Date: Tue, 5 May 1998 18:23:10 +0200 (MDT) From: Matthias.Apitz@SOFTCON.de To: nate@mt.sri.com (Nate Williams), mobile@FreeBSD.ORG Subject: PCMCIA support for AVM Fritz!Card (ISDN) Message-ID: <9805051823.AA04883@kant.SOFTCON.de>
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I wrote the low level driver routines to get the ISDN PCMCIA
AVM Fritz!Card working for the i4b subsystem. It's running
fine and dial on demand PPP works too over the ISDN PCMCIA.
Here are the lines for the /etc/pccard.conf:
# AVM Fritz!Card (ISDN)
card "AVM" "ISDN A"
config 0x1 "isic0" 7
insert echo AVM Fritz!Card inserted
remove echo AVM Fritz!Card removed
To catch the first interrupt of the card I had to move the
call to splx(s) a little bit down in allocate_driver() in
pccard/pccard.c:
allocate_driver(struct slot *slt, struct dev_desc *desc)
{
...
err = drv->enable(devi);
/* splx(s); ap: old location */
/*
* If the enable functions returns no error, then the
* device has been successfully installed. If so, then
* attach it to the slot, otherwise free it and return
* the error.
*/
if (err)
remove_device(devi);
else
devi->running = 1;
splx(s); /* ap: moved down to catch all IRQs */
return(err);
}
Without this move the result is an "unfielded interrupt" for the
PCCARD irq in slot_irq_handler() because the devi->running isn't
set to 1. The card will not generate new interrupts because
the old one isn't handled.
matthias
--
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