Nordic stack and drivers for the mbed BLE API
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/libraries/crc16/crc16.h
- Committer:
- amithy
- Date:
- 2017-11-09
- Revision:
- 639:4794dfdc59c0
- Parent:
- 638:c90ae1400bf2
File content as of revision 639:4794dfdc59c0:
/* * Copyright (c) Nordic Semiconductor ASA * 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 Nordic Semiconductor ASA nor the names of other * contributors to this software 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. * */ /** @file * * @defgroup crc_compute CRC compute * @{ * @ingroup hci_transport * * @brief This module implements the CRC-16 calculation in the blocks. */ #ifndef CRC16_H__ #define CRC16_H__ #include <stdint.h> /**@brief Function for calculating CRC-16 in blocks. * * Feed each consecutive data block into this function, along with the current value of p_crc as * returned by the previous call of this function. The first call of this function should pass NULL * as the initial value of the crc in p_crc. * * @param[in] p_data The input data block for computation. * @param[in] size The size of the input data block in bytes. * @param[in] p_crc The previous calculated CRC-16 value or NULL if first call. * * @return The updated CRC-16 value, based on the input supplied. */ uint16_t crc16_compute(const uint8_t * p_data, uint32_t size, const uint16_t * p_crc); #endif // CRC16_H__ /** @} */