diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-26 02:55:48 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-26 02:55:48 +0200 |
| commit | 5b4ca4447757019f11a601b0009534ef84bed801 (patch) | |
| tree | 09bc8445e61aea621580d7587c21ac3f2b0cafb4 /Documentation/DocBook | |
| parent | Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/l... (diff) | |
| parent | [media] lmedm04: fix the range for relative measurements (diff) | |
| download | linux-5b4ca4447757019f11a601b0009534ef84bed801.tar.xz linux-5b4ca4447757019f11a601b0009534ef84bed801.zip | |
Merge tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Lots of improvements at the DVB API DocBook documentation. Now, the
frontend and the network APIs are fully in sync with the Kernel and
looks more like the rest of the media documentation;
- New frontend driver: cx24120
- New driver for a PCI device: cobalt. This driver is actually not
sold in the market, but it is a good example of a multi-HDMI input
device;
- The dt3155 driver were promoted from staging;
- The mantis driver got remote controller support;
- New V4L2 driver for ST bdisp SoC chipsets;
- Make sparse and smatch happier: several bugs were solved by fixing
the issues reported by those static code analyzers.
- Lots of new device additions, new features, improvements and cleanups
at the existing drivers.
* tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (553 commits)
[media] lmedm04: fix the range for relative measurements
[media] lmedm04: use u32 instead of u64 for relative stats
[media] omap3isp: remove unused var
[media] saa7134: fix page size on some archs
[media] use CONFIG_PM_SLEEP for suspend/resume
[media] tuner-i2c: be consistent with I2C declaration
[media] si470x: cleanup define namespace
[media] bdisp: prevent compiling on random arch
[media] vb2: Don't WARN when v4l2_buffer.bytesused is 0 for multiplanar buffers
[media] MAINTAINERS: Add entry for the Renesas VSP1 driver
[media] videodev2.h: fix copy-and-paste error in V4L2_MAP_XFER_FUNC_DEFAULT
[media] Revert "[media] vb2: Push mmap_sem down to memops"
[media] mantis: cleanup a warning
[media] bdisp-debug: don't try to divide by s64
[media] cx88: don't declare restart_video_queue if not used
[media] au0828: move dev->boards atribuition to happen earlier
[media] lmedm04: implement dvb v5 statistics
[media] bdisp: remove unused var
[media] bdisp: remove needless check
ts2020: fix compilation on i386
...
Diffstat (limited to 'Documentation/DocBook')
49 files changed, 3398 insertions, 2188 deletions
diff --git a/Documentation/DocBook/media/.gitignore b/Documentation/DocBook/media/.gitignore new file mode 100644 index 000000000000..e461c585fde8 --- /dev/null +++ b/Documentation/DocBook/media/.gitignore @@ -0,0 +1 @@ +!*.svg diff --git a/Documentation/DocBook/media/Makefile b/Documentation/DocBook/media/Makefile index 8bf7c6191296..23996f88cd58 100644 --- a/Documentation/DocBook/media/Makefile +++ b/Documentation/DocBook/media/Makefile @@ -65,29 +65,31 @@ IOCTLS = \ $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/video.h) \ $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/media.h) \ $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \ - VIDIOC_SUBDEV_G_FRAME_INTERVAL \ - VIDIOC_SUBDEV_S_FRAME_INTERVAL \ - VIDIOC_SUBDEV_ENUM_MBUS_CODE \ - VIDIOC_SUBDEV_ENUM_FRAME_SIZE \ - VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \ - VIDIOC_SUBDEV_G_SELECTION \ - VIDIOC_SUBDEV_S_SELECTION \ + +DEFINES = \ + $(shell perl -ne 'print "$$1 " if /\#define\s+(DTV_[^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/frontend.h) \ TYPES = \ - $(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/uapi/linux/videodev2.h) \ - $(shell perl -ne 'print "$$1 " if /^}\s+([a-z0-9_]+_t)/' $(srctree)/include/uapi/linux/dvb/frontend.h) + $(shell perl -ne 'print "$$1 " if /^typedef\s+.*\s+(\S+)\;/' $(srctree)/include/uapi/linux/videodev2.h) \ + $(shell perl -ne 'print "$$1 " if /^typedef\s+.*\s+(\S+)\;/' $(srctree)/include/uapi/linux/dvb/frontend.h) ENUMS = \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/audio.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/ca.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/dmx.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/frontend.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/net.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/video.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-mediabus.h) \ - $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h) + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' \ + $(srctree)/include/uapi/linux/videodev2.h \ + $(srctree)/include/uapi/linux/dvb/audio.h \ + $(srctree)/include/uapi/linux/dvb/ca.h \ + $(srctree)/include/uapi/linux/dvb/dmx.h \ + $(srctree)/include/uapi/linux/dvb/frontend.h \ + $(srctree)/include/uapi/linux/dvb/net.h \ + $(srctree)/include/uapi/linux/dvb/video.h \ + $(srctree)/include/uapi/linux/media.h \ + $(srctree)/include/uapi/linux/v4l2-mediabus.h \ + $(srctree)/include/uapi/linux/v4l2-subdev.h) + +ENUM_DEFS = \ + $(shell perl -e 'open IN,"cat @ARGV| cpp -fpreprocessed |"; while (<IN>) { if ($$enum) {print "$$1\n" if (/\s*([A-Z]\S+)\b/); } $$enum = 0 if ($$enum && /^\}/); $$enum = 1 if(/^\s*enum\s/); }; close IN;' \ + $(srctree)/include/uapi/linux/dvb/dmx.h \ + $(srctree)/include/uapi/linux/dvb/frontend.h) STRUCTS = \ $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \ @@ -95,7 +97,7 @@ STRUCTS = \ $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/ca.h) \ $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/dmx.h) \ $(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/frontend.h) \ - $(shell perl -ne 'print "$$1 " if (/^struct\s+([A-Z][^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/net.h) \ + $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/ && !/_old/)' $(srctree)/include/uapi/linux/dvb/net.h) \ $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/video.h) \ $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \ $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \ @@ -179,7 +181,6 @@ DOCUMENTED = \ -e "s/v4l2\-mpeg\-vbi\-ITV0/v4l2-mpeg-vbi-itv0-1/g" DVB_DOCUMENTED = \ - -e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g" \ -e "s,\(struct\s\+\)\([a-z0-9_]\+\)\(\s\+{\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ -e "s,\(}\s\+\)\([a-z0-9_]\+_t\+\),\1\<link linkend=\"\2\">\2\<\/link\>,g" \ -e "s,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+[0-9]\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ @@ -188,14 +189,17 @@ DVB_DOCUMENTED = \ -e "s,\(audio-mixer\|audio-karaoke\|audio-status\|ca-slot-info\|ca-descr-info\|ca-caps\|ca-msg\|ca-descr\|ca-pid\|dmx-filter\|dmx-caps\|video-system\|video-highlight\|video-spu\|video-spu-palette\|video-navi-pack\)-t,\1,g" \ -e "s,DTV-ISDBT-LAYER[A-C],DTV-ISDBT-LAYER,g" \ -e "s,\(define\s\+\)\([A-Z0-9_]\+\)\(\s\+_IO\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ + -e "s,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ -e "s,<link\s\+linkend=\".*\">\(__.*_OLD\)<\/link>,\1,g" \ + -e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g" \ + -e "s,<link\s\+linkend=\".*\">\(DTV_ISDBS_TS_ID_LEGACY\|DTV_MAX_COMMAND\|DTV_IOCTL_MAX_MSGS\)<\/link>,\1,g" \ # # Media targets and dependencies # install_media_images = \ - $(Q)-cp $(OBJIMGFILES) $(MEDIA_SRC_DIR)/v4l/*.svg $(MEDIA_OBJ_DIR)/media_api + $(Q)-cp $(OBJIMGFILES) $(MEDIA_SRC_DIR)/*.svg $(MEDIA_SRC_DIR)/v4l/*.svg $(MEDIA_OBJ_DIR)/media_api $(MEDIA_OBJ_DIR)/%: $(MEDIA_SRC_DIR)/%.b64 $(Q)base64 -d $< >$@ @@ -243,9 +247,14 @@ $(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/uapi/linux/dvb/dmx.h $(MEDIA_OBJ_ @( \ echo "<programlisting>") > $@ @( \ + for ident in $(ENUM_DEFS) ; do \ + entity=`echo $$ident | tr _ -` ; \ + r="$$r s/([^\w\-])$$ident([^\w\-])/\1\&$$entity\;\2/g;";\ + done; \ expand --tabs=8 < $< | \ sed $(ESCAPE) $(DVB_DOCUMENTED) | \ - sed 's/i\.e\./&ie;/') >> $@ + sed 's/i\.e\./&ie;/' | \ + perl -ne "$$r print $$_;") >> $@ @( \ echo "</programlisting>") >> $@ @@ -254,9 +263,14 @@ $(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/uapi/linux/dvb/frontend.h $( @( \ echo "<programlisting>") > $@ @( \ + for ident in $(ENUM_DEFS) ; do \ + entity=`echo $$ident | tr _ -` ; \ + r="$$r s/([^\w\-])$$ident([^\w\-])/\1\&$$entity\;\2/g;";\ + done; \ expand --tabs=8 < $< | \ sed $(ESCAPE) $(DVB_DOCUMENTED) | \ - sed 's/i\.e\./&ie;/') >> $@ + sed 's/i\.e\./&ie;/' | \ + perl -ne "$$r print $$_;") >> $@ @( \ echo "</programlisting>") >> $@ @@ -298,11 +312,22 @@ $(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml @( \ echo -e "\n<!-- Ioctls -->") >>$@ @( \ - for ident in $(IOCTLS) ; do \ + for ident in `echo $(IOCTLS) | sed -e "s,VIDIOC_RESERVED,,"`; do\ entity=`echo $$ident | tr _ -` ; \ - id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml $(MEDIA_OBJ_DIR)/media-ioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \ - echo "<!ENTITY $$entity \"<link" \ + id=`grep -e "<refname>$$ident" -e "<section id=\"$$ident\"" $$(find $(MEDIA_SRC_DIR) -name *.xml -type f)| sed -r s,"^.*/(.*).xml.*","\1",` ; \ + if [ "$$id" != "" ]; then echo "<!ENTITY $$entity \"<link" \ "linkend='$$id'><constant>$$ident</constant></link>\">" \ + >>$@ ; else \ + echo "Warning: undocumented ioctl: $$ident. Please document it at the media DocBook!" >&2; \ + fi; \ + done) + @( \ + echo -e "\n<!-- Defines -->") >>$@ + @( \ + for ident in $(DEFINES) ; do \ + entity=`echo $$ident | tr _ -` ; \ + echo "<!ENTITY $$entity \"<link" \ + "linkend='$$entity'><constant>$$ident</constant></link>\">" \ >>$@ ; \ done) @( \ @@ -322,6 +347,15 @@ $(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml "linkend='$$entity'>$$ident</link>\">" >>$@ ; \ done) @( \ + echo -e "\n<!-- Enum definitions -->") >>$@ + @( \ + for ident in $(ENUM_DEFS) ; do \ + entity=`echo $$ident | tr _ -` ; \ + echo "<!ENTITY $$entity \"<link" \ + "linkend='$$entity'><constant>$$ident</constant></link>\">" \ + >>$@ ; \ + done) + @( \ echo -e "\n<!-- Structures -->") >>$@ @( \ for ident in $(STRUCTS) ; do \ diff --git a/Documentation/DocBook/media/dvb/audio.xml b/Documentation/DocBook/media/dvb/audio.xml index a7ea56c71a27..ea56743ddbe7 100644 --- a/Documentation/DocBook/media/dvb/audio.xml +++ b/Documentation/DocBook/media/dvb/audio.xml @@ -1,7 +1,7 @@ <title>DVB Audio Device</title> <para>The DVB audio device controls the MPEG2 audio decoder of the DVB hardware. It -can be accessed through <emphasis role="tt">/dev/dvb/adapter0/audio0</emphasis>. Data types and and -ioctl definitions can be accessed by including <emphasis role="tt">linux/dvb/audio.h</emphasis> in your +can be accessed through <constant>/dev/dvb/adapter?/audio?</constant>. Data types and and +ioctl definitions can be accessed by including <constant>linux/dvb/audio.h</constant> in your application. </para> <para>Please note that some DVB cards don’t have their own MPEG decoder, which results in @@ -32,7 +32,7 @@ typedef enum { </programlisting> <para>AUDIO_SOURCE_DEMUX selects the demultiplexer (fed either by the frontend or the DVR device) as the source of the video stream. If AUDIO_SOURCE_MEMORY -is selected the stream comes from the application through the <emphasis role="tt">write()</emphasis> system +is selected the stream comes from the application through the <constant>write()</constant> system call. </para> diff --git a/Documentation/DocBook/media/dvb/ca.xml b/Documentation/DocBook/media/dvb/ca.xml index 85eaf4fe2931..d0b07e763908 100644 --- a/Documentation/DocBook/media/dvb/ca.xml +++ b/Documentation/DocBook/media/dvb/ca.xml @@ -1,7 +1,7 @@ <title>DVB CA Device</title> <para>The DVB CA device controls the conditional access hardware. It can be accessed through -<emphasis role="tt">/dev/dvb/adapter0/ca0</emphasis>. Data types and and ioctl definitions can be accessed by -including <emphasis role="tt">linux/dvb/ca.h</emphasis> in your application. +<constant>/dev/dvb/adapter?/ca?</constant>. Data types and and ioctl definitions can be accessed by +including <constant>linux/dvb/ca.h</constant> in your application. </para> <section id="ca_data_types"> diff --git a/Documentation/DocBook/media/dvb/demux.xml b/Documentation/DocBook/media/dvb/demux.xml index c8683d66f059..34f2fb1cd601 100644 --- a/Documentation/DocBook/media/dvb/demux.xml +++ b/Documentation/DocBook/media/dvb/demux.xml @@ -1,33 +1,50 @@ <title>DVB Demux Device</title> <para>The DVB demux device controls the filters of the DVB hardware/software. It can be -accessed through <emphasis role="tt">/dev/adapter0/demux0</emphasis>. Data types and and ioctl definitions can be -accessed by including <emphasis role="tt">linux/dvb/dmx.h</emphasis> in your application. +accessed through <constant>/dev/adapter?/demux?</constant>. Data types and and ioctl definitions can be +accessed by including <constant>linux/dvb/dmx.h</constant> in your application. </para> <section id="dmx_types"> <title>Demux Data Types</title> <section id="dmx-output-t"> -<title>dmx_output_t</title> -<programlisting> -typedef enum -{ - DMX_OUT_DECODER, /⋆ Streaming directly to decoder. ⋆/ - DMX_OUT_TAP, /⋆ Output going to a memory buffer ⋆/ - /⋆ (to be retrieved via the read command).⋆/ - DMX_OUT_TS_TAP, /⋆ Output multiplexed into a new TS ⋆/ - /⋆ (to be retrieved by reading from the ⋆/ - /⋆ logical DVR device). ⋆/ - DMX_OUT_TSDEMUX_TAP /⋆ Like TS_TAP but retrieved from the DMX device ⋆/ -} dmx_output_t; -</programlisting> -<para><emphasis role="tt">DMX_OUT_TAP</emphasis> delivers the stream output to the demux device on which the ioctl is -called. -</para> -<para><emphasis role="tt">DMX_OUT_TS_TAP</emphasis> routes output to the logical DVR device <emphasis role="tt">/dev/dvb/adapter0/dvr0</emphasis>, -which delivers a TS multiplexed from all filters for which <emphasis role="tt">DMX_OUT_TS_TAP</emphasis> was -specified. -</para> +<title>Output for the demux</title> + +<table pgwide="1" frame="none" id="dmx-output"> + <title>enum dmx_output</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="DMX-OUT-DECODER">DMX_OUT_DECODER</entry> + <entry>Streaming directly to decoder.</entry> + </row><row> + <entry align="char" id="DMX-OUT-TAP">DMX_OUT_TAP</entry> + <entry>Output going to a memory buffer (to be retrieved via the + read command). Delivers the stream output to the demux + device on which the ioctl is called.</entry> + </row><row> + <entry align="char" id="DMX-OUT-TS-TAP">DMX_OUT_TS_TAP</entry> + <entry>Output multiplexed into a new TS (to be retrieved by + reading from the logical DVR device). Routes output to the + logical DVR device <constant>/dev/dvb/adapter?/dvr?</constant>, + which delivers a TS multiplexed from all filters for which + <constant>DMX_OUT_TS_TAP</constant> was specified.</entry> + </row><row> + <entry align="char" id="DMX-OUT-TSDEMUX-TAP">DMX_OUT_TSDEMUX_TAP</entry> + <entry>Like &DMX-OUT-TS-TAP; but retrieved from the DMX + device.</entry> + </row> + </tbody> + </tgroup> +</table> + </section> <section id="dmx-input-t"> diff --git a/Documentation/DocBook/media/dvb/dvbapi.xml b/Documentation/DocBook/media/dvb/dvbapi.xml index 4c15396c67e5..858fd7d17104 100644 --- a/Documentation/DocBook/media/dvb/dvbapi.xml +++ b/Documentation/DocBook/media/dvb/dvbapi.xml @@ -28,13 +28,23 @@ <holder>Convergence GmbH</holder> </copyright> <copyright> - <year>2009-2014</year> + <year>2009-2015</year> <holder>Mauro Carvalho Chehab</holder> </copyright> <revhistory> <!-- Put document revisions here, newest first. --> <revision> + <revnumber>2.1.0</revnumber> + <date>2015-05-29</date> + <authorinitials>mcc</authorinitials> + <revremark> + DocBook improvements and cleanups, in order to document the + system calls on a more standard way and provide more description + about the current DVB API. + </revremark> +</revision> +<revision> <revnumber>2.0.4</revnumber> <date>2011-05-06</date> <authorinitials>mcc</authorinitials> @@ -95,18 +105,26 @@ Added ISDB-T test originally written by Patrick Boettcher <chapter id="dvb_demux"> &sub-demux; </chapter> - <chapter id="dvb_video"> - &sub-video; - </chapter> - <chapter id="dvb_audio"> - &sub-audio; - </chapter> <chapter id="dvb_ca"> &sub-ca; </chapter> - <chapter id="dvb_net"> + <chapter id="net"> &sub-net; </chapter> + <chapter id="legacy_dvb_apis"> + <title>DVB Deprecated APIs</title> + <para>The APIs described here are kept only for historical reasons. There's + just one driver for a very legacy hardware that uses this API. No + modern drivers should use it. Instead, audio and video should be using + the V4L2 and ALSA APIs, and the pipelines should be set using the + Media Controller API</para> + <section id="dvb_video"> + &sub-video; + </section> + <section id="dvb_audio"> + &sub-audio; + </section> + </chapter> <chapter id="dvb_kdapi"> &sub-kdapi; </chapter> diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml index 3018564ddfd9..08227d4e9150 100644 --- a/Documentation/DocBook/media/dvb/dvbproperty.xml +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -1,14 +1,88 @@ -<section id="FE_GET_SET_PROPERTY"> -<title><constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></title> -<para>This section describes the DVB version 5 extension of the DVB-API, also -called "S2API", as this API were added to provide support for DVB-S2. It was -designed to be able to replace the old frontend API. Yet, the DISEQC and -the capability ioctls weren't implemented yet via the new way.</para> -<para>The typical usage for the <constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant> -API is to replace the ioctl's were the <link linkend="dvb-frontend-parameters"> -struct <constant>dvb_frontend_parameters</constant></link> were used.</para> +<section id="frontend-properties"> +<title>DVB Frontend properties</title> +<para>Tuning into a Digital TV physical channel and starting decoding it + requires changing a set of parameters, in order to control the + tuner, the demodulator, the Linear Low-noise Amplifier (LNA) and to set the + antenna subsystem via Satellite Equipment Control (SEC), on satellite + systems. The actual parameters are specific to each particular digital + TV standards, and may change as the digital TV specs evolves.</para> +<para>In the past, the strategy used was to have a union with the parameters + needed to tune for DVB-S, DVB-C, DVB-T and ATSC delivery systems grouped + there. The problem is that, as the second generation standards appeared, + those structs were not big enough to contain the additional parameters. + Also, the union didn't have any space left to be expanded without breaking + userspace. So, the decision was to deprecate the legacy union/struct based + approach, in favor of a properties set approach.</para> + +<para>NOTE: on Linux DVB API version 3, setting a frontend were done via + <link linkend="dvb-frontend-parameters">struct <constant>dvb_frontend_parameters</constant></link>. + This got replaced on version 5 (also called "S2API", as this API were + added originally_enabled to provide support for DVB-S2), because the old + API has a very limited support to new standards and new hardware. This + section describes the new and recommended way to set the frontend, with + suppports all digital TV delivery systems.</para> + +<para>Example: with the properties based approach, in order to set the tuner + to a DVB-C channel at 651 kHz, modulated with 256-QAM, FEC 3/4 and symbol + rate of 5.217 Mbauds, those properties should be sent to + <link linkend="FE_GET_PROPERTY"><constant>FE_SET_PROPERTY</constant></link> ioctl:</para> + <itemizedlist> + <listitem><para>&DTV-DELIVERY-SYSTEM; = SYS_DVBC_ANNEX_A</para></listitem> + <listitem><para>&DTV-FREQUENCY; = 651000000</para></listitem> + <listitem><para>&DTV-MODULATION; = QAM_256</para></listitem> + <listitem><para>&DTV-INVERSION; = INVERSION_AUTO</para></listitem> + <listitem><para>&DTV-SYMBOL-RATE; = 5217000</para></listitem> + <listitem><para>&DTV-INNER-FEC; = FEC_3_4</para></listitem> + <listitem><para>&DTV-TUNE;</para></listitem> + </itemizedlist> + +<para>The code that would do the above is:</para> +<programlisting> +#include <stdio.h> +#include <fcntl.h> +#include <sys/ioctl.h> +#include <linux/dvb/frontend.h> + +static struct dtv_property props[] = { + { .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_DVBC_ANNEX_A }, + { .cmd = DTV_FREQUENCY, .u.data = 651000000 }, + { .cmd = DTV_MODULATION, .u.data = QAM_256 }, + { .cmd = DTV_INVERSION, .u.data = INVERSION_AUTO }, + { .cmd = DTV_SYMBOL_RATE, .u.data = 5217000 }, + { .cmd = DTV_INNER_FEC, .u.data = FEC_3_4 }, + { .cmd = DTV_TUNE } +}; + +static struct dtv_properties dtv_prop = { + .num = 6, .props = props +}; + +int main(void) +{ + int fd = open("/dev/dvb/adapter0/frontend0", O_RDWR); + + if (!fd) { + perror ("open"); + return -1; + } + if (ioctl(fd, FE_SET_PROPERTY, &dtv_prop) == -1) { + perror("ioctl"); + return -1; + } + printf("Frontend set\n"); + return 0; +} +</programlisting> + +<para>NOTE: While it is possible to directly call the Kernel code like the + above example, it is strongly recommended to use + <ulink url="http://linuxtv.org/docs/libdvbv5/index.html">libdvbv5</ulink>, + as it provides abstraction to work with the supported digital TV standards + and provides methods for usual operations like program scanning and to + read/write channel descriptor files.</para> + <section id="dtv-stats"> -<title>DTV stats type</title> +<title>struct <structname>dtv_stats</structname></title> <programlisting> struct dtv_stats { __u8 scale; /* enum fecap_scale_params type */ @@ -20,19 +94,19 @@ struct dtv_stats { </programlisting> </section> <section id="dtv-fe-stats"> -<title>DTV stats type</title> +<title>struct <structname>dtv_fe_stats</structname></title> <programlisting> #define MAX_DTV_STATS 4 struct dtv_fe_stats { __u8 len; - struct dtv_stats stat[MAX_DTV_STATS]; + &dtv-stats; stat[MAX_DTV_STATS]; } __packed; </programlisting> </section> <section id="dtv-property"> -<title>DTV property type</title> +<title>struct <structname>dtv_property</structname></title> <programlisting> /* Reserved fields should be set to 0 */ @@ -41,7 +115,7 @@ struct dtv_property { __u32 reserved[3]; union { __u32 data; - struct dtv_fe_stats st; + &dtv-fe-stats; st; struct { __u8 data[32]; __u32 len; @@ -57,115 +131,19 @@ struct dtv_property { </programlisting> </section> <section id="dtv-properties"> -<title>DTV properties type</title> +<title>struct <structname>dtv_properties</structname></title> <programlisting> struct dtv_properties { __u32 num; - struct dtv_property *props; + &dtv-property; *props; }; </programlisting> </section> -<section id="FE_GET_PROPERTY"> -<title>FE_GET_PROPERTY</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns one or more frontend properties. This call only - requires read-only access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>, - dtv_properties ⋆props);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int num</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct dtv_property *props</para> -</entry><entry - align="char"> -<para>Points to the location where the front-end property commands are stored.</para> -</entry> - </row></tbody></tgroup></informaltable> -&return-value-dvb; -<informaltable><tgroup cols="2"><tbody><row> - <entry align="char"><para>EOPNOTSUPP</para></entry> - <entry align="char"><para>Property type not supported.</para></entry> - </row></tbody></tgroup></informaltable> -</section> - -<section id="FE_SET_PROPERTY"> -<title>FE_SET_PROPERTY</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call sets one or more frontend properties. This call - requires read/write access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, - dtv_properties ⋆props);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int num</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct dtv_property *props</para> -</entry><entry - align="char"> -<para>Points to the location where the front-end property commands are stored.</para> -</entry> - </row></tbody></tgroup></informaltable> -&return-value-dvb; -<informaltable><tgroup cols="2"><tbody><row> - <entry align="char"><para>EOPNOTSUPP</para></entry> - <entry align="char"><para>Property type not supported.</para></entry> - </row></tbody></tgroup></informaltable> -</section> - <section> <title>Property types</title> <para> -On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, +On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY and FE_SET_PROPERTY</link>, the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to get/set up to 64 properties. The actual meaning of each property is described on the next sections. </para> @@ -193,7 +171,7 @@ get/set up to 64 properties. The actual meaning of each property is described on <para>Central frequency of the channel.</para> <para>Notes:</para> - <para>1)For satellital delivery systems, it is measured in kHz. + <para>1)For satellite delivery systems, it is measured in kHz. For the other ones, it is measured in Hz.</para> <para>2)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. E.g. a valid frequency could be 474143 kHz. The stepping is bound to the bandwidth of @@ -205,25 +183,78 @@ get/set up to 64 properties. The actual meaning of each property is described on </section> <section id="DTV-MODULATION"> <title><constant>DTV_MODULATION</constant></title> -<para>Specifies the frontend modulation type for cable and satellite types. The modulation can be one of the types bellow:</para> -<programlisting> - typedef enum fe_modulation { - QPSK, - QAM_16, - QAM_32, - QAM_64, - QAM_128, - QAM_256, - QAM_AUTO, - VSB_8, - VSB_16, - PSK_8, - APSK_16, - APSK_32, - DQPSK, - QAM_4_NR, - } fe_modulation_t; -</programlisting> +<para>Specifies the frontend modulation type for delivery systems that supports + more than one modulation type. The modulation can be one of the types + defined by &fe-modulation;.</para> + + +<section id="fe-modulation-t"> +<title>Modulation property</title> + +<para>Most of the digital TV standards currently offers more than one possible + modulation (sometimes called as "constellation" on some standards). This + enum contains the values used by the Kernel. Please note that not all + modulations are supported by a given standard.</para> + +<table pgwide="1" frame="none" id="fe-modulation"> + <title>enum fe_modulation</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="QPSK"><constant>QPSK</constant></entry> + <entry>QPSK modulation</entry> + </row><row> + <entry id="QAM-16"><constant>QAM_16</constant></entry> + <entry>16-QAM modulation</entry> + </row><row> + <entry id="QAM-32"><constant>QAM_32</constant></entry> + <entry>32-QAM modulation</entry> + </row><row> + <entry id="QAM-64"><constant>QAM_64</constant></entry> + <entry>64-QAM modulation</entry> + </row><row> + <entry id="QAM-128"><constant>QAM_128</constant></entry> + <entry>128-QAM modulation</entry> + </row><row> + <entry id="QAM-256"><constant>QAM_256</constant></entry> + <entry>256-QAM modulation</entry> + </row><row> + <entry id="QAM-AUTO"><constant>QAM_AUTO</constant></entry> + <entry>Autodetect QAM modulation</entry> + </row><row> + <entry id="VSB-8"><constant>VSB_8</constant></entry> + <entry>8-VSB modulation</entry> + </row><row> + <entry id="VSB-16"><constant>VSB_16</constant></entry> + <entry>16-VSB modulation</entry> + </row><row> + <entry id="PSK-8"><constant>PSK_8</constant></entry> + <entry>8-PSK modulation</entry> + </row><row> + <entry id="APSK-16"><constant>APSK_16</constant></entry> + <entry>16-APSK modulation</entry> + </row><row> + <entry id="APSK-32"><constant>APSK_32</constant></entry> + <entry>32-APSK modulation</entry> + </row><row> + <entry id="DQPSK"><constant>DQPSK</constant></entry> + <entry>DQPSK modulation</entry> + </row><row> + <entry id="QAM-4-NR"><constant>QAM_4_NR</constant></entry> + <entry>4-QAM-NR modulation</entry> + </row> + </tbody> + </tgroup> +</table> +</section> + </section> <section id="DTV-BANDWIDTH-HZ"> <title><constant>DTV_BANDWIDTH_HZ</constant></title> @@ -253,19 +284,45 @@ get/set up to 64 properties. The actual meaning of each property is described on </section> <section id="DTV-INVERSION"> <title><constant>DTV_INVERSION</constant></title> - <para>The Inversion field can take one of these values: - </para> - <programlisting> - typedef enum fe_spectral_inversion { - INVERSION_OFF, - INVERSION_ON, - INVERSION_AUTO - } fe_spectral_inversion_t; - </programlisting> - <para>It indicates if spectral inversion should be presumed or not. In the automatic setting - (<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by - itself. - </para> + + <para>Specifies if the frontend should do spectral inversion or not.</para> + +<section id="fe-spectral-inversion-t"> +<title>enum fe_modulation: Frontend spectral inversion</title> + +<para>This parameter indicates if spectral inversion should be presumed or not. + In the automatic setting (<constant>INVERSION_AUTO</constant>) the hardware + will try to figure out the correct setting by itself. If the hardware + doesn't support, the DVB core will try to lock at the carrier first with + inversion off. If it fails, it will try to enable inversion. +</para> + +<table pgwide="1" frame="none" id="fe-spectral-inversion"> + <title>enum fe_modulation</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="INVERSION-OFF"><constant>INVERSION_OFF</constant></entry> + <entry>Don't do spectral band inversion.</entry> + </row><row> + <entry id="INVERSION-ON"><constant>INVERSION_ON</constant></entry> + <entry>Do spectral band inversion.</entry> + </row><row> + <entry id="INVERSION-AUTO"><constant>INVERSION_AUTO</constant></entry> + <entry>Autodetect spectral band inversion.</entry> + </row> + </tbody> + </tgroup> +</table> +</section> + </section> <section id="DTV-DISEQC-MASTER"> <title><constant>DTV_DISEQC_MASTER</constant></title> @@ -279,25 +336,64 @@ get/set up to 64 properties. The actual meaning of each property is described on <title><constant>DTV_INNER_FEC</constant></title> <para>Used cable/satellite transmissions. The acceptable values are: </para> - <programlisting> -typedef enum fe_code_rate { - FEC_NONE = 0, - FEC_1_2, - FEC_2_3, - FEC_3_4, - FEC_4_5, - FEC_5_6, - FEC_6_7, - FEC_7_8, - FEC_8_9, - FEC_AUTO, - FEC_3_5, - FEC_9_10, - FEC_2_5, -} fe_code_rate_t; - </programlisting> - <para>which correspond to error correction rates of 1/2, 2/3, etc., - no error correction or auto detection.</para> +<section id="fe-code-rate-t"> +<title>enum fe_code_rate: type of the Forward Error Correction.</title> + +<table pgwide="1" frame="none" id="fe-code-rate"> + <title>enum fe_code_rate</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="FEC-NONE"><constant>FEC_NONE</constant></entry> + <entry>No Forward Error Correction Code</entry> + </row><row> + <entry id="FEC-AUTO"><constant>FEC_AUTO</constant></entry> + <entry>Autodetect Error Correction Code</entry> + </row><row> + <entry id="FEC-1-2"><constant>FEC_1_2</constant></entry> + <entry>Forward Error Correction Code 1/2</entry> + </row><row> + <entry id="FEC-2-3"><constant>FEC_2_3</constant></entry> + <entry>Forward Error Correction Code 2/3</entry> + </row><row> + <entry id="FEC-3-4"><constant>FEC_3_4</constant></entry> + <entry>Forward Error Correction Code 3/4</entry> + </row><row> + <entry id="FEC-4-5"><constant>FEC_4_5</constant></entry> + <entry>Forward Error Correction Code 4/5</entry> + </row><row> + <entry id="FEC-5-6"><constant>FEC_5_6</constant></entry> + <entry>Forward Error Correction Code 5/6</entry> + </row><row> + <entry id="FEC-6-7"><constant>FEC_6_7</constant></entry> + <entry>Forward Error Correction Code 6/7</entry> + </row><row> + <entry id="FEC-7-8"><constant>FEC_7_8</constant></entry> + <entry>Forward Error Correction Code 7/8</entry> + </row><row> + <entry id="FEC-8-9"><constant>FEC_8_9</constant></entry> + <entry>Forward Error Correction Code 8/9</entry> + </row><row> + <entry id="FEC-9-10"><constant>FEC_9_10</constant></entry> + <entry>Forward Error Correction Code 9/10</entry> + </row><row> + <entry id="FEC-2-5"><constant>FEC_2_5</constant></entry> + <entry>Forward Error Correction Code 2/5</entry> + </row><row> + <entry id="FEC-3-5"><constant>FEC_3_5</constant></entry> + <entry>Forward Error Correction Code 3/5</entry> + </row> + </tbody> + </tgroup> +</table> +</section> </section> <section id="DTV-VOLTAGE"> <title><constant>DTV_VOLTAGE</constant></title> @@ -305,12 +401,31 @@ typedef enum fe_code_rate { the polarzation (horizontal/vertical). When using DiSEqC epuipment this voltage has to be switched consistently to the DiSEqC commands as described in the DiSEqC spec.</para> - <programlisting> - typedef enum fe_sec_voltage { - SEC_VOLTAGE_13, - SEC_VOLTAGE_18 - } fe_sec_voltage_t; - </programlisting> + +<table pgwide="1" frame="none" id="fe-sec-voltage"> + <title id="fe-sec-voltage-t">enum fe_sec_voltage</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="SEC-VOLTAGE-13"><constant>SEC_VOLTAGE_13</constant></entry> + <entry align="char">Set DC voltage level to 13V</entry> + </row><row> + <entry align="char" id="SEC-VOLTAGE-18"><constant>SEC_VOLTAGE_18</constant></entry> + <entry align="char">Set DC voltage level to 18V</entry> + </row><row> + <entry align="char" id="SEC-VOLTAGE-OFF"><constant>SEC_VOLTAGE_OFF</constant></entry> + <entry align="char">Don't send any voltage to the antenna</entry> + </row> + </tbody> + </tgroup> +</table> </section> <section id="DTV-TONE"> <title><constant>DTV_TONE</constant></title> @@ -321,13 +436,30 @@ typedef enum fe_code_rate { <para>Sets DVB-S2 pilot</para> <section id="fe-pilot-t"> <title>fe_pilot type</title> - <programlisting> -typedef enum fe_pilot { - PILOT_ON, - PILOT_OFF, - PILOT_AUTO, -} fe_pilot_t; - </programlisting> +<table pgwide="1" frame="none" id="fe-pilot"> + <title>enum fe_pilot</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="PILOT-ON"><constant>PILOT_ON</constant></entry> + <entry align="char">Pilot tones enabled</entry> + </row><row> + <entry align="char" id="PILOT-OFF"><constant>PILOT_OFF</constant></entry> + <entry align="char">Pilot tones disabled</entry> + </row><row> + <entry align="char" id="PILOT-AUTO"><constant>PILOT_AUTO</constant></entry> + <entry align="char">Autodetect pilot tones</entry> + </row> + </tbody> + </tgroup> +</table> </section> </section> <section id="DTV-ROLLOFF"> @@ -336,14 +468,33 @@ typedef enum fe_pilot { <section id="fe-rolloff-t"> <title>fe_rolloff type</title> - <programlisting> -typedef enum fe_rolloff { - ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */ - ROLLOFF_20, - ROLLOFF_25, - ROLLOFF_AUTO, -} fe_rolloff_t; - </programlisting> +<table pgwide="1" frame="none" id="fe-rolloff"> + <title>enum fe_rolloff</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="ROLLOFF-35"><constant>ROLLOFF_35</constant></entry> + <entry align="char">Roloff factor: α=35%</entry> + </row><row> + <entry align="char" id="ROLLOFF-20"><constant>ROLLOFF_20</constant></entry> + <entry align="char">Roloff factor: α=20%</entry> + </row><row> + <entry align="char" id="ROLLOFF-25"><constant>ROLLOFF_25</constant></entry> + <entry align="char">Roloff factor: α=25%</entry> + </row><row> + <entry align="char" id="ROLLOFF-AUTO"><constant>ROLLOFF_AUTO</constant></entry> + <entry align="char">Auto-detect the roloff factor.</entry> + </row> + </tbody> + </tgroup> +</table> </section> </section> <section id="DTV-DISEQC-SLAVE-REPLY"> @@ -364,31 +515,82 @@ typedef enum fe_rolloff { <section id="fe-delivery-system-t"> <title>fe_delivery_system type</title> <para>Possible values: </para> -<programlisting> -typedef enum fe_delivery_system { - SYS_UNDEFINED, - SYS_DVBC_ANNEX_A, - SYS_DVBC_ANNEX_B, - SYS_DVBT, - SYS_DSS, - SYS_DVBS, - SYS_DVBS2, - SYS_DVBH, - SYS_ISDBT, - SYS_ISDBS, - SYS_ISDBC, - SYS_ATSC, - SYS_ATSCMH, - SYS_DTMB, - SYS_CMMB, - SYS_DAB, - SYS_DVBT2, - SYS_TURBO, - SYS_DVBC_ANNEX_C, -} fe_delivery_system_t; -</programlisting> - </section> +<table pgwide="1" frame="none" id="fe-delivery-system"> + <title>enum fe_delivery_system</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="SYS-UNDEFINED"><constant>SYS_UNDEFINED</constant></entry> + <entry>Undefined standard. Generally, indicates an error</entry> + </row><row> + <entry id="SYS-DVBC-ANNEX-A"><constant>SYS_DVBC_ANNEX_A</constant></entry> + <entry>Cable TV: DVB-C following ITU-T J.83 Annex A spec</entry> + </row><row> + <entry id="SYS-DVBC-ANNEX-B"><constant>SYS_DVBC_ANNEX_B</constant></entry> + <entry>Cable TV: DVB-C following ITU-T J.83 Annex B spec (ClearQAM)</entry> + </row><row> + <entry id="SYS-DVBC-ANNEX-C"><constant>SYS_DVBC_ANNEX_C</constant></entry> + <entry>Cable TV: DVB-C following ITU-T J.83 Annex C spec</entry> + </row><row> + <entry id="SYS-ISDBC"><constant>SYS_ISDBC</constant></entry> + <entry>Cable TV: ISDB-C (no drivers yet)</entry> + </row><row> + <entry id="SYS-DVBT"><constant>SYS_DVBT</constant></entry> + <entry>Terrestral TV: DVB-T</entry> + </row><row> + <entry id="SYS-DVBT2"><constant>SYS_DVBT2</constant></entry> + <entry>Terrestral TV: DVB-T2</entry> + </row><row> + <entry id="SYS-ISDBT"><constant>SYS_ISDBT</constant></entry> + <entry>Terrestral TV: ISDB-T</entry> + </row><row> + <entry id="SYS-ATSC"><constant>SYS_ATSC</constant></entry> + <entry>Terrestral TV: ATSC</entry> + </row><row> + <entry id="SYS-ATSCMH"><constant>SYS_ATSCMH</constant></entry> + <entry>Terrestral TV (mobile): ATSC-M/H</entry> + </row><row> + <entry id="SYS-DTMB"><constant>SYS_DTMB</constant></entry> + <entry>Terrestrial TV: DTMB</entry> + </row><row> + <entry id="SYS-DVBS"><constant>SYS_DVBS</constant></entry> + <entry>Satellite TV: DVB-S</entry> + </row><row> + <entry id="SYS-DVBS2"><constant>SYS_DVBS2</constant></entry> + <entry>Satellite TV: DVB-S2</entry> + </row><row> + <entry id="SYS-TURBO"><constant>SYS_TURBO</constant></entry> + <entry>Satellite TV: DVB-S Turbo</entry> + </row><row> + <entry id="SYS-ISDBS"><constant>SYS_ISDBS</constant></entry> + <entry>Satellite TV: ISDB-S</entry> + </row><row> + <entry id="SYS-DAB"><constant>SYS_DAB</constant></entry> + <entry>Digital audio: DAB (not fully supported)</entry> + </row><row> + <entry id="SYS-DSS"><constant>SYS_DSS</constant></entry> + <entry>Satellite TV:"DSS (not fully supported)</entry> + </row><row> + <entry id="SYS-CMMB"><constant>SYS_CMMB</constant></entry> + <entry>Terrestral TV (mobile):CMMB (not fully supported)</entry> + </row><row> + <entry id="SYS-DVBH"><constant>SYS_DVBH</constant></entry> + <entry>Terrestral TV (mobile): DVB-H (standard deprecated)</entry> + </row> + </tbody> + </tgroup> +</table> + + +</section> </section> <section id="DTV-ISDBT-PARTIAL-RECEPTION"> <title><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></title> @@ -630,114 +832,177 @@ typedef enum fe_delivery_system { </section> <section id="DTV-ATSCMH-RS-FRAME-MODE"> <title><constant>DTV_ATSCMH_RS_FRAME_MODE</constant></title> - <para>RS frame mode.</para> + <para>Reed Solomon (RS) frame mode.</para> <para>Possible values are:</para> - <para id="atscmh-rs-frame-mode"> -<programlisting> -typedef enum atscmh_rs_frame_mode { - ATSCMH_RSFRAME_PRI_ONLY = 0, - ATSCMH_RSFRAME_PRI_SEC = 1, -} atscmh_rs_frame_mode_t; -</programlisting> - </para> +<table pgwide="1" frame="none" id="atscmh-rs-frame-mode"> + <title>enum atscmh_rs_frame_mode</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="ATSCMH-RSFRAME-PRI-ONLY"><constant>ATSCMH_RSFRAME_PRI_ONLY</constant></entry> + <entry>Single Frame: There is only a primary RS Frame for all + Group Regions.</entry> + </row><row> + <entry id="ATSCMH-RSFRAME-PRI-SEC"><constant>ATSCMH_RSFRAME_PRI_SEC</constant></entry> + <entry>Dual Frame: There are two separate RS Frames: Primary RS + Frame for Group Region A and B and Secondary RS Frame for Group + Region C and D.</entry> + </row> + </tbody> + </tgroup> +</table> </section> <section id="DTV-ATSCMH-RS-FRAME-ENSEMBLE"> <title><constant>DTV_ATSCMH_RS_FRAME_ENSEMBLE</constant></title> - <para>RS frame ensemble.</para> + <para>Reed Solomon(RS) frame ensemble.</para> <para>Possible values are:</para> - <para id="atscmh-rs-frame-ensemble"> -<programlisting> -typedef enum atscmh_rs_frame_ensemble { - ATSCMH_RSFRAME_ENS_PRI = 0, - ATSCMH_RSFRAME_ENS_SEC = 1, -} atscmh_rs_frame_ensemble_t; -</programlisting> - </para> +<table pgwide="1" frame="none" id="atscmh-rs-frame-ensemble"> + <title>enum atscmh_rs_frame_ensemble</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="ATSCMH-RSFRAME-ENS-PRI"><constant>ATSCMH_RSFRAME_ENS_PRI</constant></entry> + <entry>Primary Ensemble.</entry> + </row><row> + <entry id="ATSCMH-RSFRAME-ENS-SEC"><constant>AATSCMH_RSFRAME_PRI_SEC</constant></entry> + <entry>Secondary Ensemble.</entry> + </row><row> + <entry id="ATSCMH-RSFRAME-RES"><constant>AATSCMH_RSFRAME_RES</constant></entry> + <entry>Reserved. Shouldn't be used.</entry> + </row> + </tbody> + </tgroup> +</table> </section> <section id="DTV-ATSCMH-RS-CODE-MODE-PRI"> <title><constant>DTV_ATSCMH_RS_CODE_MODE_PRI</constant></title> - <para>RS code mode (primary).</para> + <para>Reed Solomon (RS) code mode (primary).</para> <para>Possible values are:</para> - <para id="atscmh-rs-code-mode"> -<programlisting> -typedef enum atscmh_rs_code_mode { - ATSCMH_RSCODE_211_187 = 0, - ATSCMH_RSCODE_223_187 = 1, - ATSCMH_RSCODE_235_187 = 2, -} atscmh_rs_code_mode_t; -</programlisting> - </para> +<table pgwide="1" frame="none" id="atscmh-rs-code-mode"> + <title>enum atscmh_rs_code_mode</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="ATSCMH-RSCODE-211-187"><constant>ATSCMH_RSCODE_211_187</constant></entry> + <entry>Reed Solomon code (211,187).</entry> + </row><row> + <entry id="ATSCMH-RSCODE-223-187"><constant>ATSCMH_RSCODE_223_187</constant></entry> + <entry>Reed Solomon code (223,187).</entry> + </row><row> + <entry id="ATSCMH-RSCODE-235-187"><constant>ATSCMH_RSCODE_235_187</constant></entry> + <entry>Reed Solomon code (235,187).</entry> + </row><row> + <entry id="ATSCMH-RSCODE-RES"><constant>ATSCMH_RSCODE_RES</constant></entry> + <entry>Reserved. Shouldn't be used.</entry> + </row> + </tbody> + </tgroup> +</table> </section> <section id="DTV-ATSCMH-RS-CODE-MODE-SEC"> <title><constant>DTV_ATSCMH_RS_CODE_MODE_SEC</constant></title> - <para>RS code mode (secondary).</para> - <para>Possible values are:</para> -<programlisting> -typedef enum atscmh_rs_code_mode { - ATSCMH_RSCODE_211_187 = 0, - ATSCMH_RSCODE_223_187 = 1, - ATSCMH_RSCODE_235_187 = 2, -} atscmh_rs_code_mode_t; -</programlisting> + <para>Reed Solomon (RS) code mode (secondary).</para> + <para>Possible values are the same as documented on + &atscmh-rs-code-mode;:</para> </section> <section id="DTV-ATSCMH-SCCC-BLOCK-MODE"> <title><constant>DTV_ATSCMH_SCCC_BLOCK_MODE</constant></title> <para>Series Concatenated Convolutional Code Block Mode.</para> <para>Possible values are:</para> - <para id="atscmh-sccc-block-mode"> -<programlisting> -typedef enum atscmh_sccc_block_mode { - ATSCMH_SCCC_BLK_SEP = 0, - ATSCMH_SCCC_BLK_COMB = 1, -} atscmh_sccc_block_mode_t; -</programlisting> - </para> +<table pgwide="1" frame="none" id="atscmh-sccc-block-mode"> + <title>enum atscmh_scc_block_mode</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="ATSCMH-SCCC-BLK-SEP"><constant>ATSCMH_SCCC_BLK_SEP</constant></entry> + <entry>Separate SCCC: the SCCC outer code mode shall be set independently + for each Group Region (A, B, C, D)</entry> + </row><row> + <entry id="ATSCMH-SCCC-BLK-COMB"><constant>ATSCMH_SCCC_BLK_COMB</constant></entry> + <entry>Combined SCCC: all four Regions shall have the same SCCC outer + code mode.</entry> + </row><row> + <entry id="ATSCMH-SCCC-BLK-RES"><constant>ATSCMH_SCCC_BLK_RES</constant></entry> + <entry>Reserved. Shouldn't be used.</entry> + </row> + </tbody> + </tgroup> +</table> </section> <section id="DTV-ATSCMH-SCCC-CODE-MODE-A"> <title><constant>DTV_ATSCMH_SCCC_CODE_MODE_A</constant></title> <para>Series Concatenated Convolutional Code Rate.</para> <para>Possible values are:</para> - <para id="atscmh-sccc-code-mode"> -<programlisting> -typedef enum atscmh_sccc_code_mode { - ATSCMH_SCCC_CODE_HLF = 0, - ATSCMH_SCCC_CODE_QTR = 1, -} atscmh_sccc_code_mode_t; -</programlisting> - </para> +<table pgwide="1" frame="none" id="atscmh-sccc-code-mode"> + <title>enum atscmh_sccc_code_mode</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="ATSCMH-SCCC-CODE-HLF"><constant>ATSCMH_SCCC_CODE_HLF</constant></entry> + <entry>The outer code rate of a SCCC Block is 1/2 rate.</entry> + </row><row> + <entry id="ATSCMH-SCCC-CODE-QTR"><constant>ATSCMH_SCCC_CODE_QTR</constant></entry> + <entry>The outer code rate of a SCCC Block is 1/4 rate.</entry> + </row><row> + <entry id="ATSCMH-SCCC-CODE-RES"><constant>ATSCMH_SCCC_CODE_RES</constant></entry> + <entry>to be documented.</entry> + </row> + </tbody> + </tgroup> +</table> </section> <section id="DTV-ATSCMH-SCCC-CODE-MODE-B"> <title><constant>DTV_ATSCMH_SCCC_CODE_MODE_B</constant></title> <para>Series Concatenated Convolutional Code Rate.</para> - <para>Possible values are:</para> -<programlisting> -typedef enum atscmh_sccc_code_mode { - ATSCMH_SCCC_CODE_HLF = 0, - ATSCMH_SCCC_CODE_QTR = 1, -} atscmh_sccc_code_mode_t; -</programlisting> + <para>Possible values are the same as documented on + &atscmh-sccc-code-mode;.</para> </section> <section id="DTV-ATSCMH-SCCC-CODE-MODE-C"> <title><constant>DTV_ATSCMH_SCCC_CODE_MODE_C</constant></title> <para>Series Concatenated Convolutional Code Rate.</para> - <para>Possible values are:</para> -<programlisting> -typedef enum atscmh_sccc_code_mode { - ATSCMH_SCCC_CODE_HLF = 0, - ATSCMH_SCCC_CODE_QTR = 1, -} atscmh_sccc_code_mode_t; -</programlisting> + <para>Possible values are the same as documented on + &atscmh-sccc-code-mode;.</para> </section> <section id="DTV-ATSCMH-SCCC-CODE-MODE-D"> <title><constant>DTV_ATSCMH_SCCC_CODE_MODE_D</constant></title> <para>Series Concatenated Convolutional Code Rate.</para> - <para>Possible values are:</para> -<programlisting> -typedef enum atscmh_sccc_code_mode { - ATSCMH_SCCC_CODE_HLF = 0, - ATSCMH_SCCC_CODE_QTR = 1, -} atscmh_sccc_code_mode_t; -</programlisting> + <para>Possible values are the same as documented on + &atscmh-sccc-code-mode;.</para> </section> </section> <section id="DTV-API-VERSION"> @@ -746,65 +1011,74 @@ typedef enum atscmh_sccc_code_mode { </section> <section id="DTV-CODE-RATE-HP"> <title><constant>DTV_CODE_RATE_HP</constant></title> - <para>Used on terrestrial transmissions. The acceptable values are: + <para>Used on terrestrial transmissions. The acceptable values are + the ones described at &fe-transmit-mode-t;. </para> - <programlisting> -typedef enum fe_code_rate { - FEC_NONE = 0, - FEC_1_2, - FEC_2_3, - FEC_3_4, - FEC_4_5, - FEC_5_6, - FEC_6_7, - FEC_7_8, - FEC_8_9, - FEC_AUTO, - FEC_3_5, - FEC_9_10, -} fe_code_rate_t; - </programlisting> </section> <section id="DTV-CODE-RATE-LP"> <title><constant>DTV_CODE_RATE_LP</constant></title> - <para>Used on terrestrial transmissions. The acceptable values are: + <para>Used on terrestrial transmissions. The acceptable values are + the ones described at &fe-transmit-mode-t;. </para> - <programlisting> -typedef enum fe_code_rate { - FEC_NONE = 0, - FEC_1_2, - FEC_2_3, - FEC_3_4, - FEC_4_5, - FEC_5_6, - FEC_6_7, - FEC_7_8, - FEC_8_9, - FEC_AUTO, - FEC_3_5, - FEC_9_10, -} fe_code_rate_t; - </programlisting> + </section> + <section id="DTV-GUARD-INTERVAL"> <title><constant>DTV_GUARD_INTERVAL</constant></title> <para>Possible values are:</para> -<programlisting> -typedef enum fe_guard_interval { - GUARD_INTERVAL_1_32, - GUARD_INTERVAL_1_16, - GUARD_INTERVAL_1_8, - GUARD_INTERVAL_1_4, - GUARD_INTERVAL_AUTO, - GUARD_INTERVAL_1_128, - GUARD_INTERVAL_19_128, - GUARD_INTERVAL_19_256, - GUARD_INTERVAL_PN420, - GUARD_INTERVAL_PN595, - GUARD_INTERVAL_PN945, -} fe_guard_interval_t; -</programlisting> + +<section id="fe-guard-interval-t"> +<title>Modulation guard interval</title> + +<table pgwide="1" frame="none" id="fe-guard-interval"> + <title>enum fe_guard_interval</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="GUARD-INTERVAL-AUTO"><constant>GUARD_INTERVAL_AUTO</constant></entry> + <entry>Autodetect the guard interval</entry> + </row><row> + <entry id="GUARD-INTERVAL-1-128"><constant>GUARD_INTERVAL_1_128</constant></entry> + <entry>Guard interval 1/128</entry> + </row><row> + <entry id="GUARD-INTERVAL-1-32"><constant>GUARD_INTERVAL_1_32</constant></entry> + <entry>Guard interval 1/32</entry> + </row><row> + <entry id="GUARD-INTERVAL-1-16"><constant>GUARD_INTERVAL_1_16</constant></entry> + <entry>Guard interval 1/16</entry> + </row><row> + <entry id="GUARD-INTERVAL-1-8"><constant>GUARD_INTERVAL_1_8</constant></entry> + <entry>Guard interval 1/8</entry> + </row><row> + <entry id="GUARD-INTERVAL-1-4"><constant>GUARD_INTERVAL_1_4</constant></entry> + <entry>Guard interval 1/4</entry> + </row><row> + <entry id="GUARD-INTERVAL-19-128"><constant>GUARD_INTERVAL_19_128</constant></entry> + <entry>Guard interval 19/128</entry> + </row><row> + <entry id="GUARD-INTERVAL-19-256"><constant>GUARD_INTERVAL_19_256</constant></entry> + <entry>Guard interval 19/256</entry> + </row><row> + <entry id="GUARD-INTERVAL-PN420"><constant>GUARD_INTERVAL_PN420</constant></entry> + <entry>PN length 420 (1/4)</entry> + </row><row> + <entry id="GUARD-INTERVAL-PN595"><constant>GUARD_INTERVAL_PN595</constant></entry> + <entry>PN length 595 (1/6)</entry> + </row><row> + <entry id="GUARD-INTERVAL-PN945"><constant>GUARD_INTERVAL_PN945</constant></entry> + <entry>PN length 945 (1/9)</entry> + </row> + </tbody> + </tgroup> +</table> <para>Notes:</para> <para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will @@ -812,26 +1086,64 @@ typedef enum fe_guard_interval { in the missing parameters.</para> <para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para> <para>3) DTMB specifies PN420, PN595 and PN945.</para> +</section> </section> <section id="DTV-TRANSMISSION-MODE"> <title><constant>DTV_TRANSMISSION_MODE</constant></title> - <para>Specifies the number of carriers used by the standard</para> + <para>Specifies the number of carriers used by the standard. + This is used only on OFTM-based standards, e. g. + DVB-T/T2, ISDB-T, DTMB</para> + +<section id="fe-transmit-mode-t"> +<title>enum fe_transmit_mode: Number of carriers per channel</title> + +<table pgwide="1" frame="none" id="fe-transmit-mode"> + <title>enum fe_transmit_mode</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="TRANSMISSION-MODE-AUTO"><constant>TRANSMISSION_MODE_AUTO</constant></entry> + <entry>Autodetect transmission mode. The hardware will try to find + the correct FFT-size (if capable) to fill in the missing + parameters.</entry> + </row><row> + <entry id="TRANSMISSION-MODE-1K"><constant>TRANSMISSION_MODE_1K</constant></entry> + <entry>Transmission mode 1K</entry> + </row><row> + <entry id="TRANSMISSION-MODE-2K"><constant>TRANSMISSION_MODE_2K</constant></entry> + <entry>Transmission mode 2K</entry> + </row><row> + <entry id="TRANSMISSION-MODE-8K"><constant>TRANSMISSION_MODE_8K</constant></entry> + <entry>Transmission mode 8K</entry> + </row><row> + <entry id="TRANSMISSION-MODE-4K"><constant>TRANSMISSION_MODE_4K</constant></entry> + <entry>Transmission mode 4K</entry> + </row><row> + <entry id="TRANSMISSION-MODE-16K"><constant>TRANSMISSION_MODE_16K</constant></entry> + <entry>Transmission mode 16K</entry> + </row><row> + <entry id="TRANSMISSION-MODE-32K"><constant>TRANSMISSION_MODE_32K</constant></entry> + <entry>Transmission mode 32K</entry> + </row><row> + <entry id="TRANSMISSION-MODE-C1"><constant>TRANSMISSION_MODE_C1</constant></entry> + <entry>Single Carrier (C=1) transmission mode (DTMB)</entry> + </row><row> + <entry id="TRANSMISSION-MODE-C3780"><constant>TRANSMISSION_MODE_C3780</constant></entry> + <entry>Multi Carrier (C=3780) transmission mode (DTMB)</entry> + </row> + </tbody> + </tgroup> +</table> + - <para>Possible values are:</para> -<programlisting> -typedef enum fe_transmit_mode { - TRANSMISSION_MODE_2K, - TRANSMISSION_MODE_8K, - TRANSMISSION_MODE_AUTO, - TRANSMISSION_MODE_4K, - TRANSMISSION_MODE_1K, - TRANSMISSION_MODE_16K, - TRANSMISSION_MODE_32K, - TRANSMISSION_MODE_C1, - TRANSMISSION_MODE_C3780, -} fe_transmit_mode_t; -</programlisting> <para>Notes:</para> <para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called 'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para> @@ -842,19 +1154,48 @@ typedef enum fe_transmit_mode { <para>3) DVB-T specifies 2K and 8K as valid sizes.</para> <para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para> <para>5) DTMB specifies C1 and C3780.</para> +</section> </section> <section id="DTV-HIERARCHY"> <title><constant>DTV_HIERARCHY</constant></title> <para>Frontend hierarchy</para> - <programlisting> -typedef enum fe_hierarchy { - HIERARCHY_NONE, - HIERARCHY_1, - HIERARCHY_2, - HIERARCHY_4, - HIERARCHY_AUTO - } fe_hierarchy_t; - </programlisting> + + +<section id="fe-hierarchy-t"> +<title>Frontend hierarchy</title> + +<table pgwide="1" frame="none" id="fe-hierarchy"> + <title>enum fe_hierarchy</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="HIERARCHY-NONE"><constant>HIERARCHY_NONE</constant></entry> + <entry>No hierarchy</entry> + </row><row> + <entry id="HIERARCHY-AUTO"><constant>HIERARCHY_AUTO</constant></entry> + <entry>Autodetect hierarchy (if supported)</entry> + </row><row> + <entry id="HIERARCHY-1"><constant>HIERARCHY_1</constant></entry> + <entry>Hierarchy 1</entry> + </row><row> + <entry id="HIERARCHY-2"><constant>HIERARCHY_2</constant></entry> + <entry>Hierarchy 2</entry> + </row><row> + <entry id="HIERARCHY-4"><constant>HIERARCHY_4</constant></entry> + <entry>Hierarchy 4</entry> + </row> + </tbody> + </tgroup> +</table> +</section> + </section> <section id="DTV-STREAM-ID"> <title><constant>DTV_STREAM_ID</constant></title> @@ -891,15 +1232,37 @@ typedef enum fe_hierarchy { </section> <section id="DTV-INTERLEAVING"> <title><constant>DTV_INTERLEAVING</constant></title> - <para id="fe-interleaving">Interleaving mode</para> - <programlisting> -enum fe_interleaving { - INTERLEAVING_NONE, - INTERLEAVING_AUTO, - INTERLEAVING_240, - INTERLEAVING_720, -}; - </programlisting> + +<para>Time interleaving to be used. Currently, used only on DTMB.</para> + +<table pgwide="1" frame="none" id="fe-interleaving"> + <title>enum fe_interleaving</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="INTERLEAVING-NONE"><constant>INTERLEAVING_NONE</constant></entry> + <entry>No interleaving.</entry> + </row><row> + <entry id="INTERLEAVING-AUTO"><constant>INTERLEAVING_AUTO</constant></entry> + <entry>Auto-detect interleaving.</entry> + </row><row> + <entry id="INTERLEAVING-240"><constant>INTERLEAVING_240</constant></entry> + <entry>Interleaving of 240 symbols.</entry> + </row><row> + <entry id="INTERLEAVING-720"><constant>INTERLEAVING_720</constant></entry> + <entry>Interleaving of 720 symbols.</entry> + </row> + </tbody> + </tgroup> +</table> + </section> <section id="DTV-LNA"> <title><constant>DTV_LNA</constant></title> @@ -921,7 +1284,7 @@ enum fe_interleaving { <para>For most delivery systems, <constant>dtv_property.stat.len</constant> will be 1 if the stats is supported, and the properties will return a single value for each parameter.</para> - <para>It should be noticed, however, that new OFDM delivery systems + <para>It should be noted, however, that new OFDM delivery systems like ISDB can use different modulation types for each group of carriers. On such standards, up to 3 groups of statistics can be provided, and <constant>dtv_property.stat.len</constant> is updated @@ -940,10 +1303,10 @@ enum fe_interleaving { and <constant>uvalue</constant> is for unsigned values (counters, relative scale)</para></listitem> <listitem><para><constant>scale</constant> - Scale for the value. It can be:</para> <itemizedlist mark='bullet' id="fecap-scale-params"> - <listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - The parameter is supported by the frontend, but it was not possible to collect it (could be a transitory or permanent condition)</para></listitem> - <listitem><para><constant>FE_SCALE_DECIBEL</constant> - parameter is a signed value, measured in 1/1000 dB</para></listitem> - <listitem><para><constant>FE_SCALE_RELATIVE</constant> - parameter is a unsigned value, where 0 means 0% and 65535 means 100%.</para></listitem> - <listitem><para><constant>FE_SCALE_COUNTER</constant> - parameter is a unsigned value that counts the occurrence of an event, like bit error, block error, or lapsed time.</para></listitem> + <listitem id="FE-SCALE-NOT-AVAILABLE"><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - The parameter is supported by the frontend, but it was not possible to collect it (could be a transitory or permanent condition)</para></listitem> + <listitem id="FE-SCALE-DECIBEL"><para><constant>FE_SCALE_DECIBEL</constant> - parameter is a signed value, measured in 1/1000 dB</para></listitem> + <listitem id="FE-SCALE-RELATIVE"><para><constant>FE_SCALE_RELATIVE</constant> - parameter is a unsigned value, where 0 means 0% and 65535 means 100%.</para></listitem> + <listitem id="FE-SCALE-COUNTER"><para><constant>FE_SCALE_COUNTER</constant> - parameter is a unsigned value that counts the occurrence of an event, like bit error, block error, or lapsed time.</para></listitem> </itemizedlist> </listitem> </itemizedlist> @@ -953,7 +1316,7 @@ enum fe_interleaving { <para>Possible scales for this metric are:</para> <itemizedlist mark='bullet'> <listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem> - <listitem><para><constant>FE_SCALE_DECIBEL</constant> - signal strength is in 0.0001 dBm units, power measured in miliwatts. This value is generally negative.</para></listitem> + <listitem><para><constant>FE_SCALE_DECIBEL</constant> - signal strength is in 0.001 dBm units, power measured in miliwatts. This value is generally negative.</para></listitem> <listitem><para><constant>FE_SCALE_RELATIVE</constant> - The frontend provides a 0% to 100% measurement for power (actually, 0 to 65535).</para></listitem> </itemizedlist> </section> @@ -963,7 +1326,7 @@ enum fe_interleaving { <para>Possible scales for this metric are:</para> <itemizedlist mark='bullet'> <listitem><para><constant>FE_SCALE_NOT_AVAILABLE</constant> - it failed to measure it, or the measurement was not complete yet.</para></listitem> - <listitem><para><constant>FE_SCALE_DECIBEL</constant> - Signal/Noise ratio is in 0.0001 dB units.</para></listitem> + <listitem><para><constant>FE_SCALE_DECIBEL</constant> - Signal/Noise ratio is in 0.001 dB units.</para></listitem> <listitem><para><constant>FE_SCALE_RELATIVE</constant> - The frontend provides a 0% to 100% measurement for Signal/Noise (actually, 0 to 65535).</para></listitem> </itemizedlist> </section> @@ -985,7 +1348,7 @@ enum fe_interleaving { <title><constant>DTV_STAT_PRE_TOTAL_BIT_COUNT</constant></title> <para>Measures the amount of bits received before the inner code block, during the same period as <link linkend="DTV-STAT-PRE-ERROR-BIT-COUNT"><constant>DTV_STAT_PRE_ERROR_BIT_COUNT</constant></link> measurement was taken.</para> - <para>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream, + <para>It should be noted that this measurement can be smaller than the total amount of bits on the transport stream, as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</para> <para>This measurement is monotonically increased, as the frontend gets more bit count measurements. The frontend may reset it when a channel/transponder is tuned.</para> @@ -1014,7 +1377,7 @@ enum fe_interleaving { <title><constant>DTV_STAT_POST_TOTAL_BIT_COUNT</constant></title> <para>Measures the amount of bits received after the inner coding, during the same period as <link linkend="DTV-STAT-POST-ERROR-BIT-COUNT"><constant>DTV_STAT_POST_ERROR_BIT_COUNT</constant></link> measurement was taken.</para> - <para>It should be noticed that this measurement can be smaller than the total amount of bits on the transport stream, + <para>It should be noted that this measurement can be smaller than the total amount of bits on the transport stream, as the frontend may need to manually restart the measurement, losing some data between each measurement interval.</para> <para>This measurement is monotonically increased, as the frontend gets more bit count measurements. The frontend may reset it when a channel/transponder is tuned.</para> @@ -1255,8 +1618,8 @@ enum fe_interleaving { <para>In addition, the <link linkend="frontend-stat-properties">DTV QoS statistics</link> are also valid.</para> </section> </section> - <section id="frontend-property-satellital-systems"> - <title>Properties used on satellital delivery systems</title> + <section id="frontend-property-satellite-systems"> + <title>Properties used on satellite delivery systems</title> <section id="dvbs-params"> <title>DVB-S delivery system</title> <para>The following parameters are valid for DVB-S:</para> diff --git a/Documentation/DocBook/media/dvb/examples.xml b/Documentation/DocBook/media/dvb/examples.xml index f037e568eb6e..c9f68c7183cc 100644 --- a/Documentation/DocBook/media/dvb/examples.xml +++ b/Documentation/DocBook/media/dvb/examples.xml @@ -1,8 +1,10 @@ <title>Examples</title> <para>In this section we would like to present some examples for using the DVB API. </para> -<para>Maintainer note: This section is out of date. Please refer to the sample programs packaged -with the driver distribution from <ulink url="http://linuxtv.org/hg/dvb-apps" />. +<para>NOTE: This section is out of date, and the code below won't even + compile. Please refer to the + <ulink url="http://linuxtv.org/docs/libdvbv5/index.html">libdvbv5</ulink> + for updated/recommended examples. </para> <section id="tuning"> diff --git a/Documentation/DocBook/media/dvb/fe-diseqc-recv-slave-reply.xml b/Documentation/DocBook/media/dvb/fe-diseqc-recv-slave-reply.xml new file mode 100644 index 000000000000..4595dbfff208 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-diseqc-recv-slave-reply.xml @@ -0,0 +1,78 @@ +<refentry id="FE_DISEQC_RECV_SLAVE_REPLY"> + <refmeta> + <refentrytitle>ioctl FE_DISEQC_RECV_SLAVE_REPLY</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_DISEQC_RECV_SLAVE_REPLY</refname> + <refpurpose>Receives reply from a DiSEqC 2.0 command</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 dvb_diseqc_slave_reply *<parameter>argp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_DISEQC_RECV_SLAVE_REPLY</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para>pointer to &dvb-diseqc-slave-reply;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Receives reply from a DiSEqC 2.0 command.</para> +&return-value-dvb; + +<table pgwide="1" frame="none" id="dvb-diseqc-slave-reply"> + <title>struct <structname>dvb_diseqc_slave_reply</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>uint8_t</entry> + <entry>msg[4]</entry> + <entry>DiSEqC message (framing, data[3])</entry> + </row><row> + <entry>uint8_t</entry> + <entry>msg_len</entry> + <entry>Length of the DiSEqC message. Valid values are 0 to 4, + where 0 means no msg</entry> + </row><row> + <entry>int</entry> + <entry>timeout</entry> + <entry>Return from ioctl after timeout ms with errorcode when no + message was received</entry> + </row> + </tbody> + </tgroup> +</table> + +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-diseqc-reset-overload.xml b/Documentation/DocBook/media/dvb/fe-diseqc-reset-overload.xml new file mode 100644 index 000000000000..c104df77ecd0 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-diseqc-reset-overload.xml @@ -0,0 +1,51 @@ +<refentry id="FE_DISEQC_RESET_OVERLOAD"> + <refmeta> + <refentrytitle>ioctl FE_DISEQC_RESET_OVERLOAD</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_DISEQC_RESET_OVERLOAD</refname> + <refpurpose>Restores the power to the antenna subsystem, if it was powered + off due to power overload.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>NULL</paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_DISEQC_RESET_OVERLOAD</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>If the bus has been automatically powered off due to power overload, this ioctl + call restores the power to the bus. The call requires read/write access to the + device. This call has no effect if the device is manually powered off. Not all + DVB adapters support this ioctl.</para> +&return-value-dvb; +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-diseqc-send-burst.xml b/Documentation/DocBook/media/dvb/fe-diseqc-send-burst.xml new file mode 100644 index 000000000000..9f6a68f32de3 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-diseqc-send-burst.xml @@ -0,0 +1,89 @@ +<refentry id="FE_DISEQC_SEND_BURST"> + <refmeta> + <refentrytitle>ioctl FE_DISEQC_SEND_BURST</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_DISEQC_SEND_BURST</refname> + <refpurpose>Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>enum fe_sec_mini_cmd *<parameter>tone</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_DISEQC_SEND_BURST</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>tone</parameter></term> + <listitem> + <para>pointer to &fe-sec-mini-cmd;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + +<para>This ioctl is used to set the generation of a 22kHz tone burst for mini + DiSEqC satellite + selection for 2x1 switches. + This call requires read/write permissions.</para> +<para>It provides support for what's specified at + <ulink url="http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf">Digital Satellite Equipment Control + (DiSEqC) - Simple "ToneBurst" Detection Circuit specification.</ulink> + </para> +&return-value-dvb; +</refsect1> + +<refsect1 id="fe-sec-mini-cmd-t"> +<title>enum fe_sec_mini_cmd</title> + +<table pgwide="1" frame="none" id="fe-sec-mini-cmd"> + <title>enum fe_sec_mini_cmd</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="SEC-MINI-A"><constant>SEC_MINI_A</constant></entry> + <entry align="char">Sends a mini-DiSEqC 22kHz '0' Tone Burst to + select satellite-A</entry> + </row><row> + <entry align="char" id="SEC-MINI-B"><constant>SEC_MINI_B</constant></entry> + <entry align="char">Sends a mini-DiSEqC 22kHz '1' Data Burst to + select satellite-B</entry> + </row> + </tbody> + </tgroup> +</table> +</refsect1> + +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-diseqc-send-master-cmd.xml b/Documentation/DocBook/media/dvb/fe-diseqc-send-master-cmd.xml new file mode 100644 index 000000000000..38cf313e121b --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-diseqc-send-master-cmd.xml @@ -0,0 +1,72 @@ +<refentry id="FE_DISEQC_SEND_MASTER_CMD"> + <refmeta> + <refentrytitle>ioctl FE_DISEQC_SEND_MASTER_CMD</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_DISEQC_SEND_MASTER_CMD</refname> + <refpurpose>Sends a DiSEqC command</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 dvb_diseqc_master_cmd *<parameter>argp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_DISEQC_SEND_MASTER_CMD</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para>pointer to &dvb-diseqc-master-cmd;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Sends a DiSEqC command to the antenna subsystem.</para> +&return-value-dvb; + +<table pgwide="1" frame="none" id="dvb-diseqc-master-cmd"> + <title>struct <structname>dvb_diseqc_master_cmd</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>uint8_t</entry> + <entry>msg[6]</entry> + <entry>DiSEqC message (framing, address, command, data[3])</entry> + </row><row> + <entry>uint8_t</entry> + <entry>msg_len</entry> + <entry>Length of the DiSEqC message. Valid values are 3 to 6</entry> + </row> + </tbody> + </tgroup> +</table> + +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-enable-high-lnb-voltage.xml b/Documentation/DocBook/media/dvb/fe-enable-high-lnb-voltage.xml new file mode 100644 index 000000000000..c11890b184ad --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-enable-high-lnb-voltage.xml @@ -0,0 +1,61 @@ +<refentry id="FE_ENABLE_HIGH_LNB_VOLTAGE"> + <refmeta> + <refentrytitle>ioctl FE_ENABLE_HIGH_LNB_VOLTAGE</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_ENABLE_HIGH_LNB_VOLTAGE</refname> + <refpurpose>Select output DC level between normal LNBf voltages or higher + LNBf voltages.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>unsigned int <parameter>high</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_ENABLE_HIGH_LNB_VOLTAGE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>high</parameter></term> + <listitem> + <para>Valid flags:</para> + <itemizedlist> + <listitem><para>0 - normal 13V and 18V.</para></listitem> + <listitem><para>>0 - enables slightly higher voltages instead of + 13/18V, in order to compensate for long antenna cables.</para></listitem> + </itemizedlist> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Select output DC level between normal LNBf voltages or higher + LNBf voltages between 0 (normal) or a value grater than 0 for higher + voltages.</para> +&return-value-dvb; +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-get-info.xml b/Documentation/DocBook/media/dvb/fe-get-info.xml new file mode 100644 index 000000000000..ed0eeb29dd65 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-get-info.xml @@ -0,0 +1,266 @@ +<refentry id="FE_GET_INFO"> + <refmeta> + <refentrytitle>ioctl FE_GET_INFO</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_GET_INFO</refname> + <refpurpose>Query DVB frontend capabilities and returns information about + the front-end. This call only requires read-only access to the device</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 dvb_frontend_info *<parameter>argp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_GET_INFO</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para>pointer to struct &dvb-frontend-info;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>All DVB frontend devices support the +<constant>FE_GET_INFO</constant> ioctl. It is used to identify +kernel devices compatible with this specification and to obtain +information about driver and hardware capabilities. The ioctl takes a +pointer to dvb_frontend_info which is filled by the driver. When the +driver is not compatible with this specification the ioctl returns an error. +</para> +&return-value-dvb; + + <table pgwide="1" frame="none" id="dvb-frontend-info"> + <title>struct <structname>dvb_frontend_info</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>char</entry> + <entry>name[128]</entry> + <entry>Name of the frontend</entry> + </row><row> + <entry>fe_type_t</entry> + <entry>type</entry> + <entry><emphasis role="bold">DEPRECATED</emphasis>. DVBv3 type. Should not be used on modern programs, as a + frontend may have more than one type. So, the DVBv5 API should + be used instead to enumerate and select the frontend type.</entry> + </row><row> + <entry>uint32_t</entry> + <entry>frequency_min</entry> + <entry>Minimal frequency supported by the frontend</entry> + </row><row> + <entry>uint32_t</entry> + <entry>frequency_max</entry> + <entry>Maximal frequency supported by the frontend</entry> + </row><row> + <entry>uint32_t</entry> + <entry>frequency_stepsize</entry> + <entry>Frequency step - all frequencies are multiple of this value</entry> + </row><row> + <entry>uint32_t</entry> + <entry>frequency_tolerance</entry> + <entry>Tolerance of the frequency</entry> + </row><row> + <entry>uint32_t</entry> + <entry>symbol_rate_min</entry> + <entry>Minimal symbol rate (for Cable/Satellite systems), in bauds</entry> + </row><row> + <entry>uint32_t</entry> + <entry>symbol_rate_max</entry> + <entry>Maximal symbol rate (for Cable/Satellite systems), in bauds</entry> + </row><row> + <entry>uint32_t</entry> + <entry>symbol_rate_tolerance</entry> + <entry>Maximal symbol rate tolerance, in ppm</entry> + </row><row> + <entry>uint32_t</entry> + <entry>notifier_delay</entry> + <entry><emphasis role="bold">DEPRECATED</emphasis>. Not used by any driver.</entry> + </row><row> + <entry>&fe-caps;</entry> + <entry>caps</entry> + <entry>Capabilities supported by the frontend</entry> + </row> + </tbody> + </tgroup> + </table> + + <para>NOTE: The frequencies are specified in Hz for Terrestrial and Cable + systems. They're specified in kHz for Satellite systems</para> + </refsect1> + +<refsect1 id="fe-caps-t"> +<title>frontend capabilities</title> + +<para>Capabilities describe what a frontend can do. Some capabilities are + supported only on some specific frontend types.</para> + +<table pgwide="1" frame="none" id="fe-caps"> + <title>enum fe_caps</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="FE-IS-STUPID"><constant>FE_IS_STUPID</constant></entry> + <entry>There's something wrong at the frontend, and it can't + report its capabilities</entry> + </row> + <row> + <entry id="FE-CAN-INVERSION-AUTO"><constant>FE_CAN_INVERSION_AUTO</constant></entry> + <entry>The frontend is capable of auto-detecting inversion</entry> + </row> + <row> + <entry id="FE-CAN-FEC-1-2"><constant>FE_CAN_FEC_1_2</constant></entry> + <entry>The frontend supports FEC 1/2</entry> + </row> + <row> + <entry id="FE-CAN-FEC-2-3"><constant>FE_CAN_FEC_2_3</constant></entry> + <entry>The frontend supports FEC 2/3</entry> + </row> + <row> + <entry id="FE-CAN-FEC-3-4"><constant>FE_CAN_FEC_3_4</constant></entry> + <entry>The frontend supports FEC 3/4</entry> + </row> + <row> + <entry id="FE-CAN-FEC-4-5"><constant>FE_CAN_FEC_4_5</constant></entry> + <entry>The frontend supports FEC 4/5</entry> + </row> + <row> + <entry id="FE-CAN-FEC-5-6"><constant>FE_CAN_FEC_5_6</constant></entry> + <entry>The frontend supports FEC 5/6</entry> + </row> + <row> + <entry id="FE-CAN-FEC-6-7"><constant>FE_CAN_FEC_6_7</constant></entry> + <entry>The frontend supports FEC 6/7</entry> + </row> + <row> + <entry id="FE-CAN-FEC-7-8"><constant>FE_CAN_FEC_7_8</constant></entry> + <entry>The frontend supports FEC 7/8</entry> + </row> + <row> + <entry id="FE-CAN-FEC-8-9"><constant>FE_CAN_FEC_8_9</constant></entry> + <entry>The frontend supports FEC 8/9</entry> + </row> + <row> + <entry id="FE-CAN-FEC-AUTO"><constant>FE_CAN_FEC_AUTO</constant></entry> + <entry>The frontend can autodetect FEC.</entry> + </row> + <row> + <entry id="FE-CAN-QPSK"><constant>FE_CAN_QPSK</constant></entry> + <entry>The frontend supports QPSK modulation</entry> + </row> + <row> + <entry id="FE-CAN-QAM-16"><constant>FE_CAN_QAM_16</constant></entry> + <entry>The frontend supports 16-QAM modulation</entry> + </row> + <row> + <entry id="FE-CAN-QAM-32"><constant>FE_CAN_QAM_32</constant></entry> + <entry>The frontend supports 32-QAM modulation</entry> + </row> + <row> + <entry id="FE-CAN-QAM-64"><constant>FE_CAN_QAM_64</constant></entry> + <entry>The frontend supports 64-QAM modulation</entry> + </row> + <row> + <entry id="FE-CAN-QAM-128"><constant>FE_CAN_QAM_128</constant></entry> + <entry>The frontend supports 128-QAM modulation</entry> + </row> + <row> + <entry id="FE-CAN-QAM-256"><constant>FE_CAN_QAM_256</constant></entry> + <entry>The frontend supports 256-QAM modulation</entry> + </row> + <row> + <entry id="FE-CAN-QAM-AUTO"><constant>FE_CAN_QAM_AUTO</constant></entry> + <entry>The frontend can autodetect modulation</entry> + </row> + <row> + <entry id="FE-CAN-TRANSMISSION-MODE-AUTO"><constant>FE_CAN_TRANSMISSION_MODE_AUTO</constant></entry> + <entry>The frontend can autodetect the transmission mode</entry> + </row> + <row> + <entry id="FE-CAN-BANDWIDTH-AUTO"><constant>FE_CAN_BANDWIDTH_AUTO</constant></entry> + <entry>The frontend can autodetect the bandwidth</entry> + </row> + <row> + <entry id="FE-CAN-GUARD-INTERVAL-AUTO"><constant>FE_CAN_GUARD_INTERVAL_AUTO</constant></entry> + <entry>The frontend can autodetect the guard interval</entry> + </row> + <row> + <entry id="FE-CAN-HIERARCHY-AUTO"><constant>FE_CAN_HIERARCHY_AUTO</constant></entry> + <entry>The frontend can autodetect hierarch</entry> + </row> + <row> + <entry id="FE-CAN-8VSB"><constant>FE_CAN_8VSB</constant></entry> + <entry>The frontend supports 8-VSB modulation</entry> + </row> + <row> + <entry id="FE-CAN-16VSB"><constant>FE_CAN_16VSB</constant></entry> + <entry>The frontend supports 16-VSB modulation</entry> + </row> + <row> + <entry id="FE-HAS-EXTENDED-CAPS"><constant>FE_HAS_EXTENDED_CAPS</constant></entry> + <entry>Currently, unused</entry> + </row> + <row> + <entry id="FE-CAN-MULTISTREAM"><constant>FE_CAN_MULTISTREAM</constant></entry> + <entry>The frontend supports multistream filtering</entry> + </row> + <row> + <entry id="FE-CAN-TURBO-FEC"><constant>FE_CAN_TURBO_FEC</constant></entry> + <entry>The frontend supports turbo FEC modulation</entry> + </row> + <row> + <entry id="FE-CAN-2G-MODULATION"><constant>FE_CAN_2G_MODULATION</constant></entry> + <entry>The frontend supports "2nd generation modulation" (DVB-S2/T2)></entry> + </row> + <row> + <entry id="FE-NEEDS-BENDING"><constant>FE_NEEDS_BENDING</constant></entry> + <entry>Not supported anymore, don't use it</entry> + </row> + <row> + <entry id="FE-CAN-RECOVER"><constant>FE_CAN_RECOVER</constant></entry> + <entry>The frontend can recover from a cable unplug automatically</entry> + </row> + <row> + <entry id="FE-CAN-MUTE-TS"><constant>FE_CAN_MUTE_TS</constant></entry> + <entry>The frontend can stop spurious TS data output</entry> + </row> + </tbody> + </tgroup> +</table> +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-get-property.xml b/Documentation/DocBook/media/dvb/fe-get-property.xml new file mode 100644 index 000000000000..53a170ed3bd1 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-get-property.xml @@ -0,0 +1,81 @@ +<refentry id="FE_GET_PROPERTY"> + <refmeta> + <refentrytitle>ioctl FE_SET_PROPERTY, FE_GET_PROPERTY</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_SET_PROPERTY</refname> + <refname>FE_GET_PROPERTY</refname> + <refpurpose>FE_SET_PROPERTY sets one or more frontend properties. + FE_GET_PROPERTY returns one or more frontend properties.</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 dtv_properties *<parameter>argp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_PROPERTY, FE_GET_PROPERTY</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para>pointer to &dtv-properties;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>All DVB frontend devices support the +<constant>FE_SET_PROPERTY</constant> and <constant>FE_GET_PROPERTY</constant> +ioctls. The supported properties and statistics depends on the delivery system +and on the device:</para> +<itemizedlist> +<listitem> + <para><constant>FE_SET_PROPERTY:</constant></para> +<itemizedlist> +<listitem><para>This ioctl is used to set one or more + frontend properties.</para></listitem> +<listitem><para>This is the basic command to request the frontend to tune into some + frequency and to start decoding the digital TV signal.</para></listitem> +<listitem><para>This call requires read/write access to the device.</para></listitem> +<listitem><para>At return, the values are updated to reflect the + actual parameters used.</para></listitem> +</itemizedlist> +</listitem> +<listitem> + <para><constant>FE_GET_PROPERTY:</constant></para> +<itemizedlist> +<listitem><para>This ioctl is used to get properties and +statistics from the frontend.</para></listitem> +<listitem><para>No properties are changed, and statistics aren't reset.</para></listitem> +<listitem><para>This call only requires read-only access to the device.</para></listitem> +</itemizedlist> +</listitem> +</itemizedlist> +&return-value-dvb; +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-read-status.xml b/Documentation/DocBook/media/dvb/fe-read-status.xml new file mode 100644 index 000000000000..bc0dc2a55f19 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-read-status.xml @@ -0,0 +1,107 @@ +<refentry id="FE_READ_STATUS"> + <refmeta> + <refentrytitle>ioctl FE_READ_STATUS</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_READ_STATUS</refname> + <refpurpose>Returns status information about the front-end. This call only + requires read-only access to the device</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>unsigned int *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_READ_STATUS</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem> + <para>pointer to a bitmask integer filled with the values defined by + &fe-status;.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>All DVB frontend devices support the +<constant>FE_READ_STATUS</constant> ioctl. It is used to check about the +locking status of the frontend after being tuned. The ioctl takes a +pointer to an integer where the status will be written. +</para> +<para>NOTE: the size of status is actually sizeof(enum fe_status), with varies + according with the architecture. This needs to be fixed in the future.</para> +&return-value-dvb; +</refsect1> + +<refsect1 id="fe-status-t"> +<title>int fe_status</title> + +<para>The fe_status parameter is used to indicate the current state + and/or state changes of the frontend hardware. It is produced using + the &fe-status; values on a bitmask</para> + +<table pgwide="1" frame="none" id="fe-status"> + <title>enum fe_status</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="FE-HAS-SIGNAL"><constant>FE_HAS_SIGNAL</constant></entry> + <entry align="char">The frontend has found something above the noise level</entry> + </row><row> + <entry align="char" id="FE-HAS-CARRIER"><constant>FE_HAS_CARRIER</constant></entry> + <entry align="char">The frontend has found a DVB signal</entry> + </row><row> + <entry align="char" id="FE-HAS-VITERBI"><constant>FE_HAS_VITERBI</constant></entry> + <entry align="char">The frontend FEC inner coding (Viterbi, LDPC or other inner code) is stable</entry> + </row><row> + <entry align="char" id="FE-HAS-SYNC"><constant>FE_HAS_SYNC</constant></entry> + <entry align="char">Synchronization bytes was found</entry> + </row><row> + <entry align="char" id="FE-HAS-LOCK"><constant>FE_HAS_LOCK</constant></entry> + <entry align="char">The DVB were locked and everything is working</entry> + </row><row> + <entry align="char" id="FE-TIMEDOUT"><constant>FE_TIMEDOUT</constant></entry> + <entry align="char">no lock within the last about 2 seconds</entry> + </row><row> + <entry align="char" id="FE-REINIT"><constant>FE_REINIT</constant></entry> + <entry align="char">The frontend was reinitialized, application is + recommended to reset DiSEqC, tone and parameters</entry> + </row> + </tbody> + </tgroup> +</table> +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-set-frontend-tune-mode.xml b/Documentation/DocBook/media/dvb/fe-set-frontend-tune-mode.xml new file mode 100644 index 000000000000..99fa8a015c7a --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-set-frontend-tune-mode.xml @@ -0,0 +1,64 @@ +<refentry id="FE_SET_FRONTEND_TUNE_MODE"> + <refmeta> + <refentrytitle>ioctl FE_SET_FRONTEND_TUNE_MODE</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_SET_FRONTEND_TUNE_MODE</refname> + <refpurpose>Allow setting tuner mode flags to the frontend.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>unsigned int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_FRONTEND_TUNE_MODE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>flags</parameter></term> + <listitem> + <para>Valid flags:</para> + <itemizedlist> + <listitem><para>0 - normal tune mode</para></listitem> + <listitem><para>FE_TUNE_MODE_ONESHOT - When set, this flag will + disable any zigzagging or other "normal" tuning behaviour. + Additionally, there will be no automatic monitoring of the + lock status, and hence no frontend events will be + generated. If a frontend device is closed, this flag will + be automatically turned off when the device is reopened + read-write.</para></listitem> + </itemizedlist> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Allow setting tuner mode flags to the frontend, between 0 (normal) + or FE_TUNE_MODE_ONESHOT mode</para> +&return-value-dvb; +</refsect1> +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-set-tone.xml b/Documentation/DocBook/media/dvb/fe-set-tone.xml new file mode 100644 index 000000000000..62d44e4ccc39 --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-set-tone.xml @@ -0,0 +1,91 @@ +<refentry id="FE_SET_TONE"> + <refmeta> + <refentrytitle>ioctl FE_SET_TONE</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_SET_TONE</refname> + <refpurpose>Sets/resets the generation of the continuous 22kHz tone.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>enum fe_sec_tone_mode *<parameter>tone</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_TONE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>tone</parameter></term> + <listitem> + <para>pointer to &fe-sec-tone-mode;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + +<para>This ioctl is used to set the generation of the continuous 22kHz tone. + This call requires read/write permissions.</para> +<para>Usually, satellite antenna subsystems require that the digital TV + device to send a 22kHz tone in order to select between high/low band on + some dual-band LNBf. It is also used to send signals to DiSEqC equipment, + but this is done using the DiSEqC ioctls.</para> +<para>NOTE: if more than one device is connected to the same antenna, + setting a tone may interfere on other devices, as they may lose + the capability of selecting the band. So, it is recommended that + applications would change to SEC_TONE_OFF when the device is not used.</para> + +&return-value-dvb; +</refsect1> + +<refsect1 id="fe-sec-tone-mode-t"> +<title>enum fe_sec_tone_mode</title> + +<table pgwide="1" frame="none" id="fe-sec-tone-mode"> + <title>enum fe_sec_tone_mode</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char" id="SEC-TONE-ON"><constant>SEC_TONE_ON</constant></entry> + <entry align="char">Sends a 22kHz tone burst to the antenna</entry> + </row><row> + <entry align="char" id="SEC-TONE-OFF"><constant>SEC_TONE_OFF</constant></entry> + <entry align="char">Don't send a 22kHz tone to the antenna + (except if the FE_DISEQC_* ioctls are called)</entry> + </row> + </tbody> + </tgroup> +</table> +</refsect1> + +</refentry> diff --git a/Documentation/DocBook/media/dvb/fe-set-voltage.xml b/Documentation/DocBook/media/dvb/fe-set-voltage.xml new file mode 100644 index 000000000000..c89a6f79b5af --- /dev/null +++ b/Documentation/DocBook/media/dvb/fe-set-voltage.xml @@ -0,0 +1,69 @@ +<refentry id="FE_SET_VOLTAGE"> + <refmeta> + <refentrytitle>ioctl FE_SET_VOLTAGE</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>FE_SET_VOLTAGE</refname> + <refpurpose>Allow setting the DC level sent to the antenna subsystem.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>enum fe_sec_voltage *<parameter>voltage</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_VOLTAGE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>voltage</parameter></term> + <listitem> + <para>pointer to &fe-sec-voltage;</para> + <para>Valid values are described at &fe-sec-voltage;.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + +<para>This ioctl allows to set the DC voltage level sent through the antenna + cable to 13V, 18V or off.</para> +<para>Usually, a satellite antenna subsystems require that the digital TV + device to send a DC voltage to feed power to the LNBf. Depending on the + LNBf type, the polarization or the intermediate frequency (IF) of the LNBf + can controlled by the voltage level. Other devices (for example, the ones + that implement DISEqC and multipoint LNBf's don't need to control the + voltage level, provided that either 13V or 18V is sent to power up the + LNBf.</para> +<para>NOTE: if more than one device is connected to the same antenna, + setting a voltage level may interfere on other devices, as they may lose + the capability of setting polarization or IF. So, on those + cases, setting the voltage to SEC_VOLTAGE_OFF while the device is not is + used is recommended.</para> + +&return-value-dvb; +</refsect1> + +</refentry> diff --git a/Documentation/DocBook/media/dvb/frontend.xml b/Documentation/DocBook/media/dvb/frontend.xml index 8a6a6ff27af5..01210b33c130 100644 --- a/Documentation/DocBook/media/dvb/frontend.xml +++ b/Documentation/DocBook/media/dvb/frontend.xml @@ -1,485 +1,112 @@ <title>DVB Frontend API</title> -<para>The DVB frontend device controls the tuner and DVB demodulator -hardware. It can be accessed through <emphasis -role="tt">/dev/dvb/adapter0/frontend0</emphasis>. Data types and and -ioctl definitions can be accessed by including <emphasis -role="tt">linux/dvb/frontend.h</emphasis> in your application.</para> - -<para>DVB frontends come in three varieties: DVB-S (satellite), DVB-C -(cable) and DVB-T (terrestrial). Transmission via the internet (DVB-IP) -is not yet handled by this API but a future extension is possible. For -DVB-S the frontend device also supports satellite equipment control -(SEC) via DiSEqC and V-SEC protocols. The DiSEqC (digital SEC) -specification is available from +<para>The DVB frontend API was designed to support three types of delivery systems:</para> +<itemizedlist> + <listitem><para>Terrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H, DTMB, CMMB</para></listitem> + <listitem><para>Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B), ISDB-C</para></listitem> + <listitem><para>Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS</para></listitem> +</itemizedlist> +<para>The DVB frontend controls several sub-devices including:</para> +<itemizedlist> + <listitem><para>Tuner</para></listitem> + <listitem><para>Digital TV demodulator</para></listitem> + <listitem><para>Low noise amplifier (LNA)</para></listitem> + <listitem><para>Satellite Equipment Control (SEC) hardware (only for Satellite).</para></listitem> +</itemizedlist> +<para>The frontend can be accessed through + <constant>/dev/dvb/adapter?/frontend?</constant>. Data types and + ioctl definitions can be accessed by including + <constant>linux/dvb/frontend.h</constant> in your application. +</para> + +<para>NOTE: Transmission via the internet (DVB-IP) + is not yet handled by this API but a future extension is possible.</para> +<para>On Satellite systems, the API support for the Satellite Equipment Control + (SEC) allows to power control and to send/receive signals to control the + antenna subsystem, selecting the polarization and choosing the Intermediate + Frequency IF) of the Low Noise Block Converter Feed Horn (LNBf). It + supports the DiSEqC and V-SEC protocols. The DiSEqC (digital SEC) +specification is available at <ulink url="http://www.eutelsat.com/satellites/4_5_5.html">Eutelsat</ulink>.</para> -<para>Note that the DVB API may also be used for MPEG decoder-only PCI -cards, in which case there exists no frontend device.</para> - -<section id="frontend_types"> -<title>Frontend Data Types</title> - -<section id="fe-type-t"> -<title>Frontend type</title> - -<para>For historical reasons, frontend types are named by the type of modulation used in -transmission. The fontend types are given by fe_type_t type, defined as:</para> - -<table pgwide="1" frame="none" id="fe-type"> -<title>Frontend types</title> -<tgroup cols="3"> - &cs-def; - <thead> - <row> - <entry>fe_type</entry> - <entry>Description</entry> - <entry><link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> equivalent type</entry> - </row> - </thead> - <tbody valign="top"> - <row> - <entry id="FE_QPSK"><constant>FE_QPSK</constant></entry> - <entry>For DVB-S standard</entry> - <entry><constant>SYS_DVBS</constant></entry> - </row> - <row> - <entry id="FE_QAM"><constant>FE_QAM</constant></entry> - <entry>For DVB-C annex A standard</entry> - <entry><constant>SYS_DVBC_ANNEX_A</constant></entry> - </row> - <row> - <entry id="FE_OFDM"><constant>FE_OFDM</constant></entry> - <entry>For DVB-T standard</entry> - <entry><constant>SYS_DVBT</constant></entry> - </row> - <row> - <entry id="FE_ATSC"><constant>FE_ATSC</constant></entry> - <entry>For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used in US.</entry> - <entry><constant>SYS_ATSC</constant> (terrestrial) or <constant>SYS_DVBC_ANNEX_B</constant> (cable)</entry> - </row> -</tbody></tgroup></table> - -<para>Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described at the above, as they're -supported via the new <link linkend="FE_GET_SET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> ioctl's, using the <link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> parameter. -</para> - -<para>The usage of this field is deprecated, as it doesn't report all supported standards, and -will provide an incomplete information for frontends that support multiple delivery systems. -Please use <link linkend="DTV-ENUM-DELSYS">DTV_ENUM_DELSYS</link> instead.</para> -</section> - -<section id="fe-caps-t"> -<title>frontend capabilities</title> - -<para>Capabilities describe what a frontend can do. Some capabilities can only be supported for -a specific frontend type.</para> -<programlisting> - typedef enum fe_caps { - FE_IS_STUPID = 0, - FE_CAN_INVERSION_AUTO = 0x1, - FE_CAN_FEC_1_2 = 0x2, - FE_CAN_FEC_2_3 = 0x4, - FE_CAN_FEC_3_4 = 0x8, - FE_CAN_FEC_4_5 = 0x10, - FE_CAN_FEC_5_6 = 0x20, - FE_CAN_FEC_6_7 = 0x40, - FE_CAN_FEC_7_8 = 0x80, - FE_CAN_FEC_8_9 = 0x100, - FE_CAN_FEC_AUTO = 0x200, - FE_CAN_QPSK = 0x400, - FE_CAN_QAM_16 = 0x800, - FE_CAN_QAM_32 = 0x1000, - FE_CAN_QAM_64 = 0x2000, - FE_CAN_QAM_128 = 0x4000, - FE_CAN_QAM_256 = 0x8000, - FE_CAN_QAM_AUTO = 0x10000, - FE_CAN_TRANSMISSION_MODE_AUTO = 0x20000, - FE_CAN_BANDWIDTH_AUTO = 0x40000, - FE_CAN_GUARD_INTERVAL_AUTO = 0x80000, - FE_CAN_HIERARCHY_AUTO = 0x100000, - FE_CAN_8VSB = 0x200000, - FE_CAN_16VSB = 0x400000, - FE_HAS_EXTENDED_CAPS = 0x800000, - FE_CAN_MULTISTREAM = 0x4000000, - FE_CAN_TURBO_FEC = 0x8000000, - FE_CAN_2G_MODULATION = 0x10000000, - FE_NEEDS_BENDING = 0x20000000, - FE_CAN_RECOVER = 0x40000000, - FE_CAN_MUTE_TS = 0x80000000 - } fe_caps_t; -</programlisting> -</section> - -<section id="dvb-frontend-info"> -<title>frontend information</title> - -<para>Information about the frontend ca be queried with - <link linkend="FE_GET_INFO">FE_GET_INFO</link>.</para> - -<programlisting> - struct dvb_frontend_info { - char name[128]; - fe_type_t type; - uint32_t frequency_min; - uint32_t frequency_max; - uint32_t frequency_stepsize; - uint32_t frequency_tolerance; - uint32_t symbol_rate_min; - uint32_t symbol_rate_max; - uint32_t symbol_rate_tolerance; /⋆ ppm ⋆/ - uint32_t notifier_delay; /⋆ ms ⋆/ - fe_caps_t caps; - }; -</programlisting> -</section> - -<section id="dvb-diseqc-master-cmd"> -<title>diseqc master command</title> - -<para>A message sent from the frontend to DiSEqC capable equipment.</para> -<programlisting> - struct dvb_diseqc_master_cmd { - uint8_t msg [6]; /⋆ { framing, address, command, data[3] } ⋆/ - uint8_t msg_len; /⋆ valid values are 3...6 ⋆/ - }; -</programlisting> -</section> -<section role="subsection" id="dvb-diseqc-slave-reply"> -<title>diseqc slave reply</title> - -<para>A reply to the frontend from DiSEqC 2.0 capable equipment.</para> -<programlisting> - struct dvb_diseqc_slave_reply { - uint8_t msg [4]; /⋆ { framing, data [3] } ⋆/ - uint8_t msg_len; /⋆ valid values are 0...4, 0 means no msg ⋆/ - int timeout; /⋆ return from ioctl after timeout ms with ⋆/ - }; /⋆ errorcode when no message was received ⋆/ -</programlisting> -</section> - -<section id="fe-sec-voltage-t"> -<title>diseqc slave reply</title> -<para>The voltage is usually used with non-DiSEqC capable LNBs to switch the polarzation -(horizontal/vertical). When using DiSEqC epuipment this voltage has to be switched -consistently to the DiSEqC commands as described in the DiSEqC spec.</para> -<programlisting> - typedef enum fe_sec_voltage { - SEC_VOLTAGE_13, - SEC_VOLTAGE_18 - } fe_sec_voltage_t; -</programlisting> -</section> - -<section id="fe-sec-tone-mode-t"> -<title>SEC continuous tone</title> +<section id="query-dvb-frontend-info"> +<title>Querying frontend information</title> -<para>The continuous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the -high/low band of a dual-band LNB. When using DiSEqC epuipment this voltage has to -be switched consistently to the DiSEqC commands as described in the DiSEqC -spec.</para> -<programlisting> - typedef enum fe_sec_tone_mode { - SEC_TONE_ON, - SEC_TONE_OFF - } fe_sec_tone_mode_t; -</programlisting> +<para>Usually, the first thing to do when the frontend is opened is to + check the frontend capabilities. This is done using <link linkend="FE_GET_INFO">FE_GET_INFO</link>. This ioctl will enumerate + the DVB API version and other characteristics about the frontend, and + can be opened either in read only or read/write mode.</para> </section> -<section id="fe-sec-mini-cmd-t"> -<title>SEC tone burst</title> - -<para>The 22KHz tone burst is usually used with non-DiSEqC capable switches to select -between two connected LNBs/satellites. When using DiSEqC epuipment this voltage has to -be switched consistently to the DiSEqC commands as described in the DiSEqC -spec.</para> -<programlisting> - typedef enum fe_sec_mini_cmd { - SEC_MINI_A, - SEC_MINI_B - } fe_sec_mini_cmd_t; -</programlisting> - -<para></para> -</section> - -<section id="fe-status-t"> -<title>frontend status</title> -<para>Several functions of the frontend device use the fe_status data type defined -by</para> -<programlisting> -typedef enum fe_status { - FE_HAS_SIGNAL = 0x01, - FE_HAS_CARRIER = 0x02, - FE_HAS_VITERBI = 0x04, - FE_HAS_SYNC = 0x08, - FE_HAS_LOCK = 0x10, - FE_TIMEDOUT = 0x20, - FE_REINIT = 0x40, -} fe_status_t; -</programlisting> -<para>to indicate the current state and/or state changes of the frontend hardware: -</para> - -<informaltable><tgroup cols="2"><tbody> -<row> -<entry align="char">FE_HAS_SIGNAL</entry> -<entry align="char">The frontend has found something above the noise level</entry> -</row><row> -<entry align="char">FE_HAS_CARRIER</entry> -<entry align="char">The frontend has found a DVB signal</entry> -</row><row> -<entry align="char">FE_HAS_VITERBI</entry> -<entry align="char">The frontend FEC inner coding (Viterbi, LDPC or other inner code) is stable</entry> -</row><row> -<entry align="char">FE_HAS_SYNC</entry> -<entry align="char">Synchronization bytes was found</entry> -</row><row> -<entry align="char">FE_HAS_LOCK</entry> -<entry align="char">The DVB were locked and everything is working</entry> -</row><row> -<entry align="char">FE_TIMEDOUT</entry> -<entry align="char">no lock within the last about 2 seconds</entry> -</row><row> -<entry align="char">FE_REINIT</entry> -<entry align="char">The frontend was reinitialized, application is -recommended to reset DiSEqC, tone and parameters</entry> -</row> -</tbody></tgroup></informaltable> +<section id="dvb-fe-read-status"> +<title>Querying frontend status and statistics</title> +<para>Once <link linkend="FE_GET_PROPERTY"><constant>FE_SET_PROPERTY</constant></link> + is called, the frontend will run a kernel thread that will periodically + check for the tuner lock status and provide statistics about the quality + of the signal.</para> +<para>The information about the frontend tuner locking status can be queried + using <link linkend="FE_READ_STATUS">FE_READ_STATUS</link>.</para> +<para>Signal statistics are provided via <link linkend="FE_GET_PROPERTY"><constant>FE_GET_PROPERTY</constant></link>. + Please note that several statistics require the demodulator to be fully + locked (e. g. with FE_HAS_LOCK bit set). See + <link linkend="frontend-stat-properties">Frontend statistics indicators</link> + for more details.</para> </section> -<section id="dvb-frontend-parameters"> -<title>frontend parameters</title> -<para>The kind of parameters passed to the frontend device for tuning depend on -the kind of hardware you are using.</para> -<para>The struct <constant>dvb_frontend_parameters</constant> uses an -union with specific per-system parameters. However, as newer delivery systems -required more data, the structure size weren't enough to fit, and just -extending its size would break the existing applications. So, those parameters -were replaced by the usage of <link linkend="FE_GET_SET_PROPERTY"> -<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> ioctl's. The -new API is flexible enough to add new parameters to existing delivery systems, -and to add newer delivery systems.</para> -<para>So, newer applications should use <link linkend="FE_GET_SET_PROPERTY"> -<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> instead, in -order to be able to support the newer System Delivery like DVB-S2, DVB-T2, -DVB-C2, ISDB, etc.</para> -<para>All kinds of parameters are combined as an union in the FrontendParameters structure: -<programlisting> -struct dvb_frontend_parameters { - uint32_t frequency; /⋆ (absolute) frequency in Hz for QAM/OFDM ⋆/ - /⋆ intermediate frequency in kHz for QPSK ⋆/ - fe_spectral_inversion_t inversion; - union { - struct dvb_qpsk_parameters qpsk; - struct dvb_qam_parameters qam; - struct dvb_ofdm_parameters ofdm; - struct dvb_vsb_parameters vsb; - } u; -}; -</programlisting></para> -<para>In the case of QPSK frontends the <constant>frequency</constant> field specifies the intermediate -frequency, i.e. the offset which is effectively added to the local oscillator frequency (LOF) of -the LNB. The intermediate frequency has to be specified in units of kHz. For QAM and -OFDM frontends the <constant>frequency</constant> specifies the absolute frequency and is given in Hz. -</para> - -<section id="dvb-qpsk-parameters"> -<title>QPSK parameters</title> -<para>For satellite QPSK frontends you have to use the <constant>dvb_qpsk_parameters</constant> structure:</para> -<programlisting> - struct dvb_qpsk_parameters { - uint32_t symbol_rate; /⋆ symbol rate in Symbols per second ⋆/ - fe_code_rate_t fec_inner; /⋆ forward error correction (see above) ⋆/ - }; -</programlisting> -</section> -<section id="dvb-qam-parameters"> -<title>QAM parameters</title> -<para>for cable QAM frontend you use the <constant>dvb_qam_parameters</constant> structure:</para> -<programlisting> - struct dvb_qam_parameters { - uint32_t symbol_rate; /⋆ symbol rate in Symbols per second ⋆/ - fe_code_rate_t fec_inner; /⋆ forward error correction (see above) ⋆/ - fe_modulation_t modulation; /⋆ modulation type (see above) ⋆/ - }; -</programlisting> -</section> -<section id="dvb-vsb-parameters"> -<title>VSB parameters</title> -<para>ATSC frontends are supported by the <constant>dvb_vsb_parameters</constant> structure:</para> -<programlisting> -struct dvb_vsb_parameters { - fe_modulation_t modulation; /⋆ modulation type (see above) ⋆/ -}; -</programlisting> -</section> -<section id="dvb-ofdm-parameters"> -<title>OFDM parameters</title> -<para>DVB-T frontends are supported by the <constant>dvb_ofdm_parameters</constant> structure:</para> -<programlisting> - struct dvb_ofdm_parameters { - fe_bandwidth_t bandwidth; - fe_code_rate_t code_rate_HP; /⋆ high priority stream code rate ⋆/ - fe_code_rate_t code_rate_LP; /⋆ low priority stream code rate ⋆/ - fe_modulation_t constellation; /⋆ modulation type (see above) ⋆/ - fe_transmit_mode_t transmission_mode; - fe_guard_interval_t guard_interval; - fe_hierarchy_t hierarchy_information; - }; -</programlisting> -</section> -<section id="fe-spectral-inversion-t"> -<title>frontend spectral inversion</title> -<para>The Inversion field can take one of these values: -</para> -<programlisting> -typedef enum fe_spectral_inversion { - INVERSION_OFF, - INVERSION_ON, - INVERSION_AUTO -} fe_spectral_inversion_t; -</programlisting> -<para>It indicates if spectral inversion should be presumed or not. In the automatic setting -(<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by -itself. -</para> -</section> -<section id="fe-code-rate-t"> -<title>frontend code rate</title> -<para>The possible values for the <constant>fec_inner</constant> field used on -<link linkend="dvb-qpsk-parameters"><constant>struct dvb_qpsk_parameters</constant></link> and -<link linkend="dvb-qam-parameters"><constant>struct dvb_qam_parameters</constant></link> are: -</para> -<programlisting> -typedef enum fe_code_rate { - FEC_NONE = 0, - FEC_1_2, - FEC_2_3, - FEC_3_4, - FEC_4_5, - FEC_5_6, - FEC_6_7, - FEC_7_8, - FEC_8_9, - FEC_AUTO, - FEC_3_5, - FEC_9_10, -} fe_code_rate_t; -</programlisting> -<para>which correspond to error correction rates of 1/2, 2/3, etc., no error correction or auto -detection. -</para> -</section> -<section id="fe-modulation-t"> -<title>frontend modulation type for QAM, OFDM and VSB</title> -<para>For cable and terrestrial frontends, e. g. for -<link linkend="dvb-qam-parameters"><constant>struct dvb_qpsk_parameters</constant></link>, -<link linkend="dvb-ofdm-parameters"><constant>struct dvb_qam_parameters</constant></link> and -<link linkend="dvb-vsb-parameters"><constant>struct dvb_qam_parameters</constant></link>, -it needs to specify the quadrature modulation mode which can be one of the following: -</para> -<programlisting> - typedef enum fe_modulation { - QPSK, - QAM_16, - QAM_32, - QAM_64, - QAM_128, - QAM_256, - QAM_AUTO, - VSB_8, - VSB_16, - PSK_8, - APSK_16, - APSK_32, - DQPSK, - } fe_modulation_t; -</programlisting> -</section> -<section> -<title>More OFDM parameters</title> -<section id="fe-transmit-mode-t"> -<title>Number of carriers per channel</title> -<programlisting> -typedef enum fe_transmit_mode { - TRANSMISSION_MODE_2K, - TRANSMISSION_MODE_8K, - TRANSMISSION_MODE_AUTO, - TRANSMISSION_MODE_4K, - TRANSMISSION_MODE_1K, - TRANSMISSION_MODE_16K, - TRANSMISSION_MODE_32K, - } fe_transmit_mode_t; -</programlisting> -</section> -<section id="fe-bandwidth-t"> -<title>frontend bandwidth</title> -<programlisting> -typedef enum fe_bandwidth { - BANDWIDTH_8_MHZ, - BANDWIDTH_7_MHZ, - BANDWIDTH_6_MHZ, - BANDWIDTH_AUTO, - BANDWIDTH_5_MHZ, - BANDWIDTH_10_MHZ, - BANDWIDTH_1_712_MHZ, -} fe_bandwidth_t; -</programlisting> -</section> -<section id="fe-guard-interval-t"> -<title>frontend guard inverval</title> -<programlisting> -typedef enum fe_guard_interval { - GUARD_INTERVAL_1_32, - GUARD_INTERVAL_1_16, - GUARD_INTERVAL_1_8, - GUARD_INTERVAL_1_4, - GUARD_INTERVAL_AUTO, - GUARD_INTERVAL_1_128, - GUARD_INTERVAL_19_128, - GUARD_INTERVAL_19_256, -} fe_guard_interval_t; -</programlisting> -</section> -<section id="fe-hierarchy-t"> -<title>frontend hierarchy</title> -<programlisting> -typedef enum fe_hierarchy { - HIERARCHY_NONE, - HIERARCHY_1, - HIERARCHY_2, - HIERARCHY_4, - HIERARCHY_AUTO - } fe_hierarchy_t; -</programlisting> -</section> -</section> - -</section> - -<section id="dvb-frontend-event"> -<title>frontend events</title> - <programlisting> - struct dvb_frontend_event { - fe_status_t status; - struct dvb_frontend_parameters parameters; - }; -</programlisting> - </section> -</section> - +&sub-dvbproperty; <section id="frontend_fcalls"> <title>Frontend Function Calls</title> -<section id="frontend_f_open"> -<title>open()</title> -<para>DESCRIPTION</para> -<informaltable><tgroup cols="1"><tbody><row> -<entry align="char"> -<para>This system call opens a named frontend device (/dev/dvb/adapter0/frontend0) +<refentry id="frontend_f_open"> + <refmeta> + <refentrytitle>DVB frontend open()</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>fe-open</refname> + <refpurpose>Open a frontend device</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <fcntl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>open</function></funcdef> + <paramdef>const char *<parameter>device_name</parameter></paramdef> + <paramdef>int <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + + <variablelist> + <varlistentry> + <term><parameter>device_name</parameter></term> + <listitem> + <para>Device to be opened.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>flags</parameter></term> + <listitem> + <para>Open flags. Access can either be + <constant>O_RDWR</constant> or <constant>O_RDONLY</constant>.</para> + <para>Multiple opens are allowed with <constant>O_RDONLY</constant>. In this mode, only query and read ioctls are allowed.</para> + <para>Only one open is allowed in <constant>O_RDWR</constant>. In this mode, all ioctls are allowed.</para> + <para>When the <constant>O_NONBLOCK</constant> flag is given, the system calls may return &EAGAIN; when no data is available or when the device driver is temporarily busy.</para> + <para>Other flags have no effect.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + <refsect1> + <title>Description</title> + <para>This system call opens a named frontend device (<constant>/dev/dvb/adapter?/frontend?</constant>) for subsequent use. Usually the first thing to do after a successful open is to find out the frontend type with <link linkend="FE_GET_INFO">FE_GET_INFO</link>.</para> <para>The device can be opened in read-only mode, which only allows monitoring of @@ -497,1052 +124,146 @@ typedef enum fe_hierarchy { for use in the specified mode. This implies that the corresponding hardware is powered up, and that other front-ends may have been powered down to make that possible.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int open(const char ⋆deviceName, int flags);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>const char - *deviceName</para> -</entry><entry - align="char"> -<para>Name of specific video device.</para> -</entry> - </row><row><entry - align="char"> -<para>int flags</para> -</entry><entry - align="char"> -<para>A bit-wise OR of the following flags:</para> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> -<para>O_RDONLY read-only access</para> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> -<para>O_RDWR read/write access</para> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> -<para>O_NONBLOCK open in non-blocking mode</para> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> -<para>(blocking mode is the default)</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>RETURN VALUE</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>ENODEV</para> -</entry><entry - align="char"> -<para>Device driver not loaded/available.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EBUSY</para> -</entry><entry - align="char"> -<para>Device or resource busy.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid argument.</para> -</entry> - </row></tbody></tgroup></informaltable> -</section> - -<section id="frontend_f_close"> -<title>close()</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> + </refsect1> + + <refsect1> + <title>Return Value</title> + + <para>On success <function>open</function> returns the new file +descriptor. On error -1 is returned, and the <varname>errno</varname> +variable is set appropriately. Possible error codes are:</para> + + <variablelist> + <varlistentry> + <term><errorcode>EACCES</errorcode></term> + <listitem> + <para>The caller has no permission to access the +device.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><errorcode>EBUSY</errorcode></term> + <listitem> + <para>The the device driver is already in use.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><errorcode>ENXIO</errorcode></term> + <listitem> + <para>No device corresponding to this device special file +exists.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><errorcode>ENOMEM</errorcode></term> + <listitem> + <para>Not enough kernel memory was available to complete the +request.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><errorcode>EMFILE</errorcode></term> + <listitem> + <para>The process already has the maximum number of +files open.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><errorcode>ENFILE</errorcode></term> + <listitem> + <para>The limit on the total number of files open on the +system has been reached.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><errorcode>ENODEV</errorcode></term> + <listitem> + <para>The device got removed.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> +</refentry> + +<refentry id="frontend_f_close"> + <refmeta> + <refentrytitle>DVB frontend close()</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>fe-close</refname> + <refpurpose>Close a frontend device</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <unistd.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>close</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fd;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> <para>This system call closes a previously opened front-end device. After closing a front-end device, its corresponding hardware might be powered down automatically.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int close(int fd);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>RETURN VALUE</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row></tbody></tgroup></informaltable> -</section> - -<section id="FE_READ_STATUS"> -<title>FE_READ_STATUS</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns status information about the front-end. This call only - requires read-only access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_READ_STATUS">FE_READ_STATUS</link>, - fe_status_t ⋆status);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> - -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_READ_STATUS">FE_READ_STATUS</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct fe_status_t - *status</para> -</entry><entry - align="char"> -<para>Points to the location where the front-end status word is - to be stored.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>RETURN VALUE</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>status points to invalid address.</para> -</entry> - </row></tbody></tgroup></informaltable> -</section> - -<section id="FE_READ_BER"> -<title>FE_READ_BER</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns the bit error rate for the signal currently - received/demodulated by the front-end. For this command, read-only access to - the device is sufficient.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_READ_BER">FE_READ_BER</link>, - uint32_t ⋆ber);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_READ_BER">FE_READ_BER</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>uint32_t *ber</para> -</entry><entry - align="char"> -<para>The bit error rate is stored into *ber.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_READ_SNR"> -<title>FE_READ_SNR</title> - -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns the signal-to-noise ratio for the signal currently received - by the front-end. For this command, read-only access to the device is sufficient.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_READ_SNR">FE_READ_SNR</link>, uint16_t - ⋆snr);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_READ_SNR">FE_READ_SNR</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>uint16_t *snr</para> -</entry><entry - align="char"> -<para>The signal-to-noise ratio is stored into *snr.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_READ_SIGNAL_STRENGTH"> -<title>FE_READ_SIGNAL_STRENGTH</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns the signal strength value for the signal currently received - by the front-end. For this command, read-only access to the device is sufficient.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl( int fd, int request = - <link linkend="FE_READ_SIGNAL_STRENGTH">FE_READ_SIGNAL_STRENGTH</link>, uint16_t ⋆strength);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_READ_SIGNAL_STRENGTH">FE_READ_SIGNAL_STRENGTH</link> for this - command.</para> -</entry> - </row><row><entry - align="char"> -<para>uint16_t *strength</para> -</entry><entry - align="char"> -<para>The signal strength value is stored into *strength.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_READ_UNCORRECTED_BLOCKS"> -<title>FE_READ_UNCORRECTED_BLOCKS</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns the number of uncorrected blocks detected by the device - driver during its lifetime. For meaningful measurements, the increment in block - count during a specific time interval should be calculated. For this command, - read-only access to the device is sufficient.</para> -</entry> - </row><row><entry - align="char"> -<para>Note that the counter will wrap to zero after its maximum count has been - reached.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl( int fd, int request = - <link linkend="FE_READ_UNCORRECTED_BLOCKS">FE_READ_UNCORRECTED_BLOCKS</link>, uint32_t ⋆ublocks);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_READ_UNCORRECTED_BLOCKS">FE_READ_UNCORRECTED_BLOCKS</link> for this - command.</para> -</entry> - </row><row><entry - align="char"> -<para>uint32_t *ublocks</para> -</entry><entry - align="char"> -<para>The total number of uncorrected blocks seen by the driver - so far.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_SET_FRONTEND"> -<title>FE_SET_FRONTEND</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call starts a tuning operation using specified parameters. The result - of this call will be successful if the parameters were valid and the tuning could - be initiated. The result of the tuning operation in itself, however, will arrive - asynchronously as an event (see documentation for <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> and - FrontendEvent.) If a new <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> operation is initiated before - the previous one was completed, the previous operation will be aborted in favor - of the new one. This command requires read/write access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link>, - struct dvb_frontend_parameters ⋆p);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct - dvb_frontend_parameters - *p</para> -</entry><entry - align="char"> -<para>Points to parameters for tuning operation.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Maximum supported symbol rate reached.</para> -</entry> -</row></tbody></tgroup></informaltable> -</section> - -<section id="FE_GET_FRONTEND"> -<title>FE_GET_FRONTEND</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call queries the currently effective frontend parameters. For this - command, read-only access to the device is sufficient.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_GET_FRONTEND">FE_GET_FRONTEND</link>, - struct dvb_frontend_parameters ⋆p);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct - dvb_frontend_parameters - *p</para> -</entry><entry - align="char"> -<para>Points to parameters for tuning operation.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Maximum supported symbol rate reached.</para> -</entry> - </row></tbody></tgroup></informaltable> - -</section> - -<section id="FE_GET_EVENT"> -<title>FE_GET_EVENT</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns a frontend event if available. If an event is not - available, the behavior depends on whether the device is in blocking or - non-blocking mode. In the latter case, the call fails immediately with errno - set to EWOULDBLOCK. In the former case, the call blocks until an event - becomes available.</para> -</entry> - </row><row><entry - align="char"> -<para>The standard Linux poll() and/or select() system calls can be used with the - device file descriptor to watch for new events. For select(), the file descriptor - should be included in the exceptfds argument, and for poll(), POLLPRI should - be specified as the wake-up condition. Since the event queue allocated is - rather small (room for 8 events), the queue must be serviced regularly to avoid - overflow. If an overflow happens, the oldest event is discarded from the queue, - and an error (EOVERFLOW) occurs the next time the queue is read. After - reporting the error condition in this fashion, subsequent - <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> - calls will return events from the queue as usual.</para> -</entry> - </row><row><entry - align="char"> -<para>For the sake of implementation simplicity, this command requires read/write - access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = QPSK_GET_EVENT, - struct dvb_frontend_event ⋆ev);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct - dvb_frontend_event - *ev</para> -</entry><entry - align="char"> -<para>Points to the location where the event,</para> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> -<para>if any, is to be stored.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EWOULDBLOCK</para> -</entry><entry - align="char"> -<para>There is no event pending, and the device is in - non-blocking mode.</para> -</entry> - </row><row><entry - align="char"> -<para>EOVERFLOW</para> -</entry><entry - align="char"> -<para>Overflow in event queue - one or more events were lost.</para> -</entry> -</row></tbody></tgroup></informaltable> -</section> - -<section id="FE_GET_INFO"> -<title>FE_GET_INFO</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns information about the front-end. This call only requires - read-only access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> - -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para> int ioctl(int fd, int request = <link linkend="FE_GET_INFO">FE_GET_INFO</link>, struct - dvb_frontend_info ⋆info);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> - -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_GET_INFO">FE_GET_INFO</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct - dvb_frontend_info - *info</para> -</entry><entry - align="char"> -<para>Points to the location where the front-end information is - to be stored.</para> -</entry> - </row></tbody></tgroup></informaltable> -&return-value-dvb; -</section> - -<section id="FE_DISEQC_RESET_OVERLOAD"> -<title>FE_DISEQC_RESET_OVERLOAD</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>If the bus has been automatically powered off due to power overload, this ioctl - call restores the power to the bus. The call requires read/write access to the - device. This call has no effect if the device is manually powered off. Not all - DVB adapters support this ioctl.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = - <link linkend="FE_DISEQC_RESET_OVERLOAD">FE_DISEQC_RESET_OVERLOAD</link>);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_DISEQC_RESET_OVERLOAD">FE_DISEQC_RESET_OVERLOAD</link> for this - command.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_DISEQC_SEND_MASTER_CMD"> -<title>FE_DISEQC_SEND_MASTER_CMD</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call is used to send a a DiSEqC command.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = - <link linkend="FE_DISEQC_SEND_MASTER_CMD">FE_DISEQC_SEND_MASTER_CMD</link>, struct - dvb_diseqc_master_cmd ⋆cmd);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_DISEQC_SEND_MASTER_CMD">FE_DISEQC_SEND_MASTER_CMD</link> for this - command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct - dvb_diseqc_master_cmd - *cmd</para> -</entry><entry - align="char"> -<para>Pointer to the command to be transmitted.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; +</refsect1> + <refsect1> + <title>Return Value</title> + + <para>The function returns <returnvalue>0</returnvalue> on +success, <returnvalue>-1</returnvalue> on failure and the +<varname>errno</varname> is set appropriately. Possible error +codes:</para> + + <variablelist> + <varlistentry> + <term><errorcode>EBADF</errorcode></term> + <listitem> + <para><parameter>fd</parameter> is not a valid open file +descriptor.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> +</refentry> + +&sub-fe-get-info; +&sub-fe-read-status; +&sub-fe-get-property; +&sub-fe-diseqc-reset-overload; +&sub-fe-diseqc-send-master-cmd; +&sub-fe-diseqc-recv-slave-reply; +&sub-fe-diseqc-send-burst; +&sub-fe-set-tone; +&sub-fe-set-voltage; +&sub-fe-enable-high-lnb-voltage; +&sub-fe-set-frontend-tune-mode; + +</section> + +<section id="frontend_legacy_dvbv3_api"> +<title>DVB Frontend legacy API (a. k. a. DVBv3)</title> +<para>The usage of this API is deprecated, as it doesn't support all digital + TV standards, doesn't provide good statistics measurements and provides + incomplete information. This is kept only to support legacy applications.</para> + +&sub-frontend_legacy_api; </section> - -<section id="FE_DISEQC_RECV_SLAVE_REPLY"> -<title>FE_DISEQC_RECV_SLAVE_REPLY</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call is used to receive reply to a DiSEqC 2.0 command.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = - <link linkend="FE_DISEQC_RECV_SLAVE_REPLY">FE_DISEQC_RECV_SLAVE_REPLY</link>, struct - dvb_diseqc_slave_reply ⋆reply);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_DISEQC_RECV_SLAVE_REPLY">FE_DISEQC_RECV_SLAVE_REPLY</link> for this - command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct - dvb_diseqc_slave_reply - *reply</para> -</entry><entry - align="char"> -<para>Pointer to the command to be received.</para> -</entry> - </row></tbody></tgroup></informaltable> -&return-value-dvb; -</section> - -<section id="FE_DISEQC_SEND_BURST"> -<title>FE_DISEQC_SEND_BURST</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call is used to send a 22KHz tone burst.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = - <link linkend="FE_DISEQC_SEND_BURST">FE_DISEQC_SEND_BURST</link>, fe_sec_mini_cmd_t burst);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_DISEQC_SEND_BURST">FE_DISEQC_SEND_BURST</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>fe_sec_mini_cmd_t - burst</para> -</entry><entry - align="char"> -<para>burst A or B.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_SET_TONE"> -<title>FE_SET_TONE</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This call is used to set the generation of the continuous 22kHz tone. This call - requires read/write permissions.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_SET_TONE">FE_SET_TONE</link>, - fe_sec_tone_mode_t tone);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_TONE">FE_SET_TONE</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>fe_sec_tone_mode_t - tone</para> -</entry><entry - align="char"> -<para>The requested tone generation mode (on/off).</para> -</entry> - </row></tbody></tgroup></informaltable> -&return-value-dvb; -</section> - -<section id="FE_SET_VOLTAGE"> -<title>FE_SET_VOLTAGE</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This call is used to set the bus voltage. This call requires read/write - permissions.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_SET_VOLTAGE">FE_SET_VOLTAGE</link>, - fe_sec_voltage_t voltage);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_VOLTAGE">FE_SET_VOLTAGE</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>fe_sec_voltage_t - voltage</para> -</entry><entry - align="char"> -<para>The requested bus voltage.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_ENABLE_HIGH_LNB_VOLTAGE"> -<title>FE_ENABLE_HIGH_LNB_VOLTAGE</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>If high != 0 enables slightly higher voltages instead of 13/18V (to compensate - for long cables). This call requires read/write permissions. Not all DVB - adapters support this ioctl.</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = - <link linkend="FE_ENABLE_HIGH_LNB_VOLTAGE">FE_ENABLE_HIGH_LNB_VOLTAGE</link>, int high);</para> -</entry> - </row></tbody></tgroup></informaltable> - -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_VOLTAGE">FE_SET_VOLTAGE</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>int high</para> -</entry><entry - align="char"> -<para>The requested bus voltage.</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_SET_FRONTEND_TUNE_MODE"> -<title>FE_SET_FRONTEND_TUNE_MODE</title> -<para>DESCRIPTION</para> -<informaltable><tgroup cols="1"><tbody><row> -<entry align="char"> -<para>Allow setting tuner mode flags to the frontend.</para> -</entry> -</row></tbody></tgroup></informaltable> - -<para>SYNOPSIS</para> -<informaltable><tgroup cols="1"><tbody><row> -<entry align="char"> -<para>int ioctl(int fd, int request = -<link linkend="FE_SET_FRONTEND_TUNE_MODE">FE_SET_FRONTEND_TUNE_MODE</link>, unsigned int flags);</para> -</entry> -</row></tbody></tgroup></informaltable> - -<para>PARAMETERS</para> -<informaltable><tgroup cols="2"><tbody><row> -<entry align="char"> - <para>unsigned int flags</para> -</entry> -<entry align="char"> -<para> -FE_TUNE_MODE_ONESHOT When set, this flag will disable any zigzagging or other "normal" tuning behaviour. Additionally, there will be no automatic monitoring of the lock status, and hence no frontend events will be generated. If a frontend device is closed, this flag will be automatically turned off when the device is reopened read-write. -</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -<section id="FE_DISHNETWORK_SEND_LEGACY_CMD"> - <title>FE_DISHNETWORK_SEND_LEGACY_CMD</title> -<para>DESCRIPTION</para> -<informaltable><tgroup cols="1"><tbody><row> -<entry align="char"> -<para>WARNING: This is a very obscure legacy command, used only at stv0299 driver. Should not be used on newer drivers.</para> -<para>It provides a non-standard method for selecting Diseqc voltage on the frontend, for Dish Network legacy switches.</para> -<para>As support for this ioctl were added in 2004, this means that such dishes were already legacy in 2004.</para> -</entry> -</row></tbody></tgroup></informaltable> - -<para>SYNOPSIS</para> -<informaltable><tgroup cols="1"><tbody><row> -<entry align="char"> -<para>int ioctl(int fd, int request = - <link linkend="FE_DISHNETWORK_SEND_LEGACY_CMD">FE_DISHNETWORK_SEND_LEGACY_CMD</link>, unsigned long cmd);</para> -</entry> -</row></tbody></tgroup></informaltable> - -<para>PARAMETERS</para> -<informaltable><tgroup cols="2"><tbody><row> -<entry align="char"> - <para>unsigned long cmd</para> -</entry> -<entry align="char"> -<para> -sends the specified raw cmd to the dish via DISEqC. -</para> -</entry> - </row></tbody></tgroup></informaltable> - -&return-value-dvb; -</section> - -</section> - -&sub-dvbproperty; diff --git a/Documentation/DocBook/media/dvb/frontend_legacy_api.xml b/Documentation/DocBook/media/dvb/frontend_legacy_api.xml new file mode 100644 index 000000000000..8fadf3a4ba44 --- /dev/null +++ b/Documentation/DocBook/media/dvb/frontend_legacy_api.xml @@ -0,0 +1,654 @@ +<section id="frontend_legacy_types"> +<title>Frontend Legacy Data Types</title> + +<section id="fe-type-t"> +<title>Frontend type</title> + +<para>For historical reasons, frontend types are named by the type of modulation + used in transmission. The fontend types are given by fe_type_t type, defined as:</para> + +<table pgwide="1" frame="none" id="fe-type"> +<title>Frontend types</title> +<tgroup cols="3"> + &cs-def; + <thead> + <row> + <entry>fe_type</entry> + <entry>Description</entry> + <entry><link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> equivalent type</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="FE-QPSK"><constant>FE_QPSK</constant></entry> + <entry>For DVB-S standard</entry> + <entry><constant>SYS_DVBS</constant></entry> + </row> + <row> + <entry id="FE-QAM"><constant>FE_QAM</constant></entry> + <entry>For DVB-C annex A standard</entry> + <entry><constant>SYS_DVBC_ANNEX_A</constant></entry> + </row> + <row> + <entry id="FE-OFDM"><constant>FE_OFDM</constant></entry> + <entry>For DVB-T standard</entry> + <entry><constant>SYS_DVBT</constant></entry> + </row> + <row> + <entry id="FE-ATSC"><constant>FE_ATSC</constant></entry> + <entry>For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used in US.</entry> + <entry><constant>SYS_ATSC</constant> (terrestrial) or <constant>SYS_DVBC_ANNEX_B</constant> (cable)</entry> + </row> +</tbody></tgroup></table> + +<para>Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described at the above, as they're +supported via the new <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> ioctl's, using the <link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> parameter. +</para> + +<para>In the old days, &dvb-frontend-info; used to contain + <constant>fe_type_t</constant> field to indicate the delivery systems, + filled with either FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC. While this is + still filled to keep backward compatibility, the usage of this + field is deprecated, as it can report just one delivery system, but some + devices support multiple delivery systems. Please use + <link linkend="DTV-ENUM-DELSYS">DTV_ENUM_DELSYS</link> instead. +</para> +<para>On devices that support multiple delivery systems, + &dvb-frontend-info;::<constant>fe_type_t</constant> is filled with the + currently standard, as selected by the last call to + <link linkend="FE_GET_PROPERTY">FE_SET_PROPERTY</link> + using the &DTV-DELIVERY-SYSTEM; property.</para> +</section> + +<section id="fe-bandwidth-t"> +<title>Frontend bandwidth</title> + +<table pgwide="1" frame="none" id="fe-bandwidth"> + <title>enum fe_bandwidth</title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="BANDWIDTH-AUTO"><constant>BANDWIDTH_AUTO</constant></entry> + <entry>Autodetect bandwidth (if supported)</entry> + </row><row> + <entry id="BANDWIDTH-1-712-MHZ"><constant>BANDWIDTH_1_712_MHZ</constant></entry> + <entry>1.712 MHz</entry> + </row><row> + <entry id="BANDWIDTH-5-MHZ"><constant>BANDWIDTH_5_MHZ</constant></entry> + <entry>5 MHz</entry> + </row><row> + <entry id="BANDWIDTH-6-MHZ"><constant>BANDWIDTH_6_MHZ</constant></entry> + <entry>6 MHz</entry> + </row><row> + <entry id="BANDWIDTH-7-MHZ"><constant>BANDWIDTH_7_MHZ</constant></entry> + <entry>7 MHz</entry> + </row><row> + <entry id="BANDWIDTH-8-MHZ"><constant>BANDWIDTH_8_MHZ</constant></entry> + <entry>8 MHz</entry> + </row><row> + <entry id="BANDWIDTH-10-MHZ"><constant>BANDWIDTH_10_MHZ</constant></entry> + <entry>10 MHz</entry> + </row> + </tbody> + </tgroup> +</table> + +</section> + +<section id="dvb-frontend-parameters"> +<title>frontend parameters</title> +<para>The kind of parameters passed to the frontend device for tuning depend on +the kind of hardware you are using.</para> +<para>The struct <constant>dvb_frontend_parameters</constant> uses an +union with specific per-system parameters. However, as newer delivery systems +required more data, the structure size weren't enough to fit, and just +extending its size would break the existing applications. So, those parameters +were replaced by the usage of <link linkend="FE_GET_PROPERTY"> +<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> ioctl's. The +new API is flexible enough to add new parameters to existing delivery systems, +and to add newer delivery systems.</para> +<para>So, newer applications should use <link linkend="FE_GET_PROPERTY"> +<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> instead, in +order to be able to support the newer System Delivery like DVB-S2, DVB-T2, +DVB-C2, ISDB, etc.</para> +<para>All kinds of parameters are combined as an union in the FrontendParameters structure: +<programlisting> +struct dvb_frontend_parameters { + uint32_t frequency; /⋆ (absolute) frequency in Hz for QAM/OFDM ⋆/ + /⋆ intermediate frequency in kHz for QPSK ⋆/ + &fe-spectral-inversion-t; inversion; + union { + struct dvb_qpsk_parameters qpsk; + struct dvb_qam_parameters qam; + struct dvb_ofdm_parameters ofdm; + struct dvb_vsb_parameters vsb; + } u; +}; +</programlisting></para> +<para>In the case of QPSK frontends the <constant>frequency</constant> field specifies the intermediate +frequency, i.e. the offset which is effectively added to the local oscillator frequency (LOF) of +the LNB. The intermediate frequency has to be specified in units of kHz. For QAM and +OFDM frontends the <constant>frequency</constant> specifies the absolute frequency and is given in Hz. +</para> + +<section id="dvb-qpsk-parameters"> +<title>QPSK parameters</title> +<para>For satellite QPSK frontends you have to use the <constant>dvb_qpsk_parameters</constant> structure:</para> +<programlisting> + struct dvb_qpsk_parameters { + uint32_t symbol_rate; /⋆ symbol rate in Symbols per second ⋆/ + &fe-code-rate-t; fec_inner; /⋆ forward error correction (see above) ⋆/ + }; +</programlisting> +</section> + +<section id="dvb-qam-parameters"> +<title>QAM parameters</title> +<para>for cable QAM frontend you use the <constant>dvb_qam_parameters</constant> structure:</para> +<programlisting> + struct dvb_qam_parameters { + uint32_t symbol_rate; /⋆ symbol rate in Symbols per second ⋆/ + &fe-code-rate-t; fec_inner; /⋆ forward error correction (see above) ⋆/ + &fe-modulation-t; modulation; /⋆ modulation type (see above) ⋆/ + }; +</programlisting> +</section> + +<section id="dvb-vsb-parameters"> +<title>VSB parameters</title> +<para>ATSC frontends are supported by the <constant>dvb_vsb_parameters</constant> structure:</para> +<programlisting> +struct dvb_vsb_parameters { + &fe-modulation-t; modulation; /⋆ modulation type (see above) ⋆/ +}; +</programlisting> +</section> + +<section id="dvb-ofdm-parameters"> +<title>OFDM parameters</title> +<para>DVB-T frontends are supported by the <constant>dvb_ofdm_parameters</constant> structure:</para> +<programlisting> + struct dvb_ofdm_parameters { + &fe-bandwidth-t; bandwidth; + &fe-code-rate-t; code_rate_HP; /⋆ high priority stream code rate ⋆/ + &fe-code-rate-t; code_rate_LP; /⋆ low priority stream code rate ⋆/ + &fe-modulation-t; constellation; /⋆ modulation type (see above) ⋆/ + &fe-transmit-mode-t; transmission_mode; + &fe-guard-interval-t; guard_interval; + &fe-hierarchy-t; hierarchy_information; + }; +</programlisting> +</section> +</section> + +<section id="dvb-frontend-event"> +<title>frontend events</title> + <programlisting> + struct dvb_frontend_event { + fe_status_t status; + struct dvb_frontend_parameters parameters; + }; +</programlisting> + </section> +</section> + +<section id="frontend_legacy_fcalls"> +<title>Frontend Legacy Function Calls</title> + +<para>Those functions are defined at DVB version 3. The support is kept in + the kernel due to compatibility issues only. Their usage is strongly + not recommended</para> + +<section id="FE_READ_BER"> +<title>FE_READ_BER</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call returns the bit error rate for the signal currently + received/demodulated by the front-end. For this command, read-only access to + the device is sufficient.</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = <link linkend="FE_READ_BER">FE_READ_BER</link>, + uint32_t ⋆ber);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_READ_BER">FE_READ_BER</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>uint32_t *ber</para> +</entry><entry + align="char"> +<para>The bit error rate is stored into *ber.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +</section> + +<section id="FE_READ_SNR"> +<title>FE_READ_SNR</title> + +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call returns the signal-to-noise ratio for the signal currently received + by the front-end. For this command, read-only access to the device is sufficient.</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = <link linkend="FE_READ_SNR">FE_READ_SNR</link>, uint16_t + ⋆snr);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_READ_SNR">FE_READ_SNR</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>uint16_t *snr</para> +</entry><entry + align="char"> +<para>The signal-to-noise ratio is stored into *snr.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +</section> + +<section id="FE_READ_SIGNAL_STRENGTH"> +<title>FE_READ_SIGNAL_STRENGTH</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call returns the signal strength value for the signal currently received + by the front-end. For this command, read-only access to the device is sufficient.</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl( int fd, int request = + <link linkend="FE_READ_SIGNAL_STRENGTH">FE_READ_SIGNAL_STRENGTH</link>, uint16_t ⋆strength);</para> +</entry> + </row></tbody></tgroup></informaltable> + +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_READ_SIGNAL_STRENGTH">FE_READ_SIGNAL_STRENGTH</link> for this + command.</para> +</entry> + </row><row><entry + align="char"> +<para>uint16_t *strength</para> +</entry><entry + align="char"> +<para>The signal strength value is stored into *strength.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +</section> + +<section id="FE_READ_UNCORRECTED_BLOCKS"> +<title>FE_READ_UNCORRECTED_BLOCKS</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call returns the number of uncorrected blocks detected by the device + driver during its lifetime. For meaningful measurements, the increment in block + count during a specific time interval should be calculated. For this command, + read-only access to the device is sufficient.</para> +</entry> + </row><row><entry + align="char"> +<para>Note that the counter will wrap to zero after its maximum count has been + reached.</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl( int fd, int request = + <link linkend="FE_READ_UNCORRECTED_BLOCKS">FE_READ_UNCORRECTED_BLOCKS</link>, uint32_t ⋆ublocks);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_READ_UNCORRECTED_BLOCKS">FE_READ_UNCORRECTED_BLOCKS</link> for this + command.</para> +</entry> + </row><row><entry + align="char"> +<para>uint32_t *ublocks</para> +</entry><entry + align="char"> +<para>The total number of uncorrected blocks seen by the driver + so far.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +</section> + +<section id="FE_SET_FRONTEND"> +<title>FE_SET_FRONTEND</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call starts a tuning operation using specified parameters. The result + of this call will be successful if the parameters were valid and the tuning could + be initiated. The result of the tuning operation in itself, however, will arrive + asynchronously as an event (see documentation for <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> and + FrontendEvent.) If a new <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> operation is initiated before + the previous one was completed, the previous operation will be aborted in favor + of the new one. This command requires read/write access to the device.</para> +</entry> + </row></tbody></tgroup></informaltable> + +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link>, + struct dvb_frontend_parameters ⋆p);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>struct + dvb_frontend_parameters + *p</para> +</entry><entry + align="char"> +<para>Points to parameters for tuning operation.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>EINVAL</para> +</entry><entry + align="char"> +<para>Maximum supported symbol rate reached.</para> +</entry> +</row></tbody></tgroup></informaltable> +</section> + +<section id="FE_GET_FRONTEND"> +<title>FE_GET_FRONTEND</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call queries the currently effective frontend parameters. For this + command, read-only access to the device is sufficient.</para> +</entry> + </row></tbody></tgroup></informaltable> + +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = <link linkend="FE_GET_FRONTEND">FE_GET_FRONTEND</link>, + struct dvb_frontend_parameters ⋆p);</para> +</entry> + </row></tbody></tgroup></informaltable> + +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>struct + dvb_frontend_parameters + *p</para> +</entry><entry + align="char"> +<para>Points to parameters for tuning operation.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>EINVAL</para> +</entry><entry + align="char"> +<para>Maximum supported symbol rate reached.</para> +</entry> + </row></tbody></tgroup></informaltable> + +</section> + +<section id="FE_GET_EVENT"> +<title>FE_GET_EVENT</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call returns a frontend event if available. If an event is not + available, the behavior depends on whether the device is in blocking or + non-blocking mode. In the latter case, the call fails immediately with errno + set to EWOULDBLOCK. In the former case, the call blocks until an event + becomes available.</para> +</entry> + </row><row><entry + align="char"> +<para>The standard Linux poll() and/or select() system calls can be used with the + device file descriptor to watch for new events. For select(), the file descriptor + should be included in the exceptfds argument, and for poll(), POLLPRI should + be specified as the wake-up condition. Since the event queue allocated is + rather small (room for 8 events), the queue must be serviced regularly to avoid + overflow. If an overflow happens, the oldest event is discarded from the queue, + and an error (EOVERFLOW) occurs the next time the queue is read. After + reporting the error condition in this fashion, subsequent + <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> + calls will return events from the queue as usual.</para> +</entry> + </row><row><entry + align="char"> +<para>For the sake of implementation simplicity, this command requires read/write + access to the device.</para> +</entry> + </row></tbody></tgroup></informaltable> + +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = QPSK_GET_EVENT, + struct dvb_frontend_event ⋆ev);</para> +</entry> + </row></tbody></tgroup></informaltable> + +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int request</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>struct + dvb_frontend_event + *ev</para> +</entry><entry + align="char"> +<para>Points to the location where the event,</para> +</entry> + </row><row><entry + align="char"> +</entry><entry + align="char"> +<para>if any, is to be stored.</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +<informaltable><tgroup cols="2"><tbody><row><entry + align="char"> +<para>EWOULDBLOCK</para> +</entry><entry + align="char"> +<para>There is no event pending, and the device is in + non-blocking mode.</para> +</entry> + </row><row><entry + align="char"> +<para>EOVERFLOW</para> +</entry><entry + align="char"> +<para>Overflow in event queue - one or more events were lost.</para> +</entry> +</row></tbody></tgroup></informaltable> +</section> + +<section id="FE_DISHNETWORK_SEND_LEGACY_CMD"> + <title>FE_DISHNETWORK_SEND_LEGACY_CMD</title> +<para>DESCRIPTION</para> +<informaltable><tgroup cols="1"><tbody><row> +<entry align="char"> +<para>WARNING: This is a very obscure legacy command, used only at stv0299 driver. Should not be used on newer drivers.</para> +<para>It provides a non-standard method for selecting Diseqc voltage on the frontend, for Dish Network legacy switches.</para> +<para>As support for this ioctl were added in 2004, this means that such dishes were already legacy in 2004.</para> +</entry> +</row></tbody></tgroup></informaltable> + +<para>SYNOPSIS</para> +<informaltable><tgroup cols="1"><tbody><row> +<entry align="char"> +<para>int ioctl(int fd, int request = + <link linkend="FE_DISHNETWORK_SEND_LEGACY_CMD">FE_DISHNETWORK_SEND_LEGACY_CMD</link>, unsigned long cmd);</para> +</entry> +</row></tbody></tgroup></informaltable> + +<para>PARAMETERS</para> +<informaltable><tgroup cols="2"><tbody><row> +<entry align="char"> + <para>unsigned long cmd</para> +</entry> +<entry align="char"> +<para> +sends the specified raw cmd to the dish via DISEqC. +</para> +</entry> + </row></tbody></tgroup></informaltable> + +&return-value-dvb; +</section> + +</section> diff --git a/Documentation/DocBook/media/dvb/intro.xml b/Documentation/DocBook/media/dvb/intro.xml index 2048b53d19b9..bcc72c216402 100644 --- a/Documentation/DocBook/media/dvb/intro.xml +++ b/Documentation/DocBook/media/dvb/intro.xml @@ -129,41 +129,41 @@ hardware. It can depend on the individual security requirements of the platform, if and how many of the CA functions are made available to the application through this device.</para> -<para>All devices can be found in the <emphasis role="tt">/dev</emphasis> -tree under <emphasis role="tt">/dev/dvb</emphasis>. The individual devices +<para>All devices can be found in the <constant>/dev</constant> +tree under <constant>/dev/dvb</constant>. The individual devices are called:</para> <itemizedlist> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/audioM</emphasis>,</para> +<para><constant>/dev/dvb/adapterN/audioM</constant>,</para> </listitem> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/videoM</emphasis>,</para> +<para><constant>/dev/dvb/adapterN/videoM</constant>,</para> </listitem> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/frontendM</emphasis>,</para> +<para><constant>/dev/dvb/adapterN/frontendM</constant>,</para> </listitem> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/netM</emphasis>,</para> +<para><constant>/dev/dvb/adapterN/netM</constant>,</para> </listitem> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/demuxM</emphasis>,</para> +<para><constant>/dev/dvb/adapterN/demuxM</constant>,</para> </listitem> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/dvrM</emphasis>,</para> +<para><constant>/dev/dvb/adapterN/dvrM</constant>,</para> </listitem> <listitem> -<para><emphasis role="tt">/dev/dvb/adapterN/caM</emphasis>,</para></listitem></itemizedlist> +<para><constant>/dev/dvb/adapterN/caM</constant>,</para></listitem></itemizedlist> <para>where N enumerates the DVB PCI cards in a system starting from 0, and M enumerates the devices of each type within each -adapter, starting from 0, too. We will omit the “<emphasis -role="tt">/dev/dvb/adapterN/</emphasis>” in the further dicussion +adapter, starting from 0, too. We will omit the “ +<constant>/dev/dvb/adapterN/</constant>” in the further dicussion of these devices. The naming scheme for the devices is the same wheter devfs is used or not.</para> @@ -202,10 +202,10 @@ a partial path like:</para> </programlisting> <para>To enable applications to support different API version, an -additional include file <emphasis -role="tt">linux/dvb/version.h</emphasis> exists, which defines the -constant <emphasis role="tt">DVB_API_VERSION</emphasis>. This document -describes <emphasis role="tt">DVB_API_VERSION 5.8</emphasis>. +additional include file +<constant>linux/dvb/version.h</constant> exists, which defines the +constant <constant>DVB_API_VERSION</constant>. This document +describes <constant>DVB_API_VERSION 5.10</constant>. </para> </section> diff --git a/Documentation/DocBook/media/dvb/kdapi.xml b/Documentation/DocBook/media/dvb/kdapi.xml index 6c11ec52cbee..68bcd33a82c3 100644 --- a/Documentation/DocBook/media/dvb/kdapi.xml +++ b/Documentation/DocBook/media/dvb/kdapi.xml @@ -1,8 +1,8 @@ <title>Kernel Demux API</title> <para>The kernel demux API defines a driver-internal interface for registering low-level, hardware specific driver to a hardware independent demux layer. It is only of interest for -DVB device driver writers. The header file for this API is named <emphasis role="tt">demux.h</emphasis> and located in -<emphasis role="tt">drivers/media/dvb-core</emphasis>. +DVB device driver writers. The header file for this API is named <constant>demux.h</constant> and located in +<constant>">drivers/media/dvb-core</constant>. </para> <para>Maintainer note: This section must be reviewed. It is probably out of date. </para> diff --git a/Documentation/DocBook/media/dvb/net.xml b/Documentation/DocBook/media/dvb/net.xml index a193e86941b5..d2e44b7e07df 100644 --- a/Documentation/DocBook/media/dvb/net.xml +++ b/Documentation/DocBook/media/dvb/net.xml @@ -1,156 +1,238 @@ <title>DVB Network API</title> -<para>The DVB net device enables feeding of MPE (multi protocol encapsulation) packets -received via DVB into the Linux network protocol stack, e.g. for internet via satellite -applications. It can be accessed through <emphasis role="tt">/dev/dvb/adapter0/net0</emphasis>. Data types and -and ioctl definitions can be accessed by including <emphasis role="tt">linux/dvb/net.h</emphasis> in your -application. -</para> -<section id="dvb_net_types"> -<title>DVB Net Data Types</title> - -<section id="dvb-net-if"> -<title>struct dvb_net_if</title> -<programlisting> -struct dvb_net_if { - __u16 pid; - __u16 if_num; - __u8 feedtype; -#define DVB_NET_FEEDTYPE_MPE 0 /⋆ multi protocol encapsulation ⋆/ -#define DVB_NET_FEEDTYPE_ULE 1 /⋆ ultra lightweight encapsulation ⋆/ -}; -</programlisting> -</section> +<para>The DVB net device controls the mapping of data packages that are + part of a transport stream to be mapped into a virtual network interface, + visible through the standard Linux network protocol stack.</para> +<para>Currently, two encapsulations are supported:</para> +<itemizedlist> + <listitem><para><ulink url="http://en.wikipedia.org/wiki/Multiprotocol_Encapsulation"> + Multi Protocol Encapsulation (MPE)</ulink></para></listitem> + <listitem><para><ulink url="http://en.wikipedia.org/wiki/Unidirectional_Lightweight_Encapsulation"> + Ultra Lightweight Encapsulation (ULE)</ulink></para></listitem> +</itemizedlist> + +<para>In order to create the Linux virtual network interfaces, an application + needs to tell to the Kernel what are the PIDs and the encapsulation types + that are present on the transport stream. This is done through + <constant>/dev/dvb/adapter?/net?</constant> device node. + The data will be available via virtual <constant>dvb?_?</constant> + network interfaces, and will be controled/routed via the standard + ip tools (like ip, route, netstat, ifconfig, etc).</para> +<para> Data types and and ioctl definitions are defined via + <constant>linux/dvb/net.h</constant> header.</para> -</section> <section id="net_fcalls"> <title>DVB net Function Calls</title> -<para>To be written… -</para> - -<section id="NET_ADD_IF" -role="subsection"><title>NET_ADD_IF</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl is undocumented. Documentation is welcome.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(fd, int request = NET_ADD_IF, - struct dvb_net_if *if);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals NET_ADD_IF for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct dvb_net_if *if -</para> -</entry><entry - align="char"> -<para>Undocumented.</para> -</entry> - </row></tbody></tgroup></informaltable> + + +<refentry id="NET_ADD_IF"> + <refmeta> + <refentrytitle>ioctl NET_ADD_IF</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>NET_ADD_IF</refname> + <refpurpose>Creates a new network interface for a given Packet ID.</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 dvb_net_if *<parameter>net_if</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_TONE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>net_if</parameter></term> + <listitem> + <para>pointer to &dvb-net-if;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + +<para>The NET_ADD_IF ioctl system call selects the Packet ID (PID) that + contains a TCP/IP traffic, the type of encapsulation to be used (MPE or ULE) + and the interface number for the new interface to be created. When the + system call successfully returns, a new virtual network interface is created.</para> +<para>The &dvb-net-if;::ifnum field will be filled with the number of the + created interface.</para> + &return-value-dvb; -</section> +</refsect1> + +<refsect1 id="dvb-net-if-t"> +<title>struct <structname>dvb_net_if</structname> description</title> + +<table pgwide="1" frame="none" id="dvb-net-if"> + <title>struct <structname>dvb_net_if</structname></title> + <tgroup cols="2"> + &cs-def; + <thead> + <row> + <entry>ID</entry> + <entry>Description</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry align="char">pid</entry> + <entry align="char">Packet ID (PID) of the MPEG-TS that contains + data</entry> + </row><row> + <entry align="char">ifnum</entry> + <entry align="char">number of the DVB interface.</entry> + </row><row> + <entry align="char">feedtype</entry> + <entry align="char">Encapsulation type of the feed. It can be: + <constant>DVB_NET_FEEDTYPE_MPE</constant> for MPE encoding + or + <constant>DVB_NET_FEEDTYPE_ULE</constant> for ULE encoding. + </entry> + </row> + </tbody> + </tgroup> +</table> +</refsect1> +</refentry> + +<refentry id="NET_REMOVE_IF"> + <refmeta> + <refentrytitle>ioctl NET_REMOVE_IF</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>NET_REMOVE_IF</refname> + <refpurpose>Removes a network interface.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>int <parameter>ifnum</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_TONE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>net_if</parameter></term> + <listitem> + <para>number of the interface to be removed</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + +<para>The NET_REMOVE_IF ioctl deletes an interface previously created + via &NET-ADD-IF;.</para> -<section id="NET_REMOVE_IF" -role="subsection"><title>NET_REMOVE_IF</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl is undocumented. Documentation is welcome.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(fd, int request = NET_REMOVE_IF); -</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals NET_REMOVE_IF for this command.</para> -</entry> - </row></tbody></tgroup></informaltable> &return-value-dvb; -</section> +</refsect1> +</refentry> + + +<refentry id="NET_GET_IF"> + <refmeta> + <refentrytitle>ioctl NET_GET_IF</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>NET_GET_IF</refname> + <refpurpose>Read the configuration data of an interface created via + &NET-ADD-IF;.</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 dvb_net_if *<parameter>net_if</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fe_fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>FE_SET_TONE</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>net_if</parameter></term> + <listitem> + <para>pointer to &dvb-net-if;</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + +<para>The NET_GET_IF ioctl uses the interface number given by the + &dvb-net-if;::ifnum field and fills the content of &dvb-net-if; with + the packet ID and encapsulation type used on such interface. If the + interface was not created yet with &NET-ADD-IF;, it will return -1 and + fill the <constant>errno</constant> with <constant>EINVAL</constant> + error code.</para> -<section id="NET_GET_IF" -role="subsection"><title>NET_GET_IF</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl is undocumented. Documentation is welcome.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(fd, int request = NET_GET_IF, - struct dvb_net_if *if);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int request</para> -</entry><entry - align="char"> -<para>Equals NET_GET_IF for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct dvb_net_if *if -</para> -</entry><entry - align="char"> -<para>Undocumented.</para> -</entry> - </row></tbody></tgroup></informaltable> &return-value-dvb; -</section> +</refsect1> +</refentry> </section> diff --git a/Documentation/DocBook/media/dvb/video.xml b/Documentation/DocBook/media/dvb/video.xml index 3ea1ca7e785e..71547fcd7ba0 100644 --- a/Documentation/DocBook/media/dvb/video.xml +++ b/Documentation/DocBook/media/dvb/video.xml @@ -1,12 +1,12 @@ <title>DVB Video Device</title> <para>The DVB video device controls the MPEG2 video decoder of the DVB hardware. It -can be accessed through <emphasis role="tt">/dev/dvb/adapter0/video0</emphasis>. Data types and and -ioctl definitions can be accessed by including <emphasis role="tt">linux/dvb/video.h</emphasis> in your +can be accessed through <emphasis role="bold">/dev/dvb/adapter0/video0</emphasis>. Data types and and +ioctl definitions can be accessed by including <emphasis role="bold">linux/dvb/video.h</emphasis> in your application. </para> <para>Note that the DVB video device only controls decoding of the MPEG video stream, not its presentation on the TV or computer screen. On PCs this is typically handled by an -associated video4linux device, e.g. <emphasis role="tt">/dev/video</emphasis>, which allows scaling and defining output +associated video4linux device, e.g. <emphasis role="bold">/dev/video</emphasis>, which allows scaling and defining output windows. </para> <para>Some DVB cards don’t have their own MPEG decoder, which results in the omission of @@ -24,7 +24,7 @@ have been created to replace that functionality.</para> <section id="video-format-t"> <title>video_format_t</title> -<para>The <emphasis role="tt">video_format_t</emphasis> data type defined by +<para>The <constant>video_format_t</constant> data type defined by </para> <programlisting> typedef enum { @@ -74,7 +74,7 @@ typedef enum { </programlisting> <para>VIDEO_SOURCE_DEMUX selects the demultiplexer (fed either by the frontend or the DVR device) as the source of the video stream. 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New Roman', serif" font-weight="400" class="TextParagraph"><tspan y="14420.677" x="12035.335" class="TextPosition"><tspan fill="#000000"> DMA</tspan></tspan></tspan></text> +</g></svg> diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index 4e9462f1ab4c..6e1667b5f3eb 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -4863,7 +4863,7 @@ interface and may change in the future.</para> </note> <para> - The Image Source control class is intended for low-level control of + The Image Process control class is intended for low-level control of image processing functions. Unlike <constant>V4L2_CID_IMAGE_SOURCE_CLASS</constant>, the controls in this class affect processing the image, and do not control capturing @@ -4871,7 +4871,7 @@ interface and may change in the future.</para> </para> <table pgwide="1" frame="none" id="image-process-control-id"> - <title>Image Source Control IDs</title> + <title>Image Process Control IDs</title> <tgroup cols="4"> <colspec colname="c1" colwidth="1*" /> diff --git a/Documentation/DocBook/media/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml index 1c17f802b471..7bbc2a48911e 100644 --- a/Documentation/DocBook/media/v4l/io.xml +++ b/Documentation/DocBook/media/v4l/io.xml @@ -841,15 +841,15 @@ is the file descriptor associated with a DMABUF buffer.</entry> <entry>__u32</entry> <entry><structfield>reserved2</structfield></entry> <entry></entry> - <entry>A place holder for future extensions. Applications -should set this to 0.</entry> + <entry>A place holder for future extensions. Drivers and applications +must set this to 0.</entry> </row> <row> <entry>__u32</entry> <entry><structfield>reserved</structfield></entry> <entry></entry> - <entry>A place holder for future extensions. Applications -should set this to 0.</entry> + <entry>A place holder for future extensions. Drivers and applications +must set this to 0.</entry> </row> </tbody> </tgroup> @@ -930,8 +930,8 @@ should set this to 0.</entry> <entry>__u32</entry> <entry><structfield>reserved[11]</structfield></entry> <entry></entry> - <entry>Reserved for future use. Should be zeroed by an - application.</entry> + <entry>Reserved for future use. Should be zeroed by drivers and + applications.</entry> </row> </tbody> </tgroup> @@ -1129,6 +1129,18 @@ in this buffer has not been created by the CPU but by some DMA-capable unit, in which case caches have not been used.</entry> </row> <row> + <entry><constant>V4L2_BUF_FLAG_LAST</constant></entry> + <entry>0x00100000</entry> + <entry>Last buffer produced by the hardware. mem2mem codec drivers +set this flag on the capture queue for the last buffer when the +<link linkend="vidioc-querybuf">VIDIOC_QUERYBUF</link> or +<link linkend="vidioc-qbuf">VIDIOC_DQBUF</link> ioctl is called. Due to hardware +limitations, the last buffer may be empty. In this case the driver will set the +<structfield>bytesused</structfield> field to 0, regardless of the format. Any +Any subsequent call to the <link linkend="vidioc-qbuf">VIDIOC_DQBUF</link> ioctl +will not block anymore, but return an &EPIPE;.</entry> + </row> + <row> <entry><constant>V4L2_BUF_FLAG_TIMESTAMP_MASK</constant></entry> <entry>0x0000e000</entry> <entry>Mask for timestamp types below. To test the @@ -1155,7 +1167,7 @@ in which case caches have not been used.</entry> <entry>The buffer timestamp has been taken from the <constant>CLOCK_MONOTONIC</constant> clock. To access the same clock outside V4L2, use - <function>clock_gettime(2)</function> .</entry> + <function>clock_gettime(2)</function>.</entry> </row> <row> <entry><constant>V4L2_BUF_FLAG_TIMESTAMP_COPY</constant></entry> diff --git a/Documentation/DocBook/media/v4l/media-func-open.xml b/Documentation/DocBook/media/v4l/media-func-open.xml index f7df034dc9ed..122374a3e894 100644 --- a/Documentation/DocBook/media/v4l/media-func-open.xml +++ b/Documentation/DocBook/media/v4l/media-func-open.xml @@ -44,7 +44,7 @@ <para>To open a media device applications call <function>open()</function> with the desired device name. The function has no side effects; the device configuration remain unchanged.</para> - <para>When the device is opened in read-only mode, attemps to modify its + <para>When the device is opened in read-only mode, attempts to modify its configuration will result in an error, and <varname>errno</varname> will be set to <errorcode>EBADF</errorcode>.</para> </refsect1> diff --git a/Documentation/DocBook/media/v4l/pixfmt-y16-be.xml b/Documentation/DocBook/media/v4l/pixfmt-y16-be.xml new file mode 100644 index 000000000000..cea53e1eaa43 --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-y16-be.xml @@ -0,0 +1,81 @@ +<refentry id="V4L2-PIX-FMT-Y16-BE"> + <refmeta> + <refentrytitle>V4L2_PIX_FMT_Y16_BE ('Y16 ' | (1 << 31))</refentrytitle> + &manvol; + </refmeta> + <refnamediv> + <refname><constant>V4L2_PIX_FMT_Y16_BE</constant></refname> + <refpurpose>Grey-scale image</refpurpose> + </refnamediv> + <refsect1> + <title>Description</title> + + <para>This is a grey-scale image with a depth of 16 bits per +pixel. The most significant byte is stored at lower memory addresses +(big-endian). Note the actual sampling precision may be lower than +16 bits, for example 10 bits per pixel with values in range 0 to +1023.</para> + + <example> + <title><constant>V4L2_PIX_FMT_Y16_BE</constant> 4 × 4 +pixel image</title> + + <formalpara> + <title>Byte Order.</title> + <para>Each cell is one byte. + <informaltable frame="none"> + <tgroup cols="9" align="center"> + <colspec align="left" colwidth="2*" /> + <tbody valign="top"> + <row> + <entry>start + 0:</entry> + <entry>Y'<subscript>00high</subscript></entry> + <entry>Y'<subscript>00low</subscript></entry> + <entry>Y'<subscript>01high</subscript></entry> + <entry>Y'<subscript>01low</subscript></entry> + <entry>Y'<subscript>02high</subscript></entry> + <entry>Y'<subscript>02low</subscript></entry> + <entry>Y'<subscript>03high</subscript></entry> + <entry>Y'<subscript>03low</subscript></entry> + </row> + <row> + <entry>start + 8:</entry> + <entry>Y'<subscript>10high</subscript></entry> + <entry>Y'<subscript>10low</subscript></entry> + <entry>Y'<subscript>11high</subscript></entry> + <entry>Y'<subscript>11low</subscript></entry> + <entry>Y'<subscript>12high</subscript></entry> + <entry>Y'<subscript>12low</subscript></entry> + <entry>Y'<subscript>13high</subscript></entry> + <entry>Y'<subscript>13low</subscript></entry> + </row> + <row> + <entry>start + 16:</entry> + <entry>Y'<subscript>20high</subscript></entry> + <entry>Y'<subscript>20low</subscript></entry> + <entry>Y'<subscript>21high</subscript></entry> + <entry>Y'<subscript>21low</subscript></entry> + <entry>Y'<subscript>22high</subscript></entry> + <entry>Y'<subscript>22low</subscript></entry> + <entry>Y'<subscript>23high</subscript></entry> + <entry>Y'<subscript>23low</subscript></entry> + </row> + <row> + <entry>start + 24:</entry> + <entry>Y'<subscript>30high</subscript></entry> + <entry>Y'<subscript>30low</subscript></entry> + <entry>Y'<subscript>31high</subscript></entry> + <entry>Y'<subscript>31low</subscript></entry> + <entry>Y'<subscript>32high</subscript></entry> + <entry>Y'<subscript>32low</subscript></entry> + <entry>Y'<subscript>33high</subscript></entry> + <entry>Y'<subscript>33low</subscript></entry> + </row> + </tbody> + </tgroup> + </informaltable> + </para> + </formalpara> + </example> + </refsect1> +</refentry> diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index fcde4e20205e..965ea916784a 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -157,6 +157,14 @@ see <xref linkend="colorspaces" />.</entry> capture streams and by the application for output streams, see <xref linkend="colorspaces" />.</entry> </row> + <row> + <entry>&v4l2-xfer-func;</entry> + <entry><structfield>xfer_func</structfield></entry> + <entry>This information supplements the +<structfield>colorspace</structfield> and must be set by the driver for +capture streams and by the application for output streams, +see <xref linkend="colorspaces" />.</entry> + </row> </tbody> </tgroup> </table> @@ -190,8 +198,8 @@ see <xref linkend="colorspaces" />.</entry> <row> <entry>__u16</entry> <entry><structfield>reserved[6]</structfield></entry> - <entry>Reserved for future extensions. Should be zeroed by the - application.</entry> + <entry>Reserved for future extensions. Should be zeroed by drivers and + applications.</entry> </row> </tbody> </tgroup> @@ -264,11 +272,19 @@ see <xref linkend="colorspaces" />.</entry> capture streams and by the application for output streams, see <xref linkend="colorspaces" />.</entry> </row> + <row> + <entry>&v4l2-xfer-func;</entry> + <entry><structfield>xfer_func</structfield></entry> + <entry>This information supplements the +<structfield>colorspace</structfield> and must be set by the driver for +capture streams and by the application for output streams, +see <xref linkend="colorspaces" />.</entry> + </row> <row> <entry>__u8</entry> - <entry><structfield>reserved[8]</structfield></entry> - <entry>Reserved for future extensions. Should be zeroed by the - application.</entry> + <entry><structfield>reserved[7]</structfield></entry> + <entry>Reserved for future extensions. Should be zeroed by drivers + and applications.</entry> </row> </tbody> </tgroup> @@ -476,15 +492,16 @@ is also very useful.</para> <section> <title>Defining Colorspaces in V4L2</title> - <para>In V4L2 colorspaces are defined by three values. The first is the colorspace -identifier (&v4l2-colorspace;) which defines the chromaticities, the transfer + <para>In V4L2 colorspaces are defined by four values. The first is the colorspace +identifier (&v4l2-colorspace;) which defines the chromaticities, the default transfer function, the default Y'CbCr encoding and the default quantization method. The second -is the Y'CbCr encoding identifier (&v4l2-ycbcr-encoding;) to specify non-standard -Y'CbCr encodings and the third is the quantization identifier (&v4l2-quantization;) -to specify non-standard quantization methods. Most of the time only the colorspace -field of &v4l2-pix-format; or &v4l2-pix-format-mplane; needs to be filled in. Note -that the default R'G'B' quantization is full range for all colorspaces except for -BT.2020 which uses limited range R'G'B' quantization.</para> +is the transfer function identifier (&v4l2-xfer-func;) to specify non-standard +transfer functions. The third is the Y'CbCr encoding identifier (&v4l2-ycbcr-encoding;) +to specify non-standard Y'CbCr encodings and the fourth is the quantization identifier +(&v4l2-quantization;) to specify non-standard quantization methods. Most of the time +only the colorspace field of &v4l2-pix-format; or &v4l2-pix-format-mplane; needs to +be filled in. Note that the default R'G'B' quantization is full range for all +colorspaces except for BT.2020 which uses limited range R'G'B' quantization.</para> <table pgwide="1" frame="none" id="v4l2-colorspace"> <title>V4L2 Colorspaces</title> @@ -498,6 +515,11 @@ BT.2020 which uses limited range R'G'B' quantization.</para> </thead> <tbody valign="top"> <row> + <entry><constant>V4L2_COLORSPACE_DEFAULT</constant></entry> + <entry>The default colorspace. This can be used by applications to let the + driver fill in the colorspace.</entry> + </row> + <row> <entry><constant>V4L2_COLORSPACE_SMPTE170M</constant></entry> <entry>See <xref linkend="col-smpte-170m" />.</entry> </row> @@ -533,6 +555,52 @@ BT.2020 which uses limited range R'G'B' quantization.</para> <entry><constant>V4L2_COLORSPACE_JPEG</constant></entry> <entry>See <xref linkend="col-jpeg" />.</entry> </row> + <row> + <entry><constant>V4L2_COLORSPACE_RAW</constant></entry> + <entry>The raw colorspace. This is used for raw image capture where + the image is minimally processed and is using the internal colorspace + of the device. The software that processes an image using this + 'colorspace' will have to know the internals of the capture device.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table pgwide="1" frame="none" id="v4l2-xfer-func"> + <title>V4L2 Transfer Function</title> + <tgroup cols="2" align="left"> + &cs-def; + <thead> + <row> + <entry>Identifier</entry> + <entry>Details</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry><constant>V4L2_XFER_FUNC_DEFAULT</constant></entry> + <entry>Use the default transfer function as defined by the colorspace.</entry> + </row> + <row> + <entry><constant>V4L2_XFER_FUNC_709</constant></entry> + <entry>Use the Rec. 709 transfer function.</entry> + </row> + <row> + <entry><constant>V4L2_XFER_FUNC_SRGB</constant></entry> + <entry>Use the sRGB transfer function.</entry> + </row> + <row> + <entry><constant>V4L2_XFER_FUNC_ADOBERGB</constant></entry> + <entry>Use the AdobeRGB transfer function.</entry> + </row> + <row> + <entry><constant>V4L2_XFER_FUNC_SMPTE240M</constant></entry> + <entry>Use the SMPTE 240M transfer function.</entry> + </row> + <row> + <entry><constant>V4L2_XFER_FUNC_NONE</constant></entry> + <entry>Do not use a transfer function (i.e. use linear RGB values).</entry> + </row> </tbody> </tgroup> </table> @@ -624,7 +692,8 @@ is mapped to [16…235]. Cb and Cr are mapped from [-0.5…0.5] to [16 <section id="col-smpte-170m"> <title>Colorspace SMPTE 170M (<constant>V4L2_COLORSPACE_SMPTE170M</constant>)</title> <para>The <xref linkend="smpte170m" /> standard defines the colorspace used by NTSC and PAL and by SDTV -in general. The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_601</constant>. +in general. The default transfer function is <constant>V4L2_XFER_FUNC_709</constant>. +The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_601</constant>. The default Y'CbCr quantization is limited range. The chromaticities of the primary colors and the white reference are:</para> <table frame="none"> @@ -706,7 +775,8 @@ rarely seen.</para> <section id="col-rec709"> <title>Colorspace Rec. 709 (<constant>V4L2_COLORSPACE_REC709</constant>)</title> - <para>The <xref linkend="itu709" /> standard defines the colorspace used by HDTV in general. The default + <para>The <xref linkend="itu709" /> standard defines the colorspace used by HDTV in general. +The default transfer function is <constant>V4L2_XFER_FUNC_709</constant>. The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_709</constant>. The default Y'CbCr quantization is limited range. The chromaticities of the primary colors and the white reference are:</para> <table frame="none"> @@ -817,9 +887,11 @@ The xvYCC encodings always use full range quantization.</para> <section id="col-srgb"> <title>Colorspace sRGB (<constant>V4L2_COLORSPACE_SRGB</constant>)</title> - <para>The <xref linkend="srgb" /> standard defines the colorspace used by most webcams and computer graphics. The -default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_SYCC</constant>. The default Y'CbCr quantization -is full range. The chromaticities of the primary colors and the white reference are:</para> + <para>The <xref linkend="srgb" /> standard defines the colorspace used by most webcams +and computer graphics. The default transfer function is <constant>V4L2_XFER_FUNC_SRGB</constant>. +The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_SYCC</constant>. The default Y'CbCr +quantization is full range. The chromaticities of the primary colors and the white +reference are:</para> <table frame="none"> <title>sRGB Chromaticities</title> <tgroup cols="3" align="left"> @@ -896,6 +968,7 @@ values before quantization, but this encoding does not do that.</para> <title>Colorspace Adobe RGB (<constant>V4L2_COLORSPACE_ADOBERGB</constant>)</title> <para>The <xref linkend="adobergb" /> standard defines the colorspace used by computer graphics that use the AdobeRGB colorspace. This is also known as the <xref linkend="oprgb" /> standard. +The default transfer function is <constant>V4L2_XFER_FUNC_ADOBERGB</constant>. The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_601</constant>. The default Y'CbCr quantization is limited range. The chromaticities of the primary colors and the white reference are:</para> @@ -967,7 +1040,8 @@ SMPTE 170M/BT.601. The Y'CbCr quantization is limited range.</para> <section id="col-bt2020"> <title>Colorspace BT.2020 (<constant>V4L2_COLORSPACE_BT2020</constant>)</title> <para>The <xref linkend="itu2020" /> standard defines the colorspace used by Ultra-high definition -television (UHDTV). The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_BT2020</constant>. +television (UHDTV). The default transfer function is <constant>V4L2_XFER_FUNC_709</constant>. +The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_BT2020</constant>. The default R'G'B' quantization is limited range (!), and so is the default Y'CbCr quantization. The chromaticities of the primary colors and the white reference are:</para> <table frame="none"> @@ -1082,8 +1156,10 @@ clamped to the range [-0.5…0.5]. The Yc'CbcCrc quantization is limited ra <section id="col-smpte-240m"> <title>Colorspace SMPTE 240M (<constant>V4L2_COLORSPACE_SMPTE240M</constant>)</title> - <para>The <xref linkend="smpte240m" /> standard was an interim standard used during the early days of HDTV (1988-1998). -It has been superseded by Rec. 709. The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_SMPTE240M</constant>. + <para>The <xref linkend="smpte240m" /> standard was an interim standard used during +the early days of HDTV (1988-1998). It has been superseded by Rec. 709. +The default transfer function is <constant>V4L2_XFER_FUNC_SMPTE240M</constant>. +The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_SMPTE240M</constant>. The default Y'CbCr quantization is limited range. The chromaticities of the primary colors and the white reference are:</para> <table frame="none"> @@ -1156,8 +1232,10 @@ clamped to the range [-0.5…0.5]. The Y'CbCr quantization is limited range <section id="col-sysm"> <title>Colorspace NTSC 1953 (<constant>V4L2_COLORSPACE_470_SYSTEM_M</constant>)</title> <para>This standard defines the colorspace used by NTSC in 1953. In practice this -colorspace is obsolete and SMPTE 170M should be used instead. The default Y'CbCr encoding -is <constant>V4L2_YCBCR_ENC_601</constant>. The default Y'CbCr quantization is limited range. +colorspace is obsolete and SMPTE 170M should be used instead. +The default transfer function is <constant>V4L2_XFER_FUNC_709</constant>. +The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_601</constant>. +The default Y'CbCr quantization is limited range. The chromaticities of the primary colors and the white reference are:</para> <table frame="none"> <title>NTSC 1953 Chromaticities</title> @@ -1234,8 +1312,10 @@ This transform is identical to one defined in SMPTE 170M/BT.601.</para> <section id="col-sysbg"> <title>Colorspace EBU Tech. 3213 (<constant>V4L2_COLORSPACE_470_SYSTEM_BG</constant>)</title> <para>The <xref linkend="tech3213" /> standard defines the colorspace used by PAL/SECAM in 1975. In practice this -colorspace is obsolete and SMPTE 170M should be used instead. The default Y'CbCr encoding -is <constant>V4L2_YCBCR_ENC_601</constant>. The default Y'CbCr quantization is limited range. +colorspace is obsolete and SMPTE 170M should be used instead. +The default transfer function is <constant>V4L2_XFER_FUNC_709</constant>. +The default Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_601</constant>. +The default Y'CbCr quantization is limited range. The chromaticities of the primary colors and the white reference are:</para> <table frame="none"> <title>EBU Tech. 3213 Chromaticities</title> @@ -1308,7 +1388,8 @@ This transform is identical to one defined in SMPTE 170M/BT.601.</para> <section id="col-jpeg"> <title>Colorspace JPEG (<constant>V4L2_COLORSPACE_JPEG</constant>)</title> <para>This colorspace defines the colorspace used by most (Motion-)JPEG formats. The chromaticities -of the primary colors and the white reference are identical to sRGB. The Y'CbCr encoding is +of the primary colors and the white reference are identical to sRGB. The transfer +function use is <constant>V4L2_XFER_FUNC_SRGB</constant>. The Y'CbCr encoding is <constant>V4L2_YCBCR_ENC_601</constant> with full range quantization where Y' is scaled to [0…255] and Cb/Cr are scaled to [-128…128] and then clipped to [-128…127].</para> @@ -1429,6 +1510,7 @@ information.</para> &sub-y12; &sub-y10b; &sub-y16; + &sub-y16-be; &sub-uv8; &sub-yuyv; &sub-uyvy; diff --git a/Documentation/DocBook/media/v4l/remote_controllers.xml b/Documentation/DocBook/media/v4l/remote_controllers.xml index 5124a6c4daa8..b86844e80257 100644 --- a/Documentation/DocBook/media/v4l/remote_controllers.xml +++ b/Documentation/DocBook/media/v4l/remote_controllers.xml @@ -284,7 +284,7 @@ different IR's. Due to that, V4L2 API now specifies a standard for mapping Media </tgroup> </table> -<para>It should be noticed that, sometimes, there some fundamental missing keys at some cheaper IR's. Due to that, it is recommended to:</para> +<para>It should be noted that, sometimes, there some fundamental missing keys at some cheaper IR's. Due to that, it is recommended to:</para> <table pgwide="1" frame="none" id="rc_keymap_notes"> <title>Notes</title> diff --git a/Documentation/DocBook/media/v4l/subdev-formats.xml b/Documentation/DocBook/media/v4l/subdev-formats.xml index 2588ad781242..4e73345e3eab 100644 --- a/Documentation/DocBook/media/v4l/subdev-formats.xml +++ b/Documentation/DocBook/media/v4l/subdev-formats.xml @@ -50,8 +50,16 @@ capture streams and by the application for output streams, see <xref linkend="colorspaces" />.</entry> </row> <row> - <entry>__u32</entry> - <entry><structfield>reserved</structfield>[6]</entry> + <entry>&v4l2-xfer-func;</entry> + <entry><structfield>xfer_func</structfield></entry> + <entry>This information supplements the +<structfield>colorspace</structfield> and must be set by the driver for +capture streams and by the application for output streams, +see <xref linkend="colorspaces" />.</entry> + </row> + <row> + <entry>__u16</entry> + <entry><structfield>reserved</structfield>[11]</entry> <entry>Reserved for future extensions. Applications and drivers must set the array to zero.</entry> </row> diff --git a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml index 9b700a5f4df7..8ffe74f84af1 100644 --- a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml +++ b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml @@ -134,7 +134,8 @@ information.</para> <row> <entry>__u32</entry> <entry><structfield>reserved</structfield>[8]</entry> - <entry>A place holder for future extensions.</entry> + <entry>A place holder for future extensions. Drivers and applications +must set the array to zero.</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/vidioc-decoder-cmd.xml b/Documentation/DocBook/media/v4l/vidioc-decoder-cmd.xml index 9215627b04c7..73eb5cfe698a 100644 --- a/Documentation/DocBook/media/v4l/vidioc-decoder-cmd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-decoder-cmd.xml @@ -197,7 +197,17 @@ be muted when playing back at a non-standard speed. this command does nothing. This command has two flags: if <constant>V4L2_DEC_CMD_STOP_TO_BLACK</constant> is set, then the decoder will set the picture to black after it stopped decoding. Otherwise the last image will -repeat. If <constant>V4L2_DEC_CMD_STOP_IMMEDIATELY</constant> is set, then the decoder +repeat. mem2mem decoders will stop producing new frames altogether. They will send +a <constant>V4L2_EVENT_EOS</constant> event when the last frame has been decoded +and all frames are ready to be dequeued and will set the +<constant>V4L2_BUF_FLAG_LAST</constant> buffer flag on the last buffer of the +capture queue to indicate there will be no new buffers produced to dequeue. This +buffer may be empty, indicated by the driver setting the +<structfield>bytesused</structfield> field to 0. Once the +<constant>V4L2_BUF_FLAG_LAST</constant> flag was set, the +<link linkend="vidioc-qbuf">VIDIOC_DQBUF</link> ioctl will not block anymore, +but return an &EPIPE;. +If <constant>V4L2_DEC_CMD_STOP_IMMEDIATELY</constant> is set, then the decoder stops immediately (ignoring the <structfield>pts</structfield> value), otherwise it will keep decoding until timestamp >= pts or until the last of the pending data from its internal buffers was decoded. diff --git a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml index 50ccd33948c1..c9c3c7713832 100644 --- a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml +++ b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml @@ -133,7 +133,10 @@ <entry>struct timespec</entry> <entry><structfield>timestamp</structfield></entry> <entry></entry> - <entry>Event timestamp.</entry> + <entry>Event timestamp. The timestamp has been taken from the + <constant>CLOCK_MONOTONIC</constant> clock. To access the + same clock outside V4L2, use <function>clock_gettime(2)</function>. + </entry> </row> <row> <entry>u32</entry> diff --git a/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml index 0619ca5d2d36..fc1d4625a78c 100644 --- a/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml @@ -129,7 +129,15 @@ this command.</entry> encoding will continue until the end of the current <wordasword>Group Of Pictures</wordasword>, otherwise encoding will stop immediately. When the encoder is already stopped, this command does -nothing.</entry> +nothing. mem2mem encoders will send a <constant>V4L2_EVENT_EOS</constant> event +when the last frame has been decoded and all frames are ready to be dequeued and +will set the <constant>V4L2_BUF_FLAG_LAST</constant> buffer flag on the last +buffer of the capture queue to indicate there will be no new buffers produced to +dequeue. This buffer may be empty, indicated by the driver setting the +<structfield>bytesused</structfield> field to 0. Once the +<constant>V4L2_BUF_FLAG_LAST</constant> flag was set, the +<link linkend="vidioc-qbuf">VIDIOC_DQBUF</link> ioctl will not block anymore, +but return an &EPIPE;.</entry> </row> <row> <entry><constant>V4L2_ENC_CMD_PAUSE</constant></entry> diff --git a/Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml b/Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml index 5fd72c4c33e3..7c839ab0afbb 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml @@ -217,7 +217,8 @@ enumerated.</entry> <entry>__u32</entry> <entry><structfield>reserved[2]</structfield></entry> <entry></entry> - <entry>Reserved space for future use.</entry> + <entry>Reserved space for future use. Must be zeroed by drivers and + applications.</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml b/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml index a78454b5abcd..9ed68ac8f474 100644 --- a/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml @@ -223,7 +223,8 @@ application should zero out all members except for the <entry>__u32</entry> <entry><structfield>reserved[2]</structfield></entry> <entry></entry> - <entry>Reserved space for future use.</entry> + <entry>Reserved space for future use. Must be zeroed by drivers and + applications.</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/vidioc-expbuf.xml b/Documentation/DocBook/media/v4l/vidioc-expbuf.xml index 4165e7bfa4ff..a78c9207422f 100644 --- a/Documentation/DocBook/media/v4l/vidioc-expbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-expbuf.xml @@ -184,7 +184,8 @@ of open() for more details.</entry> <row> <entry>__u32</entry> <entry><structfield>reserved[11]</structfield></entry> - <entry>Reserved field for future use. Must be set to zero.</entry> + <entry>Reserved field for future use. Drivers and applications must +set the array to zero.</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml b/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml index 764b635ed4cf..06952d7cc770 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml @@ -7,6 +7,8 @@ <refnamediv> <refname>VIDIOC_G_DV_TIMINGS</refname> <refname>VIDIOC_S_DV_TIMINGS</refname> + <refname>VIDIOC_SUBDEV_G_DV_TIMINGS</refname> + <refname>VIDIOC_SUBDEV_S_DV_TIMINGS</refname> <refpurpose>Get or set DV timings for input or output</refpurpose> </refnamediv> @@ -34,7 +36,7 @@ <varlistentry> <term><parameter>request</parameter></term> <listitem> - <para>VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</para> + <para>VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS, VIDIOC_SUBDEV_G_DV_TIMINGS, VIDIOC_SUBDEV_S_DV_TIMINGS</para> </listitem> </varlistentry> <varlistentry> diff --git a/Documentation/DocBook/media/v4l/vidioc-g-edid.xml b/Documentation/DocBook/media/v4l/vidioc-g-edid.xml index 6df40db4c8ba..2702536bbc7c 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-edid.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-edid.xml @@ -7,6 +7,8 @@ <refnamediv> <refname>VIDIOC_G_EDID</refname> <refname>VIDIOC_S_EDID</refname> + <refname>VIDIOC_SUBDEV_G_EDID</refname> + <refname>VIDIOC_SUBDEV_S_EDID</refname> <refpurpose>Get or set the EDID of a video receiver/transmitter</refpurpose> </refnamediv> @@ -42,7 +44,7 @@ <varlistentry> <term><parameter>request</parameter></term> <listitem> - <para>VIDIOC_G_EDID, VIDIOC_S_EDID</para> + <para>VIDIOC_G_EDID, VIDIOC_S_EDID, VIDIOC_SUBDEV_G_EDID, VIDIOC_SUBDEV_S_EDID</para> </listitem> </varlistentry> <varlistentry> @@ -82,6 +84,13 @@ <para>If blocks have to be retrieved from the sink, then this call will block until they have been read.</para> + <para>If <structfield>start_block</structfield> and <structfield>blocks</structfield> are + both set to 0 when <constant>VIDIOC_G_EDID</constant> is called, then the driver will + set <structfield>blocks</structfield> to the total number of available EDID blocks + and it will return 0 without copying any data. This is an easy way to discover how many + EDID blocks there are. Note that if there are no EDID blocks available at all, then + the driver will set <structfield>blocks</structfield> to 0 and it returns 0.</para> + <para>To set the EDID blocks of a receiver the application has to fill in the <structfield>pad</structfield>, <structfield>blocks</structfield> and <structfield>edid</structfield> fields and set <structfield>start_block</structfield> to 0. It is not possible to set part of an EDID, diff --git a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml index 0bb5c060db27..7865351688da 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml @@ -199,7 +199,7 @@ exist no rectangle</emphasis> that satisfies the constraints.</para> <row> <entry>__u32</entry> <entry><structfield>reserved[9]</structfield></entry> - <entry>Reserved fields for future use.</entry> + <entry>Reserved fields for future use. Drivers and applications must zero this array.</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/vidioc-qbuf.xml b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml index 3504a7f2f382..8b98a0e421fc 100644 --- a/Documentation/DocBook/media/v4l/vidioc-qbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml @@ -187,6 +187,16 @@ continue streaming. </para> </listitem> </varlistentry> + <varlistentry> + <term><errorcode>EPIPE</errorcode></term> + <listitem> + <para><constant>VIDIOC_DQBUF</constant> returns this on an empty +capture queue for mem2mem codecs if a buffer with the +<constant>V4L2_BUF_FLAG_LAST</constant> was already dequeued and no new buffers +are expected to become available. + </para> + </listitem> + </varlistentry> </variablelist> </refsect1> </refentry> diff --git a/Documentation/DocBook/media/v4l/vidioc-query-dv-timings.xml b/Documentation/DocBook/media/v4l/vidioc-query-dv-timings.xml index e185f149e0a1..e9c70a8f3476 100644 --- a/Documentation/DocBook/media/v4l/vidioc-query-dv-timings.xml +++ b/Documentation/DocBook/media/v4l/vidioc-query-dv-timings.xml @@ -6,6 +6,7 @@ <refnamediv> <refname>VIDIOC_QUERY_DV_TIMINGS</refname> + <refname>VIDIOC_SUBDEV_QUERY_DV_TIMINGS</refname> <refpurpose>Sense the DV preset received by the current input</refpurpose> </refnamediv> @@ -34,7 +35,7 @@ input</refpurpose> <varlistentry> <term><parameter>request</parameter></term> <listitem> - <para>VIDIOC_QUERY_DV_TIMINGS</para> + <para>VIDIOC_QUERY_DV_TIMINGS, VIDIOC_SUBDEV_QUERY_DV_TIMINGS</para> </listitem> </varlistentry> <varlistentry> diff --git a/Documentation/DocBook/media/v4l/vidioc-querybuf.xml b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml index a597155c052d..50bfcb5e8508 100644 --- a/Documentation/DocBook/media/v4l/vidioc-querybuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml @@ -60,7 +60,8 @@ buffer at any time after buffers have been allocated with the field. Valid index numbers range from zero to the number of buffers allocated with &VIDIOC-REQBUFS; (&v4l2-requestbuffers; <structfield>count</structfield>) minus one. -The <structfield>reserved</structfield> field should to set to 0. +The <structfield>reserved</structfield> and <structfield>reserved2 </structfield> +fields must be set to 0. When using the <link linkend="planar-apis">multi-planar API</link>, the <structfield>m.planes</structfield> field must contain a userspace pointer to an array of &v4l2-plane; and the <structfield>length</structfield> field has diff --git a/Documentation/DocBook/media/v4l/vidioc-reqbufs.xml b/Documentation/DocBook/media/v4l/vidioc-reqbufs.xml index 78a06a9a5ece..0f193fda0470 100644 --- a/Documentation/DocBook/media/v4l/vidioc-reqbufs.xml +++ b/Documentation/DocBook/media/v4l/vidioc-reqbufs.xml @@ -112,8 +112,8 @@ as the &v4l2-format; <structfield>type</structfield> field. See <xref <row> <entry>__u32</entry> <entry><structfield>reserved</structfield>[2]</entry> - <entry>A place holder for future extensions. This array should -be zeroed by applications.</entry> + <entry>A place holder for future extensions. Drivers and applications +must set the array to zero.</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml index d0332f610929..5fd0ee78f880 100644 --- a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml @@ -5,7 +5,8 @@ </refmeta> <refnamediv> - <refname>VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refname> + <refname>VIDIOC_SUBSCRIBE_EVENT</refname> + <refname>VIDIOC_UNSUBSCRIBE_EVENT</refname> <refpurpose>Subscribe or unsubscribe event</refpurpose> </refnamediv> diff --git a/Documentation/DocBook/media_api.tmpl b/Documentation/DocBook/media_api.tmpl index 03f9a1f8d413..f3f5fe5b64c9 100644 --- a/Documentation/DocBook/media_api.tmpl +++ b/Documentation/DocBook/media_api.tmpl @@ -1,12 +1,13 @@ -<?xml version="1.0"?> -<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" - "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" + "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ <!ENTITY % media-entities SYSTEM "./media-entities.tmpl"> %media-entities; <!ENTITY media-indices SYSTEM "./media-indices.tmpl"> <!ENTITY eg "e. g."> <!ENTITY ie "i. e."> <!ENTITY fd "File descriptor returned by <link linkend='func-open'><function>open()</function></link>."> +<!ENTITY fe_fd "File descriptor returned by <link linkend='frontend_f_open'><function>open()</function></link>."> <!ENTITY i2c "I<superscript>2</superscript>C"> <!ENTITY return-value "<title>Return Value</title><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately. The generic error codes are described at the <link linkend='gen-errors'>Generic Error Codes</link> chapter.</para>"> <!ENTITY return-value-dvb "<para>RETURN VALUE</para><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately. The generic error codes are described at the <link linkend='gen-errors'>Generic Error Codes</link> chapter.</para>"> @@ -32,7 +33,7 @@ <!ENTITY dash-ent-24 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>"> ]> -<book id="media_api"> +<book id="media_api" lang="en"> <bookinfo> <title>LINUX MEDIA INFRASTRUCTURE API</title> @@ -60,28 +61,56 @@ analog and digital TV receiver cards, AM/FM receiver cards, streaming capture and output devices, codec devices and remote controllers.</para> - <para>It is divided into four parts.</para> + <para>A typical media device hardware is shown at + <xref linkend="typical_media_device" />.</para> + <figure id="typical_media_device"> + <title>Typical Media Device</title> + <mediaobject> + <imageobject> + <imagedata fileref="typical_media_device.svg" format="SVG" /> + </imageobject> + <textobject> + <phrase>Typical Media Device Block Diagram</phrase> + </textobject> + </mediaobject> + </figure> + <para>The media infrastructure API was designed to control such + devices. It is divided into four parts.</para> <para>The first part covers radio, video capture and output, cameras, analog TV devices and codecs.</para> <para>The second part covers the API used for digital TV and Internet reception via one of the several digital tv standards. While it is called as DVB API, in fact it covers several different video standards including - DVB-T, DVB-S, DVB-C and ATSC. The API is currently being updated - to document support also for DVB-S2, ISDB-T and ISDB-S.</para> + DVB-T/T2, DVB-S/S2, DVB-C, ATSC, ISDB-T, ISDB-S,etc. The complete + list of supported standards can be found at + <xref linkend="fe-delivery-system-t" />.</para> <para>The third part covers the Remote Controller API.</para> <para>The fourth part covers the Media Controller API.</para> + <para>It should also be noted that a media device may also have audio + components, like mixers, PCM capture, PCM playback, etc, which + are controlled via ALSA API.</para> <para>For additional information and for the latest development code, see: <ulink url="http://linuxtv.org">http://linuxtv.org</ulink>.</para> <para>For discussing improvements, reporting troubles, sending new drivers, etc, please mail to: <ulink url="http://vger.kernel.org/vger-lists.html#linux-media">Linux Media Mailing List (LMML).</ulink>.</para> </preface> -<part id="v4l2spec">&sub-v4l2;</part> -<part id="dvbapi">&sub-dvbapi;</part> -<part id="remotes">&sub-remote_controllers;</part> -<part id="media_common">&sub-media-controller;</part> +<part id="v4l2spec"> +&sub-v4l2; +</part> +<part id="dvbapi"> +&sub-dvbapi; +</part> +<part id="remotes"> +&sub-remote_controllers; +</part> +<part id="media_common"> +&sub-media-controller; +</part> -<chapter id="gen_errors">&sub-gen-errors;</chapter> +<chapter id="gen_errors"> +&sub-gen-errors; +</chapter> &sub-fdl-appendix; |
