diff options
author | Mark Brown <broonie@kernel.org> | 2016-03-18 09:50:49 +0000 |
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committer | Mark Brown <broonie@kernel.org> | 2016-03-18 09:50:49 +0000 |
commit | 0f221533bae04ea913dc8ebe18cb876a916ff690 (patch) | |
tree | 77e668f0080e2ca245bd6150f5046370e8fa9f4b /include/linux/wakelock.h | |
parent | 917a9133a6b3c6cc2b6b5649d28c617a4ccac3e6 (diff) | |
parent | 127f7fb4c452328fa24f4c29eb403a97c5f7ea8c (diff) |
Merge remote-tracking branch 'lsk/linux-linaro-lsk-v4.4-android' into linux-linaro-lsk-v4.4-androidlsk-v4.4-16.03-android
Diffstat (limited to 'include/linux/wakelock.h')
-rw-r--r-- | include/linux/wakelock.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/linux/wakelock.h b/include/linux/wakelock.h new file mode 100644 index 000000000000..f4a698a22880 --- /dev/null +++ b/include/linux/wakelock.h @@ -0,0 +1,67 @@ +/* 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 |