crc.h

来自「sparc硬件平台上的红外协议」· C头文件 代码 · 共 31 行

/*********************************************************************
*                
* Filename:      crc.h
* Version:       
* Description:   CRC routines
* Status:        Experimental.
* Author:        Dag Brattli <[e-mail]>
* Created at:    Mon Aug  4 20:40:53 1997
* Modified at:   Sun May  2 20:25:23 1999
* Modified by:   Dag Brattli <[e-mail]>
* 
********************************************************************/

#ifndef IRDA_CRC_H
#define IRDA_CRC_H

#include "types.h"
#include "crc-ccitt.h"

#define INIT_FCS  0xffff   /* Initial FCS value */
#define GOOD_FCS  0xf0b8   /* Good final FCS value */

/* Recompute the FCS with one more character appended. */
#define irda_fcs(fcs, c) crc_ccitt_byte(fcs, c)

/* Recompute the FCS with len bytes appended. */
#define irda_calc_crc16(fcs, buf, len) crc_ccitt(fcs, buf, len)


#endif