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/** @file
Defines and prototypes for the ActiveBios driver.
This driver implements the ActiveBios protocol for the PCH.
It provides a simple implementation that allows for basic control
of the PCH flash mapping state.
@copyright
Copyright (c) 2005 - 2012 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
This file contains an 'Intel Peripheral Driver' and uniquely
identified as "Intel Reference Module" and is
licensed for Intel CPUs and chipsets under the terms of your
license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the
license agreement
**/
#ifndef _ACTIVE_BIOS_H_
#define _ACTIVE_BIOS_H_
//
// Include files
//
//
// External include files do NOT need to be explicitly specified in real EDKII
// environment
//
#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
#include "EdkIIGlueDxe.h"
#include EFI_PROTOCOL_PRODUCER (ActiveBios)
#include "PchAccess.h"
#include "PchPlatformLib.h"
#endif
//
// Active BIOS private data
//
#define ACTIVE_BIOS_SIGNATURE EFI_SIGNATURE_32 ('D', 'P', 'B', 'A')
typedef struct {
UINT32 Signature;
EFI_HANDLE Handle;
EFI_ACTIVE_BIOS_PROTOCOL ActiveBiosProtocol;
UINTN CurrentKey;
BOOLEAN Locked;
} ACTIVE_BIOS_INSTANCE;
#define ACTIVE_BIOS_INSTANCE_FROM_ACTIVE_BIOS_THIS(a) \
CR ( \
a, \
ACTIVE_BIOS_INSTANCE, \
ActiveBiosProtocol, \
ACTIVE_BIOS_SIGNATURE \
)
//
// Driver global data
//
extern ACTIVE_BIOS_INSTANCE mPrivateData;
extern UINT32 mPchRootComplexBar;
//
// Protocol constructor
//
/**
Initialization function for the ActiveBios protocol implementation.
@param[in] This Pointer to the protocol
@retval EFI_SUCCESS The function completed successfully
**/
EFI_STATUS
ActiveBiosProtocolConstructor (
IN EFI_ACTIVE_BIOS_PROTOCOL *This
);
//
// Driver entry point
//
/**
ActiveBios driver entry point function.
@param[in] ImageHandle Image handle for this driver image
@param[in] SystemTable Pointer to the EFI System Table
@retval EFI_SUCCESS Application completed successfully
@exception EFI_UNSUPPORTED Unsupported chipset detected
**/
EFI_STATUS
InstallActiveBios (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
#endif
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