v4.19.13 snapshot.
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
new file mode 100644
index 0000000..f807691
--- /dev/null
+++ b/include/linux/power_supply.h
@@ -0,0 +1,453 @@
+/*
+ * 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
+ *
+ * You may use this code as per GPL version 2
+ */
+
+#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,
+};
+
+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_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;
+
+ 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;
+};
+
+/*
+ * 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 precharge_current_ua; /* microAmps */
+ int charge_term_current_ua; /* microAmps */
+ int constant_charge_current_max_ua; /* microAmps */
+ int constant_charge_voltage_max_uv; /* microVolts */
+};
+
+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_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__ */