[ACPI] restore /proc/acpi/button/ (ala 2.6.12)
Signed-off-by Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by Len Brown <len.brown@intel.com>
This commit is contained in:
parent
7b15f5e7bb
commit
b34a8030ee
|
@ -26,6 +26,9 @@
|
|||
#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>
|
||||
|
||||
|
@ -33,6 +36,9 @@
|
|||
#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"
|
||||
|
@ -64,6 +70,8 @@ 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,
|
||||
|
@ -82,6 +90,179 @@ 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 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)
|
||||
{
|
||||
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:
|
||||
if (!acpi_power_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);
|
||||
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);
|
||||
entry = acpi_lid_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);
|
||||
acpi_device_dir(device) = NULL;
|
||||
}
|
||||
|
||||
return_VALUE(0);
|
||||
}
|
||||
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Driver Interface
|
||||
-------------------------------------------------------------------------- */
|
||||
|
@ -121,7 +302,8 @@ acpi_button_notify_fixed (
|
|||
|
||||
ACPI_FUNCTION_TRACE("acpi_button_notify_fixed");
|
||||
|
||||
BUG_ON(!button);
|
||||
if (!button)
|
||||
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
||||
|
||||
acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
|
||||
|
||||
|
@ -197,6 +379,10 @@ acpi_button_add (
|
|||
goto end;
|
||||
}
|
||||
|
||||
result = acpi_button_add_fs(device);
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
switch (button->type) {
|
||||
case ACPI_BUTTON_TYPE_POWERF:
|
||||
status = acpi_install_fixed_event_handler (
|
||||
|
@ -240,6 +426,7 @@ acpi_button_add (
|
|||
|
||||
end:
|
||||
if (result) {
|
||||
acpi_button_remove_fs(device);
|
||||
kfree(button);
|
||||
}
|
||||
|
||||
|
@ -280,6 +467,8 @@ 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);
|
||||
|
@ -293,14 +482,20 @@ 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)
|
||||
{
|
||||
|
@ -308,8 +503,17 @@ acpi_button_exit (void)
|
|||
|
||||
acpi_bus_unregister_driver(&acpi_button_driver);
|
||||
|
||||
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);
|
||||
if (acpi_lid_dir)
|
||||
remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir);
|
||||
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
|
||||
|
||||
return_VOID;
|
||||
}
|
||||
|
||||
|
||||
module_init(acpi_button_init);
|
||||
module_exit(acpi_button_exit);
|
||||
|
|
Loading…
Reference in a new issue