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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/SwitchableGraphics/Sg TPV/SgTpvPei.c 4 10/30/13 6:42a Joshchou $
//
// $Revision: 4 $
//
// $Date: 10/30/13 6:42a $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/SwitchableGraphics/Sg TPV/SgTpvPei.c $
//
// 4 10/30/13 6:42a Joshchou
// [TAG] None
// [Category] Improvement
// [Description] system assert after clear nvram,and we have give it
// value,so do not assert
//
// 3 2/07/13 2:58a Joshchou
// [TAG] None
// [Category] Improvement
// [Description] Install a PPI for broadcasting OEM.
//
// 2 9/09/12 11:15p Joshchou
// [TAG] EIPNone
// [Category] New Feature
// [Description] Tpv module support for sharkbay.
// [Files] SgTpv.sdl
// SgTpv.mak
// SgTpvPei.c
// SgTpvPei.dxs
// SgTpvDxe.c
// SgTpvDxe.dxs
// SgTpv.cif
//
// 3 12/06/11 2:33a Alanlin
// [TAG] EIP76248
// [Category] New Feature
// [Description] PX 5.0 feature updated.
//
// 2 10/14/11 2:54a Alanlin
// [TAG] EIP72054
// [Category] Improvement
// [Description] SgTpv is not compatible with SETUP_DATA_LAYOUT_OVERRIDE
// in core > 4.6.4.1
// [Files] Board\EM\SgTpv\SgTpvPei.c
//
// 1 6/27/11 5:25a Alanlin
// [TAG] EIP61848
// [Category] New Feature
// [Description] Initial check-in.Integrated SwitchableGraphics Intel
// Reference code 0.6.0
// [Files] SgTpv.cif
// SgTpv.sdl
// SgTpv.mak
// SgTpvPei.c
// SgTpvPei.dxs
// SgTpvDxe.c
// SgTpvDxe.dxs
//
//
// 5 3/17/11 6:12p Alexp
// 1. Add nNvOptimusSMM module part
// 2. cleaned up SgTpvPei.c
// 3. Optimus:Add code to preserve HD AudioCodec enable flag in CMOS
//
// 4 11/12/10 1:08p Alexp
// Update to match Intel HR SwitchableGraphics Reference Code Version
// 1.00
// Code to set SSID for IGD moved to SgPei.c
//
// 3 9/30/10 2:51p Alexp
// [TAG] EIP43103 ---> Set IGD SSID/SVID based on the SG mode
//
// 2 9/21/10 5:23p Alexp
// [TAG] EIP43103 ---> re-arranged include statements
//
// 1 9/17/10 1:12p Alexp
// [TAG] EIP43103
// [Category] Function Request
// [Severity] Normal
// [Symptom] Initial check-in of SgTPV module
// [RootCause] Request to implement SG reference code .
// [Solution] Initial check-in.
// [Files]
// SgTpv.cif;*.sdl;*.mak;
// SgTpvPei.c;*.dxs;
// SgTpvDxe.c;*.dxs
//
//
//**********************************************************************
//<AMI_FHDR_START>
//----------------------------------------------------------------------------
//
// Name: SgTpvPEI.c
//
// Description: This file contains the PEI SG Entry point SgPei_Init.
// The function updates SG Policy settings
//
// Notes: MAKE SURE NO PEI OR DXE SPECIFIC CODE IS NEEDED
//
//----------------------------------------------------------------------------
//<AMI_FHDR_END>
#include <Token.h>
#define SETUP_GUID { 0xEC87D643, 0xEBA4, 0x4BB5, 0xA1, 0xE5, 0x3F, 0x3E, 0x36, 0xB2, 0x0D, 0xA9 }
#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
#include "EdkIIGluePeim.h"
#include "EdkIIGlueIoLib.h"
#endif
#include "Pei.h"
#include "SaAccess.h"
#include EFI_PPI_DEPENDENCY (Variable)
#include EFI_PPI_DEPENDENCY (SaPlatformPolicy)
#include EFI_GUID_DEFINITION (SaDataHob)
static EFI_GUID gSetupGuid = SETUP_GUID;
#include <SetupDataDefinition.h>
EFI_GUID guidEndOfSgTpvPei = EFI_PEI_END_OF_SG_TPV_PPI_GUID;
static EFI_PEI_PPI_DESCRIPTOR EndOfSgTpvPpiList[] =
{
{
EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
&guidEndOfSgTpvPei, NULL
}
};
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: SgTpvPeiInit
//
// Description: This function is the entry point for this PEI.
//
// Input: FfsHeader Pointer to the FFS file header
// PeiServices Pointer to the PEI services table
//
// Output: Return Status based on errors that occurred while waiting for
// time to expire.
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
EFIAPI
SgTpvPeiInit (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
EFI_PEI_READ_ONLY_VARIABLE_PPI *VariableServices;
UINTN VariableSize;
SETUP_DATA SetupData;
SA_PLATFORM_POLICY_PPI *SaPlatformPolicyPpi;
EFI_GUID gSaPlatformPolicyPpiGuid = SA_PLATFORM_POLICY_PPI_GUID;
DEBUG ((EFI_D_ERROR, "==============SgTpvPeiInit==========\n"));
//
// Locate Variable Ppi
//
Status = (*PeiServices)->LocatePpi(PeiServices,
&gPeiReadOnlyVariablePpiGuid,
0,
NULL,
&VariableServices);
//
// Make sure we have a PPI, if not, just return.
//
if (!VariableServices) {
return EFI_UNSUPPORTED;
}
VariableSize = sizeof(SETUP_DATA);
//
// Get Setup Variable
//
Status = VariableServices->PeiGetVariable (
PeiServices,
L"Setup",
&gSetupGuid,
NULL,
&VariableSize,
&SetupData);
if (EFI_ERROR(Status))
return Status;
//
// Get platform policy settings through the SgPlatformPolicy PPI
//
Status = (**PeiServices).LocatePpi (
PeiServices,
&gSaPlatformPolicyPpiGuid,
0,
NULL,
&SaPlatformPolicyPpi
);
ASSERT_EFI_ERROR (Status);
//
// GPIO Assigned from policy
//
//
// Initialzie the Platform Configuration
//
//
// Switchable Graphics mode set as MUXED (By default)
//
if( SetupData.PrimaryDisplay == 4 ) {
SaPlatformPolicyPpi->PlatformData->SgMode = SetupData.SgMuxMode;
SaPlatformPolicyPpi->PlatformData->PXFixedDynamicMode = SetupData.PX_FIXED_DYNAMIC_MODE;
} else if ((SetupData.PrimaryDisplay == 1) || (SetupData.PrimaryDisplay == 3)) { // PEG || Auto
SaPlatformPolicyPpi->PlatformData->SgMode = 3;//SgModeDgpu;
} else if (SetupData.PrimaryDisplay == 0) { // IGFX
//
// In IGFX only mode mode set Switchable Gfx mode as Disabled
//
SaPlatformPolicyPpi->PlatformData->SgMode = SgModeDisabled;
}
//
// Set SSID/SVID for IGD in SG mode only
//
SaPlatformPolicyPpi->PlatformData->SgSubSystemId = (UINT16)((SG_MUXLESS_SSVID_DID >> 16 )& 0xFFFF);
(*PeiServices)->InstallPpi(PeiServices,EndOfSgTpvPpiList);
return Status;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
|
