RTEMS: bsps/sparc64/include/genarch/ofw/ofw_tree.h Source File

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ofw_tree.h
1/*
2 * Copyright (c) 2006 Jakub Jermar
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 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef KERN_OFW_TREE_H_
30#define KERN_OFW_TREE_H_
31
32#include <arch/types.h>
33#include <typedefs.h>
34
35#define OFW_TREE_PROPERTY_MAX_NAMELEN 32
36
38typedef struct {
39 char name[OFW_TREE_PROPERTY_MAX_NAMELEN];
40 size_t size;
41 void *value;
42} ofw_tree_property_t;
43
45typedef struct ofw_tree_node {
46 struct ofw_tree_node *parent;
47 struct ofw_tree_node *peer;
48 struct ofw_tree_node *child;
49
50 uint32_t node_handle;
52 char *da_name;
54 unsigned int properties;
55 ofw_tree_property_t *property;
56
61 void *device;
62} ofw_tree_node_t;
63
64/* Walker for visiting OpenFirmware device tree nodes. */
65typedef bool (* ofw_tree_walker_t)(ofw_tree_node_t *, void *);
66
67extern void ofw_tree_init(ofw_tree_node_t *);
68extern void ofw_tree_print(void);
69
70extern const char *ofw_tree_node_name(const ofw_tree_node_t *);
71extern ofw_tree_node_t *ofw_tree_lookup(const char *);
72extern ofw_tree_property_t *ofw_tree_getprop(const ofw_tree_node_t *,
73 const char *);
74extern void ofw_tree_walk_by_device_type(const char *, ofw_tree_walker_t,
75 void *);
76
77extern ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *, const char *);
78extern ofw_tree_node_t *ofw_tree_find_child_by_device_type(ofw_tree_node_t *,
79 const char *);
80
81extern ofw_tree_node_t *ofw_tree_find_peer_by_device_type(ofw_tree_node_t *,
82 const char *);
83extern ofw_tree_node_t *ofw_tree_find_peer_by_name(ofw_tree_node_t *,
84 const char *);
85extern ofw_tree_node_t *ofw_tree_find_node_by_handle(ofw_tree_node_t *,
86 uint32_t);
87
88#endif
ofw_tree_node
Definition: ofw_tree.h:44
ofw_tree_node::node_handle
uint32_t node_handle
Definition: ofw_tree.h:49
ofw_tree_node::da_name
char * da_name
Definition: ofw_tree.h:51
ofw_tree_node::properties
unsigned int properties
Definition: ofw_tree.h:53
ofw_tree_node::device
void * device
Definition: ofw_tree.h:56
ofw_tree_property_t
Definition: ofw_tree.h:37