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- //==========================================================================
- //
- // crc.h
- //
- // Interface for the CRC algorithms.
- //
- //==========================================================================
- //####ECOSGPLCOPYRIGHTBEGIN####
- // -------------------------------------------
- // This file is part of eCos, the Embedded Configurable Operating System.
- // Copyright (C) 2002 Andrew Lunn
- //
- // eCos is free software; you can redistribute it and/or modify it under
- // the terms of the GNU General Public License as published by the Free
- // Software Foundation; either version 2 or (at your option) any later version.
- //
- // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
- // WARRANTY; without even the implied warranty of MERCHANTABILITY or
- // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- // for more details.
- //
- // You should have received a copy of the GNU General Public License along
- // with eCos; if not, write to the Free Software Foundation, Inc.,
- // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- //
- // As a special exception, if other files instantiate templates or use macros
- // or inline functions from this file, or you compile this file and link it
- // with other works to produce a work based on this file, this file does not
- // by itself cause the resulting work to be covered by the GNU General Public
- // License. However the source code for this file must still be made available
- // in accordance with section (3) of the GNU General Public License.
- //
- // This exception does not invalidate any other reasons why a work based on
- // this file might be covered by the GNU General Public License.
- //
- // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
- // at http://sources.redhat.com/ecos/ecos-license/
- // -------------------------------------------
- //####ECOSGPLCOPYRIGHTEND####
- //==========================================================================
- //#####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_
- #if 0
- #include <cyg/infra/cyg_type.h>
- #else
- #include <stdint.h>
- typedef uint32_t cyg_uint32;
- typedef uint16_t cyg_uint16;
- #endif
- #ifndef __externC
- # ifdef __cplusplus
- # define __externC extern "C"
- # else
- # define __externC extern
- # endif
- #endif
- // Compute a CRC, using the POSIX 1003 definition
- __externC cyg_uint32
- cyg_posix_crc32(unsigned char *s, int len);
- // Gary S. Brown's 32 bit CRC
- __externC cyg_uint32
- cyg_crc32(unsigned char *s, int len);
- // Gary S. Brown's 32 bit CRC, but accumulate the result from a
- // previous CRC calculation
- __externC cyg_uint32
- cyg_crc32_accumulate(cyg_uint32 crc, unsigned char *s, int len);
- // Ethernet FCS Algorithm
- __externC cyg_uint32
- cyg_ether_crc32(unsigned char *s, int len);
- // Ethernet FCS algorithm, but accumulate the result from a previous
- // CRC calculation.
- __externC cyg_uint32
- cyg_ether_crc32_accumulate(cyg_uint32 crc, unsigned char *s, int len);
- // 16 bit CRC with polynomial x^16+x^12+x^5+1
- __externC cyg_uint16
- cyg_crc16(unsigned char *s, int len);
- #endif // _SERVICES_CRC_CRC_H_
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