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David S. Miller942a6bd2006-06-23 15:53:31 -07001#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
David S. Miller942a6bd2006-06-23 15:53:31 -070028struct property {
29 char *name;
30 int length;
31 void *value;
32 struct property *next;
David S. Millerfb7cd9d2006-06-25 23:18:36 -070033 unsigned long _flags;
David S. Miller87b385d2006-06-25 23:18:57 -070034 unsigned int unique_id;
David S. Miller942a6bd2006-06-23 15:53:31 -070035};
36
37struct device_node {
38 char *name;
39 char *type;
40 phandle node;
David S. Miller942a6bd2006-06-23 15:53:31 -070041 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;
David S. Miller87b385d2006-06-25 23:18:57 -070055 unsigned int unique_id;
David S. Miller942a6bd2006-06-23 15:53:31 -070056};
57
David S. Millerfb7cd9d2006-06-25 23:18:36 -070058/* 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
David S. Millercf44bbc2006-06-29 14:34:50 -070064#define OF_BAD_ADDR ((u64)-1)
65
David S. Miller942a6bd2006-06-23 15:53:31 -070066static 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(struct device_node *np,
89 const char *name,
90 int *lenp);
91extern int of_device_is_compatible(struct device_node *device, const char *);
92extern void *of_get_property(struct device_node *node, const char *name,
93 int *lenp);
David S. Millerfb7cd9d2006-06-25 23:18:36 -070094extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
David S. Miller942a6bd2006-06-23 15:53:31 -070095extern int of_getintprop_default(struct device_node *np,
96 const char *name,
97 int def);
David S. Miller3ae9a3482006-06-29 14:34:12 -070098extern int of_n_addr_cells(struct device_node *np);
99extern int of_n_size_cells(struct device_node *np);
David S. Miller942a6bd2006-06-23 15:53:31 -0700100
101extern void prom_build_devicetree(void);
102
103#endif /* __KERNEL__ */
104#endif /* _SPARC_PROM_H */