USB: ps3 ehci bus glue
USB EHCI driver bus glue for the PS3 game console. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Geoff Levand
Greg Kroah-Hartman
parent
b3ebd52221
commit
ad75a41085
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@ -529,6 +529,8 @@ config PPC_PS3
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bool "Sony PS3 (incomplete)"
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depends on PPC_MULTIPLATFORM && PPC64
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select PPC_CELL
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select USB_ARCH_HAS_EHCI
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select USB_EHCI_BIG_ENDIAN_MMIO
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help
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This option enables support for the Sony PS3 game console
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and other platforms using the PS3 hypervisor.
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@ -907,7 +907,13 @@ MODULE_LICENSE ("GPL");
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#define PLATFORM_DRIVER ehci_hcd_au1xxx_driver
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#endif
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#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER)
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#ifdef CONFIG_PPC_PS3
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#include "ehci-ps3.c"
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#define PS3_SYSTEM_BUS_DRIVER ps3_ehci_sb_driver
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#endif
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#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
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!defined(PS3_SYSTEM_BUS_DRIVER)
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#error "missing bus glue for ehci-hcd"
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#endif
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@ -932,6 +938,20 @@ static int __init ehci_hcd_init(void)
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#ifdef PLATFORM_DRIVER
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platform_driver_unregister(&PLATFORM_DRIVER);
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#endif
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return retval;
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}
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#endif
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#ifdef PS3_SYSTEM_BUS_DRIVER
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retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER);
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if (retval < 0) {
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#ifdef PLATFORM_DRIVER
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platform_driver_unregister(&PLATFORM_DRIVER);
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#endif
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#ifdef PCI_DRIVER
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pci_unregister_driver(&PCI_DRIVER);
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#endif
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return retval;
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}
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#endif
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@ -947,6 +967,9 @@ static void __exit ehci_hcd_cleanup(void)
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#ifdef PCI_DRIVER
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pci_unregister_driver(&PCI_DRIVER);
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#endif
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#ifdef PS3_SYSTEM_BUS_DRIVER
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ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
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#endif
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}
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module_exit(ehci_hcd_cleanup);
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@ -0,0 +1,193 @@
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/*
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* PS3 EHCI Host Controller driver
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*
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* Copyright (C) 2006 Sony Computer Entertainment Inc.
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* Copyright 2006 Sony Corp.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <asm/ps3.h>
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static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
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{
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int result;
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struct ehci_hcd *ehci = hcd_to_ehci(hcd);
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ehci->big_endian_mmio = 1;
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ehci->caps = hcd->regs;
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ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci,
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&ehci->caps->hc_capbase));
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dbg_hcs_params(ehci, "reset");
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dbg_hcc_params(ehci, "reset");
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ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
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result = ehci_halt(ehci);
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if (result)
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return result;
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result = ehci_init(hcd);
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if (result)
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return result;
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ehci_port_power(ehci, 0);
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return result;
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}
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static const struct hc_driver ps3_ehci_hc_driver = {
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.description = hcd_name,
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.product_desc = "PS3 EHCI Host Controller",
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.hcd_priv_size = sizeof(struct ehci_hcd),
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.irq = ehci_irq,
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.flags = HCD_MEMORY | HCD_USB2,
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.reset = ps3_ehci_hc_reset,
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.start = ehci_run,
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.stop = ehci_stop,
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.shutdown = ehci_shutdown,
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.urb_enqueue = ehci_urb_enqueue,
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.urb_dequeue = ehci_urb_dequeue,
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.endpoint_disable = ehci_endpoint_disable,
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.get_frame_number = ehci_get_frame,
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.hub_status_data = ehci_hub_status_data,
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.hub_control = ehci_hub_control,
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#if defined(CONFIG_PM)
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.bus_suspend = ehci_bus_suspend,
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.bus_resume = ehci_bus_resume,
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#endif
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};
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#if !defined(DEBUG)
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#undef dev_dbg
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static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg(
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const struct device *_dev, const char *fmt, ...) {return 0;}
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#endif
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static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev)
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{
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int result;
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struct usb_hcd *hcd;
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unsigned int virq;
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static u64 dummy_mask = DMA_32BIT_MASK;
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if (usb_disabled()) {
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result = -ENODEV;
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goto fail_start;
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}
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result = ps3_mmio_region_create(dev->m_region);
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if (result) {
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dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
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__func__, __LINE__);
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result = -EPERM;
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goto fail_mmio;
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}
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dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
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__LINE__, dev->m_region->lpar_addr);
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result = ps3_alloc_io_irq(dev->interrupt_id, &virq);
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if (result) {
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dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
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__func__, __LINE__, virq);
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result = -EPERM;
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goto fail_irq;
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}
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dev->core.power.power_state = PMSG_ON;
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dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
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hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id);
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if (!hcd) {
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dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
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__LINE__);
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result = -ENOMEM;
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goto fail_create_hcd;
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}
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hcd->rsrc_start = dev->m_region->lpar_addr;
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hcd->rsrc_len = dev->m_region->len;
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hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
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if (!hcd->regs) {
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dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
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__LINE__);
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result = -EPERM;
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goto fail_ioremap;
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}
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dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
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(unsigned long)hcd->rsrc_start);
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dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
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(unsigned long)hcd->rsrc_len);
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dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
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(unsigned long)hcd->regs);
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dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
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(unsigned long)virq);
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ps3_system_bus_set_driver_data(dev, hcd);
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result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
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if (result) {
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dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
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__func__, __LINE__, result);
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goto fail_add_hcd;
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}
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return result;
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fail_add_hcd:
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iounmap(hcd->regs);
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fail_ioremap:
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usb_put_hcd(hcd);
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fail_create_hcd:
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ps3_free_io_irq(virq);
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fail_irq:
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ps3_free_mmio_region(dev->m_region);
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fail_mmio:
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fail_start:
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return result;
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}
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static int ps3_ehci_sb_remove(struct ps3_system_bus_device *dev)
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{
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struct usb_hcd *hcd =
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(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
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usb_put_hcd(hcd);
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ps3_system_bus_set_driver_data(dev, NULL);
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return 0;
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}
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MODULE_ALIAS("ps3-ehci");
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static struct ps3_system_bus_driver ps3_ehci_sb_driver = {
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.match_id = PS3_MATCH_ID_EHCI,
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.core = {
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.name = "ps3-ehci-driver",
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},
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.probe = ps3_ehci_sb_probe,
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.remove = ps3_ehci_sb_remove,
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};
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