2 * Universal power supply monitor class
4 * Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
5 * Copyright © 2004 Szabolcs Gyurko
6 * Copyright © 2003 Ian Molton <spyro@f2s.com>
8 * Modified: 2004, Oct Szabolcs Gyurko
10 * You may use this code as per GPL version 2
13 #ifndef __LINUX_POWER_SUPPLY_H__
14 #define __LINUX_POWER_SUPPLY_H__
16 #include <linux/workqueue.h>
17 #include <linux/leds.h>
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.
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.
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
,
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
,
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
,
56 POWER_SUPPLY_HEALTH_COLD
,
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
,
66 POWER_SUPPLY_TECHNOLOGY_LiMn
,
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
,
79 POWER_SUPPLY_SCOPE_UNKNOWN
= 0,
80 POWER_SUPPLY_SCOPE_SYSTEM
,
81 POWER_SUPPLY_SCOPE_DEVICE
,
84 enum power_supply_property
{
85 /* Properties of type `int' */
86 POWER_SUPPLY_PROP_STATUS
= 0,
87 POWER_SUPPLY_PROP_CHARGE_TYPE
,
88 POWER_SUPPLY_PROP_HEALTH
,
89 POWER_SUPPLY_PROP_PRESENT
,
90 POWER_SUPPLY_PROP_ONLINE
,
91 POWER_SUPPLY_PROP_TECHNOLOGY
,
92 POWER_SUPPLY_PROP_CYCLE_COUNT
,
93 POWER_SUPPLY_PROP_VOLTAGE_MAX
,
94 POWER_SUPPLY_PROP_VOLTAGE_MIN
,
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
,
99 POWER_SUPPLY_PROP_CURRENT_MAX
,
100 POWER_SUPPLY_PROP_CURRENT_NOW
,
101 POWER_SUPPLY_PROP_CURRENT_AVG
,
102 POWER_SUPPLY_PROP_POWER_NOW
,
103 POWER_SUPPLY_PROP_POWER_AVG
,
104 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN
,
105 POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN
,
106 POWER_SUPPLY_PROP_CHARGE_FULL
,
107 POWER_SUPPLY_PROP_CHARGE_EMPTY
,
108 POWER_SUPPLY_PROP_CHARGE_NOW
,
109 POWER_SUPPLY_PROP_CHARGE_AVG
,
110 POWER_SUPPLY_PROP_CHARGE_COUNTER
,
111 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN
,
112 POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN
,
113 POWER_SUPPLY_PROP_ENERGY_FULL
,
114 POWER_SUPPLY_PROP_ENERGY_EMPTY
,
115 POWER_SUPPLY_PROP_ENERGY_NOW
,
116 POWER_SUPPLY_PROP_ENERGY_AVG
,
117 POWER_SUPPLY_PROP_CAPACITY
, /* in percents! */
118 POWER_SUPPLY_PROP_CAPACITY_LEVEL
,
119 POWER_SUPPLY_PROP_TEMP
,
120 POWER_SUPPLY_PROP_TEMP_AMBIENT
,
121 POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW
,
122 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG
,
123 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW
,
124 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG
,
125 POWER_SUPPLY_PROP_TYPE
, /* use power_supply.type instead */
126 POWER_SUPPLY_PROP_SCOPE
,
127 /* Properties of type `const char *' */
128 POWER_SUPPLY_PROP_MODEL_NAME
,
129 POWER_SUPPLY_PROP_MANUFACTURER
,
130 POWER_SUPPLY_PROP_SERIAL_NUMBER
,
133 enum power_supply_type
{
134 POWER_SUPPLY_TYPE_UNKNOWN
= 0,
135 POWER_SUPPLY_TYPE_BATTERY
,
136 POWER_SUPPLY_TYPE_UPS
,
137 POWER_SUPPLY_TYPE_MAINS
,
138 POWER_SUPPLY_TYPE_USB
, /* Standard Downstream Port */
139 POWER_SUPPLY_TYPE_USB_DCP
, /* Dedicated Charging Port */
140 POWER_SUPPLY_TYPE_USB_CDP
, /* Charging Downstream Port */
141 POWER_SUPPLY_TYPE_USB_ACA
, /* Accessory Charger Adapters */
144 union power_supply_propval
{
149 struct power_supply
{
151 enum power_supply_type type
;
152 enum power_supply_property
*properties
;
153 size_t num_properties
;
156 size_t num_supplicants
;
158 int (*get_property
)(struct power_supply
*psy
,
159 enum power_supply_property psp
,
160 union power_supply_propval
*val
);
161 int (*set_property
)(struct power_supply
*psy
,
162 enum power_supply_property psp
,
163 const union power_supply_propval
*val
);
164 int (*property_is_writeable
)(struct power_supply
*psy
,
165 enum power_supply_property psp
);
166 void (*external_power_changed
)(struct power_supply
*psy
);
167 void (*set_charged
)(struct power_supply
*psy
);
169 /* For APM emulation, think legacy userspace. */
174 struct work_struct changed_work
;
176 #ifdef CONFIG_LEDS_TRIGGERS
177 struct led_trigger
*charging_full_trig
;
178 char *charging_full_trig_name
;
179 struct led_trigger
*charging_trig
;
180 char *charging_trig_name
;
181 struct led_trigger
*full_trig
;
182 char *full_trig_name
;
183 struct led_trigger
*online_trig
;
184 char *online_trig_name
;
185 struct led_trigger
*charging_blink_full_solid_trig
;
186 char *charging_blink_full_solid_trig_name
;
191 * This is recommended structure to specify static power supply parameters.
192 * Generic one, parametrizable for different power supplies. Power supply
193 * class itself does not use it, but that's what implementing most platform
194 * drivers, should try reuse for consistency.
197 struct power_supply_info
{
200 int voltage_max_design
;
201 int voltage_min_design
;
202 int charge_full_design
;
203 int charge_empty_design
;
204 int energy_full_design
;
205 int energy_empty_design
;
209 extern struct power_supply
*power_supply_get_by_name(char *name
);
210 extern void power_supply_changed(struct power_supply
*psy
);
211 extern int power_supply_am_i_supplied(struct power_supply
*psy
);
212 extern int power_supply_set_battery_charged(struct power_supply
*psy
);
214 #if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
215 extern int power_supply_is_system_supplied(void);
217 static inline int power_supply_is_system_supplied(void) { return -ENOSYS
; }
220 extern int power_supply_register(struct device
*parent
,
221 struct power_supply
*psy
);
222 extern void power_supply_unregister(struct power_supply
*psy
);
223 extern int power_supply_powers(struct power_supply
*psy
, struct device
*dev
);
225 /* For APM emulation, think legacy userspace. */
226 extern struct class *power_supply_class
;
228 static inline bool power_supply_is_amp_property(enum power_supply_property psp
)
231 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN
:
232 case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN
:
233 case POWER_SUPPLY_PROP_CHARGE_FULL
:
234 case POWER_SUPPLY_PROP_CHARGE_EMPTY
:
235 case POWER_SUPPLY_PROP_CHARGE_NOW
:
236 case POWER_SUPPLY_PROP_CHARGE_AVG
:
237 case POWER_SUPPLY_PROP_CHARGE_COUNTER
:
238 case POWER_SUPPLY_PROP_CURRENT_MAX
:
239 case POWER_SUPPLY_PROP_CURRENT_NOW
:
240 case POWER_SUPPLY_PROP_CURRENT_AVG
:
249 static inline bool power_supply_is_watt_property(enum power_supply_property psp
)
252 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN
:
253 case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN
:
254 case POWER_SUPPLY_PROP_ENERGY_FULL
:
255 case POWER_SUPPLY_PROP_ENERGY_EMPTY
:
256 case POWER_SUPPLY_PROP_ENERGY_NOW
:
257 case POWER_SUPPLY_PROP_ENERGY_AVG
:
258 case POWER_SUPPLY_PROP_VOLTAGE_MAX
:
259 case POWER_SUPPLY_PROP_VOLTAGE_MIN
:
260 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN
:
261 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN
:
262 case POWER_SUPPLY_PROP_VOLTAGE_NOW
:
263 case POWER_SUPPLY_PROP_VOLTAGE_AVG
:
264 case POWER_SUPPLY_PROP_POWER_NOW
:
273 #endif /* __LINUX_POWER_SUPPLY_H__ */