include/net/irda/crc.h

   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