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/* $OpenBSD: dev_i386.c,v 1.22 2019/04/25 20:19:30 naddy Exp $ */
/*
* Copyright (c) 1996-1999 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/disklabel.h>
#include <dev/cons.h>
#include "libsa.h"
#include "biosdev.h"
#include "disk.h"
#ifdef SOFTRAID
#include <dev/biovar.h>
#include <dev/softraidvar.h>
#include <lib/libsa/softraid.h>
#include "softraid_amd64.h"
#endif
extern int debug;
/* XXX use slot for 'rd' for 'hd' pseudo-device */
const char bdevs[][4] = {
"wd", "", "fd", "", "sd", "st", "cd", "",
"", "", "", "", "", "", "", "", "", "hd", ""
};
const int nbdevs = nitems(bdevs);
const char cdevs[][4] = {
"cn", "", "", "", "", "", "", "",
"com", "", "", "", "pc"
};
const int ncdevs = nitems(cdevs);
/* pass dev_t to the open routines */
int
devopen(struct open_file *f, const char *fname, char **file)
{
struct devsw *dp = devsw;
register int i, rc = 1;
*file = (char *)fname;
#ifdef DEBUG
if (debug)
printf("devopen:");
#endif
for (i = 0; i < ndevs && rc != 0; dp++, i++) {
#ifdef DEBUG
if (debug)
printf(" %s: ", dp->dv_name);
#endif
if ((rc = (*dp->dv_open)(f, file)) == 0) {
f->f_dev = dp;
#ifdef EFIBOOT
if (strcmp("TFTP", dp->dv_name) != 0) {
/*
* Clear bootmac, to signal that we loaded
* this file from a non-network device.
*/
extern char *bootmac;
bootmac = NULL;
}
#endif
return 0;
}
#ifdef DEBUG
else if (debug)
printf("%d", rc);
#endif
}
#ifdef DEBUG
if (debug)
putchar('\n');
#endif
if ((f->f_flags & F_NODEV) == 0)
f->f_dev = dp;
return rc;
}
void
devboot(dev_t bootdev, char *p)
{
#ifdef SOFTRAID
struct sr_boot_volume *bv;
struct sr_boot_chunk *bc;
struct diskinfo *dip = NULL;
#endif
int sr_boot_vol = -1;
int part_type = FS_UNUSED;
#ifdef EFIBOOT
if (!bootdev) {
*p++ = 't';
*p++ = 'f';
*p++ = 't';
*p++ = 'p';
*p = '\0';
return;
}
#endif
#ifdef SOFTRAID
/*
* Determine the partition type for the 'a' partition of the
* boot device.
*/
TAILQ_FOREACH(dip, &disklist, list)
if (dip->bios_info.bios_number == bootdev &&
(dip->bios_info.flags & BDI_BADLABEL) == 0)
part_type = dip->disklabel.d_partitions[0].p_fstype;
/*
* See if we booted from a disk that is a member of a bootable
* softraid volume.
*/
SLIST_FOREACH(bv, &sr_volumes, sbv_link) {
if (bv->sbv_flags & BIOC_SCBOOTABLE)
SLIST_FOREACH(bc, &bv->sbv_chunks, sbc_link)
if (bc->sbc_disk == bootdev)
sr_boot_vol = bv->sbv_unit;
if (sr_boot_vol != -1)
break;
}
#endif
if (sr_boot_vol != -1 && part_type != FS_BSDFFS) {
*p++ = 's';
*p++ = 'r';
*p++ = '0' + sr_boot_vol;
} else if (bootdev & 0x100) {
*p++ = 'c';
*p++ = 'd';
*p++ = '0';
} else {
if (bootdev & 0x80)
*p++ = 'h';
else
*p++ = 'f';
*p++ = 'd';
*p++ = '0' + (bootdev & 0x7f);
}
*p++ = 'a';
*p = '\0';
}
char ttyname_buf[8];
char *
ttyname(int fd)
{
snprintf(ttyname_buf, sizeof ttyname_buf, "%s%d",
cdevs[major(cn_tab->cn_dev)], minor(cn_tab->cn_dev));
return ttyname_buf;
}
dev_t
ttydev(char *name)
{
int i, unit = -1;
char *no = name + strlen(name) - 1;
while (no >= name && *no >= '0' && *no <= '9')
unit = (unit < 0 ? 0 : (unit * 10)) + *no-- - '0';
if (no < name || unit < 0)
return NODEV;
for (i = 0; i < ncdevs; i++)
if (strncmp(name, cdevs[i], no - name + 1) == 0)
return makedev(i, unit);
return NODEV;
}
int
cnspeed(dev_t dev, int sp)
{
if (major(dev) == 8) /* comN */
return comspeed(dev, sp);
/* pc0 and anything else */
return 9600;
}
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