1 /* $NetBSD: ahdi.c,v 1.1 2002/02/24 20:51:07 leo Exp $ */
2
3 /*
4 * Copyright (c) 1996 Leo Weppelman, Waldi Ravens.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by
18 * Leo Weppelman and Waldi Ravens.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/types.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <ctype.h>
38 #include <stdio.h>
39 #include <xhdi.h>
40 #include "libtos.h"
41 #include "diskio.h"
42 #include "ahdilbl.h"
43
44 u_int
ahdi_getparts(dd,ptable,rsec,esec)45 ahdi_getparts(dd, ptable, rsec, esec)
46 disk_t *dd;
47 ptable_t *ptable;
48 u_int rsec,
49 esec;
50 {
51 struct ahdi_part *part, *end;
52 struct ahdi_root *root;
53 u_int rv;
54
55 root = disk_read(dd, rsec, 1);
56 if (!root) {
57 rv = rsec + (rsec == 0);
58 goto done;
59 }
60
61 if (rsec == AHDI_BBLOCK)
62 end = &root->ar_parts[AHDI_MAXRPD];
63 else end = &root->ar_parts[AHDI_MAXARPD];
64 for (part = root->ar_parts; part < end; ++part) {
65 u_int id = *((u_int32_t *)&part->ap_flg);
66 if (!(id & 0x01000000))
67 continue;
68 if ((id &= 0x00ffffff) == AHDI_PID_XGM) {
69 u_int offs = part->ap_st + esec;
70 rv = ahdi_getparts(dd, ptable, offs,
71 esec == AHDI_BBLOCK ? offs : esec);
72 if (rv)
73 goto done;
74 } else {
75 part_t *p;
76 u_int i = ++ptable->nparts;
77 ptable->parts = xrealloc(ptable->parts,
78 i * sizeof *ptable->parts);
79 p = &ptable->parts[--i];
80 *((u_int32_t *)&p->id) = id << 8;
81 p->start = part->ap_st + rsec;
82 p->end = p->start + part->ap_size - 1;
83 p->rsec = rsec;
84 p->rent = part - root->ar_parts;
85 p->mod = 0;
86 }
87 }
88 rv = 0;
89 done:
90 free(root);
91 return(rv);
92 }
93