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Clear the ISDN TXPTR/RXPTR/OVRN interrupt bits here. Based on 

a suggestion by Gregory McGarry.
This commit is contained in:
thorpej 2000-07-18 06:10:06 +00:00
parent faaa100d6e
commit ea0cb4c30e
1 changed files with 17 additions and 9 deletions
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26
sys/arch/alpha/tc/ioasic.c
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@ -1,4 +1,4 @@
/* $NetBSD: ioasic.c,v 1.33 2000/07/11 04:10:25 nisimura Exp $ */
/* $NetBSD: ioasic.c,v 1.34 2000/07/18 06:10:06 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -68,7 +68,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: ioasic.c,v 1.33 2000/07/11 04:10:25 nisimura Exp $");
__KERNEL_RCSID(0, "$NetBSD: ioasic.c,v 1.34 2000/07/18 06:10:06 thorpej Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@ -305,29 +305,37 @@ ioasic_intr(val)
register struct ioasic_softc *sc = val;
register int ifound;
int gifound;
u_int32_t sir;
u_int32_t sir, osir;
gifound = 0;
do {
ifound = 0;
tc_syncbus();
sir = bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_INTR);
osir = sir =
bus_space_read_4(sc->sc_bst, sc->sc_bsh, IOASIC_INTR);
#define INCRINTRCNT(slot) ioasicintrs[slot].iai_evcnt.ev_count++
/* XXX DUPLICATION OF INTERRUPT BIT INFORMATION... */
#define CHECKINTR(slot, bits) \
#define CHECKINTR(slot, bits, clear) \
if (sir & (bits)) { \
ifound = 1; \
INCRINTRCNT(slot); \
(*ioasicintrs[slot].iai_func) \
(ioasicintrs[slot].iai_arg); \
if (clear) \
sir &= ~(bits); \
}
CHECKINTR(IOASIC_DEV_SCC0, IOASIC_INTR_SCC_0);
CHECKINTR(IOASIC_DEV_SCC1, IOASIC_INTR_SCC_1);
CHECKINTR(IOASIC_DEV_LANCE, IOASIC_INTR_LANCE);
CHECKINTR(IOASIC_DEV_ISDN, IOASIC_INTR_ISDN_TXLOAD | IOASIC_INTR_ISDN_RXLOAD);
CHECKINTR(IOASIC_DEV_SCC0, IOASIC_INTR_SCC_0, 0);
CHECKINTR(IOASIC_DEV_SCC1, IOASIC_INTR_SCC_1, 0);
CHECKINTR(IOASIC_DEV_LANCE, IOASIC_INTR_LANCE, 0);
CHECKINTR(IOASIC_DEV_ISDN, IOASIC_INTR_ISDN_TXLOAD |
IOASIC_INTR_ISDN_RXLOAD | IOASIC_INTR_ISDN_OVRUN, 1);
if (sir != osir)
bus_space_write_4(sc->sc_bst, sc->sc_bsh,
IOASIC_INTR, sir);
gifound |= ifound;
} while (ifound);