Charger Interface

Charger Interface. More...

Data Structures
struct	charger_current_notifier
	The input current thresholds for the charger to notify the system. More...
union	charger_propval
	container for a charger_property value More...
struct	charger_driver_api
	Charging device API. More...

Typedefs
typedef uint16_t	charger_prop_t
	A charger property's identifier.
typedef void(*	charger_status_notifier_t) (enum charger_status status)
	The charger status change callback to notify the system.
typedef void(*	charger_online_notifier_t) (enum charger_online online)
	The charger online change callback to notify the system.
typedef int(*	charger_get_property_t) (const struct device *dev, const charger_prop_t prop, union charger_propval *val)
	Callback API for getting a charger property.
typedef int(*	charger_set_property_t) (const struct device *dev, const charger_prop_t prop, const union charger_propval *val)
	Callback API for setting a charger property.
typedef int(*	charger_charge_enable_t) (const struct device *dev, const bool enable)
	Callback API enabling or disabling a charge cycle.

Enumerations
enum	charger_property {   CHARGER_PROP_ONLINE = 0 , CHARGER_PROP_PRESENT , CHARGER_PROP_STATUS , CHARGER_PROP_CHARGE_TYPE ,   CHARGER_PROP_HEALTH , CHARGER_PROP_CONSTANT_CHARGE_CURRENT_UA , CHARGER_PROP_PRECHARGE_CURRENT_UA , CHARGER_PROP_CHARGE_TERM_CURRENT_UA ,   CHARGER_PROP_CONSTANT_CHARGE_VOLTAGE_UV , CHARGER_PROP_INPUT_REGULATION_CURRENT_UA , CHARGER_PROP_INPUT_REGULATION_VOLTAGE_UV , CHARGER_PROP_INPUT_CURRENT_NOTIFICATION ,   CHARGER_PROP_DISCHARGE_CURRENT_NOTIFICATION , CHARGER_PROP_SYSTEM_VOLTAGE_NOTIFICATION_UV , CHARGER_PROP_STATUS_NOTIFICATION , CHARGER_PROP_ONLINE_NOTIFICATION ,   CHARGER_PROP_COMMON_COUNT , CHARGER_PROP_CUSTOM_BEGIN = CHARGER_PROP_COMMON_COUNT + 1 , CHARGER_PROP_MAX = UINT16_MAX }
	Runtime Dynamic Battery Parameters. More...
enum	charger_online { CHARGER_ONLINE_OFFLINE = 0 , CHARGER_ONLINE_FIXED , CHARGER_ONLINE_PROGRAMMABLE }
	External supply states. More...
enum	charger_status {   CHARGER_STATUS_UNKNOWN = 0 , CHARGER_STATUS_CHARGING , CHARGER_STATUS_DISCHARGING , CHARGER_STATUS_NOT_CHARGING ,   CHARGER_STATUS_FULL }
	Charging states. More...
enum	charger_charge_type {   CHARGER_CHARGE_TYPE_UNKNOWN = 0 , CHARGER_CHARGE_TYPE_NONE , CHARGER_CHARGE_TYPE_TRICKLE , CHARGER_CHARGE_TYPE_FAST ,   CHARGER_CHARGE_TYPE_STANDARD , CHARGER_CHARGE_TYPE_ADAPTIVE , CHARGER_CHARGE_TYPE_LONGLIFE , CHARGER_CHARGE_TYPE_BYPASS }
	Charge algorithm types. More...
enum	charger_health {   CHARGER_HEALTH_UNKNOWN = 0 , CHARGER_HEALTH_GOOD , CHARGER_HEALTH_OVERHEAT , CHARGER_HEALTH_OVERVOLTAGE ,   CHARGER_HEALTH_UNSPEC_FAILURE , CHARGER_HEALTH_COLD , CHARGER_HEALTH_WATCHDOG_TIMER_EXPIRE , CHARGER_HEALTH_SAFETY_TIMER_EXPIRE ,   CHARGER_HEALTH_CALIBRATION_REQUIRED , CHARGER_HEALTH_WARM , CHARGER_HEALTH_COOL , CHARGER_HEALTH_HOT ,   CHARGER_HEALTH_NO_BATTERY }
	Charger health conditions. More...
enum	charger_notification_severity { CHARGER_SEVERITY_PEAK = 0 , CHARGER_SEVERITY_CRITICAL , CHARGER_SEVERITY_WARNING }
	Charger severity levels for system notifications. More...

Functions
int	charger_get_prop (const struct device *dev, const charger_prop_t prop, union charger_propval *val)
	Fetch a battery charger property.
int	charger_set_prop (const struct device *dev, const charger_prop_t prop, const union charger_propval *val)
	Set a battery charger property.
int	charger_charge_enable (const struct device *dev, const bool enable)
	Enable or disable a charge cycle.

Detailed Description

Charger Interface.

Typedef Documentation

charger_charge_enable_t

charger_charge_enable_t

#include <include/zephyr/drivers/charger.h>

Callback API enabling or disabling a charge cycle.

See charger_charge_enable() for argument description

charger_get_property_t

charger_get_property_t

#include <include/zephyr/drivers/charger.h>

Callback API for getting a charger property.

See charger_get_property() for argument description

charger_online_notifier_t

typedef void(* charger_online_notifier_t) (enum charger_online online)

#include <include/zephyr/drivers/charger.h>

The charger online change callback to notify the system.

Parameters

online

Current external supply state

charger_prop_t

charger_prop_t

#include <include/zephyr/drivers/charger.h>

A charger property's identifier.

See charger_property for a list of identifiers

charger_set_property_t

charger_set_property_t

#include <include/zephyr/drivers/charger.h>

Callback API for setting a charger property.

See charger_set_property() for argument description

charger_status_notifier_t

typedef void(* charger_status_notifier_t) (enum charger_status status)

#include <include/zephyr/drivers/charger.h>

The charger status change callback to notify the system.

Parameters

status

Current charging state

Enumeration Type Documentation

charger_charge_type

enum charger_charge_type

#include <include/zephyr/drivers/charger.h>

Charge algorithm types.

Enumerator
CHARGER_CHARGE_TYPE_UNKNOWN	Charge type is unknown.
CHARGER_CHARGE_TYPE_NONE	Charging is not occurring.
CHARGER_CHARGE_TYPE_TRICKLE	Charging is occurring at the slowest desired charge rate, typically for battery detection or preconditioning.
CHARGER_CHARGE_TYPE_FAST	Charging is occurring at the fastest desired charge rate.
CHARGER_CHARGE_TYPE_STANDARD	Charging is occurring at a moderate charge rate.
CHARGER_CHARGE_TYPE_ADAPTIVE
CHARGER_CHARGE_TYPE_LONGLIFE
CHARGER_CHARGE_TYPE_BYPASS

charger_health

enum charger_health

#include <include/zephyr/drivers/charger.h>

Charger health conditions.

These conditions determine the ability to, or the rate of, charge

Enumerator
CHARGER_HEALTH_UNKNOWN	Charger health condition is unknown.
CHARGER_HEALTH_GOOD	Charger health condition is good.
CHARGER_HEALTH_OVERHEAT	The charger device is overheated.
CHARGER_HEALTH_OVERVOLTAGE	The battery voltage has exceeded its overvoltage threshold.
CHARGER_HEALTH_UNSPEC_FAILURE	The battery or charger device is experiencing an unspecified failure.
CHARGER_HEALTH_COLD	The battery temperature is below the "cold" threshold.
CHARGER_HEALTH_WATCHDOG_TIMER_EXPIRE	The charger device's watchdog timer has expired.
CHARGER_HEALTH_SAFETY_TIMER_EXPIRE	The charger device's safety timer has expired.
CHARGER_HEALTH_CALIBRATION_REQUIRED	The charger device requires calibration.
CHARGER_HEALTH_WARM	The battery temperature is in the "warm" range.
CHARGER_HEALTH_COOL	The battery temperature is in the "cool" range.
CHARGER_HEALTH_HOT	The battery temperature is below the "hot" threshold.
CHARGER_HEALTH_NO_BATTERY	The charger device does not detect a battery.

charger_notification_severity

enum charger_notification_severity

#include <include/zephyr/drivers/charger.h>

Charger severity levels for system notifications.

Enumerator
CHARGER_SEVERITY_PEAK	Most severe level, typically triggered instantaneously.
CHARGER_SEVERITY_CRITICAL	More severe than the warning level, less severe than peak.
CHARGER_SEVERITY_WARNING	Base severity level.

charger_online

enum charger_online

#include <include/zephyr/drivers/charger.h>

External supply states.

Enumerator
CHARGER_ONLINE_OFFLINE	External supply not present.
CHARGER_ONLINE_FIXED	External supply is present and of fixed output.
CHARGER_ONLINE_PROGRAMMABLE	External supply is present and of programmable output.

charger_property

enum charger_property

#include <include/zephyr/drivers/charger.h>

Runtime Dynamic Battery Parameters.

Enumerator
CHARGER_PROP_ONLINE	Indicates if external supply is present for the charger. Value should be of type enum charger_online
CHARGER_PROP_PRESENT	Reports whether or not a battery is present. Value should be of type bool
CHARGER_PROP_STATUS	Represents the charging status of the charger. Value should be of type enum charger_status
CHARGER_PROP_CHARGE_TYPE	Represents the charging algo type of the charger. Value should be of type enum charger_charge_type
CHARGER_PROP_HEALTH	Represents the health of the charger. Value should be of type enum charger_health
CHARGER_PROP_CONSTANT_CHARGE_CURRENT_UA	Configuration of current sink used for charging in µA.
CHARGER_PROP_PRECHARGE_CURRENT_UA	Configuration of current sink used for conditioning in µA.
CHARGER_PROP_CHARGE_TERM_CURRENT_UA	Configuration of charge termination target in µA.
CHARGER_PROP_CONSTANT_CHARGE_VOLTAGE_UV	Configuration of charge voltage regulation target in µV.
CHARGER_PROP_INPUT_REGULATION_CURRENT_UA	Configuration of the input current regulation target in µA. This value is a rising current threshold that is regulated by reducing the charge current output
CHARGER_PROP_INPUT_REGULATION_VOLTAGE_UV	Configuration of the input voltage regulation target in µV. This value is a falling voltage threshold that is regulated by reducing the charge current output
CHARGER_PROP_INPUT_CURRENT_NOTIFICATION	Configuration to issue a notification to the system based on the input current level and timing. Value should be of type struct charger_current_notifier
CHARGER_PROP_DISCHARGE_CURRENT_NOTIFICATION	Configuration to issue a notification to the system based on the battery discharge current level and timing. Value should be of type struct charger_current_notifier
CHARGER_PROP_SYSTEM_VOLTAGE_NOTIFICATION_UV	Configuration of the falling system voltage threshold where a notification is issued to the system, measured in µV.
CHARGER_PROP_STATUS_NOTIFICATION	Configuration to issue a notification to the system based on the charger status change. Value should be of type charger_status_notifier_t
CHARGER_PROP_ONLINE_NOTIFICATION	Configuration to issue a notification to the system based on the charger online change. Value should be of type charger_online_notifier_t
CHARGER_PROP_COMMON_COUNT	Reserved to demark end of common charger properties.
CHARGER_PROP_CUSTOM_BEGIN	Reserved to demark downstream custom properties - use this value as the actual value may change over future versions of this API.
CHARGER_PROP_MAX	Reserved to demark end of valid enum properties.

charger_status

enum charger_status

#include <include/zephyr/drivers/charger.h>

Charging states.

Enumerator
CHARGER_STATUS_UNKNOWN	Charging device state is unknown.
CHARGER_STATUS_CHARGING	Charging device is charging a battery.
CHARGER_STATUS_DISCHARGING	Charging device is not able to charge a battery.
CHARGER_STATUS_NOT_CHARGING	Charging device is not charging a battery.
CHARGER_STATUS_FULL	The battery is full and the charging device will not attempt charging.

Function Documentation

charger_charge_enable()

int charger_charge_enable	(	const struct device *	dev,
		const bool	enable
	)

#include <include/zephyr/drivers/charger.h>

Enable or disable a charge cycle.

Parameters

dev	Pointer to the battery charger device
enable	true enables a charge cycle, false disables a charge cycle

Return values

0	if successful
-EIO	if communication with the charger failed
-EINVAL	if the conditions for initiating charging are invalid

charger_get_prop()

int charger_get_prop	(	const struct device *	dev,
		const charger_prop_t	prop,
		union charger_propval *	val
	)

#include <include/zephyr/drivers/charger.h>

Fetch a battery charger property.

Parameters

dev	Pointer to the battery charger device
prop	Charger property to get
val	Pointer to charger_propval union

Return values

0	if successful
<	0 if getting property failed

charger_set_prop()

int charger_set_prop	(	const struct device *	dev,
		const charger_prop_t	prop,
		const union charger_propval *	val
	)

#include <include/zephyr/drivers/charger.h>

Set a battery charger property.

Parameters

dev	Pointer to the battery charger device
prop	Charger property to set
val	Pointer to charger_propval union

Return values

0	if successful
<	0 if setting property failed