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driver core: remove drivers/base/sys.c and include/linux/sysdev.h
[zen-stable.git] / drivers / hwmon / f75375s.c
blobeedf574ab539c9108c7dec18e16e57994f9cee12
1 /*
2 * f75375s.c - driver for the Fintek F75375/SP, F75373 and
3 * F75387SG/RG hardware monitoring features
4 * Copyright (C) 2006-2007 Riku Voipio
5 *
6 * Datasheets available at:
7 *
8 * f75375:
9 * http://www.fintek.com.tw/files/productfiles/F75375_V026P.pdf
10 *
11 * f75373:
12 * http://www.fintek.com.tw/files/productfiles/F75373_V025P.pdf
13 *
14 * f75387:
15 * http://www.fintek.com.tw/files/productfiles/F75387_V027P.pdf
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 *
31 */
32
33 #include <linux/module.h>
34 #include <linux/jiffies.h>
35 #include <linux/hwmon.h>
36 #include <linux/hwmon-sysfs.h>
37 #include <linux/i2c.h>
38 #include <linux/err.h>
39 #include <linux/mutex.h>
40 #include <linux/f75375s.h>
41 #include <linux/slab.h>
42
43 /* Addresses to scan */
44 static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
45
46 enum chips { f75373, f75375, f75387 };
47
48 /* Fintek F75375 registers */
49 #define F75375_REG_CONFIG0 0x0
50 #define F75375_REG_CONFIG1 0x1
51 #define F75375_REG_CONFIG2 0x2
52 #define F75375_REG_CONFIG3 0x3
53 #define F75375_REG_ADDR 0x4
54 #define F75375_REG_INTR 0x31
55 #define F75375_CHIP_ID 0x5A
56 #define F75375_REG_VERSION 0x5C
57 #define F75375_REG_VENDOR 0x5D
58 #define F75375_REG_FAN_TIMER 0x60
59
60 #define F75375_REG_VOLT(nr) (0x10 + (nr))
61 #define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2)
62 #define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2)
63
64 #define F75375_REG_TEMP(nr) (0x14 + (nr))
65 #define F75387_REG_TEMP11_LSB(nr) (0x1a + (nr))
66 #define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2)
67 #define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2)
68
69 #define F75375_REG_FAN(nr) (0x16 + (nr) * 2)
70 #define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2)
71 #define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10)
72 #define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10)
73 #define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10)
74
75 #define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10)
76 #define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
77 #define F75375_REG_FAN_B_SPEED(nr, step) \
78 ((0xA5 + (nr) * 0x10) + (step) * 2)
79
80 #define F75375_REG_PWM1_RAISE_DUTY 0x69
81 #define F75375_REG_PWM2_RAISE_DUTY 0x6A
82 #define F75375_REG_PWM1_DROP_DUTY 0x6B
83 #define F75375_REG_PWM2_DROP_DUTY 0x6C
84
85 #define F75375_FAN_CTRL_LINEAR(nr) (4 + nr)
86 #define F75387_FAN_CTRL_LINEAR(nr) (1 + ((nr) * 4))
87 #define FAN_CTRL_MODE(nr) (4 + ((nr) * 2))
88 #define F75387_FAN_DUTY_MODE(nr) (2 + ((nr) * 4))
89 #define F75387_FAN_MANU_MODE(nr) ((nr) * 4)
90
91 /*
92 * Data structures and manipulation thereof
93 */
94
95 struct f75375_data {
96 unsigned short addr;
97 struct device *hwmon_dev;
98
99 const char *name;
100 int kind;
101 struct mutex update_lock; /* protect register access */
102 char valid;
103 unsigned long last_updated; /* In jiffies */
104 unsigned long last_limits; /* In jiffies */
105
106 /* Register values */
107 u8 in[4];
108 u8 in_max[4];
109 u8 in_min[4];
110 u16 fan[2];
111 u16 fan_min[2];
112 u16 fan_max[2];
113 u16 fan_target[2];
114 u8 fan_timer;
115 u8 pwm[2];
116 u8 pwm_mode[2];
117 u8 pwm_enable[2];
118 /*
119 * f75387: For remote temperature reading, it uses signed 11-bit
120 * values with LSB = 0.125 degree Celsius, left-justified in 16-bit
121 * registers. For original 8-bit temp readings, the LSB just is 0.
122 */
123 s16 temp11[2];
124 s8 temp_high[2];
125 s8 temp_max_hyst[2];
126 };
127
128 static int f75375_detect(struct i2c_client *client,
129 struct i2c_board_info *info);
130 static int f75375_probe(struct i2c_client *client,
131 const struct i2c_device_id *id);
132 static int f75375_remove(struct i2c_client *client);
133
134 static const struct i2c_device_id f75375_id[] = {
135 { "f75373", f75373 },
136 { "f75375", f75375 },
137 { "f75387", f75387 },
138 { }
139 };
140 MODULE_DEVICE_TABLE(i2c, f75375_id);
141
142 static struct i2c_driver f75375_driver = {
143 .class = I2C_CLASS_HWMON,
144 .driver = {
145 .name = "f75375",
146 },
147 .probe = f75375_probe,
148 .remove = f75375_remove,
149 .id_table = f75375_id,
150 .detect = f75375_detect,
151 .address_list = normal_i2c,
152 };
153
154 static inline int f75375_read8(struct i2c_client *client, u8 reg)
155 {
156 return i2c_smbus_read_byte_data(client, reg);
157 }
158
159 /* in most cases, should be called while holding update_lock */
160 static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
161 {
162 return (i2c_smbus_read_byte_data(client, reg) << 8)
163 | i2c_smbus_read_byte_data(client, reg + 1);
164 }
165
166 static inline void f75375_write8(struct i2c_client *client, u8 reg,
167 u8 value)
168 {
169 i2c_smbus_write_byte_data(client, reg, value);
170 }
171
172 static inline void f75375_write16(struct i2c_client *client, u8 reg,
173 u16 value)
174 {
175 int err = i2c_smbus_write_byte_data(client, reg, (value << 8));
176 if (err)
177 return;
178 i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
179 }
180
181 static struct f75375_data *f75375_update_device(struct device *dev)
182 {
183 struct i2c_client *client = to_i2c_client(dev);
184 struct f75375_data *data = i2c_get_clientdata(client);
185 int nr;
186
187 mutex_lock(&data->update_lock);
188
189 /* Limit registers cache is refreshed after 60 seconds */
190 if (time_after(jiffies, data->last_limits + 60 * HZ)
191 || !data->valid) {
192 for (nr = 0; nr < 2; nr++) {
193 data->temp_high[nr] =
194 f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
195 data->temp_max_hyst[nr] =
196 f75375_read8(client, F75375_REG_TEMP_HYST(nr));
197 data->fan_max[nr] =
198 f75375_read16(client, F75375_REG_FAN_FULL(nr));
199 data->fan_min[nr] =
200 f75375_read16(client, F75375_REG_FAN_MIN(nr));
201 data->fan_target[nr] =
202 f75375_read16(client, F75375_REG_FAN_EXP(nr));
203 data->pwm[nr] = f75375_read8(client,
204 F75375_REG_FAN_PWM_DUTY(nr));
205
206 }
207 for (nr = 0; nr < 4; nr++) {
208 data->in_max[nr] =
209 f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
210 data->in_min[nr] =
211 f75375_read8(client, F75375_REG_VOLT_LOW(nr));
212 }
213 data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
214 data->last_limits = jiffies;
215 }
216
217 /* Measurement registers cache is refreshed after 2 second */
218 if (time_after(jiffies, data->last_updated + 2 * HZ)
219 || !data->valid) {
220 for (nr = 0; nr < 2; nr++) {
221 /* assign MSB, therefore shift it by 8 bits */
222 data->temp11[nr] =
223 f75375_read8(client, F75375_REG_TEMP(nr)) << 8;
224 if (data->kind == f75387)
225 /* merge F75387's temperature LSB (11-bit) */
226 data->temp11[nr] |=
227 f75375_read8(client,
228 F75387_REG_TEMP11_LSB(nr));
229 data->fan[nr] =
230 f75375_read16(client, F75375_REG_FAN(nr));
231 }
232 for (nr = 0; nr < 4; nr++)
233 data->in[nr] =
234 f75375_read8(client, F75375_REG_VOLT(nr));
235
236 data->last_updated = jiffies;
237 data->valid = 1;
238 }
239
240 mutex_unlock(&data->update_lock);
241 return data;
242 }
243
244 static inline u16 rpm_from_reg(u16 reg)
245 {
246 if (reg == 0 || reg == 0xffff)
247 return 0;
248 return 1500000 / reg;
249 }
250
251 static inline u16 rpm_to_reg(int rpm)
252 {
253 if (rpm < 367 || rpm > 0xffff)
254 return 0xffff;
255 return 1500000 / rpm;
256 }
257
258 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
259 const char *buf, size_t count)
260 {
261 int nr = to_sensor_dev_attr(attr)->index;
262 struct i2c_client *client = to_i2c_client(dev);
263 struct f75375_data *data = i2c_get_clientdata(client);
264 unsigned long val;
265 int err;
266
267 err = kstrtoul(buf, 10, &val);
268 if (err < 0)
269 return err;
270
271 mutex_lock(&data->update_lock);
272 data->fan_min[nr] = rpm_to_reg(val);
273 f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
274 mutex_unlock(&data->update_lock);
275 return count;
276 }
277
278 static ssize_t set_fan_target(struct device *dev, struct device_attribute *attr,
279 const char *buf, size_t count)
280 {
281 int nr = to_sensor_dev_attr(attr)->index;
282 struct i2c_client *client = to_i2c_client(dev);
283 struct f75375_data *data = i2c_get_clientdata(client);
284 unsigned long val;
285 int err;
286
287 err = kstrtoul(buf, 10, &val);
288 if (err < 0)
289 return err;
290
291 mutex_lock(&data->update_lock);
292 data->fan_target[nr] = rpm_to_reg(val);
293 f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_target[nr]);
294 mutex_unlock(&data->update_lock);
295 return count;
296 }
297
298 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
299 const char *buf, size_t count)
300 {
301 int nr = to_sensor_dev_attr(attr)->index;
302 struct i2c_client *client = to_i2c_client(dev);
303 struct f75375_data *data = i2c_get_clientdata(client);
304 unsigned long val;
305 int err;
306
307 err = kstrtoul(buf, 10, &val);
308 if (err < 0)
309 return err;
310
311 mutex_lock(&data->update_lock);
312 data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
313 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
314 mutex_unlock(&data->update_lock);
315 return count;
316 }
317
318 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
319 *attr, char *buf)
320 {
321 int nr = to_sensor_dev_attr(attr)->index;
322 struct f75375_data *data = f75375_update_device(dev);
323 return sprintf(buf, "%d\n", data->pwm_enable[nr]);
324 }
325
326 static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
327 {
328 struct f75375_data *data = i2c_get_clientdata(client);
329 u8 fanmode;
330
331 if (val < 0 || val > 3)
332 return -EINVAL;
333
334 fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
335 if (data->kind == f75387) {
336 /* clear each fanX_mode bit before setting them properly */
337 fanmode &= ~(1 << F75387_FAN_DUTY_MODE(nr));
338 fanmode &= ~(1 << F75387_FAN_MANU_MODE(nr));
339 switch (val) {
340 case 0: /* full speed */
341 fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
342 fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
343 data->pwm[nr] = 255;
344 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
345 data->pwm[nr]);
346 break;
347 case 1: /* PWM */
348 fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
349 fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
350 break;
351 case 2: /* AUTOMATIC*/
352 fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
353 break;
354 case 3: /* fan speed */
355 fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
356 break;
357 }
358 } else {
359 /* clear each fanX_mode bit before setting them properly */
360 fanmode &= ~(3 << FAN_CTRL_MODE(nr));
361 switch (val) {
362 case 0: /* full speed */
363 fanmode |= (3 << FAN_CTRL_MODE(nr));
364 data->pwm[nr] = 255;
365 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
366 data->pwm[nr]);
367 break;
368 case 1: /* PWM */
369 fanmode |= (3 << FAN_CTRL_MODE(nr));
370 break;
371 case 2: /* AUTOMATIC*/
372 fanmode |= (2 << FAN_CTRL_MODE(nr));
373 break;
374 case 3: /* fan speed */
375 break;
376 }
377 }
378
379 f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
380 data->pwm_enable[nr] = val;
381 return 0;
382 }
383
384 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
385 const char *buf, size_t count)
386 {
387 int nr = to_sensor_dev_attr(attr)->index;
388 struct i2c_client *client = to_i2c_client(dev);
389 struct f75375_data *data = i2c_get_clientdata(client);
390 unsigned long val;
391 int err;
392
393 err = kstrtoul(buf, 10, &val);
394 if (err < 0)
395 return err;
396
397 mutex_lock(&data->update_lock);
398 err = set_pwm_enable_direct(client, nr, val);
399 mutex_unlock(&data->update_lock);
400 return err ? err : count;
401 }
402
403 static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
404 const char *buf, size_t count)
405 {
406 int nr = to_sensor_dev_attr(attr)->index;
407 struct i2c_client *client = to_i2c_client(dev);
408 struct f75375_data *data = i2c_get_clientdata(client);
409 unsigned long val;
410 int err;
411 u8 conf;
412 char reg, ctrl;
413
414 err = kstrtoul(buf, 10, &val);
415 if (err < 0)
416 return err;
417
418 if (!(val == 0 || val == 1))
419 return -EINVAL;
420
421 /* F75373 does not support DC (linear voltage) fan control mode */
422 if (data->kind == f75373 && val == 0)
423 return -EINVAL;
424
425 /* take care for different registers */
426 if (data->kind == f75387) {
427 reg = F75375_REG_FAN_TIMER;
428 ctrl = F75387_FAN_CTRL_LINEAR(nr);
429 } else {
430 reg = F75375_REG_CONFIG1;
431 ctrl = F75375_FAN_CTRL_LINEAR(nr);
432 }
433
434 mutex_lock(&data->update_lock);
435 conf = f75375_read8(client, reg);
436 conf &= ~(1 << ctrl);
437
438 if (val == 0)
439 conf |= (1 << ctrl);
440
441 f75375_write8(client, reg, conf);
442 data->pwm_mode[nr] = val;
443 mutex_unlock(&data->update_lock);
444 return count;
445 }
446
447 static ssize_t show_pwm(struct device *dev, struct device_attribute
448 *attr, char *buf)
449 {
450 int nr = to_sensor_dev_attr(attr)->index;
451 struct f75375_data *data = f75375_update_device(dev);
452 return sprintf(buf, "%d\n", data->pwm[nr]);
453 }
454
455 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
456 *attr, char *buf)
457 {
458 int nr = to_sensor_dev_attr(attr)->index;
459 struct f75375_data *data = f75375_update_device(dev);
460 return sprintf(buf, "%d\n", data->pwm_mode[nr]);
461 }
462
463 #define VOLT_FROM_REG(val) ((val) * 8)
464 #define VOLT_TO_REG(val) ((val) / 8)
465
466 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
467 char *buf)
468 {
469 int nr = to_sensor_dev_attr(attr)->index;
470 struct f75375_data *data = f75375_update_device(dev);
471 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
472 }
473
474 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
475 char *buf)
476 {
477 int nr = to_sensor_dev_attr(attr)->index;
478 struct f75375_data *data = f75375_update_device(dev);
479 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
480 }
481
482 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
483 char *buf)
484 {
485 int nr = to_sensor_dev_attr(attr)->index;
486 struct f75375_data *data = f75375_update_device(dev);
487 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
488 }
489
490 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
491 const char *buf, size_t count)
492 {
493 int nr = to_sensor_dev_attr(attr)->index;
494 struct i2c_client *client = to_i2c_client(dev);
495 struct f75375_data *data = i2c_get_clientdata(client);
496 unsigned long val;
497 int err;
498
499 err = kstrtoul(buf, 10, &val);
500 if (err < 0)
501 return err;
502
503 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
504 mutex_lock(&data->update_lock);
505 data->in_max[nr] = val;
506 f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
507 mutex_unlock(&data->update_lock);
508 return count;
509 }
510
511 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
512 const char *buf, size_t count)
513 {
514 int nr = to_sensor_dev_attr(attr)->index;
515 struct i2c_client *client = to_i2c_client(dev);
516 struct f75375_data *data = i2c_get_clientdata(client);
517 unsigned long val;
518 int err;
519
520 err = kstrtoul(buf, 10, &val);
521 if (err < 0)
522 return err;
523
524 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
525 mutex_lock(&data->update_lock);
526 data->in_min[nr] = val;
527 f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
528 mutex_unlock(&data->update_lock);
529 return count;
530 }
531 #define TEMP_FROM_REG(val) ((val) * 1000)
532 #define TEMP_TO_REG(val) ((val) / 1000)
533 #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125)
534
535 static ssize_t show_temp11(struct device *dev, struct device_attribute *attr,
536 char *buf)
537 {
538 int nr = to_sensor_dev_attr(attr)->index;
539 struct f75375_data *data = f75375_update_device(dev);
540 return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[nr]));
541 }
542
543 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
544 char *buf)
545 {
546 int nr = to_sensor_dev_attr(attr)->index;
547 struct f75375_data *data = f75375_update_device(dev);
548 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
549 }
550
551 static ssize_t show_temp_max_hyst(struct device *dev,
552 struct device_attribute *attr, char *buf)
553 {
554 int nr = to_sensor_dev_attr(attr)->index;
555 struct f75375_data *data = f75375_update_device(dev);
556 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
557 }
558
559 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
560 const char *buf, size_t count)
561 {
562 int nr = to_sensor_dev_attr(attr)->index;
563 struct i2c_client *client = to_i2c_client(dev);
564 struct f75375_data *data = i2c_get_clientdata(client);
565 unsigned long val;
566 int err;
567
568 err = kstrtoul(buf, 10, &val);
569 if (err < 0)
570 return err;
571
572 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
573 mutex_lock(&data->update_lock);
574 data->temp_high[nr] = val;
575 f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
576 mutex_unlock(&data->update_lock);
577 return count;
578 }
579
580 static ssize_t set_temp_max_hyst(struct device *dev,
581 struct device_attribute *attr, const char *buf, size_t count)
582 {
583 int nr = to_sensor_dev_attr(attr)->index;
584 struct i2c_client *client = to_i2c_client(dev);
585 struct f75375_data *data = i2c_get_clientdata(client);
586 unsigned long val;
587 int err;
588
589 err = kstrtoul(buf, 10, &val);
590 if (err < 0)
591 return err;
592
593 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
594 mutex_lock(&data->update_lock);
595 data->temp_max_hyst[nr] = val;
596 f75375_write8(client, F75375_REG_TEMP_HYST(nr),
597 data->temp_max_hyst[nr]);
598 mutex_unlock(&data->update_lock);
599 return count;
600 }
601
602 #define show_fan(thing) \
603 static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
604 char *buf)\
605 {\
606 int nr = to_sensor_dev_attr(attr)->index;\
607 struct f75375_data *data = f75375_update_device(dev); \
608 return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
609 }
610
611 show_fan(fan);
612 show_fan(fan_min);
613 show_fan(fan_max);
614 show_fan(fan_target);
615
616 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
617 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
618 show_in_max, set_in_max, 0);
619 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
620 show_in_min, set_in_min, 0);
621 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
622 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
623 show_in_max, set_in_max, 1);
624 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
625 show_in_min, set_in_min, 1);
626 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
627 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
628 show_in_max, set_in_max, 2);
629 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
630 show_in_min, set_in_min, 2);
631 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
632 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
633 show_in_max, set_in_max, 3);
634 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
635 show_in_min, set_in_min, 3);
636 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 0);
637 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
638 show_temp_max_hyst, set_temp_max_hyst, 0);
639 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
640 show_temp_max, set_temp_max, 0);
641 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 1);
642 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
643 show_temp_max_hyst, set_temp_max_hyst, 1);
644 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
645 show_temp_max, set_temp_max, 1);
646 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
647 static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, show_fan_max, NULL, 0);
648 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
649 show_fan_min, set_fan_min, 0);
650 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO|S_IWUSR,
651 show_fan_target, set_fan_target, 0);
652 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
653 static SENSOR_DEVICE_ATTR(fan2_max, S_IRUGO, show_fan_max, NULL, 1);
654 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
655 show_fan_min, set_fan_min, 1);
656 static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO|S_IWUSR,
657 show_fan_target, set_fan_target, 1);
658 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
659 show_pwm, set_pwm, 0);
660 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
661 show_pwm_enable, set_pwm_enable, 0);
662 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
663 show_pwm_mode, set_pwm_mode, 0);
664 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
665 show_pwm, set_pwm, 1);
666 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
667 show_pwm_enable, set_pwm_enable, 1);
668 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
669 show_pwm_mode, set_pwm_mode, 1);
670
671 static struct attribute *f75375_attributes[] = {
672 &sensor_dev_attr_temp1_input.dev_attr.attr,
673 &sensor_dev_attr_temp1_max.dev_attr.attr,
674 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
675 &sensor_dev_attr_temp2_input.dev_attr.attr,
676 &sensor_dev_attr_temp2_max.dev_attr.attr,
677 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
678 &sensor_dev_attr_fan1_input.dev_attr.attr,
679 &sensor_dev_attr_fan1_max.dev_attr.attr,
680 &sensor_dev_attr_fan1_min.dev_attr.attr,
681 &sensor_dev_attr_fan1_target.dev_attr.attr,
682 &sensor_dev_attr_fan2_input.dev_attr.attr,
683 &sensor_dev_attr_fan2_max.dev_attr.attr,
684 &sensor_dev_attr_fan2_min.dev_attr.attr,
685 &sensor_dev_attr_fan2_target.dev_attr.attr,
686 &sensor_dev_attr_pwm1.dev_attr.attr,
687 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
688 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
689 &sensor_dev_attr_pwm2.dev_attr.attr,
690 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
691 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
692 &sensor_dev_attr_in0_input.dev_attr.attr,
693 &sensor_dev_attr_in0_max.dev_attr.attr,
694 &sensor_dev_attr_in0_min.dev_attr.attr,
695 &sensor_dev_attr_in1_input.dev_attr.attr,
696 &sensor_dev_attr_in1_max.dev_attr.attr,
697 &sensor_dev_attr_in1_min.dev_attr.attr,
698 &sensor_dev_attr_in2_input.dev_attr.attr,
699 &sensor_dev_attr_in2_max.dev_attr.attr,
700 &sensor_dev_attr_in2_min.dev_attr.attr,
701 &sensor_dev_attr_in3_input.dev_attr.attr,
702 &sensor_dev_attr_in3_max.dev_attr.attr,
703 &sensor_dev_attr_in3_min.dev_attr.attr,
704 NULL
705 };
706
707 static const struct attribute_group f75375_group = {
708 .attrs = f75375_attributes,
709 };
710
711 static void f75375_init(struct i2c_client *client, struct f75375_data *data,
712 struct f75375s_platform_data *f75375s_pdata)
713 {
714 int nr;
715
716 if (!f75375s_pdata) {
717 u8 conf, mode;
718 int nr;
719
720 conf = f75375_read8(client, F75375_REG_CONFIG1);
721 mode = f75375_read8(client, F75375_REG_FAN_TIMER);
722 for (nr = 0; nr < 2; nr++) {
723 if (data->kind == f75387) {
724 bool manu, duty;
725
726 if (!(conf & (1 << F75387_FAN_CTRL_LINEAR(nr))))
727 data->pwm_mode[nr] = 1;
728
729 manu = ((mode >> F75387_FAN_MANU_MODE(nr)) & 1);
730 duty = ((mode >> F75387_FAN_DUTY_MODE(nr)) & 1);
731 if (manu && duty)
732 /* speed */
733 data->pwm_enable[nr] = 3;
734 else if (!manu && duty)
735 /* automatic */
736 data->pwm_enable[nr] = 2;
737 else
738 /* manual */
739 data->pwm_enable[nr] = 1;
740 } else {
741 if (!(conf & (1 << F75375_FAN_CTRL_LINEAR(nr))))
742 data->pwm_mode[nr] = 1;
743
744 switch ((mode >> FAN_CTRL_MODE(nr)) & 3) {
745 case 0: /* speed */
746 data->pwm_enable[nr] = 3;
747 break;
748 case 1: /* automatic */
749 data->pwm_enable[nr] = 2;
750 break;
751 default: /* manual */
752 data->pwm_enable[nr] = 1;
753 break;
754 }
755 }
756 }
757 return;
758 }
759
760 set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
761 set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
762 for (nr = 0; nr < 2; nr++) {
763 data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
764 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
765 data->pwm[nr]);
766 }
767
768 }
769
770 static int f75375_probe(struct i2c_client *client,
771 const struct i2c_device_id *id)
772 {
773 struct f75375_data *data;
774 struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
775 int err;
776
777 if (!i2c_check_functionality(client->adapter,
778 I2C_FUNC_SMBUS_BYTE_DATA))
779 return -EIO;
780 data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL);
781 if (!data)
782 return -ENOMEM;
783
784 i2c_set_clientdata(client, data);
785 mutex_init(&data->update_lock);
786 data->kind = id->driver_data;
787
788 err = sysfs_create_group(&client->dev.kobj, &f75375_group);
789 if (err)
790 goto exit_free;
791
792 if (data->kind == f75375) {
793 err = sysfs_chmod_file(&client->dev.kobj,
794 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
795 S_IRUGO | S_IWUSR);
796 if (err)
797 goto exit_remove;
798 err = sysfs_chmod_file(&client->dev.kobj,
799 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
800 S_IRUGO | S_IWUSR);
801 if (err)
802 goto exit_remove;
803 }
804
805 data->hwmon_dev = hwmon_device_register(&client->dev);
806 if (IS_ERR(data->hwmon_dev)) {
807 err = PTR_ERR(data->hwmon_dev);
808 goto exit_remove;
809 }
810
811 f75375_init(client, data, f75375s_pdata);
812
813 return 0;
814
815 exit_remove:
816 sysfs_remove_group(&client->dev.kobj, &f75375_group);
817 exit_free:
818 kfree(data);
819 return err;
820 }
821
822 static int f75375_remove(struct i2c_client *client)
823 {
824 struct f75375_data *data = i2c_get_clientdata(client);
825 hwmon_device_unregister(data->hwmon_dev);
826 sysfs_remove_group(&client->dev.kobj, &f75375_group);
827 kfree(data);
828 return 0;
829 }
830
831 /* Return 0 if detection is successful, -ENODEV otherwise */
832 static int f75375_detect(struct i2c_client *client,
833 struct i2c_board_info *info)
834 {
835 struct i2c_adapter *adapter = client->adapter;
836 u16 vendid, chipid;
837 u8 version;
838 const char *name;
839
840 vendid = f75375_read16(client, F75375_REG_VENDOR);
841 chipid = f75375_read16(client, F75375_CHIP_ID);
842 if (vendid != 0x1934)
843 return -ENODEV;
844
845 if (chipid == 0x0306)
846 name = "f75375";
847 else if (chipid == 0x0204)
848 name = "f75373";
849 else if (chipid == 0x0410)
850 name = "f75387";
851 else
852 return -ENODEV;
853
854 version = f75375_read8(client, F75375_REG_VERSION);
855 dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
856 strlcpy(info->type, name, I2C_NAME_SIZE);
857
858 return 0;
859 }
860
861 static int __init sensors_f75375_init(void)
862 {
863 return i2c_add_driver(&f75375_driver);
864 }
865
866 static void __exit sensors_f75375_exit(void)
867 {
868 i2c_del_driver(&f75375_driver);
869 }
870
871 MODULE_AUTHOR("Riku Voipio");
872 MODULE_LICENSE("GPL");
873 MODULE_DESCRIPTION("F75373/F75375/F75387 hardware monitoring driver");
874
875 module_init(sensors_f75375_init);
876 module_exit(sensors_f75375_exit);