diff options
Diffstat (limited to 'drivers/usb/host/ehci-ps3.c')
| -rw-r--r-- | drivers/usb/host/ehci-ps3.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c new file mode 100644 index 0000000..4d781a2 --- /dev/null +++ b/drivers/usb/host/ehci-ps3.c @@ -0,0 +1,193 @@ +/* + * PS3 EHCI Host Controller driver + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * 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; version 2 of the License. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <asm/ps3.h> + +static int ps3_ehci_hc_reset(struct usb_hcd *hcd) +{ + int result; + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + + ehci->big_endian_mmio = 1; + + ehci->caps = hcd->regs; + ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci, + &ehci->caps->hc_capbase)); + + dbg_hcs_params(ehci, "reset"); + dbg_hcc_params(ehci, "reset"); + + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + + result = ehci_halt(ehci); + + if (result) + return result; + + result = ehci_init(hcd); + + if (result) + return result; + + ehci_port_power(ehci, 0); + + return result; +} + +static const struct hc_driver ps3_ehci_hc_driver = { + .description = hcd_name, + .product_desc = "PS3 EHCI Host Controller", + .hcd_priv_size = sizeof(struct ehci_hcd), + .irq = ehci_irq, + .flags = HCD_MEMORY | HCD_USB2, + .reset = ps3_ehci_hc_reset, + .start = ehci_run, + .stop = ehci_stop, + .shutdown = ehci_shutdown, + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, + .get_frame_number = ehci_get_frame, + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, +#if defined(CONFIG_PM) + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, +#endif +}; + +#if !defined(DEBUG) +#undef dev_dbg +static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg( + const struct device *_dev, const char *fmt, ...) {return 0;} +#endif + + +static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) +{ + int result; + struct usb_hcd *hcd; + unsigned int virq; + static u64 dummy_mask = DMA_32BIT_MASK; + + if (usb_disabled()) { + result = -ENODEV; + goto fail_start; + } + + result = ps3_mmio_region_create(dev->m_region); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", + __func__, __LINE__); + result = -EPERM; + goto fail_mmio; + } + + dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, + __LINE__, dev->m_region->lpar_addr); + + result = ps3_alloc_io_irq(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", + __func__, __LINE__, virq); + result = -EPERM; + goto fail_irq; + } + + dev->core.power.power_state = PMSG_ON; + dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ + + hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id); + + if (!hcd) { + dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, + __LINE__); + result = -ENOMEM; + goto fail_create_hcd; + } + + hcd->rsrc_start = dev->m_region->lpar_addr; + hcd->rsrc_len = dev->m_region->len; + hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); + + if (!hcd->regs) { + dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, + __LINE__); + result = -EPERM; + goto fail_ioremap; + } + + dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, + (unsigned long)hcd->rsrc_start); + dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, + (unsigned long)hcd->rsrc_len); + dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, + (unsigned long)hcd->regs); + dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, + (unsigned long)virq); + + ps3_system_bus_set_driver_data(dev, hcd); + + result = usb_add_hcd(hcd, virq, IRQF_DISABLED); + + if (result) { + dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", + __func__, __LINE__, result); + goto fail_add_hcd; + } + + return result; + +fail_add_hcd: + iounmap(hcd->regs); +fail_ioremap: + usb_put_hcd(hcd); +fail_create_hcd: + ps3_free_io_irq(virq); +fail_irq: + ps3_free_mmio_region(dev->m_region); +fail_mmio: +fail_start: + return result; +} + +static int ps3_ehci_sb_remove(struct ps3_system_bus_device *dev) +{ + struct usb_hcd *hcd = + (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); + + usb_put_hcd(hcd); + ps3_system_bus_set_driver_data(dev, NULL); + + return 0; +} + +MODULE_ALIAS("ps3-ehci"); + +static struct ps3_system_bus_driver ps3_ehci_sb_driver = { + .match_id = PS3_MATCH_ID_EHCI, + .core = { + .name = "ps3-ehci-driver", + }, + .probe = ps3_ehci_sb_probe, + .remove = ps3_ehci_sb_remove, +}; |