media: v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL

Add the capability of retrieving the min and max values of a
compound control.

[Ricardo: Added static to v4l2_ctrl_type_op_(maximum|mi

media: v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL

Add the capability of retrieving the min and max values of a
compound control.

[Ricardo: Added static to v4l2_ctrl_type_op_(maximum|minimum) proto]
[Ricardo: Fix documentation]

Signed-off-by: Yunke Cao <[email protected]>
Tested-by: Yunke Cao <[email protected]>
Signed-off-by: Ricardo Ribalda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
[hverkuil: fix small alignment checkpatch warning]

show more ...

media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT

Add p_rect to struct v4l2_ext_control with basic support in
v4l2-ctrls.

Reviewed-by: Laurent Pinchart <[email protected]>
Reviewed-by: Rica

media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT

Add p_rect to struct v4l2_ext_control with basic support in
v4l2-ctrls.

Reviewed-by: Laurent Pinchart <[email protected]>
Reviewed-by: Ricardo Ribalda <[email protected]>
Reviewed-by: Sergey Senozhatsky <[email protected]>
Reviewed-by: Daniel Scally <[email protected]>
Signed-off-by: Yunke Cao <[email protected]>
Reviewed-by: Hans Verkuil <[email protected]>
Tested-by: Yunke Cao <[email protected]>
Signed-off-by: Ricardo Ribalda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: uapi: Add meta formats for PiSP FE config and stats

Add two meta formats for PiSP FE: V4L2_META_FMT_RPI_FE_CFG and
V4L2_META_FMT_RPI_FE_STATS. The former is used to provide configuration
for

media: uapi: Add meta formats for PiSP FE config and stats

Add two meta formats for PiSP FE: V4L2_META_FMT_RPI_FE_CFG and
V4L2_META_FMT_RPI_FE_STATS. The former is used to provide configuration
for the FE and the latter is used to read the statistics from the FE.

Signed-off-by: Tomi Valkeinen <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

show more ...

media: videodev2: Add flag to unconditionally enumerate pixel formats

When the index is ORed with V4L2_FMTDESC_FLAG_ENUM_ALL the
driver clears the flag and enumerate all the possible formats,
ignori

media: videodev2: Add flag to unconditionally enumerate pixel formats

When the index is ORed with V4L2_FMTDESC_FLAG_ENUM_ALL the
driver clears the flag and enumerate all the possible formats,
ignoring any limitations from the current configuration.
Drivers which do not support this flag yet always return an EINVAL.

Signed-off-by: Benjamin Gaignard <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
[hverkuil: improved doc when the new flag is not supported by the driver]

show more ...

media: v4l: Add luma 16-bit interlaced pixel format

The formats added by this patch are:

V4L2_PIX_FMT_Y16I

Interlaced lumina format primary use in RealSense Depth cameras with
stereo strea

media: v4l: Add luma 16-bit interlaced pixel format

The formats added by this patch are:

V4L2_PIX_FMT_Y16I

Interlaced lumina format primary use in RealSense Depth cameras with
stereo stream for left and right image sensors.

Signed-off-by: Dmitry Perchanov <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: videodev2.h: add V4L2_CAP_EDID

Add capability flag to indicate that the device is an EDID-only device.

Signed-off-by: Erling Ljunggren <[email protected]>
Signed-off-by: Hans Verkuil <hverk

media: videodev2.h: add V4L2_CAP_EDID

Add capability flag to indicate that the device is an EDID-only device.

Signed-off-by: Erling Ljunggren <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Reviewed-by: Sebastian Fricke <[email protected]>
Reviewed-by: Ricardo Ribalda <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

show more ...

media: uapi: videodev2: Add V4L2_META_FMT_RK_ISP1_EXT_PARAMS

The rkisp1 driver stores ISP configuration parameters in the fixed
rkisp1_params_cfg structure. As the members of the structure are part

media: uapi: videodev2: Add V4L2_META_FMT_RK_ISP1_EXT_PARAMS

The rkisp1 driver stores ISP configuration parameters in the fixed
rkisp1_params_cfg structure. As the members of the structure are part of
the userspace API, the structure layout is immutable and cannot be
extended further. Introducing new parameters or modifying the existing
ones would change the buffer layout and cause breakages in existing
applications.

The allow for future extensions to the ISP parameters, introduce a new
extensible parameters format, with a new format 4CC. Document usage of
the new format in the rkisp1 admin guide.

Signed-off-by: Jacopo Mondi <[email protected]>
Reviewed-by: Daniel Scally <[email protected]>
Reviewed-by: Paul Elder <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Tested-by: Kieran Bingham <[email protected]>
Acked-by: Sakari Ailus <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>

show more ...

media: uapi: Add PiSP Compressed RAW Bayer formats

Add Raspberry Pi compressed RAW Bayer formats.

The compression algorithm description is provided by Nick Hollinghurst
<nick.hollinghurst@raspberry

media: uapi: Add PiSP Compressed RAW Bayer formats

Add Raspberry Pi compressed RAW Bayer formats.

The compression algorithm description is provided by Nick Hollinghurst
<[email protected]> from Raspberry Pi.

Signed-off-by: Jacopo Mondi <[email protected]>
Reviewed-by: Naushir Patuck <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: uapi: Add meta pixel format for PiSP BE config

Add format description for the PiSP Back End configuration parameter
buffer.

Signed-off-by: Jacopo Mondi <[email protected]>
Review

media: uapi: Add meta pixel format for PiSP BE config

Add format description for the PiSP Back End configuration parameter
buffer.

Signed-off-by: Jacopo Mondi <[email protected]>
Reviewed-by: Naushir Patuck <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: uapi: Add a pixel format for BGR48 and RGB48

Add BGR48 and RGB48 16-bit per component image formats.

Signed-off-by: Jacopo Mondi <[email protected]>
Reviewed-by: Kieran Bingham <

media: uapi: Add a pixel format for BGR48 and RGB48

Add BGR48 and RGB48 16-bit per component image formats.

Signed-off-by: Jacopo Mondi <[email protected]>
Reviewed-by: Kieran Bingham <[email protected]>
Reviewed-by: Naushir Patuck <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: uapi: v4l: Don't expose generic metadata formats to userspace

The generic metadata pixel formats (V4L2_META_FMT_GENERIC_*) are meant
to be used in conjunction with device-specific media bus c

media: uapi: v4l: Don't expose generic metadata formats to userspace

The generic metadata pixel formats (V4L2_META_FMT_GENERIC_*) are meant
to be used in conjunction with device-specific media bus codes. Those
codes are work in progress and not available in the upstream kernel yet.
To make sure the generic metadata pixel formats won't be used by
userspace until we have the full infrastructure in place, keep their
definition private to the kernel for now.

Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: v4l: Add V4L2-PIX-FMT-Y14P format

This is a packed grey-scale image format with a depth of 14 bits per
pixel. Every four consecutive samples are packed into seven bytes. Each
of the first fou

media: v4l: Add V4L2-PIX-FMT-Y14P format

This is a packed grey-scale image format with a depth of 14 bits per
pixel. Every four consecutive samples are packed into seven bytes. Each
of the first four bytes contain the eight high order bits of the pixels,
and the three following bytes contains the six least significants bits
of each pixel, in the same order.

As the other formats only needed 5 bytes before, append two bytes in the
documentation array.

Signed-off-by: Jean-Michel Hautbois <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: v4l: Add V4L2-PIX-FMT-Y12P format

This is a packed grey-scale image format with a depth of 12 bits per
pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes
contain the 8 h

media: v4l: Add V4L2-PIX-FMT-Y12P format

This is a packed grey-scale image format with a depth of 12 bits per
pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes
contain the 8 high order bits of the pixels, and the 3rd byte contains
the 4 least significants bits of each pixel, in the same order.

Add the entry in userspace API, and document it.

Signed-off-by: Jean-Michel Hautbois <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: v4l: Set line based metadata flag in V4L2 core

Set (and unset) the V4L2_FMT_FLAG_META_LINE_BASED flag in struct
v4l2_fmtdesc based on the format after returning the driver callback for
enumer

media: v4l: Set line based metadata flag in V4L2 core

Set (and unset) the V4L2_FMT_FLAG_META_LINE_BASED flag in struct
v4l2_fmtdesc based on the format after returning the driver callback for
enumerating formats. This way the drivers don't need to care about the
flag.

Signed-off-by: Sakari Ailus <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: v4l: Support line-based metadata capture

Many camera sensors, among other devices, transmit embedded data and image
data for each CSI-2 frame. This embedded data typically contains register
c

media: v4l: Support line-based metadata capture

Many camera sensors, among other devices, transmit embedded data and image
data for each CSI-2 frame. This embedded data typically contains register
configuration of the sensor that has been used to capture the image data
of the same frame.

The embedded data is received by the CSI-2 receiver and has the same
properties as the image data, including that it is line based: it has
width, height and bytesperline (stride).

Add these fields to struct v4l2_meta_format and document them.

Also add V4L2_FMT_FLAG_META_LINE_BASED to tell a given format is
line-based i.e. these fields of struct v4l2_meta_format are valid for it.

Signed-off-by: Sakari Ailus <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: uapi: v4l: Add generic 8-bit metadata format definitions

Generic 8-bit metadata formats define the in-memory data layout but not
the format of the data itself. The reasoning for having such f

media: uapi: v4l: Add generic 8-bit metadata format definitions

Generic 8-bit metadata formats define the in-memory data layout but not
the format of the data itself. The reasoning for having such formats is to
allow CSI-2 receiver drivers to receive and DMA drivers to write the data
to memory without knowing a large number of device-specific formats.

These formats may be used only in conjunction with a Media Controller
pipeline where the internal pad of the source sub-device defines the
specific format of the data (using an mbus code).

Signed-off-by: Sakari Ailus <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: videodev2: Fix v4l2_ext_control packing.

The structure is packed, which requires that all its fields need to be
also packed.

./include/uapi/linux/videodev2.h:1810:2: warning: field within '

media: videodev2: Fix v4l2_ext_control packing.

The structure is packed, which requires that all its fields need to be
also packed.

./include/uapi/linux/videodev2.h:1810:2: warning: field within 'struct v4l2_ext_control' is less aligned than 'union v4l2_ext_control::(anonymous at ./include/uapi/linux/videodev2.h:1810:2)' and is usually due to 'struct v4l2_ext_control' being packed, which can lead to unaligned accesses [-Wunaligned-access]

Explicitly set the inner union as packed.

Marking the inner union as 'packed' does not change the layout, since the
whole struct is already packed, it just silences the clang warning. See
also this llvm discussion:

https://github.com/llvm/llvm-project/issues/55520

Signed-off-by: Ricardo Ribalda <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: v4l2: Add REMOVE_BUFS ioctl

VIDIOC_REMOVE_BUFS ioctl allows to remove buffers from a queue.
The number of buffers to remove in given by count field of
struct v4l2_remove_buffers and the range

media: v4l2: Add REMOVE_BUFS ioctl

VIDIOC_REMOVE_BUFS ioctl allows to remove buffers from a queue.
The number of buffers to remove in given by count field of
struct v4l2_remove_buffers and the range start at the index
specified in the same structure.

Signed-off-by: Benjamin Gaignard <[email protected]>
Reviewed-by: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
[hverkuil: vidioc-remove-bufs.rst: mention no bufs are freed on error]

show more ...

media: videodev2.h: Fix kerneldoc

Named nested unions need their prefix:
https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.html#nested-structs-unions

Signed-off-by: Ricardo Ribalda <ribal

media: videodev2.h: Fix kerneldoc

Named nested unions need their prefix:
https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.html#nested-structs-unions

Signed-off-by: Ricardo Ribalda <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: videodev.h: add missing p_hdr10_* pointers

The HDR10 standard compound controls were missing the corresponding
pointers in videodev2.h. Add these and document them.

Signed-off-by: Hans Verku

media: videodev.h: add missing p_hdr10_* pointers

The HDR10 standard compound controls were missing the corresponding
pointers in videodev2.h. Add these and document them.

Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

show more ...

media: videodev2.h: add missing __user to p_h264_pps

The p_h264_pps pointer in struct v4l2_ext_control was missing the
__user annotation. Add this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4al

media: videodev2.h: add missing __user to p_h264_pps

The p_h264_pps pointer in struct v4l2_ext_control was missing the
__user annotation. Add this.

Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

show more ...

media: core: Report the maximum possible number of buffers for the queue

Use one of the struct v4l2_create_buffers reserved bytes to report
the maximum possible number of buffers for the queue.
V4l2

media: core: Report the maximum possible number of buffers for the queue

Use one of the struct v4l2_create_buffers reserved bytes to report
the maximum possible number of buffers for the queue.
V4l2 framework set V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS flags in queue
capabilities so userland can know when the field is valid.
Does the same change in v4l2_create_buffers32 structure.

Signed-off-by: Benjamin Gaignard <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

show more ...

media: v4l: Add HEXTILE compressed format

Add HEXTILE compressed format which is defined in Remote Framebuffer
Protocol (RFC 6143, chapter 7.7.4 Hextile Encoding) and is used by
Encoding Compression

media: v4l: Add HEXTILE compressed format

Add HEXTILE compressed format which is defined in Remote Framebuffer
Protocol (RFC 6143, chapter 7.7.4 Hextile Encoding) and is used by
Encoding Compression Engine (ECE) present on Nuvoton NPCM SoCs.

Signed-off-by: Marvin Lin <[email protected]>
Reviewed-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: mediatek: vcodec: Add capture format to support 10bit raster mode

Define one uncompressed capture format V4L2_PIX_FMT_MT2110R in order to
support 10bit for H264 in mt8195.

Signed-off-by: Min

media: mediatek: vcodec: Add capture format to support 10bit raster mode

Define one uncompressed capture format V4L2_PIX_FMT_MT2110R in order to
support 10bit for H264 in mt8195.

Signed-off-by: Mingjia Zhang <[email protected]>
Co-developed-by: Yunfei Dong <[email protected]>
Signed-off-by: Yunfei Dong <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...

media: mediatek: vcodec: Add capture format to support 10bit tile mode

Define one uncompressed capture format V4L2_PIX_FMT_MT2110T in order to
support 10bit for AV1/VP9/HEVC in mt8195.

Signed-off-b

media: mediatek: vcodec: Add capture format to support 10bit tile mode

Define one uncompressed capture format V4L2_PIX_FMT_MT2110T in order to
support 10bit for AV1/VP9/HEVC in mt8195.

Signed-off-by: Mingjia Zhang <[email protected]>
Co-developed-by: Yunfei Dong <[email protected]>
Signed-off-by: Yunfei Dong <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

show more ...