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/*  This file is part of the program psim.

    Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    */

#ifndef _TREE_H_

#define _TREE_H_

#ifndef INLINE_TREE

#define INLINE_TREE

#endif

/* Constructing the device tree:

   The initial device tree populated with devices and basic properties

   is created using the function <<device_tree_add_parsed()>>.  This

   function parses a PSIM device specification and uses it to populate

   the tree accordingly.

   This function accepts a printf style formatted string as the

   argument that describes the entry.  Any properties or interrupt

   connections added to a device tree using this function are marked

   as having a permenant disposition.  When the tree is (re)

   initialized they will be restored to their initial value.

   */

EXTERN_TREE\

(device *) tree_parse

(device *root,

 const char *fmt,

 ...) __attribute__ ((format (printf, 2, 3)));

INLINE_TREE\

(void) tree_usage

(int verbose);

INLINE_TREE\

(void) tree_print

(device *root);

INLINE_TREE\

(device_instance*) tree_instance

(device *root,

 const char *device_specifier);

/* Tree traversal::

   The entire device tree can be traversed using the

   <<device_tree_traverse()>> function.  The traversal can be in

   either pre- or postfix order.

   */

typedef void (tree_traverse_function)

     (device *device,

      void *data);

INLINE_DEVICE\

(void) tree_traverse

(device *root,

 tree_traverse_function *prefix,

 tree_traverse_function *postfix,

 void *data);

/* Tree lookup::

   The function <<tree_find_device()>> will attempt to locate

   the specified device within the tree.  If the device is not found a

   NULL device is returned.

   */

INLINE_TREE\

(device *) tree_find_device

(device *root,

 const char *path);

INLINE_TREE\

(const device_property *) tree_find_property

(device *root,

 const char *path_to_property);

INLINE_TREE\

(int) tree_find_boolean_property

(device *root,

 const char *path_to_property);

INLINE_TREE\

(signed_cell) tree_find_integer_property

(device *root,

 const char *path_to_property);

INLINE_TREE\

(device_instance *) tree_find_ihandle_property

(device *root,

 const char *path_to_property);

INLINE_TREE\

(const char *) tree_find_string_property

(device *root,

 const char *path_to_property);

/* Initializing the created tree:

   Once a device tree has been created the <<device_tree_init()>>

   function is used to initialize it.  The exact sequence of events

   that occure during initialization are described separatly.

   */

INLINE_TREE\

(void) tree_init

(device *root,

 psim *system);

#endif /* _TREE_H_ */