This mostly fixes stylistic issues, but also fixes an issue with some
controllers where an erroneous check would clear the DLI flag, offsetting the
share button index so it wouldn't work.
This loop breakout was originally from an attempt to parse coalesced packets.
Breaking out early does more harm than good, and no devices coalesce packets,
so this is unnecessary.
By moving the message sending onto the main thread and adding a small timeout
we can now ensure the ACKs are sent fast enough to avoid the firmware bugs in
these controllers.
At the moment, only the ThrustMaster T.Flight Hotas One has full support. The
documentation says you can query the extra buttons via a specific command, but
the stick appears to reject the command. Further investigation is needed for
automatically querying this state.
This is needed for future work bringing up things like the chatpad.
This commit also fixes a few minor things, such as still sending motor packets
to devices that don't support it, enabling quirks that hide trigger rumble on
devices that are marked as not having it, and fixing #12942.
Using a 0 sequence number is always allowed and avoids having to synchronize sequence numbers with the controller (and potentially confusing other things talking to the controller)
Also fixes occasional long running rumble at controller connection.
This new driver is based on official documentation released by Microsoft in
September, though it still lacks several important features, notably the
Security handshake for wireless dongles and audio support. It is, however, more
reliable and extensible than the old driver.
Vicki Pfau
Sam Lantinga