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/* crc16.h */

/* CCITT 16-bit CRC table and calculation macro */

/* $Id: crc16.h,v 1.1.1.1 2018/04/24 16:41:22 root Exp $ */

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#ifndef _CRC16_H_
#define _CRC16_H_

#ifdef __cplusplus
extern "C" {
#endif

extern unsigned short crc16tbl[];

unsigned short crc16(char *data, unsigned long len);

#ifdef __cplusplus
}
#endif

#define ucrc16(ch,crc) (crc16tbl[((crc>>8)&0xff)^(unsigned char)ch]^(crc << 8))

#endif	/* Don't add anything after this line */

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