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/err.h>
23 /* Indexes for the sysfs hooks */
34 /* These are unique identifiers for the sysfs functions - unlike the
35 numbers above, these are not also indexes into an array
41 /* 7475 Common Registers */
43 #define REG_VTT 0x1E /* ADT7490 only */
44 #define REG_EXTEND3 0x1F /* ADT7490 only */
46 #define REG_VOLTAGE_BASE 0x20
47 #define REG_TEMP_BASE 0x25
48 #define REG_TACH_BASE 0x28
49 #define REG_PWM_BASE 0x30
50 #define REG_PWM_MAX_BASE 0x38
52 #define REG_DEVID 0x3D
53 #define REG_VENDID 0x3E
54 #define REG_DEVID2 0x3F
56 #define REG_STATUS1 0x41
57 #define REG_STATUS2 0x42
59 #define REG_VOLTAGE_MIN_BASE 0x44
60 #define REG_VOLTAGE_MAX_BASE 0x45
62 #define REG_TEMP_MIN_BASE 0x4E
63 #define REG_TEMP_MAX_BASE 0x4F
65 #define REG_TACH_MIN_BASE 0x54
67 #define REG_PWM_CONFIG_BASE 0x5C
69 #define REG_TEMP_TRANGE_BASE 0x5F
71 #define REG_PWM_MIN_BASE 0x64
73 #define REG_TEMP_TMIN_BASE 0x67
74 #define REG_TEMP_THERM_BASE 0x6A
76 #define REG_REMOTE1_HYSTERSIS 0x6D
77 #define REG_REMOTE2_HYSTERSIS 0x6E
79 #define REG_TEMP_OFFSET_BASE 0x70
81 #define REG_EXTEND1 0x76
82 #define REG_EXTEND2 0x77
83 #define REG_CONFIG5 0x7C
84 #define REG_CONFIG4 0x7D
86 #define REG_STATUS4 0x81 /* ADT7490 only */
88 #define REG_VTT_MIN 0x84 /* ADT7490 only */
89 #define REG_VTT_MAX 0x86 /* ADT7490 only */
91 #define CONFIG4_MAXDUTY 0x08
93 #define CONFIG5_TWOSCOMP 0x01
94 #define CONFIG5_TEMPOFFSET 0x02
96 /* ADT7475 Settings */
98 #define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
99 #define ADT7475_TEMP_COUNT 3
100 #define ADT7475_TACH_COUNT 4
101 #define ADT7475_PWM_COUNT 3
103 /* Macro to read the registers */
105 #define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg))
107 /* Macros to easily index the registers */
109 #define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2))
110 #define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2))
112 #define PWM_REG(idx) (REG_PWM_BASE + (idx))
113 #define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx))
114 #define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx))
115 #define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx))
117 #define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx))
118 #define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2))
119 #define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2))
121 #define TEMP_REG(idx) (REG_TEMP_BASE + (idx))
122 #define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2))
123 #define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2))
124 #define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx))
125 #define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx))
126 #define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
127 #define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
129 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
131 I2C_CLIENT_INSMOD_3(adt7473, adt7475, adt7490);
133 static const struct i2c_device_id adt7475_id[] = {
134 { "adt7473", adt7473 },
135 { "adt7475", adt7475 },
136 { "adt7490", adt7490 },
139 MODULE_DEVICE_TABLE(i2c, adt7475_id);
141 struct adt7475_data {
142 struct device *hwmon_dev;
145 unsigned long measure_updated;
146 unsigned long limits_updated;
162 static struct i2c_driver adt7475_driver;
163 static struct adt7475_data *adt7475_update_device(struct device *dev);
164 static void adt7475_read_hystersis(struct i2c_client *client);
165 static void adt7475_read_pwm(struct i2c_client *client, int index);
167 /* Given a temp value, convert it to register value */
169 static inline u16 temp2reg(struct adt7475_data *data, long val)
173 if (!(data->config5 & CONFIG5_TWOSCOMP)) {
174 val = SENSORS_LIMIT(val, -64000, 191000);
175 ret = (val + 64500) / 1000;
177 val = SENSORS_LIMIT(val, -128000, 127000);
179 ret = (256500 + val) / 1000;
181 ret = (val + 500) / 1000;
187 /* Given a register value, convert it to a real temp value */
189 static inline int reg2temp(struct adt7475_data *data, u16 reg)
191 if (data->config5 & CONFIG5_TWOSCOMP) {
193 return (reg - 1024) * 250;
197 return (reg - 256) * 250;
200 static inline int tach2rpm(u16 tach)
202 if (tach == 0 || tach == 0xFFFF)
205 return (90000 * 60) / tach;
208 static inline u16 rpm2tach(unsigned long rpm)
213 return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF);
216 /* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
217 static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = {
218 { 45, 94 }, /* +2.5V */
219 { 175, 525 }, /* Vccp */
220 { 68, 71 }, /* Vcc */
221 { 93, 47 }, /* +5V */
222 { 120, 20 }, /* +12V */
223 { 45, 45 }, /* Vtt */
226 static inline int reg2volt(int channel, u16 reg)
228 const int *r = adt7473_in_scaling[channel];
230 return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024);
233 static inline u16 volt2reg(int channel, long volt)
235 const int *r = adt7473_in_scaling[channel];
238 reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
239 return SENSORS_LIMIT(reg, 0, 1023) & (0xff << 2);
242 static u16 adt7475_read_word(struct i2c_client *client, int reg)
246 val = i2c_smbus_read_byte_data(client, reg);
247 val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8);
252 static void adt7475_write_word(struct i2c_client *client, int reg, u16 val)
254 i2c_smbus_write_byte_data(client, reg + 1, val >> 8);
255 i2c_smbus_write_byte_data(client, reg, val & 0xFF);
258 /* Find the nearest value in a table - used for pwm frequency and
260 static int find_nearest(long val, const int *array, int size)
267 if (val > array[size - 1])
270 for (i = 0; i < size - 1; i++) {
273 if (val > array[i + 1])
277 b = array[i + 1] - val;
279 return (a <= b) ? i : i + 1;
285 static ssize_t show_voltage(struct device *dev, struct device_attribute *attr,
288 struct adt7475_data *data = adt7475_update_device(dev);
289 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
294 return sprintf(buf, "%d\n",
295 (data->alarms >> sattr->index) & 1);
297 val = data->voltage[sattr->nr][sattr->index];
298 return sprintf(buf, "%d\n", reg2volt(sattr->index, val));
302 static ssize_t set_voltage(struct device *dev, struct device_attribute *attr,
303 const char *buf, size_t count)
306 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
307 struct i2c_client *client = to_i2c_client(dev);
308 struct adt7475_data *data = i2c_get_clientdata(client);
312 if (strict_strtol(buf, 10, &val))
315 mutex_lock(&data->lock);
317 data->voltage[sattr->nr][sattr->index] = volt2reg(sattr->index, val);
319 if (sattr->index < ADT7475_VOLTAGE_COUNT) {
320 if (sattr->nr == MIN)
321 reg = VOLTAGE_MIN_REG(sattr->index);
323 reg = VOLTAGE_MAX_REG(sattr->index);
325 if (sattr->nr == MIN)
331 i2c_smbus_write_byte_data(client, reg,
332 data->voltage[sattr->nr][sattr->index] >> 2);
333 mutex_unlock(&data->lock);
338 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
341 struct adt7475_data *data = adt7475_update_device(dev);
342 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
347 mutex_lock(&data->lock);
348 out = data->temp[sattr->nr][sattr->index];
349 if (sattr->index != 1)
350 out = (out >> 4) & 0xF;
353 /* Show the value as an absolute number tied to
355 out = reg2temp(data, data->temp[THERM][sattr->index]) -
357 mutex_unlock(&data->lock);
361 /* Offset is always 2's complement, regardless of the
362 * setting in CONFIG5 */
363 mutex_lock(&data->lock);
364 out = (s8)data->temp[sattr->nr][sattr->index];
365 if (data->config5 & CONFIG5_TEMPOFFSET)
369 mutex_unlock(&data->lock);
373 out = (data->alarms >> (sattr->index + 4)) & 1;
377 /* Note - only for remote1 and remote2 */
378 out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000));
382 /* All other temp values are in the configured format */
383 out = reg2temp(data, data->temp[sattr->nr][sattr->index]);
386 return sprintf(buf, "%d\n", out);
389 static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
390 const char *buf, size_t count)
392 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
393 struct i2c_client *client = to_i2c_client(dev);
394 struct adt7475_data *data = i2c_get_clientdata(client);
395 unsigned char reg = 0;
400 if (strict_strtol(buf, 10, &val))
403 mutex_lock(&data->lock);
405 /* We need the config register in all cases for temp <-> reg conv. */
406 data->config5 = adt7475_read(REG_CONFIG5);
410 if (data->config5 & CONFIG5_TEMPOFFSET) {
411 val = SENSORS_LIMIT(val, -63000, 127000);
412 out = data->temp[OFFSET][sattr->index] = val / 1000;
414 val = SENSORS_LIMIT(val, -63000, 64000);
415 out = data->temp[OFFSET][sattr->index] = val / 500;
420 /* The value will be given as an absolute value, turn it
421 into an offset based on THERM */
423 /* Read fresh THERM and HYSTERSIS values from the chip */
424 data->temp[THERM][sattr->index] =
425 adt7475_read(TEMP_THERM_REG(sattr->index)) << 2;
426 adt7475_read_hystersis(client);
428 temp = reg2temp(data, data->temp[THERM][sattr->index]);
429 val = SENSORS_LIMIT(val, temp - 15000, temp);
430 val = (temp - val) / 1000;
432 if (sattr->index != 1) {
433 data->temp[HYSTERSIS][sattr->index] &= 0xF0;
434 data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4;
436 data->temp[HYSTERSIS][sattr->index] &= 0x0F;
437 data->temp[HYSTERSIS][sattr->index] |= (val & 0xF);
440 out = data->temp[HYSTERSIS][sattr->index];
444 data->temp[sattr->nr][sattr->index] = temp2reg(data, val);
446 /* We maintain an extra 2 digits of precision for simplicity
447 * - shift those back off before writing the value */
448 out = (u8) (data->temp[sattr->nr][sattr->index] >> 2);
453 reg = TEMP_MIN_REG(sattr->index);
456 reg = TEMP_MAX_REG(sattr->index);
459 reg = TEMP_OFFSET_REG(sattr->index);
462 reg = TEMP_TMIN_REG(sattr->index);
465 reg = TEMP_THERM_REG(sattr->index);
468 if (sattr->index != 2)
469 reg = REG_REMOTE1_HYSTERSIS;
471 reg = REG_REMOTE2_HYSTERSIS;
476 i2c_smbus_write_byte_data(client, reg, out);
478 mutex_unlock(&data->lock);
482 /* Table of autorange values - the user will write the value in millidegrees,
483 and we'll convert it */
484 static const int autorange_table[] = {
485 2000, 2500, 3330, 4000, 5000, 6670, 8000,
486 10000, 13330, 16000, 20000, 26670, 32000, 40000,
490 static ssize_t show_point2(struct device *dev, struct device_attribute *attr,
493 struct adt7475_data *data = adt7475_update_device(dev);
494 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
497 mutex_lock(&data->lock);
498 out = (data->range[sattr->index] >> 4) & 0x0F;
499 val = reg2temp(data, data->temp[AUTOMIN][sattr->index]);
500 mutex_unlock(&data->lock);
502 return sprintf(buf, "%d\n", val + autorange_table[out]);
505 static ssize_t set_point2(struct device *dev, struct device_attribute *attr,
506 const char *buf, size_t count)
508 struct i2c_client *client = to_i2c_client(dev);
509 struct adt7475_data *data = i2c_get_clientdata(client);
510 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
514 if (strict_strtol(buf, 10, &val))
517 mutex_lock(&data->lock);
519 /* Get a fresh copy of the needed registers */
520 data->config5 = adt7475_read(REG_CONFIG5);
521 data->temp[AUTOMIN][sattr->index] =
522 adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2;
523 data->range[sattr->index] =
524 adt7475_read(TEMP_TRANGE_REG(sattr->index));
526 /* The user will write an absolute value, so subtract the start point
527 to figure the range */
528 temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]);
529 val = SENSORS_LIMIT(val, temp + autorange_table[0],
530 temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]);
533 /* Find the nearest table entry to what the user wrote */
534 val = find_nearest(val, autorange_table, ARRAY_SIZE(autorange_table));
536 data->range[sattr->index] &= ~0xF0;
537 data->range[sattr->index] |= val << 4;
539 i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
540 data->range[sattr->index]);
542 mutex_unlock(&data->lock);
546 static ssize_t show_tach(struct device *dev, struct device_attribute *attr,
549 struct adt7475_data *data = adt7475_update_device(dev);
550 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
553 if (sattr->nr == ALARM)
554 out = (data->alarms >> (sattr->index + 10)) & 1;
556 out = tach2rpm(data->tach[sattr->nr][sattr->index]);
558 return sprintf(buf, "%d\n", out);
561 static ssize_t set_tach(struct device *dev, struct device_attribute *attr,
562 const char *buf, size_t count)
565 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
566 struct i2c_client *client = to_i2c_client(dev);
567 struct adt7475_data *data = i2c_get_clientdata(client);
570 if (strict_strtoul(buf, 10, &val))
573 mutex_lock(&data->lock);
575 data->tach[MIN][sattr->index] = rpm2tach(val);
577 adt7475_write_word(client, TACH_MIN_REG(sattr->index),
578 data->tach[MIN][sattr->index]);
580 mutex_unlock(&data->lock);
584 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
587 struct adt7475_data *data = adt7475_update_device(dev);
588 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
590 return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]);
593 static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr,
596 struct adt7475_data *data = adt7475_update_device(dev);
597 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
599 return sprintf(buf, "%d\n", data->pwmchan[sattr->index]);
602 static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr,
605 struct adt7475_data *data = adt7475_update_device(dev);
606 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
608 return sprintf(buf, "%d\n", data->pwmctl[sattr->index]);
611 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
612 const char *buf, size_t count)
615 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
616 struct i2c_client *client = to_i2c_client(dev);
617 struct adt7475_data *data = i2c_get_clientdata(client);
618 unsigned char reg = 0;
621 if (strict_strtol(buf, 10, &val))
624 mutex_lock(&data->lock);
628 /* Get a fresh value for CONTROL */
629 data->pwm[CONTROL][sattr->index] =
630 adt7475_read(PWM_CONFIG_REG(sattr->index));
632 /* If we are not in manual mode, then we shouldn't allow
633 * the user to set the pwm speed */
634 if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) {
635 mutex_unlock(&data->lock);
639 reg = PWM_REG(sattr->index);
643 reg = PWM_MIN_REG(sattr->index);
647 reg = PWM_MAX_REG(sattr->index);
651 data->pwm[sattr->nr][sattr->index] = SENSORS_LIMIT(val, 0, 0xFF);
652 i2c_smbus_write_byte_data(client, reg,
653 data->pwm[sattr->nr][sattr->index]);
655 mutex_unlock(&data->lock);
660 /* Called by set_pwmctrl and set_pwmchan */
662 static int hw_set_pwm(struct i2c_client *client, int index,
663 unsigned int pwmctl, unsigned int pwmchan)
665 struct adt7475_data *data = i2c_get_clientdata(client);
670 val = 0x03; /* Run at full speed */
673 val = 0x07; /* Manual mode */
678 /* Remote1 controls PWM */
682 /* local controls PWM */
686 /* remote2 controls PWM */
690 /* local/remote2 control PWM */
694 /* All three control PWM */
705 data->pwmctl[index] = pwmctl;
706 data->pwmchan[index] = pwmchan;
708 data->pwm[CONTROL][index] &= ~0xE0;
709 data->pwm[CONTROL][index] |= (val & 7) << 5;
711 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
712 data->pwm[CONTROL][index]);
717 static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr,
718 const char *buf, size_t count)
720 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
721 struct i2c_client *client = to_i2c_client(dev);
722 struct adt7475_data *data = i2c_get_clientdata(client);
726 if (strict_strtol(buf, 10, &val))
729 mutex_lock(&data->lock);
730 /* Read Modify Write PWM values */
731 adt7475_read_pwm(client, sattr->index);
732 r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val);
735 mutex_unlock(&data->lock);
740 static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr,
741 const char *buf, size_t count)
743 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
744 struct i2c_client *client = to_i2c_client(dev);
745 struct adt7475_data *data = i2c_get_clientdata(client);
749 if (strict_strtol(buf, 10, &val))
752 mutex_lock(&data->lock);
753 /* Read Modify Write PWM values */
754 adt7475_read_pwm(client, sattr->index);
755 r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]);
758 mutex_unlock(&data->lock);
763 /* List of frequencies for the PWM */
764 static const int pwmfreq_table[] = {
765 11, 14, 22, 29, 35, 44, 58, 88
768 static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr,
771 struct adt7475_data *data = adt7475_update_device(dev);
772 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
774 return sprintf(buf, "%d\n",
775 pwmfreq_table[data->range[sattr->index] & 7]);
778 static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr,
779 const char *buf, size_t count)
781 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
782 struct i2c_client *client = to_i2c_client(dev);
783 struct adt7475_data *data = i2c_get_clientdata(client);
787 if (strict_strtol(buf, 10, &val))
790 out = find_nearest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table));
792 mutex_lock(&data->lock);
794 data->range[sattr->index] =
795 adt7475_read(TEMP_TRANGE_REG(sattr->index));
796 data->range[sattr->index] &= ~7;
797 data->range[sattr->index] |= out;
799 i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
800 data->range[sattr->index]);
802 mutex_unlock(&data->lock);
806 static ssize_t show_pwm_at_crit(struct device *dev,
807 struct device_attribute *devattr, char *buf)
809 struct adt7475_data *data = adt7475_update_device(dev);
810 return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY));
813 static ssize_t set_pwm_at_crit(struct device *dev,
814 struct device_attribute *devattr,
815 const char *buf, size_t count)
817 struct i2c_client *client = to_i2c_client(dev);
818 struct adt7475_data *data = i2c_get_clientdata(client);
821 if (strict_strtol(buf, 10, &val))
823 if (val != 0 && val != 1)
826 mutex_lock(&data->lock);
827 data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4);
829 data->config4 |= CONFIG4_MAXDUTY;
831 data->config4 &= ~CONFIG4_MAXDUTY;
832 i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4);
833 mutex_unlock(&data->lock);
838 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
839 static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage,
840 set_voltage, MAX, 0);
841 static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage,
842 set_voltage, MIN, 0);
843 static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
844 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
845 static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
846 set_voltage, MAX, 1);
847 static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
848 set_voltage, MIN, 1);
849 static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
850 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2);
851 static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
852 set_voltage, MAX, 2);
853 static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
854 set_voltage, MIN, 2);
855 static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2);
856 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3);
857 static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage,
858 set_voltage, MAX, 3);
859 static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage,
860 set_voltage, MIN, 3);
861 static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3);
862 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4);
863 static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage,
864 set_voltage, MAX, 4);
865 static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage,
866 set_voltage, MIN, 4);
867 static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8);
868 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5);
869 static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage,
870 set_voltage, MAX, 5);
871 static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage,
872 set_voltage, MIN, 5);
873 static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31);
874 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0);
875 static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0);
876 static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0);
877 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
879 static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
881 static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
882 set_temp, OFFSET, 0);
883 static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR,
884 show_temp, set_temp, AUTOMIN, 0);
885 static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR,
886 show_point2, set_point2, 0, 0);
887 static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
889 static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
890 set_temp, HYSTERSIS, 0);
891 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1);
892 static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1);
893 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
895 static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
897 static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
898 set_temp, OFFSET, 1);
899 static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR,
900 show_temp, set_temp, AUTOMIN, 1);
901 static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR,
902 show_point2, set_point2, 0, 1);
903 static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
905 static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
906 set_temp, HYSTERSIS, 1);
907 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2);
908 static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2);
909 static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2);
910 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
912 static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
914 static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
915 set_temp, OFFSET, 2);
916 static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR,
917 show_temp, set_temp, AUTOMIN, 2);
918 static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR,
919 show_point2, set_point2, 0, 2);
920 static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
922 static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
923 set_temp, HYSTERSIS, 2);
924 static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0);
925 static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
927 static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0);
928 static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1);
929 static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
931 static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1);
932 static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2);
933 static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
935 static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2);
936 static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3);
937 static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
939 static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3);
940 static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
942 static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
943 set_pwmfreq, INPUT, 0);
944 static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
945 set_pwmctrl, INPUT, 0);
946 static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
947 show_pwmchan, set_pwmchan, INPUT, 0);
948 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
950 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
952 static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
954 static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
955 set_pwmfreq, INPUT, 1);
956 static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
957 set_pwmctrl, INPUT, 1);
958 static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
959 show_pwmchan, set_pwmchan, INPUT, 1);
960 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
962 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
964 static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
966 static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
967 set_pwmfreq, INPUT, 2);
968 static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
969 set_pwmctrl, INPUT, 2);
970 static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
971 show_pwmchan, set_pwmchan, INPUT, 2);
972 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
974 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
977 /* Non-standard name, might need revisiting */
978 static DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
979 show_pwm_at_crit, set_pwm_at_crit);
981 static struct attribute *adt7475_attrs[] = {
982 &sensor_dev_attr_in1_input.dev_attr.attr,
983 &sensor_dev_attr_in1_max.dev_attr.attr,
984 &sensor_dev_attr_in1_min.dev_attr.attr,
985 &sensor_dev_attr_in1_alarm.dev_attr.attr,
986 &sensor_dev_attr_in2_input.dev_attr.attr,
987 &sensor_dev_attr_in2_max.dev_attr.attr,
988 &sensor_dev_attr_in2_min.dev_attr.attr,
989 &sensor_dev_attr_in2_alarm.dev_attr.attr,
990 &sensor_dev_attr_temp1_input.dev_attr.attr,
991 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
992 &sensor_dev_attr_temp1_fault.dev_attr.attr,
993 &sensor_dev_attr_temp1_max.dev_attr.attr,
994 &sensor_dev_attr_temp1_min.dev_attr.attr,
995 &sensor_dev_attr_temp1_offset.dev_attr.attr,
996 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
997 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
998 &sensor_dev_attr_temp1_crit.dev_attr.attr,
999 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
1000 &sensor_dev_attr_temp2_input.dev_attr.attr,
1001 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1002 &sensor_dev_attr_temp2_max.dev_attr.attr,
1003 &sensor_dev_attr_temp2_min.dev_attr.attr,
1004 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1005 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1006 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1007 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1008 &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
1009 &sensor_dev_attr_temp3_input.dev_attr.attr,
1010 &sensor_dev_attr_temp3_fault.dev_attr.attr,
1011 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1012 &sensor_dev_attr_temp3_max.dev_attr.attr,
1013 &sensor_dev_attr_temp3_min.dev_attr.attr,
1014 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1015 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1016 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1017 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1018 &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
1019 &sensor_dev_attr_fan1_input.dev_attr.attr,
1020 &sensor_dev_attr_fan1_min.dev_attr.attr,
1021 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1022 &sensor_dev_attr_fan2_input.dev_attr.attr,
1023 &sensor_dev_attr_fan2_min.dev_attr.attr,
1024 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1025 &sensor_dev_attr_fan3_input.dev_attr.attr,
1026 &sensor_dev_attr_fan3_min.dev_attr.attr,
1027 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1028 &sensor_dev_attr_fan4_input.dev_attr.attr,
1029 &sensor_dev_attr_fan4_min.dev_attr.attr,
1030 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1031 &sensor_dev_attr_pwm1.dev_attr.attr,
1032 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1033 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1034 &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
1035 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1036 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1037 &sensor_dev_attr_pwm2.dev_attr.attr,
1038 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1039 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1040 &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
1041 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1042 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1043 &sensor_dev_attr_pwm3.dev_attr.attr,
1044 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1045 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1046 &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
1047 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1048 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1049 &dev_attr_pwm_use_point2_pwm_at_crit.attr,
1053 /* Attributes specific to the ADT7490 */
1054 static struct attribute *adt7490_attrs[] = {
1055 &sensor_dev_attr_in0_input.dev_attr.attr,
1056 &sensor_dev_attr_in0_max.dev_attr.attr,
1057 &sensor_dev_attr_in0_min.dev_attr.attr,
1058 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1059 &sensor_dev_attr_in3_input.dev_attr.attr,
1060 &sensor_dev_attr_in3_max.dev_attr.attr,
1061 &sensor_dev_attr_in3_min.dev_attr.attr,
1062 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1063 &sensor_dev_attr_in4_input.dev_attr.attr,
1064 &sensor_dev_attr_in4_max.dev_attr.attr,
1065 &sensor_dev_attr_in4_min.dev_attr.attr,
1066 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1067 &sensor_dev_attr_in5_input.dev_attr.attr,
1068 &sensor_dev_attr_in5_max.dev_attr.attr,
1069 &sensor_dev_attr_in5_min.dev_attr.attr,
1070 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1074 static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
1075 static struct attribute_group adt7490_attr_group = { .attrs = adt7490_attrs };
1077 static int adt7475_detect(struct i2c_client *client, int kind,
1078 struct i2c_board_info *info)
1080 struct i2c_adapter *adapter = client->adapter;
1081 int vendid, devid, devid2;
1084 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1087 vendid = adt7475_read(REG_VENDID);
1088 devid2 = adt7475_read(REG_DEVID2);
1089 if (vendid != 0x41 || /* Analog Devices */
1090 (devid2 & 0xf8) != 0x68)
1093 devid = adt7475_read(REG_DEVID);
1096 else if (devid == 0x75 && client->addr == 0x2e)
1098 else if ((devid2 & 0xfc) == 0x6c)
1101 dev_dbg(&adapter->dev,
1102 "Couldn't detect an ADT7473/75/90 part at "
1103 "0x%02x\n", (unsigned int)client->addr);
1107 strlcpy(info->type, name, I2C_NAME_SIZE);
1112 static int adt7475_probe(struct i2c_client *client,
1113 const struct i2c_device_id *id)
1115 struct adt7475_data *data;
1118 data = kzalloc(sizeof(*data), GFP_KERNEL);
1122 mutex_init(&data->lock);
1123 i2c_set_clientdata(client, data);
1125 /* Initialize device-specific values */
1126 switch (id->driver_data) {
1128 data->has_voltage = 0x3f; /* in0 to in5 */
1131 data->has_voltage = 0x06; /* in1, in2 */
1134 /* Call adt7475_read_pwm for all pwm's as this will reprogram any
1135 pwm's which are disabled to manual mode with 0% duty cycle */
1136 for (i = 0; i < ADT7475_PWM_COUNT; i++)
1137 adt7475_read_pwm(client, i);
1139 ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group);
1143 if (id->driver_data == adt7490) {
1144 ret = sysfs_create_group(&client->dev.kobj,
1145 &adt7490_attr_group);
1150 data->hwmon_dev = hwmon_device_register(&client->dev);
1151 if (IS_ERR(data->hwmon_dev)) {
1152 ret = PTR_ERR(data->hwmon_dev);
1159 sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
1160 if (data->has_voltage & 0x39)
1161 sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group);
1167 static int adt7475_remove(struct i2c_client *client)
1169 struct adt7475_data *data = i2c_get_clientdata(client);
1171 hwmon_device_unregister(data->hwmon_dev);
1172 sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
1173 if (data->has_voltage & 0x39)
1174 sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group);
1180 static struct i2c_driver adt7475_driver = {
1181 .class = I2C_CLASS_HWMON,
1185 .probe = adt7475_probe,
1186 .remove = adt7475_remove,
1187 .id_table = adt7475_id,
1188 .detect = adt7475_detect,
1189 .address_data = &addr_data,
1192 static void adt7475_read_hystersis(struct i2c_client *client)
1194 struct adt7475_data *data = i2c_get_clientdata(client);
1196 data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS);
1197 data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0];
1198 data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS);
1201 static void adt7475_read_pwm(struct i2c_client *client, int index)
1203 struct adt7475_data *data = i2c_get_clientdata(client);
1206 data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index));
1208 /* Figure out the internal value for pwmctrl and pwmchan
1209 based on the current settings */
1210 v = (data->pwm[CONTROL][index] >> 5) & 7;
1213 data->pwmctl[index] = 0;
1215 data->pwmctl[index] = 1;
1217 /* The fan is disabled - we don't want to
1218 support that, so change to manual mode and
1219 set the duty cycle to 0 instead
1221 data->pwm[INPUT][index] = 0;
1222 data->pwm[CONTROL][index] &= ~0xE0;
1223 data->pwm[CONTROL][index] |= (7 << 5);
1225 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
1226 data->pwm[INPUT][index]);
1228 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
1229 data->pwm[CONTROL][index]);
1231 data->pwmctl[index] = 1;
1233 data->pwmctl[index] = 2;
1237 data->pwmchan[index] = 1;
1240 data->pwmchan[index] = 2;
1243 data->pwmchan[index] = 4;
1246 data->pwmchan[index] = 6;
1249 data->pwmchan[index] = 7;
1255 static struct adt7475_data *adt7475_update_device(struct device *dev)
1257 struct i2c_client *client = to_i2c_client(dev);
1258 struct adt7475_data *data = i2c_get_clientdata(client);
1262 mutex_lock(&data->lock);
1264 /* Measurement values update every 2 seconds */
1265 if (time_after(jiffies, data->measure_updated + HZ * 2) ||
1267 data->alarms = adt7475_read(REG_STATUS2) << 8;
1268 data->alarms |= adt7475_read(REG_STATUS1);
1270 ext = (adt7475_read(REG_EXTEND2) << 8) |
1271 adt7475_read(REG_EXTEND1);
1272 for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
1273 if (!(data->has_voltage & (1 << i)))
1275 data->voltage[INPUT][i] =
1276 (adt7475_read(VOLTAGE_REG(i)) << 2) |
1277 ((ext >> (i * 2)) & 3);
1280 for (i = 0; i < ADT7475_TEMP_COUNT; i++)
1281 data->temp[INPUT][i] =
1282 (adt7475_read(TEMP_REG(i)) << 2) |
1283 ((ext >> ((i + 5) * 2)) & 3);
1285 if (data->has_voltage & (1 << 5)) {
1286 data->alarms |= adt7475_read(REG_STATUS4) << 24;
1287 ext = adt7475_read(REG_EXTEND3);
1288 data->voltage[INPUT][5] = adt7475_read(REG_VTT) << 2 |
1292 for (i = 0; i < ADT7475_TACH_COUNT; i++)
1293 data->tach[INPUT][i] =
1294 adt7475_read_word(client, TACH_REG(i));
1296 /* Updated by hw when in auto mode */
1297 for (i = 0; i < ADT7475_PWM_COUNT; i++)
1298 data->pwm[INPUT][i] = adt7475_read(PWM_REG(i));
1300 data->measure_updated = jiffies;
1303 /* Limits and settings, should never change update every 60 seconds */
1304 if (time_after(jiffies, data->limits_updated + HZ * 60) ||
1306 data->config4 = adt7475_read(REG_CONFIG4);
1307 data->config5 = adt7475_read(REG_CONFIG5);
1309 for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
1310 if (!(data->has_voltage & (1 << i)))
1312 /* Adjust values so they match the input precision */
1313 data->voltage[MIN][i] =
1314 adt7475_read(VOLTAGE_MIN_REG(i)) << 2;
1315 data->voltage[MAX][i] =
1316 adt7475_read(VOLTAGE_MAX_REG(i)) << 2;
1319 if (data->has_voltage & (1 << 5)) {
1320 data->voltage[MIN][5] = adt7475_read(REG_VTT_MIN) << 2;
1321 data->voltage[MAX][5] = adt7475_read(REG_VTT_MAX) << 2;
1324 for (i = 0; i < ADT7475_TEMP_COUNT; i++) {
1325 /* Adjust values so they match the input precision */
1326 data->temp[MIN][i] =
1327 adt7475_read(TEMP_MIN_REG(i)) << 2;
1328 data->temp[MAX][i] =
1329 adt7475_read(TEMP_MAX_REG(i)) << 2;
1330 data->temp[AUTOMIN][i] =
1331 adt7475_read(TEMP_TMIN_REG(i)) << 2;
1332 data->temp[THERM][i] =
1333 adt7475_read(TEMP_THERM_REG(i)) << 2;
1334 data->temp[OFFSET][i] =
1335 adt7475_read(TEMP_OFFSET_REG(i));
1337 adt7475_read_hystersis(client);
1339 for (i = 0; i < ADT7475_TACH_COUNT; i++)
1340 data->tach[MIN][i] =
1341 adt7475_read_word(client, TACH_MIN_REG(i));
1343 for (i = 0; i < ADT7475_PWM_COUNT; i++) {
1344 data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i));
1345 data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i));
1346 /* Set the channel and control information */
1347 adt7475_read_pwm(client, i);
1350 data->range[0] = adt7475_read(TEMP_TRANGE_REG(0));
1351 data->range[1] = adt7475_read(TEMP_TRANGE_REG(1));
1352 data->range[2] = adt7475_read(TEMP_TRANGE_REG(2));
1354 data->limits_updated = jiffies;
1358 mutex_unlock(&data->lock);
1363 static int __init sensors_adt7475_init(void)
1365 return i2c_add_driver(&adt7475_driver);
1368 static void __exit sensors_adt7475_exit(void)
1370 i2c_del_driver(&adt7475_driver);
1373 MODULE_AUTHOR("Advanced Micro Devices, Inc");
1374 MODULE_DESCRIPTION("adt7475 driver");
1375 MODULE_LICENSE("GPL");
1377 module_init(sensors_adt7475_init);
1378 module_exit(sensors_adt7475_exit);