git.oblomov.eu Git - linux-2.6/blob - drivers/hwmon/lm85.c

   1 /*
   2     lm85.c - Part of lm_sensors, Linux kernel modules for hardware
   3              monitoring
   4     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
   5     Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
   6     Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
   7     Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
   8
   9     Chip details at           <http://www.national.com/ds/LM/LM85.pdf>
  10
  11     This program is free software; you can redistribute it and/or modify
  12     it under the terms of the GNU General Public License as published by
  13     the Free Software Foundation; either version 2 of the License, or
  14     (at your option) any later version.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with this program; if not, write to the Free Software
  23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/jiffies.h>
  30 #include <linux/i2c.h>
  31 #include <linux/hwmon.h>
  32 #include <linux/hwmon-vid.h>
  33 #include <linux/err.h>
  34 #include <linux/mutex.h>
  35
  36 /* Addresses to scan */
  37 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
  38
  39 /* Insmod parameters */
  40 I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
  41
  42 /* The LM85 registers */
  43
  44 #define LM85_REG_IN(nr)                 (0x20 + (nr))
  45 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
  46 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
  47
  48 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
  49 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
  50 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
  51
  52 /* Fan speeds are LSB, MSB (2 bytes) */
  53 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
  54 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
  55
  56 #define LM85_REG_PWM(nr)                (0x30 + (nr))
  57
  58 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
  59
  60 #define ADT7463_REG_TMIN_CTL1           0x36
  61 #define ADT7463_REG_TMIN_CTL2           0x37
  62
  63 #define LM85_REG_DEVICE                 0x3d
  64 #define LM85_REG_COMPANY                0x3e
  65 #define LM85_REG_VERSTEP                0x3f
  66 /* These are the recognized values for the above regs */
  67 #define LM85_DEVICE_ADX                 0x27
  68 #define LM85_COMPANY_NATIONAL           0x01
  69 #define LM85_COMPANY_ANALOG_DEV         0x41
  70 #define LM85_COMPANY_SMSC               0x5c
  71 #define LM85_VERSTEP_VMASK              0xf0
  72 #define LM85_VERSTEP_GENERIC            0x60
  73 #define LM85_VERSTEP_LM85C              0x60
  74 #define LM85_VERSTEP_LM85B              0x62
  75 #define LM85_VERSTEP_ADM1027            0x60
  76 #define LM85_VERSTEP_ADT7463            0x62
  77 #define LM85_VERSTEP_ADT7463C           0x6A
  78 #define LM85_VERSTEP_EMC6D100_A0        0x60
  79 #define LM85_VERSTEP_EMC6D100_A1        0x61
  80 #define LM85_VERSTEP_EMC6D102           0x65
  81
  82 #define LM85_REG_CONFIG                 0x40
  83
  84 #define LM85_REG_ALARM1                 0x41
  85 #define LM85_REG_ALARM2                 0x42
  86
  87 #define LM85_REG_VID                    0x43
  88
  89 /* Automated FAN control */
  90 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
  91 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
  92 #define LM85_REG_AFAN_SPIKE1            0x62
  93 #define LM85_REG_AFAN_SPIKE2            0x63
  94 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
  95 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
  96 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
  97 #define LM85_REG_AFAN_HYST1             0x6d
  98 #define LM85_REG_AFAN_HYST2             0x6e
  99
 100 #define LM85_REG_TACH_MODE              0x74
 101 #define LM85_REG_SPINUP_CTL             0x75
 102
 103 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
 104 #define ADM1027_REG_CONFIG2             0x73
 105 #define ADM1027_REG_INTMASK1            0x74
 106 #define ADM1027_REG_INTMASK2            0x75
 107 #define ADM1027_REG_EXTEND_ADC1         0x76
 108 #define ADM1027_REG_EXTEND_ADC2         0x77
 109 #define ADM1027_REG_CONFIG3             0x78
 110 #define ADM1027_REG_FAN_PPR             0x7b
 111
 112 #define ADT7463_REG_THERM               0x79
 113 #define ADT7463_REG_THERM_LIMIT         0x7A
 114
 115 #define EMC6D100_REG_ALARM3             0x7d
 116 /* IN5, IN6 and IN7 */
 117 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
 118 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
 119 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
 120 #define EMC6D102_REG_EXTEND_ADC1        0x85
 121 #define EMC6D102_REG_EXTEND_ADC2        0x86
 122 #define EMC6D102_REG_EXTEND_ADC3        0x87
 123 #define EMC6D102_REG_EXTEND_ADC4        0x88
 124
 125 #define LM85_ALARM_IN0                  0x0001
 126 #define LM85_ALARM_IN1                  0x0002
 127 #define LM85_ALARM_IN2                  0x0004
 128 #define LM85_ALARM_IN3                  0x0008
 129 #define LM85_ALARM_TEMP1                0x0010
 130 #define LM85_ALARM_TEMP2                0x0020
 131 #define LM85_ALARM_TEMP3                0x0040
 132 #define LM85_ALARM_ALARM2               0x0080
 133 #define LM85_ALARM_IN4                  0x0100
 134 #define LM85_ALARM_RESERVED             0x0200
 135 #define LM85_ALARM_FAN1                 0x0400
 136 #define LM85_ALARM_FAN2                 0x0800
 137 #define LM85_ALARM_FAN3                 0x1000
 138 #define LM85_ALARM_FAN4                 0x2000
 139 #define LM85_ALARM_TEMP1_FAULT          0x4000
 140 #define LM85_ALARM_TEMP3_FAULT          0x8000
 141
 142
 143 /* Conversions. Rounding and limit checking is only done on the TO_REG
 144    variants. Note that you should be a bit careful with which arguments
 145    these macros are called: arguments may be evaluated more than once.
 146  */
 147
 148 /* IN are scaled acording to built-in resistors */
 149 static int lm85_scaling[] = {  /* .001 Volts */
 150                 2500, 2250, 3300, 5000, 12000,
 151                 3300, 1500, 1800 /*EMC6D100*/
 152         };
 153 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
 154
 155 #define INS_TO_REG(n,val)       \
 156                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
 157
 158 #define INSEXT_FROM_REG(n,val,ext,scale)        \
 159                 SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n])
 160
 161 #define INS_FROM_REG(n,val)   INSEXT_FROM_REG(n,val,0,1)
 162
 163 /* FAN speed is measured using 90kHz clock */
 164 #define FAN_TO_REG(val)         (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
 165 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
 166
 167 /* Temperature is reported in .001 degC increments */
 168 #define TEMP_TO_REG(val)        \
 169                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
 170 #define TEMPEXT_FROM_REG(val,ext,scale) \
 171                 SCALE((val)*scale + (ext),scale,1000)
 172 #define TEMP_FROM_REG(val)      \
 173                 TEMPEXT_FROM_REG(val,0,1)
 174
 175 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
 176 #define PWM_FROM_REG(val)               (val)
 177
 178
 179 /* ZONEs have the following parameters:
 180  *    Limit (low) temp,           1. degC
 181  *    Hysteresis (below limit),   1. degC (0-15)
 182  *    Range of speed control,     .1 degC (2-80)
 183  *    Critical (high) temp,       1. degC
 184  *
 185  * FAN PWMs have the following parameters:
 186  *    Reference Zone,                 1, 2, 3, etc.
 187  *    Spinup time,                    .05 sec
 188  *    PWM value at limit/low temp,    1 count
 189  *    PWM Frequency,                  1. Hz
 190  *    PWM is Min or OFF below limit,  flag
 191  *    Invert PWM output,              flag
 192  *
 193  * Some chips filter the temp, others the fan.
 194  *    Filter constant (or disabled)   .1 seconds
 195  */
 196
 197 /* These are the zone temperature range encodings in .001 degree C */
 198 static int lm85_range_map[] = {
 199                 2000,  2500,  3300,  4000,  5000,  6600,
 200                 8000, 10000, 13300, 16000, 20000, 26600,
 201                 32000, 40000, 53300, 80000
 202         };
 203 static int RANGE_TO_REG( int range )
 204 {
 205         int i;
 206
 207         if ( range < lm85_range_map[0] ) {
 208                 return 0 ;
 209         } else if ( range > lm85_range_map[15] ) {
 210                 return 15 ;
 211         } else {  /* find closest match */
 212                 for ( i = 14 ; i >= 0 ; --i ) {
 213                         if ( range > lm85_range_map[i] ) { /* range bracketed */
 214                                 if ((lm85_range_map[i+1] - range) <
 215                                         (range - lm85_range_map[i])) {
 216                                         i++;
 217                                         break;
 218                                 }
 219                                 break;
 220                         }
 221                 }
 222         }
 223         return( i & 0x0f );
 224 }
 225 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
 226
 227 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
 228  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
 229  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
 230  *       is ignored, or set to 0.
 231  */
 232 /* These are the PWM frequency encodings */
 233 static int lm85_freq_map[] = { /* .1 Hz */
 234                 100, 150, 230, 300, 380, 470, 620, 940
 235         };
 236 static int FREQ_TO_REG( int freq )
 237 {
 238         int i;
 239
 240         if( freq >= lm85_freq_map[7] ) { return 7 ; }
 241         for( i = 0 ; i < 7 ; ++i )
 242                 if( freq <= lm85_freq_map[i] )
 243                         break ;
 244         return( i & 0x07 );
 245 }
 246 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
 247
 248 /* Since we can't use strings, I'm abusing these numbers
 249  *   to stand in for the following meanings:
 250  *      1 -- PWM responds to Zone 1
 251  *      2 -- PWM responds to Zone 2
 252  *      3 -- PWM responds to Zone 3
 253  *     23 -- PWM responds to the higher temp of Zone 2 or 3
 254  *    123 -- PWM responds to highest of Zone 1, 2, or 3
 255  *      0 -- PWM is always at 0% (ie, off)
 256  *     -1 -- PWM is always at 100%
 257  *     -2 -- PWM responds to manual control
 258  */
 259
 260 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
 261 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
 262
 263 static int ZONE_TO_REG( int zone )
 264 {
 265         int i;
 266
 267         for( i = 0 ; i <= 7 ; ++i )
 268                 if( zone == lm85_zone_map[i] )
 269                         break ;
 270         if( i > 7 )   /* Not found. */
 271                 i = 3;  /* Always 100% */
 272         return( (i & 0x07)<<5 );
 273 }
 274
 275 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
 276 #define HYST_FROM_REG(val) ((val)*1000)
 277
 278 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
 279 #define OFFSET_FROM_REG(val) ((val)*25)
 280
 281 #define PPR_MASK(fan) (0x03<<(fan *2))
 282 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
 283 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
 284
 285 /* Chip sampling rates
 286  *
 287  * Some sensors are not updated more frequently than once per second
 288  *    so it doesn't make sense to read them more often than that.
 289  *    We cache the results and return the saved data if the driver
 290  *    is called again before a second has elapsed.
 291  *
 292  * Also, there is significant configuration data for this chip
 293  *    given the automatic PWM fan control that is possible.  There
 294  *    are about 47 bytes of config data to only 22 bytes of actual
 295  *    readings.  So, we keep the config data up to date in the cache
 296  *    when it is written and only sample it once every 1 *minute*
 297  */
 298 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
 299 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
 300
 301 /* For each registered LM85, we need to keep some data in memory. That
 302    data is pointed to by lm85_list[NR]->data. The structure itself is
 303    dynamically allocated, at the same time when a new lm85 client is
 304    allocated. */
 305
 306 /* LM85 can automatically adjust fan speeds based on temperature
 307  * This structure encapsulates an entire Zone config.  There are
 308  * three zones (one for each temperature input) on the lm85
 309  */
 310 struct lm85_zone {
 311         s8 limit;       /* Low temp limit */
 312         u8 hyst;        /* Low limit hysteresis. (0-15) */
 313         u8 range;       /* Temp range, encoded */
 314         s8 critical;    /* "All fans ON" temp limit */
 315         u8 off_desired; /* Actual "off" temperature specified.  Preserved
 316                          * to prevent "drift" as other autofan control
 317                          * values change.
 318                          */
 319         u8 max_desired; /* Actual "max" temperature specified.  Preserved
 320                          * to prevent "drift" as other autofan control
 321                          * values change.
 322                          */
 323 };
 324
 325 struct lm85_autofan {
 326         u8 config;      /* Register value */
 327         u8 freq;        /* PWM frequency, encoded */
 328         u8 min_pwm;     /* Minimum PWM value, encoded */
 329         u8 min_off;     /* Min PWM or OFF below "limit", flag */
 330 };
 331
 332 struct lm85_data {
 333         struct i2c_client client;
 334         struct class_device *class_dev;
 335         struct mutex lock;
 336         enum chips type;
 337
 338         struct mutex update_lock;
 339         int valid;              /* !=0 if following fields are valid */
 340         unsigned long last_reading;     /* In jiffies */
 341         unsigned long last_config;      /* In jiffies */
 342
 343         u8 in[8];               /* Register value */
 344         u8 in_max[8];           /* Register value */
 345         u8 in_min[8];           /* Register value */
 346         s8 temp[3];             /* Register value */
 347         s8 temp_min[3];         /* Register value */
 348         s8 temp_max[3];         /* Register value */
 349         s8 temp_offset[3];      /* Register value */
 350         u16 fan[4];             /* Register value */
 351         u16 fan_min[4];         /* Register value */
 352         u8 pwm[3];              /* Register value */
 353         u8 spinup_ctl;          /* Register encoding, combined */
 354         u8 tach_mode;           /* Register encoding, combined */
 355         u8 temp_ext[3];         /* Decoded values */
 356         u8 in_ext[8];           /* Decoded values */
 357         u8 adc_scale;           /* ADC Extended bits scaling factor */
 358         u8 fan_ppr;             /* Register value */
 359         u8 smooth[3];           /* Register encoding */
 360         u8 vid;                 /* Register value */
 361         u8 vrm;                 /* VRM version */
 362         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
 363         u8 oppoint[3];          /* Register value */
 364         u16 tmin_ctl;           /* Register value */
 365         unsigned long therm_total; /* Cummulative therm count */
 366         u8 therm_limit;         /* Register value */
 367         u32 alarms;             /* Register encoding, combined */
 368         struct lm85_autofan autofan[3];
 369         struct lm85_zone zone[3];
 370 };
 371
 372 static int lm85_attach_adapter(struct i2c_adapter *adapter);
 373 static int lm85_detect(struct i2c_adapter *adapter, int address,
 374                         int kind);
 375 static int lm85_detach_client(struct i2c_client *client);
 376
 377 static int lm85_read_value(struct i2c_client *client, u8 reg);
 378 static int lm85_write_value(struct i2c_client *client, u8 reg, int value);
 379 static struct lm85_data *lm85_update_device(struct device *dev);
 380 static void lm85_init_client(struct i2c_client *client);
 381
 382
 383 static struct i2c_driver lm85_driver = {
 384         .driver = {
 385                 .name   = "lm85",
 386         },
 387         .id             = I2C_DRIVERID_LM85,
 388         .attach_adapter = lm85_attach_adapter,
 389         .detach_client  = lm85_detach_client,
 390 };
 391
 392
 393 /* 4 Fans */
 394 static ssize_t show_fan(struct device *dev, char *buf, int nr)
 395 {
 396         struct lm85_data *data = lm85_update_device(dev);
 397         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
 398 }
 399 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
 400 {
 401         struct lm85_data *data = lm85_update_device(dev);
 402         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
 403 }
 404 static ssize_t set_fan_min(struct device *dev, const char *buf,
 405                 size_t count, int nr)
 406 {
 407         struct i2c_client *client = to_i2c_client(dev);
 408         struct lm85_data *data = i2c_get_clientdata(client);
 409         long val = simple_strtol(buf, NULL, 10);
 410
 411         mutex_lock(&data->update_lock);
 412         data->fan_min[nr] = FAN_TO_REG(val);
 413         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
 414         mutex_unlock(&data->update_lock);
 415         return count;
 416 }
 417
 418 #define show_fan_offset(offset)                                         \
 419 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 420 {                                                                       \
 421         return show_fan(dev, buf, offset - 1);                          \
 422 }                                                                       \
 423 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
 424 {                                                                       \
 425         return show_fan_min(dev, buf, offset - 1);                      \
 426 }                                                                       \
 427 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
 428         const char *buf, size_t count)                                  \
 429 {                                                                       \
 430         return set_fan_min(dev, buf, count, offset - 1);                \
 431 }                                                                       \
 432 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
 433                 NULL);                                                  \
 434 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
 435                 show_fan_##offset##_min, set_fan_##offset##_min);
 436
 437 show_fan_offset(1);
 438 show_fan_offset(2);
 439 show_fan_offset(3);
 440 show_fan_offset(4);
 441
 442 /* vid, vrm, alarms */
 443
 444 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 445 {
 446         struct lm85_data *data = lm85_update_device(dev);
 447         int vid;
 448
 449         if (data->type == adt7463 && (data->vid & 0x80)) {
 450                 /* 6-pin VID (VRM 10) */
 451                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
 452         } else {
 453                 /* 5-pin VID (VRM 9) */
 454                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
 455         }
 456
 457         return sprintf(buf, "%d\n", vid);
 458 }
 459
 460 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 461
 462 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 463 {
 464         struct lm85_data *data = lm85_update_device(dev);
 465         return sprintf(buf, "%ld\n", (long) data->vrm);
 466 }
 467
 468 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 469 {
 470         struct i2c_client *client = to_i2c_client(dev);
 471         struct lm85_data *data = i2c_get_clientdata(client);
 472         u32 val;
 473
 474         val = simple_strtoul(buf, NULL, 10);
 475         data->vrm = val;
 476         return count;
 477 }
 478
 479 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 480
 481 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 482 {
 483         struct lm85_data *data = lm85_update_device(dev);
 484         return sprintf(buf, "%u\n", data->alarms);
 485 }
 486
 487 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 488
 489 /* pwm */
 490
 491 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
 492 {
 493         struct lm85_data *data = lm85_update_device(dev);
 494         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 495 }
 496 static ssize_t set_pwm(struct device *dev, const char *buf,
 497                 size_t count, int nr)
 498 {
 499         struct i2c_client *client = to_i2c_client(dev);
 500         struct lm85_data *data = i2c_get_clientdata(client);
 501         long val = simple_strtol(buf, NULL, 10);
 502
 503         mutex_lock(&data->update_lock);
 504         data->pwm[nr] = PWM_TO_REG(val);
 505         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 506         mutex_unlock(&data->update_lock);
 507         return count;
 508 }
 509 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
 510 {
 511         struct lm85_data *data = lm85_update_device(dev);
 512         int     pwm_zone;
 513
 514         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 515         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 516 }
 517
 518 #define show_pwm_reg(offset)                                            \
 519 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 520 {                                                                       \
 521         return show_pwm(dev, buf, offset - 1);                          \
 522 }                                                                       \
 523 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
 524                                  const char *buf, size_t count)         \
 525 {                                                                       \
 526         return set_pwm(dev, buf, count, offset - 1);                    \
 527 }                                                                       \
 528 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
 529 {                                                                       \
 530         return show_pwm_enable(dev, buf, offset - 1);                   \
 531 }                                                                       \
 532 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
 533                 show_pwm_##offset, set_pwm_##offset);                   \
 534 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
 535                 show_pwm_enable##offset, NULL);
 536
 537 show_pwm_reg(1);
 538 show_pwm_reg(2);
 539 show_pwm_reg(3);
 540
 541 /* Voltages */
 542
 543 static ssize_t show_in(struct device *dev, char *buf, int nr)
 544 {
 545         struct lm85_data *data = lm85_update_device(dev);
 546         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 547                                                      data->in[nr],
 548                                                      data->in_ext[nr],
 549                                                      data->adc_scale) );
 550 }
 551 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
 552 {
 553         struct lm85_data *data = lm85_update_device(dev);
 554         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 555 }
 556 static ssize_t set_in_min(struct device *dev, const char *buf,
 557                 size_t count, int nr)
 558 {
 559         struct i2c_client *client = to_i2c_client(dev);
 560         struct lm85_data *data = i2c_get_clientdata(client);
 561         long val = simple_strtol(buf, NULL, 10);
 562
 563         mutex_lock(&data->update_lock);
 564         data->in_min[nr] = INS_TO_REG(nr, val);
 565         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 566         mutex_unlock(&data->update_lock);
 567         return count;
 568 }
 569 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
 570 {
 571         struct lm85_data *data = lm85_update_device(dev);
 572         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 573 }
 574 static ssize_t set_in_max(struct device *dev, const char *buf,
 575                 size_t count, int nr)
 576 {
 577         struct i2c_client *client = to_i2c_client(dev);
 578         struct lm85_data *data = i2c_get_clientdata(client);
 579         long val = simple_strtol(buf, NULL, 10);
 580
 581         mutex_lock(&data->update_lock);
 582         data->in_max[nr] = INS_TO_REG(nr, val);
 583         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 584         mutex_unlock(&data->update_lock);
 585         return count;
 586 }
 587 #define show_in_reg(offset)                                             \
 588 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
 589 {                                                                       \
 590         return show_in(dev, buf, offset);                               \
 591 }                                                                       \
 592 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
 593 {                                                                       \
 594         return show_in_min(dev, buf, offset);                           \
 595 }                                                                       \
 596 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
 597 {                                                                       \
 598         return show_in_max(dev, buf, offset);                           \
 599 }                                                                       \
 600 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
 601         const char *buf, size_t count)                                  \
 602 {                                                                       \
 603         return set_in_min(dev, buf, count, offset);                     \
 604 }                                                                       \
 605 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
 606         const char *buf, size_t count)                                  \
 607 {                                                                       \
 608         return set_in_max(dev, buf, count, offset);                     \
 609 }                                                                       \
 610 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
 611                 NULL);                                                  \
 612 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
 613                 show_in_##offset##_min, set_in_##offset##_min);         \
 614 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
 615                 show_in_##offset##_max, set_in_##offset##_max);
 616
 617 show_in_reg(0);
 618 show_in_reg(1);
 619 show_in_reg(2);
 620 show_in_reg(3);
 621 show_in_reg(4);
 622
 623 /* Temps */
 624
 625 static ssize_t show_temp(struct device *dev, char *buf, int nr)
 626 {
 627         struct lm85_data *data = lm85_update_device(dev);
 628         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 629                                                     data->temp_ext[nr],
 630                                                     data->adc_scale) );
 631 }
 632 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
 633 {
 634         struct lm85_data *data = lm85_update_device(dev);
 635         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 636 }
 637 static ssize_t set_temp_min(struct device *dev, const char *buf,
 638                 size_t count, int nr)
 639 {
 640         struct i2c_client *client = to_i2c_client(dev);
 641         struct lm85_data *data = i2c_get_clientdata(client);
 642         long val = simple_strtol(buf, NULL, 10);
 643
 644         mutex_lock(&data->update_lock);
 645         data->temp_min[nr] = TEMP_TO_REG(val);
 646         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 647         mutex_unlock(&data->update_lock);
 648         return count;
 649 }
 650 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
 651 {
 652         struct lm85_data *data = lm85_update_device(dev);
 653         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 654 }
 655 static ssize_t set_temp_max(struct device *dev, const char *buf,
 656                 size_t count, int nr)
 657 {
 658         struct i2c_client *client = to_i2c_client(dev);
 659         struct lm85_data *data = i2c_get_clientdata(client);
 660         long val = simple_strtol(buf, NULL, 10);
 661
 662         mutex_lock(&data->update_lock);
 663         data->temp_max[nr] = TEMP_TO_REG(val);
 664         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 665         mutex_unlock(&data->update_lock);
 666         return count;
 667 }
 668 #define show_temp_reg(offset)                                           \
 669 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
 670 {                                                                       \
 671         return show_temp(dev, buf, offset - 1);                         \
 672 }                                                                       \
 673 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
 674 {                                                                       \
 675         return show_temp_min(dev, buf, offset - 1);                     \
 676 }                                                                       \
 677 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
 678 {                                                                       \
 679         return show_temp_max(dev, buf, offset - 1);                     \
 680 }                                                                       \
 681 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
 682         const char *buf, size_t count)                                  \
 683 {                                                                       \
 684         return set_temp_min(dev, buf, count, offset - 1);               \
 685 }                                                                       \
 686 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
 687         const char *buf, size_t count)                                  \
 688 {                                                                       \
 689         return set_temp_max(dev, buf, count, offset - 1);               \
 690 }                                                                       \
 691 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
 692                 NULL);                                                  \
 693 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
 694                 show_temp_##offset##_min, set_temp_##offset##_min);     \
 695 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
 696                 show_temp_##offset##_max, set_temp_##offset##_max);
 697
 698 show_temp_reg(1);
 699 show_temp_reg(2);
 700 show_temp_reg(3);
 701
 702
 703 /* Automatic PWM control */
 704
 705 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
 706 {
 707         struct lm85_data *data = lm85_update_device(dev);
 708         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 709 }
 710 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
 711         size_t count, int nr)
 712 {
 713         struct i2c_client *client = to_i2c_client(dev);
 714         struct lm85_data *data = i2c_get_clientdata(client);
 715         long val = simple_strtol(buf, NULL, 10);
 716
 717         mutex_lock(&data->update_lock);
 718         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 719                 | ZONE_TO_REG(val) ;
 720         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 721                 data->autofan[nr].config);
 722         mutex_unlock(&data->update_lock);
 723         return count;
 724 }
 725 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
 726 {
 727         struct lm85_data *data = lm85_update_device(dev);
 728         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 729 }
 730 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
 731         size_t count, int nr)
 732 {
 733         struct i2c_client *client = to_i2c_client(dev);
 734         struct lm85_data *data = i2c_get_clientdata(client);
 735         long val = simple_strtol(buf, NULL, 10);
 736
 737         mutex_lock(&data->update_lock);
 738         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 739         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 740                 data->autofan[nr].min_pwm);
 741         mutex_unlock(&data->update_lock);
 742         return count;
 743 }
 744 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
 745 {
 746         struct lm85_data *data = lm85_update_device(dev);
 747         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 748 }
 749 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
 750         size_t count, int nr)
 751 {
 752         struct i2c_client *client = to_i2c_client(dev);
 753         struct lm85_data *data = i2c_get_clientdata(client);
 754         long val = simple_strtol(buf, NULL, 10);
 755
 756         mutex_lock(&data->update_lock);
 757         data->autofan[nr].min_off = val;
 758         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 759                 | data->syncpwm3
 760                 | (data->autofan[0].min_off ? 0x20 : 0)
 761                 | (data->autofan[1].min_off ? 0x40 : 0)
 762                 | (data->autofan[2].min_off ? 0x80 : 0)
 763         );
 764         mutex_unlock(&data->update_lock);
 765         return count;
 766 }
 767 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
 768 {
 769         struct lm85_data *data = lm85_update_device(dev);
 770         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 771 }
 772 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
 773                 size_t count, int nr)
 774 {
 775         struct i2c_client *client = to_i2c_client(dev);
 776         struct lm85_data *data = i2c_get_clientdata(client);
 777         long val = simple_strtol(buf, NULL, 10);
 778
 779         mutex_lock(&data->update_lock);
 780         data->autofan[nr].freq = FREQ_TO_REG(val);
 781         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 782                 (data->zone[nr].range << 4)
 783                 | data->autofan[nr].freq
 784         );
 785         mutex_unlock(&data->update_lock);
 786         return count;
 787 }
 788 #define pwm_auto(offset)                                                \
 789 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
 790         char *buf)                                                      \
 791 {                                                                       \
 792         return show_pwm_auto_channels(dev, buf, offset - 1);            \
 793 }                                                                       \
 794 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
 795         const char *buf, size_t count)                                  \
 796 {                                                                       \
 797         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
 798 }                                                                       \
 799 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
 800         char *buf)                                                      \
 801 {                                                                       \
 802         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
 803 }                                                                       \
 804 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
 805         const char *buf, size_t count)                                  \
 806 {                                                                       \
 807         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
 808 }                                                                       \
 809 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
 810         char *buf)                                                      \
 811 {                                                                       \
 812         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
 813 }                                                                       \
 814 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
 815         const char *buf, size_t count)                                  \
 816 {                                                                       \
 817         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
 818 }                                                                       \
 819 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
 820         char *buf)                                                      \
 821 {                                                                       \
 822         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
 823 }                                                                       \
 824 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
 825         const char *buf, size_t count)                                  \
 826 {                                                                       \
 827         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
 828 }                                                                       \
 829 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
 830                 show_pwm##offset##_auto_channels,                       \
 831                 set_pwm##offset##_auto_channels);                       \
 832 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
 833                 show_pwm##offset##_auto_pwm_min,                        \
 834                 set_pwm##offset##_auto_pwm_min);                        \
 835 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
 836                 show_pwm##offset##_auto_pwm_minctl,                     \
 837                 set_pwm##offset##_auto_pwm_minctl);                     \
 838 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
 839                 show_pwm##offset##_auto_pwm_freq,                       \
 840                 set_pwm##offset##_auto_pwm_freq);
 841 pwm_auto(1);
 842 pwm_auto(2);
 843 pwm_auto(3);
 844
 845 /* Temperature settings for automatic PWM control */
 846
 847 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
 848 {
 849         struct lm85_data *data = lm85_update_device(dev);
 850         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 851                 HYST_FROM_REG(data->zone[nr].hyst));
 852 }
 853 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
 854         size_t count, int nr)
 855 {
 856         struct i2c_client *client = to_i2c_client(dev);
 857         struct lm85_data *data = i2c_get_clientdata(client);
 858         int min;
 859         long val = simple_strtol(buf, NULL, 10);
 860
 861         mutex_lock(&data->update_lock);
 862         min = TEMP_FROM_REG(data->zone[nr].limit);
 863         data->zone[nr].off_desired = TEMP_TO_REG(val);
 864         data->zone[nr].hyst = HYST_TO_REG(min - val);
 865         if ( nr == 0 || nr == 1 ) {
 866                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 867                         (data->zone[0].hyst << 4)
 868                         | data->zone[1].hyst
 869                         );
 870         } else {
 871                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 872                         (data->zone[2].hyst << 4)
 873                 );
 874         }
 875         mutex_unlock(&data->update_lock);
 876         return count;
 877 }
 878 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
 879 {
 880         struct lm85_data *data = lm85_update_device(dev);
 881         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 882 }
 883 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
 884         size_t count, int nr)
 885 {
 886         struct i2c_client *client = to_i2c_client(dev);
 887         struct lm85_data *data = i2c_get_clientdata(client);
 888         long val = simple_strtol(buf, NULL, 10);
 889
 890         mutex_lock(&data->update_lock);
 891         data->zone[nr].limit = TEMP_TO_REG(val);
 892         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 893                 data->zone[nr].limit);
 894
 895 /* Update temp_auto_max and temp_auto_range */
 896         data->zone[nr].range = RANGE_TO_REG(
 897                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 898                 TEMP_FROM_REG(data->zone[nr].limit));
 899         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 900                 ((data->zone[nr].range & 0x0f) << 4)
 901                 | (data->autofan[nr].freq & 0x07));
 902
 903 /* Update temp_auto_hyst and temp_auto_off */
 904         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 905                 data->zone[nr].limit) - TEMP_FROM_REG(
 906                 data->zone[nr].off_desired));
 907         if ( nr == 0 || nr == 1 ) {
 908                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 909                         (data->zone[0].hyst << 4)
 910                         | data->zone[1].hyst
 911                         );
 912         } else {
 913                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 914                         (data->zone[2].hyst << 4)
 915                 );
 916         }
 917         mutex_unlock(&data->update_lock);
 918         return count;
 919 }
 920 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
 921 {
 922         struct lm85_data *data = lm85_update_device(dev);
 923         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 924                 RANGE_FROM_REG(data->zone[nr].range));
 925 }
 926 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
 927         size_t count, int nr)
 928 {
 929         struct i2c_client *client = to_i2c_client(dev);
 930         struct lm85_data *data = i2c_get_clientdata(client);
 931         int min;
 932         long val = simple_strtol(buf, NULL, 10);
 933
 934         mutex_lock(&data->update_lock);
 935         min = TEMP_FROM_REG(data->zone[nr].limit);
 936         data->zone[nr].max_desired = TEMP_TO_REG(val);
 937         data->zone[nr].range = RANGE_TO_REG(
 938                 val - min);
 939         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 940                 ((data->zone[nr].range & 0x0f) << 4)
 941                 | (data->autofan[nr].freq & 0x07));
 942         mutex_unlock(&data->update_lock);
 943         return count;
 944 }
 945 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
 946 {
 947         struct lm85_data *data = lm85_update_device(dev);
 948         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 949 }
 950 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
 951                 size_t count, int nr)
 952 {
 953         struct i2c_client *client = to_i2c_client(dev);
 954         struct lm85_data *data = i2c_get_clientdata(client);
 955         long val = simple_strtol(buf, NULL, 10);
 956
 957         mutex_lock(&data->update_lock);
 958         data->zone[nr].critical = TEMP_TO_REG(val);
 959         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 960                 data->zone[nr].critical);
 961         mutex_unlock(&data->update_lock);
 962         return count;
 963 }
 964 #define temp_auto(offset)                                               \
 965 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
 966         char *buf)                                                      \
 967 {                                                                       \
 968         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
 969 }                                                                       \
 970 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
 971         const char *buf, size_t count)                                  \
 972 {                                                                       \
 973         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
 974 }                                                                       \
 975 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
 976         char *buf)                                                      \
 977 {                                                                       \
 978         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
 979 }                                                                       \
 980 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
 981         const char *buf, size_t count)                                  \
 982 {                                                                       \
 983         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
 984 }                                                                       \
 985 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
 986         char *buf)                                                      \
 987 {                                                                       \
 988         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
 989 }                                                                       \
 990 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
 991         const char *buf, size_t count)                                  \
 992 {                                                                       \
 993         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
 994 }                                                                       \
 995 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
 996         char *buf)                                                      \
 997 {                                                                       \
 998         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
 999 }                                                                       \
1000 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
1001         const char *buf, size_t count)                                  \
1002 {                                                                       \
1003         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
1004 }                                                                       \
1005 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
1006                 show_temp##offset##_auto_temp_off,                      \
1007                 set_temp##offset##_auto_temp_off);                      \
1008 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
1009                 show_temp##offset##_auto_temp_min,                      \
1010                 set_temp##offset##_auto_temp_min);                      \
1011 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1012                 show_temp##offset##_auto_temp_max,                      \
1013                 set_temp##offset##_auto_temp_max);                      \
1014 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1015                 show_temp##offset##_auto_temp_crit,                     \
1016                 set_temp##offset##_auto_temp_crit);
1017 temp_auto(1);
1018 temp_auto(2);
1019 temp_auto(3);
1020
1021 static int lm85_attach_adapter(struct i2c_adapter *adapter)
1022 {
1023         if (!(adapter->class & I2C_CLASS_HWMON))
1024                 return 0;
1025         return i2c_probe(adapter, &addr_data, lm85_detect);
1026 }
1027
1028 static struct attribute *lm85_attributes[] = {
1029         &dev_attr_fan1_input.attr,
1030         &dev_attr_fan2_input.attr,
1031         &dev_attr_fan3_input.attr,
1032         &dev_attr_fan4_input.attr,
1033         &dev_attr_fan1_min.attr,
1034         &dev_attr_fan2_min.attr,
1035         &dev_attr_fan3_min.attr,
1036         &dev_attr_fan4_min.attr,
1037         &dev_attr_pwm1.attr,
1038         &dev_attr_pwm2.attr,
1039         &dev_attr_pwm3.attr,
1040         &dev_attr_pwm1_enable.attr,
1041         &dev_attr_pwm2_enable.attr,
1042         &dev_attr_pwm3_enable.attr,
1043         &dev_attr_in0_input.attr,
1044         &dev_attr_in1_input.attr,
1045         &dev_attr_in2_input.attr,
1046         &dev_attr_in3_input.attr,
1047         &dev_attr_in0_min.attr,
1048         &dev_attr_in1_min.attr,
1049         &dev_attr_in2_min.attr,
1050         &dev_attr_in3_min.attr,
1051         &dev_attr_in0_max.attr,
1052         &dev_attr_in1_max.attr,
1053         &dev_attr_in2_max.attr,
1054         &dev_attr_in3_max.attr,
1055         &dev_attr_temp1_input.attr,
1056         &dev_attr_temp2_input.attr,
1057         &dev_attr_temp3_input.attr,
1058         &dev_attr_temp1_min.attr,
1059         &dev_attr_temp2_min.attr,
1060         &dev_attr_temp3_min.attr,
1061         &dev_attr_temp1_max.attr,
1062         &dev_attr_temp2_max.attr,
1063         &dev_attr_temp3_max.attr,
1064         &dev_attr_vrm.attr,
1065         &dev_attr_cpu0_vid.attr,
1066         &dev_attr_alarms.attr,
1067         &dev_attr_pwm1_auto_channels.attr,
1068         &dev_attr_pwm2_auto_channels.attr,
1069         &dev_attr_pwm3_auto_channels.attr,
1070         &dev_attr_pwm1_auto_pwm_min.attr,
1071         &dev_attr_pwm2_auto_pwm_min.attr,
1072         &dev_attr_pwm3_auto_pwm_min.attr,
1073         &dev_attr_pwm1_auto_pwm_minctl.attr,
1074         &dev_attr_pwm2_auto_pwm_minctl.attr,
1075         &dev_attr_pwm3_auto_pwm_minctl.attr,
1076         &dev_attr_pwm1_auto_pwm_freq.attr,
1077         &dev_attr_pwm2_auto_pwm_freq.attr,
1078         &dev_attr_pwm3_auto_pwm_freq.attr,
1079         &dev_attr_temp1_auto_temp_off.attr,
1080         &dev_attr_temp2_auto_temp_off.attr,
1081         &dev_attr_temp3_auto_temp_off.attr,
1082         &dev_attr_temp1_auto_temp_min.attr,
1083         &dev_attr_temp2_auto_temp_min.attr,
1084         &dev_attr_temp3_auto_temp_min.attr,
1085         &dev_attr_temp1_auto_temp_max.attr,
1086         &dev_attr_temp2_auto_temp_max.attr,
1087         &dev_attr_temp3_auto_temp_max.attr,
1088         &dev_attr_temp1_auto_temp_crit.attr,
1089         &dev_attr_temp2_auto_temp_crit.attr,
1090         &dev_attr_temp3_auto_temp_crit.attr,
1091
1092         NULL
1093 };
1094
1095 static const struct attribute_group lm85_group = {
1096         .attrs = lm85_attributes,
1097 };
1098
1099 static struct attribute *lm85_attributes_opt[] = {
1100         &dev_attr_in4_input.attr,
1101         &dev_attr_in4_min.attr,
1102         &dev_attr_in4_max.attr,
1103
1104         NULL
1105 };
1106
1107 static const struct attribute_group lm85_group_opt = {
1108         .attrs = lm85_attributes_opt,
1109 };
1110
1111 static int lm85_detect(struct i2c_adapter *adapter, int address,
1112                 int kind)
1113 {
1114         int company, verstep ;
1115         struct i2c_client *new_client = NULL;
1116         struct lm85_data *data;
1117         int err = 0;
1118         const char *type_name = "";
1119
1120         if (!i2c_check_functionality(adapter,
1121                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1122                 /* We need to be able to do byte I/O */
1123                 goto ERROR0 ;
1124         };
1125
1126         /* OK. For now, we presume we have a valid client. We now create the
1127            client structure, even though we cannot fill it completely yet.
1128            But it allows us to access lm85_{read,write}_value. */
1129
1130         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1131                 err = -ENOMEM;
1132                 goto ERROR0;
1133         }
1134
1135         new_client = &data->client;
1136         i2c_set_clientdata(new_client, data);
1137         new_client->addr = address;
1138         new_client->adapter = adapter;
1139         new_client->driver = &lm85_driver;
1140         new_client->flags = 0;
1141
1142         /* Now, we do the remaining detection. */
1143
1144         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1145         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1146
1147         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1148                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1149                 i2c_adapter_id(new_client->adapter), new_client->addr,
1150                 company, verstep);
1151
1152         /* If auto-detecting, Determine the chip type. */
1153         if (kind <= 0) {
1154                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1155                         i2c_adapter_id(adapter), address );
1156                 if( company == LM85_COMPANY_NATIONAL
1157                     && verstep == LM85_VERSTEP_LM85C ) {
1158                         kind = lm85c ;
1159                 } else if( company == LM85_COMPANY_NATIONAL
1160                     && verstep == LM85_VERSTEP_LM85B ) {
1161                         kind = lm85b ;
1162                 } else if( company == LM85_COMPANY_NATIONAL
1163                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1164                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1165                                 " Defaulting to LM85.\n", verstep);
1166                         kind = any_chip ;
1167                 } else if( company == LM85_COMPANY_ANALOG_DEV
1168                     && verstep == LM85_VERSTEP_ADM1027 ) {
1169                         kind = adm1027 ;
1170                 } else if( company == LM85_COMPANY_ANALOG_DEV
1171                     && (verstep == LM85_VERSTEP_ADT7463
1172                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1173                         kind = adt7463 ;
1174                 } else if( company == LM85_COMPANY_ANALOG_DEV
1175                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1176                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1177                                 " Defaulting to Generic LM85.\n", verstep );
1178                         kind = any_chip ;
1179                 } else if( company == LM85_COMPANY_SMSC
1180                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1181                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1182                         /* Unfortunately, we can't tell a '100 from a '101
1183                          * from the registers.  Since a '101 is a '100
1184                          * in a package with fewer pins and therefore no
1185                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1186                          * inputs read 0, then it's a '101.
1187                          */
1188                         kind = emc6d100 ;
1189                 } else if( company == LM85_COMPANY_SMSC
1190                     && verstep == LM85_VERSTEP_EMC6D102) {
1191                         kind = emc6d102 ;
1192                 } else if( company == LM85_COMPANY_SMSC
1193                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1194                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1195                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1196                             " Defaulting to Generic LM85.\n", verstep );
1197                         kind = any_chip ;
1198                 } else if( kind == any_chip
1199                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1200                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1201                         /* Leave kind as "any_chip" */
1202                 } else {
1203                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1204                         /* Not an LM85 ... */
1205                         if( kind == any_chip ) {  /* User used force=x,y */
1206                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1207                                         " found at %d,0x%02x. Try force_lm85c.\n",
1208                                         i2c_adapter_id(adapter), address );
1209                         }
1210                         err = 0 ;
1211                         goto ERROR1;
1212                 }
1213         }
1214
1215         /* Fill in the chip specific driver values */
1216         if ( kind == any_chip ) {
1217                 type_name = "lm85";
1218         } else if ( kind == lm85b ) {
1219                 type_name = "lm85b";
1220         } else if ( kind == lm85c ) {
1221                 type_name = "lm85c";
1222         } else if ( kind == adm1027 ) {
1223                 type_name = "adm1027";
1224         } else if ( kind == adt7463 ) {
1225                 type_name = "adt7463";
1226         } else if ( kind == emc6d100){
1227                 type_name = "emc6d100";
1228         } else if ( kind == emc6d102 ) {
1229                 type_name = "emc6d102";
1230         }
1231         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1232
1233         /* Fill in the remaining client fields */
1234         data->type = kind;
1235         data->valid = 0;
1236         mutex_init(&data->update_lock);
1237
1238         /* Tell the I2C layer a new client has arrived */
1239         if ((err = i2c_attach_client(new_client)))
1240                 goto ERROR1;
1241
1242         /* Set the VRM version */
1243         data->vrm = vid_which_vrm();
1244
1245         /* Initialize the LM85 chip */
1246         lm85_init_client(new_client);
1247
1248         /* Register sysfs hooks */
1249         if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
1250                 goto ERROR2;
1251
1252         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1253            as a sixth digital VID input rather than an analog input. */
1254         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1255         if (!(kind == adt7463 && (data->vid & 0x80)))
1256                 if ((err = device_create_file(&new_client->dev,
1257                                         &dev_attr_in4_input))
1258                  || (err = device_create_file(&new_client->dev,
1259                                         &dev_attr_in4_min))
1260                  || (err = device_create_file(&new_client->dev,
1261                                         &dev_attr_in4_max)))
1262                         goto ERROR3;
1263
1264         data->class_dev = hwmon_device_register(&new_client->dev);
1265         if (IS_ERR(data->class_dev)) {
1266                 err = PTR_ERR(data->class_dev);
1267                 goto ERROR3;
1268         }
1269
1270         return 0;
1271
1272         /* Error out and cleanup code */
1273     ERROR3:
1274         sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
1275         sysfs_remove_group(&new_client->dev.kobj, &lm85_group_opt);
1276     ERROR2:
1277         i2c_detach_client(new_client);
1278     ERROR1:
1279         kfree(data);
1280     ERROR0:
1281         return err;
1282 }
1283
1284 static int lm85_detach_client(struct i2c_client *client)
1285 {
1286         struct lm85_data *data = i2c_get_clientdata(client);
1287         hwmon_device_unregister(data->class_dev);
1288         sysfs_remove_group(&client->dev.kobj, &lm85_group);
1289         sysfs_remove_group(&client->dev.kobj, &lm85_group_opt);
1290         i2c_detach_client(client);
1291         kfree(data);
1292         return 0;
1293 }
1294
1295
1296 static int lm85_read_value(struct i2c_client *client, u8 reg)
1297 {
1298         int res;
1299
1300         /* What size location is it? */
1301         switch( reg ) {
1302         case LM85_REG_FAN(0) :  /* Read WORD data */
1303         case LM85_REG_FAN(1) :
1304         case LM85_REG_FAN(2) :
1305         case LM85_REG_FAN(3) :
1306         case LM85_REG_FAN_MIN(0) :
1307         case LM85_REG_FAN_MIN(1) :
1308         case LM85_REG_FAN_MIN(2) :
1309         case LM85_REG_FAN_MIN(3) :
1310         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1311                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1312                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1313                 break ;
1314         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1315                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1316                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1317                 break ;
1318         default:        /* Read BYTE data */
1319                 res = i2c_smbus_read_byte_data(client, reg);
1320                 break ;
1321         }
1322
1323         return res ;
1324 }
1325
1326 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1327 {
1328         int res ;
1329
1330         switch( reg ) {
1331         case LM85_REG_FAN(0) :  /* Write WORD data */
1332         case LM85_REG_FAN(1) :
1333         case LM85_REG_FAN(2) :
1334         case LM85_REG_FAN(3) :
1335         case LM85_REG_FAN_MIN(0) :
1336         case LM85_REG_FAN_MIN(1) :
1337         case LM85_REG_FAN_MIN(2) :
1338         case LM85_REG_FAN_MIN(3) :
1339         /* NOTE: ALARM is read only, so not included here */
1340                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1341                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1342                 break ;
1343         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1344                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1345                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1346                 break ;
1347         default:        /* Write BYTE data */
1348                 res = i2c_smbus_write_byte_data(client, reg, value);
1349                 break ;
1350         }
1351
1352         return res ;
1353 }
1354
1355 static void lm85_init_client(struct i2c_client *client)
1356 {
1357         int value;
1358         struct lm85_data *data = i2c_get_clientdata(client);
1359
1360         dev_dbg(&client->dev, "Initializing device\n");
1361
1362         /* Warn if part was not "READY" */
1363         value = lm85_read_value(client, LM85_REG_CONFIG);
1364         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1365         if( value & 0x02 ) {
1366                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1367                             i2c_adapter_id(client->adapter), client->addr );
1368         };
1369         if( ! (value & 0x04) ) {
1370                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1371                             i2c_adapter_id(client->adapter), client->addr );
1372         };
1373         if( value & 0x10
1374             && ( data->type == adm1027
1375                 || data->type == adt7463 ) ) {
1376                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1377                         "Please report this to the lm85 maintainer.\n",
1378                             i2c_adapter_id(client->adapter), client->addr );
1379         };
1380
1381         /* WE INTENTIONALLY make no changes to the limits,
1382          *   offsets, pwms, fans and zones.  If they were
1383          *   configured, we don't want to mess with them.
1384          *   If they weren't, the default is 100% PWM, no
1385          *   control and will suffice until 'sensors -s'
1386          *   can be run by the user.
1387          */
1388
1389         /* Start monitoring */
1390         value = lm85_read_value(client, LM85_REG_CONFIG);
1391         /* Try to clear LOCK, Set START, save everything else */
1392         value = (value & ~ 0x02) | 0x01 ;
1393         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1394         lm85_write_value(client, LM85_REG_CONFIG, value);
1395 }
1396
1397 static struct lm85_data *lm85_update_device(struct device *dev)
1398 {
1399         struct i2c_client *client = to_i2c_client(dev);
1400         struct lm85_data *data = i2c_get_clientdata(client);
1401         int i;
1402
1403         mutex_lock(&data->update_lock);
1404
1405         if ( !data->valid ||
1406              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1407                 /* Things that change quickly */
1408                 dev_dbg(&client->dev, "Reading sensor values\n");
1409
1410                 /* Have to read extended bits first to "freeze" the
1411                  * more significant bits that are read later.
1412                  */
1413                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1414                         int ext1 = lm85_read_value(client,
1415                                                    ADM1027_REG_EXTEND_ADC1);
1416                         int ext2 =  lm85_read_value(client,
1417                                                     ADM1027_REG_EXTEND_ADC2);
1418                         int val = (ext1 << 8) + ext2;
1419
1420                         for(i = 0; i <= 4; i++)
1421                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1422
1423                         for(i = 0; i <= 2; i++)
1424                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1425                 }
1426
1427                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1428                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1429                    other chips ext is always 0 and the value of scale is
1430                    irrelevant. So it is left in 4*/
1431                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1432
1433                 data->vid = lm85_read_value(client, LM85_REG_VID);
1434
1435                 for (i = 0; i <= 3; ++i) {
1436                         data->in[i] =
1437                             lm85_read_value(client, LM85_REG_IN(i));
1438                 }
1439
1440                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1441                         data->in[4] = lm85_read_value(client,
1442                                       LM85_REG_IN(4));
1443                 }
1444
1445                 for (i = 0; i <= 3; ++i) {
1446                         data->fan[i] =
1447                             lm85_read_value(client, LM85_REG_FAN(i));
1448                 }
1449
1450                 for (i = 0; i <= 2; ++i) {
1451                         data->temp[i] =
1452                             lm85_read_value(client, LM85_REG_TEMP(i));
1453                 }
1454
1455                 for (i = 0; i <= 2; ++i) {
1456                         data->pwm[i] =
1457                             lm85_read_value(client, LM85_REG_PWM(i));
1458                 }
1459
1460                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1461
1462                 if ( data->type == adt7463 ) {
1463                         if( data->therm_total < ULONG_MAX - 256 ) {
1464                             data->therm_total +=
1465                                 lm85_read_value(client, ADT7463_REG_THERM );
1466                         }
1467                 } else if ( data->type == emc6d100 ) {
1468                         /* Three more voltage sensors */
1469                         for (i = 5; i <= 7; ++i) {
1470                                 data->in[i] =
1471                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1472                         }
1473                         /* More alarm bits */
1474                         data->alarms |=
1475                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1476                 } else if (data->type == emc6d102 ) {
1477                         /* Have to read LSB bits after the MSB ones because
1478                            the reading of the MSB bits has frozen the
1479                            LSBs (backward from the ADM1027).
1480                          */
1481                         int ext1 = lm85_read_value(client,
1482                                                    EMC6D102_REG_EXTEND_ADC1);
1483                         int ext2 = lm85_read_value(client,
1484                                                    EMC6D102_REG_EXTEND_ADC2);
1485                         int ext3 = lm85_read_value(client,
1486                                                    EMC6D102_REG_EXTEND_ADC3);
1487                         int ext4 = lm85_read_value(client,
1488                                                    EMC6D102_REG_EXTEND_ADC4);
1489                         data->in_ext[0] = ext3 & 0x0f;
1490                         data->in_ext[1] = ext4 & 0x0f;
1491                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1492                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1493                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1494
1495                         data->temp_ext[0] = ext1 & 0x0f;
1496                         data->temp_ext[1] = ext2 & 0x0f;
1497                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1498                 }
1499
1500                 data->last_reading = jiffies ;
1501         };  /* last_reading */
1502
1503         if ( !data->valid ||
1504              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1505                 /* Things that don't change often */
1506                 dev_dbg(&client->dev, "Reading config values\n");
1507
1508                 for (i = 0; i <= 3; ++i) {
1509                         data->in_min[i] =
1510                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1511                         data->in_max[i] =
1512                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1513                 }
1514
1515                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1516                         data->in_min[4] = lm85_read_value(client,
1517                                           LM85_REG_IN_MIN(4));
1518                         data->in_max[4] = lm85_read_value(client,
1519                                           LM85_REG_IN_MAX(4));
1520                 }
1521
1522                 if ( data->type == emc6d100 ) {
1523                         for (i = 5; i <= 7; ++i) {
1524                                 data->in_min[i] =
1525                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1526                                 data->in_max[i] =
1527                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1528                         }
1529                 }
1530
1531                 for (i = 0; i <= 3; ++i) {
1532                         data->fan_min[i] =
1533                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1534                 }
1535
1536                 for (i = 0; i <= 2; ++i) {
1537                         data->temp_min[i] =
1538                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1539                         data->temp_max[i] =
1540                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1541                 }
1542
1543                 for (i = 0; i <= 2; ++i) {
1544                         int val ;
1545                         data->autofan[i].config =
1546                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1547                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1548                         data->autofan[i].freq = val & 0x07 ;
1549                         data->zone[i].range = (val >> 4) & 0x0f ;
1550                         data->autofan[i].min_pwm =
1551                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1552                         data->zone[i].limit =
1553                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1554                         data->zone[i].critical =
1555                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1556                 }
1557
1558                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1559                 data->smooth[0] = i & 0x0f ;
1560                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1561                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1562                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1563                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1564                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1565                 data->smooth[1] = (i>>4) & 0x0f ;
1566                 data->smooth[2] = i & 0x0f ;
1567
1568                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1569                 data->zone[0].hyst = (i>>4) & 0x0f ;
1570                 data->zone[1].hyst = i & 0x0f ;
1571
1572                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1573                 data->zone[2].hyst = (i>>4) & 0x0f ;
1574
1575                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1576                         data->tach_mode = lm85_read_value(client,
1577                                 LM85_REG_TACH_MODE );
1578                         data->spinup_ctl = lm85_read_value(client,
1579                                 LM85_REG_SPINUP_CTL );
1580                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1581                         if ( data->type == adt7463 ) {
1582                                 for (i = 0; i <= 2; ++i) {
1583                                     data->oppoint[i] = lm85_read_value(client,
1584                                         ADT7463_REG_OPPOINT(i) );
1585                                 }
1586                                 data->tmin_ctl = lm85_read_value(client,
1587                                         ADT7463_REG_TMIN_CTL1 );
1588                                 data->therm_limit = lm85_read_value(client,
1589                                         ADT7463_REG_THERM_LIMIT );
1590                         }
1591                         for (i = 0; i <= 2; ++i) {
1592                             data->temp_offset[i] = lm85_read_value(client,
1593                                 ADM1027_REG_TEMP_OFFSET(i) );
1594                         }
1595                         data->tach_mode = lm85_read_value(client,
1596                                 ADM1027_REG_CONFIG3 );
1597                         data->fan_ppr = lm85_read_value(client,
1598                                 ADM1027_REG_FAN_PPR );
1599                 }
1600
1601                 data->last_config = jiffies;
1602         };  /* last_config */
1603
1604         data->valid = 1;
1605
1606         mutex_unlock(&data->update_lock);
1607
1608         return data;
1609 }
1610
1611
1612 static int __init sm_lm85_init(void)
1613 {
1614         return i2c_add_driver(&lm85_driver);
1615 }
1616
1617 static void  __exit sm_lm85_exit(void)
1618 {
1619         i2c_del_driver(&lm85_driver);
1620 }
1621
1622 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1623  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1624  *     post 2.7.0 CVS changes.
1625  */
1626 MODULE_LICENSE("GPL");
1627 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1628 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1629
1630 module_init(sm_lm85_init);
1631 module_exit(sm_lm85_exit);