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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2013, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//*************************************************************************
// $Header: /Alaska/SOURCE/Modules/TCG2/Libraries/Tpm20CRBLib/Tpm20CRBLib.h 2 6/14/14 12:24a Fredericko $
//
// $Revision: 2 $
//
// $Date: 6/14/14 12:24a $
//*************************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/TCG2/Libraries/Tpm20CRBLib/Tpm20CRBLib.h $
//
// 2 6/14/14 12:24a Fredericko
//
// 1 4/21/14 2:15p Fredericko
//
// 1 10/08/13 11:59a Fredericko
// Initial Check-In for Tpm-Next module
//
// 2 9/16/13 1:51p Fredericko
//
// 1 7/10/13 5:51p Fredericko
// [TAG] EIP120969
// [Category] New Feature
// [Description] TCG (TPM20)
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name:
//
// Description:
//
//<AMI_FHDR_END>
//**********************************************************************
#include <Efi.h>
#include <token.h>
//Defines ACPI Interface for Control Resource Buffer Access
#define TPM20H2NS(x) ((((x) << 8) | ((x) >> 8)) & 0xffff)
#define TPM20H2NL(x) (TPM20H2NS ((x) >> 16) | (TPM20H2NS ((x) & 0xffff) << 16))
#define CONTROL_AREA_RSVD 0x00
#define CONTROL_AREA_ERROR 0x04
#define CONTROL_AREA_CANCEL 0x08
#define CONTROL_AREA_START 0x0C
#define CONTROL_AREA_INT 0x10
#define CONTROL_AREA_CMD_SZ 0x18
#define CONTROL_AREA_CMD_BASE 0x1C
#define CONTROL_AREA_RSP_SZ 0x24
#define CONTROL_AREA_RSP_BASE 0x28
//Timeouts
#define TIMEOUT_A 500 ///< 500 microseconds
#define TIMEOUT_B 500 * 1000 ///< 10ms (max command processing time in PK-TPM ca. 3ms)
#define TIMEOUT_C 1000 * 1000 ///< 1s
#define TIMEOUT_D 500 * 1000 ///< 500 ms
#define POLLING_PERIOD 140 ///< Poll register every 140 microsecondss
#define CRB_DEVICE_CMD 0x40
#define CRB_DEVICE_STS 0x44
#define TPM20_CRB_IDLE 0x02
#define TPM20_MAX_COMMAND_SIZE 0x0F80
#define StartStatusFieldSet 0x00000001
#define TPM20_CRB_CMD_BASE 0x80
#define TPM20_CRB_RSP_BASE 0x80
#define TPM20_CRBSTATUS_START 0x00000001
#define TPM20_CRB_ALL_CLEAR 0xFFFFFFFF
#define RESPONSE_HEADER_SIZE 0x0a
#pragma pack(1)
typedef struct _STATUS_FIELD_
{
UINT32 Rsvd;
UINT32 Error;
UINT32 Cancel;
UINT32 Start;
}STATUS_FIELD;
typedef struct _CONTROL_AREA_LAYOUT_
{
STATUS_FIELD StatusFieled;
UINT64 IntCntrl;
UINT32 Cmd_Sz;
UINT64 Cmd_Addrs;
UINT32 Rsp_Sz;
UINT64 Rsp_Addrs;
}CONTROL_AREA_LAYOUT;
typedef struct _GENERIC_RESP_HDR_
{
UINT16 Tag;
UINT32 RespSize;
UINT32 RespCode;
}GENERIC_RESP_HDR;
#pragma pack()
EFI_STATUS
EFIAPI
CrbSubmitCmd(
IN UINT8 *InputBuffer,
IN UINT32 InputBufferSize,
OUT UINT8 *OutputBuffer,
OUT UINT32 *OutputBufferSize);
BOOLEAN isTpm20CrbPresent();
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2013, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
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