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fe57bb19 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <stdio.h> | |
89cdab78 | 25 | #include <stdint.h> |
fe57bb19 WD |
26 | #include <stdlib.h> |
27 | #include <unistd.h> | |
28 | ||
dc17fb6d WD |
29 | #ifndef __ASSEMBLY__ |
30 | #define __ASSEMBLY__ /* Dirty trick to get only #defines */ | |
31 | #endif | |
32 | #define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */ | |
fe57bb19 WD |
33 | #include <config.h> |
34 | #undef __ASSEMBLY__ | |
35 | ||
36 | #if defined(CFG_ENV_IS_IN_FLASH) | |
37 | # ifndef CFG_ENV_ADDR | |
38 | # define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) | |
39 | # endif | |
40 | # ifndef CFG_ENV_OFFSET | |
41 | # define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE) | |
42 | # endif | |
43d9616c WD |
43 | # if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND) |
44 | # define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND) | |
45 | # endif | |
fe57bb19 WD |
46 | # ifndef CFG_ENV_SIZE |
47 | # define CFG_ENV_SIZE CFG_ENV_SECT_SIZE | |
48 | # endif | |
43d9616c WD |
49 | # if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND) |
50 | # define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE | |
51 | # endif | |
52 | # if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \ | |
53 | ((CFG_ENV_ADDR + CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) | |
54 | # define ENV_IS_EMBEDDED 1 | |
55 | # endif | |
56 | # if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND) | |
57 | # define CFG_REDUNDAND_ENVIRONMENT 1 | |
fe57bb19 WD |
58 | # endif |
59 | #endif /* CFG_ENV_IS_IN_FLASH */ | |
60 | ||
43d9616c | 61 | #ifdef CFG_REDUNDAND_ENVIRONMENT |
89cdab78 | 62 | # define ENV_HEADER_SIZE (sizeof(uint32_t) + 1) |
43d9616c | 63 | #else |
89cdab78 | 64 | # define ENV_HEADER_SIZE (sizeof(uint32_t)) |
43d9616c WD |
65 | #endif |
66 | ||
67 | #define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE) | |
68 | ||
69 | ||
89cdab78 | 70 | extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int); |
fe57bb19 WD |
71 | |
72 | #ifdef ENV_IS_EMBEDDED | |
73 | extern unsigned int env_size; | |
74 | extern unsigned char environment; | |
75 | #endif /* ENV_IS_EMBEDDED */ | |
76 | ||
77 | int main (int argc, char **argv) | |
78 | { | |
79 | #ifdef ENV_IS_EMBEDDED | |
89cdab78 | 80 | uint32_t crc; |
dc17fb6d WD |
81 | unsigned char *envptr = &environment, |
82 | *dataptr = envptr + ENV_HEADER_SIZE; | |
83 | unsigned int datasize = ENV_SIZE; | |
fe57bb19 | 84 | |
dc17fb6d | 85 | crc = crc32 (0, dataptr, datasize); |
fe57bb19 | 86 | |
dc17fb6d WD |
87 | /* Check if verbose mode is activated passing a parameter to the program */ |
88 | if (argc > 1) { | |
89 | printf ("CRC32 from offset %08X to %08X of environment = %08X\n", | |
90 | (unsigned int) (dataptr - envptr), | |
91 | (unsigned int) (dataptr - envptr) + datasize, | |
92 | crc); | |
93 | } else { | |
94 | printf ("0x%08X\n", crc); | |
95 | } | |
fe57bb19 | 96 | #else |
dc17fb6d | 97 | printf ("0\n"); |
fe57bb19 | 98 | #endif |
dc17fb6d | 99 | return EXIT_SUCCESS; |
fe57bb19 | 100 | } |