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hwmon: (lm85) Fix ADT7468 frequency table
[net-next-2.6.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>
d42a2eb5 8 Copyright (C) 2007--2009 Jean Delvare <khali@linux-fr.org>
1da177e4
LT		 9
10 Chip details at <http://www.national.com/ds/LM/LM85.pdf>
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25*/
26
1da177e4
LT		 27#include <linux/module.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/jiffies.h>
31#include <linux/i2c.h>
943b0830 32#include <linux/hwmon.h>
303760b4 33#include <linux/hwmon-vid.h>
b353a487 34#include <linux/hwmon-sysfs.h>
943b0830 35#include <linux/err.h>
9a61bf63 36#include <linux/mutex.h>
1da177e4
LT		 37
38/* Addresses to scan */
25e9c86d 39static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
1da177e4 40
e5e9f44c
JD		 41enum chips {
42 any_chip, lm85b, lm85c,
43 adm1027, adt7463, adt7468,
44 emc6d100, emc6d102
45};
1da177e4
LT		 46
47/* The LM85 registers */
48
49#define LM85_REG_IN(nr) (0x20 + (nr))
50#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
51#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
52
53#define LM85_REG_TEMP(nr) (0x25 + (nr))
54#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
55#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
56
57/* Fan speeds are LSB, MSB (2 bytes) */
1f44809a
JD		 58#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
59#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
1da177e4
LT		 60
61#define LM85_REG_PWM(nr) (0x30 + (nr))
62
1da177e4
LT		 63#define LM85_REG_COMPANY 0x3e
64#define LM85_REG_VERSTEP 0x3f
79b92f2b
DW		 65
66#define ADT7468_REG_CFG5 0x7c
67#define ADT7468_OFF64 0x01
68#define IS_ADT7468_OFF64(data) \
69 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
70
1da177e4 71/* These are the recognized values for the above regs */
1da177e4
LT		 72#define LM85_COMPANY_NATIONAL 0x01
73#define LM85_COMPANY_ANALOG_DEV 0x41
1f44809a 74#define LM85_COMPANY_SMSC 0x5c
1da177e4
LT		 75#define LM85_VERSTEP_VMASK 0xf0
76#define LM85_VERSTEP_GENERIC 0x60
c15ade65 77#define LM85_VERSTEP_GENERIC2 0x70
1da177e4
LT		 78#define LM85_VERSTEP_LM85C 0x60
79#define LM85_VERSTEP_LM85B 0x62
5cfaf338
JD		 80#define LM85_VERSTEP_LM96000_1 0x68
81#define LM85_VERSTEP_LM96000_2 0x69
1da177e4
LT		 82#define LM85_VERSTEP_ADM1027 0x60
83#define LM85_VERSTEP_ADT7463 0x62
84#define LM85_VERSTEP_ADT7463C 0x6A
79b92f2b
DW		 85#define LM85_VERSTEP_ADT7468_1 0x71
86#define LM85_VERSTEP_ADT7468_2 0x72
1da177e4
LT		 87#define LM85_VERSTEP_EMC6D100_A0 0x60
88#define LM85_VERSTEP_EMC6D100_A1 0x61
89#define LM85_VERSTEP_EMC6D102 0x65
90
91#define LM85_REG_CONFIG 0x40
92
93#define LM85_REG_ALARM1 0x41
94#define LM85_REG_ALARM2 0x42
95
96#define LM85_REG_VID 0x43
97
98/* Automated FAN control */
99#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
100#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
101#define LM85_REG_AFAN_SPIKE1 0x62
1da177e4
LT		 102#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
103#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
104#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
105#define LM85_REG_AFAN_HYST1 0x6d
106#define LM85_REG_AFAN_HYST2 0x6e
107
1da177e4
LT		 108#define ADM1027_REG_EXTEND_ADC1 0x76
109#define ADM1027_REG_EXTEND_ADC2 0x77
1da177e4
LT		 110
111#define EMC6D100_REG_ALARM3 0x7d
112/* IN5, IN6 and IN7 */
1f44809a
JD		 113#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
114#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
115#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
1da177e4
LT		 116#define EMC6D102_REG_EXTEND_ADC1 0x85
117#define EMC6D102_REG_EXTEND_ADC2 0x86
118#define EMC6D102_REG_EXTEND_ADC3 0x87
119#define EMC6D102_REG_EXTEND_ADC4 0x88
120
1da177e4 121
1f44809a 122/* Conversions. Rounding and limit checking is only done on the TO_REG
1da177e4
LT		 123 variants. Note that you should be a bit careful with which arguments
124 these macros are called: arguments may be evaluated more than once.
125 */
126
127/* IN are scaled acording to built-in resistors */
e89e22b2 128static const int lm85_scaling[] = { /* .001 Volts */
1f44809a
JD		 129 2500, 2250, 3300, 5000, 12000,
130 3300, 1500, 1800 /*EMC6D100*/
131};
132#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
1da177e4 133
1f44809a
JD		 134#define INS_TO_REG(n, val) \
135 SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
1da177e4 136
1f44809a 137#define INSEXT_FROM_REG(n, val, ext) \
5a4d3ef3 138 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
1da177e4 139
1f44809a 140#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
1da177e4
LT		 141
142/* FAN speed is measured using 90kHz clock */
63f281a6
JD		 143static inline u16 FAN_TO_REG(unsigned long val)
144{
145 if (!val)
146 return 0xffff;
147 return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
148}
1f44809a
JD		 149#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
150 5400000 / (val))
1da177e4
LT		 151
152/* Temperature is reported in .001 degC increments */
153#define TEMP_TO_REG(val) \
1f44809a
JD		 154 SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
155#define TEMPEXT_FROM_REG(val, ext) \
5a4d3ef3
JD		 156 SCALE(((val) << 4) + (ext), 16, 1000)
157#define TEMP_FROM_REG(val) ((val) * 1000)
1da177e4 158
1f44809a 159#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
1da177e4
LT		 160#define PWM_FROM_REG(val) (val)
161
162
163/* ZONEs have the following parameters:
164 * Limit (low) temp, 1. degC
165 * Hysteresis (below limit), 1. degC (0-15)
166 * Range of speed control, .1 degC (2-80)
167 * Critical (high) temp, 1. degC
168 *
169 * FAN PWMs have the following parameters:
170 * Reference Zone, 1, 2, 3, etc.
171 * Spinup time, .05 sec
172 * PWM value at limit/low temp, 1 count
173 * PWM Frequency, 1. Hz
174 * PWM is Min or OFF below limit, flag
175 * Invert PWM output, flag
176 *
177 * Some chips filter the temp, others the fan.
178 * Filter constant (or disabled) .1 seconds
179 */
180
181/* These are the zone temperature range encodings in .001 degree C */
e89e22b2 182static const int lm85_range_map[] = {
1f44809a
JD		 183 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
184 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
185};
186
187static int RANGE_TO_REG(int range)
1da177e4
LT		 188{
189 int i;
190
d38b1497 191 /* Find the closest match */
1b92adad
JD		 192 for (i = 0; i < 15; ++i) {
193 if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2)
194 break;
1da177e4 195 }
d38b1497 196
1b92adad 197 return i;
1da177e4 198}
1f44809a 199#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
1da177e4 200
1da177e4 201/* These are the PWM frequency encodings */
34e7dc6c 202static const int lm85_freq_map[8] = { /* 1 Hz */
8a0795d9
JD		 203 10, 15, 23, 30, 38, 47, 61, 94
204};
205static const int adm1027_freq_map[8] = { /* 1 Hz */
206 11, 15, 22, 29, 35, 44, 59, 88
1f44809a
JD		 207};
208
8a0795d9 209static int FREQ_TO_REG(const int *map, int freq)
1da177e4
LT		 210{
211 int i;
212
86010c98 213 /* Find the closest match */
1f44809a 214 for (i = 0; i < 7; ++i)
8a0795d9 215 if (freq <= (map[i] + map[i + 1]) / 2)
1f44809a 216 break;
e89e22b2 217 return i;
1da177e4 218}
8a0795d9
JD		 219
220static int FREQ_FROM_REG(const int *map, u8 reg)
221{
222 return map[reg & 0x07];
223}
1da177e4
LT		 224
225/* Since we can't use strings, I'm abusing these numbers
226 * to stand in for the following meanings:
227 * 1 -- PWM responds to Zone 1
228 * 2 -- PWM responds to Zone 2
229 * 3 -- PWM responds to Zone 3
230 * 23 -- PWM responds to the higher temp of Zone 2 or 3
231 * 123 -- PWM responds to highest of Zone 1, 2, or 3
232 * 0 -- PWM is always at 0% (ie, off)
233 * -1 -- PWM is always at 100%
234 * -2 -- PWM responds to manual control
235 */
236
e89e22b2
JD		 237static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
238#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
1da177e4 239
1f44809a 240static int ZONE_TO_REG(int zone)
1da177e4
LT		 241{
242 int i;
243
1f44809a
JD		 244 for (i = 0; i <= 7; ++i)
245 if (zone == lm85_zone_map[i])
246 break;
247 if (i > 7) /* Not found. */
1da177e4 248 i = 3; /* Always 100% */
e89e22b2 249 return i << 5;
1da177e4
LT		 250}
251
1f44809a
JD		 252#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
253#define HYST_FROM_REG(val) ((val) * 1000)
1da177e4 254
1da177e4
LT		 255/* Chip sampling rates
256 *
257 * Some sensors are not updated more frequently than once per second
258 * so it doesn't make sense to read them more often than that.
259 * We cache the results and return the saved data if the driver
260 * is called again before a second has elapsed.
261 *
262 * Also, there is significant configuration data for this chip
263 * given the automatic PWM fan control that is possible. There
264 * are about 47 bytes of config data to only 22 bytes of actual
265 * readings. So, we keep the config data up to date in the cache
266 * when it is written and only sample it once every 1 *minute*
267 */
268#define LM85_DATA_INTERVAL (HZ + HZ / 2)
269#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
270
1da177e4
LT		 271/* LM85 can automatically adjust fan speeds based on temperature
272 * This structure encapsulates an entire Zone config. There are
273 * three zones (one for each temperature input) on the lm85
274 */
275struct lm85_zone {
276 s8 limit; /* Low temp limit */
277 u8 hyst; /* Low limit hysteresis. (0-15) */
278 u8 range; /* Temp range, encoded */
279 s8 critical; /* "All fans ON" temp limit */
1f44809a 280 u8 off_desired; /* Actual "off" temperature specified. Preserved
1da177e4
LT		 281 * to prevent "drift" as other autofan control
282 * values change.
283 */
1f44809a 284 u8 max_desired; /* Actual "max" temperature specified. Preserved
1da177e4
LT		 285 * to prevent "drift" as other autofan control
286 * values change.
287 */
288};
289
290struct lm85_autofan {
291 u8 config; /* Register value */
1da177e4
LT		 292 u8 min_pwm; /* Minimum PWM value, encoded */
293 u8 min_off; /* Min PWM or OFF below "limit", flag */
294};
295
ed6bafbf
JD		 296/* For each registered chip, we need to keep some data in memory.
297 The structure is dynamically allocated. */
1da177e4 298struct lm85_data {
1beeffe4 299 struct device *hwmon_dev;
8a0795d9 300 const int *freq_map;
1da177e4
LT		 301 enum chips type;
302
9a61bf63 303 struct mutex update_lock;
1da177e4
LT		 304 int valid; /* !=0 if following fields are valid */
305 unsigned long last_reading; /* In jiffies */
306 unsigned long last_config; /* In jiffies */
307
308 u8 in[8]; /* Register value */
309 u8 in_max[8]; /* Register value */
310 u8 in_min[8]; /* Register value */
311 s8 temp[3]; /* Register value */
312 s8 temp_min[3]; /* Register value */
313 s8 temp_max[3]; /* Register value */
1da177e4
LT		 314 u16 fan[4]; /* Register value */
315 u16 fan_min[4]; /* Register value */
316 u8 pwm[3]; /* Register value */
34e7dc6c 317 u8 pwm_freq[3]; /* Register encoding */
1da177e4
LT		 318 u8 temp_ext[3]; /* Decoded values */
319 u8 in_ext[8]; /* Decoded values */
1da177e4
LT		 320 u8 vid; /* Register value */
321 u8 vrm; /* VRM version */
1da177e4 322 u32 alarms; /* Register encoding, combined */
79b92f2b 323 u8 cfg5; /* Config Register 5 on ADT7468 */
1da177e4
LT		 324 struct lm85_autofan autofan[3];
325 struct lm85_zone zone[3];
326};
327
310ec792 328static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info);
67712d01
JD		 329static int lm85_probe(struct i2c_client *client,
330 const struct i2c_device_id *id);
331static int lm85_remove(struct i2c_client *client);
1da177e4 332
f6c27fc1 333static int lm85_read_value(struct i2c_client *client, u8 reg);
e89e22b2 334static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
1da177e4 335static struct lm85_data *lm85_update_device(struct device *dev);
1da177e4
LT		 336
337
67712d01
JD		 338static const struct i2c_device_id lm85_id[] = {
339 { "adm1027", adm1027 },
340 { "adt7463", adt7463 },
c15ade65 341 { "adt7468", adt7468 },
67712d01
JD		 342 { "lm85", any_chip },
343 { "lm85b", lm85b },
344 { "lm85c", lm85c },
345 { "emc6d100", emc6d100 },
346 { "emc6d101", emc6d100 },
347 { "emc6d102", emc6d102 },
348 { }
349};
350MODULE_DEVICE_TABLE(i2c, lm85_id);
351
1da177e4 352static struct i2c_driver lm85_driver = {
67712d01 353 .class = I2C_CLASS_HWMON,
cdaf7934 354 .driver = {
cdaf7934
LR		 355 .name = "lm85",
356 },
67712d01
JD		 357 .probe = lm85_probe,
358 .remove = lm85_remove,
359 .id_table = lm85_id,
360 .detect = lm85_detect,
c3813d6a 361 .address_list = normal_i2c,
1da177e4
LT		 362};
363
364
365/* 4 Fans */
b353a487
JD		 366static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
367 char *buf)
1da177e4 368{
b353a487 369 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 370 struct lm85_data *data = lm85_update_device(dev);
1f44809a 371 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
1da177e4 372}
b353a487
JD		 373
374static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
375 char *buf)
1da177e4 376{
b353a487 377 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 378 struct lm85_data *data = lm85_update_device(dev);
1f44809a 379 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
1da177e4 380}
b353a487
JD		 381
382static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
383 const char *buf, size_t count)
1da177e4 384{
b353a487 385 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 386 struct i2c_client *client = to_i2c_client(dev);
387 struct lm85_data *data = i2c_get_clientdata(client);
63f281a6 388 unsigned long val = simple_strtoul(buf, NULL, 10);
1da177e4 389
9a61bf63 390 mutex_lock(&data->update_lock);
1da177e4
LT		 391 data->fan_min[nr] = FAN_TO_REG(val);
392 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
9a61bf63 393 mutex_unlock(&data->update_lock);
1da177e4
LT		 394 return count;
395}
396
397#define show_fan_offset(offset) \
b353a487
JD		 398static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
399 show_fan, NULL, offset - 1); \
400static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
401 show_fan_min, set_fan_min, offset - 1)
1da177e4
LT		 402
403show_fan_offset(1);
404show_fan_offset(2);
405show_fan_offset(3);
406show_fan_offset(4);
407
408/* vid, vrm, alarms */
409
1f44809a
JD		 410static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
411 char *buf)
1da177e4
LT		 412{
413 struct lm85_data *data = lm85_update_device(dev);
9c516ef4
JD		 414 int vid;
415
8ef1f029
DW		 416 if ((data->type == adt7463 || data->type == adt7468) &&
417 (data->vid & 0x80)) {
9c516ef4
JD		 418 /* 6-pin VID (VRM 10) */
419 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
420 } else {
421 /* 5-pin VID (VRM 9) */
422 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
423 }
424
425 return sprintf(buf, "%d\n", vid);
1da177e4
LT		 426}
427
428static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
429
1f44809a
JD		 430static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
431 char *buf)
1da177e4 432{
90d6619a 433 struct lm85_data *data = dev_get_drvdata(dev);
1da177e4
LT		 434 return sprintf(buf, "%ld\n", (long) data->vrm);
435}
436
1f44809a
JD		 437static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
438 const char *buf, size_t count)
1da177e4 439{
8f74efe8
JD		 440 struct lm85_data *data = dev_get_drvdata(dev);
441 data->vrm = simple_strtoul(buf, NULL, 10);
1da177e4
LT		 442 return count;
443}
444
445static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
446
1f44809a
JD		 447static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
448 *attr, char *buf)
1da177e4
LT		 449{
450 struct lm85_data *data = lm85_update_device(dev);
68188ba7 451 return sprintf(buf, "%u\n", data->alarms);
1da177e4
LT		 452}
453
454static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
455
bf76e9d3
JD		 456static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
457 char *buf)
458{
459 int nr = to_sensor_dev_attr(attr)->index;
460 struct lm85_data *data = lm85_update_device(dev);
461 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
462}
463
464static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
465static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
466static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
467static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
468static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
469static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
470static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
471static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
472static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
473static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
474static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
475static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
476static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
477static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
478static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
479static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
480static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
481
1da177e4
LT		 482/* pwm */
483
b353a487
JD		 484static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
485 char *buf)
1da177e4 486{
b353a487 487 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 488 struct lm85_data *data = lm85_update_device(dev);
1f44809a 489 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
1da177e4 490}
b353a487
JD		 491
492static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
493 const char *buf, size_t count)
1da177e4 494{
b353a487 495 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 496 struct i2c_client *client = to_i2c_client(dev);
497 struct lm85_data *data = i2c_get_clientdata(client);
498 long val = simple_strtol(buf, NULL, 10);
499
9a61bf63 500 mutex_lock(&data->update_lock);
1da177e4
LT		 501 data->pwm[nr] = PWM_TO_REG(val);
502 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
9a61bf63 503 mutex_unlock(&data->update_lock);
1da177e4
LT		 504 return count;
505}
b353a487
JD		 506
507static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
508 *attr, char *buf)
1da177e4 509{
b353a487 510 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 511 struct lm85_data *data = lm85_update_device(dev);
4b4df95d 512 int pwm_zone, enable;
1da177e4
LT		 513
514 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
4b4df95d
JD		 515 switch (pwm_zone) {
516 case -1: /* PWM is always at 100% */
517 enable = 0;
518 break;
519 case 0: /* PWM is always at 0% */
520 case -2: /* PWM responds to manual control */
521 enable = 1;
522 break;
523 default: /* PWM in automatic mode */
524 enable = 2;
525 }
526 return sprintf(buf, "%d\n", enable);
1da177e4
LT		 527}
528
455f791e
JD		 529static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
530 *attr, const char *buf, size_t count)
531{
532 int nr = to_sensor_dev_attr(attr)->index;
533 struct i2c_client *client = to_i2c_client(dev);
534 struct lm85_data *data = i2c_get_clientdata(client);
535 long val = simple_strtol(buf, NULL, 10);
536 u8 config;
537
538 switch (val) {
539 case 0:
540 config = 3;
541 break;
542 case 1:
543 config = 7;
544 break;
545 case 2:
546 /* Here we have to choose arbitrarily one of the 5 possible
547 configurations; I go for the safest */
548 config = 6;
549 break;
550 default:
551 return -EINVAL;
552 }
553
554 mutex_lock(&data->update_lock);
555 data->autofan[nr].config = lm85_read_value(client,
556 LM85_REG_AFAN_CONFIG(nr));
557 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
558 | (config << 5);
559 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
560 data->autofan[nr].config);
561 mutex_unlock(&data->update_lock);
562 return count;
563}
564
34e7dc6c
JD		 565static ssize_t show_pwm_freq(struct device *dev,
566 struct device_attribute *attr, char *buf)
567{
568 int nr = to_sensor_dev_attr(attr)->index;
569 struct lm85_data *data = lm85_update_device(dev);
8a0795d9
JD		 570 return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map,
571 data->pwm_freq[nr]));
34e7dc6c
JD		 572}
573
574static ssize_t set_pwm_freq(struct device *dev,
575 struct device_attribute *attr, const char *buf, size_t count)
576{
577 int nr = to_sensor_dev_attr(attr)->index;
578 struct i2c_client *client = to_i2c_client(dev);
579 struct lm85_data *data = i2c_get_clientdata(client);
580 long val = simple_strtol(buf, NULL, 10);
581
582 mutex_lock(&data->update_lock);
8a0795d9 583 data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
34e7dc6c
JD		 584 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
585 (data->zone[nr].range << 4)
586 | data->pwm_freq[nr]);
587 mutex_unlock(&data->update_lock);
588 return count;
589}
590
1da177e4 591#define show_pwm_reg(offset) \
b353a487
JD		 592static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
593 show_pwm, set_pwm, offset - 1); \
455f791e 594static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
34e7dc6c
JD		 595 show_pwm_enable, set_pwm_enable, offset - 1); \
596static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
597 show_pwm_freq, set_pwm_freq, offset - 1)
1da177e4
LT		 598
599show_pwm_reg(1);
600show_pwm_reg(2);
601show_pwm_reg(3);
602
603/* Voltages */
604
b353a487
JD		 605static ssize_t show_in(struct device *dev, struct device_attribute *attr,
606 char *buf)
1da177e4 607{
b353a487 608 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 609 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 610 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
611 data->in_ext[nr]));
1da177e4 612}
b353a487 613
1f44809a 614static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
b353a487 615 char *buf)
1da177e4 616{
b353a487 617 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 618 struct lm85_data *data = lm85_update_device(dev);
1f44809a 619 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
1da177e4 620}
b353a487
JD		 621
622static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
623 const char *buf, size_t count)
1da177e4 624{
b353a487 625 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 626 struct i2c_client *client = to_i2c_client(dev);
627 struct lm85_data *data = i2c_get_clientdata(client);
628 long val = simple_strtol(buf, NULL, 10);
629
9a61bf63 630 mutex_lock(&data->update_lock);
1da177e4
LT		 631 data->in_min[nr] = INS_TO_REG(nr, val);
632 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
9a61bf63 633 mutex_unlock(&data->update_lock);
1da177e4
LT		 634 return count;
635}
b353a487
JD		 636
637static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
638 char *buf)
1da177e4 639{
b353a487 640 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 641 struct lm85_data *data = lm85_update_device(dev);
1f44809a 642 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
1da177e4 643}
b353a487
JD		 644
645static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
646 const char *buf, size_t count)
1da177e4 647{
b353a487 648 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 649 struct i2c_client *client = to_i2c_client(dev);
650 struct lm85_data *data = i2c_get_clientdata(client);
651 long val = simple_strtol(buf, NULL, 10);
652
9a61bf63 653 mutex_lock(&data->update_lock);
1da177e4
LT		 654 data->in_max[nr] = INS_TO_REG(nr, val);
655 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
9a61bf63 656 mutex_unlock(&data->update_lock);
1da177e4
LT		 657 return count;
658}
b353a487 659
1da177e4 660#define show_in_reg(offset) \
b353a487
JD		 661static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
662 show_in, NULL, offset); \
663static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
664 show_in_min, set_in_min, offset); \
665static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
666 show_in_max, set_in_max, offset)
1da177e4
LT		 667
668show_in_reg(0);
669show_in_reg(1);
670show_in_reg(2);
671show_in_reg(3);
672show_in_reg(4);
6b9aad2d
JD		 673show_in_reg(5);
674show_in_reg(6);
675show_in_reg(7);
1da177e4
LT		 676
677/* Temps */
678
b353a487
JD		 679static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
680 char *buf)
1da177e4 681{
b353a487 682 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 683 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 684 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
685 data->temp_ext[nr]));
1da177e4 686}
b353a487
JD		 687
688static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
689 char *buf)
1da177e4 690{
b353a487 691 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 692 struct lm85_data *data = lm85_update_device(dev);
1f44809a 693 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
1da177e4 694}
b353a487
JD		 695
696static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
697 const char *buf, size_t count)
1da177e4 698{
b353a487 699 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 700 struct i2c_client *client = to_i2c_client(dev);
701 struct lm85_data *data = i2c_get_clientdata(client);
702 long val = simple_strtol(buf, NULL, 10);
703
79b92f2b
DW		 704 if (IS_ADT7468_OFF64(data))
705 val += 64;
706
9a61bf63 707 mutex_lock(&data->update_lock);
1da177e4
LT		 708 data->temp_min[nr] = TEMP_TO_REG(val);
709 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
9a61bf63 710 mutex_unlock(&data->update_lock);
1da177e4
LT		 711 return count;
712}
b353a487
JD		 713
714static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
715 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", TEMP_FROM_REG(data->temp_max[nr]));
1da177e4 720}
b353a487
JD		 721
722static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
723 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
79b92f2b
DW		 730 if (IS_ADT7468_OFF64(data))
731 val += 64;
732
9a61bf63 733 mutex_lock(&data->update_lock);
1da177e4
LT		 734 data->temp_max[nr] = TEMP_TO_REG(val);
735 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
9a61bf63 736 mutex_unlock(&data->update_lock);
1da177e4
LT		 737 return count;
738}
b353a487 739
1da177e4 740#define show_temp_reg(offset) \
b353a487
JD		 741static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
742 show_temp, NULL, offset - 1); \
743static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
744 show_temp_min, set_temp_min, offset - 1); \
745static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
746 show_temp_max, set_temp_max, offset - 1);
1da177e4
LT		 747
748show_temp_reg(1);
749show_temp_reg(2);
750show_temp_reg(3);
751
752
753/* Automatic PWM control */
754
b353a487
JD		 755static ssize_t show_pwm_auto_channels(struct device *dev,
756 struct device_attribute *attr, char *buf)
1da177e4 757{
b353a487 758 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 759 struct lm85_data *data = lm85_update_device(dev);
1f44809a 760 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
1da177e4 761}
b353a487
JD		 762
763static ssize_t set_pwm_auto_channels(struct device *dev,
764 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 765{
b353a487 766 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 767 struct i2c_client *client = to_i2c_client(dev);
768 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 769 long val = simple_strtol(buf, NULL, 10);
1da177e4 770
9a61bf63 771 mutex_lock(&data->update_lock);
1da177e4 772 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
1f44809a 773 | ZONE_TO_REG(val);
1da177e4
LT		 774 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
775 data->autofan[nr].config);
9a61bf63 776 mutex_unlock(&data->update_lock);
1da177e4
LT		 777 return count;
778}
b353a487
JD		 779
780static ssize_t show_pwm_auto_pwm_min(struct device *dev,
781 struct device_attribute *attr, char *buf)
1da177e4 782{
b353a487 783 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 784 struct lm85_data *data = lm85_update_device(dev);
1f44809a 785 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
1da177e4 786}
b353a487
JD		 787
788static ssize_t set_pwm_auto_pwm_min(struct device *dev,
789 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 790{
b353a487 791 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 792 struct i2c_client *client = to_i2c_client(dev);
793 struct lm85_data *data = i2c_get_clientdata(client);
794 long val = simple_strtol(buf, NULL, 10);
795
9a61bf63 796 mutex_lock(&data->update_lock);
1da177e4
LT		 797 data->autofan[nr].min_pwm = PWM_TO_REG(val);
798 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
799 data->autofan[nr].min_pwm);
9a61bf63 800 mutex_unlock(&data->update_lock);
1da177e4
LT		 801 return count;
802}
b353a487
JD		 803
804static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
805 struct device_attribute *attr, char *buf)
1da177e4 806{
b353a487 807 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 808 struct lm85_data *data = lm85_update_device(dev);
1f44809a 809 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
1da177e4 810}
b353a487
JD		 811
812static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
813 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 814{
b353a487 815 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 816 struct i2c_client *client = to_i2c_client(dev);
817 struct lm85_data *data = i2c_get_clientdata(client);
818 long val = simple_strtol(buf, NULL, 10);
7133e56f 819 u8 tmp;
1da177e4 820
9a61bf63 821 mutex_lock(&data->update_lock);
1da177e4 822 data->autofan[nr].min_off = val;
7133e56f
JD		 823 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
824 tmp &= ~(0x20 << nr);
825 if (data->autofan[nr].min_off)
826 tmp |= 0x20 << nr;
827 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
9a61bf63 828 mutex_unlock(&data->update_lock);
1da177e4
LT		 829 return count;
830}
b353a487 831
1da177e4 832#define pwm_auto(offset) \
b353a487
JD		 833static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
834 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
835 set_pwm_auto_channels, offset - 1); \
836static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
837 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
838 set_pwm_auto_pwm_min, offset - 1); \
839static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
840 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
34e7dc6c 841 set_pwm_auto_pwm_minctl, offset - 1)
b353a487 842
1da177e4
LT		 843pwm_auto(1);
844pwm_auto(2);
845pwm_auto(3);
846
847/* Temperature settings for automatic PWM control */
848
b353a487
JD		 849static ssize_t show_temp_auto_temp_off(struct device *dev,
850 struct device_attribute *attr, char *buf)
1da177e4 851{
b353a487 852 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 853 struct lm85_data *data = lm85_update_device(dev);
1f44809a 854 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
1da177e4
LT		 855 HYST_FROM_REG(data->zone[nr].hyst));
856}
b353a487
JD		 857
858static ssize_t set_temp_auto_temp_off(struct device *dev,
859 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 860{
b353a487 861 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 862 struct i2c_client *client = to_i2c_client(dev);
863 struct lm85_data *data = i2c_get_clientdata(client);
864 int min;
865 long val = simple_strtol(buf, NULL, 10);
866
9a61bf63 867 mutex_lock(&data->update_lock);
1da177e4
LT		 868 min = TEMP_FROM_REG(data->zone[nr].limit);
869 data->zone[nr].off_desired = TEMP_TO_REG(val);
870 data->zone[nr].hyst = HYST_TO_REG(min - val);
1f44809a 871 if (nr == 0 || nr == 1) {
1da177e4
LT		 872 lm85_write_value(client, LM85_REG_AFAN_HYST1,
873 (data->zone[0].hyst << 4)
1f44809a 874 | data->zone[1].hyst);
1da177e4
LT		 875 } else {
876 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 877 (data->zone[2].hyst << 4));
1da177e4 878 }
9a61bf63 879 mutex_unlock(&data->update_lock);
1da177e4
LT		 880 return count;
881}
b353a487
JD		 882
883static ssize_t show_temp_auto_temp_min(struct device *dev,
884 struct device_attribute *attr, char *buf)
1da177e4 885{
b353a487 886 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 887 struct lm85_data *data = lm85_update_device(dev);
1f44809a 888 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
1da177e4 889}
b353a487
JD		 890
891static ssize_t set_temp_auto_temp_min(struct device *dev,
892 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 893{
b353a487 894 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 895 struct i2c_client *client = to_i2c_client(dev);
896 struct lm85_data *data = i2c_get_clientdata(client);
897 long val = simple_strtol(buf, NULL, 10);
898
9a61bf63 899 mutex_lock(&data->update_lock);
1da177e4
LT		 900 data->zone[nr].limit = TEMP_TO_REG(val);
901 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
902 data->zone[nr].limit);
903
904/* Update temp_auto_max and temp_auto_range */
905 data->zone[nr].range = RANGE_TO_REG(
906 TEMP_FROM_REG(data->zone[nr].max_desired) -
907 TEMP_FROM_REG(data->zone[nr].limit));
908 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
909 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 910 | (data->pwm_freq[nr] & 0x07));
1da177e4
LT		 911
912/* Update temp_auto_hyst and temp_auto_off */
913 data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
914 data->zone[nr].limit) - TEMP_FROM_REG(
915 data->zone[nr].off_desired));
1f44809a 916 if (nr == 0 || nr == 1) {
1da177e4
LT		 917 lm85_write_value(client, LM85_REG_AFAN_HYST1,
918 (data->zone[0].hyst << 4)
1f44809a 919 | data->zone[1].hyst);
1da177e4
LT		 920 } else {
921 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 922 (data->zone[2].hyst << 4));
1da177e4 923 }
9a61bf63 924 mutex_unlock(&data->update_lock);
1da177e4
LT		 925 return count;
926}
b353a487
JD		 927
928static ssize_t show_temp_auto_temp_max(struct device *dev,
929 struct device_attribute *attr, char *buf)
1da177e4 930{
b353a487 931 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 932 struct lm85_data *data = lm85_update_device(dev);
1f44809a 933 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
1da177e4
LT		 934 RANGE_FROM_REG(data->zone[nr].range));
935}
b353a487
JD		 936
937static ssize_t set_temp_auto_temp_max(struct device *dev,
938 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 939{
b353a487 940 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 941 struct i2c_client *client = to_i2c_client(dev);
942 struct lm85_data *data = i2c_get_clientdata(client);
943 int min;
944 long val = simple_strtol(buf, NULL, 10);
945
9a61bf63 946 mutex_lock(&data->update_lock);
1da177e4
LT		 947 min = TEMP_FROM_REG(data->zone[nr].limit);
948 data->zone[nr].max_desired = TEMP_TO_REG(val);
949 data->zone[nr].range = RANGE_TO_REG(
950 val - min);
951 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
952 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 953 | (data->pwm_freq[nr] & 0x07));
9a61bf63 954 mutex_unlock(&data->update_lock);
1da177e4
LT		 955 return count;
956}
b353a487
JD		 957
958static ssize_t show_temp_auto_temp_crit(struct device *dev,
959 struct device_attribute *attr, char *buf)
1da177e4 960{
b353a487 961 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 962 struct lm85_data *data = lm85_update_device(dev);
1f44809a 963 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
1da177e4 964}
b353a487
JD		 965
966static ssize_t set_temp_auto_temp_crit(struct device *dev,
1f44809a 967 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 968{
b353a487 969 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 970 struct i2c_client *client = to_i2c_client(dev);
971 struct lm85_data *data = i2c_get_clientdata(client);
972 long val = simple_strtol(buf, NULL, 10);
973
9a61bf63 974 mutex_lock(&data->update_lock);
1da177e4
LT		 975 data->zone[nr].critical = TEMP_TO_REG(val);
976 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
977 data->zone[nr].critical);
9a61bf63 978 mutex_unlock(&data->update_lock);
1da177e4
LT		 979 return count;
980}
b353a487 981
1da177e4 982#define temp_auto(offset) \
b353a487
JD		 983static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
984 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
985 set_temp_auto_temp_off, offset - 1); \
986static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
987 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
988 set_temp_auto_temp_min, offset - 1); \
989static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
990 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
991 set_temp_auto_temp_max, offset - 1); \
992static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
993 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
994 set_temp_auto_temp_crit, offset - 1);
995
1da177e4
LT		 996temp_auto(1);
997temp_auto(2);
998temp_auto(3);
999
0501a381 1000static struct attribute *lm85_attributes[] = {
b353a487
JD		 1001 &sensor_dev_attr_fan1_input.dev_attr.attr,
1002 &sensor_dev_attr_fan2_input.dev_attr.attr,
1003 &sensor_dev_attr_fan3_input.dev_attr.attr,
1004 &sensor_dev_attr_fan4_input.dev_attr.attr,
1005 &sensor_dev_attr_fan1_min.dev_attr.attr,
1006 &sensor_dev_attr_fan2_min.dev_attr.attr,
1007 &sensor_dev_attr_fan3_min.dev_attr.attr,
1008 &sensor_dev_attr_fan4_min.dev_attr.attr,
bf76e9d3
JD		 1009 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1010 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1011 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1012 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
b353a487
JD		 1013
1014 &sensor_dev_attr_pwm1.dev_attr.attr,
1015 &sensor_dev_attr_pwm2.dev_attr.attr,
1016 &sensor_dev_attr_pwm3.dev_attr.attr,
1017 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1018 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1019 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
34e7dc6c
JD		 1020 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1021 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1022 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
b353a487
JD		 1023
1024 &sensor_dev_attr_in0_input.dev_attr.attr,
1025 &sensor_dev_attr_in1_input.dev_attr.attr,
1026 &sensor_dev_attr_in2_input.dev_attr.attr,
1027 &sensor_dev_attr_in3_input.dev_attr.attr,
1028 &sensor_dev_attr_in0_min.dev_attr.attr,
1029 &sensor_dev_attr_in1_min.dev_attr.attr,
1030 &sensor_dev_attr_in2_min.dev_attr.attr,
1031 &sensor_dev_attr_in3_min.dev_attr.attr,
1032 &sensor_dev_attr_in0_max.dev_attr.attr,
1033 &sensor_dev_attr_in1_max.dev_attr.attr,
1034 &sensor_dev_attr_in2_max.dev_attr.attr,
1035 &sensor_dev_attr_in3_max.dev_attr.attr,
bf76e9d3
JD		 1036 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1037 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1038 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1039 &sensor_dev_attr_in3_alarm.dev_attr.attr,
b353a487
JD		 1040
1041 &sensor_dev_attr_temp1_input.dev_attr.attr,
1042 &sensor_dev_attr_temp2_input.dev_attr.attr,
1043 &sensor_dev_attr_temp3_input.dev_attr.attr,
1044 &sensor_dev_attr_temp1_min.dev_attr.attr,
1045 &sensor_dev_attr_temp2_min.dev_attr.attr,
1046 &sensor_dev_attr_temp3_min.dev_attr.attr,
1047 &sensor_dev_attr_temp1_max.dev_attr.attr,
1048 &sensor_dev_attr_temp2_max.dev_attr.attr,
1049 &sensor_dev_attr_temp3_max.dev_attr.attr,
bf76e9d3
JD		 1050 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1051 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1052 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1053 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1054 &sensor_dev_attr_temp3_fault.dev_attr.attr,
b353a487
JD		 1055
1056 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1057 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1058 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1059 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1060 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1061 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1062 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1063 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1064 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
b353a487
JD		 1065
1066 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1067 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1068 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1069 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1070 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1071 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1072 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1073 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1074 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1075 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1076 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1077 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1078
0501a381
MH		 1079 &dev_attr_vrm.attr,
1080 &dev_attr_cpu0_vid.attr,
1081 &dev_attr_alarms.attr,
0501a381
MH		 1082 NULL
1083};
1084
1085static const struct attribute_group lm85_group = {
1086 .attrs = lm85_attributes,
1087};
1088
6b9aad2d 1089static struct attribute *lm85_attributes_in4[] = {
b353a487
JD		 1090 &sensor_dev_attr_in4_input.dev_attr.attr,
1091 &sensor_dev_attr_in4_min.dev_attr.attr,
1092 &sensor_dev_attr_in4_max.dev_attr.attr,
bf76e9d3 1093 &sensor_dev_attr_in4_alarm.dev_attr.attr,
0501a381
MH		 1094 NULL
1095};
1096
6b9aad2d
JD		 1097static const struct attribute_group lm85_group_in4 = {
1098 .attrs = lm85_attributes_in4,
1099};
1100
1101static struct attribute *lm85_attributes_in567[] = {
1102 &sensor_dev_attr_in5_input.dev_attr.attr,
1103 &sensor_dev_attr_in6_input.dev_attr.attr,
1104 &sensor_dev_attr_in7_input.dev_attr.attr,
1105 &sensor_dev_attr_in5_min.dev_attr.attr,
1106 &sensor_dev_attr_in6_min.dev_attr.attr,
1107 &sensor_dev_attr_in7_min.dev_attr.attr,
1108 &sensor_dev_attr_in5_max.dev_attr.attr,
1109 &sensor_dev_attr_in6_max.dev_attr.attr,
1110 &sensor_dev_attr_in7_max.dev_attr.attr,
bf76e9d3
JD		 1111 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1112 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1113 &sensor_dev_attr_in7_alarm.dev_attr.attr,
6b9aad2d
JD		 1114 NULL
1115};
1116
1117static const struct attribute_group lm85_group_in567 = {
1118 .attrs = lm85_attributes_in567,
0501a381
MH		 1119};
1120
5f447594
JD		 1121static void lm85_init_client(struct i2c_client *client)
1122{
1123 int value;
1124
1125 /* Start monitoring if needed */
1126 value = lm85_read_value(client, LM85_REG_CONFIG);
1127 if (!(value & 0x01)) {
1128 dev_info(&client->dev, "Starting monitoring\n");
1129 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1130 }
1131
1132 /* Warn about unusual configuration bits */
1133 if (value & 0x02)
1134 dev_warn(&client->dev, "Device configuration is locked\n");
1135 if (!(value & 0x04))
1136 dev_warn(&client->dev, "Device is not ready\n");
1137}
1138
5cfaf338
JD		 1139static int lm85_is_fake(struct i2c_client *client)
1140{
1141 /*
1142 * Differenciate between real LM96000 and Winbond WPCD377I. The latter
1143 * emulate the former except that it has no hardware monitoring function
1144 * so the readings are always 0.
1145 */
1146 int i;
1147 u8 in_temp, fan;
1148
1149 for (i = 0; i < 8; i++) {
1150 in_temp = i2c_smbus_read_byte_data(client, 0x20 + i);
1151 fan = i2c_smbus_read_byte_data(client, 0x28 + i);
1152 if (in_temp != 0x00 || fan != 0xff)
1153 return 0;
1154 }
1155
1156 return 1;
1157}
1158
67712d01 1159/* Return 0 if detection is successful, -ENODEV otherwise */
310ec792 1160static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
1da177e4 1161{
67712d01
JD		 1162 struct i2c_adapter *adapter = client->adapter;
1163 int address = client->addr;
e89e22b2 1164 const char *type_name;
d42a2eb5 1165 int company, verstep;
1da177e4 1166
e89e22b2 1167 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1da177e4 1168 /* We need to be able to do byte I/O */
67712d01 1169 return -ENODEV;
1f44809a 1170 }
1da177e4 1171
d42a2eb5
JD		 1172 /* Determine the chip type */
1173 company = lm85_read_value(client, LM85_REG_COMPANY);
1174 verstep = lm85_read_value(client, LM85_REG_VERSTEP);
1175
1176 dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
1177 "COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1178 address, company, verstep);
1179
1180 /* All supported chips have the version in common */
1181 if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC &&
1182 (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) {
1183 dev_dbg(&adapter->dev,
1184 "Autodetection failed: unsupported version\n");
1185 return -ENODEV;
1186 }
1187 type_name = "lm85";
1188
1189 /* Now, refine the detection */
1190 if (company == LM85_COMPANY_NATIONAL) {
1191 switch (verstep) {
1192 case LM85_VERSTEP_LM85C:
1193 type_name = "lm85c";
1194 break;
1195 case LM85_VERSTEP_LM85B:
1196 type_name = "lm85b";
1197 break;
1198 case LM85_VERSTEP_LM96000_1:
1199 case LM85_VERSTEP_LM96000_2:
1200 /* Check for Winbond WPCD377I */
1201 if (lm85_is_fake(client)) {
1202 dev_dbg(&adapter->dev,
1203 "Found Winbond WPCD377I, ignoring\n");
1204 return -ENODEV;
69fc1feb 1205 }
d42a2eb5
JD		 1206 break;
1207 }
1208 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1209 switch (verstep) {
1210 case LM85_VERSTEP_ADM1027:
1211 type_name = "adm1027";
1212 break;
1213 case LM85_VERSTEP_ADT7463:
1214 case LM85_VERSTEP_ADT7463C:
1215 type_name = "adt7463";
1216 break;
1217 case LM85_VERSTEP_ADT7468_1:
1218 case LM85_VERSTEP_ADT7468_2:
1219 type_name = "adt7468";
1220 break;
1da177e4 1221 }
d42a2eb5
JD		 1222 } else if (company == LM85_COMPANY_SMSC) {
1223 switch (verstep) {
1224 case LM85_VERSTEP_EMC6D100_A0:
1225 case LM85_VERSTEP_EMC6D100_A1:
1226 /* Note: we can't tell a '100 from a '101 */
1227 type_name = "emc6d100";
1228 break;
1229 case LM85_VERSTEP_EMC6D102:
1230 type_name = "emc6d102";
1231 break;
1232 }
1233 } else {
1234 dev_dbg(&adapter->dev,
1235 "Autodetection failed: unknown vendor\n");
1236 return -ENODEV;
1da177e4
LT		 1237 }
1238
67712d01
JD		 1239 strlcpy(info->type, type_name, I2C_NAME_SIZE);
1240
1241 return 0;
1242}
1da177e4 1243
67712d01
JD		 1244static int lm85_probe(struct i2c_client *client,
1245 const struct i2c_device_id *id)
1246{
1247 struct lm85_data *data;
1248 int err;
1249
1250 data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL);
1251 if (!data)
1252 return -ENOMEM;
1253
1254 i2c_set_clientdata(client, data);
1255 data->type = id->driver_data;
9a61bf63 1256 mutex_init(&data->update_lock);
1da177e4 1257
67712d01
JD		 1258 /* Fill in the chip specific driver values */
1259 switch (data->type) {
1260 case adm1027:
1261 case adt7463:
fa7a5797 1262 case adt7468:
67712d01
JD		 1263 case emc6d100:
1264 case emc6d102:
1265 data->freq_map = adm1027_freq_map;
1266 break;
1267 default:
1268 data->freq_map = lm85_freq_map;
1269 }
1da177e4
LT		 1270
1271 /* Set the VRM version */
303760b4 1272 data->vrm = vid_which_vrm();
1da177e4
LT		 1273
1274 /* Initialize the LM85 chip */
e89e22b2 1275 lm85_init_client(client);
1da177e4
LT		 1276
1277 /* Register sysfs hooks */
e89e22b2
JD		 1278 err = sysfs_create_group(&client->dev.kobj, &lm85_group);
1279 if (err)
f908037a 1280 goto err_kfree;
1da177e4 1281
79b92f2b 1282 /* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
9c516ef4 1283 as a sixth digital VID input rather than an analog input. */
e89e22b2 1284 data->vid = lm85_read_value(client, LM85_REG_VID);
79b92f2b
DW		 1285 if (!((data->type == adt7463 || data->type == adt7468) &&
1286 (data->vid & 0x80)))
e89e22b2 1287 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1288 &lm85_group_in4)))
f908037a 1289 goto err_remove_files;
6b9aad2d
JD		 1290
1291 /* The EMC6D100 has 3 additional voltage inputs */
67712d01 1292 if (data->type == emc6d100)
e89e22b2 1293 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1294 &lm85_group_in567)))
f908037a 1295 goto err_remove_files;
0501a381 1296
e89e22b2 1297 data->hwmon_dev = hwmon_device_register(&client->dev);
1beeffe4
TJ		 1298 if (IS_ERR(data->hwmon_dev)) {
1299 err = PTR_ERR(data->hwmon_dev);
f908037a 1300 goto err_remove_files;
9c516ef4
JD		 1301 }
1302
1da177e4
LT		 1303 return 0;
1304
1305 /* Error out and cleanup code */
f908037a 1306 err_remove_files:
e89e22b2
JD		 1307 sysfs_remove_group(&client->dev.kobj, &lm85_group);
1308 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
67712d01 1309 if (data->type == emc6d100)
e89e22b2 1310 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
f908037a 1311 err_kfree:
1da177e4 1312 kfree(data);
1da177e4
LT		 1313 return err;
1314}
1315
67712d01 1316static int lm85_remove(struct i2c_client *client)
1da177e4 1317{
943b0830 1318 struct lm85_data *data = i2c_get_clientdata(client);
1beeffe4 1319 hwmon_device_unregister(data->hwmon_dev);
0501a381 1320 sysfs_remove_group(&client->dev.kobj, &lm85_group);
6b9aad2d
JD		 1321 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1322 if (data->type == emc6d100)
1323 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
943b0830 1324 kfree(data);
1da177e4
LT		 1325 return 0;
1326}
1327
1328
d8d20615 1329static int lm85_read_value(struct i2c_client *client, u8 reg)
1da177e4
LT		 1330{
1331 int res;
1332
1333 /* What size location is it? */
1f44809a
JD		 1334 switch (reg) {
1335 case LM85_REG_FAN(0): /* Read WORD data */
1336 case LM85_REG_FAN(1):
1337 case LM85_REG_FAN(2):
1338 case LM85_REG_FAN(3):
1339 case LM85_REG_FAN_MIN(0):
1340 case LM85_REG_FAN_MIN(1):
1341 case LM85_REG_FAN_MIN(2):
1342 case LM85_REG_FAN_MIN(3):
1343 case LM85_REG_ALARM1: /* Read both bytes at once */
1344 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
1345 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
1346 break;
1da177e4
LT		 1347 default: /* Read BYTE data */
1348 res = i2c_smbus_read_byte_data(client, reg);
1f44809a 1349 break;
1da177e4
LT		 1350 }
1351
1f44809a 1352 return res;
1da177e4
LT		 1353}
1354
e89e22b2 1355static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
1da177e4 1356{
1f44809a
JD		 1357 switch (reg) {
1358 case LM85_REG_FAN(0): /* Write WORD data */
1359 case LM85_REG_FAN(1):
1360 case LM85_REG_FAN(2):
1361 case LM85_REG_FAN(3):
1362 case LM85_REG_FAN_MIN(0):
1363 case LM85_REG_FAN_MIN(1):
1364 case LM85_REG_FAN_MIN(2):
1365 case LM85_REG_FAN_MIN(3):
1da177e4 1366 /* NOTE: ALARM is read only, so not included here */
e89e22b2
JD		 1367 i2c_smbus_write_byte_data(client, reg, value & 0xff);
1368 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
1f44809a 1369 break;
1da177e4 1370 default: /* Write BYTE data */
e89e22b2 1371 i2c_smbus_write_byte_data(client, reg, value);
1f44809a 1372 break;
1da177e4 1373 }
1da177e4
LT		 1374}
1375
1da177e4
LT		 1376static struct lm85_data *lm85_update_device(struct device *dev)
1377{
1378 struct i2c_client *client = to_i2c_client(dev);
1379 struct lm85_data *data = i2c_get_clientdata(client);
1380 int i;
1381
9a61bf63 1382 mutex_lock(&data->update_lock);
1da177e4 1383
1f44809a
JD		 1384 if (!data->valid ||
1385 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
1da177e4
LT		 1386 /* Things that change quickly */
1387 dev_dbg(&client->dev, "Reading sensor values\n");
1f44809a 1388
1da177e4
LT		 1389 /* Have to read extended bits first to "freeze" the
1390 * more significant bits that are read later.
5a4d3ef3
JD		 1391 * There are 2 additional resolution bits per channel and we
1392 * have room for 4, so we shift them to the left.
1da177e4 1393 */
79b92f2b
DW		 1394 if (data->type == adm1027 || data->type == adt7463 ||
1395 data->type == adt7468) {
1da177e4
LT		 1396 int ext1 = lm85_read_value(client,
1397 ADM1027_REG_EXTEND_ADC1);
1398 int ext2 = lm85_read_value(client,
1399 ADM1027_REG_EXTEND_ADC2);
1400 int val = (ext1 << 8) + ext2;
1401
1f44809a
JD		 1402 for (i = 0; i <= 4; i++)
1403 data->in_ext[i] =
1404 ((val >> (i * 2)) & 0x03) << 2;
1da177e4 1405
1f44809a
JD		 1406 for (i = 0; i <= 2; i++)
1407 data->temp_ext[i] =
1408 (val >> ((i + 4) * 2)) & 0x0c;
1da177e4
LT		 1409 }
1410
9c516ef4
JD		 1411 data->vid = lm85_read_value(client, LM85_REG_VID);
1412
1413 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1414 data->in[i] =
1415 lm85_read_value(client, LM85_REG_IN(i));
e89e22b2
JD		 1416 data->fan[i] =
1417 lm85_read_value(client, LM85_REG_FAN(i));
1da177e4
LT		 1418 }
1419
79b92f2b
DW		 1420 if (!((data->type == adt7463 || data->type == adt7468) &&
1421 (data->vid & 0x80))) {
9c516ef4
JD		 1422 data->in[4] = lm85_read_value(client,
1423 LM85_REG_IN(4));
1424 }
1425
79b92f2b
DW		 1426 if (data->type == adt7468)
1427 data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
1428
1da177e4
LT		 1429 for (i = 0; i <= 2; ++i) {
1430 data->temp[i] =
1431 lm85_read_value(client, LM85_REG_TEMP(i));
1da177e4
LT		 1432 data->pwm[i] =
1433 lm85_read_value(client, LM85_REG_PWM(i));
79b92f2b
DW		 1434
1435 if (IS_ADT7468_OFF64(data))
1436 data->temp[i] -= 64;
1da177e4
LT		 1437 }
1438
1439 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1440
dd1ac538 1441 if (data->type == emc6d100) {
1da177e4
LT		 1442 /* Three more voltage sensors */
1443 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1444 data->in[i] = lm85_read_value(client,
1445 EMC6D100_REG_IN(i));
1da177e4
LT		 1446 }
1447 /* More alarm bits */
1f44809a
JD		 1448 data->alarms |= lm85_read_value(client,
1449 EMC6D100_REG_ALARM3) << 16;
1450 } else if (data->type == emc6d102) {
1da177e4
LT		 1451 /* Have to read LSB bits after the MSB ones because
1452 the reading of the MSB bits has frozen the
1453 LSBs (backward from the ADM1027).
1454 */
1455 int ext1 = lm85_read_value(client,
1456 EMC6D102_REG_EXTEND_ADC1);
1457 int ext2 = lm85_read_value(client,
1458 EMC6D102_REG_EXTEND_ADC2);
1459 int ext3 = lm85_read_value(client,
1460 EMC6D102_REG_EXTEND_ADC3);
1461 int ext4 = lm85_read_value(client,
1462 EMC6D102_REG_EXTEND_ADC4);
1463 data->in_ext[0] = ext3 & 0x0f;
1464 data->in_ext[1] = ext4 & 0x0f;
e89e22b2
JD		 1465 data->in_ext[2] = ext4 >> 4;
1466 data->in_ext[3] = ext3 >> 4;
1467 data->in_ext[4] = ext2 >> 4;
1da177e4
LT		 1468
1469 data->temp_ext[0] = ext1 & 0x0f;
1470 data->temp_ext[1] = ext2 & 0x0f;
e89e22b2 1471 data->temp_ext[2] = ext1 >> 4;
1da177e4
LT		 1472 }
1473
1f44809a
JD		 1474 data->last_reading = jiffies;
1475 } /* last_reading */
1da177e4 1476
1f44809a
JD		 1477 if (!data->valid ||
1478 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
1da177e4
LT		 1479 /* Things that don't change often */
1480 dev_dbg(&client->dev, "Reading config values\n");
1481
9c516ef4 1482 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1483 data->in_min[i] =
1484 lm85_read_value(client, LM85_REG_IN_MIN(i));
1485 data->in_max[i] =
1486 lm85_read_value(client, LM85_REG_IN_MAX(i));
e89e22b2
JD		 1487 data->fan_min[i] =
1488 lm85_read_value(client, LM85_REG_FAN_MIN(i));
1da177e4
LT		 1489 }
1490
79b92f2b
DW		 1491 if (!((data->type == adt7463 || data->type == adt7468) &&
1492 (data->vid & 0x80))) {
9c516ef4
JD		 1493 data->in_min[4] = lm85_read_value(client,
1494 LM85_REG_IN_MIN(4));
1495 data->in_max[4] = lm85_read_value(client,
1496 LM85_REG_IN_MAX(4));
1497 }
1498
1f44809a 1499 if (data->type == emc6d100) {
1da177e4 1500 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1501 data->in_min[i] = lm85_read_value(client,
1502 EMC6D100_REG_IN_MIN(i));
1503 data->in_max[i] = lm85_read_value(client,
1504 EMC6D100_REG_IN_MAX(i));
1da177e4
LT		 1505 }
1506 }
1507
1da177e4 1508 for (i = 0; i <= 2; ++i) {
e89e22b2
JD		 1509 int val;
1510
1da177e4
LT		 1511 data->temp_min[i] =
1512 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1513 data->temp_max[i] =
1514 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1da177e4 1515
1da177e4
LT		 1516 data->autofan[i].config =
1517 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1518 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
34e7dc6c 1519 data->pwm_freq[i] = val & 0x07;
e89e22b2 1520 data->zone[i].range = val >> 4;
1da177e4
LT		 1521 data->autofan[i].min_pwm =
1522 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1523 data->zone[i].limit =
1524 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1525 data->zone[i].critical =
1526 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
79b92f2b
DW		 1527
1528 if (IS_ADT7468_OFF64(data)) {
1529 data->temp_min[i] -= 64;
1530 data->temp_max[i] -= 64;
1531 data->zone[i].limit -= 64;
1532 data->zone[i].critical -= 64;
1533 }
1da177e4
LT		 1534 }
1535
1536 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1f44809a
JD		 1537 data->autofan[0].min_off = (i & 0x20) != 0;
1538 data->autofan[1].min_off = (i & 0x40) != 0;
1539 data->autofan[2].min_off = (i & 0x80) != 0;
1da177e4
LT		 1540
1541 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
e89e22b2 1542 data->zone[0].hyst = i >> 4;
1f44809a 1543 data->zone[1].hyst = i & 0x0f;
1da177e4
LT		 1544
1545 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
e89e22b2 1546 data->zone[2].hyst = i >> 4;
1da177e4 1547
1da177e4 1548 data->last_config = jiffies;
1f44809a 1549 } /* last_config */
1da177e4
LT		 1550
1551 data->valid = 1;
1552
9a61bf63 1553 mutex_unlock(&data->update_lock);
1da177e4
LT		 1554
1555 return data;
1556}
1557
1558
1559static int __init sm_lm85_init(void)
1560{
1561 return i2c_add_driver(&lm85_driver);
1562}
1563
1f44809a 1564static void __exit sm_lm85_exit(void)
1da177e4
LT		 1565{
1566 i2c_del_driver(&lm85_driver);
1567}
1568
1da177e4 1569MODULE_LICENSE("GPL");
1f44809a
JD		 1570MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1571 "Margit Schubert-While <margitsw@t-online.de>, "
e89e22b2 1572 "Justin Thiessen <jthiessen@penguincomputing.com>");
1da177e4
LT		 1573MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1574
1575module_init(sm_lm85_init);
1576module_exit(sm_lm85_exit);
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