ath9k: improve ani behavior during scanning
authorFelix Fietkau <nbd@openwrt.org>
Wed, 27 Jun 2012 12:45:00 +0000 (12:45 +0000)
committerFelix Fietkau <nbd@openwrt.org>
Wed, 27 Jun 2012 12:45:00 +0000 (12:45 +0000)
SVN-Revision: 32511

package/mac80211/patches/564-ath9k_fix_ani_update.patch

index 91ba67d..19df768 100644 (file)
@@ -1,28 +1,79 @@
 --- a/drivers/net/wireless/ath/ath9k/ani.c
 +++ b/drivers/net/wireless/ath/ath9k/ani.c
-@@ -153,9 +153,7 @@ static void ath9k_hw_set_ofdm_nil(struct
+@@ -140,7 +140,8 @@ static void ath9k_ani_restart(struct ath
+ }
+ /* Adjust the OFDM Noise Immunity Level */
+-static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel)
++static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
++                                bool scan)
+ {
+       struct ar5416AniState *aniState = &ah->curchan->ani;
+       struct ath_common *common = ath9k_hw_common(ah);
+@@ -153,7 +154,7 @@ static void ath9k_hw_set_ofdm_nil(struct
                immunityLevel, BEACON_RSSI(ah),
                aniState->rssiThrLow, aniState->rssiThrHigh);
  
 -      if (aniState->update_ani)
--              aniState->ofdmNoiseImmunityLevel = immunityLevel;
--
-+      aniState->ofdmNoiseImmunityLevel = immunityLevel;
++      if (!scan)
+               aniState->ofdmNoiseImmunityLevel = immunityLevel;
        entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
-       entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
+@@ -199,13 +200,14 @@ static void ath9k_hw_ani_ofdm_err_trigge
+       aniState = &ah->curchan->ani;
  
-@@ -222,9 +220,7 @@ static void ath9k_hw_set_cck_nil(struct 
+       if (aniState->ofdmNoiseImmunityLevel < ATH9K_ANI_OFDM_MAX_LEVEL)
+-              ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel + 1);
++              ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel + 1, false);
+ }
+ /*
+  * Set the ANI settings to match an CCK level.
+  */
+-static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel)
++static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel,
++                               bool scan)
+ {
+       struct ar5416AniState *aniState = &ah->curchan->ani;
+       struct ath_common *common = ath9k_hw_common(ah);
+@@ -222,7 +224,7 @@ static void ath9k_hw_set_cck_nil(struct 
            immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI)
                immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI;
  
 -      if (aniState->update_ani)
--              aniState->cckNoiseImmunityLevel = immunityLevel;
--
-+      aniState->cckNoiseImmunityLevel = immunityLevel;
++      if (!scan)
+               aniState->cckNoiseImmunityLevel = immunityLevel;
        entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
-       entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
+@@ -254,7 +256,8 @@ static void ath9k_hw_ani_cck_err_trigger
+       aniState = &ah->curchan->ani;
  
-@@ -338,7 +334,6 @@ void ath9k_ani_reset(struct ath_hw *ah, 
+       if (aniState->cckNoiseImmunityLevel < ATH9K_ANI_CCK_MAX_LEVEL)
+-              ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel + 1);
++              ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel + 1,
++                                   false);
+ }
+ /*
+@@ -270,13 +273,15 @@ static void ath9k_hw_ani_lower_immunity(
+       /* lower OFDM noise immunity */
+       if (aniState->ofdmNoiseImmunityLevel > 0 &&
+           (aniState->ofdmsTurn || aniState->cckNoiseImmunityLevel == 0)) {
+-              ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel - 1);
++              ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel - 1,
++                                    false);
+               return;
+       }
+       /* lower CCK noise immunity */
+       if (aniState->cckNoiseImmunityLevel > 0)
+-              ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel - 1);
++              ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel - 1,
++                                   false);
+ }
+ /*
+@@ -338,7 +343,6 @@ void ath9k_ani_reset(struct ath_hw *ah, 
                                aniState->ofdmNoiseImmunityLevel,
                                aniState->cckNoiseImmunityLevel);
  
                        ofdm_nil = ATH9K_ANI_OFDM_DEF_LEVEL;
                        cck_nil = ATH9K_ANI_CCK_DEF_LEVEL;
                }
-@@ -354,8 +349,6 @@ void ath9k_ani_reset(struct ath_hw *ah, 
+@@ -354,11 +358,9 @@ void ath9k_ani_reset(struct ath_hw *ah, 
                        is_scanning,
                        aniState->ofdmNoiseImmunityLevel,
                        aniState->cckNoiseImmunityLevel);
 -
 -                      aniState->update_ani = true;
        }
-       ath9k_hw_set_ofdm_nil(ah, ofdm_nil);
-       ath9k_hw_set_cck_nil(ah, cck_nil);
-@@ -538,7 +531,6 @@ void ath9k_hw_ani_init(struct ath_hw *ah
+-      ath9k_hw_set_ofdm_nil(ah, ofdm_nil);
+-      ath9k_hw_set_cck_nil(ah, cck_nil);
++      ath9k_hw_set_ofdm_nil(ah, ofdm_nil, is_scanning);
++      ath9k_hw_set_cck_nil(ah, cck_nil, is_scanning);
+       /*
+        * enable phy counters if hw supports or if not, enable phy
+@@ -538,7 +540,6 @@ void ath9k_hw_ani_init(struct ath_hw *ah
                ani->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
                ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
                ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;