From e64171b97b88a1adf297d429826fdbb9e232ab53 Mon Sep 17 00:00:00 2001
From: Manjunath Hadli <manjunath.hadli@ti.com>
Date: Thu, 7 Feb 2013 13:48:51 -0300
Subject: [PATCH] [media] media: add support for decoder as one of media entity
types
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@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
.../DocBook/media/v4l/media-ioc-enum-entities.xml | 10 ++++++++++
include/uapi/linux/media.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml b/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml
index 576b68b33f2c..116c301656e0 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 0ef883327de2..ed49574ad757 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)
--
GitLab