1/*	$NetBSD: edahdi.c,v 1.3 2000/02/15 10:14:55 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
44u_int
45ahdi_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;
89done:
90	free(root);
91	return(rv);
92}
93