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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2018, Google Inc.
*
* vimc.cpp - Pipeline handler for the vimc device
*/
#include <libcamera/camera.h>
#include <libcamera/stream.h>
#include "device_enumerator.h"
#include "log.h"
#include "media_device.h"
#include "pipeline_handler.h"
#include "v4l2_device.h"
namespace libcamera {
LOG_DEFINE_CATEGORY(VIMC)
class PipeHandlerVimc : public PipelineHandler
{
public:
PipeHandlerVimc(CameraManager *manager);
~PipeHandlerVimc();
std::map<Stream *, StreamConfiguration>
streamConfiguration(Camera *camera,
std::vector<Stream *> &streams) override;
int configureStreams(Camera *camera,
std::map<Stream *, StreamConfiguration> &config) override;
int allocateBuffers(Camera *camera, Stream *stream) override;
int freeBuffers(Camera *camera, Stream *stream) override;
int start(const Camera *camera) override;
void stop(const Camera *camera) override;
int queueRequest(const Camera *camera, Request *request) override;
bool match(DeviceEnumerator *enumerator);
private:
std::shared_ptr<MediaDevice> media_;
V4L2Device *video_;
Stream stream_;
};
PipeHandlerVimc::PipeHandlerVimc(CameraManager *manager)
: PipelineHandler(manager), media_(nullptr), video_(nullptr)
{
}
PipeHandlerVimc::~PipeHandlerVimc()
{
delete video_;
if (media_)
media_->release();
}
std::map<Stream *, StreamConfiguration>
PipeHandlerVimc::streamConfiguration(Camera *camera,
std::vector<Stream *> &streams)
{
std::map<Stream *, StreamConfiguration> configs;
StreamConfiguration config{};
LOG(VIMC, Debug) << "Retrieving default format";
config.width = 640;
config.height = 480;
config.pixelFormat = V4L2_PIX_FMT_RGB24;
config.bufferCount = 4;
configs[&stream_] = config;
return configs;
}
int PipeHandlerVimc::configureStreams(Camera *camera,
std::map<Stream *, StreamConfiguration> &config)
{
StreamConfiguration *cfg = &config[&stream_];
LOG(VIMC, Info) << "TODO: Configure the camera for resolution "
<< cfg->width << "x" << cfg->height;
return 0;
}
int PipeHandlerVimc::allocateBuffers(Camera *camera, Stream *stream)
{
return -ENOTRECOVERABLE;
}
int PipeHandlerVimc::freeBuffers(Camera *camera, Stream *stream)
{
return 0;
}
int PipeHandlerVimc::start(const Camera *camera)
{
LOG(VIMC, Error) << "TODO: start camera";
return 0;
}
void PipeHandlerVimc::stop(const Camera *camera)
{
LOG(VIMC, Error) << "TODO: stop camera";
}
int PipeHandlerVimc::queueRequest(const Camera *camera, Request *request)
{
return 0;
}
bool PipeHandlerVimc::match(DeviceEnumerator *enumerator)
{
DeviceMatch dm("vimc");
dm.add("Raw Capture 0");
dm.add("Raw Capture 1");
dm.add("RGB/YUV Capture");
dm.add("Sensor A");
dm.add("Sensor B");
dm.add("Debayer A");
dm.add("Debayer B");
dm.add("RGB/YUV Input");
dm.add("Scaler");
media_ = std::move(enumerator->search(dm));
if (!media_)
return false;
media_->acquire();
video_ = new V4L2Device(media_->getEntityByName("Raw Capture 1"));
if (video_->open()) {
media_->release();
return false;
}
std::vector<Stream *> streams{ &stream_ };
std::shared_ptr<Camera> camera = Camera::create(this, "VIMC Sensor B",
streams);
registerCamera(std::move(camera));
return true;
}
REGISTER_PIPELINE_HANDLER(PipeHandlerVimc);
} /* namespace libcamera */
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