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