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hwmon: (adt7473) minor cleanup / refactoring 

Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This commit is contained in:
Mark M. Hoffman 2008-03-06 08:41:09 -05:00
parent 5d822e9bd9
commit 1852448652
1 changed files with 23 additions and 22 deletions
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45
drivers/hwmon/adt7473.c
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@ -422,18 +422,14 @@ static ssize_t show_volt(struct device *dev, struct device_attribute *devattr,
* number in the range -128 to 127, or as an unsigned number that must
* be offset by 64.
*/
static int decode_temp(struct adt7473_data *data, u8 raw)
static int decode_temp(u8 twos_complement, u8 raw)
{
if (data->temp_twos_complement)
return (s8)raw;
return raw - 64;
return twos_complement ? (s8)raw : raw - 64;
}
static u8 encode_temp(struct adt7473_data *data, int cooked)
static u8 encode_temp(u8 twos_complement, int cooked)
{
if (data->temp_twos_complement)
return (cooked & 0xFF);
return cooked + 64;
return twos_complement ? cooked & 0xFF : cooked + 64;
}
static ssize_t show_temp_min(struct device *dev,
@ -442,8 +438,9 @@ static ssize_t show_temp_min(struct device *dev,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7473_data *data = adt7473_update_device(dev);
return sprintf(buf, "%d\n",
1000 * decode_temp(data, data->temp_min[attr->index]));
return sprintf(buf, "%d\n", 1000 * decode_temp(
data->temp_twos_complement,
data->temp_min[attr->index]));
}
static ssize_t set_temp_min(struct device *dev,
@ -455,7 +452,7 @@ static ssize_t set_temp_min(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
int temp = simple_strtol(buf, NULL, 10) / 1000;
temp = encode_temp(data, temp);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
data->temp_min[attr->index] = temp;
@ -472,8 +469,9 @@ static ssize_t show_temp_max(struct device *dev,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7473_data *data = adt7473_update_device(dev);
return sprintf(buf, "%d\n",
1000 * decode_temp(data, data->temp_max[attr->index]));
return sprintf(buf, "%d\n", 1000 * decode_temp(
data->temp_twos_complement,
data->temp_max[attr->index]));
}
static ssize_t set_temp_max(struct device *dev,
@ -485,7 +483,7 @@ static ssize_t set_temp_max(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
int temp = simple_strtol(buf, NULL, 10) / 1000;
temp = encode_temp(data, temp);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
data->temp_max[attr->index] = temp;
@ -501,8 +499,9 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7473_data *data = adt7473_update_device(dev);
return sprintf(buf, "%d\n",
1000 * decode_temp(data, data->temp[attr->index]));
return sprintf(buf, "%d\n", 1000 * decode_temp(
data->temp_twos_complement,
data->temp[attr->index]));
}
static ssize_t show_fan_min(struct device *dev,
@ -671,8 +670,9 @@ static ssize_t show_temp_tmax(struct device *dev,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7473_data *data = adt7473_update_device(dev);
return sprintf(buf, "%d\n",
1000 * decode_temp(data, data->temp_tmax[attr->index]));
return sprintf(buf, "%d\n", 1000 * decode_temp(
data->temp_twos_complement,
data->temp_tmax[attr->index]));
}
static ssize_t set_temp_tmax(struct device *dev,
@ -684,7 +684,7 @@ static ssize_t set_temp_tmax(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
int temp = simple_strtol(buf, NULL, 10) / 1000;
temp = encode_temp(data, temp);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
data->temp_tmax[attr->index] = temp;
@ -701,8 +701,9 @@ static ssize_t show_temp_tmin(struct device *dev,
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7473_data *data = adt7473_update_device(dev);
return sprintf(buf, "%d\n",
1000 * decode_temp(data, data->temp_tmin[attr->index]));
return sprintf(buf, "%d\n", 1000 * decode_temp(
data->temp_twos_complement,
data->temp_tmin[attr->index]));
}
static ssize_t set_temp_tmin(struct device *dev,
@ -714,7 +715,7 @@ static ssize_t set_temp_tmin(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
int temp = simple_strtol(buf, NULL, 10) / 1000;
temp = encode_temp(data, temp);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
data->temp_tmin[attr->index] = temp;