static struct cac_ccb *
cac_pci_l0_completed(struct cac_softc *sc)
{
struct cac_ccb *ccb;
u_int32_t off;
if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU)
return (NULL);
cac_outl(sc, CAC_42REG_DONE_FIFO, 0);
if ((off & 3) != 0)
printf("%s: failed command list returned: %lx\n",
device_xname(sc->sc_dev), (long)off);
off = (off & ~3) - sc->sc_ccbs_paddr;
ccb = (struct cac_ccb *)((char *)sc->sc_ccbs + off);
bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb),
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
if ((off & 3) != 0 && ccb->ccb_req.error == 0)
ccb->ccb_req.error = CAC_RET_CMD_REJECTED;
return (ccb);
}
static struct cac_ccb *
cac_l0_completed(struct cac_softc *sc)
{
struct cac_ccb *ccb;
paddr_t off;
KASSERT(mutex_owned(&sc->sc_mutex));
if ((off = cac_inl(sc, CAC_REG_DONE_FIFO)) == 0)
return (NULL);
if ((off & 3) != 0)
aprint_error_dev(sc->sc_dev, "failed command list returned: %lx\n",
(long)off);
off = (off & ~3) - sc->sc_ccbs_paddr;
ccb = (struct cac_ccb *)((char *)sc->sc_ccbs + off);
bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb),
BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
if ((off & 3) != 0 && ccb->ccb_req.error == 0)
ccb->ccb_req.error = CAC_RET_CMD_REJECTED;
return (ccb);
}
static int
cac_l0_intr_pending(struct cac_softc *sc)
{
KASSERT(mutex_owned(&sc->sc_mutex));
return (cac_inl(sc, CAC_REG_INTR_PENDING) & CAC_INTR_ENABLE);
}
static int
cac_l0_fifo_full(struct cac_softc *sc)
{
KASSERT(mutex_owned(&sc->sc_mutex));
return (cac_inl(sc, CAC_REG_CMD_FIFO) == 0);
}
static int
cac_pci_l0_fifo_full(struct cac_softc *sc)
{
return (cac_inl(sc, CAC_42REG_CMD_FIFO) != 0);
}
static int
cac_pci_l0_intr_pending(struct cac_softc *sc)
{
return ((cac_inl(sc, CAC_42REG_STATUS) & CAC_42_EXTINT) != 0);
}