package/mac80211/patches/550-ath9k-enable-2GHz-band-only-if-the-device-supports.patch

   1 --- a/drivers/net/wireless/ath/ath9k/hw.c
   2 +++ b/drivers/net/wireless/ath/ath9k/hw.c
   3 @@ -979,7 +979,10 @@ int ath9k_hw_init(struct ath_hw *ah)
   4                 return r;
   5
   6         ath9k_hw_init_mode_gain_regs(ah);
   7 -       ath9k_hw_fill_cap_info(ah);
   8 +       r = ath9k_hw_fill_cap_info(ah);
   9 +       if (r)
  10 +               return r;
  11 +
  12         ath9k_hw_init_11a_eeprom_fix(ah);
  13
  14         r = ath9k_hw_init_macaddr(ah);
  15 @@ -3115,7 +3118,7 @@ EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_ti
  16  /* HW Capabilities */
  17  /*******************/
  18
  19 -void ath9k_hw_fill_cap_info(struct ath_hw *ah)
  20 +int ath9k_hw_fill_cap_info(struct ath_hw *ah)
  21  {
  22         struct ath9k_hw_capabilities *pCap = &ah->caps;
  23         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
  24 @@ -3146,6 +3149,12 @@ void ath9k_hw_fill_cap_info(struct ath_h
  25         }
  26
  27         eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
  28 +       if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
  29 +               ath_print(common, ATH_DBG_FATAL,
  30 +                         "no band has been marked as supported in EEPROM.\n");
  31 +               return -EINVAL;
  32 +       }
  33 +
  34         bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
  35
  36         if (eeval & AR5416_OPFLAGS_11A) {
  37 @@ -3305,6 +3314,8 @@ void ath9k_hw_fill_cap_info(struct ath_h
  38         } else {
  39                 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
  40         }
  41 +
  42 +       return 0;
  43  }
  44
  45  bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
  46 --- a/drivers/net/wireless/ath/ath9k/hw.h
  47 +++ b/drivers/net/wireless/ath/ath9k/hw.h
  48 @@ -619,7 +619,7 @@ void ath9k_hw_detach(struct ath_hw *ah);
  49  int ath9k_hw_init(struct ath_hw *ah);
  50  int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
  51                    bool bChannelChange);
  52 -void ath9k_hw_fill_cap_info(struct ath_hw *ah);
  53 +int ath9k_hw_fill_cap_info(struct ath_hw *ah);
  54  bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
  55                             u32 capability, u32 *result);
  56  bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
  57 --- a/drivers/net/wireless/ath/ath9k/main.c
  58 +++ b/drivers/net/wireless/ath/ath9k/main.c
  59 @@ -1805,13 +1805,15 @@ static int ath_init_softc(u16 devid, str
  60
  61         /* setup channels and rates */
  62
  63 -       sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
  64 -       sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
  65 -       sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
  66 -               ARRAY_SIZE(ath9k_2ghz_chantable);
  67 -       sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
  68 -       sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
  69 -               ARRAY_SIZE(ath9k_legacy_rates);
  70 +       if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
  71 +               sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
  72 +               sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
  73 +               sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
  74 +                       ARRAY_SIZE(ath9k_2ghz_chantable);
  75 +               sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
  76 +               sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
  77 +                       ARRAY_SIZE(ath9k_legacy_rates);
  78 +       }
  79
  80         if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
  81                 sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
  82 @@ -1886,8 +1888,9 @@ void ath_set_hw_capab(struct ath_softc *
  83
  84         hw->rate_control_algorithm = "ath9k_rate_control";
  85
  86 -       hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
  87 -               &sc->sbands[IEEE80211_BAND_2GHZ];
  88 +       if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes))
  89 +               hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
  90 +                       &sc->sbands[IEEE80211_BAND_2GHZ];
  91         if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
  92                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
  93                         &sc->sbands[IEEE80211_BAND_5GHZ];
  94 @@ -1926,9 +1929,12 @@ int ath_init_device(u16 devid, struct at
  95         reg = &common->regulatory;
  96
  97         if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
  98 -               setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
  99 +               if (test_bit(ATH9K_MODE_11G, ah->caps.wireless_modes))
 100 +                       setup_ht_cap(sc,
 101 +                                    &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
 102                 if (test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes))
 103 -                       setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 104 +                       setup_ht_cap(sc,
 105 +                                    &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 106         }
 107
 108         /* initialize tx/rx engine */