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Merge tag 'staging-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[mirror_ubuntu-jammy-kernel.git] / include / linux / power_supply.h
CommitLineData
a63a5fa9 1/* SPDX-License-Identifier: GPL-2.0-only */
4a11b59d
AV		 2/*
3 * Universal power supply monitor class
4 *
5 * Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
6 * Copyright © 2004 Szabolcs Gyurko
7 * Copyright © 2003 Ian Molton <spyro@f2s.com>
8 *
9 * Modified: 2004, Oct Szabolcs Gyurko
4a11b59d
AV		 10 */
11
12#ifndef __LINUX_POWER_SUPPLY_H__
13#define __LINUX_POWER_SUPPLY_H__
14
297d716f 15#include <linux/device.h>
4a11b59d
AV		 16#include <linux/workqueue.h>
17#include <linux/leds.h>
948dcf96 18#include <linux/spinlock.h>
d36240d2 19#include <linux/notifier.h>
4a11b59d
AV		 20
21/*
22 * All voltages, currents, charges, energies, time and temperatures in uV,
23 * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
24 * stated. It's driver's job to convert its raw values to units in which
25 * this class operates.
26 */
27
28/*
29 * For systems where the charger determines the maximum battery capacity
30 * the min and max fields should be used to present these values to user
31 * space. Unused/unknown fields will not appear in sysfs.
32 */
33
34enum {
35 POWER_SUPPLY_STATUS_UNKNOWN = 0,
36 POWER_SUPPLY_STATUS_CHARGING,
37 POWER_SUPPLY_STATUS_DISCHARGING,
38 POWER_SUPPLY_STATUS_NOT_CHARGING,
39 POWER_SUPPLY_STATUS_FULL,
40};
41
ba6cc850 42/* What algorithm is the charger using? */
ee8076ed
AS		 43enum {
44 POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
45 POWER_SUPPLY_CHARGE_TYPE_NONE,
ba6cc850
NC		 46 POWER_SUPPLY_CHARGE_TYPE_TRICKLE, /* slow speed */
47 POWER_SUPPLY_CHARGE_TYPE_FAST, /* fast speed */
48 POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */
49 POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */
50 POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */
46cbd0b0 51 POWER_SUPPLY_CHARGE_TYPE_LONGLIFE, /* slow speed, longer life */
ee8076ed
AS		 52};
53
4a11b59d
AV		 54enum {
55 POWER_SUPPLY_HEALTH_UNKNOWN = 0,
56 POWER_SUPPLY_HEALTH_GOOD,
57 POWER_SUPPLY_HEALTH_OVERHEAT,
58 POWER_SUPPLY_HEALTH_DEAD,
59 POWER_SUPPLY_HEALTH_OVERVOLTAGE,
60 POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
7e386e6e 61 POWER_SUPPLY_HEALTH_COLD,
a05be991
RP		 62 POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
63 POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
e3e83cc6 64 POWER_SUPPLY_HEALTH_OVERCURRENT,
601c2a54 65 POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
98cc1b93
DM		 66 POWER_SUPPLY_HEALTH_WARM,
67 POWER_SUPPLY_HEALTH_COOL,
68 POWER_SUPPLY_HEALTH_HOT,
4a11b59d
AV		 69};
70
71enum {
72 POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
73 POWER_SUPPLY_TECHNOLOGY_NiMH,
74 POWER_SUPPLY_TECHNOLOGY_LION,
75 POWER_SUPPLY_TECHNOLOGY_LIPO,
76 POWER_SUPPLY_TECHNOLOGY_LiFe,
77 POWER_SUPPLY_TECHNOLOGY_NiCd,
c7cc930f 78 POWER_SUPPLY_TECHNOLOGY_LiMn,
4a11b59d
AV		 79};
80
b294a290
AS		 81enum {
82 POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
83 POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
84 POWER_SUPPLY_CAPACITY_LEVEL_LOW,
85 POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
86 POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
87 POWER_SUPPLY_CAPACITY_LEVEL_FULL,
88};
89
25a0bc2d
JF		 90enum {
91 POWER_SUPPLY_SCOPE_UNKNOWN = 0,
92 POWER_SUPPLY_SCOPE_SYSTEM,
93 POWER_SUPPLY_SCOPE_DEVICE,
94};
95
4a11b59d
AV		 96enum power_supply_property {
97 /* Properties of type `int' */
98 POWER_SUPPLY_PROP_STATUS = 0,
ee8076ed 99 POWER_SUPPLY_PROP_CHARGE_TYPE,
4a11b59d
AV		 100 POWER_SUPPLY_PROP_HEALTH,
101 POWER_SUPPLY_PROP_PRESENT,
102 POWER_SUPPLY_PROP_ONLINE,
b1b56872 103 POWER_SUPPLY_PROP_AUTHENTIC,
4a11b59d 104 POWER_SUPPLY_PROP_TECHNOLOGY,
c955fe8e 105 POWER_SUPPLY_PROP_CYCLE_COUNT,
c7cc930f
DB		 106 POWER_SUPPLY_PROP_VOLTAGE_MAX,
107 POWER_SUPPLY_PROP_VOLTAGE_MIN,
4a11b59d
AV		 108 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
109 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
110 POWER_SUPPLY_PROP_VOLTAGE_NOW,
111 POWER_SUPPLY_PROP_VOLTAGE_AVG,
a2ebfe2f 112 POWER_SUPPLY_PROP_VOLTAGE_OCV,
a8adcc90 113 POWER_SUPPLY_PROP_VOLTAGE_BOOT,
fe3f6d09 114 POWER_SUPPLY_PROP_CURRENT_MAX,
4a11b59d
AV		 115 POWER_SUPPLY_PROP_CURRENT_NOW,
116 POWER_SUPPLY_PROP_CURRENT_AVG,
a8adcc90 117 POWER_SUPPLY_PROP_CURRENT_BOOT,
7faa144a
AS		 118 POWER_SUPPLY_PROP_POWER_NOW,
119 POWER_SUPPLY_PROP_POWER_AVG,
4a11b59d
AV		 120 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
121 POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
122 POWER_SUPPLY_PROP_CHARGE_FULL,
123 POWER_SUPPLY_PROP_CHARGE_EMPTY,
124 POWER_SUPPLY_PROP_CHARGE_NOW,
125 POWER_SUPPLY_PROP_CHARGE_AVG,
8e552c36 126 POWER_SUPPLY_PROP_CHARGE_COUNTER,
3824c477 127 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
2815b786 128 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
3824c477 129 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
2815b786 130 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
ea2ce92e
RP		 131 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
132 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
813cab8f
NC		 133 POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
134 POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
6bb1d272 135 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
a4496d52
EBS		 136 POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
137 POWER_SUPPLY_PROP_INPUT_POWER_LIMIT,
4a11b59d
AV		 138 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
139 POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
140 POWER_SUPPLY_PROP_ENERGY_FULL,
141 POWER_SUPPLY_PROP_ENERGY_EMPTY,
142 POWER_SUPPLY_PROP_ENERGY_NOW,
143 POWER_SUPPLY_PROP_ENERGY_AVG,
144 POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
e908c418
RP		 145 POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
146 POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
bac705ab 147 POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN, /* in percents! */
b294a290 148 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
4a11b59d 149 POWER_SUPPLY_PROP_TEMP,
6bb1d272
JT		 150 POWER_SUPPLY_PROP_TEMP_MAX,
151 POWER_SUPPLY_PROP_TEMP_MIN,
e908c418
RP		 152 POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
153 POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
4a11b59d 154 POWER_SUPPLY_PROP_TEMP_AMBIENT,
e908c418
RP		 155 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
156 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
4a11b59d
AV		 157 POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
158 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
159 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
160 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
5f487cd3 161 POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
cf450041 162 POWER_SUPPLY_PROP_USB_TYPE,
25a0bc2d 163 POWER_SUPPLY_PROP_SCOPE,
413de34a 164 POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
6bb1d272 165 POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
a8adcc90 166 POWER_SUPPLY_PROP_CALIBRATE,
feabe49e
SR		 167 POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
168 POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
169 POWER_SUPPLY_PROP_MANUFACTURE_DAY,
4a11b59d
AV		 170 /* Properties of type `const char *' */
171 POWER_SUPPLY_PROP_MODEL_NAME,
172 POWER_SUPPLY_PROP_MANUFACTURER,
7c2670bb 173 POWER_SUPPLY_PROP_SERIAL_NUMBER,
4a11b59d
AV		 174};
175
176enum power_supply_type {
9b887227
KM		 177 POWER_SUPPLY_TYPE_UNKNOWN = 0,
178 POWER_SUPPLY_TYPE_BATTERY,
4a11b59d
AV		 179 POWER_SUPPLY_TYPE_UPS,
180 POWER_SUPPLY_TYPE_MAINS,
71399aa5
BL		 181 POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */
182 POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */
183 POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */
184 POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */
185 POWER_SUPPLY_TYPE_USB_TYPE_C, /* Type C Port */
186 POWER_SUPPLY_TYPE_USB_PD, /* Power Delivery Port */
187 POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */
188 POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
5ca937fb 189 POWER_SUPPLY_TYPE_WIRELESS, /* Wireless */
4a11b59d
AV		 190};
191
cf450041
AT		 192enum power_supply_usb_type {
193 POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
194 POWER_SUPPLY_USB_TYPE_SDP, /* Standard Downstream Port */
195 POWER_SUPPLY_USB_TYPE_DCP, /* Dedicated Charging Port */
196 POWER_SUPPLY_USB_TYPE_CDP, /* Charging Downstream Port */
197 POWER_SUPPLY_USB_TYPE_ACA, /* Accessory Charger Adapters */
198 POWER_SUPPLY_USB_TYPE_C, /* Type C Port */
199 POWER_SUPPLY_USB_TYPE_PD, /* Power Delivery Port */
200 POWER_SUPPLY_USB_TYPE_PD_DRP, /* PD Dual Role Port */
201 POWER_SUPPLY_USB_TYPE_PD_PPS, /* PD Programmable Power Supply */
202 POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
203};
204
d36240d2
PR		 205enum power_supply_notifier_events {
206 PSY_EVENT_PROP_CHANGED,
207};
208
4a11b59d
AV		 209union power_supply_propval {
210 int intval;
211 const char *strval;
212};
213
b50df95c 214struct device_node;
297d716f 215struct power_supply;
b50df95c 216
297d716f 217/* Run-time specific power supply configuration */
2dc9215d
KK		 218struct power_supply_config {
219 struct device_node *of_node;
ece711b5
AT		 220 struct fwnode_handle *fwnode;
221
2dc9215d
KK		 222 /* Driver private data */
223 void *drv_data;
224
cef8fe6a
SR		 225 /* Device specific sysfs attributes */
226 const struct attribute_group **attr_grp;
227
2dc9215d
KK		 228 char **supplied_to;
229 size_t num_supplicants;
230};
231
297d716f
KK		 232/* Description of power supply */
233struct power_supply_desc {
4a11b59d
AV		 234 const char *name;
235 enum power_supply_type type;
9ba2353b 236 const enum power_supply_usb_type *usb_types;
cf450041 237 size_t num_usb_types;
9ba2353b 238 const enum power_supply_property *properties;
4a11b59d
AV		 239 size_t num_properties;
240
bc154056
KK		 241 /*
242 * Functions for drivers implementing power supply class.
243 * These shouldn't be called directly by other drivers for accessing
244 * this power supply. Instead use power_supply_*() functions (for
245 * example power_supply_get_property()).
246 */
4a11b59d
AV		 247 int (*get_property)(struct power_supply *psy,
248 enum power_supply_property psp,
249 union power_supply_propval *val);
0011d2d4
DM		 250 int (*set_property)(struct power_supply *psy,
251 enum power_supply_property psp,
252 const union power_supply_propval *val);
5c6e3a97
KK		 253 /*
254 * property_is_writeable() will be called during registration
255 * of power supply. If this happens during device probe then it must
256 * not access internal data of device (because probe did not end).
257 */
0011d2d4
DM		 258 int (*property_is_writeable)(struct power_supply *psy,
259 enum power_supply_property psp);
4a11b59d 260 void (*external_power_changed)(struct power_supply *psy);
e5f5ccb6 261 void (*set_charged)(struct power_supply *psy);
4a11b59d 262
a69d82b9
KK		 263 /*
264 * Set if thermal zone should not be created for this power supply.
265 * For example for virtual supplies forwarding calls to actual
266 * sensors or other supplies.
267 */
268 bool no_thermal;
4a11b59d
AV		 269 /* For APM emulation, think legacy userspace. */
270 int use_for_apm;
297d716f
KK		 271};
272
273struct power_supply {
274 const struct power_supply_desc *desc;
275
276 char **supplied_to;
277 size_t num_supplicants;
278
279 char **supplied_from;
280 size_t num_supplies;
281 struct device_node *of_node;
4a11b59d 282
e44ea364
KK		 283 /* Driver private data */
284 void *drv_data;
285
4a11b59d 286 /* private */
297d716f 287 struct device dev;
4a11b59d 288 struct work_struct changed_work;
7f1a57fd 289 struct delayed_work deferred_register_work;
948dcf96
ZM		 290 spinlock_t changed_lock;
291 bool changed;
e3805385 292 bool initialized;
3ffa6583 293 bool removing;
bc154056 294 atomic_t use_cnt;
3be330bf
JT		 295#ifdef CONFIG_THERMAL
296 struct thermal_zone_device *tzd;
952aeeb3 297 struct thermal_cooling_device *tcd;
3be330bf 298#endif
4a11b59d
AV		 299
300#ifdef CONFIG_LEDS_TRIGGERS
301 struct led_trigger *charging_full_trig;
302 char *charging_full_trig_name;
303 struct led_trigger *charging_trig;
304 char *charging_trig_name;
305 struct led_trigger *full_trig;
306 char *full_trig_name;
307 struct led_trigger *online_trig;
308 char *online_trig_name;
6501f728
VK		 309 struct led_trigger *charging_blink_full_solid_trig;
310 char *charging_blink_full_solid_trig_name;
4a11b59d
AV		 311#endif
312};
313
314/*
315 * This is recommended structure to specify static power supply parameters.
316 * Generic one, parametrizable for different power supplies. Power supply
317 * class itself does not use it, but that's what implementing most platform
318 * drivers, should try reuse for consistency.
319 */
320
321struct power_supply_info {
322 const char *name;
323 int technology;
324 int voltage_max_design;
325 int voltage_min_design;
326 int charge_full_design;
327 int charge_empty_design;
328 int energy_full_design;
329 int energy_empty_design;
330 int use_for_apm;
331};
332
3afb50d7
BW		 333struct power_supply_battery_ocv_table {
334 int ocv; /* microVolts */
335 int capacity; /* percent */
336};
337
65dbad71
BW		 338struct power_supply_resistance_temp_table {
339 int temp; /* celsius */
340 int resistance; /* internal resistance percent */
341};
342
3afb50d7
BW		 343#define POWER_SUPPLY_OCV_TEMP_MAX 20
344
c08b1f45
LB		 345/*
346 * This is the recommended struct to manage static battery parameters,
347 * populated by power_supply_get_battery_info(). Most platform drivers should
348 * use these for consistency.
349 * Its field names must correspond to elements in enum power_supply_property.
350 * The default field value is -EINVAL.
351 * Power supply class itself doesn't use this.
352 */
353
354struct power_supply_battery_info {
355 int energy_full_design_uwh; /* microWatt-hours */
356 int charge_full_design_uah; /* microAmp-hours */
357 int voltage_min_design_uv; /* microVolts */
04fb5310 358 int voltage_max_design_uv; /* microVolts */
5a63b7ba 359 int tricklecharge_current_ua; /* microAmps */
c08b1f45 360 int precharge_current_ua; /* microAmps */
5a63b7ba 361 int precharge_voltage_max_uv; /* microVolts */
c08b1f45 362 int charge_term_current_ua; /* microAmps */
5a63b7ba
MV		 363 int charge_restart_voltage_uv; /* microVolts */
364 int overvoltage_limit_uv; /* microVolts */
c08b1f45
LB		 365 int constant_charge_current_max_ua; /* microAmps */
366 int constant_charge_voltage_max_uv; /* microVolts */
86131d93 367 int factory_internal_resistance_uohm; /* microOhms */
3afb50d7 368 int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
00cda13e
DO		 369 int temp_ambient_alert_min; /* celsius */
370 int temp_ambient_alert_max; /* celsius */
371 int temp_alert_min; /* celsius */
372 int temp_alert_max; /* celsius */
373 int temp_min; /* celsius */
374 int temp_max; /* celsius */
3afb50d7
BW		 375 struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
376 int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
65dbad71
BW		 377 struct power_supply_resistance_temp_table *resist_table;
378 int resist_table_size;
c08b1f45
LB		 379};
380
d36240d2
PR		 381extern struct atomic_notifier_head power_supply_notifier;
382extern int power_supply_reg_notifier(struct notifier_block *nb);
383extern void power_supply_unreg_notifier(struct notifier_block *nb);
f38a1644 384#if IS_ENABLED(CONFIG_POWER_SUPPLY)
9f3b795a 385extern struct power_supply *power_supply_get_by_name(const char *name);
1a352462 386extern void power_supply_put(struct power_supply *psy);
f38a1644
RC		 387#else
388static inline void power_supply_put(struct power_supply *psy) {}
389static inline struct power_supply *power_supply_get_by_name(const char *name)
390{ return NULL; }
391#endif
abce9770
SR		 392#ifdef CONFIG_OF
393extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
394 const char *property);
fe27e1df
HG		 395extern struct power_supply *devm_power_supply_get_by_phandle(
396 struct device *dev, const char *property);
abce9770
SR		 397#else /* !CONFIG_OF */
398static inline struct power_supply *
399power_supply_get_by_phandle(struct device_node *np, const char *property)
400{ return NULL; }
fe27e1df
HG		 401static inline struct power_supply *
402devm_power_supply_get_by_phandle(struct device *dev, const char *property)
403{ return NULL; }
abce9770 404#endif /* CONFIG_OF */
c08b1f45
LB		 405
406extern int power_supply_get_battery_info(struct power_supply *psy,
407 struct power_supply_battery_info *info);
3afb50d7
BW		 408extern void power_supply_put_battery_info(struct power_supply *psy,
409 struct power_supply_battery_info *info);
410extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
411 int table_len, int ocv);
412extern struct power_supply_battery_ocv_table *
413power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
414 int temp, int *table_len);
415extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
416 int ocv, int temp);
65dbad71
BW		 417extern int
418power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
419 int table_len, int temp);
4a11b59d
AV		 420extern void power_supply_changed(struct power_supply *psy);
421extern int power_supply_am_i_supplied(struct power_supply *psy);
c3142dd8
HG		 422extern int power_supply_set_input_current_limit_from_supplier(
423 struct power_supply *psy);
e5f5ccb6 424extern int power_supply_set_battery_charged(struct power_supply *psy);
4a11b59d 425
0d4ed4e2 426#ifdef CONFIG_POWER_SUPPLY
942ed161
MG		 427extern int power_supply_is_system_supplied(void);
428#else
429static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
430#endif
431
bc154056
KK		 432extern int power_supply_get_property(struct power_supply *psy,
433 enum power_supply_property psp,
434 union power_supply_propval *val);
c21161e4 435#if IS_ENABLED(CONFIG_POWER_SUPPLY)
bc154056
KK		 436extern int power_supply_set_property(struct power_supply *psy,
437 enum power_supply_property psp,
438 const union power_supply_propval *val);
c21161e4
RC		 439#else
440static inline int power_supply_set_property(struct power_supply *psy,
441 enum power_supply_property psp,
442 const union power_supply_propval *val)
443{ return 0; }
444#endif
bc154056
KK		 445extern int power_supply_property_is_writeable(struct power_supply *psy,
446 enum power_supply_property psp);
447extern void power_supply_external_power_changed(struct power_supply *psy);
297d716f
KK		 448
449extern struct power_supply *__must_check
450power_supply_register(struct device *parent,
451 const struct power_supply_desc *desc,
2dc9215d 452 const struct power_supply_config *cfg);
297d716f
KK		 453extern struct power_supply *__must_check
454power_supply_register_no_ws(struct device *parent,
455 const struct power_supply_desc *desc,
2dc9215d 456 const struct power_supply_config *cfg);
297d716f
KK		 457extern struct power_supply *__must_check
458devm_power_supply_register(struct device *parent,
459 const struct power_supply_desc *desc,
2dc9215d 460 const struct power_supply_config *cfg);
297d716f
KK		 461extern struct power_supply *__must_check
462devm_power_supply_register_no_ws(struct device *parent,
463 const struct power_supply_desc *desc,
2dc9215d 464 const struct power_supply_config *cfg);
4a11b59d 465extern void power_supply_unregister(struct power_supply *psy);
83516651 466extern int power_supply_powers(struct power_supply *psy, struct device *dev);
4a11b59d 467
285995d1
OG		 468#define to_power_supply(device) container_of(device, struct power_supply, dev)
469
e44ea364 470extern void *power_supply_get_drvdata(struct power_supply *psy);
4a11b59d
AV		 471/* For APM emulation, think legacy userspace. */
472extern struct class *power_supply_class;
473
51d07566
RK		 474static inline bool power_supply_is_amp_property(enum power_supply_property psp)
475{
476 switch (psp) {
477 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
478 case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
479 case POWER_SUPPLY_PROP_CHARGE_FULL:
480 case POWER_SUPPLY_PROP_CHARGE_EMPTY:
481 case POWER_SUPPLY_PROP_CHARGE_NOW:
482 case POWER_SUPPLY_PROP_CHARGE_AVG:
483 case POWER_SUPPLY_PROP_CHARGE_COUNTER:
413de34a
LB		 484 case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
485 case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
3824c477 486 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
2815b786 487 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
51d07566
RK		 488 case POWER_SUPPLY_PROP_CURRENT_MAX:
489 case POWER_SUPPLY_PROP_CURRENT_NOW:
490 case POWER_SUPPLY_PROP_CURRENT_AVG:
a8adcc90 491 case POWER_SUPPLY_PROP_CURRENT_BOOT:
25faa935 492 return true;
51d07566
RK		 493 default:
494 break;
495 }
496
25faa935 497 return false;
51d07566
RK		 498}
499
500static inline bool power_supply_is_watt_property(enum power_supply_property psp)
501{
502 switch (psp) {
503 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
504 case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
505 case POWER_SUPPLY_PROP_ENERGY_FULL:
506 case POWER_SUPPLY_PROP_ENERGY_EMPTY:
507 case POWER_SUPPLY_PROP_ENERGY_NOW:
508 case POWER_SUPPLY_PROP_ENERGY_AVG:
509 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
510 case POWER_SUPPLY_PROP_VOLTAGE_MIN:
511 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
512 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
513 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
514 case POWER_SUPPLY_PROP_VOLTAGE_AVG:
a2ebfe2f 515 case POWER_SUPPLY_PROP_VOLTAGE_OCV:
a8adcc90 516 case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
3824c477 517 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
2815b786 518 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
35c9d267 519 case POWER_SUPPLY_PROP_POWER_NOW:
25faa935 520 return true;
51d07566
RK		 521 default:
522 break;
523 }
524
25faa935 525 return false;
51d07566
RK		 526}
527
e67d4dfc
AS		 528#ifdef CONFIG_POWER_SUPPLY_HWMON
529int power_supply_add_hwmon_sysfs(struct power_supply *psy);
530void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
531#else
532static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
533{
534 return 0;
535}
536
537static inline
538void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
539#endif
540
4a11b59d 541#endif /* __LINUX_POWER_SUPPLY_H__ */
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