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Commit | Line | Data |
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e4842ff3 | 1 | /* |
a27a33dd | 2 | * $Id: setpci.c,v 1.12 2002/03/30 15:39:24 mj Exp $ |
e4842ff3 MM |
3 | * |
4 | * Linux PCI Utilities -- Manipulate PCI Configuration Registers | |
5 | * | |
a27a33dd | 6 | * Copyright (c) 1998 Martin Mares <mj@ucw.cz> |
e4842ff3 MM |
7 | * |
8 | * Can be freely distributed and used under the terms of the GNU GPL. | |
9 | */ | |
10 | ||
11 | #include <stdio.h> | |
12 | #include <string.h> | |
13 | #include <stdlib.h> | |
727ce158 | 14 | #include <stdarg.h> |
e4842ff3 | 15 | #include <unistd.h> |
7aad822b | 16 | |
e4842ff3 MM |
17 | #include "pciutils.h" |
18 | ||
19 | static int force; /* Don't complain if no devices match */ | |
20 | static int verbose; /* Verbosity level */ | |
b2c9b373 | 21 | static int demo_mode; /* Only show */ |
e4842ff3 | 22 | |
727ce158 | 23 | static struct pci_access *pacc; |
e4842ff3 MM |
24 | |
25 | struct op { | |
26 | struct op *next; | |
727ce158 | 27 | struct pci_dev **dev_vector; |
e4842ff3 MM |
28 | unsigned int addr; |
29 | unsigned int width; /* Byte width of the access */ | |
30 | int num_values; /* Number of values to write; <0=read */ | |
31 | unsigned int values[0]; | |
32 | }; | |
33 | ||
34 | static struct op *first_op, **last_op = &first_op; | |
35 | ||
727ce158 | 36 | static struct pci_dev ** |
e4842ff3 MM |
37 | select_devices(struct pci_filter *filt) |
38 | { | |
727ce158 | 39 | struct pci_dev *z, **a, **b; |
e4842ff3 MM |
40 | int cnt = 1; |
41 | ||
727ce158 MM |
42 | for(z=pacc->devices; z; z=z->next) |
43 | if (pci_filter_match(filt, z)) | |
e4842ff3 MM |
44 | cnt++; |
45 | a = b = xmalloc(sizeof(struct device *) * cnt); | |
727ce158 MM |
46 | for(z=pacc->devices; z; z=z->next) |
47 | if (pci_filter_match(filt, z)) | |
e4842ff3 MM |
48 | *a++ = z; |
49 | *a = NULL; | |
50 | return b; | |
51 | } | |
52 | ||
53 | static void | |
727ce158 | 54 | exec_op(struct op *op, struct pci_dev *dev) |
e4842ff3 MM |
55 | { |
56 | char *mm[] = { NULL, "%02x", "%04x", NULL, "%08x" }; | |
57 | char *m = mm[op->width]; | |
b2c9b373 | 58 | unsigned int x; |
33bc28a5 | 59 | int i, addr; |
e4842ff3 MM |
60 | |
61 | if (verbose) | |
727ce158 | 62 | printf("%02x:%02x.%x:%02x", dev->bus, dev->dev, dev->func, op->addr); |
33bc28a5 | 63 | addr = op->addr; |
b2c9b373 MM |
64 | if (op->num_values >= 0) |
65 | for(i=0; i<op->num_values; i++) | |
66 | { | |
67 | if (verbose) | |
68 | { | |
69 | putchar(' '); | |
70 | printf(m, op->values[i]); | |
71 | } | |
72 | if (demo_mode) | |
73 | continue; | |
74 | switch (op->width) | |
75 | { | |
76 | case 1: | |
33bc28a5 | 77 | pci_write_byte(dev, addr, op->values[i]); |
b2c9b373 MM |
78 | break; |
79 | case 2: | |
33bc28a5 | 80 | pci_write_word(dev, addr, op->values[i]); |
b2c9b373 MM |
81 | break; |
82 | default: | |
33bc28a5 | 83 | pci_write_long(dev, addr, op->values[i]); |
b2c9b373 MM |
84 | break; |
85 | } | |
33bc28a5 | 86 | addr += op->width; |
b2c9b373 | 87 | } |
e4842ff3 MM |
88 | else |
89 | { | |
90 | if (verbose) | |
b2c9b373 MM |
91 | printf(" = "); |
92 | if (!demo_mode) | |
93 | { | |
94 | switch (op->width) | |
95 | { | |
96 | case 1: | |
33bc28a5 | 97 | x = pci_read_byte(dev, addr); |
b2c9b373 MM |
98 | break; |
99 | case 2: | |
33bc28a5 | 100 | x = pci_read_word(dev, addr); |
b2c9b373 MM |
101 | break; |
102 | default: | |
33bc28a5 | 103 | x = pci_read_long(dev, addr); |
b2c9b373 MM |
104 | break; |
105 | } | |
b2c9b373 MM |
106 | printf(m, x); |
107 | } | |
108 | else | |
109 | putchar('?'); | |
e4842ff3 | 110 | } |
b2c9b373 | 111 | putchar('\n'); |
e4842ff3 MM |
112 | } |
113 | ||
114 | static void | |
115 | execute(struct op *op) | |
116 | { | |
727ce158 MM |
117 | struct pci_dev **vec = NULL; |
118 | struct pci_dev **pdev, *dev; | |
e4842ff3 MM |
119 | struct op *oops; |
120 | ||
121 | while (op) | |
122 | { | |
123 | pdev = vec = op->dev_vector; | |
124 | while (dev = *pdev++) | |
125 | for(oops=op; oops && oops->dev_vector == vec; oops=oops->next) | |
126 | exec_op(oops, dev); | |
127 | while (op && op->dev_vector == vec) | |
128 | op = op->next; | |
129 | } | |
130 | } | |
131 | ||
b2c9b373 MM |
132 | static void |
133 | scan_ops(struct op *op) | |
134 | { | |
b2c9b373 MM |
135 | while (op) |
136 | { | |
137 | if (op->num_values >= 0) | |
727ce158 | 138 | pacc->writeable = 1; |
b2c9b373 MM |
139 | op = op->next; |
140 | } | |
141 | } | |
142 | ||
143 | struct reg_name { | |
144 | int offset; | |
145 | int width; | |
146 | char *name; | |
147 | }; | |
148 | ||
149 | static struct reg_name pci_reg_names[] = { | |
150 | { 0x00, 2, "VENDOR_ID", }, | |
151 | { 0x02, 2, "DEVICE_ID", }, | |
152 | { 0x04, 2, "COMMAND", }, | |
153 | { 0x06, 2, "STATUS", }, | |
154 | { 0x08, 1, "REVISION", }, | |
155 | { 0x09, 1, "CLASS_PROG", }, | |
156 | { 0x0a, 2, "CLASS_DEVICE", }, | |
157 | { 0x0c, 1, "CACHE_LINE_SIZE", }, | |
158 | { 0x0d, 1, "LATENCY_TIMER", }, | |
159 | { 0x0e, 1, "HEADER_TYPE", }, | |
160 | { 0x0f, 1, "BIST", }, | |
161 | { 0x10, 4, "BASE_ADDRESS_0", }, | |
162 | { 0x14, 4, "BASE_ADDRESS_1", }, | |
163 | { 0x18, 4, "BASE_ADDRESS_2", }, | |
164 | { 0x1c, 4, "BASE_ADDRESS_3", }, | |
165 | { 0x20, 4, "BASE_ADDRESS_4", }, | |
166 | { 0x24, 4, "BASE_ADDRESS_5", }, | |
167 | { 0x28, 4, "CARDBUS_CIS", }, | |
168 | { 0x2c, 4, "SUBSYSTEM_VENDOR_ID", }, | |
169 | { 0x2e, 2, "SUBSYSTEM_ID", }, | |
170 | { 0x30, 4, "ROM_ADDRESS", }, | |
171 | { 0x3c, 1, "INTERRUPT_LINE", }, | |
172 | { 0x3d, 1, "INTERRUPT_PIN", }, | |
173 | { 0x3e, 1, "MIN_GNT", }, | |
174 | { 0x3f, 1, "MAX_LAT", }, | |
175 | { 0x18, 1, "PRIMARY_BUS", }, | |
176 | { 0x19, 1, "SECONDARY_BUS", }, | |
177 | { 0x1a, 1, "SUBORDINATE_BUS", }, | |
178 | { 0x1b, 1, "SEC_LATENCY_TIMER", }, | |
179 | { 0x1c, 1, "IO_BASE", }, | |
180 | { 0x1d, 1, "IO_LIMIT", }, | |
181 | { 0x1e, 2, "SEC_STATUS", }, | |
182 | { 0x20, 2, "MEMORY_BASE", }, | |
183 | { 0x22, 2, "MEMORY_LIMIT", }, | |
184 | { 0x24, 2, "PREF_MEMORY_BASE", }, | |
185 | { 0x26, 2, "PREF_MEMORY_LIMIT", }, | |
186 | { 0x28, 4, "PREF_BASE_UPPER32", }, | |
187 | { 0x2c, 4, "PREF_LIMIT_UPPER32", }, | |
188 | { 0x30, 2, "IO_BASE_UPPER16", }, | |
189 | { 0x32, 2, "IO_LIMIT_UPPER16", }, | |
190 | { 0x38, 4, "BRIDGE_ROM_ADDRESS", }, | |
191 | { 0x3e, 2, "BRIDGE_CONTROL", }, | |
192 | { 0x10, 4, "CB_CARDBUS_BASE", }, | |
193 | { 0x14, 2, "CB_CAPABILITIES", }, | |
194 | { 0x16, 2, "CB_SEC_STATUS", }, | |
195 | { 0x18, 1, "CB_BUS_NUMBER", }, | |
196 | { 0x19, 1, "CB_CARDBUS_NUMBER", }, | |
197 | { 0x1a, 1, "CB_SUBORDINATE_BUS", }, | |
198 | { 0x1b, 1, "CB_CARDBUS_LATENCY", }, | |
199 | { 0x1c, 4, "CB_MEMORY_BASE_0", }, | |
200 | { 0x20, 4, "CB_MEMORY_LIMIT_0", }, | |
201 | { 0x24, 4, "CB_MEMORY_BASE_1", }, | |
202 | { 0x28, 4, "CB_MEMORY_LIMIT_1", }, | |
203 | { 0x2c, 2, "CB_IO_BASE_0", }, | |
204 | { 0x2e, 2, "CB_IO_BASE_0_HI", }, | |
205 | { 0x30, 2, "CB_IO_LIMIT_0", }, | |
206 | { 0x32, 2, "CB_IO_LIMIT_0_HI", }, | |
207 | { 0x34, 2, "CB_IO_BASE_1", }, | |
208 | { 0x36, 2, "CB_IO_BASE_1_HI", }, | |
209 | { 0x38, 2, "CB_IO_LIMIT_1", }, | |
210 | { 0x3a, 2, "CB_IO_LIMIT_1_HI", }, | |
211 | { 0x40, 2, "CB_SUBSYSTEM_VENDOR_ID", }, | |
212 | { 0x42, 2, "CB_SUBSYSTEM_ID", }, | |
213 | { 0x44, 4, "CB_LEGACY_MODE_BASE", }, | |
214 | { 0x00, 0, NULL } | |
215 | }; | |
216 | ||
e4842ff3 MM |
217 | static void usage(void) __attribute__((noreturn)); |
218 | ||
219 | static void | |
220 | usage(void) | |
221 | { | |
222 | fprintf(stderr, | |
727ce158 | 223 | "Usage: setpci [<options>] (<device>+ <reg>[=<values>]*)*\n\ |
b2c9b373 MM |
224 | -f\t\tDon't complain if there's nothing to do\n\ |
225 | -v\t\tBe verbose\n\ | |
727ce158 MM |
226 | -D\t\tList changes, don't commit them\n" |
227 | GENERIC_HELP | |
228 | "<device>:\t-s [[<bus>]:][<slot>][.[<func>]]\n\ | |
b2c9b373 MM |
229 | \t|\t-d [<vendor>]:[<device>]\n\ |
230 | <reg>:\t\t<number>[.(B|W|L)]\n\ | |
231 | |\t\t<name>\n\ | |
232 | <values>:\t<value>[,<value>...]\n\ | |
e4842ff3 MM |
233 | "); |
234 | exit(1); | |
235 | } | |
236 | ||
237 | int | |
238 | main(int argc, char **argv) | |
239 | { | |
240 | enum { STATE_INIT, STATE_GOT_FILTER, STATE_GOT_OP } state = STATE_INIT; | |
241 | struct pci_filter filter; | |
727ce158 MM |
242 | struct pci_dev **selected_devices = NULL; |
243 | char *opts = GENERIC_OPTIONS ; | |
e4842ff3 | 244 | |
7aad822b MM |
245 | if (argc == 2 && !strcmp(argv[1], "--version")) |
246 | { | |
247 | puts("setpci version " PCIUTILS_VERSION); | |
248 | return 0; | |
249 | } | |
e4842ff3 MM |
250 | argc--; |
251 | argv++; | |
727ce158 MM |
252 | |
253 | pacc = pci_alloc(); | |
254 | pacc->error = die; | |
255 | ||
e4842ff3 MM |
256 | while (argc && argv[0][0] == '-') |
257 | { | |
258 | char *c = argv[0]+1; | |
259 | char *d = c; | |
727ce158 | 260 | char *e; |
e4842ff3 MM |
261 | while (*c) |
262 | switch (*c) | |
263 | { | |
264 | case 'v': | |
265 | verbose++; | |
266 | c++; | |
267 | break; | |
268 | case 'f': | |
269 | force++; | |
270 | c++; | |
271 | break; | |
b2c9b373 MM |
272 | case 'D': |
273 | demo_mode++; | |
274 | c++; | |
275 | break; | |
e4842ff3 MM |
276 | case 0: |
277 | break; | |
278 | default: | |
727ce158 MM |
279 | if (e = strchr(opts, *c)) |
280 | { | |
281 | char *arg; | |
282 | c++; | |
283 | if (e[1] == ':') | |
284 | { | |
285 | if (*c) | |
286 | arg = c; | |
287 | else if (argc > 1) | |
288 | { | |
289 | arg = argv[1]; | |
290 | argc--; argv++; | |
291 | } | |
292 | else | |
293 | usage(); | |
294 | c = ""; | |
295 | } | |
296 | else | |
297 | arg = NULL; | |
298 | if (!parse_generic_option(*e, pacc, arg)) | |
299 | usage(); | |
300 | } | |
301 | else | |
302 | { | |
303 | if (c != d) | |
304 | usage(); | |
305 | goto next; | |
306 | } | |
e4842ff3 MM |
307 | } |
308 | argc--; | |
309 | argv++; | |
310 | } | |
311 | next: | |
312 | ||
727ce158 MM |
313 | pci_init(pacc); |
314 | pci_scan_bus(pacc); | |
e4842ff3 MM |
315 | |
316 | while (argc) | |
317 | { | |
318 | char *c = argv[0]; | |
319 | char *d, *e, *f; | |
320 | int n, i; | |
321 | struct op *op; | |
322 | unsigned long ll, lim; | |
323 | ||
324 | if (*c == '-') | |
325 | { | |
326 | if (!c[1] || !strchr("sd", c[1])) | |
327 | usage(); | |
328 | if (c[2]) | |
329 | d = (c[2] == '=') ? c+3 : c+2; | |
183251d7 | 330 | else if (argc > 1) |
e4842ff3 MM |
331 | { |
332 | argc--; | |
333 | argv++; | |
334 | d = argv[0]; | |
335 | } | |
336 | else | |
337 | usage(); | |
338 | if (state != STATE_GOT_FILTER) | |
339 | { | |
727ce158 | 340 | pci_filter_init(pacc, &filter); |
e4842ff3 MM |
341 | state = STATE_GOT_FILTER; |
342 | } | |
343 | switch (c[1]) | |
344 | { | |
345 | case 's': | |
727ce158 MM |
346 | if (d = pci_filter_parse_slot(&filter, d)) |
347 | die("-s: %s", d); | |
e4842ff3 MM |
348 | break; |
349 | case 'd': | |
727ce158 MM |
350 | if (d = pci_filter_parse_id(&filter, d)) |
351 | die("-d: %s", d); | |
e4842ff3 MM |
352 | break; |
353 | default: | |
354 | usage(); | |
355 | } | |
356 | } | |
357 | else if (state == STATE_INIT) | |
358 | usage(); | |
359 | else | |
360 | { | |
361 | if (state == STATE_GOT_FILTER) | |
362 | selected_devices = select_devices(&filter); | |
363 | if (!selected_devices[0] && !force) | |
364 | fprintf(stderr, "setpci: Warning: No devices selected for `%s'.\n", c); | |
365 | state = STATE_GOT_OP; | |
366 | d = strchr(c, '='); | |
367 | if (d) | |
368 | { | |
369 | *d++ = 0; | |
b2c9b373 MM |
370 | if (!*d) |
371 | usage(); | |
e4842ff3 MM |
372 | for(e=d, n=1; *e; e++) |
373 | if (*e == ',') | |
374 | n++; | |
375 | op = xmalloc(sizeof(struct op) + n*sizeof(unsigned int)); | |
376 | } | |
377 | else | |
378 | { | |
379 | n = -1; | |
380 | op = xmalloc(sizeof(struct op)); | |
381 | } | |
382 | op->dev_vector = selected_devices; | |
383 | op->num_values = n; | |
384 | e = strchr(c, '.'); | |
385 | if (e) | |
386 | { | |
387 | *e++ = 0; | |
388 | if (e[1]) | |
389 | usage(); | |
390 | switch (*e & 0xdf) | |
391 | { | |
392 | case 'B': | |
393 | op->width = 1; break; | |
394 | case 'W': | |
395 | op->width = 2; break; | |
396 | case 'L': | |
397 | op->width = 4; break; | |
398 | default: | |
399 | usage(); | |
400 | } | |
401 | } | |
402 | else | |
403 | op->width = 1; | |
404 | ll = strtol(c, &f, 16); | |
b2c9b373 MM |
405 | if (f && *f) |
406 | { | |
407 | struct reg_name *r; | |
408 | for(r = pci_reg_names; r->name; r++) | |
409 | if (!strcasecmp(r->name, c)) | |
410 | break; | |
411 | if (!r->name || e) | |
412 | usage(); | |
413 | ll = r->offset; | |
414 | op->width = r->width; | |
415 | } | |
416 | if (ll > 0x100 || ll + op->width*((n < 0) ? 1 : n) > 0x100) | |
727ce158 | 417 | die("Register number out of range!"); |
b2c9b373 | 418 | if (ll & (op->width - 1)) |
727ce158 | 419 | die("Unaligned register address!"); |
b2c9b373 | 420 | op->addr = ll; |
e4842ff3 MM |
421 | for(i=0; i<n; i++) |
422 | { | |
423 | e = strchr(d, ','); | |
424 | if (e) | |
425 | *e++ = 0; | |
426 | ll = strtoul(d, &f, 16); | |
427 | lim = (2 << ((op->width << 3) - 1)) - 1; | |
428 | if (f && *f || | |
429 | (ll > lim && ll < ~0UL - lim)) | |
430 | usage(); | |
431 | op->values[i] = ll; | |
432 | d = e; | |
433 | } | |
434 | *last_op = op; | |
435 | last_op = &op->next; | |
436 | op->next = NULL; | |
437 | } | |
438 | argc--; | |
439 | argv++; | |
440 | } | |
441 | if (state == STATE_INIT) | |
442 | usage(); | |
443 | ||
b2c9b373 | 444 | scan_ops(first_op); |
e4842ff3 MM |
445 | execute(first_op); |
446 | ||
447 | return 0; | |
448 | } |