Add V4L2_MBUS_FMT_JPEG_1X8 format and the corresponding Docbook
documentation.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
Documentation/DocBook/v4l/subdev-formats.xml | 46 ++++++++++++++++++++++++++
include/linux/v4l2-mediabus.h | 3 ++
2 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/Documentation/DocBook/v4l/subdev-formats.xml b/Documentation/DocBook/v4l/subdev-formats.xml
index 7041127..df2d7d3 100644
--- a/Documentation/DocBook/v4l/subdev-formats.xml
+++ b/Documentation/DocBook/v4l/subdev-formats.xml
@@ -2463,5 +2463,51 @@
</tgroup>
</table>
</section>
+
+ <section>
+ <title>JPEG Compressed Formats</title>
+
+ <para>Those data formats consist of an ordered sequence of 8-bit bytes
+ obtained from JPEG compression process. Additionally to the
+ <constant>_JPEG</constant> prefix the format code is made of
+ the following information.
+ <itemizedlist>
+ <listitem>The number of bus samples per entropy encoded byte.</listitem>
+ <listitem>The bus width.</listitem>
+ </itemizedlist>
+
+ <para>For instance, for a JPEG baseline process and an 8-bit bus width
+ the format will be named <constant>V4L2_MBUS_FMT_JPEG_1X8</constant>.
+ </para>
+ </para>
+
+ <para>The following table lists existing JPEG compressed formats.</para>
+
+ <table pgwide="0" frame="none" id="v4l2-mbus-pixelcode-jpeg">
+ <title>JPEG Formats</title>
+ <tgroup cols="3">
+ <colspec colname="id" align="left" />
+ <colspec colname="code" align="left"/>
+ <colspec colname="remarks" align="left"/>
+ <thead>
+ <row>
+ <entry>Identifier</entry>
+ <entry>Code</entry>
+ <entry>Remarks</entry>
+ </row>
+ </thead>
+ <tbody valign="top">
+ <row id="V4L2-MBUS-FMT-JPEG-1X8">
+ <entry>V4L2_MBUS_FMT_JPEG_1X8</entry>
+ <entry>0x4001</entry>
+ <entry>Besides of its usage for the parallel bus this format is
+ recommended for transmission of JPEG data over MIPI CSI bus
+ using the User Defined 8-bit Data types.
+ </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </section>
</section>
</section>
diff --git a/include/linux/v4l2-mediabus.h b/include/linux/v4l2-mediabus.h
index 7054a7a..15d6cda 100644
--- a/include/linux/v4l2-mediabus.h
+++ b/include/linux/v4l2-mediabus.h
@@ -86,6 +86,9 @@ enum v4l2_mbus_pixelcode {
V4L2_MBUS_FMT_SGBRG12_1X12 = 0x3010,
V4L2_MBUS_FMT_SGRBG12_1X12 = 0x3011,
V4L2_MBUS_FMT_SRGGB12_1X12 = 0x3012,
+
+ /* JPEG compressed formats - next is 0x4002 */
+ V4L2_MBUS_FMT_JPEG_1X8 = 0x4001,
};
/**
--
1.7.4.5
--
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