ps2: mark unused-but-set variable unused to avoid warning

Change-Id: If0073d878cfe4c37ea61bc10459e698ebbb47897
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6712
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>

ps2: do not publish keyboard device until mouse probing is complete

For mouse probing to work reliably, it's important that we don't
simultaneously send commands to the keyboard as well. This normally
happens because we don't publish the keyboard device until the probing
is complete.

However, if the mouse probing results in the keyboard sending some
replies, this can be detected as a "hot plugin" and leads to publishing
the keyboard device a lot earlier.

To prevent this, disable the "hot plugin" feature until we are done
initializing. This way the keyboard device is published only after we
are done with the probing.

Fixes #17806

Change-Id: Ia6a2b031550c845fa305df5b5f4d513d5c7931d6
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5388
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>

ps2: disable keyboard during multiplexing probing

My machine does not have an AUX/Mouse port at all. As a result, the
commands all get sent to the keyboard, which confuses the keyboard and
it eventually resets. This is generally harmless, but it ends up
resetting the keyboard, which cancels the effect of the commands to set
the repeat rate and delay during boot.

By disabling the keyboard during this step, we can avoid interference
with it.

Change-Id: Ic0513972a31e030a15577477c3d3fe32d4ce9bd3
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5387
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

ps2: allow more selective tracing

In some cases, we don't need the full tracking of every byte received at
the PS2 level, but higher level traces from specific devices will be
enough.

Change-Id: I31984e6b7784b5d033b457f43f3793f772213f4a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4423
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

ps2: added initial support for elantech pads.

* also added a license to ps2_alps.h
* added ps2_dev_sliced_command()
* moved some ps2 commands definitions to ps2_defs.h

Ported ISA bus manager and PS/2 driver.

* Check the KBC command byte for kbd disable bit during keyboard probe and clean
it in case it was set "on".
* Tracing added for the case of ignoring interrupt with not active OBF status bit.

Fixes #7973 #6313



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42820 a95241bf-73f2-0310-859d-f6bbb57e9c96

Suppress the keyboard and AUX interrupts during sending
PS/2 active multiplexing activation sequence. This prevent from
IRQ storm on some controllers. Fixes #7635.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42323 a95241bf-73f2-0310-859d-f6bbb57e9c96

Reapply the ps2 cpp patch. Thanks Axel.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41134 a95241bf-73f2-0310-859d-f6bbb57e9c96

Revert r41129 to get history back.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41133 a95241bf-73f2-0310-859d-f6bbb57e9c96

Making the ps2 busmanager c++.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41129 a95241bf-73f2-0310-859d-f6bbb57e9c96

ps2: added initial support for elantech pads.

* also added a license to ps2_alps.h
* added ps2_dev_sliced_command()
* moved some ps2 commands definitions to ps2_defs.h

Ported ISA bus manager and PS/2 driver.

* Check the KBC command byte for kbd disable bit during keyboard probe and clean
it in case it was set "on".
* Tracing added for the case of ignoring interrupt with not active OBF status bit.

Fixes #7973 #6313



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42820 a95241bf-73f2-0310-859d-f6bbb57e9c96

Suppress the keyboard and AUX interrupts during sending
PS/2 active multiplexing activation sequence. This prevent from
IRQ storm on some controllers. Fixes #7635.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42323 a95241bf-73f2-0310-859d-f6bbb57e9c96

Reapply the ps2 cpp patch. Thanks Axel.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41134 a95241bf-73f2-0310-859d-f6bbb57e9c96

Revert r41129 to get history back.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41133 a95241bf-73f2-0310-859d-f6bbb57e9c96

Making the ps2 busmanager c++.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41129 a95241bf-73f2-0310-859d-f6bbb57e9c96