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/*
 * HAL (Hardware Abstract Layer) ZIGBEE API
 *
 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include <stdint.h>
#include <dlfcn.h>
#include <dlog.h>

#include <hal/hal-common.h>

#include "hal-zigbee-interface.h"
#include "hal-zigbee.h"
#include "common.h"

#ifndef EXPORT
#define EXPORT __attribute__ ((visibility("default")))
#endif

#define ARRAY_SIZE(name)	(sizeof(name)/sizeof(name[0]))

static hal_backend_zigbee_funcs *g_zigbee_funcs = NULL;

EXPORT
int hal_zigbee_get_backend(void)
{
	int ret;

	if (g_zigbee_funcs)
		return 0;

	g_zigbee_funcs = calloc(1, sizeof(hal_backend_zigbee_funcs));
	if (!g_zigbee_funcs)
		return -ENOMEM;

	ret = hal_common_get_backend(HAL_MODULE_ZIGBEE, (void **)&g_zigbee_funcs);
	if (ret < 0) {
		free(g_zigbee_funcs);
		g_zigbee_funcs = NULL;
		return -ENOTSUP;
	}

	return 0;
}

EXPORT
int hal_zigbee_put_backend(void)
{
	if (!g_zigbee_funcs)
		return -EINVAL;

	hal_common_put_backend(HAL_MODULE_ZIGBEE, (void *)g_zigbee_funcs);

	free(g_zigbee_funcs);
	g_zigbee_funcs = NULL;

	return 0;
}

EXPORT
int hal_zigbee_get_descriptor(void *descriptor)
{
	if (!g_zigbee_funcs)
		return -ENOTSUP;
	return g_zigbee_funcs->get_descriptor(descriptor);
}