package/mac80211/patches/540-ath9k_channelbw_debugfs.patch

   1 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
   2 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
   3 @@ -586,6 +586,7 @@ 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 @@ -1281,6 +1281,9 @@ 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         return 0;
  22  }
  23 --- a/drivers/net/wireless/ath/ath9k/main.c
  24 +++ b/drivers/net/wireless/ath/ath9k/main.c
  25 @@ -226,6 +226,7 @@ static int ath_set_channel(struct ath_so
  26         bool fastcc = true, stopped;
  27         struct ieee80211_channel *channel = hw->conf.channel;
  28         struct ath9k_hw_cal_data *caldata = NULL;
  29 +       u32 oldflags;
  30         int r;
  31
  32         if (sc->sc_flags & SC_OP_INVALID)
  33 @@ -268,6 +269,24 @@ static int ath_set_channel(struct ath_so
  34         if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL))
  35                 fastcc = false;
  36
  37 +       oldflags = hchan->channelFlags;
  38 +       switch (sc->chan_bw) {
  39 +       case 5:
  40 +               hchan->channelFlags &= ~CHANNEL_HALF;
  41 +               hchan->channelFlags |= CHANNEL_QUARTER;
  42 +               break;
  43 +       case 10:
  44 +               hchan->channelFlags &= ~CHANNEL_QUARTER;
  45 +               hchan->channelFlags |= CHANNEL_HALF;
  46 +               break;
  47 +       default:
  48 +               hchan->channelFlags &= ~(CHANNEL_HALF | CHANNEL_QUARTER);
  49 +               break;
  50 +       }
  51 +
  52 +       if (oldflags != hchan->channelFlags)
  53 +               fastcc = false;
  54 +
  55         if (!(sc->sc_flags & SC_OP_OFFCHANNEL))
  56                 caldata = &sc->caldata;
  57