source: mainline/boot/genarch/ofw_tree.h@ 771cd22

/*
 * Copyright (C) 2006 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef BOOT_OFW_TREE_H_
#define BOOT_OFW_TREE_H_

#include <types.h>
#include <ofw.h>

#define OFW_TREE_PROPERTY_MAX_NAMELEN   32

typedef struct ofw_tree_node ofw_tree_node_t;
typedef struct ofw_tree_property ofw_tree_property_t;

/** Memory representation of OpenFirmware device tree node. */
struct ofw_tree_node {
        ofw_tree_node_t *parent;
        ofw_tree_node_t *peer;
        ofw_tree_node_t *child;

        uint32_t node_handle;                   /**< Old OpenFirmware node handle. */

        char *da_name;                          /**< Disambigued name. */

        unsigned properties;                    /**< Number of properties. */
        ofw_tree_property_t *property;
        
        void *device;                           /**< Member used solely by the kernel. */
};

/** Memory representation of OpenFirmware device tree node property. */
struct ofw_tree_property {
        char name[OFW_TREE_PROPERTY_MAX_NAMELEN];
        size_t size;
        void *value;
};

extern ofw_tree_node_t *ofw_tree_build(void);

#endif