linux-stable.git/include/media, branch v6.11

media: rc: add keymap for MyGica UTV3 remote

2024-06-29T10:20:05+00:00

Add keymap for the simple IR (RC-5) remote that comes with the
MyGica UTV3 Analog USB2.0 TV Box video capture card.

Signed-off-by: Nils Rothaug 
Signed-off-by: Sean Young 
Signed-off-by: Hans Verkuil

media: tuner-simple: Add support for Tena TNF931D-DFDR1

2024-06-29T10:20:05+00:00

Tuner ranges were determined by USB capturing the vendor driver of a
MyGica UTV3 video capture card.

Signed-off-by: Nils Rothaug 
Signed-off-by: Sean Young 
Signed-off-by: Hans Verkuil

media: v4l: subdev: Fix typo in documentation

2024-06-26T06:14:03+00:00

Replace the incorrect reference to the v4l2_subdev_enable_stream()
function with the correct v4l2_subdev_enable_streams() spelling.

Fixes: d0749adb3070 ("media: v4l2-subdev: Add subdev .(enable|disable)_streams() operations")
Reviewed-by: Tomi Valkeinen 
Link: https://lore.kernel.org/r/20240619225343.15873-1-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart

media: v4l2-jpeg: Export reference quantization and huffman tables

2024-06-24T09:05:06+00:00

Export reference quantization and huffman tables as provided in ITU-T.81 so
that they can be re-used by other JPEG drivers.

These are example tables provided in ITU-T.81 as reference tables and the
JPEG encoders are free to use either these or their own proprietary tables.

Also add necessary prefixes to be used for huffman tables in global header
file.

Signed-off-by: Devarsh Thakkar 
Reviewed-by: Hans Verkuil 
Signed-off-by: Sebastian Fricke 
Signed-off-by: Hans Verkuil

media: v4l2-subdev: Provide const-aware subdev state accessors

2024-06-04T06:31:25+00:00

It would be useful to mark instances of v4l2_subdev_state structures as
const when code needs to access them read-only. This isn't currently
possible, as the v4l2_subdev_state_get_*() accessor functions take a
non-const pointer to the state.

Use _Generic() to provide two different versions of the accessors, for
const and non-const states respectively. The former returns a const
pointer to the requested format, rectangle or interval, implementing
const-correctness. The latter returns a non-const pointer, preserving
the current behaviour for drivers.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Sakari Ailus 
Reviewed-by: Tomi Valkeinen 
[Sakari Ailus: Drop the word "below" from the text.]
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil

media: v4l2-subdev: Fix v4l2_subdev_state_get_format() documentation

2024-06-04T06:31:25+00:00

The documentation of the v4l2_subdev_state_get_format() macro
incorrectly references __v4l2_subdev_state_get_format() instead of
__v4l2_subdev_state_gen_call(). Fix it, and also update the list of
similar macros to add the missing v4l2_subdev_state_get_interval().

Suggested-by: Sakari Ailus 
Signed-off-by: Laurent Pinchart 
Reviewed-by: Sakari Ailus 
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil

media: subdev: Improve s_stream documentation

2024-06-04T06:31:25+00:00

Now that enable/disable_streams operations are available for
single-stream subdevices too, there's no reason to use the old s_stream
operation on new drivers. Extend the documentation reflecting this.

Signed-off-by: Tomi Valkeinen 
Reviewed-by: Umang Jain
Reviewed-by: Laurent Pinchart 
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil

media: subdev: Add v4l2_subdev_is_streaming()

2024-06-04T06:31:24+00:00

Add a helper function which returns whether the subdevice is streaming,
i.e. if .s_stream or .enable_streams has been called successfully.

Reviewed-by: Umang Jain 
Reviewed-by: Laurent Pinchart 
Tested-by: Umang Jain 
Signed-off-by: Tomi Valkeinen 
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil

media: subdev: Improve v4l2_subdev_enable/disable_streams_fallback

2024-06-04T06:31:24+00:00

v4l2_subdev_enable/disable_streams_fallback() supports falling back to
.s_stream() for subdevs with a single source pad. It also tracks the
enabled streams for that one pad in the sd->enabled_streams field.

Tracking the enabled streams with sd->enabled_streams does not make
sense, as with .s_stream() there can only be a single stream per pad.
Thus, as the v4l2_subdev_enable/disable_streams_fallback() only supports
a single source pad, all we really need is a boolean which tells whether
streaming has been enabled on this pad or not.

However, as we only need a true/false state for a pad (instead of
tracking which streams have been enabled for a pad), we can easily
extend the fallback mechanism to support multiple source pads as we only
need to keep track of which pads have been enabled.

Change the sd->enabled_streams field to sd->enabled_pads, which is a
64-bit bitmask tracking the enabled source pads. With this change we can
remove the restriction that
v4l2_subdev_enable/disable_streams_fallback() only supports a single
source pad.

Reviewed-by: Laurent Pinchart 
Tested-by: Umang Jain 
Signed-off-by: Tomi Valkeinen 
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil

media: subdev: Fix use of sd->enabled_streams in call_s_stream()

2024-06-04T06:31:24+00:00

call_s_stream() uses sd->enabled_streams to track whether streaming has
already been enabled. However,
v4l2_subdev_enable/disable_streams_fallback(), which was the original
user of this field, already uses it, and
v4l2_subdev_enable/disable_streams_fallback() will call call_s_stream().

This leads to a conflict as both functions set the field. Afaics, both
functions set the field to the same value, so it won't cause a runtime
bug, but it's still wrong and if we, e.g., change how
v4l2_subdev_enable/disable_streams_fallback() operates we might easily
cause bugs.

Fix this by adding a new field, 's_stream_enabled', for
call_s_stream().

Reviewed-by: Umang Jain 
Reviewed-by: Laurent Pinchart 
Tested-by: Umang Jain 
Signed-off-by: Tomi Valkeinen 
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil