@@ -716,6 +716,41 @@
}
</programlisting>
</example>
+ <section id="dv-timings">
+ <title>Digital Video (DV) Timings</title>
+ <para>
+ The video standards discussed so far has been dealing with Analog TV and the
+corresponding video timings. Today there are many more different hardware interfaces
+such as High Definition TV interfaces (HDMI), VGA, DVI connectors etc., that carries
+video signals and there is a need to extend the API to allow settings video timings
+ on these interfaces. Since it is not possible to extend the v4l2-std-id due to
+the limited bits available, a new set of IOCTLs are added to set/get video timings at
+the input and output:- </para><itemizedlist>
+ <listitem>
+ <para> DV Presets :- Digital Video (DV) presets. These are IDs representing a
+video timing at the input/output. Presets can be thought of pre-defined timings implemented
+by the hardware like standards. A __u32 data type is used to represent a preset unlike the
+ bit mask that is used in &v4l2-std-id; allowing future extensions to support many
+different presets as needed</para>
+ </listitem>
+ <listitem>
+ <para> Custom DV Timings :- This will allow applications to define a more detailed
+custom video timings at the interface. This includes parameters such as width, height,
+ polarities, frontporch, backporch etc.
+ </para>
+ </listitem>
+ </itemizedlist>
+ <para> To Enumerate and query the attributes of DV presets supported by a device,
+ applications use the &VIDIOC-ENUM-DV-PRESETS; ioctl. To Get the current DV preset,
+ application use the &VIDIOC-G-DV-PRESET; ioctl and to Set a preset it uses the
+ &VIDIOC-S-DV-PRESET; ioctl.</para>
+ <para> To Set a Custom DV timings at the device, applications use the
+ &VIDIOC-S-DV-TIMINGS; ioctl and to Get current Custom DV timings, it uses the
+ &VIDIOC-G-DV-TIMINGS; ioctl.</para>
+ <para> Applications can make use of the <xref linkend="input-capabilities" /> and
+<xref linkend="output-capabilities"/> flags to decide what ioctls available to set the
+video timings at the device.</para>
+ </section>
</section>
&sub-controls;
@@ -416,6 +416,10 @@
&sub-enum-frameintervals;
&sub-enuminput;
&sub-enumoutput;
+ &sub-enum-dv-presets;
+ &sub-g-dv-preset;
+ &sub-query-dv-preset;
+ &sub-g-dv-timings;
&sub-enumstd;
&sub-g-audio;
&sub-g-audioout;
@@ -0,0 +1,167 @@
+<refentry id="vidioc-enum-dv-presets">
+ <refmeta>
+ <refentrytitle>ioctl VIDIOC_ENUM_DV_PRESETS</refentrytitle>
+ &manvol;
+ </refmeta>
+
+ <refnamediv>
+ <refname>VIDIOC_ENUM_DV_PRESETS</refname>
+ <refpurpose>Enumerate supported Digital Video Presets</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>int <function>ioctl</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>request</parameter></paramdef>
+ <paramdef>struct v4l2_dv_enum_preset *<parameter>argp</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Arguments</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><parameter>fd</parameter></term>
+ <listitem>
+ <para>&fd;</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>request</parameter></term>
+ <listitem>
+ <para>VIDIOC_ENUM_DV_PRESETS</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>argp</parameter></term>
+ <listitem>
+ <para></para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>To query the attributes of a DV preset, applications initialize the
+<structfield>index</structfield> field of &v4l2-dv-enum-preset; and call the
+<constant>VIDIOC_ENUM_DV_PRESETS</constant> ioctl with a pointer to this
+structure. Drivers fill the rest of the structure or return an
+&EINVAL; when the index is out of bounds. To enumerate all DV Presets supported,
+applications shall begin at index zero, incrementing by one until the
+driver returns <errorcode>EINVAL</errorcode>. Drivers may enumerate a
+different set of DV Presets after switching the video input or
+output.</para>
+
+ <table pgwide="1" frame="none" id="v4l2-dv-enum-preset">
+ <title>struct <structname>v4l2_dv_enum_presets</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>index</structfield></entry>
+ <entry>Number of the DV preset, set by the
+application.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>preset</structfield></entry>
+ <entry>This field identify one of the DV Preset value listed below</entry>
+ </row>
+ <row>
+ <entry>__u8</entry>
+ <entry><structfield>name</structfield>[24]</entry>
+ <entry>Name of the preset, a NUL-terminated ASCII
+string, for example: "720P-60", "1080I-60". This information is
+intended for the user.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>width</structfield></entry>
+ <entry>Width in pixels of the DV preset.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>height</structfield></entry>
+ <entry>Height in lines of the DV preset.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>reserved</structfield>[4]</entry>
+ <entry>Reserved for future extensions. Drivers must set
+the array to zero.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ <para><programlisting>
+#define V4L2_DV_PRESET_BASE 0x00000000
+#define V4L2_DV_INVALID (V4L2_DV_PRESET_BASE + 0)
+/* BT.1362 */
+#define V4L2_DV_480P59_94 (V4L2_DV_PRESET_BASE + 1)
+/* BT.1362 */
+#define V4L2_DV_576P50 (V4L2_DV_PRESET_BASE + 2)
+/* SMPTE 296M */
+#define V4L2_DV_720P24 (V4L2_DV_PRESET_BASE + 3)
+/* SMPTE 296M */
+#define V4L2_DV_720P25 (V4L2_DV_PRESET_BASE + 4)
+/* SMPTE 296M */
+#define V4L2_DV_720P30 (V4L2_DV_PRESET_BASE + 5)
+/* SMPTE 296M */
+#define V4L2_DV_720P50 (V4L2_DV_PRESET_BASE + 6)
+/* SMPTE 274M */
+#define V4L2_DV_720P59_94 (V4L2_DV_PRESET_BASE + 7)
+/* SMPTE 274M/296M */
+#define V4L2_DV_720P60 (V4L2_DV_PRESET_BASE + 8)
+/* BT.1120/ SMPTE 274M */
+#define V4L2_DV_1080I29_97 (V4L2_DV_PRESET_BASE + 9)
+/* BT.1120/ SMPTE 274M */
+#define V4L2_DV_1080I30 (V4L2_DV_PRESET_BASE + 10)
+/* BT.1120 */
+#define V4L2_DV_1080I25 (V4L2_DV_PRESET_BASE + 11)
+/* SMPTE 296M */
+#define V4L2_DV_1080I50 (V4L2_DV_PRESET_BASE + 12)
+/* SMPTE 296M */
+#define V4L2_DV_1080I60 (V4L2_DV_PRESET_BASE + 13)
+/* SMPTE 296M */
+#define V4L2_DV_1080P24 (V4L2_DV_PRESET_BASE + 14)
+/* SMPTE 296M */
+#define V4L2_DV_1080P25 (V4L2_DV_PRESET_BASE + 15)
+/* SMPTE 296M */
+#define V4L2_DV_1080P30 (V4L2_DV_PRESET_BASE + 16)
+/* BT.1120 */
+#define V4L2_DV_1080P50 (V4L2_DV_PRESET_BASE + 17)
+/* BT.1120 */
+#define V4L2_DV_1080P60 (V4L2_DV_PRESET_BASE + 18)
+</programlisting> </para>
+ </refsect1>
+
+ <refsect1>
+ &return-value;
+
+ <variablelist>
+ <varlistentry>
+ <term><errorcode>EINVAL</errorcode></term>
+ <listitem>
+ <para>The &v4l2-dv-enum-preset; <structfield>index</structfield>
+is out of bounds.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+</refentry>
+
+<!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "v4l2.sgml"
+indent-tabs-mode: nil
+End:
+-->
@@ -124,7 +124,13 @@
</row>
<row>
<entry>__u32</entry>
- <entry><structfield>reserved</structfield>[4]</entry>
+ <entry><structfield>capabilities</structfield></entry>
+ <entry>This field provides capabilities that exists at the
+input. See <xref linkend="input-capabilities" /> for flags </entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>reserved</structfield>[3]</entry>
<entry>Reserved for future extensions. Drivers must set
the array to zero.</entry>
</row>
@@ -261,6 +267,34 @@
</tbody>
</tgroup>
</table>
+
+ <!-- Capabilities flags based on video timings RFC by Muralidharan
+Karicheri, titled RFC (v1.2): V4L - Support for video timings at the
+input/output interface to linux-media@vger.kernel.org on 19 Oct 2009.
+ -->
+ <table frame="none" pgwide="1" id="input-capabilities">
+ <title>Input capabilities</title>
+ <tgroup cols="3">
+ &cs-def;
+ <tbody valign="top">
+ <row>
+ <entry><constant>V4L2_IN_CAP_PRESETS</constant></entry>
+ <entry>0x00000001</entry>
+ <entry>This input supports setting DV PRESET using VIDIOC_S_DV_PRESET</entry>
+ </row>
+ <row>
+ <entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry>
+ <entry>0x00000002</entry>
+ <entry>This input supports setting Custom timings using VIDIOC_S_DV_TIMINGS</entry>
+ </row>
+ <row>
+ <entry><constant>V4L2_IN_CAP_STD</constant></entry>
+ <entry>0x00000004</entry>
+ <entry>This input supports setting standard using VIDIOC_S_STD</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
</refsect1>
<refsect1>
@@ -114,7 +114,13 @@
</row>
<row>
<entry>__u32</entry>
- <entry><structfield>reserved</structfield>[4]</entry>
+ <entry><structfield>capabilities</structfield></entry>
+ <entry>This field provides capabilities that exists at the
+output. See <xref linkend="output-capabilities" /> for flags </entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>reserved</structfield>[3]</entry>
<entry>Reserved for future extensions. Drivers must set
the array to zero.</entry>
</row>
@@ -147,6 +153,34 @@
</tgroup>
</table>
+ <!-- Capabilities flags based on video timings RFC by Muralidharan
+Karicheri, titled RFC (v1.2): V4L - Support for video timings at the
+input/output interface to linux-media@vger.kernel.org on 19 Oct 2009.
+ -->
+ <table frame="none" pgwide="1" id="output-capabilities">
+ <title>Output capabilities</title>
+ <tgroup cols="3">
+ &cs-def;
+ <tbody valign="top">
+ <row>
+ <entry><constant>V4L2_OUT_CAP_PRESETS</constant></entry>
+ <entry>0x00000001</entry>
+ <entry>This output supports setting DV PRESET using VIDIOC_S_DV_PRESET</entry>
+ </row>
+ <row>
+ <entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry>
+ <entry>0x00000002</entry>
+ <entry>This output supports setting Custom timings using VIDIOC_S_DV_TIMINGS</entry>
+ </row>
+ <row>
+ <entry><constant>V4L2_OUT_CAP_STD</constant></entry>
+ <entry>0x00000004</entry>
+ <entry>This output supports setting standard using VIDIOC_S_STD</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
</refsect1>
<refsect1>
&return-value;
@@ -0,0 +1,103 @@
+<refentry id="vidioc-g-dv-preset">
+ <refmeta>
+ <refentrytitle>ioctl VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</refentrytitle>
+ &manvol;
+ </refmeta>
+
+ <refnamediv>
+ <refname>VIDIOC_G_DV_PRESET</refname>
+ <refname>VIDIOC_S_DV_PRESET</refname>
+ <refpurpose>Query or select the DV preset of the current input or output</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>int <function>ioctl</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>request</parameter></paramdef>
+ <paramdef>&v4l2-dv-preset;
+*<parameter>argp</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Arguments</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><parameter>fd</parameter></term>
+ <listitem>
+ <para>&fd;</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>request</parameter></term>
+ <listitem>
+ <para>VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>argp</parameter></term>
+ <listitem>
+ <para></para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Description</title>
+ <para>To query and select the current DV preset, applications
+use the <constant>VIDIOC_G_DV_PRESET</constant> and <constant>VIDIOC_S_DV_PRESET</constant>
+ioctls which take a pointer to a &v4l2-dv-preset; type as argument. <constant>VIDIOC_G_DV_PRESET</constant>
+returns a dv preset in the field <structfield>preset</structfield> of &v4l2-dv-preset; </para>
+
+ <para><constant>VIDIOC_S_DV_PRESET</constant> accepts a pointer to a &v4l2-dv-preset;
+that has the preset value to be set. If the preset is not supported, it
+returns an &EINVAL; </para>
+ </refsect1>
+
+ <refsect1>
+ &return-value;
+
+ <variablelist>
+ <varlistentry>
+ <term><errorcode>EINVAL</errorcode></term>
+ <listitem>
+ <para>This ioctl is not supported, or the
+<constant>VIDIOC_S_DV_PRESET</constant>,<constant>VIDIOC_S_DV_PRESET</constant> parameter was unsuitable.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ <table pgwide="1" frame="none" id="v4l2-dv-preset">
+ <title>struct <structname>v4l2_dv_preset</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>preset</structfield></entry>
+ <entry>preset value to represent the digital video timings</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>reserved[4]</structfield></entry>
+ <entry>Reserved fields for future use</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ </refsect1>
+</refentry>
+
+<!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "v4l2.sgml"
+indent-tabs-mode: nil
+End:
+-->
@@ -0,0 +1,195 @@
+<refentry id="vidioc-g-dv-timings">
+ <refmeta>
+ <refentrytitle>ioctl VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</refentrytitle>
+ &manvol;
+ </refmeta>
+
+ <refnamediv>
+ <refname>VIDIOC_G_DV_TIMINGS</refname>
+ <refname>VIDIOC_S_DV_TIMINGS</refname>
+ <refpurpose>Get or Set Custom DV Timings at input or output</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>int <function>ioctl</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>request</parameter></paramdef>
+ <paramdef>&v4l2-dv-timings;
+*<parameter>argp</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Arguments</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><parameter>fd</parameter></term>
+ <listitem>
+ <para>&fd;</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>request</parameter></term>
+ <listitem>
+ <para>VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>argp</parameter></term>
+ <listitem>
+ <para></para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Description</title>
+ <para>To Set Custom DV timings at the input or output, applications use the
+<constant>VIDIOC_S_DV_TIMINGS</constant> ioctl and to Get the current custom timings,
+applications use <constant>VIDIOC_G_DV_TIMINGS</constant> ioctl. The detailed timing
+informations are filled in using the structure &v4l2-dv-timings;. These ioctls take
+ a pointer to &v4l2-dv-timings; structure as argument. If the ioctl is not supported
+or the timing values are not correct, driver returns an &EINVAL; </para>
+ </refsect1>
+
+ <refsect1>
+ &return-value;
+
+ <variablelist>
+ <varlistentry>
+ <term><errorcode>EINVAL</errorcode></term>
+ <listitem>
+ <para>This ioctl is not supported, or the
+<constant>VIDIOC_S_DV_TIMINGS</constant> parameter was unsuitable.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ <table frame="none" pgwide="1" id="v4l2-dv-timings-type">
+ <title>DV Timing types</title>
+ <tgroup cols="3">
+ &cs-def;
+ <tbody valign="top">
+ <row>
+ <entry><constant>V4L2_DV_BT_656_1120</constant></entry>
+ <entry></entry>
+ <entry>BT.656/BT.1120 timings </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+
+ <table pgwide="1" frame="none" id="v4l2-bt-timings">
+ <title>struct <structname>v4l2_bt_timings</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>width</structfield></entry>
+ <entry>width in pixels</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>height</structfield></entry>
+ <entry>height in lines</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>interlaced</structfield></entry>
+ <entry>Interlaced or progressive</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>polarities</structfield></entry>
+ <entry>Positive or negative polarity</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>pixelclock</structfield></entry>
+ <entry>Pixel clock in HZ. Ex. 74.25MHz->74250000</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>hfrontporch</structfield></entry>
+ <entry>Horizpontal front porch in pixels</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>hsync</structfield></entry>
+ <entry>Horizontal Sync length in pixels</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>hbackporch</structfield></entry>
+ <entry>Horizontal back porch in pixels</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>vfrontporch</structfield></entry>
+ <entry>Vertical front porch in pixels</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>vsync</structfield></entry>
+ <entry>Vertical Sync length in lines</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>vbackporch</structfield></entry>
+ <entry>Vertical back porch in lines</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>il_vfrontporch</structfield></entry>
+ <entry>Vertical front porch for bottom field of interlaced field formats</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>il_vsync</structfield></entry>
+ <entry>Vertical sync length for bottom field of interlaced field formats</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>il_vbackporch</structfield></entry>
+ <entry>Vertical back porch for bottom field of interlaced field formats</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ <table pgwide="1" frame="none" id="v4l2-dv-timings">
+ <title>struct <structname>v4l2_dv_timings</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>&v4l2-dv-timings-type;</entry>
+ <entry><structfield>type</structfield></entry>
+ <entry></entry>
+ </row>
+ <row>
+ <entry>union</entry>
+ <entry><structfield>&v4l2-bt-timings; bt and reserved[32]</structfield></entry>
+ <entry></entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ </refsect1>
+</refentry>
+
+<!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "v4l2.sgml"
+indent-tabs-mode: nil
+End:
+-->
@@ -0,0 +1,80 @@
+<refentry id="vidioc-query-dv-preset">
+ <refmeta>
+ <refentrytitle>ioctl VIDIOC_QUERY_DV_PRESET</refentrytitle>
+ &manvol;
+ </refmeta>
+
+ <refnamediv>
+ <refname>VIDIOC_QUERY_DV_PRESET</refname>
+ <refpurpose>Sense the DV preset received by the current
+input</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>int <function>ioctl</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>request</parameter></paramdef>
+ <paramdef>&v4l2-dv-preset; *<parameter>argp</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Arguments</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><parameter>fd</parameter></term>
+ <listitem>
+ <para>&fd;</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>request</parameter></term>
+ <listitem>
+ <para>VIDIOC_QUERY_DV_PRESET</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>argp</parameter></term>
+ <listitem>
+ <para></para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The hardware may be able to detect the current DV preset
+automatically similar to sensing the video standard. To do so, applications
+call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a
+ &v4l2-dv-preset; type. Once hardware detects a preset, the same is
+returned in the preset field of &v4l2-dv-preset; When detection is not
+possible or fails, the value V4L2_DV_INVALID is returned</para>
+ </refsect1>
+
+ <refsect1>
+ &return-value;
+
+ <variablelist>
+ <varlistentry>
+ <term><errorcode>EINVAL</errorcode></term>
+ <listitem>
+ <para>This ioctl is not supported.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+</refentry>
+
+<!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "v4l2.sgml"
+indent-tabs-mode: nil
+End:
+-->
@@ -731,6 +731,119 @@
};
/*
+ * V I D E O T I M I N G S D V P R E S E T
+ */
+struct v4l2_dv_preset {
+ __u32 preset;
+ __u32 reserved[4];
+};
+
+/*
+ * D V P R E S E T S E N U M E R A T I O N
+ */
+struct v4l2_dv_enum_preset {
+ __u32 index;
+ __u32 preset;
+ __u8 name[32]; /* Name of the preset timing */
+ __u32 width;
+ __u32 height;
+ __u32 reserved[4];
+};
+
+/*
+ * D V P R E S E T V A L U E S
+ */
+#define V4L2_DV_PRESET_BASE 0x00000000
+#define V4L2_DV_INVALID (V4L2_DV_PRESET_BASE + 0)
+/* BT.1362 */
+#define V4L2_DV_480P59_94 (V4L2_DV_PRESET_BASE + 1)
+/* BT.1362 */
+#define V4L2_DV_576P50 (V4L2_DV_PRESET_BASE + 2)
+/* SMPTE 296M */
+#define V4L2_DV_720P24 (V4L2_DV_PRESET_BASE + 3)
+/* SMPTE 296M */
+#define V4L2_DV_720P25 (V4L2_DV_PRESET_BASE + 4)
+/* SMPTE 296M */
+#define V4L2_DV_720P30 (V4L2_DV_PRESET_BASE + 5)
+/* SMPTE 296M */
+#define V4L2_DV_720P50 (V4L2_DV_PRESET_BASE + 6)
+/* SMPTE 274M */
+#define V4L2_DV_720P59_94 (V4L2_DV_PRESET_BASE + 7)
+/* SMPTE 274M/296M */
+#define V4L2_DV_720P60 (V4L2_DV_PRESET_BASE + 8)
+/* BT.1120/ SMPTE 274M */
+#define V4L2_DV_1080I29_97 (V4L2_DV_PRESET_BASE + 9)
+/* BT.1120/ SMPTE 274M */
+#define V4L2_DV_1080I30 (V4L2_DV_PRESET_BASE + 10)
+/* BT.1120 */
+#define V4L2_DV_1080I25 (V4L2_DV_PRESET_BASE + 11)
+/* SMPTE 296M */
+#define V4L2_DV_1080I50 (V4L2_DV_PRESET_BASE + 12)
+/* SMPTE 296M */
+#define V4L2_DV_1080I60 (V4L2_DV_PRESET_BASE + 13)
+/* SMPTE 296M */
+#define V4L2_DV_1080P24 (V4L2_DV_PRESET_BASE + 14)
+/* SMPTE 296M */
+#define V4L2_DV_1080P25 (V4L2_DV_PRESET_BASE + 15)
+/* SMPTE 296M */
+#define V4L2_DV_1080P30 (V4L2_DV_PRESET_BASE + 16)
+/* BT.1120 */
+#define V4L2_DV_1080P50 (V4L2_DV_PRESET_BASE + 17)
+/* BT.1120 */
+#define V4L2_DV_1080P60 (V4L2_DV_PRESET_BASE + 18)
+
+/*
+ * D V B T T I M I N G S
+ */
+
+/* BT.656/BT.1120 timing data */
+struct v4l2_bt_timings {
+ __u32 width; /* width in pixels */
+ __u32 height; /* height in lines */
+ __u32 interlaced; /* Interlaced or progressive */
+ __u32 polarities; /* Positive or negative polarity */
+ __u64 pixelclock; /* Pixel clock in HZ. Ex. 74.25MHz->74250000 */
+ __u32 hfrontporch; /* Horizpontal front porch in pixels */
+ __u32 hsync; /* Horizontal Sync length in pixels */
+ __u32 hbackporch; /* Horizontal back porch in pixels */
+ __u32 vfrontporch; /* Vertical front porch in pixels */
+ __u32 vsync; /* Vertical Sync length in lines */
+ __u32 vbackporch; /* Vertical back porch in lines */
+ __u32 il_vfrontporch; /* Vertical front porch for bottom field of
+ * interlaced field formats
+ */
+ __u32 il_vsync; /* Vertical sync length for bottom field of
+ * interlaced field formats
+ */
+ __u32 il_vbackporch; /* Vertical back porch for bottom field of
+ * interlaced field formats
+ */
+ __u32 reserved[16];
+};
+
+/* Interlaced or progressive format */
+#define V4L2_DV_PROGRESSIVE 0
+#define V4L2_DV_INTERLACED 1
+
+/* Polarities. If bit is not set, it is assumed to be negative polarity */
+#define V4L2_DV_VSYNC_POS_POL 0x00000001
+#define V4L2_DV_HSYNC_POS_POL 0x00000002
+
+/* BT.656/1120 timing type */
+enum v4l2_dv_timings_type {
+ V4L2_DV_BT_656_1120,
+};
+
+/* DV timings */
+struct v4l2_dv_timings {
+ enum v4l2_dv_timings_type type;
+ union {
+ struct v4l2_bt_timings bt;
+ __u32 reserved[32];
+ };
+};
+
+/*
* V I D E O I N P U T S
*/
struct v4l2_input {
@@ -741,7 +854,8 @@
__u32 tuner; /* Associated tuner */
v4l2_std_id std;
__u32 status;
- __u32 reserved[4];
+ __u32 capabilities;
+ __u32 reserved[3];
};
/* Values for the 'type' field */
@@ -772,6 +886,11 @@
#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
+/* capabilities flags */
+#define V4L2_IN_CAP_PRESETS 0x00000001 /* Supports DV_PRESETS */
+#define V4L2_IN_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports Custom timings */
+#define V4L2_IN_CAP_STD 0x00000004 /* Supports STD */
+
/*
* V I D E O O U T P U T S
*/
@@ -782,13 +901,19 @@
__u32 audioset; /* Associated audios (bitfield) */
__u32 modulator; /* Associated modulator */
v4l2_std_id std;
- __u32 reserved[4];
+ __u32 capabilities;
+ __u32 reserved[3];
};
/* Values for the 'type' field */
#define V4L2_OUTPUT_TYPE_MODULATOR 1
#define V4L2_OUTPUT_TYPE_ANALOG 2
#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
+/* capabilities flags */
+#define V4L2_OUT_CAP_PRESETS 0x00000001 /* Supports DV_PRESETS */
+#define V4L2_OUT_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports Custom timings */
+#define V4L2_OUT_CAP_STD 0x00000004 /* Supports STD */
+
/*
* C O N T R O L S
*/
@@ -1621,6 +1746,13 @@
#endif
#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct v4l2_hw_freq_seek)
+#define VIDIOC_ENUM_DV_PRESETS _IOWR('V', 83, struct v4l2_dv_enum_preset)
+#define VIDIOC_S_DV_PRESET _IOWR('V', 84, struct v4l2_dv_preset)
+#define VIDIOC_G_DV_PRESET _IOWR('V', 85, struct v4l2_dv_preset)
+#define VIDIOC_QUERY_DV_PRESET _IOR('V', 86, struct v4l2_dv_preset)
+#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
+#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
+
/* Reminder: when adding new ioctls please add support for them to
drivers/media/video/v4l2-compat-ioctl32.c as well! */
@@ -60,6 +60,10 @@
v4l/vidioc-enumaudioout.xml \
v4l/vidioc-enuminput.xml \
v4l/vidioc-enumoutput.xml \
+ v4l/vidioc-enum-dv-presets.xml \
+ v4l/vidioc-g-dv-preset.xml \
+ v4l/vidioc-query-dv-preset.xml \
+ v4l/vidioc-g-dv-timings.xml \
v4l/vidioc-enumstd.xml \
v4l/vidioc-g-audio.xml \
v4l/vidioc-g-audioout.xml \
@@ -191,6 +195,12 @@
VIDIOC_ENUMAUDOUT \
VIDIOC_ENUMINPUT \
VIDIOC_ENUMOUTPUT \
+ VIDIOC_ENUM_DV_PRESETS \
+ VIDIOC_QUERY_DV_PRESET \
+ VIDIOC_G_DV_PRESET \
+ VIDIOC_S_DV_PRESET \
+ VIDIOC_G_DV_TIMINGS \
+ VIDIOC_S_DV_TIMINGS \
VIDIOC_ENUMSTD \
VIDIOC_ENUM_FMT \
VIDIOC_ENUM_FRAMEINTERVALS \
@@ -283,6 +293,7 @@
v4l2_priority \
v4l2_tuner_type \
v4l2_preemphasis \
+ v4l2_dv_timings_type \
STRUCTS = \
v4l2_audio \
@@ -333,6 +344,10 @@
v4l2_tuner \
v4l2_vbi_format \
v4l2_window \
+ v4l2_dv_enum_preset \
+ v4l2_dv_preset \
+ v4l2_dv_timings \
+ v4l2_bt_timings \
ERRORS = \
EACCES \