hwmon: (gl518sm) Refactor fan functions
This makes the code more readable and the binary smaller (by 5% or so).
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
index 8287a3a..ed901f9 100644
--- a/drivers/hwmon/gl518sm.c
+++ b/drivers/hwmon/gl518sm.c
@@ -38,6 +38,7 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
@@ -166,24 +167,10 @@
return sprintf(buf, "%d\n", type##_FROM_REG(data->value)); \
}
-#define show_fan(suffix, value, index) \
-static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct gl518_data *data = gl518_update_device(dev); \
- return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[index], \
- DIV_FROM_REG(data->fan_div[index]))); \
-}
-
show(TEMP, temp_input1, temp_in);
show(TEMP, temp_max1, temp_max);
show(TEMP, temp_hyst1, temp_hyst);
show(BOOL, fan_auto1, fan_auto1);
-show_fan(fan_input1, fan_in, 0);
-show_fan(fan_input2, fan_in, 1);
-show_fan(fan_min1, fan_min, 0);
-show_fan(fan_min2, fan_min, 1);
-show(DIV, fan_div1, fan_div[0]);
-show(DIV, fan_div2, fan_div[1]);
show(VDD, in_input0, voltage_in[0]);
show(IN, in_input1, voltage_in[1]);
show(IN, in_input2, voltage_in[2]);
@@ -200,6 +187,32 @@
show(BOOL, beep_enable, beep_enable);
show(BEEP_MASK, beep_mask, beep_mask);
+static ssize_t show_fan_input(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct gl518_data *data = gl518_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_in[nr],
+ DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_min(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct gl518_data *data = gl518_update_device(dev);
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_div(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct gl518_data *data = gl518_update_device(dev);
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
#define set(type, suffix, value, reg) \
static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
size_t count) \
@@ -241,8 +254,6 @@
set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX);
set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST);
set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3);
-set_bits(DIV, fan_div1, fan_div[0], GL518_REG_MISC, 0xc0, 6);
-set_bits(DIV, fan_div2, fan_div[1], GL518_REG_MISC, 0x30, 4);
set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT);
set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT);
set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT);
@@ -254,25 +265,27 @@
set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2);
set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
-static ssize_t set_fan_min1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct gl518_data *data = i2c_get_clientdata(client);
+ int nr = to_sensor_dev_attr(attr)->index;
int regvalue;
unsigned long val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
- data->fan_min[0] = FAN_TO_REG(val,
- DIV_FROM_REG(data->fan_div[0]));
- regvalue = (regvalue & 0x00ff) | (data->fan_min[0] << 8);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ regvalue = (regvalue & (0xff << (8 * nr)))
+ | (data->fan_min[nr] << (8 * (1 - nr)));
gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
- if (data->fan_min[0] == 0)
- data->alarm_mask &= ~0x20;
+ if (data->fan_min[nr] == 0)
+ data->alarm_mask &= ~(0x20 << nr);
else
- data->alarm_mask |= 0x20;
+ data->alarm_mask |= (0x20 << nr);
data->beep_mask &= data->alarm_mask;
gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
@@ -280,28 +293,21 @@
return count;
}
-static ssize_t set_fan_min2(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct gl518_data *data = i2c_get_clientdata(client);
+ int nr = to_sensor_dev_attr(attr)->index;
int regvalue;
unsigned long val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
- regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
- data->fan_min[1] = FAN_TO_REG(val,
- DIV_FROM_REG(data->fan_div[1]));
- regvalue = (regvalue & 0xff00) | data->fan_min[1];
- gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
-
- data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
- if (data->fan_min[1] == 0)
- data->alarm_mask &= ~0x40;
- else
- data->alarm_mask |= 0x40;
- data->beep_mask &= data->alarm_mask;
- gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
-
+ regvalue = gl518_read_value(client, GL518_REG_MISC);
+ data->fan_div[nr] = DIV_TO_REG(val);
+ regvalue = (regvalue & ~(0xc0 >> (2 * nr)))
+ | (data->fan_div[nr] << (6 - 2 * nr));
+ gl518_write_value(client, GL518_REG_MISC, regvalue);
mutex_unlock(&data->update_lock);
return count;
}
@@ -311,12 +317,16 @@
static DEVICE_ATTR(temp1_max_hyst, S_IWUSR|S_IRUGO,
show_temp_hyst1, set_temp_hyst1);
static DEVICE_ATTR(fan1_auto, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1);
-static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input1, NULL);
-static DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input2, NULL);
-static DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO, show_fan_min1, set_fan_min1);
-static DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO, show_fan_min2, set_fan_min2);
-static DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO, show_fan_div1, set_fan_div1);
-static DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO, show_fan_div2, set_fan_div2);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO,
+ show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO,
+ show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO,
+ show_fan_div, set_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO,
+ show_fan_div, set_fan_div, 1);
static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL);
static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL);
static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL);
@@ -347,12 +357,12 @@
&dev_attr_in3_max.attr,
&dev_attr_fan1_auto.attr,
- &dev_attr_fan1_input.attr,
- &dev_attr_fan2_input.attr,
- &dev_attr_fan1_min.attr,
- &dev_attr_fan2_min.attr,
- &dev_attr_fan1_div.attr,
- &dev_attr_fan2_div.attr,
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan1_min.dev_attr.attr,
+ &sensor_dev_attr_fan2_min.dev_attr.attr,
+ &sensor_dev_attr_fan1_div.dev_attr.attr,
+ &sensor_dev_attr_fan2_div.dev_attr.attr,
&dev_attr_temp1_input.attr,
&dev_attr_temp1_max.attr,