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include/linux/power_supply.h
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/* * Universal power supply monitor class * * Copyright © 2007 Anton Vorontsov <cbou@mail.ru> * Copyright © 2004 Szabolcs Gyurko * Copyright © 2003 Ian Molton <spyro@f2s.com> * * Modified: 2004, Oct Szabolcs Gyurko * * You may use this code as per GPL version 2 */ #ifndef __LINUX_POWER_SUPPLY_H__ #define __LINUX_POWER_SUPPLY_H__ #include <linux/device.h> #include <linux/workqueue.h> #include <linux/leds.h> /* * All voltages, currents, charges, energies, time and temperatures in uV, * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise * stated. It's driver's job to convert its raw values to units in which * this class operates. */ /* * For systems where the charger determines the maximum battery capacity * the min and max fields should be used to present these values to user * space. Unused/unknown fields will not appear in sysfs. */ enum { POWER_SUPPLY_STATUS_UNKNOWN = 0, POWER_SUPPLY_STATUS_CHARGING, POWER_SUPPLY_STATUS_DISCHARGING, POWER_SUPPLY_STATUS_NOT_CHARGING, POWER_SUPPLY_STATUS_FULL, }; enum { |
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POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0, POWER_SUPPLY_CHARGE_TYPE_NONE, POWER_SUPPLY_CHARGE_TYPE_TRICKLE, POWER_SUPPLY_CHARGE_TYPE_FAST, }; enum { |
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POWER_SUPPLY_HEALTH_UNKNOWN = 0, POWER_SUPPLY_HEALTH_GOOD, POWER_SUPPLY_HEALTH_OVERHEAT, POWER_SUPPLY_HEALTH_DEAD, POWER_SUPPLY_HEALTH_OVERVOLTAGE, POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, |
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POWER_SUPPLY_HEALTH_COLD, |
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}; enum { POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, POWER_SUPPLY_TECHNOLOGY_NiMH, POWER_SUPPLY_TECHNOLOGY_LION, POWER_SUPPLY_TECHNOLOGY_LIPO, POWER_SUPPLY_TECHNOLOGY_LiFe, POWER_SUPPLY_TECHNOLOGY_NiCd, |
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POWER_SUPPLY_TECHNOLOGY_LiMn, |
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}; |
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enum { POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0, POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL, POWER_SUPPLY_CAPACITY_LEVEL_LOW, POWER_SUPPLY_CAPACITY_LEVEL_NORMAL, POWER_SUPPLY_CAPACITY_LEVEL_HIGH, POWER_SUPPLY_CAPACITY_LEVEL_FULL, }; |
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enum power_supply_property { /* Properties of type `int' */ POWER_SUPPLY_PROP_STATUS = 0, |
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POWER_SUPPLY_PROP_CHARGE_TYPE, |
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POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_TECHNOLOGY, |
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POWER_SUPPLY_PROP_CYCLE_COUNT, |
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POWER_SUPPLY_PROP_VOLTAGE_MAX, POWER_SUPPLY_PROP_VOLTAGE_MIN, |
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POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_VOLTAGE_AVG, POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CURRENT_AVG, |
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POWER_SUPPLY_PROP_POWER_NOW, POWER_SUPPLY_PROP_POWER_AVG, |
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POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, POWER_SUPPLY_PROP_CHARGE_FULL, POWER_SUPPLY_PROP_CHARGE_EMPTY, POWER_SUPPLY_PROP_CHARGE_NOW, POWER_SUPPLY_PROP_CHARGE_AVG, |
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POWER_SUPPLY_PROP_CHARGE_COUNTER, |
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POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, POWER_SUPPLY_PROP_ENERGY_FULL, POWER_SUPPLY_PROP_ENERGY_EMPTY, POWER_SUPPLY_PROP_ENERGY_NOW, POWER_SUPPLY_PROP_ENERGY_AVG, POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ |
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POWER_SUPPLY_PROP_CAPACITY_LEVEL, |
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POWER_SUPPLY_PROP_TEMP, POWER_SUPPLY_PROP_TEMP_AMBIENT, POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, |
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POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */ |
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/* Properties of type `const char *' */ POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, |
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POWER_SUPPLY_PROP_SERIAL_NUMBER, |
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}; enum power_supply_type { POWER_SUPPLY_TYPE_BATTERY = 0, POWER_SUPPLY_TYPE_UPS, POWER_SUPPLY_TYPE_MAINS, POWER_SUPPLY_TYPE_USB, }; union power_supply_propval { int intval; const char *strval; }; struct power_supply { const char *name; enum power_supply_type type; enum power_supply_property *properties; size_t num_properties; char **supplied_to; size_t num_supplicants; int (*get_property)(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val); |
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int (*set_property)(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val); int (*property_is_writeable)(struct power_supply *psy, enum power_supply_property psp); |
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void (*external_power_changed)(struct power_supply *psy); |
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void (*set_charged)(struct power_supply *psy); |
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/* For APM emulation, think legacy userspace. */ int use_for_apm; /* private */ struct device *dev; struct work_struct changed_work; #ifdef CONFIG_LEDS_TRIGGERS struct led_trigger *charging_full_trig; char *charging_full_trig_name; struct led_trigger *charging_trig; char *charging_trig_name; struct led_trigger *full_trig; char *full_trig_name; struct led_trigger *online_trig; char *online_trig_name; #endif }; /* * This is recommended structure to specify static power supply parameters. * Generic one, parametrizable for different power supplies. Power supply * class itself does not use it, but that's what implementing most platform * drivers, should try reuse for consistency. */ struct power_supply_info { const char *name; int technology; int voltage_max_design; int voltage_min_design; int charge_full_design; int charge_empty_design; int energy_full_design; int energy_empty_design; int use_for_apm; }; |
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extern struct power_supply *power_supply_get_by_name(char *name); |
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extern void power_supply_changed(struct power_supply *psy); extern int power_supply_am_i_supplied(struct power_supply *psy); |
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extern int power_supply_set_battery_charged(struct power_supply *psy); |
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#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE) extern int power_supply_is_system_supplied(void); #else static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } #endif |
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extern int power_supply_register(struct device *parent, struct power_supply *psy); extern void power_supply_unregister(struct power_supply *psy); /* For APM emulation, think legacy userspace. */ extern struct class *power_supply_class; #endif /* __LINUX_POWER_SUPPLY_H__ */ |