Power: PowerHAL AIDL interface (61c2a337) · Commits · e / os / android_hardware_interfaces

compatibility_matrices/compatibility_matrix.current.xml

+1 −2

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		@@ -331,9 +331,8 @@
		<instance>default</instance>
		</interface>
		</hal>
		<hal format="hidl" optional="true">
		<hal format="aidl" optional="true">
		<name>android.hardware.power</name>
		<version>1.0-3</version>
		<interface>
		<name>IPower</name>
		<instance>default</instance>

power/aidl/Android.bp

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		// Copyright (C) 2020 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.

		aidl_interface {
		name: "android.hardware.power",
		vendor_available: true,
		srcs: [
		"android/hardware/power/*.aidl",
		],
		stability: "vintf",
		backend: {
		java: {
		platform_apis: true,
		},
		ndk: {
		vndk: {
		enabled: true,
		},
		},
		},
		}

power/aidl/android/hardware/power/Boost.aidl

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		/*
		* Copyright (C) 2020 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;

		@VintfStability
		@Backing(type="int")
		enum Boost {
		/**
		* This boost is set when user interacting with the device, for example,
		* touchscreen events are incoming. CPU and GPU load may be expected soon,
		* and it may be appropriate to raise speeds of CPU, memory bus etc.
		* Note that this is different from INTERACTIVE mode, which only indicates
		* that such interaction may occur, not that it is actively occurring.
		*/
		INTERACTION,

		/**
		* Below hints are currently not sent in Android framework but OEM might choose to
		* implement for power/perf optimizations.
		*/

		/**
		* This boost indicates that the device is interacting with ML accelerator.
		*/
		ML_ACC,

		/**
		* This boost indicates that the device is setting up audio stream.
		*/
		AUDIO_LAUNCH,

		/**
		* This boost indicates that camera is being launched.
		*/
		CAMERA_LAUNCH,

		/**
		* This boost indicates that camera shot is being taken.
		*/
		CAMERA_SHOT,
		}

power/aidl/android/hardware/power/IPower.aidl

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		/*
		* Copyright (C) 2020 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;

		import android.hardware.power.Boost;
		import android.hardware.power.Mode;

		@VintfStability
		interface IPower {
		/**
		* setMode() is called to enable/disable specific hint mode, which
		* may result in adjustment of power/performance parameters of the
		* cpufreq governor and other controls on device side.
		*
		* A particular platform may choose to ignore any mode hint.
		*
		* @param type Mode which is to be enable/disable.
		* @param enabled true to enable, false to disable the mode.
		*/
		oneway void setMode(in Mode type, in boolean enabled);

		/**
		* isModeSupported() is called to query if the given mode hint is
		* supported by vendor.
		*
		* @return true if the hint passed is supported on this platform.
		* If false, setting the mode will have no effect.
		* @param type Mode to be queried
		*/
		boolean isModeSupported(in Mode type);

		/**
		* setBoost() indicates the device may need to boost some resources, as the
		* the load is likely to increase before the kernel governors can react.
		* Depending on the boost, it may be appropriate to raise the frequencies of
		* CPU, GPU, memory subsystem, or stop CPU from going into deep sleep state.
		* A particular platform may choose to ignore this hint.
		*
		* @param type Boost type which is to be set with a timeout.
		* @param durationMs The expected duration of the user's interaction, if
		* known, or 0 if the expected duration is unknown.
		* a negative value indicates canceling previous boost.
		* A given platform can choose to boost some time based on durationMs,
		* and may also pick an appropriate timeout for 0 case.
		*/
		oneway void setBoost(in Boost type, in int durationMs);

		/**
		* isBoostSupported() is called to query if the given boost hint is
		* supported by vendor. When returns false, set the boost will have
		* no effect on the platform.
		*
		* @return true if the hint passed is supported on this platform.
		* If false, setting the boost will have no effect.
		* @param type Boost to be queried
		*/
		boolean isBoostSupported(in Boost type);
		}

power/aidl/android/hardware/power/Mode.aidl

0 → 100644

+109 −0

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		/*
		* Copyright (C) 2020 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;

		@VintfStability
		@Backing(type="int")
		enum Mode {
		/**
		* This mode indicates that the device is to allow wake up when the
		* screen is tapped twice.
		*/
		DOUBLE_TAP_TO_WAKE,

		/**
		* This mode indidates Low power mode is activated or not. Low power
		* mode is intended to save battery at the cost of performance.
		*/
		LOW_POWER,

		/**
		* This mode indidates Sustained Performance mode is activated or not.
		* Sustained performance mode is intended to provide a consistent level of
		* performance for a prolonged amount of time.
		*/
		SUSTAINED_PERFORMANCE,

		/**
		* This mode indidates VR Mode is activated or not. VR mode is intended
		* to provide minimum guarantee for performance for the amount of time the
		* device can sustain it.
		*/
		VR,

		/**
		* This mode indicates that an application has been launched.
		*/
		LAUNCH,

		/**
		* This mode indicates that the device is about to enter a period of
		* expensive rendering.
		*/
		EXPENSIVE_RENDERING,

		/**
		* This mode indicates that the device is about entering/leaving
		* interactive state. (that is, the system is awake and ready for
		* interaction, often with UI devices such as display and touchscreen
		* enabled) or non-interactive state (the
		* system appears asleep, display usually turned off). The
		* non-interactive state may be entered after a period of
		* inactivity in order to conserve battery power during
		* such inactive periods.
		*
		* Typical actions are to turn on or off devices and adjust
		* cpufreq parameters. This function may also call the
		* appropriate interfaces to allow the kernel to suspend the
		* system to low-power sleep state when entering non-interactive
		* state, and to disallow low-power suspend when the system is in
		* interactive state. When low-power suspend state is allowed, the
		* kernel may suspend the system whenever no wakelocks are held.
		*/
		INTERACTIVE,


		/**
		* Below hints are currently not sent in Android framework but OEM might choose to
		* implement for power/perf optimizations.
		*/

		/**
		* This mode indicates that low latency audio is active.
		*/
		AUDIO_STREAMING_LOW_LATENCY,

		/**
		* This hint indicates that camera secure stream is being started.
		*/
		CAMERA_STREAMING_SECURE,

		/**
		* This hint indicates that camera low resolution stream is being started.
		*/
		CAMERA_STREAMING_LOW,

		/**
		* This hint indicates that camera mid resolution stream is being started.
		*/
		CAMERA_STREAMING_MID,

		/**
		* This hint indicates that camera high resolution stream is being started.
		*/
		CAMERA_STREAMING_HIGH,
		}