lspci.c

   1 /*
   2  *      The PCI Utilities -- List All PCI Devices
   3  *
   4  *      Copyright (c) 1997--2008 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11 #include <stdlib.h>
  12 #include <stdarg.h>
  13 #include <unistd.h>
  14
  15 #include "lspci.h"
  16
  17 /* Options */
  18
  19 int verbose;                            /* Show detailed information */
  20 static int opt_hex;                     /* Show contents of config space as hexadecimal numbers */
  21 struct pci_filter filter;               /* Device filter */
  22 static int opt_tree;                    /* Show bus tree */
  23 static int opt_machine;                 /* Generate machine-readable output */
  24 static int opt_map_mode;                /* Bus mapping mode enabled */
  25 static int opt_domains;                 /* Show domain numbers (0=disabled, 1=auto-detected, 2=requested) */
  26 static int opt_kernel;                  /* Show kernel drivers */
  27 static int opt_query_dns;               /* Query the DNS (0=disabled, 1=enabled, 2=refresh cache) */
  28 static int opt_query_all;               /* Query the DNS for all entries */
  29 char *opt_pcimap;                       /* Override path to Linux modules.pcimap */
  30
  31 const char program_name[] = "lspci";
  32
  33 static char options[] = "nvbxs:d:ti:mgp:qkMDQ" GENERIC_OPTIONS ;
  34
  35 static char help_msg[] =
  36 "Usage: lspci [<switches>]\n"
  37 "\n"
  38 "Basic display modes:\n"
  39 "-mm\t\tProduce machine-readable output (single -m for an obsolete format)\n"
  40 "-t\t\tShow bus tree\n"
  41 "\n"
  42 "Display options:\n"
  43 "-v\t\tBe verbose (-vv for very verbose)\n"
  44 #ifdef PCI_OS_LINUX
  45 "-k\t\tShow kernel drivers handling each device\n"
  46 #endif
  47 "-x\t\tShow hex-dump of the standard part of the config space\n"
  48 "-xxx\t\tShow hex-dump of the whole config space (dangerous; root only)\n"
  49 "-xxxx\t\tShow hex-dump of the 4096-byte extended config space (root only)\n"
  50 "-b\t\tBus-centric view (addresses and IRQ's as seen by the bus)\n"
  51 "-D\t\tAlways show domain numbers\n"
  52 "\n"
  53 "Resolving of device ID's to names:\n"
  54 "-n\t\tShow numeric ID's\n"
  55 "-nn\t\tShow both textual and numeric ID's (names & numbers)\n"
  56 #ifdef PCI_USE_DNS
  57 "-q\t\tQuery the PCI ID database for unknown ID's via DNS\n"
  58 "-qq\t\tAs above, but re-query locally cached entries\n"
  59 "-Q\t\tQuery the PCI ID database for all ID's via DNS\n"
  60 #endif
  61 "\n"
  62 "Selection of devices:\n"
  63 "-s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]\tShow only devices in selected slots\n"
  64 "-d [<vendor>]:[<device>]\t\t\tShow only devices with specified ID's\n"
  65 "\n"
  66 "Other options:\n"
  67 "-i <file>\tUse specified ID database instead of %s\n"
  68 #ifdef PCI_OS_LINUX
  69 "-p <file>\tLook up kernel modules in a given file instead of default modules.pcimap\n"
  70 #endif
  71 "-M\t\tEnable `bus mapping' mode (dangerous; root only)\n"
  72 "\n"
  73 "PCI access options:\n"
  74 GENERIC_HELP
  75 ;
  76
  77 /*** Our view of the PCI bus ***/
  78
  79 struct pci_access *pacc;
  80 struct device *first_dev;
  81 static int seen_errors;
  82
  83 int
  84 config_fetch(struct device *d, unsigned int pos, unsigned int len)
  85 {
  86   unsigned int end = pos+len;
  87   int result;
  88
  89   while (pos < d->config_bufsize && len && d->present[pos])
  90     pos++, len--;
  91   while (pos+len <= d->config_bufsize && len && d->present[pos+len-1])
  92     len--;
  93   if (!len)
  94     return 1;
  95
  96   if (end > d->config_bufsize)
  97     {
  98       int orig_size = d->config_bufsize;
  99       while (end > d->config_bufsize)
 100         d->config_bufsize *= 2;
 101       d->config = xrealloc(d->config, d->config_bufsize);
 102       d->present = xrealloc(d->present, d->config_bufsize);
 103       memset(d->present + orig_size, 0, d->config_bufsize - orig_size);
 104     }
 105   result = pci_read_block(d->dev, pos, d->config + pos, len);
 106   if (result)
 107     memset(d->present + pos, 1, len);
 108   return result;
 109 }
 110
 111 struct device *
 112 scan_device(struct pci_dev *p)
 113 {
 114   struct device *d;
 115
 116   if (p->domain && !opt_domains)
 117     opt_domains = 1;
 118   if (!pci_filter_match(&filter, p))
 119     return NULL;
 120   d = xmalloc(sizeof(struct device));
 121   memset(d, 0, sizeof(*d));
 122   d->dev = p;
 123   d->config_cached = d->config_bufsize = 64;
 124   d->config = xmalloc(64);
 125   d->present = xmalloc(64);
 126   memset(d->present, 1, 64);
 127   if (!pci_read_block(p, 0, d->config, 64))
 128     {
 129       fprintf(stderr, "lspci: Unable to read the standard configuration space header of device %04x:%02x:%02x.%d\n",
 130               p->domain, p->bus, p->dev, p->func);
 131       seen_errors++;
 132       return NULL;
 133     }
 134   if ((d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
 135     {
 136       /* For cardbus bridges, we need to fetch 64 bytes more to get the
 137        * full standard header... */
 138       if (config_fetch(d, 64, 64))
 139         d->config_cached += 64;
 140     }
 141   pci_setup_cache(p, d->config, d->config_cached);
 142   pci_fill_info(p, PCI_FILL_IDENT | PCI_FILL_CLASS | PCI_FILL_IRQ | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES | PCI_FILL_PHYS_SLOT);
 143   return d;
 144 }
 145
 146 static void
 147 scan_devices(void)
 148 {
 149   struct device *d;
 150   struct pci_dev *p;
 151
 152   pci_scan_bus(pacc);
 153   for (p=pacc->devices; p; p=p->next)
 154     if (d = scan_device(p))
 155       {
 156         d->next = first_dev;
 157         first_dev = d;
 158       }
 159 }
 160
 161 /*** Config space accesses ***/
 162
 163 static void
 164 check_conf_range(struct device *d, unsigned int pos, unsigned int len)
 165 {
 166   while (len)
 167     if (!d->present[pos])
 168       die("Internal bug: Accessing non-read configuration byte at position %x", pos);
 169     else
 170       pos++, len--;
 171 }
 172
 173 byte
 174 get_conf_byte(struct device *d, unsigned int pos)
 175 {
 176   check_conf_range(d, pos, 1);
 177   return d->config[pos];
 178 }
 179
 180 word
 181 get_conf_word(struct device *d, unsigned int pos)
 182 {
 183   check_conf_range(d, pos, 2);
 184   return d->config[pos] | (d->config[pos+1] << 8);
 185 }
 186
 187 u32
 188 get_conf_long(struct device *d, unsigned int pos)
 189 {
 190   check_conf_range(d, pos, 4);
 191   return d->config[pos] |
 192     (d->config[pos+1] << 8) |
 193     (d->config[pos+2] << 16) |
 194     (d->config[pos+3] << 24);
 195 }
 196
 197 /*** Sorting ***/
 198
 199 static int
 200 compare_them(const void *A, const void *B)
 201 {
 202   const struct pci_dev *a = (*(const struct device **)A)->dev;
 203   const struct pci_dev *b = (*(const struct device **)B)->dev;
 204
 205   if (a->domain < b->domain)
 206     return -1;
 207   if (a->domain > b->domain)
 208     return 1;
 209   if (a->bus < b->bus)
 210     return -1;
 211   if (a->bus > b->bus)
 212     return 1;
 213   if (a->dev < b->dev)
 214     return -1;
 215   if (a->dev > b->dev)
 216     return 1;
 217   if (a->func < b->func)
 218     return -1;
 219   if (a->func > b->func)
 220     return 1;
 221   return 0;
 222 }
 223
 224 static void
 225 sort_them(void)
 226 {
 227   struct device **index, **h, **last_dev;
 228   int cnt;
 229   struct device *d;
 230
 231   cnt = 0;
 232   for (d=first_dev; d; d=d->next)
 233     cnt++;
 234   h = index = alloca(sizeof(struct device *) * cnt);
 235   for (d=first_dev; d; d=d->next)
 236     *h++ = d;
 237   qsort(index, cnt, sizeof(struct device *), compare_them);
 238   last_dev = &first_dev;
 239   h = index;
 240   while (cnt--)
 241     {
 242       *last_dev = *h;
 243       last_dev = &(*h)->next;
 244       h++;
 245     }
 246   *last_dev = NULL;
 247 }
 248
 249 /*** Normal output ***/
 250
 251 static void
 252 show_slot_name(struct device *d)
 253 {
 254   struct pci_dev *p = d->dev;
 255
 256   if (!opt_machine ? opt_domains : (p->domain || opt_domains >= 2))
 257     printf("%04x:", p->domain);
 258   printf("%02x:%02x.%d", p->bus, p->dev, p->func);
 259 }
 260
 261 void
 262 get_subid(struct device *d, word *subvp, word *subdp)
 263 {
 264   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 265
 266   if (htype == PCI_HEADER_TYPE_NORMAL)
 267     {
 268       *subvp = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
 269       *subdp = get_conf_word(d, PCI_SUBSYSTEM_ID);
 270     }
 271   else if (htype == PCI_HEADER_TYPE_CARDBUS && d->config_cached >= 128)
 272     {
 273       *subvp = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
 274       *subdp = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
 275     }
 276   else
 277     *subvp = *subdp = 0xffff;
 278 }
 279
 280 static void
 281 show_terse(struct device *d)
 282 {
 283   int c;
 284   struct pci_dev *p = d->dev;
 285   char classbuf[128], devbuf[128];
 286
 287   show_slot_name(d);
 288   printf(" %s: %s",
 289          pci_lookup_name(pacc, classbuf, sizeof(classbuf),
 290                          PCI_LOOKUP_CLASS,
 291                          p->device_class),
 292          pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 293                          PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 294                          p->vendor_id, p->device_id));
 295   if (c = get_conf_byte(d, PCI_REVISION_ID))
 296     printf(" (rev %02x)", c);
 297   if (verbose)
 298     {
 299       char *x;
 300       c = get_conf_byte(d, PCI_CLASS_PROG);
 301       x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 302                           PCI_LOOKUP_PROGIF | PCI_LOOKUP_NO_NUMBERS,
 303                           p->device_class, c);
 304       if (c || x)
 305         {
 306           printf(" (prog-if %02x", c);
 307           if (x)
 308             printf(" [%s]", x);
 309           putchar(')');
 310         }
 311     }
 312   putchar('\n');
 313
 314   if (verbose || opt_kernel)
 315     {
 316       word subsys_v, subsys_d;
 317       char ssnamebuf[256];
 318
 319       get_subid(d, &subsys_v, &subsys_d);
 320       if (subsys_v && subsys_v != 0xffff)
 321         printf("\tSubsystem: %s\n",
 322                 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
 323                         PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 324                         p->vendor_id, p->device_id, subsys_v, subsys_d));
 325     }
 326 }
 327
 328 /*** Verbose output ***/
 329
 330 static void
 331 show_size(pciaddr_t x)
 332 {
 333   static const char suffix[][4] = { "", "KiB", "MiB", "GiB", "TiB" };
 334   unsigned i;
 335   if (!x)
 336     return;
 337   for (i = 0; i < (sizeof(suffix) / sizeof(*suffix) - 1); i++) {
 338     if (x < 1024)
 339       break;
 340     x /= 1024;
 341   }
 342   printf(" [size=%u%s]", (unsigned)x, suffix[i]);
 343 }
 344
 345 static void
 346 show_bases(struct device *d, int cnt)
 347 {
 348   struct pci_dev *p = d->dev;
 349   word cmd = get_conf_word(d, PCI_COMMAND);
 350   int i;
 351   int virtual = 0;
 352
 353   for (i=0; i<cnt; i++)
 354     {
 355       pciaddr_t pos = p->base_addr[i];
 356       pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
 357       u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 358       if (flg == 0xffffffff)
 359         flg = 0;
 360       if (!pos && !flg && !len)
 361         continue;
 362       if (verbose > 1)
 363         printf("\tRegion %d: ", i);
 364       else
 365         putchar('\t');
 366       if (pos && !flg)                  /* Reported by the OS, but not by the device */
 367         {
 368           printf("[virtual] ");
 369           flg = pos;
 370           virtual = 1;
 371         }
 372       if (flg & PCI_BASE_ADDRESS_SPACE_IO)
 373         {
 374           pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
 375           printf("I/O ports at ");
 376           if (a)
 377             printf(PCIADDR_PORT_FMT, a);
 378           else if (flg & PCI_BASE_ADDRESS_IO_MASK)
 379             printf("<ignored>");
 380           else
 381             printf("<unassigned>");
 382           if (!virtual && !(cmd & PCI_COMMAND_IO))
 383             printf(" [disabled]");
 384         }
 385       else
 386         {
 387           int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
 388           pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
 389           int done = 0;
 390           u32 z = 0;
 391
 392           printf("Memory at ");
 393           if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
 394             {
 395               if (i >= cnt - 1)
 396                 {
 397                   printf("<invalid-64bit-slot>");
 398                   done = 1;
 399                 }
 400               else
 401                 {
 402                   i++;
 403                   z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 404                 }
 405             }
 406           if (!done)
 407             {
 408               if (a)
 409                 printf(PCIADDR_T_FMT, a);
 410               else
 411                 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
 412             }
 413           printf(" (%s, %sprefetchable)",
 414                  (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
 415                  (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
 416                  (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
 417                  (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
 418           if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 419             printf(" [disabled]");
 420         }
 421       show_size(len);
 422       putchar('\n');
 423     }
 424 }
 425
 426 static void
 427 show_rom(struct device *d, int reg)
 428 {
 429   struct pci_dev *p = d->dev;
 430   pciaddr_t rom = p->rom_base_addr;
 431   pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
 432   u32 flg = get_conf_long(d, reg);
 433   word cmd = get_conf_word(d, PCI_COMMAND);
 434   int virtual = 0;
 435
 436   if (!rom && !flg && !len)
 437     return;
 438   putchar('\t');
 439   if ((rom & PCI_ROM_ADDRESS_MASK) && !(flg & PCI_ROM_ADDRESS_MASK))
 440     {
 441       printf("[virtual] ");
 442       flg = rom;
 443       virtual = 1;
 444     }
 445   printf("Expansion ROM at ");
 446   if (rom & PCI_ROM_ADDRESS_MASK)
 447     printf(PCIADDR_T_FMT, rom & PCI_ROM_ADDRESS_MASK);
 448   else if (flg & PCI_ROM_ADDRESS_MASK)
 449     printf("<ignored>");
 450   else
 451     printf("<unassigned>");
 452   if (!(flg & PCI_ROM_ADDRESS_ENABLE))
 453     printf(" [disabled]");
 454   else if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 455     printf(" [disabled by cmd]");
 456   show_size(len);
 457   putchar('\n');
 458 }
 459
 460 static void
 461 show_htype0(struct device *d)
 462 {
 463   show_bases(d, 6);
 464   show_rom(d, PCI_ROM_ADDRESS);
 465   show_caps(d);
 466 }
 467
 468 static void
 469 show_htype1(struct device *d)
 470 {
 471   u32 io_base = get_conf_byte(d, PCI_IO_BASE);
 472   u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
 473   u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
 474   u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
 475   u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
 476   u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
 477   u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
 478   u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
 479   u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
 480   word sec_stat = get_conf_word(d, PCI_SEC_STATUS);
 481   word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
 482   int verb = verbose > 2;
 483
 484   show_bases(d, 2);
 485   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 486          get_conf_byte(d, PCI_PRIMARY_BUS),
 487          get_conf_byte(d, PCI_SECONDARY_BUS),
 488          get_conf_byte(d, PCI_SUBORDINATE_BUS),
 489          get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
 490
 491   if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
 492       (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
 493     printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
 494   else
 495     {
 496       io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
 497       io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
 498       if (io_type == PCI_IO_RANGE_TYPE_32)
 499         {
 500           io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
 501           io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
 502         }
 503       if (io_base <= io_limit || verb)
 504         printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
 505     }
 506
 507   if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
 508       mem_type)
 509     printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
 510   else
 511     {
 512       mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
 513       mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
 514       if (mem_base <= mem_limit || verb)
 515         printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
 516     }
 517
 518   if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
 519       (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
 520     printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
 521   else
 522     {
 523       pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
 524       pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
 525       if (pref_base <= pref_limit || verb)
 526         {
 527           if (pref_type == PCI_PREF_RANGE_TYPE_32)
 528             printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
 529           else
 530             printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
 531                    get_conf_long(d, PCI_PREF_BASE_UPPER32),
 532                    pref_base,
 533                    get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
 534                    pref_limit + 0xfffff);
 535         }
 536     }
 537
 538   if (verbose > 1)
 539     printf("\tSecondary status: 66MHz%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c <SERR%c <PERR%c\n",
 540              FLAG(sec_stat, PCI_STATUS_66MHZ),
 541              FLAG(sec_stat, PCI_STATUS_FAST_BACK),
 542              FLAG(sec_stat, PCI_STATUS_PARITY),
 543              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 544              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 545              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 546              FLAG(sec_stat, PCI_STATUS_SIG_TARGET_ABORT),
 547              FLAG(sec_stat, PCI_STATUS_REC_TARGET_ABORT),
 548              FLAG(sec_stat, PCI_STATUS_REC_MASTER_ABORT),
 549              FLAG(sec_stat, PCI_STATUS_SIG_SYSTEM_ERROR),
 550              FLAG(sec_stat, PCI_STATUS_DETECTED_PARITY));
 551
 552   show_rom(d, PCI_ROM_ADDRESS1);
 553
 554   if (verbose > 1)
 555     {
 556       printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
 557         FLAG(brc, PCI_BRIDGE_CTL_PARITY),
 558         FLAG(brc, PCI_BRIDGE_CTL_SERR),
 559         FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
 560         FLAG(brc, PCI_BRIDGE_CTL_VGA),
 561         FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
 562         FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
 563         FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
 564       printf("\t\tPriDiscTmr%c SecDiscTmr%c DiscTmrStat%c DiscTmrSERREn%c\n",
 565         FLAG(brc, PCI_BRIDGE_CTL_PRI_DISCARD_TIMER),
 566         FLAG(brc, PCI_BRIDGE_CTL_SEC_DISCARD_TIMER),
 567         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_STATUS),
 568         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_SERR_EN));
 569     }
 570
 571   show_caps(d);
 572 }
 573
 574 static void
 575 show_htype2(struct device *d)
 576 {
 577   int i;
 578   word cmd = get_conf_word(d, PCI_COMMAND);
 579   word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
 580   word exca;
 581   int verb = verbose > 2;
 582
 583   show_bases(d, 1);
 584   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 585          get_conf_byte(d, PCI_CB_PRIMARY_BUS),
 586          get_conf_byte(d, PCI_CB_CARD_BUS),
 587          get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
 588          get_conf_byte(d, PCI_CB_LATENCY_TIMER));
 589   for (i=0; i<2; i++)
 590     {
 591       int p = 8*i;
 592       u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
 593       u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
 594       if (limit > base || verb)
 595         printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
 596                (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
 597                (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
 598     }
 599   for (i=0; i<2; i++)
 600     {
 601       int p = 8*i;
 602       u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
 603       u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
 604       if (!(base & PCI_IO_RANGE_TYPE_32))
 605         {
 606           base &= 0xffff;
 607           limit &= 0xffff;
 608         }
 609       base &= PCI_CB_IO_RANGE_MASK;
 610       limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
 611       if (base <= limit || verb)
 612         printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
 613                (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
 614     }
 615
 616   if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
 617     printf("\tSecondary status: SERR\n");
 618   if (verbose > 1)
 619     printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
 620            FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
 621            FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
 622            FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
 623            FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
 624            FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
 625            FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
 626            FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
 627            FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
 628
 629   if (d->config_cached < 128)
 630     {
 631       printf("\t<access denied to the rest>\n");
 632       return;
 633     }
 634
 635   exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
 636   if (exca)
 637     printf("\t16-bit legacy interface ports at %04x\n", exca);
 638 }
 639
 640 static void
 641 show_verbose(struct device *d)
 642 {
 643   struct pci_dev *p = d->dev;
 644   word status = get_conf_word(d, PCI_STATUS);
 645   word cmd = get_conf_word(d, PCI_COMMAND);
 646   word class = p->device_class;
 647   byte bist = get_conf_byte(d, PCI_BIST);
 648   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 649   byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
 650   byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
 651   byte max_lat, min_gnt;
 652   byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
 653   unsigned int irq = p->irq;
 654
 655   show_terse(d);
 656
 657   switch (htype)
 658     {
 659     case PCI_HEADER_TYPE_NORMAL:
 660       if (class == PCI_CLASS_BRIDGE_PCI)
 661         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 662       max_lat = get_conf_byte(d, PCI_MAX_LAT);
 663       min_gnt = get_conf_byte(d, PCI_MIN_GNT);
 664       break;
 665     case PCI_HEADER_TYPE_BRIDGE:
 666       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 667         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 668       irq = int_pin = min_gnt = max_lat = 0;
 669       break;
 670     case PCI_HEADER_TYPE_CARDBUS:
 671       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 672         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 673       min_gnt = max_lat = 0;
 674       break;
 675     default:
 676       printf("\t!!! Unknown header type %02x\n", htype);
 677       return;
 678     }
 679
 680   if (p->phy_slot)
 681     printf("\tPhysical Slot: %s\n", p->phy_slot);
 682
 683   if (verbose > 1)
 684     {
 685       printf("\tControl: I/O%c Mem%c BusMaster%c SpecCycle%c MemWINV%c VGASnoop%c ParErr%c Stepping%c SERR%c FastB2B%c DisINTx%c\n",
 686              FLAG(cmd, PCI_COMMAND_IO),
 687              FLAG(cmd, PCI_COMMAND_MEMORY),
 688              FLAG(cmd, PCI_COMMAND_MASTER),
 689              FLAG(cmd, PCI_COMMAND_SPECIAL),
 690              FLAG(cmd, PCI_COMMAND_INVALIDATE),
 691              FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
 692              FLAG(cmd, PCI_COMMAND_PARITY),
 693              FLAG(cmd, PCI_COMMAND_WAIT),
 694              FLAG(cmd, PCI_COMMAND_SERR),
 695              FLAG(cmd, PCI_COMMAND_FAST_BACK),
 696              FLAG(cmd, PCI_COMMAND_DISABLE_INTx));
 697       printf("\tStatus: Cap%c 66MHz%c UDF%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c >SERR%c <PERR%c INTx%c\n",
 698              FLAG(status, PCI_STATUS_CAP_LIST),
 699              FLAG(status, PCI_STATUS_66MHZ),
 700              FLAG(status, PCI_STATUS_UDF),
 701              FLAG(status, PCI_STATUS_FAST_BACK),
 702              FLAG(status, PCI_STATUS_PARITY),
 703              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 704              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 705              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 706              FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
 707              FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
 708              FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
 709              FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
 710              FLAG(status, PCI_STATUS_DETECTED_PARITY),
 711              FLAG(status, PCI_STATUS_INTx));
 712       if (cmd & PCI_COMMAND_MASTER)
 713         {
 714           printf("\tLatency: %d", latency);
 715           if (min_gnt || max_lat)
 716             {
 717               printf(" (");
 718               if (min_gnt)
 719                 printf("%dns min", min_gnt*250);
 720               if (min_gnt && max_lat)
 721                 printf(", ");
 722               if (max_lat)
 723                 printf("%dns max", max_lat*250);
 724               putchar(')');
 725             }
 726           if (cache_line)
 727             printf(", Cache Line Size: %d bytes", cache_line * 4);
 728           putchar('\n');
 729         }
 730       if (int_pin || irq)
 731         printf("\tInterrupt: pin %c routed to IRQ " PCIIRQ_FMT "\n",
 732                (int_pin ? 'A' + int_pin - 1 : '?'), irq);
 733     }
 734   else
 735     {
 736       printf("\tFlags: ");
 737       if (cmd & PCI_COMMAND_MASTER)
 738         printf("bus master, ");
 739       if (cmd & PCI_COMMAND_VGA_PALETTE)
 740         printf("VGA palette snoop, ");
 741       if (cmd & PCI_COMMAND_WAIT)
 742         printf("stepping, ");
 743       if (cmd & PCI_COMMAND_FAST_BACK)
 744         printf("fast Back2Back, ");
 745       if (status & PCI_STATUS_66MHZ)
 746         printf("66MHz, ");
 747       if (status & PCI_STATUS_UDF)
 748         printf("user-definable features, ");
 749       printf("%s devsel",
 750              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 751              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 752              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
 753       if (cmd & PCI_COMMAND_MASTER)
 754         printf(", latency %d", latency);
 755       if (irq)
 756         printf(", IRQ " PCIIRQ_FMT, irq);
 757       putchar('\n');
 758     }
 759
 760   if (bist & PCI_BIST_CAPABLE)
 761     {
 762       if (bist & PCI_BIST_START)
 763         printf("\tBIST is running\n");
 764       else
 765         printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
 766     }
 767
 768   switch (htype)
 769     {
 770     case PCI_HEADER_TYPE_NORMAL:
 771       show_htype0(d);
 772       break;
 773     case PCI_HEADER_TYPE_BRIDGE:
 774       show_htype1(d);
 775       break;
 776     case PCI_HEADER_TYPE_CARDBUS:
 777       show_htype2(d);
 778       break;
 779     }
 780 }
 781
 782 /*** Machine-readable dumps ***/
 783
 784 static void
 785 show_hex_dump(struct device *d)
 786 {
 787   unsigned int i, cnt;
 788
 789   cnt = d->config_cached;
 790   if (opt_hex >= 3 && config_fetch(d, cnt, 256-cnt))
 791     {
 792       cnt = 256;
 793       if (opt_hex >= 4 && config_fetch(d, 256, 4096-256))
 794         cnt = 4096;
 795     }
 796
 797   for (i=0; i<cnt; i++)
 798     {
 799       if (! (i & 15))
 800         printf("%02x:", i);
 801       printf(" %02x", get_conf_byte(d, i));
 802       if ((i & 15) == 15)
 803         putchar('\n');
 804     }
 805 }
 806
 807 static void
 808 print_shell_escaped(char *c)
 809 {
 810   printf(" \"");
 811   while (*c)
 812     {
 813       if (*c == '"' || *c == '\\')
 814         putchar('\\');
 815       putchar(*c++);
 816     }
 817   putchar('"');
 818 }
 819
 820 static void
 821 show_machine(struct device *d)
 822 {
 823   struct pci_dev *p = d->dev;
 824   int c;
 825   word sv_id, sd_id;
 826   char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
 827
 828   get_subid(d, &sv_id, &sd_id);
 829
 830   if (verbose)
 831     {
 832       printf((opt_machine >= 2) ? "Slot:\t" : "Device:\t");
 833       show_slot_name(d);
 834       putchar('\n');
 835       printf("Class:\t%s\n",
 836              pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 837       printf("Vendor:\t%s\n",
 838              pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 839       printf("Device:\t%s\n",
 840              pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 841       if (sv_id && sv_id != 0xffff)
 842         {
 843           printf("SVendor:\t%s\n",
 844                  pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 845           printf("SDevice:\t%s\n",
 846                  pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 847         }
 848       if (p->phy_slot)
 849         printf("PhySlot:\t%s\n", p->phy_slot);
 850       if (c = get_conf_byte(d, PCI_REVISION_ID))
 851         printf("Rev:\t%02x\n", c);
 852       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 853         printf("ProgIf:\t%02x\n", c);
 854       if (opt_kernel)
 855         show_kernel_machine(d);
 856     }
 857   else
 858     {
 859       show_slot_name(d);
 860       print_shell_escaped(pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 861       print_shell_escaped(pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 862       print_shell_escaped(pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 863       if (c = get_conf_byte(d, PCI_REVISION_ID))
 864         printf(" -r%02x", c);
 865       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 866         printf(" -p%02x", c);
 867       if (sv_id && sv_id != 0xffff)
 868         {
 869           print_shell_escaped(pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 870           print_shell_escaped(pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 871         }
 872       else
 873         printf(" \"\" \"\"");
 874       putchar('\n');
 875     }
 876 }
 877
 878 /*** Main show function ***/
 879
 880 void
 881 show_device(struct device *d)
 882 {
 883   if (opt_machine)
 884     show_machine(d);
 885   else
 886     {
 887       if (verbose)
 888         show_verbose(d);
 889       else
 890         show_terse(d);
 891       if (opt_kernel || verbose)
 892         show_kernel(d);
 893     }
 894   if (opt_hex)
 895     show_hex_dump(d);
 896   if (verbose || opt_hex)
 897     putchar('\n');
 898 }
 899
 900 static void
 901 show(void)
 902 {
 903   struct device *d;
 904
 905   for (d=first_dev; d; d=d->next)
 906     show_device(d);
 907 }
 908
 909 /* Main */
 910
 911 int
 912 main(int argc, char **argv)
 913 {
 914   int i;
 915   char *msg;
 916
 917   if (argc == 2 && !strcmp(argv[1], "--version"))
 918     {
 919       puts("lspci version " PCIUTILS_VERSION);
 920       return 0;
 921     }
 922
 923   pacc = pci_alloc();
 924   pacc->error = die;
 925   pci_filter_init(pacc, &filter);
 926
 927   while ((i = getopt(argc, argv, options)) != -1)
 928     switch (i)
 929       {
 930       case 'n':
 931         pacc->numeric_ids++;
 932         break;
 933       case 'v':
 934         verbose++;
 935         break;
 936       case 'b':
 937         pacc->buscentric = 1;
 938         break;
 939       case 's':
 940         if (msg = pci_filter_parse_slot(&filter, optarg))
 941           die("-s: %s", msg);
 942         break;
 943       case 'd':
 944         if (msg = pci_filter_parse_id(&filter, optarg))
 945           die("-d: %s", msg);
 946         break;
 947       case 'x':
 948         opt_hex++;
 949         break;
 950       case 't':
 951         opt_tree++;
 952         break;
 953       case 'i':
 954         pci_set_name_list_path(pacc, optarg, 0);
 955         break;
 956       case 'm':
 957         opt_machine++;
 958         break;
 959       case 'p':
 960         opt_pcimap = optarg;
 961         break;
 962 #ifdef PCI_OS_LINUX
 963       case 'k':
 964         opt_kernel++;
 965         break;
 966 #endif
 967       case 'M':
 968         opt_map_mode++;
 969         break;
 970       case 'D':
 971         opt_domains = 2;
 972         break;
 973 #ifdef PCI_USE_DNS
 974       case 'q':
 975         opt_query_dns++;
 976         break;
 977       case 'Q':
 978         opt_query_all = 1;
 979         break;
 980 #else
 981       case 'q':
 982       case 'Q':
 983         die("DNS queries are not available in this version");
 984 #endif
 985       default:
 986         if (parse_generic_option(i, pacc, optarg))
 987           break;
 988       bad:
 989         fprintf(stderr, help_msg, pacc->id_file_name);
 990         return 1;
 991       }
 992   if (optind < argc)
 993     goto bad;
 994
 995   if (opt_query_dns)
 996     {
 997       pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK;
 998       if (opt_query_dns > 1)
 999         pacc->id_lookup_mode |= PCI_LOOKUP_REFRESH_CACHE;
1000     }
1001   if (opt_query_all)
1002     pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK | PCI_LOOKUP_SKIP_LOCAL;
1003
1004   pci_init(pacc);
1005   if (opt_map_mode)
1006     map_the_bus();
1007   else
1008     {
1009       scan_devices();
1010       sort_them();
1011       if (opt_tree)
1012         show_forest();
1013       else
1014         show();
1015     }
1016   pci_cleanup(pacc);
1017
1018   return (seen_errors ? 2 : 0);
1019 }