Passing Arguments from INSERT / UPDATE to Trigger
Use NEW or OLD depending if you need the inserted or updated record.
Postgres documentation

When a PL/pgSQL function is called as a trigger, several special variables are created automatically in the top-level block. They are:
NEW
Data type RECORD; variable holding the new database row for INSERT/UPDATE operations in row-level triggers. This variable is unassigned in statement-level triggers and for DELETE operations.
OLD
Data type RECORD; variable holding the old database row for UPDATE/DELETE operations in row-level triggers. This variable is unassigned in statement-level triggers and for INSERT operations.

CREATE TRIGGER gerarconf
AFTER INSERT OR UPDATE
ON asterisk.fila
FOR EACH ROW
EXECUTE PROCEDURE asterisk.registra_gerar_conf_fila('FILA',NEW.column);