210 	struct uvc_device *uvc = req->context;  in uvc_function_ep0_complete()  local
214 	if (uvc->event_setup_out) {  in uvc_function_ep0_complete()
215 		uvc->event_setup_out = 0;  in uvc_function_ep0_complete()
221 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_ep0_complete()
228 	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()
251 	v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_setup()
256 void uvc_function_setup_continue(struct uvc_device *uvc)  in uvc_function_setup_continue()  argument
258 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_function_setup_continue()
266 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_get_alt()  local
270 	if (interface == uvc->control_intf)  in uvc_function_get_alt()
272 	else if (interface != uvc->streaming_intf)  in uvc_function_get_alt()
275 		return uvc->video.ep->enabled ? 1 : 0;  in uvc_function_get_alt()
281 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_set_alt()  local
289 	if (interface == uvc->control_intf) {  in uvc_function_set_alt()
294 		usb_ep_disable(uvc->control_ep);  in uvc_function_set_alt()
296 		if (!uvc->control_ep->desc)  in uvc_function_set_alt()
297 			if (config_ep_by_speed(cdev->gadget, f, uvc->control_ep))  in uvc_function_set_alt()
300 		usb_ep_enable(uvc->control_ep);  in uvc_function_set_alt()
302 		if (uvc->state == UVC_STATE_DISCONNECTED) {  in uvc_function_set_alt()
306 			v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
308 			uvc->state = UVC_STATE_CONNECTED;  in uvc_function_set_alt()
314 	if (interface != uvc->streaming_intf)  in uvc_function_set_alt()
324 		if (uvc->state != UVC_STATE_STREAMING)  in uvc_function_set_alt()
327 		if (uvc->video.ep)  in uvc_function_set_alt()
328 			usb_ep_disable(uvc->video.ep);  in uvc_function_set_alt()
332 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
334 		uvc->state = UVC_STATE_CONNECTED;  in uvc_function_set_alt()
338 		if (uvc->state != UVC_STATE_CONNECTED)  in uvc_function_set_alt()
341 		if (!uvc->video.ep)  in uvc_function_set_alt()
345 		usb_ep_disable(uvc->video.ep);  in uvc_function_set_alt()
348 				&(uvc->func), uvc->video.ep);  in uvc_function_set_alt()
351 		usb_ep_enable(uvc->video.ep);  in uvc_function_set_alt()
355 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
366 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_disable()  local
373 	v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_disable()
375 	uvc->state = UVC_STATE_DISCONNECTED;  in uvc_function_disable()
377 	usb_ep_disable(uvc->video.ep);  in uvc_function_disable()
378 	usb_ep_disable(uvc->control_ep);  in uvc_function_disable()
386 uvc_function_connect(struct uvc_device *uvc)  in uvc_function_connect()  argument
390 	if ((ret = usb_function_activate(&uvc->func)) < 0)  in uvc_function_connect()
391 		uvcg_info(&uvc->func, "UVC connect failed with %d\n", ret);  in uvc_function_connect()
395 uvc_function_disconnect(struct uvc_device *uvc)  in uvc_function_disconnect()  argument
399 	if ((ret = usb_function_deactivate(&uvc->func)) < 0)  in uvc_function_disconnect()
400 		uvcg_info(&uvc->func, "UVC disconnect failed with %d\n", ret);  in uvc_function_disconnect()
410 	struct uvc_device *uvc = dev_get_drvdata(dev);  in function_name_show()  local
412 	return sprintf(buf, "%s\n", uvc->func.fi->group.cg_item.ci_name);  in function_name_show()
418 uvc_register_video(struct uvc_device *uvc)  in uvc_register_video()  argument
420 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_register_video()
424 	memset(&uvc->vdev, 0, sizeof(uvc->vdev));  in uvc_register_video()
425 	uvc->vdev.v4l2_dev = &uvc->v4l2_dev;  in uvc_register_video()
426 	uvc->vdev.v4l2_dev->dev = &cdev->gadget->dev;  in uvc_register_video()
427 	uvc->vdev.fops = &uvc_v4l2_fops;  in uvc_register_video()
428 	uvc->vdev.ioctl_ops = &uvc_v4l2_ioctl_ops;  in uvc_register_video()
429 	uvc->vdev.release = video_device_release_empty;  in uvc_register_video()
430 	uvc->vdev.vfl_dir = VFL_DIR_TX;  in uvc_register_video()
431 	uvc->vdev.lock = &uvc->video.mutex;  in uvc_register_video()
432 	uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;  in uvc_register_video()
433 	strscpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));  in uvc_register_video()
435 	video_set_drvdata(&uvc->vdev, uvc);  in uvc_register_video()
437 	ret = video_register_device(&uvc->vdev, VFL_TYPE_VIDEO, -1);  in uvc_register_video()
441 	ret = device_create_file(&uvc->vdev.dev, &dev_attr_function_name);  in uvc_register_video()
443 		video_unregister_device(&uvc->vdev);  in uvc_register_video()
468 uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed)  in uvc_copy_descriptors()  argument
486 		uvc_control_desc = uvc->desc.ss_control;  in uvc_copy_descriptors()
487 		uvc_streaming_cls = uvc->desc.ss_streaming;  in uvc_copy_descriptors()
492 		uvc_control_desc = uvc->desc.fs_control;  in uvc_copy_descriptors()
493 		uvc_streaming_cls = uvc->desc.hs_streaming;  in uvc_copy_descriptors()
499 		uvc_control_desc = uvc->desc.fs_control;  in uvc_copy_descriptors()
500 		uvc_streaming_cls = uvc->desc.fs_streaming;  in uvc_copy_descriptors()
570 	uvc_control_header->baInterfaceNr[0] = uvc->streaming_intf;  in uvc_copy_descriptors()
583 	uvc_streaming_header->bEndpointAddress = uvc->video.ep->address;  in uvc_copy_descriptors()
595 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_bind()  local
664 	uvc->control_ep = ep;  in uvc_function_bind()
678 	uvc->video.ep = ep;  in uvc_function_bind()
680 	uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;  in uvc_function_bind()
681 	uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;  in uvc_function_bind()
682 	uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address;  in uvc_function_bind()
702 	uvc->control_intf = ret;  in uvc_function_bind()
709 	uvc->streaming_intf = ret;  in uvc_function_bind()
713 	f->fs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);  in uvc_function_bind()
720 		f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);  in uvc_function_bind()
728 		f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);  in uvc_function_bind()
737 	uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);  in uvc_function_bind()
738 	uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);  in uvc_function_bind()
739 	if (uvc->control_req == NULL || uvc->control_buf == NULL) {  in uvc_function_bind()
744 	uvc->control_req->buf = uvc->control_buf;  in uvc_function_bind()
745 	uvc->control_req->complete = uvc_function_ep0_complete;  in uvc_function_bind()
746 	uvc->control_req->context = uvc;  in uvc_function_bind()
748 	if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {  in uvc_function_bind()
754 	ret = uvcg_video_init(&uvc->video, uvc);  in uvc_function_bind()
759 	ret = uvc_register_video(uvc);  in uvc_function_bind()
768 	v4l2_device_unregister(&uvc->v4l2_dev);  in uvc_function_bind()
770 	if (uvc->control_req)  in uvc_function_bind()
771 		usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);  in uvc_function_bind()
772 	kfree(uvc->control_buf);  in uvc_function_bind()
888 	struct uvc_device *uvc = to_uvc(f);  in uvc_free()  local
891 	config_item_put(&uvc->header->item);  in uvc_free()
893 	kfree(uvc);  in uvc_free()
900 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_unbind()  local
901 	struct uvc_video *video = &uvc->video;  in uvc_function_unbind()
915 	if (uvc->func_connected) {  in uvc_function_unbind()
917 		wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,  in uvc_function_unbind()
918 				uvc->func_connected == false, msecs_to_jiffies(500));  in uvc_function_unbind()
922 	device_remove_file(&uvc->vdev.dev, &dev_attr_function_name);  in uvc_function_unbind()
923 	video_unregister_device(&uvc->vdev);  in uvc_function_unbind()
924 	v4l2_device_unregister(&uvc->v4l2_dev);  in uvc_function_unbind()
926 	if (uvc->func_connected) {  in uvc_function_unbind()
933 		wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,  in uvc_function_unbind()
934 				uvc->func_connected == false, msecs_to_jiffies(1000));  in uvc_function_unbind()
938 	usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);  in uvc_function_unbind()
939 	kfree(uvc->control_buf);  in uvc_function_unbind()
946 	struct uvc_device *uvc;  in uvc_alloc()  local
951 	uvc = kzalloc(sizeof(*uvc), GFP_KERNEL);  in uvc_alloc()
952 	if (uvc == NULL)  in uvc_alloc()
955 	mutex_init(&uvc->video.mutex);  in uvc_alloc()
956 	uvc->state = UVC_STATE_DISCONNECTED;  in uvc_alloc()
957 	init_waitqueue_head(&uvc->func_connected_queue);  in uvc_alloc()
977 	uvc->desc.fs_control = opts->fs_control;  in uvc_alloc()
978 	uvc->desc.ss_control = opts->ss_control;  in uvc_alloc()
979 	uvc->desc.fs_streaming = opts->fs_streaming;  in uvc_alloc()
980 	uvc->desc.hs_streaming = opts->hs_streaming;  in uvc_alloc()
981 	uvc->desc.ss_streaming = opts->ss_streaming;  in uvc_alloc()
997 	uvc->header = to_uvcg_streaming_header(h);  in uvc_alloc()
998 	if (!uvc->header->linked) {  in uvc_alloc()
1000 		kfree(uvc);  in uvc_alloc()
1008 	uvc->func.name = "uvc";  in uvc_alloc()
1009 	uvc->func.bind = uvc_function_bind;  in uvc_alloc()
1010 	uvc->func.unbind = uvc_function_unbind;  in uvc_alloc()
1011 	uvc->func.get_alt = uvc_function_get_alt;  in uvc_alloc()
1012 	uvc->func.set_alt = uvc_function_set_alt;  in uvc_alloc()
1013 	uvc->func.disable = uvc_function_disable;  in uvc_alloc()
1014 	uvc->func.setup = uvc_function_setup;  in uvc_alloc()
1015 	uvc->func.free_func = uvc_free;  in uvc_alloc()
1016 	uvc->func.bind_deactivated = true;  in uvc_alloc()
1018 	return &uvc->func;  in uvc_alloc()
1022 	kfree(uvc);  in uvc_alloc()
1026 DECLARE_USB_FUNCTION_INIT(uvc, uvc_alloc_inst, uvc_alloc);