/**
 * This software is subject to the ANT+ Shared Source License
 * www.thisisant.com/swlicenses
 * Copyright (c) Dynastream Innovations, Inc. 2012
 * All rights reserved.
 * 
 * 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 Dynastream nor the names of its
 *    contributors may be used to endorse or promote products
 *    derived from this software without specific prior
 *    written permission.
 * 
 * The following actions are prohibited:
 * 1) Redistribution of source code containing the ANT+ Network
 *    Key. The ANT+ Network Key is available to ANT+ Adopters.
 *    Please refer to http://thisisant.com to become an ANT+
 *    Adopter and access the key.
 * 
 * 2) Reverse engineering, decompilation, and/or disassembly of
 *    software provided in binary form under this license.
 * 
 * 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 HEREBY
 * 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; DAMAGE TO ANY DEVICE, 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. SOME STATES DO NOT ALLOW
 * THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
 * ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
 * 
 */

/** @file
 * @brief The CRC-16 interface.
 * This file is based on implementation originally made by Dynastream Innovations Inc. - August 2012
 * @defgroup ant_fs_client_main ANT-FS client device simulator
 * @{
 * @ingroup ant_fs
 *
 * @brief The ANT-FS client device simulator.
 *
 */

#ifndef CRC_H__
#define CRC_H__

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/**@brief Function for calculating CRC-16 in blocks.
 *
 * Feed each consecutive data block into this function, along with the current value of current_crc
 * as returned by the previous call of this function. The first call of this function should pass
 * the initial value (usually 0) of the crc in current_crc.

 * @param[in] current_crc The current calculated CRC-16 value.
 * @param[in] p_data      The input data block for computation.
 * @param[in] size        The size of the input data block in bytes.
 *
 * @return The updated CRC-16 value, based on the input supplied.
 */
uint16_t crc_crc16_update(uint16_t current_crc, const volatile void * p_data, uint32_t size);


#ifdef __cplusplus
}
#endif

#endif // CRC_H__

/**
 *@}
 **/
