301 	struct f_sourcesink		*ss = ep->driver_data;  in ss_alloc_ep_req()  local
303 	return alloc_ep_req(ep, len, ss->buflen);  in ss_alloc_ep_req()
337 	struct f_sourcesink	*ss = func_to_ss(f);  in sourcesink_bind()  local
349 	ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc);  in sourcesink_bind()
350 	if (!ss->in_ep) {  in sourcesink_bind()
357 	ss->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_sink_desc);  in sourcesink_bind()
358 	if (!ss->out_ep)  in sourcesink_bind()
362 	if (ss->isoc_interval < 1)  in sourcesink_bind()
363 		ss->isoc_interval = 1;  in sourcesink_bind()
364 	if (ss->isoc_interval > 16)  in sourcesink_bind()
365 		ss->isoc_interval = 16;  in sourcesink_bind()
366 	if (ss->isoc_mult > 2)  in sourcesink_bind()
367 		ss->isoc_mult = 2;  in sourcesink_bind()
368 	if (ss->isoc_maxburst > 15)  in sourcesink_bind()
369 		ss->isoc_maxburst = 15;  in sourcesink_bind()
372 	fs_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket > 1023 ?  in sourcesink_bind()
373 						1023 : ss->isoc_maxpacket;  in sourcesink_bind()
374 	fs_iso_source_desc.bInterval = ss->isoc_interval;  in sourcesink_bind()
375 	fs_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket > 1023 ?  in sourcesink_bind()
376 						1023 : ss->isoc_maxpacket;  in sourcesink_bind()
377 	fs_iso_sink_desc.bInterval = ss->isoc_interval;  in sourcesink_bind()
380 	ss->iso_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_source_desc);  in sourcesink_bind()
381 	if (!ss->iso_in_ep)  in sourcesink_bind()
384 	ss->iso_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_sink_desc);  in sourcesink_bind()
385 	if (!ss->iso_out_ep) {  in sourcesink_bind()
386 		usb_ep_autoconfig_release(ss->iso_in_ep);  in sourcesink_bind()
387 		ss->iso_in_ep = NULL;  in sourcesink_bind()
399 	if (ss->isoc_maxpacket > 1024)  in sourcesink_bind()
400 		ss->isoc_maxpacket = 1024;  in sourcesink_bind()
411 	hs_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket;  in sourcesink_bind()
412 	hs_iso_source_desc.wMaxPacketSize |= ss->isoc_mult << 11;  in sourcesink_bind()
413 	hs_iso_source_desc.bInterval = ss->isoc_interval;  in sourcesink_bind()
417 	hs_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket;  in sourcesink_bind()
418 	hs_iso_sink_desc.wMaxPacketSize |= ss->isoc_mult << 11;  in sourcesink_bind()
419 	hs_iso_sink_desc.bInterval = ss->isoc_interval;  in sourcesink_bind()
433 	ss_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket;  in sourcesink_bind()
434 	ss_iso_source_desc.bInterval = ss->isoc_interval;  in sourcesink_bind()
435 	ss_iso_source_comp_desc.bmAttributes = ss->isoc_mult;  in sourcesink_bind()
436 	ss_iso_source_comp_desc.bMaxBurst = ss->isoc_maxburst;  in sourcesink_bind()
437 	ss_iso_source_comp_desc.wBytesPerInterval = ss->isoc_maxpacket *  in sourcesink_bind()
438 		(ss->isoc_mult + 1) * (ss->isoc_maxburst + 1);  in sourcesink_bind()
442 	ss_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket;  in sourcesink_bind()
443 	ss_iso_sink_desc.bInterval = ss->isoc_interval;  in sourcesink_bind()
444 	ss_iso_sink_comp_desc.bmAttributes = ss->isoc_mult;  in sourcesink_bind()
445 	ss_iso_sink_comp_desc.bMaxBurst = ss->isoc_maxburst;  in sourcesink_bind()
446 	ss_iso_sink_comp_desc.wBytesPerInterval = ss->isoc_maxpacket *  in sourcesink_bind()
447 		(ss->isoc_mult + 1) * (ss->isoc_maxburst + 1);  in sourcesink_bind()
458 			f->name, ss->in_ep->name, ss->out_ep->name,  in sourcesink_bind()
459 			ss->iso_in_ep ? ss->iso_in_ep->name : "<none>",  in sourcesink_bind()
460 			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>");  in sourcesink_bind()
480 static int check_read_data(struct f_sourcesink *ss, struct usb_request *req)  in check_read_data()  argument
484 	struct usb_composite_dev *cdev = ss->function.config->cdev;  in check_read_data()
485 	int max_packet_size = le16_to_cpu(ss->out_ep->desc->wMaxPacketSize);  in check_read_data()
487 	if (ss->pattern == 2)  in check_read_data()
491 		switch (ss->pattern) {  in check_read_data()
512 		usb_ep_set_halt(ss->out_ep);  in check_read_data()
523 	struct f_sourcesink *ss = ep->driver_data;  in reinit_write_data()  local
525 	switch (ss->pattern) {  in reinit_write_data()
541 	struct f_sourcesink		*ss = ep->driver_data;  in source_sink_complete()  local
545 	if (!ss)  in source_sink_complete()
548 	cdev = ss->function.config->cdev;  in source_sink_complete()
553 		if (ep == ss->out_ep) {  in source_sink_complete()
554 			check_read_data(ss, req);  in source_sink_complete()
555 			if (ss->pattern != 2)  in source_sink_complete()
566 		if (ep == ss->out_ep)  in source_sink_complete()
567 			check_read_data(ss, req);  in source_sink_complete()
593 static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,  in source_sink_start_ep()  argument
604 				size = ss->isoc_maxpacket *  in source_sink_start_ep()
605 						(ss->isoc_mult + 1) *  in source_sink_start_ep()
606 						(ss->isoc_maxburst + 1);  in source_sink_start_ep()
609 				size = ss->isoc_maxpacket * (ss->isoc_mult + 1);  in source_sink_start_ep()
612 				size = ss->isoc_maxpacket > 1023 ?  in source_sink_start_ep()
613 						1023 : ss->isoc_maxpacket;  in source_sink_start_ep()
616 			ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;  in source_sink_start_ep()
619 			ep = is_in ? ss->in_ep : ss->out_ep;  in source_sink_start_ep()
629 		else if (ss->pattern != 2)  in source_sink_start_ep()
636 			cdev = ss->function.config->cdev;  in source_sink_start_ep()
650 static void disable_source_sink(struct f_sourcesink *ss)  in disable_source_sink()  argument
654 	cdev = ss->function.config->cdev;  in disable_source_sink()
655 	disable_endpoints(cdev, ss->in_ep, ss->out_ep, ss->iso_in_ep,  in disable_source_sink()
656 			ss->iso_out_ep);  in disable_source_sink()
657 	VDBG(cdev, "%s disabled\n", ss->function.name);  in disable_source_sink()
661 enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss,  in enable_source_sink()  argument
669 	ep = ss->in_ep;  in enable_source_sink()
670 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
676 	ep->driver_data = ss;  in enable_source_sink()
678 	result = source_sink_start_ep(ss, true, false, speed);  in enable_source_sink()
681 		ep = ss->in_ep;  in enable_source_sink()
687 	ep = ss->out_ep;  in enable_source_sink()
688 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
694 	ep->driver_data = ss;  in enable_source_sink()
696 	result = source_sink_start_ep(ss, false, false, speed);  in enable_source_sink()
699 		ep = ss->out_ep;  in enable_source_sink()
708 	ep = ss->iso_in_ep;  in enable_source_sink()
710 		result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
716 		ep->driver_data = ss;  in enable_source_sink()
718 		result = source_sink_start_ep(ss, true, true, speed);  in enable_source_sink()
721 			ep = ss->iso_in_ep;  in enable_source_sink()
729 	ep = ss->iso_out_ep;  in enable_source_sink()
731 		result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);  in enable_source_sink()
737 		ep->driver_data = ss;  in enable_source_sink()
739 		result = source_sink_start_ep(ss, false, true, speed);  in enable_source_sink()
746 	ss->cur_alt = alt;  in enable_source_sink()
748 	DBG(cdev, "%s enabled, alt intf %d\n", ss->function.name, alt);  in enable_source_sink()
755 	struct f_sourcesink		*ss = func_to_ss(f);  in sourcesink_set_alt()  local
758 	disable_source_sink(ss);  in sourcesink_set_alt()
759 	return enable_source_sink(cdev, ss, alt);  in sourcesink_set_alt()
764 	struct f_sourcesink		*ss = func_to_ss(f);  in sourcesink_get_alt()  local
766 	return ss->cur_alt;  in sourcesink_get_alt()
771 	struct f_sourcesink	*ss = func_to_ss(f);  in sourcesink_disable()  local
773 	disable_source_sink(ss);  in sourcesink_disable()
853 	struct f_sourcesink     *ss;  in source_sink_alloc_func()  local
856 	ss = kzalloc(sizeof(*ss), GFP_KERNEL);  in source_sink_alloc_func()
857 	if (!ss)  in source_sink_alloc_func()
866 	ss->pattern = ss_opts->pattern;  in source_sink_alloc_func()
867 	ss->isoc_interval = ss_opts->isoc_interval;  in source_sink_alloc_func()
868 	ss->isoc_maxpacket = ss_opts->isoc_maxpacket;  in source_sink_alloc_func()
869 	ss->isoc_mult = ss_opts->isoc_mult;  in source_sink_alloc_func()
870 	ss->isoc_maxburst = ss_opts->isoc_maxburst;  in source_sink_alloc_func()
871 	ss->buflen = ss_opts->bulk_buflen;  in source_sink_alloc_func()
873 	ss->function.name = "source/sink";  in source_sink_alloc_func()
874 	ss->function.bind = sourcesink_bind;  in source_sink_alloc_func()
875 	ss->function.set_alt = sourcesink_set_alt;  in source_sink_alloc_func()
876 	ss->function.get_alt = sourcesink_get_alt;  in source_sink_alloc_func()
877 	ss->function.disable = sourcesink_disable;  in source_sink_alloc_func()
878 	ss->function.setup = sourcesink_setup;  in source_sink_alloc_func()
879 	ss->function.strings = sourcesink_strings;  in source_sink_alloc_func()
881 	ss->function.free_func = sourcesink_free_func;  in source_sink_alloc_func()
883 	return &ss->function;  in source_sink_alloc_func()