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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
[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>
8a0795d9 8 Copyright (C) 2007, 2008 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
LT		 40
41/* Insmod parameters */
79b92f2b
DW		 42I2C_CLIENT_INSMOD_7(lm85b, lm85c, adm1027, adt7463, adt7468, emc6d100,
43 emc6d102);
1da177e4
LT		 44
45/* The LM85 registers */
46
47#define LM85_REG_IN(nr) (0x20 + (nr))
48#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
49#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
50
51#define LM85_REG_TEMP(nr) (0x25 + (nr))
52#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
53#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
54
55/* Fan speeds are LSB, MSB (2 bytes) */
1f44809a
JD		 56#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
57#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
1da177e4
LT		 58
59#define LM85_REG_PWM(nr) (0x30 + (nr))
60
1da177e4
LT		 61#define LM85_REG_COMPANY 0x3e
62#define LM85_REG_VERSTEP 0x3f
79b92f2b
DW		 63
64#define ADT7468_REG_CFG5 0x7c
65#define ADT7468_OFF64 0x01
66#define IS_ADT7468_OFF64(data) \
67 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
68
1da177e4 69/* These are the recognized values for the above regs */
1da177e4
LT		 70#define LM85_COMPANY_NATIONAL 0x01
71#define LM85_COMPANY_ANALOG_DEV 0x41
1f44809a 72#define LM85_COMPANY_SMSC 0x5c
1da177e4
LT		 73#define LM85_VERSTEP_VMASK 0xf0
74#define LM85_VERSTEP_GENERIC 0x60
75#define LM85_VERSTEP_LM85C 0x60
76#define LM85_VERSTEP_LM85B 0x62
77#define LM85_VERSTEP_ADM1027 0x60
78#define LM85_VERSTEP_ADT7463 0x62
79#define LM85_VERSTEP_ADT7463C 0x6A
79b92f2b
DW		 80#define LM85_VERSTEP_ADT7468_1 0x71
81#define LM85_VERSTEP_ADT7468_2 0x72
1da177e4
LT		 82#define LM85_VERSTEP_EMC6D100_A0 0x60
83#define LM85_VERSTEP_EMC6D100_A1 0x61
84#define LM85_VERSTEP_EMC6D102 0x65
85
86#define LM85_REG_CONFIG 0x40
87
88#define LM85_REG_ALARM1 0x41
89#define LM85_REG_ALARM2 0x42
90
91#define LM85_REG_VID 0x43
92
93/* Automated FAN control */
94#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
95#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
96#define LM85_REG_AFAN_SPIKE1 0x62
1da177e4
LT		 97#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
98#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
99#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
100#define LM85_REG_AFAN_HYST1 0x6d
101#define LM85_REG_AFAN_HYST2 0x6e
102
1da177e4
LT		 103#define ADM1027_REG_EXTEND_ADC1 0x76
104#define ADM1027_REG_EXTEND_ADC2 0x77
1da177e4
LT		 105
106#define EMC6D100_REG_ALARM3 0x7d
107/* IN5, IN6 and IN7 */
1f44809a
JD		 108#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
109#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
110#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
1da177e4
LT		 111#define EMC6D102_REG_EXTEND_ADC1 0x85
112#define EMC6D102_REG_EXTEND_ADC2 0x86
113#define EMC6D102_REG_EXTEND_ADC3 0x87
114#define EMC6D102_REG_EXTEND_ADC4 0x88
115
1da177e4 116
1f44809a 117/* Conversions. Rounding and limit checking is only done on the TO_REG
1da177e4
LT		 118 variants. Note that you should be a bit careful with which arguments
119 these macros are called: arguments may be evaluated more than once.
120 */
121
122/* IN are scaled acording to built-in resistors */
e89e22b2 123static const int lm85_scaling[] = { /* .001 Volts */
1f44809a
JD		 124 2500, 2250, 3300, 5000, 12000,
125 3300, 1500, 1800 /*EMC6D100*/
126};
127#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
1da177e4 128
1f44809a
JD		 129#define INS_TO_REG(n, val) \
130 SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
1da177e4 131
1f44809a 132#define INSEXT_FROM_REG(n, val, ext) \
5a4d3ef3 133 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
1da177e4 134
1f44809a 135#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
1da177e4
LT		 136
137/* FAN speed is measured using 90kHz clock */
63f281a6
JD		 138static inline u16 FAN_TO_REG(unsigned long val)
139{
140 if (!val)
141 return 0xffff;
142 return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
143}
1f44809a
JD		 144#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
145 5400000 / (val))
1da177e4
LT		 146
147/* Temperature is reported in .001 degC increments */
148#define TEMP_TO_REG(val) \
1f44809a
JD		 149 SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
150#define TEMPEXT_FROM_REG(val, ext) \
5a4d3ef3
JD		 151 SCALE(((val) << 4) + (ext), 16, 1000)
152#define TEMP_FROM_REG(val) ((val) * 1000)
1da177e4 153
1f44809a 154#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
1da177e4
LT		 155#define PWM_FROM_REG(val) (val)
156
157
158/* ZONEs have the following parameters:
159 * Limit (low) temp, 1. degC
160 * Hysteresis (below limit), 1. degC (0-15)
161 * Range of speed control, .1 degC (2-80)
162 * Critical (high) temp, 1. degC
163 *
164 * FAN PWMs have the following parameters:
165 * Reference Zone, 1, 2, 3, etc.
166 * Spinup time, .05 sec
167 * PWM value at limit/low temp, 1 count
168 * PWM Frequency, 1. Hz
169 * PWM is Min or OFF below limit, flag
170 * Invert PWM output, flag
171 *
172 * Some chips filter the temp, others the fan.
173 * Filter constant (or disabled) .1 seconds
174 */
175
176/* These are the zone temperature range encodings in .001 degree C */
e89e22b2 177static const int lm85_range_map[] = {
1f44809a
JD		 178 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
179 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
180};
181
182static int RANGE_TO_REG(int range)
1da177e4
LT		 183{
184 int i;
185
d38b1497 186 /* Find the closest match */
1b92adad
JD		 187 for (i = 0; i < 15; ++i) {
188 if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2)
189 break;
1da177e4 190 }
d38b1497 191
1b92adad 192 return i;
1da177e4 193}
1f44809a 194#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
1da177e4 195
1da177e4 196/* These are the PWM frequency encodings */
34e7dc6c 197static const int lm85_freq_map[8] = { /* 1 Hz */
8a0795d9
JD		 198 10, 15, 23, 30, 38, 47, 61, 94
199};
200static const int adm1027_freq_map[8] = { /* 1 Hz */
201 11, 15, 22, 29, 35, 44, 59, 88
1f44809a
JD		 202};
203
8a0795d9 204static int FREQ_TO_REG(const int *map, int freq)
1da177e4
LT		 205{
206 int i;
207
86010c98 208 /* Find the closest match */
1f44809a 209 for (i = 0; i < 7; ++i)
8a0795d9 210 if (freq <= (map[i] + map[i + 1]) / 2)
1f44809a 211 break;
e89e22b2 212 return i;
1da177e4 213}
8a0795d9
JD		 214
215static int FREQ_FROM_REG(const int *map, u8 reg)
216{
217 return map[reg & 0x07];
218}
1da177e4
LT		 219
220/* Since we can't use strings, I'm abusing these numbers
221 * to stand in for the following meanings:
222 * 1 -- PWM responds to Zone 1
223 * 2 -- PWM responds to Zone 2
224 * 3 -- PWM responds to Zone 3
225 * 23 -- PWM responds to the higher temp of Zone 2 or 3
226 * 123 -- PWM responds to highest of Zone 1, 2, or 3
227 * 0 -- PWM is always at 0% (ie, off)
228 * -1 -- PWM is always at 100%
229 * -2 -- PWM responds to manual control
230 */
231
e89e22b2
JD		 232static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
233#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
1da177e4 234
1f44809a 235static int ZONE_TO_REG(int zone)
1da177e4
LT		 236{
237 int i;
238
1f44809a
JD		 239 for (i = 0; i <= 7; ++i)
240 if (zone == lm85_zone_map[i])
241 break;
242 if (i > 7) /* Not found. */
1da177e4 243 i = 3; /* Always 100% */
e89e22b2 244 return i << 5;
1da177e4
LT		 245}
246
1f44809a
JD		 247#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
248#define HYST_FROM_REG(val) ((val) * 1000)
1da177e4 249
1da177e4
LT		 250/* Chip sampling rates
251 *
252 * Some sensors are not updated more frequently than once per second
253 * so it doesn't make sense to read them more often than that.
254 * We cache the results and return the saved data if the driver
255 * is called again before a second has elapsed.
256 *
257 * Also, there is significant configuration data for this chip
258 * given the automatic PWM fan control that is possible. There
259 * are about 47 bytes of config data to only 22 bytes of actual
260 * readings. So, we keep the config data up to date in the cache
261 * when it is written and only sample it once every 1 *minute*
262 */
263#define LM85_DATA_INTERVAL (HZ + HZ / 2)
264#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
265
1da177e4
LT		 266/* LM85 can automatically adjust fan speeds based on temperature
267 * This structure encapsulates an entire Zone config. There are
268 * three zones (one for each temperature input) on the lm85
269 */
270struct lm85_zone {
271 s8 limit; /* Low temp limit */
272 u8 hyst; /* Low limit hysteresis. (0-15) */
273 u8 range; /* Temp range, encoded */
274 s8 critical; /* "All fans ON" temp limit */
1f44809a 275 u8 off_desired; /* Actual "off" temperature specified. Preserved
1da177e4
LT		 276 * to prevent "drift" as other autofan control
277 * values change.
278 */
1f44809a 279 u8 max_desired; /* Actual "max" temperature specified. Preserved
1da177e4
LT		 280 * to prevent "drift" as other autofan control
281 * values change.
282 */
283};
284
285struct lm85_autofan {
286 u8 config; /* Register value */
1da177e4
LT		 287 u8 min_pwm; /* Minimum PWM value, encoded */
288 u8 min_off; /* Min PWM or OFF below "limit", flag */
289};
290
ed6bafbf
JD		 291/* For each registered chip, we need to keep some data in memory.
292 The structure is dynamically allocated. */
1da177e4 293struct lm85_data {
1beeffe4 294 struct device *hwmon_dev;
8a0795d9 295 const int *freq_map;
1da177e4
LT		 296 enum chips type;
297
9a61bf63 298 struct mutex update_lock;
1da177e4
LT		 299 int valid; /* !=0 if following fields are valid */
300 unsigned long last_reading; /* In jiffies */
301 unsigned long last_config; /* In jiffies */
302
303 u8 in[8]; /* Register value */
304 u8 in_max[8]; /* Register value */
305 u8 in_min[8]; /* Register value */
306 s8 temp[3]; /* Register value */
307 s8 temp_min[3]; /* Register value */
308 s8 temp_max[3]; /* Register value */
1da177e4
LT		 309 u16 fan[4]; /* Register value */
310 u16 fan_min[4]; /* Register value */
311 u8 pwm[3]; /* Register value */
34e7dc6c 312 u8 pwm_freq[3]; /* Register encoding */
1da177e4
LT		 313 u8 temp_ext[3]; /* Decoded values */
314 u8 in_ext[8]; /* Decoded values */
1da177e4
LT		 315 u8 vid; /* Register value */
316 u8 vrm; /* VRM version */
1da177e4 317 u32 alarms; /* Register encoding, combined */
79b92f2b 318 u8 cfg5; /* Config Register 5 on ADT7468 */
1da177e4
LT		 319 struct lm85_autofan autofan[3];
320 struct lm85_zone zone[3];
321};
322
67712d01
JD		 323static int lm85_detect(struct i2c_client *client, int kind,
324 struct i2c_board_info *info);
325static int lm85_probe(struct i2c_client *client,
326 const struct i2c_device_id *id);
327static int lm85_remove(struct i2c_client *client);
1da177e4 328
f6c27fc1 329static int lm85_read_value(struct i2c_client *client, u8 reg);
e89e22b2 330static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
1da177e4 331static struct lm85_data *lm85_update_device(struct device *dev);
1da177e4
LT		 332
333
67712d01
JD		 334static const struct i2c_device_id lm85_id[] = {
335 { "adm1027", adm1027 },
336 { "adt7463", adt7463 },
337 { "lm85", any_chip },
338 { "lm85b", lm85b },
339 { "lm85c", lm85c },
340 { "emc6d100", emc6d100 },
341 { "emc6d101", emc6d100 },
342 { "emc6d102", emc6d102 },
343 { }
344};
345MODULE_DEVICE_TABLE(i2c, lm85_id);
346
1da177e4 347static struct i2c_driver lm85_driver = {
67712d01 348 .class = I2C_CLASS_HWMON,
cdaf7934 349 .driver = {
cdaf7934
LR		 350 .name = "lm85",
351 },
67712d01
JD		 352 .probe = lm85_probe,
353 .remove = lm85_remove,
354 .id_table = lm85_id,
355 .detect = lm85_detect,
356 .address_data = &addr_data,
1da177e4
LT		 357};
358
359
360/* 4 Fans */
b353a487
JD		 361static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
362 char *buf)
1da177e4 363{
b353a487 364 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 365 struct lm85_data *data = lm85_update_device(dev);
1f44809a 366 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
1da177e4 367}
b353a487
JD		 368
369static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
370 char *buf)
1da177e4 371{
b353a487 372 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 373 struct lm85_data *data = lm85_update_device(dev);
1f44809a 374 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
1da177e4 375}
b353a487
JD		 376
377static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
378 const char *buf, size_t count)
1da177e4 379{
b353a487 380 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 381 struct i2c_client *client = to_i2c_client(dev);
382 struct lm85_data *data = i2c_get_clientdata(client);
63f281a6 383 unsigned long val = simple_strtoul(buf, NULL, 10);
1da177e4 384
9a61bf63 385 mutex_lock(&data->update_lock);
1da177e4
LT		 386 data->fan_min[nr] = FAN_TO_REG(val);
387 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
9a61bf63 388 mutex_unlock(&data->update_lock);
1da177e4
LT		 389 return count;
390}
391
392#define show_fan_offset(offset) \
b353a487
JD		 393static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
394 show_fan, NULL, offset - 1); \
395static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
396 show_fan_min, set_fan_min, offset - 1)
1da177e4
LT		 397
398show_fan_offset(1);
399show_fan_offset(2);
400show_fan_offset(3);
401show_fan_offset(4);
402
403/* vid, vrm, alarms */
404
1f44809a
JD		 405static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
406 char *buf)
1da177e4
LT		 407{
408 struct lm85_data *data = lm85_update_device(dev);
9c516ef4
JD		 409 int vid;
410
411 if (data->type == adt7463 && (data->vid & 0x80)) {
412 /* 6-pin VID (VRM 10) */
413 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
414 } else {
415 /* 5-pin VID (VRM 9) */
416 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
417 }
418
419 return sprintf(buf, "%d\n", vid);
1da177e4
LT		 420}
421
422static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
423
1f44809a
JD		 424static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
425 char *buf)
1da177e4 426{
90d6619a 427 struct lm85_data *data = dev_get_drvdata(dev);
1da177e4
LT		 428 return sprintf(buf, "%ld\n", (long) data->vrm);
429}
430
1f44809a
JD		 431static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
432 const char *buf, size_t count)
1da177e4 433{
8f74efe8
JD		 434 struct lm85_data *data = dev_get_drvdata(dev);
435 data->vrm = simple_strtoul(buf, NULL, 10);
1da177e4
LT		 436 return count;
437}
438
439static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
440
1f44809a
JD		 441static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
442 *attr, char *buf)
1da177e4
LT		 443{
444 struct lm85_data *data = lm85_update_device(dev);
68188ba7 445 return sprintf(buf, "%u\n", data->alarms);
1da177e4
LT		 446}
447
448static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
449
bf76e9d3
JD		 450static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
451 char *buf)
452{
453 int nr = to_sensor_dev_attr(attr)->index;
454 struct lm85_data *data = lm85_update_device(dev);
455 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
456}
457
458static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
459static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
460static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
461static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
462static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
463static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
464static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
465static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
466static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
467static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
468static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
469static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
470static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
471static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
472static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
473static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
474static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
475
1da177e4
LT		 476/* pwm */
477
b353a487
JD		 478static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
479 char *buf)
1da177e4 480{
b353a487 481 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 482 struct lm85_data *data = lm85_update_device(dev);
1f44809a 483 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
1da177e4 484}
b353a487
JD		 485
486static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
487 const char *buf, size_t count)
1da177e4 488{
b353a487 489 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 490 struct i2c_client *client = to_i2c_client(dev);
491 struct lm85_data *data = i2c_get_clientdata(client);
492 long val = simple_strtol(buf, NULL, 10);
493
9a61bf63 494 mutex_lock(&data->update_lock);
1da177e4
LT		 495 data->pwm[nr] = PWM_TO_REG(val);
496 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
9a61bf63 497 mutex_unlock(&data->update_lock);
1da177e4
LT		 498 return count;
499}
b353a487
JD		 500
501static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
502 *attr, char *buf)
1da177e4 503{
b353a487 504 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 505 struct lm85_data *data = lm85_update_device(dev);
4b4df95d 506 int pwm_zone, enable;
1da177e4
LT		 507
508 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
4b4df95d
JD		 509 switch (pwm_zone) {
510 case -1: /* PWM is always at 100% */
511 enable = 0;
512 break;
513 case 0: /* PWM is always at 0% */
514 case -2: /* PWM responds to manual control */
515 enable = 1;
516 break;
517 default: /* PWM in automatic mode */
518 enable = 2;
519 }
520 return sprintf(buf, "%d\n", enable);
1da177e4
LT		 521}
522
455f791e
JD		 523static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
524 *attr, const char *buf, size_t count)
525{
526 int nr = to_sensor_dev_attr(attr)->index;
527 struct i2c_client *client = to_i2c_client(dev);
528 struct lm85_data *data = i2c_get_clientdata(client);
529 long val = simple_strtol(buf, NULL, 10);
530 u8 config;
531
532 switch (val) {
533 case 0:
534 config = 3;
535 break;
536 case 1:
537 config = 7;
538 break;
539 case 2:
540 /* Here we have to choose arbitrarily one of the 5 possible
541 configurations; I go for the safest */
542 config = 6;
543 break;
544 default:
545 return -EINVAL;
546 }
547
548 mutex_lock(&data->update_lock);
549 data->autofan[nr].config = lm85_read_value(client,
550 LM85_REG_AFAN_CONFIG(nr));
551 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
552 | (config << 5);
553 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
554 data->autofan[nr].config);
555 mutex_unlock(&data->update_lock);
556 return count;
557}
558
34e7dc6c
JD		 559static ssize_t show_pwm_freq(struct device *dev,
560 struct device_attribute *attr, char *buf)
561{
562 int nr = to_sensor_dev_attr(attr)->index;
563 struct lm85_data *data = lm85_update_device(dev);
8a0795d9
JD		 564 return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map,
565 data->pwm_freq[nr]));
34e7dc6c
JD		 566}
567
568static ssize_t set_pwm_freq(struct device *dev,
569 struct device_attribute *attr, const char *buf, size_t count)
570{
571 int nr = to_sensor_dev_attr(attr)->index;
572 struct i2c_client *client = to_i2c_client(dev);
573 struct lm85_data *data = i2c_get_clientdata(client);
574 long val = simple_strtol(buf, NULL, 10);
575
576 mutex_lock(&data->update_lock);
8a0795d9 577 data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
34e7dc6c
JD		 578 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
579 (data->zone[nr].range << 4)
580 | data->pwm_freq[nr]);
581 mutex_unlock(&data->update_lock);
582 return count;
583}
584
1da177e4 585#define show_pwm_reg(offset) \
b353a487
JD		 586static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
587 show_pwm, set_pwm, offset - 1); \
455f791e 588static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
34e7dc6c
JD		 589 show_pwm_enable, set_pwm_enable, offset - 1); \
590static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
591 show_pwm_freq, set_pwm_freq, offset - 1)
1da177e4
LT		 592
593show_pwm_reg(1);
594show_pwm_reg(2);
595show_pwm_reg(3);
596
597/* Voltages */
598
b353a487
JD		 599static ssize_t show_in(struct device *dev, struct device_attribute *attr,
600 char *buf)
1da177e4 601{
b353a487 602 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 603 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 604 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
605 data->in_ext[nr]));
1da177e4 606}
b353a487 607
1f44809a 608static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
b353a487 609 char *buf)
1da177e4 610{
b353a487 611 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 612 struct lm85_data *data = lm85_update_device(dev);
1f44809a 613 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
1da177e4 614}
b353a487
JD		 615
616static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
617 const char *buf, size_t count)
1da177e4 618{
b353a487 619 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 620 struct i2c_client *client = to_i2c_client(dev);
621 struct lm85_data *data = i2c_get_clientdata(client);
622 long val = simple_strtol(buf, NULL, 10);
623
9a61bf63 624 mutex_lock(&data->update_lock);
1da177e4
LT		 625 data->in_min[nr] = INS_TO_REG(nr, val);
626 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
9a61bf63 627 mutex_unlock(&data->update_lock);
1da177e4
LT		 628 return count;
629}
b353a487
JD		 630
631static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
632 char *buf)
1da177e4 633{
b353a487 634 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 635 struct lm85_data *data = lm85_update_device(dev);
1f44809a 636 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
1da177e4 637}
b353a487
JD		 638
639static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
640 const char *buf, size_t count)
1da177e4 641{
b353a487 642 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 643 struct i2c_client *client = to_i2c_client(dev);
644 struct lm85_data *data = i2c_get_clientdata(client);
645 long val = simple_strtol(buf, NULL, 10);
646
9a61bf63 647 mutex_lock(&data->update_lock);
1da177e4
LT		 648 data->in_max[nr] = INS_TO_REG(nr, val);
649 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
9a61bf63 650 mutex_unlock(&data->update_lock);
1da177e4
LT		 651 return count;
652}
b353a487 653
1da177e4 654#define show_in_reg(offset) \
b353a487
JD		 655static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
656 show_in, NULL, offset); \
657static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
658 show_in_min, set_in_min, offset); \
659static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
660 show_in_max, set_in_max, offset)
1da177e4
LT		 661
662show_in_reg(0);
663show_in_reg(1);
664show_in_reg(2);
665show_in_reg(3);
666show_in_reg(4);
6b9aad2d
JD		 667show_in_reg(5);
668show_in_reg(6);
669show_in_reg(7);
1da177e4
LT		 670
671/* Temps */
672
b353a487
JD		 673static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
674 char *buf)
1da177e4 675{
b353a487 676 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 677 struct lm85_data *data = lm85_update_device(dev);
1f44809a
JD		 678 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
679 data->temp_ext[nr]));
1da177e4 680}
b353a487
JD		 681
682static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
683 char *buf)
1da177e4 684{
b353a487 685 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 686 struct lm85_data *data = lm85_update_device(dev);
1f44809a 687 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
1da177e4 688}
b353a487
JD		 689
690static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
691 const char *buf, size_t count)
1da177e4 692{
b353a487 693 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 694 struct i2c_client *client = to_i2c_client(dev);
695 struct lm85_data *data = i2c_get_clientdata(client);
696 long val = simple_strtol(buf, NULL, 10);
697
79b92f2b
DW		 698 if (IS_ADT7468_OFF64(data))
699 val += 64;
700
9a61bf63 701 mutex_lock(&data->update_lock);
1da177e4
LT		 702 data->temp_min[nr] = TEMP_TO_REG(val);
703 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
9a61bf63 704 mutex_unlock(&data->update_lock);
1da177e4
LT		 705 return count;
706}
b353a487
JD		 707
708static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
709 char *buf)
1da177e4 710{
b353a487 711 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 712 struct lm85_data *data = lm85_update_device(dev);
1f44809a 713 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
1da177e4 714}
b353a487
JD		 715
716static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
717 const char *buf, size_t count)
1da177e4 718{
b353a487 719 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 720 struct i2c_client *client = to_i2c_client(dev);
721 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 722 long val = simple_strtol(buf, NULL, 10);
1da177e4 723
79b92f2b
DW		 724 if (IS_ADT7468_OFF64(data))
725 val += 64;
726
9a61bf63 727 mutex_lock(&data->update_lock);
1da177e4
LT		 728 data->temp_max[nr] = TEMP_TO_REG(val);
729 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
9a61bf63 730 mutex_unlock(&data->update_lock);
1da177e4
LT		 731 return count;
732}
b353a487 733
1da177e4 734#define show_temp_reg(offset) \
b353a487
JD		 735static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
736 show_temp, NULL, offset - 1); \
737static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
738 show_temp_min, set_temp_min, offset - 1); \
739static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
740 show_temp_max, set_temp_max, offset - 1);
1da177e4
LT		 741
742show_temp_reg(1);
743show_temp_reg(2);
744show_temp_reg(3);
745
746
747/* Automatic PWM control */
748
b353a487
JD		 749static ssize_t show_pwm_auto_channels(struct device *dev,
750 struct device_attribute *attr, char *buf)
1da177e4 751{
b353a487 752 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 753 struct lm85_data *data = lm85_update_device(dev);
1f44809a 754 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
1da177e4 755}
b353a487
JD		 756
757static ssize_t set_pwm_auto_channels(struct device *dev,
758 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 759{
b353a487 760 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 761 struct i2c_client *client = to_i2c_client(dev);
762 struct lm85_data *data = i2c_get_clientdata(client);
1f44809a 763 long val = simple_strtol(buf, NULL, 10);
1da177e4 764
9a61bf63 765 mutex_lock(&data->update_lock);
1da177e4 766 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
1f44809a 767 | ZONE_TO_REG(val);
1da177e4
LT		 768 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
769 data->autofan[nr].config);
9a61bf63 770 mutex_unlock(&data->update_lock);
1da177e4
LT		 771 return count;
772}
b353a487
JD		 773
774static ssize_t show_pwm_auto_pwm_min(struct device *dev,
775 struct device_attribute *attr, char *buf)
1da177e4 776{
b353a487 777 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 778 struct lm85_data *data = lm85_update_device(dev);
1f44809a 779 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
1da177e4 780}
b353a487
JD		 781
782static ssize_t set_pwm_auto_pwm_min(struct device *dev,
783 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 784{
b353a487 785 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 786 struct i2c_client *client = to_i2c_client(dev);
787 struct lm85_data *data = i2c_get_clientdata(client);
788 long val = simple_strtol(buf, NULL, 10);
789
9a61bf63 790 mutex_lock(&data->update_lock);
1da177e4
LT		 791 data->autofan[nr].min_pwm = PWM_TO_REG(val);
792 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
793 data->autofan[nr].min_pwm);
9a61bf63 794 mutex_unlock(&data->update_lock);
1da177e4
LT		 795 return count;
796}
b353a487
JD		 797
798static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
799 struct device_attribute *attr, char *buf)
1da177e4 800{
b353a487 801 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 802 struct lm85_data *data = lm85_update_device(dev);
1f44809a 803 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
1da177e4 804}
b353a487
JD		 805
806static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
807 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 808{
b353a487 809 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 810 struct i2c_client *client = to_i2c_client(dev);
811 struct lm85_data *data = i2c_get_clientdata(client);
812 long val = simple_strtol(buf, NULL, 10);
7133e56f 813 u8 tmp;
1da177e4 814
9a61bf63 815 mutex_lock(&data->update_lock);
1da177e4 816 data->autofan[nr].min_off = val;
7133e56f
JD		 817 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
818 tmp &= ~(0x20 << nr);
819 if (data->autofan[nr].min_off)
820 tmp |= 0x20 << nr;
821 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
9a61bf63 822 mutex_unlock(&data->update_lock);
1da177e4
LT		 823 return count;
824}
b353a487 825
1da177e4 826#define pwm_auto(offset) \
b353a487
JD		 827static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
828 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
829 set_pwm_auto_channels, offset - 1); \
830static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
831 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
832 set_pwm_auto_pwm_min, offset - 1); \
833static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
834 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
34e7dc6c 835 set_pwm_auto_pwm_minctl, offset - 1)
b353a487 836
1da177e4
LT		 837pwm_auto(1);
838pwm_auto(2);
839pwm_auto(3);
840
841/* Temperature settings for automatic PWM control */
842
b353a487
JD		 843static ssize_t show_temp_auto_temp_off(struct device *dev,
844 struct device_attribute *attr, char *buf)
1da177e4 845{
b353a487 846 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 847 struct lm85_data *data = lm85_update_device(dev);
1f44809a 848 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
1da177e4
LT		 849 HYST_FROM_REG(data->zone[nr].hyst));
850}
b353a487
JD		 851
852static ssize_t set_temp_auto_temp_off(struct device *dev,
853 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 854{
b353a487 855 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 856 struct i2c_client *client = to_i2c_client(dev);
857 struct lm85_data *data = i2c_get_clientdata(client);
858 int min;
859 long val = simple_strtol(buf, NULL, 10);
860
9a61bf63 861 mutex_lock(&data->update_lock);
1da177e4
LT		 862 min = TEMP_FROM_REG(data->zone[nr].limit);
863 data->zone[nr].off_desired = TEMP_TO_REG(val);
864 data->zone[nr].hyst = HYST_TO_REG(min - val);
1f44809a 865 if (nr == 0 || nr == 1) {
1da177e4
LT		 866 lm85_write_value(client, LM85_REG_AFAN_HYST1,
867 (data->zone[0].hyst << 4)
1f44809a 868 | data->zone[1].hyst);
1da177e4
LT		 869 } else {
870 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 871 (data->zone[2].hyst << 4));
1da177e4 872 }
9a61bf63 873 mutex_unlock(&data->update_lock);
1da177e4
LT		 874 return count;
875}
b353a487
JD		 876
877static ssize_t show_temp_auto_temp_min(struct device *dev,
878 struct device_attribute *attr, char *buf)
1da177e4 879{
b353a487 880 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 881 struct lm85_data *data = lm85_update_device(dev);
1f44809a 882 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
1da177e4 883}
b353a487
JD		 884
885static ssize_t set_temp_auto_temp_min(struct device *dev,
886 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 887{
b353a487 888 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 889 struct i2c_client *client = to_i2c_client(dev);
890 struct lm85_data *data = i2c_get_clientdata(client);
891 long val = simple_strtol(buf, NULL, 10);
892
9a61bf63 893 mutex_lock(&data->update_lock);
1da177e4
LT		 894 data->zone[nr].limit = TEMP_TO_REG(val);
895 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
896 data->zone[nr].limit);
897
898/* Update temp_auto_max and temp_auto_range */
899 data->zone[nr].range = RANGE_TO_REG(
900 TEMP_FROM_REG(data->zone[nr].max_desired) -
901 TEMP_FROM_REG(data->zone[nr].limit));
902 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
903 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 904 | (data->pwm_freq[nr] & 0x07));
1da177e4
LT		 905
906/* Update temp_auto_hyst and temp_auto_off */
907 data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
908 data->zone[nr].limit) - TEMP_FROM_REG(
909 data->zone[nr].off_desired));
1f44809a 910 if (nr == 0 || nr == 1) {
1da177e4
LT		 911 lm85_write_value(client, LM85_REG_AFAN_HYST1,
912 (data->zone[0].hyst << 4)
1f44809a 913 | data->zone[1].hyst);
1da177e4
LT		 914 } else {
915 lm85_write_value(client, LM85_REG_AFAN_HYST2,
1f44809a 916 (data->zone[2].hyst << 4));
1da177e4 917 }
9a61bf63 918 mutex_unlock(&data->update_lock);
1da177e4
LT		 919 return count;
920}
b353a487
JD		 921
922static ssize_t show_temp_auto_temp_max(struct device *dev,
923 struct device_attribute *attr, char *buf)
1da177e4 924{
b353a487 925 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 926 struct lm85_data *data = lm85_update_device(dev);
1f44809a 927 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
1da177e4
LT		 928 RANGE_FROM_REG(data->zone[nr].range));
929}
b353a487
JD		 930
931static ssize_t set_temp_auto_temp_max(struct device *dev,
932 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 933{
b353a487 934 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 935 struct i2c_client *client = to_i2c_client(dev);
936 struct lm85_data *data = i2c_get_clientdata(client);
937 int min;
938 long val = simple_strtol(buf, NULL, 10);
939
9a61bf63 940 mutex_lock(&data->update_lock);
1da177e4
LT		 941 min = TEMP_FROM_REG(data->zone[nr].limit);
942 data->zone[nr].max_desired = TEMP_TO_REG(val);
943 data->zone[nr].range = RANGE_TO_REG(
944 val - min);
945 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
946 ((data->zone[nr].range & 0x0f) << 4)
34e7dc6c 947 | (data->pwm_freq[nr] & 0x07));
9a61bf63 948 mutex_unlock(&data->update_lock);
1da177e4
LT		 949 return count;
950}
b353a487
JD		 951
952static ssize_t show_temp_auto_temp_crit(struct device *dev,
953 struct device_attribute *attr, char *buf)
1da177e4 954{
b353a487 955 int nr = to_sensor_dev_attr(attr)->index;
1da177e4 956 struct lm85_data *data = lm85_update_device(dev);
1f44809a 957 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
1da177e4 958}
b353a487
JD		 959
960static ssize_t set_temp_auto_temp_crit(struct device *dev,
1f44809a 961 struct device_attribute *attr, const char *buf, size_t count)
1da177e4 962{
b353a487 963 int nr = to_sensor_dev_attr(attr)->index;
1da177e4
LT		 964 struct i2c_client *client = to_i2c_client(dev);
965 struct lm85_data *data = i2c_get_clientdata(client);
966 long val = simple_strtol(buf, NULL, 10);
967
9a61bf63 968 mutex_lock(&data->update_lock);
1da177e4
LT		 969 data->zone[nr].critical = TEMP_TO_REG(val);
970 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
971 data->zone[nr].critical);
9a61bf63 972 mutex_unlock(&data->update_lock);
1da177e4
LT		 973 return count;
974}
b353a487 975
1da177e4 976#define temp_auto(offset) \
b353a487
JD		 977static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
978 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
979 set_temp_auto_temp_off, offset - 1); \
980static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
981 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
982 set_temp_auto_temp_min, offset - 1); \
983static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
984 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
985 set_temp_auto_temp_max, offset - 1); \
986static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
987 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
988 set_temp_auto_temp_crit, offset - 1);
989
1da177e4
LT		 990temp_auto(1);
991temp_auto(2);
992temp_auto(3);
993
0501a381 994static struct attribute *lm85_attributes[] = {
b353a487
JD		 995 &sensor_dev_attr_fan1_input.dev_attr.attr,
996 &sensor_dev_attr_fan2_input.dev_attr.attr,
997 &sensor_dev_attr_fan3_input.dev_attr.attr,
998 &sensor_dev_attr_fan4_input.dev_attr.attr,
999 &sensor_dev_attr_fan1_min.dev_attr.attr,
1000 &sensor_dev_attr_fan2_min.dev_attr.attr,
1001 &sensor_dev_attr_fan3_min.dev_attr.attr,
1002 &sensor_dev_attr_fan4_min.dev_attr.attr,
bf76e9d3
JD		 1003 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1004 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1005 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1006 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
b353a487
JD		 1007
1008 &sensor_dev_attr_pwm1.dev_attr.attr,
1009 &sensor_dev_attr_pwm2.dev_attr.attr,
1010 &sensor_dev_attr_pwm3.dev_attr.attr,
1011 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1012 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1013 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
34e7dc6c
JD		 1014 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1015 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1016 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
b353a487
JD		 1017
1018 &sensor_dev_attr_in0_input.dev_attr.attr,
1019 &sensor_dev_attr_in1_input.dev_attr.attr,
1020 &sensor_dev_attr_in2_input.dev_attr.attr,
1021 &sensor_dev_attr_in3_input.dev_attr.attr,
1022 &sensor_dev_attr_in0_min.dev_attr.attr,
1023 &sensor_dev_attr_in1_min.dev_attr.attr,
1024 &sensor_dev_attr_in2_min.dev_attr.attr,
1025 &sensor_dev_attr_in3_min.dev_attr.attr,
1026 &sensor_dev_attr_in0_max.dev_attr.attr,
1027 &sensor_dev_attr_in1_max.dev_attr.attr,
1028 &sensor_dev_attr_in2_max.dev_attr.attr,
1029 &sensor_dev_attr_in3_max.dev_attr.attr,
bf76e9d3
JD		 1030 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1031 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1032 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1033 &sensor_dev_attr_in3_alarm.dev_attr.attr,
b353a487
JD		 1034
1035 &sensor_dev_attr_temp1_input.dev_attr.attr,
1036 &sensor_dev_attr_temp2_input.dev_attr.attr,
1037 &sensor_dev_attr_temp3_input.dev_attr.attr,
1038 &sensor_dev_attr_temp1_min.dev_attr.attr,
1039 &sensor_dev_attr_temp2_min.dev_attr.attr,
1040 &sensor_dev_attr_temp3_min.dev_attr.attr,
1041 &sensor_dev_attr_temp1_max.dev_attr.attr,
1042 &sensor_dev_attr_temp2_max.dev_attr.attr,
1043 &sensor_dev_attr_temp3_max.dev_attr.attr,
bf76e9d3
JD		 1044 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1045 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1046 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1047 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1048 &sensor_dev_attr_temp3_fault.dev_attr.attr,
b353a487
JD		 1049
1050 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1051 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1052 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1053 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1054 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1055 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1056 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1057 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1058 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
b353a487
JD		 1059
1060 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1061 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1062 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1063 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1064 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1065 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1066 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1067 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1068 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1069 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1070 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1071 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1072
0501a381
MH		 1073 &dev_attr_vrm.attr,
1074 &dev_attr_cpu0_vid.attr,
1075 &dev_attr_alarms.attr,
0501a381
MH		 1076 NULL
1077};
1078
1079static const struct attribute_group lm85_group = {
1080 .attrs = lm85_attributes,
1081};
1082
6b9aad2d 1083static struct attribute *lm85_attributes_in4[] = {
b353a487
JD		 1084 &sensor_dev_attr_in4_input.dev_attr.attr,
1085 &sensor_dev_attr_in4_min.dev_attr.attr,
1086 &sensor_dev_attr_in4_max.dev_attr.attr,
bf76e9d3 1087 &sensor_dev_attr_in4_alarm.dev_attr.attr,
0501a381
MH		 1088 NULL
1089};
1090
6b9aad2d
JD		 1091static const struct attribute_group lm85_group_in4 = {
1092 .attrs = lm85_attributes_in4,
1093};
1094
1095static struct attribute *lm85_attributes_in567[] = {
1096 &sensor_dev_attr_in5_input.dev_attr.attr,
1097 &sensor_dev_attr_in6_input.dev_attr.attr,
1098 &sensor_dev_attr_in7_input.dev_attr.attr,
1099 &sensor_dev_attr_in5_min.dev_attr.attr,
1100 &sensor_dev_attr_in6_min.dev_attr.attr,
1101 &sensor_dev_attr_in7_min.dev_attr.attr,
1102 &sensor_dev_attr_in5_max.dev_attr.attr,
1103 &sensor_dev_attr_in6_max.dev_attr.attr,
1104 &sensor_dev_attr_in7_max.dev_attr.attr,
bf76e9d3
JD		 1105 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1106 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1107 &sensor_dev_attr_in7_alarm.dev_attr.attr,
6b9aad2d
JD		 1108 NULL
1109};
1110
1111static const struct attribute_group lm85_group_in567 = {
1112 .attrs = lm85_attributes_in567,
0501a381
MH		 1113};
1114
5f447594
JD		 1115static void lm85_init_client(struct i2c_client *client)
1116{
1117 int value;
1118
1119 /* Start monitoring if needed */
1120 value = lm85_read_value(client, LM85_REG_CONFIG);
1121 if (!(value & 0x01)) {
1122 dev_info(&client->dev, "Starting monitoring\n");
1123 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1124 }
1125
1126 /* Warn about unusual configuration bits */
1127 if (value & 0x02)
1128 dev_warn(&client->dev, "Device configuration is locked\n");
1129 if (!(value & 0x04))
1130 dev_warn(&client->dev, "Device is not ready\n");
1131}
1132
67712d01
JD		 1133/* Return 0 if detection is successful, -ENODEV otherwise */
1134static int lm85_detect(struct i2c_client *client, int kind,
1135 struct i2c_board_info *info)
1da177e4 1136{
67712d01
JD		 1137 struct i2c_adapter *adapter = client->adapter;
1138 int address = client->addr;
e89e22b2 1139 const char *type_name;
1da177e4 1140
e89e22b2 1141 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1da177e4 1142 /* We need to be able to do byte I/O */
67712d01 1143 return -ENODEV;
1f44809a 1144 }
1da177e4 1145
69fc1feb
JD		 1146 /* If auto-detecting, determine the chip type */
1147 if (kind < 0) {
1148 int company = lm85_read_value(client, LM85_REG_COMPANY);
1149 int verstep = lm85_read_value(client, LM85_REG_VERSTEP);
1150
1151 dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
1152 "COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1153 address, company, verstep);
1154
1155 /* All supported chips have the version in common */
1156 if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC) {
1157 dev_dbg(&adapter->dev, "Autodetection failed: "
1158 "unsupported version\n");
67712d01 1159 return -ENODEV;
69fc1feb
JD		 1160 }
1161 kind = any_chip;
1162
1163 /* Now, refine the detection */
1164 if (company == LM85_COMPANY_NATIONAL) {
1165 switch (verstep) {
1166 case LM85_VERSTEP_LM85C:
1167 kind = lm85c;
1168 break;
1169 case LM85_VERSTEP_LM85B:
1170 kind = lm85b;
1171 break;
1172 }
1173 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1174 switch (verstep) {
1175 case LM85_VERSTEP_ADM1027:
1176 kind = adm1027;
1177 break;
1178 case LM85_VERSTEP_ADT7463:
1179 case LM85_VERSTEP_ADT7463C:
1180 kind = adt7463;
1181 break;
79b92f2b
DW		 1182 case LM85_VERSTEP_ADT7468_1:
1183 case LM85_VERSTEP_ADT7468_2:
1184 kind = adt7468;
1185 break;
1da177e4 1186 }
69fc1feb
JD		 1187 } else if (company == LM85_COMPANY_SMSC) {
1188 switch (verstep) {
1189 case LM85_VERSTEP_EMC6D100_A0:
1190 case LM85_VERSTEP_EMC6D100_A1:
1191 /* Note: we can't tell a '100 from a '101 */
1192 kind = emc6d100;
1193 break;
1194 case LM85_VERSTEP_EMC6D102:
1195 kind = emc6d102;
1196 break;
1197 }
1198 } else {
1199 dev_dbg(&adapter->dev, "Autodetection failed: "
1200 "unknown vendor\n");
67712d01 1201 return -ENODEV;
1da177e4
LT		 1202 }
1203 }
1204
e89e22b2
JD		 1205 switch (kind) {
1206 case lm85b:
1da177e4 1207 type_name = "lm85b";
e89e22b2
JD		 1208 break;
1209 case lm85c:
1da177e4 1210 type_name = "lm85c";
e89e22b2
JD		 1211 break;
1212 case adm1027:
1da177e4 1213 type_name = "adm1027";
e89e22b2
JD		 1214 break;
1215 case adt7463:
1da177e4 1216 type_name = "adt7463";
e89e22b2 1217 break;
79b92f2b
DW		 1218 case adt7468:
1219 type_name = "adt7468";
1220 break;
e89e22b2 1221 case emc6d100:
1da177e4 1222 type_name = "emc6d100";
e89e22b2
JD		 1223 break;
1224 case emc6d102:
1da177e4 1225 type_name = "emc6d102";
e89e22b2
JD		 1226 break;
1227 default:
1228 type_name = "lm85";
1229 }
67712d01
JD		 1230 strlcpy(info->type, type_name, I2C_NAME_SIZE);
1231
1232 return 0;
1233}
1da177e4 1234
67712d01
JD		 1235static int lm85_probe(struct i2c_client *client,
1236 const struct i2c_device_id *id)
1237{
1238 struct lm85_data *data;
1239 int err;
1240
1241 data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL);
1242 if (!data)
1243 return -ENOMEM;
1244
1245 i2c_set_clientdata(client, data);
1246 data->type = id->driver_data;
9a61bf63 1247 mutex_init(&data->update_lock);
1da177e4 1248
67712d01
JD		 1249 /* Fill in the chip specific driver values */
1250 switch (data->type) {
1251 case adm1027:
1252 case adt7463:
1253 case emc6d100:
1254 case emc6d102:
1255 data->freq_map = adm1027_freq_map;
1256 break;
1257 default:
1258 data->freq_map = lm85_freq_map;
1259 }
1da177e4
LT		 1260
1261 /* Set the VRM version */
303760b4 1262 data->vrm = vid_which_vrm();
1da177e4
LT		 1263
1264 /* Initialize the LM85 chip */
e89e22b2 1265 lm85_init_client(client);
1da177e4
LT		 1266
1267 /* Register sysfs hooks */
e89e22b2
JD		 1268 err = sysfs_create_group(&client->dev.kobj, &lm85_group);
1269 if (err)
f908037a 1270 goto err_kfree;
1da177e4 1271
79b92f2b 1272 /* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
9c516ef4 1273 as a sixth digital VID input rather than an analog input. */
e89e22b2 1274 data->vid = lm85_read_value(client, LM85_REG_VID);
79b92f2b
DW		 1275 if (!((data->type == adt7463 || data->type == adt7468) &&
1276 (data->vid & 0x80)))
e89e22b2 1277 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1278 &lm85_group_in4)))
f908037a 1279 goto err_remove_files;
6b9aad2d
JD		 1280
1281 /* The EMC6D100 has 3 additional voltage inputs */
67712d01 1282 if (data->type == emc6d100)
e89e22b2 1283 if ((err = sysfs_create_group(&client->dev.kobj,
6b9aad2d 1284 &lm85_group_in567)))
f908037a 1285 goto err_remove_files;
0501a381 1286
e89e22b2 1287 data->hwmon_dev = hwmon_device_register(&client->dev);
1beeffe4
TJ		 1288 if (IS_ERR(data->hwmon_dev)) {
1289 err = PTR_ERR(data->hwmon_dev);
f908037a 1290 goto err_remove_files;
9c516ef4
JD		 1291 }
1292
1da177e4
LT		 1293 return 0;
1294
1295 /* Error out and cleanup code */
f908037a 1296 err_remove_files:
e89e22b2
JD		 1297 sysfs_remove_group(&client->dev.kobj, &lm85_group);
1298 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
67712d01 1299 if (data->type == emc6d100)
e89e22b2 1300 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
f908037a 1301 err_kfree:
1da177e4 1302 kfree(data);
1da177e4
LT		 1303 return err;
1304}
1305
67712d01 1306static int lm85_remove(struct i2c_client *client)
1da177e4 1307{
943b0830 1308 struct lm85_data *data = i2c_get_clientdata(client);
1beeffe4 1309 hwmon_device_unregister(data->hwmon_dev);
0501a381 1310 sysfs_remove_group(&client->dev.kobj, &lm85_group);
6b9aad2d
JD		 1311 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1312 if (data->type == emc6d100)
1313 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
943b0830 1314 kfree(data);
1da177e4
LT		 1315 return 0;
1316}
1317
1318
d8d20615 1319static int lm85_read_value(struct i2c_client *client, u8 reg)
1da177e4
LT		 1320{
1321 int res;
1322
1323 /* What size location is it? */
1f44809a
JD		 1324 switch (reg) {
1325 case LM85_REG_FAN(0): /* Read WORD data */
1326 case LM85_REG_FAN(1):
1327 case LM85_REG_FAN(2):
1328 case LM85_REG_FAN(3):
1329 case LM85_REG_FAN_MIN(0):
1330 case LM85_REG_FAN_MIN(1):
1331 case LM85_REG_FAN_MIN(2):
1332 case LM85_REG_FAN_MIN(3):
1333 case LM85_REG_ALARM1: /* Read both bytes at once */
1334 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
1335 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
1336 break;
1da177e4
LT		 1337 default: /* Read BYTE data */
1338 res = i2c_smbus_read_byte_data(client, reg);
1f44809a 1339 break;
1da177e4
LT		 1340 }
1341
1f44809a 1342 return res;
1da177e4
LT		 1343}
1344
e89e22b2 1345static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
1da177e4 1346{
1f44809a
JD		 1347 switch (reg) {
1348 case LM85_REG_FAN(0): /* Write WORD data */
1349 case LM85_REG_FAN(1):
1350 case LM85_REG_FAN(2):
1351 case LM85_REG_FAN(3):
1352 case LM85_REG_FAN_MIN(0):
1353 case LM85_REG_FAN_MIN(1):
1354 case LM85_REG_FAN_MIN(2):
1355 case LM85_REG_FAN_MIN(3):
1da177e4 1356 /* NOTE: ALARM is read only, so not included here */
e89e22b2
JD		 1357 i2c_smbus_write_byte_data(client, reg, value & 0xff);
1358 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
1f44809a 1359 break;
1da177e4 1360 default: /* Write BYTE data */
e89e22b2 1361 i2c_smbus_write_byte_data(client, reg, value);
1f44809a 1362 break;
1da177e4 1363 }
1da177e4
LT		 1364}
1365
1da177e4
LT		 1366static struct lm85_data *lm85_update_device(struct device *dev)
1367{
1368 struct i2c_client *client = to_i2c_client(dev);
1369 struct lm85_data *data = i2c_get_clientdata(client);
1370 int i;
1371
9a61bf63 1372 mutex_lock(&data->update_lock);
1da177e4 1373
1f44809a
JD		 1374 if (!data->valid ||
1375 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
1da177e4
LT		 1376 /* Things that change quickly */
1377 dev_dbg(&client->dev, "Reading sensor values\n");
1f44809a 1378
1da177e4
LT		 1379 /* Have to read extended bits first to "freeze" the
1380 * more significant bits that are read later.
5a4d3ef3
JD		 1381 * There are 2 additional resolution bits per channel and we
1382 * have room for 4, so we shift them to the left.
1da177e4 1383 */
79b92f2b
DW		 1384 if (data->type == adm1027 || data->type == adt7463 ||
1385 data->type == adt7468) {
1da177e4
LT		 1386 int ext1 = lm85_read_value(client,
1387 ADM1027_REG_EXTEND_ADC1);
1388 int ext2 = lm85_read_value(client,
1389 ADM1027_REG_EXTEND_ADC2);
1390 int val = (ext1 << 8) + ext2;
1391
1f44809a
JD		 1392 for (i = 0; i <= 4; i++)
1393 data->in_ext[i] =
1394 ((val >> (i * 2)) & 0x03) << 2;
1da177e4 1395
1f44809a
JD		 1396 for (i = 0; i <= 2; i++)
1397 data->temp_ext[i] =
1398 (val >> ((i + 4) * 2)) & 0x0c;
1da177e4
LT		 1399 }
1400
9c516ef4
JD		 1401 data->vid = lm85_read_value(client, LM85_REG_VID);
1402
1403 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1404 data->in[i] =
1405 lm85_read_value(client, LM85_REG_IN(i));
e89e22b2
JD		 1406 data->fan[i] =
1407 lm85_read_value(client, LM85_REG_FAN(i));
1da177e4
LT		 1408 }
1409
79b92f2b
DW		 1410 if (!((data->type == adt7463 || data->type == adt7468) &&
1411 (data->vid & 0x80))) {
9c516ef4
JD		 1412 data->in[4] = lm85_read_value(client,
1413 LM85_REG_IN(4));
1414 }
1415
79b92f2b
DW		 1416 if (data->type == adt7468)
1417 data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
1418
1da177e4
LT		 1419 for (i = 0; i <= 2; ++i) {
1420 data->temp[i] =
1421 lm85_read_value(client, LM85_REG_TEMP(i));
1da177e4
LT		 1422 data->pwm[i] =
1423 lm85_read_value(client, LM85_REG_PWM(i));
79b92f2b
DW		 1424
1425 if (IS_ADT7468_OFF64(data))
1426 data->temp[i] -= 64;
1da177e4
LT		 1427 }
1428
1429 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1430
dd1ac538 1431 if (data->type == emc6d100) {
1da177e4
LT		 1432 /* Three more voltage sensors */
1433 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1434 data->in[i] = lm85_read_value(client,
1435 EMC6D100_REG_IN(i));
1da177e4
LT		 1436 }
1437 /* More alarm bits */
1f44809a
JD		 1438 data->alarms |= lm85_read_value(client,
1439 EMC6D100_REG_ALARM3) << 16;
1440 } else if (data->type == emc6d102) {
1da177e4
LT		 1441 /* Have to read LSB bits after the MSB ones because
1442 the reading of the MSB bits has frozen the
1443 LSBs (backward from the ADM1027).
1444 */
1445 int ext1 = lm85_read_value(client,
1446 EMC6D102_REG_EXTEND_ADC1);
1447 int ext2 = lm85_read_value(client,
1448 EMC6D102_REG_EXTEND_ADC2);
1449 int ext3 = lm85_read_value(client,
1450 EMC6D102_REG_EXTEND_ADC3);
1451 int ext4 = lm85_read_value(client,
1452 EMC6D102_REG_EXTEND_ADC4);
1453 data->in_ext[0] = ext3 & 0x0f;
1454 data->in_ext[1] = ext4 & 0x0f;
e89e22b2
JD		 1455 data->in_ext[2] = ext4 >> 4;
1456 data->in_ext[3] = ext3 >> 4;
1457 data->in_ext[4] = ext2 >> 4;
1da177e4
LT		 1458
1459 data->temp_ext[0] = ext1 & 0x0f;
1460 data->temp_ext[1] = ext2 & 0x0f;
e89e22b2 1461 data->temp_ext[2] = ext1 >> 4;
1da177e4
LT		 1462 }
1463
1f44809a
JD		 1464 data->last_reading = jiffies;
1465 } /* last_reading */
1da177e4 1466
1f44809a
JD		 1467 if (!data->valid ||
1468 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
1da177e4
LT		 1469 /* Things that don't change often */
1470 dev_dbg(&client->dev, "Reading config values\n");
1471
9c516ef4 1472 for (i = 0; i <= 3; ++i) {
1da177e4
LT		 1473 data->in_min[i] =
1474 lm85_read_value(client, LM85_REG_IN_MIN(i));
1475 data->in_max[i] =
1476 lm85_read_value(client, LM85_REG_IN_MAX(i));
e89e22b2
JD		 1477 data->fan_min[i] =
1478 lm85_read_value(client, LM85_REG_FAN_MIN(i));
1da177e4
LT		 1479 }
1480
79b92f2b
DW		 1481 if (!((data->type == adt7463 || data->type == adt7468) &&
1482 (data->vid & 0x80))) {
9c516ef4
JD		 1483 data->in_min[4] = lm85_read_value(client,
1484 LM85_REG_IN_MIN(4));
1485 data->in_max[4] = lm85_read_value(client,
1486 LM85_REG_IN_MAX(4));
1487 }
1488
1f44809a 1489 if (data->type == emc6d100) {
1da177e4 1490 for (i = 5; i <= 7; ++i) {
1f44809a
JD		 1491 data->in_min[i] = lm85_read_value(client,
1492 EMC6D100_REG_IN_MIN(i));
1493 data->in_max[i] = lm85_read_value(client,
1494 EMC6D100_REG_IN_MAX(i));
1da177e4
LT		 1495 }
1496 }
1497
1da177e4 1498 for (i = 0; i <= 2; ++i) {
e89e22b2
JD		 1499 int val;
1500
1da177e4
LT		 1501 data->temp_min[i] =
1502 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1503 data->temp_max[i] =
1504 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1da177e4 1505
1da177e4
LT		 1506 data->autofan[i].config =
1507 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1508 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
34e7dc6c 1509 data->pwm_freq[i] = val & 0x07;
e89e22b2 1510 data->zone[i].range = val >> 4;
1da177e4
LT		 1511 data->autofan[i].min_pwm =
1512 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1513 data->zone[i].limit =
1514 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1515 data->zone[i].critical =
1516 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
79b92f2b
DW		 1517
1518 if (IS_ADT7468_OFF64(data)) {
1519 data->temp_min[i] -= 64;
1520 data->temp_max[i] -= 64;
1521 data->zone[i].limit -= 64;
1522 data->zone[i].critical -= 64;
1523 }
1da177e4
LT		 1524 }
1525
1526 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1f44809a
JD		 1527 data->autofan[0].min_off = (i & 0x20) != 0;
1528 data->autofan[1].min_off = (i & 0x40) != 0;
1529 data->autofan[2].min_off = (i & 0x80) != 0;
1da177e4
LT		 1530
1531 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
e89e22b2 1532 data->zone[0].hyst = i >> 4;
1f44809a 1533 data->zone[1].hyst = i & 0x0f;
1da177e4
LT		 1534
1535 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
e89e22b2 1536 data->zone[2].hyst = i >> 4;
1da177e4 1537
1da177e4 1538 data->last_config = jiffies;
1f44809a 1539 } /* last_config */
1da177e4
LT		 1540
1541 data->valid = 1;
1542
9a61bf63 1543 mutex_unlock(&data->update_lock);
1da177e4
LT		 1544
1545 return data;
1546}
1547
1548
1549static int __init sm_lm85_init(void)
1550{
1551 return i2c_add_driver(&lm85_driver);
1552}
1553
1f44809a 1554static void __exit sm_lm85_exit(void)
1da177e4
LT		 1555{
1556 i2c_del_driver(&lm85_driver);
1557}
1558
1da177e4 1559MODULE_LICENSE("GPL");
1f44809a
JD		 1560MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1561 "Margit Schubert-While <margitsw@t-online.de>, "
e89e22b2 1562 "Justin Thiessen <jthiessen@penguincomputing.com>");
1da177e4
LT		 1563MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1564
1565module_init(sm_lm85_init);
1566module_exit(sm_lm85_exit);
Linux 6.x block layer and io_uring tree(s)