+++ /dev/null
-/** @file
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- WinNtGopInput.c
-
-Abstract:
-
- This file produces the Simple Text In for an Gop window.
-
- This stuff is linked at the hip to the Window, since the window
- processing is done in a thread kicked off in WinNtGopImplementation.c
-
- Since the window information is processed in an other thread we need
- a keyboard Queue to pass data about. The Simple Text In code just
- takes data off the Queue. The WinProc message loop takes keyboard input
- and places it in the Queue.
-
-
-**/
-
-#include "WinNtGop.h"
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
-
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-GopPrivateCreateQ (
- IN GOP_PRIVATE_DATA *Private
- )
-{
- Private->WinNtThunk->InitializeCriticalSection (&Private->QCriticalSection);
-
- Private->Queue.Front = 0;
- Private->Queue.Rear = MAX_Q - 1;
- Private->Queue.Count = 0;
- return EFI_SUCCESS;
-}
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
-
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-GopPrivateDestroyQ (
- IN GOP_PRIVATE_DATA *Private
- )
-{
- Private->Queue.Count = 0;
- Private->WinNtThunk->DeleteCriticalSection (&Private->QCriticalSection);
- return EFI_SUCCESS;
-}
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
- @param Key TODO: add argument description
-
- @retval EFI_NOT_READY TODO: Add description for return value
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-GopPrivateAddQ (
- IN GOP_PRIVATE_DATA *Private,
- IN EFI_INPUT_KEY Key
- )
-{
- Private->WinNtThunk->EnterCriticalSection (&Private->QCriticalSection);
-
- if (Private->Queue.Count == MAX_Q) {
- Private->WinNtThunk->LeaveCriticalSection (&Private->QCriticalSection);
- return EFI_NOT_READY;
- }
-
- Private->Queue.Rear = (Private->Queue.Rear + 1) % MAX_Q;
- Private->Queue.Q[Private->Queue.Rear] = Key;
- Private->Queue.Count++;
-
- Private->WinNtThunk->LeaveCriticalSection (&Private->QCriticalSection);
- return EFI_SUCCESS;
-}
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
- @param Key TODO: add argument description
-
- @retval EFI_NOT_READY TODO: Add description for return value
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-GopPrivateDeleteQ (
- IN GOP_PRIVATE_DATA *Private,
- OUT EFI_INPUT_KEY *Key
- )
-{
- Private->WinNtThunk->EnterCriticalSection (&Private->QCriticalSection);
-
- if (Private->Queue.Count == 0) {
- Private->WinNtThunk->LeaveCriticalSection (&Private->QCriticalSection);
- return EFI_NOT_READY;
- }
-
- *Key = Private->Queue.Q[Private->Queue.Front];
- Private->Queue.Front = (Private->Queue.Front + 1) % MAX_Q;
- Private->Queue.Count--;
-
- Private->WinNtThunk->LeaveCriticalSection (&Private->QCriticalSection);
- return EFI_SUCCESS;
-}
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
-
- @retval EFI_NOT_READY TODO: Add description for return value
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-GopPrivateCheckQ (
- IN GOP_PRIVATE_DATA *Private
- )
-{
- if (Private->Queue.Count == 0) {
- return EFI_NOT_READY;
- }
-
- return EFI_SUCCESS;
-}
-
-//
-// Simple Text In implementation.
-//
-
-
-/**
- TODO: Add function description
-
- @param This TODO: add argument description
- @param ExtendedVerification TODO: add argument description
-
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-EFIAPI
-WinNtGopSimpleTextInReset (
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
- IN BOOLEAN ExtendedVerification
- )
-{
- GOP_PRIVATE_DATA *Private;
- EFI_INPUT_KEY Key;
- EFI_TPL OldTpl;
-
- Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- //
- // A reset is draining the Queue
- //
- while (GopPrivateDeleteQ (Private, &Key) == EFI_SUCCESS)
- ;
-
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
- return EFI_SUCCESS;
-}
-
-
-/**
- TODO: Add function description
-
- @param This TODO: add argument description
- @param Key TODO: add argument description
-
- @return TODO: add return values
-
-**/
-STATIC
-EFI_STATUS
-EFIAPI
-WinNtGopSimpleTextInReadKeyStroke (
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
- OUT EFI_INPUT_KEY *Key
- )
-{
- GOP_PRIVATE_DATA *Private;
- EFI_STATUS Status;
- EFI_TPL OldTpl;
-
- Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- Status = GopPrivateCheckQ (Private);
- if (!EFI_ERROR (Status)) {
- //
- // If a Key press exists try and read it.
- //
- Status = GopPrivateDeleteQ (Private, Key);
- }
-
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
-
- return Status;
-}
-
-
-/**
- TODO: Add function description
-
- @param Event TODO: add argument description
- @param Context TODO: add argument description
-
- @return TODO: add return values
-
-**/
-STATIC
-VOID
-EFIAPI
-WinNtGopSimpleTextInWaitForKey (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- GOP_PRIVATE_DATA *Private;
- EFI_STATUS Status;
- EFI_TPL OldTpl;
-
- Private = (GOP_PRIVATE_DATA *) Context;
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- Status = GopPrivateCheckQ (Private);
- if (!EFI_ERROR (Status)) {
- //
- // If a there is a key in the queue signal our event.
- //
- gBS->SignalEvent (Event);
- } else {
- //
- // We need to sleep or NT will schedule this thread with such high
- // priority that WinProc thread will never run and we will not see
- // keyboard input. This Sleep makes the syste run 10x faster, so don't
- // remove it.
- //
- Private->WinNtThunk->Sleep (1);
- }
-
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
-}
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
-
- @return TODO: add return values
-
-**/
-EFI_STATUS
-WinNtGopInitializeSimpleTextInForWindow (
- IN GOP_PRIVATE_DATA *Private
- )
-{
- EFI_STATUS Status;
-
- GopPrivateCreateQ (Private);
-
- //
- // Initialize Simple Text In protoocol
- //
- Private->SimpleTextIn.Reset = WinNtGopSimpleTextInReset;
- Private->SimpleTextIn.ReadKeyStroke = WinNtGopSimpleTextInReadKeyStroke;
-
- Status = gBS->CreateEvent (
- EVT_NOTIFY_WAIT,
- TPL_NOTIFY,
- WinNtGopSimpleTextInWaitForKey,
- Private,
- &Private->SimpleTextIn.WaitForKey
- );
-
- return Status;
-}
-
-
-/**
- TODO: Add function description
-
- @param Private TODO: add argument description
-
- @retval EFI_SUCCESS TODO: Add description for return value
-
-**/
-EFI_STATUS
-WinNtGopDestroySimpleTextInForWindow (
- IN GOP_PRIVATE_DATA *Private
- )
-{
- GopPrivateDestroyQ (Private);
- return EFI_SUCCESS;
-}
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