[PATCH] CorebootPayloadPkg: Add "Down" key to Boot Manager Menu

[gdong1 <guo.dong@intel.com>]

Also add Down key to Boot Manager Menu since some serial
terminals don't support F2 key.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Dong <guo.dong@intel.com>
Reviewed-by: Maurice Ma <maurice.ma@intel.com>
---
 .../Library/PlatformBootManagerLib/PlatformBootManager.c    | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/CorebootPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c b/CorebootPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
index a31384a..c16a6b3 100644
--- a/CorebootPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
+++ b/CorebootPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
@@ -181,6 +181,7 @@ PlatformBootManagerBeforeConsole (
 {
   EFI_INPUT_KEY                Enter;
   EFI_INPUT_KEY                F2;
+  EFI_INPUT_KEY                Down;
   EFI_BOOT_MANAGER_LOAD_OPTION BootOption;
 
   PlatformConsoleInit ();
@@ -201,6 +202,14 @@ PlatformBootManagerBeforeConsole (
   EfiBootManagerAddKeyOptionVariable (NULL, (UINT16) BootOption.OptionNumber, 0, &F2, NULL);
 
   //
+  // Also add Down key to Boot Manager Menu since some serial terminals don't support F2 key.
+  //
+  Down.ScanCode    = SCAN_DOWN;
+  Down.UnicodeChar = CHAR_NULL;
+  EfiBootManagerGetBootManagerMenu (&BootOption);
+  EfiBootManagerAddKeyOptionVariable (NULL, (UINT16) BootOption.OptionNumber, 0, &Down, NULL);
+
+  //
   // Register UEFI Shell
   //
   PlatformRegisterFvBootOption (PcdGetPtr (PcdShellFile), L"UEFI Shell", LOAD_OPTION_ACTIVE);
@@ -239,8 +248,8 @@ PlatformBootManagerAfterConsole (
 
   Print (
     L"\n"
-    L"F2      to enter Boot Manager Menu.\n"
-    L"ENTER   to boot directly.\n"
+    L"F2 or Down      to enter Boot Manager Menu.\n"
+    L"ENTER           to boot directly.\n"
     L"\n"
   );
 
-- 
2.7.0.windows.1