68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* include/linux/wakelock.h
|
|
*
|
|
* Copyright (C) 2007-2012 Google, Inc.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef _LINUX_WAKELOCK_H
|
|
#define _LINUX_WAKELOCK_H
|
|
|
|
#include <linux/ktime.h>
|
|
#include <linux/device.h>
|
|
|
|
/* A wake_lock prevents the system from entering suspend or other low power
|
|
* states when active. If the type is set to WAKE_LOCK_SUSPEND, the wake_lock
|
|
* prevents a full system suspend.
|
|
*/
|
|
|
|
enum {
|
|
WAKE_LOCK_SUSPEND, /* Prevent suspend */
|
|
WAKE_LOCK_TYPE_COUNT
|
|
};
|
|
|
|
struct wake_lock {
|
|
struct wakeup_source ws;
|
|
};
|
|
|
|
static inline void wake_lock_init(struct wake_lock *lock, int type,
|
|
const char *name)
|
|
{
|
|
wakeup_source_init(&lock->ws, name);
|
|
}
|
|
|
|
static inline void wake_lock_destroy(struct wake_lock *lock)
|
|
{
|
|
wakeup_source_trash(&lock->ws);
|
|
}
|
|
|
|
static inline void wake_lock(struct wake_lock *lock)
|
|
{
|
|
__pm_stay_awake(&lock->ws);
|
|
}
|
|
|
|
static inline void wake_lock_timeout(struct wake_lock *lock, long timeout)
|
|
{
|
|
__pm_wakeup_event(&lock->ws, jiffies_to_msecs(timeout));
|
|
}
|
|
|
|
static inline void wake_unlock(struct wake_lock *lock)
|
|
{
|
|
__pm_relax(&lock->ws);
|
|
}
|
|
|
|
static inline int wake_lock_active(struct wake_lock *lock)
|
|
{
|
|
return lock->ws.active;
|
|
}
|
|
|
|
#endif
|