audio flinger: do not call JAVA services until system is ready

Wait for system ready indication form AudioService before enabling
calls to scheduling service or power manager.

Bug: 11520969.
Change-Id: I221927394f4a08fd86c9d457e55dd0e07949f0cf

1 files changed, 13 insertions, 1 deletions

diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index d722fe9..a3f014b 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -80,7 +80,8 @@ enum {
     RELEASE_AUDIO_PATCH,
     LIST_AUDIO_PATCHES,
     SET_AUDIO_PORT_CONFIG,
-    GET_AUDIO_HW_SYNC
+    GET_AUDIO_HW_SYNC,
+    SYSTEM_READY
 };
 
 #define MAX_ITEMS_PER_LIST 1024
@@ -903,6 +904,12 @@ public:
         }
         return (audio_hw_sync_t)reply.readInt32();
     }
+    virtual status_t systemReady()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
+        return remote()->transact(SYSTEM_READY, data, &reply, IBinder::FLAG_ONEWAY);
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger");
@@ -1396,6 +1403,11 @@ status_t BnAudioFlinger::onTransact(
             reply->writeInt32(getAudioHwSyncForSession((audio_session_t)data.readInt32()));
             return NO_ERROR;
         } break;
+        case SYSTEM_READY: {
+            CHECK_INTERFACE(IAudioFlinger, data, reply);
+            systemReady();
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }