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hwmon: (lm85) Implement the standard PWM frequency interface
[deliverable/linux.git] / drivers / hwmon / lm85.c
CommitLineData
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
1f44809a
JD		 202 if (freq >= lm85_freq_map[7])
203 return 7;
204 for (i = 0; i < 7; ++i)
205 if (freq <= lm85_freq_map[i])
206 break;
e89e22b2 207 return i;
1da177e4 208}
1f44809a 209#define FREQ_FROM_REG(val) lm85_freq_map[(val) & 0x07]
1da177e4
LT		 210
211/* Since we can't use strings, I'm abusing these numbers
212 * to stand in for the following meanings:
213 * 1 -- PWM responds to Zone 1
214 * 2 -- PWM responds to Zone 2
215 * 3 -- PWM responds to Zone 3
216 * 23 -- PWM responds to the higher temp of Zone 2 or 3
217 * 123 -- PWM responds to highest of Zone 1, 2, or 3
218 * 0 -- PWM is always at 0% (ie, off)
219 * -1 -- PWM is always at 100%
220 * -2 -- PWM responds to manual control
221 */
222
e89e22b2
JD		 223static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
224#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
1da177e4 225
1f44809a 226static int ZONE_TO_REG(int zone)
1da177e4
LT		 227{
228 int i;
229
1f44809a
JD		 230 for (i = 0; i <= 7; ++i)
231 if (zone == lm85_zone_map[i])
232 break;
233 if (i > 7) /* Not found. */
1da177e4 234 i = 3; /* Always 100% */
e89e22b2 235 return i << 5;
1da177e4
LT		 236}
237
1f44809a
JD		 238#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
239#define HYST_FROM_REG(val) ((val) * 1000)
1da177e4 240
1da177e4
LT		 241/* Chip sampling rates
242 *
243 * Some sensors are not updated more frequently than once per second
244 * so it doesn't make sense to read them more often than that.
245 * We cache the results and return the saved data if the driver
246 * is called again before a second has elapsed.
247 *
248 * Also, there is significant configuration data for this chip
249 * given the automatic PWM fan control that is possible. There
250 * are about 47 bytes of config data to only 22 bytes of actual
251 * readings. So, we keep the config data up to date in the cache
252 * when it is written and only sample it once every 1 *minute*
253 */
254#define LM85_DATA_INTERVAL (HZ + HZ / 2)
255#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
256
1da177e4
LT		 257/* LM85 can automatically adjust fan speeds based on temperature
258 * This structure encapsulates an entire Zone config. There are
259 * three zones (one for each temperature input) on the lm85
260 */
261struct lm85_zone {
262 s8 limit; /* Low temp limit */
263 u8 hyst; /* Low limit hysteresis. (0-15) */
264 u8 range; /* Temp range, encoded */
265 s8 critical; /* "All fans ON" temp limit */
1f44809a 266 u8 off_desired; /* Actual "off" temperature specified. Preserved
1da177e4
LT		 267 * to prevent "drift" as other autofan control
268 * values change.
269 */
1f44809a 270 u8 max_desired; /* Actual "max" temperature specified. Preserved
1da177e4
LT		 271 * to prevent "drift" as other autofan control
272 * values change.
273 */
274};
275
276struct lm85_autofan {
277 u8 config; /* Register value */
1da177e4
LT		 278 u8 min_pwm; /* Minimum PWM value, encoded */
279 u8 min_off; /* Min PWM or OFF below "limit", flag */
280};
281
ed6bafbf
JD		 282/* For each registered chip, we need to keep some data in memory.
283 The structure is dynamically allocated. */
1da177e4
LT		 284struct lm85_data {
285 struct i2c_client client;
1beeffe4 286 struct device *hwmon_dev;
1da177e4
LT		 287 enum chips type;
288
9a61bf63 289 struct mutex update_lock;
1da177e4
LT		 290 int valid; /* !=0 if following fields are valid */
291 unsigned long last_reading; /* In jiffies */
292 unsigned long last_config; /* In jiffies */
293
294 u8 in[8]; /* Register value */
295 u8 in_max[8]; /* Register value */
296 u8 in_min[8]; /* Register value */
297 s8 temp[3]; /* Register value */
298 s8 temp_min[3]; /* Register value */
299 s8 temp_max[3]; /* Register value */
1da177e4
LT		 300 u16 fan[4]; /* Register value */
301 u16 fan_min[4]; /* Register value */
302 u8 pwm[3]; /* Register value */
34e7dc6c 303 u8 pwm_freq[3]; /* Register encoding */
1da177e4
LT		 304 u8 temp_ext[3]; /* Decoded values */
305 u8 in_ext[8]; /* Decoded values */
1da177e4
LT		 306 u8 vid; /* Register value */
307 u8 vrm; /* VRM version */
1da177e4
LT		 308 u32 alarms; /* Register encoding, combined */
309 struct lm85_autofan autofan[3];
310 struct lm85_zone zone[3];
311};
312
313static int lm85_attach_adapter(struct i2c_adapter *adapter);
314static int lm85_detect(struct i2c_adapter *adapter, int address,
315 int kind);
316static int lm85_detach_client(struct i2c_client *client);
317
f6c27fc1 318static int lm85_read_value(struct i2c_client *client, u8 reg);
e89e22b2 319static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
1da177e4 320static struct lm85_data *lm85_update_device(struct device *dev);
1da177e4
LT		 321
322
323static struct i2c_driver lm85_driver = {
cdaf7934 324 .driver = {
cdaf7934
LR		 325 .name = "lm85",
326 },
1da177e4
LT		 327 .attach_adapter = lm85_attach_adapter,
328 .detach_client = lm85_detach_client,
329};
330
331
332/* 4 Fans */
b353a487
JD		 333static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
334 char *buf)
1da177e4 335{
b353a487 336 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 337 struct lm85_data *data = lm85_update_device(dev);
1f44809a 338 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
1da177e4 339}
b353a487
JD		 340
341static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
342 char *buf)
1da177e4 343{
b353a487 344 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 345 struct lm85_data *data = lm85_update_device(dev);
1f44809a 346 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
1da177e4 347}
b353a487
JD		 348
349static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
350 const char *buf, size_t count)
1da177e4 351{
b353a487 352 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 353 struct i2c_client *client = to_i2c_client(dev);
354 struct lm85_data *data = i2c_get_clientdata(client);
63f281a6 355 unsigned long val = simple_strtoul(buf, NULL, 10);
1da177e4 356
9a61bf63 357 mutex_lock(&data->update_lock);
1da177e4
LT		 358 data->fan_min[nr] = FAN_TO_REG(val);
359 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
9a61bf63 360 mutex_unlock(&data->update_lock);
1da177e4
LT		 361 return count;
362}
363
364#define show_fan_offset(offset) \
b353a487
JD		 365static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
366 show_fan, NULL, offset - 1); \
367static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
368 show_fan_min, set_fan_min, offset - 1)
1da177e4
LT		 369
370show_fan_offset(1);
371show_fan_offset(2);
372show_fan_offset(3);
373show_fan_offset(4);
374
375/* vid, vrm, alarms */
376
1f44809a
JD		 377static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
378 char *buf)
1da177e4
LT		 379{
380 struct lm85_data *data = lm85_update_device(dev);
9c516ef4
JD		 381 int vid;
382
383 if (data->type == adt7463 && (data->vid & 0x80)) {
384 /* 6-pin VID (VRM 10) */
385 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
386 } else {
387 /* 5-pin VID (VRM 9) */
388 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
389 }
390
391 return sprintf(buf, "%d\n", vid);
1da177e4
LT		 392}
393
394static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
395
1f44809a
JD		 396static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
397 char *buf)
1da177e4 398{
90d6619a 399 struct lm85_data *data = dev_get_drvdata(dev);
1da177e4
LT		 400 return sprintf(buf, "%ld\n", (long) data->vrm);
401}
402
1f44809a
JD		 403static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
404 const char *buf, size_t count)
1da177e4 405{
8f74efe8
JD		 406 struct lm85_data *data = dev_get_drvdata(dev);
407 data->vrm = simple_strtoul(buf, NULL, 10);
1da177e4
LT		 408 return count;
409}
410
411static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
412
1f44809a
JD		 413static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
414 *attr, char *buf)
1da177e4
LT		 415{
416 struct lm85_data *data = lm85_update_device(dev);
68188ba7 417 return sprintf(buf, "%u\n", data->alarms);
1da177e4
LT		 418}
419
420static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
421
bf76e9d3
JD		 422static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
423 char *buf)
424{
425 int nr = to_sensor_dev_attr(attr)->index;
426 struct lm85_data *data = lm85_update_device(dev);
427 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
428}
429
430static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
431static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
432static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
433static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
434static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
435static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
436static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
437static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
438static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
439static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
440static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
441static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
442static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
443static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
444static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
445static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
446static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
447
1da177e4
LT		 448/* pwm */
449
b353a487
JD		 450static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
451 char *buf)
1da177e4 452{
b353a487 453 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 454 struct lm85_data *data = lm85_update_device(dev);
1f44809a 455 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
1da177e4 456}
b353a487
JD		 457
458static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
459 const char *buf, size_t count)
1da177e4 460{
b353a487 461 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 462 struct i2c_client *client = to_i2c_client(dev);
463 struct lm85_data *data = i2c_get_clientdata(client);
464 long val = simple_strtol(buf, NULL, 10);
465
9a61bf63 466 mutex_lock(&data->update_lock);
1da177e4
LT		 467 data->pwm[nr] = PWM_TO_REG(val);
468 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
9a61bf63 469 mutex_unlock(&data->update_lock);
1da177e4
LT		 470 return count;
471}
b353a487
JD		 472
473static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
474 *attr, char *buf)
1da177e4 475{
b353a487 476 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 477 struct lm85_data *data = lm85_update_device(dev);
4b4df95d 478 int pwm_zone, enable;
1da177e4
LT		 479
480 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
4b4df95d
JD		 481 switch (pwm_zone) {
482 case -1: /* PWM is always at 100% */
483 enable = 0;
484 break;
485 case 0: /* PWM is always at 0% */
486 case -2: /* PWM responds to manual control */
487 enable = 1;
488 break;
489 default: /* PWM in automatic mode */
490 enable = 2;
491 }
492 return sprintf(buf, "%d\n", enable);
1da177e4
LT		 493}
494
455f791e
JD		 495static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
496 *attr, const char *buf, size_t count)
497{
498 int nr = to_sensor_dev_attr(attr)->index;
499 struct i2c_client *client = to_i2c_client(dev);
500 struct lm85_data *data = i2c_get_clientdata(client);
501 long val = simple_strtol(buf, NULL, 10);
502 u8 config;
503
504 switch (val) {
505 case 0:
506 config = 3;
507 break;
508 case 1:
509 config = 7;
510 break;
511 case 2:
512 /* Here we have to choose arbitrarily one of the 5 possible
513 configurations; I go for the safest */
514 config = 6;
515 break;
516 default:
517 return -EINVAL;
518 }
519
520 mutex_lock(&data->update_lock);
521 data->autofan[nr].config = lm85_read_value(client,
522 LM85_REG_AFAN_CONFIG(nr));
523 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
524 | (config << 5);
525 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
526 data->autofan[nr].config);
527 mutex_unlock(&data->update_lock);
528 return count;
529}
530
34e7dc6c
JD		 531static ssize_t show_pwm_freq(struct device *dev,
532 struct device_attribute *attr, char *buf)
533{
534 int nr = to_sensor_dev_attr(attr)->index;
535 struct lm85_data *data = lm85_update_device(dev);
536 return sprintf(buf, "%d\n", FREQ_FROM_REG(data->pwm_freq[nr]));
537}
538
539static ssize_t set_pwm_freq(struct device *dev,
540 struct device_attribute *attr, const char *buf, size_t count)
541{
542 int nr = to_sensor_dev_attr(attr)->index;
543 struct i2c_client *client = to_i2c_client(dev);
544 struct lm85_data *data = i2c_get_clientdata(client);
545 long val = simple_strtol(buf, NULL, 10);
546
547 mutex_lock(&data->update_lock);
548 data->pwm_freq[nr] = FREQ_TO_REG(val);
549 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
550 (data->zone[nr].range << 4)
551 | data->pwm_freq[nr]);
552 mutex_unlock(&data->update_lock);
553 return count;
554}
555
1da177e4 556#define show_pwm_reg(offset) \
b353a487
JD		 557static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
558 show_pwm, set_pwm, offset - 1); \
455f791e 559static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
34e7dc6c
JD		 560 show_pwm_enable, set_pwm_enable, offset - 1); \
561static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
562 show_pwm_freq, set_pwm_freq, offset - 1)
1da177e4
LT		 563
564show_pwm_reg(1);
565show_pwm_reg(2);
566show_pwm_reg(3);
567
568/* Voltages */
569
b353a487
JD		 570static ssize_t show_in(struct device *dev, struct device_attribute *attr,
571 char *buf)
1da177e4 572{
b353a487 573 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 574 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 575 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
576 data->in_ext[nr]));
1da177e4 577}
b353a487 578
1f44809a 579static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
b353a487 580 char *buf)
1da177e4 581{
b353a487 582 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 583 struct lm85_data *data = lm85_update_device(dev);
1f44809a 584 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
1da177e4 585}
b353a487
JD		 586
587static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
588 const char *buf, size_t count)
1da177e4 589{
b353a487 590 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 591 struct i2c_client *client = to_i2c_client(dev);
592 struct lm85_data *data = i2c_get_clientdata(client);
593 long val = simple_strtol(buf, NULL, 10);
594
9a61bf63 595 mutex_lock(&data->update_lock);
1da177e4
LT		 596 data->in_min[nr] = INS_TO_REG(nr, val);
597 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
9a61bf63 598 mutex_unlock(&data->update_lock);
1da177e4
LT		 599 return count;
600}
b353a487
JD		 601
602static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
603 char *buf)
1da177e4 604{
b353a487 605 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 606 struct lm85_data *data = lm85_update_device(dev);
1f44809a 607 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
1da177e4 608}
b353a487
JD		 609
610static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
611 const char *buf, size_t count)
1da177e4 612{
b353a487 613 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 614 struct i2c_client *client = to_i2c_client(dev);
615 struct lm85_data *data = i2c_get_clientdata(client);
616 long val = simple_strtol(buf, NULL, 10);
617
9a61bf63 618 mutex_lock(&data->update_lock);
1da177e4
LT		 619 data->in_max[nr] = INS_TO_REG(nr, val);
620 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
9a61bf63 621 mutex_unlock(&data->update_lock);
1da177e4
LT		 622 return count;
623}
b353a487 624
1da177e4 625#define show_in_reg(offset) \
b353a487
JD		 626static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
627 show_in, NULL, offset); \
628static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
629 show_in_min, set_in_min, offset); \
630static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
631 show_in_max, set_in_max, offset)
1da177e4
LT		 632
633show_in_reg(0);
634show_in_reg(1);
635show_in_reg(2);
636show_in_reg(3);
637show_in_reg(4);
6b9aad2d
JD		 638show_in_reg(5);
639show_in_reg(6);
640show_in_reg(7);
1da177e4
LT		 641
642/* Temps */
643
b353a487
JD		 644static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
645 char *buf)
1da177e4 646{
b353a487 647 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 648 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 649 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
650 data->temp_ext[nr]));
1da177e4 651}
b353a487
JD		 652
653static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
654 char *buf)
1da177e4 655{
b353a487 656 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 657 struct lm85_data *data = lm85_update_device(dev);
1f44809a 658 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
1da177e4 659}
b353a487
JD		 660
661static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
662 const char *buf, size_t count)
1da177e4 663{
b353a487 664 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 665 struct i2c_client *client = to_i2c_client(dev);
666 struct lm85_data *data = i2c_get_clientdata(client);
667 long val = simple_strtol(buf, NULL, 10);
668
9a61bf63 669 mutex_lock(&data->update_lock);
1da177e4
LT		 670 data->temp_min[nr] = TEMP_TO_REG(val);
671 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
9a61bf63 672 mutex_unlock(&data->update_lock);
1da177e4
LT		 673 return count;
674}
b353a487
JD		 675
676static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
677 char *buf)
1da177e4 678{
b353a487 679 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 680 struct lm85_data *data = lm85_update_device(dev);
1f44809a 681 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1da177e4 682}
b353a487
JD		 683
684static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
685 const char *buf, size_t count)
1da177e4 686{
b353a487 687 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 688 struct i2c_client *client = to_i2c_client(dev);
689 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 690 long val = simple_strtol(buf, NULL, 10);
1da177e4 691
9a61bf63 692 mutex_lock(&data->update_lock);
1da177e4
LT		 693 data->temp_max[nr] = TEMP_TO_REG(val);
694 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
9a61bf63 695 mutex_unlock(&data->update_lock);
1da177e4
LT		 696 return count;
697}
b353a487 698
1da177e4 699#define show_temp_reg(offset) \
b353a487
JD		 700static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
701 show_temp, NULL, offset - 1); \
702static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
703 show_temp_min, set_temp_min, offset - 1); \
704static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
705 show_temp_max, set_temp_max, offset - 1);
1da177e4
LT		 706
707show_temp_reg(1);
708show_temp_reg(2);
709show_temp_reg(3);
710
711
712/* Automatic PWM control */
713
b353a487
JD		 714static ssize_t show_pwm_auto_channels(struct device *dev,
715 struct device_attribute *attr, char *buf)
1da177e4 716{
b353a487 717 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 718 struct lm85_data *data = lm85_update_device(dev);
1f44809a 719 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
1da177e4 720}
b353a487
JD		 721
722static ssize_t set_pwm_auto_channels(struct device *dev,
723 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 724{
b353a487 725 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 726 struct i2c_client *client = to_i2c_client(dev);
727 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 728 long val = simple_strtol(buf, NULL, 10);
1da177e4 729
9a61bf63 730 mutex_lock(&data->update_lock);
1da177e4 731 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
1f44809a 732 | ZONE_TO_REG(val);
1da177e4
LT		 733 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
734 data->autofan[nr].config);
9a61bf63 735 mutex_unlock(&data->update_lock);
1da177e4
LT		 736 return count;
737}
b353a487
JD		 738
739static ssize_t show_pwm_auto_pwm_min(struct device *dev,
740 struct device_attribute *attr, char *buf)
1da177e4 741{
b353a487 742 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 743 struct lm85_data *data = lm85_update_device(dev);
1f44809a 744 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
1da177e4 745}
b353a487
JD		 746
747static ssize_t set_pwm_auto_pwm_min(struct device *dev,
748 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 749{
b353a487 750 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 751 struct i2c_client *client = to_i2c_client(dev);
752 struct lm85_data *data = i2c_get_clientdata(client);
753 long val = simple_strtol(buf, NULL, 10);
754
9a61bf63 755 mutex_lock(&data->update_lock);
1da177e4
LT		 756 data->autofan[nr].min_pwm = PWM_TO_REG(val);
757 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
758 data->autofan[nr].min_pwm);
9a61bf63 759 mutex_unlock(&data->update_lock);
1da177e4
LT		 760 return count;
761}
b353a487
JD		 762
763static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
764 struct device_attribute *attr, char *buf)
1da177e4 765{
b353a487 766 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 767 struct lm85_data *data = lm85_update_device(dev);
1f44809a 768 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
1da177e4 769}
b353a487
JD		 770
771static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
772 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 773{
b353a487 774 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 775 struct i2c_client *client = to_i2c_client(dev);
776 struct lm85_data *data = i2c_get_clientdata(client);
777 long val = simple_strtol(buf, NULL, 10);
7133e56f 778 u8 tmp;
1da177e4 779
9a61bf63 780 mutex_lock(&data->update_lock);
1da177e4 781 data->autofan[nr].min_off = val;
7133e56f
JD		 782 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
783 tmp &= ~(0x20 << nr);
784 if (data->autofan[nr].min_off)
785 tmp |= 0x20 << nr;
786 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
9a61bf63 787 mutex_unlock(&data->update_lock);
1da177e4
LT		 788 return count;
789}
b353a487 790
1da177e4 791#define pwm_auto(offset) \
b353a487
JD		 792static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
793 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
794 set_pwm_auto_channels, offset - 1); \
795static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
796 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
797 set_pwm_auto_pwm_min, offset - 1); \
798static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
799 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
34e7dc6c 800 set_pwm_auto_pwm_minctl, offset - 1)
b353a487 801
1da177e4
LT		 802pwm_auto(1);
803pwm_auto(2);
804pwm_auto(3);
805
806/* Temperature settings for automatic PWM control */
807
b353a487
JD		 808static ssize_t show_temp_auto_temp_off(struct device *dev,
809 struct device_attribute *attr, char *buf)
1da177e4 810{
b353a487 811 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 812 struct lm85_data *data = lm85_update_device(dev);
1f44809a 813 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
1da177e4
LT		 814 HYST_FROM_REG(data->zone[nr].hyst));
815}
b353a487
JD		 816
817static ssize_t set_temp_auto_temp_off(struct device *dev,
818 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 819{
b353a487 820 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 821 struct i2c_client *client = to_i2c_client(dev);
822 struct lm85_data *data = i2c_get_clientdata(client);
823 int min;
824 long val = simple_strtol(buf, NULL, 10);
825
9a61bf63 826 mutex_lock(&data->update_lock);
1da177e4
LT		 827 min = TEMP_FROM_REG(data->zone[nr].limit);
828 data->zone[nr].off_desired = TEMP_TO_REG(val);
829 data->zone[nr].hyst = HYST_TO_REG(min - val);
1f44809a 830 if (nr == 0 || nr == 1) {
1da177e4
LT		 831 lm85_write_value(client, LM85_REG_AFAN_HYST1,
832 (data->zone[0].hyst << 4)
1f44809a 833 | data->zone[1].hyst);
1da177e4
LT		 834 } else {
835 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 836 (data->zone[2].hyst << 4));
1da177e4 837 }
9a61bf63 838 mutex_unlock(&data->update_lock);
1da177e4
LT		 839 return count;
840}
b353a487
JD		 841
842static ssize_t show_temp_auto_temp_min(struct device *dev,
843 struct device_attribute *attr, char *buf)
1da177e4 844{
b353a487 845 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 846 struct lm85_data *data = lm85_update_device(dev);
1f44809a 847 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
1da177e4 848}
b353a487
JD		 849
850static ssize_t set_temp_auto_temp_min(struct device *dev,
851 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 852{
b353a487 853 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 854 struct i2c_client *client = to_i2c_client(dev);
855 struct lm85_data *data = i2c_get_clientdata(client);
856 long val = simple_strtol(buf, NULL, 10);
857
9a61bf63 858 mutex_lock(&data->update_lock);
1da177e4
LT		 859 data->zone[nr].limit = TEMP_TO_REG(val);
860 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
861 data->zone[nr].limit);
862
863/* Update temp_auto_max and temp_auto_range */
864 data->zone[nr].range = RANGE_TO_REG(
865 TEMP_FROM_REG(data->zone[nr].max_desired) -
866 TEMP_FROM_REG(data->zone[nr].limit));
867 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
868 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 869 | (data->pwm_freq[nr] & 0x07));
1da177e4
LT		 870
871/* Update temp_auto_hyst and temp_auto_off */
872 data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
873 data->zone[nr].limit) - TEMP_FROM_REG(
874 data->zone[nr].off_desired));
1f44809a 875 if (nr == 0 || nr == 1) {
1da177e4
LT		 876 lm85_write_value(client, LM85_REG_AFAN_HYST1,
877 (data->zone[0].hyst << 4)
1f44809a 878 | data->zone[1].hyst);
1da177e4
LT		 879 } else {
880 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 881 (data->zone[2].hyst << 4));
1da177e4 882 }
9a61bf63 883 mutex_unlock(&data->update_lock);
1da177e4
LT		 884 return count;
885}
b353a487
JD		 886
887static ssize_t show_temp_auto_temp_max(struct device *dev,
888 struct device_attribute *attr, char *buf)
1da177e4 889{
b353a487 890 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 891 struct lm85_data *data = lm85_update_device(dev);
1f44809a 892 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
1da177e4
LT		 893 RANGE_FROM_REG(data->zone[nr].range));
894}
b353a487
JD		 895
896static ssize_t set_temp_auto_temp_max(struct device *dev,
897 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 898{
b353a487 899 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 900 struct i2c_client *client = to_i2c_client(dev);
901 struct lm85_data *data = i2c_get_clientdata(client);
902 int min;
903 long val = simple_strtol(buf, NULL, 10);
904
9a61bf63 905 mutex_lock(&data->update_lock);
1da177e4
LT		 906 min = TEMP_FROM_REG(data->zone[nr].limit);
907 data->zone[nr].max_desired = TEMP_TO_REG(val);
908 data->zone[nr].range = RANGE_TO_REG(
909 val - min);
910 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
911 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 912 | (data->pwm_freq[nr] & 0x07));
9a61bf63 913 mutex_unlock(&data->update_lock);
1da177e4
LT		 914 return count;
915}
b353a487
JD		 916
917static ssize_t show_temp_auto_temp_crit(struct device *dev,
918 struct device_attribute *attr, char *buf)
1da177e4 919{
b353a487 920 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 921 struct lm85_data *data = lm85_update_device(dev);
1f44809a 922 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
1da177e4 923}
b353a487
JD		 924
925static ssize_t set_temp_auto_temp_crit(struct device *dev,
1f44809a 926 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 927{
b353a487 928 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 929 struct i2c_client *client = to_i2c_client(dev);
930 struct lm85_data *data = i2c_get_clientdata(client);
931 long val = simple_strtol(buf, NULL, 10);
932
9a61bf63 933 mutex_lock(&data->update_lock);
1da177e4
LT		 934 data->zone[nr].critical = TEMP_TO_REG(val);
935 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
936 data->zone[nr].critical);
9a61bf63 937 mutex_unlock(&data->update_lock);
1da177e4
LT		 938 return count;
939}
b353a487 940
1da177e4 941#define temp_auto(offset) \
b353a487
JD		 942static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
943 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
944 set_temp_auto_temp_off, offset - 1); \
945static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
946 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
947 set_temp_auto_temp_min, offset - 1); \
948static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
949 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
950 set_temp_auto_temp_max, offset - 1); \
951static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
952 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
953 set_temp_auto_temp_crit, offset - 1);
954
1da177e4
LT		 955temp_auto(1);
956temp_auto(2);
957temp_auto(3);
958
d8d20615 959static int lm85_attach_adapter(struct i2c_adapter *adapter)
1da177e4
LT		 960{
961 if (!(adapter->class & I2C_CLASS_HWMON))
962 return 0;
2ed2dc3c 963 return i2c_probe(adapter, &addr_data, lm85_detect);
1da177e4
LT		 964}
965
0501a381 966static struct attribute *lm85_attributes[] = {
b353a487
JD		 967 &sensor_dev_attr_fan1_input.dev_attr.attr,
968 &sensor_dev_attr_fan2_input.dev_attr.attr,
969 &sensor_dev_attr_fan3_input.dev_attr.attr,
970 &sensor_dev_attr_fan4_input.dev_attr.attr,
971 &sensor_dev_attr_fan1_min.dev_attr.attr,
972 &sensor_dev_attr_fan2_min.dev_attr.attr,
973 &sensor_dev_attr_fan3_min.dev_attr.attr,
974 &sensor_dev_attr_fan4_min.dev_attr.attr,
bf76e9d3
JD		 975 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
976 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
977 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
978 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
b353a487
JD		 979
980 &sensor_dev_attr_pwm1.dev_attr.attr,
981 &sensor_dev_attr_pwm2.dev_attr.attr,
982 &sensor_dev_attr_pwm3.dev_attr.attr,
983 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
984 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
985 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
34e7dc6c
JD		 986 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
987 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
988 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
b353a487
JD		 989
990 &sensor_dev_attr_in0_input.dev_attr.attr,
991 &sensor_dev_attr_in1_input.dev_attr.attr,
992 &sensor_dev_attr_in2_input.dev_attr.attr,
993 &sensor_dev_attr_in3_input.dev_attr.attr,
994 &sensor_dev_attr_in0_min.dev_attr.attr,
995 &sensor_dev_attr_in1_min.dev_attr.attr,
996 &sensor_dev_attr_in2_min.dev_attr.attr,
997 &sensor_dev_attr_in3_min.dev_attr.attr,
998 &sensor_dev_attr_in0_max.dev_attr.attr,
999 &sensor_dev_attr_in1_max.dev_attr.attr,
1000 &sensor_dev_attr_in2_max.dev_attr.attr,
1001 &sensor_dev_attr_in3_max.dev_attr.attr,
bf76e9d3
JD		 1002 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1003 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1004 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1005 &sensor_dev_attr_in3_alarm.dev_attr.attr,
b353a487
JD		 1006
1007 &sensor_dev_attr_temp1_input.dev_attr.attr,
1008 &sensor_dev_attr_temp2_input.dev_attr.attr,
1009 &sensor_dev_attr_temp3_input.dev_attr.attr,
1010 &sensor_dev_attr_temp1_min.dev_attr.attr,
1011 &sensor_dev_attr_temp2_min.dev_attr.attr,
1012 &sensor_dev_attr_temp3_min.dev_attr.attr,
1013 &sensor_dev_attr_temp1_max.dev_attr.attr,
1014 &sensor_dev_attr_temp2_max.dev_attr.attr,
1015 &sensor_dev_attr_temp3_max.dev_attr.attr,
bf76e9d3
JD		 1016 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1017 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1018 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1019 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1020 &sensor_dev_attr_temp3_fault.dev_attr.attr,
b353a487
JD		 1021
1022 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1023 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1024 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1025 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1026 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1027 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1028 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1029 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1030 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
b353a487
JD		 1031
1032 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1033 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1034 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1035 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1036 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1037 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1038 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1039 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1040 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1041 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1042 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1043 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1044
0501a381
MH		 1045 &dev_attr_vrm.attr,
1046 &dev_attr_cpu0_vid.attr,
1047 &dev_attr_alarms.attr,
0501a381
MH		 1048 NULL
1049};
1050
1051static const struct attribute_group lm85_group = {
1052 .attrs = lm85_attributes,
1053};
1054
6b9aad2d 1055static struct attribute *lm85_attributes_in4[] = {
b353a487
JD		 1056 &sensor_dev_attr_in4_input.dev_attr.attr,
1057 &sensor_dev_attr_in4_min.dev_attr.attr,
1058 &sensor_dev_attr_in4_max.dev_attr.attr,
bf76e9d3 1059 &sensor_dev_attr_in4_alarm.dev_attr.attr,
0501a381
MH		 1060 NULL
1061};
1062
6b9aad2d
JD		 1063static const struct attribute_group lm85_group_in4 = {
1064 .attrs = lm85_attributes_in4,
1065};
1066
1067static struct attribute *lm85_attributes_in567[] = {
1068 &sensor_dev_attr_in5_input.dev_attr.attr,
1069 &sensor_dev_attr_in6_input.dev_attr.attr,
1070 &sensor_dev_attr_in7_input.dev_attr.attr,
1071 &sensor_dev_attr_in5_min.dev_attr.attr,
1072 &sensor_dev_attr_in6_min.dev_attr.attr,
1073 &sensor_dev_attr_in7_min.dev_attr.attr,
1074 &sensor_dev_attr_in5_max.dev_attr.attr,
1075 &sensor_dev_attr_in6_max.dev_attr.attr,
1076 &sensor_dev_attr_in7_max.dev_attr.attr,
bf76e9d3
JD		 1077 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1078 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1079 &sensor_dev_attr_in7_alarm.dev_attr.attr,
6b9aad2d
JD		 1080 NULL
1081};
1082
1083static const struct attribute_group lm85_group_in567 = {
1084 .attrs = lm85_attributes_in567,
0501a381
MH		 1085};
1086
5f447594
JD		 1087static void lm85_init_client(struct i2c_client *client)
1088{
1089 int value;
1090
1091 /* Start monitoring if needed */
1092 value = lm85_read_value(client, LM85_REG_CONFIG);
1093 if (!(value & 0x01)) {
1094 dev_info(&client->dev, "Starting monitoring\n");
1095 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1096 }
1097
1098 /* Warn about unusual configuration bits */
1099 if (value & 0x02)
1100 dev_warn(&client->dev, "Device configuration is locked\n");
1101 if (!(value & 0x04))
1102 dev_warn(&client->dev, "Device is not ready\n");
1103}
1104
d8d20615 1105static int lm85_detect(struct i2c_adapter *adapter, int address,
1da177e4
LT		 1106 int kind)
1107{
e89e22b2 1108 struct i2c_client *client;
1da177e4
LT		 1109 struct lm85_data *data;
1110 int err = 0;
e89e22b2 1111 const char *type_name;
1da177e4 1112
e89e22b2 1113 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1da177e4 1114 /* We need to be able to do byte I/O */
1f44809a
JD		 1115 goto ERROR0;
1116 }
1da177e4 1117
ba9c2e8d 1118 if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1da177e4
LT		 1119 err = -ENOMEM;
1120 goto ERROR0;
1121 }
1da177e4 1122
e89e22b2
JD		 1123 client = &data->client;
1124 i2c_set_clientdata(client, data);
1125 client->addr = address;
1126 client->adapter = adapter;
1127 client->driver = &lm85_driver;
1da177e4 1128
69fc1feb
JD		 1129 /* If auto-detecting, determine the chip type */
1130 if (kind < 0) {
1131 int company = lm85_read_value(client, LM85_REG_COMPANY);
1132 int verstep = lm85_read_value(client, LM85_REG_VERSTEP);
1133
1134 dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
1135 "COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1136 address, company, verstep);
1137
1138 /* All supported chips have the version in common */
1139 if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC) {
1140 dev_dbg(&adapter->dev, "Autodetection failed: "
1141 "unsupported version\n");
1142 goto ERROR1;
1143 }
1144 kind = any_chip;
1145
1146 /* Now, refine the detection */
1147 if (company == LM85_COMPANY_NATIONAL) {
1148 switch (verstep) {
1149 case LM85_VERSTEP_LM85C:
1150 kind = lm85c;
1151 break;
1152 case LM85_VERSTEP_LM85B:
1153 kind = lm85b;
1154 break;
1155 }
1156 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1157 switch (verstep) {
1158 case LM85_VERSTEP_ADM1027:
1159 kind = adm1027;
1160 break;
1161 case LM85_VERSTEP_ADT7463:
1162 case LM85_VERSTEP_ADT7463C:
1163 kind = adt7463;
1164 break;
1da177e4 1165 }
69fc1feb
JD		 1166 } else if (company == LM85_COMPANY_SMSC) {
1167 switch (verstep) {
1168 case LM85_VERSTEP_EMC6D100_A0:
1169 case LM85_VERSTEP_EMC6D100_A1:
1170 /* Note: we can't tell a '100 from a '101 */
1171 kind = emc6d100;
1172 break;
1173 case LM85_VERSTEP_EMC6D102:
1174 kind = emc6d102;
1175 break;
1176 }
1177 } else {
1178 dev_dbg(&adapter->dev, "Autodetection failed: "
1179 "unknown vendor\n");
1da177e4
LT		 1180 goto ERROR1;
1181 }
1182 }
1183
1184 /* Fill in the chip specific driver values */
e89e22b2
JD		 1185 switch (kind) {
1186 case lm85b:
1da177e4 1187 type_name = "lm85b";
e89e22b2
JD		 1188 break;
1189 case lm85c:
1da177e4 1190 type_name = "lm85c";
e89e22b2
JD		 1191 break;
1192 case adm1027:
1da177e4 1193 type_name = "adm1027";
e89e22b2
JD		 1194 break;
1195 case adt7463:
1da177e4 1196 type_name = "adt7463";
e89e22b2
JD		 1197 break;
1198 case emc6d100:
1da177e4 1199 type_name = "emc6d100";
e89e22b2
JD		 1200 break;
1201 case emc6d102:
1da177e4 1202 type_name = "emc6d102";
e89e22b2
JD		 1203 break;
1204 default:
1205 type_name = "lm85";
1206 }
1207 strlcpy(client->name, type_name, I2C_NAME_SIZE);
1da177e4
LT		 1208
1209 /* Fill in the remaining client fields */
1210 data->type = kind;
9a61bf63 1211 mutex_init(&data->update_lock);
1da177e4
LT		 1212
1213 /* Tell the I2C layer a new client has arrived */
e89e22b2
JD		 1214 err = i2c_attach_client(client);
1215 if (err)
1da177e4
LT		 1216 goto ERROR1;
1217
1218 /* Set the VRM version */
303760b4 1219 data->vrm = vid_which_vrm();
1da177e4
LT		 1220
1221 /* Initialize the LM85 chip */
e89e22b2 1222 lm85_init_client(client);
1da177e4
LT		 1223
1224 /* Register sysfs hooks */
e89e22b2
JD		 1225 err = sysfs_create_group(&client->dev.kobj, &lm85_group);
1226 if (err)
943b0830 1227 goto ERROR2;
1da177e4 1228
9c516ef4
JD		 1229 /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1230 as a sixth digital VID input rather than an analog input. */
e89e22b2 1231 data->vid = lm85_read_value(client, LM85_REG_VID);
0501a381 1232 if (!(kind == adt7463 && (data->vid & 0x80)))
e89e22b2 1233 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d
JD		 1234 &lm85_group_in4)))
1235 goto ERROR3;
1236
1237 /* The EMC6D100 has 3 additional voltage inputs */
1238 if (kind == emc6d100)
e89e22b2 1239 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1240 &lm85_group_in567)))
0501a381
MH		 1241 goto ERROR3;
1242
e89e22b2 1243 data->hwmon_dev = hwmon_device_register(&client->dev);
1beeffe4
TJ		 1244 if (IS_ERR(data->hwmon_dev)) {
1245 err = PTR_ERR(data->hwmon_dev);
0501a381 1246 goto ERROR3;
9c516ef4
JD		 1247 }
1248
1da177e4
LT		 1249 return 0;
1250
1251 /* Error out and cleanup code */
1f44809a 1252 ERROR3:
e89e22b2
JD		 1253 sysfs_remove_group(&client->dev.kobj, &lm85_group);
1254 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
6b9aad2d 1255 if (kind == emc6d100)
e89e22b2 1256 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1f44809a 1257 ERROR2:
e89e22b2 1258 i2c_detach_client(client);
1f44809a 1259 ERROR1:
1da177e4 1260 kfree(data);
1f44809a 1261 ERROR0:
1da177e4
LT		 1262 return err;
1263}
1264
d8d20615 1265static int lm85_detach_client(struct i2c_client *client)
1da177e4 1266{
943b0830 1267 struct lm85_data *data = i2c_get_clientdata(client);
1beeffe4 1268 hwmon_device_unregister(data->hwmon_dev);
0501a381 1269 sysfs_remove_group(&client->dev.kobj, &lm85_group);
6b9aad2d
JD		 1270 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1271 if (data->type == emc6d100)
1272 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1da177e4 1273 i2c_detach_client(client);
943b0830 1274 kfree(data);
1da177e4
LT		 1275 return 0;
1276}
1277
1278
d8d20615 1279static int lm85_read_value(struct i2c_client *client, u8 reg)
1da177e4
LT		 1280{
1281 int res;
1282
1283 /* What size location is it? */
1f44809a
JD		 1284 switch (reg) {
1285 case LM85_REG_FAN(0): /* Read WORD data */
1286 case LM85_REG_FAN(1):
1287 case LM85_REG_FAN(2):
1288 case LM85_REG_FAN(3):
1289 case LM85_REG_FAN_MIN(0):
1290 case LM85_REG_FAN_MIN(1):
1291 case LM85_REG_FAN_MIN(2):
1292 case LM85_REG_FAN_MIN(3):
1293 case LM85_REG_ALARM1: /* Read both bytes at once */
1294 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
1295 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
1296 break;
1da177e4
LT		 1297 default: /* Read BYTE data */
1298 res = i2c_smbus_read_byte_data(client, reg);
1f44809a 1299 break;
1da177e4
LT		 1300 }
1301
1f44809a 1302 return res;
1da177e4
LT		 1303}
1304
e89e22b2 1305static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
1da177e4 1306{
1f44809a
JD		 1307 switch (reg) {
1308 case LM85_REG_FAN(0): /* Write WORD data */
1309 case LM85_REG_FAN(1):
1310 case LM85_REG_FAN(2):
1311 case LM85_REG_FAN(3):
1312 case LM85_REG_FAN_MIN(0):
1313 case LM85_REG_FAN_MIN(1):
1314 case LM85_REG_FAN_MIN(2):
1315 case LM85_REG_FAN_MIN(3):
1da177e4 1316 /* NOTE: ALARM is read only, so not included here */
e89e22b2
JD		 1317 i2c_smbus_write_byte_data(client, reg, value & 0xff);
1318 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
1f44809a 1319 break;
1da177e4 1320 default: /* Write BYTE data */
e89e22b2 1321 i2c_smbus_write_byte_data(client, reg, value);
1f44809a 1322 break;
1da177e4 1323 }
1da177e4
LT		 1324}
1325
1da177e4
LT		 1326static struct lm85_data *lm85_update_device(struct device *dev)
1327{
1328 struct i2c_client *client = to_i2c_client(dev);
1329 struct lm85_data *data = i2c_get_clientdata(client);
1330 int i;
1331
9a61bf63 1332 mutex_lock(&data->update_lock);
1da177e4 1333
1f44809a
JD		 1334 if (!data->valid ||
1335 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
1da177e4
LT		 1336 /* Things that change quickly */
1337 dev_dbg(&client->dev, "Reading sensor values\n");
1f44809a 1338
1da177e4
LT		 1339 /* Have to read extended bits first to "freeze" the
1340 * more significant bits that are read later.
5a4d3ef3
JD		 1341 * There are 2 additional resolution bits per channel and we
1342 * have room for 4, so we shift them to the left.
1da177e4 1343 */
1f44809a 1344 if (data->type == adm1027 || data->type == adt7463) {
1da177e4
LT		 1345 int ext1 = lm85_read_value(client,
1346 ADM1027_REG_EXTEND_ADC1);
1347 int ext2 = lm85_read_value(client,
1348 ADM1027_REG_EXTEND_ADC2);
1349 int val = (ext1 << 8) + ext2;
1350
1f44809a
JD		 1351 for (i = 0; i <= 4; i++)
1352 data->in_ext[i] =
1353 ((val >> (i * 2)) & 0x03) << 2;
1da177e4 1354
1f44809a
JD		 1355 for (i = 0; i <= 2; i++)
1356 data->temp_ext[i] =
1357 (val >> ((i + 4) * 2)) & 0x0c;
1da177e4
LT		 1358 }
1359
9c516ef4
JD		 1360 data->vid = lm85_read_value(client, LM85_REG_VID);
1361
1362 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1363 data->in[i] =
1364 lm85_read_value(client, LM85_REG_IN(i));
e89e22b2
JD		 1365 data->fan[i] =
1366 lm85_read_value(client, LM85_REG_FAN(i));
1da177e4
LT		 1367 }
1368
9c516ef4
JD		 1369 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1370 data->in[4] = lm85_read_value(client,
1371 LM85_REG_IN(4));
1372 }
1373
1da177e4
LT		 1374 for (i = 0; i <= 2; ++i) {
1375 data->temp[i] =
1376 lm85_read_value(client, LM85_REG_TEMP(i));
1da177e4
LT		 1377 data->pwm[i] =
1378 lm85_read_value(client, LM85_REG_PWM(i));
1379 }
1380
1381 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1382
dd1ac538 1383 if (data->type == emc6d100) {
1da177e4
LT		 1384 /* Three more voltage sensors */
1385 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1386 data->in[i] = lm85_read_value(client,
1387 EMC6D100_REG_IN(i));
1da177e4
LT		 1388 }
1389 /* More alarm bits */
1f44809a
JD		 1390 data->alarms |= lm85_read_value(client,
1391 EMC6D100_REG_ALARM3) << 16;
1392 } else if (data->type == emc6d102) {
1da177e4
LT		 1393 /* Have to read LSB bits after the MSB ones because
1394 the reading of the MSB bits has frozen the
1395 LSBs (backward from the ADM1027).
1396 */
1397 int ext1 = lm85_read_value(client,
1398 EMC6D102_REG_EXTEND_ADC1);
1399 int ext2 = lm85_read_value(client,
1400 EMC6D102_REG_EXTEND_ADC2);
1401 int ext3 = lm85_read_value(client,
1402 EMC6D102_REG_EXTEND_ADC3);
1403 int ext4 = lm85_read_value(client,
1404 EMC6D102_REG_EXTEND_ADC4);
1405 data->in_ext[0] = ext3 & 0x0f;
1406 data->in_ext[1] = ext4 & 0x0f;
e89e22b2
JD		 1407 data->in_ext[2] = ext4 >> 4;
1408 data->in_ext[3] = ext3 >> 4;
1409 data->in_ext[4] = ext2 >> 4;
1da177e4
LT		 1410
1411 data->temp_ext[0] = ext1 & 0x0f;
1412 data->temp_ext[1] = ext2 & 0x0f;
e89e22b2 1413 data->temp_ext[2] = ext1 >> 4;
1da177e4
LT		 1414 }
1415
1f44809a
JD		 1416 data->last_reading = jiffies;
1417 } /* last_reading */
1da177e4 1418
1f44809a
JD		 1419 if (!data->valid ||
1420 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
1da177e4
LT		 1421 /* Things that don't change often */
1422 dev_dbg(&client->dev, "Reading config values\n");
1423
9c516ef4 1424 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1425 data->in_min[i] =
1426 lm85_read_value(client, LM85_REG_IN_MIN(i));
1427 data->in_max[i] =
1428 lm85_read_value(client, LM85_REG_IN_MAX(i));
e89e22b2
JD		 1429 data->fan_min[i] =
1430 lm85_read_value(client, LM85_REG_FAN_MIN(i));
1da177e4
LT		 1431 }
1432
9c516ef4
JD		 1433 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1434 data->in_min[4] = lm85_read_value(client,
1435 LM85_REG_IN_MIN(4));
1436 data->in_max[4] = lm85_read_value(client,
1437 LM85_REG_IN_MAX(4));
1438 }
1439
1f44809a 1440 if (data->type == emc6d100) {
1da177e4 1441 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1442 data->in_min[i] = lm85_read_value(client,
1443 EMC6D100_REG_IN_MIN(i));
1444 data->in_max[i] = lm85_read_value(client,
1445 EMC6D100_REG_IN_MAX(i));
1da177e4
LT		 1446 }
1447 }
1448
1da177e4 1449 for (i = 0; i <= 2; ++i) {
e89e22b2
JD		 1450 int val;
1451
1da177e4
LT		 1452 data->temp_min[i] =
1453 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1454 data->temp_max[i] =
1455 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1da177e4 1456
1da177e4
LT		 1457 data->autofan[i].config =
1458 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1459 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
34e7dc6c 1460 data->pwm_freq[i] = val & 0x07;
e89e22b2 1461 data->zone[i].range = val >> 4;
1da177e4
LT		 1462 data->autofan[i].min_pwm =
1463 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1464 data->zone[i].limit =
1465 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1466 data->zone[i].critical =
1467 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1468 }
1469
1470 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1f44809a
JD		 1471 data->autofan[0].min_off = (i & 0x20) != 0;
1472 data->autofan[1].min_off = (i & 0x40) != 0;
1473 data->autofan[2].min_off = (i & 0x80) != 0;
1da177e4
LT		 1474
1475 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
e89e22b2 1476 data->zone[0].hyst = i >> 4;
1f44809a 1477 data->zone[1].hyst = i & 0x0f;
1da177e4
LT		 1478
1479 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
e89e22b2 1480 data->zone[2].hyst = i >> 4;
1da177e4 1481
1da177e4 1482 data->last_config = jiffies;
1f44809a 1483 } /* last_config */
1da177e4
LT		 1484
1485 data->valid = 1;
1486
9a61bf63 1487 mutex_unlock(&data->update_lock);
1da177e4
LT		 1488
1489 return data;
1490}
1491
1492
1493static int __init sm_lm85_init(void)
1494{
1495 return i2c_add_driver(&lm85_driver);
1496}
1497
1f44809a 1498static void __exit sm_lm85_exit(void)
1da177e4
LT		 1499{
1500 i2c_del_driver(&lm85_driver);
1501}
1502
1da177e4 1503MODULE_LICENSE("GPL");
1f44809a
JD		 1504MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1505 "Margit Schubert-While <margitsw@t-online.de>, "
e89e22b2 1506 "Justin Thiessen <jthiessen@penguincomputing.com>");
1da177e4
LT		 1507MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1508
1509module_init(sm_lm85_init);
1510module_exit(sm_lm85_exit);
Linux kernel - Deliverables
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