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Fix common misspellings
[linux-2.6-block.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,
06923f84 44 emc6d100, emc6d102, emc6d103, emc6d103s
e5e9f44c 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
f6c61cff
JD		 67#define ADT7468_OFF64 (1 << 0)
68#define ADT7468_HFPWM (1 << 1)
79b92f2b
DW		 69#define IS_ADT7468_OFF64(data) \
70 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
f6c61cff
JD		 71#define IS_ADT7468_HFPWM(data) \
72 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM))
79b92f2b 73
1da177e4 74/* These are the recognized values for the above regs */
1da177e4
LT		 75#define LM85_COMPANY_NATIONAL 0x01
76#define LM85_COMPANY_ANALOG_DEV 0x41
1f44809a 77#define LM85_COMPANY_SMSC 0x5c
1da177e4
LT		 78#define LM85_VERSTEP_VMASK 0xf0
79#define LM85_VERSTEP_GENERIC 0x60
c15ade65 80#define LM85_VERSTEP_GENERIC2 0x70
1da177e4
LT		 81#define LM85_VERSTEP_LM85C 0x60
82#define LM85_VERSTEP_LM85B 0x62
5cfaf338
JD		 83#define LM85_VERSTEP_LM96000_1 0x68
84#define LM85_VERSTEP_LM96000_2 0x69
1da177e4
LT		 85#define LM85_VERSTEP_ADM1027 0x60
86#define LM85_VERSTEP_ADT7463 0x62
87#define LM85_VERSTEP_ADT7463C 0x6A
79b92f2b
DW		 88#define LM85_VERSTEP_ADT7468_1 0x71
89#define LM85_VERSTEP_ADT7468_2 0x72
1da177e4
LT		 90#define LM85_VERSTEP_EMC6D100_A0 0x60
91#define LM85_VERSTEP_EMC6D100_A1 0x61
92#define LM85_VERSTEP_EMC6D102 0x65
f065a93e
JB		 93#define LM85_VERSTEP_EMC6D103_A0 0x68
94#define LM85_VERSTEP_EMC6D103_A1 0x69
95#define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */
1da177e4
LT		 96
97#define LM85_REG_CONFIG 0x40
98
99#define LM85_REG_ALARM1 0x41
100#define LM85_REG_ALARM2 0x42
101
102#define LM85_REG_VID 0x43
103
104/* Automated FAN control */
105#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
106#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
107#define LM85_REG_AFAN_SPIKE1 0x62
1da177e4
LT		 108#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
109#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
110#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
111#define LM85_REG_AFAN_HYST1 0x6d
112#define LM85_REG_AFAN_HYST2 0x6e
113
1da177e4
LT		 114#define ADM1027_REG_EXTEND_ADC1 0x76
115#define ADM1027_REG_EXTEND_ADC2 0x77
1da177e4
LT		 116
117#define EMC6D100_REG_ALARM3 0x7d
118/* IN5, IN6 and IN7 */
1f44809a
JD		 119#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
120#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
121#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
1da177e4
LT		 122#define EMC6D102_REG_EXTEND_ADC1 0x85
123#define EMC6D102_REG_EXTEND_ADC2 0x86
124#define EMC6D102_REG_EXTEND_ADC3 0x87
125#define EMC6D102_REG_EXTEND_ADC4 0x88
126
1da177e4 127
1f44809a 128/* Conversions. Rounding and limit checking is only done on the TO_REG
1da177e4
LT		 129 variants. Note that you should be a bit careful with which arguments
130 these macros are called: arguments may be evaluated more than once.
131 */
132
25985edc 133/* IN are scaled according to built-in resistors */
e89e22b2 134static const int lm85_scaling[] = { /* .001 Volts */
1f44809a
JD		 135 2500, 2250, 3300, 5000, 12000,
136 3300, 1500, 1800 /*EMC6D100*/
137};
138#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
1da177e4 139
1f44809a
JD		 140#define INS_TO_REG(n, val) \
141 SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
1da177e4 142
1f44809a 143#define INSEXT_FROM_REG(n, val, ext) \
5a4d3ef3 144 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
1da177e4 145
1f44809a 146#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
1da177e4
LT		 147
148/* FAN speed is measured using 90kHz clock */
63f281a6
JD		 149static inline u16 FAN_TO_REG(unsigned long val)
150{
151 if (!val)
152 return 0xffff;
153 return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
154}
1f44809a
JD		 155#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
156 5400000 / (val))
1da177e4
LT		 157
158/* Temperature is reported in .001 degC increments */
159#define TEMP_TO_REG(val) \
1f44809a
JD		 160 SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
161#define TEMPEXT_FROM_REG(val, ext) \
5a4d3ef3
JD		 162 SCALE(((val) << 4) + (ext), 16, 1000)
163#define TEMP_FROM_REG(val) ((val) * 1000)
1da177e4 164
1f44809a 165#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
1da177e4
LT		 166#define PWM_FROM_REG(val) (val)
167
168
169/* ZONEs have the following parameters:
170 * Limit (low) temp, 1. degC
171 * Hysteresis (below limit), 1. degC (0-15)
172 * Range of speed control, .1 degC (2-80)
173 * Critical (high) temp, 1. degC
174 *
175 * FAN PWMs have the following parameters:
176 * Reference Zone, 1, 2, 3, etc.
177 * Spinup time, .05 sec
178 * PWM value at limit/low temp, 1 count
179 * PWM Frequency, 1. Hz
180 * PWM is Min or OFF below limit, flag
181 * Invert PWM output, flag
182 *
183 * Some chips filter the temp, others the fan.
184 * Filter constant (or disabled) .1 seconds
185 */
186
187/* These are the zone temperature range encodings in .001 degree C */
e89e22b2 188static const int lm85_range_map[] = {
1f44809a
JD		 189 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
190 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
191};
192
193static int RANGE_TO_REG(int range)
1da177e4
LT		 194{
195 int i;
196
d38b1497 197 /* Find the closest match */
1b92adad
JD		 198 for (i = 0; i < 15; ++i) {
199 if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2)
200 break;
1da177e4 201 }
d38b1497 202
1b92adad 203 return i;
1da177e4 204}
1f44809a 205#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
1da177e4 206
1da177e4 207/* These are the PWM frequency encodings */
34e7dc6c 208static const int lm85_freq_map[8] = { /* 1 Hz */
8a0795d9
JD		 209 10, 15, 23, 30, 38, 47, 61, 94
210};
211static const int adm1027_freq_map[8] = { /* 1 Hz */
212 11, 15, 22, 29, 35, 44, 59, 88
1f44809a
JD		 213};
214
8a0795d9 215static int FREQ_TO_REG(const int *map, int freq)
1da177e4
LT		 216{
217 int i;
218
86010c98 219 /* Find the closest match */
1f44809a 220 for (i = 0; i < 7; ++i)
8a0795d9 221 if (freq <= (map[i] + map[i + 1]) / 2)
1f44809a 222 break;
e89e22b2 223 return i;
1da177e4 224}
8a0795d9
JD		 225
226static int FREQ_FROM_REG(const int *map, u8 reg)
227{
228 return map[reg & 0x07];
229}
1da177e4
LT		 230
231/* Since we can't use strings, I'm abusing these numbers
232 * to stand in for the following meanings:
233 * 1 -- PWM responds to Zone 1
234 * 2 -- PWM responds to Zone 2
235 * 3 -- PWM responds to Zone 3
236 * 23 -- PWM responds to the higher temp of Zone 2 or 3
237 * 123 -- PWM responds to highest of Zone 1, 2, or 3
238 * 0 -- PWM is always at 0% (ie, off)
239 * -1 -- PWM is always at 100%
240 * -2 -- PWM responds to manual control
241 */
242
e89e22b2
JD		 243static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
244#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
1da177e4 245
1f44809a 246static int ZONE_TO_REG(int zone)
1da177e4
LT		 247{
248 int i;
249
1f44809a
JD		 250 for (i = 0; i <= 7; ++i)
251 if (zone == lm85_zone_map[i])
252 break;
253 if (i > 7) /* Not found. */
1da177e4 254 i = 3; /* Always 100% */
e89e22b2 255 return i << 5;
1da177e4
LT		 256}
257
1f44809a
JD		 258#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
259#define HYST_FROM_REG(val) ((val) * 1000)
1da177e4 260
1da177e4
LT		 261/* Chip sampling rates
262 *
263 * Some sensors are not updated more frequently than once per second
264 * so it doesn't make sense to read them more often than that.
265 * We cache the results and return the saved data if the driver
266 * is called again before a second has elapsed.
267 *
268 * Also, there is significant configuration data for this chip
269 * given the automatic PWM fan control that is possible. There
270 * are about 47 bytes of config data to only 22 bytes of actual
271 * readings. So, we keep the config data up to date in the cache
272 * when it is written and only sample it once every 1 *minute*
273 */
274#define LM85_DATA_INTERVAL (HZ + HZ / 2)
275#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
276
1da177e4
LT		 277/* LM85 can automatically adjust fan speeds based on temperature
278 * This structure encapsulates an entire Zone config. There are
279 * three zones (one for each temperature input) on the lm85
280 */
281struct lm85_zone {
282 s8 limit; /* Low temp limit */
283 u8 hyst; /* Low limit hysteresis. (0-15) */
284 u8 range; /* Temp range, encoded */
285 s8 critical; /* "All fans ON" temp limit */
1f44809a 286 u8 max_desired; /* Actual "max" temperature specified. Preserved
1da177e4
LT		 287 * to prevent "drift" as other autofan control
288 * values change.
289 */
290};
291
292struct lm85_autofan {
293 u8 config; /* Register value */
1da177e4
LT		 294 u8 min_pwm; /* Minimum PWM value, encoded */
295 u8 min_off; /* Min PWM or OFF below "limit", flag */
296};
297
ed6bafbf
JD		 298/* For each registered chip, we need to keep some data in memory.
299 The structure is dynamically allocated. */
1da177e4 300struct lm85_data {
1beeffe4 301 struct device *hwmon_dev;
8a0795d9 302 const int *freq_map;
1da177e4
LT		 303 enum chips type;
304
de248805
GR		 305 bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */
306
9a61bf63 307 struct mutex update_lock;
1da177e4
LT		 308 int valid; /* !=0 if following fields are valid */
309 unsigned long last_reading; /* In jiffies */
310 unsigned long last_config; /* In jiffies */
311
312 u8 in[8]; /* Register value */
313 u8 in_max[8]; /* Register value */
314 u8 in_min[8]; /* Register value */
315 s8 temp[3]; /* Register value */
316 s8 temp_min[3]; /* Register value */
317 s8 temp_max[3]; /* Register value */
1da177e4
LT		 318 u16 fan[4]; /* Register value */
319 u16 fan_min[4]; /* Register value */
320 u8 pwm[3]; /* Register value */
34e7dc6c 321 u8 pwm_freq[3]; /* Register encoding */
1da177e4
LT		 322 u8 temp_ext[3]; /* Decoded values */
323 u8 in_ext[8]; /* Decoded values */
1da177e4
LT		 324 u8 vid; /* Register value */
325 u8 vrm; /* VRM version */
1da177e4 326 u32 alarms; /* Register encoding, combined */
79b92f2b 327 u8 cfg5; /* Config Register 5 on ADT7468 */
1da177e4
LT		 328 struct lm85_autofan autofan[3];
329 struct lm85_zone zone[3];
330};
331
310ec792 332static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info);
67712d01
JD		 333static int lm85_probe(struct i2c_client *client,
334 const struct i2c_device_id *id);
335static int lm85_remove(struct i2c_client *client);
1da177e4 336
f6c27fc1 337static int lm85_read_value(struct i2c_client *client, u8 reg);
e89e22b2 338static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
1da177e4 339static struct lm85_data *lm85_update_device(struct device *dev);
1da177e4
LT		 340
341
67712d01
JD		 342static const struct i2c_device_id lm85_id[] = {
343 { "adm1027", adm1027 },
344 { "adt7463", adt7463 },
c15ade65 345 { "adt7468", adt7468 },
67712d01
JD		 346 { "lm85", any_chip },
347 { "lm85b", lm85b },
348 { "lm85c", lm85c },
349 { "emc6d100", emc6d100 },
350 { "emc6d101", emc6d100 },
351 { "emc6d102", emc6d102 },
f065a93e 352 { "emc6d103", emc6d103 },
06923f84 353 { "emc6d103s", emc6d103s },
67712d01
JD		 354 { }
355};
356MODULE_DEVICE_TABLE(i2c, lm85_id);
357
1da177e4 358static struct i2c_driver lm85_driver = {
67712d01 359 .class = I2C_CLASS_HWMON,
cdaf7934 360 .driver = {
cdaf7934
LR		 361 .name = "lm85",
362 },
67712d01
JD		 363 .probe = lm85_probe,
364 .remove = lm85_remove,
365 .id_table = lm85_id,
366 .detect = lm85_detect,
c3813d6a 367 .address_list = normal_i2c,
1da177e4
LT		 368};
369
370
371/* 4 Fans */
b353a487
JD		 372static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
373 char *buf)
1da177e4 374{
b353a487 375 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 376 struct lm85_data *data = lm85_update_device(dev);
1f44809a 377 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
1da177e4 378}
b353a487
JD		 379
380static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
381 char *buf)
1da177e4 382{
b353a487 383 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 384 struct lm85_data *data = lm85_update_device(dev);
1f44809a 385 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
1da177e4 386}
b353a487
JD		 387
388static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
389 const char *buf, size_t count)
1da177e4 390{
b353a487 391 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 392 struct i2c_client *client = to_i2c_client(dev);
393 struct lm85_data *data = i2c_get_clientdata(client);
63f281a6 394 unsigned long val = simple_strtoul(buf, NULL, 10);
1da177e4 395
9a61bf63 396 mutex_lock(&data->update_lock);
1da177e4
LT		 397 data->fan_min[nr] = FAN_TO_REG(val);
398 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
9a61bf63 399 mutex_unlock(&data->update_lock);
1da177e4
LT		 400 return count;
401}
402
403#define show_fan_offset(offset) \
b353a487
JD		 404static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
405 show_fan, NULL, offset - 1); \
406static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
407 show_fan_min, set_fan_min, offset - 1)
1da177e4
LT		 408
409show_fan_offset(1);
410show_fan_offset(2);
411show_fan_offset(3);
412show_fan_offset(4);
413
414/* vid, vrm, alarms */
415
1f44809a
JD		 416static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
417 char *buf)
1da177e4
LT		 418{
419 struct lm85_data *data = lm85_update_device(dev);
9c516ef4
JD		 420 int vid;
421
de248805 422 if (data->has_vid5) {
9c516ef4
JD		 423 /* 6-pin VID (VRM 10) */
424 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
425 } else {
426 /* 5-pin VID (VRM 9) */
427 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
428 }
429
430 return sprintf(buf, "%d\n", vid);
1da177e4
LT		 431}
432
433static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
434
1f44809a
JD		 435static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
436 char *buf)
1da177e4 437{
90d6619a 438 struct lm85_data *data = dev_get_drvdata(dev);
1da177e4
LT		 439 return sprintf(buf, "%ld\n", (long) data->vrm);
440}
441
1f44809a
JD		 442static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
443 const char *buf, size_t count)
1da177e4 444{
8f74efe8
JD		 445 struct lm85_data *data = dev_get_drvdata(dev);
446 data->vrm = simple_strtoul(buf, NULL, 10);
1da177e4
LT		 447 return count;
448}
449
450static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
451
1f44809a
JD		 452static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
453 *attr, char *buf)
1da177e4
LT		 454{
455 struct lm85_data *data = lm85_update_device(dev);
68188ba7 456 return sprintf(buf, "%u\n", data->alarms);
1da177e4
LT		 457}
458
459static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
460
bf76e9d3
JD		 461static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
462 char *buf)
463{
464 int nr = to_sensor_dev_attr(attr)->index;
465 struct lm85_data *data = lm85_update_device(dev);
466 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
467}
468
469static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
470static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
471static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
472static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
473static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
474static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
475static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
476static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
477static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
478static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
479static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
480static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
481static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
482static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
483static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
484static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
485static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
486
1da177e4
LT		 487/* pwm */
488
b353a487
JD		 489static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
490 char *buf)
1da177e4 491{
b353a487 492 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 493 struct lm85_data *data = lm85_update_device(dev);
1f44809a 494 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
1da177e4 495}
b353a487
JD		 496
497static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
498 const char *buf, size_t count)
1da177e4 499{
b353a487 500 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 501 struct i2c_client *client = to_i2c_client(dev);
502 struct lm85_data *data = i2c_get_clientdata(client);
503 long val = simple_strtol(buf, NULL, 10);
504
9a61bf63 505 mutex_lock(&data->update_lock);
1da177e4
LT		 506 data->pwm[nr] = PWM_TO_REG(val);
507 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
9a61bf63 508 mutex_unlock(&data->update_lock);
1da177e4
LT		 509 return count;
510}
b353a487
JD		 511
512static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
513 *attr, char *buf)
1da177e4 514{
b353a487 515 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 516 struct lm85_data *data = lm85_update_device(dev);
4b4df95d 517 int pwm_zone, enable;
1da177e4
LT		 518
519 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
4b4df95d
JD		 520 switch (pwm_zone) {
521 case -1: /* PWM is always at 100% */
522 enable = 0;
523 break;
524 case 0: /* PWM is always at 0% */
525 case -2: /* PWM responds to manual control */
526 enable = 1;
527 break;
528 default: /* PWM in automatic mode */
529 enable = 2;
530 }
531 return sprintf(buf, "%d\n", enable);
1da177e4
LT		 532}
533
455f791e
JD		 534static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
535 *attr, const char *buf, size_t count)
536{
537 int nr = to_sensor_dev_attr(attr)->index;
538 struct i2c_client *client = to_i2c_client(dev);
539 struct lm85_data *data = i2c_get_clientdata(client);
540 long val = simple_strtol(buf, NULL, 10);
541 u8 config;
542
543 switch (val) {
544 case 0:
545 config = 3;
546 break;
547 case 1:
548 config = 7;
549 break;
550 case 2:
551 /* Here we have to choose arbitrarily one of the 5 possible
552 configurations; I go for the safest */
553 config = 6;
554 break;
555 default:
556 return -EINVAL;
557 }
558
559 mutex_lock(&data->update_lock);
560 data->autofan[nr].config = lm85_read_value(client,
561 LM85_REG_AFAN_CONFIG(nr));
562 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
563 | (config << 5);
564 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
565 data->autofan[nr].config);
566 mutex_unlock(&data->update_lock);
567 return count;
568}
569
34e7dc6c
JD		 570static ssize_t show_pwm_freq(struct device *dev,
571 struct device_attribute *attr, char *buf)
572{
573 int nr = to_sensor_dev_attr(attr)->index;
574 struct lm85_data *data = lm85_update_device(dev);
f6c61cff
JD		 575 int freq;
576
577 if (IS_ADT7468_HFPWM(data))
578 freq = 22500;
579 else
580 freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]);
581
582 return sprintf(buf, "%d\n", freq);
34e7dc6c
JD		 583}
584
585static ssize_t set_pwm_freq(struct device *dev,
586 struct device_attribute *attr, const char *buf, size_t count)
587{
588 int nr = to_sensor_dev_attr(attr)->index;
589 struct i2c_client *client = to_i2c_client(dev);
590 struct lm85_data *data = i2c_get_clientdata(client);
591 long val = simple_strtol(buf, NULL, 10);
592
593 mutex_lock(&data->update_lock);
f6c61cff
JD		 594 /* The ADT7468 has a special high-frequency PWM output mode,
595 * where all PWM outputs are driven by a 22.5 kHz clock.
596 * This might confuse the user, but there's not much we can do. */
597 if (data->type == adt7468 && val >= 11300) { /* High freq. mode */
598 data->cfg5 &= ~ADT7468_HFPWM;
599 lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
600 } else { /* Low freq. mode */
601 data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
602 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
603 (data->zone[nr].range << 4)
604 | data->pwm_freq[nr]);
605 if (data->type == adt7468) {
606 data->cfg5 |= ADT7468_HFPWM;
607 lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
608 }
609 }
34e7dc6c
JD		 610 mutex_unlock(&data->update_lock);
611 return count;
612}
613
1da177e4 614#define show_pwm_reg(offset) \
b353a487
JD		 615static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
616 show_pwm, set_pwm, offset - 1); \
455f791e 617static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
34e7dc6c
JD		 618 show_pwm_enable, set_pwm_enable, offset - 1); \
619static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
620 show_pwm_freq, set_pwm_freq, offset - 1)
1da177e4
LT		 621
622show_pwm_reg(1);
623show_pwm_reg(2);
624show_pwm_reg(3);
625
626/* Voltages */
627
b353a487
JD		 628static ssize_t show_in(struct device *dev, struct device_attribute *attr,
629 char *buf)
1da177e4 630{
b353a487 631 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 632 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 633 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
634 data->in_ext[nr]));
1da177e4 635}
b353a487 636
1f44809a 637static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
b353a487 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_min[nr]));
1da177e4 643}
b353a487
JD		 644
645static ssize_t set_in_min(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_min[nr] = INS_TO_REG(nr, val);
655 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
9a61bf63 656 mutex_unlock(&data->update_lock);
1da177e4
LT		 657 return count;
658}
b353a487
JD		 659
660static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
661 char *buf)
1da177e4 662{
b353a487 663 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 664 struct lm85_data *data = lm85_update_device(dev);
1f44809a 665 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
1da177e4 666}
b353a487
JD		 667
668static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
669 const char *buf, size_t count)
1da177e4 670{
b353a487 671 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 672 struct i2c_client *client = to_i2c_client(dev);
673 struct lm85_data *data = i2c_get_clientdata(client);
674 long val = simple_strtol(buf, NULL, 10);
675
9a61bf63 676 mutex_lock(&data->update_lock);
1da177e4
LT		 677 data->in_max[nr] = INS_TO_REG(nr, val);
678 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
9a61bf63 679 mutex_unlock(&data->update_lock);
1da177e4
LT		 680 return count;
681}
b353a487 682
1da177e4 683#define show_in_reg(offset) \
b353a487
JD		 684static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
685 show_in, NULL, offset); \
686static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
687 show_in_min, set_in_min, offset); \
688static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
689 show_in_max, set_in_max, offset)
1da177e4
LT		 690
691show_in_reg(0);
692show_in_reg(1);
693show_in_reg(2);
694show_in_reg(3);
695show_in_reg(4);
6b9aad2d
JD		 696show_in_reg(5);
697show_in_reg(6);
698show_in_reg(7);
1da177e4
LT		 699
700/* Temps */
701
b353a487
JD		 702static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
703 char *buf)
1da177e4 704{
b353a487 705 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 706 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 707 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
708 data->temp_ext[nr]));
1da177e4 709}
b353a487
JD		 710
711static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
712 char *buf)
1da177e4 713{
b353a487 714 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 715 struct lm85_data *data = lm85_update_device(dev);
1f44809a 716 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
1da177e4 717}
b353a487
JD		 718
719static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
720 const char *buf, size_t count)
1da177e4 721{
b353a487 722 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 723 struct i2c_client *client = to_i2c_client(dev);
724 struct lm85_data *data = i2c_get_clientdata(client);
725 long val = simple_strtol(buf, NULL, 10);
726
79b92f2b
DW		 727 if (IS_ADT7468_OFF64(data))
728 val += 64;
729
9a61bf63 730 mutex_lock(&data->update_lock);
1da177e4
LT		 731 data->temp_min[nr] = TEMP_TO_REG(val);
732 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
9a61bf63 733 mutex_unlock(&data->update_lock);
1da177e4
LT		 734 return count;
735}
b353a487
JD		 736
737static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
738 char *buf)
1da177e4 739{
b353a487 740 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 741 struct lm85_data *data = lm85_update_device(dev);
1f44809a 742 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1da177e4 743}
b353a487
JD		 744
745static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
746 const char *buf, size_t count)
1da177e4 747{
b353a487 748 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 749 struct i2c_client *client = to_i2c_client(dev);
750 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 751 long val = simple_strtol(buf, NULL, 10);
1da177e4 752
79b92f2b
DW		 753 if (IS_ADT7468_OFF64(data))
754 val += 64;
755
9a61bf63 756 mutex_lock(&data->update_lock);
1da177e4
LT		 757 data->temp_max[nr] = TEMP_TO_REG(val);
758 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
9a61bf63 759 mutex_unlock(&data->update_lock);
1da177e4
LT		 760 return count;
761}
b353a487 762
1da177e4 763#define show_temp_reg(offset) \
b353a487
JD		 764static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
765 show_temp, NULL, offset - 1); \
766static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
767 show_temp_min, set_temp_min, offset - 1); \
768static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
769 show_temp_max, set_temp_max, offset - 1);
1da177e4
LT		 770
771show_temp_reg(1);
772show_temp_reg(2);
773show_temp_reg(3);
774
775
776/* Automatic PWM control */
777
b353a487
JD		 778static ssize_t show_pwm_auto_channels(struct device *dev,
779 struct device_attribute *attr, char *buf)
1da177e4 780{
b353a487 781 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 782 struct lm85_data *data = lm85_update_device(dev);
1f44809a 783 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
1da177e4 784}
b353a487
JD		 785
786static ssize_t set_pwm_auto_channels(struct device *dev,
787 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 788{
b353a487 789 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 790 struct i2c_client *client = to_i2c_client(dev);
791 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 792 long val = simple_strtol(buf, NULL, 10);
1da177e4 793
9a61bf63 794 mutex_lock(&data->update_lock);
1da177e4 795 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
1f44809a 796 | ZONE_TO_REG(val);
1da177e4
LT		 797 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
798 data->autofan[nr].config);
9a61bf63 799 mutex_unlock(&data->update_lock);
1da177e4
LT		 800 return count;
801}
b353a487
JD		 802
803static ssize_t show_pwm_auto_pwm_min(struct device *dev,
804 struct device_attribute *attr, char *buf)
1da177e4 805{
b353a487 806 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 807 struct lm85_data *data = lm85_update_device(dev);
1f44809a 808 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
1da177e4 809}
b353a487
JD		 810
811static ssize_t set_pwm_auto_pwm_min(struct device *dev,
812 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 813{
b353a487 814 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 815 struct i2c_client *client = to_i2c_client(dev);
816 struct lm85_data *data = i2c_get_clientdata(client);
817 long val = simple_strtol(buf, NULL, 10);
818
9a61bf63 819 mutex_lock(&data->update_lock);
1da177e4
LT		 820 data->autofan[nr].min_pwm = PWM_TO_REG(val);
821 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
822 data->autofan[nr].min_pwm);
9a61bf63 823 mutex_unlock(&data->update_lock);
1da177e4
LT		 824 return count;
825}
b353a487
JD		 826
827static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
828 struct device_attribute *attr, char *buf)
1da177e4 829{
b353a487 830 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 831 struct lm85_data *data = lm85_update_device(dev);
1f44809a 832 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
1da177e4 833}
b353a487
JD		 834
835static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
836 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 837{
b353a487 838 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 839 struct i2c_client *client = to_i2c_client(dev);
840 struct lm85_data *data = i2c_get_clientdata(client);
841 long val = simple_strtol(buf, NULL, 10);
7133e56f 842 u8 tmp;
1da177e4 843
9a61bf63 844 mutex_lock(&data->update_lock);
1da177e4 845 data->autofan[nr].min_off = val;
7133e56f
JD		 846 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
847 tmp &= ~(0x20 << nr);
848 if (data->autofan[nr].min_off)
849 tmp |= 0x20 << nr;
850 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
9a61bf63 851 mutex_unlock(&data->update_lock);
1da177e4
LT		 852 return count;
853}
b353a487 854
1da177e4 855#define pwm_auto(offset) \
b353a487
JD		 856static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
857 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
858 set_pwm_auto_channels, offset - 1); \
859static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
860 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
861 set_pwm_auto_pwm_min, offset - 1); \
862static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
863 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
34e7dc6c 864 set_pwm_auto_pwm_minctl, offset - 1)
b353a487 865
1da177e4
LT		 866pwm_auto(1);
867pwm_auto(2);
868pwm_auto(3);
869
870/* Temperature settings for automatic PWM control */
871
b353a487
JD		 872static ssize_t show_temp_auto_temp_off(struct device *dev,
873 struct device_attribute *attr, char *buf)
1da177e4 874{
b353a487 875 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 876 struct lm85_data *data = lm85_update_device(dev);
1f44809a 877 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
1da177e4
LT		 878 HYST_FROM_REG(data->zone[nr].hyst));
879}
b353a487
JD		 880
881static ssize_t set_temp_auto_temp_off(struct device *dev,
882 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 883{
b353a487 884 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 885 struct i2c_client *client = to_i2c_client(dev);
886 struct lm85_data *data = i2c_get_clientdata(client);
887 int min;
888 long val = simple_strtol(buf, NULL, 10);
889
9a61bf63 890 mutex_lock(&data->update_lock);
1da177e4 891 min = TEMP_FROM_REG(data->zone[nr].limit);
1da177e4 892 data->zone[nr].hyst = HYST_TO_REG(min - val);
1f44809a 893 if (nr == 0 || nr == 1) {
1da177e4
LT		 894 lm85_write_value(client, LM85_REG_AFAN_HYST1,
895 (data->zone[0].hyst << 4)
1f44809a 896 | data->zone[1].hyst);
1da177e4
LT		 897 } else {
898 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 899 (data->zone[2].hyst << 4));
1da177e4 900 }
9a61bf63 901 mutex_unlock(&data->update_lock);
1da177e4
LT		 902 return count;
903}
b353a487
JD		 904
905static ssize_t show_temp_auto_temp_min(struct device *dev,
906 struct device_attribute *attr, char *buf)
1da177e4 907{
b353a487 908 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 909 struct lm85_data *data = lm85_update_device(dev);
1f44809a 910 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
1da177e4 911}
b353a487
JD		 912
913static ssize_t set_temp_auto_temp_min(struct device *dev,
914 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 915{
b353a487 916 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 917 struct i2c_client *client = to_i2c_client(dev);
918 struct lm85_data *data = i2c_get_clientdata(client);
919 long val = simple_strtol(buf, NULL, 10);
920
9a61bf63 921 mutex_lock(&data->update_lock);
1da177e4
LT		 922 data->zone[nr].limit = TEMP_TO_REG(val);
923 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
924 data->zone[nr].limit);
925
926/* Update temp_auto_max and temp_auto_range */
927 data->zone[nr].range = RANGE_TO_REG(
928 TEMP_FROM_REG(data->zone[nr].max_desired) -
929 TEMP_FROM_REG(data->zone[nr].limit));
930 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
931 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 932 | (data->pwm_freq[nr] & 0x07));
1da177e4 933
9a61bf63 934 mutex_unlock(&data->update_lock);
1da177e4
LT		 935 return count;
936}
b353a487
JD		 937
938static ssize_t show_temp_auto_temp_max(struct device *dev,
939 struct device_attribute *attr, char *buf)
1da177e4 940{
b353a487 941 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 942 struct lm85_data *data = lm85_update_device(dev);
1f44809a 943 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
1da177e4
LT		 944 RANGE_FROM_REG(data->zone[nr].range));
945}
b353a487
JD		 946
947static ssize_t set_temp_auto_temp_max(struct device *dev,
948 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 949{
b353a487 950 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 951 struct i2c_client *client = to_i2c_client(dev);
952 struct lm85_data *data = i2c_get_clientdata(client);
953 int min;
954 long val = simple_strtol(buf, NULL, 10);
955
9a61bf63 956 mutex_lock(&data->update_lock);
1da177e4
LT		 957 min = TEMP_FROM_REG(data->zone[nr].limit);
958 data->zone[nr].max_desired = TEMP_TO_REG(val);
959 data->zone[nr].range = RANGE_TO_REG(
960 val - min);
961 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
962 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 963 | (data->pwm_freq[nr] & 0x07));
9a61bf63 964 mutex_unlock(&data->update_lock);
1da177e4
LT		 965 return count;
966}
b353a487
JD		 967
968static ssize_t show_temp_auto_temp_crit(struct device *dev,
969 struct device_attribute *attr, char *buf)
1da177e4 970{
b353a487 971 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 972 struct lm85_data *data = lm85_update_device(dev);
1f44809a 973 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
1da177e4 974}
b353a487
JD		 975
976static ssize_t set_temp_auto_temp_crit(struct device *dev,
1f44809a 977 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 978{
b353a487 979 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 980 struct i2c_client *client = to_i2c_client(dev);
981 struct lm85_data *data = i2c_get_clientdata(client);
982 long val = simple_strtol(buf, NULL, 10);
983
9a61bf63 984 mutex_lock(&data->update_lock);
1da177e4
LT		 985 data->zone[nr].critical = TEMP_TO_REG(val);
986 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
987 data->zone[nr].critical);
9a61bf63 988 mutex_unlock(&data->update_lock);
1da177e4
LT		 989 return count;
990}
b353a487 991
1da177e4 992#define temp_auto(offset) \
b353a487
JD		 993static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
994 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
995 set_temp_auto_temp_off, offset - 1); \
996static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
997 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
998 set_temp_auto_temp_min, offset - 1); \
999static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
1000 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
1001 set_temp_auto_temp_max, offset - 1); \
1002static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
1003 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
1004 set_temp_auto_temp_crit, offset - 1);
1005
1da177e4
LT		 1006temp_auto(1);
1007temp_auto(2);
1008temp_auto(3);
1009
0501a381 1010static struct attribute *lm85_attributes[] = {
b353a487
JD		 1011 &sensor_dev_attr_fan1_input.dev_attr.attr,
1012 &sensor_dev_attr_fan2_input.dev_attr.attr,
1013 &sensor_dev_attr_fan3_input.dev_attr.attr,
1014 &sensor_dev_attr_fan4_input.dev_attr.attr,
1015 &sensor_dev_attr_fan1_min.dev_attr.attr,
1016 &sensor_dev_attr_fan2_min.dev_attr.attr,
1017 &sensor_dev_attr_fan3_min.dev_attr.attr,
1018 &sensor_dev_attr_fan4_min.dev_attr.attr,
bf76e9d3
JD		 1019 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1020 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1021 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1022 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
b353a487
JD		 1023
1024 &sensor_dev_attr_pwm1.dev_attr.attr,
1025 &sensor_dev_attr_pwm2.dev_attr.attr,
1026 &sensor_dev_attr_pwm3.dev_attr.attr,
1027 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1028 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1029 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
34e7dc6c
JD		 1030 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1031 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1032 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
b353a487
JD		 1033
1034 &sensor_dev_attr_in0_input.dev_attr.attr,
1035 &sensor_dev_attr_in1_input.dev_attr.attr,
1036 &sensor_dev_attr_in2_input.dev_attr.attr,
1037 &sensor_dev_attr_in3_input.dev_attr.attr,
1038 &sensor_dev_attr_in0_min.dev_attr.attr,
1039 &sensor_dev_attr_in1_min.dev_attr.attr,
1040 &sensor_dev_attr_in2_min.dev_attr.attr,
1041 &sensor_dev_attr_in3_min.dev_attr.attr,
1042 &sensor_dev_attr_in0_max.dev_attr.attr,
1043 &sensor_dev_attr_in1_max.dev_attr.attr,
1044 &sensor_dev_attr_in2_max.dev_attr.attr,
1045 &sensor_dev_attr_in3_max.dev_attr.attr,
bf76e9d3
JD		 1046 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1047 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1048 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1049 &sensor_dev_attr_in3_alarm.dev_attr.attr,
b353a487
JD		 1050
1051 &sensor_dev_attr_temp1_input.dev_attr.attr,
1052 &sensor_dev_attr_temp2_input.dev_attr.attr,
1053 &sensor_dev_attr_temp3_input.dev_attr.attr,
1054 &sensor_dev_attr_temp1_min.dev_attr.attr,
1055 &sensor_dev_attr_temp2_min.dev_attr.attr,
1056 &sensor_dev_attr_temp3_min.dev_attr.attr,
1057 &sensor_dev_attr_temp1_max.dev_attr.attr,
1058 &sensor_dev_attr_temp2_max.dev_attr.attr,
1059 &sensor_dev_attr_temp3_max.dev_attr.attr,
bf76e9d3
JD		 1060 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1061 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1062 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1063 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1064 &sensor_dev_attr_temp3_fault.dev_attr.attr,
b353a487
JD		 1065
1066 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1067 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1068 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1069 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1070 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1071 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
b353a487 1072
b353a487
JD		 1073 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1074 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1075 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1076 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1077 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1078 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1079 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1080 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1081 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1082
0501a381
MH		 1083 &dev_attr_vrm.attr,
1084 &dev_attr_cpu0_vid.attr,
1085 &dev_attr_alarms.attr,
0501a381
MH		 1086 NULL
1087};
1088
1089static const struct attribute_group lm85_group = {
1090 .attrs = lm85_attributes,
1091};
1092
06923f84
GR		 1093static struct attribute *lm85_attributes_minctl[] = {
1094 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1095 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1096 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
1097};
1098
1099static const struct attribute_group lm85_group_minctl = {
1100 .attrs = lm85_attributes_minctl,
1101};
1102
1103static struct attribute *lm85_attributes_temp_off[] = {
1104 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1105 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1106 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1107};
1108
1109static const struct attribute_group lm85_group_temp_off = {
1110 .attrs = lm85_attributes_temp_off,
1111};
1112
6b9aad2d 1113static struct attribute *lm85_attributes_in4[] = {
b353a487
JD		 1114 &sensor_dev_attr_in4_input.dev_attr.attr,
1115 &sensor_dev_attr_in4_min.dev_attr.attr,
1116 &sensor_dev_attr_in4_max.dev_attr.attr,
bf76e9d3 1117 &sensor_dev_attr_in4_alarm.dev_attr.attr,
0501a381
MH		 1118 NULL
1119};
1120
6b9aad2d
JD		 1121static const struct attribute_group lm85_group_in4 = {
1122 .attrs = lm85_attributes_in4,
1123};
1124
1125static struct attribute *lm85_attributes_in567[] = {
1126 &sensor_dev_attr_in5_input.dev_attr.attr,
1127 &sensor_dev_attr_in6_input.dev_attr.attr,
1128 &sensor_dev_attr_in7_input.dev_attr.attr,
1129 &sensor_dev_attr_in5_min.dev_attr.attr,
1130 &sensor_dev_attr_in6_min.dev_attr.attr,
1131 &sensor_dev_attr_in7_min.dev_attr.attr,
1132 &sensor_dev_attr_in5_max.dev_attr.attr,
1133 &sensor_dev_attr_in6_max.dev_attr.attr,
1134 &sensor_dev_attr_in7_max.dev_attr.attr,
bf76e9d3
JD		 1135 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1136 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1137 &sensor_dev_attr_in7_alarm.dev_attr.attr,
6b9aad2d
JD		 1138 NULL
1139};
1140
1141static const struct attribute_group lm85_group_in567 = {
1142 .attrs = lm85_attributes_in567,
0501a381
MH		 1143};
1144
5f447594
JD		 1145static void lm85_init_client(struct i2c_client *client)
1146{
1147 int value;
1148
1149 /* Start monitoring if needed */
1150 value = lm85_read_value(client, LM85_REG_CONFIG);
1151 if (!(value & 0x01)) {
1152 dev_info(&client->dev, "Starting monitoring\n");
1153 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1154 }
1155
1156 /* Warn about unusual configuration bits */
1157 if (value & 0x02)
1158 dev_warn(&client->dev, "Device configuration is locked\n");
1159 if (!(value & 0x04))
1160 dev_warn(&client->dev, "Device is not ready\n");
1161}
1162
5cfaf338
JD		 1163static int lm85_is_fake(struct i2c_client *client)
1164{
1165 /*
1166 * Differenciate between real LM96000 and Winbond WPCD377I. The latter
1167 * emulate the former except that it has no hardware monitoring function
1168 * so the readings are always 0.
1169 */
1170 int i;
1171 u8 in_temp, fan;
1172
1173 for (i = 0; i < 8; i++) {
1174 in_temp = i2c_smbus_read_byte_data(client, 0x20 + i);
1175 fan = i2c_smbus_read_byte_data(client, 0x28 + i);
1176 if (in_temp != 0x00 || fan != 0xff)
1177 return 0;
1178 }
1179
1180 return 1;
1181}
1182
67712d01 1183/* Return 0 if detection is successful, -ENODEV otherwise */
310ec792 1184static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
1da177e4 1185{
67712d01
JD		 1186 struct i2c_adapter *adapter = client->adapter;
1187 int address = client->addr;
e89e22b2 1188 const char *type_name;
d42a2eb5 1189 int company, verstep;
1da177e4 1190
e89e22b2 1191 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1da177e4 1192 /* We need to be able to do byte I/O */
67712d01 1193 return -ENODEV;
1f44809a 1194 }
1da177e4 1195
d42a2eb5
JD		 1196 /* Determine the chip type */
1197 company = lm85_read_value(client, LM85_REG_COMPANY);
1198 verstep = lm85_read_value(client, LM85_REG_VERSTEP);
1199
1200 dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
1201 "COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1202 address, company, verstep);
1203
1204 /* All supported chips have the version in common */
1205 if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC &&
1206 (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) {
1207 dev_dbg(&adapter->dev,
1208 "Autodetection failed: unsupported version\n");
1209 return -ENODEV;
1210 }
1211 type_name = "lm85";
1212
1213 /* Now, refine the detection */
1214 if (company == LM85_COMPANY_NATIONAL) {
1215 switch (verstep) {
1216 case LM85_VERSTEP_LM85C:
1217 type_name = "lm85c";
1218 break;
1219 case LM85_VERSTEP_LM85B:
1220 type_name = "lm85b";
1221 break;
1222 case LM85_VERSTEP_LM96000_1:
1223 case LM85_VERSTEP_LM96000_2:
1224 /* Check for Winbond WPCD377I */
1225 if (lm85_is_fake(client)) {
1226 dev_dbg(&adapter->dev,
1227 "Found Winbond WPCD377I, ignoring\n");
1228 return -ENODEV;
69fc1feb 1229 }
d42a2eb5
JD		 1230 break;
1231 }
1232 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1233 switch (verstep) {
1234 case LM85_VERSTEP_ADM1027:
1235 type_name = "adm1027";
1236 break;
1237 case LM85_VERSTEP_ADT7463:
1238 case LM85_VERSTEP_ADT7463C:
1239 type_name = "adt7463";
1240 break;
1241 case LM85_VERSTEP_ADT7468_1:
1242 case LM85_VERSTEP_ADT7468_2:
1243 type_name = "adt7468";
1244 break;
1da177e4 1245 }
d42a2eb5
JD		 1246 } else if (company == LM85_COMPANY_SMSC) {
1247 switch (verstep) {
1248 case LM85_VERSTEP_EMC6D100_A0:
1249 case LM85_VERSTEP_EMC6D100_A1:
1250 /* Note: we can't tell a '100 from a '101 */
1251 type_name = "emc6d100";
1252 break;
1253 case LM85_VERSTEP_EMC6D102:
1254 type_name = "emc6d102";
1255 break;
f065a93e
JB		 1256 case LM85_VERSTEP_EMC6D103_A0:
1257 case LM85_VERSTEP_EMC6D103_A1:
1258 type_name = "emc6d103";
1259 break;
f065a93e
JB		 1260 case LM85_VERSTEP_EMC6D103S:
1261 type_name = "emc6d103s";
1262 break;
d42a2eb5
JD		 1263 }
1264 } else {
1265 dev_dbg(&adapter->dev,
1266 "Autodetection failed: unknown vendor\n");
1267 return -ENODEV;
1da177e4
LT		 1268 }
1269
67712d01
JD		 1270 strlcpy(info->type, type_name, I2C_NAME_SIZE);
1271
1272 return 0;
1273}
1da177e4 1274
bc6db2b5
GR		 1275static void lm85_remove_files(struct i2c_client *client, struct lm85_data *data)
1276{
1277 sysfs_remove_group(&client->dev.kobj, &lm85_group);
06923f84
GR		 1278 if (data->type != emc6d103s) {
1279 sysfs_remove_group(&client->dev.kobj, &lm85_group_minctl);
1280 sysfs_remove_group(&client->dev.kobj, &lm85_group_temp_off);
1281 }
bc6db2b5
GR		 1282 if (!data->has_vid5)
1283 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1284 if (data->type == emc6d100)
1285 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1286}
1287
67712d01
JD		 1288static int lm85_probe(struct i2c_client *client,
1289 const struct i2c_device_id *id)
1290{
1291 struct lm85_data *data;
1292 int err;
1293
1294 data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL);
1295 if (!data)
1296 return -ENOMEM;
1297
1298 i2c_set_clientdata(client, data);
1299 data->type = id->driver_data;
9a61bf63 1300 mutex_init(&data->update_lock);
1da177e4 1301
67712d01
JD		 1302 /* Fill in the chip specific driver values */
1303 switch (data->type) {
1304 case adm1027:
1305 case adt7463:
fa7a5797 1306 case adt7468:
67712d01
JD		 1307 case emc6d100:
1308 case emc6d102:
f065a93e 1309 case emc6d103:
06923f84 1310 case emc6d103s:
67712d01
JD		 1311 data->freq_map = adm1027_freq_map;
1312 break;
1313 default:
1314 data->freq_map = lm85_freq_map;
1315 }
1da177e4
LT		 1316
1317 /* Set the VRM version */
303760b4 1318 data->vrm = vid_which_vrm();
1da177e4
LT		 1319
1320 /* Initialize the LM85 chip */
e89e22b2 1321 lm85_init_client(client);
1da177e4
LT		 1322
1323 /* Register sysfs hooks */
e89e22b2
JD		 1324 err = sysfs_create_group(&client->dev.kobj, &lm85_group);
1325 if (err)
f908037a 1326 goto err_kfree;
1da177e4 1327
06923f84
GR		 1328 /* minctl and temp_off exist on all chips except emc6d103s */
1329 if (data->type != emc6d103s) {
1330 err = sysfs_create_group(&client->dev.kobj, &lm85_group_minctl);
1331 if (err)
1332 goto err_kfree;
1333 err = sysfs_create_group(&client->dev.kobj,
1334 &lm85_group_temp_off);
1335 if (err)
1336 goto err_kfree;
1337 }
1338
79b92f2b 1339 /* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
9c516ef4 1340 as a sixth digital VID input rather than an analog input. */
de248805
GR		 1341 if (data->type == adt7463 || data->type == adt7468) {
1342 u8 vid = lm85_read_value(client, LM85_REG_VID);
1343 if (vid & 0x80)
1344 data->has_vid5 = true;
1345 }
1346
1347 if (!data->has_vid5)
e89e22b2 1348 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1349 &lm85_group_in4)))
f908037a 1350 goto err_remove_files;
6b9aad2d
JD		 1351
1352 /* The EMC6D100 has 3 additional voltage inputs */
67712d01 1353 if (data->type == emc6d100)
e89e22b2 1354 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1355 &lm85_group_in567)))
f908037a 1356 goto err_remove_files;
0501a381 1357
e89e22b2 1358 data->hwmon_dev = hwmon_device_register(&client->dev);
1beeffe4
TJ		 1359 if (IS_ERR(data->hwmon_dev)) {
1360 err = PTR_ERR(data->hwmon_dev);
f908037a 1361 goto err_remove_files;
9c516ef4
JD		 1362 }
1363
1da177e4
LT		 1364 return 0;
1365
1366 /* Error out and cleanup code */
f908037a 1367 err_remove_files:
bc6db2b5 1368 lm85_remove_files(client, data);
f908037a 1369 err_kfree:
1da177e4 1370 kfree(data);
1da177e4
LT		 1371 return err;
1372}
1373
67712d01 1374static int lm85_remove(struct i2c_client *client)
1da177e4 1375{
943b0830 1376 struct lm85_data *data = i2c_get_clientdata(client);
1beeffe4 1377 hwmon_device_unregister(data->hwmon_dev);
bc6db2b5 1378 lm85_remove_files(client, data);
943b0830 1379 kfree(data);
1da177e4
LT		 1380 return 0;
1381}
1382
1383
d8d20615 1384static int lm85_read_value(struct i2c_client *client, u8 reg)
1da177e4
LT		 1385{
1386 int res;
1387
1388 /* What size location is it? */
1f44809a
JD		 1389 switch (reg) {
1390 case LM85_REG_FAN(0): /* Read WORD data */
1391 case LM85_REG_FAN(1):
1392 case LM85_REG_FAN(2):
1393 case LM85_REG_FAN(3):
1394 case LM85_REG_FAN_MIN(0):
1395 case LM85_REG_FAN_MIN(1):
1396 case LM85_REG_FAN_MIN(2):
1397 case LM85_REG_FAN_MIN(3):
1398 case LM85_REG_ALARM1: /* Read both bytes at once */
1399 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
1400 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
1401 break;
1da177e4
LT		 1402 default: /* Read BYTE data */
1403 res = i2c_smbus_read_byte_data(client, reg);
1f44809a 1404 break;
1da177e4
LT		 1405 }
1406
1f44809a 1407 return res;
1da177e4
LT		 1408}
1409
e89e22b2 1410static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
1da177e4 1411{
1f44809a
JD		 1412 switch (reg) {
1413 case LM85_REG_FAN(0): /* Write WORD data */
1414 case LM85_REG_FAN(1):
1415 case LM85_REG_FAN(2):
1416 case LM85_REG_FAN(3):
1417 case LM85_REG_FAN_MIN(0):
1418 case LM85_REG_FAN_MIN(1):
1419 case LM85_REG_FAN_MIN(2):
1420 case LM85_REG_FAN_MIN(3):
1da177e4 1421 /* NOTE: ALARM is read only, so not included here */
e89e22b2
JD		 1422 i2c_smbus_write_byte_data(client, reg, value & 0xff);
1423 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
1f44809a 1424 break;
1da177e4 1425 default: /* Write BYTE data */
e89e22b2 1426 i2c_smbus_write_byte_data(client, reg, value);
1f44809a 1427 break;
1da177e4 1428 }
1da177e4
LT		 1429}
1430
1da177e4
LT		 1431static struct lm85_data *lm85_update_device(struct device *dev)
1432{
1433 struct i2c_client *client = to_i2c_client(dev);
1434 struct lm85_data *data = i2c_get_clientdata(client);
1435 int i;
1436
9a61bf63 1437 mutex_lock(&data->update_lock);
1da177e4 1438
1f44809a
JD		 1439 if (!data->valid ||
1440 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
1da177e4
LT		 1441 /* Things that change quickly */
1442 dev_dbg(&client->dev, "Reading sensor values\n");
1f44809a 1443
1da177e4
LT		 1444 /* Have to read extended bits first to "freeze" the
1445 * more significant bits that are read later.
5a4d3ef3
JD		 1446 * There are 2 additional resolution bits per channel and we
1447 * have room for 4, so we shift them to the left.
1da177e4 1448 */
79b92f2b
DW		 1449 if (data->type == adm1027 || data->type == adt7463 ||
1450 data->type == adt7468) {
1da177e4
LT		 1451 int ext1 = lm85_read_value(client,
1452 ADM1027_REG_EXTEND_ADC1);
1453 int ext2 = lm85_read_value(client,
1454 ADM1027_REG_EXTEND_ADC2);
1455 int val = (ext1 << 8) + ext2;
1456
1f44809a
JD		 1457 for (i = 0; i <= 4; i++)
1458 data->in_ext[i] =
1459 ((val >> (i * 2)) & 0x03) << 2;
1da177e4 1460
1f44809a
JD		 1461 for (i = 0; i <= 2; i++)
1462 data->temp_ext[i] =
1463 (val >> ((i + 4) * 2)) & 0x0c;
1da177e4
LT		 1464 }
1465
9c516ef4
JD		 1466 data->vid = lm85_read_value(client, LM85_REG_VID);
1467
1468 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1469 data->in[i] =
1470 lm85_read_value(client, LM85_REG_IN(i));
e89e22b2
JD		 1471 data->fan[i] =
1472 lm85_read_value(client, LM85_REG_FAN(i));
1da177e4
LT		 1473 }
1474
de248805
GR		 1475 if (!data->has_vid5)
1476 data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
9c516ef4 1477
79b92f2b
DW		 1478 if (data->type == adt7468)
1479 data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
1480
1da177e4
LT		 1481 for (i = 0; i <= 2; ++i) {
1482 data->temp[i] =
1483 lm85_read_value(client, LM85_REG_TEMP(i));
1da177e4
LT		 1484 data->pwm[i] =
1485 lm85_read_value(client, LM85_REG_PWM(i));
79b92f2b
DW		 1486
1487 if (IS_ADT7468_OFF64(data))
1488 data->temp[i] -= 64;
1da177e4
LT		 1489 }
1490
1491 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1492
dd1ac538 1493 if (data->type == emc6d100) {
1da177e4
LT		 1494 /* Three more voltage sensors */
1495 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1496 data->in[i] = lm85_read_value(client,
1497 EMC6D100_REG_IN(i));
1da177e4
LT		 1498 }
1499 /* More alarm bits */
1f44809a
JD		 1500 data->alarms |= lm85_read_value(client,
1501 EMC6D100_REG_ALARM3) << 16;
06923f84
GR		 1502 } else if (data->type == emc6d102 || data->type == emc6d103 ||
1503 data->type == emc6d103s) {
1da177e4
LT		 1504 /* Have to read LSB bits after the MSB ones because
1505 the reading of the MSB bits has frozen the
1506 LSBs (backward from the ADM1027).
1507 */
1508 int ext1 = lm85_read_value(client,
1509 EMC6D102_REG_EXTEND_ADC1);
1510 int ext2 = lm85_read_value(client,
1511 EMC6D102_REG_EXTEND_ADC2);
1512 int ext3 = lm85_read_value(client,
1513 EMC6D102_REG_EXTEND_ADC3);
1514 int ext4 = lm85_read_value(client,
1515 EMC6D102_REG_EXTEND_ADC4);
1516 data->in_ext[0] = ext3 & 0x0f;
1517 data->in_ext[1] = ext4 & 0x0f;
e89e22b2
JD		 1518 data->in_ext[2] = ext4 >> 4;
1519 data->in_ext[3] = ext3 >> 4;
1520 data->in_ext[4] = ext2 >> 4;
1da177e4
LT		 1521
1522 data->temp_ext[0] = ext1 & 0x0f;
1523 data->temp_ext[1] = ext2 & 0x0f;
e89e22b2 1524 data->temp_ext[2] = ext1 >> 4;
1da177e4
LT		 1525 }
1526
1f44809a
JD		 1527 data->last_reading = jiffies;
1528 } /* last_reading */
1da177e4 1529
1f44809a
JD		 1530 if (!data->valid ||
1531 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
1da177e4
LT		 1532 /* Things that don't change often */
1533 dev_dbg(&client->dev, "Reading config values\n");
1534
9c516ef4 1535 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1536 data->in_min[i] =
1537 lm85_read_value(client, LM85_REG_IN_MIN(i));
1538 data->in_max[i] =
1539 lm85_read_value(client, LM85_REG_IN_MAX(i));
e89e22b2
JD		 1540 data->fan_min[i] =
1541 lm85_read_value(client, LM85_REG_FAN_MIN(i));
1da177e4
LT		 1542 }
1543
de248805 1544 if (!data->has_vid5) {
9c516ef4
JD		 1545 data->in_min[4] = lm85_read_value(client,
1546 LM85_REG_IN_MIN(4));
1547 data->in_max[4] = lm85_read_value(client,
1548 LM85_REG_IN_MAX(4));
1549 }
1550
1f44809a 1551 if (data->type == emc6d100) {
1da177e4 1552 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1553 data->in_min[i] = lm85_read_value(client,
1554 EMC6D100_REG_IN_MIN(i));
1555 data->in_max[i] = lm85_read_value(client,
1556 EMC6D100_REG_IN_MAX(i));
1da177e4
LT		 1557 }
1558 }
1559
1da177e4 1560 for (i = 0; i <= 2; ++i) {
e89e22b2
JD		 1561 int val;
1562
1da177e4
LT		 1563 data->temp_min[i] =
1564 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1565 data->temp_max[i] =
1566 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1da177e4 1567
1da177e4
LT		 1568 data->autofan[i].config =
1569 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1570 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
34e7dc6c 1571 data->pwm_freq[i] = val & 0x07;
e89e22b2 1572 data->zone[i].range = val >> 4;
1da177e4
LT		 1573 data->autofan[i].min_pwm =
1574 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1575 data->zone[i].limit =
1576 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1577 data->zone[i].critical =
1578 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
79b92f2b
DW		 1579
1580 if (IS_ADT7468_OFF64(data)) {
1581 data->temp_min[i] -= 64;
1582 data->temp_max[i] -= 64;
1583 data->zone[i].limit -= 64;
1584 data->zone[i].critical -= 64;
1585 }
1da177e4
LT		 1586 }
1587
06923f84
GR		 1588 if (data->type != emc6d103s) {
1589 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1590 data->autofan[0].min_off = (i & 0x20) != 0;
1591 data->autofan[1].min_off = (i & 0x40) != 0;
1592 data->autofan[2].min_off = (i & 0x80) != 0;
1da177e4 1593
06923f84
GR		 1594 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1595 data->zone[0].hyst = i >> 4;
1596 data->zone[1].hyst = i & 0x0f;
1da177e4 1597
06923f84
GR		 1598 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1599 data->zone[2].hyst = i >> 4;
1600 }
1da177e4 1601
1da177e4 1602 data->last_config = jiffies;
1f44809a 1603 } /* last_config */
1da177e4
LT		 1604
1605 data->valid = 1;
1606
9a61bf63 1607 mutex_unlock(&data->update_lock);
1da177e4
LT		 1608
1609 return data;
1610}
1611
1612
1613static int __init sm_lm85_init(void)
1614{
1615 return i2c_add_driver(&lm85_driver);
1616}
1617
1f44809a 1618static void __exit sm_lm85_exit(void)
1da177e4
LT		 1619{
1620 i2c_del_driver(&lm85_driver);
1621}
1622
1da177e4 1623MODULE_LICENSE("GPL");
1f44809a
JD		 1624MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1625 "Margit Schubert-While <margitsw@t-online.de>, "
e89e22b2 1626 "Justin Thiessen <jthiessen@penguincomputing.com>");
1da177e4
LT		 1627MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1628
1629module_init(sm_lm85_init);
1630module_exit(sm_lm85_exit);
Linux 6.x block layer and io_uring tree(s)