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ipa: raspberrypi: Add sensor mode limits to CameraMode

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Add fields in the CameraMode structure to capture the mode specific
limits for analogue gain and shutter speed. For convenience, also add
fields for minimum and maximum frame durations.

Populate these new fields when setting up the CameraMode structure.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Naushir Patuck 2023-03-27 08:35:28 +01:00 • committed by Kieran Bingham
parent d942bdc913
commit d6e85bdfe9
2 changed files with 25 additions and 1 deletions
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16
src/ipa/raspberrypi/raspberrypi.cpp
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@ -407,11 +407,27 @@ void IPARPi::setMode(const IPACameraSensorInfo &sensorInfo)
mode_.minFrameLength = sensorInfo.minFrameLength;
mode_.maxFrameLength = sensorInfo.maxFrameLength;
/* Store these for convenience. */
mode_.minFrameDuration = mode_.minFrameLength * mode_.minLineLength;
mode_.maxFrameDuration = mode_.maxFrameLength * mode_.maxLineLength;
/*
* Some sensors may have different sensitivities in different modes;
* the CamHelper will know the correct value.
*/
mode_.sensitivity = helper_->getModeSensitivity(mode_);
const ControlInfo &gainCtrl = sensorCtrls_.at(V4L2_CID_ANALOGUE_GAIN);
const ControlInfo &shutterCtrl = sensorCtrls_.at(V4L2_CID_EXPOSURE);
mode_.minAnalogueGain = helper_->gain(gainCtrl.min().get<int32_t>());
mode_.maxAnalogueGain = helper_->gain(gainCtrl.max().get<int32_t>());
/* Shutter speed is calculated based on the limits of the frame durations. */
mode_.minShutter = helper_->exposure(shutterCtrl.min().get<int32_t>(), mode_.minLineLength);
mode_.maxShutter = Duration::max();
helper_->getBlanking(mode_.maxShutter,
mode_.minFrameDuration, mode_.maxFrameDuration);
}
int IPARPi::configure(const IPACameraSensorInfo &sensorInfo, const IPAConfig &ipaConfig,