zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/usb/host/ohci-omap3.c b/ap/os/linux/linux-3.4.x/drivers/usb/host/ohci-omap3.c
new file mode 100644
index 0000000..1b8133b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/usb/host/ohci-omap3.c
@@ -0,0 +1,243 @@
+/*
+ * ohci-omap3.c - driver for OHCI on OMAP3 and later processors
+ *
+ * Bus Glue for OMAP3 USBHOST 3 port OHCI controller
+ * This controller is also used in later OMAPs and AM35x chips
+ *
+ * Copyright (C) 2007-2010 Texas Instruments, Inc.
+ * Author: Vikram Pandita <vikram.pandita@ti.com>
+ * Author: Anand Gadiyar <gadiyar@ti.com>
+ * Author: Keshava Munegowda <keshava_mgowda@ti.com>
+ *
+ * Based on ehci-omap.c and some other ohci glue layers
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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
+ *
+ * TODO (last updated Feb 27, 2011):
+ * - add kernel-doc
+ */
+
+#include <linux/platform_device.h>
+#include <plat/usb.h>
+#include <linux/pm_runtime.h>
+
+/*-------------------------------------------------------------------------*/
+
+static int ohci_omap3_init(struct usb_hcd *hcd)
+{
+ dev_dbg(hcd->self.controller, "starting OHCI controller\n");
+
+ return ohci_init(hcd_to_ohci(hcd));
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int ohci_omap3_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int ret;
+
+ /*
+ * RemoteWakeupConnected has to be set explicitly before
+ * calling ohci_run. The reset value of RWC is 0.
+ */
+ ohci->hc_control = OHCI_CTRL_RWC;
+ writel(OHCI_CTRL_RWC, &ohci->regs->control);
+
+ ret = ohci_run(ohci);
+
+ if (ret < 0) {
+ dev_err(hcd->self.controller, "can't start\n");
+ ohci_stop(hcd);
+ }
+
+ return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static const struct hc_driver ohci_omap3_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "OMAP3 OHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ohci_irq,
+ .flags = HCD_USB11 | HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = ohci_omap3_init,
+ .start = ohci_omap3_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,
+};
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * configure so an HC device and id are always provided
+ * always called with process context; sleeping is OK
+ */
+
+/**
+ * ohci_hcd_omap3_probe - initialize OMAP-based HCDs
+ *
+ * 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.
+ */
+static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct usb_hcd *hcd = NULL;
+ void __iomem *regs = NULL;
+ struct resource *res;
+ int ret = -ENODEV;
+ int irq;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ if (!dev->parent) {
+ dev_err(dev, "Missing parent device\n");
+ return -ENODEV;
+ }
+
+ irq = platform_get_irq_byname(pdev, "ohci-irq");
+ if (irq < 0) {
+ dev_err(dev, "OHCI irq failed\n");
+ return -ENODEV;
+ }
+
+ res = platform_get_resource_byname(pdev,
+ IORESOURCE_MEM, "ohci");
+ if (!res) {
+ dev_err(dev, "UHH OHCI get resource failed\n");
+ return -ENOMEM;
+ }
+
+ regs = ioremap(res->start, resource_size(res));
+ if (!regs) {
+ dev_err(dev, "UHH OHCI ioremap failed\n");
+ return -ENOMEM;
+ }
+
+
+ hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
+ dev_name(dev));
+ if (!hcd) {
+ dev_err(dev, "usb_create_hcd failed\n");
+ goto err_io;
+ }
+
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = resource_size(res);
+ hcd->regs = regs;
+
+ pm_runtime_enable(dev);
+ pm_runtime_get_sync(dev);
+
+ ohci_hcd_init(hcd_to_ohci(hcd));
+
+ ret = usb_add_hcd(hcd, irq, 0);
+ if (ret) {
+ dev_dbg(dev, "failed to add hcd with err %d\n", ret);
+ goto err_add_hcd;
+ }
+
+ return 0;
+
+err_add_hcd:
+ pm_runtime_put_sync(dev);
+ usb_put_hcd(hcd);
+
+err_io:
+ iounmap(regs);
+
+ return ret;
+}
+
+/*
+ * may be called without controller electrically present
+ * may be called with controller, bus, and devices active
+ */
+
+/**
+ * ohci_hcd_omap3_remove - shutdown processing for OHCI HCDs
+ * @pdev: USB Host Controller being removed
+ *
+ * Reverses the effect of ohci_hcd_omap3_probe(), first invoking
+ * the HCD's stop() method. It is always called from a thread
+ * context, normally "rmmod", "apmd", or something similar.
+ */
+static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+
+ iounmap(hcd->regs);
+ usb_remove_hcd(hcd);
+ pm_runtime_put_sync(dev);
+ pm_runtime_disable(dev);
+ usb_put_hcd(hcd);
+ return 0;
+}
+
+static void ohci_hcd_omap3_shutdown(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
+
+ if (hcd->driver->shutdown)
+ hcd->driver->shutdown(hcd);
+}
+
+static struct platform_driver ohci_hcd_omap3_driver = {
+ .probe = ohci_hcd_omap3_probe,
+ .remove = __devexit_p(ohci_hcd_omap3_remove),
+ .shutdown = ohci_hcd_omap3_shutdown,
+ .driver = {
+ .name = "ohci-omap3",
+ },
+};
+
+MODULE_ALIAS("platform:ohci-omap3");
+MODULE_AUTHOR("Anand Gadiyar <gadiyar@ti.com>");