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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBSUSPEND_AUTOSUSPEND_H_
#define _LIBSUSPEND_AUTOSUSPEND_H_
#include <sys/cdefs.h>
#include <stdbool.h>
__BEGIN_DECLS
/*
* autosuspend_enable
*
* Turn on autosuspend in the kernel, allowing it to enter suspend if no
* wakelocks/wakeup_sources are held.
*
*
*
* Returns 0 on success, -1 if autosuspend was not enabled.
*/
int autosuspend_enable(void);
/*
* autosuspend_disable
*
* Turn off autosuspend in the kernel, preventing suspend and synchronizing
* with any in-progress resume.
*
* Returns 0 on success, -1 if autosuspend was not disabled.
*/
int autosuspend_disable(void);
/*
* force_suspend
*
* Forces suspend to happen. timeout_ms is used to give system a chance to suspend gracefully.
* When timeout expires, suspend will be forced via mem --> /sys/power/state. timeout_ms of 0
* will force suspend immediately.
*
* Returns 0 if system suspended, -1 if suspend did not occur.
*/
int autosuspend_force_suspend(int timeout_ms);
/*
* set_wakeup_callback
*
* Set a function to be called each time the device returns from suspend.
* success is true if the suspend was sucessful and false if the suspend
* aborted due to some reason.
*/
void autosuspend_set_wakeup_callback(void (*func)(bool success));
__END_DECLS
#endif
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