diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/calib.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/calib.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index a1250c586e4..99538810a31 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -16,6 +16,7 @@ #include "hw.h" #include "hw-ops.h" +#include <linux/export.h> /* Common calibration code */ @@ -63,13 +64,25 @@ 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 +94,7 @@ 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 +391,7 @@ 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 +399,7 @@ 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; } |