diff options
| author | Jason Wright <jason@cvs.openbsd.org> | 2001-07-17 18:27:53 +0000 |
|---|---|---|
| committer | Jason Wright <jason@cvs.openbsd.org> | 2001-07-17 18:27:53 +0000 |
| commit | 3b71b310858d1d1a9185234b92e14d7c7fcfa9ee (patch) | |
| tree | 21357bd79521ed3492ff4b40d0d758842ed135ec | |
| parent | 647859390a1ca0de0e2072a48c299a3d66ce72f5 (diff) | |
don't bother mapping the status registers, we don't use it.
| -rw-r--r-- | sys/dev/isa/addcom_isa.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/sys/dev/isa/addcom_isa.c b/sys/dev/isa/addcom_isa.c index 9dfd2c1bd13..251b2508573 100644 --- a/sys/dev/isa/addcom_isa.c +++ b/sys/dev/isa/addcom_isa.c @@ -1,4 +1,4 @@ -/* $OpenBSD: addcom_isa.c,v 1.1 2001/07/17 01:32:18 jason Exp $ */ +/* $OpenBSD: addcom_isa.c,v 1.2 2001/07/17 18:27:52 jason Exp $ */ /* $NetBSD: addcom_isa.c,v 1.2 2000/04/21 20:13:41 explorer Exp $ */ /* @@ -45,6 +45,10 @@ * io base address, so only one of these cards can ever be used at * a time. * + * NOTE: the status register does not appear to work as advertised, + * so instead we depend on the slave devices being intelligent enough + * to determine whether they interrupted or not. + * * This card is different from the boca or other cards in that ports * 0..5 are from addresses 0x108..0x137, and 6..7 are from 0x200..0x20f, * making a gap that the other cards do not have. @@ -87,7 +91,6 @@ struct addcom_softc { int sc_alive; /* mask of slave units attached */ void *sc_slaves[NSLAVES]; /* com device unit numbers */ bus_space_handle_t sc_slaveioh[NSLAVES]; - bus_space_handle_t sc_statusioh; }; #define SLAVE_IOBASE_OFFSET 0x108 @@ -199,12 +202,6 @@ addcomattach(parent, self, aux) sc->sc_iot = ia->ia_iot; sc->sc_iobase = ia->ia_iobase; - if (bus_space_map(iot, STATUS_IOADDR, STATUS_SIZE, - 0, &sc->sc_statusioh)) { - printf("%s: can't map status space\n", sc->sc_dev.dv_xname); - return; - } - for (i = 0; i < NSLAVES; i++) { iobase = sc->sc_iobase + slave_iobases[i] |