| 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 | {␊ |
| 36 | ␉const char *␉␉name;␊ |
| 37 | ␉uint32_t␉␉␉length;␊ |
| 38 | ␉void *␉␉␉␉value;␊ |
| 39 | ␉struct _Property *␉next;␊ |
| 40 | } Property;␊ |
| 41 | ␊ |
| 42 | ␊ |
| 43 | //==============================================================================␊ |
| 44 | ␊ |
| 45 | typedef struct _Node␊ |
| 46 | {␊ |
| 47 | ␉struct _Property *␉properties;␊ |
| 48 | ␉struct _Property *␉last_prop;␊ |
| 49 | ␉struct _Node *␉␉children;␊ |
| 50 | ␉struct _Node *␉␉next;␊ |
| 51 | } Node;␊ |
| 52 | ␊ |
| 53 | extern Property *DT__AddProperty(Node *node, const char *name, uint32_t length, void *value);␊ |
| 54 | ␊ |
| 55 | extern Node *DT__AddChild(Node *parent, const char *name);␊ |
| 56 | ␊ |
| 57 | Node *DT__FindNode(const char *path, bool createIfMissing);␊ |
| 58 | ␊ |
| 59 | extern void DT__FreeProperty(Property *prop);␊ |
| 60 | ␊ |
| 61 | extern void DT__FreeNode(Node *node);␊ |
| 62 | ␊ |
| 63 | extern char *DT__GetName(Node *node);␊ |
| 64 | ␊ |
| 65 | extern Property *DT__GetProperty(Node *node, const char *name);␊ |
| 66 | ␊ |
| 67 | void DT__Initialize(void);␊ |
| 68 | ␊ |
| 69 | // Free up memory used by in-memory representation of device tree.␊ |
| 70 | extern void DT__Finalize(void);␊ |
| 71 | ␊ |
| 72 | void DT__FlattenDeviceTree(void **result, uint32_t *length);␊ |
| 73 | ␊ |
| 74 | #endif /* __DEVICE_TREE_H */␊ |
| 75 | |
