Unix version of EFI emulator

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2182 6f19259b-4bc3-4df7-8a09-765794883524

EdkUnixPkg/Dxe/UnixThunk/Bus/Console/ConsoleIn.c

@@ -0,0 +1,246 @@
+/*++
+
+Copyright (c) 2004, 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:
+
+  ConsoleIn.c
+
+Abstract:
+
+  Console based on Win32 APIs. 
+
+  This file attaches a SimpleTextIn protocol to a previously open window.
+  
+  The constructor for this protocol depends on an open window. Currently
+  the SimpleTextOut protocol creates a window when it's constructor is called.
+  Thus this code must run after the constructor for the SimpleTextOut 
+  protocol
+  
+--*/
+
+#include "Console.h"
+#include <sys/poll.h>
+
+//
+// Private worker functions
+//
+STATIC
+EFI_STATUS
+UnixSimpleTextInCheckKey (
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA  *Private
+  );
+
+EFI_STATUS
+EFIAPI
+UnixSimpleTextInReset (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  IN BOOLEAN                              ExtendedVerification
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This                  - TODO: add argument description
+  ExtendedVerification  - TODO: add argument description
+
+Returns:
+
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+
+  Private = UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS (This);
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+UnixConvertInputRecordToEfiKey (
+  IN  char c,
+  OUT EFI_INPUT_KEY   *Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  InputRecord - TODO: add argument description
+  Key         - TODO: add argument description
+
+Returns:
+
+  EFI_NOT_READY - TODO: Add description for return value
+  EFI_NOT_READY - TODO: Add description for return value
+  EFI_NOT_READY - TODO: Add description for return value
+  EFI_SUCCESS - TODO: Add description for return value
+
+--*/
+{
+  Key->ScanCode     = 0;
+  if (c == '\n')
+    c = '\r';
+  Key->UnicodeChar  = c;
+  return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
+EFIAPI
+UnixSimpleTextInReadKeyStroke (
+  IN EFI_SIMPLE_TEXT_IN_PROTOCOL          *This,
+  OUT EFI_INPUT_KEY                       *Key
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  This  - TODO: add argument description
+  Key   - TODO: add argument description
+
+Returns:
+
+  EFI_DEVICE_ERROR - TODO: Add description for return value
+  EFI_NOT_READY - TODO: Add description for return value
+
+--*/
+{
+  EFI_STATUS                      Status;
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+  char c;
+
+  Private = UNIX_SIMPLE_TEXT_IN_PRIVATE_DATA_FROM_THIS (This);
+
+  Status  = UnixSimpleTextInCheckKey (Private);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  if (Private->UnixThunk->Read (0, &c, 1) != 1)
+    return EFI_NOT_READY;
+  Status = UnixConvertInputRecordToEfiKey (c, Key);
+
+  return Status;
+}
+
+STATIC
+VOID
+EFIAPI
+UnixSimpleTextInWaitForKey (
+  IN EFI_EVENT          Event,
+  IN VOID               *Context
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Event   - TODO: add argument description
+  Context - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private;
+  EFI_STATUS                      Status;
+
+  Private = (UNIX_SIMPLE_TEXT_PRIVATE_DATA *) Context;
+  Status  = UnixSimpleTextInCheckKey (Private);
+  if (!EFI_ERROR (Status)) {
+    gBS->SignalEvent (Event);
+  }
+}
+
+STATIC
+EFI_STATUS
+UnixSimpleTextInCheckKey (
+  UNIX_SIMPLE_TEXT_PRIVATE_DATA   *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  struct pollfd pfd;
+
+  pfd.fd = 0;
+  pfd.events = POLLIN;
+  if (Private->UnixThunk->Poll (&pfd, 1, 0) <= 0) {
+    return EFI_NOT_READY;
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+UnixSimpleTextInAttachToWindow (
+  IN  UNIX_SIMPLE_TEXT_PRIVATE_DATA *Private
+  )
+/*++
+
+Routine Description:
+
+  TODO: Add function description
+
+Arguments:
+
+  Private - TODO: add argument description
+
+Returns:
+
+  TODO: add return values
+
+--*/
+{
+  EFI_STATUS  Status;
+
+  Private->SimpleTextIn.Reset         = UnixSimpleTextInReset;
+  Private->SimpleTextIn.ReadKeyStroke = UnixSimpleTextInReadKeyStroke;
+
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_NOTIFY_WAIT,
+                  EFI_TPL_NOTIFY,
+                  UnixSimpleTextInWaitForKey,
+                  Private,
+                  &Private->SimpleTextIn.WaitForKey
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}