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libipa: camera_sensor_helper: Add OV5675 black level

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Add black level value for OV5675 camera sensor.
According to datasheet, default value is 0x10, 10 bits width.
However, Linux kernel driver initializes black level target value
to 0x40. Set the value to the same as in kernel driver, but scaled
to 16 bits.

Signed-off-by: Daniel Semkowicz <dse@thaumatec.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Daniel Semkowicz 2024-07-23 16:56:25 +02:00 • committed by Kieran Bingham
parent 71aa3ceec3
commit 7ee9ef451d
1 changed files with 2 additions and 0 deletions
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2
src/ipa/libipa/camera_sensor_helper.cpp
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@ -601,6 +601,8 @@ class CameraSensorHelperOv5675 : public CameraSensorHelper
public: public:
CameraSensorHelperOv5675() CameraSensorHelperOv5675()
{ {
/* From Linux kernel driver: 0x40 at 10bits. */
blackLevel_ = 4096;
gainType_ = AnalogueGainLinear; gainType_ = AnalogueGainLinear;
gainConstants_.linear = { 1, 0, 0, 128 }; gainConstants_.linear = { 1, 0, 0, 128 };
} }