xref: /netbsd/sys/arch/atari/stand/ahdilabel/privahdi.h (revision bf9ec67e)
1 /*	$NetBSD: privahdi.h,v 1.1.1.1 2000/08/07 09:23:41 leo Exp $	*/
2 
3 /*
4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Julian Coleman, Waldi Ravens and Leo Weppelman.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include <sys/param.h>
40 #include <sys/disklabel.h>
41 #include <machine/ahdilabel.h>
42 
43 /* Flags for ahdi_readlabel() */
44 #define	FORCE_AHDI	0x01	/* Read AHDI label when NetBSD label exists */
45 #define	AHDI_IGN_EXISTS	0x02	/* Ignore partition exists flag (ICD tools) */
46 #define	AHDI_IGN_EXT	0x04	/* Ignore last extended parition (HDDriver) */
47 #define	AHDI_IGN_CKSUM	0x08	/* Ignore checksum mismatch on root sector */
48 #define	AHDI_IGN_SPU	0x10	/* Ignore total sectors mismatch */
49 
50 /* Flags for ahdi_writelabel() */
51 #define AHDI_KEEP_BOOT	0x01	/* Keep boot sector */
52 #define AHDI_KEEP_BSL	0x02	/* Keep bad sector list */
53 #define AHDI_KEEP_NBDA	0x04	/* Keep NetBSD label */
54 
55 struct ptable_part {
56 	u_int8_t	flag;	/* partition flag */
57 	u_int8_t	id[3];	/* id: GEM, BGM, NBD, ... */
58 	u_int32_t	root;	/* root sector */
59 	u_int32_t	start;	/* start sector */
60 	u_int32_t	size;	/* size in sectors */
61 	int		letter;	/* partition letter */
62 };
63 
64 struct ahdi_ptable {
65 	u_int32_t		nsectors;	/* number of sectors/track */
66 	u_int32_t		ntracks;	/* number of tracks/cylinder */
67 	u_int32_t		ncylinders;	/* number of cylinders */
68 	u_int32_t		secpercyl;	/* number of sectors/cylinder */
69 	u_int32_t		secperunit;	/* number of total sectors */
70 	int			nparts;		/* number of partitions */
71 	struct ptable_part	parts[MAXPARTITIONS];
72 };
73 
74 int	 ahdi_buildlabel __P((struct ahdi_ptable *));
75 int	 ahdi_checklabel __P((struct ahdi_ptable *));
76 int	 ahdi_readlabel __P((struct ahdi_ptable *, char *, int));
77 int	 ahdi_writedisktab __P((struct ahdi_ptable *, char *, char *, char *));
78 int	 ahdi_writelabel __P((struct ahdi_ptable *, char *, int));
79 
80 extern int	ahdi_errp1, ahdi_errp2;
81 
82 /* Internal functions */
83 u_int16_t		 ahdi_cksum __P((void *));
84 void			 assign_letters __P((struct ahdi_ptable *));
85 int			 check_magic __P((int, u_int, int));
86 int			 dkcksum __P((struct disklabel *));
87 void			*disk_read __P((int, u_int, u_int));
88 int			 disk_write __P((int, u_int, u_int, void *));
89 int			 invalidate_netbsd_label __P((int, u_int32_t));
90 int			 openraw __P((const char *, int));
91 struct disklabel	*read_dl __P((int));
92 int			 read_rsec __P((int, struct ahdi_ptable *, u_int,
93 			     u_int, int));
94 int			 write_bsl __P((int));
95