FreeCalypso > hg > freecalypso-reveng

comparison miscprog/calextract.c @ 180:25b54c5ad6c2

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calextract tool written, works
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sat, 12 Jul 2014 00:05:22 +0000
parents
children c38075b8a625
comparison
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179:d0e8cdb82117 180:25b54c5ad6c2
1 /*
2 * GSM firmwares constructed per TI's canon contain several hard-coded
3 * T_RF_BAND structures, one per band, emitted literally in the .const
4 * section as they are constant initialized data, i.e.,
5 * const T_RF_BAND rf_XXX = { blah }. This utility extracts one of these
6 * structures from a binary file (hex offset must be given) and parses it
7 * into a C form suitable for placement in l1_rf12.c in the FreeCalypso
8 * gsm-fw source.
9 */
10
11 #include <stdio.h>
12 #include <stdlib.h>
13
14 char *binfilename;
15 FILE *binf;
16 u_long start_offset;
17
18 getbyte()
19 {
20 int c;
21
22 c = getc(binf);
23 if (c < 0) {
24 fprintf(stderr, "error or EOF reading from %s\n", binfilename);
25 exit(1);
26 }
27 return(c);
28 }
29
30 get_u16()
31 {
32 int lo, hi;
33
34 lo = getbyte();
35 hi = getbyte();
36 return((hi << 8) | lo);
37 }
38
39 get_s16()
40 {
41 int i;
42
43 i = get_u16();
44 if (i >= 32768)
45 i -= 65536;
46 return(i);
47 }
48
49 do_rx_cal_params()
50 {
51 int i;
52
53 puts(" { /* T_RX_CAL_PARAMS */");
54 for (i = 0; i < 4; i++)
55 printf("%10d,\n", get_u16());
56 puts(" },");
57 }
58
59 do_rx_agc_bands()
60 {
61 int i, u, s;
62
63 puts(" { /* T_RF_AGC_BANDs */");
64 for (i = 0; i < 10; i++) {
65 u = get_u16();
66 s = get_s16();
67 printf(" {%5d,%6d},\n", u, s);
68 }
69 puts(" },");
70 }
71
72 do_rx_temp_comp()
73 {
74 int i, s1, s2;
75
76 puts(" { /* Rx temperature compensation */");
77 for (i = 0; i < 11; i++) {
78 s1 = get_s16();
79 s2 = get_s16();
80 printf(" {%6d,%6d},\n", s1, s2);
81 }
82 puts(" },");
83 }
84
85 do_rx()
86 {
87 puts(" { /* Rx structure */");
88 do_rx_cal_params();
89 do_rx_agc_bands();
90 do_rx_temp_comp();
91 puts(" },");
92 }
93
94 do_tx_levels()
95 {
96 int i, u, b1, b2;
97
98 puts(" { /* levels */");
99 for (i = 0; i < 32; i++) {
100 u = get_u16();
101 b1 = getbyte();
102 b2 = getbyte();
103 printf(" {%5d,%3d,%3d}, /* %d */\n", u, b1, b2, i);
104 }
105 puts(" },");
106 }
107
108 do_tx_calchan()
109 {
110 int i, j, u, s;
111
112 puts(" { /* channel calibration tables */");
113 for (i = 0; i < 4; i++) {
114 printf(" { /* calibration table %d */\n", i);
115 for (j = 0; j < 8; j++) {
116 u = get_u16();
117 s = get_s16();
118 printf("\t{%5d,%6d},\n", u, s);
119 }
120 puts(" },");
121 }
122 puts(" },");
123 }
124
125 do_ramp_16bytes()
126 {
127 int i, b;
128
129 putchar('\t');
130 putchar('{');
131 for (i = 0; i < 16; i++) {
132 b = getbyte();
133 printf("%3d%c", b, i == 15 ? '}' : ',');
134 }
135 putchar(',');
136 putchar('\n');
137 }
138
139 do_tx_ramps()
140 {
141 int i;
142
143 puts(" { /* ramps */");
144 for (i = 0; i < 16; i++) {
145 printf(" { /* profile %d */\n", i);
146 puts("\t/* ramp-up */");
147 do_ramp_16bytes();
148 puts("\t/* ramp-down */");
149 do_ramp_16bytes();
150 puts(" },");
151 }
152 puts(" },");
153 }
154
155 do_tx_temp_comp()
156 {
157 int i, j, s[4];
158
159 puts(" { /* Tx temperature compensation */");
160 for (i = 0; i < 5; i++) {
161 for (j = 0; j < 4; j++)
162 s[j] = get_s16();
163 printf(" {%6d,%6d,%6d,%6d},\n", s[0], s[1], s[2], s[3]);
164 }
165 puts(" },");
166 }
167
168 do_tx()
169 {
170 puts(" { /* Tx structure */");
171 do_tx_levels();
172 do_tx_calchan();
173 do_tx_ramps();
174 do_tx_temp_comp();
175 puts(" },");
176 }
177
178 main(argc, argv)
179 char **argv;
180 {
181 if (argc != 3) {
182 fprintf(stderr, "usage: %s binfile hex-offset\n", argv[0]);
183 exit(1);
184 }
185 binfilename = argv[1];
186 start_offset = strtoul(argv[2], 0, 16);
187 binf = fopen(binfilename, "r");
188 if (!binf) {
189 perror(binfilename);
190 exit(1);
191 }
192 fseek(binf, start_offset, SEEK_SET);
193 puts("const T_RF_BAND rf_XXX = {");
194 do_rx();
195 do_tx();
196 printf(" %d\n}\n", getbyte());
197 exit(0);
198 }