| 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 <typedefs.h>
|
|---|
| 33 |
|
|---|
| 34 | #define OFW_TREE_PROPERTY_MAX_NAMELEN 32
|
|---|
| 35 |
|
|---|
| 36 | /** Memory representation of OpenFirmware device tree node property. */
|
|---|
| 37 | typedef struct {
|
|---|
| 38 | char name[OFW_TREE_PROPERTY_MAX_NAMELEN];
|
|---|
| 39 | size_t size;
|
|---|
| 40 | void *value;
|
|---|
| 41 | } ofw_tree_property_t;
|
|---|
| 42 |
|
|---|
| 43 | /** Memory representation of OpenFirmware device tree node. */
|
|---|
| 44 | typedef struct ofw_tree_node {
|
|---|
| 45 | struct ofw_tree_node *parent;
|
|---|
| 46 | struct ofw_tree_node *peer;
|
|---|
| 47 | struct ofw_tree_node *child;
|
|---|
| 48 |
|
|---|
| 49 | uint32_t node_handle; /**< Old OpenFirmware node handle. */
|
|---|
| 50 |
|
|---|
| 51 | char *da_name; /**< Disambigued name. */
|
|---|
| 52 |
|
|---|
| 53 | unsigned int properties; /**< Number of properties. */
|
|---|
| 54 | ofw_tree_property_t *property;
|
|---|
| 55 |
|
|---|
| 56 | /**
|
|---|
| 57 | * Pointer to a structure representing respective device.
|
|---|
| 58 | * Its semantics is device dependent.
|
|---|
| 59 | */
|
|---|
| 60 | void *device;
|
|---|
| 61 | } ofw_tree_node_t;
|
|---|
| 62 |
|
|---|
| 63 | /* Walker for visiting OpenFirmware device tree nodes. */
|
|---|
| 64 | typedef bool (* ofw_tree_walker_t)(ofw_tree_node_t *, void *);
|
|---|
| 65 |
|
|---|
| 66 | extern void ofw_tree_init(ofw_tree_node_t *);
|
|---|
| 67 | extern void ofw_tree_print(void);
|
|---|
| 68 |
|
|---|
| 69 | extern const char *ofw_tree_node_name(const ofw_tree_node_t *);
|
|---|
| 70 | extern ofw_tree_node_t *ofw_tree_lookup(const char *);
|
|---|
| 71 | extern ofw_tree_property_t *ofw_tree_getprop(const ofw_tree_node_t *,
|
|---|
| 72 | const char *);
|
|---|
| 73 | extern void ofw_tree_walk_by_device_type(const char *, ofw_tree_walker_t,
|
|---|
| 74 | void *);
|
|---|
| 75 |
|
|---|
| 76 | extern ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *, const char *);
|
|---|
| 77 | extern ofw_tree_node_t *ofw_tree_find_child_by_device_type(ofw_tree_node_t *,
|
|---|
| 78 | const char *);
|
|---|
| 79 |
|
|---|
| 80 | extern ofw_tree_node_t *ofw_tree_find_peer_by_device_type(ofw_tree_node_t *,
|
|---|
| 81 | const char *);
|
|---|
| 82 | extern ofw_tree_node_t *ofw_tree_find_peer_by_name(ofw_tree_node_t *,
|
|---|
| 83 | const char *);
|
|---|
| 84 | extern ofw_tree_node_t *ofw_tree_find_node_by_handle(ofw_tree_node_t *,
|
|---|
| 85 | uint32_t);
|
|---|
| 86 |
|
|---|
| 87 | #endif
|
|---|
