ath9k: Add debug messages to track PAPRD failures

Add few debug messages for some of the possible scenarios
where we can detect PAPRD failures. this will help us to be
sure that we had really enabled PAPRD

Cc: susinder@qca.qualcomm.com
Cc: senthilb@qca.qualcomm.com
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 7f945333e2d80bae3438c350a4ed9e1a6c3d5ef3..e0e0e86578b44d37fc9edc390be691c2c68eabf1 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -360,7 +360,7 @@ static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int
        txctl.paprd = BIT(chain);
 
        if (ath_tx_start(hw, skb, &txctl) != 0) {
-               ath_dbg(common, ATH_DBG_XMIT, "PAPRD TX failed\n");
+               ath_dbg(common, ATH_DBG_CALIBRATE, "PAPRD TX failed\n");
                dev_kfree_skb_any(skb);
                return false;
        }
@@ -369,7 +369,7 @@ static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int
                        msecs_to_jiffies(ATH_PAPRD_TIMEOUT));
 
        if (!time_left)
-               ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CALIBRATE,
+               ath_dbg(common, ATH_DBG_CALIBRATE,
                        "Timeout waiting for paprd training on TX chain %d\n",
                        chain);
 
@@ -431,11 +431,18 @@ void ath_paprd_calibrate(struct work_struct *work)
                if (!ath_paprd_send_frame(sc, skb, chain))
                        goto fail_paprd;
 
-               if (!ar9003_paprd_is_done(ah))
+               if (!ar9003_paprd_is_done(ah)) {
+                       ath_dbg(common, ATH_DBG_CALIBRATE,
+                               "PAPRD not yet done on chain %d\n", chain);
                        break;
+               }
 
-               if (ar9003_paprd_create_curve(ah, caldata, chain) != 0)
+               if (ar9003_paprd_create_curve(ah, caldata, chain)) {
+                       ath_dbg(common, ATH_DBG_CALIBRATE,
+                               "PAPRD create curve failed on chain %d\n",
+                                                                  chain);
                        break;
+               }
 
                chain_ok = 1;
        }