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path: root/drivers/net/wireless/ath/ath9k/beacon.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/beacon.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c93
1 files changed, 54 insertions, 39 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 385ba03134ba..6d2a545fc35e 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -112,8 +112,7 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
{
- struct ath_wiphy *aphy = hw->priv;
- struct ath_softc *sc = aphy->sc;
+ struct ath_softc *sc = hw->priv;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_tx_control txctl;
@@ -132,8 +131,7 @@ static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
- struct ath_wiphy *aphy = hw->priv;
- struct ath_softc *sc = aphy->sc;
+ struct ath_softc *sc = hw->priv;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_buf *bf;
struct ath_vif *avp;
@@ -142,13 +140,10 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
struct ieee80211_tx_info *info;
int cabq_depth;
- if (aphy->state != ATH_WIPHY_ACTIVE)
- return NULL;
-
avp = (void *)vif->drv_priv;
cabq = sc->beacon.cabq;
- if (avp->av_bcbuf == NULL)
+ if ((avp->av_bcbuf == NULL) || !avp->is_bslot_active)
return NULL;
/* Release the old beacon first */
@@ -225,13 +220,13 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
return bf;
}
-int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
+int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
{
- struct ath_softc *sc = aphy->sc;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp;
struct ath_buf *bf;
struct sk_buff *skb;
+ struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
__le64 tstamp;
avp = (void *)vif->drv_priv;
@@ -244,9 +239,7 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
struct ath_buf, list);
list_del(&avp->av_bcbuf->list);
- if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
- sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC ||
- sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) {
+ if (ath9k_uses_beacons(vif->type)) {
int slot;
/*
* Assign the vif to a beacon xmit slot. As
@@ -256,6 +249,7 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
for (slot = 0; slot < ATH_BCBUF; slot++)
if (sc->beacon.bslot[slot] == NULL) {
avp->av_bslot = slot;
+ avp->is_bslot_active = false;
/* NB: keep looking for a double slot */
if (slot == 0 || !sc->beacon.bslot[slot-1])
@@ -263,7 +257,6 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
}
BUG_ON(sc->beacon.bslot[avp->av_bslot] != NULL);
sc->beacon.bslot[avp->av_bslot] = vif;
- sc->beacon.bslot_aphy[avp->av_bslot] = aphy;
sc->nbcnvifs++;
}
}
@@ -281,10 +274,8 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
/* NB: the beacon data buffer must be 32-bit aligned. */
skb = ieee80211_beacon_get(sc->hw, vif);
- if (skb == NULL) {
- ath_dbg(common, ATH_DBG_BEACON, "cannot get skb\n");
+ if (skb == NULL)
return -ENOMEM;
- }
tstamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
sc->beacon.bc_tstamp = le64_to_cpu(tstamp);
@@ -293,7 +284,7 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
u64 tsfadjust;
int intval;
- intval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+ intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
/*
* Calculate the TSF offset for this beacon slot, i.e., the
@@ -325,6 +316,7 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
ath_err(common, "dma_mapping_error on beacon alloc\n");
return -ENOMEM;
}
+ avp->is_bslot_active = true;
return 0;
}
@@ -336,7 +328,6 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp)
if (avp->av_bslot != -1) {
sc->beacon.bslot[avp->av_bslot] = NULL;
- sc->beacon.bslot_aphy[avp->av_bslot] = NULL;
sc->nbcnvifs--;
}
@@ -358,11 +349,11 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp)
void ath_beacon_tasklet(unsigned long data)
{
struct ath_softc *sc = (struct ath_softc *)data;
+ struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_buf *bf = NULL;
struct ieee80211_vif *vif;
- struct ath_wiphy *aphy;
int slot;
u32 bfaddr, bc = 0, tsftu;
u64 tsf;
@@ -382,6 +373,7 @@ void ath_beacon_tasklet(unsigned long data)
ath_dbg(common, ATH_DBG_BSTUCK,
"missed %u consecutive beacons\n",
sc->beacon.bmisscnt);
+ ath9k_hw_stop_dma_queue(ah, sc->beacon.beaconq);
ath9k_hw_bstuck_nfcal(ah);
} else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) {
ath_dbg(common, ATH_DBG_BSTUCK,
@@ -406,7 +398,7 @@ void ath_beacon_tasklet(unsigned long data)
* on the tsf to safeguard against missing an swba.
*/
- intval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+ intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU(tsf>>32, tsf);
@@ -420,7 +412,6 @@ void ath_beacon_tasklet(unsigned long data)
*/
slot = ATH_BCBUF - slot - 1;
vif = sc->beacon.bslot[slot];
- aphy = sc->beacon.bslot_aphy[slot];
ath_dbg(common, ATH_DBG_BEACON,
"slot %d [tsf %llu tsftu %u intval %u] vif %p\n",
@@ -428,7 +419,7 @@ void ath_beacon_tasklet(unsigned long data)
bfaddr = 0;
if (vif) {
- bf = ath_beacon_generate(aphy->hw, vif);
+ bf = ath_beacon_generate(sc->hw, vif);
if (bf != NULL) {
bfaddr = bf->bf_daddr;
bc = 1;
@@ -460,16 +451,6 @@ void ath_beacon_tasklet(unsigned long data)
sc->beacon.updateslot = OK;
}
if (bfaddr != 0) {
- /*
- * Stop any current dma and put the new frame(s) on the queue.
- * This should never fail since we check above that no frames
- * are still pending on the queue.
- */
- if (!ath9k_hw_stoptxdma(ah, sc->beacon.beaconq)) {
- ath_err(common, "beacon queue %u did not stop?\n",
- sc->beacon.beaconq);
- }
-
/* NB: cabq traffic should already be queued and primed */
ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bfaddr);
ath9k_hw_txstart(ah, sc->beacon.beaconq);
@@ -720,10 +701,10 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
iftype = sc->sc_ah->opmode;
}
- cur_conf->listen_interval = 1;
- cur_conf->dtim_count = 1;
- cur_conf->bmiss_timeout =
- ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
+ cur_conf->listen_interval = 1;
+ cur_conf->dtim_count = 1;
+ cur_conf->bmiss_timeout =
+ ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
/*
* It looks like mac80211 may end up using beacon interval of zero in
@@ -735,8 +716,9 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
cur_conf->beacon_interval = 100;
/*
- * Some times we dont parse dtim period from mac80211, in that case
- * use a default value
+ * We don't parse dtim period from mac80211 during the driver
+ * initialization as it breaks association with hidden-ssid
+ * AP and it causes latency in roaming
*/
if (cur_conf->dtim_period == 0)
cur_conf->dtim_period = 1;
@@ -760,3 +742,36 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
sc->sc_flags |= SC_OP_BEACONS;
}
+
+void ath9k_set_beaconing_status(struct ath_softc *sc, bool status)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_vif *avp;
+ int slot;
+ bool found = false;
+
+ ath9k_ps_wakeup(sc);
+ if (status) {
+ for (slot = 0; slot < ATH_BCBUF; slot++) {
+ if (sc->beacon.bslot[slot]) {
+ avp = (void *)sc->beacon.bslot[slot]->drv_priv;
+ if (avp->is_bslot_active) {
+ found = true;
+ break;
+ }
+ }
+ }
+ if (found) {
+ /* Re-enable beaconing */
+ ah->imask |= ATH9K_INT_SWBA;
+ ath9k_hw_set_interrupts(ah, ah->imask);
+ }
+ } else {
+ /* Disable SWBA interrupt */
+ ah->imask &= ~ATH9K_INT_SWBA;
+ ath9k_hw_set_interrupts(ah, ah->imask);
+ tasklet_kill(&sc->bcon_tasklet);
+ ath9k_hw_stop_dma_queue(ah, sc->beacon.beaconq);
+ }
+ ath9k_ps_restore(sc);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 17:52:29 +0000