Date: Thu, 03 May 2001 08:13:03 -0700 From: Darryl Okahata <darrylo@soco.agilent.com> To: George Michaelson <ggm@apnic.net> Cc: freebsd-mobile@FreeBSD.ORG, Warner Losh <imp@harmony.village.org> Subject: Re: DELL Latitude 400 and pccard? Message-ID: <200105031513.IAA16973@mina.soco.agilent.com> In-Reply-To: Your message of "Thu, 03 May 2001 14:41:11 %2B1000." <11812.988864871@apnic.net>
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George Michaelson <ggm@apnic.net> wrote:
> I had the device working on a Compaq under 4.2, so the card is only known
> good in other hardware.
Unfortunately, each laptop is different, and the reason why you
can't get it to work in the Dell is probably laptop/FreeBSD-specific.
> dmesg and kernel config attached...
[ ... ]
> pcic0: <VLSI 82C146> at port 0x3e0-0x3e1 irq 10 on isa0
> pcic0: management irq 13
Unfortunately, the above IRQs have got to match, in order for the
drivers to work (but there's another problem -- see below).
Well, let's see what you have:
IRQ 0: (reserved, can't use) system timer
IRQ 1: (reserved, can't use) atkbd0 <AT keyboard>
IRQ 2: daisy-chain to IRQ 9
IRQ 3: pci0: <unknown card> (vendor=0x11c1, dev=0x0448)
(This is an AT&T LT Winmodem 56K)
IRQ 4: sio0 (com1)
IRQ 5:
IRQ 6: (reserved, can't use) floppy disk
IRQ 7: ppc0 <Parallel port>
IRQ 8: (reserved, can't use) RTC
IRQ 9:
IRQ 10: pci1 <ATI Mobility-1 graphics accelerator>,
pcic-pci0 <TI PCI-1410 PCI-CardBus Bridge>,
pcic0 <VLSI 82C146>,
pcm0 <Crystal Semiconductor CS4281>,
xl0 <3Com 3c905C-TX Fast Etherlink XL>
IRQ 11: uhci0 <Intel 82371AB/EB (PIIX4) USB controller>
IRQ 12: psm0 <PS/2 Mouse>
IRQ 13: (reserved, can't use) FPU
IRQ 14: ata0 (hard disk)
IRQ 15: ata1
Urg -- there's a lot of junk on IRQ10. IRQ 5 and 9 are unused, and IRQ
15 might be unused (I don't see a CDROM or additional hard disk
connected to it), if you got rid of the ata1 device.
[ Warner: can the pcic driver share IRQs, yet? I believe older versions
of FreeBSD can't, but what about 4.3? ]
If the pcic driver can't share IRQs, you're probably screwed
(assuming that the Dell BIOS doesn't allow you to specify/move the pcic
IRQ, which it probably doesn't, knowing Dell).
--
Darryl Okahata
darrylo@soco.agilent.com
DISCLAIMER: this message is the author's personal opinion and does not
constitute the support, opinion, or policy of Agilent Technologies, or
of the little green men that have been following him all day.
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