238 static void sur40_process_video(struct sur40_state *sur40);
394 	struct sur40_state *sur40 = input_get_drvdata(input);  in sur40_open()  local
396 	dev_dbg(sur40->dev, "open\n");  in sur40_open()
397 	return sur40_init(sur40);  in sur40_open()
403 	struct sur40_state *sur40 = input_get_drvdata(input);  in sur40_close()  local
405 	dev_dbg(sur40->dev, "close\n");  in sur40_close()
457 	struct sur40_state *sur40 = input_get_drvdata(input);  in sur40_poll()  local
459 	struct sur40_header *header = &sur40->bulk_in_buffer->header;  in sur40_poll()
460 	struct sur40_blob *inblob = &sur40->bulk_in_buffer->blobs[0];  in sur40_poll()
462 	dev_dbg(sur40->dev, "poll\n");  in sur40_poll()
469 		result = usb_bulk_msg(sur40->usbdev,  in sur40_poll()
470 			usb_rcvbulkpipe(sur40->usbdev, sur40->bulk_in_epaddr),  in sur40_poll()
471 			sur40->bulk_in_buffer, sur40->bulk_in_size,  in sur40_poll()
474 		dev_dbg(sur40->dev, "received %d bytes\n", bulk_read);  in sur40_poll()
477 			dev_err(sur40->dev, "error in usb_bulk_read\n");  in sur40_poll()
484 			dev_err(sur40->dev, "transfer size mismatch\n");  in sur40_poll()
491 			dev_dbg(sur40->dev, "need %d blobs\n", need_blobs);  in sur40_poll()
507 		dev_dbg(sur40->dev, "received %d blobs\n", packet_blobs);  in sur40_poll()
515 			dev_dbg(sur40->dev, "processing blob\n");  in sur40_poll()
524 	sur40_process_video(sur40);  in sur40_poll()
528 static void sur40_process_video(struct sur40_state *sur40)  in sur40_process_video()  argument
531 	struct sur40_image_header *img = (void *)(sur40->bulk_in_buffer);  in sur40_process_video()
537 	if (!vb2_start_streaming_called(&sur40->queue))  in sur40_process_video()
541 	spin_lock(&sur40->qlock);  in sur40_process_video()
542 	if (list_empty(&sur40->buf_list)) {  in sur40_process_video()
543 		dev_dbg(sur40->dev, "buffer queue empty\n");  in sur40_process_video()
544 		spin_unlock(&sur40->qlock);  in sur40_process_video()
547 	new_buf = list_entry(sur40->buf_list.next, struct sur40_buffer, list);  in sur40_process_video()
549 	spin_unlock(&sur40->qlock);  in sur40_process_video()
551 	dev_dbg(sur40->dev, "buffer acquired\n");  in sur40_process_video()
554 	result = usb_bulk_msg(sur40->usbdev,  in sur40_process_video()
555 			usb_rcvbulkpipe(sur40->usbdev, VIDEO_ENDPOINT),  in sur40_process_video()
556 			sur40->bulk_in_buffer, sur40->bulk_in_size,  in sur40_process_video()
560 		dev_err(sur40->dev, "error in usb_bulk_read\n");  in sur40_process_video()
565 		dev_err(sur40->dev, "received %d bytes (%zd expected)\n",  in sur40_process_video()
571 		dev_err(sur40->dev, "image magic mismatch\n");  in sur40_process_video()
575 	if (le32_to_cpu(img->size) != sur40->pix_fmt.sizeimage) {  in sur40_process_video()
576 		dev_err(sur40->dev, "image size mismatch\n");  in sur40_process_video()
580 	dev_dbg(sur40->dev, "header acquired\n");  in sur40_process_video()
584 	result = usb_sg_init(&sgr, sur40->usbdev,  in sur40_process_video()
585 		usb_rcvbulkpipe(sur40->usbdev, VIDEO_ENDPOINT), 0,  in sur40_process_video()
586 		sgt->sgl, sgt->nents, sur40->pix_fmt.sizeimage, 0);  in sur40_process_video()
588 		dev_err(sur40->dev, "error %d in usb_sg_init\n", result);  in sur40_process_video()
594 		dev_err(sur40->dev, "error %d in usb_sg_wait\n", sgr.status);  in sur40_process_video()
598 	dev_dbg(sur40->dev, "image acquired\n");  in sur40_process_video()
601 	if (sur40->sequence == -1)  in sur40_process_video()
606 	new_buf->vb.sequence = sur40->sequence++;  in sur40_process_video()
609 	dev_dbg(sur40->dev, "buffer marked done\n");  in sur40_process_video()
655 	struct sur40_state *sur40;  in sur40_probe()  local
675 	sur40 = kzalloc(sizeof(struct sur40_state), GFP_KERNEL);  in sur40_probe()
676 	if (!sur40)  in sur40_probe()
686 	INIT_LIST_HEAD(&sur40->buf_list);  in sur40_probe()
687 	spin_lock_init(&sur40->qlock);  in sur40_probe()
688 	mutex_init(&sur40->lock);  in sur40_probe()
693 	usb_make_path(usbdev, sur40->phys, sizeof(sur40->phys));  in sur40_probe()
694 	strlcat(sur40->phys, "/input0", sizeof(sur40->phys));  in sur40_probe()
695 	input->phys = sur40->phys;  in sur40_probe()
705 	input_set_drvdata(input, sur40);  in sur40_probe()
714 	sur40->usbdev = usbdev;  in sur40_probe()
715 	sur40->dev = &interface->dev;  in sur40_probe()
716 	sur40->input = input;  in sur40_probe()
719 	sur40->bulk_in_size = usb_endpoint_maxp(endpoint);  in sur40_probe()
720 	sur40->bulk_in_epaddr = endpoint->bEndpointAddress;  in sur40_probe()
721 	sur40->bulk_in_buffer = kmalloc(sur40->bulk_in_size, GFP_KERNEL);  in sur40_probe()
722 	if (!sur40->bulk_in_buffer) {  in sur40_probe()
737 	snprintf(sur40->v4l2.name, sizeof(sur40->v4l2.name), "%s", DRIVER_LONG);  in sur40_probe()
738 	error = v4l2_device_register(sur40->dev, &sur40->v4l2);  in sur40_probe()
746 	sur40->queue = sur40_queue;  in sur40_probe()
747 	sur40->queue.drv_priv = sur40;  in sur40_probe()
748 	sur40->queue.lock = &sur40->lock;  in sur40_probe()
749 	sur40->queue.dev = sur40->dev;  in sur40_probe()
752 	error = vb2_queue_init(&sur40->queue);  in sur40_probe()
756 	sur40->pix_fmt = sur40_pix_format[0];  in sur40_probe()
757 	sur40->vdev = sur40_video_device;  in sur40_probe()
758 	sur40->vdev.v4l2_dev = &sur40->v4l2;  in sur40_probe()
759 	sur40->vdev.lock = &sur40->lock;  in sur40_probe()
760 	sur40->vdev.queue = &sur40->queue;  in sur40_probe()
761 	video_set_drvdata(&sur40->vdev, sur40);  in sur40_probe()
764 	v4l2_ctrl_handler_init(&sur40->hdl, 4);  in sur40_probe()
765 	sur40->v4l2.ctrl_handler = &sur40->hdl;  in sur40_probe()
766 	sur40->vsvideo = (SUR40_CONTRAST_DEF << 4) | SUR40_GAIN_DEF;  in sur40_probe()
768 	v4l2_ctrl_new_std(&sur40->hdl, &sur40_ctrl_ops, V4L2_CID_BRIGHTNESS,  in sur40_probe()
772 	v4l2_ctrl_new_std(&sur40->hdl, &sur40_ctrl_ops, V4L2_CID_CONTRAST,  in sur40_probe()
776 	v4l2_ctrl_new_std(&sur40->hdl, &sur40_ctrl_ops, V4L2_CID_GAIN,  in sur40_probe()
780 	v4l2_ctrl_new_std(&sur40->hdl, &sur40_ctrl_ops,  in sur40_probe()
784 	v4l2_ctrl_handler_setup(&sur40->hdl);  in sur40_probe()
786 	if (sur40->hdl.error) {  in sur40_probe()
789 		v4l2_ctrl_handler_free(&sur40->hdl);  in sur40_probe()
790 		error = sur40->hdl.error;  in sur40_probe()
794 	error = video_register_device(&sur40->vdev, VFL_TYPE_TOUCH, -1);  in sur40_probe()
802 	usb_set_intfdata(interface, sur40);  in sur40_probe()
808 	video_unregister_device(&sur40->vdev);  in sur40_probe()
810 	v4l2_device_unregister(&sur40->v4l2);  in sur40_probe()
812 	kfree(sur40->bulk_in_buffer);  in sur40_probe()
816 	kfree(sur40);  in sur40_probe()
824 	struct sur40_state *sur40 = usb_get_intfdata(interface);  in sur40_disconnect()  local
826 	v4l2_ctrl_handler_free(&sur40->hdl);  in sur40_disconnect()
827 	video_unregister_device(&sur40->vdev);  in sur40_disconnect()
828 	v4l2_device_unregister(&sur40->v4l2);  in sur40_disconnect()
830 	input_unregister_device(sur40->input);  in sur40_disconnect()
831 	kfree(sur40->bulk_in_buffer);  in sur40_disconnect()
832 	kfree(sur40);  in sur40_disconnect()
849 	struct sur40_state *sur40 = vb2_get_drv_priv(q);  in sur40_queue_setup()  local
855 		return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;  in sur40_queue_setup()
858 	sizes[0] = sur40->pix_fmt.sizeimage;  in sur40_queue_setup()
869 	struct sur40_state *sur40 = vb2_get_drv_priv(vb->vb2_queue);  in sur40_buffer_prepare()  local
870 	unsigned long size = sur40->pix_fmt.sizeimage;  in sur40_buffer_prepare()
873 		dev_err(&sur40->usbdev->dev, "buffer too small (%lu < %lu)\n",  in sur40_buffer_prepare()
887 	struct sur40_state *sur40 = vb2_get_drv_priv(vb->vb2_queue);  in sur40_buffer_queue()  local
890 	spin_lock(&sur40->qlock);  in sur40_buffer_queue()
891 	list_add_tail(&buf->list, &sur40->buf_list);  in sur40_buffer_queue()
892 	spin_unlock(&sur40->qlock);  in sur40_buffer_queue()
895 static void return_all_buffers(struct sur40_state *sur40,  in return_all_buffers()  argument
900 	spin_lock(&sur40->qlock);  in return_all_buffers()
901 	list_for_each_entry_safe(buf, node, &sur40->buf_list, list) {  in return_all_buffers()
905 	spin_unlock(&sur40->qlock);  in return_all_buffers()
916 	struct sur40_state *sur40 = vb2_get_drv_priv(vq);  in sur40_start_streaming()  local
918 	sur40->sequence = 0;  in sur40_start_streaming()
928 	struct sur40_state *sur40 = vb2_get_drv_priv(vq);  in sur40_stop_streaming()  local
930 	sur40->sequence = -1;  in sur40_stop_streaming()
933 	return_all_buffers(sur40, VB2_BUF_STATE_ERROR);  in sur40_stop_streaming()
940 	struct sur40_state *sur40 = video_drvdata(file);  in sur40_vidioc_querycap()  local
944 	usb_make_path(sur40->usbdev, cap->bus_info, sizeof(cap->bus_info));  in sur40_vidioc_querycap()
990 	struct sur40_state *sur40 = video_drvdata(file);  in sur40_vidioc_s_fmt()  local
994 		sur40->pix_fmt = sur40_pix_format[1];  in sur40_vidioc_s_fmt()
998 		sur40->pix_fmt = sur40_pix_format[0];  in sur40_vidioc_s_fmt()
1002 	f->fmt.pix = sur40->pix_fmt;  in sur40_vidioc_s_fmt()
1009 	struct sur40_state *sur40 = video_drvdata(file);  in sur40_vidioc_g_fmt()  local
1011 	f->fmt.pix = sur40->pix_fmt;  in sur40_vidioc_g_fmt()
1017 	struct sur40_state *sur40  = container_of(ctrl->handler,  in sur40_s_ctrl()  local
1019 	u8 value = sur40->vsvideo;  in sur40_s_ctrl()
1023 		sur40_set_irlevel(sur40, ctrl->val);  in sur40_s_ctrl()
1027 		sur40_set_vsvideo(sur40, value);  in sur40_s_ctrl()
1031 		sur40_set_vsvideo(sur40, value);  in sur40_s_ctrl()
1034 		sur40_set_preprocessor(sur40, ctrl->val);  in sur40_s_ctrl()
1067 	struct sur40_state *sur40 = video_drvdata(file);  in sur40_vidioc_enum_framesizes()  local
1074 	f->discrete.width  = sur40->pix_fmt.width;  in sur40_vidioc_enum_framesizes()
1075 	f->discrete.height = sur40->pix_fmt.height;  in sur40_vidioc_enum_framesizes()
1082 	struct sur40_state *sur40 = video_drvdata(file);  in sur40_vidioc_enum_frameintervals()  local
1086 		|| (f->width  != sur40->pix_fmt.width)  in sur40_vidioc_enum_frameintervals()
1087 		|| (f->height != sur40->pix_fmt.height))  in sur40_vidioc_enum_frameintervals()