public static void DetectATADrive(ATAControllerIdEnum aControllerID, ATABusPositionEnum aBusPosition)
{
bool primary = aControllerID == ATAControllerIdEnum.Primary;
var xBAR0 = (ushort)(!primary ? 0x0170 : 0x01F0);
var xBAR1 = (ushort)(!primary ? 0x0374 : 0x03F4);
ushort IOControl = (ushort)(xBAR1 + 2);
ushort IOCommand = (ushort)(xBAR0 + 7);
ushort IOData = (ushort)xBAR0;
ushort IOStatus = (ushort)(xBAR0 + 7);
ushort IODeviceSelect = (ushort)(xBAR0 + 6);
ushort IOLBA0 = (ushort)(xBAR0 + 3);
ushort IOLBA1 = (ushort)(xBAR0 + 4);
ushort IOLBA2 = (ushort)(xBAR0 + 5);
ushort IOSectorCount = (ushort)(xBAR0 + 2);
IOPort.outb(IOControl, 0x02);
ATASpecLevel DriveType = DiscoverATADrive(IOLBA1, IOLBA2, IOCommand, IOStatus, IODeviceSelect, aBusPosition);
if (DriveType == ATASpecLevel.Null)
{
return;
}
if (DriveType != ATASpecLevel.ATA)
{
return;
}
DetectedDiskDrives.Add(new ATADiskDrive(primary, aControllerID, aBusPosition, DriveType));
}
public ATADiskDrive(bool primary, ATAControllerIdEnum aControllerId, ATABusPositionEnum aBusPosition, ATASpecLevel mDriveType)
{
var xBAR0 = (ushort)(!primary ? 0x0170 : 0x01F0);
var xBAR1 = (ushort)(!primary ? 0x0374 : 0x03F4);
IOControl = (ushort)(xBAR1 + 2);
IOCommand = (ushort)(xBAR0 + 7);
IOData = (ushort)xBAR0;
IOStatus = (ushort)(xBAR0 + 7);
IODeviceSelect = (ushort)(xBAR0 + 6);
IOLBA0 = (ushort)(xBAR0 + 3);
IOLBA1 = (ushort)(xBAR0 + 4);
IOLBA2 = (ushort)(xBAR0 + 5);
IOSectorCount = (ushort)(xBAR0 + 2);
mControllerID = aControllerId;
mBusPosition = aBusPosition;
DriveType = mDriveType;
if (DriveType == ATASpecLevel.ATA)
{
SendATACmd(ATACmd.Identify, IOCommand, IOStatus);
}
else
{
SendATACmd(ATACmd.IdentifyPacket, IOCommand, IOStatus);
}
var xBuff = (ushort *)Heap.alloc(512);
for (int i = 0; i < 256; i++)
{
ushort read = IOPort.inw(IOData);
byte upper = (byte)(read >> 8);
byte lower = (byte)read;
xBuff[i] = (ushort)((lower << 8) | upper);
}
SerialNo = GetString(xBuff, 10, 20);
FirmwareRev = GetString(xBuff, 23, 8);
ModelNo = GetString(xBuff, 27, 40);
DeviceLa = GetString(xBuff, 54, 40);
uint l = 0;
byte *ptr = DeviceLa;
while (*ptr != 0)
{
ptr++;
l++;
}
char[] tmp = new char[l];
for (int i = 0; i < l; i++)
{
tmp[i] = (char)DeviceLa[i];
}
Label = new string(tmp);
BlockCount = ((uint)xBuff[61] << 16 | xBuff[60]) - 1;
LBA48Bit = (xBuff[83] & 0x40) != 0;
if (LBA48Bit)
{
BlockCount = ((ulong)xBuff[102] << 32 | (ulong)xBuff[101] << 16 | (ulong)xBuff[100]) - 1;
}
byte *xMbrData = (byte *)Heap.alloc(512);
ReadBlock(0, 1, xMbrData);
MBR xMBR = new MBR();
xMBR.Setup(this, xMbrData);
for (int i = 0; i < xMBR.partitions.Count; i++)
{
DetectedPartitions.Add(xMBR.partitions[i]);
}
}