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1/*
2 * Copyright (C) 2022 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.audio@7.1;
18
19import android.hardware.audio.common@7.0;
20import @7.0::AudioInOutFlag;
21import @7.0::IDevice;
22import @7.0::Result;
23import IStreamOut;
24
25interface IDevice extends @7.0::IDevice {
26    /**
27     * This method creates and opens the audio hardware output stream.
28     * If the stream can not be opened with the proposed audio config,
29     * HAL must provide suggested values for the audio config.
30     *
31     * Note: INVALID_ARGUMENTS is returned both in the case when the
32     * HAL can not use the provided config and in the case when
33     * the value of any argument is invalid. In the latter case the
34     * HAL must provide a default initialized suggested config.
35     *
36     * @param ioHandle handle assigned by AudioFlinger.
37     * @param device device type and (if needed) address.
38     * @param config stream configuration.
39     * @param flags additional flags.
40     * @param sourceMetadata Description of the audio that will be played.
41                             May be used by implementations to configure hardware effects.
42     * @return retval operation completion status.
43     * @return outStream created output stream.
44     * @return suggestedConfig in the case of rejection of the proposed config,
45     *                         a config suggested by the HAL.
46     */
47    openOutputStream_7_1(
48            AudioIoHandle ioHandle,
49            DeviceAddress device,
50            AudioConfig config,
51            vec<AudioInOutFlag> flags,
52            SourceMetadata sourceMetadata) generates (
53                    Result retval,
54                    IStreamOut outStream,
55                    AudioConfig suggestedConfig);
56
57    /**
58     * Notifies the device module about the connection state of an input/output
59     * device attached to it. The devicePort identifies the device and may also
60     * provide extra information such as raw audio descriptors.
61     *
62     * @param devicePort audio device port.
63     * @param connected whether the device is connected.
64     * @return retval operation completion status.
65     */
66    setConnectedState_7_1(AudioPort devicePort, bool connected)
67            generates (Result retval);
68};
69