I don't recall seeing any FreeBSD support for TI WLAN chips. Its a while since I looked at the state of Linux WLAN support but I think I've seen reports of no Linux driver for TI WLAN chips which would suggest programming documentation is probably pretty hard to get.
Can you plug it into a system to see if its recognised? If its in a system it should be possible to dump the card's PCI configuration information which may enable me to identify it.
sadly not as I don't feel like trying to disassemble either of my laptops to stick it in one of them and i don't have anything else that would take a mini-pci card.