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