What is the official (according to Sony) way to set up a PS3 controller?

Since Unity has the capacity to export to a Sony console (PS3, PS4 and Vita) I was wondering what the official (according to Sony) way to set up in the inputs manager a PS3 controller.

... That is unless this is intended to be information that's kept behind an NDA (but I'm not sure why that could be if it is the case.)

Asking mainly because I want to be able to gain access to the analog output of the shoulder buttons since I am working on something that needs this functionality and I would like to port it to the PSN when it's ready to ship.