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Parse full EDID data to get all video resolutions supported by monitors.

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Signed-off-by: Li Elvin <elvin.li@intel.com>
Reviewed-by: Ni Ruiyu <ruiyu.ni@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14073 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
li-elvin
2013-01-22 06:18:50 +00:00
parent ed729be159
commit 2e0910acd5
2 changed files with 85 additions and 40 deletions
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25
IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/VesaBiosExtensions.h
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@@ -1,6 +1,6 @@
/** @file
Copyright (c) 2006 - 2010, 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
@@ -168,6 +168,21 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#define VESA_BIOS_EXTENSIONS_EDID_BLOCK_SIZE 128
#define VESA_BIOS_EXTENSIONS_EDID_ESTABLISHED_TIMING_MAX_NUMBER 17
//
// Established Timings: 24 possible resolutions
// Standard Timings: 8 possible resolutions
// Detailed Timings: 4 possible resolutions
//
#define VESA_BIOS_EXTENSIONS_EDID_TIMING_MAX_NUMBER 36
//
// Timing data size for Established Timings, Standard Timings and Detailed Timings
//
#define VESA_BIOS_EXTENSIONS_ESTABLISHED_TIMING_SIZE 3
#define VESA_BIOS_EXTENSIONS_STANDARD_TIMING_SIZE 16
#define VESA_BIOS_EXTENSIONS_DETAILED_TIMING_EACH_DESCRIPTOR_SIZE 18
#define VESA_BIOS_EXTENSIONS_DETAILED_TIMING_DESCRIPTOR_MAX_SIZE 72
typedef struct {
UINT16 HorizontalResolution;
UINT16 VerticalResolution;
@@ -176,7 +191,7 @@ typedef struct {
typedef struct {
UINT32 ValidNumber;
UINT32 Key[VESA_BIOS_EXTENSIONS_EDID_ESTABLISHED_TIMING_MAX_NUMBER];
UINT32 Key[VESA_BIOS_EXTENSIONS_EDID_TIMING_MAX_NUMBER];
} VESA_BIOS_EXTENSIONS_VALID_EDID_TIMING;
typedef struct {
@@ -203,9 +218,9 @@ typedef struct {
UINT8 BlueY; //Blue-y Bits 9 - 2
UINT8 WhiteX; //White-x Bits 9 - 2
UINT8 WhiteY; //White-x Bits 9 - 2
UINT8 EstablishedTimings[3];
UINT8 StandardTimingIdentification[16];
UINT8 DetailedTimingDescriptions[72];
UINT8 EstablishedTimings[VESA_BIOS_EXTENSIONS_ESTABLISHED_TIMING_SIZE];
UINT8 StandardTimingIdentification[VESA_BIOS_EXTENSIONS_STANDARD_TIMING_SIZE];
UINT8 DetailedTimingDescriptions[VESA_BIOS_EXTENSIONS_DETAILED_TIMING_DESCRIPTOR_MAX_SIZE];
UINT8 ExtensionFlag; //Number of (optional) 128-byte EDID extension blocks to follow
UINT8 Checksum;
} VESA_BIOS_EXTENSIONS_EDID_DATA_BLOCK;