AcpiTableFactory.c

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#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;
 
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;
}
 
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;
}
 
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;
}