diff options
Diffstat (limited to 'Documentation')
22 files changed, 1448 insertions, 138 deletions
diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl index c725cb852c5..5d4d40f429a 100644 --- a/Documentation/DocBook/media-entities.tmpl +++ b/Documentation/DocBook/media-entities.tmpl @@ -17,6 +17,7 @@ <!ENTITY VIDIOC-DBG-G-REGISTER "<link linkend='vidioc-dbg-g-register'><constant>VIDIOC_DBG_G_REGISTER</constant></link>"> <!ENTITY VIDIOC-DBG-S-REGISTER "<link linkend='vidioc-dbg-g-register'><constant>VIDIOC_DBG_S_REGISTER</constant></link>"> <!ENTITY VIDIOC-DQBUF "<link linkend='vidioc-qbuf'><constant>VIDIOC_DQBUF</constant></link>"> +<!ENTITY VIDIOC-DQEVENT "<link linkend='vidioc-dqevent'><constant>VIDIOC_DQEVENT</constant></link>"> <!ENTITY VIDIOC-ENCODER-CMD "<link linkend='vidioc-encoder-cmd'><constant>VIDIOC_ENCODER_CMD</constant></link>"> <!ENTITY VIDIOC-ENUMAUDIO "<link linkend='vidioc-enumaudio'><constant>VIDIOC_ENUMAUDIO</constant></link>"> <!ENTITY VIDIOC-ENUMAUDOUT "<link linkend='vidioc-enumaudioout'><constant>VIDIOC_ENUMAUDOUT</constant></link>"> @@ -60,6 +61,7 @@ <!ENTITY VIDIOC-REQBUFS "<link linkend='vidioc-reqbufs'><constant>VIDIOC_REQBUFS</constant></link>"> <!ENTITY VIDIOC-STREAMOFF "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMOFF</constant></link>"> <!ENTITY VIDIOC-STREAMON "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMON</constant></link>"> +<!ENTITY VIDIOC-SUBSCRIBE-EVENT "<link linkend='vidioc-subscribe-event'><constant>VIDIOC_SUBSCRIBE_EVENT</constant></link>"> <!ENTITY VIDIOC-S-AUDIO "<link linkend='vidioc-g-audio'><constant>VIDIOC_S_AUDIO</constant></link>"> <!ENTITY VIDIOC-S-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_S_AUDOUT</constant></link>"> <!ENTITY VIDIOC-S-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_S_CROP</constant></link>"> @@ -83,6 +85,7 @@ <!ENTITY VIDIOC-TRY-ENCODER-CMD "<link linkend='vidioc-encoder-cmd'><constant>VIDIOC_TRY_ENCODER_CMD</constant></link>"> <!ENTITY VIDIOC-TRY-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_TRY_EXT_CTRLS</constant></link>"> <!ENTITY VIDIOC-TRY-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_TRY_FMT</constant></link>"> +<!ENTITY VIDIOC-UNSUBSCRIBE-EVENT "<link linkend='vidioc-subscribe-event'><constant>VIDIOC_UNSUBSCRIBE_EVENT</constant></link>"> <!-- Types --> <!ENTITY v4l2-std-id "<link linkend='v4l2-std-id'>v4l2_std_id</link>"> @@ -141,6 +144,9 @@ <!ENTITY v4l2-enc-idx "struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link>"> <!ENTITY v4l2-enc-idx-entry "struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link>"> <!ENTITY v4l2-encoder-cmd "struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link>"> +<!ENTITY v4l2-event "struct <link linkend='v4l2-event'>v4l2_event</link>"> +<!ENTITY v4l2-event-subscription "struct <link linkend='v4l2-event-subscription'>v4l2_event_subscription</link>"> +<!ENTITY v4l2-event-vsync "struct <link linkend='v4l2-event-vsync'>v4l2_event_vsync</link>"> <!ENTITY v4l2-ext-control "struct <link linkend='v4l2-ext-control'>v4l2_ext_control</link>"> <!ENTITY v4l2-ext-controls "struct <link linkend='v4l2-ext-controls'>v4l2_ext_controls</link>"> <!ENTITY v4l2-fmtdesc "struct <link linkend='v4l2-fmtdesc'>v4l2_fmtdesc</link>"> @@ -200,6 +206,7 @@ <!ENTITY sub-controls SYSTEM "v4l/controls.xml"> <!ENTITY sub-dev-capture SYSTEM "v4l/dev-capture.xml"> <!ENTITY sub-dev-codec SYSTEM "v4l/dev-codec.xml"> +<!ENTITY sub-dev-event SYSTEM "v4l/dev-event.xml"> <!ENTITY sub-dev-effect SYSTEM "v4l/dev-effect.xml"> <!ENTITY sub-dev-osd SYSTEM "v4l/dev-osd.xml"> <!ENTITY sub-dev-output SYSTEM "v4l/dev-output.xml"> @@ -292,6 +299,8 @@ <!ENTITY sub-v4l2grab-c SYSTEM "v4l/v4l2grab.c.xml"> <!ENTITY sub-videodev2-h SYSTEM "v4l/videodev2.h.xml"> <!ENTITY sub-v4l2 SYSTEM "v4l/v4l2.xml"> +<!ENTITY sub-dqevent SYSTEM "v4l/vidioc-dqevent.xml"> +<!ENTITY sub-subscribe-event SYSTEM "v4l/vidioc-subscribe-event.xml"> <!ENTITY sub-intro SYSTEM "dvb/intro.xml"> <!ENTITY sub-frontend SYSTEM "dvb/frontend.xml"> <!ENTITY sub-dvbproperty SYSTEM "dvb/dvbproperty.xml"> @@ -381,3 +390,5 @@ <!ENTITY reqbufs SYSTEM "v4l/vidioc-reqbufs.xml"> <!ENTITY s-hw-freq-seek SYSTEM "v4l/vidioc-s-hw-freq-seek.xml"> <!ENTITY streamon SYSTEM "v4l/vidioc-streamon.xml"> +<!ENTITY dqevent SYSTEM "v4l/vidioc-dqevent.xml"> +<!ENTITY subscribe_event SYSTEM "v4l/vidioc-subscribe-event.xml"> diff --git a/Documentation/DocBook/v4l/compat.xml b/Documentation/DocBook/v4l/compat.xml index b9dbdf9e6d2..b42b935913c 100644 --- a/Documentation/DocBook/v4l/compat.xml +++ b/Documentation/DocBook/v4l/compat.xml @@ -2332,15 +2332,26 @@ more information.</para> </listitem> </orderedlist> </section> - </section> + <section> + <title>V4L2 in Linux 2.6.34</title> + <orderedlist> + <listitem> + <para>Added +<constant>V4L2_CID_IRIS_ABSOLUTE</constant> and +<constant>V4L2_CID_IRIS_RELATIVE</constant> controls to the + <link linkend="camera-controls">Camera controls class</link>. + </para> + </listitem> + </orderedlist> + </section> - <section id="other"> - <title>Relation of V4L2 to other Linux multimedia APIs</title> + <section id="other"> + <title>Relation of V4L2 to other Linux multimedia APIs</title> - <section id="xvideo"> - <title>X Video Extension</title> + <section id="xvideo"> + <title>X Video Extension</title> - <para>The X Video Extension (abbreviated XVideo or just Xv) is + <para>The X Video Extension (abbreviated XVideo or just Xv) is an extension of the X Window system, implemented for example by the XFree86 project. Its scope is similar to V4L2, an API to video capture and output devices for X clients. Xv allows applications to display @@ -2351,7 +2362,7 @@ capture or output still images in XPixmaps<footnote> extension available across many operating systems and architectures.</para> - <para>Because the driver is embedded into the X server Xv has a + <para>Because the driver is embedded into the X server Xv has a number of advantages over the V4L2 <link linkend="overlay">video overlay interface</link>. The driver can easily determine the overlay target, &ie; visible graphics memory or off-screen buffers for a @@ -2360,16 +2371,16 @@ overlay, scaling or color-keying, or the clipping functions of the video capture hardware, always in sync with drawing operations or windows moving or changing their stacking order.</para> - <para>To combine the advantages of Xv and V4L a special Xv + <para>To combine the advantages of Xv and V4L a special Xv driver exists in XFree86 and XOrg, just programming any overlay capable Video4Linux device it finds. To enable it <filename>/etc/X11/XF86Config</filename> must contain these lines:</para> - <para><screen> + <para><screen> Section "Module" Load "v4l" EndSection</screen></para> - <para>As of XFree86 4.2 this driver still supports only V4L + <para>As of XFree86 4.2 this driver still supports only V4L ioctls, however it should work just fine with all V4L2 devices through the V4L2 backward-compatibility layer. Since V4L2 permits multiple opens it is possible (if supported by the V4L2 driver) to capture @@ -2377,83 +2388,84 @@ video while an X client requested video overlay. Restrictions of simultaneous capturing and overlay are discussed in <xref linkend="overlay" /> apply.</para> - <para>Only marginally related to V4L2, XFree86 extended Xv to + <para>Only marginally related to V4L2, XFree86 extended Xv to support hardware YUV to RGB conversion and scaling for faster video playback, and added an interface to MPEG-2 decoding hardware. This API is useful to display images captured with V4L2 devices.</para> - </section> + </section> - <section> - <title>Digital Video</title> + <section> + <title>Digital Video</title> - <para>V4L2 does not support digital terrestrial, cable or + <para>V4L2 does not support digital terrestrial, cable or satellite broadcast. A separate project aiming at digital receivers exists. You can find its homepage at <ulink url="http://linuxtv.org">http://linuxtv.org</ulink>. The Linux DVB API has no connection to the V4L2 API except that drivers for hybrid hardware may support both.</para> - </section> + </section> - <section> - <title>Audio Interfaces</title> + <section> + <title>Audio Interfaces</title> - <para>[to do - OSS/ALSA]</para> + <para>[to do - OSS/ALSA]</para> + </section> </section> - </section> - <section id="experimental"> - <title>Experimental API Elements</title> + <section id="experimental"> + <title>Experimental API Elements</title> - <para>The following V4L2 API elements are currently experimental + <para>The following V4L2 API elements are currently experimental and may change in the future.</para> - <itemizedlist> - <listitem> - <para>Video Output Overlay (OSD) Interface, <xref + <itemizedlist> + <listitem> + <para>Video Output Overlay (OSD) Interface, <xref linkend="osd" />.</para> - </listitem> + </listitem> <listitem> - <para><constant>V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY</constant>, + <para><constant>V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY</constant>, &v4l2-buf-type;, <xref linkend="v4l2-buf-type" />.</para> - </listitem> - <listitem> - <para><constant>V4L2_CAP_VIDEO_OUTPUT_OVERLAY</constant>, + </listitem> + <listitem> + <para><constant>V4L2_CAP_VIDEO_OUTPUT_OVERLAY</constant>, &VIDIOC-QUERYCAP; ioctl, <xref linkend="device-capabilities" />.</para> - </listitem> - <listitem> - <para>&VIDIOC-ENUM-FRAMESIZES; and + </listitem> + <listitem> + <para>&VIDIOC-ENUM-FRAMESIZES; and &VIDIOC-ENUM-FRAMEINTERVALS; ioctls.</para> - </listitem> - <listitem> - <para>&VIDIOC-G-ENC-INDEX; ioctl.</para> - </listitem> - <listitem> - <para>&VIDIOC-ENCODER-CMD; and &VIDIOC-TRY-ENCODER-CMD; + </listitem> + <listitem> + <para>&VIDIOC-G-ENC-INDEX; ioctl.</para> + </listitem> + <listitem> + <para>&VIDIOC-ENCODER-CMD; and &VIDIOC-TRY-ENCODER-CMD; ioctls.</para> - </listitem> - <listitem> - <para>&VIDIOC-DBG-G-REGISTER; and &VIDIOC-DBG-S-REGISTER; + </listitem> + <listitem> + <para>&VIDIOC-DBG-G-REGISTER; and &VIDIOC-DBG-S-REGISTER; ioctls.</para> - </listitem> - <listitem> - <para>&VIDIOC-DBG-G-CHIP-IDENT; ioctl.</para> - </listitem> - </itemizedlist> - </section> + </listitem> + <listitem> + <para>&VIDIOC-DBG-G-CHIP-IDENT; ioctl.</para> + </listitem> + </itemizedlist> + </section> - <section id="obsolete"> - <title>Obsolete API Elements</title> + <section id="obsolete"> + <title>Obsolete API Elements</title> - <para>The following V4L2 API elements were superseded by new + <para>The following V4L2 API elements were superseded by new interfaces and should not be implemented in new drivers.</para> - <itemizedlist> - <listitem> - <para><constant>VIDIOC_G_MPEGCOMP</constant> and + <itemizedlist> + <listitem> + <para><constant>VIDIOC_G_MPEGCOMP</constant> and <constant>VIDIOC_S_MPEGCOMP</constant> ioctls. Use Extended Controls, <xref linkend="extended-controls" />.</para> - </listitem> - </itemizedlist> + </listitem> + </itemizedlist> + </section> </section> <!-- diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml index f4645061041..8408caaee27 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/v4l/controls.xml @@ -267,6 +267,12 @@ minimum value disables backlight compensation.</entry> <entry>Chroma automatic gain control.</entry> </row> <row> + <entry><constant>V4L2_CID_CHROMA_GAIN</constant></entry> + <entry>integer</entry> + <entry>Adjusts the Chroma gain control (for use when chroma AGC + is disabled).</entry> + </row> + <row> <entry><constant>V4L2_CID_COLOR_KILLER</constant></entry> <entry>boolean</entry> <entry>Enable the color killer (&ie; force a black & white image in case of a weak video signal).</entry> @@ -277,8 +283,15 @@ minimum value disables backlight compensation.</entry> <entry>Selects a color effect. Possible values for <constant>enum v4l2_colorfx</constant> are: <constant>V4L2_COLORFX_NONE</constant> (0), -<constant>V4L2_COLORFX_BW</constant> (1) and -<constant>V4L2_COLORFX_SEPIA</constant> (2).</entry> +<constant>V4L2_COLORFX_BW</constant> (1), +<constant>V4L2_COLORFX_SEPIA</constant> (2), +<constant>V4L2_COLORFX_NEGATIVE</constant> (3), +<constant>V4L2_COLORFX_EMBOSS</constant> (4), +<constant>V4L2_COLORFX_SKETCH</constant> (5), +<constant>V4L2_COLORFX_SKY_BLUE</constant> (6), +<constant>V4L2_COLORFX_GRASS_GREEN</constant> (7), +<constant>V4L2_COLORFX_SKIN_WHITEN</constant> (8) and +<constant>V4L2_COLORFX_VIVID</constant> (9).</entry> </row> <row> <entry><constant>V4L2_CID_ROTATE</constant></entry> @@ -1825,6 +1838,25 @@ wide-angle direction. The zoom speed unit is driver-specific.</entry> <row><entry></entry></row> <row> + <entry spanname="id"><constant>V4L2_CID_IRIS_ABSOLUTE</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">This control sets the +camera's aperture to the specified value. The unit is undefined. +Larger values open the iris wider, smaller values close it.</entry> + </row> + <row><entry></entry></row> + + <row> + <entry spanname="id"><constant>V4L2_CID_IRIS_RELATIVE</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">This control modifies the +camera's aperture by the specified amount. The unit is undefined. +Positive values open the iris one step further, negative values close +it one step further. This is a write-only control.</entry> + </row> + <row><entry></entry></row> + + <row> <entry spanname="id"><constant>V4L2_CID_PRIVACY</constant> </entry> <entry>boolean</entry> </row><row><entry spanname="descr">Prevent video from being acquired diff --git a/Documentation/DocBook/v4l/dev-event.xml b/Documentation/DocBook/v4l/dev-event.xml new file mode 100644 index 00000000000..be5a98fb4fa --- /dev/null +++ b/Documentation/DocBook/v4l/dev-event.xml @@ -0,0 +1,31 @@ + <title>Event Interface</title> + + <para>The V4L2 event interface provides means for user to get + immediately notified on certain conditions taking place on a device. + This might include start of frame or loss of signal events, for + example. + </para> + + <para>To receive events, the events the user is interested in first must + be subscribed using the &VIDIOC-SUBSCRIBE-EVENT; ioctl. Once an event is + subscribed, the events of subscribed types are dequeueable using the + &VIDIOC-DQEVENT; ioctl. Events may be unsubscribed using + VIDIOC_UNSUBSCRIBE_EVENT ioctl. The special event type V4L2_EVENT_ALL may + be used to unsubscribe all the events the driver supports.</para> + + <para>The event subscriptions and event queues are specific to file + handles. Subscribing an event on one file handle does not affect + other file handles. + </para> + + <para>The information on dequeueable events is obtained by using select or + poll system calls on video devices. The V4L2 events use POLLPRI events on + poll system call and exceptions on select system call. </para> + + <!-- +Local Variables: +mode: sgml +sgml-parent-document: "v4l2.sgml" +indent-tabs-mode: nil +End: + --> diff --git a/Documentation/DocBook/v4l/io.xml b/Documentation/DocBook/v4l/io.xml index e870330cbf7..d424886beda 100644 --- a/Documentation/DocBook/v4l/io.xml +++ b/Documentation/DocBook/v4l/io.xml @@ -702,6 +702,16 @@ They can be both cleared however, then the buffer is in "dequeued" state, in the application domain to say so.</entry> </row> <row> + <entry><constant>V4L2_BUF_FLAG_ERROR</constant></entry> + <entry>0x0040</entry> + <entry>When this flag is set, the buffer has been dequeued + successfully, although the data might have been corrupted. + This is recoverable, streaming may continue as normal and + the buffer may be reused normally. + Drivers set this flag when the <constant>VIDIOC_DQBUF</constant> + ioctl is called.</entry> + </row> + <row> <entry><constant>V4L2_BUF_FLAG_KEYFRAME</constant></entry> <entry>0x0008</entry> <entry>Drivers set or clear this flag when calling the @@ -918,8 +928,8 @@ order</emphasis>.</para> <para>When the driver provides or accepts images field by field rather than interleaved, it is also important applications understand -how the fields combine to frames. We distinguish between top and -bottom fields, the <emphasis>spatial order</emphasis>: The first line +how the fields combine to frames. We distinguish between top (aka odd) and +bottom (aka even) fields, the <emphasis>spatial order</emphasis>: The first line of the top field is the first line of an interlaced frame, the first line of the bottom field is the second line of that frame.</para> @@ -972,12 +982,12 @@ between <constant>V4L2_FIELD_TOP</constant> and <row> <entry><constant>V4L2_FIELD_TOP</constant></entry> <entry>2</entry> - <entry>Images consist of the top field only.</entry> + <entry>Images consist of the top (aka odd) field only.</entry> </row> <row> <entry><constant>V4L2_FIELD_BOTTOM</constant></entry> <entry>3</entry> - <entry>Images consist of the bottom field only. + <entry>Images consist of the bottom (aka even) field only. Applications may wish to prevent a device from capturing interlaced images because they will have "comb" or "feathering" artefacts around moving objects.</entry> diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml index 885968d6a2f..c4ad0a8e42d 100644 --- a/Documentation/DocBook/v4l/pixfmt.xml +++ b/Documentation/DocBook/v4l/pixfmt.xml @@ -792,6 +792,18 @@ http://www.thedirks.org/winnov/</ulink></para></entry> <entry>'YYUV'</entry> <entry>unknown</entry> </row> + <row id="V4L2-PIX-FMT-Y4"> + <entry><constant>V4L2_PIX_FMT_Y4</constant></entry> + <entry>'Y04 '</entry> + <entry>Old 4-bit greyscale format. Only the least significant 4 bits of each byte are used, +the other bits are set to 0.</entry> + </row> + <row id="V4L2-PIX-FMT-Y6"> + <entry><constant>V4L2_PIX_FMT_Y6</constant></entry> + <entry>'Y06 '</entry> + <entry>Old 6-bit greyscale format. Only the least significant 6 bits of each byte are used, +the other bits are set to 0.</entry> + </row> </tbody> </tgroup> </table> diff --git a/Documentation/DocBook/v4l/v4l2.xml b/Documentation/DocBook/v4l/v4l2.xml index 060105af49e..9737243377a 100644 --- a/Documentation/DocBook/v4l/v4l2.xml +++ b/Documentation/DocBook/v4l/v4l2.xml @@ -401,6 +401,7 @@ and discussions on the V4L mailing list.</revremark> <section id="ttx"> &sub-dev-teletext; </section> <section id="radio"> &sub-dev-radio; </section> <section id="rds"> &sub-dev-rds; </section> + <section id="event"> &sub-dev-event; </section> </chapter> <chapter id="driver"> @@ -426,6 +427,7 @@ and discussions on the V4L mailing list.</revremark> &sub-cropcap; &sub-dbg-g-chip-ident; &sub-dbg-g-register; + &sub-dqevent; &sub-encoder-cmd; &sub-enumaudio; &sub-enumaudioout; @@ -467,6 +469,7 @@ and discussions on the V4L mailing list.</revremark> &sub-reqbufs; &sub-s-hw-freq-seek; &sub-streamon; + &sub-subscribe-event; <!-- End of ioctls. --> &sub-mmap; &sub-munmap; diff --git a/Documentation/DocBook/v4l/videodev2.h.xml b/Documentation/DocBook/v4l/videodev2.h.xml index 06832594065..865b06d9e67 100644 --- a/Documentation/DocBook/v4l/videodev2.h.xml +++ b/Documentation/DocBook/v4l/videodev2.h.xml @@ -1018,6 +1018,13 @@ enum <link linkend="v4l2-colorfx">v4l2_colorfx</link> { V4L2_COLORFX_NONE = 0, V4L2_COLORFX_BW = 1, V4L2_COLORFX_SEPIA = 2, + V4L2_COLORFX_NEGATIVE = 3, + V4L2_COLORFX_EMBOSS = 4, + V4L2_COLORFX_SKETCH = 5, + V4L2_COLORFX_SKY_BLUE = 6, + V4L2_COLORFX_GRASS_GREEN = 7, + V4L2_COLORFX_SKIN_WHITEN = 8, + V4L2_COLORFX_VIVID = 9. }; #define V4L2_CID_AUTOBRIGHTNESS (V4L2_CID_BASE+32) #define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33) @@ -1271,6 +1278,9 @@ enum <link linkend="v4l2-exposure-auto-type">v4l2_exposure_auto_type</link> { #define V4L2_CID_PRIVACY (V4L2_CID_CAMERA_CLASS_BASE+16) +#define V4L2_CID_IRIS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+17) +#define V4L2_CID_IRIS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+18) + /* FM Modulator class control IDs */ #define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900) #define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1) diff --git a/Documentation/DocBook/v4l/vidioc-dqevent.xml b/Documentation/DocBook/v4l/vidioc-dqevent.xml new file mode 100644 index 00000000000..4e0a7cc3081 --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-dqevent.xml @@ -0,0 +1,131 @@ +<refentry id="vidioc-dqevent"> + <refmeta> + <refentrytitle>ioctl VIDIOC_DQEVENT</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>VIDIOC_DQEVENT</refname> + <refpurpose>Dequeue event</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_event +*<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_DQEVENT</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para></para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Dequeue an event from a video device. No input is required + for this ioctl. All the fields of the &v4l2-event; structure are + filled by the driver. The file handle will also receive exceptions + which the application may get by e.g. using the select system + call.</para> + + <table frame="none" pgwide="1" id="v4l2-event"> + <title>struct <structname>v4l2_event</structname></title> + <tgroup cols="4"> + &cs-str; + <tbody valign="top"> + <row> + <entry>__u32</entry> + <entry><structfield>type</structfield></entry> + <entry></entry> + <entry>Type of the event.</entry> + </row> + <row> + <entry>union</entry> + <entry><structfield>u</structfield></entry> + <entry></entry> + <entry></entry> + </row> + <row> + <entry></entry> + <entry>&v4l2-event-vsync;</entry> + <entry><structfield>vsync</structfield></entry> + <entry>Event data for event V4L2_EVENT_VSYNC. + </entry> + </row> + <row> + <entry></entry> + <entry>__u8</entry> + <entry><structfield>data</structfield>[64]</entry> + <entry>Event data. Defined by the event type. The union + should be used to define easily accessible type for + events.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>pending</structfield></entry> + <entry></entry> + <entry>Number of pending events excluding this one.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>sequence</structfield></entry> + <entry></entry> + <entry>Event sequence number. The sequence number is + incremented for every subscribed event that takes place. + If sequence numbers are not contiguous it means that + events have been lost. + </entry> + </row> + <row> + <entry>struct timespec</entry> + <entry><structfield>timestamp</structfield></entry> + <entry></entry> + <entry>Event timestamp.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>reserved</structfield>[9]</entry> + <entry></entry> + <entry>Reserved for future extensions. Drivers must set + the array to zero.</entry> + </row> + </tbody> + </tgroup> + </table> + + </refsect1> +</refentry> +<!-- +Local Variables: +mode: sgml +sgml-parent-document: "v4l2.sgml" +indent-tabs-mode: nil +End: +--> diff --git a/Documentation/DocBook/v4l/vidioc-enuminput.xml b/Documentation/DocBook/v4l/vidioc-enuminput.xml index 71b868e2fb8..476fe1d2bba 100644 --- a/Documentation/DocBook/v4l/vidioc-enuminput.xml +++ b/Documentation/DocBook/v4l/vidioc-enuminput.xml @@ -283,7 +283,7 @@ input/output interface to linux-media@vger.kernel.org on 19 Oct 2009. <entry>This input supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry> </row> <row> - <entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry> + <entry><constant>V4L2_IN_CAP_CUSTOM_TIMINGS</constant></entry> <entry>0x00000002</entry> <entry>This input supports setting custom video timings by using VIDIOC_S_DV_TIMINGS.</entry> </row> diff --git a/Documentation/DocBook/v4l/vidioc-qbuf.xml b/Documentation/DocBook/v4l/vidioc-qbuf.xml index b843bd7b389..ab691ebf3b9 100644 --- a/Documentation/DocBook/v4l/vidioc-qbuf.xml +++ b/Documentation/DocBook/v4l/vidioc-qbuf.xml @@ -111,7 +111,11 @@ from the driver's outgoing queue. They just set the and <structfield>reserved</structfield> fields of a &v4l2-buffer; as above, when <constant>VIDIOC_DQBUF</constant> is called with a pointer to this structure the driver fills the -remaining fields or returns an error code.</para> +remaining fields or returns an error code. The driver may also set +<constant>V4L2_BUF_FLAG_ERROR</constant> in the <structfield>flags</structfield> +field. It indicates a non-critical (recoverable) streaming error. In such case +the application may continue as normal, but should be aware that data in the +dequeued buffer might be corrupted.</para> <para>By default <constant>VIDIOC_DQBUF</constant> blocks when no buffer is in the outgoing queue. When the @@ -158,7 +162,13 @@ enqueue a user pointer buffer.</para> <para><constant>VIDIOC_DQBUF</constant> failed due to an internal error. Can also indicate temporary problems like signal loss. Note the driver might dequeue an (empty) buffer despite -returning an error, or even stop capturing.</para> +returning an error, or even stop capturing. Reusing such buffer may be unsafe +though and its details (e.g. <structfield>index</structfield>) may not be +returned either. It is recommended that drivers indicate recoverable errors +by setting the <constant>V4L2_BUF_FLAG_ERROR</constant> and returning 0 instead. +In that case the application should be able to safely reuse the buffer and +continue streaming. + </para> </listitem> </varlistentry> </variablelist> diff --git a/Documentation/DocBook/v4l/vidioc-queryctrl.xml b/Documentation/DocBook/v4l/vidioc-queryctrl.xml index 4876ff1a1a0..8e0e055ac93 100644 --- a/Documentation/DocBook/v4l/vidioc-queryctrl.xml +++ b/Documentation/DocBook/v4l/vidioc-queryctrl.xml @@ -325,7 +325,7 @@ should be part of the control documentation.</entry> <entry>n/a</entry> <entry>This is not a control. When <constant>VIDIOC_QUERYCTRL</constant> is called with a control ID -equal to a control class code (see <xref linkend="ctrl-class" />), the +equal to a control class code (see <xref linkend="ctrl-class" />) + 1, the ioctl returns the name of the control class and this control type. Older drivers which do not support this feature return an &EINVAL;.</entry> diff --git a/Documentation/DocBook/v4l/vidioc-reqbufs.xml b/Documentation/DocBook/v4l/vidioc-reqbufs.xml index 1c081637207..69800ae2334 100644 --- a/Documentation/DocBook/v4l/vidioc-reqbufs.xml +++ b/Documentation/DocBook/v4l/vidioc-reqbufs.xml @@ -61,7 +61,7 @@ fields of the <structname>v4l2_requestbuffers</structname> structure. They set the <structfield>type</structfield> field to the respective stream or buffer type, the <structfield>count</structfield> field to the desired number of buffers, <structfield>memory</structfield> -must be set to the requested I/O method and the reserved array +must be set to the requested I/O method and the <structfield>reserved</structfield> array must be zeroed. When the ioctl is called with a pointer to this structure the driver will attempt to allocate the requested number of buffers and it stores the actual number diff --git a/Documentation/DocBook/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml new file mode 100644 index 00000000000..8b501791aa6 --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml @@ -0,0 +1,133 @@ +<refentry id="vidioc-subscribe-event"> + <refmeta> + <refentrytitle>ioctl VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refname> + <refpurpose>Subscribe or unsubscribe event</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_event_subscription +*<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_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para></para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Subscribe or unsubscribe V4L2 event. Subscribed events are + dequeued by using the &VIDIOC-DQEVENT; ioctl.</para> + + <table frame="none" pgwide="1" id="v4l2-event-subscription"> + <title>struct <structname>v4l2_event_subscription</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>__u32</entry> + <entry><structfield>type</structfield></entry> + <entry>Type of the event.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>reserved</structfield>[7]</entry> + <entry>Reserved for future extensions. Drivers and applications + must set the array to zero.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table frame="none" pgwide="1" id="event-type"> + <title>Event Types</title> + <tgroup cols="3"> + &cs-def; + <tbody valign="top"> + <row> + <entry><constant>V4L2_EVENT_ALL</constant></entry> + <entry>0</entry> + <entry>All events. V4L2_EVENT_ALL is valid only for + VIDIOC_UNSUBSCRIBE_EVENT for unsubscribing all events at once. + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_VSYNC</constant></entry> + <entry>1</entry> + <entry>This event is triggered on the vertical sync. + This event has &v4l2-event-vsync; associated with it. + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_EOS</constant></entry> + <entry>2</entry> + <entry>This event is triggered when the end of a stream is reached. + This is typically used with MPEG decoders to report to the application + when the last of the MPEG stream has been decoded. + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_PRIVATE_START</constant></entry> + <entry>0x08000000</entry> + <entry>Base event number for driver-private events.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table frame="none" pgwide="1" id="v4l2-event-vsync"> + <title>struct <structname>v4l2_event_vsync</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>__u8</entry> + <entry><structfield>field</structfield></entry> + <entry>The upcoming field. See &v4l2-field;.</entry> + </row> + </tbody> + </tgroup> + </table> + + </refsect1> +</refentry> +<!-- +Local Variables: +mode: sgml +sgml-parent-document: "v4l2.sgml" +indent-tabs-mode: nil +End: +--> diff --git a/Documentation/video4linux/CARDLIST.bttv b/Documentation/video4linux/CARDLIST.bttv index f11c583295e..4739d568430 100644 --- a/Documentation/video4linux/CARDLIST.bttv +++ b/Documentation/video4linux/CARDLIST.bttv @@ -100,7 +100,7 @@ 99 -> AD-TVK503 100 -> Hercules Smart TV Stereo 101 -> Pace TV & Radio Card -102 -> IVC-200 [0000:a155,0001:a155,0002:a155,0003:a155,0100:a155,0101:a155,0102:a155,0103:a155] +102 -> IVC-200 [0000:a155,0001:a155,0002:a155,0003:a155,0100:a155,0101:a155,0102:a155,0103:a155,0800:a155,0801:a155,0802:a155,0803:a155] 103 -> Grand X-Guard / Trust 814PCI [0304:0102] 104 -> Nebula Electronics DigiTV [0071:0101] 105 -> ProVideo PV143 [aa00:1430,aa00:1431,aa00:1432,aa00:1433,aa03:1433] diff --git a/Documentation/video4linux/CARDLIST.cx88 b/Documentation/video4linux/CARDLIST.cx88 index 7ec3c4e4b60..f2510541373 100644 --- a/Documentation/video4linux/CARDLIST.cx88 +++ b/Documentation/video4linux/CARDLIST.cx88 @@ -82,3 +82,4 @@ 81 -> Leadtek WinFast DTV1800 Hybrid [107d:6654] 82 -> WinFast DTV2000 H rev. J [107d:6f2b] 83 -> Prof 7301 DVB-S/S2 [b034:3034] + 84 -> Samsung SMT 7020 DVB-S [18ac:dc00,18ac:dccd] diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index 0c166ff003a..3a623aaeae5 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -1,5 +1,5 @@ 0 -> Unknown EM2800 video grabber (em2800) [eb1a:2800] - 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2862,eb1a:2870,eb1a:2881,eb1a:2883,eb1a:2868] + 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2862,eb1a:2863,eb1a:2870,eb1a:2881,eb1a:2883,eb1a:2868] 2 -> Terratec Cinergy 250 USB (em2820/em2840) [0ccd:0036] 3 -> Pinnacle PCTV USB 2 (em2820/em2840) [2304:0208] 4 -> Hauppauge WinTV USB 2 (em2820/em2840) [2040:4200,2040:4201] @@ -27,6 +27,7 @@ 26 -> Hercules Smart TV USB 2.0 (em2820/em2840) 27 -> Pinnacle PCTV USB 2 (Philips FM1216ME) (em2820/em2840) 28 -> Leadtek Winfast USB II Deluxe (em2820/em2840) + 29 -> EM2860/TVP5150 Reference Design (em2860) 30 -> Videology 20K14XUSB USB2.0 (em2820/em2840) 31 -> Usbgear VD204v9 (em2821) 32 -> Supercomp USB 2.0 TV (em2821) @@ -70,3 +71,4 @@ 72 -> Gadmei UTV330+ (em2861) 73 -> Reddo DVB-C USB TV Box (em2870) 74 -> Actionmaster/LinXcel/Digitus VC211A (em2800) + 75 -> Dikom DK300 (em2882) diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index b4a767060ed..070f2576707 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -175,3 +175,6 @@ 174 -> Asus Europa Hybrid OEM [1043:4847] 175 -> Leadtek Winfast DTV1000S [107d:6655] 176 -> Beholder BeholdTV 505 RDS [0000:5051] +177 -> Hawell HW-404M7 +179 -> Beholder BeholdTV H7 [5ace:7190] +180 -> Beholder BeholdTV A7 [5ace:7090] diff --git a/Documentation/video4linux/extract_xc3028.pl b/Documentation/video4linux/extract_xc3028.pl index 2cb816047fc..47877deae6d 100644 --- a/Documentation/video4linux/extract_xc3028.pl +++ b/Documentation/video4linux/extract_xc3028.pl @@ -5,12 +5,18 @@ # # In order to use, you need to: # 1) Download the windows driver with something like: +# Version 2.4 +# wget http://www.twinhan.com/files/AW/BDA T/20080303_V1.0.6.7.zip +# or wget http://www.stefanringel.de/pub/20080303_V1.0.6.7.zip +# Version 2.7 # wget http://www.steventoth.net/linux/xc5000/HVR-12x0-14x0-17x0_1_25_25271_WHQL.zip -# 2) Extract the file hcw85bda.sys from the zip into the current dir: +# 2) Extract the files from the zip into the current dir: +# unzip -j 20080303_V1.0.6.7.zip 20080303_v1.0.6.7/UDXTTM6000.sys # unzip -j HVR-12x0-14x0-17x0_1_25_25271_WHQL.zip Driver85/hcw85bda.sys # 3) run the script: # ./extract_xc3028.pl -# 4) copy the generated file: +# 4) copy the generated files: +# cp xc3028-v24.fw /lib/firmware # cp xc3028-v27.fw /lib/firmware #use strict; @@ -135,7 +141,7 @@ sub write_hunk_fix_endian($$) } } -sub main_firmware($$$$) +sub main_firmware_24($$$$) { my $out; my $j=0; @@ -146,8 +152,774 @@ sub main_firmware($$$$) for ($j = length($name); $j <32; $j++) { $name = $name.chr(0); + } + + open OUTFILE, ">$outfile"; + syswrite(OUTFILE, $name); + write_le16($version); + write_le16($nr_desc); + + # + # Firmware 0, type: BASE FW F8MHZ (0x00000003), id: (0000000000000000), size: 6635 + # + + write_le32(0x00000003); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(6635); # Size + write_hunk_fix_endian(257752, 6635); + + # + # Firmware 1, type: BASE FW F8MHZ MTS (0x00000007), id: (0000000000000000), size: 6635 + # + + write_le32(0x00000007); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(6635); # Size + write_hunk_fix_endian(264392, 6635); + + # + # Firmware 2, type: BASE FW FM (0x00000401), id: (0000000000000000), size: 6525 + # + + write_le32(0x00000401); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(6525); # Size + write_hunk_fix_endian(271040, 6525); + + # + # Firmware 3, type: BASE FW FM INPUT1 (0x00000c01), id: (0000000000000000), size: 6539 + # + + write_le32(0x00000c01); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(6539); # Size + write_hunk_fix_endian(277568, 6539); + + # + # Firmware 4, type: BASE FW (0x00000001), id: (0000000000000000), size: 6633 + # + + write_le32(0x00000001); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(6633); # Size + write_hunk_fix_endian(284120, 6633); + + # + # Firmware 5, type: BASE FW MTS (0x00000005), id: (0000000000000000), size: 6617 + # + + write_le32(0x00000005); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(6617); # Size + write_hunk_fix_endian(290760, 6617); + + # + # Firmware 6, type: STD FW (0x00000000), id: PAL/BG A2/A (0000000100000007), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000001, 0x00000007); # ID + write_le32(161); # Size + write_hunk_fix_endian(297384, 161); + + # + # Firmware 7, type: STD FW MTS (0x00000004), id: PAL/BG A2/A (0000000100000007), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000001, 0x00000007); # ID + write_le32(169); # Size + write_hunk_fix_endian(297552, 169); + + # + # Firmware 8, type: STD FW (0x00000000), id: PAL/BG A2/B (0000000200000007), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000002, 0x00000007); # ID + write_le32(161); # Size + write_hunk_fix_endian(297728, 161); + + # + # Firmware 9, type: STD FW MTS (0x00000004), id: PAL/BG A2/B (0000000200000007), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000002, 0x00000007); # ID + write_le32(169); # Size + write_hunk_fix_endian(297896, 169); + + # + # Firmware 10, type: STD FW (0x00000000), id: PAL/BG NICAM/A (0000000400000007), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000004, 0x00000007); # ID + write_le32(161); # Size + write_hunk_fix_endian(298072, 161); + + # + # Firmware 11, type: STD FW MTS (0x00000004), id: PAL/BG NICAM/A (0000000400000007), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000004, 0x00000007); # ID + write_le32(169); # Size + write_hunk_fix_endian(298240, 169); + + # + # Firmware 12, type: STD FW (0x00000000), id: PAL/BG NICAM/B (0000000800000007), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000008, 0x00000007); # ID + write_le32(161); # Size + write_hunk_fix_endian(298416, 161); + + # + # Firmware 13, type: STD FW MTS (0x00000004), id: PAL/BG NICAM/B (0000000800000007), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000008, 0x00000007); # ID + write_le32(169); # Size + write_hunk_fix_endian(298584, 169); + + # + # Firmware 14, type: STD FW (0x00000000), id: PAL/DK A2 (00000003000000e0), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000003, 0x000000e0); # ID + write_le32(161); # Size + write_hunk_fix_endian(298760, 161); + + # + # Firmware 15, type: STD FW MTS (0x00000004), id: PAL/DK A2 (00000003000000e0), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000003, 0x000000e0); # ID + write_le32(169); # Size + write_hunk_fix_endian(298928, 169); + + # + # Firmware 16, type: STD FW (0x00000000), id: PAL/DK NICAM (0000000c000000e0), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x0000000c, 0x000000e0); # ID + write_le32(161); # Size + write_hunk_fix_endian(299104, 161); + + # + # Firmware 17, type: STD FW MTS (0x00000004), id: PAL/DK NICAM (0000000c000000e0), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x0000000c, 0x000000e0); # ID + write_le32(169); # Size + write_hunk_fix_endian(299272, 169); + + # + # Firmware 18, type: STD FW (0x00000000), id: SECAM/K1 (0000000000200000), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x00200000); # ID + write_le32(161); # Size + write_hunk_fix_endian(299448, 161); + + # + # Firmware 19, type: STD FW MTS (0x00000004), id: SECAM/K1 (0000000000200000), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000000, 0x00200000); # ID + write_le32(169); # Size + write_hunk_fix_endian(299616, 169); + + # + # Firmware 20, type: STD FW (0x00000000), id: SECAM/K3 (0000000004000000), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x04000000); # ID + write_le32(161); # Size + write_hunk_fix_endian(299792, 161); + + # + # Firmware 21, type: STD FW MTS (0x00000004), id: SECAM/K3 (0000000004000000), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000000, 0x04000000); # ID + write_le32(169); # Size + write_hunk_fix_endian(299960, 169); + + # + # Firmware 22, type: STD FW D2633 DTV6 ATSC (0x00010030), id: (0000000000000000), size: 149 + # + + write_le32(0x00010030); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(300136, 149); + + # + # Firmware 23, type: STD FW D2620 DTV6 QAM (0x00000068), id: (0000000000000000), size: 149 + # + + write_le32(0x00000068); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(300296, 149); + + # + # Firmware 24, type: STD FW D2633 DTV6 QAM (0x00000070), id: (0000000000000000), size: 149 + # + + write_le32(0x00000070); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(300448, 149); + + # + # Firmware 25, type: STD FW D2620 DTV7 (0x00000088), id: (0000000000000000), size: 149 + # + + write_le32(0x00000088); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(300608, 149); + + # + # Firmware 26, type: STD FW D2633 DTV7 (0x00000090), id: (0000000000000000), size: 149 + # + + write_le32(0x00000090); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(300760, 149); + + # + # Firmware 27, type: STD FW D2620 DTV78 (0x00000108), id: (0000000000000000), size: 149 + # + + write_le32(0x00000108); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(300920, 149); + + # + # Firmware 28, type: STD FW D2633 DTV78 (0x00000110), id: (0000000000000000), size: 149 + # + + write_le32(0x00000110); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(301072, 149); + + # + # Firmware 29, type: STD FW D2620 DTV8 (0x00000208), id: (0000000000000000), size: 149 + # + + write_le32(0x00000208); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(301232, 149); + + # + # Firmware 30, type: STD FW D2633 DTV8 (0x00000210), id: (0000000000000000), size: 149 + # + + write_le32(0x00000210); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(149); # Size + write_hunk_fix_endian(301384, 149); + + # + # Firmware 31, type: STD FW FM (0x00000400), id: (0000000000000000), size: 135 + # + + write_le32(0x00000400); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le32(135); # Size + write_hunk_fix_endian(301554, 135); + + # + # Firmware 32, type: STD FW (0x00000000), id: PAL/I (0000000000000010), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x00000010); # ID + write_le32(161); # Size + write_hunk_fix_endian(301688, 161); + + # + # Firmware 33, type: STD FW MTS (0x00000004), id: PAL/I (0000000000000010), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000000, 0x00000010); # ID + write_le32(169); # Size + write_hunk_fix_endian(301856, 169); + + # + # Firmware 34, type: STD FW (0x00000000), id: SECAM/L AM (0000001000400000), size: 169 + # + + # + # Firmware 35, type: STD FW (0x00000000), id: SECAM/L NICAM (0000000c00400000), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x0000000c, 0x00400000); # ID + write_le32(161); # Size + write_hunk_fix_endian(302032, 161); + + # + # Firmware 36, type: STD FW (0x00000000), id: SECAM/Lc (0000000000800000), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x00800000); # ID + write_le32(161); # Size + write_hunk_fix_endian(302200, 161); + + # + # Firmware 37, type: STD FW (0x00000000), id: NTSC/M Kr (0000000000008000), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x00008000); # ID + write_le32(161); # Size + write_hunk_fix_endian(302368, 161); + + # + # Firmware 38, type: STD FW LCD (0x00001000), id: NTSC/M Kr (0000000000008000), size: 161 + # + + write_le32(0x00001000); # Type + write_le64(0x00000000, 0x00008000); # ID + write_le32(161); # Size + write_hunk_fix_endian(302536, 161); + + # + # Firmware 39, type: STD FW LCD NOGD (0x00003000), id: NTSC/M Kr (0000000000008000), size: 161 + # + + write_le32(0x00003000); # Type + write_le64(0x00000000, 0x00008000); # ID + write_le32(161); # Size + write_hunk_fix_endian(302704, 161); + + # + # Firmware 40, type: STD FW MTS (0x00000004), id: NTSC/M Kr (0000000000008000), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000000, 0x00008000); # ID + write_le32(169); # Size + write_hunk_fix_endian(302872, 169); + + # + # Firmware 41, type: STD FW (0x00000000), id: NTSC PAL/M PAL/N (000000000000b700), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le32(161); # Size + write_hunk_fix_endian(303048, 161); + + # + # Firmware 42, type: STD FW LCD (0x00001000), id: NTSC PAL/M PAL/N (000000000000b700), size: 161 + # + + write_le32(0x00001000); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le32(161); # Size + write_hunk_fix_endian(303216, 161); + + # + # Firmware 43, type: STD FW LCD NOGD (0x00003000), id: NTSC PAL/M PAL/N (000000000000b700), size: 161 + # + + write_le32(0x00003000); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le32(161); # Size + write_hunk_fix_endian(303384, 161); + + # + # Firmware 44, type: STD FW (0x00000000), id: NTSC/M Jp (0000000000002000), size: 161 + # + + write_le32(0x00000000); # Type + write_le64(0x00000000, 0x00002000); # ID + write_le32(161); # Size + write_hunk_fix_endian(303552, 161); + + # + # Firmware 45, type: STD FW MTS (0x00000004), id: NTSC PAL/M PAL/N (000000000000b700), size: 169 + # + + write_le32(0x00000004); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le32(169); # Size + write_hunk_fix_endian(303720, 169); + + # + # Firmware 46, type: STD FW MTS LCD (0x00001004), id: NTSC PAL/M PAL/N (000000000000b700), size: 169 + # + + write_le32(0x00001004); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le32(169); # Size + write_hunk_fix_endian(303896, 169); + + # + # Firmware 47, type: STD FW MTS LCD NOGD (0x00003004), id: NTSC PAL/M PAL/N (000000000000b700), size: 169 + # + + write_le32(0x00003004); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le32(169); # Size + write_hunk_fix_endian(304072, 169); + + # + # Firmware 48, type: SCODE FW HAS IF (0x60000000), IF = 3.28 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(3280); # IF + write_le32(192); # Size + write_hunk(309048, 192); + + # + # Firmware 49, type: SCODE FW HAS IF (0x60000000), IF = 3.30 MHz id: (0000000000000000), size: 192 + # + +# write_le32(0x60000000); # Type +# write_le64(0x00000000, 0x00000000); # ID +# write_le16(3300); # IF +# write_le32(192); # Size +# write_hunk(304440, 192); + + # + # Firmware 50, type: SCODE FW HAS IF (0x60000000), IF = 3.44 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(3440); # IF + write_le32(192); # Size + write_hunk(309432, 192); + + # + # Firmware 51, type: SCODE FW HAS IF (0x60000000), IF = 3.46 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(3460); # IF + write_le32(192); # Size + write_hunk(309624, 192); + + # + # Firmware 52, type: SCODE FW DTV6 ATSC OREN36 HAS IF (0x60210020), IF = 3.80 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60210020); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(3800); # IF + write_le32(192); # Size + write_hunk(306936, 192); + + # + # Firmware 53, type: SCODE FW HAS IF (0x60000000), IF = 4.00 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(4000); # IF + write_le32(192); # Size + write_hunk(309240, 192); + + # + # Firmware 54, type: SCODE FW DTV6 ATSC TOYOTA388 HAS IF (0x60410020), IF = 4.08 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60410020); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(4080); # IF + write_le32(192); # Size + write_hunk(307128, 192); + + # + # Firmware 55, type: SCODE FW HAS IF (0x60000000), IF = 4.20 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(4200); # IF + write_le32(192); # Size + write_hunk(308856, 192); + + # + # Firmware 56, type: SCODE FW MONO HAS IF (0x60008000), IF = 4.32 MHz id: NTSC/M Kr (0000000000008000), size: 192 + # + + write_le32(0x60008000); # Type + write_le64(0x00000000, 0x00008000); # ID + write_le16(4320); # IF + write_le32(192); # Size + write_hunk(305208, 192); + + # + # Firmware 57, type: SCODE FW HAS IF (0x60000000), IF = 4.45 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(4450); # IF + write_le32(192); # Size + write_hunk(309816, 192); + + # + # Firmware 58, type: SCODE FW MTS LCD NOGD MONO IF HAS IF (0x6002b004), IF = 4.50 MHz id: NTSC PAL/M PAL/N (000000000000b700), size: 192 + # + + write_le32(0x6002b004); # Type + write_le64(0x00000000, 0x0000b700); # ID + write_le16(4500); # IF + write_le32(192); # Size + write_hunk(304824, 192); + + # + # Firmware 59, type: SCODE FW LCD NOGD IF HAS IF (0x60023000), IF = 4.60 MHz id: NTSC/M Kr (0000000000008000), size: 192 + # + + write_le32(0x60023000); # Type + write_le64(0x00000000, 0x00008000); # ID + write_le16(4600); # IF + write_le32(192); # Size + write_hunk(305016, 192); + + # + # Firmware 60, type: SCODE FW DTV6 QAM DTV7 DTV78 DTV8 ZARLINK456 HAS IF (0x620003e0), IF = 4.76 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x620003e0); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(4760); # IF + write_le32(192); # Size + write_hunk(304440, 192); + + # + # Firmware 61, type: SCODE FW HAS IF (0x60000000), IF = 4.94 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(4940); # IF + write_le32(192); # Size + write_hunk(308664, 192); + + # + # Firmware 62, type: SCODE FW HAS IF (0x60000000), IF = 5.26 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(5260); # IF + write_le32(192); # Size + write_hunk(307704, 192); + + # + # Firmware 63, type: SCODE FW MONO HAS IF (0x60008000), IF = 5.32 MHz id: PAL/BG A2 NICAM (0000000f00000007), size: 192 + # + + write_le32(0x60008000); # Type + write_le64(0x0000000f, 0x00000007); # ID + write_le16(5320); # IF + write_le32(192); # Size + write_hunk(307896, 192); + + # + # Firmware 64, type: SCODE FW DTV7 DTV78 DTV8 DIBCOM52 CHINA HAS IF (0x65000380), IF = 5.40 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x65000380); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(5400); # IF + write_le32(192); # Size + write_hunk(304248, 192); + + # + # Firmware 65, type: SCODE FW DTV6 ATSC OREN538 HAS IF (0x60110020), IF = 5.58 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60110020); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(5580); # IF + write_le32(192); # Size + write_hunk(306744, 192); + + # + # Firmware 66, type: SCODE FW HAS IF (0x60000000), IF = 5.64 MHz id: PAL/BG A2 (0000000300000007), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000003, 0x00000007); # ID + write_le16(5640); # IF + write_le32(192); # Size + write_hunk(305592, 192); + + # + # Firmware 67, type: SCODE FW HAS IF (0x60000000), IF = 5.74 MHz id: PAL/BG NICAM (0000000c00000007), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x0000000c, 0x00000007); # ID + write_le16(5740); # IF + write_le32(192); # Size + write_hunk(305784, 192); + + # + # Firmware 68, type: SCODE FW HAS IF (0x60000000), IF = 5.90 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(5900); # IF + write_le32(192); # Size + write_hunk(307512, 192); + + # + # Firmware 69, type: SCODE FW MONO HAS IF (0x60008000), IF = 6.00 MHz id: PAL/DK PAL/I SECAM/K3 SECAM/L SECAM/Lc NICAM (0000000c04c000f0), size: 192 + # + + write_le32(0x60008000); # Type + write_le64(0x0000000c, 0x04c000f0); # ID + write_le16(6000); # IF + write_le32(192); # Size + write_hunk(305576, 192); + + # + # Firmware 70, type: SCODE FW DTV6 QAM ATSC LG60 F6MHZ HAS IF (0x68050060), IF = 6.20 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x68050060); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(6200); # IF + write_le32(192); # Size + write_hunk(306552, 192); + + # + # Firmware 71, type: SCODE FW HAS IF (0x60000000), IF = 6.24 MHz id: PAL/I (0000000000000010), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00000010); # ID + write_le16(6240); # IF + write_le32(192); # Size + write_hunk(305400, 192); + + # + # Firmware 72, type: SCODE FW MONO HAS IF (0x60008000), IF = 6.32 MHz id: SECAM/K1 (0000000000200000), size: 192 + # + + write_le32(0x60008000); # Type + write_le64(0x00000000, 0x00200000); # ID + write_le16(6320); # IF + write_le32(192); # Size + write_hunk(308472, 192); + + # + # Firmware 73, type: SCODE FW HAS IF (0x60000000), IF = 6.34 MHz id: SECAM/K1 (0000000000200000), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000000, 0x00200000); # ID + write_le16(6340); # IF + write_le32(192); # Size + write_hunk(306360, 192); + + # + # Firmware 74, type: SCODE FW MONO HAS IF (0x60008000), IF = 6.50 MHz id: PAL/DK SECAM/K3 SECAM/L NICAM (0000000c044000e0), size: 192 + # + + write_le32(0x60008000); # Type + write_le64(0x0000000c, 0x044000e0); # ID + write_le16(6500); # IF + write_le32(192); # Size + write_hunk(308280, 192); + + # + # Firmware 75, type: SCODE FW DTV6 ATSC ATI638 HAS IF (0x60090020), IF = 6.58 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60090020); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(6580); # IF + write_le32(192); # Size + write_hunk(304632, 192); + + # + # Firmware 76, type: SCODE FW HAS IF (0x60000000), IF = 6.60 MHz id: PAL/DK A2 (00000003000000e0), size: 192 + # + + write_le32(0x60000000); # Type + write_le64(0x00000003, 0x000000e0); # ID + write_le16(6600); # IF + write_le32(192); # Size + write_hunk(306168, 192); + + # + # Firmware 77, type: SCODE FW MONO HAS IF (0x60008000), IF = 6.68 MHz id: PAL/DK A2 (00000003000000e0), size: 192 + # + + write_le32(0x60008000); # Type + write_le64(0x00000003, 0x000000e0); # ID + write_le16(6680); # IF + write_le32(192); # Size + write_hunk(308088, 192); + + # + # Firmware 78, type: SCODE FW DTV6 ATSC TOYOTA794 HAS IF (0x60810020), IF = 8.14 MHz id: (0000000000000000), size: 192 + # + + write_le32(0x60810020); # Type + write_le64(0x00000000, 0x00000000); # ID + write_le16(8140); # IF + write_le32(192); # Size + write_hunk(307320, 192); + + # + # Firmware 79, type: SCODE FW HAS IF (0x60000000), IF = 8.20 MHz id: (0000000000000000), size: 192 + # + +# write_le32(0x60000000); # Type +# write_le64(0x00000000, 0x00000000); # ID +# write_le16(8200); # IF +# write_le32(192); # Size +# write_hunk(308088, 192); } +sub main_firmware_27($$$$) +{ + my $out; + my $j=0; + my $outfile = shift; + my $name = shift; + my $version = shift; + my $nr_desc = shift; + + for ($j = length($name); $j <32; $j++) { + $name = $name.chr(0); + } + open OUTFILE, ">$outfile"; syswrite(OUTFILE, $name); write_le16($version); @@ -906,20 +1678,39 @@ sub main_firmware($$$$) write_hunk(812856, 192); } + sub extract_firmware { - my $sourcefile = "hcw85bda.sys"; - my $hash = "0e44dbf63bb0169d57446aec21881ff2"; - my $outfile = "xc3028-v27.fw"; - my $name = "xc2028 firmware"; - my $version = 519; - my $nr_desc = 80; + my $sourcefile_24 = "UDXTTM6000.sys"; + my $hash_24 = "cb9deb5508a5e150af2880f5b0066d78"; + my $outfile_24 = "xc3028-v24.fw"; + my $name_24 = "xc2028 firmware"; + my $version_24 = 516; + my $nr_desc_24 = 77; + my $out; + + my $sourcefile_27 = "hcw85bda.sys"; + my $hash_27 = "0e44dbf63bb0169d57446aec21881ff2"; + my $outfile_27 = "xc3028-v27.fw"; + my $name_27 = "xc2028 firmware"; + my $version_27 = 519; + my $nr_desc_27 = 80; my $out; - verify($sourcefile, $hash); + if (-e $sourcefile_24) { + verify($sourcefile_24, $hash_24); + + open INFILE, "<$sourcefile_24"; + main_firmware_24($outfile_24, $name_24, $version_24, $nr_desc_24); + close INFILE; + } - open INFILE, "<$sourcefile"; - main_firmware($outfile, $name, $version, $nr_desc); - close INFILE; + if (-e $sourcefile_27) { + verify($sourcefile_27, $hash_27); + + open INFILE, "<$sourcefile_27"; + main_firmware_27($outfile_27, $name_27, $version_27, $nr_desc_27); + close INFILE; + } } extract_firmware; diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index 181b9e6fd98..8f3f5d33327 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt @@ -50,6 +50,8 @@ zc3xx 0458:700f Genius VideoCam Web V2 sonixj 0458:7025 Genius Eye 311Q sn9c20x 0458:7029 Genius Look 320s sonixj 0458:702e Genius Slim 310 NB +sn9c20x 0458:704a Genius Slim 1320 +sn9c20x 0458:704c Genius i-Look 1321 sn9c20x 045e:00f4 LifeCam VX-6000 (SN9C20x + OV9650) sonixj 045e:00f5 MicroSoft VX3000 sonixj 045e:00f7 MicroSoft VX1000 @@ -305,12 +307,14 @@ sonixj 0c45:6138 Sn9c120 Mo4000 sonixj 0c45:613a Microdia Sonix PC Camera sonixj 0c45:613b Surfer SN-206 sonixj 0c45:613c Sonix Pccam168 +sonixj 0c45:6142 Hama PC-Webcam AC-150 sonixj 0c45:6143 Sonix Pccam168 sonixj 0c45:6148 Digitus DA-70811/ZSMC USB PC Camera ZS211/Microdia sonixj 0c45:614a Frontech E-Ccam (JIL-2225) sn9c20x 0c45:6240 PC Camera (SN9C201 + MT9M001) sn9c20x 0c45:6242 PC Camera (SN9C201 + MT9M111) sn9c20x 0c45:6248 PC Camera (SN9C201 + OV9655) +sn9c20x 0c45:624c PC Camera (SN9C201 + MT9M112) sn9c20x 0c45:624e PC Camera (SN9C201 + SOI968) sn9c20x 0c45:624f PC Camera (SN9C201 + OV9650) sn9c20x 0c45:6251 PC Camera (SN9C201 + OV9650) @@ -323,6 +327,7 @@ sn9c20x 0c45:627f PC Camera (SN9C201 + OV9650) sn9c20x 0c45:6280 PC Camera (SN9C202 + MT9M001) sn9c20x 0c45:6282 PC Camera (SN9C202 + MT9M111) sn9c20x 0c45:6288 PC Camera (SN9C202 + OV9655) +sn9c20x 0c45:628c PC Camera (SN9C201 + MT9M112) sn9c20x 0c45:628e PC Camera (SN9C202 + SOI968) sn9c20x 0c45:628f PC Camera (SN9C202 + OV9650) sn9c20x 0c45:62a0 PC Camera (SN9C202 + OV7670) diff --git a/Documentation/video4linux/sh_mobile_ceu_camera.txt b/Documentation/video4linux/sh_mobile_ceu_camera.txt index 2ae16349a78..cb47e723af7 100644 --- a/Documentation/video4linux/sh_mobile_ceu_camera.txt +++ b/Documentation/video4linux/sh_mobile_ceu_camera.txt @@ -17,18 +17,18 @@ Generic scaling / cropping scheme -2-- -\ | --\ | --\ -+-5-- -\ -- -3-- -| ---\ -| --- -4-- -\ -| -\ -| - -6-- ++-5-- . -- -3-- -\ +| `... -\ +| `... -4-- . - -7.. +| `. +| `. .6-- | -| - -6'- -| -/ -| --- -4'- -/ -| ---/ -+-5'- -/ -| -- -3'- +| . .6'- +| .´ +| ... -4'- .´ +| ...´ - -7'. ++-5'- .´ -/ +| -- -3'- -/ | --/ | --/ -2'- -/ @@ -36,7 +36,11 @@ Generic scaling / cropping scheme | -1'- -Produced by user requests: +In the above chart minuses and slashes represent "real" data amounts, points and +accents represent "useful" data, basically, CEU scaled amd cropped output, +mapped back onto the client's source plane. + +Such a configuration can be produced by user requests: S_CROP(left / top = (5) - (1), width / height = (5') - (5)) S_FMT(width / height = (6') - (6)) @@ -106,52 +110,30 @@ window: S_CROP ------ -If old scale applied to new crop is invalid produce nearest new scale possible - -1. Calculate current combined scales. - - scale_comb = (((4') - (4)) / ((6') - (6))) * (((2') - (2)) / ((3') - (3))) - -2. Apply iterative sensor S_CROP for new input window. - -3. If old combined scales applied to new crop produce an impossible user window, -adjust scales to produce nearest possible window. - - width_u_out = ((5') - (5)) / scale_comb +The API at http://v4l2spec.bytesex.org/spec/x1904.htm says: - if (width_u_out > max) - scale_comb = ((5') - (5)) / max; - else if (width_u_out < min) - scale_comb = ((5') - (5)) / min; +"...specification does not define an origin or units. However by convention +drivers should horizontally count unscaled samples relative to 0H." -4. Issue G_CROP to retrieve actual input window. +We choose to follow the advise and interpret cropping units as client input +pixels. -5. Using actual input window and calculated combined scales calculate sensor -target output window. - - width_s_out = ((3') - (3)) = ((2') - (2)) / scale_comb - -6. Apply iterative S_FMT for new sensor target output window. - -7. Issue G_FMT to retrieve the actual sensor output window. - -8. Calculate sensor scales. - - scale_s = ((3') - (3)) / ((2') - (2)) +Cropping is performed in the following 6 steps: -9. Calculate sensor output subwindow to be cropped on CEU by applying sensor -scales to the requested window. +1. Request exactly user rectangle from the sensor. - width_ceu = ((5') - (5)) / scale_s +2. If smaller - iterate until a larger one is obtained. Result: sensor cropped + to 2 : 2', target crop 5 : 5', current output format 6' - 6. -10. Use CEU cropping for above calculated window. +3. In the previous step the sensor has tried to preserve its output frame as + good as possible, but it could have changed. Retrieve it again. -11. Calculate CEU scales from sensor scales from results of (10) and user window -from (3) +4. Sensor scaled to 3 : 3'. Sensor's scale is (2' - 2) / (3' - 3). Calculate + intermediate window: 4' - 4 = (5' - 5) * (3' - 3) / (2' - 2) - scale_ceu = calc_scale(((5') - (5)), &width_u_out) +5. Calculate and apply host scale = (6' - 6) / (4' - 4) -12. Apply CEU scales. +6. Calculate and apply host crop: 6 - 7 = (5 - 2) * (6' - 6) / (5' - 5) -- Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de> diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 5155700c206..e831aaca66f 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -545,12 +545,11 @@ unregister them: This will remove the device nodes from sysfs (causing udev to remove them from /dev). -After video_unregister_device() returns no new opens can be done. - -However, in the case of USB devices some application might still have one -of these device nodes open. You should block all new accesses to read, -write, poll, etc. except possibly for certain ioctl operations like -queueing buffers. +After video_unregister_device() returns no new opens can be done. However, +in the case of USB devices some application might still have one of these +device nodes open. So after the unregister all file operations will return +an error as well, except for the ioctl and unlocked_ioctl file operations: +those will still be passed on since some buffer ioctls may still be needed. When the last user of the video device node exits, then the vdev->release() callback is called and you can do the final cleanup there. @@ -609,3 +608,135 @@ scatter/gather method (videobuf-dma-sg), DMA with linear access Please see Documentation/video4linux/videobuf for more information on how to use the videobuf layer. + +struct v4l2_fh +-------------- + +struct v4l2_fh provides a way to easily keep file handle specific data +that is used by the V4L2 framework. Using v4l2_fh is optional for +drivers. + +The users of v4l2_fh (in the V4L2 framework, not the driver) know +whether a driver uses v4l2_fh as its file->private_data pointer by +testing the V4L2_FL_USES_V4L2_FH bit in video_device->flags. + +Useful functions: + +- v4l2_fh_init() + + Initialise the file handle. This *MUST* be performed in the driver's + v4l2_file_operations->open() handler. + +- v4l2_fh_add() + + Add a v4l2_fh to video_device file handle list. May be called after + initialising the file handle. + +- v4l2_fh_del() + + Unassociate the file handle from video_device(). The file handle + exit function may now be called. + +- v4l2_fh_exit() + + Uninitialise the file handle. After uninitialisation the v4l2_fh + memory can be freed. + +struct v4l2_fh is allocated as a part of the driver's own file handle +structure and is set to file->private_data in the driver's open +function by the driver. Drivers can extract their own file handle +structure by using the container_of macro. Example: + +struct my_fh { + int blah; + struct v4l2_fh fh; +}; + +... + +int my_open(struct file *file) +{ + struct my_fh *my_fh; + struct video_device *vfd; + int ret; + + ... + + ret = v4l2_fh_init(&my_fh->fh, vfd); + if (ret) + return ret; + + v4l2_fh_add(&my_fh->fh); + + file->private_data = &my_fh->fh; + + ... +} + +int my_release(struct file *file) +{ + struct v4l2_fh *fh = file->private_data; + struct my_fh *my_fh = container_of(fh, struct my_fh, fh); + + ... +} + +V4L2 events +----------- + +The V4L2 events provide a generic way to pass events to user space. +The driver must use v4l2_fh to be able to support V4L2 events. + +Useful functions: + +- v4l2_event_alloc() + + To use events, the driver must allocate events for the file handle. By + calling the function more than once, the driver may assure that at least n + events in total have been allocated. The function may not be called in + atomic context. + +- v4l2_event_queue() + + Queue events to video device. The driver's only responsibility is to fill + in the type and the data fields. The other fields will be filled in by + V4L2. + +- v4l2_event_subscribe() + + The video_device->ioctl_ops->vidioc_subscribe_event must check the driver + is able to produce events with specified event id. Then it calls + v4l2_event_subscribe() to subscribe the event. + +- v4l2_event_unsubscribe() + + vidioc_unsubscribe_event in struct v4l2_ioctl_ops. A driver may use + v4l2_event_unsubscribe() directly unless it wants to be involved in + unsubscription process. + + The special type V4L2_EVENT_ALL may be used to unsubscribe all events. The + drivers may want to handle this in a special way. + +- v4l2_event_pending() + + Returns the number of pending events. Useful when implementing poll. + +Drivers do not initialise events directly. The events are initialised +through v4l2_fh_init() if video_device->ioctl_ops->vidioc_subscribe_event is +non-NULL. This *MUST* be performed in the driver's +v4l2_file_operations->open() handler. + +Events are delivered to user space through the poll system call. The driver +can use v4l2_fh->events->wait wait_queue_head_t as the argument for +poll_wait(). + +There are standard and private events. New standard events must use the +smallest available event type. The drivers must allocate their events from +their own class starting from class base. Class base is +V4L2_EVENT_PRIVATE_START + n * 1000 where n is the lowest available number. +The first event type in the class is reserved for future use, so the first +available event type is 'class base + 1'. + +An example on how the V4L2 events may be used can be found in the OMAP +3 ISP driver available at <URL:http://gitorious.org/omap3camera> as of +writing this. |