ipa: raspberrypi: Add support for imx378 sensor

This commit adds a tuning file for the 12MP imx378 sensor. The sensor
actually shares the same driver (and CamHelper) as the imx477 so only
a new tuning file is required. The default choice of imx477.json can
be overridden by pointing LIBCAMERA_RPI_TUNING_FILE at a version of
the new imx378.json file.

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

1 files changed, 338 insertions, 0 deletions

diff --git a/src/ipa/raspberrypi/data/imx378.json b/src/ipa/raspberrypi/data/imx378.json
new file mode 100644
index 00000000..3c2164e2
--- /dev/null
+++ b/src/ipa/raspberrypi/data/imx378.json
@@ -0,0 +1,338 @@
+{
+    "rpi.black_level":
+    {
+        "black_level": 4096
+    },
+    "rpi.dpc":
+    {
+    },
+    "rpi.lux":
+    {
+        "reference_shutter_speed": 9999,
+        "reference_gain": 1.95,
+        "reference_aperture": 1.0,
+        "reference_lux": 1000,
+        "reference_Y": 12996
+    },
+    "rpi.noise":
+    {
+        "reference_constant": 0,
+        "reference_slope": 2.641
+    },
+    "rpi.geq":
+    {
+        "offset": 235,
+        "slope": 0.00902
+    },
+    "rpi.sdn":
+    {
+    },
+    "rpi.awb":
+    {
+        "priors":
+        [
+            {
+                "lux": 0, "prior":
+                [
+                    2000, 1.0, 3000, 0.0, 13000, 0.0
+                ]
+            },
+            {
+                "lux": 800, "prior":
+                [
+                    2000, 0.0, 6000, 2.0, 13000, 2.0
+                ]
+            },
+            {
+                "lux": 1500, "prior":
+                [
+                    2000, 0.0, 4000, 1.0, 6000, 6.0, 6500, 7.0, 7000, 1.0, 13000, 1.0
+                ]
+            }
+        ],
+        "modes":
+        {
+            "auto":
+            {
+                "lo": 2500,
+                "hi": 8000
+            },
+            "incandescent":
+            {
+                "lo": 2500,
+                "hi": 3000
+            },
+            "tungsten":
+            {
+                "lo": 3000,
+                "hi": 3500
+            },
+            "fluorescent":
+            {
+                "lo": 4000,
+                "hi": 4700
+            },
+            "indoor":
+            {
+                "lo": 3000,
+                "hi": 5000
+            },
+            "daylight":
+            {
+                "lo": 5500,
+                "hi": 6500
+            },
+            "cloudy":
+            {
+                "lo": 7000,
+                "hi": 8100
+            }
+        },
+        "bayes": 1,
+        "ct_curve":
+        [
+            2850.0, 0.6361, 0.3911, 3550.0, 0.5386, 0.5077, 4500.0, 0.4472, 0.6171, 5600.0, 0.3906, 0.6848, 8000.0, 0.3412, 0.7441
+        ],
+        "sensitivity_r": 1.0,
+        "sensitivity_b": 1.0,
+        "transverse_pos": 0.01667,
+        "transverse_neg": 0.01195
+    },
+    "rpi.agc":
+    {
+        "metering_modes":
+        {
+            "centre-weighted":
+            {
+                "weights":
+                [
+                    3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0
+                ]
+            },
+            "spot":
+            {
+                "weights":
+                [
+                    2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+                ]
+            },
+            "matrix":
+            {
+                "weights":
+                [
+                    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
+                ]
+            }
+        },
+        "exposure_modes":
+        {
+            "normal":
+            {
+                "shutter":
+                [
+                    100, 10000, 30000, 60000, 120000
+                ],
+                "gain":
+                [
+                    1.0, 2.0, 4.0, 6.0, 6.0
+                ]
+            },
+            "short":
+            {
+                "shutter":
+                [
+                    100, 5000, 10000, 20000, 120000
+                ],
+                "gain":
+                [
+                    1.0, 2.0, 4.0, 6.0, 6.0
+                ]
+            }
+        },
+        "constraint_modes":
+        {
+            "normal":
+            [
+                {
+                    "bound": "LOWER", "q_lo": 0.98, "q_hi": 1.0, "y_target":
+                    [
+                        0, 0.5, 1000, 0.5
+                    ]
+                }
+            ],
+            "highlight":
+            [
+                {
+                    "bound": "LOWER", "q_lo": 0.98, "q_hi": 1.0, "y_target":
+                    [
+                        0, 0.5, 1000, 0.5
+                    ]
+                },
+                {
+                    "bound": "UPPER", "q_lo": 0.98, "q_hi": 1.0, "y_target":
+                    [
+                        0, 0.8, 1000, 0.8
+                    ]
+                }
+            ]
+        },
+        "y_target":
+        [
+            0, 0.16, 1000, 0.165, 10000, 0.17
+        ]
+    },
+    "rpi.alsc":
+    {
+        "omega": 1.3,
+        "n_iter": 100,
+        "luminance_strength": 0.5,
+        "calibrations_Cr":
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+                ]
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+        ],
+        "calibrations_Cb":
+        [
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+                ]
+            },
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+                "ct": 5500, "table":
+                [
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+                ]
+            }
+        ],
+        "luminance_lut":
+        [
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+        ],
+        "sigma": 0.00428,
+        "sigma_Cb": 0.00363
+    },
+    "rpi.contrast":
+    {
+        "ce_enable": 1,
+        "gamma_curve":
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+            65535, 65535
+        ]
+    },
+    "rpi.ccm":
+    {
+        "ccms":
+        [
+            {
+                "ct": 2850, "ccm":
+                [
+                    1.42601, -0.20537, -0.22063, -0.47682, 1.81987, -0.34305, 0.01854, -0.86036, 1.84181
+                ]
+            },
+            {
+                "ct": 2900, "ccm":
+                [
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+                ]
+            },
+            {
+                "ct": 3550, "ccm":
+                [
+                    1.49811, -0.33412, -0.16398, -0.40869, 1.72995, -0.32127, -0.01924, -0.62181, 1.64105
+                ]
+            },
+            {
+                "ct": 4500, "ccm":
+                [
+                    1.47015, -0.29229, -0.17786, -0.36561, 1.88919, -0.52358, -0.03552, -0.56717, 1.60269
+                ]
+            },
+            {
+                "ct": 5600, "ccm":
+                [
+                    1.60962, -0.47434, -0.13528, -0.32701, 1.73797, -0.41096, -0.07626, -0.40171, 1.47796
+                ]
+            },
+            {
+                "ct": 8000, "ccm":
+                [
+                    1.54642, -0.20396, -0.34246, -0.31748, 2.22559, -0.90811, -0.10035, -0.65877, 1.75912
+                ]
+            }
+        ]
+    },
+    "rpi.sharpen":
+    {
+    }
+}