* Forget all cached info when opening a new disc.
* If the disc is removed, flush the buffer queue rather than stalling it.
* Set the default label after getting the disc size, and fill in the info
for RAW_PART also.
* Change another use of the unit number to a softc pointer.
* Use a dkdevice to hold the label and open partition masks.
* Force the partition offset to 0 for RAW_PART, regardless of the label.
* Nuke MCDPHYS() and MCDREADRAW; they had a silly bug that caused the code
to not work, and they aren't useful anyway.
Some other minor cleanup.
and always use it (otherwise short packets could still be corrupted). Also
produce a diagnostic message if DIAGNOSTIC, since it *is* a hardware bug.
Add an ED_PAGE_SHIFT constant, and use it, to avoid GCC doing horrendous
things with divides and multiplies.
* Add a dkdevice; move sc_*openpart, sc_label, and sc_cpulabel into it.
* Turn sc_wlabel into a flag, and don't set it automatically in DIOCWLABEL.
* If there is no label, disallow all I/O except to the raw partition.
* Don't allow I/O to `unused' partitions.
* Beginnings of support for block sizes other than 512 bytes.
Other minor changes.
* Get rid of unused `partflags'.
* Use dk_openpart, and remove `openparts'. Also, allow an open on both
the block and characters devices at the same time.
* If there was a label, print the geometry from the label at boot time.
* Turn `wlabel' into a flag, and *don't* set it automatically in
DIOCWLABEL; disklabel(8) does that.
Other minor changes.
* Set promiscuous mode flag before configuring card, so it actually works.
* Handle failed TDR commands correctly.
* Remove some apparently defunct and bogus code.
(This driver needs more work.)
mycroft