package/mac80211/patches/520-ath9k_common_clockrate.patch

   1 --- a/drivers/net/wireless/ath/ath.h
   2 +++ b/drivers/net/wireless/ath/ath.h
   3 @@ -145,6 +145,8 @@ struct ath_common {
   4         DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
   5         enum ath_crypt_caps crypt_caps;
   6
   7 +       unsigned int clockrate;
   8 +
   9         struct ath_regulatory regulatory;
  10         const struct ath_ops *ops;
  11         const struct ath_bus_ops *bus_ops;
  12 --- a/drivers/net/wireless/ath/ath9k/hw.c
  13 +++ b/drivers/net/wireless/ath/ath9k/hw.c
  14 @@ -91,29 +91,32 @@ static void ath9k_hw_ani_cache_ini_regs(
  15  /* Helper Functions */
  16  /********************/
  17
  18 -static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
  19 +static void ath9k_hw_set_clockrate(struct ath_hw *ah)
  20  {
  21         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  22 +       struct ath_common *common = ath9k_hw_common(ah);
  23 +       unsigned int clockrate;
  24
  25         if (!ah->curchan) /* should really check for CCK instead */
  26 -               return usecs *ATH9K_CLOCK_RATE_CCK;
  27 -       if (conf->channel->band == IEEE80211_BAND_2GHZ)
  28 -               return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
  29 -
  30 -       if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
  31 -               return usecs * ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
  32 +               clockrate = ATH9K_CLOCK_RATE_CCK;
  33 +       else if (conf->channel->band == IEEE80211_BAND_2GHZ)
  34 +               clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
  35 +       else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
  36 +               clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
  37         else
  38 -               return usecs * ATH9K_CLOCK_RATE_5GHZ_OFDM;
  39 +               clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
  40 +
  41 +       if (conf_is_ht40(conf))
  42 +               clockrate *= 2;
  43 +
  44 +       common->clockrate = clockrate;
  45  }
  46
  47  static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
  48  {
  49 -       struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  50 +       struct ath_common *common = ath9k_hw_common(ah);
  51
  52 -       if (conf_is_ht40(conf))
  53 -               return ath9k_hw_mac_clks(ah, usecs) * 2;
  54 -       else
  55 -               return ath9k_hw_mac_clks(ah, usecs);
  56 +       return usecs * common->clockrate;
  57  }
  58
  59  bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
  60 @@ -1168,6 +1171,7 @@ static bool ath9k_hw_channel_change(stru
  61                           "Failed to set channel\n");
  62                 return false;
  63         }
  64 +       ath9k_hw_set_clockrate(ah);
  65
  66         ah->eep_ops->set_txpower(ah, chan,
  67                              ath9k_regd_get_ctl(regulatory, chan),
  68 @@ -1380,6 +1384,8 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  69         if (r)
  70                 return r;
  71
  72 +       ath9k_hw_set_clockrate(ah);
  73 +
  74         ENABLE_REGWRITE_BUFFER(ah);
  75
  76         for (i = 0; i < AR_NUM_DCU; i++)
  77 --- a/drivers/net/wireless/ath/ath9k/ani.c
  78 +++ b/drivers/net/wireless/ath/ath9k/ani.c
  79 @@ -465,35 +465,13 @@ static void ath9k_hw_ani_lower_immunity(
  80                 ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel - 1);
  81  }
  82
  83 -static u8 ath9k_hw_chan_2_clockrate_mhz(struct ath_hw *ah)
  84 -{
  85 -       struct ath9k_channel *chan = ah->curchan;
  86 -       struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  87 -       u8 clockrate; /* in MHz */
  88 -
  89 -       if (!ah->curchan) /* should really check for CCK instead */
  90 -               clockrate = ATH9K_CLOCK_RATE_CCK;
  91 -       else if (conf->channel->band == IEEE80211_BAND_2GHZ)
  92 -               clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
  93 -       else if (IS_CHAN_A_FAST_CLOCK(ah, chan))
  94 -               clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
  95 -       else
  96 -               clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
  97 -
  98 -       if (conf_is_ht40(conf))
  99 -               return clockrate * 2;
 100 -
 101 -       return clockrate;
 102 -}
 103 -
 104  static int32_t ath9k_hw_ani_get_listen_time(struct ath_hw *ah)
 105  {
 106 +       struct ath_common *common = ath9k_hw_common(ah);
 107         int32_t listen_time;
 108 -       int32_t clock_rate;
 109
 110         ath9k_hw_update_cycle_counters(ah);
 111 -       clock_rate = ath9k_hw_chan_2_clockrate_mhz(ah) * 1000;
 112 -       listen_time = ah->listen_time / clock_rate;
 113 +       listen_time = ah->listen_time / (common->clockrate * 1000);
 114         ah->listen_time = 0;
 115
 116         return listen_time;