disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/net/wireless/ath/ath9k/ar9002_calib.c
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..
@@ -19,6 +19,8 @@
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 #include "ar9002_phy.h"
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20
 
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 #define AR9285_CLCAL_REDO_THRESH    1
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+/* AGC & I/Q calibrations time limit, ms */
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+#define AR9002_CAL_MAX_TIME		30000
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24
 
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 enum ar9002_cal_types {
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 	ADC_GAIN_CAL = BIT(0),
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@@ -37,9 +39,8 @@
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 		break;
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 	case ADC_GAIN_CAL:
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 	case ADC_DC_CAL:
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-		/* Run ADC Gain Cal for non-CCK & non 2GHz-HT20 only */
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-		if (!((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
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-		      IS_CHAN_HT20(chan)))
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+		/* Run even/odd ADCs calibrations for HT40 channels only */
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+		if (IS_CHAN_HT40(chan))
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 			supported = true;
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 		break;
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 	}
..
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@@ -105,6 +106,14 @@
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 			} else {
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 				ar9002_hw_setup_calibration(ah, currCal);
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 			}
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+		} else if (time_after(jiffies, ah->cal_start_time +
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+				      msecs_to_jiffies(AR9002_CAL_MAX_TIME))) {
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+			REG_CLR_BIT(ah, AR_PHY_TIMING_CTRL4(0),
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+				    AR_PHY_TIMING_CTRL4_DO_CAL);
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+			ath_dbg(ath9k_hw_common(ah), CALIBRATE,
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+				"calibration timeout\n");
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+			currCal->calState = CAL_WAITING;	/* Try later */
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+			iscaldone = true;
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 		}
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 	} else if (!(caldata->CalValid & currCal->calData->calType)) {
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 		ath9k_hw_reset_calibration(ah, currCal);
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@@ -664,8 +673,13 @@
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 	int ret;
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 	nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
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-	if (ah->caldata)
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+	if (ah->caldata) {
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 		nfcal_pending = test_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
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+		if (longcal)		/* Remember to not miss */
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+			set_bit(LONGCAL_PENDING, &ah->caldata->cal_flags);
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+		else if (test_bit(LONGCAL_PENDING, &ah->caldata->cal_flags))
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+			longcal = true;	/* Respin a previous one */
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+	}
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 	percal_pending = (currCal &&
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 			  (currCal->calState == CAL_RUNNING ||
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@@ -675,9 +689,24 @@
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 		if (!ar9002_hw_per_calibration(ah, chan, rxchainmask, currCal))
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 			return 0;
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-		ah->cal_list_curr = currCal = currCal->calNext;
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-		if (currCal->calState == CAL_WAITING)
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-			ath9k_hw_reset_calibration(ah, currCal);
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+		/* Looking for next waiting calibration if any */
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+		for (currCal = currCal->calNext; currCal != ah->cal_list_curr;
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+		     currCal = currCal->calNext) {
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+			if (currCal->calState == CAL_WAITING)
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+				break;
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+		}
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+		if (currCal->calState == CAL_WAITING) {
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+			percal_pending = true;
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+			ah->cal_list_curr = currCal;
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+		} else {
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+			percal_pending = false;
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+			ah->cal_list_curr = ah->cal_list;
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+		}
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+	}
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+
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+	/* Do not start a next calibration if the longcal is in action */
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+	if (percal_pending && !nfcal && !longcal) {
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+		ath9k_hw_reset_calibration(ah, currCal);
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710
 
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 		return 0;
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 	}
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@@ -701,6 +730,9 @@
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 		}
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731
 
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 		if (longcal) {
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+			if (ah->caldata)
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+				clear_bit(LONGCAL_PENDING,
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+					  &ah->caldata->cal_flags);
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 			ath9k_hw_start_nfcal(ah, false);
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 			/* Do periodic PAOffset Cal */
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 			ar9002_hw_pa_cal(ah, false);
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@@ -857,9 +889,6 @@
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 	ar9002_hw_pa_cal(ah, true);
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 	ath9k_hw_loadnf(ah, chan);
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 	ath9k_hw_start_nfcal(ah, true);
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-
861
-	if (ah->caldata)
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-		set_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
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892
 
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 	ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
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