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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2014, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/AmiGopPolicy/AmiGopPolicy.c 6 5/15/14 2:22a Jameswang $
//
// $Revision: 6 $
//
// $Date: 5/15/14 2:22a $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/AmiGopPolicy/AmiGopPolicy.c $
//
// 6 5/15/14 2:22a Jameswang
// [TAG] EIP168961
// [Category] Improvement
// [Description] Changed AmiGopOutputDp from AMI_GLOBAL_VARIABLE_GUID to
// AMI_GOP_POLICY_VARIABLE_GUID
//
// 5 4/03/13 4:16a Josephlin
// Fixed CPU Exception Erro if EdidOverrideProtoco got call.
//
// 4 12/18/12 11:03p Josephlin
// [TAG] EIP108311
// [Category] Improvement
// [Description] Create eLINK "OemGopEdidOverrideGetEdidList" for easy
// to implement EdidOverrideProtocol in project.
// [Files] AmiGopPolicy.c
// AmiGopPolicy.sdl
// AmiGopPolicy.mak
// AmiGopPolicyLib.c
//
// 3 11/08/12 12:58a Josephlin
// [TAG] N/A
// [Category] Bug Fix
// [Severity] Normal
// [Symptom] SCT Test Fail
// [RootCause] EFI_GLOBAL_VARIABLE guid is used in non EFI defined
// variable.
// [Solution] New guid AMI_GLOBAL_VARIABLE_GUID is created and used.
// [Files] AmiGopPolicy.c
//
// 2 7/26/12 7:30a Josephlin
// Update File Header.
//
// 1 6/29/12 3:43a Josephlin
// [TAG] EIP91970
// [Category] New Feature
// [Description] Initial Release for Display Switch with UEFI GOP driver
// support.
// [Files] AmiGopPolicy.cif
// AmiGopPolicy.c
// AmiGopPolicy.h
// AmiGopPolicy.mak
// AmiGopPolicy.sd
// AmiGopPolicy.sdl
// AmiGopPolicy.uni
// AmiGopPolicyLib.c
// AmiGopPolicySetup.c
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: AmiGopPolicy.c
//
// Description: AmiGopPolicy output initialization in the DXE stage.
//
//<AMI_FHDR_END>
//**********************************************************************
//----------------------------------------------------------------------
// Include(s)
//----------------------------------------------------------------------
#include <Efi.h>
#include <AmiLib.h>
#include <AmiDxeLib.h>
#include <AmiCspLib.h>
#include <Setup.h>
#include <token.h>
#include <Protocol\DevicePath.h>
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
#include <Protocol\EdidOverride.h>
#endif
#include "AmiGopPolicy.h"
//----------------------------------------------------------------------
// Constant, Macro and Type Definition(s)
//----------------------------------------------------------------------
// Constant Definition(s)
// Macro Definition(s)
// Type Definition(s)
// Function Prototype(s)
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
EFI_STATUS AmiGopEdidOverrideGetEdid (
IN EFI_EDID_OVERRIDE_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle,
OUT UINT32 *Attributes,
IN OUT UINTN *EdidSize,
IN OUT UINT8 **Edid
);
#endif
//----------------------------------------------------------------------
// Variable and External Declaration(s)
//----------------------------------------------------------------------
// Variable Declaration(s)
// GUID Definition(s)
static EFI_GUID gAmiGopPolicyVariableGuid = AMI_GOP_POLICY_VARIABLE_GUID;
// Protocol Definition(s)
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
EFI_EDID_OVERRIDE_PROTOCOL EfiEdidOverrideProtocol = {
AmiGopEdidOverrideGetEdid
};
#endif
// External Declaration(s)
// Function Definition(s)
VOID ConnectDevicePath(IN EFI_DEVICE_PATH_PROTOCOL *pPath);
//----------------------------------------------------------------------
//<AMI_PHDR_START>
//----------------------------------------------------------------------
// Name: ConnectAmiGopPolicyConOut
//
// Description: None.
//
// Input: None.
//
// Output: None.
//
// Notes: None.
//
//----------------------------------------------------------------------
//<AMI_PHDR_END>
VOID ConnectAmiGopPolicyConOut (VOID)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *GopDevicePath = NULL;
UINTN VariableSize = 0;
Status = GetEfiVariable (
L"AmiGopOutputDp",
&gAmiGopPolicyVariableGuid,
NULL,
&VariableSize,
&GopDevicePath);
if ((EFI_ERROR(Status)) || (GopDevicePath == NULL)) return ;
ConnectDevicePath(GopDevicePath);
return;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------
//
// Procedure: AmiGopPolicyEntryPoint
//
// Description: Installs GOP related protocols
//
// Input:
// IN EFI_HANDLE ImageHandle,
// IN EFI_SYSTEM_TABLE *SystemTable
//
// Output:
// EFI_STATUS
//
// Modified:
// None
//
// Referrals: InitAmiLib InstallMultipleProtocolInterfaces
//
// Notes:
// Here is the control flow of this function:
// 1. Initialize Ami Lib.
// 2. Install Driver Binding Protocol
// 3. Return EFI_SUCCESS.
//----------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS AmiGopPolicyEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable )
{
EFI_STATUS Status = EFI_SUCCESS;
#if OEM_EDID_OVERRIDE_PROTOCOL_SUPPORT
EFI_HANDLE Handle = NULL;
InitAmiLib( ImageHandle, SystemTable );
Status = pBS->InstallMultipleProtocolInterfaces(
&Handle,
&gEfiEdidOverrideProtocolGuid,
&EfiEdidOverrideProtocol,
NULL );
#endif
return Status;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
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