237 	struct fsg_dev		*fsg;  member
312 	if (common->fsg)  in __fsg_is_set()
347 static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)  in fsg_set_halt()  argument
351 	if (ep == fsg->bulk_in)  in fsg_set_halt()
353 	else if (ep == fsg->bulk_out)  in fsg_set_halt()
357 	DBG(fsg, "%s set halt\n", name);  in fsg_set_halt()
460 	struct fsg_dev		*fsg = fsg_from_func(f);  in fsg_setup()  local
461 	struct usb_request	*req = fsg->common->ep0req;  in fsg_setup()
466 	if (!fsg_is_set(fsg->common))  in fsg_setup()
469 	++fsg->common->ep0_req_tag;	/* Record arrival of a new request */  in fsg_setup()
472 	dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl));  in fsg_setup()
480 		if (w_index != fsg->interface_number || w_value != 0 ||  in fsg_setup()
488 		DBG(fsg, "bulk reset request\n");  in fsg_setup()
489 		raise_exception(fsg->common, FSG_STATE_PROTOCOL_RESET);  in fsg_setup()
496 		if (w_index != fsg->interface_number || w_value != 0 ||  in fsg_setup()
499 		VDBG(fsg, "get max LUN\n");  in fsg_setup()
500 		*(u8 *)req->buf = _fsg_common_get_max_lun(fsg->common);  in fsg_setup()
504 		return ep0_queue(fsg->common);  in fsg_setup()
507 	VDBG(fsg,  in fsg_setup()
520 static int start_transfer(struct fsg_dev *fsg, struct usb_ep *ep,  in start_transfer()  argument
525 	if (ep == fsg->bulk_in)  in start_transfer()
526 		dump_msg(fsg, "bulk-in", req->buf, req->length);  in start_transfer()
540 			WARNING(fsg, "error in submission: %s --> %d\n",  in start_transfer()
551 	if (start_transfer(common->fsg, common->fsg->bulk_in, bh->inreq))  in start_in_transfer()
561 	if (start_transfer(common->fsg, common->fsg->bulk_out, bh->outreq))  in start_out_transfer()
1451 static int halt_bulk_in_endpoint(struct fsg_dev *fsg)  in halt_bulk_in_endpoint()  argument
1455 	rc = fsg_set_halt(fsg, fsg->bulk_in);  in halt_bulk_in_endpoint()
1457 		VDBG(fsg, "delayed bulk-in endpoint halt\n");  in halt_bulk_in_endpoint()
1460 			WARNING(fsg, "usb_ep_set_halt -> %d\n", rc);  in halt_bulk_in_endpoint()
1468 		rc = usb_ep_set_halt(fsg->bulk_in);  in halt_bulk_in_endpoint()
1473 static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)  in wedge_bulk_in_endpoint()  argument
1477 	DBG(fsg, "bulk-in set wedge\n");  in wedge_bulk_in_endpoint()
1478 	rc = usb_ep_set_wedge(fsg->bulk_in);  in wedge_bulk_in_endpoint()
1480 		VDBG(fsg, "delayed bulk-in endpoint wedge\n");  in wedge_bulk_in_endpoint()
1483 			WARNING(fsg, "usb_ep_set_wedge -> %d\n", rc);  in wedge_bulk_in_endpoint()
1491 		rc = usb_ep_set_wedge(fsg->bulk_in);  in wedge_bulk_in_endpoint()
1564 			fsg_set_halt(common->fsg, common->fsg->bulk_out);  in finish_reply()
1565 			rc = halt_bulk_in_endpoint(common->fsg);  in finish_reply()
1601 				rc = halt_bulk_in_endpoint(common->fsg);  in finish_reply()
1629 				fsg_set_halt(common->fsg,  in finish_reply()
1630 					     common->fsg->bulk_out);  in finish_reply()
2166 static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)  in received_cbw()  argument
2170 	struct fsg_common	*common = fsg->common;  in received_cbw()
2173 	if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))  in received_cbw()
2180 		DBG(fsg, "invalid CBW: len %u sig 0x%x\n",  in received_cbw()
2195 		wedge_bulk_in_endpoint(fsg);  in received_cbw()
2196 		set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);  in received_cbw()
2204 		DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "  in received_cbw()
2213 			fsg_set_halt(fsg, fsg->bulk_out);  in received_cbw()
2214 			halt_bulk_in_endpoint(fsg);  in received_cbw()
2266 	rc = fsg_is_set(common) ? received_cbw(common->fsg, bh) : -EIO;  in get_next_command()
2288 	struct fsg_dev *fsg;  in do_set_interface()  local
2296 	if (common->fsg) {  in do_set_interface()
2297 		fsg = common->fsg;  in do_set_interface()
2303 				usb_ep_free_request(fsg->bulk_in, bh->inreq);  in do_set_interface()
2307 				usb_ep_free_request(fsg->bulk_out, bh->outreq);  in do_set_interface()
2313 		if (fsg->bulk_in_enabled) {  in do_set_interface()
2314 			usb_ep_disable(fsg->bulk_in);  in do_set_interface()
2315 			fsg->bulk_in_enabled = 0;  in do_set_interface()
2317 		if (fsg->bulk_out_enabled) {  in do_set_interface()
2318 			usb_ep_disable(fsg->bulk_out);  in do_set_interface()
2319 			fsg->bulk_out_enabled = 0;  in do_set_interface()
2322 		common->fsg = NULL;  in do_set_interface()
2330 	common->fsg = new_fsg;  in do_set_interface()
2331 	fsg = common->fsg;  in do_set_interface()
2334 	rc = config_ep_by_speed(common->gadget, &(fsg->function), fsg->bulk_in);  in do_set_interface()
2337 	rc = usb_ep_enable(fsg->bulk_in);  in do_set_interface()
2340 	fsg->bulk_in->driver_data = common;  in do_set_interface()
2341 	fsg->bulk_in_enabled = 1;  in do_set_interface()
2343 	rc = config_ep_by_speed(common->gadget, &(fsg->function),  in do_set_interface()
2344 				fsg->bulk_out);  in do_set_interface()
2347 	rc = usb_ep_enable(fsg->bulk_out);  in do_set_interface()
2350 	fsg->bulk_out->driver_data = common;  in do_set_interface()
2351 	fsg->bulk_out_enabled = 1;  in do_set_interface()
2352 	common->bulk_out_maxpacket = usb_endpoint_maxp(fsg->bulk_out->desc);  in do_set_interface()
2353 	clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);  in do_set_interface()
2359 		rc = alloc_request(common, fsg->bulk_in, &bh->inreq);  in do_set_interface()
2362 		rc = alloc_request(common, fsg->bulk_out, &bh->outreq);  in do_set_interface()
2384 	struct fsg_dev *fsg = fsg_from_func(f);  in fsg_set_alt()  local
2386 	__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, fsg);  in fsg_set_alt()
2392 	struct fsg_dev *fsg = fsg_from_func(f);  in fsg_disable()  local
2395 	if (fsg->bulk_in_enabled) {  in fsg_disable()
2396 		usb_ep_disable(fsg->bulk_in);  in fsg_disable()
2397 		fsg->bulk_in_enabled = 0;  in fsg_disable()
2399 	if (fsg->bulk_out_enabled) {  in fsg_disable()
2400 		usb_ep_disable(fsg->bulk_out);  in fsg_disable()
2401 		fsg->bulk_out_enabled = 0;  in fsg_disable()
2404 	__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL);  in fsg_disable()
2437 	if (likely(common->fsg)) {  in handle_exception()
2441 				usb_ep_dequeue(common->fsg->bulk_in, bh->inreq);  in handle_exception()
2443 				usb_ep_dequeue(common->fsg->bulk_out,  in handle_exception()
2452 		if (common->fsg->bulk_in_enabled)  in handle_exception()
2453 			usb_ep_fifo_flush(common->fsg->bulk_in);  in handle_exception()
2454 		if (common->fsg->bulk_out_enabled)  in handle_exception()
2455 			usb_ep_fifo_flush(common->fsg->bulk_out);  in handle_exception()
2507 				       &common->fsg->atomic_bitflags))  in handle_exception()
2508 			usb_ep_clear_halt(common->fsg->bulk_in);  in handle_exception()
3009 	struct fsg_dev		*fsg = fsg_from_func(f);  in fsg_bind()  local
3010 	struct fsg_common	*common = fsg->common;  in fsg_bind()
3027 		ret = fsg_common_set_cdev(fsg->common, c->cdev,  in fsg_bind()
3028 					  fsg->common->can_stall);  in fsg_bind()
3031 		fsg_common_set_inquiry_string(fsg->common, NULL, NULL);  in fsg_bind()
3049 	fsg->gadget = gadget;  in fsg_bind()
3056 	fsg->interface_number = i;  in fsg_bind()
3062 	fsg->bulk_in = ep;  in fsg_bind()
3067 	fsg->bulk_out = ep;  in fsg_bind()
3094 	ERROR(fsg, "unable to autoconfigure all endpoints\n");  in fsg_bind()
3098 	if (fsg->common->state != FSG_STATE_TERMINATED) {  in fsg_bind()
3099 		raise_exception(fsg->common, FSG_STATE_EXIT);  in fsg_bind()
3100 		wait_for_completion(&fsg->common->thread_notifier);  in fsg_bind()
3109 	struct fsg_dev		*fsg = fsg_from_func(f);  in fsg_unbind()  local
3110 	struct fsg_common	*common = fsg->common;  in fsg_unbind()
3112 	DBG(fsg, "unbind\n");  in fsg_unbind()
3113 	if (fsg->common->fsg == fsg) {  in fsg_unbind()
3114 		__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL);  in fsg_unbind()
3116 		wait_event(common->fsg_wait, common->fsg != fsg);  in fsg_unbind()
3119 	usb_free_all_descriptors(&fsg->function);  in fsg_unbind()
3523 	struct fsg_dev *fsg;  in fsg_free()  local
3526 	fsg = container_of(f, struct fsg_dev, function);  in fsg_free()
3533 	kfree(fsg);  in fsg_free()
3540 	struct fsg_dev *fsg;  in fsg_alloc()  local
3542 	fsg = kzalloc(sizeof(*fsg), GFP_KERNEL);  in fsg_alloc()
3543 	if (unlikely(!fsg))  in fsg_alloc()
3550 	fsg->function.name	= FSG_DRIVER_DESC;  in fsg_alloc()
3551 	fsg->function.bind	= fsg_bind;  in fsg_alloc()
3552 	fsg->function.unbind	= fsg_unbind;  in fsg_alloc()
3553 	fsg->function.setup	= fsg_setup;  in fsg_alloc()
3554 	fsg->function.set_alt	= fsg_set_alt;  in fsg_alloc()
3555 	fsg->function.disable	= fsg_disable;  in fsg_alloc()
3556 	fsg->function.free_func	= fsg_free;  in fsg_alloc()
3558 	fsg->common               = common;  in fsg_alloc()
3560 	return &fsg->function;  in fsg_alloc()