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The interrupt handler uses the softc, so it's probably a good idea to 

initialize it before causing interrupts. Prevents a panic on VAXstation
4000/9x with SPX console.
This commit is contained in:
hans 2010-05-09 22:29:26 +00:00
parent 36cce634e3
commit 10e151e52e
1 changed files with 12 additions and 12 deletions
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24
sys/dev/dec/dz.c
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@ -1,4 +1,4 @@
/* $NetBSD: dz.c,v 1.38 2008/09/08 23:36:54 gmcgarry Exp $ */
/* $NetBSD: dz.c,v 1.39 2010/05/09 22:29:26 hans Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dz.c,v 1.38 2008/09/08 23:36:54 gmcgarry Exp $");
__KERNEL_RCSID(0, "$NetBSD: dz.c,v 1.39 2010/05/09 22:29:26 hans Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -204,16 +204,7 @@ dzattach(struct dz_softc *sc, struct evcnt *parent_evcnt, int consline)
{
int n;
sc->sc_rxint = sc->sc_brk = 0;
sc->sc_consline = consline;
sc->sc_dr.dr_tcrw = sc->sc_dr.dr_tcr;
dz_write2(sc, sc->sc_dr.dr_csr, DZ_CSR_MSE | DZ_CSR_RXIE | DZ_CSR_TXIE);
dz_write1(sc, sc->sc_dr.dr_dtr, 0);
dz_write1(sc, sc->sc_dr.dr_break, 0);
DELAY(10000);
/* Initialize our softc structure. Should be done in open? */
/* Initialize our softc structure. */
for (n = 0; n < sc->sc_type; n++) {
sc->sc_dz[n].dz_sc = sc;
@ -231,6 +222,15 @@ dzattach(struct dz_softc *sc, struct evcnt *parent_evcnt, int consline)
cn_set_magic("\047\001"); /* default magic is BREAK */
/* VAX will change it in MD code */
sc->sc_rxint = sc->sc_brk = 0;
sc->sc_consline = consline;
sc->sc_dr.dr_tcrw = sc->sc_dr.dr_tcr;
dz_write2(sc, sc->sc_dr.dr_csr, DZ_CSR_MSE | DZ_CSR_RXIE | DZ_CSR_TXIE);
dz_write1(sc, sc->sc_dr.dr_dtr, 0);
dz_write1(sc, sc->sc_dr.dr_break, 0);
DELAY(10000);
/* Alas no interrupt on modem bit changes, so we manually scan */
if (dz_timer == 0) {
dz_timer = 1;