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 1.11.2.3 2002/09/17 22:09:15 jdp 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>
41 #include <sys/pciio.h>
42 #include <sys/queue.h>
44 #include <bus/pci/pcireg.h>
46 #include "pathnames.h"
48 struct pci_device_info
50 TAILQ_ENTRY(pci_device_info) link;
55 struct pci_vendor_info
57 TAILQ_ENTRY(pci_vendor_info) link;
58 TAILQ_HEAD(,pci_device_info) devs;
63 TAILQ_HEAD(,pci_vendor_info) pci_vendors;
65 static void list_devs(int vendors);
66 static void list_verbose(struct pci_conf *p);
67 static const char *guess_class(struct pci_conf *p);
68 static const char *guess_subclass(struct pci_conf *p);
69 static int load_vendors(void);
70 static void readit(const char *, const char *, int);
71 static void writeit(const char *, const char *, const char *, int);
72 static void chkattached(const char *, int);
74 static int exitstatus = 0;
79 fprintf(stderr, "%s\n%s\n%s\n%s\n",
80 "usage: pciconf -l [-v]",
81 " pciconf -a selector",
82 " pciconf -r [-b | -h] selector addr[:addr2]",
83 " pciconf -w [-b | -h] selector addr value");
88 main(int argc, char **argv)
91 int listmode, readmode, writemode, attachedmode, verbose;
94 listmode = readmode = writemode = attachedmode = verbose = byte = isshort = 0;
96 while ((c = getopt(argc, argv, "alrwbhv")) != -1) {
131 if ((listmode && optind != argc)
132 || (writemode && optind + 3 != argc)
133 || (readmode && optind + 2 != argc)
134 || (attachedmode && optind + 1 != argc))
139 } else if(attachedmode) {
140 chkattached(argv[optind],
141 byte ? 1 : isshort ? 2 : 4);
142 } else if(readmode) {
143 readit(argv[optind], argv[optind + 1],
144 byte ? 1 : isshort ? 2 : 4);
145 } else if(writemode) {
146 writeit(argv[optind], argv[optind + 1], argv[optind + 2],
147 byte ? 1 : isshort ? 2 : 4);
156 list_devs(int verbose)
159 struct pci_conf_io pc;
160 struct pci_conf conf[255], *p;
166 fd = open(_PATH_DEVPCI, O_RDWR, 0);
168 err(1, "%s", _PATH_DEVPCI);
170 bzero(&pc, sizeof(struct pci_conf_io));
171 pc.match_buf_len = sizeof(conf);
175 if (ioctl(fd, PCIOCGETCONF, &pc) == -1)
176 err(1, "ioctl(PCIOCGETCONF)");
179 * 255 entries should be more than enough for most people,
180 * but if someone has more devices, and then changes things
181 * around between ioctls, we'll do the cheezy thing and
182 * just bail. The alternative would be to go back to the
183 * beginning of the list, and print things twice, which may
186 if (pc.status == PCI_GETCONF_LIST_CHANGED) {
187 warnx("PCI device list changed, please try again");
191 } else if (pc.status == PCI_GETCONF_ERROR) {
192 warnx("error returned from PCIOCGETCONF ioctl");
197 for (p = conf; p < &conf[pc.num_matches]; p++) {
199 printf("%s%d@pci%d:%d:%d:\tclass=0x%06x card=0x%08x "
200 "chip=0x%08x rev=0x%02x hdr=0x%02x\n",
201 (p->pd_name && *p->pd_name) ? p->pd_name :
203 (p->pd_name && *p->pd_name) ? (int)p->pd_unit :
205 p->pc_sel.pc_bus, p->pc_sel.pc_dev,
206 p->pc_sel.pc_func, (p->pc_class << 16) |
207 (p->pc_subclass << 8) | p->pc_progif,
208 (p->pc_subdevice << 16) | p->pc_subvendor,
209 (p->pc_device << 16) | p->pc_vendor,
210 p->pc_revid, p->pc_hdr);
214 } while (pc.status == PCI_GETCONF_MORE_DEVS);
220 list_verbose(struct pci_conf *p)
222 struct pci_vendor_info *vi;
223 struct pci_device_info *di;
226 TAILQ_FOREACH(vi, &pci_vendors, link) {
227 if (vi->id == p->pc_vendor) {
228 printf(" vendor = '%s'\n", vi->desc);
235 TAILQ_FOREACH(di, &vi->devs, link) {
236 if (di->id == p->pc_device) {
237 printf(" device = '%s'\n", di->desc);
242 if ((dp = guess_class(p)) != NULL)
243 printf(" class = %s\n", dp);
244 if ((dp = guess_subclass(p)) != NULL)
245 printf(" subclass = %s\n", dp);
249 * This is a direct cut-and-paste from the table in sys/bus/pci/pcireg.h.
256 } pci_nomatch_tab[] = {
257 {PCIC_OLD, -1, "old"},
258 {PCIC_OLD, PCIS_OLD_NONVGA, "non-VGA display device"},
259 {PCIC_OLD, PCIS_OLD_VGA, "VGA-compatible display device"},
260 {PCIC_STORAGE, -1, "mass storage"},
261 {PCIC_STORAGE, PCIS_STORAGE_SCSI, "SCSI"},
262 {PCIC_STORAGE, PCIS_STORAGE_IDE, "ATA"},
263 {PCIC_STORAGE, PCIS_STORAGE_FLOPPY, "floppy disk"},
264 {PCIC_STORAGE, PCIS_STORAGE_IPI, "IPI"},
265 {PCIC_STORAGE, PCIS_STORAGE_RAID, "RAID"},
266 {PCIC_STORAGE, PCIS_STORAGE_ATA, "ATA"},
267 {PCIC_STORAGE, PCIS_STORAGE_SATA, "SATA"},
268 {PCIC_NETWORK, -1, "network"},
269 {PCIC_NETWORK, PCIS_NETWORK_ETHERNET, "ethernet"},
270 {PCIC_NETWORK, PCIS_NETWORK_TOKENRING, "token ring"},
271 {PCIC_NETWORK, PCIS_NETWORK_FDDI, "fddi"},
272 {PCIC_NETWORK, PCIS_NETWORK_ATM, "ATM"},
273 {PCIC_NETWORK, PCIS_NETWORK_ISDN, "ISDN"},
274 {PCIC_DISPLAY, -1, "display"},
275 {PCIC_DISPLAY, PCIS_DISPLAY_VGA, "VGA"},
276 {PCIC_DISPLAY, PCIS_DISPLAY_XGA, "XGA"},
277 {PCIC_DISPLAY, PCIS_DISPLAY_3D, "3D"},
278 {PCIC_MULTIMEDIA, -1, "multimedia"},
279 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_VIDEO, "video"},
280 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_AUDIO, "audio"},
281 {PCIC_MULTIMEDIA, PCIS_MULTIMEDIA_TEL, "telephony"},
282 {PCIC_MEMORY, -1, "memory"},
283 {PCIC_MEMORY, PCIS_MEMORY_RAM, "RAM"},
284 {PCIC_MEMORY, PCIS_MEMORY_FLASH, "flash"},
285 {PCIC_BRIDGE, -1, "bridge"},
286 {PCIC_BRIDGE, PCIS_BRIDGE_HOST, "HOST-PCI"},
287 {PCIC_BRIDGE, PCIS_BRIDGE_ISA, "PCI-ISA"},
288 {PCIC_BRIDGE, PCIS_BRIDGE_EISA, "PCI-EISA"},
289 {PCIC_BRIDGE, PCIS_BRIDGE_MCA, "PCI-MCA"},
290 {PCIC_BRIDGE, PCIS_BRIDGE_PCI, "PCI-PCI"},
291 {PCIC_BRIDGE, PCIS_BRIDGE_PCMCIA, "PCI-PCMCIA"},
292 {PCIC_BRIDGE, PCIS_BRIDGE_NUBUS, "PCI-NuBus"},
293 {PCIC_BRIDGE, PCIS_BRIDGE_CARDBUS, "PCI-CardBus"},
294 {PCIC_BRIDGE, PCIS_BRIDGE_INFINI, "PCI-InfiniBand"},
295 {PCIC_BRIDGE, PCIS_BRIDGE_OTHER, "PCI-unknown"},
296 {PCIC_SIMPLECOMM, -1, "simple comms"},
297 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_UART, "UART"}, /* could detect 16550 */
298 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_PAR, "parallel port"},
299 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MULTSER,"multiport serial"},
300 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_MODEM, "generic modem"},
301 {PCIC_SIMPLECOMM, PCIS_SIMPLECOMM_SMART, "smartcard"},
302 {PCIC_BASEPERIPH, -1, "base peripheral"},
303 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_PIC, "interrupt controller"},
304 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_DMA, "DMA controller"},
305 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_TIMER, "timer"},
306 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_RTC, "realtime clock"},
307 {PCIC_BASEPERIPH, PCIS_BASEPERIPH_HOTPLUG,"PCI Hotplug"},
308 {PCIC_INPUTDEV, -1, "input device"},
309 {PCIC_INPUTDEV, PCIS_INPUTDEV_KEYBOARD, "keyboard"},
310 {PCIC_INPUTDEV, PCIS_INPUTDEV_DIGITIZER,"digitizer"},
311 {PCIC_INPUTDEV, PCIS_INPUTDEV_MOUSE, "mouse"},
312 {PCIC_INPUTDEV, PCIS_INPUTDEV_SCANNER, "scanner"},
313 {PCIC_INPUTDEV, PCIS_INPUTDEV_GAMEPORT, "gameport"},
314 {PCIC_DOCKING, -1, "docking station"},
315 {PCIC_PROCESSOR, -1, "processor"},
316 {PCIC_SERIALBUS, -1, "serial bus"},
317 {PCIC_SERIALBUS, PCIS_SERIALBUS_FW, "FireWire"},
318 {PCIC_SERIALBUS, PCIS_SERIALBUS_ACCESS, "AccessBus"},
319 {PCIC_SERIALBUS, PCIS_SERIALBUS_SSA, "SSA"},
320 {PCIC_SERIALBUS, PCIS_SERIALBUS_USB, "USB"},
321 {PCIC_SERIALBUS, PCIS_SERIALBUS_FC, "Fibre Channel"},
322 {PCIC_SERIALBUS, PCIS_SERIALBUS_SMBUS, "SMBus"},
323 {PCIC_SERIALBUS, PCIS_SERIALBUS_INFINI, "InfiniBand"},
324 {PCIC_WIRELESS, -1, "wireless"},
325 {PCIC_WIRELESS, PCIS_WIRELESS_IRDA, "iRDA"},
326 {PCIC_WIRELESS, PCIS_WIRELESS_IR, "consumer IR"},
327 {PCIC_WIRELESS, PCIS_WIRELESS_RF, "RF controller"},
328 {PCIC_WIRELESS, PCIS_WIRELESS_BLUETOOTH,"Bluetooth"},
329 {PCIC_WIRELESS, PCIS_WIRELESS_BROADBAND,"broadband"},
330 {PCIC_WIRELESS, PCIS_WIRELESS_80211A, "Ethernet (802.11a)"},
331 {PCIC_WIRELESS, PCIS_WIRELESS_80211B, "Ethernet (802.11b)"},
332 {PCIC_I2O, -1, "I2O"},
333 {PCIC_I2O, PCIS_I2O_10, "I2O 1.0"},
334 {PCIC_SATELLITE, -1, "satellite"},
335 {PCIC_CRYPTO, -1, "crypto controller"},
336 {PCIC_SIGPROC, -1, "signal processing"},
341 guess_class(struct pci_conf *p)
345 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) {
346 if (pci_nomatch_tab[i].class == p->pc_class)
347 return(pci_nomatch_tab[i].desc);
353 guess_subclass(struct pci_conf *p)
357 for (i = 0; pci_nomatch_tab[i].desc != NULL; i++) {
358 if ((pci_nomatch_tab[i].class == p->pc_class) &&
359 (pci_nomatch_tab[i].subclass == p->pc_subclass))
360 return(pci_nomatch_tab[i].desc);
370 struct pci_vendor_info *cv;
371 struct pci_device_info *cd;
372 char buf[100], str[100];
376 * Locate the database and initialise.
378 TAILQ_INIT(&pci_vendors);
379 if ((dbf = getenv("PCICONF_VENDOR_DATABASE")) == NULL)
381 if ((db = fopen(dbf, "r")) == NULL)
388 * Scan input lines from the database
391 if (fgets(buf, sizeof(buf), db) == NULL)
394 /* Check for vendor entry */
395 if ((buf[0] != '\t') && (sscanf(buf, "%04x\t%[^\n]", &id, str) == 2)) {
396 if ((id == 0) || (strlen(str) < 1))
398 if ((cv = malloc(sizeof(struct pci_vendor_info))) == NULL) {
399 warn("allocating vendor entry");
403 if ((cv->desc = strdup(str)) == NULL) {
405 warn("allocating vendor description");
410 TAILQ_INIT(&cv->devs);
411 TAILQ_INSERT_TAIL(&pci_vendors, cv, link);
415 /* Check for device entry */
416 if ((buf[0] == '\t') && (sscanf(buf + 1, "%04x\t%[^\n]", &id, str) == 2)) {
417 if ((id == 0) || (strlen(str) < 1))
420 warnx("device entry with no vendor!");
423 if ((cd = malloc(sizeof(struct pci_device_info))) == NULL) {
424 warn("allocating device entry");
428 if ((cd->desc = strdup(str)) == NULL) {
430 warn("allocating device description");
435 TAILQ_INSERT_TAIL(&cv->devs, cd, link);
439 /* It's a comment or junk, ignore it */
450 getsel(const char *str)
452 char *parse_buf, *ep;
455 parse_buf = strdup(str);
458 if (strncmp(ep, "pci", 3) == 0) {
460 sel.pc_bus = strtoul(ep, &ep, 0);
461 if (!ep || *ep++ != ':')
462 errx(1, "cannot parse selector %s", str);
463 sel.pc_dev = strtoul(ep, &ep, 0);
464 if (!ep || *ep != ':') {
468 sel.pc_func = strtoul(ep, &ep, 0);
473 if (*ep || ep == parse_buf)
474 errx(1, "cannot parse selector %s", str);
481 readone(int fd, struct pcisel *sel, long reg, int width)
489 if (ioctl(fd, PCIOCREAD, &pi) < 0)
490 err(1, "ioctl(PCIOCREAD)");
492 printf("0x%08x", pi.pi_data);
496 readit(const char *name, const char *reg, int width)
506 fd = open(_PATH_DEVPCI, O_RDWR, 0);
508 err(1, "%s", _PATH_DEVPCI);
510 rend = rstart = strtol(reg, &end, 0);
511 if (end && *end == ':') {
513 rend = strtol(end, (char **) 0, 0);
516 for (i = 1, r = rstart; r <= rend; i++, r += width) {
517 readone(fd, &sel, r, width);
518 putchar(i % 4 ? ' ' : '\n');
526 writeit(const char *name, const char *reg, const char *data, int width)
531 pi.pi_sel = getsel(name);
532 pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */
534 pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */
536 fd = open(_PATH_DEVPCI, O_RDWR, 0);
538 err(1, "%s", _PATH_DEVPCI);
540 if (ioctl(fd, PCIOCWRITE, &pi) < 0)
541 err(1, "ioctl(PCIOCWRITE)");
545 chkattached (const char *name, int width)
550 pi.pi_sel = getsel(name);
555 fd = open(_PATH_DEVPCI, O_RDWR, 0);
557 err(1, "%s", _PATH_DEVPCI);
559 if (ioctl(fd, PCIOCATTACHED, &pi) < 0)
560 err(1, "ioctl(PCIOCATTACHED)");
562 exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */
563 printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached");