drivers/hwmon/pc87360.c

   1 /*
   2  *  pc87360.c - Part of lm_sensors, Linux kernel modules
   3  *              for hardware monitoring
   4  *  Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
   5  *
   6  *  Copied from smsc47m1.c:
   7  *  Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  *  Supports the following chips:
  24  *
  25  *  Chip        #vin    #fan    #pwm    #temp   devid
  26  *  PC87360     -       2       2       -       0xE1
  27  *  PC87363     -       2       2       -       0xE8
  28  *  PC87364     -       3       3       -       0xE4
  29  *  PC87365     11      3       3       2       0xE5
  30  *  PC87366     11      3       3       3-4     0xE9
  31  *
  32  *  This driver assumes that no more than one chip is present, and one of
  33  *  the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
  34  */
  35
  36 #include <linux/module.h>
  37 #include <linux/init.h>
  38 #include <linux/slab.h>
  39 #include <linux/jiffies.h>
  40 #include <linux/i2c.h>
  41 #include <linux/i2c-isa.h>
  42 #include <linux/hwmon.h>
  43 #include <linux/hwmon-sysfs.h>
  44 #include <linux/hwmon-vid.h>
  45 #include <linux/err.h>
  46 #include <asm/io.h>
  47
  48 static u8 devid;
  49 static unsigned short address;
  50 static unsigned short extra_isa[3];
  51 static u8 confreg[4];
  52
  53 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
  54
  55 static int init = 1;
  56 module_param(init, int, 0);
  57 MODULE_PARM_DESC(init,
  58  "Chip initialization level:\n"
  59  " 0: None\n"
  60  "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
  61  " 2: Forcibly enable all voltage and temperature channels, except in9\n"
  62  " 3: Forcibly enable all voltage and temperature channels, including in9");
  63
  64 /*
  65  * Super-I/O registers and operations
  66  */
  67
  68 #define DEV     0x07    /* Register: Logical device select */
  69 #define DEVID   0x20    /* Register: Device ID */
  70 #define ACT     0x30    /* Register: Device activation */
  71 #define BASE    0x60    /* Register: Base address */
  72
  73 #define FSCM    0x09    /* Logical device: fans */
  74 #define VLM     0x0d    /* Logical device: voltages */
  75 #define TMS     0x0e    /* Logical device: temperatures */
  76 static const u8 logdev[3] = { FSCM, VLM, TMS };
  77
  78 #define LD_FAN          0
  79 #define LD_IN           1
  80 #define LD_TEMP         2
  81
  82 static inline void superio_outb(int sioaddr, int reg, int val)
  83 {
  84         outb(reg, sioaddr);
  85         outb(val, sioaddr+1);
  86 }
  87
  88 static inline int superio_inb(int sioaddr, int reg)
  89 {
  90         outb(reg, sioaddr);
  91         return inb(sioaddr+1);
  92 }
  93
  94 static inline void superio_exit(int sioaddr)
  95 {
  96         outb(0x02, sioaddr);
  97         outb(0x02, sioaddr+1);
  98 }
  99
 100 /*
 101  * Logical devices
 102  */
 103
 104 #define PC87360_EXTENT          0x10
 105 #define PC87365_REG_BANK        0x09
 106 #define NO_BANK                 0xff
 107
 108 /*
 109  * Fan registers and conversions
 110  */
 111
 112 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
 113 #define PC87360_REG_PRESCALE(nr)        (0x00 + 2 * (nr))
 114 #define PC87360_REG_PWM(nr)             (0x01 + 2 * (nr))
 115 #define PC87360_REG_FAN_MIN(nr)         (0x06 + 3 * (nr))
 116 #define PC87360_REG_FAN(nr)             (0x07 + 3 * (nr))
 117 #define PC87360_REG_FAN_STATUS(nr)      (0x08 + 3 * (nr))
 118
 119 #define FAN_FROM_REG(val,div)           ((val) == 0 ? 0: \
 120                                          480000 / ((val)*(div)))
 121 #define FAN_TO_REG(val,div)             ((val) <= 100 ? 0 : \
 122                                          480000 / ((val)*(div)))
 123 #define FAN_DIV_FROM_REG(val)           (1 << ((val >> 5) & 0x03))
 124 #define FAN_STATUS_FROM_REG(val)        ((val) & 0x07)
 125
 126 #define FAN_CONFIG_MONITOR(val,nr)      (((val) >> (2 + nr * 3)) & 1)
 127 #define FAN_CONFIG_CONTROL(val,nr)      (((val) >> (3 + nr * 3)) & 1)
 128 #define FAN_CONFIG_INVERT(val,nr)       (((val) >> (4 + nr * 3)) & 1)
 129
 130 #define PWM_FROM_REG(val,inv)           ((inv) ? 255 - (val) : (val))
 131 static inline u8 PWM_TO_REG(int val, int inv)
 132 {
 133         if (inv)
 134                 val = 255 - val;
 135         if (val < 0)
 136                 return 0;
 137         if (val > 255)
 138                 return 255;
 139         return val;
 140 }
 141
 142 /*
 143  * Voltage registers and conversions
 144  */
 145
 146 #define PC87365_REG_IN_CONVRATE         0x07
 147 #define PC87365_REG_IN_CONFIG           0x08
 148 #define PC87365_REG_IN                  0x0B
 149 #define PC87365_REG_IN_MIN              0x0D
 150 #define PC87365_REG_IN_MAX              0x0C
 151 #define PC87365_REG_IN_STATUS           0x0A
 152 #define PC87365_REG_IN_ALARMS1          0x00
 153 #define PC87365_REG_IN_ALARMS2          0x01
 154 #define PC87365_REG_VID                 0x06
 155
 156 #define IN_FROM_REG(val,ref)            (((val) * (ref) + 128) / 256)
 157 #define IN_TO_REG(val,ref)              ((val) < 0 ? 0 : \
 158                                          (val)*256 >= (ref)*255 ? 255: \
 159                                          ((val) * 256 + (ref)/2) / (ref))
 160
 161 /*
 162  * Temperature registers and conversions
 163  */
 164
 165 #define PC87365_REG_TEMP_CONFIG         0x08
 166 #define PC87365_REG_TEMP                0x0B
 167 #define PC87365_REG_TEMP_MIN            0x0D
 168 #define PC87365_REG_TEMP_MAX            0x0C
 169 #define PC87365_REG_TEMP_CRIT           0x0E
 170 #define PC87365_REG_TEMP_STATUS         0x0A
 171 #define PC87365_REG_TEMP_ALARMS         0x00
 172
 173 #define TEMP_FROM_REG(val)              ((val) * 1000)
 174 #define TEMP_TO_REG(val)                ((val) < -55000 ? -55 : \
 175                                          (val) > 127000 ? 127 : \
 176                                          (val) < 0 ? ((val) - 500) / 1000 : \
 177                                          ((val) + 500) / 1000)
 178
 179 /*
 180  * Client data (each client gets its own)
 181  */
 182
 183 struct pc87360_data {
 184         struct i2c_client client;
 185         struct class_device *class_dev;
 186         struct semaphore lock;
 187         struct semaphore update_lock;
 188         char valid;             /* !=0 if following fields are valid */
 189         unsigned long last_updated;     /* In jiffies */
 190
 191         int address[3];
 192
 193         u8 fannr, innr, tempnr;
 194
 195         u8 fan[3];              /* Register value */
 196         u8 fan_min[3];          /* Register value */
 197         u8 fan_status[3];       /* Register value */
 198         u8 pwm[3];              /* Register value */
 199         u16 fan_conf;           /* Configuration register values, combined */
 200
 201         u16 in_vref;            /* 1 mV/bit */
 202         u8 in[14];              /* Register value */
 203         u8 in_min[14];          /* Register value */
 204         u8 in_max[14];          /* Register value */
 205         u8 in_crit[3];          /* Register value */
 206         u8 in_status[14];       /* Register value */
 207         u16 in_alarms;          /* Register values, combined, masked */
 208         u8 vid_conf;            /* Configuration register value */
 209         u8 vrm;
 210         u8 vid;                 /* Register value */
 211
 212         s8 temp[3];             /* Register value */
 213         s8 temp_min[3];         /* Register value */
 214         s8 temp_max[3];         /* Register value */
 215         s8 temp_crit[3];        /* Register value */
 216         u8 temp_status[3];      /* Register value */
 217         u8 temp_alarms;         /* Register value, masked */
 218 };
 219
 220 /*
 221  * Functions declaration
 222  */
 223
 224 static int pc87360_detect(struct i2c_adapter *adapter);
 225 static int pc87360_detach_client(struct i2c_client *client);
 226
 227 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
 228                               u8 reg);
 229 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
 230                                 u8 reg, u8 value);
 231 static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
 232 static struct pc87360_data *pc87360_update_device(struct device *dev);
 233
 234 /*
 235  * Driver data (common to all clients)
 236  */
 237
 238 static struct i2c_driver pc87360_driver = {
 239         .driver = {
 240                 .name   = "pc87360",
 241         },
 242         .attach_adapter = pc87360_detect,
 243         .detach_client  = pc87360_detach_client,
 244 };
 245
 246 /*
 247  * Sysfs stuff
 248  */
 249
 250 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
 251 {
 252         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 253         struct pc87360_data *data = pc87360_update_device(dev);
 254         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
 255                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 256 }
 257 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
 258 {
 259         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 260         struct pc87360_data *data = pc87360_update_device(dev);
 261         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
 262                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 263 }
 264 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 265 {
 266         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 267         struct pc87360_data *data = pc87360_update_device(dev);
 268         return sprintf(buf, "%u\n",
 269                        FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 270 }
 271 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
 272 {
 273         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 274         struct pc87360_data *data = pc87360_update_device(dev);
 275         return sprintf(buf, "%u\n",
 276                        FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
 277 }
 278 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 279         size_t count)
 280 {
 281         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 282         struct i2c_client *client = to_i2c_client(dev);
 283         struct pc87360_data *data = i2c_get_clientdata(client);
 284         long fan_min = simple_strtol(buf, NULL, 10);
 285
 286         down(&data->update_lock);
 287         fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 288
 289         /* If it wouldn't fit, change clock divisor */
 290         while (fan_min > 255
 291             && (data->fan_status[attr->index] & 0x60) != 0x60) {
 292                 fan_min >>= 1;
 293                 data->fan[attr->index] >>= 1;
 294                 data->fan_status[attr->index] += 0x20;
 295         }
 296         data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
 297         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
 298                             data->fan_min[attr->index]);
 299
 300         /* Write new divider, preserve alarm bits */
 301         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
 302                             data->fan_status[attr->index] & 0xF9);
 303         up(&data->update_lock);
 304
 305         return count;
 306 }
 307
 308 #define show_and_set_fan(offset) \
 309 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
 310         show_fan_input, NULL, offset-1); \
 311 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
 312         show_fan_min, set_fan_min, offset-1); \
 313 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
 314         show_fan_div, NULL, offset-1); \
 315 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
 316         show_fan_status, NULL, offset-1);
 317 show_and_set_fan(1)
 318 show_and_set_fan(2)
 319 show_and_set_fan(3)
 320
 321 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
 322 {
 323         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 324         struct pc87360_data *data = pc87360_update_device(dev);
 325         return sprintf(buf, "%u\n",
 326                        PWM_FROM_REG(data->pwm[attr->index],
 327                                     FAN_CONFIG_INVERT(data->fan_conf,
 328                                                       attr->index)));
 329 }
 330 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
 331         size_t count)
 332 {
 333         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 334         struct i2c_client *client = to_i2c_client(dev);
 335         struct pc87360_data *data = i2c_get_clientdata(client);
 336         long val = simple_strtol(buf, NULL, 10);
 337
 338         down(&data->update_lock);
 339         data->pwm[attr->index] = PWM_TO_REG(val,
 340                               FAN_CONFIG_INVERT(data->fan_conf, attr->index));
 341         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
 342                             data->pwm[attr->index]);
 343         up(&data->update_lock);
 344         return count;
 345 }
 346
 347 #define show_and_set_pwm(offset) \
 348 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
 349         show_pwm, set_pwm, offset-1);
 350 show_and_set_pwm(1)
 351 show_and_set_pwm(2)
 352 show_and_set_pwm(3)
 353
 354 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
 355 {
 356         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 357         struct pc87360_data *data = pc87360_update_device(dev);
 358         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 359                        data->in_vref));
 360 }
 361 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
 362 {
 363         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 364         struct pc87360_data *data = pc87360_update_device(dev);
 365         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 366                        data->in_vref));
 367 }
 368 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
 369 {
 370         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 371         struct pc87360_data *data = pc87360_update_device(dev);
 372         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 373                        data->in_vref));
 374 }
 375 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
 376 {
 377         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 378         struct pc87360_data *data = pc87360_update_device(dev);
 379         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 380 }
 381 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 382         size_t count)
 383 {
 384         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 385         struct i2c_client *client = to_i2c_client(dev);
 386         struct pc87360_data *data = i2c_get_clientdata(client);
 387         long val = simple_strtol(buf, NULL, 10);
 388
 389         down(&data->update_lock);
 390         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 391         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
 392                             data->in_min[attr->index]);
 393         up(&data->update_lock);
 394         return count;
 395 }
 396 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 397         size_t count)
 398 {
 399         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 400         struct i2c_client *client = to_i2c_client(dev);
 401         struct pc87360_data *data = i2c_get_clientdata(client);
 402         long val = simple_strtol(buf, NULL, 10);
 403
 404         down(&data->update_lock);
 405         data->in_max[attr->index] = IN_TO_REG(val,
 406                                data->in_vref);
 407         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
 408                             data->in_max[attr->index]);
 409         up(&data->update_lock);
 410         return count;
 411 }
 412
 413 #define show_and_set_in(offset) \
 414 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
 415         show_in_input, NULL, offset); \
 416 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
 417         show_in_min, set_in_min, offset); \
 418 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
 419         show_in_max, set_in_max, offset); \
 420 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
 421         show_in_status, NULL, offset);
 422 show_and_set_in(0)
 423 show_and_set_in(1)
 424 show_and_set_in(2)
 425 show_and_set_in(3)
 426 show_and_set_in(4)
 427 show_and_set_in(5)
 428 show_and_set_in(6)
 429 show_and_set_in(7)
 430 show_and_set_in(8)
 431 show_and_set_in(9)
 432 show_and_set_in(10)
 433
 434 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
 435 {
 436         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 437         struct pc87360_data *data = pc87360_update_device(dev);
 438         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 439                        data->in_vref));
 440 }
 441 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
 442 {
 443         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 444         struct pc87360_data *data = pc87360_update_device(dev);
 445         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 446                        data->in_vref));
 447 }
 448 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
 449 {
 450         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 451         struct pc87360_data *data = pc87360_update_device(dev);
 452         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 453                        data->in_vref));
 454 }
 455 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 456 {
 457         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 458         struct pc87360_data *data = pc87360_update_device(dev);
 459         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
 460                        data->in_vref));
 461 }
 462 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
 463 {
 464         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 465         struct pc87360_data *data = pc87360_update_device(dev);
 466         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 467 }
 468 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 469         size_t count)
 470 {
 471         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 472         struct i2c_client *client = to_i2c_client(dev);
 473         struct pc87360_data *data = i2c_get_clientdata(client);
 474         long val = simple_strtol(buf, NULL, 10);
 475
 476         down(&data->update_lock);
 477         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 478         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
 479                             data->in_min[attr->index]);
 480         up(&data->update_lock);
 481         return count;
 482 }
 483 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 484         size_t count)
 485 {
 486         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 487         struct i2c_client *client = to_i2c_client(dev);
 488         struct pc87360_data *data = i2c_get_clientdata(client);
 489         long val = simple_strtol(buf, NULL, 10);
 490
 491         down(&data->update_lock);
 492         data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
 493         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
 494                             data->in_max[attr->index]);
 495         up(&data->update_lock);
 496         return count;
 497 }
 498 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 499         size_t count)
 500 {
 501         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 502         struct i2c_client *client = to_i2c_client(dev);
 503         struct pc87360_data *data = i2c_get_clientdata(client);
 504         long val = simple_strtol(buf, NULL, 10);
 505
 506         down(&data->update_lock);
 507         data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
 508         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
 509                             data->in_crit[attr->index-11]);
 510         up(&data->update_lock);
 511         return count;
 512 }
 513
 514 #define show_and_set_therm(offset) \
 515 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 516         show_therm_input, NULL, 11+offset-4); \
 517 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 518         show_therm_min, set_therm_min, 11+offset-4); \
 519 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 520         show_therm_max, set_therm_max, 11+offset-4); \
 521 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 522         show_therm_crit, set_therm_crit, 11+offset-4); \
 523 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 524         show_therm_status, NULL, 11+offset-4);
 525 show_and_set_therm(4)
 526 show_and_set_therm(5)
 527 show_and_set_therm(6)
 528
 529 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
 530 {
 531         struct pc87360_data *data = pc87360_update_device(dev);
 532         return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
 533 }
 534 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 535
 536 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
 537 {
 538         struct pc87360_data *data = pc87360_update_device(dev);
 539         return sprintf(buf, "%u\n", data->vrm);
 540 }
 541 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 542 {
 543         struct i2c_client *client = to_i2c_client(dev);
 544         struct pc87360_data *data = i2c_get_clientdata(client);
 545         data->vrm = simple_strtoul(buf, NULL, 10);
 546         return count;
 547 }
 548 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
 549
 550 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 551 {
 552         struct pc87360_data *data = pc87360_update_device(dev);
 553         return sprintf(buf, "%u\n", data->in_alarms);
 554 }
 555 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
 556
 557 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
 558 {
 559         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 560         struct pc87360_data *data = pc87360_update_device(dev);
 561         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 562 }
 563 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
 564 {
 565         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 566         struct pc87360_data *data = pc87360_update_device(dev);
 567         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
 568 }
 569 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
 570 {
 571         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 572         struct pc87360_data *data = pc87360_update_device(dev);
 573         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
 574 }
 575 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 576 {
 577         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 578         struct pc87360_data *data = pc87360_update_device(dev);
 579         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
 580 }
 581 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
 582 {
 583         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 584         struct pc87360_data *data = pc87360_update_device(dev);
 585         return sprintf(buf, "%d\n", data->temp_status[attr->index]);
 586 }
 587 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 588         size_t count)
 589 {
 590         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 591         struct i2c_client *client = to_i2c_client(dev);
 592         struct pc87360_data *data = i2c_get_clientdata(client);
 593         long val = simple_strtol(buf, NULL, 10);
 594
 595         down(&data->update_lock);
 596         data->temp_min[attr->index] = TEMP_TO_REG(val);
 597         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
 598                             data->temp_min[attr->index]);
 599         up(&data->update_lock);
 600         return count;
 601 }
 602 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 603         size_t count)
 604 {
 605         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 606         struct i2c_client *client = to_i2c_client(dev);
 607         struct pc87360_data *data = i2c_get_clientdata(client);
 608         long val = simple_strtol(buf, NULL, 10);
 609
 610         down(&data->update_lock);
 611         data->temp_max[attr->index] = TEMP_TO_REG(val);
 612         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
 613                             data->temp_max[attr->index]);
 614         up(&data->update_lock);
 615         return count;
 616 }
 617 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 618         size_t count)
 619 {
 620         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 621         struct i2c_client *client = to_i2c_client(dev);
 622         struct pc87360_data *data = i2c_get_clientdata(client);
 623         long val = simple_strtol(buf, NULL, 10);
 624
 625         down(&data->update_lock);
 626         data->temp_crit[attr->index] = TEMP_TO_REG(val);
 627         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
 628                             data->temp_crit[attr->index]);
 629         up(&data->update_lock);
 630         return count;
 631 }
 632
 633 #define show_and_set_temp(offset) \
 634 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 635         show_temp_input, NULL, offset-1); \
 636 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 637         show_temp_min, set_temp_min, offset-1); \
 638 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 639         show_temp_max, set_temp_max, offset-1); \
 640 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 641         show_temp_crit, set_temp_crit, offset-1); \
 642 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 643         show_temp_status, NULL, offset-1);
 644 show_and_set_temp(1)
 645 show_and_set_temp(2)
 646 show_and_set_temp(3)
 647
 648 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 649 {
 650         struct pc87360_data *data = pc87360_update_device(dev);
 651         return sprintf(buf, "%u\n", data->temp_alarms);
 652 }
 653 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
 654
 655 /*
 656  * Device detection, registration and update
 657  */
 658
 659 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
 660 {
 661         u16 val;
 662         int i;
 663         int nrdev; /* logical device count */
 664
 665         /* No superio_enter */
 666
 667         /* Identify device */
 668         val = superio_inb(sioaddr, DEVID);
 669         switch (val) {
 670         case 0xE1: /* PC87360 */
 671         case 0xE8: /* PC87363 */
 672         case 0xE4: /* PC87364 */
 673                 nrdev = 1;
 674                 break;
 675         case 0xE5: /* PC87365 */
 676         case 0xE9: /* PC87366 */
 677                 nrdev = 3;
 678                 break;
 679         default:
 680                 superio_exit(sioaddr);
 681                 return -ENODEV;
 682         }
 683         /* Remember the device id */
 684         *devid = val;
 685
 686         for (i = 0; i < nrdev; i++) {
 687                 /* select logical device */
 688                 superio_outb(sioaddr, DEV, logdev[i]);
 689
 690                 val = superio_inb(sioaddr, ACT);
 691                 if (!(val & 0x01)) {
 692                         printk(KERN_INFO "pc87360: Device 0x%02x not "
 693                                "activated\n", logdev[i]);
 694                         continue;
 695                 }
 696
 697                 val = (superio_inb(sioaddr, BASE) << 8)
 698                     | superio_inb(sioaddr, BASE + 1);
 699                 if (!val) {
 700                         printk(KERN_INFO "pc87360: Base address not set for "
 701                                "device 0x%02x\n", logdev[i]);
 702                         continue;
 703                 }
 704
 705                 addresses[i] = val;
 706
 707                 if (i==0) { /* Fans */
 708                         confreg[0] = superio_inb(sioaddr, 0xF0);
 709                         confreg[1] = superio_inb(sioaddr, 0xF1);
 710
 711 #ifdef DEBUG
 712                         printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
 713                                "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
 714                                (confreg[0]>>3)&1, (confreg[0]>>4)&1);
 715                         printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
 716                                "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
 717                                (confreg[0]>>6)&1, (confreg[0]>>7)&1);
 718                         printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
 719                                "ctrl=%d inv=%d\n", confreg[1]&1,
 720                                (confreg[1]>>1)&1, (confreg[1]>>2)&1);
 721 #endif
 722                 } else if (i==1) { /* Voltages */
 723                         /* Are we using thermistors? */
 724                         if (*devid == 0xE9) { /* PC87366 */
 725                                 /* These registers are not logical-device
 726                                    specific, just that we won't need them if
 727                                    we don't use the VLM device */
 728                                 confreg[2] = superio_inb(sioaddr, 0x2B);
 729                                 confreg[3] = superio_inb(sioaddr, 0x25);
 730
 731                                 if (confreg[2] & 0x40) {
 732                                         printk(KERN_INFO "pc87360: Using "
 733                                                "thermistors for temperature "
 734                                                "monitoring\n");
 735                                 }
 736                                 if (confreg[3] & 0xE0) {
 737                                         printk(KERN_INFO "pc87360: VID "
 738                                                "inputs routed (mode %u)\n",
 739                                                confreg[3] >> 5);
 740                                 }
 741                         }
 742                 }
 743         }
 744
 745         superio_exit(sioaddr);
 746         return 0;
 747 }
 748
 749 static int pc87360_detect(struct i2c_adapter *adapter)
 750 {
 751         int i;
 752         struct i2c_client *new_client;
 753         struct pc87360_data *data;
 754         int err = 0;
 755         const char *name = "pc87360";
 756         int use_thermistors = 0;
 757
 758         if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
 759                 return -ENOMEM;
 760
 761         new_client = &data->client;
 762         i2c_set_clientdata(new_client, data);
 763         new_client->addr = address;
 764         init_MUTEX(&data->lock);
 765         new_client->adapter = adapter;
 766         new_client->driver = &pc87360_driver;
 767         new_client->flags = 0;
 768
 769         data->fannr = 2;
 770         data->innr = 0;
 771         data->tempnr = 0;
 772
 773         switch (devid) {
 774         case 0xe8:
 775                 name = "pc87363";
 776                 break;
 777         case 0xe4:
 778                 name = "pc87364";
 779                 data->fannr = 3;
 780                 break;
 781         case 0xe5:
 782                 name = "pc87365";
 783                 data->fannr = extra_isa[0] ? 3 : 0;
 784                 data->innr = extra_isa[1] ? 11 : 0;
 785                 data->tempnr = extra_isa[2] ? 2 : 0;
 786                 break;
 787         case 0xe9:
 788                 name = "pc87366";
 789                 data->fannr = extra_isa[0] ? 3 : 0;
 790                 data->innr = extra_isa[1] ? 14 : 0;
 791                 data->tempnr = extra_isa[2] ? 3 : 0;
 792                 break;
 793         }
 794
 795         strcpy(new_client->name, name);
 796         data->valid = 0;
 797         init_MUTEX(&data->update_lock);
 798
 799         for (i = 0; i < 3; i++) {
 800                 if (((data->address[i] = extra_isa[i]))
 801                  && !request_region(extra_isa[i], PC87360_EXTENT,
 802                                     pc87360_driver.driver.name)) {
 803                         dev_err(&new_client->dev, "Region 0x%x-0x%x already "
 804                                 "in use!\n", extra_isa[i],
 805                                 extra_isa[i]+PC87360_EXTENT-1);
 806                         for (i--; i >= 0; i--)
 807                                 release_region(extra_isa[i], PC87360_EXTENT);
 808                         err = -EBUSY;
 809                         goto ERROR1;
 810                 }
 811         }
 812
 813         /* Retrieve the fans configuration from Super-I/O space */
 814         if (data->fannr)
 815                 data->fan_conf = confreg[0] | (confreg[1] << 8);
 816
 817         if ((err = i2c_attach_client(new_client)))
 818                 goto ERROR2;
 819
 820         /* Use the correct reference voltage
 821            Unless both the VLM and the TMS logical devices agree to
 822            use an external Vref, the internal one is used. */
 823         if (data->innr) {
 824                 i = pc87360_read_value(data, LD_IN, NO_BANK,
 825                                        PC87365_REG_IN_CONFIG);
 826                 if (data->tempnr) {
 827                         i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
 828                                                 PC87365_REG_TEMP_CONFIG);
 829                 }
 830                 data->in_vref = (i&0x02) ? 3025 : 2966;
 831                 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
 832                         (i&0x02) ? "external" : "internal");
 833
 834                 data->vid_conf = confreg[3];
 835                 data->vrm = 90;
 836         }
 837
 838         /* Fan clock dividers may be needed before any data is read */
 839         for (i = 0; i < data->fannr; i++) {
 840                 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
 841                         data->fan_status[i] = pc87360_read_value(data,
 842                                               LD_FAN, NO_BANK,
 843                                               PC87360_REG_FAN_STATUS(i));
 844         }
 845
 846         if (init > 0) {
 847                 if (devid == 0xe9 && data->address[1]) /* PC87366 */
 848                         use_thermistors = confreg[2] & 0x40;
 849
 850                 pc87360_init_client(new_client, use_thermistors);
 851         }
 852
 853         /* Register sysfs hooks */
 854         data->class_dev = hwmon_device_register(&new_client->dev);
 855         if (IS_ERR(data->class_dev)) {
 856                 err = PTR_ERR(data->class_dev);
 857                 goto ERROR3;
 858         }
 859
 860         if (data->innr) {
 861                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
 862                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
 863                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
 864                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
 865                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
 866                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
 867                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
 868                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
 869                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
 870                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
 871                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
 872                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
 873                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
 874                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
 875                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
 876                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
 877                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
 878                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
 879                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
 880                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
 881                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
 882                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
 883                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
 884                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
 885                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
 886                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
 887                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
 888                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
 889                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
 890                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
 891                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
 892                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
 893                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
 894                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr);
 895                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr);
 896                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr);
 897                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr);
 898                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr);
 899                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr);
 900                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr);
 901                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr);
 902                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr);
 903                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr);
 904                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr);
 905
 906                 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
 907                 device_create_file(&new_client->dev, &dev_attr_vrm);
 908                 device_create_file(&new_client->dev, &dev_attr_alarms_in);
 909         }
 910
 911         if (data->tempnr) {
 912                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
 913                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
 914                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
 915                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
 916                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
 917                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
 918                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
 919                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
 920                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr);
 921                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr);
 922
 923                 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
 924         }
 925         if (data->tempnr == 3) {
 926                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
 927                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
 928                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
 929                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
 930                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr);
 931         }
 932         if (data->innr == 14) {
 933                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr);
 934                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr);
 935                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr);
 936                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr);
 937                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr);
 938                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr);
 939                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr);
 940                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr);
 941                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr);
 942                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr);
 943                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr);
 944                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr);
 945                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr);
 946                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr);
 947                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr);
 948         }
 949
 950         if (data->fannr) {
 951                 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
 952                         device_create_file(&new_client->dev,
 953                                            &sensor_dev_attr_fan1_input.dev_attr);
 954                         device_create_file(&new_client->dev,
 955                                            &sensor_dev_attr_fan1_min.dev_attr);
 956                         device_create_file(&new_client->dev,
 957                                            &sensor_dev_attr_fan1_div.dev_attr);
 958                         device_create_file(&new_client->dev,
 959                                            &sensor_dev_attr_fan1_status.dev_attr);
 960                 }
 961
 962                 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
 963                         device_create_file(&new_client->dev,
 964                                            &sensor_dev_attr_fan2_input.dev_attr);
 965                         device_create_file(&new_client->dev,
 966                                            &sensor_dev_attr_fan2_min.dev_attr);
 967                         device_create_file(&new_client->dev,
 968                                            &sensor_dev_attr_fan2_div.dev_attr);
 969                         device_create_file(&new_client->dev,
 970                                            &sensor_dev_attr_fan2_status.dev_attr);
 971                 }
 972
 973                 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
 974                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr);
 975                 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
 976                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr);
 977         }
 978         if (data->fannr == 3) {
 979                 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
 980                         device_create_file(&new_client->dev,
 981                                            &sensor_dev_attr_fan3_input.dev_attr);
 982                         device_create_file(&new_client->dev,
 983                                            &sensor_dev_attr_fan3_min.dev_attr);
 984                         device_create_file(&new_client->dev,
 985                                            &sensor_dev_attr_fan3_div.dev_attr);
 986                         device_create_file(&new_client->dev,
 987                                            &sensor_dev_attr_fan3_status.dev_attr);
 988                 }
 989
 990                 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
 991                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr);
 992         }
 993
 994         return 0;
 995
 996 ERROR3:
 997         i2c_detach_client(new_client);
 998 ERROR2:
 999         for (i = 0; i < 3; i++) {
1000                 if (data->address[i]) {
1001                         release_region(data->address[i], PC87360_EXTENT);
1002                 }
1003         }
1004 ERROR1:
1005         kfree(data);
1006         return err;
1007 }
1008
1009 static int pc87360_detach_client(struct i2c_client *client)
1010 {
1011         struct pc87360_data *data = i2c_get_clientdata(client);
1012         int i;
1013
1014         hwmon_device_unregister(data->class_dev);
1015
1016         if ((i = i2c_detach_client(client)))
1017                 return i;
1018
1019         for (i = 0; i < 3; i++) {
1020                 if (data->address[i]) {
1021                         release_region(data->address[i], PC87360_EXTENT);
1022                 }
1023         }
1024         kfree(data);
1025
1026         return 0;
1027 }
1028
1029 /* ldi is the logical device index
1030    bank is for voltages and temperatures only */
1031 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1032                               u8 reg)
1033 {
1034         int res;
1035
1036         down(&(data->lock));
1037         if (bank != NO_BANK)
1038                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1039         res = inb_p(data->address[ldi] + reg);
1040         up(&(data->lock));
1041
1042         return res;
1043 }
1044
1045 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1046                                 u8 reg, u8 value)
1047 {
1048         down(&(data->lock));
1049         if (bank != NO_BANK)
1050                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1051         outb_p(value, data->address[ldi] + reg);
1052         up(&(data->lock));
1053 }
1054
1055 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1056 {
1057         struct pc87360_data *data = i2c_get_clientdata(client);
1058         int i, nr;
1059         const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1060         const u8 init_temp[3] = { 2, 2, 1 };
1061         u8 reg;
1062
1063         if (init >= 2 && data->innr) {
1064                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1065                                          PC87365_REG_IN_CONVRATE);
1066                 dev_info(&client->dev, "VLM conversion set to "
1067                          "1s period, 160us delay\n");
1068                 pc87360_write_value(data, LD_IN, NO_BANK,
1069                                     PC87365_REG_IN_CONVRATE,
1070                                     (reg & 0xC0) | 0x11);
1071         }
1072
1073         nr = data->innr < 11 ? data->innr : 11;
1074         for (i=0; i<nr; i++) {
1075                 if (init >= init_in[i]) {
1076                         /* Forcibly enable voltage channel */
1077                         reg = pc87360_read_value(data, LD_IN, i,
1078                                                  PC87365_REG_IN_STATUS);
1079                         if (!(reg & 0x01)) {
1080                                 dev_dbg(&client->dev, "Forcibly "
1081                                         "enabling in%d\n", i);
1082                                 pc87360_write_value(data, LD_IN, i,
1083                                                     PC87365_REG_IN_STATUS,
1084                                                     (reg & 0x68) | 0x87);
1085                         }
1086                 }
1087         }
1088
1089         /* We can't blindly trust the Super-I/O space configuration bit,
1090            most BIOS won't set it properly */
1091         for (i=11; i<data->innr; i++) {
1092                 reg = pc87360_read_value(data, LD_IN, i,
1093                                          PC87365_REG_TEMP_STATUS);
1094                 use_thermistors = use_thermistors || (reg & 0x01);
1095         }
1096
1097         i = use_thermistors ? 2 : 0;
1098         for (; i<data->tempnr; i++) {
1099                 if (init >= init_temp[i]) {
1100                         /* Forcibly enable temperature channel */
1101                         reg = pc87360_read_value(data, LD_TEMP, i,
1102                                                  PC87365_REG_TEMP_STATUS);
1103                         if (!(reg & 0x01)) {
1104                                 dev_dbg(&client->dev, "Forcibly "
1105                                         "enabling temp%d\n", i+1);
1106                                 pc87360_write_value(data, LD_TEMP, i,
1107                                                     PC87365_REG_TEMP_STATUS,
1108                                                     0xCF);
1109                         }
1110                 }
1111         }
1112
1113         if (use_thermistors) {
1114                 for (i=11; i<data->innr; i++) {
1115                         if (init >= init_in[i]) {
1116                                 /* The pin may already be used by thermal
1117                                    diodes */
1118                                 reg = pc87360_read_value(data, LD_TEMP,
1119                                       (i-11)/2, PC87365_REG_TEMP_STATUS);
1120                                 if (reg & 0x01) {
1121                                         dev_dbg(&client->dev, "Skipping "
1122                                                 "temp%d, pin already in use "
1123                                                 "by temp%d\n", i-7, (i-11)/2);
1124                                         continue;
1125                                 }
1126
1127                                 /* Forcibly enable thermistor channel */
1128                                 reg = pc87360_read_value(data, LD_IN, i,
1129                                                          PC87365_REG_IN_STATUS);
1130                                 if (!(reg & 0x01)) {
1131                                         dev_dbg(&client->dev, "Forcibly "
1132                                                 "enabling temp%d\n", i-7);
1133                                         pc87360_write_value(data, LD_IN, i,
1134                                                 PC87365_REG_TEMP_STATUS,
1135                                                 (reg & 0x60) | 0x8F);
1136                                 }
1137                         }
1138                 }
1139         }
1140
1141         if (data->innr) {
1142                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1143                                          PC87365_REG_IN_CONFIG);
1144                 if (reg & 0x01) {
1145                         dev_dbg(&client->dev, "Forcibly "
1146                                 "enabling monitoring (VLM)\n");
1147                         pc87360_write_value(data, LD_IN, NO_BANK,
1148                                             PC87365_REG_IN_CONFIG,
1149                                             reg & 0xFE);
1150                 }
1151         }
1152
1153         if (data->tempnr) {
1154                 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1155                                          PC87365_REG_TEMP_CONFIG);
1156                 if (reg & 0x01) {
1157                         dev_dbg(&client->dev, "Forcibly enabling "
1158                                 "monitoring (TMS)\n");
1159                         pc87360_write_value(data, LD_TEMP, NO_BANK,
1160                                             PC87365_REG_TEMP_CONFIG,
1161                                             reg & 0xFE);
1162                 }
1163
1164                 if (init >= 2) {
1165                         /* Chip config as documented by National Semi. */
1166                         pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1167                         /* We voluntarily omit the bank here, in case the
1168                            sequence itself matters. It shouldn't be a problem,
1169                            since nobody else is supposed to access the
1170                            device at that point. */
1171                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1172                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1173                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1174                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1175                 }
1176         }
1177 }
1178
1179 static void pc87360_autodiv(struct i2c_client *client, int nr)
1180 {
1181         struct pc87360_data *data = i2c_get_clientdata(client);
1182         u8 old_min = data->fan_min[nr];
1183
1184         /* Increase clock divider if needed and possible */
1185         if ((data->fan_status[nr] & 0x04) /* overflow flag */
1186          || (data->fan[nr] >= 224)) { /* next to overflow */
1187                 if ((data->fan_status[nr] & 0x60) != 0x60) {
1188                         data->fan_status[nr] += 0x20;
1189                         data->fan_min[nr] >>= 1;
1190                         data->fan[nr] >>= 1;
1191                         dev_dbg(&client->dev, "Increasing "
1192                                 "clock divider to %d for fan %d\n",
1193                                 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1194                 }
1195         } else {
1196                 /* Decrease clock divider if possible */
1197                 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1198                  && data->fan[nr] < 85 /* bad accuracy */
1199                  && (data->fan_status[nr] & 0x60) != 0x00) {
1200                         data->fan_status[nr] -= 0x20;
1201                         data->fan_min[nr] <<= 1;
1202                         data->fan[nr] <<= 1;
1203                         dev_dbg(&client->dev, "Decreasing "
1204                                 "clock divider to %d for fan %d\n",
1205                                 FAN_DIV_FROM_REG(data->fan_status[nr]),
1206                                 nr+1);
1207                 }
1208         }
1209
1210         /* Write new fan min if it changed */
1211         if (old_min != data->fan_min[nr]) {
1212                 pc87360_write_value(data, LD_FAN, NO_BANK,
1213                                     PC87360_REG_FAN_MIN(nr),
1214                                     data->fan_min[nr]);
1215         }
1216 }
1217
1218 static struct pc87360_data *pc87360_update_device(struct device *dev)
1219 {
1220         struct i2c_client *client = to_i2c_client(dev);
1221         struct pc87360_data *data = i2c_get_clientdata(client);
1222         u8 i;
1223
1224         down(&data->update_lock);
1225
1226         if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1227                 dev_dbg(&client->dev, "Data update\n");
1228
1229                 /* Fans */
1230                 for (i = 0; i < data->fannr; i++) {
1231                         if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1232                                 data->fan_status[i] =
1233                                         pc87360_read_value(data, LD_FAN,
1234                                         NO_BANK, PC87360_REG_FAN_STATUS(i));
1235                                 data->fan[i] = pc87360_read_value(data, LD_FAN,
1236                                                NO_BANK, PC87360_REG_FAN(i));
1237                                 data->fan_min[i] = pc87360_read_value(data,
1238                                                    LD_FAN, NO_BANK,
1239                                                    PC87360_REG_FAN_MIN(i));
1240                                 /* Change clock divider if needed */
1241                                 pc87360_autodiv(client, i);
1242                                 /* Clear bits and write new divider */
1243                                 pc87360_write_value(data, LD_FAN, NO_BANK,
1244                                                     PC87360_REG_FAN_STATUS(i),
1245                                                     data->fan_status[i]);
1246                         }
1247                         if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1248                                 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1249                                                NO_BANK, PC87360_REG_PWM(i));
1250                 }
1251
1252                 /* Voltages */
1253                 for (i = 0; i < data->innr; i++) {
1254                         data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1255                                              PC87365_REG_IN_STATUS);
1256                         /* Clear bits */
1257                         pc87360_write_value(data, LD_IN, i,
1258                                             PC87365_REG_IN_STATUS,
1259                                             data->in_status[i]);
1260                         if ((data->in_status[i] & 0x81) == 0x81) {
1261                                 data->in[i] = pc87360_read_value(data, LD_IN,
1262                                               i, PC87365_REG_IN);
1263                         }
1264                         if (data->in_status[i] & 0x01) {
1265                                 data->in_min[i] = pc87360_read_value(data,
1266                                                   LD_IN, i,
1267                                                   PC87365_REG_IN_MIN);
1268                                 data->in_max[i] = pc87360_read_value(data,
1269                                                   LD_IN, i,
1270                                                   PC87365_REG_IN_MAX);
1271                                 if (i >= 11)
1272                                         data->in_crit[i-11] =
1273                                                 pc87360_read_value(data, LD_IN,
1274                                                 i, PC87365_REG_TEMP_CRIT);
1275                         }
1276                 }
1277                 if (data->innr) {
1278                         data->in_alarms = pc87360_read_value(data, LD_IN,
1279                                           NO_BANK, PC87365_REG_IN_ALARMS1)
1280                                         | ((pc87360_read_value(data, LD_IN,
1281                                             NO_BANK, PC87365_REG_IN_ALARMS2)
1282                                             & 0x07) << 8);
1283                         data->vid = (data->vid_conf & 0xE0) ?
1284                                     pc87360_read_value(data, LD_IN,
1285                                     NO_BANK, PC87365_REG_VID) : 0x1F;
1286                 }
1287
1288                 /* Temperatures */
1289                 for (i = 0; i < data->tempnr; i++) {
1290                         data->temp_status[i] = pc87360_read_value(data,
1291                                                LD_TEMP, i,
1292                                                PC87365_REG_TEMP_STATUS);
1293                         /* Clear bits */
1294                         pc87360_write_value(data, LD_TEMP, i,
1295                                             PC87365_REG_TEMP_STATUS,
1296                                             data->temp_status[i]);
1297                         if ((data->temp_status[i] & 0x81) == 0x81) {
1298                                 data->temp[i] = pc87360_read_value(data,
1299                                                 LD_TEMP, i,
1300                                                 PC87365_REG_TEMP);
1301                         }
1302                         if (data->temp_status[i] & 0x01) {
1303                                 data->temp_min[i] = pc87360_read_value(data,
1304                                                     LD_TEMP, i,
1305                                                     PC87365_REG_TEMP_MIN);
1306                                 data->temp_max[i] = pc87360_read_value(data,
1307                                                     LD_TEMP, i,
1308                                                     PC87365_REG_TEMP_MAX);
1309                                 data->temp_crit[i] = pc87360_read_value(data,
1310                                                      LD_TEMP, i,
1311                                                      PC87365_REG_TEMP_CRIT);
1312                         }
1313                 }
1314                 if (data->tempnr) {
1315                         data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1316                                             NO_BANK, PC87365_REG_TEMP_ALARMS)
1317                                             & 0x3F;
1318                 }
1319
1320                 data->last_updated = jiffies;
1321                 data->valid = 1;
1322         }
1323
1324         up(&data->update_lock);
1325
1326         return data;
1327 }
1328
1329 static int __init pc87360_init(void)
1330 {
1331         int i;
1332
1333         if (pc87360_find(0x2e, &devid, extra_isa)
1334          && pc87360_find(0x4e, &devid, extra_isa)) {
1335                 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1336                        "module not inserted.\n");
1337                 return -ENODEV;
1338         }
1339
1340         /* Arbitrarily pick one of the addresses */
1341         for (i = 0; i < 3; i++) {
1342                 if (extra_isa[i] != 0x0000) {
1343                         address = extra_isa[i];
1344                         break;
1345                 }
1346         }
1347
1348         if (address == 0x0000) {
1349                 printk(KERN_WARNING "pc87360: No active logical device, "
1350                        "module not inserted.\n");
1351                 return -ENODEV;
1352         }
1353
1354         return i2c_isa_add_driver(&pc87360_driver);
1355 }
1356
1357 static void __exit pc87360_exit(void)
1358 {
1359         i2c_isa_del_driver(&pc87360_driver);
1360 }
1361
1362
1363 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1364 MODULE_DESCRIPTION("PC8736x hardware monitor");
1365 MODULE_LICENSE("GPL");
1366
1367 module_init(pc87360_init);
1368 module_exit(pc87360_exit);