1/*
2 * Copyright (C) 2018 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 */
16package android.hardware.drm@1.2;
17
18import @1.1::IDrmFactory;
19import @1.1::IDrmPlugin;
20import @1.1::SecurityLevel;
21
22/**
23 * IDrmFactory is the main entry point for interacting with a vendor's
24 * drm HAL to create drm plugin instances. A drm plugin instance
25 * creates drm sessions which are used to obtain keys for a crypto
26 * session so it can decrypt protected video content.
27 *
28 * The 1.2 factory must always create 1.2 IDrmPlugin interfaces, which are
29 * returned via the 1.0 createPlugin method.
30 *
31 * To use 1.2 features the caller must cast the returned interface to a
32 * 1.2 HAL, using V1_2::IDrmPlugin::castFrom().
33 *
34 * The IDrmFactory hal is required because all top-level interfaces
35 * have to be updated in a minor uprev.
36 */
37
38interface IDrmFactory extends @1.1::IDrmFactory {
39    /**
40     * Determine if a specific security level is supported by the device.
41     * This method only differs from @1.0 isCryptoSchemeSupported
42     * by the addition of a security level.
43     *
44     * @param uuid identifies the crypto scheme in question
45     * @param mimeType identifies the mime type in question
46     * @param securityLevel specifies the security level required
47     * @return isSupported must be true only if the scheme is supported
48     */
49    isCryptoSchemeSupported_1_2(uint8_t[16] uuid, string mimeType,
50            @1.1::SecurityLevel securityLevel) generates(bool isSupported);
51};
52