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-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_eeprom.c63
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_eeprom.h10
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.h2
3 files changed, 67 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 23bb67717469..de2e5031781a 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -4689,7 +4689,8 @@ static int ar9003_hw_cal_pier_get(struct ath_hw *ah,
int ichain,
int *pfrequency,
int *pcorrection,
- int *ptemperature, int *pvoltage)
+ int *ptemperature, int *pvoltage,
+ int *pnf_cal, int *pnf_power)
{
u8 *pCalPier;
struct ar9300_cal_data_per_freq_op_loop *pCalPierStruct;
@@ -4731,6 +4732,10 @@ static int ar9003_hw_cal_pier_get(struct ath_hw *ah,
*pcorrection = pCalPierStruct->refPower;
*ptemperature = pCalPierStruct->tempMeas;
*pvoltage = pCalPierStruct->voltMeas;
+ *pnf_cal = pCalPierStruct->rxTempMeas ?
+ N2DBM(pCalPierStruct->rxNoisefloorCal) : 0;
+ *pnf_power = pCalPierStruct->rxTempMeas ?
+ N2DBM(pCalPierStruct->rxNoisefloorPower) : 0;
return 0;
}
@@ -4895,14 +4900,18 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
int mode;
int lfrequency[AR9300_MAX_CHAINS],
lcorrection[AR9300_MAX_CHAINS],
- ltemperature[AR9300_MAX_CHAINS], lvoltage[AR9300_MAX_CHAINS];
+ ltemperature[AR9300_MAX_CHAINS], lvoltage[AR9300_MAX_CHAINS],
+ lnf_cal[AR9300_MAX_CHAINS], lnf_pwr[AR9300_MAX_CHAINS];
int hfrequency[AR9300_MAX_CHAINS],
hcorrection[AR9300_MAX_CHAINS],
- htemperature[AR9300_MAX_CHAINS], hvoltage[AR9300_MAX_CHAINS];
+ htemperature[AR9300_MAX_CHAINS], hvoltage[AR9300_MAX_CHAINS],
+ hnf_cal[AR9300_MAX_CHAINS], hnf_pwr[AR9300_MAX_CHAINS];
int fdiff;
int correction[AR9300_MAX_CHAINS],
- voltage[AR9300_MAX_CHAINS], temperature[AR9300_MAX_CHAINS];
- int pfrequency, pcorrection, ptemperature, pvoltage;
+ voltage[AR9300_MAX_CHAINS], temperature[AR9300_MAX_CHAINS],
+ nf_cal[AR9300_MAX_CHAINS], nf_pwr[AR9300_MAX_CHAINS];
+ int pfrequency, pcorrection, ptemperature, pvoltage,
+ pnf_cal, pnf_pwr;
struct ath_common *common = ath9k_hw_common(ah);
mode = (frequency >= 4000);
@@ -4920,7 +4929,8 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
for (ipier = 0; ipier < npier; ipier++) {
if (!ar9003_hw_cal_pier_get(ah, mode, ipier, ichain,
&pfrequency, &pcorrection,
- &ptemperature, &pvoltage)) {
+ &ptemperature, &pvoltage,
+ &pnf_cal, &pnf_pwr)) {
fdiff = frequency - pfrequency;
/*
@@ -4942,6 +4952,8 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
htemperature[ichain] =
ptemperature;
hvoltage[ichain] = pvoltage;
+ hnf_cal[ichain] = pnf_cal;
+ hnf_pwr[ichain] = pnf_pwr;
}
}
if (fdiff >= 0) {
@@ -4958,6 +4970,8 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
ltemperature[ichain] =
ptemperature;
lvoltage[ichain] = pvoltage;
+ lnf_cal[ichain] = pnf_cal;
+ lnf_pwr[ichain] = pnf_pwr;
}
}
}
@@ -4966,15 +4980,20 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
/* interpolate */
for (ichain = 0; ichain < AR9300_MAX_CHAINS; ichain++) {
- ath_dbg(common, EEPROM, "ch=%d f=%d low=%d %d h=%d %d\n",
+ ath_dbg(common, EEPROM,
+ "ch=%d f=%d low=%d %d h=%d %d n=%d %d p=%d %d\n",
ichain, frequency, lfrequency[ichain],
lcorrection[ichain], hfrequency[ichain],
- hcorrection[ichain]);
+ hcorrection[ichain], lnf_cal[ichain],
+ hnf_cal[ichain], lnf_pwr[ichain],
+ hnf_pwr[ichain]);
/* they're the same, so just pick one */
if (hfrequency[ichain] == lfrequency[ichain]) {
correction[ichain] = lcorrection[ichain];
voltage[ichain] = lvoltage[ichain];
temperature[ichain] = ltemperature[ichain];
+ nf_cal[ichain] = lnf_cal[ichain];
+ nf_pwr[ichain] = lnf_pwr[ichain];
}
/* the low frequency is good */
else if (frequency - lfrequency[ichain] < 1000) {
@@ -4998,12 +5017,26 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
hfrequency[ichain],
lvoltage[ichain],
hvoltage[ichain]);
+
+ nf_cal[ichain] = interpolate(frequency,
+ lfrequency[ichain],
+ hfrequency[ichain],
+ lnf_cal[ichain],
+ hnf_cal[ichain]);
+
+ nf_pwr[ichain] = interpolate(frequency,
+ lfrequency[ichain],
+ hfrequency[ichain],
+ lnf_pwr[ichain],
+ hnf_pwr[ichain]);
}
/* only low is good, use it */
else {
correction[ichain] = lcorrection[ichain];
temperature[ichain] = ltemperature[ichain];
voltage[ichain] = lvoltage[ichain];
+ nf_cal[ichain] = lnf_cal[ichain];
+ nf_pwr[ichain] = lnf_pwr[ichain];
}
}
/* only high is good, use it */
@@ -5011,10 +5044,14 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
correction[ichain] = hcorrection[ichain];
temperature[ichain] = htemperature[ichain];
voltage[ichain] = hvoltage[ichain];
+ nf_cal[ichain] = hnf_cal[ichain];
+ nf_pwr[ichain] = hnf_pwr[ichain];
} else { /* nothing is good, presume 0???? */
correction[ichain] = 0;
temperature[ichain] = 0;
voltage[ichain] = 0;
+ nf_cal[ichain] = 0;
+ nf_pwr[ichain] = 0;
}
}
@@ -5025,6 +5062,16 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency)
"for frequency=%d, calibration correction = %d %d %d\n",
frequency, correction[0], correction[1], correction[2]);
+ /* Store calibrated noise floor values */
+ for (ichain = 0; ichain < AR5416_MAX_CHAINS; ichain++)
+ if (mode) {
+ ah->nf_5g.cal[ichain] = nf_cal[ichain];
+ ah->nf_5g.pwr[ichain] = nf_pwr[ichain];
+ } else {
+ ah->nf_2g.cal[ichain] = nf_cal[ichain];
+ ah->nf_2g.pwr[ichain] = nf_pwr[ichain];
+ }
+
return 0;
}
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index bd2269c7de6b..e8fda54acfe3 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -62,6 +62,16 @@
*/
#define AR9300_PWR_TABLE_OFFSET 0
+/* Noise power data definitions
+ * units are: 4 x dBm - NOISE_PWR_DATA_OFFSET
+ * (e.g. -25 = (-25/4 - 90) = -96.25 dBm)
+ * range (for 6 signed bits) is (-32 to 31) + offset => -122dBm to -59dBm
+ * resolution (2 bits) is 0.25dBm
+ */
+#define NOISE_PWR_DATA_OFFSET -90
+#define NOISE_PWR_DBM_2_INT(_p) ((((_p) + 3) >> 2) + NOISE_PWR_DATA_OFFSET)
+#define N2DBM(_p) NOISE_PWR_DBM_2_INT(_p)
+
/* byte addressable */
#define AR9300_EEPROM_SIZE (16*1024)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 0d6c07c77372..9804a24a2dc0 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -754,6 +754,8 @@ struct ath_nf_limits {
s16 max;
s16 min;
s16 nominal;
+ s16 cal[AR5416_MAX_CHAINS];
+ s16 pwr[AR5416_MAX_CHAINS];
};
enum ath_cal_list {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.