text: /*
   * Copyright (c) 2015-2017, Arm Limited and affiliates.
   * SPDX-License-Identifier: Apache-2.0
   *
   * 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.
   */
  #ifndef _NS_CRC_H_
  #define _NS_CRC_H_
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include <stdint.h>
  
  
  /// @todo documentation
  
  /** same as crc16_ibm */
  uint16_t crc16_ansi(uint8_t *message, int nBytes);
  uint16_t crc16_ccitt(uint8_t *message, int nBytes);
  
  /**
   *  @param data         data which crc will be calculate
   *  @param data_length  Lenght of data pointer
   *  @param polynomial   Polynomial which will be used to calculate CRC, POLYNOMIAL_CRC15_CCIT, POLYNOMIAL_CRC15_ANSI
   *  @return Calculated 16bit CRC value
   */
  uint16_t crc16_calc(uint8_t *data, uint16_t data_length, uint16_t polynomial);
  
  #ifdef __cplusplus
  }
  #endif
  #endif /* _NS_CRC_H_ */
  