28 lines
599 B
C
28 lines
599 B
C
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/*
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* Implements the standard CRC-16:
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* Width 16
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* Poly 0x8005 (x^16 + x^15 + x^2 + 1)
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* Init 0
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*
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* Copyright (c) 2005 Ben Gardner <bgardner@wabtec.com>
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*
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* This code was taken from the linux kernel. The license is GPL Version 2.
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*/
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#ifndef __CRC16_H__
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#define __CRC16_H__
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#include <stdlib.h>
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#include <stdint.h>
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extern uint16_t const crc16_table[256];
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extern uint16_t crc16(uint16_t crc, const uint8_t *buffer, size_t len);
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static inline uint16_t crc16_byte(uint16_t crc, const uint8_t data)
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{
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return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff];
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}
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#endif /* __CRC16_H__ */
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