1cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project/* 2cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 4cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * you may not use this file except in compliance with the License. 6cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * You may obtain a copy of the License at 7cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 8cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 10cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * See the License for the specific language governing permissions and 14cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * limitations under the License. 15cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 16cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 17cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#ifndef ANDROID_AUDIO_HARDWARE_BASE_H 18cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#define ANDROID_AUDIO_HARDWARE_BASE_H 19cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 20e81531e91ecae92aff471dbff9cbeb0f95ff4a80Dima Zavin#include <hardware_legacy/AudioHardwareInterface.h> 21cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 224a0748be283a8c9efa02243c3e1716c49443a87cDima Zavin#include <system/audio.h> 23cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 24e81531e91ecae92aff471dbff9cbeb0f95ff4a80Dima Zavinnamespace android_audio_legacy { 25cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 26cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project// ---------------------------------------------------------------------------- 27cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 283e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi/** 293e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi * AudioHardwareBase is a convenient base class used for implementing the 30cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * AudioHardwareInterface interface. 31cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 32cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectclass AudioHardwareBase : public AudioHardwareInterface 33cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 34cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectpublic: 35cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project AudioHardwareBase(); 36cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project virtual ~AudioHardwareBase() { } 373e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi 38cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /** 39cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * setMode is called when the audio mode changes. NORMAL mode is for 403e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi * standard audio playback, RINGTONE when a ringtone is playing, IN_CALL 413e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi * when a telephony call is in progress, IN_COMMUNICATION when a VoIP call is in progress. 42cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 43cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project virtual status_t setMode(int mode); 44cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 45dbfad0ce83535cea0940e04660bdfab5b6c867a4Eric Laurent virtual status_t setParameters(const String8& keyValuePairs); 46dbfad0ce83535cea0940e04660bdfab5b6c867a4Eric Laurent virtual String8 getParameters(const String8& keys); 473e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi 48cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount); 49617c80a82e5620b2f16348e4bd3d7fc3b76e9021John Grossman virtual status_t getMasterVolume(float *volume); 503e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi 51cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /**This method dumps the state of the audio hardware */ 52cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project virtual status_t dumpState(int fd, const Vector<String16>& args); 53cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 54cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectprotected: 553e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi /** returns true if the given mode maps to a telephony or VoIP call is in progress */ 563e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi virtual bool isModeInCall(int mode) 573e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi { return ((mode == AudioSystem::MODE_IN_CALL) 583e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi || (mode == AudioSystem::MODE_IN_COMMUNICATION)); }; 593e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi /** returns true if a telephony or VoIP call is in progress */ 603e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi virtual bool isInCall() { return isModeInCall(mMode); }; 613e480fa067136253ae05faaba77f814f42cd56f0Jean-Michel Trivi int mMode; 62cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project}; 63cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 64cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project}; // namespace android 65cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 66cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#endif // ANDROID_AUDIO_HARDWARE_BASE_H 67