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   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         enum chips type;
 273
 274         struct semaphore update_lock;
 275         char valid;             /* !=0 if following fields are valid */
 276         unsigned long last_updated;     /* In jiffies */
 277
 278         /* array of 2 pointers to subclients */
 279         struct i2c_client *lm75[2];
 280
 281         u8 in[9];               /* Register value */
 282         u8 in_max[9];           /* Register value */
 283         u8 in_min[9];           /* Register value */
 284         u8 low_bits[2];         /* Additional resolution to voltage in0-6 */
 285         u8 fan[7];              /* Register value */
 286         u8 fan_min[7];          /* Register value */
 287         u8 temp1[3];            /* current, over, thyst */
 288         u8 temp_add[2][6];      /* Register value */
 289         u8 fan_div[7];          /* Register encoding, shifted right */
 290         u8 pwm[7];              /* We only consider the first 3 set of pwm,
 291                                    although 792 chip has 7 set of pwm. */
 292         u8 pwmenable[3];
 293         u8 pwm_mode[7];         /* indicates PWM or DC mode: 1->PWM; 0->DC */
 294         u32 alarms;             /* realtime status register encoding,combined */
 295         u8 chassis;             /* Chassis status */
 296         u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
 297         u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
 298         u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
 299         u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
 300         u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
 301 };
 302
 303 static int w83792d_attach_adapter(struct i2c_adapter *adapter);
 304 static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
 305 static int w83792d_detach_client(struct i2c_client *client);
 306
 307 static int w83792d_read_value(struct i2c_client *client, u8 register);
 308 static int w83792d_write_value(struct i2c_client *client, u8 register,
 309                                 u8 value);
 310 static struct w83792d_data *w83792d_update_device(struct device *dev);
 311
 312 #ifdef DEBUG
 313 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
 314 #endif
 315
 316 static void w83792d_init_client(struct i2c_client *client);
 317
 318 static struct i2c_driver w83792d_driver = {
 319         .driver = {
 320                 .name = "w83792d",
 321         },
 322         .attach_adapter = w83792d_attach_adapter,
 323         .detach_client = w83792d_detach_client,
 324 };
 325
 326 static long in_count_from_reg(int nr, struct w83792d_data *data)
 327 {
 328         u16 vol_count = data->in[nr];
 329         u16 low_bits = 0;
 330         vol_count = (vol_count << 2);
 331         switch (nr)
 332         {
 333         case 0:  /* vin0 */
 334                 low_bits = (data->low_bits[0]) & 0x03;
 335                 break;
 336         case 1:  /* vin1 */
 337                 low_bits = ((data->low_bits[0]) & 0x0c) >> 2;
 338                 break;
 339         case 2:  /* vin2 */
 340                 low_bits = ((data->low_bits[0]) & 0x30) >> 4;
 341                 break;
 342         case 3:  /* vin3 */
 343                 low_bits = ((data->low_bits[0]) & 0xc0) >> 6;
 344                 break;
 345         case 4:  /* vin4 */
 346                 low_bits = (data->low_bits[1]) & 0x03;
 347                 break;
 348         case 5:  /* vin5 */
 349                 low_bits = ((data->low_bits[1]) & 0x0c) >> 2;
 350                 break;
 351         case 6:  /* vin6 */
 352                 low_bits = ((data->low_bits[1]) & 0x30) >> 4;
 353         default:
 354                 break;
 355         }
 356         vol_count = vol_count | low_bits;
 357         return vol_count;
 358 }
 359
 360 /* following are the sysfs callback functions */
 361 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 362                         char *buf)
 363 {
 364         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 365         int nr = sensor_attr->index;
 366         struct w83792d_data *data = w83792d_update_device(dev);
 367         return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
 368 }
 369
 370 #define show_in_reg(reg) \
 371 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 372                         char *buf) \
 373 { \
 374         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 375         int nr = sensor_attr->index; \
 376         struct w83792d_data *data = w83792d_update_device(dev); \
 377         return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
 378 }
 379
 380 show_in_reg(in_min);
 381 show_in_reg(in_max);
 382
 383 #define store_in_reg(REG, reg) \
 384 static ssize_t store_in_##reg (struct device *dev, \
 385                                 struct device_attribute *attr, \
 386                                 const char *buf, size_t count) \
 387 { \
 388         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 389         int nr = sensor_attr->index; \
 390         struct i2c_client *client = to_i2c_client(dev); \
 391         struct w83792d_data *data = i2c_get_clientdata(client); \
 392         u32 val; \
 393          \
 394         val = simple_strtoul(buf, NULL, 10); \
 395         data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
 396         w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
 397          \
 398         return count; \
 399 }
 400 store_in_reg(MIN, min);
 401 store_in_reg(MAX, max);
 402
 403 #define sysfs_in_reg(offset) \
 404 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \
 405                                 NULL, offset); \
 406 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
 407                                 show_in_min, store_in_min, offset); \
 408 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
 409                                 show_in_max, store_in_max, offset);
 410
 411 sysfs_in_reg(0);
 412 sysfs_in_reg(1);
 413 sysfs_in_reg(2);
 414 sysfs_in_reg(3);
 415 sysfs_in_reg(4);
 416 sysfs_in_reg(5);
 417 sysfs_in_reg(6);
 418 sysfs_in_reg(7);
 419 sysfs_in_reg(8);
 420
 421 #define device_create_file_in(client, offset) \
 422 do { \
 423 device_create_file(&client->dev, &sensor_dev_attr_in##offset##_input.dev_attr); \
 424 device_create_file(&client->dev, &sensor_dev_attr_in##offset##_max.dev_attr); \
 425 device_create_file(&client->dev, &sensor_dev_attr_in##offset##_min.dev_attr); \
 426 } while (0)
 427
 428 #define show_fan_reg(reg) \
 429 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
 430                         char *buf) \
 431 { \
 432         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 433         int nr = sensor_attr->index - 1; \
 434         struct w83792d_data *data = w83792d_update_device(dev); \
 435         return sprintf(buf,"%d\n", \
 436                 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 437 }
 438
 439 show_fan_reg(fan);
 440 show_fan_reg(fan_min);
 441
 442 static ssize_t
 443 store_fan_min(struct device *dev, struct device_attribute *attr,
 444                 const char *buf, size_t count)
 445 {
 446         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 447         int nr = sensor_attr->index - 1;
 448         struct i2c_client *client = to_i2c_client(dev);
 449         struct w83792d_data *data = i2c_get_clientdata(client);
 450         u32 val;
 451
 452         val = simple_strtoul(buf, NULL, 10);
 453         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 454         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
 455                                 data->fan_min[nr]);
 456
 457         return count;
 458 }
 459
 460 static ssize_t
 461 show_fan_div(struct device *dev, struct device_attribute *attr,
 462                 char *buf)
 463 {
 464         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 465         int nr = sensor_attr->index;
 466         struct w83792d_data *data = w83792d_update_device(dev);
 467         return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
 468 }
 469
 470 /* Note: we save and restore the fan minimum here, because its value is
 471    determined in part by the fan divisor.  This follows the principle of
 472    least suprise; the user doesn't expect the fan minimum to change just
 473    because the divisor changed. */
 474 static ssize_t
 475 store_fan_div(struct device *dev, struct device_attribute *attr,
 476                 const char *buf, size_t count)
 477 {
 478         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 479         int nr = sensor_attr->index - 1;
 480         struct i2c_client *client = to_i2c_client(dev);
 481         struct w83792d_data *data = i2c_get_clientdata(client);
 482         unsigned long min;
 483         /*u8 reg;*/
 484         u8 fan_div_reg = 0;
 485         u8 tmp_fan_div;
 486
 487         /* Save fan_min */
 488         min = FAN_FROM_REG(data->fan_min[nr],
 489                            DIV_FROM_REG(data->fan_div[nr]));
 490
 491         data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
 492
 493         fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
 494         fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
 495         tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
 496                                         : ((data->fan_div[nr]) & 0x07);
 497         w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
 498                                         fan_div_reg | tmp_fan_div);
 499
 500         /* Restore fan_min */
 501         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 502         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
 503
 504         return count;
 505 }
 506
 507 #define sysfs_fan(offset) \
 508 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \
 509                                 offset); \
 510 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
 511                                 show_fan_div, store_fan_div, offset); \
 512 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
 513                                 show_fan_min, store_fan_min, offset);
 514
 515 sysfs_fan(1);
 516 sysfs_fan(2);
 517 sysfs_fan(3);
 518 sysfs_fan(4);
 519 sysfs_fan(5);
 520 sysfs_fan(6);
 521 sysfs_fan(7);
 522
 523 #define device_create_file_fan(client, offset) \
 524 do { \
 525 device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_input.dev_attr); \
 526 device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_div.dev_attr); \
 527 device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_min.dev_attr); \
 528 } while (0)
 529
 530
 531 /* read/write the temperature1, includes measured value and limits */
 532
 533 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
 534                                 char *buf)
 535 {
 536         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 537         int nr = sensor_attr->index;
 538         struct w83792d_data *data = w83792d_update_device(dev);
 539         return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
 540 }
 541
 542 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
 543                                 const char *buf, size_t count)
 544 {
 545         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 546         int nr = sensor_attr->index;
 547         struct i2c_client *client = to_i2c_client(dev);
 548         struct w83792d_data *data = i2c_get_clientdata(client);
 549         s32 val;
 550
 551         val = simple_strtol(buf, NULL, 10);
 552
 553         data->temp1[nr] = TEMP1_TO_REG(val);
 554         w83792d_write_value(client, W83792D_REG_TEMP1[nr],
 555                 data->temp1[nr]);
 556
 557         return count;
 558 }
 559
 560
 561 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0);
 562 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1,
 563                                 store_temp1, 1);
 564 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1,
 565                                 store_temp1, 2);
 566
 567 #define device_create_file_temp1(client) \
 568 do { \
 569 device_create_file(&client->dev, &sensor_dev_attr_temp1_input.dev_attr); \
 570 device_create_file(&client->dev, &sensor_dev_attr_temp1_max.dev_attr); \
 571 device_create_file(&client->dev, &sensor_dev_attr_temp1_max_hyst.dev_attr); \
 572 } while (0)
 573
 574
 575 /* read/write the temperature2-3, includes measured value and limits */
 576
 577 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
 578                                 char *buf)
 579 {
 580         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 581         int nr = sensor_attr->nr;
 582         int index = sensor_attr->index;
 583         struct w83792d_data *data = w83792d_update_device(dev);
 584         return sprintf(buf,"%ld\n",
 585                 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
 586                         data->temp_add[nr][index+1]));
 587 }
 588
 589 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
 590                                 const char *buf, size_t count)
 591 {
 592         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 593         int nr = sensor_attr->nr;
 594         int index = sensor_attr->index;
 595         struct i2c_client *client = to_i2c_client(dev);
 596         struct w83792d_data *data = i2c_get_clientdata(client);
 597         s32 val;
 598
 599         val = simple_strtol(buf, NULL, 10);
 600
 601         data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
 602         data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
 603         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
 604                 data->temp_add[nr][index]);
 605         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
 606                 data->temp_add[nr][index+1]);
 607
 608         return count;
 609 }
 610
 611 #define sysfs_temp23(name,idx) \
 612 static SENSOR_DEVICE_ATTR_2(name##_input, S_IRUGO, show_temp23, NULL, \
 613                                 idx, 0); \
 614 static SENSOR_DEVICE_ATTR_2(name##_max, S_IRUGO | S_IWUSR, \
 615                                 show_temp23, store_temp23, idx, 2); \
 616 static SENSOR_DEVICE_ATTR_2(name##_max_hyst, S_IRUGO | S_IWUSR, \
 617                                 show_temp23, store_temp23, idx, 4);
 618
 619 sysfs_temp23(temp2,0)
 620 sysfs_temp23(temp3,1)
 621
 622 #define device_create_file_temp_add(client, offset) \
 623 do { \
 624 device_create_file(&client->dev, &sensor_dev_attr_temp##offset##_input.dev_attr); \
 625 device_create_file(&client->dev, &sensor_dev_attr_temp##offset##_max.dev_attr); \
 626 device_create_file(&client->dev, \
 627 &sensor_dev_attr_temp##offset##_max_hyst.dev_attr); \
 628 } while (0)
 629
 630
 631 /* get reatime status of all sensors items: voltage, temp, fan */
 632 static ssize_t
 633 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 634 {
 635         struct w83792d_data *data = w83792d_update_device(dev);
 636         return sprintf(buf, "%d\n", data->alarms);
 637 }
 638
 639 static
 640 DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 641 #define device_create_file_alarms(client) \
 642 device_create_file(&client->dev, &dev_attr_alarms);
 643
 644
 645
 646 static ssize_t
 647 show_pwm(struct device *dev, struct device_attribute *attr,
 648                 char *buf)
 649 {
 650         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 651         int nr = sensor_attr->index;
 652         struct w83792d_data *data = w83792d_update_device(dev);
 653         return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr-1]));
 654 }
 655
 656 static ssize_t
 657 show_pwmenable(struct device *dev, struct device_attribute *attr,
 658                         char *buf)
 659 {
 660         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 661         int nr = sensor_attr->index - 1;
 662         struct w83792d_data *data = w83792d_update_device(dev);
 663         long pwm_enable_tmp = 1;
 664
 665         switch (data->pwmenable[nr]) {
 666         case 0:
 667                 pwm_enable_tmp = 1; /* manual mode */
 668                 break;
 669         case 1:
 670                 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
 671                 break;
 672         case 2:
 673                 pwm_enable_tmp = 2; /* Smart Fan II */
 674                 break;
 675         }
 676
 677         return sprintf(buf, "%ld\n", pwm_enable_tmp);
 678 }
 679
 680 static ssize_t
 681 store_pwm(struct device *dev, struct device_attribute *attr,
 682                 const char *buf, size_t count)
 683 {
 684         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 685         int nr = sensor_attr->index - 1;
 686         struct i2c_client *client = to_i2c_client(dev);
 687         struct w83792d_data *data = i2c_get_clientdata(client);
 688         u32 val;
 689
 690         val = simple_strtoul(buf, NULL, 10);
 691         data->pwm[nr] = PWM_TO_REG(val);
 692         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 693
 694         return count;
 695 }
 696
 697 static ssize_t
 698 store_pwmenable(struct device *dev, struct device_attribute *attr,
 699                         const char *buf, size_t count)
 700 {
 701         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 702         int nr = sensor_attr->index - 1;
 703         struct i2c_client *client = to_i2c_client(dev);
 704         struct w83792d_data *data = i2c_get_clientdata(client);
 705         u32 val;
 706         u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
 707
 708         val = simple_strtoul(buf, NULL, 10);
 709         switch (val) {
 710         case 1:
 711                 data->pwmenable[nr] = 0; /* manual mode */
 712                 break;
 713         case 2:
 714                 data->pwmenable[nr] = 2; /* Smart Fan II */
 715                 break;
 716         case 3:
 717                 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
 718                 break;
 719         default:
 720                 return -EINVAL;
 721         }
 722         cfg1_tmp = data->pwmenable[0];
 723         cfg2_tmp = (data->pwmenable[1]) << 2;
 724         cfg3_tmp = (data->pwmenable[2]) << 4;
 725         cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
 726         fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
 727         w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
 728
 729         return count;
 730 }
 731
 732 #define sysfs_pwm(offset) \
 733 static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
 734                                 show_pwm, store_pwm, offset); \
 735 static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
 736                                 show_pwmenable, store_pwmenable, offset); \
 737
 738 sysfs_pwm(1);
 739 sysfs_pwm(2);
 740 sysfs_pwm(3);
 741
 742
 743 #define device_create_file_pwm(client, offset) \
 744 do { \
 745 device_create_file(&client->dev, &sensor_dev_attr_pwm##offset.dev_attr); \
 746 } while (0)
 747
 748 #define device_create_file_pwmenable(client, offset) \
 749 do { \
 750 device_create_file(&client->dev, &sensor_dev_attr_pwm##offset##_enable.dev_attr); \
 751 } while (0)
 752
 753
 754 static ssize_t
 755 show_pwm_mode(struct device *dev, struct device_attribute *attr,
 756                         char *buf)
 757 {
 758         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 759         int nr = sensor_attr->index;
 760         struct w83792d_data *data = w83792d_update_device(dev);
 761         return sprintf(buf, "%d\n", data->pwm_mode[nr-1]);
 762 }
 763
 764 static ssize_t
 765 store_pwm_mode(struct device *dev, struct device_attribute *attr,
 766                         const char *buf, size_t count)
 767 {
 768         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 769         int nr = sensor_attr->index - 1;
 770         struct i2c_client *client = to_i2c_client(dev);
 771         struct w83792d_data *data = i2c_get_clientdata(client);
 772         u32 val;
 773         u8 pwm_mode_mask = 0;
 774
 775         val = simple_strtoul(buf, NULL, 10);
 776         data->pwm_mode[nr] = SENSORS_LIMIT(val, 0, 1);
 777         pwm_mode_mask = w83792d_read_value(client,
 778                 W83792D_REG_PWM[nr]) & 0x7f;
 779         w83792d_write_value(client, W83792D_REG_PWM[nr],
 780                 ((data->pwm_mode[nr]) << 7) | pwm_mode_mask);
 781
 782         return count;
 783 }
 784
 785 #define sysfs_pwm_mode(offset) \
 786 static SENSOR_DEVICE_ATTR(pwm##offset##_mode, S_IRUGO | S_IWUSR, \
 787                                 show_pwm_mode, store_pwm_mode, offset);
 788
 789 sysfs_pwm_mode(1);
 790 sysfs_pwm_mode(2);
 791 sysfs_pwm_mode(3);
 792
 793 #define device_create_file_pwm_mode(client, offset) \
 794 do { \
 795 device_create_file(&client->dev, &sensor_dev_attr_pwm##offset##_mode.dev_attr); \
 796 } while (0)
 797
 798
 799 static ssize_t
 800 show_regs_chassis(struct device *dev, struct device_attribute *attr,
 801                         char *buf)
 802 {
 803         struct w83792d_data *data = w83792d_update_device(dev);
 804         return sprintf(buf, "%d\n", data->chassis);
 805 }
 806
 807 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
 808
 809 #define device_create_file_chassis(client) \
 810 do { \
 811 device_create_file(&client->dev, &dev_attr_chassis); \
 812 } while (0)
 813
 814
 815 static ssize_t
 816 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
 817 {
 818         struct w83792d_data *data = w83792d_update_device(dev);
 819         return sprintf(buf, "%d\n", data->chassis_clear);
 820 }
 821
 822 static ssize_t
 823 store_chassis_clear(struct device *dev, struct device_attribute *attr,
 824                         const char *buf, size_t count)
 825 {
 826         struct i2c_client *client = to_i2c_client(dev);
 827         struct w83792d_data *data = i2c_get_clientdata(client);
 828         u32 val;
 829         u8 temp1 = 0, temp2 = 0;
 830
 831         val = simple_strtoul(buf, NULL, 10);
 832
 833         data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
 834         temp1 = ((data->chassis_clear) << 7) & 0x80;
 835         temp2 = w83792d_read_value(client,
 836                 W83792D_REG_CHASSIS_CLR) & 0x7f;
 837         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
 838
 839         return count;
 840 }
 841
 842 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
 843                 show_chassis_clear, store_chassis_clear);
 844
 845 #define device_create_file_chassis_clear(client) \
 846 do { \
 847 device_create_file(&client->dev, &dev_attr_chassis_clear); \
 848 } while (0)
 849
 850
 851
 852 /* For Smart Fan I / Thermal Cruise */
 853 static ssize_t
 854 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
 855                         char *buf)
 856 {
 857         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 858         int nr = sensor_attr->index;
 859         struct w83792d_data *data = w83792d_update_device(dev);
 860         return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
 861 }
 862
 863 static ssize_t
 864 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
 865                         const char *buf, size_t count)
 866 {
 867         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 868         int nr = sensor_attr->index - 1;
 869         struct i2c_client *client = to_i2c_client(dev);
 870         struct w83792d_data *data = i2c_get_clientdata(client);
 871         u32 val;
 872         u8 target_tmp=0, target_mask=0;
 873
 874         val = simple_strtoul(buf, NULL, 10);
 875         target_tmp = val;
 876         target_tmp = target_tmp & 0x7f;
 877         target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
 878         data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
 879         w83792d_write_value(client, W83792D_REG_THERMAL[nr],
 880                 (data->thermal_cruise[nr]) | target_mask);
 881
 882         return count;
 883 }
 884
 885 #define sysfs_thermal_cruise(offset) \
 886 static SENSOR_DEVICE_ATTR(thermal_cruise##offset, S_IRUGO | S_IWUSR, \
 887                         show_thermal_cruise, store_thermal_cruise, offset);
 888
 889 sysfs_thermal_cruise(1);
 890 sysfs_thermal_cruise(2);
 891 sysfs_thermal_cruise(3);
 892
 893 #define device_create_file_thermal_cruise(client, offset) \
 894 do { \
 895 device_create_file(&client->dev, \
 896 &sensor_dev_attr_thermal_cruise##offset.dev_attr); \
 897 } while (0)
 898
 899
 900 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
 901 static ssize_t
 902 show_tolerance(struct device *dev, struct device_attribute *attr,
 903                 char *buf)
 904 {
 905         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 906         int nr = sensor_attr->index;
 907         struct w83792d_data *data = w83792d_update_device(dev);
 908         return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
 909 }
 910
 911 static ssize_t
 912 store_tolerance(struct device *dev, struct device_attribute *attr,
 913                 const char *buf, size_t count)
 914 {
 915         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 916         int nr = sensor_attr->index - 1;
 917         struct i2c_client *client = to_i2c_client(dev);
 918         struct w83792d_data *data = i2c_get_clientdata(client);
 919         u32 val;
 920         u8 tol_tmp, tol_mask;
 921
 922         val = simple_strtoul(buf, NULL, 10);
 923         tol_mask = w83792d_read_value(client,
 924                 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
 925         tol_tmp = SENSORS_LIMIT(val, 0, 15);
 926         tol_tmp &= 0x0f;
 927         data->tolerance[nr] = tol_tmp;
 928         if (nr == 1) {
 929                 tol_tmp <<= 4;
 930         }
 931         w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
 932                 tol_mask | tol_tmp);
 933
 934         return count;
 935 }
 936
 937 #define sysfs_tolerance(offset) \
 938 static SENSOR_DEVICE_ATTR(tolerance##offset, S_IRUGO | S_IWUSR, \
 939                                 show_tolerance, store_tolerance, offset);
 940
 941 sysfs_tolerance(1);
 942 sysfs_tolerance(2);
 943 sysfs_tolerance(3);
 944
 945 #define device_create_file_tolerance(client, offset) \
 946 do { \
 947 device_create_file(&client->dev, &sensor_dev_attr_tolerance##offset.dev_attr); \
 948 } while (0)
 949
 950
 951 /* For Smart Fan II */
 952 static ssize_t
 953 show_sf2_point(struct device *dev, struct device_attribute *attr,
 954                 char *buf)
 955 {
 956         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 957         int nr = sensor_attr->nr;
 958         int index = sensor_attr->index;
 959         struct w83792d_data *data = w83792d_update_device(dev);
 960         return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
 961 }
 962
 963 static ssize_t
 964 store_sf2_point(struct device *dev, struct device_attribute *attr,
 965                 const char *buf, size_t count)
 966 {
 967         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 968         int nr = sensor_attr->nr - 1;
 969         int index = sensor_attr->index - 1;
 970         struct i2c_client *client = to_i2c_client(dev);
 971         struct w83792d_data *data = i2c_get_clientdata(client);
 972         u32 val;
 973         u8 mask_tmp = 0;
 974
 975         val = simple_strtoul(buf, NULL, 10);
 976         data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
 977         mask_tmp = w83792d_read_value(client,
 978                                         W83792D_REG_POINTS[index][nr]) & 0x80;
 979         w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
 980                 mask_tmp|data->sf2_points[index][nr]);
 981
 982         return count;
 983 }
 984
 985 #define sysfs_sf2_point(offset, index) \
 986 static SENSOR_DEVICE_ATTR_2(sf2_point##offset##_fan##index, S_IRUGO | S_IWUSR, \
 987                                 show_sf2_point, store_sf2_point, offset, index);
 988
 989 sysfs_sf2_point(1, 1);  /* Fan1 */
 990 sysfs_sf2_point(2, 1);  /* Fan1 */
 991 sysfs_sf2_point(3, 1);  /* Fan1 */
 992 sysfs_sf2_point(4, 1);  /* Fan1 */
 993 sysfs_sf2_point(1, 2);  /* Fan2 */
 994 sysfs_sf2_point(2, 2);  /* Fan2 */
 995 sysfs_sf2_point(3, 2);  /* Fan2 */
 996 sysfs_sf2_point(4, 2);  /* Fan2 */
 997 sysfs_sf2_point(1, 3);  /* Fan3 */
 998 sysfs_sf2_point(2, 3);  /* Fan3 */
 999 sysfs_sf2_point(3, 3);  /* Fan3 */
1000 sysfs_sf2_point(4, 3);  /* Fan3 */
1001
1002 #define device_create_file_sf2_point(client, offset, index) \
1003 do { \
1004 device_create_file(&client->dev, \
1005 &sensor_dev_attr_sf2_point##offset##_fan##index.dev_attr); \
1006 } while (0)
1007
1008
1009 static ssize_t
1010 show_sf2_level(struct device *dev, struct device_attribute *attr,
1011                 char *buf)
1012 {
1013         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
1014         int nr = sensor_attr->nr;
1015         int index = sensor_attr->index;
1016         struct w83792d_data *data = w83792d_update_device(dev);
1017         return sprintf(buf, "%d\n",
1018                         (((data->sf2_levels[index-1][nr]) * 100) / 15));
1019 }
1020
1021 static ssize_t
1022 store_sf2_level(struct device *dev, struct device_attribute *attr,
1023                 const char *buf, size_t count)
1024 {
1025         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
1026         int nr = sensor_attr->nr;
1027         int index = sensor_attr->index - 1;
1028         struct i2c_client *client = to_i2c_client(dev);
1029         struct w83792d_data *data = i2c_get_clientdata(client);
1030         u32 val;
1031         u8 mask_tmp=0, level_tmp=0;
1032
1033         val = simple_strtoul(buf, NULL, 10);
1034         data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
1035         mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
1036                 & ((nr==3) ? 0xf0 : 0x0f);
1037         if (nr==3) {
1038                 level_tmp = data->sf2_levels[index][nr];
1039         } else {
1040                 level_tmp = data->sf2_levels[index][nr] << 4;
1041         }
1042         w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
1043
1044         return count;
1045 }
1046
1047 #define sysfs_sf2_level(offset, index) \
1048 static SENSOR_DEVICE_ATTR_2(sf2_level##offset##_fan##index, S_IRUGO | S_IWUSR, \
1049                                 show_sf2_level, store_sf2_level, offset, index);
1050
1051 sysfs_sf2_level(1, 1);  /* Fan1 */
1052 sysfs_sf2_level(2, 1);  /* Fan1 */
1053 sysfs_sf2_level(3, 1);  /* Fan1 */
1054 sysfs_sf2_level(1, 2);  /* Fan2 */
1055 sysfs_sf2_level(2, 2);  /* Fan2 */
1056 sysfs_sf2_level(3, 2);  /* Fan2 */
1057 sysfs_sf2_level(1, 3);  /* Fan3 */
1058 sysfs_sf2_level(2, 3);  /* Fan3 */
1059 sysfs_sf2_level(3, 3);  /* Fan3 */
1060
1061 #define device_create_file_sf2_level(client, offset, index) \
1062 do { \
1063 device_create_file(&client->dev, \
1064 &sensor_dev_attr_sf2_level##offset##_fan##index.dev_attr); \
1065 } while (0)
1066
1067
1068 /* This function is called when:
1069      * w83792d_driver is inserted (when this module is loaded), for each
1070        available adapter
1071      * when a new adapter is inserted (and w83792d_driver is still present) */
1072 static int
1073 w83792d_attach_adapter(struct i2c_adapter *adapter)
1074 {
1075         if (!(adapter->class & I2C_CLASS_HWMON))
1076                 return 0;
1077         return i2c_probe(adapter, &addr_data, w83792d_detect);
1078 }
1079
1080
1081 static int
1082 w83792d_create_subclient(struct i2c_adapter *adapter,
1083                                 struct i2c_client *new_client, int addr,
1084                                 struct i2c_client **sub_cli)
1085 {
1086         int err;
1087         struct i2c_client *sub_client;
1088
1089         (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
1090         if (!(sub_client)) {
1091                 return -ENOMEM;
1092         }
1093         sub_client->addr = 0x48 + addr;
1094         i2c_set_clientdata(sub_client, NULL);
1095         sub_client->adapter = adapter;
1096         sub_client->driver = &w83792d_driver;
1097         sub_client->flags = 0;
1098         strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
1099         if ((err = i2c_attach_client(sub_client))) {
1100                 dev_err(&new_client->dev, "subclient registration "
1101                         "at address 0x%x failed\n", sub_client->addr);
1102                 kfree(sub_client);
1103                 return err;
1104         }
1105         return 0;
1106 }
1107
1108
1109 static int
1110 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
1111                 struct i2c_client *new_client)
1112 {
1113         int i, id, err;
1114         u8 val;
1115         struct w83792d_data *data = i2c_get_clientdata(new_client);
1116
1117         id = i2c_adapter_id(adapter);
1118         if (force_subclients[0] == id && force_subclients[1] == address) {
1119                 for (i = 2; i <= 3; i++) {
1120                         if (force_subclients[i] < 0x48 ||
1121                             force_subclients[i] > 0x4f) {
1122                                 dev_err(&new_client->dev, "invalid subclient "
1123                                         "address %d; must be 0x48-0x4f\n",
1124                                         force_subclients[i]);
1125                                 err = -ENODEV;
1126                                 goto ERROR_SC_0;
1127                         }
1128                 }
1129                 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
1130                                         (force_subclients[2] & 0x07) |
1131                                         ((force_subclients[3] & 0x07) << 4));
1132         }
1133
1134         val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
1135         if (!(val & 0x08)) {
1136                 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
1137                                                 &data->lm75[0]);
1138                 if (err < 0)
1139                         goto ERROR_SC_0;
1140         }
1141         if (!(val & 0x80)) {
1142                 if ((data->lm75[0] != NULL) &&
1143                         ((val & 0x7) == ((val >> 4) & 0x7))) {
1144                         dev_err(&new_client->dev, "duplicate addresses 0x%x, "
1145                                 "use force_subclient\n", data->lm75[0]->addr);
1146                         err = -ENODEV;
1147                         goto ERROR_SC_1;
1148                 }
1149                 err = w83792d_create_subclient(adapter, new_client,
1150                                                 (val >> 4) & 0x7, &data->lm75[1]);
1151                 if (err < 0)
1152                         goto ERROR_SC_1;
1153         }
1154
1155         return 0;
1156
1157 /* Undo inits in case of errors */
1158
1159 ERROR_SC_1:
1160         if (data->lm75[0] != NULL) {
1161                 i2c_detach_client(data->lm75[0]);
1162                 kfree(data->lm75[0]);
1163         }
1164 ERROR_SC_0:
1165         return err;
1166 }
1167
1168
1169 static int
1170 w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1171 {
1172         int i = 0, val1 = 0, val2;
1173         struct i2c_client *new_client;
1174         struct w83792d_data *data;
1175         int err = 0;
1176         const char *client_name = "";
1177
1178         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1179                 goto ERROR0;
1180         }
1181
1182         /* OK. For now, we presume we have a valid client. We now create the
1183            client structure, even though we cannot fill it completely yet.
1184            But it allows us to access w83792d_{read,write}_value. */
1185
1186         if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1187                 err = -ENOMEM;
1188                 goto ERROR0;
1189         }
1190
1191         new_client = &data->client;
1192         i2c_set_clientdata(new_client, data);
1193         new_client->addr = address;
1194         new_client->adapter = adapter;
1195         new_client->driver = &w83792d_driver;
1196         new_client->flags = 0;
1197
1198         /* Now, we do the remaining detection. */
1199
1200         /* The w83792d may be stuck in some other bank than bank 0. This may
1201            make reading other information impossible. Specify a force=... or
1202            force_*=... parameter, and the Winbond will be reset to the right
1203            bank. */
1204         if (kind < 0) {
1205                 if (w83792d_read_value(new_client, W83792D_REG_CONFIG) & 0x80) {
1206                         dev_warn(&new_client->dev, "Detection failed at step "
1207                                 "3\n");
1208                         goto ERROR1;
1209                 }
1210                 val1 = w83792d_read_value(new_client, W83792D_REG_BANK);
1211                 val2 = w83792d_read_value(new_client, W83792D_REG_CHIPMAN);
1212                 /* Check for Winbond ID if in bank 0 */
1213                 if (!(val1 & 0x07)) {  /* is Bank0 */
1214                         if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1215                              ((val1 & 0x80) && (val2 != 0x5c))) {
1216                                 goto ERROR1;
1217                         }
1218                 }
1219                 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1220                    should match */
1221                 if (w83792d_read_value(new_client,
1222                                         W83792D_REG_I2C_ADDR) != address) {
1223                         dev_warn(&new_client->dev, "Detection failed "
1224                                 "at step 5\n");
1225                         goto ERROR1;
1226                 }
1227         }
1228
1229         /* We have either had a force parameter, or we have already detected the
1230            Winbond. Put it now into bank 0 and Vendor ID High Byte */
1231         w83792d_write_value(new_client,
1232                             W83792D_REG_BANK,
1233                             (w83792d_read_value(new_client,
1234                                 W83792D_REG_BANK) & 0x78) | 0x80);
1235
1236         /* Determine the chip type. */
1237         if (kind <= 0) {
1238                 /* get vendor ID */
1239                 val2 = w83792d_read_value(new_client, W83792D_REG_CHIPMAN);
1240                 if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
1241                         goto ERROR1;
1242                 }
1243                 val1 = w83792d_read_value(new_client, W83792D_REG_WCHIPID);
1244                 if (val1 == 0x7a) {
1245                         kind = w83792d;
1246                 } else {
1247                         if (kind == 0)
1248                                         dev_warn(&new_client->dev,
1249                                         "w83792d: Ignoring 'force' parameter for"
1250                                         " unknown chip at adapter %d, address"
1251                                         " 0x%02x\n", i2c_adapter_id(adapter),
1252                                         address);
1253                         goto ERROR1;
1254                 }
1255         }
1256
1257         if (kind == w83792d) {
1258                 client_name = "w83792d";
1259         } else {
1260                 dev_err(&new_client->dev, "w83792d: Internal error: unknown"
1261                                           " kind (%d)?!?", kind);
1262                 goto ERROR1;
1263         }
1264
1265         /* Fill in the remaining client fields and put into the global list */
1266         strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
1267         data->type = kind;
1268
1269         data->valid = 0;
1270         init_MUTEX(&data->update_lock);
1271
1272         /* Tell the I2C layer a new client has arrived */
1273         if ((err = i2c_attach_client(new_client)))
1274                 goto ERROR1;
1275
1276         if ((err = w83792d_detect_subclients(adapter, address,
1277                         kind, new_client)))
1278                 goto ERROR2;
1279
1280         /* Initialize the chip */
1281         w83792d_init_client(new_client);
1282
1283         /* A few vars need to be filled upon startup */
1284         for (i = 0; i < 7; i++) {
1285                 data->fan_min[i] = w83792d_read_value(new_client,
1286                                         W83792D_REG_FAN_MIN[i]);
1287         }
1288
1289         /* Register sysfs hooks */
1290         data->class_dev = hwmon_device_register(&new_client->dev);
1291         if (IS_ERR(data->class_dev)) {
1292                 err = PTR_ERR(data->class_dev);
1293                 goto ERROR3;
1294         }
1295         device_create_file_in(new_client, 0);
1296         device_create_file_in(new_client, 1);
1297         device_create_file_in(new_client, 2);
1298         device_create_file_in(new_client, 3);
1299         device_create_file_in(new_client, 4);
1300         device_create_file_in(new_client, 5);
1301         device_create_file_in(new_client, 6);
1302         device_create_file_in(new_client, 7);
1303         device_create_file_in(new_client, 8);
1304
1305         device_create_file_fan(new_client, 1);
1306         device_create_file_fan(new_client, 2);
1307         device_create_file_fan(new_client, 3);
1308
1309         /* Read GPIO enable register to check if pins for fan 4,5 are used as
1310            GPIO */
1311         val1 = w83792d_read_value(new_client, W83792D_REG_GPIO_EN);
1312         if (!(val1 & 0x40))
1313                 device_create_file_fan(new_client, 4);
1314         if (!(val1 & 0x20))
1315                 device_create_file_fan(new_client, 5);
1316
1317         val1 = w83792d_read_value(new_client, W83792D_REG_PIN);
1318         if (val1 & 0x40)
1319                 device_create_file_fan(new_client, 6);
1320         if (val1 & 0x04)
1321                 device_create_file_fan(new_client, 7);
1322
1323         device_create_file_temp1(new_client);           /* Temp1 */
1324         device_create_file_temp_add(new_client, 2);     /* Temp2 */
1325         device_create_file_temp_add(new_client, 3);     /* Temp3 */
1326
1327         device_create_file_alarms(new_client);
1328
1329         device_create_file_pwm(new_client, 1);
1330         device_create_file_pwm(new_client, 2);
1331         device_create_file_pwm(new_client, 3);
1332
1333         device_create_file_pwmenable(new_client, 1);
1334         device_create_file_pwmenable(new_client, 2);
1335         device_create_file_pwmenable(new_client, 3);
1336
1337         device_create_file_pwm_mode(new_client, 1);
1338         device_create_file_pwm_mode(new_client, 2);
1339         device_create_file_pwm_mode(new_client, 3);
1340
1341         device_create_file_chassis(new_client);
1342         device_create_file_chassis_clear(new_client);
1343
1344         device_create_file_thermal_cruise(new_client, 1);
1345         device_create_file_thermal_cruise(new_client, 2);
1346         device_create_file_thermal_cruise(new_client, 3);
1347
1348         device_create_file_tolerance(new_client, 1);
1349         device_create_file_tolerance(new_client, 2);
1350         device_create_file_tolerance(new_client, 3);
1351
1352         device_create_file_sf2_point(new_client, 1, 1); /* Fan1 */
1353         device_create_file_sf2_point(new_client, 2, 1); /* Fan1 */
1354         device_create_file_sf2_point(new_client, 3, 1); /* Fan1 */
1355         device_create_file_sf2_point(new_client, 4, 1); /* Fan1 */
1356         device_create_file_sf2_point(new_client, 1, 2); /* Fan2 */
1357         device_create_file_sf2_point(new_client, 2, 2); /* Fan2 */
1358         device_create_file_sf2_point(new_client, 3, 2); /* Fan2 */
1359         device_create_file_sf2_point(new_client, 4, 2); /* Fan2 */
1360         device_create_file_sf2_point(new_client, 1, 3); /* Fan3 */
1361         device_create_file_sf2_point(new_client, 2, 3); /* Fan3 */
1362         device_create_file_sf2_point(new_client, 3, 3); /* Fan3 */
1363         device_create_file_sf2_point(new_client, 4, 3); /* Fan3 */
1364
1365         device_create_file_sf2_level(new_client, 1, 1); /* Fan1 */
1366         device_create_file_sf2_level(new_client, 2, 1); /* Fan1 */
1367         device_create_file_sf2_level(new_client, 3, 1); /* Fan1 */
1368         device_create_file_sf2_level(new_client, 1, 2); /* Fan2 */
1369         device_create_file_sf2_level(new_client, 2, 2); /* Fan2 */
1370         device_create_file_sf2_level(new_client, 3, 2); /* Fan2 */
1371         device_create_file_sf2_level(new_client, 1, 3); /* Fan3 */
1372         device_create_file_sf2_level(new_client, 2, 3); /* Fan3 */
1373         device_create_file_sf2_level(new_client, 3, 3); /* Fan3 */
1374
1375         return 0;
1376
1377 ERROR3:
1378         if (data->lm75[0] != NULL) {
1379                 i2c_detach_client(data->lm75[0]);
1380                 kfree(data->lm75[0]);
1381         }
1382         if (data->lm75[1] != NULL) {
1383                 i2c_detach_client(data->lm75[1]);
1384                 kfree(data->lm75[1]);
1385         }
1386 ERROR2:
1387         i2c_detach_client(new_client);
1388 ERROR1:
1389         kfree(data);
1390 ERROR0:
1391         return err;
1392 }
1393
1394 static int
1395 w83792d_detach_client(struct i2c_client *client)
1396 {
1397         struct w83792d_data *data = i2c_get_clientdata(client);
1398         int err;
1399
1400         /* main client */
1401         if (data)
1402                 hwmon_device_unregister(data->class_dev);
1403
1404         if ((err = i2c_detach_client(client)))
1405                 return err;
1406
1407         /* main client */
1408         if (data)
1409                 kfree(data);
1410         /* subclient */
1411         else
1412                 kfree(client);
1413
1414         return 0;
1415 }
1416
1417 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
1418    but the driver only accesses registers in bank 0, so we don't have
1419    to switch banks and lock access between switches. */
1420 static int w83792d_read_value(struct i2c_client *client, u8 reg)
1421 {
1422         return i2c_smbus_read_byte_data(client, reg);
1423 }
1424
1425 static int w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
1426 {
1427         return i2c_smbus_write_byte_data(client, reg, value);
1428 }
1429
1430 static void
1431 w83792d_init_client(struct i2c_client *client)
1432 {
1433         u8 temp2_cfg, temp3_cfg, vid_in_b;
1434
1435         if (init) {
1436                 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1437         }
1438         /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1439            W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1440              vin0/vin1 can be modified by user;
1441            W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1442              vin0/vin1 auto-updated, can NOT be modified by user. */
1443         vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1444         w83792d_write_value(client, W83792D_REG_VID_IN_B,
1445                             vid_in_b & 0xbf);
1446
1447         temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1448         temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1449         w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1450                                 temp2_cfg & 0xe6);
1451         w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1452                                 temp3_cfg & 0xe6);
1453
1454         /* Start monitoring */
1455         w83792d_write_value(client, W83792D_REG_CONFIG,
1456                             (w83792d_read_value(client,
1457                                                 W83792D_REG_CONFIG) & 0xf7)
1458                             | 0x01);
1459 }
1460
1461 static struct w83792d_data *w83792d_update_device(struct device *dev)
1462 {
1463         struct i2c_client *client = to_i2c_client(dev);
1464         struct w83792d_data *data = i2c_get_clientdata(client);
1465         int i, j;
1466         u8 reg_array_tmp[4], pwm_array_tmp[7], reg_tmp;
1467
1468         down(&data->update_lock);
1469
1470         if (time_after
1471             (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1472             || time_before(jiffies, data->last_updated) || !data->valid) {
1473                 dev_dbg(dev, "Starting device update\n");
1474
1475                 /* Update the voltages measured value and limits */
1476                 for (i = 0; i < 9; i++) {
1477                         data->in[i] = w83792d_read_value(client,
1478                                                 W83792D_REG_IN[i]);
1479                         data->in_max[i] = w83792d_read_value(client,
1480                                                 W83792D_REG_IN_MAX[i]);
1481                         data->in_min[i] = w83792d_read_value(client,
1482                                                 W83792D_REG_IN_MIN[i]);
1483                 }
1484                 data->low_bits[0] = w83792d_read_value(client,
1485                                                 W83792D_REG_LOW_BITS1);
1486                 data->low_bits[1] = w83792d_read_value(client,
1487                                                 W83792D_REG_LOW_BITS2);
1488                 for (i = 0; i < 7; i++) {
1489                         /* Update the Fan measured value and limits */
1490                         data->fan[i] = w83792d_read_value(client,
1491                                                 W83792D_REG_FAN[i]);
1492                         data->fan_min[i] = w83792d_read_value(client,
1493                                                 W83792D_REG_FAN_MIN[i]);
1494                         /* Update the PWM/DC Value and PWM/DC flag */
1495                         pwm_array_tmp[i] = w83792d_read_value(client,
1496                                                 W83792D_REG_PWM[i]);
1497                         data->pwm[i] = pwm_array_tmp[i] & 0x0f;
1498                         data->pwm_mode[i] = pwm_array_tmp[i] >> 7;
1499                 }
1500
1501                 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1502                 data->pwmenable[0] = reg_tmp & 0x03;
1503                 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1504                 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1505
1506                 for (i = 0; i < 3; i++) {
1507                         data->temp1[i] = w83792d_read_value(client,
1508                                                         W83792D_REG_TEMP1[i]);
1509                 }
1510                 for (i = 0; i < 2; i++) {
1511                         for (j = 0; j < 6; j++) {
1512                                 data->temp_add[i][j] = w83792d_read_value(
1513                                         client,W83792D_REG_TEMP_ADD[i][j]);
1514                         }
1515                 }
1516
1517                 /* Update the Fan Divisor */
1518                 for (i = 0; i < 4; i++) {
1519                         reg_array_tmp[i] = w83792d_read_value(client,
1520                                                         W83792D_REG_FAN_DIV[i]);
1521                 }
1522                 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1523                 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1524                 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1525                 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1526                 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1527                 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1528                 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1529
1530                 /* Update the realtime status */
1531                 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1532                         (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1533                         (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1534
1535                 /* Update CaseOpen status and it's CLR_CHS. */
1536                 data->chassis = (w83792d_read_value(client,
1537                         W83792D_REG_CHASSIS) >> 5) & 0x01;
1538                 data->chassis_clear = (w83792d_read_value(client,
1539                         W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1540
1541                 /* Update Thermal Cruise/Smart Fan I target value */
1542                 for (i = 0; i < 3; i++) {
1543                         data->thermal_cruise[i] =
1544                                 w83792d_read_value(client,
1545                                 W83792D_REG_THERMAL[i]) & 0x7f;
1546                 }
1547
1548                 /* Update Smart Fan I/II tolerance */
1549                 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1550                 data->tolerance[0] = reg_tmp & 0x0f;
1551                 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1552                 data->tolerance[2] = w83792d_read_value(client,
1553                                         W83792D_REG_TOLERANCE[2]) & 0x0f;
1554
1555                 /* Update Smart Fan II temperature points */
1556                 for (i = 0; i < 3; i++) {
1557                         for (j = 0; j < 4; j++) {
1558                                 data->sf2_points[i][j] = w83792d_read_value(
1559                                         client,W83792D_REG_POINTS[i][j]) & 0x7f;
1560                         }
1561                 }
1562
1563                 /* Update Smart Fan II duty cycle levels */
1564                 for (i = 0; i < 3; i++) {
1565                         reg_tmp = w83792d_read_value(client,
1566                                                 W83792D_REG_LEVELS[i][0]);
1567                         data->sf2_levels[i][0] = reg_tmp & 0x0f;
1568                         data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1569                         reg_tmp = w83792d_read_value(client,
1570                                                 W83792D_REG_LEVELS[i][2]);
1571                         data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1572                         data->sf2_levels[i][3] = reg_tmp & 0x0f;
1573                 }
1574
1575                 data->last_updated = jiffies;
1576                 data->valid = 1;
1577         }
1578
1579         up(&data->update_lock);
1580
1581 #ifdef DEBUG
1582         w83792d_print_debug(data, dev);
1583 #endif
1584
1585         return data;
1586 }
1587
1588 #ifdef DEBUG
1589 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1590 {
1591         int i=0, j=0;
1592         dev_dbg(dev, "==========The following is the debug message...========\n");
1593         dev_dbg(dev, "9 set of Voltages: =====>\n");
1594         for (i=0; i<9; i++) {
1595                 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1596                 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1597                 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1598         }
1599         dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits[0]);
1600         dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits[1]);
1601         dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1602         for (i=0; i<7; i++) {
1603                 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1604                 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1605                 dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1606                 dev_dbg(dev, "pwm_mode[%d] is: 0x%x\n", i, data->pwm_mode[i]);
1607         }
1608         dev_dbg(dev, "3 set of Temperatures: =====>\n");
1609         for (i=0; i<3; i++) {
1610                 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1611         }
1612
1613         for (i=0; i<2; i++) {
1614                 for (j=0; j<6; j++) {
1615                         dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1616                                                         data->temp_add[i][j]);
1617                 }
1618         }
1619
1620         for (i=0; i<7; i++) {
1621                 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1622         }
1623         dev_dbg(dev, "==========End of the debug message...==================\n");
1624         dev_dbg(dev, "\n");
1625 }
1626 #endif
1627
1628 static int __init
1629 sensors_w83792d_init(void)
1630 {
1631         return i2c_add_driver(&w83792d_driver);
1632 }
1633
1634 static void __exit
1635 sensors_w83792d_exit(void)
1636 {
1637         i2c_del_driver(&w83792d_driver);
1638 }
1639
1640 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1641 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1642 MODULE_LICENSE("GPL");
1643
1644 module_init(sensors_w83792d_init);
1645 module_exit(sensors_w83792d_exit);
1646