From f9b45ed9c5f8a04baa4056cd2a3094d5a2293f28 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 31 May 2011 23:07:29 +0000
Subject: mac80211: update to wireless-testing 2011-05-27

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27071 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../patches/530-ath9k_noise_dbm_fixup.patch        | 99 ++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 package/mac80211/patches/530-ath9k_noise_dbm_fixup.patch

(limited to 'package/mac80211/patches/530-ath9k_noise_dbm_fixup.patch')

diff --git a/package/mac80211/patches/530-ath9k_noise_dbm_fixup.patch b/package/mac80211/patches/530-ath9k_noise_dbm_fixup.patch
new file mode 100644
index 0000000000..8f72207316
--- /dev/null
+++ b/package/mac80211/patches/530-ath9k_noise_dbm_fixup.patch
@@ -0,0 +1,99 @@
+--- a/drivers/net/wireless/ath/ath9k/calib.c
++++ b/drivers/net/wireless/ath/ath9k/calib.c
+@@ -63,6 +63,19 @@ static s16 ath9k_hw_get_default_nf(struc
+ 	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,
+@@ -378,6 +391,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, s
+ 
+ 	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, s
+ 	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;
+ }
+ 
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1344,6 +1344,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+ 		memset(caldata, 0, sizeof(*caldata));
+ 		ath9k_init_nfcal_hist_buffer(ah, chan);
+ 	}
++	ah->noise = ath9k_hw_getchan_noise(ah, chan);
+ 
+ 	if (bChannelChange &&
+ 	    (ah->chip_fullsleep != true) &&
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -687,6 +687,7 @@ struct ath_hw {
+ 	enum nl80211_iftype opmode;
+ 	enum ath9k_power_mode power_mode;
+ 
++	s8 noise;
+ 	struct ath9k_hw_cal_data *caldata;
+ 	struct ath9k_pacal_info pacal_info;
+ 	struct ar5416Stats stats;
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -163,7 +163,7 @@ static void ath_update_survey_nf(struct 
+ 
+ 	if (chan->noisefloor) {
+ 		survey->filled |= SURVEY_INFO_NOISE_DBM;
+-		survey->noise = chan->noisefloor;
++		survey->noise = ath9k_hw_getchan_noise(ah, chan);
+ 	}
+ }
+ 
+--- a/drivers/net/wireless/ath/ath9k/recv.c
++++ b/drivers/net/wireless/ath/ath9k/recv.c
+@@ -985,6 +985,8 @@ static int ath9k_rx_skb_preprocess(struc
+ 				   struct ieee80211_rx_status *rx_status,
+ 				   bool *decrypt_error)
+ {
++	struct ath_hw *ah = common->ah;
++
+ 	memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
+ 
+ 	/*
+@@ -1005,7 +1007,7 @@ static int ath9k_rx_skb_preprocess(struc
+ 
+ 	rx_status->band = hw->conf.channel->band;
+ 	rx_status->freq = hw->conf.channel->center_freq;
+-	rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi;
++	rx_status->signal = ah->noise + rx_stats->rs_rssi;
+ 	rx_status->antenna = rx_stats->rs_antenna;
+ 	rx_status->flag |= RX_FLAG_MACTIME_MPDU;
+ 
+--- a/drivers/net/wireless/ath/ath9k/calib.h
++++ b/drivers/net/wireless/ath/ath9k/calib.h
+@@ -108,6 +108,7 @@ void ath9k_init_nfcal_hist_buffer(struct
+ 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);
+ 
+ 
+ #endif /* CALIB_H */
-- 
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