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path: root/drivers/net/wireless/ath/ath9k/main.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c1392
1 files changed, 716 insertions, 676 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index dac1a2709e3c..6049d8b82855 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -19,7 +19,10 @@
#include "ath9k.h"
#include "btcoex.h"
-static u8 parse_mpdudensity(u8 mpdudensity)
+static void ath9k_set_assoc_state(struct ath_softc *sc,
+ struct ieee80211_vif *vif);
+
+u8 ath9k_parse_mpdudensity(u8 mpdudensity)
{
/*
* 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
@@ -101,6 +104,7 @@ void ath9k_ps_wakeup(struct ath_softc *sc)
spin_lock(&common->cc_lock);
ath_hw_cycle_counters_update(common);
memset(&common->cc_survey, 0, sizeof(common->cc_survey));
+ memset(&common->cc_ani, 0, sizeof(common->cc_ani));
spin_unlock(&common->cc_lock);
}
@@ -129,6 +133,8 @@ void ath9k_ps_restore(struct ath_softc *sc)
PS_WAIT_FOR_PSPOLL_DATA |
PS_WAIT_FOR_TX_ACK))) {
mode = ATH9K_PM_NETWORK_SLEEP;
+ if (ath9k_hw_btcoex_is_enabled(sc->sc_ah))
+ ath9k_btcoex_stop_gen_timer(sc);
} else {
goto unlock;
}
@@ -143,90 +149,17 @@ void ath9k_ps_restore(struct ath_softc *sc)
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
}
-void ath_start_ani(struct ath_common *common)
-{
- struct ath_hw *ah = common->ah;
- unsigned long timestamp = jiffies_to_msecs(jiffies);
- struct ath_softc *sc = (struct ath_softc *) common->priv;
-
- if (!(sc->sc_flags & SC_OP_ANI_RUN))
- return;
-
- if (sc->sc_flags & SC_OP_OFFCHANNEL)
- return;
-
- common->ani.longcal_timer = timestamp;
- common->ani.shortcal_timer = timestamp;
- common->ani.checkani_timer = timestamp;
-
- mod_timer(&common->ani.timer,
- jiffies +
- msecs_to_jiffies((u32)ah->config.ani_poll_interval));
-}
-
-static void ath_update_survey_nf(struct ath_softc *sc, int channel)
-{
- struct ath_hw *ah = sc->sc_ah;
- struct ath9k_channel *chan = &ah->channels[channel];
- struct survey_info *survey = &sc->survey[channel];
-
- if (chan->noisefloor) {
- survey->filled |= SURVEY_INFO_NOISE_DBM;
- survey->noise = ath9k_hw_getchan_noise(ah, chan);
- }
-}
-
-/*
- * Updates the survey statistics and returns the busy time since last
- * update in %, if the measurement duration was long enough for the
- * result to be useful, -1 otherwise.
- */
-static int ath_update_survey_stats(struct ath_softc *sc)
-{
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- int pos = ah->curchan - &ah->channels[0];
- struct survey_info *survey = &sc->survey[pos];
- struct ath_cycle_counters *cc = &common->cc_survey;
- unsigned int div = common->clockrate * 1000;
- int ret = 0;
-
- if (!ah->curchan)
- return -1;
-
- if (ah->power_mode == ATH9K_PM_AWAKE)
- 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;
- }
-
- if (cc->cycles < div)
- return -1;
-
- if (cc->cycles > 0)
- ret = cc->rx_busy * 100 / cc->cycles;
-
- memset(cc, 0, sizeof(*cc));
-
- ath_update_survey_nf(sc, pos);
-
- return ret;
-}
-
static void __ath_cancel_work(struct ath_softc *sc)
{
cancel_work_sync(&sc->paprd_work);
cancel_work_sync(&sc->hw_check_work);
cancel_delayed_work_sync(&sc->tx_complete_work);
cancel_delayed_work_sync(&sc->hw_pll_work);
+
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+ if (ath9k_hw_mci_is_enabled(sc->sc_ah))
+ cancel_work_sync(&sc->mci_work);
+#endif
}
static void ath_cancel_work(struct ath_softc *sc)
@@ -235,16 +168,28 @@ static void ath_cancel_work(struct ath_softc *sc)
cancel_work_sync(&sc->hw_reset_work);
}
+static void ath_restart_work(struct ath_softc *sc)
+{
+ ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
+
+ if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9485(sc->sc_ah) ||
+ AR_SREV_9550(sc->sc_ah))
+ ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work,
+ msecs_to_jiffies(ATH_PLL_WORK_INTERVAL));
+
+ ath_start_rx_poll(sc, 3);
+ ath_start_ani(sc);
+}
+
static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush)
{
struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
bool ret = true;
ieee80211_stop_queues(sc->hw);
sc->hw_busy_count = 0;
- del_timer_sync(&common->ani.timer);
+ ath_stop_ani(sc);
del_timer_sync(&sc->rx_poll_timer);
ath9k_debug_samp_bb_mac(sc);
@@ -271,6 +216,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
+ unsigned long flags;
if (ath_startrecv(sc) != 0) {
ath_err(common, "Unable to restart recv logic\n");
@@ -279,36 +225,30 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
ath9k_cmn_update_txpow(ah, sc->curtxpow,
sc->config.txpowlimit, &sc->curtxpow);
+
+ clear_bit(SC_OP_HW_RESET, &sc->sc_flags);
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
- if (!(sc->sc_flags & (SC_OP_OFFCHANNEL)) && start) {
- if (sc->sc_flags & SC_OP_BEACONS)
- ath_set_beacon(sc);
-
- ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
- ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/2);
- ath_start_rx_poll(sc, 3);
- if (!common->disable_ani)
- ath_start_ani(common);
- }
-
- if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3) {
- struct ath_hw_antcomb_conf div_ant_conf;
- u8 lna_conf;
-
- ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
+ if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) {
+ if (!test_bit(SC_OP_BEACONS, &sc->sc_flags))
+ goto work;
- if (sc->ant_rx == 1)
- lna_conf = ATH_ANT_DIV_COMB_LNA1;
- else
- lna_conf = ATH_ANT_DIV_COMB_LNA2;
- div_ant_conf.main_lna_conf = lna_conf;
- div_ant_conf.alt_lna_conf = lna_conf;
+ ath9k_set_beacon(sc);
- ath9k_hw_antdiv_comb_conf_set(ah, &div_ant_conf);
+ if (ah->opmode == NL80211_IFTYPE_STATION &&
+ test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
+ spin_lock_irqsave(&sc->sc_pm_lock, flags);
+ sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+ }
+ work:
+ ath_restart_work(sc);
}
+ if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3)
+ ath_ant_comb_update(sc);
+
ieee80211_wake_queues(sc->hw);
return true;
@@ -328,7 +268,7 @@ static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan,
spin_lock_bh(&sc->sc_pcu_lock);
- if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) {
+ if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
fastcc = false;
caldata = &sc->caldata;
}
@@ -371,7 +311,7 @@ static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
{
int r;
- if (sc->sc_flags & SC_OP_INVALID)
+ if (test_bit(SC_OP_INVALID, &sc->sc_flags))
return -EIO;
r = ath_reset_internal(sc, hchan, false);
@@ -379,262 +319,11 @@ static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
return r;
}
-static void ath_paprd_activate(struct ath_softc *sc)
-{
- struct ath_hw *ah = sc->sc_ah;
- struct ath9k_hw_cal_data *caldata = ah->caldata;
- int chain;
-
- if (!caldata || !caldata->paprd_done)
- return;
-
- ath9k_ps_wakeup(sc);
- ar9003_paprd_enable(ah, false);
- for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
- if (!(ah->txchainmask & BIT(chain)))
- continue;
-
- ar9003_paprd_populate_single_table(ah, caldata, chain);
- }
-
- ar9003_paprd_enable(ah, true);
- ath9k_ps_restore(sc);
-}
-
-static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int chain)
-{
- struct ieee80211_hw *hw = sc->hw;
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- struct ath_tx_control txctl;
- int time_left;
-
- memset(&txctl, 0, sizeof(txctl));
- txctl.txq = sc->tx.txq_map[WME_AC_BE];
-
- memset(tx_info, 0, sizeof(*tx_info));
- tx_info->band = hw->conf.channel->band;
- tx_info->flags |= IEEE80211_TX_CTL_NO_ACK;
- tx_info->control.rates[0].idx = 0;
- tx_info->control.rates[0].count = 1;
- tx_info->control.rates[0].flags = IEEE80211_TX_RC_MCS;
- tx_info->control.rates[1].idx = -1;
-
- init_completion(&sc->paprd_complete);
- txctl.paprd = BIT(chain);
-
- if (ath_tx_start(hw, skb, &txctl) != 0) {
- ath_dbg(common, CALIBRATE, "PAPRD TX failed\n");
- dev_kfree_skb_any(skb);
- return false;
- }
-
- time_left = wait_for_completion_timeout(&sc->paprd_complete,
- msecs_to_jiffies(ATH_PAPRD_TIMEOUT));
-
- if (!time_left)
- ath_dbg(common, CALIBRATE,
- "Timeout waiting for paprd training on TX chain %d\n",
- chain);
-
- return !!time_left;
-}
-
-void ath_paprd_calibrate(struct work_struct *work)
-{
- struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work);
- struct ieee80211_hw *hw = sc->hw;
- struct ath_hw *ah = sc->sc_ah;
- struct ieee80211_hdr *hdr;
- struct sk_buff *skb = NULL;
- struct ath9k_hw_cal_data *caldata = ah->caldata;
- struct ath_common *common = ath9k_hw_common(ah);
- int ftype;
- int chain_ok = 0;
- int chain;
- int len = 1800;
-
- if (!caldata)
- return;
-
- ath9k_ps_wakeup(sc);
-
- if (ar9003_paprd_init_table(ah) < 0)
- goto fail_paprd;
-
- skb = alloc_skb(len, GFP_KERNEL);
- if (!skb)
- goto fail_paprd;
-
- skb_put(skb, len);
- memset(skb->data, 0, len);
- hdr = (struct ieee80211_hdr *)skb->data;
- ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC;
- hdr->frame_control = cpu_to_le16(ftype);
- hdr->duration_id = cpu_to_le16(10);
- memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN);
- memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN);
- memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
-
- for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
- if (!(ah->txchainmask & BIT(chain)))
- continue;
-
- chain_ok = 0;
-
- ath_dbg(common, CALIBRATE,
- "Sending PAPRD frame for thermal measurement on chain %d\n",
- chain);
- if (!ath_paprd_send_frame(sc, skb, chain))
- goto fail_paprd;
-
- ar9003_paprd_setup_gain_table(ah, chain);
-
- ath_dbg(common, CALIBRATE,
- "Sending PAPRD training frame on chain %d\n", chain);
- if (!ath_paprd_send_frame(sc, skb, chain))
- goto fail_paprd;
-
- if (!ar9003_paprd_is_done(ah)) {
- ath_dbg(common, CALIBRATE,
- "PAPRD not yet done on chain %d\n", chain);
- break;
- }
-
- if (ar9003_paprd_create_curve(ah, caldata, chain)) {
- ath_dbg(common, CALIBRATE,
- "PAPRD create curve failed on chain %d\n",
- chain);
- break;
- }
-
- chain_ok = 1;
- }
- kfree_skb(skb);
-
- if (chain_ok) {
- caldata->paprd_done = true;
- ath_paprd_activate(sc);
- }
-
-fail_paprd:
- ath9k_ps_restore(sc);
-}
-
-/*
- * This routine performs the periodic noise floor calibration function
- * that is used to adjust and optimize the chip performance. This
- * takes environmental changes (location, temperature) into account.
- * When the task is complete, it reschedules itself depending on the
- * appropriate interval that was calculated.
- */
-void ath_ani_calibrate(unsigned long data)
-{
- struct ath_softc *sc = (struct ath_softc *)data;
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- bool longcal = false;
- bool shortcal = false;
- bool aniflag = false;
- unsigned int timestamp = jiffies_to_msecs(jiffies);
- u32 cal_interval, short_cal_interval, long_cal_interval;
- unsigned long flags;
-
- if (ah->caldata && ah->caldata->nfcal_interference)
- long_cal_interval = ATH_LONG_CALINTERVAL_INT;
- else
- long_cal_interval = ATH_LONG_CALINTERVAL;
-
- short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
- ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
-
- /* Only calibrate if awake */
- if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE)
- goto set_timer;
-
- ath9k_ps_wakeup(sc);
-
- /* Long calibration runs independently of short calibration. */
- if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) {
- longcal = true;
- common->ani.longcal_timer = timestamp;
- }
-
- /* Short calibration applies only while caldone is false */
- if (!common->ani.caldone) {
- if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) {
- shortcal = true;
- common->ani.shortcal_timer = timestamp;
- common->ani.resetcal_timer = timestamp;
- }
- } else {
- if ((timestamp - common->ani.resetcal_timer) >=
- ATH_RESTART_CALINTERVAL) {
- common->ani.caldone = ath9k_hw_reset_calvalid(ah);
- if (common->ani.caldone)
- common->ani.resetcal_timer = timestamp;
- }
- }
-
- /* Verify whether we must check ANI */
- if (sc->sc_ah->config.enable_ani
- && (timestamp - common->ani.checkani_timer) >=
- ah->config.ani_poll_interval) {
- aniflag = true;
- common->ani.checkani_timer = timestamp;
- }
-
- /* Call ANI routine if necessary */
- if (aniflag) {
- spin_lock_irqsave(&common->cc_lock, flags);
- ath9k_hw_ani_monitor(ah, ah->curchan);
- ath_update_survey_stats(sc);
- spin_unlock_irqrestore(&common->cc_lock, flags);
- }
-
- /* Perform calibration if necessary */
- if (longcal || shortcal) {
- common->ani.caldone =
- ath9k_hw_calibrate(ah, ah->curchan,
- ah->rxchainmask, longcal);
- }
-
- ath_dbg(common, ANI,
- "Calibration @%lu finished: %s %s %s, caldone: %s\n",
- jiffies,
- longcal ? "long" : "", shortcal ? "short" : "",
- aniflag ? "ani" : "", common->ani.caldone ? "true" : "false");
-
- ath9k_ps_restore(sc);
-
-set_timer:
- /*
- * Set timer interval based on previous results.
- * The interval must be the shortest necessary to satisfy ANI,
- * short calibration and long calibration.
- */
- ath9k_debug_samp_bb_mac(sc);
- cal_interval = ATH_LONG_CALINTERVAL;
- if (sc->sc_ah->config.enable_ani)
- cal_interval = min(cal_interval,
- (u32)ah->config.ani_poll_interval);
- if (!common->ani.caldone)
- cal_interval = min(cal_interval, (u32)short_cal_interval);
-
- mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) {
- if (!ah->caldata->paprd_done)
- ieee80211_queue_work(sc->hw, &sc->paprd_work);
- else if (!ah->paprd_table_write_done)
- ath_paprd_activate(sc);
- }
-}
-
static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
struct ieee80211_vif *vif)
{
struct ath_node *an;
+ u8 density;
an = (struct ath_node *)sta->drv_priv;
#ifdef CONFIG_ATH9K_DEBUGFS
@@ -649,7 +338,8 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
ath_tx_node_init(sc, an);
an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
sta->ht_cap.ampdu_factor);
- an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density);
+ density = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
+ an->mpdudensity = density;
}
}
@@ -668,13 +358,13 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
ath_tx_node_cleanup(sc, an);
}
-
void ath9k_tasklet(unsigned long data)
{
struct ath_softc *sc = (struct ath_softc *)data;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
-
+ enum ath_reset_type type;
+ unsigned long flags;
u32 status = sc->intrstatus;
u32 rxmask;
@@ -683,20 +373,17 @@ void ath9k_tasklet(unsigned long data)
if ((status & ATH9K_INT_FATAL) ||
(status & ATH9K_INT_BB_WATCHDOG)) {
-#ifdef CONFIG_ATH9K_DEBUGFS
- enum ath_reset_type type;
if (status & ATH9K_INT_FATAL)
type = RESET_TYPE_FATAL_INT;
else
type = RESET_TYPE_BB_WATCHDOG;
- RESET_STAT_INC(sc, type);
-#endif
- ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
+ ath9k_queue_reset(sc, type);
goto out;
}
+ spin_lock_irqsave(&sc->sc_pm_lock, flags);
if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
/*
* TSF sync does not look correct; remain awake to sync with
@@ -705,6 +392,7 @@ void ath9k_tasklet(unsigned long data)
ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
}
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
@@ -766,15 +454,17 @@ irqreturn_t ath_isr(int irq, void *dev)
* touch anything. Note this can happen early
* on if the IRQ is shared.
*/
- if (sc->sc_flags & SC_OP_INVALID)
+ if (test_bit(SC_OP_INVALID, &sc->sc_flags))
return IRQ_NONE;
-
/* shared irq, not for us */
if (!ath9k_hw_intrpend(ah))
return IRQ_NONE;
+ if(test_bit(SC_OP_HW_RESET, &sc->sc_flags))
+ return IRQ_HANDLED;
+
/*
* Figure out the reason(s) for the interrupt. Note
* that the hal returns a pseudo-ISR that may include
@@ -797,6 +487,17 @@ irqreturn_t ath_isr(int irq, void *dev)
if (status & SCHED_INTR)
sched = true;
+#ifdef CONFIG_PM_SLEEP
+ if (status & ATH9K_INT_BMISS) {
+ if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
+ ath_dbg(common, ANY, "during WoW we got a BMISS\n");
+ atomic_inc(&sc->wow_got_bmiss_intr);
+ atomic_dec(&sc->wow_sleep_proc_intr);
+ }
+ ath_dbg(common, INTERRUPT, "beacon miss interrupt\n");
+ }
+#endif
+
/*
* If a FATAL or RXORN interrupt is received, we have to reset the
* chip immediately.
@@ -827,24 +528,6 @@ irqreturn_t ath_isr(int irq, void *dev)
ath9k_hw_set_interrupts(ah);
}
- if (status & ATH9K_INT_MIB) {
- /*
- * Disable interrupts until we service the MIB
- * interrupt; otherwise it will continue to
- * fire.
- */
- ath9k_hw_disable_interrupts(ah);
- /*
- * Let the hal handle the event. We assume
- * it will clear whatever condition caused
- * the interrupt.
- */
- spin_lock(&common->cc_lock);
- ath9k_hw_proc_mib_event(ah);
- spin_unlock(&common->cc_lock);
- ath9k_hw_enable_interrupts(ah);
- }
-
if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
if (status & ATH9K_INT_TIM_TIMER) {
if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
@@ -852,8 +535,10 @@ irqreturn_t ath_isr(int irq, void *dev)
/* Clear RxAbort bit so that we can
* receive frames */
ath9k_setpower(sc, ATH9K_PM_AWAKE);
+ spin_lock(&sc->sc_pm_lock);
ath9k_hw_setrxabort(sc->sc_ah, 0);
sc->ps_flags |= PS_WAIT_FOR_BEACON;
+ spin_unlock(&sc->sc_pm_lock);
}
chip_reset:
@@ -895,101 +580,20 @@ static int ath_reset(struct ath_softc *sc, bool retry_tx)
return r;
}
-void ath_reset_work(struct work_struct *work)
+void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
{
- struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
-
- ath_reset(sc, true);
-}
-
-void ath_hw_check(struct work_struct *work)
-{
- struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work);
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- unsigned long flags;
- int busy;
- u8 is_alive, nbeacon = 1;
-
- ath9k_ps_wakeup(sc);
- is_alive = ath9k_hw_check_alive(sc->sc_ah);
-
- if (is_alive && !AR_SREV_9300(sc->sc_ah))
- goto out;
- else if (!is_alive && AR_SREV_9300(sc->sc_ah)) {
- ath_dbg(common, RESET,
- "DCU stuck is detected. Schedule chip reset\n");
- RESET_STAT_INC(sc, RESET_TYPE_MAC_HANG);
- goto sched_reset;
- }
-
- spin_lock_irqsave(&common->cc_lock, flags);
- busy = ath_update_survey_stats(sc);
- spin_unlock_irqrestore(&common->cc_lock, flags);
-
- ath_dbg(common, RESET, "Possible baseband hang, busy=%d (try %d)\n",
- busy, sc->hw_busy_count + 1);
- if (busy >= 99) {
- if (++sc->hw_busy_count >= 3) {
- RESET_STAT_INC(sc, RESET_TYPE_BB_HANG);
- goto sched_reset;
- }
- } else if (busy >= 0) {
- sc->hw_busy_count = 0;
- nbeacon = 3;
- }
-
- ath_start_rx_poll(sc, nbeacon);
- goto out;
-
-sched_reset:
+#ifdef CONFIG_ATH9K_DEBUGFS
+ RESET_STAT_INC(sc, type);
+#endif
+ set_bit(SC_OP_HW_RESET, &sc->sc_flags);
ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
-out:
- ath9k_ps_restore(sc);
-}
-
-static void ath_hw_pll_rx_hang_check(struct ath_softc *sc, u32 pll_sqsum)
-{
- static int count;
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-
- if (pll_sqsum >= 0x40000) {
- count++;
- if (count == 3) {
- /* Rx is hung for more than 500ms. Reset it */
- ath_dbg(common, RESET, "Possible RX hang, resetting\n");
- RESET_STAT_INC(sc, RESET_TYPE_PLL_HANG);
- ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
- count = 0;
- }
- } else
- count = 0;
}
-void ath_hw_pll_work(struct work_struct *work)
+void ath_reset_work(struct work_struct *work)
{
- struct ath_softc *sc = container_of(work, struct ath_softc,
- hw_pll_work.work);
- u32 pll_sqsum;
-
- /*
- * ensure that the PLL WAR is executed only
- * after the STA is associated (or) if the
- * beaconing had started in interfaces that
- * uses beacons.
- */
- if (!(sc->sc_flags & SC_OP_BEACONS))
- return;
-
- if (AR_SREV_9485(sc->sc_ah)) {
-
- ath9k_ps_wakeup(sc);
- pll_sqsum = ar9003_get_pll_sqsum_dvc(sc->sc_ah);
- ath9k_ps_restore(sc);
-
- ath_hw_pll_rx_hang_check(sc, pll_sqsum);
+ struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
- ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/5);
- }
+ ath_reset(sc, true);
}
/**********************/
@@ -1054,10 +658,9 @@ static int ath9k_start(struct ieee80211_hw *hw)
if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
ah->imask |= ATH9K_INT_CST;
- if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
- ah->imask |= ATH9K_INT_MCI;
+ ath_mci_enable(sc);
- sc->sc_flags &= ~SC_OP_INVALID;
+ clear_bit(SC_OP_INVALID, &sc->sc_flags);
sc->sc_ah->is_monitoring = false;
if (!ath_complete_reset(sc, false)) {
@@ -1080,8 +683,6 @@ static int ath9k_start(struct ieee80211_hw *hw)
spin_unlock_bh(&sc->sc_pcu_lock);
- ath9k_start_btcoex(sc);
-
if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en)
common->bus_ops->extn_synch_en(common);
@@ -1099,6 +700,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_tx_control txctl;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ unsigned long flags;
if (sc->ps_enabled) {
/*
@@ -1121,6 +723,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
* completed and if needed, also for RX of buffered frames.
*/
ath9k_ps_wakeup(sc);
+ spin_lock_irqsave(&sc->sc_pm_lock, flags);
if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
ath9k_hw_setrxabort(sc->sc_ah, 0);
if (ieee80211_is_pspoll(hdr->frame_control)) {
@@ -1136,6 +739,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
* the ps_flags bit is cleared. We are just dropping
* the ps_usecount here.
*/
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
ath9k_ps_restore(sc);
}
@@ -1176,7 +780,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
ath_cancel_work(sc);
del_timer_sync(&sc->rx_poll_timer);
- if (sc->sc_flags & SC_OP_INVALID) {
+ if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
ath_dbg(common, ANY, "Device not present\n");
mutex_unlock(&sc->mutex);
return;
@@ -1185,8 +789,6 @@ static void ath9k_stop(struct ieee80211_hw *hw)
/* Ensure HW is awake when we try to shut it down. */
ath9k_ps_wakeup(sc);
- ath9k_stop_btcoex(sc);
-
spin_lock_bh(&sc->sc_pcu_lock);
/* prevent tasklets to enable interrupts once we disable them */
@@ -1233,7 +835,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
ath9k_ps_restore(sc);
- sc->sc_flags |= SC_OP_INVALID;
+ set_bit(SC_OP_INVALID, &sc->sc_flags);
sc->ps_idle = prev_idle;
mutex_unlock(&sc->mutex);
@@ -1253,16 +855,6 @@ bool ath9k_uses_beacons(int type)
}
}
-static void ath9k_reclaim_beacon(struct ath_softc *sc,
- struct ieee80211_vif *vif)
-{
- struct ath_vif *avp = (void *)vif->drv_priv;
-
- ath9k_set_beaconing_status(sc, false);
- ath_beacon_return(sc, avp);
- ath9k_set_beaconing_status(sc, true);
-}
-
static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
struct ath9k_vif_iter_data *iter_data = data;
@@ -1294,6 +886,18 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
}
}
+static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+ struct ath_softc *sc = data;
+ struct ath_vif *avp = (void *)vif->drv_priv;
+
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return;
+
+ if (avp->primary_sta_vif)
+ ath9k_set_assoc_state(sc, vif);
+}
+
/* Called with sc->mutex held. */
void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
@@ -1327,21 +931,18 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_vif_iter_data iter_data;
+ enum nl80211_iftype old_opmode = ah->opmode;
ath9k_calculate_iter_data(hw, vif, &iter_data);
- /* Set BSSID mask. */
memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
ath_hw_setbssidmask(common);
- /* Set op-mode & TSF */
if (iter_data.naps > 0) {
- ath9k_hw_set_tsfadjust(ah, 1);
- sc->sc_flags |= SC_OP_TSF_RESET;
+ ath9k_hw_set_tsfadjust(ah, true);
ah->opmode = NL80211_IFTYPE_AP;
} else {
- ath9k_hw_set_tsfadjust(ah, 0);
- sc->sc_flags &= ~SC_OP_TSF_RESET;
+ ath9k_hw_set_tsfadjust(ah, false);
if (iter_data.nmeshes)
ah->opmode = NL80211_IFTYPE_MESH_POINT;
@@ -1353,70 +954,27 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
ah->opmode = NL80211_IFTYPE_STATION;
}
- /*
- * Enable MIB interrupts when there are hardware phy counters.
- */
- if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0) {
- if (ah->config.enable_ani)
- ah->imask |= ATH9K_INT_MIB;
+ ath9k_hw_setopmode(ah);
+
+ if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
ah->imask |= ATH9K_INT_TSFOOR;
- } else {
- ah->imask &= ~ATH9K_INT_MIB;
+ else
ah->imask &= ~ATH9K_INT_TSFOOR;
- }
ath9k_hw_set_interrupts(ah);
- /* Set up ANI */
- if (iter_data.naps > 0) {
- sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
-
- if (!common->disable_ani) {
- sc->sc_flags |= SC_OP_ANI_RUN;
- ath_start_ani(common);
- }
-
- } else {
- sc->sc_flags &= ~SC_OP_ANI_RUN;
- del_timer_sync(&common->ani.timer);
- }
-}
-
-/* Called with sc->mutex held, vif counts set up properly. */
-static void ath9k_do_vif_add_setup(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct ath_softc *sc = hw->priv;
-
- ath9k_calculate_summary_state(hw, vif);
-
- if (ath9k_uses_beacons(vif->type)) {
- /* Reserve a beacon slot for the vif */
- ath9k_set_beaconing_status(sc, false);
- ath_beacon_alloc(sc, vif);
- ath9k_set_beaconing_status(sc, true);
+ /*
+ * If we are changing the opmode to STATION,
+ * a beacon sync needs to be done.
+ */
+ if (ah->opmode == NL80211_IFTYPE_STATION &&
+ old_opmode == NL80211_IFTYPE_AP &&
+ test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
+ ieee80211_iterate_active_interfaces_atomic(sc->hw,
+ ath9k_sta_vif_iter, sc);
}
}
-void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon)
-{
- if (!AR_SREV_9300(sc->sc_ah))
- return;
-
- if (!(sc->sc_flags & SC_OP_PRIM_STA_VIF))
- return;
-
- mod_timer(&sc->rx_poll_timer, jiffies + msecs_to_jiffies
- (nbeacon * sc->cur_beacon_conf.beacon_interval));
-}
-
-void ath_rx_poll(unsigned long data)
-{
- struct ath_softc *sc = (struct ath_softc *)data;
-
- ieee80211_queue_work(sc->hw, &sc->hw_check_work);
-}
-
static int ath9k_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -1456,7 +1014,10 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
sc->nvifs++;
- ath9k_do_vif_add_setup(hw, vif);
+ ath9k_calculate_summary_state(hw, vif);
+ if (ath9k_uses_beacons(vif->type))
+ ath9k_beacon_assign_slot(sc, vif);
+
out:
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
@@ -1473,6 +1034,7 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
int ret = 0;
ath_dbg(common, CONFIG, "Change Interface\n");
+
mutex_lock(&sc->mutex);
ath9k_ps_wakeup(sc);
@@ -1485,15 +1047,16 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
}
}
- /* Clean up old vif stuff */
if (ath9k_uses_beacons(vif->type))
- ath9k_reclaim_beacon(sc, vif);
+ ath9k_beacon_remove_slot(sc, vif);
- /* Add new settings */
vif->type = new_type;
vif->p2p = p2p;
- ath9k_do_vif_add_setup(hw, vif);
+ ath9k_calculate_summary_state(hw, vif);
+ if (ath9k_uses_beacons(vif->type))
+ ath9k_beacon_assign_slot(sc, vif);
+
out:
ath9k_ps_restore(sc);
mutex_unlock(&sc->mutex);
@@ -1513,9 +1076,8 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
sc->nvifs--;
- /* Reclaim beacon resources */
if (ath9k_uses_beacons(vif->type))
- ath9k_reclaim_beacon(sc, vif);
+ ath9k_beacon_remove_slot(sc, vif);
ath9k_calculate_summary_state(hw, NULL);
@@ -1573,14 +1135,17 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
- if (sc->ps_idle)
+ if (sc->ps_idle) {
ath_cancel_work(sc);
- else
+ ath9k_stop_btcoex(sc);
+ } else {
+ ath9k_start_btcoex(sc);
/*
* The chip needs a reset to properly wake up from
* full sleep
*/
reset_channel = ah->chip_fullsleep;
+ }
}
/*
@@ -1618,11 +1183,6 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (ah->curchan)
old_pos = ah->curchan - &ah->channels[0];
- if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
- sc->sc_flags |= SC_OP_OFFCHANNEL;
- else
- sc->sc_flags &= ~SC_OP_OFFCHANNEL;
-
ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n",
curchan->center_freq, conf->channel_type);
@@ -1664,6 +1224,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
ath_err(common, "Unable to set channel\n");
mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);
return -EINVAL;
}
@@ -1813,21 +1374,18 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw,
qi.tqi_aifs = params->aifs;
qi.tqi_cwmin = params->cw_min;
qi.tqi_cwmax = params->cw_max;
- qi.tqi_burstTime = params->txop;
+ qi.tqi_burstTime = params->txop * 32;
ath_dbg(common, CONFIG,
"Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
queue, txq->axq_qnum, params->aifs, params->cw_min,
params->cw_max, params->txop);
+ ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
ret = ath_txq_update(sc, txq->axq_qnum, &qi);
if (ret)
ath_err(common, "TXQ Update failed\n");
- if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)
- if (queue == WME_AC_BE && !ret)
- ath_beaconq_config(sc);
-
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
@@ -1896,83 +1454,53 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
return ret;
}
-static void ath9k_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+
+static void ath9k_set_assoc_state(struct ath_softc *sc,
+ struct ieee80211_vif *vif)
{
- struct ath_softc *sc = data;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
struct ath_vif *avp = (void *)vif->drv_priv;
+ struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+ unsigned long flags;
+
+ set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
+ avp->primary_sta_vif = true;
/*
- * Skip iteration if primary station vif's bss info
- * was not changed
+ * Set the AID, BSSID and do beacon-sync only when
+ * the HW opmode is STATION.
+ *
+ * But the primary bit is set above in any case.
*/
- if (sc->sc_flags & SC_OP_PRIM_STA_VIF)
+ if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
return;
- if (bss_conf->assoc) {
- sc->sc_flags |= SC_OP_PRIM_STA_VIF;
- avp->primary_sta_vif = true;
- memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
- common->curaid = bss_conf->aid;
- ath9k_hw_write_associd(sc->sc_ah);
- ath_dbg(common, CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
- bss_conf->aid, common->curbssid);
- ath_beacon_config(sc, vif);
- /*
- * Request a re-configuration of Beacon related timers
- * on the receipt of the first Beacon frame (i.e.,
- * after time sync with the AP).
- */
- sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
- /* Reset rssi stats */
- sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
- sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
+ memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
+ common->curaid = bss_conf->aid;
+ ath9k_hw_write_associd(sc->sc_ah);
- ath_start_rx_poll(sc, 3);
+ sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
+ sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
- if (!common->disable_ani) {
- sc->sc_flags |= SC_OP_ANI_RUN;
- ath_start_ani(common);
- }
+ spin_lock_irqsave(&sc->sc_pm_lock, flags);
+ sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
- }
+ ath_dbg(common, CONFIG,
+ "Primary Station interface: %pM, BSSID: %pM\n",
+ vif->addr, common->curbssid);
}
-static void ath9k_config_bss(struct ath_softc *sc, struct ieee80211_vif *vif)
+static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_softc *sc = data;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
- struct ath_vif *avp = (void *)vif->drv_priv;
- if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
+ if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
return;
- /* Reconfigure bss info */
- if (avp->primary_sta_vif && !bss_conf->assoc) {
- ath_dbg(common, CONFIG, "Bss Info DISASSOC %d, bssid %pM\n",
- common->curaid, common->curbssid);
- sc->sc_flags &= ~(SC_OP_PRIM_STA_VIF | SC_OP_BEACONS);
- avp->primary_sta_vif = false;
- memset(common->curbssid, 0, ETH_ALEN);
- common->curaid = 0;
- }
-
- ieee80211_iterate_active_interfaces_atomic(
- sc->hw, ath9k_bss_iter, sc);
-
- /*
- * None of station vifs are associated.
- * Clear bssid & aid
- */
- if (!(sc->sc_flags & SC_OP_PRIM_STA_VIF)) {
- ath9k_hw_write_associd(sc->sc_ah);
- /* Stop ANI */
- sc->sc_flags &= ~SC_OP_ANI_RUN;
- del_timer_sync(&common->ani.timer);
- del_timer_sync(&sc->rx_poll_timer);
- memset(&sc->caldata, 0, sizeof(sc->caldata));
- }
+ if (bss_conf->assoc)
+ ath9k_set_assoc_state(sc, vif);
}
static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
@@ -1980,6 +1508,11 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_bss_conf *bss_conf,
u32 changed)
{
+#define CHECK_ANI \
+ (BSS_CHANGED_ASSOC | \
+ BSS_CHANGED_IBSS | \
+ BSS_CHANGED_BEACON_ENABLED)
+
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
@@ -1990,53 +1523,41 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
mutex_lock(&sc->mutex);
if (changed & BSS_CHANGED_ASSOC) {
- ath9k_config_bss(sc, vif);
+ ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
+ bss_conf->bssid, bss_conf->assoc);
+
+ if (avp->primary_sta_vif && !bss_conf->assoc) {
+ clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
+ avp->primary_sta_vif = false;
- ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n",
- common->curbssid, common->curaid);
+ if (ah->opmode == NL80211_IFTYPE_STATION)
+ clear_bit(SC_OP_BEACONS, &sc->sc_flags);
+ }
+
+ ieee80211_iterate_active_interfaces_atomic(sc->hw,
+ ath9k_bss_assoc_iter, sc);
+
+ if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
+ ah->opmode == NL80211_IFTYPE_STATION) {
+ memset(common->curbssid, 0, ETH_ALEN);
+ common->curaid = 0;
+ ath9k_hw_write_associd(sc->sc_ah);
+ }
}
if (changed & BSS_CHANGED_IBSS) {
- /* There can be only one vif available */
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
common->curaid = bss_conf->aid;
ath9k_hw_write_associd(sc->sc_ah);
-
- if (bss_conf->ibss_joined) {
- sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
-
- if (!common->disable_ani) {
- sc->sc_flags |= SC_OP_ANI_RUN;
- ath_start_ani(common);
- }
-
- } else {
- sc->sc_flags &= ~SC_OP_ANI_RUN;
- del_timer_sync(&common->ani.timer);
- del_timer_sync(&sc->rx_poll_timer);
- }
}
- /*
- * In case of AP mode, the HW TSF has to be reset
- * when the beacon interval changes.
- */
- if ((changed & BSS_CHANGED_BEACON_INT) &&
- (vif->type == NL80211_IFTYPE_AP))
- sc->sc_flags |= SC_OP_TSF_RESET;
-
- /* Configure beaconing (AP, IBSS, MESH) */
- if (ath9k_uses_beacons(vif->type) &&
- ((changed & BSS_CHANGED_BEACON) ||
- (changed & BSS_CHANGED_BEACON_ENABLED) ||
- (changed & BSS_CHANGED_BEACON_INT))) {
- ath9k_set_beaconing_status(sc, false);
- if (bss_conf->enable_beacon)
- ath_beacon_alloc(sc, vif);
- else
- avp->is_bslot_active = false;
- ath_beacon_config(sc, vif);
- ath9k_set_beaconing_status(sc, true);
+ if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
+ (changed & BSS_CHANGED_BEACON_INT)) {
+ if (ah->opmode == NL80211_IFTYPE_AP &&
+ bss_conf->enable_beacon)
+ ath9k_set_tsfadjust(sc, vif);
+ if (ath9k_allow_beacon_config(sc, vif))
+ ath9k_beacon_config(sc, vif, changed);
}
if (changed & BSS_CHANGED_ERP_SLOT) {
@@ -2058,8 +1579,13 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}
}
+ if (changed & CHECK_ANI)
+ ath_check_ani(sc);
+
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
+
+#undef CHECK_ANI
}
static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
@@ -2215,7 +1741,7 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
return;
}
- if (sc->sc_flags & SC_OP_INVALID) {
+ if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
ath_dbg(common, ANY, "Device not present\n");
mutex_unlock(&sc->mutex);
return;
@@ -2288,10 +1814,11 @@ static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
if (!vif)
return 0;
- avp = (void *)vif->drv_priv;
- if (!avp->is_bslot_active)
+ if (!vif->bss_conf.enable_beacon)
return 0;
+ avp = (void *)vif->drv_priv;
+
if (!sc->beacon.tx_processed && !edma) {
tasklet_disable(&sc->bcon_tasklet);
@@ -2345,12 +1872,29 @@ static u32 fill_chainmask(u32 cap, u32 new)
return filled;
}
+static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
+{
+ switch (val & 0x7) {
+ case 0x1:
+ case 0x3:
+ case 0x7:
+ return true;
+ case 0x2:
+ return (ah->caps.rx_chainmask == 1);
+ default:
+ return false;
+ }
+}
+
static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
{
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
- if (!rx_ant || !tx_ant)
+ if (ah->caps.rx_chainmask != 1)
+ rx_ant |= tx_ant;
+
+ if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
return -EINVAL;
sc->ant_rx = rx_ant;
@@ -2380,6 +1924,490 @@ static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
return 0;
}
+#ifdef CONFIG_ATH9K_DEBUGFS
+
+/* Ethtool support for get-stats */
+
+#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
+static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
+ "tx_pkts_nic",
+ "tx_bytes_nic",
+ "rx_pkts_nic",
+ "rx_bytes_nic",
+ AMKSTR(d_tx_pkts),
+ AMKSTR(d_tx_bytes),
+ AMKSTR(d_tx_mpdus_queued),
+ AMKSTR(d_tx_mpdus_completed),
+ AMKSTR(d_tx_mpdu_xretries),
+ AMKSTR(d_tx_aggregates),
+ AMKSTR(d_tx_ampdus_queued_hw),
+ AMKSTR(d_tx_ampdus_queued_sw),
+ AMKSTR(d_tx_ampdus_completed),
+ AMKSTR(d_tx_ampdu_retries),
+ AMKSTR(d_tx_ampdu_xretries),
+ AMKSTR(d_tx_fifo_underrun),
+ AMKSTR(d_tx_op_exceeded),
+ AMKSTR(d_tx_timer_expiry),
+ AMKSTR(d_tx_desc_cfg_err),
+ AMKSTR(d_tx_data_underrun),
+ AMKSTR(d_tx_delim_underrun),
+
+ "d_rx_decrypt_crc_err",
+ "d_rx_phy_err",
+ "d_rx_mic_err",
+ "d_rx_pre_delim_crc_err",
+ "d_rx_post_delim_crc_err",
+ "d_rx_decrypt_busy_err",
+
+ "d_rx_phyerr_radar",
+ "d_rx_phyerr_ofdm_timing",
+ "d_rx_phyerr_cck_timing",
+
+};
+#define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
+
+static void ath9k_get_et_strings(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u32 sset, u8 *data)
+{
+ if (sset == ETH_SS_STATS)
+ memcpy(data, *ath9k_gstrings_stats,
+ sizeof(ath9k_gstrings_stats));
+}
+
+static int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, int sset)
+{
+ if (sset == ETH_SS_STATS)
+ return ATH9K_SSTATS_LEN;
+ return 0;
+}
+
+#define PR_QNUM(_n) (sc->tx.txq_map[_n]->axq_qnum)
+#define AWDATA(elem) \
+ do { \
+ data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem; \
+ data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem; \
+ data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem; \
+ data[i++] = sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem; \
+ } while (0)
+
+#define AWDATA_RX(elem) \
+ do { \
+ data[i++] = sc->debug.stats.rxstats.elem; \
+ } while (0)
+
+static void ath9k_get_et_stats(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct ath_softc *sc = hw->priv;
+ int i = 0;
+
+ data[i++] = (sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].tx_pkts_all +
+ sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].tx_pkts_all +
+ sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].tx_pkts_all +
+ sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].tx_pkts_all);
+ data[i++] = (sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].tx_bytes_all +
+ sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].tx_bytes_all +
+ sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].tx_bytes_all +
+ sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].tx_bytes_all);
+ AWDATA_RX(rx_pkts_all);
+ AWDATA_RX(rx_bytes_all);
+
+ AWDATA(tx_pkts_all);
+ AWDATA(tx_bytes_all);
+ AWDATA(queued);
+ AWDATA(completed);
+ AWDATA(xretries);
+ AWDATA(a_aggr);
+ AWDATA(a_queued_hw);
+ AWDATA(a_queued_sw);
+ AWDATA(a_completed);
+ AWDATA(a_retries);
+ AWDATA(a_xretries);
+ AWDATA(fifo_underrun);
+ AWDATA(xtxop);
+ AWDATA(timer_exp);
+ AWDATA(desc_cfg_err);
+ AWDATA(data_underrun);
+ AWDATA(delim_underrun);
+
+ AWDATA_RX(decrypt_crc_err);
+ AWDATA_RX(phy_err);
+ AWDATA_RX(mic_err);
+ AWDATA_RX(pre_delim_crc_err);
+ AWDATA_RX(post_delim_crc_err);
+ AWDATA_RX(decrypt_busy_err);
+
+ AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
+ AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
+ AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
+
+ WARN_ON(i != ATH9K_SSTATS_LEN);
+}
+
+/* End of ethtool get-stats functions */
+
+#endif
+
+
+#ifdef CONFIG_PM_SLEEP
+
+static void ath9k_wow_map_triggers(struct ath_softc *sc,
+ struct cfg80211_wowlan *wowlan,
+ u32 *wow_triggers)
+{
+ if (wowlan->disconnect)
+ *wow_triggers |= AH_WOW_LINK_CHANGE |
+ AH_WOW_BEACON_MISS;
+ if (wowlan->magic_pkt)
+ *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
+
+ if (wowlan->n_patterns)
+ *wow_triggers |= AH_WOW_USER_PATTERN_EN;
+
+ sc->wow_enabled = *wow_triggers;
+
+}
+
+static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_hw_capabilities *pcaps = &ah->caps;
+ int pattern_count = 0;
+ int i, byte_cnt;
+ u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
+ u8 dis_deauth_mask[MAX_PATTERN_SIZE];
+
+ memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
+ memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
+
+ /*
+ * Create Dissassociate / Deauthenticate packet filter
+ *
+ * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
+ * +--------------+----------+---------+--------+--------+----
+ * + Frame Control+ Duration + DA + SA + BSSID +
+ * +--------------+----------+---------+--------+--------+----
+ *
+ * The above is the management frame format for disassociate/
+ * deauthenticate pattern, from this we need to match the first byte
+ * of 'Frame Control' and DA, SA, and BSSID fields
+ * (skipping 2nd byte of FC and Duration feild.
+ *
+ * Disassociate pattern
+ * --------------------
+ * Frame control = 00 00 1010
+ * DA, SA, BSSID = x:x:x:x:x:x
+ * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
+ * | x:x:x:x:x:x -- 22 bytes
+ *
+ * Deauthenticate pattern
+ * ----------------------
+ * Frame control = 00 00 1100
+ * DA, SA, BSSID = x:x:x:x:x:x
+ * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
+ * | x:x:x:x:x:x -- 22 bytes
+ */
+
+ /* Create Disassociate Pattern first */
+
+ byte_cnt = 0;
+
+ /* Fill out the mask with all FF's */
+
+ for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
+ dis_deauth_mask[i] = 0xff;
+
+ /* copy the first byte of frame control field */
+ dis_deauth_pattern[byte_cnt] = 0xa0;
+ byte_cnt++;
+
+ /* skip 2nd byte of frame control and Duration field */
+ byte_cnt += 3;
+
+ /*
+ * need not match the destination mac address, it can be a broadcast
+ * mac address or an unicast to this station
+ */
+ byte_cnt += 6;
+
+ /* copy the source mac address */
+ memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
+
+ byte_cnt += 6;
+
+ /* copy the bssid, its same as the source mac address */
+
+ memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
+
+ /* Create Disassociate pattern mask */
+
+ if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_EXACT) {
+
+ if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_DWORD) {
+ /*
+ * for AR9280, because of hardware limitation, the
+ * first 4 bytes have to be matched for all patterns.
+ * the mask for disassociation and de-auth pattern
+ * matching need to enable the first 4 bytes.
+ * also the duration field needs to be filled.
+ */
+ dis_deauth_mask[0] = 0xf0;
+
+ /*
+ * fill in duration field
+ FIXME: what is the exact value ?
+ */
+ dis_deauth_pattern[2] = 0xff;
+ dis_deauth_pattern[3] = 0xff;
+ } else {
+ dis_deauth_mask[0] = 0xfe;
+ }
+
+ dis_deauth_mask[1] = 0x03;
+ dis_deauth_mask[2] = 0xc0;
+ } else {
+ dis_deauth_mask[0] = 0xef;
+ dis_deauth_mask[1] = 0x3f;
+ dis_deauth_mask[2] = 0x00;
+ dis_deauth_mask[3] = 0xfc;
+ }
+
+ ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
+
+ ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
+ pattern_count, byte_cnt);
+
+ pattern_count++;
+ /*
+ * for de-authenticate pattern, only the first byte of the frame
+ * control field gets changed from 0xA0 to 0xC0
+ */
+ dis_deauth_pattern[0] = 0xC0;
+
+ ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
+ pattern_count, byte_cnt);
+
+}
+
+static void ath9k_wow_add_pattern(struct ath_softc *sc,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath9k_wow_pattern *wow_pattern = NULL;
+ struct cfg80211_wowlan_trig_pkt_pattern *patterns = wowlan->patterns;
+ int mask_len;
+ s8 i = 0;
+
+ if (!wowlan->n_patterns)
+ return;
+
+ /*
+ * Add the new user configured patterns
+ */
+ for (i = 0; i < wowlan->n_patterns; i++) {
+
+ wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
+
+ if (!wow_pattern)
+ return;
+
+ /*
+ * TODO: convert the generic user space pattern to
+ * appropriate chip specific/802.11 pattern.
+ */
+
+ mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
+ memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
+ memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
+ memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
+ patterns[i].pattern_len);
+ memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
+ wow_pattern->pattern_len = patterns[i].pattern_len;
+
+ /*
+ * just need to take care of deauth and disssoc pattern,
+ * make sure we don't overwrite them.
+ */
+
+ ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
+ wow_pattern->mask_bytes,
+ i + 2,
+ wow_pattern->pattern_len);
+ kfree(wow_pattern);
+
+ }
+
+}
+
+static int ath9k_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan)
+{
+ struct ath_softc *sc = hw->priv;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 wow_triggers_enabled = 0;
+ int ret = 0;
+
+ mutex_lock(&sc->mutex);
+
+ ath_cancel_work(sc);
+ del_timer_sync(&common->ani.timer);
+ del_timer_sync(&sc->rx_poll_timer);
+
+ if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
+ ath_dbg(common, ANY, "Device not present\n");
+ ret = -EINVAL;
+ goto fail_wow;
+ }
+
+ if (WARN_ON(!wowlan)) {
+ ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
+ ret = -EINVAL;
+ goto fail_wow;
+ }
+
+ if (!device_can_wakeup(sc->dev)) {
+ ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
+ ret = 1;
+ goto fail_wow;
+ }
+
+ /*
+ * none of the sta vifs are associated
+ * and we are not currently handling multivif
+ * cases, for instance we have to seperately
+ * configure 'keep alive frame' for each
+ * STA.
+ */
+
+ if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
+ ath_dbg(common, WOW, "None of the STA vifs are associated\n");
+ ret = 1;
+ goto fail_wow;
+ }
+
+ if (sc->nvifs > 1) {
+ ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
+ ret = 1;
+ goto fail_wow;
+ }
+
+ ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
+
+ ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
+ wow_triggers_enabled);
+
+ ath9k_ps_wakeup(sc);
+
+ ath9k_stop_btcoex(sc);
+
+ /*
+ * Enable wake up on recieving disassoc/deauth
+ * frame by default.
+ */
+ ath9k_wow_add_disassoc_deauth_pattern(sc);
+
+ if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
+ ath9k_wow_add_pattern(sc, wowlan);
+
+ spin_lock_bh(&sc->sc_pcu_lock);
+ /*
+ * To avoid false wake, we enable beacon miss interrupt only
+ * when we go to sleep. We save the current interrupt mask
+ * so we can restore it after the system wakes up
+ */
+ sc->wow_intr_before_sleep = ah->imask;
+ ah->imask &= ~ATH9K_INT_GLOBAL;
+ ath9k_hw_disable_interrupts(ah);
+ ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_enable_interrupts(ah);
+
+ spin_unlock_bh(&sc->sc_pcu_lock);
+
+ /*
+ * we can now sync irq and kill any running tasklets, since we already
+ * disabled interrupts and not holding a spin lock
+ */
+ synchronize_irq(sc->irq);
+ tasklet_kill(&sc->intr_tq);
+
+ ath9k_hw_wow_enable(ah, wow_triggers_enabled);
+
+ ath9k_ps_restore(sc);
+ ath_dbg(common, ANY, "WoW enabled in ath9k\n");
+ atomic_inc(&sc->wow_sleep_proc_intr);
+
+fail_wow:
+ mutex_unlock(&sc->mutex);
+ return ret;
+}
+
+static int ath9k_resume(struct ieee80211_hw *hw)
+{
+ struct ath_softc *sc = hw->priv;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 wow_status;
+
+ mutex_lock(&sc->mutex);
+
+ ath9k_ps_wakeup(sc);
+
+ spin_lock_bh(&sc->sc_pcu_lock);
+
+ ath9k_hw_disable_interrupts(ah);
+ ah->imask = sc->wow_intr_before_sleep;
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_enable_interrupts(ah);
+
+ spin_unlock_bh(&sc->sc_pcu_lock);
+
+ wow_status = ath9k_hw_wow_wakeup(ah);
+
+ if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
+ /*
+ * some devices may not pick beacon miss
+ * as the reason they woke up so we add
+ * that here for that shortcoming.
+ */
+ wow_status |= AH_WOW_BEACON_MISS;
+ atomic_dec(&sc->wow_got_bmiss_intr);
+ ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
+ }
+
+ atomic_dec(&sc->wow_sleep_proc_intr);
+
+ if (wow_status) {
+ ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
+ ath9k_hw_wow_event_to_string(wow_status), wow_status);
+ }
+
+ ath_restart_work(sc);
+ ath9k_start_btcoex(sc);
+
+ ath9k_ps_restore(sc);
+ mutex_unlock(&sc->mutex);
+
+ return 0;
+}
+
+static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+ struct ath_softc *sc = hw->priv;
+
+ mutex_lock(&sc->mutex);
+ device_init_wakeup(sc->dev, 1);
+ device_set_wakeup_enable(sc->dev, enabled);
+ mutex_unlock(&sc->mutex);
+}
+
+#endif
+
struct ieee80211_ops ath9k_ops = {
.tx = ath9k_tx,
.start = ath9k_start,
@@ -2408,4 +2436,16 @@ struct ieee80211_ops ath9k_ops = {
.get_stats = ath9k_get_stats,
.set_antenna = ath9k_set_antenna,
.get_antenna = ath9k_get_antenna,
+
+#ifdef CONFIG_PM_SLEEP
+ .suspend = ath9k_suspend,
+ .resume = ath9k_resume,
+ .set_wakeup = ath9k_set_wakeup,
+#endif
+
+#ifdef CONFIG_ATH9K_DEBUGFS
+ .get_et_sset_count = ath9k_get_et_sset_count,
+ .get_et_stats = ath9k_get_et_stats,
+ .get_et_strings = ath9k_get_et_strings,
+#endif
};