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ipa: ipu3: Consolidate querying of exposure and gain limits

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The exposure and gain limits are required for AGC configuration
handled in IPAIPU3::updateSessionConfiguration(), which is happening
already. Therefore the max/min private members in IPAIPU3 class for
exposure/gain serve no use except setting initial values of exposure_
and gain_ members.

Drop the max/min private members from IPAIPU3 class and set initial
gain_ and exposure_ in  IPAIPU3::updateSessionConfiguration().

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Umang Jain 2022-03-01 13:16:40 +05:30
parent 4b2251509f
commit a76b06e951
1 changed files with 2 additions and 24 deletions
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26
src/ipa/ipu3/ipu3.cpp
View file

@ -169,11 +169,7 @@ private:
/* Camera sensor controls. */
uint32_t defVBlank_;
uint32_t exposure_;
uint32_t minExposure_;
uint32_t maxExposure_;
uint32_t gain_;
uint32_t minGain_;
uint32_t maxGain_;
/* Interface to the Camera Helper */
std::unique_ptr<CameraSensorHelper> camHelper_;
@ -194,10 +190,12 @@ void IPAIPU3::updateSessionConfiguration(const ControlInfoMap &sensorControls)
const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second;
int32_t minExposure = v4l2Exposure.min().get<int32_t>();
int32_t maxExposure = v4l2Exposure.max().get<int32_t>();
exposure_ = minExposure;
const ControlInfo &v4l2Gain = sensorControls.find(V4L2_CID_ANALOGUE_GAIN)->second;
int32_t minGain = v4l2Gain.min().get<int32_t>();
int32_t maxGain = v4l2Gain.max().get<int32_t>();
gain_ = minGain;
/*
* When the AGC computes the new exposure values for a frame, it needs
@ -434,32 +432,12 @@ int IPAIPU3::configure(const IPAConfigInfo &configInfo,
*/
sensorCtrls_ = configInfo.sensorControls;
const auto itExp = sensorCtrls_.find(V4L2_CID_EXPOSURE);
if (itExp == sensorCtrls_.end()) {
LOG(IPAIPU3, Error) << "Can't find exposure control";
return -EINVAL;
}
const auto itGain = sensorCtrls_.find(V4L2_CID_ANALOGUE_GAIN);
if (itGain == sensorCtrls_.end()) {
LOG(IPAIPU3, Error) << "Can't find gain control";
return -EINVAL;
}
const auto itVBlank = sensorCtrls_.find(V4L2_CID_VBLANK);
if (itVBlank == sensorCtrls_.end()) {
LOG(IPAIPU3, Error) << "Can't find VBLANK control";
return -EINVAL;
}
minExposure_ = itExp->second.min().get<int32_t>();
maxExposure_ = itExp->second.max().get<int32_t>();
exposure_ = minExposure_;
minGain_ = itGain->second.min().get<int32_t>();
maxGain_ = itGain->second.max().get<int32_t>();
gain_ = minGain_;
defVBlank_ = itVBlank->second.def().get<int32_t>();
calculateBdsGrid(configInfo.bdsOutputSize);