Adding support for BeagleBoard.

ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers.
EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell.
BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine).


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524

EmbeddedPkg/Include/Library/EblAddExternalCommandLib.h

@@ -0,0 +1,122 @@
+/** @file
+  Include flie for basic command line parser for EBL (Embedded Boot Loader)
+
+  Copyright (c) 2007, Intel Corporation<BR>
+  Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>
+
+  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.
+
+**/
+
+#ifndef __EBL_ADD_EXTERNAL_COMMAND_LIB_H__
+#define __EBL_ADD_EXTERNAL_COMMAND_LIB_H__
+
+#include <PiDxe.h>
+#include <Protocol/EblAddCommand.h>
+
+
+EFI_STATUS
+EFIAPI
+EblAddExternalCommands (
+  IN const EBL_COMMAND_TABLE   *EntryArray,
+  IN UINTN                     ArrayCount
+  );
+
+/**
+
+  Return a keypress or optionally timeout if a timeout value was passed in.
+
+  An optional callback funciton is called evey second when waiting for a
+
+  timeout.
+
+
+
+  @param  Key           EFI Key information returned
+
+  @param  TimeoutInSec  Number of seconds to wait to timeout
+
+  @param  CallBack      Callback called every second during the timeout wait 
+
+
+
+  @return EFI_SUCCESS  Key was returned
+
+  @return EFI_TIMEOUT  If the TimoutInSec expired
+
+
+
+**/
+
+EFI_STATUS
+
+EFIAPI
+
+EblGetCharKey (
+
+  IN OUT EFI_INPUT_KEY            *Key,
+
+  IN     UINTN                    TimeoutInSec,
+
+  IN     EBL_GET_CHAR_CALL_BACK   CallBack   OPTIONAL
+
+  );
+
+
+
+
+
+/**
+
+  This routine is used prevent command output data from scrolling off the end
+
+  of the screen. The global gPageBreak is used to turn on or off this feature.
+
+  If the CurrentRow is near the end of the screen pause and print out a prompt
+
+  If the use hits Q to quit return TRUE else for any other key return FALSE.
+
+  PrefixNewline is used to figure out if a newline is needed before the prompt
+
+  string. This depends on the last print done before calling this function.
+
+  CurrentRow is updated by one on a call or set back to zero if a prompt is 
+
+  needed.
+
+
+
+  @param  CurrentRow  Used to figure out if its the end of the page and updated
+
+  @param  PrefixNewline  Did previous print issue a newline
+
+
+
+  @return TRUE if Q was hit to quit, FALSE in all other cases.
+
+
+
+**/
+
+BOOLEAN
+
+EFIAPI
+
+EblAnyKeyToContinueQtoQuit (
+
+  IN  UINTN   *CurrentRow,
+
+  IN  BOOLEAN PrefixNewline
+
+  );
+
+
+
+#endif
+