/* include/linux/wakelock.h
 *
 * Copyright (C) 2007-2008 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/list.h>
#include <linux/ktime.h>


enum {
	WAKE_LOCK_SUSPEND, 
	WAKE_LOCK_TYPE_COUNT
};

struct wake_lock {
#ifdef CONFIG_HAS_WAKELOCK
	struct list_head    link;
	int                 flags;
	const char         *name;
	unsigned long       expires;
#ifdef CONFIG_WAKELOCK_STAT
	struct {
		int             count;
		int             expire_count;
		int             wakeup_count;
		ktime_t         total_time;
		ktime_t         prevent_suspend_time;
		ktime_t         max_time;
		ktime_t         last_time;
	} stat;
#endif
#endif
};

#ifdef CONFIG_HAS_WAKELOCK

void wake_lock_init(struct wake_lock *lock, int type, const char *name);
void wake_lock_destroy(struct wake_lock *lock);
void wake_lock(struct wake_lock *lock);
void wake_lock_timeout(struct wake_lock *lock, long timeout);
void wake_unlock(struct wake_lock *lock);

int wake_lock_active(struct wake_lock *lock);

long has_wake_lock(int type);

#else

static inline void wake_lock_init(struct wake_lock *lock, int type,
					const char *name) {}
static inline void wake_lock_destroy(struct wake_lock *lock) {}
static inline void wake_lock(struct wake_lock *lock) {}
static inline void wake_lock_timeout(struct wake_lock *lock, long timeout) {}
static inline void wake_unlock(struct wake_lock *lock) {}

static inline int wake_lock_active(struct wake_lock *lock) { return 0; }
static inline long has_wake_lock(int type) { return 0; }

#endif

#endif