2 * Copyright (c) 2014 Juniper Networks, Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <sys/diskpc98.h>
32 #include <sys/endian.h>
33 #include <sys/errno.h>
43 #define PC98_MAGIC 0xaa55
46 #define PC98_MAGICOFS 510
49 #define PC98_NPARTS 16
51 #ifndef PC98_PTYP_386BSD
52 #define PC98_PTYP_386BSD 0xc494
55 #define PC98_BOOTCODESZ 8192
57 static struct mkimg_alias pc98_aliases[] = {
58 { ALIAS_FREEBSD, ALIAS_INT2TYPE(PC98_PTYP_386BSD) },
63 pc98_metadata(u_int where, lba_t blk)
65 if (where == SCHEME_META_IMG_START)
66 blk += PC98_BOOTCODESZ / secsz;
67 return (round_track(blk));
71 pc98_chs(u_short *cylp, u_char *hdp, u_char *secp, lba_t lba)
75 mkimg_chs(lba, 0xffff, &cyl, &hd, &sec);
82 pc98_write(lba_t imgsz __unused, void *bootcode)
85 struct pc98_partition *dpbase, *dp;
90 buf = malloc(PC98_BOOTCODESZ);
93 if (bootcode != NULL) {
94 memcpy(buf, bootcode, PC98_BOOTCODESZ);
95 memset(buf + secsz, 0, secsz);
97 memset(buf, 0, PC98_BOOTCODESZ);
98 le16enc(buf + PC98_MAGICOFS, PC98_MAGIC);
99 dpbase = (void *)(buf + secsz);
100 STAILQ_FOREACH(part, &partlist, link) {
101 size = round_track(part->size);
102 dp = dpbase + part->index;
103 ptyp = ALIAS_TYPE2INT(part->type);
105 dp->dp_sid = ptyp >> 8;
106 pc98_chs(&dp->dp_scyl, &dp->dp_shd, &dp->dp_ssect,
108 pc98_chs(&dp->dp_scyl, &dp->dp_shd, &dp->dp_ssect,
109 part->block + size - 1);
110 if (part->label != NULL)
111 memcpy(dp->dp_name, part->label, strlen(part->label));
113 error = image_write(0, buf, PC98_BOOTCODESZ / secsz);
118 static struct mkimg_scheme pc98_scheme = {
120 .description = "PC-9800 disk partitions",
121 .aliases = pc98_aliases,
122 .metadata = pc98_metadata,
124 .bootcode = PC98_BOOTCODESZ,
126 .nparts = PC98_NPARTS,
130 SCHEME_DEFINE(pc98_scheme);