int
iavc_b1dma_detect(iavc_softc_t *sc)
{
AMCC_WRITE(sc, AMCC_MCSR, 0);
DELAY(10*1000);
AMCC_WRITE(sc, AMCC_MCSR, 0x0f000000);
DELAY(10*1000);
AMCC_WRITE(sc, AMCC_MCSR, 0);
DELAY(42*1000);
AMCC_WRITE(sc, AMCC_RXLEN, 0);
AMCC_WRITE(sc, AMCC_TXLEN, 0);
sc->sc_csr = 0;
AMCC_WRITE(sc, AMCC_INTCSR, sc->sc_csr);
if (AMCC_READ(sc, AMCC_INTCSR) != 0)
return 1;
AMCC_WRITE(sc, AMCC_RXPTR, 0xffffffff);
AMCC_WRITE(sc, AMCC_TXPTR, 0xffffffff);
if ((AMCC_READ(sc, AMCC_RXPTR) != 0xfffffffc) ||
(AMCC_READ(sc, AMCC_TXPTR) != 0xfffffffc))
return 2;
AMCC_WRITE(sc, AMCC_RXPTR, 0);
AMCC_WRITE(sc, AMCC_TXPTR, 0);
if ((AMCC_READ(sc, AMCC_RXPTR) != 0) ||
(AMCC_READ(sc, AMCC_TXPTR) != 0))
return 3;
iavc_write_port(sc, 0x10, 0x00);
iavc_write_port(sc, 0x07, 0x00);
iavc_write_port(sc, 0x02, 0x02);
iavc_write_port(sc, 0x03, 0x02);
if (((iavc_read_port(sc, 0x02) & 0xfe) != 0x02) ||
(iavc_read_port(sc, 0x03) != 0x03))
return 4;
iavc_write_port(sc, 0x02, 0x00);
iavc_write_port(sc, 0x03, 0x00);
if (((iavc_read_port(sc, 0x02) & 0xfe) != 0x00) ||
(iavc_read_port(sc, 0x03) != 0x01))
return 5;
return (0); /* found */
}
int b1_detect(iavc_softc_t *sc)
{
if ((iavc_read_port(sc, B1_INSTAT) & 0xfc) ||
(iavc_read_port(sc, B1_OUTSTAT) & 0xfc))
return (1);
b1io_outp(sc, B1_INSTAT, 0x02);
b1io_outp(sc, B1_OUTSTAT, 0x02);
if ((iavc_read_port(sc, B1_INSTAT) & 0xfe) != 2 ||
(iavc_read_port(sc, B1_OUTSTAT) & 0xfe) != 2)
return (2);
b1io_outp(sc, B1_INSTAT, 0x00);
b1io_outp(sc, B1_OUTSTAT, 0x00);
if ((iavc_read_port(sc, B1_INSTAT) & 0xfe) ||
(iavc_read_port(sc, B1_OUTSTAT) & 0xfe))
return (3);
return (0); /* found */
}
static int
iavc_isa_probe(device_t dev)
{
struct iavc_softc *sc;
int ret = ENXIO;
int unit = device_get_unit(dev);
if(isa_get_vendorid(dev)) /* no PnP probes here */
return ENXIO;
/* check max unit range */
if (unit >= IAVC_MAXUNIT)
{
kprintf("iavc%d: too many units\n", unit);
return(ENXIO);
}
sc = iavc_find_sc(unit); /* get softc */
sc->sc_unit = unit;
if (!(sc->sc_resources.io_base[0] =
bus_alloc_resource(dev, SYS_RES_IOPORT,
&sc->sc_resources.io_rid[0],
0UL, ~0UL, B1_IOLENGTH, RF_ACTIVE)))
{
kprintf("iavc%d: can't allocate io region\n", unit);
return(ENXIO);
}
sc->sc_iobase = rman_get_start(sc->sc_resources.io_base[0]);
switch(sc->sc_iobase)
{
case 0x150:
case 0x250:
case 0x300:
case 0x340:
break;
default:
kprintf("iavc%d: ERROR, invalid i/o base addr 0x%x configured!\n", sc->sc_unit, sc->sc_iobase);
bus_release_resource(dev, SYS_RES_IOPORT,
sc->sc_resources.io_rid[0],
sc->sc_resources.io_base[0]);
return(ENXIO);
}
sc->sc_io_bt = rman_get_bustag(sc->sc_resources.io_base[0]);
sc->sc_io_bh = rman_get_bushandle(sc->sc_resources.io_base[0]);
/* setup characteristics */
sc->sc_t1 = FALSE;
sc->sc_dma = FALSE;
sc->sc_capi.card_type = CARD_TYPEC_AVM_B1_ISA;
sc->sc_capi.sc_nbch = 2;
b1_reset(sc);
DELAY(100);
ret = b1_detect(sc);
if(ret)
{
kprintf("iavc%d: no card ? b1_detect returns %0x02x\n", sc->sc_unit, ret);
return(ENXIO);
}
DELAY(100);
b1_reset(sc);
DELAY(100);
if(bootverbose)
{
kprintf("iavc%d: class = 0x%02x, rev = 0x%02x\n", sc->sc_unit,
iavc_read_port(sc, B1_ANALYSE),
iavc_read_port(sc, B1_REVISION));
}
device_set_desc(dev, "AVM B1 ISA");
return(0);
}
