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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
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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
42
43enum {
44 POWER_SUPPLY_CHARGE_TYPE_UNKNOWN = 0,
45 POWER_SUPPLY_CHARGE_TYPE_NONE,
46 POWER_SUPPLY_CHARGE_TYPE_TRICKLE,
47 POWER_SUPPLY_CHARGE_TYPE_FAST,
48 POWER_SUPPLY_CHARGE_TYPE_STANDARD,
49 POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE,
50 POWER_SUPPLY_CHARGE_TYPE_CUSTOM,
51};
52
53enum {
54 POWER_SUPPLY_HEALTH_UNKNOWN = 0,
55 POWER_SUPPLY_HEALTH_GOOD,
56 POWER_SUPPLY_HEALTH_OVERHEAT,
57 POWER_SUPPLY_HEALTH_DEAD,
58 POWER_SUPPLY_HEALTH_OVERVOLTAGE,
59 POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
60 POWER_SUPPLY_HEALTH_COLD,
61 POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
62 POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
63 POWER_SUPPLY_HEALTH_OVERCURRENT,
64};
65
66enum {
67 POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
68 POWER_SUPPLY_TECHNOLOGY_NiMH,
69 POWER_SUPPLY_TECHNOLOGY_LION,
70 POWER_SUPPLY_TECHNOLOGY_LIPO,
71 POWER_SUPPLY_TECHNOLOGY_LiFe,
72 POWER_SUPPLY_TECHNOLOGY_NiCd,
73 POWER_SUPPLY_TECHNOLOGY_LiMn,
74};
75
76enum {
77 POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
78 POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
79 POWER_SUPPLY_CAPACITY_LEVEL_LOW,
80 POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
81 POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
82 POWER_SUPPLY_CAPACITY_LEVEL_FULL,
83};
84
85enum {
86 POWER_SUPPLY_SCOPE_UNKNOWN = 0,
87 POWER_SUPPLY_SCOPE_SYSTEM,
88 POWER_SUPPLY_SCOPE_DEVICE,
89};
90
91enum power_supply_property {
92
93 POWER_SUPPLY_PROP_STATUS = 0,
94 POWER_SUPPLY_PROP_CHARGE_TYPE,
95 POWER_SUPPLY_PROP_HEALTH,
96 POWER_SUPPLY_PROP_PRESENT,
97 POWER_SUPPLY_PROP_ONLINE,
98 POWER_SUPPLY_PROP_AUTHENTIC,
99 POWER_SUPPLY_PROP_TECHNOLOGY,
100 POWER_SUPPLY_PROP_CYCLE_COUNT,
101 POWER_SUPPLY_PROP_VOLTAGE_MAX,
102 POWER_SUPPLY_PROP_VOLTAGE_MIN,
103 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
104 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
105 POWER_SUPPLY_PROP_VOLTAGE_NOW,
106 POWER_SUPPLY_PROP_VOLTAGE_AVG,
107 POWER_SUPPLY_PROP_VOLTAGE_OCV,
108 POWER_SUPPLY_PROP_VOLTAGE_BOOT,
109 POWER_SUPPLY_PROP_CURRENT_MAX,
110 POWER_SUPPLY_PROP_CURRENT_NOW,
111 POWER_SUPPLY_PROP_CURRENT_AVG,
112 POWER_SUPPLY_PROP_CURRENT_BOOT,
113 POWER_SUPPLY_PROP_POWER_NOW,
114 POWER_SUPPLY_PROP_POWER_AVG,
115 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
116 POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
117 POWER_SUPPLY_PROP_CHARGE_FULL,
118 POWER_SUPPLY_PROP_CHARGE_EMPTY,
119 POWER_SUPPLY_PROP_CHARGE_NOW,
120 POWER_SUPPLY_PROP_CHARGE_AVG,
121 POWER_SUPPLY_PROP_CHARGE_COUNTER,
122 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
123 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
124 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
125 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
126 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
127 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
128 POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD,
129 POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD,
130 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
131 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
132 POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
133 POWER_SUPPLY_PROP_ENERGY_FULL,
134 POWER_SUPPLY_PROP_ENERGY_EMPTY,
135 POWER_SUPPLY_PROP_ENERGY_NOW,
136 POWER_SUPPLY_PROP_ENERGY_AVG,
137 POWER_SUPPLY_PROP_CAPACITY,
138 POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN,
139 POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX,
140 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
141 POWER_SUPPLY_PROP_TEMP,
142 POWER_SUPPLY_PROP_TEMP_MAX,
143 POWER_SUPPLY_PROP_TEMP_MIN,
144 POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
145 POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
146 POWER_SUPPLY_PROP_TEMP_AMBIENT,
147 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
148 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
149 POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
150 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
151 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
152 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
153 POWER_SUPPLY_PROP_TYPE,
154 POWER_SUPPLY_PROP_USB_TYPE,
155 POWER_SUPPLY_PROP_SCOPE,
156 POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
157 POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
158 POWER_SUPPLY_PROP_CALIBRATE,
159
160 POWER_SUPPLY_PROP_MODEL_NAME,
161 POWER_SUPPLY_PROP_MANUFACTURER,
162 POWER_SUPPLY_PROP_SERIAL_NUMBER,
163};
164
165enum power_supply_type {
166 POWER_SUPPLY_TYPE_UNKNOWN = 0,
167 POWER_SUPPLY_TYPE_BATTERY,
168 POWER_SUPPLY_TYPE_UPS,
169 POWER_SUPPLY_TYPE_MAINS,
170 POWER_SUPPLY_TYPE_USB,
171 POWER_SUPPLY_TYPE_USB_DCP,
172 POWER_SUPPLY_TYPE_USB_CDP,
173 POWER_SUPPLY_TYPE_USB_ACA,
174 POWER_SUPPLY_TYPE_USB_TYPE_C,
175 POWER_SUPPLY_TYPE_USB_PD,
176 POWER_SUPPLY_TYPE_USB_PD_DRP,
177 POWER_SUPPLY_TYPE_APPLE_BRICK_ID,
178};
179
180enum power_supply_usb_type {
181 POWER_SUPPLY_USB_TYPE_UNKNOWN = 0,
182 POWER_SUPPLY_USB_TYPE_SDP,
183 POWER_SUPPLY_USB_TYPE_DCP,
184 POWER_SUPPLY_USB_TYPE_CDP,
185 POWER_SUPPLY_USB_TYPE_ACA,
186 POWER_SUPPLY_USB_TYPE_C,
187 POWER_SUPPLY_USB_TYPE_PD,
188 POWER_SUPPLY_USB_TYPE_PD_DRP,
189 POWER_SUPPLY_USB_TYPE_PD_PPS,
190 POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID,
191};
192
193enum power_supply_notifier_events {
194 PSY_EVENT_PROP_CHANGED,
195};
196
197union power_supply_propval {
198 int intval;
199 const char *strval;
200};
201
202struct device_node;
203struct power_supply;
204
205
206struct power_supply_config {
207 struct device_node *of_node;
208 struct fwnode_handle *fwnode;
209
210
211 void *drv_data;
212
213
214 const struct attribute_group **attr_grp;
215
216 char **supplied_to;
217 size_t num_supplicants;
218};
219
220
221struct power_supply_desc {
222 const char *name;
223 enum power_supply_type type;
224 enum power_supply_usb_type *usb_types;
225 size_t num_usb_types;
226 enum power_supply_property *properties;
227 size_t num_properties;
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234
235 int (*get_property)(struct power_supply *psy,
236 enum power_supply_property psp,
237 union power_supply_propval *val);
238 int (*set_property)(struct power_supply *psy,
239 enum power_supply_property psp,
240 const union power_supply_propval *val);
241
242
243
244
245
246 int (*property_is_writeable)(struct power_supply *psy,
247 enum power_supply_property psp);
248 void (*external_power_changed)(struct power_supply *psy);
249 void (*set_charged)(struct power_supply *psy);
250
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255
256 bool no_thermal;
257
258 int use_for_apm;
259};
260
261struct power_supply {
262 const struct power_supply_desc *desc;
263
264 char **supplied_to;
265 size_t num_supplicants;
266
267 char **supplied_from;
268 size_t num_supplies;
269 struct device_node *of_node;
270
271
272 void *drv_data;
273
274
275 struct device dev;
276 struct work_struct changed_work;
277 struct delayed_work deferred_register_work;
278 spinlock_t changed_lock;
279 bool changed;
280 bool initialized;
281 bool removing;
282 atomic_t use_cnt;
283#ifdef CONFIG_THERMAL
284 struct thermal_zone_device *tzd;
285 struct thermal_cooling_device *tcd;
286#endif
287
288#ifdef CONFIG_LEDS_TRIGGERS
289 struct led_trigger *charging_full_trig;
290 char *charging_full_trig_name;
291 struct led_trigger *charging_trig;
292 char *charging_trig_name;
293 struct led_trigger *full_trig;
294 char *full_trig_name;
295 struct led_trigger *online_trig;
296 char *online_trig_name;
297 struct led_trigger *charging_blink_full_solid_trig;
298 char *charging_blink_full_solid_trig_name;
299#endif
300};
301
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308
309struct power_supply_info {
310 const char *name;
311 int technology;
312 int voltage_max_design;
313 int voltage_min_design;
314 int charge_full_design;
315 int charge_empty_design;
316 int energy_full_design;
317 int energy_empty_design;
318 int use_for_apm;
319};
320
321struct power_supply_battery_ocv_table {
322 int ocv;
323 int capacity;
324};
325
326#define POWER_SUPPLY_OCV_TEMP_MAX 20
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336
337struct power_supply_battery_info {
338 int energy_full_design_uwh;
339 int charge_full_design_uah;
340 int voltage_min_design_uv;
341 int voltage_max_design_uv;
342 int precharge_current_ua;
343 int charge_term_current_ua;
344 int constant_charge_current_max_ua;
345 int constant_charge_voltage_max_uv;
346 int factory_internal_resistance_uohm;
347 int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];
348 struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
349 int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
350};
351
352extern struct atomic_notifier_head power_supply_notifier;
353extern int power_supply_reg_notifier(struct notifier_block *nb);
354extern void power_supply_unreg_notifier(struct notifier_block *nb);
355extern struct power_supply *power_supply_get_by_name(const char *name);
356extern void power_supply_put(struct power_supply *psy);
357#ifdef CONFIG_OF
358extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
359 const char *property);
360extern struct power_supply *devm_power_supply_get_by_phandle(
361 struct device *dev, const char *property);
362#else
363static inline struct power_supply *
364power_supply_get_by_phandle(struct device_node *np, const char *property)
365{ return NULL; }
366static inline struct power_supply *
367devm_power_supply_get_by_phandle(struct device *dev, const char *property)
368{ return NULL; }
369#endif
370
371extern int power_supply_get_battery_info(struct power_supply *psy,
372 struct power_supply_battery_info *info);
373extern void power_supply_put_battery_info(struct power_supply *psy,
374 struct power_supply_battery_info *info);
375extern int power_supply_ocv2cap_simple(struct power_supply_battery_ocv_table *table,
376 int table_len, int ocv);
377extern struct power_supply_battery_ocv_table *
378power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
379 int temp, int *table_len);
380extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
381 int ocv, int temp);
382extern void power_supply_changed(struct power_supply *psy);
383extern int power_supply_am_i_supplied(struct power_supply *psy);
384extern int power_supply_set_input_current_limit_from_supplier(
385 struct power_supply *psy);
386extern int power_supply_set_battery_charged(struct power_supply *psy);
387
388#ifdef CONFIG_POWER_SUPPLY
389extern int power_supply_is_system_supplied(void);
390#else
391static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
392#endif
393
394extern int power_supply_get_property(struct power_supply *psy,
395 enum power_supply_property psp,
396 union power_supply_propval *val);
397extern int power_supply_set_property(struct power_supply *psy,
398 enum power_supply_property psp,
399 const union power_supply_propval *val);
400extern int power_supply_property_is_writeable(struct power_supply *psy,
401 enum power_supply_property psp);
402extern void power_supply_external_power_changed(struct power_supply *psy);
403
404extern struct power_supply *__must_check
405power_supply_register(struct device *parent,
406 const struct power_supply_desc *desc,
407 const struct power_supply_config *cfg);
408extern struct power_supply *__must_check
409power_supply_register_no_ws(struct device *parent,
410 const struct power_supply_desc *desc,
411 const struct power_supply_config *cfg);
412extern struct power_supply *__must_check
413devm_power_supply_register(struct device *parent,
414 const struct power_supply_desc *desc,
415 const struct power_supply_config *cfg);
416extern struct power_supply *__must_check
417devm_power_supply_register_no_ws(struct device *parent,
418 const struct power_supply_desc *desc,
419 const struct power_supply_config *cfg);
420extern void power_supply_unregister(struct power_supply *psy);
421extern int power_supply_powers(struct power_supply *psy, struct device *dev);
422
423#define to_power_supply(device) container_of(device, struct power_supply, dev)
424
425extern void *power_supply_get_drvdata(struct power_supply *psy);
426
427extern struct class *power_supply_class;
428
429static inline bool power_supply_is_amp_property(enum power_supply_property psp)
430{
431 switch (psp) {
432 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
433 case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
434 case POWER_SUPPLY_PROP_CHARGE_FULL:
435 case POWER_SUPPLY_PROP_CHARGE_EMPTY:
436 case POWER_SUPPLY_PROP_CHARGE_NOW:
437 case POWER_SUPPLY_PROP_CHARGE_AVG:
438 case POWER_SUPPLY_PROP_CHARGE_COUNTER:
439 case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
440 case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
441 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
442 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
443 case POWER_SUPPLY_PROP_CURRENT_MAX:
444 case POWER_SUPPLY_PROP_CURRENT_NOW:
445 case POWER_SUPPLY_PROP_CURRENT_AVG:
446 case POWER_SUPPLY_PROP_CURRENT_BOOT:
447 return 1;
448 default:
449 break;
450 }
451
452 return 0;
453}
454
455static inline bool power_supply_is_watt_property(enum power_supply_property psp)
456{
457 switch (psp) {
458 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
459 case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
460 case POWER_SUPPLY_PROP_ENERGY_FULL:
461 case POWER_SUPPLY_PROP_ENERGY_EMPTY:
462 case POWER_SUPPLY_PROP_ENERGY_NOW:
463 case POWER_SUPPLY_PROP_ENERGY_AVG:
464 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
465 case POWER_SUPPLY_PROP_VOLTAGE_MIN:
466 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
467 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
468 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
469 case POWER_SUPPLY_PROP_VOLTAGE_AVG:
470 case POWER_SUPPLY_PROP_VOLTAGE_OCV:
471 case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
472 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
473 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
474 case POWER_SUPPLY_PROP_POWER_NOW:
475 return 1;
476 default:
477 break;
478 }
479
480 return 0;
481}
482
483#endif
484