COMMAND CONST_PCNODE_DESCRIPTOR CONST_PCNODE_DESCRIPTOR_AUTO DATA DEFINE_PCAUTOMATION_TABLE_PROP DEFINE_PCAUTOMATION_TABLE_PROP DMusMPUInterruptServiceRoutine DMusMPUInterruptServiceRoutine DMusUARTTimerDPC DMusUARTTimerDPC eBridgeInputPin eBridgeOutputPin eFilterInputPinDM eFilterInputPinLeg eFilterOutputPin eInputNode eSynthNode InitMPU kMaxNumCaptureStreams kMaxNumDMusicRenderStreams kMaxNumLegacyRenderStreams kMPUInputBufferSize kMPUPollTimeout kOneMillisec MiniportCategories MiniportConnections MiniportFilterDescriptor MiniportNodes MiniportPins MPU401_CMD_RESET MPU401_CMD_UART MPU401_DRR MPU401_DSR MPU401_REG_COMMAND MPU401_REG_DATA MPU401_REG_STATUS NewMiniportDMusUART PinDataRangePointersBridge PinDataRangePointersStreamCombined PinDataRangePointersStreamDMusic PinDataRangePointersStreamLegacy PinDataRangesBridge PinDataRangesStreamDMusic PinDataRangesStreamLegacy PropertyHandler_Synth PSYNCWRITECONTEXT ResetHardware SnapTimeStamp STR_MODULENAME SynchronizedDMusMPUWrite SynchronizedDMusMPUWrite SynthProperties TryMPU UartFifoOkForRead UartFifoOkForWrite ValidatePropertyRequest WriteMPU wszDescIn wszDescOut

NTSTATUS WriteMPU ( IN PUCHAR  PortBase, IN BOOLEAN  IsCommand, IN UCHAR  Value  ) Definition at line 968 of file miniport_dmus.cpp. Referenced by InitMPU(), ResetHardware(), and SynchronizedDMusMPUWrite(). { DPRINT("WriteMPU"); NTSTATUS ntStatus = STATUS_IO_DEVICE_ERROR; if (!PortBase) { DPRINT("O: PortBase is zero\n"); return ntStatus; } PUCHAR deviceAddr = PortBase + MPU401_REG_DATA; if (IsCommand) { deviceAddr = PortBase + MPU401_REG_COMMAND; } ULONGLONG startTime = PcGetTimeInterval(0); while (PcGetTimeInterval(startTime) < GTI_MILLISECONDS(50)) { UCHAR status = READ_PORT_UCHAR(PortBase + MPU401_REG_STATUS); if (UartFifoOkForWrite(status)) // Is this a good time to write data? { // yep (Jon comment) WRITE_PORT_UCHAR(deviceAddr,Value); DPRINT("WriteMPU emitted 0x%02x",Value); ntStatus = STATUS_SUCCESS; break; } } return ntStatus; }