diff options
Diffstat (limited to 'sys/arch/amd64/stand/libsa/diskprobe.c')
| -rw-r--r-- | sys/arch/amd64/stand/libsa/diskprobe.c | 102 |
1 files changed, 95 insertions, 7 deletions
diff --git a/sys/arch/amd64/stand/libsa/diskprobe.c b/sys/arch/amd64/stand/libsa/diskprobe.c index 501fa402c9f..ddb8990b963 100644 --- a/sys/arch/amd64/stand/libsa/diskprobe.c +++ b/sys/arch/amd64/stand/libsa/diskprobe.c @@ -1,4 +1,4 @@ -/* $OpenBSD: diskprobe.c,v 1.2 2004/03/21 21:37:41 tom Exp $ */ +/* $OpenBSD: diskprobe.c,v 1.3 2004/08/21 18:53:38 tom Exp $ */ /* * Copyright (c) 1997 Tobias Weingartner @@ -13,8 +13,8 @@ * 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 + * 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 REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL @@ -53,6 +53,8 @@ struct disklist_lh disklist; struct diskinfo *bootdev_dip; extern int debug; +extern int bios_bootdev; +extern int bios_cddev; /* Probe for all BIOS floppies */ static void @@ -201,6 +203,84 @@ diskprobe(void) } +void +cdprobe(void) +{ + struct diskinfo *dip; + int cddev = bios_cddev & 0xff; + + /* Another BIOS boot device... */ + + if (bios_cddev == -1) /* Not been set, so don't use */ + return; + + dip = alloc(sizeof(struct diskinfo)); + bzero(dip, sizeof(*dip)); + +#if 0 + if (bios_getdiskinfo(cddev, &dip->bios_info)) { + printf(" <!cd0>"); /* XXX */ + free(dip, 0); + return; + } +#endif + + printf(" cd0"); + + dip->bios_info.bios_number = cddev; + dip->bios_info.bios_edd = 1; /* Use the LBA calls */ + dip->bios_info.flags |= BDI_GOODLABEL | BDI_EL_TORITO; + dip->bios_info.checksum = 0; /* just in case */ + dip->bios_info.bsd_dev = + MAKEBOOTDEV(0, 0, 0, 0xff, RAW_PART); + + /* Create an imaginary disk label */ + dip->disklabel.d_secsize = 2048; + dip->disklabel.d_ntracks = 1; + dip->disklabel.d_nsectors = 100; + dip->disklabel.d_ncylinders = 1; + dip->disklabel.d_secpercyl = dip->disklabel.d_ntracks * + dip->disklabel.d_nsectors; + if (dip->disklabel.d_secpercyl == 0) { + dip->disklabel.d_secpercyl = 100; + /* as long as it's not 0, since readdisklabel divides by it */ + } + + strncpy(dip->disklabel.d_typename, "ATAPI CD-ROM", + sizeof(dip->disklabel.d_typename)); + dip->disklabel.d_type = DTYPE_ATAPI; + + strncpy(dip->disklabel.d_packname, "fictitious", + sizeof(dip->disklabel.d_packname)); + dip->disklabel.d_secperunit = 100; + dip->disklabel.d_rpm = 300; + dip->disklabel.d_interleave = 1; + dip->disklabel.d_flags = D_REMOVABLE; + + dip->disklabel.d_bbsize = 2048; + dip->disklabel.d_sbsize = 2048; + + dip->disklabel.d_magic = DISKMAGIC; + dip->disklabel.d_magic2 = DISKMAGIC; + dip->disklabel.d_checksum = dkcksum(&dip->disklabel); + + /* 'a' partition covering the "whole" disk */ + dip->disklabel.d_partitions[0].p_offset = 0; + dip->disklabel.d_partitions[0].p_size = 100; + dip->disklabel.d_partitions[0].p_fstype = FS_UNUSED; + + /* The raw partition is special */ + dip->disklabel.d_partitions[RAW_PART].p_offset = 0; + dip->disklabel.d_partitions[RAW_PART].p_size = 100; + dip->disklabel.d_partitions[RAW_PART].p_fstype = FS_UNUSED; + + dip->disklabel.d_npartitions = RAW_PART + 1; + + /* Add to queue of disks */ + TAILQ_INSERT_TAIL(&disklist, dip, list); +} + + /* Find info on given BIOS disk */ struct diskinfo * dklookup(int dev) @@ -220,13 +300,22 @@ dump_diskinfo(void) struct diskinfo *dip; printf("Disk\tBIOS#\tType\tCyls\tHeads\tSecs\tFlags\tChecksum\n"); - for(dip = TAILQ_FIRST(&disklist); dip; dip = TAILQ_NEXT(dip, list)){ + for (dip = TAILQ_FIRST(&disklist); dip; dip = TAILQ_NEXT(dip, list)) { bios_diskinfo_t *bdi = &dip->bios_info; int d = bdi->bios_number; + int u = d & 0x7f; + char c; + + if (bdi->flags & BDI_EL_TORITO) { + c = 'c'; + u = 0; + } else { + c = (d & 0x80) ? 'h' : 'f'; + } printf("%cd%d\t0x%x\t%s\t%d\t%d\t%d\t0x%x\t0x%x\n", - (d & 0x80)?'h':'f', d & 0x7F, d, - (bdi->flags & BDI_BADLABEL)?"*none*":"label", + c, u, d, + (bdi->flags & BDI_BADLABEL)?"*none*":"label", bdi->bios_cylinders, bdi->bios_heads, bdi->bios_sectors, bdi->flags, bdi->checksum); } @@ -288,4 +377,3 @@ disksum(int blk) return (reprobe); } - |