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Add definitions and documentation for the custom control that will be needed by the Mali-C55 ISP driver. This will be a read only bitmask of the driver's capabilities, informing userspace of which blocks are fitted and which are absent. Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
55 lines
1.7 KiB
ReStructuredText
55 lines
1.7 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-only
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Arm Mali-C55 ISP driver
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=======================
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The Arm Mali-C55 ISP driver implements a single driver-specific control:
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``V4L2_CID_MALI_C55_CAPABILITIES (bitmask)``
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Detail the capabilities of the ISP by giving detail about the fitted blocks.
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.. flat-table:: Bitmask meaning definitions
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:header-rows: 1
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:widths: 2 4 8
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* - Bit
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- Macro
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- Meaning
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* - 0
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- MALI_C55_PONG
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- Pong configuration space is fitted in the ISP
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* - 1
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- MALI_C55_WDR
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- WDR Framestitch, offset and gain is fitted in the ISP
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* - 2
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- MALI_C55_COMPRESSION
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- Temper compression is fitted in the ISP
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* - 3
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- MALI_C55_TEMPER
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- Temper is fitted in the ISP
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* - 4
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- MALI_C55_SINTER_LITE
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- Sinter Lite is fitted in the ISP instead of the full Sinter version
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* - 5
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- MALI_C55_SINTER
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- Sinter is fitted in the ISP
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* - 6
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- MALI_C55_IRIDIX_LTM
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- Iridix local tone mappine is fitted in the ISP
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* - 7
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- MALI_C55_IRIDIX_GTM
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- Iridix global tone mapping is fitted in the ISP
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* - 8
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- MALI_C55_CNR
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- Colour noise reduction is fitted in the ISP
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* - 9
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- MALI_C55_FRSCALER
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- The full resolution pipe scaler is fitted in the ISP
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* - 10
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- MALI_C55_DS_PIPE
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- The downscale pipe is fitted in the ISP
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The Mali-C55 ISP can be configured in a number of ways to include or exclude
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blocks which may not be necessary. This control provides a way for the
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driver to communicate to userspace which of the blocks are fitted in the
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design. |