| Uday Kishore Pasupuleti | 61e21a4 | 2016-01-06 19:12:41 -0800 | [diff] [blame] | 1 | /* AudioDaemon.h |
| 2 | |
| 3 | Copyright (c) 2012-2014, The Linux Foundation. All rights reserved. |
| 4 | |
| 5 | Redistribution and use in source and binary forms, with or without |
| 6 | modification, are permitted provided that the following conditions are |
| 7 | met: |
| 8 | * Redistributions of source code must retain the above copyright |
| 9 | notice, this list of conditions and the following disclaimer. |
| 10 | * Redistributions in binary form must reproduce the above |
| 11 | copyright notice, this list of conditions and the following |
| 12 | disclaimer in the documentation and/or other materials provided |
| 13 | with the distribution. |
| 14 | * Neither the name of The Linux Foundation nor the names of its |
| 15 | contributors may be used to endorse or promote products derived |
| 16 | from this software without specific prior written permission. |
| 17 | |
| 18 | THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 19 | WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 20 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 21 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 22 | BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 25 | BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 26 | WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 27 | OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 28 | IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/ |
| 29 | |
| 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <unistd.h> |
| 33 | #include <string.h> |
| 34 | #include <fcntl.h> |
| 35 | #include <vector> |
| 36 | |
| 37 | #include <utils/threads.h> |
| 38 | #include <utils/String8.h> |
| 39 | |
| 40 | |
| 41 | namespace android { |
| 42 | |
| 43 | enum notify_status { |
| 44 | snd_card_online, |
| 45 | snd_card_offline, |
| 46 | cpe_online, |
| 47 | cpe_offline |
| 48 | }; |
| 49 | |
| 50 | enum notify_status_type { |
| 51 | SND_CARD_STATE, |
| 52 | CPE_STATE |
| 53 | }; |
| 54 | |
| 55 | enum audio_event_status {audio_event_on, audio_event_off}; |
| 56 | |
| 57 | #define AUDIO_PARAMETER_KEY_EXT_AUDIO_DEVICE "ext_audio_device" |
| 58 | |
| 59 | class AudioDaemon:public Thread, public IBinder :: DeathRecipient |
| 60 | { |
| 61 | /*Overrides*/ |
| 62 | virtual bool threadLoop(); |
| 63 | virtual status_t readyToRun(); |
| 64 | virtual void onFirstRef(); |
| 65 | virtual void binderDied(const wp < IBinder > &who); |
| 66 | |
| 67 | bool processUeventMessage(); |
| 68 | void notifyAudioSystem(int snd_card, |
| 69 | notify_status status, |
| 70 | notify_status_type type); |
| 71 | void notifyAudioSystemEventStatus(const char* event, audio_event_status status); |
| 72 | int mUeventSock; |
| 73 | bool getStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair); |
| 74 | void putStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair); |
| 75 | bool getDeviceEventFDs(); |
| 76 | void putDeviceEventFDs(); |
| 77 | void checkEventState(int fd, int index); |
| 78 | |
| 79 | public: |
| 80 | AudioDaemon(); |
| 81 | virtual ~AudioDaemon(); |
| 82 | |
| 83 | private: |
| 84 | std::vector<std::pair<int,int> > mSndCardFd; |
| 85 | |
| 86 | //file descriptors for audio device events and their statuses |
| 87 | std::vector<std::pair<String8, int> > mAudioEvents; |
| 88 | std::vector<std::pair<String8, int> > mAudioEventsStatus; |
| 89 | |
| 90 | }; |
| 91 | |
| 92 | } |