drivers/hwmon/w83792d.c

   1 /*
   2     w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
   3                 monitoring
   4     Copyright (C) 2004, 2005 Winbond Electronics Corp.
   5                         Chunhao Huang <DZShen@Winbond.com.tw>,
   6                         Rudolf Marek <r.marek@sh.cvut.cz>
   7
   8     This program is free software; you can redistribute it and/or modify
   9     it under the terms of the GNU General Public License as published by
  10     the Free Software Foundation; either version 2 of the License, or
  11     (at your option) any later version.
  12
  13     This program is distributed in the hope that it will be useful,
  14     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16     GNU General Public License for more details.
  17
  18     You should have received a copy of the GNU General Public License
  19     along with this program; if not, write to the Free Software
  20     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21
  22     Note:
  23     1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
  24     2. This driver is only for Winbond W83792D C version device, there
  25        are also some motherboards with B version W83792D device. The
  26        calculation method to in6-in7(measured value, limits) is a little
  27        different between C and B version. C or B version can be identified
  28        by CR[0x49h].
  29 */
  30
  31 /*
  32     Supports following chips:
  33
  34     Chip        #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  35     w83792d     9       7       7       3       0x7a    0x5ca3  yes     no
  36 */
  37
  38 #include <linux/config.h>
  39 #include <linux/module.h>
  40 #include <linux/init.h>
  41 #include <linux/slab.h>
  42 #include <linux/i2c.h>
  43 #include <linux/hwmon.h>
  44 #include <linux/hwmon-sysfs.h>
  45 #include <linux/err.h>
  46
  47 /* Addresses to scan */
  48 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
  49
  50 /* Insmod parameters */
  51 I2C_CLIENT_INSMOD_1(w83792d);
  52 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
  53                         "{bus, clientaddr, subclientaddr1, subclientaddr2}");
  54
  55 static int init;
  56 module_param(init, bool, 0);
  57 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
  58
  59 /* The W83792D registers */
  60 static const u8 W83792D_REG_IN[9] = {
  61         0x20,   /* Vcore A in DataSheet */
  62         0x21,   /* Vcore B in DataSheet */
  63         0x22,   /* VIN0 in DataSheet */
  64         0x23,   /* VIN1 in DataSheet */
  65         0x24,   /* VIN2 in DataSheet */
  66         0x25,   /* VIN3 in DataSheet */
  67         0x26,   /* 5VCC in DataSheet */
  68         0xB0,   /* 5VSB in DataSheet */
  69         0xB1    /* VBAT in DataSheet */
  70 };
  71 #define W83792D_REG_LOW_BITS1 0x3E  /* Low Bits I in DataSheet */
  72 #define W83792D_REG_LOW_BITS2 0x3F  /* Low Bits II in DataSheet */
  73 static const u8 W83792D_REG_IN_MAX[9] = {
  74         0x2B,   /* Vcore A High Limit in DataSheet */
  75         0x2D,   /* Vcore B High Limit in DataSheet */
  76         0x2F,   /* VIN0 High Limit in DataSheet */
  77         0x31,   /* VIN1 High Limit in DataSheet */
  78         0x33,   /* VIN2 High Limit in DataSheet */
  79         0x35,   /* VIN3 High Limit in DataSheet */
  80         0x37,   /* 5VCC High Limit in DataSheet */
  81         0xB4,   /* 5VSB High Limit in DataSheet */
  82         0xB6    /* VBAT High Limit in DataSheet */
  83 };
  84 static const u8 W83792D_REG_IN_MIN[9] = {
  85         0x2C,   /* Vcore A Low Limit in DataSheet */
  86         0x2E,   /* Vcore B Low Limit in DataSheet */
  87         0x30,   /* VIN0 Low Limit in DataSheet */
  88         0x32,   /* VIN1 Low Limit in DataSheet */
  89         0x34,   /* VIN2 Low Limit in DataSheet */
  90         0x36,   /* VIN3 Low Limit in DataSheet */
  91         0x38,   /* 5VCC Low Limit in DataSheet */
  92         0xB5,   /* 5VSB Low Limit in DataSheet */
  93         0xB7    /* VBAT Low Limit in DataSheet */
  94 };
  95 static const u8 W83792D_REG_FAN[7] = {
  96         0x28,   /* FAN 1 Count in DataSheet */
  97         0x29,   /* FAN 2 Count in DataSheet */
  98         0x2A,   /* FAN 3 Count in DataSheet */
  99         0xB8,   /* FAN 4 Count in DataSheet */
 100         0xB9,   /* FAN 5 Count in DataSheet */
 101         0xBA,   /* FAN 6 Count in DataSheet */
 102         0xBE    /* FAN 7 Count in DataSheet */
 103 };
 104 static const u8 W83792D_REG_FAN_MIN[7] = {
 105         0x3B,   /* FAN 1 Count Low Limit in DataSheet */
 106         0x3C,   /* FAN 2 Count Low Limit in DataSheet */
 107         0x3D,   /* FAN 3 Count Low Limit in DataSheet */
 108         0xBB,   /* FAN 4 Count Low Limit in DataSheet */
 109         0xBC,   /* FAN 5 Count Low Limit in DataSheet */
 110         0xBD,   /* FAN 6 Count Low Limit in DataSheet */
 111         0xBF    /* FAN 7 Count Low Limit in DataSheet */
 112 };
 113 #define W83792D_REG_FAN_CFG 0x84        /* FAN Configuration in DataSheet */
 114 static const u8 W83792D_REG_FAN_DIV[4] = {
 115         0x47,   /* contains FAN2 and FAN1 Divisor */
 116         0x5B,   /* contains FAN4 and FAN3 Divisor */
 117         0x5C,   /* contains FAN6 and FAN5 Divisor */
 118         0x9E    /* contains FAN7 Divisor. */
 119 };
 120 static const u8 W83792D_REG_PWM[7] = {
 121         0x81,   /* FAN 1 Duty Cycle, be used to control */
 122         0x83,   /* FAN 2 Duty Cycle, be used to control */
 123         0x94,   /* FAN 3 Duty Cycle, be used to control */
 124         0xA3,   /* FAN 4 Duty Cycle, be used to control */
 125         0xA4,   /* FAN 5 Duty Cycle, be used to control */
 126         0xA5,   /* FAN 6 Duty Cycle, be used to control */
 127         0xA6    /* FAN 7 Duty Cycle, be used to control */
 128 };
 129 #define W83792D_REG_BANK                0x4E
 130 #define W83792D_REG_TEMP2_CONFIG        0xC2
 131 #define W83792D_REG_TEMP3_CONFIG        0xCA
 132
 133 static const u8 W83792D_REG_TEMP1[3] = {
 134         0x27,   /* TEMP 1 in DataSheet */
 135         0x39,   /* TEMP 1 Over in DataSheet */
 136         0x3A,   /* TEMP 1 Hyst in DataSheet */
 137 };
 138
 139 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
 140         { 0xC0,         /* TEMP 2 in DataSheet */
 141           0xC1,         /* TEMP 2(0.5 deg) in DataSheet */
 142           0xC5,         /* TEMP 2 Over High part in DataSheet */
 143           0xC6,         /* TEMP 2 Over Low part in DataSheet */
 144           0xC3,         /* TEMP 2 Thyst High part in DataSheet */
 145           0xC4 },       /* TEMP 2 Thyst Low part in DataSheet */
 146         { 0xC8,         /* TEMP 3 in DataSheet */
 147           0xC9,         /* TEMP 3(0.5 deg) in DataSheet */
 148           0xCD,         /* TEMP 3 Over High part in DataSheet */
 149           0xCE,         /* TEMP 3 Over Low part in DataSheet */
 150           0xCB,         /* TEMP 3 Thyst High part in DataSheet */
 151           0xCC }        /* TEMP 3 Thyst Low part in DataSheet */
 152 };
 153
 154 static const u8 W83792D_REG_THERMAL[3] = {
 155         0x85,   /* SmartFanI: Fan1 target value */
 156         0x86,   /* SmartFanI: Fan2 target value */
 157         0x96    /* SmartFanI: Fan3 target value */
 158 };
 159
 160 static const u8 W83792D_REG_TOLERANCE[3] = {
 161         0x87,   /* (bit3-0)SmartFan Fan1 tolerance */
 162         0x87,   /* (bit7-4)SmartFan Fan2 tolerance */
 163         0x97    /* (bit3-0)SmartFan Fan3 tolerance */
 164 };
 165
 166 static const u8 W83792D_REG_POINTS[3][4] = {
 167         { 0x85,         /* SmartFanII: Fan1 temp point 1 */
 168           0xE3,         /* SmartFanII: Fan1 temp point 2 */
 169           0xE4,         /* SmartFanII: Fan1 temp point 3 */
 170           0xE5 },       /* SmartFanII: Fan1 temp point 4 */
 171         { 0x86,         /* SmartFanII: Fan2 temp point 1 */
 172           0xE6,         /* SmartFanII: Fan2 temp point 2 */
 173           0xE7,         /* SmartFanII: Fan2 temp point 3 */
 174           0xE8 },       /* SmartFanII: Fan2 temp point 4 */
 175         { 0x96,         /* SmartFanII: Fan3 temp point 1 */
 176           0xE9,         /* SmartFanII: Fan3 temp point 2 */
 177           0xEA,         /* SmartFanII: Fan3 temp point 3 */
 178           0xEB }        /* SmartFanII: Fan3 temp point 4 */
 179 };
 180
 181 static const u8 W83792D_REG_LEVELS[3][4] = {
 182         { 0x88,         /* (bit3-0) SmartFanII: Fan1 Non-Stop */
 183           0x88,         /* (bit7-4) SmartFanII: Fan1 Level 1 */
 184           0xE0,         /* (bit7-4) SmartFanII: Fan1 Level 2 */
 185           0xE0 },       /* (bit3-0) SmartFanII: Fan1 Level 3 */
 186         { 0x89,         /* (bit3-0) SmartFanII: Fan2 Non-Stop */
 187           0x89,         /* (bit7-4) SmartFanII: Fan2 Level 1 */
 188           0xE1,         /* (bit7-4) SmartFanII: Fan2 Level 2 */
 189           0xE1 },       /* (bit3-0) SmartFanII: Fan2 Level 3 */
 190         { 0x98,         /* (bit3-0) SmartFanII: Fan3 Non-Stop */
 191           0x98,         /* (bit7-4) SmartFanII: Fan3 Level 1 */
 192           0xE2,         /* (bit7-4) SmartFanII: Fan3 Level 2 */
 193           0xE2 }        /* (bit3-0) SmartFanII: Fan3 Level 3 */
 194 };
 195
 196 #define W83792D_REG_GPIO_EN             0x1A
 197 #define W83792D_REG_CONFIG              0x40
 198 #define W83792D_REG_VID_FANDIV          0x47
 199 #define W83792D_REG_CHIPID              0x49
 200 #define W83792D_REG_WCHIPID             0x58
 201 #define W83792D_REG_CHIPMAN             0x4F
 202 #define W83792D_REG_PIN                 0x4B
 203 #define W83792D_REG_I2C_SUBADDR         0x4A
 204
 205 #define W83792D_REG_ALARM1 0xA9         /* realtime status register1 */
 206 #define W83792D_REG_ALARM2 0xAA         /* realtime status register2 */
 207 #define W83792D_REG_ALARM3 0xAB         /* realtime status register3 */
 208 #define W83792D_REG_CHASSIS 0x42        /* Bit 5: Case Open status bit */
 209 #define W83792D_REG_CHASSIS_CLR 0x44    /* Bit 7: Case Open CLR_CHS/Reset bit */
 210
 211 /* control in0/in1 's limit modifiability */
 212 #define W83792D_REG_VID_IN_B            0x17
 213
 214 #define W83792D_REG_VBAT                0x5D
 215 #define W83792D_REG_I2C_ADDR            0x48
 216
 217 /* Conversions. Rounding and limit checking is only done on the TO_REG
 218    variants. Note that you should be a bit careful with which arguments
 219    these macros are called: arguments may be evaluated more than once.
 220    Fixing this is just not worth it. */
 221 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
 222                                 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
 223 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
 224                                 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
 225
 226 static inline u8
 227 FAN_TO_REG(long rpm, int div)
 228 {
 229         if (rpm == 0)
 230                 return 255;
 231         rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 232         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 233 }
 234
 235 #define FAN_FROM_REG(val,div)   ((val) == 0   ? -1 : \
 236                                 ((val) == 255 ? 0 : \
 237                                                 1350000 / ((val) * (div))))
 238
 239 /* for temp1 */
 240 #define TEMP1_TO_REG(val)       (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 241                                         : (val)) / 1000, 0, 0xff))
 242 #define TEMP1_FROM_REG(val)     (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
 243 /* for temp2 and temp3, because they need addtional resolution */
 244 #define TEMP_ADD_FROM_REG(val1, val2) \
 245         ((((val1) & 0x80 ? (val1)-0x100 \
 246                 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
 247 #define TEMP_ADD_TO_REG_HIGH(val) \
 248         (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 249                         : (val)) / 1000, 0, 0xff))
 250 #define TEMP_ADD_TO_REG_LOW(val)        ((val%1000) ? 0x80 : 0x00)
 251
 252 #define PWM_FROM_REG(val)               (val)
 253 #define PWM_TO_REG(val)                 (SENSORS_LIMIT((val),0,255))
 254 #define DIV_FROM_REG(val)               (1 << (val))
 255
 256 static inline u8
 257 DIV_TO_REG(long val)
 258 {
 259         int i;
 260         val = SENSORS_LIMIT(val, 1, 128) >> 1;
 261         for (i = 0; i < 7; i++) {
 262                 if (val == 0)
 263                         break;
 264                 val >>= 1;
 265         }
 266         return ((u8) i);
 267 }
 268
 269 struct w83792d_data {
 270         struct i2c_client client;
 271         struct class_device *class_dev;
 272         struct semaphore lock;
 273         enum chips type;
 274
 275         struct semaphore update_lock;
 276         char valid;             /* !=0 if following fields are valid */
 277         unsigned long last_updated;     /* In jiffies */
 278
 279         /* array of 2 pointers to subclients */
 280         struct i2c_client *lm75[2];
 281
 282         u8 in[9];               /* Register value */
 283         u8 in_max[9];           /* Register value */
 284         u8 in_min[9];           /* Register value */
 285         u8 low_bits[2];         /* Additional resolution to voltage in0-6 */
 286         u8 fan[7];              /* Register value */
 287         u8 fan_min[7];          /* Register value */
 288         u8 temp1[3];            /* current, over, thyst */
 289         u8 temp_add[2][6];      /* Register value */
 290         u8 fan_div[7];          /* Register encoding, shifted right */
 291         u8 pwm[7];              /* We only consider the first 3 set of pwm,
 292                                    although 792 chip has 7 set of pwm. */
 293         u8 pwmenable[3];
 294         u8 pwm_mode[7];         /* indicates PWM or DC mode: 1->PWM; 0->DC */
 295         u32 alarms;             /* realtime status register encoding,combined */
 296         u8 chassis;             /* Chassis status */
 297         u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
 298         u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
 299         u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
 300         u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
 301         u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
 302 };
 303
 304 static int w83792d_attach_adapter(struct i2c_adapter *adapter);
 305 static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
 306 static int w83792d_detach_client(struct i2c_client *client);
 307
 308 static int w83792d_read_value(struct i2c_client *client, u8 register);
 309 static int w83792d_write_value(struct i2c_client *client, u8 register,
 310                                 u8 value);
 311 static struct w83792d_data *w83792d_update_device(struct device *dev);
 312
 313 #ifdef DEBUG
 314 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
 315 #endif
 316
 317 static void w83792d_init_client(struct i2c_client *client);
 318
 319 static struct i2c_driver w83792d_driver = {
 320         .owner = THIS_MODULE,
 321         .name = "w83792d",
 322         .flags = I2C_DF_NOTIFY,
 323         .attach_adapter = w83792d_attach_adapter,
 324         .detach_client = w83792d_detach_client,
 325 };
 326
 327 static long in_count_from_reg(int nr, struct w83792d_data *data)
 328 {
 329         u16 vol_count = data->in[nr];
 330         u16 low_bits = 0;
 331         vol_count = (vol_count << 2);
 332         switch (nr)
 333         {
 334         case 0:  /* vin0 */
 335                 low_bits = (data->low_bits[0]) & 0x03;
 336                 break;
 337         case 1:  /* vin1 */
 338                 low_bits = ((data->low_bits[0]) & 0x0c) >> 2;
 339                 break;
 340         case 2:  /* vin2 */
 341                 low_bits = ((data->low_bits[0]) & 0x30) >> 4;
 342                 break;
 343         case 3:  /* vin3 */
 344                 low_bits = ((data->low_bits[0]) & 0xc0) >> 6;
 345                 break;
 346         case 4:  /* vin4 */
 347                 low_bits = (data->low_bits[1]) & 0x03;
 348                 break;
 349         case 5:  /* vin5 */
 350                 low_bits = ((data->low_bits[1]) & 0x0c) >> 2;
 351                 break;
 352         case 6:  /* vin6 */
 353                 low_bits = ((data->low_bits[1]) & 0x30) >> 4;
 354         default:
 355                 break;
 356         }
 357         vol_count = vol_count | low_bits;
 358         return vol_count;
 359 }
 360
 361 /* following are the sysfs callback functions */
 362 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 363                         char *buf)
 364 {
 365         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 366         int nr = sensor_attr->index;
 367         struct w83792d_data *data = w83792d_update_device(dev);
 368         return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
 369 }
 370
 371 #define show_in_reg(reg) \
 372 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 373                         char *buf) \
 374 { \
 375         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 376         int nr = sensor_attr->index; \
 377         struct w83792d_data *data = w83792d_update_device(dev); \
 378         return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
 379 }
 380
 381 show_in_reg(in_min);
 382 show_in_reg(in_max);
 383
 384 #define store_in_reg(REG, reg) \
 385 static ssize_t store_in_##reg (struct device *dev, \
 386                                 struct device_attribute *attr, \
 387                                 const char *buf, size_t count) \
 388 { \
 389         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 390         int nr = sensor_attr->index; \
 391         struct i2c_client *client = to_i2c_client(dev); \
 392         struct w83792d_data *data = i2c_get_clientdata(client); \
 393         u32 val; \
 394          \
 395         val = simple_strtoul(buf, NULL, 10); \
 396         data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
 397         w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
 398          \
 399         return count; \
 400 }
 401 store_in_reg(MIN, min);
 402 store_in_reg(MAX, max);
 403
 404 #define sysfs_in_reg(offset) \
 405 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
 406                                 NULL, offset); \
 407 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
 408                                 show_in_min, store_in_min, offset); \
 409 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
 410                                 show_in_max, store_in_max, offset);
 411
 412 sysfs_in_reg(0);
 413 sysfs_in_reg(1);
 414 sysfs_in_reg(2);
 415 sysfs_in_reg(3);
 416 sysfs_in_reg(4);
 417 sysfs_in_reg(5);
 418 sysfs_in_reg(6);
 419 sysfs_in_reg(7);
 420 sysfs_in_reg(8);
 421
 422 #define device_create_file_in(client, offset) \
 423 do { \
 424 device_create_file(&client->dev, &sensor_dev_attr_in##offset##_input.dev_attr); \
 425 device_create_file(&client->dev, &sensor_dev_attr_in##offset##_max.dev_attr); \
 426 device_create_file(&client->dev, &sensor_dev_attr_in##offset##_min.dev_attr); \
 427 } while (0)
 428
 429 #define show_fan_reg(reg) \
 430 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
 431                         char *buf) \
 432 { \
 433         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 434         int nr = sensor_attr->index - 1; \
 435         struct w83792d_data *data = w83792d_update_device(dev); \
 436         return sprintf(buf,"%d\n", \
 437                 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 438 }
 439
 440 show_fan_reg(fan);
 441 show_fan_reg(fan_min);
 442
 443 static ssize_t
 444 store_fan_min(struct device *dev, struct device_attribute *attr,
 445                 const char *buf, size_t count)
 446 {
 447         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 448         int nr = sensor_attr->index - 1;
 449         struct i2c_client *client = to_i2c_client(dev);
 450         struct w83792d_data *data = i2c_get_clientdata(client);
 451         u32 val;
 452
 453         val = simple_strtoul(buf, NULL, 10);
 454         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 455         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
 456                                 data->fan_min[nr]);
 457
 458         return count;
 459 }
 460
 461 static ssize_t
 462 show_fan_div(struct device *dev, struct device_attribute *attr,
 463                 char *buf)
 464 {
 465         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 466         int nr = sensor_attr->index;
 467         struct w83792d_data *data = w83792d_update_device(dev);
 468         return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
 469 }
 470
 471 /* Note: we save and restore the fan minimum here, because its value is
 472    determined in part by the fan divisor.  This follows the principle of
 473    least suprise; the user doesn't expect the fan minimum to change just
 474    because the divisor changed. */
 475 static ssize_t
 476 store_fan_div(struct device *dev, struct device_attribute *attr,
 477                 const char *buf, size_t count)
 478 {
 479         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 480         int nr = sensor_attr->index - 1;
 481         struct i2c_client *client = to_i2c_client(dev);
 482         struct w83792d_data *data = i2c_get_clientdata(client);
 483         unsigned long min;
 484         /*u8 reg;*/
 485         u8 fan_div_reg = 0;
 486         u8 tmp_fan_div;
 487
 488         /* Save fan_min */
 489         min = FAN_FROM_REG(data->fan_min[nr],
 490                            DIV_FROM_REG(data->fan_div[nr]));
 491
 492         data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
 493
 494         fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
 495         fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
 496         tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
 497                                         : ((data->fan_div[nr]) & 0x07);
 498         w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
 499                                         fan_div_reg | tmp_fan_div);
 500
 501         /* Restore fan_min */
 502         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 503         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
 504
 505         return count;
 506 }
 507
 508 #define sysfs_fan(offset) \
 509 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
 510                                 offset); \
 511 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
 512                                 show_fan_div, store_fan_div, offset); \
 513 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
 514                                 show_fan_min, store_fan_min, offset);
 515
 516 sysfs_fan(1);
 517 sysfs_fan(2);
 518 sysfs_fan(3);
 519 sysfs_fan(4);
 520 sysfs_fan(5);
 521 sysfs_fan(6);
 522 sysfs_fan(7);
 523
 524 #define device_create_file_fan(client, offset) \
 525 do { \
 526 device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_input.dev_attr); \
 527 device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_div.dev_attr); \
 528 device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_min.dev_attr); \
 529 } while (0)
 530
 531
 532 /* read/write the temperature1, includes measured value and limits */
 533
 534 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
 535                                 char *buf)
 536 {
 537         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 538         int nr = sensor_attr->index;
 539         struct w83792d_data *data = w83792d_update_device(dev);
 540         return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
 541 }
 542
 543 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
 544                                 const char *buf, size_t count)
 545 {
 546         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 547         int nr = sensor_attr->index;
 548         struct i2c_client *client = to_i2c_client(dev);
 549         struct w83792d_data *data = i2c_get_clientdata(client);
 550         s32 val;
 551
 552         val = simple_strtol(buf, NULL, 10);
 553
 554         data->temp1[nr] = TEMP1_TO_REG(val);
 555         w83792d_write_value(client, W83792D_REG_TEMP1[nr],
 556                 data->temp1[nr]);
 557
 558         return count;
 559 }
 560
 561
 562 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0);
 563 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1,
 564                                 store_temp1, 1);
 565 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1,
 566                                 store_temp1, 2);
 567
 568 #define device_create_file_temp1(client) \
 569 do { \
 570 device_create_file(&client->dev, &sensor_dev_attr_temp1_input.dev_attr); \
 571 device_create_file(&client->dev, &sensor_dev_attr_temp1_max.dev_attr); \
 572 device_create_file(&client->dev, &sensor_dev_attr_temp1_max_hyst.dev_attr); \
 573 } while (0)
 574
 575
 576 /* read/write the temperature2-3, includes measured value and limits */
 577
 578 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
 579                                 char *buf)
 580 {
 581         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 582         int nr = sensor_attr->nr;
 583         int index = sensor_attr->index;
 584         struct w83792d_data *data = w83792d_update_device(dev);
 585         return sprintf(buf,"%ld\n",
 586                 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
 587                         data->temp_add[nr][index+1]));
 588 }
 589
 590 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
 591                                 const char *buf, size_t count)
 592 {
 593         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 594         int nr = sensor_attr->nr;
 595         int index = sensor_attr->index;
 596         struct i2c_client *client = to_i2c_client(dev);
 597         struct w83792d_data *data = i2c_get_clientdata(client);
 598         s32 val;
 599
 600         val = simple_strtol(buf, NULL, 10);
 601
 602         data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
 603         data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
 604         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
 605                 data->temp_add[nr][index]);
 606         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
 607                 data->temp_add[nr][index+1]);
 608
 609         return count;
 610 }
 611
 612 #define sysfs_temp23(name,idx) \
 613 static SENSOR_DEVICE_ATTR_2(name##_input, S_IRUGO, show_temp23, NULL, \
 614                                 idx, 0); \
 615 static SENSOR_DEVICE_ATTR_2(name##_max, S_IRUGO | S_IWUSR, \
 616                                 show_temp23, store_temp23, idx, 2); \
 617 static SENSOR_DEVICE_ATTR_2(name##_max_hyst, S_IRUGO | S_IWUSR, \
 618                                 show_temp23, store_temp23, idx, 4);
 619
 620 sysfs_temp23(temp2,0)
 621 sysfs_temp23(temp3,1)
 622
 623 #define device_create_file_temp_add(client, offset) \
 624 do { \
 625 device_create_file(&client->dev, &sensor_dev_attr_temp##offset##_input.dev_attr); \
 626 device_create_file(&client->dev, &sensor_dev_attr_temp##offset##_max.dev_attr); \
 627 device_create_file(&client->dev, \
 628 &sensor_dev_attr_temp##offset##_max_hyst.dev_attr); \
 629 } while (0)
 630
 631
 632 /* get reatime status of all sensors items: voltage, temp, fan */
 633 static ssize_t
 634 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 635 {
 636         struct w83792d_data *data = w83792d_update_device(dev);
 637         return sprintf(buf, "%d\n", data->alarms);
 638 }
 639
 640 static
 641 DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 642 #define device_create_file_alarms(client) \
 643 device_create_file(&client->dev, &dev_attr_alarms);
 644
 645
 646
 647 static ssize_t
 648 show_pwm(struct device *dev, struct device_attribute *attr,
 649                 char *buf)
 650 {
 651         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 652         int nr = sensor_attr->index;
 653         struct w83792d_data *data = w83792d_update_device(dev);
 654         return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr-1]));
 655 }
 656
 657 static ssize_t
 658 show_pwmenable(struct device *dev, struct device_attribute *attr,
 659                         char *buf)
 660 {
 661         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 662         int nr = sensor_attr->index - 1;
 663         struct w83792d_data *data = w83792d_update_device(dev);
 664         long pwm_enable_tmp = 1;
 665
 666         switch (data->pwmenable[nr]) {
 667         case 0:
 668                 pwm_enable_tmp = 1; /* manual mode */
 669                 break;
 670         case 1:
 671                 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
 672                 break;
 673         case 2:
 674                 pwm_enable_tmp = 2; /* Smart Fan II */
 675                 break;
 676         }
 677
 678         return sprintf(buf, "%ld\n", pwm_enable_tmp);
 679 }
 680
 681 static ssize_t
 682 store_pwm(struct device *dev, struct device_attribute *attr,
 683                 const char *buf, size_t count)
 684 {
 685         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 686         int nr = sensor_attr->index - 1;
 687         struct i2c_client *client = to_i2c_client(dev);
 688         struct w83792d_data *data = i2c_get_clientdata(client);
 689         u32 val;
 690
 691         val = simple_strtoul(buf, NULL, 10);
 692         data->pwm[nr] = PWM_TO_REG(val);
 693         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 694
 695         return count;
 696 }
 697
 698 static ssize_t
 699 store_pwmenable(struct device *dev, struct device_attribute *attr,
 700                         const char *buf, size_t count)
 701 {
 702         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 703         int nr = sensor_attr->index - 1;
 704         struct i2c_client *client = to_i2c_client(dev);
 705         struct w83792d_data *data = i2c_get_clientdata(client);
 706         u32 val;
 707         u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
 708
 709         val = simple_strtoul(buf, NULL, 10);
 710         switch (val) {
 711         case 1:
 712                 data->pwmenable[nr] = 0; /* manual mode */
 713                 break;
 714         case 2:
 715                 data->pwmenable[nr] = 2; /* Smart Fan II */
 716                 break;
 717         case 3:
 718                 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
 719                 break;
 720         default:
 721                 return -EINVAL;
 722         }
 723         cfg1_tmp = data->pwmenable[0];
 724         cfg2_tmp = (data->pwmenable[1]) << 2;
 725         cfg3_tmp = (data->pwmenable[2]) << 4;
 726         cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
 727         fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
 728         w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
 729
 730         return count;
 731 }
 732
 733 #define sysfs_pwm(offset) \
 734 static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
 735                                 show_pwm, store_pwm, offset); \
 736 static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
 737                                 show_pwmenable, store_pwmenable, offset); \
 738
 739 sysfs_pwm(1);
 740 sysfs_pwm(2);
 741 sysfs_pwm(3);
 742
 743
 744 #define device_create_file_pwm(client, offset) \
 745 do { \
 746 device_create_file(&client->dev, &sensor_dev_attr_pwm##offset.dev_attr); \
 747 } while (0)
 748
 749 #define device_create_file_pwmenable(client, offset) \
 750 do { \
 751 device_create_file(&client->dev, &sensor_dev_attr_pwm##offset##_enable.dev_attr); \
 752 } while (0)
 753
 754
 755 static ssize_t
 756 show_pwm_mode(struct device *dev, struct device_attribute *attr,
 757                         char *buf)
 758 {
 759         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 760         int nr = sensor_attr->index;
 761         struct w83792d_data *data = w83792d_update_device(dev);
 762         return sprintf(buf, "%d\n", data->pwm_mode[nr-1]);
 763 }
 764
 765 static ssize_t
 766 store_pwm_mode(struct device *dev, struct device_attribute *attr,
 767                         const char *buf, size_t count)
 768 {
 769         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 770         int nr = sensor_attr->index - 1;
 771         struct i2c_client *client = to_i2c_client(dev);
 772         struct w83792d_data *data = i2c_get_clientdata(client);
 773         u32 val;
 774         u8 pwm_mode_mask = 0;
 775
 776         val = simple_strtoul(buf, NULL, 10);
 777         data->pwm_mode[nr] = SENSORS_LIMIT(val, 0, 1);
 778         pwm_mode_mask = w83792d_read_value(client,
 779                 W83792D_REG_PWM[nr]) & 0x7f;
 780         w83792d_write_value(client, W83792D_REG_PWM[nr],
 781                 ((data->pwm_mode[nr]) << 7) | pwm_mode_mask);
 782
 783         return count;
 784 }
 785
 786 #define sysfs_pwm_mode(offset) \
 787 static SENSOR_DEVICE_ATTR(pwm##offset##_mode, S_IRUGO | S_IWUSR, \
 788                                 show_pwm_mode, store_pwm_mode, offset);
 789
 790 sysfs_pwm_mode(1);
 791 sysfs_pwm_mode(2);
 792 sysfs_pwm_mode(3);
 793
 794 #define device_create_file_pwm_mode(client, offset) \
 795 do { \
 796 device_create_file(&client->dev, &sensor_dev_attr_pwm##offset##_mode.dev_attr); \
 797 } while (0)
 798
 799
 800 static ssize_t
 801 show_regs_chassis(struct device *dev, struct device_attribute *attr,
 802                         char *buf)
 803 {
 804         struct w83792d_data *data = w83792d_update_device(dev);
 805         return sprintf(buf, "%d\n", data->chassis);
 806 }
 807
 808 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
 809
 810 #define device_create_file_chassis(client) \
 811 do { \
 812 device_create_file(&client->dev, &dev_attr_chassis); \
 813 } while (0)
 814
 815
 816 static ssize_t
 817 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
 818 {
 819         struct w83792d_data *data = w83792d_update_device(dev);
 820         return sprintf(buf, "%d\n", data->chassis_clear);
 821 }
 822
 823 static ssize_t
 824 store_chassis_clear(struct device *dev, struct device_attribute *attr,
 825                         const char *buf, size_t count)
 826 {
 827         struct i2c_client *client = to_i2c_client(dev);
 828         struct w83792d_data *data = i2c_get_clientdata(client);
 829         u32 val;
 830         u8 temp1 = 0, temp2 = 0;
 831
 832         val = simple_strtoul(buf, NULL, 10);
 833
 834         data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
 835         temp1 = ((data->chassis_clear) << 7) & 0x80;
 836         temp2 = w83792d_read_value(client,
 837                 W83792D_REG_CHASSIS_CLR) & 0x7f;
 838         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
 839
 840         return count;
 841 }
 842
 843 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
 844                 show_chassis_clear, store_chassis_clear);
 845
 846 #define device_create_file_chassis_clear(client) \
 847 do { \
 848 device_create_file(&client->dev, &dev_attr_chassis_clear); \
 849 } while (0)
 850
 851
 852
 853 /* For Smart Fan I / Thermal Cruise */
 854 static ssize_t
 855 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
 856                         char *buf)
 857 {
 858         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 859         int nr = sensor_attr->index;
 860         struct w83792d_data *data = w83792d_update_device(dev);
 861         return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
 862 }
 863
 864 static ssize_t
 865 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
 866                         const char *buf, size_t count)
 867 {
 868         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 869         int nr = sensor_attr->index - 1;
 870         struct i2c_client *client = to_i2c_client(dev);
 871         struct w83792d_data *data = i2c_get_clientdata(client);
 872         u32 val;
 873         u8 target_tmp=0, target_mask=0;
 874
 875         val = simple_strtoul(buf, NULL, 10);
 876         target_tmp = val;
 877         target_tmp = target_tmp & 0x7f;
 878         target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
 879         data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
 880         w83792d_write_value(client, W83792D_REG_THERMAL[nr],
 881                 (data->thermal_cruise[nr]) | target_mask);
 882
 883         return count;
 884 }
 885
 886 #define sysfs_thermal_cruise(offset) \
 887 static SENSOR_DEVICE_ATTR(thermal_cruise##offset, S_IRUGO | S_IWUSR, \
 888                         show_thermal_cruise, store_thermal_cruise, offset);
 889
 890 sysfs_thermal_cruise(1);
 891 sysfs_thermal_cruise(2);
 892 sysfs_thermal_cruise(3);
 893
 894 #define device_create_file_thermal_cruise(client, offset) \
 895 do { \
 896 device_create_file(&client->dev, \
 897 &sensor_dev_attr_thermal_cruise##offset.dev_attr); \
 898 } while (0)
 899
 900
 901 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
 902 static ssize_t
 903 show_tolerance(struct device *dev, struct device_attribute *attr,
 904                 char *buf)
 905 {
 906         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 907         int nr = sensor_attr->index;
 908         struct w83792d_data *data = w83792d_update_device(dev);
 909         return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
 910 }
 911
 912 static ssize_t
 913 store_tolerance(struct device *dev, struct device_attribute *attr,
 914                 const char *buf, size_t count)
 915 {
 916         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 917         int nr = sensor_attr->index - 1;
 918         struct i2c_client *client = to_i2c_client(dev);
 919         struct w83792d_data *data = i2c_get_clientdata(client);
 920         u32 val;
 921         u8 tol_tmp, tol_mask;
 922
 923         val = simple_strtoul(buf, NULL, 10);
 924         tol_mask = w83792d_read_value(client,
 925                 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
 926         tol_tmp = SENSORS_LIMIT(val, 0, 15);
 927         tol_tmp &= 0x0f;
 928         data->tolerance[nr] = tol_tmp;
 929         if (nr == 1) {
 930                 tol_tmp <<= 4;
 931         }
 932         w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
 933                 tol_mask | tol_tmp);
 934
 935         return count;
 936 }
 937
 938 #define sysfs_tolerance(offset) \
 939 static SENSOR_DEVICE_ATTR(tolerance##offset, S_IRUGO | S_IWUSR, \
 940                                 show_tolerance, store_tolerance, offset);
 941
 942 sysfs_tolerance(1);
 943 sysfs_tolerance(2);
 944 sysfs_tolerance(3);
 945
 946 #define device_create_file_tolerance(client, offset) \
 947 do { \
 948 device_create_file(&client->dev, &sensor_dev_attr_tolerance##offset.dev_attr); \
 949 } while (0)
 950
 951
 952 /* For Smart Fan II */
 953 static ssize_t
 954 show_sf2_point(struct device *dev, struct device_attribute *attr,
 955                 char *buf)
 956 {
 957         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 958         int nr = sensor_attr->nr;
 959         int index = sensor_attr->index;
 960         struct w83792d_data *data = w83792d_update_device(dev);
 961         return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
 962 }
 963
 964 static ssize_t
 965 store_sf2_point(struct device *dev, struct device_attribute *attr,
 966                 const char *buf, size_t count)
 967 {
 968         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 969         int nr = sensor_attr->nr - 1;
 970         int index = sensor_attr->index - 1;
 971         struct i2c_client *client = to_i2c_client(dev);
 972         struct w83792d_data *data = i2c_get_clientdata(client);
 973         u32 val;
 974         u8 mask_tmp = 0;
 975
 976         val = simple_strtoul(buf, NULL, 10);
 977         data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
 978         mask_tmp = w83792d_read_value(client,
 979                                         W83792D_REG_POINTS[index][nr]) & 0x80;
 980         w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
 981                 mask_tmp|data->sf2_points[index][nr]);
 982
 983         return count;
 984 }
 985
 986 #define sysfs_sf2_point(offset, index) \
 987 static SENSOR_DEVICE_ATTR_2(sf2_point##offset##_fan##index, S_IRUGO | S_IWUSR, \
 988                                 show_sf2_point, store_sf2_point, offset, index);
 989
 990 sysfs_sf2_point(1, 1);  /* Fan1 */
 991 sysfs_sf2_point(2, 1);  /* Fan1 */
 992 sysfs_sf2_point(3, 1);  /* Fan1 */
 993 sysfs_sf2_point(4, 1);  /* Fan1 */
 994 sysfs_sf2_point(1, 2);  /* Fan2 */
 995 sysfs_sf2_point(2, 2);  /* Fan2 */
 996 sysfs_sf2_point(3, 2);  /* Fan2 */
 997 sysfs_sf2_point(4, 2);  /* Fan2 */
 998 sysfs_sf2_point(1, 3);  /* Fan3 */
 999 sysfs_sf2_point(2, 3);  /* Fan3 */
1000 sysfs_sf2_point(3, 3);  /* Fan3 */
1001 sysfs_sf2_point(4, 3);  /* Fan3 */
1002
1003 #define device_create_file_sf2_point(client, offset, index) \
1004 do { \
1005 device_create_file(&client->dev, \
1006 &sensor_dev_attr_sf2_point##offset##_fan##index.dev_attr); \
1007 } while (0)
1008
1009
1010 static ssize_t
1011 show_sf2_level(struct device *dev, struct device_attribute *attr,
1012                 char *buf)
1013 {
1014         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
1015         int nr = sensor_attr->nr;
1016         int index = sensor_attr->index;
1017         struct w83792d_data *data = w83792d_update_device(dev);
1018         return sprintf(buf, "%d\n",
1019                         (((data->sf2_levels[index-1][nr]) * 100) / 15));
1020 }
1021
1022 static ssize_t
1023 store_sf2_level(struct device *dev, struct device_attribute *attr,
1024                 const char *buf, size_t count)
1025 {
1026         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
1027         int nr = sensor_attr->nr;
1028         int index = sensor_attr->index - 1;
1029         struct i2c_client *client = to_i2c_client(dev);
1030         struct w83792d_data *data = i2c_get_clientdata(client);
1031         u32 val;
1032         u8 mask_tmp=0, level_tmp=0;
1033
1034         val = simple_strtoul(buf, NULL, 10);
1035         data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
1036         mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
1037                 & ((nr==3) ? 0xf0 : 0x0f);
1038         if (nr==3) {
1039                 level_tmp = data->sf2_levels[index][nr];
1040         } else {
1041                 level_tmp = data->sf2_levels[index][nr] << 4;
1042         }
1043         w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
1044
1045         return count;
1046 }
1047
1048 #define sysfs_sf2_level(offset, index) \
1049 static SENSOR_DEVICE_ATTR_2(sf2_level##offset##_fan##index, S_IRUGO | S_IWUSR, \
1050                                 show_sf2_level, store_sf2_level, offset, index);
1051
1052 sysfs_sf2_level(1, 1);  /* Fan1 */
1053 sysfs_sf2_level(2, 1);  /* Fan1 */
1054 sysfs_sf2_level(3, 1);  /* Fan1 */
1055 sysfs_sf2_level(1, 2);  /* Fan2 */
1056 sysfs_sf2_level(2, 2);  /* Fan2 */
1057 sysfs_sf2_level(3, 2);  /* Fan2 */
1058 sysfs_sf2_level(1, 3);  /* Fan3 */
1059 sysfs_sf2_level(2, 3);  /* Fan3 */
1060 sysfs_sf2_level(3, 3);  /* Fan3 */
1061
1062 #define device_create_file_sf2_level(client, offset, index) \
1063 do { \
1064 device_create_file(&client->dev, \
1065 &sensor_dev_attr_sf2_level##offset##_fan##index.dev_attr); \
1066 } while (0)
1067
1068
1069 /* This function is called when:
1070      * w83792d_driver is inserted (when this module is loaded), for each
1071        available adapter
1072      * when a new adapter is inserted (and w83792d_driver is still present) */
1073 static int
1074 w83792d_attach_adapter(struct i2c_adapter *adapter)
1075 {
1076         if (!(adapter->class & I2C_CLASS_HWMON))
1077                 return 0;
1078         return i2c_probe(adapter, &addr_data, w83792d_detect);
1079 }
1080
1081
1082 static int
1083 w83792d_create_subclient(struct i2c_adapter *adapter,
1084                                 struct i2c_client *new_client, int addr,
1085                                 struct i2c_client **sub_cli)
1086 {
1087         int err;
1088         struct i2c_client *sub_client;
1089
1090         (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
1091         if (!(sub_client)) {
1092                 return -ENOMEM;
1093         }
1094         sub_client->addr = 0x48 + addr;
1095         i2c_set_clientdata(sub_client, NULL);
1096         sub_client->adapter = adapter;
1097         sub_client->driver = &w83792d_driver;
1098         sub_client->flags = 0;
1099         strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
1100         if ((err = i2c_attach_client(sub_client))) {
1101                 dev_err(&new_client->dev, "subclient registration "
1102                         "at address 0x%x failed\n", sub_client->addr);
1103                 kfree(sub_client);
1104                 return err;
1105         }
1106         return 0;
1107 }
1108
1109
1110 static int
1111 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
1112                 struct i2c_client *new_client)
1113 {
1114         int i, id, err;
1115         u8 val;
1116         struct w83792d_data *data = i2c_get_clientdata(new_client);
1117
1118         id = i2c_adapter_id(adapter);
1119         if (force_subclients[0] == id && force_subclients[1] == address) {
1120                 for (i = 2; i <= 3; i++) {
1121                         if (force_subclients[i] < 0x48 ||
1122                             force_subclients[i] > 0x4f) {
1123                                 dev_err(&new_client->dev, "invalid subclient "
1124                                         "address %d; must be 0x48-0x4f\n",
1125                                         force_subclients[i]);
1126                                 err = -ENODEV;
1127                                 goto ERROR_SC_0;
1128                         }
1129                 }
1130                 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
1131                                         (force_subclients[2] & 0x07) |
1132                                         ((force_subclients[3] & 0x07) << 4));
1133         }
1134
1135         val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
1136         if (!(val & 0x08)) {
1137                 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
1138                                                 &data->lm75[0]);
1139                 if (err < 0)
1140                         goto ERROR_SC_0;
1141         }
1142         if (!(val & 0x80)) {
1143                 if ((data->lm75[0] != NULL) &&
1144                         ((val & 0x7) == ((val >> 4) & 0x7))) {
1145                         dev_err(&new_client->dev, "duplicate addresses 0x%x, "
1146                                 "use force_subclient\n", data->lm75[0]->addr);
1147                         err = -ENODEV;
1148                         goto ERROR_SC_1;
1149                 }
1150                 err = w83792d_create_subclient(adapter, new_client,
1151                                                 (val >> 4) & 0x7, &data->lm75[1]);
1152                 if (err < 0)
1153                         goto ERROR_SC_1;
1154         }
1155
1156         return 0;
1157
1158 /* Undo inits in case of errors */
1159
1160 ERROR_SC_1:
1161         if (data->lm75[0] != NULL) {
1162                 i2c_detach_client(data->lm75[0]);
1163                 kfree(data->lm75[0]);
1164         }
1165 ERROR_SC_0:
1166         return err;
1167 }
1168
1169
1170 static int
1171 w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1172 {
1173         int i = 0, val1 = 0, val2;
1174         struct i2c_client *new_client;
1175         struct w83792d_data *data;
1176         int err = 0;
1177         const char *client_name = "";
1178
1179         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1180                 goto ERROR0;
1181         }
1182
1183         /* OK. For now, we presume we have a valid client. We now create the
1184            client structure, even though we cannot fill it completely yet.
1185            But it allows us to access w83792d_{read,write}_value. */
1186
1187         if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1188                 err = -ENOMEM;
1189                 goto ERROR0;
1190         }
1191
1192         new_client = &data->client;
1193         i2c_set_clientdata(new_client, data);
1194         new_client->addr = address;
1195         init_MUTEX(&data->lock);
1196         new_client->adapter = adapter;
1197         new_client->driver = &w83792d_driver;
1198         new_client->flags = 0;
1199
1200         /* Now, we do the remaining detection. */
1201
1202         /* The w83792d may be stuck in some other bank than bank 0. This may
1203            make reading other information impossible. Specify a force=... or
1204            force_*=... parameter, and the Winbond will be reset to the right
1205            bank. */
1206         if (kind < 0) {
1207                 if (w83792d_read_value(new_client, W83792D_REG_CONFIG) & 0x80) {
1208                         dev_warn(&new_client->dev, "Detection failed at step "
1209                                 "3\n");
1210                         goto ERROR1;
1211                 }
1212                 val1 = w83792d_read_value(new_client, W83792D_REG_BANK);
1213                 val2 = w83792d_read_value(new_client, W83792D_REG_CHIPMAN);
1214                 /* Check for Winbond ID if in bank 0 */
1215                 if (!(val1 & 0x07)) {  /* is Bank0 */
1216                         if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1217                              ((val1 & 0x80) && (val2 != 0x5c))) {
1218                                 goto ERROR1;
1219                         }
1220                 }
1221                 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1222                    should match */
1223                 if (w83792d_read_value(new_client,
1224                                         W83792D_REG_I2C_ADDR) != address) {
1225                         dev_warn(&new_client->dev, "Detection failed "
1226                                 "at step 5\n");
1227                         goto ERROR1;
1228                 }
1229         }
1230
1231         /* We have either had a force parameter, or we have already detected the
1232            Winbond. Put it now into bank 0 and Vendor ID High Byte */
1233         w83792d_write_value(new_client,
1234                             W83792D_REG_BANK,
1235                             (w83792d_read_value(new_client,
1236                                 W83792D_REG_BANK) & 0x78) | 0x80);
1237
1238         /* Determine the chip type. */
1239         if (kind <= 0) {
1240                 /* get vendor ID */
1241                 val2 = w83792d_read_value(new_client, W83792D_REG_CHIPMAN);
1242                 if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
1243                         goto ERROR1;
1244                 }
1245                 val1 = w83792d_read_value(new_client, W83792D_REG_WCHIPID);
1246                 if (val1 == 0x7a && address >= 0x2c) {
1247                         kind = w83792d;
1248                 } else {
1249                         if (kind == 0)
1250                                         dev_warn(&new_client->dev,
1251                                         "w83792d: Ignoring 'force' parameter for"
1252                                         " unknown chip at adapter %d, address"
1253                                         " 0x%02x\n", i2c_adapter_id(adapter),
1254                                         address);
1255                         goto ERROR1;
1256                 }
1257         }
1258
1259         if (kind == w83792d) {
1260                 client_name = "w83792d";
1261         } else {
1262                 dev_err(&new_client->dev, "w83792d: Internal error: unknown"
1263                                           " kind (%d)?!?", kind);
1264                 goto ERROR1;
1265         }
1266
1267         /* Fill in the remaining client fields and put into the global list */
1268         strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
1269         data->type = kind;
1270
1271         data->valid = 0;
1272         init_MUTEX(&data->update_lock);
1273
1274         /* Tell the I2C layer a new client has arrived */
1275         if ((err = i2c_attach_client(new_client)))
1276                 goto ERROR1;
1277
1278         if ((err = w83792d_detect_subclients(adapter, address,
1279                         kind, new_client)))
1280                 goto ERROR2;
1281
1282         /* Initialize the chip */
1283         w83792d_init_client(new_client);
1284
1285         /* A few vars need to be filled upon startup */
1286         for (i = 0; i < 7; i++) {
1287                 data->fan_min[i] = w83792d_read_value(new_client,
1288                                         W83792D_REG_FAN_MIN[i]);
1289         }
1290
1291         /* Register sysfs hooks */
1292         data->class_dev = hwmon_device_register(&new_client->dev);
1293         if (IS_ERR(data->class_dev)) {
1294                 err = PTR_ERR(data->class_dev);
1295                 goto ERROR3;
1296         }
1297         device_create_file_in(new_client, 0);
1298         device_create_file_in(new_client, 1);
1299         device_create_file_in(new_client, 2);
1300         device_create_file_in(new_client, 3);
1301         device_create_file_in(new_client, 4);
1302         device_create_file_in(new_client, 5);
1303         device_create_file_in(new_client, 6);
1304         device_create_file_in(new_client, 7);
1305         device_create_file_in(new_client, 8);
1306
1307         device_create_file_fan(new_client, 1);
1308         device_create_file_fan(new_client, 2);
1309         device_create_file_fan(new_client, 3);
1310
1311         /* Read GPIO enable register to check if pins for fan 4,5 are used as
1312            GPIO */
1313         val1 = w83792d_read_value(new_client, W83792D_REG_GPIO_EN);
1314         if (!(val1 & 0x40))
1315                 device_create_file_fan(new_client, 4);
1316         if (!(val1 & 0x20))
1317                 device_create_file_fan(new_client, 5);
1318
1319         val1 = w83792d_read_value(new_client, W83792D_REG_PIN);
1320         if (val1 & 0x40)
1321                 device_create_file_fan(new_client, 6);
1322         if (val1 & 0x04)
1323                 device_create_file_fan(new_client, 7);
1324
1325         device_create_file_temp1(new_client);           /* Temp1 */
1326         device_create_file_temp_add(new_client, 2);     /* Temp2 */
1327         device_create_file_temp_add(new_client, 3);     /* Temp3 */
1328
1329         device_create_file_alarms(new_client);
1330
1331         device_create_file_pwm(new_client, 1);
1332         device_create_file_pwm(new_client, 2);
1333         device_create_file_pwm(new_client, 3);
1334
1335         device_create_file_pwmenable(new_client, 1);
1336         device_create_file_pwmenable(new_client, 2);
1337         device_create_file_pwmenable(new_client, 3);
1338
1339         device_create_file_pwm_mode(new_client, 1);
1340         device_create_file_pwm_mode(new_client, 2);
1341         device_create_file_pwm_mode(new_client, 3);
1342
1343         device_create_file_chassis(new_client);
1344         device_create_file_chassis_clear(new_client);
1345
1346         device_create_file_thermal_cruise(new_client, 1);
1347         device_create_file_thermal_cruise(new_client, 2);
1348         device_create_file_thermal_cruise(new_client, 3);
1349
1350         device_create_file_tolerance(new_client, 1);
1351         device_create_file_tolerance(new_client, 2);
1352         device_create_file_tolerance(new_client, 3);
1353
1354         device_create_file_sf2_point(new_client, 1, 1); /* Fan1 */
1355         device_create_file_sf2_point(new_client, 2, 1); /* Fan1 */
1356         device_create_file_sf2_point(new_client, 3, 1); /* Fan1 */
1357         device_create_file_sf2_point(new_client, 4, 1); /* Fan1 */
1358         device_create_file_sf2_point(new_client, 1, 2); /* Fan2 */
1359         device_create_file_sf2_point(new_client, 2, 2); /* Fan2 */
1360         device_create_file_sf2_point(new_client, 3, 2); /* Fan2 */
1361         device_create_file_sf2_point(new_client, 4, 2); /* Fan2 */
1362         device_create_file_sf2_point(new_client, 1, 3); /* Fan3 */
1363         device_create_file_sf2_point(new_client, 2, 3); /* Fan3 */
1364         device_create_file_sf2_point(new_client, 3, 3); /* Fan3 */
1365         device_create_file_sf2_point(new_client, 4, 3); /* Fan3 */
1366
1367         device_create_file_sf2_level(new_client, 1, 1); /* Fan1 */
1368         device_create_file_sf2_level(new_client, 2, 1); /* Fan1 */
1369         device_create_file_sf2_level(new_client, 3, 1); /* Fan1 */
1370         device_create_file_sf2_level(new_client, 1, 2); /* Fan2 */
1371         device_create_file_sf2_level(new_client, 2, 2); /* Fan2 */
1372         device_create_file_sf2_level(new_client, 3, 2); /* Fan2 */
1373         device_create_file_sf2_level(new_client, 1, 3); /* Fan3 */
1374         device_create_file_sf2_level(new_client, 2, 3); /* Fan3 */
1375         device_create_file_sf2_level(new_client, 3, 3); /* Fan3 */
1376
1377         return 0;
1378
1379 ERROR3:
1380         if (data->lm75[0] != NULL) {
1381                 i2c_detach_client(data->lm75[0]);
1382                 kfree(data->lm75[0]);
1383         }
1384         if (data->lm75[1] != NULL) {
1385                 i2c_detach_client(data->lm75[1]);
1386                 kfree(data->lm75[1]);
1387         }
1388 ERROR2:
1389         i2c_detach_client(new_client);
1390 ERROR1:
1391         kfree(data);
1392 ERROR0:
1393         return err;
1394 }
1395
1396 static int
1397 w83792d_detach_client(struct i2c_client *client)
1398 {
1399         struct w83792d_data *data = i2c_get_clientdata(client);
1400         int err;
1401
1402         /* main client */
1403         if (data)
1404                 hwmon_device_unregister(data->class_dev);
1405
1406         if ((err = i2c_detach_client(client)))
1407                 return err;
1408
1409         /* main client */
1410         if (data)
1411                 kfree(data);
1412         /* subclient */
1413         else
1414                 kfree(client);
1415
1416         return 0;
1417 }
1418
1419 /* The SMBus locks itself, usually, but nothing may access the Winbond between
1420    bank switches. ISA access must always be locked explicitly!
1421    We ignore the W83792D BUSY flag at this moment - it could lead to deadlocks,
1422    would slow down the W83792D access and should not be necessary.
1423    There are some ugly typecasts here, but the good news is - they should
1424    nowhere else be necessary! */
1425 static int
1426 w83792d_read_value(struct i2c_client *client, u8 reg)
1427 {
1428         int res=0;
1429         res = i2c_smbus_read_byte_data(client, reg);
1430
1431         return res;
1432 }
1433
1434 static int
1435 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
1436 {
1437         i2c_smbus_write_byte_data(client, reg,  value);
1438         return 0;
1439 }
1440
1441 static void
1442 w83792d_init_client(struct i2c_client *client)
1443 {
1444         u8 temp2_cfg, temp3_cfg, vid_in_b;
1445
1446         if (init) {
1447                 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1448         }
1449         /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1450            W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1451              vin0/vin1 can be modified by user;
1452            W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1453              vin0/vin1 auto-updated, can NOT be modified by user. */
1454         vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1455         w83792d_write_value(client, W83792D_REG_VID_IN_B,
1456                             vid_in_b & 0xbf);
1457
1458         temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1459         temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1460         w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1461                                 temp2_cfg & 0xe6);
1462         w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1463                                 temp3_cfg & 0xe6);
1464
1465         /* Start monitoring */
1466         w83792d_write_value(client, W83792D_REG_CONFIG,
1467                             (w83792d_read_value(client,
1468                                                 W83792D_REG_CONFIG) & 0xf7)
1469                             | 0x01);
1470 }
1471
1472 static struct w83792d_data *w83792d_update_device(struct device *dev)
1473 {
1474         struct i2c_client *client = to_i2c_client(dev);
1475         struct w83792d_data *data = i2c_get_clientdata(client);
1476         int i, j;
1477         u8 reg_array_tmp[4], pwm_array_tmp[7], reg_tmp;
1478
1479         down(&data->update_lock);
1480
1481         if (time_after
1482             (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1483             || time_before(jiffies, data->last_updated) || !data->valid) {
1484                 dev_dbg(dev, "Starting device update\n");
1485
1486                 /* Update the voltages measured value and limits */
1487                 for (i = 0; i < 9; i++) {
1488                         data->in[i] = w83792d_read_value(client,
1489                                                 W83792D_REG_IN[i]);
1490                         data->in_max[i] = w83792d_read_value(client,
1491                                                 W83792D_REG_IN_MAX[i]);
1492                         data->in_min[i] = w83792d_read_value(client,
1493                                                 W83792D_REG_IN_MIN[i]);
1494                 }
1495                 data->low_bits[0] = w83792d_read_value(client,
1496                                                 W83792D_REG_LOW_BITS1);
1497                 data->low_bits[1] = w83792d_read_value(client,
1498                                                 W83792D_REG_LOW_BITS2);
1499                 for (i = 0; i < 7; i++) {
1500                         /* Update the Fan measured value and limits */
1501                         data->fan[i] = w83792d_read_value(client,
1502                                                 W83792D_REG_FAN[i]);
1503                         data->fan_min[i] = w83792d_read_value(client,
1504                                                 W83792D_REG_FAN_MIN[i]);
1505                         /* Update the PWM/DC Value and PWM/DC flag */
1506                         pwm_array_tmp[i] = w83792d_read_value(client,
1507                                                 W83792D_REG_PWM[i]);
1508                         data->pwm[i] = pwm_array_tmp[i] & 0x0f;
1509                         data->pwm_mode[i] = (pwm_array_tmp[i] >> 7) & 0x01;
1510                 }
1511
1512                 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1513                 data->pwmenable[0] = reg_tmp & 0x03;
1514                 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1515                 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1516
1517                 for (i = 0; i < 3; i++) {
1518                         data->temp1[i] = w83792d_read_value(client,
1519                                                         W83792D_REG_TEMP1[i]);
1520                 }
1521                 for (i = 0; i < 2; i++) {
1522                         for (j = 0; j < 6; j++) {
1523                                 data->temp_add[i][j] = w83792d_read_value(
1524                                         client,W83792D_REG_TEMP_ADD[i][j]);
1525                         }
1526                 }
1527
1528                 /* Update the Fan Divisor */
1529                 for (i = 0; i < 4; i++) {
1530                         reg_array_tmp[i] = w83792d_read_value(client,
1531                                                         W83792D_REG_FAN_DIV[i]);
1532                 }
1533                 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1534                 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1535                 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1536                 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1537                 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1538                 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1539                 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1540
1541                 /* Update the realtime status */
1542                 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1543                         (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1544                         (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1545
1546                 /* Update CaseOpen status and it's CLR_CHS. */
1547                 data->chassis = (w83792d_read_value(client,
1548                         W83792D_REG_CHASSIS) >> 5) & 0x01;
1549                 data->chassis_clear = (w83792d_read_value(client,
1550                         W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1551
1552                 /* Update Thermal Cruise/Smart Fan I target value */
1553                 for (i = 0; i < 3; i++) {
1554                         data->thermal_cruise[i] =
1555                                 w83792d_read_value(client,
1556                                 W83792D_REG_THERMAL[i]) & 0x7f;
1557                 }
1558
1559                 /* Update Smart Fan I/II tolerance */
1560                 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1561                 data->tolerance[0] = reg_tmp & 0x0f;
1562                 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1563                 data->tolerance[2] = w83792d_read_value(client,
1564                                         W83792D_REG_TOLERANCE[2]) & 0x0f;
1565
1566                 /* Update Smart Fan II temperature points */
1567                 for (i = 0; i < 3; i++) {
1568                         for (j = 0; j < 4; j++) {
1569                                 data->sf2_points[i][j] = w83792d_read_value(
1570                                         client,W83792D_REG_POINTS[i][j]) & 0x7f;
1571                         }
1572                 }
1573
1574                 /* Update Smart Fan II duty cycle levels */
1575                 for (i = 0; i < 3; i++) {
1576                         reg_tmp = w83792d_read_value(client,
1577                                                 W83792D_REG_LEVELS[i][0]);
1578                         data->sf2_levels[i][0] = reg_tmp & 0x0f;
1579                         data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1580                         reg_tmp = w83792d_read_value(client,
1581                                                 W83792D_REG_LEVELS[i][2]);
1582                         data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1583                         data->sf2_levels[i][3] = reg_tmp & 0x0f;
1584                 }
1585
1586                 data->last_updated = jiffies;
1587                 data->valid = 1;
1588         }
1589
1590         up(&data->update_lock);
1591
1592 #ifdef DEBUG
1593         w83792d_print_debug(data, dev);
1594 #endif
1595
1596         return data;
1597 }
1598
1599 #ifdef DEBUG
1600 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1601 {
1602         int i=0, j=0;
1603         dev_dbg(dev, "==========The following is the debug message...========\n");
1604         dev_dbg(dev, "9 set of Voltages: =====>\n");
1605         for (i=0; i<9; i++) {
1606                 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1607                 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1608                 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1609         }
1610         dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits[0]);
1611         dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits[1]);
1612         dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1613         for (i=0; i<7; i++) {
1614                 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1615                 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1616                 dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1617                 dev_dbg(dev, "pwm_mode[%d] is: 0x%x\n", i, data->pwm_mode[i]);
1618         }
1619         dev_dbg(dev, "3 set of Temperatures: =====>\n");
1620         for (i=0; i<3; i++) {
1621                 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1622         }
1623
1624         for (i=0; i<2; i++) {
1625                 for (j=0; j<6; j++) {
1626                         dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1627                                                         data->temp_add[i][j]);
1628                 }
1629         }
1630
1631         for (i=0; i<7; i++) {
1632                 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1633         }
1634         dev_dbg(dev, "==========End of the debug message...==================\n");
1635         dev_dbg(dev, "\n");
1636 }
1637 #endif
1638
1639 static int __init
1640 sensors_w83792d_init(void)
1641 {
1642         return i2c_add_driver(&w83792d_driver);
1643 }
1644
1645 static void __exit
1646 sensors_w83792d_exit(void)
1647 {
1648         i2c_del_driver(&w83792d_driver);
1649 }
1650
1651 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1652 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1653 MODULE_LICENSE("GPL");
1654
1655 module_init(sensors_w83792d_init);
1656 module_exit(sensors_w83792d_exit);
1657