diff options
| author | Daniel Scally <dan.scally@ideasonboard.com> | 2025-11-11 16:15:59 +0000 |
|---|---|---|
| committer | Hans Verkuil <hverkuil+cisco@kernel.org> | 2025-11-14 15:48:49 +0100 |
| commit | 87b214ddfed2350d57633066fd60f3c71c57c185 (patch) | |
| tree | dc98d84a389d6fc4e3345425300984b40bca7d6e /Documentation/admin-guide | |
| parent | 01535ea086746ebc9ba3b0d817285ae89ec5ae0d (diff) | |
Documentation: media: mali-c55: Document the mali-c55 parameter setting
Document the mali-c55 parameter setting by expanding the relevant
pages in both admin-guide/ and userspace-api/.
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Nayden Kanchev <nayden.kanchev@arm.com>
Co-developed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/media/mali-c55.rst | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/Documentation/admin-guide/media/mali-c55.rst b/Documentation/admin-guide/media/mali-c55.rst index 03723e0e8e43..315f982000c4 100644 --- a/Documentation/admin-guide/media/mali-c55.rst +++ b/Documentation/admin-guide/media/mali-c55.rst @@ -387,9 +387,24 @@ the processing flow the statistics can be drawn from:: +-------------+ | +-------------+ +--> AWB-1 -At present all statistics are drawn from the 0th tap point for each algorithm; +By default all statistics are drawn from the 0th tap point for each algorithm; I.E. AEXP statistics from AEXP-0 (A), AWB statistics from AWB-0 and AF -statistics from AF-0. In the future this will be configurable. +statistics from AF-0. This is configurable for AEXP and AWB statsistics through +programming the ISP's parameters. + +.. _mali-c55-3a-params: + +Programming ISP Parameters +========================== + +The ISP can be programmed with various parameters from userspace to apply to the +hardware before and during video stream. This allows userspace to dynamically +change values such as black level, white balance and lens shading gains and so +on. + +The buffer format and how to populate it are described by the +:ref:`V4L2_META_FMT_MALI_C55_PARAMS <v4l2-meta-fmt-mali-c55-params>` format, +which should be set as the data format for the `mali-c55 3a params` video node. References ========== |