sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

evdev: Extend EVIOCGRAB ioctl scope to cover kbd interface

of various keyboard drivers.
EVIOCGRAB ioctl execution on /dev/input/event# device node gains
exclusive access to this device to caller. It

evdev: Extend EVIOCGRAB ioctl scope to cover kbd interface

of various keyboard drivers.
EVIOCGRAB ioctl execution on /dev/input/event# device node gains
exclusive access to this device to caller. It is used mostly for
development purposes and remote control software. See e.g.
https://reviews.freebsd.org/D30020 which is the reason of creation
of this change.
Keyboard grabbing is disabled in KDB and during panics.

MFC with: 4a0db5e2920c
Tested by: corvink
Differential revision: https://reviews.freebsd.org/D30542

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evdev: Extend EVIOCGRAB ioctl scope to cover sysmouse interface

of psm(4), ums(4) and sysmouse(4) drivers.
EVIOCGRAB ioctl execution on /dev/input/event# device node gains
exclusive access to this d

evdev: Extend EVIOCGRAB ioctl scope to cover sysmouse interface

of psm(4), ums(4) and sysmouse(4) drivers.
EVIOCGRAB ioctl execution on /dev/input/event# device node gains
exclusive access to this device to caller. It is used mostly for
development purposes and remote control software. See e.g.
https://reviews.freebsd.org/D30020 which is the reason of creation
of this change.

MFC after: 2 weeks
Tested by: corvink
Differential revision: https://reviews.freebsd.org/D30542

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evdev: Add support for automatic MT protocol type A to type B conversion.

MFC after: 2 weeks

evdev: Add implicit mode for touch tracking.

In implicit mode assignment of slot number and tracking id is performed
automatically on each synchronization requested by device driver.

This is done w

evdev: Add implicit mode for touch tracking.

In implicit mode assignment of slot number and tracking id is performed
automatically on each synchronization requested by device driver.

This is done with creation of intermediate buffer for multitouch events.
This buffer holds untracked events until synchronization is requested by
device driver. It is needed as touch assigment requires
knowledges of all touch positions pushed in current and previous reports.

MFC after: 2 weeks

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evdev: Make MT tracking IDs monotonically increasing sequence.

MFC after: 2 weeks

evdev: force no fuzz for autogenerated single touch compat events.

As fuzz has already been applied on multitouch event processing.
This allows to remove existing workaround for double fuzz procesin

evdev: force no fuzz for autogenerated single touch compat events.

As fuzz has already been applied on multitouch event processing.
This allows to remove existing workaround for double fuzz procesing.

MFC after: 2 weeks

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evdev: Multitouch code style changes.

1. Move touch count reporting helpers to utils. They are not multitouch.
2. Use evdev_mt prefix for private multitouch support routines.
3. Use int instead of i

evdev: Multitouch code style changes.

1. Move touch count reporting helpers to utils. They are not multitouch.
2. Use evdev_mt prefix for private multitouch support routines.
3. Use int instead of int32_t where fixed size is not required.
4. Export some internal functions.

This change should be no-op.

MFC after: 2 weeks

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evdev: Use bit_foreach helper macro

for traversing all bits set in the bitstring(9).

While here move bit_change() definition to common header.

MFC after: 1 week

evdev: Do not check maximal contact number for MT initialization

This allows singletouch devices which use multitouch protocols to work.

Reported by: Mark Kane <mark_AT_kane_DOT_mn>
MFC after: 1 we

evdev: Do not check maximal contact number for MT initialization

This allows singletouch devices which use multitouch protocols to work.

Reported by: Mark Kane <mark_AT_kane_DOT_mn>
MFC after: 1 week

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evdev: Implement fuzz.

Fuzz is used to filter noise from the event stream.
Upcoming gamepad drivers use it.

Reviewed by: hselasky (as part of D27993)

evdev: Make open(2) and close(3) handlers sleepable.

At the beginning of evdev there was a LOR between hardware driver's and
evdev client list locks as they were taken in different order at
driver's

evdev: Make open(2) and close(3) handlers sleepable.

At the beginning of evdev there was a LOR between hardware driver's and
evdev client list locks as they were taken in different order at
driver's interrupt and evdev open()/close() handlers.

The LOR was fixed with introduction of evdev_register_mtx() function
which allowed to use a hardware driver's lock as evdev client list lock.
While this works good with PS/2 and USB, this does not work with I2C.
Unlike PS/2 and USB, I2C open()/close() handlers do unbound sleeps
while waiting for I2C bus to release and while performing IO.
This change uses epoch(9) for traversing evdev client list in interrupt
handler to avoid the LOR thus making possible to convert evdev client
list lock to sleepable sx.

While here add brief locking protocol description.

Reviewed by: markj
Differential revision: https://reviews.freebsd.org/D27865

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evdev: Remove useless "initial value" parameter from evdev_support_abs()

It can not be used for setting of state of multitouch events.
If necessary, use evdev_push_event() instead of it.

Allow evdev's rcpt_mask and sysmouse_t_axis parameters to be specified in
/boot/loader.conf .

MFC after: 1 week
Sponsored by: Mellanox Technologies // NVIDIA Networking

Fix kern.evdev.rcpt_mask on powerpc

In r360126, I meant to have a different mask only on powerpc, not powerpc64.
Update the check to check that we're not compiling for powerpc64.

Reported by: jhibb

Fix kern.evdev.rcpt_mask on powerpc

In r360126, I meant to have a different mask only on powerpc, not powerpc64.
Update the check to check that we're not compiling for powerpc64.

Reported by: jhibbits
Approved by: wulf (implicit)
MFC after: 2 weeks
X-MFC-Note: 12 only
X-MFC-With: r360126
Differential Revision: D24370 (followup)

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Change kern.evdev.rcpt_mask to 12 by default

Change kern.evdev.rcpt_mask from 3 to 12 by default. This makes us much
more evdev-friendly, and will prevent everyone using xorg and wayland with
evdev

Change kern.evdev.rcpt_mask to 12 by default

Change kern.evdev.rcpt_mask from 3 to 12 by default. This makes us much
more evdev-friendly, and will prevent everyone using xorg and wayland with
evdev devices (the default) from needing to change this locally.

powerpc32 still uses the old value for the keyboard part, becaues the adb
keyboard driver used there is not evdev compatible.

Reviewed by: wulf
Approved by: wulf
MFC after: 2 weeks
X-MFC-Note: 12 only
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D24370

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Use LIST_FOREACH_SAFE instead of LIST_FOREACH as we are removing
elements in the middle.

This fixes a panic when detaching USB mouse.

PR: 245732
Reviewed by: wulf
MFC after: 3 days
Differential Re

Use LIST_FOREACH_SAFE instead of LIST_FOREACH as we are removing
elements in the middle.

This fixes a panic when detaching USB mouse.

PR: 245732
Reviewed by: wulf
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D24500

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[evdev] Use proper mutex reference in autorepeat callout initialization.

This fixes panic occuring when evdev key autorepeat is enabled by driver
which initializes evdev with external mutex.

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly mark

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by: kib (mentor, blanket)
Commented by: kib, gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D23718

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Fix build when EVDEV_SUPPORT is option disabled after r344494

MFC with: 344494

evdev: export event device properties through sysctl interface

A big security advantage of Wayland is not allowing applications to read
input devices all the time. Having /dev/input/* accessible to

evdev: export event device properties through sysctl interface

A big security advantage of Wayland is not allowing applications to read
input devices all the time. Having /dev/input/* accessible to the user
account subverts this advantage.

libudev-devd was opening the evdev devices to detect their types (mouse,
keyboard, touchpad, etc). This don't work if /dev/input/* is inaccessible.
With the kernel exposing this information as sysctls (kern.evdev.input.*),
we can work w/o /dev/input/* access, preserving the Wayland security model.

Submitted by: Greg V <[email protected]>
Reviewed by: wulf, imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D18694

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evdev: disable evdev if it is invoked from KDB or panic context

This allow to prevent deadlock on entering KDB if one of evdev locks is
already taken by userspace process.

Also this change discards

evdev: disable evdev if it is invoked from KDB or panic context

This allow to prevent deadlock on entering KDB if one of evdev locks is
already taken by userspace process.

Also this change discards all but LED console events produced by KDB as
unrelated to userspace.

Tested by: dumbbell (as part of D15070)
Objected by: bde (as 'KDB lock an already locked mutex' problem solution)
MFC after: 1 month

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evdev: remove soft context from evdev methods parameter list.

Now softc should be retrieved from struct edvev * pointer
with evdev_get_softc() helper.

wmt(4) is a sample of driver that support both

evdev: remove soft context from evdev methods parameter list.

Now softc should be retrieved from struct edvev * pointer
with evdev_get_softc() helper.

wmt(4) is a sample of driver that support both KPI.

Reviewed by: hselasky, gonzo
Differential Revision: https://reviews.freebsd.org/D16614

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evdev: Export EVDEV_SUPPORT kernel option through feature facility

Suggested by: netchild
Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 1 week

evdev: Do not start/stop softrepeat callout if no clients attached

Reviewed by: gonzo
Approved by: gonzo (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D12676