Function DTLookupEntry

Library/DeviceTreeLib/DeviceTreeLib.c:174–222

//

EFI_STATUS
DTLookupEntry (
  IN CONST DTEntry       SearchPoint,
  IN CONST CHAR8         *PathName,
  IN DTEntry             *FoundEntry
  )
{
  DTEntryNameBuf  Buf;
  DTEntry         Cur;
  CONST CHAR8     *Cp;

  if (mDTRootNode == NULL) {
    return EFI_INVALID_PARAMETER;
  }

  if (SearchPoint == NULL) {
    Cur = mDTRootNode;
  } else {
    Cur = SearchPoint;
  }

  Cp = PathName;
  if (*Cp == DT_PATH_NAME_SEPARATOR) {
    Cp++;
    if (*Cp == '\0') {
      *FoundEntry = Cur;
      return EFI_SUCCESS;
    }
  }

  do {
    Cp = GetNextComponent (Cp, Buf);

    //
    // Check for done.
    //
    if (*Buf == '\0') {
      if (*Cp == '\0') {
        *FoundEntry = Cur;
        return EFI_SUCCESS;
      }
      break;
    }

    Cur = FindChild (Cur, Buf);
  } while (Cur != NULL);

  return EFI_INVALID_PARAMETER;
}

EFI_STATUS
DTCreateEntryIterator (