generic/tty: Combine settings structures.

It doesn't make much sense to have separate window sizes, termios, etc.
settings for the two halves of a TTY. Moreover, having separate settings
which can get out of sync breaks applications, e.g. double-printing
in shells.

The original TTY driver has unified settings. It seems likely that the
settings were separated as part of the locking simplification, however
the lock separation was reverted a while back, anyway.

tty: move the "tty" KDL command to the generic tty module.

Currently I'm trying to debug things using the generic tty module, and I
can't use the command from the driver for that. I hope someday the
driver and module will use the same structure for the ttys and can share
the same command...

Change-Id: I167dab600ac8567368604f9b6463f787857f4d20
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4602
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>

s/Haiku License/MIT License/g.

They are the same thing.

* Seperate out the tty_close_cookie from tty_destory_cookie and make the former
available as a module function as well.
* Remove some unneeded resetting from tty_destroy_cookie.
* Move the public module functions to the public API section of the file and
order them by their declaration order in the module info.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42154 a95241bf-73f2-0310-859d-f6bbb57e9c96

Remove the global lock and the documentation for it. It was specific to the tty
driver and doesn't apply to the generic module.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42086 a95241bf-73f2-0310-859d-f6bbb57e9c96

Adding a generic tty module based largely on the tty driver. This has a new API
and doesn't come with BeOS backwards compatibility. It also has the BeOS
compatibility ioctl ops removed and such. I've actually made this back in april,
so I don't really remember any more details.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39760 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Seperate out the tty_close_cookie from tty_destory_cookie and make the former
available as a module function as well.
* Remove some unneeded resetting from tty_destroy_cookie.
* Move the public module functions to the public API section of the file and
order them by their declaration order in the module info.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42154 a95241bf-73f2-0310-859d-f6bbb57e9c96

Remove the global lock and the documentation for it. It was specific to the tty
driver and doesn't apply to the generic module.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42086 a95241bf-73f2-0310-859d-f6bbb57e9c96

Adding a generic tty module based largely on the tty driver. This has a new API
and doesn't come with BeOS backwards compatibility. It also has the BeOS
compatibility ioctl ops removed and such. I've actually made this back in april,
so I don't really remember any more details.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39760 a95241bf-73f2-0310-859d-f6bbb57e9c96