Esempio n. 1
0
/**
  Translate all raw data in the Raw FIFO into unicode, and insert
  them into Unicode FIFO.

  @param TerminalDevice          The terminal device.

**/
VOID
AnsiRawDataToUnicode (
  IN  TERMINAL_DEV    *TerminalDevice
  )
{
  UINT8 RawData;

  //
  // pop the raw data out from the raw fifo,
  // and translate it into unicode, then push
  // the unicode into unicode fifo, until the raw fifo is empty.
  //
  while (!IsRawFiFoEmpty (TerminalDevice) && !IsUnicodeFiFoFull (TerminalDevice)) {

    RawFiFoRemoveOneKey (TerminalDevice, &RawData);

    UnicodeFiFoInsertOneKey (TerminalDevice, (UINT16) RawData);
  }
}
Esempio n. 2
0
/**
  Remove one pre-fetched key out of the Raw Data FIFO.

  @param  TerminalDevice       Terminal driver private structure.
  @param  Output               The key will be removed.

  @retval TRUE                 If insert successfully.
  @retval FLASE                If Raw Data FIFO buffer is empty before remove operation.

**/
BOOLEAN
RawFiFoRemoveOneKey (
  TERMINAL_DEV  *TerminalDevice,
  UINT8         *Output
  )
{
  UINT8 Head;

  Head = TerminalDevice->RawFiFo->Head;

  if (IsRawFiFoEmpty (TerminalDevice)) {
    //
    //  FIFO is empty
    //
    *Output = 0;
    return FALSE;
  }

  *Output                       = TerminalDevice->RawFiFo->Data[Head];

  TerminalDevice->RawFiFo->Head  = (UINT8) ((Head + 1) % (RAW_FIFO_MAX_NUMBER + 1));

  return TRUE;
}