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path: root/drivers/acpi/fan.c
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Diffstat (limited to 'drivers/acpi/fan.c')
-rw-r--r--drivers/acpi/fan.c125
1 files changed, 54 insertions, 71 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 2ee1d061013f..e8165c4f162a 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -34,49 +34,45 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-
#define ACPI_FAN_COMPONENT 0x00200000
#define ACPI_FAN_CLASS "fan"
#define ACPI_FAN_DRIVER_NAME "ACPI Fan Driver"
#define ACPI_FAN_FILE_STATE "state"
#define _COMPONENT ACPI_FAN_COMPONENT
-ACPI_MODULE_NAME ("acpi_fan")
+ACPI_MODULE_NAME("acpi_fan")
-MODULE_AUTHOR("Paul Diefenbaugh");
+ MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION(ACPI_FAN_DRIVER_NAME);
MODULE_LICENSE("GPL");
-static int acpi_fan_add (struct acpi_device *device);
-static int acpi_fan_remove (struct acpi_device *device, int type);
+static int acpi_fan_add(struct acpi_device *device);
+static int acpi_fan_remove(struct acpi_device *device, int type);
static struct acpi_driver acpi_fan_driver = {
- .name = ACPI_FAN_DRIVER_NAME,
- .class = ACPI_FAN_CLASS,
- .ids = "PNP0C0B",
- .ops = {
- .add = acpi_fan_add,
- .remove = acpi_fan_remove,
- },
+ .name = ACPI_FAN_DRIVER_NAME,
+ .class = ACPI_FAN_CLASS,
+ .ids = "PNP0C0B",
+ .ops = {
+ .add = acpi_fan_add,
+ .remove = acpi_fan_remove,
+ },
};
struct acpi_fan {
- acpi_handle handle;
+ acpi_handle handle;
};
-
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
-static struct proc_dir_entry *acpi_fan_dir;
-
+static struct proc_dir_entry *acpi_fan_dir;
-static int
-acpi_fan_read_state(struct seq_file *seq, void *offset)
+static int acpi_fan_read_state(struct seq_file *seq, void *offset)
{
- struct acpi_fan *fan = seq->private;
- int state = 0;
+ struct acpi_fan *fan = seq->private;
+ int state = 0;
ACPI_FUNCTION_TRACE("acpi_fan_read_state");
@@ -85,7 +81,7 @@ acpi_fan_read_state(struct seq_file *seq, void *offset)
seq_printf(seq, "status: ERROR\n");
else
seq_printf(seq, "status: %s\n",
- !state?"on":"off");
+ !state ? "on" : "off");
}
return_VALUE(0);
}
@@ -96,26 +92,26 @@ static int acpi_fan_state_open_fs(struct inode *inode, struct file *file)
}
static ssize_t
-acpi_fan_write_state(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
+acpi_fan_write_state(struct file *file, const char __user * buffer,
+ size_t count, loff_t * ppos)
{
- int result = 0;
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_fan *fan = (struct acpi_fan *) m->private;
- char state_string[12] = {'\0'};
+ int result = 0;
+ struct seq_file *m = (struct seq_file *)file->private_data;
+ struct acpi_fan *fan = (struct acpi_fan *)m->private;
+ char state_string[12] = { '\0' };
ACPI_FUNCTION_TRACE("acpi_fan_write_state");
if (!fan || (count > sizeof(state_string) - 1))
return_VALUE(-EINVAL);
-
+
if (copy_from_user(state_string, buffer, count))
return_VALUE(-EFAULT);
-
+
state_string[count] = '\0';
-
- result = acpi_bus_set_power(fan->handle,
- simple_strtoul(state_string, NULL, 0));
+
+ result = acpi_bus_set_power(fan->handle,
+ simple_strtoul(state_string, NULL, 0));
if (result)
return_VALUE(result);
@@ -123,18 +119,17 @@ acpi_fan_write_state(struct file *file, const char __user *buffer,
}
static struct file_operations acpi_fan_state_ops = {
- .open = acpi_fan_state_open_fs,
- .read = seq_read,
- .write = acpi_fan_write_state,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_fan_state_open_fs,
+ .read = seq_read,
+ .write = acpi_fan_write_state,
+ .llseek = seq_lseek,
+ .release = single_release,
.owner = THIS_MODULE,
};
-static int
-acpi_fan_add_fs(struct acpi_device *device)
+static int acpi_fan_add_fs(struct acpi_device *device)
{
- struct proc_dir_entry *entry = NULL;
+ struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_fan_add_fs");
@@ -143,7 +138,7 @@ acpi_fan_add_fs(struct acpi_device *device)
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_fan_dir);
+ acpi_fan_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
acpi_device_dir(device)->owner = THIS_MODULE;
@@ -151,11 +146,12 @@ acpi_fan_add_fs(struct acpi_device *device)
/* 'status' [R/W] */
entry = create_proc_entry(ACPI_FAN_FILE_STATE,
- S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_FAN_FILE_STATE));
+ "Unable to create '%s' fs entry\n",
+ ACPI_FAN_FILE_STATE));
else {
entry->proc_fops = &acpi_fan_state_ops;
entry->data = acpi_driver_data(device);
@@ -165,15 +161,12 @@ acpi_fan_add_fs(struct acpi_device *device)
return_VALUE(0);
}
-
-static int
-acpi_fan_remove_fs(struct acpi_device *device)
+static int acpi_fan_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_fan_remove_fs");
if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_FAN_FILE_STATE,
- acpi_device_dir(device));
+ remove_proc_entry(ACPI_FAN_FILE_STATE, acpi_device_dir(device));
remove_proc_entry(acpi_device_bid(device), acpi_fan_dir);
acpi_device_dir(device) = NULL;
}
@@ -181,17 +174,15 @@ acpi_fan_remove_fs(struct acpi_device *device)
return_VALUE(0);
}
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-static int
-acpi_fan_add(struct acpi_device *device)
+static int acpi_fan_add(struct acpi_device *device)
{
- int result = 0;
- struct acpi_fan *fan = NULL;
- int state = 0;
+ int result = 0;
+ struct acpi_fan *fan = NULL;
+ int state = 0;
ACPI_FUNCTION_TRACE("acpi_fan_add");
@@ -211,7 +202,7 @@ acpi_fan_add(struct acpi_device *device)
result = acpi_bus_get_power(fan->handle, &state);
if (result) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error reading power state\n"));
+ "Error reading power state\n"));
goto end;
}
@@ -220,19 +211,17 @@ acpi_fan_add(struct acpi_device *device)
goto end;
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
- acpi_device_name(device), acpi_device_bid(device),
- !device->power.state?"on":"off");
+ acpi_device_name(device), acpi_device_bid(device),
+ !device->power.state ? "on" : "off");
-end:
+ end:
if (result)
kfree(fan);
return_VALUE(result);
}
-
-static int
-acpi_fan_remove(struct acpi_device *device, int type)
+static int acpi_fan_remove(struct acpi_device *device, int type)
{
struct acpi_fan *fan = NULL;
@@ -241,7 +230,7 @@ acpi_fan_remove(struct acpi_device *device, int type)
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
- fan = (struct acpi_fan *) acpi_driver_data(device);
+ fan = (struct acpi_fan *)acpi_driver_data(device);
acpi_fan_remove_fs(device);
@@ -250,9 +239,7 @@ acpi_fan_remove(struct acpi_device *device, int type)
return_VALUE(0);
}
-
-static int __init
-acpi_fan_init(void)
+static int __init acpi_fan_init(void)
{
int result = 0;
@@ -272,9 +259,7 @@ acpi_fan_init(void)
return_VALUE(0);
}
-
-static void __exit
-acpi_fan_exit(void)
+static void __exit acpi_fan_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_fan_exit");
@@ -285,7 +270,5 @@ acpi_fan_exit(void)
return_VOID;
}
-
module_init(acpi_fan_init);
module_exit(acpi_fan_exit);
-
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