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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
28struct interrupt_info {
29 int line;
30 int sense; /* +ve/-ve logic, edge or level, etc. */
31};
32
33struct property {
34 char *name;
35 int length;
36 void *value;
37 struct property *next;
38};
39
40struct device_node {
41 char *name;
42 char *type;
43 phandle node;
44 phandle linux_phandle;
45 int n_intrs;
46 struct interrupt_info *intrs;
47 char *path_component_name;
48 char *full_name;
49
50 struct property *properties;
51 struct property *deadprops; /* removed properties */
52 struct device_node *parent;
53 struct device_node *child;
54 struct device_node *sibling;
55 struct device_node *next; /* next device of same type */
56 struct device_node *allnext; /* next in list of all nodes */
57 struct proc_dir_entry *pde; /* this node's proc directory */
58 struct kref kref;
59 unsigned long _flags;
60 void *data;
61};
62
63static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
64{
65 dn->pde = de;
66}
67
68extern struct device_node *of_find_node_by_name(struct device_node *from,
69 const char *name);
70#define for_each_node_by_name(dn, name) \
71 for (dn = of_find_node_by_name(NULL, name); dn; \
72 dn = of_find_node_by_name(dn, name))
73extern struct device_node *of_find_node_by_type(struct device_node *from,
74 const char *type);
75#define for_each_node_by_type(dn, type) \
76 for (dn = of_find_node_by_type(NULL, type); dn; \
77 dn = of_find_node_by_type(dn, type))
78extern struct device_node *of_find_compatible_node(struct device_node *from,
79 const char *type, const char *compat);
80extern struct device_node *of_find_node_by_path(const char *path);
81extern struct device_node *of_find_node_by_phandle(phandle handle);
82extern struct device_node *of_get_parent(const struct device_node *node);
83extern struct device_node *of_get_next_child(const struct device_node *node,
84 struct device_node *prev);
85extern struct property *of_find_property(struct device_node *np,
86 const char *name,
87 int *lenp);
88extern int of_device_is_compatible(struct device_node *device, const char *);
89extern void *of_get_property(struct device_node *node, const char *name,
90 int *lenp);
91extern int of_getintprop_default(struct device_node *np,
92 const char *name,
93 int def);
94
95extern void prom_build_devicetree(void);
96
97#endif /* __KERNEL__ */
98#endif /* _SPARC_PROM_H */