--- /dev/null
+/*
+ * 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/ps3.h>
+
+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;
+ ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci,
+ &ehci->caps->hc_capbase));
+
+ dbg_hcs_params(ehci, "reset");
+ dbg_hcc_params(ehci, "reset");
+
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+ result = ehci_halt(ehci);
+
+ if (result)
+ return result;
+
+ result = ehci_init(hcd);
+
+ if (result)
+ return result;
+
+ ehci_port_power(ehci, 0);
+
+ 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,
+ .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,
+ .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
+};
+
+#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_ehci_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_ehci_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_ehci_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-ehci");
+
+static struct ps3_system_bus_driver ps3_ehci_sb_driver = {
+ .match_id = PS3_MATCH_ID_EHCI,
+ .core = {
+ .name = "ps3-ehci-driver",
+ },
+ .probe = ps3_ehci_sb_probe,
+ .remove = ps3_ehci_sb_remove,
+};
projects / mirror_ubuntu-focal-kernel.git / commitdiff