The Tafi (Hausa) script is not yet in Unicode. The script has not yet been added to the  Roadmap to the SMP for the Unicode Standard.

One document that mentions the script has been submitted to the Unicode Technical Committee and WG2:

2009-04-22 Report to JTC1 Chair and JTC1/SC2 Chair Regarding Resolution 34 on African Languages — Deborah Anderson ( WG2 N3641,  L2/09-285)