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authorFelix Fietkau2012-04-19 21:18:25 +0200
committerJohn W. Linville2012-04-23 15:35:31 -0400
commit3e61d3f9b2f6381f6f30d3d0ff874251a3491d05 (patch)
treea3086662b7ecc7b23b213785f96dfe96a19c2507 /drivers/net/wireless
parent08685ce30f1f4d26c91f0bde1a07df1135fb5755 (diff)
ath9k_hw: increase symbol overlap window for half/quarter channels
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_phy.c4
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_phy.h3
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index be6069bc4831..4c8d0d770945 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -728,6 +728,10 @@ static void ar9003_hw_set_rfmode(struct ath_hw *ah,
if (IS_CHAN_HALF_RATE(chan))
rfMode |= AR_PHY_MODE_HALF;
+ if (rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF))
+ REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL,
+ AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3);
+
REG_WRITE(ah, AR_PHY_MODE, rfMode);
}
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index d834d97fe727..7268a48a92a1 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -468,6 +468,9 @@
#define AR_PHY_ADDAC_PARA_CTL (AR_SM_BASE + 0x150)
#define AR_PHY_XPA_CFG (AR_SM_BASE + 0x158)
+#define AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW 3
+#define AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW_S 0
+
#define AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A 0x0001FC00
#define AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A_S 10
#define AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A 0x3FF