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ath9k: Store noise immunity values across scanning
CCK/OFDM noise immunilty values are always reset to defaults during bgscan. This could affect the link quality and performance when the STA is associated in a noisy channel. So do not override the learned values across the scanning. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -273,7 +273,8 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel)
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immunityLevel, aniState->noiseFloor,
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aniState->rssiThrLow, aniState->rssiThrHigh);
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aniState->ofdmNoiseImmunityLevel = immunityLevel;
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if (aniState->update_ani)
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aniState->ofdmNoiseImmunityLevel = immunityLevel;
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entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
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entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
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@ -346,7 +347,8 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel)
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immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI)
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immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI;
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aniState->cckNoiseImmunityLevel = immunityLevel;
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if (aniState->update_ani)
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aniState->cckNoiseImmunityLevel = immunityLevel;
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entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
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entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
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@ -593,6 +595,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
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aniState->ofdmNoiseImmunityLevel,
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aniState->cckNoiseImmunityLevel);
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aniState->update_ani = false;
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ath9k_hw_set_ofdm_nil(ah, ATH9K_ANI_OFDM_DEF_LEVEL);
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ath9k_hw_set_cck_nil(ah, ATH9K_ANI_CCK_DEF_LEVEL);
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}
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@ -609,6 +612,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
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aniState->ofdmNoiseImmunityLevel,
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aniState->cckNoiseImmunityLevel);
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aniState->update_ani = true;
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ath9k_hw_set_ofdm_nil(ah,
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aniState->ofdmNoiseImmunityLevel);
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ath9k_hw_set_cck_nil(ah,
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@ -892,6 +896,8 @@ void ath9k_hw_ani_init(struct ath_hw *ah)
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ani->ofdmWeakSigDetectOff =
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!ATH9K_ANI_USE_OFDM_WEAK_SIG;
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ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
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ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;
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ani->update_ani = false;
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}
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/*
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@ -122,6 +122,7 @@ struct ar5416AniState {
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u8 firstepLevel;
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u8 ofdmWeakSigDetectOff;
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u8 cckWeakSigThreshold;
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bool update_ani;
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u32 listenTime;
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int32_t rssiThrLow;
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int32_t rssiThrHigh;
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