2019-06-03 13:44:46 +08:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2005-08-17 19:17:26 +08:00
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/*
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* crc16.h - CRC-16 routine
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*
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2005-09-12 21:12:43 +08:00
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* Implements the standard CRC-16:
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2005-08-17 19:17:26 +08:00
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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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#ifndef __CRC16_H
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#define __CRC16_H
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#include <linux/types.h>
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extern u16 const crc16_table[256];
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extern u16 crc16(u16 crc, const u8 *buffer, size_t len);
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static inline u16 crc16_byte(u16 crc, const u8 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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