236 	struct fsg_dev		*fsg;  member
311 	if (common->fsg)  in __fsg_is_set()
346 static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)  in fsg_set_halt()  argument
350 	if (ep == fsg->bulk_in)  in fsg_set_halt()
352 	else if (ep == fsg->bulk_out)  in fsg_set_halt()
356 	DBG(fsg, "%s set halt\n", name);  in fsg_set_halt()
459 	struct fsg_dev		*fsg = fsg_from_func(f);  in fsg_setup()  local
460 	struct usb_request	*req = fsg->common->ep0req;  in fsg_setup()
465 	if (!fsg_is_set(fsg->common))  in fsg_setup()
468 	++fsg->common->ep0_req_tag;	/* Record arrival of a new request */  in fsg_setup()
471 	dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl));  in fsg_setup()
479 		if (w_index != fsg->interface_number || w_value != 0 ||  in fsg_setup()
487 		DBG(fsg, "bulk reset request\n");  in fsg_setup()
488 		raise_exception(fsg->common, FSG_STATE_PROTOCOL_RESET);  in fsg_setup()
495 		if (w_index != fsg->interface_number || w_value != 0 ||  in fsg_setup()
498 		VDBG(fsg, "get max LUN\n");  in fsg_setup()
499 		*(u8 *)req->buf = _fsg_common_get_max_lun(fsg->common);  in fsg_setup()
503 		return ep0_queue(fsg->common);  in fsg_setup()
506 	VDBG(fsg,  in fsg_setup()
519 static int start_transfer(struct fsg_dev *fsg, struct usb_ep *ep,  in start_transfer()  argument
524 	if (ep == fsg->bulk_in)  in start_transfer()
525 		dump_msg(fsg, "bulk-in", req->buf, req->length);  in start_transfer()
539 			WARNING(fsg, "error in submission: %s --> %d\n",  in start_transfer()
550 	if (start_transfer(common->fsg, common->fsg->bulk_in, bh->inreq))  in start_in_transfer()
560 	if (start_transfer(common->fsg, common->fsg->bulk_out, bh->outreq))  in start_out_transfer()
1450 static int halt_bulk_in_endpoint(struct fsg_dev *fsg)  in halt_bulk_in_endpoint()  argument
1454 	rc = fsg_set_halt(fsg, fsg->bulk_in);  in halt_bulk_in_endpoint()
1456 		VDBG(fsg, "delayed bulk-in endpoint halt\n");  in halt_bulk_in_endpoint()
1459 			WARNING(fsg, "usb_ep_set_halt -> %d\n", rc);  in halt_bulk_in_endpoint()
1467 		rc = usb_ep_set_halt(fsg->bulk_in);  in halt_bulk_in_endpoint()
1472 static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)  in wedge_bulk_in_endpoint()  argument
1476 	DBG(fsg, "bulk-in set wedge\n");  in wedge_bulk_in_endpoint()
1477 	rc = usb_ep_set_wedge(fsg->bulk_in);  in wedge_bulk_in_endpoint()
1479 		VDBG(fsg, "delayed bulk-in endpoint wedge\n");  in wedge_bulk_in_endpoint()
1482 			WARNING(fsg, "usb_ep_set_wedge -> %d\n", rc);  in wedge_bulk_in_endpoint()
1490 		rc = usb_ep_set_wedge(fsg->bulk_in);  in wedge_bulk_in_endpoint()
1563 			fsg_set_halt(common->fsg, common->fsg->bulk_out);  in finish_reply()
1564 			rc = halt_bulk_in_endpoint(common->fsg);  in finish_reply()
1600 				rc = halt_bulk_in_endpoint(common->fsg);  in finish_reply()
1628 				fsg_set_halt(common->fsg,  in finish_reply()
1629 					     common->fsg->bulk_out);  in finish_reply()
2165 static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)  in received_cbw()  argument
2169 	struct fsg_common	*common = fsg->common;  in received_cbw()
2172 	if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))  in received_cbw()
2179 		DBG(fsg, "invalid CBW: len %u sig 0x%x\n",  in received_cbw()
2194 		wedge_bulk_in_endpoint(fsg);  in received_cbw()
2195 		set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);  in received_cbw()
2203 		DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "  in received_cbw()
2212 			fsg_set_halt(fsg, fsg->bulk_out);  in received_cbw()
2213 			halt_bulk_in_endpoint(fsg);  in received_cbw()
2265 	rc = fsg_is_set(common) ? received_cbw(common->fsg, bh) : -EIO;  in get_next_command()
2287 	struct fsg_dev *fsg;  in do_set_interface()  local
2295 	if (common->fsg) {  in do_set_interface()
2296 		fsg = common->fsg;  in do_set_interface()
2302 				usb_ep_free_request(fsg->bulk_in, bh->inreq);  in do_set_interface()
2306 				usb_ep_free_request(fsg->bulk_out, bh->outreq);  in do_set_interface()
2312 		if (fsg->bulk_in_enabled) {  in do_set_interface()
2313 			usb_ep_disable(fsg->bulk_in);  in do_set_interface()
2314 			fsg->bulk_in_enabled = 0;  in do_set_interface()
2316 		if (fsg->bulk_out_enabled) {  in do_set_interface()
2317 			usb_ep_disable(fsg->bulk_out);  in do_set_interface()
2318 			fsg->bulk_out_enabled = 0;  in do_set_interface()
2321 		common->fsg = NULL;  in do_set_interface()
2329 	common->fsg = new_fsg;  in do_set_interface()
2330 	fsg = common->fsg;  in do_set_interface()
2333 	rc = config_ep_by_speed(common->gadget, &(fsg->function), fsg->bulk_in);  in do_set_interface()
2336 	rc = usb_ep_enable(fsg->bulk_in);  in do_set_interface()
2339 	fsg->bulk_in->driver_data = common;  in do_set_interface()
2340 	fsg->bulk_in_enabled = 1;  in do_set_interface()
2342 	rc = config_ep_by_speed(common->gadget, &(fsg->function),  in do_set_interface()
2343 				fsg->bulk_out);  in do_set_interface()
2346 	rc = usb_ep_enable(fsg->bulk_out);  in do_set_interface()
2349 	fsg->bulk_out->driver_data = common;  in do_set_interface()
2350 	fsg->bulk_out_enabled = 1;  in do_set_interface()
2351 	common->bulk_out_maxpacket = usb_endpoint_maxp(fsg->bulk_out->desc);  in do_set_interface()
2352 	clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);  in do_set_interface()
2358 		rc = alloc_request(common, fsg->bulk_in, &bh->inreq);  in do_set_interface()
2361 		rc = alloc_request(common, fsg->bulk_out, &bh->outreq);  in do_set_interface()
2383 	struct fsg_dev *fsg = fsg_from_func(f);  in fsg_set_alt()  local
2385 	__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, fsg);  in fsg_set_alt()
2391 	struct fsg_dev *fsg = fsg_from_func(f);  in fsg_disable()  local
2394 	if (fsg->bulk_in_enabled) {  in fsg_disable()
2395 		usb_ep_disable(fsg->bulk_in);  in fsg_disable()
2396 		fsg->bulk_in_enabled = 0;  in fsg_disable()
2398 	if (fsg->bulk_out_enabled) {  in fsg_disable()
2399 		usb_ep_disable(fsg->bulk_out);  in fsg_disable()
2400 		fsg->bulk_out_enabled = 0;  in fsg_disable()
2403 	__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL);  in fsg_disable()
2436 	if (likely(common->fsg)) {  in handle_exception()
2440 				usb_ep_dequeue(common->fsg->bulk_in, bh->inreq);  in handle_exception()
2442 				usb_ep_dequeue(common->fsg->bulk_out,  in handle_exception()
2451 		if (common->fsg->bulk_in_enabled)  in handle_exception()
2452 			usb_ep_fifo_flush(common->fsg->bulk_in);  in handle_exception()
2453 		if (common->fsg->bulk_out_enabled)  in handle_exception()
2454 			usb_ep_fifo_flush(common->fsg->bulk_out);  in handle_exception()
2506 				       &common->fsg->atomic_bitflags))  in handle_exception()
2507 			usb_ep_clear_halt(common->fsg->bulk_in);  in handle_exception()
3012 	struct fsg_dev		*fsg = fsg_from_func(f);  in fsg_bind()  local
3013 	struct fsg_common	*common = fsg->common;  in fsg_bind()
3030 		ret = fsg_common_set_cdev(fsg->common, c->cdev,  in fsg_bind()
3031 					  fsg->common->can_stall);  in fsg_bind()
3034 		fsg_common_set_inquiry_string(fsg->common, NULL, NULL);  in fsg_bind()
3052 	fsg->gadget = gadget;  in fsg_bind()
3059 	fsg->interface_number = i;  in fsg_bind()
3065 	fsg->bulk_in = ep;  in fsg_bind()
3070 	fsg->bulk_out = ep;  in fsg_bind()
3097 	ERROR(fsg, "unable to autoconfigure all endpoints\n");  in fsg_bind()
3101 	if (fsg->common->state != FSG_STATE_TERMINATED) {  in fsg_bind()
3102 		raise_exception(fsg->common, FSG_STATE_EXIT);  in fsg_bind()
3103 		wait_for_completion(&fsg->common->thread_notifier);  in fsg_bind()
3112 	struct fsg_dev		*fsg = fsg_from_func(f);  in fsg_unbind()  local
3113 	struct fsg_common	*common = fsg->common;  in fsg_unbind()
3115 	DBG(fsg, "unbind\n");  in fsg_unbind()
3116 	if (fsg->common->fsg == fsg) {  in fsg_unbind()
3117 		__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL);  in fsg_unbind()
3119 		wait_event(common->fsg_wait, common->fsg != fsg);  in fsg_unbind()
3122 	usb_free_all_descriptors(&fsg->function);  in fsg_unbind()
3526 	struct fsg_dev *fsg;  in fsg_free()  local
3529 	fsg = container_of(f, struct fsg_dev, function);  in fsg_free()
3536 	kfree(fsg);  in fsg_free()
3543 	struct fsg_dev *fsg;  in fsg_alloc()  local
3545 	fsg = kzalloc(sizeof(*fsg), GFP_KERNEL);  in fsg_alloc()
3546 	if (unlikely(!fsg))  in fsg_alloc()
3553 	fsg->function.name	= FSG_DRIVER_DESC;  in fsg_alloc()
3554 	fsg->function.bind	= fsg_bind;  in fsg_alloc()
3555 	fsg->function.unbind	= fsg_unbind;  in fsg_alloc()
3556 	fsg->function.setup	= fsg_setup;  in fsg_alloc()
3557 	fsg->function.set_alt	= fsg_set_alt;  in fsg_alloc()
3558 	fsg->function.disable	= fsg_disable;  in fsg_alloc()
3559 	fsg->function.free_func	= fsg_free;  in fsg_alloc()
3561 	fsg->common               = common;  in fsg_alloc()
3563 	return &fsg->function;  in fsg_alloc()