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1/*********************************************************************
2 *
3 * Filename: crc.h
4 * Version:
5 * Description: CRC routines
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Mon Aug 4 20:40:53 1997
9 * Modified at: Sun May 2 20:25:23 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 ********************************************************************/
13
14#ifndef IRDA_CRC_H
15#define IRDA_CRC_H
16
17#include <linux/types.h>
18#include <linux/crc-ccitt.h>
19
20#define INIT_FCS 0xffff /* Initial FCS value */
21#define GOOD_FCS 0xf0b8 /* Good final FCS value */
22
23/* Recompute the FCS with one more character appended. */
24#define irda_fcs(fcs, c) crc_ccitt_byte(fcs, c)
25
26/* Recompute the FCS with len bytes appended. */
27#define irda_calc_crc16(fcs, buf, len) crc_ccitt(fcs, buf, len)
28
29#endif