Merge tag 'nfsd-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
[linux-2.6-block.git] / include / linux / hwmon.h
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b886d83c 1/* SPDX-License-Identifier: GPL-2.0-only */
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2/*
3 hwmon.h - part of lm_sensors, Linux kernel modules for hardware monitoring
4
5 This file declares helper functions for the sysfs class "hwmon",
6 for use by sensors drivers.
7
8 Copyright (C) 2005 Mark M. Hoffman <mhoffman@lightlink.com>
9
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10*/
11
12#ifndef _HWMON_H_
13#define _HWMON_H_
14
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15#include <linux/bitops.h>
16
313162d0 17struct device;
bab2243c 18struct attribute_group;
1236441f 19
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20enum hwmon_sensor_types {
21 hwmon_chip,
22 hwmon_temp,
23 hwmon_in,
24 hwmon_curr,
25 hwmon_power,
26 hwmon_energy,
6bfcca44 27 hwmon_humidity,
8faee73f 28 hwmon_fan,
f9f7bb3a 29 hwmon_pwm,
4413405f 30 hwmon_intrusion,
d5753800 31 hwmon_max,
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32};
33
34enum hwmon_chip_attributes {
35 hwmon_chip_temp_reset_history,
00d616cf 36 hwmon_chip_in_reset_history,
9b26947c 37 hwmon_chip_curr_reset_history,
b308f5c7 38 hwmon_chip_power_reset_history,
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39 hwmon_chip_register_tz,
40 hwmon_chip_update_interval,
41 hwmon_chip_alarms,
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42 hwmon_chip_samples,
43 hwmon_chip_curr_samples,
44 hwmon_chip_in_samples,
45 hwmon_chip_power_samples,
46 hwmon_chip_temp_samples,
fe6ac237 47 hwmon_chip_beep_enable,
4ce6e8a8 48 hwmon_chip_pec,
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49};
50
51#define HWMON_C_TEMP_RESET_HISTORY BIT(hwmon_chip_temp_reset_history)
52#define HWMON_C_IN_RESET_HISTORY BIT(hwmon_chip_in_reset_history)
9b26947c 53#define HWMON_C_CURR_RESET_HISTORY BIT(hwmon_chip_curr_reset_history)
b308f5c7 54#define HWMON_C_POWER_RESET_HISTORY BIT(hwmon_chip_power_reset_history)
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55#define HWMON_C_REGISTER_TZ BIT(hwmon_chip_register_tz)
56#define HWMON_C_UPDATE_INTERVAL BIT(hwmon_chip_update_interval)
57#define HWMON_C_ALARMS BIT(hwmon_chip_alarms)
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58#define HWMON_C_SAMPLES BIT(hwmon_chip_samples)
59#define HWMON_C_CURR_SAMPLES BIT(hwmon_chip_curr_samples)
60#define HWMON_C_IN_SAMPLES BIT(hwmon_chip_in_samples)
61#define HWMON_C_POWER_SAMPLES BIT(hwmon_chip_power_samples)
62#define HWMON_C_TEMP_SAMPLES BIT(hwmon_chip_temp_samples)
fe6ac237 63#define HWMON_C_BEEP_ENABLE BIT(hwmon_chip_beep_enable)
4ce6e8a8 64#define HWMON_C_PEC BIT(hwmon_chip_pec)
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65
66enum hwmon_temp_attributes {
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67 hwmon_temp_enable,
68 hwmon_temp_input,
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69 hwmon_temp_type,
70 hwmon_temp_lcrit,
71 hwmon_temp_lcrit_hyst,
72 hwmon_temp_min,
73 hwmon_temp_min_hyst,
74 hwmon_temp_max,
75 hwmon_temp_max_hyst,
76 hwmon_temp_crit,
77 hwmon_temp_crit_hyst,
78 hwmon_temp_emergency,
79 hwmon_temp_emergency_hyst,
80 hwmon_temp_alarm,
81 hwmon_temp_lcrit_alarm,
82 hwmon_temp_min_alarm,
83 hwmon_temp_max_alarm,
84 hwmon_temp_crit_alarm,
85 hwmon_temp_emergency_alarm,
86 hwmon_temp_fault,
87 hwmon_temp_offset,
88 hwmon_temp_label,
89 hwmon_temp_lowest,
90 hwmon_temp_highest,
91 hwmon_temp_reset_history,
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92 hwmon_temp_rated_min,
93 hwmon_temp_rated_max,
fe6ac237 94 hwmon_temp_beep,
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95};
96
002c6b54 97#define HWMON_T_ENABLE BIT(hwmon_temp_enable)
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98#define HWMON_T_INPUT BIT(hwmon_temp_input)
99#define HWMON_T_TYPE BIT(hwmon_temp_type)
100#define HWMON_T_LCRIT BIT(hwmon_temp_lcrit)
101#define HWMON_T_LCRIT_HYST BIT(hwmon_temp_lcrit_hyst)
102#define HWMON_T_MIN BIT(hwmon_temp_min)
103#define HWMON_T_MIN_HYST BIT(hwmon_temp_min_hyst)
104#define HWMON_T_MAX BIT(hwmon_temp_max)
105#define HWMON_T_MAX_HYST BIT(hwmon_temp_max_hyst)
106#define HWMON_T_CRIT BIT(hwmon_temp_crit)
107#define HWMON_T_CRIT_HYST BIT(hwmon_temp_crit_hyst)
108#define HWMON_T_EMERGENCY BIT(hwmon_temp_emergency)
109#define HWMON_T_EMERGENCY_HYST BIT(hwmon_temp_emergency_hyst)
a5023a99 110#define HWMON_T_ALARM BIT(hwmon_temp_alarm)
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111#define HWMON_T_MIN_ALARM BIT(hwmon_temp_min_alarm)
112#define HWMON_T_MAX_ALARM BIT(hwmon_temp_max_alarm)
113#define HWMON_T_CRIT_ALARM BIT(hwmon_temp_crit_alarm)
2fe31e43 114#define HWMON_T_LCRIT_ALARM BIT(hwmon_temp_lcrit_alarm)
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115#define HWMON_T_EMERGENCY_ALARM BIT(hwmon_temp_emergency_alarm)
116#define HWMON_T_FAULT BIT(hwmon_temp_fault)
117#define HWMON_T_OFFSET BIT(hwmon_temp_offset)
118#define HWMON_T_LABEL BIT(hwmon_temp_label)
119#define HWMON_T_LOWEST BIT(hwmon_temp_lowest)
120#define HWMON_T_HIGHEST BIT(hwmon_temp_highest)
121#define HWMON_T_RESET_HISTORY BIT(hwmon_temp_reset_history)
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122#define HWMON_T_RATED_MIN BIT(hwmon_temp_rated_min)
123#define HWMON_T_RATED_MAX BIT(hwmon_temp_rated_max)
fe6ac237 124#define HWMON_T_BEEP BIT(hwmon_temp_beep)
d560168b 125
00d616cf 126enum hwmon_in_attributes {
002c6b54 127 hwmon_in_enable,
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128 hwmon_in_input,
129 hwmon_in_min,
130 hwmon_in_max,
131 hwmon_in_lcrit,
132 hwmon_in_crit,
133 hwmon_in_average,
134 hwmon_in_lowest,
135 hwmon_in_highest,
136 hwmon_in_reset_history,
137 hwmon_in_label,
138 hwmon_in_alarm,
139 hwmon_in_min_alarm,
140 hwmon_in_max_alarm,
141 hwmon_in_lcrit_alarm,
142 hwmon_in_crit_alarm,
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143 hwmon_in_rated_min,
144 hwmon_in_rated_max,
fe6ac237 145 hwmon_in_beep,
35c1bfb9 146 hwmon_in_fault,
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147};
148
002c6b54 149#define HWMON_I_ENABLE BIT(hwmon_in_enable)
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150#define HWMON_I_INPUT BIT(hwmon_in_input)
151#define HWMON_I_MIN BIT(hwmon_in_min)
152#define HWMON_I_MAX BIT(hwmon_in_max)
153#define HWMON_I_LCRIT BIT(hwmon_in_lcrit)
154#define HWMON_I_CRIT BIT(hwmon_in_crit)
155#define HWMON_I_AVERAGE BIT(hwmon_in_average)
156#define HWMON_I_LOWEST BIT(hwmon_in_lowest)
157#define HWMON_I_HIGHEST BIT(hwmon_in_highest)
158#define HWMON_I_RESET_HISTORY BIT(hwmon_in_reset_history)
159#define HWMON_I_LABEL BIT(hwmon_in_label)
160#define HWMON_I_ALARM BIT(hwmon_in_alarm)
161#define HWMON_I_MIN_ALARM BIT(hwmon_in_min_alarm)
162#define HWMON_I_MAX_ALARM BIT(hwmon_in_max_alarm)
163#define HWMON_I_LCRIT_ALARM BIT(hwmon_in_lcrit_alarm)
164#define HWMON_I_CRIT_ALARM BIT(hwmon_in_crit_alarm)
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165#define HWMON_I_RATED_MIN BIT(hwmon_in_rated_min)
166#define HWMON_I_RATED_MAX BIT(hwmon_in_rated_max)
fe6ac237 167#define HWMON_I_BEEP BIT(hwmon_in_beep)
35c1bfb9 168#define HWMON_I_FAULT BIT(hwmon_in_fault)
00d616cf 169
9b26947c 170enum hwmon_curr_attributes {
002c6b54 171 hwmon_curr_enable,
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172 hwmon_curr_input,
173 hwmon_curr_min,
174 hwmon_curr_max,
175 hwmon_curr_lcrit,
176 hwmon_curr_crit,
177 hwmon_curr_average,
178 hwmon_curr_lowest,
179 hwmon_curr_highest,
180 hwmon_curr_reset_history,
181 hwmon_curr_label,
182 hwmon_curr_alarm,
183 hwmon_curr_min_alarm,
184 hwmon_curr_max_alarm,
185 hwmon_curr_lcrit_alarm,
186 hwmon_curr_crit_alarm,
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187 hwmon_curr_rated_min,
188 hwmon_curr_rated_max,
fe6ac237 189 hwmon_curr_beep,
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190};
191
002c6b54 192#define HWMON_C_ENABLE BIT(hwmon_curr_enable)
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193#define HWMON_C_INPUT BIT(hwmon_curr_input)
194#define HWMON_C_MIN BIT(hwmon_curr_min)
195#define HWMON_C_MAX BIT(hwmon_curr_max)
196#define HWMON_C_LCRIT BIT(hwmon_curr_lcrit)
197#define HWMON_C_CRIT BIT(hwmon_curr_crit)
198#define HWMON_C_AVERAGE BIT(hwmon_curr_average)
199#define HWMON_C_LOWEST BIT(hwmon_curr_lowest)
200#define HWMON_C_HIGHEST BIT(hwmon_curr_highest)
201#define HWMON_C_RESET_HISTORY BIT(hwmon_curr_reset_history)
202#define HWMON_C_LABEL BIT(hwmon_curr_label)
203#define HWMON_C_ALARM BIT(hwmon_curr_alarm)
204#define HWMON_C_MIN_ALARM BIT(hwmon_curr_min_alarm)
205#define HWMON_C_MAX_ALARM BIT(hwmon_curr_max_alarm)
206#define HWMON_C_LCRIT_ALARM BIT(hwmon_curr_lcrit_alarm)
207#define HWMON_C_CRIT_ALARM BIT(hwmon_curr_crit_alarm)
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208#define HWMON_C_RATED_MIN BIT(hwmon_curr_rated_min)
209#define HWMON_C_RATED_MAX BIT(hwmon_curr_rated_max)
fe6ac237 210#define HWMON_C_BEEP BIT(hwmon_curr_beep)
9b26947c 211
b308f5c7 212enum hwmon_power_attributes {
002c6b54 213 hwmon_power_enable,
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214 hwmon_power_average,
215 hwmon_power_average_interval,
216 hwmon_power_average_interval_max,
217 hwmon_power_average_interval_min,
218 hwmon_power_average_highest,
219 hwmon_power_average_lowest,
220 hwmon_power_average_max,
221 hwmon_power_average_min,
222 hwmon_power_input,
223 hwmon_power_input_highest,
224 hwmon_power_input_lowest,
225 hwmon_power_reset_history,
226 hwmon_power_accuracy,
227 hwmon_power_cap,
228 hwmon_power_cap_hyst,
229 hwmon_power_cap_max,
230 hwmon_power_cap_min,
aa7f29b0 231 hwmon_power_min,
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232 hwmon_power_max,
233 hwmon_power_crit,
aa7f29b0 234 hwmon_power_lcrit,
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235 hwmon_power_label,
236 hwmon_power_alarm,
237 hwmon_power_cap_alarm,
aa7f29b0 238 hwmon_power_min_alarm,
b308f5c7 239 hwmon_power_max_alarm,
aa7f29b0 240 hwmon_power_lcrit_alarm,
b308f5c7 241 hwmon_power_crit_alarm,
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242 hwmon_power_rated_min,
243 hwmon_power_rated_max,
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244};
245
002c6b54 246#define HWMON_P_ENABLE BIT(hwmon_power_enable)
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247#define HWMON_P_AVERAGE BIT(hwmon_power_average)
248#define HWMON_P_AVERAGE_INTERVAL BIT(hwmon_power_average_interval)
249#define HWMON_P_AVERAGE_INTERVAL_MAX BIT(hwmon_power_average_interval_max)
250#define HWMON_P_AVERAGE_INTERVAL_MIN BIT(hwmon_power_average_interval_min)
251#define HWMON_P_AVERAGE_HIGHEST BIT(hwmon_power_average_highest)
252#define HWMON_P_AVERAGE_LOWEST BIT(hwmon_power_average_lowest)
253#define HWMON_P_AVERAGE_MAX BIT(hwmon_power_average_max)
254#define HWMON_P_AVERAGE_MIN BIT(hwmon_power_average_min)
255#define HWMON_P_INPUT BIT(hwmon_power_input)
256#define HWMON_P_INPUT_HIGHEST BIT(hwmon_power_input_highest)
257#define HWMON_P_INPUT_LOWEST BIT(hwmon_power_input_lowest)
258#define HWMON_P_RESET_HISTORY BIT(hwmon_power_reset_history)
259#define HWMON_P_ACCURACY BIT(hwmon_power_accuracy)
260#define HWMON_P_CAP BIT(hwmon_power_cap)
261#define HWMON_P_CAP_HYST BIT(hwmon_power_cap_hyst)
262#define HWMON_P_CAP_MAX BIT(hwmon_power_cap_max)
263#define HWMON_P_CAP_MIN BIT(hwmon_power_cap_min)
aa7f29b0 264#define HWMON_P_MIN BIT(hwmon_power_min)
b308f5c7 265#define HWMON_P_MAX BIT(hwmon_power_max)
aa7f29b0 266#define HWMON_P_LCRIT BIT(hwmon_power_lcrit)
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267#define HWMON_P_CRIT BIT(hwmon_power_crit)
268#define HWMON_P_LABEL BIT(hwmon_power_label)
269#define HWMON_P_ALARM BIT(hwmon_power_alarm)
270#define HWMON_P_CAP_ALARM BIT(hwmon_power_cap_alarm)
30945d31 271#define HWMON_P_MIN_ALARM BIT(hwmon_power_min_alarm)
b308f5c7 272#define HWMON_P_MAX_ALARM BIT(hwmon_power_max_alarm)
aa7f29b0 273#define HWMON_P_LCRIT_ALARM BIT(hwmon_power_lcrit_alarm)
b308f5c7 274#define HWMON_P_CRIT_ALARM BIT(hwmon_power_crit_alarm)
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275#define HWMON_P_RATED_MIN BIT(hwmon_power_rated_min)
276#define HWMON_P_RATED_MAX BIT(hwmon_power_rated_max)
b308f5c7 277
6bfcca44 278enum hwmon_energy_attributes {
002c6b54 279 hwmon_energy_enable,
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280 hwmon_energy_input,
281 hwmon_energy_label,
282};
283
002c6b54 284#define HWMON_E_ENABLE BIT(hwmon_energy_enable)
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285#define HWMON_E_INPUT BIT(hwmon_energy_input)
286#define HWMON_E_LABEL BIT(hwmon_energy_label)
287
288enum hwmon_humidity_attributes {
002c6b54 289 hwmon_humidity_enable,
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290 hwmon_humidity_input,
291 hwmon_humidity_label,
292 hwmon_humidity_min,
293 hwmon_humidity_min_hyst,
294 hwmon_humidity_max,
295 hwmon_humidity_max_hyst,
296 hwmon_humidity_alarm,
297 hwmon_humidity_fault,
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298 hwmon_humidity_rated_min,
299 hwmon_humidity_rated_max,
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300 hwmon_humidity_min_alarm,
301 hwmon_humidity_max_alarm,
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302};
303
002c6b54 304#define HWMON_H_ENABLE BIT(hwmon_humidity_enable)
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305#define HWMON_H_INPUT BIT(hwmon_humidity_input)
306#define HWMON_H_LABEL BIT(hwmon_humidity_label)
307#define HWMON_H_MIN BIT(hwmon_humidity_min)
308#define HWMON_H_MIN_HYST BIT(hwmon_humidity_min_hyst)
309#define HWMON_H_MAX BIT(hwmon_humidity_max)
310#define HWMON_H_MAX_HYST BIT(hwmon_humidity_max_hyst)
311#define HWMON_H_ALARM BIT(hwmon_humidity_alarm)
312#define HWMON_H_FAULT BIT(hwmon_humidity_fault)
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313#define HWMON_H_RATED_MIN BIT(hwmon_humidity_rated_min)
314#define HWMON_H_RATED_MAX BIT(hwmon_humidity_rated_max)
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315#define HWMON_H_MIN_ALARM BIT(hwmon_humidity_min_alarm)
316#define HWMON_H_MAX_ALARM BIT(hwmon_humidity_max_alarm)
6bfcca44 317
8faee73f 318enum hwmon_fan_attributes {
002c6b54 319 hwmon_fan_enable,
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320 hwmon_fan_input,
321 hwmon_fan_label,
322 hwmon_fan_min,
323 hwmon_fan_max,
324 hwmon_fan_div,
325 hwmon_fan_pulses,
326 hwmon_fan_target,
327 hwmon_fan_alarm,
328 hwmon_fan_min_alarm,
329 hwmon_fan_max_alarm,
330 hwmon_fan_fault,
fe6ac237 331 hwmon_fan_beep,
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332};
333
002c6b54 334#define HWMON_F_ENABLE BIT(hwmon_fan_enable)
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335#define HWMON_F_INPUT BIT(hwmon_fan_input)
336#define HWMON_F_LABEL BIT(hwmon_fan_label)
337#define HWMON_F_MIN BIT(hwmon_fan_min)
338#define HWMON_F_MAX BIT(hwmon_fan_max)
339#define HWMON_F_DIV BIT(hwmon_fan_div)
340#define HWMON_F_PULSES BIT(hwmon_fan_pulses)
341#define HWMON_F_TARGET BIT(hwmon_fan_target)
342#define HWMON_F_ALARM BIT(hwmon_fan_alarm)
343#define HWMON_F_MIN_ALARM BIT(hwmon_fan_min_alarm)
344#define HWMON_F_MAX_ALARM BIT(hwmon_fan_max_alarm)
345#define HWMON_F_FAULT BIT(hwmon_fan_fault)
fe6ac237 346#define HWMON_F_BEEP BIT(hwmon_fan_beep)
8faee73f 347
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348enum hwmon_pwm_attributes {
349 hwmon_pwm_input,
350 hwmon_pwm_enable,
351 hwmon_pwm_mode,
352 hwmon_pwm_freq,
e75d16e5 353 hwmon_pwm_auto_channels_temp,
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354};
355
356#define HWMON_PWM_INPUT BIT(hwmon_pwm_input)
357#define HWMON_PWM_ENABLE BIT(hwmon_pwm_enable)
358#define HWMON_PWM_MODE BIT(hwmon_pwm_mode)
359#define HWMON_PWM_FREQ BIT(hwmon_pwm_freq)
e75d16e5 360#define HWMON_PWM_AUTO_CHANNELS_TEMP BIT(hwmon_pwm_auto_channels_temp)
f9f7bb3a 361
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362enum hwmon_intrusion_attributes {
363 hwmon_intrusion_alarm,
364 hwmon_intrusion_beep,
365};
366#define HWMON_INTRUSION_ALARM BIT(hwmon_intrusion_alarm)
367#define HWMON_INTRUSION_BEEP BIT(hwmon_intrusion_beep)
368
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369/**
370 * struct hwmon_ops - hwmon device operations
371 * @is_visible: Callback to return attribute visibility. Mandatory.
372 * Parameters are:
373 * @const void *drvdata:
374 * Pointer to driver-private data structure passed
375 * as argument to hwmon_device_register_with_info().
376 * @type: Sensor type
377 * @attr: Sensor attribute
378 * @channel:
379 * Channel number
380 * The function returns the file permissions.
381 * If the return value is 0, no attribute will be created.
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382 * @read: Read callback for data attributes. Mandatory if readable
383 * data attributes are present.
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384 * Parameters are:
385 * @dev: Pointer to hardware monitoring device
386 * @type: Sensor type
387 * @attr: Sensor attribute
388 * @channel:
389 * Channel number
390 * @val: Pointer to returned value
391 * The function returns 0 on success or a negative error number.
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392 * @read_string:
393 * Read callback for string attributes. Mandatory if string
394 * attributes are present.
395 * Parameters are:
396 * @dev: Pointer to hardware monitoring device
397 * @type: Sensor type
398 * @attr: Sensor attribute
399 * @channel:
400 * Channel number
401 * @str: Pointer to returned string
402 * The function returns 0 on success or a negative error number.
403 * @write: Write callback for data attributes. Mandatory if writeable
404 * data attributes are present.
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405 * Parameters are:
406 * @dev: Pointer to hardware monitoring device
407 * @type: Sensor type
408 * @attr: Sensor attribute
409 * @channel:
410 * Channel number
411 * @val: Value to write
412 * The function returns 0 on success or a negative error number.
413 */
414struct hwmon_ops {
415 umode_t (*is_visible)(const void *drvdata, enum hwmon_sensor_types type,
416 u32 attr, int channel);
417 int (*read)(struct device *dev, enum hwmon_sensor_types type,
418 u32 attr, int channel, long *val);
e159ab5c 419 int (*read_string)(struct device *dev, enum hwmon_sensor_types type,
5ba6bcbc 420 u32 attr, int channel, const char **str);
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421 int (*write)(struct device *dev, enum hwmon_sensor_types type,
422 u32 attr, int channel, long val);
423};
424
425/**
130d1688 426 * struct hwmon_channel_info - Channel information
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427 * @type: Channel type.
428 * @config: Pointer to NULL-terminated list of channel parameters.
429 * Use for per-channel attributes.
430 */
431struct hwmon_channel_info {
432 enum hwmon_sensor_types type;
433 const u32 *config;
434};
435
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436#define HWMON_CHANNEL_INFO(stype, ...) \
437 (&(const struct hwmon_channel_info) { \
438 .type = hwmon_##stype, \
439 .config = (const u32 []) { \
440 __VA_ARGS__, 0 \
441 } \
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442 })
443
d560168b 444/**
130d1688 445 * struct hwmon_chip_info - Chip configuration
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446 * @ops: Pointer to hwmon operations.
447 * @info: Null-terminated list of channel information.
448 */
449struct hwmon_chip_info {
450 const struct hwmon_ops *ops;
d8cc9415 451 const struct hwmon_channel_info * const *info;
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452};
453
af1bd36c 454/* hwmon_device_register() is deprecated */
1beeffe4 455struct device *hwmon_device_register(struct device *dev);
af1bd36c 456
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457/*
458 * hwmon_device_register_with_groups() and
459 * devm_hwmon_device_register_with_groups() are deprecated.
460 */
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461struct device *
462hwmon_device_register_with_groups(struct device *dev, const char *name,
463 void *drvdata,
464 const struct attribute_group **groups);
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465struct device *
466devm_hwmon_device_register_with_groups(struct device *dev, const char *name,
467 void *drvdata,
468 const struct attribute_group **groups);
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469struct device *
470hwmon_device_register_with_info(struct device *dev,
471 const char *name, void *drvdata,
472 const struct hwmon_chip_info *info,
848ba0a2 473 const struct attribute_group **extra_groups);
d560168b 474struct device *
e5d21072
GR
475hwmon_device_register_for_thermal(struct device *dev, const char *name,
476 void *drvdata);
477struct device *
d560168b 478devm_hwmon_device_register_with_info(struct device *dev,
848ba0a2
GR
479 const char *name, void *drvdata,
480 const struct hwmon_chip_info *info,
481 const struct attribute_group **extra_groups);
1236441f 482
1beeffe4 483void hwmon_device_unregister(struct device *dev);
1236441f 484
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485int hwmon_notify_event(struct device *dev, enum hwmon_sensor_types type,
486 u32 attr, int channel);
487
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MW
488char *hwmon_sanitize_name(const char *name);
489char *devm_hwmon_sanitize_name(struct device *dev, const char *name);
490
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AL
491/**
492 * hwmon_is_bad_char - Is the char invalid in a hwmon name
493 * @ch: the char to be considered
494 *
495 * hwmon_is_bad_char() can be used to determine if the given character
496 * may not be used in a hwmon name.
497 *
498 * Returns true if the char is invalid, false otherwise.
499 */
500static inline bool hwmon_is_bad_char(const char ch)
501{
502 switch (ch) {
503 case '-':
504 case '*':
505 case ' ':
506 case '\t':
507 case '\n':
508 return true;
509 default:
510 return false;
511 }
512}
513
1236441f 514#endif