Nordic stack and drivers for the mbed BLE API
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/libraries/crc16/crc16.h@640:c90ae1400bf2, 2016-09-14 (annotated)
- Committer:
- Vincent Coubard
- Date:
- Wed Sep 14 14:39:43 2016 +0100
- Revision:
- 640:c90ae1400bf2
Sync with bdab10dc0f90748b6989c8b577771bb403ca6bd8 from ARMmbed/mbed-os.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Vincent Coubard |
640:c90ae1400bf2 | 1 | /* |
Vincent Coubard |
640:c90ae1400bf2 | 2 | * Copyright (c) Nordic Semiconductor ASA |
Vincent Coubard |
640:c90ae1400bf2 | 3 | * All rights reserved. |
Vincent Coubard |
640:c90ae1400bf2 | 4 | * |
Vincent Coubard |
640:c90ae1400bf2 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
Vincent Coubard |
640:c90ae1400bf2 | 6 | * are permitted provided that the following conditions are met: |
Vincent Coubard |
640:c90ae1400bf2 | 7 | * |
Vincent Coubard |
640:c90ae1400bf2 | 8 | * 1. Redistributions of source code must retain the above copyright notice, this |
Vincent Coubard |
640:c90ae1400bf2 | 9 | * list of conditions and the following disclaimer. |
Vincent Coubard |
640:c90ae1400bf2 | 10 | * |
Vincent Coubard |
640:c90ae1400bf2 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, this |
Vincent Coubard |
640:c90ae1400bf2 | 12 | * list of conditions and the following disclaimer in the documentation and/or |
Vincent Coubard |
640:c90ae1400bf2 | 13 | * other materials provided with the distribution. |
Vincent Coubard |
640:c90ae1400bf2 | 14 | * |
Vincent Coubard |
640:c90ae1400bf2 | 15 | * 3. Neither the name of Nordic Semiconductor ASA nor the names of other |
Vincent Coubard |
640:c90ae1400bf2 | 16 | * contributors to this software may be used to endorse or promote products |
Vincent Coubard |
640:c90ae1400bf2 | 17 | * derived from this software without specific prior written permission. |
Vincent Coubard |
640:c90ae1400bf2 | 18 | * |
Vincent Coubard |
640:c90ae1400bf2 | 19 | * |
Vincent Coubard |
640:c90ae1400bf2 | 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
Vincent Coubard |
640:c90ae1400bf2 | 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
Vincent Coubard |
640:c90ae1400bf2 | 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
Vincent Coubard |
640:c90ae1400bf2 | 23 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
Vincent Coubard |
640:c90ae1400bf2 | 24 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
Vincent Coubard |
640:c90ae1400bf2 | 25 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
Vincent Coubard |
640:c90ae1400bf2 | 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
Vincent Coubard |
640:c90ae1400bf2 | 27 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
Vincent Coubard |
640:c90ae1400bf2 | 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
Vincent Coubard |
640:c90ae1400bf2 | 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Vincent Coubard |
640:c90ae1400bf2 | 30 | * |
Vincent Coubard |
640:c90ae1400bf2 | 31 | */ |
Vincent Coubard |
640:c90ae1400bf2 | 32 | |
Vincent Coubard |
640:c90ae1400bf2 | 33 | /** @file |
Vincent Coubard |
640:c90ae1400bf2 | 34 | * |
Vincent Coubard |
640:c90ae1400bf2 | 35 | * @defgroup crc_compute CRC compute |
Vincent Coubard |
640:c90ae1400bf2 | 36 | * @{ |
Vincent Coubard |
640:c90ae1400bf2 | 37 | * @ingroup hci_transport |
Vincent Coubard |
640:c90ae1400bf2 | 38 | * |
Vincent Coubard |
640:c90ae1400bf2 | 39 | * @brief This module implements the CRC-16 calculation in the blocks. |
Vincent Coubard |
640:c90ae1400bf2 | 40 | */ |
Vincent Coubard |
640:c90ae1400bf2 | 41 | |
Vincent Coubard |
640:c90ae1400bf2 | 42 | #ifndef CRC16_H__ |
Vincent Coubard |
640:c90ae1400bf2 | 43 | #define CRC16_H__ |
Vincent Coubard |
640:c90ae1400bf2 | 44 | |
Vincent Coubard |
640:c90ae1400bf2 | 45 | #include <stdint.h> |
Vincent Coubard |
640:c90ae1400bf2 | 46 | |
Vincent Coubard |
640:c90ae1400bf2 | 47 | /**@brief Function for calculating CRC-16 in blocks. |
Vincent Coubard |
640:c90ae1400bf2 | 48 | * |
Vincent Coubard |
640:c90ae1400bf2 | 49 | * Feed each consecutive data block into this function, along with the current value of p_crc as |
Vincent Coubard |
640:c90ae1400bf2 | 50 | * returned by the previous call of this function. The first call of this function should pass NULL |
Vincent Coubard |
640:c90ae1400bf2 | 51 | * as the initial value of the crc in p_crc. |
Vincent Coubard |
640:c90ae1400bf2 | 52 | * |
Vincent Coubard |
640:c90ae1400bf2 | 53 | * @param[in] p_data The input data block for computation. |
Vincent Coubard |
640:c90ae1400bf2 | 54 | * @param[in] size The size of the input data block in bytes. |
Vincent Coubard |
640:c90ae1400bf2 | 55 | * @param[in] p_crc The previous calculated CRC-16 value or NULL if first call. |
Vincent Coubard |
640:c90ae1400bf2 | 56 | * |
Vincent Coubard |
640:c90ae1400bf2 | 57 | * @return The updated CRC-16 value, based on the input supplied. |
Vincent Coubard |
640:c90ae1400bf2 | 58 | */ |
Vincent Coubard |
640:c90ae1400bf2 | 59 | uint16_t crc16_compute(const uint8_t * p_data, uint32_t size, const uint16_t * p_crc); |
Vincent Coubard |
640:c90ae1400bf2 | 60 | |
Vincent Coubard |
640:c90ae1400bf2 | 61 | #endif // CRC16_H__ |
Vincent Coubard |
640:c90ae1400bf2 | 62 | |
Vincent Coubard |
640:c90ae1400bf2 | 63 | /** @} */ |