mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 09:08:05 -04:00
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*****************************************************************************
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*
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* Copyright (c) 2012 - 2016 Samsung Electronics Co., Ltd and its Licensors.
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* All rights reserved.
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*
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****************************************************************************/
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#include <linux/jiffies.h>
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#include <linux/module.h>
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#include "dev.h"
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#include "debug.h"
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#include "wakelock.h"
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#include "utils.h"
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void slsi_wakelock(struct slsi_wake_lock *lock)
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{
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#ifdef CONFIG_WAKELOCK
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unsigned long flags;
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if (lock == NULL) {
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SLSI_ERR_NODEV("Failed to take wakelock, lock is NULL");
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return;
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}
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spin_lock_irqsave(&lock->wl_spinlock, flags);
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if (!lock->counter)
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wake_lock(&lock->wl);
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lock->counter++;
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spin_unlock_irqrestore(&lock->wl_spinlock, flags);
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#else
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SLSI_UNUSED_PARAMETER(lock);
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#endif
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}
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void slsi_wakeunlock(struct slsi_wake_lock *lock)
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{
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#ifdef CONFIG_WAKELOCK
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unsigned long flags;
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if (lock == NULL) {
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SLSI_ERR_NODEV("Failed to unlock the wakelock, lock is NULL");
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return;
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}
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spin_lock_irqsave(&lock->wl_spinlock, flags);
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if (lock->counter) {
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lock->counter--;
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if (!lock->counter)
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wake_unlock(&lock->wl);
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} else {
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SLSI_ERR_NODEV("Wakelock has already released!");
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}
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spin_unlock_irqrestore(&lock->wl_spinlock, flags);
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#else
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SLSI_UNUSED_PARAMETER(lock);
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#endif
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}
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void slsi_wakelock_timeout(struct slsi_wake_lock *lock, int timeout)
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{
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#ifdef CONFIG_WAKELOCK
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if (lock == NULL) {
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SLSI_ERR_NODEV("Failed to take wakelock timeout, lock is NULL");
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return;
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}
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lock->counter = 1;
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wake_lock_timeout(&lock->wl, msecs_to_jiffies(timeout));
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#else
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SLSI_UNUSED_PARAMETER(lock);
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SLSI_UNUSED_PARAMETER(timeout);
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#endif
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}
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int slsi_is_wakelock_active(struct slsi_wake_lock *lock)
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{
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#ifdef CONFIG_WAKELOCK
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if (lock == NULL) {
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SLSI_ERR_NODEV("Failed to check wakelock status, lock is NULL");
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return 0;
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}
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if (wake_lock_active(&lock->wl))
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return 1;
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#else
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SLSI_UNUSED_PARAMETER(lock);
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#endif
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return 0;
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}
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void slsi_wakelock_exit(struct slsi_wake_lock *lock)
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{
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#ifdef CONFIG_WAKELOCK
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if (lock == NULL) {
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SLSI_ERR_NODEV("Failed to destroy the wakelock, lock is NULL");
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return;
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}
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wake_lock_destroy(&lock->wl);
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#else
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SLSI_UNUSED_PARAMETER(lock);
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#endif
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}
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void slsi_wakelock_init(struct slsi_wake_lock *lock, char *name)
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{
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#ifdef CONFIG_WAKELOCK
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if (lock == NULL) {
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SLSI_ERR_NODEV("Failed to init the wakelock, lock is NULL");
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return;
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}
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lock->counter = 0;
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wake_lock_init(&lock->wl, WAKE_LOCK_SUSPEND, name);
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spin_lock_init(&lock->wl_spinlock);
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#else
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SLSI_UNUSED_PARAMETER(lock);
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SLSI_UNUSED_PARAMETER(name);
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#endif
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}
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