Commit | Line | Data |
---|---|---|
2db3a766 UB |
1 | /* LIBFTDI EEPROM access example |
2 | ||
3 | This program is distributed under the GPL, version 2 | |
4 | */ | |
5 | ||
6 | #include <stdio.h> | |
7 | #include <stdlib.h> | |
8 | #include <string.h> | |
9 | #include <ctype.h> | |
10 | #include <unistd.h> | |
11 | #include <getopt.h> | |
12 | #include <ftdi.h> | |
13 | ||
8ee8775e UB |
14 | int read_decode_eeprom(struct ftdi_context *ftdi) |
15 | { | |
16 | int i, j, f; | |
17 | int value; | |
18 | int size; | |
19 | unsigned char buf[256]; | |
20 | ||
21 | f = ftdi_read_eeprom(ftdi); | |
22 | if (f < 0) | |
23 | { | |
24 | fprintf(stderr, "ftdi_read_eeprom: %d (%s)\n", | |
25 | f, ftdi_get_error_string(ftdi)); | |
26 | return -1; | |
27 | } | |
28 | ||
29 | ||
30 | ftdi_get_eeprom_value(ftdi, CHIP_SIZE, & value); | |
31 | if (value <0) | |
32 | { | |
2e4e22c4 UB |
33 | fprintf(stderr, "No EEPROM found or EEPROM empty\n"); |
34 | fprintf(stderr, "On empty EEPROM, use -w option to write default values\n"); | |
8ee8775e UB |
35 | return -1; |
36 | } | |
37 | fprintf(stderr, "Chip type %d ftdi_eeprom_size: %d\n", ftdi->type, value); | |
38 | if (ftdi->type == TYPE_R) | |
39 | size = 0xa0; | |
40 | else | |
41 | size = value; | |
42 | ftdi_get_eeprom_buf(ftdi, buf, size); | |
43 | for (i=0; i < size; i += 16) | |
44 | { | |
45 | fprintf(stdout,"0x%03x:", i); | |
46 | ||
47 | for (j = 0; j< 8; j++) | |
48 | fprintf(stdout," %02x", buf[i+j]); | |
49 | fprintf(stdout," "); | |
50 | for (; j< 16; j++) | |
51 | fprintf(stdout," %02x", buf[i+j]); | |
52 | fprintf(stdout," "); | |
53 | for (j = 0; j< 8; j++) | |
54 | fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.'); | |
55 | fprintf(stdout," "); | |
56 | for (; j< 16; j++) | |
57 | fprintf(stdout,"%c", isprint(buf[i+j])?buf[i+j]:'.'); | |
58 | fprintf(stdout,"\n"); | |
59 | } | |
60 | ||
61 | f = ftdi_eeprom_decode(ftdi, 1); | |
62 | if (f < 0) | |
63 | { | |
64 | fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n", | |
65 | f, ftdi_get_error_string(ftdi)); | |
66 | return -1; | |
67 | } | |
68 | return 0; | |
69 | } | |
70 | ||
2db3a766 UB |
71 | int main(int argc, char **argv) |
72 | { | |
f38b0866 | 73 | struct ftdi_context *ftdi; |
8ee8775e UB |
74 | int f, i; |
75 | int vid = 0; | |
76 | int pid = 0; | |
2db3a766 UB |
77 | char const *desc = 0; |
78 | char const *serial = 0; | |
79 | int erase = 0; | |
4fb2ebbb | 80 | int use_defaults = 0; |
2db3a766 | 81 | int large_chip = 0; |
0091182e | 82 | int do_write = 0; |
bd4a9e38 | 83 | int retval = 0; |
8ee8775e | 84 | int value; |
2db3a766 | 85 | |
f38b0866 UB |
86 | if ((ftdi = ftdi_new()) == 0) |
87 | { | |
05c2e40a TJ |
88 | fprintf(stderr, "Failed to allocate ftdi structure :%s \n", |
89 | ftdi_get_error_string(ftdi)); | |
f38b0866 UB |
90 | return EXIT_FAILURE; |
91 | } | |
92 | ||
0091182e | 93 | while ((i = getopt(argc, argv, "d::ev:p:l:P:S:w")) != -1) |
2db3a766 UB |
94 | { |
95 | switch (i) | |
96 | { | |
05c2e40a TJ |
97 | case 'd': |
98 | use_defaults = 1; | |
99 | if (optarg) | |
100 | large_chip = 0x66; | |
101 | break; | |
102 | case 'e': | |
103 | erase = 1; | |
104 | break; | |
105 | case 'v': | |
106 | vid = strtoul(optarg, NULL, 0); | |
107 | break; | |
108 | case 'p': | |
109 | pid = strtoul(optarg, NULL, 0); | |
110 | break; | |
111 | case 'P': | |
2db3a766 | 112 | desc = optarg; |
05c2e40a TJ |
113 | break; |
114 | case 'S': | |
115 | serial = optarg; | |
116 | break; | |
117 | case 'w': | |
118 | do_write = 1; | |
119 | break; | |
120 | default: | |
121 | fprintf(stderr, "usage: %s [options]\n", *argv); | |
122 | fprintf(stderr, "\t-d[num] Work with default valuesfor 128 Byte " | |
82e0fc5a | 123 | "EEPROM or for 256 Byte EEPROM if some [num] is given\n"); |
05c2e40a TJ |
124 | fprintf(stderr, "\t-w write\n"); |
125 | fprintf(stderr, "\t-e erase\n"); | |
126 | fprintf(stderr, "\t-v verbose decoding\n"); | |
127 | fprintf(stderr, "\t-p <number> Search for device with PID == number\n"); | |
128 | fprintf(stderr, "\t-v <number> Search for device with VID == number\n"); | |
129 | fprintf(stderr, "\t-P <string? Search for device with given " | |
2db3a766 | 130 | "product description\n"); |
05c2e40a | 131 | fprintf(stderr, "\t-S <string? Search for device with given " |
2db3a766 | 132 | "serial number\n"); |
bd4a9e38 UB |
133 | retval = -1; |
134 | goto done; | |
2db3a766 UB |
135 | } |
136 | } | |
137 | ||
2db3a766 | 138 | // Select first interface |
f38b0866 | 139 | ftdi_set_interface(ftdi, INTERFACE_ANY); |
2db3a766 | 140 | |
8ee8775e | 141 | if (!vid && !pid && desc == NULL && serial == NULL) |
2db3a766 | 142 | { |
8ee8775e UB |
143 | struct ftdi_device_list *devlist, *curdev; |
144 | int res; | |
145 | if ((res = ftdi_usb_find_all(ftdi, &devlist, 0, 0)) < 0) | |
146 | { | |
147 | fprintf(stderr, "No FTDI with default VID/PID found\n"); | |
148 | retval = EXIT_FAILURE; | |
149 | goto do_deinit; | |
150 | } | |
151 | if (res > 1) | |
152 | { | |
153 | int i = 1; | |
4d12b998 | 154 | fprintf(stderr, "%d FTDI devices found: Only Readout on EEPROM done. \n",res); |
8ee8775e UB |
155 | fprintf(stderr, "Use VID/PID/desc/serial to select device\n"); |
156 | for (curdev = devlist; curdev != NULL; curdev= curdev->next, i++) | |
157 | { | |
158 | f = ftdi_usb_open_dev(ftdi, curdev->dev); | |
159 | if (f<0) | |
160 | { | |
4d12b998 | 161 | fprintf(stderr, "Unable to open device %d: (%s)\n", |
8ee8775e UB |
162 | i, ftdi_get_error_string(ftdi)); |
163 | continue; | |
164 | } | |
165 | fprintf(stderr, "Decoded values of device %d:\n", i); | |
166 | read_decode_eeprom(ftdi); | |
167 | ftdi_usb_close(ftdi); | |
168 | } | |
169 | ftdi_list_free(&devlist); | |
170 | retval = EXIT_SUCCESS; | |
171 | goto do_deinit; | |
172 | } | |
95f29fc4 UB |
173 | else if (res == 1) |
174 | { | |
175 | f = ftdi_usb_open_dev(ftdi, devlist[0].dev); | |
176 | if (f<0) | |
177 | { | |
4d12b998 | 178 | fprintf(stderr, "Unable to open device %d: (%s)\n", |
95f29fc4 UB |
179 | i, ftdi_get_error_string(ftdi)); |
180 | } | |
181 | } | |
182 | else | |
183 | { | |
184 | fprintf(stderr, "No devices found\n"); | |
185 | f = 0; | |
186 | } | |
8ee8775e UB |
187 | ftdi_list_free(&devlist); |
188 | } | |
189 | else | |
190 | { | |
191 | // Open device | |
192 | f = ftdi_usb_open_desc(ftdi, vid, pid, desc, serial); | |
193 | if (f < 0) | |
194 | { | |
195 | fprintf(stderr, "Device VID 0x%04x PID 0x%04x", vid, pid); | |
196 | if (desc) | |
197 | fprintf(stderr, " Desc %s", desc); | |
198 | if (serial) | |
199 | fprintf(stderr, " Serial %s", serial); | |
200 | fprintf(stderr, "\n"); | |
201 | fprintf(stderr, "unable to open ftdi device: %d (%s)\n", | |
202 | f, ftdi_get_error_string(ftdi)); | |
203 | ||
204 | retval = -1; | |
205 | goto done; | |
206 | } | |
2db3a766 | 207 | } |
2db3a766 UB |
208 | if (erase) |
209 | { | |
82e0fc5a | 210 | f = ftdi_erase_eeprom(ftdi); /* needed to determine EEPROM chip type */ |
2db3a766 UB |
211 | if (f < 0) |
212 | { | |
4d12b998 | 213 | fprintf(stderr, "Erase failed: %s\n", |
f38b0866 | 214 | ftdi_get_error_string(ftdi)); |
bd4a9e38 UB |
215 | retval = -2; |
216 | goto done; | |
2db3a766 | 217 | } |
05c2e40a TJ |
218 | if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0) |
219 | { | |
220 | fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n", | |
82e0fc5a | 221 | f, ftdi_get_error_string(ftdi)); |
05c2e40a | 222 | } |
82e0fc5a | 223 | if (value == -1) |
2db3a766 | 224 | fprintf(stderr, "No EEPROM\n"); |
82e0fc5a | 225 | else if (value == 0) |
2db3a766 UB |
226 | fprintf(stderr, "Internal EEPROM\n"); |
227 | else | |
82e0fc5a | 228 | fprintf(stderr, "Found 93x%02x\n", value); |
bd4a9e38 UB |
229 | retval = 0; |
230 | goto done; | |
05c2e40a | 231 | } |
2db3a766 | 232 | |
05c2e40a | 233 | if (use_defaults) |
2db3a766 | 234 | { |
bd4a9e38 | 235 | ftdi_eeprom_initdefaults(ftdi, NULL, NULL, NULL); |
05c2e40a TJ |
236 | if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0) |
237 | { | |
238 | fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n", | |
82e0fc5a | 239 | f, ftdi_get_error_string(ftdi)); |
05c2e40a TJ |
240 | } |
241 | if (large_chip) | |
242 | if (ftdi_set_eeprom_value(ftdi, CHIP_TYPE, 0x66) <0) | |
243 | { | |
244 | fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n", | |
245 | f, ftdi_get_error_string(ftdi)); | |
246 | } | |
a35aa9bd | 247 | f=(ftdi_eeprom_build(ftdi)); |
2db3a766 UB |
248 | if (f < 0) |
249 | { | |
05c2e40a | 250 | fprintf(stderr, "ftdi_eeprom_build: %d (%s)\n", |
f38b0866 | 251 | f, ftdi_get_error_string(ftdi)); |
bd4a9e38 UB |
252 | retval = -1; |
253 | goto done; | |
2db3a766 UB |
254 | } |
255 | } | |
05c2e40a | 256 | else if (do_write) |
0091182e | 257 | { |
bd4a9e38 | 258 | ftdi_eeprom_initdefaults(ftdi, NULL, NULL, NULL); |
05c2e40a TJ |
259 | f = ftdi_erase_eeprom(ftdi); |
260 | if (ftdi_set_eeprom_value(ftdi, MAX_POWER, 500) <0) | |
261 | { | |
262 | fprintf(stderr, "ftdi_set_eeprom_value: %d (%s)\n", | |
82e0fc5a | 263 | f, ftdi_get_error_string(ftdi)); |
05c2e40a | 264 | } |
82e0fc5a | 265 | f = ftdi_erase_eeprom(ftdi);/* needed to determine EEPROM chip type */ |
05c2e40a TJ |
266 | if (ftdi_get_eeprom_value(ftdi, CHIP_TYPE, & value) <0) |
267 | { | |
268 | fprintf(stderr, "ftdi_get_eeprom_value: %d (%s)\n", | |
82e0fc5a | 269 | f, ftdi_get_error_string(ftdi)); |
05c2e40a | 270 | } |
82e0fc5a | 271 | if (value == -1) |
0091182e | 272 | fprintf(stderr, "No EEPROM\n"); |
82e0fc5a | 273 | else if (value == 0) |
0091182e UB |
274 | fprintf(stderr, "Internal EEPROM\n"); |
275 | else | |
82e0fc5a | 276 | fprintf(stderr, "Found 93x%02x\n", value); |
0091182e UB |
277 | f=(ftdi_eeprom_build(ftdi)); |
278 | if (f < 0) | |
279 | { | |
4d12b998 | 280 | fprintf(stderr, "Erase failed: %s\n", |
0091182e | 281 | ftdi_get_error_string(ftdi)); |
bd4a9e38 UB |
282 | retval = -2; |
283 | goto done; | |
0091182e UB |
284 | } |
285 | f = ftdi_write_eeprom(ftdi); | |
286 | { | |
05c2e40a | 287 | fprintf(stderr, "ftdi_eeprom_decode: %d (%s)\n", |
0091182e | 288 | f, ftdi_get_error_string(ftdi)); |
bd4a9e38 UB |
289 | retval = 1; |
290 | goto done; | |
0091182e | 291 | } |
05c2e40a | 292 | } |
8ee8775e | 293 | retval = read_decode_eeprom(ftdi); |
bd4a9e38 | 294 | done: |
f38b0866 | 295 | ftdi_usb_close(ftdi); |
8ee8775e | 296 | do_deinit: |
f38b0866 | 297 | ftdi_free(ftdi); |
bd4a9e38 | 298 | return retval; |
2db3a766 | 299 | } |