passing new.* in trigger

I must pass NEW row to function count_room(rowtype) as in this code, but
pgsql return "_ NEW used in query that is not in a rule".
I have a bad syntax or is impossible pass NEW.*?

thanks,  Ale

_
CREATE OR REPLACE FUNCTION public.dr_aggiorna_consistenze()
  RETURNS trigger AS
'
declare
room int;
BEGIN

SELECT INTO camere  count_room(NEW.*) FROM NEW ;
        NEW.camere = camere;
        RETURN NEW;
    END;
'
LANGUAGE 'plpgsql' VOLATILE;

--
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Alessandro Vincelli
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