public bool ReadNameAndFirmwareRevision(out string name, out string firmwareRevision)
{
if (_handle.IsClosed)
{
throw new ObjectDisposedException(nameof(WindowsSmart));
}
var parameter = new Kernel32.SENDCMDINPARAMS
{
bDriveNumber = (byte)_driveNumber,
irDriveRegs = { bCommandReg = Kernel32.ATA_COMMAND.ATA_IDENTIFY_DEVICE }
};
bool valid = Kernel32.DeviceIoControl(_handle, Kernel32.DFP.DFP_RECEIVE_DRIVE_DATA, ref parameter, Marshal.SizeOf(parameter),
out Kernel32.IDENTIFYCMDOUTPARAMS result, Marshal.SizeOf <Kernel32.IDENTIFYCMDOUTPARAMS>(), out _, IntPtr.Zero);
if (!valid)
{
name = null;
firmwareRevision = null;
return(false);
}
name = GetString(result.Identify.ModelNumber);
firmwareRevision = GetString(result.Identify.FirmwareRevision);
return(true);
}
public bool EnableSmart()
{
if (_handle.IsClosed)
{
throw new ObjectDisposedException(nameof(WindowsSmart));
}
var parameter = new Kernel32.SENDCMDINPARAMS
{
bDriveNumber = (byte)_driveNumber,
irDriveRegs = { bFeaturesReg = Kernel32.SMART_FEATURES.ENABLE_SMART, bCylLowReg = Kernel32.SMART_LBA_MID, bCylHighReg = Kernel32.SMART_LBA_HI, bCommandReg = Kernel32.ATA_COMMAND.ATA_SMART }
};
return(Kernel32.DeviceIoControl(_handle, Kernel32.DFP.DFP_SEND_DRIVE_COMMAND, ref parameter, Marshal.SizeOf(parameter),
out Kernel32.SENDCMDOUTPARAMS _, Marshal.SizeOf <Kernel32.SENDCMDOUTPARAMS>(), out _, IntPtr.Zero));
}
/// <summary>
/// Reads Smart health status of the drive
/// </summary>
/// <returns>True, if drive is healthy; False, if unhealthy; Null, if it cannot be read</returns>
public bool?ReadSmartHealth()
{
if (_handle.IsClosed)
{
throw new ObjectDisposedException(nameof(WindowsSmart));
}
var parameter = new Kernel32.SENDCMDINPARAMS
{
bDriveNumber = (byte)_driveNumber,
irDriveRegs =
{
bFeaturesReg = Kernel32.SMART_FEATURES.RETURN_SMART_STATUS,
bCylLowReg = Kernel32.SMART_LBA_MID,
bCylHighReg = Kernel32.SMART_LBA_HI,
bCommandReg = Kernel32.ATA_COMMAND.ATA_SMART
}
};
bool isValid = Kernel32.DeviceIoControl(_handle, Kernel32.DFP.DFP_SEND_DRIVE_COMMAND, ref parameter, Marshal.SizeOf(parameter),
out Kernel32.STATUSCMDOUTPARAMS result, Marshal.SizeOf <Kernel32.STATUSCMDOUTPARAMS>(), out _, IntPtr.Zero);
if (!isValid)
{
return(null);
}
// reference: https://github.com/smartmontools/smartmontools/blob/master/smartmontools/atacmds.cpp
if (Kernel32.SMART_LBA_HI == result.irDriveRegs.bCylHighReg && Kernel32.SMART_LBA_MID == result.irDriveRegs.bCylLowReg)
{
// high and mid registers are unchanged, which means that the drive is healthy
return(true);
}
else if (Kernel32.SMART_LBA_HI_EXCEEDED == result.irDriveRegs.bCylHighReg && Kernel32.SMART_LBA_MID_EXCEEDED == result.irDriveRegs.bCylLowReg)
{
// high and mid registers are exceeded, which means that the drive is unhealthy
return(false);
}
else
{
// response is not clear
return(null);
}
}
public Kernel32.SMART_THRESHOLD[] ReadSmartThresholds()
{
if (_handle.IsClosed)
{
throw new ObjectDisposedException(nameof(WindowsSmart));
}
var parameter = new Kernel32.SENDCMDINPARAMS
{
bDriveNumber = (byte)_driveNumber, irDriveRegs =
{
bFeaturesReg = Kernel32.SMART_FEATURES.READ_THRESHOLDS,
bCylLowReg = Kernel32.SMART_LBA_MID,
bCylHighReg = Kernel32.SMART_LBA_HI,
bCommandReg = Kernel32.ATA_COMMAND.ATA_SMART
}
};
bool isValid = Kernel32.DeviceIoControl(_handle, Kernel32.DFP.DFP_RECEIVE_DRIVE_DATA, ref parameter, Marshal.SizeOf(parameter),
out Kernel32.THRESHOLDCMDOUTPARAMS result, Marshal.SizeOf <Kernel32.THRESHOLDCMDOUTPARAMS>(), out _, IntPtr.Zero);
return(isValid ? result.Thresholds : new Kernel32.SMART_THRESHOLD[0]);
}
public Kernel32.SMART_ATTRIBUTE[] ReadSmartData()
{
if (_handle.IsClosed)
{
throw new ObjectDisposedException("WindowsATASmart");
}
var parameter = new Kernel32.SENDCMDINPARAMS
{
bDriveNumber = (byte)_driveNumber, irDriveRegs =
{
bFeaturesReg = Kernel32.SMART_FEATURES.SMART_READ_DATA,
bCylLowReg = Kernel32.SMART_LBA_MID,
bCylHighReg = Kernel32.SMART_LBA_HI,
bCommandReg = Kernel32.ATA_COMMAND.ATA_SMART
}
};
bool isValid = Kernel32.DeviceIoControl(_handle, Kernel32.DFP.DFP_RECEIVE_DRIVE_DATA, ref parameter, Marshal.SizeOf(parameter),
out Kernel32.ATTRIBUTECMDOUTPARAMS result, Marshal.SizeOf <Kernel32.ATTRIBUTECMDOUTPARAMS>(), out _, IntPtr.Zero);
return(isValid ? result.Attributes : new Kernel32.SMART_ATTRIBUTE[0]);
}
