]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blob - drivers/hwmon/lm85.c
hwmon: Discard useless I2C driver IDs
[linux-2.6-omap-h63xx.git] / drivers / hwmon / lm85.c
1 /*
2     lm85.c - Part of lm_sensors, Linux kernel modules for hardware
3              monitoring
4     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> 
5     Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
6     Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
7     Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
8
9     Chip details at           <http://www.national.com/ds/LM/LM85.pdf>
10
11     This program is free software; you can redistribute it and/or modify
12     it under the terms of the GNU General Public License as published by
13     the Free Software Foundation; either version 2 of the License, or
14     (at your option) any later version.
15
16     This program is distributed in the hope that it will be useful,
17     but WITHOUT ANY WARRANTY; without even the implied warranty of
18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19     GNU General Public License for more details.
20
21     You should have received a copy of the GNU General Public License
22     along with this program; if not, write to the Free Software
23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/slab.h>
29 #include <linux/jiffies.h>
30 #include <linux/i2c.h>
31 #include <linux/hwmon.h>
32 #include <linux/hwmon-vid.h>
33 #include <linux/hwmon-sysfs.h>
34 #include <linux/err.h>
35 #include <linux/mutex.h>
36
37 /* Addresses to scan */
38 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
39
40 /* Insmod parameters */
41 I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
42
43 /* The LM85 registers */
44
45 #define LM85_REG_IN(nr)                 (0x20 + (nr))
46 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
47 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
48
49 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
50 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
51 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
52
53 /* Fan speeds are LSB, MSB (2 bytes) */
54 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
55 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
56
57 #define LM85_REG_PWM(nr)                (0x30 + (nr))
58
59 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
60
61 #define ADT7463_REG_TMIN_CTL1           0x36
62 #define ADT7463_REG_TMIN_CTL2           0x37
63
64 #define LM85_REG_DEVICE                 0x3d
65 #define LM85_REG_COMPANY                0x3e
66 #define LM85_REG_VERSTEP                0x3f
67 /* These are the recognized values for the above regs */
68 #define LM85_DEVICE_ADX                 0x27
69 #define LM85_COMPANY_NATIONAL           0x01
70 #define LM85_COMPANY_ANALOG_DEV         0x41
71 #define LM85_COMPANY_SMSC               0x5c
72 #define LM85_VERSTEP_VMASK              0xf0
73 #define LM85_VERSTEP_GENERIC            0x60
74 #define LM85_VERSTEP_LM85C              0x60
75 #define LM85_VERSTEP_LM85B              0x62
76 #define LM85_VERSTEP_ADM1027            0x60
77 #define LM85_VERSTEP_ADT7463            0x62
78 #define LM85_VERSTEP_ADT7463C           0x6A
79 #define LM85_VERSTEP_EMC6D100_A0        0x60
80 #define LM85_VERSTEP_EMC6D100_A1        0x61
81 #define LM85_VERSTEP_EMC6D102           0x65
82
83 #define LM85_REG_CONFIG                 0x40
84
85 #define LM85_REG_ALARM1                 0x41
86 #define LM85_REG_ALARM2                 0x42
87
88 #define LM85_REG_VID                    0x43
89
90 /* Automated FAN control */
91 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
92 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
93 #define LM85_REG_AFAN_SPIKE1            0x62
94 #define LM85_REG_AFAN_SPIKE2            0x63
95 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
96 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
97 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
98 #define LM85_REG_AFAN_HYST1             0x6d
99 #define LM85_REG_AFAN_HYST2             0x6e
100
101 #define LM85_REG_TACH_MODE              0x74
102 #define LM85_REG_SPINUP_CTL             0x75
103
104 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
105 #define ADM1027_REG_CONFIG2             0x73
106 #define ADM1027_REG_INTMASK1            0x74
107 #define ADM1027_REG_INTMASK2            0x75
108 #define ADM1027_REG_EXTEND_ADC1         0x76
109 #define ADM1027_REG_EXTEND_ADC2         0x77
110 #define ADM1027_REG_CONFIG3             0x78
111 #define ADM1027_REG_FAN_PPR             0x7b
112
113 #define ADT7463_REG_THERM               0x79
114 #define ADT7463_REG_THERM_LIMIT         0x7A
115
116 #define EMC6D100_REG_ALARM3             0x7d
117 /* IN5, IN6 and IN7 */
118 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
119 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
120 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
121 #define EMC6D102_REG_EXTEND_ADC1        0x85
122 #define EMC6D102_REG_EXTEND_ADC2        0x86
123 #define EMC6D102_REG_EXTEND_ADC3        0x87
124 #define EMC6D102_REG_EXTEND_ADC4        0x88
125
126
127 /* Conversions. Rounding and limit checking is only done on the TO_REG 
128    variants. Note that you should be a bit careful with which arguments
129    these macros are called: arguments may be evaluated more than once.
130  */
131
132 /* IN are scaled acording to built-in resistors */
133 static int lm85_scaling[] = {  /* .001 Volts */
134                 2500, 2250, 3300, 5000, 12000,
135                 3300, 1500, 1800 /*EMC6D100*/
136         };
137 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
138
139 #define INS_TO_REG(n,val)       \
140                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
141
142 #define INSEXT_FROM_REG(n,val,ext)      \
143                 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
144
145 #define INS_FROM_REG(n,val)     SCALE((val), 192, lm85_scaling[n])
146
147 /* FAN speed is measured using 90kHz clock */
148 static inline u16 FAN_TO_REG(unsigned long val)
149 {
150         if (!val)
151                 return 0xffff;
152         return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
153 }
154 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
155
156 /* Temperature is reported in .001 degC increments */
157 #define TEMP_TO_REG(val)        \
158                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
159 #define TEMPEXT_FROM_REG(val,ext)       \
160                 SCALE(((val) << 4) + (ext), 16, 1000)
161 #define TEMP_FROM_REG(val)      ((val) * 1000)
162
163 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
164 #define PWM_FROM_REG(val)               (val)
165
166
167 /* ZONEs have the following parameters:
168  *    Limit (low) temp,           1. degC
169  *    Hysteresis (below limit),   1. degC (0-15)
170  *    Range of speed control,     .1 degC (2-80)
171  *    Critical (high) temp,       1. degC
172  *
173  * FAN PWMs have the following parameters:
174  *    Reference Zone,                 1, 2, 3, etc.
175  *    Spinup time,                    .05 sec
176  *    PWM value at limit/low temp,    1 count
177  *    PWM Frequency,                  1. Hz
178  *    PWM is Min or OFF below limit,  flag
179  *    Invert PWM output,              flag
180  *
181  * Some chips filter the temp, others the fan.
182  *    Filter constant (or disabled)   .1 seconds
183  */
184
185 /* These are the zone temperature range encodings in .001 degree C */
186 static int lm85_range_map[] = {   
187                 2000,  2500,  3300,  4000,  5000,  6600,
188                 8000, 10000, 13300, 16000, 20000, 26600,
189                 32000, 40000, 53300, 80000
190         };
191 static int RANGE_TO_REG( int range )
192 {
193         int i;
194
195         if ( range < lm85_range_map[0] ) { 
196                 return 0 ;
197         } else if ( range > lm85_range_map[15] ) {
198                 return 15 ;
199         } else {  /* find closest match */
200                 for ( i = 14 ; i >= 0 ; --i ) {
201                         if ( range > lm85_range_map[i] ) { /* range bracketed */
202                                 if ((lm85_range_map[i+1] - range) < 
203                                         (range - lm85_range_map[i])) {
204                                         i++;
205                                         break;
206                                 }
207                                 break;
208                         }
209                 }
210         }
211         return( i & 0x0f );
212 }
213 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
214
215 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
216  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
217  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
218  *       is ignored, or set to 0.
219  */
220 /* These are the PWM frequency encodings */
221 static int lm85_freq_map[] = { /* .1 Hz */
222                 100, 150, 230, 300, 380, 470, 620, 940
223         };
224 static int FREQ_TO_REG( int freq )
225 {
226         int i;
227
228         if( freq >= lm85_freq_map[7] ) { return 7 ; }
229         for( i = 0 ; i < 7 ; ++i )
230                 if( freq <= lm85_freq_map[i] )
231                         break ;
232         return( i & 0x07 );
233 }
234 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
235
236 /* Since we can't use strings, I'm abusing these numbers
237  *   to stand in for the following meanings:
238  *      1 -- PWM responds to Zone 1
239  *      2 -- PWM responds to Zone 2
240  *      3 -- PWM responds to Zone 3
241  *     23 -- PWM responds to the higher temp of Zone 2 or 3
242  *    123 -- PWM responds to highest of Zone 1, 2, or 3
243  *      0 -- PWM is always at 0% (ie, off)
244  *     -1 -- PWM is always at 100%
245  *     -2 -- PWM responds to manual control
246  */
247
248 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
249 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
250
251 static int ZONE_TO_REG( int zone )
252 {
253         int i;
254
255         for( i = 0 ; i <= 7 ; ++i )
256                 if( zone == lm85_zone_map[i] )
257                         break ;
258         if( i > 7 )   /* Not found. */
259                 i = 3;  /* Always 100% */
260         return( (i & 0x07)<<5 );
261 }
262
263 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
264 #define HYST_FROM_REG(val) ((val)*1000)
265
266 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
267 #define OFFSET_FROM_REG(val) ((val)*25)
268
269 #define PPR_MASK(fan) (0x03<<(fan *2))
270 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
271 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
272
273 /* Chip sampling rates
274  *
275  * Some sensors are not updated more frequently than once per second
276  *    so it doesn't make sense to read them more often than that.
277  *    We cache the results and return the saved data if the driver
278  *    is called again before a second has elapsed.
279  *
280  * Also, there is significant configuration data for this chip
281  *    given the automatic PWM fan control that is possible.  There
282  *    are about 47 bytes of config data to only 22 bytes of actual
283  *    readings.  So, we keep the config data up to date in the cache
284  *    when it is written and only sample it once every 1 *minute*
285  */
286 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
287 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
288
289 /* LM85 can automatically adjust fan speeds based on temperature
290  * This structure encapsulates an entire Zone config.  There are
291  * three zones (one for each temperature input) on the lm85
292  */
293 struct lm85_zone {
294         s8 limit;       /* Low temp limit */
295         u8 hyst;        /* Low limit hysteresis. (0-15) */
296         u8 range;       /* Temp range, encoded */
297         s8 critical;    /* "All fans ON" temp limit */
298         u8 off_desired; /* Actual "off" temperature specified.  Preserved 
299                          * to prevent "drift" as other autofan control
300                          * values change.
301                          */
302         u8 max_desired; /* Actual "max" temperature specified.  Preserved 
303                          * to prevent "drift" as other autofan control
304                          * values change.
305                          */
306 };
307
308 struct lm85_autofan {
309         u8 config;      /* Register value */
310         u8 freq;        /* PWM frequency, encoded */
311         u8 min_pwm;     /* Minimum PWM value, encoded */
312         u8 min_off;     /* Min PWM or OFF below "limit", flag */
313 };
314
315 /* For each registered chip, we need to keep some data in memory.
316    The structure is dynamically allocated. */
317 struct lm85_data {
318         struct i2c_client client;
319         struct device *hwmon_dev;
320         enum chips type;
321
322         struct mutex update_lock;
323         int valid;              /* !=0 if following fields are valid */
324         unsigned long last_reading;     /* In jiffies */
325         unsigned long last_config;      /* In jiffies */
326
327         u8 in[8];               /* Register value */
328         u8 in_max[8];           /* Register value */
329         u8 in_min[8];           /* Register value */
330         s8 temp[3];             /* Register value */
331         s8 temp_min[3];         /* Register value */
332         s8 temp_max[3];         /* Register value */
333         s8 temp_offset[3];      /* Register value */
334         u16 fan[4];             /* Register value */
335         u16 fan_min[4];         /* Register value */
336         u8 pwm[3];              /* Register value */
337         u8 spinup_ctl;          /* Register encoding, combined */
338         u8 tach_mode;           /* Register encoding, combined */
339         u8 temp_ext[3];         /* Decoded values */
340         u8 in_ext[8];           /* Decoded values */
341         u8 fan_ppr;             /* Register value */
342         u8 smooth[3];           /* Register encoding */
343         u8 vid;                 /* Register value */
344         u8 vrm;                 /* VRM version */
345         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
346         u8 oppoint[3];          /* Register value */
347         u16 tmin_ctl;           /* Register value */
348         unsigned long therm_total; /* Cummulative therm count */
349         u8 therm_limit;         /* Register value */
350         u32 alarms;             /* Register encoding, combined */
351         struct lm85_autofan autofan[3];
352         struct lm85_zone zone[3];
353 };
354
355 static int lm85_attach_adapter(struct i2c_adapter *adapter);
356 static int lm85_detect(struct i2c_adapter *adapter, int address,
357                         int kind);
358 static int lm85_detach_client(struct i2c_client *client);
359
360 static int lm85_read_value(struct i2c_client *client, u8 reg);
361 static int lm85_write_value(struct i2c_client *client, u8 reg, int value);
362 static struct lm85_data *lm85_update_device(struct device *dev);
363 static void lm85_init_client(struct i2c_client *client);
364
365
366 static struct i2c_driver lm85_driver = {
367         .driver = {
368                 .name   = "lm85",
369         },
370         .attach_adapter = lm85_attach_adapter,
371         .detach_client  = lm85_detach_client,
372 };
373
374
375 /* 4 Fans */
376 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
377                 char *buf)
378 {
379         int nr = to_sensor_dev_attr(attr)->index;
380         struct lm85_data *data = lm85_update_device(dev);
381         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
382 }
383
384 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
385                 char *buf)
386 {
387         int nr = to_sensor_dev_attr(attr)->index;
388         struct lm85_data *data = lm85_update_device(dev);
389         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
390 }
391
392 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
393                 const char *buf, size_t count)
394 {
395         int nr = to_sensor_dev_attr(attr)->index;
396         struct i2c_client *client = to_i2c_client(dev);
397         struct lm85_data *data = i2c_get_clientdata(client);
398         unsigned long val = simple_strtoul(buf, NULL, 10);
399
400         mutex_lock(&data->update_lock);
401         data->fan_min[nr] = FAN_TO_REG(val);
402         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
403         mutex_unlock(&data->update_lock);
404         return count;
405 }
406
407 #define show_fan_offset(offset)                                         \
408 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,                 \
409                 show_fan, NULL, offset - 1);                            \
410 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,         \
411                 show_fan_min, set_fan_min, offset - 1)
412
413 show_fan_offset(1);
414 show_fan_offset(2);
415 show_fan_offset(3);
416 show_fan_offset(4);
417
418 /* vid, vrm, alarms */
419
420 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
421 {
422         struct lm85_data *data = lm85_update_device(dev);
423         int vid;
424
425         if (data->type == adt7463 && (data->vid & 0x80)) {
426                 /* 6-pin VID (VRM 10) */
427                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
428         } else {
429                 /* 5-pin VID (VRM 9) */
430                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
431         }
432
433         return sprintf(buf, "%d\n", vid);
434 }
435
436 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
437
438 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
439 {
440         struct lm85_data *data = dev_get_drvdata(dev);
441         return sprintf(buf, "%ld\n", (long) data->vrm);
442 }
443
444 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
445 {
446         struct i2c_client *client = to_i2c_client(dev);
447         struct lm85_data *data = i2c_get_clientdata(client);
448         u32 val;
449
450         val = simple_strtoul(buf, NULL, 10);
451         data->vrm = val;
452         return count;
453 }
454
455 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
456
457 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
458 {
459         struct lm85_data *data = lm85_update_device(dev);
460         return sprintf(buf, "%u\n", data->alarms);
461 }
462
463 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
464
465 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
466                 char *buf)
467 {
468         int nr = to_sensor_dev_attr(attr)->index;
469         struct lm85_data *data = lm85_update_device(dev);
470         return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
471 }
472
473 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
474 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
475 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
476 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
477 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
478 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
479 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
480 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
481 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
482 static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
483 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
484 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
485 static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
486 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
487 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
488 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
489 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
490
491 /* pwm */
492
493 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
494                 char *buf)
495 {
496         int nr = to_sensor_dev_attr(attr)->index;
497         struct lm85_data *data = lm85_update_device(dev);
498         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
499 }
500
501 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
502                 const char *buf, size_t count)
503 {
504         int nr = to_sensor_dev_attr(attr)->index;
505         struct i2c_client *client = to_i2c_client(dev);
506         struct lm85_data *data = i2c_get_clientdata(client);
507         long val = simple_strtol(buf, NULL, 10);
508
509         mutex_lock(&data->update_lock);
510         data->pwm[nr] = PWM_TO_REG(val);
511         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
512         mutex_unlock(&data->update_lock);
513         return count;
514 }
515
516 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
517                 *attr, char *buf)
518 {
519         int nr = to_sensor_dev_attr(attr)->index;
520         struct lm85_data *data = lm85_update_device(dev);
521         int pwm_zone, enable;
522
523         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
524         switch (pwm_zone) {
525         case -1:        /* PWM is always at 100% */
526                 enable = 0;
527                 break;
528         case 0:         /* PWM is always at 0% */
529         case -2:        /* PWM responds to manual control */
530                 enable = 1;
531                 break;
532         default:        /* PWM in automatic mode */
533                 enable = 2;
534         }
535         return sprintf(buf, "%d\n", enable);
536 }
537
538 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
539                 *attr, const char *buf, size_t count)
540 {
541         int nr = to_sensor_dev_attr(attr)->index;
542         struct i2c_client *client = to_i2c_client(dev);
543         struct lm85_data *data = i2c_get_clientdata(client);
544         long val = simple_strtol(buf, NULL, 10);
545         u8 config;
546
547         switch (val) {
548         case 0:
549                 config = 3;
550                 break;
551         case 1:
552                 config = 7;
553                 break;
554         case 2:
555                 /* Here we have to choose arbitrarily one of the 5 possible
556                    configurations; I go for the safest */
557                 config = 6;
558                 break;
559         default:
560                 return -EINVAL;
561         }
562
563         mutex_lock(&data->update_lock);
564         data->autofan[nr].config = lm85_read_value(client,
565                 LM85_REG_AFAN_CONFIG(nr));
566         data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
567                 | (config << 5);
568         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
569                 data->autofan[nr].config);
570         mutex_unlock(&data->update_lock);
571         return count;
572 }
573
574 #define show_pwm_reg(offset)                                            \
575 static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,               \
576                 show_pwm, set_pwm, offset - 1);                         \
577 static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,      \
578                 show_pwm_enable, set_pwm_enable, offset - 1)
579
580 show_pwm_reg(1);
581 show_pwm_reg(2);
582 show_pwm_reg(3);
583
584 /* Voltages */
585
586 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
587                 char *buf)
588 {
589         int nr = to_sensor_dev_attr(attr)->index;
590         struct lm85_data *data = lm85_update_device(dev);
591         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
592                                                      data->in[nr],
593                                                      data->in_ext[nr]));
594 }
595
596 static ssize_t show_in_min(struct device *dev,  struct device_attribute *attr,
597                 char *buf)
598 {
599         int nr = to_sensor_dev_attr(attr)->index;
600         struct lm85_data *data = lm85_update_device(dev);
601         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
602 }
603
604 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
605                 const char *buf, size_t count)
606 {
607         int nr = to_sensor_dev_attr(attr)->index;
608         struct i2c_client *client = to_i2c_client(dev);
609         struct lm85_data *data = i2c_get_clientdata(client);
610         long val = simple_strtol(buf, NULL, 10);
611
612         mutex_lock(&data->update_lock);
613         data->in_min[nr] = INS_TO_REG(nr, val);
614         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
615         mutex_unlock(&data->update_lock);
616         return count;
617 }
618
619 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
620                 char *buf)
621 {
622         int nr = to_sensor_dev_attr(attr)->index;
623         struct lm85_data *data = lm85_update_device(dev);
624         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
625 }
626
627 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
628                 const char *buf, size_t count)
629 {
630         int nr = to_sensor_dev_attr(attr)->index;
631         struct i2c_client *client = to_i2c_client(dev);
632         struct lm85_data *data = i2c_get_clientdata(client);
633         long val = simple_strtol(buf, NULL, 10);
634
635         mutex_lock(&data->update_lock);
636         data->in_max[nr] = INS_TO_REG(nr, val);
637         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
638         mutex_unlock(&data->update_lock);
639         return count;
640 }
641
642 #define show_in_reg(offset)                                             \
643 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,                  \
644                 show_in, NULL, offset);                                 \
645 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,          \
646                 show_in_min, set_in_min, offset);                       \
647 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,          \
648                 show_in_max, set_in_max, offset)
649
650 show_in_reg(0);
651 show_in_reg(1);
652 show_in_reg(2);
653 show_in_reg(3);
654 show_in_reg(4);
655 show_in_reg(5);
656 show_in_reg(6);
657 show_in_reg(7);
658
659 /* Temps */
660
661 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
662                 char *buf)
663 {
664         int nr = to_sensor_dev_attr(attr)->index;
665         struct lm85_data *data = lm85_update_device(dev);
666         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
667                                                     data->temp_ext[nr]));
668 }
669
670 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
671                 char *buf)
672 {
673         int nr = to_sensor_dev_attr(attr)->index;
674         struct lm85_data *data = lm85_update_device(dev);
675         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
676 }
677
678 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
679                 const char *buf, size_t count)
680 {
681         int nr = to_sensor_dev_attr(attr)->index;
682         struct i2c_client *client = to_i2c_client(dev);
683         struct lm85_data *data = i2c_get_clientdata(client);
684         long val = simple_strtol(buf, NULL, 10);
685
686         mutex_lock(&data->update_lock);
687         data->temp_min[nr] = TEMP_TO_REG(val);
688         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
689         mutex_unlock(&data->update_lock);
690         return count;
691 }
692
693 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
694                 char *buf)
695 {
696         int nr = to_sensor_dev_attr(attr)->index;
697         struct lm85_data *data = lm85_update_device(dev);
698         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
699 }
700
701 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
702                 const char *buf, size_t count)
703 {
704         int nr = to_sensor_dev_attr(attr)->index;
705         struct i2c_client *client = to_i2c_client(dev);
706         struct lm85_data *data = i2c_get_clientdata(client);
707         long val = simple_strtol(buf, NULL, 10);        
708
709         mutex_lock(&data->update_lock);
710         data->temp_max[nr] = TEMP_TO_REG(val);
711         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
712         mutex_unlock(&data->update_lock);
713         return count;
714 }
715
716 #define show_temp_reg(offset)                                           \
717 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,                \
718                 show_temp, NULL, offset - 1);                           \
719 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,        \
720                 show_temp_min, set_temp_min, offset - 1);               \
721 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,        \
722                 show_temp_max, set_temp_max, offset - 1);
723
724 show_temp_reg(1);
725 show_temp_reg(2);
726 show_temp_reg(3);
727
728
729 /* Automatic PWM control */
730
731 static ssize_t show_pwm_auto_channels(struct device *dev,
732                 struct device_attribute *attr, char *buf)
733 {
734         int nr = to_sensor_dev_attr(attr)->index;
735         struct lm85_data *data = lm85_update_device(dev);
736         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
737 }
738
739 static ssize_t set_pwm_auto_channels(struct device *dev,
740                 struct device_attribute *attr, const char *buf, size_t count)
741 {
742         int nr = to_sensor_dev_attr(attr)->index;
743         struct i2c_client *client = to_i2c_client(dev);
744         struct lm85_data *data = i2c_get_clientdata(client);
745         long val = simple_strtol(buf, NULL, 10);   
746
747         mutex_lock(&data->update_lock);
748         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
749                 | ZONE_TO_REG(val) ;
750         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
751                 data->autofan[nr].config);
752         mutex_unlock(&data->update_lock);
753         return count;
754 }
755
756 static ssize_t show_pwm_auto_pwm_min(struct device *dev,
757                 struct device_attribute *attr, char *buf)
758 {
759         int nr = to_sensor_dev_attr(attr)->index;
760         struct lm85_data *data = lm85_update_device(dev);
761         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
762 }
763
764 static ssize_t set_pwm_auto_pwm_min(struct device *dev,
765                 struct device_attribute *attr, const char *buf, size_t count)
766 {
767         int nr = to_sensor_dev_attr(attr)->index;
768         struct i2c_client *client = to_i2c_client(dev);
769         struct lm85_data *data = i2c_get_clientdata(client);
770         long val = simple_strtol(buf, NULL, 10);
771
772         mutex_lock(&data->update_lock);
773         data->autofan[nr].min_pwm = PWM_TO_REG(val);
774         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
775                 data->autofan[nr].min_pwm);
776         mutex_unlock(&data->update_lock);
777         return count;
778 }
779
780 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
781                 struct device_attribute *attr, char *buf)
782 {
783         int nr = to_sensor_dev_attr(attr)->index;
784         struct lm85_data *data = lm85_update_device(dev);
785         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
786 }
787
788 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
789                 struct device_attribute *attr, const char *buf, size_t count)
790 {
791         int nr = to_sensor_dev_attr(attr)->index;
792         struct i2c_client *client = to_i2c_client(dev);
793         struct lm85_data *data = i2c_get_clientdata(client);
794         long val = simple_strtol(buf, NULL, 10);
795
796         mutex_lock(&data->update_lock);
797         data->autofan[nr].min_off = val;
798         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
799                 | data->syncpwm3
800                 | (data->autofan[0].min_off ? 0x20 : 0)
801                 | (data->autofan[1].min_off ? 0x40 : 0)
802                 | (data->autofan[2].min_off ? 0x80 : 0)
803         );
804         mutex_unlock(&data->update_lock);
805         return count;
806 }
807
808 static ssize_t show_pwm_auto_pwm_freq(struct device *dev,
809                 struct device_attribute *attr, char *buf)
810 {
811         int nr = to_sensor_dev_attr(attr)->index;
812         struct lm85_data *data = lm85_update_device(dev);
813         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
814 }
815
816 static ssize_t set_pwm_auto_pwm_freq(struct device *dev,
817                 struct device_attribute *attr, const char *buf, size_t count)
818 {
819         int nr = to_sensor_dev_attr(attr)->index;
820         struct i2c_client *client = to_i2c_client(dev);
821         struct lm85_data *data = i2c_get_clientdata(client);
822         long val = simple_strtol(buf, NULL, 10);
823
824         mutex_lock(&data->update_lock);
825         data->autofan[nr].freq = FREQ_TO_REG(val);
826         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
827                 (data->zone[nr].range << 4)
828                 | data->autofan[nr].freq
829         ); 
830         mutex_unlock(&data->update_lock);
831         return count;
832 }
833
834 #define pwm_auto(offset)                                                \
835 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels,                  \
836                 S_IRUGO | S_IWUSR, show_pwm_auto_channels,              \
837                 set_pwm_auto_channels, offset - 1);                     \
838 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min,                   \
839                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min,               \
840                 set_pwm_auto_pwm_min, offset - 1);                      \
841 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl,                \
842                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl,            \
843                 set_pwm_auto_pwm_minctl, offset - 1);                   \
844 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq,                  \
845                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq,              \
846                 set_pwm_auto_pwm_freq, offset - 1);
847
848 pwm_auto(1);
849 pwm_auto(2);
850 pwm_auto(3);
851
852 /* Temperature settings for automatic PWM control */
853
854 static ssize_t show_temp_auto_temp_off(struct device *dev,
855                 struct device_attribute *attr, char *buf)
856 {
857         int nr = to_sensor_dev_attr(attr)->index;
858         struct lm85_data *data = lm85_update_device(dev);
859         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
860                 HYST_FROM_REG(data->zone[nr].hyst));
861 }
862
863 static ssize_t set_temp_auto_temp_off(struct device *dev,
864                 struct device_attribute *attr, const char *buf, size_t count)
865 {
866         int nr = to_sensor_dev_attr(attr)->index;
867         struct i2c_client *client = to_i2c_client(dev);
868         struct lm85_data *data = i2c_get_clientdata(client);
869         int min;
870         long val = simple_strtol(buf, NULL, 10);
871
872         mutex_lock(&data->update_lock);
873         min = TEMP_FROM_REG(data->zone[nr].limit);
874         data->zone[nr].off_desired = TEMP_TO_REG(val);
875         data->zone[nr].hyst = HYST_TO_REG(min - val);
876         if ( nr == 0 || nr == 1 ) {
877                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
878                         (data->zone[0].hyst << 4)
879                         | data->zone[1].hyst
880                         );
881         } else {
882                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
883                         (data->zone[2].hyst << 4)
884                 );
885         }
886         mutex_unlock(&data->update_lock);
887         return count;
888 }
889
890 static ssize_t show_temp_auto_temp_min(struct device *dev,
891                 struct device_attribute *attr, char *buf)
892 {
893         int nr = to_sensor_dev_attr(attr)->index;
894         struct lm85_data *data = lm85_update_device(dev);
895         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
896 }
897
898 static ssize_t set_temp_auto_temp_min(struct device *dev,
899                 struct device_attribute *attr, const char *buf, size_t count)
900 {
901         int nr = to_sensor_dev_attr(attr)->index;
902         struct i2c_client *client = to_i2c_client(dev);
903         struct lm85_data *data = i2c_get_clientdata(client);
904         long val = simple_strtol(buf, NULL, 10);
905
906         mutex_lock(&data->update_lock);
907         data->zone[nr].limit = TEMP_TO_REG(val);
908         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
909                 data->zone[nr].limit);
910
911 /* Update temp_auto_max and temp_auto_range */
912         data->zone[nr].range = RANGE_TO_REG(
913                 TEMP_FROM_REG(data->zone[nr].max_desired) -
914                 TEMP_FROM_REG(data->zone[nr].limit));
915         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
916                 ((data->zone[nr].range & 0x0f) << 4)
917                 | (data->autofan[nr].freq & 0x07));
918
919 /* Update temp_auto_hyst and temp_auto_off */
920         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
921                 data->zone[nr].limit) - TEMP_FROM_REG(
922                 data->zone[nr].off_desired));
923         if ( nr == 0 || nr == 1 ) {
924                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
925                         (data->zone[0].hyst << 4)
926                         | data->zone[1].hyst
927                         );
928         } else {
929                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
930                         (data->zone[2].hyst << 4)
931                 );
932         }
933         mutex_unlock(&data->update_lock);
934         return count;
935 }
936
937 static ssize_t show_temp_auto_temp_max(struct device *dev,
938                 struct device_attribute *attr, char *buf)
939 {
940         int nr = to_sensor_dev_attr(attr)->index;
941         struct lm85_data *data = lm85_update_device(dev);
942         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
943                 RANGE_FROM_REG(data->zone[nr].range));
944 }
945
946 static ssize_t set_temp_auto_temp_max(struct device *dev,
947                 struct device_attribute *attr, const char *buf, size_t count)
948 {
949         int nr = to_sensor_dev_attr(attr)->index;
950         struct i2c_client *client = to_i2c_client(dev);
951         struct lm85_data *data = i2c_get_clientdata(client);
952         int min;
953         long val = simple_strtol(buf, NULL, 10);
954
955         mutex_lock(&data->update_lock);
956         min = TEMP_FROM_REG(data->zone[nr].limit);
957         data->zone[nr].max_desired = TEMP_TO_REG(val);
958         data->zone[nr].range = RANGE_TO_REG(
959                 val - min);
960         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
961                 ((data->zone[nr].range & 0x0f) << 4)
962                 | (data->autofan[nr].freq & 0x07));
963         mutex_unlock(&data->update_lock);
964         return count;
965 }
966
967 static ssize_t show_temp_auto_temp_crit(struct device *dev,
968                 struct device_attribute *attr, char *buf)
969 {
970         int nr = to_sensor_dev_attr(attr)->index;
971         struct lm85_data *data = lm85_update_device(dev);
972         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
973 }
974
975 static ssize_t set_temp_auto_temp_crit(struct device *dev,
976                 struct device_attribute *attr,const char *buf, size_t count)
977 {
978         int nr = to_sensor_dev_attr(attr)->index;
979         struct i2c_client *client = to_i2c_client(dev);
980         struct lm85_data *data = i2c_get_clientdata(client);
981         long val = simple_strtol(buf, NULL, 10);
982
983         mutex_lock(&data->update_lock);
984         data->zone[nr].critical = TEMP_TO_REG(val);
985         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
986                 data->zone[nr].critical);
987         mutex_unlock(&data->update_lock);
988         return count;
989 }
990
991 #define temp_auto(offset)                                               \
992 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off,                 \
993                 S_IRUGO | S_IWUSR, show_temp_auto_temp_off,             \
994                 set_temp_auto_temp_off, offset - 1);                    \
995 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min,                 \
996                 S_IRUGO | S_IWUSR, show_temp_auto_temp_min,             \
997                 set_temp_auto_temp_min, offset - 1);                    \
998 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max,                 \
999                 S_IRUGO | S_IWUSR, show_temp_auto_temp_max,             \
1000                 set_temp_auto_temp_max, offset - 1);                    \
1001 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit,                \
1002                 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit,            \
1003                 set_temp_auto_temp_crit, offset - 1);
1004
1005 temp_auto(1);
1006 temp_auto(2);
1007 temp_auto(3);
1008
1009 static int lm85_attach_adapter(struct i2c_adapter *adapter)
1010 {
1011         if (!(adapter->class & I2C_CLASS_HWMON))
1012                 return 0;
1013         return i2c_probe(adapter, &addr_data, lm85_detect);
1014 }
1015
1016 static struct attribute *lm85_attributes[] = {
1017         &sensor_dev_attr_fan1_input.dev_attr.attr,
1018         &sensor_dev_attr_fan2_input.dev_attr.attr,
1019         &sensor_dev_attr_fan3_input.dev_attr.attr,
1020         &sensor_dev_attr_fan4_input.dev_attr.attr,
1021         &sensor_dev_attr_fan1_min.dev_attr.attr,
1022         &sensor_dev_attr_fan2_min.dev_attr.attr,
1023         &sensor_dev_attr_fan3_min.dev_attr.attr,
1024         &sensor_dev_attr_fan4_min.dev_attr.attr,
1025         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1026         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1027         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1028         &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1029
1030         &sensor_dev_attr_pwm1.dev_attr.attr,
1031         &sensor_dev_attr_pwm2.dev_attr.attr,
1032         &sensor_dev_attr_pwm3.dev_attr.attr,
1033         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1034         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1035         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1036
1037         &sensor_dev_attr_in0_input.dev_attr.attr,
1038         &sensor_dev_attr_in1_input.dev_attr.attr,
1039         &sensor_dev_attr_in2_input.dev_attr.attr,
1040         &sensor_dev_attr_in3_input.dev_attr.attr,
1041         &sensor_dev_attr_in0_min.dev_attr.attr,
1042         &sensor_dev_attr_in1_min.dev_attr.attr,
1043         &sensor_dev_attr_in2_min.dev_attr.attr,
1044         &sensor_dev_attr_in3_min.dev_attr.attr,
1045         &sensor_dev_attr_in0_max.dev_attr.attr,
1046         &sensor_dev_attr_in1_max.dev_attr.attr,
1047         &sensor_dev_attr_in2_max.dev_attr.attr,
1048         &sensor_dev_attr_in3_max.dev_attr.attr,
1049         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1050         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1051         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1052         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1053
1054         &sensor_dev_attr_temp1_input.dev_attr.attr,
1055         &sensor_dev_attr_temp2_input.dev_attr.attr,
1056         &sensor_dev_attr_temp3_input.dev_attr.attr,
1057         &sensor_dev_attr_temp1_min.dev_attr.attr,
1058         &sensor_dev_attr_temp2_min.dev_attr.attr,
1059         &sensor_dev_attr_temp3_min.dev_attr.attr,
1060         &sensor_dev_attr_temp1_max.dev_attr.attr,
1061         &sensor_dev_attr_temp2_max.dev_attr.attr,
1062         &sensor_dev_attr_temp3_max.dev_attr.attr,
1063         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1064         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1065         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1066         &sensor_dev_attr_temp1_fault.dev_attr.attr,
1067         &sensor_dev_attr_temp3_fault.dev_attr.attr,
1068
1069         &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1070         &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1071         &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1072         &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1073         &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1074         &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1075         &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1076         &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1077         &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
1078         &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr,
1079         &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr,
1080         &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr,
1081
1082         &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1083         &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1084         &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1085         &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1086         &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1087         &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1088         &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1089         &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1090         &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1091         &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1092         &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1093         &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1094
1095         &dev_attr_vrm.attr,
1096         &dev_attr_cpu0_vid.attr,
1097         &dev_attr_alarms.attr,
1098         NULL
1099 };
1100
1101 static const struct attribute_group lm85_group = {
1102         .attrs = lm85_attributes,
1103 };
1104
1105 static struct attribute *lm85_attributes_in4[] = {
1106         &sensor_dev_attr_in4_input.dev_attr.attr,
1107         &sensor_dev_attr_in4_min.dev_attr.attr,
1108         &sensor_dev_attr_in4_max.dev_attr.attr,
1109         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1110         NULL
1111 };
1112
1113 static const struct attribute_group lm85_group_in4 = {
1114         .attrs = lm85_attributes_in4,
1115 };
1116
1117 static struct attribute *lm85_attributes_in567[] = {
1118         &sensor_dev_attr_in5_input.dev_attr.attr,
1119         &sensor_dev_attr_in6_input.dev_attr.attr,
1120         &sensor_dev_attr_in7_input.dev_attr.attr,
1121         &sensor_dev_attr_in5_min.dev_attr.attr,
1122         &sensor_dev_attr_in6_min.dev_attr.attr,
1123         &sensor_dev_attr_in7_min.dev_attr.attr,
1124         &sensor_dev_attr_in5_max.dev_attr.attr,
1125         &sensor_dev_attr_in6_max.dev_attr.attr,
1126         &sensor_dev_attr_in7_max.dev_attr.attr,
1127         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1128         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1129         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1130         NULL
1131 };
1132
1133 static const struct attribute_group lm85_group_in567 = {
1134         .attrs = lm85_attributes_in567,
1135 };
1136
1137 static int lm85_detect(struct i2c_adapter *adapter, int address,
1138                 int kind)
1139 {
1140         int company, verstep ;
1141         struct i2c_client *new_client = NULL;
1142         struct lm85_data *data;
1143         int err = 0;
1144         const char *type_name = "";
1145
1146         if (!i2c_check_functionality(adapter,
1147                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1148                 /* We need to be able to do byte I/O */
1149                 goto ERROR0 ;
1150         };
1151
1152         /* OK. For now, we presume we have a valid client. We now create the
1153            client structure, even though we cannot fill it completely yet.
1154            But it allows us to access lm85_{read,write}_value. */
1155
1156         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1157                 err = -ENOMEM;
1158                 goto ERROR0;
1159         }
1160
1161         new_client = &data->client;
1162         i2c_set_clientdata(new_client, data);
1163         new_client->addr = address;
1164         new_client->adapter = adapter;
1165         new_client->driver = &lm85_driver;
1166         new_client->flags = 0;
1167
1168         /* Now, we do the remaining detection. */
1169
1170         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1171         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1172
1173         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1174                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1175                 i2c_adapter_id(new_client->adapter), new_client->addr,
1176                 company, verstep);
1177
1178         /* If auto-detecting, Determine the chip type. */
1179         if (kind <= 0) {
1180                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1181                         i2c_adapter_id(adapter), address );
1182                 if( company == LM85_COMPANY_NATIONAL
1183                     && verstep == LM85_VERSTEP_LM85C ) {
1184                         kind = lm85c ;
1185                 } else if( company == LM85_COMPANY_NATIONAL
1186                     && verstep == LM85_VERSTEP_LM85B ) {
1187                         kind = lm85b ;
1188                 } else if( company == LM85_COMPANY_NATIONAL
1189                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1190                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1191                                 " Defaulting to LM85.\n", verstep);
1192                         kind = any_chip ;
1193                 } else if( company == LM85_COMPANY_ANALOG_DEV
1194                     && verstep == LM85_VERSTEP_ADM1027 ) {
1195                         kind = adm1027 ;
1196                 } else if( company == LM85_COMPANY_ANALOG_DEV
1197                     && (verstep == LM85_VERSTEP_ADT7463
1198                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1199                         kind = adt7463 ;
1200                 } else if( company == LM85_COMPANY_ANALOG_DEV
1201                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1202                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1203                                 " Defaulting to Generic LM85.\n", verstep );
1204                         kind = any_chip ;
1205                 } else if( company == LM85_COMPANY_SMSC
1206                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1207                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1208                         /* Unfortunately, we can't tell a '100 from a '101
1209                          * from the registers.  Since a '101 is a '100
1210                          * in a package with fewer pins and therefore no
1211                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1212                          * inputs read 0, then it's a '101.
1213                          */
1214                         kind = emc6d100 ;
1215                 } else if( company == LM85_COMPANY_SMSC
1216                     && verstep == LM85_VERSTEP_EMC6D102) {
1217                         kind = emc6d102 ;
1218                 } else if( company == LM85_COMPANY_SMSC
1219                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1220                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1221                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1222                             " Defaulting to Generic LM85.\n", verstep );
1223                         kind = any_chip ;
1224                 } else if( kind == any_chip
1225                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1226                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1227                         /* Leave kind as "any_chip" */
1228                 } else {
1229                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1230                         /* Not an LM85 ... */
1231                         if( kind == any_chip ) {  /* User used force=x,y */
1232                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1233                                         " found at %d,0x%02x. Try force_lm85c.\n",
1234                                         i2c_adapter_id(adapter), address );
1235                         }
1236                         err = 0 ;
1237                         goto ERROR1;
1238                 }
1239         }
1240
1241         /* Fill in the chip specific driver values */
1242         if ( kind == any_chip ) {
1243                 type_name = "lm85";
1244         } else if ( kind == lm85b ) {
1245                 type_name = "lm85b";
1246         } else if ( kind == lm85c ) {
1247                 type_name = "lm85c";
1248         } else if ( kind == adm1027 ) {
1249                 type_name = "adm1027";
1250         } else if ( kind == adt7463 ) {
1251                 type_name = "adt7463";
1252         } else if ( kind == emc6d100){
1253                 type_name = "emc6d100";
1254         } else if ( kind == emc6d102 ) {
1255                 type_name = "emc6d102";
1256         }
1257         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1258
1259         /* Fill in the remaining client fields */
1260         data->type = kind;
1261         data->valid = 0;
1262         mutex_init(&data->update_lock);
1263
1264         /* Tell the I2C layer a new client has arrived */
1265         if ((err = i2c_attach_client(new_client)))
1266                 goto ERROR1;
1267
1268         /* Set the VRM version */
1269         data->vrm = vid_which_vrm();
1270
1271         /* Initialize the LM85 chip */
1272         lm85_init_client(new_client);
1273
1274         /* Register sysfs hooks */
1275         if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
1276                 goto ERROR2;
1277
1278         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1279            as a sixth digital VID input rather than an analog input. */
1280         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1281         if (!(kind == adt7463 && (data->vid & 0x80)))
1282                 if ((err = sysfs_create_group(&new_client->dev.kobj,
1283                                         &lm85_group_in4)))
1284                         goto ERROR3;
1285
1286         /* The EMC6D100 has 3 additional voltage inputs */
1287         if (kind == emc6d100)
1288                 if ((err = sysfs_create_group(&new_client->dev.kobj,
1289                                         &lm85_group_in567)))
1290                         goto ERROR3;
1291
1292         data->hwmon_dev = hwmon_device_register(&new_client->dev);
1293         if (IS_ERR(data->hwmon_dev)) {
1294                 err = PTR_ERR(data->hwmon_dev);
1295                 goto ERROR3;
1296         }
1297
1298         return 0;
1299
1300         /* Error out and cleanup code */
1301     ERROR3:
1302         sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
1303         sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in4);
1304         if (kind == emc6d100)
1305                 sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in567);
1306     ERROR2:
1307         i2c_detach_client(new_client);
1308     ERROR1:
1309         kfree(data);
1310     ERROR0:
1311         return err;
1312 }
1313
1314 static int lm85_detach_client(struct i2c_client *client)
1315 {
1316         struct lm85_data *data = i2c_get_clientdata(client);
1317         hwmon_device_unregister(data->hwmon_dev);
1318         sysfs_remove_group(&client->dev.kobj, &lm85_group);
1319         sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1320         if (data->type == emc6d100)
1321                 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1322         i2c_detach_client(client);
1323         kfree(data);
1324         return 0;
1325 }
1326
1327
1328 static int lm85_read_value(struct i2c_client *client, u8 reg)
1329 {
1330         int res;
1331
1332         /* What size location is it? */
1333         switch( reg ) {
1334         case LM85_REG_FAN(0) :  /* Read WORD data */
1335         case LM85_REG_FAN(1) :
1336         case LM85_REG_FAN(2) :
1337         case LM85_REG_FAN(3) :
1338         case LM85_REG_FAN_MIN(0) :
1339         case LM85_REG_FAN_MIN(1) :
1340         case LM85_REG_FAN_MIN(2) :
1341         case LM85_REG_FAN_MIN(3) :
1342         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1343                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1344                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1345                 break ;
1346         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1347                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1348                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1349                 break ;
1350         default:        /* Read BYTE data */
1351                 res = i2c_smbus_read_byte_data(client, reg);
1352                 break ;
1353         }
1354
1355         return res ;
1356 }
1357
1358 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1359 {
1360         int res ;
1361
1362         switch( reg ) {
1363         case LM85_REG_FAN(0) :  /* Write WORD data */
1364         case LM85_REG_FAN(1) :
1365         case LM85_REG_FAN(2) :
1366         case LM85_REG_FAN(3) :
1367         case LM85_REG_FAN_MIN(0) :
1368         case LM85_REG_FAN_MIN(1) :
1369         case LM85_REG_FAN_MIN(2) :
1370         case LM85_REG_FAN_MIN(3) :
1371         /* NOTE: ALARM is read only, so not included here */
1372                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1373                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1374                 break ;
1375         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1376                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1377                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1378                 break ;
1379         default:        /* Write BYTE data */
1380                 res = i2c_smbus_write_byte_data(client, reg, value);
1381                 break ;
1382         }
1383
1384         return res ;
1385 }
1386
1387 static void lm85_init_client(struct i2c_client *client)
1388 {
1389         int value;
1390         struct lm85_data *data = i2c_get_clientdata(client);
1391
1392         dev_dbg(&client->dev, "Initializing device\n");
1393
1394         /* Warn if part was not "READY" */
1395         value = lm85_read_value(client, LM85_REG_CONFIG);
1396         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1397         if( value & 0x02 ) {
1398                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1399                             i2c_adapter_id(client->adapter), client->addr );
1400         };
1401         if( ! (value & 0x04) ) {
1402                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1403                             i2c_adapter_id(client->adapter), client->addr );
1404         };
1405         if( value & 0x10
1406             && ( data->type == adm1027
1407                 || data->type == adt7463 ) ) {
1408                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1409                         "Please report this to the lm85 maintainer.\n",
1410                             i2c_adapter_id(client->adapter), client->addr );
1411         };
1412
1413         /* WE INTENTIONALLY make no changes to the limits,
1414          *   offsets, pwms, fans and zones.  If they were
1415          *   configured, we don't want to mess with them.
1416          *   If they weren't, the default is 100% PWM, no
1417          *   control and will suffice until 'sensors -s'
1418          *   can be run by the user.
1419          */
1420
1421         /* Start monitoring */
1422         value = lm85_read_value(client, LM85_REG_CONFIG);
1423         /* Try to clear LOCK, Set START, save everything else */
1424         value = (value & ~ 0x02) | 0x01 ;
1425         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1426         lm85_write_value(client, LM85_REG_CONFIG, value);
1427 }
1428
1429 static struct lm85_data *lm85_update_device(struct device *dev)
1430 {
1431         struct i2c_client *client = to_i2c_client(dev);
1432         struct lm85_data *data = i2c_get_clientdata(client);
1433         int i;
1434
1435         mutex_lock(&data->update_lock);
1436
1437         if ( !data->valid ||
1438              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1439                 /* Things that change quickly */
1440                 dev_dbg(&client->dev, "Reading sensor values\n");
1441                 
1442                 /* Have to read extended bits first to "freeze" the
1443                  * more significant bits that are read later.
1444                  * There are 2 additional resolution bits per channel and we
1445                  * have room for 4, so we shift them to the left.
1446                  */
1447                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1448                         int ext1 = lm85_read_value(client,
1449                                                    ADM1027_REG_EXTEND_ADC1);
1450                         int ext2 =  lm85_read_value(client,
1451                                                     ADM1027_REG_EXTEND_ADC2);
1452                         int val = (ext1 << 8) + ext2;
1453
1454                         for(i = 0; i <= 4; i++)
1455                                 data->in_ext[i] = ((val>>(i * 2))&0x03) << 2;
1456
1457                         for(i = 0; i <= 2; i++)
1458                                 data->temp_ext[i] = (val>>((i + 4) * 2))&0x0c;
1459                 }
1460
1461                 data->vid = lm85_read_value(client, LM85_REG_VID);
1462
1463                 for (i = 0; i <= 3; ++i) {
1464                         data->in[i] =
1465                             lm85_read_value(client, LM85_REG_IN(i));
1466                 }
1467
1468                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1469                         data->in[4] = lm85_read_value(client,
1470                                       LM85_REG_IN(4));
1471                 }
1472
1473                 for (i = 0; i <= 3; ++i) {
1474                         data->fan[i] =
1475                             lm85_read_value(client, LM85_REG_FAN(i));
1476                 }
1477
1478                 for (i = 0; i <= 2; ++i) {
1479                         data->temp[i] =
1480                             lm85_read_value(client, LM85_REG_TEMP(i));
1481                 }
1482
1483                 for (i = 0; i <= 2; ++i) {
1484                         data->pwm[i] =
1485                             lm85_read_value(client, LM85_REG_PWM(i));
1486                 }
1487
1488                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1489
1490                 if ( data->type == adt7463 ) {
1491                         if( data->therm_total < ULONG_MAX - 256 ) {
1492                             data->therm_total +=
1493                                 lm85_read_value(client, ADT7463_REG_THERM );
1494                         }
1495                 } else if ( data->type == emc6d100 ) {
1496                         /* Three more voltage sensors */
1497                         for (i = 5; i <= 7; ++i) {
1498                                 data->in[i] =
1499                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1500                         }
1501                         /* More alarm bits */
1502                         data->alarms |=
1503                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1504                 } else if (data->type == emc6d102 ) {
1505                         /* Have to read LSB bits after the MSB ones because
1506                            the reading of the MSB bits has frozen the
1507                            LSBs (backward from the ADM1027).
1508                          */
1509                         int ext1 = lm85_read_value(client,
1510                                                    EMC6D102_REG_EXTEND_ADC1);
1511                         int ext2 = lm85_read_value(client,
1512                                                    EMC6D102_REG_EXTEND_ADC2);
1513                         int ext3 = lm85_read_value(client,
1514                                                    EMC6D102_REG_EXTEND_ADC3);
1515                         int ext4 = lm85_read_value(client,
1516                                                    EMC6D102_REG_EXTEND_ADC4);
1517                         data->in_ext[0] = ext3 & 0x0f;
1518                         data->in_ext[1] = ext4 & 0x0f;
1519                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1520                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1521                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1522
1523                         data->temp_ext[0] = ext1 & 0x0f;
1524                         data->temp_ext[1] = ext2 & 0x0f;
1525                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1526                 }
1527
1528                 data->last_reading = jiffies ;
1529         };  /* last_reading */
1530
1531         if ( !data->valid ||
1532              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1533                 /* Things that don't change often */
1534                 dev_dbg(&client->dev, "Reading config values\n");
1535
1536                 for (i = 0; i <= 3; ++i) {
1537                         data->in_min[i] =
1538                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1539                         data->in_max[i] =
1540                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1541                 }
1542
1543                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1544                         data->in_min[4] = lm85_read_value(client,
1545                                           LM85_REG_IN_MIN(4));
1546                         data->in_max[4] = lm85_read_value(client,
1547                                           LM85_REG_IN_MAX(4));
1548                 }
1549
1550                 if ( data->type == emc6d100 ) {
1551                         for (i = 5; i <= 7; ++i) {
1552                                 data->in_min[i] =
1553                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1554                                 data->in_max[i] =
1555                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1556                         }
1557                 }
1558
1559                 for (i = 0; i <= 3; ++i) {
1560                         data->fan_min[i] =
1561                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1562                 }
1563
1564                 for (i = 0; i <= 2; ++i) {
1565                         data->temp_min[i] =
1566                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1567                         data->temp_max[i] =
1568                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1569                 }
1570
1571                 for (i = 0; i <= 2; ++i) {
1572                         int val ;
1573                         data->autofan[i].config =
1574                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1575                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1576                         data->autofan[i].freq = val & 0x07 ;
1577                         data->zone[i].range = (val >> 4) & 0x0f ;
1578                         data->autofan[i].min_pwm =
1579                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1580                         data->zone[i].limit =
1581                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1582                         data->zone[i].critical =
1583                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1584                 }
1585
1586                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1587                 data->smooth[0] = i & 0x0f ;
1588                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1589                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1590                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1591                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1592                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1593                 data->smooth[1] = (i>>4) & 0x0f ;
1594                 data->smooth[2] = i & 0x0f ;
1595
1596                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1597                 data->zone[0].hyst = (i>>4) & 0x0f ;
1598                 data->zone[1].hyst = i & 0x0f ;
1599
1600                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1601                 data->zone[2].hyst = (i>>4) & 0x0f ;
1602
1603                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1604                         data->tach_mode = lm85_read_value(client,
1605                                 LM85_REG_TACH_MODE );
1606                         data->spinup_ctl = lm85_read_value(client,
1607                                 LM85_REG_SPINUP_CTL );
1608                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1609                         if ( data->type == adt7463 ) {
1610                                 for (i = 0; i <= 2; ++i) {
1611                                     data->oppoint[i] = lm85_read_value(client,
1612                                         ADT7463_REG_OPPOINT(i) );
1613                                 }
1614                                 data->tmin_ctl = lm85_read_value(client,
1615                                         ADT7463_REG_TMIN_CTL1 );
1616                                 data->therm_limit = lm85_read_value(client,
1617                                         ADT7463_REG_THERM_LIMIT );
1618                         }
1619                         for (i = 0; i <= 2; ++i) {
1620                             data->temp_offset[i] = lm85_read_value(client,
1621                                 ADM1027_REG_TEMP_OFFSET(i) );
1622                         }
1623                         data->tach_mode = lm85_read_value(client,
1624                                 ADM1027_REG_CONFIG3 );
1625                         data->fan_ppr = lm85_read_value(client,
1626                                 ADM1027_REG_FAN_PPR );
1627                 }
1628         
1629                 data->last_config = jiffies;
1630         };  /* last_config */
1631
1632         data->valid = 1;
1633
1634         mutex_unlock(&data->update_lock);
1635
1636         return data;
1637 }
1638
1639
1640 static int __init sm_lm85_init(void)
1641 {
1642         return i2c_add_driver(&lm85_driver);
1643 }
1644
1645 static void  __exit sm_lm85_exit(void)
1646 {
1647         i2c_del_driver(&lm85_driver);
1648 }
1649
1650 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1651  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1652  *     post 2.7.0 CVS changes.
1653  */
1654 MODULE_LICENSE("GPL");
1655 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1656 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1657
1658 module_init(sm_lm85_init);
1659 module_exit(sm_lm85_exit);