The broadcom-sta package includes the kernel module 'wl', which contains
the Broadcom-provided proprietary kernel driver that supports a number of
their cards.  Known supported model numbers include the BCM4311, BCM4312,
BCM4321, and BCM4322 chipsets.

Read the included LICENSE.txt file (placed in /usr/doc) before using this.

You may also want to create /etc/modprobe.d/b43_blacklist.conf and add the 
following lines to it:
    blacklist b43
    blacklist b43legacy
    blacklist bcma
    blacklist ssb
