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/i2c-sensor.h>
  32 #include <linux/i2c-vid.h>
  33
  34 /* Addresses to scan */
  35 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
  36 static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
  37
  38 /* Insmod parameters */
  39 SENSORS_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 /* i2c-vid.h defines vid_from_reg() */
 285 #define VID_FROM_REG(val,vrm) (vid_from_reg((val),(vrm)))
 286
 287 /* Unlike some other drivers we DO NOT set initial limits.  Use
 288  * the config file to set limits.  Some users have reported
 289  * motherboards shutting down when we set limits in a previous
 290  * version of the driver.
 291  */
 292
 293 /* Chip sampling rates
 294  *
 295  * Some sensors are not updated more frequently than once per second
 296  *    so it doesn't make sense to read them more often than that.
 297  *    We cache the results and return the saved data if the driver
 298  *    is called again before a second has elapsed.
 299  *
 300  * Also, there is significant configuration data for this chip
 301  *    given the automatic PWM fan control that is possible.  There
 302  *    are about 47 bytes of config data to only 22 bytes of actual
 303  *    readings.  So, we keep the config data up to date in the cache
 304  *    when it is written and only sample it once every 1 *minute*
 305  */
 306 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
 307 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
 308
 309 /* For each registered LM85, we need to keep some data in memory. That
 310    data is pointed to by lm85_list[NR]->data. The structure itself is
 311    dynamically allocated, at the same time when a new lm85 client is
 312    allocated. */
 313
 314 /* LM85 can automatically adjust fan speeds based on temperature
 315  * This structure encapsulates an entire Zone config.  There are
 316  * three zones (one for each temperature input) on the lm85
 317  */
 318 struct lm85_zone {
 319         s8 limit;       /* Low temp limit */
 320         u8 hyst;        /* Low limit hysteresis. (0-15) */
 321         u8 range;       /* Temp range, encoded */
 322         s8 critical;    /* "All fans ON" temp limit */
 323         u8 off_desired; /* Actual "off" temperature specified.  Preserved
 324                          * to prevent "drift" as other autofan control
 325                          * values change.
 326                          */
 327         u8 max_desired; /* Actual "max" temperature specified.  Preserved
 328                          * to prevent "drift" as other autofan control
 329                          * values change.
 330                          */
 331 };
 332
 333 struct lm85_autofan {
 334         u8 config;      /* Register value */
 335         u8 freq;        /* PWM frequency, encoded */
 336         u8 min_pwm;     /* Minimum PWM value, encoded */
 337         u8 min_off;     /* Min PWM or OFF below "limit", flag */
 338 };
 339
 340 struct lm85_data {
 341         struct i2c_client client;
 342         struct semaphore lock;
 343         enum chips type;
 344
 345         struct semaphore update_lock;
 346         int valid;              /* !=0 if following fields are valid */
 347         unsigned long last_reading;     /* In jiffies */
 348         unsigned long last_config;      /* In jiffies */
 349
 350         u8 in[8];               /* Register value */
 351         u8 in_max[8];           /* Register value */
 352         u8 in_min[8];           /* Register value */
 353         s8 temp[3];             /* Register value */
 354         s8 temp_min[3];         /* Register value */
 355         s8 temp_max[3];         /* Register value */
 356         s8 temp_offset[3];      /* Register value */
 357         u16 fan[4];             /* Register value */
 358         u16 fan_min[4];         /* Register value */
 359         u8 pwm[3];              /* Register value */
 360         u8 spinup_ctl;          /* Register encoding, combined */
 361         u8 tach_mode;           /* Register encoding, combined */
 362         u8 temp_ext[3];         /* Decoded values */
 363         u8 in_ext[8];           /* Decoded values */
 364         u8 adc_scale;           /* ADC Extended bits scaling factor */
 365         u8 fan_ppr;             /* Register value */
 366         u8 smooth[3];           /* Register encoding */
 367         u8 vid;                 /* Register value */
 368         u8 vrm;                 /* VRM version */
 369         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
 370         u8 oppoint[3];          /* Register value */
 371         u16 tmin_ctl;           /* Register value */
 372         unsigned long therm_total; /* Cummulative therm count */
 373         u8 therm_limit;         /* Register value */
 374         u32 alarms;             /* Register encoding, combined */
 375         struct lm85_autofan autofan[3];
 376         struct lm85_zone zone[3];
 377 };
 378
 379 static int lm85_attach_adapter(struct i2c_adapter *adapter);
 380 static int lm85_detect(struct i2c_adapter *adapter, int address,
 381                         int kind);
 382 static int lm85_detach_client(struct i2c_client *client);
 383
 384 static int lm85_read_value(struct i2c_client *client, u8 register);
 385 static int lm85_write_value(struct i2c_client *client, u8 register, int value);
 386 static struct lm85_data *lm85_update_device(struct device *dev);
 387 static void lm85_init_client(struct i2c_client *client);
 388
 389
 390 static struct i2c_driver lm85_driver = {
 391         .owner          = THIS_MODULE,
 392         .name           = "lm85",
 393         .id             = I2C_DRIVERID_LM85,
 394         .flags          = I2C_DF_NOTIFY,
 395         .attach_adapter = lm85_attach_adapter,
 396         .detach_client  = lm85_detach_client,
 397 };
 398
 399
 400 /* 4 Fans */
 401 static ssize_t show_fan(struct device *dev, char *buf, int nr)
 402 {
 403         struct lm85_data *data = lm85_update_device(dev);
 404         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
 405 }
 406 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
 407 {
 408         struct lm85_data *data = lm85_update_device(dev);
 409         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
 410 }
 411 static ssize_t set_fan_min(struct device *dev, const char *buf,
 412                 size_t count, int nr)
 413 {
 414         struct i2c_client *client = to_i2c_client(dev);
 415         struct lm85_data *data = i2c_get_clientdata(client);
 416         long val = simple_strtol(buf, NULL, 10);
 417
 418         down(&data->update_lock);
 419         data->fan_min[nr] = FAN_TO_REG(val);
 420         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
 421         up(&data->update_lock);
 422         return count;
 423 }
 424
 425 #define show_fan_offset(offset)                                         \
 426 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 427 {                                                                       \
 428         return show_fan(dev, buf, offset - 1);                          \
 429 }                                                                       \
 430 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
 431 {                                                                       \
 432         return show_fan_min(dev, buf, offset - 1);                      \
 433 }                                                                       \
 434 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
 435         const char *buf, size_t count)                                  \
 436 {                                                                       \
 437         return set_fan_min(dev, buf, count, offset - 1);                \
 438 }                                                                       \
 439 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
 440                 NULL);                                                  \
 441 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
 442                 show_fan_##offset##_min, set_fan_##offset##_min);
 443
 444 show_fan_offset(1);
 445 show_fan_offset(2);
 446 show_fan_offset(3);
 447 show_fan_offset(4);
 448
 449 /* vid, vrm, alarms */
 450
 451 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 452 {
 453         struct lm85_data *data = lm85_update_device(dev);
 454         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 455 }
 456
 457 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 458
 459 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 460 {
 461         struct lm85_data *data = lm85_update_device(dev);
 462         return sprintf(buf, "%ld\n", (long) data->vrm);
 463 }
 464
 465 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 466 {
 467         struct i2c_client *client = to_i2c_client(dev);
 468         struct lm85_data *data = i2c_get_clientdata(client);
 469         u32 val;
 470
 471         val = simple_strtoul(buf, NULL, 10);
 472         data->vrm = val;
 473         return count;
 474 }
 475
 476 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 477
 478 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 479 {
 480         struct lm85_data *data = lm85_update_device(dev);
 481         return sprintf(buf, "%u\n", data->alarms);
 482 }
 483
 484 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 485
 486 /* pwm */
 487
 488 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
 489 {
 490         struct lm85_data *data = lm85_update_device(dev);
 491         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 492 }
 493 static ssize_t set_pwm(struct device *dev, const char *buf,
 494                 size_t count, int nr)
 495 {
 496         struct i2c_client *client = to_i2c_client(dev);
 497         struct lm85_data *data = i2c_get_clientdata(client);
 498         long val = simple_strtol(buf, NULL, 10);
 499
 500         down(&data->update_lock);
 501         data->pwm[nr] = PWM_TO_REG(val);
 502         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 503         up(&data->update_lock);
 504         return count;
 505 }
 506 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
 507 {
 508         struct lm85_data *data = lm85_update_device(dev);
 509         int     pwm_zone;
 510
 511         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 512         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 513 }
 514
 515 #define show_pwm_reg(offset)                                            \
 516 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 517 {                                                                       \
 518         return show_pwm(dev, buf, offset - 1);                          \
 519 }                                                                       \
 520 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
 521                                  const char *buf, size_t count)         \
 522 {                                                                       \
 523         return set_pwm(dev, buf, count, offset - 1);                    \
 524 }                                                                       \
 525 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
 526 {                                                                       \
 527         return show_pwm_enable(dev, buf, offset - 1);                   \
 528 }                                                                       \
 529 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
 530                 show_pwm_##offset, set_pwm_##offset);                   \
 531 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
 532                 show_pwm_enable##offset, NULL);
 533
 534 show_pwm_reg(1);
 535 show_pwm_reg(2);
 536 show_pwm_reg(3);
 537
 538 /* Voltages */
 539
 540 static ssize_t show_in(struct device *dev, char *buf, int nr)
 541 {
 542         struct lm85_data *data = lm85_update_device(dev);
 543         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 544                                                      data->in[nr],
 545                                                      data->in_ext[nr],
 546                                                      data->adc_scale) );
 547 }
 548 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
 549 {
 550         struct lm85_data *data = lm85_update_device(dev);
 551         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 552 }
 553 static ssize_t set_in_min(struct device *dev, const char *buf,
 554                 size_t count, int nr)
 555 {
 556         struct i2c_client *client = to_i2c_client(dev);
 557         struct lm85_data *data = i2c_get_clientdata(client);
 558         long val = simple_strtol(buf, NULL, 10);
 559
 560         down(&data->update_lock);
 561         data->in_min[nr] = INS_TO_REG(nr, val);
 562         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 563         up(&data->update_lock);
 564         return count;
 565 }
 566 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
 567 {
 568         struct lm85_data *data = lm85_update_device(dev);
 569         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 570 }
 571 static ssize_t set_in_max(struct device *dev, const char *buf,
 572                 size_t count, int nr)
 573 {
 574         struct i2c_client *client = to_i2c_client(dev);
 575         struct lm85_data *data = i2c_get_clientdata(client);
 576         long val = simple_strtol(buf, NULL, 10);
 577
 578         down(&data->update_lock);
 579         data->in_max[nr] = INS_TO_REG(nr, val);
 580         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 581         up(&data->update_lock);
 582         return count;
 583 }
 584 #define show_in_reg(offset)                                             \
 585 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
 586 {                                                                       \
 587         return show_in(dev, buf, offset);                               \
 588 }                                                                       \
 589 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
 590 {                                                                       \
 591         return show_in_min(dev, buf, offset);                           \
 592 }                                                                       \
 593 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
 594 {                                                                       \
 595         return show_in_max(dev, buf, offset);                           \
 596 }                                                                       \
 597 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
 598         const char *buf, size_t count)                                  \
 599 {                                                                       \
 600         return set_in_min(dev, buf, count, offset);                     \
 601 }                                                                       \
 602 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
 603         const char *buf, size_t count)                                  \
 604 {                                                                       \
 605         return set_in_max(dev, buf, count, offset);                     \
 606 }                                                                       \
 607 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
 608                 NULL);                                                  \
 609 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
 610                 show_in_##offset##_min, set_in_##offset##_min);         \
 611 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
 612                 show_in_##offset##_max, set_in_##offset##_max);
 613
 614 show_in_reg(0);
 615 show_in_reg(1);
 616 show_in_reg(2);
 617 show_in_reg(3);
 618 show_in_reg(4);
 619
 620 /* Temps */
 621
 622 static ssize_t show_temp(struct device *dev, char *buf, int nr)
 623 {
 624         struct lm85_data *data = lm85_update_device(dev);
 625         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 626                                                     data->temp_ext[nr],
 627                                                     data->adc_scale) );
 628 }
 629 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
 630 {
 631         struct lm85_data *data = lm85_update_device(dev);
 632         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 633 }
 634 static ssize_t set_temp_min(struct device *dev, const char *buf,
 635                 size_t count, int nr)
 636 {
 637         struct i2c_client *client = to_i2c_client(dev);
 638         struct lm85_data *data = i2c_get_clientdata(client);
 639         long val = simple_strtol(buf, NULL, 10);
 640
 641         down(&data->update_lock);
 642         data->temp_min[nr] = TEMP_TO_REG(val);
 643         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 644         up(&data->update_lock);
 645         return count;
 646 }
 647 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
 648 {
 649         struct lm85_data *data = lm85_update_device(dev);
 650         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 651 }
 652 static ssize_t set_temp_max(struct device *dev, const char *buf,
 653                 size_t count, int nr)
 654 {
 655         struct i2c_client *client = to_i2c_client(dev);
 656         struct lm85_data *data = i2c_get_clientdata(client);
 657         long val = simple_strtol(buf, NULL, 10);
 658
 659         down(&data->update_lock);
 660         data->temp_max[nr] = TEMP_TO_REG(val);
 661         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 662         up(&data->update_lock);
 663         return count;
 664 }
 665 #define show_temp_reg(offset)                                           \
 666 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
 667 {                                                                       \
 668         return show_temp(dev, buf, offset - 1);                         \
 669 }                                                                       \
 670 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
 671 {                                                                       \
 672         return show_temp_min(dev, buf, offset - 1);                     \
 673 }                                                                       \
 674 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
 675 {                                                                       \
 676         return show_temp_max(dev, buf, offset - 1);                     \
 677 }                                                                       \
 678 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
 679         const char *buf, size_t count)                                  \
 680 {                                                                       \
 681         return set_temp_min(dev, buf, count, offset - 1);               \
 682 }                                                                       \
 683 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
 684         const char *buf, size_t count)                                  \
 685 {                                                                       \
 686         return set_temp_max(dev, buf, count, offset - 1);               \
 687 }                                                                       \
 688 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
 689                 NULL);                                                  \
 690 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
 691                 show_temp_##offset##_min, set_temp_##offset##_min);     \
 692 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
 693                 show_temp_##offset##_max, set_temp_##offset##_max);
 694
 695 show_temp_reg(1);
 696 show_temp_reg(2);
 697 show_temp_reg(3);
 698
 699
 700 /* Automatic PWM control */
 701
 702 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
 703 {
 704         struct lm85_data *data = lm85_update_device(dev);
 705         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 706 }
 707 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
 708         size_t count, int nr)
 709 {
 710         struct i2c_client *client = to_i2c_client(dev);
 711         struct lm85_data *data = i2c_get_clientdata(client);
 712         long val = simple_strtol(buf, NULL, 10);
 713
 714         down(&data->update_lock);
 715         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 716                 | ZONE_TO_REG(val) ;
 717         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 718                 data->autofan[nr].config);
 719         up(&data->update_lock);
 720         return count;
 721 }
 722 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
 723 {
 724         struct lm85_data *data = lm85_update_device(dev);
 725         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 726 }
 727 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
 728         size_t count, int nr)
 729 {
 730         struct i2c_client *client = to_i2c_client(dev);
 731         struct lm85_data *data = i2c_get_clientdata(client);
 732         long val = simple_strtol(buf, NULL, 10);
 733
 734         down(&data->update_lock);
 735         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 736         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 737                 data->autofan[nr].min_pwm);
 738         up(&data->update_lock);
 739         return count;
 740 }
 741 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
 742 {
 743         struct lm85_data *data = lm85_update_device(dev);
 744         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 745 }
 746 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
 747         size_t count, int nr)
 748 {
 749         struct i2c_client *client = to_i2c_client(dev);
 750         struct lm85_data *data = i2c_get_clientdata(client);
 751         long val = simple_strtol(buf, NULL, 10);
 752
 753         down(&data->update_lock);
 754         data->autofan[nr].min_off = val;
 755         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 756                 | data->syncpwm3
 757                 | (data->autofan[0].min_off ? 0x20 : 0)
 758                 | (data->autofan[1].min_off ? 0x40 : 0)
 759                 | (data->autofan[2].min_off ? 0x80 : 0)
 760         );
 761         up(&data->update_lock);
 762         return count;
 763 }
 764 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
 765 {
 766         struct lm85_data *data = lm85_update_device(dev);
 767         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 768 }
 769 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
 770                 size_t count, int nr)
 771 {
 772         struct i2c_client *client = to_i2c_client(dev);
 773         struct lm85_data *data = i2c_get_clientdata(client);
 774         long val = simple_strtol(buf, NULL, 10);
 775
 776         down(&data->update_lock);
 777         data->autofan[nr].freq = FREQ_TO_REG(val);
 778         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 779                 (data->zone[nr].range << 4)
 780                 | data->autofan[nr].freq
 781         );
 782         up(&data->update_lock);
 783         return count;
 784 }
 785 #define pwm_auto(offset)                                                \
 786 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
 787         char *buf)                                                      \
 788 {                                                                       \
 789         return show_pwm_auto_channels(dev, buf, offset - 1);            \
 790 }                                                                       \
 791 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
 792         const char *buf, size_t count)                                  \
 793 {                                                                       \
 794         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
 795 }                                                                       \
 796 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
 797         char *buf)                                                      \
 798 {                                                                       \
 799         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
 800 }                                                                       \
 801 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
 802         const char *buf, size_t count)                                  \
 803 {                                                                       \
 804         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
 805 }                                                                       \
 806 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
 807         char *buf)                                                      \
 808 {                                                                       \
 809         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
 810 }                                                                       \
 811 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
 812         const char *buf, size_t count)                                  \
 813 {                                                                       \
 814         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
 815 }                                                                       \
 816 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
 817         char *buf)                                                      \
 818 {                                                                       \
 819         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
 820 }                                                                       \
 821 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
 822         const char *buf, size_t count)                                  \
 823 {                                                                       \
 824         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
 825 }                                                                       \
 826 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
 827                 show_pwm##offset##_auto_channels,                       \
 828                 set_pwm##offset##_auto_channels);                       \
 829 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
 830                 show_pwm##offset##_auto_pwm_min,                        \
 831                 set_pwm##offset##_auto_pwm_min);                        \
 832 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
 833                 show_pwm##offset##_auto_pwm_minctl,                     \
 834                 set_pwm##offset##_auto_pwm_minctl);                     \
 835 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
 836                 show_pwm##offset##_auto_pwm_freq,                       \
 837                 set_pwm##offset##_auto_pwm_freq);
 838 pwm_auto(1);
 839 pwm_auto(2);
 840 pwm_auto(3);
 841
 842 /* Temperature settings for automatic PWM control */
 843
 844 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
 845 {
 846         struct lm85_data *data = lm85_update_device(dev);
 847         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 848                 HYST_FROM_REG(data->zone[nr].hyst));
 849 }
 850 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
 851         size_t count, int nr)
 852 {
 853         struct i2c_client *client = to_i2c_client(dev);
 854         struct lm85_data *data = i2c_get_clientdata(client);
 855         int min;
 856         long val = simple_strtol(buf, NULL, 10);
 857
 858         down(&data->update_lock);
 859         min = TEMP_FROM_REG(data->zone[nr].limit);
 860         data->zone[nr].off_desired = TEMP_TO_REG(val);
 861         data->zone[nr].hyst = HYST_TO_REG(min - val);
 862         if ( nr == 0 || nr == 1 ) {
 863                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 864                         (data->zone[0].hyst << 4)
 865                         | data->zone[1].hyst
 866                         );
 867         } else {
 868                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 869                         (data->zone[2].hyst << 4)
 870                 );
 871         }
 872         up(&data->update_lock);
 873         return count;
 874 }
 875 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
 876 {
 877         struct lm85_data *data = lm85_update_device(dev);
 878         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 879 }
 880 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
 881         size_t count, int nr)
 882 {
 883         struct i2c_client *client = to_i2c_client(dev);
 884         struct lm85_data *data = i2c_get_clientdata(client);
 885         long val = simple_strtol(buf, NULL, 10);
 886
 887         down(&data->update_lock);
 888         data->zone[nr].limit = TEMP_TO_REG(val);
 889         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 890                 data->zone[nr].limit);
 891
 892 /* Update temp_auto_max and temp_auto_range */
 893         data->zone[nr].range = RANGE_TO_REG(
 894                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 895                 TEMP_FROM_REG(data->zone[nr].limit));
 896         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 897                 ((data->zone[nr].range & 0x0f) << 4)
 898                 | (data->autofan[nr].freq & 0x07));
 899
 900 /* Update temp_auto_hyst and temp_auto_off */
 901         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 902                 data->zone[nr].limit) - TEMP_FROM_REG(
 903                 data->zone[nr].off_desired));
 904         if ( nr == 0 || nr == 1 ) {
 905                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 906                         (data->zone[0].hyst << 4)
 907                         | data->zone[1].hyst
 908                         );
 909         } else {
 910                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 911                         (data->zone[2].hyst << 4)
 912                 );
 913         }
 914         up(&data->update_lock);
 915         return count;
 916 }
 917 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
 918 {
 919         struct lm85_data *data = lm85_update_device(dev);
 920         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 921                 RANGE_FROM_REG(data->zone[nr].range));
 922 }
 923 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
 924         size_t count, int nr)
 925 {
 926         struct i2c_client *client = to_i2c_client(dev);
 927         struct lm85_data *data = i2c_get_clientdata(client);
 928         int min;
 929         long val = simple_strtol(buf, NULL, 10);
 930
 931         down(&data->update_lock);
 932         min = TEMP_FROM_REG(data->zone[nr].limit);
 933         data->zone[nr].max_desired = TEMP_TO_REG(val);
 934         data->zone[nr].range = RANGE_TO_REG(
 935                 val - min);
 936         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 937                 ((data->zone[nr].range & 0x0f) << 4)
 938                 | (data->autofan[nr].freq & 0x07));
 939         up(&data->update_lock);
 940         return count;
 941 }
 942 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
 943 {
 944         struct lm85_data *data = lm85_update_device(dev);
 945         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 946 }
 947 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
 948                 size_t count, int nr)
 949 {
 950         struct i2c_client *client = to_i2c_client(dev);
 951         struct lm85_data *data = i2c_get_clientdata(client);
 952         long val = simple_strtol(buf, NULL, 10);
 953
 954         down(&data->update_lock);
 955         data->zone[nr].critical = TEMP_TO_REG(val);
 956         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 957                 data->zone[nr].critical);
 958         up(&data->update_lock);
 959         return count;
 960 }
 961 #define temp_auto(offset)                                               \
 962 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
 963         char *buf)                                                      \
 964 {                                                                       \
 965         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
 966 }                                                                       \
 967 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
 968         const char *buf, size_t count)                                  \
 969 {                                                                       \
 970         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
 971 }                                                                       \
 972 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
 973         char *buf)                                                      \
 974 {                                                                       \
 975         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
 976 }                                                                       \
 977 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
 978         const char *buf, size_t count)                                  \
 979 {                                                                       \
 980         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
 981 }                                                                       \
 982 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
 983         char *buf)                                                      \
 984 {                                                                       \
 985         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
 986 }                                                                       \
 987 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
 988         const char *buf, size_t count)                                  \
 989 {                                                                       \
 990         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
 991 }                                                                       \
 992 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
 993         char *buf)                                                      \
 994 {                                                                       \
 995         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
 996 }                                                                       \
 997 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
 998         const char *buf, size_t count)                                  \
 999 {                                                                       \
1000         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
1001 }                                                                       \
1002 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
1003                 show_temp##offset##_auto_temp_off,                      \
1004                 set_temp##offset##_auto_temp_off);                      \
1005 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
1006                 show_temp##offset##_auto_temp_min,                      \
1007                 set_temp##offset##_auto_temp_min);                      \
1008 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1009                 show_temp##offset##_auto_temp_max,                      \
1010                 set_temp##offset##_auto_temp_max);                      \
1011 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1012                 show_temp##offset##_auto_temp_crit,                     \
1013                 set_temp##offset##_auto_temp_crit);
1014 temp_auto(1);
1015 temp_auto(2);
1016 temp_auto(3);
1017
1018 int lm85_attach_adapter(struct i2c_adapter *adapter)
1019 {
1020         if (!(adapter->class & I2C_CLASS_HWMON))
1021                 return 0;
1022         return i2c_detect(adapter, &addr_data, lm85_detect);
1023 }
1024
1025 int lm85_detect(struct i2c_adapter *adapter, int address,
1026                 int kind)
1027 {
1028         int company, verstep ;
1029         struct i2c_client *new_client = NULL;
1030         struct lm85_data *data;
1031         int err = 0;
1032         const char *type_name = "";
1033
1034         if (i2c_is_isa_adapter(adapter)) {
1035                 /* This chip has no ISA interface */
1036                 goto ERROR0 ;
1037         };
1038
1039         if (!i2c_check_functionality(adapter,
1040                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1041                 /* We need to be able to do byte I/O */
1042                 goto ERROR0 ;
1043         };
1044
1045         /* OK. For now, we presume we have a valid client. We now create the
1046            client structure, even though we cannot fill it completely yet.
1047            But it allows us to access lm85_{read,write}_value. */
1048
1049         if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1050                 err = -ENOMEM;
1051                 goto ERROR0;
1052         }
1053         memset(data, 0, sizeof(struct lm85_data));
1054
1055         new_client = &data->client;
1056         i2c_set_clientdata(new_client, data);
1057         new_client->addr = address;
1058         new_client->adapter = adapter;
1059         new_client->driver = &lm85_driver;
1060         new_client->flags = 0;
1061
1062         /* Now, we do the remaining detection. */
1063
1064         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1065         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1066
1067         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1068                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1069                 i2c_adapter_id(new_client->adapter), new_client->addr,
1070                 company, verstep);
1071
1072         /* If auto-detecting, Determine the chip type. */
1073         if (kind <= 0) {
1074                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1075                         i2c_adapter_id(adapter), address );
1076                 if( company == LM85_COMPANY_NATIONAL
1077                     && verstep == LM85_VERSTEP_LM85C ) {
1078                         kind = lm85c ;
1079                 } else if( company == LM85_COMPANY_NATIONAL
1080                     && verstep == LM85_VERSTEP_LM85B ) {
1081                         kind = lm85b ;
1082                 } else if( company == LM85_COMPANY_NATIONAL
1083                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1084                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1085                                 " Defaulting to LM85.\n", verstep);
1086                         kind = any_chip ;
1087                 } else if( company == LM85_COMPANY_ANALOG_DEV
1088                     && verstep == LM85_VERSTEP_ADM1027 ) {
1089                         kind = adm1027 ;
1090                 } else if( company == LM85_COMPANY_ANALOG_DEV
1091                     && (verstep == LM85_VERSTEP_ADT7463
1092                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1093                         kind = adt7463 ;
1094                 } else if( company == LM85_COMPANY_ANALOG_DEV
1095                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1096                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1097                                 " Defaulting to Generic LM85.\n", verstep );
1098                         kind = any_chip ;
1099                 } else if( company == LM85_COMPANY_SMSC
1100                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1101                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1102                         /* Unfortunately, we can't tell a '100 from a '101
1103                          * from the registers.  Since a '101 is a '100
1104                          * in a package with fewer pins and therefore no
1105                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1106                          * inputs read 0, then it's a '101.
1107                          */
1108                         kind = emc6d100 ;
1109                 } else if( company == LM85_COMPANY_SMSC
1110                     && verstep == LM85_VERSTEP_EMC6D102) {
1111                         kind = emc6d102 ;
1112                 } else if( company == LM85_COMPANY_SMSC
1113                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1114                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1115                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1116                             " Defaulting to Generic LM85.\n", verstep );
1117                         kind = any_chip ;
1118                 } else if( kind == any_chip
1119                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1120                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1121                         /* Leave kind as "any_chip" */
1122                 } else {
1123                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1124                         /* Not an LM85 ... */
1125                         if( kind == any_chip ) {  /* User used force=x,y */
1126                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1127                                         " found at %d,0x%02x. Try force_lm85c.\n",
1128                                         i2c_adapter_id(adapter), address );
1129                         }
1130                         err = 0 ;
1131                         goto ERROR1;
1132                 }
1133         }
1134
1135         /* Fill in the chip specific driver values */
1136         if ( kind == any_chip ) {
1137                 type_name = "lm85";
1138         } else if ( kind == lm85b ) {
1139                 type_name = "lm85b";
1140         } else if ( kind == lm85c ) {
1141                 type_name = "lm85c";
1142         } else if ( kind == adm1027 ) {
1143                 type_name = "adm1027";
1144         } else if ( kind == adt7463 ) {
1145                 type_name = "adt7463";
1146         } else if ( kind == emc6d100){
1147                 type_name = "emc6d100";
1148         } else if ( kind == emc6d102 ) {
1149                 type_name = "emc6d102";
1150         }
1151         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1152
1153         /* Fill in the remaining client fields */
1154         data->type = kind;
1155         data->valid = 0;
1156         init_MUTEX(&data->update_lock);
1157
1158         /* Tell the I2C layer a new client has arrived */
1159         if ((err = i2c_attach_client(new_client)))
1160                 goto ERROR1;
1161
1162         /* Set the VRM version */
1163         data->vrm = i2c_which_vrm();
1164
1165         /* Initialize the LM85 chip */
1166         lm85_init_client(new_client);
1167
1168         /* Register sysfs hooks */
1169         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1170         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1171         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1172         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1173         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1174         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1175         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1176         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1177         device_create_file(&new_client->dev, &dev_attr_pwm1);
1178         device_create_file(&new_client->dev, &dev_attr_pwm2);
1179         device_create_file(&new_client->dev, &dev_attr_pwm3);
1180         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1181         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1182         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1183         device_create_file(&new_client->dev, &dev_attr_in0_input);
1184         device_create_file(&new_client->dev, &dev_attr_in1_input);
1185         device_create_file(&new_client->dev, &dev_attr_in2_input);
1186         device_create_file(&new_client->dev, &dev_attr_in3_input);
1187         device_create_file(&new_client->dev, &dev_attr_in4_input);
1188         device_create_file(&new_client->dev, &dev_attr_in0_min);
1189         device_create_file(&new_client->dev, &dev_attr_in1_min);
1190         device_create_file(&new_client->dev, &dev_attr_in2_min);
1191         device_create_file(&new_client->dev, &dev_attr_in3_min);
1192         device_create_file(&new_client->dev, &dev_attr_in4_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_in4_max);
1198         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1199         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1200         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1201         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1202         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1203         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1204         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1205         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1206         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1207         device_create_file(&new_client->dev, &dev_attr_vrm);
1208         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1209         device_create_file(&new_client->dev, &dev_attr_alarms);
1210         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1211         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1212         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1213         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1214         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1215         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1216         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1217         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1218         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1219         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1220         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1221         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1222         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1223         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1224         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1225         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1226         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1227         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1228         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1229         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1230         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1231         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1232         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1233         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1234
1235         return 0;
1236
1237         /* Error out and cleanup code */
1238     ERROR1:
1239         kfree(data);
1240     ERROR0:
1241         return err;
1242 }
1243
1244 int lm85_detach_client(struct i2c_client *client)
1245 {
1246         i2c_detach_client(client);
1247         kfree(i2c_get_clientdata(client));
1248         return 0;
1249 }
1250
1251
1252 int lm85_read_value(struct i2c_client *client, u8 reg)
1253 {
1254         int res;
1255
1256         /* What size location is it? */
1257         switch( reg ) {
1258         case LM85_REG_FAN(0) :  /* Read WORD data */
1259         case LM85_REG_FAN(1) :
1260         case LM85_REG_FAN(2) :
1261         case LM85_REG_FAN(3) :
1262         case LM85_REG_FAN_MIN(0) :
1263         case LM85_REG_FAN_MIN(1) :
1264         case LM85_REG_FAN_MIN(2) :
1265         case LM85_REG_FAN_MIN(3) :
1266         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1267                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1268                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1269                 break ;
1270         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1271                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1272                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1273                 break ;
1274         default:        /* Read BYTE data */
1275                 res = i2c_smbus_read_byte_data(client, reg);
1276                 break ;
1277         }
1278
1279         return res ;
1280 }
1281
1282 int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1283 {
1284         int res ;
1285
1286         switch( reg ) {
1287         case LM85_REG_FAN(0) :  /* Write WORD data */
1288         case LM85_REG_FAN(1) :
1289         case LM85_REG_FAN(2) :
1290         case LM85_REG_FAN(3) :
1291         case LM85_REG_FAN_MIN(0) :
1292         case LM85_REG_FAN_MIN(1) :
1293         case LM85_REG_FAN_MIN(2) :
1294         case LM85_REG_FAN_MIN(3) :
1295         /* NOTE: ALARM is read only, so not included here */
1296                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1297                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1298                 break ;
1299         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1300                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1301                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1302                 break ;
1303         default:        /* Write BYTE data */
1304                 res = i2c_smbus_write_byte_data(client, reg, value);
1305                 break ;
1306         }
1307
1308         return res ;
1309 }
1310
1311 void lm85_init_client(struct i2c_client *client)
1312 {
1313         int value;
1314         struct lm85_data *data = i2c_get_clientdata(client);
1315
1316         dev_dbg(&client->dev, "Initializing device\n");
1317
1318         /* Warn if part was not "READY" */
1319         value = lm85_read_value(client, LM85_REG_CONFIG);
1320         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1321         if( value & 0x02 ) {
1322                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1323                             i2c_adapter_id(client->adapter), client->addr );
1324         };
1325         if( ! (value & 0x04) ) {
1326                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1327                             i2c_adapter_id(client->adapter), client->addr );
1328         };
1329         if( value & 0x10
1330             && ( data->type == adm1027
1331                 || data->type == adt7463 ) ) {
1332                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1333                         "Please report this to the lm85 maintainer.\n",
1334                             i2c_adapter_id(client->adapter), client->addr );
1335         };
1336
1337         /* WE INTENTIONALLY make no changes to the limits,
1338          *   offsets, pwms, fans and zones.  If they were
1339          *   configured, we don't want to mess with them.
1340          *   If they weren't, the default is 100% PWM, no
1341          *   control and will suffice until 'sensors -s'
1342          *   can be run by the user.
1343          */
1344
1345         /* Start monitoring */
1346         value = lm85_read_value(client, LM85_REG_CONFIG);
1347         /* Try to clear LOCK, Set START, save everything else */
1348         value = (value & ~ 0x02) | 0x01 ;
1349         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1350         lm85_write_value(client, LM85_REG_CONFIG, value);
1351 }
1352
1353 static struct lm85_data *lm85_update_device(struct device *dev)
1354 {
1355         struct i2c_client *client = to_i2c_client(dev);
1356         struct lm85_data *data = i2c_get_clientdata(client);
1357         int i;
1358
1359         down(&data->update_lock);
1360
1361         if ( !data->valid ||
1362              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1363                 /* Things that change quickly */
1364                 dev_dbg(&client->dev, "Reading sensor values\n");
1365
1366                 /* Have to read extended bits first to "freeze" the
1367                  * more significant bits that are read later.
1368                  */
1369                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1370                         int ext1 = lm85_read_value(client,
1371                                                    ADM1027_REG_EXTEND_ADC1);
1372                         int ext2 =  lm85_read_value(client,
1373                                                     ADM1027_REG_EXTEND_ADC2);
1374                         int val = (ext1 << 8) + ext2;
1375
1376                         for(i = 0; i <= 4; i++)
1377                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1378
1379                         for(i = 0; i <= 2; i++)
1380                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1381                 }
1382
1383                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1384                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1385                    other chips ext is always 0 and the value of scale is
1386                    irrelevant. So it is left in 4*/
1387                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1388
1389                 for (i = 0; i <= 4; ++i) {
1390                         data->in[i] =
1391                             lm85_read_value(client, LM85_REG_IN(i));
1392                 }
1393
1394                 for (i = 0; i <= 3; ++i) {
1395                         data->fan[i] =
1396                             lm85_read_value(client, LM85_REG_FAN(i));
1397                 }
1398
1399                 for (i = 0; i <= 2; ++i) {
1400                         data->temp[i] =
1401                             lm85_read_value(client, LM85_REG_TEMP(i));
1402                 }
1403
1404                 for (i = 0; i <= 2; ++i) {
1405                         data->pwm[i] =
1406                             lm85_read_value(client, LM85_REG_PWM(i));
1407                 }
1408
1409                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1410
1411                 if ( data->type == adt7463 ) {
1412                         if( data->therm_total < ULONG_MAX - 256 ) {
1413                             data->therm_total +=
1414                                 lm85_read_value(client, ADT7463_REG_THERM );
1415                         }
1416                 } else if ( data->type == emc6d100 ) {
1417                         /* Three more voltage sensors */
1418                         for (i = 5; i <= 7; ++i) {
1419                                 data->in[i] =
1420                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1421                         }
1422                         /* More alarm bits */
1423                         data->alarms |=
1424                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1425                 } else if (data->type == emc6d102 ) {
1426                         /* Have to read LSB bits after the MSB ones because
1427                            the reading of the MSB bits has frozen the
1428                            LSBs (backward from the ADM1027).
1429                          */
1430                         int ext1 = lm85_read_value(client,
1431                                                    EMC6D102_REG_EXTEND_ADC1);
1432                         int ext2 = lm85_read_value(client,
1433                                                    EMC6D102_REG_EXTEND_ADC2);
1434                         int ext3 = lm85_read_value(client,
1435                                                    EMC6D102_REG_EXTEND_ADC3);
1436                         int ext4 = lm85_read_value(client,
1437                                                    EMC6D102_REG_EXTEND_ADC4);
1438                         data->in_ext[0] = ext3 & 0x0f;
1439                         data->in_ext[1] = ext4 & 0x0f;
1440                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1441                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1442                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1443
1444                         data->temp_ext[0] = ext1 & 0x0f;
1445                         data->temp_ext[1] = ext2 & 0x0f;
1446                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1447                 }
1448
1449                 data->last_reading = jiffies ;
1450         };  /* last_reading */
1451
1452         if ( !data->valid ||
1453              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1454                 /* Things that don't change often */
1455                 dev_dbg(&client->dev, "Reading config values\n");
1456
1457                 for (i = 0; i <= 4; ++i) {
1458                         data->in_min[i] =
1459                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1460                         data->in_max[i] =
1461                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1462                 }
1463
1464                 if ( data->type == emc6d100 ) {
1465                         for (i = 5; i <= 7; ++i) {
1466                                 data->in_min[i] =
1467                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1468                                 data->in_max[i] =
1469                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1470                         }
1471                 }
1472
1473                 for (i = 0; i <= 3; ++i) {
1474                         data->fan_min[i] =
1475                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1476                 }
1477
1478                 for (i = 0; i <= 2; ++i) {
1479                         data->temp_min[i] =
1480                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1481                         data->temp_max[i] =
1482                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1483                 }
1484
1485                 data->vid = lm85_read_value(client, LM85_REG_VID);
1486
1487                 for (i = 0; i <= 2; ++i) {
1488                         int val ;
1489                         data->autofan[i].config =
1490                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1491                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1492                         data->autofan[i].freq = val & 0x07 ;
1493                         data->zone[i].range = (val >> 4) & 0x0f ;
1494                         data->autofan[i].min_pwm =
1495                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1496                         data->zone[i].limit =
1497                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1498                         data->zone[i].critical =
1499                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1500                 }
1501
1502                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1503                 data->smooth[0] = i & 0x0f ;
1504                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1505                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1506                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1507                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1508                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1509                 data->smooth[1] = (i>>4) & 0x0f ;
1510                 data->smooth[2] = i & 0x0f ;
1511
1512                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1513                 data->zone[0].hyst = (i>>4) & 0x0f ;
1514                 data->zone[1].hyst = i & 0x0f ;
1515
1516                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1517                 data->zone[2].hyst = (i>>4) & 0x0f ;
1518
1519                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1520                         data->tach_mode = lm85_read_value(client,
1521                                 LM85_REG_TACH_MODE );
1522                         data->spinup_ctl = lm85_read_value(client,
1523                                 LM85_REG_SPINUP_CTL );
1524                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1525                         if ( data->type == adt7463 ) {
1526                                 for (i = 0; i <= 2; ++i) {
1527                                     data->oppoint[i] = lm85_read_value(client,
1528                                         ADT7463_REG_OPPOINT(i) );
1529                                 }
1530                                 data->tmin_ctl = lm85_read_value(client,
1531                                         ADT7463_REG_TMIN_CTL1 );
1532                                 data->therm_limit = lm85_read_value(client,
1533                                         ADT7463_REG_THERM_LIMIT );
1534                         }
1535                         for (i = 0; i <= 2; ++i) {
1536                             data->temp_offset[i] = lm85_read_value(client,
1537                                 ADM1027_REG_TEMP_OFFSET(i) );
1538                         }
1539                         data->tach_mode = lm85_read_value(client,
1540                                 ADM1027_REG_CONFIG3 );
1541                         data->fan_ppr = lm85_read_value(client,
1542                                 ADM1027_REG_FAN_PPR );
1543                 }
1544
1545                 data->last_config = jiffies;
1546         };  /* last_config */
1547
1548         data->valid = 1;
1549
1550         up(&data->update_lock);
1551
1552         return data;
1553 }
1554
1555
1556 static int __init sm_lm85_init(void)
1557 {
1558         return i2c_add_driver(&lm85_driver);
1559 }
1560
1561 static void  __exit sm_lm85_exit(void)
1562 {
1563         i2c_del_driver(&lm85_driver);
1564 }
1565
1566 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1567  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1568  *     post 2.7.0 CVS changes.
1569  */
1570 MODULE_LICENSE("GPL");
1571 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1572 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1573
1574 module_init(sm_lm85_init);
1575 module_exit(sm_lm85_exit);