From 1f771698b2abd8995017bb54e8ba3ec065a9bba1 Mon Sep 17 00:00:00 2001
From: qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Thu, 27 Sep 2007 12:00:18 +0000
Subject: translate Ctrl + alpha  to control value for simple text input
 protocol

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3952 6f19259b-4bc3-4df7-8a09-765794883524
---
 IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c')

diff --git a/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c b/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
index 4ade1e340c..c4f1ee1780 100644
--- a/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
+++ b/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
@@ -1622,6 +1622,16 @@ Returns:
           ConsoleIn->Key.UnicodeChar = ConvertKeyboardScanCodeToEfiKey[Index].UnicodeChar;
         }
       }
+      //
+      // Translate the CTRL-Alpha characters to their corresponding control value (ctrl-a = 0x0001 through ctrl-Z = 0x001A)
+      //
+      if (ConsoleIn->Ctrled) {
+        if (ConsoleIn->Key.UnicodeChar >= 'a' && ConsoleIn->Key.UnicodeChar <= 'z') {
+          ConsoleIn->Key.UnicodeChar = (UINT16) (ConsoleIn->Key.UnicodeChar - 'a' + 1);
+        } else if (ConsoleIn->Key.UnicodeChar >= 'A' && ConsoleIn->Key.UnicodeChar <= 'Z') {
+          ConsoleIn->Key.UnicodeChar = (UINT16) (ConsoleIn->Key.UnicodeChar - 'A' + 1);
+        }
+      }
 
       break;
     }
-- 
cgit v1.2.3