/*
 * Copyright (c) 2016-2017, Pelion and affiliates.
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holder nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * \brief Nanostack lowpower instance and corresponding methods.
 */

#ifndef THREAD_THREAD_LOWPOWER_PRIVATE_API_H_
#define THREAD_THREAD_LOWPOWER_PRIVATE_API_H_

#ifdef __cplusplus
extern "C" {
#endif

#ifdef HAVE_THREAD_V2

/** \brief function to process data response received for link metrics
 *
 * \param src_address address source address of the data response message
 * \param instance_id instance_id of the interface
 * \param data_ptr response data
 * \param data_len length of the response received
 *
 */
void thread_lowpower_process_response(uint8_t *src_address, int8_t instance_id, uint8_t *data_ptr, uint16_t data_len);

/** \brief function to process data request received for link metrics.
 * Function processes only data request messages
 *
 * \param mle_msg
 *
 */
int thread_lowpower_process_request(mle_message_t *mle_msg);

/** \brief function to check if the lowpower metrics requested is ready
 *
 * \param cur protocol interface
 * \param ticks ticks for timer
 *
 */
int thread_lowpower_timer(protocol_interface_info_entry_t *cur, uint32_t ticks);

/** \brief function writes the link metrics tlv if available
 *
 * \param cur protocol interface
 * \param destination_address destination address for link metrics
 * \param ptr location to which the metrics are written
 *
 */
uint8_t *thread_lowpower_link_metrics_write(protocol_interface_info_entry_t *cur, uint8_t *destination_address, uint8_t *ptr);

/** \brief function calculates the link metrics length if metrics available
 *
 * \param cur protocol interface
 * \param destination_address destination address for link metrics
 *
 */
uint8_t thread_lowpower_link_metrics_length(protocol_interface_info_entry_t *cur, uint8_t *destination_address);

/** \brief function calculates the link metrics length if metrics available
 *
 * \param cur protocol interface
 * \param destination_address destination address for link metrics
 *
 */
void thread_lowpower_metrics_management_query_request_process(protocol_interface_info_entry_t *cur, mle_message_t *mle_msg, mle_security_header_t *security_headers, uint8_t linkMargin);

#else /* HAVE_THREAD_V2 */

#define thread_lowpower_process_request(mle_msg)
#define thread_lowpower_process_response(src_address, instance_id, data_ptr, data_len)
#define thread_lowpower_timer(cur, ticks)
#define thread_lowpower_link_metrics_write(cur, destination_address, ptr) (ptr)
#define thread_lowpower_link_metrics_length(cur, destination_address) (0)
#define thread_lowpower_metrics_management_query_request_process(cur, mle_msg, security_headers, linkMargin)

#endif /* HAVE_THREAD_V2 */


#ifdef __cplusplus
}
#endif

#endif /* THREAD_THREAD_LOWPOWER_PRIVATE_API_H_ */