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/** @file
Definitions for HECI driver.
Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _HECI_CORE_H
#define _HECI_CORE_H
#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PciLib.h>
#include <Library/PerformanceLib.h>
#include <Library/TimerLib.h>
#include <SeCState.h>
#include <CoreBiosMsg.h>
#include <HeciRegs.h>
#include <SeCAccess.h>
#include <IndustryStandard/Pci22.h>
#include <Library/MmPciLib.h>
#include <Library/SeCLib.h>
//
// HECI bus function version
//
#define HBM_MINOR_VERSION 0
#define HBM_MAJOR_VERSION 1
#define STALL_1_MILLISECOND 1000
#define CSE_WAIT_TIMEOUT 50
//
// Local/Private functions not part of EFIAPI for HECI
//
/**
Waits for the ME to report that it is ready for communication over the HECI
interface.
@param[in] None
@retval EFI_STATUS
**/
EFI_STATUS
WaitForSECInputReady (
VOID
);
/**
Calculate if the circular buffer has overflowed.
@param[in] ReadPointer Location of the read pointer.
@param[in] WritePointer Location of the write pointer.
@retval Number of filled slots.
**/
UINT8
FilledSlots (
IN UINT32 ReadPointer,
IN UINT32 WritePointer
);
/**
Calculate if the circular buffer has overflowed.
@param[in] ReadPointer Value read from host/me read pointer
@param[in] WritePointer Value read from host/me write pointer
@param[in] BufferDepth Value read from buffer depth register
@retval EFI_STATUS
**/
EFI_STATUS
OverflowCB (
IN UINT32 ReadPointer,
IN UINT32 WritePointer,
IN UINT32 BufferDepth
);
/**
SeCAlivenessRequest
@param[in] HeciMemBar
@param[in] Request
@retval EFI_STATUS
**/
EFI_STATUS
SeCAlivenessRequest (
IN UINTN *HeciMemBar,
IN UINT32 Request
);
#endif // _HECI_CORE_H
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