[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (7/9)
[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/i2c-sensor.h>
32 #include <linux/i2c-vid.h>
33 #include <linux/hwmon.h>
34 #include <linux/err.h>
35
36 /* Addresses to scan */
37 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
38
39 /* Insmod parameters */
40 SENSORS_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 /* i2c-vid.h defines vid_from_reg() */
286 #define VID_FROM_REG(val,vrm) (vid_from_reg((val),(vrm)))
287
288 /* Unlike some other drivers we DO NOT set initial limits.  Use
289  * the config file to set limits.  Some users have reported
290  * motherboards shutting down when we set limits in a previous
291  * version of the driver.
292  */
293
294 /* Chip sampling rates
295  *
296  * Some sensors are not updated more frequently than once per second
297  *    so it doesn't make sense to read them more often than that.
298  *    We cache the results and return the saved data if the driver
299  *    is called again before a second has elapsed.
300  *
301  * Also, there is significant configuration data for this chip
302  *    given the automatic PWM fan control that is possible.  There
303  *    are about 47 bytes of config data to only 22 bytes of actual
304  *    readings.  So, we keep the config data up to date in the cache
305  *    when it is written and only sample it once every 1 *minute*
306  */
307 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
308 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
309
310 /* For each registered LM85, we need to keep some data in memory. That
311    data is pointed to by lm85_list[NR]->data. The structure itself is
312    dynamically allocated, at the same time when a new lm85 client is
313    allocated. */
314
315 /* LM85 can automatically adjust fan speeds based on temperature
316  * This structure encapsulates an entire Zone config.  There are
317  * three zones (one for each temperature input) on the lm85
318  */
319 struct lm85_zone {
320         s8 limit;       /* Low temp limit */
321         u8 hyst;        /* Low limit hysteresis. (0-15) */
322         u8 range;       /* Temp range, encoded */
323         s8 critical;    /* "All fans ON" temp limit */
324         u8 off_desired; /* Actual "off" temperature specified.  Preserved 
325                          * to prevent "drift" as other autofan control
326                          * values change.
327                          */
328         u8 max_desired; /* Actual "max" temperature specified.  Preserved 
329                          * to prevent "drift" as other autofan control
330                          * values change.
331                          */
332 };
333
334 struct lm85_autofan {
335         u8 config;      /* Register value */
336         u8 freq;        /* PWM frequency, encoded */
337         u8 min_pwm;     /* Minimum PWM value, encoded */
338         u8 min_off;     /* Min PWM or OFF below "limit", flag */
339 };
340
341 struct lm85_data {
342         struct i2c_client client;
343         struct class_device *class_dev;
344         struct semaphore lock;
345         enum chips type;
346
347         struct semaphore update_lock;
348         int valid;              /* !=0 if following fields are valid */
349         unsigned long last_reading;     /* In jiffies */
350         unsigned long last_config;      /* In jiffies */
351
352         u8 in[8];               /* Register value */
353         u8 in_max[8];           /* Register value */
354         u8 in_min[8];           /* Register value */
355         s8 temp[3];             /* Register value */
356         s8 temp_min[3];         /* Register value */
357         s8 temp_max[3];         /* Register value */
358         s8 temp_offset[3];      /* Register value */
359         u16 fan[4];             /* Register value */
360         u16 fan_min[4];         /* Register value */
361         u8 pwm[3];              /* Register value */
362         u8 spinup_ctl;          /* Register encoding, combined */
363         u8 tach_mode;           /* Register encoding, combined */
364         u8 temp_ext[3];         /* Decoded values */
365         u8 in_ext[8];           /* Decoded values */
366         u8 adc_scale;           /* ADC Extended bits scaling factor */
367         u8 fan_ppr;             /* Register value */
368         u8 smooth[3];           /* Register encoding */
369         u8 vid;                 /* Register value */
370         u8 vrm;                 /* VRM version */
371         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
372         u8 oppoint[3];          /* Register value */
373         u16 tmin_ctl;           /* Register value */
374         unsigned long therm_total; /* Cummulative therm count */
375         u8 therm_limit;         /* Register value */
376         u32 alarms;             /* Register encoding, combined */
377         struct lm85_autofan autofan[3];
378         struct lm85_zone zone[3];
379 };
380
381 static int lm85_attach_adapter(struct i2c_adapter *adapter);
382 static int lm85_detect(struct i2c_adapter *adapter, int address,
383                         int kind);
384 static int lm85_detach_client(struct i2c_client *client);
385
386 static int lm85_read_value(struct i2c_client *client, u8 register);
387 static int lm85_write_value(struct i2c_client *client, u8 register, int value);
388 static struct lm85_data *lm85_update_device(struct device *dev);
389 static void lm85_init_client(struct i2c_client *client);
390
391
392 static struct i2c_driver lm85_driver = {
393         .owner          = THIS_MODULE,
394         .name           = "lm85",
395         .id             = I2C_DRIVERID_LM85,
396         .flags          = I2C_DF_NOTIFY,
397         .attach_adapter = lm85_attach_adapter,
398         .detach_client  = lm85_detach_client,
399 };
400
401
402 /* 4 Fans */
403 static ssize_t show_fan(struct device *dev, char *buf, int nr)
404 {
405         struct lm85_data *data = lm85_update_device(dev);
406         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
407 }
408 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
409 {
410         struct lm85_data *data = lm85_update_device(dev);
411         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
412 }
413 static ssize_t set_fan_min(struct device *dev, const char *buf, 
414                 size_t count, int nr)
415 {
416         struct i2c_client *client = to_i2c_client(dev);
417         struct lm85_data *data = i2c_get_clientdata(client);
418         long val = simple_strtol(buf, NULL, 10);
419
420         down(&data->update_lock);
421         data->fan_min[nr] = FAN_TO_REG(val);
422         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
423         up(&data->update_lock);
424         return count;
425 }
426
427 #define show_fan_offset(offset)                                         \
428 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
429 {                                                                       \
430         return show_fan(dev, buf, offset - 1);                          \
431 }                                                                       \
432 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
433 {                                                                       \
434         return show_fan_min(dev, buf, offset - 1);                      \
435 }                                                                       \
436 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
437         const char *buf, size_t count)                                  \
438 {                                                                       \
439         return set_fan_min(dev, buf, count, offset - 1);                \
440 }                                                                       \
441 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
442                 NULL);                                                  \
443 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
444                 show_fan_##offset##_min, set_fan_##offset##_min);
445
446 show_fan_offset(1);
447 show_fan_offset(2);
448 show_fan_offset(3);
449 show_fan_offset(4);
450
451 /* vid, vrm, alarms */
452
453 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
454 {
455         struct lm85_data *data = lm85_update_device(dev);
456         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
457 }
458
459 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
460
461 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
462 {
463         struct lm85_data *data = lm85_update_device(dev);
464         return sprintf(buf, "%ld\n", (long) data->vrm);
465 }
466
467 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
468 {
469         struct i2c_client *client = to_i2c_client(dev);
470         struct lm85_data *data = i2c_get_clientdata(client);
471         u32 val;
472
473         val = simple_strtoul(buf, NULL, 10);
474         data->vrm = val;
475         return count;
476 }
477
478 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
479
480 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
481 {
482         struct lm85_data *data = lm85_update_device(dev);
483         return sprintf(buf, "%u\n", data->alarms);
484 }
485
486 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
487
488 /* pwm */
489
490 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
491 {
492         struct lm85_data *data = lm85_update_device(dev);
493         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
494 }
495 static ssize_t set_pwm(struct device *dev, const char *buf, 
496                 size_t count, int nr)
497 {
498         struct i2c_client *client = to_i2c_client(dev);
499         struct lm85_data *data = i2c_get_clientdata(client);
500         long val = simple_strtol(buf, NULL, 10);
501
502         down(&data->update_lock);
503         data->pwm[nr] = PWM_TO_REG(val);
504         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
505         up(&data->update_lock);
506         return count;
507 }
508 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
509 {
510         struct lm85_data *data = lm85_update_device(dev);
511         int     pwm_zone;
512
513         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
514         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
515 }
516
517 #define show_pwm_reg(offset)                                            \
518 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
519 {                                                                       \
520         return show_pwm(dev, buf, offset - 1);                          \
521 }                                                                       \
522 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
523                                  const char *buf, size_t count)         \
524 {                                                                       \
525         return set_pwm(dev, buf, count, offset - 1);                    \
526 }                                                                       \
527 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
528 {                                                                       \
529         return show_pwm_enable(dev, buf, offset - 1);                   \
530 }                                                                       \
531 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
532                 show_pwm_##offset, set_pwm_##offset);                   \
533 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
534                 show_pwm_enable##offset, NULL);
535
536 show_pwm_reg(1);
537 show_pwm_reg(2);
538 show_pwm_reg(3);
539
540 /* Voltages */
541
542 static ssize_t show_in(struct device *dev, char *buf, int nr)
543 {
544         struct lm85_data *data = lm85_update_device(dev);
545         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
546                                                      data->in[nr],
547                                                      data->in_ext[nr],
548                                                      data->adc_scale) );
549 }
550 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
551 {
552         struct lm85_data *data = lm85_update_device(dev);
553         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
554 }
555 static ssize_t set_in_min(struct device *dev, const char *buf, 
556                 size_t count, int nr)
557 {
558         struct i2c_client *client = to_i2c_client(dev);
559         struct lm85_data *data = i2c_get_clientdata(client);
560         long val = simple_strtol(buf, NULL, 10);
561
562         down(&data->update_lock);
563         data->in_min[nr] = INS_TO_REG(nr, val);
564         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
565         up(&data->update_lock);
566         return count;
567 }
568 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
569 {
570         struct lm85_data *data = lm85_update_device(dev);
571         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
572 }
573 static ssize_t set_in_max(struct device *dev, const char *buf, 
574                 size_t count, int nr)
575 {
576         struct i2c_client *client = to_i2c_client(dev);
577         struct lm85_data *data = i2c_get_clientdata(client);
578         long val = simple_strtol(buf, NULL, 10);
579
580         down(&data->update_lock);
581         data->in_max[nr] = INS_TO_REG(nr, val);
582         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
583         up(&data->update_lock);
584         return count;
585 }
586 #define show_in_reg(offset)                                             \
587 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
588 {                                                                       \
589         return show_in(dev, buf, offset);                               \
590 }                                                                       \
591 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
592 {                                                                       \
593         return show_in_min(dev, buf, offset);                           \
594 }                                                                       \
595 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
596 {                                                                       \
597         return show_in_max(dev, buf, offset);                           \
598 }                                                                       \
599 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
600         const char *buf, size_t count)                                  \
601 {                                                                       \
602         return set_in_min(dev, buf, count, offset);                     \
603 }                                                                       \
604 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
605         const char *buf, size_t count)                                  \
606 {                                                                       \
607         return set_in_max(dev, buf, count, offset);                     \
608 }                                                                       \
609 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
610                 NULL);                                                  \
611 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
612                 show_in_##offset##_min, set_in_##offset##_min);         \
613 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
614                 show_in_##offset##_max, set_in_##offset##_max);
615
616 show_in_reg(0);
617 show_in_reg(1);
618 show_in_reg(2);
619 show_in_reg(3);
620 show_in_reg(4);
621
622 /* Temps */
623
624 static ssize_t show_temp(struct device *dev, char *buf, int nr)
625 {
626         struct lm85_data *data = lm85_update_device(dev);
627         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
628                                                     data->temp_ext[nr],
629                                                     data->adc_scale) );
630 }
631 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
632 {
633         struct lm85_data *data = lm85_update_device(dev);
634         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
635 }
636 static ssize_t set_temp_min(struct device *dev, const char *buf, 
637                 size_t count, int nr)
638 {
639         struct i2c_client *client = to_i2c_client(dev);
640         struct lm85_data *data = i2c_get_clientdata(client);
641         long val = simple_strtol(buf, NULL, 10);
642
643         down(&data->update_lock);
644         data->temp_min[nr] = TEMP_TO_REG(val);
645         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
646         up(&data->update_lock);
647         return count;
648 }
649 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
650 {
651         struct lm85_data *data = lm85_update_device(dev);
652         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
653 }
654 static ssize_t set_temp_max(struct device *dev, const char *buf, 
655                 size_t count, int nr)
656 {
657         struct i2c_client *client = to_i2c_client(dev);
658         struct lm85_data *data = i2c_get_clientdata(client);
659         long val = simple_strtol(buf, NULL, 10);        
660
661         down(&data->update_lock);
662         data->temp_max[nr] = TEMP_TO_REG(val);
663         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
664         up(&data->update_lock);
665         return count;
666 }
667 #define show_temp_reg(offset)                                           \
668 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
669 {                                                                       \
670         return show_temp(dev, buf, offset - 1);                         \
671 }                                                                       \
672 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
673 {                                                                       \
674         return show_temp_min(dev, buf, offset - 1);                     \
675 }                                                                       \
676 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
677 {                                                                       \
678         return show_temp_max(dev, buf, offset - 1);                     \
679 }                                                                       \
680 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
681         const char *buf, size_t count)                                  \
682 {                                                                       \
683         return set_temp_min(dev, buf, count, offset - 1);               \
684 }                                                                       \
685 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
686         const char *buf, size_t count)                                  \
687 {                                                                       \
688         return set_temp_max(dev, buf, count, offset - 1);               \
689 }                                                                       \
690 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
691                 NULL);                                                  \
692 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
693                 show_temp_##offset##_min, set_temp_##offset##_min);     \
694 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
695                 show_temp_##offset##_max, set_temp_##offset##_max);
696
697 show_temp_reg(1);
698 show_temp_reg(2);
699 show_temp_reg(3);
700
701
702 /* Automatic PWM control */
703
704 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
705 {
706         struct lm85_data *data = lm85_update_device(dev);
707         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
708 }
709 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
710         size_t count, int nr)
711 {
712         struct i2c_client *client = to_i2c_client(dev);
713         struct lm85_data *data = i2c_get_clientdata(client);
714         long val = simple_strtol(buf, NULL, 10);   
715
716         down(&data->update_lock);
717         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
718                 | ZONE_TO_REG(val) ;
719         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
720                 data->autofan[nr].config);
721         up(&data->update_lock);
722         return count;
723 }
724 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
725 {
726         struct lm85_data *data = lm85_update_device(dev);
727         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
728 }
729 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
730         size_t count, int nr)
731 {
732         struct i2c_client *client = to_i2c_client(dev);
733         struct lm85_data *data = i2c_get_clientdata(client);
734         long val = simple_strtol(buf, NULL, 10);
735
736         down(&data->update_lock);
737         data->autofan[nr].min_pwm = PWM_TO_REG(val);
738         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
739                 data->autofan[nr].min_pwm);
740         up(&data->update_lock);
741         return count;
742 }
743 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
744 {
745         struct lm85_data *data = lm85_update_device(dev);
746         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
747 }
748 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
749         size_t count, int nr)
750 {
751         struct i2c_client *client = to_i2c_client(dev);
752         struct lm85_data *data = i2c_get_clientdata(client);
753         long val = simple_strtol(buf, NULL, 10);
754
755         down(&data->update_lock);
756         data->autofan[nr].min_off = val;
757         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
758                 | data->syncpwm3
759                 | (data->autofan[0].min_off ? 0x20 : 0)
760                 | (data->autofan[1].min_off ? 0x40 : 0)
761                 | (data->autofan[2].min_off ? 0x80 : 0)
762         );
763         up(&data->update_lock);
764         return count;
765 }
766 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
767 {
768         struct lm85_data *data = lm85_update_device(dev);
769         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
770 }
771 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
772                 size_t count, int nr)
773 {
774         struct i2c_client *client = to_i2c_client(dev);
775         struct lm85_data *data = i2c_get_clientdata(client);
776         long val = simple_strtol(buf, NULL, 10);
777
778         down(&data->update_lock);
779         data->autofan[nr].freq = FREQ_TO_REG(val);
780         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
781                 (data->zone[nr].range << 4)
782                 | data->autofan[nr].freq
783         ); 
784         up(&data->update_lock);
785         return count;
786 }
787 #define pwm_auto(offset)                                                \
788 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
789         char *buf)                                                      \
790 {                                                                       \
791         return show_pwm_auto_channels(dev, buf, offset - 1);            \
792 }                                                                       \
793 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
794         const char *buf, size_t count)                                  \
795 {                                                                       \
796         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
797 }                                                                       \
798 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
799         char *buf)                                                      \
800 {                                                                       \
801         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
802 }                                                                       \
803 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
804         const char *buf, size_t count)                                  \
805 {                                                                       \
806         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
807 }                                                                       \
808 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
809         char *buf)                                                      \
810 {                                                                       \
811         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
812 }                                                                       \
813 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
814         const char *buf, size_t count)                                  \
815 {                                                                       \
816         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
817 }                                                                       \
818 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
819         char *buf)                                                      \
820 {                                                                       \
821         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
822 }                                                                       \
823 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
824         const char *buf, size_t count)                                  \
825 {                                                                       \
826         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
827 }                                                                       \
828 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
829                 show_pwm##offset##_auto_channels,                       \
830                 set_pwm##offset##_auto_channels);                       \
831 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
832                 show_pwm##offset##_auto_pwm_min,                        \
833                 set_pwm##offset##_auto_pwm_min);                        \
834 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
835                 show_pwm##offset##_auto_pwm_minctl,                     \
836                 set_pwm##offset##_auto_pwm_minctl);                     \
837 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
838                 show_pwm##offset##_auto_pwm_freq,                       \
839                 set_pwm##offset##_auto_pwm_freq);              
840 pwm_auto(1);
841 pwm_auto(2);
842 pwm_auto(3);
843
844 /* Temperature settings for automatic PWM control */
845
846 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
847 {
848         struct lm85_data *data = lm85_update_device(dev);
849         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
850                 HYST_FROM_REG(data->zone[nr].hyst));
851 }
852 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
853         size_t count, int nr)
854 {
855         struct i2c_client *client = to_i2c_client(dev);
856         struct lm85_data *data = i2c_get_clientdata(client);
857         int min;
858         long val = simple_strtol(buf, NULL, 10);
859
860         down(&data->update_lock);
861         min = TEMP_FROM_REG(data->zone[nr].limit);
862         data->zone[nr].off_desired = TEMP_TO_REG(val);
863         data->zone[nr].hyst = HYST_TO_REG(min - val);
864         if ( nr == 0 || nr == 1 ) {
865                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
866                         (data->zone[0].hyst << 4)
867                         | data->zone[1].hyst
868                         );
869         } else {
870                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
871                         (data->zone[2].hyst << 4)
872                 );
873         }
874         up(&data->update_lock);
875         return count;
876 }
877 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
878 {
879         struct lm85_data *data = lm85_update_device(dev);
880         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
881 }
882 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
883         size_t count, int nr)
884 {
885         struct i2c_client *client = to_i2c_client(dev);
886         struct lm85_data *data = i2c_get_clientdata(client);
887         long val = simple_strtol(buf, NULL, 10);
888
889         down(&data->update_lock);
890         data->zone[nr].limit = TEMP_TO_REG(val);
891         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
892                 data->zone[nr].limit);
893
894 /* Update temp_auto_max and temp_auto_range */
895         data->zone[nr].range = RANGE_TO_REG(
896                 TEMP_FROM_REG(data->zone[nr].max_desired) -
897                 TEMP_FROM_REG(data->zone[nr].limit));
898         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
899                 ((data->zone[nr].range & 0x0f) << 4)
900                 | (data->autofan[nr].freq & 0x07));
901
902 /* Update temp_auto_hyst and temp_auto_off */
903         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
904                 data->zone[nr].limit) - TEMP_FROM_REG(
905                 data->zone[nr].off_desired));
906         if ( nr == 0 || nr == 1 ) {
907                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
908                         (data->zone[0].hyst << 4)
909                         | data->zone[1].hyst
910                         );
911         } else {
912                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
913                         (data->zone[2].hyst << 4)
914                 );
915         }
916         up(&data->update_lock);
917         return count;
918 }
919 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
920 {
921         struct lm85_data *data = lm85_update_device(dev);
922         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
923                 RANGE_FROM_REG(data->zone[nr].range));
924 }
925 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
926         size_t count, int nr)
927 {
928         struct i2c_client *client = to_i2c_client(dev);
929         struct lm85_data *data = i2c_get_clientdata(client);
930         int min;
931         long val = simple_strtol(buf, NULL, 10);
932
933         down(&data->update_lock);
934         min = TEMP_FROM_REG(data->zone[nr].limit);
935         data->zone[nr].max_desired = TEMP_TO_REG(val);
936         data->zone[nr].range = RANGE_TO_REG(
937                 val - min);
938         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
939                 ((data->zone[nr].range & 0x0f) << 4)
940                 | (data->autofan[nr].freq & 0x07));
941         up(&data->update_lock);
942         return count;
943 }
944 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
945 {
946         struct lm85_data *data = lm85_update_device(dev);
947         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
948 }
949 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
950                 size_t count, int nr)
951 {
952         struct i2c_client *client = to_i2c_client(dev);
953         struct lm85_data *data = i2c_get_clientdata(client);
954         long val = simple_strtol(buf, NULL, 10);
955
956         down(&data->update_lock);
957         data->zone[nr].critical = TEMP_TO_REG(val);
958         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
959                 data->zone[nr].critical);
960         up(&data->update_lock);
961         return count;
962 }
963 #define temp_auto(offset)                                               \
964 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
965         char *buf)                                                      \
966 {                                                                       \
967         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
968 }                                                                       \
969 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
970         const char *buf, size_t count)                                  \
971 {                                                                       \
972         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
973 }                                                                       \
974 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
975         char *buf)                                                      \
976 {                                                                       \
977         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
978 }                                                                       \
979 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
980         const char *buf, size_t count)                                  \
981 {                                                                       \
982         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
983 }                                                                       \
984 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
985         char *buf)                                                      \
986 {                                                                       \
987         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
988 }                                                                       \
989 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
990         const char *buf, size_t count)                                  \
991 {                                                                       \
992         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
993 }                                                                       \
994 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
995         char *buf)                                                      \
996 {                                                                       \
997         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
998 }                                                                       \
999 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
1000         const char *buf, size_t count)                                  \
1001 {                                                                       \
1002         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
1003 }                                                                       \
1004 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
1005                 show_temp##offset##_auto_temp_off,                      \
1006                 set_temp##offset##_auto_temp_off);                      \
1007 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
1008                 show_temp##offset##_auto_temp_min,                      \
1009                 set_temp##offset##_auto_temp_min);                      \
1010 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1011                 show_temp##offset##_auto_temp_max,                      \
1012                 set_temp##offset##_auto_temp_max);                      \
1013 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1014                 show_temp##offset##_auto_temp_crit,                     \
1015                 set_temp##offset##_auto_temp_crit);
1016 temp_auto(1);
1017 temp_auto(2);
1018 temp_auto(3);
1019
1020 int lm85_attach_adapter(struct i2c_adapter *adapter)
1021 {
1022         if (!(adapter->class & I2C_CLASS_HWMON))
1023                 return 0;
1024         return i2c_detect(adapter, &addr_data, lm85_detect);
1025 }
1026
1027 int lm85_detect(struct i2c_adapter *adapter, int address,
1028                 int kind)
1029 {
1030         int company, verstep ;
1031         struct i2c_client *new_client = NULL;
1032         struct lm85_data *data;
1033         int err = 0;
1034         const char *type_name = "";
1035
1036         if (i2c_is_isa_adapter(adapter)) {
1037                 /* This chip has no ISA interface */
1038                 goto ERROR0 ;
1039         };
1040
1041         if (!i2c_check_functionality(adapter,
1042                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1043                 /* We need to be able to do byte I/O */
1044                 goto ERROR0 ;
1045         };
1046
1047         /* OK. For now, we presume we have a valid client. We now create the
1048            client structure, even though we cannot fill it completely yet.
1049            But it allows us to access lm85_{read,write}_value. */
1050
1051         if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1052                 err = -ENOMEM;
1053                 goto ERROR0;
1054         }
1055         memset(data, 0, sizeof(struct lm85_data));
1056
1057         new_client = &data->client;
1058         i2c_set_clientdata(new_client, data);
1059         new_client->addr = address;
1060         new_client->adapter = adapter;
1061         new_client->driver = &lm85_driver;
1062         new_client->flags = 0;
1063
1064         /* Now, we do the remaining detection. */
1065
1066         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1067         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1068
1069         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1070                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1071                 i2c_adapter_id(new_client->adapter), new_client->addr,
1072                 company, verstep);
1073
1074         /* If auto-detecting, Determine the chip type. */
1075         if (kind <= 0) {
1076                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1077                         i2c_adapter_id(adapter), address );
1078                 if( company == LM85_COMPANY_NATIONAL
1079                     && verstep == LM85_VERSTEP_LM85C ) {
1080                         kind = lm85c ;
1081                 } else if( company == LM85_COMPANY_NATIONAL
1082                     && verstep == LM85_VERSTEP_LM85B ) {
1083                         kind = lm85b ;
1084                 } else if( company == LM85_COMPANY_NATIONAL
1085                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1086                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1087                                 " Defaulting to LM85.\n", verstep);
1088                         kind = any_chip ;
1089                 } else if( company == LM85_COMPANY_ANALOG_DEV
1090                     && verstep == LM85_VERSTEP_ADM1027 ) {
1091                         kind = adm1027 ;
1092                 } else if( company == LM85_COMPANY_ANALOG_DEV
1093                     && (verstep == LM85_VERSTEP_ADT7463
1094                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1095                         kind = adt7463 ;
1096                 } else if( company == LM85_COMPANY_ANALOG_DEV
1097                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1098                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1099                                 " Defaulting to Generic LM85.\n", verstep );
1100                         kind = any_chip ;
1101                 } else if( company == LM85_COMPANY_SMSC
1102                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1103                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1104                         /* Unfortunately, we can't tell a '100 from a '101
1105                          * from the registers.  Since a '101 is a '100
1106                          * in a package with fewer pins and therefore no
1107                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1108                          * inputs read 0, then it's a '101.
1109                          */
1110                         kind = emc6d100 ;
1111                 } else if( company == LM85_COMPANY_SMSC
1112                     && verstep == LM85_VERSTEP_EMC6D102) {
1113                         kind = emc6d102 ;
1114                 } else if( company == LM85_COMPANY_SMSC
1115                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1116                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1117                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1118                             " Defaulting to Generic LM85.\n", verstep );
1119                         kind = any_chip ;
1120                 } else if( kind == any_chip
1121                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1122                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1123                         /* Leave kind as "any_chip" */
1124                 } else {
1125                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1126                         /* Not an LM85 ... */
1127                         if( kind == any_chip ) {  /* User used force=x,y */
1128                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1129                                         " found at %d,0x%02x. Try force_lm85c.\n",
1130                                         i2c_adapter_id(adapter), address );
1131                         }
1132                         err = 0 ;
1133                         goto ERROR1;
1134                 }
1135         }
1136
1137         /* Fill in the chip specific driver values */
1138         if ( kind == any_chip ) {
1139                 type_name = "lm85";
1140         } else if ( kind == lm85b ) {
1141                 type_name = "lm85b";
1142         } else if ( kind == lm85c ) {
1143                 type_name = "lm85c";
1144         } else if ( kind == adm1027 ) {
1145                 type_name = "adm1027";
1146         } else if ( kind == adt7463 ) {
1147                 type_name = "adt7463";
1148         } else if ( kind == emc6d100){
1149                 type_name = "emc6d100";
1150         } else if ( kind == emc6d102 ) {
1151                 type_name = "emc6d102";
1152         }
1153         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1154
1155         /* Fill in the remaining client fields */
1156         data->type = kind;
1157         data->valid = 0;
1158         init_MUTEX(&data->update_lock);
1159
1160         /* Tell the I2C layer a new client has arrived */
1161         if ((err = i2c_attach_client(new_client)))
1162                 goto ERROR1;
1163
1164         /* Set the VRM version */
1165         data->vrm = i2c_which_vrm();
1166
1167         /* Initialize the LM85 chip */
1168         lm85_init_client(new_client);
1169
1170         /* Register sysfs hooks */
1171         data->class_dev = hwmon_device_register(&new_client->dev);
1172         if (IS_ERR(data->class_dev)) {
1173                 err = PTR_ERR(data->class_dev);
1174                 goto ERROR2;
1175         }
1176
1177         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1178         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1179         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1180         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1181         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1182         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1183         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1184         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1185         device_create_file(&new_client->dev, &dev_attr_pwm1);
1186         device_create_file(&new_client->dev, &dev_attr_pwm2);
1187         device_create_file(&new_client->dev, &dev_attr_pwm3);
1188         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1189         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1190         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1191         device_create_file(&new_client->dev, &dev_attr_in0_input);
1192         device_create_file(&new_client->dev, &dev_attr_in1_input);
1193         device_create_file(&new_client->dev, &dev_attr_in2_input);
1194         device_create_file(&new_client->dev, &dev_attr_in3_input);
1195         device_create_file(&new_client->dev, &dev_attr_in4_input);
1196         device_create_file(&new_client->dev, &dev_attr_in0_min);
1197         device_create_file(&new_client->dev, &dev_attr_in1_min);
1198         device_create_file(&new_client->dev, &dev_attr_in2_min);
1199         device_create_file(&new_client->dev, &dev_attr_in3_min);
1200         device_create_file(&new_client->dev, &dev_attr_in4_min);
1201         device_create_file(&new_client->dev, &dev_attr_in0_max);
1202         device_create_file(&new_client->dev, &dev_attr_in1_max);
1203         device_create_file(&new_client->dev, &dev_attr_in2_max);
1204         device_create_file(&new_client->dev, &dev_attr_in3_max);
1205         device_create_file(&new_client->dev, &dev_attr_in4_max);
1206         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1207         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1208         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1209         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1210         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1211         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1212         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1213         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1214         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1215         device_create_file(&new_client->dev, &dev_attr_vrm);
1216         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1217         device_create_file(&new_client->dev, &dev_attr_alarms);
1218         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1219         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1220         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1221         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1222         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1223         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1224         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1225         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1226         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1227         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1228         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1229         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1230         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1231         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1232         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1233         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1234         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1235         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1236         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1237         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1238         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1239         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1240         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1241         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1242
1243         return 0;
1244
1245         /* Error out and cleanup code */
1246     ERROR2:
1247         i2c_detach_client(new_client);
1248     ERROR1:
1249         kfree(data);
1250     ERROR0:
1251         return err;
1252 }
1253
1254 int lm85_detach_client(struct i2c_client *client)
1255 {
1256         struct lm85_data *data = i2c_get_clientdata(client);
1257         hwmon_device_unregister(data->class_dev);
1258         i2c_detach_client(client);
1259         kfree(data);
1260         return 0;
1261 }
1262
1263
1264 int lm85_read_value(struct i2c_client *client, u8 reg)
1265 {
1266         int res;
1267
1268         /* What size location is it? */
1269         switch( reg ) {
1270         case LM85_REG_FAN(0) :  /* Read WORD data */
1271         case LM85_REG_FAN(1) :
1272         case LM85_REG_FAN(2) :
1273         case LM85_REG_FAN(3) :
1274         case LM85_REG_FAN_MIN(0) :
1275         case LM85_REG_FAN_MIN(1) :
1276         case LM85_REG_FAN_MIN(2) :
1277         case LM85_REG_FAN_MIN(3) :
1278         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1279                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1280                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1281                 break ;
1282         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1283                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1284                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1285                 break ;
1286         default:        /* Read BYTE data */
1287                 res = i2c_smbus_read_byte_data(client, reg);
1288                 break ;
1289         }
1290
1291         return res ;
1292 }
1293
1294 int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1295 {
1296         int res ;
1297
1298         switch( reg ) {
1299         case LM85_REG_FAN(0) :  /* Write WORD data */
1300         case LM85_REG_FAN(1) :
1301         case LM85_REG_FAN(2) :
1302         case LM85_REG_FAN(3) :
1303         case LM85_REG_FAN_MIN(0) :
1304         case LM85_REG_FAN_MIN(1) :
1305         case LM85_REG_FAN_MIN(2) :
1306         case LM85_REG_FAN_MIN(3) :
1307         /* NOTE: ALARM is read only, so not included here */
1308                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1309                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1310                 break ;
1311         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1312                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1313                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1314                 break ;
1315         default:        /* Write BYTE data */
1316                 res = i2c_smbus_write_byte_data(client, reg, value);
1317                 break ;
1318         }
1319
1320         return res ;
1321 }
1322
1323 void lm85_init_client(struct i2c_client *client)
1324 {
1325         int value;
1326         struct lm85_data *data = i2c_get_clientdata(client);
1327
1328         dev_dbg(&client->dev, "Initializing device\n");
1329
1330         /* Warn if part was not "READY" */
1331         value = lm85_read_value(client, LM85_REG_CONFIG);
1332         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1333         if( value & 0x02 ) {
1334                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1335                             i2c_adapter_id(client->adapter), client->addr );
1336         };
1337         if( ! (value & 0x04) ) {
1338                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1339                             i2c_adapter_id(client->adapter), client->addr );
1340         };
1341         if( value & 0x10
1342             && ( data->type == adm1027
1343                 || data->type == adt7463 ) ) {
1344                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1345                         "Please report this to the lm85 maintainer.\n",
1346                             i2c_adapter_id(client->adapter), client->addr );
1347         };
1348
1349         /* WE INTENTIONALLY make no changes to the limits,
1350          *   offsets, pwms, fans and zones.  If they were
1351          *   configured, we don't want to mess with them.
1352          *   If they weren't, the default is 100% PWM, no
1353          *   control and will suffice until 'sensors -s'
1354          *   can be run by the user.
1355          */
1356
1357         /* Start monitoring */
1358         value = lm85_read_value(client, LM85_REG_CONFIG);
1359         /* Try to clear LOCK, Set START, save everything else */
1360         value = (value & ~ 0x02) | 0x01 ;
1361         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1362         lm85_write_value(client, LM85_REG_CONFIG, value);
1363 }
1364
1365 static struct lm85_data *lm85_update_device(struct device *dev)
1366 {
1367         struct i2c_client *client = to_i2c_client(dev);
1368         struct lm85_data *data = i2c_get_clientdata(client);
1369         int i;
1370
1371         down(&data->update_lock);
1372
1373         if ( !data->valid ||
1374              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1375                 /* Things that change quickly */
1376                 dev_dbg(&client->dev, "Reading sensor values\n");
1377                 
1378                 /* Have to read extended bits first to "freeze" the
1379                  * more significant bits that are read later.
1380                  */
1381                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1382                         int ext1 = lm85_read_value(client,
1383                                                    ADM1027_REG_EXTEND_ADC1);
1384                         int ext2 =  lm85_read_value(client,
1385                                                     ADM1027_REG_EXTEND_ADC2);
1386                         int val = (ext1 << 8) + ext2;
1387
1388                         for(i = 0; i <= 4; i++)
1389                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1390
1391                         for(i = 0; i <= 2; i++)
1392                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1393                 }
1394
1395                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1396                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1397                    other chips ext is always 0 and the value of scale is
1398                    irrelevant. So it is left in 4*/
1399                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1400
1401                 for (i = 0; i <= 4; ++i) {
1402                         data->in[i] =
1403                             lm85_read_value(client, LM85_REG_IN(i));
1404                 }
1405
1406                 for (i = 0; i <= 3; ++i) {
1407                         data->fan[i] =
1408                             lm85_read_value(client, LM85_REG_FAN(i));
1409                 }
1410
1411                 for (i = 0; i <= 2; ++i) {
1412                         data->temp[i] =
1413                             lm85_read_value(client, LM85_REG_TEMP(i));
1414                 }
1415
1416                 for (i = 0; i <= 2; ++i) {
1417                         data->pwm[i] =
1418                             lm85_read_value(client, LM85_REG_PWM(i));
1419                 }
1420
1421                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1422
1423                 if ( data->type == adt7463 ) {
1424                         if( data->therm_total < ULONG_MAX - 256 ) {
1425                             data->therm_total +=
1426                                 lm85_read_value(client, ADT7463_REG_THERM );
1427                         }
1428                 } else if ( data->type == emc6d100 ) {
1429                         /* Three more voltage sensors */
1430                         for (i = 5; i <= 7; ++i) {
1431                                 data->in[i] =
1432                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1433                         }
1434                         /* More alarm bits */
1435                         data->alarms |=
1436                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1437                 } else if (data->type == emc6d102 ) {
1438                         /* Have to read LSB bits after the MSB ones because
1439                            the reading of the MSB bits has frozen the
1440                            LSBs (backward from the ADM1027).
1441                          */
1442                         int ext1 = lm85_read_value(client,
1443                                                    EMC6D102_REG_EXTEND_ADC1);
1444                         int ext2 = lm85_read_value(client,
1445                                                    EMC6D102_REG_EXTEND_ADC2);
1446                         int ext3 = lm85_read_value(client,
1447                                                    EMC6D102_REG_EXTEND_ADC3);
1448                         int ext4 = lm85_read_value(client,
1449                                                    EMC6D102_REG_EXTEND_ADC4);
1450                         data->in_ext[0] = ext3 & 0x0f;
1451                         data->in_ext[1] = ext4 & 0x0f;
1452                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1453                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1454                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1455
1456                         data->temp_ext[0] = ext1 & 0x0f;
1457                         data->temp_ext[1] = ext2 & 0x0f;
1458                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1459                 }
1460
1461                 data->last_reading = jiffies ;
1462         };  /* last_reading */
1463
1464         if ( !data->valid ||
1465              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1466                 /* Things that don't change often */
1467                 dev_dbg(&client->dev, "Reading config values\n");
1468
1469                 for (i = 0; i <= 4; ++i) {
1470                         data->in_min[i] =
1471                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1472                         data->in_max[i] =
1473                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1474                 }
1475
1476                 if ( data->type == emc6d100 ) {
1477                         for (i = 5; i <= 7; ++i) {
1478                                 data->in_min[i] =
1479                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1480                                 data->in_max[i] =
1481                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1482                         }
1483                 }
1484
1485                 for (i = 0; i <= 3; ++i) {
1486                         data->fan_min[i] =
1487                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1488                 }
1489
1490                 for (i = 0; i <= 2; ++i) {
1491                         data->temp_min[i] =
1492                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1493                         data->temp_max[i] =
1494                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1495                 }
1496
1497                 data->vid = lm85_read_value(client, LM85_REG_VID);
1498
1499                 for (i = 0; i <= 2; ++i) {
1500                         int val ;
1501                         data->autofan[i].config =
1502                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1503                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1504                         data->autofan[i].freq = val & 0x07 ;
1505                         data->zone[i].range = (val >> 4) & 0x0f ;
1506                         data->autofan[i].min_pwm =
1507                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1508                         data->zone[i].limit =
1509                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1510                         data->zone[i].critical =
1511                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1512                 }
1513
1514                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1515                 data->smooth[0] = i & 0x0f ;
1516                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1517                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1518                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1519                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1520                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1521                 data->smooth[1] = (i>>4) & 0x0f ;
1522                 data->smooth[2] = i & 0x0f ;
1523
1524                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1525                 data->zone[0].hyst = (i>>4) & 0x0f ;
1526                 data->zone[1].hyst = i & 0x0f ;
1527
1528                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1529                 data->zone[2].hyst = (i>>4) & 0x0f ;
1530
1531                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1532                         data->tach_mode = lm85_read_value(client,
1533                                 LM85_REG_TACH_MODE );
1534                         data->spinup_ctl = lm85_read_value(client,
1535                                 LM85_REG_SPINUP_CTL );
1536                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1537                         if ( data->type == adt7463 ) {
1538                                 for (i = 0; i <= 2; ++i) {
1539                                     data->oppoint[i] = lm85_read_value(client,
1540                                         ADT7463_REG_OPPOINT(i) );
1541                                 }
1542                                 data->tmin_ctl = lm85_read_value(client,
1543                                         ADT7463_REG_TMIN_CTL1 );
1544                                 data->therm_limit = lm85_read_value(client,
1545                                         ADT7463_REG_THERM_LIMIT );
1546                         }
1547                         for (i = 0; i <= 2; ++i) {
1548                             data->temp_offset[i] = lm85_read_value(client,
1549                                 ADM1027_REG_TEMP_OFFSET(i) );
1550                         }
1551                         data->tach_mode = lm85_read_value(client,
1552                                 ADM1027_REG_CONFIG3 );
1553                         data->fan_ppr = lm85_read_value(client,
1554                                 ADM1027_REG_FAN_PPR );
1555                 }
1556         
1557                 data->last_config = jiffies;
1558         };  /* last_config */
1559
1560         data->valid = 1;
1561
1562         up(&data->update_lock);
1563
1564         return data;
1565 }
1566
1567
1568 static int __init sm_lm85_init(void)
1569 {
1570         return i2c_add_driver(&lm85_driver);
1571 }
1572
1573 static void  __exit sm_lm85_exit(void)
1574 {
1575         i2c_del_driver(&lm85_driver);
1576 }
1577
1578 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1579  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1580  *     post 2.7.0 CVS changes.
1581  */
1582 MODULE_LICENSE("GPL");
1583 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1584 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1585
1586 module_init(sm_lm85_init);
1587 module_exit(sm_lm85_exit);