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203d3d4a ZR |
1 | /* |
2 | * thermal.h ($Revision: 0 $) | |
3 | * | |
4 | * Copyright (C) 2008 Intel Corp | |
5 | * Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com> | |
6 | * Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com> | |
7 | * | |
8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
21 | * | |
22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
23 | */ | |
24 | ||
25 | #ifndef __THERMAL_H__ | |
26 | #define __THERMAL_H__ | |
27 | ||
a116b5d4 | 28 | #include <linux/of.h> |
203d3d4a ZR |
29 | #include <linux/idr.h> |
30 | #include <linux/device.h> | |
4d0fe749 | 31 | #include <linux/sysfs.h> |
b1569e99 | 32 | #include <linux/workqueue.h> |
af6c9f16 | 33 | #include <uapi/linux/thermal.h> |
203d3d4a | 34 | |
23064088 D |
35 | #define THERMAL_TRIPS_NONE -1 |
36 | #define THERMAL_MAX_TRIPS 12 | |
23064088 | 37 | |
57df8106 ZR |
38 | /* invalid cooling state */ |
39 | #define THERMAL_CSTATE_INVALID -1UL | |
40 | ||
bd799f71 SK |
41 | /* invalid cooling frequency */ |
42 | #define THERMAL_CFREQ_INVALID -1 | |
43 | ||
23064088 | 44 | /* No upper/lower limit requirement */ |
a940cb34 | 45 | #define THERMAL_NO_LIMIT ((u32)~0) |
23064088 | 46 | |
6cd9e9f6 KS |
47 | /* Default weight of a bound cooling device */ |
48 | #define THERMAL_WEIGHT_DEFAULT 0 | |
49 | ||
bb431ba2 ZR |
50 | /* use value, which < 0K, to indicate an invalid/uninitialized temperature */ |
51 | #define THERMAL_TEMP_INVALID -274000 | |
52 | ||
23064088 | 53 | /* Unit conversion macros */ |
e866a2e3 RV |
54 | #define DECI_KELVIN_TO_CELSIUS(t) ({ \ |
55 | long _t = (t); \ | |
56 | ((_t-2732 >= 0) ? (_t-2732+5)/10 : (_t-2732-5)/10); \ | |
57 | }) | |
58 | #define CELSIUS_TO_DECI_KELVIN(t) ((t)*10+2732) | |
7b83fd9d AL |
59 | #define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100) |
60 | #define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732) | |
77e337c6 AL |
61 | #define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off)) |
62 | #define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732) | |
23064088 | 63 | |
1f53ef17 ZR |
64 | /* Default Thermal Governor */ |
65 | #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE) | |
66 | #define DEFAULT_THERMAL_GOVERNOR "step_wise" | |
67 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE) | |
68 | #define DEFAULT_THERMAL_GOVERNOR "fair_share" | |
69 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE) | |
70 | #define DEFAULT_THERMAL_GOVERNOR "user_space" | |
6b775e87 JM |
71 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR) |
72 | #define DEFAULT_THERMAL_GOVERNOR "power_allocator" | |
1f53ef17 | 73 | #endif |
a4a15485 | 74 | |
203d3d4a ZR |
75 | struct thermal_zone_device; |
76 | struct thermal_cooling_device; | |
35b11d2e | 77 | struct thermal_instance; |
203d3d4a | 78 | |
6503e5df MG |
79 | enum thermal_device_mode { |
80 | THERMAL_DEVICE_DISABLED = 0, | |
81 | THERMAL_DEVICE_ENABLED, | |
82 | }; | |
83 | ||
84 | enum thermal_trip_type { | |
85 | THERMAL_TRIP_ACTIVE = 0, | |
86 | THERMAL_TRIP_PASSIVE, | |
87 | THERMAL_TRIP_HOT, | |
88 | THERMAL_TRIP_CRITICAL, | |
89 | }; | |
90 | ||
601f3d42 ZR |
91 | enum thermal_trend { |
92 | THERMAL_TREND_STABLE, /* temperature is stable */ | |
93 | THERMAL_TREND_RAISING, /* temperature is raising */ | |
94 | THERMAL_TREND_DROPPING, /* temperature is dropping */ | |
d069015e ZR |
95 | THERMAL_TREND_RAISE_FULL, /* apply highest cooling action */ |
96 | THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */ | |
601f3d42 ZR |
97 | }; |
98 | ||
0e70f466 SP |
99 | /* Thermal notification reason */ |
100 | enum thermal_notify_event { | |
101 | THERMAL_EVENT_UNSPECIFIED, /* Unspecified event */ | |
102 | THERMAL_EVENT_TEMP_SAMPLE, /* New Temperature sample */ | |
103 | THERMAL_TRIP_VIOLATED, /* TRIP Point violation */ | |
104 | THERMAL_TRIP_CHANGED, /* TRIP Point temperature changed */ | |
105 | THERMAL_DEVICE_DOWN, /* Thermal device is down */ | |
106 | THERMAL_DEVICE_UP, /* Thermal device is up after a down event */ | |
107 | THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */ | |
38e44da5 | 108 | THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */ |
0e70f466 SP |
109 | }; |
110 | ||
203d3d4a ZR |
111 | struct thermal_zone_device_ops { |
112 | int (*bind) (struct thermal_zone_device *, | |
113 | struct thermal_cooling_device *); | |
114 | int (*unbind) (struct thermal_zone_device *, | |
115 | struct thermal_cooling_device *); | |
17e8351a | 116 | int (*get_temp) (struct thermal_zone_device *, int *); |
060c034a | 117 | int (*set_trips) (struct thermal_zone_device *, int, int); |
6503e5df MG |
118 | int (*get_mode) (struct thermal_zone_device *, |
119 | enum thermal_device_mode *); | |
120 | int (*set_mode) (struct thermal_zone_device *, | |
121 | enum thermal_device_mode); | |
122 | int (*get_trip_type) (struct thermal_zone_device *, int, | |
123 | enum thermal_trip_type *); | |
17e8351a SH |
124 | int (*get_trip_temp) (struct thermal_zone_device *, int, int *); |
125 | int (*set_trip_temp) (struct thermal_zone_device *, int, int); | |
126 | int (*get_trip_hyst) (struct thermal_zone_device *, int, int *); | |
127 | int (*set_trip_hyst) (struct thermal_zone_device *, int, int); | |
128 | int (*get_crit_temp) (struct thermal_zone_device *, int *); | |
129 | int (*set_emul_temp) (struct thermal_zone_device *, int); | |
601f3d42 ZR |
130 | int (*get_trend) (struct thermal_zone_device *, int, |
131 | enum thermal_trend *); | |
b1569e99 MG |
132 | int (*notify) (struct thermal_zone_device *, int, |
133 | enum thermal_trip_type); | |
967f5408 | 134 | int (*throttle_hotplug) (struct thermal_zone_device *); |
203d3d4a ZR |
135 | }; |
136 | ||
137 | struct thermal_cooling_device_ops { | |
6503e5df MG |
138 | int (*get_max_state) (struct thermal_cooling_device *, unsigned long *); |
139 | int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *); | |
140 | int (*set_cur_state) (struct thermal_cooling_device *, unsigned long); | |
35b11d2e JM |
141 | int (*get_requested_power)(struct thermal_cooling_device *, |
142 | struct thermal_zone_device *, u32 *); | |
143 | int (*state2power)(struct thermal_cooling_device *, | |
144 | struct thermal_zone_device *, unsigned long, u32 *); | |
145 | int (*power2state)(struct thermal_cooling_device *, | |
146 | struct thermal_zone_device *, u32, unsigned long *); | |
dba1d356 HG |
147 | int (*set_cur_temp)(struct thermal_cooling_device *, bool, int); |
148 | int (*get_cooling_level)(struct thermal_cooling_device *, unsigned long); | |
203d3d4a ZR |
149 | }; |
150 | ||
203d3d4a ZR |
151 | struct thermal_cooling_device { |
152 | int id; | |
153 | char type[THERMAL_NAME_LENGTH]; | |
154 | struct device device; | |
4e5e4705 | 155 | struct device_node *np; |
203d3d4a | 156 | void *devdata; |
5b275ce2 | 157 | const struct thermal_cooling_device_ops *ops; |
ce119f83 | 158 | bool updated; /* true if the cooling device does not need update */ |
f4a821ce | 159 | struct mutex lock; /* protect thermal_instances list */ |
b5e4ae62 | 160 | struct list_head thermal_instances; |
203d3d4a ZR |
161 | struct list_head node; |
162 | }; | |
163 | ||
c56f5c03 D |
164 | struct thermal_attr { |
165 | struct device_attribute attr; | |
166 | char name[THERMAL_NAME_LENGTH]; | |
167 | }; | |
168 | ||
c708a98f JM |
169 | /** |
170 | * struct thermal_zone_device - structure for a thermal zone | |
171 | * @id: unique id number for each thermal zone | |
172 | * @type: the thermal zone device type | |
173 | * @device: &struct device for this thermal zone | |
174 | * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature | |
175 | * @trip_type_attrs: attributes for trip points for sysfs: trip type | |
176 | * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis | |
177 | * @devdata: private pointer for device private data | |
178 | * @trips: number of trip points the thermal zone supports | |
81ad4276 | 179 | * @trips_disabled; bitmap for disabled trips |
c708a98f | 180 | * @passive_delay: number of milliseconds to wait between polls when |
6b775e87 | 181 | * performing passive cooling. |
c708a98f JM |
182 | * @polling_delay: number of milliseconds to wait between polls when |
183 | * checking whether trip points have been crossed (0 for | |
184 | * interrupt driven systems) | |
185 | * @temperature: current temperature. This is only for core code, | |
186 | * drivers should use thermal_zone_get_temp() to get the | |
187 | * current temperature | |
188 | * @last_temperature: previous temperature read | |
189 | * @emul_temperature: emulated temperature when using CONFIG_THERMAL_EMULATION | |
190 | * @passive: 1 if you've crossed a passive trip point, 0 otherwise. | |
060c034a SH |
191 | * @prev_low_trip: the low current temperature if you've crossed a passive |
192 | trip point. | |
193 | * @prev_high_trip: the above current temperature if you've crossed a | |
194 | passive trip point. | |
c708a98f JM |
195 | * @forced_passive: If > 0, temperature at which to switch on all ACPI |
196 | * processor cooling devices. Currently only used by the | |
197 | * step-wise governor. | |
4511f716 | 198 | * @need_update: if equals 1, thermal_zone_device_update needs to be invoked. |
c708a98f JM |
199 | * @ops: operations this &thermal_zone_device supports |
200 | * @tzp: thermal zone parameters | |
201 | * @governor: pointer to the governor for this thermal zone | |
e33df1d2 | 202 | * @governor_data: private pointer for governor data |
c708a98f | 203 | * @thermal_instances: list of &struct thermal_instance of this thermal zone |
b31ef828 | 204 | * @ida: &struct ida to generate unique id for this zone's cooling |
c708a98f JM |
205 | * devices |
206 | * @lock: lock to protect thermal_instances list | |
207 | * @node: node in thermal_tz_list (in thermal_core.c) | |
208 | * @poll_queue: delayed work for polling | |
0e70f466 | 209 | * @notify_event: Last notification event |
91a5669d | 210 | * @cdev_bound: cooling device bind done |
c708a98f | 211 | */ |
203d3d4a ZR |
212 | struct thermal_zone_device { |
213 | int id; | |
214 | char type[THERMAL_NAME_LENGTH]; | |
215 | struct device device; | |
4d0fe749 | 216 | struct attribute_group trips_attribute_group; |
c56f5c03 D |
217 | struct thermal_attr *trip_temp_attrs; |
218 | struct thermal_attr *trip_type_attrs; | |
27365a6c | 219 | struct thermal_attr *trip_hyst_attrs; |
203d3d4a ZR |
220 | void *devdata; |
221 | int trips; | |
81ad4276 | 222 | unsigned long trips_disabled; /* bitmap for disabled trips */ |
b1569e99 MG |
223 | int passive_delay; |
224 | int polling_delay; | |
601f3d42 | 225 | int temperature; |
b1569e99 | 226 | int last_temperature; |
e6e238c3 | 227 | int emul_temperature; |
908b9fb7 | 228 | int passive; |
060c034a SH |
229 | int prev_low_trip; |
230 | int prev_high_trip; | |
03a971a2 | 231 | unsigned int forced_passive; |
4511f716 | 232 | atomic_t need_update; |
4e5e4705 | 233 | struct thermal_zone_device_ops *ops; |
6b775e87 | 234 | struct thermal_zone_params *tzp; |
a4a15485 | 235 | struct thermal_governor *governor; |
e33df1d2 | 236 | void *governor_data; |
2d374139 | 237 | struct list_head thermal_instances; |
b31ef828 | 238 | struct ida ida; |
c708a98f | 239 | struct mutex lock; |
203d3d4a | 240 | struct list_head node; |
b1569e99 | 241 | struct delayed_work poll_queue; |
0e70f466 | 242 | enum thermal_notify_event notify_event; |
91a5669d | 243 | bool cdev_bound; |
203d3d4a | 244 | }; |
4cb18728 | 245 | |
c708a98f JM |
246 | /** |
247 | * struct thermal_governor - structure that holds thermal governor information | |
248 | * @name: name of the governor | |
e33df1d2 JM |
249 | * @bind_to_tz: callback called when binding to a thermal zone. If it |
250 | * returns 0, the governor is bound to the thermal zone, | |
251 | * otherwise it fails. | |
252 | * @unbind_from_tz: callback called when a governor is unbound from a | |
253 | * thermal zone. | |
c708a98f JM |
254 | * @throttle: callback called for every trip point even if temperature is |
255 | * below the trip point temperature | |
256 | * @governor_list: node in thermal_governor_list (in thermal_core.c) | |
257 | */ | |
a4a15485 D |
258 | struct thermal_governor { |
259 | char name[THERMAL_NAME_LENGTH]; | |
e33df1d2 JM |
260 | int (*bind_to_tz)(struct thermal_zone_device *tz); |
261 | void (*unbind_from_tz)(struct thermal_zone_device *tz); | |
a4a15485 D |
262 | int (*throttle)(struct thermal_zone_device *tz, int trip); |
263 | struct list_head governor_list; | |
a4a15485 D |
264 | }; |
265 | ||
ef873947 D |
266 | /* Structure that holds binding parameters for a zone */ |
267 | struct thermal_bind_params { | |
268 | struct thermal_cooling_device *cdev; | |
269 | ||
270 | /* | |
271 | * This is a measure of 'how effectively these devices can | |
bcdcbbc7 JM |
272 | * cool 'this' thermal zone. It shall be determined by |
273 | * platform characterization. This value is relative to the | |
274 | * rest of the weights so a cooling device whose weight is | |
275 | * double that of another cooling device is twice as | |
276 | * effective. See Documentation/thermal/sysfs-api.txt for more | |
277 | * information. | |
ef873947 D |
278 | */ |
279 | int weight; | |
280 | ||
281 | /* | |
282 | * This is a bit mask that gives the binding relation between this | |
283 | * thermal zone and cdev, for a particular trip point. | |
284 | * See Documentation/thermal/sysfs-api.txt for more information. | |
285 | */ | |
286 | int trip_mask; | |
a8892d83 EV |
287 | |
288 | /* | |
289 | * This is an array of cooling state limits. Must have exactly | |
290 | * 2 * thermal_zone.number_of_trip_points. It is an array consisting | |
291 | * of tuples <lower-state upper-state> of state limits. Each trip | |
292 | * will be associated with one state limit tuple when binding. | |
293 | * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> | |
294 | * on all trips. | |
295 | */ | |
296 | unsigned long *binding_limits; | |
ef873947 D |
297 | int (*match) (struct thermal_zone_device *tz, |
298 | struct thermal_cooling_device *cdev); | |
299 | }; | |
300 | ||
301 | /* Structure to define Thermal Zone parameters */ | |
302 | struct thermal_zone_params { | |
a4a15485 | 303 | char governor_name[THERMAL_NAME_LENGTH]; |
ccba4ffd EV |
304 | |
305 | /* | |
306 | * a boolean to indicate if the thermal to hwmon sysfs interface | |
307 | * is required. when no_hwmon == false, a hwmon sysfs interface | |
308 | * will be created. when no_hwmon == true, nothing will be done | |
309 | */ | |
310 | bool no_hwmon; | |
311 | ||
ef873947 D |
312 | int num_tbps; /* Number of tbp entries */ |
313 | struct thermal_bind_params *tbp; | |
6b775e87 JM |
314 | |
315 | /* | |
316 | * Sustainable power (heat) that this thermal zone can dissipate in | |
317 | * mW | |
318 | */ | |
319 | u32 sustainable_power; | |
320 | ||
321 | /* | |
322 | * Proportional parameter of the PID controller when | |
323 | * overshooting (i.e., when temperature is below the target) | |
324 | */ | |
325 | s32 k_po; | |
326 | ||
327 | /* | |
328 | * Proportional parameter of the PID controller when | |
329 | * undershooting | |
330 | */ | |
331 | s32 k_pu; | |
332 | ||
333 | /* Integral parameter of the PID controller */ | |
334 | s32 k_i; | |
335 | ||
336 | /* Derivative parameter of the PID controller */ | |
337 | s32 k_d; | |
338 | ||
339 | /* threshold below which the error is no longer accumulated */ | |
340 | s32 integral_cutoff; | |
9d0be7f4 | 341 | |
c7e3357c HG |
342 | s32 integral_max; |
343 | ||
9d0be7f4 EV |
344 | /* |
345 | * @slope: slope of a linear temperature adjustment curve. | |
346 | * Used by thermal zone drivers. | |
347 | */ | |
348 | int slope; | |
349 | /* | |
350 | * @offset: offset of a linear temperature adjustment curve. | |
351 | * Used by thermal zone drivers (default 0). | |
352 | */ | |
353 | int offset; | |
ef873947 D |
354 | }; |
355 | ||
4cb18728 D |
356 | struct thermal_genl_event { |
357 | u32 orig; | |
358 | enum events event; | |
359 | }; | |
203d3d4a | 360 | |
2251aef6 EV |
361 | /** |
362 | * struct thermal_zone_of_device_ops - scallbacks for handling DT based zones | |
363 | * | |
364 | * Mandatory: | |
365 | * @get_temp: a pointer to a function that reads the sensor temperature. | |
366 | * | |
367 | * Optional: | |
368 | * @get_trend: a pointer to a function that reads the sensor temperature trend. | |
826386e7 SH |
369 | * @set_trips: a pointer to a function that sets a temperature window. When |
370 | * this window is left the driver must inform the thermal core via | |
371 | * thermal_zone_device_update. | |
184a4bf6 LM |
372 | * @set_emul_temp: a pointer to a function that sets sensor emulated |
373 | * temperature. | |
5a5e78cd CW |
374 | * @set_trip_temp: a pointer to a function that sets the trip temperature on |
375 | * hardware. | |
2251aef6 EV |
376 | */ |
377 | struct thermal_zone_of_device_ops { | |
17e8351a | 378 | int (*get_temp)(void *, int *); |
e78eaf45 | 379 | int (*get_trend)(void *, int, enum thermal_trend *); |
826386e7 | 380 | int (*set_trips)(void *, int, int); |
17e8351a | 381 | int (*set_emul_temp)(void *, int); |
c3509521 | 382 | int (*set_trip_temp)(void *, int, int); |
967f5408 | 383 | int (*throttle_cpu_hotplug)(void *, int temp); |
2251aef6 EV |
384 | }; |
385 | ||
ad9914ac LM |
386 | /** |
387 | * struct thermal_trip - representation of a point in temperature domain | |
388 | * @np: pointer to struct device_node that this trip point was created from | |
389 | * @temperature: temperature value in miliCelsius | |
390 | * @hysteresis: relative hysteresis in miliCelsius | |
391 | * @type: trip point type | |
392 | */ | |
393 | ||
394 | struct thermal_trip { | |
395 | struct device_node *np; | |
1d0fd42f WN |
396 | int temperature; |
397 | int hysteresis; | |
ad9914ac LM |
398 | enum thermal_trip_type type; |
399 | }; | |
400 | ||
3d8d72c3 HG |
401 | /*** Private data structures to represent thermal device tree data ***/ |
402 | ||
403 | /** | |
404 | * struct __thermal_bind_param - a match between trip and cooling device | |
405 | * @cooling_device: a pointer to identify the referred cooling device | |
406 | * @trip_id: the trip point index | |
407 | * @usage: the percentage (from 0 to 100) of cooling contribution | |
408 | * @min: minimum cooling state used at this trip point | |
409 | * @max: maximum cooling state used at this trip point | |
dba1d356 | 410 | * @value: cooling value corresponding to max state |
3d8d72c3 HG |
411 | */ |
412 | ||
413 | struct __thermal_bind_params { | |
414 | struct device_node *cooling_device; | |
415 | unsigned int trip_id; | |
416 | unsigned int usage; | |
417 | unsigned long min; | |
418 | unsigned long max; | |
dba1d356 | 419 | unsigned long value; |
3d8d72c3 HG |
420 | }; |
421 | ||
422 | /** | |
423 | * struct __thermal_zone - internal representation of a thermal zone | |
424 | * @mode: current thermal zone device mode (enabled/disabled) | |
425 | * @passive_delay: polling interval while passive cooling is activated | |
426 | * @polling_delay: zone polling interval | |
427 | * @slope: slope of the temperature adjustment curve | |
428 | * @offset: offset of the temperature adjustment curve | |
429 | * @ntrips: number of trip points | |
430 | * @trips: an array of trip points (0..ntrips - 1) | |
431 | * @num_tbps: number of thermal bind params | |
432 | * @tbps: an array of thermal bind params (0..num_tbps - 1) | |
433 | * @sensor_data: sensor private data used while reading temperature and trend | |
434 | * @ops: set of callbacks to handle the thermal zone based on DT | |
435 | */ | |
436 | ||
437 | struct __thermal_zone { | |
438 | enum thermal_device_mode mode; | |
439 | int passive_delay; | |
440 | int polling_delay; | |
441 | int slope; | |
442 | int offset; | |
443 | ||
444 | /* trip data */ | |
445 | int ntrips; | |
446 | struct thermal_trip *trips; | |
447 | ||
448 | /* cooling binding data */ | |
449 | int num_tbps; | |
450 | struct __thermal_bind_params *tbps; | |
451 | ||
452 | /* sensor interface */ | |
453 | void *sensor_data; | |
454 | const struct thermal_zone_of_device_ops *ops; | |
455 | }; | |
456 | ||
23064088 | 457 | /* Function declarations */ |
4e5e4705 EV |
458 | #ifdef CONFIG_THERMAL_OF |
459 | struct thermal_zone_device * | |
2251aef6 EV |
460 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
461 | const struct thermal_zone_of_device_ops *ops); | |
4e5e4705 EV |
462 | void thermal_zone_of_sensor_unregister(struct device *dev, |
463 | struct thermal_zone_device *tz); | |
e498b498 LD |
464 | struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
465 | struct device *dev, int id, void *data, | |
466 | const struct thermal_zone_of_device_ops *ops); | |
467 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, | |
468 | struct thermal_zone_device *tz); | |
4e5e4705 EV |
469 | #else |
470 | static inline struct thermal_zone_device * | |
2251aef6 EV |
471 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
472 | const struct thermal_zone_of_device_ops *ops) | |
4e5e4705 | 473 | { |
cd33dc9a | 474 | return ERR_PTR(-ENODEV); |
4e5e4705 EV |
475 | } |
476 | ||
477 | static inline | |
478 | void thermal_zone_of_sensor_unregister(struct device *dev, | |
479 | struct thermal_zone_device *tz) | |
480 | { | |
481 | } | |
482 | ||
e498b498 LD |
483 | static inline struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
484 | struct device *dev, int id, void *data, | |
485 | const struct thermal_zone_of_device_ops *ops) | |
486 | { | |
487 | return ERR_PTR(-ENODEV); | |
488 | } | |
489 | ||
490 | static inline | |
491 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, | |
492 | struct thermal_zone_device *tz) | |
493 | { | |
494 | } | |
495 | ||
4e5e4705 | 496 | #endif |
12ca7188 NM |
497 | |
498 | #if IS_ENABLED(CONFIG_THERMAL) | |
35b11d2e JM |
499 | static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) |
500 | { | |
501 | return cdev->ops->get_requested_power && cdev->ops->state2power && | |
502 | cdev->ops->power2state; | |
503 | } | |
504 | ||
505 | int power_actor_get_max_power(struct thermal_cooling_device *, | |
506 | struct thermal_zone_device *tz, u32 *max_power); | |
c973c3bc JM |
507 | int power_actor_get_min_power(struct thermal_cooling_device *, |
508 | struct thermal_zone_device *tz, u32 *min_power); | |
35b11d2e JM |
509 | int power_actor_set_power(struct thermal_cooling_device *, |
510 | struct thermal_instance *, u32); | |
4b1bf587 | 511 | struct thermal_zone_device *thermal_zone_device_register(const char *, int, int, |
4e5e4705 | 512 | void *, struct thermal_zone_device_ops *, |
6b775e87 | 513 | struct thermal_zone_params *, int, int); |
203d3d4a ZR |
514 | void thermal_zone_device_unregister(struct thermal_zone_device *); |
515 | ||
516 | int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, | |
9d99842f | 517 | struct thermal_cooling_device *, |
6cd9e9f6 KS |
518 | unsigned long, unsigned long, |
519 | unsigned int); | |
203d3d4a ZR |
520 | int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, |
521 | struct thermal_cooling_device *); | |
0e70f466 SP |
522 | void thermal_zone_device_update(struct thermal_zone_device *, |
523 | enum thermal_notify_event); | |
060c034a | 524 | void thermal_zone_set_trips(struct thermal_zone_device *); |
23064088 | 525 | |
203d3d4a | 526 | struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, |
5b275ce2 | 527 | const struct thermal_cooling_device_ops *); |
a116b5d4 EV |
528 | struct thermal_cooling_device * |
529 | thermal_of_cooling_device_register(struct device_node *np, char *, void *, | |
530 | const struct thermal_cooling_device_ops *); | |
203d3d4a | 531 | void thermal_cooling_device_unregister(struct thermal_cooling_device *); |
63c4d919 | 532 | struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); |
3e36d67e | 533 | struct thermal_zone_device *thermal_zone_get_zone_by_cool_np(struct device_node *cool_np); |
17e8351a | 534 | int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); |
4a7069a3 RN |
535 | int thermal_zone_get_slope(struct thermal_zone_device *tz); |
536 | int thermal_zone_get_offset(struct thermal_zone_device *tz); | |
af06216a | 537 | |
9b4298a0 D |
538 | int get_tz_trend(struct thermal_zone_device *, int); |
539 | struct thermal_instance *get_thermal_instance(struct thermal_zone_device *, | |
540 | struct thermal_cooling_device *, int); | |
dc765482 | 541 | void thermal_cdev_update(struct thermal_cooling_device *); |
7b73c993 | 542 | void thermal_notify_framework(struct thermal_zone_device *, int); |
12ca7188 | 543 | #else |
35b11d2e JM |
544 | static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) |
545 | { return false; } | |
546 | static inline int power_actor_get_max_power(struct thermal_cooling_device *cdev, | |
547 | struct thermal_zone_device *tz, u32 *max_power) | |
548 | { return 0; } | |
c973c3bc JM |
549 | static inline int power_actor_get_min_power(struct thermal_cooling_device *cdev, |
550 | struct thermal_zone_device *tz, | |
551 | u32 *min_power) | |
552 | { return -ENODEV; } | |
35b11d2e JM |
553 | static inline int power_actor_set_power(struct thermal_cooling_device *cdev, |
554 | struct thermal_instance *tz, u32 power) | |
555 | { return 0; } | |
12ca7188 NM |
556 | static inline struct thermal_zone_device *thermal_zone_device_register( |
557 | const char *type, int trips, int mask, void *devdata, | |
558 | struct thermal_zone_device_ops *ops, | |
559 | const struct thermal_zone_params *tzp, | |
560 | int passive_delay, int polling_delay) | |
561 | { return ERR_PTR(-ENODEV); } | |
562 | static inline void thermal_zone_device_unregister( | |
563 | struct thermal_zone_device *tz) | |
564 | { } | |
565 | static inline int thermal_zone_bind_cooling_device( | |
566 | struct thermal_zone_device *tz, int trip, | |
567 | struct thermal_cooling_device *cdev, | |
c86b3de8 AB |
568 | unsigned long upper, unsigned long lower, |
569 | unsigned int weight) | |
12ca7188 NM |
570 | { return -ENODEV; } |
571 | static inline int thermal_zone_unbind_cooling_device( | |
572 | struct thermal_zone_device *tz, int trip, | |
573 | struct thermal_cooling_device *cdev) | |
574 | { return -ENODEV; } | |
0e70f466 SP |
575 | static inline void thermal_zone_device_update(struct thermal_zone_device *tz, |
576 | enum thermal_notify_event event) | |
12ca7188 | 577 | { } |
060c034a SH |
578 | static inline void thermal_zone_set_trips(struct thermal_zone_device *tz) |
579 | { } | |
12ca7188 NM |
580 | static inline struct thermal_cooling_device * |
581 | thermal_cooling_device_register(char *type, void *devdata, | |
582 | const struct thermal_cooling_device_ops *ops) | |
583 | { return ERR_PTR(-ENODEV); } | |
584 | static inline struct thermal_cooling_device * | |
585 | thermal_of_cooling_device_register(struct device_node *np, | |
586 | char *type, void *devdata, const struct thermal_cooling_device_ops *ops) | |
587 | { return ERR_PTR(-ENODEV); } | |
588 | static inline void thermal_cooling_device_unregister( | |
589 | struct thermal_cooling_device *cdev) | |
590 | { } | |
591 | static inline struct thermal_zone_device *thermal_zone_get_zone_by_name( | |
592 | const char *name) | |
593 | { return ERR_PTR(-ENODEV); } | |
3e36d67e HG |
594 | static inline struct thermal_zone_device *thermal_zone_get_zone_by_cool_np( |
595 | struct device_node *cool_np) | |
596 | { return ERR_PTR(-ENODEV); } | |
12ca7188 | 597 | static inline int thermal_zone_get_temp( |
17e8351a | 598 | struct thermal_zone_device *tz, int *temp) |
12ca7188 | 599 | { return -ENODEV; } |
4a7069a3 RN |
600 | static inline int thermal_zone_get_slope( |
601 | struct thermal_zone_device *tz) | |
602 | { return -ENODEV; } | |
603 | static inline int thermal_zone_get_offset( | |
604 | struct thermal_zone_device *tz) | |
605 | { return -ENODEV; } | |
12ca7188 NM |
606 | static inline int get_tz_trend(struct thermal_zone_device *tz, int trip) |
607 | { return -ENODEV; } | |
608 | static inline struct thermal_instance * | |
609 | get_thermal_instance(struct thermal_zone_device *tz, | |
610 | struct thermal_cooling_device *cdev, int trip) | |
611 | { return ERR_PTR(-ENODEV); } | |
612 | static inline void thermal_cdev_update(struct thermal_cooling_device *cdev) | |
613 | { } | |
614 | static inline void thermal_notify_framework(struct thermal_zone_device *tz, | |
615 | int trip) | |
616 | { } | |
617 | #endif /* CONFIG_THERMAL */ | |
618 | ||
619 | #if defined(CONFIG_NET) && IS_ENABLED(CONFIG_THERMAL) | |
8ab3e6a0 EV |
620 | extern int thermal_generate_netlink_event(struct thermal_zone_device *tz, |
621 | enum events event); | |
af06216a | 622 | #else |
f8b58705 | 623 | static inline int thermal_generate_netlink_event(struct thermal_zone_device *tz, |
8ab3e6a0 | 624 | enum events event) |
af06216a RW |
625 | { |
626 | return 0; | |
627 | } | |
628 | #endif | |
203d3d4a | 629 | |
a0dd25b2 | 630 | #endif /* __THERMAL_H__ */ |