Make sure the keyboard device is actually enabled in DDXRingBell().

Also use consistent variable names for readability.

Allocate keyboard and mouse event buffers in the device private structures.

Also simplify GetEvents functions.

Allocate X68kKbdPriv dynamically to make it really private.

DEVICE_OFF and DEVICE_CLOSE operations are adjusted accordingly.
x68kGetKbdType() function is also added to get keyboard map type
specified in the config file.

Reduce references to x68kKbdPriv and x68kMousePriv for readability.

Refactor X68k input device handling to remove SIGIO based event processing.

The keyboard and pointer input events are now processed directly
using fd event notifications registered via DIX SetNotifyFd(),
instead of the legacy SIGIO-based asynchronous I/O.

Use consistent name for DeviceIntPtr variables among keyboard and mouse.

couple of changes needed for xorg-server 21.1.4.

- AbortDDX() is removed, make it static to avoid code churn since
it is used by internal code now
- LegalModifier() is gone
- if the PRESENT extension isn't included, don't enable the
-fakescreenfps option since it require PRESENT.

fixes builds for sun3 and x68k.

Fixes "FatalError re-entered, aborting" error when Xservers get SIGSEGV.

Handle a new DEVICE_ABORT mode perperly in deviceProc funtions.
Also don't exit via FatalError() on an unknown mode because it looks
upstream assumes DDX deviceProc functions don't treat it fatal:
https://gitlab.freedesktop.org/xorg/xserver/-/commit/9f79e93b6b3416055d08a0e8f9f16d5fd0649e36

ErrorF() doesn't append newlines at the end of messages.

Use exact-width interger types properly for register accesses etc.

No binary changes.

Fix a suspicious chunk disabled on xfree 4.x migration as sunKbd.c does.

Replace 'pointer' type with 'void *' to sync with upstream manner.

https://cgit.freedesktop.org/xorg/xserver/commit/?id=60014a4a98ff924ae7f6840781f768c1cc93bbab

TAB/space cleanup.

Sync with xorg-server.old: Remove #ifdef XKB conditional.

> It has been mandatory on Xorg:
> https://cgit.freedesktop.org/xorg/xserver/commit/?id=40877c6680863bd6a8475f2bb0c54df55bcf0b0e

Update for removal of AddEnabledDevice and RemoveEnabledDevice.

Use the NotifyFd API instead as per upstream commits:
https://cgit.freedesktop.org/xorg/xserver/commit/?id=55c2e1a3aa587c58a74066724e11e30b3df267b8
https://cgit.freedesktop.org/xorg/xserver/commit/?id=be5a513fee6cbf29ef7570e57eb0436d70fbd88c
https://cgit.freedesktop.org/xorg/xserver/commit/?id=60a91031d13e4d29c383087120e318f6b528b6e5
https://cgit.freedesktop.org/xorg/xserver/commit/?id=7def2fea30060d47780dc1eedc91fada5ae1934f

Remove clause 3 and 4 from X68k server files written by Yasushi Yamasaki.

I've finally contacted with Yamasaki-san and he kindly answered
"no objection to change them to 2 clause license" in private mail.
Diffs to be committed have also been confirmed by him.
We appreciate all his contribution to early NetBSD/x68k.

Pull more changes from Xnest to adapt X68k to Xorg server 1.18.

- use QueueKeyboardEvents() and QueuePointerEvents() which are provided
by dix/getevents.c, instead of raw mieqEnqueue() with uninitialized
local InternalEvent
- remove now actually unused local InternalEvent
- explicitly call mieqFini() in DDX CloseInput()

Confirmed working on XM6i, and "please commit" from mrg@.

port to xorg-server 1.18. builds and may work, but not tested.

Port the ancient Xsun based monolithic MD X68k server to X11R7, like Xnest.

Most diffs (API changes from xfree to xorg and some WARNSfy)
are mechanical. Confirmed working on X68030 and XM6i.

See my post on port-x68k@ for details:
http://mail-index.netbsd.org/port-x68k/2014/02/27/msg000043.html