blob: 0e5241768dec2064cd95ef63827da977ed5ec194 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/*
* This was copied from the linux kernel and adjusted for our types.
*/
/*
* crc16.h - CRC-16 routine
*
* Implements the standard CRC-16:
* Width 16
* Poly 0x8005 (x^16 + x^15 + x^2 + 1)
* Init 0
*
* Copyright (c) 2005 Ben Gardner <bgardner@wabtec.com>
*
* This source code is licensed under the GNU General Public License,
* Version 2. See the file COPYING for more details.
*/
#ifndef __CRC16_H
#define __CRC16_H
#include <stdint.h>
#include <sys/types.h>
extern uint16_t const osmo_crc16_table[256];
extern uint16_t osmo_crc16(uint16_t crc, const uint8_t *buffer, size_t len);
static inline uint16_t osmo_crc16_byte(uint16_t crc, const uint8_t data)
{
return (crc >> 8) ^ osmo_crc16_table[(crc ^ data) & 0xff];
}
#endif /* __CRC16_H */
|
