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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 | ||
4a11b59d AV |
16 | #include <linux/workqueue.h> |
17 | #include <linux/leds.h> | |
18 | ||
313162d0 PG |
19 | struct device; |
20 | ||
4a11b59d AV |
21 | /* |
22 | * All voltages, currents, charges, energies, time and temperatures in uV, | |
23 | * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise | |
24 | * stated. It's driver's job to convert its raw values to units in which | |
25 | * this class operates. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * For systems where the charger determines the maximum battery capacity | |
30 | * the min and max fields should be used to present these values to user | |
31 | * space. Unused/unknown fields will not appear in sysfs. | |
32 | */ | |
33 | ||
34 | enum { | |
35 | POWER_SUPPLY_STATUS_UNKNOWN = 0, | |
36 | POWER_SUPPLY_STATUS_CHARGING, | |
37 | POWER_SUPPLY_STATUS_DISCHARGING, | |
38 | POWER_SUPPLY_STATUS_NOT_CHARGING, | |
39 | POWER_SUPPLY_STATUS_FULL, | |
40 | }; | |
41 | ||
ee8076ed AS |
42 | enum { |
43 | POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0, | |
44 | POWER_SUPPLY_CHARGE_TYPE_NONE, | |
45 | POWER_SUPPLY_CHARGE_TYPE_TRICKLE, | |
46 | POWER_SUPPLY_CHARGE_TYPE_FAST, | |
47 | }; | |
48 | ||
4a11b59d AV |
49 | enum { |
50 | POWER_SUPPLY_HEALTH_UNKNOWN = 0, | |
51 | POWER_SUPPLY_HEALTH_GOOD, | |
52 | POWER_SUPPLY_HEALTH_OVERHEAT, | |
53 | POWER_SUPPLY_HEALTH_DEAD, | |
54 | POWER_SUPPLY_HEALTH_OVERVOLTAGE, | |
55 | POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, | |
7e386e6e | 56 | POWER_SUPPLY_HEALTH_COLD, |
4a11b59d AV |
57 | }; |
58 | ||
59 | enum { | |
60 | POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, | |
61 | POWER_SUPPLY_TECHNOLOGY_NiMH, | |
62 | POWER_SUPPLY_TECHNOLOGY_LION, | |
63 | POWER_SUPPLY_TECHNOLOGY_LIPO, | |
64 | POWER_SUPPLY_TECHNOLOGY_LiFe, | |
65 | POWER_SUPPLY_TECHNOLOGY_NiCd, | |
c7cc930f | 66 | POWER_SUPPLY_TECHNOLOGY_LiMn, |
4a11b59d AV |
67 | }; |
68 | ||
b294a290 AS |
69 | enum { |
70 | POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0, | |
71 | POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL, | |
72 | POWER_SUPPLY_CAPACITY_LEVEL_LOW, | |
73 | POWER_SUPPLY_CAPACITY_LEVEL_NORMAL, | |
74 | POWER_SUPPLY_CAPACITY_LEVEL_HIGH, | |
75 | POWER_SUPPLY_CAPACITY_LEVEL_FULL, | |
76 | }; | |
77 | ||
25a0bc2d JF |
78 | enum { |
79 | POWER_SUPPLY_SCOPE_UNKNOWN = 0, | |
80 | POWER_SUPPLY_SCOPE_SYSTEM, | |
81 | POWER_SUPPLY_SCOPE_DEVICE, | |
82 | }; | |
83 | ||
4a11b59d AV |
84 | enum power_supply_property { |
85 | /* Properties of type `int' */ | |
86 | POWER_SUPPLY_PROP_STATUS = 0, | |
ee8076ed | 87 | POWER_SUPPLY_PROP_CHARGE_TYPE, |
4a11b59d AV |
88 | POWER_SUPPLY_PROP_HEALTH, |
89 | POWER_SUPPLY_PROP_PRESENT, | |
90 | POWER_SUPPLY_PROP_ONLINE, | |
91 | POWER_SUPPLY_PROP_TECHNOLOGY, | |
c955fe8e | 92 | POWER_SUPPLY_PROP_CYCLE_COUNT, |
c7cc930f DB |
93 | POWER_SUPPLY_PROP_VOLTAGE_MAX, |
94 | POWER_SUPPLY_PROP_VOLTAGE_MIN, | |
4a11b59d AV |
95 | POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, |
96 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, | |
97 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
98 | POWER_SUPPLY_PROP_VOLTAGE_AVG, | |
a2ebfe2f | 99 | POWER_SUPPLY_PROP_VOLTAGE_OCV, |
fe3f6d09 | 100 | POWER_SUPPLY_PROP_CURRENT_MAX, |
4a11b59d AV |
101 | POWER_SUPPLY_PROP_CURRENT_NOW, |
102 | POWER_SUPPLY_PROP_CURRENT_AVG, | |
7faa144a AS |
103 | POWER_SUPPLY_PROP_POWER_NOW, |
104 | POWER_SUPPLY_PROP_POWER_AVG, | |
4a11b59d AV |
105 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
106 | POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, | |
107 | POWER_SUPPLY_PROP_CHARGE_FULL, | |
108 | POWER_SUPPLY_PROP_CHARGE_EMPTY, | |
109 | POWER_SUPPLY_PROP_CHARGE_NOW, | |
110 | POWER_SUPPLY_PROP_CHARGE_AVG, | |
8e552c36 | 111 | POWER_SUPPLY_PROP_CHARGE_COUNTER, |
4a11b59d AV |
112 | POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, |
113 | POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, | |
114 | POWER_SUPPLY_PROP_ENERGY_FULL, | |
115 | POWER_SUPPLY_PROP_ENERGY_EMPTY, | |
116 | POWER_SUPPLY_PROP_ENERGY_NOW, | |
117 | POWER_SUPPLY_PROP_ENERGY_AVG, | |
118 | POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ | |
b294a290 | 119 | POWER_SUPPLY_PROP_CAPACITY_LEVEL, |
4a11b59d AV |
120 | POWER_SUPPLY_PROP_TEMP, |
121 | POWER_SUPPLY_PROP_TEMP_AMBIENT, | |
122 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, | |
123 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, | |
124 | POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, | |
125 | POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, | |
5f487cd3 | 126 | POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */ |
25a0bc2d | 127 | POWER_SUPPLY_PROP_SCOPE, |
4a11b59d AV |
128 | /* Properties of type `const char *' */ |
129 | POWER_SUPPLY_PROP_MODEL_NAME, | |
130 | POWER_SUPPLY_PROP_MANUFACTURER, | |
7c2670bb | 131 | POWER_SUPPLY_PROP_SERIAL_NUMBER, |
4a11b59d AV |
132 | }; |
133 | ||
134 | enum power_supply_type { | |
9b887227 KM |
135 | POWER_SUPPLY_TYPE_UNKNOWN = 0, |
136 | POWER_SUPPLY_TYPE_BATTERY, | |
4a11b59d AV |
137 | POWER_SUPPLY_TYPE_UPS, |
138 | POWER_SUPPLY_TYPE_MAINS, | |
85efc8a1 HK |
139 | POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */ |
140 | POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */ | |
141 | POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */ | |
142 | POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */ | |
4a11b59d AV |
143 | }; |
144 | ||
145 | union power_supply_propval { | |
146 | int intval; | |
147 | const char *strval; | |
148 | }; | |
149 | ||
150 | struct power_supply { | |
151 | const char *name; | |
152 | enum power_supply_type type; | |
153 | enum power_supply_property *properties; | |
154 | size_t num_properties; | |
155 | ||
156 | char **supplied_to; | |
157 | size_t num_supplicants; | |
158 | ||
159 | int (*get_property)(struct power_supply *psy, | |
160 | enum power_supply_property psp, | |
161 | union power_supply_propval *val); | |
0011d2d4 DM |
162 | int (*set_property)(struct power_supply *psy, |
163 | enum power_supply_property psp, | |
164 | const union power_supply_propval *val); | |
165 | int (*property_is_writeable)(struct power_supply *psy, | |
166 | enum power_supply_property psp); | |
4a11b59d | 167 | void (*external_power_changed)(struct power_supply *psy); |
e5f5ccb6 | 168 | void (*set_charged)(struct power_supply *psy); |
4a11b59d AV |
169 | |
170 | /* For APM emulation, think legacy userspace. */ | |
171 | int use_for_apm; | |
172 | ||
173 | /* private */ | |
174 | struct device *dev; | |
175 | struct work_struct changed_work; | |
176 | ||
177 | #ifdef CONFIG_LEDS_TRIGGERS | |
178 | struct led_trigger *charging_full_trig; | |
179 | char *charging_full_trig_name; | |
180 | struct led_trigger *charging_trig; | |
181 | char *charging_trig_name; | |
182 | struct led_trigger *full_trig; | |
183 | char *full_trig_name; | |
184 | struct led_trigger *online_trig; | |
185 | char *online_trig_name; | |
6501f728 VK |
186 | struct led_trigger *charging_blink_full_solid_trig; |
187 | char *charging_blink_full_solid_trig_name; | |
4a11b59d AV |
188 | #endif |
189 | }; | |
190 | ||
191 | /* | |
192 | * This is recommended structure to specify static power supply parameters. | |
193 | * Generic one, parametrizable for different power supplies. Power supply | |
194 | * class itself does not use it, but that's what implementing most platform | |
195 | * drivers, should try reuse for consistency. | |
196 | */ | |
197 | ||
198 | struct power_supply_info { | |
199 | const char *name; | |
200 | int technology; | |
201 | int voltage_max_design; | |
202 | int voltage_min_design; | |
203 | int charge_full_design; | |
204 | int charge_empty_design; | |
205 | int energy_full_design; | |
206 | int energy_empty_design; | |
207 | int use_for_apm; | |
208 | }; | |
209 | ||
e5f5ccb6 | 210 | extern struct power_supply *power_supply_get_by_name(char *name); |
4a11b59d AV |
211 | extern void power_supply_changed(struct power_supply *psy); |
212 | extern int power_supply_am_i_supplied(struct power_supply *psy); | |
e5f5ccb6 | 213 | extern int power_supply_set_battery_charged(struct power_supply *psy); |
4a11b59d | 214 | |
0d4ed4e2 | 215 | #ifdef CONFIG_POWER_SUPPLY |
942ed161 MG |
216 | extern int power_supply_is_system_supplied(void); |
217 | #else | |
218 | static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } | |
219 | #endif | |
220 | ||
4a11b59d AV |
221 | extern int power_supply_register(struct device *parent, |
222 | struct power_supply *psy); | |
223 | extern void power_supply_unregister(struct power_supply *psy); | |
83516651 | 224 | extern int power_supply_powers(struct power_supply *psy, struct device *dev); |
4a11b59d AV |
225 | |
226 | /* For APM emulation, think legacy userspace. */ | |
227 | extern struct class *power_supply_class; | |
228 | ||
51d07566 RK |
229 | static inline bool power_supply_is_amp_property(enum power_supply_property psp) |
230 | { | |
231 | switch (psp) { | |
232 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: | |
233 | case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN: | |
234 | case POWER_SUPPLY_PROP_CHARGE_FULL: | |
235 | case POWER_SUPPLY_PROP_CHARGE_EMPTY: | |
236 | case POWER_SUPPLY_PROP_CHARGE_NOW: | |
237 | case POWER_SUPPLY_PROP_CHARGE_AVG: | |
238 | case POWER_SUPPLY_PROP_CHARGE_COUNTER: | |
239 | case POWER_SUPPLY_PROP_CURRENT_MAX: | |
240 | case POWER_SUPPLY_PROP_CURRENT_NOW: | |
241 | case POWER_SUPPLY_PROP_CURRENT_AVG: | |
242 | return 1; | |
243 | default: | |
244 | break; | |
245 | } | |
246 | ||
247 | return 0; | |
248 | } | |
249 | ||
250 | static inline bool power_supply_is_watt_property(enum power_supply_property psp) | |
251 | { | |
252 | switch (psp) { | |
253 | case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: | |
254 | case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN: | |
255 | case POWER_SUPPLY_PROP_ENERGY_FULL: | |
256 | case POWER_SUPPLY_PROP_ENERGY_EMPTY: | |
257 | case POWER_SUPPLY_PROP_ENERGY_NOW: | |
258 | case POWER_SUPPLY_PROP_ENERGY_AVG: | |
259 | case POWER_SUPPLY_PROP_VOLTAGE_MAX: | |
260 | case POWER_SUPPLY_PROP_VOLTAGE_MIN: | |
261 | case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: | |
262 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: | |
263 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
264 | case POWER_SUPPLY_PROP_VOLTAGE_AVG: | |
a2ebfe2f | 265 | case POWER_SUPPLY_PROP_VOLTAGE_OCV: |
35c9d267 | 266 | case POWER_SUPPLY_PROP_POWER_NOW: |
51d07566 RK |
267 | return 1; |
268 | default: | |
269 | break; | |
270 | } | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
4a11b59d | 275 | #endif /* __LINUX_POWER_SUPPLY_H__ */ |