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         .driver = {
 384                 .name   = "lm85",
 385         },
 386         .id             = I2C_DRIVERID_LM85,
 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         int vid;
 447
 448         if (data->type == adt7463 && (data->vid & 0x80)) {
 449                 /* 6-pin VID (VRM 10) */
 450                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
 451         } else {
 452                 /* 5-pin VID (VRM 9) */
 453                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
 454         }
 455
 456         return sprintf(buf, "%d\n", vid);
 457 }
 458
 459 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 460
 461 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 462 {
 463         struct lm85_data *data = lm85_update_device(dev);
 464         return sprintf(buf, "%ld\n", (long) data->vrm);
 465 }
 466
 467 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 468 {
 469         struct i2c_client *client = to_i2c_client(dev);
 470         struct lm85_data *data = i2c_get_clientdata(client);
 471         u32 val;
 472
 473         val = simple_strtoul(buf, NULL, 10);
 474         data->vrm = val;
 475         return count;
 476 }
 477
 478 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 479
 480 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 481 {
 482         struct lm85_data *data = lm85_update_device(dev);
 483         return sprintf(buf, "%u\n", data->alarms);
 484 }
 485
 486 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 487
 488 /* pwm */
 489
 490 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
 491 {
 492         struct lm85_data *data = lm85_update_device(dev);
 493         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 494 }
 495 static ssize_t set_pwm(struct device *dev, const char *buf,
 496                 size_t count, int nr)
 497 {
 498         struct i2c_client *client = to_i2c_client(dev);
 499         struct lm85_data *data = i2c_get_clientdata(client);
 500         long val = simple_strtol(buf, NULL, 10);
 501
 502         down(&data->update_lock);
 503         data->pwm[nr] = PWM_TO_REG(val);
 504         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 505         up(&data->update_lock);
 506         return count;
 507 }
 508 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
 509 {
 510         struct lm85_data *data = lm85_update_device(dev);
 511         int     pwm_zone;
 512
 513         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 514         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 515 }
 516
 517 #define show_pwm_reg(offset)                                            \
 518 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 519 {                                                                       \
 520         return show_pwm(dev, buf, offset - 1);                          \
 521 }                                                                       \
 522 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
 523                                  const char *buf, size_t count)         \
 524 {                                                                       \
 525         return set_pwm(dev, buf, count, offset - 1);                    \
 526 }                                                                       \
 527 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
 528 {                                                                       \
 529         return show_pwm_enable(dev, buf, offset - 1);                   \
 530 }                                                                       \
 531 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
 532                 show_pwm_##offset, set_pwm_##offset);                   \
 533 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
 534                 show_pwm_enable##offset, NULL);
 535
 536 show_pwm_reg(1);
 537 show_pwm_reg(2);
 538 show_pwm_reg(3);
 539
 540 /* Voltages */
 541
 542 static ssize_t show_in(struct device *dev, char *buf, int nr)
 543 {
 544         struct lm85_data *data = lm85_update_device(dev);
 545         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 546                                                      data->in[nr],
 547                                                      data->in_ext[nr],
 548                                                      data->adc_scale) );
 549 }
 550 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
 551 {
 552         struct lm85_data *data = lm85_update_device(dev);
 553         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 554 }
 555 static ssize_t set_in_min(struct device *dev, const char *buf,
 556                 size_t count, int nr)
 557 {
 558         struct i2c_client *client = to_i2c_client(dev);
 559         struct lm85_data *data = i2c_get_clientdata(client);
 560         long val = simple_strtol(buf, NULL, 10);
 561
 562         down(&data->update_lock);
 563         data->in_min[nr] = INS_TO_REG(nr, val);
 564         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 565         up(&data->update_lock);
 566         return count;
 567 }
 568 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
 569 {
 570         struct lm85_data *data = lm85_update_device(dev);
 571         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 572 }
 573 static ssize_t set_in_max(struct device *dev, const char *buf,
 574                 size_t count, int nr)
 575 {
 576         struct i2c_client *client = to_i2c_client(dev);
 577         struct lm85_data *data = i2c_get_clientdata(client);
 578         long val = simple_strtol(buf, NULL, 10);
 579
 580         down(&data->update_lock);
 581         data->in_max[nr] = INS_TO_REG(nr, val);
 582         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 583         up(&data->update_lock);
 584         return count;
 585 }
 586 #define show_in_reg(offset)                                             \
 587 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
 588 {                                                                       \
 589         return show_in(dev, buf, offset);                               \
 590 }                                                                       \
 591 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
 592 {                                                                       \
 593         return show_in_min(dev, buf, offset);                           \
 594 }                                                                       \
 595 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
 596 {                                                                       \
 597         return show_in_max(dev, buf, offset);                           \
 598 }                                                                       \
 599 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
 600         const char *buf, size_t count)                                  \
 601 {                                                                       \
 602         return set_in_min(dev, buf, count, offset);                     \
 603 }                                                                       \
 604 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
 605         const char *buf, size_t count)                                  \
 606 {                                                                       \
 607         return set_in_max(dev, buf, count, offset);                     \
 608 }                                                                       \
 609 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
 610                 NULL);                                                  \
 611 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
 612                 show_in_##offset##_min, set_in_##offset##_min);         \
 613 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
 614                 show_in_##offset##_max, set_in_##offset##_max);
 615
 616 show_in_reg(0);
 617 show_in_reg(1);
 618 show_in_reg(2);
 619 show_in_reg(3);
 620 show_in_reg(4);
 621
 622 /* Temps */
 623
 624 static ssize_t show_temp(struct device *dev, char *buf, int nr)
 625 {
 626         struct lm85_data *data = lm85_update_device(dev);
 627         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 628                                                     data->temp_ext[nr],
 629                                                     data->adc_scale) );
 630 }
 631 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
 632 {
 633         struct lm85_data *data = lm85_update_device(dev);
 634         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 635 }
 636 static ssize_t set_temp_min(struct device *dev, const char *buf,
 637                 size_t count, int nr)
 638 {
 639         struct i2c_client *client = to_i2c_client(dev);
 640         struct lm85_data *data = i2c_get_clientdata(client);
 641         long val = simple_strtol(buf, NULL, 10);
 642
 643         down(&data->update_lock);
 644         data->temp_min[nr] = TEMP_TO_REG(val);
 645         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 646         up(&data->update_lock);
 647         return count;
 648 }
 649 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
 650 {
 651         struct lm85_data *data = lm85_update_device(dev);
 652         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 653 }
 654 static ssize_t set_temp_max(struct device *dev, const char *buf,
 655                 size_t count, int nr)
 656 {
 657         struct i2c_client *client = to_i2c_client(dev);
 658         struct lm85_data *data = i2c_get_clientdata(client);
 659         long val = simple_strtol(buf, NULL, 10);
 660
 661         down(&data->update_lock);
 662         data->temp_max[nr] = TEMP_TO_REG(val);
 663         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 664         up(&data->update_lock);
 665         return count;
 666 }
 667 #define show_temp_reg(offset)                                           \
 668 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
 669 {                                                                       \
 670         return show_temp(dev, buf, offset - 1);                         \
 671 }                                                                       \
 672 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
 673 {                                                                       \
 674         return show_temp_min(dev, buf, offset - 1);                     \
 675 }                                                                       \
 676 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
 677 {                                                                       \
 678         return show_temp_max(dev, buf, offset - 1);                     \
 679 }                                                                       \
 680 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
 681         const char *buf, size_t count)                                  \
 682 {                                                                       \
 683         return set_temp_min(dev, buf, count, offset - 1);               \
 684 }                                                                       \
 685 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
 686         const char *buf, size_t count)                                  \
 687 {                                                                       \
 688         return set_temp_max(dev, buf, count, offset - 1);               \
 689 }                                                                       \
 690 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
 691                 NULL);                                                  \
 692 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
 693                 show_temp_##offset##_min, set_temp_##offset##_min);     \
 694 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
 695                 show_temp_##offset##_max, set_temp_##offset##_max);
 696
 697 show_temp_reg(1);
 698 show_temp_reg(2);
 699 show_temp_reg(3);
 700
 701
 702 /* Automatic PWM control */
 703
 704 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
 705 {
 706         struct lm85_data *data = lm85_update_device(dev);
 707         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 708 }
 709 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
 710         size_t count, int nr)
 711 {
 712         struct i2c_client *client = to_i2c_client(dev);
 713         struct lm85_data *data = i2c_get_clientdata(client);
 714         long val = simple_strtol(buf, NULL, 10);
 715
 716         down(&data->update_lock);
 717         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 718                 | ZONE_TO_REG(val) ;
 719         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 720                 data->autofan[nr].config);
 721         up(&data->update_lock);
 722         return count;
 723 }
 724 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
 725 {
 726         struct lm85_data *data = lm85_update_device(dev);
 727         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 728 }
 729 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
 730         size_t count, int nr)
 731 {
 732         struct i2c_client *client = to_i2c_client(dev);
 733         struct lm85_data *data = i2c_get_clientdata(client);
 734         long val = simple_strtol(buf, NULL, 10);
 735
 736         down(&data->update_lock);
 737         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 738         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 739                 data->autofan[nr].min_pwm);
 740         up(&data->update_lock);
 741         return count;
 742 }
 743 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
 744 {
 745         struct lm85_data *data = lm85_update_device(dev);
 746         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 747 }
 748 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
 749         size_t count, int nr)
 750 {
 751         struct i2c_client *client = to_i2c_client(dev);
 752         struct lm85_data *data = i2c_get_clientdata(client);
 753         long val = simple_strtol(buf, NULL, 10);
 754
 755         down(&data->update_lock);
 756         data->autofan[nr].min_off = val;
 757         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 758                 | data->syncpwm3
 759                 | (data->autofan[0].min_off ? 0x20 : 0)
 760                 | (data->autofan[1].min_off ? 0x40 : 0)
 761                 | (data->autofan[2].min_off ? 0x80 : 0)
 762         );
 763         up(&data->update_lock);
 764         return count;
 765 }
 766 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
 767 {
 768         struct lm85_data *data = lm85_update_device(dev);
 769         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 770 }
 771 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
 772                 size_t count, int nr)
 773 {
 774         struct i2c_client *client = to_i2c_client(dev);
 775         struct lm85_data *data = i2c_get_clientdata(client);
 776         long val = simple_strtol(buf, NULL, 10);
 777
 778         down(&data->update_lock);
 779         data->autofan[nr].freq = FREQ_TO_REG(val);
 780         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 781                 (data->zone[nr].range << 4)
 782                 | data->autofan[nr].freq
 783         );
 784         up(&data->update_lock);
 785         return count;
 786 }
 787 #define pwm_auto(offset)                                                \
 788 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
 789         char *buf)                                                      \
 790 {                                                                       \
 791         return show_pwm_auto_channels(dev, buf, offset - 1);            \
 792 }                                                                       \
 793 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
 794         const char *buf, size_t count)                                  \
 795 {                                                                       \
 796         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
 797 }                                                                       \
 798 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
 799         char *buf)                                                      \
 800 {                                                                       \
 801         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
 802 }                                                                       \
 803 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
 804         const char *buf, size_t count)                                  \
 805 {                                                                       \
 806         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
 807 }                                                                       \
 808 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
 809         char *buf)                                                      \
 810 {                                                                       \
 811         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
 812 }                                                                       \
 813 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
 814         const char *buf, size_t count)                                  \
 815 {                                                                       \
 816         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
 817 }                                                                       \
 818 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
 819         char *buf)                                                      \
 820 {                                                                       \
 821         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
 822 }                                                                       \
 823 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
 824         const char *buf, size_t count)                                  \
 825 {                                                                       \
 826         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
 827 }                                                                       \
 828 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
 829                 show_pwm##offset##_auto_channels,                       \
 830                 set_pwm##offset##_auto_channels);                       \
 831 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
 832                 show_pwm##offset##_auto_pwm_min,                        \
 833                 set_pwm##offset##_auto_pwm_min);                        \
 834 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
 835                 show_pwm##offset##_auto_pwm_minctl,                     \
 836                 set_pwm##offset##_auto_pwm_minctl);                     \
 837 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
 838                 show_pwm##offset##_auto_pwm_freq,                       \
 839                 set_pwm##offset##_auto_pwm_freq);
 840 pwm_auto(1);
 841 pwm_auto(2);
 842 pwm_auto(3);
 843
 844 /* Temperature settings for automatic PWM control */
 845
 846 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
 847 {
 848         struct lm85_data *data = lm85_update_device(dev);
 849         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 850                 HYST_FROM_REG(data->zone[nr].hyst));
 851 }
 852 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
 853         size_t count, int nr)
 854 {
 855         struct i2c_client *client = to_i2c_client(dev);
 856         struct lm85_data *data = i2c_get_clientdata(client);
 857         int min;
 858         long val = simple_strtol(buf, NULL, 10);
 859
 860         down(&data->update_lock);
 861         min = TEMP_FROM_REG(data->zone[nr].limit);
 862         data->zone[nr].off_desired = TEMP_TO_REG(val);
 863         data->zone[nr].hyst = HYST_TO_REG(min - val);
 864         if ( nr == 0 || nr == 1 ) {
 865                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 866                         (data->zone[0].hyst << 4)
 867                         | data->zone[1].hyst
 868                         );
 869         } else {
 870                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 871                         (data->zone[2].hyst << 4)
 872                 );
 873         }
 874         up(&data->update_lock);
 875         return count;
 876 }
 877 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
 878 {
 879         struct lm85_data *data = lm85_update_device(dev);
 880         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 881 }
 882 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
 883         size_t count, int nr)
 884 {
 885         struct i2c_client *client = to_i2c_client(dev);
 886         struct lm85_data *data = i2c_get_clientdata(client);
 887         long val = simple_strtol(buf, NULL, 10);
 888
 889         down(&data->update_lock);
 890         data->zone[nr].limit = TEMP_TO_REG(val);
 891         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 892                 data->zone[nr].limit);
 893
 894 /* Update temp_auto_max and temp_auto_range */
 895         data->zone[nr].range = RANGE_TO_REG(
 896                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 897                 TEMP_FROM_REG(data->zone[nr].limit));
 898         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 899                 ((data->zone[nr].range & 0x0f) << 4)
 900                 | (data->autofan[nr].freq & 0x07));
 901
 902 /* Update temp_auto_hyst and temp_auto_off */
 903         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 904                 data->zone[nr].limit) - TEMP_FROM_REG(
 905                 data->zone[nr].off_desired));
 906         if ( nr == 0 || nr == 1 ) {
 907                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 908                         (data->zone[0].hyst << 4)
 909                         | data->zone[1].hyst
 910                         );
 911         } else {
 912                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 913                         (data->zone[2].hyst << 4)
 914                 );
 915         }
 916         up(&data->update_lock);
 917         return count;
 918 }
 919 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
 920 {
 921         struct lm85_data *data = lm85_update_device(dev);
 922         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 923                 RANGE_FROM_REG(data->zone[nr].range));
 924 }
 925 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
 926         size_t count, int nr)
 927 {
 928         struct i2c_client *client = to_i2c_client(dev);
 929         struct lm85_data *data = i2c_get_clientdata(client);
 930         int min;
 931         long val = simple_strtol(buf, NULL, 10);
 932
 933         down(&data->update_lock);
 934         min = TEMP_FROM_REG(data->zone[nr].limit);
 935         data->zone[nr].max_desired = TEMP_TO_REG(val);
 936         data->zone[nr].range = RANGE_TO_REG(
 937                 val - min);
 938         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 939                 ((data->zone[nr].range & 0x0f) << 4)
 940                 | (data->autofan[nr].freq & 0x07));
 941         up(&data->update_lock);
 942         return count;
 943 }
 944 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
 945 {
 946         struct lm85_data *data = lm85_update_device(dev);
 947         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 948 }
 949 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
 950                 size_t count, int nr)
 951 {
 952         struct i2c_client *client = to_i2c_client(dev);
 953         struct lm85_data *data = i2c_get_clientdata(client);
 954         long val = simple_strtol(buf, NULL, 10);
 955
 956         down(&data->update_lock);
 957         data->zone[nr].critical = TEMP_TO_REG(val);
 958         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 959                 data->zone[nr].critical);
 960         up(&data->update_lock);
 961         return count;
 962 }
 963 #define temp_auto(offset)                                               \
 964 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
 965         char *buf)                                                      \
 966 {                                                                       \
 967         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
 968 }                                                                       \
 969 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
 970         const char *buf, size_t count)                                  \
 971 {                                                                       \
 972         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
 973 }                                                                       \
 974 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
 975         char *buf)                                                      \
 976 {                                                                       \
 977         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
 978 }                                                                       \
 979 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
 980         const char *buf, size_t count)                                  \
 981 {                                                                       \
 982         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
 983 }                                                                       \
 984 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
 985         char *buf)                                                      \
 986 {                                                                       \
 987         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
 988 }                                                                       \
 989 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
 990         const char *buf, size_t count)                                  \
 991 {                                                                       \
 992         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
 993 }                                                                       \
 994 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
 995         char *buf)                                                      \
 996 {                                                                       \
 997         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
 998 }                                                                       \
 999 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
1000         const char *buf, size_t count)                                  \
1001 {                                                                       \
1002         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
1003 }                                                                       \
1004 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
1005                 show_temp##offset##_auto_temp_off,                      \
1006                 set_temp##offset##_auto_temp_off);                      \
1007 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
1008                 show_temp##offset##_auto_temp_min,                      \
1009                 set_temp##offset##_auto_temp_min);                      \
1010 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1011                 show_temp##offset##_auto_temp_max,                      \
1012                 set_temp##offset##_auto_temp_max);                      \
1013 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1014                 show_temp##offset##_auto_temp_crit,                     \
1015                 set_temp##offset##_auto_temp_crit);
1016 temp_auto(1);
1017 temp_auto(2);
1018 temp_auto(3);
1019
1020 static int lm85_attach_adapter(struct i2c_adapter *adapter)
1021 {
1022         if (!(adapter->class & I2C_CLASS_HWMON))
1023                 return 0;
1024         return i2c_probe(adapter, &addr_data, lm85_detect);
1025 }
1026
1027 static int lm85_detect(struct i2c_adapter *adapter, int address,
1028                 int kind)
1029 {
1030         int company, verstep ;
1031         struct i2c_client *new_client = NULL;
1032         struct lm85_data *data;
1033         int err = 0;
1034         const char *type_name = "";
1035
1036         if (!i2c_check_functionality(adapter,
1037                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1038                 /* We need to be able to do byte I/O */
1039                 goto ERROR0 ;
1040         };
1041
1042         /* OK. For now, we presume we have a valid client. We now create the
1043            client structure, even though we cannot fill it completely yet.
1044            But it allows us to access lm85_{read,write}_value. */
1045
1046         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1047                 err = -ENOMEM;
1048                 goto ERROR0;
1049         }
1050
1051         new_client = &data->client;
1052         i2c_set_clientdata(new_client, data);
1053         new_client->addr = address;
1054         new_client->adapter = adapter;
1055         new_client->driver = &lm85_driver;
1056         new_client->flags = 0;
1057
1058         /* Now, we do the remaining detection. */
1059
1060         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1061         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1062
1063         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1064                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1065                 i2c_adapter_id(new_client->adapter), new_client->addr,
1066                 company, verstep);
1067
1068         /* If auto-detecting, Determine the chip type. */
1069         if (kind <= 0) {
1070                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1071                         i2c_adapter_id(adapter), address );
1072                 if( company == LM85_COMPANY_NATIONAL
1073                     && verstep == LM85_VERSTEP_LM85C ) {
1074                         kind = lm85c ;
1075                 } else if( company == LM85_COMPANY_NATIONAL
1076                     && verstep == LM85_VERSTEP_LM85B ) {
1077                         kind = lm85b ;
1078                 } else if( company == LM85_COMPANY_NATIONAL
1079                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1080                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1081                                 " Defaulting to LM85.\n", verstep);
1082                         kind = any_chip ;
1083                 } else if( company == LM85_COMPANY_ANALOG_DEV
1084                     && verstep == LM85_VERSTEP_ADM1027 ) {
1085                         kind = adm1027 ;
1086                 } else if( company == LM85_COMPANY_ANALOG_DEV
1087                     && (verstep == LM85_VERSTEP_ADT7463
1088                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1089                         kind = adt7463 ;
1090                 } else if( company == LM85_COMPANY_ANALOG_DEV
1091                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1092                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1093                                 " Defaulting to Generic LM85.\n", verstep );
1094                         kind = any_chip ;
1095                 } else if( company == LM85_COMPANY_SMSC
1096                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1097                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1098                         /* Unfortunately, we can't tell a '100 from a '101
1099                          * from the registers.  Since a '101 is a '100
1100                          * in a package with fewer pins and therefore no
1101                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1102                          * inputs read 0, then it's a '101.
1103                          */
1104                         kind = emc6d100 ;
1105                 } else if( company == LM85_COMPANY_SMSC
1106                     && verstep == LM85_VERSTEP_EMC6D102) {
1107                         kind = emc6d102 ;
1108                 } else if( company == LM85_COMPANY_SMSC
1109                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1110                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1111                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1112                             " Defaulting to Generic LM85.\n", verstep );
1113                         kind = any_chip ;
1114                 } else if( kind == any_chip
1115                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1116                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1117                         /* Leave kind as "any_chip" */
1118                 } else {
1119                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1120                         /* Not an LM85 ... */
1121                         if( kind == any_chip ) {  /* User used force=x,y */
1122                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1123                                         " found at %d,0x%02x. Try force_lm85c.\n",
1124                                         i2c_adapter_id(adapter), address );
1125                         }
1126                         err = 0 ;
1127                         goto ERROR1;
1128                 }
1129         }
1130
1131         /* Fill in the chip specific driver values */
1132         if ( kind == any_chip ) {
1133                 type_name = "lm85";
1134         } else if ( kind == lm85b ) {
1135                 type_name = "lm85b";
1136         } else if ( kind == lm85c ) {
1137                 type_name = "lm85c";
1138         } else if ( kind == adm1027 ) {
1139                 type_name = "adm1027";
1140         } else if ( kind == adt7463 ) {
1141                 type_name = "adt7463";
1142         } else if ( kind == emc6d100){
1143                 type_name = "emc6d100";
1144         } else if ( kind == emc6d102 ) {
1145                 type_name = "emc6d102";
1146         }
1147         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1148
1149         /* Fill in the remaining client fields */
1150         data->type = kind;
1151         data->valid = 0;
1152         init_MUTEX(&data->update_lock);
1153
1154         /* Tell the I2C layer a new client has arrived */
1155         if ((err = i2c_attach_client(new_client)))
1156                 goto ERROR1;
1157
1158         /* Set the VRM version */
1159         data->vrm = vid_which_vrm();
1160
1161         /* Initialize the LM85 chip */
1162         lm85_init_client(new_client);
1163
1164         /* Register sysfs hooks */
1165         data->class_dev = hwmon_device_register(&new_client->dev);
1166         if (IS_ERR(data->class_dev)) {
1167                 err = PTR_ERR(data->class_dev);
1168                 goto ERROR2;
1169         }
1170
1171         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1172         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1173         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1174         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1175         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1176         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1177         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1178         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1179         device_create_file(&new_client->dev, &dev_attr_pwm1);
1180         device_create_file(&new_client->dev, &dev_attr_pwm2);
1181         device_create_file(&new_client->dev, &dev_attr_pwm3);
1182         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1183         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1184         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1185         device_create_file(&new_client->dev, &dev_attr_in0_input);
1186         device_create_file(&new_client->dev, &dev_attr_in1_input);
1187         device_create_file(&new_client->dev, &dev_attr_in2_input);
1188         device_create_file(&new_client->dev, &dev_attr_in3_input);
1189         device_create_file(&new_client->dev, &dev_attr_in0_min);
1190         device_create_file(&new_client->dev, &dev_attr_in1_min);
1191         device_create_file(&new_client->dev, &dev_attr_in2_min);
1192         device_create_file(&new_client->dev, &dev_attr_in3_min);
1193         device_create_file(&new_client->dev, &dev_attr_in0_max);
1194         device_create_file(&new_client->dev, &dev_attr_in1_max);
1195         device_create_file(&new_client->dev, &dev_attr_in2_max);
1196         device_create_file(&new_client->dev, &dev_attr_in3_max);
1197         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1198         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1199         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1200         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1201         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1202         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1203         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1204         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1205         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1206         device_create_file(&new_client->dev, &dev_attr_vrm);
1207         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1208         device_create_file(&new_client->dev, &dev_attr_alarms);
1209         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1210         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1211         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1212         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1213         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1214         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1215         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1216         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1217         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1218         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1219         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1220         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1221         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1222         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1223         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1224         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1225         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1226         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1227         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1228         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1229         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1230         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1231         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1232         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1233
1234         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1235            as a sixth digital VID input rather than an analog input. */
1236         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1237         if (!(kind == adt7463 && (data->vid & 0x80))) {
1238                 device_create_file(&new_client->dev, &dev_attr_in4_input);
1239                 device_create_file(&new_client->dev, &dev_attr_in4_min);
1240                 device_create_file(&new_client->dev, &dev_attr_in4_max);
1241         }
1242
1243         return 0;
1244
1245         /* Error out and cleanup code */
1246     ERROR2:
1247         i2c_detach_client(new_client);
1248     ERROR1:
1249         kfree(data);
1250     ERROR0:
1251         return err;
1252 }
1253
1254 static int lm85_detach_client(struct i2c_client *client)
1255 {
1256         struct lm85_data *data = i2c_get_clientdata(client);
1257         hwmon_device_unregister(data->class_dev);
1258         i2c_detach_client(client);
1259         kfree(data);
1260         return 0;
1261 }
1262
1263
1264 static int lm85_read_value(struct i2c_client *client, u8 reg)
1265 {
1266         int res;
1267
1268         /* What size location is it? */
1269         switch( reg ) {
1270         case LM85_REG_FAN(0) :  /* Read WORD data */
1271         case LM85_REG_FAN(1) :
1272         case LM85_REG_FAN(2) :
1273         case LM85_REG_FAN(3) :
1274         case LM85_REG_FAN_MIN(0) :
1275         case LM85_REG_FAN_MIN(1) :
1276         case LM85_REG_FAN_MIN(2) :
1277         case LM85_REG_FAN_MIN(3) :
1278         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1279                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1280                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1281                 break ;
1282         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1283                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1284                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1285                 break ;
1286         default:        /* Read BYTE data */
1287                 res = i2c_smbus_read_byte_data(client, reg);
1288                 break ;
1289         }
1290
1291         return res ;
1292 }
1293
1294 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1295 {
1296         int res ;
1297
1298         switch( reg ) {
1299         case LM85_REG_FAN(0) :  /* Write WORD data */
1300         case LM85_REG_FAN(1) :
1301         case LM85_REG_FAN(2) :
1302         case LM85_REG_FAN(3) :
1303         case LM85_REG_FAN_MIN(0) :
1304         case LM85_REG_FAN_MIN(1) :
1305         case LM85_REG_FAN_MIN(2) :
1306         case LM85_REG_FAN_MIN(3) :
1307         /* NOTE: ALARM is read only, so not included here */
1308                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1309                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1310                 break ;
1311         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1312                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1313                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1314                 break ;
1315         default:        /* Write BYTE data */
1316                 res = i2c_smbus_write_byte_data(client, reg, value);
1317                 break ;
1318         }
1319
1320         return res ;
1321 }
1322
1323 static void lm85_init_client(struct i2c_client *client)
1324 {
1325         int value;
1326         struct lm85_data *data = i2c_get_clientdata(client);
1327
1328         dev_dbg(&client->dev, "Initializing device\n");
1329
1330         /* Warn if part was not "READY" */
1331         value = lm85_read_value(client, LM85_REG_CONFIG);
1332         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1333         if( value & 0x02 ) {
1334                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1335                             i2c_adapter_id(client->adapter), client->addr );
1336         };
1337         if( ! (value & 0x04) ) {
1338                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1339                             i2c_adapter_id(client->adapter), client->addr );
1340         };
1341         if( value & 0x10
1342             && ( data->type == adm1027
1343                 || data->type == adt7463 ) ) {
1344                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1345                         "Please report this to the lm85 maintainer.\n",
1346                             i2c_adapter_id(client->adapter), client->addr );
1347         };
1348
1349         /* WE INTENTIONALLY make no changes to the limits,
1350          *   offsets, pwms, fans and zones.  If they were
1351          *   configured, we don't want to mess with them.
1352          *   If they weren't, the default is 100% PWM, no
1353          *   control and will suffice until 'sensors -s'
1354          *   can be run by the user.
1355          */
1356
1357         /* Start monitoring */
1358         value = lm85_read_value(client, LM85_REG_CONFIG);
1359         /* Try to clear LOCK, Set START, save everything else */
1360         value = (value & ~ 0x02) | 0x01 ;
1361         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1362         lm85_write_value(client, LM85_REG_CONFIG, value);
1363 }
1364
1365 static struct lm85_data *lm85_update_device(struct device *dev)
1366 {
1367         struct i2c_client *client = to_i2c_client(dev);
1368         struct lm85_data *data = i2c_get_clientdata(client);
1369         int i;
1370
1371         down(&data->update_lock);
1372
1373         if ( !data->valid ||
1374              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1375                 /* Things that change quickly */
1376                 dev_dbg(&client->dev, "Reading sensor values\n");
1377
1378                 /* Have to read extended bits first to "freeze" the
1379                  * more significant bits that are read later.
1380                  */
1381                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1382                         int ext1 = lm85_read_value(client,
1383                                                    ADM1027_REG_EXTEND_ADC1);
1384                         int ext2 =  lm85_read_value(client,
1385                                                     ADM1027_REG_EXTEND_ADC2);
1386                         int val = (ext1 << 8) + ext2;
1387
1388                         for(i = 0; i <= 4; i++)
1389                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1390
1391                         for(i = 0; i <= 2; i++)
1392                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1393                 }
1394
1395                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1396                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1397                    other chips ext is always 0 and the value of scale is
1398                    irrelevant. So it is left in 4*/
1399                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1400
1401                 data->vid = lm85_read_value(client, LM85_REG_VID);
1402
1403                 for (i = 0; i <= 3; ++i) {
1404                         data->in[i] =
1405                             lm85_read_value(client, LM85_REG_IN(i));
1406                 }
1407
1408                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1409                         data->in[4] = lm85_read_value(client,
1410                                       LM85_REG_IN(4));
1411                 }
1412
1413                 for (i = 0; i <= 3; ++i) {
1414                         data->fan[i] =
1415                             lm85_read_value(client, LM85_REG_FAN(i));
1416                 }
1417
1418                 for (i = 0; i <= 2; ++i) {
1419                         data->temp[i] =
1420                             lm85_read_value(client, LM85_REG_TEMP(i));
1421                 }
1422
1423                 for (i = 0; i <= 2; ++i) {
1424                         data->pwm[i] =
1425                             lm85_read_value(client, LM85_REG_PWM(i));
1426                 }
1427
1428                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1429
1430                 if ( data->type == adt7463 ) {
1431                         if( data->therm_total < ULONG_MAX - 256 ) {
1432                             data->therm_total +=
1433                                 lm85_read_value(client, ADT7463_REG_THERM );
1434                         }
1435                 } else if ( data->type == emc6d100 ) {
1436                         /* Three more voltage sensors */
1437                         for (i = 5; i <= 7; ++i) {
1438                                 data->in[i] =
1439                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1440                         }
1441                         /* More alarm bits */
1442                         data->alarms |=
1443                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1444                 } else if (data->type == emc6d102 ) {
1445                         /* Have to read LSB bits after the MSB ones because
1446                            the reading of the MSB bits has frozen the
1447                            LSBs (backward from the ADM1027).
1448                          */
1449                         int ext1 = lm85_read_value(client,
1450                                                    EMC6D102_REG_EXTEND_ADC1);
1451                         int ext2 = lm85_read_value(client,
1452                                                    EMC6D102_REG_EXTEND_ADC2);
1453                         int ext3 = lm85_read_value(client,
1454                                                    EMC6D102_REG_EXTEND_ADC3);
1455                         int ext4 = lm85_read_value(client,
1456                                                    EMC6D102_REG_EXTEND_ADC4);
1457                         data->in_ext[0] = ext3 & 0x0f;
1458                         data->in_ext[1] = ext4 & 0x0f;
1459                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1460                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1461                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1462
1463                         data->temp_ext[0] = ext1 & 0x0f;
1464                         data->temp_ext[1] = ext2 & 0x0f;
1465                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1466                 }
1467
1468                 data->last_reading = jiffies ;
1469         };  /* last_reading */
1470
1471         if ( !data->valid ||
1472              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1473                 /* Things that don't change often */
1474                 dev_dbg(&client->dev, "Reading config values\n");
1475
1476                 for (i = 0; i <= 3; ++i) {
1477                         data->in_min[i] =
1478                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1479                         data->in_max[i] =
1480                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1481                 }
1482
1483                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1484                         data->in_min[4] = lm85_read_value(client,
1485                                           LM85_REG_IN_MIN(4));
1486                         data->in_max[4] = lm85_read_value(client,
1487                                           LM85_REG_IN_MAX(4));
1488                 }
1489
1490                 if ( data->type == emc6d100 ) {
1491                         for (i = 5; i <= 7; ++i) {
1492                                 data->in_min[i] =
1493                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1494                                 data->in_max[i] =
1495                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1496                         }
1497                 }
1498
1499                 for (i = 0; i <= 3; ++i) {
1500                         data->fan_min[i] =
1501                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1502                 }
1503
1504                 for (i = 0; i <= 2; ++i) {
1505                         data->temp_min[i] =
1506                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1507                         data->temp_max[i] =
1508                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1509                 }
1510
1511                 for (i = 0; i <= 2; ++i) {
1512                         int val ;
1513                         data->autofan[i].config =
1514                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1515                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1516                         data->autofan[i].freq = val & 0x07 ;
1517                         data->zone[i].range = (val >> 4) & 0x0f ;
1518                         data->autofan[i].min_pwm =
1519                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1520                         data->zone[i].limit =
1521                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1522                         data->zone[i].critical =
1523                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1524                 }
1525
1526                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1527                 data->smooth[0] = i & 0x0f ;
1528                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1529                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1530                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1531                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1532                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1533                 data->smooth[1] = (i>>4) & 0x0f ;
1534                 data->smooth[2] = i & 0x0f ;
1535
1536                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1537                 data->zone[0].hyst = (i>>4) & 0x0f ;
1538                 data->zone[1].hyst = i & 0x0f ;
1539
1540                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1541                 data->zone[2].hyst = (i>>4) & 0x0f ;
1542
1543                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1544                         data->tach_mode = lm85_read_value(client,
1545                                 LM85_REG_TACH_MODE );
1546                         data->spinup_ctl = lm85_read_value(client,
1547                                 LM85_REG_SPINUP_CTL );
1548                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1549                         if ( data->type == adt7463 ) {
1550                                 for (i = 0; i <= 2; ++i) {
1551                                     data->oppoint[i] = lm85_read_value(client,
1552                                         ADT7463_REG_OPPOINT(i) );
1553                                 }
1554                                 data->tmin_ctl = lm85_read_value(client,
1555                                         ADT7463_REG_TMIN_CTL1 );
1556                                 data->therm_limit = lm85_read_value(client,
1557                                         ADT7463_REG_THERM_LIMIT );
1558                         }
1559                         for (i = 0; i <= 2; ++i) {
1560                             data->temp_offset[i] = lm85_read_value(client,
1561                                 ADM1027_REG_TEMP_OFFSET(i) );
1562                         }
1563                         data->tach_mode = lm85_read_value(client,
1564                                 ADM1027_REG_CONFIG3 );
1565                         data->fan_ppr = lm85_read_value(client,
1566                                 ADM1027_REG_FAN_PPR );
1567                 }
1568
1569                 data->last_config = jiffies;
1570         };  /* last_config */
1571
1572         data->valid = 1;
1573
1574         up(&data->update_lock);
1575
1576         return data;
1577 }
1578
1579
1580 static int __init sm_lm85_init(void)
1581 {
1582         return i2c_add_driver(&lm85_driver);
1583 }
1584
1585 static void  __exit sm_lm85_exit(void)
1586 {
1587         i2c_del_driver(&lm85_driver);
1588 }
1589
1590 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1591  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1592  *     post 2.7.0 CVS changes.
1593  */
1594 MODULE_LICENSE("GPL");
1595 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1596 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1597
1598 module_init(sm_lm85_init);
1599 module_exit(sm_lm85_exit);