267 lines
6.8 KiB
C
267 lines
6.8 KiB
C
|
/*
|
||
|
|
* 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 void ps3_ehci_setup_insnreg(struct ehci_hcd *ehci)
|
||
|
|
{
|
||
|
|
/* PS3 HC internal setup register offsets. */
|
||
|
|
|
||
|
|
enum ps3_ehci_hc_insnreg {
|
||
|
|
ps3_ehci_hc_insnreg01 = 0x084,
|
||
|
|
ps3_ehci_hc_insnreg02 = 0x088,
|
||
|
|
ps3_ehci_hc_insnreg03 = 0x08c,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* PS3 EHCI HC errata fix 316 - The PS3 EHCI HC will reset its
|
||
|
|
* internal INSNREGXX setup regs back to the chip default values
|
||
|
|
* on Host Controller Reset (CMD_RESET) or Light Host Controller
|
||
|
|
* Reset (CMD_LRESET). The work-around for this is for the HC
|
||
|
|
* driver to re-initialise these regs when ever the HC is reset.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Set burst transfer counts to 256 out, 32 in. */
|
||
|
|
|
||
|
|
writel_be(0x01000020, (void __iomem *)ehci->regs +
|
||
|
|
ps3_ehci_hc_insnreg01);
|
||
|
|
|
||
|
|
/* Enable burst transfer counts. */
|
||
|
|
|
||
|
|
writel_be(0x00000001, (void __iomem *)ehci->regs +
|
||
|
|
ps3_ehci_hc_insnreg03);
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
result = ehci_setup(hcd);
|
||
|
|
if (result)
|
||
|
|
return result;
|
||
|
|
|
||
|
|
ps3_ehci_setup_insnreg(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 | HCD_BH,
|
||
|
|
.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,
|
||
|
|
.endpoint_reset = ehci_endpoint_reset,
|
||
|
|
.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,
|
||
|
|
|
||
|
|
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
|
||
|
|
};
|
||
|
|
|
||
|
|
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_BIT_MASK(32);
|
||
|
|
|
||
|
|
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_drvdata(dev, hcd);
|
||
|
|
|
||
|
|
result = usb_add_hcd(hcd, virq, 0);
|
||
|
|
|
||
|
|
if (result) {
|
||
|
|
dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
|
||
|
|
__func__, __LINE__, result);
|
||
|
|
goto fail_add_hcd;
|
||
|
|
}
|
||
|
|
|
||
|
|
device_wakeup_enable(hcd->self.controller);
|
||
|
|
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 = ps3_system_bus_get_drvdata(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;
|
||
|
|
|
||
|
|
usb_remove_hcd(hcd);
|
||
|
|
|
||
|
|
ps3_system_bus_set_drvdata(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 __init 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,
|
||
|
|
};
|