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13#ifndef __LINUX_POWER_SUPPLY_H__
14#define __LINUX_POWER_SUPPLY_H__
15
16#include <linux/device.h>
17#include <linux/workqueue.h>
18#include <linux/leds.h>
19#include <linux/spinlock.h>
20#include <linux/notifier.h>
21
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34
35enum {
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
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};
49
50enum {
51 POWER_SUPPLY_HEALTH_UNKNOWN = 0,
52 POWER_SUPPLY_HEALTH_GOOD,
53 POWER_SUPPLY_HEALTH_OVERHEAT,
54 POWER_SUPPLY_HEALTH_DEAD,
55 POWER_SUPPLY_HEALTH_OVERVOLTAGE,
56 POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
57 POWER_SUPPLY_HEALTH_COLD,
58 POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
59 POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
60};
61
62enum {
63 POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0,
64 POWER_SUPPLY_TECHNOLOGY_NiMH,
65 POWER_SUPPLY_TECHNOLOGY_LION,
66 POWER_SUPPLY_TECHNOLOGY_LIPO,
67 POWER_SUPPLY_TECHNOLOGY_LiFe,
68 POWER_SUPPLY_TECHNOLOGY_NiCd,
69 POWER_SUPPLY_TECHNOLOGY_LiMn,
70};
71
72enum {
73 POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0,
74 POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL,
75 POWER_SUPPLY_CAPACITY_LEVEL_LOW,
76 POWER_SUPPLY_CAPACITY_LEVEL_NORMAL,
77 POWER_SUPPLY_CAPACITY_LEVEL_HIGH,
78 POWER_SUPPLY_CAPACITY_LEVEL_FULL,
79};
80
81enum {
82 POWER_SUPPLY_SCOPE_UNKNOWN = 0,
83 POWER_SUPPLY_SCOPE_SYSTEM,
84 POWER_SUPPLY_SCOPE_DEVICE,
85};
86
87enum power_supply_property {
88
89 POWER_SUPPLY_PROP_STATUS = 0,
90 POWER_SUPPLY_PROP_CHARGE_TYPE,
91 POWER_SUPPLY_PROP_HEALTH,
92 POWER_SUPPLY_PROP_PRESENT,
93 POWER_SUPPLY_PROP_ONLINE,
94 POWER_SUPPLY_PROP_AUTHENTIC,
95 POWER_SUPPLY_PROP_TECHNOLOGY,
96 POWER_SUPPLY_PROP_CYCLE_COUNT,
97 POWER_SUPPLY_PROP_VOLTAGE_MAX,
98 POWER_SUPPLY_PROP_VOLTAGE_MIN,
99 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
100 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
101 POWER_SUPPLY_PROP_VOLTAGE_NOW,
102 POWER_SUPPLY_PROP_VOLTAGE_AVG,
103 POWER_SUPPLY_PROP_VOLTAGE_OCV,
104 POWER_SUPPLY_PROP_VOLTAGE_BOOT,
105 POWER_SUPPLY_PROP_CURRENT_MAX,
106 POWER_SUPPLY_PROP_CURRENT_NOW,
107 POWER_SUPPLY_PROP_CURRENT_AVG,
108 POWER_SUPPLY_PROP_CURRENT_BOOT,
109 POWER_SUPPLY_PROP_POWER_NOW,
110 POWER_SUPPLY_PROP_POWER_AVG,
111 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
112 POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN,
113 POWER_SUPPLY_PROP_CHARGE_FULL,
114 POWER_SUPPLY_PROP_CHARGE_EMPTY,
115 POWER_SUPPLY_PROP_CHARGE_NOW,
116 POWER_SUPPLY_PROP_CHARGE_AVG,
117 POWER_SUPPLY_PROP_CHARGE_COUNTER,
118 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
119 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
120 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
121 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
122 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
123 POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
124 POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
125 POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
126 POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN,
127 POWER_SUPPLY_PROP_ENERGY_FULL,
128 POWER_SUPPLY_PROP_ENERGY_EMPTY,
129 POWER_SUPPLY_PROP_ENERGY_NOW,
130 POWER_SUPPLY_PROP_ENERGY_AVG,
131 POWER_SUPPLY_PROP_CAPACITY,
132 POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN,
133 POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX,
134 POWER_SUPPLY_PROP_CAPACITY_LEVEL,
135 POWER_SUPPLY_PROP_TEMP,
136 POWER_SUPPLY_PROP_TEMP_MAX,
137 POWER_SUPPLY_PROP_TEMP_MIN,
138 POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
139 POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
140 POWER_SUPPLY_PROP_TEMP_AMBIENT,
141 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
142 POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
143 POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
144 POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
145 POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
146 POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
147 POWER_SUPPLY_PROP_TYPE,
148 POWER_SUPPLY_PROP_SCOPE,
149 POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
150 POWER_SUPPLY_PROP_CALIBRATE,
151
152 POWER_SUPPLY_PROP_MODEL_NAME,
153 POWER_SUPPLY_PROP_MANUFACTURER,
154 POWER_SUPPLY_PROP_SERIAL_NUMBER,
155};
156
157enum power_supply_type {
158 POWER_SUPPLY_TYPE_UNKNOWN = 0,
159 POWER_SUPPLY_TYPE_BATTERY,
160 POWER_SUPPLY_TYPE_UPS,
161 POWER_SUPPLY_TYPE_MAINS,
162 POWER_SUPPLY_TYPE_USB,
163 POWER_SUPPLY_TYPE_USB_DCP,
164 POWER_SUPPLY_TYPE_USB_CDP,
165 POWER_SUPPLY_TYPE_USB_ACA,
166 POWER_SUPPLY_TYPE_USB_TYPE_C,
167 POWER_SUPPLY_TYPE_USB_PD,
168 POWER_SUPPLY_TYPE_USB_PD_DRP,
169};
170
171enum power_supply_notifier_events {
172 PSY_EVENT_PROP_CHANGED,
173};
174
175union power_supply_propval {
176 int intval;
177 const char *strval;
178};
179
180struct device_node;
181struct power_supply;
182
183
184struct power_supply_config {
185 struct device_node *of_node;
186
187 void *drv_data;
188
189 char **supplied_to;
190 size_t num_supplicants;
191};
192
193
194struct power_supply_desc {
195 const char *name;
196 enum power_supply_type type;
197 enum power_supply_property *properties;
198 size_t num_properties;
199
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204
205
206 int (*get_property)(struct power_supply *psy,
207 enum power_supply_property psp,
208 union power_supply_propval *val);
209 int (*set_property)(struct power_supply *psy,
210 enum power_supply_property psp,
211 const union power_supply_propval *val);
212
213
214
215
216
217 int (*property_is_writeable)(struct power_supply *psy,
218 enum power_supply_property psp);
219 void (*external_power_changed)(struct power_supply *psy);
220 void (*set_charged)(struct power_supply *psy);
221
222
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225
226
227 bool no_thermal;
228
229 int use_for_apm;
230};
231
232struct power_supply {
233 const struct power_supply_desc *desc;
234
235 char **supplied_to;
236 size_t num_supplicants;
237
238 char **supplied_from;
239 size_t num_supplies;
240 struct device_node *of_node;
241
242
243 void *drv_data;
244
245
246 struct device dev;
247 struct work_struct changed_work;
248 struct delayed_work deferred_register_work;
249 spinlock_t changed_lock;
250 bool changed;
251 bool initialized;
252 atomic_t use_cnt;
253#ifdef CONFIG_THERMAL
254 struct thermal_zone_device *tzd;
255 struct thermal_cooling_device *tcd;
256#endif
257
258#ifdef CONFIG_LEDS_TRIGGERS
259 struct led_trigger *charging_full_trig;
260 char *charging_full_trig_name;
261 struct led_trigger *charging_trig;
262 char *charging_trig_name;
263 struct led_trigger *full_trig;
264 char *full_trig_name;
265 struct led_trigger *online_trig;
266 char *online_trig_name;
267 struct led_trigger *charging_blink_full_solid_trig;
268 char *charging_blink_full_solid_trig_name;
269#endif
270};
271
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277
278
279struct power_supply_info {
280 const char *name;
281 int technology;
282 int voltage_max_design;
283 int voltage_min_design;
284 int charge_full_design;
285 int charge_empty_design;
286 int energy_full_design;
287 int energy_empty_design;
288 int use_for_apm;
289};
290
291extern struct atomic_notifier_head power_supply_notifier;
292extern int power_supply_reg_notifier(struct notifier_block *nb);
293extern void power_supply_unreg_notifier(struct notifier_block *nb);
294extern struct power_supply *power_supply_get_by_name(const char *name);
295extern void power_supply_put(struct power_supply *psy);
296#ifdef CONFIG_OF
297extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
298 const char *property);
299extern struct power_supply *devm_power_supply_get_by_phandle(
300 struct device *dev, const char *property);
301#else
302static inline struct power_supply *
303power_supply_get_by_phandle(struct device_node *np, const char *property)
304{ return NULL; }
305static inline struct power_supply *
306devm_power_supply_get_by_phandle(struct device *dev, const char *property)
307{ return NULL; }
308#endif
309extern void power_supply_changed(struct power_supply *psy);
310extern int power_supply_am_i_supplied(struct power_supply *psy);
311extern int power_supply_set_battery_charged(struct power_supply *psy);
312
313#ifdef CONFIG_POWER_SUPPLY
314extern int power_supply_is_system_supplied(void);
315#else
316static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
317#endif
318
319extern int power_supply_get_property(struct power_supply *psy,
320 enum power_supply_property psp,
321 union power_supply_propval *val);
322extern int power_supply_set_property(struct power_supply *psy,
323 enum power_supply_property psp,
324 const union power_supply_propval *val);
325extern int power_supply_property_is_writeable(struct power_supply *psy,
326 enum power_supply_property psp);
327extern void power_supply_external_power_changed(struct power_supply *psy);
328
329extern struct power_supply *__must_check
330power_supply_register(struct device *parent,
331 const struct power_supply_desc *desc,
332 const struct power_supply_config *cfg);
333extern struct power_supply *__must_check
334power_supply_register_no_ws(struct device *parent,
335 const struct power_supply_desc *desc,
336 const struct power_supply_config *cfg);
337extern struct power_supply *__must_check
338devm_power_supply_register(struct device *parent,
339 const struct power_supply_desc *desc,
340 const struct power_supply_config *cfg);
341extern struct power_supply *__must_check
342devm_power_supply_register_no_ws(struct device *parent,
343 const struct power_supply_desc *desc,
344 const struct power_supply_config *cfg);
345extern void power_supply_unregister(struct power_supply *psy);
346extern int power_supply_powers(struct power_supply *psy, struct device *dev);
347
348extern void *power_supply_get_drvdata(struct power_supply *psy);
349
350extern struct class *power_supply_class;
351
352static inline bool power_supply_is_amp_property(enum power_supply_property psp)
353{
354 switch (psp) {
355 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
356 case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
357 case POWER_SUPPLY_PROP_CHARGE_FULL:
358 case POWER_SUPPLY_PROP_CHARGE_EMPTY:
359 case POWER_SUPPLY_PROP_CHARGE_NOW:
360 case POWER_SUPPLY_PROP_CHARGE_AVG:
361 case POWER_SUPPLY_PROP_CHARGE_COUNTER:
362 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
363 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
364 case POWER_SUPPLY_PROP_CURRENT_MAX:
365 case POWER_SUPPLY_PROP_CURRENT_NOW:
366 case POWER_SUPPLY_PROP_CURRENT_AVG:
367 case POWER_SUPPLY_PROP_CURRENT_BOOT:
368 return 1;
369 default:
370 break;
371 }
372
373 return 0;
374}
375
376static inline bool power_supply_is_watt_property(enum power_supply_property psp)
377{
378 switch (psp) {
379 case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
380 case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
381 case POWER_SUPPLY_PROP_ENERGY_FULL:
382 case POWER_SUPPLY_PROP_ENERGY_EMPTY:
383 case POWER_SUPPLY_PROP_ENERGY_NOW:
384 case POWER_SUPPLY_PROP_ENERGY_AVG:
385 case POWER_SUPPLY_PROP_VOLTAGE_MAX:
386 case POWER_SUPPLY_PROP_VOLTAGE_MIN:
387 case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
388 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
389 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
390 case POWER_SUPPLY_PROP_VOLTAGE_AVG:
391 case POWER_SUPPLY_PROP_VOLTAGE_OCV:
392 case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
393 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
394 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
395 case POWER_SUPPLY_PROP_POWER_NOW:
396 return 1;
397 default:
398 break;
399 }
400
401 return 0;
402}
403
404#endif
405