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Diffstat (limited to 'Documentation/DocBook/v4l/vidioc-g-dv-timings.xml')
| -rw-r--r-- | Documentation/DocBook/v4l/vidioc-g-dv-timings.xml | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml b/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml deleted file mode 100644 index d5ec6ab..0000000 --- a/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml +++ /dev/null @@ -1,223 +0,0 @@ -<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 for 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>struct 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 for the input or output, applications use the -<constant>VIDIOC_S_DV_TIMINGS</constant> ioctl and to get the current custom timings, -applications use the <constant>VIDIOC_G_DV_TIMINGS</constant> ioctl. The detailed timing -information is filled in using the structure &v4l2-dv-timings;. These ioctls take -a pointer to the &v4l2-dv-timings; structure as argument. If the ioctl is not supported -or the timing values are not correct, the driver returns &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> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The device is busy and therefore can not change the timings.</para> - </listitem> - </varlistentry> - </variablelist> - - <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 of the active video in pixels</entry> - </row> - <row> - <entry>__u32</entry> - <entry><structfield>height</structfield></entry> - <entry>Height of the active video in lines</entry> - </row> - <row> - <entry>__u32</entry> - <entry><structfield>interlaced</structfield></entry> - <entry>Progressive (0) or interlaced (1)</entry> - </row> - <row> - <entry>__u32</entry> - <entry><structfield>polarities</structfield></entry> - <entry>This is a bit mask that defines polarities of sync signals. -bit 0 (V4L2_DV_VSYNC_POS_POL) is for vertical sync polarity and bit 1 (V4L2_DV_HSYNC_POS_POL) is for horizontal sync polarity. If the bit is set -(1) it is positive polarity and if is cleared (0), it is negative polarity.</entry> - </row> - <row> - <entry>__u64</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>Horizontal 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 lines</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 in lines for bottom field of interlaced field formats</entry> - </row> - <row> - <entry>__u32</entry> - <entry><structfield>il_vsync</structfield></entry> - <entry>Vertical sync length in lines for bottom field of interlaced field formats</entry> - </row> - <row> - <entry>__u32</entry> - <entry><structfield>il_vbackporch</structfield></entry> - <entry>Vertical back porch in lines 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="4"> - &cs-str; - <tbody valign="top"> - <row> - <entry>__u32</entry> - <entry><structfield>type</structfield></entry> - <entry></entry> - <entry>Type of DV timings as listed in <xref linkend="dv-timing-types"/>.</entry> - </row> - <row> - <entry>union</entry> - <entry><structfield></structfield></entry> - <entry></entry> - </row> - <row> - <entry></entry> - <entry>&v4l2-bt-timings;</entry> - <entry><structfield>bt</structfield></entry> - <entry>Timings defined by BT.656/1120 specifications</entry> - </row> - <row> - <entry></entry> - <entry>__u32</entry> - <entry><structfield>reserved</structfield>[32]</entry> - <entry></entry> - </row> - </tbody> - </tgroup> - </table> - - <table pgwide="1" frame="none" id="dv-timing-types"> - <title>DV Timing types</title> - <tgroup cols="3"> - &cs-str; - <tbody valign="top"> - <row> - <entry>Timing type</entry> - <entry>value</entry> - <entry>Description</entry> - </row> - <row> - <entry></entry> - <entry></entry> - <entry></entry> - </row> - <row> - <entry>V4L2_DV_BT_656_1120</entry> - <entry>0</entry> - <entry>BT.656/1120 timings</entry> - </row> - </tbody> - </tgroup> - </table> - </refsect1> -</refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> |