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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         .driver = {
 240                 .owner  = THIS_MODULE,
 241                 .name   = "pc87360",
 242         },
 243         .attach_adapter = pc87360_detect,
 244         .detach_client  = pc87360_detach_client,
 245 };
 246
 247 /*
 248  * Sysfs stuff
 249  */
 250
 251 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
 252 {
 253         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 254         struct pc87360_data *data = pc87360_update_device(dev);
 255         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
 256                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 257 }
 258 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
 259 {
 260         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 261         struct pc87360_data *data = pc87360_update_device(dev);
 262         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
 263                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 264 }
 265 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 266 {
 267         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 268         struct pc87360_data *data = pc87360_update_device(dev);
 269         return sprintf(buf, "%u\n",
 270                        FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 271 }
 272 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
 273 {
 274         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 275         struct pc87360_data *data = pc87360_update_device(dev);
 276         return sprintf(buf, "%u\n",
 277                        FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
 278 }
 279 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 280         size_t count)
 281 {
 282         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 283         struct i2c_client *client = to_i2c_client(dev);
 284         struct pc87360_data *data = i2c_get_clientdata(client);
 285         long fan_min = simple_strtol(buf, NULL, 10);
 286
 287         down(&data->update_lock);
 288         fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 289
 290         /* If it wouldn't fit, change clock divisor */
 291         while (fan_min > 255
 292             && (data->fan_status[attr->index] & 0x60) != 0x60) {
 293                 fan_min >>= 1;
 294                 data->fan[attr->index] >>= 1;
 295                 data->fan_status[attr->index] += 0x20;
 296         }
 297         data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
 298         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
 299                             data->fan_min[attr->index]);
 300
 301         /* Write new divider, preserve alarm bits */
 302         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
 303                             data->fan_status[attr->index] & 0xF9);
 304         up(&data->update_lock);
 305
 306         return count;
 307 }
 308
 309 #define show_and_set_fan(offset) \
 310 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
 311         show_fan_input, NULL, offset-1); \
 312 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
 313         show_fan_min, set_fan_min, offset-1); \
 314 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
 315         show_fan_div, NULL, offset-1); \
 316 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
 317         show_fan_status, NULL, offset-1);
 318 show_and_set_fan(1)
 319 show_and_set_fan(2)
 320 show_and_set_fan(3)
 321
 322 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
 323 {
 324         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 325         struct pc87360_data *data = pc87360_update_device(dev);
 326         return sprintf(buf, "%u\n",
 327                        PWM_FROM_REG(data->pwm[attr->index],
 328                                     FAN_CONFIG_INVERT(data->fan_conf,
 329                                                       attr->index)));
 330 }
 331 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
 332         size_t count)
 333 {
 334         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 335         struct i2c_client *client = to_i2c_client(dev);
 336         struct pc87360_data *data = i2c_get_clientdata(client);
 337         long val = simple_strtol(buf, NULL, 10);
 338
 339         down(&data->update_lock);
 340         data->pwm[attr->index] = PWM_TO_REG(val,
 341                               FAN_CONFIG_INVERT(data->fan_conf, attr->index));
 342         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
 343                             data->pwm[attr->index]);
 344         up(&data->update_lock);
 345         return count;
 346 }
 347
 348 #define show_and_set_pwm(offset) \
 349 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
 350         show_pwm, set_pwm, offset-1);
 351 show_and_set_pwm(1)
 352 show_and_set_pwm(2)
 353 show_and_set_pwm(3)
 354
 355 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
 356 {
 357         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 358         struct pc87360_data *data = pc87360_update_device(dev);
 359         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 360                        data->in_vref));
 361 }
 362 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
 363 {
 364         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 365         struct pc87360_data *data = pc87360_update_device(dev);
 366         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 367                        data->in_vref));
 368 }
 369 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
 370 {
 371         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 372         struct pc87360_data *data = pc87360_update_device(dev);
 373         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 374                        data->in_vref));
 375 }
 376 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
 377 {
 378         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 379         struct pc87360_data *data = pc87360_update_device(dev);
 380         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 381 }
 382 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 383         size_t count)
 384 {
 385         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 386         struct i2c_client *client = to_i2c_client(dev);
 387         struct pc87360_data *data = i2c_get_clientdata(client);
 388         long val = simple_strtol(buf, NULL, 10);
 389
 390         down(&data->update_lock);
 391         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 392         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
 393                             data->in_min[attr->index]);
 394         up(&data->update_lock);
 395         return count;
 396 }
 397 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 398         size_t count)
 399 {
 400         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 401         struct i2c_client *client = to_i2c_client(dev);
 402         struct pc87360_data *data = i2c_get_clientdata(client);
 403         long val = simple_strtol(buf, NULL, 10);
 404
 405         down(&data->update_lock);
 406         data->in_max[attr->index] = IN_TO_REG(val,
 407                                data->in_vref);
 408         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
 409                             data->in_max[attr->index]);
 410         up(&data->update_lock);
 411         return count;
 412 }
 413
 414 #define show_and_set_in(offset) \
 415 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
 416         show_in_input, NULL, offset); \
 417 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
 418         show_in_min, set_in_min, offset); \
 419 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
 420         show_in_max, set_in_max, offset); \
 421 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
 422         show_in_status, NULL, offset);
 423 show_and_set_in(0)
 424 show_and_set_in(1)
 425 show_and_set_in(2)
 426 show_and_set_in(3)
 427 show_and_set_in(4)
 428 show_and_set_in(5)
 429 show_and_set_in(6)
 430 show_and_set_in(7)
 431 show_and_set_in(8)
 432 show_and_set_in(9)
 433 show_and_set_in(10)
 434
 435 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
 436 {
 437         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 438         struct pc87360_data *data = pc87360_update_device(dev);
 439         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 440                        data->in_vref));
 441 }
 442 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
 443 {
 444         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 445         struct pc87360_data *data = pc87360_update_device(dev);
 446         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 447                        data->in_vref));
 448 }
 449 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
 450 {
 451         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 452         struct pc87360_data *data = pc87360_update_device(dev);
 453         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 454                        data->in_vref));
 455 }
 456 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 457 {
 458         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 459         struct pc87360_data *data = pc87360_update_device(dev);
 460         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
 461                        data->in_vref));
 462 }
 463 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
 464 {
 465         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 466         struct pc87360_data *data = pc87360_update_device(dev);
 467         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 468 }
 469 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 470         size_t count)
 471 {
 472         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 473         struct i2c_client *client = to_i2c_client(dev);
 474         struct pc87360_data *data = i2c_get_clientdata(client);
 475         long val = simple_strtol(buf, NULL, 10);
 476
 477         down(&data->update_lock);
 478         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 479         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
 480                             data->in_min[attr->index]);
 481         up(&data->update_lock);
 482         return count;
 483 }
 484 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 485         size_t count)
 486 {
 487         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 488         struct i2c_client *client = to_i2c_client(dev);
 489         struct pc87360_data *data = i2c_get_clientdata(client);
 490         long val = simple_strtol(buf, NULL, 10);
 491
 492         down(&data->update_lock);
 493         data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
 494         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
 495                             data->in_max[attr->index]);
 496         up(&data->update_lock);
 497         return count;
 498 }
 499 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 500         size_t count)
 501 {
 502         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 503         struct i2c_client *client = to_i2c_client(dev);
 504         struct pc87360_data *data = i2c_get_clientdata(client);
 505         long val = simple_strtol(buf, NULL, 10);
 506
 507         down(&data->update_lock);
 508         data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
 509         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
 510                             data->in_crit[attr->index-11]);
 511         up(&data->update_lock);
 512         return count;
 513 }
 514
 515 #define show_and_set_therm(offset) \
 516 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 517         show_therm_input, NULL, 11+offset-4); \
 518 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 519         show_therm_min, set_therm_min, 11+offset-4); \
 520 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 521         show_therm_max, set_therm_max, 11+offset-4); \
 522 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 523         show_therm_crit, set_therm_crit, 11+offset-4); \
 524 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 525         show_therm_status, NULL, 11+offset-4);
 526 show_and_set_therm(4)
 527 show_and_set_therm(5)
 528 show_and_set_therm(6)
 529
 530 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
 531 {
 532         struct pc87360_data *data = pc87360_update_device(dev);
 533         return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
 534 }
 535 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 536
 537 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
 538 {
 539         struct pc87360_data *data = pc87360_update_device(dev);
 540         return sprintf(buf, "%u\n", data->vrm);
 541 }
 542 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 543 {
 544         struct i2c_client *client = to_i2c_client(dev);
 545         struct pc87360_data *data = i2c_get_clientdata(client);
 546         data->vrm = simple_strtoul(buf, NULL, 10);
 547         return count;
 548 }
 549 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
 550
 551 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 552 {
 553         struct pc87360_data *data = pc87360_update_device(dev);
 554         return sprintf(buf, "%u\n", data->in_alarms);
 555 }
 556 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
 557
 558 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
 559 {
 560         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 561         struct pc87360_data *data = pc87360_update_device(dev);
 562         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 563 }
 564 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
 565 {
 566         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 567         struct pc87360_data *data = pc87360_update_device(dev);
 568         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
 569 }
 570 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
 571 {
 572         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 573         struct pc87360_data *data = pc87360_update_device(dev);
 574         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
 575 }
 576 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 577 {
 578         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 579         struct pc87360_data *data = pc87360_update_device(dev);
 580         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
 581 }
 582 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
 583 {
 584         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 585         struct pc87360_data *data = pc87360_update_device(dev);
 586         return sprintf(buf, "%d\n", data->temp_status[attr->index]);
 587 }
 588 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 589         size_t count)
 590 {
 591         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 592         struct i2c_client *client = to_i2c_client(dev);
 593         struct pc87360_data *data = i2c_get_clientdata(client);
 594         long val = simple_strtol(buf, NULL, 10);
 595
 596         down(&data->update_lock);
 597         data->temp_min[attr->index] = TEMP_TO_REG(val);
 598         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
 599                             data->temp_min[attr->index]);
 600         up(&data->update_lock);
 601         return count;
 602 }
 603 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 604         size_t count)
 605 {
 606         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 607         struct i2c_client *client = to_i2c_client(dev);
 608         struct pc87360_data *data = i2c_get_clientdata(client);
 609         long val = simple_strtol(buf, NULL, 10);
 610
 611         down(&data->update_lock);
 612         data->temp_max[attr->index] = TEMP_TO_REG(val);
 613         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
 614                             data->temp_max[attr->index]);
 615         up(&data->update_lock);
 616         return count;
 617 }
 618 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 619         size_t count)
 620 {
 621         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 622         struct i2c_client *client = to_i2c_client(dev);
 623         struct pc87360_data *data = i2c_get_clientdata(client);
 624         long val = simple_strtol(buf, NULL, 10);
 625
 626         down(&data->update_lock);
 627         data->temp_crit[attr->index] = TEMP_TO_REG(val);
 628         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
 629                             data->temp_crit[attr->index]);
 630         up(&data->update_lock);
 631         return count;
 632 }
 633
 634 #define show_and_set_temp(offset) \
 635 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 636         show_temp_input, NULL, offset-1); \
 637 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 638         show_temp_min, set_temp_min, offset-1); \
 639 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 640         show_temp_max, set_temp_max, offset-1); \
 641 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 642         show_temp_crit, set_temp_crit, offset-1); \
 643 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 644         show_temp_status, NULL, offset-1);
 645 show_and_set_temp(1)
 646 show_and_set_temp(2)
 647 show_and_set_temp(3)
 648
 649 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 650 {
 651         struct pc87360_data *data = pc87360_update_device(dev);
 652         return sprintf(buf, "%u\n", data->temp_alarms);
 653 }
 654 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
 655
 656 /*
 657  * Device detection, registration and update
 658  */
 659
 660 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
 661 {
 662         u16 val;
 663         int i;
 664         int nrdev; /* logical device count */
 665
 666         /* No superio_enter */
 667
 668         /* Identify device */
 669         val = superio_inb(sioaddr, DEVID);
 670         switch (val) {
 671         case 0xE1: /* PC87360 */
 672         case 0xE8: /* PC87363 */
 673         case 0xE4: /* PC87364 */
 674                 nrdev = 1;
 675                 break;
 676         case 0xE5: /* PC87365 */
 677         case 0xE9: /* PC87366 */
 678                 nrdev = 3;
 679                 break;
 680         default:
 681                 superio_exit(sioaddr);
 682                 return -ENODEV;
 683         }
 684         /* Remember the device id */
 685         *devid = val;
 686
 687         for (i = 0; i < nrdev; i++) {
 688                 /* select logical device */
 689                 superio_outb(sioaddr, DEV, logdev[i]);
 690
 691                 val = superio_inb(sioaddr, ACT);
 692                 if (!(val & 0x01)) {
 693                         printk(KERN_INFO "pc87360: Device 0x%02x not "
 694                                "activated\n", logdev[i]);
 695                         continue;
 696                 }
 697
 698                 val = (superio_inb(sioaddr, BASE) << 8)
 699                     | superio_inb(sioaddr, BASE + 1);
 700                 if (!val) {
 701                         printk(KERN_INFO "pc87360: Base address not set for "
 702                                "device 0x%02x\n", logdev[i]);
 703                         continue;
 704                 }
 705
 706                 addresses[i] = val;
 707
 708                 if (i==0) { /* Fans */
 709                         confreg[0] = superio_inb(sioaddr, 0xF0);
 710                         confreg[1] = superio_inb(sioaddr, 0xF1);
 711
 712 #ifdef DEBUG
 713                         printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
 714                                "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
 715                                (confreg[0]>>3)&1, (confreg[0]>>4)&1);
 716                         printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
 717                                "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
 718                                (confreg[0]>>6)&1, (confreg[0]>>7)&1);
 719                         printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
 720                                "ctrl=%d inv=%d\n", confreg[1]&1,
 721                                (confreg[1]>>1)&1, (confreg[1]>>2)&1);
 722 #endif
 723                 } else if (i==1) { /* Voltages */
 724                         /* Are we using thermistors? */
 725                         if (*devid == 0xE9) { /* PC87366 */
 726                                 /* These registers are not logical-device
 727                                    specific, just that we won't need them if
 728                                    we don't use the VLM device */
 729                                 confreg[2] = superio_inb(sioaddr, 0x2B);
 730                                 confreg[3] = superio_inb(sioaddr, 0x25);
 731
 732                                 if (confreg[2] & 0x40) {
 733                                         printk(KERN_INFO "pc87360: Using "
 734                                                "thermistors for temperature "
 735                                                "monitoring\n");
 736                                 }
 737                                 if (confreg[3] & 0xE0) {
 738                                         printk(KERN_INFO "pc87360: VID "
 739                                                "inputs routed (mode %u)\n",
 740                                                confreg[3] >> 5);
 741                                 }
 742                         }
 743                 }
 744         }
 745
 746         superio_exit(sioaddr);
 747         return 0;
 748 }
 749
 750 static int pc87360_detect(struct i2c_adapter *adapter)
 751 {
 752         int i;
 753         struct i2c_client *new_client;
 754         struct pc87360_data *data;
 755         int err = 0;
 756         const char *name = "pc87360";
 757         int use_thermistors = 0;
 758
 759         if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
 760                 return -ENOMEM;
 761
 762         new_client = &data->client;
 763         i2c_set_clientdata(new_client, data);
 764         new_client->addr = address;
 765         init_MUTEX(&data->lock);
 766         new_client->adapter = adapter;
 767         new_client->driver = &pc87360_driver;
 768         new_client->flags = 0;
 769
 770         data->fannr = 2;
 771         data->innr = 0;
 772         data->tempnr = 0;
 773
 774         switch (devid) {
 775         case 0xe8:
 776                 name = "pc87363";
 777                 break;
 778         case 0xe4:
 779                 name = "pc87364";
 780                 data->fannr = 3;
 781                 break;
 782         case 0xe5:
 783                 name = "pc87365";
 784                 data->fannr = extra_isa[0] ? 3 : 0;
 785                 data->innr = extra_isa[1] ? 11 : 0;
 786                 data->tempnr = extra_isa[2] ? 2 : 0;
 787                 break;
 788         case 0xe9:
 789                 name = "pc87366";
 790                 data->fannr = extra_isa[0] ? 3 : 0;
 791                 data->innr = extra_isa[1] ? 14 : 0;
 792                 data->tempnr = extra_isa[2] ? 3 : 0;
 793                 break;
 794         }
 795
 796         strcpy(new_client->name, name);
 797         data->valid = 0;
 798         init_MUTEX(&data->update_lock);
 799
 800         for (i = 0; i < 3; i++) {
 801                 if (((data->address[i] = extra_isa[i]))
 802                  && !request_region(extra_isa[i], PC87360_EXTENT,
 803                                     pc87360_driver.driver.name)) {
 804                         dev_err(&new_client->dev, "Region 0x%x-0x%x already "
 805                                 "in use!\n", extra_isa[i],
 806                                 extra_isa[i]+PC87360_EXTENT-1);
 807                         for (i--; i >= 0; i--)
 808                                 release_region(extra_isa[i], PC87360_EXTENT);
 809                         err = -EBUSY;
 810                         goto ERROR1;
 811                 }
 812         }
 813
 814         /* Retrieve the fans configuration from Super-I/O space */
 815         if (data->fannr)
 816                 data->fan_conf = confreg[0] | (confreg[1] << 8);
 817
 818         if ((err = i2c_attach_client(new_client)))
 819                 goto ERROR2;
 820
 821         /* Use the correct reference voltage
 822            Unless both the VLM and the TMS logical devices agree to
 823            use an external Vref, the internal one is used. */
 824         if (data->innr) {
 825                 i = pc87360_read_value(data, LD_IN, NO_BANK,
 826                                        PC87365_REG_IN_CONFIG);
 827                 if (data->tempnr) {
 828                         i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
 829                                                 PC87365_REG_TEMP_CONFIG);
 830                 }
 831                 data->in_vref = (i&0x02) ? 3025 : 2966;
 832                 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
 833                         (i&0x02) ? "external" : "internal");
 834
 835                 data->vid_conf = confreg[3];
 836                 data->vrm = 90;
 837         }
 838
 839         /* Fan clock dividers may be needed before any data is read */
 840         for (i = 0; i < data->fannr; i++) {
 841                 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
 842                         data->fan_status[i] = pc87360_read_value(data,
 843                                               LD_FAN, NO_BANK,
 844                                               PC87360_REG_FAN_STATUS(i));
 845         }
 846
 847         if (init > 0) {
 848                 if (devid == 0xe9 && data->address[1]) /* PC87366 */
 849                         use_thermistors = confreg[2] & 0x40;
 850
 851                 pc87360_init_client(new_client, use_thermistors);
 852         }
 853
 854         /* Register sysfs hooks */
 855         data->class_dev = hwmon_device_register(&new_client->dev);
 856         if (IS_ERR(data->class_dev)) {
 857                 err = PTR_ERR(data->class_dev);
 858                 goto ERROR3;
 859         }
 860
 861         if (data->innr) {
 862                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
 863                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
 864                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
 865                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
 866                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
 867                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
 868                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
 869                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
 870                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
 871                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
 872                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
 873                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
 874                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
 875                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
 876                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
 877                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
 878                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
 879                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
 880                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
 881                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
 882                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
 883                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
 884                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
 885                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
 886                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
 887                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
 888                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
 889                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
 890                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
 891                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
 892                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
 893                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
 894                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
 895                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr);
 896                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr);
 897                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr);
 898                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr);
 899                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr);
 900                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr);
 901                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr);
 902                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr);
 903                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr);
 904                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr);
 905                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr);
 906
 907                 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
 908                 device_create_file(&new_client->dev, &dev_attr_vrm);
 909                 device_create_file(&new_client->dev, &dev_attr_alarms_in);
 910         }
 911
 912         if (data->tempnr) {
 913                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
 914                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
 915                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
 916                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
 917                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
 918                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
 919                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
 920                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
 921                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr);
 922                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr);
 923
 924                 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
 925         }
 926         if (data->tempnr == 3) {
 927                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
 928                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
 929                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
 930                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
 931                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr);
 932         }
 933         if (data->innr == 14) {
 934                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr);
 935                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr);
 936                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr);
 937                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr);
 938                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr);
 939                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr);
 940                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr);
 941                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr);
 942                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr);
 943                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr);
 944                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr);
 945                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr);
 946                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr);
 947                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr);
 948                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr);
 949         }
 950
 951         if (data->fannr) {
 952                 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
 953                         device_create_file(&new_client->dev,
 954                                            &sensor_dev_attr_fan1_input.dev_attr);
 955                         device_create_file(&new_client->dev,
 956                                            &sensor_dev_attr_fan1_min.dev_attr);
 957                         device_create_file(&new_client->dev,
 958                                            &sensor_dev_attr_fan1_div.dev_attr);
 959                         device_create_file(&new_client->dev,
 960                                            &sensor_dev_attr_fan1_status.dev_attr);
 961                 }
 962
 963                 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
 964                         device_create_file(&new_client->dev,
 965                                            &sensor_dev_attr_fan2_input.dev_attr);
 966                         device_create_file(&new_client->dev,
 967                                            &sensor_dev_attr_fan2_min.dev_attr);
 968                         device_create_file(&new_client->dev,
 969                                            &sensor_dev_attr_fan2_div.dev_attr);
 970                         device_create_file(&new_client->dev,
 971                                            &sensor_dev_attr_fan2_status.dev_attr);
 972                 }
 973
 974                 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
 975                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr);
 976                 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
 977                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr);
 978         }
 979         if (data->fannr == 3) {
 980                 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
 981                         device_create_file(&new_client->dev,
 982                                            &sensor_dev_attr_fan3_input.dev_attr);
 983                         device_create_file(&new_client->dev,
 984                                            &sensor_dev_attr_fan3_min.dev_attr);
 985                         device_create_file(&new_client->dev,
 986                                            &sensor_dev_attr_fan3_div.dev_attr);
 987                         device_create_file(&new_client->dev,
 988                                            &sensor_dev_attr_fan3_status.dev_attr);
 989                 }
 990
 991                 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
 992                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr);
 993         }
 994
 995         return 0;
 996
 997 ERROR3:
 998         i2c_detach_client(new_client);
 999 ERROR2:
1000         for (i = 0; i < 3; i++) {
1001                 if (data->address[i]) {
1002                         release_region(data->address[i], PC87360_EXTENT);
1003                 }
1004         }
1005 ERROR1:
1006         kfree(data);
1007         return err;
1008 }
1009
1010 static int pc87360_detach_client(struct i2c_client *client)
1011 {
1012         struct pc87360_data *data = i2c_get_clientdata(client);
1013         int i;
1014
1015         hwmon_device_unregister(data->class_dev);
1016
1017         if ((i = i2c_detach_client(client)))
1018                 return i;
1019
1020         for (i = 0; i < 3; i++) {
1021                 if (data->address[i]) {
1022                         release_region(data->address[i], PC87360_EXTENT);
1023                 }
1024         }
1025         kfree(data);
1026
1027         return 0;
1028 }
1029
1030 /* ldi is the logical device index
1031    bank is for voltages and temperatures only */
1032 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1033                               u8 reg)
1034 {
1035         int res;
1036
1037         down(&(data->lock));
1038         if (bank != NO_BANK)
1039                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1040         res = inb_p(data->address[ldi] + reg);
1041         up(&(data->lock));
1042
1043         return res;
1044 }
1045
1046 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1047                                 u8 reg, u8 value)
1048 {
1049         down(&(data->lock));
1050         if (bank != NO_BANK)
1051                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1052         outb_p(value, data->address[ldi] + reg);
1053         up(&(data->lock));
1054 }
1055
1056 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1057 {
1058         struct pc87360_data *data = i2c_get_clientdata(client);
1059         int i, nr;
1060         const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1061         const u8 init_temp[3] = { 2, 2, 1 };
1062         u8 reg;
1063
1064         if (init >= 2 && data->innr) {
1065                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1066                                          PC87365_REG_IN_CONVRATE);
1067                 dev_info(&client->dev, "VLM conversion set to "
1068                          "1s period, 160us delay\n");
1069                 pc87360_write_value(data, LD_IN, NO_BANK,
1070                                     PC87365_REG_IN_CONVRATE,
1071                                     (reg & 0xC0) | 0x11);
1072         }
1073
1074         nr = data->innr < 11 ? data->innr : 11;
1075         for (i=0; i<nr; i++) {
1076                 if (init >= init_in[i]) {
1077                         /* Forcibly enable voltage channel */
1078                         reg = pc87360_read_value(data, LD_IN, i,
1079                                                  PC87365_REG_IN_STATUS);
1080                         if (!(reg & 0x01)) {
1081                                 dev_dbg(&client->dev, "Forcibly "
1082                                         "enabling in%d\n", i);
1083                                 pc87360_write_value(data, LD_IN, i,
1084                                                     PC87365_REG_IN_STATUS,
1085                                                     (reg & 0x68) | 0x87);
1086                         }
1087                 }
1088         }
1089
1090         /* We can't blindly trust the Super-I/O space configuration bit,
1091            most BIOS won't set it properly */
1092         for (i=11; i<data->innr; i++) {
1093                 reg = pc87360_read_value(data, LD_IN, i,
1094                                          PC87365_REG_TEMP_STATUS);
1095                 use_thermistors = use_thermistors || (reg & 0x01);
1096         }
1097
1098         i = use_thermistors ? 2 : 0;
1099         for (; i<data->tempnr; i++) {
1100                 if (init >= init_temp[i]) {
1101                         /* Forcibly enable temperature channel */
1102                         reg = pc87360_read_value(data, LD_TEMP, i,
1103                                                  PC87365_REG_TEMP_STATUS);
1104                         if (!(reg & 0x01)) {
1105                                 dev_dbg(&client->dev, "Forcibly "
1106                                         "enabling temp%d\n", i+1);
1107                                 pc87360_write_value(data, LD_TEMP, i,
1108                                                     PC87365_REG_TEMP_STATUS,
1109                                                     0xCF);
1110                         }
1111                 }
1112         }
1113
1114         if (use_thermistors) {
1115                 for (i=11; i<data->innr; i++) {
1116                         if (init >= init_in[i]) {
1117                                 /* The pin may already be used by thermal
1118                                    diodes */
1119                                 reg = pc87360_read_value(data, LD_TEMP,
1120                                       (i-11)/2, PC87365_REG_TEMP_STATUS);
1121                                 if (reg & 0x01) {
1122                                         dev_dbg(&client->dev, "Skipping "
1123                                                 "temp%d, pin already in use "
1124                                                 "by temp%d\n", i-7, (i-11)/2);
1125                                         continue;
1126                                 }
1127
1128                                 /* Forcibly enable thermistor channel */
1129                                 reg = pc87360_read_value(data, LD_IN, i,
1130                                                          PC87365_REG_IN_STATUS);
1131                                 if (!(reg & 0x01)) {
1132                                         dev_dbg(&client->dev, "Forcibly "
1133                                                 "enabling temp%d\n", i-7);
1134                                         pc87360_write_value(data, LD_IN, i,
1135                                                 PC87365_REG_TEMP_STATUS,
1136                                                 (reg & 0x60) | 0x8F);
1137                                 }
1138                         }
1139                 }
1140         }
1141
1142         if (data->innr) {
1143                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1144                                          PC87365_REG_IN_CONFIG);
1145                 if (reg & 0x01) {
1146                         dev_dbg(&client->dev, "Forcibly "
1147                                 "enabling monitoring (VLM)\n");
1148                         pc87360_write_value(data, LD_IN, NO_BANK,
1149                                             PC87365_REG_IN_CONFIG,
1150                                             reg & 0xFE);
1151                 }
1152         }
1153
1154         if (data->tempnr) {
1155                 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1156                                          PC87365_REG_TEMP_CONFIG);
1157                 if (reg & 0x01) {
1158                         dev_dbg(&client->dev, "Forcibly enabling "
1159                                 "monitoring (TMS)\n");
1160                         pc87360_write_value(data, LD_TEMP, NO_BANK,
1161                                             PC87365_REG_TEMP_CONFIG,
1162                                             reg & 0xFE);
1163                 }
1164
1165                 if (init >= 2) {
1166                         /* Chip config as documented by National Semi. */
1167                         pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1168                         /* We voluntarily omit the bank here, in case the
1169                            sequence itself matters. It shouldn't be a problem,
1170                            since nobody else is supposed to access the
1171                            device at that point. */
1172                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1173                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1174                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1175                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1176                 }
1177         }
1178 }
1179
1180 static void pc87360_autodiv(struct i2c_client *client, int nr)
1181 {
1182         struct pc87360_data *data = i2c_get_clientdata(client);
1183         u8 old_min = data->fan_min[nr];
1184
1185         /* Increase clock divider if needed and possible */
1186         if ((data->fan_status[nr] & 0x04) /* overflow flag */
1187          || (data->fan[nr] >= 224)) { /* next to overflow */
1188                 if ((data->fan_status[nr] & 0x60) != 0x60) {
1189                         data->fan_status[nr] += 0x20;
1190                         data->fan_min[nr] >>= 1;
1191                         data->fan[nr] >>= 1;
1192                         dev_dbg(&client->dev, "Increasing "
1193                                 "clock divider to %d for fan %d\n",
1194                                 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1195                 }
1196         } else {
1197                 /* Decrease clock divider if possible */
1198                 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1199                  && data->fan[nr] < 85 /* bad accuracy */
1200                  && (data->fan_status[nr] & 0x60) != 0x00) {
1201                         data->fan_status[nr] -= 0x20;
1202                         data->fan_min[nr] <<= 1;
1203                         data->fan[nr] <<= 1;
1204                         dev_dbg(&client->dev, "Decreasing "
1205                                 "clock divider to %d for fan %d\n",
1206                                 FAN_DIV_FROM_REG(data->fan_status[nr]),
1207                                 nr+1);
1208                 }
1209         }
1210
1211         /* Write new fan min if it changed */
1212         if (old_min != data->fan_min[nr]) {
1213                 pc87360_write_value(data, LD_FAN, NO_BANK,
1214                                     PC87360_REG_FAN_MIN(nr),
1215                                     data->fan_min[nr]);
1216         }
1217 }
1218
1219 static struct pc87360_data *pc87360_update_device(struct device *dev)
1220 {
1221         struct i2c_client *client = to_i2c_client(dev);
1222         struct pc87360_data *data = i2c_get_clientdata(client);
1223         u8 i;
1224
1225         down(&data->update_lock);
1226
1227         if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1228                 dev_dbg(&client->dev, "Data update\n");
1229
1230                 /* Fans */
1231                 for (i = 0; i < data->fannr; i++) {
1232                         if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1233                                 data->fan_status[i] =
1234                                         pc87360_read_value(data, LD_FAN,
1235                                         NO_BANK, PC87360_REG_FAN_STATUS(i));
1236                                 data->fan[i] = pc87360_read_value(data, LD_FAN,
1237                                                NO_BANK, PC87360_REG_FAN(i));
1238                                 data->fan_min[i] = pc87360_read_value(data,
1239                                                    LD_FAN, NO_BANK,
1240                                                    PC87360_REG_FAN_MIN(i));
1241                                 /* Change clock divider if needed */
1242                                 pc87360_autodiv(client, i);
1243                                 /* Clear bits and write new divider */
1244                                 pc87360_write_value(data, LD_FAN, NO_BANK,
1245                                                     PC87360_REG_FAN_STATUS(i),
1246                                                     data->fan_status[i]);
1247                         }
1248                         if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1249                                 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1250                                                NO_BANK, PC87360_REG_PWM(i));
1251                 }
1252
1253                 /* Voltages */
1254                 for (i = 0; i < data->innr; i++) {
1255                         data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1256                                              PC87365_REG_IN_STATUS);
1257                         /* Clear bits */
1258                         pc87360_write_value(data, LD_IN, i,
1259                                             PC87365_REG_IN_STATUS,
1260                                             data->in_status[i]);
1261                         if ((data->in_status[i] & 0x81) == 0x81) {
1262                                 data->in[i] = pc87360_read_value(data, LD_IN,
1263                                               i, PC87365_REG_IN);
1264                         }
1265                         if (data->in_status[i] & 0x01) {
1266                                 data->in_min[i] = pc87360_read_value(data,
1267                                                   LD_IN, i,
1268                                                   PC87365_REG_IN_MIN);
1269                                 data->in_max[i] = pc87360_read_value(data,
1270                                                   LD_IN, i,
1271                                                   PC87365_REG_IN_MAX);
1272                                 if (i >= 11)
1273                                         data->in_crit[i-11] =
1274                                                 pc87360_read_value(data, LD_IN,
1275                                                 i, PC87365_REG_TEMP_CRIT);
1276                         }
1277                 }
1278                 if (data->innr) {
1279                         data->in_alarms = pc87360_read_value(data, LD_IN,
1280                                           NO_BANK, PC87365_REG_IN_ALARMS1)
1281                                         | ((pc87360_read_value(data, LD_IN,
1282                                             NO_BANK, PC87365_REG_IN_ALARMS2)
1283                                             & 0x07) << 8);
1284                         data->vid = (data->vid_conf & 0xE0) ?
1285                                     pc87360_read_value(data, LD_IN,
1286                                     NO_BANK, PC87365_REG_VID) : 0x1F;
1287                 }
1288
1289                 /* Temperatures */
1290                 for (i = 0; i < data->tempnr; i++) {
1291                         data->temp_status[i] = pc87360_read_value(data,
1292                                                LD_TEMP, i,
1293                                                PC87365_REG_TEMP_STATUS);
1294                         /* Clear bits */
1295                         pc87360_write_value(data, LD_TEMP, i,
1296                                             PC87365_REG_TEMP_STATUS,
1297                                             data->temp_status[i]);
1298                         if ((data->temp_status[i] & 0x81) == 0x81) {
1299                                 data->temp[i] = pc87360_read_value(data,
1300                                                 LD_TEMP, i,
1301                                                 PC87365_REG_TEMP);
1302                         }
1303                         if (data->temp_status[i] & 0x01) {
1304                                 data->temp_min[i] = pc87360_read_value(data,
1305                                                     LD_TEMP, i,
1306                                                     PC87365_REG_TEMP_MIN);
1307                                 data->temp_max[i] = pc87360_read_value(data,
1308                                                     LD_TEMP, i,
1309                                                     PC87365_REG_TEMP_MAX);
1310                                 data->temp_crit[i] = pc87360_read_value(data,
1311                                                      LD_TEMP, i,
1312                                                      PC87365_REG_TEMP_CRIT);
1313                         }
1314                 }
1315                 if (data->tempnr) {
1316                         data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1317                                             NO_BANK, PC87365_REG_TEMP_ALARMS)
1318                                             & 0x3F;
1319                 }
1320
1321                 data->last_updated = jiffies;
1322                 data->valid = 1;
1323         }
1324
1325         up(&data->update_lock);
1326
1327         return data;
1328 }
1329
1330 static int __init pc87360_init(void)
1331 {
1332         int i;
1333
1334         if (pc87360_find(0x2e, &devid, extra_isa)
1335          && pc87360_find(0x4e, &devid, extra_isa)) {
1336                 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1337                        "module not inserted.\n");
1338                 return -ENODEV;
1339         }
1340
1341         /* Arbitrarily pick one of the addresses */
1342         for (i = 0; i < 3; i++) {
1343                 if (extra_isa[i] != 0x0000) {
1344                         address = extra_isa[i];
1345                         break;
1346                 }
1347         }
1348
1349         if (address == 0x0000) {
1350                 printk(KERN_WARNING "pc87360: No active logical device, "
1351                        "module not inserted.\n");
1352                 return -ENODEV;
1353         }
1354
1355         return i2c_isa_add_driver(&pc87360_driver);
1356 }
1357
1358 static void __exit pc87360_exit(void)
1359 {
1360         i2c_isa_del_driver(&pc87360_driver);
1361 }
1362
1363
1364 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1365 MODULE_DESCRIPTION("PC8736x hardware monitor");
1366 MODULE_LICENSE("GPL");
1367
1368 module_init(pc87360_init);
1369 module_exit(pc87360_exit);