1996-10-22 20:27:47 +00:00
|
|
|
/*
|
|
|
|
* Copyright 1996 Massachusetts Institute of Technology
|
|
|
|
*
|
|
|
|
* Permission to use, copy, modify, and distribute this software and
|
|
|
|
* its documentation for any purpose and without fee is hereby
|
|
|
|
* granted, provided that both the above copyright notice and this
|
|
|
|
* permission notice appear in all copies, that both the above
|
|
|
|
* copyright notice and this permission notice appear in all
|
|
|
|
* supporting documentation, and that the name of M.I.T. not be used
|
|
|
|
* in advertising or publicity pertaining to distribution of the
|
|
|
|
* software without specific, written prior permission. M.I.T. makes
|
|
|
|
* no representations about the suitability of this software for any
|
|
|
|
* purpose. It is provided "as is" without express or implied
|
|
|
|
* warranty.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
|
|
|
|
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
|
|
|
|
* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
* SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
|
1997-10-06 11:38:30 +00:00
|
|
|
#ifndef lint
|
|
|
|
static const char rcsid[] =
|
1998-11-12 00:22:30 +00:00
|
|
|
"$Id: pciconf.c,v 1.6 1998/09/15 08:21:13 gibbs Exp $";
|
1997-10-06 11:38:30 +00:00
|
|
|
#endif /* not lint */
|
|
|
|
|
1996-10-22 20:27:47 +00:00
|
|
|
#include <sys/types.h>
|
|
|
|
#include <sys/fcntl.h>
|
|
|
|
|
|
|
|
#include <err.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
#include <pci/pcivar.h>
|
|
|
|
#include <pci/pci_ioctl.h>
|
|
|
|
|
|
|
|
#include "pathnames.h"
|
|
|
|
|
|
|
|
static void list_devs(void);
|
|
|
|
static void readit(const char *, const char *, int);
|
|
|
|
static void writeit(const char *, const char *, const char *, int);
|
1997-01-21 23:29:15 +00:00
|
|
|
static void chkattached(const char *, int);
|
1996-10-22 20:27:47 +00:00
|
|
|
|
1997-01-21 23:29:15 +00:00
|
|
|
static exitstatus = 0;
|
1996-10-22 20:27:47 +00:00
|
|
|
|
|
|
|
static void
|
1997-10-06 11:38:30 +00:00
|
|
|
usage()
|
|
|
|
{
|
|
|
|
fprintf(stderr, "%s\n%s\n%s\n%s\n",
|
|
|
|
"usage: pciconf -l",
|
|
|
|
" pciconf -a sel",
|
|
|
|
" pciconf -r [-b | -h] sel addr",
|
|
|
|
" pciconf -w [-b | -h] sel addr [value]");
|
1996-11-16 22:05:52 +00:00
|
|
|
exit (1);
|
1996-10-22 20:27:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
int c;
|
1997-01-21 23:29:15 +00:00
|
|
|
int listmode, readmode, writemode, attachedmode;
|
1996-10-22 20:27:47 +00:00
|
|
|
int byte, isshort;
|
|
|
|
|
1997-01-21 23:29:15 +00:00
|
|
|
listmode = readmode = writemode = attachedmode = byte = isshort = 0;
|
1996-10-22 20:27:47 +00:00
|
|
|
|
1997-03-31 05:11:47 +00:00
|
|
|
while ((c = getopt(argc, argv, "alrwbh")) != -1) {
|
1996-10-22 20:27:47 +00:00
|
|
|
switch(c) {
|
1997-01-21 23:29:15 +00:00
|
|
|
case 'a':
|
|
|
|
attachedmode = 1;
|
|
|
|
break;
|
|
|
|
|
1996-10-22 20:27:47 +00:00
|
|
|
case 'l':
|
|
|
|
listmode = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'r':
|
|
|
|
readmode = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'w':
|
|
|
|
writemode = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'b':
|
|
|
|
byte = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'h':
|
|
|
|
isshort = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
1997-10-06 11:38:30 +00:00
|
|
|
usage();
|
1996-10-22 20:27:47 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((listmode && optind != argc)
|
|
|
|
|| (writemode && optind + 3 != argc)
|
1997-01-21 23:29:15 +00:00
|
|
|
|| (readmode && optind + 2 != argc)
|
|
|
|
|| (attachedmode && optind + 1 != argc))
|
1997-10-06 11:38:30 +00:00
|
|
|
usage();
|
1996-10-22 20:27:47 +00:00
|
|
|
|
|
|
|
if (listmode) {
|
|
|
|
list_devs();
|
1997-01-21 23:29:15 +00:00
|
|
|
} else if(attachedmode) {
|
|
|
|
chkattached(argv[optind],
|
|
|
|
byte ? 1 : isshort ? 2 : 4);
|
1996-10-22 20:27:47 +00:00
|
|
|
} else if(readmode) {
|
|
|
|
readit(argv[optind], argv[optind + 1],
|
|
|
|
byte ? 1 : isshort ? 2 : 4);
|
|
|
|
} else if(writemode) {
|
|
|
|
writeit(argv[optind], argv[optind + 1], argv[optind + 2],
|
|
|
|
byte ? 1 : isshort ? 2 : 4);
|
|
|
|
} else {
|
1997-10-06 11:38:30 +00:00
|
|
|
usage();
|
1996-10-22 20:27:47 +00:00
|
|
|
}
|
|
|
|
|
1997-01-21 23:29:15 +00:00
|
|
|
return exitstatus;
|
1996-10-22 20:27:47 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
list_devs(void)
|
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
struct pci_conf_io pc;
|
|
|
|
struct pci_conf conf[255], *p;
|
1998-11-12 00:22:30 +00:00
|
|
|
int none_count = 0;
|
1996-10-22 20:27:47 +00:00
|
|
|
|
1998-09-15 08:21:13 +00:00
|
|
|
fd = open(_PATH_DEVPCI, O_RDWR, 0);
|
1996-10-22 20:27:47 +00:00
|
|
|
if (fd < 0)
|
|
|
|
err(1, "%s", _PATH_DEVPCI);
|
|
|
|
|
1998-09-15 08:21:13 +00:00
|
|
|
bzero(&pc, sizeof(struct pci_conf_io));
|
|
|
|
pc.match_buf_len = sizeof(conf);
|
|
|
|
pc.matches = conf;
|
|
|
|
|
|
|
|
do {
|
|
|
|
if (ioctl(fd, PCIOCGETCONF, &pc) == -1)
|
|
|
|
err(1, "ioctl(PCIOCGETCONF)");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 255 entries should be more than enough for most people,
|
|
|
|
* but if someone has more devices, and then changes things
|
|
|
|
* around between ioctls, we'll do the cheezy thing and
|
|
|
|
* just bail. The alternative would be to go back to the
|
|
|
|
* beginning of the list, and print things twice, which may
|
|
|
|
* not be desireable.
|
|
|
|
*/
|
|
|
|
if (pc.status == PCI_GETCONF_LIST_CHANGED) {
|
|
|
|
warnx("PCI device list changed, please try again");
|
|
|
|
exitstatus = 1;
|
|
|
|
close(fd);
|
|
|
|
return;
|
|
|
|
} else if (pc.status == PCI_GETCONF_ERROR) {
|
|
|
|
warnx("Error returned from PCIOCGETCONF ioctl");
|
|
|
|
exitstatus = 1;
|
|
|
|
close(fd);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
for (p = conf; p < &conf[pc.num_matches]; p++) {
|
|
|
|
|
|
|
|
printf("%s%d@pci%d:%d:%d:\tclass=0x%06x card=0x%08lx "
|
|
|
|
"chip=0x%08lx rev=0x%02x hdr=0x%02x\n",
|
1998-11-12 00:22:30 +00:00
|
|
|
(p->pd_name && *p->pd_name) ? p->pd_name :
|
|
|
|
"none",
|
|
|
|
(p->pd_name && *p->pd_name) ? p->pd_unit :
|
|
|
|
none_count++,
|
1998-09-15 08:21:13 +00:00
|
|
|
p->pc_sel.pc_bus, p->pc_sel.pc_dev,
|
|
|
|
p->pc_sel.pc_func, (p->pc_class << 16) |
|
|
|
|
(p->pc_subclass << 8) | p->pc_progif,
|
|
|
|
(p->pc_subdevice << 16) | p->pc_subvendor,
|
|
|
|
(p->pc_device << 16) | p->pc_vendor,
|
|
|
|
p->pc_revid, p->pc_hdr);
|
|
|
|
}
|
|
|
|
} while (pc.status == PCI_GETCONF_MORE_DEVS);
|
1996-10-22 20:27:47 +00:00
|
|
|
|
|
|
|
close(fd);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct pcisel
|
|
|
|
getsel(const char *str)
|
|
|
|
{
|
|
|
|
char *ep = (char*) str;
|
|
|
|
struct pcisel sel;
|
|
|
|
|
|
|
|
if (strncmp(ep, "pci", 3) == 0) {
|
|
|
|
ep += 3;
|
|
|
|
sel.pc_bus = strtoul(ep, &ep, 0);
|
|
|
|
if (!ep || *ep++ != ':')
|
|
|
|
errx(1, "cannot parse selector %s", str);
|
|
|
|
sel.pc_dev = strtoul(ep, &ep, 0);
|
|
|
|
if (!ep || *ep != ':') {
|
|
|
|
sel.pc_func = 0;
|
|
|
|
} else {
|
|
|
|
ep++;
|
|
|
|
sel.pc_func = strtoul(ep, &ep, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (*ep == ':')
|
|
|
|
ep++;
|
|
|
|
if (*ep || ep == str)
|
|
|
|
errx(1, "cannot parse selector %s", str);
|
|
|
|
return sel;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
readit(const char *name, const char *reg, int width)
|
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
struct pci_io pi;
|
|
|
|
|
|
|
|
pi.pi_sel = getsel(name);
|
|
|
|
pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */
|
|
|
|
pi.pi_width = width;
|
|
|
|
|
|
|
|
fd = open(_PATH_DEVPCI, O_RDWR, 0);
|
|
|
|
if (fd < 0)
|
|
|
|
err(1, "%s", _PATH_DEVPCI);
|
|
|
|
|
|
|
|
if (ioctl(fd, PCIOCREAD, &pi) < 0)
|
|
|
|
err(1, "ioctl(PCIOCREAD)");
|
|
|
|
|
|
|
|
printf("0x%08x\n", pi.pi_data);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
writeit(const char *name, const char *reg, const char *data, int width)
|
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
struct pci_io pi;
|
|
|
|
|
|
|
|
pi.pi_sel = getsel(name);
|
|
|
|
pi.pi_reg = strtoul(reg, (char **)0, 0); /* XXX error check */
|
|
|
|
pi.pi_width = width;
|
|
|
|
pi.pi_data = strtoul(data, (char **)0, 0); /* XXX error check */
|
|
|
|
|
|
|
|
fd = open(_PATH_DEVPCI, O_RDWR, 0);
|
|
|
|
if (fd < 0)
|
|
|
|
err(1, "%s", _PATH_DEVPCI);
|
|
|
|
|
|
|
|
if (ioctl(fd, PCIOCWRITE, &pi) < 0)
|
|
|
|
err(1, "ioctl(PCIOCWRITE)");
|
|
|
|
}
|
1997-01-21 23:29:15 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
chkattached (const char *name, int width)
|
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
struct pci_io pi;
|
|
|
|
|
|
|
|
pi.pi_sel = getsel(name);
|
|
|
|
pi.pi_reg = 0;
|
|
|
|
pi.pi_width = width;
|
|
|
|
pi.pi_data = 0;
|
|
|
|
|
|
|
|
fd = open(_PATH_DEVPCI, O_RDWR, 0);
|
|
|
|
if (fd < 0)
|
|
|
|
err(1, "%s", _PATH_DEVPCI);
|
|
|
|
|
|
|
|
if (ioctl(fd, PCIOCATTACHED, &pi) < 0)
|
|
|
|
err(1, "ioctl(PCIOCATTACHED)");
|
|
|
|
|
|
|
|
exitstatus = pi.pi_data ? 0 : 2; /* exit(2), if NOT attached */
|
|
|
|
printf("%s: %s%s\n", name, pi.pi_data == 0 ? "not " : "", "attached");
|
|
|
|
}
|