726e9274ea
Split the Raspberry Pi pipeline handler and IPA source code into common
and VC4/BCM2835 specific file structures.
For the pipeline handler, the common code files now live in
src/libcamera/pipeline/rpi/common/
and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/.
For the IPA, the common code files now live in
src/ipa/rpi/{cam_helper,controller}/
and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the
camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/.
To build the pipeline and IPA, the meson configuration options have now
changed from "raspberrypi" to "rpi/vc4":
meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* Copyright (C) 2021, Raspberry Pi Ltd
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*
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* cam_helper_ov9281.cpp - camera information for ov9281 sensor
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*/
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#include <assert.h>
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#include "cam_helper.h"
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using namespace RPiController;
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class CamHelperOv9281 : public CamHelper
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{
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public:
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CamHelperOv9281();
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uint32_t gainCode(double gain) const override;
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double gain(uint32_t gainCode) const override;
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void getDelays(int &exposureDelay, int &gainDelay,
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int &vblankDelay, int &hblankDelay) const override;
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private:
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/*
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* Smallest difference between the frame length and integration time,
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* in units of lines.
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*/
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static constexpr int frameIntegrationDiff = 4;
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};
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/*
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* OV9281 doesn't output metadata, so we have to use the "unicam parser" which
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* works by counting frames.
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*/
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CamHelperOv9281::CamHelperOv9281()
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: CamHelper({}, frameIntegrationDiff)
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{
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}
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uint32_t CamHelperOv9281::gainCode(double gain) const
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{
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return static_cast<uint32_t>(gain * 16.0);
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}
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double CamHelperOv9281::gain(uint32_t gainCode) const
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{
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return static_cast<double>(gainCode) / 16.0;
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}
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void CamHelperOv9281::getDelays(int &exposureDelay, int &gainDelay,
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int &vblankDelay, int &hblankDelay) const
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{
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/* The driver appears to behave as follows: */
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exposureDelay = 2;
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gainDelay = 2;
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vblankDelay = 2;
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hblankDelay = 2;
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}
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static CamHelper *create()
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{
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return new CamHelperOv9281();
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}
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static RegisterCamHelper reg("ov9281", &create);
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