Date: Mon, 19 Apr 1999 19:38:31 +0200 (SAT) From: John Hay <jhay@mikom.csir.co.za> To: dfr@nlsystems.com (Doug Rabson) Cc: current@freebsd.org Subject: Re: newbus and isa auto irq Message-ID: <199904191738.TAA97791@zibbi.mikom.csir.co.za> In-Reply-To: <Pine.BSF.4.05.9904190940240.85882-100000@herring.nlsystems.com> from Doug Rabson at "Apr 19, 1999 09:53:20 am"
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> >
> > I ave found one more thing that seems to be broken. I have used the
> > irq "autodetect" feature of the ed(4) for a long time, but it seems
> > that the newbus compatability shim is not doing the right thing
> > with it. My kernel config file have a line like this:
> >
> > device ed0 at isa? port 0x280 net irq ? iomem 0xd8000
> >
> > The card gets probed but you just get device timeouts and there is no
> > mention of an irq for that device in the probe output. Booting with
> > -c and specifying the irq there also didn't work. Rebuilding the kernel
> > with a config file which specified the irq did work though.
>
> Could you run a test kernel for me with this patch and tell me what it
> prints.
>
It doesn't print anything for the ed0 device. It does print 2 lines though,
one for wdc0 and one for the printer port:
-------
Apr 19 19:22:27 orca /kernel.doug: fdc0: FIFO enabled, 8 bytes threshold
Apr 19 19:22:27 orca /kernel.doug: fd0: <1440-KB 3.5" drive> at fdc0 drive 0
Apr 19 19:22:27 orca /kernel.doug: isa_compat_probe: old irq=-1, new mask=4000,
new irq=14
Apr 19 19:22:27 orca /kernel.doug: wdc0 at port 0x1f0-0x1f7 irq 14 on isa0
Apr 19 19:22:27 orca /kernel.doug: wdc0: unit 0 (wd0): <WDC AC2635F>
Apr 19 19:22:27 orca /kernel.doug: wd0: 610MB (1249920 sectors), 1240 cyls, 16 h
eads, 63 S/T, 512 B/S
Apr 19 19:22:27 orca /kernel.doug: wdc0: interrupting at irq 14
...
Apr 19 19:22:28 orca /kernel.doug: isa_compat_probe: old irq=-1, new mask=80, new irq=7
Apr 19 19:22:28 orca /kernel.doug: ppc0 at port 0x378 irq 7 on isa0
Apr 19 19:22:28 orca /kernel.doug: ppc0: SMC FDC37C665GT chipset (PS2/NIBBLE) in COMPATIBLE mode
Apr 19 19:22:28 orca /kernel.doug: ppb0: IEEE1284 device found
Apr 19 19:22:28 orca /kernel.doug: Probing for PnP devices on ppbus0:
Apr 19 19:22:28 orca /kernel.doug: lpt0: <generic printer> on ppbus 0
Apr 19 19:22:28 orca /kernel.doug: lpt0: Interrupt-driven port
Apr 19 19:22:28 orca /kernel.doug: ppc0: interrupting at irq 7
Apr 19 19:22:28 orca /kernel.doug: ed0 at port 0x280-0x29f on isa0
Apr 19 19:22:28 orca /kernel.doug: ed0: address 00:00:c0:1d:43:db, type SMC8216/
SMC8216C (16 bit)
Apr 19 19:22:28 orca /kernel.doug: Intel Pentium detected, installing workaround
for F00F bug
--------
> - if (dvp->id_irq != (1 << isa_get_irq(dev)))
> + if (dvp->id_irq != (1 << isa_get_irq(dev))) {
> +printf("isa_compat_probe: old irq=%d, new mask=%x, new irq=%d\n",
> + irq_get_irq(dev), dvp->id_irq, ffs(dvp->id_irq) - 1);
> isa_set_irq(dev, ffs(dvp->id_irq) - 1);
> + }
I assume the irq_get_irq() should be isa_get_irq().
I have tried the patch that Luoqi posted and that works for me. Although
even with that the the userconfig by booting with -c don't work. It just
plain ignores what you do there.
John
--
John Hay -- John.Hay@mikom.csir.co.za
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