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Commit 247dde4c authored by Jean Delvare's avatar Jean Delvare Committed by Jean Delvare
Browse files

hwmon/lm78: Use dynamic sysfs callbacks 



This lets us get rid of macro-generated functions and shrinks the
driver size significantly (about 10%).

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent c59cc301

drivers/hwmon/lm78.c

+101 −124
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <linux/ioport.h>

#include <linux/hwmon.h>

#include <linux/hwmon-vid.h>

#include <linux/hwmon-sysfs.h>

#include <linux/err.h>

#include <linux/mutex.h>

#include <asm/io.h>
@@ -185,29 +186,37 @@ static struct platform_driver lm78_isa_driver = { 




/* 7 Voltages */

static ssize_t show_in(struct device *dev, char *buf, int nr)

static ssize_t show_in(struct device *dev, struct device_attribute *da,

		       char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));

	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[attr->index]));

}



static ssize_t show_in_min(struct device *dev, char *buf, int nr)

static ssize_t show_in_min(struct device *dev, struct device_attribute *da,

			   char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));

	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[attr->index]));

}



static ssize_t show_in_max(struct device *dev, char *buf, int nr)

static ssize_t show_in_max(struct device *dev, struct device_attribute *da,

			   char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));

	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[attr->index]));

}



static ssize_t set_in_min(struct device *dev, const char *buf,

		size_t count, int nr)

static ssize_t set_in_min(struct device *dev, struct device_attribute *da,

			  const char *buf, size_t count)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = dev_get_drvdata(dev);

	unsigned long val = simple_strtoul(buf, NULL, 10);

	int nr = attr->index;



	mutex_lock(&data->update_lock);

	data->in_min[nr] = IN_TO_REG(val);
@@ -216,11 +225,13 @@ static ssize_t set_in_min(struct device *dev, const char *buf, 
	return count;

}



static ssize_t set_in_max(struct device *dev, const char *buf,

		size_t count, int nr)

static ssize_t set_in_max(struct device *dev, struct device_attribute *da,

			  const char *buf, size_t count)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = dev_get_drvdata(dev);

	unsigned long val = simple_strtoul(buf, NULL, 10);

	int nr = attr->index;



	mutex_lock(&data->update_lock);

	data->in_max[nr] = IN_TO_REG(val);
@@ -230,37 +241,12 @@ static ssize_t set_in_max(struct device *dev, const char *buf, 
}

	

#define show_in_offset(offset)					\

static ssize_t							\

	show_in##offset (struct device *dev, struct device_attribute *attr, char *buf)		\

{								\

	return show_in(dev, buf, offset);			\

}								\

static DEVICE_ATTR(in##offset##_input, S_IRUGO, 		\

		show_in##offset, NULL);				\

static ssize_t							\

	show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \

{								\

	return show_in_min(dev, buf, offset);			\

}								\

static ssize_t							\

	show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)   \

{								\

	return show_in_max(dev, buf, offset);			\

}								\

static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr,	\

		const char *buf, size_t count)			\

{								\

	return set_in_min(dev, buf, count, offset);		\

}								\

static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr,	\

		const char *buf, size_t count)			\

{								\

	return set_in_max(dev, buf, count, offset);		\

}								\

static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,		\

		show_in##offset##_min, set_in##offset##_min);	\

static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,		\

		show_in##offset##_max, set_in##offset##_max);

static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\

		show_in, NULL, offset);				\

static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\

		show_in_min, set_in_min, offset);		\

static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\

		show_in_max, set_in_max, offset);



show_in_offset(0);

show_in_offset(1);
@@ -271,19 +257,22 @@ show_in_offset(5); 
show_in_offset(6);



/* Temperature */

static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)

static ssize_t show_temp(struct device *dev, struct device_attribute *da,

			 char *buf)

{

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));

}



static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, char *buf)

static ssize_t show_temp_over(struct device *dev, struct device_attribute *da,

			      char *buf)

{

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));

}



static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)

static ssize_t set_temp_over(struct device *dev, struct device_attribute *da,

			     const char *buf, size_t count)

{

	struct lm78_data *data = dev_get_drvdata(dev);

	long val = simple_strtol(buf, NULL, 10);
@@ -295,13 +284,15 @@ static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, 
	return count;

}



static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf)

static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *da,

			      char *buf)

{

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));

}



static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)

static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *da,

			     const char *buf, size_t count)

{

	struct lm78_data *data = dev_get_drvdata(dev);

	long val = simple_strtol(buf, NULL, 10);
@@ -320,24 +311,32 @@ static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, 
		show_temp_hyst, set_temp_hyst);



/* 3 Fans */

static ssize_t show_fan(struct device *dev, char *buf, int nr)

static ssize_t show_fan(struct device *dev, struct device_attribute *da,

			char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = lm78_update_device(dev);

	int nr = attr->index;

	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],

		DIV_FROM_REG(data->fan_div[nr])) );

}



static ssize_t show_fan_min(struct device *dev, char *buf, int nr)

static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,

			    char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = lm78_update_device(dev);

	int nr = attr->index;

	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],

		DIV_FROM_REG(data->fan_div[nr])) );

}



static ssize_t set_fan_min(struct device *dev, const char *buf,

		size_t count, int nr)

static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,

			   const char *buf, size_t count)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = dev_get_drvdata(dev);

	int nr = attr->index;

	unsigned long val = simple_strtoul(buf, NULL, 10);



	mutex_lock(&data->update_lock);
@@ -347,20 +346,24 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, 
	return count;

}



static ssize_t show_fan_div(struct device *dev, char *buf, int nr)

static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,

			    char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );

	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));

}



/* Note: we save and restore the fan minimum here, because its value is

   determined in part by the fan divisor.  This follows the principle of

   least surprise; the user doesn't expect the fan minimum to change just

   because the divisor changed. */

static ssize_t set_fan_div(struct device *dev, const char *buf,

	size_t count, int nr)

static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,

			   const char *buf, size_t count)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);

	struct lm78_data *data = dev_get_drvdata(dev);

	int nr = attr->index;

	unsigned long val = simple_strtoul(buf, NULL, 10);

	unsigned long min;

	u8 reg;
@@ -401,52 +404,25 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, 
}



#define show_fan_offset(offset)				\

static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf)	\

{									\

	return show_fan(dev, buf, offset - 1);				\

}									\

static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \

{									\

	return show_fan_min(dev, buf, offset - 1);			\

}									\

static ssize_t show_fan_##offset##_div (struct device *dev, struct device_attribute *attr, char *buf)  \

{									\

	return show_fan_div(dev, buf, offset - 1);			\

}									\

static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,		\

		const char *buf, size_t count)				\

{									\

	return set_fan_min(dev, buf, count, offset - 1);		\

}									\

static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\

static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\

		show_fan_##offset##_min, set_fan_##offset##_min);



static ssize_t set_fan_1_div(struct device *dev, struct device_attribute *attr, const char *buf,

		size_t count)

{

	return set_fan_div(dev, buf, count, 0) ;

}



static ssize_t set_fan_2_div(struct device *dev, struct device_attribute *attr, const char *buf,

		size_t count)

{

	return set_fan_div(dev, buf, count, 1) ;

}

static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,		\

		show_fan, NULL, offset - 1);			\

static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,	\

		show_fan_min, set_fan_min, offset - 1);



show_fan_offset(1);

show_fan_offset(2);

show_fan_offset(3);



/* Fan 3 divisor is locked in H/W */

static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,

		show_fan_1_div, set_fan_1_div);

static DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,

		show_fan_2_div, set_fan_2_div);

static DEVICE_ATTR(fan3_div, S_IRUGO, show_fan_3_div, NULL);

static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,

		show_fan_div, set_fan_div, 0);

static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,

		show_fan_div, set_fan_div, 1);

static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2);



/* VID */

static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)

static ssize_t show_vid(struct device *dev, struct device_attribute *da,

			char *buf)

{

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%d\n", vid_from_reg(data->vid, 82));
@@ -454,7 +430,8 @@ static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char 
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);



/* Alarms */

static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)

static ssize_t show_alarms(struct device *dev, struct device_attribute *da,

			   char *buf)

{

	struct lm78_data *data = lm78_update_device(dev);

	return sprintf(buf, "%u\n", data->alarms);
@@ -473,39 +450,39 @@ static int lm78_attach_adapter(struct i2c_adapter *adapter) 
}



static struct attribute *lm78_attributes[] = {

	&dev_attr_in0_input.attr,

	&dev_attr_in0_min.attr,

	&dev_attr_in0_max.attr,

	&dev_attr_in1_input.attr,

	&dev_attr_in1_min.attr,

	&dev_attr_in1_max.attr,

	&dev_attr_in2_input.attr,

	&dev_attr_in2_min.attr,

	&dev_attr_in2_max.attr,

	&dev_attr_in3_input.attr,

	&dev_attr_in3_min.attr,

	&dev_attr_in3_max.attr,

	&dev_attr_in4_input.attr,

	&dev_attr_in4_min.attr,

	&dev_attr_in4_max.attr,

	&dev_attr_in5_input.attr,

	&dev_attr_in5_min.attr,

	&dev_attr_in5_max.attr,

	&dev_attr_in6_input.attr,

	&dev_attr_in6_min.attr,

	&dev_attr_in6_max.attr,

	&sensor_dev_attr_in0_input.dev_attr.attr,

	&sensor_dev_attr_in0_min.dev_attr.attr,

	&sensor_dev_attr_in0_max.dev_attr.attr,

	&sensor_dev_attr_in1_input.dev_attr.attr,

	&sensor_dev_attr_in1_min.dev_attr.attr,

	&sensor_dev_attr_in1_max.dev_attr.attr,

	&sensor_dev_attr_in2_input.dev_attr.attr,

	&sensor_dev_attr_in2_min.dev_attr.attr,

	&sensor_dev_attr_in2_max.dev_attr.attr,

	&sensor_dev_attr_in3_input.dev_attr.attr,

	&sensor_dev_attr_in3_min.dev_attr.attr,

	&sensor_dev_attr_in3_max.dev_attr.attr,

	&sensor_dev_attr_in4_input.dev_attr.attr,

	&sensor_dev_attr_in4_min.dev_attr.attr,

	&sensor_dev_attr_in4_max.dev_attr.attr,

	&sensor_dev_attr_in5_input.dev_attr.attr,

	&sensor_dev_attr_in5_min.dev_attr.attr,

	&sensor_dev_attr_in5_max.dev_attr.attr,

	&sensor_dev_attr_in6_input.dev_attr.attr,

	&sensor_dev_attr_in6_min.dev_attr.attr,

	&sensor_dev_attr_in6_max.dev_attr.attr,

	&dev_attr_temp1_input.attr,

	&dev_attr_temp1_max.attr,

	&dev_attr_temp1_max_hyst.attr,

	&dev_attr_fan1_input.attr,

	&dev_attr_fan1_min.attr,

	&dev_attr_fan1_div.attr,

	&dev_attr_fan2_input.attr,

	&dev_attr_fan2_min.attr,

	&dev_attr_fan2_div.attr,

	&dev_attr_fan3_input.attr,

	&dev_attr_fan3_min.attr,

	&dev_attr_fan3_div.attr,

	&sensor_dev_attr_fan1_input.dev_attr.attr,

	&sensor_dev_attr_fan1_min.dev_attr.attr,

	&sensor_dev_attr_fan1_div.dev_attr.attr,

	&sensor_dev_attr_fan2_input.dev_attr.attr,

	&sensor_dev_attr_fan2_min.dev_attr.attr,

	&sensor_dev_attr_fan2_div.dev_attr.attr,

	&sensor_dev_attr_fan3_input.dev_attr.attr,

	&sensor_dev_attr_fan3_min.dev_attr.attr,

	&sensor_dev_attr_fan3_div.dev_attr.attr,

	&dev_attr_alarms.attr,

	&dev_attr_cpu0_vid.attr,