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Modify pciconf(8) so that it will print out PCI devices that have no driver

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configured in the kernel.  It gives them a device name of "none" and
monotonically incrementing unit numbers.  (starting at 0)  Before, pciconf
would just skip over unconfigured devices.  (unconfigured devices can be
detected because they have a null string for a device name)

Update the man page to reflect the new pciconf output.  Unfortunately, this
causes the sample 'pciconf -l' output lines to wrap, but I'm not sure what
to do about that really.

If anyone presents a reasonable case for printing out something other than
"none1" for unconfigured devices, I'm willing to listen.
This commit is contained in:
Kenneth D. Merry 1998-11-12 00:22:30 +00:00
parent 8aa83c6653
commit 7f054c59a5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=41103
2 changed files with 19 additions and 9 deletions
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18
usr.sbin/pciconf/pciconf.8
View File

@ -1,4 +1,4 @@
.\" $Id: pciconf.8,v 1.2 1997/02/22 16:09:06 peter Exp $
.\" $Id: pciconf.8,v 1.3 1997/10/06 11:38:29 charnier Exp $
.\" Copyright (c) 1997
.\" Stefan Esser <se@freebsd.org>. All rights reserved.
.\"
@ -50,14 +50,22 @@ With the
.Fl l
option, it lists all devices found by the boot probe in the following format:
.Bd -literal
pci0:4:0: class=0x010000 card=0x00000000 chip=0x000f1000 rev=0x01 hdr=0x00
pci0:5:0: class=0x000100 card=0x00000000 chip=0x88c15333 rev=0x00 hdr=0x00
pci0:6:0: class=0x020000 card=0x00000000 chip=0x802910ec rev=0x00 hdr=0x00
foo0@pci0:4:0: class=0x010000 card=0x00000000 chip=0x000f1000 rev=0x01 hdr=0x00
bar0@pci0:5:0: class=0x000100 card=0x00000000 chip=0x88c15333 rev=0x00 hdr=0x00
none0@pci0:6:0: class=0x020000 card=0x00000000 chip=0x802910ec rev=0x00 hdr=0x00
.Ed
.Pp
The first column gives the
device name, unit number, and
.Ar selector .
If there is no device configured in the kernel for the
.Tn PCI
device in question, the device name will be
.Dq none .
Unit numbers for unconfigured devices start at zero and are incremented for
each unconfigured device that is encountered. The
.Ar selector
in a form which may directly be used for the other forms of the command.
is in a form which may directly be used for the other forms of the command.
The second column is the class code, with the class byte printed as two
hex digits, followed by the sub-class and the interface bytes.
The third column gives the contents of the subvendorid register, introduced

10
usr.sbin/pciconf/pciconf.c
View File

@ -29,7 +29,7 @@
#ifndef lint
static const char rcsid[] =
"$Id: pciconf.c,v 1.5 1997/10/06 11:38:30 charnier Exp $";
"$Id: pciconf.c,v 1.6 1998/09/15 08:21:13 gibbs Exp $";
#endif /* not lint */
#include <sys/types.h>
@ -134,6 +134,7 @@ list_devs(void)
int fd;
struct pci_conf_io pc;
struct pci_conf conf[255], *p;
int none_count = 0;
fd = open(_PATH_DEVPCI, O_RDWR, 0);
if (fd < 0)
@ -167,12 +168,13 @@ list_devs(void)
return;
}
for (p = conf; p < &conf[pc.num_matches]; p++) {
if ((p->pd_name == NULL) || (*p->pd_name == '\0'))
continue;
printf("%s%d@pci%d:%d:%d:\tclass=0x%06x card=0x%08lx "
"chip=0x%08lx rev=0x%02x hdr=0x%02x\n",
p->pd_name, p->pd_unit,
(p->pd_name && *p->pd_name) ? p->pd_name :
"none",
(p->pd_name && *p->pd_name) ? p->pd_unit :
none_count++,
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,