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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* imgu.h - Intel IPU3 ImgU
*/
#ifndef __LIBCAMERA_PIPELINE_IPU3_IMGU_H__
#define __LIBCAMERA_PIPELINE_IPU3_IMGU_H__
#include <memory>
#include <string>
#include "libcamera/internal/v4l2_subdevice.h"
#include "libcamera/internal/v4l2_videodevice.h"
namespace libcamera {
class FrameBuffer;
class MediaDevice;
class Size;
struct StreamConfiguration;
class ImgUDevice
{
public:
struct PipeConfig {
float bds_sf;
Size iif;
Size bds;
Size gdc;
bool isNull() const
{
return iif.isNull() || bds.isNull() || gdc.isNull();
}
};
struct Pipe {
Size input;
Size main;
Size viewfinder;
};
int init(MediaDevice *media, unsigned int index);
PipeConfig calculatePipeConfig(Pipe *pipe);
int configure(const PipeConfig &pipeConfig, V4L2DeviceFormat *inputFormat);
int configureOutput(const StreamConfiguration &cfg,
V4L2DeviceFormat *outputFormat)
{
return configureVideoDevice(output_.get(), PAD_OUTPUT, cfg,
outputFormat);
}
int configureViewfinder(const StreamConfiguration &cfg,
V4L2DeviceFormat *outputFormat)
{
return configureVideoDevice(viewfinder_.get(), PAD_VF, cfg,
outputFormat);
}
int allocateBuffers(unsigned int bufferCount);
void freeBuffers();
int start();
int stop();
int enableLinks(bool enable);
std::unique_ptr<V4L2Subdevice> imgu_;
std::unique_ptr<V4L2VideoDevice> input_;
std::unique_ptr<V4L2VideoDevice> param_;
std::unique_ptr<V4L2VideoDevice> output_;
std::unique_ptr<V4L2VideoDevice> viewfinder_;
std::unique_ptr<V4L2VideoDevice> stat_;
private:
static constexpr unsigned int PAD_INPUT = 0;
static constexpr unsigned int PAD_PARAM = 1;
static constexpr unsigned int PAD_OUTPUT = 2;
static constexpr unsigned int PAD_VF = 3;
static constexpr unsigned int PAD_STAT = 4;
int linkSetup(const std::string &source, unsigned int sourcePad,
const std::string &sink, unsigned int sinkPad,
bool enable);
int configureVideoDevice(V4L2VideoDevice *dev, unsigned int pad,
const StreamConfiguration &cfg,
V4L2DeviceFormat *outputFormat);
std::string name_;
MediaDevice *media_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_PIPELINE_IPU3_IMGU_H__ */
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