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Enhance this so it support the com port on the JavaStation 1 as well as 

the tadpole internal modem.
This commit is contained in:
matt 2000-07-15 19:57:03 +00:00
parent 83e844cf03
commit 1d97a430c4
1 changed files with 41 additions and 15 deletions
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56
sys/arch/sparc/dev/com_obio.c
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@ -1,4 +1,4 @@
/* $NetBSD: com_obio.c,v 1.6 2000/07/09 20:57:46 pk Exp $ */
/* $NetBSD: com_obio.c,v 1.7 2000/07/15 19:57:03 matt Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -98,6 +98,7 @@
struct com_obio_softc {
struct com_softc osc_com; /* real "com" softc */
int osc_tadpole; /* is this on a tadpole */
/* OBIO-specific goo. */
struct evcnt osc_intrcnt; /* interrupt counting */
};
@ -118,19 +119,35 @@ com_obio_match(parent, cf, aux)
{
union obio_attach_args *uoba = aux;
struct sbus_attach_args *sa = &uoba->uoba_sbus;
int tadpole = 0;
int need_probe = 0;
int rv = 0;
u_int8_t auxregval;
if (uoba->uoba_isobio4 != 0) {
return (0);
}
/* Tadpole 3GX/3GS uses "modem" for a 16450 port
* (We need to enable it before probing)
*/
if (strcmp("modem", sa->sa_name) == 0) {
bus_space_handle_t ioh;
int rv = 0;
u_int8_t auxregval = *AUXIO4M_REG;
*AUXIO4M_REG = auxregval | (AUXIO4M_LED|AUXIO4M_LTE);
auxregval = *AUXIO4M_REG;
*AUXIO4M_REG = auxregval | (AUXIO4M_LED|AUXIO4M_LTE);
DELAY(100);
tadpole = 1;
need_probe = 1;
}
/* Sun JavaStation 1 uses "su" for a 16550 port
*/
if (strcmp("su", sa->sa_name) == 0) {
need_probe = 1;
}
if (need_probe) {
bus_space_handle_t ioh;
if (sbus_bus_map(sa->sa_bustag, sa->sa_slot,
sa->sa_offset, sa->sa_size,
BUS_SPACE_MAP_LINEAR, 0,
@ -143,10 +160,13 @@ com_obio_match(parent, cf, aux)
#endif
bus_space_unmap(sa->sa_bustag, ioh, sa->sa_size);
}
*AUXIO4M_REG = auxregval;
return (rv);
}
return (0);
/* Disable the com port if tadpole */
if (tadpole)
*AUXIO4M_REG = auxregval;
return (rv);
}
static void
@ -159,6 +179,10 @@ com_obio_attach(parent, self, aux)
union obio_attach_args *uoba = aux;
struct sbus_attach_args *sa = &uoba->uoba_sbus;
if (strcmp("modem", sa->sa_name) == 0) {
osc->osc_tadpole = 1;
}
/*
* We're living on an obio that looks like an sbus slot.
*/
@ -173,15 +197,17 @@ com_obio_attach(parent, self, aux)
return;
}
*AUXIO4M_REG |= (AUXIO4M_LED|AUXIO4M_LTE);
do {
DELAY(100);
} while (!comprobe1(sc->sc_iot, sc->sc_ioh));
if (osc->osc_tadpole) {
*AUXIO4M_REG |= (AUXIO4M_LED|AUXIO4M_LTE);
do {
DELAY(100);
} while (!comprobe1(sc->sc_iot, sc->sc_ioh));
#if 0
printf("modem: attach: lcr=0x%02x iir=0x%02x\n",
bus_space_read_1(sc->sc_iot, sc->sc_ioh, 3),
bus_space_read_1(sc->sc_iot, sc->sc_ioh, 2));
printf("modem: attach: lcr=0x%02x iir=0x%02x\n",
bus_space_read_1(sc->sc_iot, sc->sc_ioh, 3),
bus_space_read_1(sc->sc_iot, sc->sc_ioh, 2));
#endif
}
sc->sc_frequency = COM_FREQ;
com_attach_subr(sc);