pcbb: edge and pulse interrupts

[Alexey Dobriyan <adobriyan_(_at_)_gmail_(_dot_)_com>]

sys/dev/pci/pccbb.c:
  2868	void *
  2869	pccbb_pcmcia_intr_establish(pch, pf, ipl, func, arg, xname)

  2876	{
  2877		struct pcic_handle *ph = (struct pcic_handle *)pch;
  2878		struct pccbb_softc *sc = (struct pccbb_softc *)ph->ph_parent;
  2879
  2880	===>	if (!(pf->cfe->flags & PCMCIA_CFE_IRQLEVEL)) {		<===
  2881			/* what should I do? */
  2882	===>		if (pf->cfe->flags & PCMCIA_CFE_IRQLEVEL) {	<===
  2883				DPRINTF(
  2884				    ("%s does not provide edge nor pulse interrupt\n",
  2885				    sc->sc_dev.dv_xname));
  2886				return NULL;
  2887			}
  2888			/*
  2889			 * XXX Noooooo!  The interrupt flag must set properly!!
  2890			 * dumb pcmcia driver!!
  2891			 */
  2892		}
  2893
  2894		return pccbb_intr_establish(sc, IST_LEVEL, ipl, func, arg);
  2895	}

Judging by debug text and PCMCIA_CFE_* defines, second check should be

	if (!(pf->cfe->flags & PCMCIA_CFE_IRQPULSE))

Judging by expected logic here, checks should be consolidated via

	if (!(flags & LEVEL) && !(flags && PULSE)) {
		DPRINTF
		return NULL;
	}

Can someone confirm or deny?