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   1 /*
   2     lm85.c - Part of lm_sensors, Linux kernel modules for hardware
   3              monitoring
   4     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
   5     Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
   6     Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
   7     Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
   8
   9     Chip details at           <http://www.national.com/ds/LM/LM85.pdf>
  10
  11     This program is free software; you can redistribute it and/or modify
  12     it under the terms of the GNU General Public License as published by
  13     the Free Software Foundation; either version 2 of the License, or
  14     (at your option) any later version.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with this program; if not, write to the Free Software
  23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/jiffies.h>
  30 #include <linux/i2c.h>
  31 #include <linux/i2c-sensor.h>
  32 #include <linux/i2c-vid.h>
  33 #include <linux/hwmon.h>
  34 #include <linux/err.h>
  35
  36 /* Addresses to scan */
  37 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
  38
  39 /* Insmod parameters */
  40 SENSORS_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
  41
  42 /* The LM85 registers */
  43
  44 #define LM85_REG_IN(nr)                 (0x20 + (nr))
  45 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
  46 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
  47
  48 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
  49 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
  50 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
  51
  52 /* Fan speeds are LSB, MSB (2 bytes) */
  53 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
  54 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
  55
  56 #define LM85_REG_PWM(nr)                (0x30 + (nr))
  57
  58 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
  59
  60 #define ADT7463_REG_TMIN_CTL1           0x36
  61 #define ADT7463_REG_TMIN_CTL2           0x37
  62
  63 #define LM85_REG_DEVICE                 0x3d
  64 #define LM85_REG_COMPANY                0x3e
  65 #define LM85_REG_VERSTEP                0x3f
  66 /* These are the recognized values for the above regs */
  67 #define LM85_DEVICE_ADX                 0x27
  68 #define LM85_COMPANY_NATIONAL           0x01
  69 #define LM85_COMPANY_ANALOG_DEV         0x41
  70 #define LM85_COMPANY_SMSC               0x5c
  71 #define LM85_VERSTEP_VMASK              0xf0
  72 #define LM85_VERSTEP_GENERIC            0x60
  73 #define LM85_VERSTEP_LM85C              0x60
  74 #define LM85_VERSTEP_LM85B              0x62
  75 #define LM85_VERSTEP_ADM1027            0x60
  76 #define LM85_VERSTEP_ADT7463            0x62
  77 #define LM85_VERSTEP_ADT7463C           0x6A
  78 #define LM85_VERSTEP_EMC6D100_A0        0x60
  79 #define LM85_VERSTEP_EMC6D100_A1        0x61
  80 #define LM85_VERSTEP_EMC6D102           0x65
  81
  82 #define LM85_REG_CONFIG                 0x40
  83
  84 #define LM85_REG_ALARM1                 0x41
  85 #define LM85_REG_ALARM2                 0x42
  86
  87 #define LM85_REG_VID                    0x43
  88
  89 /* Automated FAN control */
  90 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
  91 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
  92 #define LM85_REG_AFAN_SPIKE1            0x62
  93 #define LM85_REG_AFAN_SPIKE2            0x63
  94 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
  95 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
  96 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
  97 #define LM85_REG_AFAN_HYST1             0x6d
  98 #define LM85_REG_AFAN_HYST2             0x6e
  99
 100 #define LM85_REG_TACH_MODE              0x74
 101 #define LM85_REG_SPINUP_CTL             0x75
 102
 103 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
 104 #define ADM1027_REG_CONFIG2             0x73
 105 #define ADM1027_REG_INTMASK1            0x74
 106 #define ADM1027_REG_INTMASK2            0x75
 107 #define ADM1027_REG_EXTEND_ADC1         0x76
 108 #define ADM1027_REG_EXTEND_ADC2         0x77
 109 #define ADM1027_REG_CONFIG3             0x78
 110 #define ADM1027_REG_FAN_PPR             0x7b
 111
 112 #define ADT7463_REG_THERM               0x79
 113 #define ADT7463_REG_THERM_LIMIT         0x7A
 114
 115 #define EMC6D100_REG_ALARM3             0x7d
 116 /* IN5, IN6 and IN7 */
 117 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
 118 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
 119 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
 120 #define EMC6D102_REG_EXTEND_ADC1        0x85
 121 #define EMC6D102_REG_EXTEND_ADC2        0x86
 122 #define EMC6D102_REG_EXTEND_ADC3        0x87
 123 #define EMC6D102_REG_EXTEND_ADC4        0x88
 124
 125 #define LM85_ALARM_IN0                  0x0001
 126 #define LM85_ALARM_IN1                  0x0002
 127 #define LM85_ALARM_IN2                  0x0004
 128 #define LM85_ALARM_IN3                  0x0008
 129 #define LM85_ALARM_TEMP1                0x0010
 130 #define LM85_ALARM_TEMP2                0x0020
 131 #define LM85_ALARM_TEMP3                0x0040
 132 #define LM85_ALARM_ALARM2               0x0080
 133 #define LM85_ALARM_IN4                  0x0100
 134 #define LM85_ALARM_RESERVED             0x0200
 135 #define LM85_ALARM_FAN1                 0x0400
 136 #define LM85_ALARM_FAN2                 0x0800
 137 #define LM85_ALARM_FAN3                 0x1000
 138 #define LM85_ALARM_FAN4                 0x2000
 139 #define LM85_ALARM_TEMP1_FAULT          0x4000
 140 #define LM85_ALARM_TEMP3_FAULT          0x8000
 141
 142
 143 /* Conversions. Rounding and limit checking is only done on the TO_REG
 144    variants. Note that you should be a bit careful with which arguments
 145    these macros are called: arguments may be evaluated more than once.
 146  */
 147
 148 /* IN are scaled acording to built-in resistors */
 149 static int lm85_scaling[] = {  /* .001 Volts */
 150                 2500, 2250, 3300, 5000, 12000,
 151                 3300, 1500, 1800 /*EMC6D100*/
 152         };
 153 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
 154
 155 #define INS_TO_REG(n,val)       \
 156                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
 157
 158 #define INSEXT_FROM_REG(n,val,ext,scale)        \
 159                 SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n])
 160
 161 #define INS_FROM_REG(n,val)   INSEXT_FROM_REG(n,val,0,1)
 162
 163 /* FAN speed is measured using 90kHz clock */
 164 #define FAN_TO_REG(val)         (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
 165 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
 166
 167 /* Temperature is reported in .001 degC increments */
 168 #define TEMP_TO_REG(val)        \
 169                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
 170 #define TEMPEXT_FROM_REG(val,ext,scale) \
 171                 SCALE((val)*scale + (ext),scale,1000)
 172 #define TEMP_FROM_REG(val)      \
 173                 TEMPEXT_FROM_REG(val,0,1)
 174
 175 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
 176 #define PWM_FROM_REG(val)               (val)
 177
 178
 179 /* ZONEs have the following parameters:
 180  *    Limit (low) temp,           1. degC
 181  *    Hysteresis (below limit),   1. degC (0-15)
 182  *    Range of speed control,     .1 degC (2-80)
 183  *    Critical (high) temp,       1. degC
 184  *
 185  * FAN PWMs have the following parameters:
 186  *    Reference Zone,                 1, 2, 3, etc.
 187  *    Spinup time,                    .05 sec
 188  *    PWM value at limit/low temp,    1 count
 189  *    PWM Frequency,                  1. Hz
 190  *    PWM is Min or OFF below limit,  flag
 191  *    Invert PWM output,              flag
 192  *
 193  * Some chips filter the temp, others the fan.
 194  *    Filter constant (or disabled)   .1 seconds
 195  */
 196
 197 /* These are the zone temperature range encodings in .001 degree C */
 198 static int lm85_range_map[] = {
 199                 2000,  2500,  3300,  4000,  5000,  6600,
 200                 8000, 10000, 13300, 16000, 20000, 26600,
 201                 32000, 40000, 53300, 80000
 202         };
 203 static int RANGE_TO_REG( int range )
 204 {
 205         int i;
 206
 207         if ( range < lm85_range_map[0] ) {
 208                 return 0 ;
 209         } else if ( range > lm85_range_map[15] ) {
 210                 return 15 ;
 211         } else {  /* find closest match */
 212                 for ( i = 14 ; i >= 0 ; --i ) {
 213                         if ( range > lm85_range_map[i] ) { /* range bracketed */
 214                                 if ((lm85_range_map[i+1] - range) <
 215                                         (range - lm85_range_map[i])) {
 216                                         i++;
 217                                         break;
 218                                 }
 219                                 break;
 220                         }
 221                 }
 222         }
 223         return( i & 0x0f );
 224 }
 225 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
 226
 227 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
 228  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
 229  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
 230  *       is ignored, or set to 0.
 231  */
 232 /* These are the PWM frequency encodings */
 233 static int lm85_freq_map[] = { /* .1 Hz */
 234                 100, 150, 230, 300, 380, 470, 620, 940
 235         };
 236 static int FREQ_TO_REG( int freq )
 237 {
 238         int i;
 239
 240         if( freq >= lm85_freq_map[7] ) { return 7 ; }
 241         for( i = 0 ; i < 7 ; ++i )
 242                 if( freq <= lm85_freq_map[i] )
 243                         break ;
 244         return( i & 0x07 );
 245 }
 246 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
 247
 248 /* Since we can't use strings, I'm abusing these numbers
 249  *   to stand in for the following meanings:
 250  *      1 -- PWM responds to Zone 1
 251  *      2 -- PWM responds to Zone 2
 252  *      3 -- PWM responds to Zone 3
 253  *     23 -- PWM responds to the higher temp of Zone 2 or 3
 254  *    123 -- PWM responds to highest of Zone 1, 2, or 3
 255  *      0 -- PWM is always at 0% (ie, off)
 256  *     -1 -- PWM is always at 100%
 257  *     -2 -- PWM responds to manual control
 258  */
 259
 260 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
 261 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
 262
 263 static int ZONE_TO_REG( int zone )
 264 {
 265         int i;
 266
 267         for( i = 0 ; i <= 7 ; ++i )
 268                 if( zone == lm85_zone_map[i] )
 269                         break ;
 270         if( i > 7 )   /* Not found. */
 271                 i = 3;  /* Always 100% */
 272         return( (i & 0x07)<<5 );
 273 }
 274
 275 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
 276 #define HYST_FROM_REG(val) ((val)*1000)
 277
 278 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
 279 #define OFFSET_FROM_REG(val) ((val)*25)
 280
 281 #define PPR_MASK(fan) (0x03<<(fan *2))
 282 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
 283 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
 284
 285 /* 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 semaphore lock;
 336         enum chips type;
 337
 338         struct semaphore update_lock;
 339         int valid;              /* !=0 if following fields are valid */
 340         unsigned long last_reading;     /* In jiffies */
 341         unsigned long last_config;      /* In jiffies */
 342
 343         u8 in[8];               /* Register value */
 344         u8 in_max[8];           /* Register value */
 345         u8 in_min[8];           /* Register value */
 346         s8 temp[3];             /* Register value */
 347         s8 temp_min[3];         /* Register value */
 348         s8 temp_max[3];         /* Register value */
 349         s8 temp_offset[3];      /* Register value */
 350         u16 fan[4];             /* Register value */
 351         u16 fan_min[4];         /* Register value */
 352         u8 pwm[3];              /* Register value */
 353         u8 spinup_ctl;          /* Register encoding, combined */
 354         u8 tach_mode;           /* Register encoding, combined */
 355         u8 temp_ext[3];         /* Decoded values */
 356         u8 in_ext[8];           /* Decoded values */
 357         u8 adc_scale;           /* ADC Extended bits scaling factor */
 358         u8 fan_ppr;             /* Register value */
 359         u8 smooth[3];           /* Register encoding */
 360         u8 vid;                 /* Register value */
 361         u8 vrm;                 /* VRM version */
 362         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
 363         u8 oppoint[3];          /* Register value */
 364         u16 tmin_ctl;           /* Register value */
 365         unsigned long therm_total; /* Cummulative therm count */
 366         u8 therm_limit;         /* Register value */
 367         u32 alarms;             /* Register encoding, combined */
 368         struct lm85_autofan autofan[3];
 369         struct lm85_zone zone[3];
 370 };
 371
 372 static int lm85_attach_adapter(struct i2c_adapter *adapter);
 373 static int lm85_detect(struct i2c_adapter *adapter, int address,
 374                         int kind);
 375 static int lm85_detach_client(struct i2c_client *client);
 376
 377 static int lm85_read_value(struct i2c_client *client, u8 register);
 378 static int lm85_write_value(struct i2c_client *client, u8 register, int value);
 379 static struct lm85_data *lm85_update_device(struct device *dev);
 380 static void lm85_init_client(struct i2c_client *client);
 381
 382
 383 static struct i2c_driver lm85_driver = {
 384         .owner          = THIS_MODULE,
 385         .name           = "lm85",
 386         .id             = I2C_DRIVERID_LM85,
 387         .flags          = I2C_DF_NOTIFY,
 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         down(&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         up(&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         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 448 }
 449
 450 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 451
 452 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 453 {
 454         struct lm85_data *data = lm85_update_device(dev);
 455         return sprintf(buf, "%ld\n", (long) data->vrm);
 456 }
 457
 458 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 459 {
 460         struct i2c_client *client = to_i2c_client(dev);
 461         struct lm85_data *data = i2c_get_clientdata(client);
 462         u32 val;
 463
 464         val = simple_strtoul(buf, NULL, 10);
 465         data->vrm = val;
 466         return count;
 467 }
 468
 469 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 470
 471 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 472 {
 473         struct lm85_data *data = lm85_update_device(dev);
 474         return sprintf(buf, "%u\n", data->alarms);
 475 }
 476
 477 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 478
 479 /* pwm */
 480
 481 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
 482 {
 483         struct lm85_data *data = lm85_update_device(dev);
 484         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 485 }
 486 static ssize_t set_pwm(struct device *dev, const char *buf,
 487                 size_t count, int nr)
 488 {
 489         struct i2c_client *client = to_i2c_client(dev);
 490         struct lm85_data *data = i2c_get_clientdata(client);
 491         long val = simple_strtol(buf, NULL, 10);
 492
 493         down(&data->update_lock);
 494         data->pwm[nr] = PWM_TO_REG(val);
 495         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 496         up(&data->update_lock);
 497         return count;
 498 }
 499 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
 500 {
 501         struct lm85_data *data = lm85_update_device(dev);
 502         int     pwm_zone;
 503
 504         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 505         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 506 }
 507
 508 #define show_pwm_reg(offset)                                            \
 509 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 510 {                                                                       \
 511         return show_pwm(dev, buf, offset - 1);                          \
 512 }                                                                       \
 513 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
 514                                  const char *buf, size_t count)         \
 515 {                                                                       \
 516         return set_pwm(dev, buf, count, offset - 1);                    \
 517 }                                                                       \
 518 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
 519 {                                                                       \
 520         return show_pwm_enable(dev, buf, offset - 1);                   \
 521 }                                                                       \
 522 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
 523                 show_pwm_##offset, set_pwm_##offset);                   \
 524 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
 525                 show_pwm_enable##offset, NULL);
 526
 527 show_pwm_reg(1);
 528 show_pwm_reg(2);
 529 show_pwm_reg(3);
 530
 531 /* Voltages */
 532
 533 static ssize_t show_in(struct device *dev, char *buf, int nr)
 534 {
 535         struct lm85_data *data = lm85_update_device(dev);
 536         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 537                                                      data->in[nr],
 538                                                      data->in_ext[nr],
 539                                                      data->adc_scale) );
 540 }
 541 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
 542 {
 543         struct lm85_data *data = lm85_update_device(dev);
 544         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 545 }
 546 static ssize_t set_in_min(struct device *dev, const char *buf,
 547                 size_t count, int nr)
 548 {
 549         struct i2c_client *client = to_i2c_client(dev);
 550         struct lm85_data *data = i2c_get_clientdata(client);
 551         long val = simple_strtol(buf, NULL, 10);
 552
 553         down(&data->update_lock);
 554         data->in_min[nr] = INS_TO_REG(nr, val);
 555         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 556         up(&data->update_lock);
 557         return count;
 558 }
 559 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
 560 {
 561         struct lm85_data *data = lm85_update_device(dev);
 562         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 563 }
 564 static ssize_t set_in_max(struct device *dev, const char *buf,
 565                 size_t count, int nr)
 566 {
 567         struct i2c_client *client = to_i2c_client(dev);
 568         struct lm85_data *data = i2c_get_clientdata(client);
 569         long val = simple_strtol(buf, NULL, 10);
 570
 571         down(&data->update_lock);
 572         data->in_max[nr] = INS_TO_REG(nr, val);
 573         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 574         up(&data->update_lock);
 575         return count;
 576 }
 577 #define show_in_reg(offset)                                             \
 578 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
 579 {                                                                       \
 580         return show_in(dev, buf, offset);                               \
 581 }                                                                       \
 582 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
 583 {                                                                       \
 584         return show_in_min(dev, buf, offset);                           \
 585 }                                                                       \
 586 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
 587 {                                                                       \
 588         return show_in_max(dev, buf, offset);                           \
 589 }                                                                       \
 590 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
 591         const char *buf, size_t count)                                  \
 592 {                                                                       \
 593         return set_in_min(dev, buf, count, offset);                     \
 594 }                                                                       \
 595 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
 596         const char *buf, size_t count)                                  \
 597 {                                                                       \
 598         return set_in_max(dev, buf, count, offset);                     \
 599 }                                                                       \
 600 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
 601                 NULL);                                                  \
 602 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
 603                 show_in_##offset##_min, set_in_##offset##_min);         \
 604 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
 605                 show_in_##offset##_max, set_in_##offset##_max);
 606
 607 show_in_reg(0);
 608 show_in_reg(1);
 609 show_in_reg(2);
 610 show_in_reg(3);
 611 show_in_reg(4);
 612
 613 /* Temps */
 614
 615 static ssize_t show_temp(struct device *dev, char *buf, int nr)
 616 {
 617         struct lm85_data *data = lm85_update_device(dev);
 618         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 619                                                     data->temp_ext[nr],
 620                                                     data->adc_scale) );
 621 }
 622 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
 623 {
 624         struct lm85_data *data = lm85_update_device(dev);
 625         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 626 }
 627 static ssize_t set_temp_min(struct device *dev, const char *buf,
 628                 size_t count, int nr)
 629 {
 630         struct i2c_client *client = to_i2c_client(dev);
 631         struct lm85_data *data = i2c_get_clientdata(client);
 632         long val = simple_strtol(buf, NULL, 10);
 633
 634         down(&data->update_lock);
 635         data->temp_min[nr] = TEMP_TO_REG(val);
 636         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 637         up(&data->update_lock);
 638         return count;
 639 }
 640 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
 641 {
 642         struct lm85_data *data = lm85_update_device(dev);
 643         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 644 }
 645 static ssize_t set_temp_max(struct device *dev, const char *buf,
 646                 size_t count, int nr)
 647 {
 648         struct i2c_client *client = to_i2c_client(dev);
 649         struct lm85_data *data = i2c_get_clientdata(client);
 650         long val = simple_strtol(buf, NULL, 10);
 651
 652         down(&data->update_lock);
 653         data->temp_max[nr] = TEMP_TO_REG(val);
 654         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 655         up(&data->update_lock);
 656         return count;
 657 }
 658 #define show_temp_reg(offset)                                           \
 659 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
 660 {                                                                       \
 661         return show_temp(dev, buf, offset - 1);                         \
 662 }                                                                       \
 663 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
 664 {                                                                       \
 665         return show_temp_min(dev, buf, offset - 1);                     \
 666 }                                                                       \
 667 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
 668 {                                                                       \
 669         return show_temp_max(dev, buf, offset - 1);                     \
 670 }                                                                       \
 671 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
 672         const char *buf, size_t count)                                  \
 673 {                                                                       \
 674         return set_temp_min(dev, buf, count, offset - 1);               \
 675 }                                                                       \
 676 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
 677         const char *buf, size_t count)                                  \
 678 {                                                                       \
 679         return set_temp_max(dev, buf, count, offset - 1);               \
 680 }                                                                       \
 681 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
 682                 NULL);                                                  \
 683 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
 684                 show_temp_##offset##_min, set_temp_##offset##_min);     \
 685 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
 686                 show_temp_##offset##_max, set_temp_##offset##_max);
 687
 688 show_temp_reg(1);
 689 show_temp_reg(2);
 690 show_temp_reg(3);
 691
 692
 693 /* Automatic PWM control */
 694
 695 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
 696 {
 697         struct lm85_data *data = lm85_update_device(dev);
 698         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 699 }
 700 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
 701         size_t count, int nr)
 702 {
 703         struct i2c_client *client = to_i2c_client(dev);
 704         struct lm85_data *data = i2c_get_clientdata(client);
 705         long val = simple_strtol(buf, NULL, 10);
 706
 707         down(&data->update_lock);
 708         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 709                 | ZONE_TO_REG(val) ;
 710         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 711                 data->autofan[nr].config);
 712         up(&data->update_lock);
 713         return count;
 714 }
 715 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
 716 {
 717         struct lm85_data *data = lm85_update_device(dev);
 718         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 719 }
 720 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
 721         size_t count, int nr)
 722 {
 723         struct i2c_client *client = to_i2c_client(dev);
 724         struct lm85_data *data = i2c_get_clientdata(client);
 725         long val = simple_strtol(buf, NULL, 10);
 726
 727         down(&data->update_lock);
 728         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 729         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 730                 data->autofan[nr].min_pwm);
 731         up(&data->update_lock);
 732         return count;
 733 }
 734 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
 735 {
 736         struct lm85_data *data = lm85_update_device(dev);
 737         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 738 }
 739 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
 740         size_t count, int nr)
 741 {
 742         struct i2c_client *client = to_i2c_client(dev);
 743         struct lm85_data *data = i2c_get_clientdata(client);
 744         long val = simple_strtol(buf, NULL, 10);
 745
 746         down(&data->update_lock);
 747         data->autofan[nr].min_off = val;
 748         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 749                 | data->syncpwm3
 750                 | (data->autofan[0].min_off ? 0x20 : 0)
 751                 | (data->autofan[1].min_off ? 0x40 : 0)
 752                 | (data->autofan[2].min_off ? 0x80 : 0)
 753         );
 754         up(&data->update_lock);
 755         return count;
 756 }
 757 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
 758 {
 759         struct lm85_data *data = lm85_update_device(dev);
 760         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 761 }
 762 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
 763                 size_t count, int nr)
 764 {
 765         struct i2c_client *client = to_i2c_client(dev);
 766         struct lm85_data *data = i2c_get_clientdata(client);
 767         long val = simple_strtol(buf, NULL, 10);
 768
 769         down(&data->update_lock);
 770         data->autofan[nr].freq = FREQ_TO_REG(val);
 771         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 772                 (data->zone[nr].range << 4)
 773                 | data->autofan[nr].freq
 774         );
 775         up(&data->update_lock);
 776         return count;
 777 }
 778 #define pwm_auto(offset)                                                \
 779 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
 780         char *buf)                                                      \
 781 {                                                                       \
 782         return show_pwm_auto_channels(dev, buf, offset - 1);            \
 783 }                                                                       \
 784 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
 785         const char *buf, size_t count)                                  \
 786 {                                                                       \
 787         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
 788 }                                                                       \
 789 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
 790         char *buf)                                                      \
 791 {                                                                       \
 792         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
 793 }                                                                       \
 794 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
 795         const char *buf, size_t count)                                  \
 796 {                                                                       \
 797         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
 798 }                                                                       \
 799 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
 800         char *buf)                                                      \
 801 {                                                                       \
 802         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
 803 }                                                                       \
 804 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
 805         const char *buf, size_t count)                                  \
 806 {                                                                       \
 807         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
 808 }                                                                       \
 809 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
 810         char *buf)                                                      \
 811 {                                                                       \
 812         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
 813 }                                                                       \
 814 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
 815         const char *buf, size_t count)                                  \
 816 {                                                                       \
 817         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
 818 }                                                                       \
 819 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
 820                 show_pwm##offset##_auto_channels,                       \
 821                 set_pwm##offset##_auto_channels);                       \
 822 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
 823                 show_pwm##offset##_auto_pwm_min,                        \
 824                 set_pwm##offset##_auto_pwm_min);                        \
 825 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
 826                 show_pwm##offset##_auto_pwm_minctl,                     \
 827                 set_pwm##offset##_auto_pwm_minctl);                     \
 828 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
 829                 show_pwm##offset##_auto_pwm_freq,                       \
 830                 set_pwm##offset##_auto_pwm_freq);
 831 pwm_auto(1);
 832 pwm_auto(2);
 833 pwm_auto(3);
 834
 835 /* Temperature settings for automatic PWM control */
 836
 837 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
 838 {
 839         struct lm85_data *data = lm85_update_device(dev);
 840         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 841                 HYST_FROM_REG(data->zone[nr].hyst));
 842 }
 843 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
 844         size_t count, int nr)
 845 {
 846         struct i2c_client *client = to_i2c_client(dev);
 847         struct lm85_data *data = i2c_get_clientdata(client);
 848         int min;
 849         long val = simple_strtol(buf, NULL, 10);
 850
 851         down(&data->update_lock);
 852         min = TEMP_FROM_REG(data->zone[nr].limit);
 853         data->zone[nr].off_desired = TEMP_TO_REG(val);
 854         data->zone[nr].hyst = HYST_TO_REG(min - val);
 855         if ( nr == 0 || nr == 1 ) {
 856                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 857                         (data->zone[0].hyst << 4)
 858                         | data->zone[1].hyst
 859                         );
 860         } else {
 861                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 862                         (data->zone[2].hyst << 4)
 863                 );
 864         }
 865         up(&data->update_lock);
 866         return count;
 867 }
 868 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
 869 {
 870         struct lm85_data *data = lm85_update_device(dev);
 871         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 872 }
 873 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
 874         size_t count, int nr)
 875 {
 876         struct i2c_client *client = to_i2c_client(dev);
 877         struct lm85_data *data = i2c_get_clientdata(client);
 878         long val = simple_strtol(buf, NULL, 10);
 879
 880         down(&data->update_lock);
 881         data->zone[nr].limit = TEMP_TO_REG(val);
 882         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 883                 data->zone[nr].limit);
 884
 885 /* Update temp_auto_max and temp_auto_range */
 886         data->zone[nr].range = RANGE_TO_REG(
 887                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 888                 TEMP_FROM_REG(data->zone[nr].limit));
 889         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 890                 ((data->zone[nr].range & 0x0f) << 4)
 891                 | (data->autofan[nr].freq & 0x07));
 892
 893 /* Update temp_auto_hyst and temp_auto_off */
 894         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 895                 data->zone[nr].limit) - TEMP_FROM_REG(
 896                 data->zone[nr].off_desired));
 897         if ( nr == 0 || nr == 1 ) {
 898                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 899                         (data->zone[0].hyst << 4)
 900                         | data->zone[1].hyst
 901                         );
 902         } else {
 903                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 904                         (data->zone[2].hyst << 4)
 905                 );
 906         }
 907         up(&data->update_lock);
 908         return count;
 909 }
 910 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
 911 {
 912         struct lm85_data *data = lm85_update_device(dev);
 913         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 914                 RANGE_FROM_REG(data->zone[nr].range));
 915 }
 916 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
 917         size_t count, int nr)
 918 {
 919         struct i2c_client *client = to_i2c_client(dev);
 920         struct lm85_data *data = i2c_get_clientdata(client);
 921         int min;
 922         long val = simple_strtol(buf, NULL, 10);
 923
 924         down(&data->update_lock);
 925         min = TEMP_FROM_REG(data->zone[nr].limit);
 926         data->zone[nr].max_desired = TEMP_TO_REG(val);
 927         data->zone[nr].range = RANGE_TO_REG(
 928                 val - min);
 929         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 930                 ((data->zone[nr].range & 0x0f) << 4)
 931                 | (data->autofan[nr].freq & 0x07));
 932         up(&data->update_lock);
 933         return count;
 934 }
 935 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
 936 {
 937         struct lm85_data *data = lm85_update_device(dev);
 938         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 939 }
 940 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
 941                 size_t count, int nr)
 942 {
 943         struct i2c_client *client = to_i2c_client(dev);
 944         struct lm85_data *data = i2c_get_clientdata(client);
 945         long val = simple_strtol(buf, NULL, 10);
 946
 947         down(&data->update_lock);
 948         data->zone[nr].critical = TEMP_TO_REG(val);
 949         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 950                 data->zone[nr].critical);
 951         up(&data->update_lock);
 952         return count;
 953 }
 954 #define temp_auto(offset)                                               \
 955 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
 956         char *buf)                                                      \
 957 {                                                                       \
 958         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
 959 }                                                                       \
 960 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
 961         const char *buf, size_t count)                                  \
 962 {                                                                       \
 963         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
 964 }                                                                       \
 965 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
 966         char *buf)                                                      \
 967 {                                                                       \
 968         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
 969 }                                                                       \
 970 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
 971         const char *buf, size_t count)                                  \
 972 {                                                                       \
 973         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
 974 }                                                                       \
 975 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
 976         char *buf)                                                      \
 977 {                                                                       \
 978         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
 979 }                                                                       \
 980 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
 981         const char *buf, size_t count)                                  \
 982 {                                                                       \
 983         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
 984 }                                                                       \
 985 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
 986         char *buf)                                                      \
 987 {                                                                       \
 988         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
 989 }                                                                       \
 990 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
 991         const char *buf, size_t count)                                  \
 992 {                                                                       \
 993         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
 994 }                                                                       \
 995 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
 996                 show_temp##offset##_auto_temp_off,                      \
 997                 set_temp##offset##_auto_temp_off);                      \
 998 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
 999                 show_temp##offset##_auto_temp_min,                      \
1000                 set_temp##offset##_auto_temp_min);                      \
1001 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1002                 show_temp##offset##_auto_temp_max,                      \
1003                 set_temp##offset##_auto_temp_max);                      \
1004 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1005                 show_temp##offset##_auto_temp_crit,                     \
1006                 set_temp##offset##_auto_temp_crit);
1007 temp_auto(1);
1008 temp_auto(2);
1009 temp_auto(3);
1010
1011 int lm85_attach_adapter(struct i2c_adapter *adapter)
1012 {
1013         if (!(adapter->class & I2C_CLASS_HWMON))
1014                 return 0;
1015         return i2c_probe(adapter, &addr_data, lm85_detect);
1016 }
1017
1018 int lm85_detect(struct i2c_adapter *adapter, int address,
1019                 int kind)
1020 {
1021         int company, verstep ;
1022         struct i2c_client *new_client = NULL;
1023         struct lm85_data *data;
1024         int err = 0;
1025         const char *type_name = "";
1026
1027         if (!i2c_check_functionality(adapter,
1028                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1029                 /* We need to be able to do byte I/O */
1030                 goto ERROR0 ;
1031         };
1032
1033         /* OK. For now, we presume we have a valid client. We now create the
1034            client structure, even though we cannot fill it completely yet.
1035            But it allows us to access lm85_{read,write}_value. */
1036
1037         if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1038                 err = -ENOMEM;
1039                 goto ERROR0;
1040         }
1041         memset(data, 0, sizeof(struct lm85_data));
1042
1043         new_client = &data->client;
1044         i2c_set_clientdata(new_client, data);
1045         new_client->addr = address;
1046         new_client->adapter = adapter;
1047         new_client->driver = &lm85_driver;
1048         new_client->flags = 0;
1049
1050         /* Now, we do the remaining detection. */
1051
1052         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1053         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1054
1055         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1056                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1057                 i2c_adapter_id(new_client->adapter), new_client->addr,
1058                 company, verstep);
1059
1060         /* If auto-detecting, Determine the chip type. */
1061         if (kind <= 0) {
1062                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1063                         i2c_adapter_id(adapter), address );
1064                 if( company == LM85_COMPANY_NATIONAL
1065                     && verstep == LM85_VERSTEP_LM85C ) {
1066                         kind = lm85c ;
1067                 } else if( company == LM85_COMPANY_NATIONAL
1068                     && verstep == LM85_VERSTEP_LM85B ) {
1069                         kind = lm85b ;
1070                 } else if( company == LM85_COMPANY_NATIONAL
1071                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1072                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1073                                 " Defaulting to LM85.\n", verstep);
1074                         kind = any_chip ;
1075                 } else if( company == LM85_COMPANY_ANALOG_DEV
1076                     && verstep == LM85_VERSTEP_ADM1027 ) {
1077                         kind = adm1027 ;
1078                 } else if( company == LM85_COMPANY_ANALOG_DEV
1079                     && (verstep == LM85_VERSTEP_ADT7463
1080                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1081                         kind = adt7463 ;
1082                 } else if( company == LM85_COMPANY_ANALOG_DEV
1083                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1084                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1085                                 " Defaulting to Generic LM85.\n", verstep );
1086                         kind = any_chip ;
1087                 } else if( company == LM85_COMPANY_SMSC
1088                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1089                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1090                         /* Unfortunately, we can't tell a '100 from a '101
1091                          * from the registers.  Since a '101 is a '100
1092                          * in a package with fewer pins and therefore no
1093                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1094                          * inputs read 0, then it's a '101.
1095                          */
1096                         kind = emc6d100 ;
1097                 } else if( company == LM85_COMPANY_SMSC
1098                     && verstep == LM85_VERSTEP_EMC6D102) {
1099                         kind = emc6d102 ;
1100                 } else if( company == LM85_COMPANY_SMSC
1101                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1102                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1103                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1104                             " Defaulting to Generic LM85.\n", verstep );
1105                         kind = any_chip ;
1106                 } else if( kind == any_chip
1107                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1108                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1109                         /* Leave kind as "any_chip" */
1110                 } else {
1111                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1112                         /* Not an LM85 ... */
1113                         if( kind == any_chip ) {  /* User used force=x,y */
1114                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1115                                         " found at %d,0x%02x. Try force_lm85c.\n",
1116                                         i2c_adapter_id(adapter), address );
1117                         }
1118                         err = 0 ;
1119                         goto ERROR1;
1120                 }
1121         }
1122
1123         /* Fill in the chip specific driver values */
1124         if ( kind == any_chip ) {
1125                 type_name = "lm85";
1126         } else if ( kind == lm85b ) {
1127                 type_name = "lm85b";
1128         } else if ( kind == lm85c ) {
1129                 type_name = "lm85c";
1130         } else if ( kind == adm1027 ) {
1131                 type_name = "adm1027";
1132         } else if ( kind == adt7463 ) {
1133                 type_name = "adt7463";
1134         } else if ( kind == emc6d100){
1135                 type_name = "emc6d100";
1136         } else if ( kind == emc6d102 ) {
1137                 type_name = "emc6d102";
1138         }
1139         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1140
1141         /* Fill in the remaining client fields */
1142         data->type = kind;
1143         data->valid = 0;
1144         init_MUTEX(&data->update_lock);
1145
1146         /* Tell the I2C layer a new client has arrived */
1147         if ((err = i2c_attach_client(new_client)))
1148                 goto ERROR1;
1149
1150         /* Set the VRM version */
1151         data->vrm = i2c_which_vrm();
1152
1153         /* Initialize the LM85 chip */
1154         lm85_init_client(new_client);
1155
1156         /* Register sysfs hooks */
1157         data->class_dev = hwmon_device_register(&new_client->dev);
1158         if (IS_ERR(data->class_dev)) {
1159                 err = PTR_ERR(data->class_dev);
1160                 goto ERROR2;
1161         }
1162
1163         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1164         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1165         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1166         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1167         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1168         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1169         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1170         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1171         device_create_file(&new_client->dev, &dev_attr_pwm1);
1172         device_create_file(&new_client->dev, &dev_attr_pwm2);
1173         device_create_file(&new_client->dev, &dev_attr_pwm3);
1174         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1175         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1176         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1177         device_create_file(&new_client->dev, &dev_attr_in0_input);
1178         device_create_file(&new_client->dev, &dev_attr_in1_input);
1179         device_create_file(&new_client->dev, &dev_attr_in2_input);
1180         device_create_file(&new_client->dev, &dev_attr_in3_input);
1181         device_create_file(&new_client->dev, &dev_attr_in4_input);
1182         device_create_file(&new_client->dev, &dev_attr_in0_min);
1183         device_create_file(&new_client->dev, &dev_attr_in1_min);
1184         device_create_file(&new_client->dev, &dev_attr_in2_min);
1185         device_create_file(&new_client->dev, &dev_attr_in3_min);
1186         device_create_file(&new_client->dev, &dev_attr_in4_min);
1187         device_create_file(&new_client->dev, &dev_attr_in0_max);
1188         device_create_file(&new_client->dev, &dev_attr_in1_max);
1189         device_create_file(&new_client->dev, &dev_attr_in2_max);
1190         device_create_file(&new_client->dev, &dev_attr_in3_max);
1191         device_create_file(&new_client->dev, &dev_attr_in4_max);
1192         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1193         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1194         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1195         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1196         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1197         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1198         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1199         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1200         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1201         device_create_file(&new_client->dev, &dev_attr_vrm);
1202         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1203         device_create_file(&new_client->dev, &dev_attr_alarms);
1204         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1205         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1206         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1207         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1208         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1209         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1210         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1211         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1212         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1213         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1214         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1215         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1216         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1217         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1218         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1219         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1220         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1221         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1222         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1223         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1224         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1225         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1226         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1227         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1228
1229         return 0;
1230
1231         /* Error out and cleanup code */
1232     ERROR2:
1233         i2c_detach_client(new_client);
1234     ERROR1:
1235         kfree(data);
1236     ERROR0:
1237         return err;
1238 }
1239
1240 int lm85_detach_client(struct i2c_client *client)
1241 {
1242         struct lm85_data *data = i2c_get_clientdata(client);
1243         hwmon_device_unregister(data->class_dev);
1244         i2c_detach_client(client);
1245         kfree(data);
1246         return 0;
1247 }
1248
1249
1250 int lm85_read_value(struct i2c_client *client, u8 reg)
1251 {
1252         int res;
1253
1254         /* What size location is it? */
1255         switch( reg ) {
1256         case LM85_REG_FAN(0) :  /* Read WORD data */
1257         case LM85_REG_FAN(1) :
1258         case LM85_REG_FAN(2) :
1259         case LM85_REG_FAN(3) :
1260         case LM85_REG_FAN_MIN(0) :
1261         case LM85_REG_FAN_MIN(1) :
1262         case LM85_REG_FAN_MIN(2) :
1263         case LM85_REG_FAN_MIN(3) :
1264         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1265                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1266                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1267                 break ;
1268         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1269                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1270                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1271                 break ;
1272         default:        /* Read BYTE data */
1273                 res = i2c_smbus_read_byte_data(client, reg);
1274                 break ;
1275         }
1276
1277         return res ;
1278 }
1279
1280 int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1281 {
1282         int res ;
1283
1284         switch( reg ) {
1285         case LM85_REG_FAN(0) :  /* Write WORD data */
1286         case LM85_REG_FAN(1) :
1287         case LM85_REG_FAN(2) :
1288         case LM85_REG_FAN(3) :
1289         case LM85_REG_FAN_MIN(0) :
1290         case LM85_REG_FAN_MIN(1) :
1291         case LM85_REG_FAN_MIN(2) :
1292         case LM85_REG_FAN_MIN(3) :
1293         /* NOTE: ALARM is read only, so not included here */
1294                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1295                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1296                 break ;
1297         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1298                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1299                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1300                 break ;
1301         default:        /* Write BYTE data */
1302                 res = i2c_smbus_write_byte_data(client, reg, value);
1303                 break ;
1304         }
1305
1306         return res ;
1307 }
1308
1309 void lm85_init_client(struct i2c_client *client)
1310 {
1311         int value;
1312         struct lm85_data *data = i2c_get_clientdata(client);
1313
1314         dev_dbg(&client->dev, "Initializing device\n");
1315
1316         /* Warn if part was not "READY" */
1317         value = lm85_read_value(client, LM85_REG_CONFIG);
1318         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1319         if( value & 0x02 ) {
1320                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1321                             i2c_adapter_id(client->adapter), client->addr );
1322         };
1323         if( ! (value & 0x04) ) {
1324                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1325                             i2c_adapter_id(client->adapter), client->addr );
1326         };
1327         if( value & 0x10
1328             && ( data->type == adm1027
1329                 || data->type == adt7463 ) ) {
1330                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1331                         "Please report this to the lm85 maintainer.\n",
1332                             i2c_adapter_id(client->adapter), client->addr );
1333         };
1334
1335         /* WE INTENTIONALLY make no changes to the limits,
1336          *   offsets, pwms, fans and zones.  If they were
1337          *   configured, we don't want to mess with them.
1338          *   If they weren't, the default is 100% PWM, no
1339          *   control and will suffice until 'sensors -s'
1340          *   can be run by the user.
1341          */
1342
1343         /* Start monitoring */
1344         value = lm85_read_value(client, LM85_REG_CONFIG);
1345         /* Try to clear LOCK, Set START, save everything else */
1346         value = (value & ~ 0x02) | 0x01 ;
1347         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1348         lm85_write_value(client, LM85_REG_CONFIG, value);
1349 }
1350
1351 static struct lm85_data *lm85_update_device(struct device *dev)
1352 {
1353         struct i2c_client *client = to_i2c_client(dev);
1354         struct lm85_data *data = i2c_get_clientdata(client);
1355         int i;
1356
1357         down(&data->update_lock);
1358
1359         if ( !data->valid ||
1360              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1361                 /* Things that change quickly */
1362                 dev_dbg(&client->dev, "Reading sensor values\n");
1363
1364                 /* Have to read extended bits first to "freeze" the
1365                  * more significant bits that are read later.
1366                  */
1367                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1368                         int ext1 = lm85_read_value(client,
1369                                                    ADM1027_REG_EXTEND_ADC1);
1370                         int ext2 =  lm85_read_value(client,
1371                                                     ADM1027_REG_EXTEND_ADC2);
1372                         int val = (ext1 << 8) + ext2;
1373
1374                         for(i = 0; i <= 4; i++)
1375                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1376
1377                         for(i = 0; i <= 2; i++)
1378                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1379                 }
1380
1381                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1382                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1383                    other chips ext is always 0 and the value of scale is
1384                    irrelevant. So it is left in 4*/
1385                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1386
1387                 for (i = 0; i <= 4; ++i) {
1388                         data->in[i] =
1389                             lm85_read_value(client, LM85_REG_IN(i));
1390                 }
1391
1392                 for (i = 0; i <= 3; ++i) {
1393                         data->fan[i] =
1394                             lm85_read_value(client, LM85_REG_FAN(i));
1395                 }
1396
1397                 for (i = 0; i <= 2; ++i) {
1398                         data->temp[i] =
1399                             lm85_read_value(client, LM85_REG_TEMP(i));
1400                 }
1401
1402                 for (i = 0; i <= 2; ++i) {
1403                         data->pwm[i] =
1404                             lm85_read_value(client, LM85_REG_PWM(i));
1405                 }
1406
1407                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1408
1409                 if ( data->type == adt7463 ) {
1410                         if( data->therm_total < ULONG_MAX - 256 ) {
1411                             data->therm_total +=
1412                                 lm85_read_value(client, ADT7463_REG_THERM );
1413                         }
1414                 } else if ( data->type == emc6d100 ) {
1415                         /* Three more voltage sensors */
1416                         for (i = 5; i <= 7; ++i) {
1417                                 data->in[i] =
1418                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1419                         }
1420                         /* More alarm bits */
1421                         data->alarms |=
1422                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1423                 } else if (data->type == emc6d102 ) {
1424                         /* Have to read LSB bits after the MSB ones because
1425                            the reading of the MSB bits has frozen the
1426                            LSBs (backward from the ADM1027).
1427                          */
1428                         int ext1 = lm85_read_value(client,
1429                                                    EMC6D102_REG_EXTEND_ADC1);
1430                         int ext2 = lm85_read_value(client,
1431                                                    EMC6D102_REG_EXTEND_ADC2);
1432                         int ext3 = lm85_read_value(client,
1433                                                    EMC6D102_REG_EXTEND_ADC3);
1434                         int ext4 = lm85_read_value(client,
1435                                                    EMC6D102_REG_EXTEND_ADC4);
1436                         data->in_ext[0] = ext3 & 0x0f;
1437                         data->in_ext[1] = ext4 & 0x0f;
1438                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1439                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1440                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1441
1442                         data->temp_ext[0] = ext1 & 0x0f;
1443                         data->temp_ext[1] = ext2 & 0x0f;
1444                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1445                 }
1446
1447                 data->last_reading = jiffies ;
1448         };  /* last_reading */
1449
1450         if ( !data->valid ||
1451              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1452                 /* Things that don't change often */
1453                 dev_dbg(&client->dev, "Reading config values\n");
1454
1455                 for (i = 0; i <= 4; ++i) {
1456                         data->in_min[i] =
1457                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1458                         data->in_max[i] =
1459                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1460                 }
1461
1462                 if ( data->type == emc6d100 ) {
1463                         for (i = 5; i <= 7; ++i) {
1464                                 data->in_min[i] =
1465                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1466                                 data->in_max[i] =
1467                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1468                         }
1469                 }
1470
1471                 for (i = 0; i <= 3; ++i) {
1472                         data->fan_min[i] =
1473                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1474                 }
1475
1476                 for (i = 0; i <= 2; ++i) {
1477                         data->temp_min[i] =
1478                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1479                         data->temp_max[i] =
1480                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1481                 }
1482
1483                 data->vid = lm85_read_value(client, LM85_REG_VID);
1484
1485                 for (i = 0; i <= 2; ++i) {
1486                         int val ;
1487                         data->autofan[i].config =
1488                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1489                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1490                         data->autofan[i].freq = val & 0x07 ;
1491                         data->zone[i].range = (val >> 4) & 0x0f ;
1492                         data->autofan[i].min_pwm =
1493                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1494                         data->zone[i].limit =
1495                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1496                         data->zone[i].critical =
1497                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1498                 }
1499
1500                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1501                 data->smooth[0] = i & 0x0f ;
1502                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1503                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1504                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1505                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1506                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1507                 data->smooth[1] = (i>>4) & 0x0f ;
1508                 data->smooth[2] = i & 0x0f ;
1509
1510                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1511                 data->zone[0].hyst = (i>>4) & 0x0f ;
1512                 data->zone[1].hyst = i & 0x0f ;
1513
1514                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1515                 data->zone[2].hyst = (i>>4) & 0x0f ;
1516
1517                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1518                         data->tach_mode = lm85_read_value(client,
1519                                 LM85_REG_TACH_MODE );
1520                         data->spinup_ctl = lm85_read_value(client,
1521                                 LM85_REG_SPINUP_CTL );
1522                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1523                         if ( data->type == adt7463 ) {
1524                                 for (i = 0; i <= 2; ++i) {
1525                                     data->oppoint[i] = lm85_read_value(client,
1526                                         ADT7463_REG_OPPOINT(i) );
1527                                 }
1528                                 data->tmin_ctl = lm85_read_value(client,
1529                                         ADT7463_REG_TMIN_CTL1 );
1530                                 data->therm_limit = lm85_read_value(client,
1531                                         ADT7463_REG_THERM_LIMIT );
1532                         }
1533                         for (i = 0; i <= 2; ++i) {
1534                             data->temp_offset[i] = lm85_read_value(client,
1535                                 ADM1027_REG_TEMP_OFFSET(i) );
1536                         }
1537                         data->tach_mode = lm85_read_value(client,
1538                                 ADM1027_REG_CONFIG3 );
1539                         data->fan_ppr = lm85_read_value(client,
1540                                 ADM1027_REG_FAN_PPR );
1541                 }
1542
1543                 data->last_config = jiffies;
1544         };  /* last_config */
1545
1546         data->valid = 1;
1547
1548         up(&data->update_lock);
1549
1550         return data;
1551 }
1552
1553
1554 static int __init sm_lm85_init(void)
1555 {
1556         return i2c_add_driver(&lm85_driver);
1557 }
1558
1559 static void  __exit sm_lm85_exit(void)
1560 {
1561         i2c_del_driver(&lm85_driver);
1562 }
1563
1564 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1565  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1566  *     post 2.7.0 CVS changes.
1567  */
1568 MODULE_LICENSE("GPL");
1569 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1570 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1571
1572 module_init(sm_lm85_init);
1573 module_exit(sm_lm85_exit);