the 68901. Do this now by _assigning_ ~<bit_to_clear> instead of the
previously used 'andb ~<bit_to_clear>'. The latter caused a rwm-cycle that
caused a race condition to happen when an interrupt arrived between the
Read and Modify-Write.
Anyway, this solved my hanging keyboard problem.
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.
we managed to kill the following SCSI-driver bugs for the Falcon:
- The Byte_Count_zero bit of the falcon DMA controller does not always
tell the truth! This caused the SCSI-driver to choke on devices that
disconnected in the middle of a DMA-transfer (mostly removables).
- Printing debug info about the 5380 on the Falcon is *only* permitted
when DMA is not active.
- Some functions forgot to remove possibly pending sofware interrupts
- Some debug options didn't allow debugging a single target while they
could easily be made to do so. This is fixed.
of a lot of instability problems on the Falcon. I also enabled DMA on
interrupt basis for the Falcon.
- Try to handle targets that request too much data more sanely.
- Some fixups for strict prototypes + -Wall
Thanks to Markus Kilbinger for providing the debugging support.
- split softc size and match/attach out from cfdriver into
a new struct cfattach.
- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.
- Don't _ever_ do DMA for less than 512 bytes on the Falcon
- Fix bug in autosense-handling. Now asks for the correct number of bytes.
Now it won't read ghost bytes on the tape anymore.
- Add missing braces as suggested by Matthias Pfaller
- Make it possible to debug requests on a specified number of targets
- Add debug option to show only transaction with error code != 0
the previous version. The machine dependent part contains the configuration
for both the TT and FALCON. The configuration files have been changed to
select SCSI-support for either TT, Falcon or both.
The configuration file for the Atari-Falcon will only get _really_ usefull
when the Falcon video part is finished.
leo