Re: RC1 and framebuffer

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Hello,

On Sep 6, 2007, at 16:25, Allen Briggs wrote:

> On Thu, Sep 06, 2007 at 08:59:38PM +0100, Robert
Swindells wrote:
>> I have some local diffs that improve Q950 ADB
support, but not by
>> enough to make it usable. Probing all the ADB
devices and shuffling
>> their addresses around works, I just can't get
auto-polling to work.
>
> Cool.

Indeed.

>> I had been meaning to ask you whether I ought to
commit them anyway
>> so someone else could take a look.
>
> If they work well enough for you and shouldn't affect
others, then I'd
> say to go ahead.

Yeah, makes it easier for others to continue the work and
avoid 
duplication.
>
> I think it would also be worth looking at the work that
Macallan has
> done with ADB on port-macppc.

Maybe - basically I separated the ADB controller parts from
bus 
enumeration and actual ADB device drivers. The stuff in
dev/adb/ 
shouldn't contain any macppc-isms, all it needs is a way to
send and 
receive ADB messages.
So we end up with
cuda* at obio?
pmu* at obio?
... which are more or less macppc-specific, and
nadb* at adb_bus?
adbkbd* at nadb?
adbms* at nadb?
adbbt* at nadb?
... which are machine independent.

Main advantages over the existing code are support for more
than one 
instance of each ADB device, support for controlling
keyboard LEDs, 
proper handling of things like caps lock, num lock etc.,
configurable 
mouse button emulation, and a lot less cruft.
There are a few things missing though, like apm emulation
and support 
for smart batteries but at least the latter wouldn't matter
on mac68k 
anyway.

have fun
Michael
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On Fri, Sep 07, 2007 at 01:08:38AM -0400, Michael Lorenz
wrote:
> So we end up with
> cuda* at obio?
> pmu* at obio?
> ... which are more or less macppc-specific, and

Some of the cuda may not be ppc-specific.  If I recall
correctly,
mac68ks used VIAs, Egrets, Cudas, and IOPs for ADB access
over the
years.  So there might be something to gain from trying to
bring
a better understanding and structure to the mac68k code
base.

-allen

-- 
Allen Briggs  |  http://www.ninthw
onder.com/~briggs/  |  briggsninthwonder.com