/*
* Fabricate a default disk label, and try to read the correct one.
*/
int
wdgetdisklabel(dev_t dev, struct wd_softc *wd, struct disklabel *lp,
int spoofonly)
{
int error;
WDCDEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS);
wdgetdefaultlabel(wd, lp);
if (wd->drvp->state > RECAL)
wd->drvp->drive_flags |= DRIVE_RESET;
error = readdisklabel(DISKLABELDEV(dev), wdstrategy, lp,
spoofonly);
if (wd->drvp->state > RECAL)
wd->drvp->drive_flags |= DRIVE_RESET;
return (error);
}
/*
* Read disk label from the device.
*/
int
wdgetdisklabel(struct wd_softc *wd)
{
struct mbr_sector *mbr;
struct mbr_partition *mp;
struct disklabel *lp;
size_t rsize;
int sector, i;
char *msg;
uint8_t buf[DEV_BSIZE];
wdgetdefaultlabel(wd, &wd->sc_label);
/*
* Find NetBSD Partition in DOS partition table.
*/
sector = 0;
if (wdstrategy(wd, F_READ, MBR_BBSECTOR, DEV_BSIZE, buf, &rsize))
return EOFFSET;
mbr = (struct mbr_sector *)buf;
if (mbr->mbr_magic == htole16(MBR_MAGIC)) {
/*
* Lookup NetBSD slice. If there is none, go ahead
* and try to read the disklabel off sector #0.
*/
mp = mbr->mbr_parts;
for (i = 0; i < MBR_PART_COUNT; i++) {
if (mp[i].mbrp_type == MBR_PTYPE_NETBSD) {
sector = le32toh(mp[i].mbrp_start);
break;
}
}
}
if (wdstrategy(wd, F_READ, sector + LABELSECTOR, DEV_BSIZE,
buf, &rsize))
return EOFFSET;
msg = getdisklabel((const char *)buf + LABELOFFSET, &wd->sc_label);
if (msg)
printf("ide/0/%s/0: getdisklabel: %s\n",
(wd->sc_unit == 0) ? "master" : "slave", msg);
lp = &wd->sc_label;
/* check partition */
if ((wd->sc_part >= lp->d_npartitions) ||
(lp->d_partitions[wd->sc_part].p_fstype == FS_UNUSED)) {
DPRINTF(("illegal partition\n"));
return EPART;
}
DPRINTF(("label info: d_secsize %d, d_nsectors %d, d_ncylinders %d,"
" d_ntracks %d, d_secpercyl %d\n",
wd->sc_label.d_secsize,
wd->sc_label.d_nsectors,
wd->sc_label.d_ncylinders,
wd->sc_label.d_ntracks,
wd->sc_label.d_secpercyl));
return 0;
}
/*
* Read disk label from the device.
*/
int
wdgetdisklabel(struct wd_softc *wd)
{
char *msg;
int sector;
size_t rsize;
struct disklabel *lp;
uint8_t buf[DEV_BSIZE];
wdgetdefaultlabel(wd, &wd->sc_label);
/*
* Find NetBSD Partition in DOS partition table.
*/
sector = 0;
if (wdstrategy(wd, F_READ, MBR_BBSECTOR, DEV_BSIZE, buf, &rsize))
return EOFFSET;
if (*(uint16_t *)&buf[MBR_MAGIC_OFFSET] == MBR_MAGIC) {
int i;
struct mbr_partition *mp;
/*
* Lookup NetBSD slice. If there is none, go ahead
* and try to read the disklabel off sector #0.
*/
mp = (struct mbr_partition *)&buf[MBR_PART_OFFSET];
for (i = 0; i < MBR_PART_COUNT; i++) {
if (mp[i].mbrp_type == MBR_PTYPE_NETBSD) {
sector = mp[i].mbrp_start;
break;
}
}
}
if (wdstrategy(wd, F_READ, sector + LABELSECTOR, DEV_BSIZE,
buf, &rsize))
return EOFFSET;
if ((msg = getdisklabel(buf + LABELOFFSET, &wd->sc_label)))
printf("wd%d: getdisklabel: %s\n", wd->sc_unit, msg);
lp = &wd->sc_label;
/* check partition */
if ((wd->sc_part >= lp->d_npartitions) ||
(lp->d_partitions[wd->sc_part].p_fstype == FS_UNUSED)) {
DPRINTF(("illegal partition\n"));
return EPART;
}
DPRINTF(("label info: d_secsize %d, d_nsectors %d, d_ncylinders %d,"
"d_ntracks %d, d_secpercyl %d\n",
wd->sc_label.d_secsize,
wd->sc_label.d_nsectors,
wd->sc_label.d_ncylinders,
wd->sc_label.d_ntracks,
wd->sc_label.d_secpercyl));
return 0;
}
