2 * Copyright 1996 Massachusetts Institute of Technology
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
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
29 * $FreeBSD: src/usr.sbin/pciconf/pciconf.c,v 1.30.2.3.2.1 2009/04/15 03:14:26 kensmith Exp $
30 * $DragonFly: src/usr.sbin/pciconf/pciconf.c,v 1.6 2005/01/01 22:06:25 cpressey Exp $
33 #include <sys/types.h>
34 #include <sys/fcntl.h>
42 #include <sys/pciio.h>
43 #include <sys/queue.h>
45 #include <bus/pci/pcireg.h>
47 #include "pathnames.h"
50 struct pci_device_info
52 TAILQ_ENTRY(pci_device_info) link;
57 struct pci_vendor_info
59 TAILQ_ENTRY(pci_vendor_info) link;
60 TAILQ_HEAD(,pci_device_info) devs;
65 TAILQ_HEAD(,pci_vendor_info) pci_vendors;
67 static void list_bars(int fd, struct pci_conf *p);
68 static void list_devs(int verbose, int bars, int caps);
69 static void list_verbose(struct pci_conf *p);
70 static const char *guess_class(struct pci_conf *p);
71 static const char *guess_subclass(struct pci_conf *p);
72 static int load_vendors(void);
73 static void readit(const char *, const char *, int);
74 static void writeit(const char *, const char *, const char *, int);
75 static void chkattached(const char *, int);
77 static int exitstatus = 0;
82 fprintf(stderr, "%s\n%s\n%s\n%s\n",
83 "usage: pciconf -l [-bcv]",
84 " pciconf -a selector",
85 " pciconf -r [-b | -h] selector addr[:addr2]",
86 " pciconf -w [-b | -h] selector addr value");
91 main(int argc, char **argv)
94 int listmode, readmode, writemode, attachedmode, bars, caps, verbose;
97 listmode = readmode = writemode = attachedmode = bars = caps = verbose = byte = isshort = 0;
99 while ((c = getopt(argc, argv, "abchlrwv")) != -1) {
139 if ((listmode && optind != argc)
140 || (writemode && optind + 3 != argc)
141 || (readmode && optind + 2 != argc)
142 || (attachedmode && optind + 1 != argc))
146 list_devs(verbose, bars, caps);
147 } else if (attachedmode) {
148 chkattached(argv[optind],
149 byte ? 1 : isshort ? 2 : 4);
150 } else if (readmode) {
151 readit(argv[optind], argv[optind + 1],
152 byte ? 1 : isshort ? 2 : 4);
153 } else if (writemode) {
154 writeit(argv[optind], argv[optind + 1], argv[optind + 2],
155 byte ? 1 : isshort ? 2 : 4);
164 list_devs(int verbose, int bars, int caps)
167 struct pci_conf_io pc;
168 struct pci_conf conf[255], *p;
174 fd = open(_PATH_DEVPCI, caps ? O_RDWR : O_RDONLY, 0);
176 err(1, "%s", _PATH_DEVPCI);
178 bzero(&pc, sizeof(struct pci_conf_io));
179 pc.match_buf_len = sizeof(conf);
183 if (ioctl(fd, PCIOCGETCONF, &pc) == -1)
184 err(1, "ioctl(PCIOCGETCONF)");
187 * 255 entries should be more than enough for most people,
188 * but if someone has more devices, and then changes things
189 * around between ioctls, we'll do the cheezy thing and
190 * just bail. The alternative would be to go back to the
191 * beginning of the list, and print things twice, which may
194 if (pc.status == PCI_GETCONF_LIST_CHANGED) {
195 warnx("PCI device list changed, please try again");
199 } else if (pc.status == PCI_GETCONF_ERROR) {
200 warnx("error returned from PCIOCGETCONF ioctl");
205 for (p = conf; p < &conf[pc.num_matches]; p++) {
206 printf("%s%d@pci%d:%d:%d:%d:\tclass=0x%06x card=0x%08x "
207 "chip=0x%08x rev=0x%02x hdr=0x%02x\n",
208 (p->pd_name && *p->pd_name) ? p->pd_name :
210 (p->pd_name && *p->pd_name) ? (int)p->pd_unit :
211 none_count++, p->pc_sel.pc_domain,
212 p->pc_sel.pc_bus, p->pc_sel.pc_dev,
213 p->pc_sel.pc_func, (p->pc_class << 16) |
214 (p->pc_subclass << 8) | p->pc_progif,
215 (p->pc_subdevice << 16) | p->pc_subvendor,
216 (p->pc_device << 16) | p->pc_vendor,
217 p->pc_revid, p->pc_hdr);
225 } while (pc.status == PCI_GETCONF_MORE_DEVS);
231 list_bars(int fd, struct pci_conf *p)
233 struct pci_bar_io bar;
238 switch (p->pc_hdr & PCIM_HDRTYPE) {
239 case PCIM_HDRTYPE_NORMAL:
240 max = PCIR_MAX_BAR_0;
242 case PCIM_HDRTYPE_BRIDGE:
243 max = PCIR_MAX_BAR_1;
245 case PCIM_HDRTYPE_CARDBUS:
246 max = PCIR_MAX_BAR_2;
252 for (i = 0; i <= max; i++) {
253 bar.pbi_sel = p->pc_sel;
254 bar.pbi_reg = PCIR_BAR(i);
255 if (ioctl(fd, PCIOCGETBAR, &bar) < 0)
257 if (PCI_BAR_IO(bar.pbi_base)) {
260 base = bar.pbi_base & PCIM_BAR_IO_BASE;
262 if (bar.pbi_base & PCIM_BAR_MEM_PREFETCH)
263 type = "Prefetchable Memory";
266 switch (bar.pbi_base & PCIM_BAR_MEM_TYPE) {
267 case PCIM_BAR_MEM_32:
270 case PCIM_BAR_MEM_1MB:
273 case PCIM_BAR_MEM_64:
279 base = bar.pbi_base & ~((uint64_t)0xf);
281 printf(" bar [%02x] = type %s, range %2d, base %#jx, ",
282 PCIR_BAR(i), type, range, (uintmax_t)base);
283 printf("size %2d, %s\n", (int)bar.pbi_length,
284 bar.pbi_enabled ? "enabled" : "disabled");
289 list_verbose(struct pci_conf *p)
291 struct pci_vendor_info *vi;
292 struct pci_device_info *di;
295 TAILQ_FOREACH(vi, &pci_vendors, link) {
296 if (vi->id == p->pc_vendor) {
297 printf(" vendor = '%s'\n", vi->desc);
304 TAILQ_FOREACH(di, &vi->devs, link) {
305 if (di->id == p->pc_device) {
306 printf(" device = '%s'\n", di->desc);
311 if ((dp = guess_class(p)) != NULL)
312 printf(" class = %s\n", dp);
313 if ((dp = guess_subclass(p)) != NULL)
314 printf(" subclass = %s\n", dp);
318 * This is a direct cut-and-paste from the table in sys/bus/pci/pcireg.h.
325 } pci_nomatch_tab[] = {
326 {PCIC_OLD, -1, "old"},
327 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"},
328 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"},
329 {PCIC_STORAGE, -1, "mass storage"},
330 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"},
331 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"},
332 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"},
333 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"},
334 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"},
335 {PCIC_STORAGE, PCIS_STORAGE_ATA_ADMA, "ATA (ADMA)"},
336 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"},
337 {PCIC_STORAGE, PCIS_STORAGE_SAS, "SAS"},
338 {PCIC_NETWORK, -1, "network"},
339 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"},
340 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"},
341 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"},
342 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"},
343 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"},
344 {PCIC_DISPLAY, -1, "display"},
345 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"},
346 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"},
347 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"},
348 {PCIC_MULTIMEDIA, -1, "multimedia"},
349 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"},
350 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"},
351 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TELE, "telephony"},
352 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_HDA, "HDA"},
353 {PCIC_MEMORY, -1, "memory"},
354 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"},
355 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"},
356 {PCIC_BRIDGE, -1, "bridge"},
357 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"},
358 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"},
359 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"},
360 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"},
361 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"},
362 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"},
363 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"},
364 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"},
365 {PCIC_BRIDGE, PCIS_BRIDGE_RACEWAY, "PCI-RACEway"},
366 {PCIC_SIMPLECOMM, -1, "simple comms"},
367 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */
368 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"},
369 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULSER, "multiport serial"},
370 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"},
371 {PCIC_BASEPERIPH, -1, "base peripheral"},
372 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"},
373 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"},
374 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"},
375 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"},
376 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PCIHOT, "PCI hot-plug controller"},
377 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_SDHC, "SD host controller"},
378 {PCIC_INPUTDEV, -1, "input device"},
379 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"},
380 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"},
381 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"},
382 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"},
383 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"},
384 {PCIC_DOCKING, -1, "docking station"},
385 {PCIC_PROCESSOR, -1, "processor"},
386 {PCIC_SERIALBUS, -1, "serial bus"},
387 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"},
388 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"},
389 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"},
390 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"},
391 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"},
392 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"},
393 {PCIC_WIRELESS, -1, "wireless controller"},
394 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"},
395 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "IR"},
396 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF"},
397 {PCIC_INTELLIIO, -1, "intelligent I/O controller"},
398 {PCIC_INTELLIIO, PCIS_INTELLIIO_I2O, "I2O"},
399 {PCIC_SATCOM, -1, "satellite communication"},
400 {PCIC_SATCOM, PCIS_SATCOM_TV, "sat TV"},
401 {PCIC_SATCOM, PCIS_SATCOM_AUDIO, "sat audio"},
402 {PCIC_SATCOM, PCIS_SATCOM_VOICE, "sat voice"},
403 {PCIC_SATCOM, PCIS_SATCOM_DATA, "sat data"},
404 {PCIC_CRYPTO, -1, "encrypt/decrypt"},
405 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "network/computer crypto"},
406 {PCIC_CRYPTO, PCIS_CRYPTO_NETCOMP, "entertainment crypto"},
407 {PCIC_DASP, -1, "dasp"},
408 {PCIC_DASP, PCIS_DASP_DPIO, "DPIO module"},
413 guess_class(struct pci_conf *p)
417 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) {
418 if (pci_nomatch_tab[i].class == p->pc_class)
419 return(pci_nomatch_tab[i].desc);
425 guess_subclass(struct pci_conf *p)
429 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) {
430 if ((pci_nomatch_tab[i].class == p->pc_class) &&
431 (pci_nomatch_tab[i].subclass == p->pc_subclass))
432 return(pci_nomatch_tab[i].desc);
442 struct pci_vendor_info *cv;
443 struct pci_device_info *cd;
444 char buf[1024], str[1024];
449 * Locate the database and initialise.
451 TAILQ_INIT(&pci_vendors);
452 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL)
454 if ((db = fopen(dbf, "r")) == NULL)
461 * Scan input lines from the database
464 if (fgets(buf, sizeof(buf), db) == NULL)
467 if ((ch = strchr(buf, '#')) != NULL)
469 ch = strchr(buf, '\0') - 1;
470 while (ch > buf && isspace(*ch))
475 /* Can't handle subvendor / subdevice entries yet */
476 if (buf[0] == '\t' && buf[1] == '\t')
479 /* Check for vendor entry */
480 if (buf[0] != '\t' && sscanf(buf, "%04x %[^\n]", &id, str) == 2) {
481 if ((id == 0) || (strlen(str) < 1))
483 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) {
484 warn("allocating vendor entry");
488 if ((cv->desc = strdup(str)) == NULL) {
490 warn("allocating vendor description");
495 TAILQ_INIT(&cv->devs);
496 TAILQ_INSERT_TAIL(&pci_vendors, cv, link);
500 /* Check for device entry */
501 if (buf[0] == '\t' && sscanf(buf + 1, "%04x %[^\n]", &id, str) == 2) {
502 if ((id == 0) || (strlen(str) < 1))
505 warnx("device entry with no vendor!");
508 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) {
509 warn("allocating device entry");
513 if ((cd->desc = strdup(str)) == NULL) {
515 warn("allocating device description");
520 TAILQ_INSERT_TAIL(&cv->devs, cd, link);
524 /* It's a comment or junk, ignore it */
534 read_config(int fd, struct pcisel *sel, long reg, int width)
542 if (ioctl(fd, PCIOCREAD, &pi) < 0)
543 err(1, "ioctl(PCIOCREAD)");
549 getsel(const char *str)
551 char *ep = strchr(str, '@');
553 struct pcisel sel = {0,0,0,0};
554 unsigned long selarr[4];
558 ep = __DECONST(char *, str);
564 if (strncmp(ep, "pci", 3) == 0) {
568 selarr[i++] = strtoul(ep, &ep, 10);
569 } while ((*ep == ':' || *ep == '.') && *++ep != '\0' && i < 4);
572 sel.pc_func = selarr[--i];
575 sel.pc_dev = selarr[--i];
576 sel.pc_bus = selarr[--i];
578 sel.pc_domain = selarr[--i];
582 if (*ep != '\x0' || ep == epbase)
583 errx(1, "cannot parse selector %s", str);
588 readone(int fd, struct pcisel *sel, long reg, int width)
591 printf("%0*x", width*2, read_config(fd, sel, reg, width));
595 readit(const char *name, const char *reg, int width)
605 fd = open(_PATH_DEVPCI, O_RDWR, 0);
607 err(1, "%s", _PATH_DEVPCI);
609 rend = rstart = strtol(reg, &end, 0);
610 if (end && *end == ':') {
612 rend = strtol(end, (char **) 0, 0);
615 for (i = 1, r = rstart; r <= rend; i++, r += width) {
616 readone(fd, &sel, r, width);
617 if (i && !(i % 8)) putchar(' ');
618 putchar(i % (16/width) ? ' ' : '\n');
620 if (i % (16/width) != 1)
626 writeit(const char *name, const char *reg, const char *data, int width)
631 pi.pi_sel = getsel(name);
632 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */
634 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */
636 fd = open(_PATH_DEVPCI, O_RDWR, 0);
638 err(1, "%s", _PATH_DEVPCI);
640 if (ioctl(fd, PCIOCWRITE, &pi) < 0)
641 err(1, "ioctl(PCIOCWRITE)");
645 chkattached(const char *name, int width)
650 pi.pi_sel = getsel(name);
655 fd = open(_PATH_DEVPCI, O_RDWR, 0);
657 err(1, "%s", _PATH_DEVPCI);
659 if (ioctl(fd, PCIOCATTACHED, &pi) < 0)
660 err(1, "ioctl(PCIOCATTACHED)");
662 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */
663 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached");