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Added fix from Jasper Wallace th=at solves the bus hang ups caused when 

DMA to the card going wrong.
This commit is contained in:
mark 1996-10-30 01:50:01 +00:00
parent f9d54194d5
commit de6db9f206
1 changed files with 25 additions and 7 deletions
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32
sys/arch/arm32/podulebus/if_eh.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: if_eh.c,v 1.12 1996/10/29 23:53:01 mark Exp $ */
/* $NetBSD: if_eh.c,v 1.13 1996/10/30 01:50:01 mark Exp $ */
/*
* Copyright (c) 1995 Melvin Tang-Richardson.
@ -718,23 +718,31 @@ eh_ensure_dma_completed(sc, type)
struct eh_softc *sc;
int type;
{
register int status = GetReg ( EH_COMMAND );
register int status = GetReg(EH_COMMAND);
register int s;
s = splhigh(); /* XXX - jasper */
if ( (status&COM_ABORT)==0 ) {
if ((status&COM_ABORT)==0) {
int dummy=0;
printf ( "EHDEBUG: Remote %d wasn't finished\n", type );
SetReg ( EH_COMMAND, status|COM_ABORT );
switch ( type ) {
printf("EHDEBUG: Remote %d wasn't finished : spl level %d\n", type, s);
SetReg(EH_COMMAND, status|COM_ABORT);
printf("EHDEBUG: SetReg done : status %d : type %d\n", status, type);
switch(type) {
case COM_READ:
dummy = GetReg ( EH_DATA_PORT );
break;
case COM_WRITE:
SetReg ( EH_DATA_PORT, dummy );
printf ( "EHDEBUG: COM_WRITE : About to SetReg ( EH_DATA_PORT, dummy );\n" );
/*SetReg ( EH_DATA_PORT, dummy );*/
break;
default:
printf("EHDEBUG: default : type = %d\n", type);
}
ehinit (sc);
splx(s); /* XXX - jasper */
return 1;
}
splx(s); /* XXX - jasper */
return 0;
}
@ -871,6 +879,9 @@ ehinit(sc)
{
int card_freestart;
int counter;
register int s;
s = splhigh(); /* XXX - jasper */
PAGE(0);
@ -893,6 +904,7 @@ ehinit(sc)
card_freestart, sc->sc_physstart );
sc->sc_arpcom.ac_if.if_flags &= ~IFF_RUNNING;
sc->sc_arpcom.ac_if.if_flags |= IFF_OACTIVE;
splx(s); /* XXX -japser */
return;
}
@ -969,6 +981,7 @@ ehinit(sc)
sc->sc_arpcom.ac_if.if_flags &= ~IFF_OACTIVE;
ehstart(&sc->sc_arpcom.ac_if);
splx(s); /* XXX -japser */
}
int
@ -1182,6 +1195,9 @@ ehintr(arg)
struct eh_softc *sc = arg;
register int isr = GetReg ( EH_ISR ); /* Is char of int faster ? */
register int times = 0;
register int s;
s = splhigh(); /* XXX -jasper */
PAGE(0);
@ -1203,6 +1219,7 @@ ehintr(arg)
printf ( "\n" );
INTR_ACK ( ISR_RXE );
ehinit (sc);
splx(s); /* XXX - jasper */
return 0;
}
@ -1275,6 +1292,7 @@ ehintr(arg)
if ( (isr&GetReg(EH_IMR))!=0 )
printf ( "eh: Interrupt not serviced\n" );
splx(s); /* XXX - jasper */
return 0;
}