[PATCH] hwmon: Semaphore to mutex conversions
[linux-2.6.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/err.h>
34 #include <linux/mutex.h>
35
36 /* Addresses to scan */
37 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
38
39 /* Insmod parameters */
40 I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
41
42 /* The LM85 registers */
43
44 #define LM85_REG_IN(nr)                 (0x20 + (nr))
45 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
46 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
47
48 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
49 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
50 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
51
52 /* Fan speeds are LSB, MSB (2 bytes) */
53 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
54 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
55
56 #define LM85_REG_PWM(nr)                (0x30 + (nr))
57
58 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
59
60 #define ADT7463_REG_TMIN_CTL1           0x36
61 #define ADT7463_REG_TMIN_CTL2           0x37
62
63 #define LM85_REG_DEVICE                 0x3d
64 #define LM85_REG_COMPANY                0x3e
65 #define LM85_REG_VERSTEP                0x3f
66 /* These are the recognized values for the above regs */
67 #define LM85_DEVICE_ADX                 0x27
68 #define LM85_COMPANY_NATIONAL           0x01
69 #define LM85_COMPANY_ANALOG_DEV         0x41
70 #define LM85_COMPANY_SMSC               0x5c
71 #define LM85_VERSTEP_VMASK              0xf0
72 #define LM85_VERSTEP_GENERIC            0x60
73 #define LM85_VERSTEP_LM85C              0x60
74 #define LM85_VERSTEP_LM85B              0x62
75 #define LM85_VERSTEP_ADM1027            0x60
76 #define LM85_VERSTEP_ADT7463            0x62
77 #define LM85_VERSTEP_ADT7463C           0x6A
78 #define LM85_VERSTEP_EMC6D100_A0        0x60
79 #define LM85_VERSTEP_EMC6D100_A1        0x61
80 #define LM85_VERSTEP_EMC6D102           0x65
81
82 #define LM85_REG_CONFIG                 0x40
83
84 #define LM85_REG_ALARM1                 0x41
85 #define LM85_REG_ALARM2                 0x42
86
87 #define LM85_REG_VID                    0x43
88
89 /* Automated FAN control */
90 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
91 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
92 #define LM85_REG_AFAN_SPIKE1            0x62
93 #define LM85_REG_AFAN_SPIKE2            0x63
94 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
95 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
96 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
97 #define LM85_REG_AFAN_HYST1             0x6d
98 #define LM85_REG_AFAN_HYST2             0x6e
99
100 #define LM85_REG_TACH_MODE              0x74
101 #define LM85_REG_SPINUP_CTL             0x75
102
103 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
104 #define ADM1027_REG_CONFIG2             0x73
105 #define ADM1027_REG_INTMASK1            0x74
106 #define ADM1027_REG_INTMASK2            0x75
107 #define ADM1027_REG_EXTEND_ADC1         0x76
108 #define ADM1027_REG_EXTEND_ADC2         0x77
109 #define ADM1027_REG_CONFIG3             0x78
110 #define ADM1027_REG_FAN_PPR             0x7b
111
112 #define ADT7463_REG_THERM               0x79
113 #define ADT7463_REG_THERM_LIMIT         0x7A
114
115 #define EMC6D100_REG_ALARM3             0x7d
116 /* IN5, IN6 and IN7 */
117 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
118 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
119 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
120 #define EMC6D102_REG_EXTEND_ADC1        0x85
121 #define EMC6D102_REG_EXTEND_ADC2        0x86
122 #define EMC6D102_REG_EXTEND_ADC3        0x87
123 #define EMC6D102_REG_EXTEND_ADC4        0x88
124
125 #define LM85_ALARM_IN0                  0x0001
126 #define LM85_ALARM_IN1                  0x0002
127 #define LM85_ALARM_IN2                  0x0004
128 #define LM85_ALARM_IN3                  0x0008
129 #define LM85_ALARM_TEMP1                0x0010
130 #define LM85_ALARM_TEMP2                0x0020
131 #define LM85_ALARM_TEMP3                0x0040
132 #define LM85_ALARM_ALARM2               0x0080
133 #define LM85_ALARM_IN4                  0x0100
134 #define LM85_ALARM_RESERVED             0x0200
135 #define LM85_ALARM_FAN1                 0x0400
136 #define LM85_ALARM_FAN2                 0x0800
137 #define LM85_ALARM_FAN3                 0x1000
138 #define LM85_ALARM_FAN4                 0x2000
139 #define LM85_ALARM_TEMP1_FAULT          0x4000
140 #define LM85_ALARM_TEMP3_FAULT          0x8000
141
142
143 /* Conversions. Rounding and limit checking is only done on the TO_REG 
144    variants. Note that you should be a bit careful with which arguments
145    these macros are called: arguments may be evaluated more than once.
146  */
147
148 /* IN are scaled acording to built-in resistors */
149 static int lm85_scaling[] = {  /* .001 Volts */
150                 2500, 2250, 3300, 5000, 12000,
151                 3300, 1500, 1800 /*EMC6D100*/
152         };
153 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
154
155 #define INS_TO_REG(n,val)       \
156                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
157
158 #define INSEXT_FROM_REG(n,val,ext,scale)        \
159                 SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n])
160
161 #define INS_FROM_REG(n,val)   INSEXT_FROM_REG(n,val,0,1)
162
163 /* FAN speed is measured using 90kHz clock */
164 #define FAN_TO_REG(val)         (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
165 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
166
167 /* Temperature is reported in .001 degC increments */
168 #define TEMP_TO_REG(val)        \
169                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
170 #define TEMPEXT_FROM_REG(val,ext,scale) \
171                 SCALE((val)*scale + (ext),scale,1000)
172 #define TEMP_FROM_REG(val)      \
173                 TEMPEXT_FROM_REG(val,0,1)
174
175 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
176 #define PWM_FROM_REG(val)               (val)
177
178
179 /* ZONEs have the following parameters:
180  *    Limit (low) temp,           1. degC
181  *    Hysteresis (below limit),   1. degC (0-15)
182  *    Range of speed control,     .1 degC (2-80)
183  *    Critical (high) temp,       1. degC
184  *
185  * FAN PWMs have the following parameters:
186  *    Reference Zone,                 1, 2, 3, etc.
187  *    Spinup time,                    .05 sec
188  *    PWM value at limit/low temp,    1 count
189  *    PWM Frequency,                  1. Hz
190  *    PWM is Min or OFF below limit,  flag
191  *    Invert PWM output,              flag
192  *
193  * Some chips filter the temp, others the fan.
194  *    Filter constant (or disabled)   .1 seconds
195  */
196
197 /* These are the zone temperature range encodings in .001 degree C */
198 static int lm85_range_map[] = {   
199                 2000,  2500,  3300,  4000,  5000,  6600,
200                 8000, 10000, 13300, 16000, 20000, 26600,
201                 32000, 40000, 53300, 80000
202         };
203 static int RANGE_TO_REG( int range )
204 {
205         int i;
206
207         if ( range < lm85_range_map[0] ) { 
208                 return 0 ;
209         } else if ( range > lm85_range_map[15] ) {
210                 return 15 ;
211         } else {  /* find closest match */
212                 for ( i = 14 ; i >= 0 ; --i ) {
213                         if ( range > lm85_range_map[i] ) { /* range bracketed */
214                                 if ((lm85_range_map[i+1] - range) < 
215                                         (range - lm85_range_map[i])) {
216                                         i++;
217                                         break;
218                                 }
219                                 break;
220                         }
221                 }
222         }
223         return( i & 0x0f );
224 }
225 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
226
227 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
228  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
229  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
230  *       is ignored, or set to 0.
231  */
232 /* These are the PWM frequency encodings */
233 static int lm85_freq_map[] = { /* .1 Hz */
234                 100, 150, 230, 300, 380, 470, 620, 940
235         };
236 static int FREQ_TO_REG( int freq )
237 {
238         int i;
239
240         if( freq >= lm85_freq_map[7] ) { return 7 ; }
241         for( i = 0 ; i < 7 ; ++i )
242                 if( freq <= lm85_freq_map[i] )
243                         break ;
244         return( i & 0x07 );
245 }
246 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
247
248 /* Since we can't use strings, I'm abusing these numbers
249  *   to stand in for the following meanings:
250  *      1 -- PWM responds to Zone 1
251  *      2 -- PWM responds to Zone 2
252  *      3 -- PWM responds to Zone 3
253  *     23 -- PWM responds to the higher temp of Zone 2 or 3
254  *    123 -- PWM responds to highest of Zone 1, 2, or 3
255  *      0 -- PWM is always at 0% (ie, off)
256  *     -1 -- PWM is always at 100%
257  *     -2 -- PWM responds to manual control
258  */
259
260 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
261 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
262
263 static int ZONE_TO_REG( int zone )
264 {
265         int i;
266
267         for( i = 0 ; i <= 7 ; ++i )
268                 if( zone == lm85_zone_map[i] )
269                         break ;
270         if( i > 7 )   /* Not found. */
271                 i = 3;  /* Always 100% */
272         return( (i & 0x07)<<5 );
273 }
274
275 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
276 #define HYST_FROM_REG(val) ((val)*1000)
277
278 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
279 #define OFFSET_FROM_REG(val) ((val)*25)
280
281 #define PPR_MASK(fan) (0x03<<(fan *2))
282 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
283 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
284
285 /* Chip sampling rates
286  *
287  * Some sensors are not updated more frequently than once per second
288  *    so it doesn't make sense to read them more often than that.
289  *    We cache the results and return the saved data if the driver
290  *    is called again before a second has elapsed.
291  *
292  * Also, there is significant configuration data for this chip
293  *    given the automatic PWM fan control that is possible.  There
294  *    are about 47 bytes of config data to only 22 bytes of actual
295  *    readings.  So, we keep the config data up to date in the cache
296  *    when it is written and only sample it once every 1 *minute*
297  */
298 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
299 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
300
301 /* For each registered LM85, we need to keep some data in memory. That
302    data is pointed to by lm85_list[NR]->data. The structure itself is
303    dynamically allocated, at the same time when a new lm85 client is
304    allocated. */
305
306 /* LM85 can automatically adjust fan speeds based on temperature
307  * This structure encapsulates an entire Zone config.  There are
308  * three zones (one for each temperature input) on the lm85
309  */
310 struct lm85_zone {
311         s8 limit;       /* Low temp limit */
312         u8 hyst;        /* Low limit hysteresis. (0-15) */
313         u8 range;       /* Temp range, encoded */
314         s8 critical;    /* "All fans ON" temp limit */
315         u8 off_desired; /* Actual "off" temperature specified.  Preserved 
316                          * to prevent "drift" as other autofan control
317                          * values change.
318                          */
319         u8 max_desired; /* Actual "max" temperature specified.  Preserved 
320                          * to prevent "drift" as other autofan control
321                          * values change.
322                          */
323 };
324
325 struct lm85_autofan {
326         u8 config;      /* Register value */
327         u8 freq;        /* PWM frequency, encoded */
328         u8 min_pwm;     /* Minimum PWM value, encoded */
329         u8 min_off;     /* Min PWM or OFF below "limit", flag */
330 };
331
332 struct lm85_data {
333         struct i2c_client client;
334         struct class_device *class_dev;
335         struct mutex lock;
336         enum chips type;
337
338         struct mutex update_lock;
339         int valid;              /* !=0 if following fields are valid */
340         unsigned long last_reading;     /* In jiffies */
341         unsigned long last_config;      /* In jiffies */
342
343         u8 in[8];               /* Register value */
344         u8 in_max[8];           /* Register value */
345         u8 in_min[8];           /* Register value */
346         s8 temp[3];             /* Register value */
347         s8 temp_min[3];         /* Register value */
348         s8 temp_max[3];         /* Register value */
349         s8 temp_offset[3];      /* Register value */
350         u16 fan[4];             /* Register value */
351         u16 fan_min[4];         /* Register value */
352         u8 pwm[3];              /* Register value */
353         u8 spinup_ctl;          /* Register encoding, combined */
354         u8 tach_mode;           /* Register encoding, combined */
355         u8 temp_ext[3];         /* Decoded values */
356         u8 in_ext[8];           /* Decoded values */
357         u8 adc_scale;           /* ADC Extended bits scaling factor */
358         u8 fan_ppr;             /* Register value */
359         u8 smooth[3];           /* Register encoding */
360         u8 vid;                 /* Register value */
361         u8 vrm;                 /* VRM version */
362         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
363         u8 oppoint[3];          /* Register value */
364         u16 tmin_ctl;           /* Register value */
365         unsigned long therm_total; /* Cummulative therm count */
366         u8 therm_limit;         /* Register value */
367         u32 alarms;             /* Register encoding, combined */
368         struct lm85_autofan autofan[3];
369         struct lm85_zone zone[3];
370 };
371
372 static int lm85_attach_adapter(struct i2c_adapter *adapter);
373 static int lm85_detect(struct i2c_adapter *adapter, int address,
374                         int kind);
375 static int lm85_detach_client(struct i2c_client *client);
376
377 static int lm85_read_value(struct i2c_client *client, u8 register);
378 static int lm85_write_value(struct i2c_client *client, u8 register, int value);
379 static struct lm85_data *lm85_update_device(struct device *dev);
380 static void lm85_init_client(struct i2c_client *client);
381
382
383 static struct i2c_driver lm85_driver = {
384         .driver = {
385                 .name   = "lm85",
386         },
387         .id             = I2C_DRIVERID_LM85,
388         .attach_adapter = lm85_attach_adapter,
389         .detach_client  = lm85_detach_client,
390 };
391
392
393 /* 4 Fans */
394 static ssize_t show_fan(struct device *dev, char *buf, int nr)
395 {
396         struct lm85_data *data = lm85_update_device(dev);
397         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
398 }
399 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
400 {
401         struct lm85_data *data = lm85_update_device(dev);
402         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
403 }
404 static ssize_t set_fan_min(struct device *dev, const char *buf, 
405                 size_t count, int nr)
406 {
407         struct i2c_client *client = to_i2c_client(dev);
408         struct lm85_data *data = i2c_get_clientdata(client);
409         long val = simple_strtol(buf, NULL, 10);
410
411         mutex_lock(&data->update_lock);
412         data->fan_min[nr] = FAN_TO_REG(val);
413         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
414         mutex_unlock(&data->update_lock);
415         return count;
416 }
417
418 #define show_fan_offset(offset)                                         \
419 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
420 {                                                                       \
421         return show_fan(dev, buf, offset - 1);                          \
422 }                                                                       \
423 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
424 {                                                                       \
425         return show_fan_min(dev, buf, offset - 1);                      \
426 }                                                                       \
427 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
428         const char *buf, size_t count)                                  \
429 {                                                                       \
430         return set_fan_min(dev, buf, count, offset - 1);                \
431 }                                                                       \
432 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
433                 NULL);                                                  \
434 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
435                 show_fan_##offset##_min, set_fan_##offset##_min);
436
437 show_fan_offset(1);
438 show_fan_offset(2);
439 show_fan_offset(3);
440 show_fan_offset(4);
441
442 /* vid, vrm, alarms */
443
444 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
445 {
446         struct lm85_data *data = lm85_update_device(dev);
447         int vid;
448
449         if (data->type == adt7463 && (data->vid & 0x80)) {
450                 /* 6-pin VID (VRM 10) */
451                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
452         } else {
453                 /* 5-pin VID (VRM 9) */
454                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
455         }
456
457         return sprintf(buf, "%d\n", vid);
458 }
459
460 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
461
462 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
463 {
464         struct lm85_data *data = lm85_update_device(dev);
465         return sprintf(buf, "%ld\n", (long) data->vrm);
466 }
467
468 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
469 {
470         struct i2c_client *client = to_i2c_client(dev);
471         struct lm85_data *data = i2c_get_clientdata(client);
472         u32 val;
473
474         val = simple_strtoul(buf, NULL, 10);
475         data->vrm = val;
476         return count;
477 }
478
479 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
480
481 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
482 {
483         struct lm85_data *data = lm85_update_device(dev);
484         return sprintf(buf, "%u\n", data->alarms);
485 }
486
487 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
488
489 /* pwm */
490
491 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
492 {
493         struct lm85_data *data = lm85_update_device(dev);
494         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
495 }
496 static ssize_t set_pwm(struct device *dev, const char *buf, 
497                 size_t count, int nr)
498 {
499         struct i2c_client *client = to_i2c_client(dev);
500         struct lm85_data *data = i2c_get_clientdata(client);
501         long val = simple_strtol(buf, NULL, 10);
502
503         mutex_lock(&data->update_lock);
504         data->pwm[nr] = PWM_TO_REG(val);
505         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
506         mutex_unlock(&data->update_lock);
507         return count;
508 }
509 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
510 {
511         struct lm85_data *data = lm85_update_device(dev);
512         int     pwm_zone;
513
514         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
515         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
516 }
517
518 #define show_pwm_reg(offset)                                            \
519 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
520 {                                                                       \
521         return show_pwm(dev, buf, offset - 1);                          \
522 }                                                                       \
523 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
524                                  const char *buf, size_t count)         \
525 {                                                                       \
526         return set_pwm(dev, buf, count, offset - 1);                    \
527 }                                                                       \
528 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
529 {                                                                       \
530         return show_pwm_enable(dev, buf, offset - 1);                   \
531 }                                                                       \
532 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
533                 show_pwm_##offset, set_pwm_##offset);                   \
534 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
535                 show_pwm_enable##offset, NULL);
536
537 show_pwm_reg(1);
538 show_pwm_reg(2);
539 show_pwm_reg(3);
540
541 /* Voltages */
542
543 static ssize_t show_in(struct device *dev, char *buf, int nr)
544 {
545         struct lm85_data *data = lm85_update_device(dev);
546         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
547                                                      data->in[nr],
548                                                      data->in_ext[nr],
549                                                      data->adc_scale) );
550 }
551 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
552 {
553         struct lm85_data *data = lm85_update_device(dev);
554         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
555 }
556 static ssize_t set_in_min(struct device *dev, const char *buf, 
557                 size_t count, int nr)
558 {
559         struct i2c_client *client = to_i2c_client(dev);
560         struct lm85_data *data = i2c_get_clientdata(client);
561         long val = simple_strtol(buf, NULL, 10);
562
563         mutex_lock(&data->update_lock);
564         data->in_min[nr] = INS_TO_REG(nr, val);
565         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
566         mutex_unlock(&data->update_lock);
567         return count;
568 }
569 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
570 {
571         struct lm85_data *data = lm85_update_device(dev);
572         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
573 }
574 static ssize_t set_in_max(struct device *dev, const char *buf, 
575                 size_t count, int nr)
576 {
577         struct i2c_client *client = to_i2c_client(dev);
578         struct lm85_data *data = i2c_get_clientdata(client);
579         long val = simple_strtol(buf, NULL, 10);
580
581         mutex_lock(&data->update_lock);
582         data->in_max[nr] = INS_TO_REG(nr, val);
583         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
584         mutex_unlock(&data->update_lock);
585         return count;
586 }
587 #define show_in_reg(offset)                                             \
588 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
589 {                                                                       \
590         return show_in(dev, buf, offset);                               \
591 }                                                                       \
592 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
593 {                                                                       \
594         return show_in_min(dev, buf, offset);                           \
595 }                                                                       \
596 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
597 {                                                                       \
598         return show_in_max(dev, buf, offset);                           \
599 }                                                                       \
600 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
601         const char *buf, size_t count)                                  \
602 {                                                                       \
603         return set_in_min(dev, buf, count, offset);                     \
604 }                                                                       \
605 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
606         const char *buf, size_t count)                                  \
607 {                                                                       \
608         return set_in_max(dev, buf, count, offset);                     \
609 }                                                                       \
610 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
611                 NULL);                                                  \
612 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
613                 show_in_##offset##_min, set_in_##offset##_min);         \
614 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
615                 show_in_##offset##_max, set_in_##offset##_max);
616
617 show_in_reg(0);
618 show_in_reg(1);
619 show_in_reg(2);
620 show_in_reg(3);
621 show_in_reg(4);
622
623 /* Temps */
624
625 static ssize_t show_temp(struct device *dev, char *buf, int nr)
626 {
627         struct lm85_data *data = lm85_update_device(dev);
628         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
629                                                     data->temp_ext[nr],
630                                                     data->adc_scale) );
631 }
632 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
633 {
634         struct lm85_data *data = lm85_update_device(dev);
635         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
636 }
637 static ssize_t set_temp_min(struct device *dev, const char *buf, 
638                 size_t count, int nr)
639 {
640         struct i2c_client *client = to_i2c_client(dev);
641         struct lm85_data *data = i2c_get_clientdata(client);
642         long val = simple_strtol(buf, NULL, 10);
643
644         mutex_lock(&data->update_lock);
645         data->temp_min[nr] = TEMP_TO_REG(val);
646         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
647         mutex_unlock(&data->update_lock);
648         return count;
649 }
650 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
651 {
652         struct lm85_data *data = lm85_update_device(dev);
653         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
654 }
655 static ssize_t set_temp_max(struct device *dev, const char *buf, 
656                 size_t count, int nr)
657 {
658         struct i2c_client *client = to_i2c_client(dev);
659         struct lm85_data *data = i2c_get_clientdata(client);
660         long val = simple_strtol(buf, NULL, 10);        
661
662         mutex_lock(&data->update_lock);
663         data->temp_max[nr] = TEMP_TO_REG(val);
664         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
665         mutex_unlock(&data->update_lock);
666         return count;
667 }
668 #define show_temp_reg(offset)                                           \
669 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
670 {                                                                       \
671         return show_temp(dev, buf, offset - 1);                         \
672 }                                                                       \
673 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
674 {                                                                       \
675         return show_temp_min(dev, buf, offset - 1);                     \
676 }                                                                       \
677 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
678 {                                                                       \
679         return show_temp_max(dev, buf, offset - 1);                     \
680 }                                                                       \
681 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
682         const char *buf, size_t count)                                  \
683 {                                                                       \
684         return set_temp_min(dev, buf, count, offset - 1);               \
685 }                                                                       \
686 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
687         const char *buf, size_t count)                                  \
688 {                                                                       \
689         return set_temp_max(dev, buf, count, offset - 1);               \
690 }                                                                       \
691 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
692                 NULL);                                                  \
693 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
694                 show_temp_##offset##_min, set_temp_##offset##_min);     \
695 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
696                 show_temp_##offset##_max, set_temp_##offset##_max);
697
698 show_temp_reg(1);
699 show_temp_reg(2);
700 show_temp_reg(3);
701
702
703 /* Automatic PWM control */
704
705 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
706 {
707         struct lm85_data *data = lm85_update_device(dev);
708         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
709 }
710 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
711         size_t count, int nr)
712 {
713         struct i2c_client *client = to_i2c_client(dev);
714         struct lm85_data *data = i2c_get_clientdata(client);
715         long val = simple_strtol(buf, NULL, 10);   
716
717         mutex_lock(&data->update_lock);
718         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
719                 | ZONE_TO_REG(val) ;
720         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
721                 data->autofan[nr].config);
722         mutex_unlock(&data->update_lock);
723         return count;
724 }
725 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
726 {
727         struct lm85_data *data = lm85_update_device(dev);
728         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
729 }
730 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
731         size_t count, int nr)
732 {
733         struct i2c_client *client = to_i2c_client(dev);
734         struct lm85_data *data = i2c_get_clientdata(client);
735         long val = simple_strtol(buf, NULL, 10);
736
737         mutex_lock(&data->update_lock);
738         data->autofan[nr].min_pwm = PWM_TO_REG(val);
739         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
740                 data->autofan[nr].min_pwm);
741         mutex_unlock(&data->update_lock);
742         return count;
743 }
744 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
745 {
746         struct lm85_data *data = lm85_update_device(dev);
747         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
748 }
749 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
750         size_t count, int nr)
751 {
752         struct i2c_client *client = to_i2c_client(dev);
753         struct lm85_data *data = i2c_get_clientdata(client);
754         long val = simple_strtol(buf, NULL, 10);
755
756         mutex_lock(&data->update_lock);
757         data->autofan[nr].min_off = val;
758         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
759                 | data->syncpwm3
760                 | (data->autofan[0].min_off ? 0x20 : 0)
761                 | (data->autofan[1].min_off ? 0x40 : 0)
762                 | (data->autofan[2].min_off ? 0x80 : 0)
763         );
764         mutex_unlock(&data->update_lock);
765         return count;
766 }
767 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
768 {
769         struct lm85_data *data = lm85_update_device(dev);
770         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
771 }
772 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
773                 size_t count, int nr)
774 {
775         struct i2c_client *client = to_i2c_client(dev);
776         struct lm85_data *data = i2c_get_clientdata(client);
777         long val = simple_strtol(buf, NULL, 10);
778
779         mutex_lock(&data->update_lock);
780         data->autofan[nr].freq = FREQ_TO_REG(val);
781         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
782                 (data->zone[nr].range << 4)
783                 | data->autofan[nr].freq
784         ); 
785         mutex_unlock(&data->update_lock);
786         return count;
787 }
788 #define pwm_auto(offset)                                                \
789 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
790         char *buf)                                                      \
791 {                                                                       \
792         return show_pwm_auto_channels(dev, buf, offset - 1);            \
793 }                                                                       \
794 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
795         const char *buf, size_t count)                                  \
796 {                                                                       \
797         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
798 }                                                                       \
799 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
800         char *buf)                                                      \
801 {                                                                       \
802         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
803 }                                                                       \
804 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
805         const char *buf, size_t count)                                  \
806 {                                                                       \
807         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
808 }                                                                       \
809 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
810         char *buf)                                                      \
811 {                                                                       \
812         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
813 }                                                                       \
814 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
815         const char *buf, size_t count)                                  \
816 {                                                                       \
817         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
818 }                                                                       \
819 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
820         char *buf)                                                      \
821 {                                                                       \
822         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
823 }                                                                       \
824 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
825         const char *buf, size_t count)                                  \
826 {                                                                       \
827         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
828 }                                                                       \
829 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
830                 show_pwm##offset##_auto_channels,                       \
831                 set_pwm##offset##_auto_channels);                       \
832 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
833                 show_pwm##offset##_auto_pwm_min,                        \
834                 set_pwm##offset##_auto_pwm_min);                        \
835 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
836                 show_pwm##offset##_auto_pwm_minctl,                     \
837                 set_pwm##offset##_auto_pwm_minctl);                     \
838 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
839                 show_pwm##offset##_auto_pwm_freq,                       \
840                 set_pwm##offset##_auto_pwm_freq);              
841 pwm_auto(1);
842 pwm_auto(2);
843 pwm_auto(3);
844
845 /* Temperature settings for automatic PWM control */
846
847 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
848 {
849         struct lm85_data *data = lm85_update_device(dev);
850         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
851                 HYST_FROM_REG(data->zone[nr].hyst));
852 }
853 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
854         size_t count, int nr)
855 {
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
861         mutex_lock(&data->update_lock);
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);
865         if ( nr == 0 || nr == 1 ) {
866                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
867                         (data->zone[0].hyst << 4)
868                         | data->zone[1].hyst
869                         );
870         } else {
871                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
872                         (data->zone[2].hyst << 4)
873                 );
874         }
875         mutex_unlock(&data->update_lock);
876         return count;
877 }
878 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
879 {
880         struct lm85_data *data = lm85_update_device(dev);
881         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
882 }
883 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
884         size_t count, int nr)
885 {
886         struct i2c_client *client = to_i2c_client(dev);
887         struct lm85_data *data = i2c_get_clientdata(client);
888         long val = simple_strtol(buf, NULL, 10);
889
890         mutex_lock(&data->update_lock);
891         data->zone[nr].limit = TEMP_TO_REG(val);
892         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
893                 data->zone[nr].limit);
894
895 /* Update temp_auto_max and temp_auto_range */
896         data->zone[nr].range = RANGE_TO_REG(
897                 TEMP_FROM_REG(data->zone[nr].max_desired) -
898                 TEMP_FROM_REG(data->zone[nr].limit));
899         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
900                 ((data->zone[nr].range & 0x0f) << 4)
901                 | (data->autofan[nr].freq & 0x07));
902
903 /* Update temp_auto_hyst and temp_auto_off */
904         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
905                 data->zone[nr].limit) - TEMP_FROM_REG(
906                 data->zone[nr].off_desired));
907         if ( nr == 0 || nr == 1 ) {
908                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
909                         (data->zone[0].hyst << 4)
910                         | data->zone[1].hyst
911                         );
912         } else {
913                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
914                         (data->zone[2].hyst << 4)
915                 );
916         }
917         mutex_unlock(&data->update_lock);
918         return count;
919 }
920 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
921 {
922         struct lm85_data *data = lm85_update_device(dev);
923         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
924                 RANGE_FROM_REG(data->zone[nr].range));
925 }
926 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
927         size_t count, int nr)
928 {
929         struct i2c_client *client = to_i2c_client(dev);
930         struct lm85_data *data = i2c_get_clientdata(client);
931         int min;
932         long val = simple_strtol(buf, NULL, 10);
933
934         mutex_lock(&data->update_lock);
935         min = TEMP_FROM_REG(data->zone[nr].limit);
936         data->zone[nr].max_desired = TEMP_TO_REG(val);
937         data->zone[nr].range = RANGE_TO_REG(
938                 val - min);
939         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
940                 ((data->zone[nr].range & 0x0f) << 4)
941                 | (data->autofan[nr].freq & 0x07));
942         mutex_unlock(&data->update_lock);
943         return count;
944 }
945 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
946 {
947         struct lm85_data *data = lm85_update_device(dev);
948         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
949 }
950 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
951                 size_t count, int nr)
952 {
953         struct i2c_client *client = to_i2c_client(dev);
954         struct lm85_data *data = i2c_get_clientdata(client);
955         long val = simple_strtol(buf, NULL, 10);
956
957         mutex_lock(&data->update_lock);
958         data->zone[nr].critical = TEMP_TO_REG(val);
959         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
960                 data->zone[nr].critical);
961         mutex_unlock(&data->update_lock);
962         return count;
963 }
964 #define temp_auto(offset)                                               \
965 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
966         char *buf)                                                      \
967 {                                                                       \
968         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
969 }                                                                       \
970 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
971         const char *buf, size_t count)                                  \
972 {                                                                       \
973         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
974 }                                                                       \
975 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
976         char *buf)                                                      \
977 {                                                                       \
978         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
979 }                                                                       \
980 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
981         const char *buf, size_t count)                                  \
982 {                                                                       \
983         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
984 }                                                                       \
985 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
986         char *buf)                                                      \
987 {                                                                       \
988         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
989 }                                                                       \
990 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
991         const char *buf, size_t count)                                  \
992 {                                                                       \
993         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
994 }                                                                       \
995 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
996         char *buf)                                                      \
997 {                                                                       \
998         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
999 }                                                                       \
1000 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
1001         const char *buf, size_t count)                                  \
1002 {                                                                       \
1003         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
1004 }                                                                       \
1005 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
1006                 show_temp##offset##_auto_temp_off,                      \
1007                 set_temp##offset##_auto_temp_off);                      \
1008 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
1009                 show_temp##offset##_auto_temp_min,                      \
1010                 set_temp##offset##_auto_temp_min);                      \
1011 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1012                 show_temp##offset##_auto_temp_max,                      \
1013                 set_temp##offset##_auto_temp_max);                      \
1014 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1015                 show_temp##offset##_auto_temp_crit,                     \
1016                 set_temp##offset##_auto_temp_crit);
1017 temp_auto(1);
1018 temp_auto(2);
1019 temp_auto(3);
1020
1021 static int lm85_attach_adapter(struct i2c_adapter *adapter)
1022 {
1023         if (!(adapter->class & I2C_CLASS_HWMON))
1024                 return 0;
1025         return i2c_probe(adapter, &addr_data, lm85_detect);
1026 }
1027
1028 static int lm85_detect(struct i2c_adapter *adapter, int address,
1029                 int kind)
1030 {
1031         int company, verstep ;
1032         struct i2c_client *new_client = NULL;
1033         struct lm85_data *data;
1034         int err = 0;
1035         const char *type_name = "";
1036
1037         if (!i2c_check_functionality(adapter,
1038                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1039                 /* We need to be able to do byte I/O */
1040                 goto ERROR0 ;
1041         };
1042
1043         /* OK. For now, we presume we have a valid client. We now create the
1044            client structure, even though we cannot fill it completely yet.
1045            But it allows us to access lm85_{read,write}_value. */
1046
1047         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1048                 err = -ENOMEM;
1049                 goto ERROR0;
1050         }
1051
1052         new_client = &data->client;
1053         i2c_set_clientdata(new_client, data);
1054         new_client->addr = address;
1055         new_client->adapter = adapter;
1056         new_client->driver = &lm85_driver;
1057         new_client->flags = 0;
1058
1059         /* Now, we do the remaining detection. */
1060
1061         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1062         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1063
1064         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1065                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1066                 i2c_adapter_id(new_client->adapter), new_client->addr,
1067                 company, verstep);
1068
1069         /* If auto-detecting, Determine the chip type. */
1070         if (kind <= 0) {
1071                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1072                         i2c_adapter_id(adapter), address );
1073                 if( company == LM85_COMPANY_NATIONAL
1074                     && verstep == LM85_VERSTEP_LM85C ) {
1075                         kind = lm85c ;
1076                 } else if( company == LM85_COMPANY_NATIONAL
1077                     && verstep == LM85_VERSTEP_LM85B ) {
1078                         kind = lm85b ;
1079                 } else if( company == LM85_COMPANY_NATIONAL
1080                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1081                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1082                                 " Defaulting to LM85.\n", verstep);
1083                         kind = any_chip ;
1084                 } else if( company == LM85_COMPANY_ANALOG_DEV
1085                     && verstep == LM85_VERSTEP_ADM1027 ) {
1086                         kind = adm1027 ;
1087                 } else if( company == LM85_COMPANY_ANALOG_DEV
1088                     && (verstep == LM85_VERSTEP_ADT7463
1089                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1090                         kind = adt7463 ;
1091                 } else if( company == LM85_COMPANY_ANALOG_DEV
1092                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1093                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1094                                 " Defaulting to Generic LM85.\n", verstep );
1095                         kind = any_chip ;
1096                 } else if( company == LM85_COMPANY_SMSC
1097                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1098                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1099                         /* Unfortunately, we can't tell a '100 from a '101
1100                          * from the registers.  Since a '101 is a '100
1101                          * in a package with fewer pins and therefore no
1102                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1103                          * inputs read 0, then it's a '101.
1104                          */
1105                         kind = emc6d100 ;
1106                 } else if( company == LM85_COMPANY_SMSC
1107                     && verstep == LM85_VERSTEP_EMC6D102) {
1108                         kind = emc6d102 ;
1109                 } else if( company == LM85_COMPANY_SMSC
1110                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1111                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1112                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1113                             " Defaulting to Generic LM85.\n", verstep );
1114                         kind = any_chip ;
1115                 } else if( kind == any_chip
1116                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1117                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1118                         /* Leave kind as "any_chip" */
1119                 } else {
1120                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1121                         /* Not an LM85 ... */
1122                         if( kind == any_chip ) {  /* User used force=x,y */
1123                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1124                                         " found at %d,0x%02x. Try force_lm85c.\n",
1125                                         i2c_adapter_id(adapter), address );
1126                         }
1127                         err = 0 ;
1128                         goto ERROR1;
1129                 }
1130         }
1131
1132         /* Fill in the chip specific driver values */
1133         if ( kind == any_chip ) {
1134                 type_name = "lm85";
1135         } else if ( kind == lm85b ) {
1136                 type_name = "lm85b";
1137         } else if ( kind == lm85c ) {
1138                 type_name = "lm85c";
1139         } else if ( kind == adm1027 ) {
1140                 type_name = "adm1027";
1141         } else if ( kind == adt7463 ) {
1142                 type_name = "adt7463";
1143         } else if ( kind == emc6d100){
1144                 type_name = "emc6d100";
1145         } else if ( kind == emc6d102 ) {
1146                 type_name = "emc6d102";
1147         }
1148         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1149
1150         /* Fill in the remaining client fields */
1151         data->type = kind;
1152         data->valid = 0;
1153         mutex_init(&data->update_lock);
1154
1155         /* Tell the I2C layer a new client has arrived */
1156         if ((err = i2c_attach_client(new_client)))
1157                 goto ERROR1;
1158
1159         /* Set the VRM version */
1160         data->vrm = vid_which_vrm();
1161
1162         /* Initialize the LM85 chip */
1163         lm85_init_client(new_client);
1164
1165         /* Register sysfs hooks */
1166         data->class_dev = hwmon_device_register(&new_client->dev);
1167         if (IS_ERR(data->class_dev)) {
1168                 err = PTR_ERR(data->class_dev);
1169                 goto ERROR2;
1170         }
1171
1172         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1173         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1174         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1175         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1176         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1177         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1178         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1179         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1180         device_create_file(&new_client->dev, &dev_attr_pwm1);
1181         device_create_file(&new_client->dev, &dev_attr_pwm2);
1182         device_create_file(&new_client->dev, &dev_attr_pwm3);
1183         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1184         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1185         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1186         device_create_file(&new_client->dev, &dev_attr_in0_input);
1187         device_create_file(&new_client->dev, &dev_attr_in1_input);
1188         device_create_file(&new_client->dev, &dev_attr_in2_input);
1189         device_create_file(&new_client->dev, &dev_attr_in3_input);
1190         device_create_file(&new_client->dev, &dev_attr_in0_min);
1191         device_create_file(&new_client->dev, &dev_attr_in1_min);
1192         device_create_file(&new_client->dev, &dev_attr_in2_min);
1193         device_create_file(&new_client->dev, &dev_attr_in3_min);
1194         device_create_file(&new_client->dev, &dev_attr_in0_max);
1195         device_create_file(&new_client->dev, &dev_attr_in1_max);
1196         device_create_file(&new_client->dev, &dev_attr_in2_max);
1197         device_create_file(&new_client->dev, &dev_attr_in3_max);
1198         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1199         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1200         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1201         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1202         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1203         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1204         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1205         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1206         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1207         device_create_file(&new_client->dev, &dev_attr_vrm);
1208         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1209         device_create_file(&new_client->dev, &dev_attr_alarms);
1210         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1211         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1212         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1213         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1214         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1215         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1216         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1217         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1218         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1219         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1220         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1221         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1222         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1223         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1224         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1225         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1226         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1227         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1228         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1229         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1230         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1231         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1232         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1233         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1234
1235         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1236            as a sixth digital VID input rather than an analog input. */
1237         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1238         if (!(kind == adt7463 && (data->vid & 0x80))) {
1239                 device_create_file(&new_client->dev, &dev_attr_in4_input);
1240                 device_create_file(&new_client->dev, &dev_attr_in4_min);
1241                 device_create_file(&new_client->dev, &dev_attr_in4_max);
1242         }
1243
1244         return 0;
1245
1246         /* Error out and cleanup code */
1247     ERROR2:
1248         i2c_detach_client(new_client);
1249     ERROR1:
1250         kfree(data);
1251     ERROR0:
1252         return err;
1253 }
1254
1255 static int lm85_detach_client(struct i2c_client *client)
1256 {
1257         struct lm85_data *data = i2c_get_clientdata(client);
1258         hwmon_device_unregister(data->class_dev);
1259         i2c_detach_client(client);
1260         kfree(data);
1261         return 0;
1262 }
1263
1264
1265 static int lm85_read_value(struct i2c_client *client, u8 reg)
1266 {
1267         int res;
1268
1269         /* What size location is it? */
1270         switch( reg ) {
1271         case LM85_REG_FAN(0) :  /* Read WORD data */
1272         case LM85_REG_FAN(1) :
1273         case LM85_REG_FAN(2) :
1274         case LM85_REG_FAN(3) :
1275         case LM85_REG_FAN_MIN(0) :
1276         case LM85_REG_FAN_MIN(1) :
1277         case LM85_REG_FAN_MIN(2) :
1278         case LM85_REG_FAN_MIN(3) :
1279         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1280                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1281                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1282                 break ;
1283         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1284                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1285                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1286                 break ;
1287         default:        /* Read BYTE data */
1288                 res = i2c_smbus_read_byte_data(client, reg);
1289                 break ;
1290         }
1291
1292         return res ;
1293 }
1294
1295 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1296 {
1297         int res ;
1298
1299         switch( reg ) {
1300         case LM85_REG_FAN(0) :  /* Write WORD data */
1301         case LM85_REG_FAN(1) :
1302         case LM85_REG_FAN(2) :
1303         case LM85_REG_FAN(3) :
1304         case LM85_REG_FAN_MIN(0) :
1305         case LM85_REG_FAN_MIN(1) :
1306         case LM85_REG_FAN_MIN(2) :
1307         case LM85_REG_FAN_MIN(3) :
1308         /* NOTE: ALARM is read only, so not included here */
1309                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1310                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1311                 break ;
1312         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1313                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1314                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1315                 break ;
1316         default:        /* Write BYTE data */
1317                 res = i2c_smbus_write_byte_data(client, reg, value);
1318                 break ;
1319         }
1320
1321         return res ;
1322 }
1323
1324 static void lm85_init_client(struct i2c_client *client)
1325 {
1326         int value;
1327         struct lm85_data *data = i2c_get_clientdata(client);
1328
1329         dev_dbg(&client->dev, "Initializing device\n");
1330
1331         /* Warn if part was not "READY" */
1332         value = lm85_read_value(client, LM85_REG_CONFIG);
1333         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1334         if( value & 0x02 ) {
1335                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1336                             i2c_adapter_id(client->adapter), client->addr );
1337         };
1338         if( ! (value & 0x04) ) {
1339                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1340                             i2c_adapter_id(client->adapter), client->addr );
1341         };
1342         if( value & 0x10
1343             && ( data->type == adm1027
1344                 || data->type == adt7463 ) ) {
1345                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1346                         "Please report this to the lm85 maintainer.\n",
1347                             i2c_adapter_id(client->adapter), client->addr );
1348         };
1349
1350         /* WE INTENTIONALLY make no changes to the limits,
1351          *   offsets, pwms, fans and zones.  If they were
1352          *   configured, we don't want to mess with them.
1353          *   If they weren't, the default is 100% PWM, no
1354          *   control and will suffice until 'sensors -s'
1355          *   can be run by the user.
1356          */
1357
1358         /* Start monitoring */
1359         value = lm85_read_value(client, LM85_REG_CONFIG);
1360         /* Try to clear LOCK, Set START, save everything else */
1361         value = (value & ~ 0x02) | 0x01 ;
1362         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1363         lm85_write_value(client, LM85_REG_CONFIG, value);
1364 }
1365
1366 static 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
1372         mutex_lock(&data->update_lock);
1373
1374         if ( !data->valid ||
1375              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1376                 /* Things that change quickly */
1377                 dev_dbg(&client->dev, "Reading sensor values\n");
1378                 
1379                 /* Have to read extended bits first to "freeze" the
1380                  * more significant bits that are read later.
1381                  */
1382                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1383                         int ext1 = lm85_read_value(client,
1384                                                    ADM1027_REG_EXTEND_ADC1);
1385                         int ext2 =  lm85_read_value(client,
1386                                                     ADM1027_REG_EXTEND_ADC2);
1387                         int val = (ext1 << 8) + ext2;
1388
1389                         for(i = 0; i <= 4; i++)
1390                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1391
1392                         for(i = 0; i <= 2; i++)
1393                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1394                 }
1395
1396                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1397                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1398                    other chips ext is always 0 and the value of scale is
1399                    irrelevant. So it is left in 4*/
1400                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1401
1402                 data->vid = lm85_read_value(client, LM85_REG_VID);
1403
1404                 for (i = 0; i <= 3; ++i) {
1405                         data->in[i] =
1406                             lm85_read_value(client, LM85_REG_IN(i));
1407                 }
1408
1409                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1410                         data->in[4] = lm85_read_value(client,
1411                                       LM85_REG_IN(4));
1412                 }
1413
1414                 for (i = 0; i <= 3; ++i) {
1415                         data->fan[i] =
1416                             lm85_read_value(client, LM85_REG_FAN(i));
1417                 }
1418
1419                 for (i = 0; i <= 2; ++i) {
1420                         data->temp[i] =
1421                             lm85_read_value(client, LM85_REG_TEMP(i));
1422                 }
1423
1424                 for (i = 0; i <= 2; ++i) {
1425                         data->pwm[i] =
1426                             lm85_read_value(client, LM85_REG_PWM(i));
1427                 }
1428
1429                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1430
1431                 if ( data->type == adt7463 ) {
1432                         if( data->therm_total < ULONG_MAX - 256 ) {
1433                             data->therm_total +=
1434                                 lm85_read_value(client, ADT7463_REG_THERM );
1435                         }
1436                 } else if ( data->type == emc6d100 ) {
1437                         /* Three more voltage sensors */
1438                         for (i = 5; i <= 7; ++i) {
1439                                 data->in[i] =
1440                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1441                         }
1442                         /* More alarm bits */
1443                         data->alarms |=
1444                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1445                 } else if (data->type == emc6d102 ) {
1446                         /* Have to read LSB bits after the MSB ones because
1447                            the reading of the MSB bits has frozen the
1448                            LSBs (backward from the ADM1027).
1449                          */
1450                         int ext1 = lm85_read_value(client,
1451                                                    EMC6D102_REG_EXTEND_ADC1);
1452                         int ext2 = lm85_read_value(client,
1453                                                    EMC6D102_REG_EXTEND_ADC2);
1454                         int ext3 = lm85_read_value(client,
1455                                                    EMC6D102_REG_EXTEND_ADC3);
1456                         int ext4 = lm85_read_value(client,
1457                                                    EMC6D102_REG_EXTEND_ADC4);
1458                         data->in_ext[0] = ext3 & 0x0f;
1459                         data->in_ext[1] = ext4 & 0x0f;
1460                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1461                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1462                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1463
1464                         data->temp_ext[0] = ext1 & 0x0f;
1465                         data->temp_ext[1] = ext2 & 0x0f;
1466                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1467                 }
1468
1469                 data->last_reading = jiffies ;
1470         };  /* last_reading */
1471
1472         if ( !data->valid ||
1473              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1474                 /* Things that don't change often */
1475                 dev_dbg(&client->dev, "Reading config values\n");
1476
1477                 for (i = 0; i <= 3; ++i) {
1478                         data->in_min[i] =
1479                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1480                         data->in_max[i] =
1481                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1482                 }
1483
1484                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1485                         data->in_min[4] = lm85_read_value(client,
1486                                           LM85_REG_IN_MIN(4));
1487                         data->in_max[4] = lm85_read_value(client,
1488                                           LM85_REG_IN_MAX(4));
1489                 }
1490
1491                 if ( data->type == emc6d100 ) {
1492                         for (i = 5; i <= 7; ++i) {
1493                                 data->in_min[i] =
1494                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1495                                 data->in_max[i] =
1496                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1497                         }
1498                 }
1499
1500                 for (i = 0; i <= 3; ++i) {
1501                         data->fan_min[i] =
1502                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1503                 }
1504
1505                 for (i = 0; i <= 2; ++i) {
1506                         data->temp_min[i] =
1507                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1508                         data->temp_max[i] =
1509                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1510                 }
1511
1512                 for (i = 0; i <= 2; ++i) {
1513                         int val ;
1514                         data->autofan[i].config =
1515                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1516                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1517                         data->autofan[i].freq = val & 0x07 ;
1518                         data->zone[i].range = (val >> 4) & 0x0f ;
1519                         data->autofan[i].min_pwm =
1520                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1521                         data->zone[i].limit =
1522                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1523                         data->zone[i].critical =
1524                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1525                 }
1526
1527                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1528                 data->smooth[0] = i & 0x0f ;
1529                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1530                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1531                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1532                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1533                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1534                 data->smooth[1] = (i>>4) & 0x0f ;
1535                 data->smooth[2] = i & 0x0f ;
1536
1537                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1538                 data->zone[0].hyst = (i>>4) & 0x0f ;
1539                 data->zone[1].hyst = i & 0x0f ;
1540
1541                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1542                 data->zone[2].hyst = (i>>4) & 0x0f ;
1543
1544                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1545                         data->tach_mode = lm85_read_value(client,
1546                                 LM85_REG_TACH_MODE );
1547                         data->spinup_ctl = lm85_read_value(client,
1548                                 LM85_REG_SPINUP_CTL );
1549                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1550                         if ( data->type == adt7463 ) {
1551                                 for (i = 0; i <= 2; ++i) {
1552                                     data->oppoint[i] = lm85_read_value(client,
1553                                         ADT7463_REG_OPPOINT(i) );
1554                                 }
1555                                 data->tmin_ctl = lm85_read_value(client,
1556                                         ADT7463_REG_TMIN_CTL1 );
1557                                 data->therm_limit = lm85_read_value(client,
1558                                         ADT7463_REG_THERM_LIMIT );
1559                         }
1560                         for (i = 0; i <= 2; ++i) {
1561                             data->temp_offset[i] = lm85_read_value(client,
1562                                 ADM1027_REG_TEMP_OFFSET(i) );
1563                         }
1564                         data->tach_mode = lm85_read_value(client,
1565                                 ADM1027_REG_CONFIG3 );
1566                         data->fan_ppr = lm85_read_value(client,
1567                                 ADM1027_REG_FAN_PPR );
1568                 }
1569         
1570                 data->last_config = jiffies;
1571         };  /* last_config */
1572
1573         data->valid = 1;
1574
1575         mutex_unlock(&data->update_lock);
1576
1577         return data;
1578 }
1579
1580
1581 static int __init sm_lm85_init(void)
1582 {
1583         return i2c_add_driver(&lm85_driver);
1584 }
1585
1586 static void  __exit sm_lm85_exit(void)
1587 {
1588         i2c_del_driver(&lm85_driver);
1589 }
1590
1591 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1592  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1593  *     post 2.7.0 CVS changes.
1594  */
1595 MODULE_LICENSE("GPL");
1596 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1597 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1598
1599 module_init(sm_lm85_init);
1600 module_exit(sm_lm85_exit);