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Commit 48dbd6ff authored by Guenter Roeck's avatar Guenter Roeck
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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
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Showing with 75 additions and 107 deletions
drivers/hwmon/lm77.c
View file @ 48dbd6ff
...@@ -43,17 +43,30 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, ...@@ -43,17 +43,30 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
#define LM77_REG_TEMP_MIN 0x04 #define LM77_REG_TEMP_MIN 0x04
#define LM77_REG_TEMP_MAX 0x05 #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 */ /* Each client has this additional data */
struct lm77_data { struct lm77_data {
struct device *hwmon_dev; struct device *hwmon_dev;
struct mutex update_lock; struct mutex update_lock;
char valid; char valid;
unsigned long last_updated; /* In jiffies */ unsigned long last_updated; /* In jiffies */
int temp_input; /* Temperatures */ int temp[t_num_temp]; /* index using temp_index */
int temp_crit;
int temp_min;
int temp_max;
int temp_hyst;
u8 alarms; u8 alarms;
}; };
...@@ -100,27 +113,18 @@ static struct lm77_data *lm77_update_device(struct device *dev) ...@@ -100,27 +113,18 @@ static struct lm77_data *lm77_update_device(struct device *dev)
{ {
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
struct lm77_data *data = i2c_get_clientdata(client); struct lm77_data *data = i2c_get_clientdata(client);
int i;
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2) if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) { || !data->valid) {
dev_dbg(&client->dev, "Starting lm77 update\n"); dev_dbg(&client->dev, "Starting lm77 update\n");
data->temp_input = for (i = 0; i < t_num_temp; i++) {
LM77_TEMP_FROM_REG(lm77_read_value(client, data->temp[i] =
LM77_REG_TEMP)); LM77_TEMP_FROM_REG(lm77_read_value(client,
data->temp_hyst = temp_regs[i]));
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 =
LM77_TEMP_FROM_REG(lm77_read_value(client,
LM77_REG_TEMP_MAX));
data->alarms = data->alarms =
lm77_read_value(client, LM77_REG_TEMP) & 0x0007; lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
data->last_updated = jiffies; data->last_updated = jiffies;
...@@ -134,89 +138,56 @@ static struct lm77_data *lm77_update_device(struct device *dev) ...@@ -134,89 +138,56 @@ static struct lm77_data *lm77_update_device(struct device *dev)
/* sysfs stuff */ /* sysfs stuff */
/* read routines for temperature limits */ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
#define show(value) \ char *buf)
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 sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct lm77_data *data = lm77_update_device(dev); struct lm77_data *data = lm77_update_device(dev);
return sprintf(buf, "%d\n", data->temp_crit - data->temp_hyst);
} return sprintf(buf, "%d\n", data->temp[attr->index]);
static ssize_t show_temp_min_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_min + data->temp_hyst);
} }
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); 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 */ temp = nr == t_min ? data->temp[nr] + data->temp[t_hyst] :
#define set(value, reg) \ data->temp[nr] - data->temp[t_hyst];
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; \
}
set(temp_min, LM77_REG_TEMP_MIN); return sprintf(buf, "%d\n", temp);
set(temp_max, LM77_REG_TEMP_MAX); }
/* static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
* hysteresis is stored as a relative value on the chip, so it has to be const char *buf, size_t count)
* converted first
*/
static ssize_t set_temp_crit_hyst(struct device *dev,
struct device_attribute *attr,
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 i2c_client *client = to_i2c_client(dev);
struct lm77_data *data = i2c_get_clientdata(client); struct lm77_data *data = i2c_get_clientdata(client);
unsigned long val; int nr = attr->index;
long val;
int err; int err;
err = kstrtoul(buf, 10, &val); err = kstrtol(buf, 10, &val);
if (err) if (err)
return err; return err;
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
data->temp_hyst = data->temp_crit - val; data->temp[nr] = val;
lm77_write_value(client, LM77_REG_TEMP_HYST, lm77_write_value(client, temp_regs[nr], LM77_TEMP_TO_REG(val));
LM77_TEMP_TO_REG(data->temp_hyst));
mutex_unlock(&data->update_lock); mutex_unlock(&data->update_lock);
return count; 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) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); 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, ...@@ -229,9 +200,9 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
return err; return err;
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
data->temp_crit = val; data->temp[t_hyst] = data->temp[t_crit] - val;
lm77_write_value(client, LM77_REG_TEMP_CRIT, lm77_write_value(client, LM77_REG_TEMP_HYST,
LM77_TEMP_TO_REG(data->temp_crit)); LM77_TEMP_TO_REG(data->temp[t_hyst]));
mutex_unlock(&data->update_lock); mutex_unlock(&data->update_lock);
return count; return count;
} }
...@@ -244,34 +215,31 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, ...@@ -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); return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
} }
static DEVICE_ATTR(temp1_input, S_IRUGO, static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
show_temp_input, NULL); static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp, set_temp,
static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, t_crit);
show_temp_crit, set_temp_crit); static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp,
static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, t_min);
show_temp_min, set_temp_min); static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp,
static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, t_max);
show_temp_max, set_temp_max);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst,
static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, set_temp_hyst, t_crit);
show_temp_crit_hyst, set_temp_crit_hyst); static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp_hyst, NULL, t_min);
static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
show_temp_min_hyst, NULL);
static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
show_temp_max_hyst, NULL);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2); 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_min_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
static struct attribute *lm77_attributes[] = { static struct attribute *lm77_attributes[] = {
&dev_attr_temp1_input.attr, &sensor_dev_attr_temp1_input.dev_attr.attr,
&dev_attr_temp1_crit.attr, &sensor_dev_attr_temp1_crit.dev_attr.attr,
&dev_attr_temp1_min.attr, &sensor_dev_attr_temp1_min.dev_attr.attr,
&dev_attr_temp1_max.attr, &sensor_dev_attr_temp1_max.dev_attr.attr,
&dev_attr_temp1_crit_hyst.attr, &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&dev_attr_temp1_min_hyst.attr, &sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
&dev_attr_temp1_max_hyst.attr, &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.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_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr, &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
......
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