[9fans] anyone using a TI PCI 1220 cardbus with plan9?

[9fans] anyone using a TI PCI 1220 cardbus with plan9?

[nemo]

I'm playing around with a wavelan driver for a dell i7k, 
and I think the plan9 cardbus driver is not working properly for me.

Just wondering...

thanks

Re: [9fans] anyone using a TI PCI 1220 cardbus with plan9?

[nemo]

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: I didn't even know we had a cardbus driver, I thought all we had was
: pcmcia.  They're not the same.

Funny, that's a fine reason for a ``cardbus driver'' to fail, not being there :-)


I'll play then with a cardbus driver before playing with a wavelan
driver. Or is any other 9fan working on such thing?


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I didn't even know we had a cardbus driver, I thought all we had was
pcmcia.  They're not the same.

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From: nemo@gsyc.escet.urjc.es
To: 9fans@cse.psu.edu
Subject: [9fans] anyone using a TI PCI 1220 cardbus with plan9?
Date: Tue, 9 Jan 2001 18:19:36 0000
Message-ID: <20010109171952.73AB019A41@mail.cse.psu.edu>

I'm playing around with a wavelan driver for a dell i7k, 
and I think the plan9 cardbus driver is not working properly for me.

Just wondering...

thanks

Re: [9fans] anyone using a TI PCI 1220 cardbus with plan9?

[jmk]

nemo@gsyc.escet.urjc.es:
	I'm playing around with a wavelan driver for a dell i7k, 
	and I think the plan9 cardbus driver is not working properly for me.

there is no cardbus support in plan9, all it understands is pcmcia.
however, most cardbus controllers have a 'compatibility mode' where they
just look like the old intel 82365 controller. sometimes they
doe this automatically, sometimes you have to tell the machine which
mode you want the controller to come up in (either a bios setup option
or some magic system configuration option under windows). in most cases,
unless you plug a real cardbus card in, pcmcia cards work ok as the
controller defaults to compatibility mode - but not always.

we have wavelan cards working with plan 9 in cardbus-equipped laptops, 
and as far as i can remember, only the toshiba 3440ct required us to
tell the machine to use the compatibilty option via a windows programme.


cardbus support would be really nice (especially if someone else did it...).
basically, as far as i understand, you have to probe the pci bus until you
find a cardbus controller, which is really just a pci-pci bridge. the
tricky part is you have to initialise the bridge controller windows, etc.
after that, you can find the cards on the cardbus, and they look just
like pci devices - except they probably have not been configured yet,
so you have to give them i/o, memory addresses, irq's etc. this is a
level of management and bookkeeping the current pci and system initialisation
code is not up to yet.

if anyone wants to tackle it right now (rather than when i get round to it)
i'd be happy to help.

--jim

Re: [9fans] anyone using a TI PCI 1220 cardbus with plan9?

[presotto]

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I didn't even know we had a cardbus driver, I thought all we had was
pcmcia.  They're not the same.

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From: nemo@gsyc.escet.urjc.es
To: 9fans@cse.psu.edu
Subject: [9fans] anyone using a TI PCI 1220 cardbus with plan9?
Date: Tue, 9 Jan 2001 18:19:36 0000
Message-ID: <20010109171952.73AB019A41@mail.cse.psu.edu>

I'm playing around with a wavelan driver for a dell i7k, 
and I think the plan9 cardbus driver is not working properly for me.

Just wondering...

thanks