27 #include "ar5212/ar5212.h"	/* for NF cal related declarations */
41 static void ar5416SanitizeNF(struct ath_hal *ah, int16_t *nf);
264 	 * Do NF calibration after DC offset and other CALs.  in ar5416InitCal()
493 	/* Do NF cal only at longer intervals */  in ar5416PerCalibrationN()
504 		 * Get the value from the previous NF cal  in ar5416PerCalibrationN()
509 			/* NF calibration result isn't valid */  in ar5416PerCalibrationN()
510 			HALDEBUG(ah, HAL_DEBUG_UNMASKABLE, "%s: NF calibration"  in ar5416PerCalibrationN()
515 			 * NF calibration result is valid.  in ar5416PerCalibrationN()
517 			 * Load the NF from history buffer of the current channel.  in ar5416PerCalibrationN()
518 			 * NF is slow time-variant, so it is OK to use a  in ar5416PerCalibrationN()
523 			/* start NF calibration, without updating BB NF register*/  in ar5416PerCalibrationN()
604 	 * Force NF calibration for all chains.  in ar5416LoadNF()
617 	 * Write filtered NF values into maxCCApwr register parameter  in ar5416LoadNF()
645 	/* Load software filtered NF value into baseband internal minCCApwr variable. */  in ar5416LoadNF()
658 		 * here, the baseband nf cal will just be capped by our present  in ar5416LoadNF()
662 		    "nf to load: AR_PHY_AGC_CONTROL=0x%x\n",  in ar5416LoadNF()
750 ar5416SanitizeNF(struct ath_hal *ah, int16_t *nf)  in ar5416SanitizeNF()  argument
762                 if (!nf[i])  in ar5416SanitizeNF()
765                 if (nf[i] > limit->max) {  in ar5416SanitizeNF()
767                                   "NF[%d] (%d) > MAX (%d), correcting to MAX\n",  in ar5416SanitizeNF()
768                                   i, nf[i], limit->max);  in ar5416SanitizeNF()
769                         nf[i] = limit->max;  in ar5416SanitizeNF()
770                 } else if (nf[i] < limit->min) {  in ar5416SanitizeNF()
772                                   "NF[%d] (%d) < MIN (%d), correcting to NOM\n",  in ar5416SanitizeNF()
773                                   i, nf[i], limit->min);  in ar5416SanitizeNF()
774                         nf[i] = limit->nominal;  in ar5416SanitizeNF()
780  * Read the NF and check it against the noise floor threshold
782  * Return 0 if the NF calibration hadn't finished, 0 if it was
783  * invalid, or > 0 for a valid NF reading.
788 	int16_t nf, nfThresh;  in ar5416GetNf()  local
794 		    "%s: NF didn't complete in calibration window\n", __func__);  in ar5416GetNf()
795 		nf = 0;  in ar5416GetNf()
796 		retval = -1;	/* NF didn't finish */  in ar5416GetNf()
798 		/* Finished NF cal, check against threshold */  in ar5416GetNf()
804 		nf = nfarray[0];  in ar5416GetNf()
807 			if (nf > nfThresh) {  in ar5416GetNf()
811 				    nf, nfThresh);  in ar5416GetNf()
818 				nf = 0;  in ar5416GetNf()
822 			nf = 0;  in ar5416GetNf()
833 		ichan->rawNoiseFloor = nf;  in ar5416GetNf()
834 		retval = nf;  in ar5416GetNf()