1/* $NetBSD: disklabel_acorn.h,v 1.7 2022/05/24 19:37:39 andvar Exp $ */
2
3/*
4 * Copyright (c) 1994 Mark Brinicombe.
5 * Copyright (c) 1994 Brini.
6 * All rights reserved.
7 *
8 * This code is derived from software written for Brini by Mark Brinicombe
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 Brini.
21 * 4. The name of the company nor the name of the author may be used to
22 * endorse or promote products derived from this software without specific
23 * prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38#ifndef _SYS_DISKLABEL_ACORN_H_
39#define _SYS_DISKLABEL_ACORN_H_
40
41#define PARTITION_TYPE_UNUSED 0
42#define PARTITION_TYPE_ADFS 1
43#define PARTITION_TYPE_RISCIX 2
44
45#define PARTITION_FORMAT_RISCIX 2
46#define PARTITION_FORMAT_RISCBSD 0x42
47
48#define FILECORE_BOOT_SECTOR 6
49
50/* Stuff to deal with RISCiX partitions */
51
52#define NRISCIX_PARTITIONS 8
53#define RISCIX_PARTITION_OFFSET 8
54
55struct riscix_partition {
56 uint32_t rp_start;
57 uint32_t rp_length;
58 uint32_t rp_type;
59 int8_t rp_name[16];
60};
61
62struct riscix_partition_table {
63 uint32_t pad0;
64 uint32_t pad1;
65 struct riscix_partition partitions[NRISCIX_PARTITIONS];
66};
67
68struct filecore_bootblock {
69 uint8_t padding0[0x1c0];
70 uint8_t log2secsize;
71 uint8_t secspertrack;
72 uint8_t heads;
73 uint8_t density;
74 uint8_t idlen;
75 uint8_t log2bpmb;
76 uint8_t skew;
77 uint8_t bootoption;
78 uint8_t lowsector;
79 uint8_t nzones;
80 uint16_t zone_spare;
81 uint32_t root;
82 uint32_t disc_size;
83 uint16_t disc_id;
84 uint8_t disc_name[10];
85 uint32_t disc_type;
86
87 uint8_t padding1[24];
88
89 uint8_t partition_type;
90 uint8_t partition_cyl_low;
91 uint8_t partition_cyl_high;
92 uint8_t checksum;
93};
94
95#if defined(_KERNEL) && !defined(__ASSEMBLER__)
96struct buf;
97struct cpu_disklabel;
98struct disklabel;
99
100/* for readdisklabel. rv != 0 -> matches, msg == NULL -> success */
101int filecore_label_read(dev_t, void (*)(struct buf *),
102 struct disklabel *, struct cpu_disklabel *, const char **, int *,
103 int *);
104
105/* for writedisklabel. rv == 0 -> doesn't match, rv > 0 -> success */
106int filecore_label_locate(dev_t, void (*)(struct buf *),
107 struct disklabel *, struct cpu_disklabel *, int *, int *);
108#endif
109#endif /* _SYS_DISKLABEL_ACORN_H_ */