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more ehci driver cleanup

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SVN-Revision: 13454
This commit is contained in:
Gabor Juhos 2008-11-30 20:09:43 +00:00
parent 0449ca0d6e
commit a89b690fdc
1 changed files with 37 additions and 35 deletions
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72
target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c
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@ -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");