1 /*
2  * Copyright (C) 2020 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 
17 #pragma once
18 #include <memory>
19 #include <tinyalsa/asoundlib.h>
20 
21 namespace android {
22 namespace hardware {
23 namespace audio {
24 namespace V6_0 {
25 namespace implementation {
26 namespace talsa {
27 
28 constexpr unsigned int kPcmDevice = 0;
29 constexpr unsigned int kPcmCard = 0;
30 
31 typedef struct pcm pcm_t;
32 struct PcmDeleter { void operator()(pcm_t *x) const; };
33 typedef std::unique_ptr<pcm_t, PcmDeleter> PcmPtr;
34 PcmPtr pcmOpen(unsigned int dev, unsigned int card, unsigned int nChannels, size_t sampleRateHz, size_t frameCount, bool isOut);
35 
36 typedef struct mixer mixer_t;
37 typedef struct mixer_ctl mixer_ctl_t;
38 struct MixerDeleter { void operator()(struct mixer *m) const; };
39 typedef std::unique_ptr<mixer_t, MixerDeleter> MixerPtr;
40 MixerPtr mixerOpen(unsigned int card);
41 void mixerSetValueAll(mixer_ctl_t *ctl, int value);
42 void mixerSetPercentAll(mixer_ctl_t *ctl, int percent);
43 
44 }  // namespace talsa
45 }  // namespace implementation
46 }  // namespace V6_0
47 }  // namespace audio
48 }  // namespace hardware
49 }  // namespace android
50