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/*
* PS3 OHCI 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_ohci_hc_reset(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
ohci->flags |= OHCI_QUIRK_BE_MMIO;
ohci_hcd_init(ohci);
return ohci_init(ohci);
}
static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd)
{
int result;
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
/* Handle root hub init quirk in spider south bridge. */
/* Also set PwrOn2PwrGood to 0x7f (254ms). */
ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
&ohci->regs->roothub.a);
ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
result = ohci_run(ohci);
if (result < 0) {
err("can't start %s", hcd->self.bus_name);
ohci_stop(hcd);
}
return result;
}
static const struct hc_driver ps3_ohci_hc_driver = {
.description = hcd_name,
.product_desc = "PS3 OHCI Host Controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_MEMORY | HCD_USB11,
.reset = ps3_ohci_hc_reset,
.start = ps3_ohci_hc_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
.get_frame_number = ohci_get_frame,
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
.hub_irq_enable = ohci_rhsc_enable,
.start_port_reset = ohci_start_port_reset,
#if defined(CONFIG_PM)
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
};
/* redefine dev_dbg to do a syntax check */
#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_ohci_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_ohci_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_ohci_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-ohci");
static struct ps3_system_bus_driver ps3_ohci_sb_driver = {
.match_id = PS3_MATCH_ID_OHCI,
.core = {
.name = "ps3-ohci-driver",
},
.probe = ps3_ohci_sb_probe,
.remove = ps3_ohci_sb_remove,
};
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