From: Sujith Manoharan <sujith@msujith.org>
To: John Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH 3/8] ath9k: Add ALT check for cards with GROUP-3 config
Date: Thu, 1 Aug 2013 11:53:19 +0530 [thread overview]
Message-ID: <1375338204-2021-3-git-send-email-sujith@msujith.org> (raw)
In-Reply-To: <1375338204-2021-1-git-send-email-sujith@msujith.org>
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath9k/antenna.c | 50 +++++++++++++++++++++-----------
1 file changed, 33 insertions(+), 17 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index 130e983..ee25165 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -64,28 +64,45 @@ 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;
}
@@ -671,9 +688,8 @@ 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 =
--
1.8.3.4
next prev parent reply other threads:[~2013-08-01 6:26 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-01 6:23 [PATCH 1/8] ath9k: Do a quick scan only when scan_not_start is true Sujith Manoharan
2013-08-01 6:23 ` [PATCH 2/8] ath9k: Use a subroutine to check for short scan Sujith Manoharan
2013-08-01 6:23 ` Sujith Manoharan [this message]
2013-08-01 6:23 ` [PATCH 4/8] ath9k: Use a subroutine to try LNA switch Sujith Manoharan
2013-08-01 6:23 ` [PATCH 5/8] ath9k: Use a helper function for checking LNA options Sujith Manoharan
2013-08-01 6:23 ` [PATCH 6/8] ath9k: Simplify checks in quick_scan Sujith Manoharan
2013-08-01 6:23 ` [PATCH 7/8] ath9k: Use a subroutine to calculate ALT ratio Sujith Manoharan
2013-08-01 6:23 ` [PATCH 8/8] ath9k: Add statistics for antenna diversity Sujith Manoharan
2013-08-01 15:27 ` [PATCH v2 " Sujith Manoharan
2013-08-01 16:37 ` cross compile backports? Jonathan Bagg
2013-08-01 17:47 ` Solomon Peachy
2013-08-01 19:03 ` Luis R. Rodriguez
2013-08-01 19:12 ` cross compile backports with LTIB Jonathan Bagg
2013-08-01 19:17 ` Jonathan Bagg
2013-08-01 19:44 ` [PATCH v2 8/8] ath9k: Add statistics for antenna diversity John W. Linville
2013-08-01 19:53 ` John W. Linville
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