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1 | /* |
2 | * property.h - Unified device property interface. | |
3 | * | |
4 | * Copyright (C) 2014, Intel Corporation | |
5 | * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com> | |
6 | * Mika Westerberg <mika.westerberg@linux.intel.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #ifndef _LINUX_PROPERTY_H_ | |
14 | #define _LINUX_PROPERTY_H_ | |
15 | ||
ce793486 | 16 | #include <linux/fwnode.h> |
b31384fa RW |
17 | #include <linux/types.h> |
18 | ||
19 | struct device; | |
20 | ||
21 | enum dev_prop_type { | |
22 | DEV_PROP_U8, | |
23 | DEV_PROP_U16, | |
24 | DEV_PROP_U32, | |
25 | DEV_PROP_U64, | |
26 | DEV_PROP_STRING, | |
27 | DEV_PROP_MAX, | |
28 | }; | |
29 | ||
30 | bool device_property_present(struct device *dev, const char *propname); | |
31 | int device_property_read_u8_array(struct device *dev, const char *propname, | |
32 | u8 *val, size_t nval); | |
33 | int device_property_read_u16_array(struct device *dev, const char *propname, | |
34 | u16 *val, size_t nval); | |
35 | int device_property_read_u32_array(struct device *dev, const char *propname, | |
36 | u32 *val, size_t nval); | |
37 | int device_property_read_u64_array(struct device *dev, const char *propname, | |
38 | u64 *val, size_t nval); | |
39 | int device_property_read_string_array(struct device *dev, const char *propname, | |
40 | const char **val, size_t nval); | |
41 | int device_property_read_string(struct device *dev, const char *propname, | |
42 | const char **val); | |
3f5c8d31 MW |
43 | int device_property_match_string(struct device *dev, |
44 | const char *propname, const char *string); | |
b31384fa | 45 | |
8a0662d9 RW |
46 | bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname); |
47 | int fwnode_property_read_u8_array(struct fwnode_handle *fwnode, | |
48 | const char *propname, u8 *val, | |
49 | size_t nval); | |
50 | int fwnode_property_read_u16_array(struct fwnode_handle *fwnode, | |
51 | const char *propname, u16 *val, | |
52 | size_t nval); | |
53 | int fwnode_property_read_u32_array(struct fwnode_handle *fwnode, | |
54 | const char *propname, u32 *val, | |
55 | size_t nval); | |
56 | int fwnode_property_read_u64_array(struct fwnode_handle *fwnode, | |
57 | const char *propname, u64 *val, | |
58 | size_t nval); | |
59 | int fwnode_property_read_string_array(struct fwnode_handle *fwnode, | |
60 | const char *propname, const char **val, | |
61 | size_t nval); | |
62 | int fwnode_property_read_string(struct fwnode_handle *fwnode, | |
63 | const char *propname, const char **val); | |
3f5c8d31 MW |
64 | int fwnode_property_match_string(struct fwnode_handle *fwnode, |
65 | const char *propname, const char *string); | |
8a0662d9 RW |
66 | |
67 | struct fwnode_handle *device_get_next_child_node(struct device *dev, | |
68 | struct fwnode_handle *child); | |
69 | ||
70 | #define device_for_each_child_node(dev, child) \ | |
71 | for (child = device_get_next_child_node(dev, NULL); child; \ | |
72 | child = device_get_next_child_node(dev, child)) | |
73 | ||
74 | void fwnode_handle_put(struct fwnode_handle *fwnode); | |
75 | ||
76 | unsigned int device_get_child_node_count(struct device *dev); | |
77 | ||
b31384fa RW |
78 | static inline bool device_property_read_bool(struct device *dev, |
79 | const char *propname) | |
80 | { | |
81 | return device_property_present(dev, propname); | |
82 | } | |
83 | ||
84 | static inline int device_property_read_u8(struct device *dev, | |
85 | const char *propname, u8 *val) | |
86 | { | |
87 | return device_property_read_u8_array(dev, propname, val, 1); | |
88 | } | |
89 | ||
90 | static inline int device_property_read_u16(struct device *dev, | |
91 | const char *propname, u16 *val) | |
92 | { | |
93 | return device_property_read_u16_array(dev, propname, val, 1); | |
94 | } | |
95 | ||
96 | static inline int device_property_read_u32(struct device *dev, | |
97 | const char *propname, u32 *val) | |
98 | { | |
99 | return device_property_read_u32_array(dev, propname, val, 1); | |
100 | } | |
101 | ||
102 | static inline int device_property_read_u64(struct device *dev, | |
103 | const char *propname, u64 *val) | |
104 | { | |
105 | return device_property_read_u64_array(dev, propname, val, 1); | |
106 | } | |
107 | ||
8a0662d9 RW |
108 | static inline bool fwnode_property_read_bool(struct fwnode_handle *fwnode, |
109 | const char *propname) | |
110 | { | |
111 | return fwnode_property_present(fwnode, propname); | |
112 | } | |
113 | ||
114 | static inline int fwnode_property_read_u8(struct fwnode_handle *fwnode, | |
115 | const char *propname, u8 *val) | |
116 | { | |
117 | return fwnode_property_read_u8_array(fwnode, propname, val, 1); | |
118 | } | |
119 | ||
120 | static inline int fwnode_property_read_u16(struct fwnode_handle *fwnode, | |
121 | const char *propname, u16 *val) | |
122 | { | |
123 | return fwnode_property_read_u16_array(fwnode, propname, val, 1); | |
124 | } | |
125 | ||
126 | static inline int fwnode_property_read_u32(struct fwnode_handle *fwnode, | |
127 | const char *propname, u32 *val) | |
128 | { | |
129 | return fwnode_property_read_u32_array(fwnode, propname, val, 1); | |
130 | } | |
131 | ||
132 | static inline int fwnode_property_read_u64(struct fwnode_handle *fwnode, | |
133 | const char *propname, u64 *val) | |
134 | { | |
135 | return fwnode_property_read_u64_array(fwnode, propname, val, 1); | |
136 | } | |
137 | ||
16ba08d5 RW |
138 | /** |
139 | * struct property_entry - "Built-in" device property representation. | |
140 | * @name: Name of the property. | |
141 | * @type: Type of the property. | |
142 | * @nval: Number of items of type @type making up the value. | |
143 | * @value: Value of the property (an array of @nval items of type @type). | |
144 | */ | |
145 | struct property_entry { | |
146 | const char *name; | |
147 | enum dev_prop_type type; | |
148 | size_t nval; | |
149 | union { | |
150 | void *raw_data; | |
151 | u8 *u8_data; | |
152 | u16 *u16_data; | |
153 | u32 *u32_data; | |
154 | u64 *u64_data; | |
155 | const char **str; | |
156 | } value; | |
157 | }; | |
158 | ||
159 | /** | |
160 | * struct property_set - Collection of "built-in" device properties. | |
161 | * @fwnode: Handle to be pointed to by the fwnode field of struct device. | |
162 | * @properties: Array of properties terminated with a null entry. | |
163 | */ | |
164 | struct property_set { | |
165 | struct fwnode_handle fwnode; | |
166 | struct property_entry *properties; | |
167 | }; | |
168 | ||
169 | void device_add_property_set(struct device *dev, struct property_set *pset); | |
170 | ||
05ca5560 SS |
171 | bool device_dma_is_coherent(struct device *dev); |
172 | ||
4c96b7dc JL |
173 | int device_get_phy_mode(struct device *dev); |
174 | ||
175 | void *device_get_mac_address(struct device *dev, char *addr, int alen); | |
176 | ||
b31384fa | 177 | #endif /* _LINUX_PROPERTY_H_ */ |