linux-kernel - Re: Re-distributable 88w8335 Firmware?

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Date:	Wed, 08 Dec 2010 18:13:33 -0600
From:	Dan Williams <dcbw@...hat.com>
To:	Julian Calaby <julian.calaby@...il.com>
Cc:	linux-wireless <linux-wireless@...r.kernel.org>,
	David.Woodhouse@...el.com, Greg KH <greg@...ah.com>,
	linux-kernel@...r.kernel.org,
	Lennert Buytenhek <buytenh@...tstofly.org>,
	Holger Schurig <holgerschurig@...glemail.com>,
	Markus Becker <mab@...nets.uni-bremen.de>,
	andreamrl@...cali.it, Denis Kirjanov <kirjanov@...il.com>,
	dwmw2@...radead.org
Subject: Re: Re-distributable 88w8335 Firmware?

On Wed, 2010-11-24 at 16:26 +1100, Julian Calaby wrote:
> On Wed, Nov 24, 2010 at 16:10, Dan Williams <dcbw@...hat.com> wrote:
> > On Wed, 2010-11-24 at 15:48 +1100, Julian Calaby wrote:
> >> On Wed, Nov 24, 2010 at 15:13, Dan Williams <dcbw@...hat.com> wrote:
> >> > Malo supports the PCMCIA/CF variant of the 8385; not a PCI variant
> >> > AFAICT.  I know of no PCI variant for the 8385, just CF, SDIO, and GSPI.
> >> > But I find it curious that malo supports 8335+8385, given that the
> >> > firmware interface of the 8385 and the 8335 are so different.  Unless
> >> > they have special firmware, the 8385 is a fullmac device, while the 8335
> >> > is a softmac device.  Enough differences exist that I'd expect them to
> >> > be driven by separate drivers, otherwise the code would be quite ugly.
> >> > Which is why we didn't try to shoehorn the 8335 or TopDog stuff into
> >> > libertas.
> >>
> >> You clearly know a hell of a lot more about the ins and outs of Marvel
> >> chipsets that I do. =)
> >
> > Eh, *some* of the chipsets :)  Others (Lennert) know a lot more about
> > later versions than I do.  But I never know everything or even enough of
> > anything :)
> 
> I know exactly how you feel. =)
> 
> >> I stand corrected.
> >>
> >> So, to amend my previous request: We're after firmware for the softmac
> >> 88w8335 chipset *only*.
> >>
> >> Though it may be nicer if Marvell were to bless Malo's firmware
> >> package (linked above) as this contains firmware for the PCI 88w8335,
> >> USB 88w8338 and a file which claims to be for the PCMCIA/CF 88w8385.
> >
> > Yeah, though honestly I'd rather have the duplex firmware from MSSII for
> > the 8335, since it can do AP mode too.  That does leave the 8338 (USB?)
> 
> Me too - and it'd mean that we don't have to do AP-mode firmware
> loading tricks like in mw8k. But if we can't get that then some
> firmware is better than none.
> 
> > of course but we can probably get clarification on that too.  As with
> > the 8335, I only have access to a 8335 Windows driver, but if we had a
> > firmware extractor tool, I believe the Marvell Extranet firmware license
> > covers embedded firmware from Windows .sys files too.
> 
> I think I may have a simple firmware extractor at home that I pulled
> from *somewhere* when I was working on this last time. We can see if
> it does anything with those files. I believe I have at least two
> different Windows drivers at home - IIRC, one of them is *just* the
> files needed for this extractor.

I've converted the cb35 duplex firmware to binary and uploaded it to
linux-firmware after receiving permission from Marvell to do so.  Now
lets get a driver :)

Dan


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