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         enum chips type;
 336
 337         struct mutex update_lock;
 338         int valid;              /* !=0 if following fields are valid */
 339         unsigned long last_reading;     /* In jiffies */
 340         unsigned long last_config;      /* In jiffies */
 341
 342         u8 in[8];               /* Register value */
 343         u8 in_max[8];           /* Register value */
 344         u8 in_min[8];           /* Register value */
 345         s8 temp[3];             /* Register value */
 346         s8 temp_min[3];         /* Register value */
 347         s8 temp_max[3];         /* Register value */
 348         s8 temp_offset[3];      /* Register value */
 349         u16 fan[4];             /* Register value */
 350         u16 fan_min[4];         /* Register value */
 351         u8 pwm[3];              /* Register value */
 352         u8 spinup_ctl;          /* Register encoding, combined */
 353         u8 tach_mode;           /* Register encoding, combined */
 354         u8 temp_ext[3];         /* Decoded values */
 355         u8 in_ext[8];           /* Decoded values */
 356         u8 adc_scale;           /* ADC Extended bits scaling factor */
 357         u8 fan_ppr;             /* Register value */
 358         u8 smooth[3];           /* Register encoding */
 359         u8 vid;                 /* Register value */
 360         u8 vrm;                 /* VRM version */
 361         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
 362         u8 oppoint[3];          /* Register value */
 363         u16 tmin_ctl;           /* Register value */
 364         unsigned long therm_total; /* Cummulative therm count */
 365         u8 therm_limit;         /* Register value */
 366         u32 alarms;             /* Register encoding, combined */
 367         struct lm85_autofan autofan[3];
 368         struct lm85_zone zone[3];
 369 };
 370
 371 static int lm85_attach_adapter(struct i2c_adapter *adapter);
 372 static int lm85_detect(struct i2c_adapter *adapter, int address,
 373                         int kind);
 374 static int lm85_detach_client(struct i2c_client *client);
 375
 376 static int lm85_read_value(struct i2c_client *client, u8 reg);
 377 static int lm85_write_value(struct i2c_client *client, u8 reg, int value);
 378 static struct lm85_data *lm85_update_device(struct device *dev);
 379 static void lm85_init_client(struct i2c_client *client);
 380
 381
 382 static struct i2c_driver lm85_driver = {
 383         .driver = {
 384                 .name   = "lm85",
 385         },
 386         .id             = I2C_DRIVERID_LM85,
 387         .attach_adapter = lm85_attach_adapter,
 388         .detach_client  = lm85_detach_client,
 389 };
 390
 391
 392 /* 4 Fans */
 393 static ssize_t show_fan(struct device *dev, char *buf, int nr)
 394 {
 395         struct lm85_data *data = lm85_update_device(dev);
 396         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
 397 }
 398 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
 399 {
 400         struct lm85_data *data = lm85_update_device(dev);
 401         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
 402 }
 403 static ssize_t set_fan_min(struct device *dev, const char *buf,
 404                 size_t count, int nr)
 405 {
 406         struct i2c_client *client = to_i2c_client(dev);
 407         struct lm85_data *data = i2c_get_clientdata(client);
 408         long val = simple_strtol(buf, NULL, 10);
 409
 410         mutex_lock(&data->update_lock);
 411         data->fan_min[nr] = FAN_TO_REG(val);
 412         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
 413         mutex_unlock(&data->update_lock);
 414         return count;
 415 }
 416
 417 #define show_fan_offset(offset)                                         \
 418 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 419 {                                                                       \
 420         return show_fan(dev, buf, offset - 1);                          \
 421 }                                                                       \
 422 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
 423 {                                                                       \
 424         return show_fan_min(dev, buf, offset - 1);                      \
 425 }                                                                       \
 426 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
 427         const char *buf, size_t count)                                  \
 428 {                                                                       \
 429         return set_fan_min(dev, buf, count, offset - 1);                \
 430 }                                                                       \
 431 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
 432                 NULL);                                                  \
 433 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
 434                 show_fan_##offset##_min, set_fan_##offset##_min);
 435
 436 show_fan_offset(1);
 437 show_fan_offset(2);
 438 show_fan_offset(3);
 439 show_fan_offset(4);
 440
 441 /* vid, vrm, alarms */
 442
 443 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 444 {
 445         struct lm85_data *data = lm85_update_device(dev);
 446         int vid;
 447
 448         if (data->type == adt7463 && (data->vid & 0x80)) {
 449                 /* 6-pin VID (VRM 10) */
 450                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
 451         } else {
 452                 /* 5-pin VID (VRM 9) */
 453                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
 454         }
 455
 456         return sprintf(buf, "%d\n", vid);
 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         mutex_lock(&data->update_lock);
 503         data->pwm[nr] = PWM_TO_REG(val);
 504         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 505         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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         mutex_lock(&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         mutex_unlock(&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 static int lm85_attach_adapter(struct i2c_adapter *adapter)
1021 {
1022         if (!(adapter->class & I2C_CLASS_HWMON))
1023                 return 0;
1024         return i2c_probe(adapter, &addr_data, lm85_detect);
1025 }
1026
1027 static struct attribute *lm85_attributes[] = {
1028         &dev_attr_fan1_input.attr,
1029         &dev_attr_fan2_input.attr,
1030         &dev_attr_fan3_input.attr,
1031         &dev_attr_fan4_input.attr,
1032         &dev_attr_fan1_min.attr,
1033         &dev_attr_fan2_min.attr,
1034         &dev_attr_fan3_min.attr,
1035         &dev_attr_fan4_min.attr,
1036         &dev_attr_pwm1.attr,
1037         &dev_attr_pwm2.attr,
1038         &dev_attr_pwm3.attr,
1039         &dev_attr_pwm1_enable.attr,
1040         &dev_attr_pwm2_enable.attr,
1041         &dev_attr_pwm3_enable.attr,
1042         &dev_attr_in0_input.attr,
1043         &dev_attr_in1_input.attr,
1044         &dev_attr_in2_input.attr,
1045         &dev_attr_in3_input.attr,
1046         &dev_attr_in0_min.attr,
1047         &dev_attr_in1_min.attr,
1048         &dev_attr_in2_min.attr,
1049         &dev_attr_in3_min.attr,
1050         &dev_attr_in0_max.attr,
1051         &dev_attr_in1_max.attr,
1052         &dev_attr_in2_max.attr,
1053         &dev_attr_in3_max.attr,
1054         &dev_attr_temp1_input.attr,
1055         &dev_attr_temp2_input.attr,
1056         &dev_attr_temp3_input.attr,
1057         &dev_attr_temp1_min.attr,
1058         &dev_attr_temp2_min.attr,
1059         &dev_attr_temp3_min.attr,
1060         &dev_attr_temp1_max.attr,
1061         &dev_attr_temp2_max.attr,
1062         &dev_attr_temp3_max.attr,
1063         &dev_attr_vrm.attr,
1064         &dev_attr_cpu0_vid.attr,
1065         &dev_attr_alarms.attr,
1066         &dev_attr_pwm1_auto_channels.attr,
1067         &dev_attr_pwm2_auto_channels.attr,
1068         &dev_attr_pwm3_auto_channels.attr,
1069         &dev_attr_pwm1_auto_pwm_min.attr,
1070         &dev_attr_pwm2_auto_pwm_min.attr,
1071         &dev_attr_pwm3_auto_pwm_min.attr,
1072         &dev_attr_pwm1_auto_pwm_minctl.attr,
1073         &dev_attr_pwm2_auto_pwm_minctl.attr,
1074         &dev_attr_pwm3_auto_pwm_minctl.attr,
1075         &dev_attr_pwm1_auto_pwm_freq.attr,
1076         &dev_attr_pwm2_auto_pwm_freq.attr,
1077         &dev_attr_pwm3_auto_pwm_freq.attr,
1078         &dev_attr_temp1_auto_temp_off.attr,
1079         &dev_attr_temp2_auto_temp_off.attr,
1080         &dev_attr_temp3_auto_temp_off.attr,
1081         &dev_attr_temp1_auto_temp_min.attr,
1082         &dev_attr_temp2_auto_temp_min.attr,
1083         &dev_attr_temp3_auto_temp_min.attr,
1084         &dev_attr_temp1_auto_temp_max.attr,
1085         &dev_attr_temp2_auto_temp_max.attr,
1086         &dev_attr_temp3_auto_temp_max.attr,
1087         &dev_attr_temp1_auto_temp_crit.attr,
1088         &dev_attr_temp2_auto_temp_crit.attr,
1089         &dev_attr_temp3_auto_temp_crit.attr,
1090
1091         NULL
1092 };
1093
1094 static const struct attribute_group lm85_group = {
1095         .attrs = lm85_attributes,
1096 };
1097
1098 static struct attribute *lm85_attributes_opt[] = {
1099         &dev_attr_in4_input.attr,
1100         &dev_attr_in4_min.attr,
1101         &dev_attr_in4_max.attr,
1102
1103         NULL
1104 };
1105
1106 static const struct attribute_group lm85_group_opt = {
1107         .attrs = lm85_attributes_opt,
1108 };
1109
1110 static int lm85_detect(struct i2c_adapter *adapter, int address,
1111                 int kind)
1112 {
1113         int company, verstep ;
1114         struct i2c_client *new_client = NULL;
1115         struct lm85_data *data;
1116         int err = 0;
1117         const char *type_name = "";
1118
1119         if (!i2c_check_functionality(adapter,
1120                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1121                 /* We need to be able to do byte I/O */
1122                 goto ERROR0 ;
1123         };
1124
1125         /* OK. For now, we presume we have a valid client. We now create the
1126            client structure, even though we cannot fill it completely yet.
1127            But it allows us to access lm85_{read,write}_value. */
1128
1129         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1130                 err = -ENOMEM;
1131                 goto ERROR0;
1132         }
1133
1134         new_client = &data->client;
1135         i2c_set_clientdata(new_client, data);
1136         new_client->addr = address;
1137         new_client->adapter = adapter;
1138         new_client->driver = &lm85_driver;
1139         new_client->flags = 0;
1140
1141         /* Now, we do the remaining detection. */
1142
1143         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1144         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1145
1146         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1147                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1148                 i2c_adapter_id(new_client->adapter), new_client->addr,
1149                 company, verstep);
1150
1151         /* If auto-detecting, Determine the chip type. */
1152         if (kind <= 0) {
1153                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1154                         i2c_adapter_id(adapter), address );
1155                 if( company == LM85_COMPANY_NATIONAL
1156                     && verstep == LM85_VERSTEP_LM85C ) {
1157                         kind = lm85c ;
1158                 } else if( company == LM85_COMPANY_NATIONAL
1159                     && verstep == LM85_VERSTEP_LM85B ) {
1160                         kind = lm85b ;
1161                 } else if( company == LM85_COMPANY_NATIONAL
1162                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1163                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1164                                 " Defaulting to LM85.\n", verstep);
1165                         kind = any_chip ;
1166                 } else if( company == LM85_COMPANY_ANALOG_DEV
1167                     && verstep == LM85_VERSTEP_ADM1027 ) {
1168                         kind = adm1027 ;
1169                 } else if( company == LM85_COMPANY_ANALOG_DEV
1170                     && (verstep == LM85_VERSTEP_ADT7463
1171                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1172                         kind = adt7463 ;
1173                 } else if( company == LM85_COMPANY_ANALOG_DEV
1174                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1175                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1176                                 " Defaulting to Generic LM85.\n", verstep );
1177                         kind = any_chip ;
1178                 } else if( company == LM85_COMPANY_SMSC
1179                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1180                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1181                         /* Unfortunately, we can't tell a '100 from a '101
1182                          * from the registers.  Since a '101 is a '100
1183                          * in a package with fewer pins and therefore no
1184                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1185                          * inputs read 0, then it's a '101.
1186                          */
1187                         kind = emc6d100 ;
1188                 } else if( company == LM85_COMPANY_SMSC
1189                     && verstep == LM85_VERSTEP_EMC6D102) {
1190                         kind = emc6d102 ;
1191                 } else if( company == LM85_COMPANY_SMSC
1192                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1193                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1194                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1195                             " Defaulting to Generic LM85.\n", verstep );
1196                         kind = any_chip ;
1197                 } else if( kind == any_chip
1198                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1199                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1200                         /* Leave kind as "any_chip" */
1201                 } else {
1202                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1203                         /* Not an LM85 ... */
1204                         if( kind == any_chip ) {  /* User used force=x,y */
1205                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1206                                         " found at %d,0x%02x. Try force_lm85c.\n",
1207                                         i2c_adapter_id(adapter), address );
1208                         }
1209                         err = 0 ;
1210                         goto ERROR1;
1211                 }
1212         }
1213
1214         /* Fill in the chip specific driver values */
1215         if ( kind == any_chip ) {
1216                 type_name = "lm85";
1217         } else if ( kind == lm85b ) {
1218                 type_name = "lm85b";
1219         } else if ( kind == lm85c ) {
1220                 type_name = "lm85c";
1221         } else if ( kind == adm1027 ) {
1222                 type_name = "adm1027";
1223         } else if ( kind == adt7463 ) {
1224                 type_name = "adt7463";
1225         } else if ( kind == emc6d100){
1226                 type_name = "emc6d100";
1227         } else if ( kind == emc6d102 ) {
1228                 type_name = "emc6d102";
1229         }
1230         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1231
1232         /* Fill in the remaining client fields */
1233         data->type = kind;
1234         data->valid = 0;
1235         mutex_init(&data->update_lock);
1236
1237         /* Tell the I2C layer a new client has arrived */
1238         if ((err = i2c_attach_client(new_client)))
1239                 goto ERROR1;
1240
1241         /* Set the VRM version */
1242         data->vrm = vid_which_vrm();
1243
1244         /* Initialize the LM85 chip */
1245         lm85_init_client(new_client);
1246
1247         /* Register sysfs hooks */
1248         if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
1249                 goto ERROR2;
1250
1251         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1252            as a sixth digital VID input rather than an analog input. */
1253         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1254         if (!(kind == adt7463 && (data->vid & 0x80)))
1255                 if ((err = device_create_file(&new_client->dev,
1256                                         &dev_attr_in4_input))
1257                  || (err = device_create_file(&new_client->dev,
1258                                         &dev_attr_in4_min))
1259                  || (err = device_create_file(&new_client->dev,
1260                                         &dev_attr_in4_max)))
1261                         goto ERROR3;
1262
1263         data->class_dev = hwmon_device_register(&new_client->dev);
1264         if (IS_ERR(data->class_dev)) {
1265                 err = PTR_ERR(data->class_dev);
1266                 goto ERROR3;
1267         }
1268
1269         return 0;
1270
1271         /* Error out and cleanup code */
1272     ERROR3:
1273         sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
1274         sysfs_remove_group(&new_client->dev.kobj, &lm85_group_opt);
1275     ERROR2:
1276         i2c_detach_client(new_client);
1277     ERROR1:
1278         kfree(data);
1279     ERROR0:
1280         return err;
1281 }
1282
1283 static int lm85_detach_client(struct i2c_client *client)
1284 {
1285         struct lm85_data *data = i2c_get_clientdata(client);
1286         hwmon_device_unregister(data->class_dev);
1287         sysfs_remove_group(&client->dev.kobj, &lm85_group);
1288         sysfs_remove_group(&client->dev.kobj, &lm85_group_opt);
1289         i2c_detach_client(client);
1290         kfree(data);
1291         return 0;
1292 }
1293
1294
1295 static int lm85_read_value(struct i2c_client *client, u8 reg)
1296 {
1297         int res;
1298
1299         /* What size location is it? */
1300         switch( reg ) {
1301         case LM85_REG_FAN(0) :  /* Read WORD data */
1302         case LM85_REG_FAN(1) :
1303         case LM85_REG_FAN(2) :
1304         case LM85_REG_FAN(3) :
1305         case LM85_REG_FAN_MIN(0) :
1306         case LM85_REG_FAN_MIN(1) :
1307         case LM85_REG_FAN_MIN(2) :
1308         case LM85_REG_FAN_MIN(3) :
1309         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1310                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1311                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1312                 break ;
1313         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1314                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1315                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1316                 break ;
1317         default:        /* Read BYTE data */
1318                 res = i2c_smbus_read_byte_data(client, reg);
1319                 break ;
1320         }
1321
1322         return res ;
1323 }
1324
1325 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1326 {
1327         int res ;
1328
1329         switch( reg ) {
1330         case LM85_REG_FAN(0) :  /* Write WORD data */
1331         case LM85_REG_FAN(1) :
1332         case LM85_REG_FAN(2) :
1333         case LM85_REG_FAN(3) :
1334         case LM85_REG_FAN_MIN(0) :
1335         case LM85_REG_FAN_MIN(1) :
1336         case LM85_REG_FAN_MIN(2) :
1337         case LM85_REG_FAN_MIN(3) :
1338         /* NOTE: ALARM is read only, so not included here */
1339                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1340                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1341                 break ;
1342         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1343                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1344                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1345                 break ;
1346         default:        /* Write BYTE data */
1347                 res = i2c_smbus_write_byte_data(client, reg, value);
1348                 break ;
1349         }
1350
1351         return res ;
1352 }
1353
1354 static void lm85_init_client(struct i2c_client *client)
1355 {
1356         int value;
1357         struct lm85_data *data = i2c_get_clientdata(client);
1358
1359         dev_dbg(&client->dev, "Initializing device\n");
1360
1361         /* Warn if part was not "READY" */
1362         value = lm85_read_value(client, LM85_REG_CONFIG);
1363         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1364         if( value & 0x02 ) {
1365                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1366                             i2c_adapter_id(client->adapter), client->addr );
1367         };
1368         if( ! (value & 0x04) ) {
1369                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1370                             i2c_adapter_id(client->adapter), client->addr );
1371         };
1372         if( value & 0x10
1373             && ( data->type == adm1027
1374                 || data->type == adt7463 ) ) {
1375                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1376                         "Please report this to the lm85 maintainer.\n",
1377                             i2c_adapter_id(client->adapter), client->addr );
1378         };
1379
1380         /* WE INTENTIONALLY make no changes to the limits,
1381          *   offsets, pwms, fans and zones.  If they were
1382          *   configured, we don't want to mess with them.
1383          *   If they weren't, the default is 100% PWM, no
1384          *   control and will suffice until 'sensors -s'
1385          *   can be run by the user.
1386          */
1387
1388         /* Start monitoring */
1389         value = lm85_read_value(client, LM85_REG_CONFIG);
1390         /* Try to clear LOCK, Set START, save everything else */
1391         value = (value & ~ 0x02) | 0x01 ;
1392         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1393         lm85_write_value(client, LM85_REG_CONFIG, value);
1394 }
1395
1396 static struct lm85_data *lm85_update_device(struct device *dev)
1397 {
1398         struct i2c_client *client = to_i2c_client(dev);
1399         struct lm85_data *data = i2c_get_clientdata(client);
1400         int i;
1401
1402         mutex_lock(&data->update_lock);
1403
1404         if ( !data->valid ||
1405              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1406                 /* Things that change quickly */
1407                 dev_dbg(&client->dev, "Reading sensor values\n");
1408
1409                 /* Have to read extended bits first to "freeze" the
1410                  * more significant bits that are read later.
1411                  */
1412                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1413                         int ext1 = lm85_read_value(client,
1414                                                    ADM1027_REG_EXTEND_ADC1);
1415                         int ext2 =  lm85_read_value(client,
1416                                                     ADM1027_REG_EXTEND_ADC2);
1417                         int val = (ext1 << 8) + ext2;
1418
1419                         for(i = 0; i <= 4; i++)
1420                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1421
1422                         for(i = 0; i <= 2; i++)
1423                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1424                 }
1425
1426                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1427                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1428                    other chips ext is always 0 and the value of scale is
1429                    irrelevant. So it is left in 4*/
1430                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1431
1432                 data->vid = lm85_read_value(client, LM85_REG_VID);
1433
1434                 for (i = 0; i <= 3; ++i) {
1435                         data->in[i] =
1436                             lm85_read_value(client, LM85_REG_IN(i));
1437                 }
1438
1439                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1440                         data->in[4] = lm85_read_value(client,
1441                                       LM85_REG_IN(4));
1442                 }
1443
1444                 for (i = 0; i <= 3; ++i) {
1445                         data->fan[i] =
1446                             lm85_read_value(client, LM85_REG_FAN(i));
1447                 }
1448
1449                 for (i = 0; i <= 2; ++i) {
1450                         data->temp[i] =
1451                             lm85_read_value(client, LM85_REG_TEMP(i));
1452                 }
1453
1454                 for (i = 0; i <= 2; ++i) {
1455                         data->pwm[i] =
1456                             lm85_read_value(client, LM85_REG_PWM(i));
1457                 }
1458
1459                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1460
1461                 if ( data->type == adt7463 ) {
1462                         if( data->therm_total < ULONG_MAX - 256 ) {
1463                             data->therm_total +=
1464                                 lm85_read_value(client, ADT7463_REG_THERM );
1465                         }
1466                 } else if ( data->type == emc6d100 ) {
1467                         /* Three more voltage sensors */
1468                         for (i = 5; i <= 7; ++i) {
1469                                 data->in[i] =
1470                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1471                         }
1472                         /* More alarm bits */
1473                         data->alarms |=
1474                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1475                 } else if (data->type == emc6d102 ) {
1476                         /* Have to read LSB bits after the MSB ones because
1477                            the reading of the MSB bits has frozen the
1478                            LSBs (backward from the ADM1027).
1479                          */
1480                         int ext1 = lm85_read_value(client,
1481                                                    EMC6D102_REG_EXTEND_ADC1);
1482                         int ext2 = lm85_read_value(client,
1483                                                    EMC6D102_REG_EXTEND_ADC2);
1484                         int ext3 = lm85_read_value(client,
1485                                                    EMC6D102_REG_EXTEND_ADC3);
1486                         int ext4 = lm85_read_value(client,
1487                                                    EMC6D102_REG_EXTEND_ADC4);
1488                         data->in_ext[0] = ext3 & 0x0f;
1489                         data->in_ext[1] = ext4 & 0x0f;
1490                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1491                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1492                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1493
1494                         data->temp_ext[0] = ext1 & 0x0f;
1495                         data->temp_ext[1] = ext2 & 0x0f;
1496                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1497                 }
1498
1499                 data->last_reading = jiffies ;
1500         };  /* last_reading */
1501
1502         if ( !data->valid ||
1503              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1504                 /* Things that don't change often */
1505                 dev_dbg(&client->dev, "Reading config values\n");
1506
1507                 for (i = 0; i <= 3; ++i) {
1508                         data->in_min[i] =
1509                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1510                         data->in_max[i] =
1511                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1512                 }
1513
1514                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1515                         data->in_min[4] = lm85_read_value(client,
1516                                           LM85_REG_IN_MIN(4));
1517                         data->in_max[4] = lm85_read_value(client,
1518                                           LM85_REG_IN_MAX(4));
1519                 }
1520
1521                 if ( data->type == emc6d100 ) {
1522                         for (i = 5; i <= 7; ++i) {
1523                                 data->in_min[i] =
1524                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1525                                 data->in_max[i] =
1526                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1527                         }
1528                 }
1529
1530                 for (i = 0; i <= 3; ++i) {
1531                         data->fan_min[i] =
1532                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1533                 }
1534
1535                 for (i = 0; i <= 2; ++i) {
1536                         data->temp_min[i] =
1537                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1538                         data->temp_max[i] =
1539                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1540                 }
1541
1542                 for (i = 0; i <= 2; ++i) {
1543                         int val ;
1544                         data->autofan[i].config =
1545                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1546                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1547                         data->autofan[i].freq = val & 0x07 ;
1548                         data->zone[i].range = (val >> 4) & 0x0f ;
1549                         data->autofan[i].min_pwm =
1550                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1551                         data->zone[i].limit =
1552                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1553                         data->zone[i].critical =
1554                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1555                 }
1556
1557                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1558                 data->smooth[0] = i & 0x0f ;
1559                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1560                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1561                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1562                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1563                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1564                 data->smooth[1] = (i>>4) & 0x0f ;
1565                 data->smooth[2] = i & 0x0f ;
1566
1567                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1568                 data->zone[0].hyst = (i>>4) & 0x0f ;
1569                 data->zone[1].hyst = i & 0x0f ;
1570
1571                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1572                 data->zone[2].hyst = (i>>4) & 0x0f ;
1573
1574                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1575                         data->tach_mode = lm85_read_value(client,
1576                                 LM85_REG_TACH_MODE );
1577                         data->spinup_ctl = lm85_read_value(client,
1578                                 LM85_REG_SPINUP_CTL );
1579                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1580                         if ( data->type == adt7463 ) {
1581                                 for (i = 0; i <= 2; ++i) {
1582                                     data->oppoint[i] = lm85_read_value(client,
1583                                         ADT7463_REG_OPPOINT(i) );
1584                                 }
1585                                 data->tmin_ctl = lm85_read_value(client,
1586                                         ADT7463_REG_TMIN_CTL1 );
1587                                 data->therm_limit = lm85_read_value(client,
1588                                         ADT7463_REG_THERM_LIMIT );
1589                         }
1590                         for (i = 0; i <= 2; ++i) {
1591                             data->temp_offset[i] = lm85_read_value(client,
1592                                 ADM1027_REG_TEMP_OFFSET(i) );
1593                         }
1594                         data->tach_mode = lm85_read_value(client,
1595                                 ADM1027_REG_CONFIG3 );
1596                         data->fan_ppr = lm85_read_value(client,
1597                                 ADM1027_REG_FAN_PPR );
1598                 }
1599
1600                 data->last_config = jiffies;
1601         };  /* last_config */
1602
1603         data->valid = 1;
1604
1605         mutex_unlock(&data->update_lock);
1606
1607         return data;
1608 }
1609
1610
1611 static int __init sm_lm85_init(void)
1612 {
1613         return i2c_add_driver(&lm85_driver);
1614 }
1615
1616 static void  __exit sm_lm85_exit(void)
1617 {
1618         i2c_del_driver(&lm85_driver);
1619 }
1620
1621 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1622  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1623  *     post 2.7.0 CVS changes.
1624  */
1625 MODULE_LICENSE("GPL");
1626 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1627 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1628
1629 module_init(sm_lm85_init);
1630 module_exit(sm_lm85_exit);