First pass of KNFication. Needs more.

new RCS ID format.

6x10.h: shifted font over by two pixels.
keyboard.h: added constants for commonly used keys and reformatted
array so that gcc would be happy.
adbsys.c: new adb system.
bounds.h: bound-checking macros.
ite.c: new built-in mini-console.
8x14.h: no longer used by built-in console.
adb.c: replaced by adbsys.c

branches: 1.1.1;
Initial revision

Clean up deleted files.

The current MacBSD architecture sub-directory for NetBSD-0.9--more or
less. It needs some help to get to be -current. Support for minimal
hardware on the SE/30, II, IIx, and IIcx exists.

The delay is only required for machines with built-in floppy drives.

I doubt the vibration from an external drive on the Duos would affect adb
before it attaches.

Use attach delay only on affected machines.

It is only required for machines with built-in trackballs.

Requested by rin@.

Allow a few seconds for adb devices to settle.

The spin up of the floppy drive motor would cause a crash on my PowerBook
when adb was attached.

branches: 1.59.12;
Merge thorpej-cfargs2.

branches: 1.58.8;
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: 1.57.14;
#ifdef DIAGNOSTIC should not cause functional differences (even if
minor or cosmetic)

branches: 1.56.18; 1.56.20;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.54.2; 1.54.12;
CFATTACH_DECL(..., sizeof(struct device), -> CFATTACH_DECL_NEW(..., 0
struct device * -> device_t
struct cfdata * -> cfdata_t
use bool when appropriate

branches: 1.53.4; 1.53.10;
Drop 3rd and 4th clauses. Approved by Brad Grantham (copyright holder).

branches: 1.52.4;
Factor out ADB spin-wait timeout loop, and use it for synchronous
operations to access the PRAM RTC, etc. in the IIsi and Cuda cases.
Thanks to Martin Husemann for pointing out the flaw.

This is a slightly more thorough workaround for the issue Martin found
in PR 37611, as it affected more than just adb_read_date_time().

branches: 1.51.14;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.50.2; 1.50.18; 1.50.20; 1.50.26;
MI softintr(9)'fy.
Probably problematic, but LC630 is running at single user.

branches: 1.49.26;
bare asm -> __asm

merge ktrace-lwp.

branches: 1.47.2;
Fixes for volatile problems

de-__P, remove register, ansify, b* -> mem*.

__KERNEL_RCSID()

branches: 1.44.2;
Use aprint_normal() in cfprint routines.

Use CFATTACH_DECL().

Declare all cfattach structures const.

prepare for ELF:
- add "%" prefix to register names in assembly code.
- use _C_LABEL() where necessary.
- use packed structures where necessary to match the old ABI.

branches: 1.40.4; 1.40.8;
The Cuda-based ADB hardware has the ability to queue some commands and
return control to the main CPU before completing the ADB transaction.
Double the adb_op_sync() timeout as a result. Fixes PR 11310.

Now that we do collision detection and assign all ADB devices to distinct
addresses, it makes sense to print the actual address of the device rather
than the original address. The latter is useful to distinguish the type
of device only, so we maintain that data internally (as we always have).

This closes PR 10557 from Dave Huang.

Ken'ichi Ishizaka discovered that some devices, e.g. the A3 Mouse, don't
respond in the allotted time if they're told to TALK immediately after
completing a LISTEN command. Experimentation with adb_op_sync() yielded
consistent results when the timeout was increased from the documented
6900 usec to 8000 usec, so we'll make that change here.

(Accurate and complete documentation of the hardware sure would help...)

Stabilize ADB support for some non-Apple ADB peripherals. This is the
second (and final) part of the fix for PR 10086. (There are no longer
any infinite-wait busy loops in the ADB driver!)

branches: 1.36.2;
Revert debug-related bogon that snuck in (no change in functionality).

branches: 1.35.2;
The MRG and direct ADB drivers were inconsistent in how they worked with
a serial console; the direct driver didn't care, but the MRG driver
wouldn't probe ADB when using a serial console. Remove the check from
the MRG version of the code to resolve this difference.

Merge wscons work onto the main development branch.

Don't use the plural form of the word "target" if there is only one!

Garbage collect adb_initted.

We want adb_polling set regardless of whether we're using the MRG driver.

ite_polling -> adb_polling

Defer ADB configuration until interrupts are (normally) enabled.

An aesthetic change to autoconfig output to complement Colin Wood's
change to macrom.c in June.

branches: 1.27.2; 1.27.4; 1.27.10; 1.27.12; 1.27.16;
o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Make it compile for MRG_ADB kernels.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Patch from Takashi NAKAMURA <QZM00427@nifty.ne.jp> to support the
Contour 3-button mouse from the Contour Design Corp.
It looks like a Microspeed mouse.

Make type explicit for egcs, from Erik Bertelsen in PR 5288.

Don't map Opt-{1,2,3} to mouse buttons unless the ALTXBUTTONS option is
specified. (Doing so breaks German keyboards!) Fixes PR 4929.

Mostly KNF. There's still a bunch of ugly comments and some problems
with long lines, but this is at least a big step in the right direction.

Unify ADB options and place them all into opt_adb.h. Provide a knob to
enable ADB debugging messages if ADB_DEBUG is configured.

Update for changes to config.

Don't attempt to open the ADB device if it hasn't been initialized.
Also, don't allow more than one instance to be configured.

Make #include directives consistent. All MD headers are of the form:

#include <mac68k/{dev,mac68k}/foo.h>

branches: 1.16.2;
Add option-{1,2,3} as an alternative to option-{,left,right} for mouse
button emulation. From SUNAGAWA Keiki <kei_sun@ba2.so-net.or.jp> in
PR 3887.

Add support for Mouse Systems A3 mouse. From Colin Wood.

Updates from John Wittkoski for new ADB driver.

Convert all foo_match() functions to use a `struct cfdata *' for their
second argument. The NuBus autoconfig code had to be reorganized as a
result of this, and looks much more like a directly-attached bus now.
These changes eliminate __BROKEN_INDIRECT_CONFIG.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

- Implement poll(2)
- Convert splhigh() -> spladb()
- Guard references to adb_evq_tail and adb_evq_len!

Fix typo in last.

MicroSpeed mouse support from Taras Ivanenko <ivanenko@ctpa03.mit.edu>.
Also some updates to actually used #defined constants instead of numeric
constants.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

port-mac/1707: mac68k mouse drag problems with Cmd+arrow keys
from Ken Nakata <kenn@remus.rutgers.edu>

branches: 1.4.2;
Add support for Extended Apple Mouse Protocol from
Ken Nakata <kenn@remus.rutgers.edu>.

Option key fix from Ken Nakata (kenn@remus.rutgers.edu).

First pass of KNFication. Needs more.

Mac ROM Glue changes from grantham@tenon.com.

Increase delay when resetting adb.

This fixes intermittent device detection and no lockups when pressing the
keyboard or moving the mouse when the kernel is booting.

branches: 1.72.2;
Remove duplicate "when" word in comments.

Fix up the mac68k interrupt handlers to work with the new style common
clockframe layout and remove the CLOCK_FORMAT0 work-around. As a nice
side-effect, this also eliminates the super-sketchy stack unwinding used
by rtclock_intr to get at the interrupt stack frame.

s/anthing/anything/ and s/be to/too/ in comments.

s/ for for / for / in comment.

no need to include <machine/param.h> if <sys/param.h> already included

branches: 1.67.18; 1.67.20;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

Mark potentially unused variable

Make sure we don't accidently pass an unsolicited packet as "ack only"
(which would dereference unitialized pointers)

Remove set but unused variables.

branches: 1.63.38; 1.63.48; 1.63.54;
adb_read_date_time: remove an unused variable.

Factor out ADB spin-wait timeout loop, and use it for synchronous
operations to access the PRAM RTC, etc. in the IIsi and Cuda cases.
Thanks to Martin Husemann for pointing out the flaw.

This is a slightly more thorough workaround for the issue Martin found
in PR 37611, as it affected more than just adb_read_date_time().

Add timeout to busy loops waiting for ADB command completition.
Turns the hard hang in PR port-mac68k/37611 into a warning.

branches: 1.60.14;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.59.2;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.58.8; 1.58.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.57.2; 1.57.4; 1.57.10;
MI softintr(9)'fy.
Probably problematic, but LC630 is running at single user.

branches: 1.56.2;
Remove duplicate #includes, patch contributed in private mail
by Slava Semushin <slava.semushin@gmail.com>.

To verify that no nasty side effects of duplicate includes (or their
removal) have an effect here, I've compiled an i386/ALL kernel with
and without the patch, and the only difference in the resulting .o
files was in shifted line numbers in some assert() calls.
The comparison of the .o files was based on the output of "objdump -D".

Thanks to martin@ for the input on testing.

s/independant/independent/, from Zafer.

branches: 1.54.4; 1.54.6;
Rename shadowing time variable.

branches: 1.53.4; 1.53.8; 1.53.16;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.51.2;
Fixes for volatile problems

de-__P, remove register, ansify, b* -> mem*.

__KERNEL_RCSID()

branches: 1.48.6;
Support internal ADB keyboard of PowerBook 190,190cs.
The keyboard works fine now. I don't confirm working internal
ADB track pad.

But an internal IDE drive is not recognized, and
an internal SCSI host controller(sbc driver) don't work yet.

- Don't use multi-line string literals.
- Statements must follow labels.

branches: 1.46.6;
Fix up a bug which PB150 shuts down when one boots up in progress.
PB150 will work with SCSI disk. But we cannot use an internal IDE
disk yet.

Reviewed by briggs

prepare for ELF:
- add "%" prefix to register names in assembly code.
- use _C_LABEL() where necessary.
- use packed structures where necessary to match the old ABI.

branches: 1.44.4; 1.44.8;
Set up ADB hardware type before making decisions based on same.
This is part of PR 9852 from Daishi Kato.

Stabilize ADB support for some non-Apple ADB peripherals. This is the
second (and final) part of the fix for PR 10086. (There are no longer
any infinite-wait busy loops in the ADB driver!)

branches: 1.42.4;
New callout mechanism with two major improvements over the old
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.

Add and use macros to build ADB FLUSH, LISTEN, and TALK commands.

Check to make sure we get a valid handler ID in response to a TALK R3.

Low-level drivers, like the Power Manager driver, can get us into a major
funk when they misbehave and give us unexpected results. Specifically:

- Don't assume that the first free slot is at the top of the table if
we can't find one.
- Don't increment ADBNumDevices when backfilling "holes" left by devices
that didn't respond to a TALK R3 during the initial device scan.
- Don't assume that an address reassignment worked; make sure something
responds on the new address before plowing forward.
- If after device reassignment there are no free slots, make sure to
indicate this fact.
- Failing all else, handle the situation where we run out of slots in
the device table -- which now should "never" happen -- gracefully.

While the Power Manager driver still sometimes misbehaves, it shouldn't
cause the system to crash/hang due to us walking off the end of the
device table.

Explicitly include headers needed by iopreg.h

Bracket disabled IIfx IOP code with #ifdef __notyet__, rather than
commenting it out or using #if 0.

Apparently, the Mac TV is a re-packaged Performa 550. Add code to
recognize this so that Mac TV users can finally ditch the MRG_ADB option.

An interrupt handler may change adbInCount underneath us, so qualify the declaration
with volatile. The bug didn't show its face until more agressive
optimization showed up, apparently a result of the last egcs upgrade.
(The interrupt handling changes from June have certainly also played
a part.) Thanks to Ken'ichi Ishizaka for discovering the problem.

If there is only one ADB device, it will do us no good to avoid it
when guessing which device to poll next. Resolves PR 7407, but the
bug is a lot older than that.

In the interrupt handlers, check adb_polling instead of
adb_initted to decide whether to handle 'recovered' interrupts
immediately.

Oops... last rev created an unused variable. While here, clean up
adb_reinit()'s variables a bit, too.

Convert one more buffer copy that I missed in rev 1.28.

Always using polling for poweroff (from macppc).

ite_polling -> adb_polling

Convert buffer copies to memcpy().

Add more delay in adb_reinit() (from macppc).

branches: 1.26.2;
Don't invoke the upper half handler unless we're still
initializing the ADB bus. This fixes PR 7870.

branches: 1.25.2; 1.25.4; 1.25.6;
Poll for serial interrupts. Return to 3000us delay instead of 4000us in init.

Unfortunately, several changes that are intermingled:
- Add initial IOP support. ADB doesn't work yet for me, but it's here so
that others will be encouraged to work on it. ADB_HW_IOP basically
is configured as a NOP so that serial consoles will continue to work.
- Roll via1_intr and via2_intr into the intr.c scheme--this also required
changing rtclock_intr to grovel the stack differently so that hardclock
gets the right arguments and softclock() doesn't get all reentrant.
- Make via1 interrupts parallel to via2 interrupts--handlers get a pass-
through pointer and we can register handlers. Register via1 interrupt
with intr_establish()--normally level 1, level 6 for A/UX scheme.
- Use intr_establish() to set real via2 interrupt handler instead of the
hacked function pointer.
- Reorganize adb-direct interrupts so that a function call is removed.
- Implement A/UX interrupts for all Quadras right now. We may need to
special case some Quadras, but Linux folks are reporting success on
several models.
- Fix intrnames to be accurate for the normal, PSC, and A/UX interrupt
configurations.

From Yasuhiro Endoh: Performa 58x uses ADB soft poweroff.

Correct two more problems of the same type as in rev 1.21: use the length
of the buffer you're copying from as the loop interator, not the length
of the buffer you're copying to. Also, rewrite print_single() with
pointer instead of array operators. Appears to correct some ADB-related
`hangs' during autoconfig.

branches: 1.21.2;
Fix an obscure bug in send_adb_cuda() found be comparison with
the macppc version.

branches: 1.20.2;
o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Make this compile _and_ link with DEBUG / ADB_DEBUG defined.

Allow this to compile with DEBUG defined.

Make it compile for MRG_ADB kernels.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

New framework for handling processor interrupts, derived in part from
the hp300 port.

- Interrupts 3-6 use this immediately. Interrupt 7 is a special case,
and the VIA interrupts (1 and 2) will be addressed when that code is
rototilled.

- Modify the zs front end to register with the appropriate interrupt
controller: through the PSC on the AV Quadras, and direct to
interrupt 4 on the rest. Arrange to have the appropriate zsc_softc
supplied to us at interrupt time.

- Modify the direct ADB driver (and its PowerManager cousin) to call
intr_dispatch(), rather than zshard(). XXX This is a kludge, but at
least limits the brokenness to the ADB drivers, now.

As a side effect, this should fix PR 5590. Thanks to Bill Studenmund for
correctly determining the cause of the problem reported there.

Better integration of Power Manager IC ADB driver into the direct ADB driver framework,
from Takashi Hamada. Also includes a handler for unsolicited ADB
packets.

Add Performa 580/588 to the list of machines which have a Cuda chip.
XXX - we should really be using machine ID symbolic constants here, not
numbers.

Rewritten II-series ADB code from John Wittkoski. Also, a whole
lotta KNF.

Unify ADB options and place them all into opt_adb.h. Provide a knob to
enable ADB debugging messages if ADB_DEBUG is configured.

Another update from John: if we're polling, e.g. in ddb, pass the
keystroke to the upper half directly.

Update from John Wittkoski: the Color Classic and Color Classic II
have Cuda hardware, not IIsi-based.

Update from John Wittkoski: bug fixes for Cuda support.

remove an obsolete comment.

branches: 1.6.4;
Make #include directives consistent. All MD headers are of the form:

#include <mac68k/{dev,mac68k}/foo.h>

branches: 1.5.4;
April 18 update from John Wittkoski, w/space vs. tab KNFing by me.

Make sure to call adbop() on Power Manager-based machines. Noted by
Takashi Hamada, who also provided the code I based this modifcation
on.

Use the new opt_mrg_adb.h header.

Fix several more instances where the volatile modifier was needed.
From Allen.

Direct-to-hardware ADB interface/driver, written by John P. Wittkoski.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Direct-to-hardware ADB interface/driver, written by John P. Wittkoski.

Remove adbsys.c, which has been unused since 1998!

branches: 1.48.64;
Drop 3rd and 4th clauses. Approved by Brad Grantham (copyright holder).

branches: 1.47.44;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.46.26;
merge ktrace-lwp.

branches: 1.45.10;
de-__P, remove register, ansify, b* -> mem*.

__KERNEL_RCSID()

branches: 1.43.28;
Add and use macros to build ADB FLUSH, LISTEN, and TALK commands.

Garbage-collect adb_init(). It's been dead for a long time.

ite_polling -> adb_polling

branches: 1.40.2; 1.40.4; 1.40.10; 1.40.12; 1.40.16;
o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Patch from Takashi NAKAMURA <QZM00427@nifty.ne.jp> to support the
Contour 3-button mouse from the Contour Design Corp.
It looks like a Microspeed mouse.

Handle a non-EMP Trackman the same way we handle a non-EMP Mouseman.
Patch from John Wittkoski.

Mostly KNF. There's still a bunch of ugly comments and some problems
with long lines, but this is at least a big step in the right direction.

Unify ADB options and place them all into opt_adb.h. Provide a knob to
enable ADB debugging messages if ADB_DEBUG is configured.

Fix for ADB hang while probing, based on information from Colin Wood:
Rather than waiting indefinitely for a mouse or extended keyboard to
respond -- which may not even exist -- time out after 2 seconds and
continue. This corrects a very common problem with the MRG-based ADB
driver that has bitten many people running 1.3.

Don't attempt to open the ADB device if it hasn't been initialized.
Also, don't allow more than one instance to be configured.

Update from John Wittkoski: work around problem with mice that claim to
support Extended Mouse Protocol, but really don't; the Logitech Mouseman
is one such mouse (model M-AC13-4MD).

Recognize Apple Standard Keyboard (ISO layout)

branches: 1.31.2;
port-mac68k/4158: current kernel doesn't recognize some adb devices.
Patch applied. Thanks to SUNAGAWA Keiki for the change-request.

Make #include directives consistent. All MD headers are of the form:

#include <mac68k/{dev,mac68k}/foo.h>

o Fixed definition of PowerBook extended keyboard from previous commit
o Added recognition of some additional ADB device types

Add recognition of more keyboard types (including ISO layouts)

branches: 1.27.4;
Add support for Mouse Systems A3 mouse. From Colin Wood.

Use the new opt_mrg_adb.h header.

Updates from John Wittkoski for new ADB driver.

Some changes to make ADB work when compiled with -O2:

- extdms_done is modified by things outside of our direct control;
it needs to be declared `volatile'
- CountADBs() fails when we call it the second time. We can work
around this by telling extdms_init() how many ADB devices we have,
only calling CountADBs() once.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Test for serial console in adb_init() early, and abort if we're using it.
Initiialize ROM vectors regardless of this so that the PRAM RTC read and
write work regardless of whether a serial console is in use.

Minor fix to last patch--from Taras.

Minor update from Taras Ivanenko <ivanenko@ctpa03.mit.edu>.

MicroSpeed mouse support from Taras Ivanenko <ivanenko@ctpa03.mit.edu>.
Also some updates to actually used #defined constants instead of numeric
constants.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

via.h -> machine/viareg.h.

Remove an extra "talk" command--from Ken Nakata <kenn@remus.rutgers.edu>

Add support for Extended Apple Mouse Protocol from
Ken Nakata <kenn@remus.rutgers.edu>.

Changes from Walter Ruetten <walter@ghpc8.ihf.rwth-aachen.de>.
This forces the need for booter version 1.8.

Weren't quite ready for the last change.

Rearrange a bit.

Remove a compile warning.

First pass of KNFication. Needs more.

Mac ROM Glue changes from grantham@tenon.com.

new RCS ID format.

Nuke a CVS Log entry. Attribute introspection to Brad.

Remove need for "bounds.h." Brad can still use it if he wants ;-)

branches: 1.4.2;
Moved adbsys.h grfioctl.h and keyboard.h to include to make desktop
and X compile more cleanly.

Fixed a few bugs in the key-repeat function and disabled key-repeat
when /dev/adb is closed to avoid infinite repeat problem. Brad claims
that he's got this solved in his version...

Cleanup a printf, raise the probe timeout, and notice if the probe
does time out.

6x10.h: shifted font over by two pixels.
keyboard.h: added constants for commonly used keys and reformatted
array so that gcc would be happy.
adbsys.c: new adb system.
bounds.h: bound-checking macros.
ite.c: new built-in mini-console.
8x14.h: no longer used by built-in console.
adb.c: replaced by adbsys.c

Clean up deleted files.

6x10.h: shifted font over by two pixels.
keyboard.h: added constants for commonly used keys and reformatted
array so that gcc would be happy.
adbsys.c: new adb system.
bounds.h: bound-checking macros.
ite.c: new built-in mini-console.
8x14.h: no longer used by built-in console.
adb.c: replaced by adbsys.c

#ifdef out debug garbage.

Drop 3rd and 4th clauses. Approved by Brad Grantham (copyright holder).

branches: 1.11.122;
prepare for ELF:
- add "%" prefix to register names in assembly code.
- use _C_LABEL() where necessary.
- use packed structures where necessary to match the old ABI.

branches: 1.10.8; 1.10.12;
Merge wscons work onto the main development branch.

branches: 1.9.2; 1.9.10;
o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Use the <machine/asm.h> macros, and don't call code that we haven't
included.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Update from John Wittkoski: work around problem with mice that claim to
support Extended Mouse Protocol, but really don't; the Logitech Mouseman
is one such mouse (model M-AC13-4MD).

branches: 1.5.8;
Add support for Mouse Systems A3 mouse. From Colin Wood.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Add support for Extended Apple Mouse Protocol from
Ken Nakata <kenn@remus.rutgers.edu>.

Mac ROM Glue changes from grantham@tenon.com.

Drop 3rd and 4th clauses. Approved by Brad Grantham (copyright holder).

branches: 1.25.4;
Factor out ADB spin-wait timeout loop, and use it for synchronous
operations to access the PRAM RTC, etc. in the IIsi and Cuda cases.
Thanks to Martin Husemann for pointing out the flaw.

This is a slightly more thorough workaround for the issue Martin found
in PR 37611, as it affected more than just adb_read_date_time().

branches: 1.24.40;
MI softintr(9)'fy.
Probably problematic, but LC630 is running at single user.

branches: 1.23.26;
merge ktrace-lwp.

branches: 1.22.10;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.21.2;
G/c the traceq; nothing uses it.

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.19.4; 1.19.8; 1.19.16;
Stabilize ADB support for some non-Apple ADB peripherals. This is the
second (and final) part of the fix for PR 10086. (There are no longer
any infinite-wait busy loops in the ADB driver!)

branches: 1.18.4;
Add and use macros to build ADB FLUSH, LISTEN, and TALK commands.

Garbage collect adb_initted.

We need adb_initted in a couple of places; declare it here.

branches: 1.15.2; 1.15.4; 1.15.8;
Unfortunately, several changes that are intermingled:
- Add initial IOP support. ADB doesn't work yet for me, but it's here so
that others will be encouraged to work on it. ADB_HW_IOP basically
is configured as a NOP so that serial consoles will continue to work.
- Roll via1_intr and via2_intr into the intr.c scheme--this also required
changing rtclock_intr to grovel the stack differently so that hardclock
gets the right arguments and softclock() doesn't get all reentrant.
- Make via1 interrupts parallel to via2 interrupts--handlers get a pass-
through pointer and we can register handlers. Register via1 interrupt
with intr_establish()--normally level 1, level 6 for A/UX scheme.
- Use intr_establish() to set real via2 interrupt handler instead of the
hacked function pointer.
- Reorganize adb-direct interrupts so that a function call is removed.
- Implement A/UX interrupts for all Quadras right now. We may need to
special case some Quadras, but Linux folks are reporting success on
several models.
- Fix intrnames to be accurate for the normal, PSC, and A/UX interrupt
configurations.

branches: 1.14.2; 1.14.6;
o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Make this compile _and_ link with DEBUG / ADB_DEBUG defined.

Don't hide the ADB hardware types when we're building an MRG_ADB kernel;
we really do need them around, anyway.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Mostly KNF. There's still a bunch of ugly comments and some problems
with long lines, but this is at least a big step in the right direction.

Unify ADB options and place them all into opt_adb.h. Provide a knob to
enable ADB debugging messages if ADB_DEBUG is configured.

Update from John Wittkoski: work around problem with mice that claim to
support Extended Mouse Protocol, but really don't; the Logitech Mouseman
is one such mouse (model M-AC13-4MD).

branches: 1.7.8;
Add support for Mouse Systems A3 mouse. From Colin Wood.

Updates from John Wittkoski for new ADB driver.

Some changes to make ADB work when compiled with -O2:

- extdms_done is modified by things outside of our direct control;
it needs to be declared `volatile'
- CountADBs() fails when we call it the second time. We can work
around this by telling extdms_init() how many ADB devices we have,
only calling CountADBs() once.

Implement poll(2).

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

First pass of KNFication. Needs more.

Mac ROM Glue changes from grantham@tenon.com.

Add pbbat(4)

Now it is possible to monitor the PowerBook 1xx AC adaptors and battery via
envsys(4).

Stop echoing keys for special key sequences.

This includes brightness and emulated mouse buttons.

Add support for backlight control.

Currently it is only supported on PowerBooks.
The backlight can be turned off or on via pmf(9) events on wsdisplay(4)
devices.

Add support for brightness control on Powerbook 1xx.

branches: 1.39.2;
Pass event up to adb device.

While here do the same for macppc.

Addresses PR/58303

branches: 1.38.4;
Driver "kqfilter" entry points return an error code, so if an invalid
filter is requested, return EINVAL rather than 1.

Use seltrue_filtops rather than rolling our own with filt_seltrue.

Change the kqueue filterops::f_isfd field to filterops::f_flags, and
define a flag FILTEROP_ISFD that has the meaning of the prior f_isfd.
Field and flag name aligned with OpenBSD.

This does not constitute a functional or ABI change, as the field location
and size, and the value placed in that field, are the same as the previous
code, but we're bumping __NetBSD_Version__ so 3rd-party module source code
can adapt, as needed.

NetBSD 9.99.89

Use sel{record,remove}_knote().

branches: 1.34.8; 1.34.16;
Use C99 initializer for filterops

Mostly done with spatch with touchups for indentation

@@
expression a;
identifier b,c,d;
identifier p;
@@
const struct filterops p =
- { a, b, c, d
+ {
+ .f_isfd = a,
+ .f_attach = b,
+ .f_detach = c,
+ .f_event = d,
};

Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.32.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

comment out unused code (for documentation purposes)

branches: 1.30.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.29.12; 1.29.22;
Drop 3rd and 4th clauses. Approved by Brad Grantham (copyright holder).

use device_lookup_private to get softc

branches: 1.27.2; 1.27.4; 1.27.6; 1.27.8;
Welcome to 4.99.55:

- Add a lot of missing selinit() and seldestroy() calls.

- Merge selwakeup() and selnotify() calls into a single selnotify().

- Add an additional 'events' argument to selnotify() call. It will
indicate which event (POLL_IN, POLL_OUT, etc) happen. If unknown,
zero may be used.

Note: please pass appropriate value of 'events' where possible.
Proposed on: <tech-kern>

branches: 1.26.10; 1.26.14;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.25.2;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.24.8; 1.24.10;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.23.2; 1.23.4; 1.23.10;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.22.14;
Use device_cfdata().

branches: 1.21.4; 1.21.6; 1.21.8; 1.21.10; 1.21.12;
merge ktrace-lwp.

branches: 1.20.2;
Rename shadowing variable.

branches: 1.19.2;
don't require that the aed unit number be zero.

de-__P, remove register, ansify, b* -> mem*.

__KERNEL_RCSID()

branches: 1.16.6;
si_ -> sel_

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Use CFATTACH_DECL().

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.10.6; 1.10.8; 1.10.12; 1.10.20;
New callout mechanism with two major improvements over the old
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.

Merge wscons work onto the main development branch.

ite_polling -> adb_polling

branches: 1.7.2; 1.7.4; 1.7.10; 1.7.12; 1.7.16;
Add NetBSD RCS Id's

o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Protect a keyup event for ADBK_3 in the mouse button emulation code with
ALTXBUTTONS, so as to not cause trouble with some non-US English
keyboards. From SUNAGAWA Keiki, PR 6613.

Remember to recognize modifier key releases when the Option key is down.
Fixes art of PR 6444. Tested by Frederick Bruckman <fb@enteract.com>.

Take emulated button state into account before handing off mouse events.
Fixes part of PR 6444. Tested by Frederick Bruckman (fb@enteract.com).

Make the kernel compile when the ALTXBUTTONS option is set.
Fixes PR#6363 from Frederick Bruckman (fb@enteract.com)

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.8.12; 1.8.22;
Drop 3rd and 4th clauses. Approved by Brad Grantham (copyright holder).

branches: 1.7.78;
merge ktrace-lwp.

de-__P, remove register, ansify, b* -> mem*.

branches: 1.5.6;
Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.4.6; 1.4.8; 1.4.12; 1.4.20;
New callout mechanism with two major improvements over the old
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.

Merge wscons work onto the main development branch.

branches: 1.2.2; 1.2.10;
o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Stop echoing keys for special key sequences.

This includes brightness and emulated mouse buttons.

branches: 1.27.10;
Remove unnecessary (and unimplemented) WSKBD_*BELL ioctls in kbd drivers.

It looks the only ioctl(4) to be implemented for WSKBDIO_*BELL in
the backend keyboard driver is WSKBDIO_COMPLEXBELL.
All other BELL ioctls (WSKBDIO_BELL, WSKBDIO_SETBELL, WSKBDIO_GETBELL,
WSKBDIO_SETDEFAULTBELL, and WSKBDIO_GETDEFAULTBELL) are handled in the
MI wskbd driver (in wskbd_displayioctl() in src/sys/dev/wscons/wskbd.c).

Merge thorpej-cfargs2.

branches: 1.25.8;
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: 1.24.44;
Mark a potentially unused variable

branches: 1.23.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.22.8; 1.22.18;
return the right values for ioctl(WSKBDIO_GTYPE) and ioctl(WSMOUSEIO_GTYPE)
fixes PR 23991

branches: 1.21.66;
Fix more fallout from caddr_t removal.

Since kbd_adbcomplete() uses the buffer parameter for accessing a
(sic!) data buffer, make it uint8_t *, instead of casting the pointer
everywhere it is actually used.

While here, fix prototype naming issue. One of these days, the code
should be converted to either all kbd_*, or all akbd_*.

Cast to uint8_t* or char* before indexing or doing pointer arithmetic.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.18.26;
merge ktrace-lwp.

branches: 1.17.10;
de-__P, remove register, ansify, b* -> mem*.

__KERNEL_RCSID()

branches: 1.15.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

branches: 1.12.2; 1.12.8;
HZ -> hz

branches: 1.11.2;
Attach exactly one keyboard to the wscons console.

Stabilize ADB support for some non-Apple ADB peripherals. This is the
second (and final) part of the fix for PR 10086. (There are no longer
any infinite-wait busy loops in the ADB driver!)

branches: 1.9.2;
Since interrupts are now enabled during ADB autoconfig, it's possible to get
a keyboard event before wskbd is attached. Make sure we've done that before
passing an event to kbd_intr(), which in turn hands off to wskbd_input().
This is another part of the fix for PR 10086.

Only the first device that we're sure is a keyboard should be attached
as the wskbd console device. (Part of the fix for PR 10086.)

branches: 1.7.2;
Add and use macros to build ADB FLUSH, LISTEN, and TALK commands.

Include mac68k/dev/akbdmap.h, not macppc/dev/akbdmap.h. Fixes PR 9435
filed by Dave Huang <khym@bga.com>.

Merge wscons work onto the main development branch.

branches: 1.4.2;
These files were created by repository copy for use on the
scottr-mac68k-wscons branch.

branches: 1.3.2;
Add NetBSD RCS Id's

o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Remove clause 3 and 4 from TNF licenses

branches: 1.9.52; 1.9.54; 1.9.56;
add control codes for virtual console switching
looks like I forgot to commit this ages ago...

branches: 1.8.20; 1.8.22;
merge ktrace-lwp.

branches: 1.7.2;
Add ADB Portuguese (pt_PT) keyboard map, from Rui Paulo in PR/30126

branches: 1.6.10;
Change to fix PR 25689 for Swedish ADB keyboards
- KC(52), KS_Mode_switch,KS_Multi_key,
+ KC(58), KS_Mode_switch,KS_Multi_key,

Add the Spanish keymap.

While here, add support for the Num Lock key (with all needed changes in the
numeric keypad), Print Screen, Hold Screen, Pause, Insert, and Delete.

Ok'ed by silence in port-mac68k@.

branches: 1.4.2; 1.4.6;
Merged mac68k and macppc keayboards, since they are the same. The file
could move to <arch/mac> if one day we create it.

Fixed french keymap: option was not mapped correctly, thus making
impossible to use |{}[] (tested).
Added jp keymap from PR/15438, and sf, sv, de and uk keymaps from OpenBSD.
(all untested).

Added a french keyboard layout.

branches: 1.2.22;
Merge wscons work onto the main development branch.

branches: 1.1.2; 1.1.4;
file akbdmap.h was initially added on branch scottr-mac68k-wscons.

split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.9.78; 1.9.88;
Fix more fallout from caddr_t removal.

Since kbd_adbcomplete() uses the buffer parameter for accessing a
(sic!) data buffer, make it uint8_t *, instead of casting the pointer
everywhere it is actually used.

While here, fix prototype naming issue. One of these days, the code
should be converted to either all kbd_*, or all akbd_*.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.7.26;
merge ktrace-lwp.

branches: 1.6.10;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.5.28;
Merge wscons work onto the main development branch.

branches: 1.4.2;
These files were created by repository copy for use on the
scottr-mac68k-wscons branch.

branches: 1.3.2;
Add NetBSD RCS Id's

o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Fix matching of the PowerBook 500 trackpad.

Addresses PR port-mac68k/58883.

Usability enhancement.

For the emulated middle and right mouse buttons, one has to hold the combo keys
and it is sent on the mouse click.

Patch from PR applied.

Addresses PR mac68k/58672.

branches: 1.26.10;
Fix WSMOUSEIO_GTYPE so that X does not fail to initialize wsmouse(4).

Merge thorpej-cfargs2.

branches: 1.24.8;
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: 1.23.4;
Fix inverted Y-axis value passed to wsmouse_input(9).

Note this is what src/sys/arch/macppc/dev/ams.c does as
"upward (moving the mouse forward) is positive" as noted in wsmouse(9):
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/macppc/dev/ams.c#rev1.4

Reported and tested by @NonameInsect on his SE/30 and Xorg server.
Should be pulled up to netbsd-8 and netbsd-9.

branches: 1.22.22; 1.22.34;
Mark a potentially unused variable

branches: 1.21.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.20.8; 1.20.18;
return the right values for ioctl(WSKBDIO_GTYPE) and ioctl(WSMOUSEIO_GTYPE)
fixes PR 23991

branches: 1.19.66;
Use a helper variable so that we can index it as an array.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.17.4;
Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

branches: 1.16.20; 1.16.22;
merge ktrace-lwp.

branches: 1.15.10;
de-__P, remove register, ansify, b* -> mem*.

__KERNEL_RCSID()

branches: 1.13.6;
Use CFATTACH_DECL().

Declare all cfattach structures const.

Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

branches: 1.10.4; 1.10.8;
In ems_init(): make sure there's valid data in the buffer after sending
a TALK command to a device. Noticed by Ken'ichi Ishizaka.

Stabilize ADB support for some non-Apple ADB peripherals. This is the
second (and final) part of the fix for PR 10086. (There are no longer
any infinite-wait busy loops in the ADB driver!)

branches: 1.8.2;
Since interrupts are now enabled during ADB autoconfig, it's possible
to get a mouse event before wsmouse is attached. Make sure we've done
that before passing an event to wsmouse_input().

branches: 1.7.2;
Add and use macros to build ADB FLUSH, LISTEN, and TALK commands.

Merge wscons work onto the main development branch.

branches: 1.5.2;
These files were created by repository copy for use on the
scottr-mac68k-wscons branch.

branches: 1.4.2;
Add NetBSD RCS Id's

o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

Add support for the Contour 3-button mouse, inadvertantly missed
in the ADB split a few months back. Noticed by Takashi NAKAMURA.

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Grammar and spelling fixes, mainly in comments. A few in documentation,
logging, test description, and SCSI ASC/ASCQ assignment descriptions.

Usability enhancement.

For the emulated middle and right mouse buttons, one has to hold the combo keys
and it is sent on the mouse click.

Patch from PR applied.

Addresses PR mac68k/58672.

branches: 1.9.74;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.8.78; 1.8.88;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.7.26;
merge ktrace-lwp.

branches: 1.6.10;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.5.28;
Merge wscons work onto the main development branch.

branches: 1.4.2;
These files were created by repository copy for use on the
scottr-mac68k-wscons branch.

branches: 1.3.2;
Add NetBSD RCS Id's

o Change various attach arg and softc datatypes to ints.
o Use explicit typecasts when interfacing with MRG data

Should fix port-mac68k/6839. Patch supplied by
Frederick Bruckman <fb@enteract.com>

New ADB "bus" interface:
o Separate ms and kbd drivers
o aed device for compatibility
o debug message cleanup in hardware direct support (from scottr)

Move on-board I/O and NuBus drivers to their own directories
via repository copy, and make the necessary adjustments to reflect
the moved files.

Update for bus.h changes.

Update for changes to config.

branches: 1.24.2;
Remove advertising clause.

Set up base address of ASC for IIfx, per GtMFH.

Make #include directives consistent. All MD headers are of the form:

#include <mac68k/{dev,mac68k}/foo.h>

branches: 1.21.4;
s/mac68k_btop/m68k_btop/

Update copyright and license.

Remove redundant info from bus_space_map() diagnostic in ascattach()

Add a bus space tag field to obio_attach args, initialize it in
obio_search(), and use it in the ASC driver. Thanks to Jason for
pointing this out. Minor KNFing while I'm here.

Complete revamp of Apple Sound Chip support. The ASC can now be accessed
as a real device whose registers and buffers are available through mmap(2),
which makes further development of the driver considerably less painful.

branches: 1.16.2;
Convert to bus.h; this removes the need for the ASCBase global.

Convert all foo_match() functions to use a `struct cfdata *' for their
second argument. The NuBus autoconfig code had to be reorganized as a
result of this, and looks much more like a directly-attached bus now.
These changes eliminate __BROKEN_INDIRECT_CONFIG.

Check to make sure that ASCBase is accessable before claiming that we
have an Apple Sound Chip. Make sure that we have configured the device
before allowing accesses to ASC memory. Among other things, this
prevents the 660AV and 840AV from getting a kernel bus error when trying
to beep on the console.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Remove bogus assignment.

Fix warning and use __P for prototypes.

First pass of KNFication. Needs more.

new RCS ID format.

Make this into more of a device so it can be probed and attached. Nuke
RCS/CVS Log. Make ASCBase an offset instead of an absolute.

branches: 1.4.2;
Minor mods. Get rid of constants, or update to use a better default
value.

Missed some warnings...

Clean up some warnings, mainly w/ timeout().

Add basic sound support and a beeping (instead of flashing) console...
from Brad Grantham.

Complete revamp of Apple Sound Chip support. The ASC can now be accessed
as a real device whose registers and buffers are available through mmap(2),
which makes further development of the driver considerably less painful.

branches: 1.3.8;
First pass of KNFication. Needs more.

new RCS ID format.

Add basic sound support and a beeping (instead of flashing) console...
from Brad Grantham.

Move on-board I/O and NuBus drivers to their own directories
via repository copy, and make the necessary adjustments to reflect
the moved files.

Remove advertising clause.

branches: 1.3.4;
Update copyright and license.

Complete revamp of Apple Sound Chip support. The ASC can now be accessed
as a real device whose registers and buffers are available through mmap(2),
which makes further development of the driver considerably less painful.

branches: 1.1.6;
Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

Dead, unused, kaput.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

First pass of KNFication. Needs more.

new RCS ID format.

6x10.h: shifted font over by two pixels.
keyboard.h: added constants for commonly used keys and reformatted
array so that gcc would be happy.
adbsys.c: new adb system.
bounds.h: bound-checking macros.
ite.c: new built-in mini-console.
8x14.h: no longer used by built-in console.
adb.c: replaced by adbsys.c

Clean up deleted files.

Update to current work in progress. This includes an update to
use config.new.
Numerous updates to console so it works better on the SE/30 screen.
Some nice changes from Brad Parker for handling NuBUS and an ethernet
driver that I haven't worked on, yet.

branches: 1.1.1;
Initial revision

Clean up deleted files.

Need the extra byte in the temp buffer to avoid overrun in scrollup on
wide screens.

Don't blow up on huge screens.

Reset sccaddr if we're resetting the video address.
Nuke some debugging output.

Minor mods. Get rid of constants, or update to use a better default
value.

Clean up some warnings, mainly w/ timeout().

Various fixes, changes and so forth by lkestel. Among them should be
support for > 1-bit modes (slow...)...

ioctl now takes struct proc *.

Nuke final references to chars.h. It wasn't being used.

Take out coninit and clean up some warnings.

Basic cleanup. Get rid of my_frame for frame.

Add basic sound support and a beeping (instead of flashing) console...
from Brad Grantham.

Add (broken) support for DDB. Also fix a bug in console that confused the
scrollback. Clean up includes a tad.

Fix includes to use ../mac68k instead of ../mac and add some semi-colons
to a couple of default: switches. gcc2 doesn't mind not having them,
but gcc1 sure does.

Update to current work in progress. This includes an update to
use config.new.
Numerous updates to console so it works better on the SE/30 screen.
Some nice changes from Brad Parker for handling NuBUS and an ethernet
driver that I haven't worked on, yet.

branches: 1.1.1;
Initial revision

Clean up deleted files.

Add basic sound support and a beeping (instead of flashing) console...
from Brad Grantham.

Update to current work in progress. This includes an update to
use config.new.
Numerous updates to console so it works better on the SE/30 screen.
Some nice changes from Brad Parker for handling NuBUS and an ethernet
driver that I haven't worked on, yet.

branches: 1.1.1;
Initial revision

Clean up deleted files.

This should probably be deprecated--minor slash job.

Update to current work in progress. This includes an update to
use config.new.
Numerous updates to console so it works better on the SE/30 screen.
Some nice changes from Brad Parker for handling NuBUS and an ethernet
driver that I haven't worked on, yet.

branches: 1.1.1;
Initial revision

Move on-board I/O and NuBus drivers to their own directories
via repository copy, and make the necessary adjustments to reflect
the moved files.

Update for changes to config.

* Disable parity checking on all devices until we find a better way to
deal with cheap CD-ROMs and other devices that do not appear to have
any way to enable parity generation. In the future, it might be nice
to have this configurable on a per-device basis with back-to-back
parity errors automatically disabling parity for the device. That
would require some MI changes.
* Handle unaligned and odd-length transfers.
This could probably be handled better in the future.

A first cut at faster SCSI for non-AV quadras. Could probably perform better,
but is a marked improvement. This takes advantage of a pseudo-DMA hardware
hack of Apple's that exposes a 16-bit register that the Apple-designed
memory controller acts like a DMA controller and handshakes into or out
of the FIFO. Wierd.

branches: 1.11.4;
Merge scsipi branch in the mainline. This add support for ATAPI devices
(currently only CD-ROM drives on i386). The sys/dev/scsipi system provides 2
busses to which devices can attach (scsibus and atapibus). This needed to
change some include files and structure names in the low level scsi drivers.

branches: 1.10.2; 1.10.4;
Copyright foo.

Fix prototype for espmatch()

Convert to generalized VIA interrupt registration

mac68k-specific portion of m.i. ncr53c9x driver.

branches: 1.6.6;
Convert all foo_match() functions to use a `struct cfdata *' for their
second argument. The NuBus autoconfig code had to be reorganized as a
result of this, and looks much more like a directly-attached bus now.
These changes eliminate __BROKEN_INDIRECT_CONFIG.

Fill in sc_link.max_target

- Move offset for 2nd scsi controller (Q900/Q950/WGS95) to 0x402
instead of 0x400.
- Restructure interrupt handling for more performance--continue to
read/write data as long as the device keeps us in a data xfer phase.
There is still a lot of room for speed improvement here. Perhaps it
lies is speeding up the interrupt path in general?

Improve reliability on my Q700, at least. Was getting the occasional
glitch--an extra byte on occasion.

macs with scsibase offset 0x10000 from iobase use a SCSI CLK of 16.5MHz
(off PrimeTime)--all others appear to use 25MHz.

Interrupt-driven, but slow, NCR 53c96 driver for the 040-based macs. Contains
some guesses for the machines that have two of these buggers (I don't have
such a machine). This driver is a copy of the sparc/alpha esp with a
minimum of changes--after we get it performing a bit more respectably,
we should see about re-normalizing the sources.

mac68k-specific portion of m.i. ncr53c9x driver.

branches: 1.1.6;
Interrupt-driven, but slow, NCR 53c96 driver for the 040-based macs. Contains
some guesses for the machines that have two of these buggers (I don't have
such a machine). This driver is a copy of the sparc/alpha esp with a
minimum of changes--after we get it performing a bit more respectably,
we should see about re-normalizing the sources.

Move on-board I/O and NuBus drivers to their own directories
via repository copy, and make the necessary adjustments to reflect
the moved files.

Forgot a declaration in last change to esp.c.

A first cut at faster SCSI for non-AV quadras. Could probably perform better,
but is a marked improvement. This takes advantage of a pseudo-DMA hardware
hack of Apple's that exposes a 16-bit register that the Apple-designed
memory controller acts like a DMA controller and handshakes into or out
of the FIFO. Wierd.

branches: 1.3.8;
mac68k-specific portion of m.i. ncr53c9x driver.

branches: 1.2.6;
Improve reliability on my Q700, at least. Was getting the occasional
glitch--an extra byte on occasion.

Interrupt-driven, but slow, NCR 53c96 driver for the 040-based macs. Contains
some guesses for the machines that have two of these buggers (I don't have
such a machine). This driver is a copy of the sparc/alpha esp with a
minimum of changes--after we get it performing a bit more respectably,
we should see about re-normalizing the sources.

Add support for backlight control.

Currently it is only supported on PowerBooks.
The backlight can be turned off or on via pmf(9) events on wsdisplay(4)
devices.

branches: 1.2.26;
Drop inappropriate WSFB_VRAM_IS_RAM bit from fbi_flags;
framebuffer is not regular RAM.

Thanks to jmcneill@ and macallan@ for kind explanation
(at elsewhere).

branches: 1.1.10;
Add genfb(4) driver for mac68k grfbus.
1, 2, 4, 8, 15, and 32 color-depths are supported.

ANSI colors on console are functional for depth >= 4.

Graphic applications based on wsfb API should work, provided
they can correctly handle fbi_fboffset and your color depth.

wsfb driver of Xorg 1.20 and mlterm-fb (framebuffer version of
x11/mlterm) work fine for depth == 1 || depth >= 8.

For depth == 8 (256 colors), graphic applications require
colormap callback, which is currently supported for some
internal graphic adapters, and only Civic (found on Quadra
AV series) was tested. Register definition and its usage are
taken from Linux. You can easily support other adapters if
Linux supports that.

Have fun, and any problem reports are welcomed!

Merge wscons work onto the main development branch.

branches: 1.63.2;
Include resourcevar.h for p_limit/rlimit definition.

Add the guts of mlockall(MCL_FUTURE). This requires that a process's
"memlock" resource limit to uvm_mmap(). Update all calls accordingly.

vm_size_t -> vsize_t

branches: 1.60.4;
Include uvm/uvm.h instead of uvm/uvm_extern.h because we need the prototype
for uvm_unmap() in order to compile a kernel with GRF_COMPAT defined.

Fix provided by Frederick Bruckman <fb@enteract.com> in PR #7237.

completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

branches: 1.58.2;
vm_offset_t -> {paddr_t, vaddr_t}

fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

remove unused share map code from UVM:
- update calls to uvm_unmap_remove/uvm_unmap (mainonly boolean arg
has been removed)

New and improved console framebuffer initialization and autoconfig. This
resolves a great many issues, including Performa 58x interrupt handling
and offset displays on some models.

Programs that depend on the old (pre-NetBSD 1.1) grf interface may break.
That's actually a separate issue uncovered by this code, not caused by it.

Add a GRF_COMPAT option so that old-style grf ioctl() code can be
removed from the kernel.

Store the PA of the framebuffer in the softc. This eliminates the need
for the sc_phys callback; we can just store the PA in the grfbus attach
args, rather than a function pointer, which simplifies the code nicely.

Move on-board I/O and NuBus drivers to their own directories
via repository copy, and make the necessary adjustments to reflect
the moved files.

Checkpoint of UVM work to date. This includes a fully-functioning
MACHINE_NEW_NONCONTIG interface implementation, which is now enabled
on all systems. Thanks to Jason Thorpe for his work on the hp300 port,
from which most of the code used here was derived.

XXX In spite of the fact that it works on the hp300, UVM does not (yet)
work well under load on mac68k.

Now, correct the problem the correct way: s/cfattach/cfdriver/

Back out previous change.

Missed a change for the updated config(8).

Update for changes to config.

Make grfdebug a patchable variable, and default to no debugging messages.
Noticed by Hauke Fath.

branches: 1.45.4;
Make #include directives consistent. All MD headers are of the form:

#include <mac68k/{dev,mac68k}/foo.h>

Overhaul grf drivers to correct recent problems with X and dt
(address error faults), as well as other reported problems:

- Simplify grfmv_phys() to work like grfiv_phys(), and eliminate the
second argument to both, as we don't use it anyway.
- Handle fbbase and fboff consistently throughout. Closes PR 3862.
- Eliminate grfaddr() by pulling it into grfmmap(), which is the
only place it was used, previously.
- grfmap() now gets the physical address of the framebuffer from
the appropriate driver, rather than try to compute it by itself.
Be careful with aligning the base to a page address and increase
the length of the mapped region appropriately. Closes PR 2867.

branches: 1.43.4;
s/mac68k_round_page/m68k_round_page/ s/mac68k_trunc_page/m68k_trunc_page/
s/mac68k_btop/m68k_btop/

Implement new NuBus slot space mapping/probing code, utilizing bus.h (and
our MD bus_space_probe() extension). This has several side effects:

- NuBus drivers must map and unmap slot space, rather than relying
on this happening before they are attached.
- Functions exported to NuBus drivers from nubus.c now need to be
supplied with a bus space tag/handle pair.
- Old bus map/peek functions can be garbage collected, as can pmap
support for the same.

Because of some current limitations of the bus space specification, we
are violating the abstraction in grf_mv (NuBus grf driver). All such
violations are clearly marked /* XXX */, and must be addressed when
the specification is updated.

NUBUS_SLOT_TO_PADDR -> NUBUS_SLOT2PA

We need bus.h now, due to recent nubus_attach_args change.

branches: 1.39.6;
Convert all foo_match() functions to use a `struct cfdata *' for their
second argument. The NuBus autoconfig code had to be reorganized as a
result of this, and looks much more like a directly-attached bus now.
These changes eliminate __BROKEN_INDIRECT_CONFIG.

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Implement poll(2).

Attach ite semantics to the appropriate grf device, instead of obio.

Add a way to tell grf_establish() that internal video doesn't actually
occupy a slot. This is necessary so that GRFIOCMAP can find the correct
physical address of the framebuffer. Fixes P550, some LC models, and
perhaps the PB520.

branches: 1.33.4;
New grf attachment code, mostly by Jason Thorpe with some cleanup by me.
This will allow dt and X to work with a generic kernel, rather than
compiling different kernels that attach grf0 to a NuBus adapter or
internal video.

Do not depend on the nubus being mapped in one huge segment.

Prototype for -Wall -Wstrict-prototypes -Wmissing-prototypes -Wno-uninitialized
Also change the device probing scheme to use something a bit more rational.
A current side-effect is that nubus cards are double-mapped. I expect
to fix that shortly.
Also change splclock() to block everything but serial hardware interrupts.

New device attachment scheme:

- split softc size and match/attach out from cfdriver into
a new struct cfattach.

- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.

Fix a warning.

Add another routine for the grf display-specific drivers to return a physical
address.

Put in a cast to make compiler happy.

Fix a bug I introduced earlier.

Add missing interface for getting a grfmode structure from kernel.

Fix grfmap() as well as grfmmap().

Set and use new fboff element from grfmode structure.

Fix buglet that was missed when converting nubus to non pa==va mapping.

Add new nubus handling that's much more robust.
Update via, if_ae, and grf accordingly.
Revamp grf.

Handle grf_softc in the config.new manner.
Should have been done long ago.

First pass of KNFication. Needs more.

Update interrupts to use (void *client_data) instead of (int unit) as
parameter to interrupt function.

Switch grfmap and grfmmap.

Do iteon() and iteoff(). Right now, they just clear/draw the cursor and
clear the screen. "We" should look at updating these further.

Don't count video interrupts.

Add macvideo_intr to handle video interrupts. Currently has behavior
that was previously in slot_noint().

Nuke DEBUG.

Fix a buglet in computation of fbsize. Pointed out by monroe@cs.pdx.edu.

new RCS ID format.

Make internal video look like a grf device so that desktop and X can use
it. GRFIOCMAP modifies addr to include the offset into the screen where
the first pixel is. Not a very clean way to do it -- we should add a
field to grfinfo for offset.

Moved adbsys.h grfioctl.h and keyboard.h to include to make desktop
and X compile more cleanly.

Minor hacks to get this to compile for now. ite.c now uses the proper
consdev structure to keep itself from crashing...

branches: 1.7.2;
Minor mods. Get rid of constants, or update to use a better default
value.

Don't even pay lip service to HPUXCOMPAT, now COMPAT_HPUX.

Clean out some old printf()s and get rid of MAP_FILE reference.

Include-cop.

Update grf.h to increment a number of devices when it configures.
Fix a small bug in serial.
Both from Brad, Lawrence, and/or Mike.

Update to current work in progress. This includes an update to
use config.new.
Numerous updates to console so it works better on the SE/30 screen.
Some nice changes from Brad Parker for handling NuBUS and an ethernet
driver that I haven't worked on, yet.

branches: 1.1.1;
Initial revision

in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

branches: 1.28.18;
include "ioconf.h" to get the 'void <driver>attach(int count);' prototype.

add a new "fo_mmap" fileops method to allow use of arbitrary uvm_objects for
mappings of file objects. move vnode-specific details of mmap()ing a vnode
from uvm_mmap() to the new vnode-specific vn_mmap(). add new uvm_mmap_dev()
and uvm_mmap_anon() convenience functions for mapping character devices
and anonymous memory, and replace all other calls to uvm_mmap() with those.
use the new fileop in drm2 so that libdrm can use mmap() to map things
like on other platforms (instead of the ioctl that we have used so far).

branches: 1.26.2; 1.26.4;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.25.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

Add missing cast (to make it compilable)

kill VM_DEFAULT_ADDRESS use

branches: 1.22.8; 1.22.18; 1.22.22;
defflag GRF_COMPAT.

branches: 1.21.10; 1.21.30; 1.21.32;
fallout from v_specinfo removal

branches: 1.20.20; 1.20.26;
Cast to char* before doing pointer arithmetic.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.18.2;
Remove duplicate #includes, patch contributed in private mail
by Slava Semushin <slava.semushin@gmail.com>.

To verify that no nasty side effects of duplicate includes (or their
removal) have an effect here, I've compiled an i386/ALL kernel with
and without the patch, and the only difference in the resulting .o
files was in shifted line numbers in some assert() calls.
The comparison of the .o files was based on the output of "objdump -D".

Thanks to martin@ for the input on testing.

branches: 1.17.10;
Remove now-unused local variable.

Cleaner check for offset to grf_mmap

branches: 1.15.4; 1.15.6; 1.15.8; 1.15.10;
merge ktrace-lwp.

branches: 1.14.10;
de-__P, remove register, ansify, b* -> mem*.

branches: 1.13.6;
__KERNEL_RCSID()

branches: 1.12.2;
Cast VM_DEFAULT_ADDRESS() to a caddr_t.

Introduce "top down" memory management for mmap()ed allocations. This
means that the dynamic linker gets mapped in at the top of available
user virtual memory (typically just below the stack), shared libraries
get mapped downwards from that point, and calls to mmap() that don't
specify a preferred address will get mapped in below those.

This means that the heap and the mmap()ed allocations will grow
towards each other, allowing one or the other to grow larger than
before. Previously, the heap was limited to MAXDSIZ by the placement
of the dynamic linker (and the process's rlimits) and the space
available to mmap was hobbled by this reservation.

This is currently only enabled via an *option* for the i386 platform
(though other platforms are expected to follow). Add "options
USE_TOPDOWN_VM" to your kernel config file, rerun config, and rebuild
your kernel to take advantage of this.

Note that the pmap_prefer() interface has not yet been modified to
play nicely with this, so those platforms require a bit more work
(most notably the sparc) before they can use this new memory
arrangement.

This change also introduces a VM_DEFAULT_ADDRESS() macro that picks
the appropriate default address based on the size of the allocation or
the size of the process's text segment accordingly. Several drivers
and the SYSV SHM address assignment were changed to use this instead
of each one picking their own "default".

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

replace the somewhat strange poll routine with standard nopoll() (a.k.a
seltrue())

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.