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[ar71xx] more ehci driver cleanup

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13454 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2008-11-30 20:09:43 +00:00
parent fc7aa5ba16
commit bf02f554df
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 Gabor Juhos <juhosg@openwrt.org> * Copyright (C) 2008 Imre Kaloz <kaloz@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/platform_device.h>
@ -14,16 +17,16 @@
extern int usb_disabled(void); extern int usb_disabled(void);
static void ar71xx_start_ehci(struct platform_device *pdev) static void ehci_ar71xx_setup(void)
{ {
/* /*
* TODO: implement * TODO: implement
*/ */
} }
static int usb_ehci_ar71xx_probe(const struct hc_driver *driver, static int ehci_ar71xx_probe(const struct hc_driver *driver,
struct usb_hcd **hcd_out, struct usb_hcd **hcd_out,
struct platform_device *pdev) struct platform_device *pdev)
{ {
struct usb_hcd *hcd; struct usb_hcd *hcd;
struct ehci_hcd *ehci; struct ehci_hcd *ehci;
@ -39,17 +42,17 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
} }
irq = res->start; 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); res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) { if (!res) {
dev_dbg(&pdev->dev, "no base address specified for %s\n", dev_dbg(&pdev->dev, "no base address specified for %s\n",
pdev->dev.bus_id); pdev->dev.bus_id);
ret = -ENODEV; return -ENODEV;
goto err_put_hcd;
} }
hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = res->start; hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1; 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; goto err_release_region;
} }
ehci = hcd_to_ehci(hcd); ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs; ehci->caps = hcd->regs;
ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); ehci->regs = hcd->regs +
ehci->hcs_params = readl(&ehci->caps->hcs_params); 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); ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret) if (ret)
@ -89,8 +93,8 @@ static int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
return ret; return ret;
} }
static void usb_ehci_ar71xx_remove(struct usb_hcd *hcd, static void ehci_ar71xx_remove(struct usb_hcd *hcd,
struct platform_device *pdev) struct platform_device *pdev)
{ {
usb_remove_hcd(hcd); usb_remove_hcd(hcd);
iounmap(hcd->regs); iounmap(hcd->regs);
@ -140,32 +144,30 @@ static const struct hc_driver ehci_ar71xx_hc_driver = {
#endif #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; struct usb_hcd *hcd = NULL;
int ret;
ret = -ENODEV; if (usb_disabled())
if (!usb_disabled()) return -ENODEV;
ret = usb_ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
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); 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 = { MODULE_ALIAS("platform:ar71xx-ehci");
.probe = ehci_hcd_ar71xx_drv_probe,
.remove = ehci_hcd_ar71xx_drv_remove, static struct platform_driver ehci_ar71xx_driver = {
.probe = ehci_ar71xx_driver_probe,
.remove = ehci_ar71xx_driver_remove,
.driver = { .driver = {
.name = "ar71xx-ehci", .name = "ar71xx-ehci",
} }
}; };
MODULE_ALIAS("platform:ar71xx-ehci");