/**
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);
}
}
/**
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;
}
