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path: root/drivers/acpi/button.c
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Diffstat (limited to 'drivers/acpi/button.c')
-rw-r--r--drivers/acpi/button.c274
1 files changed, 123 insertions, 151 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 8162fd0c21a..4b6d9f0096a 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -32,7 +32,6 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-
#define ACPI_BUTTON_COMPONENT 0x00080000
#define ACPI_BUTTON_DRIVER_NAME "ACPI Button Driver"
#define ACPI_BUTTON_CLASS "button"
@@ -42,7 +41,7 @@
#define ACPI_BUTTON_NOTIFY_STATUS 0x80
#define ACPI_BUTTON_SUBCLASS_POWER "power"
-#define ACPI_BUTTON_HID_POWER "PNP0C0C"
+#define ACPI_BUTTON_HID_POWER "PNP0C0C"
#define ACPI_BUTTON_DEVICE_NAME_POWER "Power Button (CM)"
#define ACPI_BUTTON_DEVICE_NAME_POWERF "Power Button (FF)"
#define ACPI_BUTTON_TYPE_POWER 0x01
@@ -61,65 +60,65 @@
#define ACPI_BUTTON_TYPE_LID 0x05
#define _COMPONENT ACPI_BUTTON_COMPONENT
-ACPI_MODULE_NAME ("acpi_button")
+ACPI_MODULE_NAME("acpi_button")
-MODULE_AUTHOR("Paul Diefenbaugh");
+ MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION(ACPI_BUTTON_DRIVER_NAME);
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_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,
- .class = ACPI_BUTTON_CLASS,
- .ids = "ACPI_FPB,ACPI_FSB,PNP0C0D,PNP0C0C,PNP0C0E",
- .ops = {
- .add = acpi_button_add,
- .remove = acpi_button_remove,
- },
+ .name = ACPI_BUTTON_DRIVER_NAME,
+ .class = ACPI_BUTTON_CLASS,
+ .ids = "ACPI_FPB,ACPI_FSB,PNP0C0D,PNP0C0C,PNP0C0E",
+ .ops = {
+ .add = acpi_button_add,
+ .remove = acpi_button_remove,
+ },
};
struct acpi_button {
- acpi_handle handle;
- struct acpi_device *device; /* Fixed button kludge */
- u8 type;
- unsigned long pushed;
+ acpi_handle handle;
+ struct acpi_device *device; /* Fixed button kludge */
+ u8 type;
+ 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,
+ .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,
+ .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 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;
+ 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));
+ seq_printf(seq, "type: %s\n",
+ acpi_device_name(button->device));
return_VALUE(0);
}
@@ -128,24 +127,24 @@ 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;
+ 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);
+ 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"));
+ } else {
+ seq_printf(seq, "state: %s\n",
+ (state ? "open" : "closed"));
}
return_VALUE(0);
@@ -160,12 +159,10 @@ static struct proc_dir_entry *acpi_power_dir;
static struct proc_dir_entry *acpi_sleep_dir;
static struct proc_dir_entry *acpi_lid_dir;
-static int
-acpi_button_add_fs (
- struct acpi_device *device)
+static int acpi_button_add_fs(struct acpi_device *device)
{
- struct proc_dir_entry *entry = NULL;
- struct acpi_button *button = NULL;
+ struct proc_dir_entry *entry = NULL;
+ struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_add_fs");
@@ -178,21 +175,21 @@ acpi_button_add_fs (
case ACPI_BUTTON_TYPE_POWER:
case ACPI_BUTTON_TYPE_POWERF:
if (!acpi_power_dir)
- acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER,
- acpi_button_dir);
+ acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER,
+ acpi_button_dir);
entry = acpi_power_dir;
break;
case ACPI_BUTTON_TYPE_SLEEP:
case ACPI_BUTTON_TYPE_SLEEPF:
if (!acpi_sleep_dir)
- acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP,
- acpi_button_dir);
+ acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP,
+ acpi_button_dir);
entry = acpi_sleep_dir;
break;
case ACPI_BUTTON_TYPE_LID:
if (!acpi_lid_dir)
- acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID,
- acpi_button_dir);
+ acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID,
+ acpi_button_dir);
entry = acpi_lid_dir;
break;
}
@@ -208,11 +205,11 @@ acpi_button_add_fs (
/* 'info' [R] */
entry = create_proc_entry(ACPI_BUTTON_FILE_INFO,
- S_IRUGO, acpi_device_dir(device));
+ 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));
+ "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);
@@ -222,11 +219,11 @@ acpi_button_add_fs (
/* 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));
+ 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));
+ "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);
@@ -237,12 +234,9 @@ acpi_button_add_fs (
return_VALUE(0);
}
-
-static int
-acpi_button_remove_fs (
- struct acpi_device *device)
+static int acpi_button_remove_fs(struct acpi_device *device)
{
- struct acpi_button *button = NULL;
+ struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_remove_fs");
@@ -250,30 +244,25 @@ acpi_button_remove_fs (
if (acpi_device_dir(device)) {
if (button->type == ACPI_BUTTON_TYPE_LID)
remove_proc_entry(ACPI_BUTTON_FILE_STATE,
- acpi_device_dir(device));
+ acpi_device_dir(device));
remove_proc_entry(ACPI_BUTTON_FILE_INFO,
- acpi_device_dir(device));
+ acpi_device_dir(device));
remove_proc_entry(acpi_device_bid(device),
- acpi_device_dir(device)->parent);
+ acpi_device_dir(device)->parent);
acpi_device_dir(device) = NULL;
}
return_VALUE(0);
}
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-static void
-acpi_button_notify (
- acpi_handle handle,
- u32 event,
- void *data)
+static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_button *button = (struct acpi_button *) data;
+ struct acpi_button *button = (struct acpi_button *)data;
ACPI_FUNCTION_TRACE("acpi_button_notify");
@@ -282,24 +271,22 @@ acpi_button_notify (
switch (event) {
case ACPI_BUTTON_NOTIFY_STATUS:
- acpi_bus_generate_event(button->device, event, ++button->pushed);
+ acpi_bus_generate_event(button->device, event,
+ ++button->pushed);
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
+ "Unsupported event [0x%x]\n", event));
break;
}
return_VOID;
}
-
-static acpi_status
-acpi_button_notify_fixed (
- void *data)
+static acpi_status acpi_button_notify_fixed(void *data)
{
- struct acpi_button *button = (struct acpi_button *) data;
-
+ struct acpi_button *button = (struct acpi_button *)data;
+
ACPI_FUNCTION_TRACE("acpi_button_notify_fixed");
if (!button)
@@ -310,14 +297,11 @@ acpi_button_notify_fixed (
return_ACPI_STATUS(AE_OK);
}
-
-static int
-acpi_button_add (
- struct acpi_device *device)
+static int acpi_button_add(struct acpi_device *device)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_button *button = NULL;
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_add");
@@ -339,42 +323,34 @@ acpi_button_add (
*/
if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) {
button->type = ACPI_BUTTON_TYPE_POWER;
- strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_POWER);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER);
+ sprintf(acpi_device_class(device), "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER);
- }
- else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) {
+ } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) {
button->type = ACPI_BUTTON_TYPE_POWERF;
strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_POWERF);
- sprintf(acpi_device_class(device), "%s/%s",
+ ACPI_BUTTON_DEVICE_NAME_POWERF);
+ sprintf(acpi_device_class(device), "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER);
- }
- else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) {
+ } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) {
button->type = ACPI_BUTTON_TYPE_SLEEP;
- strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_SLEEP);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP);
+ sprintf(acpi_device_class(device), "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP);
- }
- else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) {
+ } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) {
button->type = ACPI_BUTTON_TYPE_SLEEPF;
strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_SLEEPF);
- sprintf(acpi_device_class(device), "%s/%s",
+ ACPI_BUTTON_DEVICE_NAME_SLEEPF);
+ sprintf(acpi_device_class(device), "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP);
- }
- else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) {
+ } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) {
button->type = ACPI_BUTTON_TYPE_LID;
- strcpy(acpi_device_name(device),
- ACPI_BUTTON_DEVICE_NAME_LID);
- sprintf(acpi_device_class(device), "%s/%s",
+ strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID);
+ sprintf(acpi_device_class(device), "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID);
- }
- else {
+ } else {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unsupported hid [%s]\n",
- acpi_device_hid(device)));
+ acpi_device_hid(device)));
result = -ENODEV;
goto end;
}
@@ -385,46 +361,46 @@ acpi_button_add (
switch (button->type) {
case ACPI_BUTTON_TYPE_POWERF:
- status = acpi_install_fixed_event_handler (
- ACPI_EVENT_POWER_BUTTON,
- acpi_button_notify_fixed,
- button);
+ status =
+ acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
+ acpi_button_notify_fixed,
+ button);
break;
case ACPI_BUTTON_TYPE_SLEEPF:
- status = acpi_install_fixed_event_handler (
- ACPI_EVENT_SLEEP_BUTTON,
- acpi_button_notify_fixed,
- button);
+ status =
+ acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
+ acpi_button_notify_fixed,
+ button);
break;
default:
- status = acpi_install_notify_handler (
- button->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_button_notify,
- button);
+ status = acpi_install_notify_handler(button->handle,
+ ACPI_DEVICE_NOTIFY,
+ acpi_button_notify,
+ button);
break;
}
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
+ "Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
if (device->wakeup.flags.valid) {
/* Button's GPE is run-wake GPE */
- acpi_set_gpe_type(device->wakeup.gpe_device,
- device->wakeup.gpe_number, ACPI_GPE_TYPE_WAKE_RUN);
- acpi_enable_gpe(device->wakeup.gpe_device,
- device->wakeup.gpe_number, ACPI_NOT_ISR);
+ acpi_set_gpe_type(device->wakeup.gpe_device,
+ device->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ acpi_enable_gpe(device->wakeup.gpe_device,
+ device->wakeup.gpe_number, ACPI_NOT_ISR);
device->wakeup.state.enabled = 1;
}
- printk(KERN_INFO PREFIX "%s [%s]\n",
- acpi_device_name(device), acpi_device_bid(device));
+ printk(KERN_INFO PREFIX "%s [%s]\n",
+ acpi_device_name(device), acpi_device_bid(device));
-end:
+ end:
if (result) {
acpi_button_remove_fs(device);
kfree(button);
@@ -433,12 +409,10 @@ end:
return_VALUE(result);
}
-
-static int
-acpi_button_remove (struct acpi_device *device, int type)
+static int acpi_button_remove(struct acpi_device *device, int type)
{
- acpi_status status = 0;
- struct acpi_button *button = NULL;
+ acpi_status status = 0;
+ struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_remove");
@@ -450,35 +424,36 @@ acpi_button_remove (struct acpi_device *device, int type)
/* Unregister for device notifications. */
switch (button->type) {
case ACPI_BUTTON_TYPE_POWERF:
- status = acpi_remove_fixed_event_handler(
- ACPI_EVENT_POWER_BUTTON, acpi_button_notify_fixed);
+ status =
+ acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
+ acpi_button_notify_fixed);
break;
case ACPI_BUTTON_TYPE_SLEEPF:
- status = acpi_remove_fixed_event_handler(
- ACPI_EVENT_SLEEP_BUTTON, acpi_button_notify_fixed);
+ status =
+ acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
+ acpi_button_notify_fixed);
break;
default:
status = acpi_remove_notify_handler(button->handle,
- ACPI_DEVICE_NOTIFY, acpi_button_notify);
+ ACPI_DEVICE_NOTIFY,
+ acpi_button_notify);
break;
}
if (ACPI_FAILURE(status))
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error removing notify handler\n"));
+ "Error removing notify handler\n"));
- acpi_button_remove_fs(device);
+ acpi_button_remove_fs(device);
kfree(button);
return_VALUE(0);
}
-
-static int __init
-acpi_button_init (void)
+static int __init acpi_button_init(void)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_button_init");
@@ -495,15 +470,13 @@ acpi_button_init (void)
return_VALUE(0);
}
-
-static void __exit
-acpi_button_exit (void)
+static void __exit acpi_button_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_button_exit");
acpi_bus_unregister_driver(&acpi_button_driver);
- if (acpi_power_dir)
+ if (acpi_power_dir)
remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, acpi_button_dir);
if (acpi_sleep_dir)
remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, acpi_button_dir);
@@ -514,6 +487,5 @@ acpi_button_exit (void)
return_VOID;
}
-
module_init(acpi_button_init);
module_exit(acpi_button_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 13:29:38 +0000