1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
*==========================================================================
*
* 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_ */
|
