207 	struct uvc_device *uvc = req->context;  in uvc_function_ep0_complete()  local
211 	if (uvc->event_setup_out) {  in uvc_function_ep0_complete()
212 		uvc->event_setup_out = 0;  in uvc_function_ep0_complete()
219 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_ep0_complete()
226 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_setup()  local
245 	uvc->event_setup_out = !(ctrl->bRequestType & USB_DIR_IN);  in uvc_function_setup()
246 	uvc->event_length = le16_to_cpu(ctrl->wLength);  in uvc_function_setup()
258 	if (interface == uvc->streaming_intf)  in uvc_function_setup()
261 	v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_setup()
266 void uvc_function_setup_continue(struct uvc_device *uvc)  in uvc_function_setup_continue()  argument
268 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_function_setup_continue()
276 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_get_alt()  local
280 	if (interface == uvc->control_intf)  in uvc_function_get_alt()
282 	else if (interface != uvc->streaming_intf)  in uvc_function_get_alt()
285 		return uvc->video.ep->enabled ? 1 : 0;  in uvc_function_get_alt()
291 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_set_alt()  local
299 	if (interface == uvc->control_intf) {  in uvc_function_set_alt()
303 		if (uvc->enable_interrupt_ep) {  in uvc_function_set_alt()
305 			usb_ep_disable(uvc->interrupt_ep);  in uvc_function_set_alt()
307 			if (!uvc->interrupt_ep->desc)  in uvc_function_set_alt()
309 						       uvc->interrupt_ep))  in uvc_function_set_alt()
312 			usb_ep_enable(uvc->interrupt_ep);  in uvc_function_set_alt()
315 		if (uvc->state == UVC_STATE_DISCONNECTED) {  in uvc_function_set_alt()
319 			v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
321 			uvc->state = UVC_STATE_CONNECTED;  in uvc_function_set_alt()
327 	if (interface != uvc->streaming_intf)  in uvc_function_set_alt()
337 		if (uvc->state != UVC_STATE_STREAMING)  in uvc_function_set_alt()
340 		if (uvc->video.ep)  in uvc_function_set_alt()
341 			usb_ep_disable(uvc->video.ep);  in uvc_function_set_alt()
345 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
347 		uvc->state = UVC_STATE_CONNECTED;  in uvc_function_set_alt()
351 		if (uvc->state != UVC_STATE_CONNECTED)  in uvc_function_set_alt()
354 		if (!uvc->video.ep)  in uvc_function_set_alt()
358 		usb_ep_disable(uvc->video.ep);  in uvc_function_set_alt()
361 				&(uvc->func), uvc->video.ep);  in uvc_function_set_alt()
364 		usb_ep_enable(uvc->video.ep);  in uvc_function_set_alt()
368 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
379 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_disable()  local
386 	v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_disable()
388 	uvc->state = UVC_STATE_DISCONNECTED;  in uvc_function_disable()
390 	usb_ep_disable(uvc->video.ep);  in uvc_function_disable()
391 	if (uvc->enable_interrupt_ep)  in uvc_function_disable()
392 		usb_ep_disable(uvc->interrupt_ep);  in uvc_function_disable()
400 uvc_function_connect(struct uvc_device *uvc)  in uvc_function_connect()  argument
404 	if ((ret = usb_function_activate(&uvc->func)) < 0)  in uvc_function_connect()
405 		uvcg_info(&uvc->func, "UVC connect failed with %d\n", ret);  in uvc_function_connect()
409 uvc_function_disconnect(struct uvc_device *uvc)  in uvc_function_disconnect()  argument
413 	if ((ret = usb_function_deactivate(&uvc->func)) < 0)  in uvc_function_disconnect()
414 		uvcg_info(&uvc->func, "UVC disconnect failed with %d\n", ret);  in uvc_function_disconnect()
424 	struct uvc_device *uvc = dev_get_drvdata(dev);  in function_name_show()  local
426 	return sprintf(buf, "%s\n", uvc->func.fi->group.cg_item.ci_name);  in function_name_show()
432 uvc_register_video(struct uvc_device *uvc)  in uvc_register_video()  argument
434 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_register_video()
438 	memset(&uvc->vdev, 0, sizeof(uvc->vdev));  in uvc_register_video()
439 	uvc->vdev.v4l2_dev = &uvc->v4l2_dev;  in uvc_register_video()
440 	uvc->vdev.v4l2_dev->dev = &cdev->gadget->dev;  in uvc_register_video()
441 	uvc->vdev.fops = &uvc_v4l2_fops;  in uvc_register_video()
442 	uvc->vdev.ioctl_ops = &uvc_v4l2_ioctl_ops;  in uvc_register_video()
443 	uvc->vdev.release = video_device_release_empty;  in uvc_register_video()
444 	uvc->vdev.vfl_dir = VFL_DIR_TX;  in uvc_register_video()
445 	uvc->vdev.lock = &uvc->video.mutex;  in uvc_register_video()
446 	uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;  in uvc_register_video()
447 	strscpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));  in uvc_register_video()
449 	video_set_drvdata(&uvc->vdev, uvc);  in uvc_register_video()
451 	ret = video_register_device(&uvc->vdev, VFL_TYPE_VIDEO, -1);  in uvc_register_video()
455 	ret = device_create_file(&uvc->vdev.dev, &dev_attr_function_name);  in uvc_register_video()
457 		video_unregister_device(&uvc->vdev);  in uvc_register_video()
501 uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed)  in uvc_copy_descriptors()  argument
520 		uvc_control_desc = uvc->desc.ss_control;  in uvc_copy_descriptors()
521 		uvc_streaming_cls = uvc->desc.ss_streaming;  in uvc_copy_descriptors()
526 		uvc_control_desc = uvc->desc.fs_control;  in uvc_copy_descriptors()
527 		uvc_streaming_cls = uvc->desc.hs_streaming;  in uvc_copy_descriptors()
533 		uvc_control_desc = uvc->desc.fs_control;  in uvc_copy_descriptors()
534 		uvc_streaming_cls = uvc->desc.fs_streaming;  in uvc_copy_descriptors()
563 	if (uvc->enable_interrupt_ep) {  in uvc_copy_descriptors()
580 	list_for_each_entry(xu, uvc->desc.extension_units, list) {  in uvc_copy_descriptors()
613 	list_for_each_entry(xu, uvc->desc.extension_units, list)  in uvc_copy_descriptors()
618 	uvc_control_header->baInterfaceNr[0] = uvc->streaming_intf;  in uvc_copy_descriptors()
620 	if (uvc->enable_interrupt_ep) {  in uvc_copy_descriptors()
634 	uvc_streaming_header->bEndpointAddress = uvc->video.ep->address;  in uvc_copy_descriptors()
646 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_bind()  local
717 		uvc->interrupt_ep = ep;  in uvc_function_bind()
720 	uvc->enable_interrupt_ep = opts->enable_interrupt_ep;  in uvc_function_bind()
727 	uvc->video.ep = ep;  in uvc_function_bind()
729 	uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;  in uvc_function_bind()
730 	uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address;  in uvc_function_bind()
766 	uvc->control_intf = ret;  in uvc_function_bind()
773 	uvc->streaming_intf = ret;  in uvc_function_bind()
777 	f->fs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);  in uvc_function_bind()
784 	f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);  in uvc_function_bind()
791 	f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);  in uvc_function_bind()
799 	uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);  in uvc_function_bind()
800 	uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);  in uvc_function_bind()
801 	if (uvc->control_req == NULL || uvc->control_buf == NULL) {  in uvc_function_bind()
806 	uvc->control_req->buf = uvc->control_buf;  in uvc_function_bind()
807 	uvc->control_req->complete = uvc_function_ep0_complete;  in uvc_function_bind()
808 	uvc->control_req->context = uvc;  in uvc_function_bind()
810 	if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {  in uvc_function_bind()
816 	ret = uvcg_video_init(&uvc->video, uvc);  in uvc_function_bind()
821 	ret = uvc_register_video(uvc);  in uvc_function_bind()
830 	v4l2_device_unregister(&uvc->v4l2_dev);  in uvc_function_bind()
832 	if (uvc->control_req)  in uvc_function_bind()
833 		usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);  in uvc_function_bind()
834 	kfree(uvc->control_buf);  in uvc_function_bind()
950 	struct uvc_device *uvc = to_uvc(f);  in uvc_free()  local
953 	config_item_put(&uvc->header->item);  in uvc_free()
955 	kfree(uvc);  in uvc_free()
962 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_unbind()  local
963 	struct uvc_video *video = &uvc->video;  in uvc_function_unbind()
977 	if (uvc->func_connected) {  in uvc_function_unbind()
979 		wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,  in uvc_function_unbind()
980 				uvc->func_connected == false, msecs_to_jiffies(500));  in uvc_function_unbind()
984 	device_remove_file(&uvc->vdev.dev, &dev_attr_function_name);  in uvc_function_unbind()
985 	video_unregister_device(&uvc->vdev);  in uvc_function_unbind()
986 	v4l2_device_unregister(&uvc->v4l2_dev);  in uvc_function_unbind()
988 	if (uvc->func_connected) {  in uvc_function_unbind()
995 		wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,  in uvc_function_unbind()
996 				uvc->func_connected == false, msecs_to_jiffies(1000));  in uvc_function_unbind()
1000 	usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);  in uvc_function_unbind()
1001 	kfree(uvc->control_buf);  in uvc_function_unbind()
1008 	struct uvc_device *uvc;  in uvc_alloc()  local
1013 	uvc = kzalloc(sizeof(*uvc), GFP_KERNEL);  in uvc_alloc()
1014 	if (uvc == NULL)  in uvc_alloc()
1017 	mutex_init(&uvc->video.mutex);  in uvc_alloc()
1018 	uvc->state = UVC_STATE_DISCONNECTED;  in uvc_alloc()
1019 	init_waitqueue_head(&uvc->func_connected_queue);  in uvc_alloc()
1039 	uvc->desc.fs_control = opts->fs_control;  in uvc_alloc()
1040 	uvc->desc.ss_control = opts->ss_control;  in uvc_alloc()
1041 	uvc->desc.fs_streaming = opts->fs_streaming;  in uvc_alloc()
1042 	uvc->desc.hs_streaming = opts->hs_streaming;  in uvc_alloc()
1043 	uvc->desc.ss_streaming = opts->ss_streaming;  in uvc_alloc()
1059 	uvc->header = to_uvcg_streaming_header(h);  in uvc_alloc()
1060 	if (!uvc->header->linked) {  in uvc_alloc()
1062 		kfree(uvc);  in uvc_alloc()
1066 	uvc->desc.extension_units = &opts->extension_units;  in uvc_alloc()
1072 	uvc->func.name = "uvc";  in uvc_alloc()
1073 	uvc->func.bind = uvc_function_bind;  in uvc_alloc()
1074 	uvc->func.unbind = uvc_function_unbind;  in uvc_alloc()
1075 	uvc->func.get_alt = uvc_function_get_alt;  in uvc_alloc()
1076 	uvc->func.set_alt = uvc_function_set_alt;  in uvc_alloc()
1077 	uvc->func.disable = uvc_function_disable;  in uvc_alloc()
1078 	uvc->func.setup = uvc_function_setup;  in uvc_alloc()
1079 	uvc->func.free_func = uvc_free;  in uvc_alloc()
1080 	uvc->func.bind_deactivated = true;  in uvc_alloc()
1082 	return &uvc->func;  in uvc_alloc()
1086 	kfree(uvc);  in uvc_alloc()
1090 DECLARE_USB_FUNCTION_INIT(uvc, uvc_alloc_inst, uvc_alloc);