diff options
| author | Jacopo Mondi <jacopo.mondi@ideasonboard.com> | 2023-07-25 15:20:40 +0200 |
|---|---|---|
| committer | Jacopo Mondi <jacopo.mondi@ideasonboard.com> | 2023-12-29 11:33:26 +0100 |
| commit | 9dbc441d9d386f39d32387f9a01a844c2d4d354f (patch) | |
| tree | 8019868d4d735588dc2459162ad4bd06710911b6 /src/ipa/rpi | |
| parent | eb7c75e5f7cc96db6e35ec3001266a9c782e6bda (diff) | |
ipa: rpi: Provide a Camera Helper for the OV64A40
Support the OV64A40 sensor with a camera helper to manage the gain
model, light sensitivity, and control delays.
Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Diffstat (limited to 'src/ipa/rpi')
| -rw-r--r-- | src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp | 73 | ||||
| -rw-r--r-- | src/ipa/rpi/cam_helper/meson.build | 1 |
2 files changed, 74 insertions, 0 deletions
diff --git a/src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp b/src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp new file mode 100644 index 00000000..4575cc4e --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2021, Raspberry Pi Ltd + * + * cam_helper_ov64a40.cpp - camera information for ov64a40 sensor + */ + +#include <assert.h> + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperOv64a40 : public CamHelper +{ +public: + CamHelperOv64a40(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + void getDelays(int &exposureDelay, int &gainDelay, + int &vblankDelay, int &hblankDelay) const override; + double getModeSensitivity(const CameraMode &mode) const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 32; +}; + +CamHelperOv64a40::CamHelperOv64a40() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperOv64a40::gainCode(double gain) const +{ + return static_cast<uint32_t>(gain * 128.0); +} + +double CamHelperOv64a40::gain(uint32_t gainCode) const +{ + return static_cast<double>(gainCode) / 128.0; +} + +void CamHelperOv64a40::getDelays(int &exposureDelay, int &gainDelay, + int &vblankDelay, int &hblankDelay) const +{ + /* The driver appears to behave as follows: */ + exposureDelay = 2; + gainDelay = 2; + vblankDelay = 2; + hblankDelay = 2; +} + +double CamHelperOv64a40::getModeSensitivity(const CameraMode &mode) const +{ + if (mode.binX >= 2 && mode.scaleX >= 4) { + return 4.0; + } else if (mode.binX >= 2 && mode.scaleX >= 2) { + return 2.0; + } else { + return 1.0; + } +} + +static CamHelper *create() +{ + return new CamHelperOv64a40(); +} + +static RegisterCamHelper reg("ov64a40", &create); diff --git a/src/ipa/rpi/cam_helper/meson.build b/src/ipa/rpi/cam_helper/meson.build index bdf2db8e..72625057 100644 --- a/src/ipa/rpi/cam_helper/meson.build +++ b/src/ipa/rpi/cam_helper/meson.build @@ -9,6 +9,7 @@ rpi_ipa_cam_helper_sources = files([ 'cam_helper_imx477.cpp', 'cam_helper_imx519.cpp', 'cam_helper_imx708.cpp', + 'cam_helper_ov64a40.cpp', 'cam_helper_ov9281.cpp', 'md_parser_smia.cpp', ]) |