Paul McLean | c88e6ae | 2014-07-16 09:48:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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 | #ifndef ANDROID_HARDWARE_LIBHARDWARE_MODULES_USBAUDIO_ALSA_DEVICE_PROXY_H |
| 18 | #define ANDROID_HARDWARE_LIBHARDWARE_MODULES_USBAUDIO_ALSA_DEVICE_PROXY_H |
| 19 | |
| 20 | #include <tinyalsa/asoundlib.h> |
| 21 | |
| 22 | #include "alsa_device_profile.h" |
| 23 | |
| 24 | typedef struct { |
| 25 | alsa_device_profile* profile; |
| 26 | |
| 27 | struct pcm_config alsa_config; |
| 28 | |
| 29 | struct pcm * pcm; |
| 30 | } alsa_device_proxy; |
| 31 | |
| 32 | void proxy_prepare(alsa_device_proxy * proxy, alsa_device_profile * profile, |
| 33 | struct pcm_config * config); |
| 34 | |
| 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); |
| 38 | |
| 39 | unsigned int proxy_get_period_size(const alsa_device_proxy * proxy); |
| 40 | |
| 41 | unsigned proxy_get_latency(const alsa_device_proxy * proxy); |
| 42 | |
| 43 | int proxy_open(alsa_device_proxy * proxy); |
| 44 | void proxy_close(alsa_device_proxy * proxy); |
| 45 | |
| 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); |
| 48 | |
| 49 | #endif /* ANDROID_HARDWARE_LIBHARDWARE_MODULES_USBAUDIO_ALSA_DEVICE_PROXY_H */ |