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Commit 28292e79 authored by Jean Delvare's avatar Jean Delvare Committed by Mark M. Hoffman
Browse files

hwmon: (gl518sm) Refactor fan functions 



This makes the code more readable and the binary smaller (by 5% or so).

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarMark M. Hoffman <mhoffman@lightlink.com>
parent 5314f5c1

drivers/hwmon/gl518sm.c

+60 −50
Original line number Diff line number Diff line
@@ -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 @@ static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, 
	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(RAW, alarms, alarms); 
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 @@ static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, c 
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_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT); 
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 @@ static ssize_t set_fan_min1(struct device *dev, struct device_attribute *attr, c 
	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, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1); 
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 @@ static struct attribute *gl518_attributes[] = { 
	&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,