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4a11b59d AV |
1 | /* |
2 | * Universal power supply monitor class | |
3 | * | |
4 | * Copyright © 2007 Anton Vorontsov <cbou@mail.ru> | |
5 | * Copyright © 2004 Szabolcs Gyurko | |
6 | * Copyright © 2003 Ian Molton <spyro@f2s.com> | |
7 | * | |
8 | * Modified: 2004, Oct Szabolcs Gyurko | |
9 | * | |
10 | * You may use this code as per GPL version 2 | |
11 | */ | |
12 | ||
13 | #ifndef __LINUX_POWER_SUPPLY_H__ | |
14 | #define __LINUX_POWER_SUPPLY_H__ | |
15 | ||
16 | #include <linux/device.h> | |
17 | #include <linux/workqueue.h> | |
18 | #include <linux/leds.h> | |
19 | ||
20 | /* | |
21 | * All voltages, currents, charges, energies, time and temperatures in uV, | |
22 | * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise | |
23 | * stated. It's driver's job to convert its raw values to units in which | |
24 | * this class operates. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * For systems where the charger determines the maximum battery capacity | |
29 | * the min and max fields should be used to present these values to user | |
30 | * space. Unused/unknown fields will not appear in sysfs. | |
31 | */ | |
32 | ||
33 | enum { | |
34 | POWER_SUPPLY_STATUS_UNKNOWN = 0, | |
35 | POWER_SUPPLY_STATUS_CHARGING, | |
36 | POWER_SUPPLY_STATUS_DISCHARGING, | |
37 | POWER_SUPPLY_STATUS_NOT_CHARGING, | |
38 | POWER_SUPPLY_STATUS_FULL, | |
39 | }; | |
40 | ||
41 | enum { | |
42 | POWER_SUPPLY_HEALTH_UNKNOWN = 0, | |
43 | POWER_SUPPLY_HEALTH_GOOD, | |
44 | POWER_SUPPLY_HEALTH_OVERHEAT, | |
45 | POWER_SUPPLY_HEALTH_DEAD, | |
46 | POWER_SUPPLY_HEALTH_OVERVOLTAGE, | |
47 | POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, | |
7e386e6e | 48 | POWER_SUPPLY_HEALTH_COLD, |
4a11b59d AV |
49 | }; |
50 | ||
51 | enum { | |
52 | POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, | |
53 | POWER_SUPPLY_TECHNOLOGY_NiMH, | |
54 | POWER_SUPPLY_TECHNOLOGY_LION, | |
55 | POWER_SUPPLY_TECHNOLOGY_LIPO, | |
56 | POWER_SUPPLY_TECHNOLOGY_LiFe, | |
57 | POWER_SUPPLY_TECHNOLOGY_NiCd, | |
c7cc930f | 58 | POWER_SUPPLY_TECHNOLOGY_LiMn, |
4a11b59d AV |
59 | }; |
60 | ||
4a11b59d AV |
61 | enum power_supply_property { |
62 | /* Properties of type `int' */ | |
63 | POWER_SUPPLY_PROP_STATUS = 0, | |
64 | POWER_SUPPLY_PROP_HEALTH, | |
65 | POWER_SUPPLY_PROP_PRESENT, | |
66 | POWER_SUPPLY_PROP_ONLINE, | |
67 | POWER_SUPPLY_PROP_TECHNOLOGY, | |
c7cc930f DES |
68 | POWER_SUPPLY_PROP_VOLTAGE_MAX, |
69 | POWER_SUPPLY_PROP_VOLTAGE_MIN, | |
4a11b59d AV |
70 | POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, |
71 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, | |
72 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
73 | POWER_SUPPLY_PROP_VOLTAGE_AVG, | |
74 | POWER_SUPPLY_PROP_CURRENT_NOW, | |
75 | POWER_SUPPLY_PROP_CURRENT_AVG, | |
76 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, | |
77 | POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, | |
78 | POWER_SUPPLY_PROP_CHARGE_FULL, | |
79 | POWER_SUPPLY_PROP_CHARGE_EMPTY, | |
80 | POWER_SUPPLY_PROP_CHARGE_NOW, | |
81 | POWER_SUPPLY_PROP_CHARGE_AVG, | |
8e552c36 | 82 | POWER_SUPPLY_PROP_CHARGE_COUNTER, |
4a11b59d AV |
83 | POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, |
84 | POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, | |
85 | POWER_SUPPLY_PROP_ENERGY_FULL, | |
86 | POWER_SUPPLY_PROP_ENERGY_EMPTY, | |
87 | POWER_SUPPLY_PROP_ENERGY_NOW, | |
88 | POWER_SUPPLY_PROP_ENERGY_AVG, | |
89 | POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ | |
4a11b59d AV |
90 | POWER_SUPPLY_PROP_TEMP, |
91 | POWER_SUPPLY_PROP_TEMP_AMBIENT, | |
92 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, | |
93 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, | |
94 | POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, | |
95 | POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, | |
96 | /* Properties of type `const char *' */ | |
97 | POWER_SUPPLY_PROP_MODEL_NAME, | |
98 | POWER_SUPPLY_PROP_MANUFACTURER, | |
7c2670bb | 99 | POWER_SUPPLY_PROP_SERIAL_NUMBER, |
4a11b59d AV |
100 | }; |
101 | ||
102 | enum power_supply_type { | |
103 | POWER_SUPPLY_TYPE_BATTERY = 0, | |
104 | POWER_SUPPLY_TYPE_UPS, | |
105 | POWER_SUPPLY_TYPE_MAINS, | |
106 | POWER_SUPPLY_TYPE_USB, | |
107 | }; | |
108 | ||
109 | union power_supply_propval { | |
110 | int intval; | |
111 | const char *strval; | |
112 | }; | |
113 | ||
114 | struct power_supply { | |
115 | const char *name; | |
116 | enum power_supply_type type; | |
117 | enum power_supply_property *properties; | |
118 | size_t num_properties; | |
119 | ||
120 | char **supplied_to; | |
121 | size_t num_supplicants; | |
122 | ||
123 | int (*get_property)(struct power_supply *psy, | |
124 | enum power_supply_property psp, | |
125 | union power_supply_propval *val); | |
126 | void (*external_power_changed)(struct power_supply *psy); | |
127 | ||
128 | /* For APM emulation, think legacy userspace. */ | |
129 | int use_for_apm; | |
130 | ||
131 | /* private */ | |
132 | struct device *dev; | |
133 | struct work_struct changed_work; | |
134 | ||
135 | #ifdef CONFIG_LEDS_TRIGGERS | |
136 | struct led_trigger *charging_full_trig; | |
137 | char *charging_full_trig_name; | |
138 | struct led_trigger *charging_trig; | |
139 | char *charging_trig_name; | |
140 | struct led_trigger *full_trig; | |
141 | char *full_trig_name; | |
142 | struct led_trigger *online_trig; | |
143 | char *online_trig_name; | |
144 | #endif | |
145 | }; | |
146 | ||
147 | /* | |
148 | * This is recommended structure to specify static power supply parameters. | |
149 | * Generic one, parametrizable for different power supplies. Power supply | |
150 | * class itself does not use it, but that's what implementing most platform | |
151 | * drivers, should try reuse for consistency. | |
152 | */ | |
153 | ||
154 | struct power_supply_info { | |
155 | const char *name; | |
156 | int technology; | |
157 | int voltage_max_design; | |
158 | int voltage_min_design; | |
159 | int charge_full_design; | |
160 | int charge_empty_design; | |
161 | int energy_full_design; | |
162 | int energy_empty_design; | |
163 | int use_for_apm; | |
164 | }; | |
165 | ||
166 | extern void power_supply_changed(struct power_supply *psy); | |
167 | extern int power_supply_am_i_supplied(struct power_supply *psy); | |
168 | ||
942ed161 MG |
169 | #if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE) |
170 | extern int power_supply_is_system_supplied(void); | |
171 | #else | |
172 | static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } | |
173 | #endif | |
174 | ||
4a11b59d AV |
175 | extern int power_supply_register(struct device *parent, |
176 | struct power_supply *psy); | |
177 | extern void power_supply_unregister(struct power_supply *psy); | |
178 | ||
179 | /* For APM emulation, think legacy userspace. */ | |
180 | extern struct class *power_supply_class; | |
181 | ||
182 | #endif /* __LINUX_POWER_SUPPLY_H__ */ |