ath9k_hw: move the cycle counter tracking to ath

Instead of keeping track of wraparound, clear the counters on every
access and keep separate deltas for ANI and later survey use.
Also moves the function for calculating the 'listen time' for ANI

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 74c2dc8a8b8a..360c6f5e843a 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -399,6 +399,7 @@ void ath_ani_calibrate(unsigned long data)
         bool aniflag = false;
         unsigned int timestamp = jiffies_to_msecs(jiffies);
         u32 cal_interval, short_cal_interval, long_cal_interval;
+        unsigned long flags;
 
         if (ah->caldata && ah->caldata->nfcal_interference)
                 long_cal_interval = ATH_LONG_CALINTERVAL_INT;
@@ -449,8 +450,11 @@ void ath_ani_calibrate(unsigned long data)
         /* Skip all processing if there's nothing to do. */
         if (longcal || shortcal || aniflag) {
                 /* Call ANI routine if necessary */
-                if (aniflag)
+                if (aniflag) {
+                        spin_lock_irqsave(&common->cc_lock, flags);
                         ath9k_hw_ani_monitor(ah, ah->curchan);
+                        spin_unlock_irqrestore(&common->cc_lock, flags);
+                }
 
                 /* Perform calibration if necessary */
                 if (longcal || shortcal) {
@@ -635,6 +639,7 @@ irqreturn_t ath_isr(int irq, void *dev)
 
         struct ath_softc *sc = dev;
         struct ath_hw *ah = sc->sc_ah;
+        struct ath_common *common = ath9k_hw_common(ah);
         enum ath9k_int status;
         bool sched = false;
 
@@ -684,7 +689,12 @@ irqreturn_t ath_isr(int irq, void *dev)
 
         if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
             (status & ATH9K_INT_BB_WATCHDOG)) {
+
+                spin_lock(&common->cc_lock);
+                ath_hw_cycle_counters_update(common);
                 ar9003_hw_bb_watchdog_dbg_info(ah);
+                spin_unlock(&common->cc_lock);
+
                 goto chip_reset;
         }