Date: Sat, 03 Oct 1998 07:14:12 +0100 From: jon Nicoll <jkn@nicorp.force9.net> To: freebsd-questions@FreeBSD.ORG Cc: jkn@symbionics.co.uk Subject: PCI modem config problems, irq? and 'driver not assigned' Message-ID: <3.0.2.32.19981003071412.0079a430@mail.force9.net>
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Hi there I'm a newcomer to FreeBSD and having got my system up & running I'm trying to setup a PCI modem correctly. I was unable to run things like tip and ppp and have stepped back to the HW initialisation. I hope someone can help me see what to look at next!... The modem is a pretty cheap PCI modem using the Lucent (LT) chipset. It seems to announce itself (under Windows) as an 'LT Winmodem', but does not seem to be a 'Win Modem'. That is, under Windoze I can talk to it as COM3: using standard terminal programs and standard serial drivers. So I'm pretty sure it can somehow be used under FreeBSD. The settings I get from Windows for the modem are the following: - (COM3) - IRQ 11 - Memory Range 0xE1000000-0xE10000ff - I/O range 0x6100-61ff - I/O range 0x6200-62ff And when I recompiled the (2.2.7) kernel (thanks Raggy!) I use a config file entry like this: device sio2 at isa? port 0x6100 tty irq 11 vector siointr At boot time, I get the following information about the PCI cards installed in my system from the BIOS: (All Bus 0) Device# Func# VendorID DeviceID DeviceClass IRQ 7 1 8086 7010 IDE controller 14 9 0 11c1 0440 Simple COMMS controller 11 10 0 1002 4354 Display Controller NA 11 0 1000 0001 Unknown PCI device 10 12 0 10ec 8029 Network Controller 10 So far, so good (The 'Unknown PCI device' is my SymBios SCSI card). However, when I boot FreeBSD in verbose mode (and compiled with PCI_QUIET and PCI_BRIDGE_DEBUG set so as to give the most information possible) I get something like the following: config header: 0x044011c1 0x02970007 0x07800001 0x00000000 pci0:9: vendor=0x11c1, device=0x0440, class=comms, subclass=0x80 int a irq 11 [no driver assigned] map(10): mem32(e1000000) map(14): io(6100) map(18): io(6200) and later: sio2: configured irq not in bitmap of probed irqs 0 sio2: irq maps: 0x1 0x1 0x1 0x1 sio2 at 0x6100-0x6107 irq 11 on isa sio2: type 16550A It seems that the information '[no driver assigned]' and 'sio2: configured irq not in bitmap of probed irqs 0' are telling me something, but I'm not sure what. All the information obtained from the PCI card seems OK, and I even get the SIO probed and recognised. But in PCI.C, the function 'not_supported()' is being called, and that starts to make me suspicious ;-) ... I notice that the boot process finds and assigns my ethernet card successfully, even though, like my modem card, it's a PCI card with an 'isa' entry in the config file. I also notice that the defined classes within PCI.C etc. seem to peter out at around class 0x06, and that 'comms' is class 0x07. However the function 'not_supported()' at least seems to understand subclass 07. I guess that something about the pci details read from the card makes the system think that it has no driver to support it, but I'm not sure how to confirm or change this. I'm starting to struggle - any suggestions as to what I do next? Thanks very much jon Nicoll -- .sig under contruction To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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