DeviceTreeTableFactory.c

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#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
 
// Module specific include files.
#include <DeviceTreeTableGenerator.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
GetDtTableGenerator (
  IN  CONST EDKII_DYNAMIC_TABLE_FACTORY_PROTOCOL  *CONST  This,
  IN  CONST DT_TABLE_GENERATOR_ID                         GeneratorId,
  OUT CONST DT_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_DT (GeneratorId)) {
    DEBUG ((DEBUG_ERROR, "ERROR: Generator Type is not DT\n"));
    return EFI_INVALID_PARAMETER;
  }
 
  *Generator = NULL;
  TableId    = GET_TABLE_ID (GeneratorId);
  if (IS_GENERATOR_NAMESPACE_STD (GeneratorId)) {
    if (TableId >= EStdDtTableIdMax) {
      ASSERT (TableId < EStdDtTableIdMax);
      return EFI_INVALID_PARAMETER;
    }
 
    if (FactoryInfo->StdDtTableGeneratorList[TableId] != NULL) {
      *Generator = FactoryInfo->StdDtTableGeneratorList[TableId];
    } else {
      return EFI_NOT_FOUND;
    }
  } else {
    if (TableId > FixedPcdGet16 (PcdMaxCustomDTGenerators)) {
      ASSERT (TableId <= FixedPcdGet16 (PcdMaxCustomDTGenerators));
      return EFI_INVALID_PARAMETER;
    }
 
    if (FactoryInfo->CustomDtTableGeneratorList[TableId] != NULL) {
      *Generator = FactoryInfo->CustomDtTableGeneratorList[TableId];
    } else {
      return EFI_NOT_FOUND;
    }
  }
 
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
RegisterDtTableGenerator (
  IN  CONST DT_TABLE_GENERATOR                *CONST  Generator
  )
{
  UINT16  TableId;
 
  if (Generator == NULL) {
    DEBUG ((DEBUG_ERROR, "ERROR: DT register - Invalid Generator\n"));
    return EFI_INVALID_PARAMETER;
  }
 
  if (!IS_GENERATOR_TYPE_DT (Generator->GeneratorID)) {
    DEBUG ((
      DEBUG_ERROR,
      "ERROR: DT register - Generator" \
      " Type is not DT\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 >= EStdDtTableIdMax) {
      ASSERT (TableId < EStdDtTableIdMax);
      return EFI_INVALID_PARAMETER;
    }
 
    if (TableFactoryInfo.StdDtTableGeneratorList[TableId] == NULL) {
      TableFactoryInfo.StdDtTableGeneratorList[TableId] = Generator;
    } else {
      return EFI_ALREADY_STARTED;
    }
  } else {
    if (TableId > FixedPcdGet16 (PcdMaxCustomDTGenerators)) {
      ASSERT (TableId <= FixedPcdGet16 (PcdMaxCustomDTGenerators));
      return EFI_INVALID_PARAMETER;
    }
 
    if (TableFactoryInfo.CustomDtTableGeneratorList[TableId] == NULL) {
      TableFactoryInfo.CustomDtTableGeneratorList[TableId] = Generator;
    } else {
      return EFI_ALREADY_STARTED;
    }
  }
 
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
DeregisterDtTableGenerator (
  IN  CONST DT_TABLE_GENERATOR                *CONST  Generator
  )
{
  UINT16  TableId;
 
  if (Generator == NULL) {
    DEBUG ((DEBUG_ERROR, "ERROR: DT deregister - Invalid Generator\n"));
    return EFI_INVALID_PARAMETER;
  }
 
  if (!IS_GENERATOR_TYPE_DT (Generator->GeneratorID)) {
    DEBUG ((
      DEBUG_ERROR,
      "ERROR: DT deregister - Generator" \
      " Type is not DT\n"
      ));
    return EFI_INVALID_PARAMETER;
  }
 
  TableId = GET_TABLE_ID (Generator->GeneratorID);
  if (IS_GENERATOR_NAMESPACE_STD (Generator->GeneratorID)) {
    if (TableId >= EStdDtTableIdMax) {
      ASSERT (TableId < EStdDtTableIdMax);
      return EFI_INVALID_PARAMETER;
    }
 
    if (TableFactoryInfo.StdDtTableGeneratorList[TableId] != NULL) {
      if (Generator != TableFactoryInfo.StdDtTableGeneratorList[TableId]) {
        return EFI_INVALID_PARAMETER;
      }
 
      TableFactoryInfo.StdDtTableGeneratorList[TableId] = NULL;
    } else {
      return EFI_NOT_FOUND;
    }
  } else {
    if (TableId > FixedPcdGet16 (PcdMaxCustomDTGenerators)) {
      ASSERT (TableId <= FixedPcdGet16 (PcdMaxCustomDTGenerators));
      return EFI_INVALID_PARAMETER;
    }
 
    if (TableFactoryInfo.CustomDtTableGeneratorList[TableId] != NULL) {
      if (Generator !=
          TableFactoryInfo.CustomDtTableGeneratorList[TableId])
      {
        return EFI_INVALID_PARAMETER;
      }
 
      TableFactoryInfo.CustomDtTableGeneratorList[TableId] = NULL;
    } else {
      return EFI_NOT_FOUND;
    }
  }
 
  DEBUG ((DEBUG_INFO, "Deregistering %s\n", Generator->Description));
  return EFI_SUCCESS;
}