[mirror_ubuntu-eoan-kernel.git] / include / linux / power_supply.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  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
 */

#ifndef __LINUX_POWER_SUPPLY_H__
#define __LINUX_POWER_SUPPLY_H__

#include <linux/device.h>
#include <linux/workqueue.h>
#include <linux/leds.h>
#include <linux/spinlock.h>
#include <linux/notifier.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,
};

/* What algorithm is the charger using? */
enum {
	POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
	POWER_SUPPLY_CHARGE_TYPE_NONE,
	POWER_SUPPLY_CHARGE_TYPE_TRICKLE,	/* slow speed */
	POWER_SUPPLY_CHARGE_TYPE_FAST,		/* fast speed */
	POWER_SUPPLY_CHARGE_TYPE_STANDARD,	/* normal speed */
	POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE,	/* dynamically adjusted speed */
	POWER_SUPPLY_CHARGE_TYPE_CUSTOM,	/* use CHARGE_CONTROL_* props */
};

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,
	POWER_SUPPLY_HEALTH_OVERCURRENT,
};

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_VOLTAGE_BOOT,
	POWER_SUPPLY_PROP_CURRENT_MAX,
	POWER_SUPPLY_PROP_CURRENT_NOW,
	POWER_SUPPLY_PROP_CURRENT_AVG,
	POWER_SUPPLY_PROP_CURRENT_BOOT,
	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_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
	POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
	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_MAX,
	POWER_SUPPLY_PROP_TEMP_MIN,
	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_USB_TYPE,
	POWER_SUPPLY_PROP_SCOPE,
	POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
	POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
	POWER_SUPPLY_PROP_CALIBRATE,
	/* 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 */
	POWER_SUPPLY_TYPE_USB_TYPE_C,		/* Type C Port */
	POWER_SUPPLY_TYPE_USB_PD,		/* Power Delivery Port */
	POWER_SUPPLY_TYPE_USB_PD_DRP,		/* PD Dual Role Port */
	POWER_SUPPLY_TYPE_APPLE_BRICK_ID,	/* Apple Charging Method */
};

enum power_supply_usb_type {
	POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
	POWER_SUPPLY_USB_TYPE_SDP,		/* Standard Downstream Port */
	POWER_SUPPLY_USB_TYPE_DCP,		/* Dedicated Charging Port */
	POWER_SUPPLY_USB_TYPE_CDP,		/* Charging Downstream Port */
	POWER_SUPPLY_USB_TYPE_ACA,		/* Accessory Charger Adapters */
	POWER_SUPPLY_USB_TYPE_C,		/* Type C Port */
	POWER_SUPPLY_USB_TYPE_PD,		/* Power Delivery Port */
	POWER_SUPPLY_USB_TYPE_PD_DRP,		/* PD Dual Role Port */
	POWER_SUPPLY_USB_TYPE_PD_PPS,		/* PD Programmable Power Supply */
	POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID,	/* Apple Charging Method */
};

enum power_supply_notifier_events {
	PSY_EVENT_PROP_CHANGED,
};

union power_supply_propval {
	int intval;
	const char *strval;
};

struct device_node;
struct power_supply;

/* Run-time specific power supply configuration */
struct power_supply_config {
	struct device_node *of_node;
	struct fwnode_handle *fwnode;

	/* Driver private data */
	void *drv_data;

	/* Device specific sysfs attributes */
	const struct attribute_group **attr_grp;

	char **supplied_to;
	size_t num_supplicants;
};

/* Description of power supply */
struct power_supply_desc {
	const char *name;
	enum power_supply_type type;
	enum power_supply_usb_type *usb_types;
	size_t num_usb_types;
	enum power_supply_property *properties;
	size_t num_properties;

	/*
	 * Functions for drivers implementing power supply class.
	 * These shouldn't be called directly by other drivers for accessing
	 * this power supply. Instead use power_supply_*() functions (for
	 * example power_supply_get_property()).
	 */
	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);
	/*
	 * property_is_writeable() will be called during registration
	 * of power supply. If this happens during device probe then it must
	 * not access internal data of device (because probe did not end).
	 */
	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);

	/*
	 * Set if thermal zone should not be created for this power supply.
	 * For example for virtual supplies forwarding calls to actual
	 * sensors or other supplies.
	 */
	bool no_thermal;
	/* For APM emulation, think legacy userspace. */
	int use_for_apm;
};

struct power_supply {
	const struct power_supply_desc *desc;

	char **supplied_to;
	size_t num_supplicants;

	char **supplied_from;
	size_t num_supplies;
	struct device_node *of_node;

	/* Driver private data */
	void *drv_data;

	/* private */
	struct device dev;
	struct work_struct changed_work;
	struct delayed_work deferred_register_work;
	spinlock_t changed_lock;
	bool changed;
	bool initialized;
	bool removing;
	atomic_t use_cnt;
#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;
};

struct power_supply_battery_ocv_table {
	int ocv;	/* microVolts */
	int capacity;	/* percent */
};

#define POWER_SUPPLY_OCV_TEMP_MAX 20

/*
 * This is the recommended struct to manage static battery parameters,
 * populated by power_supply_get_battery_info(). Most platform drivers should
 * use these for consistency.
 * Its field names must correspond to elements in enum power_supply_property.
 * The default field value is -EINVAL.
 * Power supply class itself doesn't use this.
 */

struct power_supply_battery_info {
	int energy_full_design_uwh;	    /* microWatt-hours */
	int charge_full_design_uah;	    /* microAmp-hours */
	int voltage_min_design_uv;	    /* microVolts */
	int voltage_max_design_uv;	    /* microVolts */
	int precharge_current_ua;	    /* microAmps */
	int charge_term_current_ua;	    /* microAmps */
	int constant_charge_current_max_ua; /* microAmps */
	int constant_charge_voltage_max_uv; /* microVolts */
	int factory_internal_resistance_uohm;   /* microOhms */
	int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
	struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
	int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
};

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);
extern void power_supply_put(struct power_supply *psy);
#ifdef CONFIG_OF
extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
							const char *property);
extern struct power_supply *devm_power_supply_get_by_phandle(
				    struct device *dev, 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; }
static inline struct power_supply *
devm_power_supply_get_by_phandle(struct device *dev, const char *property)
{ return NULL; }
#endif /* CONFIG_OF */

extern int power_supply_get_battery_info(struct power_supply *psy,
					 struct power_supply_battery_info *info);
extern void power_supply_put_battery_info(struct power_supply *psy,
					  struct power_supply_battery_info *info);
extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
				       int table_len, int ocv);
extern struct power_supply_battery_ocv_table *
power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
				int temp, int *table_len);
extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
					int ocv, int temp);
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_input_current_limit_from_supplier(
					 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_get_property(struct power_supply *psy,
			    enum power_supply_property psp,
			    union power_supply_propval *val);
extern int power_supply_set_property(struct power_supply *psy,
			    enum power_supply_property psp,
			    const union power_supply_propval *val);
extern int power_supply_property_is_writeable(struct power_supply *psy,
					enum power_supply_property psp);
extern void power_supply_external_power_changed(struct power_supply *psy);

extern struct power_supply *__must_check
power_supply_register(struct device *parent,
				 const struct power_supply_desc *desc,
				 const struct power_supply_config *cfg);
extern struct power_supply *__must_check
power_supply_register_no_ws(struct device *parent,
				 const struct power_supply_desc *desc,
				 const struct power_supply_config *cfg);
extern struct power_supply *__must_check
devm_power_supply_register(struct device *parent,
				 const struct power_supply_desc *desc,
				 const struct power_supply_config *cfg);
extern struct power_supply *__must_check
devm_power_supply_register_no_ws(struct device *parent,
				 const struct power_supply_desc *desc,
				 const struct power_supply_config *cfg);
extern void power_supply_unregister(struct power_supply *psy);
extern int power_supply_powers(struct power_supply *psy, struct device *dev);

#define to_power_supply(device) container_of(device, struct power_supply, dev)

extern void *power_supply_get_drvdata(struct power_supply *psy);
/* 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_PRECHARGE_CURRENT:
	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
	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:
	case POWER_SUPPLY_PROP_CURRENT_BOOT:
		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_VOLTAGE_BOOT:
	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__ */
Commit	Line	Data
a63a5fa9	1	/* SPDX-License-Identifier: GPL-2.0-only */
4a11b59d AV	2	/*
	3	* Universal power supply monitor class
	4	*
	5	* Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
	6	* Copyright © 2004 Szabolcs Gyurko
	7	* Copyright © 2003 Ian Molton <spyro@f2s.com>
	8	*
	9	* Modified: 2004, Oct Szabolcs Gyurko
4a11b59d AV	10	*/
	11
	12	#ifndef __LINUX_POWER_SUPPLY_H__
	13	#define __LINUX_POWER_SUPPLY_H__
	14
297d716f	15	#include <linux/device.h>
4a11b59d AV	16	#include <linux/workqueue.h>
4a11b59d AV	17	#include <linux/leds.h>
948dcf96	18	#include <linux/spinlock.h>
d36240d2	19	#include <linux/notifier.h>
4a11b59d AV	20
	21	/*
	22	* All voltages, currents, charges, energies, time and temperatures in uV,
	23	* µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
	24	* stated. It's driver's job to convert its raw values to units in which
	25	* this class operates.
	26	*/
	27
	28	/*
	29	* For systems where the charger determines the maximum battery capacity
	30	* the min and max fields should be used to present these values to user
	31	* space. Unused/unknown fields will not appear in sysfs.
	32	*/
	33
	34	enum {
	35	POWER_SUPPLY_STATUS_UNKNOWN = 0,
	36	POWER_SUPPLY_STATUS_CHARGING,
	37	POWER_SUPPLY_STATUS_DISCHARGING,
	38	POWER_SUPPLY_STATUS_NOT_CHARGING,
	39	POWER_SUPPLY_STATUS_FULL,
	40	};
	41
ba6cc850	42	/* What algorithm is the charger using? */
ee8076ed AS	43	enum {
	44	POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
	45	POWER_SUPPLY_CHARGE_TYPE_NONE,
ba6cc850 NC	46	POWER_SUPPLY_CHARGE_TYPE_TRICKLE, /* slow speed */
	47	POWER_SUPPLY_CHARGE_TYPE_FAST, /* fast speed */
	48	POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */
	49	POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */
	50	POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */
ee8076ed AS	51	};
ee8076ed AS	52
4a11b59d AV	53	enum {
	54	POWER_SUPPLY_HEALTH_UNKNOWN = 0,
	55	POWER_SUPPLY_HEALTH_GOOD,
	56	POWER_SUPPLY_HEALTH_OVERHEAT,
	57	POWER_SUPPLY_HEALTH_DEAD,
	58	POWER_SUPPLY_HEALTH_OVERVOLTAGE,
	59	POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
7e386e6e	60	POWER_SUPPLY_HEALTH_COLD,
a05be991 RP	61	POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
a05be991 RP	62	POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
e3e83cc6	63	POWER_SUPPLY_HEALTH_OVERCURRENT,
4a11b59d AV	64	};
	65
	66	enum {
	67	POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
	68	POWER_SUPPLY_TECHNOLOGY_NiMH,
	69	POWER_SUPPLY_TECHNOLOGY_LION,
	70	POWER_SUPPLY_TECHNOLOGY_LIPO,
	71	POWER_SUPPLY_TECHNOLOGY_LiFe,
	72	POWER_SUPPLY_TECHNOLOGY_NiCd,
c7cc930f	73	POWER_SUPPLY_TECHNOLOGY_LiMn,
4a11b59d AV	74	};
4a11b59d AV	75
b294a290 AS	76	enum {
	77	POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
	78	POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
	79	POWER_SUPPLY_CAPACITY_LEVEL_LOW,
	80	POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
	81	POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
	82	POWER_SUPPLY_CAPACITY_LEVEL_FULL,
	83	};
	84
25a0bc2d JF	85	enum {
	86	POWER_SUPPLY_SCOPE_UNKNOWN = 0,
	87	POWER_SUPPLY_SCOPE_SYSTEM,
	88	POWER_SUPPLY_SCOPE_DEVICE,
	89	};
	90
4a11b59d AV	91	enum power_supply_property {
	92	/* Properties of type `int' */
	93	POWER_SUPPLY_PROP_STATUS = 0,
ee8076ed	94	POWER_SUPPLY_PROP_CHARGE_TYPE,
4a11b59d AV	95	POWER_SUPPLY_PROP_HEALTH,
	96	POWER_SUPPLY_PROP_PRESENT,
	97	POWER_SUPPLY_PROP_ONLINE,
b1b56872	98	POWER_SUPPLY_PROP_AUTHENTIC,
4a11b59d	99	POWER_SUPPLY_PROP_TECHNOLOGY,
c955fe8e	100	POWER_SUPPLY_PROP_CYCLE_COUNT,
c7cc930f DES	101	POWER_SUPPLY_PROP_VOLTAGE_MAX,
c7cc930f DES	102	POWER_SUPPLY_PROP_VOLTAGE_MIN,
4a11b59d AV	103	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
	104	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
	105	POWER_SUPPLY_PROP_VOLTAGE_NOW,
	106	POWER_SUPPLY_PROP_VOLTAGE_AVG,
a2ebfe2f	107	POWER_SUPPLY_PROP_VOLTAGE_OCV,
a8adcc90	108	POWER_SUPPLY_PROP_VOLTAGE_BOOT,
fe3f6d09	109	POWER_SUPPLY_PROP_CURRENT_MAX,
4a11b59d AV	110	POWER_SUPPLY_PROP_CURRENT_NOW,
4a11b59d AV	111	POWER_SUPPLY_PROP_CURRENT_AVG,
a8adcc90	112	POWER_SUPPLY_PROP_CURRENT_BOOT,
7faa144a AS	113	POWER_SUPPLY_PROP_POWER_NOW,
7faa144a AS	114	POWER_SUPPLY_PROP_POWER_AVG,
4a11b59d AV	115	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
	116	POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
	117	POWER_SUPPLY_PROP_CHARGE_FULL,
	118	POWER_SUPPLY_PROP_CHARGE_EMPTY,
	119	POWER_SUPPLY_PROP_CHARGE_NOW,
	120	POWER_SUPPLY_PROP_CHARGE_AVG,
8e552c36	121	POWER_SUPPLY_PROP_CHARGE_COUNTER,
3824c477	122	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
2815b786	123	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
3824c477	124	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
2815b786	125	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
ea2ce92e RP	126	POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
ea2ce92e RP	127	POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
813cab8f NC	128	POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
813cab8f NC	129	POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
6bb1d272	130	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
4a11b59d AV	131	POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
	132	POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
	133	POWER_SUPPLY_PROP_ENERGY_FULL,
	134	POWER_SUPPLY_PROP_ENERGY_EMPTY,
	135	POWER_SUPPLY_PROP_ENERGY_NOW,
	136	POWER_SUPPLY_PROP_ENERGY_AVG,
	137	POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
e908c418 RP	138	POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
e908c418 RP	139	POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
b294a290	140	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
4a11b59d	141	POWER_SUPPLY_PROP_TEMP,
6bb1d272 JT	142	POWER_SUPPLY_PROP_TEMP_MAX,
6bb1d272 JT	143	POWER_SUPPLY_PROP_TEMP_MIN,
e908c418 RP	144	POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
e908c418 RP	145	POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
4a11b59d	146	POWER_SUPPLY_PROP_TEMP_AMBIENT,
e908c418 RP	147	POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
e908c418 RP	148	POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
4a11b59d AV	149	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
	150	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
	151	POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
	152	POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
5f487cd3	153	POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
cf450041	154	POWER_SUPPLY_PROP_USB_TYPE,
25a0bc2d	155	POWER_SUPPLY_PROP_SCOPE,
413de34a	156	POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
6bb1d272	157	POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
a8adcc90	158	POWER_SUPPLY_PROP_CALIBRATE,
4a11b59d AV	159	/* Properties of type `const char ' /
	160	POWER_SUPPLY_PROP_MODEL_NAME,
	161	POWER_SUPPLY_PROP_MANUFACTURER,
7c2670bb	162	POWER_SUPPLY_PROP_SERIAL_NUMBER,
4a11b59d AV	163	};
	164
	165	enum power_supply_type {
9b887227 KM	166	POWER_SUPPLY_TYPE_UNKNOWN = 0,
9b887227 KM	167	POWER_SUPPLY_TYPE_BATTERY,
4a11b59d AV	168	POWER_SUPPLY_TYPE_UPS,
4a11b59d AV	169	POWER_SUPPLY_TYPE_MAINS,
71399aa5 BL	170	POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */
	171	POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */
	172	POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */
	173	POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */
	174	POWER_SUPPLY_TYPE_USB_TYPE_C, /* Type C Port */
	175	POWER_SUPPLY_TYPE_USB_PD, /* Power Delivery Port */
	176	POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */
	177	POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
4a11b59d AV	178	};
4a11b59d AV	179
cf450041 AT	180	enum power_supply_usb_type {
	181	POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
	182	POWER_SUPPLY_USB_TYPE_SDP, /* Standard Downstream Port */
	183	POWER_SUPPLY_USB_TYPE_DCP, /* Dedicated Charging Port */
	184	POWER_SUPPLY_USB_TYPE_CDP, /* Charging Downstream Port */
	185	POWER_SUPPLY_USB_TYPE_ACA, /* Accessory Charger Adapters */
	186	POWER_SUPPLY_USB_TYPE_C, /* Type C Port */
	187	POWER_SUPPLY_USB_TYPE_PD, /* Power Delivery Port */
	188	POWER_SUPPLY_USB_TYPE_PD_DRP, /* PD Dual Role Port */
	189	POWER_SUPPLY_USB_TYPE_PD_PPS, /* PD Programmable Power Supply */
	190	POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
	191	};
	192
d36240d2 PR	193	enum power_supply_notifier_events {
	194	PSY_EVENT_PROP_CHANGED,
	195	};
	196
4a11b59d AV	197	union power_supply_propval {
	198	int intval;
	199	const char *strval;
	200	};
	201
b50df95c	202	struct device_node;
297d716f	203	struct power_supply;
b50df95c	204
297d716f	205	/* Run-time specific power supply configuration */
2dc9215d KK	206	struct power_supply_config {
2dc9215d KK	207	struct device_node *of_node;
ece711b5 AT	208	struct fwnode_handle *fwnode;
ece711b5 AT	209
2dc9215d KK	210	/* Driver private data */
	211	void *drv_data;
	212
cef8fe6a SR	213	/* Device specific sysfs attributes */
	214	const struct attribute_group **attr_grp;
	215
2dc9215d KK	216	char **supplied_to;
	217	size_t num_supplicants;
	218	};
	219
297d716f KK	220	/* Description of power supply */
297d716f KK	221	struct power_supply_desc {
4a11b59d AV	222	const char *name;
4a11b59d AV	223	enum power_supply_type type;
cf450041 AT	224	enum power_supply_usb_type *usb_types;
cf450041 AT	225	size_t num_usb_types;
4a11b59d AV	226	enum power_supply_property *properties;
	227	size_t num_properties;
	228
bc154056 KK	229	/*
	230	* Functions for drivers implementing power supply class.
	231	* These shouldn't be called directly by other drivers for accessing
	232	* this power supply. Instead use power_supply_*() functions (for
	233	* example power_supply_get_property()).
	234	*/
4a11b59d AV	235	int (get_property)(struct power_supply psy,
	236	enum power_supply_property psp,
	237	union power_supply_propval *val);
0011d2d4 DM	238	int (set_property)(struct power_supply psy,
	239	enum power_supply_property psp,
	240	const union power_supply_propval *val);
5c6e3a97 KK	241	/*
	242	* property_is_writeable() will be called during registration
	243	* of power supply. If this happens during device probe then it must
	244	* not access internal data of device (because probe did not end).
	245	*/
0011d2d4 DM	246	int (property_is_writeable)(struct power_supply psy,
0011d2d4 DM	247	enum power_supply_property psp);
4a11b59d	248	void (external_power_changed)(struct power_supply psy);
e5f5ccb6	249	void (set_charged)(struct power_supply psy);
4a11b59d	250
a69d82b9 KK	251	/*
	252	* Set if thermal zone should not be created for this power supply.
	253	* For example for virtual supplies forwarding calls to actual
	254	* sensors or other supplies.
	255	*/
	256	bool no_thermal;
4a11b59d AV	257	/* For APM emulation, think legacy userspace. */
4a11b59d AV	258	int use_for_apm;
297d716f KK	259	};
	260
	261	struct power_supply {
	262	const struct power_supply_desc *desc;
	263
	264	char **supplied_to;
	265	size_t num_supplicants;
	266
	267	char **supplied_from;
	268	size_t num_supplies;
	269	struct device_node *of_node;
4a11b59d	270
e44ea364 KK	271	/* Driver private data */
	272	void *drv_data;
	273
4a11b59d	274	/* private */
297d716f	275	struct device dev;
4a11b59d	276	struct work_struct changed_work;
7f1a57fd	277	struct delayed_work deferred_register_work;
948dcf96 ZM	278	spinlock_t changed_lock;
948dcf96 ZM	279	bool changed;
e3805385	280	bool initialized;
3ffa6583	281	bool removing;
bc154056	282	atomic_t use_cnt;
3be330bf JT	283	#ifdef CONFIG_THERMAL
3be330bf JT	284	struct thermal_zone_device *tzd;
952aeeb3	285	struct thermal_cooling_device *tcd;
3be330bf	286	#endif
4a11b59d AV	287
	288	#ifdef CONFIG_LEDS_TRIGGERS
	289	struct led_trigger *charging_full_trig;
	290	char *charging_full_trig_name;
	291	struct led_trigger *charging_trig;
	292	char *charging_trig_name;
	293	struct led_trigger *full_trig;
	294	char *full_trig_name;
	295	struct led_trigger *online_trig;
	296	char *online_trig_name;
6501f728 VK	297	struct led_trigger *charging_blink_full_solid_trig;
6501f728 VK	298	char *charging_blink_full_solid_trig_name;
4a11b59d AV	299	#endif
	300	};
	301
	302	/*
	303	* This is recommended structure to specify static power supply parameters.
	304	* Generic one, parametrizable for different power supplies. Power supply
	305	* class itself does not use it, but that's what implementing most platform
	306	* drivers, should try reuse for consistency.
	307	*/
	308
	309	struct power_supply_info {
	310	const char *name;
	311	int technology;
	312	int voltage_max_design;
	313	int voltage_min_design;
	314	int charge_full_design;
	315	int charge_empty_design;
	316	int energy_full_design;
	317	int energy_empty_design;
	318	int use_for_apm;
	319	};
	320
3afb50d7 BW	321	struct power_supply_battery_ocv_table {
	322	int ocv; /* microVolts */
	323	int capacity; /* percent */
	324	};
	325
	326	#define POWER_SUPPLY_OCV_TEMP_MAX 20
	327
c08b1f45 LB	328	/*
	329	* This is the recommended struct to manage static battery parameters,
	330	* populated by power_supply_get_battery_info(). Most platform drivers should
	331	* use these for consistency.
	332	* Its field names must correspond to elements in enum power_supply_property.
	333	* The default field value is -EINVAL.
	334	* Power supply class itself doesn't use this.
	335	*/
	336
	337	struct power_supply_battery_info {
	338	int energy_full_design_uwh; /* microWatt-hours */
	339	int charge_full_design_uah; /* microAmp-hours */
	340	int voltage_min_design_uv; /* microVolts */
04fb5310	341	int voltage_max_design_uv; /* microVolts */
c08b1f45 LB	342	int precharge_current_ua; /* microAmps */
	343	int charge_term_current_ua; /* microAmps */
	344	int constant_charge_current_max_ua; /* microAmps */
	345	int constant_charge_voltage_max_uv; /* microVolts */
86131d93	346	int factory_internal_resistance_uohm; /* microOhms */
3afb50d7 BW	347	int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
	348	struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
	349	int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
c08b1f45 LB	350	};
c08b1f45 LB	351
d36240d2 PR	352	extern struct atomic_notifier_head power_supply_notifier;
	353	extern int power_supply_reg_notifier(struct notifier_block *nb);
	354	extern void power_supply_unreg_notifier(struct notifier_block *nb);
9f3b795a	355	extern struct power_supply power_supply_get_by_name(const char name);
1a352462	356	extern void power_supply_put(struct power_supply *psy);
abce9770 SR	357	#ifdef CONFIG_OF
	358	extern struct power_supply power_supply_get_by_phandle(struct device_node np,
	359	const char *property);
fe27e1df HG	360	extern struct power_supply *devm_power_supply_get_by_phandle(
fe27e1df HG	361	struct device dev, const char property);
abce9770 SR	362	#else /* !CONFIG_OF */
	363	static inline struct power_supply *
	364	power_supply_get_by_phandle(struct device_node np, const char property)
	365	{ return NULL; }
fe27e1df HG	366	static inline struct power_supply *
	367	devm_power_supply_get_by_phandle(struct device dev, const char property)
	368	{ return NULL; }
abce9770	369	#endif /* CONFIG_OF */
c08b1f45 LB	370
	371	extern int power_supply_get_battery_info(struct power_supply *psy,
	372	struct power_supply_battery_info *info);
3afb50d7 BW	373	extern void power_supply_put_battery_info(struct power_supply *psy,
	374	struct power_supply_battery_info *info);
	375	extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
	376	int table_len, int ocv);
	377	extern struct power_supply_battery_ocv_table *
	378	power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
	379	int temp, int *table_len);
	380	extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
	381	int ocv, int temp);
4a11b59d AV	382	extern void power_supply_changed(struct power_supply *psy);
4a11b59d AV	383	extern int power_supply_am_i_supplied(struct power_supply *psy);
c3142dd8 HG	384	extern int power_supply_set_input_current_limit_from_supplier(
c3142dd8 HG	385	struct power_supply *psy);
e5f5ccb6	386	extern int power_supply_set_battery_charged(struct power_supply *psy);
4a11b59d	387
0d4ed4e2	388	#ifdef CONFIG_POWER_SUPPLY
942ed161 MG	389	extern int power_supply_is_system_supplied(void);
	390	#else
	391	static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
	392	#endif
	393
bc154056 KK	394	extern int power_supply_get_property(struct power_supply *psy,
	395	enum power_supply_property psp,
	396	union power_supply_propval *val);
	397	extern int power_supply_set_property(struct power_supply *psy,
	398	enum power_supply_property psp,
	399	const union power_supply_propval *val);
	400	extern int power_supply_property_is_writeable(struct power_supply *psy,
	401	enum power_supply_property psp);
	402	extern void power_supply_external_power_changed(struct power_supply *psy);
297d716f KK	403
	404	extern struct power_supply *__must_check
	405	power_supply_register(struct device *parent,
	406	const struct power_supply_desc *desc,
2dc9215d	407	const struct power_supply_config *cfg);
297d716f KK	408	extern struct power_supply *__must_check
	409	power_supply_register_no_ws(struct device *parent,
	410	const struct power_supply_desc *desc,
2dc9215d	411	const struct power_supply_config *cfg);
297d716f KK	412	extern struct power_supply *__must_check
	413	devm_power_supply_register(struct device *parent,
	414	const struct power_supply_desc *desc,
2dc9215d	415	const struct power_supply_config *cfg);
297d716f KK	416	extern struct power_supply *__must_check
	417	devm_power_supply_register_no_ws(struct device *parent,
	418	const struct power_supply_desc *desc,
2dc9215d	419	const struct power_supply_config *cfg);
4a11b59d	420	extern void power_supply_unregister(struct power_supply *psy);
83516651	421	extern int power_supply_powers(struct power_supply psy, struct device dev);
4a11b59d	422
285995d1 OG	423	#define to_power_supply(device) container_of(device, struct power_supply, dev)
285995d1 OG	424
e44ea364	425	extern void power_supply_get_drvdata(struct power_supply psy);
4a11b59d AV	426	/* For APM emulation, think legacy userspace. */
	427	extern struct class *power_supply_class;
	428
51d07566 RK	429	static inline bool power_supply_is_amp_property(enum power_supply_property psp)
	430	{
	431	switch (psp) {
	432	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
	433	case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
	434	case POWER_SUPPLY_PROP_CHARGE_FULL:
	435	case POWER_SUPPLY_PROP_CHARGE_EMPTY:
	436	case POWER_SUPPLY_PROP_CHARGE_NOW:
	437	case POWER_SUPPLY_PROP_CHARGE_AVG:
	438	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
413de34a LB	439	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
413de34a LB	440	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
3824c477	441	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
2815b786	442	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
51d07566 RK	443	case POWER_SUPPLY_PROP_CURRENT_MAX:
	444	case POWER_SUPPLY_PROP_CURRENT_NOW:
	445	case POWER_SUPPLY_PROP_CURRENT_AVG:
a8adcc90	446	case POWER_SUPPLY_PROP_CURRENT_BOOT:
51d07566 RK	447	return 1;
	448	default:
	449	break;
	450	}
	451
	452	return 0;
	453	}
	454
	455	static inline bool power_supply_is_watt_property(enum power_supply_property psp)
	456	{
	457	switch (psp) {
	458	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
	459	case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
	460	case POWER_SUPPLY_PROP_ENERGY_FULL:
	461	case POWER_SUPPLY_PROP_ENERGY_EMPTY:
	462	case POWER_SUPPLY_PROP_ENERGY_NOW:
	463	case POWER_SUPPLY_PROP_ENERGY_AVG:
	464	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
	465	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
	466	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
	467	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
	468	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
	469	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
a2ebfe2f	470	case POWER_SUPPLY_PROP_VOLTAGE_OCV:
a8adcc90	471	case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
3824c477	472	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
2815b786	473	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
35c9d267	474	case POWER_SUPPLY_PROP_POWER_NOW:
51d07566 RK	475	return 1;
	476	default:
	477	break;
	478	}
	479
	480	return 0;
	481	}
	482
4a11b59d	483	#endif /* __LINUX_POWER_SUPPLY_H__ */