93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/* AudioDaemon.h
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Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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* Neither the name of The Linux Foundation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <fcntl.h>
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#include <vector>
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#include <utils/threads.h>
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#include <utils/String8.h>
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namespace android {
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enum notify_status {
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snd_card_online,
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snd_card_offline,
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cpe_online,
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cpe_offline
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};
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enum notify_status_type {
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SND_CARD_STATE,
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CPE_STATE
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};
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enum audio_event_status {audio_event_on, audio_event_off};
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#define AUDIO_PARAMETER_KEY_EXT_AUDIO_DEVICE "ext_audio_device"
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class AudioDaemon:public Thread, public IBinder :: DeathRecipient
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{
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/*Overrides*/
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virtual bool threadLoop();
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virtual status_t readyToRun();
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virtual void onFirstRef();
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virtual void binderDied(const wp < IBinder > &who);
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bool processUeventMessage();
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void notifyAudioSystem(int snd_card,
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notify_status status,
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notify_status_type type);
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void notifyAudioSystemEventStatus(const char* event, audio_event_status status);
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int mUeventSock;
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bool getStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
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void putStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
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bool getDeviceEventFDs();
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void putDeviceEventFDs();
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void checkEventState(int fd, int index);
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public:
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AudioDaemon();
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virtual ~AudioDaemon();
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private:
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std::vector<std::pair<int,int> > mSndCardFd;
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//file descriptors for audio device events and their statuses
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std::vector<std::pair<String8, int> > mAudioEvents;
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std::vector<std::pair<String8, int> > mAudioEventsStatus;
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};
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}
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