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7e3c0381 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
203d3d4a ZR |
2 | /* |
3 | * thermal.h ($Revision: 0 $) | |
4 | * | |
5 | * Copyright (C) 2008 Intel Corp | |
6 | * Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com> | |
7 | * Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com> | |
203d3d4a ZR |
8 | */ |
9 | ||
10 | #ifndef __THERMAL_H__ | |
11 | #define __THERMAL_H__ | |
12 | ||
a116b5d4 | 13 | #include <linux/of.h> |
203d3d4a ZR |
14 | #include <linux/idr.h> |
15 | #include <linux/device.h> | |
4d0fe749 | 16 | #include <linux/sysfs.h> |
b1569e99 | 17 | #include <linux/workqueue.h> |
af6c9f16 | 18 | #include <uapi/linux/thermal.h> |
203d3d4a | 19 | |
23064088 D |
20 | #define THERMAL_TRIPS_NONE -1 |
21 | #define THERMAL_MAX_TRIPS 12 | |
23064088 | 22 | |
57df8106 ZR |
23 | /* invalid cooling state */ |
24 | #define THERMAL_CSTATE_INVALID -1UL | |
25 | ||
23064088 | 26 | /* No upper/lower limit requirement */ |
a940cb34 | 27 | #define THERMAL_NO_LIMIT ((u32)~0) |
23064088 | 28 | |
6cd9e9f6 KS |
29 | /* Default weight of a bound cooling device */ |
30 | #define THERMAL_WEIGHT_DEFAULT 0 | |
31 | ||
bb431ba2 ZR |
32 | /* use value, which < 0K, to indicate an invalid/uninitialized temperature */ |
33 | #define THERMAL_TEMP_INVALID -274000 | |
34 | ||
23064088 | 35 | /* Unit conversion macros */ |
e866a2e3 RV |
36 | #define DECI_KELVIN_TO_CELSIUS(t) ({ \ |
37 | long _t = (t); \ | |
38 | ((_t-2732 >= 0) ? (_t-2732+5)/10 : (_t-2732-5)/10); \ | |
39 | }) | |
40 | #define CELSIUS_TO_DECI_KELVIN(t) ((t)*10+2732) | |
7b83fd9d AL |
41 | #define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100) |
42 | #define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732) | |
77e337c6 AL |
43 | #define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off)) |
44 | #define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732) | |
23064088 | 45 | |
1f53ef17 ZR |
46 | /* Default Thermal Governor */ |
47 | #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE) | |
48 | #define DEFAULT_THERMAL_GOVERNOR "step_wise" | |
49 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE) | |
50 | #define DEFAULT_THERMAL_GOVERNOR "fair_share" | |
51 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE) | |
52 | #define DEFAULT_THERMAL_GOVERNOR "user_space" | |
6b775e87 JM |
53 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR) |
54 | #define DEFAULT_THERMAL_GOVERNOR "power_allocator" | |
1f53ef17 | 55 | #endif |
a4a15485 | 56 | |
203d3d4a ZR |
57 | struct thermal_zone_device; |
58 | struct thermal_cooling_device; | |
35b11d2e | 59 | struct thermal_instance; |
203d3d4a | 60 | |
6503e5df MG |
61 | enum thermal_device_mode { |
62 | THERMAL_DEVICE_DISABLED = 0, | |
63 | THERMAL_DEVICE_ENABLED, | |
64 | }; | |
65 | ||
66 | enum thermal_trip_type { | |
67 | THERMAL_TRIP_ACTIVE = 0, | |
68 | THERMAL_TRIP_PASSIVE, | |
69 | THERMAL_TRIP_HOT, | |
70 | THERMAL_TRIP_CRITICAL, | |
71 | }; | |
72 | ||
601f3d42 ZR |
73 | enum thermal_trend { |
74 | THERMAL_TREND_STABLE, /* temperature is stable */ | |
75 | THERMAL_TREND_RAISING, /* temperature is raising */ | |
76 | THERMAL_TREND_DROPPING, /* temperature is dropping */ | |
d069015e ZR |
77 | THERMAL_TREND_RAISE_FULL, /* apply highest cooling action */ |
78 | THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */ | |
601f3d42 ZR |
79 | }; |
80 | ||
0e70f466 SP |
81 | /* Thermal notification reason */ |
82 | enum thermal_notify_event { | |
83 | THERMAL_EVENT_UNSPECIFIED, /* Unspecified event */ | |
84 | THERMAL_EVENT_TEMP_SAMPLE, /* New Temperature sample */ | |
85 | THERMAL_TRIP_VIOLATED, /* TRIP Point violation */ | |
86 | THERMAL_TRIP_CHANGED, /* TRIP Point temperature changed */ | |
87 | THERMAL_DEVICE_DOWN, /* Thermal device is down */ | |
88 | THERMAL_DEVICE_UP, /* Thermal device is up after a down event */ | |
89 | THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */ | |
38e44da5 | 90 | THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */ |
0e70f466 SP |
91 | }; |
92 | ||
203d3d4a ZR |
93 | struct thermal_zone_device_ops { |
94 | int (*bind) (struct thermal_zone_device *, | |
95 | struct thermal_cooling_device *); | |
96 | int (*unbind) (struct thermal_zone_device *, | |
97 | struct thermal_cooling_device *); | |
17e8351a | 98 | int (*get_temp) (struct thermal_zone_device *, int *); |
060c034a | 99 | int (*set_trips) (struct thermal_zone_device *, int, int); |
6503e5df MG |
100 | int (*get_mode) (struct thermal_zone_device *, |
101 | enum thermal_device_mode *); | |
102 | int (*set_mode) (struct thermal_zone_device *, | |
103 | enum thermal_device_mode); | |
104 | int (*get_trip_type) (struct thermal_zone_device *, int, | |
105 | enum thermal_trip_type *); | |
17e8351a SH |
106 | int (*get_trip_temp) (struct thermal_zone_device *, int, int *); |
107 | int (*set_trip_temp) (struct thermal_zone_device *, int, int); | |
108 | int (*get_trip_hyst) (struct thermal_zone_device *, int, int *); | |
109 | int (*set_trip_hyst) (struct thermal_zone_device *, int, int); | |
110 | int (*get_crit_temp) (struct thermal_zone_device *, int *); | |
111 | int (*set_emul_temp) (struct thermal_zone_device *, int); | |
601f3d42 ZR |
112 | int (*get_trend) (struct thermal_zone_device *, int, |
113 | enum thermal_trend *); | |
b1569e99 MG |
114 | int (*notify) (struct thermal_zone_device *, int, |
115 | enum thermal_trip_type); | |
203d3d4a ZR |
116 | }; |
117 | ||
118 | struct thermal_cooling_device_ops { | |
6503e5df MG |
119 | int (*get_max_state) (struct thermal_cooling_device *, unsigned long *); |
120 | int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *); | |
121 | int (*set_cur_state) (struct thermal_cooling_device *, unsigned long); | |
35b11d2e JM |
122 | int (*get_requested_power)(struct thermal_cooling_device *, |
123 | struct thermal_zone_device *, u32 *); | |
124 | int (*state2power)(struct thermal_cooling_device *, | |
125 | struct thermal_zone_device *, unsigned long, u32 *); | |
126 | int (*power2state)(struct thermal_cooling_device *, | |
127 | struct thermal_zone_device *, u32, unsigned long *); | |
203d3d4a ZR |
128 | }; |
129 | ||
203d3d4a ZR |
130 | struct thermal_cooling_device { |
131 | int id; | |
132 | char type[THERMAL_NAME_LENGTH]; | |
133 | struct device device; | |
4e5e4705 | 134 | struct device_node *np; |
203d3d4a | 135 | void *devdata; |
8ea22951 | 136 | void *stats; |
5b275ce2 | 137 | const struct thermal_cooling_device_ops *ops; |
ce119f83 | 138 | bool updated; /* true if the cooling device does not need update */ |
f4a821ce | 139 | struct mutex lock; /* protect thermal_instances list */ |
b5e4ae62 | 140 | struct list_head thermal_instances; |
203d3d4a ZR |
141 | struct list_head node; |
142 | }; | |
143 | ||
c56f5c03 D |
144 | struct thermal_attr { |
145 | struct device_attribute attr; | |
146 | char name[THERMAL_NAME_LENGTH]; | |
147 | }; | |
148 | ||
c708a98f JM |
149 | /** |
150 | * struct thermal_zone_device - structure for a thermal zone | |
151 | * @id: unique id number for each thermal zone | |
152 | * @type: the thermal zone device type | |
153 | * @device: &struct device for this thermal zone | |
154 | * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature | |
155 | * @trip_type_attrs: attributes for trip points for sysfs: trip type | |
156 | * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis | |
157 | * @devdata: private pointer for device private data | |
158 | * @trips: number of trip points the thermal zone supports | |
81ad4276 | 159 | * @trips_disabled; bitmap for disabled trips |
c708a98f | 160 | * @passive_delay: number of milliseconds to wait between polls when |
6b775e87 | 161 | * performing passive cooling. |
c708a98f JM |
162 | * @polling_delay: number of milliseconds to wait between polls when |
163 | * checking whether trip points have been crossed (0 for | |
164 | * interrupt driven systems) | |
165 | * @temperature: current temperature. This is only for core code, | |
166 | * drivers should use thermal_zone_get_temp() to get the | |
167 | * current temperature | |
168 | * @last_temperature: previous temperature read | |
169 | * @emul_temperature: emulated temperature when using CONFIG_THERMAL_EMULATION | |
170 | * @passive: 1 if you've crossed a passive trip point, 0 otherwise. | |
060c034a SH |
171 | * @prev_low_trip: the low current temperature if you've crossed a passive |
172 | trip point. | |
173 | * @prev_high_trip: the above current temperature if you've crossed a | |
174 | passive trip point. | |
c708a98f JM |
175 | * @forced_passive: If > 0, temperature at which to switch on all ACPI |
176 | * processor cooling devices. Currently only used by the | |
177 | * step-wise governor. | |
4511f716 | 178 | * @need_update: if equals 1, thermal_zone_device_update needs to be invoked. |
c708a98f JM |
179 | * @ops: operations this &thermal_zone_device supports |
180 | * @tzp: thermal zone parameters | |
181 | * @governor: pointer to the governor for this thermal zone | |
e33df1d2 | 182 | * @governor_data: private pointer for governor data |
c708a98f | 183 | * @thermal_instances: list of &struct thermal_instance of this thermal zone |
b31ef828 | 184 | * @ida: &struct ida to generate unique id for this zone's cooling |
c708a98f JM |
185 | * devices |
186 | * @lock: lock to protect thermal_instances list | |
187 | * @node: node in thermal_tz_list (in thermal_core.c) | |
188 | * @poll_queue: delayed work for polling | |
0e70f466 | 189 | * @notify_event: Last notification event |
c708a98f | 190 | */ |
203d3d4a ZR |
191 | struct thermal_zone_device { |
192 | int id; | |
193 | char type[THERMAL_NAME_LENGTH]; | |
194 | struct device device; | |
4d0fe749 | 195 | struct attribute_group trips_attribute_group; |
c56f5c03 D |
196 | struct thermal_attr *trip_temp_attrs; |
197 | struct thermal_attr *trip_type_attrs; | |
27365a6c | 198 | struct thermal_attr *trip_hyst_attrs; |
203d3d4a ZR |
199 | void *devdata; |
200 | int trips; | |
81ad4276 | 201 | unsigned long trips_disabled; /* bitmap for disabled trips */ |
b1569e99 MG |
202 | int passive_delay; |
203 | int polling_delay; | |
601f3d42 | 204 | int temperature; |
b1569e99 | 205 | int last_temperature; |
e6e238c3 | 206 | int emul_temperature; |
908b9fb7 | 207 | int passive; |
060c034a SH |
208 | int prev_low_trip; |
209 | int prev_high_trip; | |
03a971a2 | 210 | unsigned int forced_passive; |
4511f716 | 211 | atomic_t need_update; |
4e5e4705 | 212 | struct thermal_zone_device_ops *ops; |
6b775e87 | 213 | struct thermal_zone_params *tzp; |
a4a15485 | 214 | struct thermal_governor *governor; |
e33df1d2 | 215 | void *governor_data; |
2d374139 | 216 | struct list_head thermal_instances; |
b31ef828 | 217 | struct ida ida; |
c708a98f | 218 | struct mutex lock; |
203d3d4a | 219 | struct list_head node; |
b1569e99 | 220 | struct delayed_work poll_queue; |
0e70f466 | 221 | enum thermal_notify_event notify_event; |
203d3d4a | 222 | }; |
4cb18728 | 223 | |
c708a98f JM |
224 | /** |
225 | * struct thermal_governor - structure that holds thermal governor information | |
226 | * @name: name of the governor | |
e33df1d2 JM |
227 | * @bind_to_tz: callback called when binding to a thermal zone. If it |
228 | * returns 0, the governor is bound to the thermal zone, | |
229 | * otherwise it fails. | |
230 | * @unbind_from_tz: callback called when a governor is unbound from a | |
231 | * thermal zone. | |
c708a98f JM |
232 | * @throttle: callback called for every trip point even if temperature is |
233 | * below the trip point temperature | |
234 | * @governor_list: node in thermal_governor_list (in thermal_core.c) | |
235 | */ | |
a4a15485 D |
236 | struct thermal_governor { |
237 | char name[THERMAL_NAME_LENGTH]; | |
e33df1d2 JM |
238 | int (*bind_to_tz)(struct thermal_zone_device *tz); |
239 | void (*unbind_from_tz)(struct thermal_zone_device *tz); | |
a4a15485 D |
240 | int (*throttle)(struct thermal_zone_device *tz, int trip); |
241 | struct list_head governor_list; | |
a4a15485 D |
242 | }; |
243 | ||
ef873947 D |
244 | /* Structure that holds binding parameters for a zone */ |
245 | struct thermal_bind_params { | |
246 | struct thermal_cooling_device *cdev; | |
247 | ||
248 | /* | |
249 | * This is a measure of 'how effectively these devices can | |
bcdcbbc7 JM |
250 | * cool 'this' thermal zone. It shall be determined by |
251 | * platform characterization. This value is relative to the | |
252 | * rest of the weights so a cooling device whose weight is | |
253 | * double that of another cooling device is twice as | |
eaf7b460 | 254 | * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more |
bcdcbbc7 | 255 | * information. |
ef873947 D |
256 | */ |
257 | int weight; | |
258 | ||
259 | /* | |
260 | * This is a bit mask that gives the binding relation between this | |
261 | * thermal zone and cdev, for a particular trip point. | |
eaf7b460 | 262 | * See Documentation/driver-api/thermal/sysfs-api.rst for more information. |
ef873947 D |
263 | */ |
264 | int trip_mask; | |
a8892d83 EV |
265 | |
266 | /* | |
267 | * This is an array of cooling state limits. Must have exactly | |
268 | * 2 * thermal_zone.number_of_trip_points. It is an array consisting | |
269 | * of tuples <lower-state upper-state> of state limits. Each trip | |
270 | * will be associated with one state limit tuple when binding. | |
271 | * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> | |
272 | * on all trips. | |
273 | */ | |
274 | unsigned long *binding_limits; | |
ef873947 D |
275 | int (*match) (struct thermal_zone_device *tz, |
276 | struct thermal_cooling_device *cdev); | |
277 | }; | |
278 | ||
279 | /* Structure to define Thermal Zone parameters */ | |
280 | struct thermal_zone_params { | |
a4a15485 | 281 | char governor_name[THERMAL_NAME_LENGTH]; |
ccba4ffd EV |
282 | |
283 | /* | |
284 | * a boolean to indicate if the thermal to hwmon sysfs interface | |
285 | * is required. when no_hwmon == false, a hwmon sysfs interface | |
286 | * will be created. when no_hwmon == true, nothing will be done | |
287 | */ | |
288 | bool no_hwmon; | |
289 | ||
ef873947 D |
290 | int num_tbps; /* Number of tbp entries */ |
291 | struct thermal_bind_params *tbp; | |
6b775e87 JM |
292 | |
293 | /* | |
294 | * Sustainable power (heat) that this thermal zone can dissipate in | |
295 | * mW | |
296 | */ | |
297 | u32 sustainable_power; | |
298 | ||
299 | /* | |
300 | * Proportional parameter of the PID controller when | |
301 | * overshooting (i.e., when temperature is below the target) | |
302 | */ | |
303 | s32 k_po; | |
304 | ||
305 | /* | |
306 | * Proportional parameter of the PID controller when | |
307 | * undershooting | |
308 | */ | |
309 | s32 k_pu; | |
310 | ||
311 | /* Integral parameter of the PID controller */ | |
312 | s32 k_i; | |
313 | ||
314 | /* Derivative parameter of the PID controller */ | |
315 | s32 k_d; | |
316 | ||
317 | /* threshold below which the error is no longer accumulated */ | |
318 | s32 integral_cutoff; | |
9d0be7f4 EV |
319 | |
320 | /* | |
321 | * @slope: slope of a linear temperature adjustment curve. | |
322 | * Used by thermal zone drivers. | |
323 | */ | |
324 | int slope; | |
325 | /* | |
326 | * @offset: offset of a linear temperature adjustment curve. | |
327 | * Used by thermal zone drivers (default 0). | |
328 | */ | |
329 | int offset; | |
ef873947 D |
330 | }; |
331 | ||
4cb18728 D |
332 | struct thermal_genl_event { |
333 | u32 orig; | |
334 | enum events event; | |
335 | }; | |
203d3d4a | 336 | |
2251aef6 EV |
337 | /** |
338 | * struct thermal_zone_of_device_ops - scallbacks for handling DT based zones | |
339 | * | |
340 | * Mandatory: | |
341 | * @get_temp: a pointer to a function that reads the sensor temperature. | |
342 | * | |
343 | * Optional: | |
344 | * @get_trend: a pointer to a function that reads the sensor temperature trend. | |
826386e7 SH |
345 | * @set_trips: a pointer to a function that sets a temperature window. When |
346 | * this window is left the driver must inform the thermal core via | |
347 | * thermal_zone_device_update. | |
184a4bf6 LM |
348 | * @set_emul_temp: a pointer to a function that sets sensor emulated |
349 | * temperature. | |
5a5e78cd CW |
350 | * @set_trip_temp: a pointer to a function that sets the trip temperature on |
351 | * hardware. | |
2251aef6 EV |
352 | */ |
353 | struct thermal_zone_of_device_ops { | |
17e8351a | 354 | int (*get_temp)(void *, int *); |
e78eaf45 | 355 | int (*get_trend)(void *, int, enum thermal_trend *); |
826386e7 | 356 | int (*set_trips)(void *, int, int); |
17e8351a | 357 | int (*set_emul_temp)(void *, int); |
c3509521 | 358 | int (*set_trip_temp)(void *, int, int); |
2251aef6 EV |
359 | }; |
360 | ||
ad9914ac LM |
361 | /** |
362 | * struct thermal_trip - representation of a point in temperature domain | |
363 | * @np: pointer to struct device_node that this trip point was created from | |
364 | * @temperature: temperature value in miliCelsius | |
365 | * @hysteresis: relative hysteresis in miliCelsius | |
366 | * @type: trip point type | |
367 | */ | |
368 | ||
369 | struct thermal_trip { | |
370 | struct device_node *np; | |
1d0fd42f WN |
371 | int temperature; |
372 | int hysteresis; | |
ad9914ac LM |
373 | enum thermal_trip_type type; |
374 | }; | |
375 | ||
23064088 | 376 | /* Function declarations */ |
4e5e4705 EV |
377 | #ifdef CONFIG_THERMAL_OF |
378 | struct thermal_zone_device * | |
2251aef6 EV |
379 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
380 | const struct thermal_zone_of_device_ops *ops); | |
4e5e4705 EV |
381 | void thermal_zone_of_sensor_unregister(struct device *dev, |
382 | struct thermal_zone_device *tz); | |
e498b498 LD |
383 | struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
384 | struct device *dev, int id, void *data, | |
385 | const struct thermal_zone_of_device_ops *ops); | |
386 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, | |
387 | struct thermal_zone_device *tz); | |
4e5e4705 EV |
388 | #else |
389 | static inline struct thermal_zone_device * | |
2251aef6 EV |
390 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
391 | const struct thermal_zone_of_device_ops *ops) | |
4e5e4705 | 392 | { |
cd33dc9a | 393 | return ERR_PTR(-ENODEV); |
4e5e4705 EV |
394 | } |
395 | ||
396 | static inline | |
397 | void thermal_zone_of_sensor_unregister(struct device *dev, | |
398 | struct thermal_zone_device *tz) | |
399 | { | |
400 | } | |
401 | ||
e498b498 LD |
402 | static inline struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
403 | struct device *dev, int id, void *data, | |
404 | const struct thermal_zone_of_device_ops *ops) | |
405 | { | |
406 | return ERR_PTR(-ENODEV); | |
407 | } | |
408 | ||
409 | static inline | |
410 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, | |
411 | struct thermal_zone_device *tz) | |
412 | { | |
413 | } | |
414 | ||
4e5e4705 | 415 | #endif |
12ca7188 NM |
416 | |
417 | #if IS_ENABLED(CONFIG_THERMAL) | |
35b11d2e JM |
418 | static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) |
419 | { | |
420 | return cdev->ops->get_requested_power && cdev->ops->state2power && | |
421 | cdev->ops->power2state; | |
422 | } | |
423 | ||
424 | int power_actor_get_max_power(struct thermal_cooling_device *, | |
425 | struct thermal_zone_device *tz, u32 *max_power); | |
c973c3bc JM |
426 | int power_actor_get_min_power(struct thermal_cooling_device *, |
427 | struct thermal_zone_device *tz, u32 *min_power); | |
35b11d2e JM |
428 | int power_actor_set_power(struct thermal_cooling_device *, |
429 | struct thermal_instance *, u32); | |
4b1bf587 | 430 | struct thermal_zone_device *thermal_zone_device_register(const char *, int, int, |
4e5e4705 | 431 | void *, struct thermal_zone_device_ops *, |
6b775e87 | 432 | struct thermal_zone_params *, int, int); |
203d3d4a ZR |
433 | void thermal_zone_device_unregister(struct thermal_zone_device *); |
434 | ||
435 | int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, | |
9d99842f | 436 | struct thermal_cooling_device *, |
6cd9e9f6 KS |
437 | unsigned long, unsigned long, |
438 | unsigned int); | |
203d3d4a ZR |
439 | int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, |
440 | struct thermal_cooling_device *); | |
0e70f466 SP |
441 | void thermal_zone_device_update(struct thermal_zone_device *, |
442 | enum thermal_notify_event); | |
060c034a | 443 | void thermal_zone_set_trips(struct thermal_zone_device *); |
23064088 | 444 | |
f991de53 JFD |
445 | struct thermal_cooling_device *thermal_cooling_device_register(const char *, |
446 | void *, const struct thermal_cooling_device_ops *); | |
a116b5d4 | 447 | struct thermal_cooling_device * |
f991de53 | 448 | thermal_of_cooling_device_register(struct device_node *np, const char *, void *, |
a116b5d4 | 449 | const struct thermal_cooling_device_ops *); |
b4ab114c GR |
450 | struct thermal_cooling_device * |
451 | devm_thermal_of_cooling_device_register(struct device *dev, | |
452 | struct device_node *np, | |
453 | char *type, void *devdata, | |
454 | const struct thermal_cooling_device_ops *ops); | |
203d3d4a | 455 | void thermal_cooling_device_unregister(struct thermal_cooling_device *); |
63c4d919 | 456 | struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); |
17e8351a | 457 | int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); |
4a7069a3 RN |
458 | int thermal_zone_get_slope(struct thermal_zone_device *tz); |
459 | int thermal_zone_get_offset(struct thermal_zone_device *tz); | |
af06216a | 460 | |
9b4298a0 D |
461 | int get_tz_trend(struct thermal_zone_device *, int); |
462 | struct thermal_instance *get_thermal_instance(struct thermal_zone_device *, | |
463 | struct thermal_cooling_device *, int); | |
dc765482 | 464 | void thermal_cdev_update(struct thermal_cooling_device *); |
7b73c993 | 465 | void thermal_notify_framework(struct thermal_zone_device *, int); |
12ca7188 | 466 | #else |
35b11d2e JM |
467 | static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) |
468 | { return false; } | |
469 | static inline int power_actor_get_max_power(struct thermal_cooling_device *cdev, | |
470 | struct thermal_zone_device *tz, u32 *max_power) | |
471 | { return 0; } | |
c973c3bc JM |
472 | static inline int power_actor_get_min_power(struct thermal_cooling_device *cdev, |
473 | struct thermal_zone_device *tz, | |
474 | u32 *min_power) | |
475 | { return -ENODEV; } | |
35b11d2e JM |
476 | static inline int power_actor_set_power(struct thermal_cooling_device *cdev, |
477 | struct thermal_instance *tz, u32 power) | |
478 | { return 0; } | |
12ca7188 NM |
479 | static inline struct thermal_zone_device *thermal_zone_device_register( |
480 | const char *type, int trips, int mask, void *devdata, | |
481 | struct thermal_zone_device_ops *ops, | |
023b7b07 | 482 | struct thermal_zone_params *tzp, |
12ca7188 NM |
483 | int passive_delay, int polling_delay) |
484 | { return ERR_PTR(-ENODEV); } | |
485 | static inline void thermal_zone_device_unregister( | |
486 | struct thermal_zone_device *tz) | |
487 | { } | |
488 | static inline int thermal_zone_bind_cooling_device( | |
489 | struct thermal_zone_device *tz, int trip, | |
490 | struct thermal_cooling_device *cdev, | |
c86b3de8 AB |
491 | unsigned long upper, unsigned long lower, |
492 | unsigned int weight) | |
12ca7188 NM |
493 | { return -ENODEV; } |
494 | static inline int thermal_zone_unbind_cooling_device( | |
495 | struct thermal_zone_device *tz, int trip, | |
496 | struct thermal_cooling_device *cdev) | |
497 | { return -ENODEV; } | |
0e70f466 SP |
498 | static inline void thermal_zone_device_update(struct thermal_zone_device *tz, |
499 | enum thermal_notify_event event) | |
12ca7188 | 500 | { } |
060c034a SH |
501 | static inline void thermal_zone_set_trips(struct thermal_zone_device *tz) |
502 | { } | |
12ca7188 NM |
503 | static inline struct thermal_cooling_device * |
504 | thermal_cooling_device_register(char *type, void *devdata, | |
505 | const struct thermal_cooling_device_ops *ops) | |
506 | { return ERR_PTR(-ENODEV); } | |
507 | static inline struct thermal_cooling_device * | |
508 | thermal_of_cooling_device_register(struct device_node *np, | |
509 | char *type, void *devdata, const struct thermal_cooling_device_ops *ops) | |
510 | { return ERR_PTR(-ENODEV); } | |
b4ab114c GR |
511 | static inline struct thermal_cooling_device * |
512 | devm_thermal_of_cooling_device_register(struct device *dev, | |
513 | struct device_node *np, | |
514 | char *type, void *devdata, | |
515 | const struct thermal_cooling_device_ops *ops) | |
516 | { | |
517 | return ERR_PTR(-ENODEV); | |
518 | } | |
12ca7188 NM |
519 | static inline void thermal_cooling_device_unregister( |
520 | struct thermal_cooling_device *cdev) | |
521 | { } | |
522 | static inline struct thermal_zone_device *thermal_zone_get_zone_by_name( | |
523 | const char *name) | |
524 | { return ERR_PTR(-ENODEV); } | |
525 | static inline int thermal_zone_get_temp( | |
17e8351a | 526 | struct thermal_zone_device *tz, int *temp) |
12ca7188 | 527 | { return -ENODEV; } |
4a7069a3 RN |
528 | static inline int thermal_zone_get_slope( |
529 | struct thermal_zone_device *tz) | |
530 | { return -ENODEV; } | |
531 | static inline int thermal_zone_get_offset( | |
532 | struct thermal_zone_device *tz) | |
533 | { return -ENODEV; } | |
12ca7188 NM |
534 | static inline int get_tz_trend(struct thermal_zone_device *tz, int trip) |
535 | { return -ENODEV; } | |
536 | static inline struct thermal_instance * | |
537 | get_thermal_instance(struct thermal_zone_device *tz, | |
538 | struct thermal_cooling_device *cdev, int trip) | |
539 | { return ERR_PTR(-ENODEV); } | |
540 | static inline void thermal_cdev_update(struct thermal_cooling_device *cdev) | |
541 | { } | |
542 | static inline void thermal_notify_framework(struct thermal_zone_device *tz, | |
543 | int trip) | |
544 | { } | |
545 | #endif /* CONFIG_THERMAL */ | |
546 | ||
547 | #if defined(CONFIG_NET) && IS_ENABLED(CONFIG_THERMAL) | |
8ab3e6a0 EV |
548 | extern int thermal_generate_netlink_event(struct thermal_zone_device *tz, |
549 | enum events event); | |
af06216a | 550 | #else |
f8b58705 | 551 | static inline int thermal_generate_netlink_event(struct thermal_zone_device *tz, |
8ab3e6a0 | 552 | enum events event) |
af06216a RW |
553 | { |
554 | return 0; | |
555 | } | |
556 | #endif | |
203d3d4a | 557 | |
a0dd25b2 | 558 | #endif /* __THERMAL_H__ */ |