gadget/function/f_sourcesink.c

290 static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len)
292 	return alloc_ep_req(ep, len);
295 static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
299 	value = usb_ep_disable(ep);
301 		DBG(cdev, "disable %s --> %d\n", ep->name, value);
500 static void reinit_write_data(struct usb_ep *ep, struct usb_request *req)
504 	int max_packet_size = le16_to_cpu(ep->desc->wMaxPacketSize);
505 	struct f_sourcesink *ss = ep->driver_data;
520 static void source_sink_complete(struct usb_ep *ep, struct usb_request *req)
523 	struct f_sourcesink		*ss = ep->driver_data;
526 	/* driver_data will be null if ep has been disabled */
535 		if (ep == ss->out_ep) {
543 	case -ECONNABORTED:		/* hardware forced ep reset */
546 		VDBG(cdev, "%s gone (%d), %d/%d\n", ep->name, status,
548 		if (ep == ss->out_ep)
550 		free_ep_req(ep, req);
559 		DBG(cdev, "%s complete --> %d, %d/%d\n", ep->name,
567 	status = usb_ep_queue(ep, req, GFP_ATOMIC);
570 				ep->name, req->length, status);
571 		usb_ep_set_halt(ep);
579 	struct usb_ep		*ep;
599 		ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
602 		ep = is_in ? ss->in_ep : ss->out_ep;
608 		req = ss_alloc_ep_req(ep, size);
614 			reinit_write_data(ep, req);
618 		status = usb_ep_queue(ep, req, GFP_ATOMIC);
625 			      ep->name, status);
626 			free_ep_req(ep, req);
650 	struct usb_ep				*ep;
653 	ep = ss->in_ep;
654 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);
657 	result = usb_ep_enable(ep);
660 	ep->driver_data = ss;
665 		ep = ss->in_ep;
666 		usb_ep_disable(ep);
671 	ep = ss->out_ep;
672 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);
675 	result = usb_ep_enable(ep);
678 	ep->driver_data = ss;
683 		ep = ss->out_ep;
684 		usb_ep_disable(ep);
692 	ep = ss->iso_in_ep;
693 	if (ep) {
694 		result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);
697 		result = usb_ep_enable(ep);
700 		ep->driver_data = ss;
705 			ep = ss->iso_in_ep;
706 			if (ep)
707 				usb_ep_disable(ep);
713 	ep = ss->iso_out_ep;
714 	if (ep) {
715 		result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);
718 		result = usb_ep_enable(ep);
721 		ep->driver_data = ss;
725 			usb_ep_disable(ep);