ath9k: Report HT rates in RX status

[pandora-kernel.git] / drivers / net / wireless / ath9k / recv.c

diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index f2327d8..cc160fe 100644 (file)
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -111,33 +111,6 @@ static struct sk_buff *ath_rxbuf_alloc(struct ath_softc *sc, u32 len)
        return skb;
 }
 
-static int ath_rate2idx(struct ath_softc *sc, int rate)
-{
-       int i = 0, cur_band, n_rates;
-       struct ieee80211_hw *hw = sc->hw;
-
-       cur_band = hw->conf.channel->band;
-       n_rates = sc->sbands[cur_band].n_bitrates;
-
-       for (i = 0; i < n_rates; i++) {
-               if (sc->sbands[cur_band].bitrates[i].bitrate == rate)
-                       break;
-       }
-
-       /*
-        * NB:mac80211 validates rx rate index against the supported legacy rate
-        * index only (should be done against ht rates also), return the highest
-        * legacy rate index for rx rate which does not match any one of the
-        * supported basic and extended rates to make mac80211 happy.
-        * The following hack will be cleaned up once the issue with
-        * the rx rate index validation in mac80211 is fixed.
-        */
-       if (i == n_rates)
-               return n_rates - 1;
-
-       return i;
-}
-
 /*
  * For Decrypt or Demic errors, we only mark packet status here and always push
  * up the frame up to let mac80211 handle the actual error case, be it no
@@ -147,9 +120,7 @@ static int ath_rx_prepare(struct sk_buff *skb, struct ath_desc *ds,
                          struct ieee80211_rx_status *rx_status, bool *decrypt_error,
                          struct ath_softc *sc)
 {
-       struct ath_rate_table *rate_table = sc->cur_rate_table;
        struct ieee80211_hdr *hdr;
-       int ratekbps, rix;
        u8 ratecode;
        __le16 fc;
 
@@ -204,15 +175,36 @@ static int ath_rx_prepare(struct sk_buff *skb, struct ath_desc *ds,
        }
 
        ratecode = ds->ds_rxstat.rs_rate;
-       rix = rate_table->rateCodeToIndex[ratecode];
-       ratekbps = rate_table->info[rix].ratekbps;
 
-       /* HT rate */
        if (ratecode & 0x80) {
+               /* HT rate */
+               rx_status->flag |= RX_FLAG_HT;
                if (ds->ds_rxstat.rs_flags & ATH9K_RX_2040)
-                       ratekbps = (ratekbps * 27) / 13;
+                       rx_status->flag |= RX_FLAG_40MHZ;
                if (ds->ds_rxstat.rs_flags & ATH9K_RX_GI)
-                       ratekbps = (ratekbps * 10) / 9;
+                       rx_status->flag |= RX_FLAG_SHORT_GI;
+               rx_status->rate_idx = ratecode & 0x7f;
+       } else {
+               int i = 0, cur_band, n_rates;
+               struct ieee80211_hw *hw = sc->hw;
+
+               cur_band = hw->conf.channel->band;
+               n_rates = sc->sbands[cur_band].n_bitrates;
+
+               for (i = 0; i < n_rates; i++) {
+                       if (sc->sbands[cur_band].bitrates[i].hw_value ==
+                           ratecode) {
+                               rx_status->rate_idx = i;
+                               break;
+                       }
+
+                       if (sc->sbands[cur_band].bitrates[i].hw_value_short ==
+                           ratecode) {
+                               rx_status->rate_idx = i;
+                               rx_status->flag |= RX_FLAG_SHORTPRE;
+                               break;
+                       }
+               }
        }
 
        rx_status->mactime = ath_extend_tsf(sc, ds->ds_rxstat.rs_tstamp);
@@ -220,7 +212,6 @@ static int ath_rx_prepare(struct sk_buff *skb, struct ath_desc *ds,
        rx_status->freq =  sc->hw->conf.channel->center_freq;
        rx_status->noise = sc->sc_ani.sc_noise_floor;
        rx_status->signal = rx_status->noise + ds->ds_rxstat.rs_rssi;
-       rx_status->rate_idx = ath_rate2idx(sc, (ratekbps / 100));
        rx_status->antenna = ds->ds_rxstat.rs_antenna;
 
        /* at 45 you will be able to use MCS 15 reliably. A more elaborate