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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $FreeBSD$
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <err.h>
#include <sys/types.h>
#include "libdisk.h"
void
Set_Bios_Geom(struct disk *disk, u_long cyl, u_long hd, u_long sect)
{
disk->bios_cyl = cyl;
disk->bios_hd = hd;
disk->bios_sect = sect;
#ifndef PC98
Bios_Limit_Chunk(disk->chunks,1024*hd*sect);
#endif
}
/* XXX - parameters should change to fit for PC-98, but I'm not sure */
void
Sanitize_Bios_Geom(struct disk *disk)
{
int sane = 1;
if (disk->bios_cyl > 1024)
sane = 0;
if (disk->bios_hd > 16)
sane = 0;
if (disk->bios_sect > 63)
sane = 0;
if (disk->bios_cyl*disk->bios_hd*disk->bios_sect !=
disk->chunks->size)
sane = 0;
if (sane)
return;
/* First try something that IDE can handle */
disk->bios_sect = 63;
disk->bios_hd = 16;
disk->bios_cyl = disk->chunks->size/(disk->bios_sect*disk->bios_hd);
if (disk->bios_cyl < 1024)
return;
/* Hmm, try harder... */
disk->bios_hd = 255;
disk->bios_cyl = disk->chunks->size/(disk->bios_sect*disk->bios_hd);
return;
}
void
All_FreeBSD(struct disk *d, int force_all)
{
struct chunk *c;
again:
for (c=d->chunks->part;c;c=c->next)
if (c->type != unused) {
Delete_Chunk(d,c);
goto again;
}
c=d->chunks;
if (force_all) {
Sanitize_Bios_Geom(d);
#ifdef PC98
Create_Chunk(d,c->offset,c->size,freebsd,0x494,
CHUNK_FORCE_ALL,"FreeBSD");
#else
Create_Chunk(d,c->offset,c->size,freebsd,0xa5,
CHUNK_FORCE_ALL);
#endif
} else {
#ifdef PC98
Create_Chunk(d,c->offset,c->size,freebsd,0x494, 0,"FreeBSD");
#else
Create_Chunk(d,c->offset,c->size,freebsd,0xa5, 0);
#endif
}
}
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