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