void
wdprobe(void)
{
struct wd_softc *wd = wd_devs;
u_int chan, drive, unit = 0;
for (chan = 0; chan < PCIIDE_NUM_CHANNELS; chan++) {
if (wdc_init(wd, chan) != 0)
continue;
for (drive = 0; drive < wd->sc_channel.ndrives; drive++) {
wd->sc_unit = unit;
wd->sc_drive = drive;
if (wd_get_params(wd) != 0)
continue;
DPRINTF(("wd%d: channel %d drive %d\n",
unit, chan, drive));
unit++;
wd++;
}
}
wd_ndevs = unit;
}
/*
* Open device (read drive parameters and disklabel)
*/
int
wdopen(struct open_file *f, ...)
{
int error;
va_list ap;
u_int unit, part;
struct wd_softc *wd;
va_start(ap, f);
unit = va_arg(ap, u_int);
part = va_arg(ap, u_int);
va_end(ap);
DPRINTF(("wdopen: %d:%d\n", unit, part));
wd = alloc(sizeof(struct wd_softc));
if (wd == NULL)
return ENOMEM;
memset(wd, 0, sizeof(struct wd_softc));
if (wdc_init(wd, &unit) != 0)
return (ENXIO);
wd->sc_part = part;
wd->sc_unit = unit;
if ((error = wd_get_params(wd)) != 0)
return error;
if ((error = wdgetdisklabel(wd)) != 0)
return error;
f->f_devdata = wd;
return 0;
}
