[PATCH v2] ath9k_hw: Fix rx latency of 11a mode
From: Rajkumar Manoharan <hidden>
Date: 2011-08-31 05:17:06
Subsystem:
atheros ath generic utilities, qualcomm atheros ath9k wireless driver, the rest · Maintainers:
Jeff Johnson, Toke Høiland-Jørgensen, Linus Torvalds
Rx latecy to start signal(usec) of 11a is 41 not 37 and also corrected the rx delay in quarter rate. Signed-off-by: Rajkumar Manoharan <redacted> --- drivers/net/wireless/ath/ath9k/hw.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 3a16ba2..308847d 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c@@ -975,7 +975,10 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) if (ah->misc_mode != 0) REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode); - rx_lat = 37; + if (IS_CHAN_A_FAST_CLOCK(ah, chan)) + rx_lat = 41; + else + rx_lat = 37; tx_lat = 54; if (IS_CHAN_HALF_RATE(chan)) {
@@ -989,7 +992,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) sifstime = 32; } else if (IS_CHAN_QUARTER_RATE(chan)) { eifs = 340; - rx_lat *= 4; + rx_lat = (rx_lat * 4) - 1; tx_lat *= 4; if (IS_CHAN_A_FAST_CLOCK(ah, chan)) tx_lat += 22;
--
1.7.6.1