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-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h12
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c6
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c106
-rw-r--r--drivers/net/wireless/ath/ath9k/recv.c3
4 files changed, 127 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 44d74495c4de..05935f638525 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -114,6 +114,9 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
#define ATH_TXFIFO_DEPTH 8
#define ATH_TX_ERROR 0x01
+/* Stop tx traffic 1ms before the GO goes away */
+#define ATH_P2P_PS_STOP_TIME 1000
+
#define IEEE80211_SEQ_SEQ_SHIFT 4
#define IEEE80211_SEQ_MAX 4096
#define IEEE80211_WEP_IVLEN 3
@@ -367,11 +370,15 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
/********/
struct ath_vif {
+ struct ieee80211_vif *vif;
struct ath_node mcast_node;
int av_bslot;
bool primary_sta_vif;
__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
struct ath_buf *av_bcbuf;
+
+ /* P2P Client */
+ struct ieee80211_noa_data noa;
};
struct ath9k_vif_iter_data {
@@ -464,6 +471,8 @@ int ath_update_survey_stats(struct ath_softc *sc);
void ath_update_survey_nf(struct ath_softc *sc, int channel);
void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
void ath_ps_full_sleep(unsigned long data);
+void ath9k_p2p_ps_timer(void *priv);
+void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif);
/**********/
/* BTCOEX */
@@ -714,6 +723,9 @@ struct ath_softc {
struct completion paprd_complete;
wait_queue_head_t tx_wait;
+ struct ath_gen_timer *p2p_ps_timer;
+ struct ath_vif *p2p_ps_vif;
+
unsigned long driver_data;
u8 gtt_cnt;
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index bab6c5af62c5..21e174cfc909 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -589,6 +589,9 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
if (ret)
goto err_btcoex;
+ sc->p2p_ps_timer = ath_gen_timer_alloc(sc->sc_ah, ath9k_p2p_ps_timer,
+ NULL, sc, AR_FIRST_NDP_TIMER);
+
ath9k_cmn_init_crypto(sc->sc_ah);
ath9k_init_misc(sc);
ath_fill_led_pin(sc);
@@ -852,6 +855,9 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
{
int i = 0;
+ if (sc->p2p_ps_timer)
+ ath_gen_timer_free(sc->sc_ah, sc->p2p_ps_timer);
+
ath9k_deinit_btcoex(sc);
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index d69853b848ce..22c9e5471f9c 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -261,6 +261,8 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
sc->gtt_cnt = 0;
ieee80211_wake_queues(sc->hw);
+ ath9k_p2p_ps_timer(sc);
+
return true;
}
@@ -1119,6 +1121,8 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_assign_slot(sc, vif);
+ avp->vif = vif;
+
an->sc = sc;
an->sta = NULL;
an->vif = vif;
@@ -1163,6 +1167,29 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
return 0;
}
+static void
+ath9k_update_p2p_ps_timer(struct ath_softc *sc, struct ath_vif *avp)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ s32 tsf, target_tsf;
+
+ if (!avp || !avp->noa.has_next_tsf)
+ return;
+
+ ath9k_hw_gen_timer_stop(ah, sc->p2p_ps_timer);
+
+ tsf = ath9k_hw_gettsf32(sc->sc_ah);
+
+ target_tsf = avp->noa.next_tsf;
+ if (!avp->noa.absent)
+ target_tsf -= ATH_P2P_PS_STOP_TIME;
+
+ if (target_tsf - tsf < ATH_P2P_PS_STOP_TIME)
+ target_tsf = tsf + ATH_P2P_PS_STOP_TIME;
+
+ ath9k_hw_gen_timer_start(ah, sc->p2p_ps_timer, (u32) target_tsf, 1000000);
+}
+
static void ath9k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -1174,6 +1201,13 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
mutex_lock(&sc->mutex);
+ spin_lock_bh(&sc->sc_pcu_lock);
+ if (avp == sc->p2p_ps_vif) {
+ sc->p2p_ps_vif = NULL;
+ ath9k_update_p2p_ps_timer(sc, NULL);
+ }
+ spin_unlock_bh(&sc->sc_pcu_lock);
+
sc->nvifs--;
sc->tx99_vif = NULL;
@@ -1636,6 +1670,72 @@ static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
ath9k_set_assoc_state(sc, vif);
}
+void ath9k_p2p_ps_timer(void *priv)
+{
+ struct ath_softc *sc = priv;
+ struct ath_vif *avp = sc->p2p_ps_vif;
+ struct ieee80211_vif *vif;
+ struct ieee80211_sta *sta;
+ struct ath_node *an;
+ u32 tsf;
+
+ if (!avp)
+ return;
+
+ tsf = ath9k_hw_gettsf32(sc->sc_ah);
+ if (!avp->noa.absent)
+ tsf += ATH_P2P_PS_STOP_TIME;
+
+ if (!avp->noa.has_next_tsf ||
+ avp->noa.next_tsf - tsf > BIT(31))
+ ieee80211_update_p2p_noa(&avp->noa, tsf);
+
+ ath9k_update_p2p_ps_timer(sc, avp);
+
+ rcu_read_lock();
+
+ vif = avp->vif;
+ sta = ieee80211_find_sta(vif, vif->bss_conf.bssid);
+ if (!sta)
+ goto out;
+
+ an = (void *) sta->drv_priv;
+ if (an->sleeping == !!avp->noa.absent)
+ goto out;
+
+ an->sleeping = avp->noa.absent;
+ if (an->sleeping)
+ ath_tx_aggr_sleep(sta, sc, an);
+ else
+ ath_tx_aggr_wakeup(sc, an);
+
+out:
+ rcu_read_unlock();
+}
+
+void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif)
+{
+ struct ath_vif *avp = (void *)vif->drv_priv;
+ unsigned long flags;
+ u32 tsf;
+
+ if (!sc->p2p_ps_timer)
+ return;
+
+ if (vif->type != NL80211_IFTYPE_STATION || !vif->p2p)
+ return;
+
+ sc->p2p_ps_vif = avp;
+
+ spin_lock_irqsave(&sc->sc_pm_lock, flags);
+ if (!(sc->ps_flags & PS_BEACON_SYNC)) {
+ tsf = ath9k_hw_gettsf32(sc->sc_ah);
+ ieee80211_parse_p2p_noa(&vif->bss_conf.p2p_noa_attr, &avp->noa, tsf);
+ ath9k_update_p2p_ps_timer(sc, avp);
+ }
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+}
+
static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@@ -1710,6 +1810,12 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}
}
+ if (changed & BSS_CHANGED_P2P_PS) {
+ spin_lock_bh(&sc->sc_pcu_lock);
+ ath9k_update_p2p_ps(sc, vif);
+ spin_unlock_bh(&sc->sc_pcu_lock);
+ }
+
if (changed & CHECK_ANI)
ath_check_ani(sc);
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 6c9accdb52e4..a01efd3e741e 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -539,6 +539,9 @@ static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb)
ath_dbg(common, PS,
"Reconfigure beacon timers based on synchronized timestamp\n");
ath9k_set_beacon(sc);
+
+ if (sc->p2p_ps_vif)
+ ath9k_update_p2p_ps(sc, sc->p2p_ps_vif->vif);
}
if (ath_beacon_dtim_pending_cab(skb)) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-22 13:39:33 +0300