1 /* Public domain. */
2
3 #ifndef _LINUX_OF_H
4 #define _LINUX_OF_H
5
6 #ifdef __macppc__
7 static inline int
of_machine_is_compatible(const char * model)8 of_machine_is_compatible(const char *model)
9 {
10 extern char *hw_prod;
11 return (strcmp(model, hw_prod) == 0);
12 }
13 #endif
14
15 struct device_node {
16 const char *full_name;
17 };
18
19 #define of_node dv_cfdata
20
21 struct device_node *__of_get_compatible_child(void *, const char *);
22 #define of_get_compatible_child(d, n) \
23 __of_get_compatible_child(&(d), (n))
24
25 struct device_node *__of_get_child_by_name(void *, const char *);
26 #define of_get_child_by_name(d, n) \
27 __of_get_child_by_name(&(d), (n))
28
29 #define of_node_put(p)
30
31 struct device_node *__of_devnode(void *);
32 #define __of_node(arg) \
33 __builtin_types_compatible_p(typeof(arg), struct device_node *) ? \
34 (struct device_node *)arg : __of_devnode(&arg)
35
36 int __of_property_present(struct device_node *, const char *);
37 #define of_property_present(n, p) \
38 __of_property_present(__of_node(n), (p))
39
40 int __of_property_read_variable_u32_array(struct device_node *,
41 const char *, uint32_t *, size_t, size_t);
42 #define of_property_read_u32(n, p, o) \
43 __of_property_read_variable_u32_array(__of_node(n), (p), (o), 1, 1)
44 #define of_property_read_variable_u32_array(n, p, o, l, h) \
45 __of_property_read_variable_u32_array(__of_node(n), (p), (o), (l), (h))
46
47 int __of_property_read_variable_u64_array(struct device_node *,
48 const char *, uint64_t *, size_t, size_t);
49 #define of_property_read_u64(n, p, o) \
50 __of_property_read_variable_u64_array(__of_node(n), (p), (o), 1, 1)
51
52 int __of_property_match_string(struct device_node *,
53 const char *, const char *);
54 #define of_property_match_string(n, a, b) \
55 __of_property_match_string(__of_node(n), (a), (b))
56
57 struct device_node *__of_parse_phandle(struct device_node *,
58 const char *, int);
59 #define of_parse_phandle(n, a, b) \
60 __of_parse_phandle(__of_node(n), (a), (b))
61
62 struct of_phandle_args {
63 struct device_node *np;
64 int args_count;
65 uint32_t args[5];
66 };
67
68 int __of_parse_phandle_with_args(struct device_node *,
69 const char *, const char *, int, struct of_phandle_args *);
70 #define of_parse_phandle_with_args(n, a, b, c, d) \
71 __of_parse_phandle_with_args(__of_node(n), (a), (b), (c), (d))
72
73 int of_device_is_available(struct device_node *);
74
75 struct of_device_id {
76 const char *compatible;
77 const void *data;
78 };
79
80 struct device_node *__matching_node(struct device_node *,
81 const struct of_device_id *);
82 #define for_each_matching_node(a, b) \
83 for (a = __matching_node(NULL, b); a; a = __matching_node(a, b))
84
85 #endif
86