From 5bc225acfe6a6226333061107708033a8d181d39 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 11 Oct 2013 14:09:54 +0200 Subject: [PATCH] ath9k: add noise floor parameter to ath9k_hw_getchan_noise Add nf parameter to ath9k_hw_getchan_noise() in order to compute NF for EXT chains with the same scale of noise floor calculated on CTL chains. ath9k_hw_getchan_noise() will be used in ath_process_fft() for spectral scan on HT40 channels Signed-off-by: Lorenzo Bianconi Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/calib.c | 10 +++++----- drivers/net/wireless/ath/ath9k/calib.h | 3 ++- drivers/net/wireless/ath/ath9k/hw.c | 2 +- drivers/net/wireless/ath/ath9k/link.c | 3 ++- 4 files changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index d8db74b0ef66..278365b8a895 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -63,13 +63,13 @@ 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) +s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan, + s16 nf) { s8 noise = ATH_DEFAULT_NOISE_FLOOR; - if (chan && chan->noisefloor) { - s8 delta = chan->noisefloor - - ATH9K_NF_CAL_NOISE_THRESH - + if (nf) { + s8 delta = nf - ATH9K_NF_CAL_NOISE_THRESH - ath9k_hw_get_default_nf(ah, chan); if (delta > 0) noise += delta; @@ -392,7 +392,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan) clear_bit(NFCAL_PENDING, &caldata->cal_flags); ath9k_hw_update_nfcal_hist_buffer(ah, caldata, nfarray); chan->noisefloor = h[0].privNF; - ah->noise = ath9k_hw_getchan_noise(ah, chan); + ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor); return true; } EXPORT_SYMBOL(ath9k_hw_getnf); diff --git a/drivers/net/wireless/ath/ath9k/calib.h b/drivers/net/wireless/ath/ath9k/calib.h index 3d70b8c2bcdd..b8ed95e9a335 100644 --- a/drivers/net/wireless/ath/ath9k/calib.h +++ b/drivers/net/wireless/ath/ath9k/calib.h @@ -116,7 +116,8 @@ void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, void ath9k_hw_bstuck_nfcal(struct ath_hw *ah); void ath9k_hw_reset_calibration(struct ath_hw *ah, struct ath9k_cal_list *currCal); -s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan); +s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan, + s16 nf); #endif /* CALIB_H */ diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index dcdbab48709e..54b04155e43b 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1885,7 +1885,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, } else if (caldata) { clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags); } - ah->noise = ath9k_hw_getchan_noise(ah, chan); + ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor); if (fastcc) { r = ath9k_hw_do_fastcc(ah, chan); diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index 84a60644f93a..b7975195d740 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -518,7 +518,8 @@ void ath_update_survey_nf(struct ath_softc *sc, int channel) if (chan->noisefloor) { survey->filled |= SURVEY_INFO_NOISE_DBM; - survey->noise = ath9k_hw_getchan_noise(ah, chan); + survey->noise = ath9k_hw_getchan_noise(ah, chan, + chan->noisefloor); } } -- 2.11.0