diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/power_supply.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h new file mode 100644 index 00000000000..606c0957997 --- /dev/null +++ b/include/linux/power_supply.h @@ -0,0 +1,180 @@ +/* + * 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 { + 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, +}; + +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, +}; + +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_property { + /* Properties of type `int' */ + POWER_SUPPLY_PROP_STATUS = 0, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_TECHNOLOGY, + 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, + 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_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_LEVEL, + 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, + /* Properties of type `const char *' */ + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, +}; + +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); + void (*external_power_changed)(struct power_supply *psy); + + /* 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; +}; + +extern void power_supply_changed(struct power_supply *psy); +extern int power_supply_am_i_supplied(struct power_supply *psy); + +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__ */ |