From 4ff492c312d1b3a69116f7d15e564170f481891d Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 16 May 2011 01:51:53 +0000
Subject: Update USB keyboard driver to return scan code for Pause key.

Signed-off-by: vanjeff
Reviewed-by: erictian
Reviewed-by: niruiyu

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11656 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

(limited to 'MdeModulePkg/Bus/Usb')

diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c b/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
index a205da09a3..a11333ccf5 100644
--- a/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
+++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
@@ -299,6 +299,10 @@ UINT8 ModifierValueToEfiScanCodeConvertionTable[] = {
   SCAN_F10,        // EFI_FUNCTION_KEY_TEN_MODIFIER
   SCAN_F11,        // EFI_FUNCTION_KEY_ELEVEN_MODIFIER
   SCAN_F12,        // EFI_FUNCTION_KEY_TWELVE_MODIFIER
+  SCAN_NULL,       // EFI_PRINT_MODIFIER
+  SCAN_NULL,       // EFI_SYS_REQUEST_MODIFIER
+  SCAN_NULL,       // EFI_SCROLL_LOCK_MODIFIER
+  SCAN_PAUSE       // EFI_PAUSE_MODIFIER
 };
 
 /**
@@ -1476,17 +1480,6 @@ USBParseKey (
       continue;
       break;
 
-    //
-    // PrintScreen, Pause/Break could not be retrieved via SimpleTextInEx protocol
-    //
-    case EFI_PAUSE_MODIFIER:
-    case EFI_BREAK_MODIFIER:
-      //
-      // Fall through
-      //
-      continue;
-      break;
-
     default:
       break;
     }
@@ -1569,7 +1562,7 @@ UsbKeyCodeToEfiInputKey (
   //
   // Make sure modifier of Key Descriptor is in the valid range according to UEFI spec.
   //
-  if (KeyDescriptor->Modifier > EFI_FUNCTION_KEY_TWELVE_MODIFIER) {
+  if (KeyDescriptor->Modifier > (sizeof (ModifierValueToEfiScanCodeConvertionTable) / sizeof (UINT8))) {
     return EFI_DEVICE_ERROR;
   }
 
-- 
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