1 /*
2  *	crc16.h - CRC-16 routine
3  *
4  * Implements the standard CRC-16:
5  *   Width 16
6  *   Poly  0x8005 (x^16 + x^15 + x^2 + 1)
7  *   Init  0
8  *
9  * Copyright (c) 2005 Ben Gardner <bgardner@wabtec.com>
10  *
11  * This source code is licensed under the GNU General Public License,
12  * Version 2. See the file COPYING for more details.
13  */
14 
15 #ifndef __CRC16_H
16 #define __CRC16_H
17 
18 #include <linux/types.h>
19 
20 extern u16 const crc16_table[256];
21 
22 extern u16 crc16(u16 crc, const u8 *buffer, size_t len);
23 
crc16_byte(u16 crc,const u8 data)24 static inline u16 crc16_byte(u16 crc, const u8 data)
25 {
26 	return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff];
27 }
28 
29 #endif /* __CRC16_H */
30