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/* $NoKeywords:$ */
/**
* @file
*
* FCH ACPI lib
*
*
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: FCH
* @e \$Revision: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 2010) $
*
*/
/*
*****************************************************************************
*
* Copyright (c) 2011, Advanced Micro Devices, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Advanced Micro Devices, Inc. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
****************************************************************************
*/
#include "FchPlatform.h"
#define FILECODE PROC_FCH_COMMON_ACPILIB_FILECODE
//
//
// Routine Description:
//
// Locate ACPI table
//
// Arguments:
//
// Signature - table signature
//
//Returns:
//
// pointer to ACPI table
//
//
VOID*
AcpiLocateTable (
IN UINT32 Signature
)
{
UINT32 Index;
UINT32 *RsdPtr;
UINT32 *Rsdt;
UINTN TableOffset;
DESCRIPTION_HEADER *CurrentTable;
RsdPtr = (UINT32*) (UINTN) FCHOEM_ACPI_TABLE_RANGE_LOW;
Rsdt = NULL;
do {
if ( *RsdPtr == ' DSR' && *(RsdPtr + 1) == ' RTP' ) {
Rsdt = (UINT32*) (UINTN) ((RSDP_HEADER*)RsdPtr)->RsdtAddress;
break;
}
RsdPtr += 4;
} while ( RsdPtr <= (UINT32*) (UINTN) FCHOEM_ACPI_TABLE_RANGE_HIGH );
if ( Rsdt != NULL && AcpiGetTableCheckSum (Rsdt) == 0 ) {
for ( Index = 0; Index < (((DESCRIPTION_HEADER*)Rsdt)->Length - sizeof (DESCRIPTION_HEADER)) / 4; Index++ ) {
TableOffset = *(UINTN*) ((UINT8*)Rsdt + sizeof (DESCRIPTION_HEADER) + Index * 4);
CurrentTable = (DESCRIPTION_HEADER*)TableOffset;
if ( CurrentTable->Signature == Signature ) {
return CurrentTable;
}
}
}
return NULL;
}
//
//
// Routine Description:
//
// Update table CheckSum
//
// Arguments:
//
// TablePtr - table pointer
//
// Returns:
//
// none
//
//
VOID
AcpiSetTableCheckSum (
IN VOID *TablePtr
)
{
UINT8 CheckSum;
CheckSum = 0;
((DESCRIPTION_HEADER*)TablePtr)->CheckSum = 0;
CheckSum = AcpiGetTableCheckSum (TablePtr);
((DESCRIPTION_HEADER*)TablePtr)->CheckSum = (UINT8) (FCHOEM_ACPI_BYTE_CHECHSUM - CheckSum);
}
//
//
// Routine Description:
//
// Get table CheckSum - Get ACPI table checksum
//
// Arguments:
//
// TablePtr - table pointer
//
// Returns:
//
// none
//
//
UINT8
AcpiGetTableCheckSum (
IN VOID *TablePtr
)
{
return GetByteSum (TablePtr, ((DESCRIPTION_HEADER*)TablePtr)->Length);
}
//
//
// Routine Description:
//
// GetByteSum - Get BYTE checksum value
//
// Arguments:
//
// DataPtr - table pointer
// Length - table length
//
// Returns:
//
// CheckSum - CheckSum value
//
//
UINT8
GetByteSum (
IN VOID *DataPtr,
IN UINT32 Length
)
{
UINT32 Index;
UINT8 CheckSum;
CheckSum = 0;
for ( Index = 0; Index < Length; Index++ ) {
CheckSum = CheckSum + (*((UINT8*)DataPtr + Index));
}
return CheckSum;
}
//
//
// Routine Description:
//
// GetFchAcpiMmioBase - Get FCH HwAcpi MMIO Base Address
//
// Arguments:
//
// AcpiMmioBase - HwAcpi MMIO Base Address
// StdHeader - Amd Stand Header
//
// Returns:
//
// AcpiMmioBase - HwAcpi MMIO Base Address
//
//
VOID
GetFchAcpiMmioBase (
OUT UINT32 *AcpiMmioBase,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
UINT32 AcpiMmioBaseAddressDword;
ReadPmio (FCH_PMIOA_REG24 + 2, AccessWidth16, &AcpiMmioBaseAddressDword, StdHeader);
*AcpiMmioBase = AcpiMmioBaseAddressDword << 16;
}
//
//
// Routine Description:
//
// GetFchAcpiPmBase - Get FCH HwAcpi PM Base Address
//
// Arguments:
//
// AcpiPmBase - HwAcpi PM Base Address
// StdHeader - Amd Stand Header
//
// Returns:
//
// AcpiPmBase - HwAcpi PM Base Address
//
//
VOID
GetFchAcpiPmBase (
OUT UINT16 *AcpiPmBase,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
ReadPmio (FCH_PMIOA_REG60, AccessWidth16, AcpiPmBase, StdHeader);
}
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