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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* v4l2_subdevice.h - V4L2 Subdevice
*/
#ifndef __LIBCAMERA_V4L2_SUBDEVICE_H__
#define __LIBCAMERA_V4L2_SUBDEVICE_H__
#include <string>
#include "media_object.h"
namespace libcamera {
struct Rectangle;
struct V4L2SubdeviceFormat {
uint32_t mbus_code;
uint32_t width;
uint32_t height;
};
class V4L2Subdevice
{
public:
explicit V4L2Subdevice(const MediaEntity *entity);
V4L2Subdevice(const V4L2Subdevice &) = delete;
V4L2Subdevice &operator=(const V4L2Subdevice &) = delete;
int open();
bool isOpen() const;
void close();
std::string deviceNode() const { return entity_->deviceNode(); }
std::string deviceName() const { return entity_->name(); }
int setCrop(unsigned int pad, Rectangle *rect);
int setCompose(unsigned int pad, Rectangle *rect);
int getFormat(unsigned int pad, V4L2SubdeviceFormat *format);
int setFormat(unsigned int pad, V4L2SubdeviceFormat *format);
private:
int setSelection(unsigned int pad, unsigned int target,
Rectangle *rect);
const MediaEntity *entity_;
int fd_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_V4L2_SUBDEVICE_H__ */
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