diff options
author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2009-11-05 17:53:10 +0100 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-11-11 23:09:11 +0100 |
commit | 165864d08774823e3b88d5fcf4dad302700612e3 (patch) | |
tree | c3d4073035ff72282680bd3a8666188cea3bf0a6 /drivers | |
parent | ath9k_common: add new module to share 802.11n driver helpers (diff) | |
download | linux-165864d08774823e3b88d5fcf4dad302700612e3.tar.xz linux-165864d08774823e3b88d5fcf4dad302700612e3.zip |
ath9k_common: remove ath9k_compute_qual()
This is now deprecated and unused within mac80211, so time
to remove it as otherwise we'd be doing some unecessary
computations for nothing.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/common.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c index 5fb164e294de..80edf7a302ca 100644 --- a/drivers/net/wireless/ath/ath9k/common.c +++ b/drivers/net/wireless/ath/ath9k/common.c @@ -142,47 +142,6 @@ static u8 ath9k_process_rate(struct ath_common *common, return 0; } -/* - * Theory for reporting quality: - * - * At a hardware RSSI of 45 you will be able to use MCS 7 reliably. - * At a hardware RSSI of 45 you will be able to use MCS 15 reliably. - * At a hardware RSSI of 35 you should be able use 54 Mbps reliably. - * - * MCS 7 is the highets MCS index usable by a 1-stream device. - * MCS 15 is the highest MCS index usable by a 2-stream device. - * - * All ath9k devices are either 1-stream or 2-stream. - * - * How many bars you see is derived from the qual reporting. - * - * A more elaborate scheme can be used here but it requires tables - * of SNR/throughput for each possible mode used. For the MCS table - * you can refer to the wireless wiki: - * - * http://wireless.kernel.org/en/developers/Documentation/ieee80211/802.11n - * - */ -static int ath9k_compute_qual(struct ieee80211_hw *hw, - struct ath_rx_status *rx_stats) -{ - int qual; - - if (conf_is_ht(&hw->conf)) - qual = rx_stats->rs_rssi * 100 / 45; - else - qual = rx_stats->rs_rssi * 100 / 35; - - /* - * rssi can be more than 45 though, anything above that - * should be considered at 100% - */ - if (qual > 100) - qual = 100; - - return qual; -} - static void ath9k_process_rssi(struct ath_common *common, struct ieee80211_hw *hw, struct sk_buff *skb, @@ -256,7 +215,6 @@ int ath9k_cmn_rx_skb_preprocess(struct ath_common *common, rx_status->noise = common->ani.noise_floor; rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi; rx_status->antenna = rx_stats->rs_antenna; - rx_status->qual = ath9k_compute_qual(hw, rx_stats); rx_status->flag |= RX_FLAG_TSFT; return 0; |