pciconf.c revision 294289
1/* 2 * Copyright 1996 Massachusetts Institute of Technology 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose and without fee is hereby 6 * granted, provided that both the above copyright notice and this 7 * permission notice appear in all copies, that both the above 8 * copyright notice and this permission notice appear in all 9 * supporting documentation, and that the name of M.I.T. not be used 10 * in advertising or publicity pertaining to distribution of the 11 * software without specific, written prior permission. M.I.T. makes 12 * no representations about the suitability of this software for any 13 * purpose. It is provided "as is" without express or implied 14 * warranty. 15 * 16 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 17 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 20 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#ifndef lint 31static const char rcsid[] = 32 "$FreeBSD: stable/10/usr.sbin/pciconf/pciconf.c 294289 2016-01-18 19:52:20Z jhb $"; 33#endif /* not lint */ 34 35#include <sys/types.h> 36#include <sys/fcntl.h> 37 38#include <assert.h> 39#include <ctype.h> 40#include <err.h> 41#include <inttypes.h> 42#include <stdbool.h> 43#include <stdlib.h> 44#include <stdio.h> 45#include <string.h> 46#include <unistd.h> 47#include <sys/pciio.h> 48#include <sys/queue.h> 49 50#include <dev/pci/pcireg.h> 51 52#include "pathnames.h" 53#include "pciconf.h" 54 55struct pci_device_info 56{ 57 TAILQ_ENTRY(pci_device_info) link; 58 int id; 59 char *desc; 60}; 61 62struct pci_vendor_info 63{ 64 TAILQ_ENTRY(pci_vendor_info) link; 65 TAILQ_HEAD(,pci_device_info) devs; 66 int id; 67 char *desc; 68}; 69 70TAILQ_HEAD(,pci_vendor_info) pci_vendors; 71 72static struct pcisel getsel(const char *str); 73static void list_bridge(int fd, struct pci_conf *p); 74static void list_bars(int fd, struct pci_conf *p); 75static void list_devs(const char *name, int verbose, int bars, int bridge, 76 int caps, int errors, int vpd); 77static void list_verbose(struct pci_conf *p); 78static void list_vpd(int fd, struct pci_conf *p); 79static const char *guess_class(struct pci_conf *p); 80static const char *guess_subclass(struct pci_conf *p); 81static int load_vendors(void); 82static void readit(const char *, const char *, int); 83static void writeit(const char *, const char *, const char *, int); 84static void chkattached(const char *); 85 86static int exitstatus = 0; 87 88static void 89usage(void) 90{ 91 fprintf(stderr, "%s\n%s\n%s\n%s\n", 92 "usage: pciconf -l [-BbcevV] [device]", 93 " pciconf -a device", 94 " pciconf -r [-b | -h] device addr[:addr2]", 95 " pciconf -w [-b | -h] device addr value"); 96 exit (1); 97} 98 99int 100main(int argc, char **argv) 101{ 102 int c; 103 int listmode, readmode, writemode, attachedmode; 104 int bars, bridge, caps, errors, verbose, vpd; 105 int byte, isshort; 106 107 listmode = readmode = writemode = attachedmode = 0; 108 bars = bridge = caps = errors = verbose = vpd = byte = isshort = 0; 109 110 while ((c = getopt(argc, argv, "aBbcehlrwVv")) != -1) { 111 switch(c) { 112 case 'a': 113 attachedmode = 1; 114 break; 115 116 case 'B': 117 bridge = 1; 118 break; 119 120 case 'b': 121 bars = 1; 122 byte = 1; 123 break; 124 125 case 'c': 126 caps = 1; 127 break; 128 129 case 'e': 130 errors = 1; 131 break; 132 133 case 'h': 134 isshort = 1; 135 break; 136 137 case 'l': 138 listmode = 1; 139 break; 140 141 case 'r': 142 readmode = 1; 143 break; 144 145 case 'w': 146 writemode = 1; 147 break; 148 149 case 'v': 150 verbose = 1; 151 break; 152 153 case 'V': 154 vpd = 1; 155 break; 156 157 default: 158 usage(); 159 } 160 } 161 162 if ((listmode && optind >= argc + 1) 163 || (writemode && optind + 3 != argc) 164 || (readmode && optind + 2 != argc) 165 || (attachedmode && optind + 1 != argc)) 166 usage(); 167 168 if (listmode) { 169 list_devs(optind + 1 == argc ? argv[optind] : NULL, verbose, 170 bars, bridge, caps, errors, vpd); 171 } else if (attachedmode) { 172 chkattached(argv[optind]); 173 } else if (readmode) { 174 readit(argv[optind], argv[optind + 1], 175 byte ? 1 : isshort ? 2 : 4); 176 } else if (writemode) { 177 writeit(argv[optind], argv[optind + 1], argv[optind + 2], 178 byte ? 1 : isshort ? 2 : 4); 179 } else { 180 usage(); 181 } 182 183 return exitstatus; 184} 185 186static void 187list_devs(const char *name, int verbose, int bars, int bridge, int caps, 188 int errors, int vpd) 189{ 190 int fd; 191 struct pci_conf_io pc; 192 struct pci_conf conf[255], *p; 193 struct pci_match_conf patterns[1]; 194 int none_count = 0; 195 196 if (verbose) 197 load_vendors(); 198 199 fd = open(_PATH_DEVPCI, (bridge || caps || errors) ? O_RDWR : O_RDONLY, 200 0); 201 if (fd < 0) 202 err(1, "%s", _PATH_DEVPCI); 203 204 bzero(&pc, sizeof(struct pci_conf_io)); 205 pc.match_buf_len = sizeof(conf); 206 pc.matches = conf; 207 if (name != NULL) { 208 bzero(&patterns, sizeof(patterns)); 209 patterns[0].pc_sel = getsel(name); 210 patterns[0].flags = PCI_GETCONF_MATCH_DOMAIN | 211 PCI_GETCONF_MATCH_BUS | PCI_GETCONF_MATCH_DEV | 212 PCI_GETCONF_MATCH_FUNC; 213 pc.num_patterns = 1; 214 pc.pat_buf_len = sizeof(patterns); 215 pc.patterns = patterns; 216 } 217 218 do { 219 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 220 err(1, "ioctl(PCIOCGETCONF)"); 221 222 /* 223 * 255 entries should be more than enough for most people, 224 * but if someone has more devices, and then changes things 225 * around between ioctls, we'll do the cheesy thing and 226 * just bail. The alternative would be to go back to the 227 * beginning of the list, and print things twice, which may 228 * not be desirable. 229 */ 230 if (pc.status == PCI_GETCONF_LIST_CHANGED) { 231 warnx("PCI device list changed, please try again"); 232 exitstatus = 1; 233 close(fd); 234 return; 235 } else if (pc.status == PCI_GETCONF_ERROR) { 236 warnx("error returned from PCIOCGETCONF ioctl"); 237 exitstatus = 1; 238 close(fd); 239 return; 240 } 241 for (p = conf; p < &conf[pc.num_matches]; p++) { 242 printf("%s%d@pci%d:%d:%d:%d:\tclass=0x%06x card=0x%08x " 243 "chip=0x%08x rev=0x%02x hdr=0x%02x\n", 244 (p->pd_name && *p->pd_name) ? p->pd_name : 245 "none", 246 (p->pd_name && *p->pd_name) ? (int)p->pd_unit : 247 none_count++, p->pc_sel.pc_domain, 248 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 249 p->pc_sel.pc_func, (p->pc_class << 16) | 250 (p->pc_subclass << 8) | p->pc_progif, 251 (p->pc_subdevice << 16) | p->pc_subvendor, 252 (p->pc_device << 16) | p->pc_vendor, 253 p->pc_revid, p->pc_hdr); 254 if (verbose) 255 list_verbose(p); 256 if (bars) 257 list_bars(fd, p); 258 if (bridge) 259 list_bridge(fd, p); 260 if (caps) 261 list_caps(fd, p); 262 if (errors) 263 list_errors(fd, p); 264 if (vpd) 265 list_vpd(fd, p); 266 } 267 } while (pc.status == PCI_GETCONF_MORE_DEVS); 268 269 close(fd); 270} 271 272static void 273print_bus_range(int fd, struct pci_conf *p, int secreg, int subreg) 274{ 275 uint8_t secbus, subbus; 276 277 secbus = read_config(fd, &p->pc_sel, secreg, 1); 278 subbus = read_config(fd, &p->pc_sel, subreg, 1); 279 printf(" bus range = %u-%u\n", secbus, subbus); 280} 281 282static void 283print_window(int reg, const char *type, int range, uint64_t base, 284 uint64_t limit) 285{ 286 287 printf(" window[%02x] = type %s, range %2d, addr %#jx-%#jx, %s\n", 288 reg, type, range, (uintmax_t)base, (uintmax_t)limit, 289 base < limit ? "enabled" : "disabled"); 290} 291 292static void 293print_special_decode(bool isa, bool vga, bool subtractive) 294{ 295 bool comma; 296 297 if (isa || vga || subtractive) { 298 comma = false; 299 printf(" decode = "); 300 if (isa) { 301 printf("ISA"); 302 comma = true; 303 } 304 if (vga) { 305 printf("%sVGA", comma ? ", " : ""); 306 comma = true; 307 } 308 if (subtractive) 309 printf("%ssubtractive", comma ? ", " : ""); 310 printf("\n"); 311 } 312} 313 314static void 315print_bridge_windows(int fd, struct pci_conf *p) 316{ 317 uint64_t base, limit; 318 uint32_t val; 319 uint16_t bctl; 320 bool subtractive; 321 int range; 322 323 /* 324 * XXX: This assumes that a window with a base and limit of 0 325 * is not implemented. In theory a window might be programmed 326 * at the smallest size with a base of 0, but those do not seem 327 * common in practice. 328 */ 329 val = read_config(fd, &p->pc_sel, PCIR_IOBASEL_1, 1); 330 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1) != 0) { 331 if ((val & PCIM_BRIO_MASK) == PCIM_BRIO_32) { 332 base = PCI_PPBIOBASE( 333 read_config(fd, &p->pc_sel, PCIR_IOBASEH_1, 2), 334 val); 335 limit = PCI_PPBIOLIMIT( 336 read_config(fd, &p->pc_sel, PCIR_IOLIMITH_1, 2), 337 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 338 range = 32; 339 } else { 340 base = PCI_PPBIOBASE(0, val); 341 limit = PCI_PPBIOLIMIT(0, 342 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 343 range = 16; 344 } 345 print_window(PCIR_IOBASEL_1, "I/O Port", range, base, limit); 346 } 347 348 base = PCI_PPBMEMBASE(0, 349 read_config(fd, &p->pc_sel, PCIR_MEMBASE_1, 2)); 350 limit = PCI_PPBMEMLIMIT(0, 351 read_config(fd, &p->pc_sel, PCIR_MEMLIMIT_1, 2)); 352 print_window(PCIR_MEMBASE_1, "Memory", 32, base, limit); 353 354 val = read_config(fd, &p->pc_sel, PCIR_PMBASEL_1, 2); 355 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2) != 0) { 356 if ((val & PCIM_BRPM_MASK) == PCIM_BRPM_64) { 357 base = PCI_PPBMEMBASE( 358 read_config(fd, &p->pc_sel, PCIR_PMBASEH_1, 4), 359 val); 360 limit = PCI_PPBMEMLIMIT( 361 read_config(fd, &p->pc_sel, PCIR_PMLIMITH_1, 4), 362 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 363 range = 64; 364 } else { 365 base = PCI_PPBMEMBASE(0, val); 366 limit = PCI_PPBMEMLIMIT(0, 367 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 368 range = 32; 369 } 370 print_window(PCIR_PMBASEL_1, "Prefetchable Memory", range, base, 371 limit); 372 } 373 374 /* 375 * XXX: This list of bridges that are subtractive but do not set 376 * progif to indicate it is copied from pci_pci.c. 377 */ 378 subtractive = p->pc_progif == PCIP_BRIDGE_PCI_SUBTRACTIVE; 379 switch (p->pc_device << 16 | p->pc_vendor) { 380 case 0xa002177d: /* Cavium ThunderX */ 381 case 0x124b8086: /* Intel 82380FB Mobile */ 382 case 0x060513d7: /* Toshiba ???? */ 383 subtractive = true; 384 } 385 if (p->pc_vendor == 0x8086 && (p->pc_device & 0xff00) == 0x2400) 386 subtractive = true; 387 388 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_1, 2); 389 print_special_decode(bctl & PCIB_BCR_ISA_ENABLE, 390 bctl & PCIB_BCR_VGA_ENABLE, subtractive); 391} 392 393static void 394print_cardbus_mem_window(int fd, struct pci_conf *p, int basereg, int limitreg, 395 bool prefetch) 396{ 397 398 print_window(basereg, prefetch ? "Prefetchable Memory" : "Memory", 32, 399 PCI_CBBMEMBASE(read_config(fd, &p->pc_sel, basereg, 4)), 400 PCI_CBBMEMLIMIT(read_config(fd, &p->pc_sel, limitreg, 4))); 401} 402 403static void 404print_cardbus_io_window(int fd, struct pci_conf *p, int basereg, int limitreg) 405{ 406 uint32_t base, limit; 407 uint32_t val; 408 int range; 409 410 val = read_config(fd, &p->pc_sel, basereg, 2); 411 if ((val & PCIM_CBBIO_MASK) == PCIM_CBBIO_32) { 412 base = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, basereg, 4)); 413 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 4)); 414 range = 32; 415 } else { 416 base = PCI_CBBIOBASE(val); 417 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 2)); 418 range = 16; 419 } 420 print_window(basereg, "I/O Port", range, base, limit); 421} 422 423static void 424print_cardbus_windows(int fd, struct pci_conf *p) 425{ 426 uint16_t bctl; 427 428 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_2, 2); 429 print_cardbus_mem_window(fd, p, PCIR_MEMBASE0_2, PCIR_MEMLIMIT0_2, 430 bctl & CBB_BCR_PREFETCH_0_ENABLE); 431 print_cardbus_mem_window(fd, p, PCIR_MEMBASE1_2, PCIR_MEMLIMIT1_2, 432 bctl & CBB_BCR_PREFETCH_1_ENABLE); 433 print_cardbus_io_window(fd, p, PCIR_IOBASE0_2, PCIR_IOLIMIT0_2); 434 print_cardbus_io_window(fd, p, PCIR_IOBASE1_2, PCIR_IOLIMIT1_2); 435 print_special_decode(bctl & CBB_BCR_ISA_ENABLE, 436 bctl & CBB_BCR_VGA_ENABLE, false); 437} 438 439static void 440list_bridge(int fd, struct pci_conf *p) 441{ 442 443 switch (p->pc_hdr & PCIM_HDRTYPE) { 444 case PCIM_HDRTYPE_BRIDGE: 445 print_bus_range(fd, p, PCIR_SECBUS_1, PCIR_SUBBUS_1); 446 print_bridge_windows(fd, p); 447 break; 448 case PCIM_HDRTYPE_CARDBUS: 449 print_bus_range(fd, p, PCIR_SECBUS_2, PCIR_SUBBUS_2); 450 print_cardbus_windows(fd, p); 451 break; 452 } 453} 454 455static void 456list_bars(int fd, struct pci_conf *p) 457{ 458 struct pci_bar_io bar; 459 uint64_t base; 460 const char *type; 461 int i, range, max; 462 463 switch (p->pc_hdr & PCIM_HDRTYPE) { 464 case PCIM_HDRTYPE_NORMAL: 465 max = PCIR_MAX_BAR_0; 466 break; 467 case PCIM_HDRTYPE_BRIDGE: 468 max = PCIR_MAX_BAR_1; 469 break; 470 case PCIM_HDRTYPE_CARDBUS: 471 max = PCIR_MAX_BAR_2; 472 break; 473 default: 474 return; 475 } 476 477 for (i = 0; i <= max; i++) { 478 bar.pbi_sel = p->pc_sel; 479 bar.pbi_reg = PCIR_BAR(i); 480 if (ioctl(fd, PCIOCGETBAR, &bar) < 0) 481 continue; 482 if (PCI_BAR_IO(bar.pbi_base)) { 483 type = "I/O Port"; 484 range = 32; 485 base = bar.pbi_base & PCIM_BAR_IO_BASE; 486 } else { 487 if (bar.pbi_base & PCIM_BAR_MEM_PREFETCH) 488 type = "Prefetchable Memory"; 489 else 490 type = "Memory"; 491 switch (bar.pbi_base & PCIM_BAR_MEM_TYPE) { 492 case PCIM_BAR_MEM_32: 493 range = 32; 494 break; 495 case PCIM_BAR_MEM_1MB: 496 range = 20; 497 break; 498 case PCIM_BAR_MEM_64: 499 range = 64; 500 break; 501 default: 502 range = -1; 503 } 504 base = bar.pbi_base & ~((uint64_t)0xf); 505 } 506 printf(" bar [%02x] = type %s, range %2d, base %#jx, ", 507 PCIR_BAR(i), type, range, (uintmax_t)base); 508 printf("size %ju, %s\n", (uintmax_t)bar.pbi_length, 509 bar.pbi_enabled ? "enabled" : "disabled"); 510 } 511} 512 513static void 514list_verbose(struct pci_conf *p) 515{ 516 struct pci_vendor_info *vi; 517 struct pci_device_info *di; 518 const char *dp; 519 520 TAILQ_FOREACH(vi, &pci_vendors, link) { 521 if (vi->id == p->pc_vendor) { 522 printf(" vendor = '%s'\n", vi->desc); 523 break; 524 } 525 } 526 if (vi == NULL) { 527 di = NULL; 528 } else { 529 TAILQ_FOREACH(di, &vi->devs, link) { 530 if (di->id == p->pc_device) { 531 printf(" device = '%s'\n", di->desc); 532 break; 533 } 534 } 535 } 536 if ((dp = guess_class(p)) != NULL) 537 printf(" class = %s\n", dp); 538 if ((dp = guess_subclass(p)) != NULL) 539 printf(" subclass = %s\n", dp); 540} 541 542static void 543list_vpd(int fd, struct pci_conf *p) 544{ 545 struct pci_list_vpd_io list; 546 struct pci_vpd_element *vpd, *end; 547 548 list.plvi_sel = p->pc_sel; 549 list.plvi_len = 0; 550 list.plvi_data = NULL; 551 if (ioctl(fd, PCIOCLISTVPD, &list) < 0 || list.plvi_len == 0) 552 return; 553 554 list.plvi_data = malloc(list.plvi_len); 555 if (ioctl(fd, PCIOCLISTVPD, &list) < 0) { 556 free(list.plvi_data); 557 return; 558 } 559 560 vpd = list.plvi_data; 561 end = (struct pci_vpd_element *)((char *)vpd + list.plvi_len); 562 for (; vpd < end; vpd = PVE_NEXT(vpd)) { 563 if (vpd->pve_flags == PVE_FLAG_IDENT) { 564 printf(" VPD ident = '%.*s'\n", 565 (int)vpd->pve_datalen, vpd->pve_data); 566 continue; 567 } 568 569 /* Ignore the checksum keyword. */ 570 if (!(vpd->pve_flags & PVE_FLAG_RW) && 571 memcmp(vpd->pve_keyword, "RV", 2) == 0) 572 continue; 573 574 /* Ignore remaining read-write space. */ 575 if (vpd->pve_flags & PVE_FLAG_RW && 576 memcmp(vpd->pve_keyword, "RW", 2) == 0) 577 continue; 578 579 /* Handle extended capability keyword. */ 580 if (!(vpd->pve_flags & PVE_FLAG_RW) && 581 memcmp(vpd->pve_keyword, "CP", 2) == 0) { 582 printf(" VPD ro CP = ID %02x in map 0x%x[0x%x]\n", 583 (unsigned int)vpd->pve_data[0], 584 PCIR_BAR((unsigned int)vpd->pve_data[1]), 585 (unsigned int)vpd->pve_data[3] << 8 | 586 (unsigned int)vpd->pve_data[2]); 587 continue; 588 } 589 590 /* Remaining keywords should all have ASCII values. */ 591 printf(" VPD %s %c%c = '%.*s'\n", 592 vpd->pve_flags & PVE_FLAG_RW ? "rw" : "ro", 593 vpd->pve_keyword[0], vpd->pve_keyword[1], 594 (int)vpd->pve_datalen, vpd->pve_data); 595 } 596 free(list.plvi_data); 597} 598 599/* 600 * This is a direct cut-and-paste from the table in sys/dev/pci/pci.c. 601 */ 602static struct 603{ 604 int class; 605 int subclass; 606 const char *desc; 607} pci_nomatch_tab[] = { 608 {PCIC_OLD, -1, "old"}, 609 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"}, 610 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"}, 611 {PCIC_STORAGE, -1, "mass storage"}, 612 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"}, 613 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"}, 614 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"}, 615 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"}, 616 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"}, 617 {PCIC_STORAGE, PCIS_STORAGE_ATA_ADMA, "ATA (ADMA)"}, 618 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"}, 619 {PCIC_STORAGE, PCIS_STORAGE_SAS, "SAS"}, 620 {PCIC_STORAGE, PCIS_STORAGE_NVM, "NVM"}, 621 {PCIC_NETWORK, -1, "network"}, 622 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"}, 623 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"}, 624 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"}, 625 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"}, 626 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"}, 627 {PCIC_DISPLAY, -1, "display"}, 628 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"}, 629 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"}, 630 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"}, 631 {PCIC_MULTIMEDIA, -1, "multimedia"}, 632 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"}, 633 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"}, 634 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TELE, "telephony"}, 635 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_HDA, "HDA"}, 636 {PCIC_MEMORY, -1, "memory"}, 637 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"}, 638 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"}, 639 {PCIC_BRIDGE, -1, "bridge"}, 640 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"}, 641 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"}, 642 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"}, 643 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"}, 644 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"}, 645 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"}, 646 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"}, 647 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"}, 648 {PCIC_BRIDGE, PCIS_BRIDGE_RACEWAY, "PCI-RACEway"}, 649 {PCIC_SIMPLECOMM, -1, "simple comms"}, 650 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */ 651 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"}, 652 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULSER, "multiport serial"}, 653 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"}, 654 {PCIC_BASEPERIPH, -1, "base peripheral"}, 655 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"}, 656 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"}, 657 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"}, 658 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"}, 659 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PCIHOT, "PCI hot-plug controller"}, 660 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_SDHC, "SD host controller"}, 661 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_IOMMU, "IOMMU"}, 662 {PCIC_INPUTDEV, -1, "input device"}, 663 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"}, 664 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"}, 665 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"}, 666 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"}, 667 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"}, 668 {PCIC_DOCKING, -1, "docking station"}, 669 {PCIC_PROCESSOR, -1, "processor"}, 670 {PCIC_SERIALBUS, -1, "serial bus"}, 671 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"}, 672 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"}, 673 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"}, 674 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"}, 675 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"}, 676 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"}, 677 {PCIC_WIRELESS, -1, "wireless controller"}, 678 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"}, 679 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "IR"}, 680 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF"}, 681 {PCIC_INTELLIIO, -1, "intelligent I/O controller"}, 682 {PCIC_INTELLIIO, PCIS_INTELLIIO_I2O, "I2O"}, 683 {PCIC_SATCOM, -1, "satellite communication"}, 684 {PCIC_SATCOM, PCIS_SATCOM_TV, "sat TV"}, 685 {PCIC_SATCOM, PCIS_SATCOM_AUDIO, "sat audio"}, 686 {PCIC_SATCOM, PCIS_SATCOM_VOICE, "sat voice"}, 687 {PCIC_SATCOM, PCIS_SATCOM_DATA, "sat data"}, 688 {PCIC_CRYPTO, -1, "encrypt/decrypt"}, 689 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "network/computer crypto"}, 690 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "entertainment crypto"}, 691 {PCIC_DASP, -1, "dasp"}, 692 {PCIC_DASP, PCIS_DASP_DPIO, "DPIO module"}, 693 {0, 0, NULL} 694}; 695 696static const char * 697guess_class(struct pci_conf *p) 698{ 699 int i; 700 701 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 702 if (pci_nomatch_tab[i].class == p->pc_class) 703 return(pci_nomatch_tab[i].desc); 704 } 705 return(NULL); 706} 707 708static const char * 709guess_subclass(struct pci_conf *p) 710{ 711 int i; 712 713 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 714 if ((pci_nomatch_tab[i].class == p->pc_class) && 715 (pci_nomatch_tab[i].subclass == p->pc_subclass)) 716 return(pci_nomatch_tab[i].desc); 717 } 718 return(NULL); 719} 720 721static int 722load_vendors(void) 723{ 724 const char *dbf; 725 FILE *db; 726 struct pci_vendor_info *cv; 727 struct pci_device_info *cd; 728 char buf[1024], str[1024]; 729 char *ch; 730 int id, error; 731 732 /* 733 * Locate the database and initialise. 734 */ 735 TAILQ_INIT(&pci_vendors); 736 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL) 737 dbf = _PATH_LPCIVDB; 738 if ((db = fopen(dbf, "r")) == NULL) { 739 dbf = _PATH_PCIVDB; 740 if ((db = fopen(dbf, "r")) == NULL) 741 return(1); 742 } 743 cv = NULL; 744 cd = NULL; 745 error = 0; 746 747 /* 748 * Scan input lines from the database 749 */ 750 for (;;) { 751 if (fgets(buf, sizeof(buf), db) == NULL) 752 break; 753 754 if ((ch = strchr(buf, '#')) != NULL) 755 *ch = '\0'; 756 ch = strchr(buf, '\0') - 1; 757 while (ch > buf && isspace(*ch)) 758 *ch-- = '\0'; 759 if (ch <= buf) 760 continue; 761 762 /* Can't handle subvendor / subdevice entries yet */ 763 if (buf[0] == '\t' && buf[1] == '\t') 764 continue; 765 766 /* Check for vendor entry */ 767 if (buf[0] != '\t' && sscanf(buf, "%04x %[^\n]", &id, str) == 2) { 768 if ((id == 0) || (strlen(str) < 1)) 769 continue; 770 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) { 771 warn("allocating vendor entry"); 772 error = 1; 773 break; 774 } 775 if ((cv->desc = strdup(str)) == NULL) { 776 free(cv); 777 warn("allocating vendor description"); 778 error = 1; 779 break; 780 } 781 cv->id = id; 782 TAILQ_INIT(&cv->devs); 783 TAILQ_INSERT_TAIL(&pci_vendors, cv, link); 784 continue; 785 } 786 787 /* Check for device entry */ 788 if (buf[0] == '\t' && sscanf(buf + 1, "%04x %[^\n]", &id, str) == 2) { 789 if ((id == 0) || (strlen(str) < 1)) 790 continue; 791 if (cv == NULL) { 792 warnx("device entry with no vendor!"); 793 continue; 794 } 795 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) { 796 warn("allocating device entry"); 797 error = 1; 798 break; 799 } 800 if ((cd->desc = strdup(str)) == NULL) { 801 free(cd); 802 warn("allocating device description"); 803 error = 1; 804 break; 805 } 806 cd->id = id; 807 TAILQ_INSERT_TAIL(&cv->devs, cd, link); 808 continue; 809 } 810 811 /* It's a comment or junk, ignore it */ 812 } 813 if (ferror(db)) 814 error = 1; 815 fclose(db); 816 817 return(error); 818} 819 820uint32_t 821read_config(int fd, struct pcisel *sel, long reg, int width) 822{ 823 struct pci_io pi; 824 825 pi.pi_sel = *sel; 826 pi.pi_reg = reg; 827 pi.pi_width = width; 828 829 if (ioctl(fd, PCIOCREAD, &pi) < 0) 830 err(1, "ioctl(PCIOCREAD)"); 831 832 return (pi.pi_data); 833} 834 835static struct pcisel 836getdevice(const char *name) 837{ 838 struct pci_conf_io pc; 839 struct pci_conf conf[1]; 840 struct pci_match_conf patterns[1]; 841 char *cp; 842 int fd; 843 844 fd = open(_PATH_DEVPCI, O_RDONLY, 0); 845 if (fd < 0) 846 err(1, "%s", _PATH_DEVPCI); 847 848 bzero(&pc, sizeof(struct pci_conf_io)); 849 pc.match_buf_len = sizeof(conf); 850 pc.matches = conf; 851 852 bzero(&patterns, sizeof(patterns)); 853 854 /* 855 * The pattern structure requires the unit to be split out from 856 * the driver name. Walk backwards from the end of the name to 857 * find the start of the unit. 858 */ 859 if (name[0] == '\0') 860 errx(1, "Empty device name"); 861 cp = strchr(name, '\0'); 862 assert(cp != NULL && cp != name); 863 cp--; 864 while (cp != name && isdigit(cp[-1])) 865 cp--; 866 if (cp == name || !isdigit(*cp)) 867 errx(1, "Invalid device name"); 868 if ((size_t)(cp - name) + 1 > sizeof(patterns[0].pd_name)) 869 errx(1, "Device name is too long"); 870 memcpy(patterns[0].pd_name, name, cp - name); 871 patterns[0].pd_unit = strtol(cp, &cp, 10); 872 assert(*cp == '\0'); 873 patterns[0].flags = PCI_GETCONF_MATCH_NAME | PCI_GETCONF_MATCH_UNIT; 874 pc.num_patterns = 1; 875 pc.pat_buf_len = sizeof(patterns); 876 pc.patterns = patterns; 877 878 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 879 err(1, "ioctl(PCIOCGETCONF)"); 880 if (pc.status != PCI_GETCONF_LAST_DEVICE && 881 pc.status != PCI_GETCONF_MORE_DEVS) 882 errx(1, "error returned from PCIOCGETCONF ioctl"); 883 close(fd); 884 if (pc.num_matches == 0) 885 errx(1, "Device not found"); 886 return (conf[0].pc_sel); 887} 888 889static struct pcisel 890parsesel(const char *str) 891{ 892 char *ep = strchr(str, '@'); 893 char *epbase; 894 struct pcisel sel; 895 unsigned long selarr[4]; 896 int i; 897 898 if (ep == NULL) 899 ep = (char *)str; 900 else 901 ep++; 902 903 epbase = ep; 904 905 if (strncmp(ep, "pci", 3) == 0) { 906 ep += 3; 907 i = 0; 908 do { 909 selarr[i++] = strtoul(ep, &ep, 10); 910 } while ((*ep == ':' || *ep == '.') && *++ep != '\0' && i < 4); 911 912 if (i > 2) 913 sel.pc_func = selarr[--i]; 914 else 915 sel.pc_func = 0; 916 sel.pc_dev = selarr[--i]; 917 sel.pc_bus = selarr[--i]; 918 if (i > 0) 919 sel.pc_domain = selarr[--i]; 920 else 921 sel.pc_domain = 0; 922 } 923 if (*ep != '\x0' || ep == epbase) 924 errx(1, "cannot parse selector %s", str); 925 return sel; 926} 927 928static struct pcisel 929getsel(const char *str) 930{ 931 932 /* 933 * No device names contain colons and selectors always contain 934 * at least one colon. 935 */ 936 if (strchr(str, ':') == NULL) 937 return (getdevice(str)); 938 else 939 return (parsesel(str)); 940} 941 942static void 943readone(int fd, struct pcisel *sel, long reg, int width) 944{ 945 946 printf("%0*x", width*2, read_config(fd, sel, reg, width)); 947} 948 949static void 950readit(const char *name, const char *reg, int width) 951{ 952 long rstart; 953 long rend; 954 long r; 955 char *end; 956 int i; 957 int fd; 958 struct pcisel sel; 959 960 fd = open(_PATH_DEVPCI, O_RDWR, 0); 961 if (fd < 0) 962 err(1, "%s", _PATH_DEVPCI); 963 964 rend = rstart = strtol(reg, &end, 0); 965 if (end && *end == ':') { 966 end++; 967 rend = strtol(end, (char **) 0, 0); 968 } 969 sel = getsel(name); 970 for (i = 1, r = rstart; r <= rend; i++, r += width) { 971 readone(fd, &sel, r, width); 972 if (i && !(i % 8)) 973 putchar(' '); 974 putchar(i % (16/width) ? ' ' : '\n'); 975 } 976 if (i % (16/width) != 1) 977 putchar('\n'); 978 close(fd); 979} 980 981static void 982writeit(const char *name, const char *reg, const char *data, int width) 983{ 984 int fd; 985 struct pci_io pi; 986 987 pi.pi_sel = getsel(name); 988 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */ 989 pi.pi_width = width; 990 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */ 991 992 fd = open(_PATH_DEVPCI, O_RDWR, 0); 993 if (fd < 0) 994 err(1, "%s", _PATH_DEVPCI); 995 996 if (ioctl(fd, PCIOCWRITE, &pi) < 0) 997 err(1, "ioctl(PCIOCWRITE)"); 998} 999 1000static void 1001chkattached(const char *name) 1002{ 1003 int fd; 1004 struct pci_io pi; 1005 1006 pi.pi_sel = getsel(name); 1007 1008 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1009 if (fd < 0) 1010 err(1, "%s", _PATH_DEVPCI); 1011 1012 if (ioctl(fd, PCIOCATTACHED, &pi) < 0) 1013 err(1, "ioctl(PCIOCATTACHED)"); 1014 1015 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */ 1016 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached"); 1017} 1018