Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Use the callout(9) API instead of timeout(9). To do this more cleanly,
convert a global timer to a per-controller timer. This works much better
with locking and removes the need for several global lookup tables.

Tested by: ambrisko

Start to convert this over to the new tty layer. These changes allow
this driver to compile and limp along with the new layer. These changes
do not deal with proper locking around access to the HW. This is only
a starting point. I have not tested modem control but tip seems to work
okay and I can send and receive characters which I needed for one of my
-current boxes. I have not tied this driver back up to the build since
I don't want people to think it is ready for prime time. If anyone
else has some cycles to work on this feel free to!

Also add support for a 16 port PCI interface I have at work.

Glanced at by: ed

- Make rp(4) 64-bit- and endian-clean as well as work on strict alignment
archs. [1]
- Instead of bus_space_{read,write}*(rman_get_bustag(), rman_get_bushandle())
use bus_{read,write}*() for efficiency.

Reported by: Peter Losher [1]
Tested on: i386, sparc64
MFC after: 2 weeks

Start each of the license/copyright comments with /*-, minor shuffle of lines

Prevent the rp driver from panic'ing on first access and make at
least the pci device unloadable

- Use ttymalloc() rather than a plain malloc to allocate the
rp->rp_tty ttys. This is now required due to the recent locking
changes to ttys and prevents a panic due to locking an unitialized
t_mtx.

- Allow the pci driver to be unloaded. This involved moving
the call rp_releaseresource() to the end of rp_pcireleaseresource(),
since rp_pcireleaseresource() uses ctlp->dev, which is freed
by rp_releaseresource().

- Allow the generic part of the driver to be unattached by providing
a hook to cancel timeouts.

Glanced at by: obrien

Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.

1. Update Comtrol RocketPort driver(rp) to version 3.02.
2. Newbusify the driver.
3. Build as a module.

4. Use correct minor numbers when creating device files.
5. Correctly lock control characters.
6. Return ENXIO when device not configured.
Submitted by: Tor Egge <Tor.Egge@fast.no>

7. Fix the baud_table.
Submitted by: Elliot Dierksen <ebd@oau.org>

Note:
- the old driver still lives in src/sys/i386/isa, so that you can
revert to it if something goes wrong.
- The module does not detach very well. Attaching works fine.

Add $FreeBSD$

Seventy-odd "its" / "it's" typos in comments fixed as per kern/6108.

ISA driver for Comtrol Rocketport serial cards. No PCI probe stub
was submitted to me.
Submitted by: Amir Farah <amir@comtrol.com>