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 unsigned int cap; /* Capability: 0=none, 10000-100ff=normal, 20000-2ffff=extended */
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))
63 exec_op(struct op *op, struct pci_dev *dev)
65 char *formats[] = { NULL, "%02x", "%04x", NULL, "%08x" };
66 char *mask_formats[] = { NULL, "%02x->(%02x:%02x)->%02x", "%04x->(%04x:%04x)->%04x", NULL, "%08x->(%08x:%08x)->%08x" };
69 int width = op->width;
72 printf("%02x:%02x.%x", dev->bus, dev->dev, dev->func);
76 if (op->cap < 0x20000)
79 printf("(cap %02x)", op->cap - 0x10000);
80 cap = pci_find_cap(dev, op->cap - 0x10000, PCI_CAP_NORMAL);
85 printf("(ecap %04x)", op->cap - 0x20000);
86 cap = pci_find_cap(dev, op->cap - 0x20000, PCI_CAP_EXTENDED);
92 /* FIXME: Report the error properly */
93 die("Capability %08x not found", op->cap);
98 printf(":%02x", addr);
101 for (i=0; i<op->num_values; i++)
103 if (addr + width > 0x1000)
104 die("Out of range"); /* FIXME */
105 if ((op->values[i].mask & max_values[width]) == max_values[width])
107 x = op->values[i].value;
111 printf(formats[width], op->values[i].value);
119 y = pci_read_byte(dev, addr);
122 y = pci_read_word(dev, addr);
125 y = pci_read_long(dev, addr);
128 x = (y & ~op->values[i].mask) | op->values[i].value;
132 printf(mask_formats[width], y, op->values[i].value, op->values[i].mask, x);
140 pci_write_byte(dev, addr, x);
143 pci_write_word(dev, addr, x);
146 pci_write_long(dev, addr, x);
159 if (addr + width > 0x1000)
160 die("Out of range"); /* FIXME */
164 x = pci_read_byte(dev, addr);
167 x = pci_read_word(dev, addr);
170 x = pci_read_long(dev, addr);
173 printf(formats[width], x);
179 execute(struct op *op)
181 struct pci_dev **vec = NULL;
182 struct pci_dev **pdev, *dev;
187 pdev = vec = op->dev_vector;
188 while (dev = *pdev++)
189 for (oops=op; oops && oops->dev_vector == vec; oops=oops->next)
191 while (op && op->dev_vector == vec)
197 scan_ops(struct op *op)
214 static const struct reg_name pci_reg_names[] = {
215 { 0, 0x00, 2, "VENDOR_ID" },
216 { 0, 0x02, 2, "DEVICE_ID" },
217 { 0, 0x04, 2, "COMMAND" },
218 { 0, 0x06, 2, "STATUS" },
219 { 0, 0x08, 1, "REVISION" },
220 { 0, 0x09, 1, "CLASS_PROG" },
221 { 0, 0x0a, 2, "CLASS_DEVICE" },
222 { 0, 0x0c, 1, "CACHE_LINE_SIZE" },
223 { 0, 0x0d, 1, "LATENCY_TIMER" },
224 { 0, 0x0e, 1, "HEADER_TYPE" },
225 { 0, 0x0f, 1, "BIST" },
226 { 0, 0x10, 4, "BASE_ADDRESS_0" },
227 { 0, 0x14, 4, "BASE_ADDRESS_1" },
228 { 0, 0x18, 4, "BASE_ADDRESS_2" },
229 { 0, 0x1c, 4, "BASE_ADDRESS_3" },
230 { 0, 0x20, 4, "BASE_ADDRESS_4" },
231 { 0, 0x24, 4, "BASE_ADDRESS_5" },
232 { 0, 0x28, 4, "CARDBUS_CIS" },
233 { 0, 0x2c, 4, "SUBSYSTEM_VENDOR_ID" },
234 { 0, 0x2e, 2, "SUBSYSTEM_ID" },
235 { 0, 0x30, 4, "ROM_ADDRESS" },
236 { 0, 0x3c, 1, "INTERRUPT_LINE" },
237 { 0, 0x3d, 1, "INTERRUPT_PIN" },
238 { 0, 0x3e, 1, "MIN_GNT" },
239 { 0, 0x3f, 1, "MAX_LAT" },
240 { 0, 0x18, 1, "PRIMARY_BUS" },
241 { 0, 0x19, 1, "SECONDARY_BUS" },
242 { 0, 0x1a, 1, "SUBORDINATE_BUS" },
243 { 0, 0x1b, 1, "SEC_LATENCY_TIMER" },
244 { 0, 0x1c, 1, "IO_BASE" },
245 { 0, 0x1d, 1, "IO_LIMIT" },
246 { 0, 0x1e, 2, "SEC_STATUS" },
247 { 0, 0x20, 2, "MEMORY_BASE" },
248 { 0, 0x22, 2, "MEMORY_LIMIT" },
249 { 0, 0x24, 2, "PREF_MEMORY_BASE" },
250 { 0, 0x26, 2, "PREF_MEMORY_LIMIT" },
251 { 0, 0x28, 4, "PREF_BASE_UPPER32" },
252 { 0, 0x2c, 4, "PREF_LIMIT_UPPER32" },
253 { 0, 0x30, 2, "IO_BASE_UPPER16" },
254 { 0, 0x32, 2, "IO_LIMIT_UPPER16" },
255 { 0, 0x38, 4, "BRIDGE_ROM_ADDRESS" },
256 { 0, 0x3e, 2, "BRIDGE_CONTROL" },
257 { 0, 0x10, 4, "CB_CARDBUS_BASE" },
258 { 0, 0x14, 2, "CB_CAPABILITIES" },
259 { 0, 0x16, 2, "CB_SEC_STATUS" },
260 { 0, 0x18, 1, "CB_BUS_NUMBER" },
261 { 0, 0x19, 1, "CB_CARDBUS_NUMBER" },
262 { 0, 0x1a, 1, "CB_SUBORDINATE_BUS" },
263 { 0, 0x1b, 1, "CB_CARDBUS_LATENCY" },
264 { 0, 0x1c, 4, "CB_MEMORY_BASE_0" },
265 { 0, 0x20, 4, "CB_MEMORY_LIMIT_0" },
266 { 0, 0x24, 4, "CB_MEMORY_BASE_1" },
267 { 0, 0x28, 4, "CB_MEMORY_LIMIT_1" },
268 { 0, 0x2c, 2, "CB_IO_BASE_0" },
269 { 0, 0x2e, 2, "CB_IO_BASE_0_HI" },
270 { 0, 0x30, 2, "CB_IO_LIMIT_0" },
271 { 0, 0x32, 2, "CB_IO_LIMIT_0_HI" },
272 { 0, 0x34, 2, "CB_IO_BASE_1" },
273 { 0, 0x36, 2, "CB_IO_BASE_1_HI" },
274 { 0, 0x38, 2, "CB_IO_LIMIT_1" },
275 { 0, 0x3a, 2, "CB_IO_LIMIT_1_HI" },
276 { 0, 0x40, 2, "CB_SUBSYSTEM_VENDOR_ID" },
277 { 0, 0x42, 2, "CB_SUBSYSTEM_ID" },
278 { 0, 0x44, 4, "CB_LEGACY_MODE_BASE" },
279 { 0x10001, 0, 0, "CAP_PM" },
280 { 0x10002, 0, 0, "CAP_AGP" },
281 { 0x10003, 0, 0, "CAP_VPD" },
282 { 0x10004, 0, 0, "CAP_SLOTID" },
283 { 0x10005, 0, 0, "CAP_MSI" },
284 { 0x10006, 0, 0, "CAP_CHSWP" },
285 { 0x10007, 0, 0, "CAP_PCIX" },
286 { 0x10008, 0, 0, "CAP_HT" },
287 { 0x10009, 0, 0, "CAP_VNDR" },
288 { 0x1000a, 0, 0, "CAP_DBG" },
289 { 0x1000b, 0, 0, "CAP_CCRC" },
290 { 0x1000c, 0, 0, "CAP_HOTPLUG" },
291 { 0x1000d, 0, 0, "CAP_SSVID" },
292 { 0x1000e, 0, 0, "CAP_AGP3" },
293 { 0x1000f, 0, 0, "CAP_SECURE" },
294 { 0x10010, 0, 0, "CAP_EXP" },
295 { 0x10011, 0, 0, "CAP_MSIX" },
296 { 0x10012, 0, 0, "CAP_SATA" },
297 { 0x10013, 0, 0, "CAP_AF" },
298 { 0x20001, 0, 0, "ECAP_AER" },
299 { 0x20002, 0, 0, "ECAP_VC" },
300 { 0x20003, 0, 0, "ECAP_DSN" },
301 { 0x20004, 0, 0, "ECAP_PB" },
302 { 0x20005, 0, 0, "ECAP_RCLINK" },
303 { 0x20006, 0, 0, "ECAP_RCILINK" },
304 { 0x20007, 0, 0, "ECAP_RCECOLL" },
305 { 0x20008, 0, 0, "ECAP_MFVC" },
306 { 0x2000a, 0, 0, "ECAP_RBCB" },
307 { 0x2000b, 0, 0, "ECAP_VNDR" },
308 { 0x2000d, 0, 0, "ECAP_ACS" },
309 { 0x2000e, 0, 0, "ECAP_ARI" },
310 { 0x2000f, 0, 0, "ECAP_ATS" },
311 { 0x20010, 0, 0, "ECAP_SRIOV" },
315 static void NONRET PCI_PRINTF(1,2)
316 usage(char *msg, ...)
322 fprintf(stderr, "setpci: ");
323 vfprintf(stderr, msg, args);
324 fprintf(stderr, "\n\n");
327 "Usage: setpci [<options>] (<device>+ <reg>[=<values>]*)*\n"
330 "-f\t\tDon't complain if there's nothing to do\n"
332 "-D\t\tList changes, don't commit them\n"
334 "PCI access options:\n"
337 "Setting commands:\n"
338 "<device>:\t-s [[[<domain>]:][<bus>]:][<slot>][.[<func>]]\n"
339 "\t\t-d [<vendor>]:[<device>]\n"
340 "<reg>:\t\t<base>[+<offset>][.(B|W|L)]\n"
341 "<base>:\t\t<address>\n"
342 "\t\t<named-register>\n"
343 "\t\t[E]CAP_<capability-name>\n"
344 "\t\t[E]CAP<capability-number>\n"
345 "<values>:\t<value>[,<value>...]\n"
347 "\t\t<hex>:<mask>\n");
352 parse_options(int argc, char **argv)
354 char *opts = GENERIC_OPTIONS;
357 if (argc == 2 && !strcmp(argv[1], "--version"))
359 puts("setpci version " PCIUTILS_VERSION);
363 while (i < argc && argv[i][0] == '-')
365 char *c = argv[i++] + 1;
386 if (e = strchr(opts, *c))
402 if (!parse_generic_option(*e, pacc, arg))
417 static int parse_filter(int argc, char **argv, int i, struct pci_filter *filter)
422 if (!c[1] || !strchr("sd", c[1]))
425 d = (c[2] == '=') ? c+3 : c+2;
433 if (d = pci_filter_parse_slot(filter, d))
437 if (d = pci_filter_parse_id(filter, d))
447 static const struct reg_name *parse_reg_name(char *name)
449 const struct reg_name *r;
451 for (r = pci_reg_names; r->name; r++)
452 if (!strcasecmp(r->name, name))
457 static int parse_x32(char *c, char **stopp, unsigned int *resp)
464 unsigned long int l = strtoul(c, &stop, 16);
480 static void parse_register(struct op *op, char *base)
482 const struct reg_name *r;
484 if (parse_x32(base, NULL, &op->addr) > 0)
489 else if (r = parse_reg_name(base))
492 op->addr = r->offset;
493 if (r->width && !op->width)
494 op->width = r->width;
497 else if (!strncasecmp(base, "CAP", 3))
499 if (parse_x32(base+3, NULL, &op->cap) > 0 && op->cap < 0x100)
506 else if (!strncasecmp(base, "ECAP", 4))
508 if (parse_x32(base+4, NULL, &op->cap) > 0 && op->cap < 0x1000)
515 usage("Unknown register \"%s\"", base);
518 static void parse_op(char *c, struct pci_dev **selected_devices)
520 char *base, *offset, *width, *value;
525 /* Split the argument */
527 if (value = strchr(base, '='))
529 if (width = strchr(base, '.'))
531 if (offset = strchr(base, '+'))
534 /* Look for setting of values and count how many */
539 usage("Missing value");
541 for (e=value; *e; e++)
546 /* Allocate the operation */
547 op = xmalloc(sizeof(struct op) + n*sizeof(struct value));
548 op->dev_vector = selected_devices;
551 /* What is the width suffix? */
555 usage("Invalid width \"%s\"", width);
556 switch (*width & 0xdf)
559 op->width = 1; break;
561 op->width = 2; break;
563 op->width = 4; break;
565 usage("Invalid width \"%c\"", *width);
571 /* Find the register */
572 parse_register(op, base);
574 usage("Missing width");
580 if (parse_x32(offset, NULL, &off) <= 0 || off >= 0x1000)
581 die("Invalid offset \"%s\"", offset);
586 if (op->addr >= 0x1000 || op->addr + op->width*(n ? n : 1) > 0x1000)
587 die("Register number out of range!");
588 if (op->addr & (op->width - 1))
589 die("Unaligned register address!");
591 /* Parse the values */
594 unsigned int ll, lim;
595 e = strchr(value, ',');
598 if (parse_x32(value, &f, &ll) < 0 || *f && *f != ':')
599 usage("Invalid value \"%s\"", value);
600 lim = max_values[op->width];
601 if (ll > lim && ll < ~0UL - lim)
602 usage("Value \"%s\" is out of range", value);
603 op->values[j].value = ll;
606 if (parse_x32(f+1, NULL, &ll) <= 0)
607 usage("Invalid mask \"%s\"", f+1);
608 if (ll > lim && ll < ~0UL - lim)
609 usage("Mask \"%s\" is out of range", f+1);
610 op->values[j].mask = ll;
611 op->values[j].value &= ll;
614 op->values[j].mask = ~0U;
623 static void parse_ops(int argc, char **argv, int i)
625 enum { STATE_INIT, STATE_GOT_FILTER, STATE_GOT_OP } state = STATE_INIT;
626 struct pci_filter filter;
627 struct pci_dev **selected_devices = NULL;
635 if (state != STATE_GOT_FILTER)
636 pci_filter_init(pacc, &filter);
637 i = parse_filter(argc, argv, i-1, &filter);
638 state = STATE_GOT_FILTER;
642 if (state == STATE_INIT)
644 if (state == STATE_GOT_FILTER)
645 selected_devices = select_devices(&filter);
646 if (!selected_devices[0] && !force)
647 fprintf(stderr, "setpci: Warning: No devices selected for `%s'.\n", c);
648 parse_op(c, selected_devices);
649 state = STATE_GOT_OP;
652 if (state == STATE_INIT)
653 usage("No operation specified");
657 main(int argc, char **argv)
663 i = parse_options(argc, argv);
668 parse_ops(argc, argv, i);