From 3fc2aa5522ab958374d93ef5d2e12df7ee233c91 Mon Sep 17 00:00:00 2001 From: Michal Sojka Date: Wed, 24 Sep 2014 22:43:18 +0200 Subject: [PATCH] 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 Acked-by: Felipe Balbi Tested-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/udc/udc-core.c | 16 ++++++++++++++++ include/linux/usb/gadget.h | 8 ++++++++ 2 files changed, 24 insertions(+) diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c index ad1ceac..16d3f6f 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 d188114..522cafe 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 *, -- 2.7.4