Add realtek target files

Signed-off-by: Roman Yeryomin <roman@advem.lv>

1 files changed, 293 insertions, 0 deletions

diff --git a/target/linux/realtek/files/drivers/usb/host/ohci-rtl8652.c b/target/linux/realtek/files/drivers/usb/host/ohci-rtl8652.c
new file mode 100644
index 000000000..58f4fd79d
--- /dev/null
+++ b/target/linux/realtek/files/drivers/usb/host/ohci-rtl8652.c
@@ -0,0 +1,293 @@
+/*
+ * 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
+ *
+ * Bus Glue for rtl8652.
+ *
+ * Written by Christopher Hoover <ch@hpl.hp.com>
+ * Based on fragments of previous driver by Russell King et al.
+ *
+ * Modified for LH7A404 from ohci-sa1111.c
+ *  by Durgesh Pattamatta <pattamattad@sharpsec.com>
+ *
+ * Modified for pxa27x from ohci-lh7a404.c
+ *  by Nick Bane <nick@cecomputing.co.uk> 26-8-2004
+ *
+ * Modified for rtl8652 from ohci-pxa27x.c
+ *  by Lennert Buytenhek <buytenh@wantstofly.org> 28-2-2006
+ *  Based on an earlier driver by Ray Lehtiniemi
+ *
+ * This file is licenced under the GPL.
+ */
+#include <linux/device.h>
+#include <linux/signal.h>
+#include <linux/platform_device.h>
+#include "usb-rtl8652.h"
+
+static void rtl8652_start_hc(struct device *dev)
+{
+	return 0;
+}
+
+static void rtl8652_stop_hc(struct device *dev)
+{
+	return 0;
+}
+
+static int usb_hcd_rtl8652_probe(const struct hc_driver *driver,
+			 struct platform_device *pdev)
+{
+	int retval;
+	struct usb_hcd *hcd;
+
+	if (pdev->resource[1].flags != IORESOURCE_IRQ) {
+		pr_debug("resource[1] is not IORESOURCE_IRQ");
+		return -ENOMEM;
+	}
+
+	hcd = usb_create_hcd(driver, &pdev->dev, "rtl8652");
+	if (hcd == NULL)
+		return -ENOMEM;
+
+	hcd->rsrc_start = pdev->resource[0].start;
+	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		usb_put_hcd(hcd);
+		retval = -EBUSY;
+		goto err1;
+	}
+
+//	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	hcd->regs =  (void *)KSEG1ADDR(pdev->resource[0].start);
+	if (hcd->regs == NULL) {
+		pr_debug("ioremap failed");
+		retval = -ENOMEM;
+		goto err2;
+	}
+	rtl8652_start_hc(&pdev->dev);
+
+	ohci_hcd_init(hcd_to_ohci(hcd));
+
+	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
+	
+	if (retval == 0)
+		return retval;
+
+	rtl8652_stop_hc(&pdev->dev);
+//	iounmap(hcd->regs);
+err2:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err1:
+	usb_put_hcd(hcd);
+
+	return retval;
+}
+
+static void usb_hcd_rtl8652_remove(struct usb_hcd *hcd,
+			struct platform_device *pdev)
+{
+	usb_remove_hcd(hcd);
+	rtl8652_stop_hc(&pdev->dev);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+}
+
+static int __devinit ohci_rtl8652_start(struct usb_hcd *hcd)
+{
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	int ret;
+	unsigned int fminterval;
+
+	if ((ret = ohci_init(ohci)) < 0)
+		return ret;
+	
+  	fminterval = 0x2edf;
+	ohci_writel (ohci,(fminterval * 9) / 10, &ohci->regs->periodicstart);
+	fminterval |= ((((fminterval - 210) * 6) / 7) << 16); 
+	ohci_writel (ohci,fminterval, &ohci->regs->fminterval);	
+	ohci_writel (ohci,0x628, &ohci->regs->lsthresh);
+	ohci_writel(ohci,0x3e67,&ohci->regs->periodicstart);
+	if ((ret = ohci_run(ohci)) < 0) {
+		err("can't start %s", hcd->self.bus_name);
+		ohci_stop(hcd);
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct hc_driver ohci_rtl8652_hc_driver = {
+	.description		= hcd_name,
+	.product_desc		= "RTL8652 OHCI",
+	.hcd_priv_size		= sizeof(struct ohci_hcd),
+	.irq			= ohci_irq,
+	.flags			= HCD_USB11 | HCD_MEMORY,
+	.start			= ohci_rtl8652_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,
+#if 0
+	.hub_irq_enable		= ohci_rhsc_enable,
+#endif
+#ifdef CONFIG_PM
+	.bus_suspend		= ohci_bus_suspend,
+	.bus_resume		= ohci_bus_resume,
+#endif
+	.start_port_reset	= ohci_start_port_reset,
+};
+
+extern int usb_disabled(void);
+
+static int ohci_hcd_rtl8652_drv_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = -ENODEV;
+	if (!usb_disabled())
+	{
+		ret = usb_hcd_rtl8652_probe(&ohci_rtl8652_hc_driver, pdev);
+	}
+	return ret;
+}
+
+static int ohci_hcd_rtl8652_drv_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_hcd_rtl8652_remove(hcd, pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int ohci_hcd_rtl8652_drv_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+	if (time_before(jiffies, ohci->next_statechange))
+		msleep(5);
+	ohci->next_statechange = jiffies;
+
+	rtl8652_stop_hc(&pdev->dev);
+	hcd->state = HC_STATE_SUSPENDED;
+	pdev->dev.power.power_state = PMSG_SUSPEND;
+
+	return 0;
+}
+
+static int ohci_hcd_rtl8652_drv_resume(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	int status;
+
+	if (time_before(jiffies, ohci->next_statechange))
+		msleep(5);
+	ohci->next_statechange = jiffies;
+
+	rtl8652_start_hc(&pdev->dev);
+	pdev->dev.power.power_state = PMSG_ON;
+	usb_hcd_resume_root_hub(hcd);
+
+	return 0;
+}
+#endif
+
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:rtl8652-ohci");
+
+static struct platform_driver ohci_hcd_rtl8652_driver = {
+	.probe		= ohci_hcd_rtl8652_drv_probe,
+	.remove		= ohci_hcd_rtl8652_drv_remove,
+	.shutdown 	= usb_hcd_platform_shutdown,
+#ifdef CONFIG_PM
+	.suspend	= ohci_hcd_rtl8652_drv_suspend,
+	.resume		= ohci_hcd_rtl8652_drv_resume,
+#endif
+	.driver		= {
+		.name	= "rtl8652-ohci",
+		.owner	= THIS_MODULE,
+	},
+};
+
+/*here register platform rtl8652 usb device.
+  do it in kernel boot is a good choice*/
+	static struct platform_device *usb_dev_host = NULL;  
+static int  ohci_rtl8652_init(void)
+{
+	/*register platform device*/
+	int retval;
+	//static struct platform_device *usb_dev_host = NULL;
+
+	if(usb_dev_host!=NULL)
+	{	printk("Ohci-rtl8652.c: OHCI device already init\n");
+		return -1;
+	}
+	struct resource r[2];
+	memset(&r, 0, sizeof(r));
+
+	r[0].start = PADDR(OHCI_RTL8652_USB_BASE);
+	r[0].end =  PADDR(OHCI_RTL8652_USB_BASE)+sizeof(struct ohci_regs);
+	r[0].flags = IORESOURCE_MEM; 
+
+	r[1].start = r[1].end = RTL8652_USB_IRQ;
+	r[1].flags = IORESOURCE_IRQ;
+
+	usb_dev_host = platform_device_register_simple("rtl8652-ohci", 0, r, 2);
+
+	usb_dev_host->dev.coherent_dma_mask = 0xffffffffUL;
+       usb_dev_host->dev.dma_mask = &usb_dev_host->dev.coherent_dma_mask;
+	
+	if (IS_ERR(usb_dev_host)) 
+	{
+		retval = PTR_ERR(usb_dev_host);
+		usb_dev_host=NULL;  //wei add
+		goto err;
+	}
+	
+	return 0;
+	err:
+	return retval;
+}
+
+
+static void  ohci_rtl8652_cleanup(void)
+{
+	if(usb_dev_host==NULL)
+	{
+		printk("OHCI already cleanup\n");
+		return;
+	}
+	
+	platform_device_unregister(	usb_dev_host);
+	usb_dev_host=NULL;
+	
+
+}
+#if 0
+static int __init ohci_hcd_rtl8652_init(void)
+{
+	ohci_rtl8652_init();
+	return platform_driver_register(&ohci_hcd_rtl8652_driver);
+}
+
+static void __exit ohci_hcd_rtl8652_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_rtl8652_driver);
+}
+
+
+module_init(ohci_hcd_rtl8652_init);
+module_exit(ohci_hcd_rtl8652_cleanup);
+#endif
+