//****************************************************************************
// CheckSMARTEnable - Check if SMART enable
// FUNCTION: Send a SMART_ENABLE_SMART_OPERATIONS command to the drive
// bDriveNum = 0-3
//***************************************************************************
private static bool CheckSMARTEnable(int hDrive, IDE_DRIVE_NUMBER DriveNum)
{
//Set up data structures for Enable SMART Command.
SENDCMDINPARAMS SCIP = null;
SENDCMDOUTPARAMS SCOP = null;
int lpcbBytesReturned = 0;
{
SCIP.cBufferSize = 0;
{
SCIP.irDriveRegs.bFeaturesReg = SMART_ENABLE_SMART_OPERATIONS;
SCIP.irDriveRegs.bCylLowReg = SMART_CYL_LOW;
SCIP.irDriveRegs.bCylHighReg = SMART_CYL_HI;
//Compute the drive number.
SCIP.irDriveRegs.bDriveHeadReg = 0xa0;
// Or (DriveNum And 1) * 16
SCIP.irDriveRegs.bCommandReg = IDE_EXECUTE_SMART_FUNCTION;
}
SCIP.bDriveNumber = DriveNum;
}
return(Convert.ToBoolean(DeviceIoControl(hDrive, DFP_SEND_DRIVE_COMMAND, ref SCIP, Marshal.SizeOf(SCIP) - 4, ref SCOP, Marshal.SizeOf(SCOP) - 4, ref lpcbBytesReturned, 0L)));
}
//***************************************************************************
// ReadAttributesCmd
// FUNCTION: Send a SMART_READ_ATTRIBUTE_VALUES command to the drive
// bDriveNum = 0-3
//***************************************************************************
public static string GetDriveInfo(IDE_DRIVE_NUMBER DriveNum)
{
string functionReturnValue = null;
int hDrive = 0;
hDrive = OpenSmart(DriveNum);
if (hDrive == INVALID_HANDLE_VALUE)
{
return(null);
}
if (CheckSMARTEnable(hDrive, DriveNum))
{
functionReturnValue = IdentifyDrive(hDrive, IDE_ID_FUNCTION);
}
else
{
functionReturnValue = null;
}
CloseHandle(hDrive);
return(functionReturnValue);
}
//***************************************************************************
// Open SMART to allow DeviceIoControl communications. Return SMART handle
//***************************************************************************
private static int OpenSmart(IDE_DRIVE_NUMBER drv_num)
{
return(CreateFile(string.Format("\\\\.\\PhysicalDrive{0}", Convert.ToInt32(drv_num)), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0L, OPEN_EXISTING, 0, 0));
}
