CCK_DELTA
ah->tx_power[0] = CCK_DELTA(ah, rate_array[rate1l]);
ah->tx_power[1] = CCK_DELTA(ah, min(rate_array[rate2l],
ah->tx_power[2] = CCK_DELTA(ah, min(rate_array[rate5_5l],
ah->tx_power[3] = CCK_DELTA(ah, min(rate_array[rate11l],