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   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         .owner          = THIS_MODULE,
 240         .name           = "pc87360",
 241         .attach_adapter = pc87360_detect,
 242         .detach_client  = pc87360_detach_client,
 243 };
 244
 245 /*
 246  * Sysfs stuff
 247  */
 248
 249 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
 250 {
 251         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 252         struct pc87360_data *data = pc87360_update_device(dev);
 253         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
 254                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 255 }
 256 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
 257 {
 258         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 259         struct pc87360_data *data = pc87360_update_device(dev);
 260         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
 261                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 262 }
 263 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 264 {
 265         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 266         struct pc87360_data *data = pc87360_update_device(dev);
 267         return sprintf(buf, "%u\n",
 268                        FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 269 }
 270 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
 271 {
 272         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 273         struct pc87360_data *data = pc87360_update_device(dev);
 274         return sprintf(buf, "%u\n",
 275                        FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
 276 }
 277 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 278         size_t count)
 279 {
 280         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 281         struct i2c_client *client = to_i2c_client(dev);
 282         struct pc87360_data *data = i2c_get_clientdata(client);
 283         long fan_min = simple_strtol(buf, NULL, 10);
 284
 285         down(&data->update_lock);
 286         fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 287
 288         /* If it wouldn't fit, change clock divisor */
 289         while (fan_min > 255
 290             && (data->fan_status[attr->index] & 0x60) != 0x60) {
 291                 fan_min >>= 1;
 292                 data->fan[attr->index] >>= 1;
 293                 data->fan_status[attr->index] += 0x20;
 294         }
 295         data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
 296         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
 297                             data->fan_min[attr->index]);
 298
 299         /* Write new divider, preserve alarm bits */
 300         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
 301                             data->fan_status[attr->index] & 0xF9);
 302         up(&data->update_lock);
 303
 304         return count;
 305 }
 306
 307 #define show_and_set_fan(offset) \
 308 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
 309         show_fan_input, NULL, offset-1); \
 310 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
 311         show_fan_min, set_fan_min, offset-1); \
 312 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
 313         show_fan_div, NULL, offset-1); \
 314 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
 315         show_fan_status, NULL, offset-1);
 316 show_and_set_fan(1)
 317 show_and_set_fan(2)
 318 show_and_set_fan(3)
 319
 320 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
 321 {
 322         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 323         struct pc87360_data *data = pc87360_update_device(dev);
 324         return sprintf(buf, "%u\n",
 325                        PWM_FROM_REG(data->pwm[attr->index],
 326                                     FAN_CONFIG_INVERT(data->fan_conf,
 327                                                       attr->index)));
 328 }
 329 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
 330         size_t count)
 331 {
 332         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 333         struct i2c_client *client = to_i2c_client(dev);
 334         struct pc87360_data *data = i2c_get_clientdata(client);
 335         long val = simple_strtol(buf, NULL, 10);
 336
 337         down(&data->update_lock);
 338         data->pwm[attr->index] = PWM_TO_REG(val,
 339                               FAN_CONFIG_INVERT(data->fan_conf, attr->index));
 340         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
 341                             data->pwm[attr->index]);
 342         up(&data->update_lock);
 343         return count;
 344 }
 345
 346 #define show_and_set_pwm(offset) \
 347 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
 348         show_pwm, set_pwm, offset-1);
 349 show_and_set_pwm(1)
 350 show_and_set_pwm(2)
 351 show_and_set_pwm(3)
 352
 353 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
 354 {
 355         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 356         struct pc87360_data *data = pc87360_update_device(dev);
 357         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 358                        data->in_vref));
 359 }
 360 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
 361 {
 362         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 363         struct pc87360_data *data = pc87360_update_device(dev);
 364         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 365                        data->in_vref));
 366 }
 367 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
 368 {
 369         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 370         struct pc87360_data *data = pc87360_update_device(dev);
 371         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 372                        data->in_vref));
 373 }
 374 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
 375 {
 376         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 377         struct pc87360_data *data = pc87360_update_device(dev);
 378         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 379 }
 380 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 381         size_t count)
 382 {
 383         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 384         struct i2c_client *client = to_i2c_client(dev);
 385         struct pc87360_data *data = i2c_get_clientdata(client);
 386         long val = simple_strtol(buf, NULL, 10);
 387
 388         down(&data->update_lock);
 389         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 390         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
 391                             data->in_min[attr->index]);
 392         up(&data->update_lock);
 393         return count;
 394 }
 395 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 396         size_t count)
 397 {
 398         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 399         struct i2c_client *client = to_i2c_client(dev);
 400         struct pc87360_data *data = i2c_get_clientdata(client);
 401         long val = simple_strtol(buf, NULL, 10);
 402
 403         down(&data->update_lock);
 404         data->in_max[attr->index] = IN_TO_REG(val,
 405                                data->in_vref);
 406         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
 407                             data->in_max[attr->index]);
 408         up(&data->update_lock);
 409         return count;
 410 }
 411
 412 #define show_and_set_in(offset) \
 413 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
 414         show_in_input, NULL, offset); \
 415 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
 416         show_in_min, set_in_min, offset); \
 417 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
 418         show_in_max, set_in_max, offset); \
 419 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
 420         show_in_status, NULL, offset);
 421 show_and_set_in(0)
 422 show_and_set_in(1)
 423 show_and_set_in(2)
 424 show_and_set_in(3)
 425 show_and_set_in(4)
 426 show_and_set_in(5)
 427 show_and_set_in(6)
 428 show_and_set_in(7)
 429 show_and_set_in(8)
 430 show_and_set_in(9)
 431 show_and_set_in(10)
 432
 433 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
 434 {
 435         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 436         struct pc87360_data *data = pc87360_update_device(dev);
 437         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 438                        data->in_vref));
 439 }
 440 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
 441 {
 442         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 443         struct pc87360_data *data = pc87360_update_device(dev);
 444         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 445                        data->in_vref));
 446 }
 447 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
 448 {
 449         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 450         struct pc87360_data *data = pc87360_update_device(dev);
 451         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 452                        data->in_vref));
 453 }
 454 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 455 {
 456         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 457         struct pc87360_data *data = pc87360_update_device(dev);
 458         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
 459                        data->in_vref));
 460 }
 461 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
 462 {
 463         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 464         struct pc87360_data *data = pc87360_update_device(dev);
 465         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 466 }
 467 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 468         size_t count)
 469 {
 470         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 471         struct i2c_client *client = to_i2c_client(dev);
 472         struct pc87360_data *data = i2c_get_clientdata(client);
 473         long val = simple_strtol(buf, NULL, 10);
 474
 475         down(&data->update_lock);
 476         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 477         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
 478                             data->in_min[attr->index]);
 479         up(&data->update_lock);
 480         return count;
 481 }
 482 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 483         size_t count)
 484 {
 485         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 486         struct i2c_client *client = to_i2c_client(dev);
 487         struct pc87360_data *data = i2c_get_clientdata(client);
 488         long val = simple_strtol(buf, NULL, 10);
 489
 490         down(&data->update_lock);
 491         data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
 492         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
 493                             data->in_max[attr->index]);
 494         up(&data->update_lock);
 495         return count;
 496 }
 497 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 498         size_t count)
 499 {
 500         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 501         struct i2c_client *client = to_i2c_client(dev);
 502         struct pc87360_data *data = i2c_get_clientdata(client);
 503         long val = simple_strtol(buf, NULL, 10);
 504
 505         down(&data->update_lock);
 506         data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
 507         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
 508                             data->in_crit[attr->index-11]);
 509         up(&data->update_lock);
 510         return count;
 511 }
 512
 513 #define show_and_set_therm(offset) \
 514 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 515         show_therm_input, NULL, 11+offset-4); \
 516 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 517         show_therm_min, set_therm_min, 11+offset-4); \
 518 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 519         show_therm_max, set_therm_max, 11+offset-4); \
 520 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 521         show_therm_crit, set_therm_crit, 11+offset-4); \
 522 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 523         show_therm_status, NULL, 11+offset-4);
 524 show_and_set_therm(4)
 525 show_and_set_therm(5)
 526 show_and_set_therm(6)
 527
 528 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
 529 {
 530         struct pc87360_data *data = pc87360_update_device(dev);
 531         return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
 532 }
 533 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 534
 535 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
 536 {
 537         struct pc87360_data *data = pc87360_update_device(dev);
 538         return sprintf(buf, "%u\n", data->vrm);
 539 }
 540 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 541 {
 542         struct i2c_client *client = to_i2c_client(dev);
 543         struct pc87360_data *data = i2c_get_clientdata(client);
 544         data->vrm = simple_strtoul(buf, NULL, 10);
 545         return count;
 546 }
 547 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
 548
 549 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 550 {
 551         struct pc87360_data *data = pc87360_update_device(dev);
 552         return sprintf(buf, "%u\n", data->in_alarms);
 553 }
 554 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
 555
 556 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
 557 {
 558         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 559         struct pc87360_data *data = pc87360_update_device(dev);
 560         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 561 }
 562 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
 563 {
 564         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 565         struct pc87360_data *data = pc87360_update_device(dev);
 566         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
 567 }
 568 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
 569 {
 570         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 571         struct pc87360_data *data = pc87360_update_device(dev);
 572         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
 573 }
 574 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 575 {
 576         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 577         struct pc87360_data *data = pc87360_update_device(dev);
 578         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
 579 }
 580 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
 581 {
 582         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 583         struct pc87360_data *data = pc87360_update_device(dev);
 584         return sprintf(buf, "%d\n", data->temp_status[attr->index]);
 585 }
 586 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 587         size_t count)
 588 {
 589         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 590         struct i2c_client *client = to_i2c_client(dev);
 591         struct pc87360_data *data = i2c_get_clientdata(client);
 592         long val = simple_strtol(buf, NULL, 10);
 593
 594         down(&data->update_lock);
 595         data->temp_min[attr->index] = TEMP_TO_REG(val);
 596         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
 597                             data->temp_min[attr->index]);
 598         up(&data->update_lock);
 599         return count;
 600 }
 601 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 602         size_t count)
 603 {
 604         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 605         struct i2c_client *client = to_i2c_client(dev);
 606         struct pc87360_data *data = i2c_get_clientdata(client);
 607         long val = simple_strtol(buf, NULL, 10);
 608
 609         down(&data->update_lock);
 610         data->temp_max[attr->index] = TEMP_TO_REG(val);
 611         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
 612                             data->temp_max[attr->index]);
 613         up(&data->update_lock);
 614         return count;
 615 }
 616 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 617         size_t count)
 618 {
 619         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 620         struct i2c_client *client = to_i2c_client(dev);
 621         struct pc87360_data *data = i2c_get_clientdata(client);
 622         long val = simple_strtol(buf, NULL, 10);
 623
 624         down(&data->update_lock);
 625         data->temp_crit[attr->index] = TEMP_TO_REG(val);
 626         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
 627                             data->temp_crit[attr->index]);
 628         up(&data->update_lock);
 629         return count;
 630 }
 631
 632 #define show_and_set_temp(offset) \
 633 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 634         show_temp_input, NULL, offset-1); \
 635 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 636         show_temp_min, set_temp_min, offset-1); \
 637 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 638         show_temp_max, set_temp_max, offset-1); \
 639 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 640         show_temp_crit, set_temp_crit, offset-1); \
 641 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 642         show_temp_status, NULL, offset-1);
 643 show_and_set_temp(1)
 644 show_and_set_temp(2)
 645 show_and_set_temp(3)
 646
 647 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 648 {
 649         struct pc87360_data *data = pc87360_update_device(dev);
 650         return sprintf(buf, "%u\n", data->temp_alarms);
 651 }
 652 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
 653
 654 /*
 655  * Device detection, registration and update
 656  */
 657
 658 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
 659 {
 660         u16 val;
 661         int i;
 662         int nrdev; /* logical device count */
 663
 664         /* No superio_enter */
 665
 666         /* Identify device */
 667         val = superio_inb(sioaddr, DEVID);
 668         switch (val) {
 669         case 0xE1: /* PC87360 */
 670         case 0xE8: /* PC87363 */
 671         case 0xE4: /* PC87364 */
 672                 nrdev = 1;
 673                 break;
 674         case 0xE5: /* PC87365 */
 675         case 0xE9: /* PC87366 */
 676                 nrdev = 3;
 677                 break;
 678         default:
 679                 superio_exit(sioaddr);
 680                 return -ENODEV;
 681         }
 682         /* Remember the device id */
 683         *devid = val;
 684
 685         for (i = 0; i < nrdev; i++) {
 686                 /* select logical device */
 687                 superio_outb(sioaddr, DEV, logdev[i]);
 688
 689                 val = superio_inb(sioaddr, ACT);
 690                 if (!(val & 0x01)) {
 691                         printk(KERN_INFO "pc87360: Device 0x%02x not "
 692                                "activated\n", logdev[i]);
 693                         continue;
 694                 }
 695
 696                 val = (superio_inb(sioaddr, BASE) << 8)
 697                     | superio_inb(sioaddr, BASE + 1);
 698                 if (!val) {
 699                         printk(KERN_INFO "pc87360: Base address not set for "
 700                                "device 0x%02x\n", logdev[i]);
 701                         continue;
 702                 }
 703
 704                 addresses[i] = val;
 705
 706                 if (i==0) { /* Fans */
 707                         confreg[0] = superio_inb(sioaddr, 0xF0);
 708                         confreg[1] = superio_inb(sioaddr, 0xF1);
 709
 710 #ifdef DEBUG
 711                         printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
 712                                "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
 713                                (confreg[0]>>3)&1, (confreg[0]>>4)&1);
 714                         printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
 715                                "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
 716                                (confreg[0]>>6)&1, (confreg[0]>>7)&1);
 717                         printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
 718                                "ctrl=%d inv=%d\n", confreg[1]&1,
 719                                (confreg[1]>>1)&1, (confreg[1]>>2)&1);
 720 #endif
 721                 } else if (i==1) { /* Voltages */
 722                         /* Are we using thermistors? */
 723                         if (*devid == 0xE9) { /* PC87366 */
 724                                 /* These registers are not logical-device
 725                                    specific, just that we won't need them if
 726                                    we don't use the VLM device */
 727                                 confreg[2] = superio_inb(sioaddr, 0x2B);
 728                                 confreg[3] = superio_inb(sioaddr, 0x25);
 729
 730                                 if (confreg[2] & 0x40) {
 731                                         printk(KERN_INFO "pc87360: Using "
 732                                                "thermistors for temperature "
 733                                                "monitoring\n");
 734                                 }
 735                                 if (confreg[3] & 0xE0) {
 736                                         printk(KERN_INFO "pc87360: VID "
 737                                                "inputs routed (mode %u)\n",
 738                                                confreg[3] >> 5);
 739                                 }
 740                         }
 741                 }
 742         }
 743
 744         superio_exit(sioaddr);
 745         return 0;
 746 }
 747
 748 static int pc87360_detect(struct i2c_adapter *adapter)
 749 {
 750         int i;
 751         struct i2c_client *new_client;
 752         struct pc87360_data *data;
 753         int err = 0;
 754         const char *name = "pc87360";
 755         int use_thermistors = 0;
 756
 757         if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
 758                 return -ENOMEM;
 759         memset(data, 0x00, sizeof(struct pc87360_data));
 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.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);