mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
![Guenter Roeck](/assets/img/avatar_default.png)
Convert to use devm_ functions to reduce code size and simplify the code. Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
924 lines
26 KiB
C
924 lines
26 KiB
C
/*
|
|
* f75375s.c - driver for the Fintek F75375/SP, F75373 and
|
|
* F75387SG/RG hardware monitoring features
|
|
* Copyright (C) 2006-2007 Riku Voipio
|
|
*
|
|
* Datasheets available at:
|
|
*
|
|
* f75375:
|
|
* http://www.fintek.com.tw/files/productfiles/F75375_V026P.pdf
|
|
*
|
|
* f75373:
|
|
* http://www.fintek.com.tw/files/productfiles/F75373_V025P.pdf
|
|
*
|
|
* f75387:
|
|
* http://www.fintek.com.tw/files/productfiles/F75387_V027P.pdf
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/jiffies.h>
|
|
#include <linux/hwmon.h>
|
|
#include <linux/hwmon-sysfs.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/err.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/f75375s.h>
|
|
#include <linux/slab.h>
|
|
|
|
/* Addresses to scan */
|
|
static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
|
|
|
|
enum chips { f75373, f75375, f75387 };
|
|
|
|
/* Fintek F75375 registers */
|
|
#define F75375_REG_CONFIG0 0x0
|
|
#define F75375_REG_CONFIG1 0x1
|
|
#define F75375_REG_CONFIG2 0x2
|
|
#define F75375_REG_CONFIG3 0x3
|
|
#define F75375_REG_ADDR 0x4
|
|
#define F75375_REG_INTR 0x31
|
|
#define F75375_CHIP_ID 0x5A
|
|
#define F75375_REG_VERSION 0x5C
|
|
#define F75375_REG_VENDOR 0x5D
|
|
#define F75375_REG_FAN_TIMER 0x60
|
|
|
|
#define F75375_REG_VOLT(nr) (0x10 + (nr))
|
|
#define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2)
|
|
#define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2)
|
|
|
|
#define F75375_REG_TEMP(nr) (0x14 + (nr))
|
|
#define F75387_REG_TEMP11_LSB(nr) (0x1a + (nr))
|
|
#define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2)
|
|
#define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2)
|
|
|
|
#define F75375_REG_FAN(nr) (0x16 + (nr) * 2)
|
|
#define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2)
|
|
#define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10)
|
|
#define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10)
|
|
#define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10)
|
|
|
|
#define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10)
|
|
#define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
|
|
#define F75375_REG_FAN_B_SPEED(nr, step) \
|
|
((0xA5 + (nr) * 0x10) + (step) * 2)
|
|
|
|
#define F75375_REG_PWM1_RAISE_DUTY 0x69
|
|
#define F75375_REG_PWM2_RAISE_DUTY 0x6A
|
|
#define F75375_REG_PWM1_DROP_DUTY 0x6B
|
|
#define F75375_REG_PWM2_DROP_DUTY 0x6C
|
|
|
|
#define F75375_FAN_CTRL_LINEAR(nr) (4 + nr)
|
|
#define F75387_FAN_CTRL_LINEAR(nr) (1 + ((nr) * 4))
|
|
#define FAN_CTRL_MODE(nr) (4 + ((nr) * 2))
|
|
#define F75387_FAN_DUTY_MODE(nr) (2 + ((nr) * 4))
|
|
#define F75387_FAN_MANU_MODE(nr) ((nr) * 4)
|
|
|
|
/*
|
|
* Data structures and manipulation thereof
|
|
*/
|
|
|
|
struct f75375_data {
|
|
unsigned short addr;
|
|
struct device *hwmon_dev;
|
|
|
|
const char *name;
|
|
int kind;
|
|
struct mutex update_lock; /* protect register access */
|
|
char valid;
|
|
unsigned long last_updated; /* In jiffies */
|
|
unsigned long last_limits; /* In jiffies */
|
|
|
|
/* Register values */
|
|
u8 in[4];
|
|
u8 in_max[4];
|
|
u8 in_min[4];
|
|
u16 fan[2];
|
|
u16 fan_min[2];
|
|
u16 fan_max[2];
|
|
u16 fan_target[2];
|
|
u8 fan_timer;
|
|
u8 pwm[2];
|
|
u8 pwm_mode[2];
|
|
u8 pwm_enable[2];
|
|
/*
|
|
* f75387: For remote temperature reading, it uses signed 11-bit
|
|
* values with LSB = 0.125 degree Celsius, left-justified in 16-bit
|
|
* registers. For original 8-bit temp readings, the LSB just is 0.
|
|
*/
|
|
s16 temp11[2];
|
|
s8 temp_high[2];
|
|
s8 temp_max_hyst[2];
|
|
};
|
|
|
|
static int f75375_detect(struct i2c_client *client,
|
|
struct i2c_board_info *info);
|
|
static int f75375_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id);
|
|
static int f75375_remove(struct i2c_client *client);
|
|
|
|
static const struct i2c_device_id f75375_id[] = {
|
|
{ "f75373", f75373 },
|
|
{ "f75375", f75375 },
|
|
{ "f75387", f75387 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, f75375_id);
|
|
|
|
static struct i2c_driver f75375_driver = {
|
|
.class = I2C_CLASS_HWMON,
|
|
.driver = {
|
|
.name = "f75375",
|
|
},
|
|
.probe = f75375_probe,
|
|
.remove = f75375_remove,
|
|
.id_table = f75375_id,
|
|
.detect = f75375_detect,
|
|
.address_list = normal_i2c,
|
|
};
|
|
|
|
static inline int f75375_read8(struct i2c_client *client, u8 reg)
|
|
{
|
|
return i2c_smbus_read_byte_data(client, reg);
|
|
}
|
|
|
|
/* in most cases, should be called while holding update_lock */
|
|
static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
|
|
{
|
|
return (i2c_smbus_read_byte_data(client, reg) << 8)
|
|
| i2c_smbus_read_byte_data(client, reg + 1);
|
|
}
|
|
|
|
static inline void f75375_write8(struct i2c_client *client, u8 reg,
|
|
u8 value)
|
|
{
|
|
i2c_smbus_write_byte_data(client, reg, value);
|
|
}
|
|
|
|
static inline void f75375_write16(struct i2c_client *client, u8 reg,
|
|
u16 value)
|
|
{
|
|
int err = i2c_smbus_write_byte_data(client, reg, (value >> 8));
|
|
if (err)
|
|
return;
|
|
i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
|
|
}
|
|
|
|
static void f75375_write_pwm(struct i2c_client *client, int nr)
|
|
{
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
if (data->kind == f75387)
|
|
f75375_write16(client, F75375_REG_FAN_EXP(nr), data->pwm[nr]);
|
|
else
|
|
f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
|
|
data->pwm[nr]);
|
|
}
|
|
|
|
static struct f75375_data *f75375_update_device(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
int nr;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
/* Limit registers cache is refreshed after 60 seconds */
|
|
if (time_after(jiffies, data->last_limits + 60 * HZ)
|
|
|| !data->valid) {
|
|
for (nr = 0; nr < 2; nr++) {
|
|
data->temp_high[nr] =
|
|
f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
|
|
data->temp_max_hyst[nr] =
|
|
f75375_read8(client, F75375_REG_TEMP_HYST(nr));
|
|
data->fan_max[nr] =
|
|
f75375_read16(client, F75375_REG_FAN_FULL(nr));
|
|
data->fan_min[nr] =
|
|
f75375_read16(client, F75375_REG_FAN_MIN(nr));
|
|
data->fan_target[nr] =
|
|
f75375_read16(client, F75375_REG_FAN_EXP(nr));
|
|
}
|
|
for (nr = 0; nr < 4; nr++) {
|
|
data->in_max[nr] =
|
|
f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
|
|
data->in_min[nr] =
|
|
f75375_read8(client, F75375_REG_VOLT_LOW(nr));
|
|
}
|
|
data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
|
|
data->last_limits = jiffies;
|
|
}
|
|
|
|
/* Measurement registers cache is refreshed after 2 second */
|
|
if (time_after(jiffies, data->last_updated + 2 * HZ)
|
|
|| !data->valid) {
|
|
for (nr = 0; nr < 2; nr++) {
|
|
data->pwm[nr] = f75375_read8(client,
|
|
F75375_REG_FAN_PWM_DUTY(nr));
|
|
/* assign MSB, therefore shift it by 8 bits */
|
|
data->temp11[nr] =
|
|
f75375_read8(client, F75375_REG_TEMP(nr)) << 8;
|
|
if (data->kind == f75387)
|
|
/* merge F75387's temperature LSB (11-bit) */
|
|
data->temp11[nr] |=
|
|
f75375_read8(client,
|
|
F75387_REG_TEMP11_LSB(nr));
|
|
data->fan[nr] =
|
|
f75375_read16(client, F75375_REG_FAN(nr));
|
|
}
|
|
for (nr = 0; nr < 4; nr++)
|
|
data->in[nr] =
|
|
f75375_read8(client, F75375_REG_VOLT(nr));
|
|
|
|
data->last_updated = jiffies;
|
|
data->valid = 1;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return data;
|
|
}
|
|
|
|
static inline u16 rpm_from_reg(u16 reg)
|
|
{
|
|
if (reg == 0 || reg == 0xffff)
|
|
return 0;
|
|
return 1500000 / reg;
|
|
}
|
|
|
|
static inline u16 rpm_to_reg(int rpm)
|
|
{
|
|
if (rpm < 367 || rpm > 0xffff)
|
|
return 0xffff;
|
|
return 1500000 / rpm;
|
|
}
|
|
|
|
static bool duty_mode_enabled(u8 pwm_enable)
|
|
{
|
|
switch (pwm_enable) {
|
|
case 0: /* Manual, duty mode (full speed) */
|
|
case 1: /* Manual, duty mode */
|
|
case 4: /* Auto, duty mode */
|
|
return true;
|
|
case 2: /* Auto, speed mode */
|
|
case 3: /* Manual, speed mode */
|
|
return false;
|
|
default:
|
|
BUG();
|
|
return true;
|
|
}
|
|
}
|
|
|
|
static bool auto_mode_enabled(u8 pwm_enable)
|
|
{
|
|
switch (pwm_enable) {
|
|
case 0: /* Manual, duty mode (full speed) */
|
|
case 1: /* Manual, duty mode */
|
|
case 3: /* Manual, speed mode */
|
|
return false;
|
|
case 2: /* Auto, speed mode */
|
|
case 4: /* Auto, duty mode */
|
|
return true;
|
|
default:
|
|
BUG();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->fan_min[nr] = rpm_to_reg(val);
|
|
f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_fan_target(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (auto_mode_enabled(data->pwm_enable[nr]))
|
|
return -EINVAL;
|
|
if (data->kind == f75387 && duty_mode_enabled(data->pwm_enable[nr]))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->fan_target[nr] = rpm_to_reg(val);
|
|
f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_target[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (auto_mode_enabled(data->pwm_enable[nr]) ||
|
|
!duty_mode_enabled(data->pwm_enable[nr]))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
|
|
f75375_write_pwm(client, nr);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
|
|
*attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", data->pwm_enable[nr]);
|
|
}
|
|
|
|
static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
|
|
{
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
u8 fanmode;
|
|
|
|
if (val < 0 || val > 4)
|
|
return -EINVAL;
|
|
|
|
fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
|
|
if (data->kind == f75387) {
|
|
/* For now, deny dangerous toggling of duty mode */
|
|
if (duty_mode_enabled(data->pwm_enable[nr]) !=
|
|
duty_mode_enabled(val))
|
|
return -EOPNOTSUPP;
|
|
/* clear each fanX_mode bit before setting them properly */
|
|
fanmode &= ~(1 << F75387_FAN_DUTY_MODE(nr));
|
|
fanmode &= ~(1 << F75387_FAN_MANU_MODE(nr));
|
|
switch (val) {
|
|
case 0: /* full speed */
|
|
fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
|
|
fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
|
|
data->pwm[nr] = 255;
|
|
break;
|
|
case 1: /* PWM */
|
|
fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
|
|
fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
|
|
break;
|
|
case 2: /* Automatic, speed mode */
|
|
break;
|
|
case 3: /* fan speed */
|
|
fanmode |= (1 << F75387_FAN_MANU_MODE(nr));
|
|
break;
|
|
case 4: /* Automatic, pwm */
|
|
fanmode |= (1 << F75387_FAN_DUTY_MODE(nr));
|
|
break;
|
|
}
|
|
} else {
|
|
/* clear each fanX_mode bit before setting them properly */
|
|
fanmode &= ~(3 << FAN_CTRL_MODE(nr));
|
|
switch (val) {
|
|
case 0: /* full speed */
|
|
fanmode |= (3 << FAN_CTRL_MODE(nr));
|
|
data->pwm[nr] = 255;
|
|
break;
|
|
case 1: /* PWM */
|
|
fanmode |= (3 << FAN_CTRL_MODE(nr));
|
|
break;
|
|
case 2: /* AUTOMATIC*/
|
|
fanmode |= (1 << FAN_CTRL_MODE(nr));
|
|
break;
|
|
case 3: /* fan speed */
|
|
break;
|
|
case 4: /* Automatic pwm */
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
|
|
data->pwm_enable[nr] = val;
|
|
if (val == 0)
|
|
f75375_write_pwm(client, nr);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
err = set_pwm_enable_direct(client, nr, val);
|
|
mutex_unlock(&data->update_lock);
|
|
return err ? err : count;
|
|
}
|
|
|
|
static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
u8 conf;
|
|
char reg, ctrl;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (!(val == 0 || val == 1))
|
|
return -EINVAL;
|
|
|
|
/* F75373 does not support DC (linear voltage) fan control mode */
|
|
if (data->kind == f75373 && val == 0)
|
|
return -EINVAL;
|
|
|
|
/* take care for different registers */
|
|
if (data->kind == f75387) {
|
|
reg = F75375_REG_FAN_TIMER;
|
|
ctrl = F75387_FAN_CTRL_LINEAR(nr);
|
|
} else {
|
|
reg = F75375_REG_CONFIG1;
|
|
ctrl = F75375_FAN_CTRL_LINEAR(nr);
|
|
}
|
|
|
|
mutex_lock(&data->update_lock);
|
|
conf = f75375_read8(client, reg);
|
|
conf &= ~(1 << ctrl);
|
|
|
|
if (val == 0)
|
|
conf |= (1 << ctrl);
|
|
|
|
f75375_write8(client, reg, conf);
|
|
data->pwm_mode[nr] = val;
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_pwm(struct device *dev, struct device_attribute
|
|
*attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", data->pwm[nr]);
|
|
}
|
|
|
|
static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
|
|
*attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", data->pwm_mode[nr]);
|
|
}
|
|
|
|
#define VOLT_FROM_REG(val) ((val) * 8)
|
|
#define VOLT_TO_REG(val) ((val) / 8)
|
|
|
|
static ssize_t show_in(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
|
|
}
|
|
|
|
static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
|
|
}
|
|
|
|
static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
|
|
}
|
|
|
|
static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
|
|
mutex_lock(&data->update_lock);
|
|
data->in_max[nr] = val;
|
|
f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
|
|
mutex_lock(&data->update_lock);
|
|
data->in_min[nr] = val;
|
|
f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
#define TEMP_FROM_REG(val) ((val) * 1000)
|
|
#define TEMP_TO_REG(val) ((val) / 1000)
|
|
#define TEMP11_FROM_REG(reg) ((reg) / 32 * 125)
|
|
|
|
static ssize_t show_temp11(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[nr]));
|
|
}
|
|
|
|
static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
|
|
}
|
|
|
|
static ssize_t show_temp_max_hyst(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct f75375_data *data = f75375_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
|
|
}
|
|
|
|
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_high[nr] = val;
|
|
f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_temp_max_hyst(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
unsigned long val;
|
|
int err;
|
|
|
|
err = kstrtoul(buf, 10, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_max_hyst[nr] = val;
|
|
f75375_write8(client, F75375_REG_TEMP_HYST(nr),
|
|
data->temp_max_hyst[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define show_fan(thing) \
|
|
static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
|
|
char *buf)\
|
|
{\
|
|
int nr = to_sensor_dev_attr(attr)->index;\
|
|
struct f75375_data *data = f75375_update_device(dev); \
|
|
return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
|
|
}
|
|
|
|
show_fan(fan);
|
|
show_fan(fan_min);
|
|
show_fan(fan_max);
|
|
show_fan(fan_target);
|
|
|
|
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 0);
|
|
static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 0);
|
|
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 1);
|
|
static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 1);
|
|
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
|
|
static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 2);
|
|
static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 2);
|
|
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
|
|
static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
|
|
show_in_max, set_in_max, 3);
|
|
static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
|
|
show_in_min, set_in_min, 3);
|
|
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
|
|
show_temp_max_hyst, set_temp_max_hyst, 0);
|
|
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
|
|
show_temp_max, set_temp_max, 0);
|
|
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
|
|
show_temp_max_hyst, set_temp_max_hyst, 1);
|
|
static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
|
|
show_temp_max, set_temp_max, 1);
|
|
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, show_fan_max, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
|
|
show_fan_min, set_fan_min, 0);
|
|
static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO|S_IWUSR,
|
|
show_fan_target, set_fan_target, 0);
|
|
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_max, S_IRUGO, show_fan_max, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
|
|
show_fan_min, set_fan_min, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO|S_IWUSR,
|
|
show_fan_target, set_fan_target, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
|
|
show_pwm, set_pwm, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
|
|
show_pwm_mode, set_pwm_mode, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
|
|
show_pwm, set_pwm, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
|
|
show_pwm_mode, set_pwm_mode, 1);
|
|
|
|
static struct attribute *f75375_attributes[] = {
|
|
&sensor_dev_attr_temp1_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_max.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_target.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_max.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_target.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
|
|
&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_in1_input.dev_attr.attr,
|
|
&sensor_dev_attr_in1_max.dev_attr.attr,
|
|
&sensor_dev_attr_in1_min.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_in3_input.dev_attr.attr,
|
|
&sensor_dev_attr_in3_max.dev_attr.attr,
|
|
&sensor_dev_attr_in3_min.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group f75375_group = {
|
|
.attrs = f75375_attributes,
|
|
};
|
|
|
|
static void f75375_init(struct i2c_client *client, struct f75375_data *data,
|
|
struct f75375s_platform_data *f75375s_pdata)
|
|
{
|
|
int nr;
|
|
|
|
if (!f75375s_pdata) {
|
|
u8 conf, mode;
|
|
int nr;
|
|
|
|
conf = f75375_read8(client, F75375_REG_CONFIG1);
|
|
mode = f75375_read8(client, F75375_REG_FAN_TIMER);
|
|
for (nr = 0; nr < 2; nr++) {
|
|
if (data->kind == f75387) {
|
|
bool manu, duty;
|
|
|
|
if (!(mode & (1 << F75387_FAN_CTRL_LINEAR(nr))))
|
|
data->pwm_mode[nr] = 1;
|
|
|
|
manu = ((mode >> F75387_FAN_MANU_MODE(nr)) & 1);
|
|
duty = ((mode >> F75387_FAN_DUTY_MODE(nr)) & 1);
|
|
if (!manu && duty)
|
|
/* auto, pwm */
|
|
data->pwm_enable[nr] = 4;
|
|
else if (manu && !duty)
|
|
/* manual, speed */
|
|
data->pwm_enable[nr] = 3;
|
|
else if (!manu && !duty)
|
|
/* automatic, speed */
|
|
data->pwm_enable[nr] = 2;
|
|
else
|
|
/* manual, pwm */
|
|
data->pwm_enable[nr] = 1;
|
|
} else {
|
|
if (!(conf & (1 << F75375_FAN_CTRL_LINEAR(nr))))
|
|
data->pwm_mode[nr] = 1;
|
|
|
|
switch ((mode >> FAN_CTRL_MODE(nr)) & 3) {
|
|
case 0: /* speed */
|
|
data->pwm_enable[nr] = 3;
|
|
break;
|
|
case 1: /* automatic */
|
|
data->pwm_enable[nr] = 2;
|
|
break;
|
|
default: /* manual */
|
|
data->pwm_enable[nr] = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
|
|
set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
|
|
for (nr = 0; nr < 2; nr++) {
|
|
if (auto_mode_enabled(f75375s_pdata->pwm_enable[nr]) ||
|
|
!duty_mode_enabled(f75375s_pdata->pwm_enable[nr]))
|
|
continue;
|
|
data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
|
|
f75375_write_pwm(client, nr);
|
|
}
|
|
|
|
}
|
|
|
|
static int f75375_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct f75375_data *data;
|
|
struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
|
|
int err;
|
|
|
|
if (!i2c_check_functionality(client->adapter,
|
|
I2C_FUNC_SMBUS_BYTE_DATA))
|
|
return -EIO;
|
|
data = devm_kzalloc(&client->dev, sizeof(struct f75375_data),
|
|
GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(client, data);
|
|
mutex_init(&data->update_lock);
|
|
data->kind = id->driver_data;
|
|
|
|
err = sysfs_create_group(&client->dev.kobj, &f75375_group);
|
|
if (err)
|
|
return err;
|
|
|
|
if (data->kind != f75373) {
|
|
err = sysfs_chmod_file(&client->dev.kobj,
|
|
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
|
|
S_IRUGO | S_IWUSR);
|
|
if (err)
|
|
goto exit_remove;
|
|
err = sysfs_chmod_file(&client->dev.kobj,
|
|
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
|
|
S_IRUGO | S_IWUSR);
|
|
if (err)
|
|
goto exit_remove;
|
|
}
|
|
|
|
data->hwmon_dev = hwmon_device_register(&client->dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
err = PTR_ERR(data->hwmon_dev);
|
|
goto exit_remove;
|
|
}
|
|
|
|
f75375_init(client, data, f75375s_pdata);
|
|
|
|
return 0;
|
|
|
|
exit_remove:
|
|
sysfs_remove_group(&client->dev.kobj, &f75375_group);
|
|
return err;
|
|
}
|
|
|
|
static int f75375_remove(struct i2c_client *client)
|
|
{
|
|
struct f75375_data *data = i2c_get_clientdata(client);
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
sysfs_remove_group(&client->dev.kobj, &f75375_group);
|
|
return 0;
|
|
}
|
|
|
|
/* Return 0 if detection is successful, -ENODEV otherwise */
|
|
static int f75375_detect(struct i2c_client *client,
|
|
struct i2c_board_info *info)
|
|
{
|
|
struct i2c_adapter *adapter = client->adapter;
|
|
u16 vendid, chipid;
|
|
u8 version;
|
|
const char *name;
|
|
|
|
vendid = f75375_read16(client, F75375_REG_VENDOR);
|
|
chipid = f75375_read16(client, F75375_CHIP_ID);
|
|
if (vendid != 0x1934)
|
|
return -ENODEV;
|
|
|
|
if (chipid == 0x0306)
|
|
name = "f75375";
|
|
else if (chipid == 0x0204)
|
|
name = "f75373";
|
|
else if (chipid == 0x0410)
|
|
name = "f75387";
|
|
else
|
|
return -ENODEV;
|
|
|
|
version = f75375_read8(client, F75375_REG_VERSION);
|
|
dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
|
|
strlcpy(info->type, name, I2C_NAME_SIZE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
module_i2c_driver(f75375_driver);
|
|
|
|
MODULE_AUTHOR("Riku Voipio");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("F75373/F75375/F75387 hardware monitoring driver");
|