--- /dev/null
+/*
+ * 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(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,
+};
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff