[PATCH] w6692.c/h not to hang up after IRQ LOOP

[Jarkko Hakala]

I have had constant problems with Telewell's ISDN card hanging the
connection and telling about "IRQ LOOP". The only fix for that was
reloading of the hisax-module. Some surfing showed that this seems to be
quite common, but not with W6692-based cards from other manufacturers.

So, this patch does some resetting for card after the Irq loop. For me it
works, but I don't know if this causes some new problems for non-Telewell
cards or for other combinations of hardware or on whatever other cases.

diff -uNr linux-2.4.12.orig/drivers/isdn/hisax/w6692.c
linux-2.4.12/drivers/isdn/hisax/w6692.c
--- linux-2.4.12.orig/drivers/isdn/hisax/w6692.c        Sun Sep 30
22:26:06 2001
+++ linux-2.4.12/drivers/isdn/hisax/w6692.c     Tue Oct 16 01:36:57 2001
@@ -555,7 +555,7 @@
        }
        if (!icnt) {
                printk(KERN_WARNING "W6692 IRQ LOOP\n");
-               cs->writeW6692(cs, W_IMASK, 0xff);
+               initW6692(cs, 2);
        }
 }

diff -uNr linux-2.4.12.orig/drivers/isdn/hisax/w6692.h
linux-2.4.12/drivers/isdn/hisax/w6692.h
--- linux-2.4.12.orig/drivers/isdn/hisax/w6692.h        Sun Sep 30
22:26:06 2001
+++ linux-2.4.12/drivers/isdn/hisax/w6692.h     Tue Oct 16 01:36:02 2001
@@ -182,3 +182,6 @@
 /* FIFO thresholds */
 #define W_D_FIFO_THRESH        64
 #define W_B_FIFO_THRESH        64
+
+void __init initW6692(struct IsdnCardState *cs, int part);
+

My first posting, sorry if the patch-format is malformatted in some way
or if it causes your harddrive to crash and your dog to bite you. I
already found out that I can't post from an e-mail account which is not
subscribed, pissed of so I might bite your dog also.. blah

Jarkko Hakala