drivers/hwmon/lm85.c

   1 /*
   2     lm85.c - Part of lm_sensors, Linux kernel modules for hardware
   3              monitoring
   4     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
   5     Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
   6     Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
   7     Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
   8
   9     Chip details at           <http://www.national.com/ds/LM/LM85.pdf>
  10
  11     This program is free software; you can redistribute it and/or modify
  12     it under the terms of the GNU General Public License as published by
  13     the Free Software Foundation; either version 2 of the License, or
  14     (at your option) any later version.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with this program; if not, write to the Free Software
  23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/jiffies.h>
  30 #include <linux/i2c.h>
  31 #include <linux/hwmon.h>
  32 #include <linux/hwmon-vid.h>
  33 #include <linux/hwmon-sysfs.h>
  34 #include <linux/err.h>
  35 #include <linux/mutex.h>
  36
  37 /* Addresses to scan */
  38 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
  39
  40 /* Insmod parameters */
  41 I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
  42
  43 /* The LM85 registers */
  44
  45 #define LM85_REG_IN(nr)                 (0x20 + (nr))
  46 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
  47 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
  48
  49 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
  50 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
  51 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
  52
  53 /* Fan speeds are LSB, MSB (2 bytes) */
  54 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
  55 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
  56
  57 #define LM85_REG_PWM(nr)                (0x30 + (nr))
  58
  59 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
  60
  61 #define ADT7463_REG_TMIN_CTL1           0x36
  62 #define ADT7463_REG_TMIN_CTL2           0x37
  63
  64 #define LM85_REG_DEVICE                 0x3d
  65 #define LM85_REG_COMPANY                0x3e
  66 #define LM85_REG_VERSTEP                0x3f
  67 /* These are the recognized values for the above regs */
  68 #define LM85_DEVICE_ADX                 0x27
  69 #define LM85_COMPANY_NATIONAL           0x01
  70 #define LM85_COMPANY_ANALOG_DEV         0x41
  71 #define LM85_COMPANY_SMSC               0x5c
  72 #define LM85_VERSTEP_VMASK              0xf0
  73 #define LM85_VERSTEP_GENERIC            0x60
  74 #define LM85_VERSTEP_LM85C              0x60
  75 #define LM85_VERSTEP_LM85B              0x62
  76 #define LM85_VERSTEP_ADM1027            0x60
  77 #define LM85_VERSTEP_ADT7463            0x62
  78 #define LM85_VERSTEP_ADT7463C           0x6A
  79 #define LM85_VERSTEP_EMC6D100_A0        0x60
  80 #define LM85_VERSTEP_EMC6D100_A1        0x61
  81 #define LM85_VERSTEP_EMC6D102           0x65
  82
  83 #define LM85_REG_CONFIG                 0x40
  84
  85 #define LM85_REG_ALARM1                 0x41
  86 #define LM85_REG_ALARM2                 0x42
  87
  88 #define LM85_REG_VID                    0x43
  89
  90 /* Automated FAN control */
  91 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
  92 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
  93 #define LM85_REG_AFAN_SPIKE1            0x62
  94 #define LM85_REG_AFAN_SPIKE2            0x63
  95 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
  96 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
  97 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
  98 #define LM85_REG_AFAN_HYST1             0x6d
  99 #define LM85_REG_AFAN_HYST2             0x6e
 100
 101 #define LM85_REG_TACH_MODE              0x74
 102 #define LM85_REG_SPINUP_CTL             0x75
 103
 104 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
 105 #define ADM1027_REG_CONFIG2             0x73
 106 #define ADM1027_REG_INTMASK1            0x74
 107 #define ADM1027_REG_INTMASK2            0x75
 108 #define ADM1027_REG_EXTEND_ADC1         0x76
 109 #define ADM1027_REG_EXTEND_ADC2         0x77
 110 #define ADM1027_REG_CONFIG3             0x78
 111 #define ADM1027_REG_FAN_PPR             0x7b
 112
 113 #define ADT7463_REG_THERM               0x79
 114 #define ADT7463_REG_THERM_LIMIT         0x7A
 115
 116 #define EMC6D100_REG_ALARM3             0x7d
 117 /* IN5, IN6 and IN7 */
 118 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
 119 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
 120 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
 121 #define EMC6D102_REG_EXTEND_ADC1        0x85
 122 #define EMC6D102_REG_EXTEND_ADC2        0x86
 123 #define EMC6D102_REG_EXTEND_ADC3        0x87
 124 #define EMC6D102_REG_EXTEND_ADC4        0x88
 125
 126
 127 /* Conversions. Rounding and limit checking is only done on the TO_REG
 128    variants. Note that you should be a bit careful with which arguments
 129    these macros are called: arguments may be evaluated more than once.
 130  */
 131
 132 /* IN are scaled acording to built-in resistors */
 133 static int lm85_scaling[] = {  /* .001 Volts */
 134                 2500, 2250, 3300, 5000, 12000,
 135                 3300, 1500, 1800 /*EMC6D100*/
 136         };
 137 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
 138
 139 #define INS_TO_REG(n,val)       \
 140                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
 141
 142 #define INSEXT_FROM_REG(n,val,ext)      \
 143                 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
 144
 145 #define INS_FROM_REG(n,val)     SCALE((val), 192, lm85_scaling[n])
 146
 147 /* FAN speed is measured using 90kHz clock */
 148 #define FAN_TO_REG(val)         (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
 149 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
 150
 151 /* Temperature is reported in .001 degC increments */
 152 #define TEMP_TO_REG(val)        \
 153                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
 154 #define TEMPEXT_FROM_REG(val,ext)       \
 155                 SCALE(((val) << 4) + (ext), 16, 1000)
 156 #define TEMP_FROM_REG(val)      ((val) * 1000)
 157
 158 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
 159 #define PWM_FROM_REG(val)               (val)
 160
 161
 162 /* ZONEs have the following parameters:
 163  *    Limit (low) temp,           1. degC
 164  *    Hysteresis (below limit),   1. degC (0-15)
 165  *    Range of speed control,     .1 degC (2-80)
 166  *    Critical (high) temp,       1. degC
 167  *
 168  * FAN PWMs have the following parameters:
 169  *    Reference Zone,                 1, 2, 3, etc.
 170  *    Spinup time,                    .05 sec
 171  *    PWM value at limit/low temp,    1 count
 172  *    PWM Frequency,                  1. Hz
 173  *    PWM is Min or OFF below limit,  flag
 174  *    Invert PWM output,              flag
 175  *
 176  * Some chips filter the temp, others the fan.
 177  *    Filter constant (or disabled)   .1 seconds
 178  */
 179
 180 /* These are the zone temperature range encodings in .001 degree C */
 181 static int lm85_range_map[] = {
 182                 2000,  2500,  3300,  4000,  5000,  6600,
 183                 8000, 10000, 13300, 16000, 20000, 26600,
 184                 32000, 40000, 53300, 80000
 185         };
 186 static int RANGE_TO_REG( int range )
 187 {
 188         int i;
 189
 190         if ( range < lm85_range_map[0] ) {
 191                 return 0 ;
 192         } else if ( range > lm85_range_map[15] ) {
 193                 return 15 ;
 194         } else {  /* find closest match */
 195                 for ( i = 14 ; i >= 0 ; --i ) {
 196                         if ( range > lm85_range_map[i] ) { /* range bracketed */
 197                                 if ((lm85_range_map[i+1] - range) <
 198                                         (range - lm85_range_map[i])) {
 199                                         i++;
 200                                         break;
 201                                 }
 202                                 break;
 203                         }
 204                 }
 205         }
 206         return( i & 0x0f );
 207 }
 208 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
 209
 210 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
 211  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
 212  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
 213  *       is ignored, or set to 0.
 214  */
 215 /* These are the PWM frequency encodings */
 216 static int lm85_freq_map[] = { /* .1 Hz */
 217                 100, 150, 230, 300, 380, 470, 620, 940
 218         };
 219 static int FREQ_TO_REG( int freq )
 220 {
 221         int i;
 222
 223         if( freq >= lm85_freq_map[7] ) { return 7 ; }
 224         for( i = 0 ; i < 7 ; ++i )
 225                 if( freq <= lm85_freq_map[i] )
 226                         break ;
 227         return( i & 0x07 );
 228 }
 229 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
 230
 231 /* Since we can't use strings, I'm abusing these numbers
 232  *   to stand in for the following meanings:
 233  *      1 -- PWM responds to Zone 1
 234  *      2 -- PWM responds to Zone 2
 235  *      3 -- PWM responds to Zone 3
 236  *     23 -- PWM responds to the higher temp of Zone 2 or 3
 237  *    123 -- PWM responds to highest of Zone 1, 2, or 3
 238  *      0 -- PWM is always at 0% (ie, off)
 239  *     -1 -- PWM is always at 100%
 240  *     -2 -- PWM responds to manual control
 241  */
 242
 243 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
 244 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
 245
 246 static int ZONE_TO_REG( int zone )
 247 {
 248         int i;
 249
 250         for( i = 0 ; i <= 7 ; ++i )
 251                 if( zone == lm85_zone_map[i] )
 252                         break ;
 253         if( i > 7 )   /* Not found. */
 254                 i = 3;  /* Always 100% */
 255         return( (i & 0x07)<<5 );
 256 }
 257
 258 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
 259 #define HYST_FROM_REG(val) ((val)*1000)
 260
 261 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
 262 #define OFFSET_FROM_REG(val) ((val)*25)
 263
 264 #define PPR_MASK(fan) (0x03<<(fan *2))
 265 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
 266 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
 267
 268 /* Chip sampling rates
 269  *
 270  * Some sensors are not updated more frequently than once per second
 271  *    so it doesn't make sense to read them more often than that.
 272  *    We cache the results and return the saved data if the driver
 273  *    is called again before a second has elapsed.
 274  *
 275  * Also, there is significant configuration data for this chip
 276  *    given the automatic PWM fan control that is possible.  There
 277  *    are about 47 bytes of config data to only 22 bytes of actual
 278  *    readings.  So, we keep the config data up to date in the cache
 279  *    when it is written and only sample it once every 1 *minute*
 280  */
 281 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
 282 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
 283
 284 /* LM85 can automatically adjust fan speeds based on temperature
 285  * This structure encapsulates an entire Zone config.  There are
 286  * three zones (one for each temperature input) on the lm85
 287  */
 288 struct lm85_zone {
 289         s8 limit;       /* Low temp limit */
 290         u8 hyst;        /* Low limit hysteresis. (0-15) */
 291         u8 range;       /* Temp range, encoded */
 292         s8 critical;    /* "All fans ON" temp limit */
 293         u8 off_desired; /* Actual "off" temperature specified.  Preserved
 294                          * to prevent "drift" as other autofan control
 295                          * values change.
 296                          */
 297         u8 max_desired; /* Actual "max" temperature specified.  Preserved
 298                          * to prevent "drift" as other autofan control
 299                          * values change.
 300                          */
 301 };
 302
 303 struct lm85_autofan {
 304         u8 config;      /* Register value */
 305         u8 freq;        /* PWM frequency, encoded */
 306         u8 min_pwm;     /* Minimum PWM value, encoded */
 307         u8 min_off;     /* Min PWM or OFF below "limit", flag */
 308 };
 309
 310 /* For each registered chip, we need to keep some data in memory.
 311    The structure is dynamically allocated. */
 312 struct lm85_data {
 313         struct i2c_client client;
 314         struct device *hwmon_dev;
 315         enum chips type;
 316
 317         struct mutex update_lock;
 318         int valid;              /* !=0 if following fields are valid */
 319         unsigned long last_reading;     /* In jiffies */
 320         unsigned long last_config;      /* In jiffies */
 321
 322         u8 in[8];               /* Register value */
 323         u8 in_max[8];           /* Register value */
 324         u8 in_min[8];           /* Register value */
 325         s8 temp[3];             /* Register value */
 326         s8 temp_min[3];         /* Register value */
 327         s8 temp_max[3];         /* Register value */
 328         s8 temp_offset[3];      /* Register value */
 329         u16 fan[4];             /* Register value */
 330         u16 fan_min[4];         /* Register value */
 331         u8 pwm[3];              /* Register value */
 332         u8 spinup_ctl;          /* Register encoding, combined */
 333         u8 tach_mode;           /* Register encoding, combined */
 334         u8 temp_ext[3];         /* Decoded values */
 335         u8 in_ext[8];           /* Decoded values */
 336         u8 fan_ppr;             /* Register value */
 337         u8 smooth[3];           /* Register encoding */
 338         u8 vid;                 /* Register value */
 339         u8 vrm;                 /* VRM version */
 340         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
 341         u8 oppoint[3];          /* Register value */
 342         u16 tmin_ctl;           /* Register value */
 343         unsigned long therm_total; /* Cummulative therm count */
 344         u8 therm_limit;         /* Register value */
 345         u32 alarms;             /* Register encoding, combined */
 346         struct lm85_autofan autofan[3];
 347         struct lm85_zone zone[3];
 348 };
 349
 350 static int lm85_attach_adapter(struct i2c_adapter *adapter);
 351 static int lm85_detect(struct i2c_adapter *adapter, int address,
 352                         int kind);
 353 static int lm85_detach_client(struct i2c_client *client);
 354
 355 static int lm85_read_value(struct i2c_client *client, u8 reg);
 356 static int lm85_write_value(struct i2c_client *client, u8 reg, int value);
 357 static struct lm85_data *lm85_update_device(struct device *dev);
 358 static void lm85_init_client(struct i2c_client *client);
 359
 360
 361 static struct i2c_driver lm85_driver = {
 362         .driver = {
 363                 .name   = "lm85",
 364         },
 365         .id             = I2C_DRIVERID_LM85,
 366         .attach_adapter = lm85_attach_adapter,
 367         .detach_client  = lm85_detach_client,
 368 };
 369
 370
 371 /* 4 Fans */
 372 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
 373                 char *buf)
 374 {
 375         int nr = to_sensor_dev_attr(attr)->index;
 376         struct lm85_data *data = lm85_update_device(dev);
 377         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
 378 }
 379
 380 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
 381                 char *buf)
 382 {
 383         int nr = to_sensor_dev_attr(attr)->index;
 384         struct lm85_data *data = lm85_update_device(dev);
 385         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
 386 }
 387
 388 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 389                 const char *buf, size_t count)
 390 {
 391         int nr = to_sensor_dev_attr(attr)->index;
 392         struct i2c_client *client = to_i2c_client(dev);
 393         struct lm85_data *data = i2c_get_clientdata(client);
 394         long val = simple_strtol(buf, NULL, 10);
 395
 396         mutex_lock(&data->update_lock);
 397         data->fan_min[nr] = FAN_TO_REG(val);
 398         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
 399         mutex_unlock(&data->update_lock);
 400         return count;
 401 }
 402
 403 #define show_fan_offset(offset)                                         \
 404 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,                 \
 405                 show_fan, NULL, offset - 1);                            \
 406 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,         \
 407                 show_fan_min, set_fan_min, offset - 1)
 408
 409 show_fan_offset(1);
 410 show_fan_offset(2);
 411 show_fan_offset(3);
 412 show_fan_offset(4);
 413
 414 /* vid, vrm, alarms */
 415
 416 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 417 {
 418         struct lm85_data *data = lm85_update_device(dev);
 419         int vid;
 420
 421         if (data->type == adt7463 && (data->vid & 0x80)) {
 422                 /* 6-pin VID (VRM 10) */
 423                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
 424         } else {
 425                 /* 5-pin VID (VRM 9) */
 426                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
 427         }
 428
 429         return sprintf(buf, "%d\n", vid);
 430 }
 431
 432 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 433
 434 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 435 {
 436         struct lm85_data *data = lm85_update_device(dev);
 437         return sprintf(buf, "%ld\n", (long) data->vrm);
 438 }
 439
 440 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 441 {
 442         struct i2c_client *client = to_i2c_client(dev);
 443         struct lm85_data *data = i2c_get_clientdata(client);
 444         u32 val;
 445
 446         val = simple_strtoul(buf, NULL, 10);
 447         data->vrm = val;
 448         return count;
 449 }
 450
 451 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 452
 453 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 454 {
 455         struct lm85_data *data = lm85_update_device(dev);
 456         return sprintf(buf, "%u\n", data->alarms);
 457 }
 458
 459 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 460
 461 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 462                 char *buf)
 463 {
 464         int nr = to_sensor_dev_attr(attr)->index;
 465         struct lm85_data *data = lm85_update_device(dev);
 466         return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
 467 }
 468
 469 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
 470 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
 471 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
 472 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
 473 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
 474 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
 475 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
 476 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
 477 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
 478 static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
 479 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
 480 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
 481 static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
 482 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
 483 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
 484 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
 485 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
 486
 487 /* pwm */
 488
 489 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 490                 char *buf)
 491 {
 492         int nr = to_sensor_dev_attr(attr)->index;
 493         struct lm85_data *data = lm85_update_device(dev);
 494         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 495 }
 496
 497 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
 498                 const char *buf, size_t count)
 499 {
 500         int nr = to_sensor_dev_attr(attr)->index;
 501         struct i2c_client *client = to_i2c_client(dev);
 502         struct lm85_data *data = i2c_get_clientdata(client);
 503         long val = simple_strtol(buf, NULL, 10);
 504
 505         mutex_lock(&data->update_lock);
 506         data->pwm[nr] = PWM_TO_REG(val);
 507         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 508         mutex_unlock(&data->update_lock);
 509         return count;
 510 }
 511
 512 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
 513                 *attr, char *buf)
 514 {
 515         int nr = to_sensor_dev_attr(attr)->index;
 516         struct lm85_data *data = lm85_update_device(dev);
 517         int     pwm_zone;
 518
 519         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 520         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 521 }
 522
 523 #define show_pwm_reg(offset)                                            \
 524 static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,               \
 525                 show_pwm, set_pwm, offset - 1);                         \
 526 static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                \
 527                 show_pwm_enable, NULL, offset - 1)
 528
 529 show_pwm_reg(1);
 530 show_pwm_reg(2);
 531 show_pwm_reg(3);
 532
 533 /* Voltages */
 534
 535 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 536                 char *buf)
 537 {
 538         int nr = to_sensor_dev_attr(attr)->index;
 539         struct lm85_data *data = lm85_update_device(dev);
 540         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 541                                                      data->in[nr],
 542                                                      data->in_ext[nr]));
 543 }
 544
 545 static ssize_t show_in_min(struct device *dev,  struct device_attribute *attr,
 546                 char *buf)
 547 {
 548         int nr = to_sensor_dev_attr(attr)->index;
 549         struct lm85_data *data = lm85_update_device(dev);
 550         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 551 }
 552
 553 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 554                 const char *buf, size_t count)
 555 {
 556         int nr = to_sensor_dev_attr(attr)->index;
 557         struct i2c_client *client = to_i2c_client(dev);
 558         struct lm85_data *data = i2c_get_clientdata(client);
 559         long val = simple_strtol(buf, NULL, 10);
 560
 561         mutex_lock(&data->update_lock);
 562         data->in_min[nr] = INS_TO_REG(nr, val);
 563         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 564         mutex_unlock(&data->update_lock);
 565         return count;
 566 }
 567
 568 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
 569                 char *buf)
 570 {
 571         int nr = to_sensor_dev_attr(attr)->index;
 572         struct lm85_data *data = lm85_update_device(dev);
 573         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 574 }
 575
 576 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 577                 const char *buf, size_t count)
 578 {
 579         int nr = to_sensor_dev_attr(attr)->index;
 580         struct i2c_client *client = to_i2c_client(dev);
 581         struct lm85_data *data = i2c_get_clientdata(client);
 582         long val = simple_strtol(buf, NULL, 10);
 583
 584         mutex_lock(&data->update_lock);
 585         data->in_max[nr] = INS_TO_REG(nr, val);
 586         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 587         mutex_unlock(&data->update_lock);
 588         return count;
 589 }
 590
 591 #define show_in_reg(offset)                                             \
 592 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,                  \
 593                 show_in, NULL, offset);                                 \
 594 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,          \
 595                 show_in_min, set_in_min, offset);                       \
 596 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,          \
 597                 show_in_max, set_in_max, offset)
 598
 599 show_in_reg(0);
 600 show_in_reg(1);
 601 show_in_reg(2);
 602 show_in_reg(3);
 603 show_in_reg(4);
 604 show_in_reg(5);
 605 show_in_reg(6);
 606 show_in_reg(7);
 607
 608 /* Temps */
 609
 610 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
 611                 char *buf)
 612 {
 613         int nr = to_sensor_dev_attr(attr)->index;
 614         struct lm85_data *data = lm85_update_device(dev);
 615         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 616                                                     data->temp_ext[nr]));
 617 }
 618
 619 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
 620                 char *buf)
 621 {
 622         int nr = to_sensor_dev_attr(attr)->index;
 623         struct lm85_data *data = lm85_update_device(dev);
 624         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 625 }
 626
 627 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 628                 const char *buf, size_t count)
 629 {
 630         int nr = to_sensor_dev_attr(attr)->index;
 631         struct i2c_client *client = to_i2c_client(dev);
 632         struct lm85_data *data = i2c_get_clientdata(client);
 633         long val = simple_strtol(buf, NULL, 10);
 634
 635         mutex_lock(&data->update_lock);
 636         data->temp_min[nr] = TEMP_TO_REG(val);
 637         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 638         mutex_unlock(&data->update_lock);
 639         return count;
 640 }
 641
 642 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
 643                 char *buf)
 644 {
 645         int nr = to_sensor_dev_attr(attr)->index;
 646         struct lm85_data *data = lm85_update_device(dev);
 647         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 648 }
 649
 650 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 651                 const char *buf, size_t count)
 652 {
 653         int nr = to_sensor_dev_attr(attr)->index;
 654         struct i2c_client *client = to_i2c_client(dev);
 655         struct lm85_data *data = i2c_get_clientdata(client);
 656         long val = simple_strtol(buf, NULL, 10);
 657
 658         mutex_lock(&data->update_lock);
 659         data->temp_max[nr] = TEMP_TO_REG(val);
 660         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 661         mutex_unlock(&data->update_lock);
 662         return count;
 663 }
 664
 665 #define show_temp_reg(offset)                                           \
 666 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,                \
 667                 show_temp, NULL, offset - 1);                           \
 668 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,        \
 669                 show_temp_min, set_temp_min, offset - 1);               \
 670 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,        \
 671                 show_temp_max, set_temp_max, offset - 1);
 672
 673 show_temp_reg(1);
 674 show_temp_reg(2);
 675 show_temp_reg(3);
 676
 677
 678 /* Automatic PWM control */
 679
 680 static ssize_t show_pwm_auto_channels(struct device *dev,
 681                 struct device_attribute *attr, char *buf)
 682 {
 683         int nr = to_sensor_dev_attr(attr)->index;
 684         struct lm85_data *data = lm85_update_device(dev);
 685         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 686 }
 687
 688 static ssize_t set_pwm_auto_channels(struct device *dev,
 689                 struct device_attribute *attr, const char *buf, size_t count)
 690 {
 691         int nr = to_sensor_dev_attr(attr)->index;
 692         struct i2c_client *client = to_i2c_client(dev);
 693         struct lm85_data *data = i2c_get_clientdata(client);
 694         long val = simple_strtol(buf, NULL, 10);
 695
 696         mutex_lock(&data->update_lock);
 697         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 698                 | ZONE_TO_REG(val) ;
 699         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 700                 data->autofan[nr].config);
 701         mutex_unlock(&data->update_lock);
 702         return count;
 703 }
 704
 705 static ssize_t show_pwm_auto_pwm_min(struct device *dev,
 706                 struct device_attribute *attr, char *buf)
 707 {
 708         int nr = to_sensor_dev_attr(attr)->index;
 709         struct lm85_data *data = lm85_update_device(dev);
 710         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 711 }
 712
 713 static ssize_t set_pwm_auto_pwm_min(struct device *dev,
 714                 struct device_attribute *attr, const char *buf, size_t count)
 715 {
 716         int nr = to_sensor_dev_attr(attr)->index;
 717         struct i2c_client *client = to_i2c_client(dev);
 718         struct lm85_data *data = i2c_get_clientdata(client);
 719         long val = simple_strtol(buf, NULL, 10);
 720
 721         mutex_lock(&data->update_lock);
 722         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 723         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 724                 data->autofan[nr].min_pwm);
 725         mutex_unlock(&data->update_lock);
 726         return count;
 727 }
 728
 729 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
 730                 struct device_attribute *attr, char *buf)
 731 {
 732         int nr = to_sensor_dev_attr(attr)->index;
 733         struct lm85_data *data = lm85_update_device(dev);
 734         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 735 }
 736
 737 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
 738                 struct device_attribute *attr, const char *buf, size_t count)
 739 {
 740         int nr = to_sensor_dev_attr(attr)->index;
 741         struct i2c_client *client = to_i2c_client(dev);
 742         struct lm85_data *data = i2c_get_clientdata(client);
 743         long val = simple_strtol(buf, NULL, 10);
 744
 745         mutex_lock(&data->update_lock);
 746         data->autofan[nr].min_off = val;
 747         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 748                 | data->syncpwm3
 749                 | (data->autofan[0].min_off ? 0x20 : 0)
 750                 | (data->autofan[1].min_off ? 0x40 : 0)
 751                 | (data->autofan[2].min_off ? 0x80 : 0)
 752         );
 753         mutex_unlock(&data->update_lock);
 754         return count;
 755 }
 756
 757 static ssize_t show_pwm_auto_pwm_freq(struct device *dev,
 758                 struct device_attribute *attr, char *buf)
 759 {
 760         int nr = to_sensor_dev_attr(attr)->index;
 761         struct lm85_data *data = lm85_update_device(dev);
 762         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 763 }
 764
 765 static ssize_t set_pwm_auto_pwm_freq(struct device *dev,
 766                 struct device_attribute *attr, const char *buf, size_t count)
 767 {
 768         int nr = to_sensor_dev_attr(attr)->index;
 769         struct i2c_client *client = to_i2c_client(dev);
 770         struct lm85_data *data = i2c_get_clientdata(client);
 771         long val = simple_strtol(buf, NULL, 10);
 772
 773         mutex_lock(&data->update_lock);
 774         data->autofan[nr].freq = FREQ_TO_REG(val);
 775         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 776                 (data->zone[nr].range << 4)
 777                 | data->autofan[nr].freq
 778         );
 779         mutex_unlock(&data->update_lock);
 780         return count;
 781 }
 782
 783 #define pwm_auto(offset)                                                \
 784 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels,                  \
 785                 S_IRUGO | S_IWUSR, show_pwm_auto_channels,              \
 786                 set_pwm_auto_channels, offset - 1);                     \
 787 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min,                   \
 788                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min,               \
 789                 set_pwm_auto_pwm_min, offset - 1);                      \
 790 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl,                \
 791                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl,            \
 792                 set_pwm_auto_pwm_minctl, offset - 1);                   \
 793 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq,                  \
 794                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq,              \
 795                 set_pwm_auto_pwm_freq, offset - 1);
 796
 797 pwm_auto(1);
 798 pwm_auto(2);
 799 pwm_auto(3);
 800
 801 /* Temperature settings for automatic PWM control */
 802
 803 static ssize_t show_temp_auto_temp_off(struct device *dev,
 804                 struct device_attribute *attr, char *buf)
 805 {
 806         int nr = to_sensor_dev_attr(attr)->index;
 807         struct lm85_data *data = lm85_update_device(dev);
 808         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 809                 HYST_FROM_REG(data->zone[nr].hyst));
 810 }
 811
 812 static ssize_t set_temp_auto_temp_off(struct device *dev,
 813                 struct device_attribute *attr, const char *buf, size_t count)
 814 {
 815         int nr = to_sensor_dev_attr(attr)->index;
 816         struct i2c_client *client = to_i2c_client(dev);
 817         struct lm85_data *data = i2c_get_clientdata(client);
 818         int min;
 819         long val = simple_strtol(buf, NULL, 10);
 820
 821         mutex_lock(&data->update_lock);
 822         min = TEMP_FROM_REG(data->zone[nr].limit);
 823         data->zone[nr].off_desired = TEMP_TO_REG(val);
 824         data->zone[nr].hyst = HYST_TO_REG(min - val);
 825         if ( nr == 0 || nr == 1 ) {
 826                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 827                         (data->zone[0].hyst << 4)
 828                         | data->zone[1].hyst
 829                         );
 830         } else {
 831                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 832                         (data->zone[2].hyst << 4)
 833                 );
 834         }
 835         mutex_unlock(&data->update_lock);
 836         return count;
 837 }
 838
 839 static ssize_t show_temp_auto_temp_min(struct device *dev,
 840                 struct device_attribute *attr, char *buf)
 841 {
 842         int nr = to_sensor_dev_attr(attr)->index;
 843         struct lm85_data *data = lm85_update_device(dev);
 844         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 845 }
 846
 847 static ssize_t set_temp_auto_temp_min(struct device *dev,
 848                 struct device_attribute *attr, const char *buf, size_t count)
 849 {
 850         int nr = to_sensor_dev_attr(attr)->index;
 851         struct i2c_client *client = to_i2c_client(dev);
 852         struct lm85_data *data = i2c_get_clientdata(client);
 853         long val = simple_strtol(buf, NULL, 10);
 854
 855         mutex_lock(&data->update_lock);
 856         data->zone[nr].limit = TEMP_TO_REG(val);
 857         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 858                 data->zone[nr].limit);
 859
 860 /* Update temp_auto_max and temp_auto_range */
 861         data->zone[nr].range = RANGE_TO_REG(
 862                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 863                 TEMP_FROM_REG(data->zone[nr].limit));
 864         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 865                 ((data->zone[nr].range & 0x0f) << 4)
 866                 | (data->autofan[nr].freq & 0x07));
 867
 868 /* Update temp_auto_hyst and temp_auto_off */
 869         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 870                 data->zone[nr].limit) - TEMP_FROM_REG(
 871                 data->zone[nr].off_desired));
 872         if ( nr == 0 || nr == 1 ) {
 873                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 874                         (data->zone[0].hyst << 4)
 875                         | data->zone[1].hyst
 876                         );
 877         } else {
 878                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 879                         (data->zone[2].hyst << 4)
 880                 );
 881         }
 882         mutex_unlock(&data->update_lock);
 883         return count;
 884 }
 885
 886 static ssize_t show_temp_auto_temp_max(struct device *dev,
 887                 struct device_attribute *attr, char *buf)
 888 {
 889         int nr = to_sensor_dev_attr(attr)->index;
 890         struct lm85_data *data = lm85_update_device(dev);
 891         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 892                 RANGE_FROM_REG(data->zone[nr].range));
 893 }
 894
 895 static ssize_t set_temp_auto_temp_max(struct device *dev,
 896                 struct device_attribute *attr, const char *buf, size_t count)
 897 {
 898         int nr = to_sensor_dev_attr(attr)->index;
 899         struct i2c_client *client = to_i2c_client(dev);
 900         struct lm85_data *data = i2c_get_clientdata(client);
 901         int min;
 902         long val = simple_strtol(buf, NULL, 10);
 903
 904         mutex_lock(&data->update_lock);
 905         min = TEMP_FROM_REG(data->zone[nr].limit);
 906         data->zone[nr].max_desired = TEMP_TO_REG(val);
 907         data->zone[nr].range = RANGE_TO_REG(
 908                 val - min);
 909         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 910                 ((data->zone[nr].range & 0x0f) << 4)
 911                 | (data->autofan[nr].freq & 0x07));
 912         mutex_unlock(&data->update_lock);
 913         return count;
 914 }
 915
 916 static ssize_t show_temp_auto_temp_crit(struct device *dev,
 917                 struct device_attribute *attr, char *buf)
 918 {
 919         int nr = to_sensor_dev_attr(attr)->index;
 920         struct lm85_data *data = lm85_update_device(dev);
 921         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 922 }
 923
 924 static ssize_t set_temp_auto_temp_crit(struct device *dev,
 925                 struct device_attribute *attr,const char *buf, size_t count)
 926 {
 927         int nr = to_sensor_dev_attr(attr)->index;
 928         struct i2c_client *client = to_i2c_client(dev);
 929         struct lm85_data *data = i2c_get_clientdata(client);
 930         long val = simple_strtol(buf, NULL, 10);
 931
 932         mutex_lock(&data->update_lock);
 933         data->zone[nr].critical = TEMP_TO_REG(val);
 934         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 935                 data->zone[nr].critical);
 936         mutex_unlock(&data->update_lock);
 937         return count;
 938 }
 939
 940 #define temp_auto(offset)                                               \
 941 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off,                 \
 942                 S_IRUGO | S_IWUSR, show_temp_auto_temp_off,             \
 943                 set_temp_auto_temp_off, offset - 1);                    \
 944 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min,                 \
 945                 S_IRUGO | S_IWUSR, show_temp_auto_temp_min,             \
 946                 set_temp_auto_temp_min, offset - 1);                    \
 947 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max,                 \
 948                 S_IRUGO | S_IWUSR, show_temp_auto_temp_max,             \
 949                 set_temp_auto_temp_max, offset - 1);                    \
 950 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit,                \
 951                 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit,            \
 952                 set_temp_auto_temp_crit, offset - 1);
 953
 954 temp_auto(1);
 955 temp_auto(2);
 956 temp_auto(3);
 957
 958 static int lm85_attach_adapter(struct i2c_adapter *adapter)
 959 {
 960         if (!(adapter->class & I2C_CLASS_HWMON))
 961                 return 0;
 962         return i2c_probe(adapter, &addr_data, lm85_detect);
 963 }
 964
 965 static struct attribute *lm85_attributes[] = {
 966         &sensor_dev_attr_fan1_input.dev_attr.attr,
 967         &sensor_dev_attr_fan2_input.dev_attr.attr,
 968         &sensor_dev_attr_fan3_input.dev_attr.attr,
 969         &sensor_dev_attr_fan4_input.dev_attr.attr,
 970         &sensor_dev_attr_fan1_min.dev_attr.attr,
 971         &sensor_dev_attr_fan2_min.dev_attr.attr,
 972         &sensor_dev_attr_fan3_min.dev_attr.attr,
 973         &sensor_dev_attr_fan4_min.dev_attr.attr,
 974         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
 975         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
 976         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
 977         &sensor_dev_attr_fan4_alarm.dev_attr.attr,
 978
 979         &sensor_dev_attr_pwm1.dev_attr.attr,
 980         &sensor_dev_attr_pwm2.dev_attr.attr,
 981         &sensor_dev_attr_pwm3.dev_attr.attr,
 982         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
 983         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
 984         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
 985
 986         &sensor_dev_attr_in0_input.dev_attr.attr,
 987         &sensor_dev_attr_in1_input.dev_attr.attr,
 988         &sensor_dev_attr_in2_input.dev_attr.attr,
 989         &sensor_dev_attr_in3_input.dev_attr.attr,
 990         &sensor_dev_attr_in0_min.dev_attr.attr,
 991         &sensor_dev_attr_in1_min.dev_attr.attr,
 992         &sensor_dev_attr_in2_min.dev_attr.attr,
 993         &sensor_dev_attr_in3_min.dev_attr.attr,
 994         &sensor_dev_attr_in0_max.dev_attr.attr,
 995         &sensor_dev_attr_in1_max.dev_attr.attr,
 996         &sensor_dev_attr_in2_max.dev_attr.attr,
 997         &sensor_dev_attr_in3_max.dev_attr.attr,
 998         &sensor_dev_attr_in0_alarm.dev_attr.attr,
 999         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1000         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1001         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1002
1003         &sensor_dev_attr_temp1_input.dev_attr.attr,
1004         &sensor_dev_attr_temp2_input.dev_attr.attr,
1005         &sensor_dev_attr_temp3_input.dev_attr.attr,
1006         &sensor_dev_attr_temp1_min.dev_attr.attr,
1007         &sensor_dev_attr_temp2_min.dev_attr.attr,
1008         &sensor_dev_attr_temp3_min.dev_attr.attr,
1009         &sensor_dev_attr_temp1_max.dev_attr.attr,
1010         &sensor_dev_attr_temp2_max.dev_attr.attr,
1011         &sensor_dev_attr_temp3_max.dev_attr.attr,
1012         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1013         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1014         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1015         &sensor_dev_attr_temp1_fault.dev_attr.attr,
1016         &sensor_dev_attr_temp3_fault.dev_attr.attr,
1017
1018         &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1019         &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1020         &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1021         &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1022         &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1023         &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1024         &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1025         &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1026         &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
1027         &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr,
1028         &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr,
1029         &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr,
1030
1031         &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1032         &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1033         &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1034         &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1035         &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1036         &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1037         &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1038         &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1039         &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1040         &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1041         &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1042         &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1043
1044         &dev_attr_vrm.attr,
1045         &dev_attr_cpu0_vid.attr,
1046         &dev_attr_alarms.attr,
1047         NULL
1048 };
1049
1050 static const struct attribute_group lm85_group = {
1051         .attrs = lm85_attributes,
1052 };
1053
1054 static struct attribute *lm85_attributes_in4[] = {
1055         &sensor_dev_attr_in4_input.dev_attr.attr,
1056         &sensor_dev_attr_in4_min.dev_attr.attr,
1057         &sensor_dev_attr_in4_max.dev_attr.attr,
1058         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1059         NULL
1060 };
1061
1062 static const struct attribute_group lm85_group_in4 = {
1063         .attrs = lm85_attributes_in4,
1064 };
1065
1066 static struct attribute *lm85_attributes_in567[] = {
1067         &sensor_dev_attr_in5_input.dev_attr.attr,
1068         &sensor_dev_attr_in6_input.dev_attr.attr,
1069         &sensor_dev_attr_in7_input.dev_attr.attr,
1070         &sensor_dev_attr_in5_min.dev_attr.attr,
1071         &sensor_dev_attr_in6_min.dev_attr.attr,
1072         &sensor_dev_attr_in7_min.dev_attr.attr,
1073         &sensor_dev_attr_in5_max.dev_attr.attr,
1074         &sensor_dev_attr_in6_max.dev_attr.attr,
1075         &sensor_dev_attr_in7_max.dev_attr.attr,
1076         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1077         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1078         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1079         NULL
1080 };
1081
1082 static const struct attribute_group lm85_group_in567 = {
1083         .attrs = lm85_attributes_in567,
1084 };
1085
1086 static int lm85_detect(struct i2c_adapter *adapter, int address,
1087                 int kind)
1088 {
1089         int company, verstep ;
1090         struct i2c_client *new_client = NULL;
1091         struct lm85_data *data;
1092         int err = 0;
1093         const char *type_name = "";
1094
1095         if (!i2c_check_functionality(adapter,
1096                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1097                 /* We need to be able to do byte I/O */
1098                 goto ERROR0 ;
1099         };
1100
1101         /* OK. For now, we presume we have a valid client. We now create the
1102            client structure, even though we cannot fill it completely yet.
1103            But it allows us to access lm85_{read,write}_value. */
1104
1105         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1106                 err = -ENOMEM;
1107                 goto ERROR0;
1108         }
1109
1110         new_client = &data->client;
1111         i2c_set_clientdata(new_client, data);
1112         new_client->addr = address;
1113         new_client->adapter = adapter;
1114         new_client->driver = &lm85_driver;
1115         new_client->flags = 0;
1116
1117         /* Now, we do the remaining detection. */
1118
1119         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1120         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1121
1122         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1123                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1124                 i2c_adapter_id(new_client->adapter), new_client->addr,
1125                 company, verstep);
1126
1127         /* If auto-detecting, Determine the chip type. */
1128         if (kind <= 0) {
1129                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1130                         i2c_adapter_id(adapter), address );
1131                 if( company == LM85_COMPANY_NATIONAL
1132                     && verstep == LM85_VERSTEP_LM85C ) {
1133                         kind = lm85c ;
1134                 } else if( company == LM85_COMPANY_NATIONAL
1135                     && verstep == LM85_VERSTEP_LM85B ) {
1136                         kind = lm85b ;
1137                 } else if( company == LM85_COMPANY_NATIONAL
1138                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1139                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1140                                 " Defaulting to LM85.\n", verstep);
1141                         kind = any_chip ;
1142                 } else if( company == LM85_COMPANY_ANALOG_DEV
1143                     && verstep == LM85_VERSTEP_ADM1027 ) {
1144                         kind = adm1027 ;
1145                 } else if( company == LM85_COMPANY_ANALOG_DEV
1146                     && (verstep == LM85_VERSTEP_ADT7463
1147                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1148                         kind = adt7463 ;
1149                 } else if( company == LM85_COMPANY_ANALOG_DEV
1150                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1151                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1152                                 " Defaulting to Generic LM85.\n", verstep );
1153                         kind = any_chip ;
1154                 } else if( company == LM85_COMPANY_SMSC
1155                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1156                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1157                         /* Unfortunately, we can't tell a '100 from a '101
1158                          * from the registers.  Since a '101 is a '100
1159                          * in a package with fewer pins and therefore no
1160                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1161                          * inputs read 0, then it's a '101.
1162                          */
1163                         kind = emc6d100 ;
1164                 } else if( company == LM85_COMPANY_SMSC
1165                     && verstep == LM85_VERSTEP_EMC6D102) {
1166                         kind = emc6d102 ;
1167                 } else if( company == LM85_COMPANY_SMSC
1168                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1169                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1170                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1171                             " Defaulting to Generic LM85.\n", verstep );
1172                         kind = any_chip ;
1173                 } else if( kind == any_chip
1174                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1175                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1176                         /* Leave kind as "any_chip" */
1177                 } else {
1178                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1179                         /* Not an LM85 ... */
1180                         if( kind == any_chip ) {  /* User used force=x,y */
1181                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1182                                         " found at %d,0x%02x. Try force_lm85c.\n",
1183                                         i2c_adapter_id(adapter), address );
1184                         }
1185                         err = 0 ;
1186                         goto ERROR1;
1187                 }
1188         }
1189
1190         /* Fill in the chip specific driver values */
1191         if ( kind == any_chip ) {
1192                 type_name = "lm85";
1193         } else if ( kind == lm85b ) {
1194                 type_name = "lm85b";
1195         } else if ( kind == lm85c ) {
1196                 type_name = "lm85c";
1197         } else if ( kind == adm1027 ) {
1198                 type_name = "adm1027";
1199         } else if ( kind == adt7463 ) {
1200                 type_name = "adt7463";
1201         } else if ( kind == emc6d100){
1202                 type_name = "emc6d100";
1203         } else if ( kind == emc6d102 ) {
1204                 type_name = "emc6d102";
1205         }
1206         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1207
1208         /* Fill in the remaining client fields */
1209         data->type = kind;
1210         data->valid = 0;
1211         mutex_init(&data->update_lock);
1212
1213         /* Tell the I2C layer a new client has arrived */
1214         if ((err = i2c_attach_client(new_client)))
1215                 goto ERROR1;
1216
1217         /* Set the VRM version */
1218         data->vrm = vid_which_vrm();
1219
1220         /* Initialize the LM85 chip */
1221         lm85_init_client(new_client);
1222
1223         /* Register sysfs hooks */
1224         if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
1225                 goto ERROR2;
1226
1227         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1228            as a sixth digital VID input rather than an analog input. */
1229         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1230         if (!(kind == adt7463 && (data->vid & 0x80)))
1231                 if ((err = sysfs_create_group(&new_client->dev.kobj,
1232                                         &lm85_group_in4)))
1233                         goto ERROR3;
1234
1235         /* The EMC6D100 has 3 additional voltage inputs */
1236         if (kind == emc6d100)
1237                 if ((err = sysfs_create_group(&new_client->dev.kobj,
1238                                         &lm85_group_in567)))
1239                         goto ERROR3;
1240
1241         data->hwmon_dev = hwmon_device_register(&new_client->dev);
1242         if (IS_ERR(data->hwmon_dev)) {
1243                 err = PTR_ERR(data->hwmon_dev);
1244                 goto ERROR3;
1245         }
1246
1247         return 0;
1248
1249         /* Error out and cleanup code */
1250     ERROR3:
1251         sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
1252         sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in4);
1253         if (kind == emc6d100)
1254                 sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in567);
1255     ERROR2:
1256         i2c_detach_client(new_client);
1257     ERROR1:
1258         kfree(data);
1259     ERROR0:
1260         return err;
1261 }
1262
1263 static int lm85_detach_client(struct i2c_client *client)
1264 {
1265         struct lm85_data *data = i2c_get_clientdata(client);
1266         hwmon_device_unregister(data->hwmon_dev);
1267         sysfs_remove_group(&client->dev.kobj, &lm85_group);
1268         sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1269         if (data->type == emc6d100)
1270                 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1271         i2c_detach_client(client);
1272         kfree(data);
1273         return 0;
1274 }
1275
1276
1277 static int lm85_read_value(struct i2c_client *client, u8 reg)
1278 {
1279         int res;
1280
1281         /* What size location is it? */
1282         switch( reg ) {
1283         case LM85_REG_FAN(0) :  /* Read WORD data */
1284         case LM85_REG_FAN(1) :
1285         case LM85_REG_FAN(2) :
1286         case LM85_REG_FAN(3) :
1287         case LM85_REG_FAN_MIN(0) :
1288         case LM85_REG_FAN_MIN(1) :
1289         case LM85_REG_FAN_MIN(2) :
1290         case LM85_REG_FAN_MIN(3) :
1291         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1292                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1293                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1294                 break ;
1295         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1296                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1297                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1298                 break ;
1299         default:        /* Read BYTE data */
1300                 res = i2c_smbus_read_byte_data(client, reg);
1301                 break ;
1302         }
1303
1304         return res ;
1305 }
1306
1307 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1308 {
1309         int res ;
1310
1311         switch( reg ) {
1312         case LM85_REG_FAN(0) :  /* Write WORD data */
1313         case LM85_REG_FAN(1) :
1314         case LM85_REG_FAN(2) :
1315         case LM85_REG_FAN(3) :
1316         case LM85_REG_FAN_MIN(0) :
1317         case LM85_REG_FAN_MIN(1) :
1318         case LM85_REG_FAN_MIN(2) :
1319         case LM85_REG_FAN_MIN(3) :
1320         /* NOTE: ALARM is read only, so not included here */
1321                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1322                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1323                 break ;
1324         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1325                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1326                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1327                 break ;
1328         default:        /* Write BYTE data */
1329                 res = i2c_smbus_write_byte_data(client, reg, value);
1330                 break ;
1331         }
1332
1333         return res ;
1334 }
1335
1336 static void lm85_init_client(struct i2c_client *client)
1337 {
1338         int value;
1339         struct lm85_data *data = i2c_get_clientdata(client);
1340
1341         dev_dbg(&client->dev, "Initializing device\n");
1342
1343         /* Warn if part was not "READY" */
1344         value = lm85_read_value(client, LM85_REG_CONFIG);
1345         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1346         if( value & 0x02 ) {
1347                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1348                             i2c_adapter_id(client->adapter), client->addr );
1349         };
1350         if( ! (value & 0x04) ) {
1351                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1352                             i2c_adapter_id(client->adapter), client->addr );
1353         };
1354         if( value & 0x10
1355             && ( data->type == adm1027
1356                 || data->type == adt7463 ) ) {
1357                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1358                         "Please report this to the lm85 maintainer.\n",
1359                             i2c_adapter_id(client->adapter), client->addr );
1360         };
1361
1362         /* WE INTENTIONALLY make no changes to the limits,
1363          *   offsets, pwms, fans and zones.  If they were
1364          *   configured, we don't want to mess with them.
1365          *   If they weren't, the default is 100% PWM, no
1366          *   control and will suffice until 'sensors -s'
1367          *   can be run by the user.
1368          */
1369
1370         /* Start monitoring */
1371         value = lm85_read_value(client, LM85_REG_CONFIG);
1372         /* Try to clear LOCK, Set START, save everything else */
1373         value = (value & ~ 0x02) | 0x01 ;
1374         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1375         lm85_write_value(client, LM85_REG_CONFIG, value);
1376 }
1377
1378 static struct lm85_data *lm85_update_device(struct device *dev)
1379 {
1380         struct i2c_client *client = to_i2c_client(dev);
1381         struct lm85_data *data = i2c_get_clientdata(client);
1382         int i;
1383
1384         mutex_lock(&data->update_lock);
1385
1386         if ( !data->valid ||
1387              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1388                 /* Things that change quickly */
1389                 dev_dbg(&client->dev, "Reading sensor values\n");
1390
1391                 /* Have to read extended bits first to "freeze" the
1392                  * more significant bits that are read later.
1393                  * There are 2 additional resolution bits per channel and we
1394                  * have room for 4, so we shift them to the left.
1395                  */
1396                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1397                         int ext1 = lm85_read_value(client,
1398                                                    ADM1027_REG_EXTEND_ADC1);
1399                         int ext2 =  lm85_read_value(client,
1400                                                     ADM1027_REG_EXTEND_ADC2);
1401                         int val = (ext1 << 8) + ext2;
1402
1403                         for(i = 0; i <= 4; i++)
1404                                 data->in_ext[i] = ((val>>(i * 2))&0x03) << 2;
1405
1406                         for(i = 0; i <= 2; i++)
1407                                 data->temp_ext[i] = (val>>((i + 4) * 2))&0x0c;
1408                 }
1409
1410                 data->vid = lm85_read_value(client, LM85_REG_VID);
1411
1412                 for (i = 0; i <= 3; ++i) {
1413                         data->in[i] =
1414                             lm85_read_value(client, LM85_REG_IN(i));
1415                 }
1416
1417                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1418                         data->in[4] = lm85_read_value(client,
1419                                       LM85_REG_IN(4));
1420                 }
1421
1422                 for (i = 0; i <= 3; ++i) {
1423                         data->fan[i] =
1424                             lm85_read_value(client, LM85_REG_FAN(i));
1425                 }
1426
1427                 for (i = 0; i <= 2; ++i) {
1428                         data->temp[i] =
1429                             lm85_read_value(client, LM85_REG_TEMP(i));
1430                 }
1431
1432                 for (i = 0; i <= 2; ++i) {
1433                         data->pwm[i] =
1434                             lm85_read_value(client, LM85_REG_PWM(i));
1435                 }
1436
1437                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1438
1439                 if ( data->type == adt7463 ) {
1440                         if( data->therm_total < ULONG_MAX - 256 ) {
1441                             data->therm_total +=
1442                                 lm85_read_value(client, ADT7463_REG_THERM );
1443                         }
1444                 } else if ( data->type == emc6d100 ) {
1445                         /* Three more voltage sensors */
1446                         for (i = 5; i <= 7; ++i) {
1447                                 data->in[i] =
1448                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1449                         }
1450                         /* More alarm bits */
1451                         data->alarms |=
1452                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1453                 } else if (data->type == emc6d102 ) {
1454                         /* Have to read LSB bits after the MSB ones because
1455                            the reading of the MSB bits has frozen the
1456                            LSBs (backward from the ADM1027).
1457                          */
1458                         int ext1 = lm85_read_value(client,
1459                                                    EMC6D102_REG_EXTEND_ADC1);
1460                         int ext2 = lm85_read_value(client,
1461                                                    EMC6D102_REG_EXTEND_ADC2);
1462                         int ext3 = lm85_read_value(client,
1463                                                    EMC6D102_REG_EXTEND_ADC3);
1464                         int ext4 = lm85_read_value(client,
1465                                                    EMC6D102_REG_EXTEND_ADC4);
1466                         data->in_ext[0] = ext3 & 0x0f;
1467                         data->in_ext[1] = ext4 & 0x0f;
1468                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1469                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1470                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1471
1472                         data->temp_ext[0] = ext1 & 0x0f;
1473                         data->temp_ext[1] = ext2 & 0x0f;
1474                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1475                 }
1476
1477                 data->last_reading = jiffies ;
1478         };  /* last_reading */
1479
1480         if ( !data->valid ||
1481              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1482                 /* Things that don't change often */
1483                 dev_dbg(&client->dev, "Reading config values\n");
1484
1485                 for (i = 0; i <= 3; ++i) {
1486                         data->in_min[i] =
1487                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1488                         data->in_max[i] =
1489                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1490                 }
1491
1492                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1493                         data->in_min[4] = lm85_read_value(client,
1494                                           LM85_REG_IN_MIN(4));
1495                         data->in_max[4] = lm85_read_value(client,
1496                                           LM85_REG_IN_MAX(4));
1497                 }
1498
1499                 if ( data->type == emc6d100 ) {
1500                         for (i = 5; i <= 7; ++i) {
1501                                 data->in_min[i] =
1502                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1503                                 data->in_max[i] =
1504                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1505                         }
1506                 }
1507
1508                 for (i = 0; i <= 3; ++i) {
1509                         data->fan_min[i] =
1510                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1511                 }
1512
1513                 for (i = 0; i <= 2; ++i) {
1514                         data->temp_min[i] =
1515                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1516                         data->temp_max[i] =
1517                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1518                 }
1519
1520                 for (i = 0; i <= 2; ++i) {
1521                         int val ;
1522                         data->autofan[i].config =
1523                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1524                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1525                         data->autofan[i].freq = val & 0x07 ;
1526                         data->zone[i].range = (val >> 4) & 0x0f ;
1527                         data->autofan[i].min_pwm =
1528                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1529                         data->zone[i].limit =
1530                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1531                         data->zone[i].critical =
1532                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1533                 }
1534
1535                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1536                 data->smooth[0] = i & 0x0f ;
1537                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1538                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1539                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1540                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1541                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1542                 data->smooth[1] = (i>>4) & 0x0f ;
1543                 data->smooth[2] = i & 0x0f ;
1544
1545                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1546                 data->zone[0].hyst = (i>>4) & 0x0f ;
1547                 data->zone[1].hyst = i & 0x0f ;
1548
1549                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1550                 data->zone[2].hyst = (i>>4) & 0x0f ;
1551
1552                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1553                         data->tach_mode = lm85_read_value(client,
1554                                 LM85_REG_TACH_MODE );
1555                         data->spinup_ctl = lm85_read_value(client,
1556                                 LM85_REG_SPINUP_CTL );
1557                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1558                         if ( data->type == adt7463 ) {
1559                                 for (i = 0; i <= 2; ++i) {
1560                                     data->oppoint[i] = lm85_read_value(client,
1561                                         ADT7463_REG_OPPOINT(i) );
1562                                 }
1563                                 data->tmin_ctl = lm85_read_value(client,
1564                                         ADT7463_REG_TMIN_CTL1 );
1565                                 data->therm_limit = lm85_read_value(client,
1566                                         ADT7463_REG_THERM_LIMIT );
1567                         }
1568                         for (i = 0; i <= 2; ++i) {
1569                             data->temp_offset[i] = lm85_read_value(client,
1570                                 ADM1027_REG_TEMP_OFFSET(i) );
1571                         }
1572                         data->tach_mode = lm85_read_value(client,
1573                                 ADM1027_REG_CONFIG3 );
1574                         data->fan_ppr = lm85_read_value(client,
1575                                 ADM1027_REG_FAN_PPR );
1576                 }
1577
1578                 data->last_config = jiffies;
1579         };  /* last_config */
1580
1581         data->valid = 1;
1582
1583         mutex_unlock(&data->update_lock);
1584
1585         return data;
1586 }
1587
1588
1589 static int __init sm_lm85_init(void)
1590 {
1591         return i2c_add_driver(&lm85_driver);
1592 }
1593
1594 static void  __exit sm_lm85_exit(void)
1595 {
1596         i2c_del_driver(&lm85_driver);
1597 }
1598
1599 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1600  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1601  *     post 2.7.0 CVS changes.
1602  */
1603 MODULE_LICENSE("GPL");
1604 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1605 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1606
1607 module_init(sm_lm85_init);
1608 module_exit(sm_lm85_exit);