AR5K_TURBO_PLCP_BITS  216 dev/ic/ar5xxx.h #define AR5K_TURBO_NUM_BITS(_frmlen) (AR5K_TURBO_PLCP_BITS + (_frmlen << 3))
AR5K_TURBO_PLCP_BITS  219 dev/ic/ar5xxx.h #define AR5K_TURBO_NUM_BITS(_frmlen) (AR5K_TURBO_PLCP_BITS + (_frmlen << 3))