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/*
* Copyright (C) 2017 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.
*/
package android.hardware.sidekick;
/**
* Sidekick local system service interface.
*
* @hide Only for use within the system server, and maybe by Clockwork Home.
*/
public abstract class SidekickInternal {
/**
* Tell Sidekick to reset back to newly-powered-on state.
*
* @return true on success (Sidekick is reset), false if Sidekick is not
* available (failed or not present). Either way, upon return Sidekick is
* guaranteed not to be controlling the display.
*/
public abstract boolean reset();
/**
* Tell Sidekick it can start controlling the display.
*
* SidekickServer may choose not to actually control the display, if it's been told
* via other channels to leave the previous image on the display (same as SUSPEND in
* a non-Sidekick system).
*
* @param displayState - one of Display.STATE_DOZE_SUSPEND, Display.STATE_ON_SUSPEND
* @return true on success, false on failure (no sidekick available)
*/
public abstract boolean startDisplayControl(int displayState);
/**
* Tell Sidekick it must stop controlling the display.
*
* No return code because this must always succeed - after return, Sidekick
* is guaranteed to not be controlling the display.
*/
public abstract void endDisplayControl();
}
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