1 | /*␊ |
2 | * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
8 | * Original Code as defined in and that are subject to the Apple Public␊ |
9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
10 | * except in compliance with the License. Please obtain a copy of the␊ |
11 | * License at http://www.apple.com/publicsource and read it before using␊ |
12 | * this file.␊ |
13 | * ␊ |
14 | * The Original Code and all software distributed under the License are␊ |
15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
19 | * License for the specific language governing rights and limitations␊ |
20 | * under the License.␊ |
21 | * ␊ |
22 | * @APPLE_LICENSE_HEADER_END@␊ |
23 | */␊ |
24 | ␊ |
25 | #ifndef __DEVICE_TREE_H␊ |
26 | #define __DEVICE_TREE_H␊ |
27 | ␊ |
28 | #include <stdbool.h>␊ |
29 | #include <stdint.h>␊ |
30 | ␊ |
31 | ␊ |
32 | //==============================================================================␊ |
33 | ␊ |
34 | typedef struct _Property {␊ |
35 | ␉const char *␉␉name;␊ |
36 | ␉uint32_t␉␉␉length;␊ |
37 | ␉void *␉␉␉␉value;␊ |
38 | ␉struct _Property *␉next;␊ |
39 | } Property;␊ |
40 | ␊ |
41 | ␊ |
42 | //==============================================================================␊ |
43 | ␊ |
44 | typedef struct _Node {␊ |
45 | ␉struct _Property *␉properties;␊ |
46 | ␉struct _Property *␉last_prop;␊ |
47 | ␉struct _Node *␉␉children;␊ |
48 | ␉struct _Node *␉␉next;␊ |
49 | } Node;␊ |
50 | ␊ |
51 | ␊ |
52 | extern Property *␊ |
53 | DT__AddProperty(Node *node, const char *name, uint32_t length, void *value);␊ |
54 | ␊ |
55 | extern Node *␊ |
56 | DT__AddChild(Node *parent, const char *name);␊ |
57 | ␊ |
58 | Node *␊ |
59 | DT__FindNode(const char *path, bool createIfMissing);␊ |
60 | ␊ |
61 | extern void␊ |
62 | DT__FreeProperty(Property *prop);␊ |
63 | ␊ |
64 | extern void␊ |
65 | DT__FreeNode(Node *node);␊ |
66 | ␊ |
67 | extern char *␊ |
68 | DT__GetName(Node *node);␊ |
69 | ␊ |
70 | extern Property *␊ |
71 | DT__GetProperty(Node *node, const char *name);␊ |
72 | ␊ |
73 | void␊ |
74 | DT__Initialize(void);␊ |
75 | ␊ |
76 | ␊ |
77 | // Free up memory used by in-memory representation of device tree.␊ |
78 | ␊ |
79 | extern void␊ |
80 | DT__Finalize(void);␊ |
81 | ␊ |
82 | void␊ |
83 | DT__FlattenDeviceTree(void **result, uint32_t *length);␊ |
84 | ␊ |
85 | ␊ |
86 | #endif /* __DEVICE_TREE_H */␊ |
87 | |