Date: Sun, 30 Jul 95 22:15:38 PDT From: schwarz@alpharel.com (Steve Schwarz) To: freebsd-bugs@freebsd.org, freebsd-hackers@freebsd.org, freebsd-hardware@freebsd.org, hosokawa@mt.cs.keio.ac.jp, jleppek@suw2k.ess.harris.com Subject: 3c589 card CAN be made to work BNC Message-ID: <9507310515.AA16043@optisun40.optigfx.COM>
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Ok. It's been a long weekend (note the time) but trial and error is
always like that. I >finally< have wrestled my 3c589 into working BNC.
I went over to the Linux 3c589_cs.c driver and read it (line by line)
against FreeBSD's /usr/src/sys/i386/isa/if_zp.c. In doing so, I
discovered some things Linux was doing that FreeBSD was not. This
leads to the following patch to FreeBSD's
/usr/src/sys/i386/isa/if_zp.c. My original of that source file came
from the 2.0.5 cdrom. Here is the single diff-section patch:
########################################################################
*** if_zp.c Mon Jul 31 00:47:22 1995
--- if_zp.c.orig Sun Jul 30 17:42:19 1995
***************
*** 1069,1082 ****
if (!(ifp->if_flags & IFF_ALTPHYS) && (sc->ep_connectors & BNC))
{
#endif
#ifdef ZP_DEBUG
! printf("START TRANSCEIVER");
#endif /* ZP_DEBUG */
- GO_WINDOW(0);
- /* Set the xcvr */
- outw(BASE + EP_W0_ADDRESS_CFG, 3 << 14);
- GO_WINDOW(2);
outw(BASE + EP_COMMAND, START_TRANSCEIVER);
- GO_WINDOW(1);
DELAY(1000);
}
#if defined(__NetBSD__) || defined(__FreeBSD__)
--- 1069,1077 ----
if (!(ifp->if_flags & IFF_ALTPHYS) && (sc->ep_connectors & BNC))
{
#endif
#ifdef ZP_DEBUG
! printf("START TRANCEIVER");
#endif /* ZP_DEBUG */
outw(BASE + EP_COMMAND, START_TRANSCEIVER);
DELAY(1000);
}
#if defined(__NetBSD__) || defined(__FreeBSD__)
########################################################################
This patch is not elegant but it is enough to make BNC work without
affecting UTP.
I confess to being a total novice as far as the procedure for
submitting bug fixes. If I have not given enough information for
someone to handle getting this fix in, please just let me know.
I can't resist quoting the comment from the Linux source file that
made me first think I had found the answer:
/* This is vital: the transceiver used must be set in the resource
configuration register. It took me many hours to discover this. */
I know the feeling.
sts
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