2 * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives
3 * Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
4 * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
5 * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
6 * Copyright (C) 2009 Jean Delvare <khali@linux-fr.org>
8 * Derived from the lm83 driver by Jean Delvare
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/slab.h>
18 #include <linux/i2c.h>
19 #include <linux/hwmon.h>
20 #include <linux/hwmon-sysfs.h>
21 #include <linux/hwmon-vid.h>
22 #include <linux/err.h>
24 /* Indexes for the sysfs hooks */
35 /* These are unique identifiers for the sysfs functions - unlike the
36 numbers above, these are not also indexes into an array
42 /* 7475 Common Registers */
44 #define REG_DEVREV2 0x12 /* ADT7490 only */
46 #define REG_VTT 0x1E /* ADT7490 only */
47 #define REG_EXTEND3 0x1F /* ADT7490 only */
49 #define REG_VOLTAGE_BASE 0x20
50 #define REG_TEMP_BASE 0x25
51 #define REG_TACH_BASE 0x28
52 #define REG_PWM_BASE 0x30
53 #define REG_PWM_MAX_BASE 0x38
55 #define REG_DEVID 0x3D
56 #define REG_VENDID 0x3E
57 #define REG_DEVID2 0x3F
59 #define REG_STATUS1 0x41
60 #define REG_STATUS2 0x42
62 #define REG_VID 0x43 /* ADT7476 only */
64 #define REG_VOLTAGE_MIN_BASE 0x44
65 #define REG_VOLTAGE_MAX_BASE 0x45
67 #define REG_TEMP_MIN_BASE 0x4E
68 #define REG_TEMP_MAX_BASE 0x4F
70 #define REG_TACH_MIN_BASE 0x54
72 #define REG_PWM_CONFIG_BASE 0x5C
74 #define REG_TEMP_TRANGE_BASE 0x5F
76 #define REG_PWM_MIN_BASE 0x64
78 #define REG_TEMP_TMIN_BASE 0x67
79 #define REG_TEMP_THERM_BASE 0x6A
81 #define REG_REMOTE1_HYSTERSIS 0x6D
82 #define REG_REMOTE2_HYSTERSIS 0x6E
84 #define REG_TEMP_OFFSET_BASE 0x70
86 #define REG_CONFIG2 0x73
88 #define REG_EXTEND1 0x76
89 #define REG_EXTEND2 0x77
91 #define REG_CONFIG3 0x78
92 #define REG_CONFIG5 0x7C
93 #define REG_CONFIG4 0x7D
95 #define REG_STATUS4 0x81 /* ADT7490 only */
97 #define REG_VTT_MIN 0x84 /* ADT7490 only */
98 #define REG_VTT_MAX 0x86 /* ADT7490 only */
100 #define VID_VIDSEL 0x80 /* ADT7476 only */
102 #define CONFIG2_ATTN 0x20
104 #define CONFIG3_SMBALERT 0x01
105 #define CONFIG3_THERM 0x02
107 #define CONFIG4_PINFUNC 0x03
108 #define CONFIG4_MAXDUTY 0x08
109 #define CONFIG4_ATTN_IN10 0x30
110 #define CONFIG4_ATTN_IN43 0xC0
112 #define CONFIG5_TWOSCOMP 0x01
113 #define CONFIG5_TEMPOFFSET 0x02
114 #define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */
116 /* ADT7475 Settings */
118 #define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
119 #define ADT7475_TEMP_COUNT 3
120 #define ADT7475_TACH_COUNT 4
121 #define ADT7475_PWM_COUNT 3
123 /* Macro to read the registers */
125 #define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg))
127 /* Macros to easily index the registers */
129 #define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2))
130 #define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2))
132 #define PWM_REG(idx) (REG_PWM_BASE + (idx))
133 #define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx))
134 #define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx))
135 #define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx))
137 #define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx))
138 #define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2))
139 #define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2))
141 #define TEMP_REG(idx) (REG_TEMP_BASE + (idx))
142 #define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2))
143 #define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2))
144 #define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx))
145 #define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx))
146 #define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
147 #define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
149 static const unsigned short normal_i2c
[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END
};
151 enum chips
{ adt7473
, adt7475
, adt7476
, adt7490
};
153 static const struct i2c_device_id adt7475_id
[] = {
154 { "adt7473", adt7473
},
155 { "adt7475", adt7475
},
156 { "adt7476", adt7476
},
157 { "adt7490", adt7490
},
160 MODULE_DEVICE_TABLE(i2c
, adt7475_id
);
162 struct adt7475_data
{
163 struct device
*hwmon_dev
;
166 unsigned long measure_updated
;
167 unsigned long limits_updated
;
173 u8 bypass_attn
; /* Bypass voltage attenuator */
190 static struct i2c_driver adt7475_driver
;
191 static struct adt7475_data
*adt7475_update_device(struct device
*dev
);
192 static void adt7475_read_hystersis(struct i2c_client
*client
);
193 static void adt7475_read_pwm(struct i2c_client
*client
, int index
);
195 /* Given a temp value, convert it to register value */
197 static inline u16
temp2reg(struct adt7475_data
*data
, long val
)
201 if (!(data
->config5
& CONFIG5_TWOSCOMP
)) {
202 val
= SENSORS_LIMIT(val
, -64000, 191000);
203 ret
= (val
+ 64500) / 1000;
205 val
= SENSORS_LIMIT(val
, -128000, 127000);
207 ret
= (256500 + val
) / 1000;
209 ret
= (val
+ 500) / 1000;
215 /* Given a register value, convert it to a real temp value */
217 static inline int reg2temp(struct adt7475_data
*data
, u16 reg
)
219 if (data
->config5
& CONFIG5_TWOSCOMP
) {
221 return (reg
- 1024) * 250;
225 return (reg
- 256) * 250;
228 static inline int tach2rpm(u16 tach
)
230 if (tach
== 0 || tach
== 0xFFFF)
233 return (90000 * 60) / tach
;
236 static inline u16
rpm2tach(unsigned long rpm
)
241 return SENSORS_LIMIT((90000 * 60) / rpm
, 1, 0xFFFF);
244 /* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
245 static const int adt7473_in_scaling
[ADT7475_VOLTAGE_COUNT
+ 1][2] = {
246 { 45, 94 }, /* +2.5V */
247 { 175, 525 }, /* Vccp */
248 { 68, 71 }, /* Vcc */
249 { 93, 47 }, /* +5V */
250 { 120, 20 }, /* +12V */
251 { 45, 45 }, /* Vtt */
254 static inline int reg2volt(int channel
, u16 reg
, u8 bypass_attn
)
256 const int *r
= adt7473_in_scaling
[channel
];
258 if (bypass_attn
& (1 << channel
))
259 return DIV_ROUND_CLOSEST(reg
* 2250, 1024);
260 return DIV_ROUND_CLOSEST(reg
* (r
[0] + r
[1]) * 2250, r
[1] * 1024);
263 static inline u16
volt2reg(int channel
, long volt
, u8 bypass_attn
)
265 const int *r
= adt7473_in_scaling
[channel
];
268 if (bypass_attn
& (1 << channel
))
269 reg
= (volt
* 1024) / 2250;
271 reg
= (volt
* r
[1] * 1024) / ((r
[0] + r
[1]) * 2250);
272 return SENSORS_LIMIT(reg
, 0, 1023) & (0xff << 2);
275 static u16
adt7475_read_word(struct i2c_client
*client
, int reg
)
279 val
= i2c_smbus_read_byte_data(client
, reg
);
280 val
|= (i2c_smbus_read_byte_data(client
, reg
+ 1) << 8);
285 static void adt7475_write_word(struct i2c_client
*client
, int reg
, u16 val
)
287 i2c_smbus_write_byte_data(client
, reg
+ 1, val
>> 8);
288 i2c_smbus_write_byte_data(client
, reg
, val
& 0xFF);
291 /* Find the nearest value in a table - used for pwm frequency and
293 static int find_nearest(long val
, const int *array
, int size
)
300 if (val
> array
[size
- 1])
303 for (i
= 0; i
< size
- 1; i
++) {
306 if (val
> array
[i
+ 1])
310 b
= array
[i
+ 1] - val
;
312 return (a
<= b
) ? i
: i
+ 1;
318 static ssize_t
show_voltage(struct device
*dev
, struct device_attribute
*attr
,
321 struct adt7475_data
*data
= adt7475_update_device(dev
);
322 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
327 return sprintf(buf
, "%d\n",
328 (data
->alarms
>> sattr
->index
) & 1);
330 val
= data
->voltage
[sattr
->nr
][sattr
->index
];
331 return sprintf(buf
, "%d\n",
332 reg2volt(sattr
->index
, val
, data
->bypass_attn
));
336 static ssize_t
set_voltage(struct device
*dev
, struct device_attribute
*attr
,
337 const char *buf
, size_t count
)
340 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
341 struct i2c_client
*client
= to_i2c_client(dev
);
342 struct adt7475_data
*data
= i2c_get_clientdata(client
);
346 if (kstrtol(buf
, 10, &val
))
349 mutex_lock(&data
->lock
);
351 data
->voltage
[sattr
->nr
][sattr
->index
] =
352 volt2reg(sattr
->index
, val
, data
->bypass_attn
);
354 if (sattr
->index
< ADT7475_VOLTAGE_COUNT
) {
355 if (sattr
->nr
== MIN
)
356 reg
= VOLTAGE_MIN_REG(sattr
->index
);
358 reg
= VOLTAGE_MAX_REG(sattr
->index
);
360 if (sattr
->nr
== MIN
)
366 i2c_smbus_write_byte_data(client
, reg
,
367 data
->voltage
[sattr
->nr
][sattr
->index
] >> 2);
368 mutex_unlock(&data
->lock
);
373 static ssize_t
show_temp(struct device
*dev
, struct device_attribute
*attr
,
376 struct adt7475_data
*data
= adt7475_update_device(dev
);
377 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
382 mutex_lock(&data
->lock
);
383 out
= data
->temp
[sattr
->nr
][sattr
->index
];
384 if (sattr
->index
!= 1)
385 out
= (out
>> 4) & 0xF;
388 /* Show the value as an absolute number tied to
390 out
= reg2temp(data
, data
->temp
[THERM
][sattr
->index
]) -
392 mutex_unlock(&data
->lock
);
396 /* Offset is always 2's complement, regardless of the
397 * setting in CONFIG5 */
398 mutex_lock(&data
->lock
);
399 out
= (s8
)data
->temp
[sattr
->nr
][sattr
->index
];
400 if (data
->config5
& CONFIG5_TEMPOFFSET
)
404 mutex_unlock(&data
->lock
);
408 out
= (data
->alarms
>> (sattr
->index
+ 4)) & 1;
412 /* Note - only for remote1 and remote2 */
413 out
= !!(data
->alarms
& (sattr
->index
? 0x8000 : 0x4000));
417 /* All other temp values are in the configured format */
418 out
= reg2temp(data
, data
->temp
[sattr
->nr
][sattr
->index
]);
421 return sprintf(buf
, "%d\n", out
);
424 static ssize_t
set_temp(struct device
*dev
, struct device_attribute
*attr
,
425 const char *buf
, size_t count
)
427 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
428 struct i2c_client
*client
= to_i2c_client(dev
);
429 struct adt7475_data
*data
= i2c_get_clientdata(client
);
430 unsigned char reg
= 0;
435 if (kstrtol(buf
, 10, &val
))
438 mutex_lock(&data
->lock
);
440 /* We need the config register in all cases for temp <-> reg conv. */
441 data
->config5
= adt7475_read(REG_CONFIG5
);
445 if (data
->config5
& CONFIG5_TEMPOFFSET
) {
446 val
= SENSORS_LIMIT(val
, -63000, 127000);
447 out
= data
->temp
[OFFSET
][sattr
->index
] = val
/ 1000;
449 val
= SENSORS_LIMIT(val
, -63000, 64000);
450 out
= data
->temp
[OFFSET
][sattr
->index
] = val
/ 500;
455 /* The value will be given as an absolute value, turn it
456 into an offset based on THERM */
458 /* Read fresh THERM and HYSTERSIS values from the chip */
459 data
->temp
[THERM
][sattr
->index
] =
460 adt7475_read(TEMP_THERM_REG(sattr
->index
)) << 2;
461 adt7475_read_hystersis(client
);
463 temp
= reg2temp(data
, data
->temp
[THERM
][sattr
->index
]);
464 val
= SENSORS_LIMIT(val
, temp
- 15000, temp
);
465 val
= (temp
- val
) / 1000;
467 if (sattr
->index
!= 1) {
468 data
->temp
[HYSTERSIS
][sattr
->index
] &= 0xF0;
469 data
->temp
[HYSTERSIS
][sattr
->index
] |= (val
& 0xF) << 4;
471 data
->temp
[HYSTERSIS
][sattr
->index
] &= 0x0F;
472 data
->temp
[HYSTERSIS
][sattr
->index
] |= (val
& 0xF);
475 out
= data
->temp
[HYSTERSIS
][sattr
->index
];
479 data
->temp
[sattr
->nr
][sattr
->index
] = temp2reg(data
, val
);
481 /* We maintain an extra 2 digits of precision for simplicity
482 * - shift those back off before writing the value */
483 out
= (u8
) (data
->temp
[sattr
->nr
][sattr
->index
] >> 2);
488 reg
= TEMP_MIN_REG(sattr
->index
);
491 reg
= TEMP_MAX_REG(sattr
->index
);
494 reg
= TEMP_OFFSET_REG(sattr
->index
);
497 reg
= TEMP_TMIN_REG(sattr
->index
);
500 reg
= TEMP_THERM_REG(sattr
->index
);
503 if (sattr
->index
!= 2)
504 reg
= REG_REMOTE1_HYSTERSIS
;
506 reg
= REG_REMOTE2_HYSTERSIS
;
511 i2c_smbus_write_byte_data(client
, reg
, out
);
513 mutex_unlock(&data
->lock
);
517 /* Table of autorange values - the user will write the value in millidegrees,
518 and we'll convert it */
519 static const int autorange_table
[] = {
520 2000, 2500, 3330, 4000, 5000, 6670, 8000,
521 10000, 13330, 16000, 20000, 26670, 32000, 40000,
525 static ssize_t
show_point2(struct device
*dev
, struct device_attribute
*attr
,
528 struct adt7475_data
*data
= adt7475_update_device(dev
);
529 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
532 mutex_lock(&data
->lock
);
533 out
= (data
->range
[sattr
->index
] >> 4) & 0x0F;
534 val
= reg2temp(data
, data
->temp
[AUTOMIN
][sattr
->index
]);
535 mutex_unlock(&data
->lock
);
537 return sprintf(buf
, "%d\n", val
+ autorange_table
[out
]);
540 static ssize_t
set_point2(struct device
*dev
, struct device_attribute
*attr
,
541 const char *buf
, size_t count
)
543 struct i2c_client
*client
= to_i2c_client(dev
);
544 struct adt7475_data
*data
= i2c_get_clientdata(client
);
545 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
549 if (kstrtol(buf
, 10, &val
))
552 mutex_lock(&data
->lock
);
554 /* Get a fresh copy of the needed registers */
555 data
->config5
= adt7475_read(REG_CONFIG5
);
556 data
->temp
[AUTOMIN
][sattr
->index
] =
557 adt7475_read(TEMP_TMIN_REG(sattr
->index
)) << 2;
558 data
->range
[sattr
->index
] =
559 adt7475_read(TEMP_TRANGE_REG(sattr
->index
));
561 /* The user will write an absolute value, so subtract the start point
562 to figure the range */
563 temp
= reg2temp(data
, data
->temp
[AUTOMIN
][sattr
->index
]);
564 val
= SENSORS_LIMIT(val
, temp
+ autorange_table
[0],
565 temp
+ autorange_table
[ARRAY_SIZE(autorange_table
) - 1]);
568 /* Find the nearest table entry to what the user wrote */
569 val
= find_nearest(val
, autorange_table
, ARRAY_SIZE(autorange_table
));
571 data
->range
[sattr
->index
] &= ~0xF0;
572 data
->range
[sattr
->index
] |= val
<< 4;
574 i2c_smbus_write_byte_data(client
, TEMP_TRANGE_REG(sattr
->index
),
575 data
->range
[sattr
->index
]);
577 mutex_unlock(&data
->lock
);
581 static ssize_t
show_tach(struct device
*dev
, struct device_attribute
*attr
,
584 struct adt7475_data
*data
= adt7475_update_device(dev
);
585 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
588 if (sattr
->nr
== ALARM
)
589 out
= (data
->alarms
>> (sattr
->index
+ 10)) & 1;
591 out
= tach2rpm(data
->tach
[sattr
->nr
][sattr
->index
]);
593 return sprintf(buf
, "%d\n", out
);
596 static ssize_t
set_tach(struct device
*dev
, struct device_attribute
*attr
,
597 const char *buf
, size_t count
)
600 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
601 struct i2c_client
*client
= to_i2c_client(dev
);
602 struct adt7475_data
*data
= i2c_get_clientdata(client
);
605 if (kstrtoul(buf
, 10, &val
))
608 mutex_lock(&data
->lock
);
610 data
->tach
[MIN
][sattr
->index
] = rpm2tach(val
);
612 adt7475_write_word(client
, TACH_MIN_REG(sattr
->index
),
613 data
->tach
[MIN
][sattr
->index
]);
615 mutex_unlock(&data
->lock
);
619 static ssize_t
show_pwm(struct device
*dev
, struct device_attribute
*attr
,
622 struct adt7475_data
*data
= adt7475_update_device(dev
);
623 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
625 return sprintf(buf
, "%d\n", data
->pwm
[sattr
->nr
][sattr
->index
]);
628 static ssize_t
show_pwmchan(struct device
*dev
, struct device_attribute
*attr
,
631 struct adt7475_data
*data
= adt7475_update_device(dev
);
632 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
634 return sprintf(buf
, "%d\n", data
->pwmchan
[sattr
->index
]);
637 static ssize_t
show_pwmctrl(struct device
*dev
, struct device_attribute
*attr
,
640 struct adt7475_data
*data
= adt7475_update_device(dev
);
641 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
643 return sprintf(buf
, "%d\n", data
->pwmctl
[sattr
->index
]);
646 static ssize_t
set_pwm(struct device
*dev
, struct device_attribute
*attr
,
647 const char *buf
, size_t count
)
650 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
651 struct i2c_client
*client
= to_i2c_client(dev
);
652 struct adt7475_data
*data
= i2c_get_clientdata(client
);
653 unsigned char reg
= 0;
656 if (kstrtol(buf
, 10, &val
))
659 mutex_lock(&data
->lock
);
663 /* Get a fresh value for CONTROL */
664 data
->pwm
[CONTROL
][sattr
->index
] =
665 adt7475_read(PWM_CONFIG_REG(sattr
->index
));
667 /* If we are not in manual mode, then we shouldn't allow
668 * the user to set the pwm speed */
669 if (((data
->pwm
[CONTROL
][sattr
->index
] >> 5) & 7) != 7) {
670 mutex_unlock(&data
->lock
);
674 reg
= PWM_REG(sattr
->index
);
678 reg
= PWM_MIN_REG(sattr
->index
);
682 reg
= PWM_MAX_REG(sattr
->index
);
686 data
->pwm
[sattr
->nr
][sattr
->index
] = SENSORS_LIMIT(val
, 0, 0xFF);
687 i2c_smbus_write_byte_data(client
, reg
,
688 data
->pwm
[sattr
->nr
][sattr
->index
]);
690 mutex_unlock(&data
->lock
);
695 /* Called by set_pwmctrl and set_pwmchan */
697 static int hw_set_pwm(struct i2c_client
*client
, int index
,
698 unsigned int pwmctl
, unsigned int pwmchan
)
700 struct adt7475_data
*data
= i2c_get_clientdata(client
);
705 val
= 0x03; /* Run at full speed */
708 val
= 0x07; /* Manual mode */
713 /* Remote1 controls PWM */
717 /* local controls PWM */
721 /* remote2 controls PWM */
725 /* local/remote2 control PWM */
729 /* All three control PWM */
740 data
->pwmctl
[index
] = pwmctl
;
741 data
->pwmchan
[index
] = pwmchan
;
743 data
->pwm
[CONTROL
][index
] &= ~0xE0;
744 data
->pwm
[CONTROL
][index
] |= (val
& 7) << 5;
746 i2c_smbus_write_byte_data(client
, PWM_CONFIG_REG(index
),
747 data
->pwm
[CONTROL
][index
]);
752 static ssize_t
set_pwmchan(struct device
*dev
, struct device_attribute
*attr
,
753 const char *buf
, size_t count
)
755 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
756 struct i2c_client
*client
= to_i2c_client(dev
);
757 struct adt7475_data
*data
= i2c_get_clientdata(client
);
761 if (kstrtol(buf
, 10, &val
))
764 mutex_lock(&data
->lock
);
765 /* Read Modify Write PWM values */
766 adt7475_read_pwm(client
, sattr
->index
);
767 r
= hw_set_pwm(client
, sattr
->index
, data
->pwmctl
[sattr
->index
], val
);
770 mutex_unlock(&data
->lock
);
775 static ssize_t
set_pwmctrl(struct device
*dev
, struct device_attribute
*attr
,
776 const char *buf
, size_t count
)
778 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
779 struct i2c_client
*client
= to_i2c_client(dev
);
780 struct adt7475_data
*data
= i2c_get_clientdata(client
);
784 if (kstrtol(buf
, 10, &val
))
787 mutex_lock(&data
->lock
);
788 /* Read Modify Write PWM values */
789 adt7475_read_pwm(client
, sattr
->index
);
790 r
= hw_set_pwm(client
, sattr
->index
, val
, data
->pwmchan
[sattr
->index
]);
793 mutex_unlock(&data
->lock
);
798 /* List of frequencies for the PWM */
799 static const int pwmfreq_table
[] = {
800 11, 14, 22, 29, 35, 44, 58, 88
803 static ssize_t
show_pwmfreq(struct device
*dev
, struct device_attribute
*attr
,
806 struct adt7475_data
*data
= adt7475_update_device(dev
);
807 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
809 return sprintf(buf
, "%d\n",
810 pwmfreq_table
[data
->range
[sattr
->index
] & 7]);
813 static ssize_t
set_pwmfreq(struct device
*dev
, struct device_attribute
*attr
,
814 const char *buf
, size_t count
)
816 struct sensor_device_attribute_2
*sattr
= to_sensor_dev_attr_2(attr
);
817 struct i2c_client
*client
= to_i2c_client(dev
);
818 struct adt7475_data
*data
= i2c_get_clientdata(client
);
822 if (kstrtol(buf
, 10, &val
))
825 out
= find_nearest(val
, pwmfreq_table
, ARRAY_SIZE(pwmfreq_table
));
827 mutex_lock(&data
->lock
);
829 data
->range
[sattr
->index
] =
830 adt7475_read(TEMP_TRANGE_REG(sattr
->index
));
831 data
->range
[sattr
->index
] &= ~7;
832 data
->range
[sattr
->index
] |= out
;
834 i2c_smbus_write_byte_data(client
, TEMP_TRANGE_REG(sattr
->index
),
835 data
->range
[sattr
->index
]);
837 mutex_unlock(&data
->lock
);
841 static ssize_t
show_pwm_at_crit(struct device
*dev
,
842 struct device_attribute
*devattr
, char *buf
)
844 struct adt7475_data
*data
= adt7475_update_device(dev
);
845 return sprintf(buf
, "%d\n", !!(data
->config4
& CONFIG4_MAXDUTY
));
848 static ssize_t
set_pwm_at_crit(struct device
*dev
,
849 struct device_attribute
*devattr
,
850 const char *buf
, size_t count
)
852 struct i2c_client
*client
= to_i2c_client(dev
);
853 struct adt7475_data
*data
= i2c_get_clientdata(client
);
856 if (kstrtol(buf
, 10, &val
))
858 if (val
!= 0 && val
!= 1)
861 mutex_lock(&data
->lock
);
862 data
->config4
= i2c_smbus_read_byte_data(client
, REG_CONFIG4
);
864 data
->config4
|= CONFIG4_MAXDUTY
;
866 data
->config4
&= ~CONFIG4_MAXDUTY
;
867 i2c_smbus_write_byte_data(client
, REG_CONFIG4
, data
->config4
);
868 mutex_unlock(&data
->lock
);
873 static ssize_t
show_vrm(struct device
*dev
, struct device_attribute
*devattr
,
876 struct adt7475_data
*data
= dev_get_drvdata(dev
);
877 return sprintf(buf
, "%d\n", (int)data
->vrm
);
880 static ssize_t
set_vrm(struct device
*dev
, struct device_attribute
*devattr
,
881 const char *buf
, size_t count
)
883 struct adt7475_data
*data
= dev_get_drvdata(dev
);
886 if (kstrtol(buf
, 10, &val
))
888 if (val
< 0 || val
> 255)
895 static ssize_t
show_vid(struct device
*dev
, struct device_attribute
*devattr
,
898 struct adt7475_data
*data
= adt7475_update_device(dev
);
899 return sprintf(buf
, "%d\n", vid_from_reg(data
->vid
, data
->vrm
));
902 static SENSOR_DEVICE_ATTR_2(in0_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 0);
903 static SENSOR_DEVICE_ATTR_2(in0_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
904 set_voltage
, MAX
, 0);
905 static SENSOR_DEVICE_ATTR_2(in0_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
906 set_voltage
, MIN
, 0);
907 static SENSOR_DEVICE_ATTR_2(in0_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 0);
908 static SENSOR_DEVICE_ATTR_2(in1_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 1);
909 static SENSOR_DEVICE_ATTR_2(in1_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
910 set_voltage
, MAX
, 1);
911 static SENSOR_DEVICE_ATTR_2(in1_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
912 set_voltage
, MIN
, 1);
913 static SENSOR_DEVICE_ATTR_2(in1_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 1);
914 static SENSOR_DEVICE_ATTR_2(in2_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 2);
915 static SENSOR_DEVICE_ATTR_2(in2_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
916 set_voltage
, MAX
, 2);
917 static SENSOR_DEVICE_ATTR_2(in2_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
918 set_voltage
, MIN
, 2);
919 static SENSOR_DEVICE_ATTR_2(in2_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 2);
920 static SENSOR_DEVICE_ATTR_2(in3_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 3);
921 static SENSOR_DEVICE_ATTR_2(in3_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
922 set_voltage
, MAX
, 3);
923 static SENSOR_DEVICE_ATTR_2(in3_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
924 set_voltage
, MIN
, 3);
925 static SENSOR_DEVICE_ATTR_2(in3_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 3);
926 static SENSOR_DEVICE_ATTR_2(in4_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 4);
927 static SENSOR_DEVICE_ATTR_2(in4_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
928 set_voltage
, MAX
, 4);
929 static SENSOR_DEVICE_ATTR_2(in4_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
930 set_voltage
, MIN
, 4);
931 static SENSOR_DEVICE_ATTR_2(in4_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 8);
932 static SENSOR_DEVICE_ATTR_2(in5_input
, S_IRUGO
, show_voltage
, NULL
, INPUT
, 5);
933 static SENSOR_DEVICE_ATTR_2(in5_max
, S_IRUGO
| S_IWUSR
, show_voltage
,
934 set_voltage
, MAX
, 5);
935 static SENSOR_DEVICE_ATTR_2(in5_min
, S_IRUGO
| S_IWUSR
, show_voltage
,
936 set_voltage
, MIN
, 5);
937 static SENSOR_DEVICE_ATTR_2(in5_alarm
, S_IRUGO
, show_voltage
, NULL
, ALARM
, 31);
938 static SENSOR_DEVICE_ATTR_2(temp1_input
, S_IRUGO
, show_temp
, NULL
, INPUT
, 0);
939 static SENSOR_DEVICE_ATTR_2(temp1_alarm
, S_IRUGO
, show_temp
, NULL
, ALARM
, 0);
940 static SENSOR_DEVICE_ATTR_2(temp1_fault
, S_IRUGO
, show_temp
, NULL
, FAULT
, 0);
941 static SENSOR_DEVICE_ATTR_2(temp1_max
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
943 static SENSOR_DEVICE_ATTR_2(temp1_min
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
945 static SENSOR_DEVICE_ATTR_2(temp1_offset
, S_IRUGO
| S_IWUSR
, show_temp
,
946 set_temp
, OFFSET
, 0);
947 static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp
, S_IRUGO
| S_IWUSR
,
948 show_temp
, set_temp
, AUTOMIN
, 0);
949 static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp
, S_IRUGO
| S_IWUSR
,
950 show_point2
, set_point2
, 0, 0);
951 static SENSOR_DEVICE_ATTR_2(temp1_crit
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
953 static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst
, S_IRUGO
| S_IWUSR
, show_temp
,
954 set_temp
, HYSTERSIS
, 0);
955 static SENSOR_DEVICE_ATTR_2(temp2_input
, S_IRUGO
, show_temp
, NULL
, INPUT
, 1);
956 static SENSOR_DEVICE_ATTR_2(temp2_alarm
, S_IRUGO
, show_temp
, NULL
, ALARM
, 1);
957 static SENSOR_DEVICE_ATTR_2(temp2_max
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
959 static SENSOR_DEVICE_ATTR_2(temp2_min
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
961 static SENSOR_DEVICE_ATTR_2(temp2_offset
, S_IRUGO
| S_IWUSR
, show_temp
,
962 set_temp
, OFFSET
, 1);
963 static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp
, S_IRUGO
| S_IWUSR
,
964 show_temp
, set_temp
, AUTOMIN
, 1);
965 static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp
, S_IRUGO
| S_IWUSR
,
966 show_point2
, set_point2
, 0, 1);
967 static SENSOR_DEVICE_ATTR_2(temp2_crit
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
969 static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst
, S_IRUGO
| S_IWUSR
, show_temp
,
970 set_temp
, HYSTERSIS
, 1);
971 static SENSOR_DEVICE_ATTR_2(temp3_input
, S_IRUGO
, show_temp
, NULL
, INPUT
, 2);
972 static SENSOR_DEVICE_ATTR_2(temp3_alarm
, S_IRUGO
, show_temp
, NULL
, ALARM
, 2);
973 static SENSOR_DEVICE_ATTR_2(temp3_fault
, S_IRUGO
, show_temp
, NULL
, FAULT
, 2);
974 static SENSOR_DEVICE_ATTR_2(temp3_max
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
976 static SENSOR_DEVICE_ATTR_2(temp3_min
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
978 static SENSOR_DEVICE_ATTR_2(temp3_offset
, S_IRUGO
| S_IWUSR
, show_temp
,
979 set_temp
, OFFSET
, 2);
980 static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp
, S_IRUGO
| S_IWUSR
,
981 show_temp
, set_temp
, AUTOMIN
, 2);
982 static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp
, S_IRUGO
| S_IWUSR
,
983 show_point2
, set_point2
, 0, 2);
984 static SENSOR_DEVICE_ATTR_2(temp3_crit
, S_IRUGO
| S_IWUSR
, show_temp
, set_temp
,
986 static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst
, S_IRUGO
| S_IWUSR
, show_temp
,
987 set_temp
, HYSTERSIS
, 2);
988 static SENSOR_DEVICE_ATTR_2(fan1_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 0);
989 static SENSOR_DEVICE_ATTR_2(fan1_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
991 static SENSOR_DEVICE_ATTR_2(fan1_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 0);
992 static SENSOR_DEVICE_ATTR_2(fan2_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 1);
993 static SENSOR_DEVICE_ATTR_2(fan2_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
995 static SENSOR_DEVICE_ATTR_2(fan2_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 1);
996 static SENSOR_DEVICE_ATTR_2(fan3_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 2);
997 static SENSOR_DEVICE_ATTR_2(fan3_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
999 static SENSOR_DEVICE_ATTR_2(fan3_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 2);
1000 static SENSOR_DEVICE_ATTR_2(fan4_input
, S_IRUGO
, show_tach
, NULL
, INPUT
, 3);
1001 static SENSOR_DEVICE_ATTR_2(fan4_min
, S_IRUGO
| S_IWUSR
, show_tach
, set_tach
,
1003 static SENSOR_DEVICE_ATTR_2(fan4_alarm
, S_IRUGO
, show_tach
, NULL
, ALARM
, 3);
1004 static SENSOR_DEVICE_ATTR_2(pwm1
, S_IRUGO
| S_IWUSR
, show_pwm
, set_pwm
, INPUT
,
1006 static SENSOR_DEVICE_ATTR_2(pwm1_freq
, S_IRUGO
| S_IWUSR
, show_pwmfreq
,
1007 set_pwmfreq
, INPUT
, 0);
1008 static SENSOR_DEVICE_ATTR_2(pwm1_enable
, S_IRUGO
| S_IWUSR
, show_pwmctrl
,
1009 set_pwmctrl
, INPUT
, 0);
1010 static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp
, S_IRUGO
| S_IWUSR
,
1011 show_pwmchan
, set_pwmchan
, INPUT
, 0);
1012 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1014 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1016 static SENSOR_DEVICE_ATTR_2(pwm2
, S_IRUGO
| S_IWUSR
, show_pwm
, set_pwm
, INPUT
,
1018 static SENSOR_DEVICE_ATTR_2(pwm2_freq
, S_IRUGO
| S_IWUSR
, show_pwmfreq
,
1019 set_pwmfreq
, INPUT
, 1);
1020 static SENSOR_DEVICE_ATTR_2(pwm2_enable
, S_IRUGO
| S_IWUSR
, show_pwmctrl
,
1021 set_pwmctrl
, INPUT
, 1);
1022 static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp
, S_IRUGO
| S_IWUSR
,
1023 show_pwmchan
, set_pwmchan
, INPUT
, 1);
1024 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1026 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1028 static SENSOR_DEVICE_ATTR_2(pwm3
, S_IRUGO
| S_IWUSR
, show_pwm
, set_pwm
, INPUT
,
1030 static SENSOR_DEVICE_ATTR_2(pwm3_freq
, S_IRUGO
| S_IWUSR
, show_pwmfreq
,
1031 set_pwmfreq
, INPUT
, 2);
1032 static SENSOR_DEVICE_ATTR_2(pwm3_enable
, S_IRUGO
| S_IWUSR
, show_pwmctrl
,
1033 set_pwmctrl
, INPUT
, 2);
1034 static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp
, S_IRUGO
| S_IWUSR
,
1035 show_pwmchan
, set_pwmchan
, INPUT
, 2);
1036 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1038 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm
, S_IRUGO
| S_IWUSR
, show_pwm
,
1041 /* Non-standard name, might need revisiting */
1042 static DEVICE_ATTR(pwm_use_point2_pwm_at_crit
, S_IWUSR
| S_IRUGO
,
1043 show_pwm_at_crit
, set_pwm_at_crit
);
1045 static DEVICE_ATTR(vrm
, S_IWUSR
| S_IRUGO
, show_vrm
, set_vrm
);
1046 static DEVICE_ATTR(cpu0_vid
, S_IRUGO
, show_vid
, NULL
);
1048 static struct attribute
*adt7475_attrs
[] = {
1049 &sensor_dev_attr_in1_input
.dev_attr
.attr
,
1050 &sensor_dev_attr_in1_max
.dev_attr
.attr
,
1051 &sensor_dev_attr_in1_min
.dev_attr
.attr
,
1052 &sensor_dev_attr_in1_alarm
.dev_attr
.attr
,
1053 &sensor_dev_attr_in2_input
.dev_attr
.attr
,
1054 &sensor_dev_attr_in2_max
.dev_attr
.attr
,
1055 &sensor_dev_attr_in2_min
.dev_attr
.attr
,
1056 &sensor_dev_attr_in2_alarm
.dev_attr
.attr
,
1057 &sensor_dev_attr_temp1_input
.dev_attr
.attr
,
1058 &sensor_dev_attr_temp1_alarm
.dev_attr
.attr
,
1059 &sensor_dev_attr_temp1_fault
.dev_attr
.attr
,
1060 &sensor_dev_attr_temp1_max
.dev_attr
.attr
,
1061 &sensor_dev_attr_temp1_min
.dev_attr
.attr
,
1062 &sensor_dev_attr_temp1_offset
.dev_attr
.attr
,
1063 &sensor_dev_attr_temp1_auto_point1_temp
.dev_attr
.attr
,
1064 &sensor_dev_attr_temp1_auto_point2_temp
.dev_attr
.attr
,
1065 &sensor_dev_attr_temp1_crit
.dev_attr
.attr
,
1066 &sensor_dev_attr_temp1_crit_hyst
.dev_attr
.attr
,
1067 &sensor_dev_attr_temp2_input
.dev_attr
.attr
,
1068 &sensor_dev_attr_temp2_alarm
.dev_attr
.attr
,
1069 &sensor_dev_attr_temp2_max
.dev_attr
.attr
,
1070 &sensor_dev_attr_temp2_min
.dev_attr
.attr
,
1071 &sensor_dev_attr_temp2_offset
.dev_attr
.attr
,
1072 &sensor_dev_attr_temp2_auto_point1_temp
.dev_attr
.attr
,
1073 &sensor_dev_attr_temp2_auto_point2_temp
.dev_attr
.attr
,
1074 &sensor_dev_attr_temp2_crit
.dev_attr
.attr
,
1075 &sensor_dev_attr_temp2_crit_hyst
.dev_attr
.attr
,
1076 &sensor_dev_attr_temp3_input
.dev_attr
.attr
,
1077 &sensor_dev_attr_temp3_fault
.dev_attr
.attr
,
1078 &sensor_dev_attr_temp3_alarm
.dev_attr
.attr
,
1079 &sensor_dev_attr_temp3_max
.dev_attr
.attr
,
1080 &sensor_dev_attr_temp3_min
.dev_attr
.attr
,
1081 &sensor_dev_attr_temp3_offset
.dev_attr
.attr
,
1082 &sensor_dev_attr_temp3_auto_point1_temp
.dev_attr
.attr
,
1083 &sensor_dev_attr_temp3_auto_point2_temp
.dev_attr
.attr
,
1084 &sensor_dev_attr_temp3_crit
.dev_attr
.attr
,
1085 &sensor_dev_attr_temp3_crit_hyst
.dev_attr
.attr
,
1086 &sensor_dev_attr_fan1_input
.dev_attr
.attr
,
1087 &sensor_dev_attr_fan1_min
.dev_attr
.attr
,
1088 &sensor_dev_attr_fan1_alarm
.dev_attr
.attr
,
1089 &sensor_dev_attr_fan2_input
.dev_attr
.attr
,
1090 &sensor_dev_attr_fan2_min
.dev_attr
.attr
,
1091 &sensor_dev_attr_fan2_alarm
.dev_attr
.attr
,
1092 &sensor_dev_attr_fan3_input
.dev_attr
.attr
,
1093 &sensor_dev_attr_fan3_min
.dev_attr
.attr
,
1094 &sensor_dev_attr_fan3_alarm
.dev_attr
.attr
,
1095 &sensor_dev_attr_pwm1
.dev_attr
.attr
,
1096 &sensor_dev_attr_pwm1_freq
.dev_attr
.attr
,
1097 &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
,
1098 &sensor_dev_attr_pwm1_auto_channels_temp
.dev_attr
.attr
,
1099 &sensor_dev_attr_pwm1_auto_point1_pwm
.dev_attr
.attr
,
1100 &sensor_dev_attr_pwm1_auto_point2_pwm
.dev_attr
.attr
,
1101 &sensor_dev_attr_pwm3
.dev_attr
.attr
,
1102 &sensor_dev_attr_pwm3_freq
.dev_attr
.attr
,
1103 &sensor_dev_attr_pwm3_enable
.dev_attr
.attr
,
1104 &sensor_dev_attr_pwm3_auto_channels_temp
.dev_attr
.attr
,
1105 &sensor_dev_attr_pwm3_auto_point1_pwm
.dev_attr
.attr
,
1106 &sensor_dev_attr_pwm3_auto_point2_pwm
.dev_attr
.attr
,
1107 &dev_attr_pwm_use_point2_pwm_at_crit
.attr
,
1111 static struct attribute
*fan4_attrs
[] = {
1112 &sensor_dev_attr_fan4_input
.dev_attr
.attr
,
1113 &sensor_dev_attr_fan4_min
.dev_attr
.attr
,
1114 &sensor_dev_attr_fan4_alarm
.dev_attr
.attr
,
1118 static struct attribute
*pwm2_attrs
[] = {
1119 &sensor_dev_attr_pwm2
.dev_attr
.attr
,
1120 &sensor_dev_attr_pwm2_freq
.dev_attr
.attr
,
1121 &sensor_dev_attr_pwm2_enable
.dev_attr
.attr
,
1122 &sensor_dev_attr_pwm2_auto_channels_temp
.dev_attr
.attr
,
1123 &sensor_dev_attr_pwm2_auto_point1_pwm
.dev_attr
.attr
,
1124 &sensor_dev_attr_pwm2_auto_point2_pwm
.dev_attr
.attr
,
1128 static struct attribute
*in0_attrs
[] = {
1129 &sensor_dev_attr_in0_input
.dev_attr
.attr
,
1130 &sensor_dev_attr_in0_max
.dev_attr
.attr
,
1131 &sensor_dev_attr_in0_min
.dev_attr
.attr
,
1132 &sensor_dev_attr_in0_alarm
.dev_attr
.attr
,
1136 static struct attribute
*in3_attrs
[] = {
1137 &sensor_dev_attr_in3_input
.dev_attr
.attr
,
1138 &sensor_dev_attr_in3_max
.dev_attr
.attr
,
1139 &sensor_dev_attr_in3_min
.dev_attr
.attr
,
1140 &sensor_dev_attr_in3_alarm
.dev_attr
.attr
,
1144 static struct attribute
*in4_attrs
[] = {
1145 &sensor_dev_attr_in4_input
.dev_attr
.attr
,
1146 &sensor_dev_attr_in4_max
.dev_attr
.attr
,
1147 &sensor_dev_attr_in4_min
.dev_attr
.attr
,
1148 &sensor_dev_attr_in4_alarm
.dev_attr
.attr
,
1152 static struct attribute
*in5_attrs
[] = {
1153 &sensor_dev_attr_in5_input
.dev_attr
.attr
,
1154 &sensor_dev_attr_in5_max
.dev_attr
.attr
,
1155 &sensor_dev_attr_in5_min
.dev_attr
.attr
,
1156 &sensor_dev_attr_in5_alarm
.dev_attr
.attr
,
1160 static struct attribute
*vid_attrs
[] = {
1161 &dev_attr_cpu0_vid
.attr
,
1166 static struct attribute_group adt7475_attr_group
= { .attrs
= adt7475_attrs
};
1167 static struct attribute_group fan4_attr_group
= { .attrs
= fan4_attrs
};
1168 static struct attribute_group pwm2_attr_group
= { .attrs
= pwm2_attrs
};
1169 static struct attribute_group in0_attr_group
= { .attrs
= in0_attrs
};
1170 static struct attribute_group in3_attr_group
= { .attrs
= in3_attrs
};
1171 static struct attribute_group in4_attr_group
= { .attrs
= in4_attrs
};
1172 static struct attribute_group in5_attr_group
= { .attrs
= in5_attrs
};
1173 static struct attribute_group vid_attr_group
= { .attrs
= vid_attrs
};
1175 static int adt7475_detect(struct i2c_client
*client
,
1176 struct i2c_board_info
*info
)
1178 struct i2c_adapter
*adapter
= client
->adapter
;
1179 int vendid
, devid
, devid2
;
1182 if (!i2c_check_functionality(adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
1185 vendid
= adt7475_read(REG_VENDID
);
1186 devid2
= adt7475_read(REG_DEVID2
);
1187 if (vendid
!= 0x41 || /* Analog Devices */
1188 (devid2
& 0xf8) != 0x68)
1191 devid
= adt7475_read(REG_DEVID
);
1194 else if (devid
== 0x75 && client
->addr
== 0x2e)
1196 else if (devid
== 0x76)
1198 else if ((devid2
& 0xfc) == 0x6c)
1201 dev_dbg(&adapter
->dev
,
1202 "Couldn't detect an ADT7473/75/76/90 part at "
1203 "0x%02x\n", (unsigned int)client
->addr
);
1207 strlcpy(info
->type
, name
, I2C_NAME_SIZE
);
1212 static void adt7475_remove_files(struct i2c_client
*client
,
1213 struct adt7475_data
*data
)
1215 sysfs_remove_group(&client
->dev
.kobj
, &adt7475_attr_group
);
1217 sysfs_remove_group(&client
->dev
.kobj
, &fan4_attr_group
);
1219 sysfs_remove_group(&client
->dev
.kobj
, &pwm2_attr_group
);
1220 if (data
->has_voltage
& (1 << 0))
1221 sysfs_remove_group(&client
->dev
.kobj
, &in0_attr_group
);
1222 if (data
->has_voltage
& (1 << 3))
1223 sysfs_remove_group(&client
->dev
.kobj
, &in3_attr_group
);
1224 if (data
->has_voltage
& (1 << 4))
1225 sysfs_remove_group(&client
->dev
.kobj
, &in4_attr_group
);
1226 if (data
->has_voltage
& (1 << 5))
1227 sysfs_remove_group(&client
->dev
.kobj
, &in5_attr_group
);
1229 sysfs_remove_group(&client
->dev
.kobj
, &vid_attr_group
);
1232 static int adt7475_probe(struct i2c_client
*client
,
1233 const struct i2c_device_id
*id
)
1235 static const char *names
[] = {
1236 [adt7473
] = "ADT7473",
1237 [adt7475
] = "ADT7475",
1238 [adt7476
] = "ADT7476",
1239 [adt7490
] = "ADT7490",
1242 struct adt7475_data
*data
;
1243 int i
, ret
= 0, revision
;
1244 u8 config2
, config3
;
1246 data
= kzalloc(sizeof(*data
), GFP_KERNEL
);
1250 mutex_init(&data
->lock
);
1251 i2c_set_clientdata(client
, data
);
1253 /* Initialize device-specific values */
1254 switch (id
->driver_data
) {
1256 data
->has_voltage
= 0x0e; /* in1 to in3 */
1257 revision
= adt7475_read(REG_DEVID2
) & 0x07;
1260 data
->has_voltage
= 0x3e; /* in1 to in5 */
1261 revision
= adt7475_read(REG_DEVID2
) & 0x03;
1262 if (revision
== 0x03)
1263 revision
+= adt7475_read(REG_DEVREV2
);
1266 data
->has_voltage
= 0x06; /* in1, in2 */
1267 revision
= adt7475_read(REG_DEVID2
) & 0x07;
1270 config3
= adt7475_read(REG_CONFIG3
);
1271 /* Pin PWM2 may alternatively be used for ALERT output */
1272 if (!(config3
& CONFIG3_SMBALERT
))
1274 /* Meaning of this bit is inverted for the ADT7473-1 */
1275 if (id
->driver_data
== adt7473
&& revision
>= 1)
1276 data
->has_pwm2
= !data
->has_pwm2
;
1278 data
->config4
= adt7475_read(REG_CONFIG4
);
1279 /* Pin TACH4 may alternatively be used for THERM */
1280 if ((data
->config4
& CONFIG4_PINFUNC
) == 0x0)
1283 /* THERM configuration is more complex on the ADT7476 and ADT7490,
1284 because 2 different pins (TACH4 and +2.5 Vin) can be used for
1286 if (id
->driver_data
== adt7490
) {
1287 if ((data
->config4
& CONFIG4_PINFUNC
) == 0x1 &&
1288 !(config3
& CONFIG3_THERM
))
1291 if (id
->driver_data
== adt7476
|| id
->driver_data
== adt7490
) {
1292 if (!(config3
& CONFIG3_THERM
) ||
1293 (data
->config4
& CONFIG4_PINFUNC
) == 0x1)
1294 data
->has_voltage
|= (1 << 0); /* in0 */
1297 /* On the ADT7476, the +12V input pin may instead be used as VID5,
1298 and VID pins may alternatively be used as GPIO */
1299 if (id
->driver_data
== adt7476
) {
1300 u8 vid
= adt7475_read(REG_VID
);
1301 if (!(vid
& VID_VIDSEL
))
1302 data
->has_voltage
|= (1 << 4); /* in4 */
1304 data
->has_vid
= !(adt7475_read(REG_CONFIG5
) & CONFIG5_VIDGPIO
);
1307 /* Voltage attenuators can be bypassed, globally or individually */
1308 config2
= adt7475_read(REG_CONFIG2
);
1309 if (config2
& CONFIG2_ATTN
) {
1310 data
->bypass_attn
= (0x3 << 3) | 0x3;
1312 data
->bypass_attn
= ((data
->config4
& CONFIG4_ATTN_IN10
) >> 4) |
1313 ((data
->config4
& CONFIG4_ATTN_IN43
) >> 3);
1315 data
->bypass_attn
&= data
->has_voltage
;
1317 /* Call adt7475_read_pwm for all pwm's as this will reprogram any
1318 pwm's which are disabled to manual mode with 0% duty cycle */
1319 for (i
= 0; i
< ADT7475_PWM_COUNT
; i
++)
1320 adt7475_read_pwm(client
, i
);
1322 ret
= sysfs_create_group(&client
->dev
.kobj
, &adt7475_attr_group
);
1326 /* Features that can be disabled individually */
1327 if (data
->has_fan4
) {
1328 ret
= sysfs_create_group(&client
->dev
.kobj
, &fan4_attr_group
);
1332 if (data
->has_pwm2
) {
1333 ret
= sysfs_create_group(&client
->dev
.kobj
, &pwm2_attr_group
);
1337 if (data
->has_voltage
& (1 << 0)) {
1338 ret
= sysfs_create_group(&client
->dev
.kobj
, &in0_attr_group
);
1342 if (data
->has_voltage
& (1 << 3)) {
1343 ret
= sysfs_create_group(&client
->dev
.kobj
, &in3_attr_group
);
1347 if (data
->has_voltage
& (1 << 4)) {
1348 ret
= sysfs_create_group(&client
->dev
.kobj
, &in4_attr_group
);
1352 if (data
->has_voltage
& (1 << 5)) {
1353 ret
= sysfs_create_group(&client
->dev
.kobj
, &in5_attr_group
);
1357 if (data
->has_vid
) {
1358 data
->vrm
= vid_which_vrm();
1359 ret
= sysfs_create_group(&client
->dev
.kobj
, &vid_attr_group
);
1364 data
->hwmon_dev
= hwmon_device_register(&client
->dev
);
1365 if (IS_ERR(data
->hwmon_dev
)) {
1366 ret
= PTR_ERR(data
->hwmon_dev
);
1370 dev_info(&client
->dev
, "%s device, revision %d\n",
1371 names
[id
->driver_data
], revision
);
1372 if ((data
->has_voltage
& 0x11) || data
->has_fan4
|| data
->has_pwm2
)
1373 dev_info(&client
->dev
, "Optional features:%s%s%s%s%s\n",
1374 (data
->has_voltage
& (1 << 0)) ? " in0" : "",
1375 (data
->has_voltage
& (1 << 4)) ? " in4" : "",
1376 data
->has_fan4
? " fan4" : "",
1377 data
->has_pwm2
? " pwm2" : "",
1378 data
->has_vid
? " vid" : "");
1379 if (data
->bypass_attn
)
1380 dev_info(&client
->dev
, "Bypassing attenuators on:%s%s%s%s\n",
1381 (data
->bypass_attn
& (1 << 0)) ? " in0" : "",
1382 (data
->bypass_attn
& (1 << 1)) ? " in1" : "",
1383 (data
->bypass_attn
& (1 << 3)) ? " in3" : "",
1384 (data
->bypass_attn
& (1 << 4)) ? " in4" : "");
1389 adt7475_remove_files(client
, data
);
1395 static int adt7475_remove(struct i2c_client
*client
)
1397 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1399 hwmon_device_unregister(data
->hwmon_dev
);
1400 adt7475_remove_files(client
, data
);
1406 static struct i2c_driver adt7475_driver
= {
1407 .class = I2C_CLASS_HWMON
,
1411 .probe
= adt7475_probe
,
1412 .remove
= adt7475_remove
,
1413 .id_table
= adt7475_id
,
1414 .detect
= adt7475_detect
,
1415 .address_list
= normal_i2c
,
1418 static void adt7475_read_hystersis(struct i2c_client
*client
)
1420 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1422 data
->temp
[HYSTERSIS
][0] = (u16
) adt7475_read(REG_REMOTE1_HYSTERSIS
);
1423 data
->temp
[HYSTERSIS
][1] = data
->temp
[HYSTERSIS
][0];
1424 data
->temp
[HYSTERSIS
][2] = (u16
) adt7475_read(REG_REMOTE2_HYSTERSIS
);
1427 static void adt7475_read_pwm(struct i2c_client
*client
, int index
)
1429 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1432 data
->pwm
[CONTROL
][index
] = adt7475_read(PWM_CONFIG_REG(index
));
1434 /* Figure out the internal value for pwmctrl and pwmchan
1435 based on the current settings */
1436 v
= (data
->pwm
[CONTROL
][index
] >> 5) & 7;
1439 data
->pwmctl
[index
] = 0;
1441 data
->pwmctl
[index
] = 1;
1443 /* The fan is disabled - we don't want to
1444 support that, so change to manual mode and
1445 set the duty cycle to 0 instead
1447 data
->pwm
[INPUT
][index
] = 0;
1448 data
->pwm
[CONTROL
][index
] &= ~0xE0;
1449 data
->pwm
[CONTROL
][index
] |= (7 << 5);
1451 i2c_smbus_write_byte_data(client
, PWM_CONFIG_REG(index
),
1452 data
->pwm
[INPUT
][index
]);
1454 i2c_smbus_write_byte_data(client
, PWM_CONFIG_REG(index
),
1455 data
->pwm
[CONTROL
][index
]);
1457 data
->pwmctl
[index
] = 1;
1459 data
->pwmctl
[index
] = 2;
1463 data
->pwmchan
[index
] = 1;
1466 data
->pwmchan
[index
] = 2;
1469 data
->pwmchan
[index
] = 4;
1472 data
->pwmchan
[index
] = 6;
1475 data
->pwmchan
[index
] = 7;
1481 static struct adt7475_data
*adt7475_update_device(struct device
*dev
)
1483 struct i2c_client
*client
= to_i2c_client(dev
);
1484 struct adt7475_data
*data
= i2c_get_clientdata(client
);
1488 mutex_lock(&data
->lock
);
1490 /* Measurement values update every 2 seconds */
1491 if (time_after(jiffies
, data
->measure_updated
+ HZ
* 2) ||
1493 data
->alarms
= adt7475_read(REG_STATUS2
) << 8;
1494 data
->alarms
|= adt7475_read(REG_STATUS1
);
1496 ext
= (adt7475_read(REG_EXTEND2
) << 8) |
1497 adt7475_read(REG_EXTEND1
);
1498 for (i
= 0; i
< ADT7475_VOLTAGE_COUNT
; i
++) {
1499 if (!(data
->has_voltage
& (1 << i
)))
1501 data
->voltage
[INPUT
][i
] =
1502 (adt7475_read(VOLTAGE_REG(i
)) << 2) |
1503 ((ext
>> (i
* 2)) & 3);
1506 for (i
= 0; i
< ADT7475_TEMP_COUNT
; i
++)
1507 data
->temp
[INPUT
][i
] =
1508 (adt7475_read(TEMP_REG(i
)) << 2) |
1509 ((ext
>> ((i
+ 5) * 2)) & 3);
1511 if (data
->has_voltage
& (1 << 5)) {
1512 data
->alarms
|= adt7475_read(REG_STATUS4
) << 24;
1513 ext
= adt7475_read(REG_EXTEND3
);
1514 data
->voltage
[INPUT
][5] = adt7475_read(REG_VTT
) << 2 |
1518 for (i
= 0; i
< ADT7475_TACH_COUNT
; i
++) {
1519 if (i
== 3 && !data
->has_fan4
)
1521 data
->tach
[INPUT
][i
] =
1522 adt7475_read_word(client
, TACH_REG(i
));
1525 /* Updated by hw when in auto mode */
1526 for (i
= 0; i
< ADT7475_PWM_COUNT
; i
++) {
1527 if (i
== 1 && !data
->has_pwm2
)
1529 data
->pwm
[INPUT
][i
] = adt7475_read(PWM_REG(i
));
1533 data
->vid
= adt7475_read(REG_VID
) & 0x3f;
1535 data
->measure_updated
= jiffies
;
1538 /* Limits and settings, should never change update every 60 seconds */
1539 if (time_after(jiffies
, data
->limits_updated
+ HZ
* 60) ||
1541 data
->config4
= adt7475_read(REG_CONFIG4
);
1542 data
->config5
= adt7475_read(REG_CONFIG5
);
1544 for (i
= 0; i
< ADT7475_VOLTAGE_COUNT
; i
++) {
1545 if (!(data
->has_voltage
& (1 << i
)))
1547 /* Adjust values so they match the input precision */
1548 data
->voltage
[MIN
][i
] =
1549 adt7475_read(VOLTAGE_MIN_REG(i
)) << 2;
1550 data
->voltage
[MAX
][i
] =
1551 adt7475_read(VOLTAGE_MAX_REG(i
)) << 2;
1554 if (data
->has_voltage
& (1 << 5)) {
1555 data
->voltage
[MIN
][5] = adt7475_read(REG_VTT_MIN
) << 2;
1556 data
->voltage
[MAX
][5] = adt7475_read(REG_VTT_MAX
) << 2;
1559 for (i
= 0; i
< ADT7475_TEMP_COUNT
; i
++) {
1560 /* Adjust values so they match the input precision */
1561 data
->temp
[MIN
][i
] =
1562 adt7475_read(TEMP_MIN_REG(i
)) << 2;
1563 data
->temp
[MAX
][i
] =
1564 adt7475_read(TEMP_MAX_REG(i
)) << 2;
1565 data
->temp
[AUTOMIN
][i
] =
1566 adt7475_read(TEMP_TMIN_REG(i
)) << 2;
1567 data
->temp
[THERM
][i
] =
1568 adt7475_read(TEMP_THERM_REG(i
)) << 2;
1569 data
->temp
[OFFSET
][i
] =
1570 adt7475_read(TEMP_OFFSET_REG(i
));
1572 adt7475_read_hystersis(client
);
1574 for (i
= 0; i
< ADT7475_TACH_COUNT
; i
++) {
1575 if (i
== 3 && !data
->has_fan4
)
1577 data
->tach
[MIN
][i
] =
1578 adt7475_read_word(client
, TACH_MIN_REG(i
));
1581 for (i
= 0; i
< ADT7475_PWM_COUNT
; i
++) {
1582 if (i
== 1 && !data
->has_pwm2
)
1584 data
->pwm
[MAX
][i
] = adt7475_read(PWM_MAX_REG(i
));
1585 data
->pwm
[MIN
][i
] = adt7475_read(PWM_MIN_REG(i
));
1586 /* Set the channel and control information */
1587 adt7475_read_pwm(client
, i
);
1590 data
->range
[0] = adt7475_read(TEMP_TRANGE_REG(0));
1591 data
->range
[1] = adt7475_read(TEMP_TRANGE_REG(1));
1592 data
->range
[2] = adt7475_read(TEMP_TRANGE_REG(2));
1594 data
->limits_updated
= jiffies
;
1598 mutex_unlock(&data
->lock
);
1603 static int __init
sensors_adt7475_init(void)
1605 return i2c_add_driver(&adt7475_driver
);
1608 static void __exit
sensors_adt7475_exit(void)
1610 i2c_del_driver(&adt7475_driver
);
1613 MODULE_AUTHOR("Advanced Micro Devices, Inc");
1614 MODULE_DESCRIPTION("adt7475 driver");
1615 MODULE_LICENSE("GPL");
1617 module_init(sensors_adt7475_init
);
1618 module_exit(sensors_adt7475_exit
);