Change <machine/bus.h> to <sys/bus.h> throughout.

Use lwp_getpcb() on m68k ports, clean from struct user usage.

Remove clause 3 and 4 from TNF licenses

Split the softc from the device_t for all lpt(4) variants and attachments
except the ppbus stuff (which doesn't compile) and ulpt(4) which is
unrelated and can be dealt with separately.

As usual, it

Split the softc from the device_t for all lpt(4) variants and attachments
except the ppbus stuff (which doesn't compile) and ulpt(4) which is
unrelated and can be dealt with separately.

As usual, it comes with related cosmetic changes.

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Use CFATTACH_DECL().

Declare all cfattach structures const.

add __KERNEL_RCSID as suggested by Luke Mewburn

- ANSIfy
- remove some trailing spaces/tabs
- minor style nits

Align adresses better

Fix Copyright dates

Assign my files to The NetBSD Foundation, Inc.

Switching dev/ic/lpt.c to use spllpt() instead of spltty(). It doesn't use
tty structures, and on some machines (namely the DraCo internal lpt, and some
multi-i/o boards for Amigas and DraCos), tying

Switching dev/ic/lpt.c to use spllpt() instead of spltty(). It doesn't use
tty structures, and on some machines (namely the DraCo internal lpt, and some
multi-i/o boards for Amigas and DraCos), tying spltty to the pretty high printer
interupt level would hurt serial performance.

On all affected ports but Amiga, spllpt() has been defined in machine/intr.h
to be spltty(), thus preserving old behaviour. Portmasters are encouraged to
change is, if they feel something else is better (e.g., one of its own were
possible).

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amiga_ttyspl -> amiga_serialspl (and keep ttyspl constant at 4 again).
(Part of this change slipped in with my last machdep commit; thanks to
Matthias Scheler for pointing this out).

First part of splitting lpt.c, and the NetBSD/Amiga "supio" frontend. Needs
a bit more work to allow an ISA frontend.