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>

1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index c8577d5cd0f7..e9746e8ff8dd 100644
--- 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,
 };