1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.hardware.power@1.1; 17 18import android.hardware.power@1.0; 19 20/** 21 * Interface to collect subsystem level sleep information 22 */ 23interface IPower extends android.hardware.power@1.0::IPower { 24 25 /** 26 * Subsystem-level sleep state stats: 27 * Report cumulative info on the statistics on subsystem-level sleep states 28 * since boot. 29 * 30 * @return subsystems supported on this device and their sleep states 31 * @return retval SUCCESS on success or FILESYSTEM_ERROR on filesystem 32 * nodes access error. 33 */ 34 getSubsystemLowPowerStats() 35 generates (vec<PowerStateSubsystem> subsystems, Status retval); 36 37 /** 38 * powerHintAsync() is called to pass hints on power requirements which 39 * may result in adjustment of power/performance parameters of the 40 * cpufreq governor and other controls. 41 * 42 * A particular platform may choose to ignore any hint. 43 * 44 * @param hint PowerHint which is passed 45 * @param data contains additional information about the hint 46 * and is described along with the comments for each of the hints. 47 */ 48 oneway powerHintAsync(PowerHint hint, int32_t data); 49 50}; 51