diff options
Diffstat (limited to 'src/ipa/raspberrypi/cam_helper_imx519.cpp')
| -rw-r--r-- | src/ipa/raspberrypi/cam_helper_imx519.cpp | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/src/ipa/raspberrypi/cam_helper_imx519.cpp b/src/ipa/raspberrypi/cam_helper_imx519.cpp deleted file mode 100644 index eaf24982..00000000 --- a/src/ipa/raspberrypi/cam_helper_imx519.cpp +++ /dev/null @@ -1,185 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ -/* - * Based on cam_helper_imx477.cpp - * Copyright (C) 2020, Raspberry Pi (Trading) Limited - * - * cam_helper_imx519.cpp - camera helper for imx519 sensor - * Copyright (C) 2021, Arducam Technology co., Ltd. - */ - -#include <assert.h> -#include <cmath> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> - -#include <libcamera/base/log.h> - -#include "cam_helper.hpp" -#include "md_parser.hpp" - -using namespace RPiController; -using namespace libcamera; -using libcamera::utils::Duration; - -namespace libcamera { -LOG_DECLARE_CATEGORY(IPARPI) -} - -/* - * We care about two gain registers and a pair of exposure registers. Their - * I2C addresses from the Sony IMX519 datasheet: - */ -constexpr uint32_t expHiReg = 0x0202; -constexpr uint32_t expLoReg = 0x0203; -constexpr uint32_t gainHiReg = 0x0204; -constexpr uint32_t gainLoReg = 0x0205; -constexpr uint32_t frameLengthHiReg = 0x0340; -constexpr uint32_t frameLengthLoReg = 0x0341; -constexpr std::initializer_list<uint32_t> registerList = - { expHiReg, expLoReg, gainHiReg, gainLoReg, frameLengthHiReg, frameLengthLoReg }; - -class CamHelperImx519 : public CamHelper -{ -public: - CamHelperImx519(); - uint32_t GainCode(double gain) const override; - double Gain(uint32_t gain_code) const override; - void Prepare(libcamera::Span<const uint8_t> buffer, Metadata &metadata) override; - uint32_t GetVBlanking(Duration &exposure, Duration minFrameDuration, - Duration maxFrameDuration) const override; - void GetDelays(int &exposure_delay, int &gain_delay, - int &vblank_delay) const override; - bool SensorEmbeddedDataPresent() const override; - -private: - /* - * Smallest difference between the frame length and integration time, - * in units of lines. - */ - static constexpr int frameIntegrationDiff = 32; - /* Maximum frame length allowable for long exposure calculations. */ - static constexpr int frameLengthMax = 0xffdc; - /* Largest long exposure scale factor given as a left shift on the frame length. */ - static constexpr int longExposureShiftMax = 7; - - void PopulateMetadata(const MdParser::RegisterMap ®isters, - Metadata &metadata) const override; -}; - -CamHelperImx519::CamHelperImx519() - : CamHelper(std::make_unique<MdParserSmia>(registerList), frameIntegrationDiff) -{ -} - -uint32_t CamHelperImx519::GainCode(double gain) const -{ - return static_cast<uint32_t>(1024 - 1024 / gain); -} - -double CamHelperImx519::Gain(uint32_t gain_code) const -{ - return 1024.0 / (1024 - gain_code); -} - -void CamHelperImx519::Prepare(libcamera::Span<const uint8_t> buffer, Metadata &metadata) -{ - MdParser::RegisterMap registers; - DeviceStatus deviceStatus; - - if (metadata.Get("device.status", deviceStatus)) { - LOG(IPARPI, Error) << "DeviceStatus not found from DelayedControls"; - return; - } - - parseEmbeddedData(buffer, metadata); - - /* - * The DeviceStatus struct is first populated with values obtained from - * DelayedControls. If this reports frame length is > frameLengthMax, - * it means we are using a long exposure mode. Since the long exposure - * scale factor is not returned back through embedded data, we must rely - * on the existing exposure lines and frame length values returned by - * DelayedControls. - * - * Otherwise, all values are updated with what is reported in the - * embedded data. - */ - if (deviceStatus.frame_length > frameLengthMax) { - DeviceStatus parsedDeviceStatus; - - metadata.Get("device.status", parsedDeviceStatus); - parsedDeviceStatus.shutter_speed = deviceStatus.shutter_speed; - parsedDeviceStatus.frame_length = deviceStatus.frame_length; - metadata.Set("device.status", parsedDeviceStatus); - - LOG(IPARPI, Debug) << "Metadata updated for long exposure: " - << parsedDeviceStatus; - } -} - -uint32_t CamHelperImx519::GetVBlanking(Duration &exposure, - Duration minFrameDuration, - Duration maxFrameDuration) const -{ - uint32_t frameLength, exposureLines; - unsigned int shift = 0; - - frameLength = mode_.height + CamHelper::GetVBlanking(exposure, minFrameDuration, - maxFrameDuration); - /* - * Check if the frame length calculated needs to be setup for long - * exposure mode. This will require us to use a long exposure scale - * factor provided by a shift operation in the sensor. - */ - while (frameLength > frameLengthMax) { - if (++shift > longExposureShiftMax) { - shift = longExposureShiftMax; - frameLength = frameLengthMax; - break; - } - frameLength >>= 1; - } - - if (shift) { - /* Account for any rounding in the scaled frame length value. */ - frameLength <<= shift; - exposureLines = ExposureLines(exposure); - exposureLines = std::min(exposureLines, frameLength - frameIntegrationDiff); - exposure = Exposure(exposureLines); - } - - return frameLength - mode_.height; -} - -void CamHelperImx519::GetDelays(int &exposure_delay, int &gain_delay, - int &vblank_delay) const -{ - exposure_delay = 2; - gain_delay = 2; - vblank_delay = 3; -} - -bool CamHelperImx519::SensorEmbeddedDataPresent() const -{ - return true; -} - -void CamHelperImx519::PopulateMetadata(const MdParser::RegisterMap ®isters, - Metadata &metadata) const -{ - DeviceStatus deviceStatus; - - deviceStatus.shutter_speed = Exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg)); - deviceStatus.analogue_gain = Gain(registers.at(gainHiReg) * 256 + registers.at(gainLoReg)); - deviceStatus.frame_length = registers.at(frameLengthHiReg) * 256 + registers.at(frameLengthLoReg); - - metadata.Set("device.status", deviceStatus); -} - -static CamHelper *Create() -{ - return new CamHelperImx519(); -} - -static RegisterCamHelper reg("imx519", &Create); |