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--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -354,6 +354,7 @@ struct ath9k_hw_cal_data {
int8_t qCoff;
int16_t rawNoiseFloor;
bool paprd_done;
+ bool nfcal_pending;
u16 small_signal_gain[AR9300_MAX_CHAINS];
u32 pa_table[AR9300_MAX_CHAINS][PAPRD_TABLE_SZ];
struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS];
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -156,6 +156,9 @@ EXPORT_SYMBOL(ath9k_hw_reset_calvalid);
void ath9k_hw_start_nfcal(struct ath_hw *ah)
{
+ if (ah->caldata)
+ ah->caldata->nfcal_pending = true;
+
REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
AR_PHY_AGC_CONTROL_ENABLE_NF);
REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
@@ -282,8 +285,7 @@ static void ath9k_hw_nf_sanitize(struct
}
}
-int16_t ath9k_hw_getnf(struct ath_hw *ah,
- struct ath9k_channel *chan)
+bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
int16_t nf, nfThresh;
@@ -293,7 +295,7 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah
struct ath9k_hw_cal_data *caldata = ah->caldata;
if (!caldata)
- return ath9k_hw_get_default_nf(ah, chan);
+ return false;
chan->channelFlags &= (~CHANNEL_CW_INT);
if (REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) {
@@ -301,7 +303,7 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah
"NF did not complete in calibration window\n");
nf = 0;
caldata->rawNoiseFloor = nf;
- return caldata->rawNoiseFloor;
+ return false;
} else {
ath9k_hw_do_getnf(ah, nfarray);
ath9k_hw_nf_sanitize(ah, nfarray);
@@ -317,11 +319,10 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah
}
h = caldata->nfCalHist;
-
+ caldata->nfcal_pending = false;
ath9k_hw_update_nfcal_hist_buffer(h, nfarray);
caldata->rawNoiseFloor = h[0].privNF;
-
- return ah->caldata->rawNoiseFloor;
+ return true;
}
void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
@@ -687,8 +687,13 @@ static bool ar9002_hw_calibrate(struct a
{
bool iscaldone = true;
struct ath9k_cal_list *currCal = ah->cal_list_curr;
+ bool nfcal, nfcal_pending = false;
- if (currCal &&
+ nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
+ if (ah->caldata)
+ nfcal_pending = ah->caldata->nfcal_pending;
+
+ if (currCal && !nfcal &&
(currCal->calState == CAL_RUNNING ||
currCal->calState == CAL_WAITING)) {
iscaldone = ar9002_hw_per_calibration(ah, chan,
@@ -704,7 +709,7 @@ static bool ar9002_hw_calibrate(struct a
}
/* Do NF cal only at longer intervals */
- if (longcal) {
+ if (longcal || nfcal_pending) {
/* Do periodic PAOffset Cal */
ar9002_hw_pa_cal(ah, false);
ar9002_hw_olc_temp_compensation(ah);
@@ -713,16 +718,18 @@ static bool ar9002_hw_calibrate(struct a
* Get the value from the previous NF cal and update
* history buffer.
*/
- ath9k_hw_getnf(ah, chan);
-
- /*
- * Load the NF from history buffer of the current channel.
- * NF is slow time-variant, so it is OK to use a historical
- * value.
- */
- ath9k_hw_loadnf(ah, ah->curchan);
+ if (ath9k_hw_getnf(ah, chan)) {
+ /*
+ * Load the NF from history buffer of the current
+ * channel.
+ * NF is slow time-variant, so it is OK to use a
+ * historical value.
+ */
+ ath9k_hw_loadnf(ah, ah->curchan);
+ }
- ath9k_hw_start_nfcal(ah);
+ if (longcal)
+ ath9k_hw_start_nfcal(ah);
}
return iscaldone;
@@ -873,6 +880,9 @@ static bool ar9002_hw_init_cal(struct at
REG_WRITE(ah, AR_PHY_AGC_CONTROL,
REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_NF);
+ if (ah->caldata)
+ ah->caldata->nfcal_pending = true;
+
ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
/* Enable IQ, ADC Gain and ADC DC offset CALs */
--- a/drivers/net/wireless/ath/ath9k/calib.h
+++ b/drivers/net/wireless/ath/ath9k/calib.h
@@ -110,8 +110,7 @@ struct ath9k_pacal_info{
bool ath9k_hw_reset_calvalid(struct ath_hw *ah);
void ath9k_hw_start_nfcal(struct ath_hw *ah);
void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
-int16_t ath9k_hw_getnf(struct ath_hw *ah,
- struct ath9k_channel *chan);
+bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan);
void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
struct ath9k_channel *chan);
s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan);
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