USB: ps3 ohci bus glue
USB OHCI 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
de44743b03
commit
6a6c957eba
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@ -529,6 +529,9 @@ 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_OHCI
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select USB_OHCI_LITTLE_ENDIAN
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select USB_OHCI_BIG_ENDIAN_MMIO
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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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@ -919,10 +919,16 @@ MODULE_LICENSE ("GPL");
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#define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver
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#endif
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#ifdef CONFIG_PPC_PS3
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#include "ohci-ps3.c"
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#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_sb_driver
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#endif
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#if !defined(PCI_DRIVER) && \
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!defined(PLATFORM_DRIVER) && \
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!defined(OF_PLATFORM_DRIVER) && \
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!defined(SA1111_DRIVER)
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!defined(SA1111_DRIVER) && \
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!defined(PS3_SYSTEM_BUS_DRIVER)
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#error "missing bus glue for ohci-hcd"
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#endif
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@ -937,6 +943,12 @@ static int __init ohci_hcd_mod_init(void)
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pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
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sizeof (struct ed), sizeof (struct td));
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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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goto error_ps3;
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#endif
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#ifdef PLATFORM_DRIVER
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retval = platform_driver_register(&PLATFORM_DRIVER);
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if (retval < 0)
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@ -978,6 +990,10 @@ static int __init ohci_hcd_mod_init(void)
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#ifdef PLATFORM_DRIVER
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platform_driver_unregister(&PLATFORM_DRIVER);
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error_platform:
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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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error_ps3:
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#endif
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return retval;
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}
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@ -997,6 +1013,9 @@ static void __exit ohci_hcd_mod_exit(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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#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(ohci_hcd_mod_exit);
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@ -0,0 +1,196 @@
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/*
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* PS3 OHCI 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_ohci_hc_reset(struct usb_hcd *hcd)
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{
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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ohci->flags |= OHCI_QUIRK_BE_MMIO;
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ohci_hcd_init(ohci);
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return ohci_init(ohci);
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}
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static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd)
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{
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int result;
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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/* Handle root hub init quirk in spider south bridge. */
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/* Also set PwrOn2PwrGood to 0x7f (254ms). */
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ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
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&ohci->regs->roothub.a);
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ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
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result = ohci_run(ohci);
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if (result < 0) {
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err("can't start %s", hcd->self.bus_name);
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ohci_stop(hcd);
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}
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return result;
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}
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static const struct hc_driver ps3_ohci_hc_driver = {
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.description = hcd_name,
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.product_desc = "PS3 OHCI Host Controller",
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.hcd_priv_size = sizeof(struct ohci_hcd),
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.irq = ohci_irq,
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.flags = HCD_MEMORY | HCD_USB11,
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.reset = ps3_ohci_hc_reset,
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.start = ps3_ohci_hc_start,
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.stop = ohci_stop,
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.shutdown = ohci_shutdown,
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.urb_enqueue = ohci_urb_enqueue,
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.urb_dequeue = ohci_urb_dequeue,
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.endpoint_disable = ohci_endpoint_disable,
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.get_frame_number = ohci_get_frame,
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.hub_status_data = ohci_hub_status_data,
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.hub_control = ohci_hub_control,
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.hub_irq_enable = ohci_rhsc_enable,
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.start_port_reset = ohci_start_port_reset,
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#if defined(CONFIG_PM)
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.bus_suspend = ohci_bus_suspend,
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.bus_resume = ohci_bus_resume,
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#endif
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};
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/* redefine dev_dbg to do a syntax check */
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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_ohci_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_ohci_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_ohci_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-ohci");
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static struct ps3_system_bus_driver ps3_ohci_sb_driver = {
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.match_id = PS3_MATCH_ID_OHCI,
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.core = {
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.name = "ps3-ohci-driver",
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},
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.probe = ps3_ohci_sb_probe,
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.remove = ps3_ohci_sb_remove,
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};
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