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
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/errno.h>
36 #include <sys/diskpc98.h>
44 #define PC98_MAGIC 0xaa55
47 #define PC98_MAGICOFS 510
50 #define PC98_NPARTS 16
52 #ifndef PC98_PTYP_386BSD
53 #define PC98_PTYP_386BSD 0xc494
56 #define PC98_BOOTCODESZ 8192
58 static struct mkimg_alias pc98_aliases[] = {
59 { ALIAS_FREEBSD, ALIAS_INT2TYPE(PC98_PTYP_386BSD) },
64 pc98_metadata(u_int where, lba_t blk)
66 if (where == SCHEME_META_IMG_START)
67 blk += PC98_BOOTCODESZ / secsz;
68 return (round_track(blk));
72 pc98_chs(u_short *cylp, u_char *hdp, u_char *secp, lba_t lba)
76 mkimg_chs(lba, 0xffff, &cyl, &hd, &sec);
83 pc98_write(lba_t imgsz __unused, void *bootcode)
86 struct pc98_partition *dpbase, *dp;
91 buf = malloc(PC98_BOOTCODESZ);
94 if (bootcode != NULL) {
95 memcpy(buf, bootcode, PC98_BOOTCODESZ);
96 memset(buf + secsz, 0, secsz);
98 memset(buf, 0, PC98_BOOTCODESZ);
99 le16enc(buf + PC98_MAGICOFS, PC98_MAGIC);
100 dpbase = (void *)(buf + secsz);
101 TAILQ_FOREACH(part, &partlist, link) {
102 size = round_track(part->size);
103 dp = dpbase + part->index;
104 ptyp = ALIAS_TYPE2INT(part->type);
106 dp->dp_sid = ptyp >> 8;
107 pc98_chs(&dp->dp_scyl, &dp->dp_shd, &dp->dp_ssect,
109 pc98_chs(&dp->dp_scyl, &dp->dp_shd, &dp->dp_ssect,
110 part->block + size - 1);
111 if (part->label != NULL)
112 memcpy(dp->dp_name, part->label, strlen(part->label));
114 error = image_write(0, buf, PC98_BOOTCODESZ / secsz);
119 static struct mkimg_scheme pc98_scheme = {
121 .description = "PC-9800 disk partitions",
122 .aliases = pc98_aliases,
123 .metadata = pc98_metadata,
125 .bootcode = PC98_BOOTCODESZ,
127 .nparts = PC98_NPARTS,
131 SCHEME_DEFINE(pc98_scheme);