package/mac80211/patches/513-ath9k_channelbw_debugfs.patch

   1 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
   2 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
   3 @@ -585,6 +585,7 @@ struct ath_softc {
   4         struct ieee80211_hw *hw;
   5         struct device *dev;
   6
   7 +       u32 chan_bw;
   8         int chan_idx;
   9         int chan_is_ht;
  10         struct survey_info *cur_survey;
  11 --- a/drivers/net/wireless/ath/ath9k/debug.c
  12 +++ b/drivers/net/wireless/ath/ath9k/debug.c
  13 @@ -1693,6 +1693,9 @@ int ath9k_init_debug(struct ath_hw *ah)
  14         debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
  15                             &fops_eeprom);
  16
  17 +       debugfs_create_u32("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
  18 +                          &sc->chan_bw);
  19 +
  20         sc->debug.regidx = 0;
  21         memset(&sc->debug.bb_mac_samp, 0, sizeof(sc->debug.bb_mac_samp));
  22         sc->debug.sampidx = 0;
  23 --- a/drivers/net/wireless/ath/ath9k/main.c
  24 +++ b/drivers/net/wireless/ath/ath9k/main.c
  25 @@ -1636,9 +1636,10 @@ static int ath9k_config(struct ieee80211
  26
  27         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
  28                 struct ieee80211_channel *curchan = hw->conf.channel;
  29 -               struct ath9k_channel old_chan;
  30 +               struct ath9k_channel old_chan, *hchan;
  31                 int pos = curchan->hw_value;
  32                 int old_pos = -1;
  33 +               u32 oldflags;
  34                 unsigned long flags;
  35
  36                 if (ah->curchan)
  37 @@ -1691,7 +1692,23 @@ static int ath9k_config(struct ieee80211
  38                         memset(&sc->survey[pos], 0, sizeof(struct survey_info));
  39                 }
  40
  41 -               if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
  42 +               hchan = &sc->sc_ah->channels[pos];
  43 +               oldflags = hchan->channelFlags;
  44 +               switch (sc->chan_bw) {
  45 +               case 5:
  46 +                       hchan->channelFlags &= ~CHANNEL_HALF;
  47 +                       hchan->channelFlags |= CHANNEL_QUARTER;
  48 +                       break;
  49 +               case 10:
  50 +                       hchan->channelFlags &= ~CHANNEL_QUARTER;
  51 +                       hchan->channelFlags |= CHANNEL_HALF;
  52 +                       break;
  53 +               default:
  54 +                       hchan->channelFlags &= ~(CHANNEL_HALF | CHANNEL_QUARTER);
  55 +                       break;
  56 +               }
  57 +
  58 +               if (ath_set_channel(sc, hw, hchan) < 0) {
  59                         ath_err(common, "Unable to set channel\n");
  60                         mutex_unlock(&sc->mutex);
  61                         return -EINVAL;
  62 --- a/drivers/net/wireless/ath/ath9k/hw.c
  63 +++ b/drivers/net/wireless/ath/ath9k/hw.c
  64 @@ -1509,6 +1509,10 @@ int ath9k_hw_reset(struct ath_hw *ah, st
  65             (AR_SREV_9300_20_OR_LATER(ah) && IS_CHAN_5GHZ(chan)))
  66                 bChannelChange = false;
  67
  68 +       if (!ah->curchan || ((ah->curchan->channelFlags ^ chan->channelFlags) &
  69 +           (CHANNEL_HALF | CHANNEL_QUARTER)))
  70 +               bChannelChange = false;
  71 +
  72         if (bChannelChange &&
  73             (ah->chip_fullsleep != true) &&
  74             (ah->curchan != NULL) &&