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/** @file
This code supports a private implementation of the Legacy Region protocol.
@copyright
Copyright (c) 1999 - 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 _LEGACY_REGION_H_
#define _LEGACY_REGION_H_
#include "EdkIIGlueDxe.h"
#include "Pci22.h"
#include EFI_PROTOCOL_PRODUCER (LegacyRegion)
#include EFI_PROTOCOL_DEFINITION (PciRootBridgeIo)
#define LEGACY_REGION_INSTANCE_SIGNATURE EFI_SIGNATURE_32 ('R', 'E', 'G', 'N')
#include EFI_ARCH_PROTOCOL_CONSUMER (Cpu)
#define LEGACY_REGION_DECODE_ROM 3
#include "SaAccess.h"
///
/// PAM registers granularity is 16 KB
///
#define PAM_GRANULARITY 0x4000
#define UNLOCK 0x0000
#define LOCK 0x0001
#define BOOTLOCK 0x0002
typedef struct {
UINT32 Signature;
EFI_HANDLE Handle;
EFI_LEGACY_REGION_PROTOCOL LegacyRegion;
EFI_HANDLE ImageHandle;
///
/// Protocol for PAM register access
///
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
} LEGACY_REGION_INSTANCE;
#define LEGACY_REGION_INSTANCE_FROM_THIS (this) CR (this, \
LEGACY_REGION_INSTANCE, \
LegacyRegion, \
LEGACY_REGION_INSTANCE_SIGNATURE \
)
/**
Install Driver to produce Legacy Region protocol.
@param[in] ImageHandle Handle for the image of this driver
@retval EFI_SUCCESS - Legacy Region protocol installed
@retval Other - No protocol installed, unload driver.
**/
EFI_STATUS
LegacyRegionInstall (
IN EFI_HANDLE ImageHandle
)
;
#endif
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