The FreeBSD Handbook has an information how to setting up a FreeBSD access point using the WPA2-PSK.
docs.freebsd.org
How to setting up a FreeBSD access point using the WPA-Enterpise? (with RADIUS end certificates)
Chapter 34. Advanced Networking
Advanced networking in FreeBSD: basics of gateways and routes, CARP, how to configure multiple VLANs on FreeBSD, etc
How to setting up a FreeBSD access point using the WPA-Enterpise? (with RADIUS end certificates)