From 2d9a7522a34940a4fe9fefab6508055e0f1f1db9 Mon Sep 17 00:00:00 2001
From: qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 9 Oct 2007 03:11:08 +0000
Subject: [PATCH] Update English Module to selectively install Unicode
 Collation and Unicode Collation 2 protocol.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4049 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../EnglishDxe/EnglishDxe.inf                 |  6 ++
 .../EnglishDxe/UnicodeCollationEng.c          | 72 ++++++++++++++++---
 .../EnglishDxe/UnicodeCollationEng.h          |  1 +
 3 files changed, 68 insertions(+), 11 deletions(-)

diff --git a/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf b/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
index 845822557c..8f33c3b47d 100644
--- a/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
+++ b/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
@@ -38,13 +38,19 @@
 
 [Packages]
   MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
 
 [LibraryClasses]
   UefiBootServicesTableLib
   UefiDriverEntryPoint
   DebugLib
+  PcdLib
 
+[FeaturePcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdUnicodeCollationSupport
+  gEfiMdeModulePkgTokenSpaceGuid.PcdUnicodeCollation2Support
 
 [Protocols]
   gEfiUnicodeCollationProtocolGuid              # PROTOCOL ALWAYS_PRODUCED
+  gEfiUnicodeCollation2ProtocolGuid             # PROTOCOL ALWAYS_PRODUCED
 
diff --git a/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.c b/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.c
index 5b543e939e..555ad90016 100644
--- a/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.c
+++ b/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.c
@@ -60,9 +60,12 @@ CHAR8 mOtherChars[] = {
   '\0'
 };
 
-EFI_HANDLE  mHandle = NULL;
+STATIC EFI_HANDLE  mHandle = NULL;
 
-EFI_UNICODE_COLLATION_PROTOCOL  UnicodeEng = {
+//
+// EFI Unicode Collation Protocol supporting ISO 639-2 language code
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_COLLATION_PROTOCOL  UnicodeEng = {
   EngStriColl,
   EngMetaiMatch,
   EngStrLwr,
@@ -73,9 +76,23 @@ EFI_UNICODE_COLLATION_PROTOCOL  UnicodeEng = {
 };
 
 //
+// EFI Unicode Collation2 Protocol supporting RFC 3066 language code
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_COLLATION_PROTOCOL  Unicode2Eng = {
+  EngStriColl,
+  EngMetaiMatch,
+  EngStrLwr,
+  EngStrUpr,
+  EngFatToStr,
+  EngStrToFat,
+  "en"
+};
+
 //
+// Driver entry point.
 //
 EFI_STATUS
+EFIAPI
 InitializeUnicodeCollationEng (
   IN EFI_HANDLE       ImageHandle,
   IN EFI_SYSTEM_TABLE *SystemTable
@@ -99,6 +116,7 @@ Returns:
 
 --*/
 {
+  EFI_STATUS  Status;
   UINTN       Index;
   UINTN       Index2;
 
@@ -125,15 +143,47 @@ Returns:
     Index2 = mOtherChars[Index];
     mEngInfoMap[Index2] |= CHAR_FAT_VALID;
   }
-  //
-  // Create a handle for the device
-  //
-  return gBS->InstallProtocolInterface (
-                &mHandle,
-                &gEfiUnicodeCollationProtocolGuid,
-                EFI_NATIVE_INTERFACE,
-                &UnicodeEng
-                );
+
+  if (FeaturePcdGet (PcdUnicodeCollation2Support)) {
+    if (FeaturePcdGet (PcdUnicodeCollationSupport)) {
+      Status = gBS->InstallMultipleProtocolInterfaces (
+                      &mHandle,
+                      &gEfiUnicodeCollationProtocolGuid,
+                      &UnicodeEng,
+                      &gEfiUnicodeCollation2ProtocolGuid,
+                      &Unicode2Eng,
+                      NULL
+                      );
+      ASSERT_EFI_ERROR (Status);
+    } else {
+      Status = gBS->InstallMultipleProtocolInterfaces (
+                      &mHandle,
+                      &gEfiUnicodeCollation2ProtocolGuid,
+                      &Unicode2Eng,
+                      NULL
+                      );
+      ASSERT_EFI_ERROR (Status);
+    }
+  } else {
+    if (FeaturePcdGet (PcdUnicodeCollationSupport)) {
+      Status = gBS->InstallMultipleProtocolInterfaces (
+                      &mHandle,
+                      &gEfiUnicodeCollationProtocolGuid,
+                      &UnicodeEng,
+                      NULL
+                      );
+      ASSERT_EFI_ERROR (Status);
+    } else {
+      //
+      // This module must support to produce at least one of Unicode Collation Protocol
+      // and Unicode Collation 2 Protocol.
+      //
+      ASSERT (FALSE);
+      Status = EFI_UNSUPPORTED;
+    }
+  }
+
+  return Status;
 }
 
 INTN
diff --git a/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.h b/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.h
index cdab4090c7..668652871a 100644
--- a/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.h
+++ b/MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/UnicodeCollationEng.h
@@ -34,6 +34,7 @@ Revision History
 #include <Library/DebugLib.h>
 #include <Library/UefiDriverEntryPoint.h>
 #include <Library/UefiBootServicesTableLib.h>
+#include <Library/PcdLib.h>
 
 //
 // Defines
-- 
2.39.2