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

   1 /*
   2     lm85.c - Part of lm_sensors, Linux kernel modules for hardware
   3              monitoring
   4     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
   5     Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
   6     Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
   7     Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
   8
   9     Chip details at           <http://www.national.com/ds/LM/LM85.pdf>
  10
  11     This program is free software; you can redistribute it and/or modify
  12     it under the terms of the GNU General Public License as published by
  13     the Free Software Foundation; either version 2 of the License, or
  14     (at your option) any later version.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with this program; if not, write to the Free Software
  23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/jiffies.h>
  30 #include <linux/i2c.h>
  31 #include <linux/hwmon.h>
  32 #include <linux/hwmon-vid.h>
  33 #include <linux/err.h>
  34
  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         .flags          = I2C_DF_NOTIFY,
 387         .attach_adapter = lm85_attach_adapter,
 388         .detach_client  = lm85_detach_client,
 389 };
 390
 391
 392 /* 4 Fans */
 393 static ssize_t show_fan(struct device *dev, char *buf, int nr)
 394 {
 395         struct lm85_data *data = lm85_update_device(dev);
 396         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
 397 }
 398 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
 399 {
 400         struct lm85_data *data = lm85_update_device(dev);
 401         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
 402 }
 403 static ssize_t set_fan_min(struct device *dev, const char *buf,
 404                 size_t count, int nr)
 405 {
 406         struct i2c_client *client = to_i2c_client(dev);
 407         struct lm85_data *data = i2c_get_clientdata(client);
 408         long val = simple_strtol(buf, NULL, 10);
 409
 410         down(&data->update_lock);
 411         data->fan_min[nr] = FAN_TO_REG(val);
 412         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
 413         up(&data->update_lock);
 414         return count;
 415 }
 416
 417 #define show_fan_offset(offset)                                         \
 418 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 419 {                                                                       \
 420         return show_fan(dev, buf, offset - 1);                          \
 421 }                                                                       \
 422 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
 423 {                                                                       \
 424         return show_fan_min(dev, buf, offset - 1);                      \
 425 }                                                                       \
 426 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
 427         const char *buf, size_t count)                                  \
 428 {                                                                       \
 429         return set_fan_min(dev, buf, count, offset - 1);                \
 430 }                                                                       \
 431 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
 432                 NULL);                                                  \
 433 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
 434                 show_fan_##offset##_min, set_fan_##offset##_min);
 435
 436 show_fan_offset(1);
 437 show_fan_offset(2);
 438 show_fan_offset(3);
 439 show_fan_offset(4);
 440
 441 /* vid, vrm, alarms */
 442
 443 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 444 {
 445         struct lm85_data *data = lm85_update_device(dev);
 446         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 447 }
 448
 449 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 450
 451 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 452 {
 453         struct lm85_data *data = lm85_update_device(dev);
 454         return sprintf(buf, "%ld\n", (long) data->vrm);
 455 }
 456
 457 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 458 {
 459         struct i2c_client *client = to_i2c_client(dev);
 460         struct lm85_data *data = i2c_get_clientdata(client);
 461         u32 val;
 462
 463         val = simple_strtoul(buf, NULL, 10);
 464         data->vrm = val;
 465         return count;
 466 }
 467
 468 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 469
 470 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 471 {
 472         struct lm85_data *data = lm85_update_device(dev);
 473         return sprintf(buf, "%u\n", data->alarms);
 474 }
 475
 476 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 477
 478 /* pwm */
 479
 480 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
 481 {
 482         struct lm85_data *data = lm85_update_device(dev);
 483         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 484 }
 485 static ssize_t set_pwm(struct device *dev, const char *buf,
 486                 size_t count, int nr)
 487 {
 488         struct i2c_client *client = to_i2c_client(dev);
 489         struct lm85_data *data = i2c_get_clientdata(client);
 490         long val = simple_strtol(buf, NULL, 10);
 491
 492         down(&data->update_lock);
 493         data->pwm[nr] = PWM_TO_REG(val);
 494         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 495         up(&data->update_lock);
 496         return count;
 497 }
 498 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
 499 {
 500         struct lm85_data *data = lm85_update_device(dev);
 501         int     pwm_zone;
 502
 503         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 504         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 505 }
 506
 507 #define show_pwm_reg(offset)                                            \
 508 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 509 {                                                                       \
 510         return show_pwm(dev, buf, offset - 1);                          \
 511 }                                                                       \
 512 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
 513                                  const char *buf, size_t count)         \
 514 {                                                                       \
 515         return set_pwm(dev, buf, count, offset - 1);                    \
 516 }                                                                       \
 517 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
 518 {                                                                       \
 519         return show_pwm_enable(dev, buf, offset - 1);                   \
 520 }                                                                       \
 521 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
 522                 show_pwm_##offset, set_pwm_##offset);                   \
 523 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
 524                 show_pwm_enable##offset, NULL);
 525
 526 show_pwm_reg(1);
 527 show_pwm_reg(2);
 528 show_pwm_reg(3);
 529
 530 /* Voltages */
 531
 532 static ssize_t show_in(struct device *dev, char *buf, int nr)
 533 {
 534         struct lm85_data *data = lm85_update_device(dev);
 535         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 536                                                      data->in[nr],
 537                                                      data->in_ext[nr],
 538                                                      data->adc_scale) );
 539 }
 540 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
 541 {
 542         struct lm85_data *data = lm85_update_device(dev);
 543         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 544 }
 545 static ssize_t set_in_min(struct device *dev, const char *buf,
 546                 size_t count, int nr)
 547 {
 548         struct i2c_client *client = to_i2c_client(dev);
 549         struct lm85_data *data = i2c_get_clientdata(client);
 550         long val = simple_strtol(buf, NULL, 10);
 551
 552         down(&data->update_lock);
 553         data->in_min[nr] = INS_TO_REG(nr, val);
 554         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 555         up(&data->update_lock);
 556         return count;
 557 }
 558 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
 559 {
 560         struct lm85_data *data = lm85_update_device(dev);
 561         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 562 }
 563 static ssize_t set_in_max(struct device *dev, const char *buf,
 564                 size_t count, int nr)
 565 {
 566         struct i2c_client *client = to_i2c_client(dev);
 567         struct lm85_data *data = i2c_get_clientdata(client);
 568         long val = simple_strtol(buf, NULL, 10);
 569
 570         down(&data->update_lock);
 571         data->in_max[nr] = INS_TO_REG(nr, val);
 572         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 573         up(&data->update_lock);
 574         return count;
 575 }
 576 #define show_in_reg(offset)                                             \
 577 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
 578 {                                                                       \
 579         return show_in(dev, buf, offset);                               \
 580 }                                                                       \
 581 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
 582 {                                                                       \
 583         return show_in_min(dev, buf, offset);                           \
 584 }                                                                       \
 585 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
 586 {                                                                       \
 587         return show_in_max(dev, buf, offset);                           \
 588 }                                                                       \
 589 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
 590         const char *buf, size_t count)                                  \
 591 {                                                                       \
 592         return set_in_min(dev, buf, count, offset);                     \
 593 }                                                                       \
 594 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
 595         const char *buf, size_t count)                                  \
 596 {                                                                       \
 597         return set_in_max(dev, buf, count, offset);                     \
 598 }                                                                       \
 599 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
 600                 NULL);                                                  \
 601 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
 602                 show_in_##offset##_min, set_in_##offset##_min);         \
 603 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
 604                 show_in_##offset##_max, set_in_##offset##_max);
 605
 606 show_in_reg(0);
 607 show_in_reg(1);
 608 show_in_reg(2);
 609 show_in_reg(3);
 610 show_in_reg(4);
 611
 612 /* Temps */
 613
 614 static ssize_t show_temp(struct device *dev, char *buf, int nr)
 615 {
 616         struct lm85_data *data = lm85_update_device(dev);
 617         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 618                                                     data->temp_ext[nr],
 619                                                     data->adc_scale) );
 620 }
 621 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
 622 {
 623         struct lm85_data *data = lm85_update_device(dev);
 624         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 625 }
 626 static ssize_t set_temp_min(struct device *dev, const char *buf,
 627                 size_t count, int nr)
 628 {
 629         struct i2c_client *client = to_i2c_client(dev);
 630         struct lm85_data *data = i2c_get_clientdata(client);
 631         long val = simple_strtol(buf, NULL, 10);
 632
 633         down(&data->update_lock);
 634         data->temp_min[nr] = TEMP_TO_REG(val);
 635         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 636         up(&data->update_lock);
 637         return count;
 638 }
 639 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
 640 {
 641         struct lm85_data *data = lm85_update_device(dev);
 642         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 643 }
 644 static ssize_t set_temp_max(struct device *dev, const char *buf,
 645                 size_t count, int nr)
 646 {
 647         struct i2c_client *client = to_i2c_client(dev);
 648         struct lm85_data *data = i2c_get_clientdata(client);
 649         long val = simple_strtol(buf, NULL, 10);
 650
 651         down(&data->update_lock);
 652         data->temp_max[nr] = TEMP_TO_REG(val);
 653         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 654         up(&data->update_lock);
 655         return count;
 656 }
 657 #define show_temp_reg(offset)                                           \
 658 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
 659 {                                                                       \
 660         return show_temp(dev, buf, offset - 1);                         \
 661 }                                                                       \
 662 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
 663 {                                                                       \
 664         return show_temp_min(dev, buf, offset - 1);                     \
 665 }                                                                       \
 666 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
 667 {                                                                       \
 668         return show_temp_max(dev, buf, offset - 1);                     \
 669 }                                                                       \
 670 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
 671         const char *buf, size_t count)                                  \
 672 {                                                                       \
 673         return set_temp_min(dev, buf, count, offset - 1);               \
 674 }                                                                       \
 675 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
 676         const char *buf, size_t count)                                  \
 677 {                                                                       \
 678         return set_temp_max(dev, buf, count, offset - 1);               \
 679 }                                                                       \
 680 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
 681                 NULL);                                                  \
 682 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
 683                 show_temp_##offset##_min, set_temp_##offset##_min);     \
 684 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
 685                 show_temp_##offset##_max, set_temp_##offset##_max);
 686
 687 show_temp_reg(1);
 688 show_temp_reg(2);
 689 show_temp_reg(3);
 690
 691
 692 /* Automatic PWM control */
 693
 694 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
 695 {
 696         struct lm85_data *data = lm85_update_device(dev);
 697         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 698 }
 699 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
 700         size_t count, int nr)
 701 {
 702         struct i2c_client *client = to_i2c_client(dev);
 703         struct lm85_data *data = i2c_get_clientdata(client);
 704         long val = simple_strtol(buf, NULL, 10);
 705
 706         down(&data->update_lock);
 707         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 708                 | ZONE_TO_REG(val) ;
 709         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 710                 data->autofan[nr].config);
 711         up(&data->update_lock);
 712         return count;
 713 }
 714 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
 715 {
 716         struct lm85_data *data = lm85_update_device(dev);
 717         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 718 }
 719 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
 720         size_t count, int nr)
 721 {
 722         struct i2c_client *client = to_i2c_client(dev);
 723         struct lm85_data *data = i2c_get_clientdata(client);
 724         long val = simple_strtol(buf, NULL, 10);
 725
 726         down(&data->update_lock);
 727         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 728         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 729                 data->autofan[nr].min_pwm);
 730         up(&data->update_lock);
 731         return count;
 732 }
 733 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
 734 {
 735         struct lm85_data *data = lm85_update_device(dev);
 736         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 737 }
 738 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
 739         size_t count, int nr)
 740 {
 741         struct i2c_client *client = to_i2c_client(dev);
 742         struct lm85_data *data = i2c_get_clientdata(client);
 743         long val = simple_strtol(buf, NULL, 10);
 744
 745         down(&data->update_lock);
 746         data->autofan[nr].min_off = val;
 747         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 748                 | data->syncpwm3
 749                 | (data->autofan[0].min_off ? 0x20 : 0)
 750                 | (data->autofan[1].min_off ? 0x40 : 0)
 751                 | (data->autofan[2].min_off ? 0x80 : 0)
 752         );
 753         up(&data->update_lock);
 754         return count;
 755 }
 756 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
 757 {
 758         struct lm85_data *data = lm85_update_device(dev);
 759         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 760 }
 761 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
 762                 size_t count, int nr)
 763 {
 764         struct i2c_client *client = to_i2c_client(dev);
 765         struct lm85_data *data = i2c_get_clientdata(client);
 766         long val = simple_strtol(buf, NULL, 10);
 767
 768         down(&data->update_lock);
 769         data->autofan[nr].freq = FREQ_TO_REG(val);
 770         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 771                 (data->zone[nr].range << 4)
 772                 | data->autofan[nr].freq
 773         );
 774         up(&data->update_lock);
 775         return count;
 776 }
 777 #define pwm_auto(offset)                                                \
 778 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
 779         char *buf)                                                      \
 780 {                                                                       \
 781         return show_pwm_auto_channels(dev, buf, offset - 1);            \
 782 }                                                                       \
 783 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
 784         const char *buf, size_t count)                                  \
 785 {                                                                       \
 786         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
 787 }                                                                       \
 788 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
 789         char *buf)                                                      \
 790 {                                                                       \
 791         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
 792 }                                                                       \
 793 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
 794         const char *buf, size_t count)                                  \
 795 {                                                                       \
 796         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
 797 }                                                                       \
 798 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
 799         char *buf)                                                      \
 800 {                                                                       \
 801         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
 802 }                                                                       \
 803 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
 804         const char *buf, size_t count)                                  \
 805 {                                                                       \
 806         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
 807 }                                                                       \
 808 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
 809         char *buf)                                                      \
 810 {                                                                       \
 811         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
 812 }                                                                       \
 813 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
 814         const char *buf, size_t count)                                  \
 815 {                                                                       \
 816         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
 817 }                                                                       \
 818 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
 819                 show_pwm##offset##_auto_channels,                       \
 820                 set_pwm##offset##_auto_channels);                       \
 821 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
 822                 show_pwm##offset##_auto_pwm_min,                        \
 823                 set_pwm##offset##_auto_pwm_min);                        \
 824 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
 825                 show_pwm##offset##_auto_pwm_minctl,                     \
 826                 set_pwm##offset##_auto_pwm_minctl);                     \
 827 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
 828                 show_pwm##offset##_auto_pwm_freq,                       \
 829                 set_pwm##offset##_auto_pwm_freq);
 830 pwm_auto(1);
 831 pwm_auto(2);
 832 pwm_auto(3);
 833
 834 /* Temperature settings for automatic PWM control */
 835
 836 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
 837 {
 838         struct lm85_data *data = lm85_update_device(dev);
 839         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 840                 HYST_FROM_REG(data->zone[nr].hyst));
 841 }
 842 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
 843         size_t count, int nr)
 844 {
 845         struct i2c_client *client = to_i2c_client(dev);
 846         struct lm85_data *data = i2c_get_clientdata(client);
 847         int min;
 848         long val = simple_strtol(buf, NULL, 10);
 849
 850         down(&data->update_lock);
 851         min = TEMP_FROM_REG(data->zone[nr].limit);
 852         data->zone[nr].off_desired = TEMP_TO_REG(val);
 853         data->zone[nr].hyst = HYST_TO_REG(min - val);
 854         if ( nr == 0 || nr == 1 ) {
 855                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 856                         (data->zone[0].hyst << 4)
 857                         | data->zone[1].hyst
 858                         );
 859         } else {
 860                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 861                         (data->zone[2].hyst << 4)
 862                 );
 863         }
 864         up(&data->update_lock);
 865         return count;
 866 }
 867 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
 868 {
 869         struct lm85_data *data = lm85_update_device(dev);
 870         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 871 }
 872 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
 873         size_t count, int nr)
 874 {
 875         struct i2c_client *client = to_i2c_client(dev);
 876         struct lm85_data *data = i2c_get_clientdata(client);
 877         long val = simple_strtol(buf, NULL, 10);
 878
 879         down(&data->update_lock);
 880         data->zone[nr].limit = TEMP_TO_REG(val);
 881         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 882                 data->zone[nr].limit);
 883
 884 /* Update temp_auto_max and temp_auto_range */
 885         data->zone[nr].range = RANGE_TO_REG(
 886                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 887                 TEMP_FROM_REG(data->zone[nr].limit));
 888         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 889                 ((data->zone[nr].range & 0x0f) << 4)
 890                 | (data->autofan[nr].freq & 0x07));
 891
 892 /* Update temp_auto_hyst and temp_auto_off */
 893         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 894                 data->zone[nr].limit) - TEMP_FROM_REG(
 895                 data->zone[nr].off_desired));
 896         if ( nr == 0 || nr == 1 ) {
 897                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 898                         (data->zone[0].hyst << 4)
 899                         | data->zone[1].hyst
 900                         );
 901         } else {
 902                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 903                         (data->zone[2].hyst << 4)
 904                 );
 905         }
 906         up(&data->update_lock);
 907         return count;
 908 }
 909 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
 910 {
 911         struct lm85_data *data = lm85_update_device(dev);
 912         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 913                 RANGE_FROM_REG(data->zone[nr].range));
 914 }
 915 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
 916         size_t count, int nr)
 917 {
 918         struct i2c_client *client = to_i2c_client(dev);
 919         struct lm85_data *data = i2c_get_clientdata(client);
 920         int min;
 921         long val = simple_strtol(buf, NULL, 10);
 922
 923         down(&data->update_lock);
 924         min = TEMP_FROM_REG(data->zone[nr].limit);
 925         data->zone[nr].max_desired = TEMP_TO_REG(val);
 926         data->zone[nr].range = RANGE_TO_REG(
 927                 val - min);
 928         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 929                 ((data->zone[nr].range & 0x0f) << 4)
 930                 | (data->autofan[nr].freq & 0x07));
 931         up(&data->update_lock);
 932         return count;
 933 }
 934 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
 935 {
 936         struct lm85_data *data = lm85_update_device(dev);
 937         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 938 }
 939 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
 940                 size_t count, int nr)
 941 {
 942         struct i2c_client *client = to_i2c_client(dev);
 943         struct lm85_data *data = i2c_get_clientdata(client);
 944         long val = simple_strtol(buf, NULL, 10);
 945
 946         down(&data->update_lock);
 947         data->zone[nr].critical = TEMP_TO_REG(val);
 948         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 949                 data->zone[nr].critical);
 950         up(&data->update_lock);
 951         return count;
 952 }
 953 #define temp_auto(offset)                                               \
 954 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
 955         char *buf)                                                      \
 956 {                                                                       \
 957         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
 958 }                                                                       \
 959 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
 960         const char *buf, size_t count)                                  \
 961 {                                                                       \
 962         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
 963 }                                                                       \
 964 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
 965         char *buf)                                                      \
 966 {                                                                       \
 967         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
 968 }                                                                       \
 969 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
 970         const char *buf, size_t count)                                  \
 971 {                                                                       \
 972         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
 973 }                                                                       \
 974 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
 975         char *buf)                                                      \
 976 {                                                                       \
 977         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
 978 }                                                                       \
 979 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
 980         const char *buf, size_t count)                                  \
 981 {                                                                       \
 982         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
 983 }                                                                       \
 984 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
 985         char *buf)                                                      \
 986 {                                                                       \
 987         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
 988 }                                                                       \
 989 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
 990         const char *buf, size_t count)                                  \
 991 {                                                                       \
 992         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
 993 }                                                                       \
 994 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
 995                 show_temp##offset##_auto_temp_off,                      \
 996                 set_temp##offset##_auto_temp_off);                      \
 997 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
 998                 show_temp##offset##_auto_temp_min,                      \
 999                 set_temp##offset##_auto_temp_min);                      \
1000 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1001                 show_temp##offset##_auto_temp_max,                      \
1002                 set_temp##offset##_auto_temp_max);                      \
1003 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1004                 show_temp##offset##_auto_temp_crit,                     \
1005                 set_temp##offset##_auto_temp_crit);
1006 temp_auto(1);
1007 temp_auto(2);
1008 temp_auto(3);
1009
1010 static int lm85_attach_adapter(struct i2c_adapter *adapter)
1011 {
1012         if (!(adapter->class & I2C_CLASS_HWMON))
1013                 return 0;
1014         return i2c_probe(adapter, &addr_data, lm85_detect);
1015 }
1016
1017 static int lm85_detect(struct i2c_adapter *adapter, int address,
1018                 int kind)
1019 {
1020         int company, verstep ;
1021         struct i2c_client *new_client = NULL;
1022         struct lm85_data *data;
1023         int err = 0;
1024         const char *type_name = "";
1025
1026         if (!i2c_check_functionality(adapter,
1027                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1028                 /* We need to be able to do byte I/O */
1029                 goto ERROR0 ;
1030         };
1031
1032         /* OK. For now, we presume we have a valid client. We now create the
1033            client structure, even though we cannot fill it completely yet.
1034            But it allows us to access lm85_{read,write}_value. */
1035
1036         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1037                 err = -ENOMEM;
1038                 goto ERROR0;
1039         }
1040
1041         new_client = &data->client;
1042         i2c_set_clientdata(new_client, data);
1043         new_client->addr = address;
1044         new_client->adapter = adapter;
1045         new_client->driver = &lm85_driver;
1046         new_client->flags = 0;
1047
1048         /* Now, we do the remaining detection. */
1049
1050         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1051         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1052
1053         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1054                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1055                 i2c_adapter_id(new_client->adapter), new_client->addr,
1056                 company, verstep);
1057
1058         /* If auto-detecting, Determine the chip type. */
1059         if (kind <= 0) {
1060                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1061                         i2c_adapter_id(adapter), address );
1062                 if( company == LM85_COMPANY_NATIONAL
1063                     && verstep == LM85_VERSTEP_LM85C ) {
1064                         kind = lm85c ;
1065                 } else if( company == LM85_COMPANY_NATIONAL
1066                     && verstep == LM85_VERSTEP_LM85B ) {
1067                         kind = lm85b ;
1068                 } else if( company == LM85_COMPANY_NATIONAL
1069                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1070                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1071                                 " Defaulting to LM85.\n", verstep);
1072                         kind = any_chip ;
1073                 } else if( company == LM85_COMPANY_ANALOG_DEV
1074                     && verstep == LM85_VERSTEP_ADM1027 ) {
1075                         kind = adm1027 ;
1076                 } else if( company == LM85_COMPANY_ANALOG_DEV
1077                     && (verstep == LM85_VERSTEP_ADT7463
1078                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1079                         kind = adt7463 ;
1080                 } else if( company == LM85_COMPANY_ANALOG_DEV
1081                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1082                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1083                                 " Defaulting to Generic LM85.\n", verstep );
1084                         kind = any_chip ;
1085                 } else if( company == LM85_COMPANY_SMSC
1086                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1087                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1088                         /* Unfortunately, we can't tell a '100 from a '101
1089                          * from the registers.  Since a '101 is a '100
1090                          * in a package with fewer pins and therefore no
1091                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1092                          * inputs read 0, then it's a '101.
1093                          */
1094                         kind = emc6d100 ;
1095                 } else if( company == LM85_COMPANY_SMSC
1096                     && verstep == LM85_VERSTEP_EMC6D102) {
1097                         kind = emc6d102 ;
1098                 } else if( company == LM85_COMPANY_SMSC
1099                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1100                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1101                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1102                             " Defaulting to Generic LM85.\n", verstep );
1103                         kind = any_chip ;
1104                 } else if( kind == any_chip
1105                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1106                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1107                         /* Leave kind as "any_chip" */
1108                 } else {
1109                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1110                         /* Not an LM85 ... */
1111                         if( kind == any_chip ) {  /* User used force=x,y */
1112                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1113                                         " found at %d,0x%02x. Try force_lm85c.\n",
1114                                         i2c_adapter_id(adapter), address );
1115                         }
1116                         err = 0 ;
1117                         goto ERROR1;
1118                 }
1119         }
1120
1121         /* Fill in the chip specific driver values */
1122         if ( kind == any_chip ) {
1123                 type_name = "lm85";
1124         } else if ( kind == lm85b ) {
1125                 type_name = "lm85b";
1126         } else if ( kind == lm85c ) {
1127                 type_name = "lm85c";
1128         } else if ( kind == adm1027 ) {
1129                 type_name = "adm1027";
1130         } else if ( kind == adt7463 ) {
1131                 type_name = "adt7463";
1132         } else if ( kind == emc6d100){
1133                 type_name = "emc6d100";
1134         } else if ( kind == emc6d102 ) {
1135                 type_name = "emc6d102";
1136         }
1137         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1138
1139         /* Fill in the remaining client fields */
1140         data->type = kind;
1141         data->valid = 0;
1142         init_MUTEX(&data->update_lock);
1143
1144         /* Tell the I2C layer a new client has arrived */
1145         if ((err = i2c_attach_client(new_client)))
1146                 goto ERROR1;
1147
1148         /* Set the VRM version */
1149         data->vrm = vid_which_vrm();
1150
1151         /* Initialize the LM85 chip */
1152         lm85_init_client(new_client);
1153
1154         /* Register sysfs hooks */
1155         data->class_dev = hwmon_device_register(&new_client->dev);
1156         if (IS_ERR(data->class_dev)) {
1157                 err = PTR_ERR(data->class_dev);
1158                 goto ERROR2;
1159         }
1160
1161         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1162         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1163         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1164         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1165         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1166         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1167         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1168         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1169         device_create_file(&new_client->dev, &dev_attr_pwm1);
1170         device_create_file(&new_client->dev, &dev_attr_pwm2);
1171         device_create_file(&new_client->dev, &dev_attr_pwm3);
1172         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1173         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1174         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1175         device_create_file(&new_client->dev, &dev_attr_in0_input);
1176         device_create_file(&new_client->dev, &dev_attr_in1_input);
1177         device_create_file(&new_client->dev, &dev_attr_in2_input);
1178         device_create_file(&new_client->dev, &dev_attr_in3_input);
1179         device_create_file(&new_client->dev, &dev_attr_in4_input);
1180         device_create_file(&new_client->dev, &dev_attr_in0_min);
1181         device_create_file(&new_client->dev, &dev_attr_in1_min);
1182         device_create_file(&new_client->dev, &dev_attr_in2_min);
1183         device_create_file(&new_client->dev, &dev_attr_in3_min);
1184         device_create_file(&new_client->dev, &dev_attr_in4_min);
1185         device_create_file(&new_client->dev, &dev_attr_in0_max);
1186         device_create_file(&new_client->dev, &dev_attr_in1_max);
1187         device_create_file(&new_client->dev, &dev_attr_in2_max);
1188         device_create_file(&new_client->dev, &dev_attr_in3_max);
1189         device_create_file(&new_client->dev, &dev_attr_in4_max);
1190         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1191         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1192         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1193         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1194         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1195         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1196         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1197         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1198         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1199         device_create_file(&new_client->dev, &dev_attr_vrm);
1200         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1201         device_create_file(&new_client->dev, &dev_attr_alarms);
1202         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1203         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1204         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1205         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1206         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1207         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1208         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1209         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1210         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1211         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1212         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1213         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1214         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1215         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1216         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1217         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1218         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1219         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1220         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1221         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1222         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1223         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1224         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1225         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1226
1227         return 0;
1228
1229         /* Error out and cleanup code */
1230     ERROR2:
1231         i2c_detach_client(new_client);
1232     ERROR1:
1233         kfree(data);
1234     ERROR0:
1235         return err;
1236 }
1237
1238 static int lm85_detach_client(struct i2c_client *client)
1239 {
1240         struct lm85_data *data = i2c_get_clientdata(client);
1241         hwmon_device_unregister(data->class_dev);
1242         i2c_detach_client(client);
1243         kfree(data);
1244         return 0;
1245 }
1246
1247
1248 static int lm85_read_value(struct i2c_client *client, u8 reg)
1249 {
1250         int res;
1251
1252         /* What size location is it? */
1253         switch( reg ) {
1254         case LM85_REG_FAN(0) :  /* Read WORD data */
1255         case LM85_REG_FAN(1) :
1256         case LM85_REG_FAN(2) :
1257         case LM85_REG_FAN(3) :
1258         case LM85_REG_FAN_MIN(0) :
1259         case LM85_REG_FAN_MIN(1) :
1260         case LM85_REG_FAN_MIN(2) :
1261         case LM85_REG_FAN_MIN(3) :
1262         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1263                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1264                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1265                 break ;
1266         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1267                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1268                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1269                 break ;
1270         default:        /* Read BYTE data */
1271                 res = i2c_smbus_read_byte_data(client, reg);
1272                 break ;
1273         }
1274
1275         return res ;
1276 }
1277
1278 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1279 {
1280         int res ;
1281
1282         switch( reg ) {
1283         case LM85_REG_FAN(0) :  /* Write WORD data */
1284         case LM85_REG_FAN(1) :
1285         case LM85_REG_FAN(2) :
1286         case LM85_REG_FAN(3) :
1287         case LM85_REG_FAN_MIN(0) :
1288         case LM85_REG_FAN_MIN(1) :
1289         case LM85_REG_FAN_MIN(2) :
1290         case LM85_REG_FAN_MIN(3) :
1291         /* NOTE: ALARM is read only, so not included here */
1292                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1293                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1294                 break ;
1295         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1296                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1297                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1298                 break ;
1299         default:        /* Write BYTE data */
1300                 res = i2c_smbus_write_byte_data(client, reg, value);
1301                 break ;
1302         }
1303
1304         return res ;
1305 }
1306
1307 static void lm85_init_client(struct i2c_client *client)
1308 {
1309         int value;
1310         struct lm85_data *data = i2c_get_clientdata(client);
1311
1312         dev_dbg(&client->dev, "Initializing device\n");
1313
1314         /* Warn if part was not "READY" */
1315         value = lm85_read_value(client, LM85_REG_CONFIG);
1316         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1317         if( value & 0x02 ) {
1318                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1319                             i2c_adapter_id(client->adapter), client->addr );
1320         };
1321         if( ! (value & 0x04) ) {
1322                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1323                             i2c_adapter_id(client->adapter), client->addr );
1324         };
1325         if( value & 0x10
1326             && ( data->type == adm1027
1327                 || data->type == adt7463 ) ) {
1328                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1329                         "Please report this to the lm85 maintainer.\n",
1330                             i2c_adapter_id(client->adapter), client->addr );
1331         };
1332
1333         /* WE INTENTIONALLY make no changes to the limits,
1334          *   offsets, pwms, fans and zones.  If they were
1335          *   configured, we don't want to mess with them.
1336          *   If they weren't, the default is 100% PWM, no
1337          *   control and will suffice until 'sensors -s'
1338          *   can be run by the user.
1339          */
1340
1341         /* Start monitoring */
1342         value = lm85_read_value(client, LM85_REG_CONFIG);
1343         /* Try to clear LOCK, Set START, save everything else */
1344         value = (value & ~ 0x02) | 0x01 ;
1345         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1346         lm85_write_value(client, LM85_REG_CONFIG, value);
1347 }
1348
1349 static struct lm85_data *lm85_update_device(struct device *dev)
1350 {
1351         struct i2c_client *client = to_i2c_client(dev);
1352         struct lm85_data *data = i2c_get_clientdata(client);
1353         int i;
1354
1355         down(&data->update_lock);
1356
1357         if ( !data->valid ||
1358              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1359                 /* Things that change quickly */
1360                 dev_dbg(&client->dev, "Reading sensor values\n");
1361
1362                 /* Have to read extended bits first to "freeze" the
1363                  * more significant bits that are read later.
1364                  */
1365                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1366                         int ext1 = lm85_read_value(client,
1367                                                    ADM1027_REG_EXTEND_ADC1);
1368                         int ext2 =  lm85_read_value(client,
1369                                                     ADM1027_REG_EXTEND_ADC2);
1370                         int val = (ext1 << 8) + ext2;
1371
1372                         for(i = 0; i <= 4; i++)
1373                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1374
1375                         for(i = 0; i <= 2; i++)
1376                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1377                 }
1378
1379                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1380                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1381                    other chips ext is always 0 and the value of scale is
1382                    irrelevant. So it is left in 4*/
1383                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1384
1385                 for (i = 0; i <= 4; ++i) {
1386                         data->in[i] =
1387                             lm85_read_value(client, LM85_REG_IN(i));
1388                 }
1389
1390                 for (i = 0; i <= 3; ++i) {
1391                         data->fan[i] =
1392                             lm85_read_value(client, LM85_REG_FAN(i));
1393                 }
1394
1395                 for (i = 0; i <= 2; ++i) {
1396                         data->temp[i] =
1397                             lm85_read_value(client, LM85_REG_TEMP(i));
1398                 }
1399
1400                 for (i = 0; i <= 2; ++i) {
1401                         data->pwm[i] =
1402                             lm85_read_value(client, LM85_REG_PWM(i));
1403                 }
1404
1405                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1406
1407                 if ( data->type == adt7463 ) {
1408                         if( data->therm_total < ULONG_MAX - 256 ) {
1409                             data->therm_total +=
1410                                 lm85_read_value(client, ADT7463_REG_THERM );
1411                         }
1412                 } else if ( data->type == emc6d100 ) {
1413                         /* Three more voltage sensors */
1414                         for (i = 5; i <= 7; ++i) {
1415                                 data->in[i] =
1416                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1417                         }
1418                         /* More alarm bits */
1419                         data->alarms |=
1420                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1421                 } else if (data->type == emc6d102 ) {
1422                         /* Have to read LSB bits after the MSB ones because
1423                            the reading of the MSB bits has frozen the
1424                            LSBs (backward from the ADM1027).
1425                          */
1426                         int ext1 = lm85_read_value(client,
1427                                                    EMC6D102_REG_EXTEND_ADC1);
1428                         int ext2 = lm85_read_value(client,
1429                                                    EMC6D102_REG_EXTEND_ADC2);
1430                         int ext3 = lm85_read_value(client,
1431                                                    EMC6D102_REG_EXTEND_ADC3);
1432                         int ext4 = lm85_read_value(client,
1433                                                    EMC6D102_REG_EXTEND_ADC4);
1434                         data->in_ext[0] = ext3 & 0x0f;
1435                         data->in_ext[1] = ext4 & 0x0f;
1436                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1437                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1438                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1439
1440                         data->temp_ext[0] = ext1 & 0x0f;
1441                         data->temp_ext[1] = ext2 & 0x0f;
1442                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1443                 }
1444
1445                 data->last_reading = jiffies ;
1446         };  /* last_reading */
1447
1448         if ( !data->valid ||
1449              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1450                 /* Things that don't change often */
1451                 dev_dbg(&client->dev, "Reading config values\n");
1452
1453                 for (i = 0; i <= 4; ++i) {
1454                         data->in_min[i] =
1455                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1456                         data->in_max[i] =
1457                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1458                 }
1459
1460                 if ( data->type == emc6d100 ) {
1461                         for (i = 5; i <= 7; ++i) {
1462                                 data->in_min[i] =
1463                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1464                                 data->in_max[i] =
1465                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1466                         }
1467                 }
1468
1469                 for (i = 0; i <= 3; ++i) {
1470                         data->fan_min[i] =
1471                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1472                 }
1473
1474                 for (i = 0; i <= 2; ++i) {
1475                         data->temp_min[i] =
1476                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1477                         data->temp_max[i] =
1478                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1479                 }
1480
1481                 data->vid = lm85_read_value(client, LM85_REG_VID);
1482
1483                 for (i = 0; i <= 2; ++i) {
1484                         int val ;
1485                         data->autofan[i].config =
1486                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1487                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1488                         data->autofan[i].freq = val & 0x07 ;
1489                         data->zone[i].range = (val >> 4) & 0x0f ;
1490                         data->autofan[i].min_pwm =
1491                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1492                         data->zone[i].limit =
1493                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1494                         data->zone[i].critical =
1495                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1496                 }
1497
1498                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1499                 data->smooth[0] = i & 0x0f ;
1500                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1501                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1502                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1503                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1504                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1505                 data->smooth[1] = (i>>4) & 0x0f ;
1506                 data->smooth[2] = i & 0x0f ;
1507
1508                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1509                 data->zone[0].hyst = (i>>4) & 0x0f ;
1510                 data->zone[1].hyst = i & 0x0f ;
1511
1512                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1513                 data->zone[2].hyst = (i>>4) & 0x0f ;
1514
1515                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1516                         data->tach_mode = lm85_read_value(client,
1517                                 LM85_REG_TACH_MODE );
1518                         data->spinup_ctl = lm85_read_value(client,
1519                                 LM85_REG_SPINUP_CTL );
1520                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1521                         if ( data->type == adt7463 ) {
1522                                 for (i = 0; i <= 2; ++i) {
1523                                     data->oppoint[i] = lm85_read_value(client,
1524                                         ADT7463_REG_OPPOINT(i) );
1525                                 }
1526                                 data->tmin_ctl = lm85_read_value(client,
1527                                         ADT7463_REG_TMIN_CTL1 );
1528                                 data->therm_limit = lm85_read_value(client,
1529                                         ADT7463_REG_THERM_LIMIT );
1530                         }
1531                         for (i = 0; i <= 2; ++i) {
1532                             data->temp_offset[i] = lm85_read_value(client,
1533                                 ADM1027_REG_TEMP_OFFSET(i) );
1534                         }
1535                         data->tach_mode = lm85_read_value(client,
1536                                 ADM1027_REG_CONFIG3 );
1537                         data->fan_ppr = lm85_read_value(client,
1538                                 ADM1027_REG_FAN_PPR );
1539                 }
1540
1541                 data->last_config = jiffies;
1542         };  /* last_config */
1543
1544         data->valid = 1;
1545
1546         up(&data->update_lock);
1547
1548         return data;
1549 }
1550
1551
1552 static int __init sm_lm85_init(void)
1553 {
1554         return i2c_add_driver(&lm85_driver);
1555 }
1556
1557 static void  __exit sm_lm85_exit(void)
1558 {
1559         i2c_del_driver(&lm85_driver);
1560 }
1561
1562 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1563  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1564  *     post 2.7.0 CVS changes.
1565  */
1566 MODULE_LICENSE("GPL");
1567 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1568 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1569
1570 module_init(sm_lm85_init);
1571 module_exit(sm_lm85_exit);