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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/calib.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/calib.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index a1250c586e4..ebaf304f464 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -63,13 +63,25 @@ static s16 ath9k_hw_get_default_nf(struct ath_hw *ah,
return ath9k_hw_get_nf_limits(ah, chan)->nominal;
}
+s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ s8 noise = ATH_DEFAULT_NOISE_FLOOR;
+
+ if (chan && chan->noisefloor) {
+ s8 delta = chan->noisefloor -
+ ath9k_hw_get_default_nf(ah, chan);
+ if (delta > 0)
+ noise += delta;
+ }
+ return noise;
+}
+EXPORT_SYMBOL(ath9k_hw_getchan_noise);
static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
struct ath9k_hw_cal_data *cal,
int16_t *nfarray)
{
struct ath_common *common = ath9k_hw_common(ah);
- struct ieee80211_conf *conf = &common->hw->conf;
struct ath_nf_limits *limit;
struct ath9k_nfcal_hist *h;
bool high_nf_mid = false;
@@ -81,7 +93,7 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
for (i = 0; i < NUM_NF_READINGS; i++) {
if (!(chainmask & (1 << i)) ||
- ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
+ ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(ah->curchan)))
continue;
h[i].nfCalBuffer[h[i].currIndex] = nfarray[i];
@@ -378,6 +390,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
if (!caldata) {
chan->noisefloor = nf;
+ ah->noise = ath9k_hw_getchan_noise(ah, chan);
return false;
}
@@ -385,6 +398,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
caldata->nfcal_pending = false;
ath9k_hw_update_nfcal_hist_buffer(ah, caldata, nfarray);
chan->noisefloor = h[0].privNF;
+ ah->noise = ath9k_hw_getchan_noise(ah, chan);
return true;
}