＜linux/power_supply_old.h＞

/*
 *  Universal power supply monitor class
 *
 *  Copyright © 2007  Anton Vorontsov
 *  Copyright © 2004  Szabolcs Gyurko
 *  Copyright © 2003  Ian Molton
 *
 *  Modified: 2004, Oct     Szabolcs Gyurko
 *
 *  You may use this code as per GPL version 2
 */

#ifndef __LINUX_POWER_SUPPLY_H__
#define __LINUX_POWER_SUPPLY_H__

#include
#include
#include
#include
#include

/*
 * All voltages, currents, charges, energies, time and temperatures in uV,
 * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
 * stated. It's driver's job to convert its raw values to units in which
 * this class operates.
 */

/*
 * For systems where the charger determines the maximum battery capacity
 * the min and max fields should be used to present these values to user
 * space. Unused/unknown fields will not appear in sysfs.
 */

enum {
    POWER_SUPPLY_STATUS_UNKNOWN = 0,
    POWER_SUPPLY_STATUS_CHARGING,
    POWER_SUPPLY_STATUS_DISCHARGING,
    POWER_SUPPLY_STATUS_NOT_CHARGING,
    POWER_SUPPLY_STATUS_FULL,
};

enum {
    POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
    POWER_SUPPLY_CHARGE_TYPE_NONE,
    POWER_SUPPLY_CHARGE_TYPE_TRICKLE,
    POWER_SUPPLY_CHARGE_TYPE_FAST,
};

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,
};

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_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_SCOPE,
    POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
    POWER_SUPPLY_PROP_CALIBRATE,
    /* Local extensions */
    POWER_SUPPLY_PROP_USB_HC,
    POWER_SUPPLY_PROP_USB_OTG,
    POWER_SUPPLY_PROP_CHARGE_ENABLED,
    /* Local extensions of type int64_t */
    POWER_SUPPLY_PROP_CHARGE_COUNTER_EXT,
    /* 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 */
};

enum power_supply_notifier_events {
    PSY_EVENT_PROP_CHANGED,
};

union power_supply_propval {
    int intval;
    const char *strval;
    int64_t int64val;
};

struct device;
struct device_node;

struct power_supply {
    const char *name;
    enum power_supply_type type;
    enum power_supply_property *properties;
    size_t num_properties;

    char **supplied_to;
    size_t num_supplicants;

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

    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);
    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;

    /* private */
    struct device *dev;
    struct work_struct changed_work;
    spinlock_t changed_lock;
    bool changed;
#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;
};

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);
#ifdef CONFIG_OF
extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
                            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; }
#endif /* CONFIG_OF */
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_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_register(struct device *parent,
                 struct power_supply *psy);
extern int power_supply_register_no_ws(struct device *parent,
                 struct power_supply *psy);
extern void power_supply_unregister(struct power_supply *psy);
extern int power_supply_powers(struct power_supply *psy, struct device *dev);

/* 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_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__ */