internal static extern bool DeviceIoControlIde(SafeFileHandle hDevice,
WindowsIoctl ioControlCode,
ref IdePassThroughDirect inBuffer,
uint nInBufferSize,
ref IdePassThroughDirect outBuffer,
uint nOutBufferSize,
ref uint pBytesReturned,
IntPtr overlapped);
/// <summary>
/// Sends an ATA command in 28-bit LBA mode using undocumented Windows XP ioctl
/// </summary>
/// <returns>0 if no error occurred, otherwise, errno</returns>
/// <param name="fd">File handle</param>
/// <param name="buffer">Buffer for SCSI command response</param>
/// <param name="timeout">Timeout in seconds</param>
/// <param name="duration">Time it took to execute the command in milliseconds</param>
/// <param name="sense"><c>True</c> if ATA error returned non-OK status</param>
/// <param name="registers">Registers to send to drive</param>
/// <param name="errorRegisters">Registers returned by drive</param>
/// <param name="protocol">ATA protocol to use</param>
internal static int SendIdeCommand(SafeFileHandle fd, AtaRegistersLba28 registers,
out AtaErrorRegistersLba28 errorRegisters, AtaProtocol protocol,
ref byte[] buffer, uint timeout, out double duration, out bool sense)
{
duration = 0;
sense = false;
errorRegisters = new AtaErrorRegistersLba28();
if (buffer == null)
{
return(-1);
}
IdePassThroughDirect iptd = new IdePassThroughDirect
{
CurrentTaskFile = new AtaTaskFile
{
Command = registers.Command,
CylinderHigh = registers.LbaHigh,
CylinderLow = registers.LbaMid,
DeviceHead = registers.DeviceHead,
Features = registers.Feature,
SectorCount = registers.SectorCount,
SectorNumber = registers.LbaLow
},
DataBufferSize = 512,
DataBuffer = new byte[512]
};
uint k = 0;
int error = 0;
Array.Copy(buffer, 0, iptd.DataBuffer, 0, buffer.Length);
DateTime start = DateTime.Now;
sense = !Extern.DeviceIoControlIde(fd, WindowsIoctl.IoctlIdePassThrough, ref iptd,
(uint)Marshal.SizeOf(iptd), ref iptd, (uint)Marshal.SizeOf(iptd), ref k,
IntPtr.Zero);
DateTime end = DateTime.Now;
if (sense)
{
error = Marshal.GetLastWin32Error();
}
buffer = new byte[k - 12];
Array.Copy(iptd.DataBuffer, 0, buffer, 0, buffer.Length);
duration = (end - start).TotalMilliseconds;
errorRegisters.LbaHigh = iptd.CurrentTaskFile.CylinderHigh;
errorRegisters.LbaMid = iptd.CurrentTaskFile.CylinderLow;
errorRegisters.DeviceHead = iptd.CurrentTaskFile.DeviceHead;
errorRegisters.Error = iptd.CurrentTaskFile.Error;
errorRegisters.LbaLow = iptd.CurrentTaskFile.SectorNumber;
errorRegisters.SectorCount = iptd.CurrentTaskFile.SectorCount;
errorRegisters.Status = iptd.CurrentTaskFile.Status;
sense = errorRegisters.Error != 0 || (errorRegisters.Status & 0xA5) != 0;
return(error);
}