[libcamera-devel] [PATCH 1/4] ipa: camera_sensor_helper: Add OV4689 support

[Mikhail Rudenko]

Add support for Omnivision OV4689 image sensor to libipa.

The sensor implements a linear gain equation with analogue gain
control values 0-2047 corresponding to 0x-16x physical gain range.

Signed-off-by: Mikhail Rudenko <mike.rudenko at gmail.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 3d8a2835..075c568e 100644
--- a/src/ipa/libipa/camera_sensor_helper.cpp
+++ b/src/ipa/libipa/camera_sensor_helper.cpp
@@ -461,6 +461,17 @@ public:
 };
 REGISTER_CAMERA_SENSOR_HELPER("ov2740", CameraSensorHelperOv2740)
 
+class CameraSensorHelperOv4689 : public CameraSensorHelper
+{
+public:
+	CameraSensorHelperOv4689()
+	{
+		gainType_ = AnalogueGainLinear;
+		gainConstants_.linear = { 1, 0, 0, 128 };
+	}
+};
+REGISTER_CAMERA_SENSOR_HELPER("ov4689", CameraSensorHelperOv4689)
+
 class CameraSensorHelperOv5640 : public CameraSensorHelper
 {
 public:
-- 
2.39.0