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//*************************************************************************
//*************************************************************************
//** **
//** (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/SMM/PowerButton/PowerButton.c 9 9/20/11 3:12p Markw $
//
// $Revision: 9 $
//
// $Date: 9/20/11 3:12p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/SMM/PowerButton/PowerButton.c $
//
// 9 9/20/11 3:12p Markw
// [TAG] EIP67890
// [Category] Spec Update
// [Severity] Normal
// [Description] Support power button handler in PI 1.1
//
// [Files] PowerButton.c, PowerButton.mak, PowerButton. dxs
//
// 8 7/08/09 7:56p Markw
// Update headers.
//
// 7 1/07/08 4:26p Robert
// Updated for coding standard
//
// 6 5/30/07 5:29p Markw
// Use library function to shutdown.
//
// 5 3/28/07 1:27p Markw
// Update headers.
//
// 4 2/26/07 11:44a Yakovlevs
// Added arming PwrButton Smi when registering SMI handler.
// In event handler added check for Sleep SMI enable and disabling it.
//
// 3 11/11/05 11:46a Markw
// Renamed IntallSmmHandler to InitSmmHandler because of build errors
// because another driver used InstallSmmHandler.
//
// 2 11/08/05 6:05p Markw
// Using InstallSmiHandler library function.
//
// 1 1/28/05 4:33p Sivagarn
// Power Button SMM Component - Initial check in
//
//
//**********************************************************************
//<AMI_FHDR_START>
//---------------------------------------------------------------------------
//
// Name: PowerButton.C
//
// Description: Provide functions to register and handle Powerbutton
// functionality. This code is generic and as long as PM
// base address SDL token is defined properly this should
// work fine.
//
//---------------------------------------------------------------------------
//<AMI_FHDR_END>
#include <Token.h>
#include <AmiDxeLib.h>
#include <AMICSPLIBInc.h>
#if PI_SPECIFICATION_VERSION < 0x1000A
#include <Protocol\SmmPowerButtonDispatch.h>
#else
#include <Protocol\SmmPowerButtonDispatch2.h>
#endif
EFI_GUID gThisFileGuid =
{0xe566b097,0x4378,0x485f,0x91,0xd0,0x1c,0x09,0x7c,0x19,0x0c,0xe2};
//E566B097-4378-485f-91D0-1C097C190CE2
#if PI_SPECIFICATION_VERSION < 0x1000A
EFI_SMM_POWER_BUTTON_DISPATCH_CONTEXT DispatchContext = {PowerButtonEntry};
#else
EFI_SMM_POWER_BUTTON_REGISTER_CONTEXT DispatchContext = {EfiPowerButtonExit};
EFI_SMM_BASE2_PROTOCOL *pSmmBase2;
EFI_SMM_SYSTEM_TABLE2 *pSmst2;
#endif
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: PowerButtonActivated
//
// Description: If the power button is pressed, then this function is called.
//
// Input:
// IN EFI_HANDLE DispatchHandle
// IN EFI_SMM_POWER_BUTTON_DISPATCH_CONTEXT *DispatchContext
//
// Output: VOID
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
#if PI_SPECIFICATION_VERSION < 0x1000A
VOID PowerButtonActivated(
IN EFI_HANDLE DispatchHandle,
IN EFI_SMM_POWER_BUTTON_DISPATCH_CONTEXT *DispatchContext
)
#else
EFI_STATUS
EFIAPI
PowerButtonActivated(
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context OPTIONAL,
IN OUT VOID *CommBuffer OPTIONAL,
IN OUT UINTN *CommBufferSize OPTIONAL)
#endif
{
SBLib_Shutdown();
#if PI_SPECIFICATION_VERSION >= 0x1000A
return EFI_SUCCESS;
#endif
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: InSmmFunction
//
// Description: This function is called from SMM during SMM registration.
//
// Input:
// IN EFI_HANDLE ImageHandle
// IN EFI_SYSTEM_TABLE *SystemTable
//
// Output: EFI_STATUS
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS InSmmFunction(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
{
#if PI_SPECIFICATION_VERSION >= 0x1000A
EFI_SMM_POWER_BUTTON_DISPATCH2_PROTOCOL *PowerButton;
#else
EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL *PowerButton;
#endif
EFI_HANDLE hPowerButton;
EFI_STATUS Status;
#if PI_SPECIFICATION_VERSION >= 0x1000A
Status = pSmmBase2->GetSmstLocation(pSmmBase2, &pSmst2);
if (EFI_ERROR(Status)) return Status;
Status = pSmst2->SmmLocateProtocol(
&gEfiSmmPowerButtonDispatch2ProtocolGuid,
NULL,
&PowerButton
);
#else
Status = pBS->LocateProtocol(
&gEfiSmmPowerButtonDispatchProtocolGuid,
NULL,
&PowerButton
);
#endif
if (EFI_ERROR(Status)) return Status;
Status = PowerButton->Register(
PowerButton,
PowerButtonActivated,
&DispatchContext,
&hPowerButton
);
return Status;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: NotInSmmFunction
//
// Description: This function is called from outside of SMM during SMM registration.
//
// Input:
// IN EFI_HANDLE ImageHandle
// IN EFI_SYSTEM_TABLE *SystemTable
//
// Output: EFI_STATUS
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS NotInSmmFunction(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
{
UINT16 Value;
//Clear All PM Statuses
Value = IoRead16(PM_BASE_ADDRESS);
IoWrite16(PM_BASE_ADDRESS,Value);
//Enable PowerButton and Global Enable
IoWrite16(PM_BASE_ADDRESS + 0x02, BIT05 + BIT08);
return EFI_SUCCESS;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: InitPowerButton
//
// Description: This is the entrypoint of the Power button driver.
//
// Input:
// IN EFI_HANDLE ImageHandle
// IN EFI_SYSTEM_TABLE *SystemTable
//
// Output: EFI_STATUS
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS InitPowerButton(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
#if PI_SPECIFICATION_VERSION >= 0x0001000a
EFI_STATUS Status;
#endif
InitAmiLib(ImageHandle, SystemTable);
#if PI_SPECIFICATION_VERSION >= 0x0001000a
Status = pBS->LocateProtocol(&gEfiSmmBase2ProtocolGuid, NULL, &pSmmBase2);
if (EFI_ERROR(Status)) return Status;
return InitSmmHandler(ImageHandle, SystemTable, InSmmFunction, NULL);
#else
return InitSmmHandler(ImageHandle, SystemTable, InSmmFunction, NotInSmmFunction);
#endif
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
