PS2K: group IN_RING3 code.

PS2K: drop excessive IN_RING3.

PS2K: coding style.

PS2K: HID LEDs sync: notify listener (GUI) about LEDs state on VM restore.

Devices/Input/PS2: Assert->AssertMsg.

PS2K: Do not react to commands when resetting.

ps2kLoadQueue: Paraoia, check SSMR3GetU32 return code before using the data.

Keyboard: Extended keyboard driver and reworked USB keyboard device emulation. See #7328.

Send HID usage codes rather than XT scan codes to keyboard devices, with conversion in driver. See #6026.

DevPS2: Release keys after restoring saved state, not while loading it.

PS2K: Recognize 0xFC as a special 'release all keys' event.

PS2K: Use default critsect for timers, too.

Devices: Whitespace and svn:keyword cleanups by scm.

PS2K: Merged and extended scan set 1/2 processing.

PS2K: Do not lose SysReq key.

PS2K: Redo typematic setup when loading state.

DevPS2.cpp++: Drop two critsects in favor of the default device critsect. This is simpler and avoid confusion as to the locking saftety of the PS2KByteFromKbd and PS2KByteToKbd interfaces exposed by PS2K and used by DevPS2. Misc cleanups (didn't do a full cleanup, sorry).

PS2K: Fixed Korean keys broken earlier.:

Doxygen, comment typos.

Devices/Input/PS2: LogRel to Log for typematic delay.

Print PS2K queue info.

Fixed keyboard command state machine (incomplete command with parameter aborted by another command.)

In-progress command blocks keyboard input.

Avoid spurious resend responses.

gcc warnings

Corrected a bunch of HC and GC uses in status codes.

Improved Num Lock handling.

Improved PrtSc/Pause key handling.

Typo...

32-bit padding.

Force enum size.

Alignment again.

Updated struct testcase to see what breaks.

Let us try without the enum.

Too much token pasting.

New and improved PS/2 keyboard emulation.