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28 lines
540 B
28 lines
540 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* crc16.h - CRC-16 routine |
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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 <[email protected]> |
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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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