Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 234 insertions, 0 deletions

diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c
new file mode 100644
index 000000000000..17964c39d06a
--- /dev/null
+++ b/drivers/usb/host/ohci-ppc-soc.c
@@ -0,0 +1,234 @@
+/*
+ * 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 <asm/usb.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, and
+ * then invokes the start() method for the HCD associated with it
+ * through the hotplug entry's driver_data.
+ *
+ * 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;
+	struct usb_hcd_platform_data *pd = pdev->dev.platform_data;
+
+	pr_debug("initializing PPC-SOC USB Controller\n");
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		pr_debug(__FILE__ ": no irq\n");
+		return -ENODEV;
+	}
+	irq = res->start;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		pr_debug(__FILE__ ": no reg addr\n");
+		return -ENODEV;
+	}
+
+	hcd = usb_create_hcd(driver, &pdev->dev, "PPC-SOC USB");
+	if (!hcd)
+		return -ENOMEM;
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = res->end - res->start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		pr_debug(__FILE__ ": request_mem_region failed\n");
+		retval = -EBUSY;
+		goto err1;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		pr_debug(__FILE__ ": ioremap failed\n");
+		retval = -ENOMEM;
+		goto err2;
+	}
+
+	if (pd->start && (retval = pd->start(pdev)))
+		goto err3;
+
+	ohci = hcd_to_ohci(hcd);
+	ohci->flags |= OHCI_BIG_ENDIAN;
+	ohci_hcd_init(ohci);
+
+	retval = usb_add_hcd(hcd, irq, SA_INTERRUPT);
+	if (retval == 0)
+		return retval;
+
+	pr_debug("Removing PPC-SOC USB Controller\n");
+	if (pd && pd->stop)
+		pd->stop(pdev);
+ err3:
+	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(), first invoking
+ * the HCD's stop() method.  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)
+{
+	struct usb_hcd_platform_data *pd = pdev->dev.platform_data;
+
+	usb_remove_hcd(hcd);
+
+	pr_debug("stopping PPC-SOC USB Controller\n");
+	if (pd && pd->stop)
+		pd->stop(pdev);
+
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_hcd_put(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) {
+		err("can't start %s", ohci_to_hcd(ohci)->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,
+
+	/*
+	 * 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_USB_SUSPEND
+	.hub_suspend =		ohci_hub_suspend,
+	.hub_resume =		ohci_hub_resume,
+#endif
+	.start_port_reset =	ohci_start_port_reset,
+};
+
+static int ohci_hcd_ppc_soc_drv_probe(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	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 device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+
+	usb_hcd_ppc_soc_remove(hcd, pdev);
+	return 0;
+}
+
+static struct device_driver ohci_hcd_ppc_soc_driver = {
+	.name		= "ppc-soc-ohci",
+	.bus		= &platform_bus_type,
+	.probe		= ohci_hcd_ppc_soc_drv_probe,
+	.remove		= ohci_hcd_ppc_soc_drv_remove,
+#if	defined(CONFIG_USB_SUSPEND) || defined(CONFIG_PM)
+	/*.suspend	= ohci_hcd_ppc_soc_drv_suspend,*/
+	/*.resume	= ohci_hcd_ppc_soc_drv_resume,*/
+#endif
+};
+
+static int __init ohci_hcd_ppc_soc_init(void)
+{
+	pr_debug(DRIVER_INFO " (PPC SOC)\n");
+	pr_debug("block sizes: ed %d td %d\n", sizeof(struct ed),
+							sizeof(struct td));
+
+	return driver_register(&ohci_hcd_ppc_soc_driver);
+}
+
+static void __exit ohci_hcd_ppc_soc_cleanup(void)
+{
+	driver_unregister(&ohci_hcd_ppc_soc_driver);
+}
+
+module_init(ohci_hcd_ppc_soc_init);
+module_exit(ohci_hcd_ppc_soc_cleanup);