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![Crag Wang](/assets/img/avatar_default.png)
This is a long life mode set in the factory for extended warranty battery, the power charging rate is customized so that battery at work last longer. Presently switching to a different battery charging mode is through EC PID 0x0710 to configure the battery firmware, this operation will be blocked by EC with failure code 0x01 when PLL mode is already in use. Signed-off-by: Crag Wang <crag.wang@dell.com> Reviewed-by: Mario Limonciello <mario.limonciello@dell.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
521 lines
17 KiB
C
521 lines
17 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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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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#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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#include <linux/spinlock.h>
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#include <linux/notifier.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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/* What algorithm is the charger using? */
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enum {
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POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
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POWER_SUPPLY_CHARGE_TYPE_NONE,
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POWER_SUPPLY_CHARGE_TYPE_TRICKLE, /* slow speed */
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POWER_SUPPLY_CHARGE_TYPE_FAST, /* fast speed */
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POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */
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POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */
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POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */
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POWER_SUPPLY_CHARGE_TYPE_LONGLIFE, /* slow speed, longer life */
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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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POWER_SUPPLY_HEALTH_COLD,
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POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
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POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
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POWER_SUPPLY_HEALTH_OVERCURRENT,
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POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
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POWER_SUPPLY_HEALTH_WARM,
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POWER_SUPPLY_HEALTH_COOL,
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POWER_SUPPLY_HEALTH_HOT,
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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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POWER_SUPPLY_TECHNOLOGY_LiMn,
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};
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enum {
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POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
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POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
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POWER_SUPPLY_CAPACITY_LEVEL_LOW,
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POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
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POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
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POWER_SUPPLY_CAPACITY_LEVEL_FULL,
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};
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enum {
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POWER_SUPPLY_SCOPE_UNKNOWN = 0,
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POWER_SUPPLY_SCOPE_SYSTEM,
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POWER_SUPPLY_SCOPE_DEVICE,
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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_CHARGE_TYPE,
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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_AUTHENTIC,
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POWER_SUPPLY_PROP_TECHNOLOGY,
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POWER_SUPPLY_PROP_CYCLE_COUNT,
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POWER_SUPPLY_PROP_VOLTAGE_MAX,
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POWER_SUPPLY_PROP_VOLTAGE_MIN,
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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_VOLTAGE_OCV,
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POWER_SUPPLY_PROP_VOLTAGE_BOOT,
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POWER_SUPPLY_PROP_CURRENT_MAX,
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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_CURRENT_BOOT,
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POWER_SUPPLY_PROP_POWER_NOW,
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POWER_SUPPLY_PROP_POWER_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_CHARGE_COUNTER,
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
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POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
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POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
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POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
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POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
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POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
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POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
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POWER_SUPPLY_PROP_INPUT_POWER_LIMIT,
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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_CAPACITY_ALERT_MIN, /* in percents! */
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POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
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POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN, /* in percents! */
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POWER_SUPPLY_PROP_CAPACITY_LEVEL,
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POWER_SUPPLY_PROP_TEMP,
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POWER_SUPPLY_PROP_TEMP_MAX,
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POWER_SUPPLY_PROP_TEMP_MIN,
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POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
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POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
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POWER_SUPPLY_PROP_TEMP_AMBIENT,
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POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
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POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
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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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POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
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POWER_SUPPLY_PROP_USB_TYPE,
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POWER_SUPPLY_PROP_SCOPE,
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POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
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POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
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POWER_SUPPLY_PROP_CALIBRATE,
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POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
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POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
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POWER_SUPPLY_PROP_MANUFACTURE_DAY,
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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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POWER_SUPPLY_PROP_SERIAL_NUMBER,
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};
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enum power_supply_type {
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POWER_SUPPLY_TYPE_UNKNOWN = 0,
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POWER_SUPPLY_TYPE_BATTERY,
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POWER_SUPPLY_TYPE_UPS,
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POWER_SUPPLY_TYPE_MAINS,
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POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */
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POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */
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POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */
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POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */
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POWER_SUPPLY_TYPE_USB_TYPE_C, /* Type C Port */
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POWER_SUPPLY_TYPE_USB_PD, /* Power Delivery Port */
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POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */
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POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
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};
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enum power_supply_usb_type {
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POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
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POWER_SUPPLY_USB_TYPE_SDP, /* Standard Downstream Port */
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POWER_SUPPLY_USB_TYPE_DCP, /* Dedicated Charging Port */
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POWER_SUPPLY_USB_TYPE_CDP, /* Charging Downstream Port */
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POWER_SUPPLY_USB_TYPE_ACA, /* Accessory Charger Adapters */
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POWER_SUPPLY_USB_TYPE_C, /* Type C Port */
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POWER_SUPPLY_USB_TYPE_PD, /* Power Delivery Port */
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POWER_SUPPLY_USB_TYPE_PD_DRP, /* PD Dual Role Port */
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POWER_SUPPLY_USB_TYPE_PD_PPS, /* PD Programmable Power Supply */
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POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
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};
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enum power_supply_notifier_events {
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PSY_EVENT_PROP_CHANGED,
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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 device_node;
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struct power_supply;
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/* Run-time specific power supply configuration */
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struct power_supply_config {
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struct device_node *of_node;
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struct fwnode_handle *fwnode;
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/* Driver private data */
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void *drv_data;
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/* Device specific sysfs attributes */
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const struct attribute_group **attr_grp;
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char **supplied_to;
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size_t num_supplicants;
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};
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/* Description of power supply */
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struct power_supply_desc {
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const char *name;
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enum power_supply_type type;
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const enum power_supply_usb_type *usb_types;
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size_t num_usb_types;
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const enum power_supply_property *properties;
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size_t num_properties;
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/*
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* Functions for drivers implementing power supply class.
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* These shouldn't be called directly by other drivers for accessing
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* this power supply. Instead use power_supply_*() functions (for
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* example power_supply_get_property()).
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*/
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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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int (*set_property)(struct power_supply *psy,
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enum power_supply_property psp,
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const union power_supply_propval *val);
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/*
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* property_is_writeable() will be called during registration
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* of power supply. If this happens during device probe then it must
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* not access internal data of device (because probe did not end).
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*/
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int (*property_is_writeable)(struct power_supply *psy,
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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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/*
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* Set if thermal zone should not be created for this power supply.
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* For example for virtual supplies forwarding calls to actual
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* sensors or other supplies.
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*/
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bool no_thermal;
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/* For APM emulation, think legacy userspace. */
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int use_for_apm;
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};
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struct power_supply {
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const struct power_supply_desc *desc;
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char **supplied_to;
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size_t num_supplicants;
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char **supplied_from;
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size_t num_supplies;
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struct device_node *of_node;
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/* Driver private data */
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void *drv_data;
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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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struct delayed_work deferred_register_work;
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spinlock_t changed_lock;
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bool changed;
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bool initialized;
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bool removing;
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atomic_t use_cnt;
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#ifdef CONFIG_THERMAL
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struct thermal_zone_device *tzd;
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struct thermal_cooling_device *tcd;
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#endif
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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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struct led_trigger *charging_blink_full_solid_trig;
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char *charging_blink_full_solid_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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struct power_supply_battery_ocv_table {
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int ocv; /* microVolts */
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int capacity; /* percent */
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};
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struct power_supply_resistance_temp_table {
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int temp; /* celsius */
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int resistance; /* internal resistance percent */
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};
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#define POWER_SUPPLY_OCV_TEMP_MAX 20
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/*
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* This is the recommended struct to manage static battery parameters,
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* populated by power_supply_get_battery_info(). Most platform drivers should
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* use these for consistency.
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* Its field names must correspond to elements in enum power_supply_property.
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* The default field value is -EINVAL.
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* Power supply class itself doesn't use this.
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*/
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struct power_supply_battery_info {
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int energy_full_design_uwh; /* microWatt-hours */
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int charge_full_design_uah; /* microAmp-hours */
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int voltage_min_design_uv; /* microVolts */
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int voltage_max_design_uv; /* microVolts */
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int tricklecharge_current_ua; /* microAmps */
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int precharge_current_ua; /* microAmps */
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int precharge_voltage_max_uv; /* microVolts */
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int charge_term_current_ua; /* microAmps */
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int charge_restart_voltage_uv; /* microVolts */
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int overvoltage_limit_uv; /* microVolts */
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int constant_charge_current_max_ua; /* microAmps */
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int constant_charge_voltage_max_uv; /* microVolts */
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int factory_internal_resistance_uohm; /* microOhms */
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int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
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struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
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int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
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struct power_supply_resistance_temp_table *resist_table;
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int resist_table_size;
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};
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extern struct atomic_notifier_head power_supply_notifier;
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extern int power_supply_reg_notifier(struct notifier_block *nb);
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extern void power_supply_unreg_notifier(struct notifier_block *nb);
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extern struct power_supply *power_supply_get_by_name(const char *name);
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extern void power_supply_put(struct power_supply *psy);
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#ifdef CONFIG_OF
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extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
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const char *property);
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extern struct power_supply *devm_power_supply_get_by_phandle(
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struct device *dev, const char *property);
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#else /* !CONFIG_OF */
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static inline struct power_supply *
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power_supply_get_by_phandle(struct device_node *np, const char *property)
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{ return NULL; }
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static inline struct power_supply *
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devm_power_supply_get_by_phandle(struct device *dev, const char *property)
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{ return NULL; }
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#endif /* CONFIG_OF */
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extern int power_supply_get_battery_info(struct power_supply *psy,
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struct power_supply_battery_info *info);
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extern void power_supply_put_battery_info(struct power_supply *psy,
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struct power_supply_battery_info *info);
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extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
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int table_len, int ocv);
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extern struct power_supply_battery_ocv_table *
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power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
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int temp, int *table_len);
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extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
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int ocv, int temp);
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extern int
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power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
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int table_len, int temp);
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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_set_input_current_limit_from_supplier(
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struct power_supply *psy);
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extern int power_supply_set_battery_charged(struct power_supply *psy);
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#ifdef CONFIG_POWER_SUPPLY
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extern int power_supply_is_system_supplied(void);
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#else
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static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
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#endif
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extern int power_supply_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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extern int power_supply_set_property(struct power_supply *psy,
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enum power_supply_property psp,
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const union power_supply_propval *val);
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extern int power_supply_property_is_writeable(struct power_supply *psy,
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enum power_supply_property psp);
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extern void power_supply_external_power_changed(struct power_supply *psy);
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extern struct power_supply *__must_check
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power_supply_register(struct device *parent,
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const struct power_supply_desc *desc,
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const struct power_supply_config *cfg);
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extern struct power_supply *__must_check
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power_supply_register_no_ws(struct device *parent,
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const struct power_supply_desc *desc,
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const struct power_supply_config *cfg);
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extern struct power_supply *__must_check
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devm_power_supply_register(struct device *parent,
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const struct power_supply_desc *desc,
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const struct power_supply_config *cfg);
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extern struct power_supply *__must_check
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devm_power_supply_register_no_ws(struct device *parent,
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const struct power_supply_desc *desc,
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const struct power_supply_config *cfg);
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extern void power_supply_unregister(struct power_supply *psy);
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extern int power_supply_powers(struct power_supply *psy, struct device *dev);
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#define to_power_supply(device) container_of(device, struct power_supply, dev)
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extern void *power_supply_get_drvdata(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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static inline bool power_supply_is_amp_property(enum power_supply_property psp)
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{
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switch (psp) {
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case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
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case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
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case POWER_SUPPLY_PROP_CHARGE_FULL:
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case POWER_SUPPLY_PROP_CHARGE_EMPTY:
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case POWER_SUPPLY_PROP_CHARGE_NOW:
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case POWER_SUPPLY_PROP_CHARGE_AVG:
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case POWER_SUPPLY_PROP_CHARGE_COUNTER:
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case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
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case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
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case POWER_SUPPLY_PROP_CURRENT_MAX:
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case POWER_SUPPLY_PROP_CURRENT_NOW:
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case POWER_SUPPLY_PROP_CURRENT_AVG:
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case POWER_SUPPLY_PROP_CURRENT_BOOT:
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return 1;
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default:
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break;
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}
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return 0;
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}
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static inline bool power_supply_is_watt_property(enum power_supply_property psp)
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{
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switch (psp) {
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case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
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case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
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case POWER_SUPPLY_PROP_ENERGY_FULL:
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case POWER_SUPPLY_PROP_ENERGY_EMPTY:
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case POWER_SUPPLY_PROP_ENERGY_NOW:
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case POWER_SUPPLY_PROP_ENERGY_AVG:
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case POWER_SUPPLY_PROP_VOLTAGE_MAX:
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case POWER_SUPPLY_PROP_VOLTAGE_MIN:
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case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
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case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
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case POWER_SUPPLY_PROP_VOLTAGE_NOW:
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case POWER_SUPPLY_PROP_VOLTAGE_AVG:
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case POWER_SUPPLY_PROP_VOLTAGE_OCV:
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case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
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case POWER_SUPPLY_PROP_POWER_NOW:
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return 1;
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default:
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break;
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}
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return 0;
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}
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#ifdef CONFIG_POWER_SUPPLY_HWMON
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int power_supply_add_hwmon_sysfs(struct power_supply *psy);
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void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
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#else
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static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
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{
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return 0;
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}
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static inline
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void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
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#endif
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#endif /* __LINUX_POWER_SUPPLY_H__ */
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