MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION("0.6.0 (EXPERIMENTAL)");
-static int ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan);
+static int ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
+ bool skip_pcu);
static int ath5k_beacon_update(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
static void ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf);
case AR5K_MODE_11G:
channels[count].hw_value = chfreq | CHANNEL_OFDM;
break;
- case AR5K_MODE_11A_TURBO:
- case AR5K_MODE_11G_TURBO:
- channels[count].hw_value = chfreq |
- CHANNEL_OFDM | CHANNEL_TURBO;
- break;
case AR5K_MODE_11B:
channels[count].hw_value = CHANNEL_B;
}
* hardware at the new frequency, and then re-enable
* the relevant bits of the h/w.
*/
- return ath5k_reset(sc, chan);
+ return ath5k_reset(sc, chan, true);
}
static void
/* Calculate combined mode - when APs are active, operate in AP mode.
* Otherwise use the mode of the new interface. This can currently
* only deal with combinations of APs and STAs. Only one ad-hoc
- * interfaces is allowed above.
+ * interfaces is allowed.
*/
if (avf->opmode == NL80211_IFTYPE_AP)
iter_data->opmode = NL80211_IFTYPE_AP;
iter_data->opmode = avf->opmode;
}
-static void ath_do_set_opmode(struct ath5k_softc *sc)
-{
- struct ath5k_hw *ah = sc->ah;
- ath5k_hw_set_opmode(ah, sc->opmode);
- ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "mode setup opmode %d (%s)\n",
- sc->opmode, ath_opmode_to_string(sc->opmode));
-}
-
-void ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
- struct ieee80211_vif *vif)
+static void ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
+ struct ieee80211_vif *vif)
{
struct ath_common *common = ath5k_hw_common(sc->ah);
struct ath_vif_iter_data iter_data;
/* Nothing active, default to station mode */
sc->opmode = NL80211_IFTYPE_STATION;
- ath_do_set_opmode(sc);
+ ath5k_hw_set_opmode(sc->ah, sc->opmode);
+ ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "mode setup opmode %d (%s)\n",
+ sc->opmode, ath_opmode_to_string(sc->opmode));
if (iter_data.need_set_hw_addr && iter_data.found_active)
ath5k_hw_set_lladdr(sc->ah, iter_data.active_mac);
return ret;
}
+/**
+ * ath5k_drain_tx_buffs - Empty tx buffers
+ *
+ * @sc The &struct ath5k_softc
+ *
+ * Empty tx buffers from all queues in preparation
+ * of a reset or during shutdown.
+ *
+ * NB: this assumes output has been stopped and
+ * we do not need to block ath5k_tx_tasklet
+ */
static void
-ath5k_txq_drainq(struct ath5k_softc *sc, struct ath5k_txq *txq)
+ath5k_drain_tx_buffs(struct ath5k_softc *sc)
{
+ struct ath5k_txq *txq;
struct ath5k_buf *bf, *bf0;
+ int i;
- /*
- * NB: this assumes output has been stopped and
- * we do not need to block ath5k_tx_tasklet
- */
- spin_lock_bh(&txq->lock);
- list_for_each_entry_safe(bf, bf0, &txq->q, list) {
- ath5k_debug_printtxbuf(sc, bf);
-
- ath5k_txbuf_free_skb(sc, bf);
+ for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
+ if (sc->txqs[i].setup) {
+ txq = &sc->txqs[i];
+ spin_lock_bh(&txq->lock);
+ list_for_each_entry_safe(bf, bf0, &txq->q, list) {
+ ath5k_debug_printtxbuf(sc, bf);
- spin_lock_bh(&sc->txbuflock);
- list_move_tail(&bf->list, &sc->txbuf);
- sc->txbuf_len++;
- txq->txq_len--;
- spin_unlock_bh(&sc->txbuflock);
- }
- txq->link = NULL;
- txq->txq_poll_mark = false;
- spin_unlock_bh(&txq->lock);
-}
+ ath5k_txbuf_free_skb(sc, bf);
-/*
- * Drain the transmit queues and reclaim resources.
- */
-static void
-ath5k_txq_cleanup(struct ath5k_softc *sc)
-{
- struct ath5k_hw *ah = sc->ah;
- unsigned int i;
-
- /* XXX return value */
- if (likely(!test_bit(ATH_STAT_INVALID, sc->status))) {
- /* don't touch the hardware if marked invalid */
- ath5k_hw_stop_tx_dma(ah, sc->bhalq);
- ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "beacon queue %x\n",
- ath5k_hw_get_txdp(ah, sc->bhalq));
- for (i = 0; i < ARRAY_SIZE(sc->txqs); i++)
- if (sc->txqs[i].setup) {
- ath5k_hw_stop_tx_dma(ah, sc->txqs[i].qnum);
- ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "txq [%u] %x, "
- "link %p\n",
- sc->txqs[i].qnum,
- ath5k_hw_get_txdp(ah,
- sc->txqs[i].qnum),
- sc->txqs[i].link);
+ spin_lock_bh(&sc->txbuflock);
+ list_move_tail(&bf->list, &sc->txbuf);
+ sc->txbuf_len++;
+ txq->txq_len--;
+ spin_unlock_bh(&sc->txbuflock);
}
+ txq->link = NULL;
+ txq->txq_poll_mark = false;
+ spin_unlock_bh(&txq->lock);
+ }
}
-
- for (i = 0; i < ARRAY_SIZE(sc->txqs); i++)
- if (sc->txqs[i].setup)
- ath5k_txq_drainq(sc, &sc->txqs[i]);
}
static void
}
/*
- * Disable the receive h/w in preparation for a reset.
+ * Disable the receive logic on PCU (DRU)
+ * In preparation for a shutdown.
+ *
+ * Note: Doesn't stop rx DMA, ath5k_hw_dma_stop
+ * does.
*/
static void
ath5k_rx_stop(struct ath5k_softc *sc)
{
struct ath5k_hw *ah = sc->ah;
- ath5k_hw_stop_rx_pcu(ah); /* disable PCU */
ath5k_hw_set_rx_filter(ah, 0); /* clear recv filter */
- ath5k_hw_stop_rx_dma(ah); /* disable DMA engine */
+ ath5k_hw_stop_rx_pcu(ah); /* disable PCU */
ath5k_debug_printrxbuffs(sc, ah);
}
memcmp(mgmt->bssid, common->curbssid, ETH_ALEN) != 0)
return;
- ah->ah_beacon_rssi_avg = ath5k_moving_average(ah->ah_beacon_rssi_avg,
- rssi);
+ ewma_add(&ah->ah_beacon_rssi_avg, rssi);
/* in IBSS mode we should keep RSSI statistics per neighbour */
/* le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS */
* This should never fail since we check above that no frames
* are still pending on the queue.
*/
- if (unlikely(ath5k_hw_stop_tx_dma(ah, sc->bhalq))) {
+ if (unlikely(ath5k_hw_stop_beacon_queue(ah, sc->bhalq))) {
ATH5K_WARN(sc, "beacon queue %u didn't start/stop ?\n", sc->bhalq);
/* NB: hw still stops DMA, so proceed */
}
} else
ath5k_beacon_update_timers(sc, -1);
} else {
- ath5k_hw_stop_tx_dma(sc->ah, sc->bhalq);
+ ath5k_hw_stop_beacon_queue(sc->ah, sc->bhalq);
}
ath5k_hw_set_imr(ah, sc->imask);
if (needreset) {
ATH5K_DBG(sc, ATH5K_DEBUG_RESET,
"TX queues stuck, resetting\n");
- ath5k_reset(sc, sc->curchan);
+ ath5k_reset(sc, NULL, true);
}
ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
ath5k_led_off(sc);
ath5k_hw_set_imr(ah, 0);
synchronize_irq(sc->pdev->irq);
- }
- ath5k_txq_cleanup(sc);
- if (!test_bit(ATH_STAT_INVALID, sc->status)) {
ath5k_rx_stop(sc);
+ ath5k_hw_dma_stop(ah);
+ ath5k_drain_tx_buffs(sc);
ath5k_hw_phy_disable(ah);
}
AR5K_INT_RXORN | AR5K_INT_TXDESC | AR5K_INT_TXEOL |
AR5K_INT_FATAL | AR5K_INT_GLOBAL | AR5K_INT_MIB;
- ret = ath5k_reset(sc, NULL);
+ ret = ath5k_reset(sc, NULL, false);
if (ret)
goto done;
for (i = 0; i < common->keymax; i++)
ath_hw_keyreset(common, (u16) i);
- ath5k_hw_set_ack_bitrate_high(ah, true);
+ /* Use higher rates for acks instead of base
+ * rate */
+ ah->ah_ack_bitrate_high = true;
for (i = 0; i < ARRAY_SIZE(sc->bslot); i++)
sc->bslot[i] = NULL;
* This should be called with sc->lock.
*/
static int
-ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan)
+ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
+ bool skip_pcu)
{
struct ath5k_hw *ah = sc->ah;
int ret;
stop_tasklets(sc);
if (chan) {
- ath5k_txq_cleanup(sc);
- ath5k_rx_stop(sc);
+ ath5k_drain_tx_buffs(sc);
sc->curchan = chan;
sc->curband = &sc->sbands[chan->band];
}
- ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, chan != NULL);
+ ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, chan != NULL,
+ skip_pcu);
if (ret) {
ATH5K_ERR(sc, "can't reset hardware (%d)\n", ret);
goto err;
ah->ah_cal_next_full = jiffies;
ah->ah_cal_next_ani = jiffies;
ah->ah_cal_next_nf = jiffies;
+ ewma_init(&ah->ah_beacon_rssi_avg, 1000, 8);
/*
* Change channels and update the h/w rate map if we're switching;
reset_work);
mutex_lock(&sc->lock);
- ath5k_reset(sc, sc->curchan);
+ ath5k_reset(sc, NULL, true);
mutex_unlock(&sc->lock);
}
{
struct ath5k_softc *sc = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
+ struct ath_common *common = ath5k_hw_common(sc->ah);
+ struct ath_cycle_counters *cc = &common->cc_survey;
+ unsigned int div = common->clockrate * 1000;
- if (idx != 0)
+ if (idx != 0)
return -ENOENT;
survey->channel = conf->channel;
survey->filled = SURVEY_INFO_NOISE_DBM;
survey->noise = sc->ah->ah_noise_floor;
+ spin_lock_bh(&common->cc_lock);
+ ath_hw_cycle_counters_update(common);
+ if (cc->cycles > 0) {
+ survey->filled |= SURVEY_INFO_CHANNEL_TIME |
+ SURVEY_INFO_CHANNEL_TIME_BUSY |
+ SURVEY_INFO_CHANNEL_TIME_RX |
+ SURVEY_INFO_CHANNEL_TIME_TX;
+ survey->channel_time += cc->cycles / div;
+ survey->channel_time_busy += cc->rx_busy / div;
+ survey->channel_time_rx += cc->rx_frame / div;
+ survey->channel_time_tx += cc->tx_frame / div;
+ }
+ memset(cc, 0, sizeof(*cc));
+ spin_unlock_bh(&common->cc_lock);
+
return 0;
}
return ret;
}
+static int ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+ struct ath5k_softc *sc = hw->priv;
+
+ if (tx_ant == 1 && rx_ant == 1)
+ ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
+ else if (tx_ant == 2 && rx_ant == 2)
+ ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
+ else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3)
+ ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static int ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+{
+ struct ath5k_softc *sc = hw->priv;
+
+ switch (sc->ah->ah_ant_mode) {
+ case AR5K_ANTMODE_FIXED_A:
+ *tx_ant = 1; *rx_ant = 1; break;
+ case AR5K_ANTMODE_FIXED_B:
+ *tx_ant = 2; *rx_ant = 2; break;
+ case AR5K_ANTMODE_DEFAULT:
+ *tx_ant = 3; *rx_ant = 3; break;
+ }
+ return 0;
+}
+
static const struct ieee80211_ops ath5k_hw_ops = {
.tx = ath5k_tx,
.start = ath5k_start,
.sw_scan_start = ath5k_sw_scan_start,
.sw_scan_complete = ath5k_sw_scan_complete,
.set_coverage_class = ath5k_set_coverage_class,
+ .set_antenna = ath5k_set_antenna,
+ .get_antenna = ath5k_get_antenna,
};
/********************\
git.openpandora.org / pandora-kernel.git / blobdiff