[media] DocBook: better document FE_SET_TONE ioctl
authorMauro Carvalho Chehab <mchehab@osg.samsung.com>
Wed, 27 May 2015 10:15:50 +0000 (07:15 -0300)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>
Sat, 30 May 2015 12:35:51 +0000 (09:35 -0300)
Use the proper format for FE_SET_TONE documentation and
improve the documentation.

Keep the enum fe_sec_tone_mode description together with
the ioctl, as both are used together.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Documentation/DocBook/media/dvb/fe-set-tone.xml [new file with mode: 0644]
Documentation/DocBook/media/dvb/frontend.xml
include/uapi/linux/dvb/frontend.h

diff --git a/Documentation/DocBook/media/dvb/fe-set-tone.xml b/Documentation/DocBook/media/dvb/fe-set-tone.xml
new file mode 100644 (file)
index 0000000..b4b1f53
--- /dev/null
@@ -0,0 +1,88 @@
+<refentry id="FE_SET_TONE">
+  <refmeta>
+    <refentrytitle>ioctl FE_SET_TONE</refentrytitle>
+    &manvol;
+  </refmeta>
+
+  <refnamediv>
+    <refname>FE_SET_TONE</refname>
+    <refpurpose>Sets/resets the generation of the continuous 22kHz tone.</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <funcsynopsis>
+      <funcprototype>
+       <funcdef>int <function>ioctl</function></funcdef>
+       <paramdef>int <parameter>fd</parameter></paramdef>
+       <paramdef>int <parameter>request</parameter></paramdef>
+       <paramdef>&fe-sec-tone-mode; *<parameter>tone</parameter></paramdef>
+      </funcprototype>
+    </funcsynopsis>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Arguments</title>
+        <variablelist>
+      <varlistentry>
+       <term><parameter>fd</parameter></term>
+       <listitem>
+         <para>&fe_fd;</para>
+       </listitem>
+      </varlistentry>
+      <varlistentry>
+       <term><parameter>request</parameter></term>
+       <listitem>
+         <para>FE_SET_TONE</para>
+       </listitem>
+      </varlistentry>
+      <varlistentry>
+       <term><parameter>pointer to &fe-sec-tone-mode;</parameter></term>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1>
+    <title>Description</title>
+
+<para>This ioctl is used to set the generation of the continuous 22kHz tone.
+    This call requires read/write permissions.</para>
+<para>Usually, satellital antenna subsystems require that the digital TV
+    device to send a 22kHz tone in order to select between high/low band on
+    some dual-band LNBf. It is also used to send signals to DiSEqC equipment,
+    but this is done using the DiSEqC ioctls.</para>
+<para>NOTE: if more than one device is connected to the same antenna,
+    setting a tone may interfere on other devices, as they may lose
+    the capability of selecting the band. So, it is recommended that
+    applications would change to SEC_TONE_OFF when the device is not used.</para>
+
+&return-value-dvb;
+</refsect1>
+
+<section id="fe-sec-tone-mode-t">
+<title>enum fe_sec_voltage</title>
+
+<table pgwide="1" frame="none" id="fe-sec-tone-mode">
+    <title>enum fe_sec_tone_mode</title>
+    <tgroup cols="2">
+       &cs-def;
+       <thead>
+       <row>
+           <entry>ID</entry>
+           <entry>Description</entry>
+       </row>
+       </thead>
+       <tbody valign="top">
+       <row>
+           <entry align="char">SEC_TONE_ON</entry>
+           <entry align="char">Sends a 22kHz tone burst to the antenna</entry>
+       </row><row>
+           <entry align="char">SEC_TONE_OFF</entry>
+           <entry align="char">Don't send a 22kHz tone to the antenna
+               (except if the FE_DISEQC_* ioctls are called)</entry>
+       </row>
+        </tbody>
+    </tgroup>
+</table>
+</section>
+
+</refentry>
index 584c759b6bbef1aff6fefbc913bdff01ba7f50ee..f05da4abb3fe85595c0548925aba80573c9b1f5a 100644 (file)
@@ -75,21 +75,6 @@ specification is available at
 </programlisting>
 </section>
 
-<section id="fe-sec-tone-mode-t">
-<title>SEC continuous tone</title>
-
-<para>The continuous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the
-high/low band of a dual-band LNB. When using DiSEqC epuipment this voltage has to
-be switched consistently to the DiSEqC commands as described in the DiSEqC
-spec.</para>
-<programlisting>
-       typedef enum fe_sec_tone_mode {
-       SEC_TONE_ON,
-       SEC_TONE_OFF
-       } fe_sec_tone_mode_t;
-</programlisting>
-</section>
-
 <section id="fe-sec-mini-cmd-t">
 <title>SEC tone burst</title>
 
@@ -582,52 +567,8 @@ typedef enum fe_hierarchy {
 &return-value-dvb;
 </section>
 
-<section id="FE_SET_TONE">
-<title>FE_SET_TONE</title>
-<para>DESCRIPTION
-</para>
-<informaltable><tgroup cols="1"><tbody><row><entry
- align="char">
-<para>This call is used to set the generation of the continuous 22kHz tone. This call
- requires read/write permissions.</para>
-</entry>
- </row></tbody></tgroup></informaltable>
-<para>SYNOPSIS
-</para>
-<informaltable><tgroup cols="1"><tbody><row><entry
- align="char">
-<para>int ioctl(int fd, int request = <link linkend="FE_SET_TONE">FE_SET_TONE</link>,
- fe_sec_tone_mode_t tone);</para>
-</entry>
- </row></tbody></tgroup></informaltable>
-<para>PARAMETERS
-</para>
-<informaltable><tgroup cols="2"><tbody><row><entry
- align="char">
-<para>int fd</para>
-</entry><entry
- align="char">
-<para>File descriptor returned by a previous call to open().</para>
-</entry>
- </row><row><entry
- align="char">
-<para>int request</para>
-</entry><entry
- align="char">
-<para>Equals <link linkend="FE_SET_TONE">FE_SET_TONE</link> for this command.</para>
-</entry>
- </row><row><entry
- align="char">
-<para>fe_sec_tone_mode_t
- tone</para>
-</entry><entry
- align="char">
-<para>The requested tone generation mode (on/off).</para>
-</entry>
- </row></tbody></tgroup></informaltable>
-&return-value-dvb;
-</section>
 
+&sub-fe-set-tone;
 &sub-fe-set-voltage;
 &sub-fe-enable-high-lnb-voltage;
 &sub-fe-set-frontend-tune-mode;
index c1ccbc82024c59cffa0f9dd56ccdeb466da51f94..1a098819473f1c0dd3cdf7dabe5b8ae3bbe1ca18 100644 (file)
@@ -114,10 +114,12 @@ enum fe_sec_voltage {
 typedef enum fe_sec_voltage fe_sec_voltage_t;
 
 
-typedef enum fe_sec_tone_mode {
+enum fe_sec_tone_mode {
        SEC_TONE_ON,
        SEC_TONE_OFF
-} fe_sec_tone_mode_t;
+};
+
+typedef enum fe_sec_tone_mode fe_sec_tone_mode_t;
 
 
 typedef enum fe_sec_mini_cmd {
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