[media] DocBook: document new v4l motion detection event

Document the new motion detection event.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

2 files changed, 52 insertions, 0 deletions

diff --git a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml
index 820f86e8744b..f3767fb81eef 100644
--- a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml
@@ -94,6 +94,12 @@
           </row>
           <row>
             <entry></entry>
+            <entry>&v4l2-event-motion-det;</entry>
+            <entry><structfield>motion_det</structfield></entry>
+            <entry>Event data for event V4L2_EVENT_MOTION_DET.</entry>
+          </row>
+          <row>
+            <entry></entry>
             <entry>__u8</entry>
             <entry><structfield>data</structfield>[64]</entry>
             <entry>Event data. Defined by the event type. The union
@@ -258,6 +264,44 @@
       </tgroup>
     </table>
 
+    <table frame="none" pgwide="1" id="v4l2-event-motion-det">
+      <title>struct <structname>v4l2_event_motion_det</structname></title>
+      <tgroup cols="3">
+        &cs-str;
+        <tbody valign="top">
+          <row>
+            <entry>__u32</entry>
+            <entry><structfield>flags</structfield></entry>
+            <entry>
+              Currently only one flag is available: if <constant>V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ</constant>
+              is set, then the <structfield>frame_sequence</structfield> field is valid,
+              otherwise that field should be ignored.
+            </entry>
+          </row>
+          <row>
+            <entry>__u32</entry>
+            <entry><structfield>frame_sequence</structfield></entry>
+            <entry>
+              The sequence number of the frame being received. Only valid if the
+              <constant>V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ</constant> flag was set.
+            </entry>
+          </row>
+          <row>
+            <entry>__u32</entry>
+            <entry><structfield>region_mask</structfield></entry>
+            <entry>
+              The bitmask of the regions that reported motion. There is at least one
+              region. If this field is 0, then no motion was detected at all.
+              If there is no <constant>V4L2_CID_DETECT_MD_REGION_GRID</constant> control
+              (see <xref linkend="detect-controls" />) to assign a different region
+              to each cell in the motion detection grid, then that all cells
+              are automatically assigned to the default region 0.
+            </entry>
+          </row>
+        </tbody>
+      </tgroup>
+    </table>
+
     <table pgwide="1" frame="none" id="changes-flags">
       <title>Changes</title>
       <tgroup cols="3">
diff --git a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
index 17efa870d4d2..9f6095608837 100644
--- a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
@@ -175,6 +175,14 @@
             </entry>
           </row>
           <row>
+            <entry><constant>V4L2_EVENT_MOTION_DET</constant></entry>
+            <entry>5</entry>
+            <entry>
+              <para>Triggered whenever the motion detection state for one or more of the regions
+              changes. This event has a &v4l2-event-motion-det; associated with it.</para>
+            </entry>
+          </row>
+          <row>
             <entry><constant>V4L2_EVENT_PRIVATE_START</constant></entry>
             <entry>0x08000000</entry>
             <entry>Base event number for driver-private events.</entry>