package/mac80211/patches/560-ath9k_coverage_class.patch

   1 --- a/drivers/net/wireless/ath/ath9k/hw.c
   2 +++ b/drivers/net/wireless/ath/ath9k/hw.c
   3 @@ -1211,6 +1211,7 @@ void ath9k_hw_init_global_settings(struc
   4  {
   5         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
   6         int acktimeout;
   7 +       int slottime;
   8         int sifstime;
   9
  10         ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
  11 @@ -1225,8 +1226,10 @@ void ath9k_hw_init_global_settings(struc
  12         else
  13                 sifstime = 10;
  14
  15 -       acktimeout = ah->slottime + sifstime;
  16 -       ath9k_hw_setslottime(ah, ah->slottime);
  17 +       /* As defined by IEEE 802.11-2007 17.3.8.6 */
  18 +       slottime = ah->slottime + 3 * ah->coverage_class;
  19 +       acktimeout = slottime + sifstime;
  20 +       ath9k_hw_setslottime(ah, slottime);
  21         ath9k_hw_set_ack_timeout(ah, acktimeout);
  22         ath9k_hw_set_cts_timeout(ah, acktimeout);
  23         if (ah->globaltxtimeout != (u32) -1)
  24 --- a/drivers/net/wireless/ath/ath9k/hw.h
  25 +++ b/drivers/net/wireless/ath/ath9k/hw.h
  26 @@ -551,6 +551,7 @@ struct ath_hw {
  27         u32 *bank6Temp;
  28
  29         int16_t txpower_indexoffset;
  30 +       int coverage_class;
  31         u32 beacon_interval;
  32         u32 slottime;
  33         u32 globaltxtimeout;
  34 --- a/drivers/net/wireless/ath/ath9k/main.c
  35 +++ b/drivers/net/wireless/ath/ath9k/main.c
  36 @@ -2015,6 +2015,18 @@ static void ath9k_sw_scan_complete(struc
  37         mutex_unlock(&sc->mutex);
  38  }
  39
  40 +static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
  41 +{
  42 +       struct ath_wiphy *aphy = hw->priv;
  43 +       struct ath_softc *sc = aphy->sc;
  44 +       struct ath_hw *ah = sc->sc_ah;
  45 +
  46 +       mutex_lock(&sc->mutex);
  47 +       ah->coverage_class = coverage_class;
  48 +       ath9k_hw_init_global_settings(ah);
  49 +       mutex_unlock(&sc->mutex);
  50 +}
  51 +
  52  struct ieee80211_ops ath9k_ops = {
  53         .tx                 = ath9k_tx,
  54         .start              = ath9k_start,
  55 @@ -2034,4 +2046,5 @@ struct ieee80211_ops ath9k_ops = {
  56         .sw_scan_start      = ath9k_sw_scan_start,
  57         .sw_scan_complete   = ath9k_sw_scan_complete,
  58         .rfkill_poll        = ath9k_rfkill_poll_state,
  59 +       .set_coverage_class = ath9k_set_coverage_class,
  60  };