diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 841 |
1 files changed, 619 insertions, 222 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 52bed89063d4..69cf702b18c2 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -16,6 +16,7 @@ #include <linux/nl80211.h> #include "ath9k.h" +#include "btcoex.h" static char *dev_info = "ath9k"; @@ -28,6 +29,10 @@ static int modparam_nohwcrypt; module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); +static unsigned int ath9k_debug = ATH_DBG_DEFAULT; +module_param_named(debug, ath9k_debug, uint, 0); +MODULE_PARM_DESC(debug, "Debugging mask"); + /* We use the hw_value as an index into our private channel structure */ #define CHAN2G(_freq, _idx) { \ @@ -224,8 +229,9 @@ static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) } sband->n_bitrates++; - DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n", - rate[i].bitrate / 10, rate[i].hw_value); + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, + "Rate: %2dMbps, ratecode: %2d\n", + rate[i].bitrate / 10, rate[i].hw_value); } } @@ -242,6 +248,51 @@ static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, return channel; } +static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) +{ + unsigned long flags; + bool ret; + + spin_lock_irqsave(&sc->sc_pm_lock, flags); + ret = ath9k_hw_setpower(sc->sc_ah, mode); + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + + return ret; +} + +void ath9k_ps_wakeup(struct ath_softc *sc) +{ + unsigned long flags; + + spin_lock_irqsave(&sc->sc_pm_lock, flags); + if (++sc->ps_usecount != 1) + goto unlock; + + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); + + unlock: + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); +} + +void ath9k_ps_restore(struct ath_softc *sc) +{ + unsigned long flags; + + spin_lock_irqsave(&sc->sc_pm_lock, flags); + if (--sc->ps_usecount != 0) + goto unlock; + + if (sc->ps_enabled && + !(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))) + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); + + unlock: + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); +} + /* * Set/change channels. If the channel is really being changed, it's done * by reseting the chip. To accomplish this we must first cleanup any pending @@ -251,6 +302,8 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, struct ath9k_channel *hchan) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + struct ieee80211_conf *conf = &common->hw->conf; bool fastcc = true, stopped; struct ieee80211_channel *channel = hw->conf.channel; int r; @@ -280,19 +333,19 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) fastcc = false; - DPRINTF(sc, ATH_DBG_CONFIG, - "(%u MHz) -> (%u MHz), chanwidth: %d\n", - sc->sc_ah->curchan->channel, - channel->center_freq, sc->tx_chan_width); + ath_print(common, ATH_DBG_CONFIG, + "(%u MHz) -> (%u MHz), conf_is_ht40: %d\n", + sc->sc_ah->curchan->channel, + channel->center_freq, conf_is_ht40(conf)); spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, hchan, fastcc); if (r) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset channel (%u Mhz) " - "reset status %d\n", - channel->center_freq, r); + ath_print(common, ATH_DBG_FATAL, + "Unable to reset channel (%u Mhz) " + "reset status %d\n", + channel->center_freq, r); spin_unlock_bh(&sc->sc_resetlock); goto ps_restore; } @@ -301,8 +354,8 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, sc->sc_flags &= ~SC_OP_FULL_RESET; if (ath_startrecv(sc) != 0) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to restart recv logic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to restart recv logic\n"); r = -EIO; goto ps_restore; } @@ -327,6 +380,7 @@ static 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; @@ -353,7 +407,7 @@ static void ath_ani_calibrate(unsigned long data) /* Long calibration runs independently of short calibration. */ if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { longcal = true; - DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); + ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); sc->ani.longcal_timer = timestamp; } @@ -361,7 +415,8 @@ static void ath_ani_calibrate(unsigned long data) if (!sc->ani.caldone) { if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { shortcal = true; - DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); + ath_print(common, ATH_DBG_ANI, + "shortcal @%lu\n", jiffies); sc->ani.shortcal_timer = timestamp; sc->ani.resetcal_timer = timestamp; } @@ -388,16 +443,21 @@ static void ath_ani_calibrate(unsigned long data) /* Perform calibration if necessary */ if (longcal || shortcal) { - sc->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan, - sc->rx_chainmask, longcal); + sc->ani.caldone = + ath9k_hw_calibrate(ah, + ah->curchan, + common->rx_chainmask, + longcal); if (longcal) sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, ah->curchan); - DPRINTF(sc, ATH_DBG_ANI," calibrate chan %u/%x nf: %d\n", - ah->curchan->channel, ah->curchan->channelFlags, - sc->ani.noise_floor); + ath_print(common, ATH_DBG_ANI, + " calibrate chan %u/%x nf: %d\n", + ah->curchan->channel, + ah->curchan->channelFlags, + sc->ani.noise_floor); } } @@ -439,17 +499,22 @@ static void ath_start_ani(struct ath_softc *sc) */ void ath_update_chainmask(struct ath_softc *sc, int is_ht) { + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + if ((sc->sc_flags & SC_OP_SCANNING) || is_ht || - (sc->btcoex_info.btcoex_scheme != ATH_BTCOEX_CFG_NONE)) { - sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; - sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; + (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) { + common->tx_chainmask = ah->caps.tx_chainmask; + common->rx_chainmask = ah->caps.rx_chainmask; } else { - sc->tx_chainmask = 1; - sc->rx_chainmask = 1; + common->tx_chainmask = 1; + common->rx_chainmask = 1; } - DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", - sc->tx_chainmask, sc->rx_chainmask); + ath_print(common, ATH_DBG_CONFIG, + "tx chmask: %d, rx chmask: %d\n", + common->tx_chainmask, + common->rx_chainmask); } static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) @@ -478,6 +543,9 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) static 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); + u32 status = sc->intrstatus; ath9k_ps_wakeup(sc); @@ -502,16 +570,17 @@ static void ath9k_tasklet(unsigned long data) * TSF sync does not look correct; remain awake to sync with * the next Beacon. */ - DPRINTF(sc, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n"); + ath_print(common, ATH_DBG_PS, + "TSFOOR - Sync with next Beacon\n"); sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; } - if (sc->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE) + if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) if (status & ATH9K_INT_GENTIMER) ath_gen_timer_isr(sc->sc_ah); /* re-enable hardware interrupt */ - ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); + ath9k_hw_set_interrupts(ah, sc->imask); ath9k_ps_restore(sc); } @@ -602,7 +671,7 @@ irqreturn_t ath_isr(int irq, void *dev) if (status & ATH9K_INT_TIM_TIMER) { /* Clear RxAbort bit so that we can * receive frames */ - ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); + ath9k_setpower(sc, ATH9K_PM_AWAKE); ath9k_hw_setrxabort(sc->sc_ah, 0); sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; } @@ -702,8 +771,8 @@ static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { /* TX MIC entry failed. No need to proceed further */ - DPRINTF(sc, ATH_DBG_FATAL, - "Setting TX MIC Key Failed\n"); + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, + "Setting TX MIC Key Failed\n"); return 0; } @@ -890,6 +959,7 @@ static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) static void setup_ht_cap(struct ath_softc *sc, struct ieee80211_sta_ht_cap *ht_info) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); u8 tx_streams, rx_streams; ht_info->ht_supported = true; @@ -903,12 +973,15 @@ static void setup_ht_cap(struct ath_softc *sc, /* set up supported mcs set */ memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); - tx_streams = !(sc->tx_chainmask & (sc->tx_chainmask - 1)) ? 1 : 2; - rx_streams = !(sc->rx_chainmask & (sc->rx_chainmask - 1)) ? 1 : 2; + tx_streams = !(common->tx_chainmask & (common->tx_chainmask - 1)) ? + 1 : 2; + rx_streams = !(common->rx_chainmask & (common->rx_chainmask - 1)) ? + 1 : 2; if (tx_streams != rx_streams) { - DPRINTF(sc, ATH_DBG_CONFIG, "TX streams %d, RX streams: %d\n", - tx_streams, rx_streams); + ath_print(common, ATH_DBG_CONFIG, + "TX streams %d, RX streams: %d\n", + tx_streams, rx_streams); ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; ht_info->mcs.tx_params |= ((tx_streams - 1) << IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); @@ -925,14 +998,17 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf) { + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); if (bss_conf->assoc) { - DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", - bss_conf->aid, sc->curbssid); + ath_print(common, ATH_DBG_CONFIG, + "Bss Info ASSOC %d, bssid: %pM\n", + bss_conf->aid, common->curbssid); /* New association, store aid */ - sc->curaid = bss_conf->aid; - ath9k_hw_write_associd(sc); + common->curaid = bss_conf->aid; + ath9k_hw_write_associd(ah); /* * Request a re-configuration of Beacon related timers @@ -949,8 +1025,8 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, ath_start_ani(sc); } else { - DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); - sc->curaid = 0; + ath_print(common, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); + common->curaid = 0; /* Stop ANI */ del_timer_sync(&sc->ani.timer); } @@ -1042,8 +1118,8 @@ static int ath_register_led(struct ath_softc *sc, struct ath_led *led, ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); if (ret) - DPRINTF(sc, ATH_DBG_FATAL, - "Failed to register led:%s", led->name); + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, + "Failed to register led:%s", led->name); else led->registered = 1; return ret; @@ -1127,6 +1203,7 @@ fail: void ath_radio_enable(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_channel *channel = sc->hw->conf.channel; int r; @@ -1139,17 +1216,17 @@ void ath_radio_enable(struct ath_softc *sc) spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) ", - "reset status %d\n", - channel->center_freq, r); + ath_print(common, ATH_DBG_FATAL, + "Unable to reset channel %u (%uMhz) ", + "reset status %d\n", + channel->center_freq, r); } spin_unlock_bh(&sc->sc_resetlock); ath_update_txpow(sc); if (ath_startrecv(sc) != 0) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to restart recv logic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to restart recv logic\n"); return; } @@ -1194,17 +1271,17 @@ void ath_radio_disable(struct ath_softc *sc) spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) " - "reset status %d\n", - channel->center_freq, r); + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, + "Unable to reset channel %u (%uMhz) " + "reset status %d\n", + channel->center_freq, r); } spin_unlock_bh(&sc->sc_resetlock); ath9k_hw_phy_disable(ah); ath9k_hw_configpcipowersave(ah, 1, 1); ath9k_ps_restore(sc); - ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); + ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); } /*******************/ @@ -1236,23 +1313,26 @@ static void ath_start_rfkill_poll(struct ath_softc *sc) wiphy_rfkill_start_polling(sc->hw->wiphy); } -void ath_cleanup(struct ath_softc *sc) +static void ath9k_uninit_hw(struct ath_softc *sc) { - ath_detach(sc); - free_irq(sc->irq, sc); - ath_bus_cleanup(sc); - kfree(sc->sec_wiphy); - ieee80211_free_hw(sc->hw); + struct ath_hw *ah = sc->sc_ah; + + BUG_ON(!ah); + + ath9k_exit_debug(ah); + ath9k_hw_detach(ah); + sc->sc_ah = NULL; } -void ath_detach(struct ath_softc *sc) +static void ath_clean_core(struct ath_softc *sc) { struct ieee80211_hw *hw = sc->hw; + struct ath_hw *ah = sc->sc_ah; int i = 0; ath9k_ps_wakeup(sc); - DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); + dev_dbg(sc->dev, "Detach ATH hw\n"); ath_deinit_leds(sc); wiphy_rfkill_stop_polling(sc->hw->wiphy); @@ -1273,20 +1353,36 @@ void ath_detach(struct ath_softc *sc) tasklet_kill(&sc->bcon_tasklet); if (!(sc->sc_flags & SC_OP_INVALID)) - ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); + ath9k_setpower(sc, ATH9K_PM_AWAKE); /* cleanup tx queues */ for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) if (ATH_TXQ_SETUP(sc, i)) ath_tx_cleanupq(sc, &sc->tx.txq[i]); - if ((sc->btcoex_info.no_stomp_timer) && - sc->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE) - ath_gen_timer_free(sc->sc_ah, sc->btcoex_info.no_stomp_timer); + if ((sc->btcoex.no_stomp_timer) && + ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) + ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer); +} - ath9k_hw_detach(sc->sc_ah); - sc->sc_ah = NULL; - ath9k_exit_debug(sc); +void ath_detach(struct ath_softc *sc) +{ + ath_clean_core(sc); + ath9k_uninit_hw(sc); +} + +void ath_cleanup(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + + ath_clean_core(sc); + free_irq(sc->irq, sc); + ath_bus_cleanup(common); + kfree(sc->sec_wiphy); + ieee80211_free_hw(sc->hw); + + ath9k_uninit_hw(sc); } static int ath9k_reg_notifier(struct wiphy *wiphy, @@ -1295,29 +1391,245 @@ static int ath9k_reg_notifier(struct wiphy *wiphy, struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - struct ath_regulatory *reg = &sc->common.regulatory; + struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah); return ath_reg_notifier_apply(wiphy, request, reg); } /* + * Detects if there is any priority bt traffic + */ +static void ath_detect_bt_priority(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) + btcoex->bt_priority_cnt++; + + if (time_after(jiffies, btcoex->bt_priority_time + + msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { + if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, + "BT priority traffic detected"); + sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; + } else { + sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED; + } + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + } +} + +/* + * Configures appropriate weight based on stomp type. + */ +static void ath9k_btcoex_bt_stomp(struct ath_softc *sc, + enum ath_stomp_type stomp_type) +{ + struct ath_hw *ah = sc->sc_ah; + + switch (stomp_type) { + case ATH_BTCOEX_STOMP_ALL: + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_ALL_WLAN_WGHT); + break; + case ATH_BTCOEX_STOMP_LOW: + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_LOW_WLAN_WGHT); + break; + case ATH_BTCOEX_STOMP_NONE: + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_NONE_WLAN_WGHT); + break; + default: + ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, + "Invalid Stomptype\n"); + break; + } + + ath9k_hw_btcoex_enable(ah); +} + +static void ath9k_gen_timer_start(struct ath_hw *ah, + struct ath_gen_timer *timer, + u32 timer_next, + u32 timer_period) +{ + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + + ath9k_hw_gen_timer_start(ah, timer, timer_next, timer_period); + + if ((sc->imask & ATH9K_INT_GENTIMER) == 0) { + ath9k_hw_set_interrupts(ah, 0); + sc->imask |= ATH9K_INT_GENTIMER; + ath9k_hw_set_interrupts(ah, sc->imask); + } +} + +static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) +{ + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; + + ath9k_hw_gen_timer_stop(ah, timer); + + /* if no timer is enabled, turn off interrupt mask */ + if (timer_table->timer_mask.val == 0) { + ath9k_hw_set_interrupts(ah, 0); + sc->imask &= ~ATH9K_INT_GENTIMER; + ath9k_hw_set_interrupts(ah, sc->imask); + } +} + +/* + * This is the master bt coex timer which runs for every + * 45ms, bt traffic will be given priority during 55% of this + * period while wlan gets remaining 45% + */ +static void ath_btcoex_period_timer(unsigned long data) +{ + struct ath_softc *sc = (struct ath_softc *) data; + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + + ath_detect_bt_priority(sc); + + spin_lock_bh(&btcoex->btcoex_lock); + + ath9k_btcoex_bt_stomp(sc, btcoex->bt_stomp_type); + + spin_unlock_bh(&btcoex->btcoex_lock); + + if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); + + ath9k_gen_timer_start(ah, + btcoex->no_stomp_timer, + (ath9k_hw_gettsf32(ah) + + btcoex->btcoex_no_stomp), + btcoex->btcoex_no_stomp * 10); + btcoex->hw_timer_enabled = true; + } + + mod_timer(&btcoex->period_timer, jiffies + + msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD)); +} + +/* + * Generic tsf based hw timer which configures weight + * registers to time slice between wlan and bt traffic + */ +static void ath_btcoex_no_stomp_timer(void *arg) +{ + struct ath_softc *sc = (struct ath_softc *)arg; + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + + ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, + "no stomp timer running \n"); + + spin_lock_bh(&btcoex->btcoex_lock); + + if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW) + ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_NONE); + else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) + ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_LOW); + + spin_unlock_bh(&btcoex->btcoex_lock); +} + +static int ath_init_btcoex_timer(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + + btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; + btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + + setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, + (unsigned long) sc); + + spin_lock_init(&btcoex->btcoex_lock); + + btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah, + ath_btcoex_no_stomp_timer, + ath_btcoex_no_stomp_timer, + (void *) sc, AR_FIRST_NDP_TIMER); + + if (!btcoex->no_stomp_timer) + return -ENOMEM; + + return 0; +} + +/* + * Read and write, they both share the same lock. We do this to serialize + * reads and writes on Atheros 802.11n PCI devices only. This is required + * as the FIFO on these devices can only accept sanely 2 requests. After + * that the device goes bananas. Serializing the reads/writes prevents this + * from happening. + */ + +static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + + if (ah->config.serialize_regmode == SER_REG_MODE_ON) { + unsigned long flags; + spin_lock_irqsave(&sc->sc_serial_rw, flags); + iowrite32(val, sc->mem + reg_offset); + spin_unlock_irqrestore(&sc->sc_serial_rw, flags); + } else + iowrite32(val, sc->mem + reg_offset); +} + +static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath_softc *sc = (struct ath_softc *) common->priv; + u32 val; + + if (ah->config.serialize_regmode == SER_REG_MODE_ON) { + unsigned long flags; + spin_lock_irqsave(&sc->sc_serial_rw, flags); + val = ioread32(sc->mem + reg_offset); + spin_unlock_irqrestore(&sc->sc_serial_rw, flags); + } else + val = ioread32(sc->mem + reg_offset); + return val; +} + +static const struct ath_ops ath9k_common_ops = { + .read = ath9k_ioread32, + .write = ath9k_iowrite32, +}; + +/* * Initialize and fill ath_softc, ath_sofct is the * "Software Carrier" struct. Historically it has existed * to allow the separation between hardware specific * variables (now in ath_hw) and driver specific variables. */ -static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid) +static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, + const struct ath_bus_ops *bus_ops) { struct ath_hw *ah = NULL; + struct ath_common *common; int r = 0, i; int csz = 0; + int qnum; /* XXX: hardware will not be ready until ath_open() being called */ sc->sc_flags |= SC_OP_INVALID; - if (ath9k_init_debug(sc) < 0) - printk(KERN_ERR "Unable to create debugfs files\n"); - spin_lock_init(&sc->wiphy_lock); spin_lock_init(&sc->sc_resetlock); spin_lock_init(&sc->sc_serial_rw); @@ -1328,39 +1640,50 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid) tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, (unsigned long)sc); - /* - * Cache line size is used to size and align various - * structures used to communicate with the hardware. - */ - ath_read_cachesize(sc, &csz); - /* XXX assert csz is non-zero */ - sc->common.cachelsz = csz << 2; /* convert to bytes */ - ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); - if (!ah) { - r = -ENOMEM; - goto bad_no_ah; - } + if (!ah) + return -ENOMEM; - ah->ah_sc = sc; ah->hw_version.devid = devid; ah->hw_version.subsysid = subsysid; sc->sc_ah = ah; + common = ath9k_hw_common(ah); + common->ops = &ath9k_common_ops; + common->bus_ops = bus_ops; + common->ah = ah; + common->hw = sc->hw; + common->priv = sc; + common->debug_mask = ath9k_debug; + + /* + * Cache line size is used to size and align various + * structures used to communicate with the hardware. + */ + ath_read_cachesize(common, &csz); + /* XXX assert csz is non-zero */ + common->cachelsz = csz << 2; /* convert to bytes */ + r = ath9k_hw_init(ah); if (r) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to initialize hardware; " - "initialization status: %d\n", r); - goto bad; + ath_print(common, ATH_DBG_FATAL, + "Unable to initialize hardware; " + "initialization status: %d\n", r); + goto bad_free_hw; + } + + if (ath9k_init_debug(ah) < 0) { + ath_print(common, ATH_DBG_FATAL, + "Unable to create debugfs files\n"); + goto bad_free_hw; } /* Get the hardware key cache size. */ sc->keymax = ah->caps.keycache_size; if (sc->keymax > ATH_KEYMAX) { - DPRINTF(sc, ATH_DBG_ANY, - "Warning, using only %u entries in %u key cache\n", - ATH_KEYMAX, sc->keymax); + ath_print(common, ATH_DBG_ANY, + "Warning, using only %u entries in %u key cache\n", + ATH_KEYMAX, sc->keymax); sc->keymax = ATH_KEYMAX; } @@ -1386,17 +1709,17 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid) * priority. Note that the hal handles reseting * these queues at the needed time. */ - sc->beacon.beaconq = ath_beaconq_setup(ah); + sc->beacon.beaconq = ath9k_hw_beaconq_setup(ah); if (sc->beacon.beaconq == -1) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to setup a beacon xmit queue\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to setup a beacon xmit queue\n"); r = -EIO; goto bad2; } sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); if (sc->beacon.cabq == NULL) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to setup CAB xmit queue\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to setup CAB xmit queue\n"); r = -EIO; goto bad2; } @@ -1410,27 +1733,27 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid) /* Setup data queues */ /* NB: ensure BK queue is the lowest priority h/w queue */ if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to setup xmit queue for BK traffic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to setup xmit queue for BK traffic\n"); r = -EIO; goto bad2; } if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to setup xmit queue for BE traffic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to setup xmit queue for BE traffic\n"); r = -EIO; goto bad2; } if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to setup xmit queue for VI traffic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to setup xmit queue for VI traffic\n"); r = -EIO; goto bad2; } if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to setup xmit queue for VO traffic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to setup xmit queue for VO traffic\n"); r = -EIO; goto bad2; } @@ -1480,14 +1803,14 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid) sc->sc_flags |= SC_OP_RXAGGR; } - sc->tx_chainmask = ah->caps.tx_chainmask; - sc->rx_chainmask = ah->caps.rx_chainmask; + common->tx_chainmask = ah->caps.tx_chainmask; + common->rx_chainmask = ah->caps.rx_chainmask; ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); sc->rx.defant = ath9k_hw_getdefantenna(ah); if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) - memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); + memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ @@ -1515,10 +1838,24 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid) ARRAY_SIZE(ath9k_5ghz_chantable); } - if (sc->btcoex_info.btcoex_scheme != ATH_BTCOEX_CFG_NONE) { - r = ath9k_hw_btcoex_init(ah); + switch (ah->btcoex_hw.scheme) { + case ATH_BTCOEX_CFG_NONE: + break; + case ATH_BTCOEX_CFG_2WIRE: + ath9k_hw_btcoex_init_2wire(ah); + break; + case ATH_BTCOEX_CFG_3WIRE: + ath9k_hw_btcoex_init_3wire(ah); + r = ath_init_btcoex_timer(sc); if (r) goto bad2; + qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE); + ath9k_hw_init_btcoex_hw(ah, qnum); + sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; + break; + default: + WARN_ON(1); + break; } return 0; @@ -1527,12 +1864,9 @@ bad2: for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) if (ATH_TXQ_SETUP(sc, i)) ath_tx_cleanupq(sc, &sc->tx.txq[i]); -bad: - ath9k_hw_detach(ah); - sc->sc_ah = NULL; -bad_no_ah: - ath9k_exit_debug(sc); +bad_free_hw: + ath9k_uninit_hw(sc); return r; } @@ -1574,34 +1908,40 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) } /* Device driver core initialization */ -int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid) +int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid, + const struct ath_bus_ops *bus_ops) { struct ieee80211_hw *hw = sc->hw; + struct ath_common *common; + struct ath_hw *ah; int error = 0, i; struct ath_regulatory *reg; - DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); + dev_dbg(sc->dev, "Attach ATH hw\n"); - error = ath_init_softc(devid, sc, subsysid); + error = ath_init_softc(devid, sc, subsysid, bus_ops); if (error != 0) return error; + ah = sc->sc_ah; + common = ath9k_hw_common(ah); + /* get mac address from hardware and set in mac80211 */ - SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); + SET_IEEE80211_PERM_ADDR(hw, common->macaddr); ath_set_hw_capab(sc, hw); - error = ath_regd_init(&sc->common.regulatory, sc->hw->wiphy, + error = ath_regd_init(&common->regulatory, sc->hw->wiphy, ath9k_reg_notifier); if (error) return error; - reg = &sc->common.regulatory; + reg = &common->regulatory; - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { + if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) + if (test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); } @@ -1639,9 +1979,7 @@ error_attach: if (ATH_TXQ_SETUP(sc, i)) ath_tx_cleanupq(sc, &sc->tx.txq[i]); - ath9k_hw_detach(sc->sc_ah); - sc->sc_ah = NULL; - ath9k_exit_debug(sc); + ath9k_uninit_hw(sc); return error; } @@ -1649,6 +1987,7 @@ error_attach: int ath_reset(struct ath_softc *sc, bool retry_tx) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_hw *hw = sc->hw; int r; @@ -1660,12 +1999,13 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); if (r) - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset hardware; reset status %d\n", r); + ath_print(common, ATH_DBG_FATAL, + "Unable to reset hardware; reset status %d\n", r); spin_unlock_bh(&sc->sc_resetlock); if (ath_startrecv(sc) != 0) - DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to start recv logic\n"); /* * We may be doing a reset in response to a request @@ -1708,19 +2048,20 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) - + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_desc *ds; struct ath_buf *bf; int i, bsize, error; - DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", - name, nbuf, ndesc); + ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", + name, nbuf, ndesc); INIT_LIST_HEAD(head); /* ath_desc must be a multiple of DWORDs */ if ((sizeof(struct ath_desc) % 4) != 0) { - DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); - ASSERT((sizeof(struct ath_desc) % 4) == 0); + ath_print(common, ATH_DBG_FATAL, + "ath_desc not DWORD aligned\n"); + BUG_ON((sizeof(struct ath_desc) % 4) != 0); error = -ENOMEM; goto fail; } @@ -1753,9 +2094,9 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, goto fail; } ds = dd->dd_desc; - DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", - name, ds, (u32) dd->dd_desc_len, - ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); + ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", + name, ds, (u32) dd->dd_desc_len, + ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); /* allocate buffers */ bsize = sizeof(struct ath_buf) * nbuf; @@ -1778,7 +2119,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, * descriptor fetch. */ while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { - ASSERT((caddr_t) bf->bf_desc < + BUG_ON((caddr_t) bf->bf_desc >= ((caddr_t) dd->dd_desc + dd->dd_desc_len)); @@ -1882,31 +2223,50 @@ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; } - sc->tx_chan_width = ATH9K_HT_MACMODE_20; - - if (conf_is_ht(conf)) { - if (conf_is_ht40(conf)) - sc->tx_chan_width = ATH9K_HT_MACMODE_2040; - + if (conf_is_ht(conf)) ichan->chanmode = ath_get_extchanmode(sc, chan, conf->channel_type); - } } /**********************/ /* mac80211 callbacks */ /**********************/ +/* + * (Re)start btcoex timers + */ +static void ath9k_btcoex_timer_resume(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, + "Starting btcoex timers"); + + /* make sure duty cycle timer is also stopped when resuming */ + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED; + + mod_timer(&btcoex->period_timer, jiffies); +} + static int ath9k_start(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_channel *curchan = hw->conf.channel; struct ath9k_channel *init_channel; int r; - DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " - "initial channel: %d MHz\n", curchan->center_freq); + ath_print(common, ATH_DBG_CONFIG, + "Starting driver with initial channel: %d MHz\n", + curchan->center_freq); mutex_lock(&sc->mutex); @@ -1938,7 +2298,7 @@ static int ath9k_start(struct ieee80211_hw *hw) init_channel = ath_get_curchannel(sc, hw); /* Reset SERDES registers */ - ath9k_hw_configpcipowersave(sc->sc_ah, 0, 0); + ath9k_hw_configpcipowersave(ah, 0, 0); /* * The basic interface to setting the hardware in a good @@ -1948,12 +2308,12 @@ static int ath9k_start(struct ieee80211_hw *hw) * and then setup of the interrupt mask. */ spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(sc->sc_ah, init_channel, false); + r = ath9k_hw_reset(ah, init_channel, false); if (r) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset hardware; reset status %d " - "(freq %u MHz)\n", r, - curchan->center_freq); + ath_print(common, ATH_DBG_FATAL, + "Unable to reset hardware; reset status %d " + "(freq %u MHz)\n", r, + curchan->center_freq); spin_unlock_bh(&sc->sc_resetlock); goto mutex_unlock; } @@ -1973,7 +2333,8 @@ static int ath9k_start(struct ieee80211_hw *hw) * here except setup the interrupt mask. */ if (ath_startrecv(sc) != 0) { - DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to start recv logic\n"); r = -EIO; goto mutex_unlock; } @@ -1983,10 +2344,10 @@ static int ath9k_start(struct ieee80211_hw *hw) | ATH9K_INT_RXEOL | ATH9K_INT_RXORN | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) + if (ah->caps.hw_caps & ATH9K_HW_CAP_GTT) sc->imask |= ATH9K_INT_GTT; - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) + if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) sc->imask |= ATH9K_INT_CST; ath_cache_conf_rate(sc, &hw->conf); @@ -1995,21 +2356,22 @@ static int ath9k_start(struct ieee80211_hw *hw) /* Disable BMISS interrupt when we're not associated */ sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); - ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); + ath9k_hw_set_interrupts(ah, sc->imask); ieee80211_wake_queues(hw); ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); - if ((sc->btcoex_info.btcoex_scheme != ATH_BTCOEX_CFG_NONE) && - !(sc->sc_flags & SC_OP_BTCOEX_ENABLED)) { - ath_btcoex_set_weight(&sc->btcoex_info, AR_BT_COEX_WGHT, - AR_STOMP_LOW_WLAN_WGHT); - ath9k_hw_btcoex_enable(sc->sc_ah); + if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) && + !ah->btcoex_hw.enabled) { + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_LOW_WLAN_WGHT); + ath9k_hw_btcoex_enable(ah); - ath_pcie_aspm_disable(sc); - if (sc->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE) - ath_btcoex_timer_resume(sc, &sc->btcoex_info); + if (common->bus_ops->bt_coex_prep) + common->bus_ops->bt_coex_prep(common); + if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) + ath9k_btcoex_timer_resume(sc); } mutex_unlock: @@ -2024,12 +2386,14 @@ static int ath9k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_tx_control txctl; int hdrlen, padsize; if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { - printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " - "%d\n", wiphy_name(hw->wiphy), aphy->state); + ath_print(common, ATH_DBG_XMIT, + "ath9k: %s: TX in unexpected wiphy state " + "%d\n", wiphy_name(hw->wiphy), aphy->state); goto exit; } @@ -2042,8 +2406,8 @@ static int ath9k_tx(struct ieee80211_hw *hw, if (ieee80211_is_data(hdr->frame_control) && !ieee80211_is_nullfunc(hdr->frame_control) && !ieee80211_has_pm(hdr->frame_control)) { - DPRINTF(sc, ATH_DBG_PS, "Add PM=1 for a TX frame " - "while in PS mode\n"); + ath_print(common, ATH_DBG_PS, "Add PM=1 for a TX frame " + "while in PS mode\n"); hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); } } @@ -2058,11 +2422,12 @@ static int ath9k_tx(struct ieee80211_hw *hw, 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"); + ath_print(common, 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"); + ath_print(common, ATH_DBG_PS, + "Wake up to complete TX\n"); sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; } /* @@ -2104,10 +2469,10 @@ static int ath9k_tx(struct ieee80211_hw *hw, if (!txctl.txq) goto exit; - DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); + ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); if (ath_tx_start(hw, skb, &txctl) != 0) { - DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); + ath_print(common, ATH_DBG_XMIT, "TX failed\n"); goto exit; } @@ -2117,10 +2482,28 @@ exit: return 0; } +/* + * Pause btcoex timer and bt duty cycle timer + */ +static void ath9k_btcoex_timer_pause(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + del_timer_sync(&btcoex->period_timer); + + if (btcoex->hw_timer_enabled) + ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); + + btcoex->hw_timer_enabled = false; +} + static void ath9k_stop(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); mutex_lock(&sc->mutex); @@ -2135,7 +2518,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) } if (sc->sc_flags & SC_OP_INVALID) { - DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); + ath_print(common, ATH_DBG_ANY, "Device not present\n"); mutex_unlock(&sc->mutex); return; } @@ -2145,33 +2528,33 @@ static void ath9k_stop(struct ieee80211_hw *hw) return; /* another wiphy still in use */ } - if (sc->sc_flags & SC_OP_BTCOEX_ENABLED) { - ath9k_hw_btcoex_disable(sc->sc_ah); - if (sc->btcoex_info.btcoex_scheme == ATH_BTCOEX_CFG_3WIRE) - ath_btcoex_timer_pause(sc, &sc->btcoex_info); + if (ah->btcoex_hw.enabled) { + ath9k_hw_btcoex_disable(ah); + if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) + ath9k_btcoex_timer_pause(sc); } /* make sure h/w will not generate any interrupt * before setting the invalid flag. */ - ath9k_hw_set_interrupts(sc->sc_ah, 0); + ath9k_hw_set_interrupts(ah, 0); if (!(sc->sc_flags & SC_OP_INVALID)) { ath_drain_all_txq(sc, false); ath_stoprecv(sc); - ath9k_hw_phy_disable(sc->sc_ah); + ath9k_hw_phy_disable(ah); } else sc->rx.rxlink = NULL; /* disable HAL and put h/w to sleep */ - ath9k_hw_disable(sc->sc_ah); - ath9k_hw_configpcipowersave(sc->sc_ah, 1, 1); - ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); + ath9k_hw_disable(ah); + ath9k_hw_configpcipowersave(ah, 1, 1); + ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); sc->sc_flags |= SC_OP_INVALID; mutex_unlock(&sc->mutex); - DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); + ath_print(common, ATH_DBG_CONFIG, "Driver halt\n"); } static int ath9k_add_interface(struct ieee80211_hw *hw, @@ -2179,6 +2562,7 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_vif *avp = (void *)conf->vif->drv_priv; enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; int ret = 0; @@ -2205,13 +2589,14 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, ic_opmode = conf->type; break; default: - DPRINTF(sc, ATH_DBG_FATAL, + ath_print(common, ATH_DBG_FATAL, "Interface type %d not yet supported\n", conf->type); ret = -EOPNOTSUPP; goto out; } - DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode); + ath_print(common, ATH_DBG_CONFIG, + "Attach a VIF of type: %d\n", ic_opmode); /* Set the VIF opmode */ avp->av_opmode = ic_opmode; @@ -2261,10 +2646,11 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_vif *avp = (void *)conf->vif->drv_priv; int i; - DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); + ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); mutex_lock(&sc->mutex); @@ -2299,6 +2685,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ieee80211_conf *conf = &hw->conf; struct ath_hw *ah = sc->sc_ah; bool all_wiphys_idle = false, disable_radio = false; @@ -2318,8 +2705,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } else if (all_wiphys_idle) { ath_radio_enable(sc); - DPRINTF(sc, ATH_DBG_CONFIG, - "not-idle: enabling radio\n"); + ath_print(common, ATH_DBG_CONFIG, + "not-idle: enabling radio\n"); } } @@ -2337,7 +2724,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) sc->ps_enabled = true; } else { sc->ps_enabled = false; - ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); + ath9k_setpower(sc, ATH9K_PM_AWAKE); if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { ath9k_hw_setrxabort(sc->sc_ah, 0); @@ -2372,8 +2759,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) goto skip_chan_change; } - DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", - curchan->center_freq); + ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", + curchan->center_freq); /* XXX: remove me eventualy */ ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); @@ -2381,7 +2768,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) ath_update_chainmask(sc, conf_is_ht(conf)); if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { - DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); + ath_print(common, ATH_DBG_FATAL, + "Unable to set channel\n"); mutex_unlock(&sc->mutex); return -EINVAL; } @@ -2392,7 +2780,7 @@ skip_chan_change: sc->config.txpowlimit = 2 * conf->power_level; if (disable_radio) { - DPRINTF(sc, ATH_DBG_CONFIG, "idle: disabling radio\n"); + ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); ath_radio_disable(sc); } @@ -2429,7 +2817,8 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw, ath9k_hw_setrxfilter(sc->sc_ah, rfilt); ath9k_ps_restore(sc); - DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", rfilt); + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, + "Set HW RX filter: 0x%x\n", rfilt); } static void ath9k_sta_notify(struct ieee80211_hw *hw, @@ -2457,6 +2846,7 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath9k_tx_queue_info qi; int ret = 0, qnum; @@ -2473,15 +2863,15 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, qi.tqi_burstTime = params->txop; qnum = ath_get_hal_qnum(queue, sc); - DPRINTF(sc, ATH_DBG_CONFIG, - "Configure tx [queue/halq] [%d/%d], " - "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", - queue, qnum, params->aifs, params->cw_min, - params->cw_max, params->txop); + ath_print(common, ATH_DBG_CONFIG, + "Configure tx [queue/halq] [%d/%d], " + "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", + queue, qnum, params->aifs, params->cw_min, + params->cw_max, params->txop); ret = ath_txq_update(sc, qnum, &qi); if (ret) - DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); + ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n"); mutex_unlock(&sc->mutex); @@ -2496,6 +2886,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw, { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); int ret = 0; if (modparam_nohwcrypt) @@ -2503,7 +2894,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw, mutex_lock(&sc->mutex); ath9k_ps_wakeup(sc); - DPRINTF(sc, ATH_DBG_CONFIG, "Set HW Key\n"); + ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n"); switch (cmd) { case SET_KEY: @@ -2540,6 +2931,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); struct ath_vif *avp = (void *)vif->drv_priv; u32 rfilt = 0; int error, i; @@ -2555,9 +2947,9 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, ah->opmode != NL80211_IFTYPE_AP) { ah->opmode = NL80211_IFTYPE_STATION; ath9k_hw_setopmode(ah); - memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); - sc->curaid = 0; - ath9k_hw_write_associd(sc); + memcpy(common->curbssid, common->macaddr, ETH_ALEN); + common->curaid = 0; + ath9k_hw_write_associd(ah); /* Request full reset to get hw opmode changed properly */ sc->sc_flags |= SC_OP_FULL_RESET; } @@ -2569,17 +2961,17 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_MESH_POINT: /* Set BSSID */ - memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN); + memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); - sc->curaid = 0; - ath9k_hw_write_associd(sc); + common->curaid = 0; + ath9k_hw_write_associd(ah); /* Set aggregation protection mode parameters */ sc->config.ath_aggr_prot = 0; - DPRINTF(sc, ATH_DBG_CONFIG, - "RX filter 0x%x bssid %pM aid 0x%x\n", - rfilt, sc->curbssid, sc->curaid); + ath_print(common, ATH_DBG_CONFIG, + "RX filter 0x%x bssid %pM aid 0x%x\n", + rfilt, common->curbssid, common->curaid); /* need to reconfigure the beacon */ sc->sc_flags &= ~SC_OP_BEACONS ; @@ -2618,7 +3010,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) ath9k_hw_keysetmac(sc->sc_ah, (u16)i, - sc->curbssid); + common->curbssid); } /* Only legacy IBSS for now */ @@ -2626,8 +3018,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, ath_update_chainmask(sc, 0); if (changed & BSS_CHANGED_ERP_PREAMBLE) { - DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", - bss_conf->use_short_preamble); + ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", + bss_conf->use_short_preamble); if (bss_conf->use_short_preamble) sc->sc_flags |= SC_OP_PREAMBLE_SHORT; else @@ -2635,8 +3027,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, } if (changed & BSS_CHANGED_ERP_CTS_PROT) { - DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", - bss_conf->use_cts_prot); + ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", + bss_conf->use_cts_prot); if (bss_conf->use_cts_prot && hw->conf.channel->band != IEEE80211_BAND_5GHZ) sc->sc_flags |= SC_OP_PROTECT_ENABLE; @@ -2645,7 +3037,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, } if (changed & BSS_CHANGED_ASSOC) { - DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", + ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", bss_conf->assoc); ath9k_bss_assoc_info(sc, vif, bss_conf); } @@ -2694,7 +3086,11 @@ static void ath9k_reset_tsf(struct ieee80211_hw *hw) struct ath_softc *sc = aphy->sc; mutex_lock(&sc->mutex); + + ath9k_ps_wakeup(sc); ath9k_hw_reset_tsf(sc->sc_ah); + ath9k_ps_restore(sc); + mutex_unlock(&sc->mutex); } @@ -2726,7 +3122,8 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw, ath_tx_aggr_resume(sc, sta, tid); break; default: - DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); + ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, + "Unknown AMPDU action\n"); } return ret; |