Merge thorpej-cfargs2.

branches: 1.12.8;
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?).

branches: 1.11.44;
fix unused variable warnings

branches: 1.10.2; 1.10.12; 1.10.16;
Cleanu <machine/*> includes

- split device_t/softc
- make sure that *(dtdv_handler)() registered via dt_establish_handler()
takes softc, not device_t as other interrupt handlers

No crash during device attach on GXemul.

branches: 1.8.22; 1.8.28; 1.8.32;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.40; 1.7.42; 1.7.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.6.26;
merge ktrace-lwp.

branches: 1.5.10;
Fix Maxine keyboard and mouse ioctl routines to return EPASSTHROUGH for
unrecognized commands so they can be passed to other handlers.

Fix MAXINE keyboard multi-key press bug. Keyboard sends all currently
depressed keys in each message. Any keys in current message that are
also present in previous message are ignored. However, copying a byte
array into an integer array and comparing entry by entry doesn't have
the desired effect. Change the definition of the save buffer to match
the current message buffer data.

MAXINE keyboard and mouse now works, albeit with some minor issues.

Add drivers for the desktop bus, DC-7085 and pm display. Make it possible to
select between rcons or wscons at compile time. Ok'ed by simonb.

branches: 1.1.2; 1.1.12;
file dtkbd.c was initially added on branch ad_pmax_wscons.

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?).

branches: 1.11.44;
fix unused variable warnings

branches: 1.10.2; 1.10.12; 1.10.16;
Cleanu <machine/*> includes

- split device_t/softc
- make sure that *(dtdv_handler)() registered via dt_establish_handler()
takes softc, not device_t as other interrupt handlers

No crash during device attach on GXemul.

branches: 1.8.22; 1.8.28; 1.8.32;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.40; 1.7.42; 1.7.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.6.26;
merge ktrace-lwp.

branches: 1.5.10;
Fix Maxine keyboard and mouse ioctl routines to return EPASSTHROUGH for
unrecognized commands so they can be passed to other handlers.

Fix MAXINE keyboard multi-key press bug. Keyboard sends all currently
depressed keys in each message. Any keys in current message that are
also present in previous message are ignored. However, copying a byte
array into an integer array and comparing entry by entry doesn't have
the desired effect. Change the definition of the save buffer to match
the current message buffer data.

MAXINE keyboard and mouse now works, albeit with some minor issues.

Add drivers for the desktop bus, DC-7085 and pm display. Make it possible to
select between rcons or wscons at compile time. Ok'ed by simonb.

branches: 1.1.2; 1.1.12;
file dtkbd.c was initially added on branch ad_pmax_wscons.