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