Allow to enable the game port on an ES1888, in case the firmware didn't
this. (Otherwise we still rely on the firmware having mapped the sound
related registers.)
Limit this to the "isa" attachment for now because this is the only
one I'm able to test.
Attach the "joy" device directly at "ess" to make sure the port is
enabled before the "joy" probe/attach.
This makes the joystick port usable on a "PWS" alpha (Miata).
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.
The old timeout()/untimeout() API has been removed from the kernel.
* Separate the interrupt handlers based on which channel (audio1/audio2)
rather than which direction (input/output). Only register the handler for
audio1 on the 1788.
* Since the input sides are actually the same, GC the duplicated code.
* Re-KNF in a bunch of places.
* Make this work again on the 1887 in the Shark.