Allow devices to declare themselves an "ofisa_subclass", allowing
that device to beat "ofisa" in match, but then attach an "ofisa"
instance as a logical child at the same OFW node.

"ofisa" carried an "ofbus" interface attribute in addition to its own
in order to attach an "ofrtc" instance. This worked prior to the
autconfiguration system enforcing non-ambiguous interface attribute
specificaitons due to how the attach args for ofisa were structured.

But it no longer works, and is a big dodgy barring a formalized "subclassing"
facility for interface atributes in config(5).

So, stop using "ofrtc" on Shark, and replace it with an ofisa driver for
the mc146818 real time clock hardware, and remove "ofbus" from "ofisa".

merge ktrace-lwp.

add dependency on isadma for atppc attachments
add atppc_isadma.c for atppc@isapnp and atppc@ofisa, too

ofisa atppc(4) attachment
test-compiled with Shark GENERIC (with atppc* at ofisa? added), otherwise
untested

branches: 1.11.16;
move dev/isa/cs89x0{.c,{var,reg}.h} into dev/ic
and split isadma parts into /dev/isa/cs89x0isa*.

branches: 1.10.2; 1.10.4;
Add pckbc attachment so we can get wscons on the dnard.

branches: 1.9.12;
Add ofisa attachment for the ISA joystick driver.
XXX currently arm32-specific.

Uncomment the SoundBlaster ofisa attachment; the Shark isn't the only
potenial user of ofisa (e.g. my FirePower). An ofisa attachment for the
SoundBlaster is prefectly legitimate.

A first stab at making the SHARK sound work. It doesn't really work
yet, but it probes and makes a noise when used. Stay tuned!

branches: 1.6.2;
ISA with OpenFirmware configuration glue for the CS8900 Ethernet driver.

Declare the ofisa soundblaster attachment.

compile with -Wall, update for changes to dev/ofw

Remove "class" declarations, and add "devclass" declarations where
appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.

don't forget class spec

initial implementation of OFW ISA bus code and attachments for a few
devices. Still a bit rough, but works well enough. Requires a bunch of
machine-dependent glue (since this is, in effect, a MI bus bridge).

"ofisa" carried an "ofbus" interface attribute in addition to its own
in order to attach an "ofrtc" instance. This worked prior to the
autconfiguration system enforcing non-ambiguous interface attribute
specificaitons due to how the attach args for ofisa were structured.

But it no longer works, and is a big dodgy barring a formalized "subclassing"
facility for interface atributes in config(5).

So, stop using "ofrtc" on Shark, and replace it with an ofisa driver for
the mc146818 real time clock hardware, and remove "ofbus" from "ofisa".

merge ktrace-lwp.

add dependency on isadma for atppc attachments
add atppc_isadma.c for atppc@isapnp and atppc@ofisa, too

ofisa atppc(4) attachment
test-compiled with Shark GENERIC (with atppc* at ofisa? added), otherwise
untested

branches: 1.11.16;
move dev/isa/cs89x0{.c,{var,reg}.h} into dev/ic
and split isadma parts into /dev/isa/cs89x0isa*.

branches: 1.10.2; 1.10.4;
Add pckbc attachment so we can get wscons on the dnard.

branches: 1.9.12;
Add ofisa attachment for the ISA joystick driver.
XXX currently arm32-specific.

Uncomment the SoundBlaster ofisa attachment; the Shark isn't the only
potenial user of ofisa (e.g. my FirePower). An ofisa attachment for the
SoundBlaster is prefectly legitimate.

A first stab at making the SHARK sound work. It doesn't really work
yet, but it probes and makes a noise when used. Stay tuned!

branches: 1.6.2;
ISA with OpenFirmware configuration glue for the CS8900 Ethernet driver.

Declare the ofisa soundblaster attachment.

compile with -Wall, update for changes to dev/ofw

Remove "class" declarations, and add "devclass" declarations where
appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.

don't forget class spec

initial implementation of OFW ISA bus code and attachments for a few
devices. Still a bit rough, but works well enough. Requires a bunch of
machine-dependent glue (since this is, in effect, a MI bus bridge).