LCOV - code coverage report
Current view: top level - include/linux - wakelock.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 5 40.0 %
Date: 2014-02-18 Functions: 0 0 -
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* include/linux/wakelock.h
       2                 :            :  *
       3                 :            :  * Copyright (C) 2007-2012 Google, Inc.
       4                 :            :  *
       5                 :            :  * This software is licensed under the terms of the GNU General Public
       6                 :            :  * License version 2, as published by the Free Software Foundation, and
       7                 :            :  * may be copied, distributed, and modified under those terms.
       8                 :            :  *
       9                 :            :  * This program is distributed in the hope that it will be useful,
      10                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12                 :            :  * GNU General Public License for more details.
      13                 :            :  *
      14                 :            :  */
      15                 :            : 
      16                 :            : #ifndef _LINUX_WAKELOCK_H
      17                 :            : #define _LINUX_WAKELOCK_H
      18                 :            : 
      19                 :            : #include <linux/ktime.h>
      20                 :            : #include <linux/device.h>
      21                 :            : 
      22                 :            : /* A wake_lock prevents the system from entering suspend or other low power
      23                 :            :  * states when active. If the type is set to WAKE_LOCK_SUSPEND, the wake_lock
      24                 :            :  * prevents a full system suspend.
      25                 :            :  */
      26                 :            : 
      27                 :            : enum {
      28                 :            :         WAKE_LOCK_SUSPEND, /* Prevent suspend */
      29                 :            :         WAKE_LOCK_TYPE_COUNT
      30                 :            : };
      31                 :            : 
      32                 :            : struct wake_lock {
      33                 :            :         struct wakeup_source ws;
      34                 :            : };
      35                 :            : 
      36                 :            : static inline void wake_lock_init(struct wake_lock *lock, int type,
      37                 :            :                                   const char *name)
      38                 :            : {
      39                 :          0 :         wakeup_source_init(&lock->ws, name);
      40                 :            : }
      41                 :            : 
      42                 :            : static inline void wake_lock_destroy(struct wake_lock *lock)
      43                 :            : {
      44                 :          0 :         wakeup_source_trash(&lock->ws);
      45                 :            : }
      46                 :            : 
      47                 :            : static inline void wake_lock(struct wake_lock *lock)
      48                 :            : {
      49                 :      87231 :         __pm_stay_awake(&lock->ws);
      50                 :            : }
      51                 :            : 
      52                 :            : static inline void wake_lock_timeout(struct wake_lock *lock, long timeout)
      53                 :            : {
      54                 :          0 :         __pm_wakeup_event(&lock->ws, jiffies_to_msecs(timeout));
      55                 :            : }
      56                 :            : 
      57                 :            : static inline void wake_unlock(struct wake_lock *lock)
      58                 :            : {
      59                 :      87231 :         __pm_relax(&lock->ws);
      60                 :            : }
      61                 :            : 
      62                 :            : static inline int wake_lock_active(struct wake_lock *lock)
      63                 :            : {
      64                 :            :         return lock->ws.active;
      65                 :            : }
      66                 :            : 
      67                 :            : #endif

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