Configuring Hotspot with freeradius and AP

Hi everybody! I want to set hotspot for the visitor of the society where I work. I have a cisco AP 1200 which support 802.1x and I've installed freeradius corectly. Here is my question : - what another module do I need to do the authentication? do I need to install radius client like chillispot or coova chilli? - What type of encryption do I need to? WAP,EAP? I really need your help, please I don't have enough time Thank you Hasina