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[PATCH] I2C: lm63 uses new sysfs callbacks
I updated the lm63 hardware monitoring driver to take benefit of Yani Ioannou's new sysfs callback capabilities. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare
Greg Kroah-Hartman
parent
1a86c05121
commit
bc51ae1159
1 changed files with 137 additions and 120 deletions
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@ -1,7 +1,7 @@
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/*
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* lm63.c - driver for the National Semiconductor LM63 temperature sensor
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* with integrated fan control
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* Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
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* Copyright (C) 2004-2005 Jean Delvare <khali@linux-fr.org>
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* Based on the lm90 driver.
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*
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* The LM63 is a sensor chip made by National Semiconductor. It measures
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@ -43,6 +43,7 @@
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#include <linux/jiffies.h>
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#include <linux/i2c.h>
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#include <linux/i2c-sensor.h>
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#include <linux/i2c-sysfs.h>
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/*
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* Addresses to scan
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@ -157,16 +158,16 @@ struct lm63_data {
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/* registers values */
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u8 config, config_fan;
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u16 fan1_input;
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u16 fan1_low;
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u16 fan[2]; /* 0: input
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1: low limit */
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u8 pwm1_freq;
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u8 pwm1_value;
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s8 temp1_input;
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s8 temp1_high;
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s16 temp2_input;
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s16 temp2_high;
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s16 temp2_low;
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s8 temp2_crit;
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s8 temp8[3]; /* 0: local input
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1: local high limit
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2: remote critical limit */
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s16 temp11[3]; /* 0: remote input
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1: remote low limit
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2: remote high limit */
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u8 temp2_crit_hyst;
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u8 alarms;
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};
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@ -175,33 +176,33 @@ struct lm63_data {
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* Sysfs callback functions and files
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*/
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#define show_fan(value) \
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static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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struct lm63_data *data = lm63_update_device(dev); \
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return sprintf(buf, "%d\n", FAN_FROM_REG(data->value)); \
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static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
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char *buf)
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{
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index]));
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}
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show_fan(fan1_input);
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show_fan(fan1_low);
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static ssize_t set_fan1_low(struct device *dev, struct device_attribute *attr, const char *buf,
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size_t count)
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static ssize_t set_fan(struct device *dev, struct device_attribute *dummy,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct lm63_data *data = i2c_get_clientdata(client);
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unsigned long val = simple_strtoul(buf, NULL, 10);
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down(&data->update_lock);
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data->fan1_low = FAN_TO_REG(val);
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data->fan[1] = FAN_TO_REG(val);
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i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB,
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data->fan1_low & 0xFF);
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data->fan[1] & 0xFF);
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i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB,
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data->fan1_low >> 8);
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data->fan[1] >> 8);
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up(&data->update_lock);
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return count;
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}
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static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy,
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char *buf)
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{
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%d\n", data->pwm1_value >= 2 * data->pwm1_freq ?
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@ -209,7 +210,8 @@ static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char
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(2 * data->pwm1_freq));
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}
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static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
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static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct lm63_data *data = i2c_get_clientdata(client);
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@ -228,77 +230,83 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const
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return count;
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}
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static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dummy,
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char *buf)
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{
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2);
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}
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#define show_temp8(value) \
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static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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struct lm63_data *data = lm63_update_device(dev); \
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return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->value)); \
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static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
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char *buf)
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{
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]));
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}
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#define show_temp11(value) \
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static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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struct lm63_data *data = lm63_update_device(dev); \
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return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->value)); \
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}
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show_temp8(temp1_input);
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show_temp8(temp1_high);
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show_temp11(temp2_input);
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show_temp11(temp2_high);
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show_temp11(temp2_low);
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show_temp8(temp2_crit);
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#define set_temp8(value, reg) \
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static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, \
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size_t count) \
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{ \
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struct i2c_client *client = to_i2c_client(dev); \
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struct lm63_data *data = i2c_get_clientdata(client); \
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long val = simple_strtol(buf, NULL, 10); \
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\
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down(&data->update_lock); \
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data->value = TEMP8_TO_REG(val); \
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i2c_smbus_write_byte_data(client, reg, data->value); \
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up(&data->update_lock); \
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return count; \
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static ssize_t set_temp8(struct device *dev, struct device_attribute *dummy,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct lm63_data *data = i2c_get_clientdata(client);
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long val = simple_strtol(buf, NULL, 10);
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down(&data->update_lock);
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data->temp8[1] = TEMP8_TO_REG(val);
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i2c_smbus_write_byte_data(client, LM63_REG_LOCAL_HIGH, data->temp8[1]);
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up(&data->update_lock);
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return count;
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}
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#define set_temp11(value, reg_msb, reg_lsb) \
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static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, \
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size_t count) \
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{ \
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struct i2c_client *client = to_i2c_client(dev); \
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struct lm63_data *data = i2c_get_clientdata(client); \
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long val = simple_strtol(buf, NULL, 10); \
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\
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down(&data->update_lock); \
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data->value = TEMP11_TO_REG(val); \
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i2c_smbus_write_byte_data(client, reg_msb, data->value >> 8); \
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i2c_smbus_write_byte_data(client, reg_lsb, data->value & 0xff); \
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up(&data->update_lock); \
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return count; \
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static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
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char *buf)
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{
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index]));
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}
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static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
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const char *buf, size_t count)
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{
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static const u8 reg[4] = {
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LM63_REG_REMOTE_LOW_MSB,
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LM63_REG_REMOTE_LOW_LSB,
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LM63_REG_REMOTE_HIGH_MSB,
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LM63_REG_REMOTE_HIGH_LSB,
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};
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struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
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struct i2c_client *client = to_i2c_client(dev);
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struct lm63_data *data = i2c_get_clientdata(client);
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long val = simple_strtol(buf, NULL, 10);
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int nr = attr->index;
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down(&data->update_lock);
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data->temp11[nr] = TEMP11_TO_REG(val);
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i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
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data->temp11[nr] >> 8);
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i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
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data->temp11[nr] & 0xff);
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up(&data->update_lock);
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return count;
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}
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set_temp8(temp1_high, LM63_REG_LOCAL_HIGH);
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set_temp11(temp2_high, LM63_REG_REMOTE_HIGH_MSB, LM63_REG_REMOTE_HIGH_LSB);
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set_temp11(temp2_low, LM63_REG_REMOTE_LOW_MSB, LM63_REG_REMOTE_LOW_LSB);
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/* Hysteresis register holds a relative value, while we want to present
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an absolute to user-space */
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static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy,
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char *buf)
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{
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp2_crit)
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return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2])
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- TEMP8_FROM_REG(data->temp2_crit_hyst));
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}
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/* And now the other way around, user-space provides an absolute
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hysteresis value and we have to store a relative one */
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static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *attr, const char *buf,
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size_t count)
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static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct lm63_data *data = i2c_get_clientdata(client);
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@ -306,36 +314,37 @@ static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *
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long hyst;
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down(&data->update_lock);
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hyst = TEMP8_FROM_REG(data->temp2_crit) - val;
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hyst = TEMP8_FROM_REG(data->temp8[2]) - val;
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i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST,
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HYST_TO_REG(hyst));
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up(&data->update_lock);
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return count;
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}
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static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
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static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
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char *buf)
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{
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struct lm63_data *data = lm63_update_device(dev);
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return sprintf(buf, "%u\n", data->alarms);
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}
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static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan1_input, NULL);
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static DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan1_low,
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set_fan1_low);
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static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
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static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan,
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set_fan, 1);
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static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1);
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static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL);
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static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1_input, NULL);
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static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp1_high,
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set_temp1_high);
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static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp8, NULL, 0);
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static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
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set_temp8, 1);
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static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp2_input, NULL);
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static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp2_low,
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set_temp2_low);
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static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp2_high,
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set_temp2_high);
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static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp2_crit, NULL);
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static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
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static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
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set_temp11, 1);
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static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
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set_temp11, 2);
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static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp8, NULL, 2);
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static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst,
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set_temp2_crit_hyst);
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@ -429,17 +438,25 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
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/* Register sysfs hooks */
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if (data->config & 0x04) { /* tachometer enabled */
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device_create_file(&new_client->dev, &dev_attr_fan1_input);
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device_create_file(&new_client->dev, &dev_attr_fan1_min);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_fan1_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_fan1_min.dev_attr);
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}
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device_create_file(&new_client->dev, &dev_attr_pwm1);
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device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
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device_create_file(&new_client->dev, &dev_attr_temp1_input);
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device_create_file(&new_client->dev, &dev_attr_temp2_input);
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device_create_file(&new_client->dev, &dev_attr_temp2_min);
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device_create_file(&new_client->dev, &dev_attr_temp1_max);
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device_create_file(&new_client->dev, &dev_attr_temp2_max);
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device_create_file(&new_client->dev, &dev_attr_temp2_crit);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp1_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_input.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_min.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp1_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_max.dev_attr);
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device_create_file(&new_client->dev,
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&sensor_dev_attr_temp2_crit.dev_attr);
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device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
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device_create_file(&new_client->dev, &dev_attr_alarms);
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@ -510,14 +527,14 @@ static struct lm63_data *lm63_update_device(struct device *dev)
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if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
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if (data->config & 0x04) { /* tachometer enabled */
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/* order matters for fan1_input */
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data->fan1_input = i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_COUNT_LSB) & 0xFC;
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data->fan1_input |= i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_COUNT_MSB) << 8;
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data->fan1_low = (i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_LIMIT_LSB) & 0xFC)
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| (i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_LIMIT_MSB) << 8);
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data->fan[0] = i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_COUNT_LSB) & 0xFC;
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data->fan[0] |= i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_COUNT_MSB) << 8;
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data->fan[1] = (i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_LIMIT_LSB) & 0xFC)
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| (i2c_smbus_read_byte_data(client,
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LM63_REG_TACH_LIMIT_MSB) << 8);
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}
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data->pwm1_freq = i2c_smbus_read_byte_data(client,
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@ -527,26 +544,26 @@ static struct lm63_data *lm63_update_device(struct device *dev)
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data->pwm1_value = i2c_smbus_read_byte_data(client,
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LM63_REG_PWM_VALUE);
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data->temp1_input = i2c_smbus_read_byte_data(client,
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LM63_REG_LOCAL_TEMP);
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data->temp1_high = i2c_smbus_read_byte_data(client,
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||||
LM63_REG_LOCAL_HIGH);
|
||||
data->temp8[0] = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_LOCAL_TEMP);
|
||||
data->temp8[1] = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_LOCAL_HIGH);
|
||||
|
||||
/* order matters for temp2_input */
|
||||
data->temp2_input = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TEMP_MSB) << 8;
|
||||
data->temp2_input |= i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TEMP_LSB);
|
||||
data->temp2_high = (i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_HIGH_MSB) << 8)
|
||||
| i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_HIGH_LSB);
|
||||
data->temp2_low = (i2c_smbus_read_byte_data(client,
|
||||
data->temp11[0] = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TEMP_MSB) << 8;
|
||||
data->temp11[0] |= i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TEMP_LSB);
|
||||
data->temp11[1] = (i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_LOW_MSB) << 8)
|
||||
| i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_LOW_LSB);
|
||||
data->temp2_crit = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TCRIT);
|
||||
data->temp11[2] = (i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_HIGH_MSB) << 8)
|
||||
| i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_HIGH_LSB);
|
||||
data->temp8[2] = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TCRIT);
|
||||
data->temp2_crit_hyst = i2c_smbus_read_byte_data(client,
|
||||
LM63_REG_REMOTE_TCRIT_HYST);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue