2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@FreeBSD.org> 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 * ----------------------------------------------------------------------------
10 #include <sys/cdefs.h>
11 __FBSDID("$FreeBSD$");
18 #include <sys/types.h>
22 Set_Bios_Geom(struct disk *disk, u_long cyl, u_long hd, u_long sect)
27 disk->bios_sect = sect;
31 Sanitize_Bios_Geom(struct disk *disk)
38 if (disk->bios_cyl >= 65536)
40 if (disk->bios_cyl > 1024)
44 if (disk->bios_hd >= 256)
46 if (disk->bios_hd > 16)
50 if (disk->bios_sect >= 256)
52 if (disk->bios_sect > 63)
55 if (disk->bios_cyl * disk->bios_hd * disk->bios_sect !=
61 /* First try something that IDE can handle */
64 disk->bios_cyl = disk->chunks->size /
65 (disk->bios_sect * disk->bios_hd);
68 if (disk->bios_cyl < 65536)
70 if (disk->bios_cyl < 1024)
74 /* Hmm, try harder... */
75 /* Assume standard SCSI parameter */
77 disk->bios_sect = 128;
82 disk->bios_cyl = disk->chunks->size /
83 (disk->bios_sect * disk->bios_hd);
86 if (disk->bios_cyl < 65536)
89 /* Assume UIDE-133/98-A Challenger BIOS 0.9821C parameter */
90 disk->bios_sect = 255;
92 disk->bios_cyl = disk->chunks->size /
93 (disk->bios_sect * disk->bios_hd);
95 if (disk->bios_cyl < 65536)
100 disk->bios_cyl = disk->chunks->size /
101 (disk->bios_sect * disk->bios_hd);
106 All_FreeBSD(struct disk *d, int force_all)
118 for (c = d->chunks->part; c; c = c->next)
119 if (c->type != unused) {
125 Sanitize_Bios_Geom(d);
126 Create_Chunk(d, c->offset, c->size, freebsd, type,
127 CHUNK_FORCE_ALL, "FreeBSD");
129 Create_Chunk(d, c->offset, c->size, freebsd, type, 0,