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]> --- .../BasePostCodeLibPort80.inf | 5 +++-- MdePkg/Library/BasePostCodeLibPort80/PostCode.c | 24 ++++++++++++++++++--- MdePkg/MdePkg.dec | 5 +++++ MdePkg/MdePkg.uni | Bin 69604 -> 70116 bytes 4 files changed, 29 insertions(+), 5 deletions(-) diff --git a/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf b/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf index e2f0be5..ebe1158 100644 --- a/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf +++ b/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf @@ -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 diff --git a/MdePkg/Library/BasePostCodeLibPort80/PostCode.c b/MdePkg/Library/BasePostCodeLibPort80/PostCode.c index 925c740..f1fdbab 100644 --- a/MdePkg/Library/BasePostCodeLibPort80/PostCode.c +++ b/MdePkg/Library/BasePostCodeLibPort80/PostCode.c @@ -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 @@ PostCode ( 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 @@ PostCodeWithDescription ( IN CONST CHAR8 *Description OPTIONAL ) { - IoWrite8 (0x80, (UINT8)(Value)); + PostCode (Value); return Value; } diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index 337059a..7ab0cbb 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -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 diff --git a/MdePkg/MdePkg.uni b/MdePkg/MdePkg.uni index 38211344e0ae01e984d5d9b916e42f4f8b4c1c66..5a5126213e4f72ea8c47772aebf5e31e007bbc46 100644 GIT binary patch delta 257 zcmaDdpXJG7mWC~iPxvRx?GKO*V8~}EVklv-U@%~CVMqkB5*fl7G8s~Utc=NqV&?J) zc?Gx%1tc|&YvM(*nlSl%is|GHt2pYDfaaAjC@_@6%muRZ8Pb4c3e-jgpnN`%pTv*~ zR#ybpQ3B-U0r?O)WS8mzMMD@ez^YS#WE#+%QidF`EoDG<4v+^jDU+d?L4g<OIgkb= J23`g(1^^oLG@}3j delta 11 ScmaE|nB~cQmWC~iPxt{N6a_l~ -- 1.9.5.msysgit.0 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
