| /* |
| * 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/workqueue.h> |
| #include <linux/leds.h> |
| #include <linux/spinlock.h> |
| #include <linux/notifier.h> |
| |
| struct device; |
| |
| /* |
| * 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 { |
| POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0, |
| POWER_SUPPLY_CHARGE_TYPE_NONE, |
| POWER_SUPPLY_CHARGE_TYPE_TRICKLE, |
| POWER_SUPPLY_CHARGE_TYPE_FAST, |
| }; |
| |
| enum { |
| 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, |
| POWER_SUPPLY_HEALTH_COLD, |
| POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE, |
| POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE, |
| }; |
| |
| 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, |
| POWER_SUPPLY_TECHNOLOGY_LiMn, |
| }; |
| |
| 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, |
| }; |
| |
| enum { |
| POWER_SUPPLY_SCOPE_UNKNOWN = 0, |
| POWER_SUPPLY_SCOPE_SYSTEM, |
| POWER_SUPPLY_SCOPE_DEVICE, |
| }; |
| |
| enum power_supply_property { |
| /* Properties of type `int' */ |
| POWER_SUPPLY_PROP_STATUS = 0, |
| POWER_SUPPLY_PROP_CHARGE_TYPE, |
| POWER_SUPPLY_PROP_HEALTH, |
| POWER_SUPPLY_PROP_PRESENT, |
| POWER_SUPPLY_PROP_ONLINE, |
| POWER_SUPPLY_PROP_AUTHENTIC, |
| POWER_SUPPLY_PROP_TECHNOLOGY, |
| POWER_SUPPLY_PROP_CYCLE_COUNT, |
| POWER_SUPPLY_PROP_VOLTAGE_MAX, |
| POWER_SUPPLY_PROP_VOLTAGE_MIN, |
| 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_VOLTAGE_OCV, |
| POWER_SUPPLY_PROP_CURRENT_MAX, |
| POWER_SUPPLY_PROP_CURRENT_NOW, |
| POWER_SUPPLY_PROP_CURRENT_AVG, |
| POWER_SUPPLY_PROP_POWER_NOW, |
| POWER_SUPPLY_PROP_POWER_AVG, |
| 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, |
| POWER_SUPPLY_PROP_CHARGE_COUNTER, |
| POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, |
| POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, |
| POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, |
| POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, |
| POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, |
| POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, |
| 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! */ |
| POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */ |
| POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */ |
| POWER_SUPPLY_PROP_CAPACITY_LEVEL, |
| POWER_SUPPLY_PROP_TEMP, |
| POWER_SUPPLY_PROP_TEMP_ALERT_MIN, |
| POWER_SUPPLY_PROP_TEMP_ALERT_MAX, |
| POWER_SUPPLY_PROP_TEMP_AMBIENT, |
| POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN, |
| POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX, |
| 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, |
| POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */ |
| POWER_SUPPLY_PROP_SCOPE, |
| /* Properties of type `const char *' */ |
| POWER_SUPPLY_PROP_MODEL_NAME, |
| POWER_SUPPLY_PROP_MANUFACTURER, |
| POWER_SUPPLY_PROP_SERIAL_NUMBER, |
| }; |
| |
| enum power_supply_type { |
| POWER_SUPPLY_TYPE_UNKNOWN = 0, |
| POWER_SUPPLY_TYPE_BATTERY, |
| POWER_SUPPLY_TYPE_UPS, |
| POWER_SUPPLY_TYPE_MAINS, |
| POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */ |
| POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */ |
| POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */ |
| POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */ |
| }; |
| |
| enum power_supply_notifier_events { |
| PSY_EVENT_PROP_CHANGED, |
| }; |
| |
| union power_supply_propval { |
| int intval; |
| const char *strval; |
| }; |
| |
| struct device_node; |
| |
| 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; |
| |
| char **supplied_from; |
| size_t num_supplies; |
| struct device_node *of_node; |
| |
| int (*get_property)(struct power_supply *psy, |
| enum power_supply_property psp, |
| union power_supply_propval *val); |
| 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); |
| void (*external_power_changed)(struct power_supply *psy); |
| void (*set_charged)(struct power_supply *psy); |
| |
| /* For APM emulation, think legacy userspace. */ |
| int use_for_apm; |
| |
| /* private */ |
| struct device *dev; |
| struct work_struct changed_work; |
| spinlock_t changed_lock; |
| bool changed; |
| #ifdef CONFIG_THERMAL |
| struct thermal_zone_device *tzd; |
| struct thermal_cooling_device *tcd; |
| #endif |
| |
| #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; |
| struct led_trigger *charging_blink_full_solid_trig; |
| char *charging_blink_full_solid_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; |
| }; |
| |
| extern struct atomic_notifier_head power_supply_notifier; |
| extern int power_supply_reg_notifier(struct notifier_block *nb); |
| extern void power_supply_unreg_notifier(struct notifier_block *nb); |
| extern struct power_supply *power_supply_get_by_name(const char *name); |
| #ifdef CONFIG_OF |
| extern struct power_supply *power_supply_get_by_phandle(struct device_node *np, |
| const char *property); |
| #else /* !CONFIG_OF */ |
| static inline struct power_supply * |
| power_supply_get_by_phandle(struct device_node *np, const char *property) |
| { return NULL; } |
| #endif /* CONFIG_OF */ |
| extern void power_supply_changed(struct power_supply *psy); |
| extern int power_supply_am_i_supplied(struct power_supply *psy); |
| extern int power_supply_set_battery_charged(struct power_supply *psy); |
| |
| #ifdef CONFIG_POWER_SUPPLY |
| extern int power_supply_is_system_supplied(void); |
| #else |
| static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } |
| #endif |
| |
| extern int power_supply_register(struct device *parent, |
| struct power_supply *psy); |
| extern int power_supply_register_no_ws(struct device *parent, |
| struct power_supply *psy); |
| extern void power_supply_unregister(struct power_supply *psy); |
| extern int power_supply_powers(struct power_supply *psy, struct device *dev); |
| |
| /* For APM emulation, think legacy userspace. */ |
| extern struct class *power_supply_class; |
| |
| static inline bool power_supply_is_amp_property(enum power_supply_property psp) |
| { |
| switch (psp) { |
| case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: |
| case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN: |
| case POWER_SUPPLY_PROP_CHARGE_FULL: |
| case POWER_SUPPLY_PROP_CHARGE_EMPTY: |
| case POWER_SUPPLY_PROP_CHARGE_NOW: |
| case POWER_SUPPLY_PROP_CHARGE_AVG: |
| case POWER_SUPPLY_PROP_CHARGE_COUNTER: |
| case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
| case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: |
| case POWER_SUPPLY_PROP_CURRENT_MAX: |
| case POWER_SUPPLY_PROP_CURRENT_NOW: |
| case POWER_SUPPLY_PROP_CURRENT_AVG: |
| return 1; |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static inline bool power_supply_is_watt_property(enum power_supply_property psp) |
| { |
| switch (psp) { |
| case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: |
| case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN: |
| case POWER_SUPPLY_PROP_ENERGY_FULL: |
| case POWER_SUPPLY_PROP_ENERGY_EMPTY: |
| case POWER_SUPPLY_PROP_ENERGY_NOW: |
| case POWER_SUPPLY_PROP_ENERGY_AVG: |
| case POWER_SUPPLY_PROP_VOLTAGE_MAX: |
| case POWER_SUPPLY_PROP_VOLTAGE_MIN: |
| case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: |
| case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: |
| case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| case POWER_SUPPLY_PROP_VOLTAGE_AVG: |
| case POWER_SUPPLY_PROP_VOLTAGE_OCV: |
| case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
| case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: |
| case POWER_SUPPLY_PROP_POWER_NOW: |
| return 1; |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| #endif /* __LINUX_POWER_SUPPLY_H__ */ |
