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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/BIN/Modules/ACPI/Template/Core/AtadSmi.c 1 1/23/14 5:47p Oleksiyy $
//
// $Revision: 1 $
//
// $Date: 1/23/14 5:47p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/BIN/Modules/ACPI/Template/Core/AtadSmi.c $
//
// 1 1/23/14 5:47p Oleksiyy
// [TAG] EIP113941
// [Category] New Feature
// [Description] Time and Alarm ACPI device implemented.
// [Files] AtadSmi.cif
// AtadSmi.sdl
// AtadSmi.mak
// AtadSmi.dxs
// AtadSmi.h
// AtadSmi.c
//
// 6 1/13/10 2:13p Felixp
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: <AtadSmi.c>
//
// Description:
//
//<AMI_FHDR_END>
//**********************************************************************
#include <AmiDxeLib.h>
#include <AmiSmm.h>
#include "AtadSmi.h"
#include <token.h>
#if PI_SPECIFICATION_VERSION<0x0001000A
#include <Protocol/SmmSwDispatch.h>
#include <Protocol/SmmControl.h>
#else
#include <Protocol/SmmSwDispatch2.h>
#include <Protocol/SmmControl2.h>
#include <Protocol/SmmCpu.h>
#endif
EFI_HANDLE VarSmiHandle = NULL;
VOID *gAtadBuffer = NULL;
EFI_EVENT EvtAtadSmi;
VOID *RegAtadSmi;
UINT32 i=0;
UINT32 j=0;
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: AtadSmiHandler
//
// Description: The SMI handler for Nvram services.
//
// Input: NONE
//
//
// Output: EFI_STATUS
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS AtadSmiHandler ()
{
EFI_STATUS Status = EFI_DEVICE_ERROR;
ATAD_VARIABLE *SmmVarBuffer;
EFI_GUID gEfiTimeVariableGuid = EFI_TIME_VARIABLE_GUID;
TIME_VARIABLE TimeVar;
UINTN TimeVarSize = sizeof(TIME_VARIABLE);
UINT32 TimeVarFlags = EFI_VARIABLE_NON_VOLATILE |
EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS;
//TRACE((-1,"AtadSmiHandler . 1.\n"));
//checkpoint(0x24);
if (gAtadBuffer == NULL) return EFI_SUCCESS;
SmmVarBuffer = (ATAD_VARIABLE*)gAtadBuffer;
//checkpoint(0x25);
switch (SmmVarBuffer->Signature){
case ATAD_SW_SMI_UPDATE:
//TRACE((-1,"AtadSmiHandler . ATAD_SW_SMI_UPDATE.\n"));
TimeVar.TimeZone = SmmVarBuffer->TimeZone;
TimeVar.Daylight = SmmVarBuffer->DayLight;
Status = pRS->SetVariable( L"EfiTime",
&gEfiTimeVariableGuid,
TimeVarFlags,
TimeVarSize,
&TimeVar );
if (!EFI_ERROR(Status)) SmmVarBuffer->Signature = ATAD_SW_SMI_OK;
else SmmVarBuffer->Signature = ATAD_SW_SMI_NOT_GOOD;
//checkpoint(0x30+i++);
break;
case ATAD_SW_SMI_GET:
//TRACE((-1,"AtadSmiHandler . ATAD_SW_SMI_GET.\n"));
Status = pRS->GetVariable( L"EfiTime",
&gEfiTimeVariableGuid,
&TimeVarFlags,
&TimeVarSize,
&TimeVar );
if (!EFI_ERROR(Status))
{
SmmVarBuffer->TimeZone = TimeVar.TimeZone;
SmmVarBuffer->DayLight = TimeVar.Daylight;
SmmVarBuffer->Signature = ATAD_SW_SMI_OK;
}
else SmmVarBuffer->Signature = ATAD_SW_SMI_NOT_GOOD;
//checkpoint(0x40+j++);
break;
default:
SmmVarBuffer->Signature = ATAD_SW_SMI_NOT_GOOD;
}
//checkpoint(0x26);
return EFI_SUCCESS;
}
EFI_STATUS AtadSmiHandler2 (
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context OPTIONAL,
IN OUT VOID *CommBuffer OPTIONAL,
IN OUT UINTN *CommBufferSize OPTIONAL
)
{
CONST EFI_SMM_SW_REGISTER_CONTEXT *DispatchContext = Context;
//checkpoint(0x22);
//TRACE((-1,"AtadSmiHandler2\n"));
if ((gAtadBuffer == NULL) || ((UINT8)DispatchContext->SwSmiInputValue != ACPI_TIME_AND_ALARM_SW_SMI))
return EFI_DEVICE_ERROR;
//TRACE((-1,"AtadSmiHandler22\n"));
//checkpoint(0x23);
return AtadSmiHandler();
}
EFI_STATUS AtadInSmmFunction(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable )
{
EFI_STATUS Status;
EFI_HANDLE Handle = 0;
#if PI_SPECIFICATION_VERSION<0x0001000A
EFI_GUID EfiSmmSwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH_PROTOCOL_GUID;
EFI_SMM_SW_DISPATCH_PROTOCOL *SwDispatch = NULL;
EFI_SMM_SW_DISPATCH_CONTEXT SwContext;
Status = pBS->LocateProtocol(
#else
EFI_GUID EfiSmmSwDispatchProtocolGuid = EFI_SMM_SW_DISPATCH2_PROTOCOL_GUID;
EFI_SMM_SW_DISPATCH2_PROTOCOL *SwDispatch = NULL;
EFI_SMM_SW_REGISTER_CONTEXT SwContext;
Status = pSmst->SmmLocateProtocol(
#endif
&EfiSmmSwDispatchProtocolGuid,
NULL,
&SwDispatch
);
ASSERT_EFI_ERROR(Status);
if (EFI_ERROR(Status))
return Status;
SwContext.SwSmiInputValue = ACPI_TIME_AND_ALARM_SW_SMI;
Status = SwDispatch->Register ( SwDispatch,
AtadSmiHandler2,
&SwContext,
&Handle );
ASSERT_EFI_ERROR(Status);
TRACE((TRACE_ALWAYS,"AtadInitSmmHandler pSwDispatch->Register Status=%r\n",Status));
return Status;
}
EFI_STATUS
AtadSmiEntry(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_GUID AtadSmiGuid = ATAD_SMI_GUID;
UINTN VariableSize = sizeof(gAtadBuffer);
InitAmiLib(ImageHandle, SystemTable);
TRACE((TRACE_ALWAYS,"AtadSmiEntry\n"));
Status = pRS->GetVariable ( L"AtadSmiBuffer",
&AtadSmiGuid,
NULL,
&VariableSize,
&gAtadBuffer );
if ((EFI_ERROR(Status)) || (gAtadBuffer == NULL)) return EFI_NOT_FOUND;
//TRACE((-1, "AtadSmiEntry2 \n"));
Status = InitSmmHandler(
ImageHandle,
SystemTable,
AtadInSmmFunction,
NULL
);
TRACE((TRACE_ALWAYS,"AtadInitSmmHandler Status=%r\n",Status));
ASSERT_EFI_ERROR(Status);
return EFI_SUCCESS;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2010, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
|
