diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/beacon.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/mac.c | 71 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/mac.h | 2 |
3 files changed, 12 insertions, 74 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index a4bdfdb..6d2a545f 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -373,6 +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, @@ -450,16 +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); @@ -780,7 +771,7 @@ void ath9k_set_beaconing_status(struct ath_softc *sc, bool status) ah->imask &= ~ATH9K_INT_SWBA; ath9k_hw_set_interrupts(ah, ah->imask); tasklet_kill(&sc->bcon_tasklet); - ath9k_hw_stoptxdma(ah, sc->beacon.beaconq); + ath9k_hw_stop_dma_queue(ah, sc->beacon.beaconq); } ath9k_ps_restore(sc); } diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 58aaf9a..cb5d814 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -171,84 +171,31 @@ void ath9k_hw_abort_tx_dma(struct ath_hw *ah) } EXPORT_SYMBOL(ath9k_hw_abort_tx_dma); -bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q) +bool ath9k_hw_stop_dma_queue(struct ath_hw *ah, u32 q) { -#define ATH9K_TX_STOP_DMA_TIMEOUT 4000 /* usec */ +#define ATH9K_TX_STOP_DMA_TIMEOUT 1000 /* usec */ #define ATH9K_TIME_QUANTUM 100 /* usec */ - struct ath_common *common = ath9k_hw_common(ah); - struct ath9k_hw_capabilities *pCap = &ah->caps; - struct ath9k_tx_queue_info *qi; - u32 tsfLow, j, wait; - u32 wait_time = ATH9K_TX_STOP_DMA_TIMEOUT / ATH9K_TIME_QUANTUM; - - if (q >= pCap->total_queues) { - ath_dbg(common, ATH_DBG_QUEUE, - "Stopping TX DMA, invalid queue: %u\n", q); - return false; - } - - qi = &ah->txq[q]; - if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { - ath_dbg(common, ATH_DBG_QUEUE, - "Stopping TX DMA, inactive queue: %u\n", q); - return false; - } + int wait_time = ATH9K_TX_STOP_DMA_TIMEOUT / ATH9K_TIME_QUANTUM; + int wait; REG_WRITE(ah, AR_Q_TXD, 1 << q); for (wait = wait_time; wait != 0; wait--) { - if (ath9k_hw_numtxpending(ah, q) == 0) - break; - udelay(ATH9K_TIME_QUANTUM); - } - - if (ath9k_hw_numtxpending(ah, q)) { - ath_dbg(common, ATH_DBG_QUEUE, - "%s: Num of pending TX Frames %d on Q %d\n", - __func__, ath9k_hw_numtxpending(ah, q), q); - - for (j = 0; j < 2; j++) { - tsfLow = REG_READ(ah, AR_TSF_L32); - REG_WRITE(ah, AR_QUIET2, - SM(10, AR_QUIET2_QUIET_DUR)); - REG_WRITE(ah, AR_QUIET_PERIOD, 100); - REG_WRITE(ah, AR_NEXT_QUIET_TIMER, tsfLow >> 10); - REG_SET_BIT(ah, AR_TIMER_MODE, - AR_QUIET_TIMER_EN); - - if ((REG_READ(ah, AR_TSF_L32) >> 10) == (tsfLow >> 10)) - break; - - ath_dbg(common, ATH_DBG_QUEUE, - "TSF has moved while trying to set quiet time TSF: 0x%08x\n", - tsfLow); - } - - REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH); - - udelay(200); - REG_CLR_BIT(ah, AR_TIMER_MODE, AR_QUIET_TIMER_EN); - - wait = wait_time; - while (ath9k_hw_numtxpending(ah, q)) { - if ((--wait) == 0) { - ath_err(common, - "Failed to stop TX DMA in 100 msec after killing last frame\n"); - break; - } + if (wait != wait_time) udelay(ATH9K_TIME_QUANTUM); - } - REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH); + if (ath9k_hw_numtxpending(ah, q) == 0) + break; } REG_WRITE(ah, AR_Q_TXD, 0); + return wait != 0; #undef ATH9K_TX_STOP_DMA_TIMEOUT #undef ATH9K_TIME_QUANTUM } -EXPORT_SYMBOL(ath9k_hw_stoptxdma); +EXPORT_SYMBOL(ath9k_hw_stop_dma_queue); void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs) { diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h index d37c6d4..b2b2ff8 100644 --- a/drivers/net/wireless/ath/ath9k/mac.h +++ b/drivers/net/wireless/ath/ath9k/mac.h @@ -676,7 +676,7 @@ void ath9k_hw_txstart(struct ath_hw *ah, u32 q); void ath9k_hw_cleartxdesc(struct ath_hw *ah, void *ds); u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q); bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel); -bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q); +bool ath9k_hw_stop_dma_queue(struct ath_hw *ah, u32 q); void ath9k_hw_abort_tx_dma(struct ath_hw *ah); void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs); bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q, |