From 83322eb862e408029baf7872db1b82124f291d58 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 27 Sep 2014 22:49:44 +0200 Subject: [PATCH] ath9k_hw: disable hardware ad-hoc flag on ar934x rev 3 On AR934x rev 3, settin the ad-hoc flag completely messes up hardware state - beacons get stuck, almost no packets make it out, hardware is constantly reset. When leaving out that flag and setting up the hw like in AP mode, TSF timers won't be automatically synced, but at least the rest works. AR934x rev 2 and older are not affected by this bug Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 9 ++++++--- drivers/net/wireless/ath/ath9k/reg.h | 4 ++++ 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index cf0128e..88654e3 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1189,9 +1189,12 @@ static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode) switch (opmode) { case NL80211_IFTYPE_ADHOC: - set |= AR_STA_ID1_ADHOC; - REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION); - break; + if (!AR_SREV_9340_13(ah)) { + set |= AR_STA_ID1_ADHOC; + REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION); + break; + } + /* fall through */ case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_AP: set |= AR_STA_ID1_STA_AP; diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index a149970..95fdf93 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -903,6 +903,10 @@ #define AR_SREV_9340(_ah) \ (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9340)) +#define AR_SREV_9340_13(_ah) \ + (AR_SREV_9340((_ah)) && \ + ((_ah)->hw_version.macRev == AR_SREV_REVISION_9340_13)) + #define AR_SREV_9340_13_OR_LATER(_ah) \ (AR_SREV_9340((_ah)) && \ ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9340_13)) -- 2.7.4