diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index c161b75cded..7c3a98b1957 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2070,6 +2070,31 @@ static int ath9k_tx(struct ieee80211_hw *hw, goto exit; } + if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { + /* + * We are using PS-Poll and mac80211 can request TX while in + * power save mode. Need to wake up hardware for the TX to be + * completed and if needed, also for RX of buffered frames. + */ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + ath9k_ps_wakeup(sc); + ath9k_hw_setrxabort(sc->sc_ah, 0); + if (ieee80211_is_pspoll(hdr->frame_control)) { + DPRINTF(sc, ATH_DBG_PS, "Sending PS-Poll to pick a " + "buffered frame\n"); + sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; + } else { + DPRINTF(sc, ATH_DBG_PS, "Wake up to complete TX\n"); + sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; + } + /* + * The actual restore operation will happen only after + * the sc_flags bit is cleared. We are just dropping + * the ps_usecount here. + */ + ath9k_ps_restore(sc); + } + memset(&txctl, 0, sizeof(struct ath_tx_control)); /* @@ -2307,7 +2332,10 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { ath9k_hw_setrxabort(sc->sc_ah, 0); - sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; + sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | + SC_OP_WAIT_FOR_CAB | + SC_OP_WAIT_FOR_PSPOLL_DATA | + SC_OP_WAIT_FOR_TX_ACK); if (sc->imask & ATH9K_INT_TIM_TIMER) { sc->imask &= ~ATH9K_INT_TIM_TIMER; ath9k_hw_set_interrupts(sc->sc_ah, |