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[ar71xx] more ehci driver cleanup
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13454 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@ -1,12 +1,15 @@
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/*
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/*
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* EHCI HCD (Host Controller Driver) for USB.
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* Bus Glue for Atheros AR71xx built-in EHCI controller.
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*
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*
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* Copyright (C) 2007 Atheros Communications, Inc.
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* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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*
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* Bus Glue for Atheros AR71xx built-in EHCI controller
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* Parts of this file are based on Atheros' 2.6.15 BSP
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* Copyright (C) 2007 Atheros Communications, Inc.
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*
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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*/
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#include <linux/platform_device.h>
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#include <linux/platform_device.h>
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@ -14,16 +17,16 @@
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extern int usb_disabled(void);
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extern int usb_disabled(void);
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static void ar71xx_start_ehci(struct platform_device *pdev)
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static void ehci_ar71xx_setup(void)
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{
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{
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/*
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/*
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* TODO: implement
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* TODO: implement
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*/
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*/
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}
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}
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static int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
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static int ehci_ar71xx_probe(const struct hc_driver *driver,
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struct usb_hcd **hcd_out,
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struct usb_hcd **hcd_out,
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struct platform_device *pdev)
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struct platform_device *pdev)
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{
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{
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struct usb_hcd *hcd;
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struct usb_hcd *hcd;
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struct ehci_hcd *ehci;
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struct ehci_hcd *ehci;
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@ -39,17 +42,17 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
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}
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}
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irq = res->start;
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irq = res->start;
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hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
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if (!hcd)
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return -ENOMEM;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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if (!res) {
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dev_dbg(&pdev->dev, "no base address specified for %s\n",
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dev_dbg(&pdev->dev, "no base address specified for %s\n",
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pdev->dev.bus_id);
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pdev->dev.bus_id);
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ret = -ENODEV;
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return -ENODEV;
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goto err_put_hcd;
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}
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}
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hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
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if (!hcd)
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return -ENOMEM;
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hcd->rsrc_start = res->start;
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hcd->rsrc_start = res->start;
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hcd->rsrc_len = res->end - res->start + 1;
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hcd->rsrc_len = res->end - res->start + 1;
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@ -66,12 +69,13 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
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goto err_release_region;
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goto err_release_region;
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}
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}
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ehci = hcd_to_ehci(hcd);
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ehci = hcd_to_ehci(hcd);
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ehci->caps = hcd->regs;
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ehci->caps = hcd->regs;
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ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase));
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ehci->regs = hcd->regs +
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ehci->hcs_params = readl(&ehci->caps->hcs_params);
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HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
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ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
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ar71xx_start_ehci(pdev);
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ehci_ar71xx_setup();
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ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
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ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
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if (ret)
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if (ret)
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@ -89,8 +93,8 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
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return ret;
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return ret;
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}
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}
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static void usb_ehci_ar71xx_remove(struct usb_hcd *hcd,
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static void ehci_ar71xx_remove(struct usb_hcd *hcd,
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struct platform_device *pdev)
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struct platform_device *pdev)
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{
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{
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usb_remove_hcd(hcd);
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usb_remove_hcd(hcd);
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iounmap(hcd->regs);
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iounmap(hcd->regs);
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@ -140,32 +144,30 @@ static const struct hc_driver ehci_ar71xx_hc_driver = {
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#endif
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#endif
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};
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};
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static int ehci_hcd_ar71xx_drv_probe(struct platform_device *pdev)
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static int ehci_ar71xx_driver_probe(struct platform_device *pdev)
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{
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{
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struct usb_hcd *hcd = NULL;
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struct usb_hcd *hcd = NULL;
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int ret;
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ret = -ENODEV;
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if (usb_disabled())
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if (!usb_disabled())
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return -ENODEV;
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ret = usb_ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
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return ret;
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return ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
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}
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}
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static int ehci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
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static int ehci_ar71xx_driver_remove(struct platform_device *pdev)
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{
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{
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struct usb_hcd *hcd = platform_get_drvdata(pdev);
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struct usb_hcd *hcd = platform_get_drvdata(pdev);
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usb_ehci_ar71xx_remove(hcd, pdev);
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ehci_ar71xx_remove(hcd, pdev);
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return 0;
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return 0;
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}
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}
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static struct platform_driver ehci_hcd_ar71xx_driver = {
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MODULE_ALIAS("platform:ar71xx-ehci");
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.probe = ehci_hcd_ar71xx_drv_probe,
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.remove = ehci_hcd_ar71xx_drv_remove,
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static struct platform_driver ehci_ar71xx_driver = {
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.probe = ehci_ar71xx_driver_probe,
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.remove = ehci_ar71xx_driver_remove,
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.driver = {
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.driver = {
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.name = "ar71xx-ehci",
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.name = "ar71xx-ehci",
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}
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}
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};
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};
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MODULE_ALIAS("platform:ar71xx-ehci");
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