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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, |
a05be991 RP |
57 | POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE, |
58 | POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE, | |
4a11b59d AV |
59 | }; |
60 | ||
61 | enum { | |
62 | POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, | |
63 | POWER_SUPPLY_TECHNOLOGY_NiMH, | |
64 | POWER_SUPPLY_TECHNOLOGY_LION, | |
65 | POWER_SUPPLY_TECHNOLOGY_LIPO, | |
66 | POWER_SUPPLY_TECHNOLOGY_LiFe, | |
67 | POWER_SUPPLY_TECHNOLOGY_NiCd, | |
c7cc930f | 68 | POWER_SUPPLY_TECHNOLOGY_LiMn, |
4a11b59d AV |
69 | }; |
70 | ||
b294a290 AS |
71 | enum { |
72 | POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0, | |
73 | POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL, | |
74 | POWER_SUPPLY_CAPACITY_LEVEL_LOW, | |
75 | POWER_SUPPLY_CAPACITY_LEVEL_NORMAL, | |
76 | POWER_SUPPLY_CAPACITY_LEVEL_HIGH, | |
77 | POWER_SUPPLY_CAPACITY_LEVEL_FULL, | |
78 | }; | |
79 | ||
25a0bc2d JF |
80 | enum { |
81 | POWER_SUPPLY_SCOPE_UNKNOWN = 0, | |
82 | POWER_SUPPLY_SCOPE_SYSTEM, | |
83 | POWER_SUPPLY_SCOPE_DEVICE, | |
84 | }; | |
85 | ||
4a11b59d AV |
86 | enum power_supply_property { |
87 | /* Properties of type `int' */ | |
88 | POWER_SUPPLY_PROP_STATUS = 0, | |
ee8076ed | 89 | POWER_SUPPLY_PROP_CHARGE_TYPE, |
4a11b59d AV |
90 | POWER_SUPPLY_PROP_HEALTH, |
91 | POWER_SUPPLY_PROP_PRESENT, | |
92 | POWER_SUPPLY_PROP_ONLINE, | |
b1b56872 | 93 | POWER_SUPPLY_PROP_AUTHENTIC, |
4a11b59d | 94 | POWER_SUPPLY_PROP_TECHNOLOGY, |
c955fe8e | 95 | POWER_SUPPLY_PROP_CYCLE_COUNT, |
c7cc930f DES |
96 | POWER_SUPPLY_PROP_VOLTAGE_MAX, |
97 | POWER_SUPPLY_PROP_VOLTAGE_MIN, | |
4a11b59d AV |
98 | POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, |
99 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, | |
100 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
101 | POWER_SUPPLY_PROP_VOLTAGE_AVG, | |
a2ebfe2f | 102 | POWER_SUPPLY_PROP_VOLTAGE_OCV, |
fe3f6d09 | 103 | POWER_SUPPLY_PROP_CURRENT_MAX, |
4a11b59d AV |
104 | POWER_SUPPLY_PROP_CURRENT_NOW, |
105 | POWER_SUPPLY_PROP_CURRENT_AVG, | |
7faa144a AS |
106 | POWER_SUPPLY_PROP_POWER_NOW, |
107 | POWER_SUPPLY_PROP_POWER_AVG, | |
4a11b59d AV |
108 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, |
109 | POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, | |
110 | POWER_SUPPLY_PROP_CHARGE_FULL, | |
111 | POWER_SUPPLY_PROP_CHARGE_EMPTY, | |
112 | POWER_SUPPLY_PROP_CHARGE_NOW, | |
113 | POWER_SUPPLY_PROP_CHARGE_AVG, | |
8e552c36 | 114 | POWER_SUPPLY_PROP_CHARGE_COUNTER, |
3824c477 | 115 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, |
2815b786 | 116 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, |
3824c477 | 117 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, |
2815b786 | 118 | POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, |
ea2ce92e RP |
119 | POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, |
120 | POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, | |
4a11b59d AV |
121 | POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, |
122 | POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, | |
123 | POWER_SUPPLY_PROP_ENERGY_FULL, | |
124 | POWER_SUPPLY_PROP_ENERGY_EMPTY, | |
125 | POWER_SUPPLY_PROP_ENERGY_NOW, | |
126 | POWER_SUPPLY_PROP_ENERGY_AVG, | |
127 | POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ | |
e908c418 RP |
128 | POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */ |
129 | POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */ | |
b294a290 | 130 | POWER_SUPPLY_PROP_CAPACITY_LEVEL, |
4a11b59d | 131 | POWER_SUPPLY_PROP_TEMP, |
e908c418 RP |
132 | POWER_SUPPLY_PROP_TEMP_ALERT_MIN, |
133 | POWER_SUPPLY_PROP_TEMP_ALERT_MAX, | |
4a11b59d | 134 | POWER_SUPPLY_PROP_TEMP_AMBIENT, |
e908c418 RP |
135 | POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN, |
136 | POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX, | |
4a11b59d AV |
137 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, |
138 | POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, | |
139 | POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, | |
140 | POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, | |
5f487cd3 | 141 | POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */ |
25a0bc2d | 142 | POWER_SUPPLY_PROP_SCOPE, |
4a11b59d AV |
143 | /* Properties of type `const char *' */ |
144 | POWER_SUPPLY_PROP_MODEL_NAME, | |
145 | POWER_SUPPLY_PROP_MANUFACTURER, | |
7c2670bb | 146 | POWER_SUPPLY_PROP_SERIAL_NUMBER, |
4a11b59d AV |
147 | }; |
148 | ||
149 | enum power_supply_type { | |
9b887227 KM |
150 | POWER_SUPPLY_TYPE_UNKNOWN = 0, |
151 | POWER_SUPPLY_TYPE_BATTERY, | |
4a11b59d AV |
152 | POWER_SUPPLY_TYPE_UPS, |
153 | POWER_SUPPLY_TYPE_MAINS, | |
85efc8a1 HK |
154 | POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */ |
155 | POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */ | |
156 | POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */ | |
157 | POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */ | |
4a11b59d AV |
158 | }; |
159 | ||
160 | union power_supply_propval { | |
161 | int intval; | |
162 | const char *strval; | |
163 | }; | |
164 | ||
165 | struct power_supply { | |
166 | const char *name; | |
167 | enum power_supply_type type; | |
168 | enum power_supply_property *properties; | |
169 | size_t num_properties; | |
170 | ||
171 | char **supplied_to; | |
172 | size_t num_supplicants; | |
173 | ||
5e0848c6 RK |
174 | char **supplied_from; |
175 | size_t num_supplies; | |
f6e0b081 RK |
176 | #ifdef CONFIG_OF |
177 | struct device_node *of_node; | |
178 | #endif | |
5e0848c6 | 179 | |
4a11b59d AV |
180 | int (*get_property)(struct power_supply *psy, |
181 | enum power_supply_property psp, | |
182 | union power_supply_propval *val); | |
0011d2d4 DM |
183 | int (*set_property)(struct power_supply *psy, |
184 | enum power_supply_property psp, | |
185 | const union power_supply_propval *val); | |
186 | int (*property_is_writeable)(struct power_supply *psy, | |
187 | enum power_supply_property psp); | |
4a11b59d | 188 | void (*external_power_changed)(struct power_supply *psy); |
e5f5ccb6 | 189 | void (*set_charged)(struct power_supply *psy); |
4a11b59d AV |
190 | |
191 | /* For APM emulation, think legacy userspace. */ | |
192 | int use_for_apm; | |
193 | ||
194 | /* private */ | |
195 | struct device *dev; | |
196 | struct work_struct changed_work; | |
3be330bf JT |
197 | #ifdef CONFIG_THERMAL |
198 | struct thermal_zone_device *tzd; | |
952aeeb3 | 199 | struct thermal_cooling_device *tcd; |
3be330bf | 200 | #endif |
4a11b59d AV |
201 | |
202 | #ifdef CONFIG_LEDS_TRIGGERS | |
203 | struct led_trigger *charging_full_trig; | |
204 | char *charging_full_trig_name; | |
205 | struct led_trigger *charging_trig; | |
206 | char *charging_trig_name; | |
207 | struct led_trigger *full_trig; | |
208 | char *full_trig_name; | |
209 | struct led_trigger *online_trig; | |
210 | char *online_trig_name; | |
6501f728 VK |
211 | struct led_trigger *charging_blink_full_solid_trig; |
212 | char *charging_blink_full_solid_trig_name; | |
4a11b59d AV |
213 | #endif |
214 | }; | |
215 | ||
216 | /* | |
217 | * This is recommended structure to specify static power supply parameters. | |
218 | * Generic one, parametrizable for different power supplies. Power supply | |
219 | * class itself does not use it, but that's what implementing most platform | |
220 | * drivers, should try reuse for consistency. | |
221 | */ | |
222 | ||
223 | struct power_supply_info { | |
224 | const char *name; | |
225 | int technology; | |
226 | int voltage_max_design; | |
227 | int voltage_min_design; | |
228 | int charge_full_design; | |
229 | int charge_empty_design; | |
230 | int energy_full_design; | |
231 | int energy_empty_design; | |
232 | int use_for_apm; | |
233 | }; | |
234 | ||
9f3b795a | 235 | extern struct power_supply *power_supply_get_by_name(const char *name); |
4a11b59d AV |
236 | extern void power_supply_changed(struct power_supply *psy); |
237 | extern int power_supply_am_i_supplied(struct power_supply *psy); | |
e5f5ccb6 | 238 | extern int power_supply_set_battery_charged(struct power_supply *psy); |
4a11b59d | 239 | |
0d4ed4e2 | 240 | #ifdef CONFIG_POWER_SUPPLY |
942ed161 MG |
241 | extern int power_supply_is_system_supplied(void); |
242 | #else | |
243 | static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } | |
244 | #endif | |
245 | ||
4a11b59d AV |
246 | extern int power_supply_register(struct device *parent, |
247 | struct power_supply *psy); | |
248 | extern void power_supply_unregister(struct power_supply *psy); | |
83516651 | 249 | extern int power_supply_powers(struct power_supply *psy, struct device *dev); |
4a11b59d AV |
250 | |
251 | /* For APM emulation, think legacy userspace. */ | |
252 | extern struct class *power_supply_class; | |
253 | ||
51d07566 RK |
254 | static inline bool power_supply_is_amp_property(enum power_supply_property psp) |
255 | { | |
256 | switch (psp) { | |
257 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: | |
258 | case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN: | |
259 | case POWER_SUPPLY_PROP_CHARGE_FULL: | |
260 | case POWER_SUPPLY_PROP_CHARGE_EMPTY: | |
261 | case POWER_SUPPLY_PROP_CHARGE_NOW: | |
262 | case POWER_SUPPLY_PROP_CHARGE_AVG: | |
263 | case POWER_SUPPLY_PROP_CHARGE_COUNTER: | |
3824c477 | 264 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
2815b786 | 265 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: |
51d07566 RK |
266 | case POWER_SUPPLY_PROP_CURRENT_MAX: |
267 | case POWER_SUPPLY_PROP_CURRENT_NOW: | |
268 | case POWER_SUPPLY_PROP_CURRENT_AVG: | |
269 | return 1; | |
270 | default: | |
271 | break; | |
272 | } | |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
277 | static inline bool power_supply_is_watt_property(enum power_supply_property psp) | |
278 | { | |
279 | switch (psp) { | |
280 | case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: | |
281 | case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN: | |
282 | case POWER_SUPPLY_PROP_ENERGY_FULL: | |
283 | case POWER_SUPPLY_PROP_ENERGY_EMPTY: | |
284 | case POWER_SUPPLY_PROP_ENERGY_NOW: | |
285 | case POWER_SUPPLY_PROP_ENERGY_AVG: | |
286 | case POWER_SUPPLY_PROP_VOLTAGE_MAX: | |
287 | case POWER_SUPPLY_PROP_VOLTAGE_MIN: | |
288 | case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: | |
289 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: | |
290 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
291 | case POWER_SUPPLY_PROP_VOLTAGE_AVG: | |
a2ebfe2f | 292 | case POWER_SUPPLY_PROP_VOLTAGE_OCV: |
3824c477 | 293 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
2815b786 | 294 | case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: |
35c9d267 | 295 | case POWER_SUPPLY_PROP_POWER_NOW: |
51d07566 RK |
296 | return 1; |
297 | default: | |
298 | break; | |
299 | } | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
4a11b59d | 304 | #endif /* __LINUX_POWER_SUPPLY_H__ */ |