diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/earlysuspend.h | 56 | ||||
| -rw-r--r-- | include/linux/wakelock.h | 91 |
2 files changed, 147 insertions, 0 deletions
diff --git a/include/linux/earlysuspend.h b/include/linux/earlysuspend.h new file mode 100644 index 00000000000..36a42c046d8 --- /dev/null +++ b/include/linux/earlysuspend.h @@ -0,0 +1,56 @@ +/* include/linux/earlysuspend.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_EARLYSUSPEND_H +#define _LINUX_EARLYSUSPEND_H + +#ifdef CONFIG_ANDROID_HAS_EARLYSUSPEND +#include <linux/list.h> +#endif + +/* The early_suspend structure defines suspend and resume hooks to be called + * when the user visible sleep state of the system changes, and a level to + * control the order. They can be used to turn off the screen and input + * devices that are not used for wakeup. + * Suspend handlers are called in low to high level order, resume handlers are + * called in the opposite order. If, when calling register_early_suspend, + * the suspend handlers have already been called without a matching call to the + * resume handlers, the suspend handler will be called directly from + * register_early_suspend. This direct call can violate the normal level order. + */ +enum { + EARLY_SUSPEND_LEVEL_BLANK_SCREEN = 50, + EARLY_SUSPEND_LEVEL_STOP_DRAWING = 100, + EARLY_SUSPEND_LEVEL_DISABLE_FB = 150, +}; +struct early_suspend { +#ifdef CONFIG_ANDROID_HAS_EARLYSUSPEND + struct list_head link; + int level; + void (*suspend)(struct early_suspend *h); + void (*resume)(struct early_suspend *h); +#endif +}; + +#ifdef CONFIG_ANDROID_HAS_EARLYSUSPEND +void register_early_suspend(struct early_suspend *handler); +void unregister_early_suspend(struct early_suspend *handler); +#else +#define register_early_suspend(handler) do { } while (0) +#define unregister_early_suspend(handler) do { } while (0) +#endif + +#endif + diff --git a/include/linux/wakelock.h b/include/linux/wakelock.h new file mode 100644 index 00000000000..9ec19937b94 --- /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_ANDROID_HAS_WAKELOCK + struct list_head link; + int flags; + const char *name; + unsigned long expires; +#ifdef CONFIG_ANDROID_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_ANDROID_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 + |