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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.contexthub@1.2;
import @1.0::ContextHub;
import @1.0::Result;
import @1.1::IContexthub;
import @1.1::SettingValue;
import IContexthubCallback;
interface IContexthub extends @1.1::IContexthub {
/**
* Enumerate all available context hubs on the system.
*
* @return hubs list of hubs on this system.
* @return supportedPermissions list of Android permissions all hubs
* support for nanoapps to enforce host
* endpoints are granted in order to
* communicate with them.
*/
getHubs_1_2() generates (vec<ContextHub> hubs, vec<string> supportedPermissions);
/**
* Register a callback for the HAL implementation to send asynchronous
* messages to the service from a context hub. There can be a maximum of
* one callback registered with the HAL. A call to this function when a
* callback has already been registered must override the previous
* registration.
*
* @param hubId identifier for the hub
* @param callback an implementation of the IContextHubCallbacks
*
* @return result OK on success
* BAD_VALUE if parameters are not valid
*
*/
registerCallback_1_2(uint32_t hubId, IContexthubCallback cb) generates (Result result);
/**
* Notification sent by the framework to indicate that the user
* has changed a setting.
*
* @param setting User setting that has been modified.
* @param newValue The update value of the user setting.
*/
onSettingChanged_1_2(Setting setting, @1.1::SettingValue newValue);
};