Commit | Line | Data |
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3434f378 GR |
1 | /* |
2 | * nct7802 - Driver for Nuvoton NCT7802Y | |
3 | * | |
4 | * Copyright (C) 2014 Guenter Roeck <linux@roeck-us.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | */ | |
16 | ||
17 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
18 | ||
19 | #include <linux/err.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/hwmon.h> | |
23 | #include <linux/hwmon-sysfs.h> | |
24 | #include <linux/jiffies.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/mutex.h> | |
27 | #include <linux/regmap.h> | |
28 | #include <linux/slab.h> | |
29 | ||
30 | #define DRVNAME "nct7802" | |
31 | ||
32 | static const u8 REG_VOLTAGE[5] = { 0x09, 0x0a, 0x0c, 0x0d, 0x0e }; | |
33 | ||
34 | static const u8 REG_VOLTAGE_LIMIT_LSB[2][5] = { | |
35 | { 0x40, 0x00, 0x42, 0x44, 0x46 }, | |
36 | { 0x3f, 0x00, 0x41, 0x43, 0x45 }, | |
37 | }; | |
38 | ||
39 | static const u8 REG_VOLTAGE_LIMIT_MSB[5] = { 0x48, 0x00, 0x47, 0x47, 0x48 }; | |
40 | ||
41 | static const u8 REG_VOLTAGE_LIMIT_MSB_SHIFT[2][5] = { | |
42 | { 0, 0, 4, 0, 4 }, | |
43 | { 2, 0, 6, 2, 6 }, | |
44 | }; | |
45 | ||
46 | #define REG_BANK 0x00 | |
47 | #define REG_TEMP_LSB 0x05 | |
48 | #define REG_TEMP_PECI_LSB 0x08 | |
49 | #define REG_VOLTAGE_LOW 0x0f | |
50 | #define REG_FANCOUNT_LOW 0x13 | |
51 | #define REG_START 0x21 | |
fcdc5739 | 52 | #define REG_MODE 0x22 /* 7.2.32 Mode Selection Register */ |
3434f378 GR |
53 | #define REG_PECI_ENABLE 0x23 |
54 | #define REG_FAN_ENABLE 0x24 | |
55 | #define REG_VMON_ENABLE 0x25 | |
1c6e8f6b | 56 | #define REG_PWM(x) (0x60 + (x)) |
5102f022 CS |
57 | #define REG_SMARTFAN_EN(x) (0x64 + (x) / 2) |
58 | #define SMARTFAN_EN_SHIFT(x) ((x) % 2 * 4) | |
3434f378 GR |
59 | #define REG_VENDOR_ID 0xfd |
60 | #define REG_CHIP_ID 0xfe | |
61 | #define REG_VERSION_ID 0xff | |
62 | ||
63 | /* | |
64 | * Data structures and manipulation thereof | |
65 | */ | |
66 | ||
67 | struct nct7802_data { | |
68 | struct regmap *regmap; | |
69 | struct mutex access_lock; /* for multi-byte read and write operations */ | |
70 | }; | |
71 | ||
fcdc5739 CS |
72 | static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr, |
73 | char *buf) | |
74 | { | |
75 | struct nct7802_data *data = dev_get_drvdata(dev); | |
76 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
77 | unsigned int mode; | |
78 | int ret; | |
79 | ||
80 | ret = regmap_read(data->regmap, REG_MODE, &mode); | |
81 | if (ret < 0) | |
82 | return ret; | |
83 | ||
84 | return sprintf(buf, "%u\n", (mode >> (2 * sattr->index) & 3) + 2); | |
85 | } | |
86 | ||
87 | static ssize_t store_temp_type(struct device *dev, | |
88 | struct device_attribute *attr, | |
89 | const char *buf, size_t count) | |
90 | { | |
91 | struct nct7802_data *data = dev_get_drvdata(dev); | |
92 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
93 | unsigned int type; | |
94 | int err; | |
95 | ||
96 | err = kstrtouint(buf, 0, &type); | |
97 | if (err < 0) | |
98 | return err; | |
99 | if (sattr->index == 2 && type != 4) /* RD3 */ | |
100 | return -EINVAL; | |
101 | if (type < 3 || type > 4) | |
102 | return -EINVAL; | |
103 | err = regmap_update_bits(data->regmap, REG_MODE, | |
104 | 3 << 2 * sattr->index, (type - 2) << 2 * sattr->index); | |
105 | return err ? : count; | |
106 | } | |
107 | ||
876420e0 CS |
108 | static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr, |
109 | char *buf) | |
110 | { | |
111 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
112 | struct nct7802_data *data = dev_get_drvdata(dev); | |
113 | unsigned int regval; | |
114 | int ret; | |
115 | ||
116 | if (sattr->index > 1) | |
117 | return sprintf(buf, "1\n"); | |
118 | ||
119 | ret = regmap_read(data->regmap, 0x5E, ®val); | |
120 | if (ret < 0) | |
121 | return ret; | |
122 | ||
123 | return sprintf(buf, "%u\n", !(regval & (1 << sattr->index))); | |
124 | } | |
125 | ||
ea33597c CS |
126 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, |
127 | char *buf) | |
128 | { | |
129 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
130 | struct nct7802_data *data = dev_get_drvdata(dev); | |
131 | unsigned int val; | |
132 | int ret; | |
133 | ||
1c6e8f6b CS |
134 | if (!attr->index) |
135 | return sprintf(buf, "255\n"); | |
136 | ||
ea33597c CS |
137 | ret = regmap_read(data->regmap, attr->index, &val); |
138 | if (ret < 0) | |
139 | return ret; | |
140 | ||
141 | return sprintf(buf, "%d\n", val); | |
142 | } | |
143 | ||
144 | static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr, | |
145 | const char *buf, size_t count) | |
146 | { | |
147 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
148 | struct nct7802_data *data = dev_get_drvdata(dev); | |
149 | int err; | |
150 | u8 val; | |
151 | ||
152 | err = kstrtou8(buf, 0, &val); | |
153 | if (err < 0) | |
154 | return err; | |
155 | ||
156 | err = regmap_write(data->regmap, attr->index, val); | |
157 | return err ? : count; | |
158 | } | |
fcdc5739 | 159 | |
5102f022 CS |
160 | static ssize_t show_pwm_enable(struct device *dev, |
161 | struct device_attribute *attr, char *buf) | |
162 | { | |
163 | struct nct7802_data *data = dev_get_drvdata(dev); | |
164 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
165 | unsigned int reg, enabled; | |
166 | int ret; | |
167 | ||
168 | ret = regmap_read(data->regmap, REG_SMARTFAN_EN(sattr->index), ®); | |
169 | if (ret < 0) | |
170 | return ret; | |
171 | enabled = reg >> SMARTFAN_EN_SHIFT(sattr->index) & 1; | |
172 | return sprintf(buf, "%u\n", enabled + 1); | |
173 | } | |
174 | ||
175 | static ssize_t store_pwm_enable(struct device *dev, | |
176 | struct device_attribute *attr, | |
177 | const char *buf, size_t count) | |
178 | { | |
179 | struct nct7802_data *data = dev_get_drvdata(dev); | |
180 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
181 | u8 val; | |
182 | int ret; | |
183 | ||
184 | ret = kstrtou8(buf, 0, &val); | |
185 | if (ret < 0) | |
186 | return ret; | |
187 | if (val < 1 || val > 2) | |
188 | return -EINVAL; | |
189 | ret = regmap_update_bits(data->regmap, REG_SMARTFAN_EN(sattr->index), | |
190 | 1 << SMARTFAN_EN_SHIFT(sattr->index), | |
191 | (val - 1) << SMARTFAN_EN_SHIFT(sattr->index)); | |
192 | return ret ? : count; | |
193 | } | |
194 | ||
3434f378 GR |
195 | static int nct7802_read_temp(struct nct7802_data *data, |
196 | u8 reg_temp, u8 reg_temp_low, int *temp) | |
197 | { | |
198 | unsigned int t1, t2 = 0; | |
199 | int err; | |
200 | ||
201 | *temp = 0; | |
202 | ||
203 | mutex_lock(&data->access_lock); | |
204 | err = regmap_read(data->regmap, reg_temp, &t1); | |
205 | if (err < 0) | |
206 | goto abort; | |
207 | t1 <<= 8; | |
208 | if (reg_temp_low) { /* 11 bit data */ | |
209 | err = regmap_read(data->regmap, reg_temp_low, &t2); | |
210 | if (err < 0) | |
211 | goto abort; | |
212 | } | |
213 | t1 |= t2 & 0xe0; | |
214 | *temp = (s16)t1 / 32 * 125; | |
215 | abort: | |
216 | mutex_unlock(&data->access_lock); | |
217 | return err; | |
218 | } | |
219 | ||
220 | static int nct7802_read_fan(struct nct7802_data *data, u8 reg_fan) | |
221 | { | |
222 | unsigned int f1, f2; | |
223 | int ret; | |
224 | ||
225 | mutex_lock(&data->access_lock); | |
226 | ret = regmap_read(data->regmap, reg_fan, &f1); | |
227 | if (ret < 0) | |
228 | goto abort; | |
229 | ret = regmap_read(data->regmap, REG_FANCOUNT_LOW, &f2); | |
230 | if (ret < 0) | |
231 | goto abort; | |
232 | ret = (f1 << 5) | (f2 >> 3); | |
233 | /* convert fan count to rpm */ | |
234 | if (ret == 0x1fff) /* maximum value, assume fan is stopped */ | |
235 | ret = 0; | |
236 | else if (ret) | |
237 | ret = DIV_ROUND_CLOSEST(1350000U, ret); | |
238 | abort: | |
239 | mutex_unlock(&data->access_lock); | |
240 | return ret; | |
241 | } | |
242 | ||
243 | static int nct7802_read_fan_min(struct nct7802_data *data, u8 reg_fan_low, | |
244 | u8 reg_fan_high) | |
245 | { | |
246 | unsigned int f1, f2; | |
247 | int ret; | |
248 | ||
249 | mutex_lock(&data->access_lock); | |
250 | ret = regmap_read(data->regmap, reg_fan_low, &f1); | |
251 | if (ret < 0) | |
252 | goto abort; | |
253 | ret = regmap_read(data->regmap, reg_fan_high, &f2); | |
254 | if (ret < 0) | |
255 | goto abort; | |
256 | ret = f1 | ((f2 & 0xf8) << 5); | |
257 | /* convert fan count to rpm */ | |
258 | if (ret == 0x1fff) /* maximum value, assume no limit */ | |
259 | ret = 0; | |
260 | else if (ret) | |
261 | ret = DIV_ROUND_CLOSEST(1350000U, ret); | |
262 | abort: | |
263 | mutex_unlock(&data->access_lock); | |
264 | return ret; | |
265 | } | |
266 | ||
267 | static int nct7802_write_fan_min(struct nct7802_data *data, u8 reg_fan_low, | |
268 | u8 reg_fan_high, unsigned int limit) | |
269 | { | |
270 | int err; | |
271 | ||
272 | if (limit) | |
273 | limit = DIV_ROUND_CLOSEST(1350000U, limit); | |
274 | else | |
275 | limit = 0x1fff; | |
276 | limit = clamp_val(limit, 0, 0x1fff); | |
277 | ||
278 | mutex_lock(&data->access_lock); | |
279 | err = regmap_write(data->regmap, reg_fan_low, limit & 0xff); | |
280 | if (err < 0) | |
281 | goto abort; | |
282 | ||
283 | err = regmap_write(data->regmap, reg_fan_high, (limit & 0x1f00) >> 5); | |
284 | abort: | |
285 | mutex_unlock(&data->access_lock); | |
286 | return err; | |
287 | } | |
288 | ||
289 | static u8 nct7802_vmul[] = { 4, 2, 2, 2, 2 }; | |
290 | ||
291 | static int nct7802_read_voltage(struct nct7802_data *data, int nr, int index) | |
292 | { | |
293 | unsigned int v1, v2; | |
294 | int ret; | |
295 | ||
296 | mutex_lock(&data->access_lock); | |
297 | if (index == 0) { /* voltage */ | |
298 | ret = regmap_read(data->regmap, REG_VOLTAGE[nr], &v1); | |
299 | if (ret < 0) | |
300 | goto abort; | |
301 | ret = regmap_read(data->regmap, REG_VOLTAGE_LOW, &v2); | |
302 | if (ret < 0) | |
303 | goto abort; | |
304 | ret = ((v1 << 2) | (v2 >> 6)) * nct7802_vmul[nr]; | |
305 | } else { /* limit */ | |
306 | int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr]; | |
307 | ||
308 | ret = regmap_read(data->regmap, | |
309 | REG_VOLTAGE_LIMIT_LSB[index - 1][nr], &v1); | |
310 | if (ret < 0) | |
311 | goto abort; | |
312 | ret = regmap_read(data->regmap, REG_VOLTAGE_LIMIT_MSB[nr], | |
313 | &v2); | |
314 | if (ret < 0) | |
315 | goto abort; | |
316 | ret = (v1 | ((v2 << shift) & 0x300)) * nct7802_vmul[nr]; | |
317 | } | |
318 | abort: | |
319 | mutex_unlock(&data->access_lock); | |
320 | return ret; | |
321 | } | |
322 | ||
323 | static int nct7802_write_voltage(struct nct7802_data *data, int nr, int index, | |
9200bc4c | 324 | unsigned long voltage) |
3434f378 GR |
325 | { |
326 | int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr]; | |
327 | int err; | |
328 | ||
329 | voltage = DIV_ROUND_CLOSEST(voltage, nct7802_vmul[nr]); | |
330 | voltage = clamp_val(voltage, 0, 0x3ff); | |
331 | ||
332 | mutex_lock(&data->access_lock); | |
333 | err = regmap_write(data->regmap, | |
334 | REG_VOLTAGE_LIMIT_LSB[index - 1][nr], | |
335 | voltage & 0xff); | |
336 | if (err < 0) | |
337 | goto abort; | |
338 | ||
339 | err = regmap_update_bits(data->regmap, REG_VOLTAGE_LIMIT_MSB[nr], | |
340 | 0x0300 >> shift, (voltage & 0x0300) >> shift); | |
341 | abort: | |
342 | mutex_unlock(&data->access_lock); | |
343 | return err; | |
344 | } | |
345 | ||
346 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
347 | char *buf) | |
348 | { | |
349 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
350 | struct nct7802_data *data = dev_get_drvdata(dev); | |
351 | int voltage; | |
352 | ||
353 | voltage = nct7802_read_voltage(data, sattr->nr, sattr->index); | |
354 | if (voltage < 0) | |
355 | return voltage; | |
356 | ||
357 | return sprintf(buf, "%d\n", voltage); | |
358 | } | |
359 | ||
360 | static ssize_t store_in(struct device *dev, struct device_attribute *attr, | |
361 | const char *buf, size_t count) | |
362 | { | |
363 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
364 | struct nct7802_data *data = dev_get_drvdata(dev); | |
365 | int index = sattr->index; | |
366 | int nr = sattr->nr; | |
367 | unsigned long val; | |
368 | int err; | |
369 | ||
370 | err = kstrtoul(buf, 10, &val); | |
371 | if (err < 0) | |
372 | return err; | |
373 | ||
374 | err = nct7802_write_voltage(data, nr, index, val); | |
375 | return err ? : count; | |
376 | } | |
377 | ||
378 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
379 | char *buf) | |
380 | { | |
381 | struct nct7802_data *data = dev_get_drvdata(dev); | |
382 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
383 | int err, temp; | |
384 | ||
385 | err = nct7802_read_temp(data, sattr->nr, sattr->index, &temp); | |
386 | if (err < 0) | |
387 | return err; | |
388 | ||
389 | return sprintf(buf, "%d\n", temp); | |
390 | } | |
391 | ||
392 | static ssize_t store_temp(struct device *dev, struct device_attribute *attr, | |
393 | const char *buf, size_t count) | |
394 | { | |
395 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
396 | struct nct7802_data *data = dev_get_drvdata(dev); | |
397 | int nr = sattr->nr; | |
398 | long val; | |
399 | int err; | |
400 | ||
401 | err = kstrtol(buf, 10, &val); | |
402 | if (err < 0) | |
403 | return err; | |
404 | ||
405 | val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127); | |
406 | ||
407 | err = regmap_write(data->regmap, nr, val & 0xff); | |
408 | return err ? : count; | |
409 | } | |
410 | ||
411 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
412 | char *buf) | |
413 | { | |
414 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
415 | struct nct7802_data *data = dev_get_drvdata(dev); | |
416 | int speed; | |
417 | ||
418 | speed = nct7802_read_fan(data, sattr->index); | |
419 | if (speed < 0) | |
420 | return speed; | |
421 | ||
422 | return sprintf(buf, "%d\n", speed); | |
423 | } | |
424 | ||
425 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
426 | char *buf) | |
427 | { | |
428 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
429 | struct nct7802_data *data = dev_get_drvdata(dev); | |
430 | int speed; | |
431 | ||
432 | speed = nct7802_read_fan_min(data, sattr->nr, sattr->index); | |
433 | if (speed < 0) | |
434 | return speed; | |
435 | ||
436 | return sprintf(buf, "%d\n", speed); | |
437 | } | |
438 | ||
439 | static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, | |
440 | const char *buf, size_t count) | |
441 | { | |
442 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
443 | struct nct7802_data *data = dev_get_drvdata(dev); | |
444 | unsigned long val; | |
445 | int err; | |
446 | ||
447 | err = kstrtoul(buf, 10, &val); | |
448 | if (err < 0) | |
449 | return err; | |
450 | ||
451 | err = nct7802_write_fan_min(data, sattr->nr, sattr->index, val); | |
452 | return err ? : count; | |
453 | } | |
454 | ||
455 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, | |
456 | char *buf) | |
457 | { | |
458 | struct nct7802_data *data = dev_get_drvdata(dev); | |
459 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
460 | int bit = sattr->index; | |
461 | unsigned int val; | |
462 | int ret; | |
463 | ||
464 | ret = regmap_read(data->regmap, sattr->nr, &val); | |
465 | if (ret < 0) | |
466 | return ret; | |
467 | ||
468 | return sprintf(buf, "%u\n", !!(val & (1 << bit))); | |
469 | } | |
470 | ||
471 | static ssize_t | |
472 | show_beep(struct device *dev, struct device_attribute *attr, char *buf) | |
473 | { | |
474 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
475 | struct nct7802_data *data = dev_get_drvdata(dev); | |
476 | unsigned int regval; | |
477 | int err; | |
478 | ||
479 | err = regmap_read(data->regmap, sattr->nr, ®val); | |
480 | if (err) | |
481 | return err; | |
482 | ||
483 | return sprintf(buf, "%u\n", !!(regval & (1 << sattr->index))); | |
484 | } | |
485 | ||
486 | static ssize_t | |
487 | store_beep(struct device *dev, struct device_attribute *attr, const char *buf, | |
488 | size_t count) | |
489 | { | |
490 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
491 | struct nct7802_data *data = dev_get_drvdata(dev); | |
492 | unsigned long val; | |
493 | int err; | |
494 | ||
495 | err = kstrtoul(buf, 10, &val); | |
496 | if (err < 0) | |
497 | return err; | |
498 | if (val > 1) | |
499 | return -EINVAL; | |
500 | ||
501 | err = regmap_update_bits(data->regmap, sattr->nr, 1 << sattr->index, | |
502 | val ? 1 << sattr->index : 0); | |
503 | return err ? : count; | |
504 | } | |
505 | ||
fcdc5739 CS |
506 | static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, |
507 | show_temp_type, store_temp_type, 0); | |
3434f378 GR |
508 | static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0x01, |
509 | REG_TEMP_LSB); | |
510 | static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, | |
511 | store_temp, 0x31, 0); | |
512 | static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, | |
513 | store_temp, 0x30, 0); | |
514 | static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, | |
515 | store_temp, 0x3a, 0); | |
516 | ||
fcdc5739 CS |
517 | static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, |
518 | show_temp_type, store_temp_type, 1); | |
3434f378 GR |
519 | static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0x02, |
520 | REG_TEMP_LSB); | |
521 | static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, | |
522 | store_temp, 0x33, 0); | |
523 | static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, | |
524 | store_temp, 0x32, 0); | |
525 | static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, | |
526 | store_temp, 0x3b, 0); | |
527 | ||
fcdc5739 CS |
528 | static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, |
529 | show_temp_type, store_temp_type, 2); | |
3434f378 GR |
530 | static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0x03, |
531 | REG_TEMP_LSB); | |
532 | static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, | |
533 | store_temp, 0x35, 0); | |
534 | static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, | |
535 | store_temp, 0x34, 0); | |
536 | static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, | |
537 | store_temp, 0x3c, 0); | |
538 | ||
539 | static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 0x04, 0); | |
540 | static SENSOR_DEVICE_ATTR_2(temp4_min, S_IRUGO | S_IWUSR, show_temp, | |
541 | store_temp, 0x37, 0); | |
542 | static SENSOR_DEVICE_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, | |
543 | store_temp, 0x36, 0); | |
544 | static SENSOR_DEVICE_ATTR_2(temp4_crit, S_IRUGO | S_IWUSR, show_temp, | |
545 | store_temp, 0x3d, 0); | |
546 | ||
547 | static SENSOR_DEVICE_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 0x06, | |
548 | REG_TEMP_PECI_LSB); | |
549 | static SENSOR_DEVICE_ATTR_2(temp5_min, S_IRUGO | S_IWUSR, show_temp, | |
550 | store_temp, 0x39, 0); | |
551 | static SENSOR_DEVICE_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, | |
552 | store_temp, 0x38, 0); | |
553 | static SENSOR_DEVICE_ATTR_2(temp5_crit, S_IRUGO | S_IWUSR, show_temp, | |
554 | store_temp, 0x3e, 0); | |
555 | ||
556 | static SENSOR_DEVICE_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 0x07, | |
557 | REG_TEMP_PECI_LSB); | |
558 | ||
559 | static SENSOR_DEVICE_ATTR_2(temp1_min_alarm, S_IRUGO, show_alarm, NULL, | |
560 | 0x18, 0); | |
561 | static SENSOR_DEVICE_ATTR_2(temp2_min_alarm, S_IRUGO, show_alarm, NULL, | |
562 | 0x18, 1); | |
563 | static SENSOR_DEVICE_ATTR_2(temp3_min_alarm, S_IRUGO, show_alarm, NULL, | |
564 | 0x18, 2); | |
565 | static SENSOR_DEVICE_ATTR_2(temp4_min_alarm, S_IRUGO, show_alarm, NULL, | |
566 | 0x18, 3); | |
567 | static SENSOR_DEVICE_ATTR_2(temp5_min_alarm, S_IRUGO, show_alarm, NULL, | |
568 | 0x18, 4); | |
569 | ||
570 | static SENSOR_DEVICE_ATTR_2(temp1_max_alarm, S_IRUGO, show_alarm, NULL, | |
571 | 0x19, 0); | |
572 | static SENSOR_DEVICE_ATTR_2(temp2_max_alarm, S_IRUGO, show_alarm, NULL, | |
573 | 0x19, 1); | |
574 | static SENSOR_DEVICE_ATTR_2(temp3_max_alarm, S_IRUGO, show_alarm, NULL, | |
575 | 0x19, 2); | |
576 | static SENSOR_DEVICE_ATTR_2(temp4_max_alarm, S_IRUGO, show_alarm, NULL, | |
577 | 0x19, 3); | |
578 | static SENSOR_DEVICE_ATTR_2(temp5_max_alarm, S_IRUGO, show_alarm, NULL, | |
579 | 0x19, 4); | |
580 | ||
581 | static SENSOR_DEVICE_ATTR_2(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, | |
582 | 0x1b, 0); | |
583 | static SENSOR_DEVICE_ATTR_2(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, | |
584 | 0x1b, 1); | |
585 | static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, | |
586 | 0x1b, 2); | |
587 | static SENSOR_DEVICE_ATTR_2(temp4_crit_alarm, S_IRUGO, show_alarm, NULL, | |
588 | 0x1b, 3); | |
589 | static SENSOR_DEVICE_ATTR_2(temp5_crit_alarm, S_IRUGO, show_alarm, NULL, | |
590 | 0x1b, 4); | |
591 | ||
592 | static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_alarm, NULL, 0x17, 0); | |
593 | static SENSOR_DEVICE_ATTR_2(temp2_fault, S_IRUGO, show_alarm, NULL, 0x17, 1); | |
594 | static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_alarm, NULL, 0x17, 2); | |
595 | ||
596 | static SENSOR_DEVICE_ATTR_2(temp1_beep, S_IRUGO | S_IWUSR, show_beep, | |
597 | store_beep, 0x5c, 0); | |
598 | static SENSOR_DEVICE_ATTR_2(temp2_beep, S_IRUGO | S_IWUSR, show_beep, | |
599 | store_beep, 0x5c, 1); | |
600 | static SENSOR_DEVICE_ATTR_2(temp3_beep, S_IRUGO | S_IWUSR, show_beep, | |
601 | store_beep, 0x5c, 2); | |
602 | static SENSOR_DEVICE_ATTR_2(temp4_beep, S_IRUGO | S_IWUSR, show_beep, | |
603 | store_beep, 0x5c, 3); | |
604 | static SENSOR_DEVICE_ATTR_2(temp5_beep, S_IRUGO | S_IWUSR, show_beep, | |
605 | store_beep, 0x5c, 4); | |
606 | static SENSOR_DEVICE_ATTR_2(temp6_beep, S_IRUGO | S_IWUSR, show_beep, | |
607 | store_beep, 0x5c, 5); | |
608 | ||
609 | static struct attribute *nct7802_temp_attrs[] = { | |
fcdc5739 | 610 | &sensor_dev_attr_temp1_type.dev_attr.attr, |
3434f378 GR |
611 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
612 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
613 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
614 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
615 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, | |
616 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, | |
617 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, | |
618 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
619 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
620 | ||
fcdc5739 CS |
621 | &sensor_dev_attr_temp2_type.dev_attr.attr, /* 10 */ |
622 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
3434f378 GR |
623 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
624 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
625 | &sensor_dev_attr_temp2_crit.dev_attr.attr, | |
626 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, | |
627 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, | |
628 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, | |
629 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
630 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
631 | ||
fcdc5739 CS |
632 | &sensor_dev_attr_temp3_type.dev_attr.attr, /* 20 */ |
633 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
3434f378 GR |
634 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
635 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
636 | &sensor_dev_attr_temp3_crit.dev_attr.attr, | |
637 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, | |
638 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, | |
639 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, | |
640 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
641 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
642 | ||
fcdc5739 | 643 | &sensor_dev_attr_temp4_input.dev_attr.attr, /* 30 */ |
3434f378 GR |
644 | &sensor_dev_attr_temp4_min.dev_attr.attr, |
645 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
646 | &sensor_dev_attr_temp4_crit.dev_attr.attr, | |
647 | &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, | |
648 | &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, | |
649 | &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, | |
650 | &sensor_dev_attr_temp4_beep.dev_attr.attr, | |
651 | ||
fcdc5739 | 652 | &sensor_dev_attr_temp5_input.dev_attr.attr, /* 38 */ |
3434f378 GR |
653 | &sensor_dev_attr_temp5_min.dev_attr.attr, |
654 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
655 | &sensor_dev_attr_temp5_crit.dev_attr.attr, | |
656 | &sensor_dev_attr_temp5_min_alarm.dev_attr.attr, | |
657 | &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, | |
658 | &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, | |
659 | &sensor_dev_attr_temp5_beep.dev_attr.attr, | |
660 | ||
fcdc5739 | 661 | &sensor_dev_attr_temp6_input.dev_attr.attr, /* 46 */ |
3434f378 GR |
662 | &sensor_dev_attr_temp6_beep.dev_attr.attr, |
663 | ||
664 | NULL | |
665 | }; | |
666 | ||
667 | static umode_t nct7802_temp_is_visible(struct kobject *kobj, | |
668 | struct attribute *attr, int index) | |
669 | { | |
670 | struct device *dev = container_of(kobj, struct device, kobj); | |
671 | struct nct7802_data *data = dev_get_drvdata(dev); | |
672 | unsigned int reg; | |
673 | int err; | |
674 | ||
675 | err = regmap_read(data->regmap, REG_MODE, ®); | |
676 | if (err < 0) | |
677 | return 0; | |
678 | ||
fcdc5739 | 679 | if (index < 10 && |
3434f378 GR |
680 | (reg & 03) != 0x01 && (reg & 0x03) != 0x02) /* RD1 */ |
681 | return 0; | |
fcdc5739 CS |
682 | |
683 | if (index >= 10 && index < 20 && | |
3434f378 GR |
684 | (reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08) /* RD2 */ |
685 | return 0; | |
fcdc5739 | 686 | if (index >= 20 && index < 30 && (reg & 0x30) != 0x20) /* RD3 */ |
3434f378 | 687 | return 0; |
fcdc5739 CS |
688 | |
689 | if (index >= 30 && index < 38) /* local */ | |
3434f378 GR |
690 | return attr->mode; |
691 | ||
692 | err = regmap_read(data->regmap, REG_PECI_ENABLE, ®); | |
693 | if (err < 0) | |
694 | return 0; | |
695 | ||
fcdc5739 | 696 | if (index >= 38 && index < 46 && !(reg & 0x01)) /* PECI 0 */ |
3434f378 GR |
697 | return 0; |
698 | ||
fcdc5739 | 699 | if (index >= 0x46 && (!(reg & 0x02))) /* PECI 1 */ |
3434f378 GR |
700 | return 0; |
701 | ||
702 | return attr->mode; | |
703 | } | |
704 | ||
705 | static struct attribute_group nct7802_temp_group = { | |
706 | .attrs = nct7802_temp_attrs, | |
707 | .is_visible = nct7802_temp_is_visible, | |
708 | }; | |
709 | ||
710 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0); | |
711 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, store_in, | |
712 | 0, 1); | |
713 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, store_in, | |
714 | 0, 2); | |
715 | static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_alarm, NULL, 0x1e, 3); | |
716 | static SENSOR_DEVICE_ATTR_2(in0_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
717 | 0x5a, 3); | |
718 | ||
719 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0); | |
720 | ||
721 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0); | |
722 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, store_in, | |
723 | 2, 1); | |
724 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, store_in, | |
725 | 2, 2); | |
726 | static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_alarm, NULL, 0x1e, 0); | |
727 | static SENSOR_DEVICE_ATTR_2(in2_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
728 | 0x5a, 0); | |
729 | ||
730 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0); | |
731 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, store_in, | |
732 | 3, 1); | |
733 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, store_in, | |
734 | 3, 2); | |
735 | static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_alarm, NULL, 0x1e, 1); | |
736 | static SENSOR_DEVICE_ATTR_2(in3_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
737 | 0x5a, 1); | |
738 | ||
739 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0); | |
740 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, store_in, | |
741 | 4, 1); | |
742 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, store_in, | |
743 | 4, 2); | |
744 | static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_alarm, NULL, 0x1e, 2); | |
745 | static SENSOR_DEVICE_ATTR_2(in4_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
746 | 0x5a, 2); | |
747 | ||
748 | static struct attribute *nct7802_in_attrs[] = { | |
749 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
750 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
751 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
752 | &sensor_dev_attr_in0_alarm.dev_attr.attr, | |
753 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
754 | ||
755 | &sensor_dev_attr_in1_input.dev_attr.attr, /* 5 */ | |
756 | ||
757 | &sensor_dev_attr_in2_input.dev_attr.attr, /* 6 */ | |
758 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
759 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
760 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
761 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
762 | ||
763 | &sensor_dev_attr_in3_input.dev_attr.attr, /* 11 */ | |
764 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
765 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
766 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
767 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
768 | ||
769 | &sensor_dev_attr_in4_input.dev_attr.attr, /* 17 */ | |
770 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
771 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
772 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
773 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
774 | ||
775 | NULL, | |
776 | }; | |
777 | ||
778 | static umode_t nct7802_in_is_visible(struct kobject *kobj, | |
779 | struct attribute *attr, int index) | |
780 | { | |
781 | struct device *dev = container_of(kobj, struct device, kobj); | |
782 | struct nct7802_data *data = dev_get_drvdata(dev); | |
783 | unsigned int reg; | |
784 | int err; | |
785 | ||
786 | if (index < 6) /* VCC, VCORE */ | |
787 | return attr->mode; | |
788 | ||
789 | err = regmap_read(data->regmap, REG_MODE, ®); | |
790 | if (err < 0) | |
791 | return 0; | |
792 | ||
793 | if (index >= 6 && index < 11 && (reg & 0x03) != 0x03) /* VSEN1 */ | |
794 | return 0; | |
795 | if (index >= 11 && index < 17 && (reg & 0x0c) != 0x0c) /* VSEN2 */ | |
796 | return 0; | |
797 | if (index >= 17 && (reg & 0x30) != 0x30) /* VSEN3 */ | |
798 | return 0; | |
799 | ||
800 | return attr->mode; | |
801 | } | |
802 | ||
803 | static struct attribute_group nct7802_in_group = { | |
804 | .attrs = nct7802_in_attrs, | |
805 | .is_visible = nct7802_in_is_visible, | |
806 | }; | |
807 | ||
808 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0x10); | |
809 | static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan_min, | |
810 | store_fan_min, 0x49, 0x4c); | |
811 | static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_alarm, NULL, 0x1a, 0); | |
812 | static SENSOR_DEVICE_ATTR_2(fan1_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
813 | 0x5b, 0); | |
814 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 0x11); | |
815 | static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan_min, | |
816 | store_fan_min, 0x4a, 0x4d); | |
817 | static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_alarm, NULL, 0x1a, 1); | |
818 | static SENSOR_DEVICE_ATTR_2(fan2_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
819 | 0x5b, 1); | |
820 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 0x12); | |
821 | static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan_min, | |
822 | store_fan_min, 0x4b, 0x4e); | |
823 | static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_alarm, NULL, 0x1a, 2); | |
824 | static SENSOR_DEVICE_ATTR_2(fan3_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, | |
825 | 0x5b, 2); | |
826 | ||
876420e0 CS |
827 | /* 7.2.89 Fan Control Output Type */ |
828 | static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0); | |
829 | static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1); | |
830 | static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2); | |
831 | ||
ea33597c | 832 | /* 7.2.91... Fan Control Output Value */ |
1c6e8f6b CS |
833 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, |
834 | REG_PWM(0)); | |
835 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, | |
836 | REG_PWM(1)); | |
837 | static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, | |
838 | REG_PWM(2)); | |
ea33597c | 839 | |
5102f022 CS |
840 | /* 7.2.95... Temperature to Fan mapping Relationships Register */ |
841 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, | |
842 | store_pwm_enable, 0); | |
843 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, | |
844 | store_pwm_enable, 1); | |
845 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, | |
846 | store_pwm_enable, 2); | |
847 | ||
3434f378 GR |
848 | static struct attribute *nct7802_fan_attrs[] = { |
849 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
850 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
851 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
852 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
853 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
854 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
855 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
856 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
857 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
858 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
859 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
860 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
861 | ||
862 | NULL | |
863 | }; | |
864 | ||
865 | static umode_t nct7802_fan_is_visible(struct kobject *kobj, | |
866 | struct attribute *attr, int index) | |
867 | { | |
868 | struct device *dev = container_of(kobj, struct device, kobj); | |
869 | struct nct7802_data *data = dev_get_drvdata(dev); | |
870 | int fan = index / 4; /* 4 attributes per fan */ | |
871 | unsigned int reg; | |
872 | int err; | |
873 | ||
874 | err = regmap_read(data->regmap, REG_FAN_ENABLE, ®); | |
875 | if (err < 0 || !(reg & (1 << fan))) | |
876 | return 0; | |
877 | ||
878 | return attr->mode; | |
879 | } | |
880 | ||
881 | static struct attribute_group nct7802_fan_group = { | |
882 | .attrs = nct7802_fan_attrs, | |
883 | .is_visible = nct7802_fan_is_visible, | |
884 | }; | |
885 | ||
ea33597c | 886 | static struct attribute *nct7802_pwm_attrs[] = { |
5102f022 | 887 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
876420e0 | 888 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, |
ea33597c | 889 | &sensor_dev_attr_pwm1.dev_attr.attr, |
5102f022 | 890 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
876420e0 | 891 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, |
ea33597c | 892 | &sensor_dev_attr_pwm2.dev_attr.attr, |
5102f022 | 893 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
876420e0 | 894 | &sensor_dev_attr_pwm3_mode.dev_attr.attr, |
ea33597c CS |
895 | &sensor_dev_attr_pwm3.dev_attr.attr, |
896 | NULL | |
897 | }; | |
898 | ||
899 | static struct attribute_group nct7802_pwm_group = { | |
900 | .attrs = nct7802_pwm_attrs, | |
901 | }; | |
902 | ||
1c6e8f6b CS |
903 | /* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */ |
904 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR, | |
905 | show_temp, store_temp, 0x80, 0); | |
906 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR, | |
907 | show_temp, store_temp, 0x81, 0); | |
908 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR, | |
909 | show_temp, store_temp, 0x82, 0); | |
910 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR, | |
911 | show_temp, store_temp, 0x83, 0); | |
912 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point5_temp, S_IRUGO | S_IWUSR, | |
913 | show_temp, store_temp, 0x84, 0); | |
914 | ||
915 | /* 7.2.120... 0x85-0x88 PWM (Y-axis) transition */ | |
916 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, | |
917 | show_pwm, store_pwm, 0x85); | |
918 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, | |
919 | show_pwm, store_pwm, 0x86); | |
920 | static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR, | |
921 | show_pwm, store_pwm, 0x87); | |
922 | static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO | S_IWUSR, | |
923 | show_pwm, store_pwm, 0x88); | |
924 | static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0); | |
925 | ||
926 | /* 7.2.124 Table 2 X-axis Transition Point 1 Register */ | |
927 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR, | |
928 | show_temp, store_temp, 0x90, 0); | |
929 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR, | |
930 | show_temp, store_temp, 0x91, 0); | |
931 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR, | |
932 | show_temp, store_temp, 0x92, 0); | |
933 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR, | |
934 | show_temp, store_temp, 0x93, 0); | |
935 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point5_temp, S_IRUGO | S_IWUSR, | |
936 | show_temp, store_temp, 0x94, 0); | |
937 | ||
938 | /* 7.2.129 Table 2 Y-axis Transition Point 1 Register */ | |
939 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, | |
940 | show_pwm, store_pwm, 0x95); | |
941 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, | |
942 | show_pwm, store_pwm, 0x96); | |
943 | static SENSOR_DEVICE_ATTR(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR, | |
944 | show_pwm, store_pwm, 0x97); | |
945 | static SENSOR_DEVICE_ATTR(pwm2_auto_point4_pwm, S_IRUGO | S_IWUSR, | |
946 | show_pwm, store_pwm, 0x98); | |
947 | static SENSOR_DEVICE_ATTR(pwm2_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0); | |
948 | ||
949 | /* 7.2.133 Table 3 X-axis Transition Point 1 Register */ | |
950 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR, | |
951 | show_temp, store_temp, 0xA0, 0); | |
952 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR, | |
953 | show_temp, store_temp, 0xA1, 0); | |
954 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR, | |
955 | show_temp, store_temp, 0xA2, 0); | |
956 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR, | |
957 | show_temp, store_temp, 0xA3, 0); | |
958 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point5_temp, S_IRUGO | S_IWUSR, | |
959 | show_temp, store_temp, 0xA4, 0); | |
960 | ||
961 | /* 7.2.138 Table 3 Y-axis Transition Point 1 Register */ | |
962 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, | |
963 | show_pwm, store_pwm, 0xA5); | |
964 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, | |
965 | show_pwm, store_pwm, 0xA6); | |
966 | static SENSOR_DEVICE_ATTR(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR, | |
967 | show_pwm, store_pwm, 0xA7); | |
968 | static SENSOR_DEVICE_ATTR(pwm3_auto_point4_pwm, S_IRUGO | S_IWUSR, | |
969 | show_pwm, store_pwm, 0xA8); | |
970 | static SENSOR_DEVICE_ATTR(pwm3_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0); | |
971 | ||
972 | static struct attribute *nct7802_auto_point_attrs[] = { | |
973 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
974 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
975 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, | |
976 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, | |
977 | &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr, | |
978 | ||
979 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
980 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
981 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, | |
982 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, | |
983 | &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr, | |
984 | ||
985 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
986 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
987 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, | |
988 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, | |
989 | &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr, | |
990 | ||
991 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
992 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
993 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, | |
994 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, | |
995 | &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr, | |
996 | ||
997 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
998 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
999 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, | |
1000 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, | |
1001 | &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr, | |
1002 | ||
1003 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1004 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1005 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, | |
1006 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, | |
1007 | &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr, | |
1008 | ||
1009 | NULL | |
1010 | }; | |
1011 | ||
1012 | static struct attribute_group nct7802_auto_point_group = { | |
1013 | .attrs = nct7802_auto_point_attrs, | |
1014 | }; | |
1015 | ||
3434f378 GR |
1016 | static const struct attribute_group *nct7802_groups[] = { |
1017 | &nct7802_temp_group, | |
1018 | &nct7802_in_group, | |
1019 | &nct7802_fan_group, | |
ea33597c | 1020 | &nct7802_pwm_group, |
1c6e8f6b | 1021 | &nct7802_auto_point_group, |
3434f378 GR |
1022 | NULL |
1023 | }; | |
1024 | ||
1025 | static int nct7802_detect(struct i2c_client *client, | |
1026 | struct i2c_board_info *info) | |
1027 | { | |
1028 | int reg; | |
1029 | ||
1030 | /* | |
1031 | * Chip identification registers are only available in bank 0, | |
1032 | * so only attempt chip detection if bank 0 is selected | |
1033 | */ | |
1034 | reg = i2c_smbus_read_byte_data(client, REG_BANK); | |
1035 | if (reg != 0x00) | |
1036 | return -ENODEV; | |
1037 | ||
1038 | reg = i2c_smbus_read_byte_data(client, REG_VENDOR_ID); | |
1039 | if (reg != 0x50) | |
1040 | return -ENODEV; | |
1041 | ||
1042 | reg = i2c_smbus_read_byte_data(client, REG_CHIP_ID); | |
1043 | if (reg != 0xc3) | |
1044 | return -ENODEV; | |
1045 | ||
1046 | reg = i2c_smbus_read_byte_data(client, REG_VERSION_ID); | |
1047 | if (reg < 0 || (reg & 0xf0) != 0x20) | |
1048 | return -ENODEV; | |
1049 | ||
1050 | /* Also validate lower bits of voltage and temperature registers */ | |
1051 | reg = i2c_smbus_read_byte_data(client, REG_TEMP_LSB); | |
1052 | if (reg < 0 || (reg & 0x1f)) | |
1053 | return -ENODEV; | |
1054 | ||
1055 | reg = i2c_smbus_read_byte_data(client, REG_TEMP_PECI_LSB); | |
1056 | if (reg < 0 || (reg & 0x3f)) | |
1057 | return -ENODEV; | |
1058 | ||
1059 | reg = i2c_smbus_read_byte_data(client, REG_VOLTAGE_LOW); | |
1060 | if (reg < 0 || (reg & 0x3f)) | |
1061 | return -ENODEV; | |
1062 | ||
1063 | strlcpy(info->type, "nct7802", I2C_NAME_SIZE); | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | static bool nct7802_regmap_is_volatile(struct device *dev, unsigned int reg) | |
1068 | { | |
1c6e8f6b CS |
1069 | return (reg != REG_BANK && reg <= 0x20) || |
1070 | (reg >= REG_PWM(0) && reg <= REG_PWM(2)); | |
3434f378 GR |
1071 | } |
1072 | ||
3c535bca | 1073 | static const struct regmap_config nct7802_regmap_config = { |
3434f378 GR |
1074 | .reg_bits = 8, |
1075 | .val_bits = 8, | |
1076 | .cache_type = REGCACHE_RBTREE, | |
1077 | .volatile_reg = nct7802_regmap_is_volatile, | |
1078 | }; | |
1079 | ||
1080 | static int nct7802_init_chip(struct nct7802_data *data) | |
1081 | { | |
1082 | int err; | |
1083 | ||
1084 | /* Enable ADC */ | |
1085 | err = regmap_update_bits(data->regmap, REG_START, 0x01, 0x01); | |
1086 | if (err) | |
1087 | return err; | |
1088 | ||
1089 | /* Enable local temperature sensor */ | |
1090 | err = regmap_update_bits(data->regmap, REG_MODE, 0x40, 0x40); | |
1091 | if (err) | |
1092 | return err; | |
1093 | ||
1094 | /* Enable Vcore and VCC voltage monitoring */ | |
1095 | return regmap_update_bits(data->regmap, REG_VMON_ENABLE, 0x03, 0x03); | |
1096 | } | |
1097 | ||
1098 | static int nct7802_probe(struct i2c_client *client, | |
1099 | const struct i2c_device_id *id) | |
1100 | { | |
1101 | struct device *dev = &client->dev; | |
1102 | struct nct7802_data *data; | |
1103 | struct device *hwmon_dev; | |
1104 | int ret; | |
1105 | ||
1106 | data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); | |
1107 | if (data == NULL) | |
1108 | return -ENOMEM; | |
1109 | ||
1110 | data->regmap = devm_regmap_init_i2c(client, &nct7802_regmap_config); | |
1111 | if (IS_ERR(data->regmap)) | |
1112 | return PTR_ERR(data->regmap); | |
1113 | ||
1114 | mutex_init(&data->access_lock); | |
1115 | ||
1116 | ret = nct7802_init_chip(data); | |
1117 | if (ret < 0) | |
1118 | return ret; | |
1119 | ||
1120 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, | |
1121 | data, | |
1122 | nct7802_groups); | |
1123 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
1124 | } | |
1125 | ||
1126 | static const unsigned short nct7802_address_list[] = { | |
1127 | 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END | |
1128 | }; | |
1129 | ||
1130 | static const struct i2c_device_id nct7802_idtable[] = { | |
1131 | { "nct7802", 0 }, | |
1132 | { } | |
1133 | }; | |
1134 | MODULE_DEVICE_TABLE(i2c, nct7802_idtable); | |
1135 | ||
1136 | static struct i2c_driver nct7802_driver = { | |
1137 | .class = I2C_CLASS_HWMON, | |
1138 | .driver = { | |
1139 | .name = DRVNAME, | |
1140 | }, | |
1141 | .detect = nct7802_detect, | |
1142 | .probe = nct7802_probe, | |
1143 | .id_table = nct7802_idtable, | |
1144 | .address_list = nct7802_address_list, | |
1145 | }; | |
1146 | ||
1147 | module_i2c_driver(nct7802_driver); | |
1148 | ||
1149 | MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); | |
1150 | MODULE_DESCRIPTION("NCT7802Y Hardware Monitoring Driver"); | |
1151 | MODULE_LICENSE("GPL v2"); |