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ar71xx: move PCI intterupt handling code to pci-ar7{1xx,24x}.c
[openwrt.git] / target / linux / ar71xx / files / drivers / usb / host / ehci-ar71xx.c
diff --git a/target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c b/target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c
index 6c7f29f..01433c2 100644 (file)
--- a/target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c
+++ b/target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c
@@ -1,36 +1,77 @@
 /*
 /*
- * EHCI HCD (Host Controller Driver) for USB.
+ *  Bus Glue for Atheros AR71xx built-in EHCI controller.
  *
  *
- * Copyright (C) 2007 Atheros Communications, Inc.
- * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *
- * Bus Glue for Atheros AR71xx built-in EHCI controller
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *     Copyright (C) 2007 Atheros Communications, Inc.
  *
  *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
  */
 
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 
  */
 
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 
+#include <asm/mach-ar71xx/platform.h>
+
 extern int usb_disabled(void);
 
 extern int usb_disabled(void);
 
-static void ar71xx_start_ehci(struct platform_device *pdev)
+static int ehci_ar71xx_init(struct usb_hcd *hcd)
 {
 {
+       struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+       int ret;
+
+       ehci->caps = hcd->regs;
+       ehci->regs = hcd->regs +
+                       HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+       ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+       ehci->sbrn = 0x20;
+       ehci->has_synopsys_hc_bug = 1;
+
+       ehci_reset(ehci);
+
+       ret = ehci_init(hcd);
+       if (ret)
+               return ret;
+
+       ehci_port_power(ehci, 0);
+
+       return 0;
 }
 
 }
 
-static void ar71xx_stop_ehci(struct platform_device *pdev)
+static int ehci_ar91xx_init(struct usb_hcd *hcd)
 {
 {
-       /*
-        * TODO: implement
-        */
+       struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+       int ret;
+
+       ehci->caps = hcd->regs + 0x100;
+       ehci->regs = hcd->regs + 0x100 +
+                       HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+       ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+       hcd->has_tt = 1;
+       ehci->sbrn = 0x20;
+
+       ehci_reset(ehci);
+
+       ret = ehci_init(hcd);
+       if (ret)
+               return ret;
+
+       ehci_port_power(ehci, 0);
+
+       return 0;
 }
 
 }
 
-int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
-                         struct usb_hcd **hcd_out,
-                         struct platform_device *pdev)
+static int ehci_ar71xx_probe(const struct hc_driver *driver,
+                            struct usb_hcd **hcd_out,
+                            struct platform_device *pdev)
 {
        struct usb_hcd *hcd;
 {
        struct usb_hcd *hcd;
-       struct ehci_hcd *ehci;
        struct resource *res;
        int irq;
        int ret;
        struct resource *res;
        int irq;
        int ret;
@@ -38,22 +79,22 @@ int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
                dev_dbg(&pdev->dev, "no IRQ specified for %s\n",
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
                dev_dbg(&pdev->dev, "no IRQ specified for %s\n",
-                       pdev->dev.bus_id);
+                       dev_name(&pdev->dev));
                return -ENODEV;
        }
        irq = res->start;
 
                return -ENODEV;
        }
        irq = res->start;
 
-       hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
-       if (!hcd)
-               return -ENOMEM;
-
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res) {
                dev_dbg(&pdev->dev, "no base address specified for %s\n",
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        if (!res) {
                dev_dbg(&pdev->dev, "no base address specified for %s\n",
-                       pdev->dev.bus_id);
-               ret = -ENODEV;
-               goto err_put_hcd;
+                       dev_name(&pdev->dev));
+               return -ENODEV;
        }
        }
+
+       hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
+       if (!hcd)
+               return -ENOMEM;
+
        hcd->rsrc_start = res->start;
        hcd->rsrc_len   = res->end - res->start + 1;
 
        hcd->rsrc_start = res->start;
        hcd->rsrc_len   = res->end - res->start + 1;
 
@@ -70,124 +111,132 @@ int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
                goto err_release_region;
        }
 
                goto err_release_region;
        }
 
-       ar71xx_start_ehci(pdev);
-
-#if 0
-       ehci            = hcd_to_ehci(hcd);
-       ehci->caps      = hcd->regs;
-       ehci->regs      = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase));
-       ehci->hcs_params = readl(&ehci->caps->hcs_params);
-#endif
-
        ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
        if (ret)
        ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
        if (ret)
-               goto err_stop_ehc;
+               goto err_iounmap;
 
        return 0;
 
 
        return 0;
 
-err_stop_ehc:
-       ar71xx_stop_ehci(pdev);
+ err_iounmap:
        iounmap(hcd->regs);
 
        iounmap(hcd->regs);
 
-err_release_region:
+ err_release_region:
        release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
        release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_put_hcd:
+ err_put_hcd:
        usb_put_hcd(hcd);
        return ret;
 }
 
        usb_put_hcd(hcd);
        return ret;
 }
 
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
-/**
- * usb_ehci_ar71xx_remove - shutdown processing for AR71xx-based HCDs
- * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_ar71xx_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_ehci_ar71xx_remove(struct usb_hcd *hcd,
-                                  struct platform_device *pdev)
+static void ehci_ar71xx_remove(struct usb_hcd *hcd,
+                              struct platform_device *pdev)
 {
        usb_remove_hcd(hcd);
 {
        usb_remove_hcd(hcd);
-       ar71xx_stop_ehci(pdev);
        iounmap(hcd->regs);
        release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
        usb_put_hcd(hcd);
 }
 
 static const struct hc_driver ehci_ar71xx_hc_driver = {
        iounmap(hcd->regs);
        release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
        usb_put_hcd(hcd);
 }
 
 static const struct hc_driver ehci_ar71xx_hc_driver = {
-       .description    = hcd_name,
-       .product_desc   = "Atheros AR71xx built-in EHCI controller",
-       .hcd_priv_size  = sizeof(struct ehci_hcd),
-       /*
-        * generic hardware linkage
-        */
-       .irq            = ehci_irq,
-       .flags          = HCD_MEMORY | HCD_USB2,
-
-       /*
-        * basic lifecycle operations
-        */
-       .reset          = ehci_init,
-       .start          = ehci_run,
-       .stop           = ehci_stop,
-       .shutdown       = ehci_shutdown,
-
-       /*
-        * managing i/o requests and associated device resources
-        */
+       .description            = hcd_name,
+       .product_desc           = "Atheros AR71xx built-in EHCI controller",
+       .hcd_priv_size          = sizeof(struct ehci_hcd),
+
+       .irq                    = ehci_irq,
+       .flags                  = HCD_MEMORY | HCD_USB2,
+
+       .reset                  = ehci_ar71xx_init,
+       .start                  = ehci_run,
+       .stop                   = ehci_stop,
+       .shutdown               = ehci_shutdown,
+
        .urb_enqueue            = ehci_urb_enqueue,
        .urb_dequeue            = ehci_urb_dequeue,
        .endpoint_disable       = ehci_endpoint_disable,
        .urb_enqueue            = ehci_urb_enqueue,
        .urb_dequeue            = ehci_urb_dequeue,
        .endpoint_disable       = ehci_endpoint_disable,
+       .endpoint_reset         = ehci_endpoint_reset,
 
 
-       /*
-        * scheduling support
-        */
-       .get_frame_number = ehci_get_frame,
+       .get_frame_number       = ehci_get_frame,
 
 
-       /*
-        * root hub support
-        */
        .hub_status_data        = ehci_hub_status_data,
        .hub_control            = ehci_hub_control,
 #ifdef CONFIG_PM
        .hub_suspend            = ehci_hub_suspend,
        .hub_resume             = ehci_hub_resume,
 #endif
        .hub_status_data        = ehci_hub_status_data,
        .hub_control            = ehci_hub_control,
 #ifdef CONFIG_PM
        .hub_suspend            = ehci_hub_suspend,
        .hub_resume             = ehci_hub_resume,
 #endif
+       .relinquish_port        = ehci_relinquish_port,
+       .port_handed_over       = ehci_port_handed_over,
+
+       .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
 };
 
 };
 
-static int ehci_hcd_ar71xx_drv_probe(struct platform_device *pdev)
+static const struct hc_driver ehci_ar91xx_hc_driver = {
+       .description            = hcd_name,
+       .product_desc           = "Atheros AR91xx built-in EHCI controller",
+       .hcd_priv_size          = sizeof(struct ehci_hcd),
+       .irq                    = ehci_irq,
+       .flags                  = HCD_MEMORY | HCD_USB2,
+
+       .reset                  = ehci_ar91xx_init,
+       .start                  = ehci_run,
+       .stop                   = ehci_stop,
+       .shutdown               = ehci_shutdown,
+
+       .urb_enqueue            = ehci_urb_enqueue,
+       .urb_dequeue            = ehci_urb_dequeue,
+       .endpoint_disable       = ehci_endpoint_disable,
+       .endpoint_reset         = ehci_endpoint_reset,
+
+       .get_frame_number       = ehci_get_frame,
+
+       .hub_status_data        = ehci_hub_status_data,
+       .hub_control            = ehci_hub_control,
+#ifdef CONFIG_PM
+       .hub_suspend            = ehci_hub_suspend,
+       .hub_resume             = ehci_hub_resume,
+#endif
+       .relinquish_port        = ehci_relinquish_port,
+       .port_handed_over       = ehci_port_handed_over,
+
+       .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+};
+
+static int ehci_ar71xx_driver_probe(struct platform_device *pdev)
 {
 {
+       struct ar71xx_ehci_platform_data *pdata;
        struct usb_hcd *hcd = NULL;
        int ret;
 
        struct usb_hcd *hcd = NULL;
        int ret;
 
-       ret = -ENODEV;
-       if (!usb_disabled())
-               ret = usb_ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
+       if (usb_disabled())
+               return -ENODEV;
+
+       pdata = pdev->dev.platform_data;
+       if (!pdata) {
+               dev_err(&pdev->dev, "no platform data specified for %s\n",
+                       dev_name(&pdev->dev));
+               return -ENODEV;
+       }
+
+       if (pdata->is_ar91xx)
+               ret = ehci_ar71xx_probe(&ehci_ar91xx_hc_driver, &hcd, pdev);
+       else
+               ret = ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
 
        return ret;
 }
 
 
        return ret;
 }
 
-static int ehci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
+static int ehci_ar71xx_driver_remove(struct platform_device *pdev)
 {
        struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 {
        struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
-       usb_ehci_ar71xx_remove(hcd, pdev);
+       ehci_ar71xx_remove(hcd, pdev);
        return 0;
 }
 
        return 0;
 }
 
-static struct platform_driver ehci_hcd_ar71xx_driver = {
-       .probe          = ehci_hcd_ar71xx_drv_probe,
-       .remove         = ehci_hcd_ar71xx_drv_remove,
-       .shutdown       = usb_hcd_platform_shutdown,
+MODULE_ALIAS("platform:ar71xx-ehci");
+
+static struct platform_driver ehci_ar71xx_driver = {
+       .probe          = ehci_ar71xx_driver_probe,
+       .remove         = ehci_ar71xx_driver_remove,
        .driver = {
                .name   = "ar71xx-ehci",
        .driver = {
                .name   = "ar71xx-ehci",
-               .bus    = &platform_bus_type
        }
 };
        }
 };
-
-MODULE_ALIAS("ar71xx-ehci");
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