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List:       openbsd-mobile
Subject:    Re: OpenBSD-mobile: More on failed pc-card modems
From:       Kevin Steves <stevesk () pobox ! com>
Date:       2001-09-22 17:16:31
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On Wed, 5 Sep 2001, Jim Rees wrote:
> Ok, I have more info.
> 
> I know I'm not the only one having problems with pc-card modems.  The
> symptom is that the modem is recognized, but falsely reported as having a
> 16450 uart instead of 16550 (which they all have).  This can happen with
> almost any brand of modem.  In fact, I have two different samples of the
> same model of Megahertz 1144 modem, one of which exhibits the problem, the
> other does not.
> 
> The problem appears to be that 2.9 maps the devices to isa port base 0x23f8,
> where 2.8 used to map it to 0x3f8.  I am guessing that the manufacturer of
> these cards got lazy and left out a couple of address lines.  The pccom
> probe routine reads the IIR, which is all 0 because there isn't really
> anything mapped there, and assumes a 16450 uart.
> 
> So how can I get my pc-card modems mapped at 0x3f8?

i don't know.  as a datapoint, the following (an old motorola 28.8 from
around 1997) is working fine with -current:

pccom3 at pcmcia0 function 0 "Motorola, MONTANA V.34 FAX/MODEM, V2.0 !\^B\^B" port \
0x2f8/8: irq 3: ns16550a, 16 byte fifo


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