| /* |
| *========================================================================== |
| * |
| * 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_ |
| |
| #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 */ |
| |
| extern uint16_t cyg_crc16(unsigned char *s, int len); |
| |
| #endif /* _SERVICES_CRC_CRC_H_ */ |