| /* | |
| *========================================================================== | |
| * | |
| * 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_ */ |