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Send out a period of "0" if negotiating asynchronous transfers (offset = 0).

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A value of "255" used to be sent, and though it should not matter, there
appear to be a few devices that want both values to be zero for asynch.
This commit is contained in:
se 1996-08-05 19:39:51 +00:00
parent 9a97a6e776
commit b77a7fdf22
1 changed files with 14 additions and 5 deletions
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19
sys/pci/ncr.c
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@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: ncr.c,v 1.72 1996/05/03 21:01:38 phk Exp $
** $Id: ncr.c,v 1.73 1996/06/12 05:10:44 gpalmer Exp $
**
** Device driver for the NCR 53C810 PCI-SCSI-Controller.
**
@ -1254,7 +1254,7 @@ static void ncr_attach (pcici_t tag, int unit);
static char ident[] =
"\n$Id: ncr.c,v 1.72 1996/05/03 21:01:38 phk Exp $\n";
"\n$Id: ncr.c,v 1.73 1996/06/12 05:10:44 gpalmer Exp $\n";
static const u_long ncr_version = NCR_VERSION * 11
+ (u_long) sizeof (struct ncb) * 7
@ -5773,9 +5773,18 @@ void ncr_int_sir (ncb_p np)
/*
** Check against controller limits.
*/
fak = (4ul * per - 1) / np->ns_sync - 3;
if (ofs && (fak>7)) {chg = 1; ofs = 0;}
if (!ofs) fak=7;
if (ofs != 0) {
fak = (4ul * per - 1) / np->ns_sync - 3;
if (fak>7) {
chg = 1;
ofs = 0;
}
}
if (ofs == 0) {
fak = 7;
per = 0;
tp->minsync = 0;
}
if (DEBUG_FLAGS & DEBUG_NEGO) {
PRINT_ADDR(cp->xfer);