PS3 Wireless Keypad pairing (CECHZK1)

PS3 Wireless Keypad pairing (CECHZK1)

[Bastien Nocera]

Hey,

Yesterday, I rebased and re-tested some old patches I had to support
the "Wireless Keypad" for the PS3.

Manual is here:
https://www.playstation.com/en-nz/content/dam/support/manuals/scee/web-manuals/peripherals/ps3/ps3-wireless-keypad/CECHZK1GB.pdf

There are 2 ways to pair it.

- The "standard Bluetooth way" explained in the manual under "Using the
wireless keypad with other products". I couldn't get the device to stay
connected/usable using current bluez git master, but I also had
problems getting an old Bluetooth input device to connect after
initially pairing, so it might be a more general problem in my setup or
in bluez/kernel land.

- I implemented "Cable pairing", this overwrites the computer to
connect to on the keypad, but it asks for a passkey when connecting
after that, which we obviously don't know.

I don't know what else would be needed to make the pairing complete and
keys be exchanged, when cable pairing, but in case this helps somebody
integrate a solution they hadn't made public before, here's my git tree
to give it a whirl:
https://github.com/hadess/bluez/commits/ps3-keypad-pairing

Cheers