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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 _set_fan_min(struct device *dev, const char *buf,
 250         size_t count, int nr)
 251 {
 252         struct i2c_client *client = to_i2c_client(dev);
 253         struct pc87360_data *data = i2c_get_clientdata(client);
 254         long fan_min = simple_strtol(buf, NULL, 10);
 255
 256         down(&data->update_lock);
 257         fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[nr]));
 258
 259         /* If it wouldn't fit, change clock divisor */
 260         while (fan_min > 255
 261             && (data->fan_status[nr] & 0x60) != 0x60) {
 262                 fan_min >>= 1;
 263                 data->fan[nr] >>= 1;
 264                 data->fan_status[nr] += 0x20;
 265         }
 266         data->fan_min[nr] = fan_min > 255 ? 255 : fan_min;
 267         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr),
 268                             data->fan_min[nr]);
 269
 270         /* Write new divider, preserve alarm bits */
 271         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(nr),
 272                             data->fan_status[nr] & 0xF9);
 273         up(&data->update_lock);
 274
 275         return count;
 276 }
 277
 278 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
 279 {
 280         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 281         struct pc87360_data *data = pc87360_update_device(dev);
 282         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
 283                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 284 }
 285 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
 286 {
 287         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 288         struct pc87360_data *data = pc87360_update_device(dev);
 289         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
 290                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 291 }
 292 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 293 {
 294         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 295         struct pc87360_data *data = pc87360_update_device(dev);
 296         return sprintf(buf, "%u\n",
 297                        FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 298 }
 299 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
 300 {
 301         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 302         struct pc87360_data *data = pc87360_update_device(dev);
 303         return sprintf(buf, "%u\n",
 304                        FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
 305 }
 306 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 307         size_t count)
 308 {
 309         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 310         return _set_fan_min(dev, buf, count, attr->index);
 311 }
 312
 313 #define show_and_set_fan(offset) \
 314 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
 315         show_fan_input, NULL, offset-1); \
 316 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
 317         show_fan_min, set_fan_min, offset-1); \
 318 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
 319         show_fan_div, NULL, offset-1); \
 320 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
 321         show_fan_status, NULL, offset-1);
 322 show_and_set_fan(1)
 323 show_and_set_fan(2)
 324 show_and_set_fan(3)
 325
 326 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
 327 {
 328         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 329         struct pc87360_data *data = pc87360_update_device(dev);
 330         return sprintf(buf, "%u\n",
 331                        PWM_FROM_REG(data->pwm[attr->index],
 332                                     FAN_CONFIG_INVERT(data->fan_conf,
 333                                                       attr->index)));
 334 }
 335 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
 336         size_t count)
 337 {
 338         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 339         struct i2c_client *client = to_i2c_client(dev);
 340         struct pc87360_data *data = i2c_get_clientdata(client);
 341         long val = simple_strtol(buf, NULL, 10);
 342
 343         down(&data->update_lock);
 344         data->pwm[attr->index] = PWM_TO_REG(val,
 345                               FAN_CONFIG_INVERT(data->fan_conf, attr->index));
 346         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
 347                             data->pwm[attr->index]);
 348         up(&data->update_lock);
 349         return count;
 350 }
 351
 352 #define show_and_set_pwm(offset) \
 353 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
 354         show_pwm, set_pwm, offset-1);
 355 show_and_set_pwm(1)
 356 show_and_set_pwm(2)
 357 show_and_set_pwm(3)
 358
 359 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
 360 {
 361         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 362         struct pc87360_data *data = pc87360_update_device(dev);
 363         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 364                        data->in_vref));
 365 }
 366 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
 367 {
 368         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 369         struct pc87360_data *data = pc87360_update_device(dev);
 370         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 371                        data->in_vref));
 372 }
 373 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
 374 {
 375         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 376         struct pc87360_data *data = pc87360_update_device(dev);
 377         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 378                        data->in_vref));
 379 }
 380 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
 381 {
 382         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 383         struct pc87360_data *data = pc87360_update_device(dev);
 384         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 385 }
 386 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 387         size_t count)
 388 {
 389         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 390         struct i2c_client *client = to_i2c_client(dev);
 391         struct pc87360_data *data = i2c_get_clientdata(client);
 392         long val = simple_strtol(buf, NULL, 10);
 393
 394         down(&data->update_lock);
 395         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 396         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
 397                             data->in_min[attr->index]);
 398         up(&data->update_lock);
 399         return count;
 400 }
 401 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 402         size_t count)
 403 {
 404         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 405         struct i2c_client *client = to_i2c_client(dev);
 406         struct pc87360_data *data = i2c_get_clientdata(client);
 407         long val = simple_strtol(buf, NULL, 10);
 408
 409         down(&data->update_lock);
 410         data->in_max[attr->index] = IN_TO_REG(val,
 411                                data->in_vref);
 412         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
 413                             data->in_max[attr->index]);
 414         up(&data->update_lock);
 415         return count;
 416 }
 417
 418 #define show_and_set_in(offset) \
 419 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
 420         show_in_input, NULL, offset); \
 421 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
 422         show_in_min, set_in_min, offset); \
 423 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
 424         show_in_max, set_in_max, offset); \
 425 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
 426         show_in_status, NULL, offset);
 427 show_and_set_in(0)
 428 show_and_set_in(1)
 429 show_and_set_in(2)
 430 show_and_set_in(3)
 431 show_and_set_in(4)
 432 show_and_set_in(5)
 433 show_and_set_in(6)
 434 show_and_set_in(7)
 435 show_and_set_in(8)
 436 show_and_set_in(9)
 437 show_and_set_in(10)
 438
 439 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
 440 {
 441         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 442         struct pc87360_data *data = pc87360_update_device(dev);
 443         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 444                        data->in_vref));
 445 }
 446 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
 447 {
 448         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 449         struct pc87360_data *data = pc87360_update_device(dev);
 450         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 451                        data->in_vref));
 452 }
 453 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
 454 {
 455         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 456         struct pc87360_data *data = pc87360_update_device(dev);
 457         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 458                        data->in_vref));
 459 }
 460 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 461 {
 462         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 463         struct pc87360_data *data = pc87360_update_device(dev);
 464         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
 465                        data->in_vref));
 466 }
 467 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
 468 {
 469         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 470         struct pc87360_data *data = pc87360_update_device(dev);
 471         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 472 }
 473 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 474         size_t count)
 475 {
 476         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 477         struct i2c_client *client = to_i2c_client(dev);
 478         struct pc87360_data *data = i2c_get_clientdata(client);
 479         long val = simple_strtol(buf, NULL, 10);
 480
 481         down(&data->update_lock);
 482         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 483         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
 484                             data->in_min[attr->index]);
 485         up(&data->update_lock);
 486         return count;
 487 }
 488 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 489         size_t count)
 490 {
 491         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 492         struct i2c_client *client = to_i2c_client(dev);
 493         struct pc87360_data *data = i2c_get_clientdata(client);
 494         long val = simple_strtol(buf, NULL, 10);
 495
 496         down(&data->update_lock);
 497         data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
 498         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
 499                             data->in_max[attr->index]);
 500         up(&data->update_lock);
 501         return count;
 502 }
 503 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 504         size_t count)
 505 {
 506         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 507         struct i2c_client *client = to_i2c_client(dev);
 508         struct pc87360_data *data = i2c_get_clientdata(client);
 509         long val = simple_strtol(buf, NULL, 10);
 510
 511         down(&data->update_lock);
 512         data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
 513         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
 514                             data->in_crit[attr->index-11]);
 515         up(&data->update_lock);
 516         return count;
 517 }
 518
 519 #define show_and_set_therm(offset) \
 520 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 521         show_therm_input, NULL, 11+offset-4); \
 522 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 523         show_therm_min, set_therm_min, 11+offset-4); \
 524 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 525         show_therm_max, set_therm_max, 11+offset-4); \
 526 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 527         show_therm_crit, set_therm_crit, 11+offset-4); \
 528 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 529         show_therm_status, NULL, 11+offset-4);
 530 show_and_set_therm(4)
 531 show_and_set_therm(5)
 532 show_and_set_therm(6)
 533
 534 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
 535 {
 536         struct pc87360_data *data = pc87360_update_device(dev);
 537         return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
 538 }
 539 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 540
 541 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
 542 {
 543         struct pc87360_data *data = pc87360_update_device(dev);
 544         return sprintf(buf, "%u\n", data->vrm);
 545 }
 546 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 547 {
 548         struct i2c_client *client = to_i2c_client(dev);
 549         struct pc87360_data *data = i2c_get_clientdata(client);
 550         data->vrm = simple_strtoul(buf, NULL, 10);
 551         return count;
 552 }
 553 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
 554
 555 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 556 {
 557         struct pc87360_data *data = pc87360_update_device(dev);
 558         return sprintf(buf, "%u\n", data->in_alarms);
 559 }
 560 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
 561
 562 static ssize_t show_temp_input(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[attr->index]));
 567 }
 568 static ssize_t show_temp_min(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_min[attr->index]));
 573 }
 574 static ssize_t show_temp_max(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_max[attr->index]));
 579 }
 580 static ssize_t show_temp_crit(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", TEMP_FROM_REG(data->temp_crit[attr->index]));
 585 }
 586 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
 587 {
 588         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 589         struct pc87360_data *data = pc87360_update_device(dev);
 590         return sprintf(buf, "%d\n", data->temp_status[attr->index]);
 591 }
 592 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 593         size_t count)
 594 {
 595         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 596         struct i2c_client *client = to_i2c_client(dev);
 597         struct pc87360_data *data = i2c_get_clientdata(client);
 598         long val = simple_strtol(buf, NULL, 10);
 599
 600         down(&data->update_lock);
 601         data->temp_min[attr->index] = TEMP_TO_REG(val);
 602         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
 603                             data->temp_min[attr->index]);
 604         up(&data->update_lock);
 605         return count;
 606 }
 607 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 608         size_t count)
 609 {
 610         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 611         struct i2c_client *client = to_i2c_client(dev);
 612         struct pc87360_data *data = i2c_get_clientdata(client);
 613         long val = simple_strtol(buf, NULL, 10);
 614
 615         down(&data->update_lock);
 616         data->temp_max[attr->index] = TEMP_TO_REG(val);
 617         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
 618                             data->temp_max[attr->index]);
 619         up(&data->update_lock);
 620         return count;
 621 }
 622 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 623         size_t count)
 624 {
 625         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 626         struct i2c_client *client = to_i2c_client(dev);
 627         struct pc87360_data *data = i2c_get_clientdata(client);
 628         long val = simple_strtol(buf, NULL, 10);
 629
 630         down(&data->update_lock);
 631         data->temp_crit[attr->index] = TEMP_TO_REG(val);
 632         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
 633                             data->temp_crit[attr->index]);
 634         up(&data->update_lock);
 635         return count;
 636 }
 637
 638 #define show_and_set_temp(offset) \
 639 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
 640         show_temp_input, NULL, offset-1); \
 641 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
 642         show_temp_min, set_temp_min, offset-1); \
 643 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
 644         show_temp_max, set_temp_max, offset-1); \
 645 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
 646         show_temp_crit, set_temp_crit, offset-1); \
 647 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
 648         show_temp_status, NULL, offset-1);
 649 show_and_set_temp(1)
 650 show_and_set_temp(2)
 651 show_and_set_temp(3)
 652
 653 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 654 {
 655         struct pc87360_data *data = pc87360_update_device(dev);
 656         return sprintf(buf, "%u\n", data->temp_alarms);
 657 }
 658 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
 659
 660 /*
 661  * Device detection, registration and update
 662  */
 663
 664 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
 665 {
 666         u16 val;
 667         int i;
 668         int nrdev; /* logical device count */
 669
 670         /* No superio_enter */
 671
 672         /* Identify device */
 673         val = superio_inb(sioaddr, DEVID);
 674         switch (val) {
 675         case 0xE1: /* PC87360 */
 676         case 0xE8: /* PC87363 */
 677         case 0xE4: /* PC87364 */
 678                 nrdev = 1;
 679                 break;
 680         case 0xE5: /* PC87365 */
 681         case 0xE9: /* PC87366 */
 682                 nrdev = 3;
 683                 break;
 684         default:
 685                 superio_exit(sioaddr);
 686                 return -ENODEV;
 687         }
 688         /* Remember the device id */
 689         *devid = val;
 690
 691         for (i = 0; i < nrdev; i++) {
 692                 /* select logical device */
 693                 superio_outb(sioaddr, DEV, logdev[i]);
 694
 695                 val = superio_inb(sioaddr, ACT);
 696                 if (!(val & 0x01)) {
 697                         printk(KERN_INFO "pc87360: Device 0x%02x not "
 698                                "activated\n", logdev[i]);
 699                         continue;
 700                 }
 701
 702                 val = (superio_inb(sioaddr, BASE) << 8)
 703                     | superio_inb(sioaddr, BASE + 1);
 704                 if (!val) {
 705                         printk(KERN_INFO "pc87360: Base address not set for "
 706                                "device 0x%02x\n", logdev[i]);
 707                         continue;
 708                 }
 709
 710                 addresses[i] = val;
 711
 712                 if (i==0) { /* Fans */
 713                         confreg[0] = superio_inb(sioaddr, 0xF0);
 714                         confreg[1] = superio_inb(sioaddr, 0xF1);
 715
 716 #ifdef DEBUG
 717                         printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
 718                                "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
 719                                (confreg[0]>>3)&1, (confreg[0]>>4)&1);
 720                         printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
 721                                "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
 722                                (confreg[0]>>6)&1, (confreg[0]>>7)&1);
 723                         printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
 724                                "ctrl=%d inv=%d\n", confreg[1]&1,
 725                                (confreg[1]>>1)&1, (confreg[1]>>2)&1);
 726 #endif
 727                 } else if (i==1) { /* Voltages */
 728                         /* Are we using thermistors? */
 729                         if (*devid == 0xE9) { /* PC87366 */
 730                                 /* These registers are not logical-device
 731                                    specific, just that we won't need them if
 732                                    we don't use the VLM device */
 733                                 confreg[2] = superio_inb(sioaddr, 0x2B);
 734                                 confreg[3] = superio_inb(sioaddr, 0x25);
 735
 736                                 if (confreg[2] & 0x40) {
 737                                         printk(KERN_INFO "pc87360: Using "
 738                                                "thermistors for temperature "
 739                                                "monitoring\n");
 740                                 }
 741                                 if (confreg[3] & 0xE0) {
 742                                         printk(KERN_INFO "pc87360: VID "
 743                                                "inputs routed (mode %u)\n",
 744                                                confreg[3] >> 5);
 745                                 }
 746                         }
 747                 }
 748         }
 749
 750         superio_exit(sioaddr);
 751         return 0;
 752 }
 753
 754 static int pc87360_detect(struct i2c_adapter *adapter)
 755 {
 756         int i;
 757         struct i2c_client *new_client;
 758         struct pc87360_data *data;
 759         int err = 0;
 760         const char *name = "pc87360";
 761         int use_thermistors = 0;
 762
 763         if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
 764                 return -ENOMEM;
 765         memset(data, 0x00, sizeof(struct pc87360_data));
 766
 767         new_client = &data->client;
 768         i2c_set_clientdata(new_client, data);
 769         new_client->addr = address;
 770         init_MUTEX(&data->lock);
 771         new_client->adapter = adapter;
 772         new_client->driver = &pc87360_driver;
 773         new_client->flags = 0;
 774
 775         data->fannr = 2;
 776         data->innr = 0;
 777         data->tempnr = 0;
 778
 779         switch (devid) {
 780         case 0xe8:
 781                 name = "pc87363";
 782                 break;
 783         case 0xe4:
 784                 name = "pc87364";
 785                 data->fannr = 3;
 786                 break;
 787         case 0xe5:
 788                 name = "pc87365";
 789                 data->fannr = extra_isa[0] ? 3 : 0;
 790                 data->innr = extra_isa[1] ? 11 : 0;
 791                 data->tempnr = extra_isa[2] ? 2 : 0;
 792                 break;
 793         case 0xe9:
 794                 name = "pc87366";
 795                 data->fannr = extra_isa[0] ? 3 : 0;
 796                 data->innr = extra_isa[1] ? 14 : 0;
 797                 data->tempnr = extra_isa[2] ? 3 : 0;
 798                 break;
 799         }
 800
 801         strcpy(new_client->name, name);
 802         data->valid = 0;
 803         init_MUTEX(&data->update_lock);
 804
 805         for (i = 0; i < 3; i++) {
 806                 if (((data->address[i] = extra_isa[i]))
 807                  && !request_region(extra_isa[i], PC87360_EXTENT,
 808                                     pc87360_driver.name)) {
 809                         dev_err(&new_client->dev, "Region 0x%x-0x%x already "
 810                                 "in use!\n", extra_isa[i],
 811                                 extra_isa[i]+PC87360_EXTENT-1);
 812                         for (i--; i >= 0; i--)
 813                                 release_region(extra_isa[i], PC87360_EXTENT);
 814                         err = -EBUSY;
 815                         goto ERROR1;
 816                 }
 817         }
 818
 819         /* Retrieve the fans configuration from Super-I/O space */
 820         if (data->fannr)
 821                 data->fan_conf = confreg[0] | (confreg[1] << 8);
 822
 823         if ((err = i2c_attach_client(new_client)))
 824                 goto ERROR2;
 825
 826         /* Use the correct reference voltage
 827            Unless both the VLM and the TMS logical devices agree to
 828            use an external Vref, the internal one is used. */
 829         if (data->innr) {
 830                 i = pc87360_read_value(data, LD_IN, NO_BANK,
 831                                        PC87365_REG_IN_CONFIG);
 832                 if (data->tempnr) {
 833                         i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
 834                                                 PC87365_REG_TEMP_CONFIG);
 835                 }
 836                 data->in_vref = (i&0x02) ? 3025 : 2966;
 837                 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
 838                         (i&0x02) ? "external" : "internal");
 839
 840                 data->vid_conf = confreg[3];
 841                 data->vrm = 90;
 842         }
 843
 844         /* Fan clock dividers may be needed before any data is read */
 845         for (i = 0; i < data->fannr; i++) {
 846                 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
 847                         data->fan_status[i] = pc87360_read_value(data,
 848                                               LD_FAN, NO_BANK,
 849                                               PC87360_REG_FAN_STATUS(i));
 850         }
 851
 852         if (init > 0) {
 853                 if (devid == 0xe9 && data->address[1]) /* PC87366 */
 854                         use_thermistors = confreg[2] & 0x40;
 855
 856                 pc87360_init_client(new_client, use_thermistors);
 857         }
 858
 859         /* Register sysfs hooks */
 860         data->class_dev = hwmon_device_register(&new_client->dev);
 861         if (IS_ERR(data->class_dev)) {
 862                 err = PTR_ERR(data->class_dev);
 863                 goto ERROR3;
 864         }
 865
 866         if (data->innr) {
 867                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
 868                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
 869                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
 870                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
 871                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
 872                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
 873                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
 874                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
 875                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
 876                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
 877                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
 878                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
 879                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
 880                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
 881                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
 882                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
 883                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
 884                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
 885                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
 886                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
 887                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
 888                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
 889                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
 890                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
 891                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
 892                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
 893                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
 894                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
 895                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
 896                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
 897                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
 898                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
 899                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
 900                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr);
 901                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr);
 902                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr);
 903                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr);
 904                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr);
 905                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr);
 906                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr);
 907                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr);
 908                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr);
 909                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr);
 910                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr);
 911
 912                 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
 913                 device_create_file(&new_client->dev, &dev_attr_vrm);
 914                 device_create_file(&new_client->dev, &dev_attr_alarms_in);
 915         }
 916
 917         if (data->tempnr) {
 918                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
 919                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
 920                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
 921                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
 922                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
 923                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
 924                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
 925                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
 926                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr);
 927                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr);
 928
 929                 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
 930         }
 931         if (data->tempnr == 3) {
 932                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
 933                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
 934                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
 935                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
 936                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr);
 937         }
 938         if (data->innr == 14) {
 939                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr);
 940                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr);
 941                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr);
 942                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr);
 943                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr);
 944                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr);
 945                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr);
 946                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr);
 947                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr);
 948                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr);
 949                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr);
 950                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr);
 951                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr);
 952                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr);
 953                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr);
 954         }
 955
 956         if (data->fannr) {
 957                 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
 958                         device_create_file(&new_client->dev,
 959                                            &sensor_dev_attr_fan1_input.dev_attr);
 960                         device_create_file(&new_client->dev,
 961                                            &sensor_dev_attr_fan1_min.dev_attr);
 962                         device_create_file(&new_client->dev,
 963                                            &sensor_dev_attr_fan1_div.dev_attr);
 964                         device_create_file(&new_client->dev,
 965                                            &sensor_dev_attr_fan1_status.dev_attr);
 966                 }
 967
 968                 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
 969                         device_create_file(&new_client->dev,
 970                                            &sensor_dev_attr_fan2_input.dev_attr);
 971                         device_create_file(&new_client->dev,
 972                                            &sensor_dev_attr_fan2_min.dev_attr);
 973                         device_create_file(&new_client->dev,
 974                                            &sensor_dev_attr_fan2_div.dev_attr);
 975                         device_create_file(&new_client->dev,
 976                                            &sensor_dev_attr_fan2_status.dev_attr);
 977                 }
 978
 979                 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
 980                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr);
 981                 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
 982                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr);
 983         }
 984         if (data->fannr == 3) {
 985                 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
 986                         device_create_file(&new_client->dev,
 987                                            &sensor_dev_attr_fan3_input.dev_attr);
 988                         device_create_file(&new_client->dev,
 989                                            &sensor_dev_attr_fan3_min.dev_attr);
 990                         device_create_file(&new_client->dev,
 991                                            &sensor_dev_attr_fan3_div.dev_attr);
 992                         device_create_file(&new_client->dev,
 993                                            &sensor_dev_attr_fan3_status.dev_attr);
 994                 }
 995
 996                 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
 997                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr);
 998         }
 999
1000         return 0;
1001
1002 ERROR3:
1003         i2c_detach_client(new_client);
1004 ERROR2:
1005         for (i = 0; i < 3; i++) {
1006                 if (data->address[i]) {
1007                         release_region(data->address[i], PC87360_EXTENT);
1008                 }
1009         }
1010 ERROR1:
1011         kfree(data);
1012         return err;
1013 }
1014
1015 static int pc87360_detach_client(struct i2c_client *client)
1016 {
1017         struct pc87360_data *data = i2c_get_clientdata(client);
1018         int i;
1019
1020         hwmon_device_unregister(data->class_dev);
1021
1022         if ((i = i2c_detach_client(client)))
1023                 return i;
1024
1025         for (i = 0; i < 3; i++) {
1026                 if (data->address[i]) {
1027                         release_region(data->address[i], PC87360_EXTENT);
1028                 }
1029         }
1030         kfree(data);
1031
1032         return 0;
1033 }
1034
1035 /* ldi is the logical device index
1036    bank is for voltages and temperatures only */
1037 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1038                               u8 reg)
1039 {
1040         int res;
1041
1042         down(&(data->lock));
1043         if (bank != NO_BANK)
1044                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1045         res = inb_p(data->address[ldi] + reg);
1046         up(&(data->lock));
1047
1048         return res;
1049 }
1050
1051 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1052                                 u8 reg, u8 value)
1053 {
1054         down(&(data->lock));
1055         if (bank != NO_BANK)
1056                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1057         outb_p(value, data->address[ldi] + reg);
1058         up(&(data->lock));
1059 }
1060
1061 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1062 {
1063         struct pc87360_data *data = i2c_get_clientdata(client);
1064         int i, nr;
1065         const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1066         const u8 init_temp[3] = { 2, 2, 1 };
1067         u8 reg;
1068
1069         if (init >= 2 && data->innr) {
1070                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1071                                          PC87365_REG_IN_CONVRATE);
1072                 dev_info(&client->dev, "VLM conversion set to "
1073                          "1s period, 160us delay\n");
1074                 pc87360_write_value(data, LD_IN, NO_BANK,
1075                                     PC87365_REG_IN_CONVRATE,
1076                                     (reg & 0xC0) | 0x11);
1077         }
1078
1079         nr = data->innr < 11 ? data->innr : 11;
1080         for (i=0; i<nr; i++) {
1081                 if (init >= init_in[i]) {
1082                         /* Forcibly enable voltage channel */
1083                         reg = pc87360_read_value(data, LD_IN, i,
1084                                                  PC87365_REG_IN_STATUS);
1085                         if (!(reg & 0x01)) {
1086                                 dev_dbg(&client->dev, "Forcibly "
1087                                         "enabling in%d\n", i);
1088                                 pc87360_write_value(data, LD_IN, i,
1089                                                     PC87365_REG_IN_STATUS,
1090                                                     (reg & 0x68) | 0x87);
1091                         }
1092                 }
1093         }
1094
1095         /* We can't blindly trust the Super-I/O space configuration bit,
1096            most BIOS won't set it properly */
1097         for (i=11; i<data->innr; i++) {
1098                 reg = pc87360_read_value(data, LD_IN, i,
1099                                          PC87365_REG_TEMP_STATUS);
1100                 use_thermistors = use_thermistors || (reg & 0x01);
1101         }
1102
1103         i = use_thermistors ? 2 : 0;
1104         for (; i<data->tempnr; i++) {
1105                 if (init >= init_temp[i]) {
1106                         /* Forcibly enable temperature channel */
1107                         reg = pc87360_read_value(data, LD_TEMP, i,
1108                                                  PC87365_REG_TEMP_STATUS);
1109                         if (!(reg & 0x01)) {
1110                                 dev_dbg(&client->dev, "Forcibly "
1111                                         "enabling temp%d\n", i+1);
1112                                 pc87360_write_value(data, LD_TEMP, i,
1113                                                     PC87365_REG_TEMP_STATUS,
1114                                                     0xCF);
1115                         }
1116                 }
1117         }
1118
1119         if (use_thermistors) {
1120                 for (i=11; i<data->innr; i++) {
1121                         if (init >= init_in[i]) {
1122                                 /* The pin may already be used by thermal
1123                                    diodes */
1124                                 reg = pc87360_read_value(data, LD_TEMP,
1125                                       (i-11)/2, PC87365_REG_TEMP_STATUS);
1126                                 if (reg & 0x01) {
1127                                         dev_dbg(&client->dev, "Skipping "
1128                                                 "temp%d, pin already in use "
1129                                                 "by temp%d\n", i-7, (i-11)/2);
1130                                         continue;
1131                                 }
1132
1133                                 /* Forcibly enable thermistor channel */
1134                                 reg = pc87360_read_value(data, LD_IN, i,
1135                                                          PC87365_REG_IN_STATUS);
1136                                 if (!(reg & 0x01)) {
1137                                         dev_dbg(&client->dev, "Forcibly "
1138                                                 "enabling temp%d\n", i-7);
1139                                         pc87360_write_value(data, LD_IN, i,
1140                                                 PC87365_REG_TEMP_STATUS,
1141                                                 (reg & 0x60) | 0x8F);
1142                                 }
1143                         }
1144                 }
1145         }
1146
1147         if (data->innr) {
1148                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1149                                          PC87365_REG_IN_CONFIG);
1150                 if (reg & 0x01) {
1151                         dev_dbg(&client->dev, "Forcibly "
1152                                 "enabling monitoring (VLM)\n");
1153                         pc87360_write_value(data, LD_IN, NO_BANK,
1154                                             PC87365_REG_IN_CONFIG,
1155                                             reg & 0xFE);
1156                 }
1157         }
1158
1159         if (data->tempnr) {
1160                 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1161                                          PC87365_REG_TEMP_CONFIG);
1162                 if (reg & 0x01) {
1163                         dev_dbg(&client->dev, "Forcibly enabling "
1164                                 "monitoring (TMS)\n");
1165                         pc87360_write_value(data, LD_TEMP, NO_BANK,
1166                                             PC87365_REG_TEMP_CONFIG,
1167                                             reg & 0xFE);
1168                 }
1169
1170                 if (init >= 2) {
1171                         /* Chip config as documented by National Semi. */
1172                         pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1173                         /* We voluntarily omit the bank here, in case the
1174                            sequence itself matters. It shouldn't be a problem,
1175                            since nobody else is supposed to access the
1176                            device at that point. */
1177                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1178                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1179                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1180                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1181                 }
1182         }
1183 }
1184
1185 static void pc87360_autodiv(struct i2c_client *client, int nr)
1186 {
1187         struct pc87360_data *data = i2c_get_clientdata(client);
1188         u8 old_min = data->fan_min[nr];
1189
1190         /* Increase clock divider if needed and possible */
1191         if ((data->fan_status[nr] & 0x04) /* overflow flag */
1192          || (data->fan[nr] >= 224)) { /* next to overflow */
1193                 if ((data->fan_status[nr] & 0x60) != 0x60) {
1194                         data->fan_status[nr] += 0x20;
1195                         data->fan_min[nr] >>= 1;
1196                         data->fan[nr] >>= 1;
1197                         dev_dbg(&client->dev, "Increasing "
1198                                 "clock divider to %d for fan %d\n",
1199                                 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1200                 }
1201         } else {
1202                 /* Decrease clock divider if possible */
1203                 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1204                  && data->fan[nr] < 85 /* bad accuracy */
1205                  && (data->fan_status[nr] & 0x60) != 0x00) {
1206                         data->fan_status[nr] -= 0x20;
1207                         data->fan_min[nr] <<= 1;
1208                         data->fan[nr] <<= 1;
1209                         dev_dbg(&client->dev, "Decreasing "
1210                                 "clock divider to %d for fan %d\n",
1211                                 FAN_DIV_FROM_REG(data->fan_status[nr]),
1212                                 nr+1);
1213                 }
1214         }
1215
1216         /* Write new fan min if it changed */
1217         if (old_min != data->fan_min[nr]) {
1218                 pc87360_write_value(data, LD_FAN, NO_BANK,
1219                                     PC87360_REG_FAN_MIN(nr),
1220                                     data->fan_min[nr]);
1221         }
1222 }
1223
1224 static struct pc87360_data *pc87360_update_device(struct device *dev)
1225 {
1226         struct i2c_client *client = to_i2c_client(dev);
1227         struct pc87360_data *data = i2c_get_clientdata(client);
1228         u8 i;
1229
1230         down(&data->update_lock);
1231
1232         if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1233                 dev_dbg(&client->dev, "Data update\n");
1234
1235                 /* Fans */
1236                 for (i = 0; i < data->fannr; i++) {
1237                         if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1238                                 data->fan_status[i] =
1239                                         pc87360_read_value(data, LD_FAN,
1240                                         NO_BANK, PC87360_REG_FAN_STATUS(i));
1241                                 data->fan[i] = pc87360_read_value(data, LD_FAN,
1242                                                NO_BANK, PC87360_REG_FAN(i));
1243                                 data->fan_min[i] = pc87360_read_value(data,
1244                                                    LD_FAN, NO_BANK,
1245                                                    PC87360_REG_FAN_MIN(i));
1246                                 /* Change clock divider if needed */
1247                                 pc87360_autodiv(client, i);
1248                                 /* Clear bits and write new divider */
1249                                 pc87360_write_value(data, LD_FAN, NO_BANK,
1250                                                     PC87360_REG_FAN_STATUS(i),
1251                                                     data->fan_status[i]);
1252                         }
1253                         if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1254                                 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1255                                                NO_BANK, PC87360_REG_PWM(i));
1256                 }
1257
1258                 /* Voltages */
1259                 for (i = 0; i < data->innr; i++) {
1260                         data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1261                                              PC87365_REG_IN_STATUS);
1262                         /* Clear bits */
1263                         pc87360_write_value(data, LD_IN, i,
1264                                             PC87365_REG_IN_STATUS,
1265                                             data->in_status[i]);
1266                         if ((data->in_status[i] & 0x81) == 0x81) {
1267                                 data->in[i] = pc87360_read_value(data, LD_IN,
1268                                               i, PC87365_REG_IN);
1269                         }
1270                         if (data->in_status[i] & 0x01) {
1271                                 data->in_min[i] = pc87360_read_value(data,
1272                                                   LD_IN, i,
1273                                                   PC87365_REG_IN_MIN);
1274                                 data->in_max[i] = pc87360_read_value(data,
1275                                                   LD_IN, i,
1276                                                   PC87365_REG_IN_MAX);
1277                                 if (i >= 11)
1278                                         data->in_crit[i-11] =
1279                                                 pc87360_read_value(data, LD_IN,
1280                                                 i, PC87365_REG_TEMP_CRIT);
1281                         }
1282                 }
1283                 if (data->innr) {
1284                         data->in_alarms = pc87360_read_value(data, LD_IN,
1285                                           NO_BANK, PC87365_REG_IN_ALARMS1)
1286                                         | ((pc87360_read_value(data, LD_IN,
1287                                             NO_BANK, PC87365_REG_IN_ALARMS2)
1288                                             & 0x07) << 8);
1289                         data->vid = (data->vid_conf & 0xE0) ?
1290                                     pc87360_read_value(data, LD_IN,
1291                                     NO_BANK, PC87365_REG_VID) : 0x1F;
1292                 }
1293
1294                 /* Temperatures */
1295                 for (i = 0; i < data->tempnr; i++) {
1296                         data->temp_status[i] = pc87360_read_value(data,
1297                                                LD_TEMP, i,
1298                                                PC87365_REG_TEMP_STATUS);
1299                         /* Clear bits */
1300                         pc87360_write_value(data, LD_TEMP, i,
1301                                             PC87365_REG_TEMP_STATUS,
1302                                             data->temp_status[i]);
1303                         if ((data->temp_status[i] & 0x81) == 0x81) {
1304                                 data->temp[i] = pc87360_read_value(data,
1305                                                 LD_TEMP, i,
1306                                                 PC87365_REG_TEMP);
1307                         }
1308                         if (data->temp_status[i] & 0x01) {
1309                                 data->temp_min[i] = pc87360_read_value(data,
1310                                                     LD_TEMP, i,
1311                                                     PC87365_REG_TEMP_MIN);
1312                                 data->temp_max[i] = pc87360_read_value(data,
1313                                                     LD_TEMP, i,
1314                                                     PC87365_REG_TEMP_MAX);
1315                                 data->temp_crit[i] = pc87360_read_value(data,
1316                                                      LD_TEMP, i,
1317                                                      PC87365_REG_TEMP_CRIT);
1318                         }
1319                 }
1320                 if (data->tempnr) {
1321                         data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1322                                             NO_BANK, PC87365_REG_TEMP_ALARMS)
1323                                             & 0x3F;
1324                 }
1325
1326                 data->last_updated = jiffies;
1327                 data->valid = 1;
1328         }
1329
1330         up(&data->update_lock);
1331
1332         return data;
1333 }
1334
1335 static int __init pc87360_init(void)
1336 {
1337         int i;
1338
1339         if (pc87360_find(0x2e, &devid, extra_isa)
1340          && pc87360_find(0x4e, &devid, extra_isa)) {
1341                 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1342                        "module not inserted.\n");
1343                 return -ENODEV;
1344         }
1345
1346         /* Arbitrarily pick one of the addresses */
1347         for (i = 0; i < 3; i++) {
1348                 if (extra_isa[i] != 0x0000) {
1349                         address = extra_isa[i];
1350                         break;
1351                 }
1352         }
1353
1354         if (address == 0x0000) {
1355                 printk(KERN_WARNING "pc87360: No active logical device, "
1356                        "module not inserted.\n");
1357                 return -ENODEV;
1358         }
1359
1360         return i2c_isa_add_driver(&pc87360_driver);
1361 }
1362
1363 static void __exit pc87360_exit(void)
1364 {
1365         i2c_isa_del_driver(&pc87360_driver);
1366 }
1367
1368
1369 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1370 MODULE_DESCRIPTION("PC8736x hardware monitor");
1371 MODULE_LICENSE("GPL");
1372
1373 module_init(pc87360_init);
1374 module_exit(pc87360_exit);