1 /*-
2 * Copyright (c) 2003 TAKAHASHI Yoshihiro
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: src/sys/geom/geom_pc98_enc.c,v 1.3 2005/05/01 09:44:50 nyan Exp $");
29
30 #include <sys/types.h>
31 #include <sys/diskpc98.h>
32 #include <sys/endian.h>
33
34 void
35 pc98_partition_dec(void const *pp, struct pc98_partition *d)
36 {
37 unsigned char const *ptr = pp;
38 u_int i;
39
40 d->dp_mid = ptr[0];
41 d->dp_sid = ptr[1];
42 d->dp_dum1 = ptr[2];
43 d->dp_dum2 = ptr[3];
44 d->dp_ipl_sct = ptr[4];
45 d->dp_ipl_head = ptr[5];
46 d->dp_ipl_cyl = le16dec(ptr + 6);
47 d->dp_ssect = ptr[8];
48 d->dp_shd = ptr[9];
49 d->dp_scyl = le16dec(ptr + 10);
50 d->dp_esect = ptr[12];
51 d->dp_ehd = ptr[13];
52 d->dp_ecyl = le16dec(ptr + 14);
53 for (i = 0; i < sizeof (d->dp_name); i++)
54 d->dp_name[i] = ptr[16 + i];
55 }
56
57 void
58 pc98_partition_enc(void *pp, struct pc98_partition *d)
59 {
60 unsigned char *ptr = pp;
61 u_int i;
62
63 ptr[0] = d->dp_mid;
64 ptr[1] = d->dp_sid;
65 ptr[2] = d->dp_dum1;
66 ptr[3] = d->dp_dum2;
67 ptr[4] = d->dp_ipl_sct;
68 ptr[5] = d->dp_ipl_head;
69 le16enc(ptr + 6, d->dp_ipl_cyl);
70 ptr[8] = d->dp_ssect;
71 ptr[9] = d->dp_shd;
72 le16enc(ptr + 10, d->dp_scyl);
73 ptr[12] = d->dp_esect;
74 ptr[13] = d->dp_ehd;
75 le16enc(ptr + 14, d->dp_ecyl);
76 for (i = 0; i < sizeof (d->dp_name); i++)
77 ptr[16 + i] = d->dp_name[i];
78 }
79
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