From 0040820fc175a202f12d41f9b18e91e1e540d0df Mon Sep 17 00:00:00 2001
From: Paul Elder <paul.elder@ideasonboard.com>
Date: Fri, 18 Feb 2022 20:18:43 +0900
Subject: libipa: camera_sensor_helper: Add OV5640 helper

The OV5640 is an OmniVision sensor with a linear gain model, expressed
in 1/16 steps.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
---
 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 0ec51f4e..c098e48c 100644
--- a/src/ipa/libipa/camera_sensor_helper.cpp
+++ b/src/ipa/libipa/camera_sensor_helper.cpp
@@ -407,6 +407,17 @@ public:
 };
 REGISTER_CAMERA_SENSOR_HELPER("ov2740", CameraSensorHelperOv2740)
 
+class CameraSensorHelperOv5640 : public CameraSensorHelper
+{
+public:
+	CameraSensorHelperOv5640()
+	{
+		gainType_ = AnalogueGainLinear;
+		gainConstants_.linear = { 1, 0, 0, 16 };
+	}
+};
+REGISTER_CAMERA_SENSOR_HELPER("ov5640", CameraSensorHelperOv5640)
+
 class CameraSensorHelperOv5670 : public CameraSensorHelper
 {
 public:
-- 
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