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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* rkisp1path.h - Rockchip ISP1 path helper
*/
#pragma once
#include <memory>
#include <set>
#include <vector>
#include <libcamera/base/signal.h>
#include <libcamera/base/span.h>
#include <libcamera/camera.h>
#include <libcamera/geometry.h>
#include <libcamera/pixel_format.h>
#include "libcamera/internal/media_object.h"
#include "libcamera/internal/v4l2_videodevice.h"
namespace libcamera {
class CameraSensor;
class MediaDevice;
class V4L2Subdevice;
struct StreamConfiguration;
struct V4L2SubdeviceFormat;
class RkISP1Path
{
public:
RkISP1Path(const char *name, const Span<const PixelFormat> &formats,
const Size &minResolution, const Size &maxResolution);
bool init(MediaDevice *media);
int setEnabled(bool enable) { return link_->setEnabled(enable); }
bool isEnabled() const { return link_->flags() & MEDIA_LNK_FL_ENABLED; }
StreamConfiguration generateConfiguration(const CameraSensor *sensor,
const Size &resolution,
StreamRole role);
CameraConfiguration::Status validate(const CameraSensor *sensor,
StreamConfiguration *cfg);
int configure(const StreamConfiguration &config,
const V4L2SubdeviceFormat &inputFormat);
int exportBuffers(unsigned int bufferCount,
std::vector<std::unique_ptr<FrameBuffer>> *buffers)
{
return video_->exportBuffers(bufferCount, buffers);
}
int start();
void stop();
int queueBuffer(FrameBuffer *buffer) { return video_->queueBuffer(buffer); }
Signal<FrameBuffer *> &bufferReady() { return video_->bufferReady; }
private:
void populateFormats();
static constexpr unsigned int RKISP1_BUFFER_COUNT = 4;
const char *name_;
bool running_;
const Span<const PixelFormat> formats_;
std::set<PixelFormat> streamFormats_;
Size minResolution_;
Size maxResolution_;
std::unique_ptr<V4L2Subdevice> resizer_;
std::unique_ptr<V4L2VideoDevice> video_;
MediaLink *link_;
};
class RkISP1MainPath : public RkISP1Path
{
public:
RkISP1MainPath();
};
class RkISP1SelfPath : public RkISP1Path
{
public:
RkISP1SelfPath();
};
} /* namespace libcamera */
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