213 	struct uvc_device *uvc = req->context;  in uvc_function_ep0_complete()  local
217 	if (uvc->event_setup_out) {  in uvc_function_ep0_complete()
218 		uvc->event_setup_out = 0;  in uvc_function_ep0_complete()
224 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_ep0_complete()
231 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_setup()  local
252 	uvc->event_setup_out = !(ctrl->bRequestType & USB_DIR_IN);  in uvc_function_setup()
253 	uvc->event_length = le16_to_cpu(ctrl->wLength);  in uvc_function_setup()
258 	v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_setup()
263 void uvc_function_setup_continue(struct uvc_device *uvc)  in uvc_function_setup_continue()  argument
265 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_function_setup_continue()
273 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_get_alt()  local
277 	if (interface == uvc->control_intf)  in uvc_function_get_alt()
279 	else if (interface != uvc->streaming_intf)  in uvc_function_get_alt()
282 		return uvc->video.ep->enabled ? 1 : 0;  in uvc_function_get_alt()
288 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_set_alt()  local
296 	if (interface == uvc->control_intf) {  in uvc_function_set_alt()
301 		usb_ep_disable(uvc->control_ep);  in uvc_function_set_alt()
303 		if (!uvc->control_ep->desc)  in uvc_function_set_alt()
304 			if (config_ep_by_speed(cdev->gadget, f, uvc->control_ep))  in uvc_function_set_alt()
307 		usb_ep_enable(uvc->control_ep);  in uvc_function_set_alt()
309 		if (uvc->state == UVC_STATE_DISCONNECTED) {  in uvc_function_set_alt()
313 			v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
315 			uvc->state = UVC_STATE_CONNECTED;  in uvc_function_set_alt()
321 	if (interface != uvc->streaming_intf)  in uvc_function_set_alt()
331 		if (uvc->state != UVC_STATE_STREAMING)  in uvc_function_set_alt()
334 		if (uvc->video.ep)  in uvc_function_set_alt()
335 			usb_ep_disable(uvc->video.ep);  in uvc_function_set_alt()
339 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
341 		uvc->state = UVC_STATE_CONNECTED;  in uvc_function_set_alt()
345 		if (uvc->state != UVC_STATE_CONNECTED)  in uvc_function_set_alt()
348 		if (!uvc->video.ep)  in uvc_function_set_alt()
352 		usb_ep_disable(uvc->video.ep);  in uvc_function_set_alt()
355 				&(uvc->func), uvc->video.ep);  in uvc_function_set_alt()
358 		usb_ep_enable(uvc->video.ep);  in uvc_function_set_alt()
362 		v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_set_alt()
373 	struct uvc_device *uvc = to_uvc(f);  in uvc_function_disable()  local
380 	v4l2_event_queue(&uvc->vdev, &v4l2_event);  in uvc_function_disable()
382 	uvc->state = UVC_STATE_DISCONNECTED;  in uvc_function_disable()
384 	usb_ep_disable(uvc->video.ep);  in uvc_function_disable()
385 	usb_ep_disable(uvc->control_ep);  in uvc_function_disable()
393 uvc_function_connect(struct uvc_device *uvc)  in uvc_function_connect()  argument
395 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_function_connect()
398 	if ((ret = usb_function_activate(&uvc->func)) < 0)  in uvc_function_connect()
403 uvc_function_disconnect(struct uvc_device *uvc)  in uvc_function_disconnect()  argument
405 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_function_disconnect()
408 	if ((ret = usb_function_deactivate(&uvc->func)) < 0)  in uvc_function_disconnect()
419 	struct uvc_device *uvc = dev_get_drvdata(dev);  in function_name_show()  local
421 	return sprintf(buf, "%s\n", uvc->func.fi->group.cg_item.ci_name);  in function_name_show()
427 uvc_register_video(struct uvc_device *uvc)  in uvc_register_video()  argument
429 	struct usb_composite_dev *cdev = uvc->func.config->cdev;  in uvc_register_video()
433 	uvc->vdev.v4l2_dev = &uvc->v4l2_dev;  in uvc_register_video()
434 	uvc->vdev.fops = &uvc_v4l2_fops;  in uvc_register_video()
435 	uvc->vdev.ioctl_ops = &uvc_v4l2_ioctl_ops;  in uvc_register_video()
436 	uvc->vdev.release = video_device_release_empty;  in uvc_register_video()
437 	uvc->vdev.vfl_dir = VFL_DIR_TX;  in uvc_register_video()
438 	uvc->vdev.lock = &uvc->video.mutex;  in uvc_register_video()
439 	strlcpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name));  in uvc_register_video()
441 	video_set_drvdata(&uvc->vdev, uvc);  in uvc_register_video()
443 	ret = video_register_device(&uvc->vdev, VFL_TYPE_GRABBER, -1);  in uvc_register_video()
447 	ret = device_create_file(&uvc->vdev.dev, &dev_attr_function_name);  in uvc_register_video()
449 		video_unregister_device(&uvc->vdev);  in uvc_register_video()
474 uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed)  in uvc_copy_descriptors()  argument
492 		uvc_control_desc = uvc->desc.ss_control;  in uvc_copy_descriptors()
493 		uvc_streaming_cls = uvc->desc.ss_streaming;  in uvc_copy_descriptors()
498 		uvc_control_desc = uvc->desc.fs_control;  in uvc_copy_descriptors()
499 		uvc_streaming_cls = uvc->desc.hs_streaming;  in uvc_copy_descriptors()
505 		uvc_control_desc = uvc->desc.fs_control;  in uvc_copy_descriptors()
506 		uvc_streaming_cls = uvc->desc.fs_streaming;  in uvc_copy_descriptors()
575 	uvc_control_header->baInterfaceNr[0] = uvc->streaming_intf;  in uvc_copy_descriptors()
588 	uvc_streaming_header->bEndpointAddress = uvc->video.ep->address;  in uvc_copy_descriptors()
600 	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()
701 	uvc->control_intf = ret;  in uvc_function_bind()
707 	uvc->streaming_intf = ret;  in uvc_function_bind()
710 	f->fs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);  in uvc_function_bind()
717 		f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);  in uvc_function_bind()
725 		f->ss_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_SUPER);  in uvc_function_bind()
734 	uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);  in uvc_function_bind()
735 	uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);  in uvc_function_bind()
736 	if (uvc->control_req == NULL || uvc->control_buf == NULL) {  in uvc_function_bind()
741 	uvc->control_req->buf = uvc->control_buf;  in uvc_function_bind()
742 	uvc->control_req->complete = uvc_function_ep0_complete;  in uvc_function_bind()
743 	uvc->control_req->context = uvc;  in uvc_function_bind()
745 	if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {  in uvc_function_bind()
751 	ret = uvcg_video_init(&uvc->video);  in uvc_function_bind()
756 	ret = uvc_register_video(uvc);  in uvc_function_bind()
765 	v4l2_device_unregister(&uvc->v4l2_dev);  in uvc_function_bind()
767 	if (uvc->control_req)  in uvc_function_bind()
768 		usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);  in uvc_function_bind()
769 	kfree(uvc->control_buf);  in uvc_function_bind()
877 	struct uvc_device *uvc = to_uvc(f);  in uvc_free()  local
881 	kfree(uvc);  in uvc_free()
887 	struct uvc_device *uvc = to_uvc(f);  in uvc_unbind()  local
891 	device_remove_file(&uvc->vdev.dev, &dev_attr_function_name);  in uvc_unbind()
892 	video_unregister_device(&uvc->vdev);  in uvc_unbind()
893 	v4l2_device_unregister(&uvc->v4l2_dev);  in uvc_unbind()
895 	usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);  in uvc_unbind()
896 	kfree(uvc->control_buf);  in uvc_unbind()
903 	struct uvc_device *uvc;  in uvc_alloc()  local
907 	uvc = kzalloc(sizeof(*uvc), GFP_KERNEL);  in uvc_alloc()
908 	if (uvc == NULL)  in uvc_alloc()
911 	mutex_init(&uvc->video.mutex);  in uvc_alloc()
912 	uvc->state = UVC_STATE_DISCONNECTED;  in uvc_alloc()
932 	uvc->desc.fs_control = opts->fs_control;  in uvc_alloc()
933 	uvc->desc.ss_control = opts->ss_control;  in uvc_alloc()
934 	uvc->desc.fs_streaming = opts->fs_streaming;  in uvc_alloc()
935 	uvc->desc.hs_streaming = opts->hs_streaming;  in uvc_alloc()
936 	uvc->desc.ss_streaming = opts->ss_streaming;  in uvc_alloc()
941 	uvc->func.name = "uvc";  in uvc_alloc()
942 	uvc->func.bind = uvc_function_bind;  in uvc_alloc()
943 	uvc->func.unbind = uvc_unbind;  in uvc_alloc()
944 	uvc->func.get_alt = uvc_function_get_alt;  in uvc_alloc()
945 	uvc->func.set_alt = uvc_function_set_alt;  in uvc_alloc()
946 	uvc->func.disable = uvc_function_disable;  in uvc_alloc()
947 	uvc->func.setup = uvc_function_setup;  in uvc_alloc()
948 	uvc->func.free_func = uvc_free;  in uvc_alloc()
949 	uvc->func.bind_deactivated = true;  in uvc_alloc()
951 	return &uvc->func;  in uvc_alloc()
954 DECLARE_USB_FUNCTION_INIT(uvc, uvc_alloc_inst, uvc_alloc);