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Commit 48dbd6ff authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (lm77) Drop function macros 



Function macros make the code harder to read and increase code size,
so drop them.

Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 50bf4650

drivers/hwmon/lm77.c

+75 −107
Original line number Diff line number Diff line
@@ -43,17 +43,30 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 
#define LM77_REG_TEMP_MIN	0x04

#define LM77_REG_TEMP_MAX	0x05



enum temp_index {

	t_input = 0,

	t_crit,

	t_min,

	t_max,

	t_hyst,

	t_num_temp

};



static const u8 temp_regs[t_num_temp] = {

	[t_input] = LM77_REG_TEMP,

	[t_min] = LM77_REG_TEMP_MIN,

	[t_max] = LM77_REG_TEMP_MAX,

	[t_crit] = LM77_REG_TEMP_CRIT,

	[t_hyst] = LM77_REG_TEMP_HYST,

};



/* Each client has this additional data */

struct lm77_data {

	struct device		*hwmon_dev;

	struct mutex		update_lock;

	char			valid;

	unsigned long		last_updated;	/* In jiffies */

	int			temp_input;	/* Temperatures */

	int			temp_crit;

	int			temp_min;

	int			temp_max;

	int			temp_hyst;

	int			temp[t_num_temp]; /* index using temp_index */

	u8			alarms;

};
@@ -100,27 +113,18 @@ static struct lm77_data *lm77_update_device(struct device *dev) 
{

	struct i2c_client *client = to_i2c_client(dev);

	struct lm77_data *data = i2c_get_clientdata(client);

	int i;



	mutex_lock(&data->update_lock);



	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)

	    || !data->valid) {

		dev_dbg(&client->dev, "Starting lm77 update\n");

		data->temp_input =

			LM77_TEMP_FROM_REG(lm77_read_value(client,

							   LM77_REG_TEMP));

		data->temp_hyst =

			LM77_TEMP_FROM_REG(lm77_read_value(client,

							   LM77_REG_TEMP_HYST));

		data->temp_crit =

			LM77_TEMP_FROM_REG(lm77_read_value(client,

							   LM77_REG_TEMP_CRIT));

		data->temp_min =

			LM77_TEMP_FROM_REG(lm77_read_value(client,

							   LM77_REG_TEMP_MIN));

		data->temp_max =

		for (i = 0; i < t_num_temp; i++) {

			data->temp[i] =

			  LM77_TEMP_FROM_REG(lm77_read_value(client,

							   LM77_REG_TEMP_MAX));

							     temp_regs[i]));

		}

		data->alarms =

			lm77_read_value(client, LM77_REG_TEMP) & 0x0007;

		data->last_updated = jiffies;
@@ -134,89 +138,56 @@ static struct lm77_data *lm77_update_device(struct device *dev) 


/* sysfs stuff */



/* read routines for temperature limits */

#define show(value)	\

static ssize_t show_##value(struct device *dev,			\

			    struct device_attribute *attr,	\

			    char *buf)				\

{								\

	struct lm77_data *data = lm77_update_device(dev);	\

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

}



show(temp_input);

show(temp_crit);

show(temp_min);

show(temp_max);



/* read routines for hysteresis values */

static ssize_t show_temp_crit_hyst(struct device *dev,

				   struct device_attribute *attr, char *buf)

{

	struct lm77_data *data = lm77_update_device(dev);

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

}

static ssize_t show_temp_min_hyst(struct device *dev,

				  struct device_attribute *attr, char *buf)

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

			 char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);

	struct lm77_data *data = lm77_update_device(dev);

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



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

}

static ssize_t show_temp_max_hyst(struct device *dev,

				  struct device_attribute *attr, char *buf)



static ssize_t show_temp_hyst(struct device *dev,

			      struct device_attribute *devattr, char *buf)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);

	struct lm77_data *data = lm77_update_device(dev);

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

}

	int nr = attr->index;

	int temp;



/* write routines */

#define set(value, reg)	\

static ssize_t set_##value(struct device *dev, struct device_attribute *attr, \

			   const char *buf, size_t count)		\

{									\

	struct i2c_client *client = to_i2c_client(dev);			\

	struct lm77_data *data = i2c_get_clientdata(client);		\

	long val;							\

	int err = kstrtol(buf, 10, &val);				\

	if (err)							\

		return err;						\

									\

	mutex_lock(&data->update_lock);					\

	data->value = val;						\

	lm77_write_value(client, reg, LM77_TEMP_TO_REG(data->value));	\

	mutex_unlock(&data->update_lock);				\

	return count;							\

}

	temp = nr == t_min ? data->temp[nr] + data->temp[t_hyst] :

			     data->temp[nr] - data->temp[t_hyst];



set(temp_min, LM77_REG_TEMP_MIN);

set(temp_max, LM77_REG_TEMP_MAX);

	return sprintf(buf, "%d\n", temp);

}



/*

 * hysteresis is stored as a relative value on the chip, so it has to be

 * converted first

 */

static ssize_t set_temp_crit_hyst(struct device *dev,

				  struct device_attribute *attr,

static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,

			const char *buf, size_t count)

{

	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);

	struct i2c_client *client = to_i2c_client(dev);

	struct lm77_data *data = i2c_get_clientdata(client);

	unsigned long val;

	int nr = attr->index;

	long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->temp_hyst = data->temp_crit - val;

	lm77_write_value(client, LM77_REG_TEMP_HYST,

			 LM77_TEMP_TO_REG(data->temp_hyst));

	data->temp[nr] = val;

	lm77_write_value(client, temp_regs[nr], LM77_TEMP_TO_REG(val));

	mutex_unlock(&data->update_lock);

	return count;

}



static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,

/*

 * hysteresis is stored as a relative value on the chip, so it has to be

 * converted first.

 */

static ssize_t set_temp_hyst(struct device *dev,

			     struct device_attribute *devattr,

			     const char *buf, size_t count)

{

	struct i2c_client *client = to_i2c_client(dev);
@@ -229,9 +200,9 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 
		return err;



	mutex_lock(&data->update_lock);

	data->temp_crit = val;

	lm77_write_value(client, LM77_REG_TEMP_CRIT,

			 LM77_TEMP_TO_REG(data->temp_crit));

	data->temp[t_hyst] = data->temp[t_crit] - val;

	lm77_write_value(client, LM77_REG_TEMP_HYST,

			 LM77_TEMP_TO_REG(data->temp[t_hyst]));

	mutex_unlock(&data->update_lock);

	return count;

}
@@ -244,34 +215,31 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 
	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);

}



static DEVICE_ATTR(temp1_input, S_IRUGO,

		   show_temp_input, NULL);

static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,

		   show_temp_crit, set_temp_crit);

static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,

		   show_temp_min, set_temp_min);

static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,

		   show_temp_max, set_temp_max);



static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,

		   show_temp_crit_hyst, set_temp_crit_hyst);

static DEVICE_ATTR(temp1_min_hyst, S_IRUGO,

		   show_temp_min_hyst, NULL);

static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,

		   show_temp_max_hyst, NULL);

static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);

static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,

			  t_crit);

static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp,

			  t_min);

static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp,

			  t_max);



static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst,

			  set_temp_hyst, t_crit);

static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp_hyst, NULL, t_min);

static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);



static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);

static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);

static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);



static struct attribute *lm77_attributes[] = {

	&dev_attr_temp1_input.attr,

	&dev_attr_temp1_crit.attr,

	&dev_attr_temp1_min.attr,

	&dev_attr_temp1_max.attr,

	&dev_attr_temp1_crit_hyst.attr,

	&dev_attr_temp1_min_hyst.attr,

	&dev_attr_temp1_max_hyst.attr,

	&sensor_dev_attr_temp1_input.dev_attr.attr,

	&sensor_dev_attr_temp1_crit.dev_attr.attr,

	&sensor_dev_attr_temp1_min.dev_attr.attr,

	&sensor_dev_attr_temp1_max.dev_attr.attr,

	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,

	&sensor_dev_attr_temp1_min_hyst.dev_attr.attr,

	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,

	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,

	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,

	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,