1#ifndef _SPARC_PROM_H
2#define _SPARC_PROM_H
3#ifdef __KERNEL__
4
5
6/*
7 * Definitions for talking to the Open Firmware PROM on
8 * Power Macintosh computers.
9 *
10 * Copyright (C) 1996-2005 Paul Mackerras.
11 *
12 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
13 * Updates for SPARC32 by David S. Miller
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
19 */
20
21#include <linux/types.h>
22#include <linux/proc_fs.h>
23#include <asm/atomic.h>
24
25typedef u32 phandle;
26typedef u32 ihandle;
27
28struct property {
29	char	*name;
30	int	length;
31	void	*value;
32	struct property *next;
33	unsigned long _flags;
34	unsigned int unique_id;
35};
36
37struct device_node {
38	const char	*name;
39	const char	*type;
40	phandle	node;
41	char	*path_component_name;
42	char	*full_name;
43
44	struct	property *properties;
45	struct  property *deadprops; /* removed properties */
46	struct	device_node *parent;
47	struct	device_node *child;
48	struct	device_node *sibling;
49	struct	device_node *next;	/* next device of same type */
50	struct	device_node *allnext;	/* next in list of all nodes */
51	struct  proc_dir_entry *pde;	/* this node's proc directory */
52	struct  kref kref;
53	unsigned long _flags;
54	void	*data;
55	unsigned int unique_id;
56};
57
58/* flag descriptions */
59#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
60
61#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
62#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
63
64#define OF_BAD_ADDR	((u64)-1)
65
66static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
67{
68	dn->pde = de;
69}
70
71extern struct device_node *of_find_node_by_name(struct device_node *from,
72	const char *name);
73#define for_each_node_by_name(dn, name) \
74	for (dn = of_find_node_by_name(NULL, name); dn; \
75	     dn = of_find_node_by_name(dn, name))
76extern struct device_node *of_find_node_by_type(struct device_node *from,
77	const char *type);
78#define for_each_node_by_type(dn, type) \
79	for (dn = of_find_node_by_type(NULL, type); dn; \
80	     dn = of_find_node_by_type(dn, type))
81extern struct device_node *of_find_compatible_node(struct device_node *from,
82	const char *type, const char *compat);
83extern struct device_node *of_find_node_by_path(const char *path);
84extern struct device_node *of_find_node_by_phandle(phandle handle);
85extern struct device_node *of_get_parent(const struct device_node *node);
86extern struct device_node *of_get_next_child(const struct device_node *node,
87					     struct device_node *prev);
88extern struct property *of_find_property(const struct device_node *np,
89					 const char *name,
90					 int *lenp);
91extern int of_device_is_compatible(const struct device_node *device,
92				   const char *);
93extern const void *of_get_property(const struct device_node *node,
94				   const char *name,
95				   int *lenp);
96#define get_property(node,name,lenp) of_get_property(node,name,lenp)
97extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
98extern int of_getintprop_default(struct device_node *np,
99				 const char *name,
100				 int def);
101extern int of_n_addr_cells(struct device_node *np);
102extern int of_n_size_cells(struct device_node *np);
103
104extern void prom_build_devicetree(void);
105
106#endif /* __KERNEL__ */
107#endif /* _SPARC_PROM_H */
108