From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
When switching offchannel, BSS related information
in the HW has to be reset to default values. Add a routine
to do this.
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/main.c | 57 ++++++++++++++++++++++++++---------
1 file changed, 42 insertions(+), 15 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 1bc2369..aa541fd 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -953,21 +953,6 @@ void ath9k_calculate_iter_data(struct ath_softc *sc,
list_for_each_entry(avp, &ctx->vifs, list)
ath9k_vif_iter(iter_data, avp->vif->addr, avp->vif);
-
-#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
- if (ctx == &sc->offchannel.chan) {
- struct ieee80211_vif *vif;
-
- if (sc->offchannel.state < ATH_OFFCHANNEL_ROC_START)
- vif = sc->offchannel.scan_vif;
- else
- vif = sc->offchannel.roc_vif;
-
- if (vif)
- ath9k_vif_iter(iter_data, vif->addr, vif);
- iter_data->beacons = false;
- }
-#endif
}
static void ath9k_set_assoc_state(struct ath_softc *sc,
@@ -1007,6 +992,43 @@ static void ath9k_set_assoc_state(struct ath_softc *sc,
vif->addr, common->curbssid);
}
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
+static void ath9k_set_offchannel_state(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ieee80211_vif *vif = NULL;
+
+ ath9k_ps_wakeup(sc);
+
+ if (sc->offchannel.state < ATH_OFFCHANNEL_ROC_START)
+ vif = sc->offchannel.scan_vif;
+ else
+ vif = sc->offchannel.roc_vif;
+
+ if (WARN_ON(!vif))
+ goto exit;
+
+ eth_zero_addr(common->curbssid);
+ eth_broadcast_addr(common->bssidmask);
+ ether_addr_copy(common->macaddr, vif->addr);
+ common->curaid = 0;
+ ah->opmode = vif->type;
+ ah->imask &= ~ATH9K_INT_SWBA;
+ ah->imask &= ~ATH9K_INT_TSFOOR;
+ ah->slottime = ATH9K_SLOT_TIME_9;
+
+ ath_hw_setbssidmask(common);
+ ath9k_hw_setopmode(ah);
+ ath9k_hw_write_associd(sc->sc_ah);
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_init_global_settings(ah);
+
+exit:
+ ath9k_ps_restore(sc);
+}
+#endif
+
/* Called with sc->mutex held. */
void ath9k_calculate_summary_state(struct ath_softc *sc,
struct ath_chanctx *ctx)
@@ -1021,6 +1043,11 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
if (ctx != sc->cur_chan)
return;
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
+ if (ctx == &sc->offchannel.chan)
+ return ath9k_set_offchannel_state(sc);
+#endif
+
ath9k_ps_wakeup(sc);
ath9k_calculate_iter_data(sc, ctx, &iter_data);
--
2.1.0
--
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