d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add PCI LKM support:New -a option checks whether a driver has been assigned to a device.

Browse Source
This commit is contained in:
Stefan Eßer 1997-01-21 23:29:15 +00:00
parent 993dec9d58
commit b755685be8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=21935
1 changed files with 39 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
usr.sbin/pciconf/pciconf.c
View File

@ -46,13 +46,16 @@
static void list_devs(void);
static void readit(const char *, const char *, int);
static void writeit(const char *, const char *, const char *, int);
static void chkattached(const char *, int);
static exitstatus = 0;
static void
usage(const char *argv0) {
fprintf(stderr, "usage:\n\t%s -l\n"
"\t%s -a sel\n"
"\t%s [-r|-w] [-bh] sel addr [value]\n",
argv0, argv0);
argv0, argv0, argv0);
exit (1);
}
@ -60,13 +63,17 @@ int
main(int argc, char **argv)
{
int c;
int listmode, readmode, writemode;
int listmode, readmode, writemode, attachedmode;
int byte, isshort;
listmode = readmode = writemode = byte = isshort = 0;
listmode = readmode = writemode = attachedmode = byte = isshort = 0;
while ((c = getopt(argc, argv, "lrwbh")) != EOF) {
while ((c = getopt(argc, argv, "alrwbh")) != EOF) {
switch(c) {
case 'a':
attachedmode = 1;
break;
case 'l':
listmode = 1;
break;
@ -94,11 +101,15 @@ main(int argc, char **argv)
if ((listmode && optind != argc)
|| (writemode && optind + 3 != argc)
|| (readmode && optind + 2 != argc))
|| (readmode && optind + 2 != argc)
|| (attachedmode && optind + 1 != argc))
usage(argv[0]);
if (listmode) {
list_devs();
} else if(attachedmode) {
chkattached(argv[optind],
byte ? 1 : isshort ? 2 : 4);
} else if(readmode) {
readit(argv[optind], argv[optind + 1],
byte ? 1 : isshort ? 2 : 4);
@ -109,7 +120,7 @@ main(int argc, char **argv)
usage(argv[0]);
}
return 0;
return exitstatus;
}
static void
@ -203,3 +214,25 @@ writeit(const char *name, const char *reg, const char *data, int width)
if (ioctl(fd, PCIOCWRITE, &pi) < 0)
err(1, "ioctl(PCIOCWRITE)");
}
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");
}