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

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