/*
* if we are a Commodore Amiga A4091 or possibly an A4000T
*/
int
afscmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
{
struct zbus_args *zap;
siop_regmap_p rp;
u_long temp, scratch;
zap = auxp;
if (zap->manid == 514 && zap->prodid == 84)
return(1); /* It's an A4091 SCSI card */
if (!is_a4000() || !matchname("afsc", auxp))
return(0); /* Not on an A4000 or not A4000T SCSI */
rp = ztwomap(0xdd0040);
if (badaddr((void *)__UNVOLATILE(&rp->siop_scratch)) ||
badaddr((void *)__UNVOLATILE(&rp->siop_temp))) {
return(0);
}
scratch = rp->siop_scratch;
temp = rp->siop_temp;
rp->siop_scratch = 0xdeadbeef;
rp->siop_temp = 0xaaaa5555;
if (rp->siop_scratch != 0xdeadbeef || rp->siop_temp != 0xaaaa5555)
return(0);
rp->siop_scratch = scratch;
rp->siop_temp = temp;
if (rp->siop_scratch != scratch || rp->siop_temp != temp)
return(0);
return(1);
}
int
wdc_amiga_probe(device_t parent, cfdata_t cfp, void *aux)
{
if ((!is_a4000() && !is_a1200() && !is_a600()) ||
!matchname(aux, "wdc"))
return(0);
return 1;
}
int
wdc_amiga_intr(void *arg)
{
struct wdc_amiga_softc *sc;
uint8_t intreq;
int ret;
sc = (struct wdc_amiga_softc *)arg;
ret = 0;
intreq = gayle_intr_status();
if (intreq & GAYLE_INT_IDE) {
if (!is_a4000())
gayle_intr_ack(0x7C | (intreq & GAYLE_INT_IDEACK));
ret = wdcintr(&sc->sc_channel);
}
return ret;
}
void
wdc_amiga_attach(device_t parent, device_t self, void *aux)
{
struct wdc_amiga_softc *sc = device_private(self);
struct wdc_regs *wdr;
int i;
aprint_normal("\n");
sc->sc_wdcdev.sc_atac.atac_dev = self;
sc->sc_wdcdev.regs = wdr = &sc->sc_wdc_regs;
gayle_init();
if (is_a4000()) {
sc->cmd_iot.base = (bus_addr_t) ztwomap(GAYLE_IDE_BASE_A4000 + 2);
} else {
sc->cmd_iot.base = (bus_addr_t) ztwomap(GAYLE_IDE_BASE + 2);
}
sc->cmd_iot.absm = sc->ctl_iot.absm = &amiga_bus_stride_4swap;
wdr->cmd_iot = &sc->cmd_iot;
wdr->ctl_iot = &sc->ctl_iot;
if (bus_space_map(wdr->cmd_iot, 0, 0x40, 0,
&wdr->cmd_baseioh)) {
aprint_error_dev(self, "couldn't map registers\n");
return;
}
for (i = 0; i < WDC_NREG; i++) {
if (bus_space_subregion(wdr->cmd_iot,
wdr->cmd_baseioh, i, i == 0 ? 4 : 1,
&wdr->cmd_iohs[i]) != 0) {
bus_space_unmap(wdr->cmd_iot,
wdr->cmd_baseioh, 0x40);
aprint_error_dev(self, "couldn't map registers\n");
return;
}
}
if (bus_space_subregion(wdr->cmd_iot,
wdr->cmd_baseioh, 0x406, 1, &wdr->ctl_ioh))
return;
sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16;
sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
sc->sc_chanlist[0] = &sc->sc_channel;
sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist;
sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
sc->sc_wdcdev.wdc_maxdrives = 2;
sc->sc_channel.ch_channel = 0;
sc->sc_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
sc->sc_channel.ch_queue = &sc->sc_chqueue;
wdc_init_shadow_regs(&sc->sc_channel);
sc->sc_isr.isr_intr = wdc_amiga_intr;
sc->sc_isr.isr_arg = sc;
sc->sc_isr.isr_ipl = 2;
add_isr (&sc->sc_isr);
if (!is_a4000())
gayle_intr_enable_set(GAYLE_INT_IDE);
wdcattach(&sc->sc_channel);
}