camera_lens.h

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2021, Google Inc.
 *
 * A camera lens controller
 */
#pragma once

#include <memory>
#include <stdint.h>
#include <string>

#include <libcamera/base/class.h>
#include <libcamera/base/log.h>

#include <libcamera/controls.h>

namespace libcamera {

class MediaEntity;
class V4L2Subdevice;

class CameraLens : protected Loggable
{
public:
    explicit CameraLens(const MediaEntity *entity);
    ~CameraLens();

    int init();
    int setFocusPosition(int32_t position);

    const std::string &model() const { return model_; }

    const ControlInfoMap &controls() const;

protected:
    std::string logPrefix() const override;

private:
    LIBCAMERA_DISABLE_COPY_AND_MOVE(CameraLens)

    int validateLensDriver();

    const MediaEntity *entity_;
    std::unique_ptr<V4L2Subdevice> subdev_;

    std::string model_;
};

} /* namespace libcamera */