diff options
Diffstat (limited to 'src/ipa')
| -rw-r--r-- | src/ipa/ipu3/ipu3.cpp | 72 |
1 files changed, 69 insertions, 3 deletions
diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp index c903f751..36a06966 100644 --- a/src/ipa/ipu3/ipu3.cpp +++ b/src/ipa/ipu3/ipu3.cpp @@ -5,7 +5,9 @@ * ipu3.cpp - IPU3 Image Processing Algorithms */ +#include <array> #include <stdint.h> +#include <utility> #include <linux/intel-ipu3.h> #include <linux/v4l2-controls.h> @@ -37,7 +39,11 @@ namespace ipa::ipu3 { class IPAIPU3 : public IPAIPU3Interface { public: - int init(const IPASettings &settings) override; + int init(const IPASettings &settings, + const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls) override; + int start() override; void stop() override {} @@ -85,14 +91,74 @@ private: struct ipu3_uapi_grid_config bdsGrid_; }; -int IPAIPU3::init(const IPASettings &settings) +/** + * Initialize the IPA module and its controls. + * + * This function receives the camera sensor information from the pipeline + * handler, computes the limits of the controls it handles and returns + * them in the \a ipaControls output parameter. + */ +int IPAIPU3::init(const IPASettings &settings, + const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls) { camHelper_ = CameraSensorHelperFactory::create(settings.sensorModel); if (camHelper_ == nullptr) { - LOG(IPAIPU3, Error) << "Failed to create camera sensor helper for " << settings.sensorModel; + LOG(IPAIPU3, Error) + << "Failed to create camera sensor helper for " + << settings.sensorModel; return -ENODEV; } + /* Initialize Controls. */ + ControlInfoMap::Map controls{}; + + /* + * Compute exposure time limits. + * + * Initialize the control using the line length and pixel rate of the + * current configuration converted to microseconds. Use the + * V4L2_CID_EXPOSURE control to get exposure min, max and default and + * convert it from lines to microseconds. + */ + double lineDuration = sensorInfo.lineLength / (sensorInfo.pixelRate / 1e6); + const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second; + int32_t minExposure = v4l2Exposure.min().get<int32_t>() * lineDuration; + int32_t maxExposure = v4l2Exposure.max().get<int32_t>() * lineDuration; + int32_t defExposure = v4l2Exposure.def().get<int32_t>() * lineDuration; + controls[&controls::ExposureTime] = ControlInfo(minExposure, maxExposure, + defExposure); + + /* + * Compute the frame duration limits. + * + * The frame length is computed assuming a fixed line length combined + * with the vertical frame sizes. + */ + const ControlInfo &v4l2HBlank = sensorControls.find(V4L2_CID_HBLANK)->second; + uint32_t hblank = v4l2HBlank.def().get<int32_t>(); + uint32_t lineLength = sensorInfo.outputSize.width + hblank; + + const ControlInfo &v4l2VBlank = sensorControls.find(V4L2_CID_VBLANK)->second; + std::array<uint32_t, 3> frameHeights{ + v4l2VBlank.min().get<int32_t>() + sensorInfo.outputSize.height, + v4l2VBlank.max().get<int32_t>() + sensorInfo.outputSize.height, + v4l2VBlank.def().get<int32_t>() + sensorInfo.outputSize.height, + }; + + std::array<int64_t, 3> frameDurations; + for (unsigned int i = 0; i < frameHeights.size(); ++i) { + uint64_t frameSize = lineLength * frameHeights[i]; + frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U); + } + + controls[&controls::FrameDurationLimits] = ControlInfo(frameDurations[0], + frameDurations[1], + frameDurations[2]); + + *ipaControls = ControlInfoMap(std::move(controls), controls::controls); + return 0; } |