From 38fddf0082f7d5f90c59333cf2d760025c97d552 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 10 Jun 2012 12:03:33 +0000
Subject: ath9k: add some more ani fixes

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32159 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../patches/577-ath9k_fix_noise_immunity.patch     | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 package/mac80211/patches/577-ath9k_fix_noise_immunity.patch

(limited to 'package/mac80211/patches/577-ath9k_fix_noise_immunity.patch')

diff --git a/package/mac80211/patches/577-ath9k_fix_noise_immunity.patch b/package/mac80211/patches/577-ath9k_fix_noise_immunity.patch
new file mode 100644
index 0000000000..d6ef678261
--- /dev/null
+++ b/package/mac80211/patches/577-ath9k_fix_noise_immunity.patch
@@ -0,0 +1,69 @@
+--- a/drivers/net/wireless/ath/ath9k/ani.c
++++ b/drivers/net/wireless/ath/ath9k/ani.c
+@@ -154,9 +154,7 @@ static void ath9k_hw_set_ofdm_nil(struct
+ 		aniState->rssiThrLow, aniState->rssiThrHigh);
+ 
+ 	if (aniState->update_ani)
+-		aniState->ofdmNoiseImmunityLevel =
+-			(immunityLevel > ATH9K_ANI_OFDM_DEF_LEVEL) ?
+-			immunityLevel : ATH9K_ANI_OFDM_DEF_LEVEL;
++		aniState->ofdmNoiseImmunityLevel = immunityLevel;
+ 
+ 	entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
+ 	entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
+@@ -217,9 +215,7 @@ static void ath9k_hw_set_cck_nil(struct 
+ 		immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI;
+ 
+ 	if (aniState->update_ani)
+-		aniState->cckNoiseImmunityLevel =
+-			(immunityLevel > ATH9K_ANI_CCK_DEF_LEVEL) ?
+-			immunityLevel : ATH9K_ANI_CCK_DEF_LEVEL;
++		aniState->cckNoiseImmunityLevel = immunityLevel;
+ 
+ 	entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel];
+ 	entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel];
+@@ -285,6 +281,7 @@ void ath9k_ani_reset(struct ath_hw *ah, 
+ 	struct ar5416AniState *aniState = &ah->curchan->ani;
+ 	struct ath9k_channel *chan = ah->curchan;
+ 	struct ath_common *common = ath9k_hw_common(ah);
++	int ofdm_nil, cck_nil;
+ 
+ 	if (!DO_ANI(ah))
+ 		return;
+@@ -306,6 +303,11 @@ void ath9k_ani_reset(struct ath_hw *ah, 
+ 	/* always allow mode (on/off) to be controlled */
+ 	ah->ani_function |= ATH9K_ANI_MODE;
+ 
++	ofdm_nil = max_t(int, ATH9K_ANI_OFDM_DEF_LEVEL,
++			 aniState->ofdmNoiseImmunityLevel);
++	cck_nil = max_t(int, ATH9K_ANI_CCK_DEF_LEVEL,
++			 aniState->cckNoiseImmunityLevel);
++
+ 	if (is_scanning ||
+ 	    (ah->opmode != NL80211_IFTYPE_STATION &&
+ 	     ah->opmode != NL80211_IFTYPE_ADHOC)) {
+@@ -329,8 +331,8 @@ void ath9k_ani_reset(struct ath_hw *ah, 
+ 				aniState->cckNoiseImmunityLevel);
+ 
+ 			aniState->update_ani = false;
+-			ath9k_hw_set_ofdm_nil(ah, ATH9K_ANI_OFDM_DEF_LEVEL);
+-			ath9k_hw_set_cck_nil(ah, ATH9K_ANI_CCK_DEF_LEVEL);
++			ofdm_nil = ATH9K_ANI_OFDM_DEF_LEVEL;
++			cck_nil = ATH9K_ANI_CCK_DEF_LEVEL;
+ 		}
+ 	} else {
+ 		/*
+@@ -346,11 +348,9 @@ void ath9k_ani_reset(struct ath_hw *ah, 
+ 			aniState->cckNoiseImmunityLevel);
+ 
+ 			aniState->update_ani = true;
+-			ath9k_hw_set_ofdm_nil(ah,
+-					      aniState->ofdmNoiseImmunityLevel);
+-			ath9k_hw_set_cck_nil(ah,
+-					     aniState->cckNoiseImmunityLevel);
+ 	}
++	ath9k_hw_set_ofdm_nil(ah, ofdm_nil);
++	ath9k_hw_set_cck_nil(ah, cck_nil);
+ 
+ 	/*
+ 	 * enable phy counters if hw supports or if not, enable phy
-- 
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