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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * camera_proxy.cpp - Proxy to camera devices
 */

#include "camera_proxy.h"

#include <system/camera_metadata.h>

#include <libcamera/object.h>

#include "log.h"
#include "message.h"
#include "utils.h"

#include "camera_device.h"
#include "thread_rpc.h"

using namespace libcamera;

LOG_DECLARE_CATEGORY(HAL);

/*
 * \class CameraProxy
 *
 * The CameraProxy wraps a CameraDevice and implements the camera3_device_t
 * API, bridging calls received from the camera framework to the CameraDevice.
 *
 * Bridging operation calls between the framework and the CameraDevice is
 * required as the two run in two different threads and certain operations,
 * such as queueing a new capture request to the camera, shall be called in
 * the thread that dispatches events. Other operations do not require any
 * bridging and resolve to direct function calls on the CameraDevice instance
 * instead.
 */

static int hal_dev_initialize(const struct camera3_device *dev,
			      const camera3_callback_ops_t *callback_ops)
{
	if (!dev)
		return -EINVAL;

	CameraProxy *proxy = reinterpret_cast<CameraProxy *>(dev->priv);
	proxy->initialize(callback_ops);

	return 0;
}

static int hal_dev_configure_streams(const struct camera3_device *dev,
				     camera3_stream_configuration_t *stream_list)
{
	if (!dev)
		return -EINVAL;

	CameraProxy *proxy = reinterpret_cast<CameraProxy *>(dev->priv);
	return proxy->configureStreams(stream_list);
}

static const camera_metadata_t *
hal_dev_construct_default_request_settings(const struct camera3_device *dev,
					   int type)
{