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Merge branch 'patchwork' into v4l_for_linus

소스 검색 
* patchwork: (496 commits)
  [media] v4l: tvp5150: Add missing break in set control handler
  [media] v4l: tvp5150: Don't inline the tvp5150_selmux() function
  [media] v4l: tvp5150: Compile tvp5150_link_setup out if !CONFIG_MEDIA_CONTROLLER
  [media] em28xx: don't store usb_device at struct em28xx
  [media] em28xx: use usb_interface for dev_foo() calls
  [media] em28xx: don't change the device's name
  [media] mn88472: fix chip id check on probe
  [media] mn88473: fix chip id check on probe
  [media] lirc: fix error paths in lirc_cdev_add()
  [media] s5p-mfc: Add support for MFC v8 available in Exynos 5433 SoCs
  [media] s5p-mfc: Rework clock handling
  [media] s5p-mfc: Don't keep clock prepared all the time
  [media] s5p-mfc: Kill all IS_ERR_OR_NULL in clocks management code
  [media] s5p-mfc: Remove dead conditional code
  [media] s5p-mfc: Ensure that clock is disabled before turning power off
  [media] s5p-mfc: Remove special clock rate management
  [media] s5p-mfc: Use printk_ratelimited for reporting ioctl errors
  [media] s5p-mfc: Set DMA_ATTR_ALLOC_SINGLE_PAGES
  [media] vivid: Set color_enc on HSV formats
  [media] v4l2-tpg: Init hv_enc field with a valid value
  ...
This commit is contained in:
Mauro Carvalho Chehab
2016-12-15 08:38:35 -02:00
부모 e7aa8c2eb1 d183e4efca
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144
Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst
파일 보기

@@ -48,41 +48,21 @@ returns the information to the application. The ioctl never fails.
:stub-columns: 0
:widths: 1 1 16
- .. row 1
- char
- ``driver[32]``
- The name of the cec adapter driver.
- .. row 2
- char
- ``name[32]``
- The name of this CEC adapter. The combination ``driver`` and
``name`` must be unique.
- .. row 3
- __u32
- ``capabilities``
- The capabilities of the CEC adapter, see
:ref:`cec-capabilities`.
- .. row 4
- __u32
- ``version``
- CEC Framework API version, formatted with the ``KERNEL_VERSION()``
macro.
* - char
- ``driver[32]``
- The name of the cec adapter driver.
* - char
- ``name[32]``
- The name of this CEC adapter. The combination ``driver`` and
``name`` must be unique.
* - __u32
- ``capabilities``
- The capabilities of the CEC adapter, see
:ref:`cec-capabilities`.
* - __u32
- ``version``
- CEC Framework API version, formatted with the ``KERNEL_VERSION()``
macro.
.. tabularcolumns:: |p{4.4cm}|p{2.5cm}|p{10.6cm}|
@@ -94,68 +74,50 @@ returns the information to the application. The ioctl never fails.
:stub-columns: 0
:widths: 3 1 8
* .. _`CEC-CAP-PHYS-ADDR`:
- .. _`CEC-CAP-PHYS-ADDR`:
- ``CEC_CAP_PHYS_ADDR``
- 0x00000001
- Userspace has to configure the physical address by calling
:ref:`ioctl CEC_ADAP_S_PHYS_ADDR <CEC_ADAP_S_PHYS_ADDR>`. If
this capability isn't set, then setting the physical address is
handled by the kernel whenever the EDID is set (for an HDMI
receiver) or read (for an HDMI transmitter).
* .. _`CEC-CAP-LOG-ADDRS`:
- ``CEC_CAP_PHYS_ADDR``
- ``CEC_CAP_LOG_ADDRS``
- 0x00000002
- Userspace has to configure the logical addresses by calling
:ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. If
this capability isn't set, then the kernel will have configured
this.
* .. _`CEC-CAP-TRANSMIT`:
- 0x00000001
- ``CEC_CAP_TRANSMIT``
- 0x00000004
- Userspace can transmit CEC messages by calling
:ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`. This implies that
userspace can be a follower as well, since being able to transmit
messages is a prerequisite of becoming a follower. If this
capability isn't set, then the kernel will handle all CEC
transmits and process all CEC messages it receives.
* .. _`CEC-CAP-PASSTHROUGH`:
- Userspace has to configure the physical address by calling
:ref:`ioctl CEC_ADAP_S_PHYS_ADDR <CEC_ADAP_S_PHYS_ADDR>`. If
this capability isn't set, then setting the physical address is
handled by the kernel whenever the EDID is set (for an HDMI
receiver) or read (for an HDMI transmitter).
- ``CEC_CAP_PASSTHROUGH``
- 0x00000008
- Userspace can use the passthrough mode by calling
:ref:`ioctl CEC_S_MODE <CEC_S_MODE>`.
* .. _`CEC-CAP-RC`:
- .. _`CEC-CAP-LOG-ADDRS`:
- ``CEC_CAP_RC``
- 0x00000010
- This adapter supports the remote control protocol.
* .. _`CEC-CAP-MONITOR-ALL`:
- ``CEC_CAP_LOG_ADDRS``
- 0x00000002
- Userspace has to configure the logical addresses by calling
:ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. If
this capability isn't set, then the kernel will have configured
this.
- .. _`CEC-CAP-TRANSMIT`:
- ``CEC_CAP_TRANSMIT``
- 0x00000004
- Userspace can transmit CEC messages by calling
:ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`. This implies that
userspace can be a follower as well, since being able to transmit
messages is a prerequisite of becoming a follower. If this
capability isn't set, then the kernel will handle all CEC
transmits and process all CEC messages it receives.
- .. _`CEC-CAP-PASSTHROUGH`:
- ``CEC_CAP_PASSTHROUGH``
- 0x00000008
- Userspace can use the passthrough mode by calling
:ref:`ioctl CEC_S_MODE <CEC_S_MODE>`.
- .. _`CEC-CAP-RC`:
- ``CEC_CAP_RC``
- 0x00000010
- This adapter supports the remote control protocol.
- .. _`CEC-CAP-MONITOR-ALL`:
- ``CEC_CAP_MONITOR_ALL``
- 0x00000020
- The CEC hardware can monitor all messages, not just directed and
broadcast messages.
- ``CEC_CAP_MONITOR_ALL``
- 0x00000020
- The CEC hardware can monitor all messages, not just directed and
broadcast messages.

488
Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst
파일 보기

@@ -77,134 +77,79 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0
:widths: 1 1 16
- .. row 1
- __u8
- ``log_addr[CEC_MAX_LOG_ADDRS]``
- The actual logical addresses that were claimed. This is set by the
driver. If no logical address could be claimed, then it is set to
``CEC_LOG_ADDR_INVALID``. If this adapter is Unregistered, then
``log_addr[0]`` is set to 0xf and all others to
``CEC_LOG_ADDR_INVALID``.
- .. row 2
- __u16
- ``log_addr_mask``
- The bitmask of all logical addresses this adapter has claimed. If
this adapter is Unregistered then ``log_addr_mask`` sets bit 15
and clears all other bits. If this adapter is not configured at
all, then ``log_addr_mask`` is set to 0. Set by the driver.
- .. row 3
- __u8
- ``cec_version``
- The CEC version that this adapter shall use. See
:ref:`cec-versions`. Used to implement the
``CEC_MSG_CEC_VERSION`` and ``CEC_MSG_REPORT_FEATURES`` messages.
Note that :ref:`CEC_OP_CEC_VERSION_1_3A <CEC-OP-CEC-VERSION-1-3A>` is not allowed by the CEC
framework.
- .. row 4
- __u8
- ``num_log_addrs``
- Number of logical addresses to set up. Must be ≤
``available_log_addrs`` as returned by
:ref:`CEC_ADAP_G_CAPS`. All arrays in
this structure are only filled up to index
``available_log_addrs``-1. The remaining array elements will be
ignored. Note that the CEC 2.0 standard allows for a maximum of 2
logical addresses, although some hardware has support for more.
``CEC_MAX_LOG_ADDRS`` is 4. The driver will return the actual
number of logical addresses it could claim, which may be less than
what was requested. If this field is set to 0, then the CEC
adapter shall clear all claimed logical addresses and all other
fields will be ignored.
- .. row 5
- __u32
- ``vendor_id``
- The vendor ID is a 24-bit number that identifies the specific
vendor or entity. Based on this ID vendor specific commands may be
defined. If you do not want a vendor ID then set it to
``CEC_VENDOR_ID_NONE``.
- .. row 6
- __u32
- ``flags``
- Flags. See :ref:`cec-log-addrs-flags` for a list of available flags.
- .. row 7
- char
- ``osd_name[15]``
- The On-Screen Display name as is returned by the
``CEC_MSG_SET_OSD_NAME`` message.
- .. row 8
- __u8
- ``primary_device_type[CEC_MAX_LOG_ADDRS]``
- Primary device type for each logical address. See
:ref:`cec-prim-dev-types` for possible types.
- .. row 9
- __u8
- ``log_addr_type[CEC_MAX_LOG_ADDRS]``
- Logical address types. See :ref:`cec-log-addr-types` for
possible types. The driver will update this with the actual
logical address type that it claimed (e.g. it may have to fallback
to :ref:`CEC_LOG_ADDR_TYPE_UNREGISTERED <CEC-LOG-ADDR-TYPE-UNREGISTERED>`).
- .. row 10
- __u8
- ``all_device_types[CEC_MAX_LOG_ADDRS]``
- CEC 2.0 specific: the bit mask of all device types. See
:ref:`cec-all-dev-types-flags`. It is used in the CEC 2.0
``CEC_MSG_REPORT_FEATURES`` message. For CEC 1.4 you can either leave
this field to 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
- .. row 11
- __u8
- ``features[CEC_MAX_LOG_ADDRS][12]``
- Features for each logical address. It is used in the CEC 2.0
``CEC_MSG_REPORT_FEATURES`` message. The 12 bytes include both the
RC Profile and the Device Features. For CEC 1.4 you can either leave
this field to all 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
* - __u8
- ``log_addr[CEC_MAX_LOG_ADDRS]``
- The actual logical addresses that were claimed. This is set by the
driver. If no logical address could be claimed, then it is set to
``CEC_LOG_ADDR_INVALID``. If this adapter is Unregistered, then
``log_addr[0]`` is set to 0xf and all others to
``CEC_LOG_ADDR_INVALID``.
* - __u16
- ``log_addr_mask``
- The bitmask of all logical addresses this adapter has claimed. If
this adapter is Unregistered then ``log_addr_mask`` sets bit 15
and clears all other bits. If this adapter is not configured at
all, then ``log_addr_mask`` is set to 0. Set by the driver.
* - __u8
- ``cec_version``
- The CEC version that this adapter shall use. See
:ref:`cec-versions`. Used to implement the
``CEC_MSG_CEC_VERSION`` and ``CEC_MSG_REPORT_FEATURES`` messages.
Note that :ref:`CEC_OP_CEC_VERSION_1_3A <CEC-OP-CEC-VERSION-1-3A>` is not allowed by the CEC
framework.
* - __u8
- ``num_log_addrs``
- Number of logical addresses to set up. Must be ≤
``available_log_addrs`` as returned by
:ref:`CEC_ADAP_G_CAPS`. All arrays in
this structure are only filled up to index
``available_log_addrs``-1. The remaining array elements will be
ignored. Note that the CEC 2.0 standard allows for a maximum of 2
logical addresses, although some hardware has support for more.
``CEC_MAX_LOG_ADDRS`` is 4. The driver will return the actual
number of logical addresses it could claim, which may be less than
what was requested. If this field is set to 0, then the CEC
adapter shall clear all claimed logical addresses and all other
fields will be ignored.
* - __u32
- ``vendor_id``
- The vendor ID is a 24-bit number that identifies the specific
vendor or entity. Based on this ID vendor specific commands may be
defined. If you do not want a vendor ID then set it to
``CEC_VENDOR_ID_NONE``.
* - __u32
- ``flags``
- Flags. See :ref:`cec-log-addrs-flags` for a list of available flags.
* - char
- ``osd_name[15]``
- The On-Screen Display name as is returned by the
``CEC_MSG_SET_OSD_NAME`` message.
* - __u8
- ``primary_device_type[CEC_MAX_LOG_ADDRS]``
- Primary device type for each logical address. See
:ref:`cec-prim-dev-types` for possible types.
* - __u8
- ``log_addr_type[CEC_MAX_LOG_ADDRS]``
- Logical address types. See :ref:`cec-log-addr-types` for
possible types. The driver will update this with the actual
logical address type that it claimed (e.g. it may have to fallback
to :ref:`CEC_LOG_ADDR_TYPE_UNREGISTERED <CEC-LOG-ADDR-TYPE-UNREGISTERED>`).
* - __u8
- ``all_device_types[CEC_MAX_LOG_ADDRS]``
- CEC 2.0 specific: the bit mask of all device types. See
:ref:`cec-all-dev-types-flags`. It is used in the CEC 2.0
``CEC_MSG_REPORT_FEATURES`` message. For CEC 1.4 you can either leave
this field to 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
* - __u8
- ``features[CEC_MAX_LOG_ADDRS][12]``
- Features for each logical address. It is used in the CEC 2.0
``CEC_MSG_REPORT_FEATURES`` message. The 12 bytes include both the
RC Profile and the Device Features. For CEC 1.4 you can either leave
this field to all 0, or fill it in according to the CEC 2.0 guidelines to
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
.. _cec-log-addrs-flags:
@@ -213,17 +158,33 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0
:widths: 3 1 4
* .. _`CEC-LOG-ADDRS-FL-ALLOW-UNREG-FALLBACK`:
- .. _`CEC-LOG-ADDRS-FL-ALLOW-UNREG-FALLBACK`:
- ``CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK``
- 1
- By default if no logical address of the requested type can be claimed, then
it will go back to the unconfigured state. If this flag is set, then it will
fallback to the Unregistered logical address. Note that if the Unregistered
logical address was explicitly requested, then this flag has no effect.
* .. _`CEC-LOG-ADDRS-FL-ALLOW-RC-PASSTHRU`:
- ``CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK``
- ``CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU``
- 2
- By default the ``CEC_MSG_USER_CONTROL_PRESSED`` and ``CEC_MSG_USER_CONTROL_RELEASED``
messages are only passed on to the follower(s), if any. If this flag is set,
then these messages are also passed on to the remote control input subsystem
and will appear as keystrokes. This features needs to be enabled explicitly.
If CEC is used to enter e.g. passwords, then you may not want to enable this
to avoid trivial snooping of the keystrokes.
* .. _`CEC-LOG-ADDRS-FL-CDC-ONLY`:
- 1
- `CEC_LOG_ADDRS_FL_CDC_ONLY`
- 4
- If this flag is set, then the device is CDC-Only. CDC-Only CEC devices
are CEC devices that can only handle CDC messages.
All other messages are ignored.
- By default if no logical address of the requested type can be claimed, then
it will go back to the unconfigured state. If this flag is set, then it will
fallback to the Unregistered logical address. Note that if the Unregistered
logical address was explicitly requested, then this flag has no effect.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
@@ -234,30 +195,21 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0
:widths: 3 1 4
* .. _`CEC-OP-CEC-VERSION-1-3A`:
- .. _`CEC-OP-CEC-VERSION-1-3A`:
- ``CEC_OP_CEC_VERSION_1_3A``
- 4
- CEC version according to the HDMI 1.3a standard.
* .. _`CEC-OP-CEC-VERSION-1-4B`:
- ``CEC_OP_CEC_VERSION_1_3A``
- ``CEC_OP_CEC_VERSION_1_4B``
- 5
- CEC version according to the HDMI 1.4b standard.
* .. _`CEC-OP-CEC-VERSION-2-0`:
- 4
- CEC version according to the HDMI 1.3a standard.
- .. _`CEC-OP-CEC-VERSION-1-4B`:
- ``CEC_OP_CEC_VERSION_1_4B``
- 5
- CEC version according to the HDMI 1.4b standard.
- .. _`CEC-OP-CEC-VERSION-2-0`:
- ``CEC_OP_CEC_VERSION_2_0``
- 6
- CEC version according to the HDMI 2.0 standard.
- ``CEC_OP_CEC_VERSION_2_0``
- 6
- CEC version according to the HDMI 2.0 standard.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
@@ -269,62 +221,41 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0
:widths: 3 1 4
* .. _`CEC-OP-PRIM-DEVTYPE-TV`:
- .. _`CEC-OP-PRIM-DEVTYPE-TV`:
- ``CEC_OP_PRIM_DEVTYPE_TV``
- 0
- Use for a TV.
* .. _`CEC-OP-PRIM-DEVTYPE-RECORD`:
- ``CEC_OP_PRIM_DEVTYPE_TV``
- ``CEC_OP_PRIM_DEVTYPE_RECORD``
- 1
- Use for a recording device.
* .. _`CEC-OP-PRIM-DEVTYPE-TUNER`:
- 0
- ``CEC_OP_PRIM_DEVTYPE_TUNER``
- 3
- Use for a device with a tuner.
* .. _`CEC-OP-PRIM-DEVTYPE-PLAYBACK`:
- Use for a TV.
- ``CEC_OP_PRIM_DEVTYPE_PLAYBACK``
- 4
- Use for a playback device.
* .. _`CEC-OP-PRIM-DEVTYPE-AUDIOSYSTEM`:
- .. _`CEC-OP-PRIM-DEVTYPE-RECORD`:
- ``CEC_OP_PRIM_DEVTYPE_AUDIOSYSTEM``
- 5
- Use for an audio system (e.g. an audio/video receiver).
* .. _`CEC-OP-PRIM-DEVTYPE-SWITCH`:
- ``CEC_OP_PRIM_DEVTYPE_RECORD``
- ``CEC_OP_PRIM_DEVTYPE_SWITCH``
- 6
- Use for a CEC switch.
* .. _`CEC-OP-PRIM-DEVTYPE-VIDEOPROC`:
- 1
- Use for a recording device.
- .. _`CEC-OP-PRIM-DEVTYPE-TUNER`:
- ``CEC_OP_PRIM_DEVTYPE_TUNER``
- 3
- Use for a device with a tuner.
- .. _`CEC-OP-PRIM-DEVTYPE-PLAYBACK`:
- ``CEC_OP_PRIM_DEVTYPE_PLAYBACK``
- 4
- Use for a playback device.
- .. _`CEC-OP-PRIM-DEVTYPE-AUDIOSYSTEM`:
- ``CEC_OP_PRIM_DEVTYPE_AUDIOSYSTEM``
- 5
- Use for an audio system (e.g. an audio/video receiver).
- .. _`CEC-OP-PRIM-DEVTYPE-SWITCH`:
- ``CEC_OP_PRIM_DEVTYPE_SWITCH``
- 6
- Use for a CEC switch.
- .. _`CEC-OP-PRIM-DEVTYPE-VIDEOPROC`:
- ``CEC_OP_PRIM_DEVTYPE_VIDEOPROC``
- 7
- Use for a video processor device.
- ``CEC_OP_PRIM_DEVTYPE_VIDEOPROC``
- 7
- Use for a video processor device.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
@@ -336,64 +267,43 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0
:widths: 3 1 16
* .. _`CEC-LOG-ADDR-TYPE-TV`:
- .. _`CEC-LOG-ADDR-TYPE-TV`:
- ``CEC_LOG_ADDR_TYPE_TV``
- 0
- Use for a TV.
* .. _`CEC-LOG-ADDR-TYPE-RECORD`:
- ``CEC_LOG_ADDR_TYPE_TV``
- ``CEC_LOG_ADDR_TYPE_RECORD``
- 1
- Use for a recording device.
* .. _`CEC-LOG-ADDR-TYPE-TUNER`:
- 0
- ``CEC_LOG_ADDR_TYPE_TUNER``
- 2
- Use for a tuner device.
* .. _`CEC-LOG-ADDR-TYPE-PLAYBACK`:
- Use for a TV.
- ``CEC_LOG_ADDR_TYPE_PLAYBACK``
- 3
- Use for a playback device.
* .. _`CEC-LOG-ADDR-TYPE-AUDIOSYSTEM`:
- .. _`CEC-LOG-ADDR-TYPE-RECORD`:
- ``CEC_LOG_ADDR_TYPE_AUDIOSYSTEM``
- 4
- Use for an audio system device.
* .. _`CEC-LOG-ADDR-TYPE-SPECIFIC`:
- ``CEC_LOG_ADDR_TYPE_RECORD``
- ``CEC_LOG_ADDR_TYPE_SPECIFIC``
- 5
- Use for a second TV or for a video processor device.
* .. _`CEC-LOG-ADDR-TYPE-UNREGISTERED`:
- 1
- Use for a recording device.
- .. _`CEC-LOG-ADDR-TYPE-TUNER`:
- ``CEC_LOG_ADDR_TYPE_TUNER``
- 2
- Use for a tuner device.
- .. _`CEC-LOG-ADDR-TYPE-PLAYBACK`:
- ``CEC_LOG_ADDR_TYPE_PLAYBACK``
- 3
- Use for a playback device.
- .. _`CEC-LOG-ADDR-TYPE-AUDIOSYSTEM`:
- ``CEC_LOG_ADDR_TYPE_AUDIOSYSTEM``
- 4
- Use for an audio system device.
- .. _`CEC-LOG-ADDR-TYPE-SPECIFIC`:
- ``CEC_LOG_ADDR_TYPE_SPECIFIC``
- 5
- Use for a second TV or for a video processor device.
- .. _`CEC-LOG-ADDR-TYPE-UNREGISTERED`:
- ``CEC_LOG_ADDR_TYPE_UNREGISTERED``
- 6
- Use this if you just want to remain unregistered. Used for pure
CEC switches or CDC-only devices (CDC: Capability Discovery and
Control).
- ``CEC_LOG_ADDR_TYPE_UNREGISTERED``
- 6
- Use this if you just want to remain unregistered. Used for pure
CEC switches or CDC-only devices (CDC: Capability Discovery and
Control).
@@ -406,54 +316,36 @@ logical address types are already defined will return with error ``EBUSY``.
:stub-columns: 0
:widths: 3 1 4
* .. _`CEC-OP-ALL-DEVTYPE-TV`:
- .. _`CEC-OP-ALL-DEVTYPE-TV`:
- ``CEC_OP_ALL_DEVTYPE_TV``
- 0x80
- This supports the TV type.
* .. _`CEC-OP-ALL-DEVTYPE-RECORD`:
- ``CEC_OP_ALL_DEVTYPE_TV``
- ``CEC_OP_ALL_DEVTYPE_RECORD``
- 0x40
- This supports the Recording type.
* .. _`CEC-OP-ALL-DEVTYPE-TUNER`:
- 0x80
- ``CEC_OP_ALL_DEVTYPE_TUNER``
- 0x20
- This supports the Tuner type.
* .. _`CEC-OP-ALL-DEVTYPE-PLAYBACK`:
- This supports the TV type.
- ``CEC_OP_ALL_DEVTYPE_PLAYBACK``
- 0x10
- This supports the Playback type.
* .. _`CEC-OP-ALL-DEVTYPE-AUDIOSYSTEM`:
- .. _`CEC-OP-ALL-DEVTYPE-RECORD`:
- ``CEC_OP_ALL_DEVTYPE_AUDIOSYSTEM``
- 0x08
- This supports the Audio System type.
* .. _`CEC-OP-ALL-DEVTYPE-SWITCH`:
- ``CEC_OP_ALL_DEVTYPE_RECORD``
- 0x40
- This supports the Recording type.
- .. _`CEC-OP-ALL-DEVTYPE-TUNER`:
- ``CEC_OP_ALL_DEVTYPE_TUNER``
- 0x20
- This supports the Tuner type.
- .. _`CEC-OP-ALL-DEVTYPE-PLAYBACK`:
- ``CEC_OP_ALL_DEVTYPE_PLAYBACK``
- 0x10
- This supports the Playback type.
- .. _`CEC-OP-ALL-DEVTYPE-AUDIOSYSTEM`:
- ``CEC_OP_ALL_DEVTYPE_AUDIOSYSTEM``
- 0x08
- This supports the Audio System type.
- .. _`CEC-OP-ALL-DEVTYPE-SWITCH`:
- ``CEC_OP_ALL_DEVTYPE_SWITCH``
- 0x04
- This supports the CEC Switch or Video Processing type.
- ``CEC_OP_ALL_DEVTYPE_SWITCH``
- 0x04
- This supports the CEC Switch or Video Processing type.

180
Documentation/media/uapi/cec/cec-ioc-dqevent.rst
파일 보기

@@ -58,26 +58,16 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0
:widths: 1 1 8
- .. row 1
- __u16
- ``phys_addr``
- The current physical address. This is ``CEC_PHYS_ADDR_INVALID`` if no
* - __u16
- ``phys_addr``
- The current physical address. This is ``CEC_PHYS_ADDR_INVALID`` if no
valid physical address is set.
- .. row 2
- __u16
- ``log_addr_mask``
- The current set of claimed logical addresses. This is 0 if no logical
addresses are claimed or if ``phys_addr`` is ``CEC_PHYS_ADDR_INVALID``.
If bit 15 is set (``1 << CEC_LOG_ADDR_UNREGISTERED``) then this device
has the unregistered logical address. In that case all other bits are 0.
* - __u16
- ``log_addr_mask``
- The current set of claimed logical addresses. This is 0 if no logical
addresses are claimed or if ``phys_addr`` is ``CEC_PHYS_ADDR_INVALID``.
If bit 15 is set (``1 << CEC_LOG_ADDR_UNREGISTERED``) then this device
has the unregistered logical address. In that case all other bits are 0.
.. c:type:: cec_event_lost_msgs
@@ -89,22 +79,17 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0
:widths: 1 1 16
- .. row 1
- __u32
- ``lost_msgs``
- Set to the number of lost messages since the filehandle was opened
or since the last time this event was dequeued for this
filehandle. The messages lost are the oldest messages. So when a
new message arrives and there is no more room, then the oldest
message is discarded to make room for the new one. The internal
size of the message queue guarantees that all messages received in
the last two seconds will be stored. Since messages should be
replied to within a second according to the CEC specification,
this is more than enough.
* - __u32
- ``lost_msgs``
- Set to the number of lost messages since the filehandle was opened
or since the last time this event was dequeued for this
filehandle. The messages lost are the oldest messages. So when a
new message arrives and there is no more room, then the oldest
message is discarded to make room for the new one. The internal
size of the message queue guarantees that all messages received in
the last two seconds will be stored. Since messages should be
replied to within a second according to the CEC specification,
this is more than enough.
.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{2.5cm}|p{8.8cm}|
@@ -116,62 +101,32 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0
:widths: 1 1 1 8
* - __u64
- ``ts``
- :cspan:`1` Timestamp of the event in ns.
- .. row 1
- __u64
- ``ts``
- :cspan:`1` Timestamp of the event in ns.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
the same clock from userspace use :c:func:`clock_gettime`.
- .. row 2
- __u32
- ``event``
- :cspan:`1` The CEC event type, see :ref:`cec-events`.
- .. row 3
- __u32
- ``flags``
- :cspan:`1` Event flags, see :ref:`cec-event-flags`.
- .. row 4
- union
- (anonymous)
-
-
- .. row 5
-
- struct cec_event_state_change
- ``state_change``
- The new adapter state as sent by the :ref:`CEC_EVENT_STATE_CHANGE <CEC-EVENT-STATE-CHANGE>`
event.
- .. row 6
-
- struct cec_event_lost_msgs
- ``lost_msgs``
- The number of lost messages as sent by the :ref:`CEC_EVENT_LOST_MSGS <CEC-EVENT-LOST-MSGS>`
event.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
the same clock from userspace use :c:func:`clock_gettime`.
* - __u32
- ``event``
- :cspan:`1` The CEC event type, see :ref:`cec-events`.
* - __u32
- ``flags``
- :cspan:`1` Event flags, see :ref:`cec-event-flags`.
* - union
- (anonymous)
-
-
* -
- struct cec_event_state_change
- ``state_change``
- The new adapter state as sent by the :ref:`CEC_EVENT_STATE_CHANGE <CEC-EVENT-STATE-CHANGE>`
event.
* -
- struct cec_event_lost_msgs
- ``lost_msgs``
- The number of lost messages as sent by the :ref:`CEC_EVENT_LOST_MSGS <CEC-EVENT-LOST-MSGS>`
event.
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
@@ -183,25 +138,19 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0
:widths: 3 1 16
* .. _`CEC-EVENT-STATE-CHANGE`:
- .. _`CEC-EVENT-STATE-CHANGE`:
- ``CEC_EVENT_STATE_CHANGE``
- 1
- Generated when the CEC Adapter's state changes. When open() is
called an initial event will be generated for that filehandle with
the CEC Adapter's state at that time.
* .. _`CEC-EVENT-LOST-MSGS`:
- ``CEC_EVENT_STATE_CHANGE``
- 1
- Generated when the CEC Adapter's state changes. When open() is
called an initial event will be generated for that filehandle with
the CEC Adapter's state at that time.
- .. _`CEC-EVENT-LOST-MSGS`:
- ``CEC_EVENT_LOST_MSGS``
- 2
- Generated if one or more CEC messages were lost because the
application didn't dequeue CEC messages fast enough.
- ``CEC_EVENT_LOST_MSGS``
- 2
- Generated if one or more CEC messages were lost because the
application didn't dequeue CEC messages fast enough.
.. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}|
@@ -213,17 +162,14 @@ it is guaranteed that the state did change in between the two events.
:stub-columns: 0
:widths: 3 1 8
* .. _`CEC-EVENT-FL-INITIAL-VALUE`:
- .. _`CEC-EVENT-FL-INITIAL-VALUE`:
- ``CEC_EVENT_FL_INITIAL_VALUE``
- 1
- Set for the initial events that are generated when the device is
opened. See the table above for which events do this. This allows
applications to learn the initial state of the CEC adapter at
open() time.
- ``CEC_EVENT_FL_INITIAL_VALUE``
- 1
- Set for the initial events that are generated when the device is
opened. See the table above for which events do this. This allows
applications to learn the initial state of the CEC adapter at
open() time.

281
Documentation/media/uapi/cec/cec-ioc-g-mode.rst
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@@ -83,37 +83,28 @@ Available initiator modes are:
:stub-columns: 0
:widths: 3 1 16
* .. _`CEC-MODE-NO-INITIATOR`:
- .. _`CEC-MODE-NO-INITIATOR`:
- ``CEC_MODE_NO_INITIATOR``
- 0x0
- This is not an initiator, i.e. it cannot transmit CEC messages or
make any other changes to the CEC adapter.
* .. _`CEC-MODE-INITIATOR`:
- ``CEC_MODE_NO_INITIATOR``
- ``CEC_MODE_INITIATOR``
- 0x1
- This is an initiator (the default when the device is opened) and
it can transmit CEC messages and make changes to the CEC adapter,
unless there is an exclusive initiator.
* .. _`CEC-MODE-EXCL-INITIATOR`:
- 0x0
- This is not an initiator, i.e. it cannot transmit CEC messages or
make any other changes to the CEC adapter.
- .. _`CEC-MODE-INITIATOR`:
- ``CEC_MODE_INITIATOR``
- 0x1
- This is an initiator (the default when the device is opened) and
it can transmit CEC messages and make changes to the CEC adapter,
unless there is an exclusive initiator.
- .. _`CEC-MODE-EXCL-INITIATOR`:
- ``CEC_MODE_EXCL_INITIATOR``
- 0x2
- This is an exclusive initiator and this file descriptor is the
only one that can transmit CEC messages and make changes to the
CEC adapter. If someone else is already the exclusive initiator
then an attempt to become one will return the ``EBUSY`` error code
error.
- ``CEC_MODE_EXCL_INITIATOR``
- 0x2
- This is an exclusive initiator and this file descriptor is the
only one that can transmit CEC messages and make changes to the
CEC adapter. If someone else is already the exclusive initiator
then an attempt to become one will return the ``EBUSY`` error code
error.
Available follower modes are:
@@ -127,86 +118,68 @@ Available follower modes are:
:stub-columns: 0
:widths: 3 1 16
* .. _`CEC-MODE-NO-FOLLOWER`:
- .. _`CEC-MODE-NO-FOLLOWER`:
- ``CEC_MODE_NO_FOLLOWER``
- 0x00
- This is not a follower (the default when the device is opened).
* .. _`CEC-MODE-FOLLOWER`:
- ``CEC_MODE_NO_FOLLOWER``
- ``CEC_MODE_FOLLOWER``
- 0x10
- This is a follower and it will receive CEC messages unless there
is an exclusive follower. You cannot become a follower if
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`
was specified, the ``EINVAL`` error code is returned in that case.
* .. _`CEC-MODE-EXCL-FOLLOWER`:
- 0x00
- ``CEC_MODE_EXCL_FOLLOWER``
- 0x20
- This is an exclusive follower and only this file descriptor will
receive CEC messages for processing. If someone else is already
the exclusive follower then an attempt to become one will return
the ``EBUSY`` error code. You cannot become a follower if
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`
was specified, the ``EINVAL`` error code is returned in that case.
* .. _`CEC-MODE-EXCL-FOLLOWER-PASSTHRU`:
- This is not a follower (the default when the device is opened).
- ``CEC_MODE_EXCL_FOLLOWER_PASSTHRU``
- 0x30
- This is an exclusive follower and only this file descriptor will
receive CEC messages for processing. In addition it will put the
CEC device into passthrough mode, allowing the exclusive follower
to handle most core messages instead of relying on the CEC
framework for that. If someone else is already the exclusive
follower then an attempt to become one will return the ``EBUSY`` error
code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>`
is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified,
the ``EINVAL`` error code is returned in that case.
* .. _`CEC-MODE-MONITOR`:
- .. _`CEC-MODE-FOLLOWER`:
- ``CEC_MODE_MONITOR``
- 0xe0
- Put the file descriptor into monitor mode. Can only be used in
combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error
code will be returned. In monitor mode all messages this CEC
device transmits and all messages it receives (both broadcast
messages and directed messages for one its logical addresses) will
be reported. This is very useful for debugging. This is only
allowed if the process has the ``CAP_NET_ADMIN`` capability. If
that is not set, then the ``EPERM`` error code is returned.
* .. _`CEC-MODE-MONITOR-ALL`:
- ``CEC_MODE_FOLLOWER``
- 0x10
- This is a follower and it will receive CEC messages unless there
is an exclusive follower. You cannot become a follower if
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`
was specified, the ``EINVAL`` error code is returned in that case.
- .. _`CEC-MODE-EXCL-FOLLOWER`:
- ``CEC_MODE_EXCL_FOLLOWER``
- 0x20
- This is an exclusive follower and only this file descriptor will
receive CEC messages for processing. If someone else is already
the exclusive follower then an attempt to become one will return
the ``EBUSY`` error code. You cannot become a follower if
:ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`
was specified, the ``EINVAL`` error code is returned in that case.
- .. _`CEC-MODE-EXCL-FOLLOWER-PASSTHRU`:
- ``CEC_MODE_EXCL_FOLLOWER_PASSTHRU``
- 0x30
- This is an exclusive follower and only this file descriptor will
receive CEC messages for processing. In addition it will put the
CEC device into passthrough mode, allowing the exclusive follower
to handle most core messages instead of relying on the CEC
framework for that. If someone else is already the exclusive
follower then an attempt to become one will return the ``EBUSY`` error
code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>`
is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified,
the ``EINVAL`` error code is returned in that case.
- .. _`CEC-MODE-MONITOR`:
- ``CEC_MODE_MONITOR``
- 0xe0
- Put the file descriptor into monitor mode. Can only be used in
combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error
code will be returned. In monitor mode all messages this CEC
device transmits and all messages it receives (both broadcast
messages and directed messages for one its logical addresses) will
be reported. This is very useful for debugging. This is only
allowed if the process has the ``CAP_NET_ADMIN`` capability. If
that is not set, then the ``EPERM`` error code is returned.
- .. _`CEC-MODE-MONITOR-ALL`:
- ``CEC_MODE_MONITOR_ALL``
- 0xf0
- Put the file descriptor into 'monitor all' mode. Can only be used
in combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise
the ``EINVAL`` error code will be returned. In 'monitor all' mode all messages
this CEC device transmits and all messages it receives, including
directed messages for other CEC devices will be reported. This is
very useful for debugging, but not all devices support this. This
mode requires that the :ref:`CEC_CAP_MONITOR_ALL <CEC-CAP-MONITOR-ALL>` capability is set,
otherwise the ``EINVAL`` error code is returned. This is only allowed if
the process has the ``CAP_NET_ADMIN`` capability. If that is not
set, then the ``EPERM`` error code is returned.
- ``CEC_MODE_MONITOR_ALL``
- 0xf0
- Put the file descriptor into 'monitor all' mode. Can only be used
in combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise
the ``EINVAL`` error code will be returned. In 'monitor all' mode all messages
this CEC device transmits and all messages it receives, including
directed messages for other CEC devices will be reported. This is
very useful for debugging, but not all devices support this. This
mode requires that the :ref:`CEC_CAP_MONITOR_ALL <CEC-CAP-MONITOR-ALL>` capability is set,
otherwise the ``EINVAL`` error code is returned. This is only allowed if
the process has the ``CAP_NET_ADMIN`` capability. If that is not
set, then the ``EPERM`` error code is returned.
Core message processing details:
@@ -220,76 +193,58 @@ Core message processing details:
:stub-columns: 0
:widths: 1 8
* .. _`CEC-MSG-GET-CEC-VERSION`:
- .. _`CEC-MSG-GET-CEC-VERSION`:
- ``CEC_MSG_GET_CEC_VERSION``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the CEC version that was
set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
* .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`:
- ``CEC_MSG_GET_CEC_VERSION``
- ``CEC_MSG_GIVE_DEVICE_VENDOR_ID``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the vendor ID that was
set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
* .. _`CEC-MSG-ABORT`:
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the CEC version that was
set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
- ``CEC_MSG_ABORT``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return a feature refused
message as per the specification.
* .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`:
- .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`:
- ``CEC_MSG_GIVE_PHYSICAL_ADDR``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current physical
address.
* .. _`CEC-MSG-GIVE-OSD-NAME`:
- ``CEC_MSG_GIVE_DEVICE_VENDOR_ID``
- ``CEC_MSG_GIVE_OSD_NAME``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current OSD name as
was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
* .. _`CEC-MSG-GIVE-FEATURES`:
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return the vendor ID that was
set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
- ``CEC_MSG_GIVE_FEATURES``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current features as
was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
or the message is ignored if the CEC version was older than 2.0.
* .. _`CEC-MSG-USER-CONTROL-PRESSED`:
- .. _`CEC-MSG-ABORT`:
- ``CEC_MSG_USER_CONTROL_PRESSED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
press. This message is always passed on to userspace.
* .. _`CEC-MSG-USER-CONTROL-RELEASED`:
- ``CEC_MSG_ABORT``
- ``CEC_MSG_USER_CONTROL_RELEASED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
release. This message is always passed on to userspace.
* .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`:
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will return a feature refused
message as per the specification.
- .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`:
- ``CEC_MSG_GIVE_PHYSICAL_ADDR``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current physical
address.
- .. _`CEC-MSG-GIVE-OSD-NAME`:
- ``CEC_MSG_GIVE_OSD_NAME``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current OSD name as
was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
- .. _`CEC-MSG-GIVE-FEATURES`:
- ``CEC_MSG_GIVE_FEATURES``
- When in passthrough mode this message has to be handled by
userspace, otherwise the core will report the current features as
was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
or the message is ignored if the CEC version was older than 2.0.
- .. _`CEC-MSG-USER-CONTROL-PRESSED`:
- ``CEC_MSG_USER_CONTROL_PRESSED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
press. This message is always passed on to userspace.
- .. _`CEC-MSG-USER-CONTROL-RELEASED`:
- ``CEC_MSG_USER_CONTROL_RELEASED``
- If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
release. This message is always passed on to userspace.
- .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`:
- ``CEC_MSG_REPORT_PHYSICAL_ADDR``
- The CEC framework will make note of the reported physical address
and then just pass the message on to userspace.
- ``CEC_MSG_REPORT_PHYSICAL_ADDR``
- The CEC framework will make note of the reported physical address
and then just pass the message on to userspace.

398
Documentation/media/uapi/cec/cec-ioc-receive.rst
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@@ -86,173 +86,126 @@ result.
:stub-columns: 0
:widths: 1 1 16
* - __u64
- ``tx_ts``
- Timestamp in ns of when the last byte of the message was transmitted.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
the same clock from userspace use :c:func:`clock_gettime`.
* - __u64
- ``rx_ts``
- Timestamp in ns of when the last byte of the message was received.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
the same clock from userspace use :c:func:`clock_gettime`.
* - __u32
- ``len``
- The length of the message. For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` this is filled in
by the application. The driver will fill this in for
:ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`. For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` it will be
filled in by the driver with the length of the reply message if ``reply`` was set.
* - __u32
- ``timeout``
- The timeout in milliseconds. This is the time the device will wait
for a message to be received before timing out. If it is set to 0,
then it will wait indefinitely when it is called by :ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
If it is 0 and it is called by :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`,
then it will be replaced by 1000 if the ``reply`` is non-zero or
ignored if ``reply`` is 0.
* - __u32
- ``sequence``
- A non-zero sequence number is automatically assigned by the CEC framework
for all transmitted messages. It is used by the CEC framework when it queues
the transmit result (when transmit was called in non-blocking mode). This
allows the application to associate the received message with the original
transmit.
* - __u32
- ``flags``
- Flags. See :ref:`cec-msg-flags` for a list of available flags.
* - __u8
- ``tx_status``
- The status bits of the transmitted message. See
:ref:`cec-tx-status` for the possible status values. It is 0 if
this messages was received, not transmitted.
* - __u8
- ``msg[16]``
- The message payload. For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` this is filled in by the
application. The driver will fill this in for :ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` it will be filled in by the driver with
the payload of the reply message if ``timeout`` was set.
* - __u8
- ``reply``
- Wait until this message is replied. If ``reply`` is 0 and the
``timeout`` is 0, then don't wait for a reply but return after
transmitting the message. Ignored by :ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
The case where ``reply`` is 0 (this is the opcode for the Feature Abort
message) and ``timeout`` is non-zero is specifically allowed to make it
possible to send a message and wait up to ``timeout`` milliseconds for a
Feature Abort reply. In this case ``rx_status`` will either be set
to :ref:`CEC_RX_STATUS_TIMEOUT <CEC-RX-STATUS-TIMEOUT>` or
:ref:`CEC_RX_STATUS_FEATURE_ABORT <CEC-RX-STATUS-FEATURE-ABORT>`.
- .. row 1
If the transmitter message is ``CEC_MSG_INITIATE_ARC`` then the ``reply``
values ``CEC_MSG_REPORT_ARC_INITIATED`` and ``CEC_MSG_REPORT_ARC_TERMINATED``
are processed differently: either value will match both possible replies.
The reason is that the ``CEC_MSG_INITIATE_ARC`` message is the only CEC
message that has two possible replies other than Feature Abort. The
``reply`` field will be updated with the actual reply so that it is
synchronized with the contents of the received message.
* - __u8
- ``rx_status``
- The status bits of the received message. See
:ref:`cec-rx-status` for the possible status values. It is 0 if
this message was transmitted, not received, unless this is the
reply to a transmitted message. In that case both ``rx_status``
and ``tx_status`` are set.
* - __u8
- ``tx_status``
- The status bits of the transmitted message. See
:ref:`cec-tx-status` for the possible status values. It is 0 if
this messages was received, not transmitted.
* - __u8
- ``tx_arb_lost_cnt``
- A counter of the number of transmit attempts that resulted in the
Arbitration Lost error. This is only set if the hardware supports
this, otherwise it is always 0. This counter is only valid if the
:ref:`CEC_TX_STATUS_ARB_LOST <CEC-TX-STATUS-ARB-LOST>` status bit is set.
* - __u8
- ``tx_nack_cnt``
- A counter of the number of transmit attempts that resulted in the
Not Acknowledged error. This is only set if the hardware supports
this, otherwise it is always 0. This counter is only valid if the
:ref:`CEC_TX_STATUS_NACK <CEC-TX-STATUS-NACK>` status bit is set.
* - __u8
- ``tx_low_drive_cnt``
- A counter of the number of transmit attempts that resulted in the
Arbitration Lost error. This is only set if the hardware supports
this, otherwise it is always 0. This counter is only valid if the
:ref:`CEC_TX_STATUS_LOW_DRIVE <CEC-TX-STATUS-LOW-DRIVE>` status bit is set.
* - __u8
- ``tx_error_cnt``
- A counter of the number of transmit errors other than Arbitration
Lost or Not Acknowledged. This is only set if the hardware
supports this, otherwise it is always 0. This counter is only
valid if the :ref:`CEC_TX_STATUS_ERROR <CEC-TX-STATUS-ERROR>` status bit is set.
- __u64
- ``tx_ts``
.. _cec-msg-flags:
- Timestamp in ns of when the last byte of the message was transmitted.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
the same clock from userspace use :c:func:`clock_gettime`.
.. flat-table:: Flags for struct cec_msg
:header-rows: 0
:stub-columns: 0
:widths: 3 1 4
- .. row 2
* .. _`CEC-MSG-FL-REPLY-TO-FOLLOWERS`:
- __u64
- ``rx_ts``
- Timestamp in ns of when the last byte of the message was received.
The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
the same clock from userspace use :c:func:`clock_gettime`.
- .. row 3
- __u32
- ``len``
- The length of the message. For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` this is filled in
by the application. The driver will fill this in for
:ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`. For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` it will be
filled in by the driver with the length of the reply message if ``reply`` was set.
- .. row 4
- __u32
- ``timeout``
- The timeout in milliseconds. This is the time the device will wait
for a message to be received before timing out. If it is set to 0,
then it will wait indefinitely when it is called by :ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
If it is 0 and it is called by :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`,
then it will be replaced by 1000 if the ``reply`` is non-zero or
ignored if ``reply`` is 0.
- .. row 5
- __u32
- ``sequence``
- A non-zero sequence number is automatically assigned by the CEC framework
for all transmitted messages. It is used by the CEC framework when it queues
the transmit result (when transmit was called in non-blocking mode). This
allows the application to associate the received message with the original
transmit.
- .. row 6
- __u32
- ``flags``
- Flags. No flags are defined yet, so set this to 0.
- .. row 7
- __u8
- ``tx_status``
- The status bits of the transmitted message. See
:ref:`cec-tx-status` for the possible status values. It is 0 if
this messages was received, not transmitted.
- .. row 8
- __u8
- ``msg[16]``
- The message payload. For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` this is filled in by the
application. The driver will fill this in for :ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
For :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` it will be filled in by the driver with
the payload of the reply message if ``timeout`` was set.
- .. row 8
- __u8
- ``reply``
- Wait until this message is replied. If ``reply`` is 0 and the
``timeout`` is 0, then don't wait for a reply but return after
transmitting the message. Ignored by :ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
The case where ``reply`` is 0 (this is the opcode for the Feature Abort
message) and ``timeout`` is non-zero is specifically allowed to make it
possible to send a message and wait up to ``timeout`` milliseconds for a
Feature Abort reply. In this case ``rx_status`` will either be set
to :ref:`CEC_RX_STATUS_TIMEOUT <CEC-RX-STATUS-TIMEOUT>` or
:ref:`CEC_RX_STATUS_FEATURE_ABORT <CEC-RX-STATUS-FEATURE-ABORT>`.
- .. row 9
- __u8
- ``rx_status``
- The status bits of the received message. See
:ref:`cec-rx-status` for the possible status values. It is 0 if
this message was transmitted, not received, unless this is the
reply to a transmitted message. In that case both ``rx_status``
and ``tx_status`` are set.
- .. row 10
- __u8
- ``tx_status``
- The status bits of the transmitted message. See
:ref:`cec-tx-status` for the possible status values. It is 0 if
this messages was received, not transmitted.
- .. row 11
- __u8
- ``tx_arb_lost_cnt``
- A counter of the number of transmit attempts that resulted in the
Arbitration Lost error. This is only set if the hardware supports
this, otherwise it is always 0. This counter is only valid if the
:ref:`CEC_TX_STATUS_ARB_LOST <CEC-TX-STATUS-ARB-LOST>` status bit is set.
- .. row 12
- __u8
- ``tx_nack_cnt``
- A counter of the number of transmit attempts that resulted in the
Not Acknowledged error. This is only set if the hardware supports
this, otherwise it is always 0. This counter is only valid if the
:ref:`CEC_TX_STATUS_NACK <CEC-TX-STATUS-NACK>` status bit is set.
- .. row 13
- __u8
- ``tx_low_drive_cnt``
- A counter of the number of transmit attempts that resulted in the
Arbitration Lost error. This is only set if the hardware supports
this, otherwise it is always 0. This counter is only valid if the
:ref:`CEC_TX_STATUS_LOW_DRIVE <CEC-TX-STATUS-LOW-DRIVE>` status bit is set.
- .. row 14
- __u8
- ``tx_error_cnt``
- A counter of the number of transmit errors other than Arbitration
Lost or Not Acknowledged. This is only set if the hardware
supports this, otherwise it is always 0. This counter is only
valid if the :ref:`CEC_TX_STATUS_ERROR <CEC-TX-STATUS-ERROR>` status bit is set.
- ``CEC_MSG_FL_REPLY_TO_FOLLOWERS``
- 1
- If a CEC transmit expects a reply, then by default that reply is only sent to
the filehandle that called :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`. If this
flag is set, then the reply is also sent to all followers, if any. If the
filehandle that called :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` is also a
follower, then that filehandle will receive the reply twice: once as the
result of the :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`, and once via
:ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
@@ -264,64 +217,46 @@ result.
:stub-columns: 0
:widths: 3 1 16
* .. _`CEC-TX-STATUS-OK`:
- .. _`CEC-TX-STATUS-OK`:
- ``CEC_TX_STATUS_OK``
- 0x01
- The message was transmitted successfully. This is mutually
exclusive with :ref:`CEC_TX_STATUS_MAX_RETRIES <CEC-TX-STATUS-MAX-RETRIES>`. Other bits can still
be set if earlier attempts met with failure before the transmit
was eventually successful.
* .. _`CEC-TX-STATUS-ARB-LOST`:
- ``CEC_TX_STATUS_OK``
- ``CEC_TX_STATUS_ARB_LOST``
- 0x02
- CEC line arbitration was lost.
* .. _`CEC-TX-STATUS-NACK`:
- 0x01
- ``CEC_TX_STATUS_NACK``
- 0x04
- Message was not acknowledged.
* .. _`CEC-TX-STATUS-LOW-DRIVE`:
- The message was transmitted successfully. This is mutually
exclusive with :ref:`CEC_TX_STATUS_MAX_RETRIES <CEC-TX-STATUS-MAX-RETRIES>`. Other bits can still
be set if earlier attempts met with failure before the transmit
was eventually successful.
- ``CEC_TX_STATUS_LOW_DRIVE``
- 0x08
- Low drive was detected on the CEC bus. This indicates that a
follower detected an error on the bus and requests a
retransmission.
* .. _`CEC-TX-STATUS-ERROR`:
- .. _`CEC-TX-STATUS-ARB-LOST`:
- ``CEC_TX_STATUS_ERROR``
- 0x10
- Some error occurred. This is used for any errors that do not fit
the previous two, either because the hardware could not tell which
error occurred, or because the hardware tested for other
conditions besides those two.
* .. _`CEC-TX-STATUS-MAX-RETRIES`:
- ``CEC_TX_STATUS_ARB_LOST``
- 0x02
- CEC line arbitration was lost.
- .. _`CEC-TX-STATUS-NACK`:
- ``CEC_TX_STATUS_NACK``
- 0x04
- Message was not acknowledged.
- .. _`CEC-TX-STATUS-LOW-DRIVE`:
- ``CEC_TX_STATUS_LOW_DRIVE``
- 0x08
- Low drive was detected on the CEC bus. This indicates that a
follower detected an error on the bus and requests a
retransmission.
- .. _`CEC-TX-STATUS-ERROR`:
- ``CEC_TX_STATUS_ERROR``
- 0x10
- Some error occurred. This is used for any errors that do not fit
the previous two, either because the hardware could not tell which
error occurred, or because the hardware tested for other
conditions besides those two.
- .. _`CEC-TX-STATUS-MAX-RETRIES`:
- ``CEC_TX_STATUS_MAX_RETRIES``
- 0x20
- The transmit failed after one or more retries. This status bit is
mutually exclusive with :ref:`CEC_TX_STATUS_OK <CEC-TX-STATUS-OK>`. Other bits can still
be set to explain which failures were seen.
- ``CEC_TX_STATUS_MAX_RETRIES``
- 0x20
- The transmit failed after one or more retries. This status bit is
mutually exclusive with :ref:`CEC_TX_STATUS_OK <CEC-TX-STATUS-OK>`. Other bits can still
be set to explain which failures were seen.
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
@@ -333,32 +268,23 @@ result.
:stub-columns: 0
:widths: 3 1 16
* .. _`CEC-RX-STATUS-OK`:
- .. _`CEC-RX-STATUS-OK`:
- ``CEC_RX_STATUS_OK``
- 0x01
- The message was received successfully.
* .. _`CEC-RX-STATUS-TIMEOUT`:
- ``CEC_RX_STATUS_OK``
- ``CEC_RX_STATUS_TIMEOUT``
- 0x02
- The reply to an earlier transmitted message timed out.
* .. _`CEC-RX-STATUS-FEATURE-ABORT`:
- 0x01
- The message was received successfully.
- .. _`CEC-RX-STATUS-TIMEOUT`:
- ``CEC_RX_STATUS_TIMEOUT``
- 0x02
- The reply to an earlier transmitted message timed out.
- .. _`CEC-RX-STATUS-FEATURE-ABORT`:
- ``CEC_RX_STATUS_FEATURE_ABORT``
- 0x04
- The message was received successfully but the reply was
``CEC_MSG_FEATURE_ABORT``. This status is only set if this message
was the reply to an earlier transmitted message.
- ``CEC_RX_STATUS_FEATURE_ABORT``
- 0x04
- The message was received successfully but the reply was
``CEC_MSG_FEATURE_ABORT``. This status is only set if this message
was the reply to an earlier transmitted message.

88
Documentation/media/uapi/v4l/control.rst
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@@ -312,21 +312,20 @@ more menu type controls.
.. _enum_all_controls:
Example: Enumerating all user controls
======================================
Example: Enumerating all controls
=================================
.. code-block:: c
struct v4l2_queryctrl queryctrl;
struct v4l2_querymenu querymenu;
static void enumerate_menu(void)
static void enumerate_menu(__u32 id)
{
printf(" Menu items:\\n");
memset(&querymenu, 0, sizeof(querymenu));
querymenu.id = queryctrl.id;
querymenu.id = id;
for (querymenu.index = queryctrl.minimum;
querymenu.index <= queryctrl.maximum;
@@ -337,6 +336,55 @@ Example: Enumerating all user controls
}
}
memset(&queryctrl, 0, sizeof(queryctrl));
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
if (!(queryctrl.flags & V4L2_CTRL_FLAG_DISABLED)) {
printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu(queryctrl.id);
}
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
}
if (errno != EINVAL) {
perror("VIDIOC_QUERYCTRL");
exit(EXIT_FAILURE);
}
Example: Enumerating all controls including compound controls
=============================================================
.. code-block:: c
struct v4l2_query_ext_ctrl query_ext_ctrl;
memset(&query_ext_ctrl, 0, sizeof(query_ext_ctrl));
query_ext_ctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
while (0 == ioctl(fd, VIDIOC_QUERY_EXT_CTRL, &query_ext_ctrl)) {
if (!(query_ext_ctrl.flags & V4L2_CTRL_FLAG_DISABLED)) {
printf("Control %s\\n", query_ext_ctrl.name);
if (query_ext_ctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu(query_ext_ctrl.id);
}
query_ext_ctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
}
if (errno != EINVAL) {
perror("VIDIOC_QUERY_EXT_CTRL");
exit(EXIT_FAILURE);
}
Example: Enumerating all user controls (old style)
==================================================
.. code-block:: c
memset(&queryctrl, 0, sizeof(queryctrl));
for (queryctrl.id = V4L2_CID_BASE;
@@ -349,7 +397,7 @@ Example: Enumerating all user controls
printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu();
enumerate_menu(queryctrl.id);
} else {
if (errno == EINVAL)
continue;
@@ -368,7 +416,7 @@ Example: Enumerating all user controls
printf("Control %s\\n", queryctrl.name);
if (queryctrl.type == V4L2_CTRL_TYPE_MENU)
enumerate_menu();
enumerate_menu(queryctrl.id);
} else {
if (errno == EINVAL)
break;
@@ -379,32 +427,6 @@ Example: Enumerating all user controls
}
Example: Enumerating all user controls (alternative)
====================================================
.. code-block:: c
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);
}
Example: Changing controls
==========================

2
Documentation/media/uapi/v4l/dev-codec.rst
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@@ -26,7 +26,7 @@ parameters
The MPEG controls actually support many more codecs than
just MPEG. See :ref:`mpeg-controls`.
Memory-to-memory devices can often be used as a shared resource: you can
Memory-to-memory devices function as a shared resource: you can
open the video node multiple times, each application setting up their
own codec properties that are local to the file handle, and each can use
it independently from the others. The driver will arbitrate access to

6
Documentation/media/uapi/v4l/extended-controls.rst
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@@ -2846,7 +2846,7 @@ JPEG Control IDs
input image is sampled, in respect to maximum sample rate in each
spatial dimension. See :ref:`itu-t81`, clause A.1.1. for more
details. The ``V4L2_CID_JPEG_CHROMA_SUBSAMPLING`` control determines
how Cb and Cr components are downsampled after coverting an input
how Cb and Cr components are downsampled after converting an input
image from RGB to Y'CbCr color space.
.. tabularcolumns:: |p{7.0cm}|p{10.5cm}|
@@ -3017,6 +3017,10 @@ Image Process Control IDs
test pattern images. These hardware specific test patterns can be
used to test if a device is working properly.
``V4L2_CID_DEINTERLACING_MODE (menu)``
The video deinterlacing mode (such as Bob, Weave, ...). The menu items are
driver specific and are documented in :ref:`v4l-drivers`.
.. _dv-controls:

19
Documentation/media/uapi/v4l/hsv-formats.rst Normal file
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@@ -0,0 +1,19 @@
.. -*- coding: utf-8; mode: rst -*-
.. _hsv-formats:
***********
HSV Formats
***********
These formats store the color information of the image
in a geometrical representation. The colors are mapped into a
cylinder, where the angle is the HUE, the height is the VALUE
and the distance to the center is the SATURATION. This is a very
useful format for image segmentation algorithms.
.. toctree::
:maxdepth: 1
pixfmt-packed-hsv

5
Documentation/media/uapi/v4l/pixfmt-002.rst
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@@ -121,6 +121,11 @@ Single-planar format structure
- This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_hsv_encoding`
- ``hsv_enc``
- This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_quantization`
- ``quantization``
- This information supplements the ``colorspace`` and must be set by

5
Documentation/media/uapi/v4l/pixfmt-003.rst
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@@ -78,6 +78,11 @@ describing all planes of that format.
- This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_hsv_encoding`
- ``hsv_enc``
- This information supplements the ``colorspace`` and must be set by
the driver for capture streams and by the application for output
streams, see :ref:`colorspaces`.
* - enum :c:type:`v4l2_quantization`
- ``quantization``
- This information supplements the ``colorspace`` and must be set by

31
Documentation/media/uapi/v4l/pixfmt-006.rst
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@@ -19,9 +19,16 @@ colorspace field of struct :c:type:`v4l2_pix_format`
or struct :c:type:`v4l2_pix_format_mplane`
needs to be filled in.
.. note::
.. _hsv-colorspace:
The default R'G'B' quantization is full range for all
On :ref:`HSV formats <hsv-formats>` the *Hue* is defined as the angle on
the cylindrical color representation. Usually this angle is measured in
degrees, i.e. 0-360. When we map this angle value into 8 bits, there are
two basic ways to do it: Divide the angular value by 2 (0-179), or use the
whole range, 0-255, dividing the angular value by 1.41. The enum
:c:type:`v4l2_hsv_encoding` specifies which encoding is used.
.. note:: The default R'G'B' quantization is full range for all
colorspaces except for BT.2020 which uses limited range R'G'B'
quantization.
@@ -123,6 +130,24 @@ needs to be filled in.
.. c:type:: v4l2_hsv_encoding
.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
.. flat-table:: V4L2 HSV Encodings
:header-rows: 1
:stub-columns: 0
* - Identifier
- Details
* - ``V4L2_HSV_ENC_180``
- For the Hue, each LSB is two degrees.
* - ``V4L2_HSV_ENC_256``
- For the Hue, the 360 degrees are mapped into 8 bits, i.e. each
LSB is roughly 1.41 degrees.
.. c:type:: v4l2_quantization
.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
@@ -136,7 +161,7 @@ needs to be filled in.
* - ``V4L2_QUANTIZATION_DEFAULT``
- Use the default quantization encoding as defined by the
colorspace. This is always full range for R'G'B' (except for the
BT.2020 colorspace) and usually limited range for Y'CbCr.
BT.2020 colorspace) and HSV. It is usually limited range for Y'CbCr.
* - ``V4L2_QUANTIZATION_FULL_RANGE``
- Use the full range quantization encoding. I.e. the range [0…1] is
mapped to [0…255] (with possible clipping to [1…254] to avoid the

5
Documentation/media/uapi/v4l/pixfmt-013.rst
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@@ -85,3 +85,8 @@ Compressed Formats
- ``V4L2_PIX_FMT_VP8``
- 'VP80'
- VP8 video elementary stream.
* .. _V4L2-PIX-FMT-VP9:
- ``V4L2_PIX_FMT_VP9``
- 'VP90'
- VP9 video elementary stream.

157
Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst Normal file
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@@ -0,0 +1,157 @@
.. -*- coding: utf-8; mode: rst -*-
.. _packed-hsv:
******************
Packed HSV formats
******************
Description
===========
The *hue* (h) is measured in degrees, the equivalence between degrees and LSBs
depends on the hsv-encoding used, see :ref:`colorspaces`.
The *saturation* (s) and the *value* (v) are measured in percentage of the
cylinder: 0 being the smallest value and 255 the maximum.
The values are packed in 24 or 32 bit formats.
.. raw:: latex
\newline\begin{adjustbox}{width=\columnwidth}
.. tabularcolumns:: |p{4.2cm}|p{1.0cm}|p{0.7cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{1.7cm}|
.. _packed-hsv-formats:
.. flat-table:: Packed HSV Image Formats
:header-rows: 2
:stub-columns: 0
* - Identifier
- Code
-
- :cspan:`7` Byte 0 in memory
-
- :cspan:`7` Byte 1
-
- :cspan:`7` Byte 2
-
- :cspan:`7` Byte 3
* -
-
- Bit
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
-
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
-
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
-
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
* .. _V4L2-PIX-FMT-HSV32:
- ``V4L2_PIX_FMT_HSV32``
- 'HSV4'
-
-
-
-
-
-
-
-
-
-
- h\ :sub:`7`
- h\ :sub:`6`
- h\ :sub:`5`
- h\ :sub:`4`
- h\ :sub:`3`
- h\ :sub:`2`
- h\ :sub:`1`
- h\ :sub:`0`
-
- s\ :sub:`7`
- s\ :sub:`6`
- s\ :sub:`5`
- s\ :sub:`4`
- s\ :sub:`3`
- s\ :sub:`2`
- s\ :sub:`1`
- s\ :sub:`0`
-
- v\ :sub:`7`
- v\ :sub:`6`
- v\ :sub:`5`
- v\ :sub:`4`
- v\ :sub:`3`
- v\ :sub:`2`
- v\ :sub:`1`
- v\ :sub:`0`
* .. _V4L2-PIX-FMT-HSV24:
- ``V4L2_PIX_FMT_HSV24``
- 'HSV3'
-
- h\ :sub:`7`
- h\ :sub:`6`
- h\ :sub:`5`
- h\ :sub:`4`
- h\ :sub:`3`
- h\ :sub:`2`
- h\ :sub:`1`
- h\ :sub:`0`
-
- s\ :sub:`7`
- s\ :sub:`6`
- s\ :sub:`5`
- s\ :sub:`4`
- s\ :sub:`3`
- s\ :sub:`2`
- s\ :sub:`1`
- s\ :sub:`0`
-
- v\ :sub:`7`
- v\ :sub:`6`
- v\ :sub:`5`
- v\ :sub:`4`
- v\ :sub:`3`
- v\ :sub:`2`
- v\ :sub:`1`
- v\ :sub:`0`
-
-
.. raw:: latex
\end{adjustbox}\newline\newline
Bit 7 is the most significant bit.

8
Documentation/media/uapi/v4l/pixfmt-reserved.rst
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@@ -234,7 +234,15 @@ please make a proposal on the linux-media mailing list.
repeated for each line, i.e. the number of entries in the pointer
array. Anything what's in between the UYVY lines is JPEG data and
should be concatenated to form the JPEG stream.
* .. _V4L2-PIX-FMT-MT21C:
- ``V4L2_PIX_FMT_MT21C``
- 'MT21'
- Compressed two-planar YVU420 format used by Mediatek MT8173.
The compression is lossless.
It is an opaque intermediate format and the MDP hardware must be
used to convert ``V4L2_PIX_FMT_MT21C`` to ``V4L2_PIX_FMT_NV12M``,
``V4L2_PIX_FMT_YUV420M`` or ``V4L2_PIX_FMT_YVU420``.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|

2
Documentation/media/uapi/v4l/pixfmt-rgb.rst
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@@ -12,9 +12,9 @@ RGB Formats
pixfmt-packed-rgb
pixfmt-srggb8
pixfmt-sbggr16
pixfmt-srggb10
pixfmt-srggb10p
pixfmt-srggb10alaw8
pixfmt-srggb10dpcm8
pixfmt-srggb12
pixfmt-srggb16

2
Documentation/media/uapi/v4l/pixfmt-srggb10p.rst
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@@ -28,7 +28,7 @@ bits of each pixel, in the same order.
Each n-pixel row contains n/2 green samples and n/2 blue or red samples,
with alternating green-red and green-blue rows. They are conventionally
described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example
of one of these formats:
of a small V4L2_PIX_FMT_SBGGR10P image:
**Byte Order.**
Each cell is one byte.

2
Documentation/media/uapi/v4l/pixfmt-srggb12.rst
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@@ -26,7 +26,7 @@ high bits filled with zeros. Each n-pixel row contains n/2 green samples
and n/2 blue or red samples, with alternating red and blue rows. Bytes
are stored in memory in little endian order. They are conventionally
described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is an example
of one of these formats:
of a small V4L2_PIX_FMT_SBGGR12 image:
**Byte Order.**
Each cell is one byte, the 4 most significant bits in the high bytes are

25
Documentation/media/uapi/v4l/pixfmt-sbggr16.rst → Documentation/media/uapi/v4l/pixfmt-srggb16.rst
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@@ -1,21 +1,28 @@
.. -*- coding: utf-8; mode: rst -*-
.. _V4L2-PIX-FMT-SBGGR16:
.. _V4L2-PIX-FMT-SRGGB16:
.. _v4l2-pix-fmt-sbggr16:
.. _v4l2-pix-fmt-sgbrg16:
.. _v4l2-pix-fmt-sgrbg16:
*****************************
V4L2_PIX_FMT_SBGGR16 ('BYR2')
*****************************
Bayer RGB format
***************************************************************************************************************************
V4L2_PIX_FMT_SRGGB16 ('RG16'), V4L2_PIX_FMT_SGRBG16 ('GR16'), V4L2_PIX_FMT_SGBRG16 ('GB16'), V4L2_PIX_FMT_SBGGR16 ('BYR2'),
***************************************************************************************************************************
16-bit Bayer formats
Description
===========
This format is similar to
:ref:`V4L2_PIX_FMT_SBGGR8 <V4L2-PIX-FMT-SBGGR8>`, except each pixel
has a depth of 16 bits. The least significant byte is stored at lower
memory addresses (little-endian).
These four pixel formats are raw sRGB / Bayer formats with 16 bits per
sample. Each sample is stored in a 16-bit word. Each n-pixel row contains
n/2 green samples and n/2 blue or red samples, with alternating red and blue
rows. Bytes are stored in memory in little endian order. They are
conventionally described as GRGR... BGBG..., RGRG... GBGB..., etc. Below is
an example of a small V4L2_PIX_FMT_SBGGR16 image:
**Byte Order.**
Each cell is one byte.

2
Documentation/media/uapi/v4l/pixfmt-srggb8.rst
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@@ -20,7 +20,7 @@ These four pixel formats are raw sRGB / Bayer formats with 8 bits per
sample. Each sample is stored in a byte. Each n-pixel row contains n/2
green samples and n/2 blue or red samples, with alternating red and
blue rows. They are conventionally described as GRGR... BGBG...,
RGRG... GBGB..., etc. Below is an example of one of these formats:
RGRG... GBGB..., etc. Below is an example of a small V4L2_PIX_FMT_SBGGR8 image:
**Byte Order.**
Each cell is one byte.

1
Documentation/media/uapi/v4l/pixfmt.rst
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@@ -29,6 +29,7 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.)
pixfmt-indexed
pixfmt-rgb
yuv-formats
hsv-formats
depth-formats
pixfmt-013
sdr-formats

299
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9
Documentation/media/uapi/v4l/v4l2.rst
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@@ -68,6 +68,10 @@ Authors, in alphabetical order:
- SDR API.
- Ribalda, Ricardo
- Introduce HSV formats and other minor changes.
- Rubli, Martin
- Designed and documented the VIDIOC_ENUM_FRAMESIZES and VIDIOC_ENUM_FRAMEINTERVALS ioctls.
@@ -89,6 +93,11 @@ part can be used and distributed without restrictions.
Revision History
****************
:revision: 4.10 / 2016-07-15 (*rr*)
Introduce HSV formats.
:revision: 4.5 / 2015-10-29 (*rr*)
Extend VIDIOC_G_EXT_CTRLS;. Replace ctrl_class with a new union with

11
Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst
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@@ -270,3 +270,14 @@ EBUSY
- Some formats like SMPTE-125M have an interlaced signal with a odd
total height. For these formats, if this flag is set, the first
field has the extra line. Else, it is the second field.
* - ``V4L2_DV_FL_HAS_PICTURE_ASPECT``
- If set, then the picture_aspect field is valid. Otherwise assume that
the pixels are square, so the picture aspect ratio is the same as the
width to height ratio.
* - ``V4L2_DV_FL_HAS_CEA861_VIC``
- If set, then the cea861_vic field is valid and contains the Video
Identification Code as per the CEA-861 standard.
* - ``V4L2_DV_FL_HAS_HDMI_VIC``
- If set, then the hdmi_vic field is valid and contains the Video
Identification Code as per the HDMI standard (HDMI Vendor Specific
InfoFrame).

4
Documentation/media/uapi/v4l/vidioc-g-tuner.rst
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@@ -201,10 +201,10 @@ To change the radio frequency the
* - ``V4L2_TUNER_SDR``
- 4
- Tuner controls the A/D and/or D/A block of a
Sofware Digital Radio (SDR)
Software Digital Radio (SDR)
* - ``V4L2_TUNER_RF``
- 5
- Tuner controls the RF part of a Sofware Digital Radio (SDR)
- Tuner controls the RF part of a Software Digital Radio (SDR)
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|