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/** @file
MCFG Table Generator
Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/AcpiLib.h>
#include <Library/DebugLib.h>
#include <Protocol/AcpiTable.h>
// Module specific include files.
#include <AcpiTableGenerator.h>
#include <ConfigurationManagerObject.h>
#include <ConfigurationManagerHelper.h>
#include <Library/TableHelperLib.h>
#include <Protocol/ConfigurationManagerProtocol.h>
/** Construct the ACPI table using the ACPI table data provided.
This function invokes the Configuration Manager protocol interface
to get the required hardware information for generating the ACPI
table.
If this function allocates any resources then they must be freed
in the FreeXXXXTableResources function.
@param [in] This Pointer to the table generator.
@param [in] AcpiTableInfo Pointer to the ACPI Table Info.
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
Protocol Interface.
@param [out] Table Pointer to the constructed ACPI Table.
@retval EFI_SUCCESS Table generated successfully.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
**/
STATIC
EFI_STATUS
EFIAPI
BuildRawTable (
IN CONST ACPI_TABLE_GENERATOR * CONST This,
IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
OUT EFI_ACPI_DESCRIPTION_HEADER ** CONST Table
)
{
ASSERT (This != NULL);
ASSERT (AcpiTableInfo != NULL);
ASSERT (CfgMgrProtocol != NULL);
ASSERT (Table != NULL);
ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);
ASSERT (AcpiTableInfo->AcpiTableData != NULL);
if (AcpiTableInfo->AcpiTableData == NULL) {
*Table = NULL;
return EFI_INVALID_PARAMETER;
}
*Table = AcpiTableInfo->AcpiTableData;
return EFI_SUCCESS;
}
/** This macro defines the Raw Generator revision.
*/
#define RAW_GENERATOR_REVISION CREATE_REVISION (1, 0)
/** The interface for the Raw Table Generator.
*/
STATIC
CONST
ACPI_TABLE_GENERATOR RawGenerator = {
// Generator ID
CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdRaw),
// Generator Description
L"ACPI.STD.RAW.GENERATOR",
// ACPI Table Signature - Unused
0,
// ACPI Table Revision - Unused
0,
// Minimum ACPI Table Revision - Unused
0,
// Creator ID
TABLE_GENERATOR_CREATOR_ID_ARM,
// Creator Revision
RAW_GENERATOR_REVISION,
// Build Table function
BuildRawTable,
// No additional resources are allocated by the generator.
// Hence the Free Resource function is not required.
NULL,
// Extended build function not needed
NULL,
// Extended build function not implemented by the generator.
// Hence extended free resource function is not required.
NULL
};
/** Register the Generator with the ACPI Table Factory.
@param [in] ImageHandle The handle to the image.
@param [in] SystemTable Pointer to the System Table.
@retval EFI_SUCCESS The Generator is registered.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_ALREADY_STARTED The Generator for the Table ID
is already registered.
**/
EFI_STATUS
EFIAPI
AcpiRawLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE * SystemTable
)
{
EFI_STATUS Status;
Status = RegisterAcpiTableGenerator (&RawGenerator);
DEBUG ((DEBUG_INFO, "RAW: Register Generator. Status = %r\n", Status));
ASSERT_EFI_ERROR (Status);
return Status;
}
/** Deregister the Generator from the ACPI Table Factory.
@param [in] ImageHandle The handle to the image.
@param [in] SystemTable Pointer to the System Table.
@retval EFI_SUCCESS The Generator is deregistered.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_NOT_FOUND The Generator is not registered.
**/
EFI_STATUS
EFIAPI
AcpiRawLibDestructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE * SystemTable
)
{
EFI_STATUS Status;
Status = DeregisterAcpiTableGenerator (&RawGenerator);
DEBUG ((DEBUG_INFO, "RAW: Deregister Generator. Status = %r\n", Status));
ASSERT_EFI_ERROR (Status);
return Status;
}
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