Signed-off-by: Arve Hjønnevåg <arve@xxxxxxxxxxx>--- include/linux/wakelock.h | 91 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 91 insertions(+), 0 deletions(-) create mode 100755 include/linux/wakelock.h
diff --git a/include/linux/wakelock.h b/include/linux/wakelock.hnew file mode 100755index 0000000..a096d24--- /dev/null+++ b/include/linux/wakelock.h@@ -0,0 +1,91 @@+/* 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>++/* 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. If the type is WAKE_LOCK_IDLE, low power+ * states that cause large interrupt latencies or that disable a set of+ * interrupts will not entered from idle until the wake_locks are released.+ */++enum {+ WAKE_LOCK_SUSPEND, /* Prevent suspend */+ WAKE_LOCK_IDLE, /* Prevent low power idle */+ 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);++/* wake_lock_active returns a non-zero value if the wake_lock is currently+ * locked. If the wake_lock has a timeout, it does not check the timeout+ * but if the timeout had aready been checked it will return 0.+ */+int wake_lock_active(struct wake_lock *lock);++/* has_wake_lock returns 0 if no wake locks of the specified type are active,+ * and non-zero if one or more wake locks are held. Specifically it returns+ * -1 if one or more wake locks with no timeout are active or the+ * number of jiffies until all active wake locks time out.+ */+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+-- 1.6.1
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