2019-05-28 17:10:21 +00:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
2007-05-03 20:27:45 +00:00
|
|
|
/*
|
|
|
|
* Universal power supply monitor class
|
|
|
|
*
|
|
|
|
* Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
|
|
|
|
* Copyright © 2004 Szabolcs Gyurko
|
|
|
|
* Copyright © 2003 Ian Molton <spyro@f2s.com>
|
|
|
|
*
|
|
|
|
* Modified: 2004, Oct Szabolcs Gyurko
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __LINUX_POWER_SUPPLY_H__
|
|
|
|
#define __LINUX_POWER_SUPPLY_H__
|
|
|
|
|
2015-03-12 07:44:11 +00:00
|
|
|
#include <linux/device.h>
|
2007-05-03 20:27:45 +00:00
|
|
|
#include <linux/workqueue.h>
|
|
|
|
#include <linux/leds.h>
|
2013-08-02 20:38:02 +00:00
|
|
|
#include <linux/spinlock.h>
|
2013-11-19 10:18:03 +00:00
|
|
|
#include <linux/notifier.h>
|
2007-05-03 20:27:45 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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,
|
|
|
|
};
|
|
|
|
|
2019-04-18 16:43:12 +00:00
|
|
|
/* What algorithm is the charger using? */
|
2009-07-02 13:45:18 +00:00
|
|
|
enum {
|
|
|
|
POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
|
|
|
|
POWER_SUPPLY_CHARGE_TYPE_NONE,
|
2019-04-18 16:43:12 +00:00
|
|
|
POWER_SUPPLY_CHARGE_TYPE_TRICKLE, /* slow speed */
|
|
|
|
POWER_SUPPLY_CHARGE_TYPE_FAST, /* fast speed */
|
|
|
|
POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */
|
|
|
|
POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */
|
|
|
|
POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */
|
2020-07-30 03:26:09 +00:00
|
|
|
POWER_SUPPLY_CHARGE_TYPE_LONGLIFE, /* slow speed, longer life */
|
2009-07-02 13:45:18 +00:00
|
|
|
};
|
|
|
|
|
2007-05-03 20:27:45 +00:00
|
|
|
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,
|
2008-11-30 21:43:21 +00:00
|
|
|
POWER_SUPPLY_HEALTH_COLD,
|
2012-11-30 08:27:46 +00:00
|
|
|
POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
|
|
|
|
POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
|
2019-05-03 17:00:40 +00:00
|
|
|
POWER_SUPPLY_HEALTH_OVERCURRENT,
|
2020-05-13 18:56:00 +00:00
|
|
|
POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
|
2020-07-20 20:43:57 +00:00
|
|
|
POWER_SUPPLY_HEALTH_WARM,
|
|
|
|
POWER_SUPPLY_HEALTH_COOL,
|
|
|
|
POWER_SUPPLY_HEALTH_HOT,
|
2007-05-03 20:27:45 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
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,
|
2008-01-07 01:12:41 +00:00
|
|
|
POWER_SUPPLY_TECHNOLOGY_LiMn,
|
2007-05-03 20:27:45 +00:00
|
|
|
};
|
|
|
|
|
2009-06-30 06:13:01 +00:00
|
|
|
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,
|
|
|
|
};
|
|
|
|
|
2011-12-07 19:24:20 +00:00
|
|
|
enum {
|
|
|
|
POWER_SUPPLY_SCOPE_UNKNOWN = 0,
|
|
|
|
POWER_SUPPLY_SCOPE_SYSTEM,
|
|
|
|
POWER_SUPPLY_SCOPE_DEVICE,
|
|
|
|
};
|
|
|
|
|
2007-05-03 20:27:45 +00:00
|
|
|
enum power_supply_property {
|
|
|
|
/* Properties of type `int' */
|
|
|
|
POWER_SUPPLY_PROP_STATUS = 0,
|
2009-07-02 13:45:18 +00:00
|
|
|
POWER_SUPPLY_PROP_CHARGE_TYPE,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
|
|
POWER_SUPPLY_PROP_ONLINE,
|
2012-08-23 01:20:21 +00:00
|
|
|
POWER_SUPPLY_PROP_AUTHENTIC,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
2009-10-15 10:31:30 +00:00
|
|
|
POWER_SUPPLY_PROP_CYCLE_COUNT,
|
2008-01-07 01:12:41 +00:00
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_MAX,
|
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_MIN,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
|
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
|
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_NOW,
|
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_AVG,
|
2012-04-10 10:51:20 +00:00
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_OCV,
|
2014-08-27 18:14:08 +00:00
|
|
|
POWER_SUPPLY_PROP_VOLTAGE_BOOT,
|
2010-10-04 07:51:38 +00:00
|
|
|
POWER_SUPPLY_PROP_CURRENT_MAX,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_PROP_CURRENT_NOW,
|
|
|
|
POWER_SUPPLY_PROP_CURRENT_AVG,
|
2014-08-27 18:14:08 +00:00
|
|
|
POWER_SUPPLY_PROP_CURRENT_BOOT,
|
2009-03-28 02:23:52 +00:00
|
|
|
POWER_SUPPLY_PROP_POWER_NOW,
|
|
|
|
POWER_SUPPLY_PROP_POWER_AVG,
|
2007-05-03 20:27:45 +00:00
|
|
|
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,
|
2008-05-13 01:46:29 +00:00
|
|
|
POWER_SUPPLY_PROP_CHARGE_COUNTER,
|
2012-05-06 12:46:44 +00:00
|
|
|
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
|
2012-07-30 07:19:21 +00:00
|
|
|
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
|
2012-05-06 12:46:44 +00:00
|
|
|
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
|
2012-07-30 07:19:21 +00:00
|
|
|
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
|
2012-10-09 16:55:29 +00:00
|
|
|
POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
|
|
|
|
POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
|
2019-04-18 16:43:13 +00:00
|
|
|
POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
|
|
|
|
POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
|
2014-07-08 06:04:18 +00:00
|
|
|
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
|
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
|
|
|
POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
|
|
|
|
POWER_SUPPLY_PROP_INPUT_POWER_LIMIT,
|
2007-05-03 20:27:45 +00:00
|
|
|
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! */
|
2012-07-05 11:29:12 +00:00
|
|
|
POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
|
|
|
|
POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
|
2020-05-13 18:55:58 +00:00
|
|
|
POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN, /* in percents! */
|
2009-06-30 06:13:01 +00:00
|
|
|
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_PROP_TEMP,
|
2014-07-08 06:04:18 +00:00
|
|
|
POWER_SUPPLY_PROP_TEMP_MAX,
|
|
|
|
POWER_SUPPLY_PROP_TEMP_MIN,
|
2012-07-05 11:29:12 +00:00
|
|
|
POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
|
|
|
|
POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_PROP_TEMP_AMBIENT,
|
2012-07-05 11:29:12 +00:00
|
|
|
POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
|
|
|
|
POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
|
2007-05-03 20:27:45 +00:00
|
|
|
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,
|
2010-05-18 19:49:51 +00:00
|
|
|
POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
|
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
|
|
|
POWER_SUPPLY_PROP_USB_TYPE,
|
2011-12-07 19:24:20 +00:00
|
|
|
POWER_SUPPLY_PROP_SCOPE,
|
2017-06-07 18:37:52 +00:00
|
|
|
POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
|
2014-07-08 06:04:18 +00:00
|
|
|
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
|
2014-08-27 18:14:08 +00:00
|
|
|
POWER_SUPPLY_PROP_CALIBRATE,
|
2020-05-13 18:55:59 +00:00
|
|
|
POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
|
|
|
|
POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
|
|
|
|
POWER_SUPPLY_PROP_MANUFACTURE_DAY,
|
2007-05-03 20:27:45 +00:00
|
|
|
/* Properties of type `const char *' */
|
|
|
|
POWER_SUPPLY_PROP_MODEL_NAME,
|
|
|
|
POWER_SUPPLY_PROP_MANUFACTURER,
|
2008-01-22 17:46:50 +00:00
|
|
|
POWER_SUPPLY_PROP_SERIAL_NUMBER,
|
2007-05-03 20:27:45 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
enum power_supply_type {
|
2011-12-01 07:08:33 +00:00
|
|
|
POWER_SUPPLY_TYPE_UNKNOWN = 0,
|
|
|
|
POWER_SUPPLY_TYPE_BATTERY,
|
2007-05-03 20:27:45 +00:00
|
|
|
POWER_SUPPLY_TYPE_UPS,
|
|
|
|
POWER_SUPPLY_TYPE_MAINS,
|
2017-05-08 22:02:48 +00:00
|
|
|
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 */
|
2020-08-13 18:34:08 +00:00
|
|
|
POWER_SUPPLY_TYPE_WIRELESS, /* Wireless */
|
2007-05-03 20:27:45 +00:00
|
|
|
};
|
|
|
|
|
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
|
|
|
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 */
|
|
|
|
};
|
|
|
|
|
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
|
|
|
|
|
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.
|
|
|
|
* 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 */
|
2019-02-17 14:29:11 +00:00
|
|
|
int voltage_max_design_uv; /* microVolts */
|
2020-05-08 15:47:20 +00:00
|
|
|
int tricklecharge_current_ua; /* microAmps */
|
2017-06-07 18:37:51 +00:00
|
|
|
int precharge_current_ua; /* microAmps */
|
2020-05-08 15:47:20 +00:00
|
|
|
int precharge_voltage_max_uv; /* microVolts */
|
2017-06-07 18:37:51 +00:00
|
|
|
int charge_term_current_ua; /* microAmps */
|
2020-05-08 15:47:20 +00:00
|
|
|
int charge_restart_voltage_uv; /* microVolts */
|
|
|
|
int overvoltage_limit_uv; /* microVolts */
|
2017-06-07 18:37:51 +00:00
|
|
|
int constant_charge_current_max_ua; /* microAmps */
|
|
|
|
int constant_charge_voltage_max_uv; /* microVolts */
|
2018-11-05 07:39:07 +00:00
|
|
|
int factory_internal_resistance_uohm; /* microOhms */
|
2018-11-05 07:39:09 +00:00
|
|
|
int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
|
2020-08-13 21:34:02 +00:00
|
|
|
int temp_ambient_alert_min; /* celsius */
|
|
|
|
int temp_ambient_alert_max; /* celsius */
|
|
|
|
int temp_alert_min; /* celsius */
|
|
|
|
int temp_alert_max; /* celsius */
|
|
|
|
int temp_min; /* celsius */
|
|
|
|
int temp_max; /* celsius */
|
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);
|
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);
|
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,
|
|
|
|
struct power_supply_battery_info *info);
|
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);
|
|
|
|
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);
|
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:
|
2011-01-25 19:10:06 +00:00
|
|
|
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:
|
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:
|
2011-01-25 19:10:06 +00:00
|
|
|
return 1;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
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
|
|
|
|
|
2007-05-03 20:27:45 +00:00
|
|
|
#endif /* __LINUX_POWER_SUPPLY_H__ */
|