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1 office 1 /*
2  
3 Broadcom Sonics Silicon Backplane bus SPROM data modification tool
4  
5 Copyright (c) 2006-2007 Michael Buesch <m@bues.ch>
6  
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11  
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16  
17 You should have received a copy of the GNU General Public License
18 along with this program; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
21  
22 */
23  
24 #include "utils.h"
25 #include "ssb_sprom.h"
26  
27 #include <string.h>
28 #include <stdlib.h>
29 #include <stdio.h>
30 #include <stdarg.h>
31  
32  
33 int prinfo(const char *fmt, ...)
34 {
35 int ret;
36 va_list va;
37  
38 if (!cmdargs.verbose)
39 return 0;
40  
41 va_start(va, fmt);
42 ret = vfprintf(stdout, fmt, va);
43 va_end(va);
44  
45 return ret;
46 }
47  
48 int prerror(const char *fmt, ...)
49 {
50 int ret;
51 va_list va;
52  
53 va_start(va, fmt);
54 ret = vfprintf(stderr, fmt, va);
55 va_end(va);
56  
57 return ret;
58 }
59  
60 int prdata(const char *fmt, ...)
61 {
62 int ret;
63 va_list va;
64  
65 va_start(va, fmt);
66 ret = vfprintf(stdout, fmt, va);
67 va_end(va);
68  
69 return ret;
70 }
71  
72 void internal_error(const char *message)
73 {
74 prerror("Internal programming error: %s\n", message);
75 exit(1);
76 }
77  
78 static void oom(void)
79 {
80 prerror("ERROR: Out of memory!\n"
81 "Virtual memory exhausted. "
82 "Please close some applications, "
83 "add more RAM or SWAP space.\n");
84 exit(1);
85 }
86  
87 void * malloce(size_t size)
88 {
89 void *ret;
90  
91 ret = malloc(size);
92 if (!ret)
93 oom();
94  
95 return ret;
96 }
97  
98 void * realloce(void *ptr, size_t newsize)
99 {
100 void *ret;
101  
102 ret = realloc(ptr, newsize);
103 if (!ret)
104 oom();
105  
106 return ret;
107 }
108  
109 uint8_t crc8(uint8_t crc, uint8_t data)
110 {
111 static const uint8_t t[] = {
112 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
113 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
114 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
115 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
116 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
117 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
118 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
119 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
120 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
121 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
122 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
123 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
124 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
125 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
126 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
127 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
128 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
129 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
130 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
131 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
132 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
133 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
134 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
135 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
136 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
137 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
138 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
139 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
140 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
141 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
142 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
143 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
144 };
145 return t[crc ^ data];
146 }