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/*
* Copyright (C) 2018 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.power.stats@1.0;
enum Status : uint32_t {
SUCCESS = 0,
NOT_SUPPORTED = 1,
INVALID_INPUT = 2,
FILESYSTEM_ERROR = 3,
INSUFFICIENT_RESOURCES = 4,
};
struct RailInfo {
/** Index corresponding to the rail */
uint32_t index;
/** Name of the rail (opaque to the framework) */
string railName;
/** Name of the subsystem to which this rail belongs (opaque to the framework) */
string subsysName;
/** Hardware sampling rate */
uint32_t samplingRate;
};
struct EnergyData {
/**
* Index corresponding to the rail. This index matches
* the index returned in RailInfo
*/
uint32_t index;
/** Time since device boot(CLOCK_BOOTTIME) in milli-seconds */
uint64_t timestamp;
/** Accumulated energy since device boot in microwatt-seconds (uWs) */
uint64_t energy;
};
enum PowerEntityType : uint32_t {
/**
* A subsystem is a self-contained compute unit. Some examples include
* application processor, DSP, GPU.
*/
SUBSYSTEM = 0,
/**
* A peripheral is an auxiliary device that connects to and works with a
* compute unit. Some examples include simple sensors, camera, display.
*/
PERIPHERAL = 1,
/**
* A power domain is a single subsystem or a collection of subsystems
* that is controlled by a single voltage rail.
*/
POWER_DOMAIN = 2,
};
/**
* PowerEntityInfo contains information, such as the ID, name, and type of a
* given PowerEntity.
*/
struct PowerEntityInfo {
/** Unique ID corresponding to the PowerEntity */
uint32_t powerEntityId;
/** Name of the PowerEntity (opaque to the framework) */
string powerEntityName;
/** Type of the PowerEntity */
PowerEntityType type;
};
struct PowerEntityStateInfo {
/**
* ID corresponding to the state. Unique for a given PowerEntityStateSpace
*/
uint32_t powerEntityStateId;
/** Name of the state (opaque to the framework) */
string powerEntityStateName;
};
/**
* PowerEntityStateSpace contains the state space information of a given
* PowerEntity. The state space, is the set of possible states that a given
* PowerEntity provides residency data for.
*/
struct PowerEntityStateSpace {
/** Unique ID of the corresponding PowerEntity */
uint32_t powerEntityId;
/** List of states that the PowerEntity may reside in */
vec<PowerEntityStateInfo> states;
};
/** Contains residency data for a single state */
struct PowerEntityStateResidencyData {
/** Unique ID of the corresponding PowerEntityStateInfo */
uint32_t powerEntityStateId;
/**
* Total time in milliseconds that the corresponding PowerEntity resided
* in this state since the PowerEntity was reset
*/
uint64_t totalTimeInStateMs;
/**
* Total number of times that the state was entered since the corresponding
* PowerEntity was reset
*/
uint64_t totalStateEntryCount;
/**
* Last time this state was entered. Time in milliseconds since the
* corresponding PowerEntity was reset
*/
uint64_t lastEntryTimestampMs;
};
struct PowerEntityStateResidencyResult {
/** Unique ID of the corresponding PowerEntity */
uint32_t powerEntityId;
/** Residency data for each state the PowerEntity's state space */
vec<PowerEntityStateResidencyData> stateResidencyData;
};
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