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Code Issues

ehci driver cleanup

Browse Source 
SVN-Revision: 13441
This commit is contained in:
Gabor Juhos 2008-11-30 11:07:22 +00:00
parent 043562037f
commit 05184c7c38
1 changed files with 21 additions and 41 deletions
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62
target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c
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@ -15,19 +15,15 @@
extern int usb_disabled(void);
static void ar71xx_start_ehci(struct platform_device *pdev)
{
}
static void ar71xx_stop_ehci(struct platform_device *pdev)
{
/*
* TODO: implement
*/
}
int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
struct usb_hcd **hcd_out,
struct platform_device *pdev)
static int usb_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;
@ -70,70 +66,56 @@ int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
goto err_release_region;
}
ar71xx_start_ehci(pdev);
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);
ar71xx_start_ehci(pdev);
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret)
goto err_stop_ehc;
goto err_iounmap;
return 0;
err_stop_ehc:
ar71xx_stop_ehci(pdev);
err_iounmap:
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_ehci_ar71xx_remove - shutdown processing for AR71xx-based 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.
*
*/
static void usb_ehci_ar71xx_remove(struct usb_hcd *hcd,
struct platform_device *pdev)
{
usb_remove_hcd(hcd);
ar71xx_stop_ehci(pdev);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
}
static const struct hc_driver ehci_ar71xx_hc_driver = {
.description = hcd_name,
.product_desc = "Atheros AR71xx built-in EHCI controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.description = hcd_name,
.product_desc = "Atheros AR71xx built-in EHCI controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
/*
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
/*
* basic lifecycle operations
*/
.reset = ehci_init,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
.reset = ehci_init,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
/*
* managing i/o requests and associated device resources
@ -145,7 +127,7 @@ static const struct hc_driver ehci_ar71xx_hc_driver = {
/*
* scheduling support
*/
.get_frame_number = ehci_get_frame,
.get_frame_number = ehci_get_frame,
/*
* root hub support
@ -181,11 +163,9 @@ static int ehci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
static struct platform_driver ehci_hcd_ar71xx_driver = {
.probe = ehci_hcd_ar71xx_drv_probe,
.remove = ehci_hcd_ar71xx_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "ar71xx-ehci",
.bus = &platform_bus_type
}
};
MODULE_ALIAS("ar71xx-ehci");
MODULE_ALIAS("platform:ar71xx-ehci");