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/* $OpenBSD: dk.c,v 1.14 2012/02/25 20:12:00 miod Exp $ */
/*
* Copyright 1996 1995 by Open Software Foundation, Inc.
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "libsa.h"
#include <sys/param.h>
#include <sys/disklabel.h>
#include <sys/reboot.h>
#include <machine/pdc.h>
#include <machine/iomod.h>
#include "dev_hppa.h"
const char *
dk_disklabel(struct hppa_dev *dp, struct disklabel *label)
{
char buf[DEV_BSIZE];
size_t ret;
if (iodcstrategy(dp, F_READ, LABELSECTOR, DEV_BSIZE, buf, &ret))
if (ret != DEV_BSIZE)
return "cannot read disklabel";
return (getdisklabel(buf, label));
}
int
dkopen(struct open_file *f, ...)
{
struct disklabel *lp;
struct hppa_dev *dp = f->f_devdata;
const char *st;
#ifdef DEBUG
if (debug)
printf("dkopen(%p)\n", f);
#endif
if (!(dp->pz_dev = pdc_findev(-1, PCL_RANDOM)))
return ENXIO;
lp = dp->label;
st = NULL;
#ifdef DEBUG
if (debug)
printf ("disklabel\n");
#endif
if ((st = dk_disklabel(dp, lp)) != NULL) {
#ifdef DEBUG
if (debug)
printf ("dkopen: %s\n", st);
#endif
/* we do not know if it's a disk or net, but do not fail */
} else {
u_int i;
i = B_PARTITION(dp->bootdev);
if (i >= lp->d_npartitions || !lp->d_partitions[i].p_size)
return (EPART);
dp->fsoff = lp->d_partitions[i].p_offset;
}
#ifdef DEBUG
if (debug)
printf ("dkopen() ret\n");
#endif
return (0);
}
int
dkclose(f)
struct open_file *f;
{
free (f->f_devdata, sizeof(struct hppa_dev));
f->f_devdata = NULL;
return 0;
}
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