8efe444038
The CAPACITY_LEVEL stuff defines various levels of charge; however, what is the difference between them? What differentiates between HIGH and NORMAL, LOW and CRITICAL, etc? As it appears that these are fairly arbitrary, we end up making such policy decisions in the kernel (or in hardware). This is the sort of decision that should be made in userspace, not in the kernel. If the hardware does not support _CAPACITY and it cannot be easily calculated, then perhaps the driver should register a custom CAPACITY_LEVEL attribute; however, userspace should not become accustomed to looking for such a thing, and we should certainly not encourage drivers to provide CAPACITY_LEVEL stubs. The following removes support for POWER_SUPPLY_PROP_CAPACITY_LEVEL. The OLPC battery driver is the only driver making use of this, so it's removed from there as well. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
170 lines
4.5 KiB
C
170 lines
4.5 KiB
C
/*
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* Universal power supply monitor class
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*
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* Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
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* Copyright © 2004 Szabolcs Gyurko
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* Copyright © 2003 Ian Molton <spyro@f2s.com>
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*
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* Modified: 2004, Oct Szabolcs Gyurko
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*
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* You may use this code as per GPL version 2
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*/
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#ifndef __LINUX_POWER_SUPPLY_H__
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#define __LINUX_POWER_SUPPLY_H__
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#include <linux/device.h>
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#include <linux/workqueue.h>
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#include <linux/leds.h>
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/*
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* All voltages, currents, charges, energies, time and temperatures in uV,
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* µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
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* stated. It's driver's job to convert its raw values to units in which
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* this class operates.
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*/
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/*
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* For systems where the charger determines the maximum battery capacity
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* the min and max fields should be used to present these values to user
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* space. Unused/unknown fields will not appear in sysfs.
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*/
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enum {
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POWER_SUPPLY_STATUS_UNKNOWN = 0,
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POWER_SUPPLY_STATUS_CHARGING,
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POWER_SUPPLY_STATUS_DISCHARGING,
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POWER_SUPPLY_STATUS_NOT_CHARGING,
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POWER_SUPPLY_STATUS_FULL,
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};
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enum {
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POWER_SUPPLY_HEALTH_UNKNOWN = 0,
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POWER_SUPPLY_HEALTH_GOOD,
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POWER_SUPPLY_HEALTH_OVERHEAT,
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POWER_SUPPLY_HEALTH_DEAD,
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POWER_SUPPLY_HEALTH_OVERVOLTAGE,
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POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
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};
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enum {
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POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
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POWER_SUPPLY_TECHNOLOGY_NiMH,
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POWER_SUPPLY_TECHNOLOGY_LION,
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POWER_SUPPLY_TECHNOLOGY_LIPO,
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POWER_SUPPLY_TECHNOLOGY_LiFe,
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POWER_SUPPLY_TECHNOLOGY_NiCd,
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};
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enum power_supply_property {
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/* Properties of type `int' */
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POWER_SUPPLY_PROP_STATUS = 0,
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POWER_SUPPLY_PROP_HEALTH,
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POWER_SUPPLY_PROP_PRESENT,
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POWER_SUPPLY_PROP_ONLINE,
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POWER_SUPPLY_PROP_TECHNOLOGY,
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POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
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POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
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POWER_SUPPLY_PROP_VOLTAGE_NOW,
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POWER_SUPPLY_PROP_VOLTAGE_AVG,
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POWER_SUPPLY_PROP_CURRENT_NOW,
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POWER_SUPPLY_PROP_CURRENT_AVG,
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POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
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POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
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POWER_SUPPLY_PROP_CHARGE_FULL,
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POWER_SUPPLY_PROP_CHARGE_EMPTY,
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POWER_SUPPLY_PROP_CHARGE_NOW,
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POWER_SUPPLY_PROP_CHARGE_AVG,
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POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
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POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
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POWER_SUPPLY_PROP_ENERGY_FULL,
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POWER_SUPPLY_PROP_ENERGY_EMPTY,
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POWER_SUPPLY_PROP_ENERGY_NOW,
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POWER_SUPPLY_PROP_ENERGY_AVG,
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POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
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POWER_SUPPLY_PROP_TEMP,
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POWER_SUPPLY_PROP_TEMP_AMBIENT,
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POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
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POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
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POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
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POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
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/* Properties of type `const char *' */
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POWER_SUPPLY_PROP_MODEL_NAME,
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POWER_SUPPLY_PROP_MANUFACTURER,
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};
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enum power_supply_type {
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POWER_SUPPLY_TYPE_BATTERY = 0,
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POWER_SUPPLY_TYPE_UPS,
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POWER_SUPPLY_TYPE_MAINS,
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POWER_SUPPLY_TYPE_USB,
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};
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union power_supply_propval {
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int intval;
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const char *strval;
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};
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struct power_supply {
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const char *name;
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enum power_supply_type type;
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enum power_supply_property *properties;
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size_t num_properties;
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char **supplied_to;
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size_t num_supplicants;
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int (*get_property)(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val);
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void (*external_power_changed)(struct power_supply *psy);
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/* For APM emulation, think legacy userspace. */
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int use_for_apm;
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/* private */
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struct device *dev;
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struct work_struct changed_work;
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#ifdef CONFIG_LEDS_TRIGGERS
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struct led_trigger *charging_full_trig;
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char *charging_full_trig_name;
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struct led_trigger *charging_trig;
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char *charging_trig_name;
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struct led_trigger *full_trig;
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char *full_trig_name;
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struct led_trigger *online_trig;
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char *online_trig_name;
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#endif
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};
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/*
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* This is recommended structure to specify static power supply parameters.
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* Generic one, parametrizable for different power supplies. Power supply
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* class itself does not use it, but that's what implementing most platform
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* drivers, should try reuse for consistency.
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*/
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struct power_supply_info {
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const char *name;
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int technology;
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int voltage_max_design;
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int voltage_min_design;
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int charge_full_design;
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int charge_empty_design;
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int energy_full_design;
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int energy_empty_design;
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int use_for_apm;
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};
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extern void power_supply_changed(struct power_supply *psy);
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extern int power_supply_am_i_supplied(struct power_supply *psy);
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extern int power_supply_register(struct device *parent,
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struct power_supply *psy);
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extern void power_supply_unregister(struct power_supply *psy);
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/* For APM emulation, think legacy userspace. */
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extern struct class *power_supply_class;
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#endif /* __LINUX_POWER_SUPPLY_H__ */
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