333 lines
7.9 KiB
C
333 lines
7.9 KiB
C
/*++
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Copyright (c) 2006 - 2010 Intel Corporation. All rights reserved
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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EDID.h
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Abstract:
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EDID data structure definitions
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Revision History
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--*/
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//
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// Intel Controller Driver
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//
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#ifndef _EDID_H_
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#define _EDID_H_
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//#include "Tiano.h"
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#include <Uefi.h>
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//
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// Driver Consumed Protocol Prototypes
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//
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#include <Protocol/DevicePath.h>
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#include <Protocol/PciIo.h>
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#include <Protocol/DriverBinding.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/ComponentName2.h>
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#include <Protocol/GraphicsOutput.h>
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#include <Protocol/UgaDraw.h>
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//#include <Protocol/VgaMiniPort.h>
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//#include <Protocol/Legacy8259.h>
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#include <Protocol/EdidActive.h>
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#include <Protocol/EdidDiscovered.h>
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#include <Protocol/DevicePath.h>
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#include <Library/UefiLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <IndustryStandard/Pci.h>
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#define EDID_HEADER_SIGNATURE 0x00FFFFFFFFFFFF00ull
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#define SUPPORTED_EDID_VERSION 1
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#define SUPPORTED_EDID_REVISION 3
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#define PREFERRED_TIMING_MODE 0x02
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//
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// DETAILED_TIMING_DESC data structure
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//
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typedef struct {
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UINT8 LSB;
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UINT8 MSB;
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} PIXEL_CLOCK;
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typedef struct {
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UINT8 Tbp : 4;
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UINT8 Ta : 4;
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} TA_TBP;
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typedef struct {
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UINT8 Vspw : 2;
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UINT8 Tvfp : 2;
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UINT8 Hspw : 2;
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UINT8 Thfp : 2;
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} THFP_HSPW_TVFP_VSPW;
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typedef struct {
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PIXEL_CLOCK PixelClock;
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UINT8 Tha;
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UINT8 Thbp;
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TA_TBP Tha_Thbp;
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UINT8 Tva;
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UINT8 Tvbp;
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TA_TBP Tva_Tvbp;
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UINT8 Thfp;
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UINT8 Thspw;
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TA_TBP Tvfp_Tvspw;
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THFP_HSPW_TVFP_VSPW Thfp_Thspw_Tvfp_Tvspw;
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UINT8 HorizontalSize;
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UINT8 VerticalSize;
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TA_TBP Hori_VerSize;
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UINT8 HorizontalBorder;
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UINT8 VerticalBorder;
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UINT8 Flags;
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} DETAILED_TIMING_DESC;
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//
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// Monitor Descriptor Block
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//
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typedef union {
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UINT8 DescData[13];
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struct {
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UINT8 ThspwMin;
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UINT8 ThspwMax;
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UINT8 ThbpMin;
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UINT8 ThbpMax;
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UINT8 TvspwMin;
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UINT8 TvspwMax;
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UINT8 TvbpMin;
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UINT8 TvbpMax;
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UINT8 ThpMin;
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UINT8 ThpMax;
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UINT8 TvpMin;
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UINT8 TvpMax;
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UINT8 Revision;
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} AlternateTiming;
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} DESC_DATA_BLOCK;
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typedef struct {
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UINT16 Flag1;
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UINT8 Flag2;
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UINT8 DataTypeTag;
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UINT8 Flag3;
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DESC_DATA_BLOCK DescData;
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} MONITOR_DESC_BLOCK;
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//
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// EDID block
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//
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typedef struct {
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UINT64 EDIDHeader;
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UINT16 VendorName;
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UINT16 ProductCode;
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UINT32 SerialNumber;
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UINT8 ManufactureWeek;
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UINT8 ManufactureYear;
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UINT8 EDIDVersion;
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UINT8 EDIDRevision;
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UINT8 VideoInputDefinition;
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UINT8 MaxHorizontalSize;
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UINT8 MaxVerticalSize;
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UINT8 DisplayTransferChar;
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UINT8 FeatureSupport;
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UINT8 Red_GreenLowBits;
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UINT8 Blue_WhiteLowBits;
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UINT8 Red_x;
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UINT8 Red_y;
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UINT8 Green_x;
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UINT8 Green_y;
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UINT8 Blue_x;
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UINT8 Blue_y;
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UINT8 White_x;
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UINT8 White_y;
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UINT8 ET1;
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UINT8 ET2;
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UINT8 ET3;
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UINT16 STD1;
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UINT16 STD2;
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UINT16 STD3;
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UINT16 STD4;
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UINT16 STD5;
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UINT16 STD6;
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UINT16 STD7;
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UINT16 STD8;
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DETAILED_TIMING_DESC DTD1;
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MONITOR_DESC_BLOCK DTD2;
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MONITOR_DESC_BLOCK DTD3;
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MONITOR_DESC_BLOCK DTD4;
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UINT8 ExtensionFlag;
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UINT8 Checksum;
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} EDID_BLOCK;
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#define VBE_EDID_ESTABLISHED_TIMING_MAX_NUMBER 17
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typedef struct {
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UINT16 HorizontalResolution;
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UINT16 VerticalResolution;
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UINT16 RefreshRate;
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} EDID_TIMING;
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typedef struct {
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UINT32 ValidNumber;
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UINT32 Key[VBE_EDID_ESTABLISHED_TIMING_MAX_NUMBER];
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} VALID_EDID_TIMING;
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#define GMBUS0 0x5100
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#define GMBUS1 0x5104
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#define GMBUS2 0x5108
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#define GMBUS3 0x510C
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#define GMINUSE 0x8000
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#define VCLADDRESS 0xA0
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#define RETRY_TIMES 0x10000
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typedef union _EFI_GMBUS_CLOCK_PORT_REG {
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UINT32 uint32;
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struct {
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UINT32 PinPairSelect : 3;
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UINT32 RSVD1 : 4;
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UINT32 HoldTimeExtension : 1;
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UINT32 BusRateSelect : 3;
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UINT32 RSVD2 : 21;
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} Clock_Port;
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} EFI_GMBUS_CLOCK_PORT_REG;
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typedef union _EFI_GMBUS_COMMAND_REG {
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UINT32 uint32;
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struct {
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UINT32 SlaveDirect : 1;
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UINT32 SlaveAddr : 7;
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UINT32 SlaveIndex : 8;
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UINT32 TotalByte : 9;
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UINT32 BusCycle : 3;
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UINT32 RSVD : 1;
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UINT32 EnableTimeout : 1;
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UINT32 SWRdy : 1;
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UINT32 SWClrInt : 1;
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} Command;
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} EFI_GMBUS_COMMAND_REG;
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typedef union _EFI_GMBUS_STATUS_REG {
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UINT32 uint32;
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struct {
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UINT32 ByteCount : 9;
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UINT32 GActive : 1;
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UINT32 SlaveAckTimeoutErr : 1;
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UINT32 HardwareReady : 1;
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UINT32 Interrupt : 1;
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UINT32 SlaveStallTimeoutErr : 1;
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UINT32 HardwareWaitPhase : 1;
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UINT32 InUse : 1;
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UINT32 RSVD : 16;
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} Status;
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} EFI_GMBUS_STATUS_REG;
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EFI_STATUS
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ReadEDID (
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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OUT VOID **EDIDBlock,
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OUT UINT32 *EDIDSize
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)
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/*++
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Routine Description:
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Returns information about the geometry and configuration of
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the graphics controller's current frame buffer configuration
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Arguments:
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PciIo - PCI IO protocol
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EDIDBlock - Callee allocated buffer to return EDID table
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EDIDSize - Size of the returning buffer
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Returns:
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EFI_SUCCESS - Valid EDID table was returned
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EFI_OUT_OF_RESOURCES - Not enough resources
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EFI_UNSUPPORTED - Panel did not support DDC2/EDID
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EFI_NOT_READY - GMBus not ready
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--*/
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;
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EFI_STATUS
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ParseEDIDTable (
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IN EDID_BLOCK *EDIDTable,
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IN UINTN TableSize,
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OUT VALID_EDID_TIMING *ValidEdidTiming
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)
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/*++
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Routine Description:
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Returns information about the geometry and configuration of
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the graphics controller's current frame buffer configuration
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Arguments:
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EDIDTable - EDID block to be parsed
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TableSize - Size of the EDID block
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TimingInfo - The timing information read out from EDID
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Returns:
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EFI_SUCCESS - Valid timing infor returned
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EFI_VOLUME_CORRUPTED - EDID table corrupted
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EFI_UNSUPPORTED - No valid information found
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--*/
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;
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BOOLEAN
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SearchEdidTiming (
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VALID_EDID_TIMING *ValidEdidTiming,
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EDID_TIMING *EdidTiming
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)
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/*++
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Routine Description:
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Search a specified Timing in all the valid EDID timings.
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Arguments:
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ValidEdidTiming - All valid EDID timing information.
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EdidTiming - The Timing to search for.
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Returns:
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TRUE - Found.
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FALSE - Not found.
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--*/
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;
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#endif
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