audio: Add new Audio daemon process
- Add new audio daemon process.
- Pupose of this daemon is to monitor and report changes ADSP
processor state to audio framework/Audio flinger.
- Specific sysfs node file on device indicates ADSP processor
state as ONLINE or OFFLINE
Change-Id: Ibad54ea93cbb4fbc59ba599c76541c1f255d4c48
diff --git a/audiod/AudioDaemon.h b/audiod/AudioDaemon.h
new file mode 100644
index 0000000..15c0cf1
--- /dev/null
+++ b/audiod/AudioDaemon.h
@@ -0,0 +1,67 @@
+/* AudioDaemon.h
+
+Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ * Neither the name of The Linux Foundation nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <vector>
+
+#include <utils/threads.h>
+#include <utils/String8.h>
+
+
+namespace android {
+
+enum snd_card_status { snd_card_online, snd_card_offline};
+
+class AudioDaemon:public Thread, public IBinder :: DeathRecipient
+{
+ /*Overrides*/
+ virtual bool threadLoop();
+ virtual status_t readyToRun();
+ virtual void onFirstRef();
+ virtual void binderDied(const wp < IBinder > &who);
+
+ bool processUeventMessage();
+ void notifyAudioSystem(int snd_card, snd_card_status status);
+ int mUeventSock;
+ bool getStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
+ void putStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
+
+public:
+ AudioDaemon();
+ virtual ~AudioDaemon();
+
+private:
+ std::vector<std::pair<int,int> > mSndCardFd;
+};
+
+}