1/*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.hardware.cas@1.2;
18
19import @1.0::HidlCasSessionId;
20import @1.1::ICas;
21import ScramblingMode;
22import SessionIntent;
23import Status;
24
25/**
26 * ICas is the API to control the cas system and is accessible from both
27 * Java and native level. It is used to manage sessions, provision/refresh
28 * the cas system, and process the EMM/ECM messages. It also allows bi-directional,
29 * scheme-specific communications between the client and the cas system.
30 */
31interface ICas extends @1.1::ICas {
32    /**
33     * Open a session to descramble one or more streams by specifying intention
34     * and scrambling mode.
35     *
36     * @param intent the intention of the session to be opened.
37     * @param mode the scrambling mode the session will use.
38     * @return status the status of the call.
39     * @return sessionId the id of the newly opened session.
40     */
41    openSession_1_2(SessionIntent intent, ScramblingMode mode)
42        generates (Status status, HidlCasSessionId sessionId);
43};
44