ath9k: add a few calibration related fixes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43058 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/kernel/mac80211/patches/330-ath9k-restart-hardware-after-noise-floor-calibration.patch

@@ -164,7 +164,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
  	void (*set_txdesc)(struct ath_hw *ah, void *ds,
 --- a/drivers/net/wireless/ath/ath9k/link.c
 +++ b/drivers/net/wireless/ath/ath9k/link.c
-@@ -371,9 +371,14 @@ void ath_ani_calibrate(unsigned long dat
+@@ -371,9 +371,15 @@ void ath_ani_calibrate(unsigned long dat
  
  	/* Perform calibration if necessary */
  	if (longcal || shortcal) {
@@ -174,6 +174,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
 +		int ret = ath9k_hw_calibrate(ah, ah->curchan, ah->rxchainmask,
 +					     longcal);
 +		if (ret < 0) {
++			common->ani.caldone = 0;
 +			ath9k_queue_reset(sc, RESET_TYPE_CALIBRATION);
 +			return;
 +		}

package/kernel/mac80211/patches/331-ath9k_hw-do-not-run-NF-and-periodic-calibration-at-t.patch

@@ -11,18 +11,23 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
 
 --- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
 +++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
-@@ -660,7 +660,6 @@ static void ar9002_hw_olc_temp_compensat
+@@ -660,27 +660,26 @@ static void ar9002_hw_olc_temp_compensat
  static int ar9002_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
  			       u8 rxchainmask, bool longcal)
  {
 -	bool iscaldone = true;
  	struct ath9k_cal_list *currCal = ah->cal_list_curr;
- 	bool nfcal, nfcal_pending = false;
+-	bool nfcal, nfcal_pending = false;
++	bool nfcal, nfcal_pending = false, percal_pending;
  	int ret;
-@@ -672,15 +671,13 @@ static int ar9002_hw_calibrate(struct at
- 	if (currCal && !nfcal &&
- 	    (currCal->calState == CAL_RUNNING ||
- 	     currCal->calState == CAL_WAITING)) {
+ 
+ 	nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
+ 	if (ah->caldata)
+ 		nfcal_pending = test_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
+ 
+-	if (currCal && !nfcal &&
+-	    (currCal->calState == CAL_RUNNING ||
+-	     currCal->calState == CAL_WAITING)) {
 -		iscaldone = ar9002_hw_per_calibration(ah, chan,
 -						      rxchainmask, currCal);
 -		if (iscaldone) {
@@ -32,6 +37,11 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
 -				iscaldone = false;
 -				ath9k_hw_reset_calibration(ah, currCal);
 -			}
++	percal_pending = (currCal &&
++			  (currCal->calState == CAL_RUNNING ||
++			   currCal->calState == CAL_WAITING));
++
++	if (percal_pending && !nfcal) {
 +		if (!ar9002_hw_per_calibration(ah, chan, rxchainmask, currCal))
 +			return 0;
 +
@@ -42,12 +52,12 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
  		}
  	}
  
-@@ -710,7 +707,7 @@ static int ar9002_hw_calibrate(struct at
+@@ -710,7 +709,7 @@ static int ar9002_hw_calibrate(struct at
  		}
  	}
  
 -	return iscaldone;
-+	return 1;
++	return !percal_pending;
  }
  
  /* Carrier leakage Calibration fix */

package/kernel/mac80211/patches/332-ath9k_hw-start-initial-NF-calibration-after-PA-calib.patch

@@ -10,10 +10,11 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
 
 --- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
 +++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
-@@ -854,6 +854,7 @@ static bool ar9002_hw_init_cal(struct at
+@@ -856,6 +856,8 @@ static bool ar9002_hw_init_cal(struct at
  
  	/* Do PA Calibration */
  	ar9002_hw_pa_cal(ah, true);
++	ath9k_hw_loadnf(ah, chan);
 +	ath9k_hw_start_nfcal(ah, true);
  
  	if (ah->caldata)