| /* |
| * 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/firmware.h> |
| #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_reset(ehci); |
| |
| 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 |
| .relinquish_port = ehci_relinquish_port, |
| .port_handed_over = ehci_port_handed_over, |
| }; |
| |
| static int ps3_ehci_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_open_hv_device(dev); |
| |
| if (result) { |
| dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n", |
| __func__, __LINE__); |
| goto fail_open; |
| } |
| |
| result = ps3_dma_region_create(dev->d_region); |
| |
| if (result) { |
| dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " |
| "(%d)\n", __func__, __LINE__, result); |
| BUG_ON("check region type"); |
| goto fail_dma_region; |
| } |
| |
| 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_region; |
| } |
| |
| dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, |
| __LINE__, dev->m_region->lpar_addr); |
| |
| result = ps3_io_irq_setup(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.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ |
| |
| hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core)); |
| |
| 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; |
| |
| if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) |
| dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n", |
| __func__, __LINE__); |
| |
| 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: |
| release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
| usb_put_hcd(hcd); |
| fail_create_hcd: |
| ps3_io_irq_destroy(virq); |
| fail_irq: |
| ps3_free_mmio_region(dev->m_region); |
| fail_mmio_region: |
| ps3_dma_region_free(dev->d_region); |
| fail_dma_region: |
| ps3_close_hv_device(dev); |
| fail_open: |
| fail_start: |
| return result; |
| } |
| |
| static int ps3_ehci_remove(struct ps3_system_bus_device *dev) |
| { |
| unsigned int tmp; |
| struct usb_hcd *hcd = |
| (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); |
| |
| BUG_ON(!hcd); |
| |
| dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs); |
| dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq); |
| |
| tmp = hcd->irq; |
| |
| ehci_shutdown(hcd); |
| usb_remove_hcd(hcd); |
| |
| ps3_system_bus_set_driver_data(dev, NULL); |
| |
| BUG_ON(!hcd->regs); |
| iounmap(hcd->regs); |
| |
| release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
| usb_put_hcd(hcd); |
| |
| ps3_io_irq_destroy(tmp); |
| ps3_free_mmio_region(dev->m_region); |
| |
| ps3_dma_region_free(dev->d_region); |
| ps3_close_hv_device(dev); |
| |
| return 0; |
| } |
| |
| static int ps3_ehci_driver_register(struct ps3_system_bus_driver *drv) |
| { |
| return firmware_has_feature(FW_FEATURE_PS3_LV1) |
| ? ps3_system_bus_driver_register(drv) |
| : 0; |
| } |
| |
| static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv) |
| { |
| if (firmware_has_feature(FW_FEATURE_PS3_LV1)) |
| ps3_system_bus_driver_unregister(drv); |
| } |
| |
| MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI); |
| |
| static struct ps3_system_bus_driver ps3_ehci_driver = { |
| .core.name = "ps3-ehci-driver", |
| .core.owner = THIS_MODULE, |
| .match_id = PS3_MATCH_ID_EHCI, |
| .probe = ps3_ehci_probe, |
| .remove = ps3_ehci_remove, |
| .shutdown = ps3_ehci_remove, |
| }; |