ArmPlatformPkg/Bds: Catch the key pressed to escape the count doan

Catch the pressed key used to not start the default boot device.
Otherwise this key would appear in the menu user input.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11990 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/ArmPlatformPkg/Bds/Bds.c b/ArmPlatformPkg/Bds/Bds.c
index a10c90a815866a1ea96c31ecbdaede410d60f885..11116ede96ee73719b6c0843d97d055579fa7c10 100644 (file)
--- a/ArmPlatformPkg/Bds/Bds.c
+++ b/ArmPlatformPkg/Bds/Bds.c
@@ -269,6 +269,7 @@ StartDefaultBootOnTimeout (
   UINTN               Index;
   CHAR16              BootVariableName[9];
   EFI_STATUS           Status;
+  EFI_INPUT_KEY   Key;
 
   Size = sizeof(UINT16);
   Timeout = (UINT16)PcdGet16 (PcdPlatformBootTimeOut);
@@ -293,6 +294,10 @@ StartDefaultBootOnTimeout (
           Timeout--;
         }
       }
+      // Discard key in the buffer
+      do {
+       Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+      } while(!EFI_ERROR(Status));
       gBS->CloseEvent (WaitList[0]);
       Print(L"\n\r");
     }