Fix issue 4604090: notification sound interrupted.
The problem is that the audio HAL fails to acquire the wake lock when playing the notification.
This is because of a change that removed the mediaserver process form the system group for honeycomb.
The fix consists in requesting the wake lock from PowerManagerService when AudioFlinger mixer
wakes up.
A consequence of this change is that audio HALs or pcm drivers do not have to hold wake locks
anymore as in the past.
Change-Id: I4fb3cc84816c9c408ab7fec75886baf801e1ecb5
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index e2cf946..edd3e2a 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -43,6 +43,8 @@
#include "AudioBufferProvider.h"
+#include <powermanager/IPowerManager.h>
+
namespace android {
class audio_track_cblk_t;
@@ -287,6 +289,8 @@
status_t dumpBase(int fd, const Vector<String16>& args);
status_t dumpEffectChains(int fd, const Vector<String16>& args);
+ void clearPowerManager();
+
// base for record and playback
class TrackBase : public AudioBufferProvider, public RefBase {
@@ -386,6 +390,21 @@
int mParam;
};
+ class PMDeathRecipient : public IBinder::DeathRecipient {
+ public:
+ PMDeathRecipient(const wp<ThreadBase>& thread) : mThread(thread) {}
+ virtual ~PMDeathRecipient() {}
+
+ // IBinder::DeathRecipient
+ virtual void binderDied(const wp<IBinder>& who);
+
+ private:
+ PMDeathRecipient(const PMDeathRecipient&);
+ PMDeathRecipient& operator = (const PMDeathRecipient&);
+
+ wp<ThreadBase> mThread;
+ };
+
virtual status_t initCheck() const = 0;
int type() const { return mType; }
uint32_t sampleRate() const;
@@ -462,6 +481,11 @@
protected:
+ void acquireWakeLock();
+ void acquireWakeLock_l();
+ void releaseWakeLock();
+ void releaseWakeLock_l();
+
friend class Track;
friend class TrackBase;
friend class PlaybackThread;
@@ -490,6 +514,11 @@
Vector< sp<EffectChain> > mEffectChains;
uint32_t mDevice; // output device for PlaybackThread
// input + output devices for RecordThread
+ static const int kNameLength = 32;
+ char mName[kNameLength];
+ sp<IPowerManager> mPowerManager;
+ sp<IBinder> mWakeLockToken;
+ sp<PMDeathRecipient> mDeathRecipient;
};
// --- PlaybackThread ---