345 	struct f_sourcesink	*ss = func_to_ss(f);  in sourcesink_bind()  local
357 	ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc);  in sourcesink_bind()
358 	if (!ss->in_ep) {  in sourcesink_bind()
364 	ss->in_ep->driver_data = cdev;	/* claim */  in sourcesink_bind()
366 	ss->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_sink_desc);  in sourcesink_bind()
367 	if (!ss->out_ep)  in sourcesink_bind()
369 	ss->out_ep->driver_data = cdev;	/* claim */  in sourcesink_bind()
390 	ss->iso_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_source_desc);  in sourcesink_bind()
391 	if (!ss->iso_in_ep)  in sourcesink_bind()
393 	ss->iso_in_ep->driver_data = cdev;	/* claim */  in sourcesink_bind()
395 	ss->iso_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_sink_desc);  in sourcesink_bind()
396 	if (ss->iso_out_ep) {  in sourcesink_bind()
397 		ss->iso_out_ep->driver_data = cdev;	/* claim */  in sourcesink_bind()
399 		ss->iso_in_ep->driver_data = NULL;  in sourcesink_bind()
400 		ss->iso_in_ep = NULL;  in sourcesink_bind()
471 			f->name, ss->in_ep->name, ss->out_ep->name,  in sourcesink_bind()
472 			ss->iso_in_ep ? ss->iso_in_ep->name : "<none>",  in sourcesink_bind()
473 			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>");  in sourcesink_bind()
493 static int check_read_data(struct f_sourcesink *ss, struct usb_request *req)  in check_read_data()  argument
497 	struct usb_composite_dev *cdev = ss->function.config->cdev;  in check_read_data()
524 		usb_ep_set_halt(ss->out_ep);  in check_read_data()
551 	struct f_sourcesink		*ss = ep->driver_data;  in source_sink_complete()  local
555 	if (!ss)  in source_sink_complete()
558 	cdev = ss->function.config->cdev;  in source_sink_complete()
563 		if (ep == ss->out_ep) {  in source_sink_complete()
564 			check_read_data(ss, req);  in source_sink_complete()
576 		if (ep == ss->out_ep)  in source_sink_complete()
577 			check_read_data(ss, req);  in source_sink_complete()
603 static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,  in source_sink_start_ep()  argument
625 			ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;  in source_sink_start_ep()
628 			ep = is_in ? ss->in_ep : ss->out_ep;  in source_sink_start_ep()
645 			cdev = ss->function.config->cdev;  in source_sink_start_ep()
659 static void disable_source_sink(struct f_sourcesink *ss)  in disable_source_sink()  argument
663 	cdev = ss->function.config->cdev;  in disable_source_sink()
664 	disable_endpoints(cdev, ss->in_ep, ss->out_ep, ss->iso_in_ep,  in disable_source_sink()
665 			ss->iso_out_ep);  in disable_source_sink()
666 	VDBG(cdev, "%s disabled\n", ss->function.name);  in disable_source_sink()
670 enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss,  in enable_source_sink()  argument
678 	ep = ss->in_ep;  in enable_source_sink()
679 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
685 	ep->driver_data = ss;  in enable_source_sink()
687 	result = source_sink_start_ep(ss, true, false, speed);  in enable_source_sink()
690 		ep = ss->in_ep;  in enable_source_sink()
697 	ep = ss->out_ep;  in enable_source_sink()
698 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
704 	ep->driver_data = ss;  in enable_source_sink()
706 	result = source_sink_start_ep(ss, false, false, speed);  in enable_source_sink()
709 		ep = ss->out_ep;  in enable_source_sink()
719 	ep = ss->iso_in_ep;  in enable_source_sink()
721 		result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
727 		ep->driver_data = ss;  in enable_source_sink()
729 		result = source_sink_start_ep(ss, true, true, speed);  in enable_source_sink()
732 			ep = ss->iso_in_ep;  in enable_source_sink()
742 	ep = ss->iso_out_ep;  in enable_source_sink()
744 		result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
750 		ep->driver_data = ss;  in enable_source_sink()
752 		result = source_sink_start_ep(ss, false, true, speed);  in enable_source_sink()
760 	ss->cur_alt = alt;  in enable_source_sink()
762 	DBG(cdev, "%s enabled, alt intf %d\n", ss->function.name, alt);  in enable_source_sink()
769 	struct f_sourcesink		*ss = func_to_ss(f);  in sourcesink_set_alt()  local
772 	if (ss->in_ep->driver_data)  in sourcesink_set_alt()
773 		disable_source_sink(ss);  in sourcesink_set_alt()
774 	return enable_source_sink(cdev, ss, alt);  in sourcesink_set_alt()
779 	struct f_sourcesink		*ss = func_to_ss(f);  in sourcesink_get_alt()  local
781 	return ss->cur_alt;  in sourcesink_get_alt()
786 	struct f_sourcesink	*ss = func_to_ss(f);  in sourcesink_disable()  local
788 	disable_source_sink(ss);  in sourcesink_disable()
868 	struct f_sourcesink     *ss;  in source_sink_alloc_func()  local
871 	ss = kzalloc(sizeof(*ss), GFP_KERNEL);  in source_sink_alloc_func()
872 	if (!ss)  in source_sink_alloc_func()
888 	ss->function.name = "source/sink";  in source_sink_alloc_func()
889 	ss->function.bind = sourcesink_bind;  in source_sink_alloc_func()
890 	ss->function.set_alt = sourcesink_set_alt;  in source_sink_alloc_func()
891 	ss->function.get_alt = sourcesink_get_alt;  in source_sink_alloc_func()
892 	ss->function.disable = sourcesink_disable;  in source_sink_alloc_func()
893 	ss->function.setup = sourcesink_setup;  in source_sink_alloc_func()
894 	ss->function.strings = sourcesink_strings;  in source_sink_alloc_func()
896 	ss->function.free_func = sourcesink_free_func;  in source_sink_alloc_func()
898 	return &ss->function;  in source_sink_alloc_func()