ath9k: use hw->conf on ath_setcurmode()

We don't need to use our own mode for setting the
the routine tries to do, in fact lets remove ath_chan2mode() now as
we can simply use the currently set band and the HT configuration
provided by mac80211 through the ieee80211_conf. This works on
changing channels as well as the internal ath9k_channel we use is
based on the ieee80211_channel in the config.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 40 insertions, 32 deletions

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 727f067aca4..699d248efc4 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -59,41 +59,47 @@ static void bus_read_cachesize(struct ath_softc *sc, int *csz)
                 *csz = DEFAULT_CACHELINE >> 2;   /* Use the default size */
 }
 
-static void ath_setcurmode(struct ath_softc *sc, enum wireless_mode mode)
+static void ath_setcurmode(struct ath_softc *sc, struct ieee80211_conf *conf)
 {
-        sc->cur_rate_table = sc->hw_rate_table[mode];
         /*
          * All protection frames are transmited at 2Mb/s for
          * 11g, otherwise at 1Mb/s.
          * XXX select protection rate index from rate table.
          */
-        sc->sc_protrix = (mode == ATH9K_MODE_11G ? 1 : 0);
-}
-
-static enum wireless_mode ath_chan2mode(struct ath9k_channel *chan)
-{
-        if (chan->chanmode == CHANNEL_A)
-                return ATH9K_MODE_11A;
-        else if (chan->chanmode == CHANNEL_G)
-                return ATH9K_MODE_11G;
-        else if (chan->chanmode == CHANNEL_B)
-                return ATH9K_MODE_11B;
-        else if (chan->chanmode == CHANNEL_A_HT20)
-                return ATH9K_MODE_11NA_HT20;
-        else if (chan->chanmode == CHANNEL_G_HT20)
-                return ATH9K_MODE_11NG_HT20;
-        else if (chan->chanmode == CHANNEL_A_HT40PLUS)
-                return ATH9K_MODE_11NA_HT40PLUS;
-        else if (chan->chanmode == CHANNEL_A_HT40MINUS)
-                return ATH9K_MODE_11NA_HT40MINUS;
-        else if (chan->chanmode == CHANNEL_G_HT40PLUS)
-                return ATH9K_MODE_11NG_HT40PLUS;
-        else if (chan->chanmode == CHANNEL_G_HT40MINUS)
-                return ATH9K_MODE_11NG_HT40MINUS;
-
-        WARN_ON(1); /* should not get here */
-
-        return ATH9K_MODE_11B;
+        sc->sc_protrix = 0;
+        switch (conf->channel->band) {
+        case IEEE80211_BAND_2GHZ:
+                if (conf_is_ht20(conf))
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11NG_HT20];
+                else if (conf_is_ht40_minus(conf))
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS];
+                else if (conf_is_ht40_plus(conf))
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS];
+                else {
+                        sc->sc_protrix = 1;
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11G];
+                }
+                break;
+        case IEEE80211_BAND_5GHZ:
+                if (conf_is_ht20(conf))
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11NA_HT20];
+                else if (conf_is_ht40_minus(conf))
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS];
+                else if (conf_is_ht40_plus(conf))
+                        sc->cur_rate_table =
+                          sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS];
+                else
+                        sc->cur_rate_table = sc->hw_rate_table[ATH9K_MODE_11A];
+                break;
+        default:
+                break;
+        }
 }
 
 static void ath_update_txpow(struct ath_softc *sc)
@@ -258,6 +264,7 @@ static int ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan)
 {
         struct ath_hal *ah = sc->sc_ah;
         bool fastcc = true, stopped;
+        struct ieee80211_hw *hw = sc->hw;
 
         if (sc->sc_flags & SC_OP_INVALID)
                 return -EIO;
@@ -316,7 +323,7 @@ static int ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan)
                         return -EIO;
                 }
 
-                ath_setcurmode(sc, ath_chan2mode(hchan));
+                ath_setcurmode(sc, &hw->conf);
                 ath_update_txpow(sc);
                 ath9k_hw_set_interrupts(ah, sc->sc_imask);
         }
@@ -1619,6 +1626,7 @@ detach:
 int ath_reset(struct ath_softc *sc, bool retry_tx)
 {
         struct ath_hal *ah = sc->sc_ah;
+        struct ieee80211_hw *hw = sc->hw;
         int status;
         int error = 0;
 
@@ -1646,7 +1654,7 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
          * that changes the channel so update any state that
          * might change as a result.
          */
-        ath_setcurmode(sc, ath_chan2mode(sc->sc_ah->ah_curchan));
+        ath_setcurmode(sc, &hw->conf);
 
         ath_update_txpow(sc);
 
@@ -1943,7 +1951,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
             !sc->sc_config.swBeaconProcess)
                 sc->sc_imask |= ATH9K_INT_TIM;
 
-        ath_setcurmode(sc, ath_chan2mode(init_channel));
+        ath_setcurmode(sc, &hw->conf);
 
         sc->sc_flags &= ~SC_OP_INVALID;