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/** @file
ACPI Table Factory
Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.
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.
@par Glossary:
- Std - Standard
**/
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Protocol/AcpiTable.h>
// Module specific include files.
#include <AcpiTableGenerator.h>
#include <ConfigurationManagerObject.h>
#include <Protocol/ConfigurationManagerProtocol.h>
#include <Protocol/DynamicTableFactoryProtocol.h>
#include "DynamicTableFactory.h"
extern EDKII_DYNAMIC_TABLE_FACTORY_INFO TableFactoryInfo;
/** Return a pointer to the ACPI table generator.
@param [in] This Pointer to the Dynamic Table Factory Protocol.
@param [in] GeneratorId The ACPI table generator ID for the
requested generator.
@param [out] Generator Pointer to the requested ACPI table
generator.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_NOT_FOUND The requested generator is not found
in the list of registered generators.
**/
EFI_STATUS
EFIAPI
GetAcpiTableGenerator (
IN CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL * CONST This,
IN CONST ACPI_TABLE_GENERATOR_ID GeneratorId,
OUT CONST ACPI_TABLE_GENERATOR ** CONST Generator
)
{
UINT16 TableId;
EDKII_DYNAMIC_TABLE_FACTORY_INFO * FactoryInfo;
ASSERT (This != NULL);
FactoryInfo = This->TableFactoryInfo;
if (Generator == NULL) {
DEBUG ((DEBUG_ERROR, "ERROR: Invalid Generator pointer\n"));
return EFI_INVALID_PARAMETER;
}
if (!IS_GENERATOR_TYPE_ACPI (GeneratorId)) {
DEBUG ((DEBUG_ERROR, "ERROR: Generator Type is not ACPI\n"));
return EFI_INVALID_PARAMETER;
}
*Generator = NULL;
TableId = GET_TABLE_ID (GeneratorId);
if (IS_GENERATOR_NAMESPACE_STD (GeneratorId)) {
if (TableId >= EStdAcpiTableIdMax) {
ASSERT (TableId < EStdAcpiTableIdMax);
return EFI_INVALID_PARAMETER;
}
if (FactoryInfo->StdAcpiTableGeneratorList[TableId] != NULL) {
*Generator = FactoryInfo->StdAcpiTableGeneratorList[TableId];
} else {
return EFI_NOT_FOUND;
}
} else {
if (TableId > FixedPcdGet16 (PcdMaxCustomACPIGenerators)) {
ASSERT (TableId <= FixedPcdGet16 (PcdMaxCustomACPIGenerators));
return EFI_INVALID_PARAMETER;
}
if (FactoryInfo->CustomAcpiTableGeneratorList[TableId] != NULL) {
*Generator = FactoryInfo->CustomAcpiTableGeneratorList[TableId];
} else {
return EFI_NOT_FOUND;
}
}
return EFI_SUCCESS;
}
/** Register ACPI table factory generator.
The ACPI table factory maintains a list of the Standard and OEM ACPI
table generators.
@param [in] Generator Pointer to the ACPI table generator.
@retval EFI_SUCCESS The Generator was registered
successfully.
@retval EFI_INVALID_PARAMETER The Generator ID is invalid or
the Generator pointer is NULL.
@retval EFI_ALREADY_STARTED The Generator for the Table ID is
already registered.
**/
EFI_STATUS
EFIAPI
RegisterAcpiTableGenerator (
IN CONST ACPI_TABLE_GENERATOR * CONST Generator
)
{
UINT16 TableId;
if (Generator == NULL) {
DEBUG ((DEBUG_ERROR, "ERROR: ACPI register - Invalid Generator\n"));
return EFI_INVALID_PARAMETER;
}
if (!IS_GENERATOR_TYPE_ACPI (Generator->GeneratorID)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: ACPI register - Generator" \
" Type is not ACPI\n"
));
return EFI_INVALID_PARAMETER;
}
DEBUG ((DEBUG_INFO, "Registering %s\n", Generator->Description));
TableId = GET_TABLE_ID (Generator->GeneratorID);
if (IS_GENERATOR_NAMESPACE_STD (Generator->GeneratorID)) {
if (TableId >= EStdAcpiTableIdMax) {
ASSERT (TableId < EStdAcpiTableIdMax);
return EFI_INVALID_PARAMETER;
}
if (TableFactoryInfo.StdAcpiTableGeneratorList[TableId] == NULL) {
TableFactoryInfo.StdAcpiTableGeneratorList[TableId] = Generator;
} else {
return EFI_ALREADY_STARTED;
}
} else {
if (TableId > FixedPcdGet16 (PcdMaxCustomACPIGenerators)) {
ASSERT (TableId <= FixedPcdGet16 (PcdMaxCustomACPIGenerators));
return EFI_INVALID_PARAMETER;
}
if (TableFactoryInfo.CustomAcpiTableGeneratorList[TableId] == NULL) {
TableFactoryInfo.CustomAcpiTableGeneratorList[TableId] = Generator;
} else {
return EFI_ALREADY_STARTED;
}
}
return EFI_SUCCESS;
}
/** Deregister ACPI generator.
This function is called by the ACPI table generator to deregister itself
from the ACPI table factory.
@param [in] Generator Pointer to the ACPI table generator.
@retval EFI_SUCCESS Success.
@retval EFI_INVALID_PARAMETER The generator is invalid.
@retval EFI_NOT_FOUND The requested generator is not found
in the list of registered generators.
**/
EFI_STATUS
EFIAPI
DeregisterAcpiTableGenerator (
IN CONST ACPI_TABLE_GENERATOR * CONST Generator
)
{
UINT16 TableId;
if (Generator == NULL) {
DEBUG ((DEBUG_ERROR, "ERROR: ACPI deregister - Invalid Generator\n"));
return EFI_INVALID_PARAMETER;
}
if (!IS_GENERATOR_TYPE_ACPI (Generator->GeneratorID)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: ACPI deregister - Generator" \
" Type is not ACPI\n"
));
return EFI_INVALID_PARAMETER;
}
TableId = GET_TABLE_ID (Generator->GeneratorID);
if (IS_GENERATOR_NAMESPACE_STD (Generator->GeneratorID)) {
if (TableId >= EStdAcpiTableIdMax) {
ASSERT (TableId < EStdAcpiTableIdMax);
return EFI_INVALID_PARAMETER;
}
if (TableFactoryInfo.StdAcpiTableGeneratorList[TableId] != NULL) {
if (Generator != TableFactoryInfo.StdAcpiTableGeneratorList[TableId]) {
return EFI_INVALID_PARAMETER;
}
TableFactoryInfo.StdAcpiTableGeneratorList[TableId] = NULL;
} else {
return EFI_NOT_FOUND;
}
} else {
if (TableId > FixedPcdGet16 (PcdMaxCustomACPIGenerators)) {
ASSERT (TableId <= FixedPcdGet16 (PcdMaxCustomACPIGenerators));
return EFI_INVALID_PARAMETER;
}
if (TableFactoryInfo.CustomAcpiTableGeneratorList[TableId] != NULL) {
if (Generator !=
TableFactoryInfo.CustomAcpiTableGeneratorList[TableId]) {
return EFI_INVALID_PARAMETER;
}
TableFactoryInfo.CustomAcpiTableGeneratorList[TableId] = NULL;
} else {
return EFI_NOT_FOUND;
}
}
DEBUG ((DEBUG_INFO, "Deregistering %s\n", Generator->Description));
return EFI_SUCCESS;
}
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