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
30