ath9k_htc: Add set_bitrate_mask() callback

This callback is used to set the minimum rate for management
frames.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index c8577d5..e9746e8 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1659,6 +1659,55 @@ static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
        mutex_unlock(&priv->mutex);
 }
 
+/*
+ * Currently, this is used only for selecting the minimum rate
+ * for management frames, rate selection for data frames remain
+ * unaffected.
+ */
+static int ath9k_htc_set_bitrate_mask(struct ieee80211_hw *hw,
+                                     struct ieee80211_vif *vif,
+                                     const struct cfg80211_bitrate_mask *mask)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_rate_mask tmask;
+       struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
+       int ret = 0;
+       u8 cmd_rsp;
+
+       memset(&tmask, 0, sizeof(struct ath9k_htc_target_rate_mask));
+
+       tmask.vif_index = avp->index;
+       tmask.band = IEEE80211_BAND_2GHZ;
+       tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_2GHZ].legacy);
+
+       WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
+       if (ret) {
+               ath_err(common,
+                       "Unable to set 2G rate mask for "
+                       "interface at idx: %d\n", avp->index);
+               goto out;
+       }
+
+       tmask.band = IEEE80211_BAND_5GHZ;
+       tmask.mask = cpu_to_be32(mask->control[IEEE80211_BAND_5GHZ].legacy);
+
+       WMI_CMD_BUF(WMI_BITRATE_MASK_CMDID, &tmask);
+       if (ret) {
+               ath_err(common,
+                       "Unable to set 5G rate mask for "
+                       "interface at idx: %d\n", avp->index);
+               goto out;
+       }
+
+       ath_dbg(common, ATH_DBG_CONFIG,
+               "Set bitrate masks: 0x%x, 0x%x\n",
+               mask->control[IEEE80211_BAND_2GHZ].legacy,
+               mask->control[IEEE80211_BAND_5GHZ].legacy);
+out:
+       return ret;
+}
+
 struct ieee80211_ops ath9k_htc_ops = {
        .tx                 = ath9k_htc_tx,
        .start              = ath9k_htc_start,
@@ -1681,4 +1730,5 @@ struct ieee80211_ops ath9k_htc_ops = {
        .set_rts_threshold  = ath9k_htc_set_rts_threshold,
        .rfkill_poll        = ath9k_htc_rfkill_poll_state,
        .set_coverage_class = ath9k_htc_set_coverage_class,
+       .set_bitrate_mask   = ath9k_htc_set_bitrate_mask,
 };