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USB: OHCI: Export the OHCI hub control and status_data functions

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Platform drivers sometimes need to perform specific handling of hub
control requests and status data. Make this possible by exporting the
ohci_hub_control() and ohci_hub_status_data() functions which can then
be called from custom hub operations in the default case.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Laurent Pinchart
2014-04-16 18:00:09 +02:00
committed by Greg Kroah-Hartman
parent 0021a75a47
commit 42b59eba71
4 changed files with 12 additions and 23 deletions
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11
drivers/usb/host/ohci-at91.c
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@@ -46,9 +46,6 @@ static const char hcd_name[] = "ohci-atmel";
static struct hc_driver __read_mostly ohci_at91_hc_driver;
static int clocked;
static int (*orig_ohci_hub_control)(struct usb_hcd *hcd, u16 typeReq,
u16 wValue, u16 wIndex, char *buf, u16 wLength);
static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf);
extern int usb_disabled(void);
@@ -262,7 +259,7 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf)
{
struct at91_usbh_data *pdata = hcd->self.controller->platform_data;
int length = orig_ohci_hub_status_data(hcd, buf);
int length = ohci_hub_status_data(hcd, buf);
int port;
at91_for_each_port(port) {
@@ -340,8 +337,7 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
break;
}
ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex + 1,
buf, wLength);
ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength);
if (ret)
goto out;
@@ -690,9 +686,6 @@ static int __init ohci_at91_init(void)
* too easy.
*/
orig_ohci_hub_control = ohci_at91_hc_driver.hub_control;
orig_ohci_hub_status_data = ohci_at91_hc_driver.hub_status_data;
ohci_at91_hc_driver.hub_status_data = ohci_at91_hub_status_data;
ohci_at91_hc_driver.hub_control = ohci_at91_hub_control;