X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Ffan.c;h=e8165c4f162a238bb9627539e32de41e767846e0;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=14192ee55f8f1d907ad32fba8ef4f70d17a108bf;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 14192ee55..e8165c4f1 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -34,52 +34,45 @@ #include #include - #define ACPI_FAN_COMPONENT 0x00200000 #define ACPI_FAN_CLASS "fan" -#define ACPI_FAN_HID "PNP0C0B" #define ACPI_FAN_DRIVER_NAME "ACPI Fan Driver" -#define ACPI_FAN_DEVICE_NAME "Fan" #define ACPI_FAN_FILE_STATE "state" -#define ACPI_FAN_NOTIFY_STATUS 0x80 #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 = ACPI_FAN_HID, - .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"); @@ -88,7 +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); } @@ -99,29 +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); @@ -129,19 +119,17 @@ acpi_fan_write_state ( } 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"); @@ -150,7 +138,7 @@ acpi_fan_add_fs ( 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; @@ -158,11 +146,12 @@ acpi_fan_add_fs ( /* '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); @@ -172,16 +161,12 @@ acpi_fan_add_fs ( 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; } @@ -189,18 +174,15 @@ acpi_fan_remove_fs ( 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"); @@ -213,14 +195,14 @@ acpi_fan_add ( memset(fan, 0, sizeof(struct acpi_fan)); fan->handle = device->handle; - strcpy(acpi_device_name(device), ACPI_FAN_DEVICE_NAME); + strcpy(acpi_device_name(device), "Fan"); strcpy(acpi_device_class(device), ACPI_FAN_CLASS); acpi_driver_data(device) = fan; 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; } @@ -229,30 +211,26 @@ acpi_fan_add ( 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; + struct acpi_fan *fan = NULL; ACPI_FUNCTION_TRACE("acpi_fan_remove"); 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); @@ -261,11 +239,9 @@ acpi_fan_remove ( return_VALUE(0); } - -static int __init -acpi_fan_init (void) +static int __init acpi_fan_init(void) { - int result = 0; + int result = 0; ACPI_FUNCTION_TRACE("acpi_fan_init"); @@ -283,9 +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"); @@ -296,7 +270,5 @@ acpi_fan_exit (void) return_VOID; } - module_init(acpi_fan_init); module_exit(acpi_fan_exit); -