2 * Copyright (C) 2014 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef ANDROID_HARDWARE_LIBHARDWARE_MODULES_USBAUDIO_ALSA_DEVICE_PROXY_H
18 #define ANDROID_HARDWARE_LIBHARDWARE_MODULES_USBAUDIO_ALSA_DEVICE_PROXY_H
20 #include <tinyalsa/asoundlib.h>
22 #include "alsa_device_profile.h"
25 alsa_device_profile* profile;
27 struct pcm_config alsa_config;
32 void proxy_prepare(alsa_device_proxy * proxy, alsa_device_profile * profile,
33 struct pcm_config * config);
35 unsigned proxy_get_sample_rate(const alsa_device_proxy * proxy);
36 enum pcm_format proxy_get_format(const alsa_device_proxy * proxy);
37 unsigned proxy_get_channel_count(const alsa_device_proxy * proxy);
39 unsigned int proxy_get_period_size(const alsa_device_proxy * proxy);
41 unsigned proxy_get_latency(const alsa_device_proxy * proxy);
43 int proxy_open(alsa_device_proxy * proxy);
44 void proxy_close(alsa_device_proxy * proxy);
46 int proxy_write(const alsa_device_proxy * proxy, const void *data, unsigned int count);
47 int proxy_read(const alsa_device_proxy * proxy, void *data, unsigned int count);
49 #endif /* ANDROID_HARDWARE_LIBHARDWARE_MODULES_USBAUDIO_ALSA_DEVICE_PROXY_H */