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/*
*==========================================================================
*
* crc.h
*
* Interface for the CRC algorithms.
*
*==========================================================================
* SPDX-License-Identifier: eCos-2.0
*==========================================================================
*#####DESCRIPTIONBEGIN####
*
* Author(s): Andrew Lunn
* Contributors: Andrew Lunn
* Date: 2002-08-06
* Purpose:
* Description:
*
* This code is part of eCos (tm).
*
*####DESCRIPTIONEND####
*
*==========================================================================
*/
#ifndef _SERVICES_CRC_CRC_H_
#define _SERVICES_CRC_CRC_H_
#include <linux/types.h>
#ifndef __externC
# ifdef __cplusplus
# define __externC extern "C"
# else
# define __externC extern
# endif
#endif
/* Compute a CRC, using the POSIX 1003 definition */
extern uint32_t
cyg_posix_crc32(unsigned char *s, int len);
/* Gary S. Brown's 32 bit CRC */
extern uint32_t
cyg_crc32(unsigned char *s, int len);
/* Gary S. Brown's 32 bit CRC, but accumulate the result from a */
/* previous CRC calculation */
extern uint32_t
cyg_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
/* Ethernet FCS Algorithm */
extern uint32_t
cyg_ether_crc32(unsigned char *s, int len);
/* Ethernet FCS algorithm, but accumulate the result from a previous */
/* CRC calculation. */
extern uint32_t
cyg_ether_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
/* 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */
uint16_t crc16_ccitt(uint16_t crc_start, unsigned char *s, int len);
#endif /* _SERVICES_CRC_CRC_H_ */
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