git.oblomov.eu Git - linux-2.6/blob - 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@assembler.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/module.h>
  39 #include <linux/init.h>
  40 #include <linux/slab.h>
  41 #include <linux/i2c.h>
  42 #include <linux/hwmon.h>
  43 #include <linux/hwmon-sysfs.h>
  44 #include <linux/err.h>
  45 #include <linux/mutex.h>
  46 #include <linux/sysfs.h>
  47
  48 /* Addresses to scan */
  49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
  50                                                 I2C_CLIENT_END };
  51
  52 /* Insmod parameters */
  53 I2C_CLIENT_INSMOD_1(w83792d);
  54 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
  55                         "{bus, clientaddr, subclientaddr1, subclientaddr2}");
  56
  57 static int init;
  58 module_param(init, bool, 0);
  59 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
  60
  61 /* The W83792D registers */
  62 static const u8 W83792D_REG_IN[9] = {
  63         0x20,   /* Vcore A in DataSheet */
  64         0x21,   /* Vcore B in DataSheet */
  65         0x22,   /* VIN0 in DataSheet */
  66         0x23,   /* VIN1 in DataSheet */
  67         0x24,   /* VIN2 in DataSheet */
  68         0x25,   /* VIN3 in DataSheet */
  69         0x26,   /* 5VCC in DataSheet */
  70         0xB0,   /* 5VSB in DataSheet */
  71         0xB1    /* VBAT in DataSheet */
  72 };
  73 #define W83792D_REG_LOW_BITS1 0x3E  /* Low Bits I in DataSheet */
  74 #define W83792D_REG_LOW_BITS2 0x3F  /* Low Bits II in DataSheet */
  75 static const u8 W83792D_REG_IN_MAX[9] = {
  76         0x2B,   /* Vcore A High Limit in DataSheet */
  77         0x2D,   /* Vcore B High Limit in DataSheet */
  78         0x2F,   /* VIN0 High Limit in DataSheet */
  79         0x31,   /* VIN1 High Limit in DataSheet */
  80         0x33,   /* VIN2 High Limit in DataSheet */
  81         0x35,   /* VIN3 High Limit in DataSheet */
  82         0x37,   /* 5VCC High Limit in DataSheet */
  83         0xB4,   /* 5VSB High Limit in DataSheet */
  84         0xB6    /* VBAT High Limit in DataSheet */
  85 };
  86 static const u8 W83792D_REG_IN_MIN[9] = {
  87         0x2C,   /* Vcore A Low Limit in DataSheet */
  88         0x2E,   /* Vcore B Low Limit in DataSheet */
  89         0x30,   /* VIN0 Low Limit in DataSheet */
  90         0x32,   /* VIN1 Low Limit in DataSheet */
  91         0x34,   /* VIN2 Low Limit in DataSheet */
  92         0x36,   /* VIN3 Low Limit in DataSheet */
  93         0x38,   /* 5VCC Low Limit in DataSheet */
  94         0xB5,   /* 5VSB Low Limit in DataSheet */
  95         0xB7    /* VBAT Low Limit in DataSheet */
  96 };
  97 static const u8 W83792D_REG_FAN[7] = {
  98         0x28,   /* FAN 1 Count in DataSheet */
  99         0x29,   /* FAN 2 Count in DataSheet */
 100         0x2A,   /* FAN 3 Count in DataSheet */
 101         0xB8,   /* FAN 4 Count in DataSheet */
 102         0xB9,   /* FAN 5 Count in DataSheet */
 103         0xBA,   /* FAN 6 Count in DataSheet */
 104         0xBE    /* FAN 7 Count in DataSheet */
 105 };
 106 static const u8 W83792D_REG_FAN_MIN[7] = {
 107         0x3B,   /* FAN 1 Count Low Limit in DataSheet */
 108         0x3C,   /* FAN 2 Count Low Limit in DataSheet */
 109         0x3D,   /* FAN 3 Count Low Limit in DataSheet */
 110         0xBB,   /* FAN 4 Count Low Limit in DataSheet */
 111         0xBC,   /* FAN 5 Count Low Limit in DataSheet */
 112         0xBD,   /* FAN 6 Count Low Limit in DataSheet */
 113         0xBF    /* FAN 7 Count Low Limit in DataSheet */
 114 };
 115 #define W83792D_REG_FAN_CFG 0x84        /* FAN Configuration in DataSheet */
 116 static const u8 W83792D_REG_FAN_DIV[4] = {
 117         0x47,   /* contains FAN2 and FAN1 Divisor */
 118         0x5B,   /* contains FAN4 and FAN3 Divisor */
 119         0x5C,   /* contains FAN6 and FAN5 Divisor */
 120         0x9E    /* contains FAN7 Divisor. */
 121 };
 122 static const u8 W83792D_REG_PWM[7] = {
 123         0x81,   /* FAN 1 Duty Cycle, be used to control */
 124         0x83,   /* FAN 2 Duty Cycle, be used to control */
 125         0x94,   /* FAN 3 Duty Cycle, be used to control */
 126         0xA3,   /* FAN 4 Duty Cycle, be used to control */
 127         0xA4,   /* FAN 5 Duty Cycle, be used to control */
 128         0xA5,   /* FAN 6 Duty Cycle, be used to control */
 129         0xA6    /* FAN 7 Duty Cycle, be used to control */
 130 };
 131 #define W83792D_REG_BANK                0x4E
 132 #define W83792D_REG_TEMP2_CONFIG        0xC2
 133 #define W83792D_REG_TEMP3_CONFIG        0xCA
 134
 135 static const u8 W83792D_REG_TEMP1[3] = {
 136         0x27,   /* TEMP 1 in DataSheet */
 137         0x39,   /* TEMP 1 Over in DataSheet */
 138         0x3A,   /* TEMP 1 Hyst in DataSheet */
 139 };
 140
 141 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
 142         { 0xC0,         /* TEMP 2 in DataSheet */
 143           0xC1,         /* TEMP 2(0.5 deg) in DataSheet */
 144           0xC5,         /* TEMP 2 Over High part in DataSheet */
 145           0xC6,         /* TEMP 2 Over Low part in DataSheet */
 146           0xC3,         /* TEMP 2 Thyst High part in DataSheet */
 147           0xC4 },       /* TEMP 2 Thyst Low part in DataSheet */
 148         { 0xC8,         /* TEMP 3 in DataSheet */
 149           0xC9,         /* TEMP 3(0.5 deg) in DataSheet */
 150           0xCD,         /* TEMP 3 Over High part in DataSheet */
 151           0xCE,         /* TEMP 3 Over Low part in DataSheet */
 152           0xCB,         /* TEMP 3 Thyst High part in DataSheet */
 153           0xCC }        /* TEMP 3 Thyst Low part in DataSheet */
 154 };
 155
 156 static const u8 W83792D_REG_THERMAL[3] = {
 157         0x85,   /* SmartFanI: Fan1 target value */
 158         0x86,   /* SmartFanI: Fan2 target value */
 159         0x96    /* SmartFanI: Fan3 target value */
 160 };
 161
 162 static const u8 W83792D_REG_TOLERANCE[3] = {
 163         0x87,   /* (bit3-0)SmartFan Fan1 tolerance */
 164         0x87,   /* (bit7-4)SmartFan Fan2 tolerance */
 165         0x97    /* (bit3-0)SmartFan Fan3 tolerance */
 166 };
 167
 168 static const u8 W83792D_REG_POINTS[3][4] = {
 169         { 0x85,         /* SmartFanII: Fan1 temp point 1 */
 170           0xE3,         /* SmartFanII: Fan1 temp point 2 */
 171           0xE4,         /* SmartFanII: Fan1 temp point 3 */
 172           0xE5 },       /* SmartFanII: Fan1 temp point 4 */
 173         { 0x86,         /* SmartFanII: Fan2 temp point 1 */
 174           0xE6,         /* SmartFanII: Fan2 temp point 2 */
 175           0xE7,         /* SmartFanII: Fan2 temp point 3 */
 176           0xE8 },       /* SmartFanII: Fan2 temp point 4 */
 177         { 0x96,         /* SmartFanII: Fan3 temp point 1 */
 178           0xE9,         /* SmartFanII: Fan3 temp point 2 */
 179           0xEA,         /* SmartFanII: Fan3 temp point 3 */
 180           0xEB }        /* SmartFanII: Fan3 temp point 4 */
 181 };
 182
 183 static const u8 W83792D_REG_LEVELS[3][4] = {
 184         { 0x88,         /* (bit3-0) SmartFanII: Fan1 Non-Stop */
 185           0x88,         /* (bit7-4) SmartFanII: Fan1 Level 1 */
 186           0xE0,         /* (bit7-4) SmartFanII: Fan1 Level 2 */
 187           0xE0 },       /* (bit3-0) SmartFanII: Fan1 Level 3 */
 188         { 0x89,         /* (bit3-0) SmartFanII: Fan2 Non-Stop */
 189           0x89,         /* (bit7-4) SmartFanII: Fan2 Level 1 */
 190           0xE1,         /* (bit7-4) SmartFanII: Fan2 Level 2 */
 191           0xE1 },       /* (bit3-0) SmartFanII: Fan2 Level 3 */
 192         { 0x98,         /* (bit3-0) SmartFanII: Fan3 Non-Stop */
 193           0x98,         /* (bit7-4) SmartFanII: Fan3 Level 1 */
 194           0xE2,         /* (bit7-4) SmartFanII: Fan3 Level 2 */
 195           0xE2 }        /* (bit3-0) SmartFanII: Fan3 Level 3 */
 196 };
 197
 198 #define W83792D_REG_GPIO_EN             0x1A
 199 #define W83792D_REG_CONFIG              0x40
 200 #define W83792D_REG_VID_FANDIV          0x47
 201 #define W83792D_REG_CHIPID              0x49
 202 #define W83792D_REG_WCHIPID             0x58
 203 #define W83792D_REG_CHIPMAN             0x4F
 204 #define W83792D_REG_PIN                 0x4B
 205 #define W83792D_REG_I2C_SUBADDR         0x4A
 206
 207 #define W83792D_REG_ALARM1 0xA9         /* realtime status register1 */
 208 #define W83792D_REG_ALARM2 0xAA         /* realtime status register2 */
 209 #define W83792D_REG_ALARM3 0xAB         /* realtime status register3 */
 210 #define W83792D_REG_CHASSIS 0x42        /* Bit 5: Case Open status bit */
 211 #define W83792D_REG_CHASSIS_CLR 0x44    /* Bit 7: Case Open CLR_CHS/Reset bit */
 212
 213 /* control in0/in1 's limit modifiability */
 214 #define W83792D_REG_VID_IN_B            0x17
 215
 216 #define W83792D_REG_VBAT                0x5D
 217 #define W83792D_REG_I2C_ADDR            0x48
 218
 219 /* Conversions. Rounding and limit checking is only done on the TO_REG
 220    variants. Note that you should be a bit careful with which arguments
 221    these macros are called: arguments may be evaluated more than once.
 222    Fixing this is just not worth it. */
 223 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
 224                                 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
 225 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
 226                                 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
 227
 228 static inline u8
 229 FAN_TO_REG(long rpm, int div)
 230 {
 231         if (rpm == 0)
 232                 return 255;
 233         rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 234         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 235 }
 236
 237 #define FAN_FROM_REG(val,div)   ((val) == 0   ? -1 : \
 238                                 ((val) == 255 ? 0 : \
 239                                                 1350000 / ((val) * (div))))
 240
 241 /* for temp1 */
 242 #define TEMP1_TO_REG(val)       (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 243                                         : (val)) / 1000, 0, 0xff))
 244 #define TEMP1_FROM_REG(val)     (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
 245 /* for temp2 and temp3, because they need addtional resolution */
 246 #define TEMP_ADD_FROM_REG(val1, val2) \
 247         ((((val1) & 0x80 ? (val1)-0x100 \
 248                 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
 249 #define TEMP_ADD_TO_REG_HIGH(val) \
 250         (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 251                         : (val)) / 1000, 0, 0xff))
 252 #define TEMP_ADD_TO_REG_LOW(val)        ((val%1000) ? 0x80 : 0x00)
 253
 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 device *hwmon_dev;
 272         enum chips type;
 273
 274         struct mutex 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         u16 low_bits;           /* Additional resolution to voltage in6-0 */
 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         u32 alarms;             /* realtime status register encoding,combined */
 294         u8 chassis;             /* Chassis status */
 295         u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
 296         u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
 297         u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
 298         u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
 299         u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
 300 };
 301
 302 static int w83792d_attach_adapter(struct i2c_adapter *adapter);
 303 static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
 304 static int w83792d_detach_client(struct i2c_client *client);
 305 static struct w83792d_data *w83792d_update_device(struct device *dev);
 306
 307 #ifdef DEBUG
 308 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
 309 #endif
 310
 311 static void w83792d_init_client(struct i2c_client *client);
 312
 313 static struct i2c_driver w83792d_driver = {
 314         .driver = {
 315                 .name = "w83792d",
 316         },
 317         .attach_adapter = w83792d_attach_adapter,
 318         .detach_client = w83792d_detach_client,
 319 };
 320
 321 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
 322 {
 323         /* in7 and in8 do not have low bits, but the formula still works */
 324         return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
 325 }
 326
 327 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
 328    but the driver only accesses registers in bank 0, so we don't have
 329    to switch banks and lock access between switches. */
 330 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
 331 {
 332         return i2c_smbus_read_byte_data(client, reg);
 333 }
 334
 335 static inline int
 336 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
 337 {
 338         return i2c_smbus_write_byte_data(client, reg, value);
 339 }
 340
 341 /* following are the sysfs callback functions */
 342 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 343                         char *buf)
 344 {
 345         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 346         int nr = sensor_attr->index;
 347         struct w83792d_data *data = w83792d_update_device(dev);
 348         return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
 349 }
 350
 351 #define show_in_reg(reg) \
 352 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 353                         char *buf) \
 354 { \
 355         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 356         int nr = sensor_attr->index; \
 357         struct w83792d_data *data = w83792d_update_device(dev); \
 358         return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
 359 }
 360
 361 show_in_reg(in_min);
 362 show_in_reg(in_max);
 363
 364 #define store_in_reg(REG, reg) \
 365 static ssize_t store_in_##reg (struct device *dev, \
 366                                 struct device_attribute *attr, \
 367                                 const char *buf, size_t count) \
 368 { \
 369         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 370         int nr = sensor_attr->index; \
 371         struct i2c_client *client = to_i2c_client(dev); \
 372         struct w83792d_data *data = i2c_get_clientdata(client); \
 373         u32 val; \
 374          \
 375         val = simple_strtoul(buf, NULL, 10); \
 376         mutex_lock(&data->update_lock); \
 377         data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
 378         w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
 379         mutex_unlock(&data->update_lock); \
 380          \
 381         return count; \
 382 }
 383 store_in_reg(MIN, min);
 384 store_in_reg(MAX, max);
 385
 386 #define show_fan_reg(reg) \
 387 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
 388                         char *buf) \
 389 { \
 390         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 391         int nr = sensor_attr->index - 1; \
 392         struct w83792d_data *data = w83792d_update_device(dev); \
 393         return sprintf(buf,"%d\n", \
 394                 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 395 }
 396
 397 show_fan_reg(fan);
 398 show_fan_reg(fan_min);
 399
 400 static ssize_t
 401 store_fan_min(struct device *dev, struct device_attribute *attr,
 402                 const char *buf, size_t count)
 403 {
 404         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 405         int nr = sensor_attr->index - 1;
 406         struct i2c_client *client = to_i2c_client(dev);
 407         struct w83792d_data *data = i2c_get_clientdata(client);
 408         u32 val;
 409
 410         val = simple_strtoul(buf, NULL, 10);
 411         mutex_lock(&data->update_lock);
 412         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 413         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
 414                                 data->fan_min[nr]);
 415         mutex_unlock(&data->update_lock);
 416
 417         return count;
 418 }
 419
 420 static ssize_t
 421 show_fan_div(struct device *dev, struct device_attribute *attr,
 422                 char *buf)
 423 {
 424         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 425         int nr = sensor_attr->index;
 426         struct w83792d_data *data = w83792d_update_device(dev);
 427         return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
 428 }
 429
 430 /* Note: we save and restore the fan minimum here, because its value is
 431    determined in part by the fan divisor.  This follows the principle of
 432    least surprise; the user doesn't expect the fan minimum to change just
 433    because the divisor changed. */
 434 static ssize_t
 435 store_fan_div(struct device *dev, struct device_attribute *attr,
 436                 const char *buf, size_t count)
 437 {
 438         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 439         int nr = sensor_attr->index - 1;
 440         struct i2c_client *client = to_i2c_client(dev);
 441         struct w83792d_data *data = i2c_get_clientdata(client);
 442         unsigned long min;
 443         /*u8 reg;*/
 444         u8 fan_div_reg = 0;
 445         u8 tmp_fan_div;
 446
 447         /* Save fan_min */
 448         mutex_lock(&data->update_lock);
 449         min = FAN_FROM_REG(data->fan_min[nr],
 450                            DIV_FROM_REG(data->fan_div[nr]));
 451
 452         data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
 453
 454         fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
 455         fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
 456         tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
 457                                         : ((data->fan_div[nr]) & 0x07);
 458         w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
 459                                         fan_div_reg | tmp_fan_div);
 460
 461         /* Restore fan_min */
 462         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 463         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
 464         mutex_unlock(&data->update_lock);
 465
 466         return count;
 467 }
 468
 469 /* read/write the temperature1, includes measured value and limits */
 470
 471 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
 472                                 char *buf)
 473 {
 474         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 475         int nr = sensor_attr->index;
 476         struct w83792d_data *data = w83792d_update_device(dev);
 477         return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
 478 }
 479
 480 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
 481                                 const char *buf, size_t count)
 482 {
 483         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 484         int nr = sensor_attr->index;
 485         struct i2c_client *client = to_i2c_client(dev);
 486         struct w83792d_data *data = i2c_get_clientdata(client);
 487         s32 val;
 488
 489         val = simple_strtol(buf, NULL, 10);
 490         mutex_lock(&data->update_lock);
 491         data->temp1[nr] = TEMP1_TO_REG(val);
 492         w83792d_write_value(client, W83792D_REG_TEMP1[nr],
 493                 data->temp1[nr]);
 494         mutex_unlock(&data->update_lock);
 495
 496         return count;
 497 }
 498
 499 /* read/write the temperature2-3, includes measured value and limits */
 500
 501 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
 502                                 char *buf)
 503 {
 504         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 505         int nr = sensor_attr->nr;
 506         int index = sensor_attr->index;
 507         struct w83792d_data *data = w83792d_update_device(dev);
 508         return sprintf(buf,"%ld\n",
 509                 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
 510                         data->temp_add[nr][index+1]));
 511 }
 512
 513 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
 514                                 const char *buf, size_t count)
 515 {
 516         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 517         int nr = sensor_attr->nr;
 518         int index = sensor_attr->index;
 519         struct i2c_client *client = to_i2c_client(dev);
 520         struct w83792d_data *data = i2c_get_clientdata(client);
 521         s32 val;
 522
 523         val = simple_strtol(buf, NULL, 10);
 524         mutex_lock(&data->update_lock);
 525         data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
 526         data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
 527         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
 528                 data->temp_add[nr][index]);
 529         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
 530                 data->temp_add[nr][index+1]);
 531         mutex_unlock(&data->update_lock);
 532
 533         return count;
 534 }
 535
 536 /* get reatime status of all sensors items: voltage, temp, fan */
 537 static ssize_t
 538 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 539 {
 540         struct w83792d_data *data = w83792d_update_device(dev);
 541         return sprintf(buf, "%d\n", data->alarms);
 542 }
 543
 544 static ssize_t show_alarm(struct device *dev,
 545                           struct device_attribute *attr, char *buf)
 546 {
 547         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 548         int nr = sensor_attr->index;
 549         struct w83792d_data *data = w83792d_update_device(dev);
 550         return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
 551 }
 552
 553 static ssize_t
 554 show_pwm(struct device *dev, struct device_attribute *attr,
 555                 char *buf)
 556 {
 557         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 558         int nr = sensor_attr->index;
 559         struct w83792d_data *data = w83792d_update_device(dev);
 560         return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
 561 }
 562
 563 static ssize_t
 564 show_pwmenable(struct device *dev, struct device_attribute *attr,
 565                         char *buf)
 566 {
 567         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 568         int nr = sensor_attr->index - 1;
 569         struct w83792d_data *data = w83792d_update_device(dev);
 570         long pwm_enable_tmp = 1;
 571
 572         switch (data->pwmenable[nr]) {
 573         case 0:
 574                 pwm_enable_tmp = 1; /* manual mode */
 575                 break;
 576         case 1:
 577                 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
 578                 break;
 579         case 2:
 580                 pwm_enable_tmp = 2; /* Smart Fan II */
 581                 break;
 582         }
 583
 584         return sprintf(buf, "%ld\n", pwm_enable_tmp);
 585 }
 586
 587 static ssize_t
 588 store_pwm(struct device *dev, struct device_attribute *attr,
 589                 const char *buf, size_t count)
 590 {
 591         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 592         int nr = sensor_attr->index;
 593         struct i2c_client *client = to_i2c_client(dev);
 594         struct w83792d_data *data = i2c_get_clientdata(client);
 595         u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
 596
 597         mutex_lock(&data->update_lock);
 598         val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
 599         data->pwm[nr] = val;
 600         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 601         mutex_unlock(&data->update_lock);
 602
 603         return count;
 604 }
 605
 606 static ssize_t
 607 store_pwmenable(struct device *dev, struct device_attribute *attr,
 608                         const char *buf, size_t count)
 609 {
 610         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 611         int nr = sensor_attr->index - 1;
 612         struct i2c_client *client = to_i2c_client(dev);
 613         struct w83792d_data *data = i2c_get_clientdata(client);
 614         u32 val;
 615         u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
 616
 617         val = simple_strtoul(buf, NULL, 10);
 618         if (val < 1 || val > 3)
 619                 return -EINVAL;
 620
 621         mutex_lock(&data->update_lock);
 622         switch (val) {
 623         case 1:
 624                 data->pwmenable[nr] = 0; /* manual mode */
 625                 break;
 626         case 2:
 627                 data->pwmenable[nr] = 2; /* Smart Fan II */
 628                 break;
 629         case 3:
 630                 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
 631                 break;
 632         }
 633         cfg1_tmp = data->pwmenable[0];
 634         cfg2_tmp = (data->pwmenable[1]) << 2;
 635         cfg3_tmp = (data->pwmenable[2]) << 4;
 636         cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
 637         fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
 638         w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
 639         mutex_unlock(&data->update_lock);
 640
 641         return count;
 642 }
 643
 644 static ssize_t
 645 show_pwm_mode(struct device *dev, struct device_attribute *attr,
 646                         char *buf)
 647 {
 648         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 649         int nr = sensor_attr->index;
 650         struct w83792d_data *data = w83792d_update_device(dev);
 651         return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
 652 }
 653
 654 static ssize_t
 655 store_pwm_mode(struct device *dev, struct device_attribute *attr,
 656                         const char *buf, size_t count)
 657 {
 658         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 659         int nr = sensor_attr->index;
 660         struct i2c_client *client = to_i2c_client(dev);
 661         struct w83792d_data *data = i2c_get_clientdata(client);
 662         u32 val;
 663
 664         val = simple_strtoul(buf, NULL, 10);
 665         if (val != 0 && val != 1)
 666                 return -EINVAL;
 667
 668         mutex_lock(&data->update_lock);
 669         data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
 670         if (val) {                      /* PWM mode */
 671                 data->pwm[nr] |= 0x80;
 672         } else {                        /* DC mode */
 673                 data->pwm[nr] &= 0x7f;
 674         }
 675         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 676         mutex_unlock(&data->update_lock);
 677
 678         return count;
 679 }
 680
 681 static ssize_t
 682 show_regs_chassis(struct device *dev, struct device_attribute *attr,
 683                         char *buf)
 684 {
 685         struct w83792d_data *data = w83792d_update_device(dev);
 686         return sprintf(buf, "%d\n", data->chassis);
 687 }
 688
 689 static ssize_t
 690 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
 691 {
 692         struct w83792d_data *data = w83792d_update_device(dev);
 693         return sprintf(buf, "%d\n", data->chassis_clear);
 694 }
 695
 696 static ssize_t
 697 store_chassis_clear(struct device *dev, struct device_attribute *attr,
 698                         const char *buf, size_t count)
 699 {
 700         struct i2c_client *client = to_i2c_client(dev);
 701         struct w83792d_data *data = i2c_get_clientdata(client);
 702         u32 val;
 703         u8 temp1 = 0, temp2 = 0;
 704
 705         val = simple_strtoul(buf, NULL, 10);
 706         mutex_lock(&data->update_lock);
 707         data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
 708         temp1 = ((data->chassis_clear) << 7) & 0x80;
 709         temp2 = w83792d_read_value(client,
 710                 W83792D_REG_CHASSIS_CLR) & 0x7f;
 711         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
 712         mutex_unlock(&data->update_lock);
 713
 714         return count;
 715 }
 716
 717 /* For Smart Fan I / Thermal Cruise */
 718 static ssize_t
 719 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
 720                         char *buf)
 721 {
 722         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 723         int nr = sensor_attr->index;
 724         struct w83792d_data *data = w83792d_update_device(dev);
 725         return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
 726 }
 727
 728 static ssize_t
 729 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
 730                         const char *buf, size_t count)
 731 {
 732         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 733         int nr = sensor_attr->index - 1;
 734         struct i2c_client *client = to_i2c_client(dev);
 735         struct w83792d_data *data = i2c_get_clientdata(client);
 736         u32 val;
 737         u8 target_tmp=0, target_mask=0;
 738
 739         val = simple_strtoul(buf, NULL, 10);
 740         target_tmp = val;
 741         target_tmp = target_tmp & 0x7f;
 742         mutex_lock(&data->update_lock);
 743         target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
 744         data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
 745         w83792d_write_value(client, W83792D_REG_THERMAL[nr],
 746                 (data->thermal_cruise[nr]) | target_mask);
 747         mutex_unlock(&data->update_lock);
 748
 749         return count;
 750 }
 751
 752 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
 753 static ssize_t
 754 show_tolerance(struct device *dev, struct device_attribute *attr,
 755                 char *buf)
 756 {
 757         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 758         int nr = sensor_attr->index;
 759         struct w83792d_data *data = w83792d_update_device(dev);
 760         return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
 761 }
 762
 763 static ssize_t
 764 store_tolerance(struct device *dev, struct device_attribute *attr,
 765                 const char *buf, size_t count)
 766 {
 767         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 768         int nr = sensor_attr->index - 1;
 769         struct i2c_client *client = to_i2c_client(dev);
 770         struct w83792d_data *data = i2c_get_clientdata(client);
 771         u32 val;
 772         u8 tol_tmp, tol_mask;
 773
 774         val = simple_strtoul(buf, NULL, 10);
 775         mutex_lock(&data->update_lock);
 776         tol_mask = w83792d_read_value(client,
 777                 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
 778         tol_tmp = SENSORS_LIMIT(val, 0, 15);
 779         tol_tmp &= 0x0f;
 780         data->tolerance[nr] = tol_tmp;
 781         if (nr == 1) {
 782                 tol_tmp <<= 4;
 783         }
 784         w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
 785                 tol_mask | tol_tmp);
 786         mutex_unlock(&data->update_lock);
 787
 788         return count;
 789 }
 790
 791 /* For Smart Fan II */
 792 static ssize_t
 793 show_sf2_point(struct device *dev, struct device_attribute *attr,
 794                 char *buf)
 795 {
 796         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 797         int nr = sensor_attr->nr;
 798         int index = sensor_attr->index;
 799         struct w83792d_data *data = w83792d_update_device(dev);
 800         return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
 801 }
 802
 803 static ssize_t
 804 store_sf2_point(struct device *dev, struct device_attribute *attr,
 805                 const char *buf, size_t count)
 806 {
 807         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 808         int nr = sensor_attr->nr - 1;
 809         int index = sensor_attr->index - 1;
 810         struct i2c_client *client = to_i2c_client(dev);
 811         struct w83792d_data *data = i2c_get_clientdata(client);
 812         u32 val;
 813         u8 mask_tmp = 0;
 814
 815         val = simple_strtoul(buf, NULL, 10);
 816         mutex_lock(&data->update_lock);
 817         data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
 818         mask_tmp = w83792d_read_value(client,
 819                                         W83792D_REG_POINTS[index][nr]) & 0x80;
 820         w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
 821                 mask_tmp|data->sf2_points[index][nr]);
 822         mutex_unlock(&data->update_lock);
 823
 824         return count;
 825 }
 826
 827 static ssize_t
 828 show_sf2_level(struct device *dev, struct device_attribute *attr,
 829                 char *buf)
 830 {
 831         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 832         int nr = sensor_attr->nr;
 833         int index = sensor_attr->index;
 834         struct w83792d_data *data = w83792d_update_device(dev);
 835         return sprintf(buf, "%d\n",
 836                         (((data->sf2_levels[index-1][nr]) * 100) / 15));
 837 }
 838
 839 static ssize_t
 840 store_sf2_level(struct device *dev, struct device_attribute *attr,
 841                 const char *buf, size_t count)
 842 {
 843         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 844         int nr = sensor_attr->nr;
 845         int index = sensor_attr->index - 1;
 846         struct i2c_client *client = to_i2c_client(dev);
 847         struct w83792d_data *data = i2c_get_clientdata(client);
 848         u32 val;
 849         u8 mask_tmp=0, level_tmp=0;
 850
 851         val = simple_strtoul(buf, NULL, 10);
 852         mutex_lock(&data->update_lock);
 853         data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
 854         mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
 855                 & ((nr==3) ? 0xf0 : 0x0f);
 856         if (nr==3) {
 857                 level_tmp = data->sf2_levels[index][nr];
 858         } else {
 859                 level_tmp = data->sf2_levels[index][nr] << 4;
 860         }
 861         w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
 862         mutex_unlock(&data->update_lock);
 863
 864         return count;
 865 }
 866
 867 /* This function is called when:
 868      * w83792d_driver is inserted (when this module is loaded), for each
 869        available adapter
 870      * when a new adapter is inserted (and w83792d_driver is still present) */
 871 static int
 872 w83792d_attach_adapter(struct i2c_adapter *adapter)
 873 {
 874         if (!(adapter->class & I2C_CLASS_HWMON))
 875                 return 0;
 876         return i2c_probe(adapter, &addr_data, w83792d_detect);
 877 }
 878
 879
 880 static int
 881 w83792d_create_subclient(struct i2c_adapter *adapter,
 882                                 struct i2c_client *new_client, int addr,
 883                                 struct i2c_client **sub_cli)
 884 {
 885         int err;
 886         struct i2c_client *sub_client;
 887
 888         (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 889         if (!(sub_client)) {
 890                 return -ENOMEM;
 891         }
 892         sub_client->addr = 0x48 + addr;
 893         i2c_set_clientdata(sub_client, NULL);
 894         sub_client->adapter = adapter;
 895         sub_client->driver = &w83792d_driver;
 896         sub_client->flags = 0;
 897         strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
 898         if ((err = i2c_attach_client(sub_client))) {
 899                 dev_err(&new_client->dev, "subclient registration "
 900                         "at address 0x%x failed\n", sub_client->addr);
 901                 kfree(sub_client);
 902                 return err;
 903         }
 904         return 0;
 905 }
 906
 907
 908 static int
 909 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
 910                 struct i2c_client *new_client)
 911 {
 912         int i, id, err;
 913         u8 val;
 914         struct w83792d_data *data = i2c_get_clientdata(new_client);
 915
 916         id = i2c_adapter_id(adapter);
 917         if (force_subclients[0] == id && force_subclients[1] == address) {
 918                 for (i = 2; i <= 3; i++) {
 919                         if (force_subclients[i] < 0x48 ||
 920                             force_subclients[i] > 0x4f) {
 921                                 dev_err(&new_client->dev, "invalid subclient "
 922                                         "address %d; must be 0x48-0x4f\n",
 923                                         force_subclients[i]);
 924                                 err = -ENODEV;
 925                                 goto ERROR_SC_0;
 926                         }
 927                 }
 928                 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
 929                                         (force_subclients[2] & 0x07) |
 930                                         ((force_subclients[3] & 0x07) << 4));
 931         }
 932
 933         val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
 934         if (!(val & 0x08)) {
 935                 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
 936                                                 &data->lm75[0]);
 937                 if (err < 0)
 938                         goto ERROR_SC_0;
 939         }
 940         if (!(val & 0x80)) {
 941                 if ((data->lm75[0] != NULL) &&
 942                         ((val & 0x7) == ((val >> 4) & 0x7))) {
 943                         dev_err(&new_client->dev, "duplicate addresses 0x%x, "
 944                                 "use force_subclient\n", data->lm75[0]->addr);
 945                         err = -ENODEV;
 946                         goto ERROR_SC_1;
 947                 }
 948                 err = w83792d_create_subclient(adapter, new_client,
 949                                                 (val >> 4) & 0x7, &data->lm75[1]);
 950                 if (err < 0)
 951                         goto ERROR_SC_1;
 952         }
 953
 954         return 0;
 955
 956 /* Undo inits in case of errors */
 957
 958 ERROR_SC_1:
 959         if (data->lm75[0] != NULL) {
 960                 i2c_detach_client(data->lm75[0]);
 961                 kfree(data->lm75[0]);
 962         }
 963 ERROR_SC_0:
 964         return err;
 965 }
 966
 967 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
 968 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
 969 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
 970 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
 971 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
 972 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
 973 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
 974 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
 975 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
 976 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
 977                         show_in_min, store_in_min, 0);
 978 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
 979                         show_in_min, store_in_min, 1);
 980 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
 981                         show_in_min, store_in_min, 2);
 982 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
 983                         show_in_min, store_in_min, 3);
 984 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
 985                         show_in_min, store_in_min, 4);
 986 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
 987                         show_in_min, store_in_min, 5);
 988 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
 989                         show_in_min, store_in_min, 6);
 990 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
 991                         show_in_min, store_in_min, 7);
 992 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
 993                         show_in_min, store_in_min, 8);
 994 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
 995                         show_in_max, store_in_max, 0);
 996 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
 997                         show_in_max, store_in_max, 1);
 998 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
 999                         show_in_max, store_in_max, 2);
1000 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1001                         show_in_max, store_in_max, 3);
1002 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1003                         show_in_max, store_in_max, 4);
1004 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1005                         show_in_max, store_in_max, 5);
1006 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1007                         show_in_max, store_in_max, 6);
1008 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1009                         show_in_max, store_in_max, 7);
1010 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1011                         show_in_max, store_in_max, 8);
1012 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1013 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1014 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1015 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1016                         show_temp1, store_temp1, 0, 1);
1017 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1018                         store_temp23, 0, 2);
1019 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1020                         store_temp23, 1, 2);
1021 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1022                         show_temp1, store_temp1, 0, 2);
1023 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1024                         show_temp23, store_temp23, 0, 4);
1025 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1026                         show_temp23, store_temp23, 1, 4);
1027 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1028 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1029 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1030 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1031 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1032 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1033 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1034 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1035 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1036 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1037 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1038 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1039 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1040 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1041 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1042 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1043 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1044 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1045 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1046 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1047 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1048 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1049                         show_chassis_clear, store_chassis_clear);
1050 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1051 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1052 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1053 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1054                         show_pwmenable, store_pwmenable, 1);
1055 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1056                         show_pwmenable, store_pwmenable, 2);
1057 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1058                         show_pwmenable, store_pwmenable, 3);
1059 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1060                         show_pwm_mode, store_pwm_mode, 0);
1061 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1062                         show_pwm_mode, store_pwm_mode, 1);
1063 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1064                         show_pwm_mode, store_pwm_mode, 2);
1065 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1066                         show_tolerance, store_tolerance, 1);
1067 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1068                         show_tolerance, store_tolerance, 2);
1069 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1070                         show_tolerance, store_tolerance, 3);
1071 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1072                         show_thermal_cruise, store_thermal_cruise, 1);
1073 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1074                         show_thermal_cruise, store_thermal_cruise, 2);
1075 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1076                         show_thermal_cruise, store_thermal_cruise, 3);
1077 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1078                         show_sf2_point, store_sf2_point, 1, 1);
1079 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1080                         show_sf2_point, store_sf2_point, 2, 1);
1081 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1082                         show_sf2_point, store_sf2_point, 3, 1);
1083 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1084                         show_sf2_point, store_sf2_point, 4, 1);
1085 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1086                         show_sf2_point, store_sf2_point, 1, 2);
1087 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1088                         show_sf2_point, store_sf2_point, 2, 2);
1089 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1090                         show_sf2_point, store_sf2_point, 3, 2);
1091 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1092                         show_sf2_point, store_sf2_point, 4, 2);
1093 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1094                         show_sf2_point, store_sf2_point, 1, 3);
1095 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1096                         show_sf2_point, store_sf2_point, 2, 3);
1097 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1098                         show_sf2_point, store_sf2_point, 3, 3);
1099 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1100                         show_sf2_point, store_sf2_point, 4, 3);
1101 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1102                         show_sf2_level, store_sf2_level, 1, 1);
1103 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1104                         show_sf2_level, store_sf2_level, 2, 1);
1105 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1106                         show_sf2_level, store_sf2_level, 3, 1);
1107 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1108                         show_sf2_level, store_sf2_level, 1, 2);
1109 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1110                         show_sf2_level, store_sf2_level, 2, 2);
1111 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1112                         show_sf2_level, store_sf2_level, 3, 2);
1113 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1114                         show_sf2_level, store_sf2_level, 1, 3);
1115 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1116                         show_sf2_level, store_sf2_level, 2, 3);
1117 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1118                         show_sf2_level, store_sf2_level, 3, 3);
1119 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1120 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1121 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1122 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1123 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1124 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1125 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1126 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1127                         show_fan_min, store_fan_min, 1);
1128 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1129                         show_fan_min, store_fan_min, 2);
1130 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1131                         show_fan_min, store_fan_min, 3);
1132 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1133                         show_fan_min, store_fan_min, 4);
1134 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1135                         show_fan_min, store_fan_min, 5);
1136 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1137                         show_fan_min, store_fan_min, 6);
1138 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1139                         show_fan_min, store_fan_min, 7);
1140 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1141                         show_fan_div, store_fan_div, 1);
1142 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1143                         show_fan_div, store_fan_div, 2);
1144 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1145                         show_fan_div, store_fan_div, 3);
1146 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1147                         show_fan_div, store_fan_div, 4);
1148 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1149                         show_fan_div, store_fan_div, 5);
1150 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1151                         show_fan_div, store_fan_div, 6);
1152 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1153                         show_fan_div, store_fan_div, 7);
1154
1155 static struct attribute *w83792d_attributes_fan[4][5] = {
1156         {
1157                 &sensor_dev_attr_fan4_input.dev_attr.attr,
1158                 &sensor_dev_attr_fan4_min.dev_attr.attr,
1159                 &sensor_dev_attr_fan4_div.dev_attr.attr,
1160                 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1161                 NULL
1162         }, {
1163                 &sensor_dev_attr_fan5_input.dev_attr.attr,
1164                 &sensor_dev_attr_fan5_min.dev_attr.attr,
1165                 &sensor_dev_attr_fan5_div.dev_attr.attr,
1166                 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1167                 NULL
1168         }, {
1169                 &sensor_dev_attr_fan6_input.dev_attr.attr,
1170                 &sensor_dev_attr_fan6_min.dev_attr.attr,
1171                 &sensor_dev_attr_fan6_div.dev_attr.attr,
1172                 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1173                 NULL
1174         }, {
1175                 &sensor_dev_attr_fan7_input.dev_attr.attr,
1176                 &sensor_dev_attr_fan7_min.dev_attr.attr,
1177                 &sensor_dev_attr_fan7_div.dev_attr.attr,
1178                 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1179                 NULL
1180         }
1181 };
1182
1183 static const struct attribute_group w83792d_group_fan[4] = {
1184         { .attrs = w83792d_attributes_fan[0] },
1185         { .attrs = w83792d_attributes_fan[1] },
1186         { .attrs = w83792d_attributes_fan[2] },
1187         { .attrs = w83792d_attributes_fan[3] },
1188 };
1189
1190 static struct attribute *w83792d_attributes[] = {
1191         &sensor_dev_attr_in0_input.dev_attr.attr,
1192         &sensor_dev_attr_in0_max.dev_attr.attr,
1193         &sensor_dev_attr_in0_min.dev_attr.attr,
1194         &sensor_dev_attr_in1_input.dev_attr.attr,
1195         &sensor_dev_attr_in1_max.dev_attr.attr,
1196         &sensor_dev_attr_in1_min.dev_attr.attr,
1197         &sensor_dev_attr_in2_input.dev_attr.attr,
1198         &sensor_dev_attr_in2_max.dev_attr.attr,
1199         &sensor_dev_attr_in2_min.dev_attr.attr,
1200         &sensor_dev_attr_in3_input.dev_attr.attr,
1201         &sensor_dev_attr_in3_max.dev_attr.attr,
1202         &sensor_dev_attr_in3_min.dev_attr.attr,
1203         &sensor_dev_attr_in4_input.dev_attr.attr,
1204         &sensor_dev_attr_in4_max.dev_attr.attr,
1205         &sensor_dev_attr_in4_min.dev_attr.attr,
1206         &sensor_dev_attr_in5_input.dev_attr.attr,
1207         &sensor_dev_attr_in5_max.dev_attr.attr,
1208         &sensor_dev_attr_in5_min.dev_attr.attr,
1209         &sensor_dev_attr_in6_input.dev_attr.attr,
1210         &sensor_dev_attr_in6_max.dev_attr.attr,
1211         &sensor_dev_attr_in6_min.dev_attr.attr,
1212         &sensor_dev_attr_in7_input.dev_attr.attr,
1213         &sensor_dev_attr_in7_max.dev_attr.attr,
1214         &sensor_dev_attr_in7_min.dev_attr.attr,
1215         &sensor_dev_attr_in8_input.dev_attr.attr,
1216         &sensor_dev_attr_in8_max.dev_attr.attr,
1217         &sensor_dev_attr_in8_min.dev_attr.attr,
1218         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1219         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1220         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1221         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1222         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1223         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1224         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1225         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1226         &sensor_dev_attr_in8_alarm.dev_attr.attr,
1227         &sensor_dev_attr_temp1_input.dev_attr.attr,
1228         &sensor_dev_attr_temp1_max.dev_attr.attr,
1229         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1230         &sensor_dev_attr_temp2_input.dev_attr.attr,
1231         &sensor_dev_attr_temp2_max.dev_attr.attr,
1232         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1233         &sensor_dev_attr_temp3_input.dev_attr.attr,
1234         &sensor_dev_attr_temp3_max.dev_attr.attr,
1235         &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1236         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1237         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1238         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1239         &sensor_dev_attr_pwm1.dev_attr.attr,
1240         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1241         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1242         &sensor_dev_attr_pwm2.dev_attr.attr,
1243         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1244         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1245         &sensor_dev_attr_pwm3.dev_attr.attr,
1246         &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1247         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1248         &dev_attr_alarms.attr,
1249         &dev_attr_chassis.attr,
1250         &dev_attr_chassis_clear.attr,
1251         &sensor_dev_attr_tolerance1.dev_attr.attr,
1252         &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1253         &sensor_dev_attr_tolerance2.dev_attr.attr,
1254         &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1255         &sensor_dev_attr_tolerance3.dev_attr.attr,
1256         &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1257         &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1258         &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1259         &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1260         &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1261         &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1262         &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1263         &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1264         &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1265         &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1266         &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1267         &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1268         &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1269         &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1270         &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1271         &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1272         &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1273         &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1274         &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1275         &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1276         &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1277         &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1278         &sensor_dev_attr_fan1_input.dev_attr.attr,
1279         &sensor_dev_attr_fan1_min.dev_attr.attr,
1280         &sensor_dev_attr_fan1_div.dev_attr.attr,
1281         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1282         &sensor_dev_attr_fan2_input.dev_attr.attr,
1283         &sensor_dev_attr_fan2_min.dev_attr.attr,
1284         &sensor_dev_attr_fan2_div.dev_attr.attr,
1285         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1286         &sensor_dev_attr_fan3_input.dev_attr.attr,
1287         &sensor_dev_attr_fan3_min.dev_attr.attr,
1288         &sensor_dev_attr_fan3_div.dev_attr.attr,
1289         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1290         NULL
1291 };
1292
1293 static const struct attribute_group w83792d_group = {
1294         .attrs = w83792d_attributes,
1295 };
1296
1297 static int
1298 w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1299 {
1300         int i = 0, val1 = 0, val2;
1301         struct i2c_client *client;
1302         struct device *dev;
1303         struct w83792d_data *data;
1304         int err = 0;
1305         const char *client_name = "";
1306
1307         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1308                 goto ERROR0;
1309         }
1310
1311         /* OK. For now, we presume we have a valid client. We now create the
1312            client structure, even though we cannot fill it completely yet.
1313            But it allows us to access w83792d_{read,write}_value. */
1314
1315         if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1316                 err = -ENOMEM;
1317                 goto ERROR0;
1318         }
1319
1320         client = &data->client;
1321         dev = &client->dev;
1322         i2c_set_clientdata(client, data);
1323         client->addr = address;
1324         client->adapter = adapter;
1325         client->driver = &w83792d_driver;
1326         client->flags = 0;
1327
1328         /* Now, we do the remaining detection. */
1329
1330         /* The w83792d may be stuck in some other bank than bank 0. This may
1331            make reading other information impossible. Specify a force=... or
1332            force_*=... parameter, and the Winbond will be reset to the right
1333            bank. */
1334         if (kind < 0) {
1335                 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1336                         dev_dbg(dev, "Detection failed at step 1\n");
1337                         goto ERROR1;
1338                 }
1339                 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1340                 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1341                 /* Check for Winbond ID if in bank 0 */
1342                 if (!(val1 & 0x07)) {  /* is Bank0 */
1343                         if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1344                              ((val1 & 0x80) && (val2 != 0x5c))) {
1345                                 dev_dbg(dev, "Detection failed at step 2\n");
1346                                 goto ERROR1;
1347                         }
1348                 }
1349                 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1350                    should match */
1351                 if (w83792d_read_value(client,
1352                                         W83792D_REG_I2C_ADDR) != address) {
1353                         dev_dbg(dev, "Detection failed at step 3\n");
1354                         goto ERROR1;
1355                 }
1356         }
1357
1358         /* We have either had a force parameter, or we have already detected the
1359            Winbond. Put it now into bank 0 and Vendor ID High Byte */
1360         w83792d_write_value(client,
1361                             W83792D_REG_BANK,
1362                             (w83792d_read_value(client,
1363                                 W83792D_REG_BANK) & 0x78) | 0x80);
1364
1365         /* Determine the chip type. */
1366         if (kind <= 0) {
1367                 /* get vendor ID */
1368                 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1369                 if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
1370                         goto ERROR1;
1371                 }
1372                 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1373                 if (val1 == 0x7a) {
1374                         kind = w83792d;
1375                 } else {
1376                         if (kind == 0)
1377                                         dev_warn(dev,
1378                                         "w83792d: Ignoring 'force' parameter for"
1379                                         " unknown chip at adapter %d, address"
1380                                         " 0x%02x\n", i2c_adapter_id(adapter),
1381                                         address);
1382                         goto ERROR1;
1383                 }
1384         }
1385
1386         if (kind == w83792d) {
1387                 client_name = "w83792d";
1388         } else {
1389                 dev_err(dev, "w83792d: Internal error: unknown kind (%d)?!?\n",
1390                         kind);
1391                 goto ERROR1;
1392         }
1393
1394         /* Fill in the remaining client fields and put into the global list */
1395         strlcpy(client->name, client_name, I2C_NAME_SIZE);
1396         data->type = kind;
1397
1398         data->valid = 0;
1399         mutex_init(&data->update_lock);
1400
1401         /* Tell the I2C layer a new client has arrived */
1402         if ((err = i2c_attach_client(client)))
1403                 goto ERROR1;
1404
1405         if ((err = w83792d_detect_subclients(adapter, address,
1406                         kind, client)))
1407                 goto ERROR2;
1408
1409         /* Initialize the chip */
1410         w83792d_init_client(client);
1411
1412         /* A few vars need to be filled upon startup */
1413         for (i = 0; i < 7; i++) {
1414                 data->fan_min[i] = w83792d_read_value(client,
1415                                         W83792D_REG_FAN_MIN[i]);
1416         }
1417
1418         /* Register sysfs hooks */
1419         if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1420                 goto ERROR3;
1421
1422         /* Read GPIO enable register to check if pins for fan 4,5 are used as
1423            GPIO */
1424         val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1425
1426         if (!(val1 & 0x40))
1427                 if ((err = sysfs_create_group(&dev->kobj,
1428                                               &w83792d_group_fan[0])))
1429                         goto exit_remove_files;
1430
1431         if (!(val1 & 0x20))
1432                 if ((err = sysfs_create_group(&dev->kobj,
1433                                               &w83792d_group_fan[1])))
1434                         goto exit_remove_files;
1435
1436         val1 = w83792d_read_value(client, W83792D_REG_PIN);
1437         if (val1 & 0x40)
1438                 if ((err = sysfs_create_group(&dev->kobj,
1439                                               &w83792d_group_fan[2])))
1440                         goto exit_remove_files;
1441
1442         if (val1 & 0x04)
1443                 if ((err = sysfs_create_group(&dev->kobj,
1444                                               &w83792d_group_fan[3])))
1445                         goto exit_remove_files;
1446
1447         data->hwmon_dev = hwmon_device_register(dev);
1448         if (IS_ERR(data->hwmon_dev)) {
1449                 err = PTR_ERR(data->hwmon_dev);
1450                 goto exit_remove_files;
1451         }
1452
1453         return 0;
1454
1455 exit_remove_files:
1456         sysfs_remove_group(&dev->kobj, &w83792d_group);
1457         for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1458                 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1459 ERROR3:
1460         if (data->lm75[0] != NULL) {
1461                 i2c_detach_client(data->lm75[0]);
1462                 kfree(data->lm75[0]);
1463         }
1464         if (data->lm75[1] != NULL) {
1465                 i2c_detach_client(data->lm75[1]);
1466                 kfree(data->lm75[1]);
1467         }
1468 ERROR2:
1469         i2c_detach_client(client);
1470 ERROR1:
1471         kfree(data);
1472 ERROR0:
1473         return err;
1474 }
1475
1476 static int
1477 w83792d_detach_client(struct i2c_client *client)
1478 {
1479         struct w83792d_data *data = i2c_get_clientdata(client);
1480         int err, i;
1481
1482         /* main client */
1483         if (data) {
1484                 hwmon_device_unregister(data->hwmon_dev);
1485                 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1486                 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1487                         sysfs_remove_group(&client->dev.kobj,
1488                                            &w83792d_group_fan[i]);
1489         }
1490
1491         if ((err = i2c_detach_client(client)))
1492                 return err;
1493
1494         /* main client */
1495         if (data)
1496                 kfree(data);
1497         /* subclient */
1498         else
1499                 kfree(client);
1500
1501         return 0;
1502 }
1503
1504 static void
1505 w83792d_init_client(struct i2c_client *client)
1506 {
1507         u8 temp2_cfg, temp3_cfg, vid_in_b;
1508
1509         if (init) {
1510                 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1511         }
1512         /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1513            W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1514              vin0/vin1 can be modified by user;
1515            W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1516              vin0/vin1 auto-updated, can NOT be modified by user. */
1517         vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1518         w83792d_write_value(client, W83792D_REG_VID_IN_B,
1519                             vid_in_b & 0xbf);
1520
1521         temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1522         temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1523         w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1524                                 temp2_cfg & 0xe6);
1525         w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1526                                 temp3_cfg & 0xe6);
1527
1528         /* Start monitoring */
1529         w83792d_write_value(client, W83792D_REG_CONFIG,
1530                             (w83792d_read_value(client,
1531                                                 W83792D_REG_CONFIG) & 0xf7)
1532                             | 0x01);
1533 }
1534
1535 static struct w83792d_data *w83792d_update_device(struct device *dev)
1536 {
1537         struct i2c_client *client = to_i2c_client(dev);
1538         struct w83792d_data *data = i2c_get_clientdata(client);
1539         int i, j;
1540         u8 reg_array_tmp[4], reg_tmp;
1541
1542         mutex_lock(&data->update_lock);
1543
1544         if (time_after
1545             (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1546             || time_before(jiffies, data->last_updated) || !data->valid) {
1547                 dev_dbg(dev, "Starting device update\n");
1548
1549                 /* Update the voltages measured value and limits */
1550                 for (i = 0; i < 9; i++) {
1551                         data->in[i] = w83792d_read_value(client,
1552                                                 W83792D_REG_IN[i]);
1553                         data->in_max[i] = w83792d_read_value(client,
1554                                                 W83792D_REG_IN_MAX[i]);
1555                         data->in_min[i] = w83792d_read_value(client,
1556                                                 W83792D_REG_IN_MIN[i]);
1557                 }
1558                 data->low_bits = w83792d_read_value(client,
1559                                                 W83792D_REG_LOW_BITS1) +
1560                                  (w83792d_read_value(client,
1561                                                 W83792D_REG_LOW_BITS2) << 8);
1562                 for (i = 0; i < 7; i++) {
1563                         /* Update the Fan measured value and limits */
1564                         data->fan[i] = w83792d_read_value(client,
1565                                                 W83792D_REG_FAN[i]);
1566                         data->fan_min[i] = w83792d_read_value(client,
1567                                                 W83792D_REG_FAN_MIN[i]);
1568                         /* Update the PWM/DC Value and PWM/DC flag */
1569                         data->pwm[i] = w83792d_read_value(client,
1570                                                 W83792D_REG_PWM[i]);
1571                 }
1572
1573                 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1574                 data->pwmenable[0] = reg_tmp & 0x03;
1575                 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1576                 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1577
1578                 for (i = 0; i < 3; i++) {
1579                         data->temp1[i] = w83792d_read_value(client,
1580                                                         W83792D_REG_TEMP1[i]);
1581                 }
1582                 for (i = 0; i < 2; i++) {
1583                         for (j = 0; j < 6; j++) {
1584                                 data->temp_add[i][j] = w83792d_read_value(
1585                                         client,W83792D_REG_TEMP_ADD[i][j]);
1586                         }
1587                 }
1588
1589                 /* Update the Fan Divisor */
1590                 for (i = 0; i < 4; i++) {
1591                         reg_array_tmp[i] = w83792d_read_value(client,
1592                                                         W83792D_REG_FAN_DIV[i]);
1593                 }
1594                 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1595                 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1596                 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1597                 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1598                 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1599                 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1600                 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1601
1602                 /* Update the realtime status */
1603                 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1604                         (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1605                         (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1606
1607                 /* Update CaseOpen status and it's CLR_CHS. */
1608                 data->chassis = (w83792d_read_value(client,
1609                         W83792D_REG_CHASSIS) >> 5) & 0x01;
1610                 data->chassis_clear = (w83792d_read_value(client,
1611                         W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1612
1613                 /* Update Thermal Cruise/Smart Fan I target value */
1614                 for (i = 0; i < 3; i++) {
1615                         data->thermal_cruise[i] =
1616                                 w83792d_read_value(client,
1617                                 W83792D_REG_THERMAL[i]) & 0x7f;
1618                 }
1619
1620                 /* Update Smart Fan I/II tolerance */
1621                 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1622                 data->tolerance[0] = reg_tmp & 0x0f;
1623                 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1624                 data->tolerance[2] = w83792d_read_value(client,
1625                                         W83792D_REG_TOLERANCE[2]) & 0x0f;
1626
1627                 /* Update Smart Fan II temperature points */
1628                 for (i = 0; i < 3; i++) {
1629                         for (j = 0; j < 4; j++) {
1630                                 data->sf2_points[i][j] = w83792d_read_value(
1631                                         client,W83792D_REG_POINTS[i][j]) & 0x7f;
1632                         }
1633                 }
1634
1635                 /* Update Smart Fan II duty cycle levels */
1636                 for (i = 0; i < 3; i++) {
1637                         reg_tmp = w83792d_read_value(client,
1638                                                 W83792D_REG_LEVELS[i][0]);
1639                         data->sf2_levels[i][0] = reg_tmp & 0x0f;
1640                         data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1641                         reg_tmp = w83792d_read_value(client,
1642                                                 W83792D_REG_LEVELS[i][2]);
1643                         data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1644                         data->sf2_levels[i][3] = reg_tmp & 0x0f;
1645                 }
1646
1647                 data->last_updated = jiffies;
1648                 data->valid = 1;
1649         }
1650
1651         mutex_unlock(&data->update_lock);
1652
1653 #ifdef DEBUG
1654         w83792d_print_debug(data, dev);
1655 #endif
1656
1657         return data;
1658 }
1659
1660 #ifdef DEBUG
1661 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1662 {
1663         int i=0, j=0;
1664         dev_dbg(dev, "==========The following is the debug message...========\n");
1665         dev_dbg(dev, "9 set of Voltages: =====>\n");
1666         for (i=0; i<9; i++) {
1667                 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1668                 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1669                 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1670         }
1671         dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1672         dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1673         dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1674         for (i=0; i<7; i++) {
1675                 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1676                 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1677                 dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1678         }
1679         dev_dbg(dev, "3 set of Temperatures: =====>\n");
1680         for (i=0; i<3; i++) {
1681                 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1682         }
1683
1684         for (i=0; i<2; i++) {
1685                 for (j=0; j<6; j++) {
1686                         dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1687                                                         data->temp_add[i][j]);
1688                 }
1689         }
1690
1691         for (i=0; i<7; i++) {
1692                 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1693         }
1694         dev_dbg(dev, "==========End of the debug message...==================\n");
1695         dev_dbg(dev, "\n");
1696 }
1697 #endif
1698
1699 static int __init
1700 sensors_w83792d_init(void)
1701 {
1702         return i2c_add_driver(&w83792d_driver);
1703 }
1704
1705 static void __exit
1706 sensors_w83792d_exit(void)
1707 {
1708         i2c_del_driver(&w83792d_driver);
1709 }
1710
1711 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1712 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1713 MODULE_LICENSE("GPL");
1714
1715 module_init(sensors_w83792d_init);
1716 module_exit(sensors_w83792d_exit);
1717