diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-08-01 11:53:19 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-08-01 15:52:04 -0400 |
| commit | 552bde40dd4c5d5b3e48e950e6bf2bfb0de6ab1f (patch) | |
| tree | e90b27b51474e9077a754648650ecedef5c54562 | |
| parent | 9383be420460908df0118d54894ef65317821f3a (diff) | |
| download | nfc-next-552bde40dd4c5d5b3e48e950e6bf2bfb0de6ab1f.tar.gz | |
ath9k: Add ALT check for cards with GROUP-3 config
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/antenna.c | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c index 69674d4ee49671..cfb43ccc0852ab 100644 --- a/drivers/net/wireless/ath/ath9k/antenna.c +++ b/drivers/net/wireless/ath/ath9k/antenna.c @@ -25,28 +25,45 @@ static inline bool ath_is_alt_ant_ratio_better(int alt_ratio, int maxdelta, (alt_rssi_avg > main_rssi_avg + mindelta)) && (pkt_count > 50); } -static inline bool ath_ant_div_comb_alt_check(u8 div_group, int alt_ratio, - int curr_main_set, int curr_alt_set, - int alt_rssi_avg, int main_rssi_avg) +static inline bool ath_ant_div_comb_alt_check(struct ath_hw_antcomb_conf conf, + int alt_ratio, int alt_rssi_avg, + int main_rssi_avg) { - bool result = false; - switch (div_group) { + bool result, set1, set2; + + result = set1 = set2 = false; + + if (conf.main_lna_conf == ATH_ANT_DIV_COMB_LNA2 && + conf.alt_lna_conf == ATH_ANT_DIV_COMB_LNA1) + set1 = true; + + if (conf.main_lna_conf == ATH_ANT_DIV_COMB_LNA1 && + conf.alt_lna_conf == ATH_ANT_DIV_COMB_LNA2) + set2 = true; + + switch (conf.div_group) { case 0: if (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO) result = true; break; case 1: case 2: - if ((((curr_main_set == ATH_ANT_DIV_COMB_LNA2) && - (curr_alt_set == ATH_ANT_DIV_COMB_LNA1) && - (alt_rssi_avg >= (main_rssi_avg - 5))) || - ((curr_main_set == ATH_ANT_DIV_COMB_LNA1) && - (curr_alt_set == ATH_ANT_DIV_COMB_LNA2) && - (alt_rssi_avg >= (main_rssi_avg - 2)))) && - (alt_rssi_avg >= 4)) + if (alt_rssi_avg < 4) + break; + + if ((set1 && (alt_rssi_avg >= (main_rssi_avg - 5))) || + (set2 && (alt_rssi_avg >= (main_rssi_avg - 2)))) result = true; - else - result = false; + + break; + case 3: + if (alt_rssi_avg < 4) + break; + + if ((set1 && (alt_rssi_avg >= (main_rssi_avg - 3))) || + (set2 && (alt_rssi_avg >= (main_rssi_avg + 3)))) + result = true; + break; } @@ -632,9 +649,8 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs) } if (!antcomb->scan) { - if (ath_ant_div_comb_alt_check(div_ant_conf.div_group, - alt_ratio, curr_main_set, curr_alt_set, - alt_rssi_avg, main_rssi_avg)) { + if (ath_ant_div_comb_alt_check(div_ant_conf, alt_ratio, + alt_rssi_avg, main_rssi_avg)) { if (curr_alt_set == ATH_ANT_DIV_COMB_LNA2) { /* Switch main and alt LNA */ div_ant_conf.main_lna_conf = |