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f591988f32
Co-authored-by: Travis Bottalico <travis@modalai.com> Co-authored-by: akushley <akushley>
66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
/****************************************************************************
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* Copyright (c) 2017 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name The Linux Foundation nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY
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* THIS LICENSE.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* In addition Supplemental Terms apply. See the SUPPLEMENTAL file.
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*
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****************************************************************************/
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/*
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* This file contains function prototypes for crc16 computations using polynomial 0x8005
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*/
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#ifndef CRC16_H_
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#define CRC16_H_
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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// Returns the seed of crc output, which should be used when computing crc16 of a byte sequence
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uint16_t crc16_init(void);
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// Process one byte by providing crc16 from previous step and new byte to consume.
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// Output is the new crc16 value
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uint16_t crc16_byte(uint16_t prev_crc, const uint8_t new_byte);
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// Process an array of bytes by providing crc16 from previous step (or seed), array of bytes and its length
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// Output is the new crc16 value
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uint16_t crc16(uint16_t prev_crc, uint8_t const *input_buffer, uint16_t input_length);
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#ifdef __cplusplus
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}
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#endif
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#endif //CRC16_H_
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