1586         mWriteAckSequence(0),  in PlaybackThread()
2168     if ((mWriteAckSequence & 1) && (sequence == mWriteAckSequence)) {  in resetWriteBlocked()
2169         mWriteAckSequence &= ~1;  in resetWriteBlocked()
2572             ALOGW_IF(mWriteAckSequence & 1, "threadLoop_write(): out of sequence write request");  in threadLoop_write()
2573             mWriteAckSequence += 2;  in threadLoop_write()
2574             mWriteAckSequence |= 1;  in threadLoop_write()
2576             mCallbackThread->setWriteBlocked(mWriteAckSequence);  in threadLoop_write()
2585             mWriteAckSequence &= ~1;  in threadLoop_write()
2587             mCallbackThread->setWriteBlocked(mWriteAckSequence);  in threadLoop_write()
3753         mWriteAckSequence = (mWriteAckSequence + 2) & ~1;  in threadLoop_standby()
3756         mCallbackThread->setWriteBlocked(mWriteAckSequence);  in threadLoop_standby()
5083         mWriteAckSequence(0),  in AsyncCallbackThread()
5105             while (!((mWriteAckSequence & 1) ||  in threadLoop()
5115                   mWriteAckSequence, mDrainSequence);  in threadLoop()
5116             writeAckSequence = mWriteAckSequence;  in threadLoop()
5117             mWriteAckSequence &= ~1;  in threadLoop()
5148     mWriteAckSequence = sequence << 1;  in setWriteBlocked()
5155     if (mWriteAckSequence & 2) {  in resetWriteBlocked()
5156         mWriteAckSequence |= 1;  in resetWriteBlocked()
5428           mWriteAckSequence, mDrainSequence);  in waitingAsyncCallback_l()
5429     if (mUseAsyncWrite && ((mWriteAckSequence & 1) || (mDrainSequence & 1))) {  in waitingAsyncCallback_l()
5454         mWriteAckSequence = (mWriteAckSequence + 2) & ~1;  in flushHw_l()
5457         mCallbackThread->setWriteBlocked(mWriteAckSequence);  in flushHw_l()