package/kernel/mac80211/patches/556-ath9k_ani_revert.patch

   1 --- a/drivers/net/wireless/ath/ath9k/ani.h
   2 +++ b/drivers/net/wireless/ath/ath9k/ani.h
   3 @@ -20,8 +20,12 @@
   4  #define BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
   5
   6  /* units are errors per second */
   7 -#define ATH9K_ANI_OFDM_TRIG_HIGH          1000
   8 +#define ATH9K_ANI_OFDM_TRIG_HIGH          3500
   9 +#define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000
  10 +
  11  #define ATH9K_ANI_OFDM_TRIG_LOW           400
  12 +#define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900
  13 +
  14  #define ATH9K_ANI_CCK_TRIG_HIGH           600
  15  #define ATH9K_ANI_CCK_TRIG_LOW            300
  16
  17 --- a/drivers/net/wireless/ath/ath9k/ani.c
  18 +++ b/drivers/net/wireless/ath/ath9k/ani.c
  19 @@ -177,14 +177,17 @@ static void ath9k_hw_set_ofdm_nil(struct
  20             BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH)
  21                 weak_sig = true;
  22
  23 -       /*
  24 -        * OFDM Weak signal detection is always enabled for AP mode.
  25 -        */
  26 -       if (ah->opmode != NL80211_IFTYPE_AP &&
  27 -           aniState->ofdmWeakSigDetect != weak_sig) {
  28 -               ath9k_hw_ani_control(ah,
  29 -                                    ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
  30 -                                    entry_ofdm->ofdm_weak_signal_on);
  31 +       if (aniState->ofdmWeakSigDetect != weak_sig)
  32 +                       ath9k_hw_ani_control(ah,
  33 +                               ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
  34 +                               entry_ofdm->ofdm_weak_signal_on);
  35 +
  36 +       if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
  37 +               ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
  38 +               ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI;
  39 +       } else {
  40 +               ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI;
  41 +               ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
  42         }
  43  }
  44
  45 @@ -420,25 +423,12 @@ void ath9k_hw_ani_monitor(struct ath_hw
  46                 ofdmPhyErrRate, aniState->cckNoiseImmunityLevel,
  47                 cckPhyErrRate, aniState->ofdmsTurn);
  48
  49 -       if (aniState->listenTime > 5 * ah->aniperiod) {
  50 -               /*
  51 -                * Check if we need to lower immunity if
  52 -                * 5 ani_periods have passed.
  53 -                */
  54 -               if (ofdmPhyErrRate <= ah->config.ofdm_trig_low &&
  55 -                   cckPhyErrRate <= ah->config.cck_trig_low) {
  56 +       if (aniState->listenTime > ah->aniperiod) {
  57 +               if (cckPhyErrRate < ah->config.cck_trig_low &&
  58 +                   ofdmPhyErrRate < ah->config.ofdm_trig_low) {
  59                         ath9k_hw_ani_lower_immunity(ah);
  60                         aniState->ofdmsTurn = !aniState->ofdmsTurn;
  61 -               }
  62 -               ath9k_ani_restart(ah);
  63 -       } else if (aniState->listenTime > ah->aniperiod) {
  64 -               /*
  65 -                * Check if immunity has to be raised,
  66 -                * (either OFDM or CCK).
  67 -                */
  68 -               if (ofdmPhyErrRate > ah->config.ofdm_trig_high &&
  69 -                   (cckPhyErrRate <= ah->config.cck_trig_high ||
  70 -                    aniState->ofdmsTurn)) {
  71 +               } else if (ofdmPhyErrRate > ah->config.ofdm_trig_high) {
  72                         ath9k_hw_ani_ofdm_err_trigger(ah);
  73                         aniState->ofdmsTurn = false;
  74                 } else if (cckPhyErrRate > ah->config.cck_trig_high) {