+++ /dev/null
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- * (C) Copyright 2002 Hewlett-Packard Company
- * (C) Copyright 2003-2005 MontaVista Software Inc.
- *
- * Bus Glue for PPC On-Chip OHCI driver
- * Tested on Freescale MPC5200 and IBM STB04xxx
- *
- * Modified by Dale Farnsworth <dale@farnsworth.org> from ohci-sa1111.c
- *
- * This file is licenced under the GPL.
- */
-
-#include <linux/platform_device.h>
-#include <linux/signal.h>
-
-/* configure so an HC device and id are always provided */
-/* always called with process context; sleeping is OK */
-
-/**
- * usb_hcd_ppc_soc_probe - initialize On-Chip HCDs
- * Context: !in_interrupt()
- *
- * Allocates basic resources for this USB host controller.
- *
- * Store this function in the HCD's struct pci_driver as probe().
- */
-static int usb_hcd_ppc_soc_probe(const struct hc_driver *driver,
- struct platform_device *pdev)
-{
- int retval;
- struct usb_hcd *hcd;
- struct ohci_hcd *ohci;
- struct resource *res;
- int irq;
-
- pr_debug("initializing PPC-SOC USB Controller\n");
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- pr_debug("%s: no irq\n", __FILE__);
- return -ENODEV;
- }
- irq = res->start;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- pr_debug("%s: no reg addr\n", __FILE__);
- return -ENODEV;
- }
-
- hcd = usb_create_hcd(driver, &pdev->dev, "PPC-SOC USB");
- if (!hcd)
- return -ENOMEM;
- hcd->rsrc_start = res->start;
- hcd->rsrc_len = resource_size(res);
-
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- pr_debug("%s: request_mem_region failed\n", __FILE__);
- retval = -EBUSY;
- goto err1;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- pr_debug("%s: ioremap failed\n", __FILE__);
- retval = -ENOMEM;
- goto err2;
- }
-
- ohci = hcd_to_ohci(hcd);
- ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC;
-
-#ifdef CONFIG_PPC_MPC52xx
- /* MPC52xx doesn't need frame_no shift */
- ohci->flags |= OHCI_QUIRK_FRAME_NO;
-#endif
- ohci_hcd_init(ohci);
-
- retval = usb_add_hcd(hcd, irq, 0);
- if (retval == 0)
- return retval;
-
- pr_debug("Removing PPC-SOC USB Controller\n");
-
- iounmap(hcd->regs);
- err2:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- err1:
- usb_put_hcd(hcd);
- return retval;
-}
-
-
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
-/**
- * usb_hcd_ppc_soc_remove - shutdown processing for On-Chip HCDs
- * @pdev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_ppc_soc_probe().
- * It is always called from a thread
- * context, normally "rmmod", "apmd", or something similar.
- *
- */
-static void usb_hcd_ppc_soc_remove(struct usb_hcd *hcd,
- struct platform_device *pdev)
-{
- usb_remove_hcd(hcd);
-
- pr_debug("stopping PPC-SOC USB Controller\n");
-
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
-}
-
-static int __devinit
-ohci_ppc_soc_start(struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
- int ret;
-
- if ((ret = ohci_init(ohci)) < 0)
- return ret;
-
- if ((ret = ohci_run(ohci)) < 0) {
- dev_err(hcd->self.controller, "can't start %s\n",
- hcd->self.bus_name);
- ohci_stop(hcd);
- return ret;
- }
-
- return 0;
-}
-
-static const struct hc_driver ohci_ppc_soc_hc_driver = {
- .description = hcd_name,
- .hcd_priv_size = sizeof(struct ohci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ohci_irq,
- .flags = HCD_USB11 | HCD_MEMORY,
-
- /*
- * basic lifecycle operations
- */
- .start = ohci_ppc_soc_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
-#ifdef CONFIG_PM
- .bus_suspend = ohci_bus_suspend,
- .bus_resume = ohci_bus_resume,
-#endif
- .start_port_reset = ohci_start_port_reset,
-};
-
-static int ohci_hcd_ppc_soc_drv_probe(struct platform_device *pdev)
-{
- int ret;
-
- if (usb_disabled())
- return -ENODEV;
-
- ret = usb_hcd_ppc_soc_probe(&ohci_ppc_soc_hc_driver, pdev);
- return ret;
-}
-
-static int ohci_hcd_ppc_soc_drv_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_hcd_ppc_soc_remove(hcd, pdev);
- return 0;
-}
-
-static struct platform_driver ohci_hcd_ppc_soc_driver = {
- .probe = ohci_hcd_ppc_soc_drv_probe,
- .remove = ohci_hcd_ppc_soc_drv_remove,
- .shutdown = usb_hcd_platform_shutdown,
-#ifdef CONFIG_PM
- /*.suspend = ohci_hcd_ppc_soc_drv_suspend,*/
- /*.resume = ohci_hcd_ppc_soc_drv_resume,*/
-#endif
- .driver = {
- .name = "ppc-soc-ohci",
- .owner = THIS_MODULE,
- },
-};
-
-MODULE_ALIAS("platform:ppc-soc-ohci");
projects / firefly-linux-kernel-4.4.55.git / commitdiff