/*
 * Copyright (C) 2019 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.cas@1.2;

import @1.1::ICasListener;
import StatusEvent;

interface ICasListener extends @1.1::ICasListener {
    /**
     * Notify the listener that the status of CAS system has changed.
     *
     * @param event the event type of status change.
     * @param number value for status event.
     *               For PLUGIN_PHYSICAL_MODULE_CHANGED event:
     *               the positive number presents how many plugins are inserted;
     *               the negative number presents how many plugins are removed.
     *               Client must enumerate plugins after receive the event.
     *               For PLUGIN_SESSION_NUMBER_CHANGED event:
     *               the number presents how many sessions are supported
     *               in the plugin.
     */
    onStatusUpdate(StatusEvent event, int32_t number);
};