Adds additional host info exchanges in Context Hub HAL (065a9a5a) · Commits · e / os / android_hardware_interfaces

contexthub/aidl/aidl_api/android.hardware.contexthub/current/android/hardware/contexthub/HostEndpointInfo.aidl

0 → 100644

+46 −0

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		/*
		* Copyright (C) 2021 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.contexthub;
		@VintfStability
		parcelable HostEndpointInfo {
		char hostEndpointId;
		android.hardware.contexthub.HostEndpointInfo.Type type;
		@nullable String[] packageName;
		@nullable String[] attributionTag;
		@Backing(type="int") @VintfStability
		enum Type {
		TYPE_FRAMEWORK = 1,
		TYPE_APP = 2,
		}
		}

contexthub/aidl/aidl_api/android.hardware.contexthub/current/android/hardware/contexthub/IContextHub.aidl

+2 −0

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		@@ -43,4 +43,6 @@ interface IContextHub {
		boolean queryNanoapps(in int contextHubId);
		boolean registerCallback(in int contextHubId, in android.hardware.contexthub.IContextHubCallback cb);
		boolean sendMessageToHub(in int contextHubId, in android.hardware.contexthub.ContextHubMessage message);
		void onHostEndpointConnected(in android.hardware.contexthub.HostEndpointInfo hostEndpointInfo);
		void onHostEndpointDisconnected(char hostEndpointId);
		}

contexthub/aidl/android/hardware/contexthub/HostEndpointInfo.aidl

0 → 100644

+48 −0

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		/*
		* Copyright (C) 2021 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.contexthub;

		/**
		* Stores metadata regarding a host endpoint that may communicate with the Context Hub.
		*/
		@VintfStability
		parcelable HostEndpointInfo {
		/** The ID of the host endpoint asscociated with this host. */
		char hostEndpointId;

		/** The type of endpoint. */
		Type type;

		/** The (optional) package name of the host. */
		@nullable String[] packageName;

		/** The (optional) attribution tag associated with this host. */
		@nullable String[] attributionTag;

		@VintfStability
		@Backing(type="int")
		enum Type {
		/**
		This endpoint is from the Android framework, where packageName and attributionTag may be
		empty.
		*/
		TYPE_FRAMEWORK = 1,

		/** This endpoint is an Android app. */
		TYPE_APP = 2,
		}
		}

contexthub/aidl/android/hardware/contexthub/IContextHub.aidl

+26 −0

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		@@ -18,6 +18,7 @@ package android.hardware.contexthub;

		import android.hardware.contexthub.ContextHubInfo;
		import android.hardware.contexthub.ContextHubMessage;
		import android.hardware.contexthub.HostEndpointInfo;
		import android.hardware.contexthub.IContextHubCallback;
		import android.hardware.contexthub.NanoappBinary;
		import android.hardware.contexthub.Setting;
		@@ -151,4 +152,29 @@ interface IContextHub {
		* @return true on success
		*/
		boolean sendMessageToHub(in int contextHubId, in ContextHubMessage message);

		/**
		* Invoked when a host endpoint has connected with the ContextHubService.
		*
		* The host associated with this invocation may initiate a communication channel with
		* the Context Hub using sendMessageToHub.
		*
		* @param hostEndpointInfo Metadata associated with this host endpoint.
		*/
		void onHostEndpointConnected(in HostEndpointInfo hostEndpointInfo);

		/**
		* Invoked when a host endpoint has disconnected from the framework. This could be as a result
		* of an explicit connection closure, or unexpected restarts.
		*
		* Note that hostEndpointId is the same as the value in HostEndpointInfo. When this function is
		* called, the HAL is expected to clean up any resources attached to the messaging channel
		* associated with this host endpoint ID.
		*
		* @param hostEndPointId The ID of the host that has disconnected.
		*
		* @return Status::ok on success
		* EX_ILLEGAL_ARGUMENT if hostEndpointId is not associated with a connected host.
		*/
		void onHostEndpointDisconnected(char hostEndpointId);
		}

contexthub/aidl/default/ContextHub.cpp

+15 −0

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		@@ -111,6 +111,21 @@ namespace contexthub {
		return ndk::ScopedAStatus::ok();
		}

		::ndk::ScopedAStatus ContextHub::onHostEndpointConnected(const HostEndpointInfo& in_info) {
		mConnectedHostEndpoints.insert(in_info.hostEndpointId);

		return ndk::ScopedAStatus::ok();
		}

		::ndk::ScopedAStatus ContextHub::onHostEndpointDisconnected(char16_t in_hostEndpointId) {
		if (mConnectedHostEndpoints.count(in_hostEndpointId) > 0) {
		mConnectedHostEndpoints.erase(in_hostEndpointId);
		return ndk::ScopedAStatus::ok();
		} else {
		return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_ILLEGAL_ARGUMENT));
		}
		}

		} // namespace contexthub
		} // namespace hardware
		} // namespace android