static int
iifun(int slot, int sr)
{
isa_intr_info_t *iinfo_p;
int s;
iinfo_p = &iinfo[slot];
/*
* Disable the interrupts
*/
if (slot == 0) {
single_inst_bclr_b(MFP->mf_imrb, IB_ISA1);
}
else {
single_inst_bclr_b(MFP->mf_imra, IA_ISA2);
}
if ((sr & PSL_IPL) >= (iinfo_p->ipl & PSL_IPL)) {
/*
* We're running at a too high priority now.
*/
add_sicallback((si_farg)iifun, (void*)slot, 0);
}
else {
s = splx(iinfo_p->ipl);
if (slot == 0) {
do {
MFP->mf_iprb = (u_int8_t)~IB_ISA1;
(void) (iinfo_p->ifunc)(iinfo_p->iarg);
} while (MFP->mf_iprb & IB_ISA1);
single_inst_bset_b(MFP->mf_imrb, IB_ISA1);
}
else {
do {
MFP->mf_ipra = (u_int8_t)~IA_ISA2;
(void) (iinfo_p->ifunc)(iinfo_p->iarg);
} while (MFP->mf_ipra & IA_ISA2);
single_inst_bset_b(MFP->mf_imra, IA_ISA2);
}
splx(s);
}
return 1;
}
void
drsc_handler(void)
{
struct siop_softc *sc = drsc_softc;
siop_regmap_p rp;
int istat;
if (sc->sc_flags & SIOP_INTSOFF)
return; /* interrupts are not active */
rp = sc->sc_siopp;
istat = rp->siop_istat;
if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0)
return;
/*
* save interrupt status, DMA status, and SCSI status 0
* (may need to deal with stacked interrupts?)
*/
sc->sc_sstat0 = rp->siop_sstat0;
sc->sc_istat = istat;
sc->sc_dstat = rp->siop_dstat;
/*
* disable interrupts until the callback can process this
* interrupt.
*/
#ifdef DRSC_NOCALLBACK
(void)spl1();
siopintr(sc);
#else
rp->siop_sien = 0;
rp->siop_dien = 0;
sc->sc_flags |= SIOP_INTDEFER | SIOP_INTSOFF;
single_inst_bclr_b(*draco_intpen, DRIRQ_SCSI);
#ifdef DEBUG
if (*draco_intpen & DRIRQ_SCSI)
printf("%s: intpen still 0x%x\n", sc->sc_dev.dv_xname,
*draco_intpen);
#endif
add_sicallback((sifunc_t)siopintr, sc, NULL);
#endif
return;
}
void
drscattach(struct device *pdp, struct device *dp, void *auxp)
{
struct siop_softc *sc = (struct siop_softc *)dp;
struct zbus_args *zap;
siop_regmap_p rp;
struct scsipi_adapter *adapt = &sc->sc_adapter;
struct scsipi_channel *chan = &sc->sc_channel;
printf("\n");
zap = auxp;
sc->sc_siopp = rp = (siop_regmap_p)(DRCCADDR+PAGE_SIZE*DRSCSIPG);
/*
* CTEST7 = TT1
*/
sc->sc_clock_freq = 50; /* Clock = 50MHz */
sc->sc_ctest7 = 0x02;
alloc_sicallback();
/*
* Fill in the scsipi_adapter.
*/
memset(adapt, 0, sizeof(*adapt));
adapt->adapt_dev = &sc->sc_dev;
adapt->adapt_nchannels = 1;
adapt->adapt_openings = 7;
adapt->adapt_max_periph = 1;
adapt->adapt_request = siop_scsipi_request;
adapt->adapt_minphys = siop_minphys;
/*
* Fill in the scsipi_channel.
*/
memset(chan, 0, sizeof(*chan));
chan->chan_adapter = adapt;
chan->chan_bustype = &scsi_bustype;
chan->chan_channel = 0;
chan->chan_ntargets = 8;
chan->chan_nluns = 8;
chan->chan_id = 7;
siopinitialize(sc);
#if 0
sc->sc_isr.isr_intr = drsc_dmaintr;
sc->sc_isr.isr_arg = sc;
sc->sc_isr.isr_ipl = 4;
add_isr(&sc->sc_isr);
#else
drsc_softc = sc;
single_inst_bclr_b(*draco_intpen, DRIRQ_SCSI);
single_inst_bset_b(*draco_intena, DRIRQ_SCSI);
#endif
/*
* attach all scsi units on us
*/
config_found(dp, chan, scsiprint);
}
void
drscattach(device_t parent, device_t self, void *aux)
{
struct siop_softc *sc = device_private(self);
siop_regmap_p rp;
struct scsipi_adapter *adapt = &sc->sc_adapter;
struct scsipi_channel *chan = &sc->sc_channel;
printf("\n");
sc->sc_dev = self;
sc->sc_siopp = rp = (siop_regmap_p)(DRCCADDR+PAGE_SIZE*DRSCSIPG);
/*
* CTEST7 = TT1
*/
sc->sc_clock_freq = 50; /* Clock = 50MHz */
sc->sc_ctest7 = 0x02;
sc->sc_siop_si = softint_establish(SOFTINT_BIO,
(void (*)(void *))siopintr, sc);
/*
* Fill in the scsipi_adapter.
*/
memset(adapt, 0, sizeof(*adapt));
adapt->adapt_dev = self;
adapt->adapt_nchannels = 1;
adapt->adapt_openings = 7;
adapt->adapt_max_periph = 1;
adapt->adapt_request = siop_scsipi_request;
adapt->adapt_minphys = siop_minphys;
/*
* Fill in the scsipi_channel.
*/
memset(chan, 0, sizeof(*chan));
chan->chan_adapter = adapt;
chan->chan_bustype = &scsi_bustype;
chan->chan_channel = 0;
chan->chan_ntargets = 8;
chan->chan_nluns = 8;
chan->chan_id = 7;
siopinitialize(sc);
#if 0
sc->sc_isr.isr_intr = drsc_dmaintr;
sc->sc_isr.isr_arg = sc;
sc->sc_isr.isr_ipl = 4;
add_isr(&sc->sc_isr);
#else
drsc_softc = sc;
single_inst_bclr_b(*draco_intpen, DRIRQ_SCSI);
single_inst_bset_b(*draco_intena, DRIRQ_SCSI);
#endif
/*
* attach all scsi units on us
*/
config_found(self, chan, scsiprint);
}
