2019-05-28 17:10:21 +00:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2007-05-03 20:27:45 +00:00
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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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2015-03-12 07:44:11 +00:00
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#include <linux/device.h>
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2007-05-03 20:27:45 +00:00
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#include <linux/workqueue.h>
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#include <linux/leds.h>
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2013-08-02 20:38:02 +00:00
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#include <linux/spinlock.h>
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2013-11-19 10:18:03 +00:00
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#include <linux/notifier.h>
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2007-05-03 20:27:45 +00:00
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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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2019-04-18 16:43:12 +00:00
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/* What algorithm is the charger using? */
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2009-07-02 13:45:18 +00:00
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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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2019-04-18 16:43:12 +00:00
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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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2020-07-30 03:26:09 +00:00
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POWER_SUPPLY_CHARGE_TYPE_LONGLIFE, /* slow speed, longer life */
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2009-07-02 13:45:18 +00:00
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};
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2007-05-03 20:27:45 +00:00
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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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2008-11-30 21:43:21 +00:00
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POWER_SUPPLY_HEALTH_COLD,
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2012-11-30 08:27:46 +00:00
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POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
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POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
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2019-05-03 17:00:40 +00:00
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POWER_SUPPLY_HEALTH_OVERCURRENT,
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2020-05-13 18:56:00 +00:00
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POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
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2020-07-20 20:43:57 +00:00
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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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2021-11-08 16:27:05 +00:00
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POWER_SUPPLY_HEALTH_NO_BATTERY,
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2007-05-03 20:27:45 +00:00
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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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2008-01-07 01:12:41 +00:00
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POWER_SUPPLY_TECHNOLOGY_LiMn,
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2007-05-03 20:27:45 +00:00
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};
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2009-06-30 06:13:01 +00:00
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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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2011-12-07 19:24:20 +00:00
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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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2007-05-03 20:27:45 +00:00
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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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2009-07-02 13:45:18 +00:00
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POWER_SUPPLY_PROP_CHARGE_TYPE,
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2007-05-03 20:27:45 +00:00
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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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2012-08-23 01:20:21 +00:00
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POWER_SUPPLY_PROP_AUTHENTIC,
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2007-05-03 20:27:45 +00:00
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POWER_SUPPLY_PROP_TECHNOLOGY,
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2009-10-15 10:31:30 +00:00
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POWER_SUPPLY_PROP_CYCLE_COUNT,
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2008-01-07 01:12:41 +00:00
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POWER_SUPPLY_PROP_VOLTAGE_MAX,
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POWER_SUPPLY_PROP_VOLTAGE_MIN,
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2007-05-03 20:27:45 +00:00
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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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2012-04-10 10:51:20 +00:00
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POWER_SUPPLY_PROP_VOLTAGE_OCV,
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2014-08-27 18:14:08 +00:00
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POWER_SUPPLY_PROP_VOLTAGE_BOOT,
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2010-10-04 07:51:38 +00:00
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POWER_SUPPLY_PROP_CURRENT_MAX,
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2007-05-03 20:27:45 +00:00
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POWER_SUPPLY_PROP_CURRENT_NOW,
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POWER_SUPPLY_PROP_CURRENT_AVG,
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2014-08-27 18:14:08 +00:00
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POWER_SUPPLY_PROP_CURRENT_BOOT,
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2009-03-28 02:23:52 +00:00
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POWER_SUPPLY_PROP_POWER_NOW,
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POWER_SUPPLY_PROP_POWER_AVG,
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2007-05-03 20:27:45 +00:00
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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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2008-05-13 01:46:29 +00:00
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POWER_SUPPLY_PROP_CHARGE_COUNTER,
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2012-05-06 12:46:44 +00:00
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
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2012-07-30 07:19:21 +00:00
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
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2012-05-06 12:46:44 +00:00
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
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2012-07-30 07:19:21 +00:00
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POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
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2012-10-09 16:55:29 +00:00
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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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2019-04-18 16:43:13 +00:00
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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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2021-11-23 23:27:01 +00:00
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POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR,
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2014-07-08 06:04:18 +00:00
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POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
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power: supply: add input power and voltage limit properties
For thermal management strategy you might be interested on limit the
input power for a power supply. We already have current limit but
basically what we probably want is to limit power. So, introduce the
input_power_limit property.
Although the common use case is limit the input power, in some
specific cases it is the voltage that is problematic (i.e some regulators
have different efficiencies at higher voltage resulting in more heat).
So introduce also the input_voltage_limit property.
This happens in one Chromebook and is used on the Pixel C's thermal
management strategy to effectively limit the input power to 5V 3A when
the screen is on. When the screen is on, the display, the CPU, and the GPU
all contribute more heat to the system than while the screen is off, and
we made a tradeoff to throttle the charger in order to give more of the
thermal budget to those other components.
So there's nothing fundamentally broken about the hardware that would
cause the Pixel C to malfunction if we were charging at 9V or 12V instead
of 5V when the screen is on, i.e. if userspace doesn't change this.
What would happen is that you wouldn't meet Google's skin temperature
targets on the system if the charger was allowed to run at 9V or 12V with
the screen on.
For folks hacking on Pixel Cs (which is now outside of Google's official
support window for Android) and customizing their own kernel and userspace
this would be acceptable, but we wanted to expose this feature in the
power supply properties because the feature does exist in the Emedded
Controller firmware of the Pixel C and all of Google's Chromebooks with
USB-C made since 2015 in case someone running an up to date kernel wanted
to limit the charging power for thermal or other reasons.
This patch exposes a new property, similar to input current limit, to
re-configure the maximum voltage from the external supply at runtime
based on system-level knowledge or user input.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-05-07 09:52:47 +00:00
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POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
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POWER_SUPPLY_PROP_INPUT_POWER_LIMIT,
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2007-05-03 20:27:45 +00:00
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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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2012-07-05 11:29:12 +00:00
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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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2020-05-13 18:55:58 +00:00
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POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN, /* in percents! */
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2009-06-30 06:13:01 +00:00
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POWER_SUPPLY_PROP_CAPACITY_LEVEL,
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2007-05-03 20:27:45 +00:00
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POWER_SUPPLY_PROP_TEMP,
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2014-07-08 06:04:18 +00:00
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POWER_SUPPLY_PROP_TEMP_MAX,
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POWER_SUPPLY_PROP_TEMP_MIN,
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2012-07-05 11:29:12 +00:00
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POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
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POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
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2007-05-03 20:27:45 +00:00
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POWER_SUPPLY_PROP_TEMP_AMBIENT,
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2012-07-05 11:29:12 +00:00
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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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2007-05-03 20:27:45 +00:00
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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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2010-05-18 19:49:51 +00:00
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POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
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power: supply: Add 'usb_type' property and supporting code
This commit adds the 'usb_type' property to represent USB supplies
which can report a number of different types based on a connection
event.
Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB, USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.
The 'usb_type' property is intended to fill this void and show users
all possible USB types supported by a driver. The property, when read,
shows all available types for the driver, and the one currently chosen
is highlighted/bracketed. It is expected that the 'type' property
would then just show the top-level type 'USB', and this would be
static.
Currently the 'usb_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
SDP and PPS types. The mirroring is intentional so as to not impact
existing usage of the 'type' property.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:10:59 +00:00
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POWER_SUPPLY_PROP_USB_TYPE,
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2011-12-07 19:24:20 +00:00
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POWER_SUPPLY_PROP_SCOPE,
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2017-06-07 18:37:52 +00:00
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POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
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2014-07-08 06:04:18 +00:00
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POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
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2014-08-27 18:14:08 +00:00
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POWER_SUPPLY_PROP_CALIBRATE,
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2020-05-13 18:55:59 +00:00
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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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2007-05-03 20:27:45 +00:00
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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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2008-01-22 17:46:50 +00:00
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POWER_SUPPLY_PROP_SERIAL_NUMBER,
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2007-05-03 20:27:45 +00:00
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};
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enum power_supply_type {
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2011-12-01 07:08:33 +00:00
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POWER_SUPPLY_TYPE_UNKNOWN = 0,
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POWER_SUPPLY_TYPE_BATTERY,
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2007-05-03 20:27:45 +00:00
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POWER_SUPPLY_TYPE_UPS,
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POWER_SUPPLY_TYPE_MAINS,
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2017-05-08 22:02:48 +00:00
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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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2020-08-13 18:34:08 +00:00
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POWER_SUPPLY_TYPE_WIRELESS, /* Wireless */
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2007-05-03 20:27:45 +00:00
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};
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power: supply: Add 'usb_type' property and supporting code
This commit adds the 'usb_type' property to represent USB supplies
which can report a number of different types based on a connection
event.
Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB, USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.
The 'usb_type' property is intended to fill this void and show users
all possible USB types supported by a driver. The property, when read,
shows all available types for the driver, and the one currently chosen
is highlighted/bracketed. It is expected that the 'type' property
would then just show the top-level type 'USB', and this would be
static.
Currently the 'usb_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
SDP and PPS types. The mirroring is intentional so as to not impact
existing usage of the 'type' property.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:10:59 +00:00
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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 */
|
|
|
|
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 */
|
|
|
|
};
|
|
|
|
|
2021-11-23 23:27:01 +00:00
|
|
|
enum power_supply_charge_behaviour {
|
|
|
|
POWER_SUPPLY_CHARGE_BEHAVIOUR_AUTO = 0,
|
|
|
|
POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE,
|
|
|
|
POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE,
|
|
|
|
};
|
|
|
|
|
2013-11-19 10:18:03 +00:00
|
|
|
enum power_supply_notifier_events {
|
|
|
|
PSY_EVENT_PROP_CHANGED,
|
|
|
|
};
|
|
|
|
|
2007-05-03 20:27:45 +00:00
|
|
|
union power_supply_propval {
|
|
|
|
int intval;
|
|
|
|
const char *strval;
|
|
|
|
};
|
|
|
|
|
2013-06-29 01:17:22 +00:00
|
|
|
struct device_node;
|
2015-03-12 07:44:11 +00:00
|
|
|
struct power_supply;
|
2013-06-29 01:17:22 +00:00
|
|
|
|
2015-03-12 07:44:11 +00:00
|
|
|
/* Run-time specific power supply configuration */
|
2015-03-12 07:44:02 +00:00
|
|
|
struct power_supply_config {
|
|
|
|
struct device_node *of_node;
|
2018-05-22 15:16:23 +00:00
|
|
|
struct fwnode_handle *fwnode;
|
|
|
|
|
2015-03-12 07:44:02 +00:00
|
|
|
/* Driver private data */
|
|
|
|
void *drv_data;
|
|
|
|
|
2018-09-27 13:46:03 +00:00
|
|
|
/* Device specific sysfs attributes */
|
|
|
|
const struct attribute_group **attr_grp;
|
|
|
|
|
2015-03-12 07:44:02 +00:00
|
|
|
char **supplied_to;
|
|
|
|
size_t num_supplicants;
|
|
|
|
};
|
|
|
|
|
2015-03-12 07:44:11 +00:00
|
|
|
/* Description of power supply */
|
|
|
|
struct power_supply_desc {
|
2007-05-03 20:27:45 +00:00
|
|
|
const char *name;
|
|
|
|
enum power_supply_type type;
|
2020-04-03 20:20:32 +00:00
|
|
|
const enum power_supply_usb_type *usb_types;
|
power: supply: Add 'usb_type' property and supporting code
This commit adds the 'usb_type' property to represent USB supplies
which can report a number of different types based on a connection
event.
Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB, USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.
The 'usb_type' property is intended to fill this void and show users
all possible USB types supported by a driver. The property, when read,
shows all available types for the driver, and the one currently chosen
is highlighted/bracketed. It is expected that the 'type' property
would then just show the top-level type 'USB', and this would be
static.
Currently the 'usb_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
SDP and PPS types. The mirroring is intentional so as to not impact
existing usage of the 'type' property.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:10:59 +00:00
|
|
|
size_t num_usb_types;
|
2020-04-03 20:20:32 +00:00
|
|
|
const enum power_supply_property *properties;
|
2007-05-03 20:27:45 +00:00
|
|
|
size_t num_properties;
|
|
|
|
|
2015-03-12 07:44:03 +00:00
|
|
|
/*
|
|
|
|
* 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()).
|
|
|
|
*/
|
2007-05-03 20:27:45 +00:00
|
|
|
int (*get_property)(struct power_supply *psy,
|
|
|
|
enum power_supply_property psp,
|
|
|
|
union power_supply_propval *val);
|
2010-05-18 19:49:52 +00:00
|
|
|
int (*set_property)(struct power_supply *psy,
|
|
|
|
enum power_supply_property psp,
|
|
|
|
const union power_supply_propval *val);
|
2015-06-08 01:09:48 +00:00
|
|
|
/*
|
|
|
|
* 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).
|
|
|
|
*/
|
2010-05-18 19:49:52 +00:00
|
|
|
int (*property_is_writeable)(struct power_supply *psy,
|
|
|
|
enum power_supply_property psp);
|
2007-05-03 20:27:45 +00:00
|
|
|
void (*external_power_changed)(struct power_supply *psy);
|
2009-07-23 18:35:53 +00:00
|
|
|
void (*set_charged)(struct power_supply *psy);
|
2007-05-03 20:27:45 +00:00
|
|
|
|
2014-10-07 15:47:36 +00:00
|
|
|
/*
|
|
|
|
* 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;
|
2007-05-03 20:27:45 +00:00
|
|
|
/* For APM emulation, think legacy userspace. */
|
|
|
|
int use_for_apm;
|
2015-03-12 07:44:11 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
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;
|
2007-05-03 20:27:45 +00:00
|
|
|
|
2015-03-12 07:44:01 +00:00
|
|
|
/* Driver private data */
|
|
|
|
void *drv_data;
|
|
|
|
|
2007-05-03 20:27:45 +00:00
|
|
|
/* private */
|
2015-03-12 07:44:11 +00:00
|
|
|
struct device dev;
|
2007-05-03 20:27:45 +00:00
|
|
|
struct work_struct changed_work;
|
2015-05-19 07:13:02 +00:00
|
|
|
struct delayed_work deferred_register_work;
|
2013-08-02 20:38:02 +00:00
|
|
|
spinlock_t changed_lock;
|
|
|
|
bool changed;
|
2016-06-22 15:45:52 +00:00
|
|
|
bool initialized;
|
2018-06-25 07:51:48 +00:00
|
|
|
bool removing;
|
2015-03-12 07:44:03 +00:00
|
|
|
atomic_t use_cnt;
|
2012-05-09 15:06:47 +00:00
|
|
|
#ifdef CONFIG_THERMAL
|
|
|
|
struct thermal_zone_device *tzd;
|
2012-10-09 16:55:59 +00:00
|
|
|
struct thermal_cooling_device *tcd;
|
2012-05-09 15:06:47 +00:00
|
|
|
#endif
|
2007-05-03 20:27:45 +00:00
|
|
|
|
|
|
|
#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;
|
2011-01-07 16:28:17 +00:00
|
|
|
struct led_trigger *charging_blink_full_solid_trig;
|
|
|
|
char *charging_blink_full_solid_trig_name;
|
2007-05-03 20:27:45 +00:00
|
|
|
#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;
|
|
|
|
};
|
|
|
|
|
2018-11-05 07:39:09 +00:00
|
|
|
struct power_supply_battery_ocv_table {
|
|
|
|
int ocv; /* microVolts */
|
|
|
|
int capacity; /* percent */
|
|
|
|
};
|
|
|
|
|
2019-12-09 03:56:22 +00:00
|
|
|
struct power_supply_resistance_temp_table {
|
|
|
|
int temp; /* celsius */
|
|
|
|
int resistance; /* internal resistance percent */
|
|
|
|
};
|
|
|
|
|
2018-11-05 07:39:09 +00:00
|
|
|
#define POWER_SUPPLY_OCV_TEMP_MAX 20
|
|
|
|
|
2021-11-16 22:44:28 +00:00
|
|
|
/**
|
|
|
|
* struct power_supply_battery_info - information about batteries
|
|
|
|
* @technology: from the POWER_SUPPLY_TECHNOLOGY_* enum
|
|
|
|
* @energy_full_design_uwh: energy content when fully charged in microwatt
|
|
|
|
* hours
|
|
|
|
* @charge_full_design_uah: charge content when fully charged in microampere
|
|
|
|
* hours
|
|
|
|
* @voltage_min_design_uv: minimum voltage across the poles when the battery
|
|
|
|
* is at minimum voltage level in microvolts. If the voltage drops below this
|
|
|
|
* level the battery will need precharging when using CC/CV charging.
|
|
|
|
* @voltage_max_design_uv: voltage across the poles when the battery is fully
|
|
|
|
* charged in microvolts. This is the "nominal voltage" i.e. the voltage
|
|
|
|
* printed on the label of the battery.
|
|
|
|
* @tricklecharge_current_ua: the tricklecharge current used when trickle
|
|
|
|
* charging the battery in microamperes. This is the charging phase when the
|
|
|
|
* battery is completely empty and we need to carefully trickle in some
|
|
|
|
* charge until we reach the precharging voltage.
|
|
|
|
* @precharge_current_ua: current to use in the precharge phase in microamperes,
|
|
|
|
* the precharge rate is limited by limiting the current to this value.
|
|
|
|
* @precharge_voltage_max_uv: the maximum voltage allowed when precharging in
|
|
|
|
* microvolts. When we pass this voltage we will nominally switch over to the
|
|
|
|
* CC (constant current) charging phase defined by constant_charge_current_ua
|
|
|
|
* and constant_charge_voltage_max_uv.
|
|
|
|
* @charge_term_current_ua: when the current in the CV (constant voltage)
|
|
|
|
* charging phase drops below this value in microamperes the charging will
|
|
|
|
* terminate completely and not restart until the voltage over the battery
|
|
|
|
* poles reach charge_restart_voltage_uv unless we use maintenance charging.
|
|
|
|
* @charge_restart_voltage_uv: when the battery has been fully charged by
|
|
|
|
* CC/CV charging and charging has been disabled, and the voltage subsequently
|
|
|
|
* drops below this value in microvolts, the charging will be restarted
|
|
|
|
* (typically using CV charging).
|
|
|
|
* @overvoltage_limit_uv: If the voltage exceeds the nominal voltage
|
|
|
|
* voltage_max_design_uv and we reach this voltage level, all charging must
|
|
|
|
* stop and emergency procedures take place, such as shutting down the system
|
|
|
|
* in some cases.
|
|
|
|
* @constant_charge_current_max_ua: current in microamperes to use in the CC
|
|
|
|
* (constant current) charging phase. The charging rate is limited
|
|
|
|
* by this current. This is the main charging phase and as the current is
|
|
|
|
* constant into the battery the voltage slowly ascends to
|
|
|
|
* constant_charge_voltage_max_uv.
|
|
|
|
* @constant_charge_voltage_max_uv: voltage in microvolts signifying the end of
|
|
|
|
* the CC (constant current) charging phase and the beginning of the CV
|
|
|
|
* (constant voltage) charging phase.
|
|
|
|
* @factory_internal_resistance_uohm: the internal resistance of the battery
|
|
|
|
* at fabrication time, expressed in microohms. This resistance will vary
|
|
|
|
* depending on the lifetime and charge of the battery, so this is just a
|
|
|
|
* nominal ballpark figure.
|
|
|
|
* @ocv_temp: array indicating the open circuit voltage (OCV) capacity
|
|
|
|
* temperature indices. This is an array of temperatures in degrees Celsius
|
|
|
|
* indicating which capacity table to use for a certain temperature, since
|
|
|
|
* the capacity for reasons of chemistry will be different at different
|
|
|
|
* temperatures. Determining capacity is a multivariate problem and the
|
|
|
|
* temperature is the first variable we determine.
|
|
|
|
* @temp_ambient_alert_min: the battery will go outside of operating conditions
|
|
|
|
* when the ambient temperature goes below this temperature in degrees
|
|
|
|
* Celsius.
|
|
|
|
* @temp_ambient_alert_max: the battery will go outside of operating conditions
|
|
|
|
* when the ambient temperature goes above this temperature in degrees
|
|
|
|
* Celsius.
|
|
|
|
* @temp_alert_min: the battery should issue an alert if the internal
|
|
|
|
* temperature goes below this temperature in degrees Celsius.
|
|
|
|
* @temp_alert_max: the battery should issue an alert if the internal
|
|
|
|
* temperature goes above this temperature in degrees Celsius.
|
|
|
|
* @temp_min: the battery will go outside of operating conditions when
|
|
|
|
* the internal temperature goes below this temperature in degrees Celsius.
|
|
|
|
* Normally this means the system should shut down.
|
|
|
|
* @temp_max: the battery will go outside of operating conditions when
|
|
|
|
* the internal temperature goes above this temperature in degrees Celsius.
|
|
|
|
* Normally this means the system should shut down.
|
|
|
|
* @ocv_table: for each entry in ocv_temp there is a corresponding entry in
|
|
|
|
* ocv_table and a size for each entry in ocv_table_size. These arrays
|
|
|
|
* determine the capacity in percent in relation to the voltage in microvolts
|
|
|
|
* at the indexed temperature.
|
|
|
|
* @ocv_table_size: for each entry in ocv_temp this array is giving the size of
|
|
|
|
* each entry in the array of capacity arrays in ocv_table.
|
|
|
|
* @resist_table: this is a table that correlates a battery temperature to the
|
|
|
|
* expected internal resistance at this temperature. The resistance is given
|
|
|
|
* as a percentage of factory_internal_resistance_uohm. Knowing the
|
|
|
|
* resistance of the battery is usually necessary for calculating the open
|
|
|
|
* circuit voltage (OCV) that is then used with the ocv_table to calculate
|
|
|
|
* the capacity of the battery. The resist_table must be ordered descending
|
|
|
|
* by temperature: highest temperature with lowest resistance first, lowest
|
|
|
|
* temperature with highest resistance last.
|
|
|
|
* @resist_table_size: the number of items in the resist_table.
|
|
|
|
*
|
2017-06-07 18:37:51 +00:00
|
|
|
* 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.
|
2021-11-16 22:44:28 +00:00
|
|
|
*
|
2017-06-07 18:37:51 +00:00
|
|
|
* Its field names must correspond to elements in enum power_supply_property.
|
|
|
|
* The default field value is -EINVAL.
|
2021-11-16 22:44:28 +00:00
|
|
|
*
|
|
|
|
* The charging parameters here assume a CC/CV charging scheme. This method
|
|
|
|
* is most common with Lithium Ion batteries (other methods are possible) and
|
|
|
|
* looks as follows:
|
|
|
|
*
|
|
|
|
* ^ Battery voltage
|
|
|
|
* | --- overvoltage_limit_uv
|
|
|
|
* |
|
|
|
|
* | ...................................................
|
|
|
|
* | .. constant_charge_voltage_max_uv
|
|
|
|
* | ..
|
|
|
|
* | .
|
|
|
|
* | .
|
|
|
|
* | .
|
|
|
|
* | .
|
|
|
|
* | .
|
|
|
|
* | .. precharge_voltage_max_uv
|
|
|
|
* | ..
|
|
|
|
* |. (trickle charging)
|
|
|
|
* +------------------------------------------------------------------> time
|
|
|
|
*
|
|
|
|
* ^ Current into the battery
|
|
|
|
* |
|
|
|
|
* | ............. constant_charge_current_max_ua
|
|
|
|
* | . .
|
|
|
|
* | . .
|
|
|
|
* | . .
|
|
|
|
* | . .
|
|
|
|
* | . ..
|
|
|
|
* | . ....
|
|
|
|
* | . .....
|
|
|
|
* | ... precharge_current_ua ....... charge_term_current_ua
|
|
|
|
* | . .
|
|
|
|
* | . .
|
|
|
|
* |.... tricklecharge_current_ua .
|
|
|
|
* | .
|
|
|
|
* +-----------------------------------------------------------------> time
|
|
|
|
*
|
|
|
|
* These diagrams are synchronized on time and the voltage and current
|
|
|
|
* follow each other.
|
|
|
|
*
|
|
|
|
* With CC/CV charging commence over time like this for an empty battery:
|
|
|
|
*
|
|
|
|
* 1. When the battery is completely empty it may need to be charged with
|
|
|
|
* an especially small current so that electrons just "trickle in",
|
|
|
|
* this is the tricklecharge_current_ua.
|
|
|
|
*
|
|
|
|
* 2. Next a small initial pre-charge current (precharge_current_ua)
|
|
|
|
* is applied if the voltage is below precharge_voltage_max_uv until we
|
|
|
|
* reach precharge_voltage_max_uv. CAUTION: in some texts this is referred
|
|
|
|
* to as "trickle charging" but the use in the Linux kernel is different
|
|
|
|
* see below!
|
|
|
|
*
|
|
|
|
* 3. Then the main charging current is applied, which is called the constant
|
|
|
|
* current (CC) phase. A current regulator is set up to allow
|
|
|
|
* constant_charge_current_max_ua of current to flow into the battery.
|
|
|
|
* The chemical reaction in the battery will make the voltage go up as
|
|
|
|
* charge goes into the battery. This current is applied until we reach
|
|
|
|
* the constant_charge_voltage_max_uv voltage.
|
|
|
|
*
|
|
|
|
* 4. At this voltage we switch over to the constant voltage (CV) phase. This
|
|
|
|
* means we allow current to go into the battery, but we keep the voltage
|
|
|
|
* fixed. This current will continue to charge the battery while keeping
|
|
|
|
* the voltage the same. A chemical reaction in the battery goes on
|
|
|
|
* storing energy without affecting the voltage. Over time the current
|
|
|
|
* will slowly drop and when we reach charge_term_current_ua we will
|
|
|
|
* end the constant voltage phase.
|
|
|
|
*
|
|
|
|
* After this the battery is fully charged, and if we do not support maintenance
|
|
|
|
* charging, the charging will not restart until power dissipation makes the
|
|
|
|
* voltage fall so that we reach charge_restart_voltage_uv and at this point
|
|
|
|
* we restart charging at the appropriate phase, usually this will be inside
|
|
|
|
* the CV phase.
|
|
|
|
*
|
|
|
|
* If we support maintenance charging the voltage is however kept high after
|
|
|
|
* the CV phase with a very low current. This is meant to let the same charge
|
|
|
|
* go in for usage while the charger is still connected, mainly for
|
|
|
|
* dissipation for the power consuming entity while connected to the
|
|
|
|
* charger.
|
|
|
|
*
|
|
|
|
* All charging MUST terminate if the overvoltage_limit_uv is ever reached.
|
|
|
|
* Overcharging Lithium Ion cells can be DANGEROUS and lead to fire or
|
|
|
|
* explosions.
|
|
|
|
*
|
|
|
|
* The power supply class itself doesn't use this struct as of now.
|
2017-06-07 18:37:51 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
struct power_supply_battery_info {
|
2021-11-16 22:44:28 +00:00
|
|
|
unsigned int technology;
|
|
|
|
int energy_full_design_uwh;
|
|
|
|
int charge_full_design_uah;
|
|
|
|
int voltage_min_design_uv;
|
|
|
|
int voltage_max_design_uv;
|
|
|
|
int tricklecharge_current_ua;
|
|
|
|
int precharge_current_ua;
|
|
|
|
int precharge_voltage_max_uv;
|
|
|
|
int charge_term_current_ua;
|
|
|
|
int charge_restart_voltage_uv;
|
|
|
|
int overvoltage_limit_uv;
|
|
|
|
int constant_charge_current_max_ua;
|
|
|
|
int constant_charge_voltage_max_uv;
|
|
|
|
int factory_internal_resistance_uohm;
|
|
|
|
int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];
|
|
|
|
int temp_ambient_alert_min;
|
|
|
|
int temp_ambient_alert_max;
|
|
|
|
int temp_alert_min;
|
|
|
|
int temp_alert_max;
|
|
|
|
int temp_min;
|
|
|
|
int temp_max;
|
2018-11-05 07:39:09 +00:00
|
|
|
struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
|
|
|
|
int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
|
2019-12-09 03:56:22 +00:00
|
|
|
struct power_supply_resistance_temp_table *resist_table;
|
|
|
|
int resist_table_size;
|
2017-06-07 18:37:51 +00:00
|
|
|
};
|
|
|
|
|
2013-11-19 10:18:03 +00:00
|
|
|
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);
|
2021-03-08 13:31:46 +00:00
|
|
|
#if IS_ENABLED(CONFIG_POWER_SUPPLY)
|
2013-02-01 19:40:17 +00:00
|
|
|
extern struct power_supply *power_supply_get_by_name(const char *name);
|
2015-03-12 07:44:12 +00:00
|
|
|
extern void power_supply_put(struct power_supply *psy);
|
2021-03-08 13:31:46 +00:00
|
|
|
#else
|
|
|
|
static inline void power_supply_put(struct power_supply *psy) {}
|
|
|
|
static inline struct power_supply *power_supply_get_by_name(const char *name)
|
|
|
|
{ return NULL; }
|
|
|
|
#endif
|
2013-11-24 16:49:29 +00:00
|
|
|
#ifdef CONFIG_OF
|
|
|
|
extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
|
|
|
|
const char *property);
|
2015-06-09 21:37:56 +00:00
|
|
|
extern struct power_supply *devm_power_supply_get_by_phandle(
|
|
|
|
struct device *dev, const char *property);
|
2013-11-24 16:49:29 +00:00
|
|
|
#else /* !CONFIG_OF */
|
|
|
|
static inline struct power_supply *
|
|
|
|
power_supply_get_by_phandle(struct device_node *np, const char *property)
|
|
|
|
{ return NULL; }
|
2015-06-09 21:37:56 +00:00
|
|
|
static inline struct power_supply *
|
|
|
|
devm_power_supply_get_by_phandle(struct device *dev, const char *property)
|
|
|
|
{ return NULL; }
|
2013-11-24 16:49:29 +00:00
|
|
|
#endif /* CONFIG_OF */
|
2017-06-07 18:37:51 +00:00
|
|
|
|
|
|
|
extern int power_supply_get_battery_info(struct power_supply *psy,
|
2021-12-15 01:01:18 +00:00
|
|
|
struct power_supply_battery_info **info_out);
|
2018-11-05 07:39:09 +00:00
|
|
|
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);
|
2019-12-09 03:56:22 +00:00
|
|
|
extern int
|
|
|
|
power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
|
|
|
|
int table_len, int temp);
|
2007-05-03 20:27:45 +00:00
|
|
|
extern void power_supply_changed(struct power_supply *psy);
|
|
|
|
extern int power_supply_am_i_supplied(struct power_supply *psy);
|
2017-08-15 20:04:56 +00:00
|
|
|
extern int power_supply_set_input_current_limit_from_supplier(
|
|
|
|
struct power_supply *psy);
|
2009-07-23 18:35:53 +00:00
|
|
|
extern int power_supply_set_battery_charged(struct power_supply *psy);
|
2007-05-03 20:27:45 +00:00
|
|
|
|
power_supply: Make the core a boolean instead of a tristate
On Mon, Apr 02, 2012 at 01:53:23PM +1000, Benjamin Herrenschmidt wrote:
> > drivers/built-in.o: In function `.nouveau_pm_trigger':
> > (.text+0xa56e8): undefined reference to `.power_supply_is_system_supplied'
> >
> > nouveau probably needs to depends on CONFIG_POWER_SUPPLY to force a module
> > build with the latter is =m
>
> Ok, not that trivial...
>
> The problem is more like POWER_SUPPLY should be a bool, not a tristate.
>
> If you think about it: you don't want things like nouveau to depend on a
> random subsystem like that, people will never get it. In fact,
> POWER_SUPPLY provides empty inline stubs when not enabled, so that's
> really designed to not have depends...
>
> However that -cannot- work if POWER_SUPPLY is modular and the drivers
> who use it are not.
>
> The only fixes here that make sense I can think of
> that don't also involve Kconfig horrors are:
>
> - Ugly: in power_supply.h, use the extern variant if
>
> defined(CONFIG_POWER_SUPPLY) ||
> (defined(CONFIG_POWER_SUPPLY_MODULE) && defined(MODULE))
>
> IE. use the stub if power supply is a module and what is being built is
> built-in. Of course that's not only ugly, it somewhat sucks from a user
> perspective as the subsystem now exists but can't be used by some
> drivers...
>
> - Better: Just make the bloody thing a bool :-) The power supply
> framework itself is small enough, just make it a boolean option and
> avoid the problem entirely. The actual power supply sub drivers can
> remain modular of course.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-05-05 04:06:19 +00:00
|
|
|
#ifdef CONFIG_POWER_SUPPLY
|
2008-08-26 20:09:59 +00:00
|
|
|
extern int power_supply_is_system_supplied(void);
|
|
|
|
#else
|
|
|
|
static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
|
|
|
|
#endif
|
|
|
|
|
2015-03-12 07:44:03 +00:00
|
|
|
extern int power_supply_get_property(struct power_supply *psy,
|
|
|
|
enum power_supply_property psp,
|
|
|
|
union power_supply_propval *val);
|
2021-03-27 18:28:09 +00:00
|
|
|
#if IS_ENABLED(CONFIG_POWER_SUPPLY)
|
2015-03-12 07:44:03 +00:00
|
|
|
extern int power_supply_set_property(struct power_supply *psy,
|
|
|
|
enum power_supply_property psp,
|
|
|
|
const union power_supply_propval *val);
|
2021-03-27 18:28:09 +00:00
|
|
|
#else
|
|
|
|
static inline int power_supply_set_property(struct power_supply *psy,
|
|
|
|
enum power_supply_property psp,
|
|
|
|
const union power_supply_propval *val)
|
|
|
|
{ return 0; }
|
|
|
|
#endif
|
2015-03-12 07:44:03 +00:00
|
|
|
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);
|
2015-03-12 07:44:11 +00:00
|
|
|
|
|
|
|
extern struct power_supply *__must_check
|
|
|
|
power_supply_register(struct device *parent,
|
|
|
|
const struct power_supply_desc *desc,
|
2015-03-12 07:44:02 +00:00
|
|
|
const struct power_supply_config *cfg);
|
2015-03-12 07:44:11 +00:00
|
|
|
extern struct power_supply *__must_check
|
|
|
|
power_supply_register_no_ws(struct device *parent,
|
|
|
|
const struct power_supply_desc *desc,
|
2015-03-12 07:44:02 +00:00
|
|
|
const struct power_supply_config *cfg);
|
2015-03-12 07:44:11 +00:00
|
|
|
extern struct power_supply *__must_check
|
|
|
|
devm_power_supply_register(struct device *parent,
|
|
|
|
const struct power_supply_desc *desc,
|
2015-03-12 07:44:02 +00:00
|
|
|
const struct power_supply_config *cfg);
|
2015-03-12 07:44:11 +00:00
|
|
|
extern struct power_supply *__must_check
|
|
|
|
devm_power_supply_register_no_ws(struct device *parent,
|
|
|
|
const struct power_supply_desc *desc,
|
2015-03-12 07:44:02 +00:00
|
|
|
const struct power_supply_config *cfg);
|
2007-05-03 20:27:45 +00:00
|
|
|
extern void power_supply_unregister(struct power_supply *psy);
|
2011-12-07 17:15:45 +00:00
|
|
|
extern int power_supply_powers(struct power_supply *psy, struct device *dev);
|
2007-05-03 20:27:45 +00:00
|
|
|
|
2018-02-07 14:58:27 +00:00
|
|
|
#define to_power_supply(device) container_of(device, struct power_supply, dev)
|
|
|
|
|
2015-03-12 07:44:01 +00:00
|
|
|
extern void *power_supply_get_drvdata(struct power_supply *psy);
|
2007-05-03 20:27:45 +00:00
|
|
|
/* For APM emulation, think legacy userspace. */
|
|
|
|
extern struct class *power_supply_class;
|
|
|
|
|
2011-01-25 19:10:06 +00:00
|
|
|
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:
|
2017-06-07 18:37:52 +00:00
|
|
|
case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
|
|
|
|
case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
|
2012-05-06 12:46:44 +00:00
|
|
|
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
|
2012-07-30 07:19:21 +00:00
|
|
|
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
|
2011-01-25 19:10:06 +00:00
|
|
|
case POWER_SUPPLY_PROP_CURRENT_MAX:
|
|
|
|
case POWER_SUPPLY_PROP_CURRENT_NOW:
|
|
|
|
case POWER_SUPPLY_PROP_CURRENT_AVG:
|
2014-08-27 18:14:08 +00:00
|
|
|
case POWER_SUPPLY_PROP_CURRENT_BOOT:
|
2021-02-09 09:58:43 +00:00
|
|
|
return true;
|
2011-01-25 19:10:06 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2021-02-09 09:58:43 +00:00
|
|
|
return false;
|
2011-01-25 19:10:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
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:
|
2012-04-10 10:51:20 +00:00
|
|
|
case POWER_SUPPLY_PROP_VOLTAGE_OCV:
|
2014-08-27 18:14:08 +00:00
|
|
|
case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
|
2012-05-06 12:46:44 +00:00
|
|
|
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
|
2012-07-30 07:19:21 +00:00
|
|
|
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
|
2011-03-01 00:55:31 +00:00
|
|
|
case POWER_SUPPLY_PROP_POWER_NOW:
|
2021-02-09 09:58:43 +00:00
|
|
|
return true;
|
2011-01-25 19:10:06 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2021-02-09 09:58:43 +00:00
|
|
|
return false;
|
2011-01-25 19:10:06 +00:00
|
|
|
}
|
|
|
|
|
2019-06-12 08:44:04 +00:00
|
|
|
#ifdef CONFIG_POWER_SUPPLY_HWMON
|
|
|
|
int power_supply_add_hwmon_sysfs(struct power_supply *psy);
|
|
|
|
void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
|
|
|
|
#else
|
|
|
|
static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline
|
|
|
|
void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
|
|
|
|
#endif
|
|
|
|
|
2021-11-23 23:27:02 +00:00
|
|
|
#ifdef CONFIG_SYSFS
|
|
|
|
ssize_t power_supply_charge_behaviour_show(struct device *dev,
|
|
|
|
unsigned int available_behaviours,
|
|
|
|
enum power_supply_charge_behaviour behaviour,
|
|
|
|
char *buf);
|
|
|
|
|
|
|
|
int power_supply_charge_behaviour_parse(unsigned int available_behaviours, const char *buf);
|
2022-01-08 15:31:58 +00:00
|
|
|
#else
|
|
|
|
static inline
|
|
|
|
ssize_t power_supply_charge_behaviour_show(struct device *dev,
|
|
|
|
unsigned int available_behaviours,
|
|
|
|
enum power_supply_charge_behaviour behaviour,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int power_supply_charge_behaviour_parse(unsigned int available_behaviours,
|
|
|
|
const char *buf)
|
|
|
|
{
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
2021-11-23 23:27:02 +00:00
|
|
|
#endif
|
|
|
|
|
2007-05-03 20:27:45 +00:00
|
|
|
#endif /* __LINUX_POWER_SUPPLY_H__ */
|