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143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TREE_H_
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#define _TREE_H_
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#ifndef INLINE_TREE
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#define INLINE_TREE
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#endif
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/* Constructing the device tree:
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The initial device tree populated with devices and basic properties
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is created using the function <<device_tree_add_parsed()>>. This
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function parses a PSIM device specification and uses it to populate
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the tree accordingly.
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This function accepts a printf style formatted string as the
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argument that describes the entry. Any properties or interrupt
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connections added to a device tree using this function are marked
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as having a permenant disposition. When the tree is (re)
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initialized they will be restored to their initial value.
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*/
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EXTERN_TREE\
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(char*) tree_quote_property
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(const char *property_value);
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EXTERN_TREE\
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(device *) tree_parse
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(device *root,
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const char *fmt,
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...) __attribute__ ((format (printf, 2, 3)));
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INLINE_TREE\
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(void) tree_usage
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(int verbose);
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INLINE_TREE\
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(void) tree_print
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(device *root);
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INLINE_TREE\
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(device_instance*) tree_instance
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(device *root,
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const char *device_specifier);
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/* Tree traversal::
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The entire device tree can be traversed using the
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<<device_tree_traverse()>> function. The traversal can be in
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either pre- or postfix order.
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*/
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typedef void (tree_traverse_function)
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(device *device,
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void *data);
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INLINE_DEVICE\
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(void) tree_traverse
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(device *root,
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tree_traverse_function *prefix,
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tree_traverse_function *postfix,
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void *data);
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/* Tree lookup::
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The function <<tree_find_device()>> will attempt to locate
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the specified device within the tree. If the device is not found a
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NULL device is returned.
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*/
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INLINE_TREE\
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(device *) tree_find_device
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(device *root,
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const char *path);
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INLINE_TREE\
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(const device_property *) tree_find_property
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(device *root,
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const char *path_to_property);
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INLINE_TREE\
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(int) tree_find_boolean_property
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(device *root,
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const char *path_to_property);
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INLINE_TREE\
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(signed_cell) tree_find_integer_property
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(device *root,
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const char *path_to_property);
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INLINE_TREE\
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(device_instance *) tree_find_ihandle_property
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(device *root,
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const char *path_to_property);
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INLINE_TREE\
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(const char *) tree_find_string_property
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(device *root,
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const char *path_to_property);
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/* Initializing the created tree:
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Once a device tree has been created the <<device_tree_init()>>
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function is used to initialize it. The exact sequence of events
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that occure during initialization are described separatly.
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*/
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INLINE_TREE\
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(void) tree_init
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(device *root,
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psim *system);
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#endif /* _TREE_H_ */
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