ath9k: improve signal strength / channel noise reporting accuracy

SVN-Revision: 34592
2012-12-10 13:51:02 +00:00 · 2012-12-10 13:51:02 +00:00 · 8d15b064e0
commit 8d15b064e0
parent 45a0216593
1 changed files with 22 additions and 0 deletions
--- a/package/mac80211/patches/300-pending_work.patch
+++ b/package/mac80211/patches/300-pending_work.patch
@ -561,3 +561,25 @@
 	ieee80211_rx(ar->hw, skb);
 	return 0;
 }
+--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
+@@ -69,6 +69,7 @@ s16 ath9k_hw_getchan_noise(struct ath_hw
+ 
+ 	if (chan && chan->noisefloor) {
+ 		s8 delta = chan->noisefloor -
+			   ATH9K_NF_CAL_NOISE_THRESH -
+ 			   ath9k_hw_get_default_nf(ah, chan);
+ 		if (delta > 0)
+ 			noise += delta;
+--- a/drivers/net/wireless/ath/ath9k/calib.h
+++ b/drivers/net/wireless/ath/ath9k/calib.h
+@@ -21,6 +21,9 @@
+ 
+ #define AR_PHY_CCA_FILTERWINDOW_LENGTH          5
+ 
+/* Internal noise floor can vary by about 6db depending on the frequency */
+#define ATH9K_NF_CAL_NOISE_THRESH		6
+
+ #define NUM_NF_READINGS       6
+ #define ATH9K_NF_CAL_HIST_MAX 5
+