2 * f75375s.c - driver for the Fintek F75375/SP, F75373 and
3 * F75387SG/RG hardware monitoring features
4 * Copyright (C) 2006-2007 Riku Voipio
6 * Datasheets available at:
9 * http://www.fintek.com.tw/files/productfiles/F75375_V026P.pdf
12 * http://www.fintek.com.tw/files/productfiles/F75373_V025P.pdf
15 * http://www.fintek.com.tw/files/productfiles/F75387_V027P.pdf
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.
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.
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.
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>
43 /* Addresses to scan */
44 static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
46 enum chips { f75373, f75375, f75387 };
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
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)
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)
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)
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)
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
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)
92 * Data structures and manipulation thereof
97 struct device *hwmon_dev;
101 struct mutex update_lock; /* protect register access */
103 unsigned long last_updated; /* In jiffies */
104 unsigned long last_limits; /* In jiffies */
106 /* Register values */
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.
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);
134 static const struct i2c_device_id f75375_id[] = {
135 { "f75373", f75373 },
136 { "f75375", f75375 },
137 { "f75387", f75387 },
140 MODULE_DEVICE_TABLE(i2c, f75375_id);
142 static struct i2c_driver f75375_driver = {
143 .class = I2C_CLASS_HWMON,
147 .probe = f75375_probe,
148 .remove = f75375_remove,
149 .id_table = f75375_id,
150 .detect = f75375_detect,
151 .address_list = normal_i2c,
154 static inline int f75375_read8(struct i2c_client *client, u8 reg)
156 return i2c_smbus_read_byte_data(client, reg);
159 /* in most cases, should be called while holding update_lock */
160 static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
162 return (i2c_smbus_read_byte_data(client, reg) << 8)
163 | i2c_smbus_read_byte_data(client, reg + 1);
166 static inline void f75375_write8(struct i2c_client *client, u8 reg,
169 i2c_smbus_write_byte_data(client, reg, value);
172 static inline void f75375_write16(struct i2c_client *client, u8 reg,
175 int err = i2c_smbus_write_byte_data(client, reg, (value >> 8));
178 i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
181 static struct f75375_data *f75375_update_device(struct device *dev)
183 struct i2c_client *client = to_i2c_client(dev);
184 struct f75375_data *data = i2c_get_clientdata(client);
187 mutex_lock(&data->update_lock);
189 /* Limit registers cache is refreshed after 60 seconds */
190 if (time_after(jiffies, data->last_limits + 60 * HZ)
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));
198 f75375_read16(client, F75375_REG_FAN_FULL(nr));
200 f75375_read16(client, F75375_REG_FAN_MIN(nr));
201 data->fan_target[nr] =
202 f75375_read16(client, F75375_REG_FAN_EXP(nr));
204 for (nr = 0; nr < 4; nr++) {
206 f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
208 f75375_read8(client, F75375_REG_VOLT_LOW(nr));
210 data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
211 data->last_limits = jiffies;
214 /* Measurement registers cache is refreshed after 2 second */
215 if (time_after(jiffies, data->last_updated + 2 * HZ)
217 for (nr = 0; nr < 2; nr++) {
218 data->pwm[nr] = f75375_read8(client,
219 F75375_REG_FAN_PWM_DUTY(nr));
220 /* assign MSB, therefore shift it by 8 bits */
222 f75375_read8(client, F75375_REG_TEMP(nr)) << 8;
223 if (data->kind == f75387)
224 /* merge F75387's temperature LSB (11-bit) */
227 F75387_REG_TEMP11_LSB(nr));
229 f75375_read16(client, F75375_REG_FAN(nr));
231 for (nr = 0; nr < 4; nr++)
233 f75375_read8(client, F75375_REG_VOLT(nr));
235 data->last_updated = jiffies;
239 mutex_unlock(&data->update_lock);
243 static inline u16 rpm_from_reg(u16 reg)
245 if (reg == 0 || reg == 0xffff)
247 return 1500000 / reg;
250 static inline u16 rpm_to_reg(int rpm)
252 if (rpm < 367 || rpm > 0xffff)
254 return 1500000 / rpm;
257 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
258 const char *buf, size_t count)
260 int nr = to_sensor_dev_attr(attr)->index;
261 struct i2c_client *client = to_i2c_client(dev);
262 struct f75375_data *data = i2c_get_clientdata(client);
266 err = kstrtoul(buf, 10, &val);
270 mutex_lock(&data->update_lock);
271 data->fan_min[nr] = rpm_to_reg(val);
272 f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
273 mutex_unlock(&data->update_lock);
277 static ssize_t set_fan_target(struct device *dev, struct device_attribute *attr,
278 const char *buf, size_t count)
280 int nr = to_sensor_dev_attr(attr)->index;
281 struct i2c_client *client = to_i2c_client(dev);
282 struct f75375_data *data = i2c_get_clientdata(client);
286 err = kstrtoul(buf, 10, &val);
290 mutex_lock(&data->update_lock);
291 data->fan_target[nr] = rpm_to_reg(val);
292 f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_target[nr]);
293 mutex_unlock(&data->update_lock);
297 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
298 const char *buf, size_t count)
300 int nr = to_sensor_dev_attr(attr)->index;
301 struct i2c_client *client = to_i2c_client(dev);
302 struct f75375_data *data = i2c_get_clientdata(client);
306 err = kstrtoul(buf, 10, &val);
310 mutex_lock(&data->update_lock);
311 data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
312 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
313 mutex_unlock(&data->update_lock);
317 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
320 int nr = to_sensor_dev_attr(attr)->index;
321 struct f75375_data *data = f75375_update_device(dev);
322 return sprintf(buf, "%d\n", data->pwm_enable[nr]);
325 static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
327 struct f75375_data *data = i2c_get_clientdata(client);
330 if (val < 0 || val > 3)
333 fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
334 if (data->kind == f75387) {
335 /* clear each fanX_mode bit before setting them properly */
336 fanmode &= ~(1 << F75387_FAN_DUTY_MODE(nr));
337 fanmode &= ~(1 << F75387_FAN_MANU_MODE(nr));
339 case 0: /* full speed */
340 fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
341 fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
345 fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
346 fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
348 case 2: /* AUTOMATIC*/
349 fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
351 case 3: /* fan speed */
352 fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
356 /* clear each fanX_mode bit before setting them properly */
357 fanmode &= ~(3 << FAN_CTRL_MODE(nr));
359 case 0: /* full speed */
360 fanmode |= (3 << FAN_CTRL_MODE(nr));
364 fanmode |= (3 << FAN_CTRL_MODE(nr));
366 case 2: /* AUTOMATIC*/
367 fanmode |= (1 << FAN_CTRL_MODE(nr));
369 case 3: /* fan speed */
374 f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
375 data->pwm_enable[nr] = val;
377 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
382 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
383 const char *buf, size_t count)
385 int nr = to_sensor_dev_attr(attr)->index;
386 struct i2c_client *client = to_i2c_client(dev);
387 struct f75375_data *data = i2c_get_clientdata(client);
391 err = kstrtoul(buf, 10, &val);
395 mutex_lock(&data->update_lock);
396 err = set_pwm_enable_direct(client, nr, val);
397 mutex_unlock(&data->update_lock);
398 return err ? err : count;
401 static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
402 const char *buf, size_t count)
404 int nr = to_sensor_dev_attr(attr)->index;
405 struct i2c_client *client = to_i2c_client(dev);
406 struct f75375_data *data = i2c_get_clientdata(client);
412 err = kstrtoul(buf, 10, &val);
416 if (!(val == 0 || val == 1))
419 /* F75373 does not support DC (linear voltage) fan control mode */
420 if (data->kind == f75373 && val == 0)
423 /* take care for different registers */
424 if (data->kind == f75387) {
425 reg = F75375_REG_FAN_TIMER;
426 ctrl = F75387_FAN_CTRL_LINEAR(nr);
428 reg = F75375_REG_CONFIG1;
429 ctrl = F75375_FAN_CTRL_LINEAR(nr);
432 mutex_lock(&data->update_lock);
433 conf = f75375_read8(client, reg);
434 conf &= ~(1 << ctrl);
439 f75375_write8(client, reg, conf);
440 data->pwm_mode[nr] = val;
441 mutex_unlock(&data->update_lock);
445 static ssize_t show_pwm(struct device *dev, struct device_attribute
448 int nr = to_sensor_dev_attr(attr)->index;
449 struct f75375_data *data = f75375_update_device(dev);
450 return sprintf(buf, "%d\n", data->pwm[nr]);
453 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
456 int nr = to_sensor_dev_attr(attr)->index;
457 struct f75375_data *data = f75375_update_device(dev);
458 return sprintf(buf, "%d\n", data->pwm_mode[nr]);
461 #define VOLT_FROM_REG(val) ((val) * 8)
462 #define VOLT_TO_REG(val) ((val) / 8)
464 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
467 int nr = to_sensor_dev_attr(attr)->index;
468 struct f75375_data *data = f75375_update_device(dev);
469 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
472 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
475 int nr = to_sensor_dev_attr(attr)->index;
476 struct f75375_data *data = f75375_update_device(dev);
477 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
480 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
483 int nr = to_sensor_dev_attr(attr)->index;
484 struct f75375_data *data = f75375_update_device(dev);
485 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
488 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
489 const char *buf, size_t count)
491 int nr = to_sensor_dev_attr(attr)->index;
492 struct i2c_client *client = to_i2c_client(dev);
493 struct f75375_data *data = i2c_get_clientdata(client);
497 err = kstrtoul(buf, 10, &val);
501 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
502 mutex_lock(&data->update_lock);
503 data->in_max[nr] = val;
504 f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
505 mutex_unlock(&data->update_lock);
509 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
510 const char *buf, size_t count)
512 int nr = to_sensor_dev_attr(attr)->index;
513 struct i2c_client *client = to_i2c_client(dev);
514 struct f75375_data *data = i2c_get_clientdata(client);
518 err = kstrtoul(buf, 10, &val);
522 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
523 mutex_lock(&data->update_lock);
524 data->in_min[nr] = val;
525 f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
526 mutex_unlock(&data->update_lock);
529 #define TEMP_FROM_REG(val) ((val) * 1000)
530 #define TEMP_TO_REG(val) ((val) / 1000)
531 #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125)
533 static ssize_t show_temp11(struct device *dev, struct device_attribute *attr,
536 int nr = to_sensor_dev_attr(attr)->index;
537 struct f75375_data *data = f75375_update_device(dev);
538 return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[nr]));
541 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
544 int nr = to_sensor_dev_attr(attr)->index;
545 struct f75375_data *data = f75375_update_device(dev);
546 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
549 static ssize_t show_temp_max_hyst(struct device *dev,
550 struct device_attribute *attr, char *buf)
552 int nr = to_sensor_dev_attr(attr)->index;
553 struct f75375_data *data = f75375_update_device(dev);
554 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
557 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
558 const char *buf, size_t count)
560 int nr = to_sensor_dev_attr(attr)->index;
561 struct i2c_client *client = to_i2c_client(dev);
562 struct f75375_data *data = i2c_get_clientdata(client);
566 err = kstrtoul(buf, 10, &val);
570 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
571 mutex_lock(&data->update_lock);
572 data->temp_high[nr] = val;
573 f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
574 mutex_unlock(&data->update_lock);
578 static ssize_t set_temp_max_hyst(struct device *dev,
579 struct device_attribute *attr, const char *buf, size_t count)
581 int nr = to_sensor_dev_attr(attr)->index;
582 struct i2c_client *client = to_i2c_client(dev);
583 struct f75375_data *data = i2c_get_clientdata(client);
587 err = kstrtoul(buf, 10, &val);
591 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
592 mutex_lock(&data->update_lock);
593 data->temp_max_hyst[nr] = val;
594 f75375_write8(client, F75375_REG_TEMP_HYST(nr),
595 data->temp_max_hyst[nr]);
596 mutex_unlock(&data->update_lock);
600 #define show_fan(thing) \
601 static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
604 int nr = to_sensor_dev_attr(attr)->index;\
605 struct f75375_data *data = f75375_update_device(dev); \
606 return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
612 show_fan(fan_target);
614 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
615 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
616 show_in_max, set_in_max, 0);
617 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
618 show_in_min, set_in_min, 0);
619 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
620 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
621 show_in_max, set_in_max, 1);
622 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
623 show_in_min, set_in_min, 1);
624 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
625 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
626 show_in_max, set_in_max, 2);
627 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
628 show_in_min, set_in_min, 2);
629 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
630 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
631 show_in_max, set_in_max, 3);
632 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
633 show_in_min, set_in_min, 3);
634 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 0);
635 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
636 show_temp_max_hyst, set_temp_max_hyst, 0);
637 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
638 show_temp_max, set_temp_max, 0);
639 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 1);
640 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
641 show_temp_max_hyst, set_temp_max_hyst, 1);
642 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
643 show_temp_max, set_temp_max, 1);
644 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
645 static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, show_fan_max, NULL, 0);
646 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
647 show_fan_min, set_fan_min, 0);
648 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO|S_IWUSR,
649 show_fan_target, set_fan_target, 0);
650 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
651 static SENSOR_DEVICE_ATTR(fan2_max, S_IRUGO, show_fan_max, NULL, 1);
652 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
653 show_fan_min, set_fan_min, 1);
654 static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO|S_IWUSR,
655 show_fan_target, set_fan_target, 1);
656 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
657 show_pwm, set_pwm, 0);
658 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
659 show_pwm_enable, set_pwm_enable, 0);
660 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
661 show_pwm_mode, set_pwm_mode, 0);
662 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
663 show_pwm, set_pwm, 1);
664 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
665 show_pwm_enable, set_pwm_enable, 1);
666 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
667 show_pwm_mode, set_pwm_mode, 1);
669 static struct attribute *f75375_attributes[] = {
670 &sensor_dev_attr_temp1_input.dev_attr.attr,
671 &sensor_dev_attr_temp1_max.dev_attr.attr,
672 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
673 &sensor_dev_attr_temp2_input.dev_attr.attr,
674 &sensor_dev_attr_temp2_max.dev_attr.attr,
675 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
676 &sensor_dev_attr_fan1_input.dev_attr.attr,
677 &sensor_dev_attr_fan1_max.dev_attr.attr,
678 &sensor_dev_attr_fan1_min.dev_attr.attr,
679 &sensor_dev_attr_fan1_target.dev_attr.attr,
680 &sensor_dev_attr_fan2_input.dev_attr.attr,
681 &sensor_dev_attr_fan2_max.dev_attr.attr,
682 &sensor_dev_attr_fan2_min.dev_attr.attr,
683 &sensor_dev_attr_fan2_target.dev_attr.attr,
684 &sensor_dev_attr_pwm1.dev_attr.attr,
685 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
686 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
687 &sensor_dev_attr_pwm2.dev_attr.attr,
688 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
689 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
690 &sensor_dev_attr_in0_input.dev_attr.attr,
691 &sensor_dev_attr_in0_max.dev_attr.attr,
692 &sensor_dev_attr_in0_min.dev_attr.attr,
693 &sensor_dev_attr_in1_input.dev_attr.attr,
694 &sensor_dev_attr_in1_max.dev_attr.attr,
695 &sensor_dev_attr_in1_min.dev_attr.attr,
696 &sensor_dev_attr_in2_input.dev_attr.attr,
697 &sensor_dev_attr_in2_max.dev_attr.attr,
698 &sensor_dev_attr_in2_min.dev_attr.attr,
699 &sensor_dev_attr_in3_input.dev_attr.attr,
700 &sensor_dev_attr_in3_max.dev_attr.attr,
701 &sensor_dev_attr_in3_min.dev_attr.attr,
705 static const struct attribute_group f75375_group = {
706 .attrs = f75375_attributes,
709 static void f75375_init(struct i2c_client *client, struct f75375_data *data,
710 struct f75375s_platform_data *f75375s_pdata)
714 if (!f75375s_pdata) {
718 conf = f75375_read8(client, F75375_REG_CONFIG1);
719 mode = f75375_read8(client, F75375_REG_FAN_TIMER);
720 for (nr = 0; nr < 2; nr++) {
721 if (data->kind == f75387) {
724 if (!(mode & (1 << F75387_FAN_CTRL_LINEAR(nr))))
725 data->pwm_mode[nr] = 1;
727 manu = ((mode >> F75387_FAN_MANU_MODE(nr)) & 1);
728 duty = ((mode >> F75387_FAN_DUTY_MODE(nr)) & 1);
731 data->pwm_enable[nr] = 3;
732 else if (!manu && duty)
734 data->pwm_enable[nr] = 2;
737 data->pwm_enable[nr] = 1;
739 if (!(conf & (1 << F75375_FAN_CTRL_LINEAR(nr))))
740 data->pwm_mode[nr] = 1;
742 switch ((mode >> FAN_CTRL_MODE(nr)) & 3) {
744 data->pwm_enable[nr] = 3;
746 case 1: /* automatic */
747 data->pwm_enable[nr] = 2;
749 default: /* manual */
750 data->pwm_enable[nr] = 1;
758 set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
759 set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
760 for (nr = 0; nr < 2; nr++) {
761 data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
762 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
768 static int f75375_probe(struct i2c_client *client,
769 const struct i2c_device_id *id)
771 struct f75375_data *data;
772 struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
775 if (!i2c_check_functionality(client->adapter,
776 I2C_FUNC_SMBUS_BYTE_DATA))
778 data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL);
782 i2c_set_clientdata(client, data);
783 mutex_init(&data->update_lock);
784 data->kind = id->driver_data;
786 err = sysfs_create_group(&client->dev.kobj, &f75375_group);
790 if (data->kind == f75375) {
791 err = sysfs_chmod_file(&client->dev.kobj,
792 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
796 err = sysfs_chmod_file(&client->dev.kobj,
797 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
803 data->hwmon_dev = hwmon_device_register(&client->dev);
804 if (IS_ERR(data->hwmon_dev)) {
805 err = PTR_ERR(data->hwmon_dev);
809 f75375_init(client, data, f75375s_pdata);
814 sysfs_remove_group(&client->dev.kobj, &f75375_group);
820 static int f75375_remove(struct i2c_client *client)
822 struct f75375_data *data = i2c_get_clientdata(client);
823 hwmon_device_unregister(data->hwmon_dev);
824 sysfs_remove_group(&client->dev.kobj, &f75375_group);
829 /* Return 0 if detection is successful, -ENODEV otherwise */
830 static int f75375_detect(struct i2c_client *client,
831 struct i2c_board_info *info)
833 struct i2c_adapter *adapter = client->adapter;
838 vendid = f75375_read16(client, F75375_REG_VENDOR);
839 chipid = f75375_read16(client, F75375_CHIP_ID);
840 if (vendid != 0x1934)
843 if (chipid == 0x0306)
845 else if (chipid == 0x0204)
847 else if (chipid == 0x0410)
852 version = f75375_read8(client, F75375_REG_VERSION);
853 dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
854 strlcpy(info->type, name, I2C_NAME_SIZE);
859 static int __init sensors_f75375_init(void)
861 return i2c_add_driver(&f75375_driver);
864 static void __exit sensors_f75375_exit(void)
866 i2c_del_driver(&f75375_driver);
869 MODULE_AUTHOR("Riku Voipio");
870 MODULE_LICENSE("GPL");
871 MODULE_DESCRIPTION("F75373/F75375/F75387 hardware monitoring driver");
873 module_init(sensors_f75375_init);
874 module_exit(sensors_f75375_exit);