Revision: 18765
http://sourceforge.net/p/edk2/code/18765
Author: lgao4
Date: 2015-11-11 02:16:35 +0000 (Wed, 11 Nov 2015)
Log Message:
-----------
MdePkg: Add more DataBits support to Port80 output
The BasePostCodeLibPort80 instance just prints UINT8 to IoPort 80. Some boards
may support 16bit or 32bit. To support them, new PCD PcdPort80DataWidth is
introduced to specify the width of data bits to Port80.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <[email protected]>
Reviewed-by: Star Zeng <[email protected]>
Reviewed-by: Jiewen Yao <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf
trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/PostCode.c
trunk/edk2/MdePkg/MdePkg.dec
trunk/edk2/MdePkg/MdePkg.uni
Modified:
trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf
===================================================================
--- trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf
2015-11-10 10:02:24 UTC (rev 18764)
+++ trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf
2015-11-11 02:16:35 UTC (rev 18765)
@@ -3,7 +3,7 @@
#
# Post Code Library that writes post code values to I/O port 0x80.
#
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2015, 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
@@ -40,8 +40,9 @@
[LibraryClasses]
IoLib
PcdLib
+ DebugLib
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPostCodePropertyMask ## CONSUMES
-
+ gEfiMdePkgTokenSpaceGuid.PcdPort80DataWidth ## CONSUMES
Modified: trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/PostCode.c
===================================================================
--- trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/PostCode.c 2015-11-10
10:02:24 UTC (rev 18764)
+++ trunk/edk2/MdePkg/Library/BasePostCodeLibPort80/PostCode.c 2015-11-11
02:16:35 UTC (rev 18765)
@@ -1,7 +1,7 @@
/** @file
Post Code Library instance that writes post code values to I/O port 0x80.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2015, 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
@@ -17,6 +17,7 @@
#include <Library/PostCodeLib.h>
#include <Library/PcdLib.h>
#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
/**
Sends an 32-bit value to a POST card.
@@ -42,7 +43,24 @@
IN UINT32 Value
)
{
- IoWrite8 (0x80, (UINT8)(Value));
+ switch (PcdGet8 (PcdPort80DataWidth)) {
+ case 8:
+ IoWrite8 (0x80, (UINT8)(Value));
+ break;
+ case 16:
+ IoWrite16 (0x80, (UINT16)(Value));
+ break;
+ case 32:
+ IoWrite32 (0x80, Value);
+ break;
+ default:
+ //
+ // Assert on the invalid data width
+ //
+ ASSERT (FALSE);
+ break;
+ }
+
return Value;
}
@@ -78,7 +96,7 @@
IN CONST CHAR8 *Description OPTIONAL
)
{
- IoWrite8 (0x80, (UINT8)(Value));
+ PostCode (Value);
return Value;
}
Modified: trunk/edk2/MdePkg/MdePkg.dec
===================================================================
--- trunk/edk2/MdePkg/MdePkg.dec 2015-11-10 10:02:24 UTC (rev 18764)
+++ trunk/edk2/MdePkg/MdePkg.dec 2015-11-11 02:16:35 UTC (rev 18765)
@@ -1938,6 +1938,11 @@
# @Expression 0x80000002 |
(gEfiMdePkgTokenSpaceGuid.PcdPostCodePropertyMask & 0xFC) == 0
gEfiMdePkgTokenSpaceGuid.PcdPostCodePropertyMask|0|UINT8|0x0000000b
+ ## The bit width of data to be written to Port80. The default value is 8.
+ # @Prompt Port80 Data Width
+ # @ValidList 0x80000001 | 8, 16, 32
+ gEfiMdePkgTokenSpaceGuid.PcdPort80DataWidth|8|UINT8|0x0000002d
+
## This value is used to configure X86 Processor FSB clock.
# @Prompt FSB Clock.
gEfiMdePkgTokenSpaceGuid.PcdFSBClock|200000000|UINT32|0x0000000c
Modified: trunk/edk2/MdePkg/MdePkg.uni
===================================================================
--- trunk/edk2/MdePkg/MdePkg.uni 2015-11-10 10:02:24 UTC (rev 18764)
+++ trunk/edk2/MdePkg/MdePkg.uni 2015-11-11 02:16:35 UTC (rev 18765)
@@ -790,4 +790,10 @@
+++ \ No newline at end of file
------------------------------------------------------------------------------
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