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/* $NetBSD: ahdilbl.h,v 1.1 1996/01/16 15:15:06 leo Exp $ */
/*
* Copyright (c) 1995 Leo Weppelman.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Leo Weppelman.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* 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 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 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.
*/
#ifndef AHDILABEL_H
#define AHDILABEL_H
/***** from src/sys/arch/atari/include/disklabel.h *************************/
/*
* On a volume, exclusively used by NetBSD, the boot block starts at
* sector 0. To allow shared use of a volume between two or more OS's
* the vendor specific AHDI format is supported. In this case the boot
* block is located at the start of an AHDI partition. In any case the
* size of the boot block must be at least 8KB.
*/
#define BBMINSIZE 8192 /* minimum size of boot block */
#define LABELSECTOR 0 /* `natural' start of boot block */
#define LABELOFFSET 512 /* offset of disk label in bytes,
relative to start of boot block */
#define LABELMAXSIZE 1024 /* maximum size of disk label */
#define MAXPARTITIONS 16 /* max. # of NetBSD partitions */
#define RAW_PART 2 /* xx?c is raw partition */
#define NO_BOOT_BLOCK ((u_int)-1)
#define MAXAUXROOTS 29 /* max. # of auxilary root sectors */
struct bootblock {
u_int8_t bb_xxboot[LABELOFFSET]; /* first-stage boot loader */
u_int8_t bb_dlabel[LABELMAXSIZE];/* disk pack label */
u_int8_t bb_bootxx[BBMINSIZE - (LABELOFFSET + LABELMAXSIZE)];
/* second-stage boot loader*/
};
#define BBGETLABEL(bb, dl) *(dl) = *((struct disklabel *)(bb)->bb_dlabel)
#define BBSETLABEL(bb, dl) *((struct disklabel *)(bb)->bb_dlabel) = *(dl)
/***** from src/sys/arch/atari/include/ahdilabel.h *************************/
#define AHDI_BSIZE 512 /* AHDI blocksize */
#define AHDI_BBLOCK 0 /* AHDI bootblock (root sector) */
#define AHDI_MAXROOTS (MAXAUXROOTS) /* max. # of AHDI rootsectors */
#define AHDI_MAXPARTS (AHDI_MAXROOTS+3) /* max. # of AHDI partitions */
/*
* Various `well known' AHDI partition identifiers.
*/
#define AHDI_MKPID(x,y,z) ( ((u_int32_t)(x) << 16) \
| ((u_int32_t)(y) << 8) \
| ((u_int32_t)(z)) \
)
#define AHDI_PID_XGM AHDI_MKPID('X','G','M')
#define AHDI_PID_GEM AHDI_MKPID('G','E','M')
#define AHDI_PID_BGM AHDI_MKPID('B','G','M')
#define AHDI_PID_RAW AHDI_MKPID('R','A','W')
#define AHDI_PID_SWP AHDI_MKPID('S','W','P')
#define AHDI_PID_NBD AHDI_MKPID('N','B','D')
#define AHDI_PID_NBR AHDI_MKPID('N','B','R')
#define AHDI_PID_NBS AHDI_MKPID('N','B','S')
#define AHDI_PID_NBU AHDI_MKPID('N','B','U')
/*
* Format of AHDI boot block.
*/
#define AHDI_MAXRPD 4 /* max. # of partition descriptors */
/* in the AHDI bootblock (aka root)*/
#define AHDI_MAXARPD 2 /* max. # of partition descriptors */
/* in an AHDI auxilary root sector */
struct ahdi_part {
u_int8_t ap_flg; /* bit 0 is in-use flag */
u_int8_t ap_id[3]; /* id: GEM, BGM, XGM, UNX, MIX */
u_int32_t ap_offs; /* block where partition starts */
u_int32_t ap_size; /* partition size in blocks */
#define ap_end ap_size /* in the in-core copy, store end instead of size */
};
struct ahdi_root {
u_int8_t ar_fill[0x1c2];/* filler, can be boot code */
u_int32_t ar_hdsize; /* size of entire volume in blocks */
struct ahdi_part ar_parts[AHDI_MAXRPD]; /* root partition table */
u_int32_t ar_bslst; /* start of bad-sector list */
u_int32_t ar_bslsize; /* # of blocks in bad-sector list */
u_int16_t ar_cksum;
};
#endif /* AHDILABEL_H */
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