2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
7 * ----------------------------------------------------------------------------
9 * $FreeBSD: src/lib/libdisk/change.c,v 1.14.2.5 2002/10/24 13:03:44 nyan Exp $
18 #include <sys/types.h>
22 Set_Bios_Geom(struct disk *disk, u_long cyl, u_long hd, u_long sect)
26 disk->bios_sect = sect;
30 Sanitize_Bios_Geom(struct disk *disk)
37 if (disk->bios_cyl >= 65536)
39 if (disk->bios_cyl > 1024)
42 if (disk->bios_hd > 16)
45 if (disk->bios_sect >= 256)
47 if (disk->bios_sect > 63)
50 if (disk->bios_cyl*disk->bios_hd*disk->bios_sect != disk->chunks->size)
55 /* First try something that IDE can handle */
58 disk->bios_cyl = disk->chunks->size / (disk->bios_sect*disk->bios_hd);
61 if (disk->bios_cyl < 65536)
63 if (disk->bios_cyl < 1024)
67 /* Hmm, try harder... */
69 /* Assume standard SCSI parameter */
70 disk->bios_sect = 128;
75 disk->bios_cyl = disk->chunks->size / (disk->bios_sect*disk->bios_hd);
81 All_FreeBSD(struct disk *d, int force_all)
86 for (c = d->chunks->part; c; c = c->next)
87 if (c->type != unused) {
93 Sanitize_Bios_Geom(d);
95 Create_Chunk(d, c->offset, c->size, freebsd, 0x494,
96 CHUNK_FORCE_ALL, "FreeBSD");
98 Create_Chunk(d, c->offset, c->size, freebsd, 0xa5,
103 Create_Chunk(d, c->offset, c->size, freebsd, 0x494, 0,
106 Create_Chunk(d, c->offset, c->size, freebsd, 0xa5, 0);