ath9k: Add btcoex profile management support for AR9462

AR9462 chips have the capabilities to provoide bluetooth
profile information. For non-AR9462 btcoex chips, the BT
priority traffic was identified by periodically polling
the respective registers and updated dutycycle, stomptype,
etc. As AR9462 chip offers the BT profile informations,
let us make use of that to update aggregation limit,
dutycycle, stomptype and wieghtages.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 03b0a651a591..55d077e7135d 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -601,6 +601,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
         struct sk_buff *skb;
         struct ieee80211_tx_info *tx_info;
         struct ieee80211_tx_rate *rates;
+        struct ath_mci_profile *mci = &sc->btcoex.mci;
         u32 max_4ms_framelen, frmlen;
         u16 aggr_limit, legacy = 0;
         int i;
@@ -645,7 +646,9 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
         if (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE || legacy)
                 return 0;
 
-        if (sc->sc_flags & SC_OP_BT_PRIORITY_DETECTED)
+        if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit)
+                aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4;
+        else if (sc->sc_flags & SC_OP_BT_PRIORITY_DETECTED)
                 aggr_limit = min((max_4ms_framelen * 3) / 8,
                                  (u32)ATH_AMPDU_LIMIT_MAX);
         else