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authorAndrew Cagney <cagney@redhat.com>1998-03-18 04:08:21 +0000
committerAndrew Cagney <cagney@redhat.com>1998-03-18 04:08:21 +0000
commitae7c344679d17849a6ac15403564e88834c3405a (patch)
tree508cc0f89aeaf5107eb6349e71c6bfcab4b3745d /sim/common/hw-tree.h
parent9a8e61f1d450f26bef1a743ff232b19567981e3d (diff)
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Prototype common device framework. Plenty more work to go.
Diffstat (limited to 'sim/common/hw-tree.h')
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diff --git a/sim/common/hw-tree.h b/sim/common/hw-tree.h
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+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, 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 HW_TREE
+#define HW_TREE
+
+
+struct hw *hw_tree_create
+(SIM_DESC sd,
+ const char *device);
+
+struct hw *hw_tree_parse
+(struct hw *root,
+ const char *fmt,
+ ...) __attribute__ ((format (printf, 2, 3)));
+
+void hw_tree_finish
+(struct hw *root);
+
+void hw_tree_print
+(struct hw *root);
+
+
+/* Tree traversal::
+
+ The entire device tree can be traversed using the
+ <<device_tree_traverse()>> function. The traversal can be in
+ either prefix or postfix order.
+
+ */
+
+typedef void (hw_tree_traverse_function)
+ (struct hw *device,
+ void *data);
+
+void hw_tree_traverse
+(struct hw *root,
+ hw_tree_traverse_function *prefix,
+ hw_tree_traverse_function *postfix,
+ void *data);
+
+
+/* Tree lookup::
+
+ The function <<hw_tree_find_device()>> will attempt to locate the
+ specified device within the tree. If the device is not found a
+ NULL device is returned.
+
+ */
+
+struct hw * hw_tree_find_device
+(struct hw *root,
+ const char *path);
+
+
+const struct hw_property *hw_tree_find_property
+(struct hw *root,
+ const char *path_to_property);
+
+int hw_tree_find_boolean_property
+(struct hw *root,
+ const char *path_to_property);
+
+signed_cell hw_tree_find_integer_property
+(struct hw *root,
+ const char *path_to_property);
+
+#if NOT_YET
+device_instance *hw_tree_find_ihandle_property
+(struct hw *root,
+ const char *path_to_property);
+#endif
+
+const char *hw_tree_find_string_property
+(struct hw *root,
+ const char *path_to_property);
+
+
+/* Perform a soft reset on the created tree. */
+
+void hw_tree_reset
+(struct hw *root);
+
+
+#endif