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hwmon: (adt7475) Add support for the ADT7490
[net-next-2.6.git] / drivers / hwmon / adt7475.c
CommitLineData
1c301fc5
JC		 1/*
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>
3d849981
JD		 6 * Copyright (C) 2009 Jean Delvare <khali@linux-fr.org>
7 *
1c301fc5
JC		 8 * Derived from the lm83 driver by Jean Delvare
9 *
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.
13 */
14
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>
22
23/* Indexes for the sysfs hooks */
24
25#define INPUT 0
26#define MIN 1
27#define MAX 2
28#define CONTROL 3
29#define OFFSET 3
30#define AUTOMIN 4
31#define THERM 5
32#define HYSTERSIS 6
33
34/* These are unique identifiers for the sysfs functions - unlike the
35 numbers above, these are not also indexes into an array
36*/
37
38#define ALARM 9
39#define FAULT 10
40
41/* 7475 Common Registers */
42
3d849981
JD		 43#define REG_VTT 0x1E /* ADT7490 only */
44#define REG_EXTEND3 0x1F /* ADT7490 only */
45
cffb9dd0 46#define REG_VOLTAGE_BASE 0x20
1c301fc5
JC		 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
51
52#define REG_DEVID 0x3D
53#define REG_VENDID 0x3E
d656b6fd 54#define REG_DEVID2 0x3F
1c301fc5
JC		 55
56#define REG_STATUS1 0x41
57#define REG_STATUS2 0x42
58
cffb9dd0
JD		 59#define REG_VOLTAGE_MIN_BASE 0x44
60#define REG_VOLTAGE_MAX_BASE 0x45
1c301fc5
JC		 61
62#define REG_TEMP_MIN_BASE 0x4E
63#define REG_TEMP_MAX_BASE 0x4F
64
65#define REG_TACH_MIN_BASE 0x54
66
67#define REG_PWM_CONFIG_BASE 0x5C
68
69#define REG_TEMP_TRANGE_BASE 0x5F
70
71#define REG_PWM_MIN_BASE 0x64
72
73#define REG_TEMP_TMIN_BASE 0x67
74#define REG_TEMP_THERM_BASE 0x6A
75
76#define REG_REMOTE1_HYSTERSIS 0x6D
77#define REG_REMOTE2_HYSTERSIS 0x6E
78
79#define REG_TEMP_OFFSET_BASE 0x70
80
81#define REG_EXTEND1 0x76
82#define REG_EXTEND2 0x77
83#define REG_CONFIG5 0x7C
f99318b2
JD		 84#define REG_CONFIG4 0x7D
85
3d849981
JD		 86#define REG_STATUS4 0x81 /* ADT7490 only */
87
88#define REG_VTT_MIN 0x84 /* ADT7490 only */
89#define REG_VTT_MAX 0x86 /* ADT7490 only */
90
f99318b2 91#define CONFIG4_MAXDUTY 0x08
1c301fc5
JC		 92
93#define CONFIG5_TWOSCOMP 0x01
94#define CONFIG5_TEMPOFFSET 0x02
95
96/* ADT7475 Settings */
97
cffb9dd0 98#define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
1c301fc5
JC		 99#define ADT7475_TEMP_COUNT 3
100#define ADT7475_TACH_COUNT 4
101#define ADT7475_PWM_COUNT 3
102
103/* Macro to read the registers */
104
105#define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg))
106
107/* Macros to easily index the registers */
108
109#define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2))
110#define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2))
111
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))
116
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))
120
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))
128
b180d050 129static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
1c301fc5 130
3d849981 131I2C_CLIENT_INSMOD_3(adt7473, adt7475, adt7490);
1c301fc5
JC		 132
133static const struct i2c_device_id adt7475_id[] = {
b180d050 134 { "adt7473", adt7473 },
1c301fc5 135 { "adt7475", adt7475 },
3d849981 136 { "adt7490", adt7490 },
1c301fc5
JC		 137 { }
138};
139MODULE_DEVICE_TABLE(i2c, adt7475_id);
140
141struct adt7475_data {
142 struct device *hwmon_dev;
143 struct mutex lock;
144
145 unsigned long measure_updated;
146 unsigned long limits_updated;
147 char valid;
148
f99318b2 149 u8 config4;
1c301fc5 150 u8 config5;
cffb9dd0 151 u8 has_voltage;
3d849981 152 u32 alarms;
cffb9dd0 153 u16 voltage[3][6];
1c301fc5
JC		 154 u16 temp[7][3];
155 u16 tach[2][4];
156 u8 pwm[4][3];
157 u8 range[3];
158 u8 pwmctl[3];
159 u8 pwmchan[3];
160};
161
162static struct i2c_driver adt7475_driver;
163static struct adt7475_data *adt7475_update_device(struct device *dev);
164static void adt7475_read_hystersis(struct i2c_client *client);
165static void adt7475_read_pwm(struct i2c_client *client, int index);
166
167/* Given a temp value, convert it to register value */
168
169static inline u16 temp2reg(struct adt7475_data *data, long val)
170{
171 u16 ret;
172
173 if (!(data->config5 & CONFIG5_TWOSCOMP)) {
174 val = SENSORS_LIMIT(val, -64000, 191000);
175 ret = (val + 64500) / 1000;
176 } else {
177 val = SENSORS_LIMIT(val, -128000, 127000);
178 if (val < -500)
179 ret = (256500 + val) / 1000;
180 else
181 ret = (val + 500) / 1000;
182 }
183
184 return ret << 2;
185}
186
187/* Given a register value, convert it to a real temp value */
188
189static inline int reg2temp(struct adt7475_data *data, u16 reg)
190{
191 if (data->config5 & CONFIG5_TWOSCOMP) {
192 if (reg >= 512)
193 return (reg - 1024) * 250;
194 else
195 return reg * 250;
196 } else
197 return (reg - 256) * 250;
198}
199
200static inline int tach2rpm(u16 tach)
201{
202 if (tach == 0 || tach == 0xFFFF)
203 return 0;
204
205 return (90000 * 60) / tach;
206}
207
208static inline u16 rpm2tach(unsigned long rpm)
209{
210 if (rpm == 0)
211 return 0;
212
213 return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF);
214}
215
cffb9dd0
JD		 216/* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
217static 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 */
224};
1c301fc5 225
cffb9dd0 226static inline int reg2volt(int channel, u16 reg)
1c301fc5 227{
cffb9dd0 228 const int *r = adt7473_in_scaling[channel];
1c301fc5 229
cffb9dd0 230 return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024);
1c301fc5
JC		 231}
232
cffb9dd0 233static inline u16 volt2reg(int channel, long volt)
1c301fc5 234{
cffb9dd0
JD		 235 const int *r = adt7473_in_scaling[channel];
236 long reg;
237
238 reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
239 return SENSORS_LIMIT(reg, 0, 1023) & (0xff << 2);
1c301fc5
JC		 240}
241
242static u16 adt7475_read_word(struct i2c_client *client, int reg)
243{
244 u16 val;
245
246 val = i2c_smbus_read_byte_data(client, reg);
247 val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8);
248
249 return val;
250}
251
252static void adt7475_write_word(struct i2c_client *client, int reg, u16 val)
253{
254 i2c_smbus_write_byte_data(client, reg + 1, val >> 8);
255 i2c_smbus_write_byte_data(client, reg, val & 0xFF);
256}
257
258/* Find the nearest value in a table - used for pwm frequency and
259 auto temp range */
260static int find_nearest(long val, const int *array, int size)
261{
262 int i;
263
264 if (val < array[0])
265 return 0;
266
267 if (val > array[size - 1])
268 return size - 1;
269
270 for (i = 0; i < size - 1; i++) {
271 int a, b;
272
273 if (val > array[i + 1])
274 continue;
275
276 a = val - array[i];
277 b = array[i + 1] - val;
278
279 return (a <= b) ? i : i + 1;
280 }
281
282 return 0;
283}
284
285static ssize_t show_voltage(struct device *dev, struct device_attribute *attr,
286 char *buf)
287{
288 struct adt7475_data *data = adt7475_update_device(dev);
289 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
290 unsigned short val;
291
292 switch (sattr->nr) {
293 case ALARM:
294 return sprintf(buf, "%d\n",
cffb9dd0 295 (data->alarms >> sattr->index) & 1);
1c301fc5
JC		 296 default:
297 val = data->voltage[sattr->nr][sattr->index];
cffb9dd0 298 return sprintf(buf, "%d\n", reg2volt(sattr->index, val));
1c301fc5
JC		 299 }
300}
301
302static ssize_t set_voltage(struct device *dev, struct device_attribute *attr,
303 const char *buf, size_t count)
304{
305
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);
309 unsigned char reg;
310 long val;
311
312 if (strict_strtol(buf, 10, &val))
313 return -EINVAL;
314
315 mutex_lock(&data->lock);
316
cffb9dd0 317 data->voltage[sattr->nr][sattr->index] = volt2reg(sattr->index, val);
1c301fc5 318
3d849981
JD		 319 if (sattr->index < ADT7475_VOLTAGE_COUNT) {
320 if (sattr->nr == MIN)
321 reg = VOLTAGE_MIN_REG(sattr->index);
322 else
323 reg = VOLTAGE_MAX_REG(sattr->index);
324 } else {
325 if (sattr->nr == MIN)
326 reg = REG_VTT_MIN;
327 else
328 reg = REG_VTT_MAX;
329 }
1c301fc5
JC		 330
331 i2c_smbus_write_byte_data(client, reg,
332 data->voltage[sattr->nr][sattr->index] >> 2);
333 mutex_unlock(&data->lock);
334
335 return count;
336}
337
338static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
339 char *buf)
340{
341 struct adt7475_data *data = adt7475_update_device(dev);
342 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
343 int out;
344
345 switch (sattr->nr) {
346 case HYSTERSIS:
347 mutex_lock(&data->lock);
348 out = data->temp[sattr->nr][sattr->index];
349 if (sattr->index != 1)
350 out = (out >> 4) & 0xF;
351 else
352 out = (out & 0xF);
353 /* Show the value as an absolute number tied to
354 * THERM */
355 out = reg2temp(data, data->temp[THERM][sattr->index]) -
356 out * 1000;
357 mutex_unlock(&data->lock);
358 break;
359
360 case OFFSET:
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)
366 out *= 1000;
367 else
368 out *= 500;
369 mutex_unlock(&data->lock);
370 break;
371
372 case ALARM:
373 out = (data->alarms >> (sattr->index + 4)) & 1;
374 break;
375
376 case FAULT:
377 /* Note - only for remote1 and remote2 */
cf312e07 378 out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000));
1c301fc5
JC		 379 break;
380
381 default:
382 /* All other temp values are in the configured format */
383 out = reg2temp(data, data->temp[sattr->nr][sattr->index]);
384 }
385
386 return sprintf(buf, "%d\n", out);
387}
388
389static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
390 const char *buf, size_t count)
391{
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;
396 u8 out;
397 int temp;
398 long val;
399
400 if (strict_strtol(buf, 10, &val))
401 return -EINVAL;
402
403 mutex_lock(&data->lock);
404
405 /* We need the config register in all cases for temp <-> reg conv. */
406 data->config5 = adt7475_read(REG_CONFIG5);
407
408 switch (sattr->nr) {
409 case OFFSET:
410 if (data->config5 & CONFIG5_TEMPOFFSET) {
411 val = SENSORS_LIMIT(val, -63000, 127000);
412 out = data->temp[OFFSET][sattr->index] = val / 1000;
413 } else {
414 val = SENSORS_LIMIT(val, -63000, 64000);
415 out = data->temp[OFFSET][sattr->index] = val / 500;
416 }
417 break;
418
419 case HYSTERSIS:
420 /* The value will be given as an absolute value, turn it
421 into an offset based on THERM */
422
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);
427
428 temp = reg2temp(data, data->temp[THERM][sattr->index]);
429 val = SENSORS_LIMIT(val, temp - 15000, temp);
430 val = (temp - val) / 1000;
431
432 if (sattr->index != 1) {
433 data->temp[HYSTERSIS][sattr->index] &= 0xF0;
434 data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4;
435 } else {
436 data->temp[HYSTERSIS][sattr->index] &= 0x0F;
437 data->temp[HYSTERSIS][sattr->index] |= (val & 0xF);
438 }
439
440 out = data->temp[HYSTERSIS][sattr->index];
441 break;
442
443 default:
444 data->temp[sattr->nr][sattr->index] = temp2reg(data, val);
445
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);
449 }
450
451 switch (sattr->nr) {
452 case MIN:
453 reg = TEMP_MIN_REG(sattr->index);
454 break;
455 case MAX:
456 reg = TEMP_MAX_REG(sattr->index);
457 break;
458 case OFFSET:
459 reg = TEMP_OFFSET_REG(sattr->index);
460 break;
461 case AUTOMIN:
462 reg = TEMP_TMIN_REG(sattr->index);
463 break;
464 case THERM:
465 reg = TEMP_THERM_REG(sattr->index);
466 break;
467 case HYSTERSIS:
468 if (sattr->index != 2)
469 reg = REG_REMOTE1_HYSTERSIS;
470 else
471 reg = REG_REMOTE2_HYSTERSIS;
472
473 break;
474 }
475
476 i2c_smbus_write_byte_data(client, reg, out);
477
478 mutex_unlock(&data->lock);
479 return count;
480}
481
482/* Table of autorange values - the user will write the value in millidegrees,
483 and we'll convert it */
484static const int autorange_table[] = {
485 2000, 2500, 3330, 4000, 5000, 6670, 8000,
486 10000, 13330, 16000, 20000, 26670, 32000, 40000,
487 53330, 80000
488};
489
490static ssize_t show_point2(struct device *dev, struct device_attribute *attr,
491 char *buf)
492{
493 struct adt7475_data *data = adt7475_update_device(dev);
494 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
495 int out, val;
496
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);
501
502 return sprintf(buf, "%d\n", val + autorange_table[out]);
503}
504
505static ssize_t set_point2(struct device *dev, struct device_attribute *attr,
506 const char *buf, size_t count)
507{
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);
511 int temp;
512 long val;
513
514 if (strict_strtol(buf, 10, &val))
515 return -EINVAL;
516
517 mutex_lock(&data->lock);
518
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));
525
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]);
531 val -= temp;
532
533 /* Find the nearest table entry to what the user wrote */
534 val = find_nearest(val, autorange_table, ARRAY_SIZE(autorange_table));
535
536 data->range[sattr->index] &= ~0xF0;
537 data->range[sattr->index] |= val << 4;
538
539 i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
540 data->range[sattr->index]);
541
542 mutex_unlock(&data->lock);
543 return count;
544}
545
546static ssize_t show_tach(struct device *dev, struct device_attribute *attr,
547 char *buf)
548{
549 struct adt7475_data *data = adt7475_update_device(dev);
550 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
551 int out;
552
553 if (sattr->nr == ALARM)
554 out = (data->alarms >> (sattr->index + 10)) & 1;
555 else
556 out = tach2rpm(data->tach[sattr->nr][sattr->index]);
557
558 return sprintf(buf, "%d\n", out);
559}
560
561static ssize_t set_tach(struct device *dev, struct device_attribute *attr,
562 const char *buf, size_t count)
563{
564
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);
568 unsigned long val;
569
570 if (strict_strtoul(buf, 10, &val))
571 return -EINVAL;
572
573 mutex_lock(&data->lock);
574
575 data->tach[MIN][sattr->index] = rpm2tach(val);
576
577 adt7475_write_word(client, TACH_MIN_REG(sattr->index),
578 data->tach[MIN][sattr->index]);
579
580 mutex_unlock(&data->lock);
581 return count;
582}
583
584static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
585 char *buf)
586{
587 struct adt7475_data *data = adt7475_update_device(dev);
588 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
589
590 return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]);
591}
592
593static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr,
594 char *buf)
595{
596 struct adt7475_data *data = adt7475_update_device(dev);
597 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
598
599 return sprintf(buf, "%d\n", data->pwmchan[sattr->index]);
600}
601
602static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr,
603 char *buf)
604{
605 struct adt7475_data *data = adt7475_update_device(dev);
606 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
607
608 return sprintf(buf, "%d\n", data->pwmctl[sattr->index]);
609}
610
611static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
612 const char *buf, size_t count)
613{
614
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;
619 long val;
620
621 if (strict_strtol(buf, 10, &val))
622 return -EINVAL;
623
624 mutex_lock(&data->lock);
625
626 switch (sattr->nr) {
627 case INPUT:
628 /* Get a fresh value for CONTROL */
629 data->pwm[CONTROL][sattr->index] =
630 adt7475_read(PWM_CONFIG_REG(sattr->index));
631
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);
636 return count;
637 }
638
639 reg = PWM_REG(sattr->index);
640 break;
641
642 case MIN:
643 reg = PWM_MIN_REG(sattr->index);
644 break;
645
646 case MAX:
647 reg = PWM_MAX_REG(sattr->index);
648 break;
649 }
650
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]);
654
655 mutex_unlock(&data->lock);
656
657 return count;
658}
659
660/* Called by set_pwmctrl and set_pwmchan */
661
662static int hw_set_pwm(struct i2c_client *client, int index,
663 unsigned int pwmctl, unsigned int pwmchan)
664{
665 struct adt7475_data *data = i2c_get_clientdata(client);
666 long val = 0;
667
668 switch (pwmctl) {
669 case 0:
670 val = 0x03; /* Run at full speed */
671 break;
672 case 1:
673 val = 0x07; /* Manual mode */
674 break;
675 case 2:
676 switch (pwmchan) {
677 case 1:
678 /* Remote1 controls PWM */
679 val = 0x00;
680 break;
681 case 2:
682 /* local controls PWM */
683 val = 0x01;
684 break;
685 case 4:
686 /* remote2 controls PWM */
687 val = 0x02;
688 break;
689 case 6:
690 /* local/remote2 control PWM */
691 val = 0x05;
692 break;
693 case 7:
694 /* All three control PWM */
695 val = 0x06;
696 break;
697 default:
698 return -EINVAL;
699 }
700 break;
701 default:
702 return -EINVAL;
703 }
704
705 data->pwmctl[index] = pwmctl;
706 data->pwmchan[index] = pwmchan;
707
708 data->pwm[CONTROL][index] &= ~0xE0;
709 data->pwm[CONTROL][index] |= (val & 7) << 5;
710
711 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
712 data->pwm[CONTROL][index]);
713
714 return 0;
715}
716
717static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr,
718 const char *buf, size_t count)
719{
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);
723 int r;
724 long val;
725
726 if (strict_strtol(buf, 10, &val))
727 return -EINVAL;
728
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);
733 if (r)
734 count = r;
735 mutex_unlock(&data->lock);
736
737 return count;
738}
739
740static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr,
741 const char *buf, size_t count)
742{
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);
746 int r;
747 long val;
748
749 if (strict_strtol(buf, 10, &val))
750 return -EINVAL;
751
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]);
756 if (r)
757 count = r;
758 mutex_unlock(&data->lock);
759
760 return count;
761}
762
763/* List of frequencies for the PWM */
764static const int pwmfreq_table[] = {
765 11, 14, 22, 29, 35, 44, 58, 88
766};
767
768static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr,
769 char *buf)
770{
771 struct adt7475_data *data = adt7475_update_device(dev);
772 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
773
774 return sprintf(buf, "%d\n",
775 pwmfreq_table[data->range[sattr->index] & 7]);
776}
777
778static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr,
779 const char *buf, size_t count)
780{
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);
784 int out;
785 long val;
786
787 if (strict_strtol(buf, 10, &val))
788 return -EINVAL;
789
790 out = find_nearest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table));
791
792 mutex_lock(&data->lock);
793
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;
798
799 i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
800 data->range[sattr->index]);
801
802 mutex_unlock(&data->lock);
803 return count;
804}
805
f99318b2
JD		 806static ssize_t show_pwm_at_crit(struct device *dev,
807 struct device_attribute *devattr, char *buf)
808{
809 struct adt7475_data *data = adt7475_update_device(dev);
810 return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY));
811}
812
813static ssize_t set_pwm_at_crit(struct device *dev,
814 struct device_attribute *devattr,
815 const char *buf, size_t count)
816{
817 struct i2c_client *client = to_i2c_client(dev);
818 struct adt7475_data *data = i2c_get_clientdata(client);
819 long val;
820
821 if (strict_strtol(buf, 10, &val))
822 return -EINVAL;
823 if (val != 0 && val != 1)
824 return -EINVAL;
825
826 mutex_lock(&data->lock);
827 data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4);
828 if (val)
829 data->config4 |= CONFIG4_MAXDUTY;
830 else
831 data->config4 &= ~CONFIG4_MAXDUTY;
832 i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4);
833 mutex_unlock(&data->lock);
834
835 return count;
836}
837
3d849981
JD		 838static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
839static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage,
840 set_voltage, MAX, 0);
841static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage,
842 set_voltage, MIN, 0);
843static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
cffb9dd0 844static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
1c301fc5 845static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
cffb9dd0 846 set_voltage, MAX, 1);
1c301fc5 847static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
cffb9dd0
JD		 848 set_voltage, MIN, 1);
849static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
850static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2);
1c301fc5 851static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
cffb9dd0 852 set_voltage, MAX, 2);
1c301fc5 853static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
cffb9dd0
JD		 854 set_voltage, MIN, 2);
855static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2);
3d849981
JD		 856static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3);
857static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage,
858 set_voltage, MAX, 3);
859static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage,
860 set_voltage, MIN, 3);
861static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3);
862static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4);
863static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage,
864 set_voltage, MAX, 4);
865static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage,
866 set_voltage, MIN, 4);
867static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8);
868static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5);
869static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage,
870 set_voltage, MAX, 5);
871static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage,
872 set_voltage, MIN, 5);
873static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31);
1c301fc5
JC		 874static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0);
875static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0);
876static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0);
877static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
878 MAX, 0);
879static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
880 MIN, 0);
881static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
882 set_temp, OFFSET, 0);
883static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR,
884 show_temp, set_temp, AUTOMIN, 0);
885static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR,
886 show_point2, set_point2, 0, 0);
887static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
888 THERM, 0);
889static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
890 set_temp, HYSTERSIS, 0);
891static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1);
892static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1);
893static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
894 MAX, 1);
895static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
896 MIN, 1);
897static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
898 set_temp, OFFSET, 1);
899static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR,
900 show_temp, set_temp, AUTOMIN, 1);
901static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR,
902 show_point2, set_point2, 0, 1);
903static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
904 THERM, 1);
905static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
906 set_temp, HYSTERSIS, 1);
907static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2);
908static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2);
909static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2);
910static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
911 MAX, 2);
912static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
913 MIN, 2);
914static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
915 set_temp, OFFSET, 2);
916static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR,
917 show_temp, set_temp, AUTOMIN, 2);
918static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR,
919 show_point2, set_point2, 0, 2);
920static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
921 THERM, 2);
922static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
923 set_temp, HYSTERSIS, 2);
924static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0);
925static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
926 MIN, 0);
927static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0);
928static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1);
929static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
930 MIN, 1);
931static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1);
932static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2);
933static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
934 MIN, 2);
935static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2);
936static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3);
937static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
938 MIN, 3);
939static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3);
940static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
941 0);
942static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
943 set_pwmfreq, INPUT, 0);
944static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
945 set_pwmctrl, INPUT, 0);
84d2a314 946static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
1c301fc5
JC		 947 show_pwmchan, set_pwmchan, INPUT, 0);
948static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
949 set_pwm, MIN, 0);
950static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
951 set_pwm, MAX, 0);
952static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
953 1);
954static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
955 set_pwmfreq, INPUT, 1);
956static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
957 set_pwmctrl, INPUT, 1);
84d2a314 958static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
1c301fc5
JC		 959 show_pwmchan, set_pwmchan, INPUT, 1);
960static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
961 set_pwm, MIN, 1);
962static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
963 set_pwm, MAX, 1);
964static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
965 2);
966static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
967 set_pwmfreq, INPUT, 2);
968static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
969 set_pwmctrl, INPUT, 2);
84d2a314 970static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
1c301fc5
JC		 971 show_pwmchan, set_pwmchan, INPUT, 2);
972static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
973 set_pwm, MIN, 2);
974static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
975 set_pwm, MAX, 2);
976
f99318b2
JD		 977/* Non-standard name, might need revisiting */
978static DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
979 show_pwm_at_crit, set_pwm_at_crit);
980
1c301fc5
JC		 981static 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,
84d2a314 1034 &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
1c301fc5
JC		 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,
84d2a314 1040 &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
1c301fc5
JC		 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,
84d2a314 1046 &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
1c301fc5
JC		 1047 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1048 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
f99318b2 1049 &dev_attr_pwm_use_point2_pwm_at_crit.attr,
1c301fc5
JC		 1050 NULL,
1051};
1052
3d849981
JD		 1053/* Attributes specific to the ADT7490 */
1054static 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,
1071 NULL
1072};
1073
54ecb9e3 1074static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
3d849981 1075static struct attribute_group adt7490_attr_group = { .attrs = adt7490_attrs };
1c301fc5
JC		 1076
1077static int adt7475_detect(struct i2c_client *client, int kind,
1078 struct i2c_board_info *info)
1079{
1080 struct i2c_adapter *adapter = client->adapter;
d656b6fd 1081 int vendid, devid, devid2;
b180d050 1082 const char *name;
1c301fc5
JC		 1083
1084 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1085 return -ENODEV;
1086
b180d050 1087 vendid = adt7475_read(REG_VENDID);
d656b6fd
JD		 1088 devid2 = adt7475_read(REG_DEVID2);
1089 if (vendid != 0x41 || /* Analog Devices */
1090 (devid2 & 0xf8) != 0x68)
1091 return -ENODEV;
b180d050 1092
d656b6fd
JD		 1093 devid = adt7475_read(REG_DEVID);
1094 if (devid == 0x73)
b180d050 1095 name = "adt7473";
d656b6fd 1096 else if (devid == 0x75 && client->addr == 0x2e)
b180d050 1097 name = "adt7475";
3d849981
JD		 1098 else if ((devid2 & 0xfc) == 0x6c)
1099 name = "adt7490";
b180d050
JD		 1100 else {
1101 dev_dbg(&adapter->dev,
3d849981 1102 "Couldn't detect an ADT7473/75/90 part at "
b180d050 1103 "0x%02x\n", (unsigned int)client->addr);
52df6440 1104 return -ENODEV;
1c301fc5
JC		 1105 }
1106
b180d050 1107 strlcpy(info->type, name, I2C_NAME_SIZE);
1c301fc5
JC		 1108
1109 return 0;
1110}
1111
1112static int adt7475_probe(struct i2c_client *client,
1113 const struct i2c_device_id *id)
1114{
1115 struct adt7475_data *data;
1116 int i, ret = 0;
1117
1118 data = kzalloc(sizeof(*data), GFP_KERNEL);
1119 if (data == NULL)
1120 return -ENOMEM;
1121
1122 mutex_init(&data->lock);
1123 i2c_set_clientdata(client, data);
1124
cffb9dd0
JD		 1125 /* Initialize device-specific values */
1126 switch (id->driver_data) {
3d849981
JD		 1127 case adt7490:
1128 data->has_voltage = 0x3f; /* in0 to in5 */
1129 break;
cffb9dd0
JD		 1130 default:
1131 data->has_voltage = 0x06; /* in1, in2 */
1132 }
1133
1c301fc5
JC		 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);
1138
1139 ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group);
1140 if (ret)
1141 goto efree;
1142
3d849981
JD		 1143 if (id->driver_data == adt7490) {
1144 ret = sysfs_create_group(&client->dev.kobj,
1145 &adt7490_attr_group);
1146 if (ret)
1147 goto eremove;
1148 }
1149
1c301fc5
JC		 1150 data->hwmon_dev = hwmon_device_register(&client->dev);
1151 if (IS_ERR(data->hwmon_dev)) {
1152 ret = PTR_ERR(data->hwmon_dev);
1153 goto eremove;
1154 }
1155
1156 return 0;
1157
1158eremove:
1159 sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
3d849981
JD		 1160 if (data->has_voltage & 0x39)
1161 sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group);
1c301fc5
JC		 1162efree:
1163 kfree(data);
1164 return ret;
1165}
1166
1167static int adt7475_remove(struct i2c_client *client)
1168{
1169 struct adt7475_data *data = i2c_get_clientdata(client);
1170
1171 hwmon_device_unregister(data->hwmon_dev);
1172 sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
3d849981
JD		 1173 if (data->has_voltage & 0x39)
1174 sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group);
1c301fc5
JC		 1175 kfree(data);
1176
1177 return 0;
1178}
1179
1180static struct i2c_driver adt7475_driver = {
1181 .class = I2C_CLASS_HWMON,
1182 .driver = {
1183 .name = "adt7475",
1184 },
1185 .probe = adt7475_probe,
1186 .remove = adt7475_remove,
1187 .id_table = adt7475_id,
1188 .detect = adt7475_detect,
1189 .address_data = &addr_data,
1190};
1191
1192static void adt7475_read_hystersis(struct i2c_client *client)
1193{
1194 struct adt7475_data *data = i2c_get_clientdata(client);
1195
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);
1199}
1200
1201static void adt7475_read_pwm(struct i2c_client *client, int index)
1202{
1203 struct adt7475_data *data = i2c_get_clientdata(client);
1204 unsigned int v;
1205
1206 data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index));
1207
1208 /* Figure out the internal value for pwmctrl and pwmchan
1209 based on the current settings */
1210 v = (data->pwm[CONTROL][index] >> 5) & 7;
1211
1212 if (v == 3)
1213 data->pwmctl[index] = 0;
1214 else if (v == 7)
1215 data->pwmctl[index] = 1;
1216 else if (v == 4) {
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
1220 */
1221 data->pwm[INPUT][index] = 0;
1222 data->pwm[CONTROL][index] &= ~0xE0;
1223 data->pwm[CONTROL][index] |= (7 << 5);
1224
1225 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
1226 data->pwm[INPUT][index]);
1227
1228 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
1229 data->pwm[CONTROL][index]);
1230
1231 data->pwmctl[index] = 1;
1232 } else {
1233 data->pwmctl[index] = 2;
1234
1235 switch (v) {
1236 case 0:
1237 data->pwmchan[index] = 1;
1238 break;
1239 case 1:
1240 data->pwmchan[index] = 2;
1241 break;
1242 case 2:
1243 data->pwmchan[index] = 4;
1244 break;
1245 case 5:
1246 data->pwmchan[index] = 6;
1247 break;
1248 case 6:
1249 data->pwmchan[index] = 7;
1250 break;
1251 }
1252 }
1253}
1254
1255static struct adt7475_data *adt7475_update_device(struct device *dev)
1256{
1257 struct i2c_client *client = to_i2c_client(dev);
1258 struct adt7475_data *data = i2c_get_clientdata(client);
3d849981 1259 u16 ext;
1c301fc5
JC		 1260 int i;
1261
1262 mutex_lock(&data->lock);
1263
1264 /* Measurement values update every 2 seconds */
1265 if (time_after(jiffies, data->measure_updated + HZ * 2) ||
1266 !data->valid) {
1267 data->alarms = adt7475_read(REG_STATUS2) << 8;
1268 data->alarms |= adt7475_read(REG_STATUS1);
1269
3d849981
JD		 1270 ext = (adt7475_read(REG_EXTEND2) << 8) |
1271 adt7475_read(REG_EXTEND1);
cffb9dd0
JD		 1272 for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
1273 if (!(data->has_voltage & (1 << i)))
1274 continue;
1c301fc5
JC		 1275 data->voltage[INPUT][i] =
1276 (adt7475_read(VOLTAGE_REG(i)) << 2) |
cffb9dd0
JD		 1277 ((ext >> (i * 2)) & 3);
1278 }
1c301fc5 1279
1c301fc5
JC		 1280 for (i = 0; i < ADT7475_TEMP_COUNT; i++)
1281 data->temp[INPUT][i] =
1282 (adt7475_read(TEMP_REG(i)) << 2) |
3d849981
JD		 1283 ((ext >> ((i + 5) * 2)) & 3);
1284
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 |
1289 ((ext >> 4) & 3);
1290 }
1c301fc5
JC		 1291
1292 for (i = 0; i < ADT7475_TACH_COUNT; i++)
1293 data->tach[INPUT][i] =
1294 adt7475_read_word(client, TACH_REG(i));
1295
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));
1299
1300 data->measure_updated = jiffies;
1301 }
1302
1303 /* Limits and settings, should never change update every 60 seconds */
56e35eee 1304 if (time_after(jiffies, data->limits_updated + HZ * 60) ||
1c301fc5 1305 !data->valid) {
f99318b2 1306 data->config4 = adt7475_read(REG_CONFIG4);
1c301fc5
JC		 1307 data->config5 = adt7475_read(REG_CONFIG5);
1308
1309 for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
cffb9dd0
JD		 1310 if (!(data->has_voltage & (1 << i)))
1311 continue;
1c301fc5
JC		 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;
1317 }
1318
3d849981
JD		 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;
1322 }
1323
1c301fc5
JC		 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));
1336 }
1337 adt7475_read_hystersis(client);
1338
1339 for (i = 0; i < ADT7475_TACH_COUNT; i++)
1340 data->tach[MIN][i] =
1341 adt7475_read_word(client, TACH_MIN_REG(i));
1342
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);
1348 }
1349
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));
1353
1354 data->limits_updated = jiffies;
1355 data->valid = 1;
1356 }
1357
1358 mutex_unlock(&data->lock);
1359
1360 return data;
1361}
1362
1363static int __init sensors_adt7475_init(void)
1364{
1365 return i2c_add_driver(&adt7475_driver);
1366}
1367
1368static void __exit sensors_adt7475_exit(void)
1369{
1370 i2c_del_driver(&adt7475_driver);
1371}
1372
1373MODULE_AUTHOR("Advanced Micro Devices, Inc");
1374MODULE_DESCRIPTION("adt7475 driver");
1375MODULE_LICENSE("GPL");
1376
1377module_init(sensors_adt7475_init);
1378module_exit(sensors_adt7475_exit);
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