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
  14 #include "lspci.h"
  15
  16 /* Options */
  17
  18 int verbose;                            /* Show detailed information */
  19 static int opt_hex;                     /* Show contents of config space as hexadecimal numbers */
  20 struct pci_filter filter;               /* Device filter */
  21 static int opt_tree;                    /* Show bus tree */
  22 static int opt_machine;                 /* Generate machine-readable output */
  23 static int opt_map_mode;                /* Bus mapping mode enabled */
  24 static int opt_domains;                 /* Show domain numbers (0=disabled, 1=auto-detected, 2=requested) */
  25 static int opt_kernel;                  /* Show kernel drivers */
  26 static int opt_query_dns;               /* Query the DNS (0=disabled, 1=enabled, 2=refresh cache) */
  27 static int opt_query_all;               /* Query the DNS for all entries */
  28 char *opt_pcimap;                       /* Override path to Linux modules.pcimap */
  29
  30 const char program_name[] = "lspci";
  31
  32 static char options[] = "nvbxs:d:ti:mgp:qkMDQ" GENERIC_OPTIONS ;
  33
  34 static char help_msg[] =
  35 "Usage: lspci [<switches>]\n"
  36 "\n"
  37 "Basic display modes:\n"
  38 "-mm\t\tProduce machine-readable output (single -m for an obsolete format)\n"
  39 "-t\t\tShow bus tree\n"
  40 "\n"
  41 "Display options:\n"
  42 "-v\t\tBe verbose (-vv for very verbose)\n"
  43 #ifdef PCI_OS_LINUX
  44 "-k\t\tShow kernel drivers handling each device\n"
  45 #endif
  46 "-x\t\tShow hex-dump of the standard part of the config space\n"
  47 "-xxx\t\tShow hex-dump of the whole config space (dangerous; root only)\n"
  48 "-xxxx\t\tShow hex-dump of the 4096-byte extended config space (root only)\n"
  49 "-b\t\tBus-centric view (addresses and IRQ's as seen by the bus)\n"
  50 "-D\t\tAlways show domain numbers\n"
  51 "\n"
  52 "Resolving of device ID's to names:\n"
  53 "-n\t\tShow numeric ID's\n"
  54 "-nn\t\tShow both textual and numeric ID's (names & numbers)\n"
  55 #ifdef PCI_USE_DNS
  56 "-q\t\tQuery the PCI ID database for unknown ID's via DNS\n"
  57 "-qq\t\tAs above, but re-query locally cached entries\n"
  58 "-Q\t\tQuery the PCI ID database for all ID's via DNS\n"
  59 #endif
  60 "\n"
  61 "Selection of devices:\n"
  62 "-s [[[[<domain>]:]<bus>]:][<slot>][.[<func>]]\tShow only devices in selected slots\n"
  63 "-d [<vendor>]:[<device>]\t\t\tShow only devices with specified ID's\n"
  64 "\n"
  65 "Other options:\n"
  66 "-i <file>\tUse specified ID database instead of %s\n"
  67 #ifdef PCI_OS_LINUX
  68 "-p <file>\tLook up kernel modules in a given file instead of default modules.pcimap\n"
  69 #endif
  70 "-M\t\tEnable `bus mapping' mode (dangerous; root only)\n"
  71 "\n"
  72 "PCI access options:\n"
  73 GENERIC_HELP
  74 ;
  75
  76 /*** Our view of the PCI bus ***/
  77
  78 struct pci_access *pacc;
  79 struct device *first_dev;
  80 static int seen_errors;
  81
  82 int
  83 config_fetch(struct device *d, unsigned int pos, unsigned int len)
  84 {
  85   unsigned int end = pos+len;
  86   int result;
  87
  88   while (pos < d->config_bufsize && len && d->present[pos])
  89     pos++, len--;
  90   while (pos+len <= d->config_bufsize && len && d->present[pos+len-1])
  91     len--;
  92   if (!len)
  93     return 1;
  94
  95   if (end > d->config_bufsize)
  96     {
  97       int orig_size = d->config_bufsize;
  98       while (end > d->config_bufsize)
  99         d->config_bufsize *= 2;
 100       d->config = xrealloc(d->config, d->config_bufsize);
 101       d->present = xrealloc(d->present, d->config_bufsize);
 102       memset(d->present + orig_size, 0, d->config_bufsize - orig_size);
 103     }
 104   result = pci_read_block(d->dev, pos, d->config + pos, len);
 105   if (result)
 106     memset(d->present + pos, 1, len);
 107   return result;
 108 }
 109
 110 struct device *
 111 scan_device(struct pci_dev *p)
 112 {
 113   struct device *d;
 114
 115   if (p->domain && !opt_domains)
 116     opt_domains = 1;
 117   if (!pci_filter_match(&filter, p))
 118     return NULL;
 119   d = xmalloc(sizeof(struct device));
 120   memset(d, 0, sizeof(*d));
 121   d->dev = p;
 122   d->config_cached = d->config_bufsize = 64;
 123   d->config = xmalloc(64);
 124   d->present = xmalloc(64);
 125   memset(d->present, 1, 64);
 126   if (!pci_read_block(p, 0, d->config, 64))
 127     {
 128       fprintf(stderr, "lspci: Unable to read the standard configuration space header of device %04x:%02x:%02x.%d\n",
 129               p->domain, p->bus, p->dev, p->func);
 130       seen_errors++;
 131       return NULL;
 132     }
 133   if ((d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS)
 134     {
 135       /* For cardbus bridges, we need to fetch 64 bytes more to get the
 136        * full standard header... */
 137       if (config_fetch(d, 64, 64))
 138         d->config_cached += 64;
 139     }
 140   pci_setup_cache(p, d->config, d->config_cached);
 141   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 | PCI_FILL_LABEL);
 142   return d;
 143 }
 144
 145 static void
 146 scan_devices(void)
 147 {
 148   struct device *d;
 149   struct pci_dev *p;
 150
 151   pci_scan_bus(pacc);
 152   for (p=pacc->devices; p; p=p->next)
 153     if (d = scan_device(p))
 154       {
 155         d->next = first_dev;
 156         first_dev = d;
 157       }
 158 }
 159
 160 /*** Config space accesses ***/
 161
 162 static void
 163 check_conf_range(struct device *d, unsigned int pos, unsigned int len)
 164 {
 165   while (len)
 166     if (!d->present[pos])
 167       die("Internal bug: Accessing non-read configuration byte at position %x", pos);
 168     else
 169       pos++, len--;
 170 }
 171
 172 byte
 173 get_conf_byte(struct device *d, unsigned int pos)
 174 {
 175   check_conf_range(d, pos, 1);
 176   return d->config[pos];
 177 }
 178
 179 word
 180 get_conf_word(struct device *d, unsigned int pos)
 181 {
 182   check_conf_range(d, pos, 2);
 183   return d->config[pos] | (d->config[pos+1] << 8);
 184 }
 185
 186 u32
 187 get_conf_long(struct device *d, unsigned int pos)
 188 {
 189   check_conf_range(d, pos, 4);
 190   return d->config[pos] |
 191     (d->config[pos+1] << 8) |
 192     (d->config[pos+2] << 16) |
 193     (d->config[pos+3] << 24);
 194 }
 195
 196 /*** Sorting ***/
 197
 198 static int
 199 compare_them(const void *A, const void *B)
 200 {
 201   const struct pci_dev *a = (*(const struct device **)A)->dev;
 202   const struct pci_dev *b = (*(const struct device **)B)->dev;
 203
 204   if (a->domain < b->domain)
 205     return -1;
 206   if (a->domain > b->domain)
 207     return 1;
 208   if (a->bus < b->bus)
 209     return -1;
 210   if (a->bus > b->bus)
 211     return 1;
 212   if (a->dev < b->dev)
 213     return -1;
 214   if (a->dev > b->dev)
 215     return 1;
 216   if (a->func < b->func)
 217     return -1;
 218   if (a->func > b->func)
 219     return 1;
 220   return 0;
 221 }
 222
 223 static void
 224 sort_them(void)
 225 {
 226   struct device **index, **h, **last_dev;
 227   int cnt;
 228   struct device *d;
 229
 230   cnt = 0;
 231   for (d=first_dev; d; d=d->next)
 232     cnt++;
 233   h = index = alloca(sizeof(struct device *) * cnt);
 234   for (d=first_dev; d; d=d->next)
 235     *h++ = d;
 236   qsort(index, cnt, sizeof(struct device *), compare_them);
 237   last_dev = &first_dev;
 238   h = index;
 239   while (cnt--)
 240     {
 241       *last_dev = *h;
 242       last_dev = &(*h)->next;
 243       h++;
 244     }
 245   *last_dev = NULL;
 246 }
 247
 248 /*** Normal output ***/
 249
 250 static void
 251 show_slot_name(struct device *d)
 252 {
 253   struct pci_dev *p = d->dev;
 254
 255   if (!opt_machine ? opt_domains : (p->domain || opt_domains >= 2))
 256     printf("%04x:", p->domain);
 257   printf("%02x:%02x.%d", p->bus, p->dev, p->func);
 258 }
 259
 260 void
 261 get_subid(struct device *d, word *subvp, word *subdp)
 262 {
 263   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 264
 265   if (htype == PCI_HEADER_TYPE_NORMAL)
 266     {
 267       *subvp = get_conf_word(d, PCI_SUBSYSTEM_VENDOR_ID);
 268       *subdp = get_conf_word(d, PCI_SUBSYSTEM_ID);
 269     }
 270   else if (htype == PCI_HEADER_TYPE_CARDBUS && d->config_cached >= 128)
 271     {
 272       *subvp = get_conf_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID);
 273       *subdp = get_conf_word(d, PCI_CB_SUBSYSTEM_ID);
 274     }
 275   else
 276     *subvp = *subdp = 0xffff;
 277 }
 278
 279 static void
 280 show_terse(struct device *d)
 281 {
 282   int c;
 283   struct pci_dev *p = d->dev;
 284   char classbuf[128], devbuf[128];
 285
 286   show_slot_name(d);
 287   printf(" %s: %s",
 288          pci_lookup_name(pacc, classbuf, sizeof(classbuf),
 289                          PCI_LOOKUP_CLASS,
 290                          p->device_class),
 291          pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 292                          PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 293                          p->vendor_id, p->device_id));
 294   if (c = get_conf_byte(d, PCI_REVISION_ID))
 295     printf(" (rev %02x)", c);
 296   if (verbose)
 297     {
 298       char *x;
 299       c = get_conf_byte(d, PCI_CLASS_PROG);
 300       x = pci_lookup_name(pacc, devbuf, sizeof(devbuf),
 301                           PCI_LOOKUP_PROGIF | PCI_LOOKUP_NO_NUMBERS,
 302                           p->device_class, c);
 303       if (c || x)
 304         {
 305           printf(" (prog-if %02x", c);
 306           if (x)
 307             printf(" [%s]", x);
 308           putchar(')');
 309         }
 310     }
 311   putchar('\n');
 312
 313   if (verbose || opt_kernel)
 314     {
 315       word subsys_v, subsys_d;
 316       char ssnamebuf[256];
 317
 318       if (p->label)
 319         printf("\tDeviceName: %s", p->label);
 320       get_subid(d, &subsys_v, &subsys_d);
 321       if (subsys_v && subsys_v != 0xffff)
 322         printf("\tSubsystem: %s\n",
 323                 pci_lookup_name(pacc, ssnamebuf, sizeof(ssnamebuf),
 324                         PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
 325                         p->vendor_id, p->device_id, subsys_v, subsys_d));
 326     }
 327 }
 328
 329 /*** Verbose output ***/
 330
 331 static void
 332 show_size(pciaddr_t x)
 333 {
 334   static const char suffix[][2] = { "", "K", "M", "G", "T" };
 335   unsigned i;
 336   if (!x)
 337     return;
 338   for (i = 0; i < (sizeof(suffix) / sizeof(*suffix) - 1); i++) {
 339     if (x < 1024)
 340       break;
 341     x /= 1024;
 342   }
 343   printf(" [size=%u%s]", (unsigned)x, suffix[i]);
 344 }
 345
 346 static void
 347 show_bases(struct device *d, int cnt)
 348 {
 349   struct pci_dev *p = d->dev;
 350   word cmd = get_conf_word(d, PCI_COMMAND);
 351   int i;
 352   int virtual = 0;
 353
 354   for (i=0; i<cnt; i++)
 355     {
 356       pciaddr_t pos = p->base_addr[i];
 357       pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->size[i] : 0;
 358       u32 flg = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 359       if (flg == 0xffffffff)
 360         flg = 0;
 361       if (!pos && !flg && !len)
 362         continue;
 363       if (verbose > 1)
 364         printf("\tRegion %d: ", i);
 365       else
 366         putchar('\t');
 367       if (pos && !flg)                  /* Reported by the OS, but not by the device */
 368         {
 369           printf("[virtual] ");
 370           flg = pos;
 371           virtual = 1;
 372         }
 373       if (flg & PCI_BASE_ADDRESS_SPACE_IO)
 374         {
 375           pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
 376           printf("I/O ports at ");
 377           if (a || (cmd & PCI_COMMAND_IO))
 378             printf(PCIADDR_PORT_FMT, a);
 379           else if (flg & PCI_BASE_ADDRESS_IO_MASK)
 380             printf("<ignored>");
 381           else
 382             printf("<unassigned>");
 383           if (!virtual && !(cmd & PCI_COMMAND_IO))
 384             printf(" [disabled]");
 385         }
 386       else
 387         {
 388           int t = flg & PCI_BASE_ADDRESS_MEM_TYPE_MASK;
 389           pciaddr_t a = pos & PCI_ADDR_MEM_MASK;
 390           int done = 0;
 391           u32 z = 0;
 392
 393           printf("Memory at ");
 394           if (t == PCI_BASE_ADDRESS_MEM_TYPE_64)
 395             {
 396               if (i >= cnt - 1)
 397                 {
 398                   printf("<invalid-64bit-slot>");
 399                   done = 1;
 400                 }
 401               else
 402                 {
 403                   i++;
 404                   z = get_conf_long(d, PCI_BASE_ADDRESS_0 + 4*i);
 405                 }
 406             }
 407           if (!done)
 408             {
 409               if (a)
 410                 printf(PCIADDR_T_FMT, a);
 411               else
 412                 printf(((flg & PCI_BASE_ADDRESS_MEM_MASK) || z) ? "<ignored>" : "<unassigned>");
 413             }
 414           printf(" (%s, %sprefetchable)",
 415                  (t == PCI_BASE_ADDRESS_MEM_TYPE_32) ? "32-bit" :
 416                  (t == PCI_BASE_ADDRESS_MEM_TYPE_64) ? "64-bit" :
 417                  (t == PCI_BASE_ADDRESS_MEM_TYPE_1M) ? "low-1M" : "type 3",
 418                  (flg & PCI_BASE_ADDRESS_MEM_PREFETCH) ? "" : "non-");
 419           if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 420             printf(" [disabled]");
 421         }
 422       show_size(len);
 423       putchar('\n');
 424     }
 425 }
 426
 427 static void
 428 show_rom(struct device *d, int reg)
 429 {
 430   struct pci_dev *p = d->dev;
 431   pciaddr_t rom = p->rom_base_addr;
 432   pciaddr_t len = (p->known_fields & PCI_FILL_SIZES) ? p->rom_size : 0;
 433   u32 flg = get_conf_long(d, reg);
 434   word cmd = get_conf_word(d, PCI_COMMAND);
 435   int virtual = 0;
 436
 437   if (!rom && !flg && !len)
 438     return;
 439   putchar('\t');
 440   if ((rom & PCI_ROM_ADDRESS_MASK) && !(flg & PCI_ROM_ADDRESS_MASK))
 441     {
 442       printf("[virtual] ");
 443       flg = rom;
 444       virtual = 1;
 445     }
 446   printf("Expansion ROM at ");
 447   if (rom & PCI_ROM_ADDRESS_MASK)
 448     printf(PCIADDR_T_FMT, rom & PCI_ROM_ADDRESS_MASK);
 449   else if (flg & PCI_ROM_ADDRESS_MASK)
 450     printf("<ignored>");
 451   else
 452     printf("<unassigned>");
 453   if (!(flg & PCI_ROM_ADDRESS_ENABLE))
 454     printf(" [disabled]");
 455   else if (!virtual && !(cmd & PCI_COMMAND_MEMORY))
 456     printf(" [disabled by cmd]");
 457   show_size(len);
 458   putchar('\n');
 459 }
 460
 461 static void
 462 show_htype0(struct device *d)
 463 {
 464   show_bases(d, 6);
 465   show_rom(d, PCI_ROM_ADDRESS);
 466   show_caps(d, PCI_CAPABILITY_LIST);
 467 }
 468
 469 static void
 470 show_htype1(struct device *d)
 471 {
 472   u32 io_base = get_conf_byte(d, PCI_IO_BASE);
 473   u32 io_limit = get_conf_byte(d, PCI_IO_LIMIT);
 474   u32 io_type = io_base & PCI_IO_RANGE_TYPE_MASK;
 475   u32 mem_base = get_conf_word(d, PCI_MEMORY_BASE);
 476   u32 mem_limit = get_conf_word(d, PCI_MEMORY_LIMIT);
 477   u32 mem_type = mem_base & PCI_MEMORY_RANGE_TYPE_MASK;
 478   u32 pref_base = get_conf_word(d, PCI_PREF_MEMORY_BASE);
 479   u32 pref_limit = get_conf_word(d, PCI_PREF_MEMORY_LIMIT);
 480   u32 pref_type = pref_base & PCI_PREF_RANGE_TYPE_MASK;
 481   word sec_stat = get_conf_word(d, PCI_SEC_STATUS);
 482   word brc = get_conf_word(d, PCI_BRIDGE_CONTROL);
 483   int verb = verbose > 2;
 484
 485   show_bases(d, 2);
 486   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 487          get_conf_byte(d, PCI_PRIMARY_BUS),
 488          get_conf_byte(d, PCI_SECONDARY_BUS),
 489          get_conf_byte(d, PCI_SUBORDINATE_BUS),
 490          get_conf_byte(d, PCI_SEC_LATENCY_TIMER));
 491
 492   if (io_type != (io_limit & PCI_IO_RANGE_TYPE_MASK) ||
 493       (io_type != PCI_IO_RANGE_TYPE_16 && io_type != PCI_IO_RANGE_TYPE_32))
 494     printf("\t!!! Unknown I/O range types %x/%x\n", io_base, io_limit);
 495   else
 496     {
 497       io_base = (io_base & PCI_IO_RANGE_MASK) << 8;
 498       io_limit = (io_limit & PCI_IO_RANGE_MASK) << 8;
 499       if (io_type == PCI_IO_RANGE_TYPE_32)
 500         {
 501           io_base |= (get_conf_word(d, PCI_IO_BASE_UPPER16) << 16);
 502           io_limit |= (get_conf_word(d, PCI_IO_LIMIT_UPPER16) << 16);
 503         }
 504       if (io_base <= io_limit || verb)
 505         printf("\tI/O behind bridge: %08x-%08x\n", io_base, io_limit+0xfff);
 506     }
 507
 508   if (mem_type != (mem_limit & PCI_MEMORY_RANGE_TYPE_MASK) ||
 509       mem_type)
 510     printf("\t!!! Unknown memory range types %x/%x\n", mem_base, mem_limit);
 511   else
 512     {
 513       mem_base = (mem_base & PCI_MEMORY_RANGE_MASK) << 16;
 514       mem_limit = (mem_limit & PCI_MEMORY_RANGE_MASK) << 16;
 515       if (mem_base <= mem_limit || verb)
 516         printf("\tMemory behind bridge: %08x-%08x\n", mem_base, mem_limit + 0xfffff);
 517     }
 518
 519   if (pref_type != (pref_limit & PCI_PREF_RANGE_TYPE_MASK) ||
 520       (pref_type != PCI_PREF_RANGE_TYPE_32 && pref_type != PCI_PREF_RANGE_TYPE_64))
 521     printf("\t!!! Unknown prefetchable memory range types %x/%x\n", pref_base, pref_limit);
 522   else
 523     {
 524       pref_base = (pref_base & PCI_PREF_RANGE_MASK) << 16;
 525       pref_limit = (pref_limit & PCI_PREF_RANGE_MASK) << 16;
 526       if (pref_base <= pref_limit || verb)
 527         {
 528           if (pref_type == PCI_PREF_RANGE_TYPE_32)
 529             printf("\tPrefetchable memory behind bridge: %08x-%08x\n", pref_base, pref_limit + 0xfffff);
 530           else
 531             printf("\tPrefetchable memory behind bridge: %08x%08x-%08x%08x\n",
 532                    get_conf_long(d, PCI_PREF_BASE_UPPER32),
 533                    pref_base,
 534                    get_conf_long(d, PCI_PREF_LIMIT_UPPER32),
 535                    pref_limit + 0xfffff);
 536         }
 537     }
 538
 539   if (verbose > 1)
 540     printf("\tSecondary status: 66MHz%c FastB2B%c ParErr%c DEVSEL=%s >TAbort%c <TAbort%c <MAbort%c <SERR%c <PERR%c\n",
 541              FLAG(sec_stat, PCI_STATUS_66MHZ),
 542              FLAG(sec_stat, PCI_STATUS_FAST_BACK),
 543              FLAG(sec_stat, PCI_STATUS_PARITY),
 544              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 545              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 546              ((sec_stat & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 547              FLAG(sec_stat, PCI_STATUS_SIG_TARGET_ABORT),
 548              FLAG(sec_stat, PCI_STATUS_REC_TARGET_ABORT),
 549              FLAG(sec_stat, PCI_STATUS_REC_MASTER_ABORT),
 550              FLAG(sec_stat, PCI_STATUS_SIG_SYSTEM_ERROR),
 551              FLAG(sec_stat, PCI_STATUS_DETECTED_PARITY));
 552
 553   show_rom(d, PCI_ROM_ADDRESS1);
 554
 555   if (verbose > 1)
 556     {
 557       printf("\tBridgeCtl: Parity%c SERR%c NoISA%c VGA%c MAbort%c >Reset%c FastB2B%c\n",
 558         FLAG(brc, PCI_BRIDGE_CTL_PARITY),
 559         FLAG(brc, PCI_BRIDGE_CTL_SERR),
 560         FLAG(brc, PCI_BRIDGE_CTL_NO_ISA),
 561         FLAG(brc, PCI_BRIDGE_CTL_VGA),
 562         FLAG(brc, PCI_BRIDGE_CTL_MASTER_ABORT),
 563         FLAG(brc, PCI_BRIDGE_CTL_BUS_RESET),
 564         FLAG(brc, PCI_BRIDGE_CTL_FAST_BACK));
 565       printf("\t\tPriDiscTmr%c SecDiscTmr%c DiscTmrStat%c DiscTmrSERREn%c\n",
 566         FLAG(brc, PCI_BRIDGE_CTL_PRI_DISCARD_TIMER),
 567         FLAG(brc, PCI_BRIDGE_CTL_SEC_DISCARD_TIMER),
 568         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_STATUS),
 569         FLAG(brc, PCI_BRIDGE_CTL_DISCARD_TIMER_SERR_EN));
 570     }
 571
 572   show_caps(d, PCI_CAPABILITY_LIST);
 573 }
 574
 575 static void
 576 show_htype2(struct device *d)
 577 {
 578   int i;
 579   word cmd = get_conf_word(d, PCI_COMMAND);
 580   word brc = get_conf_word(d, PCI_CB_BRIDGE_CONTROL);
 581   word exca;
 582   int verb = verbose > 2;
 583
 584   show_bases(d, 1);
 585   printf("\tBus: primary=%02x, secondary=%02x, subordinate=%02x, sec-latency=%d\n",
 586          get_conf_byte(d, PCI_CB_PRIMARY_BUS),
 587          get_conf_byte(d, PCI_CB_CARD_BUS),
 588          get_conf_byte(d, PCI_CB_SUBORDINATE_BUS),
 589          get_conf_byte(d, PCI_CB_LATENCY_TIMER));
 590   for (i=0; i<2; i++)
 591     {
 592       int p = 8*i;
 593       u32 base = get_conf_long(d, PCI_CB_MEMORY_BASE_0 + p);
 594       u32 limit = get_conf_long(d, PCI_CB_MEMORY_LIMIT_0 + p);
 595       limit = limit + 0xfff;
 596       if (base <= limit || verb)
 597         printf("\tMemory window %d: %08x-%08x%s%s\n", i, base, limit,
 598                (cmd & PCI_COMMAND_MEMORY) ? "" : " [disabled]",
 599                (brc & (PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 << i)) ? " (prefetchable)" : "");
 600     }
 601   for (i=0; i<2; i++)
 602     {
 603       int p = 8*i;
 604       u32 base = get_conf_long(d, PCI_CB_IO_BASE_0 + p);
 605       u32 limit = get_conf_long(d, PCI_CB_IO_LIMIT_0 + p);
 606       if (!(base & PCI_IO_RANGE_TYPE_32))
 607         {
 608           base &= 0xffff;
 609           limit &= 0xffff;
 610         }
 611       base &= PCI_CB_IO_RANGE_MASK;
 612       limit = (limit & PCI_CB_IO_RANGE_MASK) + 3;
 613       if (base <= limit || verb)
 614         printf("\tI/O window %d: %08x-%08x%s\n", i, base, limit,
 615                (cmd & PCI_COMMAND_IO) ? "" : " [disabled]");
 616     }
 617
 618   if (get_conf_word(d, PCI_CB_SEC_STATUS) & PCI_STATUS_SIG_SYSTEM_ERROR)
 619     printf("\tSecondary status: SERR\n");
 620   if (verbose > 1)
 621     printf("\tBridgeCtl: Parity%c SERR%c ISA%c VGA%c MAbort%c >Reset%c 16bInt%c PostWrite%c\n",
 622            FLAG(brc, PCI_CB_BRIDGE_CTL_PARITY),
 623            FLAG(brc, PCI_CB_BRIDGE_CTL_SERR),
 624            FLAG(brc, PCI_CB_BRIDGE_CTL_ISA),
 625            FLAG(brc, PCI_CB_BRIDGE_CTL_VGA),
 626            FLAG(brc, PCI_CB_BRIDGE_CTL_MASTER_ABORT),
 627            FLAG(brc, PCI_CB_BRIDGE_CTL_CB_RESET),
 628            FLAG(brc, PCI_CB_BRIDGE_CTL_16BIT_INT),
 629            FLAG(brc, PCI_CB_BRIDGE_CTL_POST_WRITES));
 630
 631   if (d->config_cached < 128)
 632     {
 633       printf("\t<access denied to the rest>\n");
 634       return;
 635     }
 636
 637   exca = get_conf_word(d, PCI_CB_LEGACY_MODE_BASE);
 638   if (exca)
 639     printf("\t16-bit legacy interface ports at %04x\n", exca);
 640   show_caps(d, PCI_CB_CAPABILITY_LIST);
 641 }
 642
 643 static void
 644 show_verbose(struct device *d)
 645 {
 646   struct pci_dev *p = d->dev;
 647   word status = get_conf_word(d, PCI_STATUS);
 648   word cmd = get_conf_word(d, PCI_COMMAND);
 649   word class = p->device_class;
 650   byte bist = get_conf_byte(d, PCI_BIST);
 651   byte htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f;
 652   byte latency = get_conf_byte(d, PCI_LATENCY_TIMER);
 653   byte cache_line = get_conf_byte(d, PCI_CACHE_LINE_SIZE);
 654   byte max_lat, min_gnt;
 655   byte int_pin = get_conf_byte(d, PCI_INTERRUPT_PIN);
 656   unsigned int irq = p->irq;
 657
 658   show_terse(d);
 659
 660   switch (htype)
 661     {
 662     case PCI_HEADER_TYPE_NORMAL:
 663       if (class == PCI_CLASS_BRIDGE_PCI)
 664         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 665       max_lat = get_conf_byte(d, PCI_MAX_LAT);
 666       min_gnt = get_conf_byte(d, PCI_MIN_GNT);
 667       break;
 668     case PCI_HEADER_TYPE_BRIDGE:
 669       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 670         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 671       min_gnt = max_lat = 0;
 672       break;
 673     case PCI_HEADER_TYPE_CARDBUS:
 674       if ((class >> 8) != PCI_BASE_CLASS_BRIDGE)
 675         printf("\t!!! Invalid class %04x for header type %02x\n", class, htype);
 676       min_gnt = max_lat = 0;
 677       break;
 678     default:
 679       printf("\t!!! Unknown header type %02x\n", htype);
 680       return;
 681     }
 682
 683   if (p->phy_slot)
 684     printf("\tPhysical Slot: %s\n", p->phy_slot);
 685
 686   if (verbose > 1)
 687     {
 688       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",
 689              FLAG(cmd, PCI_COMMAND_IO),
 690              FLAG(cmd, PCI_COMMAND_MEMORY),
 691              FLAG(cmd, PCI_COMMAND_MASTER),
 692              FLAG(cmd, PCI_COMMAND_SPECIAL),
 693              FLAG(cmd, PCI_COMMAND_INVALIDATE),
 694              FLAG(cmd, PCI_COMMAND_VGA_PALETTE),
 695              FLAG(cmd, PCI_COMMAND_PARITY),
 696              FLAG(cmd, PCI_COMMAND_WAIT),
 697              FLAG(cmd, PCI_COMMAND_SERR),
 698              FLAG(cmd, PCI_COMMAND_FAST_BACK),
 699              FLAG(cmd, PCI_COMMAND_DISABLE_INTx));
 700       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",
 701              FLAG(status, PCI_STATUS_CAP_LIST),
 702              FLAG(status, PCI_STATUS_66MHZ),
 703              FLAG(status, PCI_STATUS_UDF),
 704              FLAG(status, PCI_STATUS_FAST_BACK),
 705              FLAG(status, PCI_STATUS_PARITY),
 706              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 707              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 708              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??",
 709              FLAG(status, PCI_STATUS_SIG_TARGET_ABORT),
 710              FLAG(status, PCI_STATUS_REC_TARGET_ABORT),
 711              FLAG(status, PCI_STATUS_REC_MASTER_ABORT),
 712              FLAG(status, PCI_STATUS_SIG_SYSTEM_ERROR),
 713              FLAG(status, PCI_STATUS_DETECTED_PARITY),
 714              FLAG(status, PCI_STATUS_INTx));
 715       if (cmd & PCI_COMMAND_MASTER)
 716         {
 717           printf("\tLatency: %d", latency);
 718           if (min_gnt || max_lat)
 719             {
 720               printf(" (");
 721               if (min_gnt)
 722                 printf("%dns min", min_gnt*250);
 723               if (min_gnt && max_lat)
 724                 printf(", ");
 725               if (max_lat)
 726                 printf("%dns max", max_lat*250);
 727               putchar(')');
 728             }
 729           if (cache_line)
 730             printf(", Cache Line Size: %d bytes", cache_line * 4);
 731           putchar('\n');
 732         }
 733       if (int_pin || irq)
 734         printf("\tInterrupt: pin %c routed to IRQ " PCIIRQ_FMT "\n",
 735                (int_pin ? 'A' + int_pin - 1 : '?'), irq);
 736     }
 737   else
 738     {
 739       printf("\tFlags: ");
 740       if (cmd & PCI_COMMAND_MASTER)
 741         printf("bus master, ");
 742       if (cmd & PCI_COMMAND_VGA_PALETTE)
 743         printf("VGA palette snoop, ");
 744       if (cmd & PCI_COMMAND_WAIT)
 745         printf("stepping, ");
 746       if (cmd & PCI_COMMAND_FAST_BACK)
 747         printf("fast Back2Back, ");
 748       if (status & PCI_STATUS_66MHZ)
 749         printf("66MHz, ");
 750       if (status & PCI_STATUS_UDF)
 751         printf("user-definable features, ");
 752       printf("%s devsel",
 753              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_SLOW) ? "slow" :
 754              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_MEDIUM) ? "medium" :
 755              ((status & PCI_STATUS_DEVSEL_MASK) == PCI_STATUS_DEVSEL_FAST) ? "fast" : "??");
 756       if (cmd & PCI_COMMAND_MASTER)
 757         printf(", latency %d", latency);
 758       if (irq)
 759         printf(", IRQ " PCIIRQ_FMT, irq);
 760       putchar('\n');
 761     }
 762
 763   if (bist & PCI_BIST_CAPABLE)
 764     {
 765       if (bist & PCI_BIST_START)
 766         printf("\tBIST is running\n");
 767       else
 768         printf("\tBIST result: %02x\n", bist & PCI_BIST_CODE_MASK);
 769     }
 770
 771   switch (htype)
 772     {
 773     case PCI_HEADER_TYPE_NORMAL:
 774       show_htype0(d);
 775       break;
 776     case PCI_HEADER_TYPE_BRIDGE:
 777       show_htype1(d);
 778       break;
 779     case PCI_HEADER_TYPE_CARDBUS:
 780       show_htype2(d);
 781       break;
 782     }
 783 }
 784
 785 /*** Machine-readable dumps ***/
 786
 787 static void
 788 show_hex_dump(struct device *d)
 789 {
 790   unsigned int i, cnt;
 791
 792   cnt = d->config_cached;
 793   if (opt_hex >= 3 && config_fetch(d, cnt, 256-cnt))
 794     {
 795       cnt = 256;
 796       if (opt_hex >= 4 && config_fetch(d, 256, 4096-256))
 797         cnt = 4096;
 798     }
 799
 800   for (i=0; i<cnt; i++)
 801     {
 802       if (! (i & 15))
 803         printf("%02x:", i);
 804       printf(" %02x", get_conf_byte(d, i));
 805       if ((i & 15) == 15)
 806         putchar('\n');
 807     }
 808 }
 809
 810 static void
 811 print_shell_escaped(char *c)
 812 {
 813   printf(" \"");
 814   while (*c)
 815     {
 816       if (*c == '"' || *c == '\\')
 817         putchar('\\');
 818       putchar(*c++);
 819     }
 820   putchar('"');
 821 }
 822
 823 static void
 824 show_machine(struct device *d)
 825 {
 826   struct pci_dev *p = d->dev;
 827   int c;
 828   word sv_id, sd_id;
 829   char classbuf[128], vendbuf[128], devbuf[128], svbuf[128], sdbuf[128];
 830
 831   get_subid(d, &sv_id, &sd_id);
 832
 833   if (verbose)
 834     {
 835       printf((opt_machine >= 2) ? "Slot:\t" : "Device:\t");
 836       show_slot_name(d);
 837       putchar('\n');
 838       printf("Class:\t%s\n",
 839              pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 840       printf("Vendor:\t%s\n",
 841              pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 842       printf("Device:\t%s\n",
 843              pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 844       if (sv_id && sv_id != 0xffff)
 845         {
 846           printf("SVendor:\t%s\n",
 847                  pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 848           printf("SDevice:\t%s\n",
 849                  pci_lookup_name(pacc, sdbuf, sizeof(sdbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id, sv_id, sd_id));
 850         }
 851       if (p->phy_slot)
 852         printf("PhySlot:\t%s\n", p->phy_slot);
 853       if (c = get_conf_byte(d, PCI_REVISION_ID))
 854         printf("Rev:\t%02x\n", c);
 855       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 856         printf("ProgIf:\t%02x\n", c);
 857       if (opt_kernel)
 858         show_kernel_machine(d);
 859     }
 860   else
 861     {
 862       show_slot_name(d);
 863       print_shell_escaped(pci_lookup_name(pacc, classbuf, sizeof(classbuf), PCI_LOOKUP_CLASS, p->device_class));
 864       print_shell_escaped(pci_lookup_name(pacc, vendbuf, sizeof(vendbuf), PCI_LOOKUP_VENDOR, p->vendor_id, p->device_id));
 865       print_shell_escaped(pci_lookup_name(pacc, devbuf, sizeof(devbuf), PCI_LOOKUP_DEVICE, p->vendor_id, p->device_id));
 866       if (c = get_conf_byte(d, PCI_REVISION_ID))
 867         printf(" -r%02x", c);
 868       if (c = get_conf_byte(d, PCI_CLASS_PROG))
 869         printf(" -p%02x", c);
 870       if (sv_id && sv_id != 0xffff)
 871         {
 872           print_shell_escaped(pci_lookup_name(pacc, svbuf, sizeof(svbuf), PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR, sv_id));
 873           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));
 874         }
 875       else
 876         printf(" \"\" \"\"");
 877       putchar('\n');
 878     }
 879 }
 880
 881 /*** Main show function ***/
 882
 883 void
 884 show_device(struct device *d)
 885 {
 886   if (opt_machine)
 887     show_machine(d);
 888   else
 889     {
 890       if (verbose)
 891         show_verbose(d);
 892       else
 893         show_terse(d);
 894       if (opt_kernel || verbose)
 895         show_kernel(d);
 896     }
 897   if (opt_hex)
 898     show_hex_dump(d);
 899   if (verbose || opt_hex)
 900     putchar('\n');
 901 }
 902
 903 static void
 904 show(void)
 905 {
 906   struct device *d;
 907
 908   for (d=first_dev; d; d=d->next)
 909     show_device(d);
 910 }
 911
 912 /* Main */
 913
 914 int
 915 main(int argc, char **argv)
 916 {
 917   int i;
 918   char *msg;
 919
 920   if (argc == 2 && !strcmp(argv[1], "--version"))
 921     {
 922       puts("lspci version " PCIUTILS_VERSION);
 923       return 0;
 924     }
 925
 926   pacc = pci_alloc();
 927   pacc->error = die;
 928   pci_filter_init(pacc, &filter);
 929
 930   while ((i = getopt(argc, argv, options)) != -1)
 931     switch (i)
 932       {
 933       case 'n':
 934         pacc->numeric_ids++;
 935         break;
 936       case 'v':
 937         verbose++;
 938         break;
 939       case 'b':
 940         pacc->buscentric = 1;
 941         break;
 942       case 's':
 943         if (msg = pci_filter_parse_slot(&filter, optarg))
 944           die("-s: %s", msg);
 945         break;
 946       case 'd':
 947         if (msg = pci_filter_parse_id(&filter, optarg))
 948           die("-d: %s", msg);
 949         break;
 950       case 'x':
 951         opt_hex++;
 952         break;
 953       case 't':
 954         opt_tree++;
 955         break;
 956       case 'i':
 957         pci_set_name_list_path(pacc, optarg, 0);
 958         break;
 959       case 'm':
 960         opt_machine++;
 961         break;
 962       case 'p':
 963         opt_pcimap = optarg;
 964         break;
 965 #ifdef PCI_OS_LINUX
 966       case 'k':
 967         opt_kernel++;
 968         break;
 969 #endif
 970       case 'M':
 971         opt_map_mode++;
 972         break;
 973       case 'D':
 974         opt_domains = 2;
 975         break;
 976 #ifdef PCI_USE_DNS
 977       case 'q':
 978         opt_query_dns++;
 979         break;
 980       case 'Q':
 981         opt_query_all = 1;
 982         break;
 983 #else
 984       case 'q':
 985       case 'Q':
 986         die("DNS queries are not available in this version");
 987 #endif
 988       default:
 989         if (parse_generic_option(i, pacc, optarg))
 990           break;
 991       bad:
 992         fprintf(stderr, help_msg, pacc->id_file_name);
 993         return 1;
 994       }
 995   if (optind < argc)
 996     goto bad;
 997
 998   if (opt_query_dns)
 999     {
1000       pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK;
1001       if (opt_query_dns > 1)
1002         pacc->id_lookup_mode |= PCI_LOOKUP_REFRESH_CACHE;
1003     }
1004   if (opt_query_all)
1005     pacc->id_lookup_mode |= PCI_LOOKUP_NETWORK | PCI_LOOKUP_SKIP_LOCAL;
1006
1007   pci_init(pacc);
1008   if (opt_map_mode)
1009     map_the_bus();
1010   else
1011     {
1012       scan_devices();
1013       sort_them();
1014       if (opt_tree)
1015         show_forest();
1016       else
1017         show();
1018     }
1019   show_kernel_cleanup();
1020   pci_cleanup(pacc);
1021
1022   return (seen_errors ? 2 : 0);
1023 }