ea85b9d2b0ed3698f40753da005cfd4dc Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 28 Nov 2013 14:16:09 +0900 Subject: usb: gadget: pch_udc: remove DEFINE_PCI_DEVICE_TABLE macro Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 32d5e92..78a3d92 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -3210,7 +3210,7 @@ finished: return retval; } -static DEFINE_PCI_DEVICE_TABLE(pch_udc_pcidev_id) = { +static const struct pci_device_id pch_udc_pcidev_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC), .class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe, -- cgit v0.10.2 From 9510ecee62dff8cc603ea163bf72729c491fbe5b Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Thu, 28 Nov 2013 14:16:30 +0900 Subject: usb: gadget: amd5536udc: remove DEFINE_PCI_DEVICE_TABLE macro Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 54a1e29..f0ff4a6 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -3338,7 +3338,7 @@ static int udc_remote_wakeup(struct udc *dev) } /* PCI device parameters */ -static DEFINE_PCI_DEVICE_TABLE(pci_id) = { +static const struct pci_device_id pci_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x2096), .class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe, -- cgit v0.10.2 From 67c21fc803de62369dfc8e41dab352107d7f06ef Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Dec 2013 01:02:34 -0200 Subject: usb: phy: phy-mxs-usb: Check the return value from clk_prepare_enable() clk_prepare_enable() may fail, so let's check its return value and propagate it in the case of error. Acked-by: Peter Chen Signed-off-by: Fabio Estevam Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index fdd33b4..797c45b 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -63,9 +63,13 @@ static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) static int mxs_phy_init(struct usb_phy *phy) { + int ret; struct mxs_phy *mxs_phy = to_mxs_phy(phy); - clk_prepare_enable(mxs_phy->clk); + ret = clk_prepare_enable(mxs_phy->clk); + if (ret) + return ret; + return mxs_phy_hw_init(mxs_phy); } @@ -81,6 +85,7 @@ static void mxs_phy_shutdown(struct usb_phy *phy) static int mxs_phy_suspend(struct usb_phy *x, int suspend) { + int ret; struct mxs_phy *mxs_phy = to_mxs_phy(x); if (suspend) { @@ -89,7 +94,9 @@ static int mxs_phy_suspend(struct usb_phy *x, int suspend) x->io_priv + HW_USBPHY_CTRL_SET); clk_disable_unprepare(mxs_phy->clk); } else { - clk_prepare_enable(mxs_phy->clk); + ret = clk_prepare_enable(mxs_phy->clk); + if (ret) + return ret; writel(BM_USBPHY_CTRL_CLKGATE, x->io_priv + HW_USBPHY_CTRL_CLR); writel(0, x->io_priv + HW_USBPHY_PWD); -- cgit v0.10.2 From 317a3fa6b0814e31de5eb083bd1d047d66485d09 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Fri, 6 Dec 2013 16:13:04 +0200 Subject: ARM: OMAP1: USB: move omap_usb_config to platform data Move omap_usb_config to platform data, so that OTG driver can include it. Signed-off-by: Aaro Koskinen Acked-by: Tony Lindgren Signed-off-by: Felipe Balbi diff --git a/arch/arm/mach-omap1/include/mach/usb.h b/arch/arm/mach-omap1/include/mach/usb.h index 45e5ac7..2c26305 100644 --- a/arch/arm/mach-omap1/include/mach/usb.h +++ b/arch/arm/mach-omap1/include/mach/usb.h @@ -8,43 +8,7 @@ #define is_usb0_device(config) 0 #endif -struct omap_usb_config { - /* Configure drivers according to the connectors on your board: - * - "A" connector (rectagular) - * ... for host/OHCI use, set "register_host". - * - "B" connector (squarish) or "Mini-B" - * ... for device/gadget use, set "register_dev". - * - "Mini-AB" connector (very similar to Mini-B) - * ... for OTG use as device OR host, initialize "otg" - */ - unsigned register_host:1; - unsigned register_dev:1; - u8 otg; /* port number, 1-based: usb1 == 2 */ - - u8 hmc_mode; - - /* implicitly true if otg: host supports remote wakeup? */ - u8 rwc; - - /* signaling pins used to talk to transceiver on usbN: - * 0 == usbN unused - * 2 == usb0-only, using internal transceiver - * 3 == 3 wire bidirectional - * 4 == 4 wire bidirectional - * 6 == 6 wire unidirectional (or TLL) - */ - u8 pins[3]; - - struct platform_device *udc_device; - struct platform_device *ohci_device; - struct platform_device *otg_device; - - u32 (*usb0_init)(unsigned nwires, unsigned is_device); - u32 (*usb1_init)(unsigned nwires); - u32 (*usb2_init)(unsigned nwires, unsigned alt_pingroup); - - int (*ocpi_enable)(void); -}; +#include void omap_otg_init(struct omap_usb_config *config); diff --git a/include/linux/platform_data/usb-omap1.h b/include/linux/platform_data/usb-omap1.h new file mode 100644 index 0000000..8c7764d --- /dev/null +++ b/include/linux/platform_data/usb-omap1.h @@ -0,0 +1,51 @@ +/* + * Platform data for OMAP1 USB + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive for + * more details. + */ +#ifndef __LINUX_USB_OMAP1_H +#define __LINUX_USB_OMAP1_H + +#include + +struct omap_usb_config { + /* Configure drivers according to the connectors on your board: + * - "A" connector (rectagular) + * ... for host/OHCI use, set "register_host". + * - "B" connector (squarish) or "Mini-B" + * ... for device/gadget use, set "register_dev". + * - "Mini-AB" connector (very similar to Mini-B) + * ... for OTG use as device OR host, initialize "otg" + */ + unsigned register_host:1; + unsigned register_dev:1; + u8 otg; /* port number, 1-based: usb1 == 2 */ + + u8 hmc_mode; + + /* implicitly true if otg: host supports remote wakeup? */ + u8 rwc; + + /* signaling pins used to talk to transceiver on usbN: + * 0 == usbN unused + * 2 == usb0-only, using internal transceiver + * 3 == 3 wire bidirectional + * 4 == 4 wire bidirectional + * 6 == 6 wire unidirectional (or TLL) + */ + u8 pins[3]; + + struct platform_device *udc_device; + struct platform_device *ohci_device; + struct platform_device *otg_device; + + u32 (*usb0_init)(unsigned nwires, unsigned is_device); + u32 (*usb1_init)(unsigned nwires); + u32 (*usb2_init)(unsigned nwires, unsigned alt_pingroup); + + int (*ocpi_enable)(void); +}; + +#endif /* __LINUX_USB_OMAP1_H */ -- cgit v0.10.2 From 339e008895a912a5049e076c9d27b29eb7ce80a7 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Fri, 6 Dec 2013 16:13:05 +0200 Subject: usb: omap1: add extcon to platform data Add extcon field to platform data. Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi diff --git a/include/linux/platform_data/usb-omap1.h b/include/linux/platform_data/usb-omap1.h index 8c7764d..43b5ce1 100644 --- a/include/linux/platform_data/usb-omap1.h +++ b/include/linux/platform_data/usb-omap1.h @@ -23,6 +23,8 @@ struct omap_usb_config { unsigned register_dev:1; u8 otg; /* port number, 1-based: usb1 == 2 */ + const char *extcon; /* extcon device for OTG */ + u8 hmc_mode; /* implicitly true if otg: host supports remote wakeup? */ -- cgit v0.10.2 From 449d2ba613a551046544ea75b99563ee643c8d7c Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Fri, 6 Dec 2013 16:13:06 +0200 Subject: usb: omap1: OTG controller driver Transceivers need to manage OTG controller state on OMAP1 to enable switching between peripheral and host modes. Provide a driver for that. Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 921a9f4..0dbab6f5 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -142,6 +142,16 @@ config USB_GPIO_VBUS optionally control of a D+ pullup GPIO as well as a VBUS current limit regulator. +config OMAP_OTG + tristate "OMAP USB OTG controller driver" + depends on ARCH_OMAP_OTG && EXTCON + help + Enable this to support some transceivers on OMAP1 platforms. OTG + controller is needed to switch between host and peripheral modes. + + This driver can also be built as a module. If so, the module + will be called omap-otg. + config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" depends on USB || USB_GADGET diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 1bf6c08..64a9345 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o +obj-$(CONFIG_OMAP_OTG) += phy-omap-otg.o obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o obj-$(CONFIG_SAMSUNG_USB2PHY) += phy-samsung-usb2.o diff --git a/drivers/usb/phy/phy-omap-otg.c b/drivers/usb/phy/phy-omap-otg.c new file mode 100644 index 0000000..11598cd --- /dev/null +++ b/drivers/usb/phy/phy-omap-otg.c @@ -0,0 +1,169 @@ +/* + * OMAP OTG controller driver + * + * Based on code from tahvo-usb.c and isp1301_omap.c drivers. + * + * Copyright (C) 2005-2006 Nokia Corporation + * Copyright (C) 2004 Texas Instruments + * Copyright (C) 2004 David Brownell + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +struct otg_device { + void __iomem *base; + bool id; + bool vbus; + struct extcon_specific_cable_nb vbus_dev; + struct extcon_specific_cable_nb id_dev; + struct notifier_block vbus_nb; + struct notifier_block id_nb; +}; + +#define OMAP_OTG_CTRL 0x0c +#define OMAP_OTG_ASESSVLD (1 << 20) +#define OMAP_OTG_BSESSEND (1 << 19) +#define OMAP_OTG_BSESSVLD (1 << 18) +#define OMAP_OTG_VBUSVLD (1 << 17) +#define OMAP_OTG_ID (1 << 16) +#define OMAP_OTG_XCEIV_OUTPUTS \ + (OMAP_OTG_ASESSVLD | OMAP_OTG_BSESSEND | OMAP_OTG_BSESSVLD | \ + OMAP_OTG_VBUSVLD | OMAP_OTG_ID) + +static void omap_otg_ctrl(struct otg_device *otg_dev, u32 outputs) +{ + u32 l; + + l = readl(otg_dev->base + OMAP_OTG_CTRL); + l &= ~OMAP_OTG_XCEIV_OUTPUTS; + l |= outputs; + writel(l, otg_dev->base + OMAP_OTG_CTRL); +} + +static void omap_otg_set_mode(struct otg_device *otg_dev) +{ + if (!otg_dev->id && otg_dev->vbus) + /* Set B-session valid. */ + omap_otg_ctrl(otg_dev, OMAP_OTG_ID | OMAP_OTG_BSESSVLD); + else if (otg_dev->vbus) + /* Set A-session valid. */ + omap_otg_ctrl(otg_dev, OMAP_OTG_ASESSVLD); + else if (!otg_dev->id) + /* Set B-session end to indicate no VBUS. */ + omap_otg_ctrl(otg_dev, OMAP_OTG_ID | OMAP_OTG_BSESSEND); +} + +static int omap_otg_id_notifier(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct otg_device *otg_dev = container_of(nb, struct otg_device, id_nb); + + otg_dev->id = event; + omap_otg_set_mode(otg_dev); + + return NOTIFY_DONE; +} + +static int omap_otg_vbus_notifier(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct otg_device *otg_dev = container_of(nb, struct otg_device, + vbus_nb); + + otg_dev->vbus = event; + omap_otg_set_mode(otg_dev); + + return NOTIFY_DONE; +} + +static int omap_otg_probe(struct platform_device *pdev) +{ + const struct omap_usb_config *config = pdev->dev.platform_data; + struct otg_device *otg_dev; + struct extcon_dev *extcon; + int ret; + u32 rev; + + if (!config || !config->extcon) + return -ENODEV; + + extcon = extcon_get_extcon_dev(config->extcon); + if (!extcon) + return -EPROBE_DEFER; + + otg_dev = devm_kzalloc(&pdev->dev, sizeof(*otg_dev), GFP_KERNEL); + if (!otg_dev) + return -ENOMEM; + + otg_dev->base = devm_ioremap_resource(&pdev->dev, &pdev->resource[0]); + if (IS_ERR(otg_dev->base)) + return PTR_ERR(otg_dev->base); + + otg_dev->id_nb.notifier_call = omap_otg_id_notifier; + otg_dev->vbus_nb.notifier_call = omap_otg_vbus_notifier; + + ret = extcon_register_interest(&otg_dev->id_dev, config->extcon, + "USB-HOST", &otg_dev->id_nb); + if (ret) + return ret; + + ret = extcon_register_interest(&otg_dev->vbus_dev, config->extcon, + "USB", &otg_dev->vbus_nb); + if (ret) { + extcon_unregister_interest(&otg_dev->id_dev); + return ret; + } + + otg_dev->id = extcon_get_cable_state(extcon, "USB-HOST"); + otg_dev->vbus = extcon_get_cable_state(extcon, "USB"); + omap_otg_set_mode(otg_dev); + + rev = readl(otg_dev->base); + + dev_info(&pdev->dev, + "OMAP USB OTG controller rev %d.%d (%s, id=%d, vbus=%d)\n", + (rev >> 4) & 0xf, rev & 0xf, config->extcon, otg_dev->id, + otg_dev->vbus); + + return 0; +} + +static int omap_otg_remove(struct platform_device *pdev) +{ + struct otg_device *otg_dev = platform_get_drvdata(pdev); + + extcon_unregister_interest(&otg_dev->id_dev); + extcon_unregister_interest(&otg_dev->vbus_dev); + + return 0; +} + +static struct platform_driver omap_otg_driver = { + .probe = omap_otg_probe, + .remove = omap_otg_remove, + .driver = { + .owner = THIS_MODULE, + .name = "omap_otg", + }, +}; +module_platform_driver(omap_otg_driver); + +MODULE_DESCRIPTION("OMAP USB OTG controller driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Aaro Koskinen "); -- cgit v0.10.2 From 9ba96ae5074c9f15b357919e704ceba2bd34972d Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Fri, 6 Dec 2013 16:13:07 +0200 Subject: usb: omap1: Tahvo USB transceiver driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add Tahvo USB transceiver driver. Based on old code from linux-omap tree. The original driver was written by Juha Yrjölä, Tony Lindgren, and Timo Teräs. Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi diff --git a/Documentation/ABI/testing/sysfs-platform-tahvo-usb b/Documentation/ABI/testing/sysfs-platform-tahvo-usb new file mode 100644 index 0000000..f6e20ce --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-tahvo-usb @@ -0,0 +1,16 @@ +What: /sys/bus/platform/devices/tahvo-usb/otg_mode +Date: December 2013 +Contact: Aaro Koskinen +Description: + Set or read the current OTG mode. Valid values are "host" and + "peripheral". + + Reading: returns the current mode. + +What: /sys/bus/platform/devices/tahvo-usb/vbus +Date: December 2013 +Contact: Aaro Koskinen +Description: + Read the current VBUS state. + + Reading: returns "on" or "off". diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 0dbab6f5..4f22762 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -152,6 +152,21 @@ config OMAP_OTG This driver can also be built as a module. If so, the module will be called omap-otg. +config TAHVO_USB + tristate "Tahvo USB transceiver driver" + depends on MFD_RETU && EXTCON + select USB_PHY + help + Enable this to support USB transceiver on Tahvo. This is used + at least on Nokia 770. + +config TAHVO_USB_HOST_BY_DEFAULT + depends on TAHVO_USB + boolean "Device in USB host mode by default" + help + Say Y here, if you want the device to enter USB host mode + by default on bootup. + config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" depends on USB || USB_GADGET diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 64a9345..9b3be9e 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_FSL_USB2_OTG) += phy-fsl-usb.o obj-$(CONFIG_ISP1301_OMAP) += phy-isp1301-omap.o obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o +obj-$(CONFIG_TAHVO_USB) += phy-tahvo.o obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c new file mode 100644 index 0000000..8bb833e --- /dev/null +++ b/drivers/usb/phy/phy-tahvo.c @@ -0,0 +1,463 @@ +/* + * Tahvo USB transceiver driver + * + * Copyright (C) 2005-2006 Nokia Corporation + * + * Parts copied from isp1301_omap.c. + * Copyright (C) 2004 Texas Instruments + * Copyright (C) 2004 David Brownell + * + * Original driver written by Juha Yrjölä, Tony Lindgren and Timo Teräs. + * Modified for Retu/Tahvo MFD by Aaro Koskinen. + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "tahvo-usb" + +#define TAHVO_REG_IDSR 0x02 +#define TAHVO_REG_USBR 0x06 + +#define USBR_SLAVE_CONTROL (1 << 8) +#define USBR_VPPVIO_SW (1 << 7) +#define USBR_SPEED (1 << 6) +#define USBR_REGOUT (1 << 5) +#define USBR_MASTER_SW2 (1 << 4) +#define USBR_MASTER_SW1 (1 << 3) +#define USBR_SLAVE_SW (1 << 2) +#define USBR_NSUSPEND (1 << 1) +#define USBR_SEMODE (1 << 0) + +#define TAHVO_MODE_HOST 0 +#define TAHVO_MODE_PERIPHERAL 1 + +struct tahvo_usb { + struct platform_device *pt_dev; + struct usb_phy phy; + int vbus_state; + struct mutex serialize; + struct clk *ick; + int irq; + int tahvo_mode; + struct extcon_dev extcon; +}; + +static const char *tahvo_cable[] = { + "USB-HOST", + "USB", + NULL, +}; + +static ssize_t vbus_state_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct tahvo_usb *tu = dev_get_drvdata(device); + return sprintf(buf, "%s\n", tu->vbus_state ? "on" : "off"); +} +static DEVICE_ATTR(vbus, 0444, vbus_state_show, NULL); + +static void check_vbus_state(struct tahvo_usb *tu) +{ + struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent); + int reg, prev_state; + + reg = retu_read(rdev, TAHVO_REG_IDSR); + if (reg & TAHVO_STAT_VBUS) { + switch (tu->phy.state) { + case OTG_STATE_B_IDLE: + /* Enable the gadget driver */ + if (tu->phy.otg->gadget) + usb_gadget_vbus_connect(tu->phy.otg->gadget); + tu->phy.state = OTG_STATE_B_PERIPHERAL; + break; + case OTG_STATE_A_IDLE: + /* + * Session is now valid assuming the USB hub is driving + * Vbus. + */ + tu->phy.state = OTG_STATE_A_HOST; + break; + default: + break; + } + dev_info(&tu->pt_dev->dev, "USB cable connected\n"); + } else { + switch (tu->phy.state) { + case OTG_STATE_B_PERIPHERAL: + if (tu->phy.otg->gadget) + usb_gadget_vbus_disconnect(tu->phy.otg->gadget); + tu->phy.state = OTG_STATE_B_IDLE; + break; + case OTG_STATE_A_HOST: + tu->phy.state = OTG_STATE_A_IDLE; + break; + default: + break; + } + dev_info(&tu->pt_dev->dev, "USB cable disconnected\n"); + } + + prev_state = tu->vbus_state; + tu->vbus_state = reg & TAHVO_STAT_VBUS; + if (prev_state != tu->vbus_state) { + extcon_set_cable_state(&tu->extcon, "USB", tu->vbus_state); + sysfs_notify(&tu->pt_dev->dev.kobj, NULL, "vbus_state"); + } +} + +static void tahvo_usb_become_host(struct tahvo_usb *tu) +{ + struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent); + + extcon_set_cable_state(&tu->extcon, "USB-HOST", true); + + /* Power up the transceiver in USB host mode */ + retu_write(rdev, TAHVO_REG_USBR, USBR_REGOUT | USBR_NSUSPEND | + USBR_MASTER_SW2 | USBR_MASTER_SW1); + tu->phy.state = OTG_STATE_A_IDLE; + + check_vbus_state(tu); +} + +static void tahvo_usb_stop_host(struct tahvo_usb *tu) +{ + tu->phy.state = OTG_STATE_A_IDLE; +} + +static void tahvo_usb_become_peripheral(struct tahvo_usb *tu) +{ + struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent); + + extcon_set_cable_state(&tu->extcon, "USB-HOST", false); + + /* Power up transceiver and set it in USB peripheral mode */ + retu_write(rdev, TAHVO_REG_USBR, USBR_SLAVE_CONTROL | USBR_REGOUT | + USBR_NSUSPEND | USBR_SLAVE_SW); + tu->phy.state = OTG_STATE_B_IDLE; + + check_vbus_state(tu); +} + +static void tahvo_usb_stop_peripheral(struct tahvo_usb *tu) +{ + if (tu->phy.otg->gadget) + usb_gadget_vbus_disconnect(tu->phy.otg->gadget); + tu->phy.state = OTG_STATE_B_IDLE; +} + +static void tahvo_usb_power_off(struct tahvo_usb *tu) +{ + struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent); + + /* Disable gadget controller if any */ + if (tu->phy.otg->gadget) + usb_gadget_vbus_disconnect(tu->phy.otg->gadget); + + /* Power off transceiver */ + retu_write(rdev, TAHVO_REG_USBR, 0); + tu->phy.state = OTG_STATE_UNDEFINED; +} + +static int tahvo_usb_set_suspend(struct usb_phy *dev, int suspend) +{ + struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, phy); + struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent); + u16 w; + + dev_dbg(&tu->pt_dev->dev, "%s\n", __func__); + + w = retu_read(rdev, TAHVO_REG_USBR); + if (suspend) + w &= ~USBR_NSUSPEND; + else + w |= USBR_NSUSPEND; + retu_write(rdev, TAHVO_REG_USBR, w); + + return 0; +} + +static int tahvo_usb_set_host(struct usb_otg *otg, struct usb_bus *host) +{ + struct tahvo_usb *tu = container_of(otg->phy, struct tahvo_usb, phy); + + dev_dbg(&tu->pt_dev->dev, "%s %p\n", __func__, host); + + if (otg == NULL) + return -ENODEV; + + mutex_lock(&tu->serialize); + + if (host == NULL) { + if (tu->tahvo_mode == TAHVO_MODE_HOST) + tahvo_usb_power_off(tu); + otg->host = NULL; + mutex_unlock(&tu->serialize); + return 0; + } + + if (tu->tahvo_mode == TAHVO_MODE_HOST) { + otg->host = NULL; + tahvo_usb_become_host(tu); + } + + otg->host = host; + + mutex_unlock(&tu->serialize); + + return 0; +} + +static int tahvo_usb_set_peripheral(struct usb_otg *otg, + struct usb_gadget *gadget) +{ + struct tahvo_usb *tu = container_of(otg->phy, struct tahvo_usb, phy); + + dev_dbg(&tu->pt_dev->dev, "%s %p\n", __func__, gadget); + + if (!otg) + return -ENODEV; + + mutex_lock(&tu->serialize); + + if (!gadget) { + if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL) + tahvo_usb_power_off(tu); + tu->phy.otg->gadget = NULL; + mutex_unlock(&tu->serialize); + return 0; + } + + tu->phy.otg->gadget = gadget; + if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL) + tahvo_usb_become_peripheral(tu); + + mutex_unlock(&tu->serialize); + + return 0; +} + +static irqreturn_t tahvo_usb_vbus_interrupt(int irq, void *_tu) +{ + struct tahvo_usb *tu = _tu; + + mutex_lock(&tu->serialize); + check_vbus_state(tu); + mutex_unlock(&tu->serialize); + + return IRQ_HANDLED; +} + +static ssize_t otg_mode_show(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct tahvo_usb *tu = dev_get_drvdata(device); + + switch (tu->tahvo_mode) { + case TAHVO_MODE_HOST: + return sprintf(buf, "host\n"); + case TAHVO_MODE_PERIPHERAL: + return sprintf(buf, "peripheral\n"); + } + + return -EINVAL; +} + +static ssize_t otg_mode_store(struct device *device, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct tahvo_usb *tu = dev_get_drvdata(device); + int r; + + mutex_lock(&tu->serialize); + if (count >= 4 && strncmp(buf, "host", 4) == 0) { + if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL) + tahvo_usb_stop_peripheral(tu); + tu->tahvo_mode = TAHVO_MODE_HOST; + if (tu->phy.otg->host) { + dev_info(device, "HOST mode: host controller present\n"); + tahvo_usb_become_host(tu); + } else { + dev_info(device, "HOST mode: no host controller, powering off\n"); + tahvo_usb_power_off(tu); + } + r = strlen(buf); + } else if (count >= 10 && strncmp(buf, "peripheral", 10) == 0) { + if (tu->tahvo_mode == TAHVO_MODE_HOST) + tahvo_usb_stop_host(tu); + tu->tahvo_mode = TAHVO_MODE_PERIPHERAL; + if (tu->phy.otg->gadget) { + dev_info(device, "PERIPHERAL mode: gadget driver present\n"); + tahvo_usb_become_peripheral(tu); + } else { + dev_info(device, "PERIPHERAL mode: no gadget driver, powering off\n"); + tahvo_usb_power_off(tu); + } + r = strlen(buf); + } else { + r = -EINVAL; + } + mutex_unlock(&tu->serialize); + + return r; +} +static DEVICE_ATTR(otg_mode, 0644, otg_mode_show, otg_mode_store); + +static struct attribute *tahvo_attributes[] = { + &dev_attr_vbus.attr, + &dev_attr_otg_mode.attr, + NULL +}; + +static struct attribute_group tahvo_attr_group = { + .attrs = tahvo_attributes, +}; + +static int tahvo_usb_probe(struct platform_device *pdev) +{ + struct retu_dev *rdev = dev_get_drvdata(pdev->dev.parent); + struct tahvo_usb *tu; + int ret; + + tu = devm_kzalloc(&pdev->dev, sizeof(*tu), GFP_KERNEL); + if (!tu) + return -ENOMEM; + + tu->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*tu->phy.otg), + GFP_KERNEL); + if (!tu->phy.otg) + return -ENOMEM; + + tu->pt_dev = pdev; + + /* Default mode */ +#ifdef CONFIG_TAHVO_USB_HOST_BY_DEFAULT + tu->tahvo_mode = TAHVO_MODE_HOST; +#else + tu->tahvo_mode = TAHVO_MODE_PERIPHERAL; +#endif + + mutex_init(&tu->serialize); + + tu->ick = devm_clk_get(&pdev->dev, "usb_l4_ick"); + if (!IS_ERR(tu->ick)) + clk_enable(tu->ick); + + /* + * Set initial state, so that we generate kevents only on state changes. + */ + tu->vbus_state = retu_read(rdev, TAHVO_REG_IDSR) & TAHVO_STAT_VBUS; + + tu->extcon.name = DRIVER_NAME; + tu->extcon.supported_cable = tahvo_cable; + tu->extcon.dev.parent = &pdev->dev; + + ret = extcon_dev_register(&tu->extcon); + if (ret) { + dev_err(&pdev->dev, "could not register extcon device: %d\n", + ret); + goto err_disable_clk; + } + + /* Set the initial cable state. */ + extcon_set_cable_state(&tu->extcon, "USB-HOST", + tu->tahvo_mode == TAHVO_MODE_HOST); + extcon_set_cable_state(&tu->extcon, "USB", tu->vbus_state); + + /* Create OTG interface */ + tahvo_usb_power_off(tu); + tu->phy.dev = &pdev->dev; + tu->phy.state = OTG_STATE_UNDEFINED; + tu->phy.label = DRIVER_NAME; + tu->phy.set_suspend = tahvo_usb_set_suspend; + + tu->phy.otg->phy = &tu->phy; + tu->phy.otg->set_host = tahvo_usb_set_host; + tu->phy.otg->set_peripheral = tahvo_usb_set_peripheral; + + ret = usb_add_phy(&tu->phy, USB_PHY_TYPE_USB2); + if (ret < 0) { + dev_err(&pdev->dev, "cannot register USB transceiver: %d\n", + ret); + goto err_extcon_unreg; + } + + dev_set_drvdata(&pdev->dev, tu); + + tu->irq = platform_get_irq(pdev, 0); + ret = request_threaded_irq(tu->irq, NULL, tahvo_usb_vbus_interrupt, 0, + "tahvo-vbus", tu); + if (ret) { + dev_err(&pdev->dev, "could not register tahvo-vbus irq: %d\n", + ret); + goto err_remove_phy; + } + + /* Attributes */ + ret = sysfs_create_group(&pdev->dev.kobj, &tahvo_attr_group); + if (ret) { + dev_err(&pdev->dev, "cannot create sysfs group: %d\n", ret); + goto err_free_irq; + } + + return 0; + +err_free_irq: + free_irq(tu->irq, tu); +err_remove_phy: + usb_remove_phy(&tu->phy); +err_extcon_unreg: + extcon_dev_unregister(&tu->extcon); +err_disable_clk: + if (!IS_ERR(tu->ick)) + clk_disable(tu->ick); + + return ret; +} + +static int tahvo_usb_remove(struct platform_device *pdev) +{ + struct tahvo_usb *tu = platform_get_drvdata(pdev); + + sysfs_remove_group(&pdev->dev.kobj, &tahvo_attr_group); + free_irq(tu->irq, tu); + usb_remove_phy(&tu->phy); + extcon_dev_unregister(&tu->extcon); + if (!IS_ERR(tu->ick)) + clk_disable(tu->ick); + + return 0; +} + +static struct platform_driver tahvo_usb_driver = { + .probe = tahvo_usb_probe, + .remove = tahvo_usb_remove, + .driver = { + .name = "tahvo-usb", + .owner = THIS_MODULE, + }, +}; +module_platform_driver(tahvo_usb_driver); + +MODULE_DESCRIPTION("Tahvo USB transceiver driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Juha Yrjölä, Tony Lindgren, and Timo Teräs"); +MODULE_AUTHOR("Aaro Koskinen "); -- cgit v0.10.2 From c952a8ba7136505cd1ca01735cc748ddc08c7d2f Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Mon, 4 Nov 2013 21:11:53 +0800 Subject: usb: usbtest: add a test case to support bos for queue control In Test 10 of usbtest module, it queues multiple control messages and thereby tests control message queuing, protocol stalls, short reads, and fault handling. And this patch add a test case to support queue BOS control request for USB 3.0 SPEC. Signed-off-by: Huang Rui Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index b415282..f3c3136 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -944,7 +944,7 @@ struct ctrl_ctx { int last; }; -#define NUM_SUBCASES 15 /* how many test subcases here? */ +#define NUM_SUBCASES 16 /* how many test subcases here? */ struct subcase { struct usb_ctrlrequest setup; @@ -1218,6 +1218,15 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) } expected = -EREMOTEIO; break; + case 15: + req.wValue = cpu_to_le16(USB_DT_BOS << 8); + if (udev->bos) + len = le16_to_cpu(udev->bos->desc->wTotalLength); + else + len = sizeof(struct usb_bos_descriptor); + if (udev->speed != USB_SPEED_SUPER) + expected = -EPIPE; + break; default: ERROR(dev, "bogus number of ctrl queue testcases!\n"); context.status = -EINVAL; -- cgit v0.10.2 From 875bc23ac041519b24bd2c1faf71822e4b3e4322 Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Wed, 13 Nov 2013 22:35:14 +0800 Subject: usb: usbtest: fix the bit mask of usb 2.0 extension descriptor USB 2.1 Link PM adds to use bits[1:15] according to USB 2.0 ECN Errata for Link Power Management spec. Bit Encoding 0 Reserved 1 LPM 2 BESL & Altemate HIRD definitions supported 3 Recommended Baseline BESL valid 4 Recommended Deep BESL valid 11:8 Recommended Baseline BESL value 15:12 Recommended Deep BESL value 31:16 Reserved So fix the bit mask from 0x1e to 0xfffe. Reported-by: Sarah Sharp Signed-off-by: Huang Rui Acked-by: Felipe Balbi Acked-by: Sarah Sharp Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index f3c3136..0b5c3b1 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -619,8 +619,8 @@ static int is_good_ext(struct usbtest_dev *tdev, u8 *buf) } attr = le32_to_cpu(ext->bmAttributes); - /* bits[1:4] is used and others are reserved */ - if (attr & ~0x1e) { /* reserved == 0 */ + /* bits[1:15] is used and others are reserved */ + if (attr & ~0xfffe) { /* reserved == 0 */ ERROR(tdev, "reserved bits set\n"); return 0; } -- cgit v0.10.2 From f625099f1a504742aef4c6ab20ba0ca981847e3c Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Wed, 13 Nov 2013 22:35:13 +0800 Subject: usb: usbtest: update bos test coverage to usb 2.1 device The commit "usb: usbtest: support bos descriptor test for usb 3.0" introduced a test for bos descriptor. And USB 2.1 device also can be checked. So this patch extends the test coverage to support USB 2.1 device. Reported-by: Sarah Sharp Signed-off-by: Huang Rui Acked-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 0b5c3b1..bff058e 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -763,7 +763,7 @@ static int ch9_postconfig(struct usbtest_dev *dev) * there's always [9.4.3] a bos device descriptor [9.6.2] in USB * 3.0 spec */ - if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0300) { + if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) { struct usb_bos_descriptor *bos = NULL; struct usb_dev_cap_header *header = NULL; unsigned total, num, length; -- cgit v0.10.2 From e1bffbf622ebceff411fef4970f0fa6326b45830 Mon Sep 17 00:00:00 2001 From: Majunath Goudar Date: Wed, 13 Nov 2013 17:40:16 +0530 Subject: USB: OHCI: Properly handle OHCI controller suspend Suspend scenario in case of OHCI was not properly handled in ochi_suspend()routine. Alan Stern suggested, properly handle OHCI suspend scenario. This does generic proper handling of suspend scenario to all OHCI SOC. Signed-off-by: Manjunath Goudar Acked-by: Alan Stern Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index c8e0e76..3586460 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1026,6 +1026,7 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); unsigned long flags; + int rc = 0; /* Disable irq emission and mark HW unaccessible. Use * the spinlock to properly synchronize with possible pending @@ -1038,7 +1039,13 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup) clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); spin_unlock_irqrestore (&ohci->lock, flags); - return 0; + synchronize_irq(hcd->irq); + + if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) { + ohci_resume(hcd, false); + rc = -EBUSY; + } + return rc; } EXPORT_SYMBOL_GPL(ohci_suspend); -- cgit v0.10.2 From a9d3840ed3441d5996647b61b6e2ee630242989f Mon Sep 17 00:00:00 2001 From: Majunath Goudar Date: Wed, 13 Nov 2013 17:40:17 +0530 Subject: USB: OHCI: Properly handle ohci-at91 suspend Suspend scenario in case of ohci-at91 glue was not properly handled as it was not suspending generic part of ohci controller. Alan Stern suggested, properly handle ohci-at91 suspend scenario. Calling explicitly the ohci_suspend() routine in ohci_hcd_at91_drv_suspend() will ensure proper handling of suspend scenario. This task is sugested by Alan Stern. Signed-off-by: Manjunath Goudar Acked-by: Alan Stern Cc: Arnd Bergmann Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 418444e..cc9462f 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -635,10 +635,17 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) { struct usb_hcd *hcd = platform_get_drvdata(pdev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); + bool do_wakeup = device_may_wakeup(&pdev->dev); + int ret; - if (device_may_wakeup(&pdev->dev)) + if (do_wakeup) enable_irq_wake(hcd->irq); + ret = ohci_suspend(hcd, do_wakeup); + if (ret) { + disable_irq_wake(hcd->irq); + return ret; + } /* * The integrated transceivers seem unable to notice disconnect, * reconnect, or wakeup without the 48 MHz clock active. so for @@ -657,7 +664,7 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) at91_stop_clock(); } - return 0; + return ret; } static int ohci_hcd_at91_drv_resume(struct platform_device *pdev) -- cgit v0.10.2 From 0ded36d91821620e4e8f50fb9e47440988e06366 Mon Sep 17 00:00:00 2001 From: Majunath Goudar Date: Wed, 13 Nov 2013 17:40:18 +0530 Subject: USB: OHCI: Properly handle ohci-s3c2410 suspend Suspend scenario in case of ohci-s3c2410 glue was not properly handled as it was not suspending generic part of ohci controller. Alan Stern suggested, properly handle ohci-s3c2410 suspend scenario. Calling explicitly the ohci_suspend() routine in ohci_hcd_s3c2410_drv_suspend() will ensure proper handling of suspend scenario. Signed-off-by: Manjunath Goudar Acked-by: Alan Stern Cc: Ben Dooks Cc: Kukjin Kim Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index f90101b..83cd1dc 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -426,28 +426,15 @@ static int ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev) static int ohci_hcd_s3c2410_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct ohci_hcd *ohci = hcd_to_ohci(hcd); struct platform_device *pdev = to_platform_device(dev); - unsigned long flags; + bool do_wakeup = device_may_wakeup(dev); int rc = 0; - /* - * Root hub was already suspended. Disable irq emission and - * mark HW unaccessible, bail out if RH has been resumed. Use - * the spinlock to properly synchronize with possible pending - * RH suspend or resume activity. - */ - spin_lock_irqsave(&ohci->lock, flags); - if (ohci->rh_state != OHCI_RH_SUSPENDED) { - rc = -EINVAL; - goto bail; - } - - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + rc = ohci_suspend(hcd, do_wakeup); + if (rc) + return rc; s3c2410_stop_hc(pdev); -bail: - spin_unlock_irqrestore(&ohci->lock, flags); return rc; } -- cgit v0.10.2 From 933bb1f0442ea1c15e7d9d23894d8dd4937bdf95 Mon Sep 17 00:00:00 2001 From: Majunath Goudar Date: Wed, 13 Nov 2013 17:40:19 +0530 Subject: USB: OHCI: Properly handle ohci-da8xx suspend Suspend scenario in case of ohci-da8xx glue was not properly handled as it was not suspending generic part of ohci controller. Alan Stern suggested, properly handle ohci-da8xx suspend scenario. Calling explicitly the ohci_suspend() routine in ohci_da8xx_suspend() will ensure proper handling of suspend scenario. Signed-off-by: Manjunath Goudar Acked-by: Alan Stern Cc: Arnd Bergmann Cc: linux-usb@vger.kernel.or Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index 9be59f1..71dbd85 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -406,19 +406,27 @@ static int ohci_hcd_da8xx_drv_remove(struct platform_device *dev) } #ifdef CONFIG_PM -static int ohci_da8xx_suspend(struct platform_device *dev, pm_message_t message) +static int ohci_da8xx_suspend(struct platform_device *pdev, + pm_message_t message) { - struct usb_hcd *hcd = platform_get_drvdata(dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); + bool do_wakeup = device_may_wakeup(&pdev->dev); + int ret; + if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; + ohci_da8xx_clock(0); hcd->state = HC_STATE_SUSPENDED; - dev->dev.power.power_state = PMSG_SUSPEND; - return 0; + + return ret; } static int ohci_da8xx_resume(struct platform_device *dev) -- cgit v0.10.2 From 14982e31da83a818d03748a89957e47c139d8f07 Mon Sep 17 00:00:00 2001 From: Majunath Goudar Date: Wed, 13 Nov 2013 17:40:20 +0530 Subject: USB: OHCI: Properly handle ohci-exynos suspend Suspend scenario in case of ohci-exynos glue was not properly handled as it was not suspending generic part of ohci controller. Alan Stern suggested, properly handle ohci-exynos suspend scenario. Calling explicitly the ohci_suspend() routine in exynos_ohci_suspend() will ensure proper handling of suspend scenario. Signed-off-by: Manjunath Goudar Acked-by: Alan Stern Cc: Arnd Bergmann Cc: Kukjin Kim Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 91ec9b2..9897d70 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -191,23 +191,14 @@ static int exynos_ohci_suspend(struct device *dev) struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); struct ohci_hcd *ohci = hcd_to_ohci(hcd); struct platform_device *pdev = to_platform_device(dev); + bool do_wakeup = device_may_wakeup(dev); unsigned long flags; - int rc = 0; + int rc = ohci_suspend(hcd, do_wakeup); - /* - * Root hub was already suspended. Disable irq emission and - * mark HW unaccessible, bail out if RH has been resumed. Use - * the spinlock to properly synchronize with possible pending - * RH suspend or resume activity. - */ - spin_lock_irqsave(&ohci->lock, flags); - if (ohci->rh_state != OHCI_RH_SUSPENDED && - ohci->rh_state != OHCI_RH_HALTED) { - rc = -EINVAL; - goto fail; - } + if (rc) + return rc; - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + spin_lock_irqsave(&ohci->lock, flags); if (exynos_ohci->otg) exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); @@ -216,10 +207,9 @@ static int exynos_ohci_suspend(struct device *dev) clk_disable_unprepare(exynos_ohci->clk); -fail: spin_unlock_irqrestore(&ohci->lock, flags); - return rc; + return 0; } static int exynos_ohci_resume(struct device *dev) -- cgit v0.10.2 From d2e3d2b348bce1bb96cd42db51789f368c3eb974 Mon Sep 17 00:00:00 2001 From: Majunath Goudar Date: Wed, 13 Nov 2013 17:40:21 +0530 Subject: USB: OHCI: Properly handle ohci-spear suspend Suspend scenario in case of ohci-spear glue was not properly handled as it was not suspending generic part of ohci controller. Alan Stern suggested, properly handle ohci-spear suspend scenario. Calling explicitly the ohci_suspend() routine in spear_ohci_hcd_drv_suspend() will ensure proper handling of suspend scenario. Signed-off-by: Manjunath Goudar Acked-by: Alan Stern Cc: Arnd Bergmann Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index 6b02107..e418c19 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -129,20 +129,26 @@ static int spear_ohci_hcd_drv_remove(struct platform_device *pdev) } #if defined(CONFIG_PM) -static int spear_ohci_hcd_drv_suspend(struct platform_device *dev, +static int spear_ohci_hcd_drv_suspend(struct platform_device *pdev, pm_message_t message) { - struct usb_hcd *hcd = platform_get_drvdata(dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); struct spear_ohci *sohci_p = to_spear_ohci(hcd); + bool do_wakeup = device_may_wakeup(&pdev->dev); + int ret; if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; + clk_disable_unprepare(sohci_p->clk); - return 0; + return ret; } static int spear_ohci_hcd_drv_resume(struct platform_device *dev) -- cgit v0.10.2 From b374487ebe8a91d03c07fe361af375e09285c3b0 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 25 Nov 2013 16:17:16 -0600 Subject: usb: wusbcore: add calls to usb_hcd_link_urb_to_ep, usb_hcd_unlink_urb_from_ep, and Add calls to usb_hcd_link_urb_to_ep, usb_hcd_unlink_urb_from_ep, and usb_hcd_check_unlink_urb in the appropriate locations. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index ada0a52..a4ec9e6 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -224,7 +224,7 @@ static int hwahc_op_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); - return wa_urb_dequeue(&hwahc->wa, urb); + return wa_urb_dequeue(&hwahc->wa, urb, status); } /* diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index e614f02..5b6ae3a 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -332,7 +332,7 @@ static inline int rpipe_avail_inc(struct wa_rpipe *rpipe) /* Transferring data */ extern int wa_urb_enqueue(struct wahc *, struct usb_host_endpoint *, struct urb *, gfp_t); -extern int wa_urb_dequeue(struct wahc *, struct urb *); +extern int wa_urb_dequeue(struct wahc *, struct urb *, int); extern void wa_handle_notif_xfer(struct wahc *, struct wa_notif_hdr *); diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index ed5abe8..5957e48 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -282,6 +282,7 @@ static void wa_xfer_giveback(struct wa_xfer *xfer) spin_lock_irqsave(&xfer->wa->xfer_list_lock, flags); list_del_init(&xfer->list_node); + usb_hcd_unlink_urb_from_ep(&(xfer->wa->wusb->usb_hcd), xfer->urb); spin_unlock_irqrestore(&xfer->wa->xfer_list_lock, flags); /* FIXME: segmentation broken -- kills DWA */ wusbhc_giveback_urb(xfer->wa->wusb, xfer->urb, xfer->result); @@ -1730,6 +1731,12 @@ int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, dump_stack(); } + spin_lock_irqsave(&wa->xfer_list_lock, my_flags); + result = usb_hcd_link_urb_to_ep(&(wa->wusb->usb_hcd), urb); + spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); + if (result < 0) + goto error_link_urb; + result = -ENOMEM; xfer = kzalloc(sizeof(*xfer), gfp); if (xfer == NULL) @@ -1769,6 +1776,9 @@ int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, __func__, result); wa_put(xfer->wa); wa_xfer_put(xfer); + spin_lock_irqsave(&wa->xfer_list_lock, my_flags); + usb_hcd_unlink_urb_from_ep(&(wa->wusb->usb_hcd), urb); + spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); return result; } } @@ -1777,6 +1787,10 @@ int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, error_dequeued: kfree(xfer); error_kmalloc: + spin_lock_irqsave(&wa->xfer_list_lock, my_flags); + usb_hcd_unlink_urb_from_ep(&(wa->wusb->usb_hcd), urb); + spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); +error_link_urb: return result; } EXPORT_SYMBOL_GPL(wa_urb_enqueue); @@ -1799,7 +1813,7 @@ EXPORT_SYMBOL_GPL(wa_urb_enqueue); * asynch request] and then make sure we cancel each segment. * */ -int wa_urb_dequeue(struct wahc *wa, struct urb *urb) +int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) { unsigned long flags, flags2; struct wa_xfer *xfer; @@ -1807,6 +1821,14 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) struct wa_rpipe *rpipe; unsigned cnt, done = 0, xfer_abort_pending; unsigned rpipe_ready = 0; + int result; + + /* check if it is safe to unlink. */ + spin_lock_irqsave(&wa->xfer_list_lock, flags); + result = usb_hcd_check_unlink_urb(&(wa->wusb->usb_hcd), urb, status); + spin_unlock_irqrestore(&wa->xfer_list_lock, flags); + if (result) + return result; xfer = urb->hcpriv; if (xfer == NULL) { @@ -2172,7 +2194,7 @@ error_complete: error_bad_seg: spin_unlock_irqrestore(&xfer->lock, flags); - wa_urb_dequeue(wa, xfer->urb); + wa_urb_dequeue(wa, xfer->urb, -ENOENT); if (printk_ratelimit()) dev_err(dev, "xfer %p#%u: bad segment\n", xfer, seg_idx); if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { -- cgit v0.10.2 From bbfc34201fffd8a41c2ecbad2b8fb3bf00d7ee74 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 25 Nov 2013 16:17:17 -0600 Subject: usb: wusbcore: add more info to debug prints in urb_unlink path Add more info to debug prints in urb_unlink path Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 5957e48..3220c62 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -373,10 +373,10 @@ static unsigned __wa_xfer_is_done(struct wa_xfer *xfer) seg->result); goto out; case WA_SEG_ABORTED: - dev_dbg(dev, "xfer %p ID %08X#%u ABORTED: result %d\n", - xfer, wa_xfer_id(xfer), seg->index, - urb->status); - xfer->result = urb->status; + xfer->result = seg->result; + dev_dbg(dev, "xfer %p ID %08X#%u: ABORTED result %zu(0x%08zX)\n", + xfer, wa_xfer_id(xfer), seg->index, seg->result, + seg->result); goto out; default: dev_warn(dev, "xfer %p ID %08X#%u: is_done bad state %d\n", @@ -1568,7 +1568,8 @@ static int wa_urb_enqueue_b(struct wa_xfer *xfer) wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); if (wusb_dev == NULL) { mutex_unlock(&wusbhc->mutex); - pr_err("%s: error wusb dev gone\n", __func__); + dev_err(&(urb->dev->dev), "%s: error wusb dev gone\n", + __func__); goto error_dev_gone; } mutex_unlock(&wusbhc->mutex); @@ -1577,18 +1578,18 @@ static int wa_urb_enqueue_b(struct wa_xfer *xfer) xfer->wusb_dev = wusb_dev; result = urb->status; if (urb->status != -EINPROGRESS) { - pr_err("%s: error_dequeued\n", __func__); + dev_err(&(urb->dev->dev), "%s: error_dequeued\n", __func__); goto error_dequeued; } result = __wa_xfer_setup(xfer, urb); if (result < 0) { - pr_err("%s: error_xfer_setup\n", __func__); + dev_err(&(urb->dev->dev), "%s: error_xfer_setup\n", __func__); goto error_xfer_setup; } result = __wa_xfer_submit(xfer); if (result < 0) { - pr_err("%s: error_xfer_submit\n", __func__); + dev_err(&(urb->dev->dev), "%s: error_xfer_submit\n", __func__); goto error_xfer_submit; } spin_unlock_irqrestore(&xfer->lock, flags); @@ -1844,8 +1845,8 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) pr_debug("%s: DEQUEUE xfer id 0x%08X\n", __func__, wa_xfer_id(xfer)); rpipe = xfer->ep->hcpriv; if (rpipe == NULL) { - pr_debug("%s: xfer id 0x%08X has no RPIPE. %s", - __func__, wa_xfer_id(xfer), + pr_debug("%s: xfer %p id 0x%08X has no RPIPE. %s", + __func__, xfer, wa_xfer_id(xfer), "Probably already aborted.\n" ); goto out_unlock; } -- cgit v0.10.2 From e05a1fd9468bc99bf67bd81601d46d84d93c21c8 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 25 Nov 2013 16:17:18 -0600 Subject: usb: wusbcore: return -ENOENT for unlinked URBs. Return -ENOENT for unlinked URBs. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 3220c62..a88b8c6 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -1848,6 +1848,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) pr_debug("%s: xfer %p id 0x%08X has no RPIPE. %s", __func__, xfer, wa_xfer_id(xfer), "Probably already aborted.\n" ); + result = -ENOENT; goto out_unlock; } /* Check the delayed list -> if there, release and complete */ @@ -1878,6 +1879,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) * segments will be completed in the DTI interrupt. */ seg->status = WA_SEG_ABORTED; + seg->result = -ENOENT; spin_lock_irqsave(&rpipe->seg_lock, flags2); list_del(&seg->list_node); xfer->segs_done++; @@ -1917,12 +1919,12 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) wa_xfer_completion(xfer); if (rpipe_ready) wa_xfer_delayed_run(rpipe); - return 0; + return result; out_unlock: spin_unlock_irqrestore(&xfer->lock, flags); out: - return 0; + return result; dequeue_delayed: list_del_init(&xfer->list_node); @@ -1958,7 +1960,7 @@ static int wa_xfer_status_to_errno(u8 status) [WA_XFER_STATUS_NOT_FOUND] = 0, [WA_XFER_STATUS_INSUFFICIENT_RESOURCE] = -ENOMEM, [WA_XFER_STATUS_TRANSACTION_ERROR] = -EILSEQ, - [WA_XFER_STATUS_ABORTED] = -EINTR, + [WA_XFER_STATUS_ABORTED] = -ENOENT, [WA_XFER_STATUS_RPIPE_NOT_READY] = EINVAL, [WA_XFER_INVALID_FORMAT] = EINVAL, [WA_XFER_UNEXPECTED_SEGMENT_NUMBER] = EINVAL, -- cgit v0.10.2 From 0d6077f8b48ed2dce8f2466a76c0d574a3b4dbe9 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 26 Nov 2013 12:43:37 +0800 Subject: lib/scatterlist: export sg_miter_skip() sg_copy_buffer() can't meet demand for some drrivers(such usb mass storage), so we have to use the sg_miter_* APIs to access sg buffer, then need export sg_miter_skip() for these drivers. The API is needed for converting to sg_miter_* APIs in USB storage driver for accessing sg buffer. Acked-by: Andrew Morton Cc: FUJITA Tomonori Cc: Jens Axboe Signed-off-by: Ming Lei Reviewed-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index adae88f..a964f72 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -345,6 +345,7 @@ struct sg_mapping_iter { void sg_miter_start(struct sg_mapping_iter *miter, struct scatterlist *sgl, unsigned int nents, unsigned int flags); +bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset); bool sg_miter_next(struct sg_mapping_iter *miter); void sg_miter_stop(struct sg_mapping_iter *miter); diff --git a/lib/scatterlist.c b/lib/scatterlist.c index d16fa29..3a8e8e8 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -495,7 +495,7 @@ static bool sg_miter_get_next_page(struct sg_mapping_iter *miter) * true if @miter contains the valid mapping. false if end of sg * list is reached. */ -static bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset) +bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset) { sg_miter_stop(miter); @@ -513,6 +513,7 @@ static bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset) return true; } +EXPORT_SYMBOL(sg_miter_skip); /** * sg_miter_next - proceed mapping iterator to the next mapping -- cgit v0.10.2 From e5fc70d5ccc3d005bb038c0275ffdf57a34b1496 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 26 Nov 2013 12:44:13 +0800 Subject: USB: storage: use sg_miter_* APIs to access scsi buffer We have sg_miter_* APIs for accessing scsi sg buffer, so use them to make code clean and bug free. Cc: Matthew Dharm Cc: Alan Stern Cc: Greg Kroah-Hartman Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index 5dfb4c3..f54e5fe 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -135,69 +135,41 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb, struct scatterlist **sgptr, unsigned int *offset, enum xfer_buf_dir dir) { - unsigned int cnt; + unsigned int cnt = 0; struct scatterlist *sg = *sgptr; + struct sg_mapping_iter miter; + unsigned int nents = scsi_sg_count(srb); - /* We have to go through the list one entry - * at a time. Each s-g entry contains some number of pages, and - * each page has to be kmap()'ed separately. If the page is already - * in kernel-addressable memory then kmap() will return its address. - * If the page is not directly accessible -- such as a user buffer - * located in high memory -- then kmap() will map it to a temporary - * position in the kernel's virtual address space. - */ - - if (!sg) + if (sg) + nents = sg_nents(sg); + else sg = scsi_sglist(srb); - /* This loop handles a single s-g list entry, which may - * include multiple pages. Find the initial page structure - * and the starting offset within the page, and update - * the *offset and **sgptr values for the next loop. - */ - cnt = 0; - while (cnt < buflen && sg) { - struct page *page = sg_page(sg) + - ((sg->offset + *offset) >> PAGE_SHIFT); - unsigned int poff = (sg->offset + *offset) & (PAGE_SIZE-1); - unsigned int sglen = sg->length - *offset; - - if (sglen > buflen - cnt) { - - /* Transfer ends within this s-g entry */ - sglen = buflen - cnt; - *offset += sglen; - } else { + sg_miter_start(&miter, sg, nents, dir == FROM_XFER_BUF ? + SG_MITER_FROM_SG: SG_MITER_TO_SG); - /* Transfer continues to next s-g entry */ - *offset = 0; - sg = sg_next(sg); - } + if (!sg_miter_skip(&miter, *offset)) + return cnt; + + while (sg_miter_next(&miter) && cnt < buflen) { + unsigned int len = min(miter.length, buflen - cnt); + + if (dir == FROM_XFER_BUF) + memcpy(buffer + cnt, miter.addr, len); + else + memcpy(miter.addr, buffer + cnt, len); - /* Transfer the data for all the pages in this - * s-g entry. For each page: call kmap(), do the - * transfer, and call kunmap() immediately after. */ - while (sglen > 0) { - unsigned int plen = min(sglen, (unsigned int) - PAGE_SIZE - poff); - unsigned char *ptr = kmap(page); - - if (dir == TO_XFER_BUF) - memcpy(ptr + poff, buffer + cnt, plen); - else - memcpy(buffer + cnt, ptr + poff, plen); - kunmap(page); - - /* Start at the beginning of the next page */ - poff = 0; - ++page; - cnt += plen; - sglen -= plen; + if (*offset + len < miter.piter.sg->length) { + *offset += len; + *sgptr = miter.piter.sg; + } else { + *offset = 0; + *sgptr = sg_next(miter.piter.sg); } + cnt += len; } - *sgptr = sg; + sg_miter_stop(&miter); - /* Return the amount actually transferred */ return cnt; } EXPORT_SYMBOL_GPL(usb_stor_access_xfer_buf); -- cgit v0.10.2 From 103e127d1f8f985e8a662da6537ebc5e08902ee3 Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Wed, 4 Dec 2013 01:42:21 +0400 Subject: usb: hcd: Remove USB phy if needed This adds remove_phy flag to the HCD structure. If the flag is set and if hcd->phy is valid, the phy is shutdown and released whenever usb_add_hcd fails or usb_hcd_remove is called. This can be used by the HCD drivers to auto-remove the external USB phy when it is no longer needed. Signed-off-by: Valentine Barshak Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 6bffb8c..7527c8e 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -44,6 +44,7 @@ #include #include +#include #include "usb.h" @@ -2603,7 +2604,7 @@ int usb_add_hcd(struct usb_hcd *hcd, */ if ((retval = hcd_buffer_create(hcd)) != 0) { dev_dbg(hcd->self.controller, "pool alloc failed\n"); - return retval; + goto err_remove_phy; } if ((retval = usb_register_bus(&hcd->self)) < 0) @@ -2734,6 +2735,12 @@ err_allocate_root_hub: usb_deregister_bus(&hcd->self); err_register_bus: hcd_buffer_destroy(hcd); +err_remove_phy: + if (hcd->remove_phy && hcd->phy) { + usb_phy_shutdown(hcd->phy); + usb_put_phy(hcd->phy); + hcd->phy = NULL; + } return retval; } EXPORT_SYMBOL_GPL(usb_add_hcd); @@ -2806,6 +2813,11 @@ void usb_remove_hcd(struct usb_hcd *hcd) usb_put_dev(hcd->self.root_hub); usb_deregister_bus(&hcd->self); hcd_buffer_destroy(hcd); + if (hcd->remove_phy && hcd->phy) { + usb_phy_shutdown(hcd->phy); + usb_put_phy(hcd->phy); + hcd->phy = NULL; + } } EXPORT_SYMBOL_GPL(usb_remove_hcd); diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index b8aba19..758ce80 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -134,6 +134,7 @@ struct usb_hcd { unsigned rh_registered:1;/* is root hub registered? */ unsigned rh_pollable:1; /* may we poll the root hub? */ unsigned msix_enabled:1; /* driver has MSI-X enabled? */ + unsigned remove_phy:1; /* auto-remove USB phy */ /* The next flag is a stopgap, to be removed when all the HCDs * support the new root-hub polling mechanism. */ -- cgit v0.10.2 From 1ae5799ef63176cc75ec10e545cb65f620a82747 Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Wed, 4 Dec 2013 01:42:22 +0400 Subject: usb: hcd: Initialize USB phy if needed This adds external USB phy support to USB HCD driver that allows to find and initialize external USB phy, bound to the HCD, when the HCD is added. The usb_add_hcd function returns -EPROBE_DEFER if the USB phy, bound to the HCD, is not ready. If no USB phy is bound, the HCD is initialized as usual. Signed-off-by: Valentine Barshak Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 7527c8e..d3a9bcd 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2589,6 +2589,24 @@ int usb_add_hcd(struct usb_hcd *hcd, int retval; struct usb_device *rhdev; + if (IS_ENABLED(CONFIG_USB_PHY) && !hcd->phy) { + struct usb_phy *phy = usb_get_phy_dev(hcd->self.controller, 0); + + if (IS_ERR(phy)) { + retval = PTR_ERR(phy); + if (retval == -EPROBE_DEFER) + return retval; + } else { + retval = usb_phy_init(phy); + if (retval) { + usb_put_phy(phy); + return retval; + } + hcd->phy = phy; + hcd->remove_phy = 1; + } + } + dev_info(hcd->self.controller, "%s\n", hcd->product_desc); /* Keep old behaviour if authorized_default is not in [0, 1]. */ -- cgit v0.10.2 From 0d4e5bee27dc2f3aa2b0a8a2e0313bfcaf4c5389 Mon Sep 17 00:00:00 2001 From: Yijing Wang Date: Thu, 5 Dec 2013 19:21:42 +0800 Subject: uwb: Use dev_is_pci() to check whether it is pci device Use PCI standard marco dev_is_pci() instead of directly compare pci_bus_type to check whether it is pci device. Signed-off-by: Yijing Wang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c index e3ed6ff..88a290f 100644 --- a/drivers/uwb/umc-bus.c +++ b/drivers/uwb/umc-bus.c @@ -85,7 +85,7 @@ int umc_match_pci_id(struct umc_driver *umc_drv, struct umc_dev *umc) const struct pci_device_id *id_table = umc_drv->match_data; struct pci_dev *pci; - if (umc->dev.parent->bus != &pci_bus_type) + if (!dev_is_pci(umc->dev.parent)) return 0; pci = to_pci_dev(umc->dev.parent); diff --git a/include/linux/uwb/umc.h b/include/linux/uwb/umc.h index 891d1d5..ba82f03 100644 --- a/include/linux/uwb/umc.h +++ b/include/linux/uwb/umc.h @@ -143,7 +143,7 @@ int umc_match_pci_id(struct umc_driver *umc_drv, struct umc_dev *umc); static inline struct pci_dev *umc_parent_pci_dev(struct umc_dev *umc_dev) { struct pci_dev *pci_dev = NULL; - if (umc_dev->dev.parent->bus == &pci_bus_type) + if (dev_is_pci(umc_dev->dev.parent)) pci_dev = to_pci_dev(umc_dev->dev.parent); return pci_dev; } -- cgit v0.10.2 From e10e6f433f6f737f29dc1cea83e9a03095ac5c09 Mon Sep 17 00:00:00 2001 From: Yijing Wang Date: Thu, 5 Dec 2013 19:21:32 +0800 Subject: usb: Use dev_is_pci() to check whether it is pci device Use PCI standard marco dev_is_pci() instead of directly compare pci_bus_type to check whether it is pci device. Signed-off-by: Yijing Wang Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 9269782..524cbf2 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -818,7 +818,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) #ifdef CONFIG_PCI /* EHCI 0.96 and later may have "extended capabilities" */ - if (hcd->self.controller->bus == &pci_bus_type) { + if (dev_is_pci(hcd->self.controller)) { struct pci_dev *pdev; u32 offset, cap, cap2; unsigned count = 256/4; -- cgit v0.10.2 From 9058bdc3a8fbfe1a528019466df62635ef1f7a94 Mon Sep 17 00:00:00 2001 From: Seth Archer Brown Date: Thu, 5 Dec 2013 22:59:23 -0500 Subject: Usb: atm: usbatm: fixed a pointer variable format issue Fixed a pointer variable format issue. Signed-off-by: Seth Archer Brown Acked-by: Duncan Sands Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 25a7bfc..dada014 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -170,9 +170,9 @@ struct usbatm_control { static void usbatm_atm_dev_close(struct atm_dev *atm_dev); static int usbatm_atm_open(struct atm_vcc *vcc); static void usbatm_atm_close(struct atm_vcc *vcc); -static int usbatm_atm_ioctl(struct atm_dev *atm_dev, unsigned int cmd, void __user * arg); +static int usbatm_atm_ioctl(struct atm_dev *atm_dev, unsigned int cmd, void __user *arg); static int usbatm_atm_send(struct atm_vcc *vcc, struct sk_buff *skb); -static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t * pos, char *page); +static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page); static struct atmdev_ops usbatm_atm_devops = { .dev_close = usbatm_atm_dev_close, @@ -739,7 +739,7 @@ static void usbatm_atm_dev_close(struct atm_dev *atm_dev) usbatm_put_instance(instance); /* taken in usbatm_atm_init */ } -static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t * pos, char *page) +static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page) { struct usbatm_data *instance = atm_dev->dev_data; int left = *pos; @@ -895,7 +895,7 @@ static void usbatm_atm_close(struct atm_vcc *vcc) } static int usbatm_atm_ioctl(struct atm_dev *atm_dev, unsigned int cmd, - void __user * arg) + void __user *arg) { struct usbatm_data *instance = atm_dev->dev_data; -- cgit v0.10.2 From aeb2c1210d71c00a4b59d343b0a7df6b1059eb89 Mon Sep 17 00:00:00 2001 From: Chris Ruehl Date: Fri, 6 Dec 2013 16:35:12 +0800 Subject: usb: chipidea: Reallocate regmap only if lpm is detected The regmap only needs to reallocate if the hw_read on the CAP register shows lpm is used. Therefore the if() statement check the change. Signed-off-by: Chris Ruehl Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 5d8981c..5075407 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -208,7 +208,8 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base) reg = hw_read(ci, CAP_HCCPARAMS, HCCPARAMS_LEN) >> __ffs(HCCPARAMS_LEN); ci->hw_bank.lpm = reg; - hw_alloc_regmap(ci, !!reg); + if (reg) + hw_alloc_regmap(ci, !!reg); ci->hw_bank.size = ci->hw_bank.op - ci->hw_bank.abs; ci->hw_bank.size += OP_LAST; ci->hw_bank.size /= sizeof(u32); -- cgit v0.10.2 From 73de93440186c595a031046e266f6caaac106aa0 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 6 Dec 2013 16:35:13 +0800 Subject: usb: chipidea: imx: avoid unnecessary probe defer every time The ci_hdrc_imx's probe needs usbmisc_imx to be loadded beforehand, so it is better we load usbmisc_imx first. Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index a99d980..7345d21 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -17,5 +17,5 @@ ifneq ($(CONFIG_PCI),) endif ifneq ($(CONFIG_OF),) - obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc_imx.o usbmisc_imx.o + obj-$(CONFIG_USB_CHIPIDEA) += usbmisc_imx.o ci_hdrc_imx.o endif -- cgit v0.10.2 From 9f90e111a6abc472ca9aed9b4a4d27d9a22ecbd3 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Fri, 6 Dec 2013 16:35:14 +0800 Subject: usb: chipidea: usbmisc: Add support for i.MX27/i.MX31 CPUs This adds i.MX27 and i.MX31 as the next user of the usbmisc driver. Tested-by: Chris Ruehl Signed-off-by: Alexander Shiyan Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 8a1094b..4381c5a6 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -21,6 +21,10 @@ #define MX25_USB_PHY_CTRL_OFFSET 0x08 #define MX25_BM_EXTERNAL_VBUS_DIVIDER BIT(23) +#define MX27_H1_PM_BIT BIT(8) +#define MX27_H2_PM_BIT BIT(16) +#define MX27_OTG_PM_BIT BIT(24) + #define MX53_USB_OTG_PHY_CTRL_0_OFFSET 0x08 #define MX53_USB_UH2_CTRL_OFFSET 0x14 #define MX53_USB_UH3_CTRL_OFFSET 0x18 @@ -68,6 +72,36 @@ static int usbmisc_imx25_post(struct imx_usbmisc_data *data) return 0; } +static int usbmisc_imx27_init(struct imx_usbmisc_data *data) +{ + unsigned long flags; + u32 val; + + switch (data->index) { + case 0: + val = MX27_OTG_PM_BIT; + break; + case 1: + val = MX27_H1_PM_BIT; + break; + case 2: + val = MX27_H2_PM_BIT; + break; + default: + return -EINVAL; + }; + + spin_lock_irqsave(&usbmisc->lock, flags); + if (data->disable_oc) + val = readl(usbmisc->base) | val; + else + val = readl(usbmisc->base) & ~val; + writel(val, usbmisc->base); + spin_unlock_irqrestore(&usbmisc->lock, flags); + + return 0; +} + static int usbmisc_imx53_init(struct imx_usbmisc_data *data) { void __iomem *reg = NULL; @@ -128,6 +162,10 @@ static const struct usbmisc_ops imx25_usbmisc_ops = { .post = usbmisc_imx25_post, }; +static const struct usbmisc_ops imx27_usbmisc_ops = { + .init = usbmisc_imx27_init, +}; + static const struct usbmisc_ops imx53_usbmisc_ops = { .init = usbmisc_imx53_init, }; @@ -162,6 +200,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = { .data = &imx25_usbmisc_ops, }, { + .compatible = "fsl,imx27-usbmisc", + .data = &imx27_usbmisc_ops, + }, + { .compatible = "fsl,imx53-usbmisc", .data = &imx53_usbmisc_ops, }, -- cgit v0.10.2 From c4962e03f4bbad63c8356e9466db6e0df4144ed9 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Fri, 6 Dec 2013 16:35:15 +0800 Subject: usb: chipidea: usbmisc: Add support for i.MX51 CPU This adds i.MX51 as the next user of the usbmisc driver. Functionality is similar to i.MX53, so at this stage simply reuse existing i.MX53 calls. Signed-off-by: Alexander Shiyan Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 4381c5a6..cd061ab 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -204,6 +204,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = { .data = &imx27_usbmisc_ops, }, { + .compatible = "fsl,imx51-usbmisc", + .data = &imx53_usbmisc_ops, + }, + { .compatible = "fsl,imx53-usbmisc", .data = &imx53_usbmisc_ops, }, -- cgit v0.10.2 From 3c9740a117d40a74412775b5d3fe2b88a7635a0e Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Tue, 5 Nov 2013 10:46:02 +0800 Subject: usb: hcd: move controller wakeup setting initialization to individual driver Individual controller driver has different requirement for wakeup setting, so move it from core to itself. In order to align with current etting the default wakeup setting is enabled (except for chipidea host). Pass compile test with below commands: make O=outout/all allmodconfig make -j$CPU_NUM O=outout/all drivers/usb Signed-off-by: Peter Chen Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c index 3cfd2d5..078cd91 100644 --- a/drivers/staging/dwc2/hcd.c +++ b/drivers/staging/dwc2/hcd.c @@ -2921,6 +2921,8 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq, if (retval < 0) goto error3; + device_wakeup_enable(hcd->self.controller); + dwc2_hcd_dump_state(hsotg); dwc2_enable_global_interrupts(hsotg); diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c index d118952..47e0a91 100644 --- a/drivers/staging/octeon-usb/octeon-hcd.c +++ b/drivers/staging/octeon-usb/octeon-hcd.c @@ -3498,6 +3498,7 @@ static int octeon_usb_driver_probe(struct device *dev) kfree(hcd); return -1; } + device_wakeup_enable(hcd->self.controller); dev_dbg(dev, "Registered HCD for port %d on irq %d\n", usb_num, irq); diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c index d9c43c3..efaf26f 100644 --- a/drivers/staging/ozwpan/ozhcd.c +++ b/drivers/staging/ozwpan/ozhcd.c @@ -2270,6 +2270,8 @@ static int oz_plat_probe(struct platform_device *dev) usb_put_hcd(hcd); return -1; } + device_wakeup_enable(hcd->self.controller); + spin_lock_bh(&g_hcdlock); g_ozhcd = ozhcd; spin_unlock_bh(&g_hcdlock); diff --git a/drivers/usb/c67x00/c67x00-hcd.c b/drivers/usb/c67x00/c67x00-hcd.c index 75e47b8..20ec4ee 100644 --- a/drivers/usb/c67x00/c67x00-hcd.c +++ b/drivers/usb/c67x00/c67x00-hcd.c @@ -384,6 +384,8 @@ int c67x00_hcd_probe(struct c67x00_sie *sie) goto err2; } + device_wakeup_enable(hcd->self.controller); + spin_lock_irqsave(&sie->lock, flags); sie->private_data = c67x00; sie->irq = c67x00_hcd_irq; diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index dfe9d0f..d59d993 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -282,6 +282,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) if (retval != 0) goto unmap_registers; + device_wakeup_enable(hcd->self.controller); if (pci_dev_run_wake(dev)) pm_runtime_put_noidle(&dev->dev); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index d3a9bcd..6297c9e 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2712,12 +2712,6 @@ int usb_add_hcd(struct usb_hcd *hcd, if (hcd->uses_new_polling && HCD_POLL_RH(hcd)) usb_hcd_poll_rh_status(hcd); - /* - * Host controllers don't generate their own wakeup requests; - * they only forward requests from the root hub. Therefore - * controllers should always be enabled for remote wakeup. - */ - device_wakeup_enable(hcd->self.controller); return retval; error_create_attr_group: diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 284f841..ec9f7b7 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -153,6 +153,7 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval) goto fail_add_hcd; + device_wakeup_enable(hcd->self.controller); return retval; diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c index e97c198..d1d8c47 100644 --- a/drivers/usb/host/ehci-exynos.c +++ b/drivers/usb/host/ehci-exynos.c @@ -166,6 +166,7 @@ skip_phy: dev_err(&pdev->dev, "Failed to add USB HCD\n"); goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); platform_set_drvdata(pdev, hcd); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 87a7426..854a68f 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -138,6 +138,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval != 0) goto err4; + device_wakeup_enable(hcd->self.controller); #ifdef CONFIG_USB_OTG if (pdata->operating_mode == FSL_USB2_DR_OTG) { diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index b52a66c..054792c 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -140,6 +140,7 @@ static int ehci_hcd_grlib_probe(struct platform_device *op) if (rv) goto err_ioremap; + device_wakeup_enable(hcd->self.controller); return 0; err_ioremap: diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 6e8afca..bd61612 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -257,6 +257,7 @@ static int mv_ehci_probe(struct platform_device *pdev) "failed to add hcd with err %d\n", retval); goto err_set_vbus; } + device_wakeup_enable(hcd->self.controller); } if (pdata->private_init) diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index 0528dc4..dbe5e4e 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -155,6 +155,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) if (ret) goto err_add; + device_wakeup_enable(hcd->self.controller); return 0; err_add: diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index 4c528b2..c4ad7ed 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -158,6 +158,7 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret); goto err3; } + device_wakeup_enable(hcd->self.controller); platform_set_drvdata(pdev, hcd); diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 6fa82d6..a24720b 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -215,6 +215,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) dev_err(dev, "failed to add hcd with err %d\n", ret); goto err_pm_runtime; } + device_wakeup_enable(hcd->self.controller); /* * Bring PHYs out of reset for non PHY modes. diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 2ba7673..aa8b92b 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -252,6 +252,7 @@ static int ehci_orion_drv_probe(struct platform_device *pdev) if (err) goto err4; + device_wakeup_enable(hcd->self.controller); return 0; err4: diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 7f30b71..01536cf 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -132,6 +132,7 @@ static int ehci_platform_probe(struct platform_device *dev) if (err) goto err_put_hcd; + device_wakeup_enable(hcd->self.controller); platform_set_drvdata(dev, hcd); return err; diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c index 893b707..af3974a 100644 --- a/drivers/usb/host/ehci-pmcmsp.c +++ b/drivers/usb/host/ehci-pmcmsp.c @@ -210,8 +210,10 @@ int usb_hcd_msp_probe(const struct hc_driver *driver, retval = usb_add_hcd(hcd, res->start, IRQF_SHARED); - if (retval == 0) + if (retval == 0) { + device_wakeup_enable(hcd->self.controller); return 0; + } usb_remove_hcd(hcd); err3: diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 875d2fc..b0965eb 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -169,6 +169,7 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op) if (rv) goto err_ioremap; + device_wakeup_enable(hcd->self.controller); return 0; err_ioremap: diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 8188542..7934ff9 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -189,6 +189,7 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev) goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); return result; fail_add_hcd: diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c index 8a73449..cf12676 100644 --- a/drivers/usb/host/ehci-sead3.c +++ b/drivers/usb/host/ehci-sead3.c @@ -126,6 +126,7 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev) IRQF_SHARED); if (ret == 0) { platform_set_drvdata(pdev, hcd); + device_wakeup_enable(hcd->self.controller); return ret; } diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index dc899eb..9b9b9f5 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -151,6 +151,7 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to add hcd"); goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); priv->hcd = hcd; platform_set_drvdata(pdev, priv); diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c index ee6f9ff..8bd915b 100644 --- a/drivers/usb/host/ehci-spear.c +++ b/drivers/usb/host/ehci-spear.c @@ -130,6 +130,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev) if (retval) goto err_stop_ehci; + device_wakeup_enable(hcd->self.controller); return retval; err_stop_ehci: diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index b9fd039..a8f4471 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -455,6 +455,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to add USB HCD\n"); goto cleanup_otg_set_host; } + device_wakeup_enable(hcd->self.controller); return err; diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c index 67026ff..f3713d3 100644 --- a/drivers/usb/host/ehci-tilegx.c +++ b/drivers/usb/host/ehci-tilegx.c @@ -170,6 +170,7 @@ static int ehci_hcd_tilegx_drv_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, pdata->irq, IRQF_SHARED); if (ret == 0) { platform_set_drvdata(pdev, hcd); + device_wakeup_enable(hcd->self.controller); return ret; } diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index cdad843..12c1a56 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -94,6 +94,7 @@ static int usb_w90x900_probe(const struct hc_driver *driver, if (retval != 0) goto err4; + device_wakeup_enable(hcd->self.controller); return retval; err4: iounmap(hcd->regs); diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index 95979f9..3cd2efa 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -191,8 +191,10 @@ static int ehci_hcd_xilinx_of_probe(struct platform_device *op) ehci->caps = hcd->regs + 0x100; rv = usb_add_hcd(hcd, irq, 0); - if (rv == 0) + if (rv == 0) { + device_wakeup_enable(hcd->self.controller); return 0; + } err_irq: usb_put_hcd(hcd); diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c index 0551c0a..1cf68ea 100644 --- a/drivers/usb/host/fhci-hcd.c +++ b/drivers/usb/host/fhci-hcd.c @@ -754,6 +754,8 @@ static int of_fhci_probe(struct platform_device *ofdev) if (ret < 0) goto err_add_hcd; + device_wakeup_enable(hcd->self.controller); + fhci_dfs_create(fhci); return 0; diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 97d6939..98a89d1 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -5889,6 +5889,7 @@ static int fotg210_hcd_probe(struct platform_device *pdev) dev_err(dev, "failed to add hcd with err %d\n", retval); goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); return retval; diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index 9ea85b6..ba94990 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -5798,6 +5798,7 @@ static int fusbh200_hcd_probe(struct platform_device *pdev) dev_err(dev, "failed to add hcd with err %d\n", retval); goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); return retval; diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index a4ec9e6..7fd3f9b 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -791,6 +791,7 @@ static int hwahc_probe(struct usb_interface *usb_iface, dev_err(dev, "Cannot add HCD: %d\n", result); goto error_add_hcd; } + device_wakeup_enable(usb_hcd->self.controller); result = wusbhc_b_create(&hwahc->wusbhc); if (result < 0) { dev_err(dev, "Cannot setup phase B of WUSBHC: %d\n", result); diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index 0122624..207bad9 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -1910,6 +1910,7 @@ static int imx21_probe(struct platform_device *pdev) dev_err(imx21->dev, "usb_add_hcd() returned %d\n", ret); goto failed_add_hcd; } + device_wakeup_enable(hcd->self.controller); return 0; diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 7722ec6..2740f65 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1645,6 +1645,8 @@ static int isp116x_probe(struct platform_device *pdev) if (ret) goto err6; + device_wakeup_enable(hcd->self.controller); + ret = create_debug_file(isp116x); if (ret) { ERR("Couldn't create debugfs entry\n"); diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index cd94b10..34645ae 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2746,6 +2746,8 @@ static int isp1362_probe(struct platform_device *pdev) retval = usb_add_hcd(hcd, irq, irq_flags | IRQF_SHARED); if (retval != 0) goto err6; + device_wakeup_enable(hcd->self.controller); + pr_info("%s, irq %d\n", hcd->product_desc, irq); create_debug_file(isp1362_hcd); diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 2facee5..51a0ae9 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -2250,6 +2250,7 @@ struct usb_hcd *isp1760_register(phys_addr_t res_start, resource_size_t res_len, ret = usb_add_hcd(hcd, irq, irqflags); if (ret) goto err_unmap; + device_wakeup_enable(hcd->self.controller); return hcd; diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index cc9462f..29d2093 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -200,8 +200,10 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, at91_start_hc(pdev); retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED); - if (retval == 0) + if (retval == 0) { + device_wakeup_enable(hcd->self.controller); return retval; + } /* Error handling */ at91_stop_hc(pdev); diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index 71dbd85..f0fe0d2 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -348,6 +348,8 @@ static int usb_hcd_da8xx_probe(const struct hc_driver *driver, if (error) goto err4; + device_wakeup_enable(hcd->self.controller); + if (hub->ocic_notify) { error = hub->ocic_notify(ohci_da8xx_ocic_handler); if (!error) diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 9897d70..68588d8 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -146,6 +146,7 @@ skip_phy: dev_err(&pdev->dev, "Failed to add USB HCD\n"); goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); return 0; fail_add_hcd: diff --git a/drivers/usb/host/ohci-jz4740.c b/drivers/usb/host/ohci-jz4740.c index d4ef539..efe31f3 100644 --- a/drivers/usb/host/ohci-jz4740.c +++ b/drivers/usb/host/ohci-jz4740.c @@ -217,6 +217,7 @@ static int jz4740_ohci_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to add hcd: %d\n", ret); goto err_disable; } + device_wakeup_enable(hcd->self.controller); return 0; diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index e99db8a..719f28e 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -274,8 +274,10 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq); ret = usb_add_hcd(hcd, irq, 0); - if (ret == 0) + if (ret == 0) { + device_wakeup_enable(hcd->self.controller); return ret; + } ohci_nxp_stop_hc(); fail_resource: diff --git a/drivers/usb/host/ohci-octeon.c b/drivers/usb/host/ohci-octeon.c index 6c16dce..49b220d 100644 --- a/drivers/usb/host/ohci-octeon.c +++ b/drivers/usb/host/ohci-octeon.c @@ -171,6 +171,8 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev) goto err3; } + device_wakeup_enable(hcd->self.controller); + platform_set_drvdata(pdev, hcd); return 0; diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index f253214..a44a4fe 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -367,6 +367,7 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, if (retval) goto err3; + device_wakeup_enable(hcd->self.controller); return 0; err3: iounmap(hcd->regs); diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index 2145741..ec15aeb 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -130,6 +130,7 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) dev_dbg(dev, "failed to add hcd with err %d\n", ret); goto err_add_hcd; } + device_wakeup_enable(hcd->self.controller); return 0; diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index f351ff5..68f674c 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -108,6 +108,8 @@ static int ohci_platform_probe(struct platform_device *dev) if (err) goto err_put_hcd; + device_wakeup_enable(hcd->self.controller); + platform_set_drvdata(dev, hcd); return err; diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 81f3eba..83e33d4 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -147,8 +147,10 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op) ohci_hcd_init(ohci); rv = usb_add_hcd(hcd, irq, 0); - if (rv == 0) + if (rv == 0) { + device_wakeup_enable(hcd->self.controller); return 0; + } /* by now, 440epx is known to show usb_23 erratum */ np = of_find_compatible_node(NULL, NULL, "ibm,usb-ehci-440epx"); diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index 7d35cd9..71d8bc4 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -173,6 +173,7 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev) goto fail_add_hcd; } + device_wakeup_enable(hcd->self.controller); return result; fail_add_hcd: diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index e89ac4d..5343ecfd 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -442,8 +442,10 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device ohci->num_ports = 3; retval = usb_add_hcd(hcd, irq, 0); - if (retval == 0) + if (retval == 0) { + device_wakeup_enable(hcd->self.controller); return retval; + } pxa27x_stop_hc(pxa_ohci, &pdev->dev); err3: diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index 83cd1dc..ff7c8f1 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -395,6 +395,7 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver, if (retval != 0) goto err_ioremap; + device_wakeup_enable(hcd->self.controller); return 0; err_ioremap: diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index aa9e127..2ac266d 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -211,8 +211,10 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev) goto err2; ret = usb_add_hcd(hcd, dev->irq[1], 0); - if (ret == 0) + if (ret == 0) { + device_wakeup_enable(hcd->self.controller); return ret; + } sa1111_stop_hc(dev); err2: diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index 2a5de5f..4e81c80 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -168,6 +168,7 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev) retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval) goto err5; + device_wakeup_enable(hcd->self.controller); /* enable power and unmask interrupts */ diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index e418c19..4cb98ab 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -103,8 +103,10 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev) ohci = hcd_to_ohci(hcd); retval = usb_add_hcd(hcd, platform_get_irq(pdev, 0), 0); - if (retval == 0) + if (retval == 0) { + device_wakeup_enable(hcd->self.controller); return retval; + } clk_disable_unprepare(sohci_p->clk); err_put_hcd: diff --git a/drivers/usb/host/ohci-tilegx.c b/drivers/usb/host/ohci-tilegx.c index 22540ab..0b183e0 100644 --- a/drivers/usb/host/ohci-tilegx.c +++ b/drivers/usb/host/ohci-tilegx.c @@ -159,6 +159,7 @@ static int ohci_hcd_tilegx_drv_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, pdata->irq, IRQF_SHARED); if (ret == 0) { platform_set_drvdata(pdev, hcd); + device_wakeup_enable(hcd->self.controller); return ret; } diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index ecb09a5..9c44093 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -250,6 +250,7 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev) if (ret) goto err_add_hcd; + device_wakeup_enable(hcd->self.controller); if (ret == 0) return ret; diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index 4a05148..778eeaf 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -3751,6 +3751,7 @@ static struct usb_hcd *oxu_create(struct platform_device *pdev, if (ret < 0) return ERR_PTR(ret); + device_wakeup_enable(hcd->self.controller); return hcd; } diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 3bddfcf..47b1322 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2514,6 +2514,7 @@ static int r8a66597_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to add hcd\n"); goto clean_up3; } + device_wakeup_enable(hcd->self.controller); return 0; diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 79620c3..0115e7f 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1732,6 +1732,8 @@ sl811h_probe(struct platform_device *dev) if (retval != 0) goto err6; + device_wakeup_enable(hcd->self.controller); + create_debug_file(sl811); return retval; diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 46236e9..c067175 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3133,6 +3133,7 @@ static int u132_probe(struct platform_device *pdev) u132_u132_put_kref(u132); return retval; } else { + device_wakeup_enable(hcd->self.controller); u132_monitor_queue_work(u132, 100); return 0; } diff --git a/drivers/usb/host/uhci-grlib.c b/drivers/usb/host/uhci-grlib.c index 53c23ff..ab25dc3 100644 --- a/drivers/usb/host/uhci-grlib.c +++ b/drivers/usb/host/uhci-grlib.c @@ -141,6 +141,7 @@ static int uhci_hcd_grlib_probe(struct platform_device *op) if (rv) goto err_uhci; + device_wakeup_enable(hcd->self.controller); return 0; err_uhci: diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index 3003fef..44e6c9d 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -108,6 +108,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev) if (ret) goto err_uhci; + device_wakeup_enable(hcd->self.controller); return 0; err_uhci: diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c index 1b0888f..d7b363a 100644 --- a/drivers/usb/host/whci/hcd.c +++ b/drivers/usb/host/whci/hcd.c @@ -293,6 +293,7 @@ static int whc_probe(struct umc_dev *umc) dev_err(dev, "cannot add HCD: %d\n", ret); goto error_usb_add_hcd; } + device_wakeup_enable(usb_hcd->self.controller); ret = wusbhc_b_create(wusbhc); if (ret) { diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index d9c169f..9d29aa1 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -139,6 +139,7 @@ static int xhci_plat_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) goto unmap_registers; + device_wakeup_enable(hcd->self.controller); /* USB 2.0 roothub is stored in the platform_device now. */ hcd = platform_get_drvdata(pdev); diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 6582a20..e208375 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2657,6 +2657,7 @@ int musb_host_setup(struct musb *musb, int power_budget) if (ret < 0) return ret; + device_wakeup_enable(hcd->self.controller); return 0; } diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c index e9d4cd9..37752832 100644 --- a/drivers/usb/phy/phy-msm-usb.c +++ b/drivers/usb/phy/phy-msm-usb.c @@ -669,6 +669,7 @@ static void msm_otg_start_host(struct usb_phy *phy, int on) pdata->setup_gpio(OTG_STATE_A_HOST); #ifdef CONFIG_USB usb_add_hcd(hcd, hcd->irq, IRQF_SHARED); + device_wakeup_enable(hcd->self.controller); #endif } else { dev_dbg(phy->dev, "host off\n"); diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c index 98f6ac6..44f316e 100644 --- a/drivers/usb/phy/phy-mv-usb.c +++ b/drivers/usb/phy/phy-mv-usb.c @@ -213,10 +213,12 @@ static void mv_otg_start_host(struct mv_otg *mvotg, int on) hcd = bus_to_hcd(otg->host); - if (on) + if (on) { usb_add_hcd(hcd, hcd->irq, IRQF_SHARED); - else + device_wakeup_enable(hcd->self.controller); + } else { usb_remove_hcd(hcd); + } #endif /* CONFIG_USB */ } diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index e40f565..10e1ded 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -1469,6 +1469,7 @@ static int usbhsh_start(struct usbhs_priv *priv) ret = usb_add_hcd(hcd, 0, 0); if (ret < 0) return 0; + device_wakeup_enable(hcd->self.controller); /* * pipe initialize and enable DCP -- cgit v0.10.2 From e0e6a356a0b41375b729c511caa99d3ec019640e Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Fri, 6 Dec 2013 16:09:27 +0100 Subject: Revert "USB: quirks: add touchscreen that is dazzeled by remote wakeup" This reverts commit 614ced91fc6fbb5a1cdd12f0f1b6c9197d9f1350. The units on this was seen were prototypes and the issue is not seen on younger units. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 12924db..8f37063 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -98,9 +98,6 @@ static const struct usb_device_id usb_quirk_list[] = { /* Alcor Micro Corp. Hub */ { USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME }, - /* MicroTouch Systems touchscreen */ - { USB_DEVICE(0x0596, 0x051e), .driver_info = USB_QUIRK_RESET_RESUME }, - /* appletouch */ { USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME }, -- cgit v0.10.2 From c6d7641470fed467777a886c64329fff8f5abf0b Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Sat, 7 Dec 2013 11:54:19 -0600 Subject: usb: dwc3: omap: remove unnecessary lock the lock was only taken inside the hardirq handler, which runs with IRQs disabled. There's no chance of any race condition happening, even on SMP machines. It's safe to remove that spinlock. Acked-by: Santosh Shilimkar Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index daab0ad..b269dbd 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include @@ -120,9 +119,6 @@ #define USBOTGSS_UTMI_OTG_STATUS_VBUSVALID (1 << 1) struct dwc3_omap { - /* device lock */ - spinlock_t lock; - struct device *dev; int irq; @@ -280,8 +276,6 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap) struct dwc3_omap *omap = _omap; u32 reg; - spin_lock(&omap->lock); - reg = dwc3_omap_read_irqmisc_status(omap); if (reg & USBOTGSS_IRQMISC_DMADISABLECLR) { @@ -322,8 +316,6 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap) dwc3_omap_write_irq0_status(omap, reg); - spin_unlock(&omap->lock); - return IRQ_HANDLED; } @@ -449,8 +441,6 @@ static int dwc3_omap_probe(struct platform_device *pdev) } } - spin_lock_init(&omap->lock); - omap->dev = dev; omap->irq = irq; omap->base = base; -- cgit v0.10.2 From c3e5d2985ef720cbbdc63546a5c545ac4450d96e Mon Sep 17 00:00:00 2001 From: Valentine Barshak Date: Mon, 9 Dec 2013 23:40:33 +0400 Subject: usb: phy: r-car gen2: use usb_add_phy_dev Use usb_add_phy_dev instead of usb_add_phy, so that devices can be bound to the phy. This is needed to set up USB phy for some internal PCI USB host controllers on R-Car Gen2. Signed-off-by: Valentine Barshak Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-rcar-gen2-usb.c b/drivers/usb/phy/phy-rcar-gen2-usb.c index a99a695..9f57091 100644 --- a/drivers/usb/phy/phy-rcar-gen2-usb.c +++ b/drivers/usb/phy/phy-rcar-gen2-usb.c @@ -213,7 +213,7 @@ static int rcar_gen2_usb_phy_probe(struct platform_device *pdev) priv->phy.shutdown = rcar_gen2_usb_phy_shutdown; priv->phy.set_suspend = rcar_gen2_usb_phy_set_suspend; - retval = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2); + retval = usb_add_phy_dev(&priv->phy); if (retval < 0) { dev_err(dev, "Failed to add USB phy\n"); return retval; -- cgit v0.10.2 From 7005234c18f233d3613b09e9ce4b6ce6977bf246 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 9 Dec 2013 13:10:41 -0600 Subject: usb: wusbcore: fix short transfers If a URB is broken up into multiple transfer segments and a short transfer occurs in any segment other than the last, the URB will currently get stuck in the driver forever. This patch adds a check for a short transfer and cleans up any pending segments so the URB can complete properly. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index a88b8c6..673ad80 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -1993,7 +1993,7 @@ static int wa_xfer_status_to_errno(u8 status) * the xfer will complete cleanly. */ static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer, - struct wa_seg *incoming_seg) + struct wa_seg *incoming_seg, enum wa_seg_status status) { int index; struct wa_rpipe *rpipe = xfer->ep->hcpriv; @@ -2015,7 +2015,7 @@ static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer, */ case WA_SEG_DELAYED: xfer->segs_done++; - current_seg->status = incoming_seg->status; + current_seg->status = status; break; case WA_SEG_ABORTED: break; @@ -2028,6 +2028,58 @@ static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer, } } +/* Populate the wa->buf_in_urb based on the current transfer state. */ +static int wa_populate_buf_in_urb(struct wahc *wa, struct wa_xfer *xfer, + unsigned int seg_idx, unsigned int bytes_transferred) +{ + int result = 0; + struct wa_seg *seg = xfer->seg[seg_idx]; + + BUG_ON(wa->buf_in_urb->status == -EINPROGRESS); + /* this should always be 0 before a resubmit. */ + wa->buf_in_urb->num_mapped_sgs = 0; + + if (xfer->is_dma) { + wa->buf_in_urb->transfer_dma = xfer->urb->transfer_dma + + (seg_idx * xfer->seg_size); + wa->buf_in_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + wa->buf_in_urb->transfer_buffer = NULL; + wa->buf_in_urb->sg = NULL; + wa->buf_in_urb->num_sgs = 0; + } else { + /* do buffer or SG processing. */ + wa->buf_in_urb->transfer_flags &= ~URB_NO_TRANSFER_DMA_MAP; + + if (xfer->urb->transfer_buffer) { + wa->buf_in_urb->transfer_buffer = + xfer->urb->transfer_buffer + + (seg_idx * xfer->seg_size); + wa->buf_in_urb->sg = NULL; + wa->buf_in_urb->num_sgs = 0; + } else { + /* allocate an SG list to store seg_size bytes + and copy the subset of the xfer->urb->sg + that matches the buffer subset we are + about to read. */ + wa->buf_in_urb->sg = wa_xfer_create_subset_sg( + xfer->urb->sg, + seg_idx * xfer->seg_size, + bytes_transferred, + &(wa->buf_in_urb->num_sgs)); + + if (!(wa->buf_in_urb->sg)) { + wa->buf_in_urb->num_sgs = 0; + result = -ENOMEM; + } + wa->buf_in_urb->transfer_buffer = NULL; + } + } + wa->buf_in_urb->transfer_buffer_length = bytes_transferred; + wa->buf_in_urb->context = seg; + + return result; +} + /* * Process a xfer result completion message * @@ -2041,12 +2093,13 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer, int result; struct device *dev = &wa->usb_iface->dev; unsigned long flags; - u8 seg_idx; + unsigned int seg_idx; struct wa_seg *seg; struct wa_rpipe *rpipe; unsigned done = 0; u8 usb_status; unsigned rpipe_ready = 0; + unsigned bytes_transferred = le32_to_cpu(xfer_result->dwTransferLength); spin_lock_irqsave(&xfer->lock, flags); seg_idx = xfer_result->bTransferSegment & 0x7f; @@ -2079,66 +2132,33 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer, /* FIXME: we ignore warnings, tally them for stats */ if (usb_status & 0x40) /* Warning?... */ usb_status = 0; /* ... pass */ + /* + * If the last segment bit is set, complete the remaining segments. + * When the current segment is completed, either in wa_buf_in_cb for + * transfers with data or below for no data, the xfer will complete. + */ + if (xfer_result->bTransferSegment & 0x80) + wa_complete_remaining_xfer_segs(xfer, seg, WA_SEG_DONE); if (usb_pipeisoc(xfer->urb->pipe)) { /* set up WA state to read the isoc packet status next. */ wa->dti_isoc_xfer_in_progress = wa_xfer_id(xfer); wa->dti_isoc_xfer_seg = seg_idx; wa->dti_state = WA_DTI_ISOC_PACKET_STATUS_PENDING; - } else if (xfer->is_inbound) { /* IN data phase: read to buffer */ + } else if ((xfer->is_inbound) + && (bytes_transferred > 0)) { + /* IN data phase: read to buffer */ seg->status = WA_SEG_DTI_PENDING; - BUG_ON(wa->buf_in_urb->status == -EINPROGRESS); - /* this should always be 0 before a resubmit. */ - wa->buf_in_urb->num_mapped_sgs = 0; - - if (xfer->is_dma) { - wa->buf_in_urb->transfer_dma = - xfer->urb->transfer_dma - + (seg_idx * xfer->seg_size); - wa->buf_in_urb->transfer_flags - |= URB_NO_TRANSFER_DMA_MAP; - wa->buf_in_urb->transfer_buffer = NULL; - wa->buf_in_urb->sg = NULL; - wa->buf_in_urb->num_sgs = 0; - } else { - /* do buffer or SG processing. */ - wa->buf_in_urb->transfer_flags - &= ~URB_NO_TRANSFER_DMA_MAP; - - if (xfer->urb->transfer_buffer) { - wa->buf_in_urb->transfer_buffer = - xfer->urb->transfer_buffer - + (seg_idx * xfer->seg_size); - wa->buf_in_urb->sg = NULL; - wa->buf_in_urb->num_sgs = 0; - } else { - /* allocate an SG list to store seg_size bytes - and copy the subset of the xfer->urb->sg - that matches the buffer subset we are - about to read. */ - wa->buf_in_urb->sg = wa_xfer_create_subset_sg( - xfer->urb->sg, - seg_idx * xfer->seg_size, - le32_to_cpu( - xfer_result->dwTransferLength), - &(wa->buf_in_urb->num_sgs)); - - if (!(wa->buf_in_urb->sg)) { - wa->buf_in_urb->num_sgs = 0; - goto error_sg_alloc; - } - wa->buf_in_urb->transfer_buffer = NULL; - } - } - wa->buf_in_urb->transfer_buffer_length = - le32_to_cpu(xfer_result->dwTransferLength); - wa->buf_in_urb->context = seg; + result = wa_populate_buf_in_urb(wa, xfer, seg_idx, + bytes_transferred); + if (result < 0) + goto error_buf_in_populate; result = usb_submit_urb(wa->buf_in_urb, GFP_ATOMIC); if (result < 0) goto error_submit_buf_in; } else { - /* OUT data phase, complete it -- */ + /* OUT data phase or no data, complete it -- */ seg->status = WA_SEG_DONE; - seg->result = le32_to_cpu(xfer_result->dwTransferLength); + seg->result = bytes_transferred; xfer->segs_done++; rpipe_ready = rpipe_avail_inc(rpipe); done = __wa_xfer_is_done(xfer); @@ -2162,13 +2182,13 @@ error_submit_buf_in: seg->result = result; kfree(wa->buf_in_urb->sg); wa->buf_in_urb->sg = NULL; -error_sg_alloc: +error_buf_in_populate: __wa_xfer_abort(xfer); seg->status = WA_SEG_ERROR; error_complete: xfer->segs_done++; rpipe_ready = rpipe_avail_inc(rpipe); - wa_complete_remaining_xfer_segs(xfer, seg); + wa_complete_remaining_xfer_segs(xfer, seg, seg->status); done = __wa_xfer_is_done(xfer); /* * queue work item to clear STALL for control endpoints. -- cgit v0.10.2 From a2cd612dc9be768b516541b2164c843849bc3bb3 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 9 Dec 2013 13:45:43 -0600 Subject: usb: core: allow isoc URBs for wireless devices with an interval < 6 In usb_submit_urb, do not fail if an isoc URB for a wireless USB device has an interval < 6. Per WUSB spec, isoc endpoints can support values from 1-16. Valid values for interrupt URBs for wireless USB devices are still 6-16. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index e622083..07c58af 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -492,9 +492,9 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) /* too small? */ switch (dev->speed) { case USB_SPEED_WIRELESS: - if (urb->interval < 6) + if ((urb->interval < 6) + && (xfertype == USB_ENDPOINT_XFER_INT)) return -EINVAL; - break; default: if (urb->interval <= 0) return -EINVAL; -- cgit v0.10.2 From 83e83ecb79a8225e79bc8e54e9aff3e0e27658a2 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 9 Dec 2013 13:40:29 -0600 Subject: usb: core: get config and string descriptors for unauthorized devices There is no need to skip querying the config and string descriptors for unauthorized WUSB devices when usb_new_device is called. It is allowed by WUSB spec. The only action that needs to be delayed until authorization time is the set config. This change allows user mode tools to see the config and string descriptors earlier in enumeration which is needed for some WUSB devices to function properly on Android systems. It also reduces the amount of divergent code paths needed for WUSB devices. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index a6b2cab..548d199 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -651,10 +651,6 @@ void usb_destroy_configuration(struct usb_device *dev) * * hub-only!! ... and only in reset path, or usb_new_device() * (used by real hubs and virtual root hubs) - * - * NOTE: if this is a WUSB device and is not authorized, we skip the - * whole thing. A non-authorized USB device has no - * configurations. */ int usb_get_configuration(struct usb_device *dev) { @@ -666,8 +662,6 @@ int usb_get_configuration(struct usb_device *dev) struct usb_config_descriptor *desc; cfgno = 0; - if (dev->authorized == 0) /* Not really an error */ - goto out_not_authorized; result = -ENOMEM; if (ncfg > USB_MAXCONFIG) { dev_warn(ddev, "too many configurations: %d, " @@ -751,7 +745,6 @@ int usb_get_configuration(struct usb_device *dev) err: kfree(desc); -out_not_authorized: dev->descriptor.bNumConfigurations = cfgno; err2: if (result == -ENOMEM) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a7c04e2..32e1035 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2235,17 +2235,13 @@ static int usb_enumerate_device(struct usb_device *udev) return err; } } - if (udev->wusb == 1 && udev->authorized == 0) { - udev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL); - udev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL); - udev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL); - } else { - /* read the standard strings and cache them if present */ - udev->product = usb_cache_string(udev, udev->descriptor.iProduct); - udev->manufacturer = usb_cache_string(udev, - udev->descriptor.iManufacturer); - udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); - } + + /* read the standard strings and cache them if present */ + udev->product = usb_cache_string(udev, udev->descriptor.iProduct); + udev->manufacturer = usb_cache_string(udev, + udev->descriptor.iManufacturer); + udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); + err = usb_enumerate_device_otg(udev); if (err < 0) return err; @@ -2427,16 +2423,6 @@ int usb_deauthorize_device(struct usb_device *usb_dev) usb_dev->authorized = 0; usb_set_configuration(usb_dev, -1); - kfree(usb_dev->product); - usb_dev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL); - kfree(usb_dev->manufacturer); - usb_dev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL); - kfree(usb_dev->serial); - usb_dev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL); - - usb_destroy_configuration(usb_dev); - usb_dev->descriptor.bNumConfigurations = 0; - out_unauthorized: usb_unlock_device(usb_dev); return 0; @@ -2464,17 +2450,7 @@ int usb_authorize_device(struct usb_device *usb_dev) goto error_device_descriptor; } - kfree(usb_dev->product); - usb_dev->product = NULL; - kfree(usb_dev->manufacturer); - usb_dev->manufacturer = NULL; - kfree(usb_dev->serial); - usb_dev->serial = NULL; - usb_dev->authorized = 1; - result = usb_enumerate_device(usb_dev); - if (result < 0) - goto error_enumerate; /* Choose and set the configuration. This registers the interfaces * with the driver core and lets interface drivers bind to them. */ @@ -2490,7 +2466,6 @@ int usb_authorize_device(struct usb_device *usb_dev) } dev_info(&usb_dev->dev, "authorized to connect\n"); -error_enumerate: error_device_descriptor: usb_autosuspend_device(usb_dev); error_autoresume: -- cgit v0.10.2 From 7b3e3740f2d0faca9351db88974be534009a3d8d Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 9 Dec 2013 13:19:08 -0600 Subject: usb: wusbcore: use USB_CTRL_SET_TIMEOUT and USB_CTRL_GET_TIMEOUT Use USB_CTRL_SET_TIMEOUT and USB_CTRL_GET_TIMEOUT for USB control messages instead of an arbitrary 1s timeout value. This is particularly useful for WUSB since in the worst case RF scanario, a WUSB device can be unresponsive for up to 4s and still be connected. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index 7fd3f9b..f0b97bb 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -86,7 +86,7 @@ static int __hwahc_set_cluster_id(struct hwahc *hwahc, u8 cluster_id) USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, cluster_id, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); if (result < 0) dev_err(dev, "Cannot set WUSB Cluster ID to 0x%02x: %d\n", cluster_id, result); @@ -106,7 +106,7 @@ static int __hwahc_op_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, interval << 8 | slots, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); } /* @@ -281,7 +281,7 @@ static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc, int delay) USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, delay * 1000, iface_no, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); if (ret == 0) msleep(delay); @@ -310,7 +310,7 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, stream_index, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); if (result < 0) { dev_err(dev, "Cannot set WUSB stream index: %d\n", result); goto out; @@ -321,7 +321,7 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index, WUSB_REQ_SET_WUSB_MAS, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - mas_le, 32, 1000 /* FIXME: arbitrary */); + mas_le, 32, USB_CTRL_SET_TIMEOUT); if (result < 0) dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result); out: @@ -355,7 +355,7 @@ static int __hwahc_op_mmcie_add(struct wusbhc *wusbhc, u8 interval, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, interval << 8 | repeat_cnt, handle << 8 | iface_no, - wuie, wuie->bLength, 1000 /* FIXME: arbitrary */); + wuie, wuie->bLength, USB_CTRL_SET_TIMEOUT); } /* @@ -372,7 +372,7 @@ static int __hwahc_op_mmcie_rm(struct wusbhc *wusbhc, u8 handle) WUSB_REQ_REMOVE_MMC_IE, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, handle << 8 | iface_no, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); } /* @@ -415,7 +415,7 @@ static int __hwahc_op_dev_info_set(struct wusbhc *wusbhc, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, wusb_dev->port_idx << 8 | iface_no, dev_info, sizeof(struct hwa_dev_info), - 1000 /* FIXME: arbitrary */); + USB_CTRL_SET_TIMEOUT); kfree(dev_info); return ret; } @@ -455,7 +455,7 @@ static int __hwahc_dev_set_key(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, USB_DT_KEY << 8 | key_idx, port_idx << 8 | iface_no, - keyd, keyd_len, 1000 /* FIXME: arbitrary */); + keyd, keyd_len, USB_CTRL_SET_TIMEOUT); kzfree(keyd); /* clear keys etc. */ return result; @@ -497,7 +497,7 @@ static int __hwahc_op_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, USB_REQ_SET_ENCRYPTION, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, encryption_value, port_idx << 8 | iface_no, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); if (result < 0) dev_err(wusbhc->dev, "Can't set host's WUSB encryption for " "port index %u to %s (value %d): %d\n", port_idx, diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c index f06ed82..56310fc 100644 --- a/drivers/usb/wusbcore/cbaf.c +++ b/drivers/usb/wusbcore/cbaf.c @@ -144,7 +144,7 @@ static int cbaf_check(struct cbaf *cbaf) CBAF_REQ_GET_ASSOCIATION_INFORMATION, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, - cbaf->buffer, cbaf->buffer_size, 1000 /* FIXME: arbitrary */); + cbaf->buffer, cbaf->buffer_size, USB_CTRL_GET_TIMEOUT); if (result < 0) { dev_err(dev, "Cannot get available association types: %d\n", result); @@ -265,7 +265,7 @@ static int cbaf_send_host_info(struct cbaf *cbaf) USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0x0101, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, - hi, hi_size, 1000 /* FIXME: arbitrary */); + hi, hi_size, USB_CTRL_SET_TIMEOUT); } /* @@ -288,7 +288,7 @@ static int cbaf_cdid_get(struct cbaf *cbaf) CBAF_REQ_GET_ASSOCIATION_REQUEST, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0x0200, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, - di, cbaf->buffer_size, 1000 /* FIXME: arbitrary */); + di, cbaf->buffer_size, USB_CTRL_GET_TIMEOUT); if (result < 0) { dev_err(dev, "Cannot request device information: %d\n", result); return result; @@ -536,7 +536,7 @@ static int cbaf_cc_upload(struct cbaf *cbaf) CBAF_REQ_SET_ASSOCIATION_RESPONSE, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0x0201, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, - ccd, sizeof(*ccd), 1000 /* FIXME: arbitrary */); + ccd, sizeof(*ccd), USB_CTRL_SET_TIMEOUT); return result; } diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index dd88441..66655e8 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -168,7 +168,7 @@ static int wusb_dev_set_encryption(struct usb_device *usb_dev, int value) result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), USB_REQ_SET_ENCRYPTION, USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, - value, 0, NULL, 0, 1000 /* FIXME: arbitrary */); + value, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); if (result < 0) dev_err(dev, "Can't set device's WUSB encryption to " "%s (value %d): %d\n", @@ -192,7 +192,7 @@ static int wusb_dev_set_gtk(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, USB_DT_KEY << 8 | wusbhc->gtk_index, 0, &wusbhc->gtk.descr, wusbhc->gtk.descr.bLength, - 1000); + USB_CTRL_SET_TIMEOUT); } @@ -302,8 +302,9 @@ int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) /* Set address 0 */ result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), - USB_REQ_SET_ADDRESS, 0, - 0, 0, NULL, 0, 1000 /* FIXME: arbitrary */); + USB_REQ_SET_ADDRESS, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); if (result < 0) { dev_err(dev, "auth failed: can't set address 0: %d\n", result); @@ -317,9 +318,10 @@ int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) /* Set new (authenticated) address. */ result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), - USB_REQ_SET_ADDRESS, 0, - new_address, 0, NULL, 0, - 1000 /* FIXME: arbitrary */); + USB_REQ_SET_ADDRESS, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + new_address, 0, NULL, 0, + USB_CTRL_SET_TIMEOUT); if (result < 0) { dev_err(dev, "auth failed: can't set address %u: %d\n", new_address, result); @@ -382,7 +384,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, usb_dev, usb_sndctrlpipe(usb_dev, 0), USB_REQ_SET_HANDSHAKE, USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, - 1, 0, &hs[0], sizeof(hs[0]), 1000 /* FIXME: arbitrary */); + 1, 0, &hs[0], sizeof(hs[0]), USB_CTRL_SET_TIMEOUT); if (result < 0) { dev_err(dev, "Handshake1: request failed: %d\n", result); goto error_hs1; @@ -393,7 +395,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, usb_dev, usb_rcvctrlpipe(usb_dev, 0), USB_REQ_GET_HANDSHAKE, USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE, - 2, 0, &hs[1], sizeof(hs[1]), 1000 /* FIXME: arbitrary */); + 2, 0, &hs[1], sizeof(hs[1]), USB_CTRL_GET_TIMEOUT); if (result < 0) { dev_err(dev, "Handshake2: request failed: %d\n", result); goto error_hs2; @@ -470,7 +472,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, usb_dev, usb_sndctrlpipe(usb_dev, 0), USB_REQ_SET_HANDSHAKE, USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, - 3, 0, &hs[2], sizeof(hs[2]), 1000 /* FIXME: arbitrary */); + 3, 0, &hs[2], sizeof(hs[2]), USB_CTRL_SET_TIMEOUT); if (result < 0) { dev_err(dev, "Handshake3: request failed: %d\n", result); goto error_hs3; diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index 5b6ae3a..b93d2cb 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -366,7 +366,7 @@ static inline int __wa_feature(struct wahc *wa, unsigned op, u16 feature) USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, feature, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - NULL, 0, 1000 /* FIXME: arbitrary */); + NULL, 0, USB_CTRL_SET_TIMEOUT); } @@ -400,8 +400,7 @@ s32 __wa_get_status(struct wahc *wa) USB_REQ_GET_STATUS, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, - &wa->status, sizeof(wa->status), - 1000 /* FIXME: arbitrary */); + &wa->status, sizeof(wa->status), USB_CTRL_GET_TIMEOUT); if (result >= 0) result = wa->status; return result; diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index b48e74c..accdd15 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -80,7 +80,7 @@ static int __rpipe_get_descr(struct wahc *wa, USB_REQ_GET_DESCRIPTOR, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_RPIPE, USB_DT_RPIPE<<8, index, descr, sizeof(*descr), - 1000 /* FIXME: arbitrary */); + USB_CTRL_GET_TIMEOUT); if (result < 0) { dev_err(dev, "rpipe %u: get descriptor failed: %d\n", index, (int)result); @@ -118,7 +118,7 @@ static int __rpipe_set_descr(struct wahc *wa, USB_REQ_SET_DESCRIPTOR, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, USB_DT_RPIPE<<8, index, descr, sizeof(*descr), - HZ / 10); + USB_CTRL_SET_TIMEOUT); if (result < 0) { dev_err(dev, "rpipe %u: set descriptor failed: %d\n", index, (int)result); @@ -237,7 +237,7 @@ static int __rpipe_reset(struct wahc *wa, unsigned index) wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), USB_REQ_RPIPE_RESET, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, - 0, index, NULL, 0, 1000 /* FIXME: arbitrary */); + 0, index, NULL, 0, USB_CTRL_SET_TIMEOUT); if (result < 0) dev_err(dev, "rpipe %u: reset failed: %d\n", index, result); @@ -527,7 +527,7 @@ void rpipe_ep_disable(struct wahc *wa, struct usb_host_endpoint *ep) wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), USB_REQ_RPIPE_ABORT, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, - 0, index, NULL, 0, 1000 /* FIXME: arbitrary */); + 0, index, NULL, 0, USB_CTRL_SET_TIMEOUT); rpipe_put(rpipe); } mutex_unlock(&wa->rpipe_mutex); @@ -548,7 +548,7 @@ void rpipe_clear_feature_stalled(struct wahc *wa, struct usb_host_endpoint *ep) wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), USB_REQ_CLEAR_FEATURE, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, - RPIPE_STALL, index, NULL, 0, 1000); + RPIPE_STALL, index, NULL, 0, USB_CTRL_SET_TIMEOUT); } mutex_unlock(&wa->rpipe_mutex); } -- cgit v0.10.2 From ea1af42d3d4da73c9d75984f24e569515261b3fd Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 9 Dec 2013 14:15:14 -0600 Subject: usb: wusbcore: move isoc_frame_index from wa_xfer to wa_seg If multiple segments belonging to an isoc transfer are submitted concurrently, the isoc_frame_index field in struct wa_xfer can get corrupted. This patch moves the isoc_frame_index field from struct wa_xfer to struct wa_seg to prevent this from happening. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 673ad80..6aeb52c 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -124,6 +124,8 @@ struct wa_seg { u8 index; /* which segment we are */ int isoc_frame_count; /* number of isoc frames in this segment. */ int isoc_frame_offset; /* starting frame offset in the xfer URB. */ + /* Isoc frame that the current transfer buffer corresponds to. */ + int isoc_frame_index; int isoc_size; /* size of all isoc frames sent by this seg. */ enum wa_seg_status status; ssize_t result; /* bytes xfered or error */ @@ -158,8 +160,6 @@ struct wa_xfer { unsigned is_dma:1; size_t seg_size; int result; - /* Isoc frame that the current transfer buffer corresponds to. */ - int dto_isoc_frame_index; gfp_t gfp; /* allocation mask */ @@ -701,23 +701,23 @@ static void wa_seg_dto_cb(struct urb *urb) if (usb_pipeisoc(xfer->urb->pipe)) { /* Alereon HWA sends all isoc frames in a single transfer. */ if (wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) - xfer->dto_isoc_frame_index += seg->isoc_frame_count; + seg->isoc_frame_index += seg->isoc_frame_count; else - xfer->dto_isoc_frame_index += 1; - if (xfer->dto_isoc_frame_index < seg->isoc_frame_count) { + seg->isoc_frame_index += 1; + if (seg->isoc_frame_index < seg->isoc_frame_count) { data_send_done = 0; holding_dto = 1; /* checked in error cases. */ /* * if this is the last isoc frame of the segment, we * can release DTO after sending this frame. */ - if ((xfer->dto_isoc_frame_index + 1) >= + if ((seg->isoc_frame_index + 1) >= seg->isoc_frame_count) release_dto = 1; } dev_dbg(dev, "xfer 0x%08X#%u: isoc frame = %d, holding_dto = %d, release_dto = %d.\n", - wa_xfer_id(xfer), seg->index, - xfer->dto_isoc_frame_index, holding_dto, release_dto); + wa_xfer_id(xfer), seg->index, seg->isoc_frame_index, + holding_dto, release_dto); } spin_unlock_irqrestore(&xfer->lock, flags); @@ -737,8 +737,7 @@ static void wa_seg_dto_cb(struct urb *urb) * send the URB and release DTO if we no longer need it. */ __wa_populate_dto_urb_isoc(xfer, seg, - seg->isoc_frame_offset + - xfer->dto_isoc_frame_index); + seg->isoc_frame_offset + seg->isoc_frame_index); /* resubmit the URB with the next isoc frame. */ result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); @@ -1324,12 +1323,12 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, struct wahc *wa = xfer->wa; result = usb_submit_urb(seg->isoc_pack_desc_urb, GFP_ATOMIC); + seg->isoc_frame_index = 0; if (result < 0) { pr_err("%s: xfer %p#%u: ISO packet descriptor submit failed: %d\n", __func__, xfer, seg->index, result); goto error_iso_pack_desc_submit; } - xfer->dto_isoc_frame_index = 0; /* * If this segment contains more than one isoc frame, hold * onto the dto resource until we send all frames. -- cgit v0.10.2 From 756a2eed67e61e9596c2b49a787441c2e0daf1e1 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Mon, 9 Dec 2013 14:15:15 -0600 Subject: usb: wusbcore: set packet count correctly on isoc transfers This patch correctly sets the dwNumOfPackets field of the HWA transfer request for isochronous transfers with multiple segments. Previously all segments used the value that was set for the first segment which may not be correct. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 6aeb52c..a70e142 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -1259,8 +1259,11 @@ static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb) for (cnt = 1; cnt < xfer->segs; cnt++) { struct wa_xfer_packet_info_hwaiso *packet_desc; struct wa_seg *seg = xfer->seg[cnt]; + struct wa_xfer_hwaiso *xfer_iso; xfer_hdr = &seg->xfer_hdr; + xfer_iso = container_of(xfer_hdr, + struct wa_xfer_hwaiso, hdr); packet_desc = ((void *)xfer_hdr) + xfer_hdr_size; /* * Copy values from the 0th header. Segment specific @@ -1270,6 +1273,8 @@ static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb) xfer_hdr->bTransferSegment = cnt; xfer_hdr->dwTransferLength = cpu_to_le32(seg->isoc_size); + xfer_iso->dwNumOfPackets = + cpu_to_le32(seg->isoc_frame_count); __wa_setup_isoc_packet_descr(packet_desc, xfer, seg); seg->status = WA_SEG_READY; } -- cgit v0.10.2 From d8318d7f6bd08eba36ed2a7a23ac5389115958bc Mon Sep 17 00:00:00 2001 From: David Cohen Date: Mon, 9 Dec 2013 15:55:34 -0800 Subject: usb: gadget: move bitflags to the end of usb_gadget struct This patch moves all bitflags to the end of usb_gadget struct in order to improve readability. Signed-off-by: David Cohen Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 942ef5e..23b3bfd 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -485,6 +485,11 @@ struct usb_gadget_ops { * @max_speed: Maximal speed the UDC can handle. UDC must support this * and all slower speeds. * @state: the state we are now (attached, suspended, configured, etc) + * @name: Identifies the controller hardware type. Used in diagnostics + * and sometimes configuration. + * @dev: Driver model state for this abstract device. + * @out_epnum: last used out ep number + * @in_epnum: last used in ep number * @sg_supported: true if we can handle scatter-gather * @is_otg: True if the USB device port uses a Mini-AB jack, so that the * gadget driver must provide a USB OTG descriptor. @@ -497,11 +502,6 @@ struct usb_gadget_ops { * only supports HNP on a different root port. * @b_hnp_enable: OTG device feature flag, indicating that the A-Host * enabled HNP support. - * @name: Identifies the controller hardware type. Used in diagnostics - * and sometimes configuration. - * @dev: Driver model state for this abstract device. - * @out_epnum: last used out ep number - * @in_epnum: last used in ep number * * Gadgets have a mostly-portable "gadget driver" implementing device * functions, handling all usb configurations and interfaces. Gadget @@ -530,16 +530,17 @@ struct usb_gadget { enum usb_device_speed speed; enum usb_device_speed max_speed; enum usb_device_state state; + const char *name; + struct device dev; + unsigned out_epnum; + unsigned in_epnum; + unsigned sg_supported:1; unsigned is_otg:1; unsigned is_a_peripheral:1; unsigned b_hnp_enable:1; unsigned a_hnp_support:1; unsigned a_alt_hnp_support:1; - const char *name; - struct device dev; - unsigned out_epnum; - unsigned in_epnum; }; #define work_to_gadget(w) (container_of((w), struct usb_gadget, work)) -- cgit v0.10.2 From 0b2d2bbade59ab2067f326d6dbc2628bee227fd5 Mon Sep 17 00:00:00 2001 From: David Cohen Date: Mon, 9 Dec 2013 15:55:35 -0800 Subject: usb: gadget: add quirk_ep_out_aligned_size field to struct usb_gadget Due to USB controllers may have different restrictions, usb gadget layer needs to provide a generic way to inform gadget functions to complain with non-standard requirements. This patch adds 'quirk_ep_out_aligned_size' field to struct usb_gadget to inform when controller's epout requires buffer size to be aligned to MaxPacketSize. A helper is also provided to align buffer size when necessary. Cc: Alan Stern Acked-by: Michal Nazarewicz Signed-off-by: David Cohen Signed-off-by: Felipe Balbi diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 23b3bfd..cae8a62 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -502,6 +502,8 @@ struct usb_gadget_ops { * only supports HNP on a different root port. * @b_hnp_enable: OTG device feature flag, indicating that the A-Host * enabled HNP support. + * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to + * MaxPacketSize. * * Gadgets have a mostly-portable "gadget driver" implementing device * functions, handling all usb configurations and interfaces. Gadget @@ -541,6 +543,7 @@ struct usb_gadget { unsigned b_hnp_enable:1; unsigned a_hnp_support:1; unsigned a_alt_hnp_support:1; + unsigned quirk_ep_out_aligned_size:1; }; #define work_to_gadget(w) (container_of((w), struct usb_gadget, work)) @@ -559,6 +562,23 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev) /** + * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget + * requires quirk_ep_out_aligned_size, otherwise reguens len. + * @g: controller to check for quirk + * @ep: the endpoint whose maxpacketsize is used to align @len + * @len: buffer size's length to align to @ep's maxpacketsize + * + * This helper is used in case it's required for any reason to check and maybe + * align buffer's size to an ep's maxpacketsize. + */ +static inline size_t +usb_ep_align_maybe(struct usb_gadget *g, struct usb_ep *ep, size_t len) +{ + return !g->quirk_ep_out_aligned_size ? len : + round_up(len, (size_t)ep->desc->wMaxPacketSize); +} + +/** * gadget_is_dualspeed - return true iff the hardware handles high speed * @g: controller that might support both high and full speeds */ -- cgit v0.10.2 From 7fa6803483ed215f9c73780194d49719a060bf1c Mon Sep 17 00:00:00 2001 From: Michal Nazarewicz Date: Mon, 9 Dec 2013 15:55:36 -0800 Subject: usb: gadget: f_fs: remove loop from I/O function When endpoint changes (due to it being disabled or alt setting changed), mimic the action as if the change happened after the request has been queued, instead of retrying with the new endpoint. Signed-off-by: Michal Nazarewicz Cc: David Cohen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 774e8b8..1222cf9 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -758,73 +758,59 @@ static ssize_t ffs_epfile_io(struct file *file, ssize_t ret; int halt; - goto first_try; - do { - spin_unlock_irq(&epfile->ffs->eps_lock); - mutex_unlock(&epfile->mutex); + /* Are we still active? */ + if (WARN_ON(epfile->ffs->state != FFS_ACTIVE)) { + ret = -ENODEV; + goto error; + } -first_try: - /* Are we still active? */ - if (WARN_ON(epfile->ffs->state != FFS_ACTIVE)) { - ret = -ENODEV; + /* Wait for endpoint to be enabled */ + ep = epfile->ep; + if (!ep) { + if (file->f_flags & O_NONBLOCK) { + ret = -EAGAIN; goto error; } - /* Wait for endpoint to be enabled */ - ep = epfile->ep; - if (!ep) { - if (file->f_flags & O_NONBLOCK) { - ret = -EAGAIN; - goto error; - } - - if (wait_event_interruptible(epfile->wait, - (ep = epfile->ep))) { - ret = -EINTR; - goto error; - } - } - - /* Do we halt? */ - halt = !read == !epfile->in; - if (halt && epfile->isoc) { - ret = -EINVAL; + ret = wait_event_interruptible(epfile->wait, (ep = epfile->ep)); + if (ret) { + ret = -EINTR; goto error; } + } - /* Allocate & copy */ - if (!halt && !data) { - data = kzalloc(len, GFP_KERNEL); - if (unlikely(!data)) - return -ENOMEM; + /* Do we halt? */ + halt = !read == !epfile->in; + if (halt && epfile->isoc) { + ret = -EINVAL; + goto error; + } - if (!read && - unlikely(__copy_from_user(data, buf, len))) { - ret = -EFAULT; - goto error; - } - } + /* Allocate & copy */ + if (!halt) { + data = kmalloc(len, GFP_KERNEL); + if (unlikely(!data)) + return -ENOMEM; - /* We will be using request */ - ret = ffs_mutex_lock(&epfile->mutex, - file->f_flags & O_NONBLOCK); - if (unlikely(ret)) + if (!read && unlikely(copy_from_user(data, buf, len))) { + ret = -EFAULT; goto error; + } + } - /* - * We're called from user space, we can use _irq rather then - * _irqsave - */ - spin_lock_irq(&epfile->ffs->eps_lock); + /* We will be using request */ + ret = ffs_mutex_lock(&epfile->mutex, file->f_flags & O_NONBLOCK); + if (unlikely(ret)) + goto error; - /* - * While we were acquiring mutex endpoint got disabled - * or changed? - */ - } while (unlikely(epfile->ep != ep)); + spin_lock_irq(&epfile->ffs->eps_lock); - /* Halt */ - if (unlikely(halt)) { + if (epfile->ep != ep) { + /* In the meantime, endpoint got disabled or changed. */ + ret = -ESHUTDOWN; + spin_unlock_irq(&epfile->ffs->eps_lock); + } else if (halt) { + /* Halt */ if (likely(epfile->ep == ep) && !WARN_ON(!ep->ep)) usb_ep_set_halt(ep->ep); spin_unlock_irq(&epfile->ffs->eps_lock); -- cgit v0.10.2 From 219580e64f035bb9018dbb08d340f90b0ac50f8c Mon Sep 17 00:00:00 2001 From: Michal Nazarewicz Date: Mon, 9 Dec 2013 15:55:37 -0800 Subject: usb: f_fs: check quirk to pad epout buf size when not aligned to maxpacketsize Check gadget.quirk_ep_out_aligned_size to decide if buffer size requires to be aligned to maxpacketsize of an out endpoint. ffs_epfile_io() needs to pad epout buffer to match above condition if quirk is found. Signed-off-by: Michal Nazarewicz Signed-off-by: David Cohen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 1222cf9..3494043 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -753,9 +753,10 @@ static ssize_t ffs_epfile_io(struct file *file, char __user *buf, size_t len, int read) { struct ffs_epfile *epfile = file->private_data; + struct usb_gadget *gadget = epfile->ffs->gadget; struct ffs_ep *ep; char *data = NULL; - ssize_t ret; + ssize_t ret, data_len; int halt; /* Are we still active? */ @@ -788,7 +789,13 @@ static ssize_t ffs_epfile_io(struct file *file, /* Allocate & copy */ if (!halt) { - data = kmalloc(len, GFP_KERNEL); + /* + * Controller may require buffer size to be aligned to + * maxpacketsize of an out endpoint. + */ + data_len = read ? usb_ep_align_maybe(gadget, ep->ep, len) : len; + + data = kmalloc(data_len, GFP_KERNEL); if (unlikely(!data)) return -ENOMEM; @@ -823,7 +830,7 @@ static ssize_t ffs_epfile_io(struct file *file, req->context = &done; req->complete = ffs_epfile_io_complete; req->buf = data; - req->length = len; + req->length = data_len; ret = usb_ep_queue(ep->ep, req, GFP_ATOMIC); @@ -835,9 +842,17 @@ static ssize_t ffs_epfile_io(struct file *file, ret = -EINTR; usb_ep_dequeue(ep->ep, req); } else { + /* + * XXX We may end up silently droping data here. + * Since data_len (i.e. req->length) may be bigger + * than len (after being rounded up to maxpacketsize), + * we may end up with more data then user space has + * space for. + */ ret = ep->status; if (read && ret > 0 && - unlikely(copy_to_user(buf, data, ret))) + unlikely(copy_to_user(buf, data, + min_t(size_t, ret, len)))) ret = -EFAULT; } } -- cgit v0.10.2 From a4b9d94b3dc8e65951c1819d37f213b3c6815adc Mon Sep 17 00:00:00 2001 From: David Cohen Date: Mon, 9 Dec 2013 15:55:38 -0800 Subject: usb: dwc3: set gadget's quirk ep_out_align_size DWC3 requires epout to have buffer size aligned to MaxPacketSize value. This patch sets necessary quirk for it. Signed-off-by: David Cohen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 5452c0f..b85ec11 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2600,6 +2600,12 @@ int dwc3_gadget_init(struct dwc3 *dwc) dwc->gadget.name = "dwc3-gadget"; /* + * Per databook, DWC3 needs buffer size to be aligned to MaxPacketSize + * on ep out. + */ + dwc->gadget.quirk_ep_out_aligned_size = true; + + /* * REVISIT: Here we should clear all pending IRQs to be * sure we're starting from a well known location. */ -- cgit v0.10.2 From 40fcd88b8d49fd911518190c985112097d3a8a17 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 10 Dec 2013 15:01:42 +0800 Subject: USB: storage: fix compile warning This patch should fix the below compile warning: drivers/usb/storage/protocol.c: In function 'usb_stor_access_xfer_buf': drivers/usb/storage/protocol.c:155:22: warning: comparison of distinct pointer types lacks a cast [enabled by default] Reported-by: kbuild test robot Reported-by: Stephen Rothwell Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index f54e5fe..12e3c2f 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -152,7 +152,8 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer, return cnt; while (sg_miter_next(&miter) && cnt < buflen) { - unsigned int len = min(miter.length, buflen - cnt); + unsigned int len = min_t(unsigned int, miter.length, + buflen - cnt); if (dir == FROM_XFER_BUF) memcpy(buffer + cnt, miter.addr, len); -- cgit v0.10.2 From 48fc7dbd52c0559647291f33a10ccdc6cdbe4c72 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 5 Dec 2013 17:07:27 -0800 Subject: usb: xhci: change enumeration scheme to 'new scheme' by default Change the default enumeration scheme for xhci attached non-SuperSpeed devices from: Reset SetAddress [xhci address-device BSR = 0] GetDescriptor(8) GetDescriptor(18) ...to: Reset [xhci address-device BSR = 1] GetDescriptor(64) Reset SetAddress [xhci address-device BSR = 0] GetDescriptor(18) ...as some devices misbehave when encountering a SetAddress command prior to GetDescriptor. There are known legacy devices that require this scheme, but testing has found at least one USB3 device that fails enumeration when presented with this ordering. For now, follow the ehci case and enable 'new scheme' by default for non-SuperSpeed devices. To support this enumeration scheme on xhci the AddressDevice operation needs to be performed twice. The first instance of the command enables the HC's device and slot context info for the device, but omits sending the device a SetAddress command (BSR == block set address request). Then, after GetDescriptor completes, follow up with the full AddressDevice+SetAddress operation. As mentioned before, this ordering of events with USB3 devices causes an extra state transition to be exposed to xhci. Previously USB3 devices would transition directly from 'enabled' to 'addressed' and never need to underrun responses to 'get descriptor'. We do see the 64-byte descriptor fetch the correct data, but the following 18-byte descriptor read after the reset gets: bLength = 0 bDescriptorType = 0 bcdUSB = 0 bDeviceClass = 0 bDeviceSubClass = 0 bDeviceProtocol = 0 bMaxPacketSize0 = 9 instead of: bLength = 12 bDescriptorType = 1 bcdUSB = 300 bDeviceClass = 0 bDeviceSubClass = 0 bDeviceProtocol = 0 bMaxPacketSize0 = 9 which results in the discovery process looping until falling back to 'old scheme' enumeration. Acked-by: Alan Stern Reported-by: David Moore Suggested-by: Sarah Sharp Reported-by: Dan Carpenter Signed-off-by: Dan Williams Signed-off-by: Sarah Sharp diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 32e1035..6a11eff 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2498,6 +2498,21 @@ static unsigned hub_is_wusb(struct usb_hub *hub) #define HUB_LONG_RESET_TIME 200 #define HUB_RESET_TIMEOUT 800 +/* + * "New scheme" enumeration causes an extra state transition to be + * exposed to an xhci host and causes USB3 devices to receive control + * commands in the default state. This has been seen to cause + * enumeration failures, so disable this enumeration scheme for USB3 + * devices. + */ +static bool use_new_scheme(struct usb_device *udev, int retry) +{ + if (udev->speed == USB_SPEED_SUPER) + return false; + + return USE_NEW_SCHEME(retry); +} + static int hub_port_reset(struct usb_hub *hub, int port1, struct usb_device *udev, unsigned int delay, bool warm); @@ -3956,6 +3971,20 @@ static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) } } +static int hub_enable_device(struct usb_device *udev) +{ + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + + if (!hcd->driver->enable_device) + return 0; + if (udev->state == USB_STATE_ADDRESS) + return 0; + if (udev->state != USB_STATE_DEFAULT) + return -EINVAL; + + return hcd->driver->enable_device(hcd, udev); +} + /* Reset device, (re)assign address, get device descriptor. * Device connection must be stable, no more debouncing needed. * Returns device in USB_STATE_ADDRESS, except on error. @@ -4068,7 +4097,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, * this area, and this is how Linux has done it for ages. * Change it cautiously. * - * NOTE: If USE_NEW_SCHEME() is true we will start by issuing + * NOTE: If use_new_scheme() is true we will start by issuing * a 64-byte GET_DESCRIPTOR request. This is what Windows does, * so it may help with some non-standards-compliant devices. * Otherwise we start with SET_ADDRESS and then try to read the @@ -4076,10 +4105,17 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, * value. */ for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) { - if (USE_NEW_SCHEME(retry_counter) && !(hcd->driver->flags & HCD_USB3)) { + bool did_new_scheme = false; + + if (use_new_scheme(udev, retry_counter)) { struct usb_device_descriptor *buf; int r = 0; + did_new_scheme = true; + retval = hub_enable_device(udev); + if (retval < 0) + goto fail; + #define GET_DESCRIPTOR_BUFSIZE 64 buf = kmalloc(GET_DESCRIPTOR_BUFSIZE, GFP_NOIO); if (!buf) { @@ -4168,7 +4204,11 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, * - read ep0 maxpacket even for high and low speed, */ msleep(10); - if (USE_NEW_SCHEME(retry_counter) && !(hcd->driver->flags & HCD_USB3)) + /* use_new_scheme() checks the speed which may have + * changed since the initial look so we cache the result + * in did_new_scheme + */ + if (did_new_scheme) break; } diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index b8dffd5..4221dee 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -331,6 +331,7 @@ static const struct hc_driver xhci_pci_hc_driver = { .check_bandwidth = xhci_check_bandwidth, .reset_bandwidth = xhci_reset_bandwidth, .address_device = xhci_address_device, + .enable_device = xhci_enable_device, .update_hub_device = xhci_update_hub_device, .reset_device = xhci_discover_or_reset_device, diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 9d29aa1..8abda5c 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -69,6 +69,7 @@ static const struct hc_driver xhci_plat_xhci_driver = { .check_bandwidth = xhci_check_bandwidth, .reset_bandwidth = xhci_reset_bandwidth, .address_device = xhci_address_device, + .enable_device = xhci_enable_device, .update_hub_device = xhci_update_hub_device, .reset_device = xhci_discover_or_reset_device, diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index fe9208a..d26cd94 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -4004,12 +4004,12 @@ int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id) /* Queue an address device command TRB */ int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, - u32 slot_id) + u32 slot_id, enum xhci_setup_dev setup) { return queue_command(xhci, lower_32_bits(in_ctx_ptr), upper_32_bits(in_ctx_ptr), 0, - TRB_TYPE(TRB_ADDR_DEV) | SLOT_ID_FOR_TRB(slot_id), - false); + TRB_TYPE(TRB_ADDR_DEV) | SLOT_ID_FOR_TRB(slot_id) + | (setup == SETUP_CONTEXT_ONLY ? TRB_BSR : 0), false); } int xhci_queue_vendor_command(struct xhci_hcd *xhci, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7fe6f66..6598f7e 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3709,12 +3709,13 @@ disable_slot: } /* - * Issue an Address Device command (which will issue a SetAddress request to - * the device). + * Issue an Address Device command and optionally send a corresponding + * SetAddress request to the device. * We should be protected by the usb_address0_mutex in khubd's hub_port_init, so * we should only issue and wait on one address command at the same time. */ -int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) +static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, + enum xhci_setup_dev setup) { unsigned long flags; int timeleft; @@ -3773,7 +3774,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) spin_lock_irqsave(&xhci->lock, flags); cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring); ret = xhci_queue_address_device(xhci, virt_dev->in_ctx->dma, - udev->slot_id); + udev->slot_id, setup); if (ret) { spin_unlock_irqrestore(&xhci->lock, flags); xhci_dbg_trace(xhci, trace_xhci_dbg_address, @@ -3868,6 +3869,16 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) return 0; } +int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) +{ + return xhci_setup_device(hcd, udev, SETUP_CONTEXT_ADDRESS); +} + +int xhci_enable_device(struct usb_hcd *hcd, struct usb_device *udev) +{ + return xhci_setup_device(hcd, udev, SETUP_CONTEXT_ONLY); +} + /* * Transfer the port index into real index in the HW port status * registers. Caculate offset between the port's PORTSC register diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 7807f62..24344aab 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1108,6 +1108,14 @@ struct xhci_event_cmd { }; /* flags bitmasks */ + +/* Address device - disable SetAddress */ +#define TRB_BSR (1<<9) +enum xhci_setup_dev { + SETUP_CONTEXT_ONLY, + SETUP_CONTEXT_ADDRESS, +}; + /* bits 16:23 are the virtual function ID */ /* bits 24:31 are the slot ID */ #define TRB_TO_SLOT_ID(p) (((p) & (0xff<<24)) >> 24) @@ -1760,6 +1768,7 @@ int xhci_free_streams(struct usb_hcd *hcd, struct usb_device *udev, struct usb_host_endpoint **eps, unsigned int num_eps, gfp_t mem_flags); int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev); +int xhci_enable_device(struct usb_hcd *hcd, struct usb_device *udev); int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev); int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, struct usb_device *udev, int enable); @@ -1783,7 +1792,7 @@ int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code); void xhci_ring_cmd_db(struct xhci_hcd *xhci); int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id); int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, - u32 slot_id); + u32 slot_id, enum xhci_setup_dev); int xhci_queue_vendor_command(struct xhci_hcd *xhci, u32 field1, u32 field2, u32 field3, u32 field4); int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id, diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 758ce80..efe8d8a 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -353,6 +353,8 @@ struct hc_driver { void (*reset_bandwidth)(struct usb_hcd *, struct usb_device *); /* Returns the hardware-chosen device address */ int (*address_device)(struct usb_hcd *, struct usb_device *udev); + /* prepares the hardware to send commands to the device */ + int (*enable_device)(struct usb_hcd *, struct usb_device *udev); /* Notifies the HCD after a hub descriptor is fetched. * Will block. */ -- cgit v0.10.2 From 6f8ffc0b43c1043481306ffb8a4b8f53fa1f5ead Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 22 Nov 2013 01:20:01 -0800 Subject: xhci: clarify logging in xhci_setup_device Specify whether we are only performing the context setup portion of the 'address device' command, or the full operation issuing 'SetAddress' on the wire. Signed-off-by: Dan Williams Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 6598f7e..d68ec1a 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3717,6 +3717,7 @@ disable_slot: static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, enum xhci_setup_dev setup) { + const char *act = setup == SETUP_CONTEXT_ONLY ? "context" : "address"; unsigned long flags; int timeleft; struct xhci_virt_device *virt_dev; @@ -3792,8 +3793,8 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, * command on a timeout. */ if (timeleft <= 0) { - xhci_warn(xhci, "%s while waiting for address device command\n", - timeleft == 0 ? "Timeout" : "Signal"); + xhci_warn(xhci, "%s while waiting for setup %s command\n", + timeleft == 0 ? "Timeout" : "Signal", act); /* cancel the address device command */ ret = xhci_cancel_cmd(xhci, NULL, cmd_trb); if (ret < 0) @@ -3804,26 +3805,27 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, switch (virt_dev->cmd_status) { case COMP_CTX_STATE: case COMP_EBADSLT: - xhci_err(xhci, "Setup ERROR: address device command for slot %d.\n", - udev->slot_id); + xhci_err(xhci, "Setup ERROR: setup %s command for slot %d.\n", + act, udev->slot_id); ret = -EINVAL; break; case COMP_TX_ERR: - dev_warn(&udev->dev, "Device not responding to set address.\n"); + dev_warn(&udev->dev, "Device not responding to setup %s.\n", act); ret = -EPROTO; break; case COMP_DEV_ERR: - dev_warn(&udev->dev, "ERROR: Incompatible device for address " - "device command.\n"); + dev_warn(&udev->dev, + "ERROR: Incompatible device for setup %s command\n", act); ret = -ENODEV; break; case COMP_SUCCESS: xhci_dbg_trace(xhci, trace_xhci_dbg_address, - "Successful Address Device command"); + "Successful setup %s command", act); break; default: - xhci_err(xhci, "ERROR: unexpected command completion " - "code 0x%x.\n", virt_dev->cmd_status); + xhci_err(xhci, + "ERROR: unexpected setup %s command completion code 0x%x.\n", + act, virt_dev->cmd_status); xhci_dbg(xhci, "Slot ID %d Output Context:\n", udev->slot_id); xhci_dbg_ctx(xhci, virt_dev->out_ctx, 2); trace_xhci_address_ctx(xhci, virt_dev->out_ctx, 1); -- cgit v0.10.2 From 3d724fa513cd1bd06d3457ccda36941f3606d048 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 11 Dec 2013 05:10:33 +0000 Subject: USB: emi62: Provide the correct bitstream firmware Commit b8e24bfabb03 ('emi62: use request_firmware()') made emi62/bitstream.HEX a copy of emi26/bitstream.HEX. Re-do the conversion from drivers/usb/misc/emi62_fw_{m,s}.h (these headers contained the same bitstream but different firmware). This produces an identical blob to the known working version in http://people.xiph.org/~xiphmont/emagic/emi-20131209.tgz Reported-by: Monty Cc: David Woodhouse Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman diff --git a/firmware/emi62/bitstream.HEX b/firmware/emi62/bitstream.HEX index 3c6ecc3..a0f4f57 100644 --- a/firmware/emi62/bitstream.HEX +++ b/firmware/emi62/bitstream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+:10FD900000006B9700000000000000000000000061 +:04FDA000000000005F :00000001FF // VERSION= 1.0.0.191 // DATE= 2002oct28 -- cgit v0.10.2 From 943befc314ae5848e3be50d1fcdbdf6456e8d6d4 Mon Sep 17 00:00:00 2001 From: WingMan Kwok Date: Thu, 12 Dec 2013 12:25:29 -0500 Subject: usb: dwc3: add Keystone specific glue layer Add Keystone platform specific glue layer to support USB3 Host mode. [ balbi@ti.com : fix order of clk_disable() and platform_device_unregister() ] Cc: Greg Kroah-Hartman Acked-by: Santosh Shilimkar Signed-off-by: WingMan Kwok Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 70fc430..e2c730f 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -70,6 +70,13 @@ config USB_DWC3_PCI One such PCIe-based platform is Synopsys' PCIe HAPS model of this IP. +config USB_DWC3_KEYSTONE + tristate "Texas Instruments Keystone2 Platforms" + default USB_DWC3 + help + Support of USB2/3 functionality in TI Keystone2 platforms. + Say 'Y' or 'M' here if you have one such device + comment "Debugging features" config USB_DWC3_DEBUG diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index dd17601..10ac3e7 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -32,3 +32,4 @@ endif obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o obj-$(CONFIG_USB_DWC3_EXYNOS) += dwc3-exynos.o obj-$(CONFIG_USB_DWC3_PCI) += dwc3-pci.o +obj-$(CONFIG_USB_DWC3_KEYSTONE) += dwc3-keystone.o diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c new file mode 100644 index 0000000..1fad161 --- /dev/null +++ b/drivers/usb/dwc3/dwc3-keystone.c @@ -0,0 +1,202 @@ +/** + * dwc3-keystone.c - Keystone Specific Glue layer + * + * Copyright (C) 2010-2013 Texas Instruments Incorporated - http://www.ti.com + * + * Author: WingMan Kwok + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* USBSS register offsets */ +#define USBSS_REVISION 0x0000 +#define USBSS_SYSCONFIG 0x0010 +#define USBSS_IRQ_EOI 0x0018 +#define USBSS_IRQSTATUS_RAW_0 0x0020 +#define USBSS_IRQSTATUS_0 0x0024 +#define USBSS_IRQENABLE_SET_0 0x0028 +#define USBSS_IRQENABLE_CLR_0 0x002c + +/* IRQ register bits */ +#define USBSS_IRQ_EOI_LINE(n) BIT(n) +#define USBSS_IRQ_EVENT_ST BIT(0) +#define USBSS_IRQ_COREIRQ_EN BIT(0) +#define USBSS_IRQ_COREIRQ_CLR BIT(0) + +static u64 kdwc3_dma_mask; + +struct dwc3_keystone { + struct device *dev; + struct clk *clk; + void __iomem *usbss; +}; + +static inline u32 kdwc3_readl(void __iomem *base, u32 offset) +{ + return readl(base + offset); +} + +static inline void kdwc3_writel(void __iomem *base, u32 offset, u32 value) +{ + writel(value, base + offset); +} + +static void kdwc3_enable_irqs(struct dwc3_keystone *kdwc) +{ + u32 val; + + val = kdwc3_readl(kdwc->usbss, USBSS_IRQENABLE_SET_0); + val |= USBSS_IRQ_COREIRQ_EN; + kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, val); +} + +static void kdwc3_disable_irqs(struct dwc3_keystone *kdwc) +{ + u32 val; + + val = kdwc3_readl(kdwc->usbss, USBSS_IRQENABLE_SET_0); + val &= ~USBSS_IRQ_COREIRQ_EN; + kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, val); +} + +static irqreturn_t dwc3_keystone_interrupt(int irq, void *_kdwc) +{ + struct dwc3_keystone *kdwc = _kdwc; + + kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_CLR_0, USBSS_IRQ_COREIRQ_CLR); + kdwc3_writel(kdwc->usbss, USBSS_IRQSTATUS_0, USBSS_IRQ_EVENT_ST); + kdwc3_writel(kdwc->usbss, USBSS_IRQENABLE_SET_0, USBSS_IRQ_COREIRQ_EN); + kdwc3_writel(kdwc->usbss, USBSS_IRQ_EOI, USBSS_IRQ_EOI_LINE(0)); + + return IRQ_HANDLED; +} + +static int kdwc3_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *node = pdev->dev.of_node; + struct dwc3_keystone *kdwc; + struct resource *res; + int error, irq; + + kdwc = devm_kzalloc(dev, sizeof(*kdwc), GFP_KERNEL); + if (!kdwc) + return -ENOMEM; + + platform_set_drvdata(pdev, kdwc); + + kdwc->dev = dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "missing usbss resource\n"); + return -EINVAL; + } + + kdwc->usbss = devm_ioremap_resource(dev, res); + if (IS_ERR(kdwc->usbss)) + return PTR_ERR(kdwc->usbss); + + kdwc3_dma_mask = dma_get_mask(dev); + dev->dma_mask = &kdwc3_dma_mask; + + kdwc->clk = devm_clk_get(kdwc->dev, "usb"); + + error = clk_prepare_enable(kdwc->clk); + if (error < 0) { + dev_dbg(kdwc->dev, "unable to enable usb clock, err %d\n", + error); + return error; + } + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "missing irq\n"); + goto err_irq; + } + + error = devm_request_irq(dev, irq, dwc3_keystone_interrupt, IRQF_SHARED, + dev_name(dev), kdwc); + if (error) { + dev_err(dev, "failed to request IRQ #%d --> %d\n", + irq, error); + goto err_irq; + } + + kdwc3_enable_irqs(kdwc); + + error = of_platform_populate(node, NULL, NULL, dev); + if (error) { + dev_err(&pdev->dev, "failed to create dwc3 core\n"); + goto err_core; + } + + return 0; + +err_core: + kdwc3_disable_irqs(kdwc); +err_irq: + clk_disable_unprepare(kdwc->clk); + + return error; +} + +static int kdwc3_remove_core(struct device *dev, void *c) +{ + struct platform_device *pdev = to_platform_device(dev); + + platform_device_unregister(pdev); + + return 0; +} + +static int kdwc3_remove(struct platform_device *pdev) +{ + struct dwc3_keystone *kdwc = platform_get_drvdata(pdev); + + kdwc3_disable_irqs(kdwc); + device_for_each_child(&pdev->dev, NULL, kdwc3_remove_core); + clk_disable_unprepare(kdwc->clk); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static const struct of_device_id kdwc3_of_match[] = { + { .compatible = "ti,keystone-dwc3", }, + {}, +}; +MODULE_DEVICE_TABLE(of, kdwc3_of_match); + +static struct platform_driver kdwc3_driver = { + .probe = kdwc3_probe, + .remove = kdwc3_remove, + .driver = { + .name = "keystone-dwc3", + .owner = THIS_MODULE, + .of_match_table = kdwc3_of_match, + }, +}; + +module_platform_driver(kdwc3_driver); + +MODULE_ALIAS("platform:keystone-dwc3"); +MODULE_AUTHOR("WingMan Kwok "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("DesignWare USB3 KEYSTONE Glue Layer"); -- cgit v0.10.2 From 25acdd08fd715cf612428c2b3c39ce2a41926238 Mon Sep 17 00:00:00 2001 From: WingMan Kwok Date: Thu, 12 Dec 2013 12:25:30 -0500 Subject: usb: phy: add Keystone usb phy driver Add Keystone platform USB PHY driver support. Current main purpose of this driver is to enable the PHY reference clock gate on the Keystone SoC. Otherwise it is a nop PHY. [ balbi@ti.com : add COMPILE_TEST as a possible dependency make sure drvdata is initialized before adding PHY ] Cc: Greg Kroah-Hartman Acked-by: Santosh Shilimkar Signed-off-by: WingMan Kwok Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 4f22762..54bebba3 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -48,6 +48,15 @@ config ISP1301_OMAP This driver can also be built as a module. If so, the module will be called isp1301_omap. +config KEYSTONE_USB_PHY + tristate "Keystone USB PHY Driver" + depends on ARCH_KEYSTONE || COMPILE_TEST + select NOP_USB_XCEIV + help + Enable this to support Keystone USB phy. This driver provides + interface to interact with USB 2.0 and USB 3.0 PHY that is part + of the Keystone SOC. + config MV_U3D_PHY bool "Marvell USB 3.0 PHY controller Driver" depends on CPU_MMP3 diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 9b3be9e..be58ada 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -32,3 +32,4 @@ obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o obj-$(CONFIG_USB_RCAR_GEN2_PHY) += phy-rcar-gen2-usb.o obj-$(CONFIG_USB_ULPI) += phy-ulpi.o obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o +obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c new file mode 100644 index 0000000..a04fb94 --- /dev/null +++ b/drivers/usb/phy/phy-keystone.c @@ -0,0 +1,142 @@ +/* + * phy-keystone - USB PHY, talking to dwc3 controller in Keystone. + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Author: WingMan Kwok + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include +#include +#include + +#include "phy-generic.h" + +/* USB PHY control register offsets */ +#define USB_PHY_CTL_UTMI 0x0000 +#define USB_PHY_CTL_PIPE 0x0004 +#define USB_PHY_CTL_PARAM_1 0x0008 +#define USB_PHY_CTL_PARAM_2 0x000c +#define USB_PHY_CTL_CLOCK 0x0010 +#define USB_PHY_CTL_PLL 0x0014 + +#define PHY_REF_SSP_EN BIT(29) + +struct keystone_usbphy { + struct usb_phy_gen_xceiv usb_phy_gen; + void __iomem *phy_ctrl; +}; + +static inline u32 keystone_usbphy_readl(void __iomem *base, u32 offset) +{ + return readl(base + offset); +} + +static inline void keystone_usbphy_writel(void __iomem *base, + u32 offset, u32 value) +{ + writel(value, base + offset); +} + +static int keystone_usbphy_init(struct usb_phy *phy) +{ + struct keystone_usbphy *k_phy = dev_get_drvdata(phy->dev); + u32 val; + + val = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK); + keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK, + val | PHY_REF_SSP_EN); + return 0; +} + +static void keystone_usbphy_shutdown(struct usb_phy *phy) +{ + struct keystone_usbphy *k_phy = dev_get_drvdata(phy->dev); + u32 val; + + val = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK); + keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK, + val &= ~PHY_REF_SSP_EN); +} + +static int keystone_usbphy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct keystone_usbphy *k_phy; + struct resource *res; + int ret; + + k_phy = devm_kzalloc(dev, sizeof(*k_phy), GFP_KERNEL); + if (!k_phy) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "missing usb phy resource\n"); + return -EINVAL; + } + + k_phy->phy_ctrl = devm_ioremap_resource(dev, res); + if (IS_ERR(k_phy->phy_ctrl)) + return PTR_ERR(k_phy->phy_ctrl); + + ret = usb_phy_gen_create_phy(dev, &k_phy->usb_phy_gen, + USB_PHY_TYPE_USB2, 0, false); + if (ret) + return ret; + + k_phy->usb_phy_gen.phy.init = keystone_usbphy_init; + k_phy->usb_phy_gen.phy.shutdown = keystone_usbphy_shutdown; + + platform_set_drvdata(pdev, k_phy); + + ret = usb_add_phy_dev(&k_phy->usb_phy_gen.phy); + if (ret) + return ret; + + return 0; +} + +static int keystone_usbphy_remove(struct platform_device *pdev) +{ + struct keystone_usbphy *k_phy = platform_get_drvdata(pdev); + + usb_remove_phy(&k_phy->usb_phy_gen.phy); + + return 0; +} + +static const struct of_device_id keystone_usbphy_ids[] = { + { .compatible = "ti,keystone-usbphy" }, + { } +}; +MODULE_DEVICE_TABLE(of, keystone_usbphy_ids); + +static struct platform_driver keystone_usbphy_driver = { + .probe = keystone_usbphy_probe, + .remove = keystone_usbphy_remove, + .driver = { + .name = "keystone-usbphy", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(keystone_usbphy_ids), + }, +}; + +module_platform_driver(keystone_usbphy_driver); + +MODULE_ALIAS("platform:keystone-usbphy"); +MODULE_AUTHOR("Texas Instruments Inc."); +MODULE_DESCRIPTION("Keystone USB phy driver"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 1b2e21b082a1c67cd7861bd86c4a46a3f0f348ea Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 10 Dec 2013 19:09:02 -0800 Subject: usb: renesas_usbhs: fifo: request DMAEngine once DMAEngine uses IRQ if dma_request_channel() was called, and it is using devm_request_irq() today, OTOH, dma_request_channel() will be called when each USB connection happened on this driver. This means same IRQ will be requested many times whenever each USB connected, and this IRQ isn't freed when USB disconnected. Request DMAEngine once. Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 45b9401..d49f9c3 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -1124,19 +1124,8 @@ void usbhs_fifo_init(struct usbhs_priv *priv) mod->irq_brdysts = 0; cfifo->pipe = NULL; - cfifo->tx_chan = NULL; - cfifo->rx_chan = NULL; - d0fifo->pipe = NULL; - d0fifo->tx_chan = NULL; - d0fifo->rx_chan = NULL; - d1fifo->pipe = NULL; - d1fifo->tx_chan = NULL; - d1fifo->rx_chan = NULL; - - usbhsf_dma_init(priv, usbhsf_get_d0fifo(priv)); - usbhsf_dma_init(priv, usbhsf_get_d1fifo(priv)); } void usbhs_fifo_quit(struct usbhs_priv *priv) @@ -1147,9 +1136,6 @@ void usbhs_fifo_quit(struct usbhs_priv *priv) mod->irq_ready = NULL; mod->irq_bempsts = 0; mod->irq_brdysts = 0; - - usbhsf_dma_quit(priv, usbhsf_get_d0fifo(priv)); - usbhsf_dma_quit(priv, usbhsf_get_d1fifo(priv)); } int usbhs_fifo_probe(struct usbhs_priv *priv) @@ -1171,6 +1157,7 @@ int usbhs_fifo_probe(struct usbhs_priv *priv) fifo->ctr = D0FIFOCTR; fifo->tx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d0_tx_id); fifo->rx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d0_rx_id); + usbhsf_dma_init(priv, fifo); /* D1FIFO */ fifo = usbhsf_get_d1fifo(priv); @@ -1180,10 +1167,13 @@ int usbhs_fifo_probe(struct usbhs_priv *priv) fifo->ctr = D1FIFOCTR; fifo->tx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d1_tx_id); fifo->rx_slave.shdma_slave.slave_id = usbhs_get_dparam(priv, d1_rx_id); + usbhsf_dma_init(priv, fifo); return 0; } void usbhs_fifo_remove(struct usbhs_priv *priv) { + usbhsf_dma_quit(priv, usbhsf_get_d0fifo(priv)); + usbhsf_dma_quit(priv, usbhsf_get_d1fifo(priv)); } -- cgit v0.10.2 From 31e322272d9d7da0724ae6e3180478575aa48909 Mon Sep 17 00:00:00 2001 From: Neil Zhang Date: Wed, 11 Dec 2013 14:45:14 +0800 Subject: usb: phy: initialize the notifier when add a new phy We need to initialize the notifer before use it. So lets initialize it when add a new phy device to reduce the code redundancy. Signed-off-by: Neil Zhang Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c index 0874023..11ab2c4 100644 --- a/drivers/usb/phy/phy-ab8500-usb.c +++ b/drivers/usb/phy/phy-ab8500-usb.c @@ -1415,8 +1415,6 @@ static int ab8500_usb_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ab); - ATOMIC_INIT_NOTIFIER_HEAD(&ab->phy.notifier); - /* all: Disable phy when called from set_host and set_peripheral */ INIT_WORK(&ab->phy_dis_work, ab8500_usb_phy_disable_work); diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index fce3a9e..cd19bbc 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -210,7 +210,6 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, nop->phy.otg->set_host = nop_set_host; nop->phy.otg->set_peripheral = nop_set_peripheral; - ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier); return 0; } EXPORT_SYMBOL_GPL(usb_phy_gen_create_phy); diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c index 02799a5..69462e0 100644 --- a/drivers/usb/phy/phy-gpio-vbus-usb.c +++ b/drivers/usb/phy/phy-gpio-vbus-usb.c @@ -314,8 +314,6 @@ static int gpio_vbus_probe(struct platform_device *pdev) goto err_irq; } - ATOMIC_INIT_NOTIFIER_HEAD(&gpio_vbus->phy.notifier); - INIT_DELAYED_WORK(&gpio_vbus->work, gpio_vbus_work); gpio_vbus->vbus_draw = regulator_get(&pdev->dev, "vbus_draw"); diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index 797c45b..fa44c0f 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -167,8 +167,6 @@ static int mxs_phy_probe(struct platform_device *pdev) mxs_phy->phy.notify_disconnect = mxs_phy_on_disconnect; mxs_phy->phy.type = USB_PHY_TYPE_USB2; - ATOMIC_INIT_NOTIFIER_HEAD(&mxs_phy->phy.notifier); - mxs_phy->clk = clk; platform_set_drvdata(pdev, &mxs_phy->phy); diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c index 1b74523..e6f61e4 100644 --- a/drivers/usb/phy/phy.c +++ b/drivers/usb/phy/phy.c @@ -329,6 +329,8 @@ int usb_add_phy(struct usb_phy *x, enum usb_phy_type type) return -EINVAL; } + ATOMIC_INIT_NOTIFIER_HEAD(&x->notifier); + spin_lock_irqsave(&phy_lock, flags); list_for_each_entry(phy, &phy_list, head) { @@ -367,6 +369,8 @@ int usb_add_phy_dev(struct usb_phy *x) return -EINVAL; } + ATOMIC_INIT_NOTIFIER_HEAD(&x->notifier); + spin_lock_irqsave(&phy_lock, flags); list_for_each_entry(phy_bind, &phy_bind_list, list) if (!(strcmp(phy_bind->phy_dev_name, dev_name(x->dev)))) -- cgit v0.10.2 From 295538ff7e5389d5aee5845c548f114b793d60c9 Mon Sep 17 00:00:00 2001 From: Robert Baldyga Date: Fri, 6 Dec 2013 13:03:44 +0100 Subject: usb: gadget: s3c-hsotg: fix maxpacket size in s3c_hsotg_irq_enumdone This patch set maximum possible maxpacket value for each speed. Previous values didn't allow to use maxpacket sizes greater than 64 in full speed and 512 in high speed, although hardware is able to handle up to 1023 in fs and 1024 in hs. Tested-by: Matt Porter Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 9875d9c..2fa7a9c 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2080,13 +2080,13 @@ static void s3c_hsotg_irq_enumdone(struct s3c_hsotg *hsotg) case DSTS_EnumSpd_FS48: hsotg->gadget.speed = USB_SPEED_FULL; ep0_mps = EP0_MPS_LIMIT; - ep_mps = 64; + ep_mps = 1023; break; case DSTS_EnumSpd_HS: hsotg->gadget.speed = USB_SPEED_HIGH; ep0_mps = EP0_MPS_LIMIT; - ep_mps = 512; + ep_mps = 1024; break; case DSTS_EnumSpd_LS: -- cgit v0.10.2 From b963a81a4803fb387d6551ea0fb66876e0c8ff12 Mon Sep 17 00:00:00 2001 From: Robert Baldyga Date: Fri, 6 Dec 2013 13:03:45 +0100 Subject: usb: gadget: s3c-hsotg: add flush TX FIFO when kill all requests This patch adds flushing TX FIFO in kill_all_requests() function in dedicated-fifo mode. It's because when requests are killed (when endpoint is disabled or in case of device reset/disconnection) in FIFO can stay some unsent data. In the worst case FIFO can stay full, and then if endpoint will be back enabled, sending new data will be impossible. Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 2fa7a9c..6c80bfc 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2150,6 +2150,9 @@ static void kill_all_requests(struct s3c_hsotg *hsotg, s3c_hsotg_complete_request(hsotg, ep, req, result); } + if(hsotg->dedicated_fifos) + if ((readl(hsotg->regs + DTXFSTS(ep->index)) & 0xffff) * 4 < 3072) + s3c_hsotg_txfifo_flush(hsotg, ep->index); } #define call_gadget(_hs, _entry) \ -- cgit v0.10.2 From 1933861db4f7c9beecca5cc7460c6c814554cc34 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:21 +0100 Subject: usb: gadget: configfs: allow setting function instance's name USB function's configfs config group is created in a generic way in usb/gadget/configfs.c:function_make(), which in turn delegates actual allocation and setup of the USB function instance to a particular implementation, e.g. in f_acm.c. The said implementation does its job in a parameter-less function e.g. acm_alloc_instance(), which results in creating an unnamed config group, whose name is set later in function_make(). function_make() creates the name by parsing a string of the form: . which comes from userspace as a parameter to mkdir invocation. Up to now only has been used, while has been ignored. This patch adds a set_inst_name() operation to struct usb_function_instance which allows passing the from function_make() so that it is not ignored. It is entirely up to the implementor of set_inst_name() what to do with the . In a typical case, the struct usb_function_instance is embedded in a larger struct which is retrieved in set_inst_name() with container_of(), and the larger struct contains a field to store the . Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 2588511..d6c8ab4 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -564,6 +564,13 @@ static struct config_group *function_make( usb_put_function_instance(fi); return ERR_PTR(ret); } + if (fi->set_inst_name) { + ret = fi->set_inst_name(fi, instance_name); + if (ret) { + usb_put_function_instance(fi); + return ERR_PTR(ret); + } + } gi = container_of(group, struct gadget_info, functions_group); diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 5e61589..dba63f5 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -468,6 +468,8 @@ struct usb_function_instance { struct config_group group; struct list_head cfs_list; struct usb_function_driver *fd; + int (*set_inst_name)(struct usb_function_instance *inst, + const char *name); void (*free_func_inst)(struct usb_function_instance *inst); }; -- cgit v0.10.2 From 1ec8f00f34a78f8d43504ffba3f31eddf4433408 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:22 +0100 Subject: usb: gadget: g_ffs: remove a reduntant gfs_ether_setup variable Since d6a0143985489e470a118605352f4b18df0ce142 usb: gadget: move the global the_dev variable to their users "the_dev" variable can be used as a "setup done" flag; non-NULL meaning "setup done", NULL meaning "setup not done". Moreover, gether_cleanup() can be safely called with a NULL argument. Corrected a comment to be consistent with the code. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 2344efe..e954082 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -182,7 +182,6 @@ static __refdata struct usb_composite_driver gfs_driver = { static DEFINE_MUTEX(gfs_lock); static unsigned int missing_funcs; -static bool gfs_ether_setup; static bool gfs_registered; static bool gfs_single_func; static struct gfs_ffs_obj *ffs_tab; @@ -364,7 +363,6 @@ static int gfs_bind(struct usb_composite_dev *cdev) ret = PTR_ERR(the_dev); goto error_quick; } - gfs_ether_setup = true; ret = usb_string_ids_tab(cdev, gfs_strings); if (unlikely(ret < 0)) @@ -401,8 +399,8 @@ error_unbind: functionfs_unbind(ffs_tab[i].ffs_data); error: gether_cleanup(the_dev); + the_dev = NULL; error_quick: - gfs_ether_setup = false; return ret; } @@ -415,18 +413,17 @@ static int gfs_unbind(struct usb_composite_dev *cdev) ENTER(); + gether_cleanup(the_dev); + the_dev = NULL; + /* * We may have been called in an error recovery from * composite_bind() after gfs_unbind() failure so we need to - * check if gfs_ffs_data is not NULL since gfs_bind() handles + * check if instance's ffs_data is not NULL since gfs_bind() handles * all error recovery itself. I'd rather we werent called * from composite on orror recovery, but what you're gonna * do...? */ - if (gfs_ether_setup) - gether_cleanup(the_dev); - gfs_ether_setup = false; - for (i = func_num; i--; ) if (ffs_tab[i].ffs_data) functionfs_unbind(ffs_tab[i].ffs_data); -- cgit v0.10.2 From f212ad4e39759ab24434858630ac627b59e879db Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:23 +0100 Subject: usb: gadget: g_ffs: convert to new interface of f_ecm There is a new funtion interface and g_ffs is the last gadget to use the old. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 5f1d444..b135856 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -895,6 +895,7 @@ config USB_FUNCTIONFS_ETH bool "Include configuration with CDC ECM (Ethernet)" depends on USB_FUNCTIONFS && NET select USB_U_ETHER + select USB_F_ECM help Include a configuration with CDC ECM function (Ethernet) and the Function Filesystem. diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index e954082..cda4c5d 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -28,8 +28,7 @@ # define USB_ETH_RNDIS y # endif -#define USBF_ECM_INCLUDED -# include "f_ecm.c" +# include "u_ecm.h" #define USB_FSUBSET_INCLUDED # include "f_subset.c" # ifdef USB_ETH_RNDIS @@ -39,11 +38,15 @@ # endif # include "u_ether.h" +USB_ETHERNET_MODULE_PARAMETERS(); + static u8 gfs_host_mac[ETH_ALEN]; static struct eth_dev *the_dev; # ifdef CONFIG_USB_FUNCTIONFS_ETH static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], struct eth_dev *dev); +static struct usb_function_instance *fi_ecm; +static struct usb_function *f_ecm; # endif #else # define the_dev NULL @@ -76,10 +79,6 @@ struct gfs_ffs_obj { USB_GADGET_COMPOSITE_OPTIONS(); -#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS -USB_ETHERNET_MODULE_PARAMETERS(); -#endif - static struct usb_device_descriptor gfs_dev_desc = { .bLength = sizeof gfs_dev_desc, .bDescriptorType = USB_DT_DEVICE, @@ -355,14 +354,50 @@ static int gfs_bind(struct usb_composite_dev *cdev) if (missing_funcs) return -ENODEV; -#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS +#if defined CONFIG_USB_FUNCTIONFS_ETH + if (can_support_ecm(cdev->gadget)) { + struct f_ecm_opts *ecm_opts; + + fi_ecm = usb_get_function_instance("ecm"); + if (IS_ERR(fi_ecm)) + return PTR_ERR(fi_ecm); + ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); + + gether_set_qmult(ecm_opts->net, qmult); + + if (!gether_set_host_addr(ecm_opts->net, host_addr)) + pr_info("using host ethernet address: %s", host_addr); + if (!gether_set_dev_addr(ecm_opts->net, dev_addr)) + pr_info("using self ethernet address: %s", dev_addr); + + the_dev = netdev_priv(ecm_opts->net); + } else { + the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, + gfs_host_mac, qmult); + } + +#elif defined CONFIG_USB_FUNCTIONFS_RNDIS + the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, gfs_host_mac, qmult); #endif - if (IS_ERR(the_dev)) { - ret = PTR_ERR(the_dev); - goto error_quick; + if (IS_ERR(the_dev)) + return PTR_ERR(the_dev); + +#if defined CONFIG_USB_FUNCTIONFS_RNDIS && defined CONFIG_USB_FUNCTIONFS_ETH + if (can_support_ecm(cdev->gadget)) { + struct f_ecm_opts *ecm_opts; + + ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); + + gether_set_gadget(ecm_opts->net, cdev->gadget); + ret = gether_register_netdev(ecm_opts->net); + if (ret) + goto error; + ecm_opts->bound = true; + gether_get_host_addr_u8(ecm_opts->net, gfs_host_mac); } +#endif ret = usb_string_ids_tab(cdev, gfs_strings); if (unlikely(ret < 0)) @@ -398,9 +433,16 @@ error_unbind: for (i = 0; i < func_num; i++) functionfs_unbind(ffs_tab[i].ffs_data); error: +#if defined CONFIG_USB_FUNCTIONFS_ETH + if (can_support_ecm(cdev->gadget)) + usb_put_function_instance(fi_ecm); + else + gether_cleanup(the_dev); + the_dev = NULL; +#elif defined CONFIG_USB_FUNCTIONFS_RNDIS gether_cleanup(the_dev); the_dev = NULL; -error_quick: +#endif return ret; } @@ -413,8 +455,19 @@ static int gfs_unbind(struct usb_composite_dev *cdev) ENTER(); + +#if defined CONFIG_USB_FUNCTIONFS_ETH + if (can_support_ecm(cdev->gadget)) { + usb_put_function(f_ecm); + usb_put_function_instance(fi_ecm); + } else { + gether_cleanup(the_dev); + } + the_dev = NULL; +#elif defined CONFIG_USB_FUNCTIONFS_RNDIS gether_cleanup(the_dev); the_dev = NULL; +#endif /* * We may have been called in an error recovery from @@ -483,9 +536,21 @@ static int gfs_do_config(struct usb_configuration *c) static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], struct eth_dev *dev) { - return can_support_ecm(c->cdev->gadget) - ? ecm_bind_config(c, ethaddr, dev) - : geth_bind_config(c, ethaddr, dev); + int status = 0; + + if (can_support_ecm(c->cdev->gadget)) { + f_ecm = usb_get_function(fi_ecm); + if (IS_ERR(f_ecm)) + return PTR_ERR(f_ecm); + + status = usb_add_function(c, f_ecm); + if (status < 0) + usb_put_function(f_ecm); + + } else { + status = geth_bind_config(c, ethaddr, dev); + } + return status; } #endif -- cgit v0.10.2 From f1a2ca2e4be7327e9f71257c88c0b4f511cb6677 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:24 +0100 Subject: usb: gadget: f_ecm: remove compatibility layer There are no old function interface users left, so the old interface can be removed. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmim Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index 8d9e6f7..798760f 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -691,7 +691,6 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) int status; struct usb_ep *ep; -#ifndef USBF_ECM_INCLUDED struct f_ecm_opts *ecm_opts; if (!can_support_ecm(cdev->gadget)) @@ -715,7 +714,7 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) return status; ecm_opts->bound = true; } -#endif + us = usb_gstrings_attach(cdev, ecm_strings, ARRAY_SIZE(ecm_string_defs)); if (IS_ERR(us)) @@ -834,74 +833,6 @@ fail: return status; } -#ifdef USBF_ECM_INCLUDED - -static void -ecm_old_unbind(struct usb_configuration *c, struct usb_function *f) -{ - struct f_ecm *ecm = func_to_ecm(f); - - DBG(c->cdev, "ecm unbind\n"); - - usb_free_all_descriptors(f); - - kfree(ecm->notify_req->buf); - usb_ep_free_request(ecm->notify, ecm->notify_req); - kfree(ecm); -} - -/** - * ecm_bind_config - add CDC Ethernet network link to a configuration - * @c: the configuration to support the network link - * @ethaddr: a buffer in which the ethernet address of the host side - * side of the link was recorded - * @dev: eth_dev structure - * Context: single threaded during gadget setup - * - * Returns zero on success, else negative errno. - * - * Caller must have called @gether_setup(). Caller is also responsible - * for calling @gether_cleanup() before module unload. - */ -int -ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev) -{ - struct f_ecm *ecm; - int status; - - if (!can_support_ecm(c->cdev->gadget) || !ethaddr) - return -EINVAL; - - /* allocate and initialize one new instance */ - ecm = kzalloc(sizeof *ecm, GFP_KERNEL); - if (!ecm) - return -ENOMEM; - - /* export host's Ethernet address in CDC format */ - snprintf(ecm->ethaddr, sizeof ecm->ethaddr, "%pm", ethaddr); - ecm_string_defs[1].s = ecm->ethaddr; - - ecm->port.ioport = dev; - ecm->port.cdc_filter = DEFAULT_FILTER; - - ecm->port.func.name = "cdc_ethernet"; - /* descriptors are per-instance copies */ - ecm->port.func.bind = ecm_bind; - ecm->port.func.unbind = ecm_old_unbind; - ecm->port.func.set_alt = ecm_set_alt; - ecm->port.func.get_alt = ecm_get_alt; - ecm->port.func.setup = ecm_setup; - ecm->port.func.disable = ecm_disable; - - status = usb_add_function(c, &ecm->port.func); - if (status) - kfree(ecm); - return status; -} - -#else - static inline struct f_ecm_opts *to_f_ecm_opts(struct config_item *item) { return container_of(to_config_group(item), struct f_ecm_opts, @@ -1040,5 +971,3 @@ static struct usb_function *ecm_alloc(struct usb_function_instance *fi) DECLARE_USB_FUNCTION_INIT(ecm, ecm_alloc_inst, ecm_alloc); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); - -#endif diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index a32b41e..c060595 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -270,8 +270,6 @@ static inline bool can_support_ecm(struct usb_gadget *gadget) /* each configuration may bind one instance of an ethernet link */ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], struct eth_dev *dev); -int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev); #ifdef USB_ETH_RNDIS -- cgit v0.10.2 From 85aec59fabaa89f96cafe77fa02ee566e0499636 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:25 +0100 Subject: usb: gadget: g_ffs: convert to new interface of f_subset There is a new function interface of f_subset and g_ffs is the last to use the old one. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index b135856..d8a1d5c 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -896,6 +896,7 @@ config USB_FUNCTIONFS_ETH depends on USB_FUNCTIONFS && NET select USB_U_ETHER select USB_F_ECM + select USB_F_SUBSET help Include a configuration with CDC ECM function (Ethernet) and the Function Filesystem. diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index cda4c5d..99ae8ec 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -21,6 +21,8 @@ * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ #if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS +#include + # if defined USB_ETH_RNDIS # undef USB_ETH_RNDIS # endif @@ -29,8 +31,7 @@ # endif # include "u_ecm.h" -#define USB_FSUBSET_INCLUDED -# include "f_subset.c" +# include "u_gether.h" # ifdef USB_ETH_RNDIS # define USB_FRNDIS_INCLUDED # include "f_rndis.c" @@ -47,6 +48,8 @@ static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], struct eth_dev *dev); static struct usb_function_instance *fi_ecm; static struct usb_function *f_ecm; +static struct usb_function_instance *fi_geth; +static struct usb_function *f_geth; # endif #else # define the_dev NULL @@ -348,6 +351,9 @@ static void functionfs_release_dev_callback(struct ffs_data *ffs_data) */ static int gfs_bind(struct usb_composite_dev *cdev) { +#if defined CONFIG_USB_FUNCTIONFS_ETH + struct net_device *net; +#endif int ret, i; ENTER(); @@ -362,19 +368,25 @@ static int gfs_bind(struct usb_composite_dev *cdev) if (IS_ERR(fi_ecm)) return PTR_ERR(fi_ecm); ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); - - gether_set_qmult(ecm_opts->net, qmult); - - if (!gether_set_host_addr(ecm_opts->net, host_addr)) - pr_info("using host ethernet address: %s", host_addr); - if (!gether_set_dev_addr(ecm_opts->net, dev_addr)) - pr_info("using self ethernet address: %s", dev_addr); - - the_dev = netdev_priv(ecm_opts->net); + net = ecm_opts->net; } else { - the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, - gfs_host_mac, qmult); + struct f_gether_opts *geth_opts; + + fi_geth = usb_get_function_instance("geth"); + if (IS_ERR(fi_geth)) + return PTR_ERR(fi_geth); + geth_opts = container_of(fi_geth, struct f_gether_opts, + func_inst); + net = geth_opts->net; } + gether_set_qmult(net, qmult); + + if (!gether_set_host_addr(net, host_addr)) + pr_info("using host ethernet address: %s", host_addr); + if (!gether_set_dev_addr(net, dev_addr)) + pr_info("using self ethernet address: %s", dev_addr); + + the_dev = netdev_priv(net); #elif defined CONFIG_USB_FUNCTIONFS_RNDIS @@ -385,18 +397,24 @@ static int gfs_bind(struct usb_composite_dev *cdev) return PTR_ERR(the_dev); #if defined CONFIG_USB_FUNCTIONFS_RNDIS && defined CONFIG_USB_FUNCTIONFS_ETH + gether_set_gadget(net, cdev->gadget); + ret = gether_register_netdev(net); + if (ret) + goto error; + if (can_support_ecm(cdev->gadget)) { struct f_ecm_opts *ecm_opts; ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); - - gether_set_gadget(ecm_opts->net, cdev->gadget); - ret = gether_register_netdev(ecm_opts->net); - if (ret) - goto error; ecm_opts->bound = true; - gether_get_host_addr_u8(ecm_opts->net, gfs_host_mac); + } else { + struct f_gether_opts *geth_opts; + + geth_opts = container_of(fi_geth, struct f_gether_opts, + func_inst); + geth_opts->bound = true; } + gether_get_host_addr_u8(net, gfs_host_mac); #endif ret = usb_string_ids_tab(cdev, gfs_strings); @@ -437,7 +455,7 @@ error: if (can_support_ecm(cdev->gadget)) usb_put_function_instance(fi_ecm); else - gether_cleanup(the_dev); + usb_put_function_instance(fi_geth); the_dev = NULL; #elif defined CONFIG_USB_FUNCTIONFS_RNDIS gether_cleanup(the_dev); @@ -461,7 +479,8 @@ static int gfs_unbind(struct usb_composite_dev *cdev) usb_put_function(f_ecm); usb_put_function_instance(fi_ecm); } else { - gether_cleanup(the_dev); + usb_put_function(f_geth); + usb_put_function_instance(fi_geth); } the_dev = NULL; #elif defined CONFIG_USB_FUNCTIONFS_RNDIS @@ -548,7 +567,13 @@ static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], usb_put_function(f_ecm); } else { - status = geth_bind_config(c, ethaddr, dev); + f_geth = usb_get_function(fi_geth); + if (IS_ERR(f_geth)) + return PTR_ERR(f_geth); + + status = usb_add_function(c, f_geth); + if (status < 0) + usb_put_function(f_geth); } return status; } -- cgit v0.10.2 From 05de3fe3d1c124e4de53b111806c5740acd8d732 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:26 +0100 Subject: usb: gadget: f_subset: remove compatibility layer There are no old function interface users left, so the old interface can be removed. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index 7c8674f..f1a5919 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -301,7 +301,6 @@ geth_bind(struct usb_configuration *c, struct usb_function *f) int status; struct usb_ep *ep; -#ifndef USB_FSUBSET_INCLUDED struct f_gether_opts *gether_opts; gether_opts = container_of(f->fi, struct f_gether_opts, func_inst); @@ -322,7 +321,7 @@ geth_bind(struct usb_configuration *c, struct usb_function *f) return status; gether_opts->bound = true; } -#endif + us = usb_gstrings_attach(cdev, geth_strings, ARRAY_SIZE(geth_string_defs)); if (IS_ERR(us)) @@ -393,61 +392,6 @@ fail: return status; } -#ifdef USB_FSUBSET_INCLUDED - -static void -geth_old_unbind(struct usb_configuration *c, struct usb_function *f) -{ - geth_string_defs[0].id = 0; - usb_free_all_descriptors(f); - kfree(func_to_geth(f)); -} - -/** - * geth_bind_config - add CDC Subset network link to a configuration - * @c: the configuration to support the network link - * @ethaddr: a buffer in which the ethernet address of the host side - * side of the link was recorded - * @dev: eth_dev structure - * Context: single threaded during gadget setup - * - * Returns zero on success, else negative errno. - * - * Caller must have called @gether_setup(). Caller is also responsible - * for calling @gether_cleanup() before module unload. - */ -int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev) -{ - struct f_gether *geth; - int status; - - /* allocate and initialize one new instance */ - geth = kzalloc(sizeof *geth, GFP_KERNEL); - if (!geth) - return -ENOMEM; - - /* export host's Ethernet address in CDC format */ - snprintf(geth->ethaddr, sizeof geth->ethaddr, "%pm", ethaddr); - geth_string_defs[1].s = geth->ethaddr; - - geth->port.ioport = dev; - geth->port.cdc_filter = DEFAULT_FILTER; - - geth->port.func.name = "cdc_subset"; - geth->port.func.bind = geth_bind; - geth->port.func.unbind = geth_old_unbind; - geth->port.func.set_alt = geth_set_alt; - geth->port.func.disable = geth_disable; - - status = usb_add_function(c, &geth->port.func); - if (status) - kfree(geth); - return status; -} - -#else - static inline struct f_gether_opts *to_f_gether_opts(struct config_item *item) { return container_of(to_config_group(item), struct f_gether_opts, @@ -573,5 +517,3 @@ static struct usb_function *geth_alloc(struct usb_function_instance *fi) DECLARE_USB_FUNCTION_INIT(geth, geth_alloc_inst, geth_alloc); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); - -#endif diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index c060595..72b6fac 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -268,9 +268,6 @@ static inline bool can_support_ecm(struct usb_gadget *gadget) } /* each configuration may bind one instance of an ethernet link */ -int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev); - #ifdef USB_ETH_RNDIS int rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], -- cgit v0.10.2 From 6e257b14218d0d963058a96736da6c6e2abb08f3 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:27 +0100 Subject: usb: gadget: g_ffs: convert to new interface of f_rndis There is a new interface of f_rndis and g_ffs is the last to use the old one. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index d8a1d5c..8cea14f 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -906,6 +906,7 @@ config USB_FUNCTIONFS_RNDIS depends on USB_FUNCTIONFS && NET select USB_U_ETHER select USB_U_RNDIS + select USB_F_RNDIS help Include a configuration with RNDIS function (Ethernet) and the Filesystem. diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 99ae8ec..7099a11 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -33,29 +33,25 @@ # include "u_ecm.h" # include "u_gether.h" # ifdef USB_ETH_RNDIS -# define USB_FRNDIS_INCLUDED -# include "f_rndis.c" +# include "u_rndis.h" # include "rndis.h" # endif # include "u_ether.h" USB_ETHERNET_MODULE_PARAMETERS(); -static u8 gfs_host_mac[ETH_ALEN]; -static struct eth_dev *the_dev; # ifdef CONFIG_USB_FUNCTIONFS_ETH -static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev); +static int eth_bind_config(struct usb_configuration *c); static struct usb_function_instance *fi_ecm; static struct usb_function *f_ecm; static struct usb_function_instance *fi_geth; static struct usb_function *f_geth; # endif -#else -# define the_dev NULL -# define gether_cleanup(dev) do { } while (0) -# define gfs_host_mac NULL -struct eth_dev; +# ifdef CONFIG_USB_FUNCTIONFS_RNDIS +static int bind_rndis_config(struct usb_configuration *c); +static struct usb_function_instance *fi_rndis; +static struct usb_function *f_rndis; +# endif #endif #include "f_fs.c" @@ -148,12 +144,11 @@ static struct usb_gadget_strings *gfs_dev_strings[] = { struct gfs_configuration { struct usb_configuration c; - int (*eth)(struct usb_configuration *c, u8 *ethaddr, - struct eth_dev *dev); + int (*eth)(struct usb_configuration *c); } gfs_configurations[] = { #ifdef CONFIG_USB_FUNCTIONFS_RNDIS { - .eth = rndis_bind_config, + .eth = bind_rndis_config, }, #endif @@ -351,7 +346,7 @@ static void functionfs_release_dev_callback(struct ffs_data *ffs_data) */ static int gfs_bind(struct usb_composite_dev *cdev) { -#if defined CONFIG_USB_FUNCTIONFS_ETH +#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS struct net_device *net; #endif int ret, i; @@ -379,28 +374,38 @@ static int gfs_bind(struct usb_composite_dev *cdev) func_inst); net = geth_opts->net; } - gether_set_qmult(net, qmult); +#endif + +#ifdef CONFIG_USB_FUNCTIONFS_RNDIS + { + struct f_rndis_opts *rndis_opts; + + fi_rndis = usb_get_function_instance("rndis"); + if (IS_ERR(fi_rndis)) { + ret = PTR_ERR(fi_rndis); + goto error; + } + rndis_opts = container_of(fi_rndis, struct f_rndis_opts, + func_inst); +#ifndef CONFIG_USB_FUNCTIONFS_ETH + net = rndis_opts->net; +#endif + } +#endif +#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS + gether_set_qmult(net, qmult); if (!gether_set_host_addr(net, host_addr)) pr_info("using host ethernet address: %s", host_addr); if (!gether_set_dev_addr(net, dev_addr)) pr_info("using self ethernet address: %s", dev_addr); - - the_dev = netdev_priv(net); - -#elif defined CONFIG_USB_FUNCTIONFS_RNDIS - - the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, gfs_host_mac, - qmult); #endif - if (IS_ERR(the_dev)) - return PTR_ERR(the_dev); #if defined CONFIG_USB_FUNCTIONFS_RNDIS && defined CONFIG_USB_FUNCTIONFS_ETH gether_set_gadget(net, cdev->gadget); ret = gether_register_netdev(net); if (ret) - goto error; + goto error_rndis; if (can_support_ecm(cdev->gadget)) { struct f_ecm_opts *ecm_opts; @@ -414,12 +419,13 @@ static int gfs_bind(struct usb_composite_dev *cdev) func_inst); geth_opts->bound = true; } - gether_get_host_addr_u8(net, gfs_host_mac); + + rndis_borrow_net(fi_rndis, net); #endif ret = usb_string_ids_tab(cdev, gfs_strings); if (unlikely(ret < 0)) - goto error; + goto error_rndis; gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id; for (i = func_num; i--; ) { @@ -427,7 +433,7 @@ static int gfs_bind(struct usb_composite_dev *cdev) if (unlikely(ret < 0)) { while (++i < func_num) functionfs_unbind(ffs_tab[i].ffs_data); - goto error; + goto error_rndis; } } @@ -450,16 +456,16 @@ static int gfs_bind(struct usb_composite_dev *cdev) error_unbind: for (i = 0; i < func_num; i++) functionfs_unbind(ffs_tab[i].ffs_data); +error_rndis: +#ifdef CONFIG_USB_FUNCTIONFS_RNDIS + usb_put_function_instance(fi_rndis); error: +#endif #if defined CONFIG_USB_FUNCTIONFS_ETH if (can_support_ecm(cdev->gadget)) usb_put_function_instance(fi_ecm); else usb_put_function_instance(fi_geth); - the_dev = NULL; -#elif defined CONFIG_USB_FUNCTIONFS_RNDIS - gether_cleanup(the_dev); - the_dev = NULL; #endif return ret; } @@ -474,6 +480,11 @@ static int gfs_unbind(struct usb_composite_dev *cdev) ENTER(); +#ifdef CONFIG_USB_FUNCTIONFS_RNDIS + usb_put_function(f_rndis); + usb_put_function_instance(fi_rndis); +#endif + #if defined CONFIG_USB_FUNCTIONFS_ETH if (can_support_ecm(cdev->gadget)) { usb_put_function(f_ecm); @@ -482,10 +493,6 @@ static int gfs_unbind(struct usb_composite_dev *cdev) usb_put_function(f_geth); usb_put_function_instance(fi_geth); } - the_dev = NULL; -#elif defined CONFIG_USB_FUNCTIONFS_RNDIS - gether_cleanup(the_dev); - the_dev = NULL; #endif /* @@ -523,7 +530,7 @@ static int gfs_do_config(struct usb_configuration *c) } if (gc->eth) { - ret = gc->eth(c, gfs_host_mac, the_dev); + ret = gc->eth(c); if (unlikely(ret < 0)) return ret; } @@ -552,8 +559,7 @@ static int gfs_do_config(struct usb_configuration *c) #ifdef CONFIG_USB_FUNCTIONFS_ETH -static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - struct eth_dev *dev) +static int eth_bind_config(struct usb_configuration *c) { int status = 0; @@ -579,3 +585,22 @@ static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], } #endif + +#ifdef CONFIG_USB_FUNCTIONFS_RNDIS + +static int bind_rndis_config(struct usb_configuration *c) +{ + int status = 0; + + f_rndis = usb_get_function(fi_rndis); + if (IS_ERR(f_rndis)) + return PTR_ERR(f_rndis); + + status = usb_add_function(c, f_rndis); + if (status < 0) + usb_put_function(f_rndis); + + return status; +} + +#endif -- cgit v0.10.2 From 31f89db1b81ea1c54ca7d186a0c0ebab0d4988f0 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:28 +0100 Subject: usb: gadget: f_rndis: remove compatibility layer There are no old function interface users left, so the old interface can be removed. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 717ed7f..9d7c995 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -675,7 +675,6 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) int status; struct usb_ep *ep; -#ifndef USB_FRNDIS_INCLUDED struct f_rndis_opts *rndis_opts; if (!can_support_rndis(c)) @@ -697,7 +696,7 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) return status; rndis_opts->bound = true; } -#endif + us = usb_gstrings_attach(cdev, rndis_strings, ARRAY_SIZE(rndis_string_defs)); if (IS_ERR(us)) @@ -782,13 +781,6 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) rndis->port.open = rndis_open; rndis->port.close = rndis_close; -#ifdef USB_FRNDIS_INCLUDED - status = rndis_register(rndis_response_available, rndis); - if (status < 0) - goto fail; - rndis->config = status; -#endif - rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3, 0); rndis_set_host_mac(rndis->config, rndis->ethaddr); @@ -830,66 +822,6 @@ fail: return status; } -#ifdef USB_FRNDIS_INCLUDED - -static void -rndis_old_unbind(struct usb_configuration *c, struct usb_function *f) -{ - struct f_rndis *rndis = func_to_rndis(f); - - rndis_deregister(rndis->config); - - usb_free_all_descriptors(f); - - kfree(rndis->notify_req->buf); - usb_ep_free_request(rndis->notify, rndis->notify_req); - - kfree(rndis); -} - -int -rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer, struct eth_dev *dev) -{ - struct f_rndis *rndis; - int status; - - /* allocate and initialize one new instance */ - status = -ENOMEM; - rndis = kzalloc(sizeof *rndis, GFP_KERNEL); - if (!rndis) - goto fail; - - memcpy(rndis->ethaddr, ethaddr, ETH_ALEN); - rndis->vendorID = vendorID; - rndis->manufacturer = manufacturer; - - rndis->port.ioport = dev; - /* RNDIS activates when the host changes this filter */ - rndis->port.cdc_filter = 0; - - /* RNDIS has special (and complex) framing */ - rndis->port.header_len = sizeof(struct rndis_packet_msg_type); - rndis->port.wrap = rndis_add_header; - rndis->port.unwrap = rndis_rm_hdr; - - rndis->port.func.name = "rndis"; - /* descriptors are per-instance copies */ - rndis->port.func.bind = rndis_bind; - rndis->port.func.unbind = rndis_old_unbind; - rndis->port.func.set_alt = rndis_set_alt; - rndis->port.func.setup = rndis_setup; - rndis->port.func.disable = rndis_disable; - - status = usb_add_function(c, &rndis->port.func); - if (status) - kfree(rndis); -fail: - return status; -} - -#else - void rndis_borrow_net(struct usb_function_instance *f, struct net_device *net) { struct f_rndis_opts *opts; @@ -1050,5 +982,3 @@ static struct usb_function *rndis_alloc(struct usb_function_instance *fi) DECLARE_USB_FUNCTION_INIT(rndis, rndis_alloc_inst, rndis_alloc); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); - -#endif diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index 72b6fac..0f0290a 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -267,40 +267,4 @@ static inline bool can_support_ecm(struct usb_gadget *gadget) return true; } -/* each configuration may bind one instance of an ethernet link */ -#ifdef USB_ETH_RNDIS - -int rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer, struct eth_dev *dev); - -#else - -static inline int -rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer, struct eth_dev *dev) -{ - return 0; -} - -#endif - -/** - * rndis_bind_config - add RNDIS network link to a configuration - * @c: the configuration to support the network link - * @ethaddr: a buffer in which the ethernet address of the host side - * side of the link was recorded - * Context: single threaded during gadget setup - * - * Returns zero on success, else negative errno. - * - * Caller must have called @gether_setup(). Caller is also responsible - * for calling @gether_cleanup() before module unload. - */ -static inline int rndis_bind_config(struct usb_configuration *c, - u8 ethaddr[ETH_ALEN], struct eth_dev *dev) -{ - return rndis_bind_config_vendor(c, ethaddr, 0, NULL, dev); -} - - #endif /* __U_ETHER_H */ -- cgit v0.10.2 From 9c2b85f4f99cb5c5f4b8e29ef15e344f93ec5be1 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:29 +0100 Subject: usb: gadget: rndis: merge u_rndis.ko with usb_f_rndis.ko The rndis function's users use only the new interface, so the two modules can be merged. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 8cea14f..aa3610e 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -512,9 +512,6 @@ config USB_U_SERIAL config USB_U_ETHER tristate -config USB_U_RNDIS - tristate - config USB_F_SERIAL tristate @@ -642,7 +639,6 @@ config USB_CONFIGFS_RNDIS depends on USB_CONFIGFS depends on NET select USB_U_ETHER - select USB_U_RNDIS select USB_F_RNDIS help Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol, @@ -772,7 +768,6 @@ config USB_ETH depends on NET select USB_LIBCOMPOSITE select USB_U_ETHER - select USB_U_RNDIS select USB_F_ECM select USB_F_SUBSET select CRC32 @@ -905,7 +900,6 @@ config USB_FUNCTIONFS_RNDIS bool "Include configuration with RNDIS (Ethernet)" depends on USB_FUNCTIONFS && NET select USB_U_ETHER - select USB_U_RNDIS select USB_F_RNDIS help Include a configuration with RNDIS function (Ethernet) and the Filesystem. @@ -1080,7 +1074,6 @@ config USB_G_MULTI config USB_G_MULTI_RNDIS bool "RNDIS + CDC Serial + Storage configuration" depends on USB_G_MULTI - select USB_U_RNDIS select USB_F_RNDIS default y help diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 40bd0f8..0c40277 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -47,8 +47,6 @@ obj-$(CONFIG_USB_F_SERIAL) += usb_f_serial.o usb_f_obex-y := f_obex.o obj-$(CONFIG_USB_F_OBEX) += usb_f_obex.o obj-$(CONFIG_USB_U_ETHER) += u_ether.o -u_rndis-y := rndis.o -obj-$(CONFIG_USB_U_RNDIS) += u_rndis.o usb_f_ncm-y := f_ncm.o obj-$(CONFIG_USB_F_NCM) += usb_f_ncm.o usb_f_ecm-y := f_ecm.o @@ -59,7 +57,7 @@ usb_f_eem-y := f_eem.o obj-$(CONFIG_USB_F_EEM) += usb_f_eem.o usb_f_ecm_subset-y := f_subset.o obj-$(CONFIG_USB_F_SUBSET) += usb_f_ecm_subset.o -usb_f_rndis-y := f_rndis.o +usb_f_rndis-y := f_rndis.o rndis.o obj-$(CONFIG_USB_F_RNDIS) += usb_f_rndis.o usb_f_mass_storage-y := f_mass_storage.o storage_common.o obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 9d7c995..c11761c 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -979,6 +979,26 @@ static struct usb_function *rndis_alloc(struct usb_function_instance *fi) return &rndis->port.func; } -DECLARE_USB_FUNCTION_INIT(rndis, rndis_alloc_inst, rndis_alloc); +DECLARE_USB_FUNCTION(rndis, rndis_alloc_inst, rndis_alloc); + +static int __init rndis_mod_init(void) +{ + int ret; + + ret = rndis_init(); + if (ret) + return ret; + + return usb_function_register(&rndisusb_func); +} +module_init(rndis_mod_init); + +static void __exit rndis_mod_exit(void) +{ + usb_function_unregister(&rndisusb_func); + rndis_exit(); +} +module_exit(rndis_mod_exit); + MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index a3ad732..1ffbdb4 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -1142,7 +1142,7 @@ static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS]; #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ -static int rndis_init(void) +int rndis_init(void) { u8 i; @@ -1174,9 +1174,8 @@ static int rndis_init(void) return 0; } -module_init(rndis_init); -static void rndis_exit(void) +void rndis_exit(void) { #ifdef CONFIG_USB_GADGET_DEBUG_FILES u8 i; @@ -1188,6 +1187,4 @@ static void rndis_exit(void) } #endif } -module_exit(rndis_exit); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/u_rndis.h b/drivers/usb/gadget/u_rndis.h index c62ba82..7291b15 100644 --- a/drivers/usb/gadget/u_rndis.h +++ b/drivers/usb/gadget/u_rndis.h @@ -36,6 +36,8 @@ struct f_rndis_opts { int refcnt; }; +int rndis_init(void); +void rndis_exit(void); void rndis_borrow_net(struct usb_function_instance *f, struct net_device *net); #endif /* U_RNDIS_H */ -- cgit v0.10.2 From e6f3862fa1ecea6579dd1727869655e88be7a5ef Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:30 +0100 Subject: usb: gadget: FunctionFS: Remove VLAIS usage from gadget code The use of variable length arrays in structs (VLAIS) in the Linux Kernel code precludes the use of compilers which don't implement VLAIS (for instance the Clang compiler). This alternate patch calculates offsets into the kmalloc-ed memory buffer using macros. The previous patch required multiple kmalloc and kfree calls. This version uses "group" vs "struct" since it really is not a struct and is essentially a group of VLA in a common allocated block. This version also fixes the issues pointed out by Andrzej Pietrasiewicz and Michal Nazarewicz. Signed-off-by: Mark Charlebois Signed-off-by: Behan Webster [elimination of miexed declaration and code, checkpatch cleanup] [fixes after Michal's review] Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 3494043..91b94b1 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -30,6 +30,31 @@ #define FUNCTIONFS_MAGIC 0xa647361 /* Chosen by a honest dice roll ;) */ +/* Variable Length Array Macros **********************************************/ +#define vla_group(groupname) size_t groupname##__next = 0 +#define vla_group_size(groupname) groupname##__next + +#define vla_item(groupname, type, name, n) \ + size_t groupname##_##name##__offset = ({ \ + size_t align_mask = __alignof__(type) - 1; \ + size_t offset = (groupname##__next + align_mask) & ~align_mask;\ + size_t size = (n) * sizeof(type); \ + groupname##__next = offset + size; \ + offset; \ + }) + +#define vla_item_with_sz(groupname, type, name, n) \ + size_t groupname##_##name##__sz = (n) * sizeof(type); \ + size_t groupname##_##name##__offset = ({ \ + size_t align_mask = __alignof__(type) - 1; \ + size_t offset = (groupname##__next + align_mask) & ~align_mask;\ + size_t size = groupname##_##name##__sz; \ + groupname##__next = offset + size; \ + offset; \ + }) + +#define vla_ptr(ptr, groupname, name) \ + ((void *) ((char *)ptr + groupname##_##name##__offset)) /* Debugging ****************************************************************/ @@ -1902,30 +1927,34 @@ static int __ffs_data_got_strings(struct ffs_data *ffs, /* Allocate everything in one chunk so there's less maintenance. */ { - struct { - struct usb_gadget_strings *stringtabs[lang_count + 1]; - struct usb_gadget_strings stringtab[lang_count]; - struct usb_string strings[lang_count*(needed_count+1)]; - } *d; unsigned i = 0; + vla_group(d); + vla_item(d, struct usb_gadget_strings *, stringtabs, + lang_count + 1); + vla_item(d, struct usb_gadget_strings, stringtab, lang_count); + vla_item(d, struct usb_string, strings, + lang_count*(needed_count+1)); - d = kmalloc(sizeof *d, GFP_KERNEL); - if (unlikely(!d)) { + char *vlabuf = kmalloc(vla_group_size(d), GFP_KERNEL); + + if (unlikely(!vlabuf)) { kfree(_data); return -ENOMEM; } - stringtabs = d->stringtabs; - t = d->stringtab; + /* Initialize the VLA pointers */ + stringtabs = vla_ptr(vlabuf, d, stringtabs); + t = vla_ptr(vlabuf, d, stringtab); i = lang_count; do { *stringtabs++ = t++; } while (--i); *stringtabs = NULL; - stringtabs = d->stringtabs; - t = d->stringtab; - s = d->strings; + /* stringtabs = vlabuf = d_stringtabs for later kfree */ + stringtabs = vla_ptr(vlabuf, d, stringtabs); + t = vla_ptr(vlabuf, d, stringtab); + s = vla_ptr(vlabuf, d, strings); strings = s; } @@ -2201,16 +2230,16 @@ static int ffs_func_bind(struct usb_configuration *c, int ret; /* Make it a single chunk, less management later on */ - struct { - struct ffs_ep eps[ffs->eps_count]; - struct usb_descriptor_header - *fs_descs[full ? ffs->fs_descs_count + 1 : 0]; - struct usb_descriptor_header - *hs_descs[high ? ffs->hs_descs_count + 1 : 0]; - short inums[ffs->interfaces_count]; - char raw_descs[high ? ffs->raw_descs_length - : ffs->raw_fs_descs_length]; - } *data; + vla_group(d); + vla_item_with_sz(d, struct ffs_ep, eps, ffs->eps_count); + vla_item_with_sz(d, struct usb_descriptor_header *, fs_descs, + full ? ffs->fs_descs_count + 1 : 0); + vla_item_with_sz(d, struct usb_descriptor_header *, hs_descs, + high ? ffs->hs_descs_count + 1 : 0); + vla_item_with_sz(d, short, inums, ffs->interfaces_count); + vla_item_with_sz(d, char, raw_descs, + high ? ffs->raw_descs_length : ffs->raw_fs_descs_length); + char *vlabuf; ENTER(); @@ -2218,21 +2247,28 @@ static int ffs_func_bind(struct usb_configuration *c, if (unlikely(!(full | high))) return -ENOTSUPP; - /* Allocate */ - data = kmalloc(sizeof *data, GFP_KERNEL); - if (unlikely(!data)) + /* Allocate a single chunk, less management later on */ + vlabuf = kmalloc(vla_group_size(d), GFP_KERNEL); + if (unlikely(!vlabuf)) return -ENOMEM; /* Zero */ - memset(data->eps, 0, sizeof data->eps); - memcpy(data->raw_descs, ffs->raw_descs + 16, sizeof data->raw_descs); - memset(data->inums, 0xff, sizeof data->inums); - for (ret = ffs->eps_count; ret; --ret) - data->eps[ret].num = -1; + memset(vla_ptr(vlabuf, d, eps), 0, d_eps__sz); + memcpy(vla_ptr(vlabuf, d, raw_descs), ffs->raw_descs + 16, + d_raw_descs__sz); + memset(vla_ptr(vlabuf, d, inums), 0xff, d_inums__sz); + for (ret = ffs->eps_count; ret; --ret) { + struct ffs_ep *ptr; + + ptr = vla_ptr(vlabuf, d, eps); + ptr[ret].num = -1; + } - /* Save pointers */ - func->eps = data->eps; - func->interfaces_nums = data->inums; + /* Save pointers + * d_eps == vlabuf, func->eps used to kfree vlabuf later + */ + func->eps = vla_ptr(vlabuf, d, eps); + func->interfaces_nums = vla_ptr(vlabuf, d, inums); /* * Go through all the endpoint descriptors and allocate @@ -2240,10 +2276,10 @@ static int ffs_func_bind(struct usb_configuration *c, * numbers without worrying that it may be described later on. */ if (likely(full)) { - func->function.fs_descriptors = data->fs_descs; + func->function.fs_descriptors = vla_ptr(vlabuf, d, fs_descs); ret = ffs_do_descs(ffs->fs_descs_count, - data->raw_descs, - sizeof data->raw_descs, + vla_ptr(vlabuf, d, raw_descs), + d_raw_descs__sz, __ffs_func_bind_do_descs, func); if (unlikely(ret < 0)) goto error; @@ -2252,10 +2288,10 @@ static int ffs_func_bind(struct usb_configuration *c, } if (likely(high)) { - func->function.hs_descriptors = data->hs_descs; + func->function.hs_descriptors = vla_ptr(vlabuf, d, hs_descs); ret = ffs_do_descs(ffs->hs_descs_count, - data->raw_descs + ret, - (sizeof data->raw_descs) - ret, + vla_ptr(vlabuf, d, raw_descs) + ret, + d_raw_descs__sz - ret, __ffs_func_bind_do_descs, func); if (unlikely(ret < 0)) goto error; @@ -2268,7 +2304,7 @@ static int ffs_func_bind(struct usb_configuration *c, */ ret = ffs_do_descs(ffs->fs_descs_count + (high ? ffs->hs_descs_count : 0), - data->raw_descs, sizeof data->raw_descs, + vla_ptr(vlabuf, d, raw_descs), d_raw_descs__sz, __ffs_func_bind_do_nums, func); if (unlikely(ret < 0)) goto error; -- cgit v0.10.2 From e72c39c0692d17da4c7f08e20d6c57f7409415f7 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:31 +0100 Subject: usb: gadget: FunctionFS: create utility file A header file to be used by f_fs.c and g_ffs.c will be required when f_fs.c is converted into a module. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 91b94b1..c0b4cf8 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -27,6 +27,7 @@ #include #include +#include "u_fs.h" #define FUNCTIONFS_MAGIC 0xa647361 /* Chosen by a honest dice roll ;) */ diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 7099a11..1aaa103 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -69,13 +69,6 @@ MODULE_LICENSE("GPL"); #define GFS_MAX_DEVS 10 -struct gfs_ffs_obj { - const char *name; - bool mounted; - bool desc_ready; - struct ffs_data *ffs_data; -}; - USB_GADGET_COMPOSITE_OPTIONS(); static struct usb_device_descriptor gfs_dev_desc = { @@ -181,7 +174,7 @@ static DEFINE_MUTEX(gfs_lock); static unsigned int missing_funcs; static bool gfs_registered; static bool gfs_single_func; -static struct gfs_ffs_obj *ffs_tab; +static struct ffs_dev *ffs_tab; static int __init gfs_init(void) { @@ -224,7 +217,7 @@ static void __exit gfs_exit(void) } module_exit(gfs_exit); -static struct gfs_ffs_obj *gfs_find_dev(const char *dev_name) +static struct ffs_dev *gfs_find_dev(const char *dev_name) { int i; @@ -242,7 +235,7 @@ static struct gfs_ffs_obj *gfs_find_dev(const char *dev_name) static int functionfs_ready_callback(struct ffs_data *ffs) { - struct gfs_ffs_obj *ffs_obj; + struct ffs_dev *ffs_obj; int ret; ENTER(); @@ -283,7 +276,7 @@ done: static void functionfs_closed_callback(struct ffs_data *ffs) { - struct gfs_ffs_obj *ffs_obj; + struct ffs_dev *ffs_obj; ENTER(); mutex_lock(&gfs_lock); @@ -305,7 +298,7 @@ done: static void *functionfs_acquire_dev_callback(const char *dev_name) { - struct gfs_ffs_obj *ffs_dev; + struct ffs_dev *ffs_dev; ENTER(); mutex_lock(&gfs_lock); @@ -329,7 +322,7 @@ done: static void functionfs_release_dev_callback(struct ffs_data *ffs_data) { - struct gfs_ffs_obj *ffs_dev; + struct ffs_dev *ffs_dev; ENTER(); mutex_lock(&gfs_lock); diff --git a/drivers/usb/gadget/u_fs.h b/drivers/usb/gadget/u_fs.h new file mode 100644 index 0000000..5d9229a --- /dev/null +++ b/drivers/usb/gadget/u_fs.h @@ -0,0 +1,28 @@ +/* + * u_fs.h + * + * Utility definitions for the FunctionFS + * + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef U_FFS_H +#define U_FFS_H + +#include + +struct ffs_dev { + const char *name; + bool mounted; + bool desc_ready; + struct ffs_data *ffs_data; +}; + +#endif /* U_FFS_H */ -- cgit v0.10.2 From 4b187fceec3c731815ff8e6a7317fd5ba50d1d5d Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:32 +0100 Subject: usb: gadget: FunctionFS: add devices management code This will be required in order to use the new function interface (usb_get_function_instance/usb_put_function_instance) Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyunmgin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index c0b4cf8..d17930d 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -90,7 +90,7 @@ enum ffs_state { /* * We've got descriptors and strings. We are or have called - * functionfs_ready_callback(). functionfs_bind() may have + * ffs_ready(). functionfs_bind() may have * been called but we don't know. * * This is the only state in which operations on epfiles may @@ -103,7 +103,7 @@ enum ffs_state { * we encounter an unrecoverable error. The only * unrecoverable error is situation when after reading strings * from user space we fail to initialise epfiles or - * functionfs_ready_callback() returns with error (<0). + * ffs_ready() returns with error (<0). * * In this state no open(2), read(2) or write(2) (both on ep0 * as well as epfile) may succeed (at this point epfiles are @@ -361,6 +361,15 @@ ffs_sb_create_file(struct super_block *sb, const char *name, void *data, const struct file_operations *fops, struct dentry **dentry_p); +/* Devices management *******************************************************/ + +DEFINE_MUTEX(ffs_lock); + +static struct ffs_dev *ffs_find_dev(const char *name); +static void *ffs_acquire_dev(const char *dev_name); +static void ffs_release_dev(struct ffs_data *ffs_data); +static int ffs_ready(struct ffs_data *ffs); +static void ffs_closed(struct ffs_data *ffs); /* Misc helper functions ****************************************************/ @@ -486,7 +495,7 @@ static ssize_t ffs_ep0_write(struct file *file, const char __user *buf, ffs->state = FFS_ACTIVE; mutex_unlock(&ffs->mutex); - ret = functionfs_ready_callback(ffs); + ret = ffs_ready(ffs); if (unlikely(ret < 0)) { ffs->state = FFS_CLOSING; return ret; @@ -1218,7 +1227,7 @@ ffs_fs_mount(struct file_system_type *t, int flags, return ERR_PTR(-ENOMEM); } - ffs_dev = functionfs_acquire_dev_callback(dev_name); + ffs_dev = ffs_acquire_dev(dev_name); if (IS_ERR(ffs_dev)) { ffs_data_put(ffs); return ERR_CAST(ffs_dev); @@ -1228,7 +1237,7 @@ ffs_fs_mount(struct file_system_type *t, int flags, rv = mount_nodev(t, flags, &data, ffs_sb_fill); if (IS_ERR(rv) && data.ffs_data) { - functionfs_release_dev_callback(data.ffs_data); + ffs_release_dev(data.ffs_data); ffs_data_put(data.ffs_data); } return rv; @@ -1241,7 +1250,7 @@ ffs_fs_kill_sb(struct super_block *sb) kill_litter_super(sb); if (sb->s_fs_info) { - functionfs_release_dev_callback(sb->s_fs_info); + ffs_release_dev(sb->s_fs_info); ffs_data_put(sb->s_fs_info); } } @@ -1354,7 +1363,7 @@ static void ffs_data_clear(struct ffs_data *ffs) ENTER(); if (test_and_clear_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags)) - functionfs_closed_callback(ffs); + ffs_closed(ffs); BUG_ON(ffs->gadget); @@ -2466,6 +2475,221 @@ static int ffs_func_revmap_intf(struct ffs_function *func, u8 intf) } +/* Devices management *******************************************************/ + +static LIST_HEAD(ffs_devices); + +static struct ffs_dev *_ffs_find_dev(const char *name) +{ + struct ffs_dev *dev; + + list_for_each_entry(dev, &ffs_devices, entry) { + if (!dev->name || !name) + continue; + if (strcmp(dev->name, name) == 0) + return dev; + } + + return NULL; +} + +/* + * ffs_lock must be taken by the caller of this function + */ +static struct ffs_dev *ffs_get_single_dev(void) +{ + struct ffs_dev *dev; + + if (list_is_singular(&ffs_devices)) { + dev = list_first_entry(&ffs_devices, struct ffs_dev, entry); + if (dev->single) + return dev; + } + + return NULL; +} + +/* + * ffs_lock must be taken by the caller of this function + */ +static struct ffs_dev *ffs_find_dev(const char *name) +{ + struct ffs_dev *dev; + + dev = ffs_get_single_dev(); + if (dev) + return dev; + + return _ffs_find_dev(name); +} + +/* + * ffs_lock must be taken by the caller of this function + */ +struct ffs_dev *ffs_alloc_dev(void) +{ + struct ffs_dev *dev; + int ret; + + if (ffs_get_single_dev()) + return ERR_PTR(-EBUSY); + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return ERR_PTR(-ENOMEM); + + if (list_empty(&ffs_devices)) { + ret = functionfs_init(); + if (ret) { + kfree(dev); + return ERR_PTR(ret); + } + } + + list_add(&dev->entry, &ffs_devices); + + return dev; +} + +/* + * ffs_lock must be taken by the caller of this function + * The caller is responsible for "name" being available whenever f_fs needs it + */ +static int _ffs_name_dev(struct ffs_dev *dev, const char *name) +{ + struct ffs_dev *existing; + + existing = _ffs_find_dev(name); + if (existing) + return -EBUSY; + + dev->name = name; + + return 0; +} + +/* + * The caller is responsible for "name" being available whenever f_fs needs it + */ +int ffs_name_dev(struct ffs_dev *dev, const char *name) +{ + int ret; + + ffs_dev_lock(); + ret = _ffs_name_dev(dev, name); + ffs_dev_unlock(); + + return ret; +} + +int ffs_single_dev(struct ffs_dev *dev) +{ + int ret; + + ret = 0; + ffs_dev_lock(); + + if (!list_is_singular(&ffs_devices)) + ret = -EBUSY; + else + dev->single = true; + + ffs_dev_unlock(); + return ret; +} + +/* + * ffs_lock must be taken by the caller of this function + */ +void ffs_free_dev(struct ffs_dev *dev) +{ + list_del(&dev->entry); + kfree(dev); + if (list_empty(&ffs_devices)) + functionfs_cleanup(); +} + +static void *ffs_acquire_dev(const char *dev_name) +{ + struct ffs_dev *ffs_dev; + + ENTER(); + ffs_dev_lock(); + + ffs_dev = ffs_find_dev(dev_name); + if (!ffs_dev) + ffs_dev = ERR_PTR(-ENODEV); + else if (ffs_dev->mounted) + ffs_dev = ERR_PTR(-EBUSY); + else + ffs_dev->mounted = true; + + ffs_dev_unlock(); + return ffs_dev; +} + +static void ffs_release_dev(struct ffs_data *ffs_data) +{ + struct ffs_dev *ffs_dev; + + ENTER(); + ffs_dev_lock(); + + ffs_dev = ffs_data->private_data; + if (ffs_dev) + ffs_dev->mounted = false; + + ffs_dev_unlock(); +} + +static int ffs_ready(struct ffs_data *ffs) +{ + struct ffs_dev *ffs_obj; + int ret = 0; + + ENTER(); + ffs_dev_lock(); + + ffs_obj = ffs->private_data; + if (!ffs_obj) { + ret = -EINVAL; + goto done; + } + if (WARN_ON(ffs_obj->desc_ready)) { + ret = -EBUSY; + goto done; + } + + ffs_obj->desc_ready = true; + ffs_obj->ffs_data = ffs; + + if (ffs_obj->ffs_ready_callback) + ret = ffs_obj->ffs_ready_callback(ffs); + +done: + ffs_dev_unlock(); + return ret; +} + +static void ffs_closed(struct ffs_data *ffs) +{ + struct ffs_dev *ffs_obj; + + ENTER(); + ffs_dev_lock(); + + ffs_obj = ffs->private_data; + if (!ffs_obj) + goto done; + + ffs_obj->desc_ready = false; + + if (ffs_obj->ffs_closed_callback) + ffs_obj->ffs_closed_callback(ffs); +done: + ffs_dev_unlock(); +} + /* Misc helper functions ****************************************************/ static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock) diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 1aaa103..074df0d 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -157,6 +157,8 @@ struct gfs_configuration { #endif }; +static int functionfs_ready_callback(struct ffs_data *ffs); +static void functionfs_closed_callback(struct ffs_data *ffs); static int gfs_bind(struct usb_composite_dev *cdev); static int gfs_unbind(struct usb_composite_dev *cdev); static int gfs_do_config(struct usb_configuration *c); @@ -170,172 +172,113 @@ static __refdata struct usb_composite_driver gfs_driver = { .unbind = gfs_unbind, }; -static DEFINE_MUTEX(gfs_lock); static unsigned int missing_funcs; static bool gfs_registered; static bool gfs_single_func; -static struct ffs_dev *ffs_tab; +static struct ffs_dev **ffs_tab; static int __init gfs_init(void) { int i; + int ret = 0; ENTER(); - if (!func_num) { + if (func_num < 2) { gfs_single_func = true; func_num = 1; } - ffs_tab = kcalloc(func_num, sizeof *ffs_tab, GFP_KERNEL); + ffs_tab = kcalloc(func_num, sizeof(*ffs_tab), GFP_KERNEL); if (!ffs_tab) return -ENOMEM; - if (!gfs_single_func) - for (i = 0; i < func_num; i++) - ffs_tab[i].name = func_names[i]; + for (i = 0; i < func_num; i++) { + ffs_dev_lock(); + ffs_tab[i] = ffs_alloc_dev(); + ffs_dev_unlock(); + if (IS_ERR(ffs_tab[i])) { + ret = PTR_ERR(ffs_tab[i]); + --i; + goto no_dev; + } + if (gfs_single_func) + ret = ffs_single_dev(ffs_tab[i]); + else + ret = ffs_name_dev(ffs_tab[i], func_names[i]); + if (ret) + goto no_dev; + ffs_tab[i]->ffs_ready_callback = functionfs_ready_callback; + ffs_tab[i]->ffs_closed_callback = functionfs_closed_callback; + } missing_funcs = func_num; - return functionfs_init(); + return 0; +no_dev: + ffs_dev_lock(); + while (i >= 0) + ffs_free_dev(ffs_tab[i--]); + ffs_dev_unlock(); + kfree(ffs_tab); + return ret; } module_init(gfs_init); static void __exit gfs_exit(void) { + int i; + ENTER(); - mutex_lock(&gfs_lock); + ffs_dev_lock(); if (gfs_registered) usb_composite_unregister(&gfs_driver); gfs_registered = false; - functionfs_cleanup(); - - mutex_unlock(&gfs_lock); + for (i = 0; i < func_num; i++) + ffs_free_dev(ffs_tab[i]); + ffs_dev_unlock(); kfree(ffs_tab); } module_exit(gfs_exit); -static struct ffs_dev *gfs_find_dev(const char *dev_name) -{ - int i; - - ENTER(); - - if (gfs_single_func) - return &ffs_tab[0]; - - for (i = 0; i < func_num; i++) - if (strcmp(ffs_tab[i].name, dev_name) == 0) - return &ffs_tab[i]; - - return NULL; -} - +/* + * The caller of this function takes ffs_lock + */ static int functionfs_ready_callback(struct ffs_data *ffs) { - struct ffs_dev *ffs_obj; - int ret; - - ENTER(); - mutex_lock(&gfs_lock); + int ret = 0; - ffs_obj = ffs->private_data; - if (!ffs_obj) { - ret = -EINVAL; - goto done; - } - - if (WARN_ON(ffs_obj->desc_ready)) { - ret = -EBUSY; - goto done; - } - ffs_obj->desc_ready = true; - ffs_obj->ffs_data = ffs; + if (--missing_funcs) + return 0; - if (--missing_funcs) { - ret = 0; - goto done; - } + if (gfs_registered) + return -EBUSY; - if (gfs_registered) { - ret = -EBUSY; - goto done; - } gfs_registered = true; ret = usb_composite_probe(&gfs_driver); if (unlikely(ret < 0)) gfs_registered = false; - -done: - mutex_unlock(&gfs_lock); + return ret; } +/* + * The caller of this function takes ffs_lock + */ static void functionfs_closed_callback(struct ffs_data *ffs) { - struct ffs_dev *ffs_obj; - - ENTER(); - mutex_lock(&gfs_lock); - - ffs_obj = ffs->private_data; - if (!ffs_obj) - goto done; - - ffs_obj->desc_ready = false; missing_funcs++; if (gfs_registered) usb_composite_unregister(&gfs_driver); gfs_registered = false; - -done: - mutex_unlock(&gfs_lock); -} - -static void *functionfs_acquire_dev_callback(const char *dev_name) -{ - struct ffs_dev *ffs_dev; - - ENTER(); - mutex_lock(&gfs_lock); - - ffs_dev = gfs_find_dev(dev_name); - if (!ffs_dev) { - ffs_dev = ERR_PTR(-ENODEV); - goto done; - } - - if (ffs_dev->mounted) { - ffs_dev = ERR_PTR(-EBUSY); - goto done; - } - ffs_dev->mounted = true; - -done: - mutex_unlock(&gfs_lock); - return ffs_dev; -} - -static void functionfs_release_dev_callback(struct ffs_data *ffs_data) -{ - struct ffs_dev *ffs_dev; - - ENTER(); - mutex_lock(&gfs_lock); - - ffs_dev = ffs_data->private_data; - if (ffs_dev) - ffs_dev->mounted = false; - - mutex_unlock(&gfs_lock); } /* - * It is assumed that gfs_bind is called from a context where gfs_lock is held + * It is assumed that gfs_bind is called from a context where ffs_lock is held */ static int gfs_bind(struct usb_composite_dev *cdev) { @@ -422,10 +365,10 @@ static int gfs_bind(struct usb_composite_dev *cdev) gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id; for (i = func_num; i--; ) { - ret = functionfs_bind(ffs_tab[i].ffs_data, cdev); + ret = functionfs_bind(ffs_tab[i]->ffs_data, cdev); if (unlikely(ret < 0)) { while (++i < func_num) - functionfs_unbind(ffs_tab[i].ffs_data); + functionfs_unbind(ffs_tab[i]->ffs_data); goto error_rndis; } } @@ -448,7 +391,7 @@ static int gfs_bind(struct usb_composite_dev *cdev) error_unbind: for (i = 0; i < func_num; i++) - functionfs_unbind(ffs_tab[i].ffs_data); + functionfs_unbind(ffs_tab[i]->ffs_data); error_rndis: #ifdef CONFIG_USB_FUNCTIONFS_RNDIS usb_put_function_instance(fi_rndis); @@ -464,7 +407,7 @@ error: } /* - * It is assumed that gfs_unbind is called from a context where gfs_lock is held + * It is assumed that gfs_unbind is called from a context where ffs_lock is held */ static int gfs_unbind(struct usb_composite_dev *cdev) { @@ -497,15 +440,15 @@ static int gfs_unbind(struct usb_composite_dev *cdev) * do...? */ for (i = func_num; i--; ) - if (ffs_tab[i].ffs_data) - functionfs_unbind(ffs_tab[i].ffs_data); + if (ffs_tab[i]->ffs_data) + functionfs_unbind(ffs_tab[i]->ffs_data); return 0; } /* * It is assumed that gfs_do_config is called from a context where - * gfs_lock is held + * ffs_lock is held */ static int gfs_do_config(struct usb_configuration *c) { @@ -529,7 +472,7 @@ static int gfs_do_config(struct usb_configuration *c) } for (i = 0; i < func_num; i++) { - ret = functionfs_bind_config(c->cdev, c, ffs_tab[i].ffs_data); + ret = functionfs_bind_config(c->cdev, c, ffs_tab[i]->ffs_data); if (unlikely(ret < 0)) return ret; } diff --git a/drivers/usb/gadget/u_fs.h b/drivers/usb/gadget/u_fs.h index 5d9229a..2d00f9d 100644 --- a/drivers/usb/gadget/u_fs.h +++ b/drivers/usb/gadget/u_fs.h @@ -17,12 +17,36 @@ #define U_FFS_H #include +#include +#include struct ffs_dev { const char *name; bool mounted; bool desc_ready; + bool single; struct ffs_data *ffs_data; + struct list_head entry; + + int (*ffs_ready_callback)(struct ffs_data *ffs); + void (*ffs_closed_callback)(struct ffs_data *ffs); }; +extern struct mutex ffs_lock; + +static inline void ffs_dev_lock(void) +{ + mutex_lock(&ffs_lock); +} + +static inline void ffs_dev_unlock(void) +{ + mutex_unlock(&ffs_lock); +} + +struct ffs_dev *ffs_alloc_dev(void); +int ffs_name_dev(struct ffs_dev *dev, const char *name); +int ffs_single_dev(struct ffs_dev *dev); +void ffs_free_dev(struct ffs_dev *dev); + #endif /* U_FFS_H */ diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h index 65d0a88..9c1e926 100644 --- a/include/linux/usb/functionfs.h +++ b/include/linux/usb/functionfs.h @@ -8,10 +8,6 @@ struct ffs_data; struct usb_composite_dev; struct usb_configuration; - -static int functionfs_init(void) __attribute__((warn_unused_result)); -static void functionfs_cleanup(void); - static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev) __attribute__((warn_unused_result, nonnull)); static void functionfs_unbind(struct ffs_data *ffs) @@ -23,14 +19,4 @@ static int functionfs_bind_config(struct usb_composite_dev *cdev, __attribute__((warn_unused_result, nonnull)); -static int functionfs_ready_callback(struct ffs_data *ffs) - __attribute__((warn_unused_result, nonnull)); -static void functionfs_closed_callback(struct ffs_data *ffs) - __attribute__((nonnull)); -static void *functionfs_acquire_dev_callback(const char *dev_name) - __attribute__((warn_unused_result, nonnull)); -static void functionfs_release_dev_callback(struct ffs_data *ffs_data) - __attribute__((nonnull)); - - #endif -- cgit v0.10.2 From 5920cda627688c3229fd63157ff031f3f174175e Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:33 +0100 Subject: usb: gadget: FunctionFS: convert to new function interface with backward compatibility This is required in order to integrate configfs support. f_fs needs to be a separately compiled module and so it needs to use the new interface. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index aa3610e..1761a3b 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -539,6 +539,9 @@ config USB_F_RNDIS config USB_F_MASS_STORAGE tristate +config USB_F_FS + tristate + choice tristate "USB Gadget Drivers" default USB_ETH diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 0c40277..6cccdfe 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -61,6 +61,8 @@ usb_f_rndis-y := f_rndis.o rndis.o obj-$(CONFIG_USB_F_RNDIS) += usb_f_rndis.o usb_f_mass_storage-y := f_mass_storage.o storage_common.o obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o +usb_f_fs-y := f_fs.o +obj-$(CONFIG_USB_F_FS) += usb_f_fs.o # # USB gadget drivers diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index d17930d..8d318ea 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -57,210 +58,6 @@ #define vla_ptr(ptr, groupname, name) \ ((void *) ((char *)ptr + groupname##_##name##__offset)) -/* Debugging ****************************************************************/ - -#ifdef VERBOSE_DEBUG -#ifndef pr_vdebug -# define pr_vdebug pr_debug -#endif /* pr_vdebug */ -# define ffs_dump_mem(prefix, ptr, len) \ - print_hex_dump_bytes(pr_fmt(prefix ": "), DUMP_PREFIX_NONE, ptr, len) -#else -#ifndef pr_vdebug -# define pr_vdebug(...) do { } while (0) -#endif /* pr_vdebug */ -# define ffs_dump_mem(prefix, ptr, len) do { } while (0) -#endif /* VERBOSE_DEBUG */ - -#define ENTER() pr_vdebug("%s()\n", __func__) - - -/* The data structure and setup file ****************************************/ - -enum ffs_state { - /* - * Waiting for descriptors and strings. - * - * In this state no open(2), read(2) or write(2) on epfiles - * may succeed (which should not be the problem as there - * should be no such files opened in the first place). - */ - FFS_READ_DESCRIPTORS, - FFS_READ_STRINGS, - - /* - * We've got descriptors and strings. We are or have called - * ffs_ready(). functionfs_bind() may have - * been called but we don't know. - * - * This is the only state in which operations on epfiles may - * succeed. - */ - FFS_ACTIVE, - - /* - * All endpoints have been closed. This state is also set if - * we encounter an unrecoverable error. The only - * unrecoverable error is situation when after reading strings - * from user space we fail to initialise epfiles or - * ffs_ready() returns with error (<0). - * - * In this state no open(2), read(2) or write(2) (both on ep0 - * as well as epfile) may succeed (at this point epfiles are - * unlinked and all closed so this is not a problem; ep0 is - * also closed but ep0 file exists and so open(2) on ep0 must - * fail). - */ - FFS_CLOSING -}; - - -enum ffs_setup_state { - /* There is no setup request pending. */ - FFS_NO_SETUP, - /* - * User has read events and there was a setup request event - * there. The next read/write on ep0 will handle the - * request. - */ - FFS_SETUP_PENDING, - /* - * There was event pending but before user space handled it - * some other event was introduced which canceled existing - * setup. If this state is set read/write on ep0 return - * -EIDRM. This state is only set when adding event. - */ - FFS_SETUP_CANCELED -}; - - - -struct ffs_epfile; -struct ffs_function; - -struct ffs_data { - struct usb_gadget *gadget; - - /* - * Protect access read/write operations, only one read/write - * at a time. As a consequence protects ep0req and company. - * While setup request is being processed (queued) this is - * held. - */ - struct mutex mutex; - - /* - * Protect access to endpoint related structures (basically - * usb_ep_queue(), usb_ep_dequeue(), etc. calls) except for - * endpoint zero. - */ - spinlock_t eps_lock; - - /* - * XXX REVISIT do we need our own request? Since we are not - * handling setup requests immediately user space may be so - * slow that another setup will be sent to the gadget but this - * time not to us but another function and then there could be - * a race. Is that the case? Or maybe we can use cdev->req - * after all, maybe we just need some spinlock for that? - */ - struct usb_request *ep0req; /* P: mutex */ - struct completion ep0req_completion; /* P: mutex */ - int ep0req_status; /* P: mutex */ - - /* reference counter */ - atomic_t ref; - /* how many files are opened (EP0 and others) */ - atomic_t opened; - - /* EP0 state */ - enum ffs_state state; - - /* - * Possible transitions: - * + FFS_NO_SETUP -> FFS_SETUP_PENDING -- P: ev.waitq.lock - * happens only in ep0 read which is P: mutex - * + FFS_SETUP_PENDING -> FFS_NO_SETUP -- P: ev.waitq.lock - * happens only in ep0 i/o which is P: mutex - * + FFS_SETUP_PENDING -> FFS_SETUP_CANCELED -- P: ev.waitq.lock - * + FFS_SETUP_CANCELED -> FFS_NO_SETUP -- cmpxchg - */ - enum ffs_setup_state setup_state; - -#define FFS_SETUP_STATE(ffs) \ - ((enum ffs_setup_state)cmpxchg(&(ffs)->setup_state, \ - FFS_SETUP_CANCELED, FFS_NO_SETUP)) - - /* Events & such. */ - struct { - u8 types[4]; - unsigned short count; - /* XXX REVISIT need to update it in some places, or do we? */ - unsigned short can_stall; - struct usb_ctrlrequest setup; - - wait_queue_head_t waitq; - } ev; /* the whole structure, P: ev.waitq.lock */ - - /* Flags */ - unsigned long flags; -#define FFS_FL_CALL_CLOSED_CALLBACK 0 -#define FFS_FL_BOUND 1 - - /* Active function */ - struct ffs_function *func; - - /* - * Device name, write once when file system is mounted. - * Intended for user to read if she wants. - */ - const char *dev_name; - /* Private data for our user (ie. gadget). Managed by user. */ - void *private_data; - - /* filled by __ffs_data_got_descs() */ - /* - * Real descriptors are 16 bytes after raw_descs (so you need - * to skip 16 bytes (ie. ffs->raw_descs + 16) to get to the - * first full speed descriptor). raw_descs_length and - * raw_fs_descs_length do not have those 16 bytes added. - */ - const void *raw_descs; - unsigned raw_descs_length; - unsigned raw_fs_descs_length; - unsigned fs_descs_count; - unsigned hs_descs_count; - - unsigned short strings_count; - unsigned short interfaces_count; - unsigned short eps_count; - unsigned short _pad1; - - /* filled by __ffs_data_got_strings() */ - /* ids in stringtabs are set in functionfs_bind() */ - const void *raw_strings; - struct usb_gadget_strings **stringtabs; - - /* - * File system's super block, write once when file system is - * mounted. - */ - struct super_block *sb; - - /* File permissions, written once when fs is mounted */ - struct ffs_file_perms { - umode_t mode; - kuid_t uid; - kgid_t gid; - } file_perms; - - /* - * The endpoint files, filled by ffs_epfiles_create(), - * destroyed by ffs_epfiles_destroy(). - */ - struct ffs_epfile *epfiles; -}; - /* Reference counter handling */ static void ffs_data_get(struct ffs_data *ffs); static void ffs_data_put(struct ffs_data *ffs); @@ -300,15 +97,19 @@ static struct ffs_function *ffs_func_from_usb(struct usb_function *f) return container_of(f, struct ffs_function, function); } +#ifdef USB_FFS_INCLUDED static void ffs_func_free(struct ffs_function *func); +#endif static void ffs_func_eps_disable(struct ffs_function *func); static int __must_check ffs_func_eps_enable(struct ffs_function *func); static int ffs_func_bind(struct usb_configuration *, struct usb_function *); -static void ffs_func_unbind(struct usb_configuration *, +#ifdef USB_FFS_INCLUDED +static void old_ffs_func_unbind(struct usb_configuration *, struct usb_function *); +#endif static int ffs_func_set_alt(struct usb_function *, unsigned, unsigned); static void ffs_func_disable(struct usb_function *); static int ffs_func_setup(struct usb_function *, @@ -364,6 +165,9 @@ ffs_sb_create_file(struct super_block *sb, const char *name, void *data, /* Devices management *******************************************************/ DEFINE_MUTEX(ffs_lock); +#ifndef USB_FFS_INCLUDED +EXPORT_SYMBOL(ffs_lock); +#endif static struct ffs_dev *ffs_find_dev(const char *name); static void *ffs_acquire_dev(const char *dev_name); @@ -1499,6 +1303,8 @@ static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count) kfree(epfiles); } +#ifdef USB_FFS_INCLUDED + static int functionfs_bind_config(struct usb_composite_dev *cdev, struct usb_configuration *c, struct ffs_data *ffs) @@ -1516,7 +1322,7 @@ static int functionfs_bind_config(struct usb_composite_dev *cdev, func->function.strings = ffs->stringtabs; func->function.bind = ffs_func_bind; - func->function.unbind = ffs_func_unbind; + func->function.unbind = old_ffs_func_unbind; func->function.set_alt = ffs_func_set_alt; func->function.disable = ffs_func_disable; func->function.setup = ffs_func_setup; @@ -1565,6 +1371,8 @@ static void ffs_func_free(struct ffs_function *func) kfree(func); } +#endif + static void ffs_func_eps_disable(struct ffs_function *func) { struct ffs_ep *ep = func->eps; @@ -2227,8 +2035,59 @@ static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep, return 0; } -static int ffs_func_bind(struct usb_configuration *c, - struct usb_function *f) +#ifndef USB_FFS_INCLUDED +static inline struct f_fs_opts *ffs_do_functionfs_bind(struct usb_function *f, + struct usb_configuration *c) +{ + struct ffs_function *func = ffs_func_from_usb(f); + struct f_fs_opts *ffs_opts = + container_of(f->fi, struct f_fs_opts, func_inst); + int ret; + + ENTER(); + + /* + * Legacy gadget triggers binding in functionfs_ready_callback, + * which already uses locking; taking the same lock here would + * cause a deadlock. + * + * Configfs-enabled gadgets however do need ffs_dev_lock. + */ + if (!ffs_opts->no_configfs) + ffs_dev_lock(); + ret = ffs_opts->dev->desc_ready ? 0 : -ENODEV; + func->ffs = ffs_opts->dev->ffs_data; + if (!ffs_opts->no_configfs) + ffs_dev_unlock(); + if (ret) + return ERR_PTR(ret); + + func->conf = c; + func->gadget = c->cdev->gadget; + + ffs_data_get(func->ffs); + + /* + * in drivers/usb/gadget/configfs.c:configfs_composite_bind() + * configurations are bound in sequence with list_for_each_entry, + * in each configuration its functions are bound in sequence + * with list_for_each_entry, so we assume no race condition + * with regard to ffs_opts->bound access + */ + if (!ffs_opts->refcnt) { + ret = functionfs_bind(func->ffs, c->cdev); + if (ret) + return ERR_PTR(ret); + } + ffs_opts->refcnt++; + func->function.strings = func->ffs->stringtabs; + + return ffs_opts; +} +#endif + +static int _ffs_func_bind(struct usb_configuration *c, + struct usb_function *f) { struct ffs_function *func = ffs_func_from_usb(f); struct ffs_data *ffs = func->ffs; @@ -2328,10 +2187,25 @@ error: return ret; } +static int ffs_func_bind(struct usb_configuration *c, + struct usb_function *f) +{ +#ifndef USB_FFS_INCLUDED + struct f_fs_opts *ffs_opts = ffs_do_functionfs_bind(f, c); + + if (IS_ERR(ffs_opts)) + return PTR_ERR(ffs_opts); +#endif + + return _ffs_func_bind(c, f); +} + /* Other USB function hooks *************************************************/ -static void ffs_func_unbind(struct usb_configuration *c, +#ifdef USB_FFS_INCLUDED + +static void old_ffs_func_unbind(struct usb_configuration *c, struct usb_function *f) { struct ffs_function *func = ffs_func_from_usb(f); @@ -2349,6 +2223,8 @@ static void ffs_func_unbind(struct usb_configuration *c, ffs_func_free(func); } +#endif + static int ffs_func_set_alt(struct usb_function *f, unsigned interface, unsigned alt) { @@ -2523,6 +2399,116 @@ static struct ffs_dev *ffs_find_dev(const char *name) return _ffs_find_dev(name); } +/* Function registration interface ******************************************/ + +#ifndef USB_FFS_INCLUDED + +static void ffs_free_inst(struct usb_function_instance *f) +{ + struct f_fs_opts *opts; + + opts = to_f_fs_opts(f); + ffs_dev_lock(); + ffs_free_dev(opts->dev); + ffs_dev_unlock(); + kfree(opts); +} + +static struct usb_function_instance *ffs_alloc_inst(void) +{ + struct f_fs_opts *opts; + struct ffs_dev *dev; + + opts = kzalloc(sizeof(*opts), GFP_KERNEL); + if (!opts) + return ERR_PTR(-ENOMEM); + + opts->func_inst.free_func_inst = ffs_free_inst; + ffs_dev_lock(); + dev = ffs_alloc_dev(); + ffs_dev_unlock(); + if (IS_ERR(dev)) { + kfree(opts); + return ERR_CAST(dev); + } + opts->dev = dev; + + return &opts->func_inst; +} + +static void ffs_free(struct usb_function *f) +{ + kfree(ffs_func_from_usb(f)); +} + +static void ffs_func_unbind(struct usb_configuration *c, + struct usb_function *f) +{ + struct ffs_function *func = ffs_func_from_usb(f); + struct ffs_data *ffs = func->ffs; + struct f_fs_opts *opts = + container_of(f->fi, struct f_fs_opts, func_inst); + struct ffs_ep *ep = func->eps; + unsigned count = ffs->eps_count; + unsigned long flags; + + ENTER(); + if (ffs->func == func) { + ffs_func_eps_disable(func); + ffs->func = NULL; + } + + if (!--opts->refcnt) + functionfs_unbind(ffs); + + /* cleanup after autoconfig */ + spin_lock_irqsave(&func->ffs->eps_lock, flags); + do { + if (ep->ep && ep->req) + usb_ep_free_request(ep->ep, ep->req); + ep->req = NULL; + ++ep; + } while (--count); + spin_unlock_irqrestore(&func->ffs->eps_lock, flags); + kfree(func->eps); + func->eps = NULL; + /* + * eps, descriptors and interfaces_nums are allocated in the + * same chunk so only one free is required. + */ + func->function.fs_descriptors = NULL; + func->function.hs_descriptors = NULL; + func->interfaces_nums = NULL; + + ffs_event_add(ffs, FUNCTIONFS_UNBIND); +} + +static struct usb_function *ffs_alloc(struct usb_function_instance *fi) +{ + struct ffs_function *func; + + ENTER(); + + func = kzalloc(sizeof(*func), GFP_KERNEL); + if (unlikely(!func)) + return ERR_PTR(-ENOMEM); + + func->function.name = "Function FS Gadget"; + + func->function.bind = ffs_func_bind; + func->function.unbind = ffs_func_unbind; + func->function.set_alt = ffs_func_set_alt; + func->function.disable = ffs_func_disable; + func->function.setup = ffs_func_setup; + func->function.suspend = ffs_func_suspend; + func->function.resume = ffs_func_resume; + func->function.free_func = ffs_free; + + return &func->function; +} + +#endif + /* * ffs_lock must be taken by the caller of this function */ @@ -2581,6 +2567,9 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name) return ret; } +#ifndef USB_FFS_INCLUDED +EXPORT_SYMBOL(ffs_name_dev); +#endif int ffs_single_dev(struct ffs_dev *dev) { @@ -2597,6 +2586,9 @@ int ffs_single_dev(struct ffs_dev *dev) ffs_dev_unlock(); return ret; } +#ifndef USB_FFS_INCLUDED +EXPORT_SYMBOL(ffs_single_dev); +#endif /* * ffs_lock must be taken by the caller of this function @@ -2621,6 +2613,9 @@ static void *ffs_acquire_dev(const char *dev_name) ffs_dev = ERR_PTR(-ENODEV); else if (ffs_dev->mounted) ffs_dev = ERR_PTR(-EBUSY); + else if (ffs_dev->ffs_acquire_dev_callback && + ffs_dev->ffs_acquire_dev_callback(ffs_dev)) + ffs_dev = ERR_PTR(-ENODEV); else ffs_dev->mounted = true; @@ -2638,6 +2633,9 @@ static void ffs_release_dev(struct ffs_data *ffs_data) ffs_dev = ffs_data->private_data; if (ffs_dev) ffs_dev->mounted = false; + + if (ffs_dev->ffs_release_dev_callback) + ffs_dev->ffs_release_dev_callback(ffs_dev); ffs_dev_unlock(); } @@ -2720,3 +2718,9 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len) return data; } + +#ifndef USB_FFS_INCLUDED +DECLARE_USB_FUNCTION_INIT(ffs, ffs_alloc_inst, ffs_alloc); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michal Nazarewicz"); +#endif diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 074df0d..ffde36f 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -54,6 +54,7 @@ static struct usb_function *f_rndis; # endif #endif +#define USB_FFS_INCLUDED #include "f_fs.c" #define DRIVER_NAME "g_ffs" diff --git a/drivers/usb/gadget/u_fs.h b/drivers/usb/gadget/u_fs.h index 2d00f9d..d60a9dd 100644 --- a/drivers/usb/gadget/u_fs.h +++ b/drivers/usb/gadget/u_fs.h @@ -20,6 +20,22 @@ #include #include +#ifdef VERBOSE_DEBUG +#ifndef pr_vdebug +# define pr_vdebug pr_debug +#endif /* pr_vdebug */ +# define ffs_dump_mem(prefix, ptr, len) \ + print_hex_dump_bytes(pr_fmt(prefix ": "), DUMP_PREFIX_NONE, ptr, len) +#else +#ifndef pr_vdebug +# define pr_vdebug(...) do { } while (0) +#endif /* pr_vdebug */ +# define ffs_dump_mem(prefix, ptr, len) do { } while (0) +#endif /* VERBOSE_DEBUG */ + +#define ENTER() pr_vdebug("%s()\n", __func__) + + struct ffs_dev { const char *name; bool mounted; @@ -30,6 +46,8 @@ struct ffs_dev { int (*ffs_ready_callback)(struct ffs_data *ffs); void (*ffs_closed_callback)(struct ffs_data *ffs); + void *(*ffs_acquire_dev_callback)(struct ffs_dev *dev); + void (*ffs_release_dev_callback)(struct ffs_dev *dev); }; extern struct mutex ffs_lock; @@ -49,4 +67,200 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name); int ffs_single_dev(struct ffs_dev *dev); void ffs_free_dev(struct ffs_dev *dev); +struct ffs_epfile; +struct ffs_function; + +enum ffs_state { + /* + * Waiting for descriptors and strings. + * + * In this state no open(2), read(2) or write(2) on epfiles + * may succeed (which should not be the problem as there + * should be no such files opened in the first place). + */ + FFS_READ_DESCRIPTORS, + FFS_READ_STRINGS, + + /* + * We've got descriptors and strings. We are or have called + * functionfs_ready_callback(). functionfs_bind() may have + * been called but we don't know. + * + * This is the only state in which operations on epfiles may + * succeed. + */ + FFS_ACTIVE, + + /* + * All endpoints have been closed. This state is also set if + * we encounter an unrecoverable error. The only + * unrecoverable error is situation when after reading strings + * from user space we fail to initialise epfiles or + * functionfs_ready_callback() returns with error (<0). + * + * In this state no open(2), read(2) or write(2) (both on ep0 + * as well as epfile) may succeed (at this point epfiles are + * unlinked and all closed so this is not a problem; ep0 is + * also closed but ep0 file exists and so open(2) on ep0 must + * fail). + */ + FFS_CLOSING +}; + +enum ffs_setup_state { + /* There is no setup request pending. */ + FFS_NO_SETUP, + /* + * User has read events and there was a setup request event + * there. The next read/write on ep0 will handle the + * request. + */ + FFS_SETUP_PENDING, + /* + * There was event pending but before user space handled it + * some other event was introduced which canceled existing + * setup. If this state is set read/write on ep0 return + * -EIDRM. This state is only set when adding event. + */ + FFS_SETUP_CANCELED +}; + +struct ffs_data { + struct usb_gadget *gadget; + + /* + * Protect access read/write operations, only one read/write + * at a time. As a consequence protects ep0req and company. + * While setup request is being processed (queued) this is + * held. + */ + struct mutex mutex; + + /* + * Protect access to endpoint related structures (basically + * usb_ep_queue(), usb_ep_dequeue(), etc. calls) except for + * endpoint zero. + */ + spinlock_t eps_lock; + + /* + * XXX REVISIT do we need our own request? Since we are not + * handling setup requests immediately user space may be so + * slow that another setup will be sent to the gadget but this + * time not to us but another function and then there could be + * a race. Is that the case? Or maybe we can use cdev->req + * after all, maybe we just need some spinlock for that? + */ + struct usb_request *ep0req; /* P: mutex */ + struct completion ep0req_completion; /* P: mutex */ + int ep0req_status; /* P: mutex */ + + /* reference counter */ + atomic_t ref; + /* how many files are opened (EP0 and others) */ + atomic_t opened; + + /* EP0 state */ + enum ffs_state state; + + /* + * Possible transitions: + * + FFS_NO_SETUP -> FFS_SETUP_PENDING -- P: ev.waitq.lock + * happens only in ep0 read which is P: mutex + * + FFS_SETUP_PENDING -> FFS_NO_SETUP -- P: ev.waitq.lock + * happens only in ep0 i/o which is P: mutex + * + FFS_SETUP_PENDING -> FFS_SETUP_CANCELED -- P: ev.waitq.lock + * + FFS_SETUP_CANCELED -> FFS_NO_SETUP -- cmpxchg + */ + enum ffs_setup_state setup_state; + +#define FFS_SETUP_STATE(ffs) \ + ((enum ffs_setup_state)cmpxchg(&(ffs)->setup_state, \ + FFS_SETUP_CANCELED, FFS_NO_SETUP)) + + /* Events & such. */ + struct { + u8 types[4]; + unsigned short count; + /* XXX REVISIT need to update it in some places, or do we? */ + unsigned short can_stall; + struct usb_ctrlrequest setup; + + wait_queue_head_t waitq; + } ev; /* the whole structure, P: ev.waitq.lock */ + + /* Flags */ + unsigned long flags; +#define FFS_FL_CALL_CLOSED_CALLBACK 0 +#define FFS_FL_BOUND 1 + + /* Active function */ + struct ffs_function *func; + + /* + * Device name, write once when file system is mounted. + * Intended for user to read if she wants. + */ + const char *dev_name; + /* Private data for our user (ie. gadget). Managed by user. */ + void *private_data; + + /* filled by __ffs_data_got_descs() */ + /* + * Real descriptors are 16 bytes after raw_descs (so you need + * to skip 16 bytes (ie. ffs->raw_descs + 16) to get to the + * first full speed descriptor). raw_descs_length and + * raw_fs_descs_length do not have those 16 bytes added. + */ + const void *raw_descs; + unsigned raw_descs_length; + unsigned raw_fs_descs_length; + unsigned fs_descs_count; + unsigned hs_descs_count; + + unsigned short strings_count; + unsigned short interfaces_count; + unsigned short eps_count; + unsigned short _pad1; + + /* filled by __ffs_data_got_strings() */ + /* ids in stringtabs are set in functionfs_bind() */ + const void *raw_strings; + struct usb_gadget_strings **stringtabs; + + /* + * File system's super block, write once when file system is + * mounted. + */ + struct super_block *sb; + + /* File permissions, written once when fs is mounted */ + struct ffs_file_perms { + umode_t mode; + kuid_t uid; + kgid_t gid; + } file_perms; + + /* + * The endpoint files, filled by ffs_epfiles_create(), + * destroyed by ffs_epfiles_destroy(). + */ + struct ffs_epfile *epfiles; +}; + + +#ifndef USB_FFS_INCLUDED +struct f_fs_opts { + struct usb_function_instance func_inst; + struct ffs_dev *dev; + unsigned refcnt; + bool no_configfs; +}; + +static inline struct f_fs_opts *to_f_fs_opts(struct usb_function_instance *fi) +{ + return container_of(fi, struct f_fs_opts, func_inst); +} +#endif + #endif /* U_FFS_H */ diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h index 9c1e926..3448efb 100644 --- a/include/linux/usb/functionfs.h +++ b/include/linux/usb/functionfs.h @@ -3,6 +3,7 @@ #include +#ifdef USB_FFS_INCLUDED struct ffs_data; struct usb_composite_dev; @@ -20,3 +21,4 @@ static int functionfs_bind_config(struct usb_composite_dev *cdev, #endif +#endif -- cgit v0.10.2 From 6f823cd5305c78ad1282fab8634b369eac4620b1 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:34 +0100 Subject: usb: gadget: g_ffs: convert to new interface of f_fs Prepare for configfs integration. Use the new interface so that f_fs can be made a module. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 1761a3b..97eb540 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -874,6 +874,7 @@ config USB_GADGETFS config USB_FUNCTIONFS tristate "Function Filesystem" select USB_LIBCOMPOSITE + select USB_F_FS select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS) help The Function Filesystem (FunctionFS) lets one create USB diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index ffde36f..fe12e6a 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -13,13 +13,7 @@ #define pr_fmt(fmt) "g_ffs: " fmt #include -/* - * kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ + #if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS #include @@ -54,8 +48,7 @@ static struct usb_function *f_rndis; # endif #endif -#define USB_FFS_INCLUDED -#include "f_fs.c" +#include "u_fs.h" #define DRIVER_NAME "g_ffs" #define DRIVER_DESC "USB Function Filesystem" @@ -139,6 +132,7 @@ static struct usb_gadget_strings *gfs_dev_strings[] = { struct gfs_configuration { struct usb_configuration c; int (*eth)(struct usb_configuration *c); + int num; } gfs_configurations[] = { #ifdef CONFIG_USB_FUNCTIONFS_RNDIS { @@ -158,12 +152,15 @@ struct gfs_configuration { #endif }; +static void *functionfs_acquire_dev(struct ffs_dev *dev); +static void functionfs_release_dev(struct ffs_dev *dev); static int functionfs_ready_callback(struct ffs_data *ffs); static void functionfs_closed_callback(struct ffs_data *ffs); static int gfs_bind(struct usb_composite_dev *cdev); static int gfs_unbind(struct usb_composite_dev *cdev); static int gfs_do_config(struct usb_configuration *c); + static __refdata struct usb_composite_driver gfs_driver = { .name = DRIVER_NAME, .dev = &gfs_dev_desc, @@ -176,10 +173,26 @@ static __refdata struct usb_composite_driver gfs_driver = { static unsigned int missing_funcs; static bool gfs_registered; static bool gfs_single_func; -static struct ffs_dev **ffs_tab; +static struct usb_function_instance **fi_ffs; +static struct usb_function **f_ffs[] = { +#ifdef CONFIG_USB_FUNCTIONFS_RNDIS + NULL, +#endif + +#ifdef CONFIG_USB_FUNCTIONFS_ETH + NULL, +#endif + +#ifdef CONFIG_USB_FUNCTIONFS_GENERIC + NULL, +#endif +}; + +#define N_CONF ARRAY_SIZE(f_ffs) static int __init gfs_init(void) { + struct f_fs_opts *opts; int i; int ret = 0; @@ -190,38 +203,53 @@ static int __init gfs_init(void) func_num = 1; } - ffs_tab = kcalloc(func_num, sizeof(*ffs_tab), GFP_KERNEL); - if (!ffs_tab) - return -ENOMEM; + /* + * Allocate in one chunk for easier maintenance + */ + f_ffs[0] = kcalloc(func_num * N_CONF, sizeof(*f_ffs), GFP_KERNEL); + if (!f_ffs[0]) { + ret = -ENOMEM; + goto no_func; + } + for (i = 1; i < N_CONF; ++i) + f_ffs[i] = f_ffs[0] + i * func_num; + + fi_ffs = kcalloc(func_num, sizeof(*fi_ffs), GFP_KERNEL); + if (!fi_ffs) { + ret = -ENOMEM; + goto no_func; + } for (i = 0; i < func_num; i++) { - ffs_dev_lock(); - ffs_tab[i] = ffs_alloc_dev(); - ffs_dev_unlock(); - if (IS_ERR(ffs_tab[i])) { - ret = PTR_ERR(ffs_tab[i]); + fi_ffs[i] = usb_get_function_instance("ffs"); + if (IS_ERR(fi_ffs[i])) { + ret = PTR_ERR(fi_ffs[i]); --i; goto no_dev; } + opts = to_f_fs_opts(fi_ffs[i]); if (gfs_single_func) - ret = ffs_single_dev(ffs_tab[i]); + ret = ffs_single_dev(opts->dev); else - ret = ffs_name_dev(ffs_tab[i], func_names[i]); + ret = ffs_name_dev(opts->dev, func_names[i]); if (ret) goto no_dev; - ffs_tab[i]->ffs_ready_callback = functionfs_ready_callback; - ffs_tab[i]->ffs_closed_callback = functionfs_closed_callback; + opts->dev->ffs_ready_callback = functionfs_ready_callback; + opts->dev->ffs_closed_callback = functionfs_closed_callback; + opts->dev->ffs_acquire_dev_callback = functionfs_acquire_dev; + opts->dev->ffs_release_dev_callback = functionfs_release_dev; + opts->no_configfs = true; } missing_funcs = func_num; return 0; no_dev: - ffs_dev_lock(); while (i >= 0) - ffs_free_dev(ffs_tab[i--]); - ffs_dev_unlock(); - kfree(ffs_tab); + usb_put_function_instance(fi_ffs[i--]); + kfree(fi_ffs); +no_func: + kfree(f_ffs[0]); return ret; } module_init(gfs_init); @@ -231,19 +259,33 @@ static void __exit gfs_exit(void) int i; ENTER(); - ffs_dev_lock(); if (gfs_registered) usb_composite_unregister(&gfs_driver); gfs_registered = false; + kfree(f_ffs[0]); + for (i = 0; i < func_num; i++) - ffs_free_dev(ffs_tab[i]); - ffs_dev_unlock(); - kfree(ffs_tab); + usb_put_function_instance(fi_ffs[i]); + + kfree(fi_ffs); } module_exit(gfs_exit); +static void *functionfs_acquire_dev(struct ffs_dev *dev) +{ + if (!try_module_get(THIS_MODULE)) + return ERR_PTR(-ENODEV); + + return 0; +} + +static void functionfs_release_dev(struct ffs_dev *dev) +{ + module_put(THIS_MODULE); +} + /* * The caller of this function takes ffs_lock */ @@ -360,20 +402,12 @@ static int gfs_bind(struct usb_composite_dev *cdev) rndis_borrow_net(fi_rndis, net); #endif + /* TODO: gstrings_attach? */ ret = usb_string_ids_tab(cdev, gfs_strings); if (unlikely(ret < 0)) goto error_rndis; gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id; - for (i = func_num; i--; ) { - ret = functionfs_bind(ffs_tab[i]->ffs_data, cdev); - if (unlikely(ret < 0)) { - while (++i < func_num) - functionfs_unbind(ffs_tab[i]->ffs_data); - goto error_rndis; - } - } - for (i = 0; i < ARRAY_SIZE(gfs_configurations); ++i) { struct gfs_configuration *c = gfs_configurations + i; int sid = USB_GADGET_FIRST_AVAIL_IDX + i; @@ -383,6 +417,8 @@ static int gfs_bind(struct usb_composite_dev *cdev) c->c.bConfigurationValue = 1 + i; c->c.bmAttributes = USB_CONFIG_ATT_SELFPOWER; + c->num = i; + ret = usb_add_config(cdev, &c->c, gfs_do_config); if (unlikely(ret < 0)) goto error_unbind; @@ -390,9 +426,8 @@ static int gfs_bind(struct usb_composite_dev *cdev) usb_composite_overwrite_options(cdev, &coverwrite); return 0; +/* TODO */ error_unbind: - for (i = 0; i < func_num; i++) - functionfs_unbind(ffs_tab[i]->ffs_data); error_rndis: #ifdef CONFIG_USB_FUNCTIONFS_RNDIS usb_put_function_instance(fi_rndis); @@ -431,18 +466,8 @@ static int gfs_unbind(struct usb_composite_dev *cdev) usb_put_function_instance(fi_geth); } #endif - - /* - * We may have been called in an error recovery from - * composite_bind() after gfs_unbind() failure so we need to - * check if instance's ffs_data is not NULL since gfs_bind() handles - * all error recovery itself. I'd rather we werent called - * from composite on orror recovery, but what you're gonna - * do...? - */ - for (i = func_num; i--; ) - if (ffs_tab[i]->ffs_data) - functionfs_unbind(ffs_tab[i]->ffs_data); + for (i = 0; i < N_CONF * func_num; ++i) + usb_put_function(*(f_ffs[0] + i)); return 0; } @@ -473,9 +498,16 @@ static int gfs_do_config(struct usb_configuration *c) } for (i = 0; i < func_num; i++) { - ret = functionfs_bind_config(c->cdev, c, ffs_tab[i]->ffs_data); - if (unlikely(ret < 0)) - return ret; + f_ffs[gc->num][i] = usb_get_function(fi_ffs[i]); + if (IS_ERR(f_ffs[gc->num][i])) { + ret = PTR_ERR(f_ffs[gc->num][i]); + goto error; + } + ret = usb_add_function(c, f_ffs[gc->num][i]); + if (ret < 0) { + usb_put_function(f_ffs[gc->num][i]); + goto error; + } } /* @@ -492,6 +524,13 @@ static int gfs_do_config(struct usb_configuration *c) c->interface[c->next_interface_id] = NULL; return 0; +error: + while (--i >= 0) { + if (!IS_ERR(f_ffs[gc->num][i])) + usb_remove_function(c, f_ffs[gc->num][i]); + usb_put_function(f_ffs[gc->num][i]); + } + return ret; } #ifdef CONFIG_USB_FUNCTIONFS_ETH -- cgit v0.10.2 From 3d8d72a4c3c844c3c770c153bf570dc843143ac0 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:35 +0100 Subject: usb: gadget: FunctionFS: Remove compatibility layer There are no old function interface users left, so the old interface can be removed. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 8d318ea..9c8c74c 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -97,19 +97,12 @@ static struct ffs_function *ffs_func_from_usb(struct usb_function *f) return container_of(f, struct ffs_function, function); } -#ifdef USB_FFS_INCLUDED -static void ffs_func_free(struct ffs_function *func); -#endif static void ffs_func_eps_disable(struct ffs_function *func); static int __must_check ffs_func_eps_enable(struct ffs_function *func); static int ffs_func_bind(struct usb_configuration *, struct usb_function *); -#ifdef USB_FFS_INCLUDED -static void old_ffs_func_unbind(struct usb_configuration *, - struct usb_function *); -#endif static int ffs_func_set_alt(struct usb_function *, unsigned, unsigned); static void ffs_func_disable(struct usb_function *); static int ffs_func_setup(struct usb_function *, @@ -165,9 +158,7 @@ ffs_sb_create_file(struct super_block *sb, const char *name, void *data, /* Devices management *******************************************************/ DEFINE_MUTEX(ffs_lock); -#ifndef USB_FFS_INCLUDED EXPORT_SYMBOL(ffs_lock); -#endif static struct ffs_dev *ffs_find_dev(const char *name); static void *ffs_acquire_dev(const char *dev_name); @@ -1303,75 +1294,6 @@ static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count) kfree(epfiles); } -#ifdef USB_FFS_INCLUDED - -static int functionfs_bind_config(struct usb_composite_dev *cdev, - struct usb_configuration *c, - struct ffs_data *ffs) -{ - struct ffs_function *func; - int ret; - - ENTER(); - - func = kzalloc(sizeof *func, GFP_KERNEL); - if (unlikely(!func)) - return -ENOMEM; - - func->function.name = "Function FS Gadget"; - func->function.strings = ffs->stringtabs; - - func->function.bind = ffs_func_bind; - func->function.unbind = old_ffs_func_unbind; - func->function.set_alt = ffs_func_set_alt; - func->function.disable = ffs_func_disable; - func->function.setup = ffs_func_setup; - func->function.suspend = ffs_func_suspend; - func->function.resume = ffs_func_resume; - - func->conf = c; - func->gadget = cdev->gadget; - func->ffs = ffs; - ffs_data_get(ffs); - - ret = usb_add_function(c, &func->function); - if (unlikely(ret)) - ffs_func_free(func); - - return ret; -} - -static void ffs_func_free(struct ffs_function *func) -{ - struct ffs_ep *ep = func->eps; - unsigned count = func->ffs->eps_count; - unsigned long flags; - - ENTER(); - - /* cleanup after autoconfig */ - spin_lock_irqsave(&func->ffs->eps_lock, flags); - do { - if (ep->ep && ep->req) - usb_ep_free_request(ep->ep, ep->req); - ep->req = NULL; - ++ep; - } while (--count); - spin_unlock_irqrestore(&func->ffs->eps_lock, flags); - - ffs_data_put(func->ffs); - - kfree(func->eps); - /* - * eps and interfaces_nums are allocated in the same chunk so - * only one free is required. Descriptors are also allocated - * in the same chunk. - */ - - kfree(func); -} - -#endif static void ffs_func_eps_disable(struct ffs_function *func) { @@ -2035,7 +1957,6 @@ static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep, return 0; } -#ifndef USB_FFS_INCLUDED static inline struct f_fs_opts *ffs_do_functionfs_bind(struct usb_function *f, struct usb_configuration *c) { @@ -2084,7 +2005,6 @@ static inline struct f_fs_opts *ffs_do_functionfs_bind(struct usb_function *f, return ffs_opts; } -#endif static int _ffs_func_bind(struct usb_configuration *c, struct usb_function *f) @@ -2190,12 +2110,10 @@ error: static int ffs_func_bind(struct usb_configuration *c, struct usb_function *f) { -#ifndef USB_FFS_INCLUDED struct f_fs_opts *ffs_opts = ffs_do_functionfs_bind(f, c); if (IS_ERR(ffs_opts)) return PTR_ERR(ffs_opts); -#endif return _ffs_func_bind(c, f); } @@ -2203,28 +2121,6 @@ static int ffs_func_bind(struct usb_configuration *c, /* Other USB function hooks *************************************************/ -#ifdef USB_FFS_INCLUDED - -static void old_ffs_func_unbind(struct usb_configuration *c, - struct usb_function *f) -{ - struct ffs_function *func = ffs_func_from_usb(f); - struct ffs_data *ffs = func->ffs; - - ENTER(); - - if (ffs->func == func) { - ffs_func_eps_disable(func); - ffs->func = NULL; - } - - ffs_event_add(ffs, FUNCTIONFS_UNBIND); - - ffs_func_free(func); -} - -#endif - static int ffs_func_set_alt(struct usb_function *f, unsigned interface, unsigned alt) { @@ -2401,8 +2297,6 @@ static struct ffs_dev *ffs_find_dev(const char *name) /* Function registration interface ******************************************/ -#ifndef USB_FFS_INCLUDED - static void ffs_free_inst(struct usb_function_instance *f) { struct f_fs_opts *opts; @@ -2507,8 +2401,6 @@ static struct usb_function *ffs_alloc(struct usb_function_instance *fi) return &func->function; } -#endif - /* * ffs_lock must be taken by the caller of this function */ @@ -2567,9 +2459,7 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name) return ret; } -#ifndef USB_FFS_INCLUDED EXPORT_SYMBOL(ffs_name_dev); -#endif int ffs_single_dev(struct ffs_dev *dev) { @@ -2586,9 +2476,7 @@ int ffs_single_dev(struct ffs_dev *dev) ffs_dev_unlock(); return ret; } -#ifndef USB_FFS_INCLUDED EXPORT_SYMBOL(ffs_single_dev); -#endif /* * ffs_lock must be taken by the caller of this function @@ -2719,8 +2607,6 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len) return data; } -#ifndef USB_FFS_INCLUDED DECLARE_USB_FUNCTION_INIT(ffs, ffs_alloc_inst, ffs_alloc); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Michal Nazarewicz"); -#endif diff --git a/drivers/usb/gadget/u_fs.h b/drivers/usb/gadget/u_fs.h index d60a9dd..0931375 100644 --- a/drivers/usb/gadget/u_fs.h +++ b/drivers/usb/gadget/u_fs.h @@ -249,7 +249,6 @@ struct ffs_data { }; -#ifndef USB_FFS_INCLUDED struct f_fs_opts { struct usb_function_instance func_inst; struct ffs_dev *dev; @@ -261,6 +260,5 @@ static inline struct f_fs_opts *to_f_fs_opts(struct usb_function_instance *fi) { return container_of(fi, struct f_fs_opts, func_inst); } -#endif #endif /* U_FFS_H */ diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h index 3448efb..7119066 100644 --- a/include/linux/usb/functionfs.h +++ b/include/linux/usb/functionfs.h @@ -3,22 +3,4 @@ #include -#ifdef USB_FFS_INCLUDED - -struct ffs_data; -struct usb_composite_dev; -struct usb_configuration; - -static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev) - __attribute__((warn_unused_result, nonnull)); -static void functionfs_unbind(struct ffs_data *ffs) - __attribute__((nonnull)); - -static int functionfs_bind_config(struct usb_composite_dev *cdev, - struct usb_configuration *c, - struct ffs_data *ffs) - __attribute__((warn_unused_result, nonnull)); - - -#endif #endif -- cgit v0.10.2 From b658499f0f0f4ebf21d09c7da62a46f66ffa67cb Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 3 Dec 2013 15:15:36 +0100 Subject: usb: gadget: FunctionFS: add configfs support Add support for using FunctionFS in configfs-based USB gadgets. [ balbi@ti.com : removed redefinition of VERBOSE_DEBUG and few trailing whitespaces ] Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Acked-by: Michal Nazarewicz Signed-off-by: Felipe Balbi diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ffs b/Documentation/ABI/testing/configfs-usb-gadget-ffs new file mode 100644 index 0000000..14343e2 --- /dev/null +++ b/Documentation/ABI/testing/configfs-usb-gadget-ffs @@ -0,0 +1,9 @@ +What: /config/usb-gadget/gadget/functions/ffs.name +Date: Nov 2013 +KenelVersion: 3.13 +Description: The purpose of this directory is to create and remove it. + + A corresponding USB function instance is created/removed. + There are no attributes here. + + All parameters are set through FunctionFS. diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 97eb540..0ae2e65 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -701,6 +701,18 @@ config USB_CONFIGFS_F_LB_SS test software, like the "usbtest" driver, to put your hardware and its driver through a basic set of functional tests. +config USB_CONFIGFS_F_FS + boolean "Function filesystem (FunctionFS)" + depends on USB_CONFIGFS + select USB_F_FS + help + The Function Filesystem (FunctionFS) lets one create USB + composite functions in user space in the same way GadgetFS + lets one create USB gadgets in user space. This allows creation + of composite gadgets such that some of the functions are + implemented in kernel space (for instance Ethernet, serial or + mass storage) and other are implemented in user space. + config USB_ZERO tristate "Gadget Zero (DEVELOPMENT)" select USB_LIBCOMPOSITE diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 9c8c74c..12a64e1 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -29,6 +29,7 @@ #include #include "u_fs.h" +#include "configfs.h" #define FUNCTIONFS_MAGIC 0xa647361 /* Chosen by a honest dice roll ;) */ @@ -161,6 +162,7 @@ DEFINE_MUTEX(ffs_lock); EXPORT_SYMBOL(ffs_lock); static struct ffs_dev *ffs_find_dev(const char *name); +static int _ffs_name_dev(struct ffs_dev *dev, const char *name); static void *ffs_acquire_dev(const char *dev_name); static void ffs_release_dev(struct ffs_data *ffs_data); static int ffs_ready(struct ffs_data *ffs); @@ -2261,7 +2263,7 @@ static struct ffs_dev *_ffs_find_dev(const char *name) if (strcmp(dev->name, name) == 0) return dev; } - + return NULL; } @@ -2295,6 +2297,31 @@ static struct ffs_dev *ffs_find_dev(const char *name) return _ffs_find_dev(name); } +/* Configfs support *********************************************************/ + +static inline struct f_fs_opts *to_ffs_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct f_fs_opts, + func_inst.group); +} + +static void ffs_attr_release(struct config_item *item) +{ + struct f_fs_opts *opts = to_ffs_opts(item); + + usb_put_function_instance(&opts->func_inst); +} + +static struct configfs_item_operations ffs_item_ops = { + .release = ffs_attr_release, +}; + +static struct config_item_type ffs_func_type = { + .ct_item_ops = &ffs_item_ops, + .ct_owner = THIS_MODULE, +}; + + /* Function registration interface ******************************************/ static void ffs_free_inst(struct usb_function_instance *f) @@ -2308,6 +2335,44 @@ static void ffs_free_inst(struct usb_function_instance *f) kfree(opts); } +#define MAX_INST_NAME_LEN 40 + +static int ffs_set_inst_name(struct usb_function_instance *fi, const char *name) +{ + struct f_fs_opts *opts; + char *ptr; + const char *tmp; + int name_len, ret; + + name_len = strlen(name) + 1; + if (name_len > MAX_INST_NAME_LEN) + return -ENAMETOOLONG; + + ptr = kstrndup(name, name_len, GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + opts = to_f_fs_opts(fi); + tmp = NULL; + + ffs_dev_lock(); + + tmp = opts->dev->name_allocated ? opts->dev->name : NULL; + ret = _ffs_name_dev(opts->dev, ptr); + if (ret) { + kfree(ptr); + ffs_dev_unlock(); + return ret; + } + opts->dev->name_allocated = true; + + ffs_dev_unlock(); + + kfree(tmp); + + return 0; +} + static struct usb_function_instance *ffs_alloc_inst(void) { struct f_fs_opts *opts; @@ -2317,6 +2382,7 @@ static struct usb_function_instance *ffs_alloc_inst(void) if (!opts) return ERR_PTR(-ENOMEM); + opts->func_inst.set_inst_name = ffs_set_inst_name; opts->func_inst.free_func_inst = ffs_free_inst; ffs_dev_lock(); dev = ffs_alloc_dev(); @@ -2326,7 +2392,10 @@ static struct usb_function_instance *ffs_alloc_inst(void) return ERR_CAST(dev); } opts->dev = dev; + dev->opts = opts; + config_group_init_type_name(&opts->func_inst.group, "", + &ffs_func_type); return &opts->func_inst; } @@ -2484,6 +2553,8 @@ EXPORT_SYMBOL(ffs_single_dev); void ffs_free_dev(struct ffs_dev *dev) { list_del(&dev->entry); + if (dev->name_allocated) + kfree(dev->name); kfree(dev); if (list_empty(&ffs_devices)) functionfs_cleanup(); @@ -2572,6 +2643,13 @@ static void ffs_closed(struct ffs_data *ffs) if (ffs_obj->ffs_closed_callback) ffs_obj->ffs_closed_callback(ffs); + + if (!ffs_obj->opts || ffs_obj->opts->no_configfs + || !ffs_obj->opts->func_inst.group.cg_item.ci_parent) + goto done; + + unregister_gadget_item(ffs_obj->opts-> + func_inst.group.cg_item.ci_parent->ci_parent); done: ffs_dev_unlock(); } diff --git a/drivers/usb/gadget/u_fs.h b/drivers/usb/gadget/u_fs.h index 0931375..bc2d371 100644 --- a/drivers/usb/gadget/u_fs.h +++ b/drivers/usb/gadget/u_fs.h @@ -35,13 +35,16 @@ #define ENTER() pr_vdebug("%s()\n", __func__) +struct f_fs_opts; struct ffs_dev { const char *name; + bool name_allocated; bool mounted; bool desc_ready; bool single; struct ffs_data *ffs_data; + struct f_fs_opts *opts; struct list_head entry; int (*ffs_ready_callback)(struct ffs_data *ffs); -- cgit v0.10.2 From f8800d47bcdf5ae0582ac674657fd939a9105be0 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 12 Dec 2013 12:15:43 -0600 Subject: usb: gadget: f_fs: fix sparse warning use NULL when returning NULL pointers, not 0. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 12a64e1..306a2b5 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1137,7 +1137,7 @@ static struct ffs_data *ffs_data_new(void) { struct ffs_data *ffs = kzalloc(sizeof *ffs, GFP_KERNEL); if (unlikely(!ffs)) - return 0; + return NULL; ENTER(); -- cgit v0.10.2 From 4e6a1ee72b74ce013f0b31063915a58ba7db2f88 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 9 Dec 2013 12:42:48 +0100 Subject: xhci: Add quirks module option It makes easier for debugging some hardware specific issues. Note that this option won't override the value to be set. That is, you can turn quirks on by this option but cannot turn them off if set by the driver. Signed-off-by: Takashi Iwai Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index d68ec1a..6bc966c 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -40,6 +40,10 @@ static int link_quirk; module_param(link_quirk, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(link_quirk, "Don't clear the chain bit on a link TRB"); +static unsigned int quirks; +module_param(quirks, uint, S_IRUGO); +MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default"); + /* TODO: copied from ehci-hcd.c - can this be refactored? */ /* * xhci_handshake - spin reading hc until handshake completes or fails @@ -4770,6 +4774,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) xhci->hcc_params = readl(&xhci->cap_regs->hcc_params); xhci_print_registers(xhci); + xhci->quirks = quirks; + get_quirks(dev, xhci); /* In xhci controllers which follow xhci 1.0 spec gives a spurious -- cgit v0.10.2 From e117e742d310683b410951faeab4b13b6c3c609f Mon Sep 17 00:00:00 2001 From: Robert Baldyga Date: Fri, 13 Dec 2013 12:23:38 +0100 Subject: usb: gadget: add "maxpacket_limit" field to struct usb_ep This patch adds "maxpacket_limit" to struct usb_ep. This field contains maximum value of maxpacket supported by driver, and is set in driver probe. This value should be used by autoconfig() function, because value of field "maxpacket" is set to value from endpoint descriptor when endpoint becomes enabled. So when autoconfig() function will be called again for this endpoint, "maxpacket" value will contain wMaxPacketSize from descriptior instead of maximum packet size for this endpoint. For this reason this patch adds new field "maxpacket_limit" which contains value of maximum packet size (which defines maximum endpoint capabilities). This value is used in ep_matches() function used by autoconfig(). Value of "maxpacket_limit" should be set in UDC driver probe function, using usb_ep_set_maxpacket_limit() function, defined in gadget.h. This function set choosen value to both "maxpacket_limit" and "maxpacket" fields. This patch modifies UDC drivers by adding support for maxpacket_limit. Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index b34c819..77e4a17 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1566,7 +1566,7 @@ static int init_eps(struct ci_hdrc *ci) * eps, maxP is set by epautoconfig() called * by gadget layer */ - hwep->ep.maxpacket = (unsigned short)~0; + usb_ep_set_maxpacket_limit(&hwep->ep, (unsigned short)~0); INIT_LIST_HEAD(&hwep->qh.queue); hwep->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL, @@ -1586,7 +1586,7 @@ static int init_eps(struct ci_hdrc *ci) else ci->ep0in = hwep; - hwep->ep.maxpacket = CTRL_PAYLOAD_MAX; + usb_ep_set_maxpacket_limit(&hwep->ep, CTRL_PAYLOAD_MAX); continue; } diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index b85ec11..5401b2b 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1653,7 +1653,7 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc, dev_vdbg(dwc->dev, "initializing %s\n", dep->name); if (epnum == 0 || epnum == 1) { - dep->endpoint.maxpacket = 512; + usb_ep_set_maxpacket_limit(&dep->endpoint, 512); dep->endpoint.maxburst = 1; dep->endpoint.ops = &dwc3_gadget_ep0_ops; if (!epnum) @@ -1661,7 +1661,7 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc, } else { int ret; - dep->endpoint.maxpacket = 1024; + usb_ep_set_maxpacket_limit(&dep->endpoint, 1024); dep->endpoint.max_streams = 15; dep->endpoint.ops = &dwc3_gadget_ep_ops; list_add_tail(&dep->endpoint.ep_list, diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index f0ff4a6..a04aa8b 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -446,7 +446,7 @@ static void ep_init(struct udc_regs __iomem *regs, struct udc_ep *ep) ep->ep.ops = &udc_ep_ops; INIT_LIST_HEAD(&ep->queue); - ep->ep.maxpacket = (u16) ~0; + usb_ep_set_maxpacket_limit(&ep->ep,(u16) ~0); /* set NAK */ tmp = readl(&ep->regs->ctl); tmp |= AMD_BIT(UDC_EPCTL_SNAK); @@ -1564,12 +1564,15 @@ static void udc_setup_endpoints(struct udc *dev) } /* EP0 max packet */ if (dev->gadget.speed == USB_SPEED_FULL) { - dev->ep[UDC_EP0IN_IX].ep.maxpacket = UDC_FS_EP0IN_MAX_PKT_SIZE; - dev->ep[UDC_EP0OUT_IX].ep.maxpacket = - UDC_FS_EP0OUT_MAX_PKT_SIZE; + usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0IN_IX].ep, + UDC_FS_EP0IN_MAX_PKT_SIZE); + usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0OUT_IX].ep, + UDC_FS_EP0OUT_MAX_PKT_SIZE); } else if (dev->gadget.speed == USB_SPEED_HIGH) { - dev->ep[UDC_EP0IN_IX].ep.maxpacket = UDC_EP0IN_MAX_PKT_SIZE; - dev->ep[UDC_EP0OUT_IX].ep.maxpacket = UDC_EP0OUT_MAX_PKT_SIZE; + usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0IN_IX].ep, + UDC_EP0IN_MAX_PKT_SIZE); + usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0OUT_IX].ep, + UDC_EP0OUT_MAX_PKT_SIZE); } /* diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 4cc4fd6..0353b64 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -834,7 +834,7 @@ static void udc_reinit(struct at91_udc *udc) ep->ep.desc = NULL; ep->stopped = 0; ep->fifo_bank = 0; - ep->ep.maxpacket = ep->maxpacket; + usb_ep_set_maxpacket_limit(&ep->ep, ep->maxpacket); ep->creg = (void __iomem *) udc->udp_baseaddr + AT91_UDP_CSR(i); /* initialize one queue per endpoint */ INIT_LIST_HEAD(&ep->queue); @@ -1759,15 +1759,15 @@ static int at91udc_probe(struct platform_device *pdev) /* newer chips have more FIFO memory than rm9200 */ if (cpu_is_at91sam9260() || cpu_is_at91sam9g20()) { - udc->ep[0].maxpacket = 64; - udc->ep[3].maxpacket = 64; - udc->ep[4].maxpacket = 512; - udc->ep[5].maxpacket = 512; + usb_ep_set_maxpacket_limit(&udc->ep[0], 64); + usb_ep_set_maxpacket_limit(&udc->ep[3], 64); + usb_ep_set_maxpacket_limit(&udc->ep[4], 512); + usb_ep_set_maxpacket_limit(&udc->ep[5], 512); } else if (cpu_is_at91sam9261() || cpu_is_at91sam9g10()) { - udc->ep[3].maxpacket = 64; + usb_ep_set_maxpacket_limit(&udc->ep[3], 64); } else if (cpu_is_at91sam9263()) { - udc->ep[0].maxpacket = 64; - udc->ep[3].maxpacket = 64; + usb_ep_set_maxpacket_limit(&udc->ep[0], 64); + usb_ep_set_maxpacket_limit(&udc->ep[3], 64); } udc->udp_baseaddr = ioremap(res->start, resource_size(res)); diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index 2cb52e0..68cf3a4 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1904,7 +1904,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, ep->dma_regs = udc->regs + USBA_DMA_BASE(i); ep->fifo = udc->fifo + USBA_FIFO_BASE(i); ep->ep.ops = &usba_ep_ops; - ep->ep.maxpacket = ep->fifo_size; + usb_ep_set_maxpacket_limit(&ep->ep, ep->fifo_size); ep->udc = udc; INIT_LIST_HEAD(&ep->queue); @@ -1957,7 +1957,8 @@ static struct usba_ep * usba_udc_pdata(struct platform_device *pdev, ep->fifo = udc->fifo + USBA_FIFO_BASE(i); ep->ep.ops = &usba_ep_ops; ep->ep.name = pdata->ep[i].name; - ep->fifo_size = ep->ep.maxpacket = pdata->ep[i].fifo_size; + ep->fifo_size = pdata->ep[i].fifo_size; + usb_ep_set_maxpacket_limit(&ep->ep, ep->fifo_size); ep->udc = udc; INIT_LIST_HEAD(&ep->queue); ep->nr_banks = pdata->ep[i].nr_banks; diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c index c58fcf1..2ac7a8f 100644 --- a/drivers/usb/gadget/bcm63xx_udc.c +++ b/drivers/usb/gadget/bcm63xx_udc.c @@ -549,7 +549,7 @@ static void bcm63xx_ep_setup(struct bcm63xx_udc *udc) if (idx < 0) continue; - udc->bep[idx].ep.maxpacket = max_pkt; + usb_ep_set_maxpacket_limit(&udc->bep[idx].ep, max_pkt); val = (idx << USBD_CSR_EP_LOG_SHIFT) | (cfg->dir << USBD_CSR_EP_DIR_SHIFT) | @@ -943,7 +943,7 @@ static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc) bep->ep.ops = &bcm63xx_udc_ep_ops; list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list); bep->halted = 0; - bep->ep.maxpacket = BCM63XX_MAX_CTRL_PKT; + usb_ep_set_maxpacket_limit(&bep->ep, BCM63XX_MAX_CTRL_PKT); bep->udc = udc; bep->ep.desc = NULL; INIT_LIST_HEAD(&bep->queue); diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 8f4dae3..8c06430 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -951,7 +951,7 @@ static void init_dummy_udc_hw(struct dummy *dum) list_add_tail(&ep->ep.ep_list, &dum->gadget.ep_list); ep->halted = ep->wedged = ep->already_seen = ep->setup_stage = 0; - ep->ep.maxpacket = ~0; + usb_ep_set_maxpacket_limit(&ep->ep, ~0); ep->ep.max_streams = 16; ep->last_io = jiffies; ep->gadget = &dum->gadget; diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index feaaa7b..358de32 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -129,7 +129,7 @@ ep_matches ( * and wants to know the maximum possible, provide the info. */ if (desc->wMaxPacketSize == 0) - desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket); + desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit); /* endpoint maxpacket size is an input parameter, except for bulk * where it's an output parameter representing the full speed limit. @@ -145,7 +145,7 @@ ep_matches ( case USB_ENDPOINT_XFER_ISOC: /* ISO: limit 1023 bytes full speed, 1024 high/super speed */ - if (ep->maxpacket < max) + if (ep->maxpacket_limit < max) return 0; if (!gadget_is_dualspeed(gadget) && max > 1023) return 0; @@ -178,7 +178,7 @@ ep_matches ( /* report (variable) full speed bulk maxpacket */ if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) { - int size = ep->maxpacket; + int size = ep->maxpacket_limit; /* min() doesn't work on bitfields with gcc-3.5 */ if (size > 64) diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c index bbbfd19..2d03052 100644 --- a/drivers/usb/gadget/fotg210-udc.c +++ b/drivers/usb/gadget/fotg210-udc.c @@ -1157,8 +1157,9 @@ static int fotg210_udc_probe(struct platform_device *pdev) INIT_LIST_HEAD(&ep->queue); ep->ep.name = fotg210_ep_name[i]; ep->ep.ops = &fotg210_ep_ops; + usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0); } - fotg210->ep[0]->ep.maxpacket = 0x40; + usb_ep_set_maxpacket_limit(&fotg210->ep[0]->ep, 0x40); fotg210->gadget.ep0 = &fotg210->ep[0]->ep; INIT_LIST_HEAD(&fotg210->gadget.ep0->ep_list); diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 6315ee6..f60d4da 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2429,7 +2429,7 @@ static int qe_ep_config(struct qe_udc *udc, unsigned char pipe_num) ep->ep.ops = &qe_ep_ops; ep->stopped = 1; - ep->ep.maxpacket = (unsigned short) ~0; + usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0); ep->ep.desc = NULL; ep->dir = 0xff; ep->epnum = (u8)pipe_num; diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index b7dea4e..15960af 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2311,7 +2311,7 @@ static int __init struct_ep_setup(struct fsl_udc *udc, unsigned char index, /* for ep0: maxP defined in desc * for other eps, maxP is set by epautoconfig() called by gadget layer */ - ep->ep.maxpacket = (unsigned short) ~0; + usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0); /* the queue lists any req for this ep */ INIT_LIST_HEAD(&ep->queue); @@ -2469,7 +2469,8 @@ static int __init fsl_udc_probe(struct platform_device *pdev) * for other eps, gadget layer called ep_enable with defined desc */ udc_controller->eps[0].ep.desc = &fsl_ep0_desc; - udc_controller->eps[0].ep.maxpacket = USB_MAX_CTRL_PAYLOAD; + usb_ep_set_maxpacket_limit(&udc_controller->eps[0].ep, + USB_MAX_CTRL_PAYLOAD); /* setup the udc->eps[] for non-control endpoints and link * to gadget.ep_list */ diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index b278abe..6423f18 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -1452,9 +1452,9 @@ static int __init fusb300_probe(struct platform_device *pdev) INIT_LIST_HEAD(&ep->queue); ep->ep.name = fusb300_ep_name[i]; ep->ep.ops = &fusb300_ep_ops; - ep->ep.maxpacket = HS_BULK_MAX_PACKET_SIZE; + usb_ep_set_maxpacket_limit(&ep->ep, HS_BULK_MAX_PACKET_SIZE); } - fusb300->ep[0]->ep.maxpacket = HS_CTL_MAX_PACKET_SIZE; + usb_ep_set_maxpacket_limit(&fusb300->ep[0]->ep, HS_CTL_MAX_PACKET_SIZE); fusb300->ep[0]->epnum = 0; fusb300->gadget.ep0 = &fusb300->ep[0]->ep; INIT_LIST_HEAD(&fusb300->gadget.ep0->ep_list); diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 7eda9fd..f66f3a7 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -231,7 +231,7 @@ static void ep_reset(struct goku_udc_regs __iomem *regs, struct goku_ep *ep) } } - ep->ep.maxpacket = MAX_FIFO_SIZE; + usb_ep_set_maxpacket_limit(&ep->ep, MAX_FIFO_SIZE); ep->ep.desc = NULL; ep->stopped = 1; ep->irqs = 0; @@ -1251,7 +1251,7 @@ static void udc_reinit (struct goku_udc *dev) } dev->ep[0].reg_mode = NULL; - dev->ep[0].ep.maxpacket = MAX_EP0_SIZE; + usb_ep_set_maxpacket_limit(&dev->ep[0].ep, MAX_EP0_SIZE); list_del_init (&dev->ep[0].ep.ep_list); } diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c index 6a2a65a..049ebab 100644 --- a/drivers/usb/gadget/lpc32xx_udc.c +++ b/drivers/usb/gadget/lpc32xx_udc.c @@ -1449,7 +1449,7 @@ static void udc_reinit(struct lpc32xx_udc *udc) if (i != 0) list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); - ep->ep.maxpacket = ep->maxpacket; + usb_ep_set_maxpacket_limit(&ep->ep, ep->maxpacket); INIT_LIST_HEAD(&ep->queue); ep->req_pending = 0; } diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index d5f050d..8cae01d 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1647,9 +1647,9 @@ static int __init m66592_probe(struct platform_device *pdev) INIT_LIST_HEAD(&ep->queue); ep->ep.name = m66592_ep_name[i]; ep->ep.ops = &m66592_ep_ops; - ep->ep.maxpacket = 512; + usb_ep_set_maxpacket_limit(&ep->ep, 512); } - m66592->ep[0].ep.maxpacket = 64; + usb_ep_set_maxpacket_limit(&m66592->ep[0].ep, 64); m66592->ep[0].pipenum = 0; m66592->ep[0].fifoaddr = M66592_CFIFO; m66592->ep[0].fifosel = M66592_CFIFOSEL; diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index 234711e..9fe31d7 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -1336,7 +1336,7 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d) ep->ep.name = ep->name; ep->ep.ops = &mv_u3d_ep_ops; ep->wedge = 0; - ep->ep.maxpacket = MV_U3D_EP0_MAX_PKT_SIZE; + usb_ep_set_maxpacket_limit(&ep->ep, MV_U3D_EP0_MAX_PKT_SIZE); ep->ep_num = 0; ep->ep.desc = &mv_u3d_ep0_desc; INIT_LIST_HEAD(&ep->queue); @@ -1361,7 +1361,7 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d) ep->ep.name = ep->name; ep->ep.ops = &mv_u3d_ep_ops; - ep->ep.maxpacket = (unsigned short) ~0; + usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0); ep->ep_num = i / 2; INIT_LIST_HEAD(&ep->queue); diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index 104cdbe..d43ce95 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -1261,7 +1261,7 @@ static int eps_init(struct mv_udc *udc) ep->ep.ops = &mv_ep_ops; ep->wedge = 0; ep->stopped = 0; - ep->ep.maxpacket = EP0_MAX_PKT_SIZE; + usb_ep_set_maxpacket_limit(&ep->ep, EP0_MAX_PKT_SIZE); ep->ep_num = 0; ep->ep.desc = &mv_ep0_desc; INIT_LIST_HEAD(&ep->queue); @@ -1284,7 +1284,7 @@ static int eps_init(struct mv_udc *udc) ep->ep.ops = &mv_ep_ops; ep->stopped = 0; - ep->ep.maxpacket = (unsigned short) ~0; + usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0); ep->ep_num = i / 2; INIT_LIST_HEAD(&ep->queue); diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c index bf2bb39..ca15405 100644 --- a/drivers/usb/gadget/net2272.c +++ b/drivers/usb/gadget/net2272.c @@ -266,7 +266,7 @@ static void net2272_ep_reset(struct net2272_ep *ep) ep->desc = NULL; INIT_LIST_HEAD(&ep->queue); - ep->ep.maxpacket = ~0; + usb_ep_set_maxpacket_limit(&ep->ep, ~0); ep->ep.ops = &net2272_ep_ops; /* disable irqs, endpoint */ @@ -1409,7 +1409,7 @@ net2272_usb_reinit(struct net2272 *dev) ep->fifo_size = 64; net2272_ep_reset(ep); } - dev->ep[0].ep.maxpacket = 64; + usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64); dev->gadget.ep0 = &dev->ep[0].ep; dev->ep[0].stopped = 0; diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index fc85217..43e5e2f 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -293,7 +293,7 @@ static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep) ep->desc = NULL; INIT_LIST_HEAD (&ep->queue); - ep->ep.maxpacket = ~0; + usb_ep_set_maxpacket_limit(&ep->ep, ~0); ep->ep.ops = &net2280_ep_ops; /* disable the dma, irqs, endpoint... */ @@ -1805,9 +1805,9 @@ static void usb_reinit (struct net2280 *dev) ep->regs = &dev->epregs [tmp]; ep_reset (dev->regs, ep); } - dev->ep [0].ep.maxpacket = 64; - dev->ep [5].ep.maxpacket = 64; - dev->ep [6].ep.maxpacket = 64; + usb_ep_set_maxpacket_limit(&dev->ep [0].ep, 64); + usb_ep_set_maxpacket_limit(&dev->ep [5].ep, 64); + usb_ep_set_maxpacket_limit(&dev->ep [6].ep, 64); dev->gadget.ep0 = &dev->ep [0].ep; dev->ep [0].stopped = 0; diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 83957cc..34bd713 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -2586,7 +2586,8 @@ omap_ep_setup(char *name, u8 addr, u8 type, ep->ep.name = ep->name; ep->ep.ops = &omap_ep_ops; - ep->ep.maxpacket = ep->maxpacket = maxp; + ep->maxpacket = maxp; + usb_ep_set_maxpacket_limit(&ep->ep, ep->maxpacket); list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); return buf; diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 78a3d92..eb8c3be 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -2896,12 +2896,12 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev) ep->offset_addr = (UDC_EPINT_OUT_SHIFT + ep->num) * UDC_EP_REG_SHIFT; /* need to set ep->ep.maxpacket and set Default Configuration?*/ - ep->ep.maxpacket = UDC_BULK_MAX_PKT_SIZE; + usb_ep_set_maxpacket_limit(&ep->ep, UDC_BULK_MAX_PKT_SIZE); list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list); INIT_LIST_HEAD(&ep->queue); } - dev->ep[UDC_EP0IN_IDX].ep.maxpacket = UDC_EP0IN_MAX_PKT_SIZE; - dev->ep[UDC_EP0OUT_IDX].ep.maxpacket = UDC_EP0OUT_MAX_PKT_SIZE; + usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0IN_IDX].ep, UDC_EP0IN_MAX_PKT_SIZE); + usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0OUT_IDX].ep, UDC_EP0OUT_MAX_PKT_SIZE); /* remove ep0 in and out from the list. They have own pointer */ list_del_init(&dev->ep[UDC_EP0IN_IDX].ep.ep_list); diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 0ac6064..5b4f437 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -1193,6 +1193,7 @@ static void udc_reinit(struct pxa25x_udc *dev) ep->stopped = 0; INIT_LIST_HEAD (&ep->queue); ep->pio_irqs = 0; + usb_ep_set_maxpacket_limit(&ep->ep, ep->ep.maxpacket); } /* the rest was statically initialized, and is read-only */ diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 3c97da7..cdf4d67 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -1737,9 +1737,12 @@ static void udc_init_data(struct pxa_udc *dev) } /* USB endpoints init */ - for (i = 1; i < NR_USB_ENDPOINTS; i++) + for (i = 1; i < NR_USB_ENDPOINTS; i++) { list_add_tail(&dev->udc_usb_ep[i].usb_ep.ep_list, &dev->gadget.ep_list); + usb_ep_set_maxpacket_limit(&dev->udc_usb_ep[i].usb_ep, + dev->udc_usb_ep[i].usb_ep.maxpacket); + } } /** diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index 4728751..aff0a67 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1964,9 +1964,9 @@ static int __init r8a66597_probe(struct platform_device *pdev) INIT_LIST_HEAD(&ep->queue); ep->ep.name = r8a66597_ep_name[i]; ep->ep.ops = &r8a66597_ep_ops; - ep->ep.maxpacket = 512; + usb_ep_set_maxpacket_limit(&ep->ep, 512); } - r8a66597->ep[0].ep.maxpacket = 64; + usb_ep_set_maxpacket_limit(&r8a66597->ep[0].ep, 64); r8a66597->ep[0].pipenum = 0; r8a66597->ep[0].fifoaddr = CFIFO; r8a66597->ep[0].fifosel = CFIFOSEL; diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 6c80bfc..50df18d 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -3150,7 +3150,7 @@ static void s3c_hsotg_initep(struct s3c_hsotg *hsotg, hs_ep->parent = hsotg; hs_ep->ep.name = hs_ep->name; - hs_ep->ep.maxpacket = epnum ? 1024 : EP0_MPS_LIMIT; + usb_ep_set_maxpacket_limit(&hs_ep->ep, epnum ? 1024 : EP0_MPS_LIMIT); hs_ep->ep.ops = &s3c_hsotg_ep_ops; /* diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index 1a1a414..ea4bbfe 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -999,7 +999,7 @@ static void s3c_hsudc_initep(struct s3c_hsudc *hsudc, hsep->dev = hsudc; hsep->ep.name = hsep->name; - hsep->ep.maxpacket = epnum ? 512 : 64; + usb_ep_set_maxpacket_limit(&hsep->ep, epnum ? 512 : 64); hsep->ep.ops = &s3c_hsudc_ep_ops; hsep->fifo = hsudc->regs + S3C_BR(epnum); hsep->ep.desc = NULL; diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index c72d810..f04b2c3 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1629,6 +1629,7 @@ static void s3c2410_udc_reinit(struct s3c2410_udc *dev) ep->ep.desc = NULL; ep->halted = 0; INIT_LIST_HEAD(&ep->queue); + usb_ep_set_maxpacket_limit(&ep->ep, &ep->ep.maxpacket); } } diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index d2d3a17..76f0076 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1727,14 +1727,14 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in) ep->end_point.name = ep->name; INIT_LIST_HEAD(&ep->end_point.ep_list); if (!epnum) { - ep->end_point.maxpacket = 64; + usb_ep_set_maxpacket_limit(&ep->end_point, 64); ep->end_point.ops = &musb_g_ep0_ops; musb->g.ep0 = &ep->end_point; } else { if (is_in) - ep->end_point.maxpacket = hw_ep->max_packet_sz_tx; + usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_tx); else - ep->end_point.maxpacket = hw_ep->max_packet_sz_rx; + usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_rx); ep->end_point.ops = &musb_ep_ops; list_add_tail(&ep->end_point.ep_list, &musb->g.ep_list); } diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 3385aeb..458f376 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -987,11 +987,11 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) /* init DCP */ if (usbhsg_is_dcp(uep)) { gpriv->gadget.ep0 = &uep->ep; - uep->ep.maxpacket = 64; + usb_ep_set_maxpacket_limit(&uep->ep, 64); } /* init normal pipe */ else { - uep->ep.maxpacket = 512; + usb_ep_set_maxpacket_limit(&uep->ep, 512); list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list); } } diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index cae8a62..c3a6185 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -148,6 +148,9 @@ struct usb_ep_ops { * @maxpacket:The maximum packet size used on this endpoint. The initial * value can sometimes be reduced (hardware allowing), according to * the endpoint descriptor used to configure the endpoint. + * @maxpacket_limit:The maximum packet size value which can be handled by this + * endpoint. It's set once by UDC driver when endpoint is initialized, and + * should not be changed. Should not be confused with maxpacket. * @max_streams: The maximum number of streams supported * by this EP (0 - 16, actual number is 2^n) * @mult: multiplier, 'mult' value for SS Isoc EPs @@ -171,6 +174,7 @@ struct usb_ep { const struct usb_ep_ops *ops; struct list_head ep_list; unsigned maxpacket:16; + unsigned maxpacket_limit:16; unsigned max_streams:16; unsigned mult:2; unsigned maxburst:5; @@ -182,6 +186,21 @@ struct usb_ep { /*-------------------------------------------------------------------------*/ /** + * usb_ep_set_maxpacket_limit - set maximum packet size limit for endpoint + * @ep:the endpoint being configured + * @maxpacket_limit:value of maximum packet size limit + * + * This function shoud be used only in UDC drivers to initialize endpoint + * (usually in probe function). + */ +static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep, + unsigned maxpacket_limit) +{ + ep->maxpacket_limit = maxpacket_limit; + ep->maxpacket = maxpacket_limit; +} + +/** * usb_ep_enable - configure endpoint, making it usable * @ep:the endpoint being configured. may not be the endpoint named "ep0". * drivers discover endpoints through the ep_list of a usb_gadget. -- cgit v0.10.2 From 45ab460975c5433d1bd81b211fe643732abaae19 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Fri, 13 Dec 2013 14:46:40 +0100 Subject: usb: gadget: nokia: fix error recovery path for optional functions In the nokia gadget some USB functions (obex 1 and 2, phonet) are optional. If at the start of nokia_bind_config e.g. fi_phonet is an error pointer, which can happen because we don't fail the bind process if usb_get_function_instance() fails for fi_phonet, then f_phonet is NULL, and phonet_stat = usb_add_function(c, f_phonet); is never called and phonet_stat remains 0. If, in these circumstances, we hit the err_conf label then !phonet_stat evaluates to true and we try usb_remove_function() with its second parameter being f_phonet which is NULL and it causes NULL pointer dereference. This patch changes the initial values of (obex1|obex2|phonet)_stat to a nonzero value so that if the err_conf label is hit while the respective functions have not been acquired the usb_remove_function() is not called for those functions. Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c index 0a8099a..3ab3861 100644 --- a/drivers/usb/gadget/nokia.c +++ b/drivers/usb/gadget/nokia.c @@ -126,9 +126,9 @@ static int __init nokia_bind_config(struct usb_configuration *c) struct usb_function *f_ecm; struct usb_function *f_obex2 = NULL; int status = 0; - int obex1_stat = 0; - int obex2_stat = 0; - int phonet_stat = 0; + int obex1_stat = -1; + int obex2_stat = -1; + int phonet_stat = -1; if (!IS_ERR(fi_phonet)) { f_phonet = usb_get_function(fi_phonet); -- cgit v0.10.2 From 40a8fb2a671319c589baa9995e7b6f3b8c72c30c Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 15:13:31 +0900 Subject: usb: gadget: atmel_usba: Use devm_*() functions Use devm_*() functions to make cleanup paths simpler. Acked-by: Nicolas Ferre Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index 68cf3a4..bb1eb42 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1996,14 +1996,12 @@ static int __init usba_udc_probe(struct platform_device *pdev) if (irq < 0) return irq; - pclk = clk_get(&pdev->dev, "pclk"); + pclk = devm_clk_get(&pdev->dev, "pclk"); if (IS_ERR(pclk)) return PTR_ERR(pclk); - hclk = clk_get(&pdev->dev, "hclk"); - if (IS_ERR(hclk)) { - ret = PTR_ERR(hclk); - goto err_get_hclk; - } + hclk = devm_clk_get(&pdev->dev, "hclk"); + if (IS_ERR(hclk)) + return PTR_ERR(hclk); spin_lock_init(&udc->lock); udc->pdev = pdev; @@ -2012,17 +2010,17 @@ static int __init usba_udc_probe(struct platform_device *pdev) udc->vbus_pin = -ENODEV; ret = -ENOMEM; - udc->regs = ioremap(regs->start, resource_size(regs)); + udc->regs = devm_ioremap(&pdev->dev, regs->start, resource_size(regs)); if (!udc->regs) { dev_err(&pdev->dev, "Unable to map I/O memory, aborting.\n"); - goto err_map_regs; + return ret; } dev_info(&pdev->dev, "MMIO registers at 0x%08lx mapped at %p\n", (unsigned long)regs->start, udc->regs); - udc->fifo = ioremap(fifo->start, resource_size(fifo)); + udc->fifo = devm_ioremap(&pdev->dev, fifo->start, resource_size(fifo)); if (!udc->fifo) { dev_err(&pdev->dev, "Unable to map FIFO, aborting.\n"); - goto err_map_fifo; + return ret; } dev_info(&pdev->dev, "FIFO at 0x%08lx mapped at %p\n", (unsigned long)fifo->start, udc->fifo); @@ -2033,7 +2031,7 @@ static int __init usba_udc_probe(struct platform_device *pdev) ret = clk_prepare_enable(pclk); if (ret) { dev_err(&pdev->dev, "Unable to enable pclk, aborting.\n"); - goto err_clk_enable; + return ret; } toggle_bias(0); usba_writel(udc, CTRL, USBA_DISABLE_MASK); @@ -2044,22 +2042,22 @@ static int __init usba_udc_probe(struct platform_device *pdev) else udc->usba_ep = usba_udc_pdata(pdev, udc); - if (IS_ERR(udc->usba_ep)) { - ret = PTR_ERR(udc->usba_ep); - goto err_alloc_ep; - } + if (IS_ERR(udc->usba_ep)) + return PTR_ERR(udc->usba_ep); - ret = request_irq(irq, usba_udc_irq, 0, "atmel_usba_udc", udc); + ret = devm_request_irq(&pdev->dev, irq, usba_udc_irq, 0, + "atmel_usba_udc", udc); if (ret) { dev_err(&pdev->dev, "Cannot request irq %d (error %d)\n", irq, ret); - goto err_request_irq; + return ret; } udc->irq = irq; if (gpio_is_valid(udc->vbus_pin)) { if (!devm_gpio_request(&pdev->dev, udc->vbus_pin, "atmel_usba_udc")) { - ret = request_irq(gpio_to_irq(udc->vbus_pin), + ret = devm_request_irq(&pdev->dev, + gpio_to_irq(udc->vbus_pin), usba_vbus_irq, 0, "atmel_usba_udc", udc); if (ret) { @@ -2078,31 +2076,13 @@ static int __init usba_udc_probe(struct platform_device *pdev) ret = usb_add_gadget_udc(&pdev->dev, &udc->gadget); if (ret) - goto err_add_udc; + return ret; usba_init_debugfs(udc); for (i = 1; i < udc->num_ep; i++) usba_ep_init_debugfs(udc, &udc->usba_ep[i]); return 0; - -err_add_udc: - if (gpio_is_valid(udc->vbus_pin)) - free_irq(gpio_to_irq(udc->vbus_pin), udc); - - free_irq(irq, udc); -err_request_irq: -err_alloc_ep: -err_clk_enable: - iounmap(udc->fifo); -err_map_fifo: - iounmap(udc->regs); -err_map_regs: - clk_put(hclk); -err_get_hclk: - clk_put(pclk); - - return ret; } static int __exit usba_udc_remove(struct platform_device *pdev) @@ -2118,16 +2098,6 @@ static int __exit usba_udc_remove(struct platform_device *pdev) usba_ep_cleanup_debugfs(&udc->usba_ep[i]); usba_cleanup_debugfs(udc); - if (gpio_is_valid(udc->vbus_pin)) { - free_irq(gpio_to_irq(udc->vbus_pin), udc); - } - - free_irq(udc->irq, udc); - iounmap(udc->fifo); - iounmap(udc->regs); - clk_put(udc->hclk); - clk_put(udc->pclk); - return 0; } -- cgit v0.10.2 From 5056ee83e8e9b3b3eec895f8bb0804a802fb61d2 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 15:14:23 +0900 Subject: usb: gadget: atmel_usba: Fix sparse warning 'usba_gadget_template' is used only in this file. Thus, make 'usba_gadget_template' static, in order to fix the following sparse warning. warning: symbol 'usba_gadget_template' was not declared. Should it be static? Acked-by: Nicolas Ferre Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index bb1eb42..38bf67b 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1012,7 +1012,7 @@ static void nop_release(struct device *dev) } -struct usb_gadget usba_gadget_template = { +static struct usb_gadget usba_gadget_template = { .ops = &usba_udc_ops, .max_speed = USB_SPEED_HIGH, .name = "atmel_usba_udc", -- cgit v0.10.2 From 086ed9a0bcca0201301b74a0c5160c04f2f38f8b Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 13 Dec 2013 10:47:28 +0000 Subject: usb: musb: ux500_dma: fix potential NULL dereference error static checker warning: "drivers/usb/musb/ux500_dma.c:335 ux500_dma_controller_start() error: potential NULL dereference 'param_array'." Acked-by: Linus Walleij Reported-by: Dan Carpenter Signed-off-by: Lee Jones Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c index 3700e97..9aad00f 100644 --- a/drivers/usb/musb/ux500_dma.c +++ b/drivers/usb/musb/ux500_dma.c @@ -336,7 +336,9 @@ static int ux500_dma_controller_start(struct ux500_dma_controller *controller) data ? data->dma_filter : NULL, - param_array[ch_num]); + param_array ? + param_array[ch_num] : + NULL); if (!ux500_channel->dma_chan) { ERR("Dma pipe allocation error dir=%d ch=%d\n", -- cgit v0.10.2 From 8002418dfff422f9b96de2a52112ed4d552d36bb Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:40:49 +0900 Subject: usb: gadget: f_loopback: Fix sparse warning Make local symbols static in order to fix the following sparse warnings. drivers/usb/gadget/f_loopback.c:123:34: warning: symbol 'ss_loop_source_comp_desc' was not declared. Should it be static? drivers/usb/gadget/f_loopback.c:139:34: warning: symbol 'ss_loop_sink_comp_desc' was not declared. Should it be static? Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index c35bb40..4557cd0 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -120,7 +120,7 @@ static struct usb_endpoint_descriptor ss_loop_source_desc = { .wMaxPacketSize = cpu_to_le16(1024), }; -struct usb_ss_ep_comp_descriptor ss_loop_source_comp_desc = { +static struct usb_ss_ep_comp_descriptor ss_loop_source_comp_desc = { .bLength = USB_DT_SS_EP_COMP_SIZE, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, .bMaxBurst = 0, @@ -136,7 +136,7 @@ static struct usb_endpoint_descriptor ss_loop_sink_desc = { .wMaxPacketSize = cpu_to_le16(1024), }; -struct usb_ss_ep_comp_descriptor ss_loop_sink_comp_desc = { +static struct usb_ss_ep_comp_descriptor ss_loop_sink_comp_desc = { .bLength = USB_DT_SS_EP_COMP_SIZE, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, .bMaxBurst = 0, -- cgit v0.10.2 From 6195174ef4704d6e57a246189d65caed704d8613 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:42:48 +0900 Subject: usb: gadget: f_mass_storage: Fix sparse warning Use NULL instead of 0 when returning pointer, to fix the following sparse warnings. drivers/usb/gadget/f_mass_storage.c:3114:60: warning: Using plain integer as NULL pointer drivers/usb/gadget/f_mass_storage.c:3114:63: warning: Using plain integer as NULL pointer Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index a03ba2c..1dfecdf 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -3111,7 +3111,7 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) fsg->common->can_stall); if (ret) return ret; - fsg_common_set_inquiry_string(fsg->common, 0, 0); + fsg_common_set_inquiry_string(fsg->common, NULL, NULL); ret = fsg_common_run_thread(fsg->common); if (ret) return ret; -- cgit v0.10.2 From 36a61125484a3a1cc6dc66f3e4e13b25e447cf3e Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:43:32 +0900 Subject: usb: gadget: f_ncm: Fix sparse warning Make local symbol static in order to fix the following sparse warning. drivers/usb/gadget/f_ncm.c:1389:21: warning: symbol 'ncm_alloc' was not declared. Should it be static? Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index 1c28fe1..a9499fd 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -1386,7 +1386,7 @@ static void ncm_unbind(struct usb_configuration *c, struct usb_function *f) usb_ep_free_request(ncm->notify, ncm->notify_req); } -struct usb_function *ncm_alloc(struct usb_function_instance *fi) +static struct usb_function *ncm_alloc(struct usb_function_instance *fi) { struct f_ncm *ncm; struct f_ncm_opts *opts; -- cgit v0.10.2 From 9272fe5a99962915241701f75c0efceae9e736b5 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:43:50 +0900 Subject: usb: gadget: f_obex: Fix sparse warning Make local symbol static in order to fix the following sparse warning. drivers/usb/gadget/f_obex.c:502:21: warning: symbol 'obex_alloc' was not declared. Should it be static? Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c index ad39f1d..aebae18 100644 --- a/drivers/usb/gadget/f_obex.c +++ b/drivers/usb/gadget/f_obex.c @@ -499,7 +499,7 @@ static void obex_unbind(struct usb_configuration *c, struct usb_function *f) usb_free_all_descriptors(f); } -struct usb_function *obex_alloc(struct usb_function_instance *fi) +static struct usb_function *obex_alloc(struct usb_function_instance *fi) { struct f_obex *obex; struct f_serial_opts *opts; -- cgit v0.10.2 From c3af8223d58787fb4279c8140f72873259964476 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:44:07 +0900 Subject: usb: gadget: f_phonet: Fix sparse warning Make local symbol static in order to fix the following sparse warning. drivers/usb/gadget/f_phonet.c:692:21: warning: symbol 'phonet_alloc' was not declared. Should it be static? Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c index eb3aa81..f2b7817 100644 --- a/drivers/usb/gadget/f_phonet.c +++ b/drivers/usb/gadget/f_phonet.c @@ -689,7 +689,7 @@ static void pn_unbind(struct usb_configuration *c, struct usb_function *f) usb_free_all_descriptors(f); } -struct usb_function *phonet_alloc(struct usb_function_instance *fi) +static struct usb_function *phonet_alloc(struct usb_function_instance *fi) { struct f_phonet *fp; struct f_phonet_opts *opts; -- cgit v0.10.2 From b3d589f27962951ba0f5d028154cb60d6fdadff3 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:44:25 +0900 Subject: usb: gadget: f_serial: Fix sparse warning Make local symbol static in order to fix the following sparse warning. drivers/usb/gadget/f_serial.c:357:21: warning: symbol 'gser_alloc' was not declared. Should it be static? Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_serial.c b/drivers/usb/gadget/f_serial.c index 981113c..9ecbcbf 100644 --- a/drivers/usb/gadget/f_serial.c +++ b/drivers/usb/gadget/f_serial.c @@ -354,7 +354,7 @@ static void gser_unbind(struct usb_configuration *c, struct usb_function *f) usb_free_all_descriptors(f); } -struct usb_function *gser_alloc(struct usb_function_instance *fi) +static struct usb_function *gser_alloc(struct usb_function_instance *fi) { struct f_gser *gser; struct f_serial_opts *opts; -- cgit v0.10.2 From 4a5ee77caad2a99b86d6bdd5f0064a60224a0760 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 16 Dec 2013 18:44:43 +0900 Subject: usb: gadget: f_sourcesink: Fix sparse warning Make local symbols static in order to fix the following sparse warnings. drivers/usb/gadget/f_sourcesink.c:205:34: warning: symbol 'ss_source_comp_desc' was not declared. Should it be static? drivers/usb/gadget/f_sourcesink.c:222:34: warning: symbol 'ss_sink_comp_desc' was not declared. Should it be static? drivers/usb/gadget/f_sourcesink.c:240:34: warning: symbol 'ss_iso_source_comp_desc' was not declared. Should it be static? drivers/usb/gadget/f_sourcesink.c:258:34: warning: symbol 'ss_iso_sink_comp_desc' was not declared. Should it be static? Signed-off-by: Jingoo Han Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index 5d4251e..d3cd52d 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -202,7 +202,7 @@ static struct usb_endpoint_descriptor ss_source_desc = { .wMaxPacketSize = cpu_to_le16(1024), }; -struct usb_ss_ep_comp_descriptor ss_source_comp_desc = { +static struct usb_ss_ep_comp_descriptor ss_source_comp_desc = { .bLength = USB_DT_SS_EP_COMP_SIZE, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, @@ -219,7 +219,7 @@ static struct usb_endpoint_descriptor ss_sink_desc = { .wMaxPacketSize = cpu_to_le16(1024), }; -struct usb_ss_ep_comp_descriptor ss_sink_comp_desc = { +static struct usb_ss_ep_comp_descriptor ss_sink_comp_desc = { .bLength = USB_DT_SS_EP_COMP_SIZE, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, @@ -237,7 +237,7 @@ static struct usb_endpoint_descriptor ss_iso_source_desc = { .bInterval = 4, }; -struct usb_ss_ep_comp_descriptor ss_iso_source_comp_desc = { +static struct usb_ss_ep_comp_descriptor ss_iso_source_comp_desc = { .bLength = USB_DT_SS_EP_COMP_SIZE, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, @@ -255,7 +255,7 @@ static struct usb_endpoint_descriptor ss_iso_sink_desc = { .bInterval = 4, }; -struct usb_ss_ep_comp_descriptor ss_iso_sink_comp_desc = { +static struct usb_ss_ep_comp_descriptor ss_iso_sink_comp_desc = { .bLength = USB_DT_SS_EP_COMP_SIZE, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, -- cgit v0.10.2 From 8cf4328569acc37ac5c5b4eb27ae86c3758f627b Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Fri, 13 Dec 2013 13:44:17 -0800 Subject: usbtest: Fix BOS control test for USB 2.01 devices. Commit c952a8ba7136505cd1ca01735cc748ddc08c7d2f "usb: usbtest: add a test case to support bos for queue control" will cause USB 2.01 and USB 2.10 devices with a BOS descriptor to fail case 15 of the control test. The Link PM errata (released in 2007, updated in 2011) says: "The value of the bcdUSB field in the standard USB 2.0 Device Descriptor is used to indicate that the device supports the request to read the BOS Descriptor (i.e. GetDescriptor(BOS)). Devices that support the BOS descriptor must have a bcdUSB value of 0201H or larger." The current code says that non-SuperSpeed devices *must* return -EPIPE, as this comment shows: /* sign of this variable means: * -: tested code must return this (negative) error code * +: tested code may return this (negative too) error code */ int expected = 0; This means the test will fail with USB 2.01 and USB 2.10 devices that provide a BOS descriptor. Change it to only require a stall response if the USB device bcdUSB is less than 2.01. Signed-off-by: Sarah Sharp Acked-by: Huang Rui diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index bff058e..446ff55 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1224,7 +1224,7 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) len = le16_to_cpu(udev->bos->desc->wTotalLength); else len = sizeof(struct usb_bos_descriptor); - if (udev->speed != USB_SPEED_SUPER) + if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201) expected = -EPIPE; break; default: -- cgit v0.10.2 From 599459d8230bd6af9c354e00ad6608c43b6f7426 Mon Sep 17 00:00:00 2001 From: Lin Wang Date: Tue, 17 Dec 2013 17:59:54 +0000 Subject: xhci: Remove unused variable 'addr' in inc_deq() and inc_enq(). This patch remove unused variable 'addr' in inc_deq() and inc_enq(). Signed-off-by: Lin Wang Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index d26cd94..afa28ce8 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -156,8 +156,6 @@ static void next_trb(struct xhci_hcd *xhci, */ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) { - unsigned long long addr; - ring->deq_updates++; /* @@ -186,8 +184,6 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) ring->dequeue++; } } while (last_trb(xhci, ring, ring->deq_seg, ring->dequeue)); - - addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue); } /* @@ -212,7 +208,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, { u32 chain; union xhci_trb *next; - unsigned long long addr; chain = le32_to_cpu(ring->enqueue->generic.field[3]) & TRB_CHAIN; /* If this is not event ring, there is one less usable TRB */ @@ -264,7 +259,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, ring->enqueue = ring->enq_seg->trbs; next = ring->enqueue; } - addr = (unsigned long long) xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue); } /* -- cgit v0.10.2 From 226b3a2e2e2e0c7325ead563a84b6555e2f3347a Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Tue, 10 Dec 2013 12:10:33 -0600 Subject: usb: wusbcore: add isochronous IN support to HWA This patch adds support for isochronous IN transfers to the HWA driver. The changes include removing the checks that return errors for isoc IN URBs and adding functionality to read the isoc data returned from the HWA. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index a70e142..2afa886 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -488,13 +488,14 @@ static int __wa_seg_calculate_isoc_frame_count(struct wa_xfer *xfer, && ((segment_size + iso_frame_desc[index].length) <= xfer->seg_size)) { /* - * For Alereon HWA devices, only include an isoc frame in a - * segment if it is physically contiguous with the previous + * For Alereon HWA devices, only include an isoc frame in an + * out segment if it is physically contiguous with the previous * frame. This is required because those devices expect * the isoc frames to be sent as a single USB transaction as * opposed to one transaction per frame with standard HWA. */ if ((xfer->wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) + && (xfer->is_inbound == 0) && (index > isoc_frame_offset) && ((iso_frame_desc[index - 1].offset + iso_frame_desc[index - 1].length) != @@ -537,14 +538,8 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, result = sizeof(struct wa_xfer_bi); break; case USB_ENDPOINT_XFER_ISOC: - if (usb_pipeout(urb->pipe)) { - *pxfer_type = WA_XFER_TYPE_ISO; - result = sizeof(struct wa_xfer_hwaiso); - } else { - dev_err(dev, "FIXME: ISOC IN not implemented\n"); - result = -ENOSYS; - goto error; - } + *pxfer_type = WA_XFER_TYPE_ISO; + result = sizeof(struct wa_xfer_hwaiso); break; default: /* never happens */ @@ -555,10 +550,22 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, xfer->is_dma = urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP ? 1 : 0; maxpktsize = le16_to_cpu(rpipe->descr.wMaxPacketSize); + xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks) + * 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1); + /* Compute the segment size and make sure it is a multiple of + * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of + * a check (FIXME) */ + if (xfer->seg_size < maxpktsize) { + dev_err(dev, + "HW BUG? seg_size %zu smaller than maxpktsize %zu\n", + xfer->seg_size, maxpktsize); + result = -EINVAL; + goto error; + } + xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; if ((rpipe->descr.bmAttribute & 0x3) == USB_ENDPOINT_XFER_ISOC) { int index = 0; - xfer->seg_size = maxpktsize; xfer->segs = 0; /* * loop over urb->number_of_packets to determine how many @@ -571,19 +578,6 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, ++xfer->segs; } } else { - xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks) - * 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1); - /* Compute the segment size and make sure it is a multiple of - * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of - * a check (FIXME) */ - if (xfer->seg_size < maxpktsize) { - dev_err(dev, - "HW BUG? seg_size %zu smaller than maxpktsize %zu\n", - xfer->seg_size, maxpktsize); - result = -EINVAL; - goto error; - } - xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length, xfer->seg_size); if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL) @@ -844,7 +838,7 @@ static void wa_seg_iso_pack_desc_cb(struct urb *urb) wa_xfer_id(xfer), seg->index, urb->status); if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)){ - dev_err(dev, "DTO: URB max acceptable errors exceeded, resetting device\n"); + dev_err(dev, "iso xfer: URB max acceptable errors exceeded, resetting device\n"); wa_reset_all(wa); } if (seg->status != WA_SEG_ERROR) { @@ -1108,7 +1102,7 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) const struct usb_endpoint_descriptor *dto_epd = xfer->wa->dto_epd; struct wa_seg *seg; size_t buf_itr, buf_size, buf_itr_size; - int xfer_isoc_frame_offset = 0; + int isoc_frame_offset = 0; result = -ENOMEM; xfer->seg = kcalloc(xfer->segs, sizeof(xfer->seg[0]), GFP_ATOMIC); @@ -1121,10 +1115,14 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) size_t iso_pkt_descr_size = 0; int seg_isoc_frame_count = 0, seg_isoc_size = 0; + /* + * Adjust the size of the segment object to contain space for + * the isoc packet descriptor buffer. + */ if (usb_pipeisoc(xfer->urb->pipe)) { seg_isoc_frame_count = __wa_seg_calculate_isoc_frame_count(xfer, - xfer_isoc_frame_offset, &seg_isoc_size); + isoc_frame_offset, &seg_isoc_size); iso_pkt_descr_size = sizeof(struct wa_xfer_packet_info_hwaiso) + @@ -1137,15 +1135,40 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) wa_seg_init(seg); seg->xfer = xfer; seg->index = cnt; - seg->isoc_frame_count = seg_isoc_frame_count; - seg->isoc_frame_offset = xfer_isoc_frame_offset; - seg->isoc_size = seg_isoc_size; usb_fill_bulk_urb(&seg->tr_urb, usb_dev, usb_sndbulkpipe(usb_dev, dto_epd->bEndpointAddress), &seg->xfer_hdr, xfer_hdr_size, wa_seg_tr_cb, seg); buf_itr_size = min(buf_size, xfer->seg_size); + + if (usb_pipeisoc(xfer->urb->pipe)) { + seg->isoc_frame_count = seg_isoc_frame_count; + seg->isoc_frame_offset = isoc_frame_offset; + seg->isoc_size = seg_isoc_size; + /* iso packet descriptor. */ + seg->isoc_pack_desc_urb = + usb_alloc_urb(0, GFP_ATOMIC); + if (seg->isoc_pack_desc_urb == NULL) + goto error_iso_pack_desc_alloc; + /* + * The buffer for the isoc packet descriptor starts + * after the transfer request header in the + * segment object memory buffer. + */ + usb_fill_bulk_urb( + seg->isoc_pack_desc_urb, usb_dev, + usb_sndbulkpipe(usb_dev, + dto_epd->bEndpointAddress), + (void *)(&seg->xfer_hdr) + + xfer_hdr_size, + iso_pkt_descr_size, + wa_seg_iso_pack_desc_cb, seg); + + /* adjust starting frame offset for next seg. */ + isoc_frame_offset += seg_isoc_frame_count; + } + if (xfer->is_inbound == 0 && buf_size > 0) { /* outbound data. */ seg->dto_urb = usb_alloc_urb(0, GFP_ATOMIC); @@ -1158,25 +1181,6 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) NULL, 0, wa_seg_dto_cb, seg); if (usb_pipeisoc(xfer->urb->pipe)) { - /* iso packet descriptor. */ - seg->isoc_pack_desc_urb = - usb_alloc_urb(0, GFP_ATOMIC); - if (seg->isoc_pack_desc_urb == NULL) - goto error_iso_pack_desc_alloc; - /* - * The buffer for the isoc packet descriptor - * after the transfer request header in the - * segment object memory buffer. - */ - usb_fill_bulk_urb( - seg->isoc_pack_desc_urb, usb_dev, - usb_sndbulkpipe(usb_dev, - dto_epd->bEndpointAddress), - (void *)(&seg->xfer_hdr) + - xfer_hdr_size, - iso_pkt_descr_size, - wa_seg_iso_pack_desc_cb, seg); - /* * Fill in the xfer buffer information for the * first isoc frame. Subsequent frames in this @@ -1184,9 +1188,7 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) * DTO completion routine, if needed. */ __wa_populate_dto_urb_isoc(xfer, seg, - xfer_isoc_frame_offset); - /* adjust starting frame offset for next seg. */ - xfer_isoc_frame_offset += seg_isoc_frame_count; + seg->isoc_frame_offset); } else { /* fill in the xfer buffer information. */ result = __wa_populate_dto_urb(xfer, seg, @@ -1207,10 +1209,11 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) * Use the fact that cnt is left at were it failed. The remaining * segments will be cleaned up by wa_xfer_destroy. */ -error_iso_pack_desc_alloc: error_seg_outbound_populate: usb_free_urb(xfer->seg[cnt]->dto_urb); error_dto_alloc: + usb_free_urb(xfer->seg[cnt]->isoc_pack_desc_urb); +error_iso_pack_desc_alloc: kfree(xfer->seg[cnt]); xfer->seg[cnt] = NULL; error_seg_kmalloc: @@ -1325,8 +1328,6 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, } /* submit the isoc packet descriptor if present. */ if (seg->isoc_pack_desc_urb) { - struct wahc *wa = xfer->wa; - result = usb_submit_urb(seg->isoc_pack_desc_urb, GFP_ATOMIC); seg->isoc_frame_index = 0; if (result < 0) { @@ -1334,23 +1335,24 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, __func__, xfer, seg->index, result); goto error_iso_pack_desc_submit; } - /* - * If this segment contains more than one isoc frame, hold - * onto the dto resource until we send all frames. - * Only applies to non-Alereon devices. - */ - if (((wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) == 0) - && (seg->isoc_frame_count > 1)) - *dto_done = 0; } /* submit the out data if this is an out request. */ if (seg->dto_urb) { + struct wahc *wa = xfer->wa; result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); if (result < 0) { pr_err("%s: xfer %p#%u: DTO submit failed: %d\n", __func__, xfer, seg->index, result); goto error_dto_submit; } + /* + * If this segment contains more than one isoc frame, hold + * onto the dto resource until we send all frames. + * Only applies to non-Alereon devices. + */ + if (((wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) == 0) + && (seg->isoc_frame_count > 1)) + *dto_done = 0; } seg->status = WA_SEG_SUBMITTED; rpipe_avail_dec(rpipe); @@ -2032,6 +2034,25 @@ static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer, } } +/* Populate the wa->buf_in_urb based on the current isoc transfer state. */ +static void __wa_populate_buf_in_urb_isoc(struct wahc *wa, struct wa_xfer *xfer, + struct wa_seg *seg, int curr_iso_frame) +{ + BUG_ON(wa->buf_in_urb->status == -EINPROGRESS); + + /* this should always be 0 before a resubmit. */ + wa->buf_in_urb->num_mapped_sgs = 0; + wa->buf_in_urb->transfer_dma = xfer->urb->transfer_dma + + xfer->urb->iso_frame_desc[curr_iso_frame].offset; + wa->buf_in_urb->transfer_buffer_length = + xfer->urb->iso_frame_desc[curr_iso_frame].length; + wa->buf_in_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + wa->buf_in_urb->transfer_buffer = NULL; + wa->buf_in_urb->sg = NULL; + wa->buf_in_urb->num_sgs = 0; + wa->buf_in_urb->context = seg; +} + /* Populate the wa->buf_in_urb based on the current transfer state. */ static int wa_populate_buf_in_urb(struct wahc *wa, struct wa_xfer *xfer, unsigned int seg_idx, unsigned int bytes_transferred) @@ -2143,12 +2164,13 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer, */ if (xfer_result->bTransferSegment & 0x80) wa_complete_remaining_xfer_segs(xfer, seg, WA_SEG_DONE); - if (usb_pipeisoc(xfer->urb->pipe)) { + if (usb_pipeisoc(xfer->urb->pipe) + && (le32_to_cpu(xfer_result->dwNumOfPackets) > 0)) { /* set up WA state to read the isoc packet status next. */ wa->dti_isoc_xfer_in_progress = wa_xfer_id(xfer); wa->dti_isoc_xfer_seg = seg_idx; wa->dti_state = WA_DTI_ISOC_PACKET_STATUS_PENDING; - } else if ((xfer->is_inbound) + } else if (xfer->is_inbound && !usb_pipeisoc(xfer->urb->pipe) && (bytes_transferred > 0)) { /* IN data phase: read to buffer */ seg->status = WA_SEG_DTI_PENDING; @@ -2241,7 +2263,7 @@ segment_aborted: * * inbound transfers: need to schedule a buf_in_urb read */ -static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb) +static int wa_process_iso_packet_status(struct wahc *wa, struct urb *urb) { struct device *dev = &wa->usb_iface->dev; struct wa_xfer_packet_status_hwaiso *packet_status; @@ -2250,8 +2272,8 @@ static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb) unsigned long flags; struct wa_seg *seg; struct wa_rpipe *rpipe; - unsigned done = 0; - unsigned rpipe_ready = 0, seg_index; + unsigned done = 0, dti_busy = 0, data_frame_count = 0, seg_index; + unsigned first_frame_index = 0, rpipe_ready = 0; int expected_size; /* We have a xfer result buffer; check it */ @@ -2287,18 +2309,48 @@ static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb) le16_to_cpu(packet_status->wLength)); goto error_bad_seg; } - /* isoc packet status and lengths back xfer urb. */ + /* write isoc packet status and lengths back to the xfer urb. */ status_array = packet_status->PacketStatus; + xfer->urb->start_frame = + wa->wusb->usb_hcd.driver->get_frame_number(&wa->wusb->usb_hcd); for (seg_index = 0; seg_index < seg->isoc_frame_count; ++seg_index) { - xfer->urb->iso_frame_desc[seg->index].status = + struct usb_iso_packet_descriptor *iso_frame_desc = + xfer->urb->iso_frame_desc; + const int urb_frame_index = + seg->isoc_frame_offset + seg_index; + + iso_frame_desc[urb_frame_index].status = wa_xfer_status_to_errno( le16_to_cpu(status_array[seg_index].PacketStatus)); - xfer->urb->iso_frame_desc[seg->index].actual_length = + iso_frame_desc[urb_frame_index].actual_length = le16_to_cpu(status_array[seg_index].PacketLength); + /* track the number of frames successfully transferred. */ + if (iso_frame_desc[urb_frame_index].actual_length > 0) { + /* save the starting frame index for buf_in_urb. */ + if (!data_frame_count) + first_frame_index = seg_index; + ++data_frame_count; + } } - if (!xfer->is_inbound) { - /* OUT transfer, complete it -- */ + if (xfer->is_inbound && data_frame_count) { + int result; + + seg->isoc_frame_index = first_frame_index; + /* submit a read URB for the first frame with data. */ + __wa_populate_buf_in_urb_isoc(wa, xfer, seg, + seg->isoc_frame_index + seg->isoc_frame_offset); + + result = usb_submit_urb(wa->buf_in_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit buf in URB (%d)", + result); + wa_reset_all(wa); + } else if (data_frame_count > 1) + /* If we need to read multiple frames, set DTI busy. */ + dti_busy = 1; + } else { + /* OUT transfer or no more IN data, complete it -- */ seg->status = WA_SEG_DONE; xfer->segs_done++; rpipe_ready = rpipe_avail_inc(rpipe); @@ -2311,13 +2363,13 @@ static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb) if (rpipe_ready) wa_xfer_delayed_run(rpipe); wa_xfer_put(xfer); - return; + return dti_busy; error_bad_seg: spin_unlock_irqrestore(&xfer->lock, flags); wa_xfer_put(xfer); error_parse_buffer: - return; + return dti_busy; } /* @@ -2337,7 +2389,7 @@ static void wa_buf_in_cb(struct urb *urb) struct wahc *wa; struct device *dev; struct wa_rpipe *rpipe; - unsigned rpipe_ready; + unsigned rpipe_ready = 0, seg_index, isoc_data_frame_count = 0; unsigned long flags; u8 done = 0; @@ -2345,19 +2397,61 @@ static void wa_buf_in_cb(struct urb *urb) kfree(urb->sg); urb->sg = NULL; + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + + if (usb_pipeisoc(xfer->urb->pipe)) { + /* + * Find the next isoc frame with data. Bail out after + * isoc_data_frame_count > 1 since there is no need to walk + * the entire frame array. We just need to know if + * isoc_data_frame_count is 0, 1, or >1. + */ + seg_index = seg->isoc_frame_index + 1; + while ((seg_index < seg->isoc_frame_count) + && (isoc_data_frame_count <= 1)) { + struct usb_iso_packet_descriptor *iso_frame_desc = + xfer->urb->iso_frame_desc; + const int urb_frame_index = + seg->isoc_frame_offset + seg_index; + + if (iso_frame_desc[urb_frame_index].actual_length > 0) { + /* save the index of the next frame with data */ + if (!isoc_data_frame_count) + seg->isoc_frame_index = seg_index; + ++isoc_data_frame_count; + } + ++seg_index; + } + } + spin_unlock_irqrestore(&xfer->lock, flags); + switch (urb->status) { case 0: spin_lock_irqsave(&xfer->lock, flags); - wa = xfer->wa; - dev = &wa->usb_iface->dev; - rpipe = xfer->ep->hcpriv; - dev_dbg(dev, "xfer %p#%u: data in done (%zu bytes)\n", - xfer, seg->index, (size_t)urb->actual_length); - seg->status = WA_SEG_DONE; - seg->result = urb->actual_length; - xfer->segs_done++; - rpipe_ready = rpipe_avail_inc(rpipe); - done = __wa_xfer_is_done(xfer); + + seg->result += urb->actual_length; + if (isoc_data_frame_count > 0) { + int result; + /* submit a read URB for the first frame with data. */ + __wa_populate_buf_in_urb_isoc(wa, xfer, seg, + seg->isoc_frame_index + seg->isoc_frame_offset); + result = usb_submit_urb(wa->buf_in_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit buf in URB (%d)", + result); + wa_reset_all(wa); + } + } else { + rpipe = xfer->ep->hcpriv; + seg->status = WA_SEG_DONE; + dev_dbg(dev, "xfer %p#%u: data in done (%zu bytes)\n", + xfer, seg->index, seg->result); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } spin_unlock_irqrestore(&xfer->lock, flags); if (done) wa_xfer_completion(xfer); @@ -2369,8 +2463,6 @@ static void wa_buf_in_cb(struct urb *urb) break; default: /* Other errors ... */ spin_lock_irqsave(&xfer->lock, flags); - wa = xfer->wa; - dev = &wa->usb_iface->dev; rpipe = xfer->ep->hcpriv; if (printk_ratelimit()) dev_err(dev, "xfer %p#%u: data in error %d\n", @@ -2393,6 +2485,20 @@ static void wa_buf_in_cb(struct urb *urb) if (rpipe_ready) wa_xfer_delayed_run(rpipe); } + /* + * If we are in this callback and isoc_data_frame_count > 0, it means + * that the dti_urb submission was delayed in wa_dti_cb. Once + * isoc_data_frame_count gets to 1, we can submit the deferred URB + * since the last buf_in_urb was just submitted. + */ + if (isoc_data_frame_count == 1) { + int result = usb_submit_urb(wa->dti_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit DTI URB (%d)\n", + result); + wa_reset_all(wa); + } + } } /* @@ -2423,7 +2529,7 @@ static void wa_buf_in_cb(struct urb *urb) */ static void wa_dti_cb(struct urb *urb) { - int result; + int result, dti_busy = 0; struct wahc *wa = urb->context; struct device *dev = &wa->usb_iface->dev; u32 xfer_id; @@ -2471,7 +2577,7 @@ static void wa_dti_cb(struct urb *urb) wa_xfer_result_chew(wa, xfer, xfer_result); wa_xfer_put(xfer); } else if (wa->dti_state == WA_DTI_ISOC_PACKET_STATUS_PENDING) { - wa_process_iso_packet_status(wa, urb); + dti_busy = wa_process_iso_packet_status(wa, urb); } else { dev_err(dev, "DTI Error: unexpected EP state = %d\n", wa->dti_state); @@ -2494,12 +2600,15 @@ static void wa_dti_cb(struct urb *urb) dev_err(dev, "DTI: URB error %d\n", urb->status); break; } - /* Resubmit the DTI URB */ - result = usb_submit_urb(wa->dti_urb, GFP_ATOMIC); - if (result < 0) { - dev_err(dev, "DTI Error: Could not submit DTI URB (%d), " - "resetting\n", result); - wa_reset_all(wa); + + /* Resubmit the DTI URB if we are not busy processing isoc in frames. */ + if (!dti_busy) { + result = usb_submit_urb(wa->dti_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit DTI URB (%d)\n", + result); + wa_reset_all(wa); + } } out: return; @@ -2566,8 +2675,8 @@ void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr) NULL, 0, wa_buf_in_cb, wa); result = usb_submit_urb(wa->dti_urb, GFP_KERNEL); if (result < 0) { - dev_err(dev, "DTI Error: Could not submit DTI URB (%d), " - "resetting\n", result); + dev_err(dev, "DTI Error: Could not submit DTI URB (%d) resetting\n", + result); goto error_dti_urb_submit; } out: -- cgit v0.10.2 From e5e4746510d140261918aecce2e5e3aa4456f7e9 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 18 Dec 2013 15:40:10 +0530 Subject: usb: usbtest: Add timetout to simple_io() Without a timetout some tests e.g. test_halt() can remain stuck forever. Signed-off-by: Roger Quadros Reviewed-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index bff058e..6265c54 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -10,6 +10,7 @@ #include +#define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */ /*-------------------------------------------------------------------------*/ @@ -366,6 +367,7 @@ static int simple_io( int max = urb->transfer_buffer_length; struct completion completion; int retval = 0; + unsigned long expire; urb->context = &completion; while (retval == 0 && iterations-- > 0) { @@ -378,9 +380,15 @@ static int simple_io( if (retval != 0) break; - /* NOTE: no timeouts; can't be broken out of by interrupt */ - wait_for_completion(&completion); - retval = urb->status; + expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT); + if (!wait_for_completion_timeout(&completion, expire)) { + usb_kill_urb(urb); + retval = (urb->status == -ENOENT ? + -ETIMEDOUT : urb->status); + } else { + retval = urb->status; + } + urb->dev = udev; if (retval == 0 && usb_pipein(urb->pipe)) retval = simple_check_buf(tdev, urb); -- cgit v0.10.2 From 824d752b04765fc513fe17666a539f6c73960c4e Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 18 Dec 2013 15:40:11 +0530 Subject: usb: usbtest: Always clear halt else further tests will fail In test_halt() we set an endpoint halt condition and return on halt verification failure, then the enpoint will remain halted and all further tests related to that enpoint will fail. This is because we don't tackle endpoint halt error condition in any of the tests. To avoid that situation, make sure to clear the halt condition before exiting test_halt(). Signed-off-by: Roger Quadros Reviewed-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 6265c54..0317f10 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1554,8 +1554,17 @@ static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) return retval; } retval = verify_halted(tdev, ep, urb); - if (retval < 0) + if (retval < 0) { + int ret; + + /* clear halt anyways, else further tests will fail */ + ret = usb_clear_halt(urb->dev, urb->pipe); + if (ret) + ERROR(tdev, "ep %02x couldn't clear halt, %d\n", + ep, ret); + return retval; + } /* clear halt (tests API + protocol), verify it worked */ retval = usb_clear_halt(urb->dev, urb->pipe); -- cgit v0.10.2 From 4d90b819ae4c7ea8fd5e2bb7edc68c0f334be2e4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=BC=A0=E5=90=9B?= Date: Wed, 18 Dec 2013 15:37:17 +0800 Subject: usb: option: add new zte 3g modem pids to option driver Signed-off-by: Jun zhang Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 496b7e39..71c875a 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1446,6 +1446,17 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0178, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xffe9, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8b, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8c, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8d, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8e, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff8f, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff90, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff91, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff92, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff93, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff94, 0xff, 0xff, 0xff) }, /* NOTE: most ZTE CDMA devices should be driven by zte_ev, not option */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2718, 0xff, 0xff, 0xff), -- cgit v0.10.2 From cca2bbb3083de44394cabe7b3e9937d44bcc8e19 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 9 Dec 2013 09:51:53 +0100 Subject: usb: ohci-at91: replace request_mem_region + ioremap by devm_ioremap_resource Replace the request_mem_region + ioremap calls by the devm_ioremap_resource call which does the same things but with device managed resources. Signed-off-by: Boris BREZILLON Acked-by: Nicolas Ferre Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 29d2093..a015327 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -154,24 +154,17 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, hcd->rsrc_start = pdev->resource[0].start; hcd->rsrc_len = resource_size(&pdev->resource[0]); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed\n"); - retval = -EBUSY; - goto err1; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed\n"); - retval = -EIO; - goto err2; + hcd->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(hcd->regs)) { + retval = PTR_ERR(hcd->regs); + goto err; } iclk = clk_get(&pdev->dev, "ohci_clk"); if (IS_ERR(iclk)) { dev_err(&pdev->dev, "failed to get ohci_clk\n"); retval = PTR_ERR(iclk); - goto err3; + goto err; } fclk = clk_get(&pdev->dev, "uhpck"); if (IS_ERR(fclk)) { @@ -217,13 +210,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, err4: clk_put(iclk); - err3: - iounmap(hcd->regs); - - err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - - err1: + err: usb_put_hcd(hcd); return retval; } @@ -246,8 +233,6 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd, { usb_remove_hcd(hcd); at91_stop_hc(pdev); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); if (IS_ENABLED(CONFIG_COMMON_CLK)) -- cgit v0.10.2 From 5b218a07f23ed71d5ab74b271643654bf094cc94 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 9 Dec 2013 09:51:54 +0100 Subject: usb: ohci-at91: use dev variable instead of &pdev->dev Make use of the dev variable instead of referencing the dev field of the pdev struct. Signed-off-by: Boris BREZILLON Acked-by: Nicolas Ferre Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index a015327..ea70c3e 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -148,7 +148,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, return -ENODEV; } - hcd = usb_create_hcd(driver, &pdev->dev, "at91"); + hcd = usb_create_hcd(driver, dev, "at91"); if (!hcd) return -ENOMEM; hcd->rsrc_start = pdev->resource[0].start; @@ -160,28 +160,28 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, goto err; } - iclk = clk_get(&pdev->dev, "ohci_clk"); + iclk = clk_get(dev, "ohci_clk"); if (IS_ERR(iclk)) { - dev_err(&pdev->dev, "failed to get ohci_clk\n"); + dev_err(dev, "failed to get ohci_clk\n"); retval = PTR_ERR(iclk); goto err; } - fclk = clk_get(&pdev->dev, "uhpck"); + fclk = clk_get(dev, "uhpck"); if (IS_ERR(fclk)) { - dev_err(&pdev->dev, "failed to get uhpck\n"); + dev_err(dev, "failed to get uhpck\n"); retval = PTR_ERR(fclk); goto err4; } - hclk = clk_get(&pdev->dev, "hclk"); + hclk = clk_get(dev, "hclk"); if (IS_ERR(hclk)) { - dev_err(&pdev->dev, "failed to get hclk\n"); + dev_err(dev, "failed to get hclk\n"); retval = PTR_ERR(hclk); goto err5; } if (IS_ENABLED(CONFIG_COMMON_CLK)) { - uclk = clk_get(&pdev->dev, "usb_clk"); + uclk = clk_get(dev, "usb_clk"); if (IS_ERR(uclk)) { - dev_err(&pdev->dev, "failed to get uclk\n"); + dev_err(dev, "failed to get uclk\n"); retval = PTR_ERR(uclk); goto err6; } -- cgit v0.10.2 From fc7a3252f683733d0f51688ce93c479fe75cdb0f Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 9 Dec 2013 09:51:55 +0100 Subject: usb: ohci-at91: use device managed clk retrieval Replace clk_get calls by devm_clk_get calls. Signed-off-by: Boris BREZILLON Acked-by: Nicolas Ferre Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index ea70c3e..6d4cf93 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -160,30 +160,30 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, goto err; } - iclk = clk_get(dev, "ohci_clk"); + iclk = devm_clk_get(dev, "ohci_clk"); if (IS_ERR(iclk)) { dev_err(dev, "failed to get ohci_clk\n"); retval = PTR_ERR(iclk); goto err; } - fclk = clk_get(dev, "uhpck"); + fclk = devm_clk_get(dev, "uhpck"); if (IS_ERR(fclk)) { dev_err(dev, "failed to get uhpck\n"); retval = PTR_ERR(fclk); - goto err4; + goto err; } - hclk = clk_get(dev, "hclk"); + hclk = devm_clk_get(dev, "hclk"); if (IS_ERR(hclk)) { dev_err(dev, "failed to get hclk\n"); retval = PTR_ERR(hclk); - goto err5; + goto err; } if (IS_ENABLED(CONFIG_COMMON_CLK)) { - uclk = clk_get(dev, "usb_clk"); + uclk = devm_clk_get(dev, "usb_clk"); if (IS_ERR(uclk)) { dev_err(dev, "failed to get uclk\n"); retval = PTR_ERR(uclk); - goto err6; + goto err; } } @@ -201,15 +201,6 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, /* Error handling */ at91_stop_hc(pdev); - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_put(uclk); - err6: - clk_put(hclk); - err5: - clk_put(fclk); - err4: - clk_put(iclk); - err: usb_put_hcd(hcd); return retval; @@ -234,13 +225,6 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd, usb_remove_hcd(hcd); at91_stop_hc(pdev); usb_put_hcd(hcd); - - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_put(uclk); - clk_put(hclk); - clk_put(fclk); - clk_put(iclk); - fclk = iclk = hclk = NULL; } /*-------------------------------------------------------------------------*/ -- cgit v0.10.2 From f4fbb6d56474d0eae9b819b1549476d2470e12be Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:17:54 +0900 Subject: USB: ehci-fsl: use dev_warn() instead of printk() Use dev_warn() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 854a68f..7cd23b6 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -268,7 +268,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd, if (!(spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) & PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0) || in_be32(non_ehci + FSL_SOC_USB_PRICTRL))) { - printk(KERN_WARNING "fsl-ehci: USB PHY clock invalid\n"); + dev_warn(hcd->self.controller, "USB PHY clock invalid\n"); return -EINVAL; } } -- cgit v0.10.2 From fc32f116cbcb6b37bcf35db6a05562680b597d6b Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:19:18 +0900 Subject: USB: ehci-grlib: use dev_err() instead of printk() Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index 054792c..495b6fb 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -113,7 +113,8 @@ static int ehci_hcd_grlib_probe(struct platform_device *op) irq = irq_of_parse_and_map(dn, 0); if (irq == NO_IRQ) { - printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__); + dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n", + __FILE__); rv = -EBUSY; goto err_irq; } -- cgit v0.10.2 From fb53e9467e7fe3473607d8f9e75bfc1cecad58dd Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:20:30 +0900 Subject: USB: ehci-orion: use dev_warn() instead of printk() Use dev_warn() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Acked-by: Jason Cooper Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index aa8b92b..4ca6120 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -245,7 +245,7 @@ static int ehci_orion_drv_probe(struct platform_device *pdev) case EHCI_PHY_DD: case EHCI_PHY_KW: default: - printk(KERN_WARNING "Orion ehci -USB phy version isn't supported.\n"); + dev_warn(&pdev->dev, "USB phy version isn't supported.\n"); } err = usb_add_hcd(hcd, irq, IRQF_SHARED); -- cgit v0.10.2 From 346c8b241cb1b9de7a5b79d1b022988f55f2c85d Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:21:52 +0900 Subject: USB: ehci-ppc-of: use dev_err() instead of printk() Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index b0965eb..5479247 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -119,7 +119,8 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op) irq = irq_of_parse_and_map(dn, 0); if (irq == NO_IRQ) { - printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__); + dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n", + __FILE__); rv = -EBUSY; goto err_irq; } -- cgit v0.10.2 From a74cf5ccbd489c54c7531af94cc19cd88a41a7b9 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:24:24 +0900 Subject: USB: ehci-xilinx-of: use dev_err() instead of printk() Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index 3cd2efa..fe57710 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -155,7 +155,8 @@ static int ehci_hcd_xilinx_of_probe(struct platform_device *op) irq = irq_of_parse_and_map(dn, 0); if (!irq) { - printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__); + dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n", + __FILE__); rv = -EBUSY; goto err_irq; } -- cgit v0.10.2 From 0a3aa0d311c367b6df23a74c50e9a9ba2965e334 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:25:09 +0900 Subject: USB: ohci-omap: use dev_err() instead of printk() Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index a44a4fe..c923caf 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -311,14 +311,14 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, struct usb_hcd *hcd = 0; if (pdev->num_resources != 2) { - printk(KERN_ERR "hcd probe: invalid num_resources: %i\n", + dev_err(&pdev->dev, "invalid num_resources: %i\n", pdev->num_resources); return -ENODEV; } if (pdev->resource[0].flags != IORESOURCE_MEM || pdev->resource[1].flags != IORESOURCE_IRQ) { - printk(KERN_ERR "hcd probe: invalid resource type\n"); + dev_err(&pdev->dev, "invalid resource type\n"); return -ENODEV; } -- cgit v0.10.2 From 63c9b9d3fe3b1b39a235755f724ab4378f21137c Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 10 Dec 2013 21:26:26 +0900 Subject: USB: ohci-ppc-of: use dev_err() instead of printk() Use dev_err() instead of printk() to provide a better message to userspace. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 83e33d4..2ee1787 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -116,21 +116,23 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op) hcd->rsrc_len = resource_size(&res); if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__); + dev_err(&op->dev, "%s: request_mem_region failed\n", + __FILE__); rv = -EBUSY; goto err_rmr; } irq = irq_of_parse_and_map(dn, 0); if (irq == NO_IRQ) { - printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__); + dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n", + __FILE__); rv = -EBUSY; goto err_irq; } hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); if (!hcd->regs) { - printk(KERN_ERR "%s: ioremap failed\n", __FILE__); + dev_err(&op->dev, "%s: ioremap failed\n", __FILE__); rv = -ENOMEM; goto err_ioremap; } -- cgit v0.10.2 From 806f6e6b92d8f1bf303198a3e78cf1ff99bd5c0e Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:16:33 +0900 Subject: USB: ehci-orion: Use devm_*() functions Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han Acked-by: Jason Cooper Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 4ca6120..30d35e5 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -184,33 +184,23 @@ static int ehci_orion_drv_probe(struct platform_device *pdev) if (err) goto err1; - if (!request_mem_region(res->start, resource_size(res), - ehci_orion_hc_driver.description)) { - dev_dbg(&pdev->dev, "controller already in use\n"); - err = -EBUSY; + regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(regs)) { + err = PTR_ERR(regs); goto err1; } - regs = ioremap(res->start, resource_size(res)); - if (regs == NULL) { - dev_dbg(&pdev->dev, "error mapping memory\n"); - err = -EFAULT; - goto err2; - } - /* Not all platforms can gate the clock, so it is not an error if the clock does not exists. */ - clk = clk_get(&pdev->dev, NULL); - if (!IS_ERR(clk)) { + clk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(clk)) clk_prepare_enable(clk); - clk_put(clk); - } hcd = usb_create_hcd(&ehci_orion_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { err = -ENOMEM; - goto err3; + goto err2; } hcd->rsrc_start = res->start; @@ -250,21 +240,16 @@ static int ehci_orion_drv_probe(struct platform_device *pdev) err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) - goto err4; + goto err3; device_wakeup_enable(hcd->self.controller); return 0; -err4: - usb_put_hcd(hcd); err3: - if (!IS_ERR(clk)) { - clk_disable_unprepare(clk); - clk_put(clk); - } - iounmap(regs); + usb_put_hcd(hcd); err2: - release_mem_region(res->start, resource_size(res)); + if (!IS_ERR(clk)) + clk_disable_unprepare(clk); err1: dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), err); @@ -278,15 +263,11 @@ static int ehci_orion_drv_remove(struct platform_device *pdev) struct clk *clk; usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); - clk = clk_get(&pdev->dev, NULL); - if (!IS_ERR(clk)) { + clk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(clk)) clk_disable_unprepare(clk); - clk_put(clk); - } return 0; } -- cgit v0.10.2 From 7667fe69e743c338bb121678dd14f1dc3ae27acb Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:18:53 +0900 Subject: USB: ehci-fsl: Use devm_ioremap_resource() Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 7cd23b6..6f2c8d3 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -102,19 +102,11 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, } hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, - driver->description)) { - dev_dbg(&pdev->dev, "controller already in use\n"); - retval = -EBUSY; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + retval = PTR_ERR(hcd->regs); goto err2; } - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - - if (hcd->regs == NULL) { - dev_dbg(&pdev->dev, "error mapping memory\n"); - retval = -EFAULT; - goto err3; - } pdata->regs = hcd->regs; @@ -126,7 +118,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, */ if (pdata->init && pdata->init(pdev)) { retval = -ENODEV; - goto err4; + goto err2; } /* Enable USB controller, 83xx or 8536 */ @@ -137,7 +129,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval != 0) - goto err4; + goto err2; device_wakeup_enable(hcd->self.controller); #ifdef CONFIG_USB_OTG @@ -153,21 +145,17 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, &ehci_to_hcd(ehci)->self); if (retval) { usb_put_phy(hcd->phy); - goto err4; + goto err2; } } else { dev_err(&pdev->dev, "can't find phy\n"); retval = -ENODEV; - goto err4; + goto err2; } } #endif return retval; - err4: - iounmap(hcd->regs); - err3: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err2: usb_put_hcd(hcd); err1: @@ -206,8 +194,6 @@ static void usb_hcd_fsl_remove(struct usb_hcd *hcd, */ if (pdata->exit) pdata->exit(pdev); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); } -- cgit v0.10.2 From 49aa57bda7e54ee6e37844bae83e122f44b30637 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:20:06 +0900 Subject: USB: ehci-octeon: Use devm_ioremap_resource() Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han Acked-by: David Daney Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index c4ad7ed..9051439 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -128,20 +128,12 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev) hcd->rsrc_start = res_mem->start; hcd->rsrc_len = resource_size(res_mem); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, - OCTEON_EHCI_HCD_NAME)) { - dev_err(&pdev->dev, "request_mem_region failed\n"); - ret = -EBUSY; + hcd->regs = devm_ioremap_resource(&pdev->dev, res_mem); + if (IS_ERR(hcd->regs)) { + ret = PTR_ERR(hcd->regs); goto err1; } - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; - goto err2; - } - ehci_octeon_start(); ehci = hcd_to_ehci(hcd); @@ -156,19 +148,16 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) { dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret); - goto err3; + goto err2; } device_wakeup_enable(hcd->self.controller); platform_set_drvdata(pdev, hcd); return 0; -err3: +err2: ehci_octeon_stop(); - iounmap(hcd->regs); -err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: usb_put_hcd(hcd); return ret; @@ -181,8 +170,6 @@ static int ehci_octeon_drv_remove(struct platform_device *pdev) usb_remove_hcd(hcd); ehci_octeon_stop(); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); return 0; -- cgit v0.10.2 From f1080e4d90b2c0ec3ce850a9fad8ac8a79df3b23 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:26:21 +0900 Subject: USB: ohci-pxa27x:Use devm_*() functions Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 9352a4d..d21d5fe 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -388,37 +388,28 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device return -ENXIO; } - usb_clk = clk_get(&pdev->dev, NULL); + usb_clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(usb_clk)) return PTR_ERR(usb_clk); hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x"); - if (!hcd) { - retval = -ENOMEM; - goto err0; - } + if (!hcd) + return -ENOMEM; r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!r) { pr_err("no resource of IORESOURCE_MEM"); retval = -ENXIO; - goto err1; + goto err; } hcd->rsrc_start = r->start; hcd->rsrc_len = resource_size(r); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed"); - retval = -EBUSY; - goto err1; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed"); - retval = -ENOMEM; - goto err2; + hcd->regs = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(hcd->regs)) { + retval = PTR_ERR(hcd->regs); + goto err; } /* initialize "struct pxa27x_ohci" */ @@ -429,7 +420,7 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device retval = pxa27x_start_hc(pxa_ohci, &pdev->dev); if (retval < 0) { pr_debug("pxa27x_start_hc failed"); - goto err3; + goto err; } /* Select Power Management Mode */ @@ -449,14 +440,8 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device } pxa27x_stop_hc(pxa_ohci, &pdev->dev); - err3: - iounmap(hcd->regs); - err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - err1: + err: usb_put_hcd(hcd); - err0: - clk_put(usb_clk); return retval; } @@ -480,9 +465,6 @@ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) usb_remove_hcd(hcd); pxa27x_stop_hc(pxa_ohci, &pdev->dev); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - clk_put(pxa_ohci->clk); usb_put_hcd(hcd); } -- cgit v0.10.2 From c81c3b0115d7d1bd83137eb800ed6c16c86182e2 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:24:17 +0900 Subject: USB: ohci-jz4740: Use devm_*() functions Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-jz4740.c b/drivers/usb/host/ohci-jz4740.c index efe31f3..af8dc1b 100644 --- a/drivers/usb/host/ohci-jz4740.c +++ b/drivers/usb/host/ohci-jz4740.c @@ -174,31 +174,23 @@ static int jz4740_ohci_probe(struct platform_device *pdev) jz4740_ohci = hcd_to_jz4740_hcd(hcd); - res = request_mem_region(res->start, resource_size(res), hcd_name); - if (!res) { - dev_err(&pdev->dev, "Failed to request mem region.\n"); - ret = -EBUSY; - goto err_free; - } - hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - hcd->regs = ioremap(res->start, resource_size(res)); - if (!hcd->regs) { - dev_err(&pdev->dev, "Failed to ioremap registers.\n"); - ret = -EBUSY; - goto err_release_mem; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + ret = PTR_ERR(hcd->regs); + goto err_free; } - jz4740_ohci->clk = clk_get(&pdev->dev, "uhc"); + jz4740_ohci->clk = devm_clk_get(&pdev->dev, "uhc"); if (IS_ERR(jz4740_ohci->clk)) { ret = PTR_ERR(jz4740_ohci->clk); dev_err(&pdev->dev, "Failed to get clock: %d\n", ret); - goto err_iounmap; + goto err_free; } - jz4740_ohci->vbus = regulator_get(&pdev->dev, "vbus"); + jz4740_ohci->vbus = devm_regulator_get(&pdev->dev, "vbus"); if (IS_ERR(jz4740_ohci->vbus)) jz4740_ohci->vbus = NULL; @@ -222,17 +214,10 @@ static int jz4740_ohci_probe(struct platform_device *pdev) return 0; err_disable: - if (jz4740_ohci->vbus) { + if (jz4740_ohci->vbus) regulator_disable(jz4740_ohci->vbus); - regulator_put(jz4740_ohci->vbus); - } clk_disable(jz4740_ohci->clk); - clk_put(jz4740_ohci->clk); -err_iounmap: - iounmap(hcd->regs); -err_release_mem: - release_mem_region(res->start, resource_size(res)); err_free: usb_put_hcd(hcd); @@ -246,16 +231,10 @@ static int jz4740_ohci_remove(struct platform_device *pdev) usb_remove_hcd(hcd); - if (jz4740_ohci->vbus) { + if (jz4740_ohci->vbus) regulator_disable(jz4740_ohci->vbus); - regulator_put(jz4740_ohci->vbus); - } clk_disable(jz4740_ohci->clk); - clk_put(jz4740_ohci->clk); - - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); -- cgit v0.10.2 From 644db16636555b30611b612d5059914147e07042 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:23:39 +0900 Subject: USB: ohci-da8xx: Use devm_*() functions Use devm_*() functions to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index f0fe0d2..df06be6 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -300,41 +300,28 @@ static int usb_hcd_da8xx_probe(const struct hc_driver *driver, if (hub == NULL) return -ENODEV; - usb11_clk = clk_get(&pdev->dev, "usb11"); + usb11_clk = devm_clk_get(&pdev->dev, "usb11"); if (IS_ERR(usb11_clk)) return PTR_ERR(usb11_clk); - usb20_clk = clk_get(&pdev->dev, "usb20"); - if (IS_ERR(usb20_clk)) { - error = PTR_ERR(usb20_clk); - goto err0; - } + usb20_clk = devm_clk_get(&pdev->dev, "usb20"); + if (IS_ERR(usb20_clk)) + return PTR_ERR(usb20_clk); hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); - if (!hcd) { - error = -ENOMEM; - goto err1; - } + if (!hcd) + return -ENOMEM; mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - error = -ENODEV; - goto err2; - } + if (!mem) + return -ENODEV; hcd->rsrc_start = mem->start; hcd->rsrc_len = resource_size(mem); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - dev_dbg(&pdev->dev, "request_mem_region failed\n"); - error = -EBUSY; - goto err2; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - dev_err(&pdev->dev, "ioremap failed\n"); - error = -ENOMEM; - goto err3; + hcd->regs = devm_ioremap_resource(&pdev->dev, mem); + if (IS_ERR(hcd->regs)) { + error = PTR_ERR(hcd->regs); + goto err; } ohci_hcd_init(hcd_to_ohci(hcd)); @@ -342,11 +329,11 @@ static int usb_hcd_da8xx_probe(const struct hc_driver *driver, irq = platform_get_irq(pdev, 0); if (irq < 0) { error = -ENODEV; - goto err4; + goto err; } error = usb_add_hcd(hcd, irq, 0); if (error) - goto err4; + goto err; device_wakeup_enable(hcd->self.controller); @@ -357,16 +344,8 @@ static int usb_hcd_da8xx_probe(const struct hc_driver *driver, } usb_remove_hcd(hcd); -err4: - iounmap(hcd->regs); -err3: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -err2: +err: usb_put_hcd(hcd); -err1: - clk_put(usb20_clk); -err0: - clk_put(usb11_clk); return error; } @@ -386,11 +365,7 @@ usb_hcd_da8xx_remove(struct usb_hcd *hcd, struct platform_device *pdev) hub->ocic_notify(NULL); usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); - clk_put(usb20_clk); - clk_put(usb11_clk); } static int ohci_hcd_da8xx_drv_probe(struct platform_device *dev) -- cgit v0.10.2 From 849da2dce5277107327adc5692170512e7cb8064 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:20:35 +0900 Subject: USB: ehci-w90x900: Use devm_ioremap_resource() Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index 12c1a56..a9303af 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -58,17 +58,12 @@ static int usb_w90x900_probe(const struct hc_driver *driver, hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - retval = -EBUSY; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + retval = PTR_ERR(hcd->regs); goto err2; } - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (hcd->regs == NULL) { - retval = -EFAULT; - goto err3; - } - ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; ehci->regs = hcd->regs + @@ -88,18 +83,14 @@ static int usb_w90x900_probe(const struct hc_driver *driver, irq = platform_get_irq(pdev, 0); if (irq < 0) - goto err4; + goto err2; retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval != 0) - goto err4; + goto err2; device_wakeup_enable(hcd->self.controller); return retval; -err4: - iounmap(hcd->regs); -err3: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err2: usb_put_hcd(hcd); err1: @@ -110,8 +101,6 @@ static void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev) { usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); } -- cgit v0.10.2 From ac8d81f36c93315a3819105a2701b5a5112e218b Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:30:35 +0900 Subject: USB: ohci-nxp: Use devm_clk_get() Use devm_clk_get() to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index 719f28e..ba180ed 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -196,17 +196,17 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) __raw_writel(USB_SLAVE_HCLK_EN | PAD_CONTROL_LAST_DRIVEN, USB_CTRL); /* Enable USB PLL */ - usb_pll_clk = clk_get(&pdev->dev, "ck_pll5"); + usb_pll_clk = devm_clk_get(&pdev->dev, "ck_pll5"); if (IS_ERR(usb_pll_clk)) { dev_err(&pdev->dev, "failed to acquire USB PLL\n"); ret = PTR_ERR(usb_pll_clk); - goto fail_pll; + goto fail_disable; } ret = clk_enable(usb_pll_clk); if (ret < 0) { dev_err(&pdev->dev, "failed to start USB PLL\n"); - goto fail_pllen; + goto fail_disable; } ret = clk_set_rate(usb_pll_clk, 48000); @@ -216,21 +216,21 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) } /* Enable USB device clock */ - usb_dev_clk = clk_get(&pdev->dev, "ck_usbd"); + usb_dev_clk = devm_clk_get(&pdev->dev, "ck_usbd"); if (IS_ERR(usb_dev_clk)) { dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n"); ret = PTR_ERR(usb_dev_clk); - goto fail_dev; + goto fail_rate; } ret = clk_enable(usb_dev_clk); if (ret < 0) { dev_err(&pdev->dev, "failed to start USB DEV Clock\n"); - goto fail_deven; + goto fail_rate; } /* Enable USB otg clocks */ - usb_otg_clk = clk_get(&pdev->dev, "ck_usb_otg"); + usb_otg_clk = devm_clk_get(&pdev->dev, "ck_usb_otg"); if (IS_ERR(usb_otg_clk)) { dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n"); ret = PTR_ERR(usb_otg_clk); @@ -242,7 +242,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) ret = clk_enable(usb_otg_clk); if (ret < 0) { dev_err(&pdev->dev, "failed to start USB DEV Clock\n"); - goto fail_otgen; + goto fail_otg; } isp1301_configure(); @@ -284,18 +284,10 @@ fail_resource: usb_put_hcd(hcd); fail_hcd: clk_disable(usb_otg_clk); -fail_otgen: - clk_put(usb_otg_clk); fail_otg: clk_disable(usb_dev_clk); -fail_deven: - clk_put(usb_dev_clk); -fail_dev: fail_rate: clk_disable(usb_pll_clk); -fail_pllen: - clk_put(usb_pll_clk); -fail_pll: fail_disable: isp1301_i2c_client = NULL; return ret; @@ -309,9 +301,7 @@ static int ohci_hcd_nxp_remove(struct platform_device *pdev) ohci_nxp_stop_hc(); usb_put_hcd(hcd); clk_disable(usb_pll_clk); - clk_put(usb_pll_clk); clk_disable(usb_dev_clk); - clk_put(usb_dev_clk); i2c_unregister_device(isp1301_i2c_client); isp1301_i2c_client = NULL; -- cgit v0.10.2 From 3e2e714e7d6cf85ec799f6b1105972f7962f3c80 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:28:23 +0900 Subject: USB: ohci-ppc-of: Use devm_ioremap_resource() Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 2ee1787..965e3e9 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -115,10 +115,9 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op) hcd->rsrc_start = res.start; hcd->rsrc_len = resource_size(&res); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - dev_err(&op->dev, "%s: request_mem_region failed\n", - __FILE__); - rv = -EBUSY; + hcd->regs = devm_ioremap_resource(&op->dev, &res); + if (IS_ERR(hcd->regs)) { + rv = PTR_ERR(hcd->regs); goto err_rmr; } @@ -127,14 +126,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op) dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n", __FILE__); rv = -EBUSY; - goto err_irq; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - dev_err(&op->dev, "%s: ioremap failed\n", __FILE__); - rv = -ENOMEM; - goto err_ioremap; + goto err_rmr; } ohci = hcd_to_ohci(hcd); @@ -178,11 +170,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op) pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__); } - iounmap(hcd->regs); -err_ioremap: irq_dispose_mapping(irq); -err_irq: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err_rmr: usb_put_hcd(hcd); @@ -197,9 +185,7 @@ static int ohci_hcd_ppc_of_remove(struct platform_device *op) usb_remove_hcd(hcd); - iounmap(hcd->regs); irq_dispose_mapping(hcd->irq); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); -- cgit v0.10.2 From 09796be19a7ff45aef763d3bb01053be8cdb915a Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:29:15 +0900 Subject: USB: ohci-spear: Use devm_ioremap_resource() Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han Acked-by: Viresh Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index 4cb98ab..8b29a0c 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -81,17 +81,10 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev) hcd->rsrc_start = pdev->resource[0].start; hcd->rsrc_len = resource_size(res); - if (!devm_request_mem_region(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len, - hcd_name)) { - dev_dbg(&pdev->dev, "request_mem_region failed\n"); - retval = -EBUSY; - goto err_put_hcd; - } - hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - dev_dbg(&pdev->dev, "ioremap failed\n"); - retval = -ENOMEM; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + retval = PTR_ERR(hcd->regs); goto err_put_hcd; } -- cgit v0.10.2 From 81574fc65f67ca5948ee80af0ec030a20a802dd3 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 11 Dec 2013 16:27:17 +0900 Subject: USB: ohci-octeon: Use devm_ioremap_resource() Use devm_ioremap_resource() to make cleanup paths simpler. Signed-off-by: Jingoo Han Acked-by: David Daney Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-octeon.c b/drivers/usb/host/ohci-octeon.c index 49b220d..15af895 100644 --- a/drivers/usb/host/ohci-octeon.c +++ b/drivers/usb/host/ohci-octeon.c @@ -138,20 +138,12 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev) hcd->rsrc_start = res_mem->start; hcd->rsrc_len = resource_size(res_mem); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, - OCTEON_OHCI_HCD_NAME)) { - dev_err(&pdev->dev, "request_mem_region failed\n"); - ret = -EBUSY; + reg_base = devm_ioremap_resource(&pdev->dev, res_mem); + if (IS_ERR(reg_base)) { + ret = PTR_ERR(reg_base); goto err1; } - reg_base = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!reg_base) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -ENOMEM; - goto err2; - } - ohci_octeon_hw_start(); hcd->regs = reg_base; @@ -168,7 +160,7 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev) ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) { dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret); - goto err3; + goto err2; } device_wakeup_enable(hcd->self.controller); @@ -177,12 +169,9 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev) return 0; -err3: +err2: ohci_octeon_hw_stop(); - iounmap(hcd->regs); -err2: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: usb_put_hcd(hcd); return ret; @@ -195,8 +184,6 @@ static int ohci_octeon_drv_remove(struct platform_device *pdev) usb_remove_hcd(hcd); ohci_octeon_hw_stop(); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); return 0; -- cgit v0.10.2 From 2fc711d763520fa4ec2f15b204efc61585817a39 Mon Sep 17 00:00:00 2001 From: George Cherian Date: Wed, 18 Dec 2013 18:52:09 +0530 Subject: usb: phy: am335x: Enable USB remote wakeup using PHY wakeup USB remote wakeup using PHY wakeup is supported only in standby mode. Enabling the PHY_WKUP will break DS0 mode of system suspend. If the same is enabled while entering DS0, AM33xx never stays in DS0, it returns immediately from DS0. By default make the PHY wakeup disabled, using sysfs entry enable the same manually to get the remote wakeup working from standby. echo enabled > /sys/bus/platform/device//power/wakeup This will enable the PHY wakeup while going to standby. PHY wakeup feature is required to wakeup the system from standby state. Since AM33xx has a bug in which PHY wakeup should not be enabled while entering DS0, disable the same by default. A user wishing to use USB wakeup from standby mode need to enable the same using the sysfs entries. Also remove am335x_phy_runtime_(suspend/resume) this driver doesnot really enable/disable the clocks to the PHY. Add am335x_phy_(suspend/resume) and use the same for enabling the PHY_WKUP. Signed-off-by: George Cherian Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c index 0e3c60c..e8088fa 100644 --- a/drivers/usb/phy/phy-am335x.c +++ b/drivers/usb/phy/phy-am335x.c @@ -63,6 +63,19 @@ static int am335x_phy_probe(struct platform_device *pdev) am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown; platform_set_drvdata(pdev, am_phy); + device_init_wakeup(dev, true); + + /* + * If we leave PHY wakeup enabled then AM33XX wakes up + * immediately from DS0. To avoid this we mark dev->power.can_wakeup + * to false. The same is checked in suspend routine to decide + * on whether to enable PHY wakeup or not. + * PHY wakeup works fine in standby mode, there by allowing us to + * handle remote wakeup, wakeup on disconnect and connect. + */ + + device_set_wakeup_enable(dev, false); + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false); return 0; } @@ -75,40 +88,51 @@ static int am335x_phy_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_RUNTIME - -static int am335x_phy_runtime_suspend(struct device *dev) +#ifdef CONFIG_PM_SLEEP +static int am335x_phy_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct am335x_phy *am_phy = platform_get_drvdata(pdev); + /* + * Enable phy wakeup only if dev->power.can_wakeup is true. + * Make sure to enable wakeup to support remote wakeup in + * standby mode ( same is not supported in OFF(DS0) mode). + * Enable it by doing + * echo enabled > /sys/bus/platform/devices//power/wakeup + */ + if (device_may_wakeup(dev)) phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, true); + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false); + return 0; } -static int am335x_phy_runtime_resume(struct device *dev) +static int am335x_phy_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct am335x_phy *am_phy = platform_get_drvdata(pdev); phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true); + if (device_may_wakeup(dev)) phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, false); + return 0; } +#define DEV_PM_OPS (&am335x_pm_ops) +#else +#define DEV_PM_OPS NULL +#endif + static const struct dev_pm_ops am335x_pm_ops = { - SET_RUNTIME_PM_OPS(am335x_phy_runtime_suspend, - am335x_phy_runtime_resume, NULL) + .suspend = am335x_phy_suspend, + .resume = am335x_phy_resume, }; -#define DEV_PM_OPS (&am335x_pm_ops) -#else -#define DEV_PM_OPS NULL -#endif - static const struct of_device_id am335x_phy_ids[] = { { .compatible = "ti,am335x-usb-phy" }, { } -- cgit v0.10.2 From 13518673f1419f2667985a6fca4543e44143408b Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Wed, 18 Dec 2013 16:41:25 +0200 Subject: usb: dwc3: fix the glue drivers using the nop phy The reset_gpio member of the usb_phy_gen_xceiv_platform_data structure needs the have negative value or phy-generic's probe will fail unless DT is used. 0 is a valid gpio number. This fixes an issue where phy-generic fails to probe with message: "usb_phy_gen_xceiv.0: Error requesting RESET GPIO 0". Cc: Signed-off-by: Heikki Krogerus Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index 8b20c70..28c8ad7 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -50,6 +50,7 @@ static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos) exynos->usb2_phy = pdev; pdata.type = USB_PHY_TYPE_USB2; + pdata.gpio_reset = -1; ret = platform_device_add_data(exynos->usb2_phy, &pdata, sizeof(pdata)); if (ret) diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 665686e..f393c18 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -52,6 +52,7 @@ static int dwc3_pci_register_phys(struct dwc3_pci *glue) glue->usb2_phy = pdev; pdata.type = USB_PHY_TYPE_USB2; + pdata.gpio_reset = -1; ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata)); if (ret) -- cgit v0.10.2 From 0009e99ab7f505fefdade85d65b982774d41c06d Mon Sep 17 00:00:00 2001 From: Rashika Kheria Date: Thu, 19 Dec 2013 15:37:37 +0530 Subject: usb: gadget: configfs: include appropriate header file in configfs.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Include appropriate header file drivers/usb/gadget/configfs.h in gadget/configfs.c because function unregister_gadget_item() has its prototype declaration in gadget/configfs.h. This eliminates the following warning in gadget/configfs.c: drivers/usb/gadget/configfs.c:994:6: warning: no previous prototype for ‘unregister_gadget_item’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria Reviewed-by: Josh Triplett Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index d6c8ab4..7d1cc01 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -4,6 +4,7 @@ #include #include #include +#include "configfs.h" int check_user_usb_string(const char *name, struct usb_gadget_strings *stringtab_dev) -- cgit v0.10.2 From db67bc04bdc8cac2307af09c92cd73751905ec0e Mon Sep 17 00:00:00 2001 From: Rashika Kheria Date: Thu, 19 Dec 2013 15:44:34 +0530 Subject: usb: phy: am335x-control: include appropriate header file in phy-am335x-control.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Include header file drivers/usb/phy/am35x-phy-control.h in phy/phy-am335x-control.c because function am335x_get_phy_control() has its prototype declaration in drivers/usb/phy/am35x-phy-control.h. Also, remove definition of structure phy_control because it is already defined in the included header. This eliminates the following warning in phy/phy-am335x-control.c: drivers/usb/phy/phy-am335x-control.c:114:21: warning: no previous prototype for ‘am335x_get_phy_control’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria Reviewed-by: Josh Triplett Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c index 634f49a..d75196a 100644 --- a/drivers/usb/phy/phy-am335x-control.c +++ b/drivers/usb/phy/phy-am335x-control.c @@ -3,11 +3,7 @@ #include #include #include - -struct phy_control { - void (*phy_power)(struct phy_control *phy_ctrl, u32 id, bool on); - void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on); -}; +#include "am35x-phy-control.h" struct am335x_control_usb { struct device *dev; -- cgit v0.10.2 From c4b34a3b7a505dd63268cf6dcf57d10068b47cb6 Mon Sep 17 00:00:00 2001 From: George Cherian Date: Tue, 15 Oct 2013 15:32:14 +0530 Subject: usb: phy: omap: Add omap-control Support for AM437x This adds omap control module support for USBSS in AM437x SoC. Update DT binding information to reflect these changes. Acked-by: Roger Quadros Signed-off-by: George Cherian Signed-off-by: Felipe Balbi diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt index 090e5e2..c495135 100644 --- a/Documentation/devicetree/bindings/usb/omap-usb.txt +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt @@ -87,6 +87,8 @@ Required properties: e.g. USB3 PHY and SATA PHY on OMAP5. "ti,control-phy-dra7usb2" - if it has power down register like USB2 PHY on DRA7 platform. + "ti,control-phy-am437usb2" - if it has power down register like USB2 PHY on + AM437 platform. - reg : Address and length of the register set for the device. It contains the address of "otghs_control" for control-phy-otghs or "power" register for other types. diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c index 09c5ace..e725318 100644 --- a/drivers/usb/phy/phy-omap-control.c +++ b/drivers/usb/phy/phy-omap-control.c @@ -84,6 +84,20 @@ void omap_control_usb_phy_power(struct device *dev, int on) else val |= OMAP_CTRL_USB2_PHY_PD; break; + + case OMAP_CTRL_TYPE_AM437USB2: + if (on) { + val &= ~(AM437X_CTRL_USB2_PHY_PD | + AM437X_CTRL_USB2_OTG_PD); + val |= (AM437X_CTRL_USB2_OTGVDET_EN | + AM437X_CTRL_USB2_OTGSESSEND_EN); + } else { + val &= ~(AM437X_CTRL_USB2_OTGVDET_EN | + AM437X_CTRL_USB2_OTGSESSEND_EN); + val |= (AM437X_CTRL_USB2_PHY_PD | + AM437X_CTRL_USB2_OTG_PD); + } + break; default: dev_err(dev, "%s: type %d not recognized\n", __func__, control_usb->type); @@ -197,6 +211,7 @@ static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS; static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2; static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3; static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2; +static const enum omap_control_usb_type am437usb2_data = OMAP_CTRL_TYPE_AM437USB2; static const struct of_device_id omap_control_usb_id_table[] = { { @@ -215,6 +230,10 @@ static const struct of_device_id omap_control_usb_id_table[] = { .compatible = "ti,control-phy-dra7usb2", .data = &dra7usb2_data, }, + { + .compatible = "ti,control-phy-am437usb2", + .data = &am437usb2_data, + }, {}, }; MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h index 596b019..69ae383 100644 --- a/include/linux/usb/omap_control_usb.h +++ b/include/linux/usb/omap_control_usb.h @@ -24,6 +24,7 @@ enum omap_control_usb_type { OMAP_CTRL_TYPE_USB2, /* USB2_PHY, power down in CONTROL_DEV_CONF */ OMAP_CTRL_TYPE_PIPE3, /* PIPE3 PHY, DPLL & seperate Rx/Tx power */ OMAP_CTRL_TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */ + OMAP_CTRL_TYPE_AM437USB2, /* USB2 PHY, power e.g. AM437x */ }; struct omap_control_usb { @@ -64,6 +65,11 @@ enum omap_control_usb_mode { #define OMAP_CTRL_USB2_PHY_PD BIT(28) +#define AM437X_CTRL_USB2_PHY_PD BIT(0) +#define AM437X_CTRL_USB2_OTG_PD BIT(1) +#define AM437X_CTRL_USB2_OTGVDET_EN BIT(19) +#define AM437X_CTRL_USB2_OTGSESSEND_EN BIT(20) + #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB) extern void omap_control_usb_phy_power(struct device *dev, int on); extern void omap_control_usb_set_mode(struct device *dev, -- cgit v0.10.2 From 56b1b909d7afa5e0415363fafec3df0fc34b95c5 Mon Sep 17 00:00:00 2001 From: "Du, ChangbinX" Date: Tue, 17 Dec 2013 11:47:42 +0000 Subject: usb: gadget: should use u16 type variable to store MaxPower From 7e827a0d300e084f74c65122baa5e3193f9a7f18 Mon Sep 17 00:00:00 2001 From: "Du, Changbin" Date: Mon, 16 Dec 2013 20:32:13 +0800 Subject: [PATCH] usb/gadget: should use u16 type variable to store MaxPower The MaxPower field is of u16 type. So using u8 type variable can break data (high byte lost). Signed-off-by: Du, Changbin Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 43cbd76..d742bed 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1728,7 +1728,7 @@ composite_resume(struct usb_gadget *gadget) { struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_function *f; - u8 maxpower; + u16 maxpower; /* REVISIT: should we have config level * suspend/resume callbacks? -- cgit v0.10.2 From 8ed1fb790ea24bb223e3b30e2b22bccf5b0a76c9 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 18 Dec 2013 20:23:46 +0100 Subject: usb: musb: finish suspend/reset work independently from musb_hub_control() Currently, resume and reset is completed when the USB core calls back the root hub, asking for the port's state. This results in unpredictable timing of state assertion, which in turn renders some USB devices unusable after resume. Fix this by moving the logic to end the reset and suspend state out of musb_hub_control() into separate functions called from delayed workers. GetPortStatus only reports the current state now, without taking any real action. The rh_timeout variable is kept in order to define a minimum time gap between reset and resume only. FWIW, in my case, a Verbatim "STORE N GO" mass storage device won't resume cleanly without this patch. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 1ecdb94..0e7f4a0 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -478,8 +478,8 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, musb->port1_status |= (USB_PORT_STAT_C_SUSPEND << 16) | MUSB_PORT_STAT_RESUME; - musb->rh_timer = jiffies - + msecs_to_jiffies(20); + schedule_delayed_work( + &musb->finish_resume_work, 20); musb->xceiv->state = OTG_STATE_A_HOST; musb->is_active = 1; @@ -1813,6 +1813,21 @@ static void musb_free(struct musb *musb) musb_host_free(musb); } +static void musb_deassert_reset(struct work_struct *work) +{ + struct musb *musb; + unsigned long flags; + + musb = container_of(work, struct musb, deassert_reset_work.work); + + spin_lock_irqsave(&musb->lock, flags); + + if (musb->port1_status & USB_PORT_STAT_RESET) + musb_port_reset(musb, false); + + spin_unlock_irqrestore(&musb->lock, flags); +} + /* * Perform generic per-controller initialization. * @@ -1897,6 +1912,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) /* Init IRQ workqueue before request_irq */ INIT_WORK(&musb->irq_work, musb_irq_work); + INIT_DELAYED_WORK(&musb->deassert_reset_work, musb_deassert_reset); + INIT_DELAYED_WORK(&musb->finish_resume_work, musb_host_finish_resume); /* setup musb parts of the core (especially endpoints) */ status = musb_core_init(plat->config->multipoint @@ -1990,6 +2007,8 @@ fail4: fail3: cancel_work_sync(&musb->irq_work); + cancel_delayed_work_sync(&musb->finish_resume_work); + cancel_delayed_work_sync(&musb->deassert_reset_work); if (musb->dma_controller) dma_controller_destroy(musb->dma_controller); fail2_5: @@ -2053,6 +2072,8 @@ static int musb_remove(struct platform_device *pdev) dma_controller_destroy(musb->dma_controller); cancel_work_sync(&musb->irq_work); + cancel_delayed_work_sync(&musb->finish_resume_work); + cancel_delayed_work_sync(&musb->deassert_reset_work); musb_free(musb); device_init_wakeup(dev, 0); return 0; diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 29f7cd7..7083e82 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -47,6 +47,7 @@ #include #include #include +#include struct musb; struct musb_hw_ep; @@ -295,6 +296,8 @@ struct musb { irqreturn_t (*isr)(int, void *); struct work_struct irq_work; + struct delayed_work deassert_reset_work; + struct delayed_work finish_resume_work; u16 hwvers; u16 intrrxe; diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 7436c24..909ba49 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -94,6 +94,7 @@ extern void musb_host_resume_root_hub(struct musb *musb); extern void musb_host_poke_root_hub(struct musb *musb); extern void musb_port_suspend(struct musb *musb, bool do_suspend); extern void musb_port_reset(struct musb *musb, bool do_reset); +extern void musb_host_finish_resume(struct work_struct *work); #else static inline struct musb *hcd_to_musb(struct usb_hcd *hcd) { @@ -125,6 +126,7 @@ static inline void musb_host_poll_rh_status(struct musb *musb) {} static inline void musb_host_poke_root_hub(struct musb *musb) {} static inline void musb_port_suspend(struct musb *musb, bool do_suspend) {} static inline void musb_port_reset(struct musb *musb) {} +static inline void musb_host_finish_resume(struct work_struct *work) {} #endif struct usb_hcd; diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 24e46c0..ad417fd 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -44,6 +44,37 @@ #include "musb_core.h" +void musb_host_finish_resume(struct work_struct *work) +{ + struct musb *musb; + unsigned long flags; + u8 power; + + musb = container_of(work, struct musb, deassert_reset_work.work); + + spin_lock_irqsave(&musb->lock, flags); + + power = musb_readb(musb->mregs, MUSB_POWER); + power &= ~MUSB_POWER_RESUME; + dev_dbg(musb->controller, "root port resume stopped, power %02x\n", + power); + musb_writeb(musb->mregs, MUSB_POWER, power); + + /* + * ISSUE: DaVinci (RTL 1.300) disconnects after + * resume of high speed peripherals (but not full + * speed ones). + */ + musb->is_active = 1; + musb->port1_status &= ~(USB_PORT_STAT_SUSPEND | MUSB_PORT_STAT_RESUME); + musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16; + usb_hcd_poll_rh_status(musb->hcd); + /* NOTE: it might really be A_WAIT_BCON ... */ + musb->xceiv->state = OTG_STATE_A_HOST; + + spin_unlock_irqrestore(&musb->lock, flags); +} + void musb_port_suspend(struct musb *musb, bool do_suspend) { struct usb_otg *otg = musb->xceiv->otg; @@ -105,7 +136,7 @@ void musb_port_suspend(struct musb *musb, bool do_suspend) /* later, GetPortStatus will stop RESUME signaling */ musb->port1_status |= MUSB_PORT_STAT_RESUME; - musb->rh_timer = jiffies + msecs_to_jiffies(20); + schedule_delayed_work(&musb->finish_resume_work, 20); } } @@ -150,7 +181,7 @@ void musb_port_reset(struct musb *musb, bool do_reset) musb->port1_status |= USB_PORT_STAT_RESET; musb->port1_status &= ~USB_PORT_STAT_ENABLE; - musb->rh_timer = jiffies + msecs_to_jiffies(50); + schedule_delayed_work(&musb->deassert_reset_work, 50); } else { dev_dbg(musb->controller, "root port reset stopped\n"); musb_writeb(mbase, MUSB_POWER, @@ -325,36 +356,6 @@ int musb_hub_control( if (wIndex != 1) goto error; - /* finish RESET signaling? */ - if ((musb->port1_status & USB_PORT_STAT_RESET) - && time_after_eq(jiffies, musb->rh_timer)) - musb_port_reset(musb, false); - - /* finish RESUME signaling? */ - if ((musb->port1_status & MUSB_PORT_STAT_RESUME) - && time_after_eq(jiffies, musb->rh_timer)) { - u8 power; - - power = musb_readb(musb->mregs, MUSB_POWER); - power &= ~MUSB_POWER_RESUME; - dev_dbg(musb->controller, "root port resume stopped, power %02x\n", - power); - musb_writeb(musb->mregs, MUSB_POWER, power); - - /* ISSUE: DaVinci (RTL 1.300) disconnects after - * resume of high speed peripherals (but not full - * speed ones). - */ - - musb->is_active = 1; - musb->port1_status &= ~(USB_PORT_STAT_SUSPEND - | MUSB_PORT_STAT_RESUME); - musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16; - usb_hcd_poll_rh_status(musb->hcd); - /* NOTE: it might really be A_WAIT_BCON ... */ - musb->xceiv->state = OTG_STATE_A_HOST; - } - put_unaligned(cpu_to_le32(musb->port1_status & ~MUSB_PORT_STAT_RESUME), (__le32 *) buf); -- cgit v0.10.2 From ff4708e69a633912c5c8e055fc399bf356d7a784 Mon Sep 17 00:00:00 2001 From: Rashika Kheria Date: Thu, 19 Dec 2013 15:42:03 +0530 Subject: drivers: usb: Mark function as static in usbsevseg.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Mark function my_memlen() as static in misc/usbsevseg.c because it is not used outside this file. This eliminates the following warning in misc/usbsevseg.c: drivers/usb/misc/usbsevseg.c:60:15: warning: no previous prototype for ‘my_memlen’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria Reviewed-by: Josh Triplett Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c index b2d82b9..0a87d3e 100644 --- a/drivers/usb/misc/usbsevseg.c +++ b/drivers/usb/misc/usbsevseg.c @@ -57,7 +57,7 @@ struct usb_sevsegdev { * if str commands are used, we would assume the end of string * so mem commands are used. */ -inline size_t my_memlen(const char *buf, size_t count) +static inline size_t my_memlen(const char *buf, size_t count) { if (count > 0 && buf[count-1] == '\n') return count - 1; -- cgit v0.10.2 From 8f24c4905cdc86f9ecef1c2690950b219681e749 Mon Sep 17 00:00:00 2001 From: Rashika Kheria Date: Thu, 19 Dec 2013 15:43:17 +0530 Subject: drivers: usb: Mark function as static in metro-usb.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Mark function metrousb_is_unidirectional_mode() in serial/metro-usb.c because it is not used outside this file. This eliminates the following warning in serial/metro-usb.c: drivers/usb/serial/metro-usb.c:57:12: warning: no previous prototype for ‘metrousb_is_unidirectional_mode’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria Reviewed-by: Josh Triplett Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 40ccf6e..2b648c4 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -54,7 +54,7 @@ MODULE_DEVICE_TABLE(usb, id_table); #define UNI_CMD_OPEN 0x80 #define UNI_CMD_CLOSE 0xFF -inline int metrousb_is_unidirectional_mode(struct usb_serial_port *port) +static inline int metrousb_is_unidirectional_mode(struct usb_serial_port *port) { __u16 product_id = le16_to_cpu( port->serial->dev->descriptor.idProduct); -- cgit v0.10.2 From 1ce0fd15be2888569d4cea25fbd548f5f91c23a1 Mon Sep 17 00:00:00 2001 From: Levente Kurusa Date: Thu, 19 Dec 2013 16:06:51 +0100 Subject: uwb: umc-dev: add missing put_device call This is required so that we give up the last reference to the device. Signed-off-by: Levente Kurusa Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/umc-dev.c b/drivers/uwb/umc-dev.c index 4613c13..7b0b268 100644 --- a/drivers/uwb/umc-dev.c +++ b/drivers/uwb/umc-dev.c @@ -66,6 +66,7 @@ int umc_device_register(struct umc_dev *umc) return 0; error_device_register: + put_device(&umc->dev); release_resource(&umc->resource); error_request_resource: return err; -- cgit v0.10.2 From 9005355af23856c55a5538c9024355785424821b Mon Sep 17 00:00:00 2001 From: Jack Pham Date: Fri, 15 Nov 2013 14:53:14 -0800 Subject: usb: xhci: Check for XHCI_PLAT in xhci_cleanup_msix() If CONFIG_PCI is enabled, make sure xhci_cleanup_msix() doesn't try to free a bogus PCI IRQ or dereference an invalid pci_dev when the xHCI device is actually a platform_device. This patch should be backported to kernels as old as 3.9, that contain the commit 52fb61250a7a132b0cfb9f4a1060a1f3c49e5a25 "xhci-plat: Don't enable legacy PCI interrupts." Signed-off-by: Jack Pham Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 6bc966c..f8ffc51 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -325,6 +325,9 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + if (xhci->quirks & XHCI_PLAT) + return; + xhci_free_irq(xhci); if (xhci->msix_entries) { -- cgit v0.10.2 From 5b022849c84d426a2a365d916b5015b3bf6ad9db Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 19 Dec 2013 15:43:10 -0800 Subject: usb: gadget: fix up some comments about CONFIG_USB_DEBUG These two gadget drivers said that their #endif was for CONFIG_USB_DEBUG, but they really were not, so fix them up to be correct. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c index 7bfa134..a252444 100644 --- a/drivers/usb/gadget/acm_ms.c +++ b/drivers/usb/gadget/acm_ms.c @@ -107,7 +107,7 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; */ #define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS -#endif /* CONFIG_USB_DEBUG */ +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index 4fdaa54..940f6cd 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -134,7 +134,7 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; */ #define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS -#endif /* CONFIG_USB_DEBUG */ +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); -- cgit v0.10.2 From 10434d273ccdcee8eab4f5e08497d65841bbf354 Mon Sep 17 00:00:00 2001 From: Apelete Seketeli Date: Thu, 19 Dec 2013 21:42:26 +0100 Subject: usb: musb: add support for JZ4740 usb device controller Add support for Ingenic JZ4740 USB Device Controller through a specific musb glue layer. JZ4740 UDC not being OTG compatible and missing some hardware registers, this musb glue layer is written from scratch to be used in gadget mode only and take silicon design specifics into account. Signed-off-by: Apelete Seketeli Signed-off-by: Lars-Peter Clausen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 57dfc0c..14d7e72 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -93,6 +93,12 @@ config USB_MUSB_BLACKFIN config USB_MUSB_UX500 tristate "Ux500 platforms" +config USB_MUSB_JZ4740 + tristate "JZ4740" + depends on MACH_JZ4740 || COMPILE_TEST + depends on USB_MUSB_GADGET + depends on USB_OTG_BLACKLIST_HUB + endchoice config USB_MUSB_AM335X_CHILD @@ -100,7 +106,7 @@ config USB_MUSB_AM335X_CHILD choice prompt 'MUSB DMA mode' - default MUSB_PIO_ONLY if ARCH_MULTIPLATFORM + default MUSB_PIO_ONLY if ARCH_MULTIPLATFORM || USB_MUSB_JZ4740 default USB_UX500_DMA if USB_MUSB_UX500 default USB_INVENTRA_DMA if USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN default USB_TI_CPPI_DMA if USB_MUSB_DAVINCI diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile index c5ea5c6..ba49501 100644 --- a/drivers/usb/musb/Makefile +++ b/drivers/usb/musb/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_USB_MUSB_DAVINCI) += davinci.o obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o obj-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o obj-$(CONFIG_USB_MUSB_UX500) += ux500.o +obj-$(CONFIG_USB_MUSB_JZ4740) += jz4740.o obj-$(CONFIG_USB_MUSB_AM335X_CHILD) += musb_am335x.o diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c new file mode 100644 index 0000000..5f30537 --- /dev/null +++ b/drivers/usb/musb/jz4740.c @@ -0,0 +1,201 @@ +/* + * Ingenic JZ4740 "glue layer" + * + * Copyright (C) 2013, Apelete Seketeli + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include + +#include "musb_core.h" + +struct jz4740_glue { + struct device *dev; + struct platform_device *musb; + struct clk *clk; +}; + +static irqreturn_t jz4740_musb_interrupt(int irq, void *__hci) +{ + unsigned long flags; + irqreturn_t retval = IRQ_NONE; + struct musb *musb = __hci; + + spin_lock_irqsave(&musb->lock, flags); + + musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); + musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); + musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); + + /* + * The controller is gadget only, the state of the host mode IRQ bits is + * undefined. Mask them to make sure that the musb driver core will + * never see them set + */ + musb->int_usb &= MUSB_INTR_SUSPEND | MUSB_INTR_RESUME | + MUSB_INTR_RESET | MUSB_INTR_SOF; + + if (musb->int_usb || musb->int_tx || musb->int_rx) + retval = musb_interrupt(musb); + + spin_unlock_irqrestore(&musb->lock, flags); + + return retval; +} + +static struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = { +{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, +{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, +{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 64, }, +}; + +static struct musb_hdrc_config jz4740_musb_config = { + /* Silicon does not implement USB OTG. */ + .multipoint = 0, + /* Max EPs scanned, driver will decide which EP can be used. */ + .num_eps = 4, + /* RAMbits needed to configure EPs from table */ + .ram_bits = 9, + .fifo_cfg = jz4740_musb_fifo_cfg, + .fifo_cfg_size = ARRAY_SIZE(jz4740_musb_fifo_cfg), +}; + +static struct musb_hdrc_platform_data jz4740_musb_platform_data = { + .mode = MUSB_PERIPHERAL, + .config = &jz4740_musb_config, +}; + +static int jz4740_musb_init(struct musb *musb) +{ + musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); + if (!musb->xceiv) { + pr_err("HS UDC: no transceiver configured\n"); + return -ENODEV; + } + + /* Silicon does not implement ConfigData register. + * Set dyn_fifo to avoid reading EP config from hardware. + */ + musb->dyn_fifo = true; + + musb->isr = jz4740_musb_interrupt; + + return 0; +} + +static int jz4740_musb_exit(struct musb *musb) +{ + usb_put_phy(musb->xceiv); + + return 0; +} + +static const struct musb_platform_ops jz4740_musb_ops = { + .init = jz4740_musb_init, + .exit = jz4740_musb_exit, +}; + +static int jz4740_probe(struct platform_device *pdev) +{ + struct musb_hdrc_platform_data *pdata = &jz4740_musb_platform_data; + struct platform_device *musb; + struct jz4740_glue *glue; + struct clk *clk; + int ret; + + glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL); + if (!glue) + return -ENOMEM; + + musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); + if (!musb) { + dev_err(&pdev->dev, "failed to allocate musb device\n"); + return -ENOMEM; + } + + clk = devm_clk_get(&pdev->dev, "udc"); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "failed to get clock\n"); + ret = PTR_ERR(clk); + goto err_platform_device_put; + } + + ret = clk_prepare_enable(clk); + if (ret) { + dev_err(&pdev->dev, "failed to enable clock\n"); + goto err_platform_device_put; + } + + musb->dev.parent = &pdev->dev; + + glue->dev = &pdev->dev; + glue->musb = musb; + glue->clk = clk; + + pdata->platform_ops = &jz4740_musb_ops; + + platform_set_drvdata(pdev, glue); + + ret = platform_device_add_resources(musb, pdev->resource, + pdev->num_resources); + if (ret) { + dev_err(&pdev->dev, "failed to add resources\n"); + goto err_clk_disable; + } + + ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); + if (ret) { + dev_err(&pdev->dev, "failed to add platform_data\n"); + goto err_clk_disable; + } + + ret = platform_device_add(musb); + if (ret) { + dev_err(&pdev->dev, "failed to register musb device\n"); + goto err_clk_disable; + } + + return 0; + +err_clk_disable: + clk_disable_unprepare(clk); +err_platform_device_put: + platform_device_put(musb); + return ret; +} + +static int jz4740_remove(struct platform_device *pdev) +{ + struct jz4740_glue *glue = platform_get_drvdata(pdev); + + platform_device_unregister(glue->musb); + clk_disable_unprepare(glue->clk); + + return 0; +} + +static struct platform_driver jz4740_driver = { + .probe = jz4740_probe, + .remove = jz4740_remove, + .driver = { + .name = "musb-jz4740", + }, +}; + +MODULE_DESCRIPTION("JZ4740 MUSB Glue Layer"); +MODULE_AUTHOR("Apelete Seketeli "); +MODULE_LICENSE("GPL v2"); +module_platform_driver(jz4740_driver); -- cgit v0.10.2 From 23db9fd238d6ca5aa165900bf14fb42e3e2d0815 Mon Sep 17 00:00:00 2001 From: Apelete Seketeli Date: Thu, 19 Dec 2013 21:42:27 +0100 Subject: usb: musb: fix setting JZ4740 gadget periphal mode on reset JZ4740 USB Device Controller is not OTG compatible and does not have DEVCTL register in silicon. During ethernet-over-usb transactions, on reset, musb driver tries to read from DEVCTL and consequently sets device as host (A-Device) instead of peripheral (B-Device), which makes it a composite device to the USB gadget driver. This induces a kernel panic during power down where the USB gadget driver does a null pointer dereference when trying to access the composite device configuration. On reset, do not rely on DEVCTL value for setting gadget peripheral mode. Use is_otg flag instead to set it to B-Device. Signed-off-by: Apelete Seketeli Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index c410a7f..d4aa779 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -2119,7 +2119,15 @@ __acquires(musb->lock) /* Normal reset, as B-Device; * or else after HNP, as A-Device */ - if (devctl & MUSB_DEVCTL_BDEVICE) { + if (!musb->g.is_otg) { + /* USB device controllers that are not OTG compatible + * may not have DEVCTL register in silicon. + * In that case, do not rely on devctl for setting + * peripheral mode. + */ + musb->xceiv->state = OTG_STATE_B_PERIPHERAL; + musb->g.is_a_peripheral = 0; + } else if (devctl & MUSB_DEVCTL_BDEVICE) { musb->xceiv->state = OTG_STATE_B_PERIPHERAL; musb->g.is_a_peripheral = 0; } else { -- cgit v0.10.2 From bee53637e5836a7cc642ca036e44bd77caf7bc35 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 19 Dec 2013 15:41:41 -0800 Subject: USB: c67x00: remove CONFIG_USB_DEBUG dependancy This removes the usage of CONFIG_USB_DEBUG in the c67x00 driver. There was only one place, where the TD was dumped to the kernel log, and that was using the dynamic debug infrastructure already, with the exception of the call to print_hex_dump(). So move everything to the dynamic debug infrastructure, including one odd printk(KERN_DEBUG...) line that looks like it was forgotten about a long time ago. Acked-by: Peter Korsgaard Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/c67x00/Makefile b/drivers/usb/c67x00/Makefile index b121868..da5f314 100644 --- a/drivers/usb/c67x00/Makefile +++ b/drivers/usb/c67x00/Makefile @@ -2,8 +2,6 @@ # Makefile for Cypress C67X00 USB Controller # -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o c67x00-y := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c index 892cc96..c379d20 100644 --- a/drivers/usb/c67x00/c67x00-sched.c +++ b/drivers/usb/c67x00/c67x00-sched.c @@ -144,8 +144,6 @@ struct c67x00_urb_priv { /* -------------------------------------------------------------------------- */ -#ifdef DEBUG - /** * dbg_td - Dump the contents of the TD */ @@ -166,16 +164,8 @@ static void dbg_td(struct c67x00_hcd *c67x00, struct c67x00_td *td, char *msg) dev_dbg(dev, "retry_cnt: 0x%02x\n", td->retry_cnt); dev_dbg(dev, "residue: 0x%02x\n", td->residue); dev_dbg(dev, "next_td_addr: 0x%04x\n", td_next_td_addr(td)); - dev_dbg(dev, "data:"); - print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 1, - td->data, td_length(td), 1); + dev_dbg(dev, "data: %*ph\n", td_length(td), td->data); } -#else /* DEBUG */ - -static inline void -dbg_td(struct c67x00_hcd *c67x00, struct c67x00_td *td, char *msg) { } - -#endif /* DEBUG */ /* -------------------------------------------------------------------------- */ /* Helper functions */ @@ -780,7 +770,8 @@ static int c67x00_add_iso_urb(struct c67x00_hcd *c67x00, struct urb *urb) ret = c67x00_create_td(c67x00, urb, td_buf, len, pid, 0, urbp->cnt); if (ret) { - printk(KERN_DEBUG "create failed: %d\n", ret); + dev_dbg(c67x00_hcd_dev(c67x00), "create failed: %d\n", + ret); urb->iso_frame_desc[urbp->cnt].actual_length = 0; urb->iso_frame_desc[urbp->cnt].status = ret; if (urbp->cnt + 1 == urb->number_of_packets) -- cgit v0.10.2 From 8dd5cd5395b90070d98149d0a94e5981a74cd2ec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Fri, 20 Dec 2013 14:07:24 +0100 Subject: usb: cdc-wdm: avoid hanging on zero length reads MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 73e06865ead1 ("USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications") implemented queued response handling. This added a new requirement: The read urb must be resubmitted every time we clear the WDM_READ flag if the response counter indicates that the device is waiting for a read. Fix by factoring out the code handling the WMD_READ clearing and possible urb submission, calling it everywhere we clear the flag. Without this fix, the driver ends up in a state where the read urb is inactive, but the response counter is positive after a zero length read. This prevents the read urb from ever being submitted again and the driver appears to be hanging. Fixes: 73e06865ead1 ("USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications") Cc: Greg Suarez Signed-off-by: Bjørn Mork Cc: stable # 3.13 Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 4d38759..750afa9 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -432,6 +432,38 @@ outnl: return rv < 0 ? rv : count; } +/* + * clear WDM_READ flag and possibly submit the read urb if resp_count + * is non-zero. + * + * Called with desc->iuspin locked + */ +static int clear_wdm_read_flag(struct wdm_device *desc) +{ + int rv = 0; + + clear_bit(WDM_READ, &desc->flags); + + /* submit read urb only if the device is waiting for it */ + if (!--desc->resp_count) + goto out; + + set_bit(WDM_RESPONDING, &desc->flags); + spin_unlock_irq(&desc->iuspin); + rv = usb_submit_urb(desc->response, GFP_KERNEL); + spin_lock_irq(&desc->iuspin); + if (rv) { + dev_err(&desc->intf->dev, + "usb_submit_urb failed with result %d\n", rv); + + /* make sure the next notification trigger a submit */ + clear_bit(WDM_RESPONDING, &desc->flags); + desc->resp_count = 0; + } +out: + return rv; +} + static ssize_t wdm_read (struct file *file, char __user *buffer, size_t count, loff_t *ppos) { @@ -503,8 +535,10 @@ retry: if (!desc->reslength) { /* zero length read */ dev_dbg(&desc->intf->dev, "%s: zero length - clearing WDM_READ\n", __func__); - clear_bit(WDM_READ, &desc->flags); + rv = clear_wdm_read_flag(desc); spin_unlock_irq(&desc->iuspin); + if (rv < 0) + goto err; goto retry; } cntr = desc->length; @@ -526,37 +560,9 @@ retry: desc->length -= cntr; /* in case we had outstanding data */ - if (!desc->length) { - clear_bit(WDM_READ, &desc->flags); - - if (--desc->resp_count) { - set_bit(WDM_RESPONDING, &desc->flags); - spin_unlock_irq(&desc->iuspin); - - rv = usb_submit_urb(desc->response, GFP_KERNEL); - if (rv) { - dev_err(&desc->intf->dev, - "%s: usb_submit_urb failed with result %d\n", - __func__, rv); - spin_lock_irq(&desc->iuspin); - clear_bit(WDM_RESPONDING, &desc->flags); - spin_unlock_irq(&desc->iuspin); - - if (rv == -ENOMEM) { - rv = schedule_work(&desc->rxwork); - if (rv) - dev_err(&desc->intf->dev, "Cannot schedule work\n"); - } else { - spin_lock_irq(&desc->iuspin); - desc->resp_count = 0; - spin_unlock_irq(&desc->iuspin); - } - } - } else - spin_unlock_irq(&desc->iuspin); - } else - spin_unlock_irq(&desc->iuspin); - + if (!desc->length) + clear_wdm_read_flag(desc); + spin_unlock_irq(&desc->iuspin); rv = cntr; err: -- cgit v0.10.2 From b4a9dfb02d932acd8a55ee96575e90f999a482de Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Fri, 20 Dec 2013 11:45:02 -0600 Subject: usb: wusbcore: add debug prints to reservation and channel change This patch adds debug prints to the reservation and channel change sequence to help with debugging channel change problems. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/pal.c b/drivers/usb/wusbcore/pal.c index 59e100c..090f273 100644 --- a/drivers/usb/wusbcore/pal.c +++ b/drivers/usb/wusbcore/pal.c @@ -22,6 +22,7 @@ static void wusbhc_channel_changed(struct uwb_pal *pal, int channel) { struct wusbhc *wusbhc = container_of(pal, struct wusbhc, pal); + dev_dbg(wusbhc->dev, "%s: channel = %d\n", __func__, channel); if (channel < 0) wusbhc_stop(wusbhc); else diff --git a/drivers/usb/wusbcore/reservation.c b/drivers/usb/wusbcore/reservation.c index ead79f7..d5efd0f 100644 --- a/drivers/usb/wusbcore/reservation.c +++ b/drivers/usb/wusbcore/reservation.c @@ -51,6 +51,7 @@ static void wusbhc_rsv_complete_cb(struct uwb_rsv *rsv) struct uwb_mas_bm mas; char buf[72]; + dev_dbg(dev, "%s: state = %d\n", __func__, rsv->state); switch (rsv->state) { case UWB_RSV_STATE_O_ESTABLISHED: uwb_rsv_get_usable_mas(rsv, &mas); -- cgit v0.10.2 From f79833a7ab44fd7ce4db47c65c929747463a452d Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Fri, 20 Dec 2013 11:54:07 -0600 Subject: uwb: add debug prints during channel change and beacon actions Add debug prints during channel change and beacon actions. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/beacon.c b/drivers/uwb/beacon.c index dcdd59b..7b76361 100644 --- a/drivers/uwb/beacon.c +++ b/drivers/uwb/beacon.c @@ -117,6 +117,7 @@ int uwb_rc_beacon(struct uwb_rc *rc, int channel, unsigned bpst_offset) int result; struct device *dev = &rc->uwb_dev.dev; + dev_dbg(dev, "%s: channel = %d\n", __func__, channel); if (channel < 0) channel = -1; if (channel == -1) @@ -517,7 +518,7 @@ int uwbd_evt_handle_rc_bp_slot_change(struct uwb_event *evt) mutex_lock(&rc->uwb_dev.mutex); if (uwb_rc_evt_bp_slot_change_no_slot(bpsc)) { - dev_info(dev, "stopped beaconing: No free slots in BP\n"); + dev_err(dev, "stopped beaconing: No free slots in BP\n"); rc->beaconing = -1; } else rc->uwb_dev.beacon_slot = uwb_rc_evt_bp_slot_change_slot_num(bpsc); diff --git a/drivers/uwb/radio.c b/drivers/uwb/radio.c index d58dfec..10adb98 100644 --- a/drivers/uwb/radio.c +++ b/drivers/uwb/radio.c @@ -62,6 +62,10 @@ static void uwb_radio_channel_changed(struct uwb_rc *rc, int channel) static int uwb_radio_change_channel(struct uwb_rc *rc, int channel) { int ret = 0; + struct device *dev = &rc->uwb_dev.dev; + + dev_dbg(dev, "%s: channel = %d, rc->beaconing = %d\n", __func__, + channel, rc->beaconing); if (channel == -1) uwb_radio_channel_changed(rc, channel); -- cgit v0.10.2 From 67d0fb2592acdd7cc41129279de2e520d53d68f0 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Fri, 20 Dec 2013 11:54:08 -0600 Subject: uwb: whitespace and comment cleanups various whitespace and comment cleanups Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/beacon.c b/drivers/uwb/beacon.c index 7b76361..4190f29 100644 --- a/drivers/uwb/beacon.c +++ b/drivers/uwb/beacon.c @@ -185,7 +185,7 @@ out: /* Find a beacon by dev addr in the cache */ static -struct uwb_beca_e *__uwb_beca_find_bymac(struct uwb_rc *rc, +struct uwb_beca_e *__uwb_beca_find_bymac(struct uwb_rc *rc, const struct uwb_mac_addr *mac_addr) { struct uwb_beca_e *bce, *next; diff --git a/drivers/uwb/radio.c b/drivers/uwb/radio.c index 10adb98..fd23d98 100644 --- a/drivers/uwb/radio.c +++ b/drivers/uwb/radio.c @@ -93,7 +93,7 @@ static int uwb_radio_change_channel(struct uwb_rc *rc, int channel) * uwb_radio_start - request that the radio be started * @pal: the PAL making the request. * - * If the radio is not already active, aa suitable channel is selected + * If the radio is not already active, a suitable channel is selected * and beacons are started. */ int uwb_radio_start(struct uwb_pal *pal) diff --git a/drivers/uwb/rsv.c b/drivers/uwb/rsv.c index 738e8a8..4e7e4bf 100644 --- a/drivers/uwb/rsv.c +++ b/drivers/uwb/rsv.c @@ -237,7 +237,7 @@ void uwb_rsv_backoff_win_increment(struct uwb_rc *rc) /* reset the timer associated variables */ timeout_us = bow->n * UWB_SUPERFRAME_LENGTH_US; bow->total_expired = 0; - mod_timer(&bow->timer, jiffies + usecs_to_jiffies(timeout_us)); + mod_timer(&bow->timer, jiffies + usecs_to_jiffies(timeout_us)); } static void uwb_rsv_stroke_timer(struct uwb_rsv *rsv) @@ -257,7 +257,7 @@ static void uwb_rsv_stroke_timer(struct uwb_rsv *rsv) sframes = 1; if (rsv->state == UWB_RSV_STATE_O_ESTABLISHED) sframes = 0; - + } if (sframes > 0) { @@ -611,7 +611,7 @@ int uwb_rsv_try_move(struct uwb_rsv *rsv, struct uwb_mas_bm *available) struct device *dev = &rc->uwb_dev.dev; struct uwb_rsv_move *mv; int ret = 0; - + if (bow->can_reserve_extra_mases == false) return -EBUSY; @@ -628,7 +628,7 @@ int uwb_rsv_try_move(struct uwb_rsv *rsv, struct uwb_mas_bm *available) } else { dev_dbg(dev, "new allocation not found\n"); } - + return ret; } @@ -640,7 +640,7 @@ void uwb_rsv_handle_drp_avail_change(struct uwb_rc *rc) struct uwb_drp_backoff_win *bow = &rc->bow; struct uwb_rsv *rsv; struct uwb_mas_bm mas; - + if (bow->can_reserve_extra_mases == false) return; @@ -652,7 +652,7 @@ void uwb_rsv_handle_drp_avail_change(struct uwb_rc *rc) uwb_rsv_try_move(rsv, &mas); } } - + } /** @@ -916,7 +916,7 @@ static void uwb_rsv_alien_bp_work(struct work_struct *work) struct uwb_rsv *rsv; mutex_lock(&rc->rsvs_mutex); - + list_for_each_entry(rsv, &rc->reservations, rc_node) { if (rsv->type != UWB_DRP_TYPE_ALIEN_BP) { rsv->callback(rsv); -- cgit v0.10.2 From bf359dff2346d490dbbbe0fcc4aa674625803da5 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Fri, 20 Dec 2013 11:54:09 -0600 Subject: uwb: use uwb_rsv_callback instead of calling rsv->callback directly Use uwb_rsv_callback wrapper instead of calling rsv->callback directly. uwb_rsv_callback checks for NULL and is used by other callers of the callback routine. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/rsv.c b/drivers/uwb/rsv.c index 4e7e4bf..3fe6119 100644 --- a/drivers/uwb/rsv.c +++ b/drivers/uwb/rsv.c @@ -919,7 +919,7 @@ static void uwb_rsv_alien_bp_work(struct work_struct *work) list_for_each_entry(rsv, &rc->reservations, rc_node) { if (rsv->type != UWB_DRP_TYPE_ALIEN_BP) { - rsv->callback(rsv); + uwb_rsv_callback(rsv); } } -- cgit v0.10.2 From 1fc671b3be8f671482871d9a0b577b6d96914e8e Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Fri, 20 Dec 2013 13:01:03 -0600 Subject: uwb: move mutex_lock to error case in uwbd_evt_handle_rc_bp_slot_change Only acquire rc->uwb_dev.mutex in the error case in uwbd_evt_handle_rc_bp_slot_change. This fixes a bug where establishing a reservation on a new channel will fail if we were unable to establish a reservation on the previous channel due to DRP conflict. If rc->uwb_dev.mutex is acquired in the non-error case when the uwb system is attempting to start beaconing, it will block because the start beaconing code is holding this mutex. This prevents any other notifications from the URC from being processed. In particular, the DRP_AVAILABILITY notification will not be processed during the start beaconing process which can result in a failure to establish a reservation. It is safe to not hold the mutex in the non-error case since the only other place rc->uwb_dev.beacon_slot is accessed is in the same worker thread that uwbd_evt_handle_rc_bp_slot_change executes in. Signed-off-by: Thomas Pugliese Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/uwb/beacon.c b/drivers/uwb/beacon.c index 4190f29..57b5ff6 100644 --- a/drivers/uwb/beacon.c +++ b/drivers/uwb/beacon.c @@ -516,13 +516,13 @@ int uwbd_evt_handle_rc_bp_slot_change(struct uwb_event *evt) } bpsc = container_of(evt->notif.rceb, struct uwb_rc_evt_bp_slot_change, rceb); - mutex_lock(&rc->uwb_dev.mutex); if (uwb_rc_evt_bp_slot_change_no_slot(bpsc)) { dev_err(dev, "stopped beaconing: No free slots in BP\n"); + mutex_lock(&rc->uwb_dev.mutex); rc->beaconing = -1; + mutex_unlock(&rc->uwb_dev.mutex); } else rc->uwb_dev.beacon_slot = uwb_rc_evt_bp_slot_change_slot_num(bpsc); - mutex_unlock(&rc->uwb_dev.mutex); return 0; } -- cgit v0.10.2 From 515610011edbec518e26b8222a16886cb66a4946 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 20 Dec 2013 15:04:09 -0600 Subject: usb: phy: am335x: fix randconfig errors by using SET_SYSTEM_SLEEP_PM_OPS, we will make sure that we don't use undefined functions. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c index e8088fa..12fc346 100644 --- a/drivers/usb/phy/phy-am335x.c +++ b/drivers/usb/phy/phy-am335x.c @@ -122,17 +122,16 @@ static int am335x_phy_resume(struct device *dev) return 0; } + +static const struct dev_pm_ops am335x_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(am335x_phy_suspend, am335x_phy_resume) +}; + #define DEV_PM_OPS (&am335x_pm_ops) #else #define DEV_PM_OPS NULL #endif - -static const struct dev_pm_ops am335x_pm_ops = { - .suspend = am335x_phy_suspend, - .resume = am335x_phy_resume, -}; - static const struct of_device_id am335x_phy_ids[] = { { .compatible = "ti,am335x-usb-phy" }, { } -- cgit v0.10.2 From 071f58b361ef8651e84bb55f7ea5892a77945e5b Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Fri, 20 Dec 2013 10:47:14 +0100 Subject: usb: musb: fix prototype for musb_port_reset musb_port_reset() takes a 2nd arguments. This didn't hit us yet because this function was never called externally prior to the musb_hub_control cleanup patch. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 909ba49..7bbf01b 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -125,7 +125,7 @@ static inline void musb_host_resume_root_hub(struct musb *musb) {} static inline void musb_host_poll_rh_status(struct musb *musb) {} static inline void musb_host_poke_root_hub(struct musb *musb) {} static inline void musb_port_suspend(struct musb *musb, bool do_suspend) {} -static inline void musb_port_reset(struct musb *musb) {} +static inline void musb_port_reset(struct musb *musb, bool do_reset) {} static inline void musb_host_finish_resume(struct work_struct *work) {} #endif -- cgit v0.10.2 From fa6997d3a58ba9732870a20364bccb501b641ba9 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Fri, 20 Dec 2013 10:47:15 +0100 Subject: usb: musb: fix musb pointer acqusition in musb_host_finish_resume This is a fall-out from "usb: musb: finish suspend/reset work independently from musb_hub_control()" that I missed because the MUSB_POWER register does not have the MUSB_POWER_SUSPENDM bit set on AM335x platforms; hence the code path was not travelled in my tests. Signed-off-by: Daniel Mack Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index ad417fd..966cf95 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -50,7 +50,7 @@ void musb_host_finish_resume(struct work_struct *work) unsigned long flags; u8 power; - musb = container_of(work, struct musb, deassert_reset_work.work); + musb = container_of(work, struct musb, finish_resume_work.work); spin_lock_irqsave(&musb->lock, flags); -- cgit v0.10.2 From 16da4b174b08c42076cd3384c420f352c909d467 Mon Sep 17 00:00:00 2001 From: Anton Tikhomirov Date: Fri, 20 Dec 2013 19:06:24 +0900 Subject: usb: phy: Fix double lock in OTG FSM Mutex obtained at the beginning of the function should be released at the end to avoid double locking. Signed-off-by: Anton Tikhomirov Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index 6223872..65c3a72 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -357,7 +357,7 @@ int otg_statemachine(struct otg_fsm *fsm) default: break; } - mutex_lock(&fsm->lock); + mutex_unlock(&fsm->lock); VDBG("quit statemachine, changed = %d\n", state_changed); return state_changed; -- cgit v0.10.2 From 0c8b1992b4a180704a887b3c9128aa103b5ef60f Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 19 Dec 2013 15:43:10 -0800 Subject: USB: gadget: fix up some comments about CONFIG_USB_DEBUG These two gadget drivers said that their #endif was for CONFIG_USB_DEBUG, but they really were not, so fix them up to be correct. Cc: Felipe Balbi Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c index 7bfa134..a252444 100644 --- a/drivers/usb/gadget/acm_ms.c +++ b/drivers/usb/gadget/acm_ms.c @@ -107,7 +107,7 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; */ #define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS -#endif /* CONFIG_USB_DEBUG */ +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index 4fdaa54..940f6cd 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -134,7 +134,7 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; */ #define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS -#endif /* CONFIG_USB_DEBUG */ +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); -- cgit v0.10.2 From 3482528e9aced9234d4e2a4a9538c882a9aa5aa2 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 19 Dec 2013 15:42:20 -0800 Subject: USB: core: remove CONFIG_USB_DEBUG usage CONFIG_USB_DEBUG is going away, so remove the few places in the USB core that relied on them. This means that we always now do the "debug" checks for every urb submitted, which is a good idea, as who knows how many driver bugs we have been ignoring when people forget to enable this option. Also, with the overall speed of USB, doing these extra checks should not cause any additional overhead. Also, no longer announce all devices being added to the system if CONFIG_USB_DEBUG is enabled, as it's not going to be around much longer. Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index 5e847ad..2f6f932 100644 --- a/drivers/usb/core/Makefile +++ b/drivers/usb/core/Makefile @@ -2,8 +2,6 @@ # Makefile for USB Core files and filesystem # -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG - usbcore-y := usb.o hub.o hcd.o urb.o message.o driver.o usbcore-y += config.o file.o buffer.o sysfs.o endpoint.o usbcore-y += devio.o notify.o generic.o quirks.o devices.o diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 162e94d..92e052d 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -33,13 +33,6 @@ #include "hub.h" -/* if we are in debug mode, always announce new devices */ -#ifdef DEBUG -#ifndef CONFIG_USB_ANNOUNCE_NEW_DEVICES -#define CONFIG_USB_ANNOUNCE_NEW_DEVICES -#endif -#endif - #define USB_VENDOR_GENESYS_LOGIC 0x05e3 #define HUB_QUIRK_CHECK_PORT_AUTOSUSPEND 0x01 diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 07c58af..f4cb7fc 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -325,10 +325,14 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb); */ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) { + static int pipetypes[4] = { + PIPE_CONTROL, PIPE_ISOCHRONOUS, PIPE_BULK, PIPE_INTERRUPT + }; int xfertype, max; struct usb_device *dev; struct usb_host_endpoint *ep; int is_out; + unsigned int allowed; if (!urb || !urb->complete) return -EINVAL; @@ -436,15 +440,10 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) if (urb->transfer_buffer_length > INT_MAX) return -EMSGSIZE; -#ifdef DEBUG - /* stuff that drivers shouldn't do, but which shouldn't + /* + * stuff that drivers shouldn't do, but which shouldn't * cause problems in HCDs if they get it wrong. */ - { - unsigned int allowed; - static int pipetypes[4] = { - PIPE_CONTROL, PIPE_ISOCHRONOUS, PIPE_BULK, PIPE_INTERRUPT - }; /* Check that the pipe's type matches the endpoint's type */ if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) @@ -476,8 +475,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) if (allowed != urb->transfer_flags) dev_WARN(&dev->dev, "BOGUS urb flags, %x --> %x\n", urb->transfer_flags, allowed); - } -#endif + /* * Force periodic transfer intervals to be legal values that are * a power of two (so HCDs don't need to). -- cgit v0.10.2 From ed40082da0a0bfbcab979952d1b6d122cb5fb67b Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sat, 21 Dec 2013 15:20:07 +0530 Subject: usb: phy-keystone: Remove redundant of_match_ptr helper 'keystone_usbphy_ids' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat Cc: WingMan Kwok Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c index 533db12..ee1d03b 100644 --- a/drivers/usb/phy/phy-keystone.c +++ b/drivers/usb/phy/phy-keystone.c @@ -129,7 +129,7 @@ static struct platform_driver keystone_usbphy_driver = { .driver = { .name = "keystone-usbphy", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(keystone_usbphy_ids), + .of_match_table = keystone_usbphy_ids, }, }; -- cgit v0.10.2 From 7410f172aeceedd8b3bca6f461d798fc160598e9 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sat, 21 Dec 2013 15:20:08 +0530 Subject: usb: phy-fsm: Staticize local symbols Local symbols appearing only in this file are made static. Signed-off-by: Sachin Kamat Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index 65c3a72..7aa314e 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -64,7 +64,7 @@ static int otg_set_protocol(struct otg_fsm *fsm, int protocol) static int state_changed; /* Called when leaving a state. Do state clean up jobs here */ -void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) +static void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) { switch (old_state) { case OTG_STATE_B_IDLE: @@ -121,7 +121,7 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) } /* Called when entering a state */ -int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) +static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) { state_changed = 1; if (fsm->otg->phy->state == new_state) -- cgit v0.10.2 From 2ee8ff30849def5ac0d942439bf533826ad8e4ba Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sat, 21 Dec 2013 15:20:09 +0530 Subject: usb: phy-twl6030: Add missing braces Silences the below warning: WARNING: sizeof *twl should be sizeof(*twl) Signed-off-by: Sachin Kamat Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index 30e8a61..d2682ba 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -327,7 +327,7 @@ static int twl6030_usb_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct twl4030_usb_data *pdata = dev_get_platdata(dev); - twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL); + twl = devm_kzalloc(dev, sizeof(*twl), GFP_KERNEL); if (!twl) return -ENOMEM; -- cgit v0.10.2 From 80f46d5dcb0af46f325c897392baef4911f401b7 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sat, 21 Dec 2013 20:37:36 +0200 Subject: usb: phy: tahvo: fix smatch warnings phy-tahvo introduced the following smatch warnings: drivers/usb/phy/phy-tahvo.c:203 tahvo_usb_set_host() warn: variable dereferenced before check 'otg' (see line 199) drivers/usb/phy/phy-tahvo.c:235 tahvo_usb_set_peripheral() warn: variable dereferenced before check 'otg' (see line 231) Fix by deleting bogus NULL pointer checks. The USB framework will always call us with a valid OTG pointer. Reported-by: Dan Carpenter Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c index 8bb833e..cc61ee4 100644 --- a/drivers/usb/phy/phy-tahvo.c +++ b/drivers/usb/phy/phy-tahvo.c @@ -200,9 +200,6 @@ static int tahvo_usb_set_host(struct usb_otg *otg, struct usb_bus *host) dev_dbg(&tu->pt_dev->dev, "%s %p\n", __func__, host); - if (otg == NULL) - return -ENODEV; - mutex_lock(&tu->serialize); if (host == NULL) { @@ -232,9 +229,6 @@ static int tahvo_usb_set_peripheral(struct usb_otg *otg, dev_dbg(&tu->pt_dev->dev, "%s %p\n", __func__, gadget); - if (!otg) - return -ENODEV; - mutex_lock(&tu->serialize); if (!gadget) { -- cgit v0.10.2 From 8b42a746e8703c271df3e7f1f5bf5f8f59773d23 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sat, 21 Dec 2013 20:37:37 +0200 Subject: usb: phy: isp1301-omap: fix smatch warnings phy-isp1301-omap produces the following smatch warnings: drivers/usb/phy/phy-isp1301-omap.c:1280 isp1301_set_host() warn: variable dereferenced before check 'otg' (see line 1278) drivers/usb/phy/phy-isp1301-omap.c:1336 isp1301_set_peripheral() warn: variable dereferenced before check 'otg' (see line 1334) drivers/usb/phy/phy-isp1301-omap.c:1417 isp1301_start_srp() warn: variable dereferenced before check 'otg' (see line 1414) drivers/usb/phy/phy-isp1301-omap.c:1445 isp1301_start_hnp() warn: variable dereferenced before check 'otg' (see line 1442) Fix by deleting bogus NULL pointer checks. The USB framework will always call us with a valid OTG pointer. Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c index d3a5160..6e146d7 100644 --- a/drivers/usb/phy/phy-isp1301-omap.c +++ b/drivers/usb/phy/phy-isp1301-omap.c @@ -1277,7 +1277,7 @@ isp1301_set_host(struct usb_otg *otg, struct usb_bus *host) { struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy); - if (!otg || isp != the_transceiver) + if (isp != the_transceiver) return -ENODEV; if (!host) { @@ -1333,7 +1333,7 @@ isp1301_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) { struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy); - if (!otg || isp != the_transceiver) + if (isp != the_transceiver) return -ENODEV; if (!gadget) { @@ -1414,8 +1414,7 @@ isp1301_start_srp(struct usb_otg *otg) struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy); u32 otg_ctrl; - if (!otg || isp != the_transceiver - || isp->phy.state != OTG_STATE_B_IDLE) + if (isp != the_transceiver || isp->phy.state != OTG_STATE_B_IDLE) return -ENODEV; otg_ctrl = omap_readl(OTG_CTRL); @@ -1442,7 +1441,7 @@ isp1301_start_hnp(struct usb_otg *otg) struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy); u32 l; - if (!otg || isp != the_transceiver) + if (isp != the_transceiver) return -ENODEV; if (otg->default_a && (otg->host == NULL || !otg->host->b_hnp_enable)) return -ENOTCONN; -- cgit v0.10.2 From 12c8d64e29bb2cbcebe5606aab4d573b4be8606f Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Sat, 21 Dec 2013 20:37:38 +0200 Subject: usb: phy: fix some Kconfig descriptions Some module names are not up to date in Kconfig help texts. Fix that. Signed-off-by: Aaro Koskinen Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 54bebba3..3e93836 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -46,7 +46,7 @@ config ISP1301_OMAP Instruments OMAP processors. This driver can also be built as a module. If so, the module - will be called isp1301_omap. + will be called phy-isp1301-omap. config KEYSTONE_USB_PHY tristate "Keystone USB PHY Driver" @@ -159,7 +159,7 @@ config OMAP_OTG controller is needed to switch between host and peripheral modes. This driver can also be built as a module. If so, the module - will be called omap-otg. + will be called phy-omap-otg. config TAHVO_USB tristate "Tahvo USB transceiver driver" @@ -187,7 +187,7 @@ config USB_ISP1301 and OTG drivers (to be selected separately). To compile this driver as a module, choose M here: the - module will be called isp1301. + module will be called phy-isp1301. config USB_MSM_OTG tristate "OTG support for Qualcomm on-chip USB controller" -- cgit v0.10.2 From 845c071b7853c0046693022f4e95c9cdd043e2db Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Sun, 22 Dec 2013 00:08:33 -0300 Subject: usb: musb: Rework USB and USB_GADGET dependency This USB controller can work in as host-only, gadget-only or dual-role modes. Rework the dependency on the USB and USB_GADGET configs in order to allow building the driver when !USB or !USG_GADGET. Signed-off-by: Ezequiel Garcia Signed-off-by: Felipe Balbi diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 2642b8a..a34fb98 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -94,8 +94,6 @@ source "drivers/usb/wusbcore/Kconfig" source "drivers/usb/host/Kconfig" -source "drivers/usb/musb/Kconfig" - source "drivers/usb/renesas_usbhs/Kconfig" source "drivers/usb/class/Kconfig" @@ -106,6 +104,8 @@ source "drivers/usb/image/Kconfig" endif +source "drivers/usb/musb/Kconfig" + source "drivers/usb/dwc3/Kconfig" source "drivers/usb/chipidea/Kconfig" diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 14d7e72..688dc8b 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -6,7 +6,7 @@ # (M)HDRC = (Multipoint) Highspeed Dual-Role Controller config USB_MUSB_HDRC tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)' - depends on USB_GADGET + depends on (USB || USB_GADGET) help Say Y here if your system has a dual role high speed USB controller based on the Mentor Graphics silicon IP. Then @@ -35,21 +35,21 @@ choice config USB_MUSB_HOST bool "Host only mode" - depends on USB + depends on USB=y || USB=USB_MUSB_HDRC help Select this when you want to use MUSB in host mode only, thereby the gadget feature will be regressed. config USB_MUSB_GADGET bool "Gadget only mode" - depends on USB_GADGET + depends on USB_GADGET=y || USB_GADGET=USB_MUSB_HDRC help Select this when you want to use MUSB in gadget mode only, thereby the host feature will be regressed. config USB_MUSB_DUAL_ROLE bool "Dual Role mode" - depends on (USB && USB_GADGET) + depends on ((USB=y || USB=USB_MUSB_HDRC) && (USB_GADGET=y || USB_GADGET=USB_MUSB_HDRC)) help This is the default mode of working of MUSB controller where both host and gadget features are enabled. -- cgit v0.10.2 From 8feed347d33bb630d426b9f2ed88cbdf9795f624 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:02 -0500 Subject: phy: add phy_get_bus_width()/phy_set_bus_width() calls This adds a pair of APIs that allows the generic PHY subsystem to provide information on the PHY bus width. The PHY provider driver may use phy_set_bus_width() to set the bus width that the PHY supports. The controller driver may then use phy_get_bus_width() to fetch the PHY bus width in order to properly configure the controller. Signed-off-by: Matt Porter Acked-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 6d72269..e273e5a 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -38,6 +38,14 @@ struct phy_ops { }; /** + * struct phy_attrs - represents phy attributes + * @bus_width: Data path width implemented by PHY + */ +struct phy_attrs { + u32 bus_width; +}; + +/** * struct phy - represents the phy device * @dev: phy device * @id: id of the phy device @@ -46,6 +54,7 @@ struct phy_ops { * @mutex: mutex to protect phy_ops * @init_count: used to protect when the PHY is used by multiple consumers * @power_count: used to protect when the PHY is used by multiple consumers + * @phy_attrs: used to specify PHY specific attributes */ struct phy { struct device dev; @@ -55,6 +64,7 @@ struct phy { struct mutex mutex; int init_count; int power_count; + struct phy_attrs attrs; }; /** @@ -127,6 +137,14 @@ int phy_init(struct phy *phy); int phy_exit(struct phy *phy); int phy_power_on(struct phy *phy); int phy_power_off(struct phy *phy); +static inline int phy_get_bus_width(struct phy *phy) +{ + return phy->attrs.bus_width; +} +static inline void phy_set_bus_width(struct phy *phy, int bus_width) +{ + phy->attrs.bus_width = bus_width; +} struct phy *phy_get(struct device *dev, const char *string); struct phy *devm_phy_get(struct device *dev, const char *string); void phy_put(struct phy *phy); @@ -199,6 +217,16 @@ static inline int phy_power_off(struct phy *phy) return -ENOSYS; } +static inline int phy_get_bus_width(struct phy *phy) +{ + return -ENOSYS; +} + +static inline void phy_set_bus_width(struct phy *phy, int bus_width) +{ + return; +} + static inline struct phy *phy_get(struct device *dev, const char *string) { return ERR_PTR(-ENOSYS); -- cgit v0.10.2 From 65b4eb9e351362ff8d41b873989e13a8fd35d13a Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:03 -0500 Subject: staging: dwc2: update DT binding to add generic clock/phy properties dwc2/s3c-hsotg require a single clock to be specified and optionally a generic phy. On the s3c-hsotg driver old style USB phy support is present as a fallback so the generic phy properties are optional. Signed-off-by: Matt Porter Acked-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi diff --git a/Documentation/devicetree/bindings/staging/dwc2.txt b/Documentation/devicetree/bindings/staging/dwc2.txt index 1a1b7cf..a1753ed 100644 --- a/Documentation/devicetree/bindings/staging/dwc2.txt +++ b/Documentation/devicetree/bindings/staging/dwc2.txt @@ -5,6 +5,14 @@ Required properties: - compatible : "snps,dwc2" - reg : Should contain 1 register range (address and length) - interrupts : Should contain 1 interrupt +- clocks: clock provider specifier +- clock-names: shall be "otg" +Refer to clk/clock-bindings.txt for generic clock consumer properties + +Optional properties: +- phys: phy provider specifier +- phy-names: shall be "device" +Refer to phy/phy-bindings.txt for generic phy consumer properties Example: @@ -12,4 +20,8 @@ Example: compatible = "ralink,rt3050-usb, snps,dwc2"; reg = <0x101c0000 40000>; interrupts = <18>; + clocks = <&usb_otg_ahb_clk>; + clock-names = "otg"; + phys = <&usbphy>; + phy-names = "usb2-phy"; }; -- cgit v0.10.2 From 29026e09e3d7d4eae19f754772590fdaf9ef8c9d Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:04 -0500 Subject: usb: gadget: s3c-hsotg: enable build for other platforms Remove unused Samsung-specific machine include and Kconfig dependency on S3C. Signed-off-by: Matt Porter Reviewed-by: Markus Mayer Reviewed-by: Tim Kryger Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index ef5075e..fbc5607 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -294,11 +294,11 @@ config USB_PXA27X gadget drivers to also be dynamically linked. config USB_S3C_HSOTG - tristate "S3C HS/OtG USB Device controller" - depends on S3C_DEV_USB_HSOTG + depends on ARM + tristate "Designware/S3C HS/OtG USB Device controller" help - The Samsung S3C64XX USB2.0 high-speed gadget controller - integrated into the S3C64XX series SoC. + The Designware USB2.0 high-speed gadget controller + integrated into many SoCs. config USB_S3C2410 tristate "S3C2410 USB Device Controller" diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 83bacf4..8917ec3 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -36,8 +36,6 @@ #include #include -#include - #include "s3c-hsotg.h" static const char * const s3c_hsotg_supply_names[] = { -- cgit v0.10.2 From 0d33d825632737c8d3353c80c8701252682bcb03 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:05 -0500 Subject: usb: gadget: s3c-hsotg: add snps,dwc2 compatible string Enable support for the dwc2 binding. Signed-off-by: Matt Porter Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 8917ec3..50b57b2 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -3734,6 +3734,7 @@ static int s3c_hsotg_remove(struct platform_device *pdev) #ifdef CONFIG_OF static const struct of_device_id s3c_hsotg_of_ids[] = { { .compatible = "samsung,s3c6400-hsotg", }, + { .compatible = "snps,dwc2", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, s3c_hsotg_of_ids); -- cgit v0.10.2 From 74084844e8e7d5424e8b512b0ee6d46c72087b56 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:06 -0500 Subject: usb: gadget: s3c-hsotg: enable generic phy support Adds support for the generic PHY subsystem. Generic PHY support is probed and then the driver falls back to checking for an old style USB PHY and pdata if not found. Signed-off-by: Matt Porter Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 50b57b2..f39daf7 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -30,6 +30,8 @@ #include #include #include +#include +#include #include #include @@ -138,6 +140,7 @@ struct s3c_hsotg_ep { * @dev: The parent device supplied to the probe function * @driver: USB gadget driver * @phy: The otg phy transceiver structure for phy control. + * @uphy: The otg phy transceiver structure for old USB phy control. * @plat: The platform specific configuration data. This can be removed once * all SoCs support usb transceiver. * @regs: The memory area mapped for accessing registers. @@ -159,7 +162,8 @@ struct s3c_hsotg_ep { struct s3c_hsotg { struct device *dev; struct usb_gadget_driver *driver; - struct usb_phy *phy; + struct phy *phy; + struct usb_phy *uphy; struct s3c_hsotg_plat *plat; spinlock_t lock; @@ -2909,8 +2913,11 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg) dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev); - if (hsotg->phy) - usb_phy_init(hsotg->phy); + if (hsotg->phy) { + phy_init(hsotg->phy); + phy_power_on(hsotg->phy); + } else if (hsotg->uphy) + usb_phy_init(hsotg->uphy); else if (hsotg->plat->phy_init) hsotg->plat->phy_init(pdev, hsotg->plat->phy_type); } @@ -2926,8 +2933,11 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg) { struct platform_device *pdev = to_platform_device(hsotg->dev); - if (hsotg->phy) - usb_phy_shutdown(hsotg->phy); + if (hsotg->phy) { + phy_power_off(hsotg->phy); + phy_exit(hsotg->phy); + } else if (hsotg->uphy) + usb_phy_shutdown(hsotg->uphy); else if (hsotg->plat->phy_exit) hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type); } @@ -3534,7 +3544,8 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg) static int s3c_hsotg_probe(struct platform_device *pdev) { struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev); - struct usb_phy *phy; + struct phy *phy; + struct usb_phy *uphy; struct device *dev = &pdev->dev; struct s3c_hsotg_ep *eps; struct s3c_hsotg *hsotg; @@ -3549,19 +3560,26 @@ static int s3c_hsotg_probe(struct platform_device *pdev) return -ENOMEM; } - phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + /* + * Attempt to find a generic PHY, then look for an old style + * USB PHY, finally fall back to pdata + */ + phy = devm_phy_get(&pdev->dev, "usb2-phy"); if (IS_ERR(phy)) { - /* Fallback for pdata */ - plat = dev_get_platdata(&pdev->dev); - if (!plat) { - dev_err(&pdev->dev, "no platform data or transceiver defined\n"); - return -EPROBE_DEFER; - } else { + uphy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + if (IS_ERR(uphy)) { + /* Fallback for pdata */ + plat = dev_get_platdata(&pdev->dev); + if (!plat) { + dev_err(&pdev->dev, + "no platform data or transceiver defined\n"); + return -EPROBE_DEFER; + } hsotg->plat = plat; - } - } else { + } else + hsotg->uphy = uphy; + } else hsotg->phy = phy; - } hsotg->dev = dev; @@ -3628,6 +3646,9 @@ static int s3c_hsotg_probe(struct platform_device *pdev) goto err_supplies; } + if (hsotg->phy) + phy_init(hsotg->phy); + /* usb phy enable */ s3c_hsotg_phy_enable(hsotg); @@ -3721,6 +3742,8 @@ static int s3c_hsotg_remove(struct platform_device *pdev) } s3c_hsotg_phy_disable(hsotg); + if (hsotg->phy) + phy_exit(hsotg->phy); clk_disable_unprepare(hsotg->clk); return 0; -- cgit v0.10.2 From f7e504c72d93d3257969cb1ca9b93116e7dac8b5 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:07 -0500 Subject: usb: gadget: s3c-hsotg: get phy bus width from phy subsystem Adds support for querying the phy bus width from the generic phy subsystem. Configure UTMI bus width in GUSBCFG based on this value. Signed-off-by: Matt Porter Acked-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index f39daf7..c0ff1cb 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -146,6 +146,7 @@ struct s3c_hsotg_ep { * @regs: The memory area mapped for accessing registers. * @irq: The IRQ number we are using * @supplies: Definition of USB power supplies + * @phyif: PHY interface width * @dedicated_fifos: Set if the hardware has dedicated IN-EP fifos. * @num_of_eps: Number of available EPs (excluding EP0) * @debug_root: root directrory for debugfs. @@ -174,6 +175,7 @@ struct s3c_hsotg { struct regulator_bulk_data supplies[ARRAY_SIZE(s3c_hsotg_supply_names)]; + u32 phyif; unsigned int dedicated_fifos:1; unsigned char num_of_eps; @@ -2288,7 +2290,7 @@ static void s3c_hsotg_core_init(struct s3c_hsotg *hsotg) */ /* set the PLL on, remove the HNP/SRP and set the PHY */ - writel(GUSBCFG_PHYIf16 | GUSBCFG_TOutCal(7) | + writel(hsotg->phyif | GUSBCFG_TOutCal(7) | (0x5 << 10), hsotg->regs + GUSBCFG); s3c_hsotg_init_fifo(hsotg); @@ -3646,6 +3648,16 @@ static int s3c_hsotg_probe(struct platform_device *pdev) goto err_supplies; } + /* Set default UTMI width */ + hsotg->phyif = GUSBCFG_PHYIf16; + + /* + * If using the generic PHY framework, check if the PHY bus + * width is 8-bit and set the phyif appropriately. + */ + if (hsotg->phy && (phy_get_bus_width(phy) == 8)) + hsotg->phyif = GUSBCFG_PHYIf8; + if (hsotg->phy) phy_init(hsotg->phy); diff --git a/drivers/usb/gadget/s3c-hsotg.h b/drivers/usb/gadget/s3c-hsotg.h index d650b12..85f549f 100644 --- a/drivers/usb/gadget/s3c-hsotg.h +++ b/drivers/usb/gadget/s3c-hsotg.h @@ -55,6 +55,7 @@ #define GUSBCFG_HNPCap (1 << 9) #define GUSBCFG_SRPCap (1 << 8) #define GUSBCFG_PHYIf16 (1 << 3) +#define GUSBCFG_PHYIf8 (0 << 3) #define GUSBCFG_TOutCal_MASK (0x7 << 0) #define GUSBCFG_TOutCal_SHIFT (0) #define GUSBCFG_TOutCal_LIMIT (0x7) -- cgit v0.10.2 From 26799f1d23d07c2c4db2ccdba43c0e61baeaebee Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:08 -0500 Subject: phy: add Broadcom Kona USB2 PHY DT binding Add a binding that describes the Broadcom Kona USB2 PHY found on the BCM281xx family of SoCs. Signed-off-by: Matt Porter Acked-by: Kishon Vijay Abraham I Signed-off-by: Felipe Balbi diff --git a/Documentation/devicetree/bindings/phy/bcm-phy.txt b/Documentation/devicetree/bindings/phy/bcm-phy.txt new file mode 100644 index 0000000..3dc8b3d --- /dev/null +++ b/Documentation/devicetree/bindings/phy/bcm-phy.txt @@ -0,0 +1,15 @@ +BROADCOM KONA USB2 PHY + +Required properties: + - compatible: brcm,kona-usb2-phy + - reg: offset and length of the PHY registers + - #phy-cells: must be 0 +Refer to phy/phy-bindings.txt for the generic PHY binding properties + +Example: + + usbphy: usb-phy@3f130000 { + compatible = "brcm,kona-usb2-phy"; + reg = <0x3f130000 0x28>; + #phy-cells = <0>; + }; -- cgit v0.10.2 From 7597fdfca983025a3de91d4b3cf7b21ba452003c Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Thu, 19 Dec 2013 09:23:09 -0500 Subject: phy: add Broadcom Kona USB2 PHY driver Add a driver for the internal Broadcom Kona USB 2.0 PHY found on the BCM281xx family of SoCs. Signed-off-by: Matt Porter Signed-off-by: Felipe Balbi diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index 330ef2d..a49e853 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -51,4 +51,10 @@ config PHY_EXYNOS_DP_VIDEO help Support for Display Port PHY found on Samsung EXYNOS SoCs. +config BCM_KONA_USB2_PHY + tristate "Broadcom Kona USB2 PHY Driver" + depends on GENERIC_PHY + help + Enable this to support the Broadcom Kona USB 2.0 PHY. + endmenu diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index d0caae9..c447f1a 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -3,6 +3,7 @@ # obj-$(CONFIG_GENERIC_PHY) += phy-core.o +obj-$(CONFIG_BCM_KONA_USB2_PHY) += phy-bcm-kona-usb2.o obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-video.o obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o diff --git a/drivers/phy/phy-bcm-kona-usb2.c b/drivers/phy/phy-bcm-kona-usb2.c new file mode 100644 index 0000000..efc5c1a --- /dev/null +++ b/drivers/phy/phy-bcm-kona-usb2.c @@ -0,0 +1,158 @@ +/* + * phy-bcm-kona-usb2.c - Broadcom Kona USB2 Phy Driver + * + * Copyright (C) 2013 Linaro Limited + * Matt Porter + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define OTGCTL (0) +#define OTGCTL_OTGSTAT2 BIT(31) +#define OTGCTL_OTGSTAT1 BIT(30) +#define OTGCTL_PRST_N_SW BIT(11) +#define OTGCTL_HRESET_N BIT(10) +#define OTGCTL_UTMI_LINE_STATE1 BIT(9) +#define OTGCTL_UTMI_LINE_STATE0 BIT(8) + +#define P1CTL (8) +#define P1CTL_SOFT_RESET BIT(1) +#define P1CTL_NON_DRIVING BIT(0) + +struct bcm_kona_usb { + void __iomem *regs; +}; + +static void bcm_kona_usb_phy_power(struct bcm_kona_usb *phy, int on) +{ + u32 val; + + val = readl(phy->regs + OTGCTL); + if (on) { + /* Configure and power PHY */ + val &= ~(OTGCTL_OTGSTAT2 | OTGCTL_OTGSTAT1 | + OTGCTL_UTMI_LINE_STATE1 | OTGCTL_UTMI_LINE_STATE0); + val |= OTGCTL_PRST_N_SW | OTGCTL_HRESET_N; + } else { + val &= ~(OTGCTL_PRST_N_SW | OTGCTL_HRESET_N); + } + writel(val, phy->regs + OTGCTL); +} + +static int bcm_kona_usb_phy_init(struct phy *gphy) +{ + struct bcm_kona_usb *phy = phy_get_drvdata(gphy); + u32 val; + + /* Soft reset PHY */ + val = readl(phy->regs + P1CTL); + val &= ~P1CTL_NON_DRIVING; + val |= P1CTL_SOFT_RESET; + writel(val, phy->regs + P1CTL); + writel(val & ~P1CTL_SOFT_RESET, phy->regs + P1CTL); + /* Reset needs to be asserted for 2ms */ + mdelay(2); + writel(val | P1CTL_SOFT_RESET, phy->regs + P1CTL); + + return 0; +} + +static int bcm_kona_usb_phy_power_on(struct phy *gphy) +{ + struct bcm_kona_usb *phy = phy_get_drvdata(gphy); + + bcm_kona_usb_phy_power(phy, 1); + + return 0; +} + +static int bcm_kona_usb_phy_power_off(struct phy *gphy) +{ + struct bcm_kona_usb *phy = phy_get_drvdata(gphy); + + bcm_kona_usb_phy_power(phy, 0); + + return 0; +} + +static struct phy_ops ops = { + .init = bcm_kona_usb_phy_init, + .power_on = bcm_kona_usb_phy_power_on, + .power_off = bcm_kona_usb_phy_power_off, + .owner = THIS_MODULE, +}; + +static int bcm_kona_usb2_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bcm_kona_usb *phy; + struct resource *res; + struct phy *gphy; + struct phy_provider *phy_provider; + + phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); + if (!phy) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + phy->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(phy->regs)) + return PTR_ERR(phy->regs); + + platform_set_drvdata(pdev, phy); + + gphy = devm_phy_create(dev, &ops, NULL); + if (IS_ERR(gphy)) + return PTR_ERR(gphy); + + /* The Kona PHY supports an 8-bit wide UTMI interface */ + phy_set_bus_width(gphy, 8); + + phy_set_drvdata(gphy, phy); + + phy_provider = devm_of_phy_provider_register(dev, + of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + return 0; +} + +static const struct of_device_id bcm_kona_usb2_dt_ids[] = { + { .compatible = "brcm,kona-usb2-phy" }, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(of, bcm_kona_usb2_dt_ids); + +static struct platform_driver bcm_kona_usb2_driver = { + .probe = bcm_kona_usb2_probe, + .driver = { + .name = "bcm-kona-usb2", + .owner = THIS_MODULE, + .of_match_table = bcm_kona_usb2_dt_ids, + }, +}; + +module_platform_driver(bcm_kona_usb2_driver); + +MODULE_ALIAS("platform:bcm-kona-usb2"); +MODULE_AUTHOR("Matt Porter "); +MODULE_DESCRIPTION("BCM Kona USB 2.0 PHY driver"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 27e9dcc924e92239625e670e269688ccbccbf777 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Mon, 23 Dec 2013 21:25:49 +0100 Subject: usb: gadget: Add UDC driver for Aeroflex Gaisler GRUSBDC This adds an UDC driver for GRUSBDC USB Device Controller cores available in the GRLIB VHDL IP core library. The driver only supports DMA mode. Signed-off-by: Andreas Larsson Signed-off-by: Felipe Balbi diff --git a/Documentation/devicetree/bindings/usb/gr-udc.txt b/Documentation/devicetree/bindings/usb/gr-udc.txt new file mode 100644 index 0000000..0c5118f --- /dev/null +++ b/Documentation/devicetree/bindings/usb/gr-udc.txt @@ -0,0 +1,28 @@ +USB Peripheral Controller driver for Aeroflex Gaisler GRUSBDC. + +The GRUSBDC USB Device Controller core is available in the GRLIB VHDL +IP core library. + +Note: In the ordinary environment for the core, a Leon SPARC system, +these properties are built from information in the AMBA plug&play. + +Required properties: + +- name : Should be "GAISLER_USBDC" or "01_021" + +- reg : Address and length of the register set for the device + +- interrupts : Interrupt numbers for this device + +Optional properties: + +- epobufsizes : An array of buffer sizes for OUT endpoints. If the property is + not present, or for endpoints outside of the array, 1024 is assumed by + the driver. + +- epibufsizes : An array of buffer sizes for IN endpoints. If the property is + not present, or for endpoints outside of the array, 1024 is assumed by + the driver. + +For further information look in the documentation for the GLIB IP core library: +http://www.gaisler.com/products/grlib/grip.pdf diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index fbc5607..8154165 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -216,6 +216,13 @@ config USB_FOTG210_UDC Say "y" to link the driver statically, or "m" to build a dynamically linked module called "fotg210_udc". +config USB_GR_UDC + tristate "Aeroflex Gaisler GRUSBDC USB Peripheral Controller Driver" + depends on HAS_DMA + help + Select this to support Aeroflex Gaisler GRUSBDC cores from the GRLIB + VHDL IP core library. + config USB_OMAP tristate "OMAP USB Device Controller" depends on ARCH_OMAP1 diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 6cccdfe..5f150bc 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -35,6 +35,7 @@ mv_udc-y := mv_udc_core.o obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o obj-$(CONFIG_USB_FOTG210_UDC) += fotg210-udc.o obj-$(CONFIG_USB_MV_U3D) += mv_u3d_core.o +obj-$(CONFIG_USB_GR_UDC) += gr_udc.o # USB Functions usb_f_acm-y := f_acm.o diff --git a/drivers/usb/gadget/gr_udc.c b/drivers/usb/gadget/gr_udc.c new file mode 100644 index 0000000..5f9c659 --- /dev/null +++ b/drivers/usb/gadget/gr_udc.c @@ -0,0 +1,2242 @@ +/* + * USB Peripheral Controller driver for Aeroflex Gaisler GRUSBDC. + * + * 2013 (c) Aeroflex Gaisler AB + * + * This driver supports GRUSBDC USB Device Controller cores available in the + * GRLIB VHDL IP core library. + * + * Full documentation of the GRUSBDC core can be found here: + * http://www.gaisler.com/products/grlib/grip.pdf + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Contributors: + * - Andreas Larsson + * - Marko Isomaki + */ + +/* + * A GRUSBDC core can have up to 16 IN endpoints and 16 OUT endpoints each + * individually configurable to any of the four USB transfer types. This driver + * only supports cores in DMA mode. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "gr_udc.h" + +#define DRIVER_NAME "gr_udc" +#define DRIVER_DESC "Aeroflex Gaisler GRUSBDC USB Peripheral Controller" + +static const char driver_name[] = DRIVER_NAME; +static const char driver_desc[] = DRIVER_DESC; + +#define gr_read32(x) (ioread32be((x))) +#define gr_write32(x, v) (iowrite32be((v), (x))) + +/* USB speed and corresponding string calculated from status register value */ +#define GR_SPEED(status) \ + ((status & GR_STATUS_SP) ? USB_SPEED_FULL : USB_SPEED_HIGH) +#define GR_SPEED_STR(status) usb_speed_string(GR_SPEED(status)) + +/* Size of hardware buffer calculated from epctrl register value */ +#define GR_BUFFER_SIZE(epctrl) \ + ((((epctrl) & GR_EPCTRL_BUFSZ_MASK) >> GR_EPCTRL_BUFSZ_POS) * \ + GR_EPCTRL_BUFSZ_SCALER) + +/* ---------------------------------------------------------------------- */ +/* Debug printout functionality */ + +static const char * const gr_modestring[] = {"control", "iso", "bulk", "int"}; + +static const char *gr_ep0state_string(enum gr_ep0state state) +{ + static const char *const names[] = { + [GR_EP0_DISCONNECT] = "disconnect", + [GR_EP0_SETUP] = "setup", + [GR_EP0_IDATA] = "idata", + [GR_EP0_ODATA] = "odata", + [GR_EP0_ISTATUS] = "istatus", + [GR_EP0_OSTATUS] = "ostatus", + [GR_EP0_STALL] = "stall", + [GR_EP0_SUSPEND] = "suspend", + }; + + if (state < 0 || state >= ARRAY_SIZE(names)) + return "UNKNOWN"; + + return names[state]; +} + +#ifdef VERBOSE_DEBUG + +static void gr_dbgprint_request(const char *str, struct gr_ep *ep, + struct gr_request *req) +{ + int buflen = ep->is_in ? req->req.length : req->req.actual; + int rowlen = 32; + int plen = min(rowlen, buflen); + + dev_dbg(ep->dev->dev, "%s: 0x%p, %d bytes data%s:\n", str, req, buflen, + (buflen > plen ? " (truncated)" : "")); + print_hex_dump_debug(" ", DUMP_PREFIX_NONE, + rowlen, 4, req->req.buf, plen, false); +} + +static void gr_dbgprint_devreq(struct gr_udc *dev, u8 type, u8 request, + u16 value, u16 index, u16 length) +{ + dev_vdbg(dev->dev, "REQ: %02x.%02x v%04x i%04x l%04x\n", + type, request, value, index, length); +} +#else /* !VERBOSE_DEBUG */ + +static void gr_dbgprint_request(const char *str, struct gr_ep *ep, + struct gr_request *req) {} + +static void gr_dbgprint_devreq(struct gr_udc *dev, u8 type, u8 request, + u16 value, u16 index, u16 length) {} + +#endif /* VERBOSE_DEBUG */ + +/* ---------------------------------------------------------------------- */ +/* Debugfs functionality */ + +#ifdef CONFIG_USB_GADGET_DEBUG_FS + +static void gr_seq_ep_show(struct seq_file *seq, struct gr_ep *ep) +{ + u32 epctrl = gr_read32(&ep->regs->epctrl); + u32 epstat = gr_read32(&ep->regs->epstat); + int mode = (epctrl & GR_EPCTRL_TT_MASK) >> GR_EPCTRL_TT_POS; + struct gr_request *req; + + seq_printf(seq, "%s:\n", ep->ep.name); + seq_printf(seq, " mode = %s\n", gr_modestring[mode]); + seq_printf(seq, " halted: %d\n", !!(epctrl & GR_EPCTRL_EH)); + seq_printf(seq, " disabled: %d\n", !!(epctrl & GR_EPCTRL_ED)); + seq_printf(seq, " valid: %d\n", !!(epctrl & GR_EPCTRL_EV)); + seq_printf(seq, " dma_start = %d\n", ep->dma_start); + seq_printf(seq, " stopped = %d\n", ep->stopped); + seq_printf(seq, " wedged = %d\n", ep->wedged); + seq_printf(seq, " callback = %d\n", ep->callback); + seq_printf(seq, " maxpacket = %d\n", ep->ep.maxpacket); + seq_printf(seq, " bytes_per_buffer = %d\n", ep->bytes_per_buffer); + if (mode == 1 || mode == 3) + seq_printf(seq, " nt = %d\n", + (epctrl & GR_EPCTRL_NT_MASK) >> GR_EPCTRL_NT_POS); + + seq_printf(seq, " Buffer 0: %s %s%d\n", + epstat & GR_EPSTAT_B0 ? "valid" : "invalid", + epstat & GR_EPSTAT_BS ? " " : "selected ", + (epstat & GR_EPSTAT_B0CNT_MASK) >> GR_EPSTAT_B0CNT_POS); + seq_printf(seq, " Buffer 1: %s %s%d\n", + epstat & GR_EPSTAT_B1 ? "valid" : "invalid", + epstat & GR_EPSTAT_BS ? "selected " : " ", + (epstat & GR_EPSTAT_B1CNT_MASK) >> GR_EPSTAT_B1CNT_POS); + + if (list_empty(&ep->queue)) { + seq_puts(seq, " Queue: empty\n\n"); + return; + } + + seq_puts(seq, " Queue:\n"); + list_for_each_entry(req, &ep->queue, queue) { + struct gr_dma_desc *desc; + struct gr_dma_desc *next; + + seq_printf(seq, " 0x%p: 0x%p %d %d\n", req, + &req->req.buf, req->req.actual, req->req.length); + + next = req->first_desc; + do { + desc = next; + next = desc->next_desc; + seq_printf(seq, " %c 0x%p (0x%08x): 0x%05x 0x%08x\n", + desc == req->curr_desc ? 'c' : ' ', + desc, desc->paddr, desc->ctrl, desc->data); + } while (desc != req->last_desc); + } + seq_puts(seq, "\n"); +} + + +static int gr_seq_show(struct seq_file *seq, void *v) +{ + struct gr_udc *dev = seq->private; + u32 control = gr_read32(&dev->regs->control); + u32 status = gr_read32(&dev->regs->status); + struct gr_ep *ep; + + seq_printf(seq, "usb state = %s\n", + usb_state_string(dev->gadget.state)); + seq_printf(seq, "address = %d\n", + (control & GR_CONTROL_UA_MASK) >> GR_CONTROL_UA_POS); + seq_printf(seq, "speed = %s\n", GR_SPEED_STR(status)); + seq_printf(seq, "ep0state = %s\n", gr_ep0state_string(dev->ep0state)); + seq_printf(seq, "irq_enabled = %d\n", dev->irq_enabled); + seq_printf(seq, "remote_wakeup = %d\n", dev->remote_wakeup); + seq_printf(seq, "test_mode = %d\n", dev->test_mode); + seq_puts(seq, "\n"); + + list_for_each_entry(ep, &dev->ep_list, ep_list) + gr_seq_ep_show(seq, ep); + + return 0; +} + +static int gr_dfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, gr_seq_show, inode->i_private); +} + +static const struct file_operations gr_dfs_fops = { + .owner = THIS_MODULE, + .open = gr_dfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void gr_dfs_create(struct gr_udc *dev) +{ + const char *name = "gr_udc_state"; + + dev->dfs_root = debugfs_create_dir(dev_name(dev->dev), NULL); + if (IS_ERR(dev->dfs_root)) { + dev_err(dev->dev, "Failed to create debugfs directory\n"); + return; + } + dev->dfs_state = debugfs_create_file(name, 0444, dev->dfs_root, + dev, &gr_dfs_fops); + if (IS_ERR(dev->dfs_state)) + dev_err(dev->dev, "Failed to create debugfs file %s\n", name); +} + +static void gr_dfs_delete(struct gr_udc *dev) +{ + /* Handles NULL and ERR pointers internally */ + debugfs_remove(dev->dfs_state); + debugfs_remove(dev->dfs_root); +} + +#else /* !CONFIG_USB_GADGET_DEBUG_FS */ + +static void gr_dfs_create(struct gr_udc *dev) {} +static void gr_dfs_delete(struct gr_udc *dev) {} + +#endif /* CONFIG_USB_GADGET_DEBUG_FS */ + +/* ---------------------------------------------------------------------- */ +/* DMA and request handling */ + +/* Allocates a new struct gr_dma_desc, sets paddr and zeroes the rest */ +static struct gr_dma_desc *gr_alloc_dma_desc(struct gr_ep *ep, gfp_t gfp_flags) +{ + dma_addr_t paddr; + struct gr_dma_desc *dma_desc; + + dma_desc = dma_pool_alloc(ep->dev->desc_pool, gfp_flags, &paddr); + if (!dma_desc) { + dev_err(ep->dev->dev, "Could not allocate from DMA pool\n"); + return NULL; + } + + memset(dma_desc, 0, sizeof(*dma_desc)); + dma_desc->paddr = paddr; + + return dma_desc; +} + +static inline void gr_free_dma_desc(struct gr_udc *dev, + struct gr_dma_desc *desc) +{ + dma_pool_free(dev->desc_pool, desc, (dma_addr_t)desc->paddr); +} + +/* Frees the chain of struct gr_dma_desc for the given request */ +static void gr_free_dma_desc_chain(struct gr_udc *dev, struct gr_request *req) +{ + struct gr_dma_desc *desc; + struct gr_dma_desc *next; + + next = req->first_desc; + if (!next) + return; + + do { + desc = next; + next = desc->next_desc; + gr_free_dma_desc(dev, desc); + } while (desc != req->last_desc); + + req->first_desc = NULL; + req->curr_desc = NULL; + req->last_desc = NULL; +} + +static void gr_ep0_setup(struct gr_udc *dev, struct gr_request *req); + +/* + * Frees allocated resources and calls the appropriate completion function/setup + * package handler for a finished request. + * + * Must be called with dev->lock held and irqs disabled. + */ +static void gr_finish_request(struct gr_ep *ep, struct gr_request *req, + int status) + __releases(&dev->lock) + __acquires(&dev->lock) +{ + struct gr_udc *dev; + + list_del_init(&req->queue); + + if (likely(req->req.status == -EINPROGRESS)) + req->req.status = status; + else + status = req->req.status; + + dev = ep->dev; + usb_gadget_unmap_request(&dev->gadget, &req->req, ep->is_in); + gr_free_dma_desc_chain(dev, req); + + if (ep->is_in) /* For OUT, actual gets updated bit by bit */ + req->req.actual = req->req.length; + + if (!status) { + if (ep->is_in) + gr_dbgprint_request("SENT", ep, req); + else + gr_dbgprint_request("RECV", ep, req); + } + + /* Prevent changes to ep->queue during callback */ + ep->callback = 1; + if (req == dev->ep0reqo && !status) { + if (req->setup) + gr_ep0_setup(dev, req); + else + dev_err(dev->dev, + "Unexpected non setup packet on ep0in\n"); + } else if (req->req.complete) { + spin_unlock(&dev->lock); + + req->req.complete(&ep->ep, &req->req); + + spin_lock(&dev->lock); + } + ep->callback = 0; +} + +static struct usb_request *gr_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) +{ + struct gr_request *req; + + req = kzalloc(sizeof(*req), gfp_flags); + if (!req) + return NULL; + + INIT_LIST_HEAD(&req->queue); + + return &req->req; +} + +/* + * Starts DMA for endpoint ep if there are requests in the queue. + * + * Must be called with dev->lock held and with !ep->stopped. + */ +static void gr_start_dma(struct gr_ep *ep) +{ + struct gr_request *req; + u32 dmactrl; + + if (list_empty(&ep->queue)) { + ep->dma_start = 0; + return; + } + + req = list_first_entry(&ep->queue, struct gr_request, queue); + + /* A descriptor should already have been allocated */ + BUG_ON(!req->curr_desc); + + wmb(); /* Make sure all is settled before handing it over to DMA */ + + /* Set the descriptor pointer in the hardware */ + gr_write32(&ep->regs->dmaaddr, req->curr_desc->paddr); + + /* Announce available descriptors */ + dmactrl = gr_read32(&ep->regs->dmactrl); + gr_write32(&ep->regs->dmactrl, dmactrl | GR_DMACTRL_DA); + + ep->dma_start = 1; +} + +/* + * Finishes the first request in the ep's queue and, if available, starts the + * next request in queue. + * + * Must be called with dev->lock held, irqs disabled and with !ep->stopped. + */ +static void gr_dma_advance(struct gr_ep *ep, int status) +{ + struct gr_request *req; + + req = list_first_entry(&ep->queue, struct gr_request, queue); + gr_finish_request(ep, req, status); + gr_start_dma(ep); /* Regardless of ep->dma_start */ +} + +/* + * Abort DMA for an endpoint. Sets the abort DMA bit which causes an ongoing DMA + * transfer to be canceled and clears GR_DMACTRL_DA. + * + * Must be called with dev->lock held. + */ +static void gr_abort_dma(struct gr_ep *ep) +{ + u32 dmactrl; + + dmactrl = gr_read32(&ep->regs->dmactrl); + gr_write32(&ep->regs->dmactrl, dmactrl | GR_DMACTRL_AD); +} + +/* + * Allocates and sets up a struct gr_dma_desc and putting it on the descriptor + * chain. + * + * Size is not used for OUT endpoints. Hardware can not be instructed to handle + * smaller buffer than MAXPL in the OUT direction. + */ +static int gr_add_dma_desc(struct gr_ep *ep, struct gr_request *req, + dma_addr_t data, unsigned size, gfp_t gfp_flags) +{ + struct gr_dma_desc *desc; + + desc = gr_alloc_dma_desc(ep, gfp_flags); + if (!desc) + return -ENOMEM; + + desc->data = data; + if (ep->is_in) + desc->ctrl = + (GR_DESC_IN_CTRL_LEN_MASK & size) | GR_DESC_IN_CTRL_EN; + else + desc->ctrl = GR_DESC_OUT_CTRL_IE; + + if (!req->first_desc) { + req->first_desc = desc; + req->curr_desc = desc; + } else { + req->last_desc->next_desc = desc; + req->last_desc->next = desc->paddr; + req->last_desc->ctrl |= GR_DESC_OUT_CTRL_NX; + } + req->last_desc = desc; + + return 0; +} + +/* + * Sets up a chain of struct gr_dma_descriptors pointing to buffers that + * together covers req->req.length bytes of the buffer at DMA address + * req->req.dma for the OUT direction. + * + * The first descriptor in the chain is enabled, the rest disabled. The + * interrupt handler will later enable them one by one when needed so we can + * find out when the transfer is finished. For OUT endpoints, all descriptors + * therefore generate interrutps. + */ +static int gr_setup_out_desc_list(struct gr_ep *ep, struct gr_request *req, + gfp_t gfp_flags) +{ + u16 bytes_left; /* Bytes left to provide descriptors for */ + u16 bytes_used; /* Bytes accommodated for */ + int ret = 0; + + req->first_desc = NULL; /* Signals that no allocation is done yet */ + bytes_left = req->req.length; + bytes_used = 0; + while (bytes_left > 0) { + dma_addr_t start = req->req.dma + bytes_used; + u16 size = min(bytes_left, ep->bytes_per_buffer); + + /* Should not happen however - gr_queue stops such lengths */ + if (size < ep->bytes_per_buffer) + dev_warn(ep->dev->dev, + "Buffer overrun risk: %u < %u bytes/buffer\n", + size, ep->bytes_per_buffer); + + ret = gr_add_dma_desc(ep, req, start, size, gfp_flags); + if (ret) + goto alloc_err; + + bytes_left -= size; + bytes_used += size; + } + + req->first_desc->ctrl |= GR_DESC_OUT_CTRL_EN; + + return 0; + +alloc_err: + gr_free_dma_desc_chain(ep->dev, req); + + return ret; +} + +/* + * Sets up a chain of struct gr_dma_descriptors pointing to buffers that + * together covers req->req.length bytes of the buffer at DMA address + * req->req.dma for the IN direction. + * + * When more data is provided than the maximum payload size, the hardware splits + * this up into several payloads automatically. Moreover, ep->bytes_per_buffer + * is always set to a multiple of the maximum payload (restricted to the valid + * number of maximum payloads during high bandwidth isochronous or interrupt + * transfers) + * + * All descriptors are enabled from the beginning and we only generate an + * interrupt for the last one indicating that the entire request has been pushed + * to hardware. + */ +static int gr_setup_in_desc_list(struct gr_ep *ep, struct gr_request *req, + gfp_t gfp_flags) +{ + u16 bytes_left; /* Bytes left in req to provide descriptors for */ + u16 bytes_used; /* Bytes in req accommodated for */ + int ret = 0; + + req->first_desc = NULL; /* Signals that no allocation is done yet */ + bytes_left = req->req.length; + bytes_used = 0; + do { /* Allow for zero length packets */ + dma_addr_t start = req->req.dma + bytes_used; + u16 size = min(bytes_left, ep->bytes_per_buffer); + + ret = gr_add_dma_desc(ep, req, start, size, gfp_flags); + if (ret) + goto alloc_err; + + bytes_left -= size; + bytes_used += size; + } while (bytes_left > 0); + + /* + * Send an extra zero length packet to indicate that no more data is + * available when req->req.zero is set and the data length is even + * multiples of ep->ep.maxpacket. + */ + if (req->req.zero && (req->req.length % ep->ep.maxpacket == 0)) { + ret = gr_add_dma_desc(ep, req, 0, 0, gfp_flags); + if (ret) + goto alloc_err; + } + + /* + * For IN packets we only want to know when the last packet has been + * transmitted (not just put into internal buffers). + */ + req->last_desc->ctrl |= GR_DESC_IN_CTRL_PI; + + return 0; + +alloc_err: + gr_free_dma_desc_chain(ep->dev, req); + + return ret; +} + +/* Must be called with dev->lock held */ +static int gr_queue(struct gr_ep *ep, struct gr_request *req, gfp_t gfp_flags) +{ + struct gr_udc *dev = ep->dev; + int ret; + + if (unlikely(!ep->ep.desc && ep->num != 0)) { + dev_err(dev->dev, "No ep descriptor for %s\n", ep->ep.name); + return -EINVAL; + } + + if (unlikely(!req->req.buf || !list_empty(&req->queue))) { + dev_err(dev->dev, + "Invalid request for %s: buf=%p list_empty=%d\n", + ep->ep.name, req->req.buf, list_empty(&req->queue)); + return -EINVAL; + } + + /* + * The DMA controller can not handle smaller OUT buffers than + * maxpacket. It could lead to buffer overruns if unexpectedly long + * packet are received. + */ + if (!ep->is_in && (req->req.length % ep->ep.maxpacket) != 0) { + dev_err(dev->dev, + "OUT request length %d is not multiple of maxpacket\n", + req->req.length); + return -EMSGSIZE; + } + + if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) { + dev_err(dev->dev, "-ESHUTDOWN"); + return -ESHUTDOWN; + } + + /* Can't touch registers when suspended */ + if (dev->ep0state == GR_EP0_SUSPEND) { + dev_err(dev->dev, "-EBUSY"); + return -EBUSY; + } + + /* Set up DMA mapping in case the caller didn't */ + ret = usb_gadget_map_request(&dev->gadget, &req->req, ep->is_in); + if (ret) { + dev_err(dev->dev, "usb_gadget_map_request"); + return ret; + } + + if (ep->is_in) + ret = gr_setup_in_desc_list(ep, req, gfp_flags); + else + ret = gr_setup_out_desc_list(ep, req, gfp_flags); + if (ret) + return ret; + + req->req.status = -EINPROGRESS; + req->req.actual = 0; + list_add_tail(&req->queue, &ep->queue); + + /* Start DMA if not started, otherwise interrupt handler handles it */ + if (!ep->dma_start && likely(!ep->stopped)) + gr_start_dma(ep); + + return 0; +} + +/* + * Queue a request from within the driver. + * + * Must be called with dev->lock held. + */ +static inline int gr_queue_int(struct gr_ep *ep, struct gr_request *req, + gfp_t gfp_flags) +{ + if (ep->is_in) + gr_dbgprint_request("RESP", ep, req); + + return gr_queue(ep, req, gfp_flags); +} + +/* ---------------------------------------------------------------------- */ +/* General helper functions */ + +/* + * Dequeue ALL requests. + * + * Must be called with dev->lock held and irqs disabled. + */ +static void gr_ep_nuke(struct gr_ep *ep) +{ + struct gr_request *req; + struct gr_udc *dev; + + dev = ep->dev; + + ep->stopped = 1; + ep->dma_start = 0; + gr_abort_dma(ep); + + while (!list_empty(&ep->queue)) { + req = list_first_entry(&ep->queue, struct gr_request, queue); + gr_finish_request(ep, req, -ESHUTDOWN); + } +} + +/* + * Reset the hardware state of this endpoint. + * + * Must be called with dev->lock held. + */ +static void gr_ep_reset(struct gr_ep *ep) +{ + gr_write32(&ep->regs->epctrl, 0); + gr_write32(&ep->regs->dmactrl, 0); + + ep->ep.maxpacket = MAX_CTRL_PL_SIZE; + ep->ep.desc = NULL; + ep->stopped = 1; + ep->dma_start = 0; +} + +/* + * Generate STALL on ep0in/out. + * + * Must be called with dev->lock held. + */ +static void gr_control_stall(struct gr_udc *dev) +{ + u32 epctrl; + + epctrl = gr_read32(&dev->epo[0].regs->epctrl); + gr_write32(&dev->epo[0].regs->epctrl, epctrl | GR_EPCTRL_CS); + epctrl = gr_read32(&dev->epi[0].regs->epctrl); + gr_write32(&dev->epi[0].regs->epctrl, epctrl | GR_EPCTRL_CS); + + dev->ep0state = GR_EP0_STALL; +} + +/* + * Halts, halts and wedges, or clears halt for an endpoint. + * + * Must be called with dev->lock held. + */ +static int gr_ep_halt_wedge(struct gr_ep *ep, int halt, int wedge, int fromhost) +{ + u32 epctrl; + int retval = 0; + + if (ep->num && !ep->ep.desc) + return -EINVAL; + + if (ep->num && ep->ep.desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) + return -EOPNOTSUPP; + + /* Never actually halt ep0, and therefore never clear halt for ep0 */ + if (!ep->num) { + if (halt && !fromhost) { + /* ep0 halt from gadget - generate protocol stall */ + gr_control_stall(ep->dev); + dev_dbg(ep->dev->dev, "EP: stall ep0\n"); + return 0; + } + return -EINVAL; + } + + dev_dbg(ep->dev->dev, "EP: %s halt %s\n", + (halt ? (wedge ? "wedge" : "set") : "clear"), ep->ep.name); + + epctrl = gr_read32(&ep->regs->epctrl); + if (halt) { + /* Set HALT */ + gr_write32(&ep->regs->epctrl, epctrl | GR_EPCTRL_EH); + ep->stopped = 1; + if (wedge) + ep->wedged = 1; + } else { + gr_write32(&ep->regs->epctrl, epctrl & ~GR_EPCTRL_EH); + ep->stopped = 0; + ep->wedged = 0; + + /* Things might have been queued up in the meantime */ + if (!ep->dma_start) + gr_start_dma(ep); + } + + return retval; +} + +/* Must be called with dev->lock held */ +static inline void gr_set_ep0state(struct gr_udc *dev, enum gr_ep0state value) +{ + if (dev->ep0state != value) + dev_vdbg(dev->dev, "STATE: ep0state=%s\n", + gr_ep0state_string(value)); + dev->ep0state = value; +} + +/* + * Should only be called when endpoints can not generate interrupts. + * + * Must be called with dev->lock held. + */ +static void gr_disable_interrupts_and_pullup(struct gr_udc *dev) +{ + gr_write32(&dev->regs->control, 0); + wmb(); /* Make sure that we do not deny one of our interrupts */ + dev->irq_enabled = 0; +} + +/* + * Stop all device activity and disable data line pullup. + * + * Must be called with dev->lock held and irqs disabled. + */ +static void gr_stop_activity(struct gr_udc *dev) +{ + struct gr_ep *ep; + + list_for_each_entry(ep, &dev->ep_list, ep_list) + gr_ep_nuke(ep); + + gr_disable_interrupts_and_pullup(dev); + + gr_set_ep0state(dev, GR_EP0_DISCONNECT); + usb_gadget_set_state(&dev->gadget, USB_STATE_NOTATTACHED); +} + +/* ---------------------------------------------------------------------- */ +/* ep0 setup packet handling */ + +static void gr_ep0_testmode_complete(struct usb_ep *_ep, + struct usb_request *_req) +{ + struct gr_ep *ep; + struct gr_udc *dev; + u32 control; + + ep = container_of(_ep, struct gr_ep, ep); + dev = ep->dev; + + spin_lock(&dev->lock); + + control = gr_read32(&dev->regs->control); + control |= GR_CONTROL_TM | (dev->test_mode << GR_CONTROL_TS_POS); + gr_write32(&dev->regs->control, control); + + spin_unlock(&dev->lock); +} + +static void gr_ep0_dummy_complete(struct usb_ep *_ep, struct usb_request *_req) +{ + /* Nothing needs to be done here */ +} + +/* + * Queue a response on ep0in. + * + * Must be called with dev->lock held. + */ +static int gr_ep0_respond(struct gr_udc *dev, u8 *buf, int length, + void (*complete)(struct usb_ep *ep, + struct usb_request *req)) +{ + u8 *reqbuf = dev->ep0reqi->req.buf; + int status; + int i; + + for (i = 0; i < length; i++) + reqbuf[i] = buf[i]; + dev->ep0reqi->req.length = length; + dev->ep0reqi->req.complete = complete; + + status = gr_queue_int(&dev->epi[0], dev->ep0reqi, GFP_ATOMIC); + if (status < 0) + dev_err(dev->dev, + "Could not queue ep0in setup response: %d\n", status); + + return status; +} + +/* + * Queue a 2 byte response on ep0in. + * + * Must be called with dev->lock held. + */ +static inline int gr_ep0_respond_u16(struct gr_udc *dev, u16 response) +{ + __le16 le_response = cpu_to_le16(response); + + return gr_ep0_respond(dev, (u8 *)&le_response, 2, + gr_ep0_dummy_complete); +} + +/* + * Queue a ZLP response on ep0in. + * + * Must be called with dev->lock held. + */ +static inline int gr_ep0_respond_empty(struct gr_udc *dev) +{ + return gr_ep0_respond(dev, NULL, 0, gr_ep0_dummy_complete); +} + +/* + * This is run when a SET_ADDRESS request is received. First writes + * the new address to the control register which is updated internally + * when the next IN packet is ACKED. + * + * Must be called with dev->lock held. + */ +static void gr_set_address(struct gr_udc *dev, u8 address) +{ + u32 control; + + control = gr_read32(&dev->regs->control) & ~GR_CONTROL_UA_MASK; + control |= (address << GR_CONTROL_UA_POS) & GR_CONTROL_UA_MASK; + control |= GR_CONTROL_SU; + gr_write32(&dev->regs->control, control); +} + +/* + * Returns negative for STALL, 0 for successful handling and positive for + * delegation. + * + * Must be called with dev->lock held. + */ +static int gr_device_request(struct gr_udc *dev, u8 type, u8 request, + u16 value, u16 index) +{ + u16 response; + u8 test; + + switch (request) { + case USB_REQ_SET_ADDRESS: + dev_dbg(dev->dev, "STATUS: address %d\n", value & 0xff); + gr_set_address(dev, value & 0xff); + if (value) + usb_gadget_set_state(&dev->gadget, USB_STATE_ADDRESS); + else + usb_gadget_set_state(&dev->gadget, USB_STATE_DEFAULT); + return gr_ep0_respond_empty(dev); + + case USB_REQ_GET_STATUS: + /* Self powered | remote wakeup */ + response = 0x0001 | (dev->remote_wakeup ? 0x0002 : 0); + return gr_ep0_respond_u16(dev, response); + + case USB_REQ_SET_FEATURE: + switch (value) { + case USB_DEVICE_REMOTE_WAKEUP: + /* Allow remote wakeup */ + dev->remote_wakeup = 1; + return gr_ep0_respond_empty(dev); + + case USB_DEVICE_TEST_MODE: + /* The hardware does not support TEST_FORCE_EN */ + test = index >> 8; + if (test >= TEST_J && test <= TEST_PACKET) { + dev->test_mode = test; + return gr_ep0_respond(dev, NULL, 0, + gr_ep0_testmode_complete); + } + } + break; + + case USB_REQ_CLEAR_FEATURE: + switch (value) { + case USB_DEVICE_REMOTE_WAKEUP: + /* Disallow remote wakeup */ + dev->remote_wakeup = 0; + return gr_ep0_respond_empty(dev); + } + break; + } + + return 1; /* Delegate the rest */ +} + +/* + * Returns negative for STALL, 0 for successful handling and positive for + * delegation. + * + * Must be called with dev->lock held. + */ +static int gr_interface_request(struct gr_udc *dev, u8 type, u8 request, + u16 value, u16 index) +{ + if (dev->gadget.state != USB_STATE_CONFIGURED) + return -1; + + /* + * Should return STALL for invalid interfaces, but udc driver does not + * know anything about that. However, many gadget drivers do not handle + * GET_STATUS so we need to take care of that. + */ + + switch (request) { + case USB_REQ_GET_STATUS: + return gr_ep0_respond_u16(dev, 0x0000); + + case USB_REQ_SET_FEATURE: + case USB_REQ_CLEAR_FEATURE: + /* + * No possible valid standard requests. Still let gadget drivers + * have a go at it. + */ + break; + } + + return 1; /* Delegate the rest */ +} + +/* + * Returns negative for STALL, 0 for successful handling and positive for + * delegation. + * + * Must be called with dev->lock held. + */ +static int gr_endpoint_request(struct gr_udc *dev, u8 type, u8 request, + u16 value, u16 index) +{ + struct gr_ep *ep; + int status; + int halted; + u8 epnum = index & USB_ENDPOINT_NUMBER_MASK; + u8 is_in = index & USB_ENDPOINT_DIR_MASK; + + if ((is_in && epnum >= dev->nepi) || (!is_in && epnum >= dev->nepo)) + return -1; + + if (dev->gadget.state != USB_STATE_CONFIGURED && epnum != 0) + return -1; + + ep = (is_in ? &dev->epi[epnum] : &dev->epo[epnum]); + + switch (request) { + case USB_REQ_GET_STATUS: + halted = gr_read32(&ep->regs->epctrl) & GR_EPCTRL_EH; + return gr_ep0_respond_u16(dev, halted ? 0x0001 : 0); + + case USB_REQ_SET_FEATURE: + switch (value) { + case USB_ENDPOINT_HALT: + status = gr_ep_halt_wedge(ep, 1, 0, 1); + if (status >= 0) + status = gr_ep0_respond_empty(dev); + return status; + } + break; + + case USB_REQ_CLEAR_FEATURE: + switch (value) { + case USB_ENDPOINT_HALT: + if (ep->wedged) + return -1; + status = gr_ep_halt_wedge(ep, 0, 0, 1); + if (status >= 0) + status = gr_ep0_respond_empty(dev); + return status; + } + break; + } + + return 1; /* Delegate the rest */ +} + +/* Must be called with dev->lock held */ +static void gr_ep0out_requeue(struct gr_udc *dev) +{ + int ret = gr_queue_int(&dev->epo[0], dev->ep0reqo, GFP_ATOMIC); + + if (ret) + dev_err(dev->dev, "Could not queue ep0out setup request: %d\n", + ret); +} + +/* + * The main function dealing with setup requests on ep0. + * + * Must be called with dev->lock held and irqs disabled + */ +static void gr_ep0_setup(struct gr_udc *dev, struct gr_request *req) + __releases(&dev->lock) + __acquires(&dev->lock) +{ + union { + struct usb_ctrlrequest ctrl; + u8 raw[8]; + u32 word[2]; + } u; + u8 type; + u8 request; + u16 value; + u16 index; + u16 length; + int i; + int status; + + /* Restore from ep0 halt */ + if (dev->ep0state == GR_EP0_STALL) { + gr_set_ep0state(dev, GR_EP0_SETUP); + if (!req->req.actual) + goto out; + } + + if (dev->ep0state == GR_EP0_ISTATUS) { + gr_set_ep0state(dev, GR_EP0_SETUP); + if (req->req.actual > 0) + dev_dbg(dev->dev, + "Unexpected setup packet at state %s\n", + gr_ep0state_string(GR_EP0_ISTATUS)); + else + goto out; /* Got expected ZLP */ + } else if (dev->ep0state != GR_EP0_SETUP) { + dev_info(dev->dev, + "Unexpected ep0out request at state %s - stalling\n", + gr_ep0state_string(dev->ep0state)); + gr_control_stall(dev); + gr_set_ep0state(dev, GR_EP0_SETUP); + goto out; + } else if (!req->req.actual) { + dev_dbg(dev->dev, "Unexpected ZLP at state %s\n", + gr_ep0state_string(dev->ep0state)); + goto out; + } + + /* Handle SETUP packet */ + for (i = 0; i < req->req.actual; i++) + u.raw[i] = ((u8 *)req->req.buf)[i]; + + type = u.ctrl.bRequestType; + request = u.ctrl.bRequest; + value = le16_to_cpu(u.ctrl.wValue); + index = le16_to_cpu(u.ctrl.wIndex); + length = le16_to_cpu(u.ctrl.wLength); + + gr_dbgprint_devreq(dev, type, request, value, index, length); + + /* Check for data stage */ + if (length) { + if (type & USB_DIR_IN) + gr_set_ep0state(dev, GR_EP0_IDATA); + else + gr_set_ep0state(dev, GR_EP0_ODATA); + } + + status = 1; /* Positive status flags delegation */ + if ((type & USB_TYPE_MASK) == USB_TYPE_STANDARD) { + switch (type & USB_RECIP_MASK) { + case USB_RECIP_DEVICE: + status = gr_device_request(dev, type, request, + value, index); + break; + case USB_RECIP_ENDPOINT: + status = gr_endpoint_request(dev, type, request, + value, index); + break; + case USB_RECIP_INTERFACE: + status = gr_interface_request(dev, type, request, + value, index); + break; + } + } + + if (status > 0) { + spin_unlock(&dev->lock); + + dev_vdbg(dev->dev, "DELEGATE\n"); + status = dev->driver->setup(&dev->gadget, &u.ctrl); + + spin_lock(&dev->lock); + } + + /* Generate STALL on both ep0out and ep0in if requested */ + if (unlikely(status < 0)) { + dev_vdbg(dev->dev, "STALL\n"); + gr_control_stall(dev); + } + + if ((type & USB_TYPE_MASK) == USB_TYPE_STANDARD && + request == USB_REQ_SET_CONFIGURATION) { + if (!value) { + dev_dbg(dev->dev, "STATUS: deconfigured\n"); + usb_gadget_set_state(&dev->gadget, USB_STATE_ADDRESS); + } else if (status >= 0) { + /* Not configured unless gadget OK:s it */ + dev_dbg(dev->dev, "STATUS: configured: %d\n", value); + usb_gadget_set_state(&dev->gadget, + USB_STATE_CONFIGURED); + } + } + + /* Get ready for next stage */ + if (dev->ep0state == GR_EP0_ODATA) + gr_set_ep0state(dev, GR_EP0_OSTATUS); + else if (dev->ep0state == GR_EP0_IDATA) + gr_set_ep0state(dev, GR_EP0_ISTATUS); + else + gr_set_ep0state(dev, GR_EP0_SETUP); + +out: + gr_ep0out_requeue(dev); +} + +/* ---------------------------------------------------------------------- */ +/* VBUS and USB reset handling */ + +/* Must be called with dev->lock held and irqs disabled */ +static void gr_vbus_connected(struct gr_udc *dev, u32 status) +{ + u32 control; + + dev->gadget.speed = GR_SPEED(status); + usb_gadget_set_state(&dev->gadget, USB_STATE_POWERED); + + /* Turn on full interrupts and pullup */ + control = (GR_CONTROL_SI | GR_CONTROL_UI | GR_CONTROL_VI | + GR_CONTROL_SP | GR_CONTROL_EP); + gr_write32(&dev->regs->control, control); +} + +/* Must be called with dev->lock held */ +static void gr_enable_vbus_detect(struct gr_udc *dev) +{ + u32 status; + + dev->irq_enabled = 1; + wmb(); /* Make sure we do not ignore an interrupt */ + gr_write32(&dev->regs->control, GR_CONTROL_VI); + + /* Take care of the case we are already plugged in at this point */ + status = gr_read32(&dev->regs->status); + if (status & GR_STATUS_VB) + gr_vbus_connected(dev, status); +} + +/* Must be called with dev->lock held and irqs disabled */ +static void gr_vbus_disconnected(struct gr_udc *dev) +{ + gr_stop_activity(dev); + + /* Report disconnect */ + if (dev->driver && dev->driver->disconnect) { + spin_unlock(&dev->lock); + + dev->driver->disconnect(&dev->gadget); + + spin_lock(&dev->lock); + } + + gr_enable_vbus_detect(dev); +} + +/* Must be called with dev->lock held and irqs disabled */ +static void gr_udc_usbreset(struct gr_udc *dev, u32 status) +{ + gr_set_address(dev, 0); + gr_set_ep0state(dev, GR_EP0_SETUP); + usb_gadget_set_state(&dev->gadget, USB_STATE_DEFAULT); + dev->gadget.speed = GR_SPEED(status); + + gr_ep_nuke(&dev->epo[0]); + gr_ep_nuke(&dev->epi[0]); + dev->epo[0].stopped = 0; + dev->epi[0].stopped = 0; + gr_ep0out_requeue(dev); +} + +/* ---------------------------------------------------------------------- */ +/* Irq handling */ + +/* + * Handles interrupts from in endpoints. Returns whether something was handled. + * + * Must be called with dev->lock held, irqs disabled and with !ep->stopped. + */ +static int gr_handle_in_ep(struct gr_ep *ep) +{ + struct gr_request *req; + + req = list_first_entry(&ep->queue, struct gr_request, queue); + if (!req->last_desc) + return 0; + + if (ACCESS_ONCE(req->last_desc->ctrl) & GR_DESC_IN_CTRL_EN) + return 0; /* Not put in hardware buffers yet */ + + if (gr_read32(&ep->regs->epstat) & (GR_EPSTAT_B1 | GR_EPSTAT_B0)) + return 0; /* Not transmitted yet, still in hardware buffers */ + + /* Write complete */ + gr_dma_advance(ep, 0); + + return 1; +} + +/* + * Handles interrupts from out endpoints. Returns whether something was handled. + * + * Must be called with dev->lock held, irqs disabled and with !ep->stopped. + */ +static int gr_handle_out_ep(struct gr_ep *ep) +{ + u32 ep_dmactrl; + u32 ctrl; + u16 len; + struct gr_request *req; + struct gr_udc *dev = ep->dev; + + req = list_first_entry(&ep->queue, struct gr_request, queue); + if (!req->curr_desc) + return 0; + + ctrl = ACCESS_ONCE(req->curr_desc->ctrl); + if (ctrl & GR_DESC_OUT_CTRL_EN) + return 0; /* Not received yet */ + + /* Read complete */ + len = ctrl & GR_DESC_OUT_CTRL_LEN_MASK; + req->req.actual += len; + if (ctrl & GR_DESC_OUT_CTRL_SE) + req->setup = 1; + + if (len < ep->ep.maxpacket || req->req.actual == req->req.length) { + /* Short packet or the expected size - we are done */ + + if ((ep == &dev->epo[0]) && (dev->ep0state == GR_EP0_OSTATUS)) { + /* + * Send a status stage ZLP to ack the DATA stage in the + * OUT direction. This needs to be done before + * gr_dma_advance as that can lead to a call to + * ep0_setup that can change dev->ep0state. + */ + gr_ep0_respond_empty(dev); + gr_set_ep0state(dev, GR_EP0_SETUP); + } + + gr_dma_advance(ep, 0); + } else { + /* Not done yet. Enable the next descriptor to receive more. */ + req->curr_desc = req->curr_desc->next_desc; + req->curr_desc->ctrl |= GR_DESC_OUT_CTRL_EN; + + ep_dmactrl = gr_read32(&ep->regs->dmactrl); + gr_write32(&ep->regs->dmactrl, ep_dmactrl | GR_DMACTRL_DA); + } + + return 1; +} + +/* + * Handle state changes. Returns whether something was handled. + * + * Must be called with dev->lock held and irqs disabled. + */ +static int gr_handle_state_changes(struct gr_udc *dev) +{ + u32 status = gr_read32(&dev->regs->status); + int handled = 0; + int powstate = !(dev->gadget.state == USB_STATE_NOTATTACHED || + dev->gadget.state == USB_STATE_ATTACHED); + + /* VBUS valid detected */ + if (!powstate && (status & GR_STATUS_VB)) { + dev_dbg(dev->dev, "STATUS: vbus valid detected\n"); + gr_vbus_connected(dev, status); + handled = 1; + } + + /* Disconnect */ + if (powstate && !(status & GR_STATUS_VB)) { + dev_dbg(dev->dev, "STATUS: vbus invalid detected\n"); + gr_vbus_disconnected(dev); + handled = 1; + } + + /* USB reset detected */ + if (status & GR_STATUS_UR) { + dev_dbg(dev->dev, "STATUS: USB reset - speed is %s\n", + GR_SPEED_STR(status)); + gr_write32(&dev->regs->status, GR_STATUS_UR); + gr_udc_usbreset(dev, status); + handled = 1; + } + + /* Speed change */ + if (dev->gadget.speed != GR_SPEED(status)) { + dev_dbg(dev->dev, "STATUS: USB Speed change to %s\n", + GR_SPEED_STR(status)); + dev->gadget.speed = GR_SPEED(status); + handled = 1; + } + + /* Going into suspend */ + if ((dev->ep0state != GR_EP0_SUSPEND) && !(status & GR_STATUS_SU)) { + dev_dbg(dev->dev, "STATUS: USB suspend\n"); + gr_set_ep0state(dev, GR_EP0_SUSPEND); + dev->suspended_from = dev->gadget.state; + usb_gadget_set_state(&dev->gadget, USB_STATE_SUSPENDED); + + if ((dev->gadget.speed != USB_SPEED_UNKNOWN) && + dev->driver && dev->driver->suspend) { + spin_unlock(&dev->lock); + + dev->driver->suspend(&dev->gadget); + + spin_lock(&dev->lock); + } + handled = 1; + } + + /* Coming out of suspend */ + if ((dev->ep0state == GR_EP0_SUSPEND) && (status & GR_STATUS_SU)) { + dev_dbg(dev->dev, "STATUS: USB resume\n"); + if (dev->suspended_from == USB_STATE_POWERED) + gr_set_ep0state(dev, GR_EP0_DISCONNECT); + else + gr_set_ep0state(dev, GR_EP0_SETUP); + usb_gadget_set_state(&dev->gadget, dev->suspended_from); + + if ((dev->gadget.speed != USB_SPEED_UNKNOWN) && + dev->driver && dev->driver->resume) { + spin_unlock(&dev->lock); + + dev->driver->resume(&dev->gadget); + + spin_lock(&dev->lock); + } + handled = 1; + } + + return handled; +} + +/* Non-interrupt context irq handler */ +static irqreturn_t gr_irq_handler(int irq, void *_dev) +{ + struct gr_udc *dev = _dev; + struct gr_ep *ep; + int handled = 0; + int i; + unsigned long flags; + + spin_lock_irqsave(&dev->lock, flags); + + if (!dev->irq_enabled) + goto out; + + /* + * Check IN ep interrupts. We check these before the OUT eps because + * some gadgets reuse the request that might already be currently + * outstanding and needs to be completed (mainly setup requests). + */ + for (i = 0; i < dev->nepi; i++) { + ep = &dev->epi[i]; + if (!ep->stopped && !ep->callback && !list_empty(&ep->queue)) + handled = gr_handle_in_ep(ep) || handled; + } + + /* Check OUT ep interrupts */ + for (i = 0; i < dev->nepo; i++) { + ep = &dev->epo[i]; + if (!ep->stopped && !ep->callback && !list_empty(&ep->queue)) + handled = gr_handle_out_ep(ep) || handled; + } + + /* Check status interrupts */ + handled = gr_handle_state_changes(dev) || handled; + + /* + * Check AMBA DMA errors. Only check if we didn't find anything else to + * handle because this shouldn't happen if we did everything right. + */ + if (!handled) { + list_for_each_entry(ep, &dev->ep_list, ep_list) { + if (gr_read32(&ep->regs->dmactrl) & GR_DMACTRL_AE) { + dev_err(dev->dev, + "AMBA Error occurred for %s\n", + ep->ep.name); + handled = 1; + } + } + } + +out: + spin_unlock_irqrestore(&dev->lock, flags); + + return handled ? IRQ_HANDLED : IRQ_NONE; +} + +/* Interrupt context irq handler */ +static irqreturn_t gr_irq(int irq, void *_dev) +{ + struct gr_udc *dev = _dev; + + if (!dev->irq_enabled) + return IRQ_NONE; + + return IRQ_WAKE_THREAD; +} + +/* ---------------------------------------------------------------------- */ +/* USB ep ops */ + +/* Enable endpoint. Not for ep0in and ep0out that are handled separately. */ +static int gr_ep_enable(struct usb_ep *_ep, + const struct usb_endpoint_descriptor *desc) +{ + struct gr_udc *dev; + struct gr_ep *ep; + u8 mode; + u8 nt; + u16 max; + u16 buffer_size = 0; + u32 epctrl; + + ep = container_of(_ep, struct gr_ep, ep); + if (!_ep || !desc || desc->bDescriptorType != USB_DT_ENDPOINT) + return -EINVAL; + + dev = ep->dev; + + /* 'ep0' IN and OUT are reserved */ + if (ep == &dev->epo[0] || ep == &dev->epi[0]) + return -EINVAL; + + if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + + /* Make sure we are clear for enabling */ + epctrl = gr_read32(&ep->regs->epctrl); + if (epctrl & GR_EPCTRL_EV) + return -EBUSY; + + /* Check that directions match */ + if (!ep->is_in != !usb_endpoint_dir_in(desc)) + return -EINVAL; + + /* Check ep num */ + if ((!ep->is_in && ep->num >= dev->nepo) || + (ep->is_in && ep->num >= dev->nepi)) + return -EINVAL; + + if (usb_endpoint_xfer_control(desc)) { + mode = 0; + } else if (usb_endpoint_xfer_isoc(desc)) { + mode = 1; + } else if (usb_endpoint_xfer_bulk(desc)) { + mode = 2; + } else if (usb_endpoint_xfer_int(desc)) { + mode = 3; + } else { + dev_err(dev->dev, "Unknown transfer type for %s\n", + ep->ep.name); + return -EINVAL; + } + + /* + * Bits 10-0 set the max payload. 12-11 set the number of + * additional transactions. + */ + max = 0x7ff & usb_endpoint_maxp(desc); + nt = 0x3 & (usb_endpoint_maxp(desc) >> 11); + buffer_size = GR_BUFFER_SIZE(epctrl); + if (nt && (mode == 0 || mode == 2)) { + dev_err(dev->dev, + "%s mode: multiple trans./microframe not valid\n", + (mode == 2 ? "Bulk" : "Control")); + return -EINVAL; + } else if (nt == 0x11) { + dev_err(dev->dev, "Invalid value for trans./microframe\n"); + return -EINVAL; + } else if ((nt + 1) * max > buffer_size) { + dev_err(dev->dev, "Hw buffer size %d < max payload %d * %d\n", + buffer_size, (nt + 1), max); + return -EINVAL; + } else if (max == 0) { + dev_err(dev->dev, "Max payload cannot be set to 0\n"); + return -EINVAL; + } + + spin_lock(&ep->dev->lock); + + if (!ep->stopped) { + spin_unlock(&ep->dev->lock); + return -EBUSY; + } + + ep->stopped = 0; + ep->wedged = 0; + ep->ep.desc = desc; + ep->ep.maxpacket = max; + ep->dma_start = 0; + + + if (nt) { + /* + * Maximum possible size of all payloads in one microframe + * regardless of direction when using high-bandwidth mode. + */ + ep->bytes_per_buffer = (nt + 1) * max; + } else if (ep->is_in) { + /* + * The biggest multiple of maximum packet size that fits into + * the buffer. The hardware will split up into many packets in + * the IN direction. + */ + ep->bytes_per_buffer = (buffer_size / max) * max; + } else { + /* + * Only single packets will be placed the buffers in the OUT + * direction. + */ + ep->bytes_per_buffer = max; + } + + epctrl = (max << GR_EPCTRL_MAXPL_POS) + | (nt << GR_EPCTRL_NT_POS) + | (mode << GR_EPCTRL_TT_POS) + | GR_EPCTRL_EV; + if (ep->is_in) + epctrl |= GR_EPCTRL_PI; + gr_write32(&ep->regs->epctrl, epctrl); + + gr_write32(&ep->regs->dmactrl, GR_DMACTRL_IE | GR_DMACTRL_AI); + + spin_unlock(&ep->dev->lock); + + dev_dbg(ep->dev->dev, "EP: %s enabled - %s with %d bytes/buffer\n", + ep->ep.name, gr_modestring[mode], ep->bytes_per_buffer); + return 0; +} + +/* Disable endpoint. Not for ep0in and ep0out that are handled separately. */ +static int gr_ep_disable(struct usb_ep *_ep) +{ + struct gr_ep *ep; + struct gr_udc *dev; + unsigned long flags; + + ep = container_of(_ep, struct gr_ep, ep); + if (!_ep || !ep->ep.desc) + return -ENODEV; + + dev = ep->dev; + + /* 'ep0' IN and OUT are reserved */ + if (ep == &dev->epo[0] || ep == &dev->epi[0]) + return -EINVAL; + + if (dev->ep0state == GR_EP0_SUSPEND) + return -EBUSY; + + dev_dbg(ep->dev->dev, "EP: disable %s\n", ep->ep.name); + + spin_lock_irqsave(&dev->lock, flags); + + gr_ep_nuke(ep); + gr_ep_reset(ep); + ep->ep.desc = NULL; + + spin_unlock_irqrestore(&dev->lock, flags); + + return 0; +} + +/* + * Frees a request, but not any DMA buffers associated with it + * (gr_finish_request should already have taken care of that). + */ +static void gr_free_request(struct usb_ep *_ep, struct usb_request *_req) +{ + struct gr_request *req; + + if (!_ep || !_req) + return; + req = container_of(_req, struct gr_request, req); + + /* Leads to memory leak */ + WARN(!list_empty(&req->queue), + "request not dequeued properly before freeing\n"); + + kfree(req); +} + +/* Queue a request from the gadget */ +static int gr_queue_ext(struct usb_ep *_ep, struct usb_request *_req, + gfp_t gfp_flags) +{ + struct gr_ep *ep; + struct gr_request *req; + struct gr_udc *dev; + int ret; + + if (unlikely(!_ep || !_req)) + return -EINVAL; + + ep = container_of(_ep, struct gr_ep, ep); + req = container_of(_req, struct gr_request, req); + dev = ep->dev; + + spin_lock(&ep->dev->lock); + + /* + * The ep0 pointer in the gadget struct is used both for ep0in and + * ep0out. In a data stage in the out direction ep0out needs to be used + * instead of the default ep0in. Completion functions might use + * driver_data, so that needs to be copied as well. + */ + if ((ep == &dev->epi[0]) && (dev->ep0state == GR_EP0_ODATA)) { + ep = &dev->epo[0]; + ep->ep.driver_data = dev->epi[0].ep.driver_data; + } + + if (ep->is_in) + gr_dbgprint_request("EXTERN", ep, req); + + ret = gr_queue(ep, req, gfp_flags); + + spin_unlock(&ep->dev->lock); + + return ret; +} + +/* Dequeue JUST ONE request */ +static int gr_dequeue(struct usb_ep *_ep, struct usb_request *_req) +{ + struct gr_request *req; + struct gr_ep *ep; + struct gr_udc *dev; + int ret = 0; + unsigned long flags; + + ep = container_of(_ep, struct gr_ep, ep); + if (!_ep || !_req || (!ep->ep.desc && ep->num != 0)) + return -EINVAL; + dev = ep->dev; + if (!dev->driver) + return -ESHUTDOWN; + + /* We can't touch (DMA) registers when suspended */ + if (dev->ep0state == GR_EP0_SUSPEND) + return -EBUSY; + + spin_lock_irqsave(&dev->lock, flags); + + /* Make sure it's actually queued on this endpoint */ + list_for_each_entry(req, &ep->queue, queue) { + if (&req->req == _req) + break; + } + if (&req->req != _req) { + ret = -EINVAL; + goto out; + } + + if (list_first_entry(&ep->queue, struct gr_request, queue) == req) { + /* This request is currently being processed */ + gr_abort_dma(ep); + if (ep->stopped) + gr_finish_request(ep, req, -ECONNRESET); + else + gr_dma_advance(ep, -ECONNRESET); + } else if (!list_empty(&req->queue)) { + /* Not being processed - gr_finish_request dequeues it */ + gr_finish_request(ep, req, -ECONNRESET); + } else { + ret = -EOPNOTSUPP; + } + +out: + spin_unlock_irqrestore(&dev->lock, flags); + + return ret; +} + +/* Helper for gr_set_halt and gr_set_wedge */ +static int gr_set_halt_wedge(struct usb_ep *_ep, int halt, int wedge) +{ + int ret; + struct gr_ep *ep; + + if (!_ep) + return -ENODEV; + ep = container_of(_ep, struct gr_ep, ep); + + spin_lock(&ep->dev->lock); + + /* Halting an IN endpoint should fail if queue is not empty */ + if (halt && ep->is_in && !list_empty(&ep->queue)) { + ret = -EAGAIN; + goto out; + } + + ret = gr_ep_halt_wedge(ep, halt, wedge, 0); + +out: + spin_unlock(&ep->dev->lock); + + return ret; +} + +/* Halt endpoint */ +static int gr_set_halt(struct usb_ep *_ep, int halt) +{ + return gr_set_halt_wedge(_ep, halt, 0); +} + +/* Halt and wedge endpoint */ +static int gr_set_wedge(struct usb_ep *_ep) +{ + return gr_set_halt_wedge(_ep, 1, 1); +} + +/* + * Return the total number of bytes currently stored in the internal buffers of + * the endpoint. + */ +static int gr_fifo_status(struct usb_ep *_ep) +{ + struct gr_ep *ep; + u32 epstat; + u32 bytes = 0; + + if (!_ep) + return -ENODEV; + ep = container_of(_ep, struct gr_ep, ep); + + epstat = gr_read32(&ep->regs->epstat); + + if (epstat & GR_EPSTAT_B0) + bytes += (epstat & GR_EPSTAT_B0CNT_MASK) >> GR_EPSTAT_B0CNT_POS; + if (epstat & GR_EPSTAT_B1) + bytes += (epstat & GR_EPSTAT_B1CNT_MASK) >> GR_EPSTAT_B1CNT_POS; + + return bytes; +} + + +/* Empty data from internal buffers of an endpoint. */ +static void gr_fifo_flush(struct usb_ep *_ep) +{ + struct gr_ep *ep; + u32 epctrl; + + if (!_ep) + return; + ep = container_of(_ep, struct gr_ep, ep); + dev_vdbg(ep->dev->dev, "EP: flush fifo %s\n", ep->ep.name); + + spin_lock(&ep->dev->lock); + + epctrl = gr_read32(&ep->regs->epctrl); + epctrl |= GR_EPCTRL_CB; + gr_write32(&ep->regs->epctrl, epctrl); + + spin_unlock(&ep->dev->lock); +} + +static struct usb_ep_ops gr_ep_ops = { + .enable = gr_ep_enable, + .disable = gr_ep_disable, + + .alloc_request = gr_alloc_request, + .free_request = gr_free_request, + + .queue = gr_queue_ext, + .dequeue = gr_dequeue, + + .set_halt = gr_set_halt, + .set_wedge = gr_set_wedge, + .fifo_status = gr_fifo_status, + .fifo_flush = gr_fifo_flush, +}; + +/* ---------------------------------------------------------------------- */ +/* USB Gadget ops */ + +static int gr_get_frame(struct usb_gadget *_gadget) +{ + struct gr_udc *dev; + + if (!_gadget) + return -ENODEV; + dev = container_of(_gadget, struct gr_udc, gadget); + return gr_read32(&dev->regs->status) & GR_STATUS_FN_MASK; +} + +static int gr_wakeup(struct usb_gadget *_gadget) +{ + struct gr_udc *dev; + + if (!_gadget) + return -ENODEV; + dev = container_of(_gadget, struct gr_udc, gadget); + + /* Remote wakeup feature not enabled by host*/ + if (!dev->remote_wakeup) + return -EINVAL; + + spin_lock(&dev->lock); + + gr_write32(&dev->regs->control, + gr_read32(&dev->regs->control) | GR_CONTROL_RW); + + spin_unlock(&dev->lock); + + return 0; +} + +static int gr_pullup(struct usb_gadget *_gadget, int is_on) +{ + struct gr_udc *dev; + u32 control; + + if (!_gadget) + return -ENODEV; + dev = container_of(_gadget, struct gr_udc, gadget); + + spin_lock(&dev->lock); + + control = gr_read32(&dev->regs->control); + if (is_on) + control |= GR_CONTROL_EP; + else + control &= ~GR_CONTROL_EP; + gr_write32(&dev->regs->control, control); + + spin_unlock(&dev->lock); + + return 0; +} + +static int gr_udc_start(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + struct gr_udc *dev = to_gr_udc(gadget); + + spin_lock(&dev->lock); + + /* Hook up the driver */ + driver->driver.bus = NULL; + dev->driver = driver; + + /* Get ready for host detection */ + gr_enable_vbus_detect(dev); + + spin_unlock(&dev->lock); + + dev_info(dev->dev, "Started with gadget driver '%s'\n", + driver->driver.name); + + return 0; +} + +static int gr_udc_stop(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + struct gr_udc *dev = to_gr_udc(gadget); + unsigned long flags; + + spin_lock_irqsave(&dev->lock, flags); + + dev->driver = NULL; + gr_stop_activity(dev); + + spin_unlock_irqrestore(&dev->lock, flags); + + dev_info(dev->dev, "Stopped\n"); + + return 0; +} + +static const struct usb_gadget_ops gr_ops = { + .get_frame = gr_get_frame, + .wakeup = gr_wakeup, + .pullup = gr_pullup, + .udc_start = gr_udc_start, + .udc_stop = gr_udc_stop, + /* Other operations not supported */ +}; + +/* ---------------------------------------------------------------------- */ +/* Module probe, removal and of-matching */ + +static const char * const onames[] = { + "ep0out", "ep1out", "ep2out", "ep3out", "ep4out", "ep5out", + "ep6out", "ep7out", "ep8out", "ep9out", "ep10out", "ep11out", + "ep12out", "ep13out", "ep14out", "ep15out" +}; + +static const char * const inames[] = { + "ep0in", "ep1in", "ep2in", "ep3in", "ep4in", "ep5in", + "ep6in", "ep7in", "ep8in", "ep9in", "ep10in", "ep11in", + "ep12in", "ep13in", "ep14in", "ep15in" +}; + +/* Must be called with dev->lock held */ +static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit) +{ + struct gr_ep *ep; + struct gr_request *req; + struct usb_request *_req; + void *buf; + + if (is_in) { + ep = &dev->epi[num]; + ep->ep.name = inames[num]; + ep->regs = &dev->regs->epi[num]; + } else { + ep = &dev->epo[num]; + ep->ep.name = onames[num]; + ep->regs = &dev->regs->epo[num]; + } + + gr_ep_reset(ep); + ep->num = num; + ep->is_in = is_in; + ep->dev = dev; + ep->ep.ops = &gr_ep_ops; + INIT_LIST_HEAD(&ep->queue); + + if (num == 0) { + _req = gr_alloc_request(&ep->ep, GFP_KERNEL); + buf = devm_kzalloc(dev->dev, PAGE_SIZE, GFP_DMA | GFP_KERNEL); + if (!_req || !buf) { + /* possible _req freed by gr_probe via gr_remove */ + return -ENOMEM; + } + + req = container_of(_req, struct gr_request, req); + req->req.buf = buf; + req->req.length = MAX_CTRL_PL_SIZE; + + if (is_in) + dev->ep0reqi = req; /* Complete gets set as used */ + else + dev->ep0reqo = req; /* Completion treated separately */ + + usb_ep_set_maxpacket_limit(&ep->ep, MAX_CTRL_PL_SIZE); + ep->bytes_per_buffer = MAX_CTRL_PL_SIZE; + } else { + usb_ep_set_maxpacket_limit(&ep->ep, (u16)maxplimit); + list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list); + } + list_add_tail(&ep->ep_list, &dev->ep_list); + + return 0; +} + +/* Must be called with dev->lock held */ +static int gr_udc_init(struct gr_udc *dev) +{ + struct device_node *np = dev->dev->of_node; + u32 epctrl_val; + u32 dmactrl_val; + int i; + int ret = 0; + u32 *bufsizes; + u32 bufsize; + int len; + + gr_set_address(dev, 0); + + INIT_LIST_HEAD(&dev->gadget.ep_list); + dev->gadget.speed = USB_SPEED_UNKNOWN; + dev->gadget.ep0 = &dev->epi[0].ep; + + INIT_LIST_HEAD(&dev->ep_list); + gr_set_ep0state(dev, GR_EP0_DISCONNECT); + + bufsizes = (u32 *)of_get_property(np, "epobufsizes", &len); + len /= sizeof(u32); + for (i = 0; i < dev->nepo; i++) { + bufsize = (bufsizes && i < len) ? bufsizes[i] : 1024; + ret = gr_ep_init(dev, i, 0, bufsize); + if (ret) + return ret; + } + + bufsizes = (u32 *)of_get_property(np, "epibufsizes", &len); + len /= sizeof(u32); + for (i = 0; i < dev->nepi; i++) { + bufsize = (bufsizes && i < len) ? bufsizes[i] : 1024; + ret = gr_ep_init(dev, i, 1, bufsize); + if (ret) + return ret; + } + + /* Must be disabled by default */ + dev->remote_wakeup = 0; + + /* Enable ep0out and ep0in */ + epctrl_val = (MAX_CTRL_PL_SIZE << GR_EPCTRL_MAXPL_POS) | GR_EPCTRL_EV; + dmactrl_val = GR_DMACTRL_IE | GR_DMACTRL_AI; + gr_write32(&dev->epo[0].regs->epctrl, epctrl_val); + gr_write32(&dev->epi[0].regs->epctrl, epctrl_val | GR_EPCTRL_PI); + gr_write32(&dev->epo[0].regs->dmactrl, dmactrl_val); + gr_write32(&dev->epi[0].regs->dmactrl, dmactrl_val); + + return 0; +} + +static int gr_remove(struct platform_device *ofdev) +{ + struct gr_udc *dev = dev_get_drvdata(&ofdev->dev); + + if (dev->added) + usb_del_gadget_udc(&dev->gadget); /* Shuts everything down */ + if (dev->driver) + return -EBUSY; + + gr_dfs_delete(dev); + if (dev->desc_pool) + dma_pool_destroy(dev->desc_pool); + dev_set_drvdata(&ofdev->dev, NULL); + + gr_free_request(&dev->epi[0].ep, &dev->ep0reqi->req); + gr_free_request(&dev->epo[0].ep, &dev->ep0reqo->req); + + return 0; +} +static int gr_request_irq(struct gr_udc *dev, int irq) +{ + return devm_request_threaded_irq(dev->dev, irq, gr_irq, gr_irq_handler, + IRQF_SHARED, driver_name, dev); +} + +static int gr_probe(struct platform_device *ofdev) +{ + struct gr_udc *dev; + struct resource *res; + struct gr_regs __iomem *regs; + int retval; + u32 status; + + dev = devm_kzalloc(&ofdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + dev->dev = &ofdev->dev; + + res = platform_get_resource(ofdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(dev->dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + dev->irq = irq_of_parse_and_map(dev->dev->of_node, 0); + if (!dev->irq) { + dev_err(dev->dev, "No irq found\n"); + return -ENODEV; + } + + /* Some core configurations has separate irqs for IN and OUT events */ + dev->irqi = irq_of_parse_and_map(dev->dev->of_node, 1); + if (dev->irqi) { + dev->irqo = irq_of_parse_and_map(dev->dev->of_node, 2); + if (!dev->irqo) { + dev_err(dev->dev, "Found irqi but not irqo\n"); + return -ENODEV; + } + } + + dev->gadget.name = driver_name; + dev->gadget.max_speed = USB_SPEED_HIGH; + dev->gadget.ops = &gr_ops; + dev->gadget.quirk_ep_out_aligned_size = true; + + spin_lock_init(&dev->lock); + dev->regs = regs; + + dev_set_drvdata(&ofdev->dev, dev); + + /* Determine number of endpoints and data interface mode */ + status = gr_read32(&dev->regs->status); + dev->nepi = ((status & GR_STATUS_NEPI_MASK) >> GR_STATUS_NEPI_POS) + 1; + dev->nepo = ((status & GR_STATUS_NEPO_MASK) >> GR_STATUS_NEPO_POS) + 1; + + if (!(status & GR_STATUS_DM)) { + dev_err(dev->dev, "Slave mode cores are not supported\n"); + return -ENODEV; + } + + /* --- Effects of the following calls might need explicit cleanup --- */ + + /* Create DMA pool for descriptors */ + dev->desc_pool = dma_pool_create("desc_pool", dev->dev, + sizeof(struct gr_dma_desc), 4, 0); + if (!dev->desc_pool) { + dev_err(dev->dev, "Could not allocate DMA pool"); + return -ENOMEM; + } + + spin_lock(&dev->lock); + + /* Inside lock so that no gadget can use this udc until probe is done */ + retval = usb_add_gadget_udc(dev->dev, &dev->gadget); + if (retval) { + dev_err(dev->dev, "Could not add gadget udc"); + goto out; + } + dev->added = 1; + + retval = gr_udc_init(dev); + if (retval) + goto out; + + gr_dfs_create(dev); + + /* Clear all interrupt enables that might be left on since last boot */ + gr_disable_interrupts_and_pullup(dev); + + retval = gr_request_irq(dev, dev->irq); + if (retval) { + dev_err(dev->dev, "Failed to request irq %d\n", dev->irq); + goto out; + } + + if (dev->irqi) { + retval = gr_request_irq(dev, dev->irqi); + if (retval) { + dev_err(dev->dev, "Failed to request irqi %d\n", + dev->irqi); + goto out; + } + retval = gr_request_irq(dev, dev->irqo); + if (retval) { + dev_err(dev->dev, "Failed to request irqo %d\n", + dev->irqo); + goto out; + } + } + + if (dev->irqi) + dev_info(dev->dev, "regs: %p, irqs %d, %d, %d\n", dev->regs, + dev->irq, dev->irqi, dev->irqo); + else + dev_info(dev->dev, "regs: %p, irq %d\n", dev->regs, dev->irq); + +out: + spin_unlock(&dev->lock); + + if (retval) + gr_remove(ofdev); + + return retval; +} + +static struct of_device_id gr_match[] = { + {.name = "GAISLER_USBDC"}, + {.name = "01_021"}, + {}, +}; +MODULE_DEVICE_TABLE(of, gr_match); + +static struct platform_driver gr_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = gr_match, + }, + .probe = gr_probe, + .remove = gr_remove, +}; +module_platform_driver(gr_driver); + +MODULE_AUTHOR("Aeroflex Gaisler AB."); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/gr_udc.h b/drivers/usb/gadget/gr_udc.h new file mode 100644 index 0000000..8388897 --- /dev/null +++ b/drivers/usb/gadget/gr_udc.h @@ -0,0 +1,220 @@ +/* + * USB Peripheral Controller driver for Aeroflex Gaisler GRUSBDC. + * + * 2013 (c) Aeroflex Gaisler AB + * + * This driver supports GRUSBDC USB Device Controller cores available in the + * GRLIB VHDL IP core library. + * + * Full documentation of the GRUSBDC core can be found here: + * http://www.gaisler.com/products/grlib/grip.pdf + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Contributors: + * - Andreas Larsson + * - Marko Isomaki + */ + +/* Control registers on the AMBA bus */ + +#define GR_MAXEP 16 /* Max # endpoints for *each* direction */ + +struct gr_epregs { + u32 epctrl; + union { + struct { /* Slave mode*/ + u32 slvctrl; + u32 slvdata; + }; + struct { /* DMA mode*/ + u32 dmactrl; + u32 dmaaddr; + }; + }; + u32 epstat; +}; + +struct gr_regs { + struct gr_epregs epo[GR_MAXEP]; /* 0x000 - 0x0fc */ + struct gr_epregs epi[GR_MAXEP]; /* 0x100 - 0x1fc */ + u32 control; /* 0x200 */ + u32 status; /* 0x204 */ +}; + +#define GR_EPCTRL_BUFSZ_SCALER 8 +#define GR_EPCTRL_BUFSZ_MASK 0xffe00000 +#define GR_EPCTRL_BUFSZ_POS 21 +#define GR_EPCTRL_PI BIT(20) +#define GR_EPCTRL_CB BIT(19) +#define GR_EPCTRL_CS BIT(18) +#define GR_EPCTRL_MAXPL_MASK 0x0003ff80 +#define GR_EPCTRL_MAXPL_POS 7 +#define GR_EPCTRL_NT_MASK 0x00000060 +#define GR_EPCTRL_NT_POS 5 +#define GR_EPCTRL_TT_MASK 0x00000018 +#define GR_EPCTRL_TT_POS 3 +#define GR_EPCTRL_EH BIT(2) +#define GR_EPCTRL_ED BIT(1) +#define GR_EPCTRL_EV BIT(0) + +#define GR_DMACTRL_AE BIT(10) +#define GR_DMACTRL_AD BIT(3) +#define GR_DMACTRL_AI BIT(2) +#define GR_DMACTRL_IE BIT(1) +#define GR_DMACTRL_DA BIT(0) + +#define GR_EPSTAT_PT BIT(29) +#define GR_EPSTAT_PR BIT(29) +#define GR_EPSTAT_B1CNT_MASK 0x1fff0000 +#define GR_EPSTAT_B1CNT_POS 16 +#define GR_EPSTAT_B0CNT_MASK 0x0000fff8 +#define GR_EPSTAT_B0CNT_POS 3 +#define GR_EPSTAT_B1 BIT(2) +#define GR_EPSTAT_B0 BIT(1) +#define GR_EPSTAT_BS BIT(0) + +#define GR_CONTROL_SI BIT(31) +#define GR_CONTROL_UI BIT(30) +#define GR_CONTROL_VI BIT(29) +#define GR_CONTROL_SP BIT(28) +#define GR_CONTROL_FI BIT(27) +#define GR_CONTROL_EP BIT(14) +#define GR_CONTROL_DH BIT(13) +#define GR_CONTROL_RW BIT(12) +#define GR_CONTROL_TS_MASK 0x00000e00 +#define GR_CONTROL_TS_POS 9 +#define GR_CONTROL_TM BIT(8) +#define GR_CONTROL_UA_MASK 0x000000fe +#define GR_CONTROL_UA_POS 1 +#define GR_CONTROL_SU BIT(0) + +#define GR_STATUS_NEPI_MASK 0xf0000000 +#define GR_STATUS_NEPI_POS 28 +#define GR_STATUS_NEPO_MASK 0x0f000000 +#define GR_STATUS_NEPO_POS 24 +#define GR_STATUS_DM BIT(23) +#define GR_STATUS_SU BIT(17) +#define GR_STATUS_UR BIT(16) +#define GR_STATUS_VB BIT(15) +#define GR_STATUS_SP BIT(14) +#define GR_STATUS_AF_MASK 0x00003800 +#define GR_STATUS_AF_POS 11 +#define GR_STATUS_FN_MASK 0x000007ff +#define GR_STATUS_FN_POS 0 + + +#define MAX_CTRL_PL_SIZE 64 /* As per USB standard for full and high speed */ + +/*-------------------------------------------------------------------------*/ + +/* Driver data structures and utilities */ + +struct gr_dma_desc { + u32 ctrl; + u32 data; + u32 next; + + /* These must be last because hw uses the previous three */ + u32 paddr; + struct gr_dma_desc *next_desc; +}; + +#define GR_DESC_OUT_CTRL_SE BIT(17) +#define GR_DESC_OUT_CTRL_IE BIT(15) +#define GR_DESC_OUT_CTRL_NX BIT(14) +#define GR_DESC_OUT_CTRL_EN BIT(13) +#define GR_DESC_OUT_CTRL_LEN_MASK 0x00001fff + +#define GR_DESC_IN_CTRL_MO BIT(18) +#define GR_DESC_IN_CTRL_PI BIT(17) +#define GR_DESC_IN_CTRL_ML BIT(16) +#define GR_DESC_IN_CTRL_IE BIT(15) +#define GR_DESC_IN_CTRL_NX BIT(14) +#define GR_DESC_IN_CTRL_EN BIT(13) +#define GR_DESC_IN_CTRL_LEN_MASK 0x00001fff + +#define GR_DESC_DMAADDR_MASK 0xfffffffc + +struct gr_ep { + struct usb_ep ep; + struct gr_udc *dev; + u16 bytes_per_buffer; + unsigned int dma_start; + struct gr_epregs __iomem *regs; + + unsigned num:8; + unsigned is_in:1; + unsigned stopped:1; + unsigned wedged:1; + unsigned callback:1; + + /* analogous to a host-side qh */ + struct list_head queue; + + struct list_head ep_list; +}; + +struct gr_request { + struct usb_request req; + struct list_head queue; + + /* Chain of dma descriptors */ + struct gr_dma_desc *first_desc; /* First in the chain */ + struct gr_dma_desc *curr_desc; /* Current descriptor */ + struct gr_dma_desc *last_desc; /* Last in the chain */ + + u8 setup; /* Setup packet */ +}; + +enum gr_ep0state { + GR_EP0_DISCONNECT = 0, /* No host */ + GR_EP0_SETUP, /* Between STATUS ack and SETUP report */ + GR_EP0_IDATA, /* IN data stage */ + GR_EP0_ODATA, /* OUT data stage */ + GR_EP0_ISTATUS, /* Status stage after IN data stage */ + GR_EP0_OSTATUS, /* Status stage after OUT data stage */ + GR_EP0_STALL, /* Data or status stages */ + GR_EP0_SUSPEND, /* USB suspend */ +}; + +struct gr_udc { + struct usb_gadget gadget; + struct gr_ep epi[GR_MAXEP]; + struct gr_ep epo[GR_MAXEP]; + struct usb_gadget_driver *driver; + struct dma_pool *desc_pool; + struct device *dev; + + enum gr_ep0state ep0state; + struct gr_request *ep0reqo; + struct gr_request *ep0reqi; + + struct gr_regs __iomem *regs; + int irq; + int irqi; + int irqo; + + unsigned added:1; + unsigned irq_enabled:1; + unsigned remote_wakeup:1; + + u8 test_mode; + + enum usb_device_state suspended_from; + + unsigned int nepi; + unsigned int nepo; + + struct list_head ep_list; + + spinlock_t lock; /* General lock, a.k.a. "dev->lock" in comments */ + + struct dentry *dfs_root; + struct dentry *dfs_state; +}; + +#define to_gr_udc(gadget) (container_of((gadget), struct gr_udc, gadget)) -- cgit v0.10.2 From 4685d021f5cd04bd2682bd4db6dfa9f784fabf9f Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 23 Dec 2013 19:28:17 -0600 Subject: usb: gadget: at91_udc: fix build warning commit e117e742 (usb: gadget: add "maxpacket_limit" field to struct usb_ep) added a build warning to at91_udc when it passed the wrong argument to usb_ep_set_maxpacket_limit(). Fix this by passing correct argument. Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 0353b64..c3f49fd 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1759,15 +1759,15 @@ static int at91udc_probe(struct platform_device *pdev) /* newer chips have more FIFO memory than rm9200 */ if (cpu_is_at91sam9260() || cpu_is_at91sam9g20()) { - usb_ep_set_maxpacket_limit(&udc->ep[0], 64); - usb_ep_set_maxpacket_limit(&udc->ep[3], 64); - usb_ep_set_maxpacket_limit(&udc->ep[4], 512); - usb_ep_set_maxpacket_limit(&udc->ep[5], 512); + usb_ep_set_maxpacket_limit(&udc->ep[0].ep, 64); + usb_ep_set_maxpacket_limit(&udc->ep[3].ep, 64); + usb_ep_set_maxpacket_limit(&udc->ep[4].ep, 512); + usb_ep_set_maxpacket_limit(&udc->ep[5].ep, 512); } else if (cpu_is_at91sam9261() || cpu_is_at91sam9g10()) { - usb_ep_set_maxpacket_limit(&udc->ep[3], 64); + usb_ep_set_maxpacket_limit(&udc->ep[3].ep, 64); } else if (cpu_is_at91sam9263()) { - usb_ep_set_maxpacket_limit(&udc->ep[0], 64); - usb_ep_set_maxpacket_limit(&udc->ep[3], 64); + usb_ep_set_maxpacket_limit(&udc->ep[0].ep, 64); + usb_ep_set_maxpacket_limit(&udc->ep[3].ep, 64); } udc->udp_baseaddr = ioremap(res->start, resource_size(res)); -- cgit v0.10.2 From 89f836a8c56bfea6585a09f7afff7094968a4fd0 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Thu, 26 Dec 2013 09:24:52 -0300 Subject: usb: musb: Remove usb_disable() check in module_init() Removing the check to usb_disable() before registering the platform driver allows to build this driver when !USB && USB_GADGET, to be used in gadget-only mode. Also, use module_platform_driver() to register the platform driver. Signed-off-by: Ezequiel Garcia Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 0e7f4a0..5942f00 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -2325,19 +2325,4 @@ static struct platform_driver musb_driver = { .shutdown = musb_shutdown, }; -/*-------------------------------------------------------------------------*/ - -static int __init musb_init(void) -{ - if (usb_disabled()) - return 0; - - return platform_driver_register(&musb_driver); -} -module_init(musb_init); - -static void __exit musb_cleanup(void) -{ - platform_driver_unregister(&musb_driver); -} -module_exit(musb_cleanup); +module_platform_driver(musb_driver); -- cgit v0.10.2 From 836a2164491b19dcd4f29d574e548bcadd421a6a Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 24 Dec 2013 19:37:27 +0800 Subject: usb: phy: keystone: remove redundant return value check of platform_get_resource() Remove unneeded error handling on the result of a call to platform_get_resource() when the value is passed to devm_ioremap_resource(). Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c index ee1d03b..d762003 100644 --- a/drivers/usb/phy/phy-keystone.c +++ b/drivers/usb/phy/phy-keystone.c @@ -83,11 +83,6 @@ static int keystone_usbphy_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "missing usb phy resource\n"); - return -EINVAL; - } - k_phy->phy_ctrl = devm_ioremap_resource(dev, res); if (IS_ERR(k_phy->phy_ctrl)) return PTR_ERR(k_phy->phy_ctrl); -- cgit v0.10.2 From 623c8263376c0b8a4b0c220232e7313d762cd0cc Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:53 +0100 Subject: USB: pl2303: fix data corruption on termios updates MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some PL2303 devices are known to lose bytes if you change serial settings even to the same values as before. Avoid this by comparing the encoded settings with the previsouly used ones before configuring the device. The common case was fixed by commit bf5e5834bffc6 ("pl2303: Fix mode switching regression"), but this problem was still possible to trigger, for instance, by using the TCSETS2-interface to repeatedly request 115201 baud, which gets mapped to 115200 and thus always triggers a settings update. Cc: Frank Schäfer Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 1e3318d..beb8edc 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -142,6 +142,8 @@ struct pl2303_private { spinlock_t lock; u8 line_control; u8 line_status; + + u8 line_settings[7]; }; static int pl2303_vendor_read(__u16 value, __u16 index, @@ -339,11 +341,6 @@ static void pl2303_set_termios(struct tty_struct *tty, int i; u8 control; - /* - * The PL2303 is reported to lose bytes if you change serial settings - * even to the same values as before. Thus we actually need to filter - * in this specific case. - */ if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios)) return; @@ -428,10 +425,29 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "parity = none\n"); } - i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - dev_dbg(&port->dev, "0x21:0x20:0:0 %d\n", i); + /* + * Some PL2303 are known to lose bytes if you change serial settings + * even to the same values as before. Thus we actually need to filter + * in this specific case. + * + * Note that the tty_termios_hw_change check above is not sufficient + * as a previously requested baud rate may differ from the one + * actually used (and stored in old_termios). + * + * NOTE: No additional locking needed for line_settings as it is + * only used in set_termios, which is serialised against itself. + */ + if (!old_termios || memcmp(buf, priv->line_settings, 7)) { + i = usb_control_msg(serial->dev, + usb_sndctrlpipe(serial->dev, 0), + SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + + dev_dbg(&port->dev, "0x21:0x20:0:0 %d\n", i); + + if (i == 7) + memcpy(priv->line_settings, buf, 7); + } /* change control lines if we are switching to or from B0 */ spin_lock_irqsave(&priv->lock, flags); -- cgit v0.10.2 From 5c6b98dd0437ba8c1b515bf11357784335613d65 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:54 +0100 Subject: USB: serial: constify device-id tables Declare device-id tables as const where possible. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index fb0d5374..2e5cf73 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -145,7 +145,7 @@ static struct ftdi_sio_quirk ftdi_8u2232c_quirk = { * Device ID not listed? Test it using * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report. */ -static struct usb_device_id id_table_combined [] = { +static const struct usb_device_id id_table_combined[] = { { USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) }, { USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) }, { USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) }, diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 76c9a84..3754bc3 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -37,7 +37,7 @@ static int ipaq_open(struct tty_struct *tty, static int ipaq_calc_num_ports(struct usb_serial *serial); static int ipaq_startup(struct usb_serial *serial); -static struct usb_device_id ipaq_id_table [] = { +static const struct usb_device_id ipaq_id_table[] = { { USB_DEVICE(0x0104, 0x00BE) }, /* Socket USB Sync */ { USB_DEVICE(0x03F0, 0x1016) }, /* HP USB Sync */ { USB_DEVICE(0x03F0, 0x1116) }, /* HP USB Sync 1611 */ diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 2b648c4..6df2e44 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -43,7 +43,7 @@ struct metrousb_private { }; /* Device table list. */ -static struct usb_device_id id_table[] = { +static const struct usb_device_id id_table[] = { { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) }, { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) }, { }, /* Terminating entry. */ diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c index 31f81c3..0a5883f 100644 --- a/drivers/usb/serial/qcaux.c +++ b/drivers/usb/serial/qcaux.c @@ -54,7 +54,7 @@ #define SAMSUNG_VENDOR_ID 0x04e8 #define SAMSUNG_PRODUCT_U520 0x6640 /* SCH-U520 */ -static struct usb_device_id id_table[] = { +static const struct usb_device_id id_table[] = { { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5740, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5750, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_UM150, 0xff, 0x00, 0x00) }, diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index ba89598..d0e602a 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -125,7 +125,7 @@ MODULE_PARM_DESC(padded, "Pad to full wMaxPacketSize On/Off"); .bInterfaceClass = (ic), \ .bInterfaceSubClass = (isc), -static struct usb_device_id id_table[] = { +static const struct usb_device_id id_table[] = { {MY_USB_DEVICE(0x49f, 0xffff, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, /* Itsy */ {MY_USB_DEVICE(0x3f0, 0x2101, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, /* Calypso */ {MY_USB_DEVICE(0x4dd, 0x8001, CDC_DEVICE_CLASS, LINEO_INTERFACE_CLASS, LINEO_INTERFACE_SUBCLASS_SAFESERIAL)}, /* Iris */ diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index c9a3569..8718809 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -143,7 +143,7 @@ static int ti_download_firmware(struct ti_device *tdev); static int closing_wait = TI_DEFAULT_CLOSING_WAIT; /* supported devices */ -static struct usb_device_id ti_id_table_3410[] = { +static const struct usb_device_id ti_id_table_3410[] = { { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, @@ -163,7 +163,7 @@ static struct usb_device_id ti_id_table_3410[] = { { } /* terminator */ }; -static struct usb_device_id ti_id_table_5052[] = { +static const struct usb_device_id ti_id_table_5052[] = { { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, @@ -171,7 +171,7 @@ static struct usb_device_id ti_id_table_5052[] = { { } /* terminator */ }; -static struct usb_device_id ti_id_table_combined[] = { +static const struct usb_device_id ti_id_table_combined[] = { { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 9910aa2..ae01643 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -51,7 +51,7 @@ static int palm_os_3_probe(struct usb_serial *serial, static int palm_os_4_probe(struct usb_serial *serial, const struct usb_device_id *id); -static struct usb_device_id id_table [] = { +static const struct usb_device_id id_table[] = { { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID), .driver_info = (kernel_ulong_t)&palm_os_3_probe }, { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID), @@ -113,18 +113,18 @@ static struct usb_device_id id_table [] = { { } /* Terminating entry */ }; -static struct usb_device_id clie_id_5_table [] = { +static const struct usb_device_id clie_id_5_table[] = { { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID), .driver_info = (kernel_ulong_t)&palm_os_4_probe }, { } /* Terminating entry */ }; -static struct usb_device_id clie_id_3_5_table [] = { +static const struct usb_device_id clie_id_3_5_table[] = { { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) }, { } /* Terminating entry */ }; -static struct usb_device_id id_table_combined [] = { +static const struct usb_device_id id_table_combined[] = { { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) }, { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) }, { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) }, -- cgit v0.10.2 From 4d5147ec90531d11e7677e2c38941fc18e160641 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:55 +0100 Subject: USB: serial: clean up ioctl debugging Remove redundant ioctl debugging from subdrivers. The ioctl request code has already been logged by usb-serial core. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 639a18f..aeb2edc 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -287,8 +287,6 @@ static int f81232_ioctl(struct tty_struct *tty, struct serial_struct ser; struct usb_serial_port *port = tty->driver_data; - dev_dbg(&port->dev, "%s cmd = 0x%04x\n", __func__, cmd); - switch (cmd) { case TIOCGSERIAL: memset(&ser, 0, sizeof ser); @@ -302,8 +300,6 @@ static int f81232_ioctl(struct tty_struct *tty, return 0; default: - dev_dbg(&port->dev, "%s not supported = 0x%04x\n", - __func__, cmd); break; } return -ENOIOCTLCMD; diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 2e5cf73..b3f712f 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -2383,8 +2383,6 @@ static int ftdi_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; - dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd); - /* Based on code from acm.c and others */ switch (cmd) { @@ -2401,11 +2399,7 @@ static int ftdi_ioctl(struct tty_struct *tty, default: break; } - /* This is not necessarily an error - turns out the higher layers - * will do some ioctls themselves (see comment above) - */ - dev_dbg(&port->dev, "%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h\n", - __func__, cmd); + return -ENOIOCTLCMD; } diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index c91481d..9c79fb2 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -1593,8 +1593,6 @@ static int edge_ioctl(struct tty_struct *tty, DEFINE_WAIT(wait); struct edgeport_port *edge_port = usb_get_serial_port_data(port); - dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); - switch (cmd) { case TIOCSERGETLSR: dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__); diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index b7187bf..2b3b7bf 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2362,8 +2362,6 @@ static int edge_ioctl(struct tty_struct *tty, struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); - switch (cmd) { case TIOCGSERIAL: dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 439c951..b739a17 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1885,8 +1885,6 @@ static int mos7720_ioctl(struct tty_struct *tty, if (mos7720_port == NULL) return -ENODEV; - dev_dbg(&port->dev, "%s - cmd = 0x%x", __func__, cmd); - switch (cmd) { case TIOCSERGETLSR: dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__); diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index a69da83..bc176ae 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2070,8 +2070,6 @@ static int mos7840_ioctl(struct tty_struct *tty, if (mos7840_port == NULL) return -1; - dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); - switch (cmd) { /* return number of bytes available */ diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index cbe779f..1b4f1d2 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -367,8 +367,6 @@ static int opticon_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; - dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); - switch (cmd) { case TIOCGSERIAL: return get_serial_info(port, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index beb8edc..9a7dfa3 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -648,8 +648,6 @@ static int pl2303_ioctl(struct tty_struct *tty, struct serial_struct ser; struct usb_serial_port *port = tty->driver_data; - dev_dbg(&port->dev, "%s cmd = 0x%04x\n", __func__, cmd); - switch (cmd) { case TIOCGSERIAL: memset(&ser, 0, sizeof ser); @@ -663,7 +661,6 @@ static int pl2303_ioctl(struct tty_struct *tty, return 0; default: - dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd); break; } return -ENOIOCTLCMD; diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index e5750be..a6fec95 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -342,8 +342,6 @@ static int ssu100_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; - dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd); - switch (cmd) { case TIOCGSERIAL: return get_serial_info(port, @@ -352,8 +350,6 @@ static int ssu100_ioctl(struct tty_struct *tty, break; } - dev_dbg(&port->dev, "%s arg not supported\n", __func__); - return -ENOIOCTLCMD; } diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 8718809..4a649ed 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -683,8 +683,6 @@ static int ti_ioctl(struct tty_struct *tty, struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); - dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd); - if (tport == NULL) return -ENODEV; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 6091bd5..7c9dc28 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -405,7 +405,7 @@ static int serial_ioctl(struct tty_struct *tty, struct usb_serial_port *port = tty->driver_data; int retval = -ENOIOCTLCMD; - dev_dbg(tty->dev, "%s - cmd 0x%.4x\n", __func__, cmd); + dev_dbg(tty->dev, "%s - cmd 0x%04x\n", __func__, cmd); switch (cmd) { case TIOCMIWAIT: diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 36a7740..d23290e 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -455,8 +455,6 @@ static int whiteheat_ioctl(struct tty_struct *tty, struct serial_struct serstruct; void __user *user_arg = (void __user *)arg; - dev_dbg(&port->dev, "%s - cmd 0x%.4x\n", __func__, cmd); - switch (cmd) { case TIOCGSERIAL: memset(&serstruct, 0, sizeof(serstruct)); -- cgit v0.10.2 From 10c642d0772ac1391ae4f9fdeb13217ab019117a Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:56 +0100 Subject: USB: serial: remove redundant OOM messages Remove redundant error messages on allocation failures, which have already been logged. Cc: Joe Perches Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index c2a4171..8908760 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -384,10 +384,8 @@ static void ch341_break_ctl(struct tty_struct *tty, int break_state) uint8_t *break_reg; break_reg = kmalloc(2, GFP_KERNEL); - if (!break_reg) { - dev_err(&port->dev, "%s - kmalloc failed\n", __func__); + if (!break_reg) return; - } r = ch341_control_in(port->serial->dev, CH341_REQ_READ_REG, ch341_break_reg, 0, break_reg, 2); diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index c69bb50..b5b8dcb 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -135,7 +135,6 @@ static int usb_console_setup(struct console *co, char *options) tty = kzalloc(sizeof(*tty), GFP_KERNEL); if (!tty) { retval = -ENOMEM; - dev_err(&port->dev, "no more memory\n"); goto reset_open_count; } kref_init(&tty->kref); @@ -144,7 +143,6 @@ static int usb_console_setup(struct console *co, char *options) tty->index = co->index; if (tty_init_termios(tty)) { retval = -ENOMEM; - dev_err(&port->dev, "no more memory\n"); goto free_tty; } } diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 6987b53..95fa121 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -305,10 +305,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, length = (((size - 1) | 3) + 1) / 4; buf = kcalloc(length, sizeof(__le32), GFP_KERNEL); - if (!buf) { - dev_err(&port->dev, "%s - out of memory.\n", __func__); + if (!buf) return -ENOMEM; - } /* Issue the request, attempting to read 'size' bytes */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), @@ -352,10 +350,8 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, length = (((size - 1) | 3) + 1) / 4; buf = kmalloc(length * sizeof(__le32), GFP_KERNEL); - if (!buf) { - dev_err(&port->dev, "%s - out of memory.\n", __func__); + if (!buf) return -ENOMEM; - } /* Array of integers into bytes */ for (i = 0; i < length; i++) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b3f712f..a4bebac 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1695,11 +1695,8 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); - if (!priv) { - dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, - sizeof(struct ftdi_private)); + if (!priv) return -ENOMEM; - } mutex_init(&priv->cfg_lock); diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 04b5ed9..f4ee74d 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -279,10 +279,9 @@ static int pkt_add(struct garmin_data *garmin_data_p, if (data_length) { pkt = kmalloc(sizeof(struct garmin_packet)+data_length, GFP_ATOMIC); - if (pkt == NULL) { - dev_err(&garmin_data_p->port->dev, "out of memory\n"); + if (!pkt) return 0; - } + pkt->size = data_length; memcpy(pkt->data, data, data_length); @@ -1006,14 +1005,11 @@ static int garmin_write_bulk(struct usb_serial_port *port, spin_unlock_irqrestore(&garmin_data_p->lock, flags); buffer = kmalloc(count, GFP_ATOMIC); - if (!buffer) { - dev_err(&port->dev, "out of memory\n"); + if (!buffer) return -ENOMEM; - } urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { - dev_err(&port->dev, "no more free urbs\n"); kfree(buffer); return -ENOMEM; } @@ -1393,10 +1389,9 @@ static int garmin_port_probe(struct usb_serial_port *port) struct garmin_data *garmin_data_p; garmin_data_p = kzalloc(sizeof(struct garmin_data), GFP_KERNEL); - if (garmin_data_p == NULL) { - dev_err(&port->dev, "%s - Out of memory\n", __func__); + if (!garmin_data_p) return -ENOMEM; - } + init_timer(&garmin_data_p->timer); spin_lock_init(&garmin_data_p->lock); INIT_LIST_HEAD(&garmin_data_p->pktlist); diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 9c79fb2..0dd8cce 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -898,7 +898,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) edge_port->txfifo.fifo = kmalloc(edge_port->maxTxCredits, GFP_KERNEL); if (!edge_port->txfifo.fifo) { - dev_dbg(dev, "%s - no memory\n", __func__); edge_close(port); return -ENOMEM; } @@ -908,7 +907,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) edge_port->write_in_progress = false; if (!edge_port->write_urb) { - dev_dbg(dev, "%s - no memory\n", __func__); edge_close(port); return -ENOMEM; } @@ -1245,9 +1243,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, to send out */ count = fifo->count; buffer = kmalloc(count+2, GFP_ATOMIC); - if (buffer == NULL) { - dev_err_console(edge_port->port, - "%s - no more kernel memory...\n", __func__); + if (!buffer) { edge_port->write_in_progress = false; goto exit_send; } @@ -2025,11 +2021,8 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, dev_dbg(&serial->dev->dev, "%s - %x, %x, %d\n", __func__, extAddr, addr, length); transfer_buffer = kmalloc(64, GFP_KERNEL); - if (!transfer_buffer) { - dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", - __func__, 64); + if (!transfer_buffer) return -ENOMEM; - } /* need to split these writes up into 64 byte chunks */ result = 0; @@ -2073,11 +2066,8 @@ static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, unsigned char *transfer_buffer; transfer_buffer = kmalloc(64, GFP_KERNEL); - if (!transfer_buffer) { - dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", - __func__, 64); + if (!transfer_buffer) return -ENOMEM; - } /* need to split these writes up into 64 byte chunks */ result = 0; @@ -2119,11 +2109,8 @@ static int rom_read(struct usb_serial *serial, __u16 extAddr, unsigned char *transfer_buffer; transfer_buffer = kmalloc(64, GFP_KERNEL); - if (!transfer_buffer) { - dev_err(&serial->dev->dev, - "%s - kmalloc(%d) failed.\n", __func__, 64); + if (!transfer_buffer) return -ENOMEM; - } /* need to split these reads up into 64 byte chunks */ result = 0; @@ -2163,11 +2150,8 @@ static int send_iosp_ext_cmd(struct edgeport_port *edge_port, int status = 0; buffer = kmalloc(10, GFP_ATOMIC); - if (!buffer) { - dev_err(&edge_port->port->dev, - "%s - kmalloc(%d) failed.\n", __func__, 10); + if (!buffer) return -ENOMEM; - } currentCommand = buffer; @@ -2274,10 +2258,9 @@ static int send_cmd_write_baud_rate(struct edgeport_port *edge_port, /* Alloc memory for the string of commands. */ cmdBuffer = kmalloc(0x100, GFP_ATOMIC); - if (!cmdBuffer) { - dev_err(dev, "%s - kmalloc(%d) failed.\n", __func__, 0x100); + if (!cmdBuffer) return -ENOMEM; - } + currCmd = cmdBuffer; /* Enable access to divisor latch */ @@ -2783,10 +2766,9 @@ static int edge_startup(struct usb_serial *serial) /* create our private serial structure */ edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); - if (edge_serial == NULL) { - dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); + if (!edge_serial) return -ENOMEM; - } + spin_lock_init(&edge_serial->es_lock); edge_serial->serial = serial; usb_set_serial_data(serial, edge_serial); @@ -2875,14 +2857,12 @@ static int edge_startup(struct usb_serial *serial) /* not set up yet, so do it now */ edge_serial->interrupt_read_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!edge_serial->interrupt_read_urb) { - dev_err(ddev, "out of memory\n"); + if (!edge_serial->interrupt_read_urb) return -ENOMEM; - } + edge_serial->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL); if (!edge_serial->interrupt_in_buffer) { - dev_err(ddev, "out of memory\n"); usb_free_urb(edge_serial->interrupt_read_urb); return -ENOMEM; } @@ -2912,14 +2892,12 @@ static int edge_startup(struct usb_serial *serial) /* not set up yet, so do it now */ edge_serial->read_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!edge_serial->read_urb) { - dev_err(ddev, "out of memory\n"); + if (!edge_serial->read_urb) return -ENOMEM; - } + edge_serial->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); if (!edge_serial->bulk_in_buffer) { - dev_err(&dev->dev, "out of memory\n"); usb_free_urb(edge_serial->read_urb); return -ENOMEM; } diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 2b3b7bf..a673f4b 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -364,11 +364,9 @@ static int write_boot_mem(struct edgeport_serial *serial, /* Must do a read before write */ if (!serial->TiReadI2C) { temp = kmalloc(1, GFP_KERNEL); - if (!temp) { - dev_err(&serial->serial->dev->dev, - "%s - out of memory\n", __func__); + if (!temp) return -ENOMEM; - } + status = read_boot_mem(serial, 0, 1, temp); kfree(temp); if (status) @@ -471,10 +469,8 @@ static int tx_active(struct edgeport_port *port) int bytes_left = 0; oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); - if (!oedb) { - dev_err(&port->port->dev, "%s - out of memory\n", __func__); + if (!oedb) return -ENOMEM; - } lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, as not all platforms can do DMA @@ -625,14 +621,11 @@ static int check_i2c_image(struct edgeport_serial *serial) __u16 ttype; rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); - if (!rom_desc) { - dev_err(dev, "%s - out of memory\n", __func__); + if (!rom_desc) return -ENOMEM; - } + buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); if (!buffer) { - dev_err(dev, "%s - out of memory when allocating buffer\n", - __func__); kfree(rom_desc); return -ENOMEM; } @@ -706,10 +699,9 @@ static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) struct device *dev = &serial->serial->dev->dev; rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); - if (!rom_desc) { - dev_err(dev, "%s - out of memory\n", __func__); + if (!rom_desc) return -ENOMEM; - } + start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, rom_desc); @@ -769,10 +761,8 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev) sizeof(struct ti_i2c_firmware_rec)); buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!buffer) { - dev_err(dev, "%s - out of memory\n", __func__); + if (!buffer) return -ENOMEM; - } // Set entire image of 0xffs memset(buffer, 0xff, buffer_size); @@ -832,10 +822,8 @@ static int i2c_type_bootmode(struct edgeport_serial *serial) u8 *data; data = kmalloc(1, GFP_KERNEL); - if (!data) { - dev_err(dev, "%s - out of memory\n", __func__); + if (!data) return -ENOMEM; - } /* Try to read type 2 */ status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, @@ -986,10 +974,9 @@ static int download_fw(struct edgeport_serial *serial) * Read Manufacturing Descriptor from TI Based Edgeport */ ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); - if (!ti_manuf_desc) { - dev_err(dev, "%s - out of memory.\n", __func__); + if (!ti_manuf_desc) return -ENOMEM; - } + status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); if (status) { kfree(ti_manuf_desc); @@ -1006,7 +993,6 @@ static int download_fw(struct edgeport_serial *serial) rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); if (!rom_desc) { - dev_err(dev, "%s - out of memory.\n", __func__); kfree(ti_manuf_desc); return -ENOMEM; } @@ -1023,7 +1009,6 @@ static int download_fw(struct edgeport_serial *serial) firmware_version = kmalloc(sizeof(*firmware_version), GFP_KERNEL); if (!firmware_version) { - dev_err(dev, "%s - out of memory.\n", __func__); kfree(rom_desc); kfree(ti_manuf_desc); return -ENOMEM; @@ -1068,8 +1053,6 @@ static int download_fw(struct edgeport_serial *serial) record = kmalloc(1, GFP_KERNEL); if (!record) { - dev_err(dev, "%s - out of memory.\n", - __func__); kfree(firmware_version); kfree(rom_desc); kfree(ti_manuf_desc); @@ -1153,7 +1136,6 @@ static int download_fw(struct edgeport_serial *serial) header = kmalloc(HEADER_SIZE, GFP_KERNEL); if (!header) { - dev_err(dev, "%s - out of memory.\n", __func__); kfree(rom_desc); kfree(ti_manuf_desc); return -ENOMEM; @@ -1161,7 +1143,6 @@ static int download_fw(struct edgeport_serial *serial) vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); if (!vheader) { - dev_err(dev, "%s - out of memory.\n", __func__); kfree(header); kfree(rom_desc); kfree(ti_manuf_desc); @@ -1290,10 +1271,9 @@ static int download_fw(struct edgeport_serial *serial) * Read Manufacturing Descriptor from TI Based Edgeport */ ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); - if (!ti_manuf_desc) { - dev_err(dev, "%s - out of memory.\n", __func__); + if (!ti_manuf_desc) return -ENOMEM; - } + status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); if (status) { kfree(ti_manuf_desc); @@ -1328,10 +1308,8 @@ static int download_fw(struct edgeport_serial *serial) buffer_size = (((1024 * 16) - 512) + sizeof(struct ti_i2c_image_header)); buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!buffer) { - dev_err(dev, "%s - out of memory\n", __func__); + if (!buffer) return -ENOMEM; - } /* Initialize the buffer to 0xff (pad the buffer) */ memset(buffer, 0xff, buffer_size); @@ -2122,7 +2100,6 @@ static void change_port_settings(struct tty_struct *tty, config = kmalloc (sizeof (*config), GFP_KERNEL); if (!config) { tty->termios = *old_termios; - dev_err(dev, "%s - out of memory\n", __func__); return; } @@ -2393,10 +2370,9 @@ static int edge_startup(struct usb_serial *serial) /* create our private serial structure */ edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); - if (edge_serial == NULL) { - dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); + if (!edge_serial) return -ENOMEM; - } + mutex_init(&edge_serial->es_lock); edge_serial->serial = serial; usb_set_serial_data(serial, edge_serial); diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 716930a..73956d4 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -377,15 +377,12 @@ static void ir_set_termios(struct tty_struct *tty, * send the baud change out on an "empty" data packet */ urb = usb_alloc_urb(0, GFP_KERNEL); - if (!urb) { - dev_err(&port->dev, "%s - no more urbs\n", __func__); + if (!urb) return; - } + transfer_buffer = kmalloc(1, GFP_KERNEL); - if (!transfer_buffer) { - dev_err(&port->dev, "%s - out of memory\n", __func__); + if (!transfer_buffer) goto err_buf; - } *transfer_buffer = ir_xbof | ir_baud; diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index d6960ae..6125fce 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1226,10 +1226,8 @@ static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint, dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %d.\n", __func__, endpoint); urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ - if (urb == NULL) { - dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %d failed.\n", __func__, endpoint); + if (!urb) return NULL; - } if (endpoint == 0) { /* control EP filled in when used */ @@ -2312,10 +2310,8 @@ static int keyspan_startup(struct usb_serial *serial) /* Setup private data for serial driver */ s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); - if (!s_priv) { - dev_dbg(&serial->dev->dev, "%s - kmalloc for keyspan_serial_private failed.\n", __func__); + if (!s_priv) return -ENOMEM; - } s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL); if (!s_priv->instat_buf) diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 1b4054f..4f441c2 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -182,11 +182,9 @@ static int klsi_105_get_line_state(struct usb_serial_port *port, dev_info(&port->serial->dev->dev, "sending SIO Poll request\n"); status_buf = kmalloc(KLSI_STATUSBUF_LEN, GFP_KERNEL); - if (!status_buf) { - dev_err(&port->dev, "%s - out of memory for status buffer.\n", - __func__); + if (!status_buf) return -ENOMEM; - } + status_buf[0] = 0xff; status_buf[1] = 0xff; rc = usb_control_msg(port->serial->dev, @@ -273,11 +271,9 @@ static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port) * priv->line_state. */ cfg = kmalloc(sizeof(*cfg), GFP_KERNEL); - if (!cfg) { - dev_err(&port->dev, "%s - out of memory for config buffer.\n", - __func__); + if (!cfg) return -ENOMEM; - } + cfg->pktlen = 5; cfg->baudrate = kl5kusb105a_sio_b9600; cfg->databits = kl5kusb105a_dtb_8; @@ -417,10 +413,8 @@ static void klsi_105_set_termios(struct tty_struct *tty, speed_t baud; cfg = kmalloc(sizeof(*cfg), GFP_KERNEL); - if (!cfg) { - dev_err(dev, "%s - out of memory for config buffer.\n", __func__); + if (!cfg) return; - } /* lock while we are modifying the settings */ spin_lock_irqsave(&priv->lock, flags); diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index b739a17..ee68191 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -362,15 +362,13 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, /* create and initialize the control urb and containing urbtracker */ urbtrack = kmalloc(sizeof(struct urbtracker), GFP_ATOMIC); - if (urbtrack == NULL) { - dev_err(&usbdev->dev, "out of memory"); + if (!urbtrack) return -ENOMEM; - } + kref_get(&mos_parport->ref_count); urbtrack->mos_parport = mos_parport; urbtrack->urb = usb_alloc_urb(0, GFP_ATOMIC); - if (urbtrack->urb == NULL) { - dev_err(&usbdev->dev, "out of urbs"); + if (!urbtrack->urb) { kfree(urbtrack); return -ENOMEM; } @@ -702,10 +700,9 @@ static int mos7715_parport_init(struct usb_serial *serial) /* allocate and initialize parallel port control struct */ mos_parport = kzalloc(sizeof(struct mos7715_parport), GFP_KERNEL); - if (mos_parport == NULL) { - dev_dbg(&serial->dev->dev, "%s: kzalloc failed\n", __func__); + if (!mos_parport) return -ENOMEM; - } + mos_parport->msg_pending = false; kref_init(&mos_parport->ref_count); spin_lock_init(&mos_parport->listlock); @@ -1018,18 +1015,12 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port) for (j = 0; j < NUM_URBS; ++j) { urb = usb_alloc_urb(0, GFP_KERNEL); mos7720_port->write_urb_pool[j] = urb; - - if (urb == NULL) { - dev_err(&port->dev, "No more urbs???\n"); + if (!urb) continue; - } urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (!urb->transfer_buffer) { - dev_err(&port->dev, - "%s-out of memory for urb buffers.\n", - __func__); usb_free_urb(mos7720_port->write_urb_pool[j]); mos7720_port->write_urb_pool[j] = NULL; continue; @@ -1250,11 +1241,8 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port, if (urb->transfer_buffer == NULL) { urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); - if (urb->transfer_buffer == NULL) { - dev_err_console(port, "%s no more kernel memory...\n", - __func__); + if (!urb->transfer_buffer) goto exit; - } } transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE); diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index bc176ae..2496e71 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -876,20 +876,14 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) for (j = 0; j < NUM_URBS; ++j) { urb = usb_alloc_urb(0, GFP_KERNEL); mos7840_port->write_urb_pool[j] = urb; - - if (urb == NULL) { - dev_err(&port->dev, "No more urbs???\n"); + if (!urb) continue; - } urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); if (!urb->transfer_buffer) { usb_free_urb(urb); mos7840_port->write_urb_pool[j] = NULL; - dev_err(&port->dev, - "%s-out of memory for urb buffers.\n", - __func__); continue; } } @@ -1381,12 +1375,8 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, if (urb->transfer_buffer == NULL) { urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); - - if (urb->transfer_buffer == NULL) { - dev_err_console(port, "%s no more kernel memory...\n", - __func__); + if (!urb->transfer_buffer) goto exit; - } } transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE); @@ -2206,10 +2196,8 @@ static int mos7840_port_probe(struct usb_serial_port *port) dev_dbg(&port->dev, "mos7840_startup: configuring port %d\n", pnum); mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL); - if (mos7840_port == NULL) { - dev_err(&port->dev, "%s - Out of memory\n", __func__); + if (!mos7840_port) return -ENOMEM; - } /* Initialize all port interrupt end point to port 0 int * endpoint. Our device has only one interrupt end point diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 1b4f1d2..90c77b2 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -200,15 +200,12 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, buffer = kmalloc(count, GFP_ATOMIC); if (!buffer) { - dev_err(&port->dev, "out of memory\n"); count = -ENOMEM; - goto error_no_buffer; } urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { - dev_err(&port->dev, "no more free urbs\n"); count = -ENOMEM; goto error_no_urb; } @@ -221,7 +218,6 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, * to transmit data to de barcode device the control endpoint is used */ dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_NOIO); if (!dr) { - dev_err(&port->dev, "out of memory\n"); count = -ENOMEM; goto error_no_dr; } diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index a2080ac..1dea599 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -200,8 +200,7 @@ static void setup_line(struct work_struct *work) int result; new_setup = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL); - if (new_setup == NULL) { - dev_err(&port->dev, "%s(): out of memory!\n", __func__); + if (!new_setup) { /* we will try again */ schedule_delayed_work(&priv->delayed_setup_work, msecs_to_jiffies(2)); @@ -287,11 +286,9 @@ static void send_data(struct work_struct *work) if (count != 0) { allow = kmalloc(1, GFP_KERNEL); - if (!allow) { - dev_err_console(port, "%s(): kmalloc failed\n", - __func__); + if (!allow) return; - } + result = usb_control_msg(port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0), OTI6858_REQ_T_CHECK_TXBUFF, @@ -517,10 +514,8 @@ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port) usb_clear_halt(serial->dev, port->read_urb->pipe); buf = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL); - if (buf == NULL) { - dev_err(&port->dev, "%s(): out of memory!\n", __func__); + if (!buf) return -ENOMEM; - } result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), OTI6858_REQ_T_GET_STATUS, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 9a7dfa3..3dd5398 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -346,7 +346,6 @@ static void pl2303_set_termios(struct tty_struct *tty, buf = kzalloc(7, GFP_KERNEL); if (!buf) { - dev_err(&port->dev, "%s - out of memory.\n", __func__); /* Report back no change occurred */ if (old_termios) tty->termios = *old_termios; diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index a24d59a..cb51dd7 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -676,10 +676,8 @@ static int qt2_setup_urbs(struct usb_serial *serial) serial_priv = usb_get_serial_data(serial); serial_priv->read_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!serial_priv->read_urb) { - dev_err(&serial->dev->dev, "No free urbs available\n"); + if (!serial_priv->read_urb) return -ENOMEM; - } usb_fill_bulk_urb(serial_priv->read_urb, serial->dev, usb_rcvbulkpipe(serial->dev, @@ -715,10 +713,8 @@ static int qt2_attach(struct usb_serial *serial) } serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL); - if (!serial_priv) { - dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); + if (!serial_priv) return -ENOMEM; - } serial_priv->read_buffer = kmalloc(QT2_READ_BUFFER_SIZE, GFP_KERNEL); if (!serial_priv->read_buffer) { diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index de958c5..a9eb6221 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -497,14 +497,12 @@ static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port, buffer = kmalloc(writesize, GFP_ATOMIC); if (!buffer) { - dev_err(&port->dev, "out of memory\n"); retval = -ENOMEM; goto error_no_buffer; } urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { - dev_err(&port->dev, "no more free urbs\n"); retval = -ENOMEM; goto error_no_urb; } @@ -736,11 +734,8 @@ static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, return NULL; urb = usb_alloc_urb(0, mem_flags); - if (urb == NULL) { - dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n", - __func__, endpoint); + if (!urb) return NULL; - } buf = kmalloc(len, mem_flags); if (buf) { @@ -752,9 +747,6 @@ static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint, dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__, dir == USB_DIR_IN ? 'i' : 'o', urb, buf); } else { - dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__, - dir == USB_DIR_IN ? 'i' : 'o', urb, buf); - sierra_release_urb(urb); urb = NULL; } diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 4a649ed..698dc14 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -301,10 +301,9 @@ static int ti_startup(struct usb_serial *serial) /* create device structure */ tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); - if (tdev == NULL) { - dev_err(&dev->dev, "%s - out of memory\n", __func__); + if (!tdev) return -ENOMEM; - } + mutex_init(&tdev->td_open_close_lock); tdev->td_serial = serial; usb_set_serial_data(serial, tdev); @@ -722,10 +721,8 @@ static void ti_set_termios(struct tty_struct *tty, return; config = kmalloc(sizeof(*config), GFP_KERNEL); - if (!config) { - dev_err(&port->dev, "%s - out of memory\n", __func__); + if (!config) return; - } config->wFlags = 0; @@ -1194,10 +1191,8 @@ static int ti_get_lsr(struct ti_port *tport, u8 *lsr) size = sizeof(struct ti_port_status); data = kmalloc(size, GFP_KERNEL); - if (!data) { - dev_err(&port->dev, "%s - out of memory\n", __func__); + if (!data) return -ENOMEM; - } status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); @@ -1397,10 +1392,8 @@ static int ti_write_byte(struct usb_serial_port *port, size = sizeof(struct ti_write_data_bytes) + 2; data = kmalloc(size, GFP_KERNEL); - if (!data) { - dev_err(&port->dev, "%s - out of memory\n", __func__); + if (!data) return -ENOMEM; - } data->bAddrType = TI_RW_DATA_ADDR_XDATA; data->bDataType = TI_RW_DATA_BYTE; @@ -1516,7 +1509,6 @@ static int ti_download_firmware(struct ti_device *tdev) status = ti_do_download(dev, pipe, buffer, fw_p->size); kfree(buffer); } else { - dev_dbg(&dev->dev, "%s ENOMEM\n", __func__); status = -ENOMEM; } release_firmware(fw_p); diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 8536578..640fe01 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -447,12 +447,8 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port, struct urb *urb; urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ - if (urb == NULL) { - dev_dbg(&serial->interface->dev, - "%s: alloc for endpoint %d failed.\n", __func__, - endpoint); + if (!urb) return NULL; - } /* Fill URB using supplied data. */ usb_fill_bulk_urb(urb, serial->dev, diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index ae01643..d938785 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -324,11 +324,8 @@ static int palm_os_3_probe(struct usb_serial *serial, int num_ports = 0; transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL); - if (!transfer_buffer) { - dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__, - sizeof(*connection_info)); + if (!transfer_buffer) return -ENOMEM; - } /* send a get connection info request */ retval = usb_control_msg(serial->dev, @@ -419,11 +416,8 @@ static int palm_os_4_probe(struct usb_serial *serial, int retval; transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL); - if (!transfer_buffer) { - dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__, - sizeof(*connection_info)); + if (!transfer_buffer) return -ENOMEM; - } retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index d23290e..1d9d700 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -288,12 +288,8 @@ static int whiteheat_attach(struct usb_serial *serial) command_info = kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL); - if (command_info == NULL) { - dev_err(&serial->dev->dev, - "%s: Out of memory for port structures\n", - serial->type->description); + if (!command_info) goto no_command_private; - } mutex_init(&command_info->mutex); command_info->port_running = 0; -- cgit v0.10.2 From 49fabf29869c9c21f4d7243fa5b2b9ebc3890a85 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:57 +0100 Subject: USB: f81232: remove bogus call to wake up MSR queue Remove bogus call to wake up delta_msr_wait from process_read_urb where the MSR status is never updated (only the LSR bits are masked out). Comment that the wake-up call should made in f81232_update_line_status when the MSR status changes. Note that this driver is still mostly stubbed out. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index aeb2edc..42c5560 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -55,6 +55,13 @@ static void f81232_update_line_status(struct usb_serial_port *port, unsigned char *data, unsigned int actual_length) { + /* + * FIXME: Call + * + * wake_up_interruptible(&port->port.delta_msr_wait); + * + * on MSR changes. + */ } static void f81232_read_int_callback(struct urb *urb) @@ -110,7 +117,6 @@ static void f81232_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&port->port.delta_msr_wait); if (!urb->actual_length) return; -- cgit v0.10.2 From c50db82dcacfb4f6ab272f98ba964076b3ca529c Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:58 +0100 Subject: USB: f81232: switch to generic tiocmiwait Switch to generic tiocmiwait rather than rely on a custom implementation using racy interruptible_sleep_on(). Note that this driver is mostly stubbed out so neither version of tiocmiwait will actually work until someone implements f81232_update_line_status(). Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 42c5560..1e012fb 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -56,7 +56,7 @@ static void f81232_update_line_status(struct usb_serial_port *port, unsigned int actual_length) { /* - * FIXME: Call + * FIXME: Update port->icount, and call * * wake_up_interruptible(&port->port.delta_msr_wait); * @@ -247,46 +247,6 @@ static int f81232_carrier_raised(struct usb_serial_port *port) return 0; } -static int f81232_tiocmiwait(struct tty_struct *tty, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - struct f81232_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int prevstatus; - unsigned int status; - unsigned int changed; - - spin_lock_irqsave(&priv->lock, flags); - prevstatus = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - while (1) { - interruptible_sleep_on(&port->port.delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - - if (port->serial->disconnected) - return -EIO; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - changed = prevstatus ^ status; - - if (((arg & TIOCM_RNG) && (changed & UART_RING)) || - ((arg & TIOCM_DSR) && (changed & UART_DSR)) || - ((arg & TIOCM_CD) && (changed & UART_DCD)) || - ((arg & TIOCM_CTS) && (changed & UART_CTS))) { - return 0; - } - prevstatus = status; - } - /* NOTREACHED */ - return 0; -} - static int f81232_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { @@ -356,7 +316,7 @@ static struct usb_serial_driver f81232_device = { .set_termios = f81232_set_termios, .tiocmget = f81232_tiocmget, .tiocmset = f81232_tiocmset, - .tiocmiwait = f81232_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .process_read_urb = f81232_process_read_urb, .read_int_callback = f81232_read_int_callback, .port_probe = f81232_port_probe, -- cgit v0.10.2 From 71c671bf4cead0e801eccbed3fe790e817f6b6d4 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:22:59 +0100 Subject: USB: pl2303: remove bogus delta_msr_wait wake up Remove bogus MSR wait-queue wake up from process_read_urb which never updates the MSR flags. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 3dd5398..6234d55 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -787,7 +787,6 @@ static void pl2303_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&port->port.delta_msr_wait); if (!urb->actual_length) return; -- cgit v0.10.2 From ccfe8188a321f4039a7e52c8336bb4ff3ca35139 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:00 +0100 Subject: USB: pl2303: clean up driver somewhat Use u16 rather than __u16. Fix multi-line comment style. Remove some comments. Remove unnecessary whitespace and add some where appropriate. Drop DRIVER_DESC define. Merge and simplify multi-line error message. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 6234d55..a44154a 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -12,7 +12,6 @@ * * See Documentation/usb/usb-serial.txt for more information on using this * driver - * */ #include @@ -32,11 +31,6 @@ #include #include "pl2303.h" -/* - * Version Information - */ -#define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver" - static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, @@ -146,27 +140,34 @@ struct pl2303_private { u8 line_settings[7]; }; -static int pl2303_vendor_read(__u16 value, __u16 index, +static int pl2303_vendor_read(u16 value, u16 index, struct usb_serial *serial, unsigned char *buf) { - int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + int res; + + res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, value, index, buf, 1, 100); + dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, value, index, res, buf[0]); + return res; } -static int pl2303_vendor_write(__u16 value, __u16 index, - struct usb_serial *serial) +static int pl2303_vendor_write(u16 value, u16 index, struct usb_serial *serial) { - int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), + int res; + + res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, value, index, NULL, 0, 100); + dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d\n", VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, value, index, res); + return res; } @@ -215,14 +216,14 @@ static int pl2303_startup(struct usb_serial *serial) pl2303_vendor_write(2, 0x24, serial); kfree(buf); + return 0; } static void pl2303_release(struct usb_serial *serial) { - struct pl2303_serial_private *spriv; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); - spriv = usb_get_serial_data(serial); kfree(spriv); } @@ -245,9 +246,8 @@ static int pl2303_port_probe(struct usb_serial_port *port) static int pl2303_port_remove(struct usb_serial_port *port) { - struct pl2303_private *priv; + struct pl2303_private *priv = usb_get_serial_port_data(port); - priv = usb_get_serial_port_data(port); kfree(priv); return 0; @@ -261,8 +261,10 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, value, 0, NULL, 0, 100); + dev_dbg(&port->dev, "%s - value = %d, retval = %d\n", __func__, value, retval); + return retval; } @@ -488,13 +490,13 @@ static void pl2303_dtr_rts(struct usb_serial_port *port, int on) u8 control; spin_lock_irqsave(&priv->lock, flags); - /* Change DTR and RTS */ if (on) priv->line_control |= (CONTROL_DTR | CONTROL_RTS); else priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); + pl2303_set_control_lines(port, control); } @@ -525,8 +527,8 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result) { - dev_err(&port->dev, "%s - failed submitting interrupt urb," - " error %d\n", __func__, result); + dev_err(&port->dev, "failed to submit interrupt urb: %d\n", + result); return result; } @@ -596,8 +598,10 @@ static int pl2303_tiocmget(struct tty_struct *tty) static int pl2303_carrier_raised(struct usb_serial_port *port) { struct pl2303_private *priv = usb_get_serial_port_data(port); + if (priv->line_status & UART_DCD) return 1; + return 0; } @@ -662,6 +666,7 @@ static int pl2303_ioctl(struct tty_struct *tty, default: break; } + return -ENOIOCTLCMD; } @@ -676,6 +681,7 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state) state = BREAK_OFF; else state = BREAK_ON; + dev_dbg(&port->dev, "%s - turning break %s\n", __func__, state == BREAK_OFF ? "off" : "on"); @@ -690,7 +696,6 @@ static void pl2303_update_line_status(struct usb_serial_port *port, unsigned char *data, unsigned int actual_length) { - struct pl2303_private *priv = usb_get_serial_port_data(port); struct tty_struct *tty; unsigned long flags; @@ -702,12 +707,10 @@ static void pl2303_update_line_status(struct usb_serial_port *port, idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); - if (idv == SIEMENS_VENDOR_ID) { if (idp == SIEMENS_PRODUCT_ID_X65 || idp == SIEMENS_PRODUCT_ID_SX1 || idp == SIEMENS_PRODUCT_ID_X75) { - length = 1; status_idx = 0; } @@ -721,8 +724,10 @@ static void pl2303_update_line_status(struct usb_serial_port *port, prev_line_status = priv->line_status; priv->line_status = data[status_idx]; spin_unlock_irqrestore(&priv->lock, flags); + if (priv->line_status & UART_BREAK_ERROR) usb_serial_handle_break(port); + wake_up_interruptible(&port->port.delta_msr_wait); tty = tty_port_tty_get(&port->port); @@ -766,10 +771,11 @@ static void pl2303_read_int_callback(struct urb *urb) exit: retval = usb_submit_urb(urb, GFP_ATOMIC); - if (retval) + if (retval) { dev_err(&port->dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); + } } static void pl2303_process_read_urb(struct urb *urb) @@ -791,8 +797,10 @@ static void pl2303_process_read_urb(struct urb *urb) if (!urb->actual_length) return; - /* break takes precedence over parity, */ - /* which takes precedence over framing errors */ + /* + * Break takes precedence over parity, which takes precedence over + * framing errors. + */ if (line_status & UART_BREAK_ERROR) tty_flag = TTY_BREAK; else if (line_status & UART_PARITY_ERROR) @@ -820,7 +828,6 @@ static void pl2303_process_read_urb(struct urb *urb) tty_flip_buffer_push(&port->port); } -/* All of the device info needed for the PL2303 SIO serial converter */ static struct usb_serial_driver pl2303_device = { .driver = { .owner = THIS_MODULE, @@ -832,7 +839,7 @@ static struct usb_serial_driver pl2303_device = { .bulk_out_size = 256, .open = pl2303_open, .close = pl2303_close, - .dtr_rts = pl2303_dtr_rts, + .dtr_rts = pl2303_dtr_rts, .carrier_raised = pl2303_carrier_raised, .ioctl = pl2303_ioctl, .break_ctl = pl2303_break_ctl, @@ -854,5 +861,5 @@ static struct usb_serial_driver * const serial_drivers[] = { module_usb_serial_driver(serial_drivers, id_table); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_DESCRIPTION("Prolific PL2303 USB to serial adaptor driver"); MODULE_LICENSE("GPL"); -- cgit v0.10.2 From 362eb02603be7bb835c47f2cf585954a5080449d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:01 +0100 Subject: USB: pl2303: add error handling to vendor read and write functions Add error handling and clean up vendor read and write functions. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index a44154a..4058cee 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -140,35 +140,46 @@ struct pl2303_private { u8 line_settings[7]; }; -static int pl2303_vendor_read(u16 value, u16 index, - struct usb_serial *serial, unsigned char *buf) +static int pl2303_vendor_read(struct usb_serial *serial, u16 value, + unsigned char buf[1]) { + struct device *dev = &serial->interface->dev; int res; res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, - value, index, buf, 1, 100); + value, 0, buf, 1, 100); + if (res != 1) { + dev_err(dev, "%s - failed to read [%04x]: %d\n", __func__, + value, res); + if (res >= 0) + res = -EIO; + + return res; + } - dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", - VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, value, index, - res, buf[0]); + dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, buf[0]); - return res; + return 0; } -static int pl2303_vendor_write(u16 value, u16 index, struct usb_serial *serial) +static int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index) { + struct device *dev = &serial->interface->dev; int res; + dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, index); + res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, value, index, NULL, 0, 100); + if (res) { + dev_err(dev, "%s - failed to write [%04x]: %d\n", __func__, + value, res); + return res; + } - dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d\n", - VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, value, index, - res); - - return res; + return 0; } static int pl2303_startup(struct usb_serial *serial) @@ -181,7 +192,7 @@ static int pl2303_startup(struct usb_serial *serial) if (!spriv) return -ENOMEM; - buf = kmalloc(10, GFP_KERNEL); + buf = kmalloc(1, GFP_KERNEL); if (!buf) { kfree(spriv); return -ENOMEM; @@ -200,20 +211,20 @@ static int pl2303_startup(struct usb_serial *serial) spriv->type = type; usb_set_serial_data(serial, spriv); - pl2303_vendor_read(0x8484, 0, serial, buf); - pl2303_vendor_write(0x0404, 0, serial); - pl2303_vendor_read(0x8484, 0, serial, buf); - pl2303_vendor_read(0x8383, 0, serial, buf); - pl2303_vendor_read(0x8484, 0, serial, buf); - pl2303_vendor_write(0x0404, 1, serial); - pl2303_vendor_read(0x8484, 0, serial, buf); - pl2303_vendor_read(0x8383, 0, serial, buf); - pl2303_vendor_write(0, 1, serial); - pl2303_vendor_write(1, 0, serial); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_write(serial, 0x0404, 0); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_read(serial, 0x8383, buf); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_write(serial, 0x0404, 1); + pl2303_vendor_read(serial, 0x8484, buf); + pl2303_vendor_read(serial, 0x8383, buf); + pl2303_vendor_write(serial, 0, 1); + pl2303_vendor_write(serial, 1, 0); if (type == HX) - pl2303_vendor_write(2, 0x44, serial); + pl2303_vendor_write(serial, 2, 0x44); else - pl2303_vendor_write(2, 0x24, serial); + pl2303_vendor_write(serial, 2, 0x24); kfree(buf); @@ -473,11 +484,11 @@ static void pl2303_set_termios(struct tty_struct *tty, if (C_CRTSCTS(tty)) { if (spriv->type == HX) - pl2303_vendor_write(0x0, 0x61, serial); + pl2303_vendor_write(serial, 0x0, 0x61); else - pl2303_vendor_write(0x0, 0x41, serial); + pl2303_vendor_write(serial, 0x0, 0x41); } else { - pl2303_vendor_write(0x0, 0x0, serial); + pl2303_vendor_write(serial, 0x0, 0x0); } kfree(buf); @@ -517,8 +528,8 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) usb_clear_halt(serial->dev, port->read_urb->pipe); } else { /* reset upstream data pipes */ - pl2303_vendor_write(8, 0, serial); - pl2303_vendor_write(9, 0, serial); + pl2303_vendor_write(serial, 8, 0); + pl2303_vendor_write(serial, 9, 0); } /* Setup termios */ -- cgit v0.10.2 From a6ec8245bf09fd51a0561ff372a12473b48d269b Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:02 +0100 Subject: USB: pl2303: add error handling to set_control_lines Add error handling to set_control_lines. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 4058cee..1fe8545 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -269,12 +269,13 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) struct usb_device *dev = port->serial->dev; int retval; + dev_dbg(&port->dev, "%s - %02x\n", __func__, value); + retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, value, 0, NULL, 0, 100); - - dev_dbg(&port->dev, "%s - value = %d, retval = %d\n", __func__, - value, retval); + if (retval) + dev_err(&port->dev, "%s - failed: %d\n", __func__, retval); return retval; } -- cgit v0.10.2 From 383d19c58729e34b3b94e47da20aa7fe4970a577 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:03 +0100 Subject: USB: pl2303: add error handling to line requests Refactor and add error handling to line requests. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 1fe8545..28b10cf 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -344,6 +344,52 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, dev_dbg(&port->dev, "baud set = %d\n", baud); } +static int pl2303_get_line_request(struct usb_serial_port *port, + unsigned char buf[7]) +{ + struct usb_device *udev = port->serial->dev; + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + if (ret != 7) { + dev_err(&port->dev, "%s - failed: %d\n", __func__, ret); + + if (ret > 0) + ret = -EIO; + + return ret; + } + + dev_dbg(&port->dev, "%s - %7ph\n", __func__, buf); + + return 0; +} + +static int pl2303_set_line_request(struct usb_serial_port *port, + unsigned char buf[7]) +{ + struct usb_device *udev = port->serial->dev; + int ret; + + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + if (ret != 7) { + dev_err(&port->dev, "%s - failed: %d\n", __func__, ret); + + if (ret > 0) + ret = -EIO; + + return ret; + } + + dev_dbg(&port->dev, "%s - %7ph\n", __func__, buf); + + return 0; +} + static void pl2303_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { @@ -352,7 +398,7 @@ static void pl2303_set_termios(struct tty_struct *tty, struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned char *buf; - int i; + int ret; u8 control; if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios)) @@ -366,10 +412,7 @@ static void pl2303_set_termios(struct tty_struct *tty, return; } - i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); + pl2303_get_line_request(port, buf); switch (C_CSIZE(tty)) { case CS5: @@ -451,14 +494,8 @@ static void pl2303_set_termios(struct tty_struct *tty, * only used in set_termios, which is serialised against itself. */ if (!old_termios || memcmp(buf, priv->line_settings, 7)) { - i = usb_control_msg(serial->dev, - usb_sndctrlpipe(serial->dev, 0), - SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - - dev_dbg(&port->dev, "0x21:0x20:0:0 %d\n", i); - - if (i == 7) + ret = pl2303_set_line_request(port, buf); + if (!ret) memcpy(priv->line_settings, buf, 7); } @@ -478,10 +515,7 @@ static void pl2303_set_termios(struct tty_struct *tty, } memset(buf, 0, 7); - i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); + pl2303_get_line_request(port, buf); if (C_CRTSCTS(tty)) { if (spriv->type == HX) -- cgit v0.10.2 From 294bb2c6178da6334f54bd88aac7dca63fd89b06 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:04 +0100 Subject: USB: pl2303: remove redundant line-request call Remove redundant get_line_request (the read back settings are never used). Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 28b10cf..440b99c 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -514,9 +514,6 @@ static void pl2303_set_termios(struct tty_struct *tty, spin_unlock_irqrestore(&priv->lock, flags); } - memset(buf, 0, 7); - pl2303_get_line_request(port, buf); - if (C_CRTSCTS(tty)) { if (spriv->type == HX) pl2303_vendor_write(serial, 0x0, 0x61); -- cgit v0.10.2 From 228e4105374cffd5372b1dbdf1f8ec8cf1d964ae Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:05 +0100 Subject: USB: pl2303: add line-status quirk for Siemens phones Implement line-status handling for Siemens phones as a quirk rather than spreading such information all over the driver by matching on vendor and and product ids. Note that the SIEMENS_PRODUCT_ID_EF81, which was added after the line-status handling for the other Siemens phones was fixed, might also need this quirk. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 440b99c..8dd1c4a 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -31,6 +31,9 @@ #include #include "pl2303.h" + +#define PL2303_QUIRK_UART_STATE_IDX0 BIT(0) + static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, @@ -58,9 +61,12 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) }, { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) }, { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) }, - { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1) }, - { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65) }, - { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75) }, + { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1), + .driver_info = PL2303_QUIRK_UART_STATE_IDX0 }, + { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65), + .driver_info = PL2303_QUIRK_UART_STATE_IDX0 }, + { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75), + .driver_info = PL2303_QUIRK_UART_STATE_IDX0 }, { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) }, { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */ { USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) }, @@ -110,7 +116,7 @@ MODULE_DEVICE_TABLE(usb, id_table); #define VENDOR_READ_REQUEST_TYPE 0xc0 #define VENDOR_READ_REQUEST 0x01 -#define UART_STATE 0x08 +#define UART_STATE_INDEX 8 #define UART_STATE_TRANSIENT_MASK 0x74 #define UART_DCD 0x01 #define UART_DSR 0x02 @@ -130,6 +136,7 @@ enum pl2303_type { struct pl2303_serial_private { enum pl2303_type type; + unsigned long quirks; }; struct pl2303_private { @@ -182,6 +189,14 @@ static int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index) return 0; } +static int pl2303_probe(struct usb_serial *serial, + const struct usb_device_id *id) +{ + usb_set_serial_data(serial, (void *)id->driver_info); + + return 0; +} + static int pl2303_startup(struct usb_serial *serial) { struct pl2303_serial_private *spriv; @@ -209,6 +224,8 @@ static int pl2303_startup(struct usb_serial *serial) dev_dbg(&serial->interface->dev, "device type: %d\n", type); spriv->type = type; + spriv->quirks = (unsigned long)usb_get_serial_data(serial); + usb_set_serial_data(serial, spriv); pl2303_vendor_read(serial, 0x8484, buf); @@ -739,27 +756,18 @@ static void pl2303_update_line_status(struct usb_serial_port *port, unsigned char *data, unsigned int actual_length) { + struct usb_serial *serial = port->serial; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); struct pl2303_private *priv = usb_get_serial_port_data(port); struct tty_struct *tty; unsigned long flags; - u8 status_idx = UART_STATE; - u8 length = UART_STATE + 1; + unsigned int status_idx = UART_STATE_INDEX; u8 prev_line_status; - u16 idv, idp; - idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); - idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); - - if (idv == SIEMENS_VENDOR_ID) { - if (idp == SIEMENS_PRODUCT_ID_X65 || - idp == SIEMENS_PRODUCT_ID_SX1 || - idp == SIEMENS_PRODUCT_ID_X75) { - length = 1; - status_idx = 0; - } - } + if (spriv->quirks & PL2303_QUIRK_UART_STATE_IDX0) + status_idx = 0; - if (actual_length < length) + if (actual_length < status_idx + 1) return; /* Save off the uart status for others to look at */ @@ -892,6 +900,7 @@ static struct usb_serial_driver pl2303_device = { .tiocmiwait = pl2303_tiocmiwait, .process_read_urb = pl2303_process_read_urb, .read_int_callback = pl2303_read_int_callback, + .probe = pl2303_probe, .attach = pl2303_startup, .release = pl2303_release, .port_probe = pl2303_port_probe, -- cgit v0.10.2 From f84ee3b2f5e5e39041c39268a9eab5046a050d44 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:06 +0100 Subject: USB: pl2303: use speed_t for baud rates Use speed_t for baud rates throughout. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 8dd1c4a..40f7b80 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -301,14 +301,14 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, struct usb_serial_port *port, u8 buf[4]) { - const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, + const speed_t baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400, 19200, 28800, 38400, 57600, 115200, 230400, 460800, 500000, 614400, 921600, 1228800, 2457600, 3000000, 6000000 }; struct usb_serial *serial = port->serial; struct pl2303_serial_private *spriv = usb_get_serial_data(serial); - int baud; + speed_t baud; int i; /* @@ -317,7 +317,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, * 9600 baud (at least my PL2303X always does) */ baud = tty_get_baud_rate(tty); - dev_dbg(&port->dev, "baud requested = %d\n", baud); + dev_dbg(&port->dev, "baud requested = %u\n", baud); if (!baud) return; @@ -336,7 +336,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, /* type_0, type_1 only support up to 1228800 baud */ if (spriv->type != HX) - baud = min_t(int, baud, 1228800); + baud = min_t(speed_t, baud, 1228800); if (baud <= 115200) { put_unaligned_le32(baud, buf); @@ -358,7 +358,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, /* Save resulting baud rate */ tty_encode_baud_rate(tty, baud, baud); - dev_dbg(&port->dev, "baud set = %d\n", baud); + dev_dbg(&port->dev, "baud set = %u\n", baud); } static int pl2303_get_line_request(struct usb_serial_port *port, -- cgit v0.10.2 From 7f966ac7a939633ff6fa8cec58982676c243b4f8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:07 +0100 Subject: USB: pl2303: clean up type handling Merge types 0 and 1, whose differences are unknown and have always been treated the same. Add TYPE_-prefix to both types. Test for TYPE_01 (rather than !TYPE_HX) for legacy device quirks. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 40f7b80..52f0c96 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -129,9 +129,8 @@ MODULE_DEVICE_TABLE(usb, id_table); enum pl2303_type { - type_0, /* don't know the difference between type 0 and */ - type_1, /* type 1, until someone from prolific tells us... */ - HX, /* HX version of the pl2303 chip */ + TYPE_01, /* Type 0 and 1 (difference unknown) */ + TYPE_HX, /* HX version of the pl2303 chip */ }; struct pl2303_serial_private { @@ -200,7 +199,7 @@ static int pl2303_probe(struct usb_serial *serial, static int pl2303_startup(struct usb_serial *serial) { struct pl2303_serial_private *spriv; - enum pl2303_type type = type_0; + enum pl2303_type type = TYPE_01; unsigned char *buf; spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); @@ -214,13 +213,13 @@ static int pl2303_startup(struct usb_serial *serial) } if (serial->dev->descriptor.bDeviceClass == 0x02) - type = type_0; + type = TYPE_01; /* type 0 */ else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) - type = HX; + type = TYPE_HX; else if (serial->dev->descriptor.bDeviceClass == 0x00) - type = type_1; + type = TYPE_01; /* type 1 */ else if (serial->dev->descriptor.bDeviceClass == 0xFF) - type = type_1; + type = TYPE_01; /* type 1 */ dev_dbg(&serial->interface->dev, "device type: %d\n", type); spriv->type = type; @@ -238,10 +237,10 @@ static int pl2303_startup(struct usb_serial *serial) pl2303_vendor_read(serial, 0x8383, buf); pl2303_vendor_write(serial, 0, 1); pl2303_vendor_write(serial, 1, 0); - if (type == HX) - pl2303_vendor_write(serial, 2, 0x44); - else + if (type == TYPE_01) pl2303_vendor_write(serial, 2, 0x24); + else + pl2303_vendor_write(serial, 2, 0x44); kfree(buf); @@ -335,7 +334,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, baud = baud_sup[i]; /* type_0, type_1 only support up to 1228800 baud */ - if (spriv->type != HX) + if (spriv->type == TYPE_01) baud = min_t(speed_t, baud, 1228800); if (baud <= 115200) { @@ -532,10 +531,10 @@ static void pl2303_set_termios(struct tty_struct *tty, } if (C_CRTSCTS(tty)) { - if (spriv->type == HX) - pl2303_vendor_write(serial, 0x0, 0x61); - else + if (spriv->type == TYPE_01) pl2303_vendor_write(serial, 0x0, 0x41); + else + pl2303_vendor_write(serial, 0x0, 0x61); } else { pl2303_vendor_write(serial, 0x0, 0x0); } @@ -572,7 +571,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int result; - if (spriv->type != HX) { + if (spriv->type == TYPE_01) { usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); } else { -- cgit v0.10.2 From 23c6acb9684ac87c2e752f61900c7a1a2dd543ac Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:08 +0100 Subject: USB: pl2303: add quirk for legacy devices Add quirk for legacy devices (type 0 and 1) rather than testing on device type throughout the driver. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 52f0c96..014dea1 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -33,6 +33,7 @@ #define PL2303_QUIRK_UART_STATE_IDX0 BIT(0) +#define PL2303_QUIRK_LEGACY BIT(1) static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, @@ -224,6 +225,8 @@ static int pl2303_startup(struct usb_serial *serial) spriv->type = type; spriv->quirks = (unsigned long)usb_get_serial_data(serial); + if (type == TYPE_01) + spriv->quirks |= PL2303_QUIRK_LEGACY; usb_set_serial_data(serial, spriv); @@ -237,7 +240,7 @@ static int pl2303_startup(struct usb_serial *serial) pl2303_vendor_read(serial, 0x8383, buf); pl2303_vendor_write(serial, 0, 1); pl2303_vendor_write(serial, 1, 0); - if (type == TYPE_01) + if (spriv->quirks & PL2303_QUIRK_LEGACY) pl2303_vendor_write(serial, 2, 0x24); else pl2303_vendor_write(serial, 2, 0x44); @@ -531,7 +534,7 @@ static void pl2303_set_termios(struct tty_struct *tty, } if (C_CRTSCTS(tty)) { - if (spriv->type == TYPE_01) + if (spriv->quirks & PL2303_QUIRK_LEGACY) pl2303_vendor_write(serial, 0x0, 0x41); else pl2303_vendor_write(serial, 0x0, 0x61); @@ -571,7 +574,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int result; - if (spriv->type == TYPE_01) { + if (spriv->quirks & PL2303_QUIRK_LEGACY) { usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); } else { -- cgit v0.10.2 From 359defdaa46c6ecf6a29600f3d57c663c9c35fd2 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:09 +0100 Subject: USB: pl2303: add device-type abstraction Encode all device-type specifics in a struct rather than testing for device type and spreading such information throughout the driver. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 014dea1..35aa497 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -132,10 +132,16 @@ MODULE_DEVICE_TABLE(usb, id_table); enum pl2303_type { TYPE_01, /* Type 0 and 1 (difference unknown) */ TYPE_HX, /* HX version of the pl2303 chip */ + TYPE_COUNT +}; + +struct pl2303_type_data { + speed_t max_baud_rate; + unsigned long quirks; }; struct pl2303_serial_private { - enum pl2303_type type; + struct pl2303_type_data *type; unsigned long quirks; }; @@ -147,6 +153,13 @@ struct pl2303_private { u8 line_settings[7]; }; +static struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = { + [TYPE_01] = { + .max_baud_rate = 1228800, + .quirks = PL2303_QUIRK_LEGACY, + }, +}; + static int pl2303_vendor_read(struct usb_serial *serial, u16 value, unsigned char buf[1]) { @@ -223,10 +236,9 @@ static int pl2303_startup(struct usb_serial *serial) type = TYPE_01; /* type 1 */ dev_dbg(&serial->interface->dev, "device type: %d\n", type); - spriv->type = type; + spriv->type = &pl2303_type_data[type]; spriv->quirks = (unsigned long)usb_get_serial_data(serial); - if (type == TYPE_01) - spriv->quirks |= PL2303_QUIRK_LEGACY; + spriv->quirks |= spriv->type->quirks; usb_set_serial_data(serial, spriv); @@ -336,9 +348,8 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, else baud = baud_sup[i]; - /* type_0, type_1 only support up to 1228800 baud */ - if (spriv->type == TYPE_01) - baud = min_t(speed_t, baud, 1228800); + if (spriv->type->max_baud_rate) + baud = min_t(speed_t, baud, spriv->type->max_baud_rate); if (baud <= 115200) { put_unaligned_le32(baud, buf); -- cgit v0.10.2 From 79816824c1ae73542d9523283ce353142b67563e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:10 +0100 Subject: USB: pl2303: rename pl2303_encode_baud_rate Rename baud-rate encoding function to match tty naming. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 35aa497..8d792af 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -311,7 +311,7 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) return retval; } -static void pl2303_encode_baudrate(struct tty_struct *tty, +static void pl2303_encode_baud_rate(struct tty_struct *tty, struct usb_serial_port *port, u8 buf[4]) { @@ -335,7 +335,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, if (!baud) return; - /* Set baudrate to nearest supported value */ + /* Set baud rate to nearest supported value */ for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) { if (baud_sup[i] > baud) break; @@ -461,7 +461,7 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "data bits = %d\n", buf[6]); /* For reference buf[0]:buf[3] baud rate value */ - pl2303_encode_baudrate(tty, port, &buf[0]); + pl2303_encode_baud_rate(tty, port, &buf[0]); /* For reference buf[4]=0 is 1 stop bits */ /* For reference buf[4]=1 is 1.5 stop bits */ -- cgit v0.10.2 From 59afe10e8dd33d26f8c2ae7572f9023044e71bab Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:11 +0100 Subject: USB: pl2303: refactor baud-rate table lookup Refactor supported baud-rate table lookup. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 8d792af..9a95b92 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -311,31 +311,19 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) return retval; } -static void pl2303_encode_baud_rate(struct tty_struct *tty, - struct usb_serial_port *port, - u8 buf[4]) +/* + * Returns the nearest supported baud rate. + */ +static speed_t pl2303_get_supported_baud_rate(speed_t baud) { - const speed_t baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, - 4800, 7200, 9600, 14400, 19200, 28800, 38400, - 57600, 115200, 230400, 460800, 500000, 614400, - 921600, 1228800, 2457600, 3000000, 6000000 }; + static const speed_t baud_sup[] = { + 75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, + 14400, 19200, 28800, 38400, 57600, 115200, 230400, 460800, + 500000, 614400, 921600, 1228800, 2457600, 3000000, 6000000 + }; - struct usb_serial *serial = port->serial; - struct pl2303_serial_private *spriv = usb_get_serial_data(serial); - speed_t baud; - int i; + unsigned i; - /* - * NOTE: Only the values defined in baud_sup are supported! - * => if unsupported values are set, the PL2303 seems to use - * 9600 baud (at least my PL2303X always does) - */ - baud = tty_get_baud_rate(tty); - dev_dbg(&port->dev, "baud requested = %u\n", baud); - if (!baud) - return; - - /* Set baud rate to nearest supported value */ for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) { if (baud_sup[i] > baud) break; @@ -348,6 +336,29 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, else baud = baud_sup[i]; + return baud; +} + +static void pl2303_encode_baud_rate(struct tty_struct *tty, + struct usb_serial_port *port, + u8 buf[4]) +{ + struct usb_serial *serial = port->serial; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); + speed_t baud; + + baud = tty_get_baud_rate(tty); + dev_dbg(&port->dev, "baud requested = %u\n", baud); + if (!baud) + return; + /* + * Set baud rate to nearest supported value. + * + * NOTE: If unsupported values are set directly, the PL2303 seems to + * use 9600 baud. + */ + baud = pl2303_get_supported_baud_rate(baud); + if (spriv->type->max_baud_rate) baud = min_t(speed_t, baud, spriv->type->max_baud_rate); -- cgit v0.10.2 From 871996ede12306cd1d75ed8135bed6f1fcbcd0e6 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:12 +0100 Subject: USB: pl2303: enforce baud-rate limits before lookup Enforce any baud-rate limits before doing table lookup. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 9a95b92..394903b 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -351,6 +351,9 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, dev_dbg(&port->dev, "baud requested = %u\n", baud); if (!baud) return; + + if (spriv->type->max_baud_rate) + baud = min_t(speed_t, baud, spriv->type->max_baud_rate); /* * Set baud rate to nearest supported value. * @@ -359,9 +362,6 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, */ baud = pl2303_get_supported_baud_rate(baud); - if (spriv->type->max_baud_rate) - baud = min_t(speed_t, baud, spriv->type->max_baud_rate); - if (baud <= 115200) { put_unaligned_le32(baud, buf); } else { -- cgit v0.10.2 From c82c6d45a2fc882fedfde517ba86690b2d5ed555 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:13 +0100 Subject: USB: pl2303: refactor baud-rate divisor handling Refactor baud-rate divisor handling. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 394903b..44f4b54 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -339,6 +339,28 @@ static speed_t pl2303_get_supported_baud_rate(speed_t baud) return baud; } +static speed_t pl2303_encode_baud_rate_divisor(unsigned char buf[4], + speed_t baud) +{ + unsigned int tmp; + + /* + * Apparently the formula is: + * baudrate = 12M * 32 / (2^buf[1]) / buf[0] + */ + tmp = 12000000 * 32 / baud; + buf[3] = 0x80; + buf[2] = 0; + buf[1] = (tmp >= 256); + while (tmp >= 256) { + tmp >>= 2; + buf[1] <<= 1; + } + buf[0] = tmp; + + return baud; +} + static void pl2303_encode_baud_rate(struct tty_struct *tty, struct usb_serial_port *port, u8 buf[4]) @@ -362,23 +384,10 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, */ baud = pl2303_get_supported_baud_rate(baud); - if (baud <= 115200) { + if (baud <= 115200) put_unaligned_le32(baud, buf); - } else { - /* - * Apparently the formula for higher speeds is: - * baudrate = 12M * 32 / (2^buf[1]) / buf[0] - */ - unsigned tmp = 12000000 * 32 / baud; - buf[3] = 0x80; - buf[2] = 0; - buf[1] = (tmp >= 256); - while (tmp >= 256) { - tmp >>= 2; - buf[1] <<= 1; - } - buf[0] = tmp; - } + else + baud = pl2303_encode_baud_rate_divisor(buf, baud); /* Save resulting baud rate */ tty_encode_baud_rate(tty, baud, baud); -- cgit v0.10.2 From 20b4c787199f4fcf0fae5ed78a4ff0104e2afaa3 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:14 +0100 Subject: USB: pl2303: add helper function for direct baud-rate encoding Add helper function for direct baud-rate encoding. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 44f4b54..b4e7297 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -339,6 +339,18 @@ static speed_t pl2303_get_supported_baud_rate(speed_t baud) return baud; } +/* + * NOTE: If unsupported baud rates are set directly, the PL2303 seems to + * use 9600 baud. + */ +static speed_t pl2303_encode_baud_rate_direct(unsigned char buf[4], + speed_t baud) +{ + put_unaligned_le32(baud, buf); + + return baud; +} + static speed_t pl2303_encode_baud_rate_divisor(unsigned char buf[4], speed_t baud) { @@ -376,16 +388,12 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, if (spriv->type->max_baud_rate) baud = min_t(speed_t, baud, spriv->type->max_baud_rate); - /* - * Set baud rate to nearest supported value. - * - * NOTE: If unsupported values are set directly, the PL2303 seems to - * use 9600 baud. - */ + + /* Set baud rate to nearest supported value. */ baud = pl2303_get_supported_baud_rate(baud); if (baud <= 115200) - put_unaligned_le32(baud, buf); + baud = pl2303_encode_baud_rate_direct(buf, baud); else baud = pl2303_encode_baud_rate_divisor(buf, baud); -- cgit v0.10.2 From 5d85045f4b082800beb384094fc67fa0d2096563 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:15 +0100 Subject: USB: pl2303: use direct baud-rate encoding when possible MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use direct baud-rate encoding rather than divisors for supported baud rates. This restores the way baud rates were set prior to commit 8d48fdf689fe ("USB: PL2303: correctly handle baudrates above 115200") which added divisor encoding, but also switched to the new encoding method for all baudrates above 115200. As noted by Frank Schäfer , baud rate 500k was later errounously added to the supported baud-rate table although it can only be set using divisors. Note that the current implementation could easily be extended to support arbitrary non-standard baud rates using divisors (e.g. by falling back to divisors when the table lookup fails). Cc: Frank Schäfer Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index b4e7297..28e5986 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -312,14 +312,15 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) } /* - * Returns the nearest supported baud rate. + * Returns the nearest supported baud rate that can be set directly without + * using divisors. */ static speed_t pl2303_get_supported_baud_rate(speed_t baud) { static const speed_t baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400, 19200, 28800, 38400, 57600, 115200, 230400, 460800, - 500000, 614400, 921600, 1228800, 2457600, 3000000, 6000000 + 614400, 921600, 1228800, 2457600, 3000000, 6000000 }; unsigned i; @@ -379,6 +380,7 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, { struct usb_serial *serial = port->serial; struct pl2303_serial_private *spriv = usb_get_serial_data(serial); + speed_t baud_sup; speed_t baud; baud = tty_get_baud_rate(tty); @@ -388,14 +390,17 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty, if (spriv->type->max_baud_rate) baud = min_t(speed_t, baud, spriv->type->max_baud_rate); + /* + * Set baud rate to nearest supported value. + * + * NOTE: Baud rate 500k can only be set using divisors. + */ + baud_sup = pl2303_get_supported_baud_rate(baud); - /* Set baud rate to nearest supported value. */ - baud = pl2303_get_supported_baud_rate(baud); - - if (baud <= 115200) - baud = pl2303_encode_baud_rate_direct(buf, baud); - else + if (baud == 500000) baud = pl2303_encode_baud_rate_divisor(buf, baud); + else + baud = pl2303_encode_baud_rate_direct(buf, baud_sup); /* Save resulting baud rate */ tty_encode_baud_rate(tty, baud, baud); -- cgit v0.10.2 From e58b57a354cade526266f60d3d936eed7c421c90 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sun, 29 Dec 2013 19:23:16 +0100 Subject: tty: Add C_CMSPAR(tty) Add the missing C_CMSPAR(tty) macro. Signed-off-by: Andrew Lunn Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/include/linux/tty.h b/include/linux/tty.h index 97d660e..e53e90e 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -137,6 +137,7 @@ struct tty_bufhead { #define C_CLOCAL(tty) _C_FLAG((tty), CLOCAL) #define C_CIBAUD(tty) _C_FLAG((tty), CIBAUD) #define C_CRTSCTS(tty) _C_FLAG((tty), CRTSCTS) +#define C_CMSPAR(tty) _C_FLAG((tty), CMSPAR) #define L_ISIG(tty) _L_FLAG((tty), ISIG) #define L_ICANON(tty) _L_FLAG((tty), ICANON) -- cgit v0.10.2 From ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sun, 29 Dec 2013 19:23:17 +0100 Subject: USB: serial: add Moxa UPORT 12XX/14XX/16XX driver Add a driver which supports the following Moxa USB to serial converters: * 2 ports : UPort 1250, UPort 1250I * 4 ports : UPort 1410, UPort 1450, UPort 1450I * 8 ports : UPort 1610-8, UPort 1650-8 * 16 ports : UPort 1610-16, UPort 1650-16 The UPORT devices don't directly fit the USB serial model. USB serial assumes a bulk in/out endpoint pair per serial port. Thus a dual port USB serial device is expected to have two bulk in/out pairs. The Moxa UPORT only has one pair for data transfer and places a header on each transfer over the endpoint indicating for which port the transfer relates to. There is a second endpoint pair for events, such as modem control lines changing state, setting baud rates etc. Again, a multiplexing header is used on these endpoints. Some ports need to have a kfifo explicitly allocated since the framework does not allocate one if there is no associated endpoints. The framework will however free it on unload of the module. All data transfers are made on port0, yet the locks are taken on PortN. urb->context points to PortN, even though the URB is for port0. Where possible, code from the generic driver is called. However mxuport_process_read_urb_data() is mostly a cut/paste of usb_serial_generic_process_read_urb(). The driver will attempt to load firmware from userspace and compare the available version and the running version. If the available version is newer, it will be download into RAM of the device and started. This is optional and the driver appears to work O.K. with older firmware in the devices ROM. This driver is based on the MOXA driver and retains MOXAs copyright. [jhovold@gmail.com: fix get_fw_version error path and some style issues] Signed-off-by: Andrew Lunn Reviewed-by: Johan Hovold Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index ddb9c51..3ce5c74 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -472,6 +472,35 @@ config USB_SERIAL_MOS7840 To compile this driver as a module, choose M here: the module will be called mos7840. If unsure, choose N. +config USB_SERIAL_MXUPORT + tristate "USB Moxa UPORT Serial Driver" + ---help--- + Say Y here if you want to use a MOXA UPort Serial hub. + + This driver supports: + + [2 Port] + - UPort 1250 : 2 Port RS-232/422/485 USB to Serial Hub + - UPort 1250I : 2 Port RS-232/422/485 USB to Serial Hub with + Isolation + + [4 Port] + - UPort 1410 : 4 Port RS-232 USB to Serial Hub + - UPort 1450 : 4 Port RS-232/422/485 USB to Serial Hub + - UPort 1450I : 4 Port RS-232/422/485 USB to Serial Hub with + Isolation + + [8 Port] + - UPort 1610-8 : 8 Port RS-232 USB to Serial Hub + - UPort 1650-8 : 8 Port RS-232/422/485 USB to Serial Hub + + [16 Port] + - UPort 1610-16 : 16 Port RS-232 USB to Serial Hub + - UPort 1650-16 : 16 Port RS-232/422/485 USB to Serial Hub + + To compile this driver as a module, choose M here: the + module will be called mxuport. + config USB_SERIAL_NAVMAN tristate "USB Navman GPS device" help diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index 42670f0..bfdafd3 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o obj-$(CONFIG_USB_SERIAL_METRO) += metro-usb.o obj-$(CONFIG_USB_SERIAL_MOS7720) += mos7720.o obj-$(CONFIG_USB_SERIAL_MOS7840) += mos7840.o +obj-$(CONFIG_USB_SERIAL_MXUPORT) += mxuport.o obj-$(CONFIG_USB_SERIAL_NAVMAN) += navman.o obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o obj-$(CONFIG_USB_SERIAL_OPTICON) += opticon.o diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c new file mode 100644 index 0000000..17e4f40 --- /dev/null +++ b/drivers/usb/serial/mxuport.c @@ -0,0 +1,1394 @@ +/* + * mxuport.c - MOXA UPort series driver + * + * Copyright (c) 2006 Moxa Technologies Co., Ltd. + * Copyright (c) 2013 Andrew Lunn + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Supports the following Moxa USB to serial converters: + * 2 ports : UPort 1250, UPort 1250I + * 4 ports : UPort 1410, UPort 1450, UPort 1450I + * 8 ports : UPort 1610-8, UPort 1650-8 + * 16 ports : UPort 1610-16, UPort 1650-16 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Definitions for the vendor ID and device ID */ +#define MX_USBSERIAL_VID 0x110A +#define MX_UPORT1250_PID 0x1250 +#define MX_UPORT1251_PID 0x1251 +#define MX_UPORT1410_PID 0x1410 +#define MX_UPORT1450_PID 0x1450 +#define MX_UPORT1451_PID 0x1451 +#define MX_UPORT1618_PID 0x1618 +#define MX_UPORT1658_PID 0x1658 +#define MX_UPORT1613_PID 0x1613 +#define MX_UPORT1653_PID 0x1653 + +/* Definitions for USB info */ +#define HEADER_SIZE 4 +#define EVENT_LENGTH 8 +#define DOWN_BLOCK_SIZE 64 + +/* Definitions for firmware info */ +#define VER_ADDR_1 0x20 +#define VER_ADDR_2 0x24 +#define VER_ADDR_3 0x28 + +/* Definitions for USB vendor request */ +#define RQ_VENDOR_NONE 0x00 +#define RQ_VENDOR_SET_BAUD 0x01 /* Set baud rate */ +#define RQ_VENDOR_SET_LINE 0x02 /* Set line status */ +#define RQ_VENDOR_SET_CHARS 0x03 /* Set Xon/Xoff chars */ +#define RQ_VENDOR_SET_RTS 0x04 /* Set RTS */ +#define RQ_VENDOR_SET_DTR 0x05 /* Set DTR */ +#define RQ_VENDOR_SET_XONXOFF 0x06 /* Set auto Xon/Xoff */ +#define RQ_VENDOR_SET_RX_HOST_EN 0x07 /* Set RX host enable */ +#define RQ_VENDOR_SET_OPEN 0x08 /* Set open/close port */ +#define RQ_VENDOR_PURGE 0x09 /* Purge Rx/Tx buffer */ +#define RQ_VENDOR_SET_MCR 0x0A /* Set MCR register */ +#define RQ_VENDOR_SET_BREAK 0x0B /* Set Break signal */ + +#define RQ_VENDOR_START_FW_DOWN 0x0C /* Start firmware download */ +#define RQ_VENDOR_STOP_FW_DOWN 0x0D /* Stop firmware download */ +#define RQ_VENDOR_QUERY_FW_READY 0x0E /* Query if new firmware ready */ + +#define RQ_VENDOR_SET_FIFO_DISABLE 0x0F /* Set fifo disable */ +#define RQ_VENDOR_SET_INTERFACE 0x10 /* Set interface */ +#define RQ_VENDOR_SET_HIGH_PERFOR 0x11 /* Set hi-performance */ + +#define RQ_VENDOR_ERASE_BLOCK 0x12 /* Erase flash block */ +#define RQ_VENDOR_WRITE_PAGE 0x13 /* Write flash page */ +#define RQ_VENDOR_PREPARE_WRITE 0x14 /* Prepare write flash */ +#define RQ_VENDOR_CONFIRM_WRITE 0x15 /* Confirm write flash */ +#define RQ_VENDOR_LOCATE 0x16 /* Locate the device */ + +#define RQ_VENDOR_START_ROM_DOWN 0x17 /* Start firmware download */ +#define RQ_VENDOR_ROM_DATA 0x18 /* Rom file data */ +#define RQ_VENDOR_STOP_ROM_DOWN 0x19 /* Stop firmware download */ +#define RQ_VENDOR_FW_DATA 0x20 /* Firmware data */ + +#define RQ_VENDOR_RESET_DEVICE 0x23 /* Try to reset the device */ +#define RQ_VENDOR_QUERY_FW_CONFIG 0x24 + +#define RQ_VENDOR_GET_VERSION 0x81 /* Get firmware version */ +#define RQ_VENDOR_GET_PAGE 0x82 /* Read flash page */ +#define RQ_VENDOR_GET_ROM_PROC 0x83 /* Get ROM process state */ + +#define RQ_VENDOR_GET_INQUEUE 0x84 /* Data in input buffer */ +#define RQ_VENDOR_GET_OUTQUEUE 0x85 /* Data in output buffer */ + +#define RQ_VENDOR_GET_MSR 0x86 /* Get modem status register */ + +/* Definitions for UPort event type */ +#define UPORT_EVENT_NONE 0 /* None */ +#define UPORT_EVENT_TXBUF_THRESHOLD 1 /* Tx buffer threshold */ +#define UPORT_EVENT_SEND_NEXT 2 /* Send next */ +#define UPORT_EVENT_MSR 3 /* Modem status */ +#define UPORT_EVENT_LSR 4 /* Line status */ +#define UPORT_EVENT_MCR 5 /* Modem control */ + +/* Definitions for serial event type */ +#define SERIAL_EV_CTS 0x0008 /* CTS changed state */ +#define SERIAL_EV_DSR 0x0010 /* DSR changed state */ +#define SERIAL_EV_RLSD 0x0020 /* RLSD changed state */ + +/* Definitions for modem control event type */ +#define SERIAL_EV_XOFF 0x40 /* XOFF received */ + +/* Definitions for line control of communication */ +#define MX_WORDLENGTH_5 5 +#define MX_WORDLENGTH_6 6 +#define MX_WORDLENGTH_7 7 +#define MX_WORDLENGTH_8 8 + +#define MX_PARITY_NONE 0 +#define MX_PARITY_ODD 1 +#define MX_PARITY_EVEN 2 +#define MX_PARITY_MARK 3 +#define MX_PARITY_SPACE 4 + +#define MX_STOP_BITS_1 0 +#define MX_STOP_BITS_1_5 1 +#define MX_STOP_BITS_2 2 + +#define MX_RTS_DISABLE 0x0 +#define MX_RTS_ENABLE 0x1 +#define MX_RTS_HW 0x2 +#define MX_RTS_NO_CHANGE 0x3 /* Flag, not valid register value*/ + +#define MX_INT_RS232 0 +#define MX_INT_2W_RS485 1 +#define MX_INT_RS422 2 +#define MX_INT_4W_RS485 3 + +/* Definitions for holding reason */ +#define MX_WAIT_FOR_CTS 0x0001 +#define MX_WAIT_FOR_DSR 0x0002 +#define MX_WAIT_FOR_DCD 0x0004 +#define MX_WAIT_FOR_XON 0x0008 +#define MX_WAIT_FOR_START_TX 0x0010 +#define MX_WAIT_FOR_UNTHROTTLE 0x0020 +#define MX_WAIT_FOR_LOW_WATER 0x0040 +#define MX_WAIT_FOR_SEND_NEXT 0x0080 + +#define MX_UPORT_2_PORT BIT(0) +#define MX_UPORT_4_PORT BIT(1) +#define MX_UPORT_8_PORT BIT(2) +#define MX_UPORT_16_PORT BIT(3) + +/* This structure holds all of the local port information */ +struct mxuport_port { + u8 mcr_state; /* Last MCR state */ + u8 msr_state; /* Last MSR state */ + struct mutex mutex; /* Protects mcr_state */ + spinlock_t spinlock; /* Protects msr_state */ +}; + +/* Table of devices that work with this driver */ +static const struct usb_device_id mxuport_idtable[] = { + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1250_PID), + .driver_info = MX_UPORT_2_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1251_PID), + .driver_info = MX_UPORT_2_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1410_PID), + .driver_info = MX_UPORT_4_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1450_PID), + .driver_info = MX_UPORT_4_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1451_PID), + .driver_info = MX_UPORT_4_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1618_PID), + .driver_info = MX_UPORT_8_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1658_PID), + .driver_info = MX_UPORT_8_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1613_PID), + .driver_info = MX_UPORT_16_PORT }, + { USB_DEVICE(MX_USBSERIAL_VID, MX_UPORT1653_PID), + .driver_info = MX_UPORT_16_PORT }, + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, mxuport_idtable); + +/* + * Add a four byte header containing the port number and the number of + * bytes of data in the message. Return the number of bytes in the + * buffer. + */ +static int mxuport_prepare_write_buffer(struct usb_serial_port *port, + void *dest, size_t size) +{ + u8 *buf = dest; + int count; + + count = kfifo_out_locked(&port->write_fifo, buf + HEADER_SIZE, + size - HEADER_SIZE, + &port->lock); + + put_unaligned_be16(port->port_number, buf); + put_unaligned_be16(count, buf + 2); + + dev_dbg(&port->dev, "%s - size %zd count %d\n", __func__, + size, count); + + return count + HEADER_SIZE; +} + +/* Read the given buffer in from the control pipe. */ +static int mxuport_recv_ctrl_urb(struct usb_serial *serial, + u8 request, u16 value, u16 index, + u8 *data, size_t size) +{ + int status; + + status = usb_control_msg(serial->dev, + usb_rcvctrlpipe(serial->dev, 0), + request, + (USB_DIR_IN | USB_TYPE_VENDOR | + USB_RECIP_DEVICE), value, index, + data, size, + USB_CTRL_GET_TIMEOUT); + if (status < 0) { + dev_err(&serial->interface->dev, + "%s - usb_control_msg failed (%d)\n", + __func__, status); + return status; + } + + if (status != size) { + dev_err(&serial->interface->dev, + "%s - short read (%d / %zd)\n", + __func__, status, size); + return -EIO; + } + + return status; +} + +/* Write the given buffer out to the control pipe. */ +static int mxuport_send_ctrl_data_urb(struct usb_serial *serial, + u8 request, + u16 value, u16 index, + u8 *data, size_t size) +{ + int status; + + status = usb_control_msg(serial->dev, + usb_sndctrlpipe(serial->dev, 0), + request, + (USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_DEVICE), value, index, + data, size, + USB_CTRL_SET_TIMEOUT); + if (status < 0) { + dev_err(&serial->interface->dev, + "%s - usb_control_msg failed (%d)\n", + __func__, status); + return status; + } + + if (status != size) { + dev_err(&serial->interface->dev, + "%s - short write (%d / %zd)\n", + __func__, status, size); + return -EIO; + } + + return 0; +} + +/* Send a vendor request without any data */ +static int mxuport_send_ctrl_urb(struct usb_serial *serial, + u8 request, u16 value, u16 index) +{ + return mxuport_send_ctrl_data_urb(serial, request, value, index, + NULL, 0); +} + +/* + * mxuport_throttle - throttle function of driver + * + * This function is called by the tty driver when it wants to stop the + * data being read from the port. Since all the data comes over one + * bulk in endpoint, we cannot stop submitting urbs by setting + * port->throttle. Instead tell the device to stop sending us data for + * the port. + */ +static void mxuport_throttle(struct tty_struct *tty) +{ + struct usb_serial_port *port = tty->driver_data; + struct usb_serial *serial = port->serial; + + dev_dbg(&port->dev, "%s\n", __func__); + + mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN, + 0, port->port_number); +} + +/* + * mxuport_unthrottle - unthrottle function of driver + * + * This function is called by the tty driver when it wants to resume + * the data being read from the port. Tell the device it can resume + * sending us received data from the port. + */ +static void mxuport_unthrottle(struct tty_struct *tty) +{ + + struct usb_serial_port *port = tty->driver_data; + struct usb_serial *serial = port->serial; + + dev_dbg(&port->dev, "%s\n", __func__); + + mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN, + 1, port->port_number); +} + +/* + * Processes one chunk of data received for a port. Mostly a copy of + * usb_serial_generic_process_read_urb(). + */ +static void mxuport_process_read_urb_data(struct usb_serial_port *port, + char *data, int size) +{ + int i; + + if (!port->port.console || !port->sysrq) { + tty_insert_flip_string(&port->port, data, size); + } else { + for (i = 0; i < size; i++, data++) { + if (!usb_serial_handle_sysrq_char(port, *data)) + tty_insert_flip_char(&port->port, *data, + TTY_NORMAL); + } + } + tty_flip_buffer_push(&port->port); +} + +static void mxuport_msr_event(struct usb_serial_port *port, u8 buf[4]) +{ + struct mxuport_port *mxport = usb_get_serial_port_data(port); + u8 rcv_msr_hold = buf[2] & 0xF0; + u16 rcv_msr_event = get_unaligned_be16(buf); + unsigned long flags; + + if (rcv_msr_event == 0) + return; + + /* Update MSR status */ + spin_lock_irqsave(&mxport->spinlock, flags); + + dev_dbg(&port->dev, "%s - current MSR status = 0x%x\n", + __func__, mxport->msr_state); + + if (rcv_msr_hold & UART_MSR_CTS) { + mxport->msr_state |= UART_MSR_CTS; + dev_dbg(&port->dev, "%s - CTS high\n", __func__); + } else { + mxport->msr_state &= ~UART_MSR_CTS; + dev_dbg(&port->dev, "%s - CTS low\n", __func__); + } + + if (rcv_msr_hold & UART_MSR_DSR) { + mxport->msr_state |= UART_MSR_DSR; + dev_dbg(&port->dev, "%s - DSR high\n", __func__); + } else { + mxport->msr_state &= ~UART_MSR_DSR; + dev_dbg(&port->dev, "%s - DSR low\n", __func__); + } + + if (rcv_msr_hold & UART_MSR_DCD) { + mxport->msr_state |= UART_MSR_DCD; + dev_dbg(&port->dev, "%s - DCD high\n", __func__); + } else { + mxport->msr_state &= ~UART_MSR_DCD; + dev_dbg(&port->dev, "%s - DCD low\n", __func__); + } + spin_unlock_irqrestore(&mxport->spinlock, flags); + + if (rcv_msr_event & + (SERIAL_EV_CTS | SERIAL_EV_DSR | SERIAL_EV_RLSD)) { + + if (rcv_msr_event & SERIAL_EV_CTS) { + port->icount.cts++; + dev_dbg(&port->dev, "%s - CTS change\n", __func__); + } + + if (rcv_msr_event & SERIAL_EV_DSR) { + port->icount.dsr++; + dev_dbg(&port->dev, "%s - DSR change\n", __func__); + } + + if (rcv_msr_event & SERIAL_EV_RLSD) { + port->icount.dcd++; + dev_dbg(&port->dev, "%s - DCD change\n", __func__); + } + wake_up_interruptible(&port->port.delta_msr_wait); + } +} + +static void mxuport_lsr_event(struct usb_serial_port *port, u8 buf[4]) +{ + u8 lsr_event = buf[2]; + + if (lsr_event & UART_LSR_BI) { + port->icount.brk++; + dev_dbg(&port->dev, "%s - break error\n", __func__); + } + + if (lsr_event & UART_LSR_FE) { + port->icount.frame++; + dev_dbg(&port->dev, "%s - frame error\n", __func__); + } + + if (lsr_event & UART_LSR_PE) { + port->icount.parity++; + dev_dbg(&port->dev, "%s - parity error\n", __func__); + } + + if (lsr_event & UART_LSR_OE) { + port->icount.overrun++; + dev_dbg(&port->dev, "%s - overrun error\n", __func__); + } +} + +/* + * When something interesting happens, modem control lines XON/XOFF + * etc, the device sends an event. Process these events. + */ +static void mxuport_process_read_urb_event(struct usb_serial_port *port, + u8 buf[4], u32 event) +{ + dev_dbg(&port->dev, "%s - receive event : %04x\n", __func__, event); + + switch (event) { + case UPORT_EVENT_SEND_NEXT: + /* + * Sent as part of the flow control on device buffers. + * Not currently used. + */ + break; + case UPORT_EVENT_MSR: + mxuport_msr_event(port, buf); + break; + case UPORT_EVENT_LSR: + mxuport_lsr_event(port, buf); + break; + case UPORT_EVENT_MCR: + /* + * Event to indicate a change in XON/XOFF from the + * peer. Currently not used. We just continue + * sending the device data and it will buffer it if + * needed. This event could be used for flow control + * between the host and the device. + */ + break; + default: + dev_dbg(&port->dev, "Unexpected event\n"); + break; + } +} + +/* + * One URB can contain data for multiple ports. Demultiplex the data, + * checking the port exists, is opened and the message is valid. + */ +static void mxuport_process_read_urb_demux_data(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + struct usb_serial *serial = port->serial; + u8 *data = urb->transfer_buffer; + u8 *end = data + urb->actual_length; + struct usb_serial_port *demux_port; + u8 *ch; + u16 rcv_port; + u16 rcv_len; + + while (data < end) { + if (data + HEADER_SIZE > end) { + dev_warn(&port->dev, "%s - message with short header\n", + __func__); + return; + } + + rcv_port = get_unaligned_be16(data); + if (rcv_port >= serial->num_ports) { + dev_warn(&port->dev, "%s - message for invalid port\n", + __func__); + return; + } + + demux_port = serial->port[rcv_port]; + rcv_len = get_unaligned_be16(data + 2); + if (!rcv_len || data + HEADER_SIZE + rcv_len > end) { + dev_warn(&port->dev, "%s - short data\n", __func__); + return; + } + + if (test_bit(ASYNCB_INITIALIZED, &demux_port->port.flags)) { + ch = data + HEADER_SIZE; + mxuport_process_read_urb_data(demux_port, ch, rcv_len); + } else { + dev_dbg(&demux_port->dev, "%s - data for closed port\n", + __func__); + } + data += HEADER_SIZE + rcv_len; + } +} + +/* + * One URB can contain events for multiple ports. Demultiplex the event, + * checking the port exists, and is opened. + */ +static void mxuport_process_read_urb_demux_event(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + struct usb_serial *serial = port->serial; + u8 *data = urb->transfer_buffer; + u8 *end = data + urb->actual_length; + struct usb_serial_port *demux_port; + u8 *ch; + u16 rcv_port; + u16 rcv_event; + + while (data < end) { + if (data + EVENT_LENGTH > end) { + dev_warn(&port->dev, "%s - message with short event\n", + __func__); + return; + } + + rcv_port = get_unaligned_be16(data); + if (rcv_port >= serial->num_ports) { + dev_warn(&port->dev, "%s - message for invalid port\n", + __func__); + return; + } + + demux_port = serial->port[rcv_port]; + if (test_bit(ASYNCB_INITIALIZED, &demux_port->port.flags)) { + ch = data + HEADER_SIZE; + rcv_event = get_unaligned_be16(data + 2); + mxuport_process_read_urb_event(demux_port, ch, + rcv_event); + } else { + dev_dbg(&demux_port->dev, + "%s - event for closed port\n", __func__); + } + data += EVENT_LENGTH; + } +} + +/* + * This is called when we have received data on the bulk in + * endpoint. Depending on which port it was received on, it can + * contain serial data or events. + */ +static void mxuport_process_read_urb(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + struct usb_serial *serial = port->serial; + + if (port == serial->port[0]) + mxuport_process_read_urb_demux_data(urb); + + if (port == serial->port[1]) + mxuport_process_read_urb_demux_event(urb); +} + +/* + * Ask the device how many bytes it has queued to be sent out. If + * there are none, return true. + */ +static bool mxuport_tx_empty(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + bool is_empty = true; + u32 txlen; + u8 *len_buf; + int err; + + len_buf = kzalloc(4, GFP_KERNEL); + if (!len_buf) + goto out; + + err = mxuport_recv_ctrl_urb(serial, RQ_VENDOR_GET_OUTQUEUE, 0, + port->port_number, len_buf, 4); + if (err < 0) + goto out; + + txlen = get_unaligned_be32(len_buf); + dev_dbg(&port->dev, "%s - tx len = %u\n", __func__, txlen); + + if (txlen != 0) + is_empty = false; + +out: + kfree(len_buf); + return is_empty; +} + +static int mxuport_set_mcr(struct usb_serial_port *port, u8 mcr_state) +{ + struct usb_serial *serial = port->serial; + int err; + + dev_dbg(&port->dev, "%s - %02x\n", __func__, mcr_state); + + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_MCR, + mcr_state, port->port_number); + if (err) + dev_err(&port->dev, "%s - failed to change MCR\n", __func__); + + return err; +} + +static int mxuport_set_dtr(struct usb_serial_port *port, int on) +{ + struct mxuport_port *mxport = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + int err; + + mutex_lock(&mxport->mutex); + + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_DTR, + !!on, port->port_number); + if (!err) { + if (on) + mxport->mcr_state |= UART_MCR_DTR; + else + mxport->mcr_state &= ~UART_MCR_DTR; + } + + mutex_unlock(&mxport->mutex); + + return err; +} + +static int mxuport_set_rts(struct usb_serial_port *port, u8 state) +{ + struct mxuport_port *mxport = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + int err; + u8 mcr_state; + + mutex_lock(&mxport->mutex); + mcr_state = mxport->mcr_state; + + switch (state) { + case MX_RTS_DISABLE: + mcr_state &= ~UART_MCR_RTS; + break; + case MX_RTS_ENABLE: + mcr_state |= UART_MCR_RTS; + break; + case MX_RTS_HW: + /* + * Do not update mxport->mcr_state when doing hardware + * flow control. + */ + break; + default: + /* + * Should not happen, but somebody might try passing + * MX_RTS_NO_CHANGE, which is not valid. + */ + err = -EINVAL; + goto out; + } + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RTS, + state, port->port_number); + if (!err) + mxport->mcr_state = mcr_state; + +out: + mutex_unlock(&mxport->mutex); + + return err; +} + +static void mxuport_dtr_rts(struct usb_serial_port *port, int on) +{ + struct mxuport_port *mxport = usb_get_serial_port_data(port); + u8 mcr_state; + int err; + + mutex_lock(&mxport->mutex); + mcr_state = mxport->mcr_state; + + if (on) + mcr_state |= (UART_MCR_RTS | UART_MCR_DTR); + else + mcr_state &= ~(UART_MCR_RTS | UART_MCR_DTR); + + err = mxuport_set_mcr(port, mcr_state); + if (!err) + mxport->mcr_state = mcr_state; + + mutex_unlock(&mxport->mutex); +} + +static int mxuport_tiocmset(struct tty_struct *tty, unsigned int set, + unsigned int clear) +{ + struct usb_serial_port *port = tty->driver_data; + struct mxuport_port *mxport = usb_get_serial_port_data(port); + int err; + u8 mcr_state; + + mutex_lock(&mxport->mutex); + mcr_state = mxport->mcr_state; + + if (set & TIOCM_RTS) + mcr_state |= UART_MCR_RTS; + + if (set & TIOCM_DTR) + mcr_state |= UART_MCR_DTR; + + if (clear & TIOCM_RTS) + mcr_state &= ~UART_MCR_RTS; + + if (clear & TIOCM_DTR) + mcr_state &= ~UART_MCR_DTR; + + err = mxuport_set_mcr(port, mcr_state); + if (!err) + mxport->mcr_state = mcr_state; + + mutex_unlock(&mxport->mutex); + + return err; +} + +static int mxuport_tiocmget(struct tty_struct *tty) +{ + struct mxuport_port *mxport; + struct usb_serial_port *port = tty->driver_data; + unsigned int result; + unsigned long flags; + unsigned int msr; + unsigned int mcr; + + mxport = usb_get_serial_port_data(port); + + mutex_lock(&mxport->mutex); + spin_lock_irqsave(&mxport->spinlock, flags); + + msr = mxport->msr_state; + mcr = mxport->mcr_state; + + spin_unlock_irqrestore(&mxport->spinlock, flags); + mutex_unlock(&mxport->mutex); + + result = (((mcr & UART_MCR_DTR) ? TIOCM_DTR : 0) | /* 0x002 */ + ((mcr & UART_MCR_RTS) ? TIOCM_RTS : 0) | /* 0x004 */ + ((msr & UART_MSR_CTS) ? TIOCM_CTS : 0) | /* 0x020 */ + ((msr & UART_MSR_DCD) ? TIOCM_CAR : 0) | /* 0x040 */ + ((msr & UART_MSR_RI) ? TIOCM_RI : 0) | /* 0x080 */ + ((msr & UART_MSR_DSR) ? TIOCM_DSR : 0)); /* 0x100 */ + + dev_dbg(&port->dev, "%s - 0x%04x\n", __func__, result); + + return result; +} + +static int mxuport_set_termios_flow(struct tty_struct *tty, + struct ktermios *old_termios, + struct usb_serial_port *port, + struct usb_serial *serial) +{ + u8 xon = START_CHAR(tty); + u8 xoff = STOP_CHAR(tty); + int enable; + int err; + u8 *buf; + u8 rts; + + buf = kmalloc(2, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + /* S/W flow control settings */ + if (I_IXOFF(tty) || I_IXON(tty)) { + enable = 1; + buf[0] = xon; + buf[1] = xoff; + + err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_SET_CHARS, + 0, port->port_number, + buf, 2); + if (err) + goto out; + + dev_dbg(&port->dev, "%s - XON = 0x%02x, XOFF = 0x%02x\n", + __func__, xon, xoff); + } else { + enable = 0; + } + + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_XONXOFF, + enable, port->port_number); + if (err) + goto out; + + rts = MX_RTS_NO_CHANGE; + + /* H/W flow control settings */ + if (!old_termios || + C_CRTSCTS(tty) != (old_termios->c_cflag & CRTSCTS)) { + if (C_CRTSCTS(tty)) + rts = MX_RTS_HW; + else + rts = MX_RTS_ENABLE; + } + + if (C_BAUD(tty)) { + if (old_termios && (old_termios->c_cflag & CBAUD) == B0) { + /* Raise DTR and RTS */ + if (C_CRTSCTS(tty)) + rts = MX_RTS_HW; + else + rts = MX_RTS_ENABLE; + mxuport_set_dtr(port, 1); + } + } else { + /* Drop DTR and RTS */ + rts = MX_RTS_DISABLE; + mxuport_set_dtr(port, 0); + } + + if (rts != MX_RTS_NO_CHANGE) + err = mxuport_set_rts(port, rts); + +out: + kfree(buf); + return err; +} + +static void mxuport_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, + struct ktermios *old_termios) +{ + struct usb_serial *serial = port->serial; + u8 *buf; + u8 data_bits; + u8 stop_bits; + u8 parity; + int baud; + int err; + + if (old_termios && + !tty_termios_hw_change(&tty->termios, old_termios) && + tty->termios.c_iflag == old_termios->c_iflag) { + dev_dbg(&port->dev, "%s - nothing to change\n", __func__); + return; + } + + buf = kmalloc(4, GFP_KERNEL); + if (!buf) + return; + + /* Set data bit of termios */ + switch (C_CSIZE(tty)) { + case CS5: + data_bits = MX_WORDLENGTH_5; + break; + case CS6: + data_bits = MX_WORDLENGTH_6; + break; + case CS7: + data_bits = MX_WORDLENGTH_7; + break; + case CS8: + default: + data_bits = MX_WORDLENGTH_8; + break; + } + + /* Set parity of termios */ + if (C_PARENB(tty)) { + if (C_CMSPAR(tty)) { + if (C_PARODD(tty)) + parity = MX_PARITY_MARK; + else + parity = MX_PARITY_SPACE; + } else { + if (C_PARODD(tty)) + parity = MX_PARITY_ODD; + else + parity = MX_PARITY_EVEN; + } + } else { + parity = MX_PARITY_NONE; + } + + /* Set stop bit of termios */ + if (C_CSTOPB(tty)) + stop_bits = MX_STOP_BITS_2; + else + stop_bits = MX_STOP_BITS_1; + + buf[0] = data_bits; + buf[1] = parity; + buf[2] = stop_bits; + buf[3] = 0; + + err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_SET_LINE, + 0, port->port_number, buf, 4); + if (err) + goto out; + + err = mxuport_set_termios_flow(tty, old_termios, port, serial); + if (err) + goto out; + + baud = tty_get_baud_rate(tty); + if (!baud) + baud = 9600; + + /* Note: Little Endian */ + put_unaligned_le32(baud, buf); + + err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_SET_BAUD, + 0, port->port_number, + buf, 4); + if (err) + goto out; + + dev_dbg(&port->dev, "baud_rate : %d\n", baud); + dev_dbg(&port->dev, "data_bits : %d\n", data_bits); + dev_dbg(&port->dev, "parity : %d\n", parity); + dev_dbg(&port->dev, "stop_bits : %d\n", stop_bits); + +out: + kfree(buf); +} + +/* + * Determine how many ports this device has dynamically. It will be + * called after the probe() callback is called, but before attach(). + */ +static int mxuport_calc_num_ports(struct usb_serial *serial) +{ + unsigned long features = (unsigned long)usb_get_serial_data(serial); + + if (features & MX_UPORT_2_PORT) + return 2; + if (features & MX_UPORT_4_PORT) + return 4; + if (features & MX_UPORT_8_PORT) + return 8; + if (features & MX_UPORT_16_PORT) + return 16; + + return 0; +} + +/* Get the version of the firmware currently running. */ +static int mxuport_get_fw_version(struct usb_serial *serial, u32 *version) +{ + u8 *ver_buf; + int err; + + ver_buf = kzalloc(4, GFP_KERNEL); + if (!ver_buf) + return -ENOMEM; + + /* Get firmware version from SDRAM */ + err = mxuport_recv_ctrl_urb(serial, RQ_VENDOR_GET_VERSION, 0, 0, + ver_buf, 4); + if (err != 4) { + err = -EIO; + goto out; + } + + *version = (ver_buf[0] << 16) | (ver_buf[1] << 8) | ver_buf[2]; + err = 0; +out: + kfree(ver_buf); + return err; +} + +/* Given a firmware blob, download it to the device. */ +static int mxuport_download_fw(struct usb_serial *serial, + const struct firmware *fw_p) +{ + u8 *fw_buf; + size_t txlen; + size_t fwidx; + int err; + + fw_buf = kmalloc(DOWN_BLOCK_SIZE, GFP_KERNEL); + if (!fw_buf) + return -ENOMEM; + + dev_dbg(&serial->interface->dev, "Starting firmware download...\n"); + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_START_FW_DOWN, 0, 0); + if (err) + goto out; + + fwidx = 0; + do { + txlen = min_t(size_t, (fw_p->size - fwidx), DOWN_BLOCK_SIZE); + + memcpy(fw_buf, &fw_p->data[fwidx], txlen); + err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_FW_DATA, + 0, 0, fw_buf, txlen); + if (err) { + mxuport_send_ctrl_urb(serial, RQ_VENDOR_STOP_FW_DOWN, + 0, 0); + goto out; + } + + fwidx += txlen; + usleep_range(1000, 2000); + + } while (fwidx < fw_p->size); + + msleep(1000); + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_STOP_FW_DOWN, 0, 0); + if (err) + goto out; + + msleep(1000); + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_QUERY_FW_READY, 0, 0); + +out: + kfree(fw_buf); + return err; +} + +static int mxuport_probe(struct usb_serial *serial, + const struct usb_device_id *id) +{ + u16 productid = le16_to_cpu(serial->dev->descriptor.idProduct); + const struct firmware *fw_p = NULL; + u32 version; + int local_ver; + char buf[32]; + int err; + + /* Load our firmware */ + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_QUERY_FW_CONFIG, 0, 0); + if (err) { + mxuport_send_ctrl_urb(serial, RQ_VENDOR_RESET_DEVICE, 0, 0); + return err; + } + + err = mxuport_get_fw_version(serial, &version); + if (err < 0) + return err; + + dev_dbg(&serial->interface->dev, "Device firmware version v%x.%x.%x\n", + (version & 0xff0000) >> 16, + (version & 0xff00) >> 8, + (version & 0xff)); + + snprintf(buf, sizeof(buf) - 1, "moxa/moxa-%04x.fw", productid); + + err = request_firmware(&fw_p, buf, &serial->interface->dev); + if (err) { + dev_warn(&serial->interface->dev, "Firmware %s not found\n", + buf); + + /* Use the firmware already in the device */ + err = 0; + } else { + local_ver = ((fw_p->data[VER_ADDR_1] << 16) | + (fw_p->data[VER_ADDR_2] << 8) | + fw_p->data[VER_ADDR_3]); + dev_dbg(&serial->interface->dev, + "Available firmware version v%x.%x.%x\n", + fw_p->data[VER_ADDR_1], fw_p->data[VER_ADDR_2], + fw_p->data[VER_ADDR_3]); + if (local_ver > version) { + err = mxuport_download_fw(serial, fw_p); + if (err) + goto out; + err = mxuport_get_fw_version(serial, &version); + if (err < 0) + goto out; + } + } + + dev_info(&serial->interface->dev, + "Using device firmware version v%x.%x.%x\n", + (version & 0xff0000) >> 16, + (version & 0xff00) >> 8, + (version & 0xff)); + + /* + * Contains the features of this hardware. Store away for + * later use, eg, number of ports. + */ + usb_set_serial_data(serial, (void *)id->driver_info); +out: + if (fw_p) + release_firmware(fw_p); + return err; +} + + +static int mxuport_port_probe(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + struct mxuport_port *mxport; + int err; + + mxport = devm_kzalloc(&port->dev, sizeof(struct mxuport_port), + GFP_KERNEL); + if (!mxport) + return -ENOMEM; + + mutex_init(&mxport->mutex); + spin_lock_init(&mxport->spinlock); + + /* Set the port private data */ + usb_set_serial_port_data(port, mxport); + + /* Set FIFO (Enable) */ + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_FIFO_DISABLE, + 0, port->port_number); + if (err) + return err; + + /* Set transmission mode (Hi-Performance) */ + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_HIGH_PERFOR, + 0, port->port_number); + if (err) + return err; + + /* Set interface (RS-232) */ + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_INTERFACE, + MX_INT_RS232, + port->port_number); + if (err) + return err; + + return 0; +} + +static int mxuport_alloc_write_urb(struct usb_serial *serial, + struct usb_serial_port *port, + struct usb_serial_port *port0, + int j) +{ + struct usb_device *dev = interface_to_usbdev(serial->interface); + + set_bit(j, &port->write_urbs_free); + port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL); + if (!port->write_urbs[j]) + return -ENOMEM; + + port->bulk_out_buffers[j] = kmalloc(port0->bulk_out_size, GFP_KERNEL); + if (!port->bulk_out_buffers[j]) + return -ENOMEM; + + usb_fill_bulk_urb(port->write_urbs[j], dev, + usb_sndbulkpipe(dev, port->bulk_out_endpointAddress), + port->bulk_out_buffers[j], + port->bulk_out_size, + serial->type->write_bulk_callback, + port); + return 0; +} + + +static int mxuport_alloc_write_urbs(struct usb_serial *serial, + struct usb_serial_port *port, + struct usb_serial_port *port0) +{ + int j; + int ret; + + for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j) { + ret = mxuport_alloc_write_urb(serial, port, port0, j); + if (ret) + return ret; + } + return 0; +} + + +static int mxuport_attach(struct usb_serial *serial) +{ + struct usb_serial_port *port0 = serial->port[0]; + struct usb_serial_port *port1 = serial->port[1]; + struct usb_serial_port *port; + int err; + int i; + int j; + + /* + * Throw away all but the first allocated write URBs so we can + * set them up again to fit the multiplexing scheme. + */ + for (i = 1; i < serial->num_bulk_out; ++i) { + port = serial->port[i]; + for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j) { + usb_free_urb(port->write_urbs[j]); + kfree(port->bulk_out_buffers[j]); + port->write_urbs[j] = NULL; + port->bulk_out_buffers[j] = NULL; + } + port->write_urbs_free = 0; + } + + /* + * All write data is sent over the first bulk out endpoint, + * with an added header to indicate the port. Allocate URBs + * for each port to the first bulk out endpoint. + */ + for (i = 1; i < serial->num_ports; ++i) { + port = serial->port[i]; + port->bulk_out_size = port0->bulk_out_size; + port->bulk_out_endpointAddress = + port0->bulk_out_endpointAddress; + + err = mxuport_alloc_write_urbs(serial, port, port0); + if (err) + return err; + + port->write_urb = port->write_urbs[0]; + port->bulk_out_buffer = port->bulk_out_buffers[0]; + + /* + * Ensure each port has a fifo. The framework only + * allocates a fifo to ports with a bulk out endpoint, + * where as we need one for every port. + */ + if (!kfifo_initialized(&port->write_fifo)) { + err = kfifo_alloc(&port->write_fifo, PAGE_SIZE, + GFP_KERNEL); + if (err) + return err; + } + } + + /* + * All data from the ports is received on the first bulk in + * endpoint, with a multiplex header. The second bulk in is + * used for events. + * + * Start to read from the device. + */ + err = usb_serial_generic_submit_read_urbs(port0, GFP_KERNEL); + if (err) + return err; + + err = usb_serial_generic_submit_read_urbs(port1, GFP_KERNEL); + if (err) { + usb_serial_generic_close(port0); + return err; + } + + return 0; +} + +static int mxuport_open(struct tty_struct *tty, struct usb_serial_port *port) +{ + struct mxuport_port *mxport = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + int err; + + /* Set receive host (enable) */ + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN, + 1, port->port_number); + if (err) + return err; + + err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_OPEN, + 1, port->port_number); + if (err) { + mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN, + 0, port->port_number); + return err; + } + + /* Initial port termios */ + mxuport_set_termios(tty, port, NULL); + + /* + * TODO: use RQ_VENDOR_GET_MSR, once we know what it + * returns. + */ + mxport->msr_state = 0; + + return err; +} + +static void mxuport_close(struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + + mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_OPEN, 0, + port->port_number); + + mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN, 0, + port->port_number); +} + +/* Send a break to the port. */ +static void mxuport_break_ctl(struct tty_struct *tty, int break_state) +{ + struct usb_serial_port *port = tty->driver_data; + struct usb_serial *serial = port->serial; + int enable; + + if (break_state == -1) { + enable = 1; + dev_dbg(&port->dev, "%s - sending break\n", __func__); + } else { + enable = 0; + dev_dbg(&port->dev, "%s - clearing break\n", __func__); + } + + mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_BREAK, + enable, port->port_number); +} + +static int mxuport_resume(struct usb_serial *serial) +{ + struct usb_serial_port *port; + int c = 0; + int i; + int r; + + for (i = 0; i < 2; i++) { + port = serial->port[i]; + + r = usb_serial_generic_submit_read_urbs(port, GFP_NOIO); + if (r < 0) + c++; + } + + for (i = 0; i < serial->num_ports; i++) { + port = serial->port[i]; + if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) + continue; + + r = usb_serial_generic_write_start(port, GFP_NOIO); + if (r < 0) + c++; + } + + return c ? -EIO : 0; +} + +static struct usb_serial_driver mxuport_device = { + .driver = { + .owner = THIS_MODULE, + .name = "mxuport", + }, + .description = "MOXA UPort", + .id_table = mxuport_idtable, + .num_ports = 0, + .probe = mxuport_probe, + .port_probe = mxuport_port_probe, + .attach = mxuport_attach, + .calc_num_ports = mxuport_calc_num_ports, + .open = mxuport_open, + .close = mxuport_close, + .set_termios = mxuport_set_termios, + .break_ctl = mxuport_break_ctl, + .tx_empty = mxuport_tx_empty, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, + .throttle = mxuport_throttle, + .unthrottle = mxuport_unthrottle, + .tiocmget = mxuport_tiocmget, + .tiocmset = mxuport_tiocmset, + .dtr_rts = mxuport_dtr_rts, + .process_read_urb = mxuport_process_read_urb, + .prepare_write_buffer = mxuport_prepare_write_buffer, + .resume = mxuport_resume, +}; + +static struct usb_serial_driver *const serial_drivers[] = { + &mxuport_device, NULL +}; + +module_usb_serial_driver(serial_drivers, mxuport_idtable); + +MODULE_AUTHOR("Andrew Lunn "); +MODULE_AUTHOR(""); +MODULE_LICENSE("GPL"); -- cgit v0.10.2 From 619c43543a946dd2f094d2f1bfc81a3fd48356d8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 29 Dec 2013 19:23:18 +0100 Subject: USB: pl2303: use C_CMSPAR macro Use the new C_CMSPAR macro for consistency. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 28e5986..253cc9c 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -523,7 +523,7 @@ static void pl2303_set_termios(struct tty_struct *tty, /* For reference buf[5]=3 is mark parity */ /* For reference buf[5]=4 is space parity */ if (C_PARODD(tty)) { - if (tty->termios.c_cflag & CMSPAR) { + if (C_CMSPAR(tty)) { buf[5] = 3; dev_dbg(&port->dev, "parity = mark\n"); } else { @@ -531,7 +531,7 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "parity = odd\n"); } } else { - if (tty->termios.c_cflag & CMSPAR) { + if (C_CMSPAR(tty)) { buf[5] = 4; dev_dbg(&port->dev, "parity = space\n"); } else { -- cgit v0.10.2 From f38f1418f9efb4d7b1fe20ca9de16679271a3705 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Mon, 30 Dec 2013 20:00:54 +0530 Subject: USB: iowarrior: fix spelling mistake in comment Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index d36f34e..367725c 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -300,7 +300,7 @@ static ssize_t iowarrior_read(struct file *file, char __user *buffer, do { atomic_set(&dev->overflow_flag, 0); if ((read_idx = read_index(dev)) == -1) { - /* queue emty */ + /* queue empty */ if (file->f_flags & O_NONBLOCK) return -EAGAIN; else { -- cgit v0.10.2 From 5995b28316c62f4b5ee82e5ac4c6445ab3aecec4 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 30 Dec 2013 10:49:30 +0530 Subject: usb: ehci: Cleanup usb-ehci-orion.h header Commit c02cecb92ed4 ("ARM: orion: move platform_data definitions") moved the file to the current location but forgot to remove the pointer to its previous location. Clean it up. While at it also change the header file protection macros appropriately. Signed-off-by: Sachin Kamat Signed-off-by: Greg Kroah-Hartman diff --git a/include/linux/platform_data/usb-ehci-orion.h b/include/linux/platform_data/usb-ehci-orion.h index 6fc78e4..52b0acb 100644 --- a/include/linux/platform_data/usb-ehci-orion.h +++ b/include/linux/platform_data/usb-ehci-orion.h @@ -1,13 +1,11 @@ /* - * arch/arm/plat-orion/include/plat/ehci-orion.h - * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ -#ifndef __PLAT_EHCI_ORION_H -#define __PLAT_EHCI_ORION_H +#ifndef __USB_EHCI_ORION_H +#define __USB_EHCI_ORION_H #include -- cgit v0.10.2 From 292abc90f2c0547051a07e96ef98c3aad8f73097 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Tue, 31 Dec 2013 21:58:11 +0530 Subject: USB: chipidea: add guard macro to ci_hdrc_imx.h Add guard macro to driver/usb/chipidea/ci_hdrc_imx.h Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h index c727159..996ec93 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.h +++ b/drivers/usb/chipidea/ci_hdrc_imx.h @@ -9,6 +9,9 @@ * http://www.gnu.org/copyleft/gpl.html */ +#ifndef __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H +#define __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H + struct imx_usbmisc_data { int index; @@ -18,3 +21,5 @@ struct imx_usbmisc_data { int imx_usbmisc_init(struct imx_usbmisc_data *); int imx_usbmisc_init_post(struct imx_usbmisc_data *); + +#endif /* __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H */ -- cgit v0.10.2 From 3fb4c07a52d7d0bf7d880538c11629e69fc8be2e Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Mon, 30 Dec 2013 20:49:19 +0530 Subject: USB: yurex: fix spelling mistake in comment fix spelling mistake in comment Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index b6ab515..0609114 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -464,7 +464,7 @@ static ssize_t yurex_write(struct file *file, const char *user_buffer, size_t co goto error; mutex_lock(&dev->io_mutex); - if (!dev->interface) { /* alreaday disconnected */ + if (!dev->interface) { /* already disconnected */ mutex_unlock(&dev->io_mutex); retval = -ENODEV; goto error; -- cgit v0.10.2 From 45868b3a98605172ebe6367f602dca347e1d2904 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Thu, 2 Jan 2014 19:25:50 +0530 Subject: USB: misc: idmouse: correct spelling mistake in error string Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index ce97838..49235bd 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -386,7 +386,7 @@ static int idmouse_probe(struct usb_interface *interface, result = usb_register_dev(interface, &idmouse_class); if (result) { /* something prevented us from registering this device */ - dev_err(&interface->dev, "Unble to allocate minor number.\n"); + dev_err(&interface->dev, "Unable to allocate minor number.\n"); usb_set_intfdata(interface, NULL); idmouse_delete(dev); return result; -- cgit v0.10.2 From 5ae477b05fb5edd059f709ff0a7a2f40fb2827d1 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Thu, 2 Jan 2014 19:27:47 +0530 Subject: USB: musb: correct spelling mistakes in comment and error string Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index d9692f7..ef023b9 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -77,7 +77,7 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src) bfin_write16(USB_DMA_REG(epnum, USB_DMAx_CTRL), dma_reg); SSYNC(); - /* Wait for compelete */ + /* Wait for complete */ while (!(bfin_read_USB_DMA_INTERRUPT() & (1 << epnum))) cpu_relax(); @@ -131,7 +131,7 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst) bfin_write16(USB_DMA_REG(epnum, USB_DMAx_CTRL), dma_reg); SSYNC(); - /* Wait for compelete */ + /* Wait for complete */ while (!(bfin_read_USB_DMA_INTERRUPT() & (1 << epnum))) cpu_relax(); diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 5942f00..091eab5 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -83,7 +83,7 @@ * This gets many kinds of configuration information: * - Kconfig for everything user-configurable * - platform_device for addressing, irq, and platform_data - * - platform_data is mostly for board-specific informarion + * - platform_data is mostly for board-specific information * (plus recentrly, SOC or family details) * * Most of the conditional compilation will (someday) vanish. @@ -1187,7 +1187,7 @@ fifo_setup(struct musb *musb, struct musb_hw_ep *hw_ep, musb_writeb(mbase, MUSB_INDEX, hw_ep->epnum); /* EP0 reserved endpoint for control, bidirectional; - * EP1 reserved for bulk, two unidirection halves. + * EP1 reserved for bulk, two unidirectional halves. */ if (hw_ep->epnum == 1) musb->bulk_ep = hw_ep; @@ -1872,7 +1872,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) /* The musb_platform_init() call: * - adjusts musb->mregs * - sets the musb->isr - * - may initialize an integrated tranceiver + * - may initialize an integrated transceiver * - initializes musb->xceiv, usually by otg_get_phy() * - stops powering VBUS * diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index a12bd30..f889296 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -615,7 +615,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) dc = dma_request_slave_channel(dev, str); if (!dc) { - dev_err(dev, "Falied to request %s.\n", str); + dev_err(dev, "Failed to request %s.\n", str); ret = -EPROBE_DEFER; goto err; } diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 01e7caf..0e30dc2 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2013,7 +2013,7 @@ static int musb_schedule( head = &musb->out_bulk; /* Enable bulk RX/TX NAK timeout scheme when bulk requests are - * multiplexed. This scheme doen't work in high speed to full + * multiplexed. This scheme does not work in high speed to full * speed scenario as NAK interrupts are not coming from a * full speed device connected to a high speed device. * NAK timeout interval is 8 (128 uframe or 16ms) for HS and -- cgit v0.10.2 From cd8c50532a42065339be1fe550e66b89d7ffd14f Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Thu, 2 Jan 2014 19:29:24 +0530 Subject: USB: serial: correct spelling mistakes in comments Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index 6e320ce..80a9845 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -10,9 +10,9 @@ * * The device works as an standard CDC device, it has 2 interfaces, the first * one is for firmware access and the second is the serial one. - * The protocol is very simply, there are two posibilities reading or writing. + * The protocol is very simply, there are two possibilities reading or writing. * When writing the first urb must have a Header that starts with 0x20 0x29 the - * next two bytes must say how much data will be sended. + * next two bytes must say how much data will be sent. * When reading the process is almost equal except that the header starts with * 0x00 0x20. * @@ -31,15 +31,15 @@ * * The driver registers himself with the USB-serial core and the USB Core. I had * to implement a probe function against USB-serial, because other way, the - * driver was attaching himself to both interfaces. I have tryed with different + * driver was attaching himself to both interfaces. I have tried with different * configurations of usb_serial_driver with out exit, only the probe function * could handle this correctly. * * I have taken some info from a Greg Kroah-Hartman article: * http://www.linuxjournal.com/article/6573 * And from Linux Device Driver Kit CD, which is a great work, the authors taken - * the work to recompile lots of information an knowladge in drivers development - * and made it all avaible inside a cd. + * the work to recompile lots of information an knowledge in drivers development + * and made it all available inside a cd. * URL: http://kernel.org/pub/linux/kernel/people/gregkh/ddk/ * */ diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index bc77e95..9d90926 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -71,7 +71,7 @@ struct ark3116_private { __u32 lcr; /* line control register value */ __u32 hcr; /* handshake control register (0x8) * value */ - __u32 mcr; /* modem contol register value */ + __u32 mcr; /* modem control register value */ /* protects the status values below */ spinlock_t status_lock; @@ -609,7 +609,7 @@ static void ark3116_read_int_callback(struct urb *urb) } -/* Data comes in via the bulk (data) URB, erors/interrupts via the int URB. +/* Data comes in via the bulk (data) URB, errors/interrupts via the int URB. * This means that we cannot be sure which data byte has an associated error * condition, so we report an error for all data in the next bulk read. * diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index 84217e7..336a105 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -18,7 +18,7 @@ * driver * * TODO: - * -- Add true modem contol line query capability. Currently we track the + * -- Add true modem control line query capability. Currently we track the * states reported by the interrupt and the states we request. * -- Add support for flush commands */ diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 6e1b69d..1a71363 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -285,7 +285,7 @@ static void cyberjack_read_int_callback(struct urb *urb) goto resubmit; } - /* "+=" is probably more fault tollerant than "=" */ + /* "+=" is probably more fault tolerant than "=" */ priv->rdtodo += size; dev_dbg(dev, "%s - rdtodo: %d\n", __func__, priv->rdtodo); diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index f4ee74d..fac8f09 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -275,7 +275,7 @@ static int pkt_add(struct garmin_data *garmin_data_p, unsigned long flags; struct garmin_packet *pkt; - /* process only packets containg data ... */ + /* process only packets containing data ... */ if (data_length) { pkt = kmalloc(sizeof(struct garmin_packet)+data_length, GFP_ATOMIC); @@ -1144,7 +1144,7 @@ static void garmin_read_process(struct garmin_data *garmin_data_p, unsigned long flags; if (garmin_data_p->flags & FLAGS_DROP_DATA) { - /* abort-transfer cmd is actice */ + /* abort-transfer cmd is active */ dev_dbg(&garmin_data_p->port->dev, "%s - pkt dropped\n", __func__); } else if (garmin_data_p->state != STATE_DISCONNECTED && garmin_data_p->state != STATE_RESET) { diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 57c439a..fa0c3c1 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -770,7 +770,7 @@ uart_enable_failed: return status; } -/* Diables the IUU UART (a.k.a. the Phoenix voiderface) */ +/* Disables the IUU UART (a.k.a. the Phoenix voiderface) */ static int iuu_uart_off(struct usb_serial_port *port) { int status; diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 6125fce..b0f6f5ed 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -165,7 +165,7 @@ static void keyspan_set_termios(struct tty_struct *tty, if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk, NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { /* FIXME - more to do here to ensure rate changes cleanly */ - /* FIXME - calcuate exact rate from divisor ? */ + /* FIXME - calculate exact rate from divisor ? */ p_priv->baud = baud_rate; } else baud_rate = tty_termios_baud_rate(old_termios); diff --git a/drivers/usb/serial/keyspan_usa26msg.h b/drivers/usb/serial/keyspan_usa26msg.h index 3808727..09e21e8 100644 --- a/drivers/usb/serial/keyspan_usa26msg.h +++ b/drivers/usb/serial/keyspan_usa26msg.h @@ -62,7 +62,7 @@ or: (b) 0x80 bit set - indiates that the bytes following alternate data and + indicates that the bytes following alternate data and status bytes: STAT DATA STAT DATA STAT DATA STAT DATA ... diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index ee68191..5646fa5 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1,6 +1,6 @@ /* * mos7720.c - * Controls the Moschip 7720 usb to dual port serial convertor + * Controls the Moschip 7720 usb to dual port serial converter * * Copyright 2006 Moschip Semiconductor Tech. Ltd. * @@ -46,7 +46,7 @@ #define MOS_WRITE 0x0E #define MOS_READ 0x0D -/* Interrupt Rotinue Defines */ +/* Interrupt Routines Defines */ #define SERIAL_IIR_RLS 0x06 #define SERIAL_IIR_RDA 0x04 #define SERIAL_IIR_CTI 0x0c @@ -438,7 +438,7 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, * not called the release function yet because someone has a serial port open. * The shared release_lock prevents the first, and the mutex and disconnected * flag maintained by usbserial covers the second. We also use the msg_pending - * flag to ensure that all synchronous usb messgage calls have completed before + * flag to ensure that all synchronous usb message calls have completed before * our release function can return. */ static int parport_prologue(struct parport *pp) @@ -469,7 +469,7 @@ static int parport_prologue(struct parport *pp) } /* - * This is the the common bottom part of all parallel port functions that send + * This is the common bottom part of all parallel port functions that send * synchronous messages to the device. */ static inline void parport_epilogue(struct parport *pp) diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 90c77b2..e403bda 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -139,7 +139,7 @@ static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port) /* Clear RTS line */ send_control_msg(port, CONTROL_RTS, 0); - /* clear the halt status of the enpoint */ + /* clear the halt status of the endpoint */ usb_clear_halt(port->serial->dev, port->read_urb->pipe); res = usb_serial_generic_open(tty, port); @@ -214,7 +214,7 @@ static int opticon_write(struct tty_struct *tty, struct usb_serial_port *port, usb_serial_debug_data(&port->dev, __func__, count, buffer); - /* The conncected devices do not have a bulk write endpoint, + /* The connected devices do not have a bulk write endpoint, * to transmit data to de barcode device the control endpoint is used */ dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_NOIO); if (!dr) { diff --git a/drivers/usb/serial/visor.h b/drivers/usb/serial/visor.h index 88db4d0..4c456dd 100644 --- a/drivers/usb/serial/visor.h +++ b/drivers/usb/serial/visor.h @@ -136,7 +136,7 @@ struct visor_connection_info { * connections.end_point_info is non-zero. If value is 0, then * connections.port contains the endpoint number, which is the same for in * and out. - * @port_function_id: contains the creator id of the applicaton that opened + * @port_function_id: contains the creator id of the application that opened * this connection. * @port: contains the in/out endpoint number. Is 0 if in and out endpoint * numbers are different. diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c index eae2c87..288d265 100644 --- a/drivers/usb/serial/zte_ev.c +++ b/drivers/usb/serial/zte_ev.c @@ -53,7 +53,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); - /* send 2st cmd and recieve data */ + /* send 2st cmd and receive data */ /* * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 25.1.0(5) * 16.0 DI 00 96 00 00 00 00 08 @@ -65,7 +65,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 3 cmd */ + /* send 3rd cmd */ /* * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 30.1.0 * 16.0 DO 80 25 00 00 00 00 08 .%..... 30.2.0 @@ -84,7 +84,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 4 cmd */ + /* send 4th cmd */ /* * 16.0 CTL 21 22 03 00 00 00 00 00 */ @@ -95,7 +95,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); - /* send 5 cmd */ + /* send 5th cmd */ /* * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 33.1.0 * 16.0 DI 80 25 00 00 00 00 08 @@ -107,7 +107,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 6 cmd */ + /* send 6th cmd */ /* * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 34.1.0 * 16.0 DO 80 25 00 00 00 00 08 @@ -195,7 +195,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 4 cmd */ + /* send 4th cmd */ /* * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 30.1.0 * 16.0 DO 00 c2 01 00 00 00 08 .%..... 30.2.0 @@ -214,7 +214,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 5 cmd */ + /* send 5th cmd */ /* * 16.0 CTL 21 22 03 00 00 00 00 00 */ @@ -225,7 +225,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); - /* send 6 cmd */ + /* send 6th cmd */ /* * 16.0 CTL a1 21 00 00 00 00 07 00 CLASS 33.1.0 * 16.0 DI 00 c2 01 00 00 00 08 @@ -237,7 +237,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 7 cmd */ + /* send 7th cmd */ /* * 16.0 CTL 21 20 00 00 00 00 07 00 CLASS 354.1.0 * 16.0 DO 00 c2 01 00 00 00 08 ....... 354.2.0 @@ -256,7 +256,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); - /* send 8 cmd */ + /* send 8th cmd */ /* * 16.0 CTL 21 22 03 00 00 00 00 00 */ -- cgit v0.10.2 From 7d5c1b9c7cb5ec8e52b1adc65c484a923a8ea6c3 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Thu, 2 Jan 2014 20:57:56 +0530 Subject: USB: serial: add support for iBall 3.5G connect usb modem MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add support for iBall 3.5G connect usb modem. $lsusb Bus 002 Device 006: ID 1c9e:9605 OMEGA TECHNOLOGY $usb-devices T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1c9e ProdID=9605 Rev=00.00 S: Manufacturer=USB Modem S: Product=USB Modem S: SerialNumber=1234567890ABCDEF C: #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage Signed-off-by: Rahul Bedarkar Suggested-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index c44400c..5c86f57 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -320,6 +320,9 @@ static void option_instat_callback(struct urb *urb); * It seems to contain a Qualcomm QSC6240/6290 chipset */ #define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603 +/* iBall 3.5G connect wireless modem */ +#define IBALL_3_5G_CONNECT 0x9605 + /* Zoom */ #define ZOOM_PRODUCT_4597 0x9607 @@ -1500,6 +1503,7 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&four_g_w14_blacklist }, { USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) }, + { USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) }, { USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) }, /* Pirelli */ { USB_DEVICE_INTERFACE_CLASS(PIRELLI_VENDOR_ID, PIRELLI_PRODUCT_C100_1, 0xff) }, -- cgit v0.10.2 From 0e16114f2db4838251fb64f3b550996ad3585890 Mon Sep 17 00:00:00 2001 From: Mikhail Zolotaryov Date: Sat, 28 Dec 2013 01:56:35 +0200 Subject: USB: Nokia 502 is an unusual device The USB storage operation of Nokia Asha 502 Dual SIM smartphone running Asha Platform 1.1.1 is unreliable in respect of data consistency (i.e. transfered files are corrupted). A similar issue is described here: http://discussions.nokia.com/t5/Asha-and-other-Nokia-Series-30/Nokia-301-USB-transfers-and-corrupted-files/td-p/1974170 The workaround is (MAX_SECTORS_64): rmmod usb_storage && modprobe usb_storage quirks=0421:06aa:m The patch adds the tested device to the unusual list permanently. Signed-off-by: Mikhail Zolotaryov Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index de32cfa..ad06255 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -234,6 +234,13 @@ UNUSUAL_DEV( 0x0421, 0x0495, 0x0370, 0x0370, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_MAX_SECTORS_64 ), +/* Patch submitted by Mikhail Zolotaryov */ +UNUSUAL_DEV( 0x0421, 0x06aa, 0x1110, 0x1110, + "Nokia", + "502", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_MAX_SECTORS_64 ), + #ifdef NO_SDDR09 UNUSUAL_DEV( 0x0436, 0x0005, 0x0100, 0x0100, "Microtech", -- cgit v0.10.2 From b693468155f5650dcaf01089ecf2b56ab66f9271 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:20 +0100 Subject: USB: pl2303: make type data const Declare constant device-type data as const. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 253cc9c..9951dfd 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -141,7 +141,7 @@ struct pl2303_type_data { }; struct pl2303_serial_private { - struct pl2303_type_data *type; + const struct pl2303_type_data *type; unsigned long quirks; }; @@ -153,7 +153,7 @@ struct pl2303_private { u8 line_settings[7]; }; -static struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = { +static const struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = { [TYPE_01] = { .max_baud_rate = 1228800, .quirks = PL2303_QUIRK_LEGACY, -- cgit v0.10.2 From 6020c3bec359873c1e4081785f220db99694c4e4 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:21 +0100 Subject: USB: pl2303: clean up line-status handling Clean up line-status handling somewhat. Get tty-reference only when actually needed. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 9951dfd..11de1f1 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -808,7 +808,8 @@ static void pl2303_update_line_status(struct usb_serial_port *port, struct tty_struct *tty; unsigned long flags; unsigned int status_idx = UART_STATE_INDEX; - u8 prev_line_status; + u8 status; + u8 delta; if (spriv->quirks & PL2303_QUIRK_UART_STATE_IDX0) status_idx = 0; @@ -816,24 +817,27 @@ static void pl2303_update_line_status(struct usb_serial_port *port, if (actual_length < status_idx + 1) return; + status = data[status_idx]; + /* Save off the uart status for others to look at */ spin_lock_irqsave(&priv->lock, flags); - prev_line_status = priv->line_status; - priv->line_status = data[status_idx]; + delta = priv->line_status ^ status; + priv->line_status = status; spin_unlock_irqrestore(&priv->lock, flags); - if (priv->line_status & UART_BREAK_ERROR) + if (status & UART_BREAK_ERROR) usb_serial_handle_break(port); wake_up_interruptible(&port->port.delta_msr_wait); - tty = tty_port_tty_get(&port->port); - if (!tty) - return; - if ((priv->line_status ^ prev_line_status) & UART_DCD) - usb_serial_handle_dcd_change(port, tty, - priv->line_status & UART_DCD); - tty_kref_put(tty); + if (delta & UART_DCD) { + tty = tty_port_tty_get(&port->port); + if (tty) { + usb_serial_handle_dcd_change(port, tty, + status & UART_DCD); + tty_kref_put(tty); + } + } } static void pl2303_read_int_callback(struct urb *urb) -- cgit v0.10.2 From dbfd2866ac36bab52a4f37384e935eb5df76ad60 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:22 +0100 Subject: USB: pl2303: only wake up MSR queue on changes Only wake up MSR wait queue on actual modem-status changes. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 11de1f1..64f093f 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -118,6 +118,7 @@ MODULE_DEVICE_TABLE(usb, id_table); #define VENDOR_READ_REQUEST 0x01 #define UART_STATE_INDEX 8 +#define UART_STATE_MSR_MASK 0x8b #define UART_STATE_TRANSIENT_MASK 0x74 #define UART_DCD 0x01 #define UART_DSR 0x02 @@ -828,15 +829,17 @@ static void pl2303_update_line_status(struct usb_serial_port *port, if (status & UART_BREAK_ERROR) usb_serial_handle_break(port); - wake_up_interruptible(&port->port.delta_msr_wait); - - if (delta & UART_DCD) { - tty = tty_port_tty_get(&port->port); - if (tty) { - usb_serial_handle_dcd_change(port, tty, + if (delta & UART_STATE_MSR_MASK) { + if (delta & UART_DCD) { + tty = tty_port_tty_get(&port->port); + if (tty) { + usb_serial_handle_dcd_change(port, tty, status & UART_DCD); - tty_kref_put(tty); + tty_kref_put(tty); + } } + + wake_up_interruptible(&port->port.delta_msr_wait); } } -- cgit v0.10.2 From a4bcb2945926901bbacf978eb0c0fdda5b327dc7 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:23 +0100 Subject: USB: pl2303: switch to generic TIOCMIWAIT implementation Switch to the generic TIOCMIWAIT implementation which does not suffer from the races involved when using the deprecated sleep_on functions. Acked-by: Arnd Bergmann Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 64f093f..abee318 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -712,46 +712,6 @@ static int pl2303_carrier_raised(struct usb_serial_port *port) return 0; } -static int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - struct pl2303_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int prevstatus; - unsigned int status; - unsigned int changed; - - spin_lock_irqsave(&priv->lock, flags); - prevstatus = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - while (1) { - interruptible_sleep_on(&port->port.delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - - if (port->serial->disconnected) - return -EIO; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - changed = prevstatus ^ status; - - if (((arg & TIOCM_RNG) && (changed & UART_RING)) || - ((arg & TIOCM_DSR) && (changed & UART_DSR)) || - ((arg & TIOCM_CD) && (changed & UART_DCD)) || - ((arg & TIOCM_CTS) && (changed & UART_CTS))) { - return 0; - } - prevstatus = status; - } - /* NOTREACHED */ - return 0; -} - static int pl2303_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { @@ -830,7 +790,14 @@ static void pl2303_update_line_status(struct usb_serial_port *port, usb_serial_handle_break(port); if (delta & UART_STATE_MSR_MASK) { + if (delta & UART_CTS) + port->icount.cts++; + if (delta & UART_DSR) + port->icount.dsr++; + if (delta & UART_RING) + port->icount.rng++; if (delta & UART_DCD) { + port->icount.dcd++; tty = tty_port_tty_get(&port->port); if (tty) { usb_serial_handle_dcd_change(port, tty, @@ -950,7 +917,7 @@ static struct usb_serial_driver pl2303_device = { .set_termios = pl2303_set_termios, .tiocmget = pl2303_tiocmget, .tiocmset = pl2303_tiocmset, - .tiocmiwait = pl2303_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .process_read_urb = pl2303_process_read_urb, .read_int_callback = pl2303_read_int_callback, .probe = pl2303_probe, -- cgit v0.10.2 From 440ebadeae9298d7de3d4d105342691841ec88d0 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:24 +0100 Subject: USB: cypress_m8: fix ring-indicator detection and reporting Fix ring-indicator (RI) status-bit definition, which was defined as CTS, effectively preventing RI-changes from being detected while reporting false RI status. This bug predates git. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h index b461311..ce13e61 100644 --- a/drivers/usb/serial/cypress_m8.h +++ b/drivers/usb/serial/cypress_m8.h @@ -63,7 +63,7 @@ #define UART_DSR 0x20 /* data set ready - flow control - device to host */ #define CONTROL_RTS 0x10 /* request to send - flow control - host to device */ #define UART_CTS 0x10 /* clear to send - flow control - device to host */ -#define UART_RI 0x10 /* ring indicator - modem - device to host */ +#define UART_RI 0x80 /* ring indicator - modem - device to host */ #define UART_CD 0x40 /* carrier detect - modem - device to host */ #define CYP_ERROR 0x08 /* received from input report - device to host */ /* Note - the below has nothing to do with the "feature report" reset */ -- cgit v0.10.2 From 2534be34c9f728759e7e7ba69bab9d3a5cbb5984 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:25 +0100 Subject: USB: cypress_m8: clean up protocol definitions Clean up protocol definitions. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h index ce13e61..68bfd51 100644 --- a/drivers/usb/serial/cypress_m8.h +++ b/drivers/usb/serial/cypress_m8.h @@ -55,19 +55,22 @@ #define CT_GENERIC 0x0F /* End of chiptype definitions */ -/* RS-232 serial data communication protocol definitions */ -/* these are sent / read at byte 0 of the input/output hid reports */ -/* You can find these values defined in the CY4601 USB to Serial design notes */ - -#define CONTROL_DTR 0x20 /* data terminal ready - flow control - host to device */ -#define UART_DSR 0x20 /* data set ready - flow control - device to host */ -#define CONTROL_RTS 0x10 /* request to send - flow control - host to device */ -#define UART_CTS 0x10 /* clear to send - flow control - device to host */ -#define UART_RI 0x80 /* ring indicator - modem - device to host */ -#define UART_CD 0x40 /* carrier detect - modem - device to host */ -#define CYP_ERROR 0x08 /* received from input report - device to host */ -/* Note - the below has nothing to do with the "feature report" reset */ -#define CONTROL_RESET 0x08 /* sent with output report - host to device */ +/* + * RS-232 serial data communication protocol definitions. + * + * These are sent / read at byte 0 of the input/output hid reports. + * You can find these values defined in the CY4601 USB to Serial design notes. + */ + +#define CONTROL_DTR 0x20 /* data terminal ready */ +#define CONTROL_RTS 0x10 /* request to send */ +#define CONTROL_RESET 0x08 /* sent with output report */ + +#define UART_RI 0x80 /* ring indicator */ +#define UART_CD 0x40 /* carrier detect */ +#define UART_DSR 0x20 /* data set ready */ +#define UART_CTS 0x10 /* clear to send */ +#define CYP_ERROR 0x08 /* received from input report */ /* End of RS-232 protocol definitions */ -- cgit v0.10.2 From 7603381e3e7ffebe8c0b46c416fe0f88e13b4d34 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:26 +0100 Subject: USB: cypress_m8: only wake up MSR queue on changes Only wake up MSR wait queue on actual modem-status changes. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 558605d..07e0033 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -1187,7 +1187,10 @@ static void cypress_read_int_callback(struct urb *urb) if (priv->current_status != priv->prev_status) { priv->diff_status |= priv->current_status ^ priv->prev_status; - wake_up_interruptible(&port->port.delta_msr_wait); + + if (priv->diff_status & UART_MSR_MASK) + wake_up_interruptible(&port->port.delta_msr_wait); + priv->prev_status = priv->current_status; } spin_unlock_irqrestore(&priv->lock, flags); diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h index 68bfd51..119d2e1 100644 --- a/drivers/usb/serial/cypress_m8.h +++ b/drivers/usb/serial/cypress_m8.h @@ -66,6 +66,7 @@ #define CONTROL_RTS 0x10 /* request to send */ #define CONTROL_RESET 0x08 /* sent with output report */ +#define UART_MSR_MASK 0xf0 #define UART_RI 0x80 /* ring indicator */ #define UART_CD 0x40 /* carrier detect */ #define UART_DSR 0x20 /* data set ready */ -- cgit v0.10.2 From ab62a585a02af4dae2d615d4476e1bf493ff1be8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:27 +0100 Subject: USB: cypress_m8: switch to generic TIOCMIWAIT implementation Switch to the generic TIOCMIWAIT implementation which does not suffer from the races involved when using the deprecated sleep_on functions. Acked-by: Arnd Bergmann Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 07e0033..763d1c5 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -113,7 +113,7 @@ struct cypress_private { int baud_rate; /* stores current baud rate in integer form */ int isthrottled; /* if throttled, discard reads */ - char prev_status, diff_status; /* used for TIOCMIWAIT */ + char prev_status; /* used for TIOCMIWAIT */ /* we pass a pointer to this as the argument sent to cypress_set_termios old_termios */ struct ktermios tmp_termios; /* stores the old termios settings */ @@ -136,7 +136,6 @@ static void cypress_set_termios(struct tty_struct *tty, static int cypress_tiocmget(struct tty_struct *tty); static int cypress_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static int cypress_tiocmiwait(struct tty_struct *tty, unsigned long arg); static int cypress_chars_in_buffer(struct tty_struct *tty); static void cypress_throttle(struct tty_struct *tty); static void cypress_unthrottle(struct tty_struct *tty); @@ -162,7 +161,7 @@ static struct usb_serial_driver cypress_earthmate_device = { .set_termios = cypress_set_termios, .tiocmget = cypress_tiocmget, .tiocmset = cypress_tiocmset, - .tiocmiwait = cypress_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .chars_in_buffer = cypress_chars_in_buffer, .throttle = cypress_throttle, .unthrottle = cypress_unthrottle, @@ -188,7 +187,7 @@ static struct usb_serial_driver cypress_hidcom_device = { .set_termios = cypress_set_termios, .tiocmget = cypress_tiocmget, .tiocmset = cypress_tiocmset, - .tiocmiwait = cypress_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .chars_in_buffer = cypress_chars_in_buffer, .throttle = cypress_throttle, .unthrottle = cypress_unthrottle, @@ -214,7 +213,7 @@ static struct usb_serial_driver cypress_ca42v2_device = { .set_termios = cypress_set_termios, .tiocmget = cypress_tiocmget, .tiocmset = cypress_tiocmset, - .tiocmiwait = cypress_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .chars_in_buffer = cypress_chars_in_buffer, .throttle = cypress_throttle, .unthrottle = cypress_unthrottle, @@ -864,45 +863,6 @@ static int cypress_tiocmset(struct tty_struct *tty, return cypress_write(tty, port, NULL, 0); } - -static int cypress_tiocmiwait(struct tty_struct *tty, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - struct cypress_private *priv = usb_get_serial_port_data(port); - char diff; - - for (;;) { - interruptible_sleep_on(&port->port.delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - - if (port->serial->disconnected) - return -EIO; - - diff = priv->diff_status; - if (diff == 0) - return -EIO; /* no change => error */ - - /* consume all events */ - priv->diff_status = 0; - - /* return 0 if caller wanted to know about - these bits */ - if (((arg & TIOCM_RNG) && (diff & UART_RI)) || - ((arg & TIOCM_DSR) && (diff & UART_DSR)) || - ((arg & TIOCM_CD) && (diff & UART_CD)) || - ((arg & TIOCM_CTS) && (diff & UART_CTS))) - return 0; - /* otherwise caller can't care less about what - * happened, and so we continue to wait for - * more events. - */ - } - - return 0; -} - static void cypress_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { @@ -1185,11 +1145,20 @@ static void cypress_read_int_callback(struct urb *urb) spin_lock_irqsave(&priv->lock, flags); /* check to see if status has changed */ if (priv->current_status != priv->prev_status) { - priv->diff_status |= priv->current_status ^ - priv->prev_status; + u8 delta = priv->current_status ^ priv->prev_status; + + if (delta & UART_MSR_MASK) { + if (delta & UART_CTS) + port->icount.cts++; + if (delta & UART_DSR) + port->icount.dsr++; + if (delta & UART_RI) + port->icount.rng++; + if (delta & UART_CD) + port->icount.dcd++; - if (priv->diff_status & UART_MSR_MASK) wake_up_interruptible(&port->port.delta_msr_wait); + } priv->prev_status = priv->current_status; } -- cgit v0.10.2 From ac035628a95f20ff4c53b80c4b80e12287231e1a Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:28 +0100 Subject: USB: ch341: refactor line-status handling Refactor line-status handling. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 8908760..f647dbd 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -440,6 +440,33 @@ static int ch341_tiocmset(struct tty_struct *tty, return ch341_set_handshake(port->serial->dev, control); } +static void ch341_update_line_status(struct usb_serial_port *port, + unsigned char *data, size_t len) +{ + struct ch341_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + u8 prev_line_status = priv->line_status; + + if (len < 4) + return; + + spin_lock_irqsave(&priv->lock, flags); + priv->line_status = (~(data[2])) & CH341_BITS_MODEM_STAT; + if ((data[1] & CH341_MULT_STAT)) + priv->multi_status_change = 1; + spin_unlock_irqrestore(&priv->lock, flags); + + if ((priv->line_status ^ prev_line_status) & CH341_BIT_DCD) { + struct tty_struct *tty = tty_port_tty_get(&port->port); + if (tty) + usb_serial_handle_dcd_change(port, tty, + priv->line_status & CH341_BIT_DCD); + tty_kref_put(tty); + } + + wake_up_interruptible(&port->port.delta_msr_wait); +} + static void ch341_read_int_callback(struct urb *urb) { struct usb_serial_port *port = (struct usb_serial_port *) urb->context; @@ -466,29 +493,7 @@ static void ch341_read_int_callback(struct urb *urb) usb_serial_debug_data(&port->dev, __func__, urb->actual_length, urb->transfer_buffer); - - if (actual_length >= 4) { - struct ch341_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - u8 prev_line_status = priv->line_status; - - spin_lock_irqsave(&priv->lock, flags); - priv->line_status = (~(data[2])) & CH341_BITS_MODEM_STAT; - if ((data[1] & CH341_MULT_STAT)) - priv->multi_status_change = 1; - spin_unlock_irqrestore(&priv->lock, flags); - - if ((priv->line_status ^ prev_line_status) & CH341_BIT_DCD) { - struct tty_struct *tty = tty_port_tty_get(&port->port); - if (tty) - usb_serial_handle_dcd_change(port, tty, - priv->line_status & CH341_BIT_DCD); - tty_kref_put(tty); - } - - wake_up_interruptible(&port->port.delta_msr_wait); - } - + ch341_update_line_status(port, data, actual_length); exit: status = usb_submit_urb(urb, GFP_ATOMIC); if (status) -- cgit v0.10.2 From b770081f88b75212d61a63a84274e491eb54b25a Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:29 +0100 Subject: USB: ch341: clean up line-status handling Clean up line-status handling. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index f647dbd..9dd94a7 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -444,24 +444,30 @@ static void ch341_update_line_status(struct usb_serial_port *port, unsigned char *data, size_t len) { struct ch341_private *priv = usb_get_serial_port_data(port); + struct tty_struct *tty; unsigned long flags; - u8 prev_line_status = priv->line_status; + u8 status; + u8 delta; if (len < 4) return; + status = ~data[2] & CH341_BITS_MODEM_STAT; + spin_lock_irqsave(&priv->lock, flags); - priv->line_status = (~(data[2])) & CH341_BITS_MODEM_STAT; - if ((data[1] & CH341_MULT_STAT)) + delta = status ^ priv->line_status; + priv->line_status = status; + if (data[1] & CH341_MULT_STAT) priv->multi_status_change = 1; spin_unlock_irqrestore(&priv->lock, flags); - if ((priv->line_status ^ prev_line_status) & CH341_BIT_DCD) { - struct tty_struct *tty = tty_port_tty_get(&port->port); - if (tty) + if (delta & CH341_BIT_DCD) { + tty = tty_port_tty_get(&port->port); + if (tty) { usb_serial_handle_dcd_change(port, tty, - priv->line_status & CH341_BIT_DCD); - tty_kref_put(tty); + status & CH341_BIT_DCD); + tty_kref_put(tty); + } } wake_up_interruptible(&port->port.delta_msr_wait); -- cgit v0.10.2 From fd74b0b144d3e392b5269207ae4abba03f0adf59 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:30 +0100 Subject: USB: ch341: fix ignored TIOCMIWAIT mask Make sure the TIOCMIWAIT mask is always honoured. The CH341 interrupt status has a multiple-status changed flag which indicates that multiple status changes has occurred since last interrupt event. Unfortunately, if the final status is the same, there appears to be no way to determine which signal(s) has changed (an even number of times). This means that the multiple-status flag should not be used in TIOCMIWAIT as it leads to the signal mask argument being ignored (e.g. TIOCMIWAIT could return if DSR changes twice, even though the user only cares about carrier changes). Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 9dd94a7..025b785 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -83,7 +83,6 @@ struct ch341_private { unsigned baud_rate; /* set baud rate */ u8 line_control; /* set line control value RTS/DTR */ u8 line_status; /* active status of modem control inputs */ - u8 multi_status_change; /* status changed multiple since last call */ }; static int ch341_control_out(struct usb_device *dev, u8 request, @@ -174,7 +173,6 @@ static int ch341_get_status(struct usb_device *dev, struct ch341_private *priv) r = 0; spin_lock_irqsave(&priv->lock, flags); priv->line_status = (~(*buffer)) & CH341_BITS_MODEM_STAT; - priv->multi_status_change = 0; spin_unlock_irqrestore(&priv->lock, flags); } else r = -EPROTO; @@ -457,10 +455,11 @@ static void ch341_update_line_status(struct usb_serial_port *port, spin_lock_irqsave(&priv->lock, flags); delta = status ^ priv->line_status; priv->line_status = status; - if (data[1] & CH341_MULT_STAT) - priv->multi_status_change = 1; spin_unlock_irqrestore(&priv->lock, flags); + if (data[1] & CH341_MULT_STAT) + dev_dbg(&port->dev, "%s - multiple status change\n", __func__); + if (delta & CH341_BIT_DCD) { tty = tty_port_tty_get(&port->port); if (tty) { @@ -516,14 +515,12 @@ static int ch341_tiocmiwait(struct tty_struct *tty, unsigned long arg) u8 prevstatus; u8 status; u8 changed; - u8 multi_change = 0; spin_lock_irqsave(&priv->lock, flags); prevstatus = priv->line_status; - priv->multi_status_change = 0; spin_unlock_irqrestore(&priv->lock, flags); - while (!multi_change) { + for (;;) { interruptible_sleep_on(&port->port.delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) @@ -534,7 +531,6 @@ static int ch341_tiocmiwait(struct tty_struct *tty, unsigned long arg) spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; - multi_change = priv->multi_status_change; spin_unlock_irqrestore(&priv->lock, flags); changed = prevstatus ^ status; -- cgit v0.10.2 From d984fe91a85e49841449b120cda5a50fed1fb126 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:31 +0100 Subject: USB: ch341: only wake up MSR queue on changes Only wake up MSR wait queue on actual modem-status changes. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 025b785..acc8865 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -460,6 +460,9 @@ static void ch341_update_line_status(struct usb_serial_port *port, if (data[1] & CH341_MULT_STAT) dev_dbg(&port->dev, "%s - multiple status change\n", __func__); + if (!delta) + return; + if (delta & CH341_BIT_DCD) { tty = tty_port_tty_get(&port->port); if (tty) { -- cgit v0.10.2 From 5e409a265d9327689eef15a8fff1ffcb7f8fc2e1 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:32 +0100 Subject: USB: ch341: switch to generic TIOCMIWAIT implementation Switch to the generic TIOCMIWAIT implementation which does not suffer from the races involved when using the deprecated sleep_on functions. Acked-by: Arnd Bergmann Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index acc8865..ac21618 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -463,7 +463,14 @@ static void ch341_update_line_status(struct usb_serial_port *port, if (!delta) return; + if (delta & CH341_BIT_CTS) + port->icount.cts++; + if (delta & CH341_BIT_DSR) + port->icount.dsr++; + if (delta & CH341_BIT_RI) + port->icount.rng++; if (delta & CH341_BIT_DCD) { + port->icount.dcd++; tty = tty_port_tty_get(&port->port); if (tty) { usb_serial_handle_dcd_change(port, tty, @@ -510,46 +517,6 @@ exit: __func__, status); } -static int ch341_tiocmiwait(struct tty_struct *tty, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - struct ch341_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - u8 prevstatus; - u8 status; - u8 changed; - - spin_lock_irqsave(&priv->lock, flags); - prevstatus = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - for (;;) { - interruptible_sleep_on(&port->port.delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - - if (port->serial->disconnected) - return -EIO; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - changed = prevstatus ^ status; - - if (((arg & TIOCM_RNG) && (changed & CH341_BIT_RI)) || - ((arg & TIOCM_DSR) && (changed & CH341_BIT_DSR)) || - ((arg & TIOCM_CD) && (changed & CH341_BIT_DCD)) || - ((arg & TIOCM_CTS) && (changed & CH341_BIT_CTS))) { - return 0; - } - prevstatus = status; - } - - return 0; -} - static int ch341_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; @@ -603,7 +570,7 @@ static struct usb_serial_driver ch341_device = { .break_ctl = ch341_break_ctl, .tiocmget = ch341_tiocmget, .tiocmset = ch341_tiocmset, - .tiocmiwait = ch341_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .read_int_callback = ch341_read_int_callback, .port_probe = ch341_port_probe, .port_remove = ch341_port_remove, -- cgit v0.10.2 From 271ec2d2d7bd4ab528a7a94701503df06ca8fd52 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:33 +0100 Subject: USB: ch341: clean up interrupt handler Clean up interrupt completion handler somewhat. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index ac21618..65a81c6 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -484,9 +484,9 @@ static void ch341_update_line_status(struct usb_serial_port *port, static void ch341_read_int_callback(struct urb *urb) { - struct usb_serial_port *port = (struct usb_serial_port *) urb->context; + struct usb_serial_port *port = urb->context; unsigned char *data = urb->transfer_buffer; - unsigned int actual_length = urb->actual_length; + unsigned int len = urb->actual_length; int status; switch (urb->status) { @@ -497,24 +497,23 @@ static void ch341_read_int_callback(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", + dev_dbg(&urb->dev->dev, "%s - urb shutting down: %d\n", __func__, urb->status); return; default: - dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", + dev_dbg(&urb->dev->dev, "%s - nonzero urb status: %d\n", __func__, urb->status); goto exit; } - usb_serial_debug_data(&port->dev, __func__, - urb->actual_length, urb->transfer_buffer); - ch341_update_line_status(port, data, actual_length); + usb_serial_debug_data(&port->dev, __func__, len, data); + ch341_update_line_status(port, data, len); exit: status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) - dev_err(&urb->dev->dev, - "%s - usb_submit_urb failed with result %d\n", + if (status) { + dev_err(&urb->dev->dev, "%s - usb_submit_urb failed: %d\n", __func__, status); + } } static int ch341_tiocmget(struct tty_struct *tty) -- cgit v0.10.2 From 1acc36e9c8dcd44f0978c9270e24daa83f343f85 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:34 +0100 Subject: USB: oti6858: only wake up MSR queue on changes Only wake up MSR wait queue on actual modem-status changes. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 1dea599..9ea15e0 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -103,6 +103,7 @@ struct oti6858_control_pkt { #define TX_BUFFER_EMPTIED 0x09 u8 pin_state; #define PIN_MASK 0x3f +#define PIN_MSR_MASK 0x1b #define PIN_RTS 0x20 /* output pin */ #define PIN_CTS 0x10 /* input pin, active low */ #define PIN_DSR 0x08 /* input pin, active low */ @@ -739,8 +740,11 @@ static void oti6858_read_int_callback(struct urb *urb) } if (!priv->transient) { - if (xs->pin_state != priv->status.pin_state) + u8 delta = xs->pin_state ^ priv->status.pin_state; + + if (delta & PIN_MSR_MASK) wake_up_interruptible(&port->port.delta_msr_wait); + memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE); } -- cgit v0.10.2 From bd6383c81d5f33e01688a87c50a8d3a878aa43d5 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 2 Jan 2014 22:49:35 +0100 Subject: USB: oti6858: switch to generic TIOCMIWAIT implementation Switch to the generic TIOCMIWAIT implementation. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 9ea15e0..95a79b4 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -135,7 +135,6 @@ static int oti6858_chars_in_buffer(struct tty_struct *tty); static int oti6858_tiocmget(struct tty_struct *tty); static int oti6858_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static int oti6858_tiocmiwait(struct tty_struct *tty, unsigned long arg); static int oti6858_port_probe(struct usb_serial_port *port); static int oti6858_port_remove(struct usb_serial_port *port); @@ -154,7 +153,7 @@ static struct usb_serial_driver oti6858_device = { .init_termios = oti6858_init_termios, .tiocmget = oti6858_tiocmget, .tiocmset = oti6858_tiocmset, - .tiocmiwait = oti6858_tiocmiwait, + .tiocmiwait = usb_serial_generic_tiocmiwait, .read_bulk_callback = oti6858_read_bulk_callback, .read_int_callback = oti6858_read_int_callback, .write_bulk_callback = oti6858_write_bulk_callback, @@ -643,46 +642,6 @@ static int oti6858_tiocmget(struct tty_struct *tty) return result; } -static int oti6858_tiocmiwait(struct tty_struct *tty, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - struct oti6858_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int prev, status; - unsigned int changed; - - spin_lock_irqsave(&priv->lock, flags); - prev = priv->status.pin_state; - spin_unlock_irqrestore(&priv->lock, flags); - - while (1) { - wait_event_interruptible(port->port.delta_msr_wait, - port->serial->disconnected || - priv->status.pin_state != prev); - if (signal_pending(current)) - return -ERESTARTSYS; - - if (port->serial->disconnected) - return -EIO; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->status.pin_state & PIN_MASK; - spin_unlock_irqrestore(&priv->lock, flags); - - changed = prev ^ status; - /* FIXME: check if this is correct (active high/low) */ - if (((arg & TIOCM_RNG) && (changed & PIN_RI)) || - ((arg & TIOCM_DSR) && (changed & PIN_DSR)) || - ((arg & TIOCM_CD) && (changed & PIN_DCD)) || - ((arg & TIOCM_CTS) && (changed & PIN_CTS))) - return 0; - prev = status; - } - - /* NOTREACHED */ - return 0; -} - static void oti6858_read_int_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; @@ -742,8 +701,18 @@ static void oti6858_read_int_callback(struct urb *urb) if (!priv->transient) { u8 delta = xs->pin_state ^ priv->status.pin_state; - if (delta & PIN_MSR_MASK) + if (delta & PIN_MSR_MASK) { + if (delta & PIN_CTS) + port->icount.cts++; + if (delta & PIN_DSR) + port->icount.dsr++; + if (delta & PIN_RI) + port->icount.rng++; + if (delta & PIN_DCD) + port->icount.dcd++; + wake_up_interruptible(&port->port.delta_msr_wait); + } memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE); } -- cgit v0.10.2 From 1f53b485294509281cb918d6372ab24e82a1959e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 7 Jan 2014 12:54:58 +0100 Subject: USB: fix: ohci-at91 mismerge build error After commit 99f14bd4d1 "Merge 3.13-rc5 into usb-next" (in linux-next as of today), I'm getting this error building any at91 kernel: drivers/usb/host/ohci-at91.c: In function 'usb_hcd_at91_probe': drivers/usb/host/ohci-at91.c:190:4: error: label 'err' used but not defined goto err; ^ drivers/usb/host/ohci-at91.c: At top level: drivers/usb/host/ohci-at91.c:206:2: warning: data definition has no type or storage class [enabled by default] at91_stop_hc(pdev); ^ ... The problem is obviously a mismerge between two unrelated changes that resulted in missing opening braces. Signed-off-by: Arnd Bergmann Acked-by: Boris BREZILLON Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 2d0ee5e..091ae49 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -197,7 +197,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, at91_start_hc(pdev); retval = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (retval == 0) + if (retval == 0) { device_wakeup_enable(hcd->self.controller); return retval; } -- cgit v0.10.2 From 543d7784b07ffd16cc82a9cb4e1e0323fd0040f1 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 7 Jan 2014 10:43:02 -0500 Subject: USB: fix race between hub_disconnect and recursively_mark_NOTATTACHED There is a race in the hub driver between hub_disconnect() and recursively_mark_NOTATTACHED(). This race can be triggered if the driver is unbound from a device at the same time as the bus's root hub is removed. When the race occurs, it can cause an oops: BUG: unable to handle kernel NULL pointer dereference at 0000015c IP: [] recursively_mark_NOTATTACHED+0x20/0x60 Call Trace: [] recursively_mark_NOTATTACHED+0x34/0x60 [] recursively_mark_NOTATTACHED+0x34/0x60 [] recursively_mark_NOTATTACHED+0x34/0x60 [] recursively_mark_NOTATTACHED+0x34/0x60 [] usb_set_device_state+0x92/0x120 [] usb_disconnect+0x2b/0x1a0 [] usb_remove_hcd+0xb0/0x160 [] ? _raw_spin_unlock_irqrestore+0x26/0x50 [] ehci_mid_remove+0x1c/0x30 [] ehci_mid_stop_host+0x16/0x30 [] penwell_otg_work+0xd28/0x3520 [] ? __schedule+0x39b/0x7f0 [] ? sub_preempt_count+0x3d/0x50 [] process_one_work+0x11d/0x3d0 [] ? mutex_unlock+0xd/0x10 [] ? manage_workers.isra.24+0x1b5/0x270 [] worker_thread+0xf9/0x320 [] ? _raw_spin_unlock_irqrestore+0x26/0x50 [] ? rescuer_thread+0x2b0/0x2b0 [] kthread+0x94/0xa0 [] ret_from_kernel_thread+0x1b/0x28 [] ? kthread_create_on_node+0xc0/0xc0 One problem is that recursively_mark_NOTATTACHED() uses the intfdata value and hub->hdev->maxchild while hub_disconnect() is clearing them. Another problem is that it uses hub->ports[i] while the port device is being released. To fix this race, we need to hold the device_state_lock while hub_disconnect() changes the values. (Note that usb_disconnect() and hub_port_connect_change() already acquire this lock at similar critical times during a USB device's life cycle.) We also need to remove the port devices after maxchild has been set to 0, instead of before. Signed-off-by: Alan Stern Reported-by: "Du, Changbin" Tested-by: "Du, Changbin" CC: Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 92e052d..9e49c6d 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1600,7 +1600,7 @@ static void hub_disconnect(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata(intf); struct usb_device *hdev = interface_to_usbdev(intf); - int i; + int port1; /* Take the hub off the event list and don't let it be added again */ spin_lock_irq(&hub_event_lock); @@ -1615,11 +1615,15 @@ static void hub_disconnect(struct usb_interface *intf) hub->error = 0; hub_quiesce(hub, HUB_DISCONNECT); - usb_set_intfdata (intf, NULL); + /* Avoid races with recursively_mark_NOTATTACHED() */ + spin_lock_irq(&device_state_lock); + port1 = hdev->maxchild; + hdev->maxchild = 0; + usb_set_intfdata(intf, NULL); + spin_unlock_irq(&device_state_lock); - for (i = 0; i < hdev->maxchild; i++) - usb_hub_remove_port_device(hub, i + 1); - hub->hdev->maxchild = 0; + for (; port1 > 0; --port1) + usb_hub_remove_port_device(hub, port1); if (hub->hdev->speed == USB_SPEED_HIGH) highspeed_hubs--; -- cgit v0.10.2 From 8f668fbbd571bbd5187a9a0eae150b768fc388ac Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Wed, 25 Dec 2013 16:01:30 +0400 Subject: USB: c67x00: add proper delays to HPI read/write According to CY7C67300 specification HPI read and write cycle duration Tcyc must be at least 6T long, where T is 1/48MHz, which is 125ns. Without this delay fast host processor cannot write to chip registers. Add proper ndelay to hpi_{read,write}_reg. Signed-off-by: Max Filippov Acked-by: Peter Korsgaard Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/c67x00/c67x00-ll-hpi.c b/drivers/usb/c67x00/c67x00-ll-hpi.c index 3a1ca4d..cd2c6ed 100644 --- a/drivers/usb/c67x00/c67x00-ll-hpi.c +++ b/drivers/usb/c67x00/c67x00-ll-hpi.c @@ -22,6 +22,7 @@ */ #include +#include #include #include #include @@ -73,13 +74,22 @@ struct c67x00_lcp_int_data { #define HPI_ADDR 2 #define HPI_STATUS 3 +/* + * According to CY7C67300 specification (tables 140 and 141) HPI read and + * write cycle duration Tcyc must be at least 6T long, where T is 1/48MHz, + * which is 125ns. + */ +#define HPI_T_CYC_NS 125 + static inline u16 hpi_read_reg(struct c67x00_device *dev, int reg) { + ndelay(HPI_T_CYC_NS); return __raw_readw(dev->hpi.base + reg * dev->hpi.regstep); } static inline void hpi_write_reg(struct c67x00_device *dev, int reg, u16 value) { + ndelay(HPI_T_CYC_NS); __raw_writew(value, dev->hpi.base + reg * dev->hpi.regstep); } -- cgit v0.10.2 From 252d74f6a875bcdee54cbcc82d7c02ee4fcece6b Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Wed, 25 Dec 2013 16:01:29 +0400 Subject: USB: c67x00: move URB private data allocation from under spinlock This fixes the following warning: BUG: sleeping function called from invalid context at mm/slub.c:940 in_atomic(): 1, irqs_disabled(): 1, pid: 17, name: khubd CPU: 0 PID: 17 Comm: khubd Not tainted 3.12.0-00004-g938dd60-dirty #1 __might_sleep+0xbe/0xc0 kmem_cache_alloc_trace+0x36/0x170 c67x00_urb_enqueue+0x5c/0x254 usb_hcd_submit_urb+0x66e/0x724 usb_submit_urb+0x2ac/0x308 usb_start_wait_urb+0x2c/0xb8 usb_control_msg+0x8c/0xa8 hub_port_init+0x191/0x718 hub_thread+0x804/0xe14 kthread+0x72/0x78 ret_from_kernel_thread+0x8/0xc Signed-off-by: Max Filippov Acked-by: Peter Korsgaard Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c index c379d20..7311ed6 100644 --- a/drivers/usb/c67x00/c67x00-sched.c +++ b/drivers/usb/c67x00/c67x00-sched.c @@ -362,6 +362,13 @@ int c67x00_urb_enqueue(struct usb_hcd *hcd, struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd); int port = get_root_port(urb->dev)-1; + /* Allocate and initialize urb private data */ + urbp = kzalloc(sizeof(*urbp), mem_flags); + if (!urbp) { + ret = -ENOMEM; + goto err_urbp; + } + spin_lock_irqsave(&c67x00->lock, flags); /* Make sure host controller is running */ @@ -374,13 +381,6 @@ int c67x00_urb_enqueue(struct usb_hcd *hcd, if (ret) goto err_not_linked; - /* Allocate and initialize urb private data */ - urbp = kzalloc(sizeof(*urbp), mem_flags); - if (!urbp) { - ret = -ENOMEM; - goto err_urbp; - } - INIT_LIST_HEAD(&urbp->hep_node); urbp->urb = urb; urbp->port = port; @@ -443,11 +443,11 @@ int c67x00_urb_enqueue(struct usb_hcd *hcd, return 0; err_epdata: - kfree(urbp); -err_urbp: usb_hcd_unlink_urb_from_ep(hcd, urb); err_not_linked: spin_unlock_irqrestore(&c67x00->lock, flags); + kfree(urbp); +err_urbp: return ret; } -- cgit v0.10.2 From d7e92f7f768477c6ab5ec6b12f854db3e716b2e5 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 19 Dec 2013 15:44:10 -0800 Subject: Watchdog: pcwd_usb: remove CONFIG_USB_DEBUG usage CONFIG_USB_DEBUG is going away, and all of the other USB drivers no longer rely on "debug" module parameters for debugging lines, so move the pcwd_usb driver to use the dynamic debug infrastructure to be more in line with the rest of the kernel. Signed-off-by: Greg Kroah-Hartman Cc: Wim Van Sebroeck Reviewed-by: Guenter Roeck diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index b731b5d..e562e04 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -44,23 +44,6 @@ #include /* For HID_REQ_SET_REPORT & HID_DT_REPORT */ #include /* For copy_to_user/put_user/... */ -#ifdef CONFIG_USB_DEBUG -static int debug = 1; -#else -static int debug; -#endif - -/* Use our own dbg macro */ - -#undef dbg -#ifndef DEBUG -#define DEBUG -#endif -#define dbg(format, ...) \ -do { \ - if (debug) \ - pr_debug(format "\n", ##__VA_ARGS__); \ -} while (0) /* Module and Version Information */ #define DRIVER_VERSION "1.02" @@ -73,10 +56,6 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE(DRIVER_LICENSE); -/* Module Parameters */ -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Debug enabled or not"); - #define WATCHDOG_HEARTBEAT 0 /* default heartbeat = delay-time from dip-switches */ static int heartbeat = WATCHDOG_HEARTBEAT; @@ -193,6 +172,7 @@ static void usb_pcwd_intr_done(struct urb *urb) struct usb_pcwd_private *usb_pcwd = (struct usb_pcwd_private *)urb->context; unsigned char *data = usb_pcwd->intr_buffer; + struct device *dev = &usb_pcwd->interface->dev; int retval; switch (urb->status) { @@ -202,17 +182,17 @@ static void usb_pcwd_intr_done(struct urb *urb) case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __func__, - urb->status); + dev_dbg(dev, "%s - urb shutting down with status: %d", + __func__, urb->status); return; /* -EPIPE: should clear the halt */ default: /* error */ - dbg("%s - nonzero urb status received: %d", __func__, - urb->status); + dev_dbg(dev, "%s - nonzero urb status received: %d", + __func__, urb->status); goto resubmit; } - dbg("received following data cmd=0x%02x msb=0x%02x lsb=0x%02x", + dev_dbg(dev, "received following data cmd=0x%02x msb=0x%02x lsb=0x%02x", data[0], data[1], data[2]); usb_pcwd->cmd_command = data[0]; @@ -251,7 +231,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, buf[2] = *lsb; /* Byte 2 = Data LSB */ buf[3] = buf[4] = buf[5] = 0; /* All other bytes not used */ - dbg("sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x", + dev_dbg(&usb_pcwd->interface->dev, + "sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x", buf[0], buf[1], buf[2]); atomic_set(&usb_pcwd->cmd_received, 0); @@ -260,8 +241,9 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, HID_REQ_SET_REPORT, HID_DT_REPORT, 0x0200, usb_pcwd->interface_number, buf, 6, USB_COMMAND_TIMEOUT) != 6) { - dbg("usb_pcwd_send_command: error in usb_control_msg for " - "cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb); + dev_dbg(&usb_pcwd->interface->dev, + "usb_pcwd_send_command: error in usb_control_msg for cmd 0x%x 0x%x 0x%x\n", + cmd, *msb, *lsb); } /* wait till the usb card processed the command, * with a max. timeout of USB_COMMAND_TIMEOUT */ -- cgit v0.10.2 From 025d44309f92bd5e3d1b2c7fab66836ab25b541b Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 11:24:41 +0530 Subject: USB: core: correct spelling mistakes in comments and warning Signed-off-by: Rahul Bedarkar Acked-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index 2355974..684ef70 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -2,7 +2,7 @@ * DMA memory management for framework level HCD code (hc_driver) * * This implementation plugs in through generic "usb_bus" level methods, - * and should work with all USB controllers, regardles of bus type. + * and should work with all USB controllers, regardless of bus type. */ #include diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 967152a..90e18f6 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -118,7 +118,7 @@ module_param(usbfs_memory_mb, uint, 0644); MODULE_PARM_DESC(usbfs_memory_mb, "maximum MB allowed for usbfs buffers (0 = no limit)"); -/* Hard limit, necessary to avoid aithmetic overflow */ +/* Hard limit, necessary to avoid arithmetic overflow */ #define USBFS_XFER_MAX (UINT_MAX / 2 - 1000000) static atomic_t usbfs_memory_usage; /* Total memory currently allocated */ diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 6297c9e..199aaea 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1298,7 +1298,7 @@ EXPORT_SYMBOL_GPL(usb_hcd_unlink_urb_from_ep); * DMA framework is dma_declare_coherent_memory() * * - So we use that, even though the primary requirement - * is that the memory be "local" (hence addressible + * is that the memory be "local" (hence addressable * by that device), not "coherent". * */ diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 9e49c6d..c1422a0 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2513,7 +2513,7 @@ static bool use_new_scheme(struct usb_device *udev, int retry) static int hub_port_reset(struct usb_hub *hub, int port1, struct usb_device *udev, unsigned int delay, bool warm); -/* Is a USB 3.0 port in the Inactive or Complinance Mode state? +/* Is a USB 3.0 port in the Inactive or Compliance Mode state? * Port worm reset is required to recover */ static bool hub_port_warm_reset_required(struct usb_hub *hub, u16 portstatus) @@ -3321,7 +3321,8 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) udev = hub->ports[port1 - 1]->child; if (udev && udev->can_submit) { - dev_warn(&intf->dev, "port %d nyet suspended\n", port1); + dev_warn(&intf->dev, "port %d not suspended yet\n", + port1); if (PMSG_IS_AUTO(msg)) return -EBUSY; } @@ -4912,7 +4913,7 @@ static void hub_events(void) static int hub_thread(void *__unused) { - /* khubd needs to be freezable to avoid intefering with USB-PERSIST + /* khubd needs to be freezable to avoid interfering with USB-PERSIST * port handover. Otherwise it might see that a full-speed device * was gone before the EHCI controller had handed its port over to * the companion full-speed controller. diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 4e4790d..df629a3 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -78,7 +78,7 @@ struct usb_hub { /** * struct usb port - kernel's representation of a usb port - * @child: usb device attatched to the port + * @child: usb device attached to the port * @dev: generic device interface * @port_owner: port's owner * @connect_type: port's connect type diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index bb31597..854a419 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -218,7 +218,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg); * * Return: * If successful, 0. Otherwise a negative error number. The number of actual - * bytes transferred will be stored in the @actual_length paramater. + * bytes transferred will be stored in the @actual_length parameter. * */ int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe, @@ -518,7 +518,7 @@ void usb_sg_wait(struct usb_sg_request *io) io->urbs[i]->dev = io->dev; retval = usb_submit_urb(io->urbs[i], GFP_ATOMIC); - /* after we submit, let completions or cancelations fire; + /* after we submit, let completions or cancellations fire; * we handshake using io->status. */ spin_unlock_irq(&io->lock); diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 52a97ad..1236c60 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -837,7 +837,7 @@ void usb_remove_sysfs_dev_files(struct usb_device *udev) device_remove_bin_file(dev, &dev_bin_attr_descriptors); } -/* Interface Accociation Descriptor fields */ +/* Interface Association Descriptor fields */ #define usb_intf_assoc_attr(field, format_string) \ static ssize_t \ iad_##field##_show(struct device *dev, struct device_attribute *attr, \ diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index f4cb7fc..172d269 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(usb_init_urb); * valid options for this. * * Creates an urb for the USB driver to use, initializes a few internal - * structures, incrementes the usage counter, and returns a pointer to it. + * structures, increments the usage counter, and returns a pointer to it. * * If the driver want to use this urb for interrupt, control, or bulk * endpoints, pass '0' as the number of iso packets. @@ -281,7 +281,7 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb); * * Device drivers must explicitly request that repetition, by ensuring that * some URB is always on the endpoint's queue (except possibly for short - * periods during completion callacks). When there is no longer an urb + * periods during completion callbacks). When there is no longer an urb * queued, the endpoint's bandwidth reservation is canceled. This means * drivers can use their completion handlers to ensure they keep bandwidth * they need, by reinitializing and resubmitting the just-completed urb diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c index 4e243c3..d7cb822 100644 --- a/drivers/usb/core/usb-acpi.c +++ b/drivers/usb/core/usb-acpi.c @@ -92,7 +92,7 @@ static int usb_acpi_check_port_connect_type(struct usb_device *hdev, int ret = 0; /* - * Accoding to ACPI Spec 9.13. PLD indicates whether usb port is + * According to ACPI Spec 9.13. PLD indicates whether usb port is * user visible and _UPC indicates whether it is connectable. If * the port was visible and connectable, it could be freely connected * and disconnected with USB devices. If no visible and connectable, -- cgit v0.10.2 From 1076e7a4d91230eb277735ce297fe544c0202d30 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 12:37:52 +0530 Subject: USB: wusbcore: correct spelling mistakes in comments and error string Signed-off-by: Rahul Bedarkar Acked-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c index 56310fc..514dba1 100644 --- a/drivers/usb/wusbcore/cbaf.c +++ b/drivers/usb/wusbcore/cbaf.c @@ -184,7 +184,7 @@ static int cbaf_check(struct cbaf *cbaf) assoc_request = itr; if (top - itr < sizeof(*assoc_request)) { - dev_err(dev, "Not enough data to decode associaton " + dev_err(dev, "Not enough data to decode association " "request (%zu vs %zu bytes needed)\n", top - itr, sizeof(*assoc_request)); break; diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c index 7e4bf95..9a95b2d 100644 --- a/drivers/usb/wusbcore/crypto.c +++ b/drivers/usb/wusbcore/crypto.c @@ -87,7 +87,7 @@ struct aes_ccm_block { * B1 contains l(a), the MAC header, the encryption offset and padding. * * If EO is nonzero, additional blocks are built from payload bytes - * until EO is exahusted (FIXME: padding to 16 bytes, I guess). The + * until EO is exhausted (FIXME: padding to 16 bytes, I guess). The * padding is not xmitted. */ diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c index f14e792..3b959e8 100644 --- a/drivers/usb/wusbcore/devconnect.c +++ b/drivers/usb/wusbcore/devconnect.c @@ -265,9 +265,9 @@ static void wusbhc_devconnect_acked_work(struct work_struct *work) * Addresses: because WUSB hosts have no downstream hubs, we can do a * 1:1 mapping between 'port number' and device * address. This simplifies many things, as during this - * initial connect phase the USB stack has no knoledge of + * initial connect phase the USB stack has no knowledge of * the device and hasn't assigned an address yet--we know - * USB's choose_address() will use the same euristics we + * USB's choose_address() will use the same heuristics we * use here, so we can assume which address will be assigned. * * USB stack always assigns address 1 to the root hub, so diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index 790c0b5..c322dca 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -56,7 +56,7 @@ void wusbhc_sec_destroy(struct wusbhc *wusbhc) * @wusb_dev: the device whose PTK the TKID is for * (or NULL for a TKID for a GTK) * - * The generated TKID consist of two parts: the device's authenicated + * The generated TKID consists of two parts: the device's authenticated * address (or 0 or a GTK); and an incrementing number. This ensures * that TKIDs cannot be shared between devices and by the time the * incrementing number wraps around the older TKIDs will no longer be diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index b93d2cb..529893f 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -36,7 +36,7 @@ * * hcd glue with the USB API Host Controller Interface API. * - * nep Notification EndPoint managent: collect notifications + * nep Notification EndPoint management: collect notifications * and queue them with the workqueue daemon. * * Handle notifications as coming from the NEP. Sends them @@ -144,7 +144,7 @@ enum wa_quirks { * * @wa_descr Can be accessed without locking because it is in * the same area where the device descriptors were - * read, so it is guaranteed to exist umodified while + * read, so it is guaranteed to exist unmodified while * the device exists. * * Endianess has been converted to CPU's. @@ -167,8 +167,8 @@ enum wa_quirks { * submitted from an atomic context). * * FIXME: this needs to be layered up: a wusbhc layer (for sharing - * comonalities with WHCI), a wa layer (for sharing - * comonalities with DWA-RC). + * commonalities with WHCI), a wa layer (for sharing + * commonalities with DWA-RC). */ struct wahc { struct usb_device *usb_dev; @@ -345,7 +345,7 @@ extern void wa_handle_notif_xfer(struct wahc *, struct wa_notif_hdr *); * it...no RC specific function is called...unless I miss * something. * - * FIXME: has to go away in favour of an 'struct' hcd based sollution + * FIXME: has to go away in favour of a 'struct' hcd based solution */ static inline struct wahc *wa_get(struct wahc *wa) { diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index accdd15..c601c74 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -308,7 +308,7 @@ out: /* * Aim an rpipe to its device & endpoint destination * - * Make sure we change the address to unauthenticathed if the device + * Make sure we change the address to unauthenticated if the device * is WUSB and it is not authenticated. */ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa, diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c index 742c607..4dd943a 100644 --- a/drivers/usb/wusbcore/wusbhc.c +++ b/drivers/usb/wusbcore/wusbhc.c @@ -419,7 +419,7 @@ EXPORT_SYMBOL_GPL(wusb_cluster_id_put); * - After a successful transfer, update the trust timeout timestamp * for the WUSB device. * - * - [WUSB] sections 4.13 and 7.5.1 specifies the stop retrasmittion + * - [WUSB] sections 4.13 and 7.5.1 specify the stop retransmission * condition for the WCONNECTACK_IE is that the host has observed * the associated device responding to a control transfer. */ -- cgit v0.10.2 From b0b4cb5cd15fde15efb52fcef8b7f041c17d9a07 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 11:19:04 +0530 Subject: USB: wusbcore: fix up minor coding style issues in cbaf.c Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c index 514dba1..da1b872 100644 --- a/drivers/usb/wusbcore/cbaf.c +++ b/drivers/usb/wusbcore/cbaf.c @@ -235,7 +235,7 @@ static int cbaf_check(struct cbaf *cbaf) static const struct wusb_cbaf_host_info cbaf_host_info_defaults = { .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, - .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), + .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, .AssociationSubTypeId = cpu_to_le16(AR_TYPE_WUSB_RETRIEVE_HOST_INFO), .CHID_hdr = WUSB_AR_CHID, @@ -260,7 +260,8 @@ static int cbaf_send_host_info(struct cbaf *cbaf) hi->HostFriendlyName_hdr.len = cpu_to_le16(name_len); hi_size = sizeof(*hi) + name_len; - return usb_control_msg(cbaf->usb_dev, usb_sndctrlpipe(cbaf->usb_dev, 0), + return usb_control_msg(cbaf->usb_dev, + usb_sndctrlpipe(cbaf->usb_dev, 0), CBAF_REQ_SET_ASSOCIATION_RESPONSE, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0x0101, @@ -290,7 +291,8 @@ static int cbaf_cdid_get(struct cbaf *cbaf) 0x0200, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, di, cbaf->buffer_size, USB_CTRL_GET_TIMEOUT); if (result < 0) { - dev_err(dev, "Cannot request device information: %d\n", result); + dev_err(dev, "Cannot request device information: %d\n", + result); return result; } @@ -491,11 +493,11 @@ static DEVICE_ATTR(wusb_device_name, 0600, cbaf_wusb_device_name_show, NULL); static const struct wusb_cbaf_cc_data cbaf_cc_data_defaults = { .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, - .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), + .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, .AssociationSubTypeId = cpu_to_le16(AR_TYPE_WUSB_ASSOCIATE), .Length_hdr = WUSB_AR_Length, - .Length = cpu_to_le32(sizeof(struct wusb_cbaf_cc_data)), + .Length = cpu_to_le32(sizeof(struct wusb_cbaf_cc_data)), .ConnectionContext_hdr = WUSB_AR_ConnectionContext, .BandGroups_hdr = WUSB_AR_BandGroups, }; -- cgit v0.10.2 From 62316ff4bc619d5c0ac9d08c95e67282162dc93b Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 14:10:24 +0530 Subject: USB: wusbcore: fix up line break coding style issues in wa-hc.h Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index 529893f..a2ef84b 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -197,10 +197,10 @@ struct wahc { struct mutex rpipe_mutex; /* assigning resources to endpoints */ /* - * dti_state is used to track the state of the dti_urb. When dti_state + * dti_state is used to track the state of the dti_urb. When dti_state * is WA_DTI_ISOC_PACKET_STATUS_PENDING, dti_isoc_xfer_in_progress and - * dti_isoc_xfer_seg identify which xfer the incoming isoc packet status - * refers to. + * dti_isoc_xfer_seg identify which xfer the incoming isoc packet + * status refers to. */ enum wa_dti_state dti_state; u32 dti_isoc_xfer_in_progress; @@ -211,7 +211,7 @@ struct wahc { void *dti_buf; size_t dti_buf_size; - unsigned long dto_in_use; /* protect dto endoint serialization. */ + unsigned long dto_in_use; /* protect dto endoint serialization */ s32 status; /* For reading status */ -- cgit v0.10.2 From 521aea08e3b8203a3f4211b1b6c37a4c1533e6e2 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 14:09:45 +0530 Subject: USB: wusbcore: fix up line break coding style issues in security.c Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index c322dca..95be995 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -33,7 +33,8 @@ static void wusbhc_gtk_rekey_work(struct work_struct *work); int wusbhc_sec_create(struct wusbhc *wusbhc) { - wusbhc->gtk.descr.bLength = sizeof(wusbhc->gtk.descr) + sizeof(wusbhc->gtk.data); + wusbhc->gtk.descr.bLength = sizeof(wusbhc->gtk.descr) + + sizeof(wusbhc->gtk.data); wusbhc->gtk.descr.bDescriptorType = USB_DT_KEY; wusbhc->gtk.descr.bReserved = 0; wusbhc->gtk_index = 0; @@ -138,7 +139,7 @@ const char *wusb_et_name(u8 x) case USB_ENC_TYPE_WIRED: return "wired"; case USB_ENC_TYPE_CCM_1: return "CCM-1"; case USB_ENC_TYPE_RSA_1: return "RSA-1"; - default: return "unknown"; + default: return "unknown"; } } EXPORT_SYMBOL_GPL(wusb_et_name); @@ -222,7 +223,8 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc, secd_size = le16_to_cpu(secd->wTotalLength); new_secd = krealloc(secd, secd_size, GFP_KERNEL); if (new_secd == NULL) { - dev_err(dev, "Can't allocate space for security descriptors\n"); + dev_err(dev, + "Can't allocate space for security descriptors\n"); goto out; } secd = new_secd; @@ -377,7 +379,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, hs[0].bReserved = 0; memcpy(hs[0].CDID, &wusb_dev->cdid, sizeof(hs[0].CDID)); get_random_bytes(&hs[0].nonce, sizeof(hs[0].nonce)); - memset(hs[0].MIC, 0, sizeof(hs[0].MIC)); /* Per WUSB1.0[T7-22] */ + memset(hs[0].MIC, 0, sizeof(hs[0].MIC)); /* Per WUSB1.0[T7-22] */ result = usb_control_msg( usb_dev, usb_sndctrlpipe(usb_dev, 0), @@ -424,7 +426,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, } /* Setup the CCM nonce */ - memset(&ccm_n.sfn, 0, sizeof(ccm_n.sfn)); /* Per WUSB1.0[6.5.2] */ + memset(&ccm_n.sfn, 0, sizeof(ccm_n.sfn)); /* Per WUSB1.0[6.5.2] */ memcpy(ccm_n.tkid, &tkid_le, sizeof(ccm_n.tkid)); ccm_n.src_addr = wusbhc->uwb_rc->uwb_dev.dev_addr; ccm_n.dest_addr.data[0] = wusb_dev->addr; @@ -555,11 +557,13 @@ static void wusbhc_gtk_rekey_work(struct work_struct *work) list_for_each_entry_safe(wusb_dev, wusb_dev_next, &rekey_list, rekey_node) { list_del_init(&wusb_dev->rekey_node); - dev_dbg(&wusb_dev->usb_dev->dev, "%s: rekey device at port %d\n", + dev_dbg(&wusb_dev->usb_dev->dev, + "%s: rekey device at port %d\n", __func__, wusb_dev->port_idx); if (wusb_dev_set_gtk(wusbhc, wusb_dev) < 0) { - dev_err(&wusb_dev->usb_dev->dev, "%s: rekey device at port %d failed\n", + dev_err(&wusb_dev->usb_dev->dev, + "%s: rekey device at port %d failed\n", __func__, wusb_dev->port_idx); } wusb_dev_put(wusb_dev); -- cgit v0.10.2 From 486513179931649977edf24dfbde7d82e3d904b2 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 14:06:31 +0530 Subject: USB: wusbcore: fix up line break coding style issues in mmc.c Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/mmc.c b/drivers/usb/wusbcore/mmc.c index b71760c..4474126 100644 --- a/drivers/usb/wusbcore/mmc.c +++ b/drivers/usb/wusbcore/mmc.c @@ -206,13 +206,15 @@ int wusbhc_start(struct wusbhc *wusbhc) result = wusbhc_devconnect_start(wusbhc); if (result < 0) { - dev_err(dev, "error enabling device connections: %d\n", result); + dev_err(dev, "error enabling device connections: %d\n", + result); goto error_devconnect_start; } result = wusbhc_sec_start(wusbhc); if (result < 0) { - dev_err(dev, "error starting security in the HC: %d\n", result); + dev_err(dev, "error starting security in the HC: %d\n", + result); goto error_sec_start; } @@ -284,7 +286,8 @@ int wusbhc_chid_set(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid) wusbhc->uwb_rc = uwb_rc_get_by_grandpa(wusbhc->dev->parent); if (wusbhc->uwb_rc == NULL) { result = -ENODEV; - dev_err(wusbhc->dev, "Cannot get associated UWB Host Controller\n"); + dev_err(wusbhc->dev, + "Cannot get associated UWB Host Controller\n"); goto error_rc_get; } -- cgit v0.10.2 From a7737e3444b573512e47b64251e0822fff2e6614 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 14:13:10 +0530 Subject: USB: wusbcore: fix up coding style issues in wusbhc.c and wusbhc.h Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c index 4dd943a..3e1ba51 100644 --- a/drivers/usb/wusbcore/wusbhc.c +++ b/drivers/usb/wusbcore/wusbhc.c @@ -55,7 +55,8 @@ static struct wusbhc *usbhc_dev_to_wusbhc(struct device *dev) * value of trust_timeout is jiffies. */ static ssize_t wusb_trust_timeout_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); @@ -173,7 +174,8 @@ static ssize_t wusb_phy_rate_store(struct device *dev, wusbhc->phy_rate = phy_rate; return size; } -static DEVICE_ATTR(wusb_phy_rate, 0644, wusb_phy_rate_show, wusb_phy_rate_store); +static DEVICE_ATTR(wusb_phy_rate, 0644, wusb_phy_rate_show, + wusb_phy_rate_store); static ssize_t wusb_dnts_show(struct device *dev, struct device_attribute *attr, @@ -227,7 +229,8 @@ static ssize_t wusb_retry_count_store(struct device *dev, if (result != 1) return -EINVAL; - wusbhc->retry_count = max_t(uint8_t, retry_count, WUSB_RETRY_COUNT_MAX); + wusbhc->retry_count = max_t(uint8_t, retry_count, + WUSB_RETRY_COUNT_MAX); return size; } @@ -321,7 +324,8 @@ int wusbhc_b_create(struct wusbhc *wusbhc) result = sysfs_create_group(wusbhc_kobj(wusbhc), &wusbhc_attr_group); if (result < 0) { - dev_err(dev, "Cannot register WUSBHC attributes: %d\n", result); + dev_err(dev, "Cannot register WUSBHC attributes: %d\n", + result); goto error_create_attr_group; } @@ -425,7 +429,8 @@ EXPORT_SYMBOL_GPL(wusb_cluster_id_put); */ void wusbhc_giveback_urb(struct wusbhc *wusbhc, struct urb *urb, int status) { - struct wusb_dev *wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); + struct wusb_dev *wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, + urb->dev); if (status == 0 && wusb_dev) { wusb_dev->entry_ts = jiffies; diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h index 6bd3b81..2384add 100644 --- a/drivers/usb/wusbcore/wusbhc.h +++ b/drivers/usb/wusbcore/wusbhc.h @@ -164,7 +164,7 @@ struct wusb_port { * functions/operations that only deal with general Wireless USB HC * issues use this data type to refer to the host. * - * @usb_hcd Instantiation of a USB host controller + * @usb_hcd Instantiation of a USB host controller * (initialized by upper layer [HWA=HC or WHCI]. * * @dev Device that implements this; initialized by the @@ -196,7 +196,7 @@ struct wusb_port { * @ports_max Number of simultaneous device connections (fake * ports) this HC will take. Read-only. * - * @port Array of port status for each fake root port. Guaranteed to + * @port Array of port status for each fake root port. Guaranteed to * always be the same length during device existence * [this allows for some unlocked but referenced reading]. * @@ -329,7 +329,8 @@ void wusbhc_pal_unregister(struct wusbhc *wusbhc); * This is a safe assumption as @usb_dev->bus is referenced all the * time during the @usb_dev life cycle. */ -static inline struct usb_hcd *usb_hcd_get_by_usb_dev(struct usb_device *usb_dev) +static inline +struct usb_hcd *usb_hcd_get_by_usb_dev(struct usb_device *usb_dev) { struct usb_hcd *usb_hcd; usb_hcd = container_of(usb_dev->bus, struct usb_hcd, self); -- cgit v0.10.2 From 0c106d0aeb9585d1b6c36f6bcb3e7c2032c65048 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 14:12:24 +0530 Subject: USB: wusbcore: fix up coding style issues in wa-rpipe.c Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index c601c74..4f80f7c 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -184,7 +184,7 @@ EXPORT_SYMBOL_GPL(rpipe_destroy); /* * Locate an idle rpipe, create an structure for it and return it * - * @wa is referenced and unlocked + * @wa is referenced and unlocked * @crs enum rpipe_attr, required endpoint characteristics * * The rpipe can be used only sequentially (not in parallel). @@ -329,7 +329,8 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa, } unauth = usb_dev->wusb && !usb_dev->authenticated ? 0x80 : 0; __rpipe_reset(wa, le16_to_cpu(rpipe->descr.wRPipeIndex)); - atomic_set(&rpipe->segs_available, le16_to_cpu(rpipe->descr.wRequests)); + atomic_set(&rpipe->segs_available, + le16_to_cpu(rpipe->descr.wRequests)); /* FIXME: block allocation system; request with queuing and timeout */ /* FIXME: compute so seg_size > ep->maxpktsize */ rpipe->descr.wBlocks = cpu_to_le16(16); /* given */ @@ -553,4 +554,3 @@ void rpipe_clear_feature_stalled(struct wahc *wa, struct usb_host_endpoint *ep) mutex_unlock(&wa->rpipe_mutex); } EXPORT_SYMBOL_GPL(rpipe_clear_feature_stalled); - -- cgit v0.10.2 From 2627cb08129d7fa152f97dd0732736fb2df516ee Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sat, 4 Jan 2014 14:11:01 +0530 Subject: USB: wusbcore: fix up coding style issues in wa-nep.c Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/wusbcore/wa-nep.c b/drivers/usb/wusbcore/wa-nep.c index ada4e08..60a10d2 100644 --- a/drivers/usb/wusbcore/wa-nep.c +++ b/drivers/usb/wusbcore/wa-nep.c @@ -69,8 +69,8 @@ struct wa_notif_work { * [the wuswad daemon, basically] * * @_nw: Pointer to a descriptor which has the pointer to the - * @wa, the size of the buffer and the work queue - * structure (so we can free all when done). + * @wa, the size of the buffer and the work queue + * structure (so we can free all when done). * @returns 0 if ok, < 0 errno code on error. * * All notifications follow the same format; they need to start with a @@ -93,7 +93,8 @@ static void wa_notif_dispatch(struct work_struct *ws) { void *itr; u8 missing = 0; - struct wa_notif_work *nw = container_of(ws, struct wa_notif_work, work); + struct wa_notif_work *nw = container_of(ws, struct wa_notif_work, + work); struct wahc *wa = nw->wa; struct wa_notif_hdr *notif_hdr; size_t size; @@ -271,7 +272,8 @@ int wa_nep_create(struct wahc *wa, struct usb_interface *iface) wa->nep_buffer_size = 1024; wa->nep_buffer = kmalloc(wa->nep_buffer_size, GFP_KERNEL); if (wa->nep_buffer == NULL) { - dev_err(dev, "Unable to allocate notification's read buffer\n"); + dev_err(dev, + "Unable to allocate notification's read buffer\n"); goto error_nep_buffer; } wa->nep_urb = usb_alloc_urb(0, GFP_KERNEL); -- cgit v0.10.2 From 21395a1aac7ce1e19dbb43542a9e06cca2bfca01 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Mon, 6 Jan 2014 10:10:38 +0800 Subject: usb: chipidea: move malloced regmap directly into struct hw_bank Without this patch a seperate chunk of memory is allocated for the regmap array. As the regmap is always used it makes no sense to allocate a seperate memory block for it, this patch moves the regmap array directly into the struct hw_bank. Signed-off-by: Marc Kleine-Budde Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 1c94fc5..a71dc1c 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -26,6 +26,35 @@ #define ENDPT_MAX 32 /****************************************************************************** + * REGISTERS + *****************************************************************************/ +/* register indices */ +enum ci_hw_regs { + CAP_CAPLENGTH, + CAP_HCCPARAMS, + CAP_DCCPARAMS, + CAP_TESTMODE, + CAP_LAST = CAP_TESTMODE, + OP_USBCMD, + OP_USBSTS, + OP_USBINTR, + OP_DEVICEADDR, + OP_ENDPTLISTADDR, + OP_PORTSC, + OP_DEVLC, + OP_OTGSC, + OP_USBMODE, + OP_ENDPTSETUPSTAT, + OP_ENDPTPRIME, + OP_ENDPTFLUSH, + OP_ENDPTSTAT, + OP_ENDPTCOMPLETE, + OP_ENDPTCTRL, + /* endptctrl1..15 follow */ + OP_LAST = OP_ENDPTCTRL + ENDPT_MAX / 2, +}; + +/****************************************************************************** * STRUCTURES *****************************************************************************/ /** @@ -98,7 +127,7 @@ struct hw_bank { void __iomem *cap; void __iomem *op; size_t size; - void __iomem **regmap; + void __iomem *regmap[OP_LAST + 1]; }; /** @@ -209,38 +238,6 @@ static inline void ci_role_stop(struct ci_hdrc *ci) ci->roles[role]->stop(ci); } -/****************************************************************************** - * REGISTERS - *****************************************************************************/ -/* register size */ -#define REG_BITS (32) - -/* register indices */ -enum ci_hw_regs { - CAP_CAPLENGTH, - CAP_HCCPARAMS, - CAP_DCCPARAMS, - CAP_TESTMODE, - CAP_LAST = CAP_TESTMODE, - OP_USBCMD, - OP_USBSTS, - OP_USBINTR, - OP_DEVICEADDR, - OP_ENDPTLISTADDR, - OP_PORTSC, - OP_DEVLC, - OP_OTGSC, - OP_USBMODE, - OP_ENDPTSETUPSTAT, - OP_ENDPTPRIME, - OP_ENDPTFLUSH, - OP_ENDPTSTAT, - OP_ENDPTCOMPLETE, - OP_ENDPTCTRL, - /* endptctrl1..15 follow */ - OP_LAST = OP_ENDPTCTRL + ENDPT_MAX / 2, -}; - /** * hw_read: reads from a hw register * @reg: register index diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 9a5ef20..b9385c1 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -123,13 +123,6 @@ static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm) { int i; - kfree(ci->hw_bank.regmap); - - ci->hw_bank.regmap = kzalloc((OP_LAST + 1) * sizeof(void *), - GFP_KERNEL); - if (!ci->hw_bank.regmap) - return -ENOMEM; - for (i = 0; i < OP_ENDPTCTRL; i++) ci->hw_bank.regmap[i] = (i <= CAP_LAST ? ci->hw_bank.cap : ci->hw_bank.op) + @@ -681,7 +674,6 @@ static int ci_hdrc_remove(struct platform_device *pdev) ci_role_destroy(ci); ci_hdrc_enter_lpm(ci, true); ci_usb_phy_destroy(ci); - kfree(ci->hw_bank.regmap); return 0; } -- cgit v0.10.2 From 987e7bc3484fdc8c8018e1368608f6a81053b86f Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Mon, 6 Jan 2014 10:10:39 +0800 Subject: usb: chipidea: mark register map as "const" and convert to u8 This patch makes the controller register map ci_regs_nolpm and ci_regs_lpm as "const". Further, as all offset fit into a single byte, the type is changed from uintptr_t to u8. Signed-off-by: Marc Kleine-Budde Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index b9385c1..458d8e4 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -75,48 +75,48 @@ #include "otg.h" /* Controller register map */ -static uintptr_t ci_regs_nolpm[] = { - [CAP_CAPLENGTH] = 0x000UL, - [CAP_HCCPARAMS] = 0x008UL, - [CAP_DCCPARAMS] = 0x024UL, - [CAP_TESTMODE] = 0x038UL, - [OP_USBCMD] = 0x000UL, - [OP_USBSTS] = 0x004UL, - [OP_USBINTR] = 0x008UL, - [OP_DEVICEADDR] = 0x014UL, - [OP_ENDPTLISTADDR] = 0x018UL, - [OP_PORTSC] = 0x044UL, - [OP_DEVLC] = 0x084UL, - [OP_OTGSC] = 0x064UL, - [OP_USBMODE] = 0x068UL, - [OP_ENDPTSETUPSTAT] = 0x06CUL, - [OP_ENDPTPRIME] = 0x070UL, - [OP_ENDPTFLUSH] = 0x074UL, - [OP_ENDPTSTAT] = 0x078UL, - [OP_ENDPTCOMPLETE] = 0x07CUL, - [OP_ENDPTCTRL] = 0x080UL, +static const u8 ci_regs_nolpm[] = { + [CAP_CAPLENGTH] = 0x00U, + [CAP_HCCPARAMS] = 0x08U, + [CAP_DCCPARAMS] = 0x24U, + [CAP_TESTMODE] = 0x38U, + [OP_USBCMD] = 0x00U, + [OP_USBSTS] = 0x04U, + [OP_USBINTR] = 0x08U, + [OP_DEVICEADDR] = 0x14U, + [OP_ENDPTLISTADDR] = 0x18U, + [OP_PORTSC] = 0x44U, + [OP_DEVLC] = 0x84U, + [OP_OTGSC] = 0x64U, + [OP_USBMODE] = 0x68U, + [OP_ENDPTSETUPSTAT] = 0x6CU, + [OP_ENDPTPRIME] = 0x70U, + [OP_ENDPTFLUSH] = 0x74U, + [OP_ENDPTSTAT] = 0x78U, + [OP_ENDPTCOMPLETE] = 0x7CU, + [OP_ENDPTCTRL] = 0x80U, }; -static uintptr_t ci_regs_lpm[] = { - [CAP_CAPLENGTH] = 0x000UL, - [CAP_HCCPARAMS] = 0x008UL, - [CAP_DCCPARAMS] = 0x024UL, - [CAP_TESTMODE] = 0x0FCUL, - [OP_USBCMD] = 0x000UL, - [OP_USBSTS] = 0x004UL, - [OP_USBINTR] = 0x008UL, - [OP_DEVICEADDR] = 0x014UL, - [OP_ENDPTLISTADDR] = 0x018UL, - [OP_PORTSC] = 0x044UL, - [OP_DEVLC] = 0x084UL, - [OP_OTGSC] = 0x0C4UL, - [OP_USBMODE] = 0x0C8UL, - [OP_ENDPTSETUPSTAT] = 0x0D8UL, - [OP_ENDPTPRIME] = 0x0DCUL, - [OP_ENDPTFLUSH] = 0x0E0UL, - [OP_ENDPTSTAT] = 0x0E4UL, - [OP_ENDPTCOMPLETE] = 0x0E8UL, - [OP_ENDPTCTRL] = 0x0ECUL, +static const u8 ci_regs_lpm[] = { + [CAP_CAPLENGTH] = 0x00U, + [CAP_HCCPARAMS] = 0x08U, + [CAP_DCCPARAMS] = 0x24U, + [CAP_TESTMODE] = 0xFCU, + [OP_USBCMD] = 0x00U, + [OP_USBSTS] = 0x04U, + [OP_USBINTR] = 0x08U, + [OP_DEVICEADDR] = 0x14U, + [OP_ENDPTLISTADDR] = 0x18U, + [OP_PORTSC] = 0x44U, + [OP_DEVLC] = 0x84U, + [OP_OTGSC] = 0xC4U, + [OP_USBMODE] = 0xC8U, + [OP_ENDPTSETUPSTAT] = 0xD8U, + [OP_ENDPTPRIME] = 0xDCU, + [OP_ENDPTFLUSH] = 0xE0U, + [OP_ENDPTSTAT] = 0xE4U, + [OP_ENDPTCOMPLETE] = 0xE8U, + [OP_ENDPTCTRL] = 0xECU, }; static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm) -- cgit v0.10.2 From a8671d5da68ff1ed07c6be4d77db87c7084f5908 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Mon, 6 Jan 2014 10:10:40 +0800 Subject: usb: doc: rename ci13xxx-imx.txt to ci-hdrc-imx.txt We have already renamed the file name, change doc name at this patch. Cc: devicetree@vger.kernel.org Cc: linux-doc@vger.kernel.org Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt new file mode 100644 index 0000000..b4b5b79 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt @@ -0,0 +1,31 @@ +* Freescale i.MX ci13xxx usb controllers + +Required properties: +- compatible: Should be "fsl,imx27-usb" +- reg: Should contain registers location and length +- interrupts: Should contain controller interrupt + +Recommended properies: +- phy_type: the type of the phy connected to the core. Should be one + of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this + property the PORTSC register won't be touched +- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg" + +Optional properties: +- fsl,usbphy: phandler of usb phy that connects to the only one port +- fsl,usbmisc: phandler of non-core register device, with one argument + that indicate usb controller index +- vbus-supply: regulator for vbus +- disable-over-current: disable over current detect +- external-vbus-divider: enables off-chip resistor divider for Vbus + +Examples: +usb@02184000 { /* USB OTG */ + compatible = "fsl,imx6q-usb", "fsl,imx27-usb"; + reg = <0x02184000 0x200>; + interrupts = <0 43 0x04>; + fsl,usbphy = <&usbphy1>; + fsl,usbmisc = <&usbmisc 0>; + disable-over-current; + external-vbus-divider; +}; diff --git a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt deleted file mode 100644 index b4b5b79..0000000 --- a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt +++ /dev/null @@ -1,31 +0,0 @@ -* Freescale i.MX ci13xxx usb controllers - -Required properties: -- compatible: Should be "fsl,imx27-usb" -- reg: Should contain registers location and length -- interrupts: Should contain controller interrupt - -Recommended properies: -- phy_type: the type of the phy connected to the core. Should be one - of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this - property the PORTSC register won't be touched -- dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg" - -Optional properties: -- fsl,usbphy: phandler of usb phy that connects to the only one port -- fsl,usbmisc: phandler of non-core register device, with one argument - that indicate usb controller index -- vbus-supply: regulator for vbus -- disable-over-current: disable over current detect -- external-vbus-divider: enables off-chip resistor divider for Vbus - -Examples: -usb@02184000 { /* USB OTG */ - compatible = "fsl,imx6q-usb", "fsl,imx27-usb"; - reg = <0x02184000 0x200>; - interrupts = <0 43 0x04>; - fsl,usbphy = <&usbphy1>; - fsl,usbmisc = <&usbmisc 0>; - disable-over-current; - external-vbus-divider; -}; -- cgit v0.10.2 From 30666249eae3b04875d514dea557d1ab1468c006 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Mon, 6 Jan 2014 10:10:43 +0800 Subject: usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28 Due to imx28 needs ARM swp instruction for writing, we set CI_HDRC_IMX28_WRITE_FIX for imx28. Signed-off-by: Peter Chen Signed-off-by: Marc Kleine-Budde Tested-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index bb5d976..c00f772 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -23,6 +23,26 @@ #include "ci.h" #include "ci_hdrc_imx.h" +#define CI_HDRC_IMX_IMX28_WRITE_FIX BIT(0) + +struct ci_hdrc_imx_platform_flag { + unsigned int flags; +}; + +static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { +}; + +static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { + .flags = CI_HDRC_IMX_IMX28_WRITE_FIX, +}; + +static const struct of_device_id ci_hdrc_imx_dt_ids[] = { + { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, + { .compatible = "fsl,imx27-usb", .data = &imx27_usb_data}, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); + struct ci_hdrc_imx_data { struct usb_phy *phy; struct platform_device *ci_pdev; @@ -82,6 +102,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) CI_HDRC_DISABLE_STREAMING, }; int ret; + const struct of_device_id *of_id = + of_match_device(ci_hdrc_imx_dt_ids, &pdev->dev); + const struct ci_hdrc_imx_platform_flag *imx_platform_flag = of_id->data; data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) { @@ -115,6 +138,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) pdata.phy = data->phy; + if (imx_platform_flag->flags & CI_HDRC_IMX_IMX28_WRITE_FIX) + pdata.flags |= CI_HDRC_IMX28_WRITE_FIX; + ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (ret) goto err_clk; @@ -173,12 +199,6 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id ci_hdrc_imx_dt_ids[] = { - { .compatible = "fsl,imx27-usb", }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); - static struct platform_driver ci_hdrc_imx_driver = { .probe = ci_hdrc_imx_probe, .remove = ci_hdrc_imx_remove, -- cgit v0.10.2 From c1f15196ac3b541d084dc80a8fbd8a74c6a0bd44 Mon Sep 17 00:00:00 2001 From: Colin Leitner Date: Mon, 6 Jan 2014 21:33:54 +0100 Subject: USB: ftdi_sio: added CS5 quirk for broken smartcard readers Genuine FTDI chips support only CS7/8. A previous fix in commit 8704211f65a2 ("USB: ftdi_sio: fixed handling of unsupported CSIZE setting") enforced this limitation and reported it back to userspace. However, certain types of smartcard readers depend on specific driver behaviour that requests 0 data bits (not 5) to change into a different operating mode if CS5 has been set. This patch reenables this behaviour for all FTDI devices. Tagged to be added to stable, because it affects a lot of users of embedded systems which rely on these readers to work properly. Cc: stable Reported-by: Heinrich Siebmanns Tested-by: Heinrich Siebmanns Signed-off-by: Colin Leitner Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index a4bebac..5057201 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -2121,10 +2121,20 @@ static void ftdi_set_termios(struct tty_struct *tty, } /* - * All FTDI UART chips are limited to CS7/8. We won't pretend to + * All FTDI UART chips are limited to CS7/8. We shouldn't pretend to * support CS5/6 and revert the CSIZE setting instead. + * + * CS5 however is used to control some smartcard readers which abuse + * this limitation to switch modes. Original FTDI chips fall back to + * eight data bits. + * + * TODO: Implement a quirk to only allow this with mentioned + * readers. One I know of (Argolis Smartreader V1) + * returns "USB smartcard server" as iInterface string. + * The vendor didn't bother with a custom VID/PID of + * course. */ - if ((C_CSIZE(tty) != CS8) && (C_CSIZE(tty) != CS7)) { + if (C_CSIZE(tty) == CS6) { dev_warn(ddev, "requested CSIZE setting not supported\n"); termios->c_cflag &= ~CSIZE; @@ -2171,6 +2181,9 @@ no_skip: urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE; } switch (cflag & CSIZE) { + case CS5: + dev_dbg(ddev, "Setting CS5 quirk\n"); + break; case CS7: urb_value |= 7; dev_dbg(ddev, "Setting CS7\n"); -- cgit v0.10.2 From 62e3986cae512244b97a9b92be68df2808c8bec7 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 7 Jan 2014 21:41:15 +0800 Subject: usb: gadget: s3c-hsotg: remove duplicated include from s3c-hsotg.c Remove duplicated include. Signed-off-by: Wei Yongjun Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index c0ff1cb..1172eae 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -31,7 +31,6 @@ #include #include #include -#include #include #include -- cgit v0.10.2 From d85b277ed1d3ff7b6084bf13963ab0a66544e81c Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 7 Jan 2014 21:40:45 +0800 Subject: usb: gadget: remove unused variable in gr_queue_int() The variable 'dev' is initialized but never used otherwise, so remove the unused variable. Signed-off-by: Wei Yongjun Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/gadget/gr_udc.c b/drivers/usb/gadget/gr_udc.c index 5f9c659..483d5a8 100644 --- a/drivers/usb/gadget/gr_udc.c +++ b/drivers/usb/gadget/gr_udc.c @@ -663,9 +663,6 @@ static inline int gr_queue_int(struct gr_ep *ep, struct gr_request *req, static void gr_ep_nuke(struct gr_ep *ep) { struct gr_request *req; - struct gr_udc *dev; - - dev = ep->dev; ep->stopped = 1; ep->dma_start = 0; -- cgit v0.10.2 From d6c9ea9069af684358efedcaf2f2f687f51c58ee Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Mon, 6 Jan 2014 03:16:32 +0000 Subject: xhci: Avoid infinite loop when sg urb requires too many trbs Currently prepare_ring() returns -ENOMEM if the urb won't fit into a single ring segment. usb_sg_wait() treats this error as a temporary condition and will keep retrying until something else goes wrong. The number of retries should be limited in usb_sg_wait(), but also prepare_ring() should not return an error code that suggests it might be worth retrying. Change it to -EINVAL. Reported-by: jidanni@jidanni.org References: http://bugs.debian.org/733907 Fixes: 35773dac5f86 ('usb: xhci: Link TRB must not occur within a USB payload burst') Cc: stable # 3.12 Signed-off-by: Ben Hutchings Signed-off-by: Sarah Sharp diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 09b2b55..a0b248c 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -3000,7 +3000,7 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, if (num_trbs >= TRBS_PER_SEGMENT) { xhci_err(xhci, "Too many fragments %d, max %d\n", num_trbs, TRBS_PER_SEGMENT - 1); - return -ENOMEM; + return -EINVAL; } nop_cmd = cpu_to_le32(TRB_TYPE(TRB_TR_NOOP) | -- cgit v0.10.2 From f2d9b991c549f159dc9ae81f77d8206c790cbfee Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Mon, 6 Jan 2014 13:07:03 -0800 Subject: xhci: Set scatter-gather limit to avoid failed block writes. Commit 35773dac5f862cb1c82ea151eba3e2f6de51ec3e "usb: xhci: Link TRB must not occur within a USB payload burst" attempted to fix an issue found with USB ethernet adapters, and inadvertently broke USB storage devices. The patch attempts to ensure that transfers never span a segment, and rejects transfers that have more than 63 entries (or possibly less, if some entries cross 64KB boundaries). usb-storage limits the maximum transfer size to 120K, and we had assumed the block layer would pass a scatter-gather list of 4K entries, resulting in no more than 31 sglist entries: http://marc.info/?l=linux-usb&m=138498190419312&w=2 That assumption was wrong, since we've seen the driver reject a write that was 218 sectors long (of probably 512 bytes each): Jan 1 07:04:49 jidanni5 kernel: [ 559.624704] xhci_hcd 0000:00:14.0: Too many fragments 79, max 63 ... Jan 1 07:04:58 jidanni5 kernel: [ 568.622583] Write(10): 2a 00 00 06 85 0e 00 00 da 00 Limit the number of scatter-gather entries to half a ring segment. That should be margin enough in case some entries cross 64KB boundaries. Increase the number of TRBs per segment from 64 to 256, which should result in ring segments fitting on a 4K page. Signed-off-by: Sarah Sharp Reported-by: jidanni@jidanni.org References: http://bugs.debian.org/733907 Fixes: 35773dac5f86 ('usb: xhci: Link TRB must not occur within a USB payload burst') Cc: stable # 3.12 diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index f8ffc51..ad36439 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4730,8 +4730,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) struct device *dev = hcd->self.controller; int retval; - /* Accept arbitrarily long scatter-gather lists */ - hcd->self.sg_tablesize = ~0; + /* Limit the block layer scatter-gather lists to half a segment. */ + hcd->self.sg_tablesize = TRBS_PER_SEGMENT / 2; /* support to build packet from discontinuous buffers */ hcd->self.no_sg_constraint = 1; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 24344aab..f8416639 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1279,7 +1279,7 @@ union xhci_trb { * since the command ring is 64-byte aligned. * It must also be greater than 16. */ -#define TRBS_PER_SEGMENT 64 +#define TRBS_PER_SEGMENT 256 /* Allow two commands + a link TRB, along with any reserved command TRBs */ #define MAX_RSVD_CMD_TRBS (TRBS_PER_SEGMENT - 3) #define TRB_SEGMENT_SIZE (TRBS_PER_SEGMENT*16) -- cgit v0.10.2 From ac5166bcdb43889a5bd837f5076b78049e1f8bca Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 8 Jan 2014 13:45:51 -0800 Subject: Revert "usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28" This reverts commit 30666249eae3b04875d514dea557d1ab1468c006, as it depended on a previous patch that I rejected, causing a build error here. Sorry about that. Reported-by: kbuild test robot Cc: Peter Chen Cc: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index c00f772..bb5d976 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -23,26 +23,6 @@ #include "ci.h" #include "ci_hdrc_imx.h" -#define CI_HDRC_IMX_IMX28_WRITE_FIX BIT(0) - -struct ci_hdrc_imx_platform_flag { - unsigned int flags; -}; - -static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { -}; - -static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { - .flags = CI_HDRC_IMX_IMX28_WRITE_FIX, -}; - -static const struct of_device_id ci_hdrc_imx_dt_ids[] = { - { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, - { .compatible = "fsl,imx27-usb", .data = &imx27_usb_data}, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); - struct ci_hdrc_imx_data { struct usb_phy *phy; struct platform_device *ci_pdev; @@ -102,9 +82,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) CI_HDRC_DISABLE_STREAMING, }; int ret; - const struct of_device_id *of_id = - of_match_device(ci_hdrc_imx_dt_ids, &pdev->dev); - const struct ci_hdrc_imx_platform_flag *imx_platform_flag = of_id->data; data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) { @@ -138,9 +115,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) pdata.phy = data->phy; - if (imx_platform_flag->flags & CI_HDRC_IMX_IMX28_WRITE_FIX) - pdata.flags |= CI_HDRC_IMX28_WRITE_FIX; - ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (ret) goto err_clk; @@ -199,6 +173,12 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id ci_hdrc_imx_dt_ids[] = { + { .compatible = "fsl,imx27-usb", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); + static struct platform_driver ci_hdrc_imx_driver = { .probe = ci_hdrc_imx_probe, .remove = ci_hdrc_imx_remove, -- cgit v0.10.2 From 08d1dec6f4054e3613f32051d9b149d4203ce0d2 Mon Sep 17 00:00:00 2001 From: Shen Guang Date: Wed, 8 Jan 2014 14:45:42 +0800 Subject: usb:hub set hub->change_bits when over-current happens When we are doing compliance test with xHCI, we found that if we enable CONFIG_USB_SUSPEND and plug in a bad device which causes over-current condition to the root port, software will not be noticed. The reason is that current code don't set hub->change_bits in hub_activate() when over-current happens, and then hub_events() will not check the port status because it thinks nothing changed. If CONFIG_USB_SUSPEND is disabled, the interrupt pipe of the hub will report the change and set hub->event_bits, and then hub_events() will check what events happened.In this case over-current can be detected. Signed-off-by: Shen Guang Acked-by: Alan Stern Acked-by: Sarah Sharp Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index c1422a0..babba88 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1147,7 +1147,8 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* Tell khubd to disconnect the device or * check for a new connection */ - if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) + if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || + (portstatus & USB_PORT_STAT_OVERCURRENT)) set_bit(port1, hub->change_bits); } else if (portstatus & USB_PORT_STAT_ENABLE) { -- cgit v0.10.2 From 803a536243b3a1ed2289f41897b11b72bd083309 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 8 Jan 2014 11:08:26 -0500 Subject: usb: delete non-required instances of include None of these files are actually using any __init type directives and hence don't need to include . Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 8a7eb77..813d4d3 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 69461d6..0dc8c06 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index defff43..5a45937 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -57,7 +57,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index d4c47d5..0924ee4 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -52,7 +52,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 09de131..cfbec9c 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -21,7 +21,6 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include #include #include #include diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 548d199..8d72f0c 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -3,7 +3,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 854a419..f829a1a 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 172d269..9ff665f 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -2,7 +2,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index a04aa8b..41b062e 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -40,7 +40,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index c3f49fd..cea8c20 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c index 2ac7a8f..888fbb4 100644 --- a/drivers/usb/gadget/bcm63xx_udc.c +++ b/drivers/usb/gadget/bcm63xx_udc.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 358de32..0567cca 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -11,7 +11,6 @@ #include #include -#include #include #include diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index f60d4da..ad54833 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -22,7 +22,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index f66f3a7..6c85839 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/gr_udc.c b/drivers/usb/gadget/gr_udc.c index 483d5a8..914cbd8 100644 --- a/drivers/usb/gadget/gr_udc.c +++ b/drivers/usb/gadget/gr_udc.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index 9fe31d7..d2ca59e 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index d43ce95..fcff3a5 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 34bd713..2ae4f6d 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 33b09a7..9984437 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index 1ffbdb4..d822d82 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c index 1f49fce..73a4dfb 100644 --- a/drivers/usb/gadget/usbstring.c +++ b/drivers/usb/gadget/usbstring.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index f0b97bb..e076699 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -54,7 +54,6 @@ * DWA). */ #include -#include #include #include #include diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 2740f65..240e792 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -60,7 +60,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 34645ae..875bcfd 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -67,7 +67,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index 9c44093..bb40958 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -27,7 +27,6 @@ /*#include #include #include -#include #include #include */ #include diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index 778eeaf..e07248b 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -29,7 +29,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index dfbdd3a..00661d3 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -12,7 +12,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 47b1322..c6c325e 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 0115e7f..a517151 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -39,7 +39,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 469564e..88a9bff 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -12,7 +12,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c index 6aae700..0c086b2 100644 --- a/drivers/usb/host/whci/int.c +++ b/drivers/usb/host/whci/int.c @@ -16,7 +16,6 @@ * along with this program. If not, see . */ #include -#include #include #include "../../wusbcore/wusbhc.h" diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c index f24efde..8d27626 100644 --- a/drivers/usb/host/whci/wusb.c +++ b/drivers/usb/host/whci/wusb.c @@ -16,7 +16,6 @@ * along with this program. If not, see . */ #include -#include #include #include "../../wusbcore/wusbhc.h" diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c index 9c0f8ca..37b44b0 100644 --- a/drivers/usb/image/microtek.c +++ b/drivers/usb/image/microtek.c @@ -125,7 +125,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index 3eaa83f..493c7f2 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -22,7 +22,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c index 3f7c1a9..402b94d 100644 --- a/drivers/usb/misc/cypress_cy7c63.c +++ b/drivers/usb/misc/cypress_cy7c63.c @@ -29,7 +29,6 @@ * published by the Free Software Foundation, version 2. */ -#include #include #include #include diff --git a/drivers/usb/misc/cytherm.c b/drivers/usb/misc/cytherm.c index 5b9831b..9bab1a3 100644 --- a/drivers/usb/misc/cytherm.c +++ b/drivers/usb/misc/cytherm.c @@ -16,7 +16,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/emi26.c b/drivers/usb/misc/emi26.c index d65984d..8950fa5 100644 --- a/drivers/usb/misc/emi26.c +++ b/drivers/usb/misc/emi26.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c index ae794b9..1d9be44 100644 --- a/drivers/usb/misc/emi62.c +++ b/drivers/usb/misc/emi62.c @@ -10,7 +10,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c index e712afe..947811b 100644 --- a/drivers/usb/misc/ezusb.c +++ b/drivers/usb/misc/ezusb.c @@ -9,7 +9,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index 49235bd..4e38683c 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 367725c..20bcfdd 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -15,7 +15,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index b1d5953..82503a7 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -24,7 +24,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index eb37c95..97cd9e2 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -79,7 +79,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c index b9b356a..13731d5 100644 --- a/drivers/usb/misc/rio500.c +++ b/drivers/usb/misc/rio500.c @@ -36,7 +36,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.c b/drivers/usb/misc/sisusbvga/sisusb_init.c index cb8a3d9..bf0032c 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_init.c +++ b/drivers/usb/misc/sisusbvga/sisusb_init.c @@ -40,7 +40,6 @@ #include #include #include -#include #include #include "sisusb.h" diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c index 741efed..4145314 100644 --- a/drivers/usb/misc/trancevibrator.c +++ b/drivers/usb/misc/trancevibrator.c @@ -21,7 +21,6 @@ /* Standard include files */ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 89927bc..1184390 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -14,7 +14,6 @@ *****************************************************************************/ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c index 12d03e7..78eb4ff 100644 --- a/drivers/usb/misc/usbled.c +++ b/drivers/usb/misc/usbled.c @@ -11,7 +11,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c index 0a87d3e..1fe6b73 100644 --- a/drivers/usb/misc/usbsevseg.c +++ b/drivers/usb/misc/usbsevseg.c @@ -12,7 +12,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 0609114..2427820 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -11,7 +11,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index ca45b39..b3aa018 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -26,7 +26,6 @@ * */ -#include #include #include #include diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index ef023b9..796677f 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 2f2c1cb..e3486de 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -26,7 +26,6 @@ * */ -#include #include #include #include diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 1121fd7..c259dac 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/musb/musb_am335x.c b/drivers/usb/musb/musb_am335x.c index 8be9b02..d235378 100644 --- a/drivers/usb/musb/musb_am335x.c +++ b/drivers/usb/musb/musb_am335x.c @@ -1,4 +1,3 @@ -#include #include #include #include diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 091eab5..fc192ad 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -93,7 +93,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 593d3c9..7a109ea 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -29,7 +29,6 @@ * da8xx.c would be merged to this file after testing. */ -#include #include #include #include diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 0e30dc2..ed45572 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -39,7 +39,6 @@ #include #include #include -#include #include #include diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 966cf95..eb63443 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -36,7 +36,6 @@ #include #include #include -#include #include #include diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 4432314..4e9fb1d 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c index b8794eb..e33b6b2 100644 --- a/drivers/usb/musb/tusb6010_omap.c +++ b/drivers/usb/musb/tusb6010_omap.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index 122446b..c2e45e6 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -21,7 +21,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index 62d5af2..2b0f968 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c index 44f316e..7d80c54 100644 --- a/drivers/usb/phy/phy-mv-usb.c +++ b/drivers/usb/phy/phy-mv-usb.c @@ -11,7 +11,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 9d90926..1532cde 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -23,7 +23,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index 336a105..15bc718 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -25,7 +25,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 65a81c6..82371f6 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -16,7 +16,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index b5b8dcb..8d7fc48 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -14,7 +14,6 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include -#include #include #include #include diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 1a71363..0ac3b3b 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -30,7 +30,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 763d1c5..bccb122 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -27,7 +27,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 19b467f..8a23c53 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -17,7 +17,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index 0f65861..90e603d 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -17,7 +17,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 1e012fb..c5dc233 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -12,7 +12,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 5057201..ce0d7b0 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -33,7 +33,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index fac8f09..db591d1 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -25,7 +25,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 0dd8cce..c086697 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index a673f4b..a2db5be 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 3754bc3..f51a5d5 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -12,7 +12,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index 155eab1..8b1cf18 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -38,7 +38,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index fa0c3c1..d00dae1 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -17,7 +17,6 @@ */ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index b0f6f5ed..265c677 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -31,7 +31,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 5f1d382e..e972412 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -17,7 +17,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 4f441c2..c88cc49 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -37,7 +37,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index 78b48c3..d8d164b 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -25,7 +25,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 6a15adf..fd707d6 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -23,7 +23,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 6df2e44..39e6830 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -7,7 +7,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 5646fa5..4eb2772 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -22,7 +22,6 @@ */ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 2496e71..e9d967f 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -24,7 +24,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c index 17e4f40..ab1d690 100644 --- a/drivers/usb/serial/mxuport.c +++ b/drivers/usb/serial/mxuport.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c index 38725fc..2a97cdc 100644 --- a/drivers/usb/serial/navman.c +++ b/drivers/usb/serial/navman.c @@ -14,7 +14,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 5739bf6..f6c6900 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -13,7 +13,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index e403bda..4856fb7 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -12,7 +12,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 95a79b4..a4b88bc 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -39,7 +39,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index abee318..2e22fc2 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -16,7 +16,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c index 0a5883f..6e9f8af 100644 --- a/drivers/usb/serial/qcaux.c +++ b/drivers/usb/serial/qcaux.c @@ -16,7 +16,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index cb51dd7..7725ed2 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -15,7 +15,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index d0e602a..b2dff0f 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -67,7 +67,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 5b793c3..4ec04f7 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -16,7 +16,6 @@ */ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index a6fec95..a7fe664 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -6,7 +6,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index 9b16489..9fa7dd4 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -11,7 +11,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 698dc14..ec7cea5 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c index 52eb91f..f112b07 100644 --- a/drivers/usb/serial/usb-serial-simple.c +++ b/drivers/usb/serial/usb-serial-simple.c @@ -15,7 +15,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c index 5760f97..ca2fa5b 100644 --- a/drivers/usb/serial/usb_debug.c +++ b/drivers/usb/serial/usb_debug.c @@ -10,7 +10,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index d938785..bf2bd40 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -16,7 +16,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 1d9d700..e62f2df 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -18,7 +18,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/serial/wishbone-serial.c b/drivers/usb/serial/wishbone-serial.c index 100573c..4fed4a0 100644 --- a/drivers/usb/serial/wishbone-serial.c +++ b/drivers/usb/serial/wishbone-serial.c @@ -11,7 +11,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/xsens_mt.c b/drivers/usb/serial/xsens_mt.c index 1d5798d..4841fb5 100644 --- a/drivers/usb/serial/xsens_mt.c +++ b/drivers/usb/serial/xsens_mt.c @@ -9,7 +9,6 @@ */ #include -#include #include #include #include diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c index 288d265..e40ab73 100644 --- a/drivers/usb/serial/zte_ev.c +++ b/drivers/usb/serial/zte_ev.c @@ -13,7 +13,6 @@ * show the commands used to talk to the device, but I am not sure. */ #include -#include #include #include #include diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 2696489..74e2aa2 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -30,7 +30,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 5c4fe07..1c0b89f 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -53,7 +53,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index ff97652..545d09b 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -14,7 +14,6 @@ #include #include -#include #include #include #include diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index 4f80f7c..6ca80a4 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -57,7 +57,6 @@ * urb->dev->devnum, to make sure that we always have the right * destination address. */ -#include #include #include #include diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 2afa886..3cd96e9 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -79,7 +79,6 @@ * availability of the different required components (blocks, * rpipes, segment slots, etc), we go scheduling them. Painful. */ -#include #include #include #include -- cgit v0.10.2 From f3c1f5151a90f70b3dfbcfc3827c42b35499ae27 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Wed, 8 Jan 2014 22:00:45 +0530 Subject: USB: c67x00: correct spelling mistakes in comments Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/c67x00/c67x00-hcd.h b/drivers/usb/c67x00/c67x00-hcd.h index e3d493d..cf8a455 100644 --- a/drivers/usb/c67x00/c67x00-hcd.h +++ b/drivers/usb/c67x00/c67x00-hcd.h @@ -45,7 +45,7 @@ /* * The current implementation switches between _STD (default) and _ISO (when * isochronous transfers are scheduled), in order to optimize the throughput - * in normal cicrumstances, but also provide good isochronous behaviour. + * in normal circumstances, but also provide good isochronous behaviour. * * Bandwidth is described in bit time so with a 12MHz USB clock and 1ms * frames; there are 12000 bit times per frame. diff --git a/drivers/usb/c67x00/c67x00-ll-hpi.c b/drivers/usb/c67x00/c67x00-ll-hpi.c index cd2c6ed..b581518 100644 --- a/drivers/usb/c67x00/c67x00-ll-hpi.c +++ b/drivers/usb/c67x00/c67x00-ll-hpi.c @@ -63,8 +63,8 @@ struct c67x00_lcp_int_data { * HPI implementation * * The c67x00 chip also support control via SPI or HSS serial - * interfaces. However, this driver assumes that register access can - * be performed from IRQ context. While this is a safe assuption with + * interfaces. However, this driver assumes that register access can + * be performed from IRQ context. While this is a safe assumption with * the HPI interface, it is not true for the serial interfaces. */ -- cgit v0.10.2 From 3569843a2b10a7f2163595fa2d499291147f7e94 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Wed, 8 Jan 2014 22:02:44 +0530 Subject: USB: image: correct spelling mistake in comment Signed-off-by: Rahul Bedarkar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c index 7121b50..a62865a 100644 --- a/drivers/usb/image/mdc800.c +++ b/drivers/usb/image/mdc800.c @@ -51,7 +51,7 @@ * * version 0.7.3 * bugfix : The mdc800->state field gets set to READY after the - * the diconnect function sets it to NOT_CONNECTED. This makes the + * the disconnect function sets it to NOT_CONNECTED. This makes the * driver running like the camera is connected and causes some * hang ups. * -- cgit v0.10.2 From c63fe8f6ca3669f1d120ff70523e2911b9966574 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 10 Jan 2014 19:36:41 +0100 Subject: usb: core: add sanity checks when using bInterfaceClass with new_id Check if that field is actually used and if so, bail out if it exeeds a u8. Make it also future-proof by not requiring "exactly three" parameters in new_id, but simply "more than two". Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 8d989b1..574f5a0 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -60,7 +60,10 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, dynid->id.idVendor = idVendor; dynid->id.idProduct = idProduct; dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE; - if (fields == 3) { + if (fields > 2 && bInterfaceClass) { + if (bInterfaceClass > 255) + return -EINVAL; + dynid->id.bInterfaceClass = (u8)bInterfaceClass; dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS; } -- cgit v0.10.2 From 2fc82c2de604deabb86b0558be0a301bb2209a19 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 10 Jan 2014 19:36:42 +0100 Subject: usb: core: allow a reference device for new_id Often, usb drivers need some driver_info to get a device to work. To have access to driver_info when using new_id, allow to pass a reference vendor:product tuple from which new_id will inherit driver_info. Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index 1430f584b..614d451 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -50,13 +50,19 @@ Description: This may allow the driver to support more hardware than was included in the driver's static device ID support table at compile time. The format for the device ID is: - idVendor idProduct bInterfaceClass. + idVendor idProduct bInterfaceClass RefIdVendor RefIdProduct The vendor ID and device ID fields are required, the - interface class is optional. + rest is optional. The Ref* tuple can be used to tell the + driver to use the same driver_data for the new device as + it is used for the reference device. Upon successfully adding an ID, the driver will probe for the device and attempt to bind to it. For example: # echo "8086 10f5" > /sys/bus/usb/drivers/foo/new_id + Here add a new device (0458:7045) using driver_data from + an already supported device (0458:704c): + # echo "0458 7045 0 0458 704c" > /sys/bus/usb/drivers/foo/new_id + Reading from this file will list all dynamically added device IDs in the same format, with one entry per line. For example: diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 574f5a0..9b29e5c 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -37,6 +37,7 @@ * and cause the driver to probe for all devices again. */ ssize_t usb_store_new_id(struct usb_dynids *dynids, + const struct usb_device_id *id_table, struct device_driver *driver, const char *buf, size_t count) { @@ -44,11 +45,12 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, u32 idVendor = 0; u32 idProduct = 0; unsigned int bInterfaceClass = 0; + u32 refVendor, refProduct; int fields = 0; int retval = 0; - fields = sscanf(buf, "%x %x %x", &idVendor, &idProduct, - &bInterfaceClass); + fields = sscanf(buf, "%x %x %x %x %x", &idVendor, &idProduct, + &bInterfaceClass, &refVendor, &refProduct); if (fields < 2) return -EINVAL; @@ -68,6 +70,16 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS; } + if (fields > 4) { + const struct usb_device_id *id = id_table; + + for (; id->match_flags; id++) + if (id->idVendor == refVendor && id->idProduct == refProduct) { + dynid->id.driver_info = id->driver_info; + break; + } + } + spin_lock(&dynids->lock); list_add_tail(&dynid->node, &dynids->list); spin_unlock(&dynids->lock); @@ -109,7 +121,7 @@ static ssize_t new_id_store(struct device_driver *driver, { struct usb_driver *usb_drv = to_usb_driver(driver); - return usb_store_new_id(&usb_drv->dynids, driver, buf, count); + return usb_store_new_id(&usb_drv->dynids, usb_drv->id_table, driver, buf, count); } static DRIVER_ATTR_RW(new_id); diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index 6335490..35a2373 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -125,10 +125,12 @@ static ssize_t new_id_store(struct device_driver *driver, const char *buf, size_t count) { struct usb_serial_driver *usb_drv = to_usb_serial_driver(driver); - ssize_t retval = usb_store_new_id(&usb_drv->dynids, driver, buf, count); + ssize_t retval = usb_store_new_id(&usb_drv->dynids, usb_drv->id_table, + driver, buf, count); if (retval >= 0 && usb_drv->usb_driver != NULL) retval = usb_store_new_id(&usb_drv->usb_driver->dynids, + usb_drv->usb_driver->id_table, &usb_drv->usb_driver->drvwrap.driver, buf, count); return retval; diff --git a/include/linux/usb.h b/include/linux/usb.h index 512ab16..c716da1 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -965,6 +965,7 @@ struct usb_dynid { }; extern ssize_t usb_store_new_id(struct usb_dynids *dynids, + const struct usb_device_id *id_table, struct device_driver *driver, const char *buf, size_t count); -- cgit v0.10.2 From 52a6966c350624db89addc3e6a825f5e797a73e4 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 12 Jan 2014 10:07:50 +0100 Subject: usb: core: bail out if user gives an unknown RefId when using new_id If users use the new RefId feature of new_id, give them an error message if they provided an unknown reference. That helps detecting typos. Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 9b29e5c..620a0ba 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -74,10 +74,13 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, const struct usb_device_id *id = id_table; for (; id->match_flags; id++) - if (id->idVendor == refVendor && id->idProduct == refProduct) { - dynid->id.driver_info = id->driver_info; + if (id->idVendor == refVendor && id->idProduct == refProduct) break; - } + + if (id->match_flags) + dynid->id.driver_info = id->driver_info; + else + return -ENODEV; } spin_lock(&dynids->lock); -- cgit v0.10.2 From f563926fed982f26b391ca42493f55f2447f1b0a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Sun, 12 Jan 2014 21:48:53 +0100 Subject: usb: cdc-wdm: resp_count can be 0 even if WDM_READ is set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Do not decrement resp_count if it's already 0. We set resp_count to 0 when the device is closed. The next open and read will try to clear the WDM_READ flag if there was leftover data in the read buffer. This fix is necessary to prevent resubmitting the read URB in a tight loop because resp_count becomes negative. The bug can easily be triggered from userspace by not reading all data in the read buffer, and then closing and reopening the chardev. Fixes: 8dd5cd5395b9 ("usb: cdc-wdm: avoid hanging on zero length reads") Cc: # 3.13 Signed-off-by: Bjørn Mork Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 590ff8b..a051a7a 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -445,7 +445,7 @@ static int clear_wdm_read_flag(struct wdm_device *desc) clear_bit(WDM_READ, &desc->flags); /* submit read urb only if the device is waiting for it */ - if (!--desc->resp_count) + if (!desc->resp_count || !--desc->resp_count) goto out; set_bit(WDM_RESPONDING, &desc->flags); -- cgit v0.10.2 From 1b9fb31f7db7882d475bdc8b335403e8eaabf1ef Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 13 Jan 2014 11:29:23 +0100 Subject: usb: core: check for valid id_table when using the RefId feature When implementing the RefId feature, it was missed that id_tables can be NULL under special circumstances. Bail out in that case. Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 620a0ba..5d01558 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -73,6 +73,9 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, if (fields > 4) { const struct usb_device_id *id = id_table; + if (!id) + return -ENODEV; + for (; id->match_flags; id++) if (id->idVendor == refVendor && id->idProduct == refProduct) break; -- cgit v0.10.2 From feffe09f510c475df082546815f9e4a573f6a233 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 10 Jan 2014 13:51:26 +0800 Subject: usb: ehci: add freescale imx28 special write register method According to Freescale imx28 Errata, "ENGR119653 USB: ARM to USB register error issue", All USB register write operations must use the ARM SWP instruction. So, we implement a special ehci_write for imx28. Discussion for it at below: http://marc.info/?l=linux-usb&m=137996395529294&w=2 Without this patcheset, imx28 works unstable at high AHB bus loading. If the bus loading is not high, the imx28 usb can work well at the most of time. There is a IC errata for this problem, usually, we consider IC errata is a problem not a new feature, and this workaround is needed for that, so we need to add them to stable tree 3.11+. Cc: stable@vger.kernel.org Cc: robert.hodaszi@digi.com Signed-off-by: Peter Chen Acked-by: Alan Stern Signed-off-by: Marc Kleine-Budde Tested-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index c35a6e2b..9dfc6c1 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -225,6 +225,7 @@ struct ehci_hcd { /* one per controller */ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */ unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ unsigned need_oc_pp_cycle:1; /* MPC834X port power */ + unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) @@ -728,6 +729,18 @@ static inline unsigned int ehci_readl(const struct ehci_hcd *ehci, #endif } +#ifdef CONFIG_SOC_IMX28 +static inline void imx28_ehci_writel(const unsigned int val, + volatile __u32 __iomem *addr) +{ + __asm__ ("swp %0, %0, [%1]" : : "r"(val), "r"(addr)); +} +#else +static inline void imx28_ehci_writel(const unsigned int val, + volatile __u32 __iomem *addr) +{ +} +#endif static inline void ehci_writel(const struct ehci_hcd *ehci, const unsigned int val, __u32 __iomem *regs) { @@ -736,7 +749,10 @@ static inline void ehci_writel(const struct ehci_hcd *ehci, writel_be(val, regs) : writel(val, regs); #else - writel(val, regs); + if (ehci->imx28_write_fix) + imx28_ehci_writel(val, regs); + else + writel(val, regs); #endif } -- cgit v0.10.2 From ed8f8318d2ef3e5f9e4ddf79349508c116b68d7f Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 10 Jan 2014 13:51:27 +0800 Subject: usb: chipidea: add freescale imx28 special write register method According to Freescale imx28 Errata, "ENGR119653 USB: ARM to USB register error issue", All USB register write operations must use the ARM SWP instruction. So, we implement special hw_write and hw_test_and_clear for imx28. Discussion for it at below: http://marc.info/?l=linux-usb&m=137996395529294&w=2 This patch is needed for stable tree 3.11+. Cc: stable@vger.kernel.org Cc: robert.hodaszi@digi.com Signed-off-by: Peter Chen Signed-off-by: Marc Kleine-Budde Tested-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index a71dc1c..88b80f7 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -164,6 +164,7 @@ struct hw_bank { * @id_event: indicates there is an id event, and handled at ci_otg_work * @b_sess_valid_event: indicates there is a vbus event, and handled * at ci_otg_work + * @imx28_write_fix: Freescale imx28 needs swp instruction for writing */ struct ci_hdrc { struct device *dev; @@ -202,6 +203,7 @@ struct ci_hdrc { struct dentry *debugfs; bool id_event; bool b_sess_valid_event; + bool imx28_write_fix; }; static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci) @@ -250,6 +252,26 @@ static inline u32 hw_read(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask) return ioread32(ci->hw_bank.regmap[reg]) & mask; } +#ifdef CONFIG_SOC_IMX28 +static inline void imx28_ci_writel(u32 val, volatile void __iomem *addr) +{ + __asm__ ("swp %0, %0, [%1]" : : "r"(val), "r"(addr)); +} +#else +static inline void imx28_ci_writel(u32 val, volatile void __iomem *addr) +{ +} +#endif + +static inline void __hw_write(struct ci_hdrc *ci, u32 val, + void __iomem *addr) +{ + if (ci->imx28_write_fix) + imx28_ci_writel(val, addr); + else + iowrite32(val, addr); +} + /** * hw_write: writes to a hw register * @reg: register index @@ -263,7 +285,7 @@ static inline void hw_write(struct ci_hdrc *ci, enum ci_hw_regs reg, data = (ioread32(ci->hw_bank.regmap[reg]) & ~mask) | (data & mask); - iowrite32(data, ci->hw_bank.regmap[reg]); + __hw_write(ci, data, ci->hw_bank.regmap[reg]); } /** @@ -278,7 +300,7 @@ static inline u32 hw_test_and_clear(struct ci_hdrc *ci, enum ci_hw_regs reg, { u32 val = ioread32(ci->hw_bank.regmap[reg]) & mask; - iowrite32(val, ci->hw_bank.regmap[reg]); + __hw_write(ci, val, ci->hw_bank.regmap[reg]); return val; } diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 458d8e4..0ead0b4 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -548,6 +548,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) ci->dev = dev; ci->platdata = dev->platform_data; + ci->imx28_write_fix = !!(ci->platdata->flags & + CI_HDRC_IMX28_WRITE_FIX); ret = hw_device_init(ci, base); if (ret < 0) { diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 526cd77..a8ac6c1 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -65,6 +65,7 @@ static int host_start(struct ci_hdrc *ci) ehci->caps = ci->hw_bank.cap; ehci->has_hostpc = ci->hw_bank.lpm; ehci->has_tdi_phy_lpm = ci->hw_bank.lpm; + ehci->imx28_write_fix = ci->imx28_write_fix; if (ci->platdata->reg_vbus) { ret = regulator_enable(ci->platdata->reg_vbus); diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index 7d39967..708bd11 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -24,6 +24,7 @@ struct ci_hdrc_platform_data { * but otg is not supported (no register otgsc). */ #define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) +#define CI_HDRC_IMX28_WRITE_FIX BIT(5) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 -- cgit v0.10.2 From 1071055e2a118a81c0b300d7f4af7eba3f7a7c82 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 10 Jan 2014 13:51:28 +0800 Subject: usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28 Due to imx28 needs ARM swp instruction for writing, we set CI_HDRC_IMX28_WRITE_FIX for imx28. This patch is needed for stable tree 3.11+ Cc: stable@vger.kernel.org Cc: robert.hodaszi@digi.com Signed-off-by: Peter Chen Signed-off-by: Marc Kleine-Budde Tested-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index bb5d976..c00f772 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -23,6 +23,26 @@ #include "ci.h" #include "ci_hdrc_imx.h" +#define CI_HDRC_IMX_IMX28_WRITE_FIX BIT(0) + +struct ci_hdrc_imx_platform_flag { + unsigned int flags; +}; + +static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { +}; + +static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { + .flags = CI_HDRC_IMX_IMX28_WRITE_FIX, +}; + +static const struct of_device_id ci_hdrc_imx_dt_ids[] = { + { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, + { .compatible = "fsl,imx27-usb", .data = &imx27_usb_data}, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); + struct ci_hdrc_imx_data { struct usb_phy *phy; struct platform_device *ci_pdev; @@ -82,6 +102,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) CI_HDRC_DISABLE_STREAMING, }; int ret; + const struct of_device_id *of_id = + of_match_device(ci_hdrc_imx_dt_ids, &pdev->dev); + const struct ci_hdrc_imx_platform_flag *imx_platform_flag = of_id->data; data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) { @@ -115,6 +138,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) pdata.phy = data->phy; + if (imx_platform_flag->flags & CI_HDRC_IMX_IMX28_WRITE_FIX) + pdata.flags |= CI_HDRC_IMX28_WRITE_FIX; + ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (ret) goto err_clk; @@ -173,12 +199,6 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id ci_hdrc_imx_dt_ids[] = { - { .compatible = "fsl,imx27-usb", }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); - static struct platform_driver ci_hdrc_imx_driver = { .probe = ci_hdrc_imx_probe, .remove = ci_hdrc_imx_remove, -- cgit v0.10.2 From 3b5d3e6845bfe68777d069886b0d1cd5f23b9d58 Mon Sep 17 00:00:00 2001 From: Chris Ruehl Date: Fri, 10 Jan 2014 13:51:29 +0800 Subject: usb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag * init the sts flag to 0 (missed) * fix write the real bit not sts value * Set PORTCS_STS and DEVLC_STS only if sts = 1 [Peter Chen: This one and the next patch fix the problem occurred imx27 and imx31, and imx27 and imx31 usb support are enabled until 3.14, so these two patches isn't needed for -stable] Signed-off-by: Chris Ruehl Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 0ead0b4..edeec36 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -236,7 +236,7 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base) static void hw_phymode_configure(struct ci_hdrc *ci) { - u32 portsc, lpm, sts; + u32 portsc, lpm, sts = 0; switch (ci->platdata->phy_mode) { case USBPHY_INTERFACE_MODE_UTMI: @@ -266,10 +266,12 @@ static void hw_phymode_configure(struct ci_hdrc *ci) if (ci->hw_bank.lpm) { hw_write(ci, OP_DEVLC, DEVLC_PTS(7) | DEVLC_PTW, lpm); - hw_write(ci, OP_DEVLC, DEVLC_STS, sts); + if (sts) + hw_write(ci, OP_DEVLC, DEVLC_STS, DEVLC_STS); } else { hw_write(ci, OP_PORTSC, PORTSC_PTS(7) | PORTSC_PTW, portsc); - hw_write(ci, OP_PORTSC, PORTSC_STS, sts); + if (sts) + hw_write(ci, OP_PORTSC, PORTSC_STS, PORTSC_STS); } } -- cgit v0.10.2 From cd0b42c2a6d2a74244f0053f8960f5dad5842278 Mon Sep 17 00:00:00 2001 From: Chris Ruehl Date: Fri, 10 Jan 2014 13:51:30 +0800 Subject: usb: chipidea: put hw_phymode_configure before ci_usb_phy_init hw_phymode_configure configures the PORTSC registers and allow the following phy_inits to operate on the right parameters. This fix a problem where the UPLI (ISP1504) could not be detected, because the Viewport was not available and read the viewport return 0's only. Signed-off-by: Chris Ruehl Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index edeec36..33f22bc 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -559,6 +559,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) return -ENODEV; } + hw_phymode_configure(ci); + ret = ci_usb_phy_init(ci); if (ret) { dev_err(dev, "unable to init phy: %d\n", ret); @@ -576,8 +578,6 @@ static int ci_hdrc_probe(struct platform_device *pdev) ci_get_otg_capable(ci); - hw_phymode_configure(ci); - dr_mode = ci->platdata->dr_mode; /* initialize role(s) before the interrupt is requested */ if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) { -- cgit v0.10.2 From 5332ff1fb63c46588656e4208201bc131627c878 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 10 Jan 2014 13:51:31 +0800 Subject: usb: chipidea: need to mask INT_STATUS when write otgsc For otgsc, both enable bits and status bits are in it. So we need to make sure the status bits are not be cleared when write enable bits. It can fix one bug that we plug in/out Micro AB cable fast, and sometimes, the IDIS will be cleared wrongly when handle last ID interrupt (ID 0->1), so the current interrupt will not occur. For stable tree: 3.12+ Cc: stable@vger.kernel.org Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h index 2d9f090..449bee0 100644 --- a/drivers/usb/chipidea/otg.h +++ b/drivers/usb/chipidea/otg.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Freescale Semiconductor, Inc. + * Copyright (C) 2013-2014 Freescale Semiconductor, Inc. * * Author: Peter Chen * @@ -19,12 +19,12 @@ static inline void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits) static inline void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits) { - hw_write(ci, OP_OTGSC, bits, bits); + hw_write(ci, OP_OTGSC, bits | OTGSC_INT_STATUS_BITS, bits); } static inline void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits) { - hw_write(ci, OP_OTGSC, bits, 0); + hw_write(ci, OP_OTGSC, bits | OTGSC_INT_STATUS_BITS, 0); } int ci_hdrc_otg_init(struct ci_hdrc *ci); -- cgit v0.10.2 From 2fc5a7dace3c43e62402ab4e8800a8f1834ffe2a Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 10 Jan 2014 13:51:32 +0800 Subject: usb: chipidea: udc: using MultO at TD as real mult value for ISO-TX We have met a bug that the high bandwidth ISO-TX transfer has failed at the last packet if it is less than 1024, the TD status shows it is "Transaction Error". The root cause of this problem is: the mult value at qh is not correct for current TD's transfer length. We use TD list to queue un-transfer TDs, and change mult for new adding TDs. If new adding TDs transfer length less than 1024, but the queued un-transfer TDs transfer length is larger than 1024, the transfer error will occur, and vice versa. Usually, this problem occurs at the last packet, and the first packet for new frame. We fixed this problem by setting Mult at QH as the largest value (3), and set MultO (Multiplier Override) at TD according to every transfer length. It can cover both hardware version less than 2.3 (the real mult is MultO if it is not 0) and 2.3+ (the real mult is min(qh.mult, td.multo)). Since the MultO bits are only existed at TX TD, we keep the ISO-RX behavior unchanged. For stable tree: 3.11+. Cc: stable Cc: Michael Grzeschik Reported-by: Matthieu Vanin Tested-by: Matthieu Vanin Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 73a39ef..80de2f8 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -393,6 +393,14 @@ static int add_td_to_list(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, node->ptr->token = cpu_to_le32(length << __ffs(TD_TOTAL_BYTES)); node->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES); node->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE); + if (hwep->type == USB_ENDPOINT_XFER_ISOC && hwep->dir == TX) { + u32 mul = hwreq->req.length / hwep->ep.maxpacket; + + if (hwreq->req.length == 0 + || hwreq->req.length % hwep->ep.maxpacket) + mul++; + node->ptr->token |= mul << __ffs(TD_MULTO); + } temp = (u32) (hwreq->req.dma + hwreq->req.actual); if (length) { @@ -515,10 +523,11 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) hwep->qh.ptr->td.token &= cpu_to_le32(~(TD_STATUS_HALTED|TD_STATUS_ACTIVE)); - if (hwep->type == USB_ENDPOINT_XFER_ISOC) { + if (hwep->type == USB_ENDPOINT_XFER_ISOC && hwep->dir == RX) { u32 mul = hwreq->req.length / hwep->ep.maxpacket; - if (hwreq->req.length % hwep->ep.maxpacket) + if (hwreq->req.length == 0 + || hwreq->req.length % hwep->ep.maxpacket) mul++; hwep->qh.ptr->cap |= mul << __ffs(QH_MULT); } @@ -1173,6 +1182,12 @@ static int ep_enable(struct usb_ep *ep, if (hwep->num) cap |= QH_ZLT; cap |= (hwep->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT; + /* + * For ISO-TX, we set mult at QH as the largest value, and use + * MultO at TD as real mult value. + */ + if (hwep->type == USB_ENDPOINT_XFER_ISOC && hwep->dir == TX) + cap |= 3 << __ffs(QH_MULT); hwep->qh.ptr->cap = cpu_to_le32(cap); -- cgit v0.10.2