diff options
-rw-r--r-- | Documentation/DocBook/media-entities.tmpl | 18 | ||||
-rw-r--r-- | Documentation/DocBook/media-indices.tmpl | 4 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/common.xml | 35 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/v4l2.xml | 4 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/videodev2.h.xml | 116 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml | 238 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/vidioc-enuminput.xml | 36 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/vidioc-enumoutput.xml | 36 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/vidioc-g-dv-preset.xml | 111 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/vidioc-g-dv-timings.xml | 224 | ||||
-rw-r--r-- | Documentation/DocBook/v4l/vidioc-query-dv-preset.xml | 85 |
11 files changed, 903 insertions, 4 deletions
diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl index bb5ab741220e..c725cb852c54 100644 --- a/Documentation/DocBook/media-entities.tmpl +++ b/Documentation/DocBook/media-entities.tmpl | |||
@@ -23,6 +23,7 @@ | |||
23 | <!ENTITY VIDIOC-ENUMINPUT "<link linkend='vidioc-enuminput'><constant>VIDIOC_ENUMINPUT</constant></link>"> | 23 | <!ENTITY VIDIOC-ENUMINPUT "<link linkend='vidioc-enuminput'><constant>VIDIOC_ENUMINPUT</constant></link>"> |
24 | <!ENTITY VIDIOC-ENUMOUTPUT "<link linkend='vidioc-enumoutput'><constant>VIDIOC_ENUMOUTPUT</constant></link>"> | 24 | <!ENTITY VIDIOC-ENUMOUTPUT "<link linkend='vidioc-enumoutput'><constant>VIDIOC_ENUMOUTPUT</constant></link>"> |
25 | <!ENTITY VIDIOC-ENUMSTD "<link linkend='vidioc-enumstd'><constant>VIDIOC_ENUMSTD</constant></link>"> | 25 | <!ENTITY VIDIOC-ENUMSTD "<link linkend='vidioc-enumstd'><constant>VIDIOC_ENUMSTD</constant></link>"> |
26 | <!ENTITY VIDIOC-ENUM-DV-PRESETS "<link linkend='vidioc-enum-dv-presets'><constant>VIDIOC_ENUM_DV_PRESETS</constant></link>"> | ||
26 | <!ENTITY VIDIOC-ENUM-FMT "<link linkend='vidioc-enum-fmt'><constant>VIDIOC_ENUM_FMT</constant></link>"> | 27 | <!ENTITY VIDIOC-ENUM-FMT "<link linkend='vidioc-enum-fmt'><constant>VIDIOC_ENUM_FMT</constant></link>"> |
27 | <!ENTITY VIDIOC-ENUM-FRAMEINTERVALS "<link linkend='vidioc-enum-frameintervals'><constant>VIDIOC_ENUM_FRAMEINTERVALS</constant></link>"> | 28 | <!ENTITY VIDIOC-ENUM-FRAMEINTERVALS "<link linkend='vidioc-enum-frameintervals'><constant>VIDIOC_ENUM_FRAMEINTERVALS</constant></link>"> |
28 | <!ENTITY VIDIOC-ENUM-FRAMESIZES "<link linkend='vidioc-enum-framesizes'><constant>VIDIOC_ENUM_FRAMESIZES</constant></link>"> | 29 | <!ENTITY VIDIOC-ENUM-FRAMESIZES "<link linkend='vidioc-enum-framesizes'><constant>VIDIOC_ENUM_FRAMESIZES</constant></link>"> |
@@ -30,6 +31,8 @@ | |||
30 | <!ENTITY VIDIOC-G-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_G_AUDOUT</constant></link>"> | 31 | <!ENTITY VIDIOC-G-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_G_AUDOUT</constant></link>"> |
31 | <!ENTITY VIDIOC-G-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_G_CROP</constant></link>"> | 32 | <!ENTITY VIDIOC-G-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_G_CROP</constant></link>"> |
32 | <!ENTITY VIDIOC-G-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_G_CTRL</constant></link>"> | 33 | <!ENTITY VIDIOC-G-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_G_CTRL</constant></link>"> |
34 | <!ENTITY VIDIOC-G-DV-PRESET "<link linkend='vidioc-g-dv-preset'><constant>VIDIOC_G_DV_PRESET</constant></link>"> | ||
35 | <!ENTITY VIDIOC-G-DV-TIMINGS "<link linkend='vidioc-g-dv-timings'><constant>VIDIOC_G_DV_TIMINGS</constant></link>"> | ||
33 | <!ENTITY VIDIOC-G-ENC-INDEX "<link linkend='vidioc-g-enc-index'><constant>VIDIOC_G_ENC_INDEX</constant></link>"> | 36 | <!ENTITY VIDIOC-G-ENC-INDEX "<link linkend='vidioc-g-enc-index'><constant>VIDIOC_G_ENC_INDEX</constant></link>"> |
34 | <!ENTITY VIDIOC-G-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_G_EXT_CTRLS</constant></link>"> | 37 | <!ENTITY VIDIOC-G-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_G_EXT_CTRLS</constant></link>"> |
35 | <!ENTITY VIDIOC-G-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_G_FBUF</constant></link>"> | 38 | <!ENTITY VIDIOC-G-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_G_FBUF</constant></link>"> |
@@ -53,6 +56,7 @@ | |||
53 | <!ENTITY VIDIOC-QUERYCTRL "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYCTRL</constant></link>"> | 56 | <!ENTITY VIDIOC-QUERYCTRL "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYCTRL</constant></link>"> |
54 | <!ENTITY VIDIOC-QUERYMENU "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYMENU</constant></link>"> | 57 | <!ENTITY VIDIOC-QUERYMENU "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYMENU</constant></link>"> |
55 | <!ENTITY VIDIOC-QUERYSTD "<link linkend='vidioc-querystd'><constant>VIDIOC_QUERYSTD</constant></link>"> | 58 | <!ENTITY VIDIOC-QUERYSTD "<link linkend='vidioc-querystd'><constant>VIDIOC_QUERYSTD</constant></link>"> |
59 | <!ENTITY VIDIOC-QUERY-DV-PRESET "<link linkend='vidioc-query-dv-preset'><constant>VIDIOC_QUERY_DV_PRESET</constant></link>"> | ||
56 | <!ENTITY VIDIOC-REQBUFS "<link linkend='vidioc-reqbufs'><constant>VIDIOC_REQBUFS</constant></link>"> | 60 | <!ENTITY VIDIOC-REQBUFS "<link linkend='vidioc-reqbufs'><constant>VIDIOC_REQBUFS</constant></link>"> |
57 | <!ENTITY VIDIOC-STREAMOFF "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMOFF</constant></link>"> | 61 | <!ENTITY VIDIOC-STREAMOFF "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMOFF</constant></link>"> |
58 | <!ENTITY VIDIOC-STREAMON "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMON</constant></link>"> | 62 | <!ENTITY VIDIOC-STREAMON "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMON</constant></link>"> |
@@ -60,6 +64,8 @@ | |||
60 | <!ENTITY VIDIOC-S-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_S_AUDOUT</constant></link>"> | 64 | <!ENTITY VIDIOC-S-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_S_AUDOUT</constant></link>"> |
61 | <!ENTITY VIDIOC-S-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_S_CROP</constant></link>"> | 65 | <!ENTITY VIDIOC-S-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_S_CROP</constant></link>"> |
62 | <!ENTITY VIDIOC-S-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_S_CTRL</constant></link>"> | 66 | <!ENTITY VIDIOC-S-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_S_CTRL</constant></link>"> |
67 | <!ENTITY VIDIOC-S-DV-PRESET "<link linkend='vidioc-g-dv-preset'><constant>VIDIOC_S_DV_PRESET</constant></link>"> | ||
68 | <!ENTITY VIDIOC-S-DV-TIMINGS "<link linkend='vidioc-g-dv-timings'><constant>VIDIOC_S_DV_TIMINGS</constant></link>"> | ||
63 | <!ENTITY VIDIOC-S-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_S_EXT_CTRLS</constant></link>"> | 69 | <!ENTITY VIDIOC-S-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_S_EXT_CTRLS</constant></link>"> |
64 | <!ENTITY VIDIOC-S-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_S_FBUF</constant></link>"> | 70 | <!ENTITY VIDIOC-S-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_S_FBUF</constant></link>"> |
65 | <!ENTITY VIDIOC-S-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_S_FMT</constant></link>"> | 71 | <!ENTITY VIDIOC-S-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_S_FMT</constant></link>"> |
@@ -118,6 +124,7 @@ | |||
118 | <!-- Structures --> | 124 | <!-- Structures --> |
119 | <!ENTITY v4l2-audio "struct <link linkend='v4l2-audio'>v4l2_audio</link>"> | 125 | <!ENTITY v4l2-audio "struct <link linkend='v4l2-audio'>v4l2_audio</link>"> |
120 | <!ENTITY v4l2-audioout "struct <link linkend='v4l2-audioout'>v4l2_audioout</link>"> | 126 | <!ENTITY v4l2-audioout "struct <link linkend='v4l2-audioout'>v4l2_audioout</link>"> |
127 | <!ENTITY v4l2-bt-timings "struct <link linkend='v4l2-bt-timings'>v4l2_bt_timings</link>"> | ||
121 | <!ENTITY v4l2-buffer "struct <link linkend='v4l2-buffer'>v4l2_buffer</link>"> | 128 | <!ENTITY v4l2-buffer "struct <link linkend='v4l2-buffer'>v4l2_buffer</link>"> |
122 | <!ENTITY v4l2-capability "struct <link linkend='v4l2-capability'>v4l2_capability</link>"> | 129 | <!ENTITY v4l2-capability "struct <link linkend='v4l2-capability'>v4l2_capability</link>"> |
123 | <!ENTITY v4l2-captureparm "struct <link linkend='v4l2-captureparm'>v4l2_captureparm</link>"> | 130 | <!ENTITY v4l2-captureparm "struct <link linkend='v4l2-captureparm'>v4l2_captureparm</link>"> |
@@ -128,6 +135,9 @@ | |||
128 | <!ENTITY v4l2-dbg-chip-ident "struct <link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link>"> | 135 | <!ENTITY v4l2-dbg-chip-ident "struct <link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link>"> |
129 | <!ENTITY v4l2-dbg-match "struct <link linkend='v4l2-dbg-match'>v4l2_dbg_match</link>"> | 136 | <!ENTITY v4l2-dbg-match "struct <link linkend='v4l2-dbg-match'>v4l2_dbg_match</link>"> |
130 | <!ENTITY v4l2-dbg-register "struct <link linkend='v4l2-dbg-register'>v4l2_dbg_register</link>"> | 137 | <!ENTITY v4l2-dbg-register "struct <link linkend='v4l2-dbg-register'>v4l2_dbg_register</link>"> |
138 | <!ENTITY v4l2-dv-enum-preset "struct <link linkend='v4l2-dv-enum-preset'>v4l2_dv_enum_preset</link>"> | ||
139 | <!ENTITY v4l2-dv-preset "struct <link linkend='v4l2-dv-preset'>v4l2_dv_preset</link>"> | ||
140 | <!ENTITY v4l2-dv-timings "struct <link linkend='v4l2-dv-timings'>v4l2_dv_timings</link>"> | ||
131 | <!ENTITY v4l2-enc-idx "struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link>"> | 141 | <!ENTITY v4l2-enc-idx "struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link>"> |
132 | <!ENTITY v4l2-enc-idx-entry "struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link>"> | 142 | <!ENTITY v4l2-enc-idx-entry "struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link>"> |
133 | <!ENTITY v4l2-encoder-cmd "struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link>"> | 143 | <!ENTITY v4l2-encoder-cmd "struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link>"> |
@@ -243,6 +253,10 @@ | |||
243 | <!ENTITY sub-enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml"> | 253 | <!ENTITY sub-enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml"> |
244 | <!ENTITY sub-enuminput SYSTEM "v4l/vidioc-enuminput.xml"> | 254 | <!ENTITY sub-enuminput SYSTEM "v4l/vidioc-enuminput.xml"> |
245 | <!ENTITY sub-enumoutput SYSTEM "v4l/vidioc-enumoutput.xml"> | 255 | <!ENTITY sub-enumoutput SYSTEM "v4l/vidioc-enumoutput.xml"> |
256 | <!ENTITY sub-enum-dv-presets SYSTEM "v4l/vidioc-enum-dv-presets.xml"> | ||
257 | <!ENTITY sub-g-dv-preset SYSTEM "v4l/vidioc-g-dv-preset.xml"> | ||
258 | <!ENTITY sub-query-dv-preset SYSTEM "v4l/vidioc-query-dv-preset.xml"> | ||
259 | <!ENTITY sub-g-dv-timings SYSTEM "v4l/vidioc-g-dv-timings.xml"> | ||
246 | <!ENTITY sub-enumstd SYSTEM "v4l/vidioc-enumstd.xml"> | 260 | <!ENTITY sub-enumstd SYSTEM "v4l/vidioc-enumstd.xml"> |
247 | <!ENTITY sub-g-audio SYSTEM "v4l/vidioc-g-audio.xml"> | 261 | <!ENTITY sub-g-audio SYSTEM "v4l/vidioc-g-audio.xml"> |
248 | <!ENTITY sub-g-audioout SYSTEM "v4l/vidioc-g-audioout.xml"> | 262 | <!ENTITY sub-g-audioout SYSTEM "v4l/vidioc-g-audioout.xml"> |
@@ -333,6 +347,10 @@ | |||
333 | <!ENTITY enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml"> | 347 | <!ENTITY enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml"> |
334 | <!ENTITY enuminput SYSTEM "v4l/vidioc-enuminput.xml"> | 348 | <!ENTITY enuminput SYSTEM "v4l/vidioc-enuminput.xml"> |
335 | <!ENTITY enumoutput SYSTEM "v4l/vidioc-enumoutput.xml"> | 349 | <!ENTITY enumoutput SYSTEM "v4l/vidioc-enumoutput.xml"> |
350 | <!ENTITY enum-dv-presets SYSTEM "v4l/vidioc-enum-dv-presets.xml"> | ||
351 | <!ENTITY g-dv-preset SYSTEM "v4l/vidioc-g-dv-preset.xml"> | ||
352 | <!ENTITY query-dv-preset SYSTEM "v4l/vidioc-query-dv-preset.xml"> | ||
353 | <!ENTITY g-dv-timings SYSTEM "v4l/vidioc-g-dv-timings.xml"> | ||
336 | <!ENTITY enumstd SYSTEM "v4l/vidioc-enumstd.xml"> | 354 | <!ENTITY enumstd SYSTEM "v4l/vidioc-enumstd.xml"> |
337 | <!ENTITY g-audio SYSTEM "v4l/vidioc-g-audio.xml"> | 355 | <!ENTITY g-audio SYSTEM "v4l/vidioc-g-audio.xml"> |
338 | <!ENTITY g-audioout SYSTEM "v4l/vidioc-g-audioout.xml"> | 356 | <!ENTITY g-audioout SYSTEM "v4l/vidioc-g-audioout.xml"> |
diff --git a/Documentation/DocBook/media-indices.tmpl b/Documentation/DocBook/media-indices.tmpl index 9e30a236d74f..78d6031de001 100644 --- a/Documentation/DocBook/media-indices.tmpl +++ b/Documentation/DocBook/media-indices.tmpl | |||
@@ -36,6 +36,7 @@ | |||
36 | <indexentry><primaryie>enum <link linkend='v4l2-preemphasis'>v4l2_preemphasis</link></primaryie></indexentry> | 36 | <indexentry><primaryie>enum <link linkend='v4l2-preemphasis'>v4l2_preemphasis</link></primaryie></indexentry> |
37 | <indexentry><primaryie>struct <link linkend='v4l2-audio'>v4l2_audio</link></primaryie></indexentry> | 37 | <indexentry><primaryie>struct <link linkend='v4l2-audio'>v4l2_audio</link></primaryie></indexentry> |
38 | <indexentry><primaryie>struct <link linkend='v4l2-audioout'>v4l2_audioout</link></primaryie></indexentry> | 38 | <indexentry><primaryie>struct <link linkend='v4l2-audioout'>v4l2_audioout</link></primaryie></indexentry> |
39 | <indexentry><primaryie>struct <link linkend='v4l2-bt-timings'>v4l2_bt_timings</link></primaryie></indexentry> | ||
39 | <indexentry><primaryie>struct <link linkend='v4l2-buffer'>v4l2_buffer</link></primaryie></indexentry> | 40 | <indexentry><primaryie>struct <link linkend='v4l2-buffer'>v4l2_buffer</link></primaryie></indexentry> |
40 | <indexentry><primaryie>struct <link linkend='v4l2-capability'>v4l2_capability</link></primaryie></indexentry> | 41 | <indexentry><primaryie>struct <link linkend='v4l2-capability'>v4l2_capability</link></primaryie></indexentry> |
41 | <indexentry><primaryie>struct <link linkend='v4l2-captureparm'>v4l2_captureparm</link></primaryie></indexentry> | 42 | <indexentry><primaryie>struct <link linkend='v4l2-captureparm'>v4l2_captureparm</link></primaryie></indexentry> |
@@ -46,6 +47,9 @@ | |||
46 | <indexentry><primaryie>struct <link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link></primaryie></indexentry> | 47 | <indexentry><primaryie>struct <link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link></primaryie></indexentry> |
47 | <indexentry><primaryie>struct <link linkend='v4l2-dbg-match'>v4l2_dbg_match</link></primaryie></indexentry> | 48 | <indexentry><primaryie>struct <link linkend='v4l2-dbg-match'>v4l2_dbg_match</link></primaryie></indexentry> |
48 | <indexentry><primaryie>struct <link linkend='v4l2-dbg-register'>v4l2_dbg_register</link></primaryie></indexentry> | 49 | <indexentry><primaryie>struct <link linkend='v4l2-dbg-register'>v4l2_dbg_register</link></primaryie></indexentry> |
50 | <indexentry><primaryie>struct <link linkend='v4l2-dv-enum-preset'>v4l2_dv_enum_preset</link></primaryie></indexentry> | ||
51 | <indexentry><primaryie>struct <link linkend='v4l2-dv-preset'>v4l2_dv_preset</link></primaryie></indexentry> | ||
52 | <indexentry><primaryie>struct <link linkend='v4l2-dv-timings'>v4l2_dv_timings</link></primaryie></indexentry> | ||
49 | <indexentry><primaryie>struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link></primaryie></indexentry> | 53 | <indexentry><primaryie>struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link></primaryie></indexentry> |
50 | <indexentry><primaryie>struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link></primaryie></indexentry> | 54 | <indexentry><primaryie>struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link></primaryie></indexentry> |
51 | <indexentry><primaryie>struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link></primaryie></indexentry> | 55 | <indexentry><primaryie>struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link></primaryie></indexentry> |
diff --git a/Documentation/DocBook/v4l/common.xml b/Documentation/DocBook/v4l/common.xml index b1a81d246d58..c65f0ac9b6ee 100644 --- a/Documentation/DocBook/v4l/common.xml +++ b/Documentation/DocBook/v4l/common.xml | |||
@@ -716,6 +716,41 @@ if (-1 == ioctl (fd, &VIDIOC-S-STD;, &std_id)) { | |||
716 | } | 716 | } |
717 | </programlisting> | 717 | </programlisting> |
718 | </example> | 718 | </example> |
719 | <section id="dv-timings"> | ||
720 | <title>Digital Video (DV) Timings</title> | ||
721 | <para> | ||
722 | The video standards discussed so far has been dealing with Analog TV and the | ||
723 | corresponding video timings. Today there are many more different hardware interfaces | ||
724 | such as High Definition TV interfaces (HDMI), VGA, DVI connectors etc., that carry | ||
725 | video signals and there is a need to extend the API to select the video timings | ||
726 | for these interfaces. Since it is not possible to extend the &v4l2-std-id; due to | ||
727 | the limited bits available, a new set of IOCTLs is added to set/get video timings at | ||
728 | the input and output: </para><itemizedlist> | ||
729 | <listitem> | ||
730 | <para>DV Presets: Digital Video (DV) presets. These are IDs representing a | ||
731 | video timing at the input/output. Presets are pre-defined timings implemented | ||
732 | by the hardware according to video standards. A __u32 data type is used to represent | ||
733 | a preset unlike the bit mask that is used in &v4l2-std-id; allowing future extensions | ||
734 | to support as many different presets as needed.</para> | ||
735 | </listitem> | ||
736 | <listitem> | ||
737 | <para>Custom DV Timings: This will allow applications to define more detailed | ||
738 | custom video timings for the interface. This includes parameters such as width, height, | ||
739 | polarities, frontporch, backporch etc. | ||
740 | </para> | ||
741 | </listitem> | ||
742 | </itemizedlist> | ||
743 | <para>To enumerate and query the attributes of DV presets supported by a device, | ||
744 | applications use the &VIDIOC-ENUM-DV-PRESETS; ioctl. To get the current DV preset, | ||
745 | applications use the &VIDIOC-G-DV-PRESET; ioctl and to set a preset they use the | ||
746 | &VIDIOC-S-DV-PRESET; ioctl.</para> | ||
747 | <para>To set custom DV timings for the device, applications use the | ||
748 | &VIDIOC-S-DV-TIMINGS; ioctl and to get current custom DV timings they use the | ||
749 | &VIDIOC-G-DV-TIMINGS; ioctl.</para> | ||
750 | <para>Applications can make use of the <xref linkend="input-capabilities" /> and | ||
751 | <xref linkend="output-capabilities"/> flags to decide what ioctls are available to set the | ||
752 | video timings for the device.</para> | ||
753 | </section> | ||
719 | </section> | 754 | </section> |
720 | 755 | ||
721 | &sub-controls; | 756 | &sub-controls; |
diff --git a/Documentation/DocBook/v4l/v4l2.xml b/Documentation/DocBook/v4l/v4l2.xml index 937b4157a5d0..77b7dd8a3b5f 100644 --- a/Documentation/DocBook/v4l/v4l2.xml +++ b/Documentation/DocBook/v4l/v4l2.xml | |||
@@ -411,6 +411,7 @@ and discussions on the V4L mailing list.</revremark> | |||
411 | &sub-encoder-cmd; | 411 | &sub-encoder-cmd; |
412 | &sub-enumaudio; | 412 | &sub-enumaudio; |
413 | &sub-enumaudioout; | 413 | &sub-enumaudioout; |
414 | &sub-enum-dv-presets; | ||
414 | &sub-enum-fmt; | 415 | &sub-enum-fmt; |
415 | &sub-enum-framesizes; | 416 | &sub-enum-framesizes; |
416 | &sub-enum-frameintervals; | 417 | &sub-enum-frameintervals; |
@@ -421,6 +422,8 @@ and discussions on the V4L mailing list.</revremark> | |||
421 | &sub-g-audioout; | 422 | &sub-g-audioout; |
422 | &sub-g-crop; | 423 | &sub-g-crop; |
423 | &sub-g-ctrl; | 424 | &sub-g-ctrl; |
425 | &sub-g-dv-preset; | ||
426 | &sub-g-dv-timings; | ||
424 | &sub-g-enc-index; | 427 | &sub-g-enc-index; |
425 | &sub-g-ext-ctrls; | 428 | &sub-g-ext-ctrls; |
426 | &sub-g-fbuf; | 429 | &sub-g-fbuf; |
@@ -441,6 +444,7 @@ and discussions on the V4L mailing list.</revremark> | |||
441 | &sub-querybuf; | 444 | &sub-querybuf; |
442 | &sub-querycap; | 445 | &sub-querycap; |
443 | &sub-queryctrl; | 446 | &sub-queryctrl; |
447 | &sub-query-dv-preset; | ||
444 | &sub-querystd; | 448 | &sub-querystd; |
445 | &sub-reqbufs; | 449 | &sub-reqbufs; |
446 | &sub-s-hw-freq-seek; | 450 | &sub-s-hw-freq-seek; |
diff --git a/Documentation/DocBook/v4l/videodev2.h.xml b/Documentation/DocBook/v4l/videodev2.h.xml index 3e282ed9f593..068325940658 100644 --- a/Documentation/DocBook/v4l/videodev2.h.xml +++ b/Documentation/DocBook/v4l/videodev2.h.xml | |||
@@ -734,6 +734,99 @@ struct <link linkend="v4l2-standard">v4l2_standard</link> { | |||
734 | }; | 734 | }; |
735 | 735 | ||
736 | /* | 736 | /* |
737 | * V I D E O T I M I N G S D V P R E S E T | ||
738 | */ | ||
739 | struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link> { | ||
740 | __u32 preset; | ||
741 | __u32 reserved[4]; | ||
742 | }; | ||
743 | |||
744 | /* | ||
745 | * D V P R E S E T S E N U M E R A T I O N | ||
746 | */ | ||
747 | struct <link linkend="v4l2-dv-enum-preset">v4l2_dv_enum_preset</link> { | ||
748 | __u32 index; | ||
749 | __u32 preset; | ||
750 | __u8 name[32]; /* Name of the preset timing */ | ||
751 | __u32 width; | ||
752 | __u32 height; | ||
753 | __u32 reserved[4]; | ||
754 | }; | ||
755 | |||
756 | /* | ||
757 | * D V P R E S E T V A L U E S | ||
758 | */ | ||
759 | #define V4L2_DV_INVALID 0 | ||
760 | #define V4L2_DV_480P59_94 1 /* BT.1362 */ | ||
761 | #define V4L2_DV_576P50 2 /* BT.1362 */ | ||
762 | #define V4L2_DV_720P24 3 /* SMPTE 296M */ | ||
763 | #define V4L2_DV_720P25 4 /* SMPTE 296M */ | ||
764 | #define V4L2_DV_720P30 5 /* SMPTE 296M */ | ||
765 | #define V4L2_DV_720P50 6 /* SMPTE 296M */ | ||
766 | #define V4L2_DV_720P59_94 7 /* SMPTE 274M */ | ||
767 | #define V4L2_DV_720P60 8 /* SMPTE 274M/296M */ | ||
768 | #define V4L2_DV_1080I29_97 9 /* BT.1120/ SMPTE 274M */ | ||
769 | #define V4L2_DV_1080I30 10 /* BT.1120/ SMPTE 274M */ | ||
770 | #define V4L2_DV_1080I25 11 /* BT.1120 */ | ||
771 | #define V4L2_DV_1080I50 12 /* SMPTE 296M */ | ||
772 | #define V4L2_DV_1080I60 13 /* SMPTE 296M */ | ||
773 | #define V4L2_DV_1080P24 14 /* SMPTE 296M */ | ||
774 | #define V4L2_DV_1080P25 15 /* SMPTE 296M */ | ||
775 | #define V4L2_DV_1080P30 16 /* SMPTE 296M */ | ||
776 | #define V4L2_DV_1080P50 17 /* BT.1120 */ | ||
777 | #define V4L2_DV_1080P60 18 /* BT.1120 */ | ||
778 | |||
779 | /* | ||
780 | * D V B T T I M I N G S | ||
781 | */ | ||
782 | |||
783 | /* BT.656/BT.1120 timing data */ | ||
784 | struct <link linkend="v4l2-bt-timings">v4l2_bt_timings</link> { | ||
785 | __u32 width; /* width in pixels */ | ||
786 | __u32 height; /* height in lines */ | ||
787 | __u32 interlaced; /* Interlaced or progressive */ | ||
788 | __u32 polarities; /* Positive or negative polarity */ | ||
789 | __u64 pixelclock; /* Pixel clock in HZ. Ex. 74.25MHz->74250000 */ | ||
790 | __u32 hfrontporch; /* Horizpontal front porch in pixels */ | ||
791 | __u32 hsync; /* Horizontal Sync length in pixels */ | ||
792 | __u32 hbackporch; /* Horizontal back porch in pixels */ | ||
793 | __u32 vfrontporch; /* Vertical front porch in pixels */ | ||
794 | __u32 vsync; /* Vertical Sync length in lines */ | ||
795 | __u32 vbackporch; /* Vertical back porch in lines */ | ||
796 | __u32 il_vfrontporch; /* Vertical front porch for bottom field of | ||
797 | * interlaced field formats | ||
798 | */ | ||
799 | __u32 il_vsync; /* Vertical sync length for bottom field of | ||
800 | * interlaced field formats | ||
801 | */ | ||
802 | __u32 il_vbackporch; /* Vertical back porch for bottom field of | ||
803 | * interlaced field formats | ||
804 | */ | ||
805 | __u32 reserved[16]; | ||
806 | } __attribute__ ((packed)); | ||
807 | |||
808 | /* Interlaced or progressive format */ | ||
809 | #define V4L2_DV_PROGRESSIVE 0 | ||
810 | #define V4L2_DV_INTERLACED 1 | ||
811 | |||
812 | /* Polarities. If bit is not set, it is assumed to be negative polarity */ | ||
813 | #define V4L2_DV_VSYNC_POS_POL 0x00000001 | ||
814 | #define V4L2_DV_HSYNC_POS_POL 0x00000002 | ||
815 | |||
816 | |||
817 | /* DV timings */ | ||
818 | struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link> { | ||
819 | __u32 type; | ||
820 | union { | ||
821 | struct <link linkend="v4l2-bt-timings">v4l2_bt_timings</link> bt; | ||
822 | __u32 reserved[32]; | ||
823 | }; | ||
824 | } __attribute__ ((packed)); | ||
825 | |||
826 | /* Values for the type field */ | ||
827 | #define V4L2_DV_BT_656_1120 0 /* BT.656/1120 timing type */ | ||
828 | |||
829 | /* | ||
737 | * V I D E O I N P U T S | 830 | * V I D E O I N P U T S |
738 | */ | 831 | */ |
739 | struct <link linkend="v4l2-input">v4l2_input</link> { | 832 | struct <link linkend="v4l2-input">v4l2_input</link> { |
@@ -744,7 +837,8 @@ struct <link linkend="v4l2-input">v4l2_input</link> { | |||
744 | __u32 tuner; /* Associated tuner */ | 837 | __u32 tuner; /* Associated tuner */ |
745 | v4l2_std_id std; | 838 | v4l2_std_id std; |
746 | __u32 status; | 839 | __u32 status; |
747 | __u32 reserved[4]; | 840 | __u32 capabilities; |
841 | __u32 reserved[3]; | ||
748 | }; | 842 | }; |
749 | 843 | ||
750 | /* Values for the 'type' field */ | 844 | /* Values for the 'type' field */ |
@@ -775,6 +869,11 @@ struct <link linkend="v4l2-input">v4l2_input</link> { | |||
775 | #define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */ | 869 | #define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */ |
776 | #define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */ | 870 | #define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */ |
777 | 871 | ||
872 | /* capabilities flags */ | ||
873 | #define V4L2_IN_CAP_PRESETS 0x00000001 /* Supports S_DV_PRESET */ | ||
874 | #define V4L2_IN_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */ | ||
875 | #define V4L2_IN_CAP_STD 0x00000004 /* Supports S_STD */ | ||
876 | |||
778 | /* | 877 | /* |
779 | * V I D E O O U T P U T S | 878 | * V I D E O O U T P U T S |
780 | */ | 879 | */ |
@@ -785,13 +884,19 @@ struct <link linkend="v4l2-output">v4l2_output</link> { | |||
785 | __u32 audioset; /* Associated audios (bitfield) */ | 884 | __u32 audioset; /* Associated audios (bitfield) */ |
786 | __u32 modulator; /* Associated modulator */ | 885 | __u32 modulator; /* Associated modulator */ |
787 | v4l2_std_id std; | 886 | v4l2_std_id std; |
788 | __u32 reserved[4]; | 887 | __u32 capabilities; |
888 | __u32 reserved[3]; | ||
789 | }; | 889 | }; |
790 | /* Values for the 'type' field */ | 890 | /* Values for the 'type' field */ |
791 | #define V4L2_OUTPUT_TYPE_MODULATOR 1 | 891 | #define V4L2_OUTPUT_TYPE_MODULATOR 1 |
792 | #define V4L2_OUTPUT_TYPE_ANALOG 2 | 892 | #define V4L2_OUTPUT_TYPE_ANALOG 2 |
793 | #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3 | 893 | #define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3 |
794 | 894 | ||
895 | /* capabilities flags */ | ||
896 | #define V4L2_OUT_CAP_PRESETS 0x00000001 /* Supports S_DV_PRESET */ | ||
897 | #define V4L2_OUT_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */ | ||
898 | #define V4L2_OUT_CAP_STD 0x00000004 /* Supports S_STD */ | ||
899 | |||
795 | /* | 900 | /* |
796 | * C O N T R O L S | 901 | * C O N T R O L S |
797 | */ | 902 | */ |
@@ -1626,6 +1731,13 @@ struct <link linkend="v4l2-dbg-chip-ident">v4l2_dbg_chip_ident</link> { | |||
1626 | #endif | 1731 | #endif |
1627 | 1732 | ||
1628 | #define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct <link linkend="v4l2-hw-freq-seek">v4l2_hw_freq_seek</link>) | 1733 | #define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct <link linkend="v4l2-hw-freq-seek">v4l2_hw_freq_seek</link>) |
1734 | #define VIDIOC_ENUM_DV_PRESETS _IOWR('V', 83, struct <link linkend="v4l2-dv-enum-preset">v4l2_dv_enum_preset</link>) | ||
1735 | #define VIDIOC_S_DV_PRESET _IOWR('V', 84, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>) | ||
1736 | #define VIDIOC_G_DV_PRESET _IOWR('V', 85, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>) | ||
1737 | #define VIDIOC_QUERY_DV_PRESET _IOR('V', 86, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>) | ||
1738 | #define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link>) | ||
1739 | #define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link>) | ||
1740 | |||
1629 | /* Reminder: when adding new ioctls please add support for them to | 1741 | /* Reminder: when adding new ioctls please add support for them to |
1630 | drivers/media/video/v4l2-compat-ioctl32.c as well! */ | 1742 | drivers/media/video/v4l2-compat-ioctl32.c as well! */ |
1631 | 1743 | ||
diff --git a/Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml b/Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml new file mode 100644 index 000000000000..1d31427edd1b --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml | |||
@@ -0,0 +1,238 @@ | |||
1 | <refentry id="vidioc-enum-dv-presets"> | ||
2 | <refmeta> | ||
3 | <refentrytitle>ioctl VIDIOC_ENUM_DV_PRESETS</refentrytitle> | ||
4 | &manvol; | ||
5 | </refmeta> | ||
6 | |||
7 | <refnamediv> | ||
8 | <refname>VIDIOC_ENUM_DV_PRESETS</refname> | ||
9 | <refpurpose>Enumerate supported Digital Video presets</refpurpose> | ||
10 | </refnamediv> | ||
11 | |||
12 | <refsynopsisdiv> | ||
13 | <funcsynopsis> | ||
14 | <funcprototype> | ||
15 | <funcdef>int <function>ioctl</function></funcdef> | ||
16 | <paramdef>int <parameter>fd</parameter></paramdef> | ||
17 | <paramdef>int <parameter>request</parameter></paramdef> | ||
18 | <paramdef>struct v4l2_dv_enum_preset *<parameter>argp</parameter></paramdef> | ||
19 | </funcprototype> | ||
20 | </funcsynopsis> | ||
21 | </refsynopsisdiv> | ||
22 | |||
23 | <refsect1> | ||
24 | <title>Arguments</title> | ||
25 | |||
26 | <variablelist> | ||
27 | <varlistentry> | ||
28 | <term><parameter>fd</parameter></term> | ||
29 | <listitem> | ||
30 | <para>&fd;</para> | ||
31 | </listitem> | ||
32 | </varlistentry> | ||
33 | <varlistentry> | ||
34 | <term><parameter>request</parameter></term> | ||
35 | <listitem> | ||
36 | <para>VIDIOC_ENUM_DV_PRESETS</para> | ||
37 | </listitem> | ||
38 | </varlistentry> | ||
39 | <varlistentry> | ||
40 | <term><parameter>argp</parameter></term> | ||
41 | <listitem> | ||
42 | <para></para> | ||
43 | </listitem> | ||
44 | </varlistentry> | ||
45 | </variablelist> | ||
46 | </refsect1> | ||
47 | |||
48 | <refsect1> | ||
49 | <title>Description</title> | ||
50 | |||
51 | <para>To query the attributes of a DV preset, applications initialize the | ||
52 | <structfield>index</structfield> field and zero the reserved array of &v4l2-dv-enum-preset; | ||
53 | and call the <constant>VIDIOC_ENUM_DV_PRESETS</constant> ioctl with a pointer to this | ||
54 | structure. Drivers fill the rest of the structure or return an | ||
55 | &EINVAL; when the index is out of bounds. To enumerate all DV Presets supported, | ||
56 | applications shall begin at index zero, incrementing by one until the | ||
57 | driver returns <errorcode>EINVAL</errorcode>. Drivers may enumerate a | ||
58 | different set of DV presets after switching the video input or | ||
59 | output.</para> | ||
60 | |||
61 | <table pgwide="1" frame="none" id="v4l2-dv-enum-preset"> | ||
62 | <title>struct <structname>v4l2_dv_enum_presets</structname></title> | ||
63 | <tgroup cols="3"> | ||
64 | &cs-str; | ||
65 | <tbody valign="top"> | ||
66 | <row> | ||
67 | <entry>__u32</entry> | ||
68 | <entry><structfield>index</structfield></entry> | ||
69 | <entry>Number of the DV preset, set by the | ||
70 | application.</entry> | ||
71 | </row> | ||
72 | <row> | ||
73 | <entry>__u32</entry> | ||
74 | <entry><structfield>preset</structfield></entry> | ||
75 | <entry>This field identifies one of the DV preset values listed in <xref linkend="v4l2-dv-presets-vals"/>.</entry> | ||
76 | </row> | ||
77 | <row> | ||
78 | <entry>__u8</entry> | ||
79 | <entry><structfield>name</structfield>[24]</entry> | ||
80 | <entry>Name of the preset, a NUL-terminated ASCII string, for example: "720P-60", "1080I-60". This information is | ||
81 | intended for the user.</entry> | ||
82 | </row> | ||
83 | <row> | ||
84 | <entry>__u32</entry> | ||
85 | <entry><structfield>width</structfield></entry> | ||
86 | <entry>Width of the active video in pixels for the DV preset.</entry> | ||
87 | </row> | ||
88 | <row> | ||
89 | <entry>__u32</entry> | ||
90 | <entry><structfield>height</structfield></entry> | ||
91 | <entry>Height of the active video in lines for the DV preset.</entry> | ||
92 | </row> | ||
93 | <row> | ||
94 | <entry>__u32</entry> | ||
95 | <entry><structfield>reserved</structfield>[4]</entry> | ||
96 | <entry>Reserved for future extensions. Drivers must set the array to zero.</entry> | ||
97 | </row> | ||
98 | </tbody> | ||
99 | </tgroup> | ||
100 | </table> | ||
101 | |||
102 | <table pgwide="1" frame="none" id="v4l2-dv-presets-vals"> | ||
103 | <title>struct <structname>DV Presets</structname></title> | ||
104 | <tgroup cols="3"> | ||
105 | &cs-str; | ||
106 | <tbody valign="top"> | ||
107 | <row> | ||
108 | <entry>Preset</entry> | ||
109 | <entry>Preset value</entry> | ||
110 | <entry>Description</entry> | ||
111 | </row> | ||
112 | <row> | ||
113 | <entry></entry> | ||
114 | <entry></entry> | ||
115 | <entry></entry> | ||
116 | </row> | ||
117 | <row> | ||
118 | <entry>V4L2_DV_INVALID</entry> | ||
119 | <entry>0</entry> | ||
120 | <entry>Invalid preset value.</entry> | ||
121 | </row> | ||
122 | <row> | ||
123 | <entry>V4L2_DV_480P59_94</entry> | ||
124 | <entry>1</entry> | ||
125 | <entry>720x480 progressive video at 59.94 fps as per BT.1362.</entry> | ||
126 | </row> | ||
127 | <row> | ||
128 | <entry>V4L2_DV_576P50</entry> | ||
129 | <entry>2</entry> | ||
130 | <entry>720x576 progressive video at 50 fps as per BT.1362.</entry> | ||
131 | </row> | ||
132 | <row> | ||
133 | <entry>V4L2_DV_720P24</entry> | ||
134 | <entry>3</entry> | ||
135 | <entry>1280x720 progressive video at 24 fps as per SMPTE 296M.</entry> | ||
136 | </row> | ||
137 | <row> | ||
138 | <entry>V4L2_DV_720P25</entry> | ||
139 | <entry>4</entry> | ||
140 | <entry>1280x720 progressive video at 25 fps as per SMPTE 296M.</entry> | ||
141 | </row> | ||
142 | <row> | ||
143 | <entry>V4L2_DV_720P30</entry> | ||
144 | <entry>5</entry> | ||
145 | <entry>1280x720 progressive video at 30 fps as per SMPTE 296M.</entry> | ||
146 | </row> | ||
147 | <row> | ||
148 | <entry>V4L2_DV_720P50</entry> | ||
149 | <entry>6</entry> | ||
150 | <entry>1280x720 progressive video at 50 fps as per SMPTE 296M.</entry> | ||
151 | </row> | ||
152 | <row> | ||
153 | <entry>V4L2_DV_720P59_94</entry> | ||
154 | <entry>7</entry> | ||
155 | <entry>1280x720 progressive video at 59.94 fps as per SMPTE 274M.</entry> | ||
156 | </row> | ||
157 | <row> | ||
158 | <entry>V4L2_DV_720P60</entry> | ||
159 | <entry>8</entry> | ||
160 | <entry>1280x720 progressive video at 60 fps as per SMPTE 274M/296M.</entry> | ||
161 | </row> | ||
162 | <row> | ||
163 | <entry>V4L2_DV_1080I29_97</entry> | ||
164 | <entry>9</entry> | ||
165 | <entry>1920x1080 interlaced video at 29.97 fps as per BT.1120/SMPTE 274M.</entry> | ||
166 | </row> | ||
167 | <row> | ||
168 | <entry>V4L2_DV_1080I30</entry> | ||
169 | <entry>10</entry> | ||
170 | <entry>1920x1080 interlaced video at 30 fps as per BT.1120/SMPTE 274M.</entry> | ||
171 | </row> | ||
172 | <row> | ||
173 | <entry>V4L2_DV_1080I25</entry> | ||
174 | <entry>11</entry> | ||
175 | <entry>1920x1080 interlaced video at 25 fps as per BT.1120.</entry> | ||
176 | </row> | ||
177 | <row> | ||
178 | <entry>V4L2_DV_1080I50</entry> | ||
179 | <entry>12</entry> | ||
180 | <entry>1920x1080 interlaced video at 50 fps as per SMPTE 296M.</entry> | ||
181 | </row> | ||
182 | <row> | ||
183 | <entry>V4L2_DV_1080I60</entry> | ||
184 | <entry>13</entry> | ||
185 | <entry>1920x1080 interlaced video at 60 fps as per SMPTE 296M.</entry> | ||
186 | </row> | ||
187 | <row> | ||
188 | <entry>V4L2_DV_1080P24</entry> | ||
189 | <entry>14</entry> | ||
190 | <entry>1920x1080 progressive video at 24 fps as per SMPTE 296M.</entry> | ||
191 | </row> | ||
192 | <row> | ||
193 | <entry>V4L2_DV_1080P25</entry> | ||
194 | <entry>15</entry> | ||
195 | <entry>1920x1080 progressive video at 25 fps as per SMPTE 296M.</entry> | ||
196 | </row> | ||
197 | <row> | ||
198 | <entry>V4L2_DV_1080P30</entry> | ||
199 | <entry>16</entry> | ||
200 | <entry>1920x1080 progressive video at 30 fps as per SMPTE 296M.</entry> | ||
201 | </row> | ||
202 | <row> | ||
203 | <entry>V4L2_DV_1080P50</entry> | ||
204 | <entry>17</entry> | ||
205 | <entry>1920x1080 progressive video at 50 fps as per BT.1120.</entry> | ||
206 | </row> | ||
207 | <row> | ||
208 | <entry>V4L2_DV_1080P60</entry> | ||
209 | <entry>18</entry> | ||
210 | <entry>1920x1080 progressive video at 60 fps as per BT.1120.</entry> | ||
211 | </row> | ||
212 | </tbody> | ||
213 | </tgroup> | ||
214 | </table> | ||
215 | </refsect1> | ||
216 | |||
217 | <refsect1> | ||
218 | &return-value; | ||
219 | |||
220 | <variablelist> | ||
221 | <varlistentry> | ||
222 | <term><errorcode>EINVAL</errorcode></term> | ||
223 | <listitem> | ||
224 | <para>The &v4l2-dv-enum-preset; <structfield>index</structfield> | ||
225 | is out of bounds.</para> | ||
226 | </listitem> | ||
227 | </varlistentry> | ||
228 | </variablelist> | ||
229 | </refsect1> | ||
230 | </refentry> | ||
231 | |||
232 | <!-- | ||
233 | Local Variables: | ||
234 | mode: sgml | ||
235 | sgml-parent-document: "v4l2.sgml" | ||
236 | indent-tabs-mode: nil | ||
237 | End: | ||
238 | --> | ||
diff --git a/Documentation/DocBook/v4l/vidioc-enuminput.xml b/Documentation/DocBook/v4l/vidioc-enuminput.xml index 414856b82473..71b868e2fb8f 100644 --- a/Documentation/DocBook/v4l/vidioc-enuminput.xml +++ b/Documentation/DocBook/v4l/vidioc-enuminput.xml | |||
@@ -124,7 +124,13 @@ current input.</entry> | |||
124 | </row> | 124 | </row> |
125 | <row> | 125 | <row> |
126 | <entry>__u32</entry> | 126 | <entry>__u32</entry> |
127 | <entry><structfield>reserved</structfield>[4]</entry> | 127 | <entry><structfield>capabilities</structfield></entry> |
128 | <entry>This field provides capabilities for the | ||
129 | input. See <xref linkend="input-capabilities" /> for flags.</entry> | ||
130 | </row> | ||
131 | <row> | ||
132 | <entry>__u32</entry> | ||
133 | <entry><structfield>reserved</structfield>[3]</entry> | ||
128 | <entry>Reserved for future extensions. Drivers must set | 134 | <entry>Reserved for future extensions. Drivers must set |
129 | the array to zero.</entry> | 135 | the array to zero.</entry> |
130 | </row> | 136 | </row> |
@@ -261,6 +267,34 @@ flag is set Macrovision has been detected.</entry> | |||
261 | </tbody> | 267 | </tbody> |
262 | </tgroup> | 268 | </tgroup> |
263 | </table> | 269 | </table> |
270 | |||
271 | <!-- Capability flags based on video timings RFC by Muralidharan | ||
272 | Karicheri, titled RFC (v1.2): V4L - Support for video timings at the | ||
273 | input/output interface to linux-media@vger.kernel.org on 19 Oct 2009. | ||
274 | --> | ||
275 | <table frame="none" pgwide="1" id="input-capabilities"> | ||
276 | <title>Input capabilities</title> | ||
277 | <tgroup cols="3"> | ||
278 | &cs-def; | ||
279 | <tbody valign="top"> | ||
280 | <row> | ||
281 | <entry><constant>V4L2_IN_CAP_PRESETS</constant></entry> | ||
282 | <entry>0x00000001</entry> | ||
283 | <entry>This input supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry> | ||
284 | </row> | ||
285 | <row> | ||
286 | <entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry> | ||
287 | <entry>0x00000002</entry> | ||
288 | <entry>This input supports setting custom video timings by using VIDIOC_S_DV_TIMINGS.</entry> | ||
289 | </row> | ||
290 | <row> | ||
291 | <entry><constant>V4L2_IN_CAP_STD</constant></entry> | ||
292 | <entry>0x00000004</entry> | ||
293 | <entry>This input supports setting the TV standard by using VIDIOC_S_STD.</entry> | ||
294 | </row> | ||
295 | </tbody> | ||
296 | </tgroup> | ||
297 | </table> | ||
264 | </refsect1> | 298 | </refsect1> |
265 | 299 | ||
266 | <refsect1> | 300 | <refsect1> |
diff --git a/Documentation/DocBook/v4l/vidioc-enumoutput.xml b/Documentation/DocBook/v4l/vidioc-enumoutput.xml index e8d16dcd50cf..a281d26a195f 100644 --- a/Documentation/DocBook/v4l/vidioc-enumoutput.xml +++ b/Documentation/DocBook/v4l/vidioc-enumoutput.xml | |||
@@ -114,7 +114,13 @@ details on video standards and how to switch see <xref | |||
114 | </row> | 114 | </row> |
115 | <row> | 115 | <row> |
116 | <entry>__u32</entry> | 116 | <entry>__u32</entry> |
117 | <entry><structfield>reserved</structfield>[4]</entry> | 117 | <entry><structfield>capabilities</structfield></entry> |
118 | <entry>This field provides capabilities for the | ||
119 | output. See <xref linkend="output-capabilities" /> for flags.</entry> | ||
120 | </row> | ||
121 | <row> | ||
122 | <entry>__u32</entry> | ||
123 | <entry><structfield>reserved</structfield>[3]</entry> | ||
118 | <entry>Reserved for future extensions. Drivers must set | 124 | <entry>Reserved for future extensions. Drivers must set |
119 | the array to zero.</entry> | 125 | the array to zero.</entry> |
120 | </row> | 126 | </row> |
@@ -147,6 +153,34 @@ CVBS, S-Video, RGB.</entry> | |||
147 | </tgroup> | 153 | </tgroup> |
148 | </table> | 154 | </table> |
149 | 155 | ||
156 | <!-- Capabilities flags based on video timings RFC by Muralidharan | ||
157 | Karicheri, titled RFC (v1.2): V4L - Support for video timings at the | ||
158 | input/output interface to linux-media@vger.kernel.org on 19 Oct 2009. | ||
159 | --> | ||
160 | <table frame="none" pgwide="1" id="output-capabilities"> | ||
161 | <title>Output capabilities</title> | ||
162 | <tgroup cols="3"> | ||
163 | &cs-def; | ||
164 | <tbody valign="top"> | ||
165 | <row> | ||
166 | <entry><constant>V4L2_OUT_CAP_PRESETS</constant></entry> | ||
167 | <entry>0x00000001</entry> | ||
168 | <entry>This output supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry> | ||
169 | </row> | ||
170 | <row> | ||
171 | <entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry> | ||
172 | <entry>0x00000002</entry> | ||
173 | <entry>This output supports setting custom video timings by using VIDIOC_S_DV_TIMINGS.</entry> | ||
174 | </row> | ||
175 | <row> | ||
176 | <entry><constant>V4L2_OUT_CAP_STD</constant></entry> | ||
177 | <entry>0x00000004</entry> | ||
178 | <entry>This output supports setting the TV standard by using VIDIOC_S_STD.</entry> | ||
179 | </row> | ||
180 | </tbody> | ||
181 | </tgroup> | ||
182 | </table> | ||
183 | |||
150 | </refsect1> | 184 | </refsect1> |
151 | <refsect1> | 185 | <refsect1> |
152 | &return-value; | 186 | &return-value; |
diff --git a/Documentation/DocBook/v4l/vidioc-g-dv-preset.xml b/Documentation/DocBook/v4l/vidioc-g-dv-preset.xml new file mode 100644 index 000000000000..3c6784e132f3 --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-g-dv-preset.xml | |||
@@ -0,0 +1,111 @@ | |||
1 | <refentry id="vidioc-g-dv-preset"> | ||
2 | <refmeta> | ||
3 | <refentrytitle>ioctl VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</refentrytitle> | ||
4 | &manvol; | ||
5 | </refmeta> | ||
6 | |||
7 | <refnamediv> | ||
8 | <refname>VIDIOC_G_DV_PRESET</refname> | ||
9 | <refname>VIDIOC_S_DV_PRESET</refname> | ||
10 | <refpurpose>Query or select the DV preset of the current input or output</refpurpose> | ||
11 | </refnamediv> | ||
12 | |||
13 | <refsynopsisdiv> | ||
14 | <funcsynopsis> | ||
15 | <funcprototype> | ||
16 | <funcdef>int <function>ioctl</function></funcdef> | ||
17 | <paramdef>int <parameter>fd</parameter></paramdef> | ||
18 | <paramdef>int <parameter>request</parameter></paramdef> | ||
19 | <paramdef>&v4l2-dv-preset; | ||
20 | *<parameter>argp</parameter></paramdef> | ||
21 | </funcprototype> | ||
22 | </funcsynopsis> | ||
23 | </refsynopsisdiv> | ||
24 | |||
25 | <refsect1> | ||
26 | <title>Arguments</title> | ||
27 | |||
28 | <variablelist> | ||
29 | <varlistentry> | ||
30 | <term><parameter>fd</parameter></term> | ||
31 | <listitem> | ||
32 | <para>&fd;</para> | ||
33 | </listitem> | ||
34 | </varlistentry> | ||
35 | <varlistentry> | ||
36 | <term><parameter>request</parameter></term> | ||
37 | <listitem> | ||
38 | <para>VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</para> | ||
39 | </listitem> | ||
40 | </varlistentry> | ||
41 | <varlistentry> | ||
42 | <term><parameter>argp</parameter></term> | ||
43 | <listitem> | ||
44 | <para></para> | ||
45 | </listitem> | ||
46 | </varlistentry> | ||
47 | </variablelist> | ||
48 | </refsect1> | ||
49 | |||
50 | <refsect1> | ||
51 | <title>Description</title> | ||
52 | <para>To query and select the current DV preset, applications | ||
53 | use the <constant>VIDIOC_G_DV_PRESET</constant> and <constant>VIDIOC_S_DV_PRESET</constant> | ||
54 | ioctls which take a pointer to a &v4l2-dv-preset; type as argument. | ||
55 | Applications must zero the reserved array in &v4l2-dv-preset;. | ||
56 | <constant>VIDIOC_G_DV_PRESET</constant> returns a dv preset in the field | ||
57 | <structfield>preset</structfield> of &v4l2-dv-preset;.</para> | ||
58 | |||
59 | <para><constant>VIDIOC_S_DV_PRESET</constant> accepts a pointer to a &v4l2-dv-preset; | ||
60 | that has the preset value to be set. Applications must zero the reserved array in &v4l2-dv-preset;. | ||
61 | If the preset is not supported, it returns an &EINVAL; </para> | ||
62 | </refsect1> | ||
63 | |||
64 | <refsect1> | ||
65 | &return-value; | ||
66 | |||
67 | <variablelist> | ||
68 | <varlistentry> | ||
69 | <term><errorcode>EINVAL</errorcode></term> | ||
70 | <listitem> | ||
71 | <para>This ioctl is not supported, or the | ||
72 | <constant>VIDIOC_S_DV_PRESET</constant>,<constant>VIDIOC_S_DV_PRESET</constant> parameter was unsuitable.</para> | ||
73 | </listitem> | ||
74 | </varlistentry> | ||
75 | <varlistentry> | ||
76 | <term><errorcode>EBUSY</errorcode></term> | ||
77 | <listitem> | ||
78 | <para>The device is busy and therefore can not change the preset.</para> | ||
79 | </listitem> | ||
80 | </varlistentry> | ||
81 | </variablelist> | ||
82 | |||
83 | <table pgwide="1" frame="none" id="v4l2-dv-preset"> | ||
84 | <title>struct <structname>v4l2_dv_preset</structname></title> | ||
85 | <tgroup cols="3"> | ||
86 | &cs-str; | ||
87 | <tbody valign="top"> | ||
88 | <row> | ||
89 | <entry>__u32</entry> | ||
90 | <entry><structfield>preset</structfield></entry> | ||
91 | <entry>Preset value to represent the digital video timings</entry> | ||
92 | </row> | ||
93 | <row> | ||
94 | <entry>__u32</entry> | ||
95 | <entry><structfield>reserved[4]</structfield></entry> | ||
96 | <entry>Reserved fields for future use</entry> | ||
97 | </row> | ||
98 | </tbody> | ||
99 | </tgroup> | ||
100 | </table> | ||
101 | |||
102 | </refsect1> | ||
103 | </refentry> | ||
104 | |||
105 | <!-- | ||
106 | Local Variables: | ||
107 | mode: sgml | ||
108 | sgml-parent-document: "v4l2.sgml" | ||
109 | indent-tabs-mode: nil | ||
110 | End: | ||
111 | --> | ||
diff --git a/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml b/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml new file mode 100644 index 000000000000..ecc19576bb8f --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml | |||
@@ -0,0 +1,224 @@ | |||
1 | <refentry id="vidioc-g-dv-timings"> | ||
2 | <refmeta> | ||
3 | <refentrytitle>ioctl VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</refentrytitle> | ||
4 | &manvol; | ||
5 | </refmeta> | ||
6 | |||
7 | <refnamediv> | ||
8 | <refname>VIDIOC_G_DV_TIMINGS</refname> | ||
9 | <refname>VIDIOC_S_DV_TIMINGS</refname> | ||
10 | <refpurpose>Get or set custom DV timings for input or output</refpurpose> | ||
11 | </refnamediv> | ||
12 | |||
13 | <refsynopsisdiv> | ||
14 | <funcsynopsis> | ||
15 | <funcprototype> | ||
16 | <funcdef>int <function>ioctl</function></funcdef> | ||
17 | <paramdef>int <parameter>fd</parameter></paramdef> | ||
18 | <paramdef>int <parameter>request</parameter></paramdef> | ||
19 | <paramdef>&v4l2-dv-timings; | ||
20 | *<parameter>argp</parameter></paramdef> | ||
21 | </funcprototype> | ||
22 | </funcsynopsis> | ||
23 | </refsynopsisdiv> | ||
24 | |||
25 | <refsect1> | ||
26 | <title>Arguments</title> | ||
27 | |||
28 | <variablelist> | ||
29 | <varlistentry> | ||
30 | <term><parameter>fd</parameter></term> | ||
31 | <listitem> | ||
32 | <para>&fd;</para> | ||
33 | </listitem> | ||
34 | </varlistentry> | ||
35 | <varlistentry> | ||
36 | <term><parameter>request</parameter></term> | ||
37 | <listitem> | ||
38 | <para>VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</para> | ||
39 | </listitem> | ||
40 | </varlistentry> | ||
41 | <varlistentry> | ||
42 | <term><parameter>argp</parameter></term> | ||
43 | <listitem> | ||
44 | <para></para> | ||
45 | </listitem> | ||
46 | </varlistentry> | ||
47 | </variablelist> | ||
48 | </refsect1> | ||
49 | |||
50 | <refsect1> | ||
51 | <title>Description</title> | ||
52 | <para>To set custom DV timings for the input or output, applications use the | ||
53 | <constant>VIDIOC_S_DV_TIMINGS</constant> ioctl and to get the current custom timings, | ||
54 | applications use the <constant>VIDIOC_G_DV_TIMINGS</constant> ioctl. The detailed timing | ||
55 | information is filled in using the structure &v4l2-dv-timings;. These ioctls take | ||
56 | a pointer to the &v4l2-dv-timings; structure as argument. If the ioctl is not supported | ||
57 | or the timing values are not correct, the driver returns &EINVAL;.</para> | ||
58 | </refsect1> | ||
59 | |||
60 | <refsect1> | ||
61 | &return-value; | ||
62 | |||
63 | <variablelist> | ||
64 | <varlistentry> | ||
65 | <term><errorcode>EINVAL</errorcode></term> | ||
66 | <listitem> | ||
67 | <para>This ioctl is not supported, or the | ||
68 | <constant>VIDIOC_S_DV_TIMINGS</constant> parameter was unsuitable.</para> | ||
69 | </listitem> | ||
70 | </varlistentry> | ||
71 | <varlistentry> | ||
72 | <term><errorcode>EBUSY</errorcode></term> | ||
73 | <listitem> | ||
74 | <para>The device is busy and therefore can not change the timings.</para> | ||
75 | </listitem> | ||
76 | </varlistentry> | ||
77 | </variablelist> | ||
78 | |||
79 | <table pgwide="1" frame="none" id="v4l2-bt-timings"> | ||
80 | <title>struct <structname>v4l2_bt_timings</structname></title> | ||
81 | <tgroup cols="3"> | ||
82 | &cs-str; | ||
83 | <tbody valign="top"> | ||
84 | <row> | ||
85 | <entry>__u32</entry> | ||
86 | <entry><structfield>width</structfield></entry> | ||
87 | <entry>Width of the active video in pixels</entry> | ||
88 | </row> | ||
89 | <row> | ||
90 | <entry>__u32</entry> | ||
91 | <entry><structfield>height</structfield></entry> | ||
92 | <entry>Height of the active video in lines</entry> | ||
93 | </row> | ||
94 | <row> | ||
95 | <entry>__u32</entry> | ||
96 | <entry><structfield>interlaced</structfield></entry> | ||
97 | <entry>Progressive (0) or interlaced (1)</entry> | ||
98 | </row> | ||
99 | <row> | ||
100 | <entry>__u32</entry> | ||
101 | <entry><structfield>polarities</structfield></entry> | ||
102 | <entry>This is a bit mask that defines polarities of sync signals. | ||
103 | 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 | ||
104 | (1) it is positive polarity and if is cleared (0), it is negative polarity.</entry> | ||
105 | </row> | ||
106 | <row> | ||
107 | <entry>__u64</entry> | ||
108 | <entry><structfield>pixelclock</structfield></entry> | ||
109 | <entry>Pixel clock in Hz. Ex. 74.25MHz->74250000</entry> | ||
110 | </row> | ||
111 | <row> | ||
112 | <entry>__u32</entry> | ||
113 | <entry><structfield>hfrontporch</structfield></entry> | ||
114 | <entry>Horizontal front porch in pixels</entry> | ||
115 | </row> | ||
116 | <row> | ||
117 | <entry>__u32</entry> | ||
118 | <entry><structfield>hsync</structfield></entry> | ||
119 | <entry>Horizontal sync length in pixels</entry> | ||
120 | </row> | ||
121 | <row> | ||
122 | <entry>__u32</entry> | ||
123 | <entry><structfield>hbackporch</structfield></entry> | ||
124 | <entry>Horizontal back porch in pixels</entry> | ||
125 | </row> | ||
126 | <row> | ||
127 | <entry>__u32</entry> | ||
128 | <entry><structfield>vfrontporch</structfield></entry> | ||
129 | <entry>Vertical front porch in lines</entry> | ||
130 | </row> | ||
131 | <row> | ||
132 | <entry>__u32</entry> | ||
133 | <entry><structfield>vsync</structfield></entry> | ||
134 | <entry>Vertical sync length in lines</entry> | ||
135 | </row> | ||
136 | <row> | ||
137 | <entry>__u32</entry> | ||
138 | <entry><structfield>vbackporch</structfield></entry> | ||
139 | <entry>Vertical back porch in lines</entry> | ||
140 | </row> | ||
141 | <row> | ||
142 | <entry>__u32</entry> | ||
143 | <entry><structfield>il_vfrontporch</structfield></entry> | ||
144 | <entry>Vertical front porch in lines for bottom field of interlaced field formats</entry> | ||
145 | </row> | ||
146 | <row> | ||
147 | <entry>__u32</entry> | ||
148 | <entry><structfield>il_vsync</structfield></entry> | ||
149 | <entry>Vertical sync length in lines for bottom field of interlaced field formats</entry> | ||
150 | </row> | ||
151 | <row> | ||
152 | <entry>__u32</entry> | ||
153 | <entry><structfield>il_vbackporch</structfield></entry> | ||
154 | <entry>Vertical back porch in lines for bottom field of interlaced field formats</entry> | ||
155 | </row> | ||
156 | </tbody> | ||
157 | </tgroup> | ||
158 | </table> | ||
159 | |||
160 | <table pgwide="1" frame="none" id="v4l2-dv-timings"> | ||
161 | <title>struct <structname>v4l2_dv_timings</structname></title> | ||
162 | <tgroup cols="4"> | ||
163 | &cs-str; | ||
164 | <tbody valign="top"> | ||
165 | <row> | ||
166 | <entry>__u32</entry> | ||
167 | <entry><structfield>type</structfield></entry> | ||
168 | <entry></entry> | ||
169 | <entry>Type of DV timings as listed in <xref linkend="dv-timing-types"/>.</entry> | ||
170 | </row> | ||
171 | <row> | ||
172 | <entry>union</entry> | ||
173 | <entry><structfield></structfield></entry> | ||
174 | <entry></entry> | ||
175 | </row> | ||
176 | <row> | ||
177 | <entry></entry> | ||
178 | <entry>&v4l2-bt-timings;</entry> | ||
179 | <entry><structfield>bt</structfield></entry> | ||
180 | <entry>Timings defined by BT.656/1120 specifications</entry> | ||
181 | </row> | ||
182 | <row> | ||
183 | <entry></entry> | ||
184 | <entry>__u32</entry> | ||
185 | <entry><structfield>reserved</structfield>[32]</entry> | ||
186 | <entry></entry> | ||
187 | </row> | ||
188 | </tbody> | ||
189 | </tgroup> | ||
190 | </table> | ||
191 | |||
192 | <table pgwide="1" frame="none" id="dv-timing-types"> | ||
193 | <title>DV Timing types</title> | ||
194 | <tgroup cols="3"> | ||
195 | &cs-str; | ||
196 | <tbody valign="top"> | ||
197 | <row> | ||
198 | <entry>Timing type</entry> | ||
199 | <entry>value</entry> | ||
200 | <entry>Description</entry> | ||
201 | </row> | ||
202 | <row> | ||
203 | <entry></entry> | ||
204 | <entry></entry> | ||
205 | <entry></entry> | ||
206 | </row> | ||
207 | <row> | ||
208 | <entry>V4L2_DV_BT_656_1120</entry> | ||
209 | <entry>0</entry> | ||
210 | <entry>BT.656/1120 timings</entry> | ||
211 | </row> | ||
212 | </tbody> | ||
213 | </tgroup> | ||
214 | </table> | ||
215 | </refsect1> | ||
216 | </refentry> | ||
217 | |||
218 | <!-- | ||
219 | Local Variables: | ||
220 | mode: sgml | ||
221 | sgml-parent-document: "v4l2.sgml" | ||
222 | indent-tabs-mode: nil | ||
223 | End: | ||
224 | --> | ||
diff --git a/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml b/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml new file mode 100644 index 000000000000..87e4f0f6151c --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml | |||
@@ -0,0 +1,85 @@ | |||
1 | <refentry id="vidioc-query-dv-preset"> | ||
2 | <refmeta> | ||
3 | <refentrytitle>ioctl VIDIOC_QUERY_DV_PRESET</refentrytitle> | ||
4 | &manvol; | ||
5 | </refmeta> | ||
6 | |||
7 | <refnamediv> | ||
8 | <refname>VIDIOC_QUERY_DV_PRESET</refname> | ||
9 | <refpurpose>Sense the DV preset received by the current | ||
10 | input</refpurpose> | ||
11 | </refnamediv> | ||
12 | |||
13 | <refsynopsisdiv> | ||
14 | <funcsynopsis> | ||
15 | <funcprototype> | ||
16 | <funcdef>int <function>ioctl</function></funcdef> | ||
17 | <paramdef>int <parameter>fd</parameter></paramdef> | ||
18 | <paramdef>int <parameter>request</parameter></paramdef> | ||
19 | <paramdef>&v4l2-dv-preset; *<parameter>argp</parameter></paramdef> | ||
20 | </funcprototype> | ||
21 | </funcsynopsis> | ||
22 | </refsynopsisdiv> | ||
23 | |||
24 | <refsect1> | ||
25 | <title>Arguments</title> | ||
26 | |||
27 | <variablelist> | ||
28 | <varlistentry> | ||
29 | <term><parameter>fd</parameter></term> | ||
30 | <listitem> | ||
31 | <para>&fd;</para> | ||
32 | </listitem> | ||
33 | </varlistentry> | ||
34 | <varlistentry> | ||
35 | <term><parameter>request</parameter></term> | ||
36 | <listitem> | ||
37 | <para>VIDIOC_QUERY_DV_PRESET</para> | ||
38 | </listitem> | ||
39 | </varlistentry> | ||
40 | <varlistentry> | ||
41 | <term><parameter>argp</parameter></term> | ||
42 | <listitem> | ||
43 | <para></para> | ||
44 | </listitem> | ||
45 | </varlistentry> | ||
46 | </variablelist> | ||
47 | </refsect1> | ||
48 | |||
49 | <refsect1> | ||
50 | <title>Description</title> | ||
51 | |||
52 | <para>The hardware may be able to detect the current DV preset | ||
53 | automatically, similar to sensing the video standard. To do so, applications | ||
54 | call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a | ||
55 | &v4l2-dv-preset; type. Once the hardware detects a preset, that preset is | ||
56 | returned in the preset field of &v4l2-dv-preset;. When detection is not | ||
57 | possible or fails, the value V4L2_DV_INVALID is returned.</para> | ||
58 | </refsect1> | ||
59 | |||
60 | <refsect1> | ||
61 | &return-value; | ||
62 | <variablelist> | ||
63 | <varlistentry> | ||
64 | <term><errorcode>EINVAL</errorcode></term> | ||
65 | <listitem> | ||
66 | <para>This ioctl is not supported.</para> | ||
67 | </listitem> | ||
68 | </varlistentry> | ||
69 | <varlistentry> | ||
70 | <term><errorcode>EBUSY</errorcode></term> | ||
71 | <listitem> | ||
72 | <para>The device is busy and therefore can not sense the preset</para> | ||
73 | </listitem> | ||
74 | </varlistentry> | ||
75 | </variablelist> | ||
76 | </refsect1> | ||
77 | </refentry> | ||
78 | |||
79 | <!-- | ||
80 | Local Variables: | ||
81 | mode: sgml | ||
82 | sgml-parent-document: "v4l2.sgml" | ||
83 | indent-tabs-mode: nil | ||
84 | End: | ||
85 | --> | ||