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OHCI driver cleanup 

SVN-Revision: 13508
lede-17.01
Gabor Juhos 2008-12-04 09:42:26 +00:00
parent 9f0e63ea9a
commit fbe5c883a0
1 changed files with 29 additions and 64 deletions
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93
target/linux/ar71xx/files/drivers/usb/host/ohci-ar71xx.c
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@ -1,12 +1,17 @@
/*
* OHCI HCD (Host Controller Driver) for USB.
* OHCI HCD (Host Controller Driver) for USB.
*
* Copyright (C) 2007 Atheros Communications, Inc.
* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
* Bus Glue for Atheros AR71xx built-in OHCI controller.
*
* Bus Glue for Atheros AR71xx built-in OHCI controller
* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* 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>
@ -14,19 +19,8 @@
extern int usb_disabled(void);
static void ar71xx_start_ohci(struct platform_device *pdev)
{
}
static void ar71xx_stop_ohci(struct platform_device *pdev)
{
/*
* TODO: implement
*/
}
int usb_hcd_ar71xx_probe(const struct hc_driver *driver,
struct platform_device *pdev)
static int usb_hcd_ar71xx_probe(const struct hc_driver *driver,
struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
@ -68,7 +62,6 @@ int usb_hcd_ar71xx_probe(const struct hc_driver *driver,
goto err_release_region;
}
ar71xx_start_ohci(pdev);
ohci_hcd_init(hcd_to_ohci(hcd));
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
@ -77,34 +70,18 @@ int usb_hcd_ar71xx_probe(const struct hc_driver *driver,
return 0;
err_stop_hcd:
ar71xx_stop_ohci(pdev);
err_stop_hcd:
iounmap(hcd->regs);
err_release_region:
err_release_region:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err_put_hcd:
err_put_hcd:
usb_put_hcd(hcd);
return ret;
}
/* may be called without controller electrically present */
/* may be called with controller, bus, and devices active */
/**
* usb_hcd_ar71xx_remove - shutdown processing for AR71xx 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.
*
*/
void usb_hcd_ar71xx_remove(struct usb_hcd *hcd, struct platform_device *pdev)
{
usb_remove_hcd(hcd);
ar71xx_stop_ohci(pdev);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
@ -125,32 +102,23 @@ static int __devinit ohci_ar71xx_start(struct usb_hcd *hcd)
return 0;
err:
err:
ohci_stop(hcd);
return ret;
}
static const struct hc_driver ohci_ar71xx_hc_driver = {
.description = hcd_name,
.product_desc = "Atheros AR71xx built-in OHCI controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.description = hcd_name,
.product_desc = "Atheros AR71xx built-in OHCI controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.start = ohci_ar71xx_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.start = ohci_ar71xx_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
@ -170,13 +138,10 @@ static const struct hc_driver ohci_ar71xx_hc_driver = {
static int ohci_hcd_ar71xx_drv_probe(struct platform_device *pdev)
{
int ret;
if (usb_disabled())
return -ENODEV;
ret = -ENODEV;
if (!usb_disabled())
ret = usb_hcd_ar71xx_probe(&ohci_ar71xx_hc_driver, pdev);
return ret;
return usb_hcd_ar71xx_probe(&ohci_ar71xx_hc_driver, pdev);
}
static int ohci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
@ -187,6 +152,8 @@ static int ohci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
return 0;
}
MODULE_ALIAS("platform:ar71xx-ohci");
static struct platform_driver ohci_hcd_ar71xx_driver = {
.probe = ohci_hcd_ar71xx_drv_probe,
.remove = ohci_hcd_ar71xx_drv_remove,
@ -196,5 +163,3 @@ static struct platform_driver ohci_hcd_ar71xx_driver = {
.owner = THIS_MODULE,
},
};
MODULE_ALIAS("ar71xx-ohci");