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-rw-r--r--src/ipa/ipu3/ipu3.cpp72
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;
}