60 lines
1.9 KiB
Diff
60 lines
1.9 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/hw.c
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+++ b/drivers/net/wireless/ath/ath9k/hw.c
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@@ -1211,6 +1211,7 @@ void ath9k_hw_init_global_settings(struc
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{
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struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
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int acktimeout;
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+ int slottime;
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int sifstime;
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ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
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@@ -1225,8 +1226,10 @@ void ath9k_hw_init_global_settings(struc
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else
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sifstime = 10;
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- acktimeout = ah->slottime + sifstime;
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- ath9k_hw_setslottime(ah, ah->slottime);
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+ /* As defined by IEEE 802.11-2007 17.3.8.6 */
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+ slottime = ah->slottime + 3 * ah->coverage_class;
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+ acktimeout = slottime + sifstime;
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+ ath9k_hw_setslottime(ah, slottime);
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ath9k_hw_set_ack_timeout(ah, acktimeout);
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ath9k_hw_set_cts_timeout(ah, acktimeout);
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if (ah->globaltxtimeout != (u32) -1)
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--- a/drivers/net/wireless/ath/ath9k/hw.h
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+++ b/drivers/net/wireless/ath/ath9k/hw.h
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@@ -551,6 +551,7 @@ struct ath_hw {
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u32 *bank6Temp;
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int16_t txpower_indexoffset;
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+ int coverage_class;
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u32 beacon_interval;
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u32 slottime;
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u32 globaltxtimeout;
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -2015,6 +2015,18 @@ static void ath9k_sw_scan_complete(struc
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mutex_unlock(&sc->mutex);
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}
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+static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
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+{
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+ struct ath_wiphy *aphy = hw->priv;
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+ struct ath_softc *sc = aphy->sc;
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+ struct ath_hw *ah = sc->sc_ah;
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+
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+ mutex_lock(&sc->mutex);
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+ ah->coverage_class = coverage_class;
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+ ath9k_hw_init_global_settings(ah);
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+ mutex_unlock(&sc->mutex);
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+}
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+
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struct ieee80211_ops ath9k_ops = {
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.tx = ath9k_tx,
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.start = ath9k_start,
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@@ -2034,4 +2046,5 @@ struct ieee80211_ops ath9k_ops = {
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.sw_scan_start = ath9k_sw_scan_start,
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.sw_scan_complete = ath9k_sw_scan_complete,
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.rfkill_poll = ath9k_rfkill_poll_state,
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+ .set_coverage_class = ath9k_set_coverage_class,
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};
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