/* Ring the door bell to notify XHCI there is a transaction to be executed. */
VOID XhcPeiRingDoorBell(IN PEI_XHC_DEV *Xhc, IN UINT8 SlotId, IN UINT8 Dci)
/* Ring the door bell to notify XHCI there is a transaction to be executed. */
VOID XhcPeiRingDoorBell(IN PEI_XHC_DEV *Xhc, IN UINT8 SlotId, IN UINT8 Dci)
{
  if (SlotId == 0) {
    XhcPeiWriteDoorBellReg (Xhc, 0, 0);
  } else {
    XhcPeiWriteDoorBellReg (Xhc, SlotId * sizeof (UINT32), Dci);
  }
}