diff options
Diffstat (limited to 'include/linux/power_supply.h')
| -rw-r--r-- | include/linux/power_supply.h | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h new file mode 100644 index 00000000..0ba8c97a --- /dev/null +++ b/include/linux/power_supply.h @@ -0,0 +1,342 @@ +/* + * 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/wakelock.h> +#include <linux/workqueue.h> +#include <linux/leds.h> +#include <linux/types.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, + POWER_SUPPLY_CHARGE_TYPE_SLOW, +}; + +enum { + POWER_SUPPLY_HEALTH_UNKNOWN = 0, + POWER_SUPPLY_HEALTH_GOOD, + POWER_SUPPLY_HEALTH_OVERHEAT, + POWER_SUPPLY_HEALTH_WARM, + POWER_SUPPLY_HEALTH_DEAD, + POWER_SUPPLY_HEALTH_OVERVOLTAGE, + POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, + POWER_SUPPLY_HEALTH_COLD, + POWER_SUPPLY_HEALTH_COOL, + POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE, + POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE, + POWER_SUPPLY_HEALTH_UNDERVOLTAGE, + POWER_SUPPLY_HEALTH_OVERHEATLIMIT, +}; + +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, + /* Local extensions */ + POWER_SUPPLY_PROP_USB_HC, + POWER_SUPPLY_PROP_USB_OTG, + POWER_SUPPLY_PROP_CHARGE_ENABLED, + /* Local extensions of type int64_t */ + POWER_SUPPLY_PROP_CHARGE_COUNTER_EXT, + /* Properties of type `const char *' */ + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_SERIAL_NUMBER, + POWER_SUPPLY_PROP_CHARGE_OTG_CONTROL, + POWER_SUPPLY_PROP_POWER_STATUS +}; + +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 */ + POWER_SUPPLY_TYPE_BMS, /* Battery Monitor System (8) */ + POWER_SUPPLY_TYPE_MISC, /* 9 */ + POWER_SUPPLY_TYPE_WIRELESS, /* 10 */ + POWER_SUPPLY_TYPE_CARDOCK, /* 11 */ + POWER_SUPPLY_TYPE_UARTOFF, /* 12 */ + POWER_SUPPLY_TYPE_OTG, /* 13 */ + POWER_SUPPLY_TYPE_LAN_HUB, /* 14 */ + POWER_SUPPLY_TYPE_MHL_500, /* 15 */ + POWER_SUPPLY_TYPE_MHL_900, /* 16 */ + POWER_SUPPLY_TYPE_MHL_1500, /* 17 */ + POWER_SUPPLY_TYPE_MHL_USB, /* 18 */ + POWER_SUPPLY_TYPE_SMART_OTG, /* 19 */ + POWER_SUPPLY_TYPE_SMART_NOTG, /* 20 */ + POWER_SUPPLY_TYPE_POWER_SHARING, /* power sharing cable(21) */ + POWER_SUPPLY_TYPE_HV_MAINS, /* 22 */ + POWER_SUPPLY_TYPE_WPC, + POWER_SUPPLY_TYPE_HV_PREPARE_MAINS, + POWER_SUPPLY_TYPE_MHL_USB_100, + POWER_SUPPLY_TYPE_MHL_2000, + POWER_SUPPLY_TYPE_WIRELESS_REMOVE, /* Always last value (23)*/ +}; + +union power_supply_propval { + int intval; + const char *strval; + int64_t int64val; +}; + +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; +#ifdef CONFIG_OF + struct device_node *of_node; +#endif + + 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 power_supply *power_supply_get_by_name(const char *name); +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 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__ */ |