Re: Drivers situation

[<fh...@at...>]

In <Pin...@en...>, on
07/05/00 
   at 08:22 AM, Ken Tyler <ke...@we...> said:



>On Tue, 4 Jul 2000, Michel [iso-8859-1] D nzer wrote:

>> > 1) Is anyone working on Cyberstorm SCSI ?
>> >    Nicholai said to me months ago that nobody was working on it.
>> >    The situation is changed or not ?
>> 
>> Fred Heitka is working on it but unfortunately hasn't had much success. Please
>> join my efforts to make him contribute the code to the CVS repository :)

Actually my last name is "Heitkamp".   I have yet to get the driver to
pass the cache test.  I am not sure what is wrong, but Ken seems to think
the CPU cache is getting in the way.  I have let the pieces that reserve
the I/O space alone.  The driver uses check_region/request_region to
reserve I/O space for the kernel, but that doesn't seem to allow the SCSI
chip to access memory properly.  What I plan to do next is use the bits
out of the 53C7xx driver to see if that makes any difference, unless
someone has a better idea. 

>I thought I might have been able to help Fred a little but the code is
>very different from the 53c7xx driver that I've looked at.

Yes the code is written in a completely different style from that of the
53c7xx driver but it appears to be a close cousin of the  driver used in
the sym53c8xx driver, which is used for a number of  cards for the PC. 
Alas they are all ISA or PCI cards.  I am trying to  find someone who can
tell me the major differences between
accessing cards on the Amiga vs. the PC.  If the driver ever does get to
work, I would eventually like to see it combined with the sym53c8xx.c in
order to take advantage of the active development. If that's all possible
of course.

Fred