2 * The PCI Utilities -- Manipulate PCI Configuration Registers
4 * Copyright (c) 1998--2008 Martin Mares <mj@ucw.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
16 #define PCIUTILS_SETPCI
19 static int force; /* Don't complain if no devices match */
20 static int verbose; /* Verbosity level */
21 static int demo_mode; /* Only show */
23 const char program_name[] = "setpci";
25 static struct pci_access *pacc;
34 struct pci_dev **dev_vector;
35 u16 cap_type; /* PCI_CAP_xxx or 0 */
38 unsigned int width; /* Byte width of the access */
39 unsigned int num_values; /* Number of values to write; 0=read */
40 struct value values[0];
43 static struct op *first_op, **last_op = &first_op;
44 static unsigned int max_values[] = { 0, 0xff, 0xffff, 0, 0xffffffff };
46 static struct pci_dev **
47 select_devices(struct pci_filter *filt)
49 struct pci_dev *z, **a, **b;
52 for (z=pacc->devices; z; z=z->next)
53 if (pci_filter_match(filt, z))
55 a = b = xmalloc(sizeof(struct device *) * cnt);
56 for (z=pacc->devices; z; z=z->next)
57 if (pci_filter_match(filt, z))
63 static void PCI_PRINTF(1,2)
64 trace(const char *fmt, ...)
74 exec_op(struct op *op, struct pci_dev *dev)
76 const char * const formats[] = { NULL, " %02x", " %04x", NULL, " %08x" };
77 const char * const mask_formats[] = { NULL, " %02x->(%02x:%02x)->%02x", " %04x->(%04x:%04x)->%04x", NULL, " %08x->(%08x:%08x)->%08x" };
80 int width = op->width;
83 sprintf(slot, "%04x:%02x:%02x.%x", dev->domain, dev->bus, dev->dev, dev->func);
88 cap = pci_find_cap(dev, op->cap_id, op->cap_type);
92 die("%s: %s %04x not found", slot, ((op->cap_type == PCI_CAP_NORMAL) ? "Capability" : "Extended capability"), op->cap_id);
93 trace(((op->cap_type == PCI_CAP_NORMAL) ? "(cap %02x @%02x) " : "(ecap %04x @%03x) "), op->cap_id, addr);
98 /* We have already checked it when parsing, but addressing relative to capabilities can change the address. */
100 die("%s: Unaligned access of width %d to register %04x", slot, width, addr);
101 if (addr + width > 0x1000)
102 die("%s: Access of width %d to register %04x out of range", slot, width, addr);
106 for (i=0; i<op->num_values; i++)
108 if ((op->values[i].mask & max_values[width]) == max_values[width])
110 x = op->values[i].value;
111 trace(formats[width], op->values[i].value);
118 y = pci_read_byte(dev, addr);
121 y = pci_read_word(dev, addr);
124 y = pci_read_long(dev, addr);
127 x = (y & ~op->values[i].mask) | op->values[i].value;
128 trace(mask_formats[width], y, op->values[i].value, op->values[i].mask, x);
135 pci_write_byte(dev, addr, x);
138 pci_write_word(dev, addr, x);
141 pci_write_long(dev, addr, x);
155 x = pci_read_byte(dev, addr);
158 x = pci_read_word(dev, addr);
161 x = pci_read_long(dev, addr);
164 printf(formats[width]+1, x);
170 execute(struct op *op)
172 struct pci_dev **vec = NULL;
173 struct pci_dev **pdev, *dev;
178 pdev = vec = op->dev_vector;
179 while (dev = *pdev++)
180 for (oops=op; oops && oops->dev_vector == vec; oops=oops->next)
182 while (op && op->dev_vector == vec)
188 scan_ops(struct op *op)
207 static const struct reg_name pci_reg_names[] = {
208 { 0, 0x00, 2, "VENDOR_ID" },
209 { 0, 0x02, 2, "DEVICE_ID" },
210 { 0, 0x04, 2, "COMMAND" },
211 { 0, 0x06, 2, "STATUS" },
212 { 0, 0x08, 1, "REVISION" },
213 { 0, 0x09, 1, "CLASS_PROG" },
214 { 0, 0x0a, 2, "CLASS_DEVICE" },
215 { 0, 0x0c, 1, "CACHE_LINE_SIZE" },
216 { 0, 0x0d, 1, "LATENCY_TIMER" },
217 { 0, 0x0e, 1, "HEADER_TYPE" },
218 { 0, 0x0f, 1, "BIST" },
219 { 0, 0x10, 4, "BASE_ADDRESS_0" },
220 { 0, 0x14, 4, "BASE_ADDRESS_1" },
221 { 0, 0x18, 4, "BASE_ADDRESS_2" },
222 { 0, 0x1c, 4, "BASE_ADDRESS_3" },
223 { 0, 0x20, 4, "BASE_ADDRESS_4" },
224 { 0, 0x24, 4, "BASE_ADDRESS_5" },
225 { 0, 0x28, 4, "CARDBUS_CIS" },
226 { 0, 0x2c, 4, "SUBSYSTEM_VENDOR_ID" },
227 { 0, 0x2e, 2, "SUBSYSTEM_ID" },
228 { 0, 0x30, 4, "ROM_ADDRESS" },
229 { 0, 0x3c, 1, "INTERRUPT_LINE" },
230 { 0, 0x3d, 1, "INTERRUPT_PIN" },
231 { 0, 0x3e, 1, "MIN_GNT" },
232 { 0, 0x3f, 1, "MAX_LAT" },
233 { 0, 0x18, 1, "PRIMARY_BUS" },
234 { 0, 0x19, 1, "SECONDARY_BUS" },
235 { 0, 0x1a, 1, "SUBORDINATE_BUS" },
236 { 0, 0x1b, 1, "SEC_LATENCY_TIMER" },
237 { 0, 0x1c, 1, "IO_BASE" },
238 { 0, 0x1d, 1, "IO_LIMIT" },
239 { 0, 0x1e, 2, "SEC_STATUS" },
240 { 0, 0x20, 2, "MEMORY_BASE" },
241 { 0, 0x22, 2, "MEMORY_LIMIT" },
242 { 0, 0x24, 2, "PREF_MEMORY_BASE" },
243 { 0, 0x26, 2, "PREF_MEMORY_LIMIT" },
244 { 0, 0x28, 4, "PREF_BASE_UPPER32" },
245 { 0, 0x2c, 4, "PREF_LIMIT_UPPER32" },
246 { 0, 0x30, 2, "IO_BASE_UPPER16" },
247 { 0, 0x32, 2, "IO_LIMIT_UPPER16" },
248 { 0, 0x38, 4, "BRIDGE_ROM_ADDRESS" },
249 { 0, 0x3e, 2, "BRIDGE_CONTROL" },
250 { 0, 0x10, 4, "CB_CARDBUS_BASE" },
251 { 0, 0x14, 2, "CB_CAPABILITIES" },
252 { 0, 0x16, 2, "CB_SEC_STATUS" },
253 { 0, 0x18, 1, "CB_BUS_NUMBER" },
254 { 0, 0x19, 1, "CB_CARDBUS_NUMBER" },
255 { 0, 0x1a, 1, "CB_SUBORDINATE_BUS" },
256 { 0, 0x1b, 1, "CB_CARDBUS_LATENCY" },
257 { 0, 0x1c, 4, "CB_MEMORY_BASE_0" },
258 { 0, 0x20, 4, "CB_MEMORY_LIMIT_0" },
259 { 0, 0x24, 4, "CB_MEMORY_BASE_1" },
260 { 0, 0x28, 4, "CB_MEMORY_LIMIT_1" },
261 { 0, 0x2c, 2, "CB_IO_BASE_0" },
262 { 0, 0x2e, 2, "CB_IO_BASE_0_HI" },
263 { 0, 0x30, 2, "CB_IO_LIMIT_0" },
264 { 0, 0x32, 2, "CB_IO_LIMIT_0_HI" },
265 { 0, 0x34, 2, "CB_IO_BASE_1" },
266 { 0, 0x36, 2, "CB_IO_BASE_1_HI" },
267 { 0, 0x38, 2, "CB_IO_LIMIT_1" },
268 { 0, 0x3a, 2, "CB_IO_LIMIT_1_HI" },
269 { 0, 0x40, 2, "CB_SUBSYSTEM_VENDOR_ID" },
270 { 0, 0x42, 2, "CB_SUBSYSTEM_ID" },
271 { 0, 0x44, 4, "CB_LEGACY_MODE_BASE" },
272 { 0x10001, 0, 0, "CAP_PM" },
273 { 0x10002, 0, 0, "CAP_AGP" },
274 { 0x10003, 0, 0, "CAP_VPD" },
275 { 0x10004, 0, 0, "CAP_SLOTID" },
276 { 0x10005, 0, 0, "CAP_MSI" },
277 { 0x10006, 0, 0, "CAP_CHSWP" },
278 { 0x10007, 0, 0, "CAP_PCIX" },
279 { 0x10008, 0, 0, "CAP_HT" },
280 { 0x10009, 0, 0, "CAP_VNDR" },
281 { 0x1000a, 0, 0, "CAP_DBG" },
282 { 0x1000b, 0, 0, "CAP_CCRC" },
283 { 0x1000c, 0, 0, "CAP_HOTPLUG" },
284 { 0x1000d, 0, 0, "CAP_SSVID" },
285 { 0x1000e, 0, 0, "CAP_AGP3" },
286 { 0x1000f, 0, 0, "CAP_SECURE" },
287 { 0x10010, 0, 0, "CAP_EXP" },
288 { 0x10011, 0, 0, "CAP_MSIX" },
289 { 0x10012, 0, 0, "CAP_SATA" },
290 { 0x10013, 0, 0, "CAP_AF" },
291 { 0x20001, 0, 0, "ECAP_AER" },
292 { 0x20002, 0, 0, "ECAP_VC" },
293 { 0x20003, 0, 0, "ECAP_DSN" },
294 { 0x20004, 0, 0, "ECAP_PB" },
295 { 0x20005, 0, 0, "ECAP_RCLINK" },
296 { 0x20006, 0, 0, "ECAP_RCILINK" },
297 { 0x20007, 0, 0, "ECAP_RCECOLL" },
298 { 0x20008, 0, 0, "ECAP_MFVC" },
299 { 0x2000a, 0, 0, "ECAP_RBCB" },
300 { 0x2000b, 0, 0, "ECAP_VNDR" },
301 { 0x2000d, 0, 0, "ECAP_ACS" },
302 { 0x2000e, 0, 0, "ECAP_ARI" },
303 { 0x2000f, 0, 0, "ECAP_ATS" },
304 { 0x20010, 0, 0, "ECAP_SRIOV" },
311 const struct reg_name *r;
313 printf("cap pos w name\n");
314 for (r = pci_reg_names; r->name; r++)
316 if (r->cap >= 0x20000)
317 printf("%04x", r->cap - 0x20000);
319 printf(" %02x", r->cap - 0x10000);
322 printf(" %02x %c %s\n", r->offset, "-BW?L"[r->width], r->name);
330 "Usage: setpci [<options>] (<device>+ <reg>[=<values>]*)*\n"
333 "-f\t\tDon't complain if there's nothing to do\n"
335 "-D\t\tList changes, don't commit them\n"
336 "--dumpregs\tDump all known register names and exit\n"
338 "PCI access options:\n"
341 "Setting commands:\n"
342 "<device>:\t-s [[[<domain>]:][<bus>]:][<slot>][.[<func>]]\n"
343 "\t\t-d [<vendor>]:[<device>]\n"
344 "<reg>:\t\t<base>[+<offset>][.(B|W|L)]\n"
345 "<base>:\t\t<address>\n"
346 "\t\t<named-register>\n"
347 "\t\t[E]CAP_<capability-name>\n"
348 "\t\t[E]CAP<capability-number>\n"
349 "<values>:\t<value>[,<value>...]\n"
351 "\t\t<hex>:<mask>\n");
355 static void NONRET PCI_PRINTF(1,2)
356 parse_err(const char *msg, ...)
360 fprintf(stderr, "setpci: ");
361 vfprintf(stderr, msg, args);
362 fprintf(stderr, ".\nTry `setpci --help' for more information.\n");
367 parse_options(int argc, char **argv)
369 const char opts[] = GENERIC_OPTIONS;
374 if (!strcmp(argv[1], "--help"))
376 if (!strcmp(argv[1], "--version"))
378 puts("setpci version " PCIUTILS_VERSION);
381 if (!strcmp(argv[1], "--dumpregs"))
388 while (i < argc && argv[i][0] == '-')
390 char *c = argv[i++] + 1;
411 if (e = strchr(opts, *c))
422 parse_err("Option -%c requires an argument", *e);
427 if (!parse_generic_option(*e, pacc, arg))
428 parse_err("Unable to parse option -%c", *e);
433 parse_err("Invalid or misplaced option -%c", *c);
442 static int parse_filter(int argc, char **argv, int i, struct pci_filter *filter)
447 if (!c[1] || !strchr("sd", c[1]))
448 parse_err("Invalid option -%c", c[1]);
450 d = (c[2] == '=') ? c+3 : c+2;
454 parse_err("Option -%c requires an argument", c[1]);
458 if (d = pci_filter_parse_slot(filter, d))
459 parse_err("Unable to parse filter -s %s", d);
462 if (d = pci_filter_parse_id(filter, d))
463 parse_err("Unable to parse filter -d %s", d);
466 parse_err("Unknown filter option -%c", c[1]);
472 static const struct reg_name *parse_reg_name(char *name)
474 const struct reg_name *r;
476 for (r = pci_reg_names; r->name; r++)
477 if (!strcasecmp(r->name, name))
482 static int parse_x32(char *c, char **stopp, unsigned int *resp)
490 l = strtoul(c, &stop, 16);
510 static void parse_register(struct op *op, char *base)
512 const struct reg_name *r;
515 op->cap_type = op->cap_id = 0;
516 if (parse_x32(base, NULL, &op->addr) > 0)
518 else if (r = parse_reg_name(base))
520 switch (r->cap & 0xff0000)
523 op->cap_type = PCI_CAP_NORMAL;
526 op->cap_type = PCI_CAP_EXTENDED;
529 op->cap_id = r->cap & 0xffff;
530 op->addr = r->offset;
531 if (r->width && !op->width)
532 op->width = r->width;
535 else if (!strncasecmp(base, "CAP", 3))
537 if (parse_x32(base+3, NULL, &cap) > 0 && cap < 0x100)
539 op->cap_type = PCI_CAP_NORMAL;
545 else if (!strncasecmp(base, "ECAP", 4))
547 if (parse_x32(base+4, NULL, &cap) > 0 && cap < 0x1000)
549 op->cap_type = PCI_CAP_EXTENDED;
555 parse_err("Unknown register \"%s\"", base);
558 static void parse_op(char *c, struct pci_dev **selected_devices)
560 char *base, *offset, *width, *value;
565 /* Split the argument */
567 if (value = strchr(base, '='))
569 if (width = strchr(base, '.'))
571 if (offset = strchr(base, '+'))
574 /* Look for setting of values and count how many */
579 parse_err("Missing value");
581 for (e=value; *e; e++)
586 /* Allocate the operation */
587 op = xmalloc(sizeof(struct op) + n*sizeof(struct value));
588 op->dev_vector = selected_devices;
591 /* What is the width suffix? */
595 parse_err("Invalid width \"%s\"", width);
596 switch (*width & 0xdf)
599 op->width = 1; break;
601 op->width = 2; break;
603 op->width = 4; break;
605 parse_err("Invalid width \"%c\"", *width);
611 /* Find the register */
612 parse_register(op, base);
614 parse_err("Missing width");
620 if (parse_x32(offset, NULL, &off) <= 0 || off >= 0x1000)
621 parse_err("Invalid offset \"%s\"", offset);
626 if (op->addr >= 0x1000 || op->addr + op->width*(n ? n : 1) > 0x1000)
627 parse_err("Register number %02x out of range", op->addr);
628 if (op->addr & (op->width - 1))
629 parse_err("Unaligned register address %02x", op->addr);
631 /* Parse the values */
634 unsigned int ll, lim;
635 e = strchr(value, ',');
638 if (parse_x32(value, &f, &ll) < 0 || f && *f != ':')
639 parse_err("Invalid value \"%s\"", value);
640 lim = max_values[op->width];
641 if (ll > lim && ll < ~0UL - lim)
642 parse_err("Value \"%s\" is out of range", value);
643 op->values[j].value = ll;
646 if (parse_x32(f+1, NULL, &ll) <= 0)
647 parse_err("Invalid mask \"%s\"", f+1);
648 if (ll > lim && ll < ~0UL - lim)
649 parse_err("Mask \"%s\" is out of range", f+1);
650 op->values[j].mask = ll;
651 op->values[j].value &= ll;
654 op->values[j].mask = ~0U;
663 static void parse_ops(int argc, char **argv, int i)
665 enum { STATE_INIT, STATE_GOT_FILTER, STATE_GOT_OP } state = STATE_INIT;
666 struct pci_filter filter;
667 struct pci_dev **selected_devices = NULL;
675 if (state != STATE_GOT_FILTER)
676 pci_filter_init(pacc, &filter);
677 i = parse_filter(argc, argv, i-1, &filter);
678 state = STATE_GOT_FILTER;
682 if (state == STATE_INIT)
683 parse_err("Filter specification expected");
684 if (state == STATE_GOT_FILTER)
685 selected_devices = select_devices(&filter);
686 if (!selected_devices[0] && !force)
687 fprintf(stderr, "setpci: Warning: No devices selected for \"%s\".\n", c);
688 parse_op(c, selected_devices);
689 state = STATE_GOT_OP;
692 if (state == STATE_INIT)
693 parse_err("No operation specified");
697 main(int argc, char **argv)
703 i = parse_options(argc, argv);
708 parse_ops(argc, argv, i);