[libcamera-devel] [PATCH v2 1/4] pipeline: ipu3: Support IPA tuning file

[Laurent Pinchart]

Pass the path name of the YAML IPA tuning file to the IPA module. The
file name is derived from the sensor name ("${sensor_name}.yaml"), with
a fallback to "uncalibrated.yaml".

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
Changes since v1:

- Drop LIBCAMERA_IPU3_TUNING_FILE
---
 src/libcamera/pipeline/ipu3/ipu3.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index 4fe52f74a68c..9df2460323c1 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -1243,8 +1243,16 @@ int IPU3CameraData::loadIPA()
 	if (ret)
 		return ret;
 
-	ret = ipa_->init(IPASettings{ "", sensor->model() }, sensorInfo,
-			 sensor->controls(), &ipaControls_);
+	/*
+	 * The API tuning file is made from the sensor name. If the tuning file
+	 * isn't found, fall back to the 'uncalibrated' file.
+	 */
+	std::string ipaTuningFile = ipa_->configurationFile(sensor->model() + ".yaml");
+	if (ipaTuningFile.empty())
+		ipaTuningFile = ipa_->configurationFile("uncalibrated.yaml");
+
+	ret = ipa_->init(IPASettings{ ipaTuningFile, sensor->model() },
+			 sensorInfo, sensor->controls(), &ipaControls_);
 	if (ret) {
 		LOG(IPU3, Error) << "Failed to initialise the IPU3 IPA";
 		return ret;
-- 
Regards,

Laurent Pinchart