ipa: raspberrypi: Add sensitivity field to camera mode

We use the CamHelper class to initialise it to the usual value of 1.

The CamHelper's GetModeSensitivity method can be redefined to
implement a different behaviour for sensors that require it.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/ipa/raspberrypi/cam_helper.hpp b/src/ipa/raspberrypi/cam_helper.hpp
index 200cc83f..0643b77a 100644
--- a/src/ipa/raspberrypi/cam_helper.hpp
+++ b/src/ipa/raspberrypi/cam_helper.hpp
@@ -41,6 +41,8 @@ namespace RPiController {
 //
 // A method to query if the sensor outputs embedded data that can be parsed.
 //
+// A method to return the sensitivity of a given camera mode.
+//
 // A parser to parse the embedded data buffers provided by some sensors (for
 // example, the imx219 does; the ov5647 doesn't). This allows us to know for
 // sure the exposure and gain of the frame we're looking at. CamHelper
@@ -84,6 +86,7 @@ public:
 	virtual void GetDelays(int &exposure_delay, int &gain_delay,
 			       int &vblank_delay) const;
 	virtual bool SensorEmbeddedDataPresent() const;
+	virtual double GetModeSensitivity(const CameraMode &mode) const;
 	virtual unsigned int HideFramesStartup() const;
 	virtual unsigned int HideFramesModeSwitch() const;
 	virtual unsigned int MistrustFramesStartup() const;