[PATCH v4 13/36] [media] v4l2: add a frame timeout event

[Steve Longerbeam]

Add a new FRAME_TIMEOUT event to signal that a video capture or
output device has timed out waiting for reception or transmit
completion of a video frame.

Signed-off-by: Steve Longerbeam <steve_longerbeam at mentor.com>
---
 Documentation/media/uapi/v4l/vidioc-dqevent.rst | 5 +++++
 Documentation/media/videodev2.h.rst.exceptions  | 1 +
 include/uapi/linux/videodev2.h                  | 1 +
 3 files changed, 7 insertions(+)

diff --git a/Documentation/media/uapi/v4l/vidioc-dqevent.rst b/Documentation/media/uapi/v4l/vidioc-dqevent.rst
index 8d663a7..dd77d9b 100644
--- a/Documentation/media/uapi/v4l/vidioc-dqevent.rst
+++ b/Documentation/media/uapi/v4l/vidioc-dqevent.rst
@@ -197,6 +197,11 @@ call.
 	the regions changes. This event has a struct
 	:c:type:`v4l2_event_motion_det`
 	associated with it.
+    * - ``V4L2_EVENT_FRAME_TIMEOUT``
+      - 7
+      - This event is triggered when the video capture or output device
+	has timed out waiting for the reception or transmit completion of
+	a frame of video.
     * - ``V4L2_EVENT_PRIVATE_START``
       - 0x08000000
       - Base event number for driver-private events.
diff --git a/Documentation/media/videodev2.h.rst.exceptions b/Documentation/media/videodev2.h.rst.exceptions
index e11a0d0..5b0f767 100644
--- a/Documentation/media/videodev2.h.rst.exceptions
+++ b/Documentation/media/videodev2.h.rst.exceptions
@@ -459,6 +459,7 @@ replace define V4L2_EVENT_CTRL event-type
 replace define V4L2_EVENT_FRAME_SYNC event-type
 replace define V4L2_EVENT_SOURCE_CHANGE event-type
 replace define V4L2_EVENT_MOTION_DET event-type
+replace define V4L2_EVENT_FRAME_TIMEOUT event-type
 replace define V4L2_EVENT_PRIVATE_START event-type
 
 replace define V4L2_EVENT_CTRL_CH_VALUE ctrl-changes-flags
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 46e8a2e3..e174c45 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -2132,6 +2132,7 @@ struct v4l2_streamparm {
 #define V4L2_EVENT_FRAME_SYNC			4
 #define V4L2_EVENT_SOURCE_CHANGE		5
 #define V4L2_EVENT_MOTION_DET			6
+#define V4L2_EVENT_FRAME_TIMEOUT		7
 #define V4L2_EVENT_PRIVATE_START		0x08000000
 
 /* Payload for V4L2_EVENT_VSYNC */
-- 
2.7.4