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Diffstat (limited to 'Board/EM/Platform/AcpiPlatformSmi.c')
| -rw-r--r-- | Board/EM/Platform/AcpiPlatformSmi.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/Board/EM/Platform/AcpiPlatformSmi.c b/Board/EM/Platform/AcpiPlatformSmi.c new file mode 100644 index 0000000..af9e1ad --- /dev/null +++ b/Board/EM/Platform/AcpiPlatformSmi.c @@ -0,0 +1,247 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* + +//************************************************************************* +// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/Platform/AcpiPlatformSmi.c 1 2/09/12 12:30a Yurenlai $ +// +// $Revision: 1 $ +// +// $Date: 2/09/12 12:30a $ +//************************************************************************* +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/Platform/AcpiPlatformSmi.c $ +// +// 1 2/09/12 12:30a Yurenlai +// Initial check in. +// +//************************************************************************* + +//<AMI_FHDR_START> +//---------------------------------------------------------------------------- +// +// Name: AcpiPlatformSmi.c +// +// Description: This file contains code for all AcpiPlatform SMI events +// +//---------------------------------------------------------------------------- +//<AMI_FHDR_END> + +//---------------------------------------------------------------------------- +// Include(s) +//---------------------------------------------------------------------------- + +#include <Token.h> +#include <AmiDxeLib.h> +#include <AmiCspLib.h> +#include "SmmChildDispatch.h" + +// Produced Protocols + +// Consumed Protocols +#include <Protocol\SmmBase.h> + +//---------------------------------------------------------------------------- +// Constant, Macro and Type Definition(s) +//---------------------------------------------------------------------------- +// Constant Definition(s) + + +// Macro Definition(s) + +// Type Definition(s) + +// Function Prototype(s) + +//---------------------------------------------------------------------------- +// Variable and External Declaration(s) +//---------------------------------------------------------------------------- +// Variable Declaration(s) + + +// GUID Definition(s) + +EFI_GUID gEfiSmmBaseProtocolGuid = EFI_SMM_BASE_PROTOCOL_GUID; +EFI_GUID gSxDispatchProtocolGuid = EFI_SMM_SX_DISPATCH_PROTOCOL_GUID; + + + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: S3PowerReductionFunction +// +// Description: Driving GPIO46 Output to low +// +// Input: None +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +VOID S3PowerReductionFunction(VOID) +{ + // UINT32 Buffer32; + + // Buffer32 = IoRead32(GPIO_BASE_ADDRESS + ICH_GPIO_GP_LVL2); // GPIO Level Select 2 Register + // Buffer32 &= 0xFFFFBFFF; +// IoWrite32(GPIO_BASE_ADDRESS + ICH_GPIO_GP_LVL2, Buffer32); // Program GPIO level drive to logic high + +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: AcpiPlatformSxSmiHandler +// +// Description: This is a AcpiPlatform Sx SMI Handler for Calpella Platform. +// +// Input: DispatchHandle - EFI Handle +// DispatchContext - Pointer to the EFI_SMM_SX_DISPATCH_CONTEXT +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +VOID AcpiPlatformSxSmiHandler( + IN EFI_HANDLE DispatchHandle, + IN EFI_SMM_SX_DISPATCH_CONTEXT *DispatchContext) +{ + if (DispatchContext->Type == SxS3) + S3PowerReductionFunction(); + +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: InSmmFunction +// +// Description: Installs AcpiPlatform SMM Child Dispatcher Handler. +// +// Parameters: ImageHandle - Image handle +// *SystemTable - Pointer to the system table +// +// Returns: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +EFI_STATUS InSmmFunction ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable ) +{ + EFI_STATUS Status; + EFI_HANDLE Handle; + EFI_SMM_BASE_PROTOCOL *SmmBaseProtocol; + // Sx SMI + EFI_SMM_SX_DISPATCH_PROTOCOL *pSxDispatch; + EFI_SMM_SX_DISPATCH_CONTEXT SxS1Context = {SxS1, SxEntry}; + EFI_SMM_SX_DISPATCH_CONTEXT SxS3Context = {SxS3, SxEntry}; + EFI_SMM_SX_DISPATCH_CONTEXT SxS4Context = {SxS4, SxEntry}; + EFI_SMM_SX_DISPATCH_CONTEXT SxS5Context = {SxS5, SxEntry}; + + Status = pBS->LocateProtocol( &gEfiSmmBaseProtocolGuid, \ + NULL, \ + &SmmBaseProtocol ); + if (EFI_ERROR(Status)) return Status; + + // Local SMI Procotol + Status = pBS->LocateProtocol( + &gSxDispatchProtocolGuid, + NULL, + &pSxDispatch); + if (EFI_ERROR(Status)) + pSxDispatch = NULL; + + // Register SMIs + if (pSxDispatch != NULL) + { + Status = pSxDispatch->Register( + pSxDispatch, + AcpiPlatformSxSmiHandler, + &SxS1Context, + &Handle); + + Status = pSxDispatch->Register( + pSxDispatch, + AcpiPlatformSxSmiHandler, + &SxS3Context, + &Handle); + + Status = pSxDispatch->Register( + pSxDispatch, + AcpiPlatformSxSmiHandler, + &SxS4Context, + &Handle); + + Status = pSxDispatch->Register( + pSxDispatch, + AcpiPlatformSxSmiHandler, + &SxS5Context, + &Handle); + } + + + + return EFI_SUCCESS; + +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: InitializeAcpiPlatformSMISmm +// +// Description: Installs AcpiPlatform SMM Child Dispatcher Handler. +// +// Parameters: ImageHandle - Image handle +// *SystemTable - Pointer to the system table +// +// Returns: EFI_STATUS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> + +EFI_STATUS InitializeAcpiPlatformSMISmm ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable ) +{ + + InitAmiLib(ImageHandle, SystemTable); + + return InitSmmHandler(ImageHandle, SystemTable, InSmmFunction, NULL); +} + +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2011, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* |