#include <linux/err.h>
#include <linux/init.h>
#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
#include <asm/io.h>
struct sis5595_data {
struct i2c_client client;
struct class_device *class_dev;
- struct semaphore lock;
+ struct mutex lock;
- struct semaphore update_lock;
+ struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
char maxins; /* == 3 if temp enabled, otherwise == 4 */
static int sis5595_detect(struct i2c_adapter *adapter);
static int sis5595_detach_client(struct i2c_client *client);
-static int sis5595_read_value(struct i2c_client *client, u8 register);
-static int sis5595_write_value(struct i2c_client *client, u8 register, u8 value);
+static int sis5595_read_value(struct i2c_client *client, u8 reg);
+static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value);
static struct sis5595_data *sis5595_update_device(struct device *dev);
static void sis5595_init_client(struct i2c_client *client);
static struct i2c_driver sis5595_driver = {
.driver = {
+ .owner = THIS_MODULE,
.name = "sis5595",
},
.attach_adapter = sis5595_detect,
struct sis5595_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val);
sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
struct sis5595_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val);
sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
struct sis5595_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_over = TEMP_TO_REG(val);
sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
struct sis5595_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_hyst = TEMP_TO_REG(val);
sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
struct sis5595_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
/* 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 suprise; the user doesn't expect the fan minimum to change just
+ 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)
unsigned long val = simple_strtoul(buf, NULL, 10);
int reg;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
reg = sis5595_read_value(client, SIS5595_REG_FANDIV);
default:
dev_err(&client->dev, "fan_div value %ld not "
"supported. Choose one of 1, 2, 4 or 8!\n", val);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return -EINVAL;
}
data->fan_min[nr] =
FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
return sprintf(buf, "%d\n", data->alarms);
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static struct attribute *sis5595_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_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_alarms.attr,
+ NULL
+};
+
+static const struct attribute_group sis5595_group = {
+ .attrs = sis5595_attributes,
+};
+
+static struct attribute *sis5595_attributes_opt[] = {
+ &dev_attr_in4_input.attr,
+ &dev_attr_in4_min.attr,
+ &dev_attr_in4_max.attr,
+
+ &dev_attr_temp1_input.attr,
+ &dev_attr_temp1_max.attr,
+ &dev_attr_temp1_max_hyst.attr,
+ NULL
+};
+
+static const struct attribute_group sis5595_group_opt = {
+ .attrs = sis5595_attributes_opt,
+};
/* This is called when the module is loaded */
static int sis5595_detect(struct i2c_adapter *adapter)
new_client = &data->client;
new_client->addr = address;
- init_MUTEX(&data->lock);
+ mutex_init(&data->lock);
i2c_set_clientdata(new_client, data);
new_client->adapter = adapter;
new_client->driver = &sis5595_driver;
strlcpy(new_client->name, "sis5595", I2C_NAME_SIZE);
data->valid = 0;
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
}
/* Register sysfs hooks */
+ if ((err = sysfs_create_group(&new_client->dev.kobj, &sis5595_group)))
+ goto exit_detach;
+ if (data->maxins == 4) {
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_in4_input))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_in4_min))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_in4_max)))
+ goto exit_remove_files;
+ } else {
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_temp1_input))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_temp1_max))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_temp1_max_hyst)))
+ goto exit_remove_files;
+ }
+
data->class_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev);
- goto exit_detach;
+ goto exit_remove_files;
}
- device_create_file(&new_client->dev, &dev_attr_in0_input);
- device_create_file(&new_client->dev, &dev_attr_in0_min);
- device_create_file(&new_client->dev, &dev_attr_in0_max);
- device_create_file(&new_client->dev, &dev_attr_in1_input);
- device_create_file(&new_client->dev, &dev_attr_in1_min);
- device_create_file(&new_client->dev, &dev_attr_in1_max);
- device_create_file(&new_client->dev, &dev_attr_in2_input);
- device_create_file(&new_client->dev, &dev_attr_in2_min);
- device_create_file(&new_client->dev, &dev_attr_in2_max);
- device_create_file(&new_client->dev, &dev_attr_in3_input);
- device_create_file(&new_client->dev, &dev_attr_in3_min);
- device_create_file(&new_client->dev, &dev_attr_in3_max);
- if (data->maxins == 4) {
- device_create_file(&new_client->dev, &dev_attr_in4_input);
- device_create_file(&new_client->dev, &dev_attr_in4_min);
- device_create_file(&new_client->dev, &dev_attr_in4_max);
- }
- device_create_file(&new_client->dev, &dev_attr_fan1_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_min);
- device_create_file(&new_client->dev, &dev_attr_fan1_div);
- device_create_file(&new_client->dev, &dev_attr_fan2_input);
- device_create_file(&new_client->dev, &dev_attr_fan2_min);
- device_create_file(&new_client->dev, &dev_attr_fan2_div);
- device_create_file(&new_client->dev, &dev_attr_alarms);
- if (data->maxins == 3) {
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
- }
return 0;
+exit_remove_files:
+ sysfs_remove_group(&new_client->dev.kobj, &sis5595_group);
+ sysfs_remove_group(&new_client->dev.kobj, &sis5595_group_opt);
exit_detach:
i2c_detach_client(new_client);
exit_free:
int err;
hwmon_device_unregister(data->class_dev);
+ sysfs_remove_group(&client->dev.kobj, &sis5595_group);
+ sysfs_remove_group(&client->dev.kobj, &sis5595_group_opt);
if ((err = i2c_detach_client(client)))
return err;
int res;
struct sis5595_data *data = i2c_get_clientdata(client);
- down(&data->lock);
+ mutex_lock(&data->lock);
outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET);
- up(&data->lock);
+ mutex_unlock(&data->lock);
return res;
}
static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value)
{
struct sis5595_data *data = i2c_get_clientdata(client);
- down(&data->lock);
+ mutex_lock(&data->lock);
outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET);
- up(&data->lock);
+ mutex_unlock(&data->lock);
return 0;
}
struct sis5595_data *data = i2c_get_clientdata(client);
int i;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
git://git.onelab.eu / linux-2.6.git / blobdiff