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hwmon: (lm85) Select the closest PWM frequency
[net-next-2.6.git] / drivers / hwmon / lm85.c
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1da177e4
LT		 1/*
2 lm85.c - Part of lm_sensors, Linux kernel modules for hardware
3 monitoring
1f44809a 4 Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
1da177e4
LT		 5 Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
6 Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
7 Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
8
9 Chip details at <http://www.national.com/ds/LM/LM85.pdf>
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24*/
25
1da177e4
LT		 26#include <linux/module.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/jiffies.h>
30#include <linux/i2c.h>
943b0830 31#include <linux/hwmon.h>
303760b4 32#include <linux/hwmon-vid.h>
b353a487 33#include <linux/hwmon-sysfs.h>
943b0830 34#include <linux/err.h>
9a61bf63 35#include <linux/mutex.h>
1da177e4
LT		 36
37/* Addresses to scan */
25e9c86d 38static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
1da177e4
LT		 39
40/* Insmod parameters */
f4b50261 41I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
1da177e4
LT		 42
43/* The LM85 registers */
44
45#define LM85_REG_IN(nr) (0x20 + (nr))
46#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
47#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
48
49#define LM85_REG_TEMP(nr) (0x25 + (nr))
50#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
51#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
52
53/* Fan speeds are LSB, MSB (2 bytes) */
1f44809a
JD		 54#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
55#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
1da177e4
LT		 56
57#define LM85_REG_PWM(nr) (0x30 + (nr))
58
1da177e4
LT		 59#define LM85_REG_COMPANY 0x3e
60#define LM85_REG_VERSTEP 0x3f
61/* These are the recognized values for the above regs */
1da177e4
LT		 62#define LM85_COMPANY_NATIONAL 0x01
63#define LM85_COMPANY_ANALOG_DEV 0x41
1f44809a 64#define LM85_COMPANY_SMSC 0x5c
1da177e4
LT		 65#define LM85_VERSTEP_VMASK 0xf0
66#define LM85_VERSTEP_GENERIC 0x60
67#define LM85_VERSTEP_LM85C 0x60
68#define LM85_VERSTEP_LM85B 0x62
69#define LM85_VERSTEP_ADM1027 0x60
70#define LM85_VERSTEP_ADT7463 0x62
71#define LM85_VERSTEP_ADT7463C 0x6A
72#define LM85_VERSTEP_EMC6D100_A0 0x60
73#define LM85_VERSTEP_EMC6D100_A1 0x61
74#define LM85_VERSTEP_EMC6D102 0x65
75
76#define LM85_REG_CONFIG 0x40
77
78#define LM85_REG_ALARM1 0x41
79#define LM85_REG_ALARM2 0x42
80
81#define LM85_REG_VID 0x43
82
83/* Automated FAN control */
84#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
85#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
86#define LM85_REG_AFAN_SPIKE1 0x62
1da177e4
LT		 87#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
88#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
89#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
90#define LM85_REG_AFAN_HYST1 0x6d
91#define LM85_REG_AFAN_HYST2 0x6e
92
1da177e4
LT		 93#define ADM1027_REG_EXTEND_ADC1 0x76
94#define ADM1027_REG_EXTEND_ADC2 0x77
1da177e4
LT		 95
96#define EMC6D100_REG_ALARM3 0x7d
97/* IN5, IN6 and IN7 */
1f44809a
JD		 98#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
99#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
100#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
1da177e4
LT		 101#define EMC6D102_REG_EXTEND_ADC1 0x85
102#define EMC6D102_REG_EXTEND_ADC2 0x86
103#define EMC6D102_REG_EXTEND_ADC3 0x87
104#define EMC6D102_REG_EXTEND_ADC4 0x88
105
1da177e4 106
1f44809a 107/* Conversions. Rounding and limit checking is only done on the TO_REG
1da177e4
LT		 108 variants. Note that you should be a bit careful with which arguments
109 these macros are called: arguments may be evaluated more than once.
110 */
111
112/* IN are scaled acording to built-in resistors */
e89e22b2 113static const int lm85_scaling[] = { /* .001 Volts */
1f44809a
JD		 114 2500, 2250, 3300, 5000, 12000,
115 3300, 1500, 1800 /*EMC6D100*/
116};
117#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
1da177e4 118
1f44809a
JD		 119#define INS_TO_REG(n, val) \
120 SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
1da177e4 121
1f44809a 122#define INSEXT_FROM_REG(n, val, ext) \
5a4d3ef3 123 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
1da177e4 124
1f44809a 125#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
1da177e4
LT		 126
127/* FAN speed is measured using 90kHz clock */
63f281a6
JD		 128static inline u16 FAN_TO_REG(unsigned long val)
129{
130 if (!val)
131 return 0xffff;
132 return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
133}
1f44809a
JD		 134#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
135 5400000 / (val))
1da177e4
LT		 136
137/* Temperature is reported in .001 degC increments */
138#define TEMP_TO_REG(val) \
1f44809a
JD		 139 SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
140#define TEMPEXT_FROM_REG(val, ext) \
5a4d3ef3
JD		 141 SCALE(((val) << 4) + (ext), 16, 1000)
142#define TEMP_FROM_REG(val) ((val) * 1000)
1da177e4 143
1f44809a 144#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
1da177e4
LT		 145#define PWM_FROM_REG(val) (val)
146
147
148/* ZONEs have the following parameters:
149 * Limit (low) temp, 1. degC
150 * Hysteresis (below limit), 1. degC (0-15)
151 * Range of speed control, .1 degC (2-80)
152 * Critical (high) temp, 1. degC
153 *
154 * FAN PWMs have the following parameters:
155 * Reference Zone, 1, 2, 3, etc.
156 * Spinup time, .05 sec
157 * PWM value at limit/low temp, 1 count
158 * PWM Frequency, 1. Hz
159 * PWM is Min or OFF below limit, flag
160 * Invert PWM output, flag
161 *
162 * Some chips filter the temp, others the fan.
163 * Filter constant (or disabled) .1 seconds
164 */
165
166/* These are the zone temperature range encodings in .001 degree C */
e89e22b2 167static const int lm85_range_map[] = {
1f44809a
JD		 168 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
169 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
170};
171
172static int RANGE_TO_REG(int range)
1da177e4
LT		 173{
174 int i;
175
d38b1497 176 if (range >= lm85_range_map[15])
1f44809a 177 return 15;
d38b1497
JD		 178
179 /* Find the closest match */
180 for (i = 14; i >= 0; --i) {
181 if (range >= lm85_range_map[i]) {
182 if ((lm85_range_map[i + 1] - range) <
183 (range - lm85_range_map[i]))
184 return i + 1;
185 return i;
1da177e4
LT		 186 }
187 }
d38b1497
JD		 188
189 return 0;
1da177e4 190}
1f44809a 191#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
1da177e4 192
1da177e4 193/* These are the PWM frequency encodings */
34e7dc6c
JD		 194static const int lm85_freq_map[8] = { /* 1 Hz */
195 10, 15, 23, 30, 38, 47, 62, 94
1f44809a
JD		 196};
197
198static int FREQ_TO_REG(int freq)
1da177e4
LT		 199{
200 int i;
201
86010c98 202 /* Find the closest match */
1f44809a 203 for (i = 0; i < 7; ++i)
86010c98 204 if (freq <= (lm85_freq_map[i] + lm85_freq_map[i + 1]) / 2)
1f44809a 205 break;
e89e22b2 206 return i;
1da177e4 207}
1f44809a 208#define FREQ_FROM_REG(val) lm85_freq_map[(val) & 0x07]
1da177e4
LT		 209
210/* Since we can't use strings, I'm abusing these numbers
211 * to stand in for the following meanings:
212 * 1 -- PWM responds to Zone 1
213 * 2 -- PWM responds to Zone 2
214 * 3 -- PWM responds to Zone 3
215 * 23 -- PWM responds to the higher temp of Zone 2 or 3
216 * 123 -- PWM responds to highest of Zone 1, 2, or 3
217 * 0 -- PWM is always at 0% (ie, off)
218 * -1 -- PWM is always at 100%
219 * -2 -- PWM responds to manual control
220 */
221
e89e22b2
JD		 222static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
223#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
1da177e4 224
1f44809a 225static int ZONE_TO_REG(int zone)
1da177e4
LT		 226{
227 int i;
228
1f44809a
JD		 229 for (i = 0; i <= 7; ++i)
230 if (zone == lm85_zone_map[i])
231 break;
232 if (i > 7) /* Not found. */
1da177e4 233 i = 3; /* Always 100% */
e89e22b2 234 return i << 5;
1da177e4
LT		 235}
236
1f44809a
JD		 237#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
238#define HYST_FROM_REG(val) ((val) * 1000)
1da177e4 239
1da177e4
LT		 240/* Chip sampling rates
241 *
242 * Some sensors are not updated more frequently than once per second
243 * so it doesn't make sense to read them more often than that.
244 * We cache the results and return the saved data if the driver
245 * is called again before a second has elapsed.
246 *
247 * Also, there is significant configuration data for this chip
248 * given the automatic PWM fan control that is possible. There
249 * are about 47 bytes of config data to only 22 bytes of actual
250 * readings. So, we keep the config data up to date in the cache
251 * when it is written and only sample it once every 1 *minute*
252 */
253#define LM85_DATA_INTERVAL (HZ + HZ / 2)
254#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
255
1da177e4
LT		 256/* LM85 can automatically adjust fan speeds based on temperature
257 * This structure encapsulates an entire Zone config. There are
258 * three zones (one for each temperature input) on the lm85
259 */
260struct lm85_zone {
261 s8 limit; /* Low temp limit */
262 u8 hyst; /* Low limit hysteresis. (0-15) */
263 u8 range; /* Temp range, encoded */
264 s8 critical; /* "All fans ON" temp limit */
1f44809a 265 u8 off_desired; /* Actual "off" temperature specified. Preserved
1da177e4
LT		 266 * to prevent "drift" as other autofan control
267 * values change.
268 */
1f44809a 269 u8 max_desired; /* Actual "max" temperature specified. Preserved
1da177e4
LT		 270 * to prevent "drift" as other autofan control
271 * values change.
272 */
273};
274
275struct lm85_autofan {
276 u8 config; /* Register value */
1da177e4
LT		 277 u8 min_pwm; /* Minimum PWM value, encoded */
278 u8 min_off; /* Min PWM or OFF below "limit", flag */
279};
280
ed6bafbf
JD		 281/* For each registered chip, we need to keep some data in memory.
282 The structure is dynamically allocated. */
1da177e4
LT		 283struct lm85_data {
284 struct i2c_client client;
1beeffe4 285 struct device *hwmon_dev;
1da177e4
LT		 286 enum chips type;
287
9a61bf63 288 struct mutex update_lock;
1da177e4
LT		 289 int valid; /* !=0 if following fields are valid */
290 unsigned long last_reading; /* In jiffies */
291 unsigned long last_config; /* In jiffies */
292
293 u8 in[8]; /* Register value */
294 u8 in_max[8]; /* Register value */
295 u8 in_min[8]; /* Register value */
296 s8 temp[3]; /* Register value */
297 s8 temp_min[3]; /* Register value */
298 s8 temp_max[3]; /* Register value */
1da177e4
LT		 299 u16 fan[4]; /* Register value */
300 u16 fan_min[4]; /* Register value */
301 u8 pwm[3]; /* Register value */
34e7dc6c 302 u8 pwm_freq[3]; /* Register encoding */
1da177e4
LT		 303 u8 temp_ext[3]; /* Decoded values */
304 u8 in_ext[8]; /* Decoded values */
1da177e4
LT		 305 u8 vid; /* Register value */
306 u8 vrm; /* VRM version */
1da177e4
LT		 307 u32 alarms; /* Register encoding, combined */
308 struct lm85_autofan autofan[3];
309 struct lm85_zone zone[3];
310};
311
312static int lm85_attach_adapter(struct i2c_adapter *adapter);
313static int lm85_detect(struct i2c_adapter *adapter, int address,
314 int kind);
315static int lm85_detach_client(struct i2c_client *client);
316
f6c27fc1 317static int lm85_read_value(struct i2c_client *client, u8 reg);
e89e22b2 318static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
1da177e4 319static struct lm85_data *lm85_update_device(struct device *dev);
1da177e4
LT		 320
321
322static struct i2c_driver lm85_driver = {
cdaf7934 323 .driver = {
cdaf7934
LR		 324 .name = "lm85",
325 },
1da177e4
LT		 326 .attach_adapter = lm85_attach_adapter,
327 .detach_client = lm85_detach_client,
328};
329
330
331/* 4 Fans */
b353a487
JD		 332static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
333 char *buf)
1da177e4 334{
b353a487 335 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 336 struct lm85_data *data = lm85_update_device(dev);
1f44809a 337 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
1da177e4 338}
b353a487
JD		 339
340static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
341 char *buf)
1da177e4 342{
b353a487 343 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 344 struct lm85_data *data = lm85_update_device(dev);
1f44809a 345 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
1da177e4 346}
b353a487
JD		 347
348static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
349 const char *buf, size_t count)
1da177e4 350{
b353a487 351 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 352 struct i2c_client *client = to_i2c_client(dev);
353 struct lm85_data *data = i2c_get_clientdata(client);
63f281a6 354 unsigned long val = simple_strtoul(buf, NULL, 10);
1da177e4 355
9a61bf63 356 mutex_lock(&data->update_lock);
1da177e4
LT		 357 data->fan_min[nr] = FAN_TO_REG(val);
358 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
9a61bf63 359 mutex_unlock(&data->update_lock);
1da177e4
LT		 360 return count;
361}
362
363#define show_fan_offset(offset) \
b353a487
JD		 364static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
365 show_fan, NULL, offset - 1); \
366static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
367 show_fan_min, set_fan_min, offset - 1)
1da177e4
LT		 368
369show_fan_offset(1);
370show_fan_offset(2);
371show_fan_offset(3);
372show_fan_offset(4);
373
374/* vid, vrm, alarms */
375
1f44809a
JD		 376static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
377 char *buf)
1da177e4
LT		 378{
379 struct lm85_data *data = lm85_update_device(dev);
9c516ef4
JD		 380 int vid;
381
382 if (data->type == adt7463 && (data->vid & 0x80)) {
383 /* 6-pin VID (VRM 10) */
384 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
385 } else {
386 /* 5-pin VID (VRM 9) */
387 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
388 }
389
390 return sprintf(buf, "%d\n", vid);
1da177e4
LT		 391}
392
393static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
394
1f44809a
JD		 395static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
396 char *buf)
1da177e4 397{
90d6619a 398 struct lm85_data *data = dev_get_drvdata(dev);
1da177e4
LT		 399 return sprintf(buf, "%ld\n", (long) data->vrm);
400}
401
1f44809a
JD		 402static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
403 const char *buf, size_t count)
1da177e4 404{
8f74efe8
JD		 405 struct lm85_data *data = dev_get_drvdata(dev);
406 data->vrm = simple_strtoul(buf, NULL, 10);
1da177e4
LT		 407 return count;
408}
409
410static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
411
1f44809a
JD		 412static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
413 *attr, char *buf)
1da177e4
LT		 414{
415 struct lm85_data *data = lm85_update_device(dev);
68188ba7 416 return sprintf(buf, "%u\n", data->alarms);
1da177e4
LT		 417}
418
419static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
420
bf76e9d3
JD		 421static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
422 char *buf)
423{
424 int nr = to_sensor_dev_attr(attr)->index;
425 struct lm85_data *data = lm85_update_device(dev);
426 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
427}
428
429static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
430static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
431static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
432static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
433static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
434static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
435static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
436static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
437static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
438static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
439static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
440static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
441static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
442static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
443static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
444static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
445static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
446
1da177e4
LT		 447/* pwm */
448
b353a487
JD		 449static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
450 char *buf)
1da177e4 451{
b353a487 452 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 453 struct lm85_data *data = lm85_update_device(dev);
1f44809a 454 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
1da177e4 455}
b353a487
JD		 456
457static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
458 const char *buf, size_t count)
1da177e4 459{
b353a487 460 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 461 struct i2c_client *client = to_i2c_client(dev);
462 struct lm85_data *data = i2c_get_clientdata(client);
463 long val = simple_strtol(buf, NULL, 10);
464
9a61bf63 465 mutex_lock(&data->update_lock);
1da177e4
LT		 466 data->pwm[nr] = PWM_TO_REG(val);
467 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
9a61bf63 468 mutex_unlock(&data->update_lock);
1da177e4
LT		 469 return count;
470}
b353a487
JD		 471
472static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
473 *attr, char *buf)
1da177e4 474{
b353a487 475 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 476 struct lm85_data *data = lm85_update_device(dev);
4b4df95d 477 int pwm_zone, enable;
1da177e4
LT		 478
479 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
4b4df95d
JD		 480 switch (pwm_zone) {
481 case -1: /* PWM is always at 100% */
482 enable = 0;
483 break;
484 case 0: /* PWM is always at 0% */
485 case -2: /* PWM responds to manual control */
486 enable = 1;
487 break;
488 default: /* PWM in automatic mode */
489 enable = 2;
490 }
491 return sprintf(buf, "%d\n", enable);
1da177e4
LT		 492}
493
455f791e
JD		 494static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
495 *attr, const char *buf, size_t count)
496{
497 int nr = to_sensor_dev_attr(attr)->index;
498 struct i2c_client *client = to_i2c_client(dev);
499 struct lm85_data *data = i2c_get_clientdata(client);
500 long val = simple_strtol(buf, NULL, 10);
501 u8 config;
502
503 switch (val) {
504 case 0:
505 config = 3;
506 break;
507 case 1:
508 config = 7;
509 break;
510 case 2:
511 /* Here we have to choose arbitrarily one of the 5 possible
512 configurations; I go for the safest */
513 config = 6;
514 break;
515 default:
516 return -EINVAL;
517 }
518
519 mutex_lock(&data->update_lock);
520 data->autofan[nr].config = lm85_read_value(client,
521 LM85_REG_AFAN_CONFIG(nr));
522 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
523 | (config << 5);
524 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
525 data->autofan[nr].config);
526 mutex_unlock(&data->update_lock);
527 return count;
528}
529
34e7dc6c
JD		 530static ssize_t show_pwm_freq(struct device *dev,
531 struct device_attribute *attr, char *buf)
532{
533 int nr = to_sensor_dev_attr(attr)->index;
534 struct lm85_data *data = lm85_update_device(dev);
535 return sprintf(buf, "%d\n", FREQ_FROM_REG(data->pwm_freq[nr]));
536}
537
538static ssize_t set_pwm_freq(struct device *dev,
539 struct device_attribute *attr, const char *buf, size_t count)
540{
541 int nr = to_sensor_dev_attr(attr)->index;
542 struct i2c_client *client = to_i2c_client(dev);
543 struct lm85_data *data = i2c_get_clientdata(client);
544 long val = simple_strtol(buf, NULL, 10);
545
546 mutex_lock(&data->update_lock);
547 data->pwm_freq[nr] = FREQ_TO_REG(val);
548 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
549 (data->zone[nr].range << 4)
550 | data->pwm_freq[nr]);
551 mutex_unlock(&data->update_lock);
552 return count;
553}
554
1da177e4 555#define show_pwm_reg(offset) \
b353a487
JD		 556static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
557 show_pwm, set_pwm, offset - 1); \
455f791e 558static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
34e7dc6c
JD		 559 show_pwm_enable, set_pwm_enable, offset - 1); \
560static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
561 show_pwm_freq, set_pwm_freq, offset - 1)
1da177e4
LT		 562
563show_pwm_reg(1);
564show_pwm_reg(2);
565show_pwm_reg(3);
566
567/* Voltages */
568
b353a487
JD		 569static ssize_t show_in(struct device *dev, struct device_attribute *attr,
570 char *buf)
1da177e4 571{
b353a487 572 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 573 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 574 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
575 data->in_ext[nr]));
1da177e4 576}
b353a487 577
1f44809a 578static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
b353a487 579 char *buf)
1da177e4 580{
b353a487 581 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 582 struct lm85_data *data = lm85_update_device(dev);
1f44809a 583 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
1da177e4 584}
b353a487
JD		 585
586static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
587 const char *buf, size_t count)
1da177e4 588{
b353a487 589 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 590 struct i2c_client *client = to_i2c_client(dev);
591 struct lm85_data *data = i2c_get_clientdata(client);
592 long val = simple_strtol(buf, NULL, 10);
593
9a61bf63 594 mutex_lock(&data->update_lock);
1da177e4
LT		 595 data->in_min[nr] = INS_TO_REG(nr, val);
596 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
9a61bf63 597 mutex_unlock(&data->update_lock);
1da177e4
LT		 598 return count;
599}
b353a487
JD		 600
601static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
602 char *buf)
1da177e4 603{
b353a487 604 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 605 struct lm85_data *data = lm85_update_device(dev);
1f44809a 606 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
1da177e4 607}
b353a487
JD		 608
609static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
610 const char *buf, size_t count)
1da177e4 611{
b353a487 612 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 613 struct i2c_client *client = to_i2c_client(dev);
614 struct lm85_data *data = i2c_get_clientdata(client);
615 long val = simple_strtol(buf, NULL, 10);
616
9a61bf63 617 mutex_lock(&data->update_lock);
1da177e4
LT		 618 data->in_max[nr] = INS_TO_REG(nr, val);
619 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
9a61bf63 620 mutex_unlock(&data->update_lock);
1da177e4
LT		 621 return count;
622}
b353a487 623
1da177e4 624#define show_in_reg(offset) \
b353a487
JD		 625static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
626 show_in, NULL, offset); \
627static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
628 show_in_min, set_in_min, offset); \
629static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
630 show_in_max, set_in_max, offset)
1da177e4
LT		 631
632show_in_reg(0);
633show_in_reg(1);
634show_in_reg(2);
635show_in_reg(3);
636show_in_reg(4);
6b9aad2d
JD		 637show_in_reg(5);
638show_in_reg(6);
639show_in_reg(7);
1da177e4
LT		 640
641/* Temps */
642
b353a487
JD		 643static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
644 char *buf)
1da177e4 645{
b353a487 646 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 647 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 648 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
649 data->temp_ext[nr]));
1da177e4 650}
b353a487
JD		 651
652static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
653 char *buf)
1da177e4 654{
b353a487 655 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 656 struct lm85_data *data = lm85_update_device(dev);
1f44809a 657 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
1da177e4 658}
b353a487
JD		 659
660static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
661 const char *buf, size_t count)
1da177e4 662{
b353a487 663 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 664 struct i2c_client *client = to_i2c_client(dev);
665 struct lm85_data *data = i2c_get_clientdata(client);
666 long val = simple_strtol(buf, NULL, 10);
667
9a61bf63 668 mutex_lock(&data->update_lock);
1da177e4
LT		 669 data->temp_min[nr] = TEMP_TO_REG(val);
670 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
9a61bf63 671 mutex_unlock(&data->update_lock);
1da177e4
LT		 672 return count;
673}
b353a487
JD		 674
675static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
676 char *buf)
1da177e4 677{
b353a487 678 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 679 struct lm85_data *data = lm85_update_device(dev);
1f44809a 680 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1da177e4 681}
b353a487
JD		 682
683static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
684 const char *buf, size_t count)
1da177e4 685{
b353a487 686 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 687 struct i2c_client *client = to_i2c_client(dev);
688 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 689 long val = simple_strtol(buf, NULL, 10);
1da177e4 690
9a61bf63 691 mutex_lock(&data->update_lock);
1da177e4
LT		 692 data->temp_max[nr] = TEMP_TO_REG(val);
693 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
9a61bf63 694 mutex_unlock(&data->update_lock);
1da177e4
LT		 695 return count;
696}
b353a487 697
1da177e4 698#define show_temp_reg(offset) \
b353a487
JD		 699static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
700 show_temp, NULL, offset - 1); \
701static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
702 show_temp_min, set_temp_min, offset - 1); \
703static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
704 show_temp_max, set_temp_max, offset - 1);
1da177e4
LT		 705
706show_temp_reg(1);
707show_temp_reg(2);
708show_temp_reg(3);
709
710
711/* Automatic PWM control */
712
b353a487
JD		 713static ssize_t show_pwm_auto_channels(struct device *dev,
714 struct device_attribute *attr, char *buf)
1da177e4 715{
b353a487 716 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 717 struct lm85_data *data = lm85_update_device(dev);
1f44809a 718 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
1da177e4 719}
b353a487
JD		 720
721static ssize_t set_pwm_auto_channels(struct device *dev,
722 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 723{
b353a487 724 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 725 struct i2c_client *client = to_i2c_client(dev);
726 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 727 long val = simple_strtol(buf, NULL, 10);
1da177e4 728
9a61bf63 729 mutex_lock(&data->update_lock);
1da177e4 730 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
1f44809a 731 | ZONE_TO_REG(val);
1da177e4
LT		 732 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
733 data->autofan[nr].config);
9a61bf63 734 mutex_unlock(&data->update_lock);
1da177e4
LT		 735 return count;
736}
b353a487
JD		 737
738static ssize_t show_pwm_auto_pwm_min(struct device *dev,
739 struct device_attribute *attr, char *buf)
1da177e4 740{
b353a487 741 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 742 struct lm85_data *data = lm85_update_device(dev);
1f44809a 743 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
1da177e4 744}
b353a487
JD		 745
746static ssize_t set_pwm_auto_pwm_min(struct device *dev,
747 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 748{
b353a487 749 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 750 struct i2c_client *client = to_i2c_client(dev);
751 struct lm85_data *data = i2c_get_clientdata(client);
752 long val = simple_strtol(buf, NULL, 10);
753
9a61bf63 754 mutex_lock(&data->update_lock);
1da177e4
LT		 755 data->autofan[nr].min_pwm = PWM_TO_REG(val);
756 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
757 data->autofan[nr].min_pwm);
9a61bf63 758 mutex_unlock(&data->update_lock);
1da177e4
LT		 759 return count;
760}
b353a487
JD		 761
762static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
763 struct device_attribute *attr, char *buf)
1da177e4 764{
b353a487 765 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 766 struct lm85_data *data = lm85_update_device(dev);
1f44809a 767 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
1da177e4 768}
b353a487
JD		 769
770static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
771 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 772{
b353a487 773 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 774 struct i2c_client *client = to_i2c_client(dev);
775 struct lm85_data *data = i2c_get_clientdata(client);
776 long val = simple_strtol(buf, NULL, 10);
7133e56f 777 u8 tmp;
1da177e4 778
9a61bf63 779 mutex_lock(&data->update_lock);
1da177e4 780 data->autofan[nr].min_off = val;
7133e56f
JD		 781 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
782 tmp &= ~(0x20 << nr);
783 if (data->autofan[nr].min_off)
784 tmp |= 0x20 << nr;
785 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
9a61bf63 786 mutex_unlock(&data->update_lock);
1da177e4
LT		 787 return count;
788}
b353a487 789
1da177e4 790#define pwm_auto(offset) \
b353a487
JD		 791static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
792 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
793 set_pwm_auto_channels, offset - 1); \
794static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
795 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
796 set_pwm_auto_pwm_min, offset - 1); \
797static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
798 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
34e7dc6c 799 set_pwm_auto_pwm_minctl, offset - 1)
b353a487 800
1da177e4
LT		 801pwm_auto(1);
802pwm_auto(2);
803pwm_auto(3);
804
805/* Temperature settings for automatic PWM control */
806
b353a487
JD		 807static ssize_t show_temp_auto_temp_off(struct device *dev,
808 struct device_attribute *attr, char *buf)
1da177e4 809{
b353a487 810 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 811 struct lm85_data *data = lm85_update_device(dev);
1f44809a 812 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
1da177e4
LT		 813 HYST_FROM_REG(data->zone[nr].hyst));
814}
b353a487
JD		 815
816static ssize_t set_temp_auto_temp_off(struct device *dev,
817 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 818{
b353a487 819 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 820 struct i2c_client *client = to_i2c_client(dev);
821 struct lm85_data *data = i2c_get_clientdata(client);
822 int min;
823 long val = simple_strtol(buf, NULL, 10);
824
9a61bf63 825 mutex_lock(&data->update_lock);
1da177e4
LT		 826 min = TEMP_FROM_REG(data->zone[nr].limit);
827 data->zone[nr].off_desired = TEMP_TO_REG(val);
828 data->zone[nr].hyst = HYST_TO_REG(min - val);
1f44809a 829 if (nr == 0 || nr == 1) {
1da177e4
LT		 830 lm85_write_value(client, LM85_REG_AFAN_HYST1,
831 (data->zone[0].hyst << 4)
1f44809a 832 | data->zone[1].hyst);
1da177e4
LT		 833 } else {
834 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 835 (data->zone[2].hyst << 4));
1da177e4 836 }
9a61bf63 837 mutex_unlock(&data->update_lock);
1da177e4
LT		 838 return count;
839}
b353a487
JD		 840
841static ssize_t show_temp_auto_temp_min(struct device *dev,
842 struct device_attribute *attr, char *buf)
1da177e4 843{
b353a487 844 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 845 struct lm85_data *data = lm85_update_device(dev);
1f44809a 846 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
1da177e4 847}
b353a487
JD		 848
849static ssize_t set_temp_auto_temp_min(struct device *dev,
850 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 851{
b353a487 852 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 853 struct i2c_client *client = to_i2c_client(dev);
854 struct lm85_data *data = i2c_get_clientdata(client);
855 long val = simple_strtol(buf, NULL, 10);
856
9a61bf63 857 mutex_lock(&data->update_lock);
1da177e4
LT		 858 data->zone[nr].limit = TEMP_TO_REG(val);
859 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
860 data->zone[nr].limit);
861
862/* Update temp_auto_max and temp_auto_range */
863 data->zone[nr].range = RANGE_TO_REG(
864 TEMP_FROM_REG(data->zone[nr].max_desired) -
865 TEMP_FROM_REG(data->zone[nr].limit));
866 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
867 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 868 | (data->pwm_freq[nr] & 0x07));
1da177e4
LT		 869
870/* Update temp_auto_hyst and temp_auto_off */
871 data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
872 data->zone[nr].limit) - TEMP_FROM_REG(
873 data->zone[nr].off_desired));
1f44809a 874 if (nr == 0 || nr == 1) {
1da177e4
LT		 875 lm85_write_value(client, LM85_REG_AFAN_HYST1,
876 (data->zone[0].hyst << 4)
1f44809a 877 | data->zone[1].hyst);
1da177e4
LT		 878 } else {
879 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 880 (data->zone[2].hyst << 4));
1da177e4 881 }
9a61bf63 882 mutex_unlock(&data->update_lock);
1da177e4
LT		 883 return count;
884}
b353a487
JD		 885
886static ssize_t show_temp_auto_temp_max(struct device *dev,
887 struct device_attribute *attr, char *buf)
1da177e4 888{
b353a487 889 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 890 struct lm85_data *data = lm85_update_device(dev);
1f44809a 891 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
1da177e4
LT		 892 RANGE_FROM_REG(data->zone[nr].range));
893}
b353a487
JD		 894
895static ssize_t set_temp_auto_temp_max(struct device *dev,
896 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 897{
b353a487 898 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 899 struct i2c_client *client = to_i2c_client(dev);
900 struct lm85_data *data = i2c_get_clientdata(client);
901 int min;
902 long val = simple_strtol(buf, NULL, 10);
903
9a61bf63 904 mutex_lock(&data->update_lock);
1da177e4
LT		 905 min = TEMP_FROM_REG(data->zone[nr].limit);
906 data->zone[nr].max_desired = TEMP_TO_REG(val);
907 data->zone[nr].range = RANGE_TO_REG(
908 val - min);
909 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
910 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 911 | (data->pwm_freq[nr] & 0x07));
9a61bf63 912 mutex_unlock(&data->update_lock);
1da177e4
LT		 913 return count;
914}
b353a487
JD		 915
916static ssize_t show_temp_auto_temp_crit(struct device *dev,
917 struct device_attribute *attr, char *buf)
1da177e4 918{
b353a487 919 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 920 struct lm85_data *data = lm85_update_device(dev);
1f44809a 921 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
1da177e4 922}
b353a487
JD		 923
924static ssize_t set_temp_auto_temp_crit(struct device *dev,
1f44809a 925 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 926{
b353a487 927 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 928 struct i2c_client *client = to_i2c_client(dev);
929 struct lm85_data *data = i2c_get_clientdata(client);
930 long val = simple_strtol(buf, NULL, 10);
931
9a61bf63 932 mutex_lock(&data->update_lock);
1da177e4
LT		 933 data->zone[nr].critical = TEMP_TO_REG(val);
934 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
935 data->zone[nr].critical);
9a61bf63 936 mutex_unlock(&data->update_lock);
1da177e4
LT		 937 return count;
938}
b353a487 939
1da177e4 940#define temp_auto(offset) \
b353a487
JD		 941static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
942 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
943 set_temp_auto_temp_off, offset - 1); \
944static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
945 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
946 set_temp_auto_temp_min, offset - 1); \
947static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
948 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
949 set_temp_auto_temp_max, offset - 1); \
950static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
951 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
952 set_temp_auto_temp_crit, offset - 1);
953
1da177e4
LT		 954temp_auto(1);
955temp_auto(2);
956temp_auto(3);
957
d8d20615 958static int lm85_attach_adapter(struct i2c_adapter *adapter)
1da177e4
LT		 959{
960 if (!(adapter->class & I2C_CLASS_HWMON))
961 return 0;
2ed2dc3c 962 return i2c_probe(adapter, &addr_data, lm85_detect);
1da177e4
LT		 963}
964
0501a381 965static struct attribute *lm85_attributes[] = {
b353a487
JD		 966 &sensor_dev_attr_fan1_input.dev_attr.attr,
967 &sensor_dev_attr_fan2_input.dev_attr.attr,
968 &sensor_dev_attr_fan3_input.dev_attr.attr,
969 &sensor_dev_attr_fan4_input.dev_attr.attr,
970 &sensor_dev_attr_fan1_min.dev_attr.attr,
971 &sensor_dev_attr_fan2_min.dev_attr.attr,
972 &sensor_dev_attr_fan3_min.dev_attr.attr,
973 &sensor_dev_attr_fan4_min.dev_attr.attr,
bf76e9d3
JD		 974 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
975 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
976 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
977 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
b353a487
JD		 978
979 &sensor_dev_attr_pwm1.dev_attr.attr,
980 &sensor_dev_attr_pwm2.dev_attr.attr,
981 &sensor_dev_attr_pwm3.dev_attr.attr,
982 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
983 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
984 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
34e7dc6c
JD		 985 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
986 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
987 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
b353a487
JD		 988
989 &sensor_dev_attr_in0_input.dev_attr.attr,
990 &sensor_dev_attr_in1_input.dev_attr.attr,
991 &sensor_dev_attr_in2_input.dev_attr.attr,
992 &sensor_dev_attr_in3_input.dev_attr.attr,
993 &sensor_dev_attr_in0_min.dev_attr.attr,
994 &sensor_dev_attr_in1_min.dev_attr.attr,
995 &sensor_dev_attr_in2_min.dev_attr.attr,
996 &sensor_dev_attr_in3_min.dev_attr.attr,
997 &sensor_dev_attr_in0_max.dev_attr.attr,
998 &sensor_dev_attr_in1_max.dev_attr.attr,
999 &sensor_dev_attr_in2_max.dev_attr.attr,
1000 &sensor_dev_attr_in3_max.dev_attr.attr,
bf76e9d3
JD		 1001 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1002 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1003 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1004 &sensor_dev_attr_in3_alarm.dev_attr.attr,
b353a487
JD		 1005
1006 &sensor_dev_attr_temp1_input.dev_attr.attr,
1007 &sensor_dev_attr_temp2_input.dev_attr.attr,
1008 &sensor_dev_attr_temp3_input.dev_attr.attr,
1009 &sensor_dev_attr_temp1_min.dev_attr.attr,
1010 &sensor_dev_attr_temp2_min.dev_attr.attr,
1011 &sensor_dev_attr_temp3_min.dev_attr.attr,
1012 &sensor_dev_attr_temp1_max.dev_attr.attr,
1013 &sensor_dev_attr_temp2_max.dev_attr.attr,
1014 &sensor_dev_attr_temp3_max.dev_attr.attr,
bf76e9d3
JD		 1015 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1016 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1017 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1018 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1019 &sensor_dev_attr_temp3_fault.dev_attr.attr,
b353a487
JD		 1020
1021 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1022 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1023 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1024 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1025 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1026 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1027 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1028 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1029 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
b353a487
JD		 1030
1031 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1032 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1033 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1034 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1035 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1036 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1037 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1038 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1039 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1040 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1041 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1042 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1043
0501a381
MH		 1044 &dev_attr_vrm.attr,
1045 &dev_attr_cpu0_vid.attr,
1046 &dev_attr_alarms.attr,
0501a381
MH		 1047 NULL
1048};
1049
1050static const struct attribute_group lm85_group = {
1051 .attrs = lm85_attributes,
1052};
1053
6b9aad2d 1054static struct attribute *lm85_attributes_in4[] = {
b353a487
JD		 1055 &sensor_dev_attr_in4_input.dev_attr.attr,
1056 &sensor_dev_attr_in4_min.dev_attr.attr,
1057 &sensor_dev_attr_in4_max.dev_attr.attr,
bf76e9d3 1058 &sensor_dev_attr_in4_alarm.dev_attr.attr,
0501a381
MH		 1059 NULL
1060};
1061
6b9aad2d
JD		 1062static const struct attribute_group lm85_group_in4 = {
1063 .attrs = lm85_attributes_in4,
1064};
1065
1066static struct attribute *lm85_attributes_in567[] = {
1067 &sensor_dev_attr_in5_input.dev_attr.attr,
1068 &sensor_dev_attr_in6_input.dev_attr.attr,
1069 &sensor_dev_attr_in7_input.dev_attr.attr,
1070 &sensor_dev_attr_in5_min.dev_attr.attr,
1071 &sensor_dev_attr_in6_min.dev_attr.attr,
1072 &sensor_dev_attr_in7_min.dev_attr.attr,
1073 &sensor_dev_attr_in5_max.dev_attr.attr,
1074 &sensor_dev_attr_in6_max.dev_attr.attr,
1075 &sensor_dev_attr_in7_max.dev_attr.attr,
bf76e9d3
JD		 1076 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1077 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1078 &sensor_dev_attr_in7_alarm.dev_attr.attr,
6b9aad2d
JD		 1079 NULL
1080};
1081
1082static const struct attribute_group lm85_group_in567 = {
1083 .attrs = lm85_attributes_in567,
0501a381
MH		 1084};
1085
5f447594
JD		 1086static void lm85_init_client(struct i2c_client *client)
1087{
1088 int value;
1089
1090 /* Start monitoring if needed */
1091 value = lm85_read_value(client, LM85_REG_CONFIG);
1092 if (!(value & 0x01)) {
1093 dev_info(&client->dev, "Starting monitoring\n");
1094 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1095 }
1096
1097 /* Warn about unusual configuration bits */
1098 if (value & 0x02)
1099 dev_warn(&client->dev, "Device configuration is locked\n");
1100 if (!(value & 0x04))
1101 dev_warn(&client->dev, "Device is not ready\n");
1102}
1103
d8d20615 1104static int lm85_detect(struct i2c_adapter *adapter, int address,
1da177e4
LT		 1105 int kind)
1106{
e89e22b2 1107 struct i2c_client *client;
1da177e4
LT		 1108 struct lm85_data *data;
1109 int err = 0;
e89e22b2 1110 const char *type_name;
1da177e4 1111
e89e22b2 1112 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1da177e4 1113 /* We need to be able to do byte I/O */
1f44809a
JD		 1114 goto ERROR0;
1115 }
1da177e4 1116
ba9c2e8d 1117 if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1da177e4
LT		 1118 err = -ENOMEM;
1119 goto ERROR0;
1120 }
1da177e4 1121
e89e22b2
JD		 1122 client = &data->client;
1123 i2c_set_clientdata(client, data);
1124 client->addr = address;
1125 client->adapter = adapter;
1126 client->driver = &lm85_driver;
1da177e4 1127
69fc1feb
JD		 1128 /* If auto-detecting, determine the chip type */
1129 if (kind < 0) {
1130 int company = lm85_read_value(client, LM85_REG_COMPANY);
1131 int verstep = lm85_read_value(client, LM85_REG_VERSTEP);
1132
1133 dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
1134 "COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1135 address, company, verstep);
1136
1137 /* All supported chips have the version in common */
1138 if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC) {
1139 dev_dbg(&adapter->dev, "Autodetection failed: "
1140 "unsupported version\n");
1141 goto ERROR1;
1142 }
1143 kind = any_chip;
1144
1145 /* Now, refine the detection */
1146 if (company == LM85_COMPANY_NATIONAL) {
1147 switch (verstep) {
1148 case LM85_VERSTEP_LM85C:
1149 kind = lm85c;
1150 break;
1151 case LM85_VERSTEP_LM85B:
1152 kind = lm85b;
1153 break;
1154 }
1155 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1156 switch (verstep) {
1157 case LM85_VERSTEP_ADM1027:
1158 kind = adm1027;
1159 break;
1160 case LM85_VERSTEP_ADT7463:
1161 case LM85_VERSTEP_ADT7463C:
1162 kind = adt7463;
1163 break;
1da177e4 1164 }
69fc1feb
JD		 1165 } else if (company == LM85_COMPANY_SMSC) {
1166 switch (verstep) {
1167 case LM85_VERSTEP_EMC6D100_A0:
1168 case LM85_VERSTEP_EMC6D100_A1:
1169 /* Note: we can't tell a '100 from a '101 */
1170 kind = emc6d100;
1171 break;
1172 case LM85_VERSTEP_EMC6D102:
1173 kind = emc6d102;
1174 break;
1175 }
1176 } else {
1177 dev_dbg(&adapter->dev, "Autodetection failed: "
1178 "unknown vendor\n");
1da177e4
LT		 1179 goto ERROR1;
1180 }
1181 }
1182
1183 /* Fill in the chip specific driver values */
e89e22b2
JD		 1184 switch (kind) {
1185 case lm85b:
1da177e4 1186 type_name = "lm85b";
e89e22b2
JD		 1187 break;
1188 case lm85c:
1da177e4 1189 type_name = "lm85c";
e89e22b2
JD		 1190 break;
1191 case adm1027:
1da177e4 1192 type_name = "adm1027";
e89e22b2
JD		 1193 break;
1194 case adt7463:
1da177e4 1195 type_name = "adt7463";
e89e22b2
JD		 1196 break;
1197 case emc6d100:
1da177e4 1198 type_name = "emc6d100";
e89e22b2
JD		 1199 break;
1200 case emc6d102:
1da177e4 1201 type_name = "emc6d102";
e89e22b2
JD		 1202 break;
1203 default:
1204 type_name = "lm85";
1205 }
1206 strlcpy(client->name, type_name, I2C_NAME_SIZE);
1da177e4
LT		 1207
1208 /* Fill in the remaining client fields */
1209 data->type = kind;
9a61bf63 1210 mutex_init(&data->update_lock);
1da177e4
LT		 1211
1212 /* Tell the I2C layer a new client has arrived */
e89e22b2
JD		 1213 err = i2c_attach_client(client);
1214 if (err)
1da177e4
LT		 1215 goto ERROR1;
1216
1217 /* Set the VRM version */
303760b4 1218 data->vrm = vid_which_vrm();
1da177e4
LT		 1219
1220 /* Initialize the LM85 chip */
e89e22b2 1221 lm85_init_client(client);
1da177e4
LT		 1222
1223 /* Register sysfs hooks */
e89e22b2
JD		 1224 err = sysfs_create_group(&client->dev.kobj, &lm85_group);
1225 if (err)
943b0830 1226 goto ERROR2;
1da177e4 1227
9c516ef4
JD		 1228 /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1229 as a sixth digital VID input rather than an analog input. */
e89e22b2 1230 data->vid = lm85_read_value(client, LM85_REG_VID);
0501a381 1231 if (!(kind == adt7463 && (data->vid & 0x80)))
e89e22b2 1232 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d
JD		 1233 &lm85_group_in4)))
1234 goto ERROR3;
1235
1236 /* The EMC6D100 has 3 additional voltage inputs */
1237 if (kind == emc6d100)
e89e22b2 1238 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1239 &lm85_group_in567)))
0501a381
MH		 1240 goto ERROR3;
1241
e89e22b2 1242 data->hwmon_dev = hwmon_device_register(&client->dev);
1beeffe4
TJ		 1243 if (IS_ERR(data->hwmon_dev)) {
1244 err = PTR_ERR(data->hwmon_dev);
0501a381 1245 goto ERROR3;
9c516ef4
JD		 1246 }
1247
1da177e4
LT		 1248 return 0;
1249
1250 /* Error out and cleanup code */
1f44809a 1251 ERROR3:
e89e22b2
JD		 1252 sysfs_remove_group(&client->dev.kobj, &lm85_group);
1253 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
6b9aad2d 1254 if (kind == emc6d100)
e89e22b2 1255 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1f44809a 1256 ERROR2:
e89e22b2 1257 i2c_detach_client(client);
1f44809a 1258 ERROR1:
1da177e4 1259 kfree(data);
1f44809a 1260 ERROR0:
1da177e4
LT		 1261 return err;
1262}
1263
d8d20615 1264static int lm85_detach_client(struct i2c_client *client)
1da177e4 1265{
943b0830 1266 struct lm85_data *data = i2c_get_clientdata(client);
1beeffe4 1267 hwmon_device_unregister(data->hwmon_dev);
0501a381 1268 sysfs_remove_group(&client->dev.kobj, &lm85_group);
6b9aad2d
JD		 1269 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1270 if (data->type == emc6d100)
1271 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1da177e4 1272 i2c_detach_client(client);
943b0830 1273 kfree(data);
1da177e4
LT		 1274 return 0;
1275}
1276
1277
d8d20615 1278static int lm85_read_value(struct i2c_client *client, u8 reg)
1da177e4
LT		 1279{
1280 int res;
1281
1282 /* What size location is it? */
1f44809a
JD		 1283 switch (reg) {
1284 case LM85_REG_FAN(0): /* Read WORD data */
1285 case LM85_REG_FAN(1):
1286 case LM85_REG_FAN(2):
1287 case LM85_REG_FAN(3):
1288 case LM85_REG_FAN_MIN(0):
1289 case LM85_REG_FAN_MIN(1):
1290 case LM85_REG_FAN_MIN(2):
1291 case LM85_REG_FAN_MIN(3):
1292 case LM85_REG_ALARM1: /* Read both bytes at once */
1293 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
1294 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
1295 break;
1da177e4
LT		 1296 default: /* Read BYTE data */
1297 res = i2c_smbus_read_byte_data(client, reg);
1f44809a 1298 break;
1da177e4
LT		 1299 }
1300
1f44809a 1301 return res;
1da177e4
LT		 1302}
1303
e89e22b2 1304static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
1da177e4 1305{
1f44809a
JD		 1306 switch (reg) {
1307 case LM85_REG_FAN(0): /* Write WORD data */
1308 case LM85_REG_FAN(1):
1309 case LM85_REG_FAN(2):
1310 case LM85_REG_FAN(3):
1311 case LM85_REG_FAN_MIN(0):
1312 case LM85_REG_FAN_MIN(1):
1313 case LM85_REG_FAN_MIN(2):
1314 case LM85_REG_FAN_MIN(3):
1da177e4 1315 /* NOTE: ALARM is read only, so not included here */
e89e22b2
JD		 1316 i2c_smbus_write_byte_data(client, reg, value & 0xff);
1317 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
1f44809a 1318 break;
1da177e4 1319 default: /* Write BYTE data */
e89e22b2 1320 i2c_smbus_write_byte_data(client, reg, value);
1f44809a 1321 break;
1da177e4 1322 }
1da177e4
LT		 1323}
1324
1da177e4
LT		 1325static struct lm85_data *lm85_update_device(struct device *dev)
1326{
1327 struct i2c_client *client = to_i2c_client(dev);
1328 struct lm85_data *data = i2c_get_clientdata(client);
1329 int i;
1330
9a61bf63 1331 mutex_lock(&data->update_lock);
1da177e4 1332
1f44809a
JD		 1333 if (!data->valid ||
1334 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
1da177e4
LT		 1335 /* Things that change quickly */
1336 dev_dbg(&client->dev, "Reading sensor values\n");
1f44809a 1337
1da177e4
LT		 1338 /* Have to read extended bits first to "freeze" the
1339 * more significant bits that are read later.
5a4d3ef3
JD		 1340 * There are 2 additional resolution bits per channel and we
1341 * have room for 4, so we shift them to the left.
1da177e4 1342 */
1f44809a 1343 if (data->type == adm1027 || data->type == adt7463) {
1da177e4
LT		 1344 int ext1 = lm85_read_value(client,
1345 ADM1027_REG_EXTEND_ADC1);
1346 int ext2 = lm85_read_value(client,
1347 ADM1027_REG_EXTEND_ADC2);
1348 int val = (ext1 << 8) + ext2;
1349
1f44809a
JD		 1350 for (i = 0; i <= 4; i++)
1351 data->in_ext[i] =
1352 ((val >> (i * 2)) & 0x03) << 2;
1da177e4 1353
1f44809a
JD		 1354 for (i = 0; i <= 2; i++)
1355 data->temp_ext[i] =
1356 (val >> ((i + 4) * 2)) & 0x0c;
1da177e4
LT		 1357 }
1358
9c516ef4
JD		 1359 data->vid = lm85_read_value(client, LM85_REG_VID);
1360
1361 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1362 data->in[i] =
1363 lm85_read_value(client, LM85_REG_IN(i));
e89e22b2
JD		 1364 data->fan[i] =
1365 lm85_read_value(client, LM85_REG_FAN(i));
1da177e4
LT		 1366 }
1367
9c516ef4
JD		 1368 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1369 data->in[4] = lm85_read_value(client,
1370 LM85_REG_IN(4));
1371 }
1372
1da177e4
LT		 1373 for (i = 0; i <= 2; ++i) {
1374 data->temp[i] =
1375 lm85_read_value(client, LM85_REG_TEMP(i));
1da177e4
LT		 1376 data->pwm[i] =
1377 lm85_read_value(client, LM85_REG_PWM(i));
1378 }
1379
1380 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1381
dd1ac538 1382 if (data->type == emc6d100) {
1da177e4
LT		 1383 /* Three more voltage sensors */
1384 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1385 data->in[i] = lm85_read_value(client,
1386 EMC6D100_REG_IN(i));
1da177e4
LT		 1387 }
1388 /* More alarm bits */
1f44809a
JD		 1389 data->alarms |= lm85_read_value(client,
1390 EMC6D100_REG_ALARM3) << 16;
1391 } else if (data->type == emc6d102) {
1da177e4
LT		 1392 /* Have to read LSB bits after the MSB ones because
1393 the reading of the MSB bits has frozen the
1394 LSBs (backward from the ADM1027).
1395 */
1396 int ext1 = lm85_read_value(client,
1397 EMC6D102_REG_EXTEND_ADC1);
1398 int ext2 = lm85_read_value(client,
1399 EMC6D102_REG_EXTEND_ADC2);
1400 int ext3 = lm85_read_value(client,
1401 EMC6D102_REG_EXTEND_ADC3);
1402 int ext4 = lm85_read_value(client,
1403 EMC6D102_REG_EXTEND_ADC4);
1404 data->in_ext[0] = ext3 & 0x0f;
1405 data->in_ext[1] = ext4 & 0x0f;
e89e22b2
JD		 1406 data->in_ext[2] = ext4 >> 4;
1407 data->in_ext[3] = ext3 >> 4;
1408 data->in_ext[4] = ext2 >> 4;
1da177e4
LT		 1409
1410 data->temp_ext[0] = ext1 & 0x0f;
1411 data->temp_ext[1] = ext2 & 0x0f;
e89e22b2 1412 data->temp_ext[2] = ext1 >> 4;
1da177e4
LT		 1413 }
1414
1f44809a
JD		 1415 data->last_reading = jiffies;
1416 } /* last_reading */
1da177e4 1417
1f44809a
JD		 1418 if (!data->valid ||
1419 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
1da177e4
LT		 1420 /* Things that don't change often */
1421 dev_dbg(&client->dev, "Reading config values\n");
1422
9c516ef4 1423 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1424 data->in_min[i] =
1425 lm85_read_value(client, LM85_REG_IN_MIN(i));
1426 data->in_max[i] =
1427 lm85_read_value(client, LM85_REG_IN_MAX(i));
e89e22b2
JD		 1428 data->fan_min[i] =
1429 lm85_read_value(client, LM85_REG_FAN_MIN(i));
1da177e4
LT		 1430 }
1431
9c516ef4
JD		 1432 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1433 data->in_min[4] = lm85_read_value(client,
1434 LM85_REG_IN_MIN(4));
1435 data->in_max[4] = lm85_read_value(client,
1436 LM85_REG_IN_MAX(4));
1437 }
1438
1f44809a 1439 if (data->type == emc6d100) {
1da177e4 1440 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1441 data->in_min[i] = lm85_read_value(client,
1442 EMC6D100_REG_IN_MIN(i));
1443 data->in_max[i] = lm85_read_value(client,
1444 EMC6D100_REG_IN_MAX(i));
1da177e4
LT		 1445 }
1446 }
1447
1da177e4 1448 for (i = 0; i <= 2; ++i) {
e89e22b2
JD		 1449 int val;
1450
1da177e4
LT		 1451 data->temp_min[i] =
1452 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1453 data->temp_max[i] =
1454 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1da177e4 1455
1da177e4
LT		 1456 data->autofan[i].config =
1457 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1458 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
34e7dc6c 1459 data->pwm_freq[i] = val & 0x07;
e89e22b2 1460 data->zone[i].range = val >> 4;
1da177e4
LT		 1461 data->autofan[i].min_pwm =
1462 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1463 data->zone[i].limit =
1464 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1465 data->zone[i].critical =
1466 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1467 }
1468
1469 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1f44809a
JD		 1470 data->autofan[0].min_off = (i & 0x20) != 0;
1471 data->autofan[1].min_off = (i & 0x40) != 0;
1472 data->autofan[2].min_off = (i & 0x80) != 0;
1da177e4
LT		 1473
1474 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
e89e22b2 1475 data->zone[0].hyst = i >> 4;
1f44809a 1476 data->zone[1].hyst = i & 0x0f;
1da177e4
LT		 1477
1478 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
e89e22b2 1479 data->zone[2].hyst = i >> 4;
1da177e4 1480
1da177e4 1481 data->last_config = jiffies;
1f44809a 1482 } /* last_config */
1da177e4
LT		 1483
1484 data->valid = 1;
1485
9a61bf63 1486 mutex_unlock(&data->update_lock);
1da177e4
LT		 1487
1488 return data;
1489}
1490
1491
1492static int __init sm_lm85_init(void)
1493{
1494 return i2c_add_driver(&lm85_driver);
1495}
1496
1f44809a 1497static void __exit sm_lm85_exit(void)
1da177e4
LT		 1498{
1499 i2c_del_driver(&lm85_driver);
1500}
1501
1da177e4 1502MODULE_LICENSE("GPL");
1f44809a
JD		 1503MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1504 "Margit Schubert-While <margitsw@t-online.de>, "
e89e22b2 1505 "Justin Thiessen <jthiessen@penguincomputing.com>");
1da177e4
LT		 1506MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1507
1508module_init(sm_lm85_init);
1509module_exit(sm_lm85_exit);
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