HDSP_DAGainPlus4dBu
case HDSP_DAGainPlus4dBu:
hdsp->control_register |= HDSP_DAGainPlus4dBu;
hdsp->control_register |= (HDSP_DAGainPlus4dBu | HDSP_ADGainPlus4dBu | HDSP_PhoneGain0dB);