From: Manjunath Hadli <manjunath.hadli@xxxxxx>
A lot of SOCs including Texas Instruments Davinci family mainly use
video decoders as input devices. This patch adds a flag
'MEDIA_ENT_T_V4L2_SUBDEV_DECODER' media entity type for decoder's.
Along side updates the documentation for this media entity type.
Signed-off-by: Manjunath Hadli <manjunath.hadli@xxxxxx>
Signed-off-by: Lad, Prabhakar <prabhakar.lad@xxxxxx>
Cc: Rob Landley <rob@xxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
---
Changes for v3:
1: Fixed Nit pointed by Sylwester.
Changes for v2:
1: Sending as a separate patch.
2: Added documentation for the added media entity type.
3: Improved the commit message.
.../DocBook/media/v4l/media-ioc-enum-entities.xml | 10 ++++++++++
include/uapi/linux/media.h | 2 ++
2 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml b/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml
index 576b68b..116c301 100644
--- a/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml
+++ b/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml
@@ -272,6 +272,16 @@
<entry><constant>MEDIA_ENT_T_V4L2_SUBDEV_LENS</constant></entry>
<entry>Lens controller</entry>
</row>
+ <row>
+ <entry><constant>MEDIA_ENT_T_V4L2_SUBDEV_DECODER</constant></entry>
+ <entry>Video decoder, the basic function of the video decoder is to
+ accept analogue video from a wide variety of sources such as
+ broadcast, DVD players, cameras and video cassette recorders, in
+ either NTSC, PAL or HD format and still occasionally SECAM, separate
+ it into its component parts, luminance and chrominance, and output
+ it in some digital video standard, with appropriate embedded timing
+ signals.</entry>
+ </row>
</tbody>
</tgroup>
</table>
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 0ef8833..ed49574 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -56,6 +56,8 @@ struct media_device_info {
#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR (MEDIA_ENT_T_V4L2_SUBDEV + 1)
#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2)
#define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3)
+/* A converter of analogue video to its digital representation. */
+#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER (MEDIA_ENT_T_V4L2_SUBDEV + 4)
#define MEDIA_ENT_FL_DEFAULT (1 << 0)
--
1.7.0.4
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