public static extern bool DeviceIoControl(
SafeFileHandle hDevice,
uint dwIoControlCode,
ref ATADeviceQuiry lpInBuffer,
uint nInBufferSize,
ref ATADeviceQuiry lpOutBuffer,
uint nOutBufferSize,
out uint lpBytesReturned,
IntPtr lpOverlapped);
public static IDENTIFY_DEVICE_DATA?IdentifyDefice(string deviceName)
{
ATA_PASS_THROUGH_EX aptx = new ATA_PASS_THROUGH_EX();
ATADeviceQuiry adqry = new ATADeviceQuiry();
IDENTIFY_DEVICE_DATA idd = new IDENTIFY_DEVICE_DATA();
adqry.reqDataBuf = new byte[512];
adqry.header.Length = (ushort)Marshal.SizeOf(aptx);
adqry.header.AtaFlags = ATA_FLAGS_DATA_IN;
adqry.header.DataTransferLength = (ushort)adqry.reqDataBuf.Length; //512
adqry.header.DataBufferOffset = Marshal.OffsetOf(typeof(ATADeviceQuiry), "reqDataBuf");
adqry.header.TimeOutValue = 1;
adqry.header.PreviousTaskFile = new IDEREGS();
adqry.header.CurrentTaskFile = new IDEREGS();
adqry.header.CurrentTaskFile.bCommandReg = WIN_IDENTIFYDEVICE;
uint IOCTL_ATA_PASS_THROUGH = CTL_CODE(
IOCTL_SCSI_BASE,
0x040b,
METHOD_BUFFERED,
FILE_READ_ACCESS | FILE_WRITE_ACCESS);
SafeFileHandle driveHandle = Kernel32Methods.CreateFileW(
lpFileName: deviceName,
dwDesiredAccess: Kernel32Methods.GENERIC_READ | Kernel32Methods.GENERIC_WRITE, // Administrative privilege is required
dwShareMode: Kernel32Methods.FILE_SHARE_READ | Kernel32Methods.FILE_SHARE_WRITE,
lpSecurityAttributes: IntPtr.Zero,
dwCreationDisposition: Kernel32Methods.OPEN_EXISTING,
dwFlagsAndAttributes: Kernel32Methods.FILE_ATTRIBUTE_NORMAL,
hTemplateFile: IntPtr.Zero);
if (driveHandle == null || driveHandle.IsInvalid)
{
#if DEBUG
string message = GetErrorMessage(Marshal.GetLastWin32Error());
Console.WriteLine($"CreateFile (IdentifyDevice) with disk {deviceName} failed. Error: " + message);
#endif
driveHandle?.Close();
return(null);
}
uint returnBytesCount;
bool result = Kernel32Methods.DeviceIoControl(
hDevice: driveHandle,
dwIoControlCode: IOCTL_ATA_PASS_THROUGH,
lpInBuffer: ref adqry,
nInBufferSize: (uint)Marshal.SizeOf(adqry),
lpOutBuffer: ref adqry,
nOutBufferSize: (uint)Marshal.SizeOf(adqry),
lpBytesReturned: out returnBytesCount,
lpOverlapped: IntPtr.Zero);
driveHandle.Close();
if (result == false)
{
#if DEBUG
string message = GetErrorMessage(Marshal.GetLastWin32Error());
Console.WriteLine($"DeviceIoControl (IdentifyDevice) with disk {deviceName} failed. Error: " + message);
#endif
return(null);
}
// Raw memory copy of reqDataBuf byte array to IDENTIFY_DEVICE struct
IntPtr tempPtr = Marshal.AllocHGlobal(Marshal.SizeOf(idd));
Marshal.Copy(adqry.reqDataBuf, 0, tempPtr, adqry.reqDataBuf.Length);
idd = (IDENTIFY_DEVICE_DATA)Marshal.PtrToStructure(tempPtr, idd.GetType());
Marshal.FreeHGlobal(tempPtr);
return(idd);
}
public static bool SetAPM(string driveName, byte apmVal)
{
ATA_PASS_THROUGH_EX aptx = new ATA_PASS_THROUGH_EX();
ATADeviceQuiry adq = new ATADeviceQuiry();
adq.reqDataBuf = new byte[512];
aptx.Length = (ushort)Marshal.SizeOf(aptx);;
aptx.AtaFlags = ATA_FLAGS_DATA_IN;
aptx.DataTransferLength = (ushort)adq.reqDataBuf.Length; //512;
aptx.TimeOutValue = 1;
aptx.DataBufferOffset = Marshal.OffsetOf(typeof(ATADeviceQuiry), "reqDataBuf");
aptx.PreviousTaskFile = new IDEREGS();
aptx.CurrentTaskFile = new IDEREGS();
aptx.CurrentTaskFile.bCommandReg = SET_FEATURES;
switch (apmVal)
{
case 0:
{
throw new ArgumentException("APM value cannot be 0");
}
// Disable APM
case DISABLE_APM_VALUE:
{
aptx.CurrentTaskFile.bFeaturesReg = SETFEATURES_DIS_APM;
break;
}
// Set APM to value
default:
{
aptx.CurrentTaskFile.bFeaturesReg = SETFEATURES_EN_APM;
aptx.CurrentTaskFile.bSectorCountReg = apmVal;
break;
}
}
adq.header = aptx;
uint IOCTL_ATA_PASS_THROUGH = CTL_CODE(
IOCTL_SCSI_BASE,
0x040b,
METHOD_BUFFERED,
FILE_READ_ACCESS | FILE_WRITE_ACCESS);
SafeFileHandle driveHandle = Kernel32Methods.CreateFileW(
lpFileName: driveName,
dwDesiredAccess: Kernel32Methods.GENERIC_READ | Kernel32Methods.GENERIC_WRITE, // Administrative privilege is required
dwShareMode: Kernel32Methods.FILE_SHARE_READ | Kernel32Methods.FILE_SHARE_WRITE,
lpSecurityAttributes: IntPtr.Zero,
dwCreationDisposition: Kernel32Methods.OPEN_EXISTING,
dwFlagsAndAttributes: Kernel32Methods.FILE_ATTRIBUTE_NORMAL,
hTemplateFile: IntPtr.Zero);
if (driveHandle == null || driveHandle.IsInvalid)
{
#if DEBUG
string message = GetErrorMessage(Marshal.GetLastWin32Error());
Console.WriteLine($"CreateFile (APMControl) with disk {driveName} failed. Error: " + message);
#endif
driveHandle?.Close();
return(false);
}
uint returnBytesCount;
bool result = Kernel32Methods.DeviceIoControl(
hDevice: driveHandle,
dwIoControlCode: IOCTL_ATA_PASS_THROUGH,
lpInBuffer: ref adq,
nInBufferSize: (uint)Marshal.SizeOf(adq),
lpOutBuffer: ref adq,
nOutBufferSize: (uint)Marshal.SizeOf(adq),
lpBytesReturned: out returnBytesCount,
lpOverlapped: IntPtr.Zero);
driveHandle.Close();
if (result == false)
{
#if DEBUG
string message = GetErrorMessage(Marshal.GetLastWin32Error());
Console.WriteLine($"DeviceIoControl (APMControl) with disk {driveName} failed. Error: " + message);
#endif
return(false);
}
return(result);
}
