74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_AUDIO_HARDWARE_BASE_H
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#define ANDROID_AUDIO_HARDWARE_BASE_H
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#include "hardware_legacy/AudioHardwareInterface.h"
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namespace android {
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// ----------------------------------------------------------------------------
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/**
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* AudioHardwareBase is a convenient base class used for implementing the
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* AudioHardwareInterface interface.
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*/
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class AudioHardwareBase : public AudioHardwareInterface
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{
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public:
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AudioHardwareBase();
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virtual ~AudioHardwareBase() { }
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/**
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* Audio routing methods. Routes defined in include/hardware_legacy/AudioSystem.h.
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* Audio routes can be (ROUTE_EARPIECE | ROUTE_SPEAKER | ROUTE_BLUETOOTH
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* | ROUTE_HEADSET)
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*
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* setRouting sets the routes for a mode. This is called at startup. It is
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* also called when a new device is connected, such as a wired headset is
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* plugged in or a Bluetooth headset is paired.
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*/
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virtual status_t setRouting(int mode, uint32_t routes);
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virtual status_t getRouting(int mode, uint32_t* routes);
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/**
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* setMode is called when the audio mode changes. NORMAL mode is for
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* standard audio playback, RINGTONE when a ringtone is playing, and IN_CALL
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* when a call is in progress.
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*/
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virtual status_t setMode(int mode);
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virtual status_t getMode(int* mode);
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// Temporary interface, do not use
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// TODO: Replace with a more generic key:value get/set mechanism
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virtual status_t setParameter(const char* key, const char* value);
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virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount);
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/**This method dumps the state of the audio hardware */
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virtual status_t dumpState(int fd, const Vector<String16>& args);
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protected:
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int mMode;
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uint32_t mRoutes[AudioSystem::NUM_MODES];
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};
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}; // namespace android
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#endif // ANDROID_AUDIO_HARDWARE_BASE_H
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