From 29874a8c6015deff95e90e64fb9321bdc7b32a99 Mon Sep 17 00:00:00 2001
From: jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 28 Jan 2013 16:54:55 +0000
Subject: QemuFwCfgLib: Add QemuFwCfgWriteBytes() function

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14109 6f19259b-4bc3-4df7-8a09-765794883524
---
 OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S   | 22 +++++++++++++++++++++-
 OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.asm | 24 +++++++++++++++++++++++-
 2 files changed, 44 insertions(+), 2 deletions(-)

(limited to 'OvmfPkg/Library/QemuFwCfgLib/Ia32')

diff --git a/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S b/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S
index a32b2c60c4..c2735d2c65 100644
--- a/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S
+++ b/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S
@@ -1,6 +1,6 @@
 #------------------------------------------------------------------------------
 #
-# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution.  The full text of the license may be found at
@@ -30,3 +30,23 @@ rep insb
     popl    %edi
     ret
 
+
+#------------------------------------------------------------------------------
+#  VOID
+#  EFIAPI
+#  IoWriteFifo8 (
+#    IN UINTN                  Port,
+#    IN UINTN                  Size,
+#    IN VOID                   *Buffer
+#    );
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(IoWriteFifo8)
+ASM_PFX(IoWriteFifo8):
+    movw    4(%esp), %dx
+    movl    8(%esp), %ecx
+    pushl   %esi
+    movl    16(%esp), %esi
+rep outsb
+    popl    %esi
+    ret
+
diff --git a/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.asm b/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.asm
index 248d52237e..f7d65c49af 100644
--- a/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.asm
+++ b/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.asm
@@ -1,6 +1,6 @@
 ;------------------------------------------------------------------------------
 ;
-; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
 ; This program and the accompanying materials
 ; are licensed and made available under the terms and conditions of the BSD License
 ; which accompanies this distribution.  The full text of the license may be found at
@@ -36,5 +36,27 @@ rep insb
 
 IoReadFifo8 ENDP
 
+
+;------------------------------------------------------------------------------
+;  VOID
+;  EFIAPI
+;  IoWriteFifo8 (
+;    IN UINTN                  Port,
+;    IN UINTN                  Size,
+;    IN VOID                   *Buffer
+;    );
+;------------------------------------------------------------------------------
+IoWriteFifo8 PROC
+
+    mov     dx, [esp + 4]
+    mov     ecx, [esp + 8]
+    push    esi
+    mov     esi, [esp + 16]
+rep outsb
+    pop     esi
+    ret
+
+IoWriteFifo8 ENDP
+
     END
 
-- 
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