diff options
Diffstat (limited to 'include/net/irda/crc.h')
-rw-r--r-- | include/net/irda/crc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/net/irda/crc.h b/include/net/irda/crc.h new file mode 100644 index 000000000000..f202296df9bb --- /dev/null +++ b/include/net/irda/crc.h | |||
@@ -0,0 +1,29 @@ | |||
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 | ||