rt2x00: configure different txdesc parameters for non HT channel

This is needed when we are concted to non 11n AP.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 24 insertions, 8 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 471f87cab4ab..8de9bfc4e51a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -692,6 +692,7 @@ enum rt2x00_state_flags {
          */
         CONFIG_CHANNEL_HT40,
         CONFIG_POWERSAVING,
+        CONFIG_HT_DISABLED,
 
         /*
          * Mark we currently are sequentially reading TX_STA_FIFO register
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 293676bfa571..e7361d913e8e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -217,6 +217,11 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
         libconf.conf = conf;
 
         if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) {
+                if (!conf_is_ht(conf))
+                        set_bit(CONFIG_HT_DISABLED, &rt2x00dev->flags);
+                else
+                        clear_bit(CONFIG_HT_DISABLED, &rt2x00dev->flags);
+
                 if (conf_is_ht40(conf)) {
                         set_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
                         hw_value = rt2x00ht_center_channel(rt2x00dev, conf);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 9b1b2b7a7807..acd013353cc7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -320,14 +320,6 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
                 txdesc->u.ht.wcid = sta_priv->wcid;
         }
 
-        txdesc->u.ht.ba_size = 7;       /* FIXME: What value is needed? */
-
-        /*
-         * Only one STBC stream is supported for now.
-         */
-        if (tx_info->flags & IEEE80211_TX_CTL_STBC)
-                txdesc->u.ht.stbc = 1;
-
         /*
          * If IEEE80211_TX_RC_MCS is set txrate->idx just contains the
          * mcs rate to be used
@@ -351,6 +343,24 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
                         txdesc->u.ht.mcs |= 0x08;
         }
 
+        if (test_bit(CONFIG_HT_DISABLED, &rt2x00dev->flags)) {
+                if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
+                        txdesc->u.ht.txop = TXOP_SIFS;
+                else
+                        txdesc->u.ht.txop = TXOP_BACKOFF;
+
+                /* Left zero on all other settings. */
+                return;
+        }
+
+        txdesc->u.ht.ba_size = 7;       /* FIXME: What value is needed? */
+
+        /*
+         * Only one STBC stream is supported for now.
+         */
+        if (tx_info->flags & IEEE80211_TX_CTL_STBC)
+                txdesc->u.ht.stbc = 1;
+
         /*
          * This frame is eligible for an AMPDU, however, don't aggregate
          * frames that are intended to probe a specific tx rate.