ath9k: do not adjust the slot time setting for long distance, it seems to cause long latencies and low throughput

SVN-Revision: 24498

package/mac80211/patches/520-ath9k_slottime_init.patch

@@ -0,0 +1,11 @@
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -417,7 +417,7 @@ static void ath9k_hw_init_defaults(struc
+ 		AR_STA_ID1_MCAST_KSRCH;
+ 	ah->beacon_interval = 100;
+ 	ah->enable_32kHz_clock = DONT_USE_32KHZ;
+-	ah->slottime = (u32) -1;
++	ah->slottime = 9;
+ 	ah->globaltxtimeout = (u32) -1;
+ 	ah->power_mode = ATH9K_PM_UNDEFINED;
+ }

package/mac80211/patches/521-ath9k_fix_distance_setting.patch

@@ -0,0 +1,11 @@
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -813,7 +813,7 @@ void ath9k_hw_init_global_settings(struc
+ 	if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
+ 		acktimeout += 64 - sifstime - ah->slottime;
+ 
+-	ath9k_hw_setslottime(ah, slottime);
++	ath9k_hw_setslottime(ah, ah->slottime);
+ 	ath9k_hw_set_ack_timeout(ah, acktimeout);
+ 	ath9k_hw_set_cts_timeout(ah, acktimeout);
+ 	if (ah->globaltxtimeout != (u32) -1)