Add HAL method to return SupportInfo object for PowerHAL (48d71953) · Commits · e / os / android_hardware_interfaces

power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/IPower.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -43,4 +43,5 @@ interface IPower {
		android.hardware.power.IPowerHintSession createHintSessionWithConfig(in int tgid, in int uid, in int[] threadIds, in long durationNanos, in android.hardware.power.SessionTag tag, out android.hardware.power.SessionConfig config);
		android.hardware.power.ChannelConfig getSessionChannel(in int tgid, in int uid);
		oneway void closeSessionChannel(in int tgid, in int uid);
		android.hardware.power.SupportInfo getSupportInfo();
		}

power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SupportInfo.aidl

0 → 100644

+43 −0

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		/*
		* Copyright (C) 2024 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.
		*/
		///////////////////////////////////////////////////////////////////////////////
		// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE. //
		///////////////////////////////////////////////////////////////////////////////

		// This file is a snapshot of an AIDL file. Do not edit it manually. There are
		// two cases:
		// 1). this is a frozen version file - do not edit this in any case.
		// 2). this is a 'current' file. If you make a backwards compatible change to
		// the interface (from the latest frozen version), the build system will
		// prompt you to update this file with `m <name>-update-api`.
		//
		// You must not make a backward incompatible change to any AIDL file built
		// with the aidl_interface module type with versions property set. The module
		// type is used to build AIDL files in a way that they can be used across
		// independently updatable components of the system. If a device is shipped
		// with such a backward incompatible change, it has a high risk of breaking
		// later when a module using the interface is updated, e.g., Mainline modules.

		package android.hardware.power;
		@VintfStability
		parcelable SupportInfo {
		boolean usesSessions;
		long boosts;
		long modes;
		long sessionHints;
		long sessionModes;
		long sessionTags;
		}

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

+11 −0

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		@@ -22,6 +22,7 @@ import android.hardware.power.IPowerHintSession;
		import android.hardware.power.Mode;
		import android.hardware.power.SessionConfig;
		import android.hardware.power.SessionTag;
		import android.hardware.power.SupportInfo;

		@VintfStability
		interface IPower {
		@@ -144,4 +145,14 @@ interface IPower {
		* @param uid The UID to be associated with this channel.
		*/
		oneway void closeSessionChannel(in int tgid, in int uid);

		/**
		* Called to get detailed information on the support status of various PowerHAL
		* features, such as hint sessions and specific boosts.
		*
		* @return a SupportInfo giving detailed support information, or
		* EX_UNSUPPORTED_OPERATION if detailed support checking is itself
		* not supported.
		*/
		SupportInfo getSupportInfo();
		}

power/aidl/android/hardware/power/SupportInfo.aidl

0 → 100644

+73 −0

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		/*
		* Copyright (C) 2024 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;
		import android.hardware.power.SessionHint;
		import android.hardware.power.SessionMode;

		/**
		* Tells clients the status of various PowerHAL features in a single call.
		* SupportInfo consists of several bitsets, where each bit from the left
		* corresponds to the support status of that same value of that enum index.
		*
		* For "Boost", having the first bit set would mean "INTERACTION"
		* boost is supported, having the second bit set would mean
		* "DISPLAY_UPDATE_IMMINENT" is supported, and so on. The expectation
		* is that if a client should be able to index the bitset like
		* "(supportInfo.boosts >> Boost::AUDIO_LAUNCH) % 2" and it should return
		* the support value of Boost::AUDIO_LAUNCH. This pattern is the same for
		* all four support bitsets.
		*/
		@VintfStability
		parcelable SupportInfo {
		/**
		* Boolean representing whether hint sessions are supported on this device
		*/
		boolean usesSessions;

		/**
		* The set of "Boost" enum values that are supported by this device
		* Each bit should correspond to a value of the "Boost.aidl" enum
		*/
		long boosts;

		/**
		* The set of "Mode" enum values that are supported by this device
		* Each bit should correspond to a value of the "Mode.aidl" enum
		*/
		long modes;

		/**
		* The set of "SessionHint" enum values that are supported by this device
		* Each bit should correspond to a value of the "SessionHint.aidl" enum
		*/
		long sessionHints;

		/**
		* The set of "SessionMode" enum values that are supported by this device
		* Each bit should correspond to a value of the "SessionMode.aidl" enum
		*/
		long sessionModes;

		/**
		* The set of "SessionTag" enum values that are supported by this device
		* Each bit should correspond to a value of the "SessionTag.aidl" enum
		*/
		long sessionTags;
		}

power/aidl/default/Power.cpp

+25 −1

Original line number	Diff line number	Diff line
		@@ -41,6 +41,11 @@ const std::vector<Boost> BOOST_RANGE{ndk::enum_range<Boost>().begin(),
		ndk::enum_range<Boost>().end()};
		const std::vector<Mode> MODE_RANGE{ndk::enum_range<Mode>().begin(), ndk::enum_range<Mode>().end()};

		template <class T>
		constexpr size_t enum_size() {
		return static_cast<size_t>(*(ndk::enum_range<T>().end() - 1)) + 1;
		}

		ScopedAStatus Power::setMode(Mode type, bool enabled) {
		LOG(VERBOSE) << "Power setMode: " << static_cast<int32_t>(type) << " to: " << enabled;
		return ScopedAStatus::ok();
		@@ -105,11 +110,30 @@ ndk::ScopedAStatus Power::closeSessionChannel(int32_t, int32_t) {
		return ndk::ScopedAStatus::ok();
		}

		ScopedAStatus Power::getHintSessionPreferredRate(int64_t* outNanoseconds) {
		ndk::ScopedAStatus Power::getHintSessionPreferredRate(int64_t* outNanoseconds) {
		*outNanoseconds = std::chrono::nanoseconds(1ms).count();
		return ScopedAStatus::ok();
		}

		template <class E>
		int64_t bitsForEnum() {
		return static_cast<int64_t>(std::bitset<enum_size<E>()>().set().to_ullong());
		}

		ndk::ScopedAStatus Power::getSupportInfo(SupportInfo* _aidl_return) {
		static SupportInfo supportInfo = {
		.usesSessions = false,
		.modes = bitsForEnum<Mode>(),
		.boosts = bitsForEnum<Boost>(),
		.sessionHints = 0,
		.sessionModes = 0,
		.sessionTags = 0,
		};
		// Copy the support object into the binder
		*_aidl_return = supportInfo;
		return ndk::ScopedAStatus::ok();
		}

		} // namespace example
		} // namespace impl
		} // namespace power