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aha/drivers/hwmon/adt7475.c
Jean Delvare 0f14480b62 hwmon: (adt7475) Move sysfs files removal to a separate function 
Move sysfs files removal to a separate function. The code is common to
the device probing error path and the standard device removal path. As
it will grow with future driver development, this avoids code
duplication.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Jordan Crouse <jordan@cosmicpenguin.net>
Cc: "Darrick J. Wong" <djwong@us.ibm.com>
2009-12-09 20:36:06 +01:00

1382 lines
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/*
* adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives
* Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
* Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
* Copyright (C) 2009 Jean Delvare <khali@linux-fr.org>
*
* Derived from the lm83 driver by Jean Delvare
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
/* Indexes for the sysfs hooks */
#define INPUT 0
#define MIN 1
#define MAX 2
#define CONTROL 3
#define OFFSET 3
#define AUTOMIN 4
#define THERM 5
#define HYSTERSIS 6
/* These are unique identifiers for the sysfs functions - unlike the
numbers above, these are not also indexes into an array
*/
#define ALARM 9
#define FAULT 10
/* 7475 Common Registers */
#define REG_VTT 0x1E /* ADT7490 only */
#define REG_EXTEND3 0x1F /* ADT7490 only */
#define REG_VOLTAGE_BASE 0x20
#define REG_TEMP_BASE 0x25
#define REG_TACH_BASE 0x28
#define REG_PWM_BASE 0x30
#define REG_PWM_MAX_BASE 0x38
#define REG_DEVID 0x3D
#define REG_VENDID 0x3E
#define REG_DEVID2 0x3F
#define REG_STATUS1 0x41
#define REG_STATUS2 0x42
#define REG_VOLTAGE_MIN_BASE 0x44
#define REG_VOLTAGE_MAX_BASE 0x45
#define REG_TEMP_MIN_BASE 0x4E
#define REG_TEMP_MAX_BASE 0x4F
#define REG_TACH_MIN_BASE 0x54
#define REG_PWM_CONFIG_BASE 0x5C
#define REG_TEMP_TRANGE_BASE 0x5F
#define REG_PWM_MIN_BASE 0x64
#define REG_TEMP_TMIN_BASE 0x67
#define REG_TEMP_THERM_BASE 0x6A
#define REG_REMOTE1_HYSTERSIS 0x6D
#define REG_REMOTE2_HYSTERSIS 0x6E
#define REG_TEMP_OFFSET_BASE 0x70
#define REG_EXTEND1 0x76
#define REG_EXTEND2 0x77
#define REG_CONFIG5 0x7C
#define REG_CONFIG4 0x7D
#define REG_STATUS4 0x81 /* ADT7490 only */
#define REG_VTT_MIN 0x84 /* ADT7490 only */
#define REG_VTT_MAX 0x86 /* ADT7490 only */
#define CONFIG4_MAXDUTY 0x08
#define CONFIG5_TWOSCOMP 0x01
#define CONFIG5_TEMPOFFSET 0x02
/* ADT7475 Settings */
#define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
#define ADT7475_TEMP_COUNT 3
#define ADT7475_TACH_COUNT 4
#define ADT7475_PWM_COUNT 3
/* Macro to read the registers */
#define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg))
/* Macros to easily index the registers */
#define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2))
#define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2))
#define PWM_REG(idx) (REG_PWM_BASE + (idx))
#define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx))
#define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx))
#define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx))
#define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx))
#define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2))
#define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2))
#define TEMP_REG(idx) (REG_TEMP_BASE + (idx))
#define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2))
#define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2))
#define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx))
#define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx))
#define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
#define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
I2C_CLIENT_INSMOD_3(adt7473, adt7475, adt7490);
static const struct i2c_device_id adt7475_id[] = {
{ "adt7473", adt7473 },
{ "adt7475", adt7475 },
{ "adt7490", adt7490 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adt7475_id);
struct adt7475_data {
struct device *hwmon_dev;
struct mutex lock;
unsigned long measure_updated;
unsigned long limits_updated;
char valid;
u8 config4;
u8 config5;
u8 has_voltage;
u32 alarms;
u16 voltage[3][6];
u16 temp[7][3];
u16 tach[2][4];
u8 pwm[4][3];
u8 range[3];
u8 pwmctl[3];
u8 pwmchan[3];
};
static struct i2c_driver adt7475_driver;
static struct adt7475_data *adt7475_update_device(struct device *dev);
static void adt7475_read_hystersis(struct i2c_client *client);
static void adt7475_read_pwm(struct i2c_client *client, int index);
/* Given a temp value, convert it to register value */
static inline u16 temp2reg(struct adt7475_data *data, long val)
{
u16 ret;
if (!(data->config5 & CONFIG5_TWOSCOMP)) {
val = SENSORS_LIMIT(val, -64000, 191000);
ret = (val + 64500) / 1000;
} else {
val = SENSORS_LIMIT(val, -128000, 127000);
if (val < -500)
ret = (256500 + val) / 1000;
else
ret = (val + 500) / 1000;
}
return ret << 2;
}
/* Given a register value, convert it to a real temp value */
static inline int reg2temp(struct adt7475_data *data, u16 reg)
{
if (data->config5 & CONFIG5_TWOSCOMP) {
if (reg >= 512)
return (reg - 1024) * 250;
else
return reg * 250;
} else
return (reg - 256) * 250;
}
static inline int tach2rpm(u16 tach)
{
if (tach == 0 || tach == 0xFFFF)
return 0;
return (90000 * 60) / tach;
}
static inline u16 rpm2tach(unsigned long rpm)
{
if (rpm == 0)
return 0;
return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF);
}
/* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = {
{ 45, 94 }, /* +2.5V */
{ 175, 525 }, /* Vccp */
{ 68, 71 }, /* Vcc */
{ 93, 47 }, /* +5V */
{ 120, 20 }, /* +12V */
{ 45, 45 }, /* Vtt */
};
static inline int reg2volt(int channel, u16 reg)
{
const int *r = adt7473_in_scaling[channel];
return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024);
}
static inline u16 volt2reg(int channel, long volt)
{
const int *r = adt7473_in_scaling[channel];
long reg;
reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
return SENSORS_LIMIT(reg, 0, 1023) & (0xff << 2);
}
static u16 adt7475_read_word(struct i2c_client *client, int reg)
{
u16 val;
val = i2c_smbus_read_byte_data(client, reg);
val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8);
return val;
}
static void adt7475_write_word(struct i2c_client *client, int reg, u16 val)
{
i2c_smbus_write_byte_data(client, reg + 1, val >> 8);
i2c_smbus_write_byte_data(client, reg, val & 0xFF);
}
/* Find the nearest value in a table - used for pwm frequency and
auto temp range */
static int find_nearest(long val, const int *array, int size)
{
int i;
if (val < array[0])
return 0;
if (val > array[size - 1])
return size - 1;
for (i = 0; i < size - 1; i++) {
int a, b;
if (val > array[i + 1])
continue;
a = val - array[i];
b = array[i + 1] - val;
return (a <= b) ? i : i + 1;
}
return 0;
}
static ssize_t show_voltage(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
unsigned short val;
switch (sattr->nr) {
case ALARM:
return sprintf(buf, "%d\n",
(data->alarms >> sattr->index) & 1);
default:
val = data->voltage[sattr->nr][sattr->index];
return sprintf(buf, "%d\n", reg2volt(sattr->index, val));
}
}
static ssize_t set_voltage(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
unsigned char reg;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
data->voltage[sattr->nr][sattr->index] = volt2reg(sattr->index, val);
if (sattr->index < ADT7475_VOLTAGE_COUNT) {
if (sattr->nr == MIN)
reg = VOLTAGE_MIN_REG(sattr->index);
else
reg = VOLTAGE_MAX_REG(sattr->index);
} else {
if (sattr->nr == MIN)
reg = REG_VTT_MIN;
else
reg = REG_VTT_MAX;
}
i2c_smbus_write_byte_data(client, reg,
data->voltage[sattr->nr][sattr->index] >> 2);
mutex_unlock(&data->lock);
return count;
}
static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int out;
switch (sattr->nr) {
case HYSTERSIS:
mutex_lock(&data->lock);
out = data->temp[sattr->nr][sattr->index];
if (sattr->index != 1)
out = (out >> 4) & 0xF;
else
out = (out & 0xF);
/* Show the value as an absolute number tied to
* THERM */
out = reg2temp(data, data->temp[THERM][sattr->index]) -
out * 1000;
mutex_unlock(&data->lock);
break;
case OFFSET:
/* Offset is always 2's complement, regardless of the
* setting in CONFIG5 */
mutex_lock(&data->lock);
out = (s8)data->temp[sattr->nr][sattr->index];
if (data->config5 & CONFIG5_TEMPOFFSET)
out *= 1000;
else
out *= 500;
mutex_unlock(&data->lock);
break;
case ALARM:
out = (data->alarms >> (sattr->index + 4)) & 1;
break;
case FAULT:
/* Note - only for remote1 and remote2 */
out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000));
break;
default:
/* All other temp values are in the configured format */
out = reg2temp(data, data->temp[sattr->nr][sattr->index]);
}
return sprintf(buf, "%d\n", out);
}
static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
unsigned char reg = 0;
u8 out;
int temp;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
/* We need the config register in all cases for temp <-> reg conv. */
data->config5 = adt7475_read(REG_CONFIG5);
switch (sattr->nr) {
case OFFSET:
if (data->config5 & CONFIG5_TEMPOFFSET) {
val = SENSORS_LIMIT(val, -63000, 127000);
out = data->temp[OFFSET][sattr->index] = val / 1000;
} else {
val = SENSORS_LIMIT(val, -63000, 64000);
out = data->temp[OFFSET][sattr->index] = val / 500;
}
break;
case HYSTERSIS:
/* The value will be given as an absolute value, turn it
into an offset based on THERM */
/* Read fresh THERM and HYSTERSIS values from the chip */
data->temp[THERM][sattr->index] =
adt7475_read(TEMP_THERM_REG(sattr->index)) << 2;
adt7475_read_hystersis(client);
temp = reg2temp(data, data->temp[THERM][sattr->index]);
val = SENSORS_LIMIT(val, temp - 15000, temp);
val = (temp - val) / 1000;
if (sattr->index != 1) {
data->temp[HYSTERSIS][sattr->index] &= 0xF0;
data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4;
} else {
data->temp[HYSTERSIS][sattr->index] &= 0x0F;
data->temp[HYSTERSIS][sattr->index] |= (val & 0xF);
}
out = data->temp[HYSTERSIS][sattr->index];
break;
default:
data->temp[sattr->nr][sattr->index] = temp2reg(data, val);
/* We maintain an extra 2 digits of precision for simplicity
* - shift those back off before writing the value */
out = (u8) (data->temp[sattr->nr][sattr->index] >> 2);
}
switch (sattr->nr) {
case MIN:
reg = TEMP_MIN_REG(sattr->index);
break;
case MAX:
reg = TEMP_MAX_REG(sattr->index);
break;
case OFFSET:
reg = TEMP_OFFSET_REG(sattr->index);
break;
case AUTOMIN:
reg = TEMP_TMIN_REG(sattr->index);
break;
case THERM:
reg = TEMP_THERM_REG(sattr->index);
break;
case HYSTERSIS:
if (sattr->index != 2)
reg = REG_REMOTE1_HYSTERSIS;
else
reg = REG_REMOTE2_HYSTERSIS;
break;
}
i2c_smbus_write_byte_data(client, reg, out);
mutex_unlock(&data->lock);
return count;
}
/* Table of autorange values - the user will write the value in millidegrees,
and we'll convert it */
static const int autorange_table[] = {
2000, 2500, 3330, 4000, 5000, 6670, 8000,
10000, 13330, 16000, 20000, 26670, 32000, 40000,
53330, 80000
};
static ssize_t show_point2(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int out, val;
mutex_lock(&data->lock);
out = (data->range[sattr->index] >> 4) & 0x0F;
val = reg2temp(data, data->temp[AUTOMIN][sattr->index]);
mutex_unlock(&data->lock);
return sprintf(buf, "%d\n", val + autorange_table[out]);
}
static ssize_t set_point2(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int temp;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
/* Get a fresh copy of the needed registers */
data->config5 = adt7475_read(REG_CONFIG5);
data->temp[AUTOMIN][sattr->index] =
adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2;
data->range[sattr->index] =
adt7475_read(TEMP_TRANGE_REG(sattr->index));
/* The user will write an absolute value, so subtract the start point
to figure the range */
temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]);
val = SENSORS_LIMIT(val, temp + autorange_table[0],
temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]);
val -= temp;
/* Find the nearest table entry to what the user wrote */
val = find_nearest(val, autorange_table, ARRAY_SIZE(autorange_table));
data->range[sattr->index] &= ~0xF0;
data->range[sattr->index] |= val << 4;
i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
data->range[sattr->index]);
mutex_unlock(&data->lock);
return count;
}
static ssize_t show_tach(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int out;
if (sattr->nr == ALARM)
out = (data->alarms >> (sattr->index + 10)) & 1;
else
out = tach2rpm(data->tach[sattr->nr][sattr->index]);
return sprintf(buf, "%d\n", out);
}
static ssize_t set_tach(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
unsigned long val;
if (strict_strtoul(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
data->tach[MIN][sattr->index] = rpm2tach(val);
adt7475_write_word(client, TACH_MIN_REG(sattr->index),
data->tach[MIN][sattr->index]);
mutex_unlock(&data->lock);
return count;
}
static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]);
}
static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
return sprintf(buf, "%d\n", data->pwmchan[sattr->index]);
}
static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
return sprintf(buf, "%d\n", data->pwmctl[sattr->index]);
}
static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
unsigned char reg = 0;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
switch (sattr->nr) {
case INPUT:
/* Get a fresh value for CONTROL */
data->pwm[CONTROL][sattr->index] =
adt7475_read(PWM_CONFIG_REG(sattr->index));
/* If we are not in manual mode, then we shouldn't allow
* the user to set the pwm speed */
if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) {
mutex_unlock(&data->lock);
return count;
}
reg = PWM_REG(sattr->index);
break;
case MIN:
reg = PWM_MIN_REG(sattr->index);
break;
case MAX:
reg = PWM_MAX_REG(sattr->index);
break;
}
data->pwm[sattr->nr][sattr->index] = SENSORS_LIMIT(val, 0, 0xFF);
i2c_smbus_write_byte_data(client, reg,
data->pwm[sattr->nr][sattr->index]);
mutex_unlock(&data->lock);
return count;
}
/* Called by set_pwmctrl and set_pwmchan */
static int hw_set_pwm(struct i2c_client *client, int index,
unsigned int pwmctl, unsigned int pwmchan)
{
struct adt7475_data *data = i2c_get_clientdata(client);
long val = 0;
switch (pwmctl) {
case 0:
val = 0x03; /* Run at full speed */
break;
case 1:
val = 0x07; /* Manual mode */
break;
case 2:
switch (pwmchan) {
case 1:
/* Remote1 controls PWM */
val = 0x00;
break;
case 2:
/* local controls PWM */
val = 0x01;
break;
case 4:
/* remote2 controls PWM */
val = 0x02;
break;
case 6:
/* local/remote2 control PWM */
val = 0x05;
break;
case 7:
/* All three control PWM */
val = 0x06;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
data->pwmctl[index] = pwmctl;
data->pwmchan[index] = pwmchan;
data->pwm[CONTROL][index] &= ~0xE0;
data->pwm[CONTROL][index] |= (val & 7) << 5;
i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
data->pwm[CONTROL][index]);
return 0;
}
static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
int r;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
/* Read Modify Write PWM values */
adt7475_read_pwm(client, sattr->index);
r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val);
if (r)
count = r;
mutex_unlock(&data->lock);
return count;
}
static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
int r;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
mutex_lock(&data->lock);
/* Read Modify Write PWM values */
adt7475_read_pwm(client, sattr->index);
r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]);
if (r)
count = r;
mutex_unlock(&data->lock);
return count;
}
/* List of frequencies for the PWM */
static const int pwmfreq_table[] = {
11, 14, 22, 29, 35, 44, 58, 88
};
static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
return sprintf(buf, "%d\n",
pwmfreq_table[data->range[sattr->index] & 7]);
}
static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
int out;
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
out = find_nearest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table));
mutex_lock(&data->lock);
data->range[sattr->index] =
adt7475_read(TEMP_TRANGE_REG(sattr->index));
data->range[sattr->index] &= ~7;
data->range[sattr->index] |= out;
i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
data->range[sattr->index]);
mutex_unlock(&data->lock);
return count;
}
static ssize_t show_pwm_at_crit(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct adt7475_data *data = adt7475_update_device(dev);
return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY));
}
static ssize_t set_pwm_at_crit(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
long val;
if (strict_strtol(buf, 10, &val))
return -EINVAL;
if (val != 0 && val != 1)
return -EINVAL;
mutex_lock(&data->lock);
data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4);
if (val)
data->config4 |= CONFIG4_MAXDUTY;
else
data->config4 &= ~CONFIG4_MAXDUTY;
i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4);
mutex_unlock(&data->lock);
return count;
}
static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 0);
static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 0);
static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 1);
static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 1);
static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 2);
static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 2);
static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2);
static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3);
static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 3);
static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 3);
static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3);
static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4);
static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 4);
static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 4);
static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8);
static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5);
static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 5);
static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 5);
static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31);
static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0);
static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0);
static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
MAX, 0);
static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
MIN, 0);
static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
set_temp, OFFSET, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR,
show_temp, set_temp, AUTOMIN, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR,
show_point2, set_point2, 0, 0);
static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
THERM, 0);
static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
set_temp, HYSTERSIS, 0);
static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1);
static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
MAX, 1);
static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
MIN, 1);
static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
set_temp, OFFSET, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR,
show_temp, set_temp, AUTOMIN, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR,
show_point2, set_point2, 0, 1);
static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
THERM, 1);
static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
set_temp, HYSTERSIS, 1);
static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2);
static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2);
static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
MAX, 2);
static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
MIN, 2);
static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
set_temp, OFFSET, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR,
show_temp, set_temp, AUTOMIN, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR,
show_point2, set_point2, 0, 2);
static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
THERM, 2);
static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
set_temp, HYSTERSIS, 2);
static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
MIN, 0);
static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0);
static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
MIN, 1);
static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1);
static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
MIN, 2);
static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2);
static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3);
static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
MIN, 3);
static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3);
static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
0);
static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
set_pwmfreq, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
set_pwmctrl, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
show_pwmchan, set_pwmchan, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MIN, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MAX, 0);
static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
1);
static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
set_pwmfreq, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
set_pwmctrl, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
show_pwmchan, set_pwmchan, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MIN, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MAX, 1);
static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
2);
static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
set_pwmfreq, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
set_pwmctrl, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
show_pwmchan, set_pwmchan, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MIN, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MAX, 2);
/* Non-standard name, might need revisiting */
static DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
show_pwm_at_crit, set_pwm_at_crit);
static struct attribute *adt7475_attrs[] = {
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in1_max.dev_attr.attr,
&sensor_dev_attr_in1_min.dev_attr.attr,
&sensor_dev_attr_in1_alarm.dev_attr.attr,
&sensor_dev_attr_in2_input.dev_attr.attr,
&sensor_dev_attr_in2_max.dev_attr.attr,
&sensor_dev_attr_in2_min.dev_attr.attr,
&sensor_dev_attr_in2_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_fault.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_offset.dev_attr.attr,
&sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
&sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_offset.dev_attr.attr,
&sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
&sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp3_fault.dev_attr.attr,
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_offset.dev_attr.attr,
&sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
&sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_temp3_crit.dev_attr.attr,
&sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
&sensor_dev_attr_fan1_alarm.dev_attr.attr,
&sensor_dev_attr_fan2_input.dev_attr.attr,
&sensor_dev_attr_fan2_min.dev_attr.attr,
&sensor_dev_attr_fan2_alarm.dev_attr.attr,
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
&sensor_dev_attr_fan4_input.dev_attr.attr,
&sensor_dev_attr_fan4_min.dev_attr.attr,
&sensor_dev_attr_fan4_alarm.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_freq.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_freq.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
&dev_attr_pwm_use_point2_pwm_at_crit.attr,
NULL,
};
/* Attributes specific to the ADT7490 */
static struct attribute *adt7490_attrs[] = {
&sensor_dev_attr_in0_input.dev_attr.attr,
&sensor_dev_attr_in0_max.dev_attr.attr,
&sensor_dev_attr_in0_min.dev_attr.attr,
&sensor_dev_attr_in0_alarm.dev_attr.attr,
&sensor_dev_attr_in3_input.dev_attr.attr,
&sensor_dev_attr_in3_max.dev_attr.attr,
&sensor_dev_attr_in3_min.dev_attr.attr,
&sensor_dev_attr_in3_alarm.dev_attr.attr,
&sensor_dev_attr_in4_input.dev_attr.attr,
&sensor_dev_attr_in4_max.dev_attr.attr,
&sensor_dev_attr_in4_min.dev_attr.attr,
&sensor_dev_attr_in4_alarm.dev_attr.attr,
&sensor_dev_attr_in5_input.dev_attr.attr,
&sensor_dev_attr_in5_max.dev_attr.attr,
&sensor_dev_attr_in5_min.dev_attr.attr,
&sensor_dev_attr_in5_alarm.dev_attr.attr,
NULL
};
static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
static struct attribute_group adt7490_attr_group = { .attrs = adt7490_attrs };
static int adt7475_detect(struct i2c_client *client, int kind,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
int vendid, devid, devid2;
const char *name;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
vendid = adt7475_read(REG_VENDID);
devid2 = adt7475_read(REG_DEVID2);
if (vendid != 0x41 || /* Analog Devices */
(devid2 & 0xf8) != 0x68)
return -ENODEV;
devid = adt7475_read(REG_DEVID);
if (devid == 0x73)
name = "adt7473";
else if (devid == 0x75 && client->addr == 0x2e)
name = "adt7475";
else if ((devid2 & 0xfc) == 0x6c)
name = "adt7490";
else {
dev_dbg(&adapter->dev,
"Couldn't detect an ADT7473/75/90 part at "
"0x%02x\n", (unsigned int)client->addr);
return -ENODEV;
}
strlcpy(info->type, name, I2C_NAME_SIZE);
return 0;
}
static void adt7475_remove_files(struct i2c_client *client,
struct adt7475_data *data)
{
sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
if (data->has_voltage & 0x39)
sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group);
}
static int adt7475_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct adt7475_data *data;
int i, ret = 0;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
mutex_init(&data->lock);
i2c_set_clientdata(client, data);
/* Initialize device-specific values */
switch (id->driver_data) {
case adt7490:
data->has_voltage = 0x3f; /* in0 to in5 */
break;
default:
data->has_voltage = 0x06; /* in1, in2 */
}
/* Call adt7475_read_pwm for all pwm's as this will reprogram any
pwm's which are disabled to manual mode with 0% duty cycle */
for (i = 0; i < ADT7475_PWM_COUNT; i++)
adt7475_read_pwm(client, i);
ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group);
if (ret)
goto efree;
if (id->driver_data == adt7490) {
ret = sysfs_create_group(&client->dev.kobj,
&adt7490_attr_group);
if (ret)
goto eremove;
}
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
ret = PTR_ERR(data->hwmon_dev);
goto eremove;
}
return 0;
eremove:
adt7475_remove_files(client, data);
efree:
kfree(data);
return ret;
}
static int adt7475_remove(struct i2c_client *client)
{
struct adt7475_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
adt7475_remove_files(client, data);
kfree(data);
return 0;
}
static struct i2c_driver adt7475_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "adt7475",
},
.probe = adt7475_probe,
.remove = adt7475_remove,
.id_table = adt7475_id,
.detect = adt7475_detect,
.address_data = &addr_data,
};
static void adt7475_read_hystersis(struct i2c_client *client)
{
struct adt7475_data *data = i2c_get_clientdata(client);
data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS);
data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0];
data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS);
}
static void adt7475_read_pwm(struct i2c_client *client, int index)
{
struct adt7475_data *data = i2c_get_clientdata(client);
unsigned int v;
data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index));
/* Figure out the internal value for pwmctrl and pwmchan
based on the current settings */
v = (data->pwm[CONTROL][index] >> 5) & 7;
if (v == 3)
data->pwmctl[index] = 0;
else if (v == 7)
data->pwmctl[index] = 1;
else if (v == 4) {
/* The fan is disabled - we don't want to
support that, so change to manual mode and
set the duty cycle to 0 instead
*/
data->pwm[INPUT][index] = 0;
data->pwm[CONTROL][index] &= ~0xE0;
data->pwm[CONTROL][index] |= (7 << 5);
i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
data->pwm[INPUT][index]);
i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
data->pwm[CONTROL][index]);
data->pwmctl[index] = 1;
} else {
data->pwmctl[index] = 2;
switch (v) {
case 0:
data->pwmchan[index] = 1;
break;
case 1:
data->pwmchan[index] = 2;
break;
case 2:
data->pwmchan[index] = 4;
break;
case 5:
data->pwmchan[index] = 6;
break;
case 6:
data->pwmchan[index] = 7;
break;
}
}
}
static struct adt7475_data *adt7475_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
u16 ext;
int i;
mutex_lock(&data->lock);
/* Measurement values update every 2 seconds */
if (time_after(jiffies, data->measure_updated + HZ * 2) ||
!data->valid) {
data->alarms = adt7475_read(REG_STATUS2) << 8;
data->alarms |= adt7475_read(REG_STATUS1);
ext = (adt7475_read(REG_EXTEND2) << 8) |
adt7475_read(REG_EXTEND1);
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
if (!(data->has_voltage & (1 << i)))
continue;
data->voltage[INPUT][i] =
(adt7475_read(VOLTAGE_REG(i)) << 2) |
((ext >> (i * 2)) & 3);
}
for (i = 0; i < ADT7475_TEMP_COUNT; i++)
data->temp[INPUT][i] =
(adt7475_read(TEMP_REG(i)) << 2) |
((ext >> ((i + 5) * 2)) & 3);
if (data->has_voltage & (1 << 5)) {
data->alarms |= adt7475_read(REG_STATUS4) << 24;
ext = adt7475_read(REG_EXTEND3);
data->voltage[INPUT][5] = adt7475_read(REG_VTT) << 2 |
((ext >> 4) & 3);
}
for (i = 0; i < ADT7475_TACH_COUNT; i++)
data->tach[INPUT][i] =
adt7475_read_word(client, TACH_REG(i));
/* Updated by hw when in auto mode */
for (i = 0; i < ADT7475_PWM_COUNT; i++)
data->pwm[INPUT][i] = adt7475_read(PWM_REG(i));
data->measure_updated = jiffies;
}
/* Limits and settings, should never change update every 60 seconds */
if (time_after(jiffies, data->limits_updated + HZ * 60) ||
!data->valid) {
data->config4 = adt7475_read(REG_CONFIG4);
data->config5 = adt7475_read(REG_CONFIG5);
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
if (!(data->has_voltage & (1 << i)))
continue;
/* Adjust values so they match the input precision */
data->voltage[MIN][i] =
adt7475_read(VOLTAGE_MIN_REG(i)) << 2;
data->voltage[MAX][i] =
adt7475_read(VOLTAGE_MAX_REG(i)) << 2;
}
if (data->has_voltage & (1 << 5)) {
data->voltage[MIN][5] = adt7475_read(REG_VTT_MIN) << 2;
data->voltage[MAX][5] = adt7475_read(REG_VTT_MAX) << 2;
}
for (i = 0; i < ADT7475_TEMP_COUNT; i++) {
/* Adjust values so they match the input precision */
data->temp[MIN][i] =
adt7475_read(TEMP_MIN_REG(i)) << 2;
data->temp[MAX][i] =
adt7475_read(TEMP_MAX_REG(i)) << 2;
data->temp[AUTOMIN][i] =
adt7475_read(TEMP_TMIN_REG(i)) << 2;
data->temp[THERM][i] =
adt7475_read(TEMP_THERM_REG(i)) << 2;
data->temp[OFFSET][i] =
adt7475_read(TEMP_OFFSET_REG(i));
}
adt7475_read_hystersis(client);
for (i = 0; i < ADT7475_TACH_COUNT; i++)
data->tach[MIN][i] =
adt7475_read_word(client, TACH_MIN_REG(i));
for (i = 0; i < ADT7475_PWM_COUNT; i++) {
data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i));
data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i));
/* Set the channel and control information */
adt7475_read_pwm(client, i);
}
data->range[0] = adt7475_read(TEMP_TRANGE_REG(0));
data->range[1] = adt7475_read(TEMP_TRANGE_REG(1));
data->range[2] = adt7475_read(TEMP_TRANGE_REG(2));
data->limits_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->lock);
return data;
}
static int __init sensors_adt7475_init(void)
{
return i2c_add_driver(&adt7475_driver);
}
static void __exit sensors_adt7475_exit(void)
{
i2c_del_driver(&adt7475_driver);
}
MODULE_AUTHOR("Advanced Micro Devices, Inc");
MODULE_DESCRIPTION("adt7475 driver");
MODULE_LICENSE("GPL");
module_init(sensors_adt7475_init);
module_exit(sensors_adt7475_exit);
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