Merge thorpej-cfargs2.

branches: 1.18.8;
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: 1.17.54;
device_t/softc split
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

branches: 1.16.2; 1.16.6;
#include <sys/bus.h> instead of <machine/bus.h>.

ANSIfy, un-__P, and generally KNF.

Use the SI capitalization for "Hz", "kHz", and "MHz" in comments and strings.
Add a space between numbers and Hz unit.

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.11.2;
Make the vidcsearch() prototype match the function declaration.

adaptions to config_search() change, and minor autoconf fixes, mostly from Havard Eidnes

__KERNEL_RCSID()

branches: 1.8.8;
Add trailing ; to CFATTACH_DECL

Use CFATTACH_DECL().

Declare all cfattach structures const.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

Un-__P, ANSIfy, clean up comments.

None of the children of vidc now use their aux pointer, so there's no need
to set it, and vidcprint isn't needed to print it. G/C all that code, and
most of the rest of vidcsearch too.
This also means that the locators on vidc's children are unused, so G/C them
as well.

Don't identify all VIDCs as "vidc20". Instead, print something appropriate
based on the type of IOMD in the system (which we use anyway to work out
the VCO reference clock frequency).

branches: 1.1.4; 1.1.6; 1.1.14;
Initial commit of the splitting off of arch/acorn32 from arch/arm32.

The IOMD/VIDC combination is now moved to arch/arm/iomd together. These
files still need a lot of cleaning up :( .... esp. the RC7500 support that
is still dormant in it; this needs either to be removed or split out for
RC7500's ``VIDC'' video/audio variant.

Apart from the RC7500 support wich is still in arch/arm32 the
iomd,vidc,riscpc and podulebus subdirectories of arch/arm32 can be removed.

This split still uses some small parts of arch/arm32 .... those are the MI
parts that haven't been moved yet.

RiscPC/A7000 have been tested and confirmed to build as should NC.

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: 1.17.54;
device_t/softc split
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

branches: 1.16.2; 1.16.6;
#include <sys/bus.h> instead of <machine/bus.h>.

ANSIfy, un-__P, and generally KNF.

Use the SI capitalization for "Hz", "kHz", and "MHz" in comments and strings.
Add a space between numbers and Hz unit.

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.11.2;
Make the vidcsearch() prototype match the function declaration.

adaptions to config_search() change, and minor autoconf fixes, mostly from Havard Eidnes

__KERNEL_RCSID()

branches: 1.8.8;
Add trailing ; to CFATTACH_DECL

Use CFATTACH_DECL().

Declare all cfattach structures const.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

Un-__P, ANSIfy, clean up comments.

None of the children of vidc now use their aux pointer, so there's no need
to set it, and vidcprint isn't needed to print it. G/C all that code, and
most of the rest of vidcsearch too.
This also means that the locators on vidc's children are unused, so G/C them
as well.

Don't identify all VIDCs as "vidc20". Instead, print something appropriate
based on the type of IOMD in the system (which we use anyway to work out
the VCO reference clock frequency).

branches: 1.1.4; 1.1.6; 1.1.14;
Initial commit of the splitting off of arch/acorn32 from arch/arm32.

The IOMD/VIDC combination is now moved to arch/arm/iomd together. These
files still need a lot of cleaning up :( .... esp. the RC7500 support that
is still dormant in it; this needs either to be removed or split out for
RC7500's ``VIDC'' video/audio variant.

Apart from the RC7500 support wich is still in arch/arm32 the
iomd,vidc,riscpc and podulebus subdirectories of arch/arm32 can be removed.

This split still uses some small parts of arch/arm32 .... those are the MI
parts that haven't been moved yet.

RiscPC/A7000 have been tested and confirmed to build as should NC.