--- zzzz-none-000/linux-3.10.107/drivers/net/wireless/ath/ath9k/ani.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/net/wireless/ath/ath9k/ani.c 2021-02-04 17:41:59.000000000 +0000 @@ -46,8 +46,8 @@ { 5, 4, 1 }, /* lvl 5 */ { 6, 5, 1 }, /* lvl 6 */ { 7, 6, 1 }, /* lvl 7 */ - { 7, 6, 0 }, /* lvl 8 */ - { 7, 7, 0 } /* lvl 9 */ + { 7, 7, 1 }, /* lvl 8 */ + { 7, 8, 0 } /* lvl 9 */ }; #define ATH9K_ANI_OFDM_NUM_LEVEL \ ARRAY_SIZE(ofdm_level_table) @@ -91,8 +91,8 @@ { 4, 0 }, /* lvl 4 */ { 5, 0 }, /* lvl 5 */ { 6, 0 }, /* lvl 6 */ - { 6, 0 }, /* lvl 7 (only for high rssi) */ - { 7, 0 } /* lvl 8 (only for high rssi) */ + { 7, 0 }, /* lvl 7 (only for high rssi) */ + { 8, 0 } /* lvl 8 (only for high rssi) */ }; #define ATH9K_ANI_CCK_NUM_LEVEL \ @@ -107,21 +107,31 @@ static void ath9k_hw_update_mibstats(struct ath_hw *ah, struct ath9k_mib_stats *stats) { - stats->ackrcv_bad += REG_READ(ah, AR_ACK_FAIL); - stats->rts_bad += REG_READ(ah, AR_RTS_FAIL); - stats->fcs_bad += REG_READ(ah, AR_FCS_FAIL); - stats->rts_good += REG_READ(ah, AR_RTS_OK); - stats->beacons += REG_READ(ah, AR_BEACON_CNT); + u32 addr[5] = {AR_RTS_OK, AR_RTS_FAIL, AR_ACK_FAIL, + AR_FCS_FAIL, AR_BEACON_CNT}; + u32 data[5]; + + REG_READ_MULTI(ah, &addr[0], &data[0], 5); + /* AR_RTS_OK */ + stats->rts_good += data[0]; + /* AR_RTS_FAIL */ + stats->rts_bad += data[1]; + /* AR_ACK_FAIL */ + stats->ackrcv_bad += data[2]; + /* AR_FCS_FAIL */ + stats->fcs_bad += data[3]; + /* AR_BEACON_CNT */ + stats->beacons += data[4]; } static void ath9k_ani_restart(struct ath_hw *ah) { struct ar5416AniState *aniState; - if (!DO_ANI(ah)) + if (!ah->curchan) return; - aniState = &ah->curchan->ani; + aniState = &ah->ani; aniState->listenTime = 0; ENABLE_REGWRITE_BUFFER(ah); @@ -143,7 +153,7 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel, bool scan) { - struct ar5416AniState *aniState = &ah->curchan->ani; + struct ar5416AniState *aniState = &ah->ani; struct ath_common *common = ath9k_hw_common(ah); const struct ani_ofdm_level_entry *entry_ofdm; const struct ani_cck_level_entry *entry_cck; @@ -155,6 +165,9 @@ ATH9K_ANI_RSSI_THR_LOW, ATH9K_ANI_RSSI_THR_HIGH); + if (AR_SREV_9100(ah) && immunityLevel < ATH9K_ANI_OFDM_DEF_LEVEL) + immunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL; + if (!scan) aniState->ofdmNoiseImmunityLevel = immunityLevel; @@ -176,11 +189,26 @@ if (ah->opmode == NL80211_IFTYPE_STATION && BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH) weak_sig = true; + /* + * Newer chipsets are better at dealing with high PHY error counts - + * keep weak signal detection enabled when no RSSI threshold is + * available to determine if it is needed (mode != STA) + */ + else if (AR_SREV_9300_20_OR_LATER(ah) && + ah->opmode != NL80211_IFTYPE_STATION) + weak_sig = true; + + /* Older chipsets are more sensitive to high PHY error counts */ + else if (!AR_SREV_9300_20_OR_LATER(ah) && + aniState->ofdmNoiseImmunityLevel >= 8) + weak_sig = false; if (aniState->ofdmWeakSigDetect != weak_sig) - ath9k_hw_ani_control(ah, - ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - entry_ofdm->ofdm_weak_signal_on); + ath9k_hw_ani_control(ah, ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, + weak_sig); + + if (!AR_SREV_9300_20_OR_LATER(ah)) + return; if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) { ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH; @@ -195,10 +223,10 @@ { struct ar5416AniState *aniState; - if (!DO_ANI(ah)) + if (!ah->curchan) return; - aniState = &ah->curchan->ani; + aniState = &ah->ani; if (aniState->ofdmNoiseImmunityLevel < ATH9K_ANI_OFDM_MAX_LEVEL) ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel + 1, false); @@ -210,7 +238,7 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel, bool scan) { - struct ar5416AniState *aniState = &ah->curchan->ani; + struct ar5416AniState *aniState = &ah->ani; struct ath_common *common = ath9k_hw_common(ah); const struct ani_ofdm_level_entry *entry_ofdm; const struct ani_cck_level_entry *entry_cck; @@ -220,6 +248,9 @@ BEACON_RSSI(ah), ATH9K_ANI_RSSI_THR_LOW, ATH9K_ANI_RSSI_THR_HIGH); + if (AR_SREV_9100(ah) && immunityLevel < ATH9K_ANI_CCK_DEF_LEVEL) + immunityLevel = ATH9K_ANI_CCK_DEF_LEVEL; + if (ah->opmode == NL80211_IFTYPE_STATION && BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_LOW && immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI) @@ -238,7 +269,8 @@ entry_cck->fir_step_level); /* Skip MRC CCK for pre AR9003 families */ - if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) + if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9485(ah) || + AR_SREV_9565(ah) || AR_SREV_9561(ah)) return; if (aniState->mrcCCK != entry_cck->mrc_cck_on) @@ -251,10 +283,10 @@ { struct ar5416AniState *aniState; - if (!DO_ANI(ah)) + if (!ah->curchan) return; - aniState = &ah->curchan->ani; + aniState = &ah->ani; if (aniState->cckNoiseImmunityLevel < ATH9K_ANI_CCK_MAX_LEVEL) ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel + 1, @@ -269,7 +301,7 @@ { struct ar5416AniState *aniState; - aniState = &ah->curchan->ani; + aniState = &ah->ani; /* lower OFDM noise immunity */ if (aniState->ofdmNoiseImmunityLevel > 0 && @@ -292,31 +324,17 @@ */ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning) { - struct ar5416AniState *aniState = &ah->curchan->ani; + struct ar5416AniState *aniState = &ah->ani; struct ath9k_channel *chan = ah->curchan; struct ath_common *common = ath9k_hw_common(ah); int ofdm_nil, cck_nil; - if (!DO_ANI(ah)) + if (!ah->curchan) return; BUG_ON(aniState == NULL); ah->stats.ast_ani_reset++; - /* only allow a subset of functions in AP mode */ - if (ah->opmode == NL80211_IFTYPE_AP) { - if (IS_CHAN_2GHZ(chan)) { - ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL | - ATH9K_ANI_FIRSTEP_LEVEL); - if (AR_SREV_9300_20_OR_LATER(ah)) - ah->ani_function |= ATH9K_ANI_MRC_CCK; - } else - ah->ani_function = 0; - } - - /* always allow mode (on/off) to be controlled */ - ah->ani_function |= ATH9K_ANI_MODE; - ofdm_nil = max_t(int, ATH9K_ANI_OFDM_DEF_LEVEL, aniState->ofdmNoiseImmunityLevel); cck_nil = max_t(int, ATH9K_ANI_CCK_DEF_LEVEL, @@ -336,10 +354,9 @@ aniState->cckNoiseImmunityLevel != ATH9K_ANI_CCK_DEF_LEVEL) { ath_dbg(common, ANI, - "Restore defaults: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n", + "Restore defaults: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n", ah->opmode, chan->channel, - chan->channelFlags, is_scanning, aniState->ofdmNoiseImmunityLevel, aniState->cckNoiseImmunityLevel); @@ -352,10 +369,9 @@ * restore historical levels for this channel */ ath_dbg(common, ANI, - "Restore history: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n", + "Restore history: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n", ah->opmode, chan->channel, - chan->channelFlags, is_scanning, aniState->ofdmNoiseImmunityLevel, aniState->cckNoiseImmunityLevel); @@ -363,24 +379,13 @@ 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 - * interrupts (so we can count each one) - */ ath9k_ani_restart(ah); - - ENABLE_REGWRITE_BUFFER(ah); - - REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); - REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); - - REGWRITE_BUFFER_FLUSH(ah); } static bool ath9k_hw_ani_read_counters(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); - struct ar5416AniState *aniState = &ah->curchan->ani; + struct ar5416AniState *aniState = &ah->ani; u32 phyCnt1, phyCnt2; int32_t listenTime; @@ -415,10 +420,10 @@ struct ath_common *common = ath9k_hw_common(ah); u32 ofdmPhyErrRate, cckPhyErrRate; - if (!DO_ANI(ah)) + if (!ah->curchan) return; - aniState = &ah->curchan->ani; + aniState = &ah->ani; if (!ath9k_hw_ani_read_counters(ah)) return; @@ -490,33 +495,30 @@ void ath9k_hw_ani_init(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); - int i; + struct ar5416AniState *ani = &ah->ani; ath_dbg(common, ANI, "Initialize ANI\n"); - ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH; - ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW; - - ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH; - ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW; - - for (i = 0; i < ARRAY_SIZE(ah->channels); i++) { - struct ath9k_channel *chan = &ah->channels[i]; - struct ar5416AniState *ani = &chan->ani; - - ani->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL; - - ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL; - - ani->mrcCCK = AR_SREV_9300_20_OR_LATER(ah) ? true : false; - - ani->ofdmsTurn = true; - - ani->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG; - ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL; - ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL; + if (AR_SREV_9300_20_OR_LATER(ah)) { + ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH; + ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW; + ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH; + ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW; + } else { + ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_OLD; + ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_OLD; + ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH_OLD; + ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW_OLD; } + ani->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL; + ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL; + ani->mrcCCK = AR_SREV_9300_20_OR_LATER(ah) ? true : false; + ani->ofdmsTurn = true; + ani->ofdmWeakSigDetect = true; + ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL; + ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL; + /* * since we expect some ongoing maintenance on the tables, let's sanity * check here default level should not modify INI setting. @@ -524,9 +526,6 @@ ah->aniperiod = ATH9K_ANI_PERIOD; ah->config.ani_poll_interval = ATH9K_ANI_POLLINTERVAL; - if (ah->config.enable_ani) - ah->proc_phyerr |= HAL_PROCESS_ANI; - ath9k_ani_restart(ah); ath9k_enable_mib_counters(ah); }