dc321cad51
These are the final (?) modifications to the layout of the NetBSD/Atari bootblock. The bootblock handling can be made backwards compatible using the right config options (COMPAT_11 + DISKLABEL_AHDI).
101 lines
4.0 KiB
C
101 lines
4.0 KiB
C
/* $NetBSD: ahdilabel.h,v 1.1 1996/02/19 09:05:51 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 _MACHINE_AHDILABEL_H_
|
|
#define _MACHINE_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 an 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_st; /* 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_checksum;
|
|
};
|
|
|
|
/*
|
|
* AHDI partition table.
|
|
*/
|
|
#ifdef _KERNEL
|
|
struct ahdi_ptbl {
|
|
struct cpu_disklabel *at_cdl;
|
|
u_int at_hdsize; /* size of volume in blocks */
|
|
u_int at_nroots; /* # of auxilary root sectors */
|
|
u_int at_nparts; /* # of AHDI partitions */
|
|
struct ahdi_part at_parts[AHDI_MAXPARTS];
|
|
};
|
|
#define at_bblock at_cdl->cd_bblock
|
|
#define at_label at_cdl->cd_label
|
|
#define at_bslst at_cdl->cd_bslst
|
|
#define at_bslend at_cdl->cd_bslend
|
|
#define at_roots at_cdl->cd_roots
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _MACHINE_AHDILABEL_H_ */
|