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 * $FreeBSD: src/usr.sbin/pciconf/pciconf.c,v 1.30.2.3.2.1 2009/04/15 03:14:26 kensmith Exp $ 30 * $DragonFly: src/usr.sbin/pciconf/pciconf.c,v 1.6 2005/01/01 22:06:25 cpressey Exp $ 31 */ 32 33 #include <sys/types.h> 34 #include <sys/fcntl.h> 35 36 #include <ctype.h> 37 #include <err.h> 38 #include <stdlib.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <sys/pciio.h> 43 #include <sys/queue.h> 44 45 #include <bus/pci/pcireg.h> 46 47 #include "pathnames.h" 48 #include "pciconf.h" 49 50 struct pci_device_info 51 { 52 TAILQ_ENTRY(pci_device_info) link; 53 int id; 54 char *desc; 55 }; 56 57 struct pci_vendor_info 58 { 59 TAILQ_ENTRY(pci_vendor_info) link; 60 TAILQ_HEAD(,pci_device_info) devs; 61 int id; 62 char *desc; 63 }; 64 65 TAILQ_HEAD(,pci_vendor_info) pci_vendors; 66 67 static void list_bars(int fd, struct pci_conf *p); 68 static void list_devs(int verbose, int bars, int caps); 69 static void list_verbose(struct pci_conf *p); 70 static const char *guess_class(struct pci_conf *p); 71 static const char *guess_subclass(struct pci_conf *p); 72 static int load_vendors(void); 73 static void readit(const char *, const char *, int); 74 static void writeit(const char *, const char *, const char *, int); 75 static void chkattached(const char *, int); 76 77 static int exitstatus = 0; 78 79 static void 80 usage(void) 81 { 82 fprintf(stderr, "%s\n%s\n%s\n%s\n", 83 "usage: pciconf -l [-bcv]", 84 " pciconf -a selector", 85 " pciconf -r [-b | -h] selector addr[:addr2]", 86 " pciconf -w [-b | -h] selector addr value"); 87 exit (1); 88 } 89 90 int 91 main(int argc, char **argv) 92 { 93 int c; 94 int listmode, readmode, writemode, attachedmode, bars, caps, verbose; 95 int byte, isshort; 96 97 listmode = readmode = writemode = attachedmode = bars = caps = verbose = byte = isshort = 0; 98 99 while ((c = getopt(argc, argv, "abchlrwv")) != -1) { 100 switch(c) { 101 case 'a': 102 attachedmode = 1; 103 break; 104 105 case 'b': 106 bars = 1; 107 byte = 1; 108 break; 109 110 case 'c': 111 caps = 1; 112 break; 113 114 case 'h': 115 isshort = 1; 116 break; 117 118 case 'l': 119 listmode = 1; 120 break; 121 122 case 'r': 123 readmode = 1; 124 break; 125 126 case 'w': 127 writemode = 1; 128 break; 129 130 case 'v': 131 verbose = 1; 132 break; 133 134 default: 135 usage(); 136 } 137 } 138 139 if ((listmode && optind != argc) 140 || (writemode && optind + 3 != argc) 141 || (readmode && optind + 2 != argc) 142 || (attachedmode && optind + 1 != argc)) 143 usage(); 144 145 if (listmode) { 146 list_devs(verbose, bars, caps); 147 } else if (attachedmode) { 148 chkattached(argv[optind], 149 byte ? 1 : isshort ? 2 : 4); 150 } else if (readmode) { 151 readit(argv[optind], argv[optind + 1], 152 byte ? 1 : isshort ? 2 : 4); 153 } else if (writemode) { 154 writeit(argv[optind], argv[optind + 1], argv[optind + 2], 155 byte ? 1 : isshort ? 2 : 4); 156 } else { 157 usage(); 158 } 159 160 return exitstatus; 161 } 162 163 static void 164 list_devs(int verbose, int bars, int caps) 165 { 166 int fd; 167 struct pci_conf_io pc; 168 struct pci_conf conf[255], *p; 169 int none_count = 0; 170 171 if (verbose) 172 load_vendors(); 173 174 fd = open(_PATH_DEVPCI, caps ? O_RDWR : O_RDONLY, 0); 175 if (fd < 0) 176 err(1, "%s", _PATH_DEVPCI); 177 178 bzero(&pc, sizeof(struct pci_conf_io)); 179 pc.match_buf_len = sizeof(conf); 180 pc.matches = conf; 181 182 do { 183 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 184 err(1, "ioctl(PCIOCGETCONF)"); 185 186 /* 187 * 255 entries should be more than enough for most people, 188 * but if someone has more devices, and then changes things 189 * around between ioctls, we'll do the cheezy thing and 190 * just bail. The alternative would be to go back to the 191 * beginning of the list, and print things twice, which may 192 * not be desireable. 193 */ 194 if (pc.status == PCI_GETCONF_LIST_CHANGED) { 195 warnx("PCI device list changed, please try again"); 196 exitstatus = 1; 197 close(fd); 198 return; 199 } else if (pc.status == PCI_GETCONF_ERROR) { 200 warnx("error returned from PCIOCGETCONF ioctl"); 201 exitstatus = 1; 202 close(fd); 203 return; 204 } 205 for (p = conf; p < &conf[pc.num_matches]; p++) { 206 printf("%s%d@pci%d:%d:%d:%d:\tclass=0x%06x card=0x%08x " 207 "chip=0x%08x rev=0x%02x hdr=0x%02x\n", 208 (p->pd_name && *p->pd_name) ? p->pd_name : 209 "none", 210 (p->pd_name && *p->pd_name) ? (int)p->pd_unit : 211 none_count++, p->pc_sel.pc_domain, 212 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 213 p->pc_sel.pc_func, (p->pc_class << 16) | 214 (p->pc_subclass << 8) | p->pc_progif, 215 (p->pc_subdevice << 16) | p->pc_subvendor, 216 (p->pc_device << 16) | p->pc_vendor, 217 p->pc_revid, p->pc_hdr); 218 if (verbose) 219 list_verbose(p); 220 if (bars) 221 list_bars(fd, p); 222 if (caps) 223 list_caps(fd, p); 224 } 225 } while (pc.status == PCI_GETCONF_MORE_DEVS); 226 227 close(fd); 228 } 229 230 static void 231 list_bars(int fd, struct pci_conf *p) 232 { 233 struct pci_bar_io bar; 234 uint64_t base; 235 const char *type; 236 int i, range, max; 237 238 switch (p->pc_hdr & PCIM_HDRTYPE) { 239 case PCIM_HDRTYPE_NORMAL: 240 max = PCIR_MAX_BAR_0; 241 break; 242 case PCIM_HDRTYPE_BRIDGE: 243 max = PCIR_MAX_BAR_1; 244 break; 245 case PCIM_HDRTYPE_CARDBUS: 246 max = PCIR_MAX_BAR_2; 247 break; 248 default: 249 return; 250 } 251 252 for (i = 0; i <= max; i++) { 253 bar.pbi_sel = p->pc_sel; 254 bar.pbi_reg = PCIR_BAR(i); 255 if (ioctl(fd, PCIOCGETBAR, &bar) < 0) 256 continue; 257 if (PCI_BAR_IO(bar.pbi_base)) { 258 type = "I/O Port"; 259 range = 32; 260 base = bar.pbi_base & PCIM_BAR_IO_BASE; 261 } else { 262 if (bar.pbi_base & PCIM_BAR_MEM_PREFETCH) 263 type = "Prefetchable Memory"; 264 else 265 type = "Memory"; 266 switch (bar.pbi_base & PCIM_BAR_MEM_TYPE) { 267 case PCIM_BAR_MEM_32: 268 range = 32; 269 break; 270 case PCIM_BAR_MEM_1MB: 271 range = 20; 272 break; 273 case PCIM_BAR_MEM_64: 274 range = 64; 275 break; 276 default: 277 range = -1; 278 } 279 base = bar.pbi_base & ~((uint64_t)0xf); 280 } 281 printf(" bar [%02x] = type %s, range %2d, base %#jx, ", 282 PCIR_BAR(i), type, range, (uintmax_t)base); 283 printf("size %2d, %s\n", (int)bar.pbi_length, 284 bar.pbi_enabled ? "enabled" : "disabled"); 285 } 286 } 287 288 static void 289 list_verbose(struct pci_conf *p) 290 { 291 struct pci_vendor_info *vi; 292 struct pci_device_info *di; 293 const char *dp; 294 295 TAILQ_FOREACH(vi, &pci_vendors, link) { 296 if (vi->id == p->pc_vendor) { 297 printf(" vendor = '%s'\n", vi->desc); 298 break; 299 } 300 } 301 if (vi == NULL) { 302 di = NULL; 303 } else { 304 TAILQ_FOREACH(di, &vi->devs, link) { 305 if (di->id == p->pc_device) { 306 printf(" device = '%s'\n", di->desc); 307 break; 308 } 309 } 310 } 311 if ((dp = guess_class(p)) != NULL) 312 printf(" class = %s\n", dp); 313 if ((dp = guess_subclass(p)) != NULL) 314 printf(" subclass = %s\n", dp); 315 } 316 317 /* 318 * This is a direct cut-and-paste from the table in sys/bus/pci/pcireg.h. 319 */ 320 static struct 321 { 322 int class; 323 int subclass; 324 const char *desc; 325 } pci_nomatch_tab[] = { 326 {PCIC_OLD, -1, "old"}, 327 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"}, 328 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"}, 329 {PCIC_STORAGE, -1, "mass storage"}, 330 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"}, 331 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"}, 332 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"}, 333 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"}, 334 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"}, 335 {PCIC_STORAGE, PCIS_STORAGE_ATA_ADMA, "ATA (ADMA)"}, 336 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"}, 337 {PCIC_STORAGE, PCIS_STORAGE_SAS, "SAS"}, 338 {PCIC_NETWORK, -1, "network"}, 339 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"}, 340 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"}, 341 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"}, 342 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"}, 343 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"}, 344 {PCIC_DISPLAY, -1, "display"}, 345 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"}, 346 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"}, 347 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"}, 348 {PCIC_MULTIMEDIA, -1, "multimedia"}, 349 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"}, 350 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"}, 351 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TELE, "telephony"}, 352 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_HDA, "HDA"}, 353 {PCIC_MEMORY, -1, "memory"}, 354 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"}, 355 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"}, 356 {PCIC_BRIDGE, -1, "bridge"}, 357 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"}, 358 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"}, 359 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"}, 360 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"}, 361 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"}, 362 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"}, 363 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"}, 364 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"}, 365 {PCIC_BRIDGE, PCIS_BRIDGE_RACEWAY, "PCI-RACEway"}, 366 {PCIC_SIMPLECOMM, -1, "simple comms"}, 367 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */ 368 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"}, 369 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULSER, "multiport serial"}, 370 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"}, 371 {PCIC_BASEPERIPH, -1, "base peripheral"}, 372 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"}, 373 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"}, 374 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"}, 375 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"}, 376 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PCIHOT, "PCI hot-plug controller"}, 377 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_SDHC, "SD host controller"}, 378 {PCIC_INPUTDEV, -1, "input device"}, 379 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"}, 380 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"}, 381 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"}, 382 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"}, 383 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"}, 384 {PCIC_DOCKING, -1, "docking station"}, 385 {PCIC_PROCESSOR, -1, "processor"}, 386 {PCIC_SERIALBUS, -1, "serial bus"}, 387 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"}, 388 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"}, 389 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"}, 390 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"}, 391 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"}, 392 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"}, 393 {PCIC_WIRELESS, -1, "wireless controller"}, 394 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"}, 395 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "IR"}, 396 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF"}, 397 {PCIC_INTELLIIO, -1, "intelligent I/O controller"}, 398 {PCIC_INTELLIIO, PCIS_INTELLIIO_I2O, "I2O"}, 399 {PCIC_SATCOM, -1, "satellite communication"}, 400 {PCIC_SATCOM, PCIS_SATCOM_TV, "sat TV"}, 401 {PCIC_SATCOM, PCIS_SATCOM_AUDIO, "sat audio"}, 402 {PCIC_SATCOM, PCIS_SATCOM_VOICE, "sat voice"}, 403 {PCIC_SATCOM, PCIS_SATCOM_DATA, "sat data"}, 404 {PCIC_CRYPTO, -1, "encrypt/decrypt"}, 405 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "network/computer crypto"}, 406 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "entertainment crypto"}, 407 {PCIC_DASP, -1, "dasp"}, 408 {PCIC_DASP, PCIS_DASP_DPIO, "DPIO module"}, 409 {0, 0, NULL} 410 }; 411 412 static const char * 413 guess_class(struct pci_conf *p) 414 { 415 int i; 416 417 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 418 if (pci_nomatch_tab[i].class == p->pc_class) 419 return(pci_nomatch_tab[i].desc); 420 } 421 return(NULL); 422 } 423 424 static const char * 425 guess_subclass(struct pci_conf *p) 426 { 427 int i; 428 429 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 430 if ((pci_nomatch_tab[i].class == p->pc_class) && 431 (pci_nomatch_tab[i].subclass == p->pc_subclass)) 432 return(pci_nomatch_tab[i].desc); 433 } 434 return(NULL); 435 } 436 437 static int 438 load_vendors(void) 439 { 440 const char *dbf; 441 FILE *db; 442 struct pci_vendor_info *cv; 443 struct pci_device_info *cd; 444 char buf[1024], str[1024]; 445 char *ch; 446 int id, error; 447 448 /* 449 * Locate the database and initialise. 450 */ 451 TAILQ_INIT(&pci_vendors); 452 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL) 453 dbf = _PATH_PCIVDB; 454 if ((db = fopen(dbf, "r")) == NULL) 455 return(1); 456 cv = NULL; 457 cd = NULL; 458 error = 0; 459 460 /* 461 * Scan input lines from the database 462 */ 463 for (;;) { 464 if (fgets(buf, sizeof(buf), db) == NULL) 465 break; 466 467 if ((ch = strchr(buf, '#')) != NULL) 468 *ch = '\0'; 469 ch = strchr(buf, '\0') - 1; 470 while (ch > buf && isspace(*ch)) 471 *ch-- = '\0'; 472 if (ch <= buf) 473 continue; 474 475 /* Can't handle subvendor / subdevice entries yet */ 476 if (buf[0] == '\t' && buf[1] == '\t') 477 continue; 478 479 /* Check for vendor entry */ 480 if (buf[0] != '\t' && sscanf(buf, "%04x %[^\n]", &id, str) == 2) { 481 if ((id == 0) || (strlen(str) < 1)) 482 continue; 483 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) { 484 warn("allocating vendor entry"); 485 error = 1; 486 break; 487 } 488 if ((cv->desc = strdup(str)) == NULL) { 489 free(cv); 490 warn("allocating vendor description"); 491 error = 1; 492 break; 493 } 494 cv->id = id; 495 TAILQ_INIT(&cv->devs); 496 TAILQ_INSERT_TAIL(&pci_vendors, cv, link); 497 continue; 498 } 499 500 /* Check for device entry */ 501 if (buf[0] == '\t' && sscanf(buf + 1, "%04x %[^\n]", &id, str) == 2) { 502 if ((id == 0) || (strlen(str) < 1)) 503 continue; 504 if (cv == NULL) { 505 warnx("device entry with no vendor!"); 506 continue; 507 } 508 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) { 509 warn("allocating device entry"); 510 error = 1; 511 break; 512 } 513 if ((cd->desc = strdup(str)) == NULL) { 514 free(cd); 515 warn("allocating device description"); 516 error = 1; 517 break; 518 } 519 cd->id = id; 520 TAILQ_INSERT_TAIL(&cv->devs, cd, link); 521 continue; 522 } 523 524 /* It's a comment or junk, ignore it */ 525 } 526 if (ferror(db)) 527 error = 1; 528 fclose(db); 529 530 return(error); 531 } 532 533 uint32_t 534 read_config(int fd, struct pcisel *sel, long reg, int width) 535 { 536 struct pci_io pi; 537 538 pi.pi_sel = *sel; 539 pi.pi_reg = reg; 540 pi.pi_width = width; 541 542 if (ioctl(fd, PCIOCREAD, &pi) < 0) 543 err(1, "ioctl(PCIOCREAD)"); 544 545 return (pi.pi_data); 546 } 547 548 static struct pcisel 549 getsel(const char *str) 550 { 551 char *ep = strchr(str, '@'); 552 char *epbase; 553 struct pcisel sel = {0,0,0,0}; 554 unsigned long selarr[4]; 555 int i; 556 557 if (ep == NULL) 558 ep = __DECONST(char *, str); 559 else 560 ep++; 561 562 epbase = ep; 563 564 if (strncmp(ep, "pci", 3) == 0) { 565 ep += 3; 566 i = 0; 567 do { 568 selarr[i++] = strtoul(ep, &ep, 10); 569 } while ((*ep == ':' || *ep == '.') && *++ep != '\0' && i < 4); 570 571 if (i > 2) 572 sel.pc_func = selarr[--i]; 573 else 574 sel.pc_func = 0; 575 sel.pc_dev = selarr[--i]; 576 sel.pc_bus = selarr[--i]; 577 if (i > 0) 578 sel.pc_domain = selarr[--i]; 579 else 580 sel.pc_domain = 0; 581 } 582 if (*ep != '\x0' || ep == epbase) 583 errx(1, "cannot parse selector %s", str); 584 return sel; 585 } 586 587 static void 588 readone(int fd, struct pcisel *sel, long reg, int width) 589 { 590 591 printf("%0*x", width*2, read_config(fd, sel, reg, width)); 592 } 593 594 static void 595 readit(const char *name, const char *reg, int width) 596 { 597 long rstart; 598 long rend; 599 long r; 600 char *end; 601 int i; 602 int fd; 603 struct pcisel sel; 604 605 fd = open(_PATH_DEVPCI, O_RDWR, 0); 606 if (fd < 0) 607 err(1, "%s", _PATH_DEVPCI); 608 609 rend = rstart = strtol(reg, &end, 0); 610 if (end && *end == ':') { 611 end++; 612 rend = strtol(end, (char **) 0, 0); 613 } 614 sel = getsel(name); 615 for (i = 1, r = rstart; r <= rend; i++, r += width) { 616 readone(fd, &sel, r, width); 617 if (i && !(i % 8)) putchar(' '); 618 putchar(i % (16/width) ? ' ' : '\n'); 619 } 620 if (i % (16/width) != 1) 621 putchar('\n'); 622 close(fd); 623 } 624 625 static void 626 writeit(const char *name, const char *reg, const char *data, int width) 627 { 628 int fd; 629 struct pci_io pi; 630 631 pi.pi_sel = getsel(name); 632 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */ 633 pi.pi_width = width; 634 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */ 635 636 fd = open(_PATH_DEVPCI, O_RDWR, 0); 637 if (fd < 0) 638 err(1, "%s", _PATH_DEVPCI); 639 640 if (ioctl(fd, PCIOCWRITE, &pi) < 0) 641 err(1, "ioctl(PCIOCWRITE)"); 642 } 643 644 static void 645 chkattached(const char *name, int width) 646 { 647 int fd; 648 struct pci_io pi; 649 650 pi.pi_sel = getsel(name); 651 pi.pi_reg = 0; 652 pi.pi_width = width; 653 pi.pi_data = 0; 654 655 fd = open(_PATH_DEVPCI, O_RDWR, 0); 656 if (fd < 0) 657 err(1, "%s", _PATH_DEVPCI); 658 659 if (ioctl(fd, PCIOCATTACHED, &pi) < 0) 660 err(1, "ioctl(PCIOCATTACHED)"); 661 662 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */ 663 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached"); 664 } 665