broadcastradio/1.2/ITunerCallback.hal


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/*
 * Copyright (C) 2017 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.broadcastradio@1.2;

import @1.1::ITunerCallback;

interface ITunerCallback extends @1.1::ITunerCallback {
    /**
     * Generic callback for passing updates to vendor-specific parameter values.
     * The framework does not interpret the parameters, they are passed
     * in an opaque manner between a vendor application and HAL.
     *
     * It's up to the HAL implementation if and how to implement this callback,
     * as long as it obeys the prefix rule. In particular, only selected keys
     * may be notified this way. However, setParameters must not trigger
     * this callback, while an internal event can change parameters
     * asynchronously.
     *
     * @param parameters Vendor-specific key-value pairs.
     */
    oneway parametersUpdated(vec<VendorKeyValue> parameters);
};