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#include <sys/types.h> 31#include <sys/fcntl.h> 32#include <sys/mman.h> 33#include <sys/pciio.h> 34#include <sys/queue.h> 35 36#include <vm/vm.h> 37 38#include <dev/pci/pcireg.h> 39 40#include <assert.h> 41#include <ctype.h> 42#include <err.h> 43#include <inttypes.h> 44#include <stdbool.h> 45#include <stdlib.h> 46#include <stdio.h> 47#include <string.h> 48#include <unistd.h> 49 50#include "pathnames.h" 51#include "pciconf.h" 52 53struct pci_device_info 54{ 55 TAILQ_ENTRY(pci_device_info) link; 56 int id; 57 char *desc; 58}; 59 60struct pci_vendor_info 61{ 62 TAILQ_ENTRY(pci_vendor_info) link; 63 TAILQ_HEAD(,pci_device_info) devs; 64 int id; 65 char *desc; 66}; 67 68static TAILQ_HEAD(,pci_vendor_info) pci_vendors; 69 70static struct pcisel getsel(const char *str); 71static void list_bridge(int fd, struct pci_conf *p); 72static void list_bars(int fd, struct pci_conf *p); 73static void list_devs(const char *name, int verbose, int bars, int bridge, 74 int caps, int errors, int vpd, int listmode); 75static void list_verbose(struct pci_conf *p); 76static void list_vpd(int fd, struct pci_conf *p); 77static const char *guess_class(struct pci_conf *p); 78static const char *guess_subclass(struct pci_conf *p); 79static int load_vendors(void); 80static void readit(const char *, const char *, int); 81static void writeit(const char *, const char *, const char *, int); 82static void chkattached(const char *); 83static void dump_bar(const char *name, const char *reg, const char *bar_start, 84 const char *bar_count, int width, int verbose); 85 86static int exitstatus = 0; 87 88static void 89usage(void) 90{ 91 92 fprintf(stderr, "%s", 93 "usage: pciconf -l [-BbcevV] [device]\n" 94 " pciconf -a device\n" 95 " pciconf -r [-b | -h] device addr[:addr2]\n" 96 " pciconf -w [-b | -h] device addr value\n" 97 " pciconf -D [-b | -h | -x] device bar [start [count]]" 98 "\n"); 99 exit(1); 100} 101 102int 103main(int argc, char **argv) 104{ 105 int c, width; 106 int listmode, readmode, writemode, attachedmode, dumpbarmode; 107 int bars, bridge, caps, errors, verbose, vpd; 108 109 listmode = readmode = writemode = attachedmode = dumpbarmode = 0; 110 bars = bridge = caps = errors = verbose = vpd= 0; 111 width = 4; 112 113 while ((c = getopt(argc, argv, "aBbcDehlrwVv")) != -1) { 114 switch(c) { 115 case 'a': 116 attachedmode = 1; 117 break; 118 119 case 'B': 120 bridge = 1; 121 break; 122 123 case 'b': 124 bars = 1; 125 width = 1; 126 break; 127 128 case 'c': 129 caps++; 130 break; 131 132 case 'D': 133 dumpbarmode = 1; 134 break; 135 136 case 'e': 137 errors = 1; 138 break; 139 140 case 'h': 141 width = 2; 142 break; 143 144 case 'l': 145 listmode++; 146 break; 147 148 case 'r': 149 readmode = 1; 150 break; 151 152 case 'w': 153 writemode = 1; 154 break; 155 156 case 'v': 157 verbose = 1; 158 break; 159 160 case 'V': 161 vpd = 1; 162 break; 163 164 case 'x': 165 width = 8; 166 break; 167 168 default: 169 usage(); 170 } 171 } 172 173 if ((listmode && optind >= argc + 1) 174 || (writemode && optind + 3 != argc) 175 || (readmode && optind + 2 != argc) 176 || (attachedmode && optind + 1 != argc) 177 || (dumpbarmode && (optind + 2 > argc || optind + 4 < argc)) 178 || (width == 8 && !dumpbarmode)) 179 usage(); 180 181 if (listmode) { 182 list_devs(optind + 1 == argc ? argv[optind] : NULL, verbose, 183 bars, bridge, caps, errors, vpd, listmode); 184 } else if (attachedmode) { 185 chkattached(argv[optind]); 186 } else if (readmode) { 187 readit(argv[optind], argv[optind + 1], width); 188 } else if (writemode) { 189 writeit(argv[optind], argv[optind + 1], argv[optind + 2], 190 width); 191 } else if (dumpbarmode) { 192 dump_bar(argv[optind], argv[optind + 1], 193 optind + 2 < argc ? argv[optind + 2] : NULL, 194 optind + 3 < argc ? argv[optind + 3] : NULL, 195 width, verbose); 196 } else { 197 usage(); 198 } 199 200 return (exitstatus); 201} 202 203static void 204list_devs(const char *name, int verbose, int bars, int bridge, int caps, 205 int errors, int vpd, int listmode) 206{ 207 int fd; 208 struct pci_conf_io pc; 209 struct pci_conf conf[255], *p; 210 struct pci_match_conf patterns[1]; 211 int none_count = 0; 212 213 if (verbose) 214 load_vendors(); 215 216 fd = open(_PATH_DEVPCI, (bridge || caps || errors) ? O_RDWR : O_RDONLY, 217 0); 218 if (fd < 0) 219 err(1, "%s", _PATH_DEVPCI); 220 221 bzero(&pc, sizeof(struct pci_conf_io)); 222 pc.match_buf_len = sizeof(conf); 223 pc.matches = conf; 224 if (name != NULL) { 225 bzero(&patterns, sizeof(patterns)); 226 patterns[0].pc_sel = getsel(name); 227 patterns[0].flags = PCI_GETCONF_MATCH_DOMAIN | 228 PCI_GETCONF_MATCH_BUS | PCI_GETCONF_MATCH_DEV | 229 PCI_GETCONF_MATCH_FUNC; 230 pc.num_patterns = 1; 231 pc.pat_buf_len = sizeof(patterns); 232 pc.patterns = patterns; 233 } 234 235 do { 236 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 237 err(1, "ioctl(PCIOCGETCONF)"); 238 239 /* 240 * 255 entries should be more than enough for most people, 241 * but if someone has more devices, and then changes things 242 * around between ioctls, we'll do the cheesy thing and 243 * just bail. The alternative would be to go back to the 244 * beginning of the list, and print things twice, which may 245 * not be desirable. 246 */ 247 if (pc.status == PCI_GETCONF_LIST_CHANGED) { 248 warnx("PCI device list changed, please try again"); 249 exitstatus = 1; 250 close(fd); 251 return; 252 } else if (pc.status == PCI_GETCONF_ERROR) { 253 warnx("error returned from PCIOCGETCONF ioctl"); 254 exitstatus = 1; 255 close(fd); 256 return; 257 } 258 if (listmode == 2) 259 printf("drv\tselector\tclass rev hdr " 260 "vendor device subven subdev\n"); 261 for (p = conf; p < &conf[pc.num_matches]; p++) { 262 if (listmode == 2) 263 printf("%s%d@pci%d:%d:%d:%d:" 264 "\t%06x %02x %02x " 265 "%04x %04x %04x %04x\n", 266 *p->pd_name ? p->pd_name : "none", 267 *p->pd_name ? (int)p->pd_unit : 268 none_count++, p->pc_sel.pc_domain, 269 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 270 p->pc_sel.pc_func, (p->pc_class << 16) | 271 (p->pc_subclass << 8) | p->pc_progif, 272 p->pc_revid, p->pc_hdr, 273 p->pc_vendor, p->pc_device, 274 p->pc_subvendor, p->pc_subdevice); 275 else 276 printf("%s%d@pci%d:%d:%d:%d:" 277 "\tclass=0x%06x rev=0x%02x hdr=0x%02x " 278 "vendor=0x%04x device=0x%04x " 279 "subvendor=0x%04x subdevice=0x%04x\n", 280 *p->pd_name ? p->pd_name : "none", 281 *p->pd_name ? (int)p->pd_unit : 282 none_count++, p->pc_sel.pc_domain, 283 p->pc_sel.pc_bus, p->pc_sel.pc_dev, 284 p->pc_sel.pc_func, (p->pc_class << 16) | 285 (p->pc_subclass << 8) | p->pc_progif, 286 p->pc_revid, p->pc_hdr, 287 p->pc_vendor, p->pc_device, 288 p->pc_subvendor, p->pc_subdevice); 289 if (verbose) 290 list_verbose(p); 291 if (bars) 292 list_bars(fd, p); 293 if (bridge) 294 list_bridge(fd, p); 295 if (caps) 296 list_caps(fd, p, caps); 297 if (errors) 298 list_errors(fd, p); 299 if (vpd) 300 list_vpd(fd, p); 301 } 302 } while (pc.status == PCI_GETCONF_MORE_DEVS); 303 304 close(fd); 305} 306 307static void 308print_bus_range(int fd, struct pci_conf *p, int secreg, int subreg) 309{ 310 uint8_t secbus, subbus; 311 312 secbus = read_config(fd, &p->pc_sel, secreg, 1); 313 subbus = read_config(fd, &p->pc_sel, subreg, 1); 314 printf(" bus range = %u-%u\n", secbus, subbus); 315} 316 317static void 318print_window(int reg, const char *type, int range, uint64_t base, 319 uint64_t limit) 320{ 321 322 printf(" window[%02x] = type %s, range %2d, addr %#jx-%#jx, %s\n", 323 reg, type, range, (uintmax_t)base, (uintmax_t)limit, 324 base < limit ? "enabled" : "disabled"); 325} 326 327static void 328print_special_decode(bool isa, bool vga, bool subtractive) 329{ 330 bool comma; 331 332 if (isa || vga || subtractive) { 333 comma = false; 334 printf(" decode = "); 335 if (isa) { 336 printf("ISA"); 337 comma = true; 338 } 339 if (vga) { 340 printf("%sVGA", comma ? ", " : ""); 341 comma = true; 342 } 343 if (subtractive) 344 printf("%ssubtractive", comma ? ", " : ""); 345 printf("\n"); 346 } 347} 348 349static void 350print_bridge_windows(int fd, struct pci_conf *p) 351{ 352 uint64_t base, limit; 353 uint32_t val; 354 uint16_t bctl; 355 bool subtractive; 356 int range; 357 358 /* 359 * XXX: This assumes that a window with a base and limit of 0 360 * is not implemented. In theory a window might be programmed 361 * at the smallest size with a base of 0, but those do not seem 362 * common in practice. 363 */ 364 val = read_config(fd, &p->pc_sel, PCIR_IOBASEL_1, 1); 365 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1) != 0) { 366 if ((val & PCIM_BRIO_MASK) == PCIM_BRIO_32) { 367 base = PCI_PPBIOBASE( 368 read_config(fd, &p->pc_sel, PCIR_IOBASEH_1, 2), 369 val); 370 limit = PCI_PPBIOLIMIT( 371 read_config(fd, &p->pc_sel, PCIR_IOLIMITH_1, 2), 372 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 373 range = 32; 374 } else { 375 base = PCI_PPBIOBASE(0, val); 376 limit = PCI_PPBIOLIMIT(0, 377 read_config(fd, &p->pc_sel, PCIR_IOLIMITL_1, 1)); 378 range = 16; 379 } 380 print_window(PCIR_IOBASEL_1, "I/O Port", range, base, limit); 381 } 382 383 base = PCI_PPBMEMBASE(0, 384 read_config(fd, &p->pc_sel, PCIR_MEMBASE_1, 2)); 385 limit = PCI_PPBMEMLIMIT(0, 386 read_config(fd, &p->pc_sel, PCIR_MEMLIMIT_1, 2)); 387 print_window(PCIR_MEMBASE_1, "Memory", 32, base, limit); 388 389 val = read_config(fd, &p->pc_sel, PCIR_PMBASEL_1, 2); 390 if (val != 0 || read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2) != 0) { 391 if ((val & PCIM_BRPM_MASK) == PCIM_BRPM_64) { 392 base = PCI_PPBMEMBASE( 393 read_config(fd, &p->pc_sel, PCIR_PMBASEH_1, 4), 394 val); 395 limit = PCI_PPBMEMLIMIT( 396 read_config(fd, &p->pc_sel, PCIR_PMLIMITH_1, 4), 397 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 398 range = 64; 399 } else { 400 base = PCI_PPBMEMBASE(0, val); 401 limit = PCI_PPBMEMLIMIT(0, 402 read_config(fd, &p->pc_sel, PCIR_PMLIMITL_1, 2)); 403 range = 32; 404 } 405 print_window(PCIR_PMBASEL_1, "Prefetchable Memory", range, base, 406 limit); 407 } 408 409 /* 410 * XXX: This list of bridges that are subtractive but do not set 411 * progif to indicate it is copied from pci_pci.c. 412 */ 413 subtractive = p->pc_progif == PCIP_BRIDGE_PCI_SUBTRACTIVE; 414 switch (p->pc_device << 16 | p->pc_vendor) { 415 case 0xa002177d: /* Cavium ThunderX */ 416 case 0x124b8086: /* Intel 82380FB Mobile */ 417 case 0x060513d7: /* Toshiba ???? */ 418 subtractive = true; 419 } 420 if (p->pc_vendor == 0x8086 && (p->pc_device & 0xff00) == 0x2400) 421 subtractive = true; 422 423 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_1, 2); 424 print_special_decode(bctl & PCIB_BCR_ISA_ENABLE, 425 bctl & PCIB_BCR_VGA_ENABLE, subtractive); 426} 427 428static void 429print_cardbus_mem_window(int fd, struct pci_conf *p, int basereg, int limitreg, 430 bool prefetch) 431{ 432 433 print_window(basereg, prefetch ? "Prefetchable Memory" : "Memory", 32, 434 PCI_CBBMEMBASE(read_config(fd, &p->pc_sel, basereg, 4)), 435 PCI_CBBMEMLIMIT(read_config(fd, &p->pc_sel, limitreg, 4))); 436} 437 438static void 439print_cardbus_io_window(int fd, struct pci_conf *p, int basereg, int limitreg) 440{ 441 uint32_t base, limit; 442 uint32_t val; 443 int range; 444 445 val = read_config(fd, &p->pc_sel, basereg, 2); 446 if ((val & PCIM_CBBIO_MASK) == PCIM_CBBIO_32) { 447 base = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, basereg, 4)); 448 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 4)); 449 range = 32; 450 } else { 451 base = PCI_CBBIOBASE(val); 452 limit = PCI_CBBIOBASE(read_config(fd, &p->pc_sel, limitreg, 2)); 453 range = 16; 454 } 455 print_window(basereg, "I/O Port", range, base, limit); 456} 457 458static void 459print_cardbus_windows(int fd, struct pci_conf *p) 460{ 461 uint16_t bctl; 462 463 bctl = read_config(fd, &p->pc_sel, PCIR_BRIDGECTL_2, 2); 464 print_cardbus_mem_window(fd, p, PCIR_MEMBASE0_2, PCIR_MEMLIMIT0_2, 465 bctl & CBB_BCR_PREFETCH_0_ENABLE); 466 print_cardbus_mem_window(fd, p, PCIR_MEMBASE1_2, PCIR_MEMLIMIT1_2, 467 bctl & CBB_BCR_PREFETCH_1_ENABLE); 468 print_cardbus_io_window(fd, p, PCIR_IOBASE0_2, PCIR_IOLIMIT0_2); 469 print_cardbus_io_window(fd, p, PCIR_IOBASE1_2, PCIR_IOLIMIT1_2); 470 print_special_decode(bctl & CBB_BCR_ISA_ENABLE, 471 bctl & CBB_BCR_VGA_ENABLE, false); 472} 473 474static void 475list_bridge(int fd, struct pci_conf *p) 476{ 477 478 switch (p->pc_hdr & PCIM_HDRTYPE) { 479 case PCIM_HDRTYPE_BRIDGE: 480 print_bus_range(fd, p, PCIR_SECBUS_1, PCIR_SUBBUS_1); 481 print_bridge_windows(fd, p); 482 break; 483 case PCIM_HDRTYPE_CARDBUS: 484 print_bus_range(fd, p, PCIR_SECBUS_2, PCIR_SUBBUS_2); 485 print_cardbus_windows(fd, p); 486 break; 487 } 488} 489 490static void 491list_bars(int fd, struct pci_conf *p) 492{ 493 int i, max; 494 495 switch (p->pc_hdr & PCIM_HDRTYPE) { 496 case PCIM_HDRTYPE_NORMAL: 497 max = PCIR_MAX_BAR_0; 498 break; 499 case PCIM_HDRTYPE_BRIDGE: 500 max = PCIR_MAX_BAR_1; 501 break; 502 case PCIM_HDRTYPE_CARDBUS: 503 max = PCIR_MAX_BAR_2; 504 break; 505 default: 506 return; 507 } 508 509 for (i = 0; i <= max; i++) 510 print_bar(fd, p, "bar ", PCIR_BAR(i)); 511} 512 513void 514print_bar(int fd, struct pci_conf *p, const char *label, uint16_t bar_offset) 515{ 516 uint64_t base; 517 const char *type; 518 struct pci_bar_io bar; 519 int range; 520 521 bar.pbi_sel = p->pc_sel; 522 bar.pbi_reg = bar_offset; 523 if (ioctl(fd, PCIOCGETBAR, &bar) < 0) 524 return; 525 if (PCI_BAR_IO(bar.pbi_base)) { 526 type = "I/O Port"; 527 range = 32; 528 base = bar.pbi_base & PCIM_BAR_IO_BASE; 529 } else { 530 if (bar.pbi_base & PCIM_BAR_MEM_PREFETCH) 531 type = "Prefetchable Memory"; 532 else 533 type = "Memory"; 534 switch (bar.pbi_base & PCIM_BAR_MEM_TYPE) { 535 case PCIM_BAR_MEM_32: 536 range = 32; 537 break; 538 case PCIM_BAR_MEM_1MB: 539 range = 20; 540 break; 541 case PCIM_BAR_MEM_64: 542 range = 64; 543 break; 544 default: 545 range = -1; 546 } 547 base = bar.pbi_base & ~((uint64_t)0xf); 548 } 549 printf(" %s[%02x] = type %s, range %2d, base %#jx, ", 550 label, bar_offset, type, range, (uintmax_t)base); 551 printf("size %ju, %s\n", (uintmax_t)bar.pbi_length, 552 bar.pbi_enabled ? "enabled" : "disabled"); 553} 554 555static void 556list_verbose(struct pci_conf *p) 557{ 558 struct pci_vendor_info *vi; 559 struct pci_device_info *di; 560 const char *dp; 561 562 TAILQ_FOREACH(vi, &pci_vendors, link) { 563 if (vi->id == p->pc_vendor) { 564 printf(" vendor = '%s'\n", vi->desc); 565 break; 566 } 567 } 568 if (vi == NULL) { 569 di = NULL; 570 } else { 571 TAILQ_FOREACH(di, &vi->devs, link) { 572 if (di->id == p->pc_device) { 573 printf(" device = '%s'\n", di->desc); 574 break; 575 } 576 } 577 } 578 if ((dp = guess_class(p)) != NULL) 579 printf(" class = %s\n", dp); 580 if ((dp = guess_subclass(p)) != NULL) 581 printf(" subclass = %s\n", dp); 582} 583 584static void 585list_vpd(int fd, struct pci_conf *p) 586{ 587 struct pci_list_vpd_io list; 588 struct pci_vpd_element *vpd, *end; 589 590 list.plvi_sel = p->pc_sel; 591 list.plvi_len = 0; 592 list.plvi_data = NULL; 593 if (ioctl(fd, PCIOCLISTVPD, &list) < 0 || list.plvi_len == 0) 594 return; 595 596 list.plvi_data = malloc(list.plvi_len); 597 if (ioctl(fd, PCIOCLISTVPD, &list) < 0) { 598 free(list.plvi_data); 599 return; 600 } 601 602 vpd = list.plvi_data; 603 end = (struct pci_vpd_element *)((char *)vpd + list.plvi_len); 604 for (; vpd < end; vpd = PVE_NEXT(vpd)) { 605 if (vpd->pve_flags == PVE_FLAG_IDENT) { 606 printf(" VPD ident = '%.*s'\n", 607 (int)vpd->pve_datalen, vpd->pve_data); 608 continue; 609 } 610 611 /* Ignore the checksum keyword. */ 612 if (!(vpd->pve_flags & PVE_FLAG_RW) && 613 memcmp(vpd->pve_keyword, "RV", 2) == 0) 614 continue; 615 616 /* Ignore remaining read-write space. */ 617 if (vpd->pve_flags & PVE_FLAG_RW && 618 memcmp(vpd->pve_keyword, "RW", 2) == 0) 619 continue; 620 621 /* Handle extended capability keyword. */ 622 if (!(vpd->pve_flags & PVE_FLAG_RW) && 623 memcmp(vpd->pve_keyword, "CP", 2) == 0) { 624 printf(" VPD ro CP = ID %02x in map 0x%x[0x%x]\n", 625 (unsigned int)vpd->pve_data[0], 626 PCIR_BAR((unsigned int)vpd->pve_data[1]), 627 (unsigned int)vpd->pve_data[3] << 8 | 628 (unsigned int)vpd->pve_data[2]); 629 continue; 630 } 631 632 /* Remaining keywords should all have ASCII values. */ 633 printf(" VPD %s %c%c = '%.*s'\n", 634 vpd->pve_flags & PVE_FLAG_RW ? "rw" : "ro", 635 vpd->pve_keyword[0], vpd->pve_keyword[1], 636 (int)vpd->pve_datalen, vpd->pve_data); 637 } 638 free(list.plvi_data); 639} 640 641/* 642 * This is a direct cut-and-paste from the table in sys/dev/pci/pci.c. 643 */ 644static struct 645{ 646 int class; 647 int subclass; 648 const char *desc; 649} pci_nomatch_tab[] = { 650 {PCIC_OLD, -1, "old"}, 651 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"}, 652 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"}, 653 {PCIC_STORAGE, -1, "mass storage"}, 654 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"}, 655 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"}, 656 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"}, 657 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"}, 658 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"}, 659 {PCIC_STORAGE, PCIS_STORAGE_ATA_ADMA, "ATA (ADMA)"}, 660 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"}, 661 {PCIC_STORAGE, PCIS_STORAGE_SAS, "SAS"}, 662 {PCIC_STORAGE, PCIS_STORAGE_NVM, "NVM"}, 663 {PCIC_STORAGE, PCIS_STORAGE_UFS, "UFS"}, 664 {PCIC_NETWORK, -1, "network"}, 665 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"}, 666 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"}, 667 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"}, 668 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"}, 669 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"}, 670 {PCIC_NETWORK, PCIS_NETWORK_WORLDFIP, "WorldFip"}, 671 {PCIC_NETWORK, PCIS_NETWORK_PICMG, "PICMG"}, 672 {PCIC_NETWORK, PCIS_NETWORK_INFINIBAND, "InfiniBand"}, 673 {PCIC_NETWORK, PCIS_NETWORK_HFC, "host fabric"}, 674 {PCIC_DISPLAY, -1, "display"}, 675 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"}, 676 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"}, 677 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"}, 678 {PCIC_MULTIMEDIA, -1, "multimedia"}, 679 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"}, 680 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"}, 681 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TELE, "telephony"}, 682 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_HDA, "HDA"}, 683 {PCIC_MEMORY, -1, "memory"}, 684 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"}, 685 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"}, 686 {PCIC_BRIDGE, -1, "bridge"}, 687 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"}, 688 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"}, 689 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"}, 690 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"}, 691 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"}, 692 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"}, 693 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"}, 694 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"}, 695 {PCIC_BRIDGE, PCIS_BRIDGE_RACEWAY, "PCI-RACEway"}, 696 {PCIC_BRIDGE, PCIS_BRIDGE_PCI_TRANSPARENT, 697 "Semi-transparent PCI-to-PCI"}, 698 {PCIC_BRIDGE, PCIS_BRIDGE_INFINIBAND, "InfiniBand-PCI"}, 699 {PCIC_BRIDGE, PCIS_BRIDGE_AS_PCI, 700 "AdvancedSwitching-PCI"}, 701 {PCIC_SIMPLECOMM, -1, "simple comms"}, 702 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */ 703 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"}, 704 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULSER, "multiport serial"}, 705 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"}, 706 {PCIC_BASEPERIPH, -1, "base peripheral"}, 707 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"}, 708 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"}, 709 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"}, 710 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"}, 711 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PCIHOT, "PCI hot-plug controller"}, 712 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_SDHC, "SD host controller"}, 713 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_IOMMU, "IOMMU"}, 714 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RCEC, 715 "Root Complex Event Collector"}, 716 {PCIC_INPUTDEV, -1, "input device"}, 717 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"}, 718 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"}, 719 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"}, 720 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"}, 721 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"}, 722 {PCIC_DOCKING, -1, "docking station"}, 723 {PCIC_PROCESSOR, -1, "processor"}, 724 {PCIC_SERIALBUS, -1, "serial bus"}, 725 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"}, 726 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"}, 727 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"}, 728 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"}, 729 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"}, 730 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"}, 731 {PCIC_SERIALBUS, PCIS_SERIALBUS_INFINIBAND, "InfiniBand"}, 732 {PCIC_SERIALBUS, PCIS_SERIALBUS_IPMI, "IPMI"}, 733 {PCIC_SERIALBUS, PCIS_SERIALBUS_SERCOS, "SERCOS"}, 734 {PCIC_SERIALBUS, PCIS_SERIALBUS_CANBUS, "CANbus"}, 735 {PCIC_SERIALBUS, PCIS_SERIALBUS_MIPI_I3C, "MIPI I3C"}, 736 {PCIC_WIRELESS, -1, "wireless controller"}, 737 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"}, 738 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "IR"}, 739 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF"}, 740 {PCIC_WIRELESS, PCIS_WIRELESS_BLUETOOTH, "bluetooth"}, 741 {PCIC_WIRELESS, PCIS_WIRELESS_BROADBAND, "broadband"}, 742 {PCIC_WIRELESS, PCIS_WIRELESS_80211A, "ethernet 802.11a"}, 743 {PCIC_WIRELESS, PCIS_WIRELESS_80211B, "ethernet 802.11b"}, 744 {PCIC_WIRELESS, PCIS_WIRELESS_CELL, 745 "cellular controller/modem"}, 746 {PCIC_WIRELESS, PCIS_WIRELESS_CELL_E, 747 "cellular controller/modem plus ethernet"}, 748 {PCIC_INTELLIIO, -1, "intelligent I/O controller"}, 749 {PCIC_INTELLIIO, PCIS_INTELLIIO_I2O, "I2O"}, 750 {PCIC_SATCOM, -1, "satellite communication"}, 751 {PCIC_SATCOM, PCIS_SATCOM_TV, "sat TV"}, 752 {PCIC_SATCOM, PCIS_SATCOM_AUDIO, "sat audio"}, 753 {PCIC_SATCOM, PCIS_SATCOM_VOICE, "sat voice"}, 754 {PCIC_SATCOM, PCIS_SATCOM_DATA, "sat data"}, 755 {PCIC_CRYPTO, -1, "encrypt/decrypt"}, 756 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "network/computer crypto"}, 757 {PCIC_CRYPTO, PCIS_CRYPTO_ENTERTAIN, "entertainment crypto"}, 758 {PCIC_DASP, -1, "dasp"}, 759 {PCIC_DASP, PCIS_DASP_DPIO, "DPIO module"}, 760 {PCIC_DASP, PCIS_DASP_PERFCNTRS, "performance counters"}, 761 {PCIC_DASP, PCIS_DASP_COMM_SYNC, "communication synchronizer"}, 762 {PCIC_DASP, PCIS_DASP_MGMT_CARD, "signal processing management"}, 763 {PCIC_ACCEL, -1, "processing accelerators"}, 764 {PCIC_ACCEL, PCIS_ACCEL_PROCESSING, "processing accelerators"}, 765 {PCIC_INSTRUMENT, -1, "non-essential instrumentation"}, 766 {0, 0, NULL} 767}; 768 769static const char * 770guess_class(struct pci_conf *p) 771{ 772 int i; 773 774 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 775 if (pci_nomatch_tab[i].class == p->pc_class) 776 return(pci_nomatch_tab[i].desc); 777 } 778 return(NULL); 779} 780 781static const char * 782guess_subclass(struct pci_conf *p) 783{ 784 int i; 785 786 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) { 787 if ((pci_nomatch_tab[i].class == p->pc_class) && 788 (pci_nomatch_tab[i].subclass == p->pc_subclass)) 789 return(pci_nomatch_tab[i].desc); 790 } 791 return(NULL); 792} 793 794static int 795load_vendors(void) 796{ 797 const char *dbf; 798 FILE *db; 799 struct pci_vendor_info *cv; 800 struct pci_device_info *cd; 801 char buf[1024], str[1024]; 802 char *ch; 803 int id, error; 804 805 /* 806 * Locate the database and initialise. 807 */ 808 TAILQ_INIT(&pci_vendors); 809 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL) 810 dbf = _PATH_LPCIVDB; 811 if ((db = fopen(dbf, "r")) == NULL) { 812 dbf = _PATH_PCIVDB; 813 if ((db = fopen(dbf, "r")) == NULL) 814 return(1); 815 } 816 cv = NULL; 817 cd = NULL; 818 error = 0; 819 820 /* 821 * Scan input lines from the database 822 */ 823 for (;;) { 824 if (fgets(buf, sizeof(buf), db) == NULL) 825 break; 826 827 if ((ch = strchr(buf, '#')) != NULL) 828 *ch = '\0'; 829 ch = strchr(buf, '\0') - 1; 830 while (ch > buf && isspace(*ch)) 831 *ch-- = '\0'; 832 if (ch <= buf) 833 continue; 834 835 /* Can't handle subvendor / subdevice entries yet */ 836 if (buf[0] == '\t' && buf[1] == '\t') 837 continue; 838 839 /* Check for vendor entry */ 840 if (buf[0] != '\t' && sscanf(buf, "%04x %[^\n]", &id, str) == 2) { 841 if ((id == 0) || (strlen(str) < 1)) 842 continue; 843 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) { 844 warn("allocating vendor entry"); 845 error = 1; 846 break; 847 } 848 if ((cv->desc = strdup(str)) == NULL) { 849 free(cv); 850 warn("allocating vendor description"); 851 error = 1; 852 break; 853 } 854 cv->id = id; 855 TAILQ_INIT(&cv->devs); 856 TAILQ_INSERT_TAIL(&pci_vendors, cv, link); 857 continue; 858 } 859 860 /* Check for device entry */ 861 if (buf[0] == '\t' && sscanf(buf + 1, "%04x %[^\n]", &id, str) == 2) { 862 if ((id == 0) || (strlen(str) < 1)) 863 continue; 864 if (cv == NULL) { 865 warnx("device entry with no vendor!"); 866 continue; 867 } 868 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) { 869 warn("allocating device entry"); 870 error = 1; 871 break; 872 } 873 if ((cd->desc = strdup(str)) == NULL) { 874 free(cd); 875 warn("allocating device description"); 876 error = 1; 877 break; 878 } 879 cd->id = id; 880 TAILQ_INSERT_TAIL(&cv->devs, cd, link); 881 continue; 882 } 883 884 /* It's a comment or junk, ignore it */ 885 } 886 if (ferror(db)) 887 error = 1; 888 fclose(db); 889 890 return(error); 891} 892 893uint32_t 894read_config(int fd, struct pcisel *sel, long reg, int width) 895{ 896 struct pci_io pi; 897 898 pi.pi_sel = *sel; 899 pi.pi_reg = reg; 900 pi.pi_width = width; 901 902 if (ioctl(fd, PCIOCREAD, &pi) < 0) 903 err(1, "ioctl(PCIOCREAD)"); 904 905 return (pi.pi_data); 906} 907 908static struct pcisel 909getdevice(const char *name) 910{ 911 struct pci_conf_io pc; 912 struct pci_conf conf[1]; 913 struct pci_match_conf patterns[1]; 914 char *cp; 915 int fd; 916 917 fd = open(_PATH_DEVPCI, O_RDONLY, 0); 918 if (fd < 0) 919 err(1, "%s", _PATH_DEVPCI); 920 921 bzero(&pc, sizeof(struct pci_conf_io)); 922 pc.match_buf_len = sizeof(conf); 923 pc.matches = conf; 924 925 bzero(&patterns, sizeof(patterns)); 926 927 /* 928 * The pattern structure requires the unit to be split out from 929 * the driver name. Walk backwards from the end of the name to 930 * find the start of the unit. 931 */ 932 if (name[0] == '\0') 933 errx(1, "Empty device name"); 934 cp = strchr(name, '\0'); 935 assert(cp != NULL && cp != name); 936 cp--; 937 while (cp != name && isdigit(cp[-1])) 938 cp--; 939 if (cp == name || !isdigit(*cp)) 940 errx(1, "Invalid device name"); 941 if ((size_t)(cp - name) + 1 > sizeof(patterns[0].pd_name)) 942 errx(1, "Device name is too long"); 943 memcpy(patterns[0].pd_name, name, cp - name); 944 patterns[0].pd_unit = strtol(cp, &cp, 10); 945 if (*cp != '\0') 946 errx(1, "Invalid device name"); 947 patterns[0].flags = PCI_GETCONF_MATCH_NAME | PCI_GETCONF_MATCH_UNIT; 948 pc.num_patterns = 1; 949 pc.pat_buf_len = sizeof(patterns); 950 pc.patterns = patterns; 951 952 if (ioctl(fd, PCIOCGETCONF, &pc) == -1) 953 err(1, "ioctl(PCIOCGETCONF)"); 954 if (pc.status != PCI_GETCONF_LAST_DEVICE && 955 pc.status != PCI_GETCONF_MORE_DEVS) 956 errx(1, "error returned from PCIOCGETCONF ioctl"); 957 close(fd); 958 if (pc.num_matches == 0) 959 errx(1, "Device not found"); 960 return (conf[0].pc_sel); 961} 962 963static struct pcisel 964parsesel(const char *str) 965{ 966 const char *ep; 967 char *eppos; 968 struct pcisel sel; 969 unsigned long selarr[4]; 970 int i; 971 972 ep = strchr(str, '@'); 973 if (ep != NULL) 974 ep++; 975 else 976 ep = str; 977 978 if (strncmp(ep, "pci", 3) == 0) { 979 ep += 3; 980 i = 0; 981 while (isdigit(*ep) && i < 4) { 982 selarr[i++] = strtoul(ep, &eppos, 10); 983 ep = eppos; 984 if (*ep == ':') 985 ep++; 986 } 987 if (i > 0 && *ep == '\0') { 988 sel.pc_func = (i > 2) ? selarr[--i] : 0; 989 sel.pc_dev = (i > 0) ? selarr[--i] : 0; 990 sel.pc_bus = (i > 0) ? selarr[--i] : 0; 991 sel.pc_domain = (i > 0) ? selarr[--i] : 0; 992 return (sel); 993 } 994 } 995 errx(1, "cannot parse selector %s", str); 996} 997 998static struct pcisel 999getsel(const char *str) 1000{ 1001 1002 /* 1003 * No device names contain colons and selectors always contain 1004 * at least one colon. 1005 */ 1006 if (strchr(str, ':') == NULL) 1007 return (getdevice(str)); 1008 else 1009 return (parsesel(str)); 1010} 1011 1012static void 1013readone(int fd, struct pcisel *sel, long reg, int width) 1014{ 1015 1016 printf("%0*x", width*2, read_config(fd, sel, reg, width)); 1017} 1018 1019static void 1020readit(const char *name, const char *reg, int width) 1021{ 1022 long rstart; 1023 long rend; 1024 long r; 1025 char *end; 1026 int i; 1027 int fd; 1028 struct pcisel sel; 1029 1030 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1031 if (fd < 0) 1032 err(1, "%s", _PATH_DEVPCI); 1033 1034 rend = rstart = strtol(reg, &end, 0); 1035 if (end && *end == ':') { 1036 end++; 1037 rend = strtol(end, (char **) 0, 0); 1038 } 1039 sel = getsel(name); 1040 for (i = 1, r = rstart; r <= rend; i++, r += width) { 1041 readone(fd, &sel, r, width); 1042 if (i && !(i % 8)) 1043 putchar(' '); 1044 putchar(i % (16/width) ? ' ' : '\n'); 1045 } 1046 if (i % (16/width) != 1) 1047 putchar('\n'); 1048 close(fd); 1049} 1050 1051static void 1052writeit(const char *name, const char *reg, const char *data, int width) 1053{ 1054 int fd; 1055 struct pci_io pi; 1056 1057 pi.pi_sel = getsel(name); 1058 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */ 1059 pi.pi_width = width; 1060 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */ 1061 1062 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1063 if (fd < 0) 1064 err(1, "%s", _PATH_DEVPCI); 1065 1066 if (ioctl(fd, PCIOCWRITE, &pi) < 0) 1067 err(1, "ioctl(PCIOCWRITE)"); 1068 close(fd); 1069} 1070 1071static void 1072chkattached(const char *name) 1073{ 1074 int fd; 1075 struct pci_io pi; 1076 1077 pi.pi_sel = getsel(name); 1078 1079 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1080 if (fd < 0) 1081 err(1, "%s", _PATH_DEVPCI); 1082 1083 if (ioctl(fd, PCIOCATTACHED, &pi) < 0) 1084 err(1, "ioctl(PCIOCATTACHED)"); 1085 1086 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */ 1087 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached"); 1088 close(fd); 1089} 1090 1091static void 1092dump_bar(const char *name, const char *reg, const char *bar_start, 1093 const char *bar_count, int width, int verbose) 1094{ 1095 struct pci_bar_mmap pbm; 1096 uint32_t *dd; 1097 uint16_t *dh; 1098 uint8_t *db; 1099 uint64_t *dx, a, start, count; 1100 char *el; 1101 size_t res; 1102 int fd; 1103 1104 start = 0; 1105 if (bar_start != NULL) { 1106 start = strtoul(bar_start, &el, 0); 1107 if (*el != '\0') 1108 errx(1, "Invalid bar start specification %s", 1109 bar_start); 1110 } 1111 count = 0; 1112 if (bar_count != NULL) { 1113 count = strtoul(bar_count, &el, 0); 1114 if (*el != '\0') 1115 errx(1, "Invalid count specification %s", 1116 bar_count); 1117 } 1118 1119 pbm.pbm_sel = getsel(name); 1120 pbm.pbm_reg = strtoul(reg, &el, 0); 1121 if (*reg == '\0' || *el != '\0') 1122 errx(1, "Invalid bar specification %s", reg); 1123 pbm.pbm_flags = 0; 1124 pbm.pbm_memattr = VM_MEMATTR_DEVICE; 1125 1126 fd = open(_PATH_DEVPCI, O_RDWR, 0); 1127 if (fd < 0) 1128 err(1, "%s", _PATH_DEVPCI); 1129 1130 if (ioctl(fd, PCIOCBARMMAP, &pbm) < 0) 1131 err(1, "ioctl(PCIOCBARMMAP)"); 1132 1133 if (count == 0) 1134 count = pbm.pbm_bar_length / width; 1135 if (start + count < start || (start + count) * width < (uint64_t)width) 1136 errx(1, "(start + count) x width overflow"); 1137 if ((start + count) * width > pbm.pbm_bar_length) { 1138 if (start * width > pbm.pbm_bar_length) 1139 count = 0; 1140 else 1141 count = (pbm.pbm_bar_length - start * width) / width; 1142 } 1143 if (verbose) { 1144 fprintf(stderr, 1145 "Dumping pci%d:%d:%d:%d BAR %x mapped base %p " 1146 "off %#x length %#jx from %#jx count %#jx in %d-bytes\n", 1147 pbm.pbm_sel.pc_domain, pbm.pbm_sel.pc_bus, 1148 pbm.pbm_sel.pc_dev, pbm.pbm_sel.pc_func, 1149 pbm.pbm_reg, pbm.pbm_map_base, pbm.pbm_bar_off, 1150 pbm.pbm_bar_length, start, count, width); 1151 } 1152 switch (width) { 1153 case 1: 1154 db = (uint8_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1155 pbm.pbm_bar_off + start * width); 1156 for (a = 0; a < count; a += width, db++) { 1157 res = fwrite(db, width, 1, stdout); 1158 if (res != 1) { 1159 errx(1, "error writing to stdout"); 1160 break; 1161 } 1162 } 1163 break; 1164 case 2: 1165 dh = (uint16_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1166 pbm.pbm_bar_off + start * width); 1167 for (a = 0; a < count; a += width, dh++) { 1168 res = fwrite(dh, width, 1, stdout); 1169 if (res != 1) { 1170 errx(1, "error writing to stdout"); 1171 break; 1172 } 1173 } 1174 break; 1175 case 4: 1176 dd = (uint32_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1177 pbm.pbm_bar_off + start * width); 1178 for (a = 0; a < count; a += width, dd++) { 1179 res = fwrite(dd, width, 1, stdout); 1180 if (res != 1) { 1181 errx(1, "error writing to stdout"); 1182 break; 1183 } 1184 } 1185 break; 1186 case 8: 1187 dx = (uint64_t *)(uintptr_t)((uintptr_t)pbm.pbm_map_base + 1188 pbm.pbm_bar_off + start * width); 1189 for (a = 0; a < count; a += width, dx++) { 1190 res = fwrite(dx, width, 1, stdout); 1191 if (res != 1) { 1192 errx(1, "error writing to stdout"); 1193 break; 1194 } 1195 } 1196 break; 1197 default: 1198 errx(1, "invalid access width"); 1199 } 1200 1201 munmap((void *)pbm.pbm_map_base, pbm.pbm_map_length); 1202 close(fd); 1203} 1204