2012-07-17 11:48:16

by Sujith Manoharan

[permalink] [raw]
Subject: [PATCH 11/12] ath9k: Reconfigure VIF state properly

When an interface in AP or P2P-GO mode is removed,
check whether a station interface is already present and
reconfigure the beacon timers etc. properly if it's
associated.

Signed-off-by: Sujith Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/main.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 55c9095..6a44c95 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -19,6 +19,9 @@
#include "ath9k.h"
#include "btcoex.h"

+static void ath9k_set_assoc_state(struct ath_softc *sc,
+ struct ieee80211_vif *vif);
+
u8 ath9k_parse_mpdudensity(u8 mpdudensity)
{
/*
@@ -878,6 +881,18 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
}
}

+static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+ struct ath_softc *sc = data;
+ struct ath_vif *avp = (void *)vif->drv_priv;
+
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return;
+
+ if (avp->primary_sta_vif)
+ ath9k_set_assoc_state(sc, vif);
+}
+
/* Called with sc->mutex held. */
void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
@@ -911,6 +926,7 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_vif_iter_data iter_data;
+ enum nl80211_iftype old_opmode = ah->opmode;

ath9k_calculate_iter_data(hw, vif, &iter_data);

@@ -941,6 +957,17 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
ah->imask &= ~ATH9K_INT_TSFOOR;

ath9k_hw_set_interrupts(ah);
+
+ /*
+ * If we are changing the opmode to STATION,
+ * a beacon sync needs to be done.
+ */
+ if (ah->opmode == NL80211_IFTYPE_STATION &&
+ old_opmode == NL80211_IFTYPE_AP &&
+ test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
+ ieee80211_iterate_active_interfaces_atomic(sc->hw,
+ ath9k_sta_vif_iter, sc);
+ }
}

static int ath9k_add_interface(struct ieee80211_hw *hw,
--
1.7.11.2