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ath9k: revert parts of the ANI changes in the latest mac80211 update to fix regressions

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36941
This commit is contained in:
Felix Fietkau 2013-06-16 12:56:16 +00:00
parent 50f12e1b98
commit 749e989215
1 changed files with 74 additions and 0 deletions
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74
package/mac80211/patches/556-ath9k_ani_revert.patch Normal file
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@ -0,0 +1,74 @@
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -20,8 +20,12 @@
#define BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
/* units are errors per second */
-#define ATH9K_ANI_OFDM_TRIG_HIGH 1000
+#define ATH9K_ANI_OFDM_TRIG_HIGH 3500
+#define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000
+
#define ATH9K_ANI_OFDM_TRIG_LOW 400
+#define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900
+
#define ATH9K_ANI_CCK_TRIG_HIGH 600
#define ATH9K_ANI_CCK_TRIG_LOW 300
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -177,14 +177,17 @@ static void ath9k_hw_set_ofdm_nil(struct
BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH)
weak_sig = true;
- /*
- * OFDM Weak signal detection is always enabled for AP mode.
- */
- if (ah->opmode != NL80211_IFTYPE_AP &&
- aniState->ofdmWeakSigDetect != weak_sig) {
- ath9k_hw_ani_control(ah,
- ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
- entry_ofdm->ofdm_weak_signal_on);
+ if (aniState->ofdmWeakSigDetect != weak_sig)
+ ath9k_hw_ani_control(ah,
+ ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
+ entry_ofdm->ofdm_weak_signal_on);
+
+ if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
+ ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
+ ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI;
+ } else {
+ ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI;
+ ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
}
}
@@ -420,25 +423,12 @@ void ath9k_hw_ani_monitor(struct ath_hw
ofdmPhyErrRate, aniState->cckNoiseImmunityLevel,
cckPhyErrRate, aniState->ofdmsTurn);
- if (aniState->listenTime > 5 * ah->aniperiod) {
- /*
- * Check if we need to lower immunity if
- * 5 ani_periods have passed.
- */
- if (ofdmPhyErrRate <= ah->config.ofdm_trig_low &&
- cckPhyErrRate <= ah->config.cck_trig_low) {
+ if (aniState->listenTime > ah->aniperiod) {
+ if (cckPhyErrRate < ah->config.cck_trig_low &&
+ ofdmPhyErrRate < ah->config.ofdm_trig_low) {
ath9k_hw_ani_lower_immunity(ah);
aniState->ofdmsTurn = !aniState->ofdmsTurn;
- }
- ath9k_ani_restart(ah);
- } else if (aniState->listenTime > ah->aniperiod) {
- /*
- * Check if immunity has to be raised,
- * (either OFDM or CCK).
- */
- if (ofdmPhyErrRate > ah->config.ofdm_trig_high &&
- (cckPhyErrRate <= ah->config.cck_trig_high ||
- aniState->ofdmsTurn)) {
+ } else if (ofdmPhyErrRate > ah->config.ofdm_trig_high) {
ath9k_hw_ani_ofdm_err_trigger(ah);
aniState->ofdmsTurn = false;
} else if (cckPhyErrRate > ah->config.cck_trig_high) {