ipa: rkisp1: Instantiate CameraSensorHelper

When the AGC will run, it will use analogue gains as double values. We
will need those values to be converted to apply the control. Introduce
CameraSensorHelper and call it at init().

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
index 910ad952..73a7f582 100644
--- a/src/ipa/rkisp1/rkisp1.cpp
+++ b/src/ipa/rkisp1/rkisp1.cpp
@@ -25,6 +25,8 @@
 
 #include <libcamera/internal/mapped_framebuffer.h>
 
+#include "libipa/camera_sensor_helper.h"
+
 namespace libcamera {
 
 LOG_DEFINE_CATEGORY(IPARkISP1)
@@ -73,10 +75,12 @@ private:
 	unsigned int hwHistBinNMax_;
 	unsigned int hwGammaOutMaxSamples_;
 	unsigned int hwHistogramWeightGridsSize_;
+
+	/* Interface to the Camera Helper */
+	std::unique_ptr<CameraSensorHelper> camHelper_;
 };
 
-int IPARkISP1::init([[maybe_unused]] const IPASettings &settings,
-		    unsigned int hwRevision)
+int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision)
 {
 	/* \todo Add support for other revisions */
 	switch (hwRevision) {
@@ -100,6 +104,15 @@ int IPARkISP1::init([[maybe_unused]] const IPASettings &settings,
 	}
 
 	LOG(IPARkISP1, Debug) << "Hardware revision is " << hwRevision;
+
+	camHelper_ = CameraSensorHelperFactory::create(settings.sensorModel);
+	if (!camHelper_) {
+		LOG(IPARkISP1, Error)
+			<< "Failed to create camera sensor helper for "
+			<< settings.sensorModel;
+		return -ENODEV;
+	}
+
 	return 0;
 }