Commit 7e92214b authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  hwmon: (abituguru3) Fix CONFIG_DMI=n fallback to probe
  hwmon: (abituguru3) Enable DMI probing feature on IN9 32X MAX
  hwmon: (abituguru3) Match partial DMI board name strings
  hwmon: Add a driver for the ADT7475 hardware monitoring chip
  hwmon: (k8temp) Fix temperature reporting for (most) K8 RevG CPUs
  hwmon: (k8temp) Fix wrong sensor selection for AMD K8 RevF/RevG CPUs
  hwmon: (k8temp) Warn about fam F rev F errata
parents 6364853d 46a5f173
This describes the interface for the ADT7475 driver:
(there are 4 fans, numbered fan1 to fan4):
fanX_input Read the current speed of the fan (in RPMs)
fanX_min Read/write the minimum speed of the fan. Dropping
below this sets an alarm.
(there are three PWMs, numbered pwm1 to pwm3):
pwmX Read/write the current duty cycle of the PWM. Writes
only have effect when auto mode is turned off (see
below). Range is 0 - 255.
pwmX_enable Fan speed control method:
0 - No control (fan at full speed)
1 - Manual fan speed control (using pwm[1-*])
2 - Automatic fan speed control
pwmX_auto_channels_temp Select which channels affect this PWM
1 - TEMP1 controls PWM
2 - TEMP2 controls PWM
4 - TEMP3 controls PWM
6 - TEMP2 and TEMP3 control PWM
7 - All three inputs control PWM
pwmX_freq Read/write the PWM frequency in Hz. The number
should be one of the following:
11 Hz
14 Hz
22 Hz
29 Hz
35 Hz
44 Hz
58 Hz
88 Hz
pwmX_auto_point1_pwm Read/write the minimum PWM duty cycle in automatic mode
pwmX_auto_point2_pwm Read/write the maximum PWM duty cycle in automatic mode
(there are three temperature settings numbered temp1 to temp3):
tempX_input Read the current temperature. The value is in milli
degrees of Celsius.
tempX_max Read/write the upper temperature limit - exceeding this
will cause an alarm.
tempX_min Read/write the lower temperature limit - exceeding this
will cause an alarm.
tempX_offset Read/write the temperature adjustment offset
tempX_crit Read/write the THERM limit for remote1.
tempX_crit_hyst Set the temperature value below crit where the
fans will stay on - this helps drive the temperature
low enough so it doesn't stay near the edge and
cause THERM to keep tripping.
tempX_auto_point1_temp Read/write the minimum temperature where the fans will
turn on in automatic mode.
tempX_auto_point2_temp Read/write the maximum temperature over which the fans
will run in automatic mode. tempX_auto_point1_temp
and tempX_auto_point2_temp together define the
range of automatic control.
tempX_alarm Read a 1 if the max/min alarm is set
tempX_fault Read a 1 if either temp1 or temp3 diode has a fault
(There are two voltage settings, in1 and in2):
inX_input Read the current voltage on VCC. Value is in
millivolts.
inX_min read/write the minimum voltage limit.
Dropping below this causes an alarm.
inX_max read/write the maximum voltage limit.
Exceeding this causes an alarm.
inX_alarm Read a 1 if the max/min alarm is set.
......@@ -189,6 +189,16 @@ config SENSORS_ADT7473
This driver can also be built as a module. If so, the module
will be called adt7473.
config SENSORS_ADT7475
tristate "Analog Devices ADT7475"
depends on I2C && EXPERIMENTAL
help
If you say yes here you get support for the Analog Devices
ADT7475 hardware monitoring chips.
This driver can also be build as a module. If so, the module
will be called adt7475.
config SENSORS_K8TEMP
tristate "AMD Athlon64/FX or Opteron temperature sensor"
depends on X86 && PCI && EXPERIMENTAL
......
......@@ -28,6 +28,8 @@ obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o
obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o
obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o
obj-$(CONFIG_SENSORS_ADT7473) += adt7473.o
obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o
obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o
obj-$(CONFIG_SENSORS_AMS) += ams/
obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
......
......@@ -279,7 +279,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
{ "OTES1 Fan", 36, 2, 60, 1, 0 },
{ NULL, 0, 0, 0, 0, 0 } }
},
{ 0x0011, "AT8 32X(ATI RD580-ULI M1575)", {
{ 0x0011, "AT8 32X", {
{ "CPU Core", 0, 0, 10, 1, 0 },
{ "DDR", 1, 0, 20, 1, 0 },
{ "DDR VTT", 2, 0, 10, 1, 0 },
......@@ -402,7 +402,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
{ "AUX3 Fan", 36, 2, 60, 1, 0 },
{ NULL, 0, 0, 0, 0, 0 } }
},
{ 0x0016, "AW9D-MAX (Intel i975-ICH7)", {
{ 0x0016, "AW9D-MAX", {
{ "CPU Core", 0, 0, 10, 1, 0 },
{ "DDR2", 1, 0, 20, 1, 0 },
{ "DDR2 VTT", 2, 0, 10, 1, 0 },
......@@ -482,7 +482,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
{ "AUX3 Fan", 36, 2, 60, 1, 0 },
{ NULL, 0, 0, 0, 0, 0 } }
},
{ 0x0019, NULL /* Unknown, need DMI string */, {
{ 0x0019, "IN9 32X MAX", {
{ "CPU Core", 7, 0, 10, 1, 0 },
{ "DDR2", 13, 0, 20, 1, 0 },
{ "DDR2 VTT", 14, 0, 10, 1, 0 },
......@@ -509,7 +509,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
{ "AUX3 FAN", 36, 2, 60, 1, 0 },
{ NULL, 0, 0, 0, 0, 0 } }
},
{ 0x001A, "IP35 Pro(Intel P35-ICH9R)", {
{ 0x001A, "IP35 Pro", {
{ "CPU Core", 0, 0, 10, 1, 0 },
{ "DDR2", 1, 0, 20, 1, 0 },
{ "DDR2 VTT", 2, 0, 10, 1, 0 },
......@@ -1128,6 +1128,7 @@ static int __init abituguru3_dmi_detect(void)
{
const char *board_vendor, *board_name;
int i, err = (force) ? 1 : -ENODEV;
size_t sublen;
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
if (!board_vendor || strcmp(board_vendor, "http://www.abit.com.tw/"))
......@@ -1137,9 +1138,20 @@ static int __init abituguru3_dmi_detect(void)
if (!board_name)
return err;
/* At the moment, we don't care about the part of the vendor
* DMI string contained in brackets. Truncate the string at
* the first occurrence of a bracket. Trim any trailing space
* from the substring.
*/
sublen = strcspn(board_name, "(");
while (sublen > 0 && board_name[sublen - 1] == ' ')
sublen--;
for (i = 0; abituguru3_motherboards[i].id; i++) {
const char *dmi_name = abituguru3_motherboards[i].dmi_name;
if (dmi_name && !strcmp(dmi_name, board_name))
if (!dmi_name || strlen(dmi_name) != sublen)
continue;
if (!strncasecmp(board_name, dmi_name, sublen))
break;
}
......@@ -1153,7 +1165,7 @@ static int __init abituguru3_dmi_detect(void)
static inline int abituguru3_dmi_detect(void)
{
return -ENODEV;
return 1;
}
#endif /* CONFIG_DMI */
......
/*
* 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>
* 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_VOLTAGE_BASE 0x21
#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_STATUS1 0x41
#define REG_STATUS2 0x42
#define REG_VOLTAGE_MIN_BASE 0x46
#define REG_VOLTAGE_MAX_BASE 0x47
#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 CONFIG5_TWOSCOMP 0x01
#define CONFIG5_TEMPOFFSET 0x02
/* ADT7475 Settings */
#define ADT7475_VOLTAGE_COUNT 2
#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[] = { 0x2e, I2C_CLIENT_END };
I2C_CLIENT_INSMOD_1(adt7475);
static const struct i2c_device_id adt7475_id[] = {
{ "adt7475", adt7475 },
{ }
};
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 config5;
u16 alarms;
u16 voltage[3][3];
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);
}
static inline int reg2vcc(u16 reg)
{
return (4296 * reg) / 1000;
}
static inline int reg2vccp(u16 reg)
{
return (2929 * reg) / 1000;
}
static inline u16 vcc2reg(long vcc)
{
vcc = SENSORS_LIMIT(vcc, 0, 4396);
return (vcc * 1000) / 4296;
}
static inline u16 vccp2reg(long vcc)
{
vcc = SENSORS_LIMIT(vcc, 0, 2998);
return (vcc * 1000) / 2929;
}
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)) & 1);
default:
val = data->voltage[sattr->nr][sattr->index];
return sprintf(buf, "%d\n",
sattr->index ==
0 ? reg2vccp(val) : reg2vcc(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] =
sattr->index ? vcc2reg(val) : vccp2reg(val);
if (sattr->nr == MIN)
reg = VOLTAGE_MIN_REG(sattr->index);
else
reg = VOLTAGE_MAX_REG(sattr->index);
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);
out = out ? 0 : 1;
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 SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 0);
static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 0);
static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 1);
static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 1);
static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
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_channel_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_channel_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_channel_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);
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_channel_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_channel_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_channel_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
NULL,
};
struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
static int adt7475_detect(struct i2c_client *client, int kind,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
if (kind <= 0) {
if (adt7475_read(REG_VENDID) != 0x41 ||
adt7475_read(REG_DEVID) != 0x75) {
dev_err(&adapter->dev,
"Couldn't detect a adt7475 part at 0x%02x\n",
(unsigned int)client->addr);
return -ENODEV;
}
}
strlcpy(info->type, adt7475_id[0].name, I2C_NAME_SIZE);
return 0;
}
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);
/* 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;
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:
sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
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);
sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
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);
u8 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_EXTEND1);
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++)
data->voltage[INPUT][i] =
(adt7475_read(VOLTAGE_REG(i)) << 2) |
((ext >> ((i + 1) * 2)) & 3);
ext = adt7475_read(REG_EXTEND2);
for (i = 0; i < ADT7475_TEMP_COUNT; i++)
data->temp[INPUT][i] =
(adt7475_read(TEMP_REG(i)) << 2) |
((ext >> ((i + 1) * 2)) & 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 * 2) ||
!data->valid) {
data->config5 = adt7475_read(REG_CONFIG5);
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
/* 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;
}
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);
......@@ -31,6 +31,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <asm/processor.h>
#define TEMP_FROM_REG(val) (((((val) >> 16) & 0xff) - 49) * 1000)
#define REG_TEMP 0xe4
......@@ -47,6 +48,8 @@ struct k8temp_data {
/* registers values */
u8 sensorsp; /* sensor presence bits - SEL_CORE & SEL_PLACE */
u32 temp[2][2]; /* core, place */
u8 swap_core_select; /* meaning of SEL_CORE is inverted */
u32 temp_offset;
};
static struct k8temp_data *k8temp_update_device(struct device *dev)
......@@ -114,10 +117,15 @@ static ssize_t show_temp(struct device *dev,
to_sensor_dev_attr_2(devattr);
int core = attr->nr;
int place = attr->index;
int temp;
struct k8temp_data *data = k8temp_update_device(dev);
return sprintf(buf, "%d\n",
TEMP_FROM_REG(data->temp[core][place]));
if (data->swap_core_select)
core = core ? 0 : 1;
temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset;
return sprintf(buf, "%d\n", temp);
}
/* core, place */
......@@ -141,20 +149,49 @@ static int __devinit k8temp_probe(struct pci_dev *pdev,
int err;
u8 scfg;
u32 temp;
u8 model, stepping;
struct k8temp_data *data;
u32 cpuid = cpuid_eax(1);
/* this feature should be available since SH-C0 core */
if ((cpuid == 0xf40) || (cpuid == 0xf50) || (cpuid == 0xf51)) {
err = -ENODEV;
goto exit;
}
if (!(data = kzalloc(sizeof(struct k8temp_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
model = boot_cpu_data.x86_model;
stepping = boot_cpu_data.x86_mask;
switch (boot_cpu_data.x86) {
case 0xf:
/* feature available since SH-C0, exclude older revisions */
if (((model == 4) && (stepping == 0)) ||
((model == 5) && (stepping <= 1))) {
err = -ENODEV;
goto exit_free;
}
/*
* AMD NPT family 0fh, i.e. RevF and RevG:
* meaning of SEL_CORE bit is inverted
*/
if (model >= 0x40) {
data->swap_core_select = 1;
dev_warn(&pdev->dev, "Temperature readouts might be "
"wrong - check erratum #141\n");
}
if ((model >= 0x69) &&
!(model == 0xc1 || model == 0x6c || model == 0x7c)) {
/*
* RevG desktop CPUs (i.e. no socket S1G1 parts)
* need additional offset, otherwise reported
* temperature is below ambient temperature
*/
data->temp_offset = 21000;
}
break;
}
pci_read_config_byte(pdev, REG_TEMP, &scfg);
scfg &= ~(SEL_PLACE | SEL_CORE); /* Select sensor 0, core0 */
pci_write_config_byte(pdev, REG_TEMP, scfg);
......
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