158 static int uvc_v4l2_try_format(struct uvc_streaming *stream,  in uvc_v4l2_try_format()  argument
171 	if (fmt->type != stream->type)  in uvc_v4l2_try_format()
175 	uvc_dbg(stream->dev, FORMAT, "Trying format 0x%08x (%c%c%c%c): %ux%u\n",  in uvc_v4l2_try_format()
183 	for (i = 0; i < stream->nformats; ++i) {  in uvc_v4l2_try_format()
184 		format = &stream->format[i];  in uvc_v4l2_try_format()
189 	if (i == stream->nformats) {  in uvc_v4l2_try_format()
190 		format = stream->def_format;  in uvc_v4l2_try_format()
218 		uvc_dbg(stream->dev, FORMAT, "Unsupported size %ux%u\n",  in uvc_v4l2_try_format()
225 	uvc_dbg(stream->dev, FORMAT,  in uvc_v4l2_try_format()
248 	mutex_lock(&stream->mutex);  in uvc_v4l2_try_format()
249 	if (stream->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS)  in uvc_v4l2_try_format()
251 			stream->ctrl.dwMaxVideoFrameSize;  in uvc_v4l2_try_format()
254 	ret = uvc_probe_video(stream, probe);  in uvc_v4l2_try_format()
255 	mutex_unlock(&stream->mutex);  in uvc_v4l2_try_format()
264 	for (i = 0; i < stream->nformats; ++i) {  in uvc_v4l2_try_format()
265 		if (probe->bFormatIndex == stream->format[i].index) {  in uvc_v4l2_try_format()
266 			format = &stream->format[i];  in uvc_v4l2_try_format()
271 	if (i == stream->nformats)  in uvc_v4l2_try_format()
272 		uvc_dbg(stream->dev, FORMAT,  in uvc_v4l2_try_format()
284 		uvc_dbg(stream->dev, FORMAT,  in uvc_v4l2_try_format()
307 static int uvc_v4l2_get_format(struct uvc_streaming *stream,  in uvc_v4l2_get_format()  argument
314 	if (fmt->type != stream->type)  in uvc_v4l2_get_format()
317 	mutex_lock(&stream->mutex);  in uvc_v4l2_get_format()
318 	format = stream->cur_format;  in uvc_v4l2_get_format()
319 	frame = stream->cur_frame;  in uvc_v4l2_get_format()
331 	fmt->fmt.pix.sizeimage = stream->ctrl.dwMaxVideoFrameSize;  in uvc_v4l2_get_format()
337 	mutex_unlock(&stream->mutex);  in uvc_v4l2_get_format()
341 static int uvc_v4l2_set_format(struct uvc_streaming *stream,  in uvc_v4l2_set_format()  argument
349 	if (fmt->type != stream->type)  in uvc_v4l2_set_format()
352 	ret = uvc_v4l2_try_format(stream, fmt, &probe, &format, &frame);  in uvc_v4l2_set_format()
356 	mutex_lock(&stream->mutex);  in uvc_v4l2_set_format()
358 	if (uvc_queue_allocated(&stream->queue)) {  in uvc_v4l2_set_format()
363 	stream->ctrl = probe;  in uvc_v4l2_set_format()
364 	stream->cur_format = format;  in uvc_v4l2_set_format()
365 	stream->cur_frame = frame;  in uvc_v4l2_set_format()
368 	mutex_unlock(&stream->mutex);  in uvc_v4l2_set_format()
372 static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,  in uvc_v4l2_get_streamparm()  argument
377 	if (parm->type != stream->type)  in uvc_v4l2_get_streamparm()
380 	mutex_lock(&stream->mutex);  in uvc_v4l2_get_streamparm()
381 	numerator = stream->ctrl.dwFrameInterval;  in uvc_v4l2_get_streamparm()
382 	mutex_unlock(&stream->mutex);  in uvc_v4l2_get_streamparm()
388 	parm->type = stream->type;  in uvc_v4l2_get_streamparm()
390 	if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {  in uvc_v4l2_get_streamparm()
407 static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,  in uvc_v4l2_set_streamparm()  argument
418 	if (parm->type != stream->type)  in uvc_v4l2_set_streamparm()
428 	uvc_dbg(stream->dev, FORMAT, "Setting frame interval to %u/%u (%u)\n",  in uvc_v4l2_set_streamparm()
431 	mutex_lock(&stream->mutex);  in uvc_v4l2_set_streamparm()
433 	if (uvc_queue_streaming(&stream->queue)) {  in uvc_v4l2_set_streamparm()
434 		mutex_unlock(&stream->mutex);  in uvc_v4l2_set_streamparm()
438 	format = stream->cur_format;  in uvc_v4l2_set_streamparm()
439 	frame = stream->cur_frame;  in uvc_v4l2_set_streamparm()
440 	probe = stream->ctrl;  in uvc_v4l2_set_streamparm()
448 		if (&format->frame[i] == stream->cur_frame)  in uvc_v4l2_set_streamparm()
451 		if (format->frame[i].wWidth != stream->cur_frame->wWidth ||  in uvc_v4l2_set_streamparm()
452 		    format->frame[i].wHeight != stream->cur_frame->wHeight)  in uvc_v4l2_set_streamparm()
467 	ret = uvc_probe_video(stream, &probe);  in uvc_v4l2_set_streamparm()
469 		mutex_unlock(&stream->mutex);  in uvc_v4l2_set_streamparm()
473 	stream->ctrl = probe;  in uvc_v4l2_set_streamparm()
474 	stream->cur_frame = frame;  in uvc_v4l2_set_streamparm()
475 	mutex_unlock(&stream->mutex);  in uvc_v4l2_set_streamparm()
528 	if (atomic_inc_return(&handle->stream->active) != 1) {  in uvc_acquire_privileges()
529 		atomic_dec(&handle->stream->active);  in uvc_acquire_privileges()
540 		atomic_dec(&handle->stream->active);  in uvc_dismiss_privileges()
556 	struct uvc_streaming *stream;  in uvc_v4l2_open()  local
560 	stream = video_drvdata(file);  in uvc_v4l2_open()
561 	uvc_dbg(stream->dev, CALLS, "%s\n", __func__);  in uvc_v4l2_open()
563 	ret = usb_autopm_get_interface(stream->dev->intf);  in uvc_v4l2_open()
570 		usb_autopm_put_interface(stream->dev->intf);  in uvc_v4l2_open()
574 	mutex_lock(&stream->dev->lock);  in uvc_v4l2_open()
575 	if (stream->dev->users == 0) {  in uvc_v4l2_open()
576 		ret = uvc_status_start(stream->dev, GFP_KERNEL);  in uvc_v4l2_open()
578 			mutex_unlock(&stream->dev->lock);  in uvc_v4l2_open()
579 			usb_autopm_put_interface(stream->dev->intf);  in uvc_v4l2_open()
585 	stream->dev->users++;  in uvc_v4l2_open()
586 	mutex_unlock(&stream->dev->lock);  in uvc_v4l2_open()
588 	v4l2_fh_init(&handle->vfh, &stream->vdev);  in uvc_v4l2_open()
590 	handle->chain = stream->chain;  in uvc_v4l2_open()
591 	handle->stream = stream;  in uvc_v4l2_open()
601 	struct uvc_streaming *stream = handle->stream;  in uvc_v4l2_release()  local
603 	uvc_dbg(stream->dev, CALLS, "%s\n", __func__);  in uvc_v4l2_release()
607 		uvc_queue_release(&stream->queue);  in uvc_v4l2_release()
616 	mutex_lock(&stream->dev->lock);  in uvc_v4l2_release()
617 	if (--stream->dev->users == 0)  in uvc_v4l2_release()
618 		uvc_status_stop(stream->dev);  in uvc_v4l2_release()
619 	mutex_unlock(&stream->dev->lock);  in uvc_v4l2_release()
621 	usb_autopm_put_interface(stream->dev->intf);  in uvc_v4l2_release()
630 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_querycap()  local
633 	strscpy(cap->card, handle->stream->dev->name, sizeof(cap->card));  in uvc_ioctl_querycap()
634 	usb_make_path(stream->dev->udev, cap->bus_info, sizeof(cap->bus_info));  in uvc_ioctl_querycap()
641 static int uvc_ioctl_enum_fmt(struct uvc_streaming *stream,  in uvc_ioctl_enum_fmt()  argument
648 	if (fmt->type != stream->type || fmt->index >= stream->nformats)  in uvc_ioctl_enum_fmt()
655 	format = &stream->format[fmt->index];  in uvc_ioctl_enum_fmt()
669 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_enum_fmt_vid_cap()  local
671 	return uvc_ioctl_enum_fmt(stream, fmt);  in uvc_ioctl_enum_fmt_vid_cap()
678 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_enum_fmt_vid_out()  local
680 	return uvc_ioctl_enum_fmt(stream, fmt);  in uvc_ioctl_enum_fmt_vid_out()
687 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_g_fmt_vid_cap()  local
689 	return uvc_v4l2_get_format(stream, fmt);  in uvc_ioctl_g_fmt_vid_cap()
696 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_g_fmt_vid_out()  local
698 	return uvc_v4l2_get_format(stream, fmt);  in uvc_ioctl_g_fmt_vid_out()
705 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_s_fmt_vid_cap()  local
712 	return uvc_v4l2_set_format(stream, fmt);  in uvc_ioctl_s_fmt_vid_cap()
719 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_s_fmt_vid_out()  local
726 	return uvc_v4l2_set_format(stream, fmt);  in uvc_ioctl_s_fmt_vid_out()
733 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_try_fmt_vid_cap()  local
736 	return uvc_v4l2_try_format(stream, fmt, &probe, NULL, NULL);  in uvc_ioctl_try_fmt_vid_cap()
743 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_try_fmt_vid_out()  local
746 	return uvc_v4l2_try_format(stream, fmt, &probe, NULL, NULL);  in uvc_ioctl_try_fmt_vid_out()
753 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_reqbufs()  local
760 	mutex_lock(&stream->mutex);  in uvc_ioctl_reqbufs()
761 	ret = uvc_request_buffers(&stream->queue, rb);  in uvc_ioctl_reqbufs()
762 	mutex_unlock(&stream->mutex);  in uvc_ioctl_reqbufs()
776 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_querybuf()  local
781 	return uvc_query_buffer(&stream->queue, buf);  in uvc_ioctl_querybuf()
787 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_qbuf()  local
792 	return uvc_queue_buffer(&stream->queue,  in uvc_ioctl_qbuf()
793 				stream->vdev.v4l2_dev->mdev, buf);  in uvc_ioctl_qbuf()
800 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_expbuf()  local
805 	return uvc_export_buffer(&stream->queue, exp);  in uvc_ioctl_expbuf()
811 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_dqbuf()  local
816 	return uvc_dequeue_buffer(&stream->queue, buf,  in uvc_ioctl_dqbuf()
824 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_create_bufs()  local
831 	return uvc_create_buffers(&stream->queue, cb);  in uvc_ioctl_create_bufs()
838 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_streamon()  local
844 	mutex_lock(&stream->mutex);  in uvc_ioctl_streamon()
845 	ret = uvc_queue_streamon(&stream->queue, type);  in uvc_ioctl_streamon()
846 	mutex_unlock(&stream->mutex);  in uvc_ioctl_streamon()
855 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_streamoff()  local
860 	mutex_lock(&stream->mutex);  in uvc_ioctl_streamoff()
861 	uvc_queue_streamoff(&stream->queue, type);  in uvc_ioctl_streamoff()
862 	mutex_unlock(&stream->mutex);  in uvc_ioctl_streamoff()
1141 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_g_selection()  local
1143 	if (sel->type != stream->type)  in uvc_ioctl_g_selection()
1149 		if (stream->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)  in uvc_ioctl_g_selection()
1154 		if (stream->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)  in uvc_ioctl_g_selection()
1163 	mutex_lock(&stream->mutex);  in uvc_ioctl_g_selection()
1164 	sel->r.width = stream->cur_frame->wWidth;  in uvc_ioctl_g_selection()
1165 	sel->r.height = stream->cur_frame->wHeight;  in uvc_ioctl_g_selection()
1166 	mutex_unlock(&stream->mutex);  in uvc_ioctl_g_selection()
1175 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_g_parm()  local
1177 	return uvc_v4l2_get_streamparm(stream, parm);  in uvc_ioctl_g_parm()
1184 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_s_parm()  local
1191 	return uvc_v4l2_set_streamparm(stream, parm);  in uvc_ioctl_s_parm()
1198 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_enum_framesizes()  local
1205 	for (i = 0; i < stream->nformats; i++) {  in uvc_ioctl_enum_framesizes()
1206 		if (stream->format[i].fcc == fsize->pixel_format) {  in uvc_ioctl_enum_framesizes()
1207 			format = &stream->format[i];  in uvc_ioctl_enum_framesizes()
1238 	struct uvc_streaming *stream = handle->stream;  in uvc_ioctl_enum_frameintervals()  local
1246 	for (i = 0; i < stream->nformats; i++) {  in uvc_ioctl_enum_frameintervals()
1247 		if (stream->format[i].fcc == fival->pixel_format) {  in uvc_ioctl_enum_frameintervals()
1248 			format = &stream->format[i];  in uvc_ioctl_enum_frameintervals()
1461 	struct uvc_streaming *stream = handle->stream;  in uvc_v4l2_read()  local
1463 	uvc_dbg(stream->dev, CALLS, "%s: not implemented\n", __func__);  in uvc_v4l2_read()
1470 	struct uvc_streaming *stream = handle->stream;  in uvc_v4l2_mmap()  local
1472 	uvc_dbg(stream->dev, CALLS, "%s\n", __func__);  in uvc_v4l2_mmap()
1474 	return uvc_queue_mmap(&stream->queue, vma);  in uvc_v4l2_mmap()
1480 	struct uvc_streaming *stream = handle->stream;  in uvc_v4l2_poll()  local
1482 	uvc_dbg(stream->dev, CALLS, "%s\n", __func__);  in uvc_v4l2_poll()
1484 	return uvc_queue_poll(&stream->queue, file, wait);  in uvc_v4l2_poll()
1493 	struct uvc_streaming *stream = handle->stream;  in uvc_v4l2_get_unmapped_area()  local
1495 	uvc_dbg(stream->dev, CALLS, "%s\n", __func__);  in uvc_v4l2_get_unmapped_area()
1497 	return uvc_queue_get_unmapped_area(&stream->queue, pgoff);  in uvc_v4l2_get_unmapped_area()