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using System.Collections.Generic;
using System.IO;
namespace Ryujinx.HLE.Loaders.Npdm
{
public class KernelAccessControlIRQ
{
public uint IRQ0;
public uint IRQ1;
}
public class KernelAccessControlMMIO
{
public ulong Address;
public ulong Size;
public bool IsRO;
public bool IsNormal;
}
public class KernelAccessControlItems
{
public bool HasKernelFlags;
public uint LowestThreadPriority;
public uint HighestThreadPriority;
public uint LowestCpuId;
public uint HighestCpuId;
public bool HasSVCFlags;
public int[] SVCsAllowed;
public List<KernelAccessControlMMIO> NormalMMIO;
public List<KernelAccessControlMMIO> PageMMIO;
public List<KernelAccessControlIRQ> IRQ;
public bool HasApplicationType;
public int ApplicationType;
public bool HasKernelVersion;
public int KernelVersionRelease;
public bool HasHandleTableSize;
public int HandleTableSize;
public bool HasDebugFlags;
public bool AllowDebug;
public bool ForceDebug;
}
public class KernelAccessControl
{
public KernelAccessControlItems[] Items;
public KernelAccessControl(Stream FSAccessControlsStream, int Offset, int Size)
{
FSAccessControlsStream.Seek(Offset, SeekOrigin.Begin);
BinaryReader Reader = new BinaryReader(FSAccessControlsStream);
Items = new KernelAccessControlItems[Size / 4];
for (int i = 0; i < Size / 4; i++)
{
uint Descriptor = Reader.ReadUInt32();
if (Descriptor == 0xFFFFFFFF) //Ignore the descriptor
{
continue;
}
Items[i] = new KernelAccessControlItems();
int LowBits = 0;
while ((Descriptor & 1) != 0)
{
Descriptor >>= 1;
LowBits++;
}
Descriptor >>= 1;
switch (LowBits)
{
case 3: // Kernel flags
{
Items[i].HasKernelFlags = true;
Items[i].HighestThreadPriority = Descriptor & 0x3F;
Items[i].LowestThreadPriority = (Descriptor >> 6) & 0x3F;
Items[i].LowestCpuId = (Descriptor >> 12) & 0xFF;
Items[i].HighestCpuId = (Descriptor >> 20) & 0xFF;
break;
}
case 4: // Syscall mask
{
Items[i].HasSVCFlags = true;
Items[i].SVCsAllowed = new int[0x80];
int SysCallBase = (int)(Descriptor >> 24) * 0x18;
for (int SysCall = 0; SysCall < 0x18 && SysCallBase + SysCall < 0x80; SysCall++)
{
Items[i].SVCsAllowed[SysCallBase + SysCall] = (int)Descriptor & 1;
Descriptor >>= 1;
}
break;
}
case 6: // Map IO/Normal - Never tested.
{
KernelAccessControlMMIO TempNormalMMIO = new KernelAccessControlMMIO
{
Address = (Descriptor & 0xFFFFFF) << 12,
IsRO = (Descriptor >> 24) != 0
};
if (i == Size / 4 - 1)
{
throw new InvalidNpdmException("Invalid Kernel Access Control Descriptors!");
}
Descriptor = Reader.ReadUInt32();
if ((Descriptor & 0x7F) != 0x3F)
{
throw new InvalidNpdmException("Invalid Kernel Access Control Descriptors!");
}
Descriptor >>= 7;
TempNormalMMIO.Size = (Descriptor & 0xFFFFFF) << 12;
TempNormalMMIO.IsNormal = (Descriptor >> 24) != 0;
Items[i].NormalMMIO.Add(TempNormalMMIO);
i++;
break;
}
case 7: // Map Normal Page - Never tested.
{
KernelAccessControlMMIO TempPageMMIO = new KernelAccessControlMMIO
{
Address = Descriptor << 12,
Size = 0x1000,
IsRO = false,
IsNormal = false
};
Items[i].PageMMIO.Add(TempPageMMIO);
break;
}
case 11: // IRQ Pair - Never tested.
{
KernelAccessControlIRQ TempIRQ = new KernelAccessControlIRQ
{
IRQ0 = Descriptor & 0x3FF,
IRQ1 = (Descriptor >> 10) & 0x3FF
};
break;
}
case 13: // App Type
{
Items[i].HasApplicationType = true;
Items[i].ApplicationType = (int)Descriptor & 7;
break;
}
case 14: // Kernel Release Version
{
Items[i].HasKernelVersion = true;
Items[i].KernelVersionRelease = (int)Descriptor;
break;
}
case 15: // Handle Table Size
{
Items[i].HasHandleTableSize = true;
Items[i].HandleTableSize = (int)Descriptor;
break;
}
case 16: // Debug Flags
{
Items[i].HasDebugFlags = true;
Items[i].AllowDebug = (Descriptor & 1) != 0;
Items[i].ForceDebug = ((Descriptor >> 1) & 1) != 0;
break;
}
}
}
}
}
}
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