linux/drivers/hwmon/pc87360.c
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   1/*
   2 *  pc87360.c - Part of lm_sensors, Linux kernel modules
   3 *              for hardware monitoring
   4 *  Copyright (C) 2004, 2007 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/platform_device.h>
  41#include <linux/hwmon.h>
  42#include <linux/hwmon-sysfs.h>
  43#include <linux/hwmon-vid.h>
  44#include <linux/err.h>
  45#include <linux/mutex.h>
  46#include <linux/acpi.h>
  47#include <linux/io.h>
  48
  49static u8 devid;
  50static struct platform_device *pdev;
  51static unsigned short extra_isa[3];
  52static u8 confreg[4];
  53
  54static int init = 1;
  55module_param(init, int, 0);
  56MODULE_PARM_DESC(init,
  57 "Chip initialization level:\n"
  58 " 0: None\n"
  59 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
  60 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
  61 " 3: Forcibly enable all voltage and temperature channels, including in9");
  62
  63static unsigned short force_id;
  64module_param(force_id, ushort, 0);
  65MODULE_PARM_DESC(force_id, "Override the detected device ID");
  66
  67/*
  68 * Super-I/O registers and operations
  69 */
  70
  71#define DEV     0x07    /* Register: Logical device select */
  72#define DEVID   0x20    /* Register: Device ID */
  73#define ACT     0x30    /* Register: Device activation */
  74#define BASE    0x60    /* Register: Base address */
  75
  76#define FSCM    0x09    /* Logical device: fans */
  77#define VLM     0x0d    /* Logical device: voltages */
  78#define TMS     0x0e    /* Logical device: temperatures */
  79#define LDNI_MAX 3
  80static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
  81
  82#define LD_FAN          0
  83#define LD_IN           1
  84#define LD_TEMP         2
  85
  86static inline void superio_outb(int sioaddr, int reg, int val)
  87{
  88        outb(reg, sioaddr);
  89        outb(val, sioaddr+1);
  90}
  91
  92static inline int superio_inb(int sioaddr, int reg)
  93{
  94        outb(reg, sioaddr);
  95        return inb(sioaddr+1);
  96}
  97
  98static inline void superio_exit(int sioaddr)
  99{
 100        outb(0x02, sioaddr);
 101        outb(0x02, sioaddr+1);
 102}
 103
 104/*
 105 * Logical devices
 106 */
 107
 108#define PC87360_EXTENT          0x10
 109#define PC87365_REG_BANK        0x09
 110#define NO_BANK                 0xff
 111
 112/*
 113 * Fan registers and conversions
 114 */
 115
 116/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
 117#define PC87360_REG_PRESCALE(nr)        (0x00 + 2 * (nr))
 118#define PC87360_REG_PWM(nr)             (0x01 + 2 * (nr))
 119#define PC87360_REG_FAN_MIN(nr)         (0x06 + 3 * (nr))
 120#define PC87360_REG_FAN(nr)             (0x07 + 3 * (nr))
 121#define PC87360_REG_FAN_STATUS(nr)      (0x08 + 3 * (nr))
 122
 123#define FAN_FROM_REG(val,div)           ((val) == 0 ? 0: \
 124                                         480000 / ((val)*(div)))
 125#define FAN_TO_REG(val,div)             ((val) <= 100 ? 0 : \
 126                                         480000 / ((val)*(div)))
 127#define FAN_DIV_FROM_REG(val)           (1 << ((val >> 5) & 0x03))
 128#define FAN_STATUS_FROM_REG(val)        ((val) & 0x07)
 129
 130#define FAN_CONFIG_MONITOR(val,nr)      (((val) >> (2 + nr * 3)) & 1)
 131#define FAN_CONFIG_CONTROL(val,nr)      (((val) >> (3 + nr * 3)) & 1)
 132#define FAN_CONFIG_INVERT(val,nr)       (((val) >> (4 + nr * 3)) & 1)
 133
 134#define PWM_FROM_REG(val,inv)           ((inv) ? 255 - (val) : (val))
 135static inline u8 PWM_TO_REG(int val, int inv)
 136{
 137        if (inv)
 138                val = 255 - val;
 139        if (val < 0)
 140                return 0;
 141        if (val > 255)
 142                return 255;
 143        return val;
 144}
 145
 146/*
 147 * Voltage registers and conversions
 148 */
 149
 150#define PC87365_REG_IN_CONVRATE         0x07
 151#define PC87365_REG_IN_CONFIG           0x08
 152#define PC87365_REG_IN                  0x0B
 153#define PC87365_REG_IN_MIN              0x0D
 154#define PC87365_REG_IN_MAX              0x0C
 155#define PC87365_REG_IN_STATUS           0x0A
 156#define PC87365_REG_IN_ALARMS1          0x00
 157#define PC87365_REG_IN_ALARMS2          0x01
 158#define PC87365_REG_VID                 0x06
 159
 160#define IN_FROM_REG(val,ref)            (((val) * (ref) + 128) / 256)
 161#define IN_TO_REG(val,ref)              ((val) < 0 ? 0 : \
 162                                         (val)*256 >= (ref)*255 ? 255: \
 163                                         ((val) * 256 + (ref)/2) / (ref))
 164
 165/*
 166 * Temperature registers and conversions
 167 */
 168
 169#define PC87365_REG_TEMP_CONFIG         0x08
 170#define PC87365_REG_TEMP                0x0B
 171#define PC87365_REG_TEMP_MIN            0x0D
 172#define PC87365_REG_TEMP_MAX            0x0C
 173#define PC87365_REG_TEMP_CRIT           0x0E
 174#define PC87365_REG_TEMP_STATUS         0x0A
 175#define PC87365_REG_TEMP_ALARMS         0x00
 176
 177#define TEMP_FROM_REG(val)              ((val) * 1000)
 178#define TEMP_TO_REG(val)                ((val) < -55000 ? -55 : \
 179                                         (val) > 127000 ? 127 : \
 180                                         (val) < 0 ? ((val) - 500) / 1000 : \
 181                                         ((val) + 500) / 1000)
 182
 183/*
 184 * Device data
 185 */
 186
 187struct pc87360_data {
 188        const char *name;
 189        struct device *hwmon_dev;
 190        struct mutex lock;
 191        struct mutex update_lock;
 192        char valid;             /* !=0 if following fields are valid */
 193        unsigned long last_updated;     /* In jiffies */
 194
 195        int address[3];
 196
 197        u8 fannr, innr, tempnr;
 198
 199        u8 fan[3];              /* Register value */
 200        u8 fan_min[3];          /* Register value */
 201        u8 fan_status[3];       /* Register value */
 202        u8 pwm[3];              /* Register value */
 203        u16 fan_conf;           /* Configuration register values, combined */
 204
 205        u16 in_vref;            /* 1 mV/bit */
 206        u8 in[14];              /* Register value */
 207        u8 in_min[14];          /* Register value */
 208        u8 in_max[14];          /* Register value */
 209        u8 in_crit[3];          /* Register value */
 210        u8 in_status[14];       /* Register value */
 211        u16 in_alarms;          /* Register values, combined, masked */
 212        u8 vid_conf;            /* Configuration register value */
 213        u8 vrm;
 214        u8 vid;                 /* Register value */
 215
 216        s8 temp[3];             /* Register value */
 217        s8 temp_min[3];         /* Register value */
 218        s8 temp_max[3];         /* Register value */
 219        s8 temp_crit[3];        /* Register value */
 220        u8 temp_status[3];      /* Register value */
 221        u8 temp_alarms;         /* Register value, masked */
 222};
 223
 224/*
 225 * Functions declaration
 226 */
 227
 228static int pc87360_probe(struct platform_device *pdev);
 229static int __devexit pc87360_remove(struct platform_device *pdev);
 230
 231static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
 232                              u8 reg);
 233static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
 234                                u8 reg, u8 value);
 235static void pc87360_init_device(struct platform_device *pdev,
 236                                int use_thermistors);
 237static struct pc87360_data *pc87360_update_device(struct device *dev);
 238
 239/*
 240 * Driver data
 241 */
 242
 243static struct platform_driver pc87360_driver = {
 244        .driver = {
 245                .owner  = THIS_MODULE,
 246                .name   = "pc87360",
 247        },
 248        .probe          = pc87360_probe,
 249        .remove         = __devexit_p(pc87360_remove),
 250};
 251
 252/*
 253 * Sysfs stuff
 254 */
 255
 256static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
 257{
 258        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 259        struct pc87360_data *data = pc87360_update_device(dev);
 260        return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
 261                       FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 262}
 263static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
 264{
 265        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 266        struct pc87360_data *data = pc87360_update_device(dev);
 267        return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
 268                       FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 269}
 270static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 271{
 272        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 273        struct pc87360_data *data = pc87360_update_device(dev);
 274        return sprintf(buf, "%u\n",
 275                       FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 276}
 277static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
 278{
 279        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 280        struct pc87360_data *data = pc87360_update_device(dev);
 281        return sprintf(buf, "%u\n",
 282                       FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
 283}
 284static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 285        size_t count)
 286{
 287        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 288        struct pc87360_data *data = dev_get_drvdata(dev);
 289        long fan_min = simple_strtol(buf, NULL, 10);
 290
 291        mutex_lock(&data->update_lock);
 292        fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 293
 294        /* If it wouldn't fit, change clock divisor */
 295        while (fan_min > 255
 296            && (data->fan_status[attr->index] & 0x60) != 0x60) {
 297                fan_min >>= 1;
 298                data->fan[attr->index] >>= 1;
 299                data->fan_status[attr->index] += 0x20;
 300        }
 301        data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
 302        pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
 303                            data->fan_min[attr->index]);
 304
 305        /* Write new divider, preserve alarm bits */
 306        pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
 307                            data->fan_status[attr->index] & 0xF9);
 308        mutex_unlock(&data->update_lock);
 309
 310        return count;
 311}
 312
 313static struct sensor_device_attribute fan_input[] = {
 314        SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
 315        SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
 316        SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
 317};
 318static struct sensor_device_attribute fan_status[] = {
 319        SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
 320        SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
 321        SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
 322};
 323static struct sensor_device_attribute fan_div[] = {
 324        SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
 325        SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
 326        SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
 327};
 328static struct sensor_device_attribute fan_min[] = {
 329        SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
 330        SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
 331        SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
 332};
 333
 334#define FAN_UNIT_ATTRS(X)       \
 335        &fan_input[X].dev_attr.attr,    \
 336        &fan_status[X].dev_attr.attr,   \
 337        &fan_div[X].dev_attr.attr,      \
 338        &fan_min[X].dev_attr.attr
 339
 340static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
 341{
 342        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 343        struct pc87360_data *data = pc87360_update_device(dev);
 344        return sprintf(buf, "%u\n",
 345                       PWM_FROM_REG(data->pwm[attr->index],
 346                                    FAN_CONFIG_INVERT(data->fan_conf,
 347                                                      attr->index)));
 348}
 349static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
 350        size_t count)
 351{
 352        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 353        struct pc87360_data *data = dev_get_drvdata(dev);
 354        long val = simple_strtol(buf, NULL, 10);
 355
 356        mutex_lock(&data->update_lock);
 357        data->pwm[attr->index] = PWM_TO_REG(val,
 358                              FAN_CONFIG_INVERT(data->fan_conf, attr->index));
 359        pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
 360                            data->pwm[attr->index]);
 361        mutex_unlock(&data->update_lock);
 362        return count;
 363}
 364
 365static struct sensor_device_attribute pwm[] = {
 366        SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
 367        SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
 368        SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
 369};
 370
 371static struct attribute * pc8736x_fan_attr_array[] = {
 372        FAN_UNIT_ATTRS(0),
 373        FAN_UNIT_ATTRS(1),
 374        FAN_UNIT_ATTRS(2),
 375        &pwm[0].dev_attr.attr,
 376        &pwm[1].dev_attr.attr,
 377        &pwm[2].dev_attr.attr,
 378        NULL
 379};
 380static const struct attribute_group pc8736x_fan_group = {
 381        .attrs = pc8736x_fan_attr_array,
 382};
 383
 384static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
 385{
 386        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 387        struct pc87360_data *data = pc87360_update_device(dev);
 388        return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 389                       data->in_vref));
 390}
 391static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
 392{
 393        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 394        struct pc87360_data *data = pc87360_update_device(dev);
 395        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 396                       data->in_vref));
 397}
 398static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
 399{
 400        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 401        struct pc87360_data *data = pc87360_update_device(dev);
 402        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 403                       data->in_vref));
 404}
 405static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
 406{
 407        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 408        struct pc87360_data *data = pc87360_update_device(dev);
 409        return sprintf(buf, "%u\n", data->in_status[attr->index]);
 410}
 411static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 412        size_t count)
 413{
 414        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 415        struct pc87360_data *data = dev_get_drvdata(dev);
 416        long val = simple_strtol(buf, NULL, 10);
 417
 418        mutex_lock(&data->update_lock);
 419        data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 420        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
 421                            data->in_min[attr->index]);
 422        mutex_unlock(&data->update_lock);
 423        return count;
 424}
 425static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 426        size_t count)
 427{
 428        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 429        struct pc87360_data *data = dev_get_drvdata(dev);
 430        long val = simple_strtol(buf, NULL, 10);
 431
 432        mutex_lock(&data->update_lock);
 433        data->in_max[attr->index] = IN_TO_REG(val,
 434                               data->in_vref);
 435        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
 436                            data->in_max[attr->index]);
 437        mutex_unlock(&data->update_lock);
 438        return count;
 439}
 440
 441static struct sensor_device_attribute in_input[] = {
 442        SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
 443        SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
 444        SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
 445        SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
 446        SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
 447        SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
 448        SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
 449        SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
 450        SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
 451        SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
 452        SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
 453};
 454static struct sensor_device_attribute in_status[] = {
 455        SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
 456        SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
 457        SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
 458        SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
 459        SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
 460        SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
 461        SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
 462        SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
 463        SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
 464        SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
 465        SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
 466};
 467static struct sensor_device_attribute in_min[] = {
 468        SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
 469        SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
 470        SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
 471        SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
 472        SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
 473        SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
 474        SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
 475        SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
 476        SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
 477        SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
 478        SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
 479};
 480static struct sensor_device_attribute in_max[] = {
 481        SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
 482        SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
 483        SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
 484        SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
 485        SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
 486        SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
 487        SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
 488        SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
 489        SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
 490        SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
 491        SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
 492};
 493
 494/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
 495#define CHAN_ALM_MIN    0x02    /* min limit crossed */
 496#define CHAN_ALM_MAX    0x04    /* max limit exceeded */
 497#define TEMP_ALM_CRIT   0x08    /* temp crit exceeded (temp only) */
 498
 499/* show_in_min/max_alarm() reads data from the per-channel status
 500   register (sec 11.5.12), not the vin event status registers (sec
 501   11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
 502
 503static ssize_t show_in_min_alarm(struct device *dev,
 504                        struct device_attribute *devattr, char *buf)
 505{
 506        struct pc87360_data *data = pc87360_update_device(dev);
 507        unsigned nr = to_sensor_dev_attr(devattr)->index;
 508
 509        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
 510}
 511static ssize_t show_in_max_alarm(struct device *dev,
 512                        struct device_attribute *devattr, char *buf)
 513{
 514        struct pc87360_data *data = pc87360_update_device(dev);
 515        unsigned nr = to_sensor_dev_attr(devattr)->index;
 516
 517        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
 518}
 519
 520static struct sensor_device_attribute in_min_alarm[] = {
 521        SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
 522        SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
 523        SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
 524        SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
 525        SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
 526        SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
 527        SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
 528        SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
 529        SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
 530        SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
 531        SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
 532};
 533static struct sensor_device_attribute in_max_alarm[] = {
 534        SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
 535        SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
 536        SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
 537        SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
 538        SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
 539        SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
 540        SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
 541        SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
 542        SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
 543        SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
 544        SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
 545};
 546
 547#define VIN_UNIT_ATTRS(X) \
 548        &in_input[X].dev_attr.attr,     \
 549        &in_status[X].dev_attr.attr,    \
 550        &in_min[X].dev_attr.attr,       \
 551        &in_max[X].dev_attr.attr,       \
 552        &in_min_alarm[X].dev_attr.attr, \
 553        &in_max_alarm[X].dev_attr.attr
 554
 555static ssize_t show_vid(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", vid_from_reg(data->vid, data->vrm));
 559}
 560static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
 561
 562static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
 563{
 564        struct pc87360_data *data = dev_get_drvdata(dev);
 565        return sprintf(buf, "%u\n", data->vrm);
 566}
 567static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 568{
 569        struct pc87360_data *data = dev_get_drvdata(dev);
 570        data->vrm = simple_strtoul(buf, NULL, 10);
 571        return count;
 572}
 573static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
 574
 575static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 576{
 577        struct pc87360_data *data = pc87360_update_device(dev);
 578        return sprintf(buf, "%u\n", data->in_alarms);
 579}
 580static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
 581
 582static struct attribute *pc8736x_vin_attr_array[] = {
 583        VIN_UNIT_ATTRS(0),
 584        VIN_UNIT_ATTRS(1),
 585        VIN_UNIT_ATTRS(2),
 586        VIN_UNIT_ATTRS(3),
 587        VIN_UNIT_ATTRS(4),
 588        VIN_UNIT_ATTRS(5),
 589        VIN_UNIT_ATTRS(6),
 590        VIN_UNIT_ATTRS(7),
 591        VIN_UNIT_ATTRS(8),
 592        VIN_UNIT_ATTRS(9),
 593        VIN_UNIT_ATTRS(10),
 594        &dev_attr_cpu0_vid.attr,
 595        &dev_attr_vrm.attr,
 596        &dev_attr_alarms_in.attr,
 597        NULL
 598};
 599static const struct attribute_group pc8736x_vin_group = {
 600        .attrs = pc8736x_vin_attr_array,
 601};
 602
 603static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
 604{
 605        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 606        struct pc87360_data *data = pc87360_update_device(dev);
 607        return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 608                       data->in_vref));
 609}
 610static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
 611{
 612        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 613        struct pc87360_data *data = pc87360_update_device(dev);
 614        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 615                       data->in_vref));
 616}
 617static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
 618{
 619        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 620        struct pc87360_data *data = pc87360_update_device(dev);
 621        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 622                       data->in_vref));
 623}
 624static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 625{
 626        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 627        struct pc87360_data *data = pc87360_update_device(dev);
 628        return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
 629                       data->in_vref));
 630}
 631static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
 632{
 633        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 634        struct pc87360_data *data = pc87360_update_device(dev);
 635        return sprintf(buf, "%u\n", data->in_status[attr->index]);
 636}
 637static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 638        size_t count)
 639{
 640        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 641        struct pc87360_data *data = dev_get_drvdata(dev);
 642        long val = simple_strtol(buf, NULL, 10);
 643
 644        mutex_lock(&data->update_lock);
 645        data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 646        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
 647                            data->in_min[attr->index]);
 648        mutex_unlock(&data->update_lock);
 649        return count;
 650}
 651static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 652        size_t count)
 653{
 654        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 655        struct pc87360_data *data = dev_get_drvdata(dev);
 656        long val = simple_strtol(buf, NULL, 10);
 657
 658        mutex_lock(&data->update_lock);
 659        data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
 660        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
 661                            data->in_max[attr->index]);
 662        mutex_unlock(&data->update_lock);
 663        return count;
 664}
 665static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 666        size_t count)
 667{
 668        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 669        struct pc87360_data *data = dev_get_drvdata(dev);
 670        long val = simple_strtol(buf, NULL, 10);
 671
 672        mutex_lock(&data->update_lock);
 673        data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
 674        pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
 675                            data->in_crit[attr->index-11]);
 676        mutex_unlock(&data->update_lock);
 677        return count;
 678}
 679
 680/* the +11 term below reflects the fact that VLM units 11,12,13 are
 681   used in the chip to measure voltage across the thermistors
 682*/
 683static struct sensor_device_attribute therm_input[] = {
 684        SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
 685        SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
 686        SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
 687};
 688static struct sensor_device_attribute therm_status[] = {
 689        SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
 690        SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
 691        SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
 692};
 693static struct sensor_device_attribute therm_min[] = {
 694        SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
 695                    show_therm_min, set_therm_min, 0+11),
 696        SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
 697                    show_therm_min, set_therm_min, 1+11),
 698        SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
 699                    show_therm_min, set_therm_min, 2+11),
 700};
 701static struct sensor_device_attribute therm_max[] = {
 702        SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
 703                    show_therm_max, set_therm_max, 0+11),
 704        SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
 705                    show_therm_max, set_therm_max, 1+11),
 706        SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
 707                    show_therm_max, set_therm_max, 2+11),
 708};
 709static struct sensor_device_attribute therm_crit[] = {
 710        SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
 711                    show_therm_crit, set_therm_crit, 0+11),
 712        SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
 713                    show_therm_crit, set_therm_crit, 1+11),
 714        SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
 715                    show_therm_crit, set_therm_crit, 2+11),
 716};
 717
 718/* show_therm_min/max_alarm() reads data from the per-channel voltage
 719   status register (sec 11.5.12) */
 720
 721static ssize_t show_therm_min_alarm(struct device *dev,
 722                                struct device_attribute *devattr, char *buf)
 723{
 724        struct pc87360_data *data = pc87360_update_device(dev);
 725        unsigned nr = to_sensor_dev_attr(devattr)->index;
 726
 727        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
 728}
 729static ssize_t show_therm_max_alarm(struct device *dev,
 730                                struct device_attribute *devattr, char *buf)
 731{
 732        struct pc87360_data *data = pc87360_update_device(dev);
 733        unsigned nr = to_sensor_dev_attr(devattr)->index;
 734
 735        return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
 736}
 737static ssize_t show_therm_crit_alarm(struct device *dev,
 738                                struct device_attribute *devattr, char *buf)
 739{
 740        struct pc87360_data *data = pc87360_update_device(dev);
 741        unsigned nr = to_sensor_dev_attr(devattr)->index;
 742
 743        return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
 744}
 745
 746static struct sensor_device_attribute therm_min_alarm[] = {
 747        SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
 748                    show_therm_min_alarm, NULL, 0+11),
 749        SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
 750                    show_therm_min_alarm, NULL, 1+11),
 751        SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
 752                    show_therm_min_alarm, NULL, 2+11),
 753};
 754static struct sensor_device_attribute therm_max_alarm[] = {
 755        SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
 756                    show_therm_max_alarm, NULL, 0+11),
 757        SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
 758                    show_therm_max_alarm, NULL, 1+11),
 759        SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
 760                    show_therm_max_alarm, NULL, 2+11),
 761};
 762static struct sensor_device_attribute therm_crit_alarm[] = {
 763        SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
 764                    show_therm_crit_alarm, NULL, 0+11),
 765        SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
 766                    show_therm_crit_alarm, NULL, 1+11),
 767        SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
 768                    show_therm_crit_alarm, NULL, 2+11),
 769};
 770
 771#define THERM_UNIT_ATTRS(X) \
 772        &therm_input[X].dev_attr.attr,  \
 773        &therm_status[X].dev_attr.attr, \
 774        &therm_min[X].dev_attr.attr,    \
 775        &therm_max[X].dev_attr.attr,    \
 776        &therm_crit[X].dev_attr.attr,   \
 777        &therm_min_alarm[X].dev_attr.attr, \
 778        &therm_max_alarm[X].dev_attr.attr, \
 779        &therm_crit_alarm[X].dev_attr.attr
 780
 781static struct attribute * pc8736x_therm_attr_array[] = {
 782        THERM_UNIT_ATTRS(0),
 783        THERM_UNIT_ATTRS(1),
 784        THERM_UNIT_ATTRS(2),
 785        NULL
 786};
 787static const struct attribute_group pc8736x_therm_group = {
 788        .attrs = pc8736x_therm_attr_array,
 789};
 790
 791static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
 792{
 793        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 794        struct pc87360_data *data = pc87360_update_device(dev);
 795        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 796}
 797static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
 798{
 799        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 800        struct pc87360_data *data = pc87360_update_device(dev);
 801        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
 802}
 803static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
 804{
 805        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 806        struct pc87360_data *data = pc87360_update_device(dev);
 807        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
 808}
 809static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
 810{
 811        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 812        struct pc87360_data *data = pc87360_update_device(dev);
 813        return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
 814}
 815static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
 816{
 817        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 818        struct pc87360_data *data = pc87360_update_device(dev);
 819        return sprintf(buf, "%d\n", data->temp_status[attr->index]);
 820}
 821static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
 822        size_t count)
 823{
 824        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 825        struct pc87360_data *data = dev_get_drvdata(dev);
 826        long val = simple_strtol(buf, NULL, 10);
 827
 828        mutex_lock(&data->update_lock);
 829        data->temp_min[attr->index] = TEMP_TO_REG(val);
 830        pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
 831                            data->temp_min[attr->index]);
 832        mutex_unlock(&data->update_lock);
 833        return count;
 834}
 835static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
 836        size_t count)
 837{
 838        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 839        struct pc87360_data *data = dev_get_drvdata(dev);
 840        long val = simple_strtol(buf, NULL, 10);
 841
 842        mutex_lock(&data->update_lock);
 843        data->temp_max[attr->index] = TEMP_TO_REG(val);
 844        pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
 845                            data->temp_max[attr->index]);
 846        mutex_unlock(&data->update_lock);
 847        return count;
 848}
 849static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
 850        size_t count)
 851{
 852        struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 853        struct pc87360_data *data = dev_get_drvdata(dev);
 854        long val = simple_strtol(buf, NULL, 10);
 855
 856        mutex_lock(&data->update_lock);
 857        data->temp_crit[attr->index] = TEMP_TO_REG(val);
 858        pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
 859                            data->temp_crit[attr->index]);
 860        mutex_unlock(&data->update_lock);
 861        return count;
 862}
 863
 864static struct sensor_device_attribute temp_input[] = {
 865        SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
 866        SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
 867        SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
 868};
 869static struct sensor_device_attribute temp_status[] = {
 870        SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
 871        SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
 872        SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
 873};
 874static struct sensor_device_attribute temp_min[] = {
 875        SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
 876                    show_temp_min, set_temp_min, 0),
 877        SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
 878                    show_temp_min, set_temp_min, 1),
 879        SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
 880                    show_temp_min, set_temp_min, 2),
 881};
 882static struct sensor_device_attribute temp_max[] = {
 883        SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
 884                    show_temp_max, set_temp_max, 0),
 885        SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
 886                    show_temp_max, set_temp_max, 1),
 887        SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
 888                    show_temp_max, set_temp_max, 2),
 889};
 890static struct sensor_device_attribute temp_crit[] = {
 891        SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
 892                    show_temp_crit, set_temp_crit, 0),
 893        SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
 894                    show_temp_crit, set_temp_crit, 1),
 895        SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
 896                    show_temp_crit, set_temp_crit, 2),
 897};
 898
 899static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 900{
 901        struct pc87360_data *data = pc87360_update_device(dev);
 902        return sprintf(buf, "%u\n", data->temp_alarms);
 903}
 904static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
 905
 906/* show_temp_min/max_alarm() reads data from the per-channel status
 907   register (sec 12.3.7), not the temp event status registers (sec
 908   12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */
 909
 910static ssize_t show_temp_min_alarm(struct device *dev,
 911                        struct device_attribute *devattr, char *buf)
 912{
 913        struct pc87360_data *data = pc87360_update_device(dev);
 914        unsigned nr = to_sensor_dev_attr(devattr)->index;
 915
 916        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
 917}
 918static ssize_t show_temp_max_alarm(struct device *dev,
 919                        struct device_attribute *devattr, char *buf)
 920{
 921        struct pc87360_data *data = pc87360_update_device(dev);
 922        unsigned nr = to_sensor_dev_attr(devattr)->index;
 923
 924        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
 925}
 926static ssize_t show_temp_crit_alarm(struct device *dev,
 927                        struct device_attribute *devattr, char *buf)
 928{
 929        struct pc87360_data *data = pc87360_update_device(dev);
 930        unsigned nr = to_sensor_dev_attr(devattr)->index;
 931
 932        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
 933}
 934
 935static struct sensor_device_attribute temp_min_alarm[] = {
 936        SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
 937        SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
 938        SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
 939};
 940static struct sensor_device_attribute temp_max_alarm[] = {
 941        SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
 942        SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
 943        SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
 944};
 945static struct sensor_device_attribute temp_crit_alarm[] = {
 946        SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
 947        SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
 948        SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
 949};
 950
 951#define TEMP_FAULT      0x40    /* open diode */
 952static ssize_t show_temp_fault(struct device *dev,
 953                        struct device_attribute *devattr, char *buf)
 954{
 955        struct pc87360_data *data = pc87360_update_device(dev);
 956        unsigned nr = to_sensor_dev_attr(devattr)->index;
 957
 958        return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
 959}
 960static struct sensor_device_attribute temp_fault[] = {
 961        SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
 962        SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
 963        SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
 964};
 965
 966#define TEMP_UNIT_ATTRS(X) \
 967        &temp_input[X].dev_attr.attr,   \
 968        &temp_status[X].dev_attr.attr,  \
 969        &temp_min[X].dev_attr.attr,     \
 970        &temp_max[X].dev_attr.attr,     \
 971        &temp_crit[X].dev_attr.attr,    \
 972        &temp_min_alarm[X].dev_attr.attr, \
 973        &temp_max_alarm[X].dev_attr.attr, \
 974        &temp_crit_alarm[X].dev_attr.attr, \
 975        &temp_fault[X].dev_attr.attr
 976
 977static struct attribute * pc8736x_temp_attr_array[] = {
 978        TEMP_UNIT_ATTRS(0),
 979        TEMP_UNIT_ATTRS(1),
 980        TEMP_UNIT_ATTRS(2),
 981        /* include the few miscellaneous atts here */
 982        &dev_attr_alarms_temp.attr,
 983        NULL
 984};
 985static const struct attribute_group pc8736x_temp_group = {
 986        .attrs = pc8736x_temp_attr_array,
 987};
 988
 989static ssize_t show_name(struct device *dev,
 990                        struct device_attribute *devattr, char *buf)
 991{
 992        struct pc87360_data *data = dev_get_drvdata(dev);
 993        return sprintf(buf, "%s\n", data->name);
 994}
 995static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 996
 997/*
 998 * Device detection, registration and update
 999 */
1000
1001static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1002{
1003        u16 val;
1004        int i;
1005        int nrdev; /* logical device count */
1006
1007        /* No superio_enter */
1008
1009        /* Identify device */
1010        val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1011        switch (val) {
1012        case 0xE1: /* PC87360 */
1013        case 0xE8: /* PC87363 */
1014        case 0xE4: /* PC87364 */
1015                nrdev = 1;
1016                break;
1017        case 0xE5: /* PC87365 */
1018        case 0xE9: /* PC87366 */
1019                nrdev = 3;
1020                break;
1021        default:
1022                superio_exit(sioaddr);
1023                return -ENODEV;
1024        }
1025        /* Remember the device id */
1026        *devid = val;
1027
1028        for (i = 0; i < nrdev; i++) {
1029                /* select logical device */
1030                superio_outb(sioaddr, DEV, logdev[i]);
1031
1032                val = superio_inb(sioaddr, ACT);
1033                if (!(val & 0x01)) {
1034                        printk(KERN_INFO "pc87360: Device 0x%02x not "
1035                               "activated\n", logdev[i]);
1036                        continue;
1037                }
1038
1039                val = (superio_inb(sioaddr, BASE) << 8)
1040                    | superio_inb(sioaddr, BASE + 1);
1041                if (!val) {
1042                        printk(KERN_INFO "pc87360: Base address not set for "
1043                               "device 0x%02x\n", logdev[i]);
1044                        continue;
1045                }
1046
1047                addresses[i] = val;
1048
1049                if (i==0) { /* Fans */
1050                        confreg[0] = superio_inb(sioaddr, 0xF0);
1051                        confreg[1] = superio_inb(sioaddr, 0xF1);
1052
1053#ifdef DEBUG
1054                        printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
1055                               "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
1056                               (confreg[0]>>3)&1, (confreg[0]>>4)&1);
1057                        printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
1058                               "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
1059                               (confreg[0]>>6)&1, (confreg[0]>>7)&1);
1060                        printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
1061                               "ctrl=%d inv=%d\n", confreg[1]&1,
1062                               (confreg[1]>>1)&1, (confreg[1]>>2)&1);
1063#endif
1064                } else if (i==1) { /* Voltages */
1065                        /* Are we using thermistors? */
1066                        if (*devid == 0xE9) { /* PC87366 */
1067                                /* These registers are not logical-device
1068                                   specific, just that we won't need them if
1069                                   we don't use the VLM device */
1070                                confreg[2] = superio_inb(sioaddr, 0x2B);
1071                                confreg[3] = superio_inb(sioaddr, 0x25);
1072
1073                                if (confreg[2] & 0x40) {
1074                                        printk(KERN_INFO "pc87360: Using "
1075                                               "thermistors for temperature "
1076                                               "monitoring\n");
1077                                }
1078                                if (confreg[3] & 0xE0) {
1079                                        printk(KERN_INFO "pc87360: VID "
1080                                               "inputs routed (mode %u)\n",
1081                                               confreg[3] >> 5);
1082                                }
1083                        }
1084                }
1085        }
1086
1087        superio_exit(sioaddr);
1088        return 0;
1089}
1090
1091static int __devinit pc87360_probe(struct platform_device *pdev)
1092{
1093        int i;
1094        struct pc87360_data *data;
1095        int err = 0;
1096        const char *name = "pc87360";
1097        int use_thermistors = 0;
1098        struct device *dev = &pdev->dev;
1099
1100        if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1101                return -ENOMEM;
1102
1103        data->fannr = 2;
1104        data->innr = 0;
1105        data->tempnr = 0;
1106
1107        switch (devid) {
1108        case 0xe8:
1109                name = "pc87363";
1110                break;
1111        case 0xe4:
1112                name = "pc87364";
1113                data->fannr = 3;
1114                break;
1115        case 0xe5:
1116                name = "pc87365";
1117                data->fannr = extra_isa[0] ? 3 : 0;
1118                data->innr = extra_isa[1] ? 11 : 0;
1119                data->tempnr = extra_isa[2] ? 2 : 0;
1120                break;
1121        case 0xe9:
1122                name = "pc87366";
1123                data->fannr = extra_isa[0] ? 3 : 0;
1124                data->innr = extra_isa[1] ? 14 : 0;
1125                data->tempnr = extra_isa[2] ? 3 : 0;
1126                break;
1127        }
1128
1129        data->name = name;
1130        data->valid = 0;
1131        mutex_init(&data->lock);
1132        mutex_init(&data->update_lock);
1133        platform_set_drvdata(pdev, data);
1134
1135        for (i = 0; i < LDNI_MAX; i++) {
1136                if (((data->address[i] = extra_isa[i]))
1137                 && !request_region(extra_isa[i], PC87360_EXTENT,
1138                                    pc87360_driver.driver.name)) {
1139                        dev_err(dev, "Region 0x%x-0x%x already "
1140                                "in use!\n", extra_isa[i],
1141                                extra_isa[i]+PC87360_EXTENT-1);
1142                        for (i--; i >= 0; i--)
1143                                release_region(extra_isa[i], PC87360_EXTENT);
1144                        err = -EBUSY;
1145                        goto ERROR1;
1146                }
1147        }
1148
1149        /* Retrieve the fans configuration from Super-I/O space */
1150        if (data->fannr)
1151                data->fan_conf = confreg[0] | (confreg[1] << 8);
1152
1153        /* Use the correct reference voltage
1154           Unless both the VLM and the TMS logical devices agree to
1155           use an external Vref, the internal one is used. */
1156        if (data->innr) {
1157                i = pc87360_read_value(data, LD_IN, NO_BANK,
1158                                       PC87365_REG_IN_CONFIG);
1159                if (data->tempnr) {
1160                        i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1161                                                PC87365_REG_TEMP_CONFIG);
1162                }
1163                data->in_vref = (i&0x02) ? 3025 : 2966;
1164                dev_dbg(dev, "Using %s reference voltage\n",
1165                        (i&0x02) ? "external" : "internal");
1166
1167                data->vid_conf = confreg[3];
1168                data->vrm = vid_which_vrm();
1169        }
1170
1171        /* Fan clock dividers may be needed before any data is read */
1172        for (i = 0; i < data->fannr; i++) {
1173                if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1174                        data->fan_status[i] = pc87360_read_value(data,
1175                                              LD_FAN, NO_BANK,
1176                                              PC87360_REG_FAN_STATUS(i));
1177        }
1178
1179        if (init > 0) {
1180                if (devid == 0xe9 && data->address[1]) /* PC87366 */
1181                        use_thermistors = confreg[2] & 0x40;
1182
1183                pc87360_init_device(pdev, use_thermistors);
1184        }
1185
1186        /* Register all-or-nothing sysfs groups */
1187
1188        if (data->innr &&
1189            (err = sysfs_create_group(&dev->kobj,
1190                                      &pc8736x_vin_group)))
1191                goto ERROR3;
1192
1193        if (data->innr == 14 &&
1194            (err = sysfs_create_group(&dev->kobj,
1195                                      &pc8736x_therm_group)))
1196                goto ERROR3;
1197
1198        /* create device attr-files for varying sysfs groups */
1199
1200        if (data->tempnr) {
1201                for (i = 0; i < data->tempnr; i++) {
1202                        if ((err = device_create_file(dev,
1203                                        &temp_input[i].dev_attr))
1204                            || (err = device_create_file(dev,
1205                                        &temp_min[i].dev_attr))
1206                            || (err = device_create_file(dev,
1207                                        &temp_max[i].dev_attr))
1208                            || (err = device_create_file(dev,
1209                                        &temp_crit[i].dev_attr))
1210                            || (err = device_create_file(dev,
1211                                        &temp_status[i].dev_attr))
1212                            || (err = device_create_file(dev,
1213                                        &temp_min_alarm[i].dev_attr))
1214                            || (err = device_create_file(dev,
1215                                        &temp_max_alarm[i].dev_attr))
1216                            || (err = device_create_file(dev,
1217                                        &temp_crit_alarm[i].dev_attr))
1218                            || (err = device_create_file(dev,
1219                                        &temp_fault[i].dev_attr)))
1220                                goto ERROR3;
1221                }
1222                if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1223                        goto ERROR3;
1224        }
1225
1226        for (i = 0; i < data->fannr; i++) {
1227                if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1228                    && ((err = device_create_file(dev,
1229                                        &fan_input[i].dev_attr))
1230                        || (err = device_create_file(dev,
1231                                        &fan_min[i].dev_attr))
1232                        || (err = device_create_file(dev,
1233                                        &fan_div[i].dev_attr))
1234                        || (err = device_create_file(dev,
1235                                        &fan_status[i].dev_attr))))
1236                        goto ERROR3;
1237
1238                if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1239                    && (err = device_create_file(dev, &pwm[i].dev_attr)))
1240                        goto ERROR3;
1241        }
1242
1243        if ((err = device_create_file(dev, &dev_attr_name)))
1244                goto ERROR3;
1245
1246        data->hwmon_dev = hwmon_device_register(dev);
1247        if (IS_ERR(data->hwmon_dev)) {
1248                err = PTR_ERR(data->hwmon_dev);
1249                goto ERROR3;
1250        }
1251        return 0;
1252
1253ERROR3:
1254        device_remove_file(dev, &dev_attr_name);
1255        /* can still remove groups whose members were added individually */
1256        sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1257        sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1258        sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1259        sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1260        for (i = 0; i < 3; i++) {
1261                if (data->address[i]) {
1262                        release_region(data->address[i], PC87360_EXTENT);
1263                }
1264        }
1265ERROR1:
1266        kfree(data);
1267        return err;
1268}
1269
1270static int __devexit pc87360_remove(struct platform_device *pdev)
1271{
1272        struct pc87360_data *data = platform_get_drvdata(pdev);
1273        int i;
1274
1275        hwmon_device_unregister(data->hwmon_dev);
1276
1277        device_remove_file(&pdev->dev, &dev_attr_name);
1278        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1279        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1280        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1281        sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1282
1283        for (i = 0; i < 3; i++) {
1284                if (data->address[i]) {
1285                        release_region(data->address[i], PC87360_EXTENT);
1286                }
1287        }
1288        kfree(data);
1289
1290        return 0;
1291}
1292
1293/* ldi is the logical device index
1294   bank is for voltages and temperatures only */
1295static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1296                              u8 reg)
1297{
1298        int res;
1299
1300        mutex_lock(&(data->lock));
1301        if (bank != NO_BANK)
1302                outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1303        res = inb_p(data->address[ldi] + reg);
1304        mutex_unlock(&(data->lock));
1305
1306        return res;
1307}
1308
1309static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1310                                u8 reg, u8 value)
1311{
1312        mutex_lock(&(data->lock));
1313        if (bank != NO_BANK)
1314                outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1315        outb_p(value, data->address[ldi] + reg);
1316        mutex_unlock(&(data->lock));
1317}
1318
1319/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1320#define CHAN_CNVRTD     0x80    /* new data ready */
1321#define CHAN_ENA        0x01    /* enabled channel (temp or vin) */
1322#define CHAN_ALM_ENA    0x10    /* propagate to alarms-reg ?? (chk val!) */
1323#define CHAN_READY      (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1324
1325#define TEMP_OTS_OE     0x20    /* OTS Output Enable */
1326#define VIN_RW1C_MASK   (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN)   /* 0x87 */
1327#define TEMP_RW1C_MASK  (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1328
1329static void pc87360_init_device(struct platform_device *pdev,
1330                                int use_thermistors)
1331{
1332        struct pc87360_data *data = platform_get_drvdata(pdev);
1333        int i, nr;
1334        const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1335        const u8 init_temp[3] = { 2, 2, 1 };
1336        u8 reg;
1337
1338        if (init >= 2 && data->innr) {
1339                reg = pc87360_read_value(data, LD_IN, NO_BANK,
1340                                         PC87365_REG_IN_CONVRATE);
1341                dev_info(&pdev->dev, "VLM conversion set to "
1342                         "1s period, 160us delay\n");
1343                pc87360_write_value(data, LD_IN, NO_BANK,
1344                                    PC87365_REG_IN_CONVRATE,
1345                                    (reg & 0xC0) | 0x11);
1346        }
1347
1348        nr = data->innr < 11 ? data->innr : 11;
1349        for (i = 0; i < nr; i++) {
1350                reg = pc87360_read_value(data, LD_IN, i,
1351                                         PC87365_REG_IN_STATUS);
1352                dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1353                if (init >= init_in[i]) {
1354                        /* Forcibly enable voltage channel */
1355                        if (!(reg & CHAN_ENA)) {
1356                                dev_dbg(&pdev->dev, "Forcibly "
1357                                        "enabling in%d\n", i);
1358                                pc87360_write_value(data, LD_IN, i,
1359                                                    PC87365_REG_IN_STATUS,
1360                                                    (reg & 0x68) | 0x87);
1361                        }
1362                }
1363        }
1364
1365        /* We can't blindly trust the Super-I/O space configuration bit,
1366           most BIOS won't set it properly */
1367        dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1368        for (i = 11; i < data->innr; i++) {
1369                reg = pc87360_read_value(data, LD_IN, i,
1370                                         PC87365_REG_TEMP_STATUS);
1371                use_thermistors = use_thermistors || (reg & CHAN_ENA);
1372                /* thermistors are temp[4-6], measured on vin[11-14] */
1373                dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1374        }
1375        dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1376
1377        i = use_thermistors ? 2 : 0;
1378        for (; i < data->tempnr; i++) {
1379                reg = pc87360_read_value(data, LD_TEMP, i,
1380                                         PC87365_REG_TEMP_STATUS);
1381                dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i+1, reg);
1382                if (init >= init_temp[i]) {
1383                        /* Forcibly enable temperature channel */
1384                        if (!(reg & CHAN_ENA)) {
1385                                dev_dbg(&pdev->dev, "Forcibly "
1386                                        "enabling temp%d\n", i+1);
1387                                pc87360_write_value(data, LD_TEMP, i,
1388                                                    PC87365_REG_TEMP_STATUS,
1389                                                    0xCF);
1390                        }
1391                }
1392        }
1393
1394        if (use_thermistors) {
1395                for (i = 11; i < data->innr; i++) {
1396                        if (init >= init_in[i]) {
1397                                /* The pin may already be used by thermal
1398                                   diodes */
1399                                reg = pc87360_read_value(data, LD_TEMP,
1400                                      (i-11)/2, PC87365_REG_TEMP_STATUS);
1401                                if (reg & CHAN_ENA) {
1402                                        dev_dbg(&pdev->dev, "Skipping "
1403                                                "temp%d, pin already in use "
1404                                                "by temp%d\n", i-7, (i-11)/2);
1405                                        continue;
1406                                }
1407
1408                                /* Forcibly enable thermistor channel */
1409                                reg = pc87360_read_value(data, LD_IN, i,
1410                                                         PC87365_REG_IN_STATUS);
1411                                if (!(reg & CHAN_ENA)) {
1412                                        dev_dbg(&pdev->dev, "Forcibly "
1413                                                "enabling temp%d\n", i-7);
1414                                        pc87360_write_value(data, LD_IN, i,
1415                                                PC87365_REG_TEMP_STATUS,
1416                                                (reg & 0x60) | 0x8F);
1417                                }
1418                        }
1419                }
1420        }
1421
1422        if (data->innr) {
1423                reg = pc87360_read_value(data, LD_IN, NO_BANK,
1424                                         PC87365_REG_IN_CONFIG);
1425                dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1426                if (reg & CHAN_ENA) {
1427                        dev_dbg(&pdev->dev, "Forcibly "
1428                                "enabling monitoring (VLM)\n");
1429                        pc87360_write_value(data, LD_IN, NO_BANK,
1430                                            PC87365_REG_IN_CONFIG,
1431                                            reg & 0xFE);
1432                }
1433        }
1434
1435        if (data->tempnr) {
1436                reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1437                                         PC87365_REG_TEMP_CONFIG);
1438                dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1439                if (reg & CHAN_ENA) {
1440                        dev_dbg(&pdev->dev, "Forcibly enabling "
1441                                "monitoring (TMS)\n");
1442                        pc87360_write_value(data, LD_TEMP, NO_BANK,
1443                                            PC87365_REG_TEMP_CONFIG,
1444                                            reg & 0xFE);
1445                }
1446
1447                if (init >= 2) {
1448                        /* Chip config as documented by National Semi. */
1449                        pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1450                        /* We voluntarily omit the bank here, in case the
1451                           sequence itself matters. It shouldn't be a problem,
1452                           since nobody else is supposed to access the
1453                           device at that point. */
1454                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1455                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1456                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1457                        pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1458                }
1459        }
1460}
1461
1462static void pc87360_autodiv(struct device *dev, int nr)
1463{
1464        struct pc87360_data *data = dev_get_drvdata(dev);
1465        u8 old_min = data->fan_min[nr];
1466
1467        /* Increase clock divider if needed and possible */
1468        if ((data->fan_status[nr] & 0x04) /* overflow flag */
1469         || (data->fan[nr] >= 224)) { /* next to overflow */
1470                if ((data->fan_status[nr] & 0x60) != 0x60) {
1471                        data->fan_status[nr] += 0x20;
1472                        data->fan_min[nr] >>= 1;
1473                        data->fan[nr] >>= 1;
1474                        dev_dbg(dev, "Increasing "
1475                                "clock divider to %d for fan %d\n",
1476                                FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1477                }
1478        } else {
1479                /* Decrease clock divider if possible */
1480                while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1481                 && data->fan[nr] < 85 /* bad accuracy */
1482                 && (data->fan_status[nr] & 0x60) != 0x00) {
1483                        data->fan_status[nr] -= 0x20;
1484                        data->fan_min[nr] <<= 1;
1485                        data->fan[nr] <<= 1;
1486                        dev_dbg(dev, "Decreasing "
1487                                "clock divider to %d for fan %d\n",
1488                                FAN_DIV_FROM_REG(data->fan_status[nr]),
1489                                nr+1);
1490                }
1491        }
1492
1493        /* Write new fan min if it changed */
1494        if (old_min != data->fan_min[nr]) {
1495                pc87360_write_value(data, LD_FAN, NO_BANK,
1496                                    PC87360_REG_FAN_MIN(nr),
1497                                    data->fan_min[nr]);
1498        }
1499}
1500
1501static struct pc87360_data *pc87360_update_device(struct device *dev)
1502{
1503        struct pc87360_data *data = dev_get_drvdata(dev);
1504        u8 i;
1505
1506        mutex_lock(&data->update_lock);
1507
1508        if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1509                dev_dbg(dev, "Data update\n");
1510
1511                /* Fans */
1512                for (i = 0; i < data->fannr; i++) {
1513                        if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1514                                data->fan_status[i] =
1515                                        pc87360_read_value(data, LD_FAN,
1516                                        NO_BANK, PC87360_REG_FAN_STATUS(i));
1517                                data->fan[i] = pc87360_read_value(data, LD_FAN,
1518                                               NO_BANK, PC87360_REG_FAN(i));
1519                                data->fan_min[i] = pc87360_read_value(data,
1520                                                   LD_FAN, NO_BANK,
1521                                                   PC87360_REG_FAN_MIN(i));
1522                                /* Change clock divider if needed */
1523                                pc87360_autodiv(dev, i);
1524                                /* Clear bits and write new divider */
1525                                pc87360_write_value(data, LD_FAN, NO_BANK,
1526                                                    PC87360_REG_FAN_STATUS(i),
1527                                                    data->fan_status[i]);
1528                        }
1529                        if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1530                                data->pwm[i] = pc87360_read_value(data, LD_FAN,
1531                                               NO_BANK, PC87360_REG_PWM(i));
1532                }
1533
1534                /* Voltages */
1535                for (i = 0; i < data->innr; i++) {
1536                        data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1537                                             PC87365_REG_IN_STATUS);
1538                        /* Clear bits */
1539                        pc87360_write_value(data, LD_IN, i,
1540                                            PC87365_REG_IN_STATUS,
1541                                            data->in_status[i]);
1542                        if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1543                                data->in[i] = pc87360_read_value(data, LD_IN,
1544                                              i, PC87365_REG_IN);
1545                        }
1546                        if (data->in_status[i] & CHAN_ENA) {
1547                                data->in_min[i] = pc87360_read_value(data,
1548                                                  LD_IN, i,
1549                                                  PC87365_REG_IN_MIN);
1550                                data->in_max[i] = pc87360_read_value(data,
1551                                                  LD_IN, i,
1552                                                  PC87365_REG_IN_MAX);
1553                                if (i >= 11)
1554                                        data->in_crit[i-11] =
1555                                                pc87360_read_value(data, LD_IN,
1556                                                i, PC87365_REG_TEMP_CRIT);
1557                        }
1558                }
1559                if (data->innr) {
1560                        data->in_alarms = pc87360_read_value(data, LD_IN,
1561                                          NO_BANK, PC87365_REG_IN_ALARMS1)
1562                                        | ((pc87360_read_value(data, LD_IN,
1563                                            NO_BANK, PC87365_REG_IN_ALARMS2)
1564                                            & 0x07) << 8);
1565                        data->vid = (data->vid_conf & 0xE0) ?
1566                                    pc87360_read_value(data, LD_IN,
1567                                    NO_BANK, PC87365_REG_VID) : 0x1F;
1568                }
1569
1570                /* Temperatures */
1571                for (i = 0; i < data->tempnr; i++) {
1572                        data->temp_status[i] = pc87360_read_value(data,
1573                                               LD_TEMP, i,
1574                                               PC87365_REG_TEMP_STATUS);
1575                        /* Clear bits */
1576                        pc87360_write_value(data, LD_TEMP, i,
1577                                            PC87365_REG_TEMP_STATUS,
1578                                            data->temp_status[i]);
1579                        if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1580                                data->temp[i] = pc87360_read_value(data,
1581                                                LD_TEMP, i,
1582                                                PC87365_REG_TEMP);
1583                        }
1584                        if (data->temp_status[i] & CHAN_ENA) {
1585                                data->temp_min[i] = pc87360_read_value(data,
1586                                                    LD_TEMP, i,
1587                                                    PC87365_REG_TEMP_MIN);
1588                                data->temp_max[i] = pc87360_read_value(data,
1589                                                    LD_TEMP, i,
1590                                                    PC87365_REG_TEMP_MAX);
1591                                data->temp_crit[i] = pc87360_read_value(data,
1592                                                     LD_TEMP, i,
1593                                                     PC87365_REG_TEMP_CRIT);
1594                        }
1595                }
1596                if (data->tempnr) {
1597                        data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1598                                            NO_BANK, PC87365_REG_TEMP_ALARMS)
1599                                            & 0x3F;
1600                }
1601
1602                data->last_updated = jiffies;
1603                data->valid = 1;
1604        }
1605
1606        mutex_unlock(&data->update_lock);
1607
1608        return data;
1609}
1610
1611static int __init pc87360_device_add(unsigned short address)
1612{
1613        struct resource res = {
1614                .name   = "pc87360",
1615                .flags  = IORESOURCE_IO,
1616        };
1617        int err, i;
1618
1619        pdev = platform_device_alloc("pc87360", address);
1620        if (!pdev) {
1621                err = -ENOMEM;
1622                printk(KERN_ERR "pc87360: Device allocation failed\n");
1623                goto exit;
1624        }
1625
1626        for (i = 0; i < 3; i++) {
1627                if (!extra_isa[i])
1628                        continue;
1629                res.start = extra_isa[i];
1630                res.end = extra_isa[i] + PC87360_EXTENT - 1;
1631
1632                err = acpi_check_resource_conflict(&res);
1633                if (err)
1634                        goto exit_device_put;
1635
1636                err = platform_device_add_resources(pdev, &res, 1);
1637                if (err) {
1638                        printk(KERN_ERR "pc87360: Device resource[%d] "
1639                               "addition failed (%d)\n", i, err);
1640                        goto exit_device_put;
1641                }
1642        }
1643
1644        err = platform_device_add(pdev);
1645        if (err) {
1646                printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
1647                       err);
1648                goto exit_device_put;
1649        }
1650
1651        return 0;
1652
1653exit_device_put:
1654        platform_device_put(pdev);
1655exit:
1656        return err;
1657}
1658
1659static int __init pc87360_init(void)
1660{
1661        int err, i;
1662        unsigned short address = 0;
1663
1664        if (pc87360_find(0x2e, &devid, extra_isa)
1665         && pc87360_find(0x4e, &devid, extra_isa)) {
1666                printk(KERN_WARNING "pc87360: PC8736x not detected, "
1667                       "module not inserted.\n");
1668                return -ENODEV;
1669        }
1670
1671        /* Arbitrarily pick one of the addresses */
1672        for (i = 0; i < 3; i++) {
1673                if (extra_isa[i] != 0x0000) {
1674                        address = extra_isa[i];
1675                        break;
1676                }
1677        }
1678
1679        if (address == 0x0000) {
1680                printk(KERN_WARNING "pc87360: No active logical device, "
1681                       "module not inserted.\n");
1682                return -ENODEV;
1683        }
1684
1685        err = platform_driver_register(&pc87360_driver);
1686        if (err)
1687                goto exit;
1688
1689        /* Sets global pdev as a side effect */
1690        err = pc87360_device_add(address);
1691        if (err)
1692                goto exit_driver;
1693
1694        return 0;
1695
1696 exit_driver:
1697        platform_driver_unregister(&pc87360_driver);
1698 exit:
1699        return err;
1700}
1701
1702static void __exit pc87360_exit(void)
1703{
1704        platform_device_unregister(pdev);
1705        platform_driver_unregister(&pc87360_driver);
1706}
1707
1708
1709MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1710MODULE_DESCRIPTION("PC8736x hardware monitor");
1711MODULE_LICENSE("GPL");
1712
1713module_init(pc87360_init);
1714module_exit(pc87360_exit);
1715