private static void InitAta(Ata.ControllerIdEnum aControllerID,
Ata.BusPositionEnum aBusPosition)
{
var xIO = aControllerID == Ata.ControllerIdEnum.Primary
? Core.Global.BaseIOGroups.ATA1
: Core.Global.BaseIOGroups.ATA2;
var xATA = new AtaPio(xIO, aControllerID, aBusPosition);
if (xATA.DriveType == AtaPio.SpecLevel.Null)
{
return;
}
if (xATA.DriveType == AtaPio.SpecLevel.ATA)
{
BlockDevice.BlockDevice.Devices.Add(xATA);
Ata.AtaDebugger.Send("ATA device with speclevel ATA found.");
}
else
{
//Ata.AtaDebugger.Send("ATA device with spec level " + (int)xATA.DriveType +
// " found, which is not supported!");
return;
}
var xMbrData = new byte[512];
xATA.ReadBlock(0UL, 1U, xMbrData);
var xMBR = new MBR(xMbrData);
if (xMBR.EBRLocation != 0)
{
//EBR Detected
var xEbrData = new byte[512];
xATA.ReadBlock(xMBR.EBRLocation, 1U, xEbrData);
var xEBR = new EBR(xEbrData);
for (int i = 0; i < xEBR.Partitions.Count; i++)
{
//var xPart = xEBR.Partitions[i];
//var xPartDevice = new BlockDevice.Partition(xATA, xPart.StartSector, xPart.SectorCount);
//BlockDevice.BlockDevice.Devices.Add(xPartDevice);
}
}
// TODO Change this to foreach when foreach is supported
Ata.AtaDebugger.Send("Number of MBR partitions found: " + xMBR.Partitions.Count);
for (int i = 0; i < xMBR.Partitions.Count; i++)
{
var xPart = xMBR.Partitions[i];
if (xPart == null)
{
Console.WriteLine("Null partition found at idx " + i);
}
else
{
var xPartDevice = new Partition(xATA, xPart.StartSector, xPart.SectorCount);
BlockDevice.BlockDevice.Devices.Add(xPartDevice);
Console.WriteLine("Found partition at idx " + i);
}
}
}
public void Execute(string[] args)
{
string devn = "/dev/sda";
AtaPio bd = (AtaPio)Devices.getDevice(devn);
bd.ReadBlock(0, 1, bw.BaseStream.Data);
Console.WriteLine("Grunty OS Fixed disk utility");
Console.WriteLine("Enter command (m for help)");
while (true)
{
Console.Write("> ");
string command = Console.ReadLine();
if (command == "n")
{
Console.Write("Partition(1-4):");
string part = Console.ReadLine();
Console.Write("Blocks:");
int size = Conversions.StringToInt(Console.ReadLine());
bool greater_than_one = false;
int address = 446;
byte head_start = 1;
ushort start_sect = 1;
byte start_cyln = 1;
uint rel_sect = 1;
if (part == "1")
{
address = 446;
}
else if (part == "2")
{
address = 462;
}
else if (part == "3")
{
address = 478;
}
else if (part == "4")
{
address = 494;
}
if (address != 446)
{
BinaryReader br = new BinaryReader(bw.BaseStream);
br.BaseStream.Position = address - 16;
br.BaseStream.Position++;
br.BaseStream.Position += 3;
head_start = br.BaseStream.Read();
byte b1 = br.BaseStream.Read();
byte b2 = br.BaseStream.Read();
ushort us = BitConverter.ToUInt16(new byte[] { b1, b2 }, 0);
start_sect = getShort1(us);
start_cyln = (byte)getShort2(us);
rel_sect = br.ReadUInt32();
greater_than_one = true;
}
bw.BaseStream.Position = address;
bw.Write((byte)0);
bw.Write(head_start);
bw.Write((ushort)getShort(start_sect, start_cyln));
bw.Write((byte)1);
uint c = (uint)(size / 12);
if (greater_than_one)
{
c = (uint)((rel_sect + size) / 12);
}
bw.Write((byte)(c * 6));
bw.Write((ushort)getShort(12, (byte)c));
bw.Write((uint)rel_sect);
bw.Write((uint)size);
}
else if (command == "a")
{
Console.Write("Partition(1-4):");
string part = Console.ReadLine();
int address = 462;
if (part == "1")
{
address = 446;
}
else if (part == "2")
{
address = 462;
}
else if (part == "3")
{
address = 478;
}
else if (part == "4")
{
address = 494;
}
if (bw.BaseStream.Data[address] == 0)
{
bw.BaseStream.Data[address] = (byte)1;
}
else
{
bw.BaseStream.Data[address] = (byte)0;
}
}
else if (command == "t")
{
Console.Write("Partition(1-4):");
string part = Console.ReadLine();
Console.Write("System Label: ");
int t = Conversions.StringToInt(Console.ReadLine());
int address = 462;
if (part == "1")
{
address = 446;
}
else if (part == "2")
{
address = 462;
}
else if (part == "3")
{
address = 478;
}
else if (part == "4")
{
address = 494;
}
address += 5;
bw.BaseStream.Position = address;
bw.Write((byte)(uint)t);
}
else if (command == "q")
{
break;
}
else if (command == "w")
{
Console.WriteLine("Writing to partition table...");
bw.BaseStream.Close();
bd.WriteBlock(0, 1, bw.BaseStream.Data);
Console.WriteLine("Changes saved!");
break;
}
else if (command == "d")
{
Console.Write("Partition(1-4):");
string part = Console.ReadLine();
int address = 446;
if (part == "1")
{
address = 446;
}
else if (part == "2")
{
address = 462;
}
else if (part == "3")
{
address = 478;
}
else if (part == "4")
{
address = 494;
}
bw.BaseStream.Position = address;
for (int i = 1; i < 16; i++)
{
bw.Write((byte)0);
}
}
else if (command == "help" || command == "m")
{
Console.WriteLine(@"Command (m for help): m
Command action
a toggle a bootable flag
d delete a partition
m print this menu
n add a new partition
p print the partition table
q quit
t change a partition's system id
w write table to disk and exit");
}
}
}