new file mode 100644
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2021, Raspberry Pi (Trading) Limited
+ *
+ * cam_helper_imx290.cpp - camera helper for imx290 sensor
+ */
+
+#include <math.h>
+
+#include "cam_helper.hpp"
+
+using namespace RPiController;
+
+class CamHelperImx290 : public CamHelper
+{
+public:
+ CamHelperImx290();
+ uint32_t GainCode(double gain) const override;
+ double Gain(uint32_t gain_code) const override;
+ void GetDelays(int &exposure_delay, int &gain_delay,
+ int &vblank_delay) const override;
+ unsigned int HideFramesModeSwitch() const override;
+
+private:
+ /*
+ * Smallest difference between the frame length and integration time,
+ * in units of lines.
+ */
+ static constexpr int frameIntegrationDiff = 2;
+};
+
+CamHelperImx290::CamHelperImx290()
+ : CamHelper(nullptr, frameIntegrationDiff)
+{
+}
+
+uint32_t CamHelperImx290::GainCode(double gain) const
+{
+ int code = 66.6667 * log10(gain);
+ return std::max(0, std::min(code, 0xf0));
+}
+
+double CamHelperImx290::Gain(uint32_t gain_code) const
+{
+ return pow(10, 0.015 * gain_code);
+}
+
+void CamHelperImx290::GetDelays(int &exposure_delay, int &gain_delay,
+ int &vblank_delay) const
+{
+ exposure_delay = 2;
+ gain_delay = 2;
+ vblank_delay = 2;
+}
+
+unsigned int CamHelperImx290::HideFramesModeSwitch() const
+{
+ /* After a mode switch, we seem to get 1 bad frame. */
+ return 1;
+}
+
+static CamHelper *Create()
+{
+ return new CamHelperImx290();
+}
+
+static RegisterCamHelper reg("imx290", &Create);
new file mode 100644
@@ -0,0 +1,165 @@
+{
+ "rpi.black_level":
+ {
+ "black_level": 3840
+ },
+ "rpi.dpc":
+ {
+ },
+ "rpi.lux":
+ {
+ "reference_shutter_speed": 6813,
+ "reference_gain": 1.0,
+ "reference_aperture": 1.0,
+ "reference_lux": 890,
+ "reference_Y": 12900
+ },
+ "rpi.noise":
+ {
+ "reference_constant": 0,
+ "reference_slope": 2.67
+ },
+ "rpi.geq":
+ {
+ "offset": 187,
+ "slope": 0.00842
+ },
+ "rpi.sdn":
+ {
+ },
+ "rpi.awb":
+ {
+ "bayes": 0
+ },
+ "rpi.agc":
+ {
+ "speed": 0.2,
+ "metering_modes":
+ {
+ "matrix":
+ {
+ "weights":
+ [
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
+ ]
+ },
+ "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
+ ]
+ }
+ },
+ "exposure_modes":
+ {
+ "normal":
+ {
+ "shutter":
+ [
+ 10, 30000, 60000
+ ],
+ "gain":
+ [
+ 1.0, 2.0, 8.0
+ ]
+ },
+ "sport":
+ {
+ "shutter":
+ [
+ 10, 5000, 10000, 20000, 120000
+ ],
+ "gain":
+ [
+ 1.0, 2.0, 4.0, 6.0, 6.0
+ ]
+ }
+ },
+ "constraint_modes":
+ {
+ "normal":
+ [
+ ],
+ "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, 0.16, 10000, 0.16
+ ]
+ },
+ "rpi.alsc":
+ {
+ "omega": 1.3,
+ "n_iter": 100,
+ "luminance_strength": 0.7,
+ "luminance_lut":
+ [
+ 2.844, 2.349, 2.018, 1.775, 1.599, 1.466, 1.371, 1.321, 1.306, 1.316, 1.357, 1.439, 1.552, 1.705, 1.915, 2.221,
+ 2.576, 2.151, 1.851, 1.639, 1.478, 1.358, 1.272, 1.231, 1.218, 1.226, 1.262, 1.335, 1.438, 1.571, 1.766, 2.067,
+ 2.381, 2.005, 1.739, 1.545, 1.389, 1.278, 1.204, 1.166, 1.153, 1.161, 1.194, 1.263, 1.356, 1.489, 1.671, 1.943,
+ 2.242, 1.899, 1.658, 1.481, 1.329, 1.225, 1.156, 1.113, 1.096, 1.107, 1.143, 1.201, 1.289, 1.423, 1.607, 1.861,
+ 2.152, 1.831, 1.602, 1.436, 1.291, 1.193, 1.121, 1.069, 1.047, 1.062, 1.107, 1.166, 1.249, 1.384, 1.562, 1.801,
+ 2.104, 1.795, 1.572, 1.407, 1.269, 1.174, 1.099, 1.041, 1.008, 1.029, 1.083, 1.146, 1.232, 1.364, 1.547, 1.766,
+ 2.104, 1.796, 1.572, 1.403, 1.264, 1.171, 1.097, 1.036, 1.001, 1.025, 1.077, 1.142, 1.231, 1.363, 1.549, 1.766,
+ 2.148, 1.827, 1.594, 1.413, 1.276, 1.184, 1.114, 1.062, 1.033, 1.049, 1.092, 1.153, 1.242, 1.383, 1.577, 1.795,
+ 2.211, 1.881, 1.636, 1.455, 1.309, 1.214, 1.149, 1.104, 1.081, 1.089, 1.125, 1.184, 1.273, 1.423, 1.622, 1.846,
+ 2.319, 1.958, 1.698, 1.516, 1.362, 1.262, 1.203, 1.156, 1.137, 1.142, 1.171, 1.229, 1.331, 1.484, 1.682, 1.933,
+ 2.459, 2.072, 1.789, 1.594, 1.441, 1.331, 1.261, 1.219, 1.199, 1.205, 1.232, 1.301, 1.414, 1.571, 1.773, 2.052,
+ 2.645, 2.206, 1.928, 1.728, 1.559, 1.451, 1.352, 1.301, 1.282, 1.289, 1.319, 1.395, 1.519, 1.685, 1.904, 2.227
+ ],
+ "sigma": 0.005,
+ "sigma_Cb": 0.005
+ },
+ "rpi.contrast":
+ {
+ "ce_enable": 1,
+ "gamma_curve":
+ [
+ 0, 0, 1024, 5040, 2048, 9338, 3072, 12356, 4096, 15312, 5120, 18051, 6144, 20790, 7168, 23193,
+ 8192, 25744, 9216, 27942, 10240, 30035, 11264, 32005, 12288, 33975, 13312, 35815, 14336, 37600, 15360, 39168,
+ 16384, 40642, 18432, 43379, 20480, 45749, 22528, 47753, 24576, 49621, 26624, 51253, 28672, 52698, 30720, 53796,
+ 32768, 54876, 36864, 57012, 40960, 58656, 45056, 59954, 49152, 61183, 53248, 62355, 57344, 63419, 61440, 64476,
+ 65535, 65535
+ ]
+ },
+ "rpi.sharpen":
+ {
+ },
+ "rpi.ccm":
+ {
+ "ccms":
+ [
+ {
+ "ct": 3900, "ccm":
+ [
+ 1.54659, -0.17707, -0.36953, -0.51471, 1.72733, -0.21262, 0.06667, -0.92279, 1.85612
+ ]
+ }
+ ]
+ },
+ "rpi.focus":
+ {
+ }
+}
@@ -2,6 +2,7 @@
conf_files = files([
'imx219.json',
+ 'imx290.json',
'imx477.json',
'ov5647.json',
'uncalibrated.json',
@@ -20,6 +20,7 @@ rpi_ipa_sources = files([
'cam_helper.cpp',
'cam_helper_ov5647.cpp',
'cam_helper_imx219.cpp',
+ 'cam_helper_imx290.cpp',
'cam_helper_imx477.cpp',
'controller/controller.cpp',
'controller/histogram.cpp',
imx290 and imx327 share the same kernel driver (imx290.c) and are therefore both recognised here as "imx290". We add the necessary CamHelper for these sensors, as well as a camera tuning file. The tuning was done with an Innomaker STARVIS IMX327LQR module. These have no IR cut filter so there is no proper colour tuning. However, you should obtain reasonable results for most modules using this sensor. Specific tunings for further modules can always be added subsequently. To use this sensor on the Raspberry Pi platform, please add dtoverlay=imx290,clock-frequency=74250000 into your /boot/config.txt file. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> --- src/ipa/raspberrypi/cam_helper_imx290.cpp | 67 +++++++++ src/ipa/raspberrypi/data/imx290.json | 165 ++++++++++++++++++++++ src/ipa/raspberrypi/data/meson.build | 1 + src/ipa/raspberrypi/meson.build | 1 + 4 files changed, 234 insertions(+) create mode 100644 src/ipa/raspberrypi/cam_helper_imx290.cpp create mode 100644 src/ipa/raspberrypi/data/imx290.json