Quelle f71882fg.c

Sprache: C

// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
*   Copyright (C) 2006 by Hans Edgington <hans@edgington.nl>              *
*   Copyright (C) 2007-2011 Hans de Goede <hdegoede@redhat.com>           *
*                                                                         *
***************************************************************************/

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/acpi.h>

#define DRVNAME "f71882fg"

#define SIO_F71858FG_LD_HWM 0x02 /* Hardware monitor logical device */
#define SIO_F71882FG_LD_HWM 0x04 /* Hardware monitor logical device */
#define SIO_UNLOCK_KEY  0x87 /* Key to enable Super-I/O */
#define SIO_LOCK_KEY  0xAA /* Key to disable Super-I/O */

#define SIO_REG_LDSEL  0x07 /* Logical device select */
#define SIO_REG_DEVID  0x20 /* Device ID (2 bytes) */
#define SIO_REG_DEVREV  0x22 /* Device revision */
#define SIO_REG_MANID  0x23 /* Fintek ID (2 bytes) */
#define SIO_REG_ENABLE  0x30 /* Logical device enable */
#define SIO_REG_ADDR  0x60 /* Logical device address (2 bytes) */

#define SIO_FINTEK_ID  0x1934 /* Manufacturers ID */
#define SIO_F71808E_ID  0x0901 /* Chipset ID */
#define SIO_F71808A_ID  0x1001 /* Chipset ID */
#define SIO_F71858_ID  0x0507  /* Chipset ID */
#define SIO_F71862_ID  0x0601 /* Chipset ID */
#define SIO_F71868_ID  0x1106 /* Chipset ID */
#define SIO_F71869_ID  0x0814 /* Chipset ID */
#define SIO_F71869A_ID  0x1007 /* Chipset ID */
#define SIO_F71882_ID  0x0541 /* Chipset ID */
#define SIO_F71889_ID  0x0723 /* Chipset ID */
#define SIO_F71889E_ID  0x0909 /* Chipset ID */
#define SIO_F71889A_ID  0x1005 /* Chipset ID */
#define SIO_F8000_ID  0x0581 /* Chipset ID */
#define SIO_F81768D_ID  0x1210 /* Chipset ID */
#define SIO_F81865_ID  0x0704 /* Chipset ID */
#define SIO_F81866_ID  0x1010 /* Chipset ID */
#define SIO_F71858AD_ID  0x0903 /* Chipset ID */
#define SIO_F81966_ID  0x1502 /* Chipset ID */

#define REGION_LENGTH  8
#define ADDR_REG_OFFSET  5
#define DATA_REG_OFFSET  6

#define F71882FG_REG_IN_STATUS  0x12 /* f7188x only */
#define F71882FG_REG_IN_BEEP  0x13 /* f7188x only */
#define F71882FG_REG_IN(nr)  (0x20  + (nr))
#define F71882FG_REG_IN1_HIGH  0x32 /* f7188x only */

#define F81866_REG_IN_STATUS  0x16 /* F81866 only */
#define F81866_REG_IN_BEEP   0x17 /* F81866 only */
#define F81866_REG_IN1_HIGH  0x3a /* F81866 only */

#define F71882FG_REG_FAN(nr)  (0xA0 + (16 * (nr)))
#define F71882FG_REG_FAN_TARGET(nr) (0xA2 + (16 * (nr)))
#define F71882FG_REG_FAN_FULL_SPEED(nr) (0xA4 + (16 * (nr)))
#define F71882FG_REG_FAN_STATUS  0x92
#define F71882FG_REG_FAN_BEEP  0x93

#define F71882FG_REG_TEMP(nr)  (0x70 + 2 * (nr))
#define F71882FG_REG_TEMP_OVT(nr) (0x80 + 2 * (nr))
#define F71882FG_REG_TEMP_HIGH(nr) (0x81 + 2 * (nr))
#define F71882FG_REG_TEMP_STATUS 0x62
#define F71882FG_REG_TEMP_BEEP  0x63
#define F71882FG_REG_TEMP_CONFIG 0x69
#define F71882FG_REG_TEMP_HYST(nr) (0x6C + (nr))
#define F71882FG_REG_TEMP_TYPE  0x6B
#define F71882FG_REG_TEMP_DIODE_OPEN 0x6F

#define F71882FG_REG_PWM(nr)  (0xA3 + (16 * (nr)))
#define F71882FG_REG_PWM_TYPE  0x94
#define F71882FG_REG_PWM_ENABLE  0x96

#define F71882FG_REG_FAN_HYST(nr) (0x98 + (nr))

#define F71882FG_REG_FAN_FAULT_T 0x9F
#define F71882FG_FAN_NEG_TEMP_EN 0x20
#define F71882FG_FAN_PROG_SEL  0x80

#define F71882FG_REG_POINT_PWM(pwm, point) (0xAA + (point) + (16 * (pwm)))
#define F71882FG_REG_POINT_TEMP(pwm, point) (0xA6 + (point) + (16 * (pwm)))
#define F71882FG_REG_POINT_MAPPING(nr)  (0xAF + 16 * (nr))

#define F71882FG_REG_START  0x01

#define F71882FG_MAX_INS  11

#define FAN_MIN_DETECT   366 /* Lowest detectable fanspeed */

static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");

enum chips { f71808e, f71808a, f71858fg, f71862fg, f71868a, f71869, f71869a,
f71882fg, f71889fg, f71889ed, f71889a, f8000, f81768d, f81865f,
f81866a};

static const char *const f71882fg_names[] = {
"f71808e",
"f71808a",
"f71858fg",
"f71862fg",
"f71868a",
"f71869", /* Both f71869f and f71869e, reg. compatible and same id */
"f71869a",
"f71882fg",
"f71889fg", /* f81801u too, same id */
"f71889ed",
"f71889a",
"f8000",
"f81768d",
"f81865f",
"f81866a",
};

static const char f71882fg_has_in[][F71882FG_MAX_INS] = {
[f71808e] = { 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0 },
[f71808a] = { 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0 },
[f71858fg] = { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
[f71862fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f71868a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
[f71869] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f71869a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f71882fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f71889fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f71889ed] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f71889a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
[f8000]  = { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
[f81768d] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
[f81865f] = { 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0 },
[f81866a] = { 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
};

static const char f71882fg_has_in1_alarm[] = {
[f71808e] = 0,
[f71808a] = 0,
[f71858fg] = 0,
[f71862fg] = 0,
[f71868a] = 0,
[f71869] = 0,
[f71869a] = 0,
[f71882fg] = 1,
[f71889fg] = 1,
[f71889ed] = 1,
[f71889a] = 1,
[f8000]  = 0,
[f81768d] = 1,
[f81865f] = 1,
[f81866a] = 1,
};

static const char f71882fg_fan_has_beep[] = {
[f71808e] = 0,
[f71808a] = 0,
[f71858fg] = 0,
[f71862fg] = 1,
[f71868a] = 1,
[f71869] = 1,
[f71869a] = 1,
[f71882fg] = 1,
[f71889fg] = 1,
[f71889ed] = 1,
[f71889a] = 1,
[f8000]  = 0,
[f81768d] = 1,
[f81865f] = 1,
[f81866a] = 1,
};

static const char f71882fg_nr_fans[] = {
[f71808e] = 3,
[f71808a] = 2, /* +1 fan which is monitor + simple pwm only */
[f71858fg] = 3,
[f71862fg] = 3,
[f71868a] = 3,
[f71869] = 3,
[f71869a] = 3,
[f71882fg] = 4,
[f71889fg] = 3,
[f71889ed] = 3,
[f71889a] = 3,
[f8000]  = 3, /* +1 fan which is monitor only */
[f81768d] = 3,
[f81865f] = 2,
[f81866a] = 3,
};

static const char f71882fg_temp_has_beep[] = {
[f71808e] = 0,
[f71808a] = 1,
[f71858fg] = 0,
[f71862fg] = 1,
[f71868a] = 1,
[f71869] = 1,
[f71869a] = 1,
[f71882fg] = 1,
[f71889fg] = 1,
[f71889ed] = 1,
[f71889a] = 1,
[f8000]  = 0,
[f81768d] = 1,
[f81865f] = 1,
[f81866a] = 1,
};

static const char f71882fg_nr_temps[] = {
[f71808e] = 2,
[f71808a] = 2,
[f71858fg] = 3,
[f71862fg] = 3,
[f71868a] = 3,
[f71869] = 3,
[f71869a] = 3,
[f71882fg] = 3,
[f71889fg] = 3,
[f71889ed] = 3,
[f71889a] = 3,
[f8000]  = 3,
[f81768d] = 3,
[f81865f] = 2,
[f81866a] = 3,
};

static struct platform_device *f71882fg_pdev;

struct f71882fg_sio_data {
enum chips type;
};

struct f71882fg_data {
unsigned short addr;
enum chips type;
struct device *hwmon_dev;

struct mutex update_lock;
int temp_start;   /* temp numbering start (0 or 1) */
bool valid;   /* true if following fields are valid */
char auto_point_temp_signed;
unsigned long last_updated; /* In jiffies */
unsigned long last_limits; /* In jiffies */

/* Register Values */
u8 in[F71882FG_MAX_INS];
u8 in1_max;
u8 in_status;
u8 in_beep;
u16 fan[4];
u16 fan_target[4];
u16 fan_full_speed[4];
u8 fan_status;
u8 fan_beep;
/*
* Note: all models have max 3 temperature channels, but on some
* they are addressed as 0-2 and on others as 1-3, so for coding
* convenience we reserve space for 4 channels
*/
u16 temp[4];
u8 temp_ovt[4];
u8 temp_high[4];
u8 temp_hyst[2]; /* 2 hysts stored per reg */
u8 temp_type[4];
u8 temp_status;
u8 temp_beep;
u8 temp_diode_open;
u8 temp_config;
u8 pwm[4];
u8 pwm_enable;
u8 pwm_auto_point_hyst[2];
u8 pwm_auto_point_mapping[4];
u8 pwm_auto_point_pwm[4][5];
s8 pwm_auto_point_temp[4][4];
};

static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg)
{
u8 val;

outb(reg, data->addr + ADDR_REG_OFFSET);
val = inb(data->addr + DATA_REG_OFFSET);

return val;
}

static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg)
{
u16 val;

val  = f71882fg_read8(data, reg) << 8;
val |= f71882fg_read8(data, reg + 1);

return val;
}

static inline int fan_from_reg(u16 reg)
{
return reg ? (1500000 / reg) : 0;
}

static inline u16 fan_to_reg(int fan)
{
return fan ? (1500000 / fan) : 0;
}

static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val)
{
outb(reg, data->addr + ADDR_REG_OFFSET);
outb(val, data->addr + DATA_REG_OFFSET);
}

static void f71882fg_write16(struct f71882fg_data *data, u8 reg, u16 val)
{
f71882fg_write8(data, reg,     val >> 8);
f71882fg_write8(data, reg + 1, val & 0xff);
}

static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr)
{
if (data->type == f71858fg)
  return f71882fg_read16(data, F71882FG_REG_TEMP(nr));
else
  return f71882fg_read8(data, F71882FG_REG_TEMP(nr));
}

static struct f71882fg_data *f71882fg_update_device(struct device *dev)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int nr_fans = f71882fg_nr_fans[data->type];
int nr_temps = f71882fg_nr_temps[data->type];
int nr, reg, point;

mutex_lock(&data->update_lock);

/* Update once every 60 seconds */
if (time_after(jiffies, data->last_limits + 60 * HZ) ||
   !data->valid) {
  if (f71882fg_has_in1_alarm[data->type]) {
   if (data->type == f81866a) {
    data->in1_max =
     f71882fg_read8(data,
             F81866_REG_IN1_HIGH);
    data->in_beep =
     f71882fg_read8(data,
             F81866_REG_IN_BEEP);
   } else {
    data->in1_max =
     f71882fg_read8(data,
             F71882FG_REG_IN1_HIGH);
    data->in_beep =
     f71882fg_read8(data,
             F71882FG_REG_IN_BEEP);
   }
  }

  /* Get High & boundary temps*/
  for (nr = data->temp_start; nr < nr_temps + data->temp_start;
         nr++) {
   data->temp_ovt[nr] = f71882fg_read8(data,
      F71882FG_REG_TEMP_OVT(nr));
   data->temp_high[nr] = f71882fg_read8(data,
      F71882FG_REG_TEMP_HIGH(nr));
  }

  if (data->type != f8000) {
   data->temp_hyst[0] = f71882fg_read8(data,
      F71882FG_REG_TEMP_HYST(0));
   data->temp_hyst[1] = f71882fg_read8(data,
      F71882FG_REG_TEMP_HYST(1));
  }
  /* All but the f71858fg / f8000 have this register */
  if ((data->type != f71858fg) && (data->type != f8000)) {
   reg  = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
   data->temp_type[1] = (reg & 0x02) ? 2 : 4;
   data->temp_type[2] = (reg & 0x04) ? 2 : 4;
   data->temp_type[3] = (reg & 0x08) ? 2 : 4;
  }

  if (f71882fg_fan_has_beep[data->type])
   data->fan_beep = f71882fg_read8(data,
      F71882FG_REG_FAN_BEEP);

  if (f71882fg_temp_has_beep[data->type])
   data->temp_beep = f71882fg_read8(data,
      F71882FG_REG_TEMP_BEEP);

  data->pwm_enable = f71882fg_read8(data,
        F71882FG_REG_PWM_ENABLE);
  data->pwm_auto_point_hyst[0] =
   f71882fg_read8(data, F71882FG_REG_FAN_HYST(0));
  data->pwm_auto_point_hyst[1] =
   f71882fg_read8(data, F71882FG_REG_FAN_HYST(1));

  for (nr = 0; nr < nr_fans; nr++) {
   data->pwm_auto_point_mapping[nr] =
       f71882fg_read8(data,
        F71882FG_REG_POINT_MAPPING(nr));

   switch (data->type) {
   default:
    for (point = 0; point < 5; point++) {
     data->pwm_auto_point_pwm[nr][point] =
      f71882fg_read8(data,
       F71882FG_REG_POINT_PWM
       (nr, point));
    }
    for (point = 0; point < 4; point++) {
     data->pwm_auto_point_temp[nr][point] =
      f71882fg_read8(data,
       F71882FG_REG_POINT_TEMP
       (nr, point));
    }
    break;
   case f71808e:
   case f71869:
    data->pwm_auto_point_pwm[nr][0] =
     f71882fg_read8(data,
      F71882FG_REG_POINT_PWM(nr, 0));
    fallthrough;
   case f71862fg:
    data->pwm_auto_point_pwm[nr][1] =
     f71882fg_read8(data,
      F71882FG_REG_POINT_PWM
      (nr, 1));
    data->pwm_auto_point_pwm[nr][4] =
     f71882fg_read8(data,
      F71882FG_REG_POINT_PWM
      (nr, 4));
    data->pwm_auto_point_temp[nr][0] =
     f71882fg_read8(data,
      F71882FG_REG_POINT_TEMP
      (nr, 0));
    data->pwm_auto_point_temp[nr][3] =
     f71882fg_read8(data,
      F71882FG_REG_POINT_TEMP
      (nr, 3));
    break;
   }
  }
  data->last_limits = jiffies;
}

/* Update every second */
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
  data->temp_status = f71882fg_read8(data,
      F71882FG_REG_TEMP_STATUS);
  data->temp_diode_open = f71882fg_read8(data,
      F71882FG_REG_TEMP_DIODE_OPEN);
  for (nr = data->temp_start; nr < nr_temps + data->temp_start;
         nr++)
   data->temp[nr] = f71882fg_read_temp(data, nr);

  data->fan_status = f71882fg_read8(data,
      F71882FG_REG_FAN_STATUS);
  for (nr = 0; nr < nr_fans; nr++) {
   data->fan[nr] = f71882fg_read16(data,
      F71882FG_REG_FAN(nr));
   data->fan_target[nr] =
       f71882fg_read16(data, F71882FG_REG_FAN_TARGET(nr));
   data->fan_full_speed[nr] =
       f71882fg_read16(data,
         F71882FG_REG_FAN_FULL_SPEED(nr));
   data->pwm[nr] =
       f71882fg_read8(data, F71882FG_REG_PWM(nr));
  }
  /* Some models have 1 more fan with limited capabilities */
  if (data->type == f71808a) {
   data->fan[2] = f71882fg_read16(data,
      F71882FG_REG_FAN(2));
   data->pwm[2] = f71882fg_read8(data,
       F71882FG_REG_PWM(2));
  }
  if (data->type == f8000)
   data->fan[3] = f71882fg_read16(data,
      F71882FG_REG_FAN(3));

  if (f71882fg_has_in1_alarm[data->type]) {
   if (data->type == f81866a)
    data->in_status = f71882fg_read8(data,
      F81866_REG_IN_STATUS);

   else
    data->in_status = f71882fg_read8(data,
      F71882FG_REG_IN_STATUS);
  }

  for (nr = 0; nr < F71882FG_MAX_INS; nr++)
   if (f71882fg_has_in[data->type][nr])
    data->in[nr] = f71882fg_read8(data,
       F71882FG_REG_IN(nr));

  data->last_updated = jiffies;
  data->valid = true;
}

mutex_unlock(&data->update_lock);

return data;
}

static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", f71882fg_names[data->type]);
}

static DEVICE_ATTR_RO(name);

static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;
int sign, temp;

if (data->type == f71858fg) {
  /* TEMP_TABLE_SEL 1 or 3 ? */
  if (data->temp_config & 1) {
   sign = data->temp[nr] & 0x0001;
   temp = (data->temp[nr] >> 5) & 0x7ff;
  } else {
   sign = data->temp[nr] & 0x8000;
   temp = (data->temp[nr] >> 5) & 0x3ff;
  }
  temp *= 125;
  if (sign)
   temp -= 128000;
} else {
  temp = ((s8)data->temp[nr]) * 1000;
}

return sprintf(buf, "%d\n", temp);
}

static ssize_t show_temp_max(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

return sprintf(buf, "%d\n", data->temp_high[nr] * 1000);
}

static ssize_t store_temp_max(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val /= 1000;
val = clamp_val(val, 0, 255);

mutex_lock(&data->update_lock);
f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val);
data->temp_high[nr] = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;
int temp_max_hyst;

mutex_lock(&data->update_lock);
if (nr & 1)
  temp_max_hyst = data->temp_hyst[nr / 2] >> 4;
else
  temp_max_hyst = data->temp_hyst[nr / 2] & 0x0f;
temp_max_hyst = (data->temp_high[nr] - temp_max_hyst) * 1000;
mutex_unlock(&data->update_lock);

return sprintf(buf, "%d\n", temp_max_hyst);
}

static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
ssize_t ret = count;
u8 reg;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val /= 1000;

mutex_lock(&data->update_lock);

/* convert abs to relative and check */
data->temp_high[nr] = f71882fg_read8(data, F71882FG_REG_TEMP_HIGH(nr));
val = clamp_val(val, data->temp_high[nr] - 15, data->temp_high[nr]);
val = data->temp_high[nr] - val;

/* convert value to register contents */
reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST(nr / 2));
if (nr & 1)
  reg = (reg & 0x0f) | (val << 4);
else
  reg = (reg & 0xf0) | val;
f71882fg_write8(data, F71882FG_REG_TEMP_HYST(nr / 2), reg);
data->temp_hyst[nr / 2] = reg;

mutex_unlock(&data->update_lock);
return ret;
}

static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->temp_status & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

static ssize_t show_temp_crit(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000);
}

static ssize_t store_temp_crit(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val /= 1000;
val = clamp_val(val, 0, 255);

mutex_lock(&data->update_lock);
f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val);
data->temp_ovt[nr] = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;
int temp_crit_hyst;

mutex_lock(&data->update_lock);
if (nr & 1)
  temp_crit_hyst = data->temp_hyst[nr / 2] >> 4;
else
  temp_crit_hyst = data->temp_hyst[nr / 2] & 0x0f;
temp_crit_hyst = (data->temp_ovt[nr] - temp_crit_hyst) * 1000;
mutex_unlock(&data->update_lock);

return sprintf(buf, "%d\n", temp_crit_hyst);
}

static ssize_t show_temp_fault(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->temp_diode_open & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

/*
* Temp attr for the f71858fg, the f71858fg is special as it has its
* temperature indexes start at 0 (the others start at 1)
*/
static struct sensor_device_attribute_2 f71858fg_temp_attr[] = {
SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 0),
SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
  store_temp_max_hyst, 0, 0),
SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 0),
SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 0),
SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
  0, 0),
SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 1),
SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
  store_temp_max_hyst, 0, 1),
SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 1),
SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
  0, 1),
SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 2),
SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
  store_temp_max_hyst, 0, 2),
SENSOR_ATTR_2(temp3_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 2),
SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
  0, 2),
SENSOR_ATTR_2(temp3_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
};

static ssize_t show_temp_type(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

return sprintf(buf, "%d\n", data->temp_type[nr]);
}

/* Temp attr for the standard models */
static struct sensor_device_attribute_2 fxxxx_temp_attr[3][9] = { {
SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 1),
SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 1),
SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
  store_temp_max_hyst, 0, 1),
/*
* Should really be temp1_max_alarm, but older versions did not handle
* the max and crit alarms separately and lm_sensors v2 depends on the
* presence of temp#_alarm files. The same goes for temp2/3 _alarm.
*/
SENSOR_ATTR_2(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 1),
SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
  0, 1),
SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
SENSOR_ATTR_2(temp1_type, S_IRUGO, show_temp_type, NULL, 0, 1),
SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
}, {
SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 2),
SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 2),
SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
  store_temp_max_hyst, 0, 2),
/* Should be temp2_max_alarm, see temp1_alarm note */
SENSOR_ATTR_2(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 2),
SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
  0, 2),
SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 2),
SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
}, {
SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 3),
SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 3),
SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
  store_temp_max_hyst, 0, 3),
/* Should be temp3_max_alarm, see temp1_alarm note */
SENSOR_ATTR_2(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 3),
SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 3),
SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
  0, 3),
SENSOR_ATTR_2(temp3_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 7),
SENSOR_ATTR_2(temp3_type, S_IRUGO, show_temp_type, NULL, 0, 3),
SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 3),
} };

static ssize_t show_temp_beep(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->temp_beep & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

static ssize_t store_temp_beep(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
unsigned long val;

err = kstrtoul(buf, 10, &val);
if (err)
  return err;

mutex_lock(&data->update_lock);
data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP);
if (val)
  data->temp_beep |= 1 << nr;
else
  data->temp_beep &= ~(1 << nr);

f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep);
mutex_unlock(&data->update_lock);

return count;
}

/* Temp attr for models which can beep on temp alarm */
static struct sensor_device_attribute_2 fxxxx_temp_beep_attr[3][2] = { {
SENSOR_ATTR_2(temp1_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 1),
SENSOR_ATTR_2(temp1_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 5),
}, {
SENSOR_ATTR_2(temp2_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 2),
SENSOR_ATTR_2(temp2_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 6),
}, {
SENSOR_ATTR_2(temp3_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 3),
SENSOR_ATTR_2(temp3_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 7),
} };

static struct sensor_device_attribute_2 f81866_temp_beep_attr[3][2] = { {
SENSOR_ATTR_2(temp1_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 0),
SENSOR_ATTR_2(temp1_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 4),
}, {
SENSOR_ATTR_2(temp2_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 1),
SENSOR_ATTR_2(temp2_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 5),
}, {
SENSOR_ATTR_2(temp3_max_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 2),
SENSOR_ATTR_2(temp3_crit_beep, S_IRUGO|S_IWUSR, show_temp_beep,
  store_temp_beep, 0, 6),
} };

/*
* Temp attr for the f8000
* Note on the f8000 temp_ovt (crit) is used as max, and temp_high (max)
* is used as hysteresis value to clear alarms
* Also like the f71858fg its temperature indexes start at 0
*/
static struct sensor_device_attribute_2 f8000_temp_attr[] = {
SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 0),
SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 0),
SENSOR_ATTR_2(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 1),
SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 1),
SENSOR_ATTR_2(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_crit,
  store_temp_crit, 0, 2),
SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
  store_temp_max, 0, 2),
SENSOR_ATTR_2(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
};

static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

return sprintf(buf, "%d\n", data->in[nr] * 8);
}

/* in attr for all models */
static struct sensor_device_attribute_2 fxxxx_in_attr[] = {
SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
SENSOR_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 0, 3),
SENSOR_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 0, 4),
SENSOR_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 0, 5),
SENSOR_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 0, 6),
SENSOR_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 0, 7),
SENSOR_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 0, 8),
SENSOR_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 0, 9),
SENSOR_ATTR_2(in10_input, S_IRUGO, show_in, NULL, 0, 10),
};

static ssize_t show_in_max(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);

return sprintf(buf, "%d\n", data->in1_max * 8);
}

static ssize_t store_in_max(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val /= 8;
val = clamp_val(val, 0, 255);

mutex_lock(&data->update_lock);
if (data->type == f81866a)
  f71882fg_write8(data, F81866_REG_IN1_HIGH, val);
else
  f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
data->in1_max = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_in_beep(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->in_beep & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

static ssize_t store_in_beep(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
unsigned long val;

err = kstrtoul(buf, 10, &val);
if (err)
  return err;

mutex_lock(&data->update_lock);
if (data->type == f81866a)
  data->in_beep = f71882fg_read8(data, F81866_REG_IN_BEEP);
else
  data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);

if (val)
  data->in_beep |= 1 << nr;
else
  data->in_beep &= ~(1 << nr);

if (data->type == f81866a)
  f71882fg_write8(data, F81866_REG_IN_BEEP, data->in_beep);
else
  f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_in_alarm(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->in_status & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

/* For models with in1 alarm capability */
static struct sensor_device_attribute_2 fxxxx_in1_alarm_attr[] = {
SENSOR_ATTR_2(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max,
  0, 1),
SENSOR_ATTR_2(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep,
  0, 1),
SENSOR_ATTR_2(in1_alarm, S_IRUGO, show_in_alarm, NULL, 0, 1),
};

static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;
int speed = fan_from_reg(data->fan[nr]);

if (speed == FAN_MIN_DETECT)
  speed = 0;

return sprintf(buf, "%d\n", speed);
}

static ssize_t show_fan_full_speed(struct device *dev,
       struct device_attribute *devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;
int speed = fan_from_reg(data->fan_full_speed[nr]);
return sprintf(buf, "%d\n", speed);
}

static ssize_t store_fan_full_speed(struct device *dev,
        struct device_attribute *devattr,
        const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val = clamp_val(val, 23, 1500000);
val = fan_to_reg(val);

mutex_lock(&data->update_lock);
f71882fg_write16(data, F71882FG_REG_FAN_FULL_SPEED(nr), val);
data->fan_full_speed[nr] = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->fan_status & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

static ssize_t show_pwm(struct device *dev,
   struct device_attribute *devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int val, nr = to_sensor_dev_attr_2(devattr)->index;
mutex_lock(&data->update_lock);
if (data->pwm_enable & (1 << (2 * nr)))
  /* PWM mode */
  val = data->pwm[nr];
else {
  /* RPM mode */
  if (fan_from_reg(data->fan_full_speed[nr]))
   val = 255 * fan_from_reg(data->fan_target[nr])
    / fan_from_reg(data->fan_full_speed[nr]);
  else
   val = 0;
}
mutex_unlock(&data->update_lock);
return sprintf(buf, "%d\n", val);
}

static ssize_t store_pwm(struct device *dev,
    struct device_attribute *devattr, const char *buf,
    size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val = clamp_val(val, 0, 255);

mutex_lock(&data->update_lock);
data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
if ((data->type == f8000 && ((data->pwm_enable >> 2 * nr) & 3) != 2) ||
     (data->type != f8000 && !((data->pwm_enable >> 2 * nr) & 2))) {
  count = -EROFS;
  goto leave;
}
if (data->pwm_enable & (1 << (2 * nr))) {
  /* PWM mode */
  f71882fg_write8(data, F71882FG_REG_PWM(nr), val);
  data->pwm[nr] = val;
} else {
  /* RPM mode */
  int target, full_speed;
  full_speed = f71882fg_read16(data,
          F71882FG_REG_FAN_FULL_SPEED(nr));
  target = fan_to_reg(val * fan_from_reg(full_speed) / 255);
  f71882fg_write16(data, F71882FG_REG_FAN_TARGET(nr), target);
  data->fan_target[nr] = target;
  data->fan_full_speed[nr] = full_speed;
}
leave:
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_pwm_enable(struct device *dev,
          struct device_attribute *devattr, char *buf)
{
int result = 0;
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

switch ((data->pwm_enable >> 2 * nr) & 3) {
case 0:
case 1:
  result = 2; /* Normal auto mode */
  break;
case 2:
  result = 1; /* Manual mode */
  break;
case 3:
  if (data->type == f8000)
   result = 3; /* Thermostat mode */
  else
   result = 1; /* Manual mode */
  break;
}

return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_enable(struct device *dev, struct device_attribute
    *devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

/* Special case for F8000 pwm channel 3 which only does auto mode */
if (data->type == f8000 && nr == 2 && val != 2)
  return -EINVAL;

mutex_lock(&data->update_lock);
data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
/* Special case for F8000 auto PWM mode / Thermostat mode */
if (data->type == f8000 && ((data->pwm_enable >> 2 * nr) & 1)) {
  switch (val) {
  case 2:
   data->pwm_enable &= ~(2 << (2 * nr));
   break;  /* Normal auto mode */
  case 3:
   data->pwm_enable |= 2 << (2 * nr);
   break;  /* Thermostat mode */
  default:
   count = -EINVAL;
   goto leave;
  }
} else {
  switch (val) {
  case 1:
   /* The f71858fg does not support manual RPM mode */
   if (data->type == f71858fg &&
       ((data->pwm_enable >> (2 * nr)) & 1)) {
    count = -EINVAL;
    goto leave;
   }
   data->pwm_enable |= 2 << (2 * nr);
   break;  /* Manual */
  case 2:
   data->pwm_enable &= ~(2 << (2 * nr));
   break;  /* Normal auto mode */
  default:
   count = -EINVAL;
   goto leave;
  }
}
f71882fg_write8(data, F71882FG_REG_PWM_ENABLE, data->pwm_enable);
leave:
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_pwm_interpolate(struct device *dev,
        struct device_attribute *devattr, char *buf)
{
int result;
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

result = (data->pwm_auto_point_mapping[nr] >> 4) & 1;

return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_interpolate(struct device *dev,
         struct device_attribute *devattr,
         const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
unsigned long val;

err = kstrtoul(buf, 10, &val);
if (err)
  return err;

mutex_lock(&data->update_lock);
data->pwm_auto_point_mapping[nr] =
  f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(nr));
if (val)
  val = data->pwm_auto_point_mapping[nr] | (1 << 4);
else
  val = data->pwm_auto_point_mapping[nr] & (~(1 << 4));
f71882fg_write8(data, F71882FG_REG_POINT_MAPPING(nr), val);
data->pwm_auto_point_mapping[nr] = val;
mutex_unlock(&data->update_lock);

return count;
}

/* Fan / PWM attr common to all models */
static struct sensor_device_attribute_2 fxxxx_fan_attr[4][6] = { {
SENSOR_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0),
SENSOR_ATTR_2(fan1_full_speed, S_IRUGO|S_IWUSR,
        show_fan_full_speed,
        store_fan_full_speed, 0, 0),
SENSOR_ATTR_2(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 0),
SENSOR_ATTR_2(pwm1, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 0),
SENSOR_ATTR_2(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
        store_pwm_enable, 0, 0),
SENSOR_ATTR_2(pwm1_interpolate, S_IRUGO|S_IWUSR,
        show_pwm_interpolate, store_pwm_interpolate, 0, 0),
}, {
SENSOR_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 0, 1),
SENSOR_ATTR_2(fan2_full_speed, S_IRUGO|S_IWUSR,
        show_fan_full_speed,
        store_fan_full_speed, 0, 1),
SENSOR_ATTR_2(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 1),
SENSOR_ATTR_2(pwm2, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 1),
SENSOR_ATTR_2(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
        store_pwm_enable, 0, 1),
SENSOR_ATTR_2(pwm2_interpolate, S_IRUGO|S_IWUSR,
        show_pwm_interpolate, store_pwm_interpolate, 0, 1),
}, {
SENSOR_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 0, 2),
SENSOR_ATTR_2(fan3_full_speed, S_IRUGO|S_IWUSR,
        show_fan_full_speed,
        store_fan_full_speed, 0, 2),
SENSOR_ATTR_2(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 2),
SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 2),
SENSOR_ATTR_2(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
        store_pwm_enable, 0, 2),
SENSOR_ATTR_2(pwm3_interpolate, S_IRUGO|S_IWUSR,
        show_pwm_interpolate, store_pwm_interpolate, 0, 2),
}, {
SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
SENSOR_ATTR_2(fan4_full_speed, S_IRUGO|S_IWUSR,
        show_fan_full_speed,
        store_fan_full_speed, 0, 3),
SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
SENSOR_ATTR_2(pwm4, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 3),
SENSOR_ATTR_2(pwm4_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
        store_pwm_enable, 0, 3),
SENSOR_ATTR_2(pwm4_interpolate, S_IRUGO|S_IWUSR,
        show_pwm_interpolate, store_pwm_interpolate, 0, 3),
} };

static ssize_t show_simple_pwm(struct device *dev,
          struct device_attribute *devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int val, nr = to_sensor_dev_attr_2(devattr)->index;

val = data->pwm[nr];
return sprintf(buf, "%d\n", val);
}

static ssize_t store_simple_pwm(struct device *dev,
    struct device_attribute *devattr,
    const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val = clamp_val(val, 0, 255);

mutex_lock(&data->update_lock);
f71882fg_write8(data, F71882FG_REG_PWM(nr), val);
data->pwm[nr] = val;
mutex_unlock(&data->update_lock);

return count;
}

/* Attr for the third fan of the f71808a, which only has manual pwm */
static struct sensor_device_attribute_2 f71808a_fan3_attr[] = {
SENSOR_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 0, 2),
SENSOR_ATTR_2(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 2),
SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR,
        show_simple_pwm, store_simple_pwm, 0, 2),
};

static ssize_t show_fan_beep(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

if (data->fan_beep & (1 << nr))
  return sprintf(buf, "1\n");
else
  return sprintf(buf, "0\n");
}

static ssize_t store_fan_beep(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
unsigned long val;

err = kstrtoul(buf, 10, &val);
if (err)
  return err;

mutex_lock(&data->update_lock);
data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP);
if (val)
  data->fan_beep |= 1 << nr;
else
  data->fan_beep &= ~(1 << nr);

f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep);
mutex_unlock(&data->update_lock);

return count;
}

/* Attr for models which can beep on Fan alarm */
static struct sensor_device_attribute_2 fxxxx_fan_beep_attr[] = {
SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
  store_fan_beep, 0, 0),
SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
  store_fan_beep, 0, 1),
SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
  store_fan_beep, 0, 2),
SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
  store_fan_beep, 0, 3),
};

static ssize_t show_pwm_auto_point_channel(struct device *dev,
        struct device_attribute *devattr,
        char *buf)
{
int result;
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;

result = 1 << ((data->pwm_auto_point_mapping[nr] & 3) -
         data->temp_start);

return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_auto_point_channel(struct device *dev,
         struct device_attribute *devattr,
         const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

switch (val) {
case 1:
  val = 0;
  break;
case 2:
  val = 1;
  break;
case 4:
  val = 2;
  break;
default:
  return -EINVAL;
}
val += data->temp_start;
mutex_lock(&data->update_lock);
data->pwm_auto_point_mapping[nr] =
  f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(nr));
val = (data->pwm_auto_point_mapping[nr] & 0xfc) | val;
f71882fg_write8(data, F71882FG_REG_POINT_MAPPING(nr), val);
data->pwm_auto_point_mapping[nr] = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_pwm_auto_point_pwm(struct device *dev,
           struct device_attribute *devattr,
           char *buf)
{
int result;
struct f71882fg_data *data = f71882fg_update_device(dev);
int pwm = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;

mutex_lock(&data->update_lock);
if (data->pwm_enable & (1 << (2 * pwm))) {
  /* PWM mode */
  result = data->pwm_auto_point_pwm[pwm][point];
} else {
  /* RPM mode */
  result = 32 * 255 / (32 + data->pwm_auto_point_pwm[pwm][point]);
}
mutex_unlock(&data->update_lock);

return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_auto_point_pwm(struct device *dev,
     struct device_attribute *devattr,
     const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, pwm = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val = clamp_val(val, 0, 255);

mutex_lock(&data->update_lock);
data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
if (data->pwm_enable & (1 << (2 * pwm))) {
  /* PWM mode */
} else {
  /* RPM mode */
  if (val < 29) /* Prevent negative numbers */
   val = 255;
  else
   val = (255 - val) * 32 / val;
}
f71882fg_write8(data, F71882FG_REG_POINT_PWM(pwm, point), val);
data->pwm_auto_point_pwm[pwm][point] = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_pwm_auto_point_temp(struct device *dev,
     struct device_attribute *devattr,
     char *buf)
{
int result;
struct f71882fg_data *data = f71882fg_update_device(dev);
int pwm = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;

result = data->pwm_auto_point_temp[pwm][point];
return sprintf(buf, "%d\n", 1000 * result);
}

static ssize_t store_pwm_auto_point_temp(struct device *dev,
      struct device_attribute *devattr,
      const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, pwm = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val /= 1000;

if (data->auto_point_temp_signed)
  val = clamp_val(val, -128, 127);
else
  val = clamp_val(val, 0, 127);

mutex_lock(&data->update_lock);
f71882fg_write8(data, F71882FG_REG_POINT_TEMP(pwm, point), val);
data->pwm_auto_point_temp[pwm][point] = val;
mutex_unlock(&data->update_lock);

return count;
}

static ssize_t show_pwm_auto_point_temp_hyst(struct device *dev,
          struct device_attribute *devattr,
          char *buf)
{
int result = 0;
struct f71882fg_data *data = f71882fg_update_device(dev);
int nr = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;

mutex_lock(&data->update_lock);
if (nr & 1)
  result = data->pwm_auto_point_hyst[nr / 2] >> 4;
else
  result = data->pwm_auto_point_hyst[nr / 2] & 0x0f;
result = 1000 * (data->pwm_auto_point_temp[nr][point] - result);
mutex_unlock(&data->update_lock);

return sprintf(buf, "%d\n", result);
}

static ssize_t store_pwm_auto_point_temp_hyst(struct device *dev,
           struct device_attribute *devattr,
           const char *buf, size_t count)
{
struct f71882fg_data *data = dev_get_drvdata(dev);
int err, nr = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;
u8 reg;
long val;

err = kstrtol(buf, 10, &val);
if (err)
  return err;

val /= 1000;

mutex_lock(&data->update_lock);
data->pwm_auto_point_temp[nr][point] =
  f71882fg_read8(data, F71882FG_REG_POINT_TEMP(nr, point));
val = clamp_val(val, data->pwm_auto_point_temp[nr][point] - 15,
   data->pwm_auto_point_temp[nr][point]);
val = data->pwm_auto_point_temp[nr][point] - val;

reg = f71882fg_read8(data, F71882FG_REG_FAN_HYST(nr / 2));
if (nr & 1)
  reg = (reg & 0x0f) | (val << 4);
else
  reg = (reg & 0xf0) | val;

f71882fg_write8(data, F71882FG_REG_FAN_HYST(nr / 2), reg);
data->pwm_auto_point_hyst[nr / 2] = reg;
mutex_unlock(&data->update_lock);

return count;
}

/*
* PWM attr for the f71862fg, fewer pwms and fewer zones per pwm than the
* standard models
*/
static struct sensor_device_attribute_2 f71862fg_auto_pwm_attr[3][7] = { {
SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 0),
SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 0),
SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 1),
SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 1),
SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 1),
SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 1),
SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 1),
}, {
SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 2),
SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 2),
SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 2),
SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 2),
SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 2),
} };

/*
* PWM attr for the f71808e/f71869, almost identical to the f71862fg, but the
* pwm setting when the temperature is above the pwmX_auto_point1_temp can be
* programmed instead of being hardcoded to 0xff
*/
static struct sensor_device_attribute_2 f71869_auto_pwm_attr[3][8] = { {
SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 0),
SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 0),
SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 1),
SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 1),
SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 1),
SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 1),
SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 1),
}, {
SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 2),
SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 2),
SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 2),
SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 2),
SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 2),
} };

/* PWM attr for the standard models */
static struct sensor_device_attribute_2 fxxxx_auto_pwm_attr[4][14] = { {
SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 0),
SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 0),
SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 0),
SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 0),
SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 0),
SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 0),
SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 0),
SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 0),
SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 1),
SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 1),
SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 1),
SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 1),
SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 1),
SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 1),
SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 1),
SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 1),
SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 1),
SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 1),
SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 1),
}, {
SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 2),
SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 2),
SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 2),
SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 2),
SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 2),
SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 2),
SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 2),
SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 2),
SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 2),
SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 2),
SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 2),
SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 2),
}, {
SENSOR_ATTR_2(pwm4_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 3),
SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 3),
SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 3),
SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 3),
SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 3),
SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 3),
SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 3),
SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 3),
SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 3),
SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 3),
SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 3),
SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 3),
SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 3),
SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 3),
} };

/* Fan attr specific to the f8000 (4th fan input can only measure speed) */
static struct sensor_device_attribute_2 f8000_fan_attr[] = {
SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
};

/*
* PWM attr for the f8000, zones mapped to temp instead of to pwm!
* Also the register block at offset A0 maps to TEMP1 (so our temp2, as the
* F8000 starts counting temps at 0), B0 maps the TEMP2 and C0 maps to TEMP0
*/
static struct sensor_device_attribute_2 f8000_auto_pwm_attr[3][14] = { {
SENSOR_ATTR_2(pwm1_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 0),
SENSOR_ATTR_2(temp1_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 2),
SENSOR_ATTR_2(temp1_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 2),
SENSOR_ATTR_2(temp1_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 2),
SENSOR_ATTR_2(temp1_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 2),
SENSOR_ATTR_2(temp1_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 2),
SENSOR_ATTR_2(temp1_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 2),
SENSOR_ATTR_2(temp1_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 2),
SENSOR_ATTR_2(temp1_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 2),
SENSOR_ATTR_2(temp1_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 2),
SENSOR_ATTR_2(temp1_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 2),
SENSOR_ATTR_2(temp1_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 2),
SENSOR_ATTR_2(temp1_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 2),
SENSOR_ATTR_2(temp1_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 2),
}, {
SENSOR_ATTR_2(pwm2_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 1),
SENSOR_ATTR_2(temp2_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 0),
SENSOR_ATTR_2(temp2_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 0),
SENSOR_ATTR_2(temp2_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 0),
SENSOR_ATTR_2(temp2_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 0),
SENSOR_ATTR_2(temp2_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 0),
SENSOR_ATTR_2(temp2_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 0),
SENSOR_ATTR_2(temp2_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 0),
SENSOR_ATTR_2(temp2_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 0),
SENSOR_ATTR_2(temp2_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 0),
SENSOR_ATTR_2(temp2_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 0),
SENSOR_ATTR_2(temp2_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 0),
SENSOR_ATTR_2(temp2_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 0),
SENSOR_ATTR_2(temp2_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 0),
}, {
SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_channel,
        store_pwm_auto_point_channel, 0, 2),
SENSOR_ATTR_2(temp3_auto_point1_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        0, 1),
SENSOR_ATTR_2(temp3_auto_point2_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        1, 1),
SENSOR_ATTR_2(temp3_auto_point3_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        2, 1),
SENSOR_ATTR_2(temp3_auto_point4_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        3, 1),
SENSOR_ATTR_2(temp3_auto_point5_pwm, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
        4, 1),
SENSOR_ATTR_2(temp3_auto_point1_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        0, 1),
SENSOR_ATTR_2(temp3_auto_point2_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        1, 1),
SENSOR_ATTR_2(temp3_auto_point3_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        2, 1),
SENSOR_ATTR_2(temp3_auto_point4_temp, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp, store_pwm_auto_point_temp,
        3, 1),
SENSOR_ATTR_2(temp3_auto_point1_temp_hyst, S_IRUGO|S_IWUSR,
        show_pwm_auto_point_temp_hyst,
        store_pwm_auto_point_temp_hyst,
        0, 1),
SENSOR_ATTR_2(temp3_auto_point2_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 1, 1),
SENSOR_ATTR_2(temp3_auto_point3_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 2, 1),
SENSOR_ATTR_2(temp3_auto_point4_temp_hyst, S_IRUGO,
        show_pwm_auto_point_temp_hyst, NULL, 3, 1),
} };

/* Super I/O functions */
static inline int superio_inb(int base, int reg)
{
outb(reg, base);
return inb(base + 1);
}

static int superio_inw(int base, int reg)
{
int val;
val  = superio_inb(base, reg) << 8;
val |= superio_inb(base, reg + 1);
return val;
}

static inline int superio_enter(int base)
{
/* Don't step on other drivers' I/O space by accident */
if (!request_muxed_region(base, 2, DRVNAME)) {
  pr_err("I/O address 0x%04x already in use\n", base);
  return -EBUSY;
}

/* according to the datasheet the key must be send twice! */
outb(SIO_UNLOCK_KEY, base);
outb(SIO_UNLOCK_KEY, base);

return 0;
}

static inline void superio_select(int base, int ld)
{
outb(SIO_REG_LDSEL, base);
outb(ld, base + 1);
}

static inline void superio_exit(int base)
{
outb(SIO_LOCK_KEY, base);
release_region(base, 2);
}

static int f71882fg_create_sysfs_files(struct platform_device *pdev,
struct sensor_device_attribute_2 *attr, int count)
{
int err, i;

for (i = 0; i < count; i++) {
  err = device_create_file(&pdev->dev, &attr[i].dev_attr);
  if (err)
   return err;
}
return 0;
}

static void f71882fg_remove_sysfs_files(struct platform_device *pdev,
struct sensor_device_attribute_2 *attr, int count)
{
int i;

for (i = 0; i < count; i++)
  device_remove_file(&pdev->dev, &attr[i].dev_attr);
}

static int f71882fg_create_fan_sysfs_files(
struct platform_device *pdev, int idx)
{
struct f71882fg_data *data = platform_get_drvdata(pdev);
int err;

/* Sanity check the pwm setting */
err = 0;
switch (data->type) {
case f71858fg:
  if (((data->pwm_enable >> (idx * 2)) & 3) == 3)
   err = 1;
  break;
case f71862fg:
  if (((data->pwm_enable >> (idx * 2)) & 1) != 1)
   err = 1;
  break;
case f8000:
  if (idx == 2)
   err = data->pwm_enable & 0x20;
  break;
default:
  break;
}
if (err) {
  dev_err(&pdev->dev,
   "Invalid (reserved) pwm settings: 0x%02x, "
   "skipping fan %d\n",
   (data->pwm_enable >> (idx * 2)) & 3, idx + 1);
  return 0; /* This is a non fatal condition */
}

err = f71882fg_create_sysfs_files(pdev, &fxxxx_fan_attr[idx][0],
       ARRAY_SIZE(fxxxx_fan_attr[0]));
if (err)
  return err;

if (f71882fg_fan_has_beep[data->type]) {
  err = f71882fg_create_sysfs_files(pdev,
        &fxxxx_fan_beep_attr[idx],
        1);
  if (err)
   return err;
}

dev_info(&pdev->dev, "Fan: %d is in %s mode\n", idx + 1,
   (data->pwm_enable & (1 << (2 * idx))) ? "duty-cycle" : "RPM");

/* Check for unsupported auto pwm settings */
switch (data->type) {
case f71808e:
case f71808a:
case f71869:
case f71869a:
case f71889fg:
case f71889ed:
case f71889a:
  data->pwm_auto_point_mapping[idx] =
   f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(idx));
  if ((data->pwm_auto_point_mapping[idx] & 0x80) ||
      (data->pwm_auto_point_mapping[idx] & 3) == 0) {
   dev_warn(&pdev->dev,
     "Auto pwm controlled by raw digital "
     "data, disabling pwm auto_point "
     "sysfs attributes for fan %d\n", idx + 1);
   return 0; /* This is a non fatal condition */
  }
  break;
default:
  break;
}

switch (data->type) {
case f71862fg:
  err = f71882fg_create_sysfs_files(pdev,
     &f71862fg_auto_pwm_attr[idx][0],
     ARRAY_SIZE(f71862fg_auto_pwm_attr[0]));
  break;
case f71808e:
case f71869:
  err = f71882fg_create_sysfs_files(pdev,
     &f71869_auto_pwm_attr[idx][0],
     ARRAY_SIZE(f71869_auto_pwm_attr[0]));
  break;
case f8000:
  err = f71882fg_create_sysfs_files(pdev,
     &f8000_auto_pwm_attr[idx][0],
     ARRAY_SIZE(f8000_auto_pwm_attr[0]));
  break;
default:
  err = f71882fg_create_sysfs_files(pdev,
     &fxxxx_auto_pwm_attr[idx][0],
     ARRAY_SIZE(fxxxx_auto_pwm_attr[0]));
}

return err;
}

static void f71882fg_remove(struct platform_device *pdev)
{
struct f71882fg_data *data = platform_get_drvdata(pdev);
int nr_fans = f71882fg_nr_fans[data->type];
int nr_temps = f71882fg_nr_temps[data->type];
int i;
u8 start_reg = f71882fg_read8(data, F71882FG_REG_START);

if (data->hwmon_dev)
  hwmon_device_unregister(data->hwmon_dev);

device_remove_file(&pdev->dev, &dev_attr_name);

if (start_reg & 0x01) {
  switch (data->type) {
  case f71858fg:
   if (data->temp_config & 0x10)
    f71882fg_remove_sysfs_files(pdev,
     f8000_temp_attr,
     ARRAY_SIZE(f8000_temp_attr));
   else
    f71882fg_remove_sysfs_files(pdev,
     f71858fg_temp_attr,
     ARRAY_SIZE(f71858fg_temp_attr));
   break;
  case f8000:
   f71882fg_remove_sysfs_files(pdev,
     f8000_temp_attr,
     ARRAY_SIZE(f8000_temp_attr));
   break;
  case f81866a:
   f71882fg_remove_sysfs_files(pdev,
     f71858fg_temp_attr,
     ARRAY_SIZE(f71858fg_temp_attr));
   break;
  default:
   f71882fg_remove_sysfs_files(pdev,
    &fxxxx_temp_attr[0][0],
    ARRAY_SIZE(fxxxx_temp_attr[0]) * nr_temps);
  }
  if (f71882fg_temp_has_beep[data->type]) {
   if (data->type == f81866a)
    f71882fg_remove_sysfs_files(pdev,
     &f81866_temp_beep_attr[0][0],
     ARRAY_SIZE(f81866_temp_beep_attr[0])
      * nr_temps);
   else
    f71882fg_remove_sysfs_files(pdev,
     &fxxxx_temp_beep_attr[0][0],
     ARRAY_SIZE(fxxxx_temp_beep_attr[0])
      * nr_temps);
  }

  for (i = 0; i < F71882FG_MAX_INS; i++) {
   if (f71882fg_has_in[data->type][i]) {
    device_remove_file(&pdev->dev,
      &fxxxx_in_attr[i].dev_attr);
   }
  }
  if (f71882fg_has_in1_alarm[data->type]) {
   f71882fg_remove_sysfs_files(pdev,
     fxxxx_in1_alarm_attr,
     ARRAY_SIZE(fxxxx_in1_alarm_attr));
  }
}

if (start_reg & 0x02) {
  f71882fg_remove_sysfs_files(pdev, &fxxxx_fan_attr[0][0],
    ARRAY_SIZE(fxxxx_fan_attr[0]) * nr_fans);

  if (f71882fg_fan_has_beep[data->type]) {
   f71882fg_remove_sysfs_files(pdev,
     fxxxx_fan_beep_attr, nr_fans);
  }

  switch (data->type) {
  case f71808a:
   f71882fg_remove_sysfs_files(pdev,
    &fxxxx_auto_pwm_attr[0][0],
    ARRAY_SIZE(fxxxx_auto_pwm_attr[0]) * nr_fans);
   f71882fg_remove_sysfs_files(pdev,
     f71808a_fan3_attr,
     ARRAY_SIZE(f71808a_fan3_attr));
   break;
  case f71862fg:
   f71882fg_remove_sysfs_files(pdev,
    &f71862fg_auto_pwm_attr[0][0],
    ARRAY_SIZE(f71862fg_auto_pwm_attr[0]) *
     nr_fans);
   break;
  case f71808e:
  case f71869:
   f71882fg_remove_sysfs_files(pdev,
    &f71869_auto_pwm_attr[0][0],
    ARRAY_SIZE(f71869_auto_pwm_attr[0]) * nr_fans);
   break;
  case f8000:
   f71882fg_remove_sysfs_files(pdev,
     f8000_fan_attr,
     ARRAY_SIZE(f8000_fan_attr));
   f71882fg_remove_sysfs_files(pdev,
    &f8000_auto_pwm_attr[0][0],
    ARRAY_SIZE(f8000_auto_pwm_attr[0]) * nr_fans);
   break;
  default:
   f71882fg_remove_sysfs_files(pdev,
    &fxxxx_auto_pwm_attr[0][0],
    ARRAY_SIZE(fxxxx_auto_pwm_attr[0]) * nr_fans);
  }
}
}

static int f71882fg_probe(struct platform_device *pdev)
{
struct f71882fg_data *data;
struct f71882fg_sio_data *sio_data = dev_get_platdata(&pdev->dev);
int nr_fans = f71882fg_nr_fans[sio_data->type];
int nr_temps = f71882fg_nr_temps[sio_data->type];
int err, i;
int size;
u8 start_reg, reg;

data = devm_kzalloc(&pdev->dev, sizeof(struct f71882fg_data),
       GFP_KERNEL);
if (!data)
  return -ENOMEM;

data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
data->type = sio_data->type;
data->temp_start =
     (data->type == f71858fg || data->type == f8000 ||
  data->type == f81866a) ? 0 : 1;
mutex_init(&data->update_lock);
platform_set_drvdata(pdev, data);

start_reg = f71882fg_read8(data, F71882FG_REG_START);
if (start_reg & 0x04) {
  dev_warn(&pdev->dev, "Hardware monitor is powered down\n");
  return -ENODEV;
}
if (!(start_reg & 0x03)) {
  dev_warn(&pdev->dev, "Hardware monitoring not activated\n");
  return -ENODEV;
}

/* Register sysfs interface files */
err = device_create_file(&pdev->dev, &dev_attr_name);
if (err)
  goto exit_unregister_sysfs;

if (start_reg & 0x01) {
  switch (data->type) {
  case f71858fg:
   data->temp_config =
    f71882fg_read8(data, F71882FG_REG_TEMP_CONFIG);
   if (data->temp_config & 0x10)
    /*
* The f71858fg temperature alarms behave as
* the f8000 alarms in this mode
*/
    err = f71882fg_create_sysfs_files(pdev,
     f8000_temp_attr,
     ARRAY_SIZE(f8000_temp_attr));
   else
    err = f71882fg_create_sysfs_files(pdev,
     f71858fg_temp_attr,
     ARRAY_SIZE(f71858fg_temp_attr));
   break;
  case f8000:
   err = f71882fg_create_sysfs_files(pdev,
     f8000_temp_attr,
     ARRAY_SIZE(f8000_temp_attr));
   break;
  case f81866a:
   err = f71882fg_create_sysfs_files(pdev,
     f71858fg_temp_attr,
     ARRAY_SIZE(f71858fg_temp_attr));
   break;
  default:
   err = f71882fg_create_sysfs_files(pdev,
    &fxxxx_temp_attr[0][0],
    ARRAY_SIZE(fxxxx_temp_attr[0]) * nr_temps);
  }
  if (err)
   goto exit_unregister_sysfs;

  if (f71882fg_temp_has_beep[data->type]) {
   if (data->type == f81866a) {
    size = ARRAY_SIZE(f81866_temp_beep_attr[0]);
    err = f71882fg_create_sysfs_files(pdev,
      &f81866_temp_beep_attr[0][0],
      size * nr_temps);

   } else {
    size = ARRAY_SIZE(fxxxx_temp_beep_attr[0]);
    err = f71882fg_create_sysfs_files(pdev,
      &fxxxx_temp_beep_attr[0][0],
      size * nr_temps);
   }
   if (err)
    goto exit_unregister_sysfs;
  }

  for (i = 0; i < F71882FG_MAX_INS; i++) {
   if (f71882fg_has_in[data->type][i]) {
    err = device_create_file(&pdev->dev,
      &fxxxx_in_attr[i].dev_attr);
    if (err)
     goto exit_unregister_sysfs;
   }
  }
  if (f71882fg_has_in1_alarm[data->type]) {
   err = f71882fg_create_sysfs_files(pdev,
     fxxxx_in1_alarm_attr,
     ARRAY_SIZE(fxxxx_in1_alarm_attr));
   if (err)
    goto exit_unregister_sysfs;
  }
}

if (start_reg & 0x02) {
  switch (data->type) {
  case f71808e:
  case f71808a:
  case f71869:
  case f71869a:
   /* These always have signed auto point temps */
   data->auto_point_temp_signed = 1;
   fallthrough; /* to select correct fan/pwm reg bank! */
  case f71889fg:
  case f71889ed:
  case f71889a:
   reg = f71882fg_read8(data, F71882FG_REG_FAN_FAULT_T);
   if (reg & F71882FG_FAN_NEG_TEMP_EN)
    data->auto_point_temp_signed = 1;
   /* Ensure banked pwm registers point to right bank */
   reg &= ~F71882FG_FAN_PROG_SEL;
   f71882fg_write8(data, F71882FG_REG_FAN_FAULT_T, reg);
   break;
  default:
   break;
  }

  data->pwm_enable =
   f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);

  for (i = 0; i < nr_fans; i++) {
   err = f71882fg_create_fan_sysfs_files(pdev, i);
   if (err)
    goto exit_unregister_sysfs;
  }

  /* Some types have 1 extra fan with limited functionality */
  switch (data->type) {
  case f71808a:
   err = f71882fg_create_sysfs_files(pdev,
     f71808a_fan3_attr,
     ARRAY_SIZE(f71808a_fan3_attr));
   break;
  case f8000:
   err = f71882fg_create_sysfs_files(pdev,
     f8000_fan_attr,
     ARRAY_SIZE(f8000_fan_attr));
   break;
  default:
   break;
  }
  if (err)
   goto exit_unregister_sysfs;
}

data->hwmon_dev = hwmon_device_register(&pdev->dev);
if (IS_ERR(data->hwmon_dev)) {
  err = PTR_ERR(data->hwmon_dev);
  data->hwmon_dev = NULL;
  goto exit_unregister_sysfs;
}

return 0;

exit_unregister_sysfs:
f71882fg_remove(pdev); /* Will unregister the sysfs files for us */
return err; /* f71882fg_remove() also frees our data */
}

static int __init f71882fg_find(int sioaddr, struct f71882fg_sio_data *sio_data)
{
u16 devid;
unsigned short address;
int err = superio_enter(sioaddr);
if (err)
  return err;

devid = superio_inw(sioaddr, SIO_REG_MANID);
if (devid != SIO_FINTEK_ID) {
  pr_debug("Not a Fintek device\n");
  err = -ENODEV;
  goto exit;
}

devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
switch (devid) {
case SIO_F71808E_ID:
  sio_data->type = f71808e;
  break;
case SIO_F71808A_ID:
  sio_data->type = f71808a;
  break;
case SIO_F71858_ID:
case SIO_F71858AD_ID:
  sio_data->type = f71858fg;
  break;
case SIO_F71862_ID:
  sio_data->type = f71862fg;
  break;
case SIO_F71868_ID:
  sio_data->type = f71868a;
  break;
case SIO_F71869_ID:
  sio_data->type = f71869;
  break;
case SIO_F71869A_ID:
  sio_data->type = f71869a;
  break;
case SIO_F71882_ID:
  sio_data->type = f71882fg;
  break;
case SIO_F71889_ID:
  sio_data->type = f71889fg;
  break;
case SIO_F71889E_ID:
  sio_data->type = f71889ed;
  break;
case SIO_F71889A_ID:
  sio_data->type = f71889a;
  break;
case SIO_F8000_ID:
  sio_data->type = f8000;
  break;
case SIO_F81768D_ID:
  sio_data->type = f81768d;
  break;
case SIO_F81865_ID:
  sio_data->type = f81865f;
  break;
case SIO_F81866_ID:
case SIO_F81966_ID:
  sio_data->type = f81866a;
  break;
default:
  pr_info("Unsupported Fintek device: %04x\n",
   (unsigned int)devid);
  err = -ENODEV;
  goto exit;
}

if (sio_data->type == f71858fg)
  superio_select(sioaddr, SIO_F71858FG_LD_HWM);
else
  superio_select(sioaddr, SIO_F71882FG_LD_HWM);

if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
  pr_warn("Device not activated\n");
  err = -ENODEV;
  goto exit;
}

address = superio_inw(sioaddr, SIO_REG_ADDR);
if (address == 0) {
  pr_warn("Base address not set\n");
  err = -ENODEV;
  goto exit;
}
address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */

err = address;
pr_info("Found %s chip at %#x, revision %d\n",
  f71882fg_names[sio_data->type], (unsigned int)address,
  (int)superio_inb(sioaddr, SIO_REG_DEVREV));
exit:
superio_exit(sioaddr);
return err;
}

static int __init f71882fg_device_add(int address,
          const struct f71882fg_sio_data *sio_data)
{
struct resource res = {
  .start = address,
  .end = address + REGION_LENGTH - 1,
  .flags = IORESOURCE_IO,
};
int err;

f71882fg_pdev = platform_device_alloc(DRVNAME, address);
if (!f71882fg_pdev)
  return -ENOMEM;

res.name = f71882fg_pdev->name;
err = acpi_check_resource_conflict(&res);
if (err)
  goto exit_device_put;

err = platform_device_add_resources(f71882fg_pdev, &res, 1);
if (err) {
  pr_err("Device resource addition failed\n");
  goto exit_device_put;
}

err = platform_device_add_data(f71882fg_pdev, sio_data,
           sizeof(struct f71882fg_sio_data));
if (err) {
  pr_err("Platform data allocation failed\n");
  goto exit_device_put;
}

err = platform_device_add(f71882fg_pdev);
if (err) {
  pr_err("Device addition failed\n");
  goto exit_device_put;
}

return 0;

exit_device_put:
platform_device_put(f71882fg_pdev);

return err;
}

static struct platform_driver f71882fg_driver = {
.driver = {
  .name = DRVNAME,
},
.probe  = f71882fg_probe,
.remove  = f71882fg_remove,
};

static int __init f71882fg_init(void)
{
int err;
int address;
struct f71882fg_sio_data sio_data;

memset(&sio_data, 0, sizeof(sio_data));

address = f71882fg_find(0x2e, &sio_data);
if (address < 0)
  address = f71882fg_find(0x4e, &sio_data);
if (address < 0)
  return address;

err = platform_driver_register(&f71882fg_driver);
if (err)
  return err;

err = f71882fg_device_add(address, &sio_data);
if (err)
  goto exit_driver;

return 0;

exit_driver:
platform_driver_unregister(&f71882fg_driver);
return err;
}

static void __exit f71882fg_exit(void)
{
platform_device_unregister(f71882fg_pdev);
platform_driver_unregister(&f71882fg_driver);
}

MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver");
MODULE_AUTHOR("Hans Edgington, Hans de Goede <hdegoede@redhat.com>");
MODULE_LICENSE("GPL");

module_init(f71882fg_init);
module_exit(f71882fg_exit);

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