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| author | Michal Sojka <sojka@merica.cz> | 2014-09-24 22:43:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-25 16:58:17 +0200 |
| commit | 3fc2aa5522ab958374d93ef5d2e12df7ee233c91 (patch) | |
| tree | 65ffb2f11379a88d4b7aee17e47496c0677b1e61 | |
| parent | 1b59fc7e3cda3f626204cadda8bb9b7d15f4f55b (diff) | |
| download | linux-3fc2aa5522ab958374d93ef5d2e12df7ee233c91.tar.gz linux-3fc2aa5522ab958374d93ef5d2e12df7ee233c91.tar.bz2 linux-3fc2aa5522ab958374d93ef5d2e12df7ee233c91.zip | |
usb: gadget: Introduce usb_gadget_giveback_request()
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>
| -rw-r--r-- | drivers/usb/gadget/udc/udc-core.c | 16 | ||||
| -rw-r--r-- | include/linux/usb/gadget.h | 8 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c index ad1ceac15468..16d3f6fedd1c 100644 --- a/drivers/usb/gadget/udc/udc-core.c +++ b/drivers/usb/gadget/udc/udc-core.c @@ -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); diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index d18811433324..522cafe26790 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -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 *, |