wsmouse(4): Make wsmouse_input safe to call from MP-safe interrupts.

XXX pullup-10

wsmouse(4): Nix trailing whitespace.

wsmouse(4): KASSERT(a && b) -> KASSERT(a); KASSERT(b)

Better diagnostics. No other functional change.

wsmouse: add support for "precision scrolling" events and (GET|SET)PARAMS

WSCONS_EVENT_HSCROLL and WSCONS_EVENT_VSCROLL are two new wscons event
types that allow scrolling with a higher precision ("smoothness") than an
emulated scroll wheel, and are useful for touch input drivers.

WSMOUSEIO_GETPARAMS and WSMOUSEIO_SETPARAMS are two new ioctls that allow
the speed and direction of precision scrolling to be configured.

both features were originally implemented in OpenBSD.

Explicitly include generated ioconf.h for struct cfdrivers.

branches: 1.68.18;
Remove redundant includes of malloc.h

Use __arraycount a bunch
Also, DIAGNOSTIC panic -> KASSERT

branches: 1.66.8; 1.66.18;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.65.2;
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.

branches: 1.64.2; 1.64.12; 1.64.16;
Correct copy/paste error in previous.

Initialize the W axis value on open as is already done for the other axes.

- reduce the number of #ifdefs.
- build compat glues if MODULAR.

provide wscons_event compatibility with 5.0.

branches: 1.60.4;
use device_lookup_private to get softc
use device_lookup to get device_t

branches: 1.59.2; 1.59.4;
Make various bits of debug code compile again.

Remove clause 3 and 4 from TNF licenses

branches: 1.57.2; 1.57.4;
use aprint_*_dev and device_xname

Split device_t and softc for wskbd(4), wsmouse(4) and that creepy wsmux(4).

branches: 1.55.10;
Merge jmcneill-pm branch.

branches: 1.54.2; 1.54.4;
aprintify

branches: 1.53.4;
Use callout_setfunc/callout_schedule instead of callout_reset.
Use mstohz for the calculations.

branches: 1.52.6; 1.52.8; 1.52.10;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.51.2; 1.51.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.50.4;
__unused removal on arguments; approved by core.

Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.47.2; 1.47.4;
fix incomplete initializers

integrate kauth.

Use device_cfdata().

Use device_unit().

branches: 1.43.2; 1.43.4;
Add missing closing parenthesis to a diagnostic message.

branches: 1.42.2;
fix compilation problems.

PR/32794: Paul Shupak: Panic in wsmouse code.
Checking the number of events after you've trashed the stack is not very
useful. Instead, break out of the loop if we ran out, printing a message.
Also don't try to inject 0 events; reset our state instead. Maybe having
0 events should be a diagnostic printf at this point? Anyway it is not
nice having the kernel die because the mouse code got confused. Finally,
explain why the array of events is sized funny.

wsevent cleanup:

- Add a wsevent_inject function that atomically adds a set of events to an
event queue and change all code that directly messed with a queue to use it.
- Replace the WSEVENT_WAKEUP macro with a regular function.
- Make WSEVENT_QSIZE, PWSEVENT and splwsevent private definitions to
wsevent.c, instead of exposing them in the header file.
- Make the wsevent_init function take a process to attach to the queue,
instead of leaving this task to the caller (which always did it).

Reviewed in tech-kern@.

Add support to automatically repeat mouse button events in wsmouse(4) and
change wsconsctl(4) so that this is configurable.

This is specially useful for mice that provide page up/down buttons instead
of a real wheel and that do not send events repeatedly from the hardware.
(E.g.: Logitech Marble Mouse.)

No objections in tech-kern@.

branches: 1.38.2; 1.38.4; 1.38.6;
merge ktrace-lwp.

Some devices provide more than three (X, Y, and Z) "directions". So add
a W "coordinate" that can be used for these.
This changes the type of wsmouse_input(). To avoid changing a lot of drivers
a compatibilty #define is provided. Maybe changing all drivers would have
been better?

branches: 1.36.2; 1.36.8;
PR-30566: Poll must not return <sys/errno.h> values.
Start with those places I can easily test.

nuke trailing whitespace

branches: 1.34.8; 1.34.10;
-remove a check of errno against -1, this is nonsense since
we have EPASSTHROUGH
-remove a superflous #if NWSMOUSE

cleanup & uniform descriptor owner handling:
* introduce fsetown(), fgetown(), fownsignal() - this sets/retrieves/signals
the owner of descriptor, according to appropriate sematics
of TIOCSPGRP/FIOSETOWN/SIOCSPGRP/TIOCGPGRP/FIOGETOWN/SIOCGPGRP ioctl; use
these routines instead of custom code where appropriate
* make every place handling TIOCSPGRP/TIOCGPGRP handle also FIOSETOWN/FIOGETOWN
properly, and remove the translation of FIO[SG]OWN to TIOC[SG]PGRP
in sys_ioctl() & sys_fcntl()
* also remove the socket-specific hack in sys_ioctl()/sys_fcntl() and
pass the ioctls down to soo_ioctl() as any other ioctl

change discussed on tech-kern@

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.31.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Use aprint_normal() in cfprint routines.

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

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Don't detach the mouse from the mux just because the mouse device is
opened. Too annoying and unnecessary.

branches: 1.22.8;
Add some DIAGNOSTIC tests.

add/cleanup RCSIDs

Have necessary braces.

Improve debug messages a little.

Change back to have a wseventvar in the softc for event sources. This
way the effect of FIOASYNC survives close()/open(). Later versions
of XFree86 relies on this bug/feature.
Also add some more debug stuff.

Major rototilling of the wsmux code. No user visible changes (except that
many bugs have been fixed).
Changes:
The wskbd, wsmouse, and wsmux are now "sub-classes" of wsevsrc, which is
a source of ws events. This make the structure of those drivers a little
more uniform.
Many bug fixes involving adding and removing devices from muxes.
When a kernel is configured without wsmux there will now be none (unlike
before where you got a console mux anyway).
The kernel now compiles with all combinations of ws devices present.

branches: 1.16.2;
Fix a (very old) pasto.

ANSIfy.

Two changes to the wsmux code:
* Allow the wsmux used by wsdisplay for the keyboard(s) to be explicitely
specified with the kbdmux locator.
* Allow keyboards and mice that have a mux to be opened in the regular way.
These changes should be totally backwards compatible.

branches: 1.13.2; 1.13.4; 1.13.6;
Fix an uninitialised variable which could have caused corruption of the user
button state (and hence spurious mouse clicks) if the event queue filled
up.

Mouse move event should be made before mouse bown event. Without that,
you may got a mouse down event in strange plase.

Absolute pointing device support.
- Wsmouse_input() get new argument 'flag', which indicates whether x/y/z are
relative or absolute.
- Wsmouse get new io controls, WSMOUSEIO_SCALIBCOORDS and
WSMOUSEIO_GCALIBCOORDS.

replace embedded _rcsid[] string by __KERNEL_RCSID(), remove _copyright[]

branches: 1.9.2;
Get the dependencies on NWSMUX right (I hope).

Add the wsmux pseudo device.

Make it possible to detach wsmouse and wskbd.
XXX wskbd probably needs some more work.

branches: 1.6.4;
Remove redundant test if the unit numbers is in range.

Allow the wsmouse device to be opened for writing even if it is already
open, this way ioctl() can be performed on it and wsconsctl works.

add third axis for pointing devices (flying mice)

Insert lots of ``#if NWSMOUSE > 0'' and ``#if NWSDISPLAY > 0'' to make it
possible to have a wsmouse and/or wskbd without having a wsdisplay.

Nuke __BROKEN_INDIRECT_CONFIG.

Initial import of cgd's new wscons code.

wsmouse(4): Nix trailing whitespace.

wsmouse(4): KASSERT(a && b) -> KASSERT(a); KASSERT(b)

Better diagnostics. No other functional change.

wsmouse: add support for "precision scrolling" events and (GET|SET)PARAMS

WSCONS_EVENT_HSCROLL and WSCONS_EVENT_VSCROLL are two new wscons event
types that allow scrolling with a higher precision ("smoothness") than an
emulated scroll wheel, and are useful for touch input drivers.

WSMOUSEIO_GETPARAMS and WSMOUSEIO_SETPARAMS are two new ioctls that allow
the speed and direction of precision scrolling to be configured.

both features were originally implemented in OpenBSD.

Explicitly include generated ioconf.h for struct cfdrivers.

branches: 1.68.18;
Remove redundant includes of malloc.h

Use __arraycount a bunch
Also, DIAGNOSTIC panic -> KASSERT

branches: 1.66.8; 1.66.18;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.65.2;
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.

branches: 1.64.2; 1.64.12; 1.64.16;
Correct copy/paste error in previous.

Initialize the W axis value on open as is already done for the other axes.

- reduce the number of #ifdefs.
- build compat glues if MODULAR.

provide wscons_event compatibility with 5.0.

branches: 1.60.4;
use device_lookup_private to get softc
use device_lookup to get device_t

branches: 1.59.2; 1.59.4;
Make various bits of debug code compile again.

Remove clause 3 and 4 from TNF licenses

branches: 1.57.2; 1.57.4;
use aprint_*_dev and device_xname

Split device_t and softc for wskbd(4), wsmouse(4) and that creepy wsmux(4).

branches: 1.55.10;
Merge jmcneill-pm branch.

branches: 1.54.2; 1.54.4;
aprintify

branches: 1.53.4;
Use callout_setfunc/callout_schedule instead of callout_reset.
Use mstohz for the calculations.

branches: 1.52.6; 1.52.8; 1.52.10;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.51.2; 1.51.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.50.4;
__unused removal on arguments; approved by core.

Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.47.2; 1.47.4;
fix incomplete initializers

integrate kauth.

Use device_cfdata().

Use device_unit().

branches: 1.43.2; 1.43.4;
Add missing closing parenthesis to a diagnostic message.

branches: 1.42.2;
fix compilation problems.

PR/32794: Paul Shupak: Panic in wsmouse code.
Checking the number of events after you've trashed the stack is not very
useful. Instead, break out of the loop if we ran out, printing a message.
Also don't try to inject 0 events; reset our state instead. Maybe having
0 events should be a diagnostic printf at this point? Anyway it is not
nice having the kernel die because the mouse code got confused. Finally,
explain why the array of events is sized funny.

wsevent cleanup:

- Add a wsevent_inject function that atomically adds a set of events to an
event queue and change all code that directly messed with a queue to use it.
- Replace the WSEVENT_WAKEUP macro with a regular function.
- Make WSEVENT_QSIZE, PWSEVENT and splwsevent private definitions to
wsevent.c, instead of exposing them in the header file.
- Make the wsevent_init function take a process to attach to the queue,
instead of leaving this task to the caller (which always did it).

Reviewed in tech-kern@.

Add support to automatically repeat mouse button events in wsmouse(4) and
change wsconsctl(4) so that this is configurable.

This is specially useful for mice that provide page up/down buttons instead
of a real wheel and that do not send events repeatedly from the hardware.
(E.g.: Logitech Marble Mouse.)

No objections in tech-kern@.

branches: 1.38.2; 1.38.4; 1.38.6;
merge ktrace-lwp.

Some devices provide more than three (X, Y, and Z) "directions". So add
a W "coordinate" that can be used for these.
This changes the type of wsmouse_input(). To avoid changing a lot of drivers
a compatibilty #define is provided. Maybe changing all drivers would have
been better?

branches: 1.36.2; 1.36.8;
PR-30566: Poll must not return <sys/errno.h> values.
Start with those places I can easily test.

nuke trailing whitespace

branches: 1.34.8; 1.34.10;
-remove a check of errno against -1, this is nonsense since
we have EPASSTHROUGH
-remove a superflous #if NWSMOUSE

cleanup & uniform descriptor owner handling:
* introduce fsetown(), fgetown(), fownsignal() - this sets/retrieves/signals
the owner of descriptor, according to appropriate sematics
of TIOCSPGRP/FIOSETOWN/SIOCSPGRP/TIOCGPGRP/FIOGETOWN/SIOCGPGRP ioctl; use
these routines instead of custom code where appropriate
* make every place handling TIOCSPGRP/TIOCGPGRP handle also FIOSETOWN/FIOGETOWN
properly, and remove the translation of FIO[SG]OWN to TIOC[SG]PGRP
in sys_ioctl() & sys_fcntl()
* also remove the socket-specific hack in sys_ioctl()/sys_fcntl() and
pass the ioctls down to soo_ioctl() as any other ioctl

change discussed on tech-kern@

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.31.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Use aprint_normal() in cfprint routines.

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

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Don't detach the mouse from the mux just because the mouse device is
opened. Too annoying and unnecessary.

branches: 1.22.8;
Add some DIAGNOSTIC tests.

add/cleanup RCSIDs

Have necessary braces.

Improve debug messages a little.

Change back to have a wseventvar in the softc for event sources. This
way the effect of FIOASYNC survives close()/open(). Later versions
of XFree86 relies on this bug/feature.
Also add some more debug stuff.

Major rototilling of the wsmux code. No user visible changes (except that
many bugs have been fixed).
Changes:
The wskbd, wsmouse, and wsmux are now "sub-classes" of wsevsrc, which is
a source of ws events. This make the structure of those drivers a little
more uniform.
Many bug fixes involving adding and removing devices from muxes.
When a kernel is configured without wsmux there will now be none (unlike
before where you got a console mux anyway).
The kernel now compiles with all combinations of ws devices present.

branches: 1.16.2;
Fix a (very old) pasto.

ANSIfy.

Two changes to the wsmux code:
* Allow the wsmux used by wsdisplay for the keyboard(s) to be explicitely
specified with the kbdmux locator.
* Allow keyboards and mice that have a mux to be opened in the regular way.
These changes should be totally backwards compatible.

branches: 1.13.2; 1.13.4; 1.13.6;
Fix an uninitialised variable which could have caused corruption of the user
button state (and hence spurious mouse clicks) if the event queue filled
up.

Mouse move event should be made before mouse bown event. Without that,
you may got a mouse down event in strange plase.

Absolute pointing device support.
- Wsmouse_input() get new argument 'flag', which indicates whether x/y/z are
relative or absolute.
- Wsmouse get new io controls, WSMOUSEIO_SCALIBCOORDS and
WSMOUSEIO_GCALIBCOORDS.

replace embedded _rcsid[] string by __KERNEL_RCSID(), remove _copyright[]

branches: 1.9.2;
Get the dependencies on NWSMUX right (I hope).

Add the wsmux pseudo device.

Make it possible to detach wsmouse and wskbd.
XXX wskbd probably needs some more work.

branches: 1.6.4;
Remove redundant test if the unit numbers is in range.

Allow the wsmouse device to be opened for writing even if it is already
open, this way ioctl() can be performed on it and wsconsctl works.

add third axis for pointing devices (flying mice)

Insert lots of ``#if NWSMOUSE > 0'' and ``#if NWSDISPLAY > 0'' to make it
possible to have a wsmouse and/or wskbd without having a wsdisplay.

Nuke __BROKEN_INDIRECT_CONFIG.

Initial import of cgd's new wscons code.

wsmouse: add support for "precision scrolling" events and (GET|SET)PARAMS

WSCONS_EVENT_HSCROLL and WSCONS_EVENT_VSCROLL are two new wscons event
types that allow scrolling with a higher precision ("smoothness") than an
emulated scroll wheel, and are useful for touch input drivers.

WSMOUSEIO_GETPARAMS and WSMOUSEIO_SETPARAMS are two new ioctls that allow
the speed and direction of precision scrolling to be configured.

both features were originally implemented in OpenBSD.

Explicitly include generated ioconf.h for struct cfdrivers.

branches: 1.68.18;
Remove redundant includes of malloc.h

Use __arraycount a bunch
Also, DIAGNOSTIC panic -> KASSERT

branches: 1.66.8; 1.66.18;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.65.2;
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.

branches: 1.64.2; 1.64.12; 1.64.16;
Correct copy/paste error in previous.

Initialize the W axis value on open as is already done for the other axes.

- reduce the number of #ifdefs.
- build compat glues if MODULAR.

provide wscons_event compatibility with 5.0.

branches: 1.60.4;
use device_lookup_private to get softc
use device_lookup to get device_t

branches: 1.59.2; 1.59.4;
Make various bits of debug code compile again.

Remove clause 3 and 4 from TNF licenses

branches: 1.57.2; 1.57.4;
use aprint_*_dev and device_xname

Split device_t and softc for wskbd(4), wsmouse(4) and that creepy wsmux(4).

branches: 1.55.10;
Merge jmcneill-pm branch.

branches: 1.54.2; 1.54.4;
aprintify

branches: 1.53.4;
Use callout_setfunc/callout_schedule instead of callout_reset.
Use mstohz for the calculations.

branches: 1.52.6; 1.52.8; 1.52.10;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.51.2; 1.51.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.50.4;
__unused removal on arguments; approved by core.

Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.47.2; 1.47.4;
fix incomplete initializers

integrate kauth.

Use device_cfdata().

Use device_unit().

branches: 1.43.2; 1.43.4;
Add missing closing parenthesis to a diagnostic message.

branches: 1.42.2;
fix compilation problems.

PR/32794: Paul Shupak: Panic in wsmouse code.
Checking the number of events after you've trashed the stack is not very
useful. Instead, break out of the loop if we ran out, printing a message.
Also don't try to inject 0 events; reset our state instead. Maybe having
0 events should be a diagnostic printf at this point? Anyway it is not
nice having the kernel die because the mouse code got confused. Finally,
explain why the array of events is sized funny.

wsevent cleanup:

- Add a wsevent_inject function that atomically adds a set of events to an
event queue and change all code that directly messed with a queue to use it.
- Replace the WSEVENT_WAKEUP macro with a regular function.
- Make WSEVENT_QSIZE, PWSEVENT and splwsevent private definitions to
wsevent.c, instead of exposing them in the header file.
- Make the wsevent_init function take a process to attach to the queue,
instead of leaving this task to the caller (which always did it).

Reviewed in tech-kern@.

Add support to automatically repeat mouse button events in wsmouse(4) and
change wsconsctl(4) so that this is configurable.

This is specially useful for mice that provide page up/down buttons instead
of a real wheel and that do not send events repeatedly from the hardware.
(E.g.: Logitech Marble Mouse.)

No objections in tech-kern@.

branches: 1.38.2; 1.38.4; 1.38.6;
merge ktrace-lwp.

Some devices provide more than three (X, Y, and Z) "directions". So add
a W "coordinate" that can be used for these.
This changes the type of wsmouse_input(). To avoid changing a lot of drivers
a compatibilty #define is provided. Maybe changing all drivers would have
been better?

branches: 1.36.2; 1.36.8;
PR-30566: Poll must not return <sys/errno.h> values.
Start with those places I can easily test.

nuke trailing whitespace

branches: 1.34.8; 1.34.10;
-remove a check of errno against -1, this is nonsense since
we have EPASSTHROUGH
-remove a superflous #if NWSMOUSE

cleanup & uniform descriptor owner handling:
* introduce fsetown(), fgetown(), fownsignal() - this sets/retrieves/signals
the owner of descriptor, according to appropriate sematics
of TIOCSPGRP/FIOSETOWN/SIOCSPGRP/TIOCGPGRP/FIOGETOWN/SIOCGPGRP ioctl; use
these routines instead of custom code where appropriate
* make every place handling TIOCSPGRP/TIOCGPGRP handle also FIOSETOWN/FIOGETOWN
properly, and remove the translation of FIO[SG]OWN to TIOC[SG]PGRP
in sys_ioctl() & sys_fcntl()
* also remove the socket-specific hack in sys_ioctl()/sys_fcntl() and
pass the ioctls down to soo_ioctl() as any other ioctl

change discussed on tech-kern@

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.31.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Use aprint_normal() in cfprint routines.

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

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Don't detach the mouse from the mux just because the mouse device is
opened. Too annoying and unnecessary.

branches: 1.22.8;
Add some DIAGNOSTIC tests.

add/cleanup RCSIDs

Have necessary braces.

Improve debug messages a little.

Change back to have a wseventvar in the softc for event sources. This
way the effect of FIOASYNC survives close()/open(). Later versions
of XFree86 relies on this bug/feature.
Also add some more debug stuff.

Major rototilling of the wsmux code. No user visible changes (except that
many bugs have been fixed).
Changes:
The wskbd, wsmouse, and wsmux are now "sub-classes" of wsevsrc, which is
a source of ws events. This make the structure of those drivers a little
more uniform.
Many bug fixes involving adding and removing devices from muxes.
When a kernel is configured without wsmux there will now be none (unlike
before where you got a console mux anyway).
The kernel now compiles with all combinations of ws devices present.

branches: 1.16.2;
Fix a (very old) pasto.

ANSIfy.

Two changes to the wsmux code:
* Allow the wsmux used by wsdisplay for the keyboard(s) to be explicitely
specified with the kbdmux locator.
* Allow keyboards and mice that have a mux to be opened in the regular way.
These changes should be totally backwards compatible.

branches: 1.13.2; 1.13.4; 1.13.6;
Fix an uninitialised variable which could have caused corruption of the user
button state (and hence spurious mouse clicks) if the event queue filled
up.

Mouse move event should be made before mouse bown event. Without that,
you may got a mouse down event in strange plase.

Absolute pointing device support.
- Wsmouse_input() get new argument 'flag', which indicates whether x/y/z are
relative or absolute.
- Wsmouse get new io controls, WSMOUSEIO_SCALIBCOORDS and
WSMOUSEIO_GCALIBCOORDS.

replace embedded _rcsid[] string by __KERNEL_RCSID(), remove _copyright[]

branches: 1.9.2;
Get the dependencies on NWSMUX right (I hope).

Add the wsmux pseudo device.

Make it possible to detach wsmouse and wskbd.
XXX wskbd probably needs some more work.

branches: 1.6.4;
Remove redundant test if the unit numbers is in range.

Allow the wsmouse device to be opened for writing even if it is already
open, this way ioctl() can be performed on it and wsconsctl works.

add third axis for pointing devices (flying mice)

Insert lots of ``#if NWSMOUSE > 0'' and ``#if NWSDISPLAY > 0'' to make it
possible to have a wsmouse and/or wskbd without having a wsdisplay.

Nuke __BROKEN_INDIRECT_CONFIG.

Initial import of cgd's new wscons code.

Explicitly include generated ioconf.h for struct cfdrivers.

Remove redundant includes of malloc.h

Use __arraycount a bunch
Also, DIAGNOSTIC panic -> KASSERT

branches: 1.66.8; 1.66.18;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.65.2;
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.

branches: 1.64.2; 1.64.12; 1.64.16;
Correct copy/paste error in previous.

Initialize the W axis value on open as is already done for the other axes.

- reduce the number of #ifdefs.
- build compat glues if MODULAR.

provide wscons_event compatibility with 5.0.

branches: 1.60.4;
use device_lookup_private to get softc
use device_lookup to get device_t

branches: 1.59.2; 1.59.4;
Make various bits of debug code compile again.

Remove clause 3 and 4 from TNF licenses

branches: 1.57.2; 1.57.4;
use aprint_*_dev and device_xname

Split device_t and softc for wskbd(4), wsmouse(4) and that creepy wsmux(4).

branches: 1.55.10;
Merge jmcneill-pm branch.

branches: 1.54.2; 1.54.4;
aprintify

branches: 1.53.4;
Use callout_setfunc/callout_schedule instead of callout_reset.
Use mstohz for the calculations.

branches: 1.52.6; 1.52.8; 1.52.10;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.51.2; 1.51.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.50.4;
__unused removal on arguments; approved by core.

Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.47.2; 1.47.4;
fix incomplete initializers

integrate kauth.

Use device_cfdata().

Use device_unit().

branches: 1.43.2; 1.43.4;
Add missing closing parenthesis to a diagnostic message.

branches: 1.42.2;
fix compilation problems.

PR/32794: Paul Shupak: Panic in wsmouse code.
Checking the number of events after you've trashed the stack is not very
useful. Instead, break out of the loop if we ran out, printing a message.
Also don't try to inject 0 events; reset our state instead. Maybe having
0 events should be a diagnostic printf at this point? Anyway it is not
nice having the kernel die because the mouse code got confused. Finally,
explain why the array of events is sized funny.

wsevent cleanup:

- Add a wsevent_inject function that atomically adds a set of events to an
event queue and change all code that directly messed with a queue to use it.
- Replace the WSEVENT_WAKEUP macro with a regular function.
- Make WSEVENT_QSIZE, PWSEVENT and splwsevent private definitions to
wsevent.c, instead of exposing them in the header file.
- Make the wsevent_init function take a process to attach to the queue,
instead of leaving this task to the caller (which always did it).

Reviewed in tech-kern@.

Add support to automatically repeat mouse button events in wsmouse(4) and
change wsconsctl(4) so that this is configurable.

This is specially useful for mice that provide page up/down buttons instead
of a real wheel and that do not send events repeatedly from the hardware.
(E.g.: Logitech Marble Mouse.)

No objections in tech-kern@.

branches: 1.38.2; 1.38.4; 1.38.6;
merge ktrace-lwp.

Some devices provide more than three (X, Y, and Z) "directions". So add
a W "coordinate" that can be used for these.
This changes the type of wsmouse_input(). To avoid changing a lot of drivers
a compatibilty #define is provided. Maybe changing all drivers would have
been better?

branches: 1.36.2; 1.36.8;
PR-30566: Poll must not return <sys/errno.h> values.
Start with those places I can easily test.

nuke trailing whitespace

branches: 1.34.8; 1.34.10;
-remove a check of errno against -1, this is nonsense since
we have EPASSTHROUGH
-remove a superflous #if NWSMOUSE

cleanup & uniform descriptor owner handling:
* introduce fsetown(), fgetown(), fownsignal() - this sets/retrieves/signals
the owner of descriptor, according to appropriate sematics
of TIOCSPGRP/FIOSETOWN/SIOCSPGRP/TIOCGPGRP/FIOGETOWN/SIOCGPGRP ioctl; use
these routines instead of custom code where appropriate
* make every place handling TIOCSPGRP/TIOCGPGRP handle also FIOSETOWN/FIOGETOWN
properly, and remove the translation of FIO[SG]OWN to TIOC[SG]PGRP
in sys_ioctl() & sys_fcntl()
* also remove the socket-specific hack in sys_ioctl()/sys_fcntl() and
pass the ioctls down to soo_ioctl() as any other ioctl

change discussed on tech-kern@

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.31.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Use aprint_normal() in cfprint routines.

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

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Don't detach the mouse from the mux just because the mouse device is
opened. Too annoying and unnecessary.

branches: 1.22.8;
Add some DIAGNOSTIC tests.

add/cleanup RCSIDs

Have necessary braces.

Improve debug messages a little.

Change back to have a wseventvar in the softc for event sources. This
way the effect of FIOASYNC survives close()/open(). Later versions
of XFree86 relies on this bug/feature.
Also add some more debug stuff.

Major rototilling of the wsmux code. No user visible changes (except that
many bugs have been fixed).
Changes:
The wskbd, wsmouse, and wsmux are now "sub-classes" of wsevsrc, which is
a source of ws events. This make the structure of those drivers a little
more uniform.
Many bug fixes involving adding and removing devices from muxes.
When a kernel is configured without wsmux there will now be none (unlike
before where you got a console mux anyway).
The kernel now compiles with all combinations of ws devices present.

branches: 1.16.2;
Fix a (very old) pasto.

ANSIfy.

Two changes to the wsmux code:
* Allow the wsmux used by wsdisplay for the keyboard(s) to be explicitely
specified with the kbdmux locator.
* Allow keyboards and mice that have a mux to be opened in the regular way.
These changes should be totally backwards compatible.

branches: 1.13.2; 1.13.4; 1.13.6;
Fix an uninitialised variable which could have caused corruption of the user
button state (and hence spurious mouse clicks) if the event queue filled
up.

Mouse move event should be made before mouse bown event. Without that,
you may got a mouse down event in strange plase.

Absolute pointing device support.
- Wsmouse_input() get new argument 'flag', which indicates whether x/y/z are
relative or absolute.
- Wsmouse get new io controls, WSMOUSEIO_SCALIBCOORDS and
WSMOUSEIO_GCALIBCOORDS.

replace embedded _rcsid[] string by __KERNEL_RCSID(), remove _copyright[]

branches: 1.9.2;
Get the dependencies on NWSMUX right (I hope).

Add the wsmux pseudo device.

Make it possible to detach wsmouse and wskbd.
XXX wskbd probably needs some more work.

branches: 1.6.4;
Remove redundant test if the unit numbers is in range.

Allow the wsmouse device to be opened for writing even if it is already
open, this way ioctl() can be performed on it and wsconsctl works.

add third axis for pointing devices (flying mice)

Insert lots of ``#if NWSMOUSE > 0'' and ``#if NWSDISPLAY > 0'' to make it
possible to have a wsmouse and/or wskbd without having a wsdisplay.

Nuke __BROKEN_INDIRECT_CONFIG.

Initial import of cgd's new wscons code.

Remove redundant includes of malloc.h

Use __arraycount a bunch
Also, DIAGNOSTIC panic -> KASSERT

branches: 1.66.8; 1.66.18;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.65.2;
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.

branches: 1.64.2; 1.64.12; 1.64.16;
Correct copy/paste error in previous.

Initialize the W axis value on open as is already done for the other axes.

- reduce the number of #ifdefs.
- build compat glues if MODULAR.

provide wscons_event compatibility with 5.0.

branches: 1.60.4;
use device_lookup_private to get softc
use device_lookup to get device_t

branches: 1.59.2; 1.59.4;
Make various bits of debug code compile again.

Remove clause 3 and 4 from TNF licenses

branches: 1.57.2; 1.57.4;
use aprint_*_dev and device_xname

Split device_t and softc for wskbd(4), wsmouse(4) and that creepy wsmux(4).

branches: 1.55.10;
Merge jmcneill-pm branch.

branches: 1.54.2; 1.54.4;
aprintify

branches: 1.53.4;
Use callout_setfunc/callout_schedule instead of callout_reset.
Use mstohz for the calculations.

branches: 1.52.6; 1.52.8; 1.52.10;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.51.2; 1.51.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.50.4;
__unused removal on arguments; approved by core.

Tidy away wsmouse_input() abstractions and update
documentation to include the W direction.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.47.2; 1.47.4;
fix incomplete initializers

integrate kauth.

Use device_cfdata().

Use device_unit().

branches: 1.43.2; 1.43.4;
Add missing closing parenthesis to a diagnostic message.

branches: 1.42.2;
fix compilation problems.

PR/32794: Paul Shupak: Panic in wsmouse code.
Checking the number of events after you've trashed the stack is not very
useful. Instead, break out of the loop if we ran out, printing a message.
Also don't try to inject 0 events; reset our state instead. Maybe having
0 events should be a diagnostic printf at this point? Anyway it is not
nice having the kernel die because the mouse code got confused. Finally,
explain why the array of events is sized funny.

wsevent cleanup:

- Add a wsevent_inject function that atomically adds a set of events to an
event queue and change all code that directly messed with a queue to use it.
- Replace the WSEVENT_WAKEUP macro with a regular function.
- Make WSEVENT_QSIZE, PWSEVENT and splwsevent private definitions to
wsevent.c, instead of exposing them in the header file.
- Make the wsevent_init function take a process to attach to the queue,
instead of leaving this task to the caller (which always did it).

Reviewed in tech-kern@.

Add support to automatically repeat mouse button events in wsmouse(4) and
change wsconsctl(4) so that this is configurable.

This is specially useful for mice that provide page up/down buttons instead
of a real wheel and that do not send events repeatedly from the hardware.
(E.g.: Logitech Marble Mouse.)

No objections in tech-kern@.

branches: 1.38.2; 1.38.4; 1.38.6;
merge ktrace-lwp.

Some devices provide more than three (X, Y, and Z) "directions". So add
a W "coordinate" that can be used for these.
This changes the type of wsmouse_input(). To avoid changing a lot of drivers
a compatibilty #define is provided. Maybe changing all drivers would have
been better?

branches: 1.36.2; 1.36.8;
PR-30566: Poll must not return <sys/errno.h> values.
Start with those places I can easily test.

nuke trailing whitespace

branches: 1.34.8; 1.34.10;
-remove a check of errno against -1, this is nonsense since
we have EPASSTHROUGH
-remove a superflous #if NWSMOUSE

cleanup & uniform descriptor owner handling:
* introduce fsetown(), fgetown(), fownsignal() - this sets/retrieves/signals
the owner of descriptor, according to appropriate sematics
of TIOCSPGRP/FIOSETOWN/SIOCSPGRP/TIOCGPGRP/FIOGETOWN/SIOCGPGRP ioctl; use
these routines instead of custom code where appropriate
* make every place handling TIOCSPGRP/TIOCGPGRP handle also FIOSETOWN/FIOGETOWN
properly, and remove the translation of FIO[SG]OWN to TIOC[SG]PGRP
in sys_ioctl() & sys_fcntl()
* also remove the socket-specific hack in sys_ioctl()/sys_fcntl() and
pass the ioctls down to soo_ioctl() as any other ioctl

change discussed on tech-kern@

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.31.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Use aprint_normal() in cfprint routines.

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

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Don't detach the mouse from the mux just because the mouse device is
opened. Too annoying and unnecessary.

branches: 1.22.8;
Add some DIAGNOSTIC tests.

add/cleanup RCSIDs

Have necessary braces.

Improve debug messages a little.

Change back to have a wseventvar in the softc for event sources. This
way the effect of FIOASYNC survives close()/open(). Later versions
of XFree86 relies on this bug/feature.
Also add some more debug stuff.

Major rototilling of the wsmux code. No user visible changes (except that
many bugs have been fixed).
Changes:
The wskbd, wsmouse, and wsmux are now "sub-classes" of wsevsrc, which is
a source of ws events. This make the structure of those drivers a little
more uniform.
Many bug fixes involving adding and removing devices from muxes.
When a kernel is configured without wsmux there will now be none (unlike
before where you got a console mux anyway).
The kernel now compiles with all combinations of ws devices present.

branches: 1.16.2;
Fix a (very old) pasto.

ANSIfy.

Two changes to the wsmux code:
* Allow the wsmux used by wsdisplay for the keyboard(s) to be explicitely
specified with the kbdmux locator.
* Allow keyboards and mice that have a mux to be opened in the regular way.
These changes should be totally backwards compatible.

branches: 1.13.2; 1.13.4; 1.13.6;
Fix an uninitialised variable which could have caused corruption of the user
button state (and hence spurious mouse clicks) if the event queue filled
up.

Mouse move event should be made before mouse bown event. Without that,
you may got a mouse down event in strange plase.

Absolute pointing device support.
- Wsmouse_input() get new argument 'flag', which indicates whether x/y/z are
relative or absolute.
- Wsmouse get new io controls, WSMOUSEIO_SCALIBCOORDS and
WSMOUSEIO_GCALIBCOORDS.

replace embedded _rcsid[] string by __KERNEL_RCSID(), remove _copyright[]

branches: 1.9.2;
Get the dependencies on NWSMUX right (I hope).

Add the wsmux pseudo device.

Make it possible to detach wsmouse and wskbd.
XXX wskbd probably needs some more work.

branches: 1.6.4;
Remove redundant test if the unit numbers is in range.

Allow the wsmouse device to be opened for writing even if it is already
open, this way ioctl() can be performed on it and wsconsctl works.

add third axis for pointing devices (flying mice)

Insert lots of ``#if NWSMOUSE > 0'' and ``#if NWSDISPLAY > 0'' to make it
possible to have a wsmouse and/or wskbd without having a wsdisplay.

Nuke __BROKEN_INDIRECT_CONFIG.

Initial import of cgd's new wscons code.