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  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 BOOT_OFW_TREE_H_
  30. #define BOOT_OFW_TREE_H_
  31.  
  32. #include <types.h>
  33. #include <ofw.h>
  34.  
  35. #define OFW_TREE_PROPERTY_MAX_NAMELEN   32
  36.  
  37. typedef struct ofw_tree_node ofw_tree_node_t;
  38. typedef struct ofw_tree_property ofw_tree_property_t;
  39.  
  40. /** Memory representation of OpenFirmware device tree node. */
  41. struct ofw_tree_node {
  42.     ofw_tree_node_t *parent;
  43.     ofw_tree_node_t *peer;
  44.     ofw_tree_node_t *child;
  45.  
  46.     uint32_t node_handle;           /**< Old OpenFirmware node handle. */
  47.  
  48.     char *da_name;              /**< Disambigued name. */
  49.  
  50.     unsigned properties;            /**< Number of properties. */
  51.     ofw_tree_property_t *property;
  52.    
  53.     void *device;               /**< Member used solely by the kernel. */
  54. };
  55.  
  56. /** Memory representation of OpenFirmware device tree node property. */
  57. struct ofw_tree_property {
  58.     char name[OFW_TREE_PROPERTY_MAX_NAMELEN];
  59.     size_t size;
  60.     void *value;
  61. };
  62.  
  63. extern ofw_tree_node_t *ofw_tree_build(void);
  64.  
  65. #endif
  66.