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ath9k: improve ani behavior during scanning

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32511 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-06-27 12:45:00 +00:00
parent fc00da6b46
commit 1ab7fc1991
1 changed files with 73 additions and 17 deletions
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90
package/mac80211/patches/564-ath9k_fix_ani_update.patch
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@ -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;
entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
+ if (!scan)
aniState->ofdmNoiseImmunityLevel = immunityLevel;
@@ -222,9 +220,7 @@ static void ath9k_hw_set_cck_nil(struct
entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
@@ -199,13 +200,14 @@ static void ath9k_hw_ani_ofdm_err_trigge
aniState = &ah->curchan->ani;
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;
entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
+ if (!scan)
aniState->cckNoiseImmunityLevel = immunityLevel;
@@ -338,7 +334,6 @@ void ath9k_ani_reset(struct ath_hw *ah,
entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
@@ -254,7 +256,8 @@ static void ath9k_hw_ani_cck_err_trigger
aniState = &ah->curchan->ani;
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);
@ -30,16 +81,21 @@
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;