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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-25 17:31:14 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-25 17:31:14 (GMT) |
commit | 2d4d9f35bab1cad7f83d10864291d1e50b12c3f9 (patch) | |
tree | 24b5f23a1c98e29b8d2daad46133bfb261a8abae /drivers/usb/musb/musb_core.h | |
parent | 2193dda5eec60373c7a061c129c6ab9d658f78e9 (diff) | |
parent | ebf3992061db1f7b3aa093f37fb308acc74fbc82 (diff) | |
download | linux-2d4d9f35bab1cad7f83d10864291d1e50b12c3f9.tar.xz |
Merge tag 'usb-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.19 merge window
This time, a very pull request with 216 non-merge
commits. Most of the commits contained here are
sparse or coccinelle fixes ranging from missing
'static' to returning 0 in case of errors.
More importantly, we have the removal the now
unnecessary 'driver' argument to ->udc_stop().
DWC2 learned about Dual-Role builds. Users of
this IP can now have a single driver built for
host and device roles.
DWC3 got support for two new HW platforms: Exynos7
and AMD.
The Broadcom USB 3.0 Device Controller IP is now
supported and so is PLX USB338x, which means DWC3
has lost is badge as the only USB 3.0 peripheral
IP supported on Linux.
Thanks for Tony Lindgren's work, we can now have
a distro-like kernel where all MUSB glue layers
can be built into the same kernel (statically
or dynamically linked) and it'll work in PIO (DMA
will come probably on v3.20).
Other than these, the usual set of cleanups and
non-critical fixes.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/musb_core.h')
-rw-r--r-- | drivers/usb/musb/musb_core.h | 87 |
1 files changed, 45 insertions, 42 deletions
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 414e57a..5e65958 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -124,41 +124,6 @@ enum musb_g_ep0_state { #define OTG_TIME_A_AIDL_BDIS 200 /* min 200 msec */ #define OTG_TIME_B_ASE0_BRST 100 /* min 3.125 ms */ - -/*************************** REGISTER ACCESS ********************************/ - -/* Endpoint registers (other than dynfifo setup) can be accessed either - * directly with the "flat" model, or after setting up an index register. - */ - -#if defined(CONFIG_ARCH_DAVINCI) || defined(CONFIG_SOC_OMAP2430) \ - || defined(CONFIG_SOC_OMAP3430) || defined(CONFIG_BLACKFIN) \ - || defined(CONFIG_ARCH_OMAP4) -/* REVISIT indexed access seemed to - * misbehave (on DaVinci) for at least peripheral IN ... - */ -#define MUSB_FLAT_REG -#endif - -/* TUSB mapping: "flat" plus ep0 special cases */ -#if defined(CONFIG_USB_MUSB_TUSB6010) || \ - defined(CONFIG_USB_MUSB_TUSB6010_MODULE) -#define musb_ep_select(_mbase, _epnum) \ - musb_writeb((_mbase), MUSB_INDEX, (_epnum)) -#define MUSB_EP_OFFSET MUSB_TUSB_OFFSET - -/* "flat" mapping: each endpoint has its own i/o address */ -#elif defined(MUSB_FLAT_REG) -#define musb_ep_select(_mbase, _epnum) (((void)(_mbase)), ((void)(_epnum))) -#define MUSB_EP_OFFSET MUSB_FLAT_OFFSET - -/* "indexed" mapping: INDEX register controls register bank select */ -#else -#define musb_ep_select(_mbase, _epnum) \ - musb_writeb((_mbase), MUSB_INDEX, (_epnum)) -#define MUSB_EP_OFFSET MUSB_INDEXED_OFFSET -#endif - /****************************** FUNCTIONS ********************************/ #define MUSB_HST_MODE(_musb)\ @@ -173,8 +138,25 @@ enum musb_g_ep0_state { /******************************** TYPES *************************************/ +struct musb_io; + /** * struct musb_platform_ops - Operations passed to musb_core by HW glue layer + * @quirks: flags for platform specific quirks + * @enable: enable device + * @disable: disable device + * @ep_offset: returns the end point offset + * @ep_select: selects the specified end point + * @fifo_mode: sets the fifo mode + * @fifo_offset: returns the fifo offset + * @readb: read 8 bits + * @writeb: write 8 bits + * @readw: read 16 bits + * @writew: write 16 bits + * @readl: read 32 bits + * @writel: write 32 bits + * @read_fifo: reads the fifo + * @write_fifo: writes to fifo * @init: turns on clocks, sets up platform-specific registers, etc * @exit: undoes @init * @set_mode: forcefully changes operating mode @@ -184,12 +166,34 @@ enum musb_g_ep0_state { * @adjust_channel_params: pre check for standard dma channel_program func */ struct musb_platform_ops { + +#define MUSB_DMA_UX500 BIT(6) +#define MUSB_DMA_CPPI41 BIT(5) +#define MUSB_DMA_CPPI BIT(4) +#define MUSB_DMA_TUSB_OMAP BIT(3) +#define MUSB_DMA_INVENTRA BIT(2) +#define MUSB_IN_TUSB BIT(1) +#define MUSB_INDEXED_EP BIT(0) + u32 quirks; + int (*init)(struct musb *musb); int (*exit)(struct musb *musb); void (*enable)(struct musb *musb); void (*disable)(struct musb *musb); + u32 (*ep_offset)(u8 epnum, u16 offset); + void (*ep_select)(void __iomem *mbase, u8 epnum); + u16 fifo_mode; + u32 (*fifo_offset)(u8 epnum); + u8 (*readb)(const void __iomem *addr, unsigned offset); + void (*writeb)(void __iomem *addr, unsigned offset, u8 data); + u16 (*readw)(const void __iomem *addr, unsigned offset); + void (*writew)(void __iomem *addr, unsigned offset, u16 data); + u32 (*readl)(const void __iomem *addr, unsigned offset); + void (*writel)(void __iomem *addr, unsigned offset, u32 data); + void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf); + void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf); int (*set_mode)(struct musb *musb, u8 mode); void (*try_idle)(struct musb *musb, unsigned long timeout); int (*reset)(struct musb *musb); @@ -212,8 +216,7 @@ struct musb_hw_ep { void __iomem *fifo; void __iomem *regs; -#if defined(CONFIG_USB_MUSB_TUSB6010) || \ - defined(CONFIG_USB_MUSB_TUSB6010_MODULE) +#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) void __iomem *conf; #endif @@ -230,8 +233,7 @@ struct musb_hw_ep { struct dma_channel *tx_channel; struct dma_channel *rx_channel; -#if defined(CONFIG_USB_MUSB_TUSB6010) || \ - defined(CONFIG_USB_MUSB_TUSB6010_MODULE) +#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) /* TUSB has "asynchronous" and "synchronous" dma modes */ dma_addr_t fifo_async; dma_addr_t fifo_sync; @@ -292,6 +294,7 @@ struct musb { /* device lock */ spinlock_t lock; + struct musb_io io; const struct musb_platform_ops *ops; struct musb_context_registers context; @@ -334,8 +337,7 @@ struct musb { void __iomem *ctrl_base; void __iomem *mregs; -#if defined(CONFIG_USB_MUSB_TUSB6010) || \ - defined(CONFIG_USB_MUSB_TUSB6010_MODULE) +#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010) dma_addr_t async; dma_addr_t sync; void __iomem *sync_va; @@ -390,6 +392,7 @@ struct musb { /* is_suspended means USB B_PERIPHERAL suspend */ unsigned is_suspended:1; + unsigned need_finish_resume :1; /* may_wakeup means remote wakeup is enabled */ unsigned may_wakeup:1; @@ -474,7 +477,7 @@ static inline int musb_read_fifosize(struct musb *musb, u8 reg = 0; /* read from core using indexed model */ - reg = musb_readb(mbase, MUSB_EP_OFFSET(epnum, MUSB_FIFOSIZE)); + reg = musb_readb(mbase, musb->io.ep_offset(epnum, MUSB_FIFOSIZE)); /* 0's returned when no more endpoints */ if (!reg) return -ENODEV; |