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70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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*==========================================================================
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*
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* crc.h
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*
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* Interface for the CRC algorithms.
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*
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*==========================================================================
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* SPDX-License-Identifier: eCos-2.0
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*==========================================================================
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*#####DESCRIPTIONBEGIN####
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*
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* Author(s): Andrew Lunn
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* Contributors: Andrew Lunn
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* Date: 2002-08-06
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* Purpose:
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* Description:
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*
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* This code is part of eCos (tm).
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*
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*####DESCRIPTIONEND####
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*
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*==========================================================================
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*/
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#ifndef _SERVICES_CRC_CRC_H_
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#define _SERVICES_CRC_CRC_H_
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#include <linux/types.h>
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#ifndef __externC
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# ifdef __cplusplus
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# define __externC extern "C"
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# else
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# define __externC extern
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# endif
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#endif
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/* Compute a CRC, using the POSIX 1003 definition */
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extern uint32_t
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cyg_posix_crc32(unsigned char *s, int len);
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/* Gary S. Brown's 32 bit CRC */
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extern uint32_t
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cyg_crc32(unsigned char *s, int len);
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/* Gary S. Brown's 32 bit CRC, but accumulate the result from a */
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/* previous CRC calculation */
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extern uint32_t
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cyg_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
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/* Ethernet FCS Algorithm */
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extern uint32_t
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cyg_ether_crc32(unsigned char *s, int len);
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/* Ethernet FCS algorithm, but accumulate the result from a previous */
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/* CRC calculation. */
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extern uint32_t
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cyg_ether_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
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/* 16 bit CRC with polynomial x^16+x^12+x^5+1 */
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extern uint16_t cyg_crc16(unsigned char *s, int len);
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#endif /* _SERVICES_CRC_CRC_H_ */
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