1/*	$NetBSD: mdesc.h,v 1.5 2016/06/22 20:13:00 palle Exp $	*/
2/*	$OpenBSD: mdesc.h,v 1.3 2014/11/30 22:26:14 kettenis Exp $	*/
3/*
4 * Copyright (c) 2009 Mark Kettenis
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef	_MDESC_H_
20#define _MDESC_H_
21
22struct md_header {
23	uint32_t	transport_version;
24	uint32_t	node_blk_sz;
25	uint32_t	name_blk_sz;
26	uint32_t	data_blk_sz;
27};
28
29struct md_element {
30	uint8_t		tag;
31	uint8_t		name_len;
32	uint16_t	_reserved_field;
33	uint32_t	name_offset;
34	union {
35		struct {
36			uint32_t	data_len;
37			uint32_t	data_offset;
38		} y;
39		uint64_t	val;
40	} d;
41};
42
43extern vaddr_t mdesc;
44
45#ifdef _KERNEL
46psize_t	mdesc_get_len(void);
47void	mdesc_init(vaddr_t, paddr_t, psize_t);
48uint64_t mdesc_get_prop_val(int, const char *);
49const char *mdesc_get_prop_str(int, const char *);
50const char *mdesc_get_prop_data(int, const char *, size_t *);
51int	mdesc_find(const char *, uint64_t);
52int	mdesc_find_child(int, const char *, uint64_t);
53int	mdesc_find_node(const char *);
54int	mdesc_find_node_by_idx(int, const char *);
55int	mdesc_next_node(int);
56const char *mdesc_name_by_idx(int);
57#endif
58
59#endif /* _MDESC_H_ */
60