Commit 2f91e10e authored Dec 21, 2021 by Tomi Valkeinen Committed by Mauro Carvalho Chehab Jan 22, 2023

media: subdev: add stream based configuration



Add support to manage configurations (format, crop, compose) per stream,
instead of per pad. This is accomplished with data structures that hold
an array of all subdev's stream configurations.

The number of streams can vary at runtime based on routing. Every time
the routing is changed, the stream configurations need to be
re-initialized.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

parent 70283e99

Documentation/userspace-api/media/v4l/vidioc-subdev-enum-frame-interval.rst

+4 −1

Original line number	Diff line number	Diff line
		@@ -92,7 +92,10 @@ multiple pads of the same sub-device is not defined.
		- Frame intervals to be enumerated, from enum
		:ref:`v4l2_subdev_format_whence <v4l2-subdev-format-whence>`.
		* - __u32
		- ``reserved``\ [8]
		- ``stream``
		- Stream identifier.
		* - __u32
		- ``reserved``\ [7]
		- Reserved for future extensions. Applications and drivers must set
		the array to zero.

Documentation/userspace-api/media/v4l/vidioc-subdev-enum-frame-size.rst

+4 −1

Original line number	Diff line number	Diff line
		@@ -97,7 +97,10 @@ information about try formats.
		- Frame sizes to be enumerated, from enum
		:ref:`v4l2_subdev_format_whence <v4l2-subdev-format-whence>`.
		* - __u32
		- ``reserved``\ [8]
		- ``stream``
		- Stream identifier.
		* - __u32
		- ``reserved``\ [7]
		- Reserved for future extensions. Applications and drivers must set
		the array to zero.

Documentation/userspace-api/media/v4l/vidioc-subdev-enum-mbus-code.rst

+4 −1

Original line number	Diff line number	Diff line
		@@ -73,7 +73,10 @@ information about the try formats.
		- ``flags``
		- See :ref:`v4l2-subdev-mbus-code-flags`
		* - __u32
		- ``reserved``\ [7]
		- ``stream``
		- Stream identifier.
		* - __u32
		- ``reserved``\ [6]
		- Reserved for future extensions. Applications and drivers must set
		the array to zero.

Documentation/userspace-api/media/v4l/vidioc-subdev-g-crop.rst

+4 −1

Original line number	Diff line number	Diff line
		@@ -96,7 +96,10 @@ modified format should be as close as possible to the original request.
		- ``rect``
		- Crop rectangle boundaries, in pixels.
		* - __u32
		- ``reserved``\ [8]
		- ``stream``
		- Stream identifier.
		* - __u32
		- ``reserved``\ [7]
		- Reserved for future extensions. Applications and drivers must set
		the array to zero.

Documentation/userspace-api/media/v4l/vidioc-subdev-g-fmt.rst

+4 −1

Original line number	Diff line number	Diff line
		@@ -102,7 +102,10 @@ should be as close as possible to the original request.
		- Definition of an image format, see :c:type:`v4l2_mbus_framefmt` for
		details.
		* - __u32
		- ``reserved``\ [8]
		- ``stream``
		- Stream identifier.
		* - __u32
		- ``reserved``\ [7]
		- Reserved for future extensions. Applications and drivers must set
		the array to zero.