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usb: gadget: Introduce usb_gadget_giveback_request()

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All USB peripheral controller drivers call completion routines directly.
This patch adds usb_gadget_giveback_request() which will be used instead
of direct invocation in the next patch. The goal here is to have a place
where common functionality can be added.

Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michal Sojka 2014-09-24 22:43:18 +02:00 committed by Greg Kroah-Hartman
parent 1b59fc7e3c
commit 3fc2aa5522
2 changed files with 24 additions and 0 deletions
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16
drivers/usb/gadget/udc/udc-core.c
View file

@ -106,6 +106,22 @@ EXPORT_SYMBOL_GPL(usb_gadget_unmap_request);
/* ------------------------------------------------------------------------- */
/**
* usb_gadget_giveback_request - give the request back to the gadget layer
* Context: in_interrupt()
*
* This is called by device controller drivers in order to return the
* completed request back to the gadget layer.
*/
void usb_gadget_giveback_request(struct usb_ep *ep,
struct usb_request *req)
{
req->complete(ep, req);
}
EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
/* ------------------------------------------------------------------------- */
static void usb_gadget_state_work(struct work_struct *work)
{
struct usb_gadget *gadget = work_to_gadget(work);

8
include/linux/usb/gadget.h
View file

@ -1023,6 +1023,14 @@ extern void usb_gadget_udc_reset(struct usb_gadget *gadget,
/*-------------------------------------------------------------------------*/
/* utility to give requests back to the gadget layer */
extern void usb_gadget_giveback_request(struct usb_ep *ep,
struct usb_request *req);
/*-------------------------------------------------------------------------*/
/* utility wrapping a simple endpoint selection policy */
extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,