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 | ||
4aabaf30 GR |
72 | static ssize_t temp_type_show(struct device *dev, |
73 | struct device_attribute *attr, char *buf) | |
fcdc5739 CS |
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 | ||
4aabaf30 GR |
87 | static ssize_t temp_type_store(struct device *dev, |
88 | struct device_attribute *attr, const char *buf, | |
89 | size_t count) | |
fcdc5739 CS |
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 | ||
4aabaf30 GR |
108 | static ssize_t pwm_mode_show(struct device *dev, |
109 | struct device_attribute *attr, char *buf) | |
876420e0 CS |
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 | ||
4aabaf30 | 126 | static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr, |
ea33597c CS |
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 | ||
4aabaf30 | 144 | static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr, |
ea33597c CS |
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 | |
4aabaf30 | 160 | static ssize_t pwm_enable_show(struct device *dev, |
5102f022 CS |
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 | ||
4aabaf30 | 175 | static ssize_t pwm_enable_store(struct device *dev, |
5102f022 CS |
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); | |
c0d04e91 GR |
262 | else |
263 | ret = 1350000U; | |
3434f378 GR |
264 | abort: |
265 | mutex_unlock(&data->access_lock); | |
266 | return ret; | |
267 | } | |
268 | ||
269 | static int nct7802_write_fan_min(struct nct7802_data *data, u8 reg_fan_low, | |
c0d04e91 | 270 | u8 reg_fan_high, unsigned long limit) |
3434f378 GR |
271 | { |
272 | int err; | |
273 | ||
274 | if (limit) | |
275 | limit = DIV_ROUND_CLOSEST(1350000U, limit); | |
276 | else | |
277 | limit = 0x1fff; | |
278 | limit = clamp_val(limit, 0, 0x1fff); | |
279 | ||
280 | mutex_lock(&data->access_lock); | |
281 | err = regmap_write(data->regmap, reg_fan_low, limit & 0xff); | |
282 | if (err < 0) | |
283 | goto abort; | |
284 | ||
285 | err = regmap_write(data->regmap, reg_fan_high, (limit & 0x1f00) >> 5); | |
286 | abort: | |
287 | mutex_unlock(&data->access_lock); | |
288 | return err; | |
289 | } | |
290 | ||
291 | static u8 nct7802_vmul[] = { 4, 2, 2, 2, 2 }; | |
292 | ||
293 | static int nct7802_read_voltage(struct nct7802_data *data, int nr, int index) | |
294 | { | |
295 | unsigned int v1, v2; | |
296 | int ret; | |
297 | ||
298 | mutex_lock(&data->access_lock); | |
299 | if (index == 0) { /* voltage */ | |
300 | ret = regmap_read(data->regmap, REG_VOLTAGE[nr], &v1); | |
301 | if (ret < 0) | |
302 | goto abort; | |
303 | ret = regmap_read(data->regmap, REG_VOLTAGE_LOW, &v2); | |
304 | if (ret < 0) | |
305 | goto abort; | |
306 | ret = ((v1 << 2) | (v2 >> 6)) * nct7802_vmul[nr]; | |
307 | } else { /* limit */ | |
308 | int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr]; | |
309 | ||
310 | ret = regmap_read(data->regmap, | |
311 | REG_VOLTAGE_LIMIT_LSB[index - 1][nr], &v1); | |
312 | if (ret < 0) | |
313 | goto abort; | |
314 | ret = regmap_read(data->regmap, REG_VOLTAGE_LIMIT_MSB[nr], | |
315 | &v2); | |
316 | if (ret < 0) | |
317 | goto abort; | |
318 | ret = (v1 | ((v2 << shift) & 0x300)) * nct7802_vmul[nr]; | |
319 | } | |
320 | abort: | |
321 | mutex_unlock(&data->access_lock); | |
322 | return ret; | |
323 | } | |
324 | ||
325 | static int nct7802_write_voltage(struct nct7802_data *data, int nr, int index, | |
9200bc4c | 326 | unsigned long voltage) |
3434f378 GR |
327 | { |
328 | int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr]; | |
329 | int err; | |
330 | ||
c0d04e91 | 331 | voltage = clamp_val(voltage, 0, 0x3ff * nct7802_vmul[nr]); |
3434f378 | 332 | voltage = DIV_ROUND_CLOSEST(voltage, nct7802_vmul[nr]); |
3434f378 GR |
333 | |
334 | mutex_lock(&data->access_lock); | |
335 | err = regmap_write(data->regmap, | |
336 | REG_VOLTAGE_LIMIT_LSB[index - 1][nr], | |
337 | voltage & 0xff); | |
338 | if (err < 0) | |
339 | goto abort; | |
340 | ||
341 | err = regmap_update_bits(data->regmap, REG_VOLTAGE_LIMIT_MSB[nr], | |
342 | 0x0300 >> shift, (voltage & 0x0300) >> shift); | |
343 | abort: | |
344 | mutex_unlock(&data->access_lock); | |
345 | return err; | |
346 | } | |
347 | ||
4aabaf30 | 348 | static ssize_t in_show(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
349 | char *buf) |
350 | { | |
351 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
352 | struct nct7802_data *data = dev_get_drvdata(dev); | |
353 | int voltage; | |
354 | ||
355 | voltage = nct7802_read_voltage(data, sattr->nr, sattr->index); | |
356 | if (voltage < 0) | |
357 | return voltage; | |
358 | ||
359 | return sprintf(buf, "%d\n", voltage); | |
360 | } | |
361 | ||
4aabaf30 | 362 | static ssize_t in_store(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
363 | const char *buf, size_t count) |
364 | { | |
365 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
366 | struct nct7802_data *data = dev_get_drvdata(dev); | |
367 | int index = sattr->index; | |
368 | int nr = sattr->nr; | |
369 | unsigned long val; | |
370 | int err; | |
371 | ||
372 | err = kstrtoul(buf, 10, &val); | |
373 | if (err < 0) | |
374 | return err; | |
375 | ||
376 | err = nct7802_write_voltage(data, nr, index, val); | |
377 | return err ? : count; | |
378 | } | |
379 | ||
4aabaf30 | 380 | static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
381 | char *buf) |
382 | { | |
383 | struct nct7802_data *data = dev_get_drvdata(dev); | |
384 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
385 | int err, temp; | |
386 | ||
387 | err = nct7802_read_temp(data, sattr->nr, sattr->index, &temp); | |
388 | if (err < 0) | |
389 | return err; | |
390 | ||
391 | return sprintf(buf, "%d\n", temp); | |
392 | } | |
393 | ||
4aabaf30 | 394 | static ssize_t temp_store(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
395 | const char *buf, size_t count) |
396 | { | |
397 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
398 | struct nct7802_data *data = dev_get_drvdata(dev); | |
399 | int nr = sattr->nr; | |
400 | long val; | |
401 | int err; | |
402 | ||
403 | err = kstrtol(buf, 10, &val); | |
404 | if (err < 0) | |
405 | return err; | |
406 | ||
c0d04e91 | 407 | val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000); |
3434f378 GR |
408 | |
409 | err = regmap_write(data->regmap, nr, val & 0xff); | |
410 | return err ? : count; | |
411 | } | |
412 | ||
4aabaf30 | 413 | static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
414 | char *buf) |
415 | { | |
416 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); | |
417 | struct nct7802_data *data = dev_get_drvdata(dev); | |
418 | int speed; | |
419 | ||
420 | speed = nct7802_read_fan(data, sattr->index); | |
421 | if (speed < 0) | |
422 | return speed; | |
423 | ||
424 | return sprintf(buf, "%d\n", speed); | |
425 | } | |
426 | ||
4aabaf30 | 427 | static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
428 | char *buf) |
429 | { | |
430 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
431 | struct nct7802_data *data = dev_get_drvdata(dev); | |
432 | int speed; | |
433 | ||
434 | speed = nct7802_read_fan_min(data, sattr->nr, sattr->index); | |
435 | if (speed < 0) | |
436 | return speed; | |
437 | ||
438 | return sprintf(buf, "%d\n", speed); | |
439 | } | |
440 | ||
4aabaf30 GR |
441 | static ssize_t fan_min_store(struct device *dev, |
442 | struct device_attribute *attr, const char *buf, | |
443 | size_t count) | |
3434f378 GR |
444 | { |
445 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
446 | struct nct7802_data *data = dev_get_drvdata(dev); | |
447 | unsigned long val; | |
448 | int err; | |
449 | ||
450 | err = kstrtoul(buf, 10, &val); | |
451 | if (err < 0) | |
452 | return err; | |
453 | ||
454 | err = nct7802_write_fan_min(data, sattr->nr, sattr->index, val); | |
455 | return err ? : count; | |
456 | } | |
457 | ||
4aabaf30 | 458 | static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, |
3434f378 GR |
459 | char *buf) |
460 | { | |
461 | struct nct7802_data *data = dev_get_drvdata(dev); | |
462 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
463 | int bit = sattr->index; | |
464 | unsigned int val; | |
465 | int ret; | |
466 | ||
467 | ret = regmap_read(data->regmap, sattr->nr, &val); | |
468 | if (ret < 0) | |
469 | return ret; | |
470 | ||
471 | return sprintf(buf, "%u\n", !!(val & (1 << bit))); | |
472 | } | |
473 | ||
474 | static ssize_t | |
4aabaf30 | 475 | beep_show(struct device *dev, struct device_attribute *attr, char *buf) |
3434f378 GR |
476 | { |
477 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
478 | struct nct7802_data *data = dev_get_drvdata(dev); | |
479 | unsigned int regval; | |
480 | int err; | |
481 | ||
482 | err = regmap_read(data->regmap, sattr->nr, ®val); | |
483 | if (err) | |
484 | return err; | |
485 | ||
486 | return sprintf(buf, "%u\n", !!(regval & (1 << sattr->index))); | |
487 | } | |
488 | ||
489 | static ssize_t | |
4aabaf30 | 490 | beep_store(struct device *dev, struct device_attribute *attr, const char *buf, |
3434f378 GR |
491 | size_t count) |
492 | { | |
493 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
494 | struct nct7802_data *data = dev_get_drvdata(dev); | |
495 | unsigned long val; | |
496 | int err; | |
497 | ||
498 | err = kstrtoul(buf, 10, &val); | |
499 | if (err < 0) | |
500 | return err; | |
501 | if (val > 1) | |
502 | return -EINVAL; | |
503 | ||
504 | err = regmap_update_bits(data->regmap, sattr->nr, 1 << sattr->index, | |
505 | val ? 1 << sattr->index : 0); | |
506 | return err ? : count; | |
507 | } | |
508 | ||
4aabaf30 GR |
509 | static SENSOR_DEVICE_ATTR_RW(temp1_type, temp_type, 0); |
510 | static SENSOR_DEVICE_ATTR_2_RO(temp1_input, temp, 0x01, REG_TEMP_LSB); | |
511 | static SENSOR_DEVICE_ATTR_2_RW(temp1_min, temp, 0x31, 0); | |
512 | static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp, 0x30, 0); | |
513 | static SENSOR_DEVICE_ATTR_2_RW(temp1_crit, temp, 0x3a, 0); | |
514 | ||
515 | static SENSOR_DEVICE_ATTR_RW(temp2_type, temp_type, 1); | |
516 | static SENSOR_DEVICE_ATTR_2_RO(temp2_input, temp, 0x02, REG_TEMP_LSB); | |
517 | static SENSOR_DEVICE_ATTR_2_RW(temp2_min, temp, 0x33, 0); | |
518 | static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp, 0x32, 0); | |
519 | static SENSOR_DEVICE_ATTR_2_RW(temp2_crit, temp, 0x3b, 0); | |
520 | ||
521 | static SENSOR_DEVICE_ATTR_RW(temp3_type, temp_type, 2); | |
522 | static SENSOR_DEVICE_ATTR_2_RO(temp3_input, temp, 0x03, REG_TEMP_LSB); | |
523 | static SENSOR_DEVICE_ATTR_2_RW(temp3_min, temp, 0x35, 0); | |
524 | static SENSOR_DEVICE_ATTR_2_RW(temp3_max, temp, 0x34, 0); | |
525 | static SENSOR_DEVICE_ATTR_2_RW(temp3_crit, temp, 0x3c, 0); | |
526 | ||
527 | static SENSOR_DEVICE_ATTR_2_RO(temp4_input, temp, 0x04, 0); | |
528 | static SENSOR_DEVICE_ATTR_2_RW(temp4_min, temp, 0x37, 0); | |
529 | static SENSOR_DEVICE_ATTR_2_RW(temp4_max, temp, 0x36, 0); | |
530 | static SENSOR_DEVICE_ATTR_2_RW(temp4_crit, temp, 0x3d, 0); | |
531 | ||
532 | static SENSOR_DEVICE_ATTR_2_RO(temp5_input, temp, 0x06, REG_TEMP_PECI_LSB); | |
533 | static SENSOR_DEVICE_ATTR_2_RW(temp5_min, temp, 0x39, 0); | |
534 | static SENSOR_DEVICE_ATTR_2_RW(temp5_max, temp, 0x38, 0); | |
535 | static SENSOR_DEVICE_ATTR_2_RW(temp5_crit, temp, 0x3e, 0); | |
536 | ||
537 | static SENSOR_DEVICE_ATTR_2_RO(temp6_input, temp, 0x07, REG_TEMP_PECI_LSB); | |
538 | ||
539 | static SENSOR_DEVICE_ATTR_2_RO(temp1_min_alarm, alarm, 0x18, 0); | |
540 | static SENSOR_DEVICE_ATTR_2_RO(temp2_min_alarm, alarm, 0x18, 1); | |
541 | static SENSOR_DEVICE_ATTR_2_RO(temp3_min_alarm, alarm, 0x18, 2); | |
542 | static SENSOR_DEVICE_ATTR_2_RO(temp4_min_alarm, alarm, 0x18, 3); | |
543 | static SENSOR_DEVICE_ATTR_2_RO(temp5_min_alarm, alarm, 0x18, 4); | |
544 | ||
545 | static SENSOR_DEVICE_ATTR_2_RO(temp1_max_alarm, alarm, 0x19, 0); | |
546 | static SENSOR_DEVICE_ATTR_2_RO(temp2_max_alarm, alarm, 0x19, 1); | |
547 | static SENSOR_DEVICE_ATTR_2_RO(temp3_max_alarm, alarm, 0x19, 2); | |
548 | static SENSOR_DEVICE_ATTR_2_RO(temp4_max_alarm, alarm, 0x19, 3); | |
549 | static SENSOR_DEVICE_ATTR_2_RO(temp5_max_alarm, alarm, 0x19, 4); | |
550 | ||
551 | static SENSOR_DEVICE_ATTR_2_RO(temp1_crit_alarm, alarm, 0x1b, 0); | |
552 | static SENSOR_DEVICE_ATTR_2_RO(temp2_crit_alarm, alarm, 0x1b, 1); | |
553 | static SENSOR_DEVICE_ATTR_2_RO(temp3_crit_alarm, alarm, 0x1b, 2); | |
554 | static SENSOR_DEVICE_ATTR_2_RO(temp4_crit_alarm, alarm, 0x1b, 3); | |
555 | static SENSOR_DEVICE_ATTR_2_RO(temp5_crit_alarm, alarm, 0x1b, 4); | |
556 | ||
557 | static SENSOR_DEVICE_ATTR_2_RO(temp1_fault, alarm, 0x17, 0); | |
558 | static SENSOR_DEVICE_ATTR_2_RO(temp2_fault, alarm, 0x17, 1); | |
559 | static SENSOR_DEVICE_ATTR_2_RO(temp3_fault, alarm, 0x17, 2); | |
560 | ||
561 | static SENSOR_DEVICE_ATTR_2_RW(temp1_beep, beep, 0x5c, 0); | |
562 | static SENSOR_DEVICE_ATTR_2_RW(temp2_beep, beep, 0x5c, 1); | |
563 | static SENSOR_DEVICE_ATTR_2_RW(temp3_beep, beep, 0x5c, 2); | |
564 | static SENSOR_DEVICE_ATTR_2_RW(temp4_beep, beep, 0x5c, 3); | |
565 | static SENSOR_DEVICE_ATTR_2_RW(temp5_beep, beep, 0x5c, 4); | |
566 | static SENSOR_DEVICE_ATTR_2_RW(temp6_beep, beep, 0x5c, 5); | |
3434f378 GR |
567 | |
568 | static struct attribute *nct7802_temp_attrs[] = { | |
fcdc5739 | 569 | &sensor_dev_attr_temp1_type.dev_attr.attr, |
3434f378 GR |
570 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
571 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
572 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
573 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
574 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, | |
575 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, | |
576 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, | |
577 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
578 | &sensor_dev_attr_temp1_beep.dev_attr.attr, | |
579 | ||
fcdc5739 CS |
580 | &sensor_dev_attr_temp2_type.dev_attr.attr, /* 10 */ |
581 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
3434f378 GR |
582 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
583 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
584 | &sensor_dev_attr_temp2_crit.dev_attr.attr, | |
585 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, | |
586 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, | |
587 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, | |
588 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
589 | &sensor_dev_attr_temp2_beep.dev_attr.attr, | |
590 | ||
fcdc5739 CS |
591 | &sensor_dev_attr_temp3_type.dev_attr.attr, /* 20 */ |
592 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
3434f378 GR |
593 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
594 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
595 | &sensor_dev_attr_temp3_crit.dev_attr.attr, | |
596 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, | |
597 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, | |
598 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, | |
599 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
600 | &sensor_dev_attr_temp3_beep.dev_attr.attr, | |
601 | ||
fcdc5739 | 602 | &sensor_dev_attr_temp4_input.dev_attr.attr, /* 30 */ |
3434f378 GR |
603 | &sensor_dev_attr_temp4_min.dev_attr.attr, |
604 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
605 | &sensor_dev_attr_temp4_crit.dev_attr.attr, | |
606 | &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, | |
607 | &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, | |
608 | &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, | |
609 | &sensor_dev_attr_temp4_beep.dev_attr.attr, | |
610 | ||
fcdc5739 | 611 | &sensor_dev_attr_temp5_input.dev_attr.attr, /* 38 */ |
3434f378 GR |
612 | &sensor_dev_attr_temp5_min.dev_attr.attr, |
613 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
614 | &sensor_dev_attr_temp5_crit.dev_attr.attr, | |
615 | &sensor_dev_attr_temp5_min_alarm.dev_attr.attr, | |
616 | &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, | |
617 | &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, | |
618 | &sensor_dev_attr_temp5_beep.dev_attr.attr, | |
619 | ||
fcdc5739 | 620 | &sensor_dev_attr_temp6_input.dev_attr.attr, /* 46 */ |
3434f378 GR |
621 | &sensor_dev_attr_temp6_beep.dev_attr.attr, |
622 | ||
623 | NULL | |
624 | }; | |
625 | ||
626 | static umode_t nct7802_temp_is_visible(struct kobject *kobj, | |
627 | struct attribute *attr, int index) | |
628 | { | |
629 | struct device *dev = container_of(kobj, struct device, kobj); | |
630 | struct nct7802_data *data = dev_get_drvdata(dev); | |
631 | unsigned int reg; | |
632 | int err; | |
633 | ||
634 | err = regmap_read(data->regmap, REG_MODE, ®); | |
635 | if (err < 0) | |
636 | return 0; | |
637 | ||
fcdc5739 | 638 | if (index < 10 && |
3434f378 GR |
639 | (reg & 03) != 0x01 && (reg & 0x03) != 0x02) /* RD1 */ |
640 | return 0; | |
fcdc5739 CS |
641 | |
642 | if (index >= 10 && index < 20 && | |
3434f378 GR |
643 | (reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08) /* RD2 */ |
644 | return 0; | |
fcdc5739 | 645 | if (index >= 20 && index < 30 && (reg & 0x30) != 0x20) /* RD3 */ |
3434f378 | 646 | return 0; |
fcdc5739 CS |
647 | |
648 | if (index >= 30 && index < 38) /* local */ | |
3434f378 GR |
649 | return attr->mode; |
650 | ||
651 | err = regmap_read(data->regmap, REG_PECI_ENABLE, ®); | |
652 | if (err < 0) | |
653 | return 0; | |
654 | ||
fcdc5739 | 655 | if (index >= 38 && index < 46 && !(reg & 0x01)) /* PECI 0 */ |
3434f378 GR |
656 | return 0; |
657 | ||
fcdc5739 | 658 | if (index >= 0x46 && (!(reg & 0x02))) /* PECI 1 */ |
3434f378 GR |
659 | return 0; |
660 | ||
661 | return attr->mode; | |
662 | } | |
663 | ||
afc680f3 | 664 | static const struct attribute_group nct7802_temp_group = { |
3434f378 GR |
665 | .attrs = nct7802_temp_attrs, |
666 | .is_visible = nct7802_temp_is_visible, | |
667 | }; | |
668 | ||
4aabaf30 GR |
669 | static SENSOR_DEVICE_ATTR_2_RO(in0_input, in, 0, 0); |
670 | static SENSOR_DEVICE_ATTR_2_RW(in0_min, in, 0, 1); | |
671 | static SENSOR_DEVICE_ATTR_2_RW(in0_max, in, 0, 2); | |
672 | static SENSOR_DEVICE_ATTR_2_RO(in0_alarm, alarm, 0x1e, 3); | |
673 | static SENSOR_DEVICE_ATTR_2_RW(in0_beep, beep, 0x5a, 3); | |
674 | ||
675 | static SENSOR_DEVICE_ATTR_2_RO(in1_input, in, 1, 0); | |
676 | ||
677 | static SENSOR_DEVICE_ATTR_2_RO(in2_input, in, 2, 0); | |
678 | static SENSOR_DEVICE_ATTR_2_RW(in2_min, in, 2, 1); | |
679 | static SENSOR_DEVICE_ATTR_2_RW(in2_max, in, 2, 2); | |
680 | static SENSOR_DEVICE_ATTR_2_RO(in2_alarm, alarm, 0x1e, 0); | |
681 | static SENSOR_DEVICE_ATTR_2_RW(in2_beep, beep, 0x5a, 0); | |
682 | ||
683 | static SENSOR_DEVICE_ATTR_2_RO(in3_input, in, 3, 0); | |
684 | static SENSOR_DEVICE_ATTR_2_RW(in3_min, in, 3, 1); | |
685 | static SENSOR_DEVICE_ATTR_2_RW(in3_max, in, 3, 2); | |
686 | static SENSOR_DEVICE_ATTR_2_RO(in3_alarm, alarm, 0x1e, 1); | |
687 | static SENSOR_DEVICE_ATTR_2_RW(in3_beep, beep, 0x5a, 1); | |
688 | ||
689 | static SENSOR_DEVICE_ATTR_2_RO(in4_input, in, 4, 0); | |
690 | static SENSOR_DEVICE_ATTR_2_RW(in4_min, in, 4, 1); | |
691 | static SENSOR_DEVICE_ATTR_2_RW(in4_max, in, 4, 2); | |
692 | static SENSOR_DEVICE_ATTR_2_RO(in4_alarm, alarm, 0x1e, 2); | |
693 | static SENSOR_DEVICE_ATTR_2_RW(in4_beep, beep, 0x5a, 2); | |
3434f378 GR |
694 | |
695 | static struct attribute *nct7802_in_attrs[] = { | |
696 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
697 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
698 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
699 | &sensor_dev_attr_in0_alarm.dev_attr.attr, | |
700 | &sensor_dev_attr_in0_beep.dev_attr.attr, | |
701 | ||
702 | &sensor_dev_attr_in1_input.dev_attr.attr, /* 5 */ | |
703 | ||
704 | &sensor_dev_attr_in2_input.dev_attr.attr, /* 6 */ | |
705 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
706 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
707 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
708 | &sensor_dev_attr_in2_beep.dev_attr.attr, | |
709 | ||
710 | &sensor_dev_attr_in3_input.dev_attr.attr, /* 11 */ | |
711 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
712 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
713 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
714 | &sensor_dev_attr_in3_beep.dev_attr.attr, | |
715 | ||
716 | &sensor_dev_attr_in4_input.dev_attr.attr, /* 17 */ | |
717 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
718 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
719 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
720 | &sensor_dev_attr_in4_beep.dev_attr.attr, | |
721 | ||
722 | NULL, | |
723 | }; | |
724 | ||
725 | static umode_t nct7802_in_is_visible(struct kobject *kobj, | |
726 | struct attribute *attr, int index) | |
727 | { | |
728 | struct device *dev = container_of(kobj, struct device, kobj); | |
729 | struct nct7802_data *data = dev_get_drvdata(dev); | |
730 | unsigned int reg; | |
731 | int err; | |
732 | ||
733 | if (index < 6) /* VCC, VCORE */ | |
734 | return attr->mode; | |
735 | ||
736 | err = regmap_read(data->regmap, REG_MODE, ®); | |
737 | if (err < 0) | |
738 | return 0; | |
739 | ||
740 | if (index >= 6 && index < 11 && (reg & 0x03) != 0x03) /* VSEN1 */ | |
741 | return 0; | |
742 | if (index >= 11 && index < 17 && (reg & 0x0c) != 0x0c) /* VSEN2 */ | |
743 | return 0; | |
744 | if (index >= 17 && (reg & 0x30) != 0x30) /* VSEN3 */ | |
745 | return 0; | |
746 | ||
747 | return attr->mode; | |
748 | } | |
749 | ||
afc680f3 | 750 | static const struct attribute_group nct7802_in_group = { |
3434f378 GR |
751 | .attrs = nct7802_in_attrs, |
752 | .is_visible = nct7802_in_is_visible, | |
753 | }; | |
754 | ||
4aabaf30 GR |
755 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0x10); |
756 | static SENSOR_DEVICE_ATTR_2_RW(fan1_min, fan_min, 0x49, 0x4c); | |
757 | static SENSOR_DEVICE_ATTR_2_RO(fan1_alarm, alarm, 0x1a, 0); | |
758 | static SENSOR_DEVICE_ATTR_2_RW(fan1_beep, beep, 0x5b, 0); | |
759 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 0x11); | |
760 | static SENSOR_DEVICE_ATTR_2_RW(fan2_min, fan_min, 0x4a, 0x4d); | |
761 | static SENSOR_DEVICE_ATTR_2_RO(fan2_alarm, alarm, 0x1a, 1); | |
762 | static SENSOR_DEVICE_ATTR_2_RW(fan2_beep, beep, 0x5b, 1); | |
763 | static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 0x12); | |
764 | static SENSOR_DEVICE_ATTR_2_RW(fan3_min, fan_min, 0x4b, 0x4e); | |
765 | static SENSOR_DEVICE_ATTR_2_RO(fan3_alarm, alarm, 0x1a, 2); | |
766 | static SENSOR_DEVICE_ATTR_2_RW(fan3_beep, beep, 0x5b, 2); | |
3434f378 | 767 | |
876420e0 | 768 | /* 7.2.89 Fan Control Output Type */ |
4aabaf30 GR |
769 | static SENSOR_DEVICE_ATTR_RO(pwm1_mode, pwm_mode, 0); |
770 | static SENSOR_DEVICE_ATTR_RO(pwm2_mode, pwm_mode, 1); | |
771 | static SENSOR_DEVICE_ATTR_RO(pwm3_mode, pwm_mode, 2); | |
876420e0 | 772 | |
ea33597c | 773 | /* 7.2.91... Fan Control Output Value */ |
4aabaf30 GR |
774 | static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, REG_PWM(0)); |
775 | static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, REG_PWM(1)); | |
776 | static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, REG_PWM(2)); | |
ea33597c | 777 | |
5102f022 | 778 | /* 7.2.95... Temperature to Fan mapping Relationships Register */ |
4aabaf30 GR |
779 | static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0); |
780 | static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1); | |
781 | static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_enable, 2); | |
5102f022 | 782 | |
3434f378 GR |
783 | static struct attribute *nct7802_fan_attrs[] = { |
784 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
785 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
786 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
787 | &sensor_dev_attr_fan1_beep.dev_attr.attr, | |
788 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
789 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
790 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
791 | &sensor_dev_attr_fan2_beep.dev_attr.attr, | |
792 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
793 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
794 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
795 | &sensor_dev_attr_fan3_beep.dev_attr.attr, | |
796 | ||
797 | NULL | |
798 | }; | |
799 | ||
800 | static umode_t nct7802_fan_is_visible(struct kobject *kobj, | |
801 | struct attribute *attr, int index) | |
802 | { | |
803 | struct device *dev = container_of(kobj, struct device, kobj); | |
804 | struct nct7802_data *data = dev_get_drvdata(dev); | |
805 | int fan = index / 4; /* 4 attributes per fan */ | |
806 | unsigned int reg; | |
807 | int err; | |
808 | ||
809 | err = regmap_read(data->regmap, REG_FAN_ENABLE, ®); | |
810 | if (err < 0 || !(reg & (1 << fan))) | |
811 | return 0; | |
812 | ||
813 | return attr->mode; | |
814 | } | |
815 | ||
afc680f3 | 816 | static const struct attribute_group nct7802_fan_group = { |
3434f378 GR |
817 | .attrs = nct7802_fan_attrs, |
818 | .is_visible = nct7802_fan_is_visible, | |
819 | }; | |
820 | ||
ea33597c | 821 | static struct attribute *nct7802_pwm_attrs[] = { |
5102f022 | 822 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
876420e0 | 823 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, |
ea33597c | 824 | &sensor_dev_attr_pwm1.dev_attr.attr, |
5102f022 | 825 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
876420e0 | 826 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, |
ea33597c | 827 | &sensor_dev_attr_pwm2.dev_attr.attr, |
5102f022 | 828 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
876420e0 | 829 | &sensor_dev_attr_pwm3_mode.dev_attr.attr, |
ea33597c CS |
830 | &sensor_dev_attr_pwm3.dev_attr.attr, |
831 | NULL | |
832 | }; | |
833 | ||
afc680f3 | 834 | static const struct attribute_group nct7802_pwm_group = { |
ea33597c CS |
835 | .attrs = nct7802_pwm_attrs, |
836 | }; | |
837 | ||
1c6e8f6b | 838 | /* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */ |
4aabaf30 GR |
839 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, temp, 0x80, 0); |
840 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, temp, 0x81, 0); | |
841 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, temp, 0x82, 0); | |
842 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, temp, 0x83, 0); | |
843 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, temp, 0x84, 0); | |
1c6e8f6b CS |
844 | |
845 | /* 7.2.120... 0x85-0x88 PWM (Y-axis) transition */ | |
4aabaf30 GR |
846 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point1_pwm, pwm, 0x85); |
847 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point2_pwm, pwm, 0x86); | |
848 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point3_pwm, pwm, 0x87); | |
849 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point4_pwm, pwm, 0x88); | |
850 | static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point5_pwm, pwm, 0); | |
1c6e8f6b CS |
851 | |
852 | /* 7.2.124 Table 2 X-axis Transition Point 1 Register */ | |
4aabaf30 GR |
853 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, temp, 0x90, 0); |
854 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, temp, 0x91, 0); | |
855 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, temp, 0x92, 0); | |
856 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, temp, 0x93, 0); | |
857 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, temp, 0x94, 0); | |
1c6e8f6b CS |
858 | |
859 | /* 7.2.129 Table 2 Y-axis Transition Point 1 Register */ | |
4aabaf30 GR |
860 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point1_pwm, pwm, 0x95); |
861 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point2_pwm, pwm, 0x96); | |
862 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point3_pwm, pwm, 0x97); | |
863 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point4_pwm, pwm, 0x98); | |
864 | static SENSOR_DEVICE_ATTR_RO(pwm2_auto_point5_pwm, pwm, 0); | |
1c6e8f6b CS |
865 | |
866 | /* 7.2.133 Table 3 X-axis Transition Point 1 Register */ | |
4aabaf30 GR |
867 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, temp, 0xA0, 0); |
868 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, temp, 0xA1, 0); | |
869 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, temp, 0xA2, 0); | |
870 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, temp, 0xA3, 0); | |
871 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, temp, 0xA4, 0); | |
1c6e8f6b CS |
872 | |
873 | /* 7.2.138 Table 3 Y-axis Transition Point 1 Register */ | |
4aabaf30 GR |
874 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point1_pwm, pwm, 0xA5); |
875 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point2_pwm, pwm, 0xA6); | |
876 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point3_pwm, pwm, 0xA7); | |
877 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point4_pwm, pwm, 0xA8); | |
878 | static SENSOR_DEVICE_ATTR_RO(pwm3_auto_point5_pwm, pwm, 0); | |
1c6e8f6b CS |
879 | |
880 | static struct attribute *nct7802_auto_point_attrs[] = { | |
881 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
882 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
883 | &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, | |
884 | &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, | |
885 | &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr, | |
886 | ||
887 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
888 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
889 | &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, | |
890 | &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, | |
891 | &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr, | |
892 | ||
893 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
894 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
895 | &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, | |
896 | &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, | |
897 | &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr, | |
898 | ||
899 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
900 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
901 | &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, | |
902 | &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, | |
903 | &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr, | |
904 | ||
905 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
906 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
907 | &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, | |
908 | &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, | |
909 | &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr, | |
910 | ||
911 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
912 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
913 | &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, | |
914 | &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, | |
915 | &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr, | |
916 | ||
917 | NULL | |
918 | }; | |
919 | ||
afc680f3 | 920 | static const struct attribute_group nct7802_auto_point_group = { |
1c6e8f6b CS |
921 | .attrs = nct7802_auto_point_attrs, |
922 | }; | |
923 | ||
3434f378 GR |
924 | static const struct attribute_group *nct7802_groups[] = { |
925 | &nct7802_temp_group, | |
926 | &nct7802_in_group, | |
927 | &nct7802_fan_group, | |
ea33597c | 928 | &nct7802_pwm_group, |
1c6e8f6b | 929 | &nct7802_auto_point_group, |
3434f378 GR |
930 | NULL |
931 | }; | |
932 | ||
933 | static int nct7802_detect(struct i2c_client *client, | |
934 | struct i2c_board_info *info) | |
935 | { | |
936 | int reg; | |
937 | ||
938 | /* | |
939 | * Chip identification registers are only available in bank 0, | |
940 | * so only attempt chip detection if bank 0 is selected | |
941 | */ | |
942 | reg = i2c_smbus_read_byte_data(client, REG_BANK); | |
943 | if (reg != 0x00) | |
944 | return -ENODEV; | |
945 | ||
946 | reg = i2c_smbus_read_byte_data(client, REG_VENDOR_ID); | |
947 | if (reg != 0x50) | |
948 | return -ENODEV; | |
949 | ||
950 | reg = i2c_smbus_read_byte_data(client, REG_CHIP_ID); | |
951 | if (reg != 0xc3) | |
952 | return -ENODEV; | |
953 | ||
954 | reg = i2c_smbus_read_byte_data(client, REG_VERSION_ID); | |
955 | if (reg < 0 || (reg & 0xf0) != 0x20) | |
956 | return -ENODEV; | |
957 | ||
958 | /* Also validate lower bits of voltage and temperature registers */ | |
959 | reg = i2c_smbus_read_byte_data(client, REG_TEMP_LSB); | |
960 | if (reg < 0 || (reg & 0x1f)) | |
961 | return -ENODEV; | |
962 | ||
963 | reg = i2c_smbus_read_byte_data(client, REG_TEMP_PECI_LSB); | |
964 | if (reg < 0 || (reg & 0x3f)) | |
965 | return -ENODEV; | |
966 | ||
967 | reg = i2c_smbus_read_byte_data(client, REG_VOLTAGE_LOW); | |
968 | if (reg < 0 || (reg & 0x3f)) | |
969 | return -ENODEV; | |
970 | ||
971 | strlcpy(info->type, "nct7802", I2C_NAME_SIZE); | |
972 | return 0; | |
973 | } | |
974 | ||
975 | static bool nct7802_regmap_is_volatile(struct device *dev, unsigned int reg) | |
976 | { | |
1c6e8f6b CS |
977 | return (reg != REG_BANK && reg <= 0x20) || |
978 | (reg >= REG_PWM(0) && reg <= REG_PWM(2)); | |
3434f378 GR |
979 | } |
980 | ||
3c535bca | 981 | static const struct regmap_config nct7802_regmap_config = { |
3434f378 GR |
982 | .reg_bits = 8, |
983 | .val_bits = 8, | |
984 | .cache_type = REGCACHE_RBTREE, | |
985 | .volatile_reg = nct7802_regmap_is_volatile, | |
986 | }; | |
987 | ||
988 | static int nct7802_init_chip(struct nct7802_data *data) | |
989 | { | |
990 | int err; | |
991 | ||
992 | /* Enable ADC */ | |
993 | err = regmap_update_bits(data->regmap, REG_START, 0x01, 0x01); | |
994 | if (err) | |
995 | return err; | |
996 | ||
997 | /* Enable local temperature sensor */ | |
998 | err = regmap_update_bits(data->regmap, REG_MODE, 0x40, 0x40); | |
999 | if (err) | |
1000 | return err; | |
1001 | ||
1002 | /* Enable Vcore and VCC voltage monitoring */ | |
1003 | return regmap_update_bits(data->regmap, REG_VMON_ENABLE, 0x03, 0x03); | |
1004 | } | |
1005 | ||
1006 | static int nct7802_probe(struct i2c_client *client, | |
1007 | const struct i2c_device_id *id) | |
1008 | { | |
1009 | struct device *dev = &client->dev; | |
1010 | struct nct7802_data *data; | |
1011 | struct device *hwmon_dev; | |
1012 | int ret; | |
1013 | ||
1014 | data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); | |
1015 | if (data == NULL) | |
1016 | return -ENOMEM; | |
1017 | ||
1018 | data->regmap = devm_regmap_init_i2c(client, &nct7802_regmap_config); | |
1019 | if (IS_ERR(data->regmap)) | |
1020 | return PTR_ERR(data->regmap); | |
1021 | ||
1022 | mutex_init(&data->access_lock); | |
1023 | ||
1024 | ret = nct7802_init_chip(data); | |
1025 | if (ret < 0) | |
1026 | return ret; | |
1027 | ||
1028 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, | |
1029 | data, | |
1030 | nct7802_groups); | |
1031 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
1032 | } | |
1033 | ||
1034 | static const unsigned short nct7802_address_list[] = { | |
1035 | 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END | |
1036 | }; | |
1037 | ||
1038 | static const struct i2c_device_id nct7802_idtable[] = { | |
1039 | { "nct7802", 0 }, | |
1040 | { } | |
1041 | }; | |
1042 | MODULE_DEVICE_TABLE(i2c, nct7802_idtable); | |
1043 | ||
1044 | static struct i2c_driver nct7802_driver = { | |
1045 | .class = I2C_CLASS_HWMON, | |
1046 | .driver = { | |
1047 | .name = DRVNAME, | |
1048 | }, | |
1049 | .detect = nct7802_detect, | |
1050 | .probe = nct7802_probe, | |
1051 | .id_table = nct7802_idtable, | |
1052 | .address_list = nct7802_address_list, | |
1053 | }; | |
1054 | ||
1055 | module_i2c_driver(nct7802_driver); | |
1056 | ||
1057 | MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); | |
1058 | MODULE_DESCRIPTION("NCT7802Y Hardware Monitoring Driver"); | |
1059 | MODULE_LICENSE("GPL v2"); |