From 60c2820d0f6d3497975b6488e2599f8f611d8b95 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 8 Jul 2016 11:40:06 -0300 Subject: doc_rst: rename the media Sphinx suff to Documentation/media The name of the subsystem is "media", and not "linux_tv". Also, as we plan to add other stuff there in the future, let's rename also the media uAPI book to media_uapi, to make it clearer. No functional changes. Signed-off-by: Mauro Carvalho Chehab --- Documentation/Makefile.sphinx | 2 +- Documentation/index.rst | 2 +- Documentation/linux_tv/Makefile | 50 - Documentation/linux_tv/audio.h.rst.exceptions | 20 - Documentation/linux_tv/ca.h.rst.exceptions | 24 - Documentation/linux_tv/dmx.h.rst.exceptions | 63 - Documentation/linux_tv/frontend.h.rst.exceptions | 47 - Documentation/linux_tv/index.rst | 83 - .../media/dvb/audio-bilingual-channel-select.rst | 64 - .../linux_tv/media/dvb/audio-channel-select.rst | 63 - .../linux_tv/media/dvb/audio-clear-buffer.rst | 54 - .../linux_tv/media/dvb/audio-continue.rst | 54 - Documentation/linux_tv/media/dvb/audio-fclose.rst | 54 - Documentation/linux_tv/media/dvb/audio-fopen.rst | 104 - Documentation/linux_tv/media/dvb/audio-fwrite.rst | 82 - .../linux_tv/media/dvb/audio-get-capabilities.rst | 60 - Documentation/linux_tv/media/dvb/audio-get-pts.rst | 69 - .../linux_tv/media/dvb/audio-get-status.rst | 60 - Documentation/linux_tv/media/dvb/audio-pause.rst | 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a/Documentation/Makefile.sphinx +++ b/Documentation/Makefile.sphinx @@ -35,7 +35,7 @@ quiet_cmd_sphinx = SPHINX $@ cmd_sphinx = BUILDDIR=$(BUILDDIR) $(SPHINXBUILD) -b $2 $(ALLSPHINXOPTS) $(BUILDDIR)/$2 htmldocs: - $(MAKE) BUILDDIR=$(BUILDDIR) -f $(srctree)/Documentation/linux_tv/Makefile $@ + $(MAKE) BUILDDIR=$(BUILDDIR) -f $(srctree)/Documentation/media/Makefile $@ $(call cmd,sphinx,html) pdfdocs: diff --git a/Documentation/index.rst b/Documentation/index.rst index 8bc7bf4e6041..ad07716c73f4 100644 --- a/Documentation/index.rst +++ b/Documentation/index.rst @@ -14,7 +14,7 @@ Contents: :maxdepth: 2 kernel-documentation - linux_tv/index + media/media_uapi Indices and tables ================== diff --git a/Documentation/linux_tv/Makefile b/Documentation/linux_tv/Makefile deleted file mode 100644 index 688e37d7b232..000000000000 --- a/Documentation/linux_tv/Makefile +++ /dev/null @@ -1,50 +0,0 @@ -# Generate the *.h.rst files from uAPI headers - -PARSER = $(srctree)/Documentation/sphinx/parse-headers.pl -UAPI = $(srctree)/include/uapi/linux -SRC_DIR=$(srctree)/Documentation/linux_tv - -FILES = audio.h.rst ca.h.rst dmx.h.rst frontend.h.rst net.h.rst video.h.rst \ - videodev2.h.rst - -TARGETS := $(addprefix $(BUILDDIR)/, $(FILES)) - -htmldocs: $(BUILDDIR) ${TARGETS} - -$(BUILDDIR): - $(Q)mkdir -p $@ - -# Rule to convert a .h file to inline RST documentation - -gen_rst = \ - echo ${PARSER} $< $@ $(SRC_DIR)/$(notdir $@).exceptions; \ - ${PARSER} $< $@ $(SRC_DIR)/$(notdir $@).exceptions - -quiet_gen_rst = echo ' PARSE $(patsubst $(srctree)/%,%,$<)'; \ - ${PARSER} $< $@ $(SRC_DIR)/$(notdir $@).exceptions - -silent_gen_rst = ${gen_rst} - -$(BUILDDIR)/audio.h.rst: ${UAPI}/dvb/audio.h ${PARSER} $(SRC_DIR)/audio.h.rst.exceptions - @$($(quiet)gen_rst) - -$(BUILDDIR)/ca.h.rst: ${UAPI}/dvb/ca.h ${PARSER} $(SRC_DIR)/ca.h.rst.exceptions - @$($(quiet)gen_rst) - -$(BUILDDIR)/dmx.h.rst: ${UAPI}/dvb/dmx.h ${PARSER} $(SRC_DIR)/dmx.h.rst.exceptions - @$($(quiet)gen_rst) - -$(BUILDDIR)/frontend.h.rst: ${UAPI}/dvb/frontend.h ${PARSER} $(SRC_DIR)/frontend.h.rst.exceptions - @$($(quiet)gen_rst) - -$(BUILDDIR)/net.h.rst: ${UAPI}/dvb/net.h ${PARSER} $(SRC_DIR)/net.h.rst.exceptions - @$($(quiet)gen_rst) - -$(BUILDDIR)/video.h.rst: ${UAPI}/dvb/video.h ${PARSER} $(SRC_DIR)/video.h.rst.exceptions - @$($(quiet)gen_rst) - -$(BUILDDIR)/videodev2.h.rst: ${UAPI}/videodev2.h ${PARSER} $(SRC_DIR)/videodev2.h.rst.exceptions - @$($(quiet)gen_rst) - -cleandocs: - -rm ${TARGETS} diff --git a/Documentation/linux_tv/audio.h.rst.exceptions b/Documentation/linux_tv/audio.h.rst.exceptions deleted file mode 100644 index 8330edcd906d..000000000000 --- a/Documentation/linux_tv/audio.h.rst.exceptions +++ /dev/null @@ -1,20 +0,0 @@ -# Ignore header name -ignore define _DVBAUDIO_H_ - -# Typedef pointing to structs -replace typedef audio_karaoke_t audio-karaoke - -# Undocumented audio caps, as this is a deprecated API anyway -ignore define AUDIO_CAP_DTS -ignore define AUDIO_CAP_LPCM -ignore define AUDIO_CAP_MP1 -ignore define AUDIO_CAP_MP2 -ignore define AUDIO_CAP_MP3 -ignore define AUDIO_CAP_AAC -ignore define AUDIO_CAP_OGG -ignore define AUDIO_CAP_SDDS -ignore define AUDIO_CAP_AC3 - -# some typedefs should point to struct/enums -replace typedef audio_mixer_t audio-mixer -replace typedef audio_status_t audio-status diff --git a/Documentation/linux_tv/ca.h.rst.exceptions b/Documentation/linux_tv/ca.h.rst.exceptions deleted file mode 100644 index 09c13be67527..000000000000 --- a/Documentation/linux_tv/ca.h.rst.exceptions +++ /dev/null @@ -1,24 +0,0 @@ -# Ignore header name -ignore define _DVBCA_H_ - -# struct ca_slot_info defines -replace define CA_CI ca-slot-info -replace define CA_CI_LINK ca-slot-info -replace define CA_CI_PHYS ca-slot-info -replace define CA_DESCR ca-slot-info -replace define CA_SC ca-slot-info -replace define CA_CI_MODULE_PRESENT ca-slot-info -replace define CA_CI_MODULE_READY ca-slot-info - -# struct ca_descr_info defines -replace define CA_ECD ca-descr-info -replace define CA_NDS ca-descr-info -replace define CA_DSS ca-descr-info - -# some typedefs should point to struct/enums -replace typedef ca_pid_t ca-pid -replace typedef ca_slot_info_t ca-slot-info -replace typedef ca_descr_info_t ca-descr-info -replace typedef ca_caps_t ca-caps -replace typedef ca_msg_t ca-msg -replace typedef ca_descr_t ca-descr diff --git a/Documentation/linux_tv/dmx.h.rst.exceptions b/Documentation/linux_tv/dmx.h.rst.exceptions deleted file mode 100644 index 8200653839d2..000000000000 --- a/Documentation/linux_tv/dmx.h.rst.exceptions +++ /dev/null @@ -1,63 +0,0 @@ -# Ignore header name -ignore define _UAPI_DVBDMX_H_ - -# Ignore limit constants -ignore define DMX_FILTER_SIZE - -# dmx-pes-type-t enum symbols -replace enum dmx_ts_pes dmx-pes-type-t -replace symbol DMX_PES_AUDIO0 dmx-pes-type-t -replace symbol DMX_PES_VIDEO0 dmx-pes-type-t -replace symbol DMX_PES_TELETEXT0 dmx-pes-type-t -replace symbol DMX_PES_SUBTITLE0 dmx-pes-type-t -replace symbol DMX_PES_PCR0 dmx-pes-type-t -replace symbol DMX_PES_AUDIO1 dmx-pes-type-t -replace symbol DMX_PES_VIDEO1 dmx-pes-type-t -replace symbol DMX_PES_TELETEXT1 dmx-pes-type-t -replace symbol DMX_PES_SUBTITLE1 dmx-pes-type-t -replace symbol DMX_PES_PCR1 dmx-pes-type-t -replace symbol DMX_PES_AUDIO2 dmx-pes-type-t -replace symbol DMX_PES_VIDEO2 dmx-pes-type-t -replace symbol DMX_PES_TELETEXT2 dmx-pes-type-t -replace symbol DMX_PES_SUBTITLE2 dmx-pes-type-t -replace symbol DMX_PES_PCR2 dmx-pes-type-t -replace symbol DMX_PES_AUDIO3 dmx-pes-type-t -replace symbol DMX_PES_VIDEO3 dmx-pes-type-t -replace symbol DMX_PES_TELETEXT3 dmx-pes-type-t -replace symbol DMX_PES_SUBTITLE3 dmx-pes-type-t -replace symbol DMX_PES_PCR3 dmx-pes-type-t -replace symbol DMX_PES_OTHER dmx-pes-type-t - -# Ignore obsolete symbols -ignore define DMX_PES_AUDIO -ignore define DMX_PES_VIDEO -ignore define DMX_PES_TELETEXT -ignore define DMX_PES_SUBTITLE -ignore define DMX_PES_PCR - -# dmx_input_t symbols -replace enum dmx_input dmx-input-t -replace symbol DMX_IN_FRONTEND dmx-input-t -replace symbol DMX_IN_DVR dmx-input-t - -# dmx_source_t symbols -replace enum dmx_source dmx-source-t -replace symbol DMX_SOURCE_FRONT0 dmx-source-t -replace symbol DMX_SOURCE_FRONT1 dmx-source-t -replace symbol DMX_SOURCE_FRONT2 dmx-source-t -replace symbol DMX_SOURCE_FRONT3 dmx-source-t -replace symbol DMX_SOURCE_DVR0 dmx-source-t -replace symbol DMX_SOURCE_DVR1 dmx-source-t -replace symbol DMX_SOURCE_DVR2 dmx-source-t -replace symbol DMX_SOURCE_DVR3 dmx-source-t - - -# Flags for struct dmx_sct_filter_params -replace define DMX_CHECK_CRC dmx-sct-filter-params -replace define DMX_ONESHOT dmx-sct-filter-params -replace define DMX_IMMEDIATE_START dmx-sct-filter-params -replace define DMX_KERNEL_CLIENT dmx-sct-filter-params - -# some typedefs should point to struct/enums -replace typedef dmx_caps_t dmx-caps -replace typedef dmx_filter_t dmx-filter diff --git a/Documentation/linux_tv/frontend.h.rst.exceptions b/Documentation/linux_tv/frontend.h.rst.exceptions deleted file mode 100644 index 60f2cbb92656..000000000000 --- a/Documentation/linux_tv/frontend.h.rst.exceptions +++ /dev/null @@ -1,47 +0,0 @@ -# Ignore header name -ignore define _DVBFRONTEND_H_ - -# Group layer A-C symbols together -replace define DTV_ISDBT_LAYERA_FEC dtv-isdbt-layer-fec -replace define DTV_ISDBT_LAYERB_FEC dtv-isdbt-layer-fec -replace define DTV_ISDBT_LAYERC_FEC dtv-isdbt-layer-fec -replace define DTV_ISDBT_LAYERA_MODULATION dtv-isdbt-layer-modulation -replace define DTV_ISDBT_LAYERB_MODULATION dtv-isdbt-layer-modulation -replace define DTV_ISDBT_LAYERC_MODULATION dtv-isdbt-layer-modulation -replace define DTV_ISDBT_LAYERA_SEGMENT_COUNT dtv-isdbt-layer-segment-count -replace define DTV_ISDBT_LAYERB_SEGMENT_COUNT dtv-isdbt-layer-segment-count -replace define DTV_ISDBT_LAYERC_SEGMENT_COUNT dtv-isdbt-layer-segment-count -replace define DTV_ISDBT_LAYERA_TIME_INTERLEAVING dtv-isdbt-layer-time-interleaving -replace define DTV_ISDBT_LAYERB_TIME_INTERLEAVING dtv-isdbt-layer-time-interleaving -replace define DTV_ISDBT_LAYERC_TIME_INTERLEAVING dtv-isdbt-layer-time-interleaving - -# Ignore legacy defines -ignore define DTV_ISDBS_TS_ID_LEGACY -ignore define SYS_DVBC_ANNEX_AC -ignore define SYS_DMBTH - -# Ignore limits -ignore define DTV_MAX_COMMAND -ignore define MAX_DTV_STATS -ignore define DTV_IOCTL_MAX_MSGS - -# Stats enum is documented altogether -replace enum fecap_scale_params frontend-stat-properties -replace symbol FE_SCALE_COUNTER frontend-stat-properties -replace symbol FE_SCALE_DECIBEL frontend-stat-properties -replace symbol FE_SCALE_NOT_AVAILABLE frontend-stat-properties -replace symbol FE_SCALE_RELATIVE frontend-stat-properties - -# the same reference is used for both get and set ioctls -replace ioctl FE_SET_PROPERTY FE_GET_PROPERTY - -# Ignore struct used only internally at Kernel -ignore struct dtv_cmds_h - -# Typedefs that use the enum reference -replace typedef fe_sec_voltage_t fe-sec-voltage - -# Replaces for flag constants -replace define FE_TUNE_MODE_ONESHOT fe_set_frontend_tune_mode -replace define LNA_AUTO dtv-lna -replace define NO_STREAM_ID_FILTER dtv-stream-id diff --git a/Documentation/linux_tv/index.rst b/Documentation/linux_tv/index.rst deleted file mode 100644 index 67b3ef6ec3d7..000000000000 --- a/Documentation/linux_tv/index.rst +++ /dev/null @@ -1,83 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. include:: - -############################## -Linux Media Infrastructure API -############################## - -**Copyright** |copy| 2009-2016 : LinuxTV Developers - -Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.1 or -any later version published by the Free Software Foundation. A copy of -the license is included in the chapter entitled "GNU Free Documentation -License". - - -============ -Introduction -============ - -This document covers the Linux Kernel to Userspace API's used by video -and radio streaming devices, including video cameras, analog and digital -TV receiver cards, AM/FM receiver cards, Software Defined Radio (SDR), -streaming capture and output devices, codec devices and remote controllers. - -A typical media device hardware is shown at -:ref:`typical_media_device`. - - -.. _typical_media_device: - -.. figure:: media_api_files/typical_media_device.* - :alt: typical_media_device.svg - :align: center - - Typical Media Device - -The media infrastructure API was designed to control such devices. It is -divided into four parts. - -The :Ref:`first part ` covers radio, video capture and output, -cameras, analog TV devices and codecs. - -The :Ref:`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/T2, DVB-S/S2, DVB-C, ATSC, ISDB-T, ISDB-S, -DTMB, etc. The complete list of supported standards can be found at -:ref:`fe-delivery-system-t`. - -The :Ref:`third part ` covers the Remote Controller API. - -The :Ref:`fourth part ` covers the Media Controller API. - -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. - -For additional information and for the latest development code, see: -`https://linuxtv.org `__. - -For discussing improvements, reporting troubles, sending new drivers, -etc, please mail to: -`Linux Media Mailing List (LMML). `__. - - -.. toctree:: - :maxdepth: 1 - - media/v4l/v4l2 - media/dvb/dvbapi - media/rc/remote_controllers - media/mediactl/media-controller - media/gen-errors - media/fdl-appendix - -.. only:: html - - Retrieval - ========= - - * :ref:`genindex` diff --git a/Documentation/linux_tv/media/dvb/audio-bilingual-channel-select.rst b/Documentation/linux_tv/media/dvb/audio-bilingual-channel-select.rst deleted file mode 100644 index dbe20ff38e83..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-bilingual-channel-select.rst +++ /dev/null @@ -1,64 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_BILINGUAL_CHANNEL_SELECT: - -============================== -AUDIO_BILINGUAL_CHANNEL_SELECT -============================== - -Name ----- - -AUDIO_BILINGUAL_CHANNEL_SELECT - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_BILINGUAL_CHANNEL_SELECT, audio_channel_select_t) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_BILINGUAL_CHANNEL_SELECT for this command. - - - .. row 3 - - - audio_channel_select_t ch - - - Select the output format of the audio (mono left/right, stereo). - - -Description ------------ - -This ioctl is obsolete. Do not use in new drivers. It has been replaced -by the V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK`` control -for MPEG decoders controlled through V4L2. - -This ioctl call asks the Audio Device to select the requested channel -for bilingual streams if possible. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-channel-select.rst b/Documentation/linux_tv/media/dvb/audio-channel-select.rst deleted file mode 100644 index 69df4c0f2fb2..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-channel-select.rst +++ /dev/null @@ -1,63 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_CHANNEL_SELECT: - -==================== -AUDIO_CHANNEL_SELECT -==================== - -Name ----- - -AUDIO_CHANNEL_SELECT - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_CHANNEL_SELECT, audio_channel_select_t) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_CHANNEL_SELECT for this command. - - - .. row 3 - - - audio_channel_select_t ch - - - Select the output format of the audio (mono left/right, stereo). - - -Description ------------ - -This ioctl is for DVB devices only. To control a V4L2 decoder use the -V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK`` control instead. - -This ioctl call asks the Audio Device to select the requested channel if -possible. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-clear-buffer.rst b/Documentation/linux_tv/media/dvb/audio-clear-buffer.rst deleted file mode 100644 index a3dec29bdc69..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-clear-buffer.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_CLEAR_BUFFER: - -================== -AUDIO_CLEAR_BUFFER -================== - -Name ----- - -AUDIO_CLEAR_BUFFER - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_CLEAR_BUFFER) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_CLEAR_BUFFER for this command. - - -Description ------------ - -This ioctl call asks the Audio Device to clear all software and hardware -buffers of the audio decoder device. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-continue.rst b/Documentation/linux_tv/media/dvb/audio-continue.rst deleted file mode 100644 index 053627dd61e7..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-continue.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_CONTINUE: - -============== -AUDIO_CONTINUE -============== - -Name ----- - -AUDIO_CONTINUE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_CONTINUE) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_CONTINUE for this command. - - -Description ------------ - -This ioctl restarts the decoding and playing process previously paused -with AUDIO_PAUSE command. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-fclose.rst b/Documentation/linux_tv/media/dvb/audio-fclose.rst deleted file mode 100644 index e5d4225cd9d7..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-fclose.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio_fclose: - -================= -DVB audio close() -================= - -Name ----- - -DVB audio close() - - -Synopsis --------- - -.. cpp:function:: int close(int fd) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - -Description ------------ - -This system call closes a previously opened audio device. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/audio-fopen.rst b/Documentation/linux_tv/media/dvb/audio-fopen.rst deleted file mode 100644 index ec3b23aa79b3..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-fopen.rst +++ /dev/null @@ -1,104 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio_fopen: - -================ -DVB audio open() -================ - -Name ----- - -DVB audio open() - - -Synopsis --------- - -.. cpp:function:: int open(const char *deviceName, int flags) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - const char \*deviceName - - - Name of specific audio device. - - - .. row 2 - - - int flags - - - A bit-wise OR of the following flags: - - - .. row 3 - - - - - O_RDONLY read-only access - - - .. row 4 - - - - - O_RDWR read/write access - - - .. row 5 - - - - - O_NONBLOCK open in non-blocking mode - - - .. row 6 - - - - - (blocking mode is the default) - - -Description ------------ - -This system call opens a named audio device (e.g. -/dev/dvb/adapter0/audio0) for subsequent use. When an open() call has -succeeded, the device will be ready for use. The significance of -blocking or non-blocking mode is described in the documentation for -functions where there is a difference. It does not affect the semantics -of the open() call itself. A device opened in blocking mode can later be -put into non-blocking mode (and vice versa) using the F_SETFL command -of the fcntl system call. This is a standard system call, documented in -the Linux manual page for fcntl. Only one user can open the Audio Device -in O_RDWR mode. All other attempts to open the device in this mode will -fail, and an error code will be returned. If the Audio Device is opened -in O_RDONLY mode, the only ioctl call that can be used is -AUDIO_GET_STATUS. All other call will return with an error code. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``ENODEV`` - - - Device driver not loaded/available. - - - .. row 2 - - - ``EBUSY`` - - - Device or resource busy. - - - .. row 3 - - - ``EINVAL`` - - - Invalid argument. diff --git a/Documentation/linux_tv/media/dvb/audio-fwrite.rst b/Documentation/linux_tv/media/dvb/audio-fwrite.rst deleted file mode 100644 index ca95b9be0c2a..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-fwrite.rst +++ /dev/null @@ -1,82 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio_fwrite: - -================= -DVB audio write() -================= - -Name ----- - -DVB audio write() - - -Synopsis --------- - -.. cpp:function:: size_t write(int fd, const void *buf, size_t count) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - void \*buf - - - Pointer to the buffer containing the PES data. - - - .. row 3 - - - size_t count - - - Size of buf. - - -Description ------------ - -This system call can only be used if AUDIO_SOURCE_MEMORY is selected -in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in -PES format. If O_NONBLOCK is not specified the function will block -until buffer space is available. The amount of data to be transferred is -implied by count. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EPERM`` - - - Mode AUDIO_SOURCE_MEMORY not selected. - - - .. row 2 - - - ``ENOMEM`` - - - Attempted to write more data than the internal buffer can hold. - - - .. row 3 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/audio-get-capabilities.rst b/Documentation/linux_tv/media/dvb/audio-get-capabilities.rst deleted file mode 100644 index e274a8d53785..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-get-capabilities.rst +++ /dev/null @@ -1,60 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_GET_CAPABILITIES: - -====================== -AUDIO_GET_CAPABILITIES -====================== - -Name ----- - -AUDIO_GET_CAPABILITIES - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_GET_CAPABILITIES, unsigned int *cap) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_GET_CAPABILITIES for this command. - - - .. row 3 - - - unsigned int \*cap - - - Returns a bit array of supported sound formats. - - -Description ------------ - -This ioctl call asks the Audio Device to tell us about the decoding -capabilities of the audio hardware. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-get-pts.rst b/Documentation/linux_tv/media/dvb/audio-get-pts.rst deleted file mode 100644 index 5f875508b833..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-get-pts.rst +++ /dev/null @@ -1,69 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_GET_PTS: - -============= -AUDIO_GET_PTS -============= - -Name ----- - -AUDIO_GET_PTS - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_GET_PTS, __u64 *pts) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_GET_PTS for this command. - - - .. row 3 - - - __u64 \*pts - - - Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 / - ISO/IEC 13818-1. - - The PTS should belong to the currently played frame if possible, - but may also be a value close to it like the PTS of the last - decoded frame or the last PTS extracted by the PES parser. - - -Description ------------ - -This ioctl is obsolete. Do not use in new drivers. If you need this -functionality, then please contact the linux-media mailing list -(`https://linuxtv.org/lists.php `__). - -This ioctl call asks the Audio Device to return the current PTS -timestamp. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-get-status.rst b/Documentation/linux_tv/media/dvb/audio-get-status.rst deleted file mode 100644 index cbd822773d85..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-get-status.rst +++ /dev/null @@ -1,60 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_GET_STATUS: - -================ -AUDIO_GET_STATUS -================ - -Name ----- - -AUDIO_GET_STATUS - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_GET_STATUS, struct audio_status *status) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_GET_STATUS for this command. - - - .. row 3 - - - struct audio_status \*status - - - Returns the current state of Audio Device. - - -Description ------------ - -This ioctl call asks the Audio Device to return the current state of the -Audio Device. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-pause.rst b/Documentation/linux_tv/media/dvb/audio-pause.rst deleted file mode 100644 index 9ca263e90c6c..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-pause.rst +++ /dev/null @@ -1,55 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_PAUSE: - -=========== -AUDIO_PAUSE -=========== - -Name ----- - -AUDIO_PAUSE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_PAUSE) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_PAUSE for this command. - - -Description ------------ - -This ioctl call suspends the audio stream being played. Decoding and -playing are paused. It is then possible to restart again decoding and -playing process of the audio stream using AUDIO_CONTINUE command. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-play.rst b/Documentation/linux_tv/media/dvb/audio-play.rst deleted file mode 100644 index db4d7203acc5..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-play.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_PLAY: - -========== -AUDIO_PLAY -========== - -Name ----- - -AUDIO_PLAY - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_PLAY) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_PLAY for this command. - - -Description ------------ - -This ioctl call asks the Audio Device to start playing an audio stream -from the selected source. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-select-source.rst b/Documentation/linux_tv/media/dvb/audio-select-source.rst deleted file mode 100644 index b806d806a46f..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-select-source.rst +++ /dev/null @@ -1,62 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SELECT_SOURCE: - -=================== -AUDIO_SELECT_SOURCE -=================== - -Name ----- - -AUDIO_SELECT_SOURCE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_SELECT_SOURCE, audio_stream_source_t source) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SELECT_SOURCE for this command. - - - .. row 3 - - - audio_stream_source_t source - - - Indicates the source that shall be used for the Audio stream. - - -Description ------------ - -This ioctl call informs the audio device which source shall be used for -the input data. The possible sources are demux or memory. If -AUDIO_SOURCE_MEMORY is selected, the data is fed to the Audio Device -through the write command. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-set-attributes.rst b/Documentation/linux_tv/media/dvb/audio-set-attributes.rst deleted file mode 100644 index 18667cea2cdf..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-attributes.rst +++ /dev/null @@ -1,71 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_ATTRIBUTES: - -==================== -AUDIO_SET_ATTRIBUTES -==================== - -Name ----- - -AUDIO_SET_ATTRIBUTES - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = AUDIO_SET_ATTRIBUTES, audio_attributes_t attr ) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_ATTRIBUTES for this command. - - - .. row 3 - - - audio_attributes_t attr - - - audio attributes according to section ?? - - -Description ------------ - -This ioctl is intended for DVD playback and allows you to set certain -information about the audio stream. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - attr is not a valid or supported attribute setting. diff --git a/Documentation/linux_tv/media/dvb/audio-set-av-sync.rst b/Documentation/linux_tv/media/dvb/audio-set-av-sync.rst deleted file mode 100644 index 6f7e26fa4cd1..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-av-sync.rst +++ /dev/null @@ -1,70 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_AV_SYNC: - -================= -AUDIO_SET_AV_SYNC -================= - -Name ----- - -AUDIO_SET_AV_SYNC - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_SET_AV_SYNC, boolean state) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_AV_SYNC for this command. - - - .. row 3 - - - boolean state - - - Tells the DVB subsystem if A/V synchronization shall be ON or OFF. - - - .. row 4 - - - - - TRUE AV-sync ON - - - .. row 5 - - - - - FALSE AV-sync OFF - - -Description ------------ - -This ioctl call asks the Audio Device to turn ON or OFF A/V -synchronization. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-set-bypass-mode.rst b/Documentation/linux_tv/media/dvb/audio-set-bypass-mode.rst deleted file mode 100644 index 30bcaca14c3f..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-bypass-mode.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_BYPASS_MODE: - -===================== -AUDIO_SET_BYPASS_MODE -===================== - -Name ----- - -AUDIO_SET_BYPASS_MODE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_SET_BYPASS_MODE, boolean mode) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_BYPASS_MODE for this command. - - - .. row 3 - - - boolean mode - - - Enables or disables the decoding of the current Audio stream in - the DVB subsystem. - - - .. row 4 - - - - - TRUE Bypass is disabled - - - .. row 5 - - - - - FALSE Bypass is enabled - - -Description ------------ - -This ioctl call asks the Audio Device to bypass the Audio decoder and -forward the stream without decoding. This mode shall be used if streams -that can’t be handled by the DVB system shall be decoded. Dolby -DigitalTM streams are automatically forwarded by the DVB subsystem if -the hardware can handle it. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-set-ext-id.rst b/Documentation/linux_tv/media/dvb/audio-set-ext-id.rst deleted file mode 100644 index 049414db8ef6..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-ext-id.rst +++ /dev/null @@ -1,71 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_EXT_ID: - -================ -AUDIO_SET_EXT_ID -================ - -Name ----- - -AUDIO_SET_EXT_ID - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = AUDIO_SET_EXT_ID, int id) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_EXT_ID for this command. - - - .. row 3 - - - int id - - - audio sub_stream_id - - -Description ------------ - -This ioctl can be used to set the extension id for MPEG streams in DVD -playback. Only the first 3 bits are recognized. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - id is not a valid id. diff --git a/Documentation/linux_tv/media/dvb/audio-set-id.rst b/Documentation/linux_tv/media/dvb/audio-set-id.rst deleted file mode 100644 index a664dc1955cb..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-id.rst +++ /dev/null @@ -1,65 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_ID: - -============ -AUDIO_SET_ID -============ - -Name ----- - -AUDIO_SET_ID - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_SET_ID, int id) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_ID for this command. - - - .. row 3 - - - int id - - - audio sub-stream id - - -Description ------------ - -This ioctl selects which sub-stream is to be decoded if a program or -system stream is sent to the video device. If no audio stream type is -set the id has to be in [0xC0,0xDF] for MPEG sound, in [0x80,0x87] for -AC3 and in [0xA0,0xA7] for LPCM. More specifications may follow for -other stream types. If the stream type is set the id just specifies the -substream id of the audio stream and only the first 5 bits are -recognized. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-set-karaoke.rst b/Documentation/linux_tv/media/dvb/audio-set-karaoke.rst deleted file mode 100644 index b55f8380b9cd..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-karaoke.rst +++ /dev/null @@ -1,70 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_KARAOKE: - -================= -AUDIO_SET_KARAOKE -================= - -Name ----- - -AUDIO_SET_KARAOKE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = AUDIO_SET_KARAOKE, audio_karaoke_t *karaoke) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_KARAOKE for this command. - - - .. row 3 - - - audio_karaoke_t \*karaoke - - - karaoke settings according to section ??. - - -Description ------------ - -This ioctl allows one to set the mixer settings for a karaoke DVD. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - karaoke is not a valid or supported karaoke setting. diff --git a/Documentation/linux_tv/media/dvb/audio-set-mixer.rst b/Documentation/linux_tv/media/dvb/audio-set-mixer.rst deleted file mode 100644 index 67821729c2b6..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-mixer.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_MIXER: - -=============== -AUDIO_SET_MIXER -=============== - -Name ----- - -AUDIO_SET_MIXER - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_SET_MIXER, audio_mixer_t *mix) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_ID for this command. - - - .. row 3 - - - audio_mixer_t \*mix - - - mixer settings. - - -Description ------------ - -This ioctl lets you adjust the mixer settings of the audio decoder. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-set-mute.rst b/Documentation/linux_tv/media/dvb/audio-set-mute.rst deleted file mode 100644 index ebaba95ee278..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-mute.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_MUTE: - -============== -AUDIO_SET_MUTE -============== - -Name ----- - -AUDIO_SET_MUTE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_SET_MUTE, boolean state) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_MUTE for this command. - - - .. row 3 - - - boolean state - - - Indicates if audio device shall mute or not. - - - .. row 4 - - - - - TRUE Audio Mute - - - .. row 5 - - - - - FALSE Audio Un-mute - - -Description ------------ - -This ioctl is for DVB devices only. To control a V4L2 decoder use the -V4L2 :ref:`VIDIOC_DECODER_CMD` with the -``V4L2_DEC_CMD_START_MUTE_AUDIO`` flag instead. - -This ioctl call asks the audio device to mute the stream that is -currently being played. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio-set-streamtype.rst b/Documentation/linux_tv/media/dvb/audio-set-streamtype.rst deleted file mode 100644 index dfb9a6c00d88..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-set-streamtype.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_SET_STREAMTYPE: - -==================== -AUDIO_SET_STREAMTYPE -==================== - -Name ----- - -AUDIO_SET_STREAMTYPE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = AUDIO_SET_STREAMTYPE, int type) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_SET_STREAMTYPE for this command. - - - .. row 3 - - - int type - - - stream type - - -Description ------------ - -This ioctl tells the driver which kind of audio stream to expect. This -is useful if the stream offers several audio sub-streams like LPCM and -AC3. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - type is not a valid or supported stream type. diff --git a/Documentation/linux_tv/media/dvb/audio-stop.rst b/Documentation/linux_tv/media/dvb/audio-stop.rst deleted file mode 100644 index 449127e3f2aa..000000000000 --- a/Documentation/linux_tv/media/dvb/audio-stop.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _AUDIO_STOP: - -========== -AUDIO_STOP -========== - -Name ----- - -AUDIO_STOP - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = AUDIO_STOP) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals AUDIO_STOP for this command. - - -Description ------------ - -This ioctl call asks the Audio Device to stop playing the current -stream. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/audio.rst b/Documentation/linux_tv/media/dvb/audio.rst deleted file mode 100644 index 155622185ea4..000000000000 --- a/Documentation/linux_tv/media/dvb/audio.rst +++ /dev/null @@ -1,26 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_audio: - -################ -DVB Audio Device -################ -The DVB audio device controls the MPEG2 audio decoder of the DVB -hardware. It can be accessed through ``/dev/dvb/adapter?/audio?``. Data -types and and ioctl definitions can be accessed by including -``linux/dvb/audio.h`` in your application. - -Please note that some DVB cards don’t have their own MPEG decoder, which -results in the omission of the audio and video device. - -These ioctls were also used by V4L2 to control MPEG decoders implemented -in V4L2. The use of these ioctls for that purpose has been made obsolete -and proper V4L2 ioctls or controls have been created to replace that -functionality. - - -.. toctree:: - :maxdepth: 1 - - audio_data_types - audio_function_calls diff --git a/Documentation/linux_tv/media/dvb/audio_data_types.rst b/Documentation/linux_tv/media/dvb/audio_data_types.rst deleted file mode 100644 index 4a53127eb13a..000000000000 --- a/Documentation/linux_tv/media/dvb/audio_data_types.rst +++ /dev/null @@ -1,176 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio_data_types: - -**************** -Audio Data Types -**************** - -This section describes the structures, data types and defines used when -talking to the audio device. - - -.. _audio-stream-source-t: - -audio_stream_source_t -===================== - -The audio stream source is set through the AUDIO_SELECT_SOURCE call -and can take the following values, depending on whether we are replaying -from an internal (demux) or external (user write) source. - - -.. code-block:: c - - typedef enum { - AUDIO_SOURCE_DEMUX, - AUDIO_SOURCE_MEMORY - } audio_stream_source_t; - -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 ``write()`` system call. - - -.. _audio-play-state-t: - -audio_play_state_t -================== - -The following values can be returned by the AUDIO_GET_STATUS call -representing the state of audio playback. - - -.. code-block:: c - - typedef enum { - AUDIO_STOPPED, - AUDIO_PLAYING, - AUDIO_PAUSED - } audio_play_state_t; - - -.. _audio-channel-select-t: - -audio_channel_select_t -====================== - -The audio channel selected via AUDIO_CHANNEL_SELECT is determined by -the following values. - - -.. code-block:: c - - typedef enum { - AUDIO_STEREO, - AUDIO_MONO_LEFT, - AUDIO_MONO_RIGHT, - AUDIO_MONO, - AUDIO_STEREO_SWAPPED - } audio_channel_select_t; - - -.. _audio-status: - -struct audio_status -=================== - -The AUDIO_GET_STATUS call returns the following structure informing -about various states of the playback operation. - - -.. code-block:: c - - typedef struct audio_status { - boolean AV_sync_state; - boolean mute_state; - audio_play_state_t play_state; - audio_stream_source_t stream_source; - audio_channel_select_t channel_select; - boolean bypass_mode; - audio_mixer_t mixer_state; - } audio_status_t; - - -.. _audio-mixer: - -struct audio_mixer -================== - -The following structure is used by the AUDIO_SET_MIXER call to set the -audio volume. - - -.. code-block:: c - - typedef struct audio_mixer { - unsigned int volume_left; - unsigned int volume_right; - } audio_mixer_t; - - -.. _audio_encodings: - -audio encodings -=============== - -A call to AUDIO_GET_CAPABILITIES returns an unsigned integer with the -following bits set according to the hardwares capabilities. - - -.. code-block:: c - - #define AUDIO_CAP_DTS 1 - #define AUDIO_CAP_LPCM 2 - #define AUDIO_CAP_MP1 4 - #define AUDIO_CAP_MP2 8 - #define AUDIO_CAP_MP3 16 - #define AUDIO_CAP_AAC 32 - #define AUDIO_CAP_OGG 64 - #define AUDIO_CAP_SDDS 128 - #define AUDIO_CAP_AC3 256 - - -.. _audio-karaoke: - -struct audio_karaoke -==================== - -The ioctl AUDIO_SET_KARAOKE uses the following format: - - -.. code-block:: c - - typedef - struct audio_karaoke { - int vocal1; - int vocal2; - int melody; - } audio_karaoke_t; - -If Vocal1 or Vocal2 are non-zero, they get mixed into left and right t -at 70% each. If both, Vocal1 and Vocal2 are non-zero, Vocal1 gets mixed -into the left channel and Vocal2 into the right channel at 100% each. Ff -Melody is non-zero, the melody channel gets mixed into left and right. - - -.. _audio-attributes-t: - -audio attributes -================ - -The following attributes can be set by a call to AUDIO_SET_ATTRIBUTES: - - -.. code-block:: c - - typedef uint16_t audio_attributes_t; - /* bits: descr. */ - /* 15-13 audio coding mode (0=ac3, 2=mpeg1, 3=mpeg2ext, 4=LPCM, 6=DTS, */ - /* 12 multichannel extension */ - /* 11-10 audio type (0=not spec, 1=language included) */ - /* 9- 8 audio application mode (0=not spec, 1=karaoke, 2=surround) */ - /* 7- 6 Quantization / DRC (mpeg audio: 1=DRC exists)(lpcm: 0=16bit, */ - /* 5- 4 Sample frequency fs (0=48kHz, 1=96kHz) */ - /* 2- 0 number of audio channels (n+1 channels) */ diff --git a/Documentation/linux_tv/media/dvb/audio_function_calls.rst b/Documentation/linux_tv/media/dvb/audio_function_calls.rst deleted file mode 100644 index 0bb56f0cfed4..000000000000 --- a/Documentation/linux_tv/media/dvb/audio_function_calls.rst +++ /dev/null @@ -1,34 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio_function_calls: - -******************** -Audio Function Calls -******************** - -.. toctree:: - :maxdepth: 1 - - audio-fopen - audio-fclose - audio-fwrite - audio-stop - audio-play - audio-pause - audio-continue - audio-select-source - audio-set-mute - audio-set-av-sync - audio-set-bypass-mode - audio-channel-select - audio-bilingual-channel-select - audio-get-pts - audio-get-status - audio-get-capabilities - audio-clear-buffer - audio-set-id - audio-set-mixer - audio-set-streamtype - audio-set-ext-id - audio-set-attributes - audio-set-karaoke diff --git a/Documentation/linux_tv/media/dvb/audio_h.rst b/Documentation/linux_tv/media/dvb/audio_h.rst deleted file mode 100644 index e00c3010fdf9..000000000000 --- a/Documentation/linux_tv/media/dvb/audio_h.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio_h: - -********************* -DVB Audio Header File -********************* - -.. kernel-include:: $BUILDDIR/audio.h.rst diff --git a/Documentation/linux_tv/media/dvb/ca-fclose.rst b/Documentation/linux_tv/media/dvb/ca-fclose.rst deleted file mode 100644 index 16d7a1e76193..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-fclose.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _ca_fclose: - -============== -DVB CA close() -============== - -Name ----- - -DVB CA close() - - -Synopsis --------- - -.. cpp:function:: int close(int fd) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - -Description ------------ - -This system call closes a previously opened audio device. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/ca-fopen.rst b/Documentation/linux_tv/media/dvb/ca-fopen.rst deleted file mode 100644 index f284461cce20..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-fopen.rst +++ /dev/null @@ -1,109 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _ca_fopen: - -============= -DVB CA open() -============= - -Name ----- - -DVB CA open() - - -Synopsis --------- - -.. cpp:function:: int open(const char *deviceName, int flags) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - const char \*deviceName - - - Name of specific video device. - - - .. row 2 - - - int flags - - - A bit-wise OR of the following flags: - - - .. row 3 - - - - - O_RDONLY read-only access - - - .. row 4 - - - - - O_RDWR read/write access - - - .. row 5 - - - - - O_NONBLOCK open in non-blocking mode - - - .. row 6 - - - - - (blocking mode is the default) - - -Description ------------ - -This system call opens a named ca device (e.g. /dev/ost/ca) for -subsequent use. - -When an open() call has succeeded, the device will be ready for use. The -significance of blocking or non-blocking mode is described in the -documentation for functions where there is a difference. It does not -affect the semantics of the open() call itself. A device opened in -blocking mode can later be put into non-blocking mode (and vice versa) -using the F_SETFL command of the fcntl system call. This is a standard -system call, documented in the Linux manual page for fcntl. Only one -user can open the CA Device in O_RDWR mode. All other attempts to open -the device in this mode will fail, and an error code will be returned. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``ENODEV`` - - - Device driver not loaded/available. - - - .. row 2 - - - ``EINTERNAL`` - - - Internal error. - - - .. row 3 - - - ``EBUSY`` - - - Device or resource busy. - - - .. row 4 - - - ``EINVAL`` - - - Invalid argument. diff --git a/Documentation/linux_tv/media/dvb/ca-get-cap.rst b/Documentation/linux_tv/media/dvb/ca-get-cap.rst deleted file mode 100644 index 891fbf2d9a84..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-get-cap.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_GET_CAP: - -========== -CA_GET_CAP -========== - -Name ----- - -CA_GET_CAP - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_GET_CAP, ca_caps_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_GET_CAP for this command. - - - .. row 3 - - - ca_caps_t * - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-get-descr-info.rst b/Documentation/linux_tv/media/dvb/ca-get-descr-info.rst deleted file mode 100644 index cf8e8242db66..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-get-descr-info.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_GET_DESCR_INFO: - -================= -CA_GET_DESCR_INFO -================= - -Name ----- - -CA_GET_DESCR_INFO - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_GET_DESCR_INFO, ca_descr_info_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_GET_DESCR_INFO for this command. - - - .. row 3 - - - ca_descr_info_t \* - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-get-msg.rst b/Documentation/linux_tv/media/dvb/ca-get-msg.rst deleted file mode 100644 index 56004d5ea3ab..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-get-msg.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_GET_MSG: - -========== -CA_GET_MSG -========== - -Name ----- - -CA_GET_MSG - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_GET_MSG, ca_msg_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_GET_MSG for this command. - - - .. row 3 - - - ca_msg_t \* - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-get-slot-info.rst b/Documentation/linux_tv/media/dvb/ca-get-slot-info.rst deleted file mode 100644 index 9fea28ccad0f..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-get-slot-info.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_GET_SLOT_INFO: - -================ -CA_GET_SLOT_INFO -================ - -Name ----- - -CA_GET_SLOT_INFO - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_GET_SLOT_INFO, ca_slot_info_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_GET_SLOT_INFO for this command. - - - .. row 3 - - - ca_slot_info_t \* - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-reset.rst b/Documentation/linux_tv/media/dvb/ca-reset.rst deleted file mode 100644 index d5a50088fc2d..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-reset.rst +++ /dev/null @@ -1,53 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_RESET: - -======== -CA_RESET -======== - -Name ----- - -CA_RESET - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_RESET) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_RESET for this command. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-send-msg.rst b/Documentation/linux_tv/media/dvb/ca-send-msg.rst deleted file mode 100644 index 18974e61e788..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-send-msg.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_SEND_MSG: - -=========== -CA_SEND_MSG -=========== - -Name ----- - -CA_SEND_MSG - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_SEND_MSG, ca_msg_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_SEND_MSG for this command. - - - .. row 3 - - - ca_msg_t \* - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-set-descr.rst b/Documentation/linux_tv/media/dvb/ca-set-descr.rst deleted file mode 100644 index 293e6da5059f..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-set-descr.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_SET_DESCR: - -============ -CA_SET_DESCR -============ - -Name ----- - -CA_SET_DESCR - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_SET_DESCR, ca_descr_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_SET_DESCR for this command. - - - .. row 3 - - - ca_descr_t \* - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca-set-pid.rst b/Documentation/linux_tv/media/dvb/ca-set-pid.rst deleted file mode 100644 index 5afa2fae3206..000000000000 --- a/Documentation/linux_tv/media/dvb/ca-set-pid.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _CA_SET_PID: - -========== -CA_SET_PID -========== - -Name ----- - -CA_SET_PID - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = CA_SET_PID, ca_pid_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals CA_SET_PID for this command. - - - .. row 3 - - - ca_pid_t \* - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/ca.rst b/Documentation/linux_tv/media/dvb/ca.rst deleted file mode 100644 index 14b14abda1ae..000000000000 --- a/Documentation/linux_tv/media/dvb/ca.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_ca: - -############# -DVB CA Device -############# -The DVB CA device controls the conditional access hardware. It can be -accessed through ``/dev/dvb/adapter?/ca?``. Data types and and ioctl -definitions can be accessed by including ``linux/dvb/ca.h`` in your -application. - - -.. toctree:: - :maxdepth: 1 - - ca_data_types - ca_function_calls diff --git a/Documentation/linux_tv/media/dvb/ca_data_types.rst b/Documentation/linux_tv/media/dvb/ca_data_types.rst deleted file mode 100644 index 025f910ae945..000000000000 --- a/Documentation/linux_tv/media/dvb/ca_data_types.rst +++ /dev/null @@ -1,110 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _ca_data_types: - -************* -CA Data Types -************* - - -.. _ca-slot-info: - -ca_slot_info_t -============== - - -.. code-block:: c - - typedef struct ca_slot_info { - int num; /* slot number */ - - int type; /* CA interface this slot supports */ - #define CA_CI 1 /* CI high level interface */ - #define CA_CI_LINK 2 /* CI link layer level interface */ - #define CA_CI_PHYS 4 /* CI physical layer level interface */ - #define CA_DESCR 8 /* built-in descrambler */ - #define CA_SC 128 /* simple smart card interface */ - - unsigned int flags; - #define CA_CI_MODULE_PRESENT 1 /* module (or card) inserted */ - #define CA_CI_MODULE_READY 2 - } ca_slot_info_t; - - -.. _ca-descr-info: - -ca_descr_info_t -=============== - - -.. code-block:: c - - typedef struct ca_descr_info { - unsigned int num; /* number of available descramblers (keys) */ - unsigned int type; /* type of supported scrambling system */ - #define CA_ECD 1 - #define CA_NDS 2 - #define CA_DSS 4 - } ca_descr_info_t; - - -.. _ca-caps: - -ca_caps_t -========= - - -.. code-block:: c - - typedef struct ca_caps { - unsigned int slot_num; /* total number of CA card and module slots */ - unsigned int slot_type; /* OR of all supported types */ - unsigned int descr_num; /* total number of descrambler slots (keys) */ - unsigned int descr_type;/* OR of all supported types */ - } ca_cap_t; - - -.. _ca-msg: - -ca_msg_t -======== - - -.. code-block:: c - - /* a message to/from a CI-CAM */ - typedef struct ca_msg { - unsigned int index; - unsigned int type; - unsigned int length; - unsigned char msg[256]; - } ca_msg_t; - - -.. _ca-descr: - -ca_descr_t -========== - - -.. code-block:: c - - typedef struct ca_descr { - unsigned int index; - unsigned int parity; - unsigned char cw[8]; - } ca_descr_t; - - -.. _ca-pid: - -ca-pid -====== - - -.. code-block:: c - - typedef struct ca_pid { - unsigned int pid; - int index; /* -1 == disable*/ - } ca_pid_t; diff --git a/Documentation/linux_tv/media/dvb/ca_function_calls.rst b/Documentation/linux_tv/media/dvb/ca_function_calls.rst deleted file mode 100644 index c085a0ebbc05..000000000000 --- a/Documentation/linux_tv/media/dvb/ca_function_calls.rst +++ /dev/null @@ -1,21 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _ca_function_calls: - -***************** -CA Function Calls -***************** - -.. toctree:: - :maxdepth: 1 - - ca-fopen - ca-fclose - ca-reset - ca-get-cap - ca-get-slot-info - ca-get-descr-info - ca-get-msg - ca-send-msg - ca-set-descr - ca-set-pid diff --git a/Documentation/linux_tv/media/dvb/ca_h.rst b/Documentation/linux_tv/media/dvb/ca_h.rst deleted file mode 100644 index f513592ef529..000000000000 --- a/Documentation/linux_tv/media/dvb/ca_h.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _ca_h: - -********************************** -DVB Conditional Access Header File -********************************** - -.. kernel-include:: $BUILDDIR/ca.h.rst diff --git a/Documentation/linux_tv/media/dvb/demux.rst b/Documentation/linux_tv/media/dvb/demux.rst deleted file mode 100644 index b12b5a2dac94..000000000000 --- a/Documentation/linux_tv/media/dvb/demux.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_demux: - -################ -DVB Demux Device -################ -The DVB demux device controls the filters of the DVB hardware/software. -It can be accessed through ``/dev/adapter?/demux?``. Data types and and -ioctl definitions can be accessed by including ``linux/dvb/dmx.h`` in -your application. - - -.. toctree:: - :maxdepth: 1 - - dmx_types - dmx_fcalls diff --git a/Documentation/linux_tv/media/dvb/dmx-add-pid.rst b/Documentation/linux_tv/media/dvb/dmx-add-pid.rst deleted file mode 100644 index 6343035653ac..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-add-pid.rst +++ /dev/null @@ -1,61 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_ADD_PID: - -=========== -DMX_ADD_PID -=========== - -Name ----- - -DMX_ADD_PID - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = DMX_ADD_PID, __u16 *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_ADD_PID for this command. - - - .. row 3 - - - __u16 * - - - PID number to be filtered. - - -Description ------------ - -This ioctl call allows to add multiple PIDs to a transport stream filter -previously set up with DMX_SET_PES_FILTER and output equal to -DMX_OUT_TSDEMUX_TAP. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-fclose.rst b/Documentation/linux_tv/media/dvb/dmx-fclose.rst deleted file mode 100644 index f54c2a1220c1..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-fclose.rst +++ /dev/null @@ -1,55 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_fclose: - -================= -DVB demux close() -================= - -Name ----- - -DVB demux close() - - -Synopsis --------- - -.. cpp:function:: int close(int fd) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - -Description ------------ - -This system call deactivates and deallocates a filter that was -previously allocated via the open() call. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/dmx-fopen.rst b/Documentation/linux_tv/media/dvb/dmx-fopen.rst deleted file mode 100644 index 76dbb42713ad..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-fopen.rst +++ /dev/null @@ -1,108 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_fopen: - -================ -DVB demux open() -================ - -Name ----- - -DVB demux open() - - -Synopsis --------- - -.. cpp:function:: int open(const char *deviceName, int flags) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - const char \*deviceName - - - Name of demux device. - - - .. row 2 - - - int flags - - - A bit-wise OR of the following flags: - - - .. row 3 - - - - - O_RDWR read/write access - - - .. row 4 - - - - - O_NONBLOCK open in non-blocking mode - - - .. row 5 - - - - - (blocking mode is the default) - - -Description ------------ - -This system call, used with a device name of /dev/dvb/adapter0/demux0, -allocates a new filter and returns a handle which can be used for -subsequent control of that filter. This call has to be made for each -filter to be used, i.e. every returned file descriptor is a reference to -a single filter. /dev/dvb/adapter0/dvr0 is a logical device to be used -for retrieving Transport Streams for digital video recording. When -reading from this device a transport stream containing the packets from -all PES filters set in the corresponding demux device -(/dev/dvb/adapter0/demux0) having the output set to DMX_OUT_TS_TAP. A -recorded Transport Stream is replayed by writing to this device. - -The significance of blocking or non-blocking mode is described in the -documentation for functions where there is a difference. It does not -affect the semantics of the open() call itself. A device opened in -blocking mode can later be put into non-blocking mode (and vice versa) -using the F_SETFL command of the fcntl system call. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``ENODEV`` - - - Device driver not loaded/available. - - - .. row 2 - - - ``EINVAL`` - - - Invalid argument. - - - .. row 3 - - - ``EMFILE`` - - - “Too many open files”, i.e. no more filters available. - - - .. row 4 - - - ``ENOMEM`` - - - The driver failed to allocate enough memory. diff --git a/Documentation/linux_tv/media/dvb/dmx-fread.rst b/Documentation/linux_tv/media/dvb/dmx-fread.rst deleted file mode 100644 index d25b19e4f696..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-fread.rst +++ /dev/null @@ -1,108 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_fread: - -================ -DVB demux read() -================ - -Name ----- - -DVB demux read() - - -Synopsis --------- - -.. cpp:function:: size_t read(int fd, void *buf, size_t count) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - void \*buf - - - Pointer to the buffer to be used for returned filtered data. - - - .. row 3 - - - size_t count - - - Size of buf. - - -Description ------------ - -This system call returns filtered data, which might be section or PES -data. The filtered data is transferred from the driver’s internal -circular buffer to buf. The maximum amount of data to be transferred is -implied by count. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EWOULDBLOCK`` - - - No data to return and O_NONBLOCK was specified. - - - .. row 2 - - - ``EBADF`` - - - fd is not a valid open file descriptor. - - - .. row 3 - - - ``ECRC`` - - - Last section had a CRC error - no data returned. The buffer is - flushed. - - - .. row 4 - - - ``EOVERFLOW`` - - - - - - .. row 5 - - - - - The filtered data was not read from the buffer in due time, - resulting in non-read data being lost. The buffer is flushed. - - - .. row 6 - - - ``ETIMEDOUT`` - - - The section was not loaded within the stated timeout period. See - ioctl DMX_SET_FILTER for how to set a timeout. - - - .. row 7 - - - ``EFAULT`` - - - The driver failed to write to the callers buffer due to an invalid - \*buf pointer. diff --git a/Documentation/linux_tv/media/dvb/dmx-fwrite.rst b/Documentation/linux_tv/media/dvb/dmx-fwrite.rst deleted file mode 100644 index 9efd81a1b5c8..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-fwrite.rst +++ /dev/null @@ -1,89 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_fwrite: - -================= -DVB demux write() -================= - -Name ----- - -DVB demux write() - - -Synopsis --------- - -.. cpp:function:: ssize_t write(int fd, const void *buf, size_t count) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - void \*buf - - - Pointer to the buffer containing the Transport Stream. - - - .. row 3 - - - size_t count - - - Size of buf. - - -Description ------------ - -This system call is only provided by the logical device -/dev/dvb/adapter0/dvr0, associated with the physical demux device that -provides the actual DVR functionality. It is used for replay of a -digitally recorded Transport Stream. Matching filters have to be defined -in the corresponding physical demux device, /dev/dvb/adapter0/demux0. -The amount of data to be transferred is implied by count. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EWOULDBLOCK`` - - - No data was written. This might happen if O_NONBLOCK was - specified and there is no more buffer space available (if - O_NONBLOCK is not specified the function will block until buffer - space is available). - - - .. row 2 - - - ``EBUSY`` - - - This error code indicates that there are conflicting requests. The - corresponding demux device is setup to receive data from the - front- end. Make sure that these filters are stopped and that the - filters with input set to DMX_IN_DVR are started. - - - .. row 3 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/dmx-get-caps.rst b/Documentation/linux_tv/media/dvb/dmx-get-caps.rst deleted file mode 100644 index d0549eb7fbd3..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-get-caps.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_GET_CAPS: - -============ -DMX_GET_CAPS -============ - -Name ----- - -DMX_GET_CAPS - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = DMX_GET_CAPS, dmx_caps_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_GET_CAPS for this command. - - - .. row 3 - - - dmx_caps_t * - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-get-event.rst b/Documentation/linux_tv/media/dvb/dmx-get-event.rst deleted file mode 100644 index 6a7550c63bb5..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-get-event.rst +++ /dev/null @@ -1,76 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_GET_EVENT: - -============= -DMX_GET_EVENT -============= - -Name ----- - -DMX_GET_EVENT - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_GET_EVENT, struct dmx_event *ev) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_GET_EVENT for this command. - - - .. row 3 - - - struct dmx_event \*ev - - - Pointer to the location where the event is to be stored. - - -Description ------------ - -This ioctl call returns an 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. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EWOULDBLOCK`` - - - There is no event pending, and the device is in non-blocking mode. diff --git a/Documentation/linux_tv/media/dvb/dmx-get-pes-pids.rst b/Documentation/linux_tv/media/dvb/dmx-get-pes-pids.rst deleted file mode 100644 index ba5d30c913c8..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-get-pes-pids.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_GET_PES_PIDS: - -================ -DMX_GET_PES_PIDS -================ - -Name ----- - -DMX_GET_PES_PIDS - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = DMX_GET_PES_PIDS, __u16[5]) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_GET_PES_PIDS for this command. - - - .. row 3 - - - __u16[5] - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-get-stc.rst b/Documentation/linux_tv/media/dvb/dmx-get-stc.rst deleted file mode 100644 index bd477bb67082..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-get-stc.rst +++ /dev/null @@ -1,77 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_GET_STC: - -=========== -DMX_GET_STC -=========== - -Name ----- - -DMX_GET_STC - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_GET_STC, struct dmx_stc *stc) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_GET_STC for this command. - - - .. row 3 - - - struct dmx_stc \*stc - - - Pointer to the location where the stc is to be stored. - - -Description ------------ - -This ioctl call returns the current value of the system time counter -(which is driven by a PES filter of type DMX_PES_PCR). Some hardware -supports more than one STC, so you must specify which one by setting the -num field of stc before the ioctl (range 0...n). The result is returned -in form of a ratio with a 64 bit numerator and a 32 bit denominator, so -the real 90kHz STC value is stc->stc / stc->base . - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - Invalid stc number. diff --git a/Documentation/linux_tv/media/dvb/dmx-remove-pid.rst b/Documentation/linux_tv/media/dvb/dmx-remove-pid.rst deleted file mode 100644 index c8f038b40074..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-remove-pid.rst +++ /dev/null @@ -1,62 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_REMOVE_PID: - -============== -DMX_REMOVE_PID -============== - -Name ----- - -DMX_REMOVE_PID - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = DMX_REMOVE_PID, __u16 *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_REMOVE_PID for this command. - - - .. row 3 - - - __u16 * - - - PID of the PES filter to be removed. - - -Description ------------ - -This ioctl call allows to remove a PID when multiple PIDs are set on a -transport stream filter, e. g. a filter previously set up with output -equal to DMX_OUT_TSDEMUX_TAP, created via either -DMX_SET_PES_FILTER or DMX_ADD_PID. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-set-buffer-size.rst b/Documentation/linux_tv/media/dvb/dmx-set-buffer-size.rst deleted file mode 100644 index 8ae48cf39cda..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-set-buffer-size.rst +++ /dev/null @@ -1,62 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_SET_BUFFER_SIZE: - -=================== -DMX_SET_BUFFER_SIZE -=================== - -Name ----- - -DMX_SET_BUFFER_SIZE - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_SET_BUFFER_SIZE, unsigned long size) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_SET_BUFFER_SIZE for this command. - - - .. row 3 - - - unsigned long size - - - Size of circular buffer. - - -Description ------------ - -This ioctl call is used to set the size of the circular buffer used for -filtered data. The default size is two maximum sized sections, i.e. if -this function is not called a buffer size of 2 \* 4096 bytes will be -used. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-set-filter.rst b/Documentation/linux_tv/media/dvb/dmx-set-filter.rst deleted file mode 100644 index 8c929fa9b98c..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-set-filter.rst +++ /dev/null @@ -1,68 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_SET_FILTER: - -============== -DMX_SET_FILTER -============== - -Name ----- - -DMX_SET_FILTER - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_SET_FILTER, struct dmx_sct_filter_params *params) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_SET_FILTER for this command. - - - .. row 3 - - - struct dmx_sct_filter_params \*params - - - Pointer to structure containing filter parameters. - - -Description ------------ - -This ioctl call sets up a filter according to the filter and mask -parameters provided. A timeout may be defined stating number of seconds -to wait for a section to be loaded. A value of 0 means that no timeout -should be applied. Finally there is a flag field where it is possible to -state whether a section should be CRC-checked, whether the filter should -be a ”one-shot” filter, i.e. if the filtering operation should be -stopped after the first section is received, and whether the filtering -operation should be started immediately (without waiting for a -DMX_START ioctl call). If a filter was previously set-up, this filter -will be canceled, and the receive buffer will be flushed. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-set-pes-filter.rst b/Documentation/linux_tv/media/dvb/dmx-set-pes-filter.rst deleted file mode 100644 index addc321011ce..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-set-pes-filter.rst +++ /dev/null @@ -1,78 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_SET_PES_FILTER: - -================== -DMX_SET_PES_FILTER -================== - -Name ----- - -DMX_SET_PES_FILTER - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_SET_PES_FILTER, struct dmx_pes_filter_params *params) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_SET_PES_FILTER for this command. - - - .. row 3 - - - struct dmx_pes_filter_params \*params - - - Pointer to structure containing filter parameters. - - -Description ------------ - -This ioctl call sets up a PES filter according to the parameters -provided. By a PES filter is meant a filter that is based just on the -packet identifier (PID), i.e. no PES header or payload filtering -capability is supported. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EBUSY`` - - - This error code indicates that there are conflicting requests. - There are active filters filtering data from another input source. - Make sure that these filters are stopped before starting this - filter. diff --git a/Documentation/linux_tv/media/dvb/dmx-set-source.rst b/Documentation/linux_tv/media/dvb/dmx-set-source.rst deleted file mode 100644 index 99a8d5c82756..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-set-source.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_SET_SOURCE: - -============== -DMX_SET_SOURCE -============== - -Name ----- - -DMX_SET_SOURCE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = DMX_SET_SOURCE, dmx_source_t *) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_SET_SOURCE for this command. - - - .. row 3 - - - dmx_source_t * - - - Undocumented. - - -Description ------------ - -This ioctl is undocumented. Documentation is welcome. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx-start.rst b/Documentation/linux_tv/media/dvb/dmx-start.rst deleted file mode 100644 index 9835d1e78400..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-start.rst +++ /dev/null @@ -1,77 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_START: - -========= -DMX_START -========= - -Name ----- - -DMX_START - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_START) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_START for this command. - - -Description ------------ - -This ioctl call is used to start the actual filtering operation defined -via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - Invalid argument, i.e. no filtering parameters provided via the - DMX_SET_FILTER or DMX_SET_PES_FILTER functions. - - - .. row 2 - - - ``EBUSY`` - - - This error code indicates that there are conflicting requests. - There are active filters filtering data from another input source. - Make sure that these filters are stopped before starting this - filter. diff --git a/Documentation/linux_tv/media/dvb/dmx-stop.rst b/Documentation/linux_tv/media/dvb/dmx-stop.rst deleted file mode 100644 index 7e4bf09fc83e..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx-stop.rst +++ /dev/null @@ -1,55 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _DMX_STOP: - -======== -DMX_STOP -======== - -Name ----- - -DMX_STOP - - -Synopsis --------- - -.. cpp:function:: int ioctl( int fd, int request = DMX_STOP) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals DMX_STOP for this command. - - -Description ------------ - -This ioctl call is used to stop the actual filtering operation defined -via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER and -started via the DMX_START command. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/dmx_fcalls.rst b/Documentation/linux_tv/media/dvb/dmx_fcalls.rst deleted file mode 100644 index 77a1554d9834..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx_fcalls.rst +++ /dev/null @@ -1,27 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_fcalls: - -******************** -Demux Function Calls -******************** - -.. toctree:: - :maxdepth: 1 - - dmx-fopen - dmx-fclose - dmx-fread - dmx-fwrite - dmx-start - dmx-stop - dmx-set-filter - dmx-set-pes-filter - dmx-set-buffer-size - dmx-get-event - dmx-get-stc - dmx-get-pes-pids - dmx-get-caps - dmx-set-source - dmx-add-pid - dmx-remove-pid diff --git a/Documentation/linux_tv/media/dvb/dmx_h.rst b/Documentation/linux_tv/media/dvb/dmx_h.rst deleted file mode 100644 index 4fd1704a0833..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx_h.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_h: - -********************* -DVB Demux Header File -********************* - -.. kernel-include:: $BUILDDIR/dmx.h.rst diff --git a/Documentation/linux_tv/media/dvb/dmx_types.rst b/Documentation/linux_tv/media/dvb/dmx_types.rst deleted file mode 100644 index 7a8900af2680..000000000000 --- a/Documentation/linux_tv/media/dvb/dmx_types.rst +++ /dev/null @@ -1,242 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dmx_types: - -**************** -Demux Data Types -**************** - - -.. _dmx-output-t: - -Output for the demux -==================== - - -.. _dmx-output: - -.. flat-table:: enum dmx_output - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _DMX-OUT-DECODER: - - DMX_OUT_DECODER - - - Streaming directly to decoder. - - - .. row 3 - - - .. _DMX-OUT-TAP: - - DMX_OUT_TAP - - - 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. - - - .. row 4 - - - .. _DMX-OUT-TS-TAP: - - DMX_OUT_TS_TAP - - - Output multiplexed into a new TS (to be retrieved by reading from - the logical DVR device). Routes output to the logical DVR device - ``/dev/dvb/adapter?/dvr?``, which delivers a TS multiplexed from - all filters for which ``DMX_OUT_TS_TAP`` was specified. - - - .. row 5 - - - .. _DMX-OUT-TSDEMUX-TAP: - - DMX_OUT_TSDEMUX_TAP - - - Like :ref:`DMX_OUT_TS_TAP ` but retrieved - from the DMX device. - - - -.. _dmx-input-t: - -dmx_input_t -=========== - - -.. code-block:: c - - typedef enum - { - DMX_IN_FRONTEND, /* Input from a front-end device. */ - DMX_IN_DVR /* Input from the logical DVR device. */ - } dmx_input_t; - - -.. _dmx-pes-type-t: - -dmx_pes_type_t -============== - - -.. code-block:: c - - typedef enum - { - DMX_PES_AUDIO0, - DMX_PES_VIDEO0, - DMX_PES_TELETEXT0, - DMX_PES_SUBTITLE0, - DMX_PES_PCR0, - - DMX_PES_AUDIO1, - DMX_PES_VIDEO1, - DMX_PES_TELETEXT1, - DMX_PES_SUBTITLE1, - DMX_PES_PCR1, - - DMX_PES_AUDIO2, - DMX_PES_VIDEO2, - DMX_PES_TELETEXT2, - DMX_PES_SUBTITLE2, - DMX_PES_PCR2, - - DMX_PES_AUDIO3, - DMX_PES_VIDEO3, - DMX_PES_TELETEXT3, - DMX_PES_SUBTITLE3, - DMX_PES_PCR3, - - DMX_PES_OTHER - } dmx_pes_type_t; - - -.. _dmx-filter: - -struct dmx_filter -================= - - -.. code-block:: c - - typedef struct dmx_filter - { - __u8 filter[DMX_FILTER_SIZE]; - __u8 mask[DMX_FILTER_SIZE]; - __u8 mode[DMX_FILTER_SIZE]; - } dmx_filter_t; - - -.. _dmx-sct-filter-params: - -struct dmx_sct_filter_params -============================ - - -.. code-block:: c - - struct dmx_sct_filter_params - { - __u16 pid; - dmx_filter_t filter; - __u32 timeout; - __u32 flags; - #define DMX_CHECK_CRC 1 - #define DMX_ONESHOT 2 - #define DMX_IMMEDIATE_START 4 - #define DMX_KERNEL_CLIENT 0x8000 - }; - - -.. _dmx-pes-filter-params: - -struct dmx_pes_filter_params -============================ - - -.. code-block:: c - - struct dmx_pes_filter_params - { - __u16 pid; - dmx_input_t input; - dmx_output_t output; - dmx_pes_type_t pes_type; - __u32 flags; - }; - - -.. _dmx-event: - -struct dmx_event -================ - - -.. code-block:: c - - struct dmx_event - { - dmx_event_t event; - time_t timeStamp; - union - { - dmx_scrambling_status_t scrambling; - } u; - }; - - -.. _dmx-stc: - -struct dmx_stc -============== - - -.. code-block:: c - - struct dmx_stc { - unsigned int num; /* input : which STC? 0..N */ - unsigned int base; /* output: divisor for stc to get 90 kHz clock */ - __u64 stc; /* output: stc in 'base'*90 kHz units */ - }; - - -.. _dmx-caps: - -struct dmx_caps -=============== - - -.. code-block:: c - - typedef struct dmx_caps { - __u32 caps; - int num_decoders; - } dmx_caps_t; - - -.. _dmx-source-t: - -enum dmx_source_t -================= - - -.. code-block:: c - - typedef enum { - DMX_SOURCE_FRONT0 = 0, - DMX_SOURCE_FRONT1, - DMX_SOURCE_FRONT2, - DMX_SOURCE_FRONT3, - DMX_SOURCE_DVR0 = 16, - DMX_SOURCE_DVR1, - DMX_SOURCE_DVR2, - DMX_SOURCE_DVR3 - } dmx_source_t; diff --git a/Documentation/linux_tv/media/dvb/dtv-fe-stats.rst b/Documentation/linux_tv/media/dvb/dtv-fe-stats.rst deleted file mode 100644 index 7c105e2ab27e..000000000000 --- a/Documentation/linux_tv/media/dvb/dtv-fe-stats.rst +++ /dev/null @@ -1,17 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dtv-fe-stats: - -******************* -struct dtv_fe_stats -******************* - - -.. code-block:: c - - #define MAX_DTV_STATS 4 - - struct dtv_fe_stats { - __u8 len; - struct dtv_stats stat[MAX_DTV_STATS]; - } __packed; diff --git a/Documentation/linux_tv/media/dvb/dtv-properties.rst b/Documentation/linux_tv/media/dvb/dtv-properties.rst deleted file mode 100644 index c13be5de4302..000000000000 --- a/Documentation/linux_tv/media/dvb/dtv-properties.rst +++ /dev/null @@ -1,15 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dtv-properties: - -********************* -struct dtv_properties -********************* - - -.. code-block:: c - - struct dtv_properties { - __u32 num; - struct dtv_property *props; - }; diff --git a/Documentation/linux_tv/media/dvb/dtv-property.rst b/Documentation/linux_tv/media/dvb/dtv-property.rst deleted file mode 100644 index 5073a49def2a..000000000000 --- a/Documentation/linux_tv/media/dvb/dtv-property.rst +++ /dev/null @@ -1,31 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dtv-property: - -******************* -struct dtv_property -******************* - - -.. code-block:: c - - /* Reserved fields should be set to 0 */ - - struct dtv_property { - __u32 cmd; - __u32 reserved[3]; - union { - __u32 data; - struct dtv_fe_stats st; - struct { - __u8 data[32]; - __u32 len; - __u32 reserved1[3]; - void *reserved2; - } buffer; - } u; - int result; - } __attribute__ ((packed)); - - /* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */ - #define DTV_IOCTL_MAX_MSGS 64 diff --git a/Documentation/linux_tv/media/dvb/dtv-stats.rst b/Documentation/linux_tv/media/dvb/dtv-stats.rst deleted file mode 100644 index 2cfdca00f164..000000000000 --- a/Documentation/linux_tv/media/dvb/dtv-stats.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dtv-stats: - -**************** -struct dtv_stats -**************** - - -.. code-block:: c - - struct dtv_stats { - __u8 scale; /* enum fecap_scale_params type */ - union { - __u64 uvalue; /* for counters and relative scales */ - __s64 svalue; /* for 1/1000 dB measures */ - }; - } __packed; diff --git a/Documentation/linux_tv/media/dvb/dvb-fe-read-status.rst b/Documentation/linux_tv/media/dvb/dvb-fe-read-status.rst deleted file mode 100644 index 1c708c5e6bc0..000000000000 --- a/Documentation/linux_tv/media/dvb/dvb-fe-read-status.rst +++ /dev/null @@ -1,22 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb-fe-read-status: - -*************************************** -Querying frontend status and statistics -*************************************** - -Once :ref:`FE_SET_PROPERTY ` 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. - -The information about the frontend tuner locking status can be queried -using :ref:`FE_READ_STATUS`. - -Signal statistics are provided via -:ref:`FE_GET_PROPERTY`. Please note that several -statistics require the demodulator to be fully locked (e. g. with -FE_HAS_LOCK bit set). See -:ref:`Frontend statistics indicators ` for -more details. diff --git a/Documentation/linux_tv/media/dvb/dvb-frontend-event.rst b/Documentation/linux_tv/media/dvb/dvb-frontend-event.rst deleted file mode 100644 index 78e72feaa178..000000000000 --- a/Documentation/linux_tv/media/dvb/dvb-frontend-event.rst +++ /dev/null @@ -1,15 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb-frontend-event: - -*************** -frontend events -*************** - - -.. code-block:: c - - struct dvb_frontend_event { - fe_status_t status; - struct dvb_frontend_parameters parameters; - }; diff --git a/Documentation/linux_tv/media/dvb/dvb-frontend-parameters.rst b/Documentation/linux_tv/media/dvb/dvb-frontend-parameters.rst deleted file mode 100644 index 16cb581d5cff..000000000000 --- a/Documentation/linux_tv/media/dvb/dvb-frontend-parameters.rst +++ /dev/null @@ -1,119 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb-frontend-parameters: - -******************* -frontend parameters -******************* - -The kind of parameters passed to the frontend device for tuning depend -on the kind of hardware you are using. - -The struct ``dvb_frontend_parameters`` 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 -:ref:`FE_GET_PROPERTY/FE_SET_PROPERTY ` -ioctl's. The new API is flexible enough to add new parameters to -existing delivery systems, and to add newer delivery systems. - -So, newer applications should use -:ref:`FE_GET_PROPERTY/FE_SET_PROPERTY ` -instead, in order to be able to support the newer System Delivery like -DVB-S2, DVB-T2, DVB-C2, ISDB, etc. - -All kinds of parameters are combined as an union in the -FrontendParameters structure: - - -.. code-block:: c - - 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; - }; - -In the case of QPSK frontends the ``frequency`` 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 ``frequency`` specifies the absolute frequency and is -given in Hz. - - -.. _dvb-qpsk-parameters: - -QPSK parameters -=============== - -For satellite QPSK frontends you have to use the ``dvb_qpsk_parameters`` -structure: - - -.. code-block:: c - - 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) */ - }; - - -.. _dvb-qam-parameters: - -QAM parameters -============== - -for cable QAM frontend you use the ``dvb_qam_parameters`` structure: - - -.. code-block:: c - - 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) */ - }; - - -.. _dvb-vsb-parameters: - -VSB parameters -============== - -ATSC frontends are supported by the ``dvb_vsb_parameters`` structure: - - -.. code-block:: c - - struct dvb_vsb_parameters { - fe_modulation_t modulation; /* modulation type (see above) */ - }; - - -.. _dvb-ofdm-parameters: - -OFDM parameters -=============== - -DVB-T frontends are supported by the ``dvb_ofdm_parameters`` structure: - - -.. code-block:: c - - 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; - }; diff --git a/Documentation/linux_tv/media/dvb/dvbapi.rst b/Documentation/linux_tv/media/dvb/dvbapi.rst deleted file mode 100644 index 60fb3d46b1d6..000000000000 --- a/Documentation/linux_tv/media/dvb/dvbapi.rst +++ /dev/null @@ -1,98 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. include:: - -.. _dvbapi: - -############## -Digital TV API -############## - -**NOTE:** This API is also known as **DVB API**, although it is generic -enough to support all digital TV standards. - -**Version 5.10** - -.. toctree:: - :maxdepth: 1 - :numbered: - - intro - frontend - demux - ca - net - legacy_dvb_apis - examples - audio_h - ca_h - dmx_h - frontend_h - net_h - video_h - - -********************** -Revision and Copyright -********************** - -Authors: - -- J. K. Metzler, Ralph - - - Original author of the DVB API documentation. - -- O. C. Metzler, Marcus - - - Original author of the DVB API documentation. - -- Carvalho Chehab, Mauro - - - Ported document to Docbook XML, addition of DVBv5 API, documentation gaps fix. - -**Copyright** |copy| 2002-2003 : Convergence GmbH - -**Copyright** |copy| 2009-2016 : Mauro Carvalho Chehab - -**************** -Revision History -**************** - -:revision: 2.1.0 / 2015-05-29 (*mcc*) - -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. - -:revision: 2.0.4 / 2011-05-06 (*mcc*) - -Add more information about DVB APIv5, better describing the frontend -GET/SET props ioctl's. - - -:revision: 2.0.3 / 2010-07-03 (*mcc*) - -Add some frontend capabilities flags, present on kernel, but missing at -the specs. - - -:revision: 2.0.2 / 2009-10-25 (*mcc*) - -documents FE_SET_FRONTEND_TUNE_MODE and -FE_DISHETWORK_SEND_LEGACY_CMD ioctls. - - -:revision: 2.0.1 / 2009-09-16 (*mcc*) - -Added ISDB-T test originally written by Patrick Boettcher - - -:revision: 2.0.0 / 2009-09-06 (*mcc*) - -Conversion from LaTex to DocBook XML. The contents is the same as the -original LaTex version. - - -:revision: 1.0.0 / 2003-07-24 (*rjkm*) - -Initial revision on LaTEX. diff --git a/Documentation/linux_tv/media/dvb/dvbproperty-006.rst b/Documentation/linux_tv/media/dvb/dvbproperty-006.rst deleted file mode 100644 index 3343a0f306fe..000000000000 --- a/Documentation/linux_tv/media/dvb/dvbproperty-006.rst +++ /dev/null @@ -1,12 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -************** -Property types -************** - -On :ref:`FE_GET_PROPERTY and FE_SET_PROPERTY `, -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. - -The available frontend property types are shown on the next section. diff --git a/Documentation/linux_tv/media/dvb/dvbproperty.rst b/Documentation/linux_tv/media/dvb/dvbproperty.rst deleted file mode 100644 index 9b3782c5bb44..000000000000 --- a/Documentation/linux_tv/media/dvb/dvbproperty.rst +++ /dev/null @@ -1,111 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend-properties: - -DVB Frontend properties -======================= - -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. - -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. - -NOTE: on Linux DVB API version 3, setting a frontend were done via -:ref:`struct dvb_frontend_parameters `. -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. - -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 -:ref:`FE_SET_PROPERTY ` ioctl: - -- :ref:`DTV_DELIVERY_SYSTEM ` = - SYS_DVBC_ANNEX_A - -- :ref:`DTV_FREQUENCY ` = 651000000 - -- :ref:`DTV_MODULATION ` = QAM_256 - -- :ref:`DTV_INVERSION ` = INVERSION_AUTO - -- :ref:`DTV_SYMBOL_RATE ` = 5217000 - -- :ref:`DTV_INNER_FEC ` = FEC_3_4 - -- :ref:`DTV_TUNE ` - -The code that would do the above is: - - -.. code-block:: c - - #include - #include - #include - #include - - 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; - } - -NOTE: While it is possible to directly call the Kernel code like the -above example, it is strongly recommended to use -`libdvbv5 `__, 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. - - -.. toctree:: - :maxdepth: 1 - - dtv-stats - dtv-fe-stats - dtv-property - dtv-properties - dvbproperty-006 - fe_property_parameters - frontend-stat-properties - frontend-property-terrestrial-systems - frontend-property-cable-systems - frontend-property-satellite-systems diff --git a/Documentation/linux_tv/media/dvb/examples.rst b/Documentation/linux_tv/media/dvb/examples.rst deleted file mode 100644 index 64e029ecd047..000000000000 --- a/Documentation/linux_tv/media/dvb/examples.rst +++ /dev/null @@ -1,380 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_examples: - -******** -Examples -******** - -In this section we would like to present some examples for using the DVB -API. - -NOTE: This section is out of date, and the code below won't even -compile. Please refer to the -`libdvbv5 `__ for -updated/recommended examples. - - -.. _tuning: - -Tuning -====== - -We will start with a generic tuning subroutine that uses the frontend -and SEC, as well as the demux devices. The example is given for QPSK -tuners, but can easily be adjusted for QAM. - - -.. code-block:: c - - #include - #include - #include - #include - #include - #include - #include - #include - - #include - #include - #include - #include - - #define DMX "/dev/dvb/adapter0/demux1" - #define FRONT "/dev/dvb/adapter0/frontend1" - #define SEC "/dev/dvb/adapter0/sec1" - - /* routine for checking if we have a signal and other status information*/ - int FEReadStatus(int fd, fe_status_t *stat) - { - int ans; - - if ( (ans = ioctl(fd,FE_READ_STATUS,stat) < 0)){ - perror("FE READ STATUS: "); - return -1; - } - - if (*stat & FE_HAS_POWER) - printf("FE HAS POWER\\n"); - - if (*stat & FE_HAS_SIGNAL) - printf("FE HAS SIGNAL\\n"); - - if (*stat & FE_SPECTRUM_INV) - printf("SPEKTRUM INV\\n"); - - return 0; - } - - - /* tune qpsk */ - /* freq: frequency of transponder */ - /* vpid, apid, tpid: PIDs of video, audio and teletext TS packets */ - /* diseqc: DiSEqC address of the used LNB */ - /* pol: Polarisation */ - /* srate: Symbol Rate */ - /* fec. FEC */ - /* lnb_lof1: local frequency of lower LNB band */ - /* lnb_lof2: local frequency of upper LNB band */ - /* lnb_slof: switch frequency of LNB */ - - int set_qpsk_channel(int freq, int vpid, int apid, int tpid, - int diseqc, int pol, int srate, int fec, int lnb_lof1, - int lnb_lof2, int lnb_slof) - { - struct secCommand scmd; - struct secCmdSequence scmds; - struct dmx_pes_filter_params pesFilterParams; - FrontendParameters frp; - struct pollfd pfd[1]; - FrontendEvent event; - int demux1, demux2, demux3, front; - - frequency = (uint32_t) freq; - symbolrate = (uint32_t) srate; - - if((front = open(FRONT,O_RDWR)) < 0){ - perror("FRONTEND DEVICE: "); - return -1; - } - - if((sec = open(SEC,O_RDWR)) < 0){ - perror("SEC DEVICE: "); - return -1; - } - - if (demux1 < 0){ - if ((demux1=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (demux2 < 0){ - if ((demux2=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (demux3 < 0){ - if ((demux3=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (freq < lnb_slof) { - frp.Frequency = (freq - lnb_lof1); - scmds.continuousTone = SEC_TONE_OFF; - } else { - frp.Frequency = (freq - lnb_lof2); - scmds.continuousTone = SEC_TONE_ON; - } - frp.Inversion = INVERSION_AUTO; - if (pol) scmds.voltage = SEC_VOLTAGE_18; - else scmds.voltage = SEC_VOLTAGE_13; - - scmd.type=0; - scmd.u.diseqc.addr=0x10; - scmd.u.diseqc.cmd=0x38; - scmd.u.diseqc.numParams=1; - scmd.u.diseqc.params[0] = 0xF0 | ((diseqc * 4) & 0x0F) | - (scmds.continuousTone == SEC_TONE_ON ? 1 : 0) | - (scmds.voltage==SEC_VOLTAGE_18 ? 2 : 0); - - scmds.miniCommand=SEC_MINI_NONE; - scmds.numCommands=1; - scmds.commands=&scmd; - if (ioctl(sec, SEC_SEND_SEQUENCE, &scmds) < 0){ - perror("SEC SEND: "); - return -1; - } - - if (ioctl(sec, SEC_SEND_SEQUENCE, &scmds) < 0){ - perror("SEC SEND: "); - return -1; - } - - frp.u.qpsk.SymbolRate = srate; - frp.u.qpsk.FEC_inner = fec; - - if (ioctl(front, FE_SET_FRONTEND, &frp) < 0){ - perror("QPSK TUNE: "); - return -1; - } - - pfd[0].fd = front; - pfd[0].events = POLLIN; - - if (poll(pfd,1,3000)){ - if (pfd[0].revents & POLLIN){ - printf("Getting QPSK event\\n"); - if ( ioctl(front, FE_GET_EVENT, &event) - - == -EOVERFLOW){ - perror("qpsk get event"); - return -1; - } - printf("Received "); - switch(event.type){ - case FE_UNEXPECTED_EV: - printf("unexpected event\\n"); - return -1; - case FE_FAILURE_EV: - printf("failure event\\n"); - return -1; - - case FE_COMPLETION_EV: - printf("completion event\\n"); - } - } - } - - - pesFilterParams.pid = vpid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_DECODER; - pesFilterParams.pes_type = DMX_PES_VIDEO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux1, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("set_vpid"); - return -1; - } - - pesFilterParams.pid = apid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_DECODER; - pesFilterParams.pes_type = DMX_PES_AUDIO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux2, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("set_apid"); - return -1; - } - - pesFilterParams.pid = tpid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_DECODER; - pesFilterParams.pes_type = DMX_PES_TELETEXT; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux3, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("set_tpid"); - return -1; - } - - return has_signal(fds); - } - -The program assumes that you are using a universal LNB and a standard -DiSEqC switch with up to 4 addresses. Of course, you could build in some -more checking if tuning was successful and maybe try to repeat the -tuning process. Depending on the external hardware, i.e. LNB and DiSEqC -switch, and weather conditions this may be necessary. - - -.. _the_dvr_device: - -The DVR device -============== - -The following program code shows how to use the DVR device for -recording. - - -.. code-block:: c - - #include - #include - #include - #include - #include - #include - #include - #include - - #include - #include - #include - #define DVR "/dev/dvb/adapter0/dvr1" - #define AUDIO "/dev/dvb/adapter0/audio1" - #define VIDEO "/dev/dvb/adapter0/video1" - - #define BUFFY (188*20) - #define MAX_LENGTH (1024*1024*5) /* record 5MB */ - - - /* switch the demuxes to recording, assuming the transponder is tuned */ - - /* demux1, demux2: file descriptor of video and audio filters */ - /* vpid, apid: PIDs of video and audio channels */ - - int switch_to_record(int demux1, int demux2, uint16_t vpid, uint16_t apid) - { - struct dmx_pes_filter_params pesFilterParams; - - if (demux1 < 0){ - if ((demux1=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (demux2 < 0){ - if ((demux2=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - pesFilterParams.pid = vpid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_TS_TAP; - pesFilterParams.pes_type = DMX_PES_VIDEO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux1, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("DEMUX DEVICE"); - return -1; - } - pesFilterParams.pid = apid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_TS_TAP; - pesFilterParams.pes_type = DMX_PES_AUDIO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux2, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("DEMUX DEVICE"); - return -1; - } - return 0; - } - - /* start recording MAX_LENGTH , assuming the transponder is tuned */ - - /* demux1, demux2: file descriptor of video and audio filters */ - /* vpid, apid: PIDs of video and audio channels */ - int record_dvr(int demux1, int demux2, uint16_t vpid, uint16_t apid) - { - int i; - int len; - int written; - uint8_t buf[BUFFY]; - uint64_t length; - struct pollfd pfd[1]; - int dvr, dvr_out; - - /* open dvr device */ - if ((dvr = open(DVR, O_RDONLY|O_NONBLOCK)) < 0){ - perror("DVR DEVICE"); - return -1; - } - - /* switch video and audio demuxes to dvr */ - printf ("Switching dvr on\\n"); - i = switch_to_record(demux1, demux2, vpid, apid); - printf("finished: "); - - printf("Recording %2.0f MB of test file in TS format\\n", - MAX_LENGTH/(1024.0*1024.0)); - length = 0; - - /* open output file */ - if ((dvr_out = open(DVR_FILE,O_WRONLY|O_CREAT - |O_TRUNC, S_IRUSR|S_IWUSR - |S_IRGRP|S_IWGRP|S_IROTH| - S_IWOTH)) < 0){ - perror("Can't open file for dvr test"); - return -1; - } - - pfd[0].fd = dvr; - pfd[0].events = POLLIN; - - /* poll for dvr data and write to file */ - while (length < MAX_LENGTH ) { - if (poll(pfd,1,1)){ - if (pfd[0].revents & POLLIN){ - len = read(dvr, buf, BUFFY); - if (len < 0){ - perror("recording"); - return -1; - } - if (len > 0){ - written = 0; - while (written < len) - written += - write (dvr_out, - buf, len); - length += len; - printf("written %2.0f MB\\r", - length/1024./1024.); - } - } - } - } - return 0; - } diff --git a/Documentation/linux_tv/media/dvb/fe-bandwidth-t.rst b/Documentation/linux_tv/media/dvb/fe-bandwidth-t.rst deleted file mode 100644 index 8edaf1a8fbc8..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-bandwidth-t.rst +++ /dev/null @@ -1,77 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _fe-bandwidth-t: - -****************** -Frontend bandwidth -****************** - - -.. _fe-bandwidth: - -.. flat-table:: enum fe_bandwidth - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _BANDWIDTH-AUTO: - - ``BANDWIDTH_AUTO`` - - - Autodetect bandwidth (if supported) - - - .. row 3 - - - .. _BANDWIDTH-1-712-MHZ: - - ``BANDWIDTH_1_712_MHZ`` - - - 1.712 MHz - - - .. row 4 - - - .. _BANDWIDTH-5-MHZ: - - ``BANDWIDTH_5_MHZ`` - - - 5 MHz - - - .. row 5 - - - .. _BANDWIDTH-6-MHZ: - - ``BANDWIDTH_6_MHZ`` - - - 6 MHz - - - .. row 6 - - - .. _BANDWIDTH-7-MHZ: - - ``BANDWIDTH_7_MHZ`` - - - 7 MHz - - - .. row 7 - - - .. _BANDWIDTH-8-MHZ: - - ``BANDWIDTH_8_MHZ`` - - - 8 MHz - - - .. row 8 - - - .. _BANDWIDTH-10-MHZ: - - ``BANDWIDTH_10_MHZ`` - - - 10 MHz diff --git a/Documentation/linux_tv/media/dvb/fe-diseqc-recv-slave-reply.rst b/Documentation/linux_tv/media/dvb/fe-diseqc-recv-slave-reply.rst deleted file mode 100644 index 7bd02ac7bff4..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-diseqc-recv-slave-reply.rst +++ /dev/null @@ -1,83 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_DISEQC_RECV_SLAVE_REPLY: - -******************************** -ioctl FE_DISEQC_RECV_SLAVE_REPLY -******************************** - -Name -==== - -FE_DISEQC_RECV_SLAVE_REPLY - Receives reply from a DiSEqC 2.0 command - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct dvb_diseqc_slave_reply *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_DISEQC_RECV_SLAVE_REPLY - -``argp`` - pointer to struct - :ref:`dvb_diseqc_slave_reply ` - - -Description -=========== - -Receives reply from a DiSEqC 2.0 command. - -.. _dvb-diseqc-slave-reply: - -struct dvb_diseqc_slave_reply ------------------------------ - -.. flat-table:: struct dvb_diseqc_slave_reply - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - uint8_t - - - msg[4] - - - DiSEqC message (framing, data[3]) - - - .. row 2 - - - uint8_t - - - msg_len - - - Length of the DiSEqC message. Valid values are 0 to 4, where 0 - means no msg - - - .. row 3 - - - int - - - timeout - - - Return from ioctl after timeout ms with errorcode when no message - was received - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-diseqc-reset-overload.rst b/Documentation/linux_tv/media/dvb/fe-diseqc-reset-overload.rst deleted file mode 100644 index cab157054c13..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-diseqc-reset-overload.rst +++ /dev/null @@ -1,45 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_DISEQC_RESET_OVERLOAD: - -****************************** -ioctl FE_DISEQC_RESET_OVERLOAD -****************************** - -Name -==== - -FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due - to power overload. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, NULL ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_DISEQC_RESET_OVERLOAD - - -Description -=========== - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst b/Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst deleted file mode 100644 index 9b476545ef89..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst +++ /dev/null @@ -1,84 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_DISEQC_SEND_BURST: - -************************** -ioctl FE_DISEQC_SEND_BURST -************************** - -Name -==== - -FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, enum fe_sec_mini_cmd *tone ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_DISEQC_SEND_BURST - -``tone`` - pointer to enum :ref:`fe_sec_mini_cmd ` - - -Description -=========== - -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. - -It provides support for what's specified at -`Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification. `__ - -.. _fe-sec-mini-cmd-t: - -enum fe_sec_mini_cmd -==================== - -.. _fe-sec-mini-cmd: - -.. flat-table:: enum fe_sec_mini_cmd - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _SEC-MINI-A: - - ``SEC_MINI_A`` - - - Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A - - - .. row 3 - - - .. _SEC-MINI-B: - - ``SEC_MINI_B`` - - - Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-diseqc-send-master-cmd.rst b/Documentation/linux_tv/media/dvb/fe-diseqc-send-master-cmd.rst deleted file mode 100644 index 58a5e6ac10bd..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-diseqc-send-master-cmd.rst +++ /dev/null @@ -1,73 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_DISEQC_SEND_MASTER_CMD: - -******************************* -ioctl FE_DISEQC_SEND_MASTER_CMD -******************************* - -Name -==== - -FE_DISEQC_SEND_MASTER_CMD - Sends a DiSEqC command - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct dvb_diseqc_master_cmd *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_DISEQC_SEND_MASTER_CMD - -``argp`` - pointer to struct - :ref:`dvb_diseqc_master_cmd ` - - -Description -=========== - -Sends a DiSEqC command to the antenna subsystem. - -.. _dvb-diseqc-master-cmd: - -struct dvb_diseqc_master_cmd -============================ - -.. flat-table:: struct dvb_diseqc_master_cmd - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - uint8_t - - - msg[6] - - - DiSEqC message (framing, address, command, data[3]) - - - .. row 2 - - - uint8_t - - - msg_len - - - Length of the DiSEqC message. Valid values are 3 to 6 - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - diff --git a/Documentation/linux_tv/media/dvb/fe-dishnetwork-send-legacy-cmd.rst b/Documentation/linux_tv/media/dvb/fe-dishnetwork-send-legacy-cmd.rst deleted file mode 100644 index 9f71b39de0c2..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-dishnetwork-send-legacy-cmd.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_DISHNETWORK_SEND_LEGACY_CMD: - -****************************** -FE_DISHNETWORK_SEND_LEGACY_CMD -****************************** - -Name -==== - -FE_DISHNETWORK_SEND_LEGACY_CMD - - -Synopsis -======== - -.. cpp:function:: int ioctl(int fd, int request = FE_DISHNETWORK_SEND_LEGACY_CMD, unsigned long cmd) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - unsigned long cmd - - - sends the specified raw cmd to the dish via DISEqC. - - -Description -=========== - -WARNING: This is a very obscure legacy command, used only at stv0299 -driver. Should not be used on newer drivers. - -It provides a non-standard method for selecting Diseqc voltage on the -frontend, for Dish Network legacy switches. - -As support for this ioctl were added in 2004, this means that such -dishes were already legacy in 2004. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-enable-high-lnb-voltage.rst b/Documentation/linux_tv/media/dvb/fe-enable-high-lnb-voltage.rst deleted file mode 100644 index de99bf5fbf0e..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-enable-high-lnb-voltage.rst +++ /dev/null @@ -1,52 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_ENABLE_HIGH_LNB_VOLTAGE: - -******************************** -ioctl FE_ENABLE_HIGH_LNB_VOLTAGE -******************************** - -Name -==== - -FE_ENABLE_HIGH_LNB_VOLTAGE - Select output DC level between normal LNBf voltages or higher LNBf - voltages. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, unsigned int high ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_ENABLE_HIGH_LNB_VOLTAGE - -``high`` - Valid flags: - - - 0 - normal 13V and 18V. - - - >0 - enables slightly higher voltages instead of 13/18V, in order - to compensate for long antenna cables. - - -Description -=========== - -Select output DC level between normal LNBf voltages or higher LNBf -voltages between 0 (normal) or a value grater than 0 for higher -voltages. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-get-event.rst b/Documentation/linux_tv/media/dvb/fe-get-event.rst deleted file mode 100644 index ffa3d04c6bd4..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-get-event.rst +++ /dev/null @@ -1,87 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_GET_EVENT: - -************ -FE_GET_EVENT -************ - -Name -==== - -FE_GET_EVENT - - -Synopsis -======== - -.. cpp:function:: int ioctl(int fd, int request = QPSK_GET_EVENT, struct dvb_frontend_event *ev) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals :ref:`FE_GET_EVENT` for this command. - - - .. row 3 - - - struct dvb_frontend_event \*ev - - - Points to the location where the event, - - - .. row 4 - - - - - if any, is to be stored. - - -Description -=========== - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EWOULDBLOCK`` - - - There is no event pending, and the device is in non-blocking mode. - - - .. row 2 - - - ``EOVERFLOW`` - - - Overflow in event queue - one or more events were lost. diff --git a/Documentation/linux_tv/media/dvb/fe-get-frontend.rst b/Documentation/linux_tv/media/dvb/fe-get-frontend.rst deleted file mode 100644 index 5d2df808df18..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-get-frontend.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_GET_FRONTEND: - -*************** -FE_GET_FRONTEND -*************** - -Name -==== - -FE_GET_FRONTEND - - -Synopsis -======== - -.. cpp:function:: int ioctl(int fd, int request = FE_GET_FRONTEND, struct dvb_frontend_parameters *p) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals :ref:`FE_SET_FRONTEND` for this - command. - - - .. row 3 - - - struct dvb_frontend_parameters \*p - - - Points to parameters for tuning operation. - - -Description -=========== - -This ioctl call queries the currently effective frontend parameters. For -this command, read-only access to the device is sufficient. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - Maximum supported symbol rate reached. diff --git a/Documentation/linux_tv/media/dvb/fe-get-info.rst b/Documentation/linux_tv/media/dvb/fe-get-info.rst deleted file mode 100644 index 9a9ddbcdb1ec..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-get-info.rst +++ /dev/null @@ -1,428 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_GET_INFO: - -***************** -ioctl FE_GET_INFO -***************** - -Name -==== - -FE_GET_INFO - Query DVB frontend capabilities and returns information about the - front-end. This call only requires read-only access to the device - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct dvb_frontend_info *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_GET_INFO - -``argp`` - pointer to struct struct - :ref:`dvb_frontend_info ` - - -Description -=========== - -All DVB frontend devices support the ``FE_GET_INFO`` 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. - -.. _dvb-frontend-info: - -struct dvb_frontend_info -======================== - -.. flat-table:: struct dvb_frontend_info - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - char - - - name[128] - - - Name of the frontend - - - .. row 2 - - - fe_type_t - - - type - - - **DEPRECATED**. 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. - - - .. row 3 - - - uint32_t - - - frequency_min - - - Minimal frequency supported by the frontend - - - .. row 4 - - - uint32_t - - - frequency_max - - - Maximal frequency supported by the frontend - - - .. row 5 - - - uint32_t - - - frequency_stepsize - - - Frequency step - all frequencies are multiple of this value - - - .. row 6 - - - uint32_t - - - frequency_tolerance - - - Tolerance of the frequency - - - .. row 7 - - - uint32_t - - - symbol_rate_min - - - Minimal symbol rate (for Cable/Satellite systems), in bauds - - - .. row 8 - - - uint32_t - - - symbol_rate_max - - - Maximal symbol rate (for Cable/Satellite systems), in bauds - - - .. row 9 - - - uint32_t - - - symbol_rate_tolerance - - - Maximal symbol rate tolerance, in ppm - - - .. row 10 - - - uint32_t - - - notifier_delay - - - **DEPRECATED**. Not used by any driver. - - - .. row 11 - - - enum :ref:`fe_caps ` - - - caps - - - Capabilities supported by the frontend - - -NOTE: The frequencies are specified in Hz for Terrestrial and Cable -systems. They're specified in kHz for Satellite systems - - -.. _fe-caps-t: - -frontend capabilities -===================== - -Capabilities describe what a frontend can do. Some capabilities are -supported only on some specific frontend types. - - -.. _fe-caps: - -.. flat-table:: enum fe_caps - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _FE-IS-STUPID: - - ``FE_IS_STUPID`` - - - There's something wrong at the frontend, and it can't report its - capabilities - - - .. row 3 - - - .. _FE-CAN-INVERSION-AUTO: - - ``FE_CAN_INVERSION_AUTO`` - - - The frontend is capable of auto-detecting inversion - - - .. row 4 - - - .. _FE-CAN-FEC-1-2: - - ``FE_CAN_FEC_1_2`` - - - The frontend supports FEC 1/2 - - - .. row 5 - - - .. _FE-CAN-FEC-2-3: - - ``FE_CAN_FEC_2_3`` - - - The frontend supports FEC 2/3 - - - .. row 6 - - - .. _FE-CAN-FEC-3-4: - - ``FE_CAN_FEC_3_4`` - - - The frontend supports FEC 3/4 - - - .. row 7 - - - .. _FE-CAN-FEC-4-5: - - ``FE_CAN_FEC_4_5`` - - - The frontend supports FEC 4/5 - - - .. row 8 - - - .. _FE-CAN-FEC-5-6: - - ``FE_CAN_FEC_5_6`` - - - The frontend supports FEC 5/6 - - - .. row 9 - - - .. _FE-CAN-FEC-6-7: - - ``FE_CAN_FEC_6_7`` - - - The frontend supports FEC 6/7 - - - .. row 10 - - - .. _FE-CAN-FEC-7-8: - - ``FE_CAN_FEC_7_8`` - - - The frontend supports FEC 7/8 - - - .. row 11 - - - .. _FE-CAN-FEC-8-9: - - ``FE_CAN_FEC_8_9`` - - - The frontend supports FEC 8/9 - - - .. row 12 - - - .. _FE-CAN-FEC-AUTO: - - ``FE_CAN_FEC_AUTO`` - - - The frontend can autodetect FEC. - - - .. row 13 - - - .. _FE-CAN-QPSK: - - ``FE_CAN_QPSK`` - - - The frontend supports QPSK modulation - - - .. row 14 - - - .. _FE-CAN-QAM-16: - - ``FE_CAN_QAM_16`` - - - The frontend supports 16-QAM modulation - - - .. row 15 - - - .. _FE-CAN-QAM-32: - - ``FE_CAN_QAM_32`` - - - The frontend supports 32-QAM modulation - - - .. row 16 - - - .. _FE-CAN-QAM-64: - - ``FE_CAN_QAM_64`` - - - The frontend supports 64-QAM modulation - - - .. row 17 - - - .. _FE-CAN-QAM-128: - - ``FE_CAN_QAM_128`` - - - The frontend supports 128-QAM modulation - - - .. row 18 - - - .. _FE-CAN-QAM-256: - - ``FE_CAN_QAM_256`` - - - The frontend supports 256-QAM modulation - - - .. row 19 - - - .. _FE-CAN-QAM-AUTO: - - ``FE_CAN_QAM_AUTO`` - - - The frontend can autodetect modulation - - - .. row 20 - - - .. _FE-CAN-TRANSMISSION-MODE-AUTO: - - ``FE_CAN_TRANSMISSION_MODE_AUTO`` - - - The frontend can autodetect the transmission mode - - - .. row 21 - - - .. _FE-CAN-BANDWIDTH-AUTO: - - ``FE_CAN_BANDWIDTH_AUTO`` - - - The frontend can autodetect the bandwidth - - - .. row 22 - - - .. _FE-CAN-GUARD-INTERVAL-AUTO: - - ``FE_CAN_GUARD_INTERVAL_AUTO`` - - - The frontend can autodetect the guard interval - - - .. row 23 - - - .. _FE-CAN-HIERARCHY-AUTO: - - ``FE_CAN_HIERARCHY_AUTO`` - - - The frontend can autodetect hierarch - - - .. row 24 - - - .. _FE-CAN-8VSB: - - ``FE_CAN_8VSB`` - - - The frontend supports 8-VSB modulation - - - .. row 25 - - - .. _FE-CAN-16VSB: - - ``FE_CAN_16VSB`` - - - The frontend supports 16-VSB modulation - - - .. row 26 - - - .. _FE-HAS-EXTENDED-CAPS: - - ``FE_HAS_EXTENDED_CAPS`` - - - Currently, unused - - - .. row 27 - - - .. _FE-CAN-MULTISTREAM: - - ``FE_CAN_MULTISTREAM`` - - - The frontend supports multistream filtering - - - .. row 28 - - - .. _FE-CAN-TURBO-FEC: - - ``FE_CAN_TURBO_FEC`` - - - The frontend supports turbo FEC modulation - - - .. row 29 - - - .. _FE-CAN-2G-MODULATION: - - ``FE_CAN_2G_MODULATION`` - - - The frontend supports "2nd generation modulation" (DVB-S2/T2)> - - - .. row 30 - - - .. _FE-NEEDS-BENDING: - - ``FE_NEEDS_BENDING`` - - - Not supported anymore, don't use it - - - .. row 31 - - - .. _FE-CAN-RECOVER: - - ``FE_CAN_RECOVER`` - - - The frontend can recover from a cable unplug automatically - - - .. row 32 - - - .. _FE-CAN-MUTE-TS: - - ``FE_CAN_MUTE_TS`` - - - The frontend can stop spurious TS data output - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-get-property.rst b/Documentation/linux_tv/media/dvb/fe-get-property.rst deleted file mode 100644 index 749daafe6b21..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-get-property.rst +++ /dev/null @@ -1,68 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_GET_PROPERTY: - -************************************** -ioctl FE_SET_PROPERTY, FE_GET_PROPERTY -************************************** - -Name -==== - -FE_SET_PROPERTY - FE_GET_PROPERTY - FE_SET_PROPERTY sets one or more frontend properties. - FE_GET_PROPERTY returns one or more frontend properties. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct dtv_properties *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_PROPERTY, FE_GET_PROPERTY - -``argp`` - pointer to struct :ref:`dtv_properties ` - - -Description -=========== - -All DVB frontend devices support the ``FE_SET_PROPERTY`` and -``FE_GET_PROPERTY`` ioctls. The supported properties and statistics -depends on the delivery system and on the device: - -- ``FE_SET_PROPERTY:`` - - - This ioctl is used to set one or more frontend properties. - - - This is the basic command to request the frontend to tune into - some frequency and to start decoding the digital TV signal. - - - This call requires read/write access to the device. - - - At return, the values are updated to reflect the actual parameters - used. - -- ``FE_GET_PROPERTY:`` - - - This ioctl is used to get properties and statistics from the - frontend. - - - No properties are changed, and statistics aren't reset. - - - This call only requires read-only access to the device. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-read-ber.rst b/Documentation/linux_tv/media/dvb/fe-read-ber.rst deleted file mode 100644 index c2b5b417f5fb..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-read-ber.rst +++ /dev/null @@ -1,60 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_READ_BER: - -*********** -FE_READ_BER -*********** - -Name -==== - -FE_READ_BER - -Synopsis -======== - -.. cpp:function:: int ioctl(int fd, int request = FE_READ_BER, uint32_t *ber) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals :ref:`FE_READ_BER` for this command. - - - .. row 3 - - - uint32_t \*ber - - - The bit error rate is stored into \*ber. - - -Description -=========== - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-read-signal-strength.rst b/Documentation/linux_tv/media/dvb/fe-read-signal-strength.rst deleted file mode 100644 index 0cdee2effc97..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-read-signal-strength.rst +++ /dev/null @@ -1,63 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_READ_SIGNAL_STRENGTH: - -*********************** -FE_READ_SIGNAL_STRENGTH -*********************** - -Name -==== - -FE_READ_SIGNAL_STRENGTH - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request = FE_READ_SIGNAL_STRENGTH, uint16_t *strength) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals - :ref:`FE_READ_SIGNAL_STRENGTH` - for this command. - - - .. row 3 - - - uint16_t \*strength - - - The signal strength value is stored into \*strength. - - -Description -=========== - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-read-snr.rst b/Documentation/linux_tv/media/dvb/fe-read-snr.rst deleted file mode 100644 index 5394f9ae90f4..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-read-snr.rst +++ /dev/null @@ -1,61 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_READ_SNR: - -*********** -FE_READ_SNR -*********** - -Name -==== - -FE_READ_SNR - - -Synopsis -======== - -.. cpp:function:: int ioctl(int fd, int request = FE_READ_SNR, int16_t *snr) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals :ref:`FE_READ_SNR` for this command. - - - .. row 3 - - - uint16_t \*snr - - - The signal-to-noise ratio is stored into \*snr. - - -Description -=========== - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-read-status.rst b/Documentation/linux_tv/media/dvb/fe-read-status.rst deleted file mode 100644 index 339955fbe133..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-read-status.rst +++ /dev/null @@ -1,135 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_READ_STATUS: - -******************** -ioctl FE_READ_STATUS -******************** - -Name -==== - -FE_READ_STATUS - Returns status information about the front-end. This call only requires - read-only access to the device - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, unsigned int *status ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_READ_STATUS - -``status`` - pointer to a bitmask integer filled with the values defined by enum - :ref:`fe_status `. - - -Description -=========== - -All DVB frontend devices support the ``FE_READ_STATUS`` 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. - -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. - - -.. _fe-status-t: - -int fe_status -============= - -The fe_status parameter is used to indicate the current state and/or -state changes of the frontend hardware. It is produced using the enum -:ref:`fe_status ` values on a bitmask - - -.. _fe-status: - -.. flat-table:: enum fe_status - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _FE-HAS-SIGNAL: - - ``FE_HAS_SIGNAL`` - - - The frontend has found something above the noise level - - - .. row 3 - - - .. _FE-HAS-CARRIER: - - ``FE_HAS_CARRIER`` - - - The frontend has found a DVB signal - - - .. row 4 - - - .. _FE-HAS-VITERBI: - - ``FE_HAS_VITERBI`` - - - The frontend FEC inner coding (Viterbi, LDPC or other inner code) - is stable - - - .. row 5 - - - .. _FE-HAS-SYNC: - - ``FE_HAS_SYNC`` - - - Synchronization bytes was found - - - .. row 6 - - - .. _FE-HAS-LOCK: - - ``FE_HAS_LOCK`` - - - The DVB were locked and everything is working - - - .. row 7 - - - .. _FE-TIMEDOUT: - - ``FE_TIMEDOUT`` - - - no lock within the last about 2 seconds - - - .. row 8 - - - .. _FE-REINIT: - - ``FE_REINIT`` - - - The frontend was reinitialized, application is recommended to - reset DiSEqC, tone and parameters - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-read-uncorrected-blocks.rst b/Documentation/linux_tv/media/dvb/fe-read-uncorrected-blocks.rst deleted file mode 100644 index 5c29c058dfdc..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-read-uncorrected-blocks.rst +++ /dev/null @@ -1,65 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_READ_UNCORRECTED_BLOCKS: - -************************** -FE_READ_UNCORRECTED_BLOCKS -************************** - -Name -==== - -FE_READ_UNCORRECTED_BLOCKS - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request =FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals - :ref:`FE_READ_UNCORRECTED_BLOCKS` - for this command. - - - .. row 3 - - - uint32_t \*ublocks - - - The total number of uncorrected blocks seen by the driver so far. - - -Description -=========== - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-set-frontend-tune-mode.rst b/Documentation/linux_tv/media/dvb/fe-set-frontend-tune-mode.rst deleted file mode 100644 index 411abcf4de58..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-set-frontend-tune-mode.rst +++ /dev/null @@ -1,55 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_SET_FRONTEND_TUNE_MODE: - -******************************* -ioctl FE_SET_FRONTEND_TUNE_MODE -******************************* - -Name -==== - -FE_SET_FRONTEND_TUNE_MODE - Allow setting tuner mode flags to the frontend. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, unsigned int flags ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_FRONTEND_TUNE_MODE - -``flags`` - Valid flags: - - - 0 - normal tune mode - - - 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. - - -Description -=========== - -Allow setting tuner mode flags to the frontend, between 0 (normal) or -FE_TUNE_MODE_ONESHOT mode - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-set-frontend.rst b/Documentation/linux_tv/media/dvb/fe-set-frontend.rst deleted file mode 100644 index 7cb70c38d534..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-set-frontend.rst +++ /dev/null @@ -1,79 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_SET_FRONTEND: - -*************** -FE_SET_FRONTEND -*************** - -Name -==== - -FE_SET_FRONTEND - - -Synopsis -======== - -.. cpp:function:: int ioctl(int fd, int request = FE_SET_FRONTEND, struct dvb_frontend_parameters *p) - - -Arguments -========= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals :ref:`FE_SET_FRONTEND` for this - command. - - - .. row 3 - - - struct dvb_frontend_parameters \*p - - - Points to parameters for tuning operation. - - -Description -=========== - -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 :ref:`FE_GET_EVENT` and -FrontendEvent.) If a new :ref:`FE_SET_FRONTEND` -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - Maximum supported symbol rate reached. diff --git a/Documentation/linux_tv/media/dvb/fe-set-tone.rst b/Documentation/linux_tv/media/dvb/fe-set-tone.rst deleted file mode 100644 index 763b61d91004..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-set-tone.rst +++ /dev/null @@ -1,91 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_SET_TONE: - -***************** -ioctl FE_SET_TONE -***************** - -Name -==== - -FE_SET_TONE - Sets/resets the generation of the continuous 22kHz tone. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, enum fe_sec_tone_mode *tone ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_TONE - -``tone`` - pointer to enum :ref:`fe_sec_tone_mode ` - - -Description -=========== - -This ioctl is used to set the generation of the continuous 22kHz tone. -This call requires read/write permissions. - -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. - -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. - -.. _fe-sec-tone-mode-t: - -enum fe_sec_tone_mode -===================== - -.. _fe-sec-tone-mode: - -.. flat-table:: enum fe_sec_tone_mode - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _SEC-TONE-ON: - - ``SEC_TONE_ON`` - - - Sends a 22kHz tone burst to the antenna - - - .. row 3 - - - .. _SEC-TONE-OFF: - - ``SEC_TONE_OFF`` - - - Don't send a 22kHz tone to the antenna (except if the - FE_DISEQC_* ioctls are called) - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-set-voltage.rst b/Documentation/linux_tv/media/dvb/fe-set-voltage.rst deleted file mode 100644 index 517f79bdbb4b..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-set-voltage.rst +++ /dev/null @@ -1,63 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _FE_SET_VOLTAGE: - -******************** -ioctl FE_SET_VOLTAGE -******************** - -Name -==== - -FE_SET_VOLTAGE - Allow setting the DC level sent to the antenna subsystem. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, enum fe_sec_voltage *voltage ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_VOLTAGE - -``voltage`` - pointer to enum :ref:`fe_sec_voltage ` - - Valid values are described at enum - :ref:`fe_sec_voltage `. - - -Description -=========== - -This ioctl allows to set the DC voltage level sent through the antenna -cable to 13V, 18V or off. - -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. - -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. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/fe-type-t.rst b/Documentation/linux_tv/media/dvb/fe-type-t.rst deleted file mode 100644 index 8ca762b42e4d..000000000000 --- a/Documentation/linux_tv/media/dvb/fe-type-t.rst +++ /dev/null @@ -1,91 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _fe-type-t: - -************* -Frontend type -************* - -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: - - -.. _fe-type: - -.. flat-table:: Frontend types - :header-rows: 1 - :stub-columns: 0 - :widths: 3 1 4 - - - - .. row 1 - - - fe_type - - - Description - - - :ref:`DTV_DELIVERY_SYSTEM ` equivalent - type - - - .. row 2 - - - .. _FE-QPSK: - - ``FE_QPSK`` - - - For DVB-S standard - - - ``SYS_DVBS`` - - - .. row 3 - - - .. _FE-QAM: - - ``FE_QAM`` - - - For DVB-C annex A standard - - - ``SYS_DVBC_ANNEX_A`` - - - .. row 4 - - - .. _FE-OFDM: - - ``FE_OFDM`` - - - For DVB-T standard - - - ``SYS_DVBT`` - - - .. row 5 - - - .. _FE-ATSC: - - ``FE_ATSC`` - - - For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used - in US. - - - ``SYS_ATSC`` (terrestrial) or ``SYS_DVBC_ANNEX_B`` (cable) - - -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 -:ref:`FE_GET_PROPERTY/FE_GET_SET_PROPERTY ` -ioctl's, using the :ref:`DTV_DELIVERY_SYSTEM ` -parameter. - -In the old days, struct :ref:`dvb_frontend_info ` -used to contain ``fe_type_t`` 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 -:ref:`DTV_ENUM_DELSYS ` instead. - -On devices that support multiple delivery systems, struct -:ref:`dvb_frontend_info `::``fe_type_t`` is -filled with the currently standard, as selected by the last call to -:ref:`FE_SET_PROPERTY ` using the -:ref:`DTV_DELIVERY_SYSTEM ` property. diff --git a/Documentation/linux_tv/media/dvb/fe_property_parameters.rst b/Documentation/linux_tv/media/dvb/fe_property_parameters.rst deleted file mode 100644 index 47eb29350717..000000000000 --- a/Documentation/linux_tv/media/dvb/fe_property_parameters.rst +++ /dev/null @@ -1,1967 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _fe_property_parameters: - -****************************** -Digital TV property parameters -****************************** - - -.. _DTV-UNDEFINED: - -DTV_UNDEFINED -============= - -Used internally. A GET/SET operation for it won't change or return -anything. - - -.. _DTV-TUNE: - -DTV_TUNE -======== - -Interpret the cache of data, build either a traditional frontend -tunerequest so we can pass validation in the ``FE_SET_FRONTEND`` ioctl. - - -.. _DTV-CLEAR: - -DTV_CLEAR -========= - -Reset a cache of data specific to the frontend here. This does not -effect hardware. - - -.. _DTV-FREQUENCY: - -DTV_FREQUENCY -============= - -Central frequency of the channel. - -Notes: - -1)For satellite delivery systems, it is measured in kHz. For the other -ones, it is measured in Hz. - -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 the channel which is 6MHz. - -3)As in ISDB-Tsb the channel consists of only one or three segments the -frequency step is 429kHz, 3*429 respectively. As for ISDB-T the central -frequency of the channel is expected. - - -.. _DTV-MODULATION: - -DTV_MODULATION -============== - -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 enum :ref:`fe_modulation `. - - -.. _fe-modulation-t: - -Modulation property -------------------- - -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. - - -.. _fe-modulation: - -.. flat-table:: enum fe_modulation - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _QPSK: - - ``QPSK`` - - - QPSK modulation - - - .. row 3 - - - .. _QAM-16: - - ``QAM_16`` - - - 16-QAM modulation - - - .. row 4 - - - .. _QAM-32: - - ``QAM_32`` - - - 32-QAM modulation - - - .. row 5 - - - .. _QAM-64: - - ``QAM_64`` - - - 64-QAM modulation - - - .. row 6 - - - .. _QAM-128: - - ``QAM_128`` - - - 128-QAM modulation - - - .. row 7 - - - .. _QAM-256: - - ``QAM_256`` - - - 256-QAM modulation - - - .. row 8 - - - .. _QAM-AUTO: - - ``QAM_AUTO`` - - - Autodetect QAM modulation - - - .. row 9 - - - .. _VSB-8: - - ``VSB_8`` - - - 8-VSB modulation - - - .. row 10 - - - .. _VSB-16: - - ``VSB_16`` - - - 16-VSB modulation - - - .. row 11 - - - .. _PSK-8: - - ``PSK_8`` - - - 8-PSK modulation - - - .. row 12 - - - .. _APSK-16: - - ``APSK_16`` - - - 16-APSK modulation - - - .. row 13 - - - .. _APSK-32: - - ``APSK_32`` - - - 32-APSK modulation - - - .. row 14 - - - .. _DQPSK: - - ``DQPSK`` - - - DQPSK modulation - - - .. row 15 - - - .. _QAM-4-NR: - - ``QAM_4_NR`` - - - 4-QAM-NR modulation - - - -.. _DTV-BANDWIDTH-HZ: - -DTV_BANDWIDTH_HZ -================ - -Bandwidth for the channel, in HZ. - -Possible values: ``1712000``, ``5000000``, ``6000000``, ``7000000``, -``8000000``, ``10000000``. - -Notes: - -1) For ISDB-T it should be always 6000000Hz (6MHz) - -2) For ISDB-Tsb it can vary depending on the number of connected -segments - -3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth for -DVB-C depends on the symbol rate - -4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from -other parameters (DTV_ISDBT_SB_SEGMENT_IDX, -DTV_ISDBT_SB_SEGMENT_COUNT). - -5) DVB-T supports 6, 7 and 8MHz. - -6) In addition, DVB-T2 supports 1.172, 5 and 10MHz. - - -.. _DTV-INVERSION: - -DTV_INVERSION -============= - -Specifies if the frontend should do spectral inversion or not. - - -.. _fe-spectral-inversion-t: - -enum fe_modulation: Frontend spectral inversion ------------------------------------------------ - -This parameter indicates if spectral inversion should be presumed or -not. In the automatic setting (``INVERSION_AUTO``) 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. - - -.. _fe-spectral-inversion: - -.. flat-table:: enum fe_modulation - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _INVERSION-OFF: - - ``INVERSION_OFF`` - - - Don't do spectral band inversion. - - - .. row 3 - - - .. _INVERSION-ON: - - ``INVERSION_ON`` - - - Do spectral band inversion. - - - .. row 4 - - - .. _INVERSION-AUTO: - - ``INVERSION_AUTO`` - - - Autodetect spectral band inversion. - - - -.. _DTV-DISEQC-MASTER: - -DTV_DISEQC_MASTER -================= - -Currently not implemented. - - -.. _DTV-SYMBOL-RATE: - -DTV_SYMBOL_RATE -=============== - -Digital TV symbol rate, in bauds (symbols/second). Used on cable -standards. - - -.. _DTV-INNER-FEC: - -DTV_INNER_FEC -============= - -Used cable/satellite transmissions. The acceptable values are: - - -.. _fe-code-rate-t: - -enum fe_code_rate: type of the Forward Error Correction. --------------------------------------------------------- - - -.. _fe-code-rate: - -.. flat-table:: enum fe_code_rate - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _FEC-NONE: - - ``FEC_NONE`` - - - No Forward Error Correction Code - - - .. row 3 - - - .. _FEC-AUTO: - - ``FEC_AUTO`` - - - Autodetect Error Correction Code - - - .. row 4 - - - .. _FEC-1-2: - - ``FEC_1_2`` - - - Forward Error Correction Code 1/2 - - - .. row 5 - - - .. _FEC-2-3: - - ``FEC_2_3`` - - - Forward Error Correction Code 2/3 - - - .. row 6 - - - .. _FEC-3-4: - - ``FEC_3_4`` - - - Forward Error Correction Code 3/4 - - - .. row 7 - - - .. _FEC-4-5: - - ``FEC_4_5`` - - - Forward Error Correction Code 4/5 - - - .. row 8 - - - .. _FEC-5-6: - - ``FEC_5_6`` - - - Forward Error Correction Code 5/6 - - - .. row 9 - - - .. _FEC-6-7: - - ``FEC_6_7`` - - - Forward Error Correction Code 6/7 - - - .. row 10 - - - .. _FEC-7-8: - - ``FEC_7_8`` - - - Forward Error Correction Code 7/8 - - - .. row 11 - - - .. _FEC-8-9: - - ``FEC_8_9`` - - - Forward Error Correction Code 8/9 - - - .. row 12 - - - .. _FEC-9-10: - - ``FEC_9_10`` - - - Forward Error Correction Code 9/10 - - - .. row 13 - - - .. _FEC-2-5: - - ``FEC_2_5`` - - - Forward Error Correction Code 2/5 - - - .. row 14 - - - .. _FEC-3-5: - - ``FEC_3_5`` - - - Forward Error Correction Code 3/5 - - - -.. _DTV-VOLTAGE: - -DTV_VOLTAGE -=========== - -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. - - -.. _fe-sec-voltage: - -.. flat-table:: enum fe_sec_voltage - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _SEC-VOLTAGE-13: - - ``SEC_VOLTAGE_13`` - - - Set DC voltage level to 13V - - - .. row 3 - - - .. _SEC-VOLTAGE-18: - - ``SEC_VOLTAGE_18`` - - - Set DC voltage level to 18V - - - .. row 4 - - - .. _SEC-VOLTAGE-OFF: - - ``SEC_VOLTAGE_OFF`` - - - Don't send any voltage to the antenna - - - -.. _DTV-TONE: - -DTV_TONE -======== - -Currently not used. - - -.. _DTV-PILOT: - -DTV_PILOT -========= - -Sets DVB-S2 pilot - - -.. _fe-pilot-t: - -fe_pilot type -------------- - - -.. _fe-pilot: - -.. flat-table:: enum fe_pilot - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _PILOT-ON: - - ``PILOT_ON`` - - - Pilot tones enabled - - - .. row 3 - - - .. _PILOT-OFF: - - ``PILOT_OFF`` - - - Pilot tones disabled - - - .. row 4 - - - .. _PILOT-AUTO: - - ``PILOT_AUTO`` - - - Autodetect pilot tones - - - -.. _DTV-ROLLOFF: - -DTV_ROLLOFF -=========== - -Sets DVB-S2 rolloff - - -.. _fe-rolloff-t: - -fe_rolloff type ---------------- - - -.. _fe-rolloff: - -.. flat-table:: enum fe_rolloff - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _ROLLOFF-35: - - ``ROLLOFF_35`` - - - Roloff factor: α=35% - - - .. row 3 - - - .. _ROLLOFF-20: - - ``ROLLOFF_20`` - - - Roloff factor: α=20% - - - .. row 4 - - - .. _ROLLOFF-25: - - ``ROLLOFF_25`` - - - Roloff factor: α=25% - - - .. row 5 - - - .. _ROLLOFF-AUTO: - - ``ROLLOFF_AUTO`` - - - Auto-detect the roloff factor. - - - -.. _DTV-DISEQC-SLAVE-REPLY: - -DTV_DISEQC_SLAVE_REPLY -====================== - -Currently not implemented. - - -.. _DTV-FE-CAPABILITY-COUNT: - -DTV_FE_CAPABILITY_COUNT -======================= - -Currently not implemented. - - -.. _DTV-FE-CAPABILITY: - -DTV_FE_CAPABILITY -================= - -Currently not implemented. - - -.. _DTV-DELIVERY-SYSTEM: - -DTV_DELIVERY_SYSTEM -=================== - -Specifies the type of Delivery system - - -.. _fe-delivery-system-t: - -fe_delivery_system type ------------------------ - -Possible values: - - -.. _fe-delivery-system: - -.. flat-table:: enum fe_delivery_system - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _SYS-UNDEFINED: - - ``SYS_UNDEFINED`` - - - Undefined standard. Generally, indicates an error - - - .. row 3 - - - .. _SYS-DVBC-ANNEX-A: - - ``SYS_DVBC_ANNEX_A`` - - - Cable TV: DVB-C following ITU-T J.83 Annex A spec - - - .. row 4 - - - .. _SYS-DVBC-ANNEX-B: - - ``SYS_DVBC_ANNEX_B`` - - - Cable TV: DVB-C following ITU-T J.83 Annex B spec (ClearQAM) - - - .. row 5 - - - .. _SYS-DVBC-ANNEX-C: - - ``SYS_DVBC_ANNEX_C`` - - - Cable TV: DVB-C following ITU-T J.83 Annex C spec - - - .. row 6 - - - .. _SYS-ISDBC: - - ``SYS_ISDBC`` - - - Cable TV: ISDB-C (no drivers yet) - - - .. row 7 - - - .. _SYS-DVBT: - - ``SYS_DVBT`` - - - Terrestral TV: DVB-T - - - .. row 8 - - - .. _SYS-DVBT2: - - ``SYS_DVBT2`` - - - Terrestral TV: DVB-T2 - - - .. row 9 - - - .. _SYS-ISDBT: - - ``SYS_ISDBT`` - - - Terrestral TV: ISDB-T - - - .. row 10 - - - .. _SYS-ATSC: - - ``SYS_ATSC`` - - - Terrestral TV: ATSC - - - .. row 11 - - - .. _SYS-ATSCMH: - - ``SYS_ATSCMH`` - - - Terrestral TV (mobile): ATSC-M/H - - - .. row 12 - - - .. _SYS-DTMB: - - ``SYS_DTMB`` - - - Terrestrial TV: DTMB - - - .. row 13 - - - .. _SYS-DVBS: - - ``SYS_DVBS`` - - - Satellite TV: DVB-S - - - .. row 14 - - - .. _SYS-DVBS2: - - ``SYS_DVBS2`` - - - Satellite TV: DVB-S2 - - - .. row 15 - - - .. _SYS-TURBO: - - ``SYS_TURBO`` - - - Satellite TV: DVB-S Turbo - - - .. row 16 - - - .. _SYS-ISDBS: - - ``SYS_ISDBS`` - - - Satellite TV: ISDB-S - - - .. row 17 - - - .. _SYS-DAB: - - ``SYS_DAB`` - - - Digital audio: DAB (not fully supported) - - - .. row 18 - - - .. _SYS-DSS: - - ``SYS_DSS`` - - - Satellite TV:"DSS (not fully supported) - - - .. row 19 - - - .. _SYS-CMMB: - - ``SYS_CMMB`` - - - Terrestral TV (mobile):CMMB (not fully supported) - - - .. row 20 - - - .. _SYS-DVBH: - - ``SYS_DVBH`` - - - Terrestral TV (mobile): DVB-H (standard deprecated) - - - -.. _DTV-ISDBT-PARTIAL-RECEPTION: - -DTV_ISDBT_PARTIAL_RECEPTION -=========================== - -If ``DTV_ISDBT_SOUND_BROADCASTING`` is '0' this bit-field represents -whether the channel is in partial reception mode or not. - -If '1' ``DTV_ISDBT_LAYERA_*`` values are assigned to the center segment -and ``DTV_ISDBT_LAYERA_SEGMENT_COUNT`` has to be '1'. - -If in addition ``DTV_ISDBT_SOUND_BROADCASTING`` is '1' -``DTV_ISDBT_PARTIAL_RECEPTION`` represents whether this ISDB-Tsb channel -is consisting of one segment and layer or three segments and two layers. - -Possible values: 0, 1, -1 (AUTO) - - -.. _DTV-ISDBT-SOUND-BROADCASTING: - -DTV_ISDBT_SOUND_BROADCASTING -============================ - -This field represents whether the other DTV_ISDBT_*-parameters are -referring to an ISDB-T and an ISDB-Tsb channel. (See also -``DTV_ISDBT_PARTIAL_RECEPTION``). - -Possible values: 0, 1, -1 (AUTO) - - -.. _DTV-ISDBT-SB-SUBCHANNEL-ID: - -DTV_ISDBT_SB_SUBCHANNEL_ID -========================== - -This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'. - -(Note of the author: This might not be the correct description of the -``SUBCHANNEL-ID`` in all details, but it is my understanding of the -technical background needed to program a device) - -An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a -set of connected ISDB-Tsb channels. In this set of channels every -channel can be received independently. The number of connected ISDB-Tsb -segment can vary, e.g. depending on the frequency spectrum bandwidth -available. - -Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The -broadcaster has several possibilities to put those channels in the air: -Assuming a normal 13-segment ISDB-T spectrum he can align the 8 segments -from position 1-8 to 5-13 or anything in between. - -The underlying layer of segments are subchannels: each segment is -consisting of several subchannels with a predefined IDs. A sub-channel -is used to help the demodulator to synchronize on the channel. - -An ISDB-T channel is always centered over all sub-channels. As for the -example above, in ISDB-Tsb it is no longer as simple as that. - -``The DTV_ISDBT_SB_SUBCHANNEL_ID`` parameter is used to give the -sub-channel ID of the segment to be demodulated. - -Possible values: 0 .. 41, -1 (AUTO) - - -.. _DTV-ISDBT-SB-SEGMENT-IDX: - -DTV_ISDBT_SB_SEGMENT_IDX -======================== - -This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'. - -``DTV_ISDBT_SB_SEGMENT_IDX`` gives the index of the segment to be -demodulated for an ISDB-Tsb channel where several of them are -transmitted in the connected manner. - -Possible values: 0 .. ``DTV_ISDBT_SB_SEGMENT_COUNT`` - 1 - -Note: This value cannot be determined by an automatic channel search. - - -.. _DTV-ISDBT-SB-SEGMENT-COUNT: - -DTV_ISDBT_SB_SEGMENT_COUNT -========================== - -This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'. - -``DTV_ISDBT_SB_SEGMENT_COUNT`` gives the total count of connected -ISDB-Tsb channels. - -Possible values: 1 .. 13 - -Note: This value cannot be determined by an automatic channel search. - - -.. _isdb-hierq-layers: - -DTV-ISDBT-LAYER[A-C] parameters -=============================== - -ISDB-T channels can be coded hierarchically. As opposed to DVB-T in -ISDB-T hierarchical layers can be decoded simultaneously. For that -reason a ISDB-T demodulator has 3 Viterbi and 3 Reed-Solomon decoders. - -ISDB-T has 3 hierarchical layers which each can use a part of the -available segments. The total number of segments over all layers has to -13 in ISDB-T. - -There are 3 parameter sets, for Layers A, B and C. - - -.. _DTV-ISDBT-LAYER-ENABLED: - -DTV_ISDBT_LAYER_ENABLED ------------------------ - -Hierarchical reception in ISDB-T is achieved by enabling or disabling -layers in the decoding process. Setting all bits of -``DTV_ISDBT_LAYER_ENABLED`` to '1' forces all layers (if applicable) to -be demodulated. This is the default. - -If the channel is in the partial reception mode -(``DTV_ISDBT_PARTIAL_RECEPTION`` = 1) the central segment can be decoded -independently of the other 12 segments. In that mode layer A has to have -a ``SEGMENT_COUNT`` of 1. - -In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb according -to ``DTV_ISDBT_PARTIAL_RECEPTION``. ``SEGMENT_COUNT`` must be filled -accordingly. - -Only the values of the first 3 bits are used. Other bits will be silently ignored: - -``DTV_ISDBT_LAYER_ENABLED`` bit 0: layer A enabled - -``DTV_ISDBT_LAYER_ENABLED`` bit 1: layer B enabled - -``DTV_ISDBT_LAYER_ENABLED`` bit 2: layer C enabled - -``DTV_ISDBT_LAYER_ENABLED`` bits 3-31: unused - - -.. _DTV-ISDBT-LAYER-FEC: - -DTV_ISDBT_LAYER[A-C]_FEC ------------------------- - -Possible values: ``FEC_AUTO``, ``FEC_1_2``, ``FEC_2_3``, ``FEC_3_4``, -``FEC_5_6``, ``FEC_7_8`` - - -.. _DTV-ISDBT-LAYER-MODULATION: - -DTV_ISDBT_LAYER[A-C]_MODULATION -------------------------------- - -Possible values: ``QAM_AUTO``, QP\ ``SK, QAM_16``, ``QAM_64``, ``DQPSK`` - -Note: If layer C is ``DQPSK`` layer B has to be ``DQPSK``. If layer B is -``DQPSK`` and ``DTV_ISDBT_PARTIAL_RECEPTION``\ =0 layer has to be -``DQPSK``. - - -.. _DTV-ISDBT-LAYER-SEGMENT-COUNT: - -DTV_ISDBT_LAYER[A-C]_SEGMENT_COUNT ----------------------------------- - -Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO) - -Note: Truth table for ``DTV_ISDBT_SOUND_BROADCASTING`` and -``DTV_ISDBT_PARTIAL_RECEPTION`` and ``LAYER[A-C]_SEGMENT_COUNT`` - - -.. _isdbt-layer_seg-cnt-table: - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - PR - - - SB - - - Layer A width - - - Layer B width - - - Layer C width - - - total width - - - .. row 2 - - - 0 - - - 0 - - - 1 .. 13 - - - 1 .. 13 - - - 1 .. 13 - - - 13 - - - .. row 3 - - - 1 - - - 0 - - - 1 - - - 1 .. 13 - - - 1 .. 13 - - - 13 - - - .. row 4 - - - 0 - - - 1 - - - 1 - - - 0 - - - 0 - - - 1 - - - .. row 5 - - - 1 - - - 1 - - - 1 - - - 2 - - - 0 - - - 13 - - - -.. _DTV-ISDBT-LAYER-TIME-INTERLEAVING: - -DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING --------------------------------------- - -Valid values: 0, 1, 2, 4, -1 (AUTO) - -when DTV_ISDBT_SOUND_BROADCASTING is active, value 8 is also valid. - -Note: The real time interleaving length depends on the mode (fft-size). -The values here are referring to what can be found in the -TMCC-structure, as shown in the table below. - - -.. _isdbt-layer-interleaving-table: - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING`` - - - Mode 1 (2K FFT) - - - Mode 2 (4K FFT) - - - Mode 3 (8K FFT) - - - .. row 2 - - - 0 - - - 0 - - - 0 - - - 0 - - - .. row 3 - - - 1 - - - 4 - - - 2 - - - 1 - - - .. row 4 - - - 2 - - - 8 - - - 4 - - - 2 - - - .. row 5 - - - 4 - - - 16 - - - 8 - - - 4 - - - -.. _DTV-ATSCMH-FIC-VER: - -DTV_ATSCMH_FIC_VER ------------------- - -Version number of the FIC (Fast Information Channel) signaling data. - -FIC is used for relaying information to allow rapid service acquisition -by the receiver. - -Possible values: 0, 1, 2, 3, ..., 30, 31 - - -.. _DTV-ATSCMH-PARADE-ID: - -DTV_ATSCMH_PARADE_ID --------------------- - -Parade identification number - -A parade is a collection of up to eight MH groups, conveying one or two -ensembles. - -Possible values: 0, 1, 2, 3, ..., 126, 127 - - -.. _DTV-ATSCMH-NOG: - -DTV_ATSCMH_NOG --------------- - -Number of MH groups per MH subframe for a designated parade. - -Possible values: 1, 2, 3, 4, 5, 6, 7, 8 - - -.. _DTV-ATSCMH-TNOG: - -DTV_ATSCMH_TNOG ---------------- - -Total number of MH groups including all MH groups belonging to all MH -parades in one MH subframe. - -Possible values: 0, 1, 2, 3, ..., 30, 31 - - -.. _DTV-ATSCMH-SGN: - -DTV_ATSCMH_SGN --------------- - -Start group number. - -Possible values: 0, 1, 2, 3, ..., 14, 15 - - -.. _DTV-ATSCMH-PRC: - -DTV_ATSCMH_PRC --------------- - -Parade repetition cycle. - -Possible values: 1, 2, 3, 4, 5, 6, 7, 8 - - -.. _DTV-ATSCMH-RS-FRAME-MODE: - -DTV_ATSCMH_RS_FRAME_MODE ------------------------- - -Reed Solomon (RS) frame mode. - -Possible values are: - - -.. _atscmh-rs-frame-mode: - -.. flat-table:: enum atscmh_rs_frame_mode - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _ATSCMH-RSFRAME-PRI-ONLY: - - ``ATSCMH_RSFRAME_PRI_ONLY`` - - - Single Frame: There is only a primary RS Frame for all Group - Regions. - - - .. row 3 - - - .. _ATSCMH-RSFRAME-PRI-SEC: - - ``ATSCMH_RSFRAME_PRI_SEC`` - - - 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. - - - -.. _DTV-ATSCMH-RS-FRAME-ENSEMBLE: - -DTV_ATSCMH_RS_FRAME_ENSEMBLE ----------------------------- - -Reed Solomon(RS) frame ensemble. - -Possible values are: - - -.. _atscmh-rs-frame-ensemble: - -.. flat-table:: enum atscmh_rs_frame_ensemble - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _ATSCMH-RSFRAME-ENS-PRI: - - ``ATSCMH_RSFRAME_ENS_PRI`` - - - Primary Ensemble. - - - .. row 3 - - - .. _ATSCMH-RSFRAME-ENS-SEC: - - ``AATSCMH_RSFRAME_PRI_SEC`` - - - Secondary Ensemble. - - - .. row 4 - - - .. _ATSCMH-RSFRAME-RES: - - ``AATSCMH_RSFRAME_RES`` - - - Reserved. Shouldn't be used. - - - -.. _DTV-ATSCMH-RS-CODE-MODE-PRI: - -DTV_ATSCMH_RS_CODE_MODE_PRI ---------------------------- - -Reed Solomon (RS) code mode (primary). - -Possible values are: - - -.. _atscmh-rs-code-mode: - -.. flat-table:: enum atscmh_rs_code_mode - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _ATSCMH-RSCODE-211-187: - - ``ATSCMH_RSCODE_211_187`` - - - Reed Solomon code (211,187). - - - .. row 3 - - - .. _ATSCMH-RSCODE-223-187: - - ``ATSCMH_RSCODE_223_187`` - - - Reed Solomon code (223,187). - - - .. row 4 - - - .. _ATSCMH-RSCODE-235-187: - - ``ATSCMH_RSCODE_235_187`` - - - Reed Solomon code (235,187). - - - .. row 5 - - - .. _ATSCMH-RSCODE-RES: - - ``ATSCMH_RSCODE_RES`` - - - Reserved. Shouldn't be used. - - - -.. _DTV-ATSCMH-RS-CODE-MODE-SEC: - -DTV_ATSCMH_RS_CODE_MODE_SEC ---------------------------- - -Reed Solomon (RS) code mode (secondary). - -Possible values are the same as documented on enum -:ref:`atscmh_rs_code_mode `: - - -.. _DTV-ATSCMH-SCCC-BLOCK-MODE: - -DTV_ATSCMH_SCCC_BLOCK_MODE --------------------------- - -Series Concatenated Convolutional Code Block Mode. - -Possible values are: - - -.. _atscmh-sccc-block-mode: - -.. flat-table:: enum atscmh_scc_block_mode - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _ATSCMH-SCCC-BLK-SEP: - - ``ATSCMH_SCCC_BLK_SEP`` - - - Separate SCCC: the SCCC outer code mode shall be set independently - for each Group Region (A, B, C, D) - - - .. row 3 - - - .. _ATSCMH-SCCC-BLK-COMB: - - ``ATSCMH_SCCC_BLK_COMB`` - - - Combined SCCC: all four Regions shall have the same SCCC outer - code mode. - - - .. row 4 - - - .. _ATSCMH-SCCC-BLK-RES: - - ``ATSCMH_SCCC_BLK_RES`` - - - Reserved. Shouldn't be used. - - - -.. _DTV-ATSCMH-SCCC-CODE-MODE-A: - -DTV_ATSCMH_SCCC_CODE_MODE_A ---------------------------- - -Series Concatenated Convolutional Code Rate. - -Possible values are: - - -.. _atscmh-sccc-code-mode: - -.. flat-table:: enum atscmh_sccc_code_mode - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _ATSCMH-SCCC-CODE-HLF: - - ``ATSCMH_SCCC_CODE_HLF`` - - - The outer code rate of a SCCC Block is 1/2 rate. - - - .. row 3 - - - .. _ATSCMH-SCCC-CODE-QTR: - - ``ATSCMH_SCCC_CODE_QTR`` - - - The outer code rate of a SCCC Block is 1/4 rate. - - - .. row 4 - - - .. _ATSCMH-SCCC-CODE-RES: - - ``ATSCMH_SCCC_CODE_RES`` - - - to be documented. - - - -.. _DTV-ATSCMH-SCCC-CODE-MODE-B: - -DTV_ATSCMH_SCCC_CODE_MODE_B ---------------------------- - -Series Concatenated Convolutional Code Rate. - -Possible values are the same as documented on enum -:ref:`atscmh_sccc_code_mode `. - - -.. _DTV-ATSCMH-SCCC-CODE-MODE-C: - -DTV_ATSCMH_SCCC_CODE_MODE_C ---------------------------- - -Series Concatenated Convolutional Code Rate. - -Possible values are the same as documented on enum -:ref:`atscmh_sccc_code_mode `. - - -.. _DTV-ATSCMH-SCCC-CODE-MODE-D: - -DTV_ATSCMH_SCCC_CODE_MODE_D ---------------------------- - -Series Concatenated Convolutional Code Rate. - -Possible values are the same as documented on enum -:ref:`atscmh_sccc_code_mode `. - - -.. _DTV-API-VERSION: - -DTV_API_VERSION -=============== - -Returns the major/minor version of the DVB API - - -.. _DTV-CODE-RATE-HP: - -DTV_CODE_RATE_HP -================ - -Used on terrestrial transmissions. The acceptable values are the ones -described at :ref:`fe_transmit_mode_t `. - - -.. _DTV-CODE-RATE-LP: - -DTV_CODE_RATE_LP -================ - -Used on terrestrial transmissions. The acceptable values are the ones -described at :ref:`fe_transmit_mode_t `. - - -.. _DTV-GUARD-INTERVAL: - -DTV_GUARD_INTERVAL -================== - -Possible values are: - - -.. _fe-guard-interval-t: - -Modulation guard interval -------------------------- - - -.. _fe-guard-interval: - -.. flat-table:: enum fe_guard_interval - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _GUARD-INTERVAL-AUTO: - - ``GUARD_INTERVAL_AUTO`` - - - Autodetect the guard interval - - - .. row 3 - - - .. _GUARD-INTERVAL-1-128: - - ``GUARD_INTERVAL_1_128`` - - - Guard interval 1/128 - - - .. row 4 - - - .. _GUARD-INTERVAL-1-32: - - ``GUARD_INTERVAL_1_32`` - - - Guard interval 1/32 - - - .. row 5 - - - .. _GUARD-INTERVAL-1-16: - - ``GUARD_INTERVAL_1_16`` - - - Guard interval 1/16 - - - .. row 6 - - - .. _GUARD-INTERVAL-1-8: - - ``GUARD_INTERVAL_1_8`` - - - Guard interval 1/8 - - - .. row 7 - - - .. _GUARD-INTERVAL-1-4: - - ``GUARD_INTERVAL_1_4`` - - - Guard interval 1/4 - - - .. row 8 - - - .. _GUARD-INTERVAL-19-128: - - ``GUARD_INTERVAL_19_128`` - - - Guard interval 19/128 - - - .. row 9 - - - .. _GUARD-INTERVAL-19-256: - - ``GUARD_INTERVAL_19_256`` - - - Guard interval 19/256 - - - .. row 10 - - - .. _GUARD-INTERVAL-PN420: - - ``GUARD_INTERVAL_PN420`` - - - PN length 420 (1/4) - - - .. row 11 - - - .. _GUARD-INTERVAL-PN595: - - ``GUARD_INTERVAL_PN595`` - - - PN length 595 (1/6) - - - .. row 12 - - - .. _GUARD-INTERVAL-PN945: - - ``GUARD_INTERVAL_PN945`` - - - PN length 945 (1/9) - - -Notes: - -1) If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the -hardware will try to find the correct guard interval (if capable) and -will use TMCC to fill in the missing parameters. - -2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at -present - -3) DTMB specifies PN420, PN595 and PN945. - - -.. _DTV-TRANSMISSION-MODE: - -DTV_TRANSMISSION_MODE -===================== - -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 - - -.. _fe-transmit-mode-t: - -enum fe_transmit_mode: Number of carriers per channel ------------------------------------------------------ - - -.. _fe-transmit-mode: - -.. flat-table:: enum fe_transmit_mode - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _TRANSMISSION-MODE-AUTO: - - ``TRANSMISSION_MODE_AUTO`` - - - Autodetect transmission mode. The hardware will try to find the - correct FFT-size (if capable) to fill in the missing parameters. - - - .. row 3 - - - .. _TRANSMISSION-MODE-1K: - - ``TRANSMISSION_MODE_1K`` - - - Transmission mode 1K - - - .. row 4 - - - .. _TRANSMISSION-MODE-2K: - - ``TRANSMISSION_MODE_2K`` - - - Transmission mode 2K - - - .. row 5 - - - .. _TRANSMISSION-MODE-8K: - - ``TRANSMISSION_MODE_8K`` - - - Transmission mode 8K - - - .. row 6 - - - .. _TRANSMISSION-MODE-4K: - - ``TRANSMISSION_MODE_4K`` - - - Transmission mode 4K - - - .. row 7 - - - .. _TRANSMISSION-MODE-16K: - - ``TRANSMISSION_MODE_16K`` - - - Transmission mode 16K - - - .. row 8 - - - .. _TRANSMISSION-MODE-32K: - - ``TRANSMISSION_MODE_32K`` - - - Transmission mode 32K - - - .. row 9 - - - .. _TRANSMISSION-MODE-C1: - - ``TRANSMISSION_MODE_C1`` - - - Single Carrier (C=1) transmission mode (DTMB) - - - .. row 10 - - - .. _TRANSMISSION-MODE-C3780: - - ``TRANSMISSION_MODE_C3780`` - - - Multi Carrier (C=3780) transmission mode (DTMB) - - -Notes: - -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 - -2) If ``DTV_TRANSMISSION_MODE`` is set the ``TRANSMISSION_MODE_AUTO`` -the hardware will try to find the correct FFT-size (if capable) and will -use TMCC to fill in the missing parameters. - -3) DVB-T specifies 2K and 8K as valid sizes. - -4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K. - -5) DTMB specifies C1 and C3780. - - -.. _DTV-HIERARCHY: - -DTV_HIERARCHY -============= - -Frontend hierarchy - - -.. _fe-hierarchy-t: - -Frontend hierarchy ------------------- - - -.. _fe-hierarchy: - -.. flat-table:: enum fe_hierarchy - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _HIERARCHY-NONE: - - ``HIERARCHY_NONE`` - - - No hierarchy - - - .. row 3 - - - .. _HIERARCHY-AUTO: - - ``HIERARCHY_AUTO`` - - - Autodetect hierarchy (if supported) - - - .. row 4 - - - .. _HIERARCHY-1: - - ``HIERARCHY_1`` - - - Hierarchy 1 - - - .. row 5 - - - .. _HIERARCHY-2: - - ``HIERARCHY_2`` - - - Hierarchy 2 - - - .. row 6 - - - .. _HIERARCHY-4: - - ``HIERARCHY_4`` - - - Hierarchy 4 - - - -.. _DTV-STREAM-ID: - -DTV_STREAM_ID -============= - -DVB-S2, DVB-T2 and ISDB-S support the transmission of several streams on -a single transport stream. This property enables the DVB driver to -handle substream filtering, when supported by the hardware. By default, -substream filtering is disabled. - -For DVB-S2 and DVB-T2, the valid substream id range is from 0 to 255. - -For ISDB, the valid substream id range is from 1 to 65535. - -To disable it, you should use the special macro NO_STREAM_ID_FILTER. - -Note: any value outside the id range also disables filtering. - - -.. _DTV-DVBT2-PLP-ID-LEGACY: - -DTV_DVBT2_PLP_ID_LEGACY -======================= - -Obsolete, replaced with DTV_STREAM_ID. - - -.. _DTV-ENUM-DELSYS: - -DTV_ENUM_DELSYS -=============== - -A Multi standard frontend needs to advertise the delivery systems -provided. Applications need to enumerate the provided delivery systems, -before using any other operation with the frontend. Prior to it's -introduction, FE_GET_INFO was used to determine a frontend type. A -frontend which provides more than a single delivery system, -FE_GET_INFO doesn't help much. Applications which intends to use a -multistandard frontend must enumerate the delivery systems associated -with it, rather than trying to use FE_GET_INFO. In the case of a -legacy frontend, the result is just the same as with FE_GET_INFO, but -in a more structured format - - -.. _DTV-INTERLEAVING: - -DTV_INTERLEAVING -================ - -Time interleaving to be used. Currently, used only on DTMB. - - -.. _fe-interleaving: - -.. flat-table:: enum fe_interleaving - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - .. _INTERLEAVING-NONE: - - ``INTERLEAVING_NONE`` - - - No interleaving. - - - .. row 3 - - - .. _INTERLEAVING-AUTO: - - ``INTERLEAVING_AUTO`` - - - Auto-detect interleaving. - - - .. row 4 - - - .. _INTERLEAVING-240: - - ``INTERLEAVING_240`` - - - Interleaving of 240 symbols. - - - .. row 5 - - - .. _INTERLEAVING-720: - - ``INTERLEAVING_720`` - - - Interleaving of 720 symbols. - - - -.. _DTV-LNA: - -DTV_LNA -======= - -Low-noise amplifier. - -Hardware might offer controllable LNA which can be set manually using -that parameter. Usually LNA could be found only from terrestrial devices -if at all. - -Possible values: 0, 1, LNA_AUTO - -0, LNA off - -1, LNA on - -use the special macro LNA_AUTO to set LNA auto diff --git a/Documentation/linux_tv/media/dvb/frontend-property-cable-systems.rst b/Documentation/linux_tv/media/dvb/frontend-property-cable-systems.rst deleted file mode 100644 index bf2328627af5..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend-property-cable-systems.rst +++ /dev/null @@ -1,75 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend-property-cable-systems: - -***************************************** -Properties used on cable delivery systems -***************************************** - - -.. _dvbc-params: - -DVB-C delivery system -===================== - -The DVB-C Annex-A is the widely used cable standard. Transmission uses -QAM modulation. - -The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It -supports a subset of the Annex A modulation types, and a roll-off of -0.13, instead of 0.15 - -The following parameters are valid for DVB-C Annex A/C: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_SYMBOL_RATE ` - -- :ref:`DTV_INNER_FEC ` - -- :ref:`DTV_LNA ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _dvbc-annex-b-params: - -DVB-C Annex B delivery system -============================= - -The DVB-C Annex-B is only used on a few Countries like the United -States. - -The following parameters are valid for DVB-C Annex B: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_LNA ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. diff --git a/Documentation/linux_tv/media/dvb/frontend-property-satellite-systems.rst b/Documentation/linux_tv/media/dvb/frontend-property-satellite-systems.rst deleted file mode 100644 index 1f40399c68ff..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend-property-satellite-systems.rst +++ /dev/null @@ -1,103 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend-property-satellite-systems: - -********************************************* -Properties used on satellite delivery systems -********************************************* - - -.. _dvbs-params: - -DVB-S delivery system -===================== - -The following parameters are valid for DVB-S: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_SYMBOL_RATE ` - -- :ref:`DTV_INNER_FEC ` - -- :ref:`DTV_VOLTAGE ` - -- :ref:`DTV_TONE ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - -Future implementations might add those two missing parameters: - -- :ref:`DTV_DISEQC_MASTER ` - -- :ref:`DTV_DISEQC_SLAVE_REPLY ` - - -.. _dvbs2-params: - -DVB-S2 delivery system -====================== - -In addition to all parameters valid for DVB-S, DVB-S2 supports the -following parameters: - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_PILOT ` - -- :ref:`DTV_ROLLOFF ` - -- :ref:`DTV_STREAM_ID ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _turbo-params: - -Turbo code delivery system -========================== - -In addition to all parameters valid for DVB-S, turbo code supports the -following parameters: - -- :ref:`DTV_MODULATION ` - - -.. _isdbs-params: - -ISDB-S delivery system -====================== - -The following parameters are valid for ISDB-S: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_SYMBOL_RATE ` - -- :ref:`DTV_INNER_FEC ` - -- :ref:`DTV_VOLTAGE ` - -- :ref:`DTV_STREAM_ID ` diff --git a/Documentation/linux_tv/media/dvb/frontend-property-terrestrial-systems.rst b/Documentation/linux_tv/media/dvb/frontend-property-terrestrial-systems.rst deleted file mode 100644 index dbc717cad9ee..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend-property-terrestrial-systems.rst +++ /dev/null @@ -1,294 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend-property-terrestrial-systems: - -*********************************************** -Properties used on terrestrial delivery systems -*********************************************** - - -.. _dvbt-params: - -DVB-T delivery system -===================== - -The following parameters are valid for DVB-T: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_BANDWIDTH_HZ ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_CODE_RATE_HP ` - -- :ref:`DTV_CODE_RATE_LP ` - -- :ref:`DTV_GUARD_INTERVAL ` - -- :ref:`DTV_TRANSMISSION_MODE ` - -- :ref:`DTV_HIERARCHY ` - -- :ref:`DTV_LNA ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _dvbt2-params: - -DVB-T2 delivery system -====================== - -DVB-T2 support is currently in the early stages of development, so -expect that this section maygrow and become more detailed with time. - -The following parameters are valid for DVB-T2: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_BANDWIDTH_HZ ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_CODE_RATE_HP ` - -- :ref:`DTV_CODE_RATE_LP ` - -- :ref:`DTV_GUARD_INTERVAL ` - -- :ref:`DTV_TRANSMISSION_MODE ` - -- :ref:`DTV_HIERARCHY ` - -- :ref:`DTV_STREAM_ID ` - -- :ref:`DTV_LNA ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _isdbt: - -ISDB-T delivery system -====================== - -This ISDB-T/ISDB-Tsb API extension should reflect all information needed -to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible that some -very sophisticated devices won't need certain parameters to tune. - -The information given here should help application writers to know how -to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API. - -The details given here about ISDB-T and ISDB-Tsb are just enough to -basically show the dependencies between the needed parameter values, but -surely some information is left out. For more detailed information see -the following documents: - -ARIB STD-B31 - "Transmission System for Digital Terrestrial Television -Broadcasting" and - -ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial Television -Broadcasting". - -In order to understand the ISDB specific parameters, one has to have -some knowledge the channel structure in ISDB-T and ISDB-Tsb. I.e. it has -to be known to the reader that an ISDB-T channel consists of 13 -segments, that it can have up to 3 layer sharing those segments, and -things like that. - -The following parameters are valid for ISDB-T: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_BANDWIDTH_HZ ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_GUARD_INTERVAL ` - -- :ref:`DTV_TRANSMISSION_MODE ` - -- :ref:`DTV_ISDBT_LAYER_ENABLED ` - -- :ref:`DTV_ISDBT_PARTIAL_RECEPTION ` - -- :ref:`DTV_ISDBT_SOUND_BROADCASTING ` - -- :ref:`DTV_ISDBT_SB_SUBCHANNEL_ID ` - -- :ref:`DTV_ISDBT_SB_SEGMENT_IDX ` - -- :ref:`DTV_ISDBT_SB_SEGMENT_COUNT ` - -- :ref:`DTV_ISDBT_LAYERA_FEC ` - -- :ref:`DTV_ISDBT_LAYERA_MODULATION ` - -- :ref:`DTV_ISDBT_LAYERA_SEGMENT_COUNT ` - -- :ref:`DTV_ISDBT_LAYERA_TIME_INTERLEAVING ` - -- :ref:`DTV_ISDBT_LAYERB_FEC ` - -- :ref:`DTV_ISDBT_LAYERB_MODULATION ` - -- :ref:`DTV_ISDBT_LAYERB_SEGMENT_COUNT ` - -- :ref:`DTV_ISDBT_LAYERB_TIME_INTERLEAVING ` - -- :ref:`DTV_ISDBT_LAYERC_FEC ` - -- :ref:`DTV_ISDBT_LAYERC_MODULATION ` - -- :ref:`DTV_ISDBT_LAYERC_SEGMENT_COUNT ` - -- :ref:`DTV_ISDBT_LAYERC_TIME_INTERLEAVING ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _atsc-params: - -ATSC delivery system -==================== - -The following parameters are valid for ATSC: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_BANDWIDTH_HZ ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _atscmh-params: - -ATSC-MH delivery system -======================= - -The following parameters are valid for ATSC-MH: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_BANDWIDTH_HZ ` - -- :ref:`DTV_ATSCMH_FIC_VER ` - -- :ref:`DTV_ATSCMH_PARADE_ID ` - -- :ref:`DTV_ATSCMH_NOG ` - -- :ref:`DTV_ATSCMH_TNOG ` - -- :ref:`DTV_ATSCMH_SGN ` - -- :ref:`DTV_ATSCMH_PRC ` - -- :ref:`DTV_ATSCMH_RS_FRAME_MODE ` - -- :ref:`DTV_ATSCMH_RS_FRAME_ENSEMBLE ` - -- :ref:`DTV_ATSCMH_RS_CODE_MODE_PRI ` - -- :ref:`DTV_ATSCMH_RS_CODE_MODE_SEC ` - -- :ref:`DTV_ATSCMH_SCCC_BLOCK_MODE ` - -- :ref:`DTV_ATSCMH_SCCC_CODE_MODE_A ` - -- :ref:`DTV_ATSCMH_SCCC_CODE_MODE_B ` - -- :ref:`DTV_ATSCMH_SCCC_CODE_MODE_C ` - -- :ref:`DTV_ATSCMH_SCCC_CODE_MODE_D ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. - - -.. _dtmb-params: - -DTMB delivery system -==================== - -The following parameters are valid for DTMB: - -- :ref:`DTV_API_VERSION ` - -- :ref:`DTV_DELIVERY_SYSTEM ` - -- :ref:`DTV_TUNE ` - -- :ref:`DTV_CLEAR ` - -- :ref:`DTV_FREQUENCY ` - -- :ref:`DTV_MODULATION ` - -- :ref:`DTV_BANDWIDTH_HZ ` - -- :ref:`DTV_INVERSION ` - -- :ref:`DTV_INNER_FEC ` - -- :ref:`DTV_GUARD_INTERVAL ` - -- :ref:`DTV_TRANSMISSION_MODE ` - -- :ref:`DTV_INTERLEAVING ` - -- :ref:`DTV_LNA ` - -In addition, the :ref:`DTV QoS statistics ` -are also valid. diff --git a/Documentation/linux_tv/media/dvb/frontend-stat-properties.rst b/Documentation/linux_tv/media/dvb/frontend-stat-properties.rst deleted file mode 100644 index 0fc4aaa304ff..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend-stat-properties.rst +++ /dev/null @@ -1,245 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend-stat-properties: - -****************************** -Frontend statistics indicators -****************************** - -The values are returned via ``dtv_property.stat``. If the property is -supported, ``dtv_property.stat.len`` is bigger than zero. - -For most delivery systems, ``dtv_property.stat.len`` will be 1 if the -stats is supported, and the properties will return a single value for -each parameter. - -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 -``dtv_property.stat.len`` is updated to reflect the "global" metrics, -plus one metric per each carrier group (called "layer" on ISDB). - -So, in order to be consistent with other delivery systems, the first -value at :ref:`dtv_property.stat.dtv_stats ` array refers -to the global metric. The other elements of the array represent each -layer, starting from layer A(index 1), layer B (index 2) and so on. - -The number of filled elements are stored at ``dtv_property.stat.len``. - -Each element of the ``dtv_property.stat.dtv_stats`` array consists on -two elements: - -- ``svalue`` or ``uvalue``, where ``svalue`` is for signed values of - the measure (dB measures) and ``uvalue`` is for unsigned values - (counters, relative scale) - -- ``scale`` - Scale for the value. It can be: - - - ``FE_SCALE_NOT_AVAILABLE`` - The parameter is supported by the - frontend, but it was not possible to collect it (could be a - transitory or permanent condition) - - - ``FE_SCALE_DECIBEL`` - parameter is a signed value, measured in - 1/1000 dB - - - ``FE_SCALE_RELATIVE`` - parameter is a unsigned value, where 0 - means 0% and 65535 means 100%. - - - ``FE_SCALE_COUNTER`` - parameter is a unsigned value that counts - the occurrence of an event, like bit error, block error, or lapsed - time. - - -.. _DTV-STAT-SIGNAL-STRENGTH: - -DTV_STAT_SIGNAL_STRENGTH -======================== - -Indicates the signal strength level at the analog part of the tuner or -of the demod. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_DECIBEL`` - signal strength is in 0.001 dBm units, power - measured in miliwatts. This value is generally negative. - -- ``FE_SCALE_RELATIVE`` - The frontend provides a 0% to 100% - measurement for power (actually, 0 to 65535). - - -.. _DTV-STAT-CNR: - -DTV_STAT_CNR -============ - -Indicates the Signal to Noise ratio for the main carrier. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_DECIBEL`` - Signal/Noise ratio is in 0.001 dB units. - -- ``FE_SCALE_RELATIVE`` - The frontend provides a 0% to 100% - measurement for Signal/Noise (actually, 0 to 65535). - - -.. _DTV-STAT-PRE-ERROR-BIT-COUNT: - -DTV_STAT_PRE_ERROR_BIT_COUNT -============================ - -Measures the number of bit errors before the forward error correction -(FEC) on the inner coding block (before Viterbi, LDPC or other inner -code). - -This measure is taken during the same interval as -``DTV_STAT_PRE_TOTAL_BIT_COUNT``. - -In order to get the BER (Bit Error Rate) measurement, it should be -divided by -:ref:`DTV_STAT_PRE_TOTAL_BIT_COUNT `. - -This measurement is monotonically increased, as the frontend gets more -bit count measurements. The frontend may reset it when a -channel/transponder is tuned. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_COUNTER`` - Number of error bits counted before the inner - coding. - - -.. _DTV-STAT-PRE-TOTAL-BIT-COUNT: - -DTV_STAT_PRE_TOTAL_BIT_COUNT -============================ - -Measures the amount of bits received before the inner code block, during -the same period as -:ref:`DTV_STAT_PRE_ERROR_BIT_COUNT ` -measurement was taken. - -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. - -This measurement is monotonically increased, as the frontend gets more -bit count measurements. The frontend may reset it when a -channel/transponder is tuned. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_COUNTER`` - Number of bits counted while measuring - :ref:`DTV_STAT_PRE_ERROR_BIT_COUNT `. - - -.. _DTV-STAT-POST-ERROR-BIT-COUNT: - -DTV_STAT_POST_ERROR_BIT_COUNT -============================= - -Measures the number of bit errors after the forward error correction -(FEC) done by inner code block (after Viterbi, LDPC or other inner -code). - -This measure is taken during the same interval as -``DTV_STAT_POST_TOTAL_BIT_COUNT``. - -In order to get the BER (Bit Error Rate) measurement, it should be -divided by -:ref:`DTV_STAT_POST_TOTAL_BIT_COUNT `. - -This measurement is monotonically increased, as the frontend gets more -bit count measurements. The frontend may reset it when a -channel/transponder is tuned. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_COUNTER`` - Number of error bits counted after the inner - coding. - - -.. _DTV-STAT-POST-TOTAL-BIT-COUNT: - -DTV_STAT_POST_TOTAL_BIT_COUNT -============================= - -Measures the amount of bits received after the inner coding, during the -same period as -:ref:`DTV_STAT_POST_ERROR_BIT_COUNT ` -measurement was taken. - -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. - -This measurement is monotonically increased, as the frontend gets more -bit count measurements. The frontend may reset it when a -channel/transponder is tuned. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_COUNTER`` - Number of bits counted while measuring - :ref:`DTV_STAT_POST_ERROR_BIT_COUNT `. - - -.. _DTV-STAT-ERROR-BLOCK-COUNT: - -DTV_STAT_ERROR_BLOCK_COUNT -========================== - -Measures the number of block errors after the outer forward error -correction coding (after Reed-Solomon or other outer code). - -This measurement is monotonically increased, as the frontend gets more -bit count measurements. The frontend may reset it when a -channel/transponder is tuned. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_COUNTER`` - Number of error blocks counted after the outer - coding. - - -.. _DTV-STAT-TOTAL-BLOCK-COUNT: - -DTV-STAT_TOTAL_BLOCK_COUNT -========================== - -Measures the total number of blocks received during the same period as -:ref:`DTV_STAT_ERROR_BLOCK_COUNT ` -measurement was taken. - -It can be used to calculate the PER indicator, by dividing -:ref:`DTV_STAT_ERROR_BLOCK_COUNT ` by -:ref:`DTV-STAT-TOTAL-BLOCK-COUNT`. - -Possible scales for this metric are: - -- ``FE_SCALE_NOT_AVAILABLE`` - it failed to measure it, or the - measurement was not complete yet. - -- ``FE_SCALE_COUNTER`` - Number of blocks counted while measuring - :ref:`DTV_STAT_ERROR_BLOCK_COUNT `. diff --git a/Documentation/linux_tv/media/dvb/frontend.rst b/Documentation/linux_tv/media/dvb/frontend.rst deleted file mode 100644 index 8c7e502bff1f..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend.rst +++ /dev/null @@ -1,51 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_frontend: - -################ -DVB Frontend API -################ -The DVB frontend API was designed to support three types of delivery -systems: - -- Terrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H, - DTMB, CMMB - -- Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B), ISDB-C - -- Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS - -The DVB frontend controls several sub-devices including: - -- Tuner - -- Digital TV demodulator - -- Low noise amplifier (LNA) - -- Satellite Equipment Control (SEC) hardware (only for Satellite). - -The frontend can be accessed through ``/dev/dvb/adapter?/frontend?``. -Data types and ioctl definitions can be accessed by including -``linux/dvb/frontend.h`` in your application. - -NOTE: Transmission via the internet (DVB-IP) is not yet handled by this -API but a future extension is possible. - -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 -`Eutelsat `__. - - -.. toctree:: - :maxdepth: 1 - - query-dvb-frontend-info - dvb-fe-read-status - dvbproperty - frontend_fcalls - frontend_legacy_dvbv3_api diff --git a/Documentation/linux_tv/media/dvb/frontend_f_close.rst b/Documentation/linux_tv/media/dvb/frontend_f_close.rst deleted file mode 100644 index 5cce9262084c..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend_f_close.rst +++ /dev/null @@ -1,48 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend_f_close: - -******************** -DVB frontend close() -******************** - -Name -==== - -fe-close - Close a frontend device - - -Synopsis -======== - -.. code-block:: c - - #include - - -.. cpp:function:: int close( int fd ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - - -Description -=========== - -This system call closes a previously opened front-end device. After -closing a front-end device, its corresponding hardware might be powered -down automatically. - - -Return Value -============ - -The function returns 0 on success, -1 on failure and the ``errno`` is -set appropriately. Possible error codes: - -EBADF - ``fd`` is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/frontend_f_open.rst b/Documentation/linux_tv/media/dvb/frontend_f_open.rst deleted file mode 100644 index e0c55345f524..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend_f_open.rst +++ /dev/null @@ -1,102 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend_f_open: - -******************* -DVB frontend open() -******************* - -Name -==== - -fe-open - Open a frontend device - - -Synopsis -======== - -.. code-block:: c - - #include - - -.. cpp:function:: int open( const char *device_name, int flags ) - - -Arguments -========= - -``device_name`` - Device to be opened. - -``flags`` - Open flags. Access can either be ``O_RDWR`` or ``O_RDONLY``. - - Multiple opens are allowed with ``O_RDONLY``. In this mode, only - query and read ioctls are allowed. - - Only one open is allowed in ``O_RDWR``. In this mode, all ioctls are - allowed. - - When the ``O_NONBLOCK`` flag is given, the system calls may return - ``EAGAIN`` error code when no data is available or when the device - driver is temporarily busy. - - Other flags have no effect. - - -Description -=========== - -This system call opens a named frontend device -(``/dev/dvb/adapter?/frontend?``) for subsequent use. Usually the first -thing to do after a successful open is to find out the frontend type -with :ref:`FE_GET_INFO`. - -The device can be opened in read-only mode, which only allows monitoring -of device status and statistics, or read/write mode, which allows any -kind of use (e.g. performing tuning operations.) - -In a system with multiple front-ends, it is usually the case that -multiple devices cannot be open in read/write mode simultaneously. As -long as a front-end device is opened in read/write mode, other open() -calls in read/write mode will either fail or block, depending on whether -non-blocking or blocking mode was specified. A front-end device opened -in blocking mode can later be put into non-blocking mode (and vice -versa) using the F_SETFL command of the fcntl system call. This is a -standard system call, documented in the Linux manual page for fcntl. -When an open() call has succeeded, the device will be ready 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. - - -Return Value -============ - -On success :ref:`open() ` returns the new file descriptor. -On error, -1 is returned, and the ``errno`` variable is set appropriately. - -Possible error codes are: - -EACCES - The caller has no permission to access the device. - -EBUSY - The the device driver is already in use. - -ENXIO - No device corresponding to this device special file exists. - -ENOMEM - Not enough kernel memory was available to complete the request. - -EMFILE - The process already has the maximum number of files open. - -ENFILE - The limit on the total number of files open on the system has been - reached. - -ENODEV - The device got removed. diff --git a/Documentation/linux_tv/media/dvb/frontend_fcalls.rst b/Documentation/linux_tv/media/dvb/frontend_fcalls.rst deleted file mode 100644 index b03f9cab6d5a..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend_fcalls.rst +++ /dev/null @@ -1,24 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend_fcalls: - -####################### -Frontend Function Calls -####################### - -.. toctree:: - :maxdepth: 1 - - frontend_f_open - frontend_f_close - fe-get-info - fe-read-status - fe-get-property - fe-diseqc-reset-overload - fe-diseqc-send-master-cmd - fe-diseqc-recv-slave-reply - fe-diseqc-send-burst - fe-set-tone - fe-set-voltage - fe-enable-high-lnb-voltage - fe-set-frontend-tune-mode diff --git a/Documentation/linux_tv/media/dvb/frontend_h.rst b/Documentation/linux_tv/media/dvb/frontend_h.rst deleted file mode 100644 index 15fca04d1c32..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend_h.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend_h: - -************************ -DVB Frontend Header File -************************ - -.. kernel-include:: $BUILDDIR/frontend.h.rst diff --git a/Documentation/linux_tv/media/dvb/frontend_legacy_api.rst b/Documentation/linux_tv/media/dvb/frontend_legacy_api.rst deleted file mode 100644 index 759833d3eaa4..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend_legacy_api.rst +++ /dev/null @@ -1,38 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend_legacy_types: - -Frontend Legacy Data Types -========================== - - -.. toctree:: - :maxdepth: 1 - - fe-type-t - fe-bandwidth-t - dvb-frontend-parameters - dvb-frontend-event - - -.. _frontend_legacy_fcalls: - -Frontend Legacy Function Calls -============================== - -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 - - -.. toctree:: - :maxdepth: 1 - - fe-read-ber - fe-read-snr - fe-read-signal-strength - fe-read-uncorrected-blocks - fe-set-frontend - fe-get-frontend - fe-get-event - fe-dishnetwork-send-legacy-cmd diff --git a/Documentation/linux_tv/media/dvb/frontend_legacy_dvbv3_api.rst b/Documentation/linux_tv/media/dvb/frontend_legacy_dvbv3_api.rst deleted file mode 100644 index 7d4a091b7d7f..000000000000 --- a/Documentation/linux_tv/media/dvb/frontend_legacy_dvbv3_api.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _frontend_legacy_dvbv3_api: - -**************************************** -DVB Frontend legacy API (a. k. a. DVBv3) -**************************************** - -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. - - -.. toctree:: - :maxdepth: 1 - - frontend_legacy_api diff --git a/Documentation/linux_tv/media/dvb/intro.rst b/Documentation/linux_tv/media/dvb/intro.rst deleted file mode 100644 index b61081d00a9f..000000000000 --- a/Documentation/linux_tv/media/dvb/intro.rst +++ /dev/null @@ -1,172 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_introdution: - -************ -Introduction -************ - - -.. _requisites: - -What you need to know -===================== - -The reader of this document is required to have some knowledge in the -area of digital video broadcasting (DVB) and should be familiar with -part I of the MPEG2 specification ISO/IEC 13818 (aka ITU-T H.222), i.e -you should know what a program/transport stream (PS/TS) is and what is -meant by a packetized elementary stream (PES) or an I-frame. - -Various DVB standards documents are available from http://www.dvb.org -and/or http://www.etsi.org. - -It is also necessary to know how to access unix/linux devices and how to -use ioctl calls. This also includes the knowledge of C or C++. - - -.. _history: - -History -======= - -The first API for DVB cards we used at Convergence in late 1999 was an -extension of the Video4Linux API which was primarily developed for frame -grabber cards. As such it was not really well suited to be used for DVB -cards and their new features like recording MPEG streams and filtering -several section and PES data streams at the same time. - -In early 2000, we were approached by Nokia with a proposal for a new -standard Linux DVB API. As a commitment to the development of terminals -based on open standards, Nokia and Convergence made it available to all -Linux developers and published it on https://linuxtv.org in September -2000. Convergence is the maintainer of the Linux DVB API. Together with -the LinuxTV community (i.e. you, the reader of this document), the Linux -DVB API will be constantly reviewed and improved. With the Linux driver -for the Siemens/Hauppauge DVB PCI card Convergence provides a first -implementation of the Linux DVB API. - - -.. _overview: - -Overview -======== - - -.. _stb_components: - -.. figure:: intro_files/dvbstb.* - :alt: dvbstb.pdf / dvbstb.png - :align: center - - Components of a DVB card/STB - -A DVB PCI card or DVB set-top-box (STB) usually consists of the -following main hardware components: - -- Frontend consisting of tuner and DVB demodulator - - Here the raw signal reaches the DVB hardware from a satellite dish or - antenna or directly from cable. The frontend down-converts and - demodulates this signal into an MPEG transport stream (TS). In case - of a satellite frontend, this includes a facility for satellite - equipment control (SEC), which allows control of LNB polarization, - multi feed switches or dish rotors. - -- Conditional Access (CA) hardware like CI adapters and smartcard slots - - The complete TS is passed through the CA hardware. Programs to which - the user has access (controlled by the smart card) are decoded in - real time and re-inserted into the TS. - -- Demultiplexer which filters the incoming DVB stream - - The demultiplexer splits the TS into its components like audio and - video streams. Besides usually several of such audio and video - streams it also contains data streams with information about the - programs offered in this or other streams of the same provider. - -- MPEG2 audio and video decoder - - The main targets of the demultiplexer are the MPEG2 audio and video - decoders. After decoding they pass on the uncompressed audio and - video to the computer screen or (through a PAL/NTSC encoder) to a TV - set. - -:ref:`stb_components` shows a crude schematic of the control and data -flow between those components. - -On a DVB PCI card not all of these have to be present since some -functionality can be provided by the main CPU of the PC (e.g. MPEG -picture and sound decoding) or is not needed (e.g. for data-only uses -like “internet over satellite”). Also not every card or STB provides -conditional access hardware. - - -.. _dvb_devices: - -Linux DVB Devices -================= - -The Linux DVB API lets you control these hardware components through -currently six Unix-style character devices for video, audio, frontend, -demux, CA and IP-over-DVB networking. The video and audio devices -control the MPEG2 decoder hardware, the frontend device the tuner and -the DVB demodulator. The demux device gives you control over the PES and -section filters of the hardware. If the hardware does not support -filtering these filters can be implemented in software. Finally, the CA -device controls all the conditional access capabilities of the 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. - -All devices can be found in the ``/dev`` tree under ``/dev/dvb``. The -individual devices are called: - -- ``/dev/dvb/adapterN/audioM``, - -- ``/dev/dvb/adapterN/videoM``, - -- ``/dev/dvb/adapterN/frontendM``, - -- ``/dev/dvb/adapterN/netM``, - -- ``/dev/dvb/adapterN/demuxM``, - -- ``/dev/dvb/adapterN/dvrM``, - -- ``/dev/dvb/adapterN/caM``, - -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 “ ``/dev/dvb/adapterN/``\ ” in the further -discussion of these devices. - -More details about the data structures and function calls of all the -devices are described in the following chapters. - - -.. _include_files: - -API include files -================= - -For each of the DVB devices a corresponding include file exists. The DVB -API include files should be included in application sources with a -partial path like: - - -.. code-block:: c - - #include - - #include - - #include - - #include - - -To enable applications to support different API version, an additional -include file ``linux/dvb/version.h`` exists, which defines the constant -``DVB_API_VERSION``. This document describes ``DVB_API_VERSION 5.10``. diff --git a/Documentation/linux_tv/media/dvb/intro_files/dvbstb.pdf b/Documentation/linux_tv/media/dvb/intro_files/dvbstb.pdf deleted file mode 100644 index 0fa75d90c3eb..000000000000 Binary files a/Documentation/linux_tv/media/dvb/intro_files/dvbstb.pdf and /dev/null differ diff --git a/Documentation/linux_tv/media/dvb/intro_files/dvbstb.png b/Documentation/linux_tv/media/dvb/intro_files/dvbstb.png deleted file mode 100644 index 9b8f372e7afd..000000000000 Binary files a/Documentation/linux_tv/media/dvb/intro_files/dvbstb.png and /dev/null differ diff --git a/Documentation/linux_tv/media/dvb/legacy_dvb_apis.rst b/Documentation/linux_tv/media/dvb/legacy_dvb_apis.rst deleted file mode 100644 index 2957f5a988b0..000000000000 --- a/Documentation/linux_tv/media/dvb/legacy_dvb_apis.rst +++ /dev/null @@ -1,20 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _legacy_dvb_apis: - -******************* -DVB Deprecated APIs -******************* - -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 - - -.. toctree:: - :maxdepth: 1 - - video - audio diff --git a/Documentation/linux_tv/media/dvb/net-add-if.rst b/Documentation/linux_tv/media/dvb/net-add-if.rst deleted file mode 100644 index 2b990d0e0fe1..000000000000 --- a/Documentation/linux_tv/media/dvb/net-add-if.rst +++ /dev/null @@ -1,91 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _NET_ADD_IF: - -**************** -ioctl NET_ADD_IF -**************** - -Name -==== - -NET_ADD_IF - Creates a new network interface for a given Packet ID. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct dvb_net_if *net_if ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_TONE - -``net_if`` - pointer to struct :ref:`dvb_net_if ` - - -Description -=========== - -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. - -The struct :ref:`dvb_net_if `::ifnum field will be -filled with the number of the created interface. - - -.. _dvb-net-if-t: - -struct dvb_net_if description -============================= - -.. _dvb-net-if: - -.. flat-table:: struct dvb_net_if - :header-rows: 1 - :stub-columns: 0 - - - - .. row 1 - - - ID - - - Description - - - .. row 2 - - - pid - - - Packet ID (PID) of the MPEG-TS that contains data - - - .. row 3 - - - ifnum - - - number of the DVB interface. - - - .. row 4 - - - feedtype - - - Encapsulation type of the feed. It can be: - ``DVB_NET_FEEDTYPE_MPE`` for MPE encoding or - ``DVB_NET_FEEDTYPE_ULE`` for ULE encoding. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/net-get-if.rst b/Documentation/linux_tv/media/dvb/net-get-if.rst deleted file mode 100644 index 92b884143ccd..000000000000 --- a/Documentation/linux_tv/media/dvb/net-get-if.rst +++ /dev/null @@ -1,50 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _NET_GET_IF: - -**************** -ioctl NET_GET_IF -**************** - -Name -==== - -NET_GET_IF - Read the configuration data of an interface created via - :ref:`NET_ADD_IF `. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct dvb_net_if *net_if ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_TONE - -``net_if`` - pointer to struct :ref:`dvb_net_if ` - - -Description -=========== - -The NET_GET_IF ioctl uses the interface number given by the struct -:ref:`dvb_net_if `::ifnum field and fills the content of -struct :ref:`dvb_net_if ` with the packet ID and -encapsulation type used on such interface. If the interface was not -created yet with :ref:`NET_ADD_IF `, it will return -1 and fill -the ``errno`` with ``EINVAL`` error code. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/net-remove-if.rst b/Documentation/linux_tv/media/dvb/net-remove-if.rst deleted file mode 100644 index d374c1d63d06..000000000000 --- a/Documentation/linux_tv/media/dvb/net-remove-if.rst +++ /dev/null @@ -1,46 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _NET_REMOVE_IF: - -******************* -ioctl NET_REMOVE_IF -******************* - -Name -==== - -NET_REMOVE_IF - Removes a network interface. - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, int ifnum ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - FE_SET_TONE - -``net_if`` - number of the interface to be removed - - -Description -=========== - -The NET_REMOVE_IF ioctl deletes an interface previously created via -:ref:`NET_ADD_IF `. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/net.rst b/Documentation/linux_tv/media/dvb/net.rst deleted file mode 100644 index eca42dd53261..000000000000 --- a/Documentation/linux_tv/media/dvb/net.rst +++ /dev/null @@ -1,40 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _net: - -############### -DVB Network API -############### -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. - -Currently, two encapsulations are supported: - -- `Multi Protocol Encapsulation (MPE) `__ - -- `Ultra Lightweight Encapsulation (ULE) `__ - -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 -``/dev/dvb/adapter?/net?`` device node. The data will be available via -virtual ``dvb?_?`` network interfaces, and will be controlled/routed via -the standard ip tools (like ip, route, netstat, ifconfig, etc). - -Data types and and ioctl definitions are defined via ``linux/dvb/net.h`` -header. - - -.. _net_fcalls: - -###################### -DVB net Function Calls -###################### - -.. toctree:: - :maxdepth: 1 - - net-add-if - net-remove-if - net-get-if diff --git a/Documentation/linux_tv/media/dvb/net_h.rst b/Documentation/linux_tv/media/dvb/net_h.rst deleted file mode 100644 index 7bcf5ba9d1eb..000000000000 --- a/Documentation/linux_tv/media/dvb/net_h.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _net_h: - -*********************** -DVB Network Header File -*********************** - -.. kernel-include:: $BUILDDIR/net.h.rst diff --git a/Documentation/linux_tv/media/dvb/query-dvb-frontend-info.rst b/Documentation/linux_tv/media/dvb/query-dvb-frontend-info.rst deleted file mode 100644 index 81cd9b92a36c..000000000000 --- a/Documentation/linux_tv/media/dvb/query-dvb-frontend-info.rst +++ /dev/null @@ -1,13 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _query-dvb-frontend-info: - -***************************** -Querying frontend information -***************************** - -Usually, the first thing to do when the frontend is opened is to check -the frontend capabilities. This is done using -:ref:`FE_GET_INFO`. 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. diff --git a/Documentation/linux_tv/media/dvb/video-clear-buffer.rst b/Documentation/linux_tv/media/dvb/video-clear-buffer.rst deleted file mode 100644 index 7c85aa06f013..000000000000 --- a/Documentation/linux_tv/media/dvb/video-clear-buffer.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_CLEAR_BUFFER: - -================== -VIDEO_CLEAR_BUFFER -================== - -Name ----- - -VIDEO_CLEAR_BUFFER - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_CLEAR_BUFFER) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_CLEAR_BUFFER for this command. - - -Description ------------ - -This ioctl call clears all video buffers in the driver and in the -decoder hardware. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-command.rst b/Documentation/linux_tv/media/dvb/video-command.rst deleted file mode 100644 index b1634f722cbd..000000000000 --- a/Documentation/linux_tv/media/dvb/video-command.rst +++ /dev/null @@ -1,66 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_COMMAND: - -============= -VIDEO_COMMAND -============= - -Name ----- - -VIDEO_COMMAND - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_COMMAND, struct video_command *cmd) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_COMMAND for this command. - - - .. row 3 - - - struct video_command \*cmd - - - Commands the decoder. - - -Description ------------ - -This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders -this ioctl has been replaced by the -:ref:`VIDIOC_DECODER_CMD` ioctl. - -This ioctl commands the decoder. The ``video_command`` struct is a -subset of the ``v4l2_decoder_cmd`` struct, so refer to the -:ref:`VIDIOC_DECODER_CMD` documentation for -more information. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-continue.rst b/Documentation/linux_tv/media/dvb/video-continue.rst deleted file mode 100644 index c5acc094986f..000000000000 --- a/Documentation/linux_tv/media/dvb/video-continue.rst +++ /dev/null @@ -1,57 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_CONTINUE: - -============== -VIDEO_CONTINUE -============== - -Name ----- - -VIDEO_CONTINUE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_CONTINUE) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_CONTINUE for this command. - - -Description ------------ - -This ioctl is for DVB devices only. To control a V4L2 decoder use the -V4L2 :ref:`VIDIOC_DECODER_CMD` instead. - -This ioctl call restarts decoding and playing processes of the video -stream which was played before a call to VIDEO_FREEZE was made. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-fast-forward.rst b/Documentation/linux_tv/media/dvb/video-fast-forward.rst deleted file mode 100644 index db338e9f5379..000000000000 --- a/Documentation/linux_tv/media/dvb/video-fast-forward.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_FAST_FORWARD: - -================== -VIDEO_FAST_FORWARD -================== - -Name ----- - -VIDEO_FAST_FORWARD - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_FAST_FORWARD, int nFrames) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_FAST_FORWARD for this command. - - - .. row 3 - - - int nFrames - - - The number of frames to skip. - - -Description ------------ - -This ioctl call asks the Video Device to skip decoding of N number of -I-frames. This call can only be used if VIDEO_SOURCE_MEMORY is -selected. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EPERM`` - - - Mode VIDEO_SOURCE_MEMORY not selected. diff --git a/Documentation/linux_tv/media/dvb/video-fclose.rst b/Documentation/linux_tv/media/dvb/video-fclose.rst deleted file mode 100644 index ebeaade0c351..000000000000 --- a/Documentation/linux_tv/media/dvb/video-fclose.rst +++ /dev/null @@ -1,54 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _video_fclose: - -================= -dvb video close() -================= - -Name ----- - -dvb video close() - - -Synopsis --------- - -.. cpp:function:: int close(int fd) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - -Description ------------ - -This system call closes a previously opened video device. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/video-fopen.rst b/Documentation/linux_tv/media/dvb/video-fopen.rst deleted file mode 100644 index 9e5471557b83..000000000000 --- a/Documentation/linux_tv/media/dvb/video-fopen.rst +++ /dev/null @@ -1,112 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _video_fopen: - -================ -dvb video open() -================ - -Name ----- - -dvb video open() - - -Synopsis --------- - -.. cpp:function:: int open(const char *deviceName, int flags) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - const char \*deviceName - - - Name of specific video device. - - - .. row 2 - - - int flags - - - A bit-wise OR of the following flags: - - - .. row 3 - - - - - O_RDONLY read-only access - - - .. row 4 - - - - - O_RDWR read/write access - - - .. row 5 - - - - - O_NONBLOCK open in non-blocking mode - - - .. row 6 - - - - - (blocking mode is the default) - - -Description ------------ - -This system call opens a named video device (e.g. -/dev/dvb/adapter0/video0) for subsequent use. - -When an open() call has succeeded, the device will be ready for use. The -significance of blocking or non-blocking mode is described in the -documentation for functions where there is a difference. It does not -affect the semantics of the open() call itself. A device opened in -blocking mode can later be put into non-blocking mode (and vice versa) -using the F_SETFL command of the fcntl system call. This is a standard -system call, documented in the Linux manual page for fcntl. Only one -user can open the Video Device in O_RDWR mode. All other attempts to -open the device in this mode will fail, and an error-code will be -returned. If the Video Device is opened in O_RDONLY mode, the only -ioctl call that can be used is VIDEO_GET_STATUS. All other call will -return an error code. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``ENODEV`` - - - Device driver not loaded/available. - - - .. row 2 - - - ``EINTERNAL`` - - - Internal error. - - - .. row 3 - - - ``EBUSY`` - - - Device or resource busy. - - - .. row 4 - - - ``EINVAL`` - - - Invalid argument. diff --git a/Documentation/linux_tv/media/dvb/video-freeze.rst b/Documentation/linux_tv/media/dvb/video-freeze.rst deleted file mode 100644 index d3d0dc31281a..000000000000 --- a/Documentation/linux_tv/media/dvb/video-freeze.rst +++ /dev/null @@ -1,61 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_FREEZE: - -============ -VIDEO_FREEZE -============ - -Name ----- - -VIDEO_FREEZE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_FREEZE) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_FREEZE for this command. - - -Description ------------ - -This ioctl is for DVB devices only. To control a V4L2 decoder use the -V4L2 :ref:`VIDIOC_DECODER_CMD` instead. - -This ioctl call suspends the live video stream being played. Decoding -and playing are frozen. It is then possible to restart the decoding and -playing process of the video stream using the VIDEO_CONTINUE command. -If VIDEO_SOURCE_MEMORY is selected in the ioctl call -VIDEO_SELECT_SOURCE, the DVB subsystem will not decode any more data -until the ioctl call VIDEO_CONTINUE or VIDEO_PLAY is performed. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-fwrite.rst b/Documentation/linux_tv/media/dvb/video-fwrite.rst deleted file mode 100644 index 045038f4181e..000000000000 --- a/Documentation/linux_tv/media/dvb/video-fwrite.rst +++ /dev/null @@ -1,82 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _video_fwrite: - -================= -dvb video write() -================= - -Name ----- - -dvb video write() - - -Synopsis --------- - -.. cpp:function:: size_t write(int fd, const void *buf, size_t count) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - void \*buf - - - Pointer to the buffer containing the PES data. - - - .. row 3 - - - size_t count - - - Size of buf. - - -Description ------------ - -This system call can only be used if VIDEO_SOURCE_MEMORY is selected -in the ioctl call VIDEO_SELECT_SOURCE. The data provided shall be in -PES format, unless the capability allows other formats. If O_NONBLOCK -is not specified the function will block until buffer space is -available. The amount of data to be transferred is implied by count. - - -Return Value ------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EPERM`` - - - Mode VIDEO_SOURCE_MEMORY not selected. - - - .. row 2 - - - ``ENOMEM`` - - - Attempted to write more data than the internal buffer can hold. - - - .. row 3 - - - ``EBADF`` - - - fd is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/dvb/video-get-capabilities.rst b/Documentation/linux_tv/media/dvb/video-get-capabilities.rst deleted file mode 100644 index 94cbbba478a8..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-capabilities.rst +++ /dev/null @@ -1,61 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_CAPABILITIES: - -====================== -VIDEO_GET_CAPABILITIES -====================== - -Name ----- - -VIDEO_GET_CAPABILITIES - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_GET_CAPABILITIES, unsigned int *cap) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_CAPABILITIES for this command. - - - .. row 3 - - - unsigned int \*cap - - - Pointer to a location where to store the capability information. - - -Description ------------ - -This ioctl call asks the video device about its decoding capabilities. -On success it returns and integer which has bits set according to the -defines in section ??. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-get-event.rst b/Documentation/linux_tv/media/dvb/video-get-event.rst deleted file mode 100644 index a1484a226518..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-event.rst +++ /dev/null @@ -1,88 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_EVENT: - -=============== -VIDEO_GET_EVENT -=============== - -Name ----- - -VIDEO_GET_EVENT - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_GET_EVENT, struct video_event *ev) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_EVENT for this command. - - - .. row 3 - - - struct video_event \*ev - - - Points to the location where the event, if any, is to be stored. - - -Description ------------ - -This ioctl is for DVB devices only. To get events from a V4L2 decoder -use the V4L2 :ref:`VIDIOC_DQEVENT` ioctl instead. - -This ioctl call returns an event of type video_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. 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. Read-only permissions are sufficient -for this ioctl call. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EWOULDBLOCK`` - - - There is no event pending, and the device is in non-blocking mode. - - - .. row 2 - - - ``EOVERFLOW`` - - - Overflow in event queue - one or more events were lost. diff --git a/Documentation/linux_tv/media/dvb/video-get-frame-count.rst b/Documentation/linux_tv/media/dvb/video-get-frame-count.rst deleted file mode 100644 index 4ff100c2ee95..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-frame-count.rst +++ /dev/null @@ -1,65 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_FRAME_COUNT: - -===================== -VIDEO_GET_FRAME_COUNT -===================== - -Name ----- - -VIDEO_GET_FRAME_COUNT - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_FRAME_COUNT, __u64 *pts) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_FRAME_COUNT for this command. - - - .. row 3 - - - __u64 \*pts - - - Returns the number of frames displayed since the decoder was - started. - - -Description ------------ - -This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders -this ioctl has been replaced by the ``V4L2_CID_MPEG_VIDEO_DEC_FRAME`` -control. - -This ioctl call asks the Video Device to return the number of displayed -frames since the decoder was started. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-get-frame-rate.rst b/Documentation/linux_tv/media/dvb/video-get-frame-rate.rst deleted file mode 100644 index 131def962305..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-frame-rate.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_FRAME_RATE: - -==================== -VIDEO_GET_FRAME_RATE -==================== - -Name ----- - -VIDEO_GET_FRAME_RATE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_FRAME_RATE, unsigned int *rate) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_FRAME_RATE for this command. - - - .. row 3 - - - unsigned int \*rate - - - Returns the framerate in number of frames per 1000 seconds. - - -Description ------------ - -This ioctl call asks the Video Device to return the current framerate. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-get-navi.rst b/Documentation/linux_tv/media/dvb/video-get-navi.rst deleted file mode 100644 index 6c3034fe5fa2..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-navi.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_NAVI: - -============== -VIDEO_GET_NAVI -============== - -Name ----- - -VIDEO_GET_NAVI - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_GET_NAVI , video_navi_pack_t *navipack) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_NAVI for this command. - - - .. row 3 - - - video_navi_pack_t \*navipack - - - PCI or DSI pack (private stream 2) according to section ??. - - -Description ------------ - -This ioctl returns navigational information from the DVD stream. This is -especially needed if an encoded stream has to be decoded by the -hardware. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EFAULT`` - - - driver is not able to return navigational information diff --git a/Documentation/linux_tv/media/dvb/video-get-pts.rst b/Documentation/linux_tv/media/dvb/video-get-pts.rst deleted file mode 100644 index 082612243bbb..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-pts.rst +++ /dev/null @@ -1,69 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_PTS: - -============= -VIDEO_GET_PTS -============= - -Name ----- - -VIDEO_GET_PTS - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_PTS, __u64 *pts) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_PTS for this command. - - - .. row 3 - - - __u64 \*pts - - - Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 / - ISO/IEC 13818-1. - - The PTS should belong to the currently played frame if possible, - but may also be a value close to it like the PTS of the last - decoded frame or the last PTS extracted by the PES parser. - - -Description ------------ - -This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders -this ioctl has been replaced by the ``V4L2_CID_MPEG_VIDEO_DEC_PTS`` -control. - -This ioctl call asks the Video Device to return the current PTS -timestamp. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-get-size.rst b/Documentation/linux_tv/media/dvb/video-get-size.rst deleted file mode 100644 index c75e3c47c471..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-size.rst +++ /dev/null @@ -1,59 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_SIZE: - -============== -VIDEO_GET_SIZE -============== - -Name ----- - -VIDEO_GET_SIZE - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_SIZE, video_size_t *size) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_SIZE for this command. - - - .. row 3 - - - video_size_t \*size - - - Returns the size and aspect ratio. - - -Description ------------ - -This ioctl returns the size and aspect ratio. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-get-status.rst b/Documentation/linux_tv/media/dvb/video-get-status.rst deleted file mode 100644 index ab9c2236df7e..000000000000 --- a/Documentation/linux_tv/media/dvb/video-get-status.rst +++ /dev/null @@ -1,60 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_GET_STATUS: - -================ -VIDEO_GET_STATUS -================ - -Name ----- - -VIDEO_GET_STATUS - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_GET_STATUS, struct video_status *status) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_GET_STATUS for this command. - - - .. row 3 - - - struct video_status \*status - - - Returns the current status of the Video Device. - - -Description ------------ - -This ioctl call asks the Video Device to return the current status of -the device. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-play.rst b/Documentation/linux_tv/media/dvb/video-play.rst deleted file mode 100644 index 943c4b755372..000000000000 --- a/Documentation/linux_tv/media/dvb/video-play.rst +++ /dev/null @@ -1,57 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_PLAY: - -========== -VIDEO_PLAY -========== - -Name ----- - -VIDEO_PLAY - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_PLAY) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_PLAY for this command. - - -Description ------------ - -This ioctl is for DVB devices only. To control a V4L2 decoder use the -V4L2 :ref:`VIDIOC_DECODER_CMD` instead. - -This ioctl call asks the Video Device to start playing a video stream -from the selected source. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-select-source.rst b/Documentation/linux_tv/media/dvb/video-select-source.rst deleted file mode 100644 index 0ee0d03dbeb2..000000000000 --- a/Documentation/linux_tv/media/dvb/video-select-source.rst +++ /dev/null @@ -1,65 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SELECT_SOURCE: - -=================== -VIDEO_SELECT_SOURCE -=================== - -Name ----- - -VIDEO_SELECT_SOURCE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SELECT_SOURCE, video_stream_source_t source) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SELECT_SOURCE for this command. - - - .. row 3 - - - video_stream_source_t source - - - Indicates which source shall be used for the Video stream. - - -Description ------------ - -This ioctl is for DVB devices only. This ioctl was also supported by the -V4L2 ivtv driver, but that has been replaced by the ivtv-specific -``IVTV_IOC_PASSTHROUGH_MODE`` ioctl. - -This ioctl call informs the video device which source shall be used for -the input data. The possible sources are demux or memory. If memory is -selected, the data is fed to the video device through the write command. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-set-attributes.rst b/Documentation/linux_tv/media/dvb/video-set-attributes.rst deleted file mode 100644 index 326c5c876e80..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-attributes.rst +++ /dev/null @@ -1,75 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_ATTRIBUTES: - -==================== -VIDEO_SET_ATTRIBUTES -==================== - -Name ----- - -VIDEO_SET_ATTRIBUTES - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_ATTRIBUTE ,video_attributes_t vattr) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_ATTRIBUTE for this command. - - - .. row 3 - - - video_attributes_t vattr - - - video attributes according to section ??. - - -Description ------------ - -This ioctl is intended for DVD playback and allows you to set certain -information about the stream. Some hardware may not need this -information, but the call also tells the hardware to prepare for DVD -playback. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - input is not a valid attribute setting. diff --git a/Documentation/linux_tv/media/dvb/video-set-blank.rst b/Documentation/linux_tv/media/dvb/video-set-blank.rst deleted file mode 100644 index 142ea8817380..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-blank.rst +++ /dev/null @@ -1,64 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_BLANK: - -=============== -VIDEO_SET_BLANK -=============== - -Name ----- - -VIDEO_SET_BLANK - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_BLANK, boolean mode) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_BLANK for this command. - - - .. row 3 - - - boolean mode - - - TRUE: Blank screen when stop. - - - .. row 4 - - - - - FALSE: Show last decoded frame. - - -Description ------------ - -This ioctl call asks the Video Device to blank out the picture. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-set-display-format.rst b/Documentation/linux_tv/media/dvb/video-set-display-format.rst deleted file mode 100644 index 2061ab064977..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-display-format.rst +++ /dev/null @@ -1,60 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_DISPLAY_FORMAT: - -======================== -VIDEO_SET_DISPLAY_FORMAT -======================== - -Name ----- - -VIDEO_SET_DISPLAY_FORMAT - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_DISPLAY_FORMAT, video_display_format_t format) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_DISPLAY_FORMAT for this command. - - - .. row 3 - - - video_display_format_t format - - - Selects the video format to be used. - - -Description ------------ - -This ioctl call asks the Video Device to select the video format to be -applied by the MPEG chip on the video. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-set-format.rst b/Documentation/linux_tv/media/dvb/video-set-format.rst deleted file mode 100644 index 53d66ec462ca..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-format.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_FORMAT: - -================ -VIDEO_SET_FORMAT -================ - -Name ----- - -VIDEO_SET_FORMAT - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_FORMAT, video_format_t format) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_FORMAT for this command. - - - .. row 3 - - - video_format_t format - - - video format of TV as defined in section ??. - - -Description ------------ - -This ioctl sets the screen format (aspect ratio) of the connected output -device (TV) so that the output of the decoder can be adjusted -accordingly. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - format is not a valid video format. diff --git a/Documentation/linux_tv/media/dvb/video-set-highlight.rst b/Documentation/linux_tv/media/dvb/video-set-highlight.rst deleted file mode 100644 index 374f5d895b4d..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-highlight.rst +++ /dev/null @@ -1,60 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_HIGHLIGHT: - -=================== -VIDEO_SET_HIGHLIGHT -=================== - -Name ----- - -VIDEO_SET_HIGHLIGHT - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_HIGHLIGHT ,video_highlight_t *vhilite) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_HIGHLIGHT for this command. - - - .. row 3 - - - video_highlight_t \*vhilite - - - SPU Highlight information according to section ??. - - -Description ------------ - -This ioctl sets the SPU highlight information for the menu access of a -DVD. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-set-id.rst b/Documentation/linux_tv/media/dvb/video-set-id.rst deleted file mode 100644 index 9c002d5399ad..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-id.rst +++ /dev/null @@ -1,73 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_ID: - -============ -VIDEO_SET_ID -============ - -Name ----- - -VIDEO_SET_ID - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_SET_ID, int id) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_ID for this command. - - - .. row 3 - - - int id - - - video sub-stream id - - -Description ------------ - -This ioctl selects which sub-stream is to be decoded if a program or -system stream is sent to the video device. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - Invalid sub-stream id. diff --git a/Documentation/linux_tv/media/dvb/video-set-spu-palette.rst b/Documentation/linux_tv/media/dvb/video-set-spu-palette.rst deleted file mode 100644 index 4b80b6f56219..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-spu-palette.rst +++ /dev/null @@ -1,72 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_SPU_PALETTE: - -===================== -VIDEO_SET_SPU_PALETTE -===================== - -Name ----- - -VIDEO_SET_SPU_PALETTE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_SPU_PALETTE, video_spu_palette_t *palette ) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_SPU_PALETTE for this command. - - - .. row 3 - - - video_spu_palette_t \*palette - - - SPU palette according to section ??. - - -Description ------------ - -This ioctl sets the SPU color palette. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - input is not a valid palette or driver doesn’t handle SPU. diff --git a/Documentation/linux_tv/media/dvb/video-set-spu.rst b/Documentation/linux_tv/media/dvb/video-set-spu.rst deleted file mode 100644 index a6f6924f10c4..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-spu.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_SPU: - -============= -VIDEO_SET_SPU -============= - -Name ----- - -VIDEO_SET_SPU - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_SPU , video_spu_t *spu) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_SPU for this command. - - - .. row 3 - - - video_spu_t \*spu - - - SPU decoding (de)activation and subid setting according to section - ??. - - -Description ------------ - -This ioctl activates or deactivates SPU decoding in a DVD input stream. -It can only be used, if the driver is able to handle a DVD stream. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - input is not a valid spu setting or driver cannot handle SPU. diff --git a/Documentation/linux_tv/media/dvb/video-set-streamtype.rst b/Documentation/linux_tv/media/dvb/video-set-streamtype.rst deleted file mode 100644 index 75b2e7a6e829..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-streamtype.rst +++ /dev/null @@ -1,61 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_STREAMTYPE: - -==================== -VIDEO_SET_STREAMTYPE -==================== - -Name ----- - -VIDEO_SET_STREAMTYPE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_STREAMTYPE, int type) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_STREAMTYPE for this command. - - - .. row 3 - - - int type - - - stream type - - -Description ------------ - -This ioctl tells the driver which kind of stream to expect being written -to it. If this call is not used the default of video PES is used. Some -drivers might not support this call and always expect PES. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-set-system.rst b/Documentation/linux_tv/media/dvb/video-set-system.rst deleted file mode 100644 index 9ae0df1f5813..000000000000 --- a/Documentation/linux_tv/media/dvb/video-set-system.rst +++ /dev/null @@ -1,75 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SET_SYSTEM: - -================ -VIDEO_SET_SYSTEM -================ - -Name ----- - -VIDEO_SET_SYSTEM - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_SYSTEM , video_system_t system) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SET_FORMAT for this command. - - - .. row 3 - - - video_system_t system - - - video system of TV output. - - -Description ------------ - -This ioctl sets the television output format. The format (see section -??) may vary from the color format of the displayed MPEG stream. If the -hardware is not able to display the requested format the call will -return an error. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EINVAL`` - - - system is not a valid or supported video system. diff --git a/Documentation/linux_tv/media/dvb/video-slowmotion.rst b/Documentation/linux_tv/media/dvb/video-slowmotion.rst deleted file mode 100644 index 905712844f6a..000000000000 --- a/Documentation/linux_tv/media/dvb/video-slowmotion.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_SLOWMOTION: - -================ -VIDEO_SLOWMOTION -================ - -Name ----- - -VIDEO_SLOWMOTION - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_SLOWMOTION, int nFrames) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_SLOWMOTION for this command. - - - .. row 3 - - - int nFrames - - - The number of times to repeat each frame. - - -Description ------------ - -This ioctl call asks the video device to repeat decoding frames N number -of times. This call can only be used if VIDEO_SOURCE_MEMORY is -selected. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``EPERM`` - - - Mode VIDEO_SOURCE_MEMORY not selected. diff --git a/Documentation/linux_tv/media/dvb/video-stillpicture.rst b/Documentation/linux_tv/media/dvb/video-stillpicture.rst deleted file mode 100644 index ed3a2f53b998..000000000000 --- a/Documentation/linux_tv/media/dvb/video-stillpicture.rst +++ /dev/null @@ -1,61 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_STILLPICTURE: - -================== -VIDEO_STILLPICTURE -================== - -Name ----- - -VIDEO_STILLPICTURE - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_STILLPICTURE, struct video_still_picture *sp) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_STILLPICTURE for this command. - - - .. row 3 - - - struct video_still_picture \*sp - - - Pointer to a location where an I-frame and size is stored. - - -Description ------------ - -This ioctl call asks the Video Device to display a still picture -(I-frame). The input data shall contain an I-frame. If the pointer is -NULL, then the current displayed still picture is blanked. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-stop.rst b/Documentation/linux_tv/media/dvb/video-stop.rst deleted file mode 100644 index ad8d59e06004..000000000000 --- a/Documentation/linux_tv/media/dvb/video-stop.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_STOP: - -========== -VIDEO_STOP -========== - -Name ----- - -VIDEO_STOP - - -Synopsis --------- - -.. cpp:function:: int ioctl(fd, int request = VIDEO_STOP, boolean mode) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_STOP for this command. - - - .. row 3 - - - Boolean mode - - - Indicates how the screen shall be handled. - - - .. row 4 - - - - - TRUE: Blank screen when stop. - - - .. row 5 - - - - - FALSE: Show last decoded frame. - - -Description ------------ - -This ioctl is for DVB devices only. To control a V4L2 decoder use the -V4L2 :ref:`VIDIOC_DECODER_CMD` instead. - -This ioctl call asks the Video Device to stop playing the current -stream. Depending on the input parameter, the screen can be blanked out -or displaying the last decoded frame. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video-try-command.rst b/Documentation/linux_tv/media/dvb/video-try-command.rst deleted file mode 100644 index df96c2d7fc6b..000000000000 --- a/Documentation/linux_tv/media/dvb/video-try-command.rst +++ /dev/null @@ -1,66 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _VIDEO_TRY_COMMAND: - -================= -VIDEO_TRY_COMMAND -================= - -Name ----- - -VIDEO_TRY_COMMAND - - -Synopsis --------- - -.. cpp:function:: int ioctl(int fd, int request = VIDEO_TRY_COMMAND, struct video_command *cmd) - - -Arguments ---------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - int fd - - - File descriptor returned by a previous call to open(). - - - .. row 2 - - - int request - - - Equals VIDEO_TRY_COMMAND for this command. - - - .. row 3 - - - struct video_command \*cmd - - - Try a decoder command. - - -Description ------------ - -This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders -this ioctl has been replaced by the -:ref:`VIDIOC_TRY_DECODER_CMD ` ioctl. - -This ioctl tries a decoder command. The ``video_command`` struct is a -subset of the ``v4l2_decoder_cmd`` struct, so refer to the -:ref:`VIDIOC_TRY_DECODER_CMD ` documentation -for more information. - - -Return Value ------------- - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/dvb/video.rst b/Documentation/linux_tv/media/dvb/video.rst deleted file mode 100644 index 60d43fb7ce22..000000000000 --- a/Documentation/linux_tv/media/dvb/video.rst +++ /dev/null @@ -1,35 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _dvb_video: - -################ -DVB Video Device -################ -The DVB video device controls the MPEG2 video decoder of the DVB -hardware. It can be accessed through **/dev/dvb/adapter0/video0**. Data -types and and ioctl definitions can be accessed by including -**linux/dvb/video.h** in your application. - -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. -**/dev/video**, which allows scaling and defining output windows. - -Some DVB cards don’t have their own MPEG decoder, which results in the -omission of the audio and video device as well as the video4linux -device. - -The ioctls that deal with SPUs (sub picture units) and navigation -packets are only supported on some MPEG decoders made for DVD playback. - -These ioctls were also used by V4L2 to control MPEG decoders implemented -in V4L2. The use of these ioctls for that purpose has been made obsolete -and proper V4L2 ioctls or controls have been created to replace that -functionality. - - -.. toctree:: - :maxdepth: 1 - - video_types - video_function_calls diff --git a/Documentation/linux_tv/media/dvb/video_function_calls.rst b/Documentation/linux_tv/media/dvb/video_function_calls.rst deleted file mode 100644 index 68588ac7fecb..000000000000 --- a/Documentation/linux_tv/media/dvb/video_function_calls.rst +++ /dev/null @@ -1,43 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _video_function_calls: - -******************** -Video Function Calls -******************** - -.. toctree:: - :maxdepth: 1 - - video-fopen - video-fclose - video-fwrite - video-stop - video-play - video-freeze - video-continue - video-select-source - video-set-blank - video-get-status - video-get-frame-count - video-get-pts - video-get-frame-rate - video-get-event - video-command - video-try-command - video-get-size - video-set-display-format - video-stillpicture - video-fast-forward - video-slowmotion - video-get-capabilities - video-set-id - video-clear-buffer - video-set-streamtype - video-set-format - video-set-system - video-set-highlight - video-set-spu - video-set-spu-palette - video-get-navi - video-set-attributes diff --git a/Documentation/linux_tv/media/dvb/video_h.rst b/Documentation/linux_tv/media/dvb/video_h.rst deleted file mode 100644 index 3f39b0c4879c..000000000000 --- a/Documentation/linux_tv/media/dvb/video_h.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _video_h: - -********************* -DVB Video Header File -********************* - -.. kernel-include:: $BUILDDIR/video.h.rst diff --git a/Documentation/linux_tv/media/dvb/video_types.rst b/Documentation/linux_tv/media/dvb/video_types.rst deleted file mode 100644 index 671f365ceeb4..000000000000 --- a/Documentation/linux_tv/media/dvb/video_types.rst +++ /dev/null @@ -1,379 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _video_types: - -**************** -Video Data Types -**************** - - -.. _video-format-t: - -video_format_t -============== - -The ``video_format_t`` data type defined by - - -.. code-block:: c - - typedef enum { - VIDEO_FORMAT_4_3, /* Select 4:3 format */ - VIDEO_FORMAT_16_9, /* Select 16:9 format. */ - VIDEO_FORMAT_221_1 /* 2.21:1 */ - } video_format_t; - -is used in the VIDEO_SET_FORMAT function (??) to tell the driver which -aspect ratio the output hardware (e.g. TV) has. It is also used in the -data structures video_status (??) returned by VIDEO_GET_STATUS (??) -and video_event (??) returned by VIDEO_GET_EVENT (??) which report -about the display format of the current video stream. - - -.. _video-displayformat-t: - -video_displayformat_t -===================== - -In case the display format of the video stream and of the display -hardware differ the application has to specify how to handle the -cropping of the picture. This can be done using the -VIDEO_SET_DISPLAY_FORMAT call (??) which accepts - - -.. code-block:: c - - typedef enum { - VIDEO_PAN_SCAN, /* use pan and scan format */ - VIDEO_LETTER_BOX, /* use letterbox format */ - VIDEO_CENTER_CUT_OUT /* use center cut out format */ - } video_displayformat_t; - -as argument. - - -.. _video-stream-source-t: - -video_stream_source_t -===================== - -The video stream source is set through the VIDEO_SELECT_SOURCE call -and can take the following values, depending on whether we are replaying -from an internal (demuxer) or external (user write) source. - - -.. code-block:: c - - typedef enum { - VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */ - VIDEO_SOURCE_MEMORY /* If this source is selected, the stream - comes from the user through the write - system call */ - } video_stream_source_t; - -VIDEO_SOURCE_DEMUX selects the demultiplexer (fed either by the -frontend or the DVR device) as the source of the video stream. If -VIDEO_SOURCE_MEMORY is selected the stream comes from the application -through the **write()** system call. - - -.. _video-play-state-t: - -video_play_state_t -================== - -The following values can be returned by the VIDEO_GET_STATUS call -representing the state of video playback. - - -.. code-block:: c - - typedef enum { - VIDEO_STOPPED, /* Video is stopped */ - VIDEO_PLAYING, /* Video is currently playing */ - VIDEO_FREEZED /* Video is freezed */ - } video_play_state_t; - - -.. _video-command: - -struct video_command -==================== - -The structure must be zeroed before use by the application This ensures -it can be extended safely in the future. - - -.. code-block:: c - - struct video_command { - __u32 cmd; - __u32 flags; - union { - struct { - __u64 pts; - } stop; - - struct { - /* 0 or 1000 specifies normal speed, - 1 specifies forward single stepping, - -1 specifies backward single stepping, - >>1: playback at speed/1000 of the normal speed, - <-1: reverse playback at (-speed/1000) of the normal speed. */ - __s32 speed; - __u32 format; - } play; - - struct { - __u32 data[16]; - } raw; - }; - }; - - -.. _video-size-t: - -video_size_t -============ - - -.. code-block:: c - - typedef struct { - int w; - int h; - video_format_t aspect_ratio; - } video_size_t; - - -.. _video-event: - -struct video_event -================== - -The following is the structure of a video event as it is returned by the -VIDEO_GET_EVENT call. - - -.. code-block:: c - - struct video_event { - __s32 type; - #define VIDEO_EVENT_SIZE_CHANGED 1 - #define VIDEO_EVENT_FRAME_RATE_CHANGED 2 - #define VIDEO_EVENT_DECODER_STOPPED 3 - #define VIDEO_EVENT_VSYNC 4 - __kernel_time_t timestamp; - union { - video_size_t size; - unsigned int frame_rate; /* in frames per 1000sec */ - unsigned char vsync_field; /* unknown/odd/even/progressive */ - } u; - }; - - -.. _video-status: - -struct video_status -=================== - -The VIDEO_GET_STATUS call returns the following structure informing -about various states of the playback operation. - - -.. code-block:: c - - struct video_status { - int video_blank; /* blank video on freeze? */ - video_play_state_t play_state; /* current state of playback */ - video_stream_source_t stream_source; /* current source (demux/memory) */ - video_format_t video_format; /* current aspect ratio of stream */ - video_displayformat_t display_format;/* selected cropping mode */ - }; - -If video_blank is set video will be blanked out if the channel is -changed or if playback is stopped. Otherwise, the last picture will be -displayed. play_state indicates if the video is currently frozen, -stopped, or being played back. The stream_source corresponds to the -seleted source for the video stream. It can come either from the -demultiplexer or from memory. The video_format indicates the aspect -ratio (one of 4:3 or 16:9) of the currently played video stream. -Finally, display_format corresponds to the selected cropping mode in -case the source video format is not the same as the format of the output -device. - - -.. _video-still-picture: - -struct video_still_picture -========================== - -An I-frame displayed via the VIDEO_STILLPICTURE call is passed on -within the following structure. - - -.. code-block:: c - - /* pointer to and size of a single iframe in memory */ - struct video_still_picture { - char *iFrame; /* pointer to a single iframe in memory */ - int32_t size; - }; - - -.. _video_caps: - -video capabilities -================== - -A call to VIDEO_GET_CAPABILITIES returns an unsigned integer with the -following bits set according to the hardwares capabilities. - - -.. code-block:: c - - /* bit definitions for capabilities: */ - /* can the hardware decode MPEG1 and/or MPEG2? */ - #define VIDEO_CAP_MPEG1 1 - #define VIDEO_CAP_MPEG2 2 - /* can you send a system and/or program stream to video device? - (you still have to open the video and the audio device but only - send the stream to the video device) */ - #define VIDEO_CAP_SYS 4 - #define VIDEO_CAP_PROG 8 - /* can the driver also handle SPU, NAVI and CSS encoded data? - (CSS API is not present yet) */ - #define VIDEO_CAP_SPU 16 - #define VIDEO_CAP_NAVI 32 - #define VIDEO_CAP_CSS 64 - - -.. _video-system: - -video_system_t -============== - -A call to VIDEO_SET_SYSTEM sets the desired video system for TV -output. The following system types can be set: - - -.. code-block:: c - - typedef enum { - VIDEO_SYSTEM_PAL, - VIDEO_SYSTEM_NTSC, - VIDEO_SYSTEM_PALN, - VIDEO_SYSTEM_PALNc, - VIDEO_SYSTEM_PALM, - VIDEO_SYSTEM_NTSC60, - VIDEO_SYSTEM_PAL60, - VIDEO_SYSTEM_PALM60 - } video_system_t; - - -.. _video-highlight: - -struct video_highlight -====================== - -Calling the ioctl VIDEO_SET_HIGHLIGHTS posts the SPU highlight -information. The call expects the following format for that information: - - -.. code-block:: c - - typedef - struct video_highlight { - boolean active; /* 1=show highlight, 0=hide highlight */ - uint8_t contrast1; /* 7- 4 Pattern pixel contrast */ - /* 3- 0 Background pixel contrast */ - uint8_t contrast2; /* 7- 4 Emphasis pixel-2 contrast */ - /* 3- 0 Emphasis pixel-1 contrast */ - uint8_t color1; /* 7- 4 Pattern pixel color */ - /* 3- 0 Background pixel color */ - uint8_t color2; /* 7- 4 Emphasis pixel-2 color */ - /* 3- 0 Emphasis pixel-1 color */ - uint32_t ypos; /* 23-22 auto action mode */ - /* 21-12 start y */ - /* 9- 0 end y */ - uint32_t xpos; /* 23-22 button color number */ - /* 21-12 start x */ - /* 9- 0 end x */ - } video_highlight_t; - - -.. _video-spu: - -struct video_spu -================ - -Calling VIDEO_SET_SPU deactivates or activates SPU decoding, according -to the following format: - - -.. code-block:: c - - typedef - struct video_spu { - boolean active; - int stream_id; - } video_spu_t; - - -.. _video-spu-palette: - -struct video_spu_palette -======================== - -The following structure is used to set the SPU palette by calling -VIDEO_SPU_PALETTE: - - -.. code-block:: c - - typedef - struct video_spu_palette { - int length; - uint8_t *palette; - } video_spu_palette_t; - - -.. _video-navi-pack: - -struct video_navi_pack -====================== - -In order to get the navigational data the following structure has to be -passed to the ioctl VIDEO_GET_NAVI: - - -.. code-block:: c - - typedef - struct video_navi_pack { - int length; /* 0 ... 1024 */ - uint8_t data[1024]; - } video_navi_pack_t; - - -.. _video-attributes-t: - -video_attributes_t -================== - -The following attributes can be set by a call to VIDEO_SET_ATTRIBUTES: - - -.. code-block:: c - - typedef uint16_t video_attributes_t; - /* bits: descr. */ - /* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */ - /* 13-12 TV system (0=525/60, 1=625/50) */ - /* 11-10 Aspect ratio (0=4:3, 3=16:9) */ - /* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */ - /* 7 line 21-1 data present in GOP (1=yes, 0=no) */ - /* 6 line 21-2 data present in GOP (1=yes, 0=no) */ - /* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */ - /* 2 source letterboxed (1=yes, 0=no) */ - /* 0 film/camera mode (0=camera, 1=film (625/50 only)) */ diff --git a/Documentation/linux_tv/media/fdl-appendix.rst b/Documentation/linux_tv/media/fdl-appendix.rst deleted file mode 100644 index fd475180fed8..000000000000 --- a/Documentation/linux_tv/media/fdl-appendix.rst +++ /dev/null @@ -1,471 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _fdl: - -****************************** -GNU Free Documentation License -****************************** - - -.. _fdl-preamble: - -0. PREAMBLE -=========== - -The purpose of this License is to make a manual, textbook, or other -written document “free” in the sense of freedom: to assure everyone the -effective freedom to copy and redistribute it, with or without modifying -it, either commercially or noncommercially. Secondarily, this License -preserves for the author and publisher a way to get credit for their -work, while not being considered responsible for modifications made by -others. - -This License is a kind of “copyleft”, which means that derivative works -of the document must themselves be free in the same sense. It -complements the GNU General Public License, which is a copyleft license -designed for free software. - -We have designed this License in order to use it for manuals for free -software, because free software needs free documentation: a free program -should come with manuals providing the same freedoms that the software -does. But this License is not limited to software manuals; it can be -used for any textual work, regardless of subject matter or whether it is -published as a printed book. We recommend this License principally for -works whose purpose is instruction or reference. - - -.. _fdl-section1: - -1. APPLICABILITY AND DEFINITIONS -================================ - - -.. _fdl-document: - -This License applies to any manual or other work that contains a notice -placed by the copyright holder saying it can be distributed under the -terms of this License. The “Document”, below, refers to any such manual -or work. Any member of the public is a licensee, and is addressed as -“you”. - - -.. _fdl-modified: - -A “Modified Version” of the Document means any work containing the -Document or a portion of it, either copied verbatim, or with -modifications and/or translated into another language. - - -.. _fdl-secondary: - -A “Secondary Section” is a named appendix or a front-matter section of -the :ref:`Document ` that deals exclusively with the -relationship of the publishers or authors of the Document to the -Document's overall subject (or to related matters) and contains nothing -that could fall directly within that overall subject. (For example, if -the Document is in part a textbook of mathematics, a Secondary Section -may not explain any mathematics.) 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MODIFICATIONS -================ - -You may copy and distribute a :ref:`Modified Version ` -of the :ref:`Document ` under the conditions of sections -:ref:`2 ` and :ref:`3 ` above, provided -that you release the Modified Version under precisely this License, with -the Modified Version filling the role of the Document, thus licensing -distribution and modification of the Modified Version to whoever -possesses a copy of it. In addition, you must do these things in the -Modified Version: - -- **A.** - Use in the :ref:`Title Page ` (and on the covers, - if any) a title distinct from that of the - :ref:`Document `, and from those of previous versions - (which should, if there were any, be listed in the History section of - the Document). 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These titles must be distinct from any other section -titles. - -You may add a section entitled “Endorsements”, provided it contains -nothing but endorsements of your -:ref:`Modified Version ` by various parties--for -example, statements of peer review or that the text has been approved by -an organization as the authoritative definition of a standard. - -You may add a passage of up to five words as a -:ref:`Front-Cover Text `, and a passage of up to 25 -words as a :ref:`Back-Cover Text `, to the end of the -list of :ref:`Cover Texts ` in the -:ref:`Modified Version `. Only one passage of -Front-Cover Text and one of Back-Cover Text may be added by (or through -arrangements made by) any one entity. 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COMBINING DOCUMENTS -====================== - -You may combine the :ref:`Document ` with other -documents released under this License, under the terms defined in -:ref:`section 4 ` above for modified versions, provided -that you include in the combination all of the -:ref:`Invariant Sections ` of all of the original -documents, unmodified, and list them all as Invariant Sections of your -combined work in its license notice. - -The combined work need only contain one copy of this License, and -multiple identical :ref:`Invariant Sections ` may be -replaced with a single copy. If there are multiple Invariant Sections -with the same name but different contents, make the title of each such -section unique by adding at the end of it, in parentheses, the name of -the original author or publisher of that section if known, or else a -unique number. 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COLLECTIONS OF DOCUMENTS -=========================== - -You may make a collection consisting of the -:ref:`Document ` and other documents released under this -License, and replace the individual copies of this License in the -various documents with a single copy that is included in the collection, -provided that you follow the rules of this License for verbatim copying -of each of the documents in all other respects. - -You may extract a single document from such a collection, and dispbibute -it individually under this License, provided you insert a copy of this -License into the extracted document, and follow this License in all -other respects regarding verbatim copying of that document. - - -.. _fdl-section7: - -7. AGGREGATION WITH INDEPENDENT WORKS -===================================== - -A compilation of the :ref:`Document ` or its derivatives -with other separate and independent documents or works, in or on a -volume of a storage or distribution medium, does not as a whole count as -a :ref:`Modified Version ` of the Document, provided no -compilation copyright is claimed for the compilation. Such a compilation -is called an “aggregate”, and this License does not apply to the other -self-contained works thus compiled with the Document , on account of -their being thus compiled, if they are not themselves derivative works -of the Document. If the :ref:`Cover Text ` -requirement of :ref:`section 3 ` is applicable to these -copies of the Document, then if the Document is less than one quarter of -the entire aggregate, the Document's Cover Texts may be placed on covers -that surround only the Document within the aggregate. Otherwise they -must appear on covers around the whole aggregate. - - -.. _fdl-section8: - -8. TRANSLATION -============== - -Translation is considered a kind of modification, so you may distribute -translations of the :ref:`Document ` under the terms of -:ref:`section 4 `. Replacing -:ref:`Invariant Sections ` with translations requires -special permission from their copyright holders, but you may include -translations of some or all Invariant Sections in addition to the -original versions of these Invariant Sections. You may include a -translation of this License provided that you also include the original -English version of this License. In case of a disagreement between the -translation and the original English version of this License, the -original English version will prevail. - - -.. _fdl-section9: - -9. TERMINATION -============== - -You may not copy, modify, sublicense, or distribute the -:ref:`Document ` except as expressly provided for under -this License. Any other attempt to copy, modify, sublicense or -distribute the Document is void, and will automatically terminate your -rights under this License. However, parties who have received copies, or -rights, from you under this License will not have their licenses -terminated so long as such parties remain in full compliance. - - -.. _fdl-section10: - -10. FUTURE REVISIONS OF THIS LICENSE -==================================== - -The `Free Software Foundation `__ -may publish new, revised versions of the GNU Free Documentation License -from time to time. Such new versions will be similar in spirit to the -present version, but may differ in detail to address new problems or -concerns. See -`http://www.gnu.org/copyleft/ `__. - -Each version of the License is given a distinguishing version number. If -the :ref:`Document ` specifies that a particular -numbered version of this License “or any later version” applies to it, -you have the option of following the terms and conditions either of that -specified version or of any later version that has been published (not -as a draft) by the Free Software Foundation. If the Document does not -specify a version number of this License, you may choose any version -ever published (not as a draft) by the Free Software Foundation. - - -.. _fdl-using: - -Addendum -======== - -To use this License in a document you have written, include a copy of -the License in the document and put the following copyright and license -notices just after the title page: - - Copyright © YEAR YOUR NAME. - - Permission is granted to copy, distribute and/or modify this - document under the terms of the GNU Free Documentation License, - Version 1.1 or any later version published by the Free Software - Foundation; with the :ref:`Invariant Sections ` - being LIST THEIR TITLES, with the - :ref:`Front-Cover Texts ` being LIST, and with - the :ref:`Back-Cover Texts ` being LIST. A copy - of the license is included in the section entitled “GNU Free - Documentation License”. - -If you have no :ref:`Invariant Sections `, write “with -no Invariant Sections” instead of saying which ones are invariant. If -you have no :ref:`Front-Cover Texts `, write “no -Front-Cover Texts” instead of “Front-Cover Texts being LIST”; likewise -for :ref:`Back-Cover Texts `. - -If your document contains nontrivial examples of program code, we -recommend releasing these examples in parallel under your choice of free -software license, such as the -`GNU General Public License `__, -to permit their use in free software. diff --git a/Documentation/linux_tv/media/gen-errors.rst b/Documentation/linux_tv/media/gen-errors.rst deleted file mode 100644 index 6cd5d26f32ab..000000000000 --- a/Documentation/linux_tv/media/gen-errors.rst +++ /dev/null @@ -1,101 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _gen_errors: - -******************* -Generic Error Codes -******************* - - -.. _gen-errors: - -.. flat-table:: Generic error codes - :header-rows: 0 - :stub-columns: 0 - :widths: 1 16 - - - - .. row 1 - - - ``EAGAIN`` (aka ``EWOULDBLOCK``) - - - The ioctl can't be handled because the device is in state where it - can't perform it. This could happen for example in case where - device is sleeping and ioctl is performed to query statistics. It - is also returned when the ioctl would need to wait for an event, - but the device was opened in non-blocking mode. - - - .. row 2 - - - ``EBADF`` - - - The file descriptor is not a valid. - - - .. row 3 - - - ``EBUSY`` - - - The ioctl can't be handled because the device is busy. This is - typically return while device is streaming, and an ioctl tried to - change something that would affect the stream, or would require - the usage of a hardware resource that was already allocated. The - ioctl must not be retried without performing another action to fix - the problem first (typically: stop the stream before retrying). - - - .. row 4 - - - ``EFAULT`` - - - There was a failure while copying data from/to userspace, probably - caused by an invalid pointer reference. - - - .. row 5 - - - ``EINVAL`` - - - One or more of the ioctl parameters are invalid or out of the - allowed range. This is a widely used error code. See the - individual ioctl requests for specific causes. - - - .. row 6 - - - ``ENODEV`` - - - Device not found or was removed. - - - .. row 7 - - - ``ENOMEM`` - - - There's not enough memory to handle the desired operation. - - - .. row 8 - - - ``ENOTTY`` - - - The ioctl is not supported by the driver, actually meaning that - the required functionality is not available, or the file - descriptor is not for a media device. - - - .. row 9 - - - ``ENOSPC`` - - - On USB devices, the stream ioctl's can return this error, meaning - that this request would overcommit the usb bandwidth reserved for - periodic transfers (up to 80% of the USB bandwidth). - - - .. row 10 - - - ``EPERM`` - - - Permission denied. Can be returned if the device needs write - permission, or some special capabilities is needed (e. g. root) - - -Note 1: ioctls may return other error codes. Since errors may have side -effects such as a driver reset, applications should abort on unexpected -errors. - -Note 2: Request-specific error codes are listed in the individual -requests descriptions. diff --git a/Documentation/linux_tv/media/mediactl/media-controller-intro.rst b/Documentation/linux_tv/media/mediactl/media-controller-intro.rst deleted file mode 100644 index 3e776c0d8276..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-controller-intro.rst +++ /dev/null @@ -1,33 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-controller-intro: - -Introduction -============ - -Media devices increasingly handle multiple related functions. Many USB -cameras include microphones, video capture hardware can also output -video, or SoC camera interfaces also perform memory-to-memory operations -similar to video codecs. - -Independent functions, even when implemented in the same hardware, can -be modelled as separate devices. A USB camera with a microphone will be -presented to userspace applications as V4L2 and ALSA capture devices. -The devices' relationships (when using a webcam, end-users shouldn't -have to manually select the associated USB microphone), while not made -available directly to applications by the drivers, can usually be -retrieved from sysfs. - -With more and more advanced SoC devices being introduced, the current -approach will not scale. Device topologies are getting increasingly -complex and can't always be represented by a tree structure. Hardware -blocks are shared between different functions, creating dependencies -between seemingly unrelated devices. - -Kernel abstraction APIs such as V4L2 and ALSA provide means for -applications to access hardware parameters. As newer hardware expose an -increasingly high number of those parameters, drivers need to guess what -applications really require based on limited information, thereby -implementing policies that belong to userspace. - -The media controller API aims at solving those problems. diff --git a/Documentation/linux_tv/media/mediactl/media-controller-model.rst b/Documentation/linux_tv/media/mediactl/media-controller-model.rst deleted file mode 100644 index 558273cf9570..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-controller-model.rst +++ /dev/null @@ -1,35 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-controller-model: - -Media device model -================== - -Discovering a device internal topology, and configuring it at runtime, -is one of the goals of the media controller API. To achieve this, -hardware devices and Linux Kernel interfaces are modelled as graph -objects on an oriented graph. The object types that constitute the graph -are: - -- An **entity** is a basic media hardware or software building block. - It can correspond to a large variety of logical blocks such as - physical hardware devices (CMOS sensor for instance), logical - hardware devices (a building block in a System-on-Chip image - processing pipeline), DMA channels or physical connectors. - -- An **interface** is a graph representation of a Linux Kernel - userspace API interface, like a device node or a sysfs file that - controls one or more entities in the graph. - -- A **pad** is a data connection endpoint through which an entity can - interact with other entities. Data (not restricted to video) produced - by an entity flows from the entity's output to one or more entity - inputs. Pads should not be confused with physical pins at chip - boundaries. - -- A **data link** is a point-to-point oriented connection between two - pads, either on the same entity or on different entities. Data flows - from a source pad to a sink pad. - -- An **interface link** is a point-to-point bidirectional control - connection between a Linux Kernel interface and an entity. diff --git a/Documentation/linux_tv/media/mediactl/media-controller.rst b/Documentation/linux_tv/media/mediactl/media-controller.rst deleted file mode 100644 index 8758308997a7..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-controller.rst +++ /dev/null @@ -1,73 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. include:: - -.. _media_common: - -#################### -Media Controller API -#################### - -.. _media_controller: - -**************** -Media Controller -**************** - - -.. toctree:: - :maxdepth: 1 - :numbered: - - media-controller-intro - media-controller-model - media-types - - -.. _media-user-func: - -****************** -Function Reference -****************** - - -.. toctree:: - :maxdepth: 1 - - media-func-open - media-func-close - media-func-ioctl - media-ioc-device-info - media-ioc-g-topology - media-ioc-enum-entities - media-ioc-enum-links - media-ioc-setup-link - - -********************** -Revision and Copyright -********************** - -Authors: - -- Pinchart, Laurent - - - Initial version. - -- Carvalho Chehab, Mauro - - - MEDIA_IOC_G_TOPOLOGY documentation and documentation improvements. - -**Copyright** |copy| 2010 : Laurent Pinchart - -**Copyright** |copy| 2015-2016 : Mauro Carvalho Chehab - -**************** -Revision History -**************** - -:revision: 1.1.0 / 2015-12-12 (*mcc*) - -:revision: 1.0.0 / 2010-11-10 (*lp*) - -Initial revision diff --git a/Documentation/linux_tv/media/mediactl/media-func-close.rst b/Documentation/linux_tv/media/mediactl/media-func-close.rst deleted file mode 100644 index 39ef70ac8656..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-func-close.rst +++ /dev/null @@ -1,47 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-func-close: - -************* -media close() -************* - -Name -==== - -media-close - Close a media device - - -Synopsis -======== - -.. code-block:: c - - #include - - -.. cpp:function:: int close( int fd ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - - -Description -=========== - -Closes the media device. Resources associated with the file descriptor -are freed. The device configuration remain unchanged. - - -Return Value -============ - -:ref:`close() ` returns 0 on success. On error, -1 is returned, and -``errno`` is set appropriately. Possible error codes are: - -EBADF - ``fd`` is not a valid open file descriptor. diff --git a/Documentation/linux_tv/media/mediactl/media-func-ioctl.rst b/Documentation/linux_tv/media/mediactl/media-func-ioctl.rst deleted file mode 100644 index 9d1b23133edf..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-func-ioctl.rst +++ /dev/null @@ -1,67 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-func-ioctl: - -************* -media ioctl() -************* - -Name -==== - -media-ioctl - Control a media device - - -Synopsis -======== - -.. code-block:: c - - #include - - -.. cpp:function:: int ioctl( int fd, int request, void *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - Media ioctl request code as defined in the media.h header file, for - example MEDIA_IOC_SETUP_LINK. - -``argp`` - Pointer to a request-specific structure. - - -Description -=========== - -The :ref:`ioctl() ` function manipulates media device -parameters. The argument ``fd`` must be an open file descriptor. - -The ioctl ``request`` code specifies the media function to be called. It -has encoded in it whether the argument is an input, output or read/write -parameter, and the size of the argument ``argp`` in bytes. - -Macros and structures definitions specifying media ioctl requests and -their parameters are located in the media.h header file. All media ioctl -requests, their respective function and parameters are specified in -:ref:`media-user-func`. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -Request-specific error codes are listed in the individual requests -descriptions. - -When an ioctl that takes an output or read/write parameter fails, the -parameter remains unmodified. diff --git a/Documentation/linux_tv/media/mediactl/media-func-open.rst b/Documentation/linux_tv/media/mediactl/media-func-open.rst deleted file mode 100644 index 2b2ecd85b995..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-func-open.rst +++ /dev/null @@ -1,69 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-func-open: - -************ -media open() -************ - -Name -==== - -media-open - Open a media device - - -Synopsis -======== - -.. code-block:: c - - #include - - -.. cpp:function:: int open( const char *device_name, int flags ) - - -Arguments -========= - -``device_name`` - Device to be opened. - -``flags`` - Open flags. Access mode must be either ``O_RDONLY`` or ``O_RDWR``. - Other flags have no effect. - - -Description -=========== - -To open a media device applications call :ref:`open() ` with the -desired device name. The function has no side effects; the device -configuration remain unchanged. - -When the device is opened in read-only mode, attempts to modify its -configuration will result in an error, and ``errno`` will be set to -EBADF. - - -Return Value -============ - -:ref:`open() ` returns the new file descriptor on success. On error, --1 is returned, and ``errno`` is set appropriately. Possible error codes -are: - -EACCES - The requested access to the file is not allowed. - -EMFILE - The process already has the maximum number of files open. - -ENFILE - The system limit on the total number of open files has been reached. - -ENOMEM - Insufficient kernel memory was available. - -ENXIO - No device corresponding to this device special file exists. diff --git a/Documentation/linux_tv/media/mediactl/media-ioc-device-info.rst b/Documentation/linux_tv/media/mediactl/media-ioc-device-info.rst deleted file mode 100644 index cee8312bde7d..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-ioc-device-info.rst +++ /dev/null @@ -1,142 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-ioc-device-info: - -*************************** -ioctl MEDIA_IOC_DEVICE_INFO -*************************** - -Name -==== - -MEDIA_IOC_DEVICE_INFO - Query device information - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct media_device_info *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - MEDIA_IOC_DEVICE_INFO - -``argp`` - - -Description -=========== - -All media devices must support the ``MEDIA_IOC_DEVICE_INFO`` ioctl. To -query device information, applications call the ioctl with a pointer to -a struct :ref:`media_device_info `. The driver -fills the structure and returns the information to the application. The -ioctl never fails. - - -.. _media-device-info: - -.. flat-table:: struct media_device_info - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - char - - - ``driver``\ [16] - - - Name of the driver implementing the media API as a NUL-terminated - ASCII string. The driver version is stored in the - ``driver_version`` field. - - Driver specific applications can use this information to verify - the driver identity. It is also useful to work around known bugs, - or to identify drivers in error reports. - - - .. row 2 - - - char - - - ``model``\ [32] - - - Device model name as a NUL-terminated UTF-8 string. The device - version is stored in the ``device_version`` field and is not be - appended to the model name. - - - .. row 3 - - - char - - - ``serial``\ [40] - - - Serial number as a NUL-terminated ASCII string. - - - .. row 4 - - - char - - - ``bus_info``\ [32] - - - Location of the device in the system as a NUL-terminated ASCII - string. This includes the bus type name (PCI, USB, ...) and a - bus-specific identifier. - - - .. row 5 - - - __u32 - - - ``media_version`` - - - Media API version, formatted with the ``KERNEL_VERSION()`` macro. - - - .. row 6 - - - __u32 - - - ``hw_revision`` - - - Hardware device revision in a driver-specific format. - - - .. row 7 - - - __u32 - - - ``driver_version`` - - - Media device driver version, formatted with the - ``KERNEL_VERSION()`` macro. Together with the ``driver`` field - this identifies a particular driver. - - - .. row 8 - - - __u32 - - - ``reserved``\ [31] - - - Reserved for future extensions. Drivers and applications must set - this array to zero. - - -The ``serial`` and ``bus_info`` fields can be used to distinguish -between multiple instances of otherwise identical hardware. The serial -number takes precedence when provided and can be assumed to be unique. -If the serial number is an empty string, the ``bus_info`` field can be -used instead. The ``bus_info`` field is guaranteed to be unique, but can -vary across reboots or device unplug/replug. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst b/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst deleted file mode 100644 index ae88f46b3a9e..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-ioc-enum-entities.rst +++ /dev/null @@ -1,197 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-ioc-enum-entities: - -***************************** -ioctl MEDIA_IOC_ENUM_ENTITIES -***************************** - -Name -==== - -MEDIA_IOC_ENUM_ENTITIES - Enumerate entities and their properties - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct media_entity_desc *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - MEDIA_IOC_ENUM_ENTITIES - -``argp`` - - -Description -=========== - -To query the attributes of an entity, applications set the id field of a -struct :ref:`media_entity_desc ` structure and -call the MEDIA_IOC_ENUM_ENTITIES ioctl with a pointer to this -structure. The driver fills the rest of the structure or returns an -EINVAL error code when the id is invalid. - -Entities can be enumerated by or'ing the id with the -``MEDIA_ENT_ID_FLAG_NEXT`` flag. The driver will return information -about the entity with the smallest id strictly larger than the requested -one ('next entity'), or the ``EINVAL`` error code if there is none. - -Entity IDs can be non-contiguous. Applications must *not* try to -enumerate entities by calling MEDIA_IOC_ENUM_ENTITIES with increasing -id's until they get an error. - - -.. _media-entity-desc: - -.. flat-table:: struct media_entity_desc - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 1 1 8 - - - - .. row 1 - - - __u32 - - - ``id`` - - - - - - - Entity id, set by the application. When the id is or'ed with - ``MEDIA_ENT_ID_FLAG_NEXT``, the driver clears the flag and returns - the first entity with a larger id. - - - .. row 2 - - - char - - - ``name``\ [32] - - - - - - - Entity name as an UTF-8 NULL-terminated string. - - - .. row 3 - - - __u32 - - - ``type`` - - - - - - - Entity type, see :ref:`media-entity-type` for details. - - - .. row 4 - - - __u32 - - - ``revision`` - - - - - - - Entity revision. Always zero (obsolete) - - - .. row 5 - - - __u32 - - - ``flags`` - - - - - - - Entity flags, see :ref:`media-entity-flag` for details. - - - .. row 6 - - - __u32 - - - ``group_id`` - - - - - - - Entity group ID. Always zero (obsolete) - - - .. row 7 - - - __u16 - - - ``pads`` - - - - - - - Number of pads - - - .. row 8 - - - __u16 - - - ``links`` - - - - - - - Total number of outbound links. Inbound links are not counted in - this field. - - - .. row 9 - - - union - - - .. row 10 - - - - - struct - - - ``dev`` - - - - - Valid for (sub-)devices that create a single device node. - - - .. row 11 - - - - - - - __u32 - - - ``major`` - - - Device node major number. - - - .. row 12 - - - - - - - __u32 - - - ``minor`` - - - Device node minor number. - - - .. row 13 - - - - - __u8 - - - ``raw``\ [184] - - - - - - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -EINVAL - The struct :ref:`media_entity_desc ` ``id`` - references a non-existing entity. diff --git a/Documentation/linux_tv/media/mediactl/media-ioc-enum-links.rst b/Documentation/linux_tv/media/mediactl/media-ioc-enum-links.rst deleted file mode 100644 index cc3cc3d2400b..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-ioc-enum-links.rst +++ /dev/null @@ -1,172 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-ioc-enum-links: - -************************** -ioctl MEDIA_IOC_ENUM_LINKS -************************** - -Name -==== - -MEDIA_IOC_ENUM_LINKS - Enumerate all pads and links for a given entity - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct media_links_enum *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - MEDIA_IOC_ENUM_LINKS - -``argp`` - - -Description -=========== - -To enumerate pads and/or links for a given entity, applications set the -entity field of a struct :ref:`media_links_enum ` -structure and initialize the struct -:ref:`media_pad_desc ` and struct -:ref:`media_link_desc ` structure arrays pointed by -the ``pads`` and ``links`` fields. They then call the -MEDIA_IOC_ENUM_LINKS ioctl with a pointer to this structure. - -If the ``pads`` field is not NULL, the driver fills the ``pads`` array -with information about the entity's pads. The array must have enough -room to store all the entity's pads. The number of pads can be retrieved -with the :ref:`MEDIA_IOC_ENUM_ENTITIES ` -ioctl. - -If the ``links`` field is not NULL, the driver fills the ``links`` array -with information about the entity's outbound links. The array must have -enough room to store all the entity's outbound links. The number of -outbound links can be retrieved with the -:ref:`MEDIA_IOC_ENUM_ENTITIES ` ioctl. - -Only forward links that originate at one of the entity's source pads are -returned during the enumeration process. - - -.. _media-links-enum: - -.. flat-table:: struct media_links_enum - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - __u32 - - - ``entity`` - - - Entity id, set by the application. - - - .. row 2 - - - struct :ref:`media_pad_desc ` - - - \*\ ``pads`` - - - Pointer to a pads array allocated by the application. Ignored if - NULL. - - - .. row 3 - - - struct :ref:`media_link_desc ` - - - \*\ ``links`` - - - Pointer to a links array allocated by the application. Ignored if - NULL. - - - -.. _media-pad-desc: - -.. flat-table:: struct media_pad_desc - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - __u32 - - - ``entity`` - - - ID of the entity this pad belongs to. - - - .. row 2 - - - __u16 - - - ``index`` - - - 0-based pad index. - - - .. row 3 - - - __u32 - - - ``flags`` - - - Pad flags, see :ref:`media-pad-flag` for more details. - - - -.. _media-link-desc: - -.. flat-table:: struct media_link_desc - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - struct :ref:`media_pad_desc ` - - - ``source`` - - - Pad at the origin of this link. - - - .. row 2 - - - struct :ref:`media_pad_desc ` - - - ``sink`` - - - Pad at the target of this link. - - - .. row 3 - - - __u32 - - - ``flags`` - - - Link flags, see :ref:`media-link-flag` for more details. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -EINVAL - The struct :ref:`media_links_enum ` ``id`` - references a non-existing entity. diff --git a/Documentation/linux_tv/media/mediactl/media-ioc-g-topology.rst b/Documentation/linux_tv/media/mediactl/media-ioc-g-topology.rst deleted file mode 100644 index 1f2d530aa284..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-ioc-g-topology.rst +++ /dev/null @@ -1,377 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-g-topology: - -************************** -ioctl MEDIA_IOC_G_TOPOLOGY -************************** - -Name -==== - -MEDIA_IOC_G_TOPOLOGY - Enumerate the graph topology and graph element properties - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct media_v2_topology *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - MEDIA_IOC_G_TOPOLOGY - -``argp`` - - -Description -=========== - -The typical usage of this ioctl is to call it twice. On the first call, -the structure defined at struct -:ref:`media_v2_topology ` should be zeroed. At -return, if no errors happen, this ioctl will return the -``topology_version`` and the total number of entities, interfaces, pads -and links. - -Before the second call, the userspace should allocate arrays to store -the graph elements that are desired, putting the pointers to them at the -ptr_entities, ptr_interfaces, ptr_links and/or ptr_pads, keeping the -other values untouched. - -If the ``topology_version`` remains the same, the ioctl should fill the -desired arrays with the media graph elements. - - -.. _media-v2-topology: - -.. flat-table:: struct media_v2_topology - :header-rows: 0 - :stub-columns: 0 - :widths: 1 2 8 - - - - .. row 1 - - - __u64 - - - ``topology_version`` - - - Version of the media graph topology. When the graph is created, - this field starts with zero. Every time a graph element is added - or removed, this field is incremented. - - - .. row 2 - - - __u64 - - - ``num_entities`` - - - Number of entities in the graph - - - .. row 3 - - - __u64 - - - ``ptr_entities`` - - - A pointer to a memory area where the entities array will be - stored, converted to a 64-bits integer. It can be zero. if zero, - the ioctl won't store the entities. It will just update - ``num_entities`` - - - .. row 4 - - - __u64 - - - ``num_interfaces`` - - - Number of interfaces in the graph - - - .. row 5 - - - __u64 - - - ``ptr_interfaces`` - - - A pointer to a memory area where the interfaces array will be - stored, converted to a 64-bits integer. It can be zero. if zero, - the ioctl won't store the interfaces. It will just update - ``num_interfaces`` - - - .. row 6 - - - __u64 - - - ``num_pads`` - - - Total number of pads in the graph - - - .. row 7 - - - __u64 - - - ``ptr_pads`` - - - A pointer to a memory area where the pads array will be stored, - converted to a 64-bits integer. It can be zero. if zero, the ioctl - won't store the pads. It will just update ``num_pads`` - - - .. row 8 - - - __u64 - - - ``num_links`` - - - Total number of data and interface links in the graph - - - .. row 9 - - - __u64 - - - ``ptr_links`` - - - A pointer to a memory area where the links array will be stored, - converted to a 64-bits integer. It can be zero. if zero, the ioctl - won't store the links. It will just update ``num_links`` - - - -.. _media-v2-entity: - -.. flat-table:: struct media_v2_entity - :header-rows: 0 - :stub-columns: 0 - :widths: 1 2 8 - - - - .. row 1 - - - __u32 - - - ``id`` - - - Unique ID for the entity. - - - .. row 2 - - - char - - - ``name``\ [64] - - - Entity name as an UTF-8 NULL-terminated string. - - - .. row 3 - - - __u32 - - - ``function`` - - - Entity main function, see :ref:`media-entity-type` for details. - - - .. row 4 - - - __u32 - - - ``reserved``\ [12] - - - Reserved for future extensions. Drivers and applications must set - this array to zero. - - - -.. _media-v2-interface: - -.. flat-table:: struct media_v2_interface - :header-rows: 0 - :stub-columns: 0 - :widths: 1 2 8 - - - .. row 1 - - - __u32 - - - ``id`` - - - Unique ID for the interface. - - - .. row 2 - - - __u32 - - - ``intf_type`` - - - Interface type, see :ref:`media-intf-type` for details. - - - .. row 3 - - - __u32 - - - ``flags`` - - - Interface flags. Currently unused. - - - .. row 4 - - - __u32 - - - ``reserved``\ [9] - - - Reserved for future extensions. Drivers and applications must set - this array to zero. - - - .. row 5 - - - struct media_v2_intf_devnode - - - ``devnode`` - - - Used only for device node interfaces. See - :ref:`media-v2-intf-devnode` for details.. - - - -.. _media-v2-intf-devnode: - -.. flat-table:: struct media_v2_interface - :header-rows: 0 - :stub-columns: 0 - :widths: 1 2 8 - - - - .. row 1 - - - __u32 - - - ``major`` - - - Device node major number. - - - .. row 2 - - - __u32 - - - ``minor`` - - - Device node minor number. - - - -.. _media-v2-pad: - -.. flat-table:: struct media_v2_pad - :header-rows: 0 - :stub-columns: 0 - :widths: 1 2 8 - - - - .. row 1 - - - __u32 - - - ``id`` - - - Unique ID for the pad. - - - .. row 2 - - - __u32 - - - ``entity_id`` - - - Unique ID for the entity where this pad belongs. - - - .. row 3 - - - __u32 - - - ``flags`` - - - Pad flags, see :ref:`media-pad-flag` for more details. - - - .. row 4 - - - __u32 - - - ``reserved``\ [9] - - - Reserved for future extensions. Drivers and applications must set - this array to zero. - - - -.. _media-v2-link: - -.. flat-table:: struct media_v2_pad - :header-rows: 0 - :stub-columns: 0 - :widths: 1 2 8 - - - - .. row 1 - - - __u32 - - - ``id`` - - - Unique ID for the pad. - - - .. row 2 - - - __u32 - - - ``source_id`` - - - On pad to pad links: unique ID for the source pad. - - On interface to entity links: unique ID for the interface. - - - .. row 3 - - - __u32 - - - ``sink_id`` - - - On pad to pad links: unique ID for the sink pad. - - On interface to entity links: unique ID for the entity. - - - .. row 4 - - - __u32 - - - ``flags`` - - - Link flags, see :ref:`media-link-flag` for more details. - - - .. row 5 - - - __u32 - - - ``reserved``\ [5] - - - Reserved for future extensions. Drivers and applications must set - this array to zero. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -ENOSPC - This is returned when either one or more of the num_entities, - num_interfaces, num_links or num_pads are non-zero and are - smaller than the actual number of elements inside the graph. This - may happen if the ``topology_version`` changed when compared to the - last time this ioctl was called. Userspace should usually free the - area for the pointers, zero the struct elements and call this ioctl - again. diff --git a/Documentation/linux_tv/media/mediactl/media-ioc-setup-link.rst b/Documentation/linux_tv/media/mediactl/media-ioc-setup-link.rst deleted file mode 100644 index 57ae5bcc646a..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-ioc-setup-link.rst +++ /dev/null @@ -1,68 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-ioc-setup-link: - -************************** -ioctl MEDIA_IOC_SETUP_LINK -************************** - -Name -==== - -MEDIA_IOC_SETUP_LINK - Modify the properties of a link - - -Synopsis -======== - -.. cpp:function:: int ioctl( int fd, int request, struct media_link_desc *argp ) - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() `. - -``request`` - MEDIA_IOC_SETUP_LINK - -``argp`` - - -Description -=========== - -To change link properties applications fill a struct -:ref:`media_link_desc ` with link identification -information (source and sink pad) and the new requested link flags. They -then call the MEDIA_IOC_SETUP_LINK ioctl with a pointer to that -structure. - -The only configurable property is the ``ENABLED`` link flag to -enable/disable a link. Links marked with the ``IMMUTABLE`` link flag can -not be enabled or disabled. - -Link configuration has no side effect on other links. If an enabled link -at the sink pad prevents the link from being enabled, the driver returns -with an ``EBUSY`` error code. - -Only links marked with the ``DYNAMIC`` link flag can be enabled/disabled -while streaming media data. Attempting to enable or disable a streaming -non-dynamic link will return an ``EBUSY`` error code. - -If the specified link can't be found the driver returns with an ``EINVAL`` -error code. - - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. - -EINVAL - The struct :ref:`media_link_desc ` references a - non-existing link, or the link is immutable and an attempt to modify - its configuration was made. diff --git a/Documentation/linux_tv/media/mediactl/media-types.rst b/Documentation/linux_tv/media/mediactl/media-types.rst deleted file mode 100644 index a35fc15a3137..000000000000 --- a/Documentation/linux_tv/media/mediactl/media-types.rst +++ /dev/null @@ -1,422 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _media-controller-types: - -Types and flags used to represent the media graph elements -========================================================== - - -.. _media-entity-type: - -.. flat-table:: Media entity types - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``MEDIA_ENT_F_UNKNOWN`` and ``MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN`` - - - Unknown entity. That generally indicates that a driver didn't - initialize properly the entity, with is a Kernel bug - - - .. row 2 - - - ``MEDIA_ENT_F_IO_V4L`` - - - Data streaming input and/or output entity. - - - .. row 3 - - - ``MEDIA_ENT_F_IO_VBI`` - - - V4L VBI streaming input or output entity - - - .. row 4 - - - ``MEDIA_ENT_F_IO_SWRADIO`` - - - V4L Software Digital Radio (SDR) streaming input or output entity - - - .. row 5 - - - ``MEDIA_ENT_F_IO_DTV`` - - - DVB Digital TV streaming input or output entity - - - .. row 6 - - - ``MEDIA_ENT_F_DTV_DEMOD`` - - - Digital TV demodulator entity. - - - .. row 7 - - - ``MEDIA_ENT_F_TS_DEMUX`` - - - MPEG Transport stream demux entity. Could be implemented on - hardware or in Kernelspace by the Linux DVB subsystem. - - - .. row 8 - - - ``MEDIA_ENT_F_DTV_CA`` - - - Digital TV Conditional Access module (CAM) entity - - - .. row 9 - - - ``MEDIA_ENT_F_DTV_NET_DECAP`` - - - Digital TV network ULE/MLE desencapsulation entity. Could be - implemented on hardware or in Kernelspace - - - .. row 10 - - - ``MEDIA_ENT_F_CONN_RF`` - - - Connector for a Radio Frequency (RF) signal. - - - .. row 11 - - - ``MEDIA_ENT_F_CONN_SVIDEO`` - - - Connector for a S-Video signal. - - - .. row 12 - - - ``MEDIA_ENT_F_CONN_COMPOSITE`` - - - Connector for a RGB composite signal. - - - .. row 13 - - - ``MEDIA_ENT_F_CAM_SENSOR`` - - - Camera video sensor entity. - - - .. row 14 - - - ``MEDIA_ENT_F_FLASH`` - - - Flash controller entity. - - - .. row 15 - - - ``MEDIA_ENT_F_LENS`` - - - Lens controller entity. - - - .. row 16 - - - ``MEDIA_ENT_F_ATV_DECODER`` - - - Analog video decoder, the basic function of the video decoder is - to accept analogue video from a wide variety of sources such as - broadcast, DVD players, cameras and video cassette recorders, in - either NTSC, PAL, SECAM or HD format, separating the stream into - its component parts, luminance and chrominance, and output it in - some digital video standard, with appropriate timing signals. - - - .. row 17 - - - ``MEDIA_ENT_F_TUNER`` - - - Digital TV, analog TV, radio and/or software radio tuner, with - consists on a PLL tuning stage that converts radio frequency (RF) - signal into an Intermediate Frequency (IF). Modern tuners have - internally IF-PLL decoders for audio and video, but older models - have those stages implemented on separate entities. - - - .. row 18 - - - ``MEDIA_ENT_F_IF_VID_DECODER`` - - - IF-PLL video decoder. It receives the IF from a PLL and decodes - the analog TV video signal. This is commonly found on some very - old analog tuners, like Philips MK3 designs. They all contain a - tda9887 (or some software compatible similar chip, like tda9885). - Those devices use a different I2C address than the tuner PLL. - - - .. row 19 - - - ``MEDIA_ENT_F_IF_AUD_DECODER`` - - - IF-PLL sound decoder. It receives the IF from a PLL and decodes - the analog TV audio signal. This is commonly found on some very - old analog hardware, like Micronas msp3400, Philips tda9840, - tda985x, etc. Those devices use a different I2C address than the - tuner PLL and should be controlled together with the IF-PLL video - decoder. - - - .. row 20 - - - ``MEDIA_ENT_F_AUDIO_CAPTURE`` - - - Audio Capture Function Entity. - - - .. row 21 - - - ``MEDIA_ENT_F_AUDIO_PLAYBACK`` - - - Audio Playback Function Entity. - - - .. row 22 - - - ``MEDIA_ENT_F_AUDIO_MIXER`` - - - Audio Mixer Function Entity. - - - -.. _media-entity-flag: - -.. flat-table:: Media entity flags - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``MEDIA_ENT_FL_DEFAULT`` - - - Default entity for its type. Used to discover the default audio, - VBI and video devices, the default camera sensor, ... - - - .. row 2 - - - ``MEDIA_ENT_FL_CONNECTOR`` - - - The entity represents a data conector - - - -.. _media-intf-type: - -.. flat-table:: Media interface types - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``MEDIA_INTF_T_DVB_FE`` - - - Device node interface for the Digital TV frontend - - - typically, /dev/dvb/adapter?/frontend? - - - .. row 2 - - - ``MEDIA_INTF_T_DVB_DEMUX`` - - - Device node interface for the Digital TV demux - - - typically, /dev/dvb/adapter?/demux? - - - .. row 3 - - - ``MEDIA_INTF_T_DVB_DVR`` - - - Device node interface for the Digital TV DVR - - - typically, /dev/dvb/adapter?/dvr? - - - .. row 4 - - - ``MEDIA_INTF_T_DVB_CA`` - - - Device node interface for the Digital TV Conditional Access - - - typically, /dev/dvb/adapter?/ca? - - - .. row 5 - - - ``MEDIA_INTF_T_DVB_FE`` - - - Device node interface for the Digital TV network control - - - typically, /dev/dvb/adapter?/net? - - - .. row 6 - - - ``MEDIA_INTF_T_V4L_VIDEO`` - - - Device node interface for video (V4L) - - - typically, /dev/video? - - - .. row 7 - - - ``MEDIA_INTF_T_V4L_VBI`` - - - Device node interface for VBI (V4L) - - - typically, /dev/vbi? - - - .. row 8 - - - ``MEDIA_INTF_T_V4L_RADIO`` - - - Device node interface for radio (V4L) - - - typically, /dev/vbi? - - - .. row 9 - - - ``MEDIA_INTF_T_V4L_SUBDEV`` - - - Device node interface for a V4L subdevice - - - typically, /dev/v4l-subdev? - - - .. row 10 - - - ``MEDIA_INTF_T_V4L_SWRADIO`` - - - Device node interface for Software Defined Radio (V4L) - - - typically, /dev/swradio? - - - .. row 11 - - - ``MEDIA_INTF_T_ALSA_PCM_CAPTURE`` - - - Device node interface for ALSA PCM Capture - - - typically, /dev/snd/pcmC?D?c - - - .. row 12 - - - ``MEDIA_INTF_T_ALSA_PCM_PLAYBACK`` - - - Device node interface for ALSA PCM Playback - - - typically, /dev/snd/pcmC?D?p - - - .. row 13 - - - ``MEDIA_INTF_T_ALSA_CONTROL`` - - - Device node interface for ALSA Control - - - typically, /dev/snd/controlC? - - - .. row 14 - - - ``MEDIA_INTF_T_ALSA_COMPRESS`` - - - Device node interface for ALSA Compress - - - typically, /dev/snd/compr? - - - .. row 15 - - - ``MEDIA_INTF_T_ALSA_RAWMIDI`` - - - Device node interface for ALSA Raw MIDI - - - typically, /dev/snd/midi? - - - .. row 16 - - - ``MEDIA_INTF_T_ALSA_HWDEP`` - - - Device node interface for ALSA Hardware Dependent - - - typically, /dev/snd/hwC?D? - - - .. row 17 - - - ``MEDIA_INTF_T_ALSA_SEQUENCER`` - - - Device node interface for ALSA Sequencer - - - typically, /dev/snd/seq - - - .. row 18 - - - ``MEDIA_INTF_T_ALSA_TIMER`` - - - Device node interface for ALSA Timer - - - typically, /dev/snd/timer - - - -.. _media-pad-flag: - -.. flat-table:: Media pad flags - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``MEDIA_PAD_FL_SINK`` - - - Input pad, relative to the entity. Input pads sink data and are - targets of links. - - - .. row 2 - - - ``MEDIA_PAD_FL_SOURCE`` - - - Output pad, relative to the entity. Output pads source data and - are origins of links. - - - .. row 3 - - - ``MEDIA_PAD_FL_MUST_CONNECT`` - - - If this flag is set and the pad is linked to any other pad, then - at least one of those links must be enabled for the entity to be - able to stream. There could be temporary reasons (e.g. device - configuration dependent) for the pad to need enabled links even - when this flag isn't set; the absence of the flag doesn't imply - there is none. - - -One and only one of ``MEDIA_PAD_FL_SINK`` and ``MEDIA_PAD_FL_SOURCE`` -must be set for every pad. - - -.. _media-link-flag: - -.. flat-table:: Media link flags - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``MEDIA_LNK_FL_ENABLED`` - - - The link is enabled and can be used to transfer media data. When - two or more links target a sink pad, only one of them can be - enabled at a time. - - - .. row 2 - - - ``MEDIA_LNK_FL_IMMUTABLE`` - - - The link enabled state can't be modified at runtime. An immutable - link is always enabled. - - - .. row 3 - - - ``MEDIA_LNK_FL_DYNAMIC`` - - - The link enabled state can be modified during streaming. This flag - is set by drivers and is read-only for applications. - - - .. row 4 - - - ``MEDIA_LNK_FL_LINK_TYPE`` - - - This is a bitmask that defines the type of the link. Currently, - two types of links are supported: - - ``MEDIA_LNK_FL_DATA_LINK`` if the link is between two pads - - ``MEDIA_LNK_FL_INTERFACE_LINK`` if the link is between an - interface and an entity diff --git a/Documentation/linux_tv/media/rc/Remote_controllers_Intro.rst b/Documentation/linux_tv/media/rc/Remote_controllers_Intro.rst deleted file mode 100644 index 3707c29d37ed..000000000000 --- a/Documentation/linux_tv/media/rc/Remote_controllers_Intro.rst +++ /dev/null @@ -1,24 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _Remote_controllers_Intro: - -************ -Introduction -************ - -Currently, most analog and digital devices have a Infrared input for -remote controllers. Each manufacturer has their own type of control. It -is not rare for the same manufacturer to ship different types of -controls, depending on the device. - -A Remote Controller interface is mapped as a normal evdev/input -interface, just like a keyboard or a mouse. So, it uses all ioctls -already defined for any other input devices. - -However, remove controllers are more flexible than a normal input -device, as the IR receiver (and/or transmitter) can be used in -conjunction with a wide variety of different IR remotes. - -In order to allow flexibility, the Remote Controller subsystem allows -controlling the RC-specific attributes via -:ref:`the sysfs class nodes `. diff --git a/Documentation/linux_tv/media/rc/Remote_controllers_table_change.rst b/Documentation/linux_tv/media/rc/Remote_controllers_table_change.rst deleted file mode 100644 index d604896bca87..000000000000 --- a/Documentation/linux_tv/media/rc/Remote_controllers_table_change.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _Remote_controllers_table_change: - -******************************************* -Changing default Remote Controller mappings -******************************************* - -The event interface provides two ioctls to be used against the -/dev/input/event device, to allow changing the default keymapping. - -This program demonstrates how to replace the keymap tables. - - -.. toctree:: - :maxdepth: 1 - - keytable.c diff --git a/Documentation/linux_tv/media/rc/Remote_controllers_tables.rst b/Documentation/linux_tv/media/rc/Remote_controllers_tables.rst deleted file mode 100644 index 0bb16c4af27d..000000000000 --- a/Documentation/linux_tv/media/rc/Remote_controllers_tables.rst +++ /dev/null @@ -1,757 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _Remote_controllers_tables: - -************************ -Remote controller tables -************************ - -Unfortunately, for several years, there was no effort to create uniform -IR keycodes for different devices. This caused the same IR keyname to be -mapped completely differently on different IR devices. This resulted -that the same IR keyname to be mapped completely different on different -IR's. Due to that, V4L2 API now specifies a standard for mapping Media -keys on IR. - -This standard should be used by both V4L/DVB drivers and userspace -applications - -The modules register the remote as keyboard within the linux input -layer. This means that the IR key strokes will look like normal keyboard -key strokes (if CONFIG_INPUT_KEYBOARD is enabled). Using the event -devices (CONFIG_INPUT_EVDEV) it is possible for applications to access -the remote via /dev/input/event devices. - - -.. _rc_standard_keymap: - -.. flat-table:: IR default keymapping - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - Key code - - - Meaning - - - Key examples on IR - - - .. row 2 - - - **Numeric keys** - - - .. row 3 - - - ``KEY_0`` - - - Keyboard digit 0 - - - 0 - - - .. row 4 - - - ``KEY_1`` - - - Keyboard digit 1 - - - 1 - - - .. row 5 - - - ``KEY_2`` - - - Keyboard digit 2 - - - 2 - - - .. row 6 - - - ``KEY_3`` - - - Keyboard digit 3 - - - 3 - - - .. row 7 - - - ``KEY_4`` - - - Keyboard digit 4 - - - 4 - - - .. row 8 - - - ``KEY_5`` - - - Keyboard digit 5 - - - 5 - - - .. row 9 - - - ``KEY_6`` - - - Keyboard digit 6 - - - 6 - - - .. row 10 - - - ``KEY_7`` - - - Keyboard digit 7 - - - 7 - - - .. row 11 - - - ``KEY_8`` - - - Keyboard digit 8 - - - 8 - - - .. row 12 - - - ``KEY_9`` - - - Keyboard digit 9 - - - 9 - - - .. row 13 - - - **Movie play control** - - - .. row 14 - - - ``KEY_FORWARD`` - - - Instantly advance in time - - - >> / FORWARD - - - .. row 15 - - - ``KEY_BACK`` - - - Instantly go back in time - - - <<< / BACK - - - .. row 16 - - - ``KEY_FASTFORWARD`` - - - Play movie faster - - - >>> / FORWARD - - - .. row 17 - - - ``KEY_REWIND`` - - - Play movie back - - - REWIND / BACKWARD - - - .. row 18 - - - ``KEY_NEXT`` - - - Select next chapter / sub-chapter / interval - - - NEXT / SKIP - - - .. row 19 - - - ``KEY_PREVIOUS`` - - - Select previous chapter / sub-chapter / interval - - - << / PREV / PREVIOUS - - - .. row 20 - - - ``KEY_AGAIN`` - - - Repeat the video or a video interval - - - REPEAT / LOOP / RECALL - - - .. row 21 - - - ``KEY_PAUSE`` - - - Pause sroweam - - - PAUSE / FREEZE - - - .. row 22 - - - ``KEY_PLAY`` - - - Play movie at the normal timeshift - - - NORMAL TIMESHIFT / LIVE / > - - - .. row 23 - - - ``KEY_PLAYPAUSE`` - - - Alternate between play and pause - - - PLAY / PAUSE - - - .. row 24 - - - ``KEY_STOP`` - - - Stop sroweam - - - STOP - - - .. row 25 - - - ``KEY_RECORD`` - - - Start/stop recording sroweam - - - CAPTURE / REC / RECORD/PAUSE - - - .. row 26 - - - ``KEY_CAMERA`` - - - Take a picture of the image - - - CAMERA ICON / CAPTURE / SNAPSHOT - - - .. row 27 - - - ``KEY_SHUFFLE`` - - - Enable shuffle mode - - - SHUFFLE - - - .. row 28 - - - ``KEY_TIME`` - - - Activate time shift mode - - - TIME SHIFT - - - .. row 29 - - - ``KEY_TITLE`` - - - Allow changing the chapter - - - CHAPTER - - - .. row 30 - - - ``KEY_SUBTITLE`` - - - Allow changing the subtitle - - - SUBTITLE - - - .. row 31 - - - **Image control** - - - .. row 32 - - - ``KEY_BRIGHTNESSDOWN`` - - - Decrease Brightness - - - BRIGHTNESS DECREASE - - - .. row 33 - - - ``KEY_BRIGHTNESSUP`` - - - Increase Brightness - - - BRIGHTNESS INCREASE - - - .. row 34 - - - ``KEY_ANGLE`` - - - Switch video camera angle (on videos with more than one angle - stored) - - - ANGLE / SWAP - - - .. row 35 - - - ``KEY_EPG`` - - - Open the Elecrowonic Play Guide (EPG) - - - EPG / GUIDE - - - .. row 36 - - - ``KEY_TEXT`` - - - Activate/change closed caption mode - - - CLOSED CAPTION/TELETEXT / DVD TEXT / TELETEXT / TTX - - - .. row 37 - - - **Audio control** - - - .. row 38 - - - ``KEY_AUDIO`` - - - Change audio source - - - AUDIO SOURCE / AUDIO / MUSIC - - - .. row 39 - - - ``KEY_MUTE`` - - - Mute/unmute audio - - - MUTE / DEMUTE / UNMUTE - - - .. row 40 - - - ``KEY_VOLUMEDOWN`` - - - Decrease volume - - - VOLUME- / VOLUME DOWN - - - .. row 41 - - - ``KEY_VOLUMEUP`` - - - Increase volume - - - VOLUME+ / VOLUME UP - - - .. row 42 - - - ``KEY_MODE`` - - - Change sound mode - - - MONO/STEREO - - - .. row 43 - - - ``KEY_LANGUAGE`` - - - Select Language - - - 1ST / 2ND LANGUAGE / DVD LANG / MTS/SAP / MTS SEL - - - .. row 44 - - - **Channel control** - - - .. row 45 - - - ``KEY_CHANNEL`` - - - Go to the next favorite channel - - - ALT / CHANNEL / CH SURFING / SURF / FAV - - - .. row 46 - - - ``KEY_CHANNELDOWN`` - - - Decrease channel sequencially - - - CHANNEL - / CHANNEL DOWN / DOWN - - - .. row 47 - - - ``KEY_CHANNELUP`` - - - Increase channel sequencially - - - CHANNEL + / CHANNEL UP / UP - - - .. row 48 - - - ``KEY_DIGITS`` - - - Use more than one digit for channel - - - PLUS / 100/ 1xx / xxx / -/-- / Single Double Triple Digit - - - .. row 49 - - - ``KEY_SEARCH`` - - - Start channel autoscan - - - SCAN / AUTOSCAN - - - .. row 50 - - - **Colored keys** - - - .. row 51 - - - ``KEY_BLUE`` - - - IR Blue key - - - BLUE - - - .. row 52 - - - ``KEY_GREEN`` - - - IR Green Key - - - GREEN - - - .. row 53 - - - ``KEY_RED`` - - - IR Red key - - - RED - - - .. row 54 - - - ``KEY_YELLOW`` - - - IR Yellow key - - - YELLOW - - - .. row 55 - - - **Media selection** - - - .. row 56 - - - ``KEY_CD`` - - - Change input source to Compact Disc - - - CD - - - .. row 57 - - - ``KEY_DVD`` - - - Change input to DVD - - - DVD / DVD MENU - - - .. row 58 - - - ``KEY_EJECTCLOSECD`` - - - Open/close the CD/DVD player - - - -> ) / CLOSE / OPEN - - - .. row 59 - - - ``KEY_MEDIA`` - - - Turn on/off Media application - - - PC/TV / TURN ON/OFF APP - - - .. row 60 - - - ``KEY_PC`` - - - Selects from TV to PC - - - PC - - - .. row 61 - - - ``KEY_RADIO`` - - - Put into AM/FM radio mode - - - RADIO / TV/FM / TV/RADIO / FM / FM/RADIO - - - .. row 62 - - - ``KEY_TV`` - - - Select tv mode - - - TV / LIVE TV - - - .. row 63 - - - ``KEY_TV2`` - - - Select Cable mode - - - AIR/CBL - - - .. row 64 - - - ``KEY_VCR`` - - - Select VCR mode - - - VCR MODE / DTR - - - .. row 65 - - - ``KEY_VIDEO`` - - - Alternate between input modes - - - SOURCE / SELECT / DISPLAY / SWITCH INPUTS / VIDEO - - - .. row 66 - - - **Power control** - - - .. row 67 - - - ``KEY_POWER`` - - - Turn on/off computer - - - SYSTEM POWER / COMPUTER POWER - - - .. row 68 - - - ``KEY_POWER2`` - - - Turn on/off application - - - TV ON/OFF / POWER - - - .. row 69 - - - ``KEY_SLEEP`` - - - Activate sleep timer - - - SLEEP / SLEEP TIMER - - - .. row 70 - - - ``KEY_SUSPEND`` - - - Put computer into suspend mode - - - STANDBY / SUSPEND - - - .. row 71 - - - **Window control** - - - .. row 72 - - - ``KEY_CLEAR`` - - - Stop sroweam and return to default input video/audio - - - CLEAR / RESET / BOSS KEY - - - .. row 73 - - - ``KEY_CYCLEWINDOWS`` - - - Minimize windows and move to the next one - - - ALT-TAB / MINIMIZE / DESKTOP - - - .. row 74 - - - ``KEY_FAVORITES`` - - - Open the favorites sroweam window - - - TV WALL / Favorites - - - .. row 75 - - - ``KEY_MENU`` - - - Call application menu - - - 2ND CONTROLS (USA: MENU) / DVD/MENU / SHOW/HIDE CTRL - - - .. row 76 - - - ``KEY_NEW`` - - - Open/Close Picture in Picture - - - PIP - - - .. row 77 - - - ``KEY_OK`` - - - Send a confirmation code to application - - - OK / ENTER / RETURN - - - .. row 78 - - - ``KEY_SCREEN`` - - - Select screen aspect ratio - - - 4:3 16:9 SELECT - - - .. row 79 - - - ``KEY_ZOOM`` - - - Put device into zoom/full screen mode - - - ZOOM / FULL SCREEN / ZOOM+ / HIDE PANNEL / SWITCH - - - .. row 80 - - - **Navigation keys** - - - .. row 81 - - - ``KEY_ESC`` - - - Cancel current operation - - - CANCEL / BACK - - - .. row 82 - - - ``KEY_HELP`` - - - Open a Help window - - - HELP - - - .. row 83 - - - ``KEY_HOMEPAGE`` - - - Navigate to Homepage - - - HOME - - - .. row 84 - - - ``KEY_INFO`` - - - Open On Screen Display - - - DISPLAY INFORMATION / OSD - - - .. row 85 - - - ``KEY_WWW`` - - - Open the default browser - - - WEB - - - .. row 86 - - - ``KEY_UP`` - - - Up key - - - UP - - - .. row 87 - - - ``KEY_DOWN`` - - - Down key - - - DOWN - - - .. row 88 - - - ``KEY_LEFT`` - - - Left key - - - LEFT - - - .. row 89 - - - ``KEY_RIGHT`` - - - Right key - - - RIGHT - - - .. row 90 - - - **Miscellaneous keys** - - - .. row 91 - - - ``KEY_DOT`` - - - Return a dot - - - . - - - .. row 92 - - - ``KEY_FN`` - - - Select a function - - - FUNCTION - - -It should be noted that, sometimes, there some fundamental missing keys -at some cheaper IR's. Due to that, it is recommended to: - - -.. _rc_keymap_notes: - -.. flat-table:: Notes - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - On simpler IR's, without separate channel keys, you need to map UP - as ``KEY_CHANNELUP`` - - - .. row 2 - - - On simpler IR's, without separate channel keys, you need to map - DOWN as ``KEY_CHANNELDOWN`` - - - .. row 3 - - - On simpler IR's, without separate volume keys, you need to map - LEFT as ``KEY_VOLUMEDOWN`` - - - .. row 4 - - - On simpler IR's, without separate volume keys, you need to map - RIGHT as ``KEY_VOLUMEUP`` diff --git a/Documentation/linux_tv/media/rc/keytable.c.rst b/Documentation/linux_tv/media/rc/keytable.c.rst deleted file mode 100644 index 5718ffa011d4..000000000000 --- a/Documentation/linux_tv/media/rc/keytable.c.rst +++ /dev/null @@ -1,176 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -file: media/v4l/keytable.c -========================== - -.. code-block:: c - - /* keytable.c - This program allows checking/replacing keys at IR - - Copyright (C) 2006-2009 Mauro Carvalho Chehab - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - */ - - #include - #include - #include - #include - #include - #include - #include - #include - - #include "parse.h" - - void prtcode (int *codes) - { - struct parse_key *p; - - for (p=keynames;p->name!=NULL;p++) { - if (p->value == (unsigned)codes[1]) { - printf("scancode 0x%04x = %s (0x%02x)\\n", codes[0], p->name, codes[1]); - return; - } - } - - if (isprint (codes[1])) - printf("scancode %d = '%c' (0x%02x)\\n", codes[0], codes[1], codes[1]); - else - printf("scancode %d = 0x%02x\\n", codes[0], codes[1]); - } - - int parse_code(char *string) - { - struct parse_key *p; - - for (p=keynames;p->name!=NULL;p++) { - if (!strcasecmp(p->name, string)) { - return p->value; - } - } - return -1; - } - - int main (int argc, char *argv[]) - { - int fd; - unsigned int i, j; - int codes[2]; - - if (argc<2 || argc>4) { - printf ("usage: %s to get table; or\\n" - " %s \\n" - " %s n",*argv,*argv,*argv); - return -1; - } - - if ((fd = open(argv[1], O_RDONLY)) < 0) { - perror("Couldn't open input device"); - return(-1); - } - - if (argc==4) { - int value; - - value=parse_code(argv[3]); - - if (value==-1) { - value = strtol(argv[3], NULL, 0); - if (errno) - perror("value"); - } - - codes [0] = (unsigned) strtol(argv[2], NULL, 0); - codes [1] = (unsigned) value; - - if(ioctl(fd, EVIOCSKEYCODE, codes)) - perror ("EVIOCSKEYCODE"); - - if(ioctl(fd, EVIOCGKEYCODE, codes)==0) - prtcode(codes); - return 0; - } - - if (argc==3) { - FILE *fin; - int value; - char *scancode, *keycode, s[2048]; - - fin=fopen(argv[2],"r"); - if (fin==NULL) { - perror ("opening keycode file"); - return -1; - } - - /* Clears old table */ - for (j = 0; j < 256; j++) { - for (i = 0; i < 256; i++) { - codes[0] = (j << 8) | i; - codes[1] = KEY_RESERVED; - ioctl(fd, EVIOCSKEYCODE, codes); - } - } - - while (fgets(s,sizeof(s),fin)) { - scancode=strtok(s,"\\n\\t =:"); - if (!scancode) { - perror ("parsing input file scancode"); - return -1; - } - if (!strcasecmp(scancode, "scancode")) { - scancode = strtok(NULL,"\\n\\t =:"); - if (!scancode) { - perror ("parsing input file scancode"); - return -1; - } - } - - keycode=strtok(NULL,"\\n\\t =:("); - if (!keycode) { - perror ("parsing input file keycode"); - return -1; - } - - // printf ("parsing %s=%s:", scancode, keycode); - value=parse_code(keycode); - // printf ("\\tvalue=%d\\n",value); - - if (value==-1) { - value = strtol(keycode, NULL, 0); - if (errno) - perror("value"); - } - - codes [0] = (unsigned) strtol(scancode, NULL, 0); - codes [1] = (unsigned) value; - - // printf("\\t%04x=%04x\\n",codes[0], codes[1]); - if(ioctl(fd, EVIOCSKEYCODE, codes)) { - fprintf(stderr, "Setting scancode 0x%04x with 0x%04x via ",codes[0], codes[1]); - perror ("EVIOCSKEYCODE"); - } - - if(ioctl(fd, EVIOCGKEYCODE, codes)==0) - prtcode(codes); - } - return 0; - } - - /* Get scancode table */ - for (j = 0; j < 256; j++) { - for (i = 0; i < 256; i++) { - codes[0] = (j << 8) | i; - if (!ioctl(fd, EVIOCGKEYCODE, codes) && codes[1] != KEY_RESERVED) - prtcode(codes); - } - } - return 0; - } diff --git a/Documentation/linux_tv/media/rc/lirc_dev_intro.rst b/Documentation/linux_tv/media/rc/lirc_dev_intro.rst deleted file mode 100644 index 9a784c8fe4ea..000000000000 --- a/Documentation/linux_tv/media/rc/lirc_dev_intro.rst +++ /dev/null @@ -1,28 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _lirc_dev_intro: - -************ -Introduction -************ - -The LIRC device interface is a bi-directional interface for transporting -raw IR data between userspace and kernelspace. Fundamentally, it is just -a chardev (/dev/lircX, for X = 0, 1, 2, ...), with a number of standard -struct file_operations defined on it. With respect to transporting raw -IR data to and fro, the essential fops are read, write and ioctl. - -Example dmesg output upon a driver registering w/LIRC: - -.. code-block:: none - - $ dmesg |grep lirc_dev - lirc_dev: IR Remote Control driver registered, major 248 - rc rc0: lirc_dev: driver ir-lirc-codec (mceusb) registered at minor = 0 - -What you should see for a chardev: - -.. code-block:: none - - $ ls -l /dev/lirc* - crw-rw---- 1 root root 248, 0 Jul 2 22:20 /dev/lirc0 diff --git a/Documentation/linux_tv/media/rc/lirc_device_interface.rst b/Documentation/linux_tv/media/rc/lirc_device_interface.rst deleted file mode 100644 index a0c27ed5ad73..000000000000 --- a/Documentation/linux_tv/media/rc/lirc_device_interface.rst +++ /dev/null @@ -1,15 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _lirc_dev: - -LIRC Device Interface -===================== - - -.. toctree:: - :maxdepth: 1 - - lirc_dev_intro - lirc_read - lirc_write - lirc_ioctl diff --git a/Documentation/linux_tv/media/rc/lirc_ioctl.rst b/Documentation/linux_tv/media/rc/lirc_ioctl.rst deleted file mode 100644 index 916d064476f1..000000000000 --- a/Documentation/linux_tv/media/rc/lirc_ioctl.rst +++ /dev/null @@ -1,156 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _lirc_ioctl: - -************** -LIRC ioctl fop -************** - -The LIRC device's ioctl definition is bound by the ioctl function -definition of struct file_operations, leaving us with an unsigned int -for the ioctl command and an unsigned long for the arg. For the purposes -of ioctl portability across 32-bit and 64-bit, these values are capped -to their 32-bit sizes. - -The following ioctls can be used to change specific hardware settings. -In general each driver should have a default set of settings. The driver -implementation is expected to re-apply the default settings when the -device is closed by user-space, so that every application opening the -device can rely on working with the default settings initially. - -LIRC_GET_FEATURES - Obviously, get the underlying hardware device's features. If a - driver does not announce support of certain features, calling of the - corresponding ioctls is undefined. - -LIRC_GET_SEND_MODE - Get supported transmit mode. Only LIRC_MODE_PULSE is supported by - lircd. - -LIRC_GET_REC_MODE - Get supported receive modes. Only LIRC_MODE_MODE2 and - LIRC_MODE_LIRCCODE are supported by lircd. - -LIRC_GET_SEND_CARRIER - Get carrier frequency (in Hz) currently used for transmit. - -LIRC_GET_REC_CARRIER - Get carrier frequency (in Hz) currently used for IR reception. - -LIRC_{G,S}ET_{SEND,REC}_DUTY_CYCLE - Get/set the duty cycle (from 0 to 100) of the carrier signal. - Currently, no special meaning is defined for 0 or 100, but this - could be used to switch off carrier generation in the future, so - these values should be reserved. - -LIRC_GET_REC_RESOLUTION - Some receiver have maximum resolution which is defined by internal - sample rate or data format limitations. E.g. it's common that - signals can only be reported in 50 microsecond steps. This integer - value is used by lircd to automatically adjust the aeps tolerance - value in the lircd config file. - -LIRC_GET_M{IN,AX}_TIMEOUT - Some devices have internal timers that can be used to detect when - there's no IR activity for a long time. This can help lircd in - detecting that a IR signal is finished and can speed up the decoding - process. Returns an integer value with the minimum/maximum timeout - that can be set. Some devices have a fixed timeout, in that case - both ioctls will return the same value even though the timeout - cannot be changed. - -LIRC_GET_M{IN,AX}_FILTER_{PULSE,SPACE} - Some devices are able to filter out spikes in the incoming signal - using given filter rules. These ioctls return the hardware - capabilities that describe the bounds of the possible filters. - Filter settings depend on the IR protocols that are expected. lircd - derives the settings from all protocols definitions found in its - config file. - -LIRC_GET_LENGTH - Retrieves the code length in bits (only for LIRC_MODE_LIRCCODE). - Reads on the device must be done in blocks matching the bit count. - The bit could should be rounded up so that it matches full bytes. - -LIRC_SET_{SEND,REC}_MODE - Set send/receive mode. Largely obsolete for send, as only - LIRC_MODE_PULSE is supported. - -LIRC_SET_{SEND,REC}_CARRIER - Set send/receive carrier (in Hz). - -LIRC_SET_TRANSMITTER_MASK - This enables the given set of transmitters. The first transmitter is - encoded by the least significant bit, etc. When an invalid bit mask - is given, i.e. a bit is set, even though the device does not have so - many transitters, then this ioctl returns the number of available - transitters and does nothing otherwise. - -LIRC_SET_REC_TIMEOUT - Sets the integer value for IR inactivity timeout (cf. - LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT). A value of 0 - (if supported by the hardware) disables all hardware timeouts and - data should be reported as soon as possible. If the exact value - cannot be set, then the next possible value _greater_ than the - given value should be set. - -LIRC_SET_REC_TIMEOUT_REPORTS - Enable (1) or disable (0) timeout reports in LIRC_MODE_MODE2. By - default, timeout reports should be turned off. - -LIRC_SET_REC_FILTER_{,PULSE,SPACE} - Pulses/spaces shorter than this are filtered out by hardware. If - filters cannot be set independently for pulse/space, the - corresponding ioctls must return an error and LIRC_SET_REC_FILTER - shall be used instead. - -LIRC_SET_MEASURE_CARRIER_MODE - Enable (1)/disable (0) measure mode. If enabled, from the next key - press on, the driver will send LIRC_MODE2_FREQUENCY packets. By - default this should be turned off. - -LIRC_SET_REC_{DUTY_CYCLE,CARRIER}_RANGE - To set a range use - LIRC_SET_REC_DUTY_CYCLE_RANGE/LIRC_SET_REC_CARRIER_RANGE - with the lower bound first and later - LIRC_SET_REC_DUTY_CYCLE/LIRC_SET_REC_CARRIER with the upper - bound. - -LIRC_NOTIFY_DECODE - This ioctl is called by lircd whenever a successful decoding of an - incoming IR signal could be done. This can be used by supporting - hardware to give visual feedback to the user e.g. by flashing a LED. - -LIRC_SETUP_{START,END} - Setting of several driver parameters can be optimized by - encapsulating the according ioctl calls with - LIRC_SETUP_START/LIRC_SETUP_END. When a driver receives a - LIRC_SETUP_START ioctl it can choose to not commit further setting - changes to the hardware until a LIRC_SETUP_END is received. But - this is open to the driver implementation and every driver must also - handle parameter changes which are not encapsulated by - LIRC_SETUP_START and LIRC_SETUP_END. Drivers can also choose to - ignore these ioctls. - -LIRC_SET_WIDEBAND_RECEIVER - Some receivers are equipped with special wide band receiver which is - intended to be used to learn output of existing remote. Calling that - ioctl with (1) will enable it, and with (0) disable it. This might - be useful of receivers that have otherwise narrow band receiver that - prevents them to be used with some remotes. Wide band receiver might - also be more precise On the other hand its disadvantage it usually - reduced range of reception. Note: wide band receiver might be - implictly enabled if you enable carrier reports. In that case it - will be disabled as soon as you disable carrier reports. Trying to - disable wide band receiver while carrier reports are active will do - nothing. - - -.. _lirc_dev_errors: - -Return Value -============ - -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the -:ref:`Generic Error Codes ` chapter. diff --git a/Documentation/linux_tv/media/rc/lirc_read.rst b/Documentation/linux_tv/media/rc/lirc_read.rst deleted file mode 100644 index b0b76c3d1d9a..000000000000 --- a/Documentation/linux_tv/media/rc/lirc_read.rst +++ /dev/null @@ -1,19 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _lirc_read: - -************* -LIRC read fop -************* - -The lircd userspace daemon reads raw IR data from the LIRC chardev. The -exact format of the data depends on what modes a driver supports, and -what mode has been selected. lircd obtains supported modes and sets the -active mode via the ioctl interface, detailed at :ref:`lirc_ioctl`. -The generally preferred mode is LIRC_MODE_MODE2, in which packets -containing an int value describing an IR signal are read from the -chardev. - -See also -`http://www.lirc.org/html/technical.html `__ -for more info. diff --git a/Documentation/linux_tv/media/rc/lirc_write.rst b/Documentation/linux_tv/media/rc/lirc_write.rst deleted file mode 100644 index d19cb486ecc9..000000000000 --- a/Documentation/linux_tv/media/rc/lirc_write.rst +++ /dev/null @@ -1,14 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _lirc_write: - -************** -LIRC write fop -************** - -The data written to the chardev is a pulse/space sequence of integer -values. Pulses and spaces are only marked implicitly by their position. -The data must start and end with a pulse, therefore, the data must -always include an uneven number of samples. The write function must -block until the data has been transmitted by the hardware. If more data -is provided than the hardware can send, the driver returns ``EINVAL``. diff --git a/Documentation/linux_tv/media/rc/remote_controllers.rst b/Documentation/linux_tv/media/rc/remote_controllers.rst deleted file mode 100644 index bccceb1e28c3..000000000000 --- a/Documentation/linux_tv/media/rc/remote_controllers.rst +++ /dev/null @@ -1,52 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. include:: - -.. _remotes: - -##################### -Remote Controller API -##################### - -.. _remote_controllers: - -****************** -Remote Controllers -****************** - - -.. toctree:: - :maxdepth: 1 - :numbered: - - Remote_controllers_Intro - remote_controllers_sysfs_nodes - Remote_controllers_tables - Remote_controllers_table_change - lirc_device_interface - - -********************** -Revision and Copyright -********************** - -Authors: - -- Carvalho Chehab, Mauro - - - Initial version. - -**Copyright** |copy| 2009-2016 : Mauro Carvalho Chehab - -**************** -Revision History -**************** - -:revision: 3.15 / 2014-02-06 (*mcc*) - -Added the interface description and the RC sysfs class description. - - -:revision: 1.0 / 2009-09-06 (*mcc*) - -Initial revision diff --git a/Documentation/linux_tv/media/rc/remote_controllers_sysfs_nodes.rst b/Documentation/linux_tv/media/rc/remote_controllers_sysfs_nodes.rst deleted file mode 100644 index 6fb944fe21fd..000000000000 --- a/Documentation/linux_tv/media/rc/remote_controllers_sysfs_nodes.rst +++ /dev/null @@ -1,143 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _remote_controllers_sysfs_nodes: - -******************************* -Remote Controller's sysfs nodes -******************************* - -As defined at ``Documentation/ABI/testing/sysfs-class-rc``, those are -the sysfs nodes that control the Remote Controllers: - - -.. _sys_class_rc: - -/sys/class/rc/ -============== - -The ``/sys/class/rc/`` class sub-directory belongs to the Remote -Controller core and provides a sysfs interface for configuring infrared -remote controller receivers. - - -.. _sys_class_rc_rcN: - -/sys/class/rc/rcN/ -================== - -A ``/sys/class/rc/rcN`` directory is created for each remote control -receiver device where N is the number of the receiver. - - -.. _sys_class_rc_rcN_protocols: - -/sys/class/rc/rcN/protocols -=========================== - -Reading this file returns a list of available protocols, something like: - -``rc5 [rc6] nec jvc [sony]`` - -Enabled protocols are shown in [] brackets. - -Writing "+proto" will add a protocol to the list of enabled protocols. - -Writing "-proto" will remove a protocol from the list of enabled -protocols. - -Writing "proto" will enable only "proto". - -Writing "none" will disable all protocols. - -Write fails with ``EINVAL`` if an invalid protocol combination or unknown -protocol name is used. - - -.. _sys_class_rc_rcN_filter: - -/sys/class/rc/rcN/filter -======================== - -Sets the scancode filter expected value. - -Use in combination with ``/sys/class/rc/rcN/filter_mask`` to set the -expected value of the bits set in the filter mask. If the hardware -supports it then scancodes which do not match the filter will be -ignored. Otherwise the write will fail with an error. - -This value may be reset to 0 if the current protocol is altered. - - -.. _sys_class_rc_rcN_filter_mask: - -/sys/class/rc/rcN/filter_mask -============================= - -Sets the scancode filter mask of bits to compare. Use in combination -with ``/sys/class/rc/rcN/filter`` to set the bits of the scancode which -should be compared against the expected value. A value of 0 disables the -filter to allow all valid scancodes to be processed. - -If the hardware supports it then scancodes which do not match the filter -will be ignored. Otherwise the write will fail with an error. - -This value may be reset to 0 if the current protocol is altered. - - -.. _sys_class_rc_rcN_wakeup_protocols: - -/sys/class/rc/rcN/wakeup_protocols -================================== - -Reading this file returns a list of available protocols to use for the -wakeup filter, something like: - -``rc5 rc6 nec jvc [sony]`` - -The enabled wakeup protocol is shown in [] brackets. - -Writing "+proto" will add a protocol to the list of enabled wakeup -protocols. - -Writing "-proto" will remove a protocol from the list of enabled wakeup -protocols. - -Writing "proto" will use "proto" for wakeup events. - -Writing "none" will disable wakeup. - -Write fails with ``EINVAL`` if an invalid protocol combination or unknown -protocol name is used, or if wakeup is not supported by the hardware. - - -.. _sys_class_rc_rcN_wakeup_filter: - -/sys/class/rc/rcN/wakeup_filter -=============================== - -Sets the scancode wakeup filter expected value. Use in combination with -``/sys/class/rc/rcN/wakeup_filter_mask`` to set the expected value of -the bits set in the wakeup filter mask to trigger a system wake event. - -If the hardware supports it and wakeup_filter_mask is not 0 then -scancodes which match the filter will wake the system from e.g. suspend -to RAM or power off. Otherwise the write will fail with an error. - -This value may be reset to 0 if the wakeup protocol is altered. - - -.. _sys_class_rc_rcN_wakeup_filter_mask: - -/sys/class/rc/rcN/wakeup_filter_mask -==================================== - -Sets the scancode wakeup filter mask of bits to compare. Use in -combination with ``/sys/class/rc/rcN/wakeup_filter`` to set the bits of -the scancode which should be compared against the expected value to -trigger a system wake event. - -If the hardware supports it and wakeup_filter_mask is not 0 then -scancodes which match the filter will wake the system from e.g. suspend -to RAM or power off. Otherwise the write will fail with an error. - -This value may be reset to 0 if the wakeup protocol is altered. diff --git a/Documentation/linux_tv/media/v4l/app-pri.rst b/Documentation/linux_tv/media/v4l/app-pri.rst deleted file mode 100644 index a8c41a7ec396..000000000000 --- a/Documentation/linux_tv/media/v4l/app-pri.rst +++ /dev/null @@ -1,30 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _app-pri: - -******************** -Application Priority -******************** - -When multiple applications share a device it may be desirable to assign -them different priorities. Contrary to the traditional "rm -rf /" school -of thought a video recording application could for example block other -applications from changing video controls or switching the current TV -channel. Another objective is to permit low priority applications -working in background, which can be preempted by user controlled -applications and automatically regain control of the device at a later -time. - -Since these features cannot be implemented entirely in user space V4L2 -defines the :ref:`VIDIOC_G_PRIORITY ` and -:ref:`VIDIOC_S_PRIORITY ` ioctls to request and -query the access priority associate with a file descriptor. Opening a -device assigns a medium priority, compatible with earlier versions of -V4L2 and drivers not supporting these ioctls. Applications requiring a -different priority will usually call :ref:`VIDIOC_S_PRIORITY -` after verifying the device with the -:ref:`VIDIOC_QUERYCAP` ioctl. - -Ioctls changing driver properties, such as -:ref:`VIDIOC_S_INPUT `, return an ``EBUSY`` error code -after another application obtained higher priority. diff --git a/Documentation/linux_tv/media/v4l/async.rst b/Documentation/linux_tv/media/v4l/async.rst deleted file mode 100644 index 5affc0adb95b..000000000000 --- a/Documentation/linux_tv/media/v4l/async.rst +++ /dev/null @@ -1,9 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _async: - -**************** -Asynchronous I/O -**************** - -This method is not defined yet. diff --git a/Documentation/linux_tv/media/v4l/audio.rst b/Documentation/linux_tv/media/v4l/audio.rst deleted file mode 100644 index 71502f0bf8bd..000000000000 --- a/Documentation/linux_tv/media/v4l/audio.rst +++ /dev/null @@ -1,90 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _audio: - -************************ -Audio Inputs and Outputs -************************ - -Audio inputs and outputs are physical connectors of a device. Video -capture devices have inputs, output devices have outputs, zero or more -each. Radio devices have no audio inputs or outputs. They have exactly -one tuner which in fact *is* an audio source, but this API associates -tuners with video inputs or outputs only, and radio devices have none of -these. [1]_ A connector on a TV card to loop back the received audio -signal to a sound card is not considered an audio output. - -Audio and video inputs and outputs are associated. Selecting a video -source also selects an audio source. This is most evident when the video -and audio source is a tuner. Further audio connectors can combine with -more than one video input or output. Assumed two composite video inputs -and two audio inputs exist, there may be up to four valid combinations. -The relation of video and audio connectors is defined in the -``audioset`` field of the respective struct -:ref:`v4l2_input ` or struct -:ref:`v4l2_output `, where each bit represents the index -number, starting at zero, of one audio input or output. - -To learn about the number and attributes of the available inputs and -outputs applications can enumerate them with the -:ref:`VIDIOC_ENUMAUDIO` and -:ref:`VIDIOC_ENUMAUDOUT ` ioctl, respectively. -The struct :ref:`v4l2_audio ` returned by the -:ref:`VIDIOC_ENUMAUDIO` ioctl also contains signal -:status information applicable when the current audio input is queried. - -The :ref:`VIDIOC_G_AUDIO ` and -:ref:`VIDIOC_G_AUDOUT ` ioctls report the current -audio input and output, respectively. Note that, unlike -:ref:`VIDIOC_G_INPUT ` and -:ref:`VIDIOC_G_OUTPUT ` these ioctls return a -structure as :ref:`VIDIOC_ENUMAUDIO` and -:ref:`VIDIOC_ENUMAUDOUT ` do, not just an index. - -To select an audio input and change its properties applications call the -:ref:`VIDIOC_S_AUDIO ` ioctl. To select an audio -output (which presently has no changeable properties) applications call -the :ref:`VIDIOC_S_AUDOUT ` ioctl. - -Drivers must implement all audio input ioctls when the device has -multiple selectable audio inputs, all audio output ioctls when the -device has multiple selectable audio outputs. When the device has any -audio inputs or outputs the driver must set the ``V4L2_CAP_AUDIO`` flag -in the struct :ref:`v4l2_capability ` returned by -the :ref:`VIDIOC_QUERYCAP` ioctl. - - -.. code-block:: c - :caption: Example 1.3. Information about the current audio input - - struct v4l2_audio audio; - - memset(&audio, 0, sizeof(audio)); - - if (-1 == ioctl(fd, VIDIOC_G_AUDIO, &audio)) { - perror("VIDIOC_G_AUDIO"); - exit(EXIT_FAILURE); - } - - printf("Current input: %s\\n", audio.name); - - -.. code-block:: c - :caption: Example 1.4. Switching to the first audio input - - struct v4l2_audio audio; - - memset(&audio, 0, sizeof(audio)); /* clear audio.mode, audio.reserved */ - - audio.index = 0; - - if (-1 == ioctl(fd, VIDIOC_S_AUDIO, &audio)) { - perror("VIDIOC_S_AUDIO"); - exit(EXIT_FAILURE); - } - -.. [1] - Actually struct :ref:`v4l2_audio ` ought to have a - ``tuner`` field like struct :ref:`v4l2_input `, not - only making the API more consistent but also permitting radio devices - with multiple tuners. diff --git a/Documentation/linux_tv/media/v4l/biblio.rst b/Documentation/linux_tv/media/v4l/biblio.rst deleted file mode 100644 index e911df972d40..000000000000 --- a/Documentation/linux_tv/media/v4l/biblio.rst +++ /dev/null @@ -1,381 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -********** -References -********** - - -.. _cea608: - -CEA 608-E -========= - - -:title: CEA-608-E R-2014 "Line 21 Data Services" - -:author: Consumer Electronics Association (http://www.ce.org) - -.. _en300294: - -EN 300 294 -========== - - -:title: EN 300 294 "625-line television Wide Screen Signalling (WSS)" - -:author: European Telecommunication Standards Institute (http://www.etsi.org) - -.. _ets300231: - -ETS 300 231 -=========== - - -:title: ETS 300 231 "Specification of the domestic video Programme Delivery Control system (PDC)" - -:author: European Telecommunication Standards Institute (http://www.etsi.org) - -.. _ets300706: - -ETS 300 706 -=========== - - -:title: ETS 300 706 "Enhanced Teletext specification" - -:author: European Telecommunication Standards Institute (http://www.etsi.org) - -.. _mpeg2part1: - -ISO 13818-1 -=========== - - -:title: ITU-T Rec. H.222.0 | ISO/IEC 13818-1 "Information technology — Generic coding of moving pictures and associated audio information: Systems" - -:author: International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch) - -.. _mpeg2part2: - -ISO 13818-2 -=========== - - -:title: ITU-T Rec. H.262 | ISO/IEC 13818-2 "Information technology — Generic coding of moving pictures and associated audio information: Video" - -:author: International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch) - -.. _itu470: - -ITU BT.470 -========== - - -:title: ITU-R Recommendation BT.470-6 "Conventional Television Systems" - -:author: International Telecommunication Union (http://www.itu.ch) - -.. _itu601: - -ITU BT.601 -========== - - -:title: ITU-R Recommendation BT.601-5 "Studio Encoding Parameters of Digital Television for Standard 4:3 and Wide-Screen 16:9 Aspect Ratios" - -:author: International Telecommunication Union (http://www.itu.ch) - -.. _itu653: - -ITU BT.653 -========== - - -:title: ITU-R Recommendation BT.653-3 "Teletext systems" - -:author: International Telecommunication Union (http://www.itu.ch) - -.. _itu709: - -ITU BT.709 -========== - - -:title: ITU-R Recommendation BT.709-5 "Parameter values for the HDTV standards for production and international programme exchange" - -:author: International Telecommunication Union (http://www.itu.ch) - -.. _itu1119: - -ITU BT.1119 -=========== - - -:title: ITU-R Recommendation BT.1119 "625-line television Wide Screen Signalling (WSS)" - -:author: International Telecommunication Union (http://www.itu.ch) - -.. _jfif: - -JFIF -==== - - -:title: JPEG File Interchange Format -:subtitle: Version 1.02 - -:author: Independent JPEG Group (http://www.ijg.org) - -.. _itu-t81: - -ITU-T.81 -======== - - -:title: ITU-T Recommendation T.81 "Information Technology — Digital Compression and Coding of Continous-Tone Still Images — Requirements and Guidelines" - -:author: International Telecommunication Union (http://www.itu.int) - -.. _w3c-jpeg-jfif: - -W3C JPEG JFIF -============= - - -:title: JPEG JFIF - -:author: The World Wide Web Consortium (http://www.w3.org) - -.. _smpte12m: - -SMPTE 12M -========= - - -:title: SMPTE 12M-1999 "Television, Audio and Film - Time and Control Code" - -:author: Society of Motion Picture and Television Engineers (http://www.smpte.org) - -.. _smpte170m: - -SMPTE 170M -========== - - -:title: SMPTE 170M-1999 "Television - Composite Analog Video Signal - NTSC for Studio Applications" - -:author: Society of Motion Picture and Television Engineers (http://www.smpte.org) - -.. _smpte240m: - -SMPTE 240M -========== - - -:title: SMPTE 240M-1999 "Television - Signal Parameters - 1125-Line High-Definition Production" - -:author: Society of Motion Picture and Television Engineers (http://www.smpte.org) - -.. _smpte431: - -SMPTE RP 431-2 -============== - - -:title: SMPTE RP 431-2:2011 "D-Cinema Quality - Reference Projector and Environment" - -:author: Society of Motion Picture and Television Engineers (http://www.smpte.org) - -.. _smpte2084: - -SMPTE ST 2084 -============= - - -:title: SMPTE ST 2084:2014 "High Dynamic Range Electro-Optical Transfer Function of Master Reference Displays" - -:author: Society of Motion Picture and Television Engineers (http://www.smpte.org) - -.. _srgb: - -sRGB -==== - - -:title: IEC 61966-2-1 ed1.0 "Multimedia systems and equipment - Colour measurement and management - Part 2-1: Colour management - Default RGB colour space - sRGB" - -:author: International Electrotechnical Commission (http://www.iec.ch) - -.. _sycc: - -sYCC -==== - - -:title: IEC 61966-2-1-am1 ed1.0 "Amendment 1 - Multimedia systems and equipment - Colour measurement and management - Part 2-1: Colour management - Default RGB colour space - sRGB" - -:author: International Electrotechnical Commission (http://www.iec.ch) - -.. _xvycc: - -xvYCC -===== - - -:title: IEC 61966-2-4 ed1.0 "Multimedia systems and equipment - Colour measurement and management - Part 2-4: Colour management - Extended-gamut YCC colour space for video applications - xvYCC" - -:author: International Electrotechnical Commission (http://www.iec.ch) - -.. _adobergb: - -AdobeRGB -======== - - -:title: Adobe© RGB (1998) Color Image Encoding Version 2005-05 - -:author: Adobe Systems Incorporated (http://www.adobe.com) - -.. _oprgb: - -opRGB -===== - - -:title: IEC 61966-2-5 "Multimedia systems and equipment - Colour measurement and management - Part 2-5: Colour management - Optional RGB colour space - opRGB" - -:author: International Electrotechnical Commission (http://www.iec.ch) - -.. _itu2020: - -ITU BT.2020 -=========== - - -:title: ITU-R Recommendation BT.2020 (08/2012) "Parameter values for ultra-high definition television systems for production and international programme exchange" - -:author: International Telecommunication Union (http://www.itu.ch) - -.. _tech3213: - -EBU Tech 3213 -============= - - -:title: E.B.U. Standard for Chromaticity Tolerances for Studio Monitors" - -:author: European Broadcast Union (http://www.ebu.ch) - -.. _iec62106: - -IEC 62106 -========= - - -:title: Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 to 108,0 MHz - -:author: International Electrotechnical Commission (http://www.iec.ch) - -.. _nrsc4: - -NRSC-4-B -======== - - -:title: NRSC-4-B: United States RBDS Standard - -:author: National Radio Systems Committee (http://www.nrscstandards.org) - -.. _iso12232: - -ISO 12232:2006 -============== - - -:title: Photography — Digital still cameras — Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index - -:author: International Organization for Standardization (http://www.iso.org) - -.. _cea861: - -CEA-861-E -========= - - -:title: A DTV Profile for Uncompressed High Speed Digital Interfaces - -:author: Consumer Electronics Association (http://www.ce.org) - -.. _vesadmt: - -VESA DMT -======== - - -:title: VESA and Industry Standards and Guidelines for Computer Display Monitor Timing (DMT) - -:author: Video Electronics Standards Association (http://www.vesa.org) - -.. _vesaedid: - -EDID -==== - - -:title: VESA Enhanced Extended Display Identification Data Standard -:subtitle: Release A, Revision 2 - -:author: Video Electronics Standards Association (http://www.vesa.org) - -.. _hdcp: - -HDCP -==== - - -:title: High-bandwidth Digital Content Protection System -:subtitle: Revision 1.3 - -:author: Digital Content Protection LLC (http://www.digital-cp.com) - -.. _hdmi: - -HDMI -==== - - -:title: High-Definition Multimedia Interface -:subtitle: Specification Version 1.4a - -:author: HDMI Licensing LLC (http://www.hdmi.org) - -.. _dp: - -DP -== - - -:title: VESA DisplayPort Standard -:subtitle: Version 1, Revision 2 - -:author: Video Electronics Standards Association (http://www.vesa.org) - -.. _poynton: - -poynton -======= - - -:title: Digital Video and HDTV, Algorithms and Interfaces - -:author: Charles Poynton - -.. _colimg: - -colimg -====== - - -:title: Color Imaging: Fundamentals and Applications - -:author: Erik Reinhard et al. diff --git a/Documentation/linux_tv/media/v4l/buffer.rst b/Documentation/linux_tv/media/v4l/buffer.rst deleted file mode 100644 index b195eb5b63a1..000000000000 --- a/Documentation/linux_tv/media/v4l/buffer.rst +++ /dev/null @@ -1,979 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _buffer: - -******* -Buffers -******* - -A buffer contains data exchanged by application and driver using one of -the Streaming I/O methods. In the multi-planar API, the data is held in -planes, while the buffer structure acts as a container for the planes. -Only pointers to buffers (planes) are exchanged, the data itself is not -copied. These pointers, together with meta-information like timestamps -or field parity, are stored in a struct :ref:`struct v4l2_buffer `, -argument to the :ref:`VIDIOC_QUERYBUF`, -:ref:`VIDIOC_QBUF` and -:ref:`VIDIOC_DQBUF ` ioctl. In the multi-planar API, -some plane-specific members of struct :ref:`struct v4l2_buffer `, -such as pointers and sizes for each plane, are stored in struct -:ref:`struct v4l2_plane ` instead. In that case, struct -:ref:`struct v4l2_buffer ` contains an array of plane structures. - -Dequeued video buffers come with timestamps. The driver decides at which -part of the frame and with which clock the timestamp is taken. Please -see flags in the masks ``V4L2_BUF_FLAG_TIMESTAMP_MASK`` and -``V4L2_BUF_FLAG_TSTAMP_SRC_MASK`` in :ref:`buffer-flags`. These flags -are always valid and constant across all buffers during the whole video -stream. Changes in these flags may take place as a side effect of -:ref:`VIDIOC_S_INPUT ` or -:ref:`VIDIOC_S_OUTPUT ` however. The -``V4L2_BUF_FLAG_TIMESTAMP_COPY`` timestamp type which is used by e.g. on -mem-to-mem devices is an exception to the rule: the timestamp source -flags are copied from the OUTPUT video buffer to the CAPTURE video -buffer. - - -.. _v4l2-buffer: - -struct v4l2_buffer -================== - -.. flat-table:: struct v4l2_buffer - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 1 2 - - - - .. row 1 - - - __u32 - - - ``index`` - - - - - Number of the buffer, set by the application except when calling - :ref:`VIDIOC_DQBUF `, then it is set by the - driver. This field can range from zero to the number of buffers - allocated with the :ref:`VIDIOC_REQBUFS` ioctl - (struct :ref:`v4l2_requestbuffers ` - ``count``), plus any buffers allocated with - :ref:`VIDIOC_CREATE_BUFS` minus one. - - - .. row 2 - - - __u32 - - - ``type`` - - - - - Type of the buffer, same as struct - :ref:`v4l2_format ` ``type`` or struct - :ref:`v4l2_requestbuffers ` ``type``, set - by the application. See :ref:`v4l2-buf-type` - - - .. row 3 - - - __u32 - - - ``bytesused`` - - - - - The number of bytes occupied by the data in the buffer. It depends - on the negotiated data format and may change with each buffer for - compressed variable size data like JPEG images. Drivers must set - this field when ``type`` refers to a capture stream, applications - when it refers to an output stream. If the application sets this - to 0 for an output stream, then ``bytesused`` will be set to the - size of the buffer (see the ``length`` field of this struct) by - the driver. For multiplanar formats this field is ignored and the - ``planes`` pointer is used instead. - - - .. row 4 - - - __u32 - - - ``flags`` - - - - - Flags set by the application or driver, see :ref:`buffer-flags`. - - - .. row 5 - - - __u32 - - - ``field`` - - - - - Indicates the field order of the image in the buffer, see - :ref:`v4l2-field`. This field is not used when the buffer - contains VBI data. Drivers must set it when ``type`` refers to a - capture stream, applications when it refers to an output stream. - - - .. row 6 - - - struct timeval - - - ``timestamp`` - - - - - For capture streams this is time when the first data byte was - captured, as returned by the :c:func:`clock_gettime()` function - for the relevant clock id; see ``V4L2_BUF_FLAG_TIMESTAMP_*`` in - :ref:`buffer-flags`. For output streams the driver stores the - time at which the last data byte was actually sent out in the - ``timestamp`` field. This permits applications to monitor the - drift between the video and system clock. For output streams that - use ``V4L2_BUF_FLAG_TIMESTAMP_COPY`` the application has to fill - in the timestamp which will be copied by the driver to the capture - stream. - - - .. row 7 - - - struct :ref:`v4l2_timecode ` - - - ``timecode`` - - - - - When ``type`` is ``V4L2_BUF_TYPE_VIDEO_CAPTURE`` and the - ``V4L2_BUF_FLAG_TIMECODE`` flag is set in ``flags``, this - structure contains a frame timecode. In - :ref:`V4L2_FIELD_ALTERNATE ` mode the top and - bottom field contain the same timecode. Timecodes are intended to - help video editing and are typically recorded on video tapes, but - also embedded in compressed formats like MPEG. This field is - independent of the ``timestamp`` and ``sequence`` fields. - - - .. row 8 - - - __u32 - - - ``sequence`` - - - - - Set by the driver, counting the frames (not fields!) in sequence. - This field is set for both input and output devices. - - - .. row 9 - - - :cspan:`3` - - In :ref:`V4L2_FIELD_ALTERNATE ` mode the top and - bottom field have the same sequence number. The count starts at - zero and includes dropped or repeated frames. A dropped frame was - received by an input device but could not be stored due to lack of - free buffer space. A repeated frame was displayed again by an - output device because the application did not pass new data in - time. - - Note this may count the frames received e.g. over USB, without - taking into account the frames dropped by the remote hardware due - to limited compression throughput or bus bandwidth. These devices - identify by not enumerating any video standards, see - :ref:`standard`. - - - .. row 10 - - - __u32 - - - ``memory`` - - - - - This field must be set by applications and/or drivers in - accordance with the selected I/O method. See :ref:`v4l2-memory` - - - .. row 11 - - - union - - - ``m`` - - - .. row 12 - - - - - __u32 - - - ``offset`` - - - For the single-planar API and when ``memory`` is - ``V4L2_MEMORY_MMAP`` this is the offset of the buffer from the - start of the device memory. The value is returned by the driver - and apart of serving as parameter to the - :ref:`mmap() ` function not useful for applications. - See :ref:`mmap` for details - - - .. row 13 - - - - - unsigned long - - - ``userptr`` - - - For the single-planar API and when ``memory`` is - ``V4L2_MEMORY_USERPTR`` this is a pointer to the buffer (casted to - unsigned long type) in virtual memory, set by the application. See - :ref:`userp` for details. - - - .. row 14 - - - - - struct v4l2_plane - - - ``*planes`` - - - When using the multi-planar API, contains a userspace pointer to - an array of struct :ref:`v4l2_plane `. The size of - the array should be put in the ``length`` field of this - :ref:`struct v4l2_buffer ` structure. - - - .. row 15 - - - - - int - - - ``fd`` - - - For the single-plane API and when ``memory`` is - ``V4L2_MEMORY_DMABUF`` this is the file descriptor associated with - a DMABUF buffer. - - - .. row 16 - - - __u32 - - - ``length`` - - - - - Size of the buffer (not the payload) in bytes for the - single-planar API. This is set by the driver based on the calls to - :ref:`VIDIOC_REQBUFS` and/or - :ref:`VIDIOC_CREATE_BUFS`. For the - multi-planar API the application sets this to the number of - elements in the ``planes`` array. The driver will fill in the - actual number of valid elements in that array. - - - .. row 17 - - - __u32 - - - ``reserved2`` - - - - - A place holder for future extensions. Drivers and applications - must set this to 0. - - - .. row 18 - - - __u32 - - - ``reserved`` - - - - - A place holder for future extensions. Drivers and applications - must set this to 0. - - - -.. _v4l2-plane: - -struct v4l2_plane -================= - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 1 2 - - - - .. row 1 - - - __u32 - - - ``bytesused`` - - - - - The number of bytes occupied by data in the plane (its payload). - Drivers must set this field when ``type`` refers to a capture - stream, applications when it refers to an output stream. If the - application sets this to 0 for an output stream, then - ``bytesused`` will be set to the size of the plane (see the - ``length`` field of this struct) by the driver. Note that the - actual image data starts at ``data_offset`` which may not be 0. - - - .. row 2 - - - __u32 - - - ``length`` - - - - - Size in bytes of the plane (not its payload). This is set by the - driver based on the calls to - :ref:`VIDIOC_REQBUFS` and/or - :ref:`VIDIOC_CREATE_BUFS`. - - - .. row 3 - - - union - - - ``m`` - - - - - - - - .. row 4 - - - - - __u32 - - - ``mem_offset`` - - - When the memory type in the containing struct - :ref:`v4l2_buffer ` is ``V4L2_MEMORY_MMAP``, this - is the value that should be passed to :ref:`mmap() `, - similar to the ``offset`` field in struct - :ref:`v4l2_buffer `. - - - .. row 5 - - - - - unsigned long - - - ``userptr`` - - - When the memory type in the containing struct - :ref:`v4l2_buffer ` is ``V4L2_MEMORY_USERPTR``, - this is a userspace pointer to the memory allocated for this plane - by an application. - - - .. row 6 - - - - - int - - - ``fd`` - - - When the memory type in the containing struct - :ref:`v4l2_buffer ` is ``V4L2_MEMORY_DMABUF``, - this is a file descriptor associated with a DMABUF buffer, similar - to the ``fd`` field in struct :ref:`v4l2_buffer `. - - - .. row 7 - - - __u32 - - - ``data_offset`` - - - - - Offset in bytes to video data in the plane. Drivers must set this - field when ``type`` refers to a capture stream, applications when - it refers to an output stream. Note that data_offset is included - in ``bytesused``. So the size of the image in the plane is - ``bytesused``-``data_offset`` at offset ``data_offset`` from the - start of the plane. - - - .. row 8 - - - __u32 - - - ``reserved[11]`` - - - - - Reserved for future use. Should be zeroed by drivers and - applications. - - - -.. _v4l2-buf-type: - -enum v4l2_buf_type -================== - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 3 1 4 - - - - .. row 1 - - - ``V4L2_BUF_TYPE_VIDEO_CAPTURE`` - - - 1 - - - Buffer of a single-planar video capture stream, see - :ref:`capture`. - - - .. row 2 - - - ``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` - - - 9 - - - Buffer of a multi-planar video capture stream, see - :ref:`capture`. - - - .. row 3 - - - ``V4L2_BUF_TYPE_VIDEO_OUTPUT`` - - - 2 - - - Buffer of a single-planar video output stream, see - :ref:`output`. - - - .. row 4 - - - ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE`` - - - 10 - - - Buffer of a multi-planar video output stream, see :ref:`output`. - - - .. row 5 - - - ``V4L2_BUF_TYPE_VIDEO_OVERLAY`` - - - 3 - - - Buffer for video overlay, see :ref:`overlay`. - - - .. row 6 - - - ``V4L2_BUF_TYPE_VBI_CAPTURE`` - - - 4 - - - Buffer of a raw VBI capture stream, see :ref:`raw-vbi`. - - - .. row 7 - - - ``V4L2_BUF_TYPE_VBI_OUTPUT`` - - - 5 - - - Buffer of a raw VBI output stream, see :ref:`raw-vbi`. - - - .. row 8 - - - ``V4L2_BUF_TYPE_SLICED_VBI_CAPTURE`` - - - 6 - - - Buffer of a sliced VBI capture stream, see :ref:`sliced`. - - - .. row 9 - - - ``V4L2_BUF_TYPE_SLICED_VBI_OUTPUT`` - - - 7 - - - Buffer of a sliced VBI output stream, see :ref:`sliced`. - - - .. row 10 - - - ``V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY`` - - - 8 - - - Buffer for video output overlay (OSD), see :ref:`osd`. - - - .. row 11 - - - ``V4L2_BUF_TYPE_SDR_CAPTURE`` - - - 11 - - - Buffer for Software Defined Radio (SDR) capture stream, see - :ref:`sdr`. - - - .. row 12 - - - ``V4L2_BUF_TYPE_SDR_OUTPUT`` - - - 12 - - - Buffer for Software Defined Radio (SDR) output stream, see - :ref:`sdr`. - - - -.. _buffer-flags: - -Buffer Flags -============ - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 3 1 4 - - - - .. row 1 - - - ``V4L2_BUF_FLAG_MAPPED`` - - - 0x00000001 - - - The buffer resides in device memory and has been mapped into the - application's address space, see :ref:`mmap` for details. - Drivers set or clear this flag when the - :ref:`VIDIOC_QUERYBUF`, - :ref:`VIDIOC_QBUF` or - :ref:`VIDIOC_DQBUF ` ioctl is called. Set by the - driver. - - - .. row 2 - - - ``V4L2_BUF_FLAG_QUEUED`` - - - 0x00000002 - - - Internally drivers maintain two buffer queues, an incoming and - outgoing queue. When this flag is set, the buffer is currently on - the incoming queue. It automatically moves to the outgoing queue - after the buffer has been filled (capture devices) or displayed - (output devices). Drivers set or clear this flag when the - ``VIDIOC_QUERYBUF`` ioctl is called. After (successful) calling - the ``VIDIOC_QBUF``\ ioctl it is always set and after - ``VIDIOC_DQBUF`` always cleared. - - - .. row 3 - - - ``V4L2_BUF_FLAG_DONE`` - - - 0x00000004 - - - When this flag is set, the buffer is currently on the outgoing - queue, ready to be dequeued from the driver. Drivers set or clear - this flag when the ``VIDIOC_QUERYBUF`` ioctl is called. After - calling the ``VIDIOC_QBUF`` or ``VIDIOC_DQBUF`` it is always - cleared. Of course a buffer cannot be on both queues at the same - time, the ``V4L2_BUF_FLAG_QUEUED`` and ``V4L2_BUF_FLAG_DONE`` flag - are mutually exclusive. They can be both cleared however, then the - buffer is in "dequeued" state, in the application domain so to - say. - - - .. row 4 - - - ``V4L2_BUF_FLAG_ERROR`` - - - 0x00000040 - - - When this flag is set, the buffer has been dequeued successfully, - although the data might have been corrupted. This is recoverable, - streaming may continue as normal and the buffer may be reused - normally. Drivers set this flag when the ``VIDIOC_DQBUF`` ioctl is - called. - - - .. row 5 - - - ``V4L2_BUF_FLAG_KEYFRAME`` - - - 0x00000008 - - - Drivers set or clear this flag when calling the ``VIDIOC_DQBUF`` - ioctl. It may be set by video capture devices when the buffer - contains a compressed image which is a key frame (or field), i. e. - can be decompressed on its own. Also known as an I-frame. - Applications can set this bit when ``type`` refers to an output - stream. - - - .. row 6 - - - ``V4L2_BUF_FLAG_PFRAME`` - - - 0x00000010 - - - Similar to ``V4L2_BUF_FLAG_KEYFRAME`` this flags predicted frames - or fields which contain only differences to a previous key frame. - Applications can set this bit when ``type`` refers to an output - stream. - - - .. row 7 - - - ``V4L2_BUF_FLAG_BFRAME`` - - - 0x00000020 - - - Similar to ``V4L2_BUF_FLAG_KEYFRAME`` this flags a bi-directional - predicted frame or field which contains only the differences - between the current frame and both the preceding and following key - frames to specify its content. Applications can set this bit when - ``type`` refers to an output stream. - - - .. row 8 - - - ``V4L2_BUF_FLAG_TIMECODE`` - - - 0x00000100 - - - The ``timecode`` field is valid. Drivers set or clear this flag - when the ``VIDIOC_DQBUF`` ioctl is called. Applications can set - this bit and the corresponding ``timecode`` structure when - ``type`` refers to an output stream. - - - .. row 9 - - - ``V4L2_BUF_FLAG_PREPARED`` - - - 0x00000400 - - - The buffer has been prepared for I/O and can be queued by the - application. Drivers set or clear this flag when the - :ref:`VIDIOC_QUERYBUF`, - :ref:`VIDIOC_PREPARE_BUF `, - :ref:`VIDIOC_QBUF` or - :ref:`VIDIOC_DQBUF ` ioctl is called. - - - .. row 10 - - - ``V4L2_BUF_FLAG_NO_CACHE_INVALIDATE`` - - - 0x00000800 - - - Caches do not have to be invalidated for this buffer. Typically - applications shall use this flag if the data captured in the - buffer is not going to be touched by the CPU, instead the buffer - will, probably, be passed on to a DMA-capable hardware unit for - further processing or output. - - - .. row 11 - - - ``V4L2_BUF_FLAG_NO_CACHE_CLEAN`` - - - 0x00001000 - - - Caches do not have to be cleaned for this buffer. Typically - applications shall use this flag for output buffers if the data in - this buffer has not been created by the CPU but by some - DMA-capable unit, in which case caches have not been used. - - - .. row 12 - - - ``V4L2_BUF_FLAG_LAST`` - - - 0x00100000 - - - Last buffer produced by the hardware. mem2mem codec drivers set - this flag on the capture queue for the last buffer when the - :ref:`VIDIOC_QUERYBUF` or - :ref:`VIDIOC_DQBUF ` ioctl is called. Due to - hardware limitations, the last buffer may be empty. In this case - the driver will set the ``bytesused`` field to 0, regardless of - the format. Any Any subsequent call to the - :ref:`VIDIOC_DQBUF ` ioctl will not block anymore, - but return an ``EPIPE`` error code. - - - .. row 13 - - - ``V4L2_BUF_FLAG_TIMESTAMP_MASK`` - - - 0x0000e000 - - - Mask for timestamp types below. To test the timestamp type, mask - out bits not belonging to timestamp type by performing a logical - and operation with buffer flags and timestamp mask. - - - .. row 14 - - - ``V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN`` - - - 0x00000000 - - - Unknown timestamp type. This type is used by drivers before Linux - 3.9 and may be either monotonic (see below) or realtime (wall - clock). Monotonic clock has been favoured in embedded systems - whereas most of the drivers use the realtime clock. Either kinds - of timestamps are available in user space via - :c:func:`clock_gettime(2)` using clock IDs ``CLOCK_MONOTONIC`` - and ``CLOCK_REALTIME``, respectively. - - - .. row 15 - - - ``V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC`` - - - 0x00002000 - - - The buffer timestamp has been taken from the ``CLOCK_MONOTONIC`` - clock. To access the same clock outside V4L2, use - :c:func:`clock_gettime(2)`. - - - .. row 16 - - - ``V4L2_BUF_FLAG_TIMESTAMP_COPY`` - - - 0x00004000 - - - The CAPTURE buffer timestamp has been taken from the corresponding - OUTPUT buffer. This flag applies only to mem2mem devices. - - - .. row 17 - - - ``V4L2_BUF_FLAG_TSTAMP_SRC_MASK`` - - - 0x00070000 - - - Mask for timestamp sources below. The timestamp source defines the - point of time the timestamp is taken in relation to the frame. - Logical 'and' operation between the ``flags`` field and - ``V4L2_BUF_FLAG_TSTAMP_SRC_MASK`` produces the value of the - timestamp source. Applications must set the timestamp source when - ``type`` refers to an output stream and - ``V4L2_BUF_FLAG_TIMESTAMP_COPY`` is set. - - - .. row 18 - - - ``V4L2_BUF_FLAG_TSTAMP_SRC_EOF`` - - - 0x00000000 - - - End Of Frame. The buffer timestamp has been taken when the last - pixel of the frame has been received or the last pixel of the - frame has been transmitted. In practice, software generated - timestamps will typically be read from the clock a small amount of - time after the last pixel has been received or transmitten, - depending on the system and other activity in it. - - - .. row 19 - - - ``V4L2_BUF_FLAG_TSTAMP_SRC_SOE`` - - - 0x00010000 - - - Start Of Exposure. The buffer timestamp has been taken when the - exposure of the frame has begun. This is only valid for the - ``V4L2_BUF_TYPE_VIDEO_CAPTURE`` buffer type. - - - -.. _v4l2-memory: - -enum v4l2_memory -================ - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 3 1 4 - - - - .. row 1 - - - ``V4L2_MEMORY_MMAP`` - - - 1 - - - The buffer is used for :ref:`memory mapping ` I/O. - - - .. row 2 - - - ``V4L2_MEMORY_USERPTR`` - - - 2 - - - The buffer is used for :ref:`user pointer ` I/O. - - - .. row 3 - - - ``V4L2_MEMORY_OVERLAY`` - - - 3 - - - [to do] - - - .. row 4 - - - ``V4L2_MEMORY_DMABUF`` - - - 4 - - - The buffer is used for :ref:`DMA shared buffer ` I/O. - - - -Timecodes -========= - -The :ref:`struct v4l2_timecode ` structure is designed to hold a -:ref:`smpte12m` or similar timecode. (struct -:c:type:`struct timeval` timestamps are stored in struct -:ref:`v4l2_buffer ` field ``timestamp``.) - - -.. _v4l2-timecode: - -struct v4l2_timecode --------------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 1 1 2 - - - - .. row 1 - - - __u32 - - - ``type`` - - - Frame rate the timecodes are based on, see :ref:`timecode-type`. - - - .. row 2 - - - __u32 - - - ``flags`` - - - Timecode flags, see :ref:`timecode-flags`. - - - .. row 3 - - - __u8 - - - ``frames`` - - - Frame count, 0 ... 23/24/29/49/59, depending on the type of - timecode. - - - .. row 4 - - - __u8 - - - ``seconds`` - - - Seconds count, 0 ... 59. This is a binary, not BCD number. - - - .. row 5 - - - __u8 - - - ``minutes`` - - - Minutes count, 0 ... 59. This is a binary, not BCD number. - - - .. row 6 - - - __u8 - - - ``hours`` - - - Hours count, 0 ... 29. This is a binary, not BCD number. - - - .. row 7 - - - __u8 - - - ``userbits``\ [4] - - - The "user group" bits from the timecode. - - - -.. _timecode-type: - -Timecode Types --------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 3 1 4 - - - - .. row 1 - - - ``V4L2_TC_TYPE_24FPS`` - - - 1 - - - 24 frames per second, i. e. film. - - - .. row 2 - - - ``V4L2_TC_TYPE_25FPS`` - - - 2 - - - 25 frames per second, i. e. PAL or SECAM video. - - - .. row 3 - - - ``V4L2_TC_TYPE_30FPS`` - - - 3 - - - 30 frames per second, i. e. NTSC video. - - - .. row 4 - - - ``V4L2_TC_TYPE_50FPS`` - - - 4 - - - - - - .. row 5 - - - ``V4L2_TC_TYPE_60FPS`` - - - 5 - - - - - - -.. _timecode-flags: - -Timecode Flags --------------- - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - :widths: 3 1 4 - - - - .. row 1 - - - ``V4L2_TC_FLAG_DROPFRAME`` - - - 0x0001 - - - Indicates "drop frame" semantics for counting frames in 29.97 fps - material. When set, frame numbers 0 and 1 at the start of each - minute, except minutes 0, 10, 20, 30, 40, 50 are omitted from the - count. - - - .. row 2 - - - ``V4L2_TC_FLAG_COLORFRAME`` - - - 0x0002 - - - The "color frame" flag. - - - .. row 3 - - - ``V4L2_TC_USERBITS_field`` - - - 0x000C - - - Field mask for the "binary group flags". - - - .. row 4 - - - ``V4L2_TC_USERBITS_USERDEFINED`` - - - 0x0000 - - - Unspecified format. - - - .. row 5 - - - ``V4L2_TC_USERBITS_8BITCHARS`` - - - 0x0008 - - - 8-bit ISO characters. diff --git a/Documentation/linux_tv/media/v4l/capture-example.rst b/Documentation/linux_tv/media/v4l/capture-example.rst deleted file mode 100644 index ac1cd057e25b..000000000000 --- a/Documentation/linux_tv/media/v4l/capture-example.rst +++ /dev/null @@ -1,13 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _capture-example: - -********************* -Video Capture Example -********************* - - -.. toctree:: - :maxdepth: 1 - - capture.c diff --git a/Documentation/linux_tv/media/v4l/capture.c.rst b/Documentation/linux_tv/media/v4l/capture.c.rst deleted file mode 100644 index 56525a0fb2fa..000000000000 --- a/Documentation/linux_tv/media/v4l/capture.c.rst +++ /dev/null @@ -1,664 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -file: media/v4l/capture.c -========================= - -.. code-block:: c - - /* - * V4L2 video capture example - * - * This program can be used and distributed without restrictions. - * - * This program is provided with the V4L2 API - * see https://linuxtv.org/docs.php for more information - */ - - #include - #include - #include - #include - - #include /* getopt_long() */ - - #include /* low-level i/o */ - #include - #include - #include - #include - #include - #include - #include - - #include - - #define CLEAR(x) memset(&(x), 0, sizeof(x)) - - enum io_method { - IO_METHOD_READ, - IO_METHOD_MMAP, - IO_METHOD_USERPTR, - }; - - struct buffer { - void *start; - size_t length; - }; - - static char *dev_name; - static enum io_method io = IO_METHOD_MMAP; - static int fd = -1; - struct buffer *buffers; - static unsigned int n_buffers; - static int out_buf; - static int force_format; - static int frame_count = 70; - - static void errno_exit(const char *s) - { - fprintf(stderr, "%s error %d, %s\\n", s, errno, strerror(errno)); - exit(EXIT_FAILURE); - } - - static int xioctl(int fh, int request, void *arg) - { - int r; - - do { - r = ioctl(fh, request, arg); - } while (-1 == r && EINTR == errno); - - return r; - } - - static void process_image(const void *p, int size) - { - if (out_buf) - fwrite(p, size, 1, stdout); - - fflush(stderr); - fprintf(stderr, "."); - fflush(stdout); - } - - static int read_frame(void) - { - struct v4l2_buffer buf; - unsigned int i; - - switch (io) { - case IO_METHOD_READ: - if (-1 == read(fd, buffers[0].start, buffers[0].length)) { - switch (errno) { - case EAGAIN: - return 0; - - case EIO: - /* Could ignore EIO, see spec. */ - - /* fall through */ - - default: - errno_exit("read"); - } - } - - process_image(buffers[0].start, buffers[0].length); - break; - - case IO_METHOD_MMAP: - CLEAR(buf); - - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf.memory = V4L2_MEMORY_MMAP; - - if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) { - switch (errno) { - case EAGAIN: - return 0; - - case EIO: - /* Could ignore EIO, see spec. */ - - /* fall through */ - - default: - errno_exit("VIDIOC_DQBUF"); - } - } - - assert(buf.index < n_buffers); - - process_image(buffers[buf.index].start, buf.bytesused); - - if (-1 == xioctl(fd, VIDIOC_QBUF, &buf)) - errno_exit("VIDIOC_QBUF"); - break; - - case IO_METHOD_USERPTR: - CLEAR(buf); - - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf.memory = V4L2_MEMORY_USERPTR; - - if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) { - switch (errno) { - case EAGAIN: - return 0; - - case EIO: - /* Could ignore EIO, see spec. */ - - /* fall through */ - - default: - errno_exit("VIDIOC_DQBUF"); - } - } - - for (i = 0; i < n_buffers; ++i) - if (buf.m.userptr == (unsigned long)buffers[i].start - && buf.length == buffers[i].length) - break; - - assert(i < n_buffers); - - process_image((void *)buf.m.userptr, buf.bytesused); - - if (-1 == xioctl(fd, VIDIOC_QBUF, &buf)) - errno_exit("VIDIOC_QBUF"); - break; - } - - return 1; - } - - static void mainloop(void) - { - unsigned int count; - - count = frame_count; - - while (count-- > 0) { - for (;;) { - fd_set fds; - struct timeval tv; - int r; - - FD_ZERO(&fds); - FD_SET(fd, &fds); - - /* Timeout. */ - tv.tv_sec = 2; - tv.tv_usec = 0; - - r = select(fd + 1, &fds, NULL, NULL, &tv); - - if (-1 == r) { - if (EINTR == errno) - continue; - errno_exit("select"); - } - - if (0 == r) { - fprintf(stderr, "select timeout\\n"); - exit(EXIT_FAILURE); - } - - if (read_frame()) - break; - /* EAGAIN - continue select loop. */ - } - } - } - - static void stop_capturing(void) - { - enum v4l2_buf_type type; - - switch (io) { - case IO_METHOD_READ: - /* Nothing to do. */ - break; - - case IO_METHOD_MMAP: - case IO_METHOD_USERPTR: - type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (-1 == xioctl(fd, VIDIOC_STREAMOFF, &type)) - errno_exit("VIDIOC_STREAMOFF"); - break; - } - } - - static void start_capturing(void) - { - unsigned int i; - enum v4l2_buf_type type; - - switch (io) { - case IO_METHOD_READ: - /* Nothing to do. */ - break; - - case IO_METHOD_MMAP: - for (i = 0; i < n_buffers; ++i) { - struct v4l2_buffer buf; - - CLEAR(buf); - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf.memory = V4L2_MEMORY_MMAP; - buf.index = i; - - if (-1 == xioctl(fd, VIDIOC_QBUF, &buf)) - errno_exit("VIDIOC_QBUF"); - } - type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (-1 == xioctl(fd, VIDIOC_STREAMON, &type)) - errno_exit("VIDIOC_STREAMON"); - break; - - case IO_METHOD_USERPTR: - for (i = 0; i < n_buffers; ++i) { - struct v4l2_buffer buf; - - CLEAR(buf); - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf.memory = V4L2_MEMORY_USERPTR; - buf.index = i; - buf.m.userptr = (unsigned long)buffers[i].start; - buf.length = buffers[i].length; - - if (-1 == xioctl(fd, VIDIOC_QBUF, &buf)) - errno_exit("VIDIOC_QBUF"); - } - type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (-1 == xioctl(fd, VIDIOC_STREAMON, &type)) - errno_exit("VIDIOC_STREAMON"); - break; - } - } - - static void uninit_device(void) - { - unsigned int i; - - switch (io) { - case IO_METHOD_READ: - free(buffers[0].start); - break; - - case IO_METHOD_MMAP: - for (i = 0; i < n_buffers; ++i) - if (-1 == munmap(buffers[i].start, buffers[i].length)) - errno_exit("munmap"); - break; - - case IO_METHOD_USERPTR: - for (i = 0; i < n_buffers; ++i) - free(buffers[i].start); - break; - } - - free(buffers); - } - - static void init_read(unsigned int buffer_size) - { - buffers = calloc(1, sizeof(*buffers)); - - if (!buffers) { - fprintf(stderr, "Out of memory\\n"); - exit(EXIT_FAILURE); - } - - buffers[0].length = buffer_size; - buffers[0].start = malloc(buffer_size); - - if (!buffers[0].start) { - fprintf(stderr, "Out of memory\\n"); - exit(EXIT_FAILURE); - } - } - - static void init_mmap(void) - { - struct v4l2_requestbuffers req; - - CLEAR(req); - - req.count = 4; - req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - req.memory = V4L2_MEMORY_MMAP; - - if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) { - if (EINVAL == errno) { - fprintf(stderr, "%s does not support " - "memory mappingn", dev_name); - exit(EXIT_FAILURE); - } else { - errno_exit("VIDIOC_REQBUFS"); - } - } - - if (req.count < 2) { - fprintf(stderr, "Insufficient buffer memory on %s\\n", - dev_name); - exit(EXIT_FAILURE); - } - - buffers = calloc(req.count, sizeof(*buffers)); - - if (!buffers) { - fprintf(stderr, "Out of memory\\n"); - exit(EXIT_FAILURE); - } - - for (n_buffers = 0; n_buffers < req.count; ++n_buffers) { - struct v4l2_buffer buf; - - CLEAR(buf); - - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf.memory = V4L2_MEMORY_MMAP; - buf.index = n_buffers; - - if (-1 == xioctl(fd, VIDIOC_QUERYBUF, &buf)) - errno_exit("VIDIOC_QUERYBUF"); - - buffers[n_buffers].length = buf.length; - buffers[n_buffers].start = - mmap(NULL /* start anywhere */, - buf.length, - PROT_READ | PROT_WRITE /* required */, - MAP_SHARED /* recommended */, - fd, buf.m.offset); - - if (MAP_FAILED == buffers[n_buffers].start) - errno_exit("mmap"); - } - } - - static void init_userp(unsigned int buffer_size) - { - struct v4l2_requestbuffers req; - - CLEAR(req); - - req.count = 4; - req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - req.memory = V4L2_MEMORY_USERPTR; - - if (-1 == xioctl(fd, VIDIOC_REQBUFS, &req)) { - if (EINVAL == errno) { - fprintf(stderr, "%s does not support " - "user pointer i/on", dev_name); - exit(EXIT_FAILURE); - } else { - errno_exit("VIDIOC_REQBUFS"); - } - } - - buffers = calloc(4, sizeof(*buffers)); - - if (!buffers) { - fprintf(stderr, "Out of memory\\n"); - exit(EXIT_FAILURE); - } - - for (n_buffers = 0; n_buffers < 4; ++n_buffers) { - buffers[n_buffers].length = buffer_size; - buffers[n_buffers].start = malloc(buffer_size); - - if (!buffers[n_buffers].start) { - fprintf(stderr, "Out of memory\\n"); - exit(EXIT_FAILURE); - } - } - } - - static void init_device(void) - { - struct v4l2_capability cap; - struct v4l2_cropcap cropcap; - struct v4l2_crop crop; - struct v4l2_format fmt; - unsigned int min; - - if (-1 == xioctl(fd, VIDIOC_QUERYCAP, &cap)) { - if (EINVAL == errno) { - fprintf(stderr, "%s is no V4L2 device\\n", - dev_name); - exit(EXIT_FAILURE); - } else { - errno_exit("VIDIOC_QUERYCAP"); - } - } - - if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) { - fprintf(stderr, "%s is no video capture device\\n", - dev_name); - exit(EXIT_FAILURE); - } - - switch (io) { - case IO_METHOD_READ: - if (!(cap.capabilities & V4L2_CAP_READWRITE)) { - fprintf(stderr, "%s does not support read i/o\\n", - dev_name); - exit(EXIT_FAILURE); - } - break; - - case IO_METHOD_MMAP: - case IO_METHOD_USERPTR: - if (!(cap.capabilities & V4L2_CAP_STREAMING)) { - fprintf(stderr, "%s does not support streaming i/o\\n", - dev_name); - exit(EXIT_FAILURE); - } - break; - } - - - /* Select video input, video standard and tune here. */ - - - CLEAR(cropcap); - - cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (0 == xioctl(fd, VIDIOC_CROPCAP, &cropcap)) { - crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - crop.c = cropcap.defrect; /* reset to default */ - - if (-1 == xioctl(fd, VIDIOC_S_CROP, &crop)) { - switch (errno) { - case EINVAL: - /* Cropping not supported. */ - break; - default: - /* Errors ignored. */ - break; - } - } - } else { - /* Errors ignored. */ - } - - - CLEAR(fmt); - - fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (force_format) { - fmt.fmt.pix.width = 640; - fmt.fmt.pix.height = 480; - fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; - fmt.fmt.pix.field = V4L2_FIELD_INTERLACED; - - if (-1 == xioctl(fd, VIDIOC_S_FMT, &fmt)) - errno_exit("VIDIOC_S_FMT"); - - /* Note VIDIOC_S_FMT may change width and height. */ - } else { - /* Preserve original settings as set by v4l2-ctl for example */ - if (-1 == xioctl(fd, VIDIOC_G_FMT, &fmt)) - errno_exit("VIDIOC_G_FMT"); - } - - /* Buggy driver paranoia. */ - min = fmt.fmt.pix.width * 2; - if (fmt.fmt.pix.bytesperline < min) - fmt.fmt.pix.bytesperline = min; - min = fmt.fmt.pix.bytesperline * fmt.fmt.pix.height; - if (fmt.fmt.pix.sizeimage < min) - fmt.fmt.pix.sizeimage = min; - - switch (io) { - case IO_METHOD_READ: - init_read(fmt.fmt.pix.sizeimage); - break; - - case IO_METHOD_MMAP: - init_mmap(); - break; - - case IO_METHOD_USERPTR: - init_userp(fmt.fmt.pix.sizeimage); - break; - } - } - - static void close_device(void) - { - if (-1 == close(fd)) - errno_exit("close"); - - fd = -1; - } - - static void open_device(void) - { - struct stat st; - - if (-1 == stat(dev_name, &st)) { - fprintf(stderr, "Cannot identify '%s': %d, %s\\n", - dev_name, errno, strerror(errno)); - exit(EXIT_FAILURE); - } - - if (!S_ISCHR(st.st_mode)) { - fprintf(stderr, "%s is no devicen", dev_name); - exit(EXIT_FAILURE); - } - - fd = open(dev_name, O_RDWR /* required */ | O_NONBLOCK, 0); - - if (-1 == fd) { - fprintf(stderr, "Cannot open '%s': %d, %s\\n", - dev_name, errno, strerror(errno)); - exit(EXIT_FAILURE); - } - } - - static void usage(FILE *fp, int argc, char **argv) - { - fprintf(fp, - "Usage: %s [options]\\n\\n" - "Version 1.3\\n" - "Options:\\n" - "-d | --device name Video device name [%s]n" - "-h | --help Print this messagen" - "-m | --mmap Use memory mapped buffers [default]n" - "-r | --read Use read() callsn" - "-u | --userp Use application allocated buffersn" - "-o | --output Outputs stream to stdoutn" - "-f | --format Force format to 640x480 YUYVn" - "-c | --count Number of frames to grab [%i]n" - "", - argv[0], dev_name, frame_count); - } - - static const char short_options[] = "d:hmruofc:"; - - static const struct option - long_options[] = { - { "device", required_argument, NULL, 'd' }, - { "help", no_argument, NULL, 'h' }, - { "mmap", no_argument, NULL, 'm' }, - { "read", no_argument, NULL, 'r' }, - { "userp", no_argument, NULL, 'u' }, - { "output", no_argument, NULL, 'o' }, - { "format", no_argument, NULL, 'f' }, - { "count", required_argument, NULL, 'c' }, - { 0, 0, 0, 0 } - }; - - int main(int argc, char **argv) - { - dev_name = "/dev/video0"; - - for (;;) { - int idx; - int c; - - c = getopt_long(argc, argv, - short_options, long_options, &idx); - - if (-1 == c) - break; - - switch (c) { - case 0: /* getopt_long() flag */ - break; - - case 'd': - dev_name = optarg; - break; - - case 'h': - usage(stdout, argc, argv); - exit(EXIT_SUCCESS); - - case 'm': - io = IO_METHOD_MMAP; - break; - - case 'r': - io = IO_METHOD_READ; - break; - - case 'u': - io = IO_METHOD_USERPTR; - break; - - case 'o': - out_buf++; - break; - - case 'f': - force_format++; - break; - - case 'c': - errno = 0; - frame_count = strtol(optarg, NULL, 0); - if (errno) - errno_exit(optarg); - break; - - default: - usage(stderr, argc, argv); - exit(EXIT_FAILURE); - } - } - - open_device(); - init_device(); - start_capturing(); - mainloop(); - stop_capturing(); - uninit_device(); - close_device(); - fprintf(stderr, "\\n"); - return 0; - } diff --git a/Documentation/linux_tv/media/v4l/colorspaces.rst b/Documentation/linux_tv/media/v4l/colorspaces.rst deleted file mode 100644 index 322eb94c1d44..000000000000 --- a/Documentation/linux_tv/media/v4l/colorspaces.rst +++ /dev/null @@ -1,163 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _colorspaces: - -*********** -Colorspaces -*********** - -'Color' is a very complex concept and depends on physics, chemistry and -biology. Just because you have three numbers that describe the 'red', -'green' and 'blue' components of the color of a pixel does not mean that -you can accurately display that color. A colorspace defines what it -actually *means* to have an RGB value of e.g. (255, 0, 0). That is, -which color should be reproduced on the screen in a perfectly calibrated -environment. - -In order to do that we first need to have a good definition of color, -i.e. some way to uniquely and unambiguously define a color so that -someone else can reproduce it. Human color vision is trichromatic since -the human eye has color receptors that are sensitive to three different -wavelengths of light. Hence the need to use three numbers to describe -color. Be glad you are not a mantis shrimp as those are sensitive to 12 -different wavelengths, so instead of RGB we would be using the -ABCDEFGHIJKL colorspace... - -Color exists only in the eye and brain and is the result of how strongly -color receptors are stimulated. This is based on the Spectral Power -Distribution (SPD) which is a graph showing the intensity (radiant -power) of the light at wavelengths covering the visible spectrum as it -enters the eye. The science of colorimetry is about the relationship -between the SPD and color as perceived by the human brain. - -Since the human eye has only three color receptors it is perfectly -possible that different SPDs will result in the same stimulation of -those receptors and are perceived as the same color, even though the SPD -of the light is different. - -In the 1920s experiments were devised to determine the relationship -between SPDs and the perceived color and that resulted in the CIE 1931 -standard that defines spectral weighting functions that model the -perception of color. Specifically that standard defines functions that -can take an SPD and calculate the stimulus for each color receptor. -After some further mathematical transforms these stimuli are known as -the *CIE XYZ tristimulus* values and these X, Y and Z values describe a -color as perceived by a human unambiguously. These X, Y and Z values are -all in the range [0…1]. - -The Y value in the CIE XYZ colorspace corresponds to luminance. Often -the CIE XYZ colorspace is transformed to the normalized CIE xyY -colorspace: - -x = X / (X + Y + Z) - -y = Y / (X + Y + Z) - -The x and y values are the chromaticity coordinates and can be used to -define a color without the luminance component Y. It is very confusing -to have such similar names for these colorspaces. Just be aware that if -colors are specified with lower case 'x' and 'y', then the CIE xyY -colorspace is used. Upper case 'X' and 'Y' refer to the CIE XYZ -colorspace. Also, y has nothing to do with luminance. Together x and y -specify a color, and Y the luminance. That is really all you need to -remember from a practical point of view. At the end of this section you -will find reading resources that go into much more detail if you are -interested. - -A monitor or TV will reproduce colors by emitting light at three -different wavelengths, the combination of which will stimulate the color -receptors in the eye and thus cause the perception of color. -Historically these wavelengths were defined by the red, green and blue -phosphors used in the displays. These *color primaries* are part of what -defines a colorspace. - -Different display devices will have different primaries and some -primaries are more suitable for some display technologies than others. -This has resulted in a variety of colorspaces that are used for -different display technologies or uses. To define a colorspace you need -to define the three color primaries (these are typically defined as x, y -chromaticity coordinates from the CIE xyY colorspace) but also the white -reference: that is the color obtained when all three primaries are at -maximum power. This determines the relative power or energy of the -primaries. This is usually chosen to be close to daylight which has been -defined as the CIE D65 Illuminant. - -To recapitulate: the CIE XYZ colorspace uniquely identifies colors. -Other colorspaces are defined by three chromaticity coordinates defined -in the CIE xyY colorspace. Based on those a 3x3 matrix can be -constructed that transforms CIE XYZ colors to colors in the new -colorspace. - -Both the CIE XYZ and the RGB colorspace that are derived from the -specific chromaticity primaries are linear colorspaces. But neither the -eye, nor display technology is linear. Doubling the values of all -components in the linear colorspace will not be perceived as twice the -intensity of the color. So each colorspace also defines a transfer -function that takes a linear color component value and transforms it to -the non-linear component value, which is a closer match to the -non-linear performance of both the eye and displays. Linear component -values are denoted RGB, non-linear are denoted as R'G'B'. In general -colors used in graphics are all R'G'B', except in openGL which uses -linear RGB. Special care should be taken when dealing with openGL to -provide linear RGB colors or to use the built-in openGL support to apply -the inverse transfer function. - -The final piece that defines a colorspace is a function that transforms -non-linear R'G'B' to non-linear Y'CbCr. This function is determined by -the so-called luma coefficients. There may be multiple possible Y'CbCr -encodings allowed for the same colorspace. Many encodings of color -prefer to use luma (Y') and chroma (CbCr) instead of R'G'B'. Since the -human eye is more sensitive to differences in luminance than in color -this encoding allows one to reduce the amount of color information -compared to the luma data. Note that the luma (Y') is unrelated to the Y -in the CIE XYZ colorspace. Also note that Y'CbCr is often called YCbCr -or YUV even though these are strictly speaking wrong. - -Sometimes people confuse Y'CbCr as being a colorspace. This is not -correct, it is just an encoding of an R'G'B' color into luma and chroma -values. The underlying colorspace that is associated with the R'G'B' -color is also associated with the Y'CbCr color. - -The final step is how the RGB, R'G'B' or Y'CbCr values are quantized. -The CIE XYZ colorspace where X, Y and Z are in the range [0…1] describes -all colors that humans can perceive, but the transform to another -colorspace will produce colors that are outside the [0…1] range. Once -clamped to the [0…1] range those colors can no longer be reproduced in -that colorspace. This clamping is what reduces the extent or gamut of -the colorspace. How the range of [0…1] is translated to integer values -in the range of [0…255] (or higher, depending on the color depth) is -called the quantization. This is *not* part of the colorspace -definition. In practice RGB or R'G'B' values are full range, i.e. they -use the full [0…255] range. Y'CbCr values on the other hand are limited -range with Y' using [16…235] and Cb and Cr using [16…240]. - -Unfortunately, in some cases limited range RGB is also used where the -components use the range [16…235]. And full range Y'CbCr also exists -using the [0…255] range. - -In order to correctly interpret a color you need to know the -quantization range, whether it is R'G'B' or Y'CbCr, the used Y'CbCr -encoding and the colorspace. From that information you can calculate the -corresponding CIE XYZ color and map that again to whatever colorspace -your display device uses. - -The colorspace definition itself consists of the three chromaticity -primaries, the white reference chromaticity, a transfer function and the -luma coefficients needed to transform R'G'B' to Y'CbCr. While some -colorspace standards correctly define all four, quite often the -colorspace standard only defines some, and you have to rely on other -standards for the missing pieces. The fact that colorspaces are often a -mix of different standards also led to very confusing naming conventions -where the name of a standard was used to name a colorspace when in fact -that standard was part of various other colorspaces as well. - -If you want to read more about colors and colorspaces, then the -following resources are useful: :ref:`poynton` is a good practical -book for video engineers, :ref:`colimg` has a much broader scope and -describes many more aspects of color (physics, chemistry, biology, -etc.). The -`http://www.brucelindbloom.com `__ -website is an excellent resource, especially with respect to the -mathematics behind colorspace conversions. The wikipedia -`CIE 1931 colorspace `__ -article is also very useful. diff --git a/Documentation/linux_tv/media/v4l/common-defs.rst b/Documentation/linux_tv/media/v4l/common-defs.rst deleted file mode 100644 index 39058216b630..000000000000 --- a/Documentation/linux_tv/media/v4l/common-defs.rst +++ /dev/null @@ -1,13 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _common-defs: - -****************************************************** -Common definitions for V4L2 and V4L2 subdev interfaces -****************************************************** - - -.. toctree:: - :maxdepth: 1 - - selections-common diff --git a/Documentation/linux_tv/media/v4l/common.rst b/Documentation/linux_tv/media/v4l/common.rst deleted file mode 100644 index 13f2ed3fc5a6..000000000000 --- a/Documentation/linux_tv/media/v4l/common.rst +++ /dev/null @@ -1,46 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _common: - -################### -Common API Elements -################### -Programming a V4L2 device consists of these steps: - -- Opening the device - -- Changing device properties, selecting a video and audio input, video - standard, picture brightness a. o. - -- Negotiating a data format - -- Negotiating an input/output method - -- The actual input/output loop - -- Closing the device - -In practice most steps are optional and can be executed out of order. It -depends on the V4L2 device type, you can read about the details in -:ref:`devices`. In this chapter we will discuss the basic concepts -applicable to all devices. - - -.. toctree:: - :maxdepth: 1 - - open - querycap - app-pri - video - audio - tuner - standard - dv-timings - control - extended-controls - format - planar-apis - crop - selection-api - streaming-par diff --git a/Documentation/linux_tv/media/v4l/compat.rst b/Documentation/linux_tv/media/v4l/compat.rst deleted file mode 100644 index 8b5e1cebd8f4..000000000000 --- a/Documentation/linux_tv/media/v4l/compat.rst +++ /dev/null @@ -1,18 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _compat: - -******* -Changes -******* - -The following chapters document the evolution of the V4L2 API, errata or -extensions. They are also intended to help application and driver -writers to port or update their code. - - -.. toctree:: - :maxdepth: 1 - - diff-v4l - hist-v4l2 diff --git a/Documentation/linux_tv/media/v4l/control.rst b/Documentation/linux_tv/media/v4l/control.rst deleted file mode 100644 index 6cf218ab36fb..000000000000 --- a/Documentation/linux_tv/media/v4l/control.rst +++ /dev/null @@ -1,533 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _control: - -************* -User Controls -************* - -Devices typically have a number of user-settable controls such as -brightness, saturation and so on, which would be presented to the user -on a graphical user interface. But, different devices will have -different controls available, and furthermore, the range of possible -values, and the default value will vary from device to device. The -control ioctls provide the information and a mechanism to create a nice -user interface for these controls that will work correctly with any -device. - -All controls are accessed using an ID value. V4L2 defines several IDs -for specific purposes. Drivers can also implement their own custom -controls using ``V4L2_CID_PRIVATE_BASE`` [1]_ and higher values. The -pre-defined control IDs have the prefix ``V4L2_CID_``, and are listed in -:ref:`control-id`. The ID is used when querying the attributes of a -control, and when getting or setting the current value. - -Generally applications should present controls to the user without -assumptions about their purpose. Each control comes with a name string -the user is supposed to understand. When the purpose is non-intuitive -the driver writer should provide a user manual, a user interface plug-in -or a driver specific panel application. Predefined IDs were introduced -to change a few controls programmatically, for example to mute a device -during a channel switch. - -Drivers may enumerate different controls after switching the current -video input or output, tuner or modulator, or audio input or output. -Different in the sense of other bounds, another default and current -value, step size or other menu items. A control with a certain *custom* -ID can also change name and type. - -If a control is not applicable to the current configuration of the -device (for example, it doesn't apply to the current video input) -drivers set the ``V4L2_CTRL_FLAG_INACTIVE`` flag. - -Control values are stored globally, they do not change when switching -except to stay within the reported bounds. They also do not change e. g. -when the device is opened or closed, when the tuner radio frequency is -changed or generally never without application request. - -V4L2 specifies an event mechanism to notify applications when controls -change value (see -:ref:`VIDIOC_SUBSCRIBE_EVENT`, event -``V4L2_EVENT_CTRL``), panel applications might want to make use of that -in order to always reflect the correct control value. - -All controls use machine endianness. - - -.. _control-id: - -Control IDs -=========== - -``V4L2_CID_BASE`` - First predefined ID, equal to ``V4L2_CID_BRIGHTNESS``. - -``V4L2_CID_USER_BASE`` - Synonym of ``V4L2_CID_BASE``. - -``V4L2_CID_BRIGHTNESS`` ``(integer)`` - Picture brightness, or more precisely, the black level. - -``V4L2_CID_CONTRAST`` ``(integer)`` - Picture contrast or luma gain. - -``V4L2_CID_SATURATION`` ``(integer)`` - Picture color saturation or chroma gain. - -``V4L2_CID_HUE`` ``(integer)`` - Hue or color balance. - -``V4L2_CID_AUDIO_VOLUME`` ``(integer)`` - Overall audio volume. Note some drivers also provide an OSS or ALSA - mixer interface. - -``V4L2_CID_AUDIO_BALANCE`` ``(integer)`` - Audio stereo balance. Minimum corresponds to all the way left, - maximum to right. - -``V4L2_CID_AUDIO_BASS`` ``(integer)`` - Audio bass adjustment. - -``V4L2_CID_AUDIO_TREBLE`` ``(integer)`` - Audio treble adjustment. - -``V4L2_CID_AUDIO_MUTE`` ``(boolean)`` - Mute audio, i. e. set the volume to zero, however without affecting - ``V4L2_CID_AUDIO_VOLUME``. Like ALSA drivers, V4L2 drivers must mute - at load time to avoid excessive noise. Actually the entire device - should be reset to a low power consumption state. - -``V4L2_CID_AUDIO_LOUDNESS`` ``(boolean)`` - Loudness mode (bass boost). - -``V4L2_CID_BLACK_LEVEL`` ``(integer)`` - Another name for brightness (not a synonym of - ``V4L2_CID_BRIGHTNESS``). This control is deprecated and should not - be used in new drivers and applications. - -``V4L2_CID_AUTO_WHITE_BALANCE`` ``(boolean)`` - Automatic white balance (cameras). - -``V4L2_CID_DO_WHITE_BALANCE`` ``(button)`` - This is an action control. When set (the value is ignored), the - device will do a white balance and then hold the current setting. - Contrast this with the boolean ``V4L2_CID_AUTO_WHITE_BALANCE``, - which, when activated, keeps adjusting the white balance. - -``V4L2_CID_RED_BALANCE`` ``(integer)`` - Red chroma balance. - -``V4L2_CID_BLUE_BALANCE`` ``(integer)`` - Blue chroma balance. - -``V4L2_CID_GAMMA`` ``(integer)`` - Gamma adjust. - -``V4L2_CID_WHITENESS`` ``(integer)`` - Whiteness for grey-scale devices. This is a synonym for - ``V4L2_CID_GAMMA``. This control is deprecated and should not be - used in new drivers and applications. - -``V4L2_CID_EXPOSURE`` ``(integer)`` - Exposure (cameras). [Unit?] - -``V4L2_CID_AUTOGAIN`` ``(boolean)`` - Automatic gain/exposure control. - -``V4L2_CID_GAIN`` ``(integer)`` - Gain control. - -``V4L2_CID_HFLIP`` ``(boolean)`` - Mirror the picture horizontally. - -``V4L2_CID_VFLIP`` ``(boolean)`` - Mirror the picture vertically. - -.. _v4l2-power-line-frequency: - -``V4L2_CID_POWER_LINE_FREQUENCY`` ``(enum)`` - Enables a power line frequency filter to avoid flicker. Possible - values for ``enum v4l2_power_line_frequency`` are: - ``V4L2_CID_POWER_LINE_FREQUENCY_DISABLED`` (0), - ``V4L2_CID_POWER_LINE_FREQUENCY_50HZ`` (1), - ``V4L2_CID_POWER_LINE_FREQUENCY_60HZ`` (2) and - ``V4L2_CID_POWER_LINE_FREQUENCY_AUTO`` (3). - -``V4L2_CID_HUE_AUTO`` ``(boolean)`` - Enables automatic hue control by the device. The effect of setting - ``V4L2_CID_HUE`` while automatic hue control is enabled is - undefined, drivers should ignore such request. - -``V4L2_CID_WHITE_BALANCE_TEMPERATURE`` ``(integer)`` - This control specifies the white balance settings as a color - temperature in Kelvin. A driver should have a minimum of 2800 - (incandescent) to 6500 (daylight). For more information about color - temperature see - `Wikipedia `__. - -``V4L2_CID_SHARPNESS`` ``(integer)`` - Adjusts the sharpness filters in a camera. The minimum value - disables the filters, higher values give a sharper picture. - -``V4L2_CID_BACKLIGHT_COMPENSATION`` ``(integer)`` - Adjusts the backlight compensation in a camera. The minimum value - disables backlight compensation. - -``V4L2_CID_CHROMA_AGC`` ``(boolean)`` - Chroma automatic gain control. - -``V4L2_CID_CHROMA_GAIN`` ``(integer)`` - Adjusts the Chroma gain control (for use when chroma AGC is - disabled). - -``V4L2_CID_COLOR_KILLER`` ``(boolean)`` - Enable the color killer (i. e. force a black & white image in case - of a weak video signal). - -.. _v4l2-colorfx: - -``V4L2_CID_COLORFX`` ``(enum)`` - Selects a color effect. The following values are defined: - - - -.. flat-table:: - :header-rows: 0 - :stub-columns: 0 - - - - .. row 1 - - - ``V4L2_COLORFX_NONE`` - - - Color effect is disabled. - - - .. row 2 - - - ``V4L2_COLORFX_ANTIQUE`` - - - An aging (old photo) effect. - - - .. row 3 - - - ``V4L2_COLORFX_ART_FREEZE`` - - - Frost color effect. - - - .. row 4 - - - ``V4L2_COLORFX_AQUA`` - - - Water color, cool tone. - - - .. row 5 - - - ``V4L2_COLORFX_BW`` - - - Black and white. - - - .. row 6 - - - ``V4L2_COLORFX_EMBOSS`` - - - Emboss, the highlights and shadows replace light/dark boundaries - and low contrast areas are set to a gray background. - - - .. row 7 - - - ``V4L2_COLORFX_GRASS_GREEN`` - - - Grass green. - - - .. row 8 - - - ``V4L2_COLORFX_NEGATIVE`` - - - Negative. - - - .. row 9 - - - ``V4L2_COLORFX_SEPIA`` - - - Sepia tone. - - - .. row 10 - - - ``V4L2_COLORFX_SKETCH`` - - - Sketch. - - - .. row 11 - - - ``V4L2_COLORFX_SKIN_WHITEN`` - - - Skin whiten. - - - .. row 12 - - - ``V4L2_COLORFX_SKY_BLUE`` - - - Sky blue. - - - .. row 13 - - - ``V4L2_COLORFX_SOLARIZATION`` - - - Solarization, the image is partially reversed in tone, only color - values above or below a certain threshold are inverted. - - - .. row 14 - - - ``V4L2_COLORFX_SILHOUETTE`` - - - Silhouette (outline). - - - .. row 15 - - - ``V4L2_COLORFX_VIVID`` - - - Vivid colors. - - - .. row 16 - - - ``V4L2_COLORFX_SET_CBCR`` - - - The Cb and Cr chroma components are replaced by fixed coefficients - determined by ``V4L2_CID_COLORFX_CBCR`` control. - - - -``V4L2_CID_COLORFX_CBCR`` ``(integer)`` - Determines the Cb and Cr coefficients for ``V4L2_COLORFX_SET_CBCR`` - color effect. Bits [7:0] of the supplied 32 bit value are - interpreted as Cr component, bits [15:8] as Cb component and bits - [31:16] must be zero. - -``V4L2_CID_AUTOBRIGHTNESS`` ``(boolean)`` - Enable Automatic Brightness. - -``V4L2_CID_ROTATE`` ``(integer)`` - Rotates the image by specified angle. Common angles are 90, 270 and - 180. Rotating the image to 90 and 270 will reverse the height and - width of the display window. It is necessary to set the new height - and width of the picture using the - :ref:`VIDIOC_S_FMT ` ioctl according to the - rotation angle selected. - -``V4L2_CID_BG_COLOR`` ``(integer)`` - Sets the background color on the current output device. Background - color needs to be specified in the RGB24 format. The supplied 32 bit - value is interpreted as bits 0-7 Red color information, bits 8-15 - Green color information, bits 16-23 Blue color information and bits - 24-31 must be zero. - -``V4L2_CID_ILLUMINATORS_1 V4L2_CID_ILLUMINATORS_2`` ``(boolean)`` - Switch on or off the illuminator 1 or 2 of the device (usually a - microscope). - -``V4L2_CID_MIN_BUFFERS_FOR_CAPTURE`` ``(integer)`` - This is a read-only control that can be read by the application and - used as a hint to determine the number of CAPTURE buffers to pass to - REQBUFS. The value is the minimum number of CAPTURE buffers that is - necessary for hardware to work. - -``V4L2_CID_MIN_BUFFERS_FOR_OUTPUT`` ``(integer)`` - This is a read-only control that can be read by the application and - used as a hint to determine the number of OUTPUT buffers to pass to - REQBUFS. The value is the minimum number of OUTPUT buffers that is - necessary for hardware to work. - -.. _v4l2-alpha-component: - -``V4L2_CID_ALPHA_COMPONENT`` ``(integer)`` - Sets the alpha color component. When a capture device (or capture - queue of a mem-to-mem device) produces a frame format that includes - an alpha component (e.g. - :ref:`packed RGB image formats `) and the alpha value - is not defined by the device or the mem-to-mem input data this - control lets you select the alpha component value of all pixels. - When an output device (or output queue of a mem-to-mem device) - consumes a frame format that doesn't include an alpha component and - the device supports alpha channel processing this control lets you - set the alpha component value of all pixels for further processing - in the device. - -``V4L2_CID_LASTP1`` - End of the predefined control IDs (currently - ``V4L2_CID_ALPHA_COMPONENT`` + 1). - -``V4L2_CID_PRIVATE_BASE`` - ID of the first custom (driver specific) control. Applications - depending on particular custom controls should check the driver name - and version, see :ref:`querycap`. - -Applications can enumerate the available controls with the -:ref:`VIDIOC_QUERYCTRL` and -:ref:`VIDIOC_QUERYMENU ` ioctls, get and set a -control value with the :ref:`VIDIOC_G_CTRL ` and -:ref:`VIDIOC_S_CTRL ` ioctls. Drivers must implement -``VIDIOC_QUERYCTRL``, ``VIDIOC_G_CTRL`` and ``VIDIOC_S_CTRL`` when the -device has one or more controls, ``VIDIOC_QUERYMENU`` when it has one or -more menu type controls. - - -.. _enum_all_controls: - -.. code-block:: c - :caption: Example 1.8. Enumerating all user controls - - - struct v4l2_queryctrl queryctrl; - struct v4l2_querymenu querymenu; - - static void enumerate_menu(void) - { - printf(" Menu items:\\n"); - - memset(&querymenu, 0, sizeof(querymenu)); - querymenu.id = queryctrl.id; - - for (querymenu.index = queryctrl.minimum; - querymenu.index <= queryctrl.maximum; - querymenu.index++) { - if (0 == ioctl(fd, VIDIOC_QUERYMENU, &querymenu)) { - printf(" %s\\n", querymenu.name); - } - } - } - - memset(&queryctrl, 0, sizeof(queryctrl)); - - for (queryctrl.id = V4L2_CID_BASE; - queryctrl.id < V4L2_CID_LASTP1; - queryctrl.id++) { - if (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) { - if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) - continue; - - printf("Control %s\\n", queryctrl.name); - - if (queryctrl.type == V4L2_CTRL_TYPE_MENU) - enumerate_menu(); - } else { - if (errno == EINVAL) - continue; - - perror("VIDIOC_QUERYCTRL"); - exit(EXIT_FAILURE); - } - } - - for (queryctrl.id = V4L2_CID_PRIVATE_BASE;; - queryctrl.id++) { - if (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) { - if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) - continue; - - printf("Control %s\\n", queryctrl.name); - - if (queryctrl.type == V4L2_CTRL_TYPE_MENU) - enumerate_menu(); - } else { - if (errno == EINVAL) - break; - - perror("VIDIOC_QUERYCTRL"); - exit(EXIT_FAILURE); - } - } - - -.. code-block:: c - :caption: Example 1.9. Enumerating all user controls (alternative) - - memset(&queryctrl, 0, sizeof(queryctrl)); - - queryctrl.id = V4L2_CTRL_CLASS_USER | V4L2_CTRL_FLAG_NEXT_CTRL; - while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) { - if (V4L2_CTRL_ID2CLASS(queryctrl.id) != V4L2_CTRL_CLASS_USER) - break; - if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) - continue; - - printf("Control %s\\n", queryctrl.name); - - if (queryctrl.type == V4L2_CTRL_TYPE_MENU) - enumerate_menu(); - - queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL; - } - if (errno != EINVAL) { - perror("VIDIOC_QUERYCTRL"); - exit(EXIT_FAILURE); - } - - -.. code-block:: c - :caption: Example 1.10. Changing controls - - struct v4l2_queryctrl queryctrl; - struct v4l2_control control; - - memset(&queryctrl, 0, sizeof(queryctrl)); - queryctrl.id = V4L2_CID_BRIGHTNESS; - - if (-1 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) { - if (errno != EINVAL) { - perror("VIDIOC_QUERYCTRL"); - exit(EXIT_FAILURE); - } else { - printf("V4L2_CID_BRIGHTNESS is not supportedn"); - } - } else if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) { - printf("V4L2_CID_BRIGHTNESS is not supportedn"); - } else { - memset(&control, 0, sizeof (control)); - control.id = V4L2_CID_BRIGHTNESS; - control.value = queryctrl.default_value; - - if (-1 == ioctl(fd, VIDIOC_S_CTRL, &control)) { - perror("VIDIOC_S_CTRL"); - exit(EXIT_FAILURE); - } - } - - memset(&control, 0, sizeof(control)); - control.id = V4L2_CID_CONTRAST; - - if (0 == ioctl(fd, VIDIOC_G_CTRL, &control)) { - control.value += 1; - - /* The driver may clamp the value or return ERANGE, ignored here */ - - if (-1 == ioctl(fd, VIDIOC_S_CTRL, &control) - && errno != ERANGE) { - perror("VIDIOC_S_CTRL"); - exit(EXIT_FAILURE); - } - /* Ignore if V4L2_CID_CONTRAST is unsupported */ - } else if (errno != EINVAL) { - perror("VIDIOC_G_CTRL"); - exit(EXIT_FAILURE); - } - - control.id = V4L2_CID_AUDIO_MUTE; - control.value = 1; /* silence */ - - /* Errors ignored */ - ioctl(fd, VIDIOC_S_CTRL, &control); - -.. [1] - The use of ``V4L2_CID_PRIVATE_BASE`` is problematic because different - drivers may use the same ``V4L2_CID_PRIVATE_BASE`` ID for different - controls. This makes it hard to programatically set such controls - since the meaning of the control with that ID is driver dependent. In - order to resolve this drivers use unique IDs and the - ``V4L2_CID_PRIVATE_BASE`` IDs are mapped to those unique IDs by the - kernel. Consider these ``V4L2_CID_PRIVATE_BASE`` IDs as aliases to - the real IDs. - - Many applications today still use the ``V4L2_CID_PRIVATE_BASE`` IDs - instead of using :ref:`VIDIOC_QUERYCTRL` with - the ``V4L2_CTRL_FLAG_NEXT_CTRL`` flag to enumerate all IDs, so - support for ``V4L2_CID_PRIVATE_BASE`` is still around. diff --git a/Documentation/linux_tv/media/v4l/crop.rst b/Documentation/linux_tv/media/v4l/crop.rst deleted file mode 100644 index ed43b36c51d8..000000000000 --- a/Documentation/linux_tv/media/v4l/crop.rst +++ /dev/null @@ -1,294 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _crop: - -************************************* -Image Cropping, Insertion and Scaling -************************************* - -Some video capture devices can sample a subsection of the picture and -shrink or enlarge it to an image of arbitrary size. We call these -abilities cropping and scaling. Some video output devices can scale an -image up or down and insert it at an arbitrary scan line and horizontal -offset into a video signal. - -Applications can use the following API to select an area in the video -signal, query the default area and the hardware limits. - -**NOTE**: Despite their name, the :ref:`VIDIOC_CROPCAP `, -:ref:`VIDIOC_G_CROP ` and :ref:`VIDIOC_S_CROP -` ioctls apply to input as well as output devices. - -Scaling requires a source and a target. On a video capture or overlay -device the source is the video signal, and the cropping ioctls determine -the area actually sampled. The target are images read by the application -or overlaid onto the graphics screen. Their size (and position for an -overlay) is negotiated with the :ref:`VIDIOC_G_FMT ` -and :ref:`VIDIOC_S_FMT ` ioctls. - -On a video output device the source are the images passed in by the -application, and their size is again negotiated with the -:ref:`VIDIOC_G_FMT ` and :ref:`VIDIOC_S_FMT ` -ioctls, or may be encoded in a compressed video stream. The target is -the video signal, and the cropping ioctls determine the area where the -images are inserted. - -Source and target rectangles are defined even if the device does not -support scaling or the :ref:`VIDIOC_G_CROP ` and -:ref:`VIDIOC_S_CROP ` ioctls. Their size (and position -where applicable) will be fixed in this case. - -**NOTE:** All capture and output devices must support the -:ref:`VIDIOC_CROPCAP ` ioctl such that applications can -determine if scaling takes place. - - -Cropping Structures -=================== - - -.. _crop-scale: - -.. figure:: crop_files/crop.* - :alt: crop.pdf / crop.gif - :align: center - - Image Cropping, Insertion and Scaling - - The cropping, insertion and scaling process - - - -For capture devices the coordinates of the top left corner, width and -height of the area which can be sampled is given by the ``bounds`` -substructure of the struct :ref:`v4l2_cropcap ` returned -by the :ref:`VIDIOC_CROPCAP ` ioctl. To support a wide -range of hardware this specification does not define an origin or units. -However by convention drivers should horizontally count unscaled samples -relative to 0H (the leading edge of the horizontal sync pulse, see -:ref:`vbi-hsync`). Vertically ITU-R line numbers of the first field -(see ITU R-525 line numbering for :ref:`525 lines ` and for -:ref:`625 lines `), multiplied by two if the driver -can capture both fields. - -The top left corner, width and height of the source rectangle, that is -the area actually sampled, is given by struct -:ref:`v4l2_crop ` using the same coordinate system as -struct :ref:`v4l2_cropcap `. Applications can use the -:ref:`VIDIOC_G_CROP ` and :ref:`VIDIOC_S_CROP ` -ioctls to get and set this rectangle. It must lie completely within the -capture boundaries and the driver may further adjust the requested size -and/or position according to hardware limitations. - -Each capture device has a default source rectangle, given by the -``defrect`` substructure of struct -:ref:`v4l2_cropcap `. The center of this rectangle -shall align with the center of the active picture area of the video -signal, and cover what the driver writer considers the complete picture. -Drivers shall reset the source rectangle to the default when the driver -is first loaded, but not later. - -For output devices these structures and ioctls are used accordingly, -defining the *target* rectangle where the images will be inserted into -the video signal. - - -Scaling Adjustments -=================== - -Video hardware can have various cropping, insertion and scaling -limitations. It may only scale up or down, support only discrete scaling -factors, or have different scaling abilities in horizontal and vertical -direction. Also it may not support scaling at all. At the same time the -struct :ref:`v4l2_crop ` rectangle may have to be aligned, -and both the source and target rectangles may have arbitrary upper and -lower size limits. In particular the maximum ``width`` and ``height`` in -struct :ref:`v4l2_crop ` may be smaller than the struct -:ref:`v4l2_cropcap `. ``bounds`` area. Therefore, as -usual, drivers are expected to adjust the requested parameters and -return the actual values selected. - -Applications can change the source or the target rectangle first, as -they may prefer a particular image size or a certain area in the video -signal. If the driver has to adjust both to satisfy hardware -limitations, the last requested rectangle shall take priority, and the -driver should preferably adjust the opposite one. The -:ref:`VIDIOC_TRY_FMT ` ioctl however shall not change -the driver state and therefore only adjust the requested rectangle. - -Suppose scaling on a video capture device is restricted to a factor 1:1 -or 2:1 in either direction and the target image size must be a multiple -of 16 × 16 pixels. The source cropping rectangle is set to defaults, -which are also the upper limit in this example, of 640 × 400 pixels at -offset 0, 0. An application requests an image size of 300 × 225 pixels, -assuming video will be scaled down from the "full picture" accordingly. -The driver sets the image size to the closest possible values 304 × 224, -then chooses the cropping rectangle closest to the requested size, that -is 608 × 224 (224 × 2:1 would exceed the limit 400). The offset 0, 0 is -still valid, thus unmodified. Given the default cropping rectangle -reported by :ref:`VIDIOC_CROPCAP ` the application can -easily propose another offset to center the cropping rectangle. - -Now the application may insist on covering an area using a picture -aspect ratio closer to the original request, so it asks for a cropping -rectangle of 608 × 456 pixels. The present scaling factors limit -cropping to 640 × 384, so the driver returns the cropping size 608 × 384 -and adjusts the image size to closest possible 304 × 192. - - -Examples -======== - -Source and target rectangles shall remain unchanged across closing and -reopening a device, such that piping data into or out of a device will -work without special preparations. More advanced applications should -ensure the parameters are suitable before starting I/O. - -**NOTE:** on the next two examples, a video capture device is assumed; -change ``V4L2_BUF_TYPE_VIDEO_CAPTURE`` for other types of device. - -.. code-block:: c - :caption: Example 1.11. Resetting the cropping parameters - - struct v4l2_cropcap cropcap; - struct v4l2_crop crop; - - memset (&cropcap, 0, sizeof (cropcap)); - cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (-1 == ioctl (fd, VIDIOC_CROPCAP, &cropcap)) { - perror ("VIDIOC_CROPCAP"); - exit (EXIT_FAILURE); - } - - memset (&crop, 0, sizeof (crop)); - crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - crop.c = cropcap.defrect; - - /* Ignore if cropping is not supported (EINVAL). */ - - if (-1 == ioctl (fd, VIDIOC_S_CROP, &crop) - && errno != EINVAL) { - perror ("VIDIOC_S_CROP"); - exit (EXIT_FAILURE); - } - -.. code-block:: c - :caption: Example 1.12. Simple downscaling - - struct v4l2_cropcap cropcap; - struct v4l2_format format; - - reset_cropping_parameters (); - - /* Scale down to 1/4 size of full picture. */ - - memset (&format, 0, sizeof (format)); /* defaults */ - - format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - format.fmt.pix.width = cropcap.defrect.width >> 1; - format.fmt.pix.height = cropcap.defrect.height >> 1; - format.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; - - if (-1 == ioctl (fd, VIDIOC_S_FMT, &format)) { - perror ("VIDIOC_S_FORMAT"); - exit (EXIT_FAILURE); - } - - /* We could check the actual image size now, the actual scaling factor - or if the driver can scale at all. */ - -**NOTE:** This example assumes an output device. - -.. code-block:: c - :caption: Example 1.13. Selecting an output area - - struct v4l2_cropcap cropcap; - struct v4l2_crop crop; - - memset (&cropcap, 0, sizeof (cropcap)); - cropcap.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - - if (-1 == ioctl (fd, VIDIOC_CROPCAP;, &cropcap)) { - perror ("VIDIOC_CROPCAP"); - exit (EXIT_FAILURE); - } - - memset (&crop, 0, sizeof (crop)); - - crop.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - crop.c = cropcap.defrect; - - /* Scale the width and height to 50 % of their original size - and center the output. */ - - crop.c.width /= 2; - crop.c.height /= 2; - crop.c.left += crop.c.width / 2; - crop.c.top += crop.c.height / 2; - - /* Ignore if cropping is not supported (EINVAL). */ - - if (-1 == ioctl (fd, VIDIOC_S_CROP, &crop) - && errno != EINVAL) { - perror ("VIDIOC_S_CROP"); - exit (EXIT_FAILURE); - } - -**NOTE:** This example assumes a video capture device. - -.. code-block:: c - :caption: Example 1.14. Current scaling factor and pixel aspect - - struct v4l2_cropcap cropcap; - struct v4l2_crop crop; - struct v4l2_format format; - double hscale, vscale; - double aspect; - int dwidth, dheight; - - memset (&cropcap, 0, sizeof (cropcap)); - cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (-1 == ioctl (fd, VIDIOC_CROPCAP, &cropcap)) { - perror ("VIDIOC_CROPCAP"); - exit (EXIT_FAILURE); - } - - memset (&crop, 0, sizeof (crop)); - crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (-1 == ioctl (fd, VIDIOC_G_CROP, &crop)) { - if (errno != EINVAL) { - perror ("VIDIOC_G_CROP"); - exit (EXIT_FAILURE); - } - - /* Cropping not supported. */ - crop.c = cropcap.defrect; - } - - memset (&format, 0, sizeof (format)); - format.fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (-1 == ioctl (fd, VIDIOC_G_FMT, &format)) { - perror ("VIDIOC_G_FMT"); - exit (EXIT_FAILURE); - } - - /* The scaling applied by the driver. */ - - hscale = format.fmt.pix.width / (double) crop.c.width; - vscale = format.fmt.pix.height / (double) crop.c.height; - - aspect = cropcap.pixelaspect.numerator / - (double) cropcap.pixelaspect.denominator; - aspect = aspect * hscale / vscale; - - /* Devices following ITU-R BT.601 do not capture - square pixels. For playback on a computer monitor - we should scale the images to this size. */ - - dwidth = format.fmt.pix.width / aspect; - dheight = format.fmt.pix.height; diff --git a/Documentation/linux_tv/media/v4l/crop_files/crop.gif b/Documentation/linux_tv/media/v4l/crop_files/crop.gif deleted file mode 100644 index 3b9e7d836d4b..000000000000 Binary files a/Documentation/linux_tv/media/v4l/crop_files/crop.gif and /dev/null differ diff --git a/Documentation/linux_tv/media/v4l/crop_files/crop.pdf b/Documentation/linux_tv/media/v4l/crop_files/crop.pdf deleted file mode 100644 index c9fb81cd32f3..000000000000 Binary files a/Documentation/linux_tv/media/v4l/crop_files/crop.pdf and /dev/null differ diff --git a/Documentation/linux_tv/media/v4l/depth-formats.rst b/Documentation/linux_tv/media/v4l/depth-formats.rst deleted file mode 100644 index 82f183870aae..000000000000 --- a/Documentation/linux_tv/media/v4l/depth-formats.rst +++ /dev/null @@ -1,15 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _depth-formats: - -************* -Depth Formats -************* - -Depth data provides distance to points, mapped onto the image plane - - -.. toctree:: - :maxdepth: 1 - - pixfmt-z16 diff --git a/Documentation/linux_tv/media/v4l/dev-capture.rst b/Documentation/linux_tv/media/v4l/dev-capture.rst deleted file mode 100644 index 16030a8354fd..000000000000 --- a/Documentation/linux_tv/media/v4l/dev-capture.rst +++ /dev/null @@ -1,102 +0,0 @@ -.. -*- coding: utf-8; mode: rst -*- - -.. _capture: - -*********************** -Video Capture Interface -*********************** - -Video capture devices sample an analog video signal and store the -digitized images in memory. Today nearly all devices can capture at full -25 or 30 frames/second. With this interface applications can control the -capture process and move images from the driver into user space. - -Conventionally V4L2 video capture devices are accessed through character -device special files named ``/dev/video`` and ``/dev/video0`` to -``/dev/video63`` with major number 81 and minor numbers 0 to 63. -``/dev/video`` is typically a symbolic link to the preferred video -device. Note the same device files are used for video output devices. - - -Querying Capabilities -===================== - -Devices supporting the video capture interface set the -``V4L2_CAP_VIDEO_CAPTURE`` or ``V4L2_CAP_VIDEO_CAPTURE_MPLANE`` flag in -the ``capabilities`` field of struct -:ref:`v4l2_capability ` returned by the -:ref:`VIDIOC_QUERYCAP` ioctl. As secondary device -functions they may also support the :ref:`video overlay ` -(``V4L2_CAP_VIDEO_OVERLAY``) and the :ref:`raw VBI capture ` -(``V4L2_CAP_VBI_CAPTURE``) interface. At least one of the read/write or -streaming I/O methods must be supported. Tuners and audio inputs are -optional. - - -Supplemental Functions -====================== - -Video capture devices shall support :ref:`audio input