[media] DocBook media: document the new V4L2_CID_DV_RX/TX_IT_CONTENT_TYPE controls

Document these new controls.

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

diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index f13a429..7a77149 100644 (file)
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -5069,6 +5069,46 @@ interface and may change in the future.</para>
            This control is applicable to VGA, DVI-A/D, HDMI and DisplayPort connectors.
            </entry>
          </row>
+         <row>
+           <entry spanname="id"><constant>V4L2_CID_DV_TX_IT_CONTENT_TYPE</constant></entry>
+           <entry id="v4l2-dv-content-type">enum v4l2_dv_it_content_type</entry>
+         </row>
+         <row><entry spanname="descr">Configures the IT Content Type
+           of the transmitted video. This information is sent over HDMI and DisplayPort connectors
+           as part of the AVI InfoFrame. The term 'IT Content' is used for content that originates
+           from a computer as opposed to content from a TV broadcast or an analog source. The
+           enum&nbsp;v4l2_dv_it_content_type defines the possible content types:</entry>
+         </row>
+         <row>
+           <entrytbl spanname="descr" cols="2">
+             <tbody valign="top">
+               <row>
+                 <entry><constant>V4L2_DV_IT_CONTENT_TYPE_GRAPHICS</constant>&nbsp;</entry>
+                 <entry>Graphics content. Pixel data should be passed unfiltered and without
+                 analog reconstruction.</entry>
+               </row>
+               <row>
+                 <entry><constant>V4L2_DV_IT_CONTENT_TYPE_PHOTO</constant>&nbsp;</entry>
+                 <entry>Photo content. The content is derived from digital still pictures.
+                 The content should be passed through with minimal scaling and picture
+                 enhancements.</entry>
+               </row>
+               <row>
+                 <entry><constant>V4L2_DV_IT_CONTENT_TYPE_CINEMA</constant>&nbsp;</entry>
+                 <entry>Cinema content.</entry>
+               </row>
+               <row>
+                 <entry><constant>V4L2_DV_IT_CONTENT_TYPE_GAME</constant>&nbsp;</entry>
+                 <entry>Game content. Audio and video latency should be minimized.</entry>
+               </row>
+               <row>
+                 <entry><constant>V4L2_DV_IT_CONTENT_TYPE_NO_ITC</constant>&nbsp;</entry>
+                 <entry>No IT Content information is available and the ITC bit in the AVI
+                 InfoFrame is set to 0.</entry>
+               </row>
+             </tbody>
+           </entrytbl>
+         </row>
          <row>
            <entry spanname="id"><constant>V4L2_CID_DV_RX_POWER_PRESENT</constant></entry>
            <entry>bitmask</entry>
@@ -5098,6 +5138,16 @@ interface and may change in the future.</para>
            This control is applicable to VGA, DVI-A/D, HDMI and DisplayPort connectors.
            </entry>
          </row>
+         <row>
+           <entry spanname="id"><constant>V4L2_CID_DV_RX_IT_CONTENT_TYPE</constant></entry>
+           <entry>enum v4l2_dv_it_content_type</entry>
+         </row>
+         <row><entry spanname="descr">Reads the IT Content Type
+           of the received video. This information is sent over HDMI and DisplayPort connectors
+           as part of the AVI InfoFrame. The term 'IT Content' is used for content that originates
+           from a computer as opposed to content from a TV broadcast or an analog source. See
+           <constant>V4L2_CID_DV_TX_IT_CONTENT_TYPE</constant> for the available content types.</entry>
+         </row>
          <row><entry></entry></row>
        </tbody>
       </tgroup>