include/linux/of.h
changeset 0 aa628870c1d3
child 2 d1f6d8b6f81c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/linux/of.h	Sun Jan 11 20:20:11 2009 +0100
@@ -0,0 +1,78 @@
+#ifndef _LINUX_OF_H
+#define _LINUX_OF_H
+/*
+ * Definitions for talking to the Open Firmware PROM on
+ * Power Macintosh and other computers.
+ *
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
+ * Updates for SPARC64 by David S. Miller
+ * Derived from PowerPC and Sparc prom.h files by Stephen Rothwell, IBM Corp.
+ *
+ * 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.
+ */
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/mod_devicetable.h>
+
+#include <asm/prom.h>
+
+/* flag descriptions */
+#define OF_DYNAMIC	1 /* node and properties were allocated via kmalloc */
+#define OF_DETACHED	2 /* node has been detached from the device tree */
+
+#define OF_BAD_ADDR	((u64)-1)
+
+extern struct device_node *of_find_node_by_name(struct device_node *from,
+	const char *name);
+#define for_each_node_by_name(dn, name) \
+	for (dn = of_find_node_by_name(NULL, name); dn; \
+	     dn = of_find_node_by_name(dn, name))
+extern struct device_node *of_find_node_by_type(struct device_node *from,
+	const char *type);
+#define for_each_node_by_type(dn, type) \
+	for (dn = of_find_node_by_type(NULL, type); dn; \
+	     dn = of_find_node_by_type(dn, type))
+extern struct device_node *of_find_compatible_node(struct device_node *from,
+	const char *type, const char *compat);
+#define for_each_compatible_node(dn, type, compatible) \
+	for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
+	     dn = of_find_compatible_node(dn, type, compatible))
+extern struct device_node *of_find_matching_node(struct device_node *from,
+	const struct of_device_id *matches);
+#define for_each_matching_node(dn, matches) \
+	for (dn = of_find_matching_node(NULL, matches); dn; \
+	     dn = of_find_matching_node(dn, matches))
+extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_node_by_phandle(phandle handle);
+extern struct device_node *of_get_parent(const struct device_node *node);
+extern struct device_node *of_get_next_parent(struct device_node *node);
+extern struct device_node *of_get_next_child(const struct device_node *node,
+					     struct device_node *prev);
+#define for_each_child_of_node(parent, child) \
+	for (child = of_get_next_child(parent, NULL); child != NULL; \
+	     child = of_get_next_child(parent, child))
+
+extern struct property *of_find_property(const struct device_node *np,
+					 const char *name,
+					 int *lenp);
+extern int of_device_is_compatible(const struct device_node *device,
+				   const char *);
+extern int of_device_is_available(const struct device_node *device);
+extern const void *of_get_property(const struct device_node *node,
+				const char *name,
+				int *lenp);
+extern int of_n_addr_cells(struct device_node *np);
+extern int of_n_size_cells(struct device_node *np);
+extern const struct of_device_id *of_match_node(
+	const struct of_device_id *matches, const struct device_node *node);
+extern int of_modalias_node(struct device_node *node, char *modalias, int len);
+extern int of_parse_phandles_with_args(struct device_node *np,
+	const char *list_name, const char *cells_name, int index,
+	struct device_node **out_node, const void **out_args);
+
+#endif /* _LINUX_OF_H */