diff options
| -rw-r--r-- | drivers/acpi/button.c | 245 |
1 files changed, 1 insertions, 244 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index ec4430e..0f45d45 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -26,9 +26,6 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> -#include <linux/types.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -36,9 +33,6 @@ #define ACPI_BUTTON_COMPONENT 0x00080000 #define ACPI_BUTTON_DRIVER_NAME "ACPI Button Driver" #define ACPI_BUTTON_CLASS "button" -#define ACPI_BUTTON_FILE_INFO "info" -#define ACPI_BUTTON_FILE_STATE "state" -#define ACPI_BUTTON_TYPE_UNKNOWN 0x00 #define ACPI_BUTTON_NOTIFY_STATUS 0x80 #define ACPI_BUTTON_SUBCLASS_POWER "power" @@ -70,8 +64,6 @@ MODULE_LICENSE("GPL"); static int acpi_button_add (struct acpi_device *device); static int acpi_button_remove (struct acpi_device *device, int type); -static int acpi_button_info_open_fs(struct inode *inode, struct file *file); -static int acpi_button_state_open_fs(struct inode *inode, struct file *file); static struct acpi_driver acpi_button_driver = { .name = ACPI_BUTTON_DRIVER_NAME, @@ -90,187 +82,6 @@ struct acpi_button { unsigned long pushed; }; -static struct file_operations acpi_button_info_fops = { - .open = acpi_button_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static struct file_operations acpi_button_state_fops = { - .open = acpi_button_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ - -static struct proc_dir_entry *acpi_button_dir; - -static int acpi_button_info_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_button *button = (struct acpi_button *) seq->private; - - ACPI_FUNCTION_TRACE("acpi_button_info_seq_show"); - - if (!button || !button->device) - return_VALUE(0); - - seq_printf(seq, "type: %s\n", - acpi_device_name(button->device)); - - return_VALUE(0); -} - -static int acpi_button_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_button_info_seq_show, PDE(inode)->data); -} - -static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_button *button = (struct acpi_button *) seq->private; - acpi_status status; - unsigned long state; - - ACPI_FUNCTION_TRACE("acpi_button_state_seq_show"); - - if (!button || !button->device) - return_VALUE(0); - - status = acpi_evaluate_integer(button->handle,"_LID",NULL,&state); - if (ACPI_FAILURE(status)) { - seq_printf(seq, "state: unsupported\n"); - } - else{ - seq_printf(seq, "state: %s\n", (state ? "open" : "closed")); - } - - return_VALUE(0); -} - -static int acpi_button_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); -} - -static int -acpi_button_add_fs ( - struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - struct acpi_button *button = NULL; - - ACPI_FUNCTION_TRACE("acpi_button_add_fs"); - - if (!device || !acpi_driver_data(device)) - return_VALUE(-EINVAL); - - button = acpi_driver_data(device); - - switch (button->type) { - case ACPI_BUTTON_TYPE_POWER: - case ACPI_BUTTON_TYPE_POWERF: - entry = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, - acpi_button_dir); - break; - case ACPI_BUTTON_TYPE_SLEEP: - case ACPI_BUTTON_TYPE_SLEEPF: - entry = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, - acpi_button_dir); - break; - case ACPI_BUTTON_TYPE_LID: - entry = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID, - acpi_button_dir); - break; - } - - if (!entry) - return_VALUE(-ENODEV); - entry->owner = THIS_MODULE; - - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry); - if (!acpi_device_dir(device)) - return_VALUE(-ENODEV); - acpi_device_dir(device)->owner = THIS_MODULE; - - /* 'info' [R] */ - entry = create_proc_entry(ACPI_BUTTON_FILE_INFO, - S_IRUGO, acpi_device_dir(device)); - if (!entry) - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BUTTON_FILE_INFO)); - else { - entry->proc_fops = &acpi_button_info_fops; - entry->data = acpi_driver_data(device); - entry->owner = THIS_MODULE; - } - - /* show lid state [R] */ - if (button->type == ACPI_BUTTON_TYPE_LID) { - entry = create_proc_entry(ACPI_BUTTON_FILE_STATE, - S_IRUGO, acpi_device_dir(device)); - if (!entry) - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BUTTON_FILE_INFO)); - else { - entry->proc_fops = &acpi_button_state_fops; - entry->data = acpi_driver_data(device); - entry->owner = THIS_MODULE; - } - } - - return_VALUE(0); -} - - -static int -acpi_button_remove_fs ( - struct acpi_device *device) -{ - struct acpi_button *button = NULL; - - ACPI_FUNCTION_TRACE("acpi_button_remove_fs"); - - button = acpi_driver_data(device); - if (acpi_device_dir(device)) { - if (button->type == ACPI_BUTTON_TYPE_LID) - remove_proc_entry(ACPI_BUTTON_FILE_STATE, - acpi_device_dir(device)); - remove_proc_entry(ACPI_BUTTON_FILE_INFO, - acpi_device_dir(device)); - - remove_proc_entry(acpi_device_bid(device), - acpi_device_dir(device)->parent); - - - switch (button->type) { - case ACPI_BUTTON_TYPE_POWER: - case ACPI_BUTTON_TYPE_POWERF: - remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, - acpi_button_dir); - break; - case ACPI_BUTTON_TYPE_SLEEP: - case ACPI_BUTTON_TYPE_SLEEPF: - remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, - acpi_button_dir); - break; - case ACPI_BUTTON_TYPE_LID: - remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, - acpi_button_dir); - break; - } - acpi_device_dir(device) = NULL; - } - - return_VALUE(0); -} - - /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -310,8 +121,7 @@ acpi_button_notify_fixed ( ACPI_FUNCTION_TRACE("acpi_button_notify_fixed"); - if (!button) - return_ACPI_STATUS(AE_BAD_PARAMETER); + BUG_ON(!button); acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button); @@ -327,10 +137,6 @@ acpi_button_add ( acpi_status status = AE_OK; struct acpi_button *button = NULL; - static struct acpi_device *power_button; - static struct acpi_device *sleep_button; - static struct acpi_device *lid_button; - ACPI_FUNCTION_TRACE("acpi_button_add"); if (!device) @@ -391,42 +197,6 @@ acpi_button_add ( goto end; } - /* - * Ensure only one button of each type is used. - */ - switch (button->type) { - case ACPI_BUTTON_TYPE_POWER: - case ACPI_BUTTON_TYPE_POWERF: - if (!power_button) - power_button = device; - else { - kfree(button); - return_VALUE(-ENODEV); - } - break; - case ACPI_BUTTON_TYPE_SLEEP: - case ACPI_BUTTON_TYPE_SLEEPF: - if (!sleep_button) - sleep_button = device; - else { - kfree(button); - return_VALUE(-ENODEV); - } - break; - case ACPI_BUTTON_TYPE_LID: - if (!lid_button) - lid_button = device; - else { - kfree(button); - return_VALUE(-ENODEV); - } - break; - } - - result = acpi_button_add_fs(device); - if (result) - goto end; - switch (button->type) { case ACPI_BUTTON_TYPE_POWERF: status = acpi_install_fixed_event_handler ( @@ -470,7 +240,6 @@ acpi_button_add ( end: if (result) { - acpi_button_remove_fs(device); kfree(button); } @@ -511,8 +280,6 @@ acpi_button_remove (struct acpi_device *device, int type) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error removing notify handler\n")); - acpi_button_remove_fs(device); - kfree(button); return_VALUE(0); @@ -526,21 +293,14 @@ acpi_button_init (void) ACPI_FUNCTION_TRACE("acpi_button_init"); - acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir); - if (!acpi_button_dir) - return_VALUE(-ENODEV); - acpi_button_dir->owner = THIS_MODULE; - result = acpi_bus_register_driver(&acpi_button_driver); if (result < 0) { - remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); return_VALUE(-ENODEV); } return_VALUE(0); } - static void __exit acpi_button_exit (void) { @@ -548,11 +308,8 @@ acpi_button_exit (void) acpi_bus_unregister_driver(&acpi_button_driver); - remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); - return_VOID; } - module_init(acpi_button_init); module_exit(acpi_button_exit); |
