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[media] doc-rst: add media.h header to media contrller 

Adding the header file is interesting for several reasons:

1) It makes MC documentation consistend with other parts;
2) The header file can be used as a quick index to all API
   elements;
3) The cross-reference check helps to identify symbols that
   aren't documented.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2016-07-09 08:54:35 -03:00
parent fb6fc6c9ac
commit d2c6815031
10 changed files with 170 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/media/Makefile
View File

@ -5,7 +5,7 @@ UAPI = $(srctree)/include/uapi/linux
SRC_DIR=$(srctree)/Documentation/media
FILES = audio.h.rst ca.h.rst dmx.h.rst frontend.h.rst net.h.rst video.h.rst \
videodev2.h.rst
videodev2.h.rst media.h.rst
TARGETS := $(addprefix $(BUILDDIR)/, $(FILES))
@ -46,5 +46,8 @@ $(BUILDDIR)/video.h.rst: ${UAPI}/dvb/video.h ${PARSER} $(SRC_DIR)/video.h.rst.ex
$(BUILDDIR)/videodev2.h.rst: ${UAPI}/videodev2.h ${PARSER} $(SRC_DIR)/videodev2.h.rst.exceptions
@$($(quiet)gen_rst)
$(BUILDDIR)/media.h.rst: ${UAPI}/media.h ${PARSER} $(SRC_DIR)/media.h.rst.exceptions
@$($(quiet)gen_rst)
cleandocs:
-rm ${TARGETS}

30
Documentation/media/media.h.rst.exceptions 100644
View File

@ -0,0 +1,30 @@
# Ignore header name
ignore define __LINUX_MEDIA_H
# Ignore macros
ignore define MEDIA_API_VERSION
ignore define MEDIA_ENT_F_BASE
ignore define MEDIA_ENT_F_OLD_BASE
ignore define MEDIA_ENT_F_OLD_SUBDEV_BASE
ignore define MEDIA_INTF_T_DVB_BASE
ignore define MEDIA_INTF_T_V4L_BASE
ignore define MEDIA_INTF_T_ALSA_BASE
#ignore legacy entity type macros
ignore define MEDIA_ENT_TYPE_SHIFT
ignore define MEDIA_ENT_TYPE_MASK
ignore define MEDIA_ENT_SUBTYPE_MASK
ignore define MEDIA_ENT_T_DEVNODE_UNKNOWN
ignore define MEDIA_ENT_T_DEVNODE
ignore define MEDIA_ENT_T_DEVNODE_V4L
ignore define MEDIA_ENT_T_DEVNODE_FB
ignore define MEDIA_ENT_T_DEVNODE_ALSA
ignore define MEDIA_ENT_T_DEVNODE_DVB
ignore define MEDIA_ENT_T_UNKNOWN
ignore define MEDIA_ENT_T_V4L2_VIDEO
ignore define MEDIA_ENT_T_V4L2_SUBDEV
ignore define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR
ignore define MEDIA_ENT_T_V4L2_SUBDEV_FLASH
ignore define MEDIA_ENT_T_V4L2_SUBDEV_LENS
ignore define MEDIA_ENT_T_V4L2_SUBDEV_DECODER
ignore define MEDIA_ENT_T_V4L2_SUBDEV_TUNER

2
Documentation/media/uapi/mediactl/media-controller.rst
View File

@ -22,7 +22,7 @@ Media Controller
media-controller-intro
media-controller-model
media-types
media-header
.. _media-user-func:

10
Documentation/media/uapi/mediactl/media-header.rst 100644
View File

@ -0,0 +1,10 @@
.. -*- coding: utf-8; mode: rst -*-
.. _media_header:
****************************
Media Controller Header File
****************************
.. kernel-include:: $BUILDDIR/media.h.rst

2
Documentation/media/uapi/mediactl/media-ioc-device-info.rst
View File

@ -1,6 +1,6 @@
.. -*- coding: utf-8; mode: rst -*-
.. _media-ioc-device-info:
.. _media_ioc_device_info:
***************************
ioctl MEDIA_IOC_DEVICE_INFO

4
Documentation/media/uapi/mediactl/media-ioc-enum-entities.rst
View File

@ -1,6 +1,6 @@
.. -*- coding: utf-8; mode: rst -*-
.. _media-ioc-enum-entities:
.. _media_ioc_enum_entities:
*****************************
ioctl MEDIA_IOC_ENUM_ENTITIES
@ -39,6 +39,8 @@ 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.
.. _media-ent-id-flag-next:
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

8
Documentation/media/uapi/mediactl/media-ioc-enum-links.rst
View File

@ -1,6 +1,6 @@
.. -*- coding: utf-8; mode: rst -*-
.. _media-ioc-enum-links:
.. _media_ioc_enum_links:
**************************
ioctl MEDIA_IOC_ENUM_LINKS
@ -44,14 +44,12 @@ 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 <media-ioc-enum-entities>`
ioctl.
with :ref:`MEDIA_IOC_ENUM_ENTITIES`.
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 <media-ioc-enum-entities>` ioctl.
outbound links can be retrieved with :ref:`MEDIA_IOC_ENUM_ENTITIES`.
Only forward links that originate at one of the entity's source pads are
returned during the enumeration process.

2
Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
View File

@ -1,6 +1,6 @@
.. -*- coding: utf-8; mode: rst -*-
.. _media-g-topology:
.. _media_ioc_g_topology:
**************************
ioctl MEDIA_IOC_G_TOPOLOGY

2
Documentation/media/uapi/mediactl/media-ioc-setup-link.rst
View File

@ -1,6 +1,6 @@
.. -*- coding: utf-8; mode: rst -*-
.. _media-ioc-setup-link:
.. _media_ioc_setup_link:
**************************
ioctl MEDIA_IOC_SETUP_LINK

117
Documentation/media/uapi/mediactl/media-types.rst
View File

@ -15,6 +15,9 @@ Types and flags used to represent the media graph elements
- .. row 1
.. _MEDIA-ENT-F-UNKNOWN:
.. _MEDIA-ENT-F-V4L2-SUBDEV-UNKNOWN:
- ``MEDIA_ENT_F_UNKNOWN`` and ``MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN``
- Unknown entity. That generally indicates that a driver didn't
@ -22,36 +25,48 @@ Types and flags used to represent the media graph elements
- .. row 2
.. _MEDIA-ENT-F-IO-V4L:
- ``MEDIA_ENT_F_IO_V4L``
- Data streaming input and/or output entity.
- .. row 3
.. _MEDIA-ENT-F-IO-VBI:
- ``MEDIA_ENT_F_IO_VBI``
- V4L VBI streaming input or output entity
- .. row 4
.. _MEDIA-ENT-F-IO-SWRADIO:
- ``MEDIA_ENT_F_IO_SWRADIO``
- V4L Software Digital Radio (SDR) streaming input or output entity
- .. row 5
.. _MEDIA-ENT-F-IO-DTV:
- ``MEDIA_ENT_F_IO_DTV``
- DVB Digital TV streaming input or output entity
- .. row 6
.. _MEDIA-ENT-F-DTV-DEMOD:
- ``MEDIA_ENT_F_DTV_DEMOD``
- Digital TV demodulator entity.
- .. row 7
.. _MEDIA-ENT-F-TS-DEMUX:
- ``MEDIA_ENT_F_TS_DEMUX``
- MPEG Transport stream demux entity. Could be implemented on
@ -59,12 +74,16 @@ Types and flags used to represent the media graph elements
- .. row 8
.. _MEDIA-ENT-F-DTV-CA:
- ``MEDIA_ENT_F_DTV_CA``
- Digital TV Conditional Access module (CAM) entity
- .. row 9
.. _MEDIA-ENT-F-DTV-NET-DECAP:
- ``MEDIA_ENT_F_DTV_NET_DECAP``
- Digital TV network ULE/MLE desencapsulation entity. Could be
@ -72,42 +91,56 @@ Types and flags used to represent the media graph elements
- .. row 10
.. _MEDIA-ENT-F-CONN-RF:
- ``MEDIA_ENT_F_CONN_RF``
- Connector for a Radio Frequency (RF) signal.
- .. row 11
.. _MEDIA-ENT-F-CONN-SVIDEO:
- ``MEDIA_ENT_F_CONN_SVIDEO``
- Connector for a S-Video signal.
- .. row 12
.. _MEDIA-ENT-F-CONN-COMPOSITE:
- ``MEDIA_ENT_F_CONN_COMPOSITE``
- Connector for a RGB composite signal.
- .. row 13
.. _MEDIA-ENT-F-CAM-SENSOR:
- ``MEDIA_ENT_F_CAM_SENSOR``
- Camera video sensor entity.
- .. row 14
.. _MEDIA-ENT-F-FLASH:
- ``MEDIA_ENT_F_FLASH``
- Flash controller entity.
- .. row 15
.. _MEDIA-ENT-F-LENS:
- ``MEDIA_ENT_F_LENS``
- Lens controller entity.
- .. row 16
.. _MEDIA-ENT-F-ATV-DECODER:
- ``MEDIA_ENT_F_ATV_DECODER``
- Analog video decoder, the basic function of the video decoder is
@ -119,6 +152,8 @@ Types and flags used to represent the media graph elements
- .. row 17
.. _MEDIA-ENT-F-TUNER:
- ``MEDIA_ENT_F_TUNER``
- Digital TV, analog TV, radio and/or software radio tuner, with
@ -129,6 +164,8 @@ Types and flags used to represent the media graph elements
- .. row 18
.. _MEDIA-ENT-F-IF-VID-DECODER:
- ``MEDIA_ENT_F_IF_VID_DECODER``
- IF-PLL video decoder. It receives the IF from a PLL and decodes
@ -139,6 +176,8 @@ Types and flags used to represent the media graph elements
- .. row 19
.. _MEDIA-ENT-F-IF-AUD-DECODER:
- ``MEDIA_ENT_F_IF_AUD_DECODER``
- IF-PLL sound decoder. It receives the IF from a PLL and decodes
@ -150,24 +189,32 @@ Types and flags used to represent the media graph elements
- .. row 20
.. _MEDIA-ENT-F-AUDIO-CAPTURE:
- ``MEDIA_ENT_F_AUDIO_CAPTURE``
- Audio Capture Function Entity.
- .. row 21
.. _MEDIA-ENT-F-AUDIO-PLAYBACK:
- ``MEDIA_ENT_F_AUDIO_PLAYBACK``
- Audio Playback Function Entity.
- .. row 22
.. _MEDIA-ENT-F-AUDIO-MIXER:
- ``MEDIA_ENT_F_AUDIO_MIXER``
- Audio Mixer Function Entity.
- .. row 23
.. _MEDIA-ENT-F-PROC-VIDEO-COMPOSER:
- ``MEDIA_ENT_F_PROC_VIDEO_COMPOSER``
- Video composer (blender). An entity capable of video
@ -179,6 +226,8 @@ Types and flags used to represent the media graph elements
- .. row 24
.. _MEDIA-ENT-F-PROC-VIDEO-PIXEL-FORMATTER:
- ``MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER``
- Video pixel formatter. An entity capable of pixel formatting
@ -191,6 +240,8 @@ Types and flags used to represent the media graph elements
- .. row 25
.. _MEDIA-ENT-F-PROC-VIDEO-PIXEL-ENC-CONV:
- ``MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV``
- Video pixel encoding converter. An entity capable of pixel
@ -203,6 +254,8 @@ Types and flags used to represent the media graph elements
- .. row 26
.. _MEDIA-ENT-F-PROC-VIDEO-LUT:
- ``MEDIA_ENT_F_PROC_VIDEO_LUT``
- Video look-up table. An entity capable of video lookup table
@ -215,6 +268,8 @@ Types and flags used to represent the media graph elements
- .. row 27
.. _MEDIA-ENT-F-PROC-VIDEO-SCALER:
- ``MEDIA_ENT_F_PROC_VIDEO_SCALER``
- Video scaler. An entity capable of video scaling must have
@ -228,6 +283,8 @@ Types and flags used to represent the media graph elements
- .. row 28
.. _MEDIA-ENT-F-PROC-VIDEO-STATISTICS:
- ``MEDIA_ENT_F_PROC_VIDEO_STATISTICS``
- Video statistics computation (histogram, 3A, ...). An entity
@ -246,6 +303,8 @@ Types and flags used to represent the media graph elements
- .. row 1
.. _MEDIA-ENT-FL-DEFAULT:
- ``MEDIA_ENT_FL_DEFAULT``
- Default entity for its type. Used to discover the default audio,
@ -253,6 +312,8 @@ Types and flags used to represent the media graph elements
- .. row 2
.. _MEDIA-ENT-FL-CONNECTOR:
- ``MEDIA_ENT_FL_CONNECTOR``
- The entity represents a data conector
@ -268,6 +329,8 @@ Types and flags used to represent the media graph elements
- .. row 1
.. _MEDIA-INTF-T-DVB-FE:
- ``MEDIA_INTF_T_DVB_FE``
- Device node interface for the Digital TV frontend
@ -276,6 +339,8 @@ Types and flags used to represent the media graph elements
- .. row 2
.. _MEDIA-INTF-T-DVB-DEMUX:
- ``MEDIA_INTF_T_DVB_DEMUX``
- Device node interface for the Digital TV demux
@ -284,6 +349,8 @@ Types and flags used to represent the media graph elements
- .. row 3
.. _MEDIA-INTF-T-DVB-DVR:
- ``MEDIA_INTF_T_DVB_DVR``
- Device node interface for the Digital TV DVR
@ -292,6 +359,8 @@ Types and flags used to represent the media graph elements
- .. row 4
.. _MEDIA-INTF-T-DVB-CA:
- ``MEDIA_INTF_T_DVB_CA``
- Device node interface for the Digital TV Conditional Access
@ -300,7 +369,9 @@ Types and flags used to represent the media graph elements
- .. row 5
- ``MEDIA_INTF_T_DVB_FE``
.. _MEDIA-INTF-T-DVB-NET:
- ``MEDIA_INTF_T_DVB_NET``
- Device node interface for the Digital TV network control
@ -308,6 +379,8 @@ Types and flags used to represent the media graph elements
- .. row 6
.. _MEDIA-INTF-T-V4L-VIDEO:
- ``MEDIA_INTF_T_V4L_VIDEO``
- Device node interface for video (V4L)
@ -316,6 +389,8 @@ Types and flags used to represent the media graph elements
- .. row 7
.. _MEDIA-INTF-T-V4L-VBI:
- ``MEDIA_INTF_T_V4L_VBI``
- Device node interface for VBI (V4L)
@ -324,6 +399,8 @@ Types and flags used to represent the media graph elements
- .. row 8
.. _MEDIA-INTF-T-V4L-RADIO:
- ``MEDIA_INTF_T_V4L_RADIO``
- Device node interface for radio (V4L)
@ -332,6 +409,8 @@ Types and flags used to represent the media graph elements
- .. row 9
.. _MEDIA-INTF-T-V4L-SUBDEV:
- ``MEDIA_INTF_T_V4L_SUBDEV``
- Device node interface for a V4L subdevice
@ -340,6 +419,8 @@ Types and flags used to represent the media graph elements
- .. row 10
.. _MEDIA-INTF-T-V4L-SWRADIO:
- ``MEDIA_INTF_T_V4L_SWRADIO``
- Device node interface for Software Defined Radio (V4L)
@ -348,6 +429,8 @@ Types and flags used to represent the media graph elements
- .. row 11
.. _MEDIA-INTF-T-ALSA-PCM-CAPTURE:
- ``MEDIA_INTF_T_ALSA_PCM_CAPTURE``
- Device node interface for ALSA PCM Capture
@ -356,6 +439,8 @@ Types and flags used to represent the media graph elements
- .. row 12
.. _MEDIA-INTF-T-ALSA-PCM-PLAYBACK:
- ``MEDIA_INTF_T_ALSA_PCM_PLAYBACK``
- Device node interface for ALSA PCM Playback
@ -364,6 +449,8 @@ Types and flags used to represent the media graph elements
- .. row 13
.. _MEDIA-INTF-T-ALSA-CONTROL:
- ``MEDIA_INTF_T_ALSA_CONTROL``
- Device node interface for ALSA Control
@ -372,6 +459,8 @@ Types and flags used to represent the media graph elements
- .. row 14
.. _MEDIA-INTF-T-ALSA-COMPRESS:
- ``MEDIA_INTF_T_ALSA_COMPRESS``
- Device node interface for ALSA Compress
@ -380,6 +469,8 @@ Types and flags used to represent the media graph elements
- .. row 15
.. _MEDIA-INTF-T-ALSA-RAWMIDI:
- ``MEDIA_INTF_T_ALSA_RAWMIDI``
- Device node interface for ALSA Raw MIDI
@ -388,6 +479,8 @@ Types and flags used to represent the media graph elements
- .. row 16
.. _MEDIA-INTF-T-ALSA-HWDEP:
- ``MEDIA_INTF_T_ALSA_HWDEP``
- Device node interface for ALSA Hardware Dependent
@ -396,6 +489,8 @@ Types and flags used to represent the media graph elements
- .. row 17
.. _MEDIA-INTF-T-ALSA-SEQUENCER:
- ``MEDIA_INTF_T_ALSA_SEQUENCER``
- Device node interface for ALSA Sequencer
@ -404,6 +499,8 @@ Types and flags used to represent the media graph elements
- .. row 18
.. _MEDIA-INTF-T-ALSA-TIMER:
- ``MEDIA_INTF_T_ALSA_TIMER``
- Device node interface for ALSA Timer
@ -421,6 +518,8 @@ Types and flags used to represent the media graph elements
- .. row 1
.. _MEDIA-PAD-FL-SINK:
- ``MEDIA_PAD_FL_SINK``
- Input pad, relative to the entity. Input pads sink data and are
@ -428,6 +527,8 @@ Types and flags used to represent the media graph elements
- .. row 2
.. _MEDIA-PAD-FL-SOURCE:
- ``MEDIA_PAD_FL_SOURCE``
- Output pad, relative to the entity. Output pads source data and
@ -435,6 +536,8 @@ Types and flags used to represent the media graph elements
- .. row 3
.. _MEDIA-PAD-FL-MUST-CONNECT:
- ``MEDIA_PAD_FL_MUST_CONNECT``
- If this flag is set and the pad is linked to any other pad, then
@ -458,6 +561,8 @@ must be set for every pad.
- .. row 1
.. _MEDIA-LNK-FL-ENABLED:
- ``MEDIA_LNK_FL_ENABLED``
- The link is enabled and can be used to transfer media data. When
@ -466,6 +571,8 @@ must be set for every pad.
- .. row 2
.. _MEDIA-LNK-FL-IMMUTABLE:
- ``MEDIA_LNK_FL_IMMUTABLE``
- The link enabled state can't be modified at runtime. An immutable
@ -473,6 +580,8 @@ must be set for every pad.
- .. row 3
.. _MEDIA-LNK-FL-DYNAMIC:
- ``MEDIA_LNK_FL_DYNAMIC``
- The link enabled state can be modified during streaming. This flag
@ -480,12 +589,18 @@ must be set for every pad.
- .. row 4
.. _MEDIA-LNK-FL-LINK-TYPE:
- ``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:
``MEDIA_LNK_FL_DATA_LINK`` if the link is between two pads
.. _MEDIA-LNK-FL-INTERFACE-LINK:
``MEDIA_LNK_FL_INTERFACE_LINK`` if the link is between an
interface and an entity