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Date:      Thu, 6 Jul 2000 09:16:30 -0700 (PDT)
From:      =?ISO-8859-1?Q?Mikko_Ty=F6l=E4j=E4rvi?= <mikko@dynas.se>
To:        Warner Losh <imp@village.org>
Cc:        Paul Saab <paul@mu.org>, Marc Fonvieille <fonvi@easynet.fr>, freebsd-mobile@FreeBSD.ORG
Subject:   Re: Netgear FA410TX - Some progress (Patch included) 
Message-ID:  <Pine.BSF.4.21.0007060909340.64730-100000@explorer.rsa.com>
In-Reply-To: <200007052213.QAA44312@harmony.village.org>

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On Wed, 5 Jul 2000, Warner Losh wrote:

> In message <Pine.BSF.4.21.0007020112340.377-100000@shiba.smateo1.sfba.home.com> =?ISO-8859-1?Q?Mikko_Ty=F6l=E4j=E4rvi?= writes:
> : - Have a look at the Linux code I stole (pcnet_cs.c from
> :   pcmcia.sourceforge.net) - there is code dealing with full-duplex
> :   links in there too.  Or better yet - somehow get the specs and
> :   figure out how everything really should be done :-)
> : 
> : - What about media selection?  As the "fa_select" program shows,
> :   these cards support it, but there is no trace of media selction
> :   in if_ed.c.
> : 
> : - I have problems using the interface directly after it has been
> :   ifconfig:ed - I had to increase some sleep times in dhclient-script
> :   in order for dhcp to work reliably (at least when using fixed leases
> :   on networks w/o a server).
> 
> Is this a real MII bus?  If so, it may make sense to use that code.

Looks like it.  David Hinds (who maintains the Linux driver) just sent
me the specs for the D-Link DL10019C chip used in (older?) revisions
of this card (and some others).  In the intro it says:

 DL10019C is a high performance single chip Ethernet controller
 ASIC. It is designed specially for the implementation of a 100M/10M
 Ethernet PCMCIA/ISA-PnP compatible Ethernet NIC.  It contains a
 patented protocol circuit that handles the functions of IEEE 802.3
 standard and a host interface circuit.  All glue circuits are
 included into the chip. For 10M application, DL10019C can be
 connected to AT&T's T7213 DISC , NS's DP83910 SNI or AMD's Am7992 SIA
 directly, and all frontend transceivers which support MII (Media
 Independent Interface) such as NS's DP83840, MicroLinear's ML6692
 TDK's 78Q2120, ICS's ICS1890 and Level-One's LXT970, can be connected
 to DL10019C for 100M implementation directly.

Sadly, the information on the newer chip (DL10022) apparently comes
from disassembling a DOS driver...

     /Mikko

 Mikko Työläjärvi_______________________________________mikko@rsasecurity.com
 RSA Security



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