TAB/space cleanup.

Merge thorpej-cfargs2.

Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass a

Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

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Fix a longstanding bug in hilkbd (and dnkbd) console attachment.

cn_tab->cn_dev is initialized in wsdisplay_emul_attach()
(but not in wsdiaplay_cnattach()) so it cannot be used
when hil(4) is attach

Fix a longstanding bug in hilkbd (and dnkbd) console attachment.

cn_tab->cn_dev is initialized in wsdisplay_emul_attach()
(but not in wsdiaplay_cnattach()) so it cannot be used
when hil(4) is attached before wsdisplay(4) is attached.
Instead, use exported wsdisplay_cnputc() that is actually
set in early wsdisplay_cnattach().

Now we can use ddb and RB_ASKNAME via HIL keyboard console.
Should be pulleld up to netbsd-8 and netbsd-9.

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Remove auto-repeat key functions in WSKBD_RAW mode.

Pulled from OpenBSD:
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/hp300/dev/Attic/dnkbd.c#rev1.18
http://cvsweb.openbsd.org/cgi-bin/cvs

Remove auto-repeat key functions in WSKBD_RAW mode.

Pulled from OpenBSD:
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/hp300/dev/Attic/dnkbd.c#rev1.18
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/dev/hil/hilkbd.c#rev1.15
> WSKBD_RAW mode used in X, but X independently implements auto-repeat keys.

Tested with Xorg server on HP425t with topcat.

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In RAWKBD mode, don't schedule autorepeat callout(9) after KEY_UP events.

Now Apollo Domain keyboard works propery on Xorg server on my 425t.
Changes are taken from sys/dev/hil/hilkbd.c.

Note as Op

In RAWKBD mode, don't schedule autorepeat callout(9) after KEY_UP events.

Now Apollo Domain keyboard works propery on Xorg server on my 425t.
Changes are taken from sys/dev/hil/hilkbd.c.

Note as OpenBSD says in the following commit log:
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/hp300/dev/Attic/dnkbd.c#rev1.18
>> Auto-repeat keys in WSKBD_RAW mode is not needed.
>> WSKBD_RAW mode used in X, but X independently implements auto-repeat keys.
these autorepeat code will be removed later, but I commit this fix first
for the record.

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Send break signal to reset keyboard state before keyboard probe.

Now Apollo Domain keyboard is probed properly even after
any keys are typed before boot (i.e. on bootloader prompt).

Tested on 425e

Send break signal to reset keyboard state before keyboard probe.

Now Apollo Domain keyboard is probed properly even after
any keys are typed before boot (i.e. on bootloader prompt).

Tested on 425e and A1630-82001 keyboard
(that were contributed by Miod Vallat).

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Pull random notes on the Apollo Domain keyboard from ancient PR/3528.

Make the Apollo Domain keyboard actually work.

Tested on HP9000/425e and the keyboard model A1630-82001 R2 (RX-60857-HW)
provided by Miod Vallat. Mouse support needs more work.

Use aprint_normal(9) and variants.

- make local functions static
- some KNF

Fix one more porting botch inside #ifdef WSDISPLAY_COMPAT_RAWKBD.

Make this compile properly with options WSDISPLAY_COMPAT_RAWKBD.

Pull Apollo Domain keyboard and mouse support from OpenBSD.
Untested (no hardware), but no bad sideeffect on 425t without Domain keyboard.

This is the last portion of "new hp300 kernel features" sub

Pull Apollo Domain keyboard and mouse support from OpenBSD.
Untested (no hardware), but no bad sideeffect on 425t without Domain keyboard.

This is the last portion of "new hp300 kernel features" submitted in
PR port-hp300/3528 back in 1997, and I think finally we can close it.

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