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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_ */
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