2 * f75375s.c - driver for the Fintek F75375/SP and F75373
3 * 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
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
30 #include <linux/module.h>
31 #include <linux/jiffies.h>
32 #include <linux/hwmon.h>
33 #include <linux/hwmon-sysfs.h>
34 #include <linux/i2c.h>
35 #include <linux/err.h>
36 #include <linux/mutex.h>
37 #include <linux/f75375s.h>
38 #include <linux/slab.h>
40 /* Addresses to scan */
41 static const unsigned short normal_i2c
[] = { 0x2d, 0x2e, I2C_CLIENT_END
};
43 enum chips
{ f75373
, f75375
};
45 /* Fintek F75375 registers */
46 #define F75375_REG_CONFIG0 0x0
47 #define F75375_REG_CONFIG1 0x1
48 #define F75375_REG_CONFIG2 0x2
49 #define F75375_REG_CONFIG3 0x3
50 #define F75375_REG_ADDR 0x4
51 #define F75375_REG_INTR 0x31
52 #define F75375_CHIP_ID 0x5A
53 #define F75375_REG_VERSION 0x5C
54 #define F75375_REG_VENDOR 0x5D
55 #define F75375_REG_FAN_TIMER 0x60
57 #define F75375_REG_VOLT(nr) (0x10 + (nr))
58 #define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2)
59 #define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2)
61 #define F75375_REG_TEMP(nr) (0x14 + (nr))
62 #define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2)
63 #define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2)
65 #define F75375_REG_FAN(nr) (0x16 + (nr) * 2)
66 #define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2)
67 #define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10)
68 #define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10)
69 #define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10)
71 #define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10)
72 #define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
73 #define F75375_REG_FAN_B_SPEED(nr, step) \
74 ((0xA5 + (nr) * 0x10) + (step) * 2)
76 #define F75375_REG_PWM1_RAISE_DUTY 0x69
77 #define F75375_REG_PWM2_RAISE_DUTY 0x6A
78 #define F75375_REG_PWM1_DROP_DUTY 0x6B
79 #define F75375_REG_PWM2_DROP_DUTY 0x6C
81 #define FAN_CTRL_LINEAR(nr) (4 + nr)
82 #define FAN_CTRL_MODE(nr) (4 + ((nr) * 2))
85 * Data structures and manipulation thereof
90 struct device
*hwmon_dev
;
94 struct mutex update_lock
; /* protect register access */
96 unsigned long last_updated
; /* In jiffies */
97 unsigned long last_limits
; /* In jiffies */
116 static int f75375_detect(struct i2c_client
*client
,
117 struct i2c_board_info
*info
);
118 static int f75375_probe(struct i2c_client
*client
,
119 const struct i2c_device_id
*id
);
120 static int f75375_remove(struct i2c_client
*client
);
122 static const struct i2c_device_id f75375_id
[] = {
123 { "f75373", f75373
},
124 { "f75375", f75375
},
127 MODULE_DEVICE_TABLE(i2c
, f75375_id
);
129 static struct i2c_driver f75375_driver
= {
130 .class = I2C_CLASS_HWMON
,
134 .probe
= f75375_probe
,
135 .remove
= f75375_remove
,
136 .id_table
= f75375_id
,
137 .detect
= f75375_detect
,
138 .address_list
= normal_i2c
,
141 static inline int f75375_read8(struct i2c_client
*client
, u8 reg
)
143 return i2c_smbus_read_byte_data(client
, reg
);
146 /* in most cases, should be called while holding update_lock */
147 static inline u16
f75375_read16(struct i2c_client
*client
, u8 reg
)
149 return ((i2c_smbus_read_byte_data(client
, reg
) << 8)
150 | i2c_smbus_read_byte_data(client
, reg
+ 1));
153 static inline void f75375_write8(struct i2c_client
*client
, u8 reg
,
156 i2c_smbus_write_byte_data(client
, reg
, value
);
159 static inline void f75375_write16(struct i2c_client
*client
, u8 reg
,
162 int err
= i2c_smbus_write_byte_data(client
, reg
, (value
<< 8));
165 i2c_smbus_write_byte_data(client
, reg
+ 1, (value
& 0xFF));
168 static struct f75375_data
*f75375_update_device(struct device
*dev
)
170 struct i2c_client
*client
= to_i2c_client(dev
);
171 struct f75375_data
*data
= i2c_get_clientdata(client
);
174 mutex_lock(&data
->update_lock
);
176 /* Limit registers cache is refreshed after 60 seconds */
177 if (time_after(jiffies
, data
->last_limits
+ 60 * HZ
)
179 for (nr
= 0; nr
< 2; nr
++) {
180 data
->temp_high
[nr
] =
181 f75375_read8(client
, F75375_REG_TEMP_HIGH(nr
));
182 data
->temp_max_hyst
[nr
] =
183 f75375_read8(client
, F75375_REG_TEMP_HYST(nr
));
185 f75375_read16(client
, F75375_REG_FAN_FULL(nr
));
187 f75375_read16(client
, F75375_REG_FAN_MIN(nr
));
189 f75375_read16(client
, F75375_REG_FAN_EXP(nr
));
190 data
->pwm
[nr
] = f75375_read8(client
,
191 F75375_REG_FAN_PWM_DUTY(nr
));
194 for (nr
= 0; nr
< 4; nr
++) {
196 f75375_read8(client
, F75375_REG_VOLT_HIGH(nr
));
198 f75375_read8(client
, F75375_REG_VOLT_LOW(nr
));
200 data
->fan_timer
= f75375_read8(client
, F75375_REG_FAN_TIMER
);
201 data
->last_limits
= jiffies
;
204 /* Measurement registers cache is refreshed after 2 second */
205 if (time_after(jiffies
, data
->last_updated
+ 2 * HZ
)
207 for (nr
= 0; nr
< 2; nr
++) {
209 f75375_read8(client
, F75375_REG_TEMP(nr
));
211 f75375_read16(client
, F75375_REG_FAN(nr
));
213 for (nr
= 0; nr
< 4; nr
++)
215 f75375_read8(client
, F75375_REG_VOLT(nr
));
217 data
->last_updated
= jiffies
;
221 mutex_unlock(&data
->update_lock
);
225 static inline u16
rpm_from_reg(u16 reg
)
227 if (reg
== 0 || reg
== 0xffff)
229 return (1500000 / reg
);
232 static inline u16
rpm_to_reg(int rpm
)
234 if (rpm
< 367 || rpm
> 0xffff)
236 return (1500000 / rpm
);
239 static ssize_t
set_fan_min(struct device
*dev
, struct device_attribute
*attr
,
240 const char *buf
, size_t count
)
242 int nr
= to_sensor_dev_attr(attr
)->index
;
243 struct i2c_client
*client
= to_i2c_client(dev
);
244 struct f75375_data
*data
= i2c_get_clientdata(client
);
245 int val
= simple_strtoul(buf
, NULL
, 10);
247 mutex_lock(&data
->update_lock
);
248 data
->fan_min
[nr
] = rpm_to_reg(val
);
249 f75375_write16(client
, F75375_REG_FAN_MIN(nr
), data
->fan_min
[nr
]);
250 mutex_unlock(&data
->update_lock
);
254 static ssize_t
set_fan_exp(struct device
*dev
, struct device_attribute
*attr
,
255 const char *buf
, size_t count
)
257 int nr
= to_sensor_dev_attr(attr
)->index
;
258 struct i2c_client
*client
= to_i2c_client(dev
);
259 struct f75375_data
*data
= i2c_get_clientdata(client
);
260 int val
= simple_strtoul(buf
, NULL
, 10);
262 mutex_lock(&data
->update_lock
);
263 data
->fan_exp
[nr
] = rpm_to_reg(val
);
264 f75375_write16(client
, F75375_REG_FAN_EXP(nr
), data
->fan_exp
[nr
]);
265 mutex_unlock(&data
->update_lock
);
269 static ssize_t
set_pwm(struct device
*dev
, struct device_attribute
*attr
,
270 const char *buf
, size_t count
)
272 int nr
= to_sensor_dev_attr(attr
)->index
;
273 struct i2c_client
*client
= to_i2c_client(dev
);
274 struct f75375_data
*data
= i2c_get_clientdata(client
);
275 int val
= simple_strtoul(buf
, NULL
, 10);
277 mutex_lock(&data
->update_lock
);
278 data
->pwm
[nr
] = SENSORS_LIMIT(val
, 0, 255);
279 f75375_write8(client
, F75375_REG_FAN_PWM_DUTY(nr
), data
->pwm
[nr
]);
280 mutex_unlock(&data
->update_lock
);
284 static ssize_t
show_pwm_enable(struct device
*dev
, struct device_attribute
287 int nr
= to_sensor_dev_attr(attr
)->index
;
288 struct f75375_data
*data
= f75375_update_device(dev
);
289 return sprintf(buf
, "%d\n", data
->pwm_enable
[nr
]);
292 static int set_pwm_enable_direct(struct i2c_client
*client
, int nr
, int val
)
294 struct f75375_data
*data
= i2c_get_clientdata(client
);
297 if (val
< 0 || val
> 4)
300 fanmode
= f75375_read8(client
, F75375_REG_FAN_TIMER
);
301 fanmode
&= ~(3 << FAN_CTRL_MODE(nr
));
304 case 0: /* Full speed */
305 fanmode
|= (3 << FAN_CTRL_MODE(nr
));
307 f75375_write8(client
, F75375_REG_FAN_PWM_DUTY(nr
),
311 fanmode
|= (3 << FAN_CTRL_MODE(nr
));
313 case 2: /* AUTOMATIC*/
314 fanmode
|= (2 << FAN_CTRL_MODE(nr
));
316 case 3: /* fan speed */
319 f75375_write8(client
, F75375_REG_FAN_TIMER
, fanmode
);
320 data
->pwm_enable
[nr
] = val
;
324 static ssize_t
set_pwm_enable(struct device
*dev
, struct device_attribute
*attr
,
325 const char *buf
, size_t count
)
327 int nr
= to_sensor_dev_attr(attr
)->index
;
328 struct i2c_client
*client
= to_i2c_client(dev
);
329 struct f75375_data
*data
= i2c_get_clientdata(client
);
330 int val
= simple_strtoul(buf
, NULL
, 10);
333 mutex_lock(&data
->update_lock
);
334 err
= set_pwm_enable_direct(client
, nr
, val
);
335 mutex_unlock(&data
->update_lock
);
336 return err
? err
: count
;
339 static ssize_t
set_pwm_mode(struct device
*dev
, struct device_attribute
*attr
,
340 const char *buf
, size_t count
)
342 int nr
= to_sensor_dev_attr(attr
)->index
;
343 struct i2c_client
*client
= to_i2c_client(dev
);
344 struct f75375_data
*data
= i2c_get_clientdata(client
);
345 int val
= simple_strtoul(buf
, NULL
, 10);
348 if (!(val
== 0 || val
== 1))
351 mutex_lock(&data
->update_lock
);
352 conf
= f75375_read8(client
, F75375_REG_CONFIG1
);
353 conf
&= ~(1 << FAN_CTRL_LINEAR(nr
));
356 conf
|= (1 << FAN_CTRL_LINEAR(nr
)) ;
358 f75375_write8(client
, F75375_REG_CONFIG1
, conf
);
359 data
->pwm_mode
[nr
] = val
;
360 mutex_unlock(&data
->update_lock
);
364 static ssize_t
show_pwm(struct device
*dev
, struct device_attribute
367 int nr
= to_sensor_dev_attr(attr
)->index
;
368 struct f75375_data
*data
= f75375_update_device(dev
);
369 return sprintf(buf
, "%d\n", data
->pwm
[nr
]);
372 static ssize_t
show_pwm_mode(struct device
*dev
, struct device_attribute
375 int nr
= to_sensor_dev_attr(attr
)->index
;
376 struct f75375_data
*data
= f75375_update_device(dev
);
377 return sprintf(buf
, "%d\n", data
->pwm_mode
[nr
]);
380 #define VOLT_FROM_REG(val) ((val) * 8)
381 #define VOLT_TO_REG(val) ((val) / 8)
383 static ssize_t
show_in(struct device
*dev
, struct device_attribute
*attr
,
386 int nr
= to_sensor_dev_attr(attr
)->index
;
387 struct f75375_data
*data
= f75375_update_device(dev
);
388 return sprintf(buf
, "%d\n", VOLT_FROM_REG(data
->in
[nr
]));
391 static ssize_t
show_in_max(struct device
*dev
, struct device_attribute
*attr
,
394 int nr
= to_sensor_dev_attr(attr
)->index
;
395 struct f75375_data
*data
= f75375_update_device(dev
);
396 return sprintf(buf
, "%d\n", VOLT_FROM_REG(data
->in_max
[nr
]));
399 static ssize_t
show_in_min(struct device
*dev
, struct device_attribute
*attr
,
402 int nr
= to_sensor_dev_attr(attr
)->index
;
403 struct f75375_data
*data
= f75375_update_device(dev
);
404 return sprintf(buf
, "%d\n", VOLT_FROM_REG(data
->in_min
[nr
]));
407 static ssize_t
set_in_max(struct device
*dev
, struct device_attribute
*attr
,
408 const char *buf
, size_t count
)
410 int nr
= to_sensor_dev_attr(attr
)->index
;
411 struct i2c_client
*client
= to_i2c_client(dev
);
412 struct f75375_data
*data
= i2c_get_clientdata(client
);
413 int val
= simple_strtoul(buf
, NULL
, 10);
414 val
= SENSORS_LIMIT(VOLT_TO_REG(val
), 0, 0xff);
415 mutex_lock(&data
->update_lock
);
416 data
->in_max
[nr
] = val
;
417 f75375_write8(client
, F75375_REG_VOLT_HIGH(nr
), data
->in_max
[nr
]);
418 mutex_unlock(&data
->update_lock
);
422 static ssize_t
set_in_min(struct device
*dev
, struct device_attribute
*attr
,
423 const char *buf
, size_t count
)
425 int nr
= to_sensor_dev_attr(attr
)->index
;
426 struct i2c_client
*client
= to_i2c_client(dev
);
427 struct f75375_data
*data
= i2c_get_clientdata(client
);
428 int val
= simple_strtoul(buf
, NULL
, 10);
429 val
= SENSORS_LIMIT(VOLT_TO_REG(val
), 0, 0xff);
430 mutex_lock(&data
->update_lock
);
431 data
->in_min
[nr
] = val
;
432 f75375_write8(client
, F75375_REG_VOLT_LOW(nr
), data
->in_min
[nr
]);
433 mutex_unlock(&data
->update_lock
);
436 #define TEMP_FROM_REG(val) ((val) * 1000)
437 #define TEMP_TO_REG(val) ((val) / 1000)
439 static ssize_t
show_temp(struct device
*dev
, struct device_attribute
*attr
,
442 int nr
= to_sensor_dev_attr(attr
)->index
;
443 struct f75375_data
*data
= f75375_update_device(dev
);
444 return sprintf(buf
, "%d\n", TEMP_FROM_REG(data
->temp
[nr
]));
447 static ssize_t
show_temp_max(struct device
*dev
, struct device_attribute
*attr
,
450 int nr
= to_sensor_dev_attr(attr
)->index
;
451 struct f75375_data
*data
= f75375_update_device(dev
);
452 return sprintf(buf
, "%d\n", TEMP_FROM_REG(data
->temp_high
[nr
]));
455 static ssize_t
show_temp_max_hyst(struct device
*dev
,
456 struct device_attribute
*attr
, char *buf
)
458 int nr
= to_sensor_dev_attr(attr
)->index
;
459 struct f75375_data
*data
= f75375_update_device(dev
);
460 return sprintf(buf
, "%d\n", TEMP_FROM_REG(data
->temp_max_hyst
[nr
]));
463 static ssize_t
set_temp_max(struct device
*dev
, struct device_attribute
*attr
,
464 const char *buf
, size_t count
)
466 int nr
= to_sensor_dev_attr(attr
)->index
;
467 struct i2c_client
*client
= to_i2c_client(dev
);
468 struct f75375_data
*data
= i2c_get_clientdata(client
);
469 int val
= simple_strtol(buf
, NULL
, 10);
470 val
= SENSORS_LIMIT(TEMP_TO_REG(val
), 0, 127);
471 mutex_lock(&data
->update_lock
);
472 data
->temp_high
[nr
] = val
;
473 f75375_write8(client
, F75375_REG_TEMP_HIGH(nr
), data
->temp_high
[nr
]);
474 mutex_unlock(&data
->update_lock
);
478 static ssize_t
set_temp_max_hyst(struct device
*dev
,
479 struct device_attribute
*attr
, const char *buf
, size_t count
)
481 int nr
= to_sensor_dev_attr(attr
)->index
;
482 struct i2c_client
*client
= to_i2c_client(dev
);
483 struct f75375_data
*data
= i2c_get_clientdata(client
);
484 int val
= simple_strtol(buf
, NULL
, 10);
485 val
= SENSORS_LIMIT(TEMP_TO_REG(val
), 0, 127);
486 mutex_lock(&data
->update_lock
);
487 data
->temp_max_hyst
[nr
] = val
;
488 f75375_write8(client
, F75375_REG_TEMP_HYST(nr
),
489 data
->temp_max_hyst
[nr
]);
490 mutex_unlock(&data
->update_lock
);
494 #define show_fan(thing) \
495 static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
498 int nr = to_sensor_dev_attr(attr)->index;\
499 struct f75375_data *data = f75375_update_device(dev); \
500 return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
508 static SENSOR_DEVICE_ATTR(in0_input
, S_IRUGO
, show_in
, NULL
, 0);
509 static SENSOR_DEVICE_ATTR(in0_max
, S_IRUGO
|S_IWUSR
,
510 show_in_max
, set_in_max
, 0);
511 static SENSOR_DEVICE_ATTR(in0_min
, S_IRUGO
|S_IWUSR
,
512 show_in_min
, set_in_min
, 0);
513 static SENSOR_DEVICE_ATTR(in1_input
, S_IRUGO
, show_in
, NULL
, 1);
514 static SENSOR_DEVICE_ATTR(in1_max
, S_IRUGO
|S_IWUSR
,
515 show_in_max
, set_in_max
, 1);
516 static SENSOR_DEVICE_ATTR(in1_min
, S_IRUGO
|S_IWUSR
,
517 show_in_min
, set_in_min
, 1);
518 static SENSOR_DEVICE_ATTR(in2_input
, S_IRUGO
, show_in
, NULL
, 2);
519 static SENSOR_DEVICE_ATTR(in2_max
, S_IRUGO
|S_IWUSR
,
520 show_in_max
, set_in_max
, 2);
521 static SENSOR_DEVICE_ATTR(in2_min
, S_IRUGO
|S_IWUSR
,
522 show_in_min
, set_in_min
, 2);
523 static SENSOR_DEVICE_ATTR(in3_input
, S_IRUGO
, show_in
, NULL
, 3);
524 static SENSOR_DEVICE_ATTR(in3_max
, S_IRUGO
|S_IWUSR
,
525 show_in_max
, set_in_max
, 3);
526 static SENSOR_DEVICE_ATTR(in3_min
, S_IRUGO
|S_IWUSR
,
527 show_in_min
, set_in_min
, 3);
528 static SENSOR_DEVICE_ATTR(temp1_input
, S_IRUGO
, show_temp
, NULL
, 0);
529 static SENSOR_DEVICE_ATTR(temp1_max_hyst
, S_IRUGO
|S_IWUSR
,
530 show_temp_max_hyst
, set_temp_max_hyst
, 0);
531 static SENSOR_DEVICE_ATTR(temp1_max
, S_IRUGO
|S_IWUSR
,
532 show_temp_max
, set_temp_max
, 0);
533 static SENSOR_DEVICE_ATTR(temp2_input
, S_IRUGO
, show_temp
, NULL
, 1);
534 static SENSOR_DEVICE_ATTR(temp2_max_hyst
, S_IRUGO
|S_IWUSR
,
535 show_temp_max_hyst
, set_temp_max_hyst
, 1);
536 static SENSOR_DEVICE_ATTR(temp2_max
, S_IRUGO
|S_IWUSR
,
537 show_temp_max
, set_temp_max
, 1);
538 static SENSOR_DEVICE_ATTR(fan1_input
, S_IRUGO
, show_fan
, NULL
, 0);
539 static SENSOR_DEVICE_ATTR(fan1_full
, S_IRUGO
, show_fan_full
, NULL
, 0);
540 static SENSOR_DEVICE_ATTR(fan1_min
, S_IRUGO
|S_IWUSR
,
541 show_fan_min
, set_fan_min
, 0);
542 static SENSOR_DEVICE_ATTR(fan1_exp
, S_IRUGO
|S_IWUSR
,
543 show_fan_exp
, set_fan_exp
, 0);
544 static SENSOR_DEVICE_ATTR(fan2_input
, S_IRUGO
, show_fan
, NULL
, 1);
545 static SENSOR_DEVICE_ATTR(fan2_full
, S_IRUGO
, show_fan_full
, NULL
, 1);
546 static SENSOR_DEVICE_ATTR(fan2_min
, S_IRUGO
|S_IWUSR
,
547 show_fan_min
, set_fan_min
, 1);
548 static SENSOR_DEVICE_ATTR(fan2_exp
, S_IRUGO
|S_IWUSR
,
549 show_fan_exp
, set_fan_exp
, 1);
550 static SENSOR_DEVICE_ATTR(pwm1
, S_IRUGO
|S_IWUSR
,
551 show_pwm
, set_pwm
, 0);
552 static SENSOR_DEVICE_ATTR(pwm1_enable
, S_IRUGO
|S_IWUSR
,
553 show_pwm_enable
, set_pwm_enable
, 0);
554 static SENSOR_DEVICE_ATTR(pwm1_mode
, S_IRUGO
,
555 show_pwm_mode
, set_pwm_mode
, 0);
556 static SENSOR_DEVICE_ATTR(pwm2
, S_IRUGO
| S_IWUSR
,
557 show_pwm
, set_pwm
, 1);
558 static SENSOR_DEVICE_ATTR(pwm2_enable
, S_IRUGO
|S_IWUSR
,
559 show_pwm_enable
, set_pwm_enable
, 1);
560 static SENSOR_DEVICE_ATTR(pwm2_mode
, S_IRUGO
,
561 show_pwm_mode
, set_pwm_mode
, 1);
563 static struct attribute
*f75375_attributes
[] = {
564 &sensor_dev_attr_temp1_input
.dev_attr
.attr
,
565 &sensor_dev_attr_temp1_max
.dev_attr
.attr
,
566 &sensor_dev_attr_temp1_max_hyst
.dev_attr
.attr
,
567 &sensor_dev_attr_temp2_input
.dev_attr
.attr
,
568 &sensor_dev_attr_temp2_max
.dev_attr
.attr
,
569 &sensor_dev_attr_temp2_max_hyst
.dev_attr
.attr
,
570 &sensor_dev_attr_fan1_input
.dev_attr
.attr
,
571 &sensor_dev_attr_fan1_full
.dev_attr
.attr
,
572 &sensor_dev_attr_fan1_min
.dev_attr
.attr
,
573 &sensor_dev_attr_fan1_exp
.dev_attr
.attr
,
574 &sensor_dev_attr_fan2_input
.dev_attr
.attr
,
575 &sensor_dev_attr_fan2_full
.dev_attr
.attr
,
576 &sensor_dev_attr_fan2_min
.dev_attr
.attr
,
577 &sensor_dev_attr_fan2_exp
.dev_attr
.attr
,
578 &sensor_dev_attr_pwm1
.dev_attr
.attr
,
579 &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
,
580 &sensor_dev_attr_pwm1_mode
.dev_attr
.attr
,
581 &sensor_dev_attr_pwm2
.dev_attr
.attr
,
582 &sensor_dev_attr_pwm2_enable
.dev_attr
.attr
,
583 &sensor_dev_attr_pwm2_mode
.dev_attr
.attr
,
584 &sensor_dev_attr_in0_input
.dev_attr
.attr
,
585 &sensor_dev_attr_in0_max
.dev_attr
.attr
,
586 &sensor_dev_attr_in0_min
.dev_attr
.attr
,
587 &sensor_dev_attr_in1_input
.dev_attr
.attr
,
588 &sensor_dev_attr_in1_max
.dev_attr
.attr
,
589 &sensor_dev_attr_in1_min
.dev_attr
.attr
,
590 &sensor_dev_attr_in2_input
.dev_attr
.attr
,
591 &sensor_dev_attr_in2_max
.dev_attr
.attr
,
592 &sensor_dev_attr_in2_min
.dev_attr
.attr
,
593 &sensor_dev_attr_in3_input
.dev_attr
.attr
,
594 &sensor_dev_attr_in3_max
.dev_attr
.attr
,
595 &sensor_dev_attr_in3_min
.dev_attr
.attr
,
599 static const struct attribute_group f75375_group
= {
600 .attrs
= f75375_attributes
,
603 static void f75375_init(struct i2c_client
*client
, struct f75375_data
*data
,
604 struct f75375s_platform_data
*f75375s_pdata
)
607 set_pwm_enable_direct(client
, 0, f75375s_pdata
->pwm_enable
[0]);
608 set_pwm_enable_direct(client
, 1, f75375s_pdata
->pwm_enable
[1]);
609 for (nr
= 0; nr
< 2; nr
++) {
610 data
->pwm
[nr
] = SENSORS_LIMIT(f75375s_pdata
->pwm
[nr
], 0, 255);
611 f75375_write8(client
, F75375_REG_FAN_PWM_DUTY(nr
),
617 static int f75375_probe(struct i2c_client
*client
,
618 const struct i2c_device_id
*id
)
620 struct f75375_data
*data
;
621 struct f75375s_platform_data
*f75375s_pdata
= client
->dev
.platform_data
;
624 if (!i2c_check_functionality(client
->adapter
,
625 I2C_FUNC_SMBUS_BYTE_DATA
))
627 if (!(data
= kzalloc(sizeof(struct f75375_data
), GFP_KERNEL
)))
630 i2c_set_clientdata(client
, data
);
631 mutex_init(&data
->update_lock
);
632 data
->kind
= id
->driver_data
;
634 if ((err
= sysfs_create_group(&client
->dev
.kobj
, &f75375_group
)))
637 if (data
->kind
== f75375
) {
638 err
= sysfs_chmod_file(&client
->dev
.kobj
,
639 &sensor_dev_attr_pwm1_mode
.dev_attr
.attr
,
643 err
= sysfs_chmod_file(&client
->dev
.kobj
,
644 &sensor_dev_attr_pwm2_mode
.dev_attr
.attr
,
650 data
->hwmon_dev
= hwmon_device_register(&client
->dev
);
651 if (IS_ERR(data
->hwmon_dev
)) {
652 err
= PTR_ERR(data
->hwmon_dev
);
656 if (f75375s_pdata
!= NULL
)
657 f75375_init(client
, data
, f75375s_pdata
);
662 sysfs_remove_group(&client
->dev
.kobj
, &f75375_group
);
668 static int f75375_remove(struct i2c_client
*client
)
670 struct f75375_data
*data
= i2c_get_clientdata(client
);
671 hwmon_device_unregister(data
->hwmon_dev
);
672 sysfs_remove_group(&client
->dev
.kobj
, &f75375_group
);
677 /* Return 0 if detection is successful, -ENODEV otherwise */
678 static int f75375_detect(struct i2c_client
*client
,
679 struct i2c_board_info
*info
)
681 struct i2c_adapter
*adapter
= client
->adapter
;
686 vendid
= f75375_read16(client
, F75375_REG_VENDOR
);
687 chipid
= f75375_read16(client
, F75375_CHIP_ID
);
688 if (chipid
== 0x0306 && vendid
== 0x1934)
690 else if (chipid
== 0x0204 && vendid
== 0x1934)
695 version
= f75375_read8(client
, F75375_REG_VERSION
);
696 dev_info(&adapter
->dev
, "found %s version: %02X\n", name
, version
);
697 strlcpy(info
->type
, name
, I2C_NAME_SIZE
);
702 static int __init
sensors_f75375_init(void)
704 return i2c_add_driver(&f75375_driver
);
707 static void __exit
sensors_f75375_exit(void)
709 i2c_del_driver(&f75375_driver
);
712 MODULE_AUTHOR("Riku Voipio");
713 MODULE_LICENSE("GPL");
714 MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
716 module_init(sensors_f75375_init
);
717 module_exit(sensors_f75375_exit
);