[media] v4l: Add media format codes for AHSV8888 on 32-bit busses

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 157 insertions, 0 deletions

diff --git a/Documentation/DocBook/media/v4l/subdev-formats.xml b/Documentation/DocBook/media/v4l/subdev-formats.xml
index f72c1cc93a9b..bfaef5078eb8 100644
--- a/Documentation/DocBook/media/v4l/subdev-formats.xml
+++ b/Documentation/DocBook/media/v4l/subdev-formats.xml
@@ -2492,6 +2492,163 @@
     </section>
 
     <section>
+      <title>HSV/HSL Formats</title>
+
+      <para>Those formats transfer pixel data as RGB values in a cylindrical-coordinate
+      system using Hue-Saturation-Value or Hue-Saturation-Lightness components. The
+      format code is made of the following information.
+      <itemizedlist>
+        <listitem><para>The hue, saturation, value or lightness and optional alpha
+        components order code, as encoded in a pixel sample. The only currently
+        supported value is AHSV.
+        </para></listitem>
+        <listitem><para>The number of bits per component, for each component. The values
+        can be different for all components. The only currently supported value is 8888.
+        </para></listitem>
+        <listitem><para>The number of bus samples per pixel. Pixels that are wider than
+        the bus width must be transferred in multiple samples. The only currently
+        supported value is 1.</para></listitem>
+        <listitem><para>The bus width.</para></listitem>
+        <listitem><para>For formats where the total number of bits per pixel is smaller
+        than the number of bus samples per pixel times the bus width, a padding
+        value stating if the bytes are padded in their most high order bits
+        (PADHI) or low order bits (PADLO).</para></listitem>
+        <listitem><para>For formats where the number of bus samples per pixel is larger
+        than 1, an endianness value stating if the pixel is transferred MSB first
+        (BE) or LSB first (LE).</para></listitem>
+      </itemizedlist>
+      </para>
+
+      <para>The following table lists existing HSV/HSL formats.</para>
+
+      <table pgwide="0" frame="none" id="v4l2-mbus-pixelcode-hsv">
+        <title>HSV/HSL formats</title>
+        <tgroup cols="27">
+          <colspec colname="id" align="left" />
+          <colspec colname="code" align="center"/>
+          <colspec colname="bit" />
+          <colspec colnum="4" colname="b31" align="center" />
+          <colspec colnum="5" colname="b20" align="center" />
+          <colspec colnum="6" colname="b29" align="center" />
+          <colspec colnum="7" colname="b28" align="center" />
+          <colspec colnum="8" colname="b27" align="center" />
+          <colspec colnum="9" colname="b26" align="center" />
+          <colspec colnum="10" colname="b25" align="center" />
+          <colspec colnum="11" colname="b24" align="center" />
+          <colspec colnum="12" colname="b23" align="center" />
+          <colspec colnum="13" colname="b22" align="center" />
+          <colspec colnum="14" colname="b21" align="center" />
+          <colspec colnum="15" colname="b20" align="center" />
+          <colspec colnum="16" colname="b19" align="center" />
+          <colspec colnum="17" colname="b18" align="center" />
+          <colspec colnum="18" colname="b17" align="center" />
+          <colspec colnum="19" colname="b16" align="center" />
+          <colspec colnum="20" colname="b15" align="center" />
+          <colspec colnum="21" colname="b14" align="center" />
+          <colspec colnum="22" colname="b13" align="center" />
+          <colspec colnum="23" colname="b12" align="center" />
+          <colspec colnum="24" colname="b11" align="center" />
+          <colspec colnum="25" colname="b10" align="center" />
+          <colspec colnum="26" colname="b09" align="center" />
+          <colspec colnum="27" colname="b08" align="center" />
+          <colspec colnum="28" colname="b07" align="center" />
+          <colspec colnum="29" colname="b06" align="center" />
+          <colspec colnum="30" colname="b05" align="center" />
+          <colspec colnum="31" colname="b04" align="center" />
+          <colspec colnum="32" colname="b03" align="center" />
+          <colspec colnum="33" colname="b02" align="center" />
+          <colspec colnum="34" colname="b01" align="center" />
+          <colspec colnum="35" colname="b00" align="center" />
+          <spanspec namest="b31" nameend="b00" spanname="b0" />
+          <thead>
+            <row>
+              <entry>Identifier</entry>
+              <entry>Code</entry>
+              <entry></entry>
+              <entry spanname="b0">Data organization</entry>
+            </row>
+            <row>
+              <entry></entry>
+              <entry></entry>
+              <entry>Bit</entry>
+              <entry>31</entry>
+              <entry>30</entry>
+              <entry>29</entry>
+              <entry>28</entry>
+              <entry>27</entry>
+              <entry>26</entry>
+              <entry>25</entry>
+              <entry>24</entry>
+              <entry>23</entry>
+              <entry>22</entry>
+              <entry>21</entry>
+              <entry>20</entry>
+              <entry>19</entry>
+              <entry>18</entry>
+              <entry>17</entry>
+              <entry>16</entry>
+              <entry>15</entry>
+              <entry>14</entry>
+              <entry>13</entry>
+              <entry>12</entry>
+              <entry>11</entry>
+              <entry>10</entry>
+              <entry>9</entry>
+              <entry>8</entry>
+              <entry>7</entry>
+              <entry>6</entry>
+              <entry>5</entry>
+              <entry>4</entry>
+              <entry>3</entry>
+              <entry>2</entry>
+              <entry>1</entry>
+              <entry>0</entry>
+            </row>
+          </thead>
+          <tbody valign="top">
+            <row id="V4L2-MBUS-FMT-AHSV8888-1X32">
+              <entry>V4L2_MBUS_FMT_AHSV8888_1X32</entry>
+              <entry>0x6001</entry>
+              <entry></entry>
+              <entry>a<subscript>7</subscript></entry>
+              <entry>a<subscript>6</subscript></entry>
+              <entry>a<subscript>5</subscript></entry>
+              <entry>a<subscript>4</subscript></entry>
+              <entry>a<subscript>3</subscript></entry>
+              <entry>a<subscript>2</subscript></entry>
+              <entry>a<subscript>1</subscript></entry>
+              <entry>a<subscript>0</subscript></entry>
+              <entry>h<subscript>7</subscript></entry>
+              <entry>h<subscript>6</subscript></entry>
+              <entry>h<subscript>5</subscript></entry>
+              <entry>h<subscript>4</subscript></entry>
+              <entry>h<subscript>3</subscript></entry>
+              <entry>h<subscript>2</subscript></entry>
+              <entry>h<subscript>1</subscript></entry>
+              <entry>h<subscript>0</subscript></entry>
+              <entry>s<subscript>7</subscript></entry>
+              <entry>s<subscript>6</subscript></entry>
+              <entry>s<subscript>5</subscript></entry>
+              <entry>s<subscript>4</subscript></entry>
+              <entry>s<subscript>3</subscript></entry>
+              <entry>s<subscript>2</subscript></entry>
+              <entry>s<subscript>1</subscript></entry>
+              <entry>s<subscript>0</subscript></entry>
+              <entry>v<subscript>7</subscript></entry>
+              <entry>v<subscript>6</subscript></entry>
+              <entry>v<subscript>5</subscript></entry>
+              <entry>v<subscript>4</subscript></entry>
+              <entry>v<subscript>3</subscript></entry>
+              <entry>v<subscript>2</subscript></entry>
+              <entry>v<subscript>1</subscript></entry>
+              <entry>v<subscript>0</subscript></entry>
+            </row>
+          </tbody>
+        </tgroup>
+      </table>
+    </section>
+
+    <section>
       <title>JPEG Compressed Formats</title>
 
       <para>Those data formats consist of an ordered sequence of 8-bit bytes