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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* rkisp1.cpp - RkISP1 Image Processing Algorithms
*/
#include <algorithm>
#include <math.h>
#include <queue>
#include <stdint.h>
#include <string.h>
#include <sys/mman.h>
#include <linux/rkisp1-config.h>
#include <libcamera/buffer.h>
#include <libcamera/control_ids.h>
#include <libcamera/ipa/ipa_interface.h>
#include <libcamera/ipa/ipa_module_info.h>
#include <libcamera/ipa/rkisp1.h>
#include <libcamera/request.h>
#include <libipa/ipa_interface_wrapper.h>
#include "libcamera/internal/log.h"
#include "libcamera/internal/utils.h"
namespace libcamera {
LOG_DEFINE_CATEGORY(IPARkISP1)
class IPARkISP1 : public IPAInterface
{
public:
int init(const IPASettings &settings) override { return 0; }
int start() override { return 0; }
void stop() override {}
void configure(const CameraSensorInfo &info,
const std::map<unsigned int, IPAStream> &streamConfig,
const std::map<unsigned int, const ControlInfoMap &> &entityControls) override;
void mapBuffers(const std::vector<IPABuffer> &buffers) override;
void unmapBuffers(const std::vector<unsigned int> &ids) override;
void processEvent(const IPAOperationData &event) override;
private:
void queueRequest(unsigned int frame, rkisp1_isp_params_cfg *params,
const ControlList &controls);
void updateStatistics(unsigned int frame,
const rkisp1_stat_buffer *stats);
void setControls(unsigned int frame);
void metadataReady(unsigned int frame, unsigned int aeState);
std::map<unsigned int, FrameBuffer> buffers_;
std::map<unsigned int, void *> buffersMemory_;
ControlInfoMap ctrls_;
/* Camera sensor controls. */
bool autoExposure_;
uint32_t exposure_;
uint32_t minExposure_;
uint32_t maxExposure_;
uint32_t gain_;
uint32_t minGain_;
uint32_t maxGain_;
};
/**
* \todo The RkISP1 pipeline currently provides an empty CameraSensorInfo
* if the connected sensor does not provide enough information to properly
* assemble one. Make sure the reported sensor information are relevant
* before accessing them.
*/
void IPARkISP1::configure(const CameraSensorInfo &info,
const std::map<unsigned int, IPAStream> &streamConfig,
const std::map<unsigned int, const ControlInfoMap &> &entityControls)
{
if (entityControls.empty())
return;
ctrls_ = entityControls.at(0);
const auto itExp = ctrls_.find(V4L2_CID_EXPOSURE);
if (itExp == ctrls_.end()) {
LOG(IPARkISP1, Error) << "Can't find exposure control";
return;
}
const auto itGain = ctrls_.find(V4L2_CID_ANALOGUE_GAIN);
if (itGain == ctrls_.end()) {
LOG(IPARkISP1, Error) << "Can't find gain control";
return;
}
autoExposure_ = true;
minExposure_ = std::max<uint32_t>(itExp->second.min().get<int32_t>(), 1);
maxExposure_ = itExp->second.max().get<int32_t>();
exposure_ = minExposure_;
minGain_ = std::max<uint32_t>(itGain->second.min().get<int32_t>(), 1);
maxGain_ = itGain->second.max().get<int32_t>();
gain_ = minGain_;
LOG(IPARkISP1, Info)
<< "Exposure: " << minExposure_ << "-" << maxExposure_
<< " Gain: " << minGain_ << "-" << maxGain_;
setControls(0);
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