From 24a1936bda0aa1ccf95c63dd3042a970885aaf11 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Tue, 16 Sep 2014 02:13:15 +0200 Subject: [PATCH] ath9k: enable dynack using set_coverage_class codepath Enable ACK timeout estimation algorithm if set_coverage_class routine has been called with negative coverage_class parameter. Dynack is automatically disabled setting valid value for coverage class Signed-off-by: Lorenzo Bianconi Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 33 +++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 608335957974..6969aba6ab81 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1876,6 +1876,20 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, return 0; } +static void ath9k_enable_dynack(struct ath_softc *sc) +{ +#ifdef CONFIG_ATH9K_DYNACK + u32 rfilt; + struct ath_hw *ah = sc->sc_ah; + + ath_dynack_reset(ah); + + ah->dynack.enabled = true; + rfilt = ath_calcrxfilter(sc); + ath9k_hw_setrxfilter(ah, rfilt); +#endif +} + static void ath9k_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) { @@ -1886,11 +1900,22 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, return; mutex_lock(&sc->mutex); - ah->coverage_class = coverage_class; - ath9k_ps_wakeup(sc); - ath9k_hw_init_global_settings(ah); - ath9k_ps_restore(sc); + if (coverage_class >= 0) { + ah->coverage_class = coverage_class; + if (ah->dynack.enabled) { + u32 rfilt; + + ah->dynack.enabled = false; + rfilt = ath_calcrxfilter(sc); + ath9k_hw_setrxfilter(ah, rfilt); + } + ath9k_ps_wakeup(sc); + ath9k_hw_init_global_settings(ah); + ath9k_ps_restore(sc); + } else if (!ah->dynack.enabled) { + ath9k_enable_dynack(sc); + } mutex_unlock(&sc->mutex); } -- 2.20.1