1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * A hwmon driver for the Analog Devices ADT7462 |
4 | * Copyright (C) 2008 IBM |
5 | * |
6 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
7 | */ |
8 | |
9 | #include <linux/module.h> |
10 | #include <linux/jiffies.h> |
11 | #include <linux/i2c.h> |
12 | #include <linux/hwmon.h> |
13 | #include <linux/hwmon-sysfs.h> |
14 | #include <linux/err.h> |
15 | #include <linux/mutex.h> |
16 | #include <linux/log2.h> |
17 | #include <linux/slab.h> |
18 | |
19 | /* Addresses to scan */ |
20 | static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END }; |
21 | |
22 | /* ADT7462 registers */ |
23 | #define ADT7462_REG_DEVICE 0x3D |
24 | #define ADT7462_REG_VENDOR 0x3E |
25 | #define ADT7462_REG_REVISION 0x3F |
26 | |
27 | #define ADT7462_REG_MIN_TEMP_BASE_ADDR 0x44 |
28 | #define ADT7462_REG_MIN_TEMP_MAX_ADDR 0x47 |
29 | #define ADT7462_REG_MAX_TEMP_BASE_ADDR 0x48 |
30 | #define ADT7462_REG_MAX_TEMP_MAX_ADDR 0x4B |
31 | #define ADT7462_REG_TEMP_BASE_ADDR 0x88 |
32 | #define ADT7462_REG_TEMP_MAX_ADDR 0x8F |
33 | |
34 | #define ADT7462_REG_FAN_BASE_ADDR 0x98 |
35 | #define ADT7462_REG_FAN_MAX_ADDR 0x9F |
36 | #define ADT7462_REG_FAN2_BASE_ADDR 0xA2 |
37 | #define ADT7462_REG_FAN2_MAX_ADDR 0xA9 |
38 | #define ADT7462_REG_FAN_ENABLE 0x07 |
39 | #define ADT7462_REG_FAN_MIN_BASE_ADDR 0x78 |
40 | #define ADT7462_REG_FAN_MIN_MAX_ADDR 0x7F |
41 | |
42 | #define ADT7462_REG_CFG2 0x02 |
43 | #define ADT7462_FSPD_MASK 0x20 |
44 | |
45 | #define ADT7462_REG_PWM_BASE_ADDR 0xAA |
46 | #define ADT7462_REG_PWM_MAX_ADDR 0xAD |
47 | #define ADT7462_REG_PWM_MIN_BASE_ADDR 0x28 |
48 | #define ADT7462_REG_PWM_MIN_MAX_ADDR 0x2B |
49 | #define ADT7462_REG_PWM_MAX 0x2C |
50 | #define ADT7462_REG_PWM_TEMP_MIN_BASE_ADDR 0x5C |
51 | #define ADT7462_REG_PWM_TEMP_MIN_MAX_ADDR 0x5F |
52 | #define ADT7462_REG_PWM_TEMP_RANGE_BASE_ADDR 0x60 |
53 | #define ADT7462_REG_PWM_TEMP_RANGE_MAX_ADDR 0x63 |
54 | #define ADT7462_PWM_HYST_MASK 0x0F |
55 | #define ADT7462_PWM_RANGE_MASK 0xF0 |
56 | #define ADT7462_PWM_RANGE_SHIFT 4 |
57 | #define ADT7462_REG_PWM_CFG_BASE_ADDR 0x21 |
58 | #define ADT7462_REG_PWM_CFG_MAX_ADDR 0x24 |
59 | #define ADT7462_PWM_CHANNEL_MASK 0xE0 |
60 | #define ADT7462_PWM_CHANNEL_SHIFT 5 |
61 | |
62 | #define ADT7462_REG_PIN_CFG_BASE_ADDR 0x10 |
63 | #define ADT7462_REG_PIN_CFG_MAX_ADDR 0x13 |
64 | #define ADT7462_PIN7_INPUT 0x01 /* cfg0 */ |
65 | #define ADT7462_DIODE3_INPUT 0x20 |
66 | #define ADT7462_DIODE1_INPUT 0x40 |
67 | #define ADT7462_VID_INPUT 0x80 |
68 | #define ADT7462_PIN22_INPUT 0x04 /* cfg1 */ |
69 | #define ADT7462_PIN21_INPUT 0x08 |
70 | #define ADT7462_PIN19_INPUT 0x10 |
71 | #define ADT7462_PIN15_INPUT 0x20 |
72 | #define ADT7462_PIN13_INPUT 0x40 |
73 | #define ADT7462_PIN8_INPUT 0x80 |
74 | #define ADT7462_PIN23_MASK 0x03 |
75 | #define ADT7462_PIN23_SHIFT 0 |
76 | #define ADT7462_PIN26_MASK 0x0C /* cfg2 */ |
77 | #define ADT7462_PIN26_SHIFT 2 |
78 | #define ADT7462_PIN25_MASK 0x30 |
79 | #define ADT7462_PIN25_SHIFT 4 |
80 | #define ADT7462_PIN24_MASK 0xC0 |
81 | #define ADT7462_PIN24_SHIFT 6 |
82 | #define ADT7462_PIN26_VOLT_INPUT 0x08 |
83 | #define ADT7462_PIN25_VOLT_INPUT 0x20 |
84 | #define ADT7462_PIN28_SHIFT 4 /* cfg3 */ |
85 | #define ADT7462_PIN28_VOLT 0x5 |
86 | |
87 | #define ADT7462_REG_ALARM1 0xB8 |
88 | #define ADT7462_LT_ALARM 0x02 |
89 | #define ADT7462_R1T_ALARM 0x04 |
90 | #define ADT7462_R2T_ALARM 0x08 |
91 | #define ADT7462_R3T_ALARM 0x10 |
92 | #define ADT7462_REG_ALARM2 0xBB |
93 | #define ADT7462_V0_ALARM 0x01 |
94 | #define ADT7462_V1_ALARM 0x02 |
95 | #define ADT7462_V2_ALARM 0x04 |
96 | #define ADT7462_V3_ALARM 0x08 |
97 | #define ADT7462_V4_ALARM 0x10 |
98 | #define ADT7462_V5_ALARM 0x20 |
99 | #define ADT7462_V6_ALARM 0x40 |
100 | #define ADT7462_V7_ALARM 0x80 |
101 | #define ADT7462_REG_ALARM3 0xBC |
102 | #define ADT7462_V8_ALARM 0x08 |
103 | #define ADT7462_V9_ALARM 0x10 |
104 | #define ADT7462_V10_ALARM 0x20 |
105 | #define ADT7462_V11_ALARM 0x40 |
106 | #define ADT7462_V12_ALARM 0x80 |
107 | #define ADT7462_REG_ALARM4 0xBD |
108 | #define ADT7462_F0_ALARM 0x01 |
109 | #define ADT7462_F1_ALARM 0x02 |
110 | #define ADT7462_F2_ALARM 0x04 |
111 | #define ADT7462_F3_ALARM 0x08 |
112 | #define ADT7462_F4_ALARM 0x10 |
113 | #define ADT7462_F5_ALARM 0x20 |
114 | #define ADT7462_F6_ALARM 0x40 |
115 | #define ADT7462_F7_ALARM 0x80 |
116 | #define ADT7462_ALARM1 0x0000 |
117 | #define ADT7462_ALARM2 0x0100 |
118 | #define ADT7462_ALARM3 0x0200 |
119 | #define ADT7462_ALARM4 0x0300 |
120 | #define ADT7462_ALARM_REG_SHIFT 8 |
121 | #define ADT7462_ALARM_FLAG_MASK 0x0F |
122 | |
123 | #define ADT7462_TEMP_COUNT 4 |
124 | #define ADT7462_TEMP_REG(x) (ADT7462_REG_TEMP_BASE_ADDR + ((x) * 2)) |
125 | #define ADT7462_TEMP_MIN_REG(x) (ADT7462_REG_MIN_TEMP_BASE_ADDR + (x)) |
126 | #define ADT7462_TEMP_MAX_REG(x) (ADT7462_REG_MAX_TEMP_BASE_ADDR + (x)) |
127 | #define TEMP_FRAC_OFFSET 6 |
128 | |
129 | #define ADT7462_FAN_COUNT 8 |
130 | #define ADT7462_REG_FAN_MIN(x) (ADT7462_REG_FAN_MIN_BASE_ADDR + (x)) |
131 | |
132 | #define ADT7462_PWM_COUNT 4 |
133 | #define ADT7462_REG_PWM(x) (ADT7462_REG_PWM_BASE_ADDR + (x)) |
134 | #define ADT7462_REG_PWM_MIN(x) (ADT7462_REG_PWM_MIN_BASE_ADDR + (x)) |
135 | #define ADT7462_REG_PWM_TMIN(x) \ |
136 | (ADT7462_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) |
137 | #define ADT7462_REG_PWM_TRANGE(x) \ |
138 | (ADT7462_REG_PWM_TEMP_RANGE_BASE_ADDR + (x)) |
139 | |
140 | #define ADT7462_PIN_CFG_REG_COUNT 4 |
141 | #define ADT7462_REG_PIN_CFG(x) (ADT7462_REG_PIN_CFG_BASE_ADDR + (x)) |
142 | #define ADT7462_REG_PWM_CFG(x) (ADT7462_REG_PWM_CFG_BASE_ADDR + (x)) |
143 | |
144 | #define ADT7462_ALARM_REG_COUNT 4 |
145 | |
146 | /* |
147 | * The chip can measure 13 different voltage sources: |
148 | * |
149 | * 1. +12V1 (pin 7) |
150 | * 2. Vccp1/+2.5V/+1.8V/+1.5V (pin 23) |
151 | * 3. +12V3 (pin 22) |
152 | * 4. +5V (pin 21) |
153 | * 5. +1.25V/+0.9V (pin 19) |
154 | * 6. +2.5V/+1.8V (pin 15) |
155 | * 7. +3.3v (pin 13) |
156 | * 8. +12V2 (pin 8) |
157 | * 9. Vbatt/FSB_Vtt (pin 26) |
158 | * A. +3.3V/+1.2V1 (pin 25) |
159 | * B. Vccp2/+2.5V/+1.8V/+1.5V (pin 24) |
160 | * C. +1.5V ICH (only if BOTH pin 28/29 are set to +1.5V) |
161 | * D. +1.5V 3GPIO (only if BOTH pin 28/29 are set to +1.5V) |
162 | * |
163 | * Each of these 13 has a factor to convert raw to voltage. Even better, |
164 | * the pins can be connected to other sensors (tach/gpio/hot/etc), which |
165 | * makes the bookkeeping tricky. |
166 | * |
167 | * Some, but not all, of these voltages have low/high limits. |
168 | */ |
169 | #define ADT7462_VOLT_COUNT 13 |
170 | |
171 | #define ADT7462_VENDOR 0x41 |
172 | #define ADT7462_DEVICE 0x62 |
173 | /* datasheet only mentions a revision 4 */ |
174 | #define ADT7462_REVISION 0x04 |
175 | |
176 | /* How often do we reread sensors values? (In jiffies) */ |
177 | #define SENSOR_REFRESH_INTERVAL (2 * HZ) |
178 | |
179 | /* How often do we reread sensor limit values? (In jiffies) */ |
180 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) |
181 | |
182 | /* datasheet says to divide this number by the fan reading to get fan rpm */ |
183 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) |
184 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM |
185 | #define FAN_PERIOD_INVALID 65535 |
186 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) |
187 | |
188 | #define MASK_AND_SHIFT(value, prefix) \ |
189 | (((value) & prefix##_MASK) >> prefix##_SHIFT) |
190 | |
191 | struct adt7462_data { |
192 | struct i2c_client *client; |
193 | struct mutex lock; |
194 | char sensors_valid; |
195 | char limits_valid; |
196 | unsigned long sensors_last_updated; /* In jiffies */ |
197 | unsigned long limits_last_updated; /* In jiffies */ |
198 | |
199 | u8 temp[ADT7462_TEMP_COUNT]; |
200 | /* bits 6-7 are quarter pieces of temp */ |
201 | u8 temp_frac[ADT7462_TEMP_COUNT]; |
202 | u8 temp_min[ADT7462_TEMP_COUNT]; |
203 | u8 temp_max[ADT7462_TEMP_COUNT]; |
204 | u16 fan[ADT7462_FAN_COUNT]; |
205 | u8 fan_enabled; |
206 | u8 fan_min[ADT7462_FAN_COUNT]; |
207 | u8 cfg2; |
208 | u8 pwm[ADT7462_PWM_COUNT]; |
209 | u8 pin_cfg[ADT7462_PIN_CFG_REG_COUNT]; |
210 | u8 voltages[ADT7462_VOLT_COUNT]; |
211 | u8 volt_max[ADT7462_VOLT_COUNT]; |
212 | u8 volt_min[ADT7462_VOLT_COUNT]; |
213 | u8 pwm_min[ADT7462_PWM_COUNT]; |
214 | u8 pwm_tmin[ADT7462_PWM_COUNT]; |
215 | u8 pwm_trange[ADT7462_PWM_COUNT]; |
216 | u8 pwm_max; /* only one per chip */ |
217 | u8 pwm_cfg[ADT7462_PWM_COUNT]; |
218 | u8 alarms[ADT7462_ALARM_REG_COUNT]; |
219 | }; |
220 | |
221 | /* |
222 | * 16-bit registers on the ADT7462 are low-byte first. The data sheet says |
223 | * that the low byte must be read before the high byte. |
224 | */ |
225 | static inline int adt7462_read_word_data(struct i2c_client *client, u8 reg) |
226 | { |
227 | u16 foo; |
228 | foo = i2c_smbus_read_byte_data(client, command: reg); |
229 | foo |= ((u16)i2c_smbus_read_byte_data(client, command: reg + 1) << 8); |
230 | return foo; |
231 | } |
232 | |
233 | /* For some reason these registers are not contiguous. */ |
234 | static int ADT7462_REG_FAN(int fan) |
235 | { |
236 | if (fan < 4) |
237 | return ADT7462_REG_FAN_BASE_ADDR + (2 * fan); |
238 | return ADT7462_REG_FAN2_BASE_ADDR + (2 * (fan - 4)); |
239 | } |
240 | |
241 | /* Voltage registers are scattered everywhere */ |
242 | static int ADT7462_REG_VOLT_MAX(struct adt7462_data *data, int which) |
243 | { |
244 | switch (which) { |
245 | case 0: |
246 | if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) |
247 | return 0x7C; |
248 | break; |
249 | case 1: |
250 | return 0x69; |
251 | case 2: |
252 | if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) |
253 | return 0x7F; |
254 | break; |
255 | case 3: |
256 | if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) |
257 | return 0x7E; |
258 | break; |
259 | case 4: |
260 | if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) |
261 | return 0x4B; |
262 | break; |
263 | case 5: |
264 | if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) |
265 | return 0x49; |
266 | break; |
267 | case 6: |
268 | if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) |
269 | return 0x68; |
270 | break; |
271 | case 7: |
272 | if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) |
273 | return 0x7D; |
274 | break; |
275 | case 8: |
276 | if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT)) |
277 | return 0x6C; |
278 | break; |
279 | case 9: |
280 | if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT)) |
281 | return 0x6B; |
282 | break; |
283 | case 10: |
284 | return 0x6A; |
285 | case 11: |
286 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
287 | ADT7462_PIN28_VOLT && |
288 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
289 | return 0x50; |
290 | break; |
291 | case 12: |
292 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
293 | ADT7462_PIN28_VOLT && |
294 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
295 | return 0x4C; |
296 | break; |
297 | } |
298 | return 0; |
299 | } |
300 | |
301 | static int ADT7462_REG_VOLT_MIN(struct adt7462_data *data, int which) |
302 | { |
303 | switch (which) { |
304 | case 0: |
305 | if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) |
306 | return 0x6D; |
307 | break; |
308 | case 1: |
309 | return 0x72; |
310 | case 2: |
311 | if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) |
312 | return 0x6F; |
313 | break; |
314 | case 3: |
315 | if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) |
316 | return 0x71; |
317 | break; |
318 | case 4: |
319 | if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) |
320 | return 0x47; |
321 | break; |
322 | case 5: |
323 | if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) |
324 | return 0x45; |
325 | break; |
326 | case 6: |
327 | if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) |
328 | return 0x70; |
329 | break; |
330 | case 7: |
331 | if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) |
332 | return 0x6E; |
333 | break; |
334 | case 8: |
335 | if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT)) |
336 | return 0x75; |
337 | break; |
338 | case 9: |
339 | if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT)) |
340 | return 0x74; |
341 | break; |
342 | case 10: |
343 | return 0x73; |
344 | case 11: |
345 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
346 | ADT7462_PIN28_VOLT && |
347 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
348 | return 0x76; |
349 | break; |
350 | case 12: |
351 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
352 | ADT7462_PIN28_VOLT && |
353 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
354 | return 0x77; |
355 | break; |
356 | } |
357 | return 0; |
358 | } |
359 | |
360 | static int ADT7462_REG_VOLT(struct adt7462_data *data, int which) |
361 | { |
362 | switch (which) { |
363 | case 0: |
364 | if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) |
365 | return 0xA3; |
366 | break; |
367 | case 1: |
368 | return 0x90; |
369 | case 2: |
370 | if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) |
371 | return 0xA9; |
372 | break; |
373 | case 3: |
374 | if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) |
375 | return 0xA7; |
376 | break; |
377 | case 4: |
378 | if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) |
379 | return 0x8F; |
380 | break; |
381 | case 5: |
382 | if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) |
383 | return 0x8B; |
384 | break; |
385 | case 6: |
386 | if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) |
387 | return 0x96; |
388 | break; |
389 | case 7: |
390 | if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) |
391 | return 0xA5; |
392 | break; |
393 | case 8: |
394 | if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT)) |
395 | return 0x93; |
396 | break; |
397 | case 9: |
398 | if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT)) |
399 | return 0x92; |
400 | break; |
401 | case 10: |
402 | return 0x91; |
403 | case 11: |
404 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
405 | ADT7462_PIN28_VOLT && |
406 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
407 | return 0x94; |
408 | break; |
409 | case 12: |
410 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
411 | ADT7462_PIN28_VOLT && |
412 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
413 | return 0x95; |
414 | break; |
415 | } |
416 | return 0; |
417 | } |
418 | |
419 | /* Provide labels for sysfs */ |
420 | static const char *voltage_label(struct adt7462_data *data, int which) |
421 | { |
422 | switch (which) { |
423 | case 0: |
424 | if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) |
425 | return "+12V1" ; |
426 | break; |
427 | case 1: |
428 | switch (MASK_AND_SHIFT(data->pin_cfg[1], ADT7462_PIN23)) { |
429 | case 0: |
430 | return "Vccp1" ; |
431 | case 1: |
432 | return "+2.5V" ; |
433 | case 2: |
434 | return "+1.8V" ; |
435 | case 3: |
436 | return "+1.5V" ; |
437 | } |
438 | fallthrough; |
439 | case 2: |
440 | if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) |
441 | return "+12V3" ; |
442 | break; |
443 | case 3: |
444 | if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) |
445 | return "+5V" ; |
446 | break; |
447 | case 4: |
448 | if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) { |
449 | if (data->pin_cfg[1] & ADT7462_PIN19_INPUT) |
450 | return "+0.9V" ; |
451 | return "+1.25V" ; |
452 | } |
453 | break; |
454 | case 5: |
455 | if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) { |
456 | if (data->pin_cfg[1] & ADT7462_PIN19_INPUT) |
457 | return "+1.8V" ; |
458 | return "+2.5V" ; |
459 | } |
460 | break; |
461 | case 6: |
462 | if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) |
463 | return "+3.3V" ; |
464 | break; |
465 | case 7: |
466 | if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) |
467 | return "+12V2" ; |
468 | break; |
469 | case 8: |
470 | switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN26)) { |
471 | case 0: |
472 | return "Vbatt" ; |
473 | case 1: |
474 | return "FSB_Vtt" ; |
475 | } |
476 | break; |
477 | case 9: |
478 | switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN25)) { |
479 | case 0: |
480 | return "+3.3V" ; |
481 | case 1: |
482 | return "+1.2V1" ; |
483 | } |
484 | break; |
485 | case 10: |
486 | switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN24)) { |
487 | case 0: |
488 | return "Vccp2" ; |
489 | case 1: |
490 | return "+2.5V" ; |
491 | case 2: |
492 | return "+1.8V" ; |
493 | case 3: |
494 | return "+1.5" ; |
495 | } |
496 | fallthrough; |
497 | case 11: |
498 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
499 | ADT7462_PIN28_VOLT && |
500 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
501 | return "+1.5V ICH" ; |
502 | break; |
503 | case 12: |
504 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
505 | ADT7462_PIN28_VOLT && |
506 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
507 | return "+1.5V 3GPIO" ; |
508 | break; |
509 | } |
510 | return "N/A" ; |
511 | } |
512 | |
513 | /* Multipliers are actually in uV, not mV. */ |
514 | static int voltage_multiplier(struct adt7462_data *data, int which) |
515 | { |
516 | switch (which) { |
517 | case 0: |
518 | if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) |
519 | return 62500; |
520 | break; |
521 | case 1: |
522 | switch (MASK_AND_SHIFT(data->pin_cfg[1], ADT7462_PIN23)) { |
523 | case 0: |
524 | if (data->pin_cfg[0] & ADT7462_VID_INPUT) |
525 | return 12500; |
526 | return 6250; |
527 | case 1: |
528 | return 13000; |
529 | case 2: |
530 | return 9400; |
531 | case 3: |
532 | return 7800; |
533 | } |
534 | fallthrough; |
535 | case 2: |
536 | if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) |
537 | return 62500; |
538 | break; |
539 | case 3: |
540 | if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) |
541 | return 26000; |
542 | break; |
543 | case 4: |
544 | if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) { |
545 | if (data->pin_cfg[1] & ADT7462_PIN19_INPUT) |
546 | return 4690; |
547 | return 6500; |
548 | } |
549 | break; |
550 | case 5: |
551 | if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) { |
552 | if (data->pin_cfg[1] & ADT7462_PIN15_INPUT) |
553 | return 9400; |
554 | return 13000; |
555 | } |
556 | break; |
557 | case 6: |
558 | if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) |
559 | return 17200; |
560 | break; |
561 | case 7: |
562 | if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) |
563 | return 62500; |
564 | break; |
565 | case 8: |
566 | switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN26)) { |
567 | case 0: |
568 | return 15600; |
569 | case 1: |
570 | return 6250; |
571 | } |
572 | break; |
573 | case 9: |
574 | switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN25)) { |
575 | case 0: |
576 | return 17200; |
577 | case 1: |
578 | return 6250; |
579 | } |
580 | break; |
581 | case 10: |
582 | switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN24)) { |
583 | case 0: |
584 | return 6250; |
585 | case 1: |
586 | return 13000; |
587 | case 2: |
588 | return 9400; |
589 | case 3: |
590 | return 7800; |
591 | } |
592 | fallthrough; |
593 | case 11: |
594 | case 12: |
595 | if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == |
596 | ADT7462_PIN28_VOLT && |
597 | !(data->pin_cfg[0] & ADT7462_VID_INPUT)) |
598 | return 7800; |
599 | } |
600 | return 0; |
601 | } |
602 | |
603 | static int temp_enabled(struct adt7462_data *data, int which) |
604 | { |
605 | switch (which) { |
606 | case 0: |
607 | case 2: |
608 | return 1; |
609 | case 1: |
610 | if (data->pin_cfg[0] & ADT7462_DIODE1_INPUT) |
611 | return 1; |
612 | break; |
613 | case 3: |
614 | if (data->pin_cfg[0] & ADT7462_DIODE3_INPUT) |
615 | return 1; |
616 | break; |
617 | } |
618 | return 0; |
619 | } |
620 | |
621 | static const char *temp_label(struct adt7462_data *data, int which) |
622 | { |
623 | switch (which) { |
624 | case 0: |
625 | return "local" ; |
626 | case 1: |
627 | if (data->pin_cfg[0] & ADT7462_DIODE1_INPUT) |
628 | return "remote1" ; |
629 | break; |
630 | case 2: |
631 | return "remote2" ; |
632 | case 3: |
633 | if (data->pin_cfg[0] & ADT7462_DIODE3_INPUT) |
634 | return "remote3" ; |
635 | break; |
636 | } |
637 | return "N/A" ; |
638 | } |
639 | |
640 | /* Map Trange register values to mC */ |
641 | #define NUM_TRANGE_VALUES 16 |
642 | static const int trange_values[NUM_TRANGE_VALUES] = { |
643 | 2000, |
644 | 2500, |
645 | 3300, |
646 | 4000, |
647 | 5000, |
648 | 6700, |
649 | 8000, |
650 | 10000, |
651 | 13300, |
652 | 16000, |
653 | 20000, |
654 | 26700, |
655 | 32000, |
656 | 40000, |
657 | 53300, |
658 | 80000 |
659 | }; |
660 | |
661 | static int find_trange_value(int trange) |
662 | { |
663 | int i; |
664 | |
665 | for (i = 0; i < NUM_TRANGE_VALUES; i++) |
666 | if (trange_values[i] == trange) |
667 | return i; |
668 | |
669 | return -EINVAL; |
670 | } |
671 | |
672 | static struct adt7462_data *adt7462_update_device(struct device *dev) |
673 | { |
674 | struct adt7462_data *data = dev_get_drvdata(dev); |
675 | struct i2c_client *client = data->client; |
676 | unsigned long local_jiffies = jiffies; |
677 | int i; |
678 | |
679 | mutex_lock(&data->lock); |
680 | if (time_before(local_jiffies, data->sensors_last_updated + |
681 | SENSOR_REFRESH_INTERVAL) |
682 | && data->sensors_valid) |
683 | goto no_sensor_update; |
684 | |
685 | for (i = 0; i < ADT7462_TEMP_COUNT; i++) { |
686 | /* |
687 | * Reading the fractional register locks the integral |
688 | * register until both have been read. |
689 | */ |
690 | data->temp_frac[i] = i2c_smbus_read_byte_data(client, |
691 | ADT7462_TEMP_REG(i)); |
692 | data->temp[i] = i2c_smbus_read_byte_data(client, |
693 | ADT7462_TEMP_REG(i) + 1); |
694 | } |
695 | |
696 | for (i = 0; i < ADT7462_FAN_COUNT; i++) |
697 | data->fan[i] = adt7462_read_word_data(client, |
698 | reg: ADT7462_REG_FAN(fan: i)); |
699 | |
700 | data->fan_enabled = i2c_smbus_read_byte_data(client, |
701 | ADT7462_REG_FAN_ENABLE); |
702 | |
703 | for (i = 0; i < ADT7462_PWM_COUNT; i++) |
704 | data->pwm[i] = i2c_smbus_read_byte_data(client, |
705 | ADT7462_REG_PWM(i)); |
706 | |
707 | for (i = 0; i < ADT7462_PIN_CFG_REG_COUNT; i++) |
708 | data->pin_cfg[i] = i2c_smbus_read_byte_data(client, |
709 | ADT7462_REG_PIN_CFG(i)); |
710 | |
711 | for (i = 0; i < ADT7462_VOLT_COUNT; i++) { |
712 | int reg = ADT7462_REG_VOLT(data, which: i); |
713 | if (!reg) |
714 | data->voltages[i] = 0; |
715 | else |
716 | data->voltages[i] = i2c_smbus_read_byte_data(client, |
717 | command: reg); |
718 | } |
719 | |
720 | data->alarms[0] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM1); |
721 | data->alarms[1] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM2); |
722 | data->alarms[2] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM3); |
723 | data->alarms[3] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM4); |
724 | |
725 | data->sensors_last_updated = local_jiffies; |
726 | data->sensors_valid = 1; |
727 | |
728 | no_sensor_update: |
729 | if (time_before(local_jiffies, data->limits_last_updated + |
730 | LIMIT_REFRESH_INTERVAL) |
731 | && data->limits_valid) |
732 | goto out; |
733 | |
734 | for (i = 0; i < ADT7462_TEMP_COUNT; i++) { |
735 | data->temp_min[i] = i2c_smbus_read_byte_data(client, |
736 | ADT7462_TEMP_MIN_REG(i)); |
737 | data->temp_max[i] = i2c_smbus_read_byte_data(client, |
738 | ADT7462_TEMP_MAX_REG(i)); |
739 | } |
740 | |
741 | for (i = 0; i < ADT7462_FAN_COUNT; i++) |
742 | data->fan_min[i] = i2c_smbus_read_byte_data(client, |
743 | ADT7462_REG_FAN_MIN(i)); |
744 | |
745 | for (i = 0; i < ADT7462_VOLT_COUNT; i++) { |
746 | int reg = ADT7462_REG_VOLT_MAX(data, which: i); |
747 | data->volt_max[i] = |
748 | (reg ? i2c_smbus_read_byte_data(client, command: reg) : 0); |
749 | |
750 | reg = ADT7462_REG_VOLT_MIN(data, which: i); |
751 | data->volt_min[i] = |
752 | (reg ? i2c_smbus_read_byte_data(client, command: reg) : 0); |
753 | } |
754 | |
755 | for (i = 0; i < ADT7462_PWM_COUNT; i++) { |
756 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, |
757 | ADT7462_REG_PWM_MIN(i)); |
758 | data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, |
759 | ADT7462_REG_PWM_TMIN(i)); |
760 | data->pwm_trange[i] = i2c_smbus_read_byte_data(client, |
761 | ADT7462_REG_PWM_TRANGE(i)); |
762 | data->pwm_cfg[i] = i2c_smbus_read_byte_data(client, |
763 | ADT7462_REG_PWM_CFG(i)); |
764 | } |
765 | |
766 | data->pwm_max = i2c_smbus_read_byte_data(client, ADT7462_REG_PWM_MAX); |
767 | |
768 | data->cfg2 = i2c_smbus_read_byte_data(client, ADT7462_REG_CFG2); |
769 | |
770 | data->limits_last_updated = local_jiffies; |
771 | data->limits_valid = 1; |
772 | |
773 | out: |
774 | mutex_unlock(lock: &data->lock); |
775 | return data; |
776 | } |
777 | |
778 | static ssize_t temp_min_show(struct device *dev, |
779 | struct device_attribute *devattr, char *buf) |
780 | { |
781 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
782 | struct adt7462_data *data = adt7462_update_device(dev); |
783 | |
784 | if (!temp_enabled(data, which: attr->index)) |
785 | return sprintf(buf, fmt: "0\n" ); |
786 | |
787 | return sprintf(buf, fmt: "%d\n" , 1000 * (data->temp_min[attr->index] - 64)); |
788 | } |
789 | |
790 | static ssize_t temp_min_store(struct device *dev, |
791 | struct device_attribute *devattr, |
792 | const char *buf, size_t count) |
793 | { |
794 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
795 | struct adt7462_data *data = dev_get_drvdata(dev); |
796 | struct i2c_client *client = data->client; |
797 | long temp; |
798 | |
799 | if (kstrtol(s: buf, base: 10, res: &temp) || !temp_enabled(data, which: attr->index)) |
800 | return -EINVAL; |
801 | |
802 | temp = clamp_val(temp, -64000, 191000); |
803 | temp = DIV_ROUND_CLOSEST(temp, 1000) + 64; |
804 | |
805 | mutex_lock(&data->lock); |
806 | data->temp_min[attr->index] = temp; |
807 | i2c_smbus_write_byte_data(client, ADT7462_TEMP_MIN_REG(attr->index), |
808 | value: temp); |
809 | mutex_unlock(lock: &data->lock); |
810 | |
811 | return count; |
812 | } |
813 | |
814 | static ssize_t temp_max_show(struct device *dev, |
815 | struct device_attribute *devattr, char *buf) |
816 | { |
817 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
818 | struct adt7462_data *data = adt7462_update_device(dev); |
819 | |
820 | if (!temp_enabled(data, which: attr->index)) |
821 | return sprintf(buf, fmt: "0\n" ); |
822 | |
823 | return sprintf(buf, fmt: "%d\n" , 1000 * (data->temp_max[attr->index] - 64)); |
824 | } |
825 | |
826 | static ssize_t temp_max_store(struct device *dev, |
827 | struct device_attribute *devattr, |
828 | const char *buf, size_t count) |
829 | { |
830 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
831 | struct adt7462_data *data = dev_get_drvdata(dev); |
832 | struct i2c_client *client = data->client; |
833 | long temp; |
834 | |
835 | if (kstrtol(s: buf, base: 10, res: &temp) || !temp_enabled(data, which: attr->index)) |
836 | return -EINVAL; |
837 | |
838 | temp = clamp_val(temp, -64000, 191000); |
839 | temp = DIV_ROUND_CLOSEST(temp, 1000) + 64; |
840 | |
841 | mutex_lock(&data->lock); |
842 | data->temp_max[attr->index] = temp; |
843 | i2c_smbus_write_byte_data(client, ADT7462_TEMP_MAX_REG(attr->index), |
844 | value: temp); |
845 | mutex_unlock(lock: &data->lock); |
846 | |
847 | return count; |
848 | } |
849 | |
850 | static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, |
851 | char *buf) |
852 | { |
853 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
854 | struct adt7462_data *data = adt7462_update_device(dev); |
855 | u8 frac = data->temp_frac[attr->index] >> TEMP_FRAC_OFFSET; |
856 | |
857 | if (!temp_enabled(data, which: attr->index)) |
858 | return sprintf(buf, fmt: "0\n" ); |
859 | |
860 | return sprintf(buf, fmt: "%d\n" , 1000 * (data->temp[attr->index] - 64) + |
861 | 250 * frac); |
862 | } |
863 | |
864 | static ssize_t temp_label_show(struct device *dev, |
865 | struct device_attribute *devattr, char *buf) |
866 | { |
867 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
868 | struct adt7462_data *data = adt7462_update_device(dev); |
869 | |
870 | return sprintf(buf, fmt: "%s\n" , temp_label(data, which: attr->index)); |
871 | } |
872 | |
873 | static ssize_t volt_max_show(struct device *dev, |
874 | struct device_attribute *devattr, char *buf) |
875 | { |
876 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
877 | struct adt7462_data *data = adt7462_update_device(dev); |
878 | int x = voltage_multiplier(data, which: attr->index); |
879 | |
880 | x *= data->volt_max[attr->index]; |
881 | x /= 1000; /* convert from uV to mV */ |
882 | |
883 | return sprintf(buf, fmt: "%d\n" , x); |
884 | } |
885 | |
886 | static ssize_t volt_max_store(struct device *dev, |
887 | struct device_attribute *devattr, |
888 | const char *buf, size_t count) |
889 | { |
890 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
891 | struct adt7462_data *data = dev_get_drvdata(dev); |
892 | struct i2c_client *client = data->client; |
893 | int x = voltage_multiplier(data, which: attr->index); |
894 | long temp; |
895 | |
896 | if (kstrtol(s: buf, base: 10, res: &temp) || !x) |
897 | return -EINVAL; |
898 | |
899 | temp = clamp_val(temp, 0, 255 * x / 1000); |
900 | temp *= 1000; /* convert mV to uV */ |
901 | temp = DIV_ROUND_CLOSEST(temp, x); |
902 | |
903 | mutex_lock(&data->lock); |
904 | data->volt_max[attr->index] = temp; |
905 | i2c_smbus_write_byte_data(client, |
906 | command: ADT7462_REG_VOLT_MAX(data, which: attr->index), |
907 | value: temp); |
908 | mutex_unlock(lock: &data->lock); |
909 | |
910 | return count; |
911 | } |
912 | |
913 | static ssize_t volt_min_show(struct device *dev, |
914 | struct device_attribute *devattr, char *buf) |
915 | { |
916 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
917 | struct adt7462_data *data = adt7462_update_device(dev); |
918 | int x = voltage_multiplier(data, which: attr->index); |
919 | |
920 | x *= data->volt_min[attr->index]; |
921 | x /= 1000; /* convert from uV to mV */ |
922 | |
923 | return sprintf(buf, fmt: "%d\n" , x); |
924 | } |
925 | |
926 | static ssize_t volt_min_store(struct device *dev, |
927 | struct device_attribute *devattr, |
928 | const char *buf, size_t count) |
929 | { |
930 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
931 | struct adt7462_data *data = dev_get_drvdata(dev); |
932 | struct i2c_client *client = data->client; |
933 | int x = voltage_multiplier(data, which: attr->index); |
934 | long temp; |
935 | |
936 | if (kstrtol(s: buf, base: 10, res: &temp) || !x) |
937 | return -EINVAL; |
938 | |
939 | temp = clamp_val(temp, 0, 255 * x / 1000); |
940 | temp *= 1000; /* convert mV to uV */ |
941 | temp = DIV_ROUND_CLOSEST(temp, x); |
942 | |
943 | mutex_lock(&data->lock); |
944 | data->volt_min[attr->index] = temp; |
945 | i2c_smbus_write_byte_data(client, |
946 | command: ADT7462_REG_VOLT_MIN(data, which: attr->index), |
947 | value: temp); |
948 | mutex_unlock(lock: &data->lock); |
949 | |
950 | return count; |
951 | } |
952 | |
953 | static ssize_t voltage_show(struct device *dev, |
954 | struct device_attribute *devattr, char *buf) |
955 | { |
956 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
957 | struct adt7462_data *data = adt7462_update_device(dev); |
958 | int x = voltage_multiplier(data, which: attr->index); |
959 | |
960 | x *= data->voltages[attr->index]; |
961 | x /= 1000; /* convert from uV to mV */ |
962 | |
963 | return sprintf(buf, fmt: "%d\n" , x); |
964 | } |
965 | |
966 | static ssize_t voltage_label_show(struct device *dev, |
967 | struct device_attribute *devattr, char *buf) |
968 | { |
969 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
970 | struct adt7462_data *data = adt7462_update_device(dev); |
971 | |
972 | return sprintf(buf, fmt: "%s\n" , voltage_label(data, which: attr->index)); |
973 | } |
974 | |
975 | static ssize_t alarm_show(struct device *dev, |
976 | struct device_attribute *devattr, char *buf) |
977 | { |
978 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
979 | struct adt7462_data *data = adt7462_update_device(dev); |
980 | int reg = attr->index >> ADT7462_ALARM_REG_SHIFT; |
981 | int mask = attr->index & ADT7462_ALARM_FLAG_MASK; |
982 | |
983 | if (data->alarms[reg] & mask) |
984 | return sprintf(buf, fmt: "1\n" ); |
985 | else |
986 | return sprintf(buf, fmt: "0\n" ); |
987 | } |
988 | |
989 | static int fan_enabled(struct adt7462_data *data, int fan) |
990 | { |
991 | return data->fan_enabled & (1 << fan); |
992 | } |
993 | |
994 | static ssize_t fan_min_show(struct device *dev, |
995 | struct device_attribute *devattr, char *buf) |
996 | { |
997 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
998 | struct adt7462_data *data = adt7462_update_device(dev); |
999 | u16 temp; |
1000 | |
1001 | /* Only the MSB of the min fan period is stored... */ |
1002 | temp = data->fan_min[attr->index]; |
1003 | temp <<= 8; |
1004 | |
1005 | if (!fan_enabled(data, fan: attr->index) || |
1006 | !FAN_DATA_VALID(temp)) |
1007 | return sprintf(buf, fmt: "0\n" ); |
1008 | |
1009 | return sprintf(buf, fmt: "%d\n" , FAN_PERIOD_TO_RPM(temp)); |
1010 | } |
1011 | |
1012 | static ssize_t fan_min_store(struct device *dev, |
1013 | struct device_attribute *devattr, |
1014 | const char *buf, size_t count) |
1015 | { |
1016 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1017 | struct adt7462_data *data = dev_get_drvdata(dev); |
1018 | struct i2c_client *client = data->client; |
1019 | long temp; |
1020 | |
1021 | if (kstrtol(s: buf, base: 10, res: &temp) || !temp || |
1022 | !fan_enabled(data, fan: attr->index)) |
1023 | return -EINVAL; |
1024 | |
1025 | temp = FAN_RPM_TO_PERIOD(temp); |
1026 | temp >>= 8; |
1027 | temp = clamp_val(temp, 1, 255); |
1028 | |
1029 | mutex_lock(&data->lock); |
1030 | data->fan_min[attr->index] = temp; |
1031 | i2c_smbus_write_byte_data(client, ADT7462_REG_FAN_MIN(attr->index), |
1032 | value: temp); |
1033 | mutex_unlock(lock: &data->lock); |
1034 | |
1035 | return count; |
1036 | } |
1037 | |
1038 | static ssize_t fan_show(struct device *dev, struct device_attribute *devattr, |
1039 | char *buf) |
1040 | { |
1041 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1042 | struct adt7462_data *data = adt7462_update_device(dev); |
1043 | |
1044 | if (!fan_enabled(data, fan: attr->index) || |
1045 | !FAN_DATA_VALID(data->fan[attr->index])) |
1046 | return sprintf(buf, fmt: "0\n" ); |
1047 | |
1048 | return sprintf(buf, fmt: "%d\n" , |
1049 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); |
1050 | } |
1051 | |
1052 | static ssize_t force_pwm_max_show(struct device *dev, |
1053 | struct device_attribute *devattr, char *buf) |
1054 | { |
1055 | struct adt7462_data *data = adt7462_update_device(dev); |
1056 | return sprintf(buf, fmt: "%d\n" , (data->cfg2 & ADT7462_FSPD_MASK ? 1 : 0)); |
1057 | } |
1058 | |
1059 | static ssize_t force_pwm_max_store(struct device *dev, |
1060 | struct device_attribute *devattr, |
1061 | const char *buf, size_t count) |
1062 | { |
1063 | struct adt7462_data *data = dev_get_drvdata(dev); |
1064 | struct i2c_client *client = data->client; |
1065 | long temp; |
1066 | u8 reg; |
1067 | |
1068 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1069 | return -EINVAL; |
1070 | |
1071 | mutex_lock(&data->lock); |
1072 | reg = i2c_smbus_read_byte_data(client, ADT7462_REG_CFG2); |
1073 | if (temp) |
1074 | reg |= ADT7462_FSPD_MASK; |
1075 | else |
1076 | reg &= ~ADT7462_FSPD_MASK; |
1077 | data->cfg2 = reg; |
1078 | i2c_smbus_write_byte_data(client, ADT7462_REG_CFG2, value: reg); |
1079 | mutex_unlock(lock: &data->lock); |
1080 | |
1081 | return count; |
1082 | } |
1083 | |
1084 | static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr, |
1085 | char *buf) |
1086 | { |
1087 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1088 | struct adt7462_data *data = adt7462_update_device(dev); |
1089 | return sprintf(buf, fmt: "%d\n" , data->pwm[attr->index]); |
1090 | } |
1091 | |
1092 | static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr, |
1093 | const char *buf, size_t count) |
1094 | { |
1095 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1096 | struct adt7462_data *data = dev_get_drvdata(dev); |
1097 | struct i2c_client *client = data->client; |
1098 | long temp; |
1099 | |
1100 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1101 | return -EINVAL; |
1102 | |
1103 | temp = clamp_val(temp, 0, 255); |
1104 | |
1105 | mutex_lock(&data->lock); |
1106 | data->pwm[attr->index] = temp; |
1107 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM(attr->index), value: temp); |
1108 | mutex_unlock(lock: &data->lock); |
1109 | |
1110 | return count; |
1111 | } |
1112 | |
1113 | static ssize_t pwm_max_show(struct device *dev, |
1114 | struct device_attribute *devattr, char *buf) |
1115 | { |
1116 | struct adt7462_data *data = adt7462_update_device(dev); |
1117 | return sprintf(buf, fmt: "%d\n" , data->pwm_max); |
1118 | } |
1119 | |
1120 | static ssize_t pwm_max_store(struct device *dev, |
1121 | struct device_attribute *devattr, |
1122 | const char *buf, size_t count) |
1123 | { |
1124 | struct adt7462_data *data = dev_get_drvdata(dev); |
1125 | struct i2c_client *client = data->client; |
1126 | long temp; |
1127 | |
1128 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1129 | return -EINVAL; |
1130 | |
1131 | temp = clamp_val(temp, 0, 255); |
1132 | |
1133 | mutex_lock(&data->lock); |
1134 | data->pwm_max = temp; |
1135 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_MAX, value: temp); |
1136 | mutex_unlock(lock: &data->lock); |
1137 | |
1138 | return count; |
1139 | } |
1140 | |
1141 | static ssize_t pwm_min_show(struct device *dev, |
1142 | struct device_attribute *devattr, char *buf) |
1143 | { |
1144 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1145 | struct adt7462_data *data = adt7462_update_device(dev); |
1146 | return sprintf(buf, fmt: "%d\n" , data->pwm_min[attr->index]); |
1147 | } |
1148 | |
1149 | static ssize_t pwm_min_store(struct device *dev, |
1150 | struct device_attribute *devattr, |
1151 | const char *buf, size_t count) |
1152 | { |
1153 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1154 | struct adt7462_data *data = dev_get_drvdata(dev); |
1155 | struct i2c_client *client = data->client; |
1156 | long temp; |
1157 | |
1158 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1159 | return -EINVAL; |
1160 | |
1161 | temp = clamp_val(temp, 0, 255); |
1162 | |
1163 | mutex_lock(&data->lock); |
1164 | data->pwm_min[attr->index] = temp; |
1165 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_MIN(attr->index), |
1166 | value: temp); |
1167 | mutex_unlock(lock: &data->lock); |
1168 | |
1169 | return count; |
1170 | } |
1171 | |
1172 | static ssize_t pwm_hyst_show(struct device *dev, |
1173 | struct device_attribute *devattr, char *buf) |
1174 | { |
1175 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1176 | struct adt7462_data *data = adt7462_update_device(dev); |
1177 | return sprintf(buf, fmt: "%d\n" , 1000 * |
1178 | (data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK)); |
1179 | } |
1180 | |
1181 | static ssize_t pwm_hyst_store(struct device *dev, |
1182 | struct device_attribute *devattr, |
1183 | const char *buf, size_t count) |
1184 | { |
1185 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1186 | struct adt7462_data *data = dev_get_drvdata(dev); |
1187 | struct i2c_client *client = data->client; |
1188 | long temp; |
1189 | |
1190 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1191 | return -EINVAL; |
1192 | |
1193 | temp = clamp_val(temp, 0, 15000); |
1194 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
1195 | |
1196 | /* package things up */ |
1197 | temp &= ADT7462_PWM_HYST_MASK; |
1198 | temp |= data->pwm_trange[attr->index] & ADT7462_PWM_RANGE_MASK; |
1199 | |
1200 | mutex_lock(&data->lock); |
1201 | data->pwm_trange[attr->index] = temp; |
1202 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TRANGE(attr->index), |
1203 | value: temp); |
1204 | mutex_unlock(lock: &data->lock); |
1205 | |
1206 | return count; |
1207 | } |
1208 | |
1209 | static ssize_t pwm_tmax_show(struct device *dev, |
1210 | struct device_attribute *devattr, char *buf) |
1211 | { |
1212 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1213 | struct adt7462_data *data = adt7462_update_device(dev); |
1214 | |
1215 | /* tmax = tmin + trange */ |
1216 | int trange = trange_values[data->pwm_trange[attr->index] >> |
1217 | ADT7462_PWM_RANGE_SHIFT]; |
1218 | int tmin = (data->pwm_tmin[attr->index] - 64) * 1000; |
1219 | |
1220 | return sprintf(buf, fmt: "%d\n" , tmin + trange); |
1221 | } |
1222 | |
1223 | static ssize_t pwm_tmax_store(struct device *dev, |
1224 | struct device_attribute *devattr, |
1225 | const char *buf, size_t count) |
1226 | { |
1227 | int temp; |
1228 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1229 | struct adt7462_data *data = dev_get_drvdata(dev); |
1230 | struct i2c_client *client = data->client; |
1231 | int tmin, trange_value; |
1232 | long trange; |
1233 | |
1234 | if (kstrtol(s: buf, base: 10, res: &trange)) |
1235 | return -EINVAL; |
1236 | |
1237 | /* trange = tmax - tmin */ |
1238 | tmin = (data->pwm_tmin[attr->index] - 64) * 1000; |
1239 | trange_value = find_trange_value(trange: trange - tmin); |
1240 | if (trange_value < 0) |
1241 | return trange_value; |
1242 | |
1243 | temp = trange_value << ADT7462_PWM_RANGE_SHIFT; |
1244 | temp |= data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK; |
1245 | |
1246 | mutex_lock(&data->lock); |
1247 | data->pwm_trange[attr->index] = temp; |
1248 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TRANGE(attr->index), |
1249 | value: temp); |
1250 | mutex_unlock(lock: &data->lock); |
1251 | |
1252 | return count; |
1253 | } |
1254 | |
1255 | static ssize_t pwm_tmin_show(struct device *dev, |
1256 | struct device_attribute *devattr, char *buf) |
1257 | { |
1258 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1259 | struct adt7462_data *data = adt7462_update_device(dev); |
1260 | return sprintf(buf, fmt: "%d\n" , 1000 * (data->pwm_tmin[attr->index] - 64)); |
1261 | } |
1262 | |
1263 | static ssize_t pwm_tmin_store(struct device *dev, |
1264 | struct device_attribute *devattr, |
1265 | const char *buf, size_t count) |
1266 | { |
1267 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1268 | struct adt7462_data *data = dev_get_drvdata(dev); |
1269 | struct i2c_client *client = data->client; |
1270 | long temp; |
1271 | |
1272 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1273 | return -EINVAL; |
1274 | |
1275 | temp = clamp_val(temp, -64000, 191000); |
1276 | temp = DIV_ROUND_CLOSEST(temp, 1000) + 64; |
1277 | |
1278 | mutex_lock(&data->lock); |
1279 | data->pwm_tmin[attr->index] = temp; |
1280 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TMIN(attr->index), |
1281 | value: temp); |
1282 | mutex_unlock(lock: &data->lock); |
1283 | |
1284 | return count; |
1285 | } |
1286 | |
1287 | static ssize_t pwm_auto_show(struct device *dev, |
1288 | struct device_attribute *devattr, char *buf) |
1289 | { |
1290 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1291 | struct adt7462_data *data = adt7462_update_device(dev); |
1292 | int cfg = data->pwm_cfg[attr->index] >> ADT7462_PWM_CHANNEL_SHIFT; |
1293 | |
1294 | switch (cfg) { |
1295 | case 4: /* off */ |
1296 | return sprintf(buf, fmt: "0\n" ); |
1297 | case 7: /* manual */ |
1298 | return sprintf(buf, fmt: "1\n" ); |
1299 | default: /* automatic */ |
1300 | return sprintf(buf, fmt: "2\n" ); |
1301 | } |
1302 | } |
1303 | |
1304 | static void set_pwm_channel(struct i2c_client *client, |
1305 | struct adt7462_data *data, |
1306 | int which, |
1307 | int value) |
1308 | { |
1309 | int temp = data->pwm_cfg[which] & ~ADT7462_PWM_CHANNEL_MASK; |
1310 | temp |= value << ADT7462_PWM_CHANNEL_SHIFT; |
1311 | |
1312 | mutex_lock(&data->lock); |
1313 | data->pwm_cfg[which] = temp; |
1314 | i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_CFG(which), value: temp); |
1315 | mutex_unlock(lock: &data->lock); |
1316 | } |
1317 | |
1318 | static ssize_t pwm_auto_store(struct device *dev, |
1319 | struct device_attribute *devattr, |
1320 | const char *buf, size_t count) |
1321 | { |
1322 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1323 | struct adt7462_data *data = dev_get_drvdata(dev); |
1324 | struct i2c_client *client = data->client; |
1325 | long temp; |
1326 | |
1327 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1328 | return -EINVAL; |
1329 | |
1330 | switch (temp) { |
1331 | case 0: /* off */ |
1332 | set_pwm_channel(client, data, which: attr->index, value: 4); |
1333 | return count; |
1334 | case 1: /* manual */ |
1335 | set_pwm_channel(client, data, which: attr->index, value: 7); |
1336 | return count; |
1337 | default: |
1338 | return -EINVAL; |
1339 | } |
1340 | } |
1341 | |
1342 | static ssize_t pwm_auto_temp_show(struct device *dev, |
1343 | struct device_attribute *devattr, char *buf) |
1344 | { |
1345 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1346 | struct adt7462_data *data = adt7462_update_device(dev); |
1347 | int channel = data->pwm_cfg[attr->index] >> ADT7462_PWM_CHANNEL_SHIFT; |
1348 | |
1349 | switch (channel) { |
1350 | case 0: /* temp[1234] only */ |
1351 | case 1: |
1352 | case 2: |
1353 | case 3: |
1354 | return sprintf(buf, fmt: "%d\n" , (1 << channel)); |
1355 | case 5: /* temp1 & temp4 */ |
1356 | return sprintf(buf, fmt: "9\n" ); |
1357 | case 6: |
1358 | return sprintf(buf, fmt: "15\n" ); |
1359 | default: |
1360 | return sprintf(buf, fmt: "0\n" ); |
1361 | } |
1362 | } |
1363 | |
1364 | static int cvt_auto_temp(int input) |
1365 | { |
1366 | if (input == 0xF) |
1367 | return 6; |
1368 | if (input == 0x9) |
1369 | return 5; |
1370 | if (input < 1 || !is_power_of_2(n: input)) |
1371 | return -EINVAL; |
1372 | return ilog2(input); |
1373 | } |
1374 | |
1375 | static ssize_t pwm_auto_temp_store(struct device *dev, |
1376 | struct device_attribute *devattr, |
1377 | const char *buf, size_t count) |
1378 | { |
1379 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
1380 | struct adt7462_data *data = dev_get_drvdata(dev); |
1381 | struct i2c_client *client = data->client; |
1382 | long temp; |
1383 | |
1384 | if (kstrtol(s: buf, base: 10, res: &temp)) |
1385 | return -EINVAL; |
1386 | |
1387 | temp = cvt_auto_temp(input: temp); |
1388 | if (temp < 0) |
1389 | return temp; |
1390 | |
1391 | set_pwm_channel(client, data, which: attr->index, value: temp); |
1392 | |
1393 | return count; |
1394 | } |
1395 | |
1396 | static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); |
1397 | static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); |
1398 | static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); |
1399 | static SENSOR_DEVICE_ATTR_RW(temp4_max, temp_max, 3); |
1400 | |
1401 | static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); |
1402 | static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); |
1403 | static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); |
1404 | static SENSOR_DEVICE_ATTR_RW(temp4_min, temp_min, 3); |
1405 | |
1406 | static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
1407 | static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
1408 | static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
1409 | static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); |
1410 | |
1411 | static SENSOR_DEVICE_ATTR_RO(temp1_label, temp_label, 0); |
1412 | static SENSOR_DEVICE_ATTR_RO(temp2_label, temp_label, 1); |
1413 | static SENSOR_DEVICE_ATTR_RO(temp3_label, temp_label, 2); |
1414 | static SENSOR_DEVICE_ATTR_RO(temp4_label, temp_label, 3); |
1415 | |
1416 | static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, |
1417 | ADT7462_ALARM1 | ADT7462_LT_ALARM); |
1418 | static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, |
1419 | ADT7462_ALARM1 | ADT7462_R1T_ALARM); |
1420 | static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, |
1421 | ADT7462_ALARM1 | ADT7462_R2T_ALARM); |
1422 | static SENSOR_DEVICE_ATTR_RO(temp4_alarm, alarm, |
1423 | ADT7462_ALARM1 | ADT7462_R3T_ALARM); |
1424 | |
1425 | static SENSOR_DEVICE_ATTR_RW(in1_max, volt_max, 0); |
1426 | static SENSOR_DEVICE_ATTR_RW(in2_max, volt_max, 1); |
1427 | static SENSOR_DEVICE_ATTR_RW(in3_max, volt_max, 2); |
1428 | static SENSOR_DEVICE_ATTR_RW(in4_max, volt_max, 3); |
1429 | static SENSOR_DEVICE_ATTR_RW(in5_max, volt_max, 4); |
1430 | static SENSOR_DEVICE_ATTR_RW(in6_max, volt_max, 5); |
1431 | static SENSOR_DEVICE_ATTR_RW(in7_max, volt_max, 6); |
1432 | static SENSOR_DEVICE_ATTR_RW(in8_max, volt_max, 7); |
1433 | static SENSOR_DEVICE_ATTR_RW(in9_max, volt_max, 8); |
1434 | static SENSOR_DEVICE_ATTR_RW(in10_max, volt_max, 9); |
1435 | static SENSOR_DEVICE_ATTR_RW(in11_max, volt_max, 10); |
1436 | static SENSOR_DEVICE_ATTR_RW(in12_max, volt_max, 11); |
1437 | static SENSOR_DEVICE_ATTR_RW(in13_max, volt_max, 12); |
1438 | |
1439 | static SENSOR_DEVICE_ATTR_RW(in1_min, volt_min, 0); |
1440 | static SENSOR_DEVICE_ATTR_RW(in2_min, volt_min, 1); |
1441 | static SENSOR_DEVICE_ATTR_RW(in3_min, volt_min, 2); |
1442 | static SENSOR_DEVICE_ATTR_RW(in4_min, volt_min, 3); |
1443 | static SENSOR_DEVICE_ATTR_RW(in5_min, volt_min, 4); |
1444 | static SENSOR_DEVICE_ATTR_RW(in6_min, volt_min, 5); |
1445 | static SENSOR_DEVICE_ATTR_RW(in7_min, volt_min, 6); |
1446 | static SENSOR_DEVICE_ATTR_RW(in8_min, volt_min, 7); |
1447 | static SENSOR_DEVICE_ATTR_RW(in9_min, volt_min, 8); |
1448 | static SENSOR_DEVICE_ATTR_RW(in10_min, volt_min, 9); |
1449 | static SENSOR_DEVICE_ATTR_RW(in11_min, volt_min, 10); |
1450 | static SENSOR_DEVICE_ATTR_RW(in12_min, volt_min, 11); |
1451 | static SENSOR_DEVICE_ATTR_RW(in13_min, volt_min, 12); |
1452 | |
1453 | static SENSOR_DEVICE_ATTR_RO(in1_input, voltage, 0); |
1454 | static SENSOR_DEVICE_ATTR_RO(in2_input, voltage, 1); |
1455 | static SENSOR_DEVICE_ATTR_RO(in3_input, voltage, 2); |
1456 | static SENSOR_DEVICE_ATTR_RO(in4_input, voltage, 3); |
1457 | static SENSOR_DEVICE_ATTR_RO(in5_input, voltage, 4); |
1458 | static SENSOR_DEVICE_ATTR_RO(in6_input, voltage, 5); |
1459 | static SENSOR_DEVICE_ATTR_RO(in7_input, voltage, 6); |
1460 | static SENSOR_DEVICE_ATTR_RO(in8_input, voltage, 7); |
1461 | static SENSOR_DEVICE_ATTR_RO(in9_input, voltage, 8); |
1462 | static SENSOR_DEVICE_ATTR_RO(in10_input, voltage, 9); |
1463 | static SENSOR_DEVICE_ATTR_RO(in11_input, voltage, 10); |
1464 | static SENSOR_DEVICE_ATTR_RO(in12_input, voltage, 11); |
1465 | static SENSOR_DEVICE_ATTR_RO(in13_input, voltage, 12); |
1466 | |
1467 | static SENSOR_DEVICE_ATTR_RO(in1_label, voltage_label, 0); |
1468 | static SENSOR_DEVICE_ATTR_RO(in2_label, voltage_label, 1); |
1469 | static SENSOR_DEVICE_ATTR_RO(in3_label, voltage_label, 2); |
1470 | static SENSOR_DEVICE_ATTR_RO(in4_label, voltage_label, 3); |
1471 | static SENSOR_DEVICE_ATTR_RO(in5_label, voltage_label, 4); |
1472 | static SENSOR_DEVICE_ATTR_RO(in6_label, voltage_label, 5); |
1473 | static SENSOR_DEVICE_ATTR_RO(in7_label, voltage_label, 6); |
1474 | static SENSOR_DEVICE_ATTR_RO(in8_label, voltage_label, 7); |
1475 | static SENSOR_DEVICE_ATTR_RO(in9_label, voltage_label, 8); |
1476 | static SENSOR_DEVICE_ATTR_RO(in10_label, voltage_label, 9); |
1477 | static SENSOR_DEVICE_ATTR_RO(in11_label, voltage_label, 10); |
1478 | static SENSOR_DEVICE_ATTR_RO(in12_label, voltage_label, 11); |
1479 | static SENSOR_DEVICE_ATTR_RO(in13_label, voltage_label, 12); |
1480 | |
1481 | static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, |
1482 | ADT7462_ALARM2 | ADT7462_V0_ALARM); |
1483 | static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, |
1484 | ADT7462_ALARM2 | ADT7462_V7_ALARM); |
1485 | static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, |
1486 | ADT7462_ALARM2 | ADT7462_V2_ALARM); |
1487 | static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, |
1488 | ADT7462_ALARM2 | ADT7462_V6_ALARM); |
1489 | static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, |
1490 | ADT7462_ALARM2 | ADT7462_V5_ALARM); |
1491 | static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, |
1492 | ADT7462_ALARM2 | ADT7462_V4_ALARM); |
1493 | static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, |
1494 | ADT7462_ALARM2 | ADT7462_V3_ALARM); |
1495 | static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, |
1496 | ADT7462_ALARM2 | ADT7462_V1_ALARM); |
1497 | static SENSOR_DEVICE_ATTR_RO(in9_alarm, alarm, |
1498 | ADT7462_ALARM3 | ADT7462_V10_ALARM); |
1499 | static SENSOR_DEVICE_ATTR_RO(in10_alarm, alarm, |
1500 | ADT7462_ALARM3 | ADT7462_V9_ALARM); |
1501 | static SENSOR_DEVICE_ATTR_RO(in11_alarm, alarm, |
1502 | ADT7462_ALARM3 | ADT7462_V8_ALARM); |
1503 | static SENSOR_DEVICE_ATTR_RO(in12_alarm, alarm, |
1504 | ADT7462_ALARM3 | ADT7462_V11_ALARM); |
1505 | static SENSOR_DEVICE_ATTR_RO(in13_alarm, alarm, |
1506 | ADT7462_ALARM3 | ADT7462_V12_ALARM); |
1507 | |
1508 | static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); |
1509 | static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); |
1510 | static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); |
1511 | static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3); |
1512 | static SENSOR_DEVICE_ATTR_RW(fan5_min, fan_min, 4); |
1513 | static SENSOR_DEVICE_ATTR_RW(fan6_min, fan_min, 5); |
1514 | static SENSOR_DEVICE_ATTR_RW(fan7_min, fan_min, 6); |
1515 | static SENSOR_DEVICE_ATTR_RW(fan8_min, fan_min, 7); |
1516 | |
1517 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
1518 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); |
1519 | static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); |
1520 | static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); |
1521 | static SENSOR_DEVICE_ATTR_RO(fan5_input, fan, 4); |
1522 | static SENSOR_DEVICE_ATTR_RO(fan6_input, fan, 5); |
1523 | static SENSOR_DEVICE_ATTR_RO(fan7_input, fan, 6); |
1524 | static SENSOR_DEVICE_ATTR_RO(fan8_input, fan, 7); |
1525 | |
1526 | static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, |
1527 | ADT7462_ALARM4 | ADT7462_F0_ALARM); |
1528 | static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, |
1529 | ADT7462_ALARM4 | ADT7462_F1_ALARM); |
1530 | static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, |
1531 | ADT7462_ALARM4 | ADT7462_F2_ALARM); |
1532 | static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, |
1533 | ADT7462_ALARM4 | ADT7462_F3_ALARM); |
1534 | static SENSOR_DEVICE_ATTR_RO(fan5_alarm, alarm, |
1535 | ADT7462_ALARM4 | ADT7462_F4_ALARM); |
1536 | static SENSOR_DEVICE_ATTR_RO(fan6_alarm, alarm, |
1537 | ADT7462_ALARM4 | ADT7462_F5_ALARM); |
1538 | static SENSOR_DEVICE_ATTR_RO(fan7_alarm, alarm, |
1539 | ADT7462_ALARM4 | ADT7462_F6_ALARM); |
1540 | static SENSOR_DEVICE_ATTR_RO(fan8_alarm, alarm, |
1541 | ADT7462_ALARM4 | ADT7462_F7_ALARM); |
1542 | |
1543 | static SENSOR_DEVICE_ATTR_RW(force_pwm_max, force_pwm_max, 0); |
1544 | |
1545 | static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); |
1546 | static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); |
1547 | static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2); |
1548 | static SENSOR_DEVICE_ATTR_RW(pwm4, pwm, 3); |
1549 | |
1550 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point1_pwm, pwm_min, 0); |
1551 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point1_pwm, pwm_min, 1); |
1552 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point1_pwm, pwm_min, 2); |
1553 | static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point1_pwm, pwm_min, 3); |
1554 | |
1555 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point2_pwm, pwm_max, 0); |
1556 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point2_pwm, pwm_max, 1); |
1557 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point2_pwm, pwm_max, 2); |
1558 | static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point2_pwm, pwm_max, 3); |
1559 | |
1560 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_hyst, pwm_hyst, 0); |
1561 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_hyst, pwm_hyst, 1); |
1562 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_hyst, pwm_hyst, 2); |
1563 | static SENSOR_DEVICE_ATTR_RW(temp4_auto_point1_hyst, pwm_hyst, 3); |
1564 | |
1565 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_point2_hyst, pwm_hyst, 0); |
1566 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_point2_hyst, pwm_hyst, 1); |
1567 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_point2_hyst, pwm_hyst, 2); |
1568 | static SENSOR_DEVICE_ATTR_RW(temp4_auto_point2_hyst, pwm_hyst, 3); |
1569 | |
1570 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_temp, pwm_tmin, 0); |
1571 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_temp, pwm_tmin, 1); |
1572 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_temp, pwm_tmin, 2); |
1573 | static SENSOR_DEVICE_ATTR_RW(temp4_auto_point1_temp, pwm_tmin, 3); |
1574 | |
1575 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_point2_temp, pwm_tmax, 0); |
1576 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_point2_temp, pwm_tmax, 1); |
1577 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_point2_temp, pwm_tmax, 2); |
1578 | static SENSOR_DEVICE_ATTR_RW(temp4_auto_point2_temp, pwm_tmax, 3); |
1579 | |
1580 | static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_auto, 0); |
1581 | static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_auto, 1); |
1582 | static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_auto, 2); |
1583 | static SENSOR_DEVICE_ATTR_RW(pwm4_enable, pwm_auto, 3); |
1584 | |
1585 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels_temp, pwm_auto_temp, 0); |
1586 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels_temp, pwm_auto_temp, 1); |
1587 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_channels_temp, pwm_auto_temp, 2); |
1588 | static SENSOR_DEVICE_ATTR_RW(pwm4_auto_channels_temp, pwm_auto_temp, 3); |
1589 | |
1590 | static struct attribute *adt7462_attrs[] = { |
1591 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1592 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
1593 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
1594 | &sensor_dev_attr_temp4_max.dev_attr.attr, |
1595 | |
1596 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
1597 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
1598 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
1599 | &sensor_dev_attr_temp4_min.dev_attr.attr, |
1600 | |
1601 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
1602 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
1603 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
1604 | &sensor_dev_attr_temp4_input.dev_attr.attr, |
1605 | |
1606 | &sensor_dev_attr_temp1_label.dev_attr.attr, |
1607 | &sensor_dev_attr_temp2_label.dev_attr.attr, |
1608 | &sensor_dev_attr_temp3_label.dev_attr.attr, |
1609 | &sensor_dev_attr_temp4_label.dev_attr.attr, |
1610 | |
1611 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1612 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
1613 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
1614 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, |
1615 | |
1616 | &sensor_dev_attr_in1_max.dev_attr.attr, |
1617 | &sensor_dev_attr_in2_max.dev_attr.attr, |
1618 | &sensor_dev_attr_in3_max.dev_attr.attr, |
1619 | &sensor_dev_attr_in4_max.dev_attr.attr, |
1620 | &sensor_dev_attr_in5_max.dev_attr.attr, |
1621 | &sensor_dev_attr_in6_max.dev_attr.attr, |
1622 | &sensor_dev_attr_in7_max.dev_attr.attr, |
1623 | &sensor_dev_attr_in8_max.dev_attr.attr, |
1624 | &sensor_dev_attr_in9_max.dev_attr.attr, |
1625 | &sensor_dev_attr_in10_max.dev_attr.attr, |
1626 | &sensor_dev_attr_in11_max.dev_attr.attr, |
1627 | &sensor_dev_attr_in12_max.dev_attr.attr, |
1628 | &sensor_dev_attr_in13_max.dev_attr.attr, |
1629 | |
1630 | &sensor_dev_attr_in1_min.dev_attr.attr, |
1631 | &sensor_dev_attr_in2_min.dev_attr.attr, |
1632 | &sensor_dev_attr_in3_min.dev_attr.attr, |
1633 | &sensor_dev_attr_in4_min.dev_attr.attr, |
1634 | &sensor_dev_attr_in5_min.dev_attr.attr, |
1635 | &sensor_dev_attr_in6_min.dev_attr.attr, |
1636 | &sensor_dev_attr_in7_min.dev_attr.attr, |
1637 | &sensor_dev_attr_in8_min.dev_attr.attr, |
1638 | &sensor_dev_attr_in9_min.dev_attr.attr, |
1639 | &sensor_dev_attr_in10_min.dev_attr.attr, |
1640 | &sensor_dev_attr_in11_min.dev_attr.attr, |
1641 | &sensor_dev_attr_in12_min.dev_attr.attr, |
1642 | &sensor_dev_attr_in13_min.dev_attr.attr, |
1643 | |
1644 | &sensor_dev_attr_in1_input.dev_attr.attr, |
1645 | &sensor_dev_attr_in2_input.dev_attr.attr, |
1646 | &sensor_dev_attr_in3_input.dev_attr.attr, |
1647 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1648 | &sensor_dev_attr_in5_input.dev_attr.attr, |
1649 | &sensor_dev_attr_in6_input.dev_attr.attr, |
1650 | &sensor_dev_attr_in7_input.dev_attr.attr, |
1651 | &sensor_dev_attr_in8_input.dev_attr.attr, |
1652 | &sensor_dev_attr_in9_input.dev_attr.attr, |
1653 | &sensor_dev_attr_in10_input.dev_attr.attr, |
1654 | &sensor_dev_attr_in11_input.dev_attr.attr, |
1655 | &sensor_dev_attr_in12_input.dev_attr.attr, |
1656 | &sensor_dev_attr_in13_input.dev_attr.attr, |
1657 | |
1658 | &sensor_dev_attr_in1_label.dev_attr.attr, |
1659 | &sensor_dev_attr_in2_label.dev_attr.attr, |
1660 | &sensor_dev_attr_in3_label.dev_attr.attr, |
1661 | &sensor_dev_attr_in4_label.dev_attr.attr, |
1662 | &sensor_dev_attr_in5_label.dev_attr.attr, |
1663 | &sensor_dev_attr_in6_label.dev_attr.attr, |
1664 | &sensor_dev_attr_in7_label.dev_attr.attr, |
1665 | &sensor_dev_attr_in8_label.dev_attr.attr, |
1666 | &sensor_dev_attr_in9_label.dev_attr.attr, |
1667 | &sensor_dev_attr_in10_label.dev_attr.attr, |
1668 | &sensor_dev_attr_in11_label.dev_attr.attr, |
1669 | &sensor_dev_attr_in12_label.dev_attr.attr, |
1670 | &sensor_dev_attr_in13_label.dev_attr.attr, |
1671 | |
1672 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1673 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1674 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1675 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
1676 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1677 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
1678 | &sensor_dev_attr_in7_alarm.dev_attr.attr, |
1679 | &sensor_dev_attr_in8_alarm.dev_attr.attr, |
1680 | &sensor_dev_attr_in9_alarm.dev_attr.attr, |
1681 | &sensor_dev_attr_in10_alarm.dev_attr.attr, |
1682 | &sensor_dev_attr_in11_alarm.dev_attr.attr, |
1683 | &sensor_dev_attr_in12_alarm.dev_attr.attr, |
1684 | &sensor_dev_attr_in13_alarm.dev_attr.attr, |
1685 | |
1686 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
1687 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
1688 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
1689 | &sensor_dev_attr_fan4_min.dev_attr.attr, |
1690 | &sensor_dev_attr_fan5_min.dev_attr.attr, |
1691 | &sensor_dev_attr_fan6_min.dev_attr.attr, |
1692 | &sensor_dev_attr_fan7_min.dev_attr.attr, |
1693 | &sensor_dev_attr_fan8_min.dev_attr.attr, |
1694 | |
1695 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1696 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1697 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1698 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
1699 | &sensor_dev_attr_fan5_input.dev_attr.attr, |
1700 | &sensor_dev_attr_fan6_input.dev_attr.attr, |
1701 | &sensor_dev_attr_fan7_input.dev_attr.attr, |
1702 | &sensor_dev_attr_fan8_input.dev_attr.attr, |
1703 | |
1704 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1705 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1706 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1707 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1708 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
1709 | &sensor_dev_attr_fan6_alarm.dev_attr.attr, |
1710 | &sensor_dev_attr_fan7_alarm.dev_attr.attr, |
1711 | &sensor_dev_attr_fan8_alarm.dev_attr.attr, |
1712 | |
1713 | &sensor_dev_attr_force_pwm_max.dev_attr.attr, |
1714 | &sensor_dev_attr_pwm1.dev_attr.attr, |
1715 | &sensor_dev_attr_pwm2.dev_attr.attr, |
1716 | &sensor_dev_attr_pwm3.dev_attr.attr, |
1717 | &sensor_dev_attr_pwm4.dev_attr.attr, |
1718 | |
1719 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
1720 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
1721 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
1722 | &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, |
1723 | |
1724 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, |
1725 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, |
1726 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, |
1727 | &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, |
1728 | |
1729 | &sensor_dev_attr_temp1_auto_point1_hyst.dev_attr.attr, |
1730 | &sensor_dev_attr_temp2_auto_point1_hyst.dev_attr.attr, |
1731 | &sensor_dev_attr_temp3_auto_point1_hyst.dev_attr.attr, |
1732 | &sensor_dev_attr_temp4_auto_point1_hyst.dev_attr.attr, |
1733 | |
1734 | &sensor_dev_attr_temp1_auto_point2_hyst.dev_attr.attr, |
1735 | &sensor_dev_attr_temp2_auto_point2_hyst.dev_attr.attr, |
1736 | &sensor_dev_attr_temp3_auto_point2_hyst.dev_attr.attr, |
1737 | &sensor_dev_attr_temp4_auto_point2_hyst.dev_attr.attr, |
1738 | |
1739 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, |
1740 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, |
1741 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, |
1742 | &sensor_dev_attr_temp4_auto_point1_temp.dev_attr.attr, |
1743 | |
1744 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, |
1745 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, |
1746 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, |
1747 | &sensor_dev_attr_temp4_auto_point2_temp.dev_attr.attr, |
1748 | |
1749 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
1750 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
1751 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
1752 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, |
1753 | |
1754 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
1755 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
1756 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
1757 | &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, |
1758 | NULL |
1759 | }; |
1760 | |
1761 | ATTRIBUTE_GROUPS(adt7462); |
1762 | |
1763 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1764 | static int adt7462_detect(struct i2c_client *client, |
1765 | struct i2c_board_info *info) |
1766 | { |
1767 | struct i2c_adapter *adapter = client->adapter; |
1768 | int vendor, device, revision; |
1769 | |
1770 | if (!i2c_check_functionality(adap: adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
1771 | return -ENODEV; |
1772 | |
1773 | vendor = i2c_smbus_read_byte_data(client, ADT7462_REG_VENDOR); |
1774 | if (vendor != ADT7462_VENDOR) |
1775 | return -ENODEV; |
1776 | |
1777 | device = i2c_smbus_read_byte_data(client, ADT7462_REG_DEVICE); |
1778 | if (device != ADT7462_DEVICE) |
1779 | return -ENODEV; |
1780 | |
1781 | revision = i2c_smbus_read_byte_data(client, ADT7462_REG_REVISION); |
1782 | if (revision != ADT7462_REVISION) |
1783 | return -ENODEV; |
1784 | |
1785 | strscpy(info->type, "adt7462" , I2C_NAME_SIZE); |
1786 | |
1787 | return 0; |
1788 | } |
1789 | |
1790 | static int adt7462_probe(struct i2c_client *client) |
1791 | { |
1792 | struct device *dev = &client->dev; |
1793 | struct adt7462_data *data; |
1794 | struct device *hwmon_dev; |
1795 | |
1796 | data = devm_kzalloc(dev, size: sizeof(struct adt7462_data), GFP_KERNEL); |
1797 | if (!data) |
1798 | return -ENOMEM; |
1799 | |
1800 | data->client = client; |
1801 | mutex_init(&data->lock); |
1802 | |
1803 | dev_info(&client->dev, "%s chip found\n" , client->name); |
1804 | |
1805 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, name: client->name, |
1806 | drvdata: data, |
1807 | groups: adt7462_groups); |
1808 | return PTR_ERR_OR_ZERO(ptr: hwmon_dev); |
1809 | } |
1810 | |
1811 | static const struct i2c_device_id adt7462_id[] = { |
1812 | { "adt7462" , 0 }, |
1813 | { } |
1814 | }; |
1815 | MODULE_DEVICE_TABLE(i2c, adt7462_id); |
1816 | |
1817 | static struct i2c_driver adt7462_driver = { |
1818 | .class = I2C_CLASS_HWMON, |
1819 | .driver = { |
1820 | .name = "adt7462" , |
1821 | }, |
1822 | .probe = adt7462_probe, |
1823 | .id_table = adt7462_id, |
1824 | .detect = adt7462_detect, |
1825 | .address_list = normal_i2c, |
1826 | }; |
1827 | |
1828 | module_i2c_driver(adt7462_driver); |
1829 | |
1830 | MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>" ); |
1831 | MODULE_DESCRIPTION("ADT7462 driver" ); |
1832 | MODULE_LICENSE("GPL" ); |
1833 | |