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.
15 #define PCIUTILS_SETPCI
18 static int force; /* Don't complain if no devices match */
19 static int verbose; /* Verbosity level */
20 static int demo_mode; /* Only show */
22 const char program_name[] = "setpci";
24 static struct pci_access *pacc;
33 struct pci_dev **dev_vector;
34 u16 cap_type; /* PCI_CAP_xxx or 0 */
37 unsigned int width; /* Byte width of the access */
38 unsigned int num_values; /* Number of values to write; 0=read */
39 struct value values[0];
42 static struct op *first_op, **last_op = &first_op;
43 static unsigned int max_values[] = { 0, 0xff, 0xffff, 0, 0xffffffff };
45 static struct pci_dev **
46 select_devices(struct pci_filter *filt)
48 struct pci_dev *z, **a, **b;
51 for (z=pacc->devices; z; z=z->next)
52 if (pci_filter_match(filt, z))
54 a = b = xmalloc(sizeof(struct device *) * cnt);
55 for (z=pacc->devices; z; z=z->next)
56 if (pci_filter_match(filt, z))
62 static void PCI_PRINTF(1,2)
63 trace(const char *fmt, ...)
73 exec_op(struct op *op, struct pci_dev *dev)
75 const char * const formats[] = { NULL, " %02x", " %04x", NULL, " %08x" };
76 const char * const mask_formats[] = { NULL, " %02x->(%02x:%02x)->%02x", " %04x->(%04x:%04x)->%04x", NULL, " %08x->(%08x:%08x)->%08x" };
79 int width = op->width;
82 sprintf(slot, "%04x:%02x:%02x.%x", dev->domain, dev->bus, dev->dev, dev->func);
87 cap = pci_find_cap(dev, op->cap_id, op->cap_type);
91 die("%s: %s %04x not found", slot, ((op->cap_type == PCI_CAP_NORMAL) ? "Capability" : "Extended capability"), op->cap_id);
92 trace(((op->cap_type == PCI_CAP_NORMAL) ? "(cap %02x @%02x) " : "(ecap %04x @%03x) "), op->cap_id, addr);
97 /* We have already checked it when parsing, but addressing relative to capabilities can change the address. */
99 die("%s: Unaligned access of width %d to register %04x", slot, width, addr);
100 if (addr + width > 0x1000)
101 die("%s: Access of width %d to register %04x out of range", slot, width, addr);
105 for (i=0; i<op->num_values; i++)
107 if ((op->values[i].mask & max_values[width]) == max_values[width])
109 x = op->values[i].value;
110 trace(formats[width], op->values[i].value);
117 y = pci_read_byte(dev, addr);
120 y = pci_read_word(dev, addr);
123 y = pci_read_long(dev, addr);
126 x = (y & ~op->values[i].mask) | op->values[i].value;
127 trace(mask_formats[width], y, op->values[i].value, op->values[i].mask, x);
134 pci_write_byte(dev, addr, x);
137 pci_write_word(dev, addr, x);
140 pci_write_long(dev, addr, x);
154 x = pci_read_byte(dev, addr);
157 x = pci_read_word(dev, addr);
160 x = pci_read_long(dev, addr);
163 printf(formats[width]+1, x);
169 execute(struct op *op)
171 struct pci_dev **vec = NULL;
172 struct pci_dev **pdev, *dev;
177 pdev = vec = op->dev_vector;
178 while (dev = *pdev++)
179 for (oops=op; oops && oops->dev_vector == vec; oops=oops->next)
181 while (op && op->dev_vector == vec)
187 scan_ops(struct op *op)
206 static const struct reg_name pci_reg_names[] = {
207 { 0, 0x00, 2, "VENDOR_ID" },
208 { 0, 0x02, 2, "DEVICE_ID" },
209 { 0, 0x04, 2, "COMMAND" },
210 { 0, 0x06, 2, "STATUS" },
211 { 0, 0x08, 1, "REVISION" },
212 { 0, 0x09, 1, "CLASS_PROG" },
213 { 0, 0x0a, 2, "CLASS_DEVICE" },
214 { 0, 0x0c, 1, "CACHE_LINE_SIZE" },
215 { 0, 0x0d, 1, "LATENCY_TIMER" },
216 { 0, 0x0e, 1, "HEADER_TYPE" },
217 { 0, 0x0f, 1, "BIST" },
218 { 0, 0x10, 4, "BASE_ADDRESS_0" },
219 { 0, 0x14, 4, "BASE_ADDRESS_1" },
220 { 0, 0x18, 4, "BASE_ADDRESS_2" },
221 { 0, 0x1c, 4, "BASE_ADDRESS_3" },
222 { 0, 0x20, 4, "BASE_ADDRESS_4" },
223 { 0, 0x24, 4, "BASE_ADDRESS_5" },
224 { 0, 0x28, 4, "CARDBUS_CIS" },
225 { 0, 0x2c, 4, "SUBSYSTEM_VENDOR_ID" },
226 { 0, 0x2e, 2, "SUBSYSTEM_ID" },
227 { 0, 0x30, 4, "ROM_ADDRESS" },
228 { 0, 0x3c, 1, "INTERRUPT_LINE" },
229 { 0, 0x3d, 1, "INTERRUPT_PIN" },
230 { 0, 0x3e, 1, "MIN_GNT" },
231 { 0, 0x3f, 1, "MAX_LAT" },
232 { 0, 0x18, 1, "PRIMARY_BUS" },
233 { 0, 0x19, 1, "SECONDARY_BUS" },
234 { 0, 0x1a, 1, "SUBORDINATE_BUS" },
235 { 0, 0x1b, 1, "SEC_LATENCY_TIMER" },
236 { 0, 0x1c, 1, "IO_BASE" },
237 { 0, 0x1d, 1, "IO_LIMIT" },
238 { 0, 0x1e, 2, "SEC_STATUS" },
239 { 0, 0x20, 2, "MEMORY_BASE" },
240 { 0, 0x22, 2, "MEMORY_LIMIT" },
241 { 0, 0x24, 2, "PREF_MEMORY_BASE" },
242 { 0, 0x26, 2, "PREF_MEMORY_LIMIT" },
243 { 0, 0x28, 4, "PREF_BASE_UPPER32" },
244 { 0, 0x2c, 4, "PREF_LIMIT_UPPER32" },
245 { 0, 0x30, 2, "IO_BASE_UPPER16" },
246 { 0, 0x32, 2, "IO_LIMIT_UPPER16" },
247 { 0, 0x38, 4, "BRIDGE_ROM_ADDRESS" },
248 { 0, 0x3e, 2, "BRIDGE_CONTROL" },
249 { 0, 0x10, 4, "CB_CARDBUS_BASE" },
250 { 0, 0x14, 2, "CB_CAPABILITIES" },
251 { 0, 0x16, 2, "CB_SEC_STATUS" },
252 { 0, 0x18, 1, "CB_BUS_NUMBER" },
253 { 0, 0x19, 1, "CB_CARDBUS_NUMBER" },
254 { 0, 0x1a, 1, "CB_SUBORDINATE_BUS" },
255 { 0, 0x1b, 1, "CB_CARDBUS_LATENCY" },
256 { 0, 0x1c, 4, "CB_MEMORY_BASE_0" },
257 { 0, 0x20, 4, "CB_MEMORY_LIMIT_0" },
258 { 0, 0x24, 4, "CB_MEMORY_BASE_1" },
259 { 0, 0x28, 4, "CB_MEMORY_LIMIT_1" },
260 { 0, 0x2c, 2, "CB_IO_BASE_0" },
261 { 0, 0x2e, 2, "CB_IO_BASE_0_HI" },
262 { 0, 0x30, 2, "CB_IO_LIMIT_0" },
263 { 0, 0x32, 2, "CB_IO_LIMIT_0_HI" },
264 { 0, 0x34, 2, "CB_IO_BASE_1" },
265 { 0, 0x36, 2, "CB_IO_BASE_1_HI" },
266 { 0, 0x38, 2, "CB_IO_LIMIT_1" },
267 { 0, 0x3a, 2, "CB_IO_LIMIT_1_HI" },
268 { 0, 0x40, 2, "CB_SUBSYSTEM_VENDOR_ID" },
269 { 0, 0x42, 2, "CB_SUBSYSTEM_ID" },
270 { 0, 0x44, 4, "CB_LEGACY_MODE_BASE" },
271 { 0x10001, 0, 0, "CAP_PM" },
272 { 0x10002, 0, 0, "CAP_AGP" },
273 { 0x10003, 0, 0, "CAP_VPD" },
274 { 0x10004, 0, 0, "CAP_SLOTID" },
275 { 0x10005, 0, 0, "CAP_MSI" },
276 { 0x10006, 0, 0, "CAP_CHSWP" },
277 { 0x10007, 0, 0, "CAP_PCIX" },
278 { 0x10008, 0, 0, "CAP_HT" },
279 { 0x10009, 0, 0, "CAP_VNDR" },
280 { 0x1000a, 0, 0, "CAP_DBG" },
281 { 0x1000b, 0, 0, "CAP_CCRC" },
282 { 0x1000c, 0, 0, "CAP_HOTPLUG" },
283 { 0x1000d, 0, 0, "CAP_SSVID" },
284 { 0x1000e, 0, 0, "CAP_AGP3" },
285 { 0x1000f, 0, 0, "CAP_SECURE" },
286 { 0x10010, 0, 0, "CAP_EXP" },
287 { 0x10011, 0, 0, "CAP_MSIX" },
288 { 0x10012, 0, 0, "CAP_SATA" },
289 { 0x10013, 0, 0, "CAP_AF" },
290 { 0x20001, 0, 0, "ECAP_AER" },
291 { 0x20002, 0, 0, "ECAP_VC" },
292 { 0x20003, 0, 0, "ECAP_DSN" },
293 { 0x20004, 0, 0, "ECAP_PB" },
294 { 0x20005, 0, 0, "ECAP_RCLINK" },
295 { 0x20006, 0, 0, "ECAP_RCILINK" },
296 { 0x20007, 0, 0, "ECAP_RCECOLL" },
297 { 0x20008, 0, 0, "ECAP_MFVC" },
298 { 0x2000a, 0, 0, "ECAP_RBCB" },
299 { 0x2000b, 0, 0, "ECAP_VNDR" },
300 { 0x2000d, 0, 0, "ECAP_ACS" },
301 { 0x2000e, 0, 0, "ECAP_ARI" },
302 { 0x2000f, 0, 0, "ECAP_ATS" },
303 { 0x20010, 0, 0, "ECAP_SRIOV" },
310 const struct reg_name *r;
312 printf("cap pos w name\n");
313 for (r = pci_reg_names; r->name; r++)
315 if (r->cap >= 0x20000)
316 printf("%04x", r->cap - 0x20000);
318 printf(" %02x", r->cap - 0x10000);
321 printf(" %02x %c %s\n", r->offset, "-BW?L"[r->width], r->name);
329 "Usage: setpci [<options>] (<device>+ <reg>[=<values>]*)*\n"
332 "-f\t\tDon't complain if there's nothing to do\n"
334 "-D\t\tList changes, don't commit them\n"
335 "--dumpregs\tDump all known register names and exit\n"
337 "PCI access options:\n"
340 "Setting commands:\n"
341 "<device>:\t-s [[[<domain>]:][<bus>]:][<slot>][.[<func>]]\n"
342 "\t\t-d [<vendor>]:[<device>]\n"
343 "<reg>:\t\t<base>[+<offset>][.(B|W|L)]\n"
344 "<base>:\t\t<address>\n"
345 "\t\t<named-register>\n"
346 "\t\t[E]CAP_<capability-name>\n"
347 "\t\t[E]CAP<capability-number>\n"
348 "<values>:\t<value>[,<value>...]\n"
350 "\t\t<hex>:<mask>\n");
354 static void NONRET PCI_PRINTF(1,2)
355 parse_err(const char *msg, ...)
359 fprintf(stderr, "setpci: ");
360 vfprintf(stderr, msg, args);
361 fprintf(stderr, ".\nTry `setpci --help' for more information.\n");
366 parse_options(int argc, char **argv)
368 const char opts[] = GENERIC_OPTIONS;
373 if (!strcmp(argv[1], "--help"))
375 if (!strcmp(argv[1], "--version"))
377 puts("setpci version " PCIUTILS_VERSION);
380 if (!strcmp(argv[1], "--dumpregs"))
387 while (i < argc && argv[i][0] == '-')
389 char *c = argv[i++] + 1;
410 if (e = strchr(opts, *c))
421 parse_err("Option -%c requires an argument", *e);
426 if (!parse_generic_option(*e, pacc, arg))
427 parse_err("Unable to parse option -%c", *e);
432 parse_err("Invalid or misplaced option -%c", *c);
441 static int parse_filter(int argc, char **argv, int i, struct pci_filter *filter)
446 if (!c[1] || !strchr("sd", c[1]))
447 parse_err("Invalid option -%c", c[1]);
449 d = (c[2] == '=') ? c+3 : c+2;
453 parse_err("Option -%c requires an argument", c[1]);
457 if (d = pci_filter_parse_slot(filter, d))
458 parse_err("Unable to parse filter -s %s", d);
461 if (d = pci_filter_parse_id(filter, d))
462 parse_err("Unable to parse filter -d %s", d);
465 parse_err("Unknown filter option -%c", c[1]);
471 static const struct reg_name *parse_reg_name(char *name)
473 const struct reg_name *r;
475 for (r = pci_reg_names; r->name; r++)
476 if (!strcasecmp(r->name, name))
481 static int parse_x32(char *c, char **stopp, unsigned int *resp)
489 l = strtoul(c, &stop, 16);
509 static void parse_register(struct op *op, char *base)
511 const struct reg_name *r;
514 op->cap_type = op->cap_id = 0;
515 if (parse_x32(base, NULL, &op->addr) > 0)
517 else if (r = parse_reg_name(base))
519 switch (r->cap & 0xff0000)
522 op->cap_type = PCI_CAP_NORMAL;
525 op->cap_type = PCI_CAP_EXTENDED;
528 op->cap_id = r->cap & 0xffff;
529 op->addr = r->offset;
530 if (r->width && !op->width)
531 op->width = r->width;
534 else if (!strncasecmp(base, "CAP", 3))
536 if (parse_x32(base+3, NULL, &cap) > 0 && cap < 0x100)
538 op->cap_type = PCI_CAP_NORMAL;
544 else if (!strncasecmp(base, "ECAP", 4))
546 if (parse_x32(base+4, NULL, &cap) > 0 && cap < 0x1000)
548 op->cap_type = PCI_CAP_EXTENDED;
554 parse_err("Unknown register \"%s\"", base);
557 static void parse_op(char *c, struct pci_dev **selected_devices)
559 char *base, *offset, *width, *value;
564 /* Split the argument */
566 if (value = strchr(base, '='))
568 if (width = strchr(base, '.'))
570 if (offset = strchr(base, '+'))
573 /* Look for setting of values and count how many */
578 parse_err("Missing value");
580 for (e=value; *e; e++)
585 /* Allocate the operation */
586 op = xmalloc(sizeof(struct op) + n*sizeof(struct value));
587 op->dev_vector = selected_devices;
590 /* What is the width suffix? */
594 parse_err("Invalid width \"%s\"", width);
595 switch (*width & 0xdf)
598 op->width = 1; break;
600 op->width = 2; break;
602 op->width = 4; break;
604 parse_err("Invalid width \"%c\"", *width);
610 /* Find the register */
611 parse_register(op, base);
613 parse_err("Missing width");
619 if (parse_x32(offset, NULL, &off) <= 0 || off >= 0x1000)
620 parse_err("Invalid offset \"%s\"", offset);
625 if (op->addr >= 0x1000 || op->addr + op->width*(n ? n : 1) > 0x1000)
626 parse_err("Register number %02x out of range", op->addr);
627 if (op->addr & (op->width - 1))
628 parse_err("Unaligned register address %02x", op->addr);
630 /* Parse the values */
633 unsigned int ll, lim;
634 e = strchr(value, ',');
637 if (parse_x32(value, &f, &ll) < 0 || f && *f != ':')
638 parse_err("Invalid value \"%s\"", value);
639 lim = max_values[op->width];
640 if (ll > lim && ll < ~0U - lim)
641 parse_err("Value \"%s\" is out of range", value);
642 op->values[j].value = ll;
645 if (parse_x32(f+1, NULL, &ll) <= 0)
646 parse_err("Invalid mask \"%s\"", f+1);
647 if (ll > lim && ll < ~0U - lim)
648 parse_err("Mask \"%s\" is out of range", f+1);
649 op->values[j].mask = ll;
650 op->values[j].value &= ll;
653 op->values[j].mask = ~0U;
662 static void parse_ops(int argc, char **argv, int i)
664 enum { STATE_INIT, STATE_GOT_FILTER, STATE_GOT_OP } state = STATE_INIT;
665 struct pci_filter filter;
666 struct pci_dev **selected_devices = NULL;
674 if (state != STATE_GOT_FILTER)
675 pci_filter_init(pacc, &filter);
676 i = parse_filter(argc, argv, i-1, &filter);
677 state = STATE_GOT_FILTER;
681 if (state == STATE_INIT)
682 parse_err("Filter specification expected");
683 if (state == STATE_GOT_FILTER)
684 selected_devices = select_devices(&filter);
685 if (!selected_devices[0] && !force)
686 fprintf(stderr, "setpci: Warning: No devices selected for \"%s\".\n", c);
687 parse_op(c, selected_devices);
688 state = STATE_GOT_OP;
691 if (state == STATE_INIT)
692 parse_err("No operation specified");
696 main(int argc, char **argv)
702 i = parse_options(argc, argv);
707 parse_ops(argc, argv, i);