public byte[] ReadBytes(AcpiObject.RegionSpace regionSpace, ulong offset, ulong length)
{
byte[] result = new byte[length];
switch (regionSpace)
{
case AcpiObject.RegionSpace.SystemMemory:
IoMemory region = IoMemory.MapPhysicalMemory(offset, length, true /*readable*/, false /*writable*/);
for (ulong i = 0; i < length; i++)
{
result[i] = region.Read8((int)i);
}
break;
default:
throw new Exception("ReadBytes() only supported for SystemMemory regions");
}
#if DUMP_RAW_READ_WRITES
DebugStub.Write("ACPI read: space: " + regionSpace + ", offset: " + offset + ", bytes: " + length + ", result: {");
for (int i = 0; i < result.Length; i++)
{
DebugStub.Write(result[i].ToString("X"));
if (i < result.Length - 1)
{
DebugStub.Write(",");
}
}
DebugStub.WriteLine("}");
#endif
return(result);
}
public uint Read32(AcpiObject.RegionSpace regionSpace, ulong offset)
{
uint result;
switch (regionSpace)
{
case AcpiObject.RegionSpace.SystemMemory:
IoMemory region = IoMemory.MapPhysicalMemory(offset, 4, true /*readable*/, false /*writable*/);
result = region.Read32(0);
break;
case AcpiObject.RegionSpace.SystemIO:
IoPort port = new IoPort((ushort)offset, 4, Access.Read);
result = port.Read32();
break;
case AcpiObject.RegionSpace.PCI_Config:
pciConfigAddressPort.Write32(PciConfigEnableMask | (uint)offset);
result = pciConfigDataPort.Read32();
break;
default:
throw new Exception("Unimplemented operation region type" + regionSpace);
}
#if DUMP_RAW_READ_WRITES
DebugStub.WriteLine("ACPI read: space: " + regionSpace + ", offset: " + offset + ", bytes: " + 4 + ", result: " + result.ToString("X"));
#endif
return(result);
}
public void Write32(AcpiObject.RegionSpace regionSpace, ulong offset, uint value)
{
#if DUMP_RAW_READ_WRITES
DebugStub.WriteLine("ACPI write: space: " + regionSpace + ", offset: " + offset + ", bytes: " + 4 + ", value: " + value.ToString("X"));
#endif
switch (regionSpace)
{
case AcpiObject.RegionSpace.SystemMemory:
IoMemory region = IoMemory.MapPhysicalMemory(offset, 4, true /*readable*/, true /*writable*/);
region.Write32(0, value);
break;
case AcpiObject.RegionSpace.SystemIO:
IoPort port = new IoPort((ushort)offset, 4, Access.ReadWrite);
port.Write32(value);
break;
case AcpiObject.RegionSpace.PCI_Config:
pciConfigAddressPort.Write32(PciConfigEnableMask | (uint)offset);
pciConfigDataPort.Write32(value);
break;
default:
throw new Exception("Unimplemented operation region type" + regionSpace);
}
}
public ushort Read16(AcpiObject.RegionSpace regionSpace, ulong offset)
{
ushort result;
switch (regionSpace)
{
case AcpiObject.RegionSpace.SystemMemory:
// TODO: This is a first stab - ideally the AcpiObject.OperationRegion
// ought to be holding onto an IoMemoryRange and passing it in.
IoMemory region = IoMemory.MapPhysicalMemory(offset, 2, true /*readable*/, false /*writable*/);
result = region.Read16(0);
break;
case AcpiObject.RegionSpace.SystemIO:
IoPort port = new IoPort((ushort)offset, 2, Access.Read);
result = port.Read16();
break;
case AcpiObject.RegionSpace.PCI_Config:
pciConfigAddressPort.Write32(PciConfigEnableMask | (uint)offset);
result = pciConfigDataPort.Read16();
break;
default:
throw new Exception("Unimplemented operation region type" + regionSpace);
}
#if DUMP_RAW_READ_WRITES
DebugStub.WriteLine("ACPI read: space: " + regionSpace + ", offset: " + offset + ", bytes: " + 2 + ", result: " + result.ToString("X"));
#endif
return(result);
}