/**
Insert one pre-fetched key into the Unicode FIFO buffer.
@param TerminalDevice Terminal driver private structure.
@param Input The key will be input.
@retval TRUE If insert successfully.
@retval FLASE If Unicode FIFO buffer is full before key insertion,
and the key is lost.
**/
BOOLEAN
UnicodeFiFoInsertOneKey (
TERMINAL_DEV *TerminalDevice,
UINT16 Input
)
{
UINT8 Tail;
Tail = TerminalDevice->UnicodeFiFo->Tail;
ASSERT (Tail < FIFO_MAX_NUMBER + 1);
if (IsUnicodeFiFoFull (TerminalDevice)) {
//
// Unicode FIFO is full
//
return FALSE;
}
TerminalDevice->UnicodeFiFo->Data[Tail] = Input;
TerminalDevice->UnicodeFiFo->Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));
return TRUE;
}
/**
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);
}
}