From e342e522cb06c3e946f4da4db29e2480d37065cc Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 24 Feb 2022 19:01:38 +0200
Subject: libipa: camera_sensor_helper: Add IMX296 helper

The IMX296 is a Sony sensor that expresses its gain in 0.1dB units. It
thus maps to the exponential gain model.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
---
 src/ipa/libipa/camera_sensor_helper.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/ipa/libipa/camera_sensor_helper.cpp b/src/ipa/libipa/camera_sensor_helper.cpp
index 136b9f6b..0ec51f4e 100644
--- a/src/ipa/libipa/camera_sensor_helper.cpp
+++ b/src/ipa/libipa/camera_sensor_helper.cpp
@@ -385,6 +385,17 @@ public:
 };
 REGISTER_CAMERA_SENSOR_HELPER("imx290", CameraSensorHelperImx290)
 
+class CameraSensorHelperImx296 : public CameraSensorHelper
+{
+public:
+	CameraSensorHelperImx296()
+	{
+		gainType_ = AnalogueGainExponential;
+		gainConstants_.exp = { 1.0, expGainDb(0.1) };
+	}
+};
+REGISTER_CAMERA_SENSOR_HELPER("imx296", CameraSensorHelperImx296)
+
 class CameraSensorHelperOv2740 : public CameraSensorHelper
 {
 public:
-- 
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