From a0973dcb7730fffd66dfd9f25e4be2ea399a00c5 Mon Sep 17 00:00:00 2001
From: Dandan Bi <dandan.bi@intel.com>
Date: Mon, 3 Aug 2015 09:44:04 +0000
Subject: [PATCH] MdeModulePkg:Fix the issue FindQuestionFromProgress in
 SetupBrowserDxe is broken

If the storage of the question is EFI_HII_VARSTORE_BUFFER/EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER,
in SetupBrowserDxe the configuration stings contain uppercase,but HiiDataBaseDxe generates the
ConfigResp string in lowercase,they mismatch,so FindQuestionFromProgress function is broken.
Now convert the configuration string in SetupBrowserDxe to lowercase to fix this issue.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18143 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c |  1 +
 MdeModulePkg/Universal/SetupBrowserDxe/Setup.h    | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c b/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c
index 953e3a5071..8e8607d4c0 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/IfrParse.c
@@ -715,6 +715,7 @@ InitializeRequestElement (
                Question->VarStoreInfo.VarOffset,
                Question->StorageWidth
                );
+    HiiToLower(RequestElement);
     Question->BlockName = AllocateCopyPool ((StrLen + 1) * sizeof (CHAR16), RequestElement);
   } else {
     StrLen = UnicodeSPrint (RequestElement, 30 * sizeof (CHAR16), L"&%s", Question->VariableName);
diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Setup.h b/MdeModulePkg/Universal/SetupBrowserDxe/Setup.h
index cfd81334d9..1238197535 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Setup.h
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Setup.h
@@ -1849,4 +1849,17 @@ ReconnectController (
   IN EFI_HANDLE   DriverHandle
   );
 
+/**
+  Converts the unicode character of the string from uppercase to lowercase.
+  This is a internal function.
+
+  @param ConfigString  String to be converted
+
+**/
+VOID
+EFIAPI
+HiiToLower (
+  IN EFI_STRING  ConfigString
+  );
+
 #endif