// QueryEvent(s32 fd, u32 event_id) -> (u32, handle<copy, event>)
public ResultCode QueryEvent(ServiceCtx context)
{
NvResult errorCode = EnsureInitialized();
if (errorCode == NvResult.Success)
{
int fd = context.RequestData.ReadInt32();
uint eventId = context.RequestData.ReadUInt32();
errorCode = GetDeviceFileFromFd(fd, out NvDeviceFile deviceFile);
if (errorCode == NvResult.Success)
{
NvInternalResult internalResult = deviceFile.QueryEvent(out int eventHandle, eventId);
if (internalResult == NvInternalResult.NotImplemented)
{
throw new NvQueryEventNotImplementedException(context, deviceFile, eventId);
}
errorCode = ConvertInternalErrorCode(internalResult);
if (errorCode == NvResult.Success)
{
context.Response.HandleDesc = IpcHandleDesc.MakeCopy(eventHandle);
}
}
}
context.ResponseData.Write((uint)errorCode);
return(ResultCode.Success);
}
// Open(buffer<bytes, 5> path) -> (s32 fd, u32 error_code)
public ResultCode Open(ServiceCtx context)
{
NvResult errorCode = EnsureInitialized();
int fd = -1;
if (errorCode == NvResult.Success)
{
ulong pathPtr = context.Request.SendBuff[0].Position;
ulong pathSize = context.Request.SendBuff[0].Size;
string path = MemoryHelper.ReadAsciiString(context.Memory, pathPtr, (long)pathSize);
fd = Open(context, path);
if (fd == -1)
{
errorCode = NvResult.FileOperationFailed;
}
}
context.ResponseData.Write(fd);
context.ResponseData.Write((uint)errorCode);
return(ResultCode.Success);
}
[Command(12)] // 3.0.0+
// Ioctl3(s32 fd, u32 ioctl_cmd, buffer<bytes, 0x21> in_args) -> (u32 error_code, buffer<bytes, 0x22> out_args, buffer<bytes, 0x22> inline_out_buffer)
public ResultCode Ioctl3(ServiceCtx context)
{
NvResult errorCode = EnsureInitialized();
if (errorCode == NvResult.Success)
{
int fd = context.RequestData.ReadInt32();
NvIoctl ioctlCommand = context.RequestData.ReadStruct <NvIoctl>();
(long inlineOutBufferPosition, long inlineOutBufferSize) = context.Request.GetBufferType0x22(1);
errorCode = GetIoctlArgument(context, ioctlCommand, out Span <byte> arguments);
byte[] temp = new byte[inlineOutBufferSize];
context.Memory.Read((ulong)inlineOutBufferPosition, temp);
Span <byte> inlineOutBuffer = new Span <byte>(temp);
if (errorCode == NvResult.Success)
{
errorCode = GetDeviceFileFromFd(fd, out NvDeviceFile deviceFile);
if (errorCode == NvResult.Success)
{
NvInternalResult internalResult = deviceFile.Ioctl3(ioctlCommand, arguments, inlineOutBuffer);
if (internalResult == NvInternalResult.NotImplemented)
{
throw new NvIoctlNotImplementedException(context, deviceFile, ioctlCommand);
}
errorCode = ConvertInternalErrorCode(internalResult);
if ((ioctlCommand.DirectionValue & NvIoctl.Direction.Write) != 0)
{
context.Memory.Write((ulong)context.Request.GetBufferType0x22(0).Position, arguments.ToArray());
context.Memory.Write((ulong)inlineOutBufferPosition, inlineOutBuffer.ToArray());
}
}
}
}
context.ResponseData.Write((uint)errorCode);
return(ResultCode.Success);
}
// Close(s32 fd) -> u32 error_code
public ResultCode Close(ServiceCtx context)
{
NvResult errorCode = EnsureInitialized();
if (errorCode == NvResult.Success)
{
int fd = context.RequestData.ReadInt32();
errorCode = GetDeviceFileFromFd(fd, out NvDeviceFile deviceFile);
if (errorCode == NvResult.Success)
{
deviceFile.Close();
_deviceFileIdRegistry.Delete(fd);
}
}
context.ResponseData.Write((uint)errorCode);
return(ResultCode.Success);
}
// MapSharedMemory(s32 fd, u32 argument, handle<copy, shared_memory>) -> u32 error_code
public ResultCode MapSharedMemory(ServiceCtx context)
{
NvResult errorCode = EnsureInitialized();
if (errorCode == NvResult.Success)
{
int fd = context.RequestData.ReadInt32();
uint argument = context.RequestData.ReadUInt32();
int sharedMemoryHandle = context.Request.HandleDesc.ToCopy[0];
errorCode = GetDeviceFileFromFd(fd, out NvDeviceFile deviceFile);
if (errorCode == NvResult.Success)
{
errorCode = ConvertInternalErrorCode(deviceFile.MapSharedMemory(sharedMemoryHandle, argument));
}
}
context.ResponseData.Write((uint)errorCode);
return(ResultCode.Success);
}
