summaryrefslogtreecommitdiff
path: root/sys/arch/hppa/include/disklabel.h
blob: d6df714beb06771c70f6e44920cf16a85111f005 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
/*	$OpenBSD: disklabel.h,v 1.14 2006/10/17 23:42:37 krw Exp $	*/
/*	$NetBSD: disklabel.h,v 1.1 1995/02/13 23:07:34 cgd Exp $	*/

/*
 * Copyright (c) 1994 Christopher G. Demetriou
 * 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 Christopher G. Demetriou.
 * 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_DISKLABEL_H_
#define _MACHINE_DISKLABEL_H_

#define	HPPA_LABELSECTOR	1		/* sector containing label */
#define	HPPA_LABELOFFSET	0		/* offset of label in sector */
#define	I386_LABELSECTOR	1		/* sector containing label */
#define	I386_LABELOFFSET	0		/* offset of label in sector */

#define LABELSECTOR		HPPA_LABELSECTOR
#define LABELOFFSET		HPPA_LABELOFFSET

#define	MAXPARTITIONS		16		/* number of partitions */
#define	RAW_PART		2		/* raw partition: xx?c */

/* DOS partition table -- located in boot block */
#define	DOSBBSECTOR	0		/* DOS boot block relative sector # */
#define	DOSPARTOFF	446
#define DOSACTIVE	0x80
#define	NDOSPART	4
#define DOSMBR_SIGNATURE 0xaa55
#define DOSMBR_SIGNATURE_OFF 0x1fe

struct dos_partition {
	u_int8_t	dp_flag;	/* bootstrap flags */
	u_int8_t	dp_shd;		/* starting head */
	u_int8_t	dp_ssect;	/* starting sector */
	u_int8_t	dp_scyl;	/* starting cylinder */
	u_int8_t	dp_typ;		/* partition type (see below) */
	u_int8_t	dp_ehd;		/* end head */
	u_int8_t	dp_esect;	/* end sector */
	u_int8_t	dp_ecyl;	/* end cylinder */
	u_int32_t	dp_start;	/* absolute starting sector number */
	u_int32_t	dp_size;	/* partition size in sectors */
};

/* Known DOS partition types. */
#define	DOSPTYP_UNUSED	0x00		/* Unused partition */
#define DOSPTYP_FAT12	0x01		/* 12-bit FAT */
#define DOSPTYP_FAT16S	0x04		/* 16-bit FAT, less than 32M */
#define DOSPTYP_EXTEND	0x05		/* Extended; contains sub-partitions */
#define DOSPTYP_FAT16B	0x06		/* 16-bit FAT, more than 32M */
#define DOSPTYP_FAT32	0x0b		/* 32-bit FAT */
#define DOSPTYP_FAT32L	0x0c		/* 32-bit FAT, LBA-mapped */
#define DOSPTYP_FAT16L	0x0e		/* 16-bit FAT, LBA-mapped */
#define DOSPTYP_EXTENDL 0x0f		/* Extended, LBA-mapped; contains sub-partitions */
#define DOSPTYP_ONTRACK	0x54
#define	DOSPTYP_LINUX	0x83		/* That other thing */
#define DOSPTYP_FREEBSD	0xa5		/* FreeBSD partition type */
#define DOSPTYP_OPENBSD	0xa6		/* OpenBSD partition type */
#define DOSPTYP_NETBSD	0xa9		/* NetBSD partition type */

/* Isolate the relevant bits to get sector and cylinder. */
#define	DPSECT(s)	((s) & 0x3f)
#define	DPCYL(c, s)	((c) + (((s) & 0xc0) << 2))

/*
 * volume header for "LIF" format volumes
 */
struct	lifvol {
	short	vol_id;
	char	vol_label[6];
	u_int	vol_addr;
	short	vol_oct;
	short	vol_dummy;
	u_int	vol_dirsize;
	short	vol_version;
	short	vol_zero;
	u_int	vol_number;
	u_int	vol_lastvol;
	u_int	vol_length;
	char	vol_toc[6];
	char	vol_dummy1[198];

	u_int	ipl_addr;
	u_int	ipl_size;
	u_int	ipl_entry;

	u_int	vol_dummy2;
};

struct	lifdir {
	char	dir_name[10];
	u_short	dir_type;
	u_int	dir_addr;
	u_int	dir_length;
	char	dir_toc[6];
	short	dir_flag;
	u_int	dir_implement;
};

struct lif_load {
	int address;
	int count;
};

#define	HPUX_MAGIC	0x8b7f6a3c
#define	HPUX_MAXPART	16
struct hpux_label {
	int32_t		hl_magic1;
	u_int32_t	hl_magic;
	int32_t		hl_version;
	struct {
		int32_t	hlp_blah[2];
		int32_t	hlp_start;
		int32_t	hlp_length;
	}		hl_parts[HPUX_MAXPART];
	u_int8_t	hl_flags[HPUX_MAXPART];
#define	HPUX_PART_ROOT	0x10
#define	HPUX_PART_SWAP	0x14
#define	HPUX_PART_BOOT	0x32
	int32_t		hl_blah[3*16];
	u_int16_t	hl_boot;
	u_int16_t	hl_reserved;
	int32_t		hl_magic2;
};

#define LIF_VOL_ID	-32768
#define LIF_VOL_OCT	4096
#define LIF_DIR_SWAP	0x5243
#define LIF_DIR_HPLBL	0xa271
#define	LIF_DIR_FS	0xcd38
#define	LIF_DIR_IOMAP	0xcd60
#define	LIF_DIR_HPUX	0xcd80
#define	LIF_DIR_ISL	0xce00
#define	LIF_DIR_PAD	0xcffe
#define	LIF_DIR_AUTO	0xcfff
#define	LIF_DIR_EST	0xd001
#define	LIF_DIR_TYPE	0xe942

#define LIF_DIR_FLAG	0x8001	/* dont ask me! */
#define	LIF_SECTSIZE	256

#define LIF_NUMDIR	16

#define LIF_VOLSTART	0
#define LIF_VOLSIZE	sizeof(struct lifvol)
#define LIF_DIRSTART	2048
#define LIF_DIRSIZE	(LIF_NUMDIR * sizeof(struct lifdir))
#define LIF_FILESTART	8192

#define	btolifs(b)	(((b) + (LIF_SECTSIZE - 1)) / LIF_SECTSIZE)
#define	lifstob(s)	((s) * LIF_SECTSIZE) 
#define	lifstodb(s)	((s) * LIF_SECTSIZE / DEV_BSIZE)

struct cpu_disklabel {
	int labelsector;
	union {
		struct {
			struct lifvol lifvol;
			struct lifdir lifdir[LIF_NUMDIR];
			struct hpux_label hplabel;
		} _hppa;
	} u;
};

#endif /* _MACHINE_DISKLABEL_H_ */