If this isn't an AP and the last PS-Poll frame was sent succesfully (see IEEE 802.11-1999 7.2.1.4)
Calculate both of the PowerSavingControlBits
- If this is an AP
- FIXME
If we're in Ad-Hoc mode, set the variable that keeps track of whether to set bit 0x4 in MMIO offset 0x124 to true