libcamera: camera_sensor_properties: Add vd56g3 camera sensor

Add unit cell size from the 'pixel size' element in the datasheet.
Delays are set to 2 in case a setting is entered at the very end of the
N frame, the N+1 frame will miss it and only the N+2 frame will use this
new setting.

Note that vd56g3 has a diagonal color test pattern, but does not match
any description in specified test patterns and therefore is ignored.

Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/libcamera/sensor/camera_sensor_properties.cpp

@@ -456,6 +456,27 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen
 			},
 			.sensorDelays = { },
 		} },
+		{ "vd56g3", {
+			.unitCellSize = { 2610, 2610 },
+			.testPatternModes = {
+				{ controls::draft::TestPatternModeOff, 0 },
+				{ controls::draft::TestPatternModeSolidColor, 1 },
+				{ controls::draft::TestPatternModePn9, 6 },
+				/*
+				 * No corresponding test pattern mode for:
+				 * 2: "Vertical Color Bars"
+				 * 3: "Horizontal Gray Scale"
+				 * 4: "Vertical Gray Scale"
+				 * 5: "Diagonal Gray Scale"
+				 */
+			},
+			.sensorDelays = {
+				.exposureDelay = 2,
+				.gainDelay = 2,
+				.vblankDelay = 2,
+				.hblankDelay = 2
+			},
+		} },
 	};
 
 	const auto it = sensorProps.find(sensor);