diff options
Diffstat (limited to 'target/linux/ar71xx/files/drivers/usb')
| -rw-r--r-- | target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c | 72 |
1 files changed, 37 insertions, 35 deletions
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 83f72a05c0..a69f17d25d 100644 --- a/target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c +++ b/target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c @@ -1,12 +1,15 @@ /* - * 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 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> @@ -14,16 +17,16 @@ extern int usb_disabled(void); -static void ar71xx_start_ehci(struct platform_device *pdev) +static void ehci_ar71xx_setup(void) { /* * TODO: implement */ } -static 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 ehci_hcd *ehci; @@ -39,17 +42,17 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver, } 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", pdev->dev.bus_id); - ret = -ENODEV; - goto err_put_hcd; + return -ENODEV; } + + hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + if (!hcd) + return -ENOMEM; + hcd->rsrc_start = res->start; hcd->rsrc_len = res->end - res->start + 1; @@ -66,12 +69,13 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver, goto err_release_region; } - 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); + ehci = hcd_to_ehci(hcd); + 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); - ar71xx_start_ehci(pdev); + ehci_ar71xx_setup(); ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (ret) @@ -89,8 +93,8 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver, return ret; } -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); iounmap(hcd->regs); @@ -140,32 +144,30 @@ static const struct hc_driver ehci_ar71xx_hc_driver = { #endif }; -static int ehci_hcd_ar71xx_drv_probe(struct platform_device *pdev) +static int ehci_ar71xx_driver_probe(struct platform_device *pdev) { 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; - return ret; + return ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev); } -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); - usb_ehci_ar71xx_remove(hcd, pdev); + ehci_ar71xx_remove(hcd, pdev); return 0; } -static struct platform_driver ehci_hcd_ar71xx_driver = { - .probe = ehci_hcd_ar71xx_drv_probe, - .remove = ehci_hcd_ar71xx_drv_remove, +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", } }; - -MODULE_ALIAS("platform:ar71xx-ehci"); |