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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 <string>
#include "libcamera/internal/v4l2_subdevice.h"
#include "libcamera/internal/v4l2_videodevice.h"
namespace libcamera {
class FrameBuffer;
class MediaDevice;
struct Size;
struct StreamConfiguration;
class ImgUDevice
{
public:
static constexpr unsigned int PAD_INPUT = 0;
static constexpr unsigned int PAD_OUTPUT = 2;
static constexpr unsigned int PAD_VF = 3;
static constexpr unsigned int PAD_STAT = 4;
/* ImgU output descriptor: group data specific to an ImgU output. */
struct ImgUOutput {
V4L2VideoDevice *dev;
unsigned int pad;
std::string name;
};
ImgUDevice()
: imgu_(nullptr), input_(nullptr)
{
output_.dev = nullptr;
viewfinder_.dev = nullptr;
stat_.dev = nullptr;
}
~ImgUDevice()
{
delete imgu_;
delete input_;
delete output_.dev;
delete viewfinder_.dev;
delete stat_.dev;
}
int init(MediaDevice *media, unsigned int index);
int configureInput(const Size &size, V4L2DeviceFormat *inputFormat);
int configureOutput(ImgUOutput *output, const StreamConfiguration &cfg,
V4L2DeviceFormat *outputFormat);
int allocateBuffers(unsigned int bufferCount);
void freeBuffers();
int start();
int stop();
int linkSetup(const std::string &source, unsigned int sourcePad,
const std::string &sink, unsigned int sinkPad,
bool enable);
int enableLinks(bool enable);
unsigned int index_;
std::string name_;
MediaDevice *media_;
V4L2Subdevice *imgu_;
V4L2VideoDevice *input_;
ImgUOutput output_;
ImgUOutput viewfinder_;
ImgUOutput stat_;
/* \todo Add param video device for 3A tuning */
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_PIPELINE_IPU3_IMGU_H__ */
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