1 /* SPDX-License-Identifier: GPL-2.0-only */
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
10 */
11
12 #ifndef __LINUX_POWER_SUPPLY_H__
13 #define __LINUX_POWER_SUPPLY_H__
14
15 #include <linux/device.h>
16 #include <linux/workqueue.h>
17 #include <linux/leds.h>
18 #include <linux/spinlock.h>
19 #include <linux/notifier.h>
20 #include <linux/android_kabi.h>
21
22 /*
23 * All voltages, currents, charges, energies, time and temperatures in uV,
24 * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
25 * stated. It's driver's job to convert its raw values to units in which
26 * this class operates.
27 */
28
29 /*
30 * For systems where the charger determines the maximum battery capacity
31 * the min and max fields should be used to present these values to user
32 * space. Unused/unknown fields will not appear in sysfs.
33 */
34
35 enum {
36 POWER_SUPPLY_STATUS_UNKNOWN = 0,
37 POWER_SUPPLY_STATUS_CHARGING,
38 POWER_SUPPLY_STATUS_DISCHARGING,
39 POWER_SUPPLY_STATUS_NOT_CHARGING,
40 POWER_SUPPLY_STATUS_FULL,
41 };
42
43 /* What algorithm is the charger using? */
44 enum {
45 POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
46 POWER_SUPPLY_CHARGE_TYPE_NONE,
47 POWER_SUPPLY_CHARGE_TYPE_TRICKLE, /* slow speed */
48 POWER_SUPPLY_CHARGE_TYPE_FAST, /* fast speed */
49 POWER_SUPPLY_CHARGE_TYPE_STANDARD, /* normal speed */
50 POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE, /* dynamically adjusted speed */
51 POWER_SUPPLY_CHARGE_TYPE_CUSTOM, /* use CHARGE_CONTROL_* props */
52 POWER_SUPPLY_CHARGE_TYPE_LONGLIFE, /* slow speed, longer life */
53
54 /*
55 * force to 50 to minimize the chances of userspace binary
56 * incompatibility on newer upstream kernels
57 */
58 POWER_SUPPLY_CHARGE_TYPE_TAPER = 50, /* charging in CV phase */
59 };
60
61 enum {
62 POWER_SUPPLY_HEALTH_UNKNOWN = 0,
63 POWER_SUPPLY_HEALTH_GOOD,
64 POWER_SUPPLY_HEALTH_OVERHEAT,
65 POWER_SUPPLY_HEALTH_DEAD,
66 POWER_SUPPLY_HEALTH_OVERVOLTAGE,
67 POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
68 POWER_SUPPLY_HEALTH_COLD,
69 POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
70 POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
71 POWER_SUPPLY_HEALTH_OVERCURRENT,
72 POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
73 POWER_SUPPLY_HEALTH_WARM,
74 POWER_SUPPLY_HEALTH_COOL,
75 POWER_SUPPLY_HEALTH_HOT,
76 };
77
78 enum {
79 POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
80 POWER_SUPPLY_TECHNOLOGY_NiMH,
81 POWER_SUPPLY_TECHNOLOGY_LION,
82 POWER_SUPPLY_TECHNOLOGY_LIPO,
83 POWER_SUPPLY_TECHNOLOGY_LiFe,
84 POWER_SUPPLY_TECHNOLOGY_NiCd,
85 POWER_SUPPLY_TECHNOLOGY_LiMn,
86 };
87
88 enum {
89 POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
90 POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
91 POWER_SUPPLY_CAPACITY_LEVEL_LOW,
92 POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
93 POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
94 POWER_SUPPLY_CAPACITY_LEVEL_FULL,
95 };
96
97 enum {
98 POWER_SUPPLY_SCOPE_UNKNOWN = 0,
99 POWER_SUPPLY_SCOPE_SYSTEM,
100 POWER_SUPPLY_SCOPE_DEVICE,
101 };
102
103 enum power_supply_property {
104 /* Properties of type `int' */
105 POWER_SUPPLY_PROP_STATUS = 0,
106 POWER_SUPPLY_PROP_CHARGE_TYPE,
107 POWER_SUPPLY_PROP_HEALTH,
108 POWER_SUPPLY_PROP_PRESENT,
109 POWER_SUPPLY_PROP_ONLINE,
110 POWER_SUPPLY_PROP_AUTHENTIC,
111 POWER_SUPPLY_PROP_TECHNOLOGY,
112 POWER_SUPPLY_PROP_CYCLE_COUNT,
113 POWER_SUPPLY_PROP_VOLTAGE_MAX,
114 POWER_SUPPLY_PROP_VOLTAGE_MIN,
115 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
116 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
117 POWER_SUPPLY_PROP_VOLTAGE_NOW,
118 POWER_SUPPLY_PROP_VOLTAGE_AVG,
119 POWER_SUPPLY_PROP_VOLTAGE_OCV,
120 POWER_SUPPLY_PROP_VOLTAGE_BOOT,
121 POWER_SUPPLY_PROP_CURRENT_MAX,
122 POWER_SUPPLY_PROP_CURRENT_NOW,
123 POWER_SUPPLY_PROP_CURRENT_AVG,
124 POWER_SUPPLY_PROP_CURRENT_BOOT,
125 POWER_SUPPLY_PROP_POWER_NOW,
126 POWER_SUPPLY_PROP_POWER_AVG,
127 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
128 POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
129 POWER_SUPPLY_PROP_CHARGE_FULL,
130 POWER_SUPPLY_PROP_CHARGE_EMPTY,
131 POWER_SUPPLY_PROP_CHARGE_NOW,
132 POWER_SUPPLY_PROP_CHARGE_AVG,
133 POWER_SUPPLY_PROP_CHARGE_COUNTER,
134 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
135 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
136 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
137 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
138 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
139 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
140 POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD, /* in percents! */
141 POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD, /* in percents! */
142 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
143 POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT,
144 POWER_SUPPLY_PROP_INPUT_POWER_LIMIT,
145 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
146 POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
147 POWER_SUPPLY_PROP_ENERGY_FULL,
148 POWER_SUPPLY_PROP_ENERGY_EMPTY,
149 POWER_SUPPLY_PROP_ENERGY_NOW,
150 POWER_SUPPLY_PROP_ENERGY_AVG,
151 POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
152 POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
153 POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
154 POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN, /* in percents! */
155 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
156 POWER_SUPPLY_PROP_TEMP,
157 POWER_SUPPLY_PROP_TEMP_MAX,
158 POWER_SUPPLY_PROP_TEMP_MIN,
159 POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
160 POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
161 POWER_SUPPLY_PROP_TEMP_AMBIENT,
162 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
163 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
164 POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
165 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
166 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
167 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
168 POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
169 POWER_SUPPLY_PROP_USB_TYPE,
170 POWER_SUPPLY_PROP_SCOPE,
171 POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
172 POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
173 POWER_SUPPLY_PROP_CALIBRATE,
174 POWER_SUPPLY_PROP_MANUFACTURE_YEAR,
175 POWER_SUPPLY_PROP_MANUFACTURE_MONTH,
176 POWER_SUPPLY_PROP_MANUFACTURE_DAY,
177 #if defined(CONFIG_NO_GKI)
178 /* Charge pump properties */
179 POWER_SUPPLY_PROP_CP_ALARM_STATUS,
180 POWER_SUPPLY_PROP_CP_BAT_OVP_ALARM,
181 POWER_SUPPLY_PROP_CP_BAT_OCP_ALARM,
182 POWER_SUPPLY_PROP_CP_BAT_UCP_ALARM,
183 POWER_SUPPLY_PROP_CP_BUS_OVP_ALARM,
184 POWER_SUPPLY_PROP_CP_BUS_OCP_ALARM,
185 POWER_SUPPLY_PROP_CP_BAT_THERM_ALARM,
186 POWER_SUPPLY_PROP_CP_BUS_THERM_ALARM,
187 POWER_SUPPLY_PROP_CP_DIE_THERM_ALARM,
188 POWER_SUPPLY_PROP_CP_FAULT_STATUS,
189 POWER_SUPPLY_PROP_CP_BAT_OVP_FAULT,
190 POWER_SUPPLY_PROP_CP_BAT_OCP_FAULT,
191 POWER_SUPPLY_PROP_CP_BUS_OVP_FAULT,
192 POWER_SUPPLY_PROP_CP_BUS_OCP_FAULT,
193 POWER_SUPPLY_PROP_CP_BAT_THERM_FAULT,
194 POWER_SUPPLY_PROP_CP_BUS_THERM_FAULT,
195 POWER_SUPPLY_PROP_CP_DIE_THERM_FAULT,
196 POWER_SUPPLY_PROP_CP_VBUS_ERROR_STATUS,
197 POWER_SUPPLY_PROP_CP_VBUS_HERROR_STATUS,
198 POWER_SUPPLY_PROP_CP_VBUS_LERROR_STATUS,
199 POWER_SUPPLY_PROP_CP_CHARGING_ENABLED,
200 POWER_SUPPLY_PROP_CP_WDT_EN,
201 POWER_SUPPLY_PROP_CP_VBUS,
202 POWER_SUPPLY_PROP_CP_IBUS,
203 POWER_SUPPLY_PROP_CP_SWITCHER_EN,
204 POWER_SUPPLY_PROP_CP_BAT_TEMPERATURE,
205 POWER_SUPPLY_PROP_CP_BUS_TEMPERATURE,
206 POWER_SUPPLY_PROP_CP_DIE_TEMPERATURE,
207 POWER_SUPPLY_PROP_CP_ISNS,
208 POWER_SUPPLY_PROP_CP_TOGGLE_SWITCHER,
209 POWER_SUPPLY_PROP_CP_IRQ_STATUS,
210 POWER_SUPPLY_PROP_CP_ILIM,
211 #endif
212 /* Properties of type `const char *' */
213 POWER_SUPPLY_PROP_MODEL_NAME,
214 POWER_SUPPLY_PROP_MANUFACTURER,
215 POWER_SUPPLY_PROP_SERIAL_NUMBER,
216 };
217
218 enum power_supply_type {
219 POWER_SUPPLY_TYPE_UNKNOWN = 0,
220 POWER_SUPPLY_TYPE_BATTERY,
221 POWER_SUPPLY_TYPE_UPS,
222 POWER_SUPPLY_TYPE_MAINS,
223 POWER_SUPPLY_TYPE_USB, /* Standard Downstream Port */
224 POWER_SUPPLY_TYPE_USB_DCP, /* Dedicated Charging Port */
225 POWER_SUPPLY_TYPE_USB_CDP, /* Charging Downstream Port */
226 POWER_SUPPLY_TYPE_USB_ACA, /* Accessory Charger Adapters */
227 POWER_SUPPLY_TYPE_USB_TYPE_C, /* Type C Port */
228 POWER_SUPPLY_TYPE_USB_PD, /* Power Delivery Port */
229 POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */
230 POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
231 POWER_SUPPLY_TYPE_WIRELESS, /* Wireless */
232 #if defined(CONFIG_NO_GKI)
233 POWER_SUPPLY_TYPE_CHARGE_PUMP, /* Charge Pump */
234 #endif
235 };
236
237 enum power_supply_usb_type {
238 POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
239 POWER_SUPPLY_USB_TYPE_SDP, /* Standard Downstream Port */
240 POWER_SUPPLY_USB_TYPE_DCP, /* Dedicated Charging Port */
241 POWER_SUPPLY_USB_TYPE_CDP, /* Charging Downstream Port */
242 POWER_SUPPLY_USB_TYPE_ACA, /* Accessory Charger Adapters */
243 POWER_SUPPLY_USB_TYPE_C, /* Type C Port */
244 POWER_SUPPLY_USB_TYPE_PD, /* Power Delivery Port */
245 POWER_SUPPLY_USB_TYPE_PD_DRP, /* PD Dual Role Port */
246 POWER_SUPPLY_USB_TYPE_PD_PPS, /* PD Programmable Power Supply */
247 POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
248 };
249
250 enum power_supply_notifier_events {
251 PSY_EVENT_PROP_CHANGED,
252 };
253
254 union power_supply_propval {
255 int intval;
256 const char *strval;
257 };
258
259 struct device_node;
260 struct power_supply;
261
262 /* Run-time specific power supply configuration */
263 struct power_supply_config {
264 struct device_node *of_node;
265 struct fwnode_handle *fwnode;
266
267 /* Driver private data */
268 void *drv_data;
269
270 /* Device specific sysfs attributes */
271 const struct attribute_group **attr_grp;
272
273 char **supplied_to;
274 size_t num_supplicants;
275
276 ANDROID_KABI_RESERVE(1);
277 };
278
279 /* Description of power supply */
280 struct power_supply_desc {
281 const char *name;
282 enum power_supply_type type;
283 const enum power_supply_usb_type *usb_types;
284 size_t num_usb_types;
285 const enum power_supply_property *properties;
286 size_t num_properties;
287
288 /*
289 * Functions for drivers implementing power supply class.
290 * These shouldn't be called directly by other drivers for accessing
291 * this power supply. Instead use power_supply_*() functions (for
292 * example power_supply_get_property()).
293 */
294 int (*get_property)(struct power_supply *psy,
295 enum power_supply_property psp,
296 union power_supply_propval *val);
297 int (*set_property)(struct power_supply *psy,
298 enum power_supply_property psp,
299 const union power_supply_propval *val);
300 /*
301 * property_is_writeable() will be called during registration
302 * of power supply. If this happens during device probe then it must
303 * not access internal data of device (because probe did not end).
304 */
305 int (*property_is_writeable)(struct power_supply *psy,
306 enum power_supply_property psp);
307 void (*external_power_changed)(struct power_supply *psy);
308 void (*set_charged)(struct power_supply *psy);
309
310 /*
311 * Set if thermal zone should not be created for this power supply.
312 * For example for virtual supplies forwarding calls to actual
313 * sensors or other supplies.
314 */
315 bool no_thermal;
316 /* For APM emulation, think legacy userspace. */
317 int use_for_apm;
318
319 ANDROID_KABI_RESERVE(1);
320 };
321
322 struct power_supply {
323 const struct power_supply_desc *desc;
324
325 char **supplied_to;
326 size_t num_supplicants;
327
328 char **supplied_from;
329 size_t num_supplies;
330 struct device_node *of_node;
331
332 /* Driver private data */
333 void *drv_data;
334
335 /* private */
336 struct device dev;
337 struct work_struct changed_work;
338 struct delayed_work deferred_register_work;
339 spinlock_t changed_lock;
340 bool changed;
341 bool initialized;
342 bool removing;
343 atomic_t use_cnt;
344 #ifdef CONFIG_THERMAL
345 struct thermal_zone_device *tzd;
346 struct thermal_cooling_device *tcd;
347 #endif
348
349 #ifdef CONFIG_LEDS_TRIGGERS
350 struct led_trigger *charging_full_trig;
351 char *charging_full_trig_name;
352 struct led_trigger *charging_trig;
353 char *charging_trig_name;
354 struct led_trigger *full_trig;
355 char *full_trig_name;
356 struct led_trigger *online_trig;
357 char *online_trig_name;
358 struct led_trigger *charging_blink_full_solid_trig;
359 char *charging_blink_full_solid_trig_name;
360 #endif
361
362 ANDROID_KABI_RESERVE(1);
363 };
364
365 /*
366 * This is recommended structure to specify static power supply parameters.
367 * Generic one, parametrizable for different power supplies. Power supply
368 * class itself does not use it, but that's what implementing most platform
369 * drivers, should try reuse for consistency.
370 */
371
372 struct power_supply_info {
373 const char *name;
374 int technology;
375 int voltage_max_design;
376 int voltage_min_design;
377 int charge_full_design;
378 int charge_empty_design;
379 int energy_full_design;
380 int energy_empty_design;
381 int use_for_apm;
382 };
383
384 struct power_supply_battery_ocv_table {
385 int ocv; /* microVolts */
386 int capacity; /* percent */
387 };
388
389 struct power_supply_resistance_temp_table {
390 int temp; /* celsius */
391 int resistance; /* internal resistance percent */
392 };
393
394 #define POWER_SUPPLY_OCV_TEMP_MAX 20
395
396 /*
397 * This is the recommended struct to manage static battery parameters,
398 * populated by power_supply_get_battery_info(). Most platform drivers should
399 * use these for consistency.
400 * Its field names must correspond to elements in enum power_supply_property.
401 * The default field value is -EINVAL.
402 * Power supply class itself doesn't use this.
403 */
404
405 struct power_supply_battery_info {
406 int energy_full_design_uwh; /* microWatt-hours */
407 int charge_full_design_uah; /* microAmp-hours */
408 int voltage_min_design_uv; /* microVolts */
409 int voltage_max_design_uv; /* microVolts */
410 int tricklecharge_current_ua; /* microAmps */
411 int precharge_current_ua; /* microAmps */
412 int precharge_voltage_max_uv; /* microVolts */
413 int charge_term_current_ua; /* microAmps */
414 int charge_restart_voltage_uv; /* microVolts */
415 int overvoltage_limit_uv; /* microVolts */
416 int constant_charge_current_max_ua; /* microAmps */
417 int constant_charge_voltage_max_uv; /* microVolts */
418 int factory_internal_resistance_uohm; /* microOhms */
419 int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */
420 int temp_ambient_alert_min; /* celsius */
421 int temp_ambient_alert_max; /* celsius */
422 int temp_alert_min; /* celsius */
423 int temp_alert_max; /* celsius */
424 int temp_min; /* celsius */
425 int temp_max; /* celsius */
426 struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
427 int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
428 struct power_supply_resistance_temp_table *resist_table;
429 int resist_table_size;
430
431 ANDROID_KABI_RESERVE(1);
432 };
433
434 extern struct atomic_notifier_head power_supply_notifier;
435 extern int power_supply_reg_notifier(struct notifier_block *nb);
436 extern void power_supply_unreg_notifier(struct notifier_block *nb);
437 extern struct power_supply *power_supply_get_by_name(const char *name);
438 extern void power_supply_put(struct power_supply *psy);
439 #ifdef CONFIG_OF
440 extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
441 const char *property);
442 extern int power_supply_get_by_phandle_array(struct device_node *np,
443 const char *property,
444 struct power_supply **psy,
445 ssize_t size);
446 extern struct power_supply *devm_power_supply_get_by_phandle(
447 struct device *dev, const char *property);
448 #else /* !CONFIG_OF */
449 static inline struct power_supply *
power_supply_get_by_phandle(struct device_node * np,const char * property)450 power_supply_get_by_phandle(struct device_node *np, const char *property)
451 { return NULL; }
452 static inline int
power_supply_get_by_phandle_array(struct device_node * np,const char * property,struct power_supply ** psy,int size)453 power_supply_get_by_phandle_array(struct device_node *np,
454 const char *property,
455 struct power_supply **psy,
456 int size)
457 { return 0; }
458 static inline struct power_supply *
devm_power_supply_get_by_phandle(struct device * dev,const char * property)459 devm_power_supply_get_by_phandle(struct device *dev, const char *property)
460 { return NULL; }
461 #endif /* CONFIG_OF */
462
463 extern int power_supply_get_battery_info(struct power_supply *psy,
464 struct power_supply_battery_info *info);
465 extern void power_supply_put_battery_info(struct power_supply *psy,
466 struct power_supply_battery_info *info);
467 extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
468 int table_len, int ocv);
469 extern struct power_supply_battery_ocv_table *
470 power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
471 int temp, int *table_len);
472 extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
473 int ocv, int temp);
474 extern int
475 power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
476 int table_len, int temp);
477 extern void power_supply_changed(struct power_supply *psy);
478 extern int power_supply_am_i_supplied(struct power_supply *psy);
479 extern int power_supply_set_input_current_limit_from_supplier(
480 struct power_supply *psy);
481 extern int power_supply_set_battery_charged(struct power_supply *psy);
482
483 #ifdef CONFIG_POWER_SUPPLY
484 extern int power_supply_is_system_supplied(void);
485 #else
power_supply_is_system_supplied(void)486 static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
487 #endif
488
489 extern int power_supply_get_property(struct power_supply *psy,
490 enum power_supply_property psp,
491 union power_supply_propval *val);
492 #if IS_ENABLED(CONFIG_POWER_SUPPLY)
493 extern int power_supply_set_property(struct power_supply *psy,
494 enum power_supply_property psp,
495 const union power_supply_propval *val);
496 #else
power_supply_set_property(struct power_supply * psy,enum power_supply_property psp,const union power_supply_propval * val)497 static inline int power_supply_set_property(struct power_supply *psy,
498 enum power_supply_property psp,
499 const union power_supply_propval *val)
500 { return 0; }
501 #endif
502 extern int power_supply_property_is_writeable(struct power_supply *psy,
503 enum power_supply_property psp);
504 extern void power_supply_external_power_changed(struct power_supply *psy);
505
506 extern struct power_supply *__must_check
507 power_supply_register(struct device *parent,
508 const struct power_supply_desc *desc,
509 const struct power_supply_config *cfg);
510 extern struct power_supply *__must_check
511 power_supply_register_no_ws(struct device *parent,
512 const struct power_supply_desc *desc,
513 const struct power_supply_config *cfg);
514 extern struct power_supply *__must_check
515 devm_power_supply_register(struct device *parent,
516 const struct power_supply_desc *desc,
517 const struct power_supply_config *cfg);
518 extern struct power_supply *__must_check
519 devm_power_supply_register_no_ws(struct device *parent,
520 const struct power_supply_desc *desc,
521 const struct power_supply_config *cfg);
522 extern void power_supply_unregister(struct power_supply *psy);
523 extern int power_supply_powers(struct power_supply *psy, struct device *dev);
524
525 #define to_power_supply(device) container_of(device, struct power_supply, dev)
526
527 extern void *power_supply_get_drvdata(struct power_supply *psy);
528 /* For APM emulation, think legacy userspace. */
529 extern struct class *power_supply_class;
530
power_supply_is_amp_property(enum power_supply_property psp)531 static inline bool power_supply_is_amp_property(enum power_supply_property psp)
532 {
533 switch (psp) {
534 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
535 case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
536 case POWER_SUPPLY_PROP_CHARGE_FULL:
537 case POWER_SUPPLY_PROP_CHARGE_EMPTY:
538 case POWER_SUPPLY_PROP_CHARGE_NOW:
539 case POWER_SUPPLY_PROP_CHARGE_AVG:
540 case POWER_SUPPLY_PROP_CHARGE_COUNTER:
541 case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
542 case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
543 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
544 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
545 case POWER_SUPPLY_PROP_CURRENT_MAX:
546 case POWER_SUPPLY_PROP_CURRENT_NOW:
547 case POWER_SUPPLY_PROP_CURRENT_AVG:
548 case POWER_SUPPLY_PROP_CURRENT_BOOT:
549 return 1;
550 default:
551 break;
552 }
553
554 return 0;
555 }
556
power_supply_is_watt_property(enum power_supply_property psp)557 static inline bool power_supply_is_watt_property(enum power_supply_property psp)
558 {
559 switch (psp) {
560 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
561 case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
562 case POWER_SUPPLY_PROP_ENERGY_FULL:
563 case POWER_SUPPLY_PROP_ENERGY_EMPTY:
564 case POWER_SUPPLY_PROP_ENERGY_NOW:
565 case POWER_SUPPLY_PROP_ENERGY_AVG:
566 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
567 case POWER_SUPPLY_PROP_VOLTAGE_MIN:
568 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
569 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
570 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
571 case POWER_SUPPLY_PROP_VOLTAGE_AVG:
572 case POWER_SUPPLY_PROP_VOLTAGE_OCV:
573 case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
574 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
575 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
576 case POWER_SUPPLY_PROP_POWER_NOW:
577 return 1;
578 default:
579 break;
580 }
581
582 return 0;
583 }
584
585 #ifdef CONFIG_POWER_SUPPLY_HWMON
586 int power_supply_add_hwmon_sysfs(struct power_supply *psy);
587 void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
588 #else
power_supply_add_hwmon_sysfs(struct power_supply * psy)589 static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
590 {
591 return 0;
592 }
593
594 static inline
power_supply_remove_hwmon_sysfs(struct power_supply * psy)595 void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
596 #endif
597
598 #endif /* __LINUX_POWER_SUPPLY_H__ */
599