diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 1451 |
1 files changed, 132 insertions, 1319 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 643bea35686f..67ca4e5a6017 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -18,118 +18,6 @@ #include "ath9k.h" #include "btcoex.h" -static char *dev_info = "ath9k"; - -MODULE_AUTHOR("Atheros Communications"); -MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); -MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); -MODULE_LICENSE("Dual BSD/GPL"); - -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) { \ - .center_freq = (_freq), \ - .hw_value = (_idx), \ - .max_power = 20, \ -} - -#define CHAN5G(_freq, _idx) { \ - .band = IEEE80211_BAND_5GHZ, \ - .center_freq = (_freq), \ - .hw_value = (_idx), \ - .max_power = 20, \ -} - -/* Some 2 GHz radios are actually tunable on 2312-2732 - * on 5 MHz steps, we support the channels which we know - * we have calibration data for all cards though to make - * this static */ -static struct ieee80211_channel ath9k_2ghz_chantable[] = { - CHAN2G(2412, 0), /* Channel 1 */ - CHAN2G(2417, 1), /* Channel 2 */ - CHAN2G(2422, 2), /* Channel 3 */ - CHAN2G(2427, 3), /* Channel 4 */ - CHAN2G(2432, 4), /* Channel 5 */ - CHAN2G(2437, 5), /* Channel 6 */ - CHAN2G(2442, 6), /* Channel 7 */ - CHAN2G(2447, 7), /* Channel 8 */ - CHAN2G(2452, 8), /* Channel 9 */ - CHAN2G(2457, 9), /* Channel 10 */ - CHAN2G(2462, 10), /* Channel 11 */ - CHAN2G(2467, 11), /* Channel 12 */ - CHAN2G(2472, 12), /* Channel 13 */ - CHAN2G(2484, 13), /* Channel 14 */ -}; - -/* Some 5 GHz radios are actually tunable on XXXX-YYYY - * on 5 MHz steps, we support the channels which we know - * we have calibration data for all cards though to make - * this static */ -static struct ieee80211_channel ath9k_5ghz_chantable[] = { - /* _We_ call this UNII 1 */ - CHAN5G(5180, 14), /* Channel 36 */ - CHAN5G(5200, 15), /* Channel 40 */ - CHAN5G(5220, 16), /* Channel 44 */ - CHAN5G(5240, 17), /* Channel 48 */ - /* _We_ call this UNII 2 */ - CHAN5G(5260, 18), /* Channel 52 */ - CHAN5G(5280, 19), /* Channel 56 */ - CHAN5G(5300, 20), /* Channel 60 */ - CHAN5G(5320, 21), /* Channel 64 */ - /* _We_ call this "Middle band" */ - CHAN5G(5500, 22), /* Channel 100 */ - CHAN5G(5520, 23), /* Channel 104 */ - CHAN5G(5540, 24), /* Channel 108 */ - CHAN5G(5560, 25), /* Channel 112 */ - CHAN5G(5580, 26), /* Channel 116 */ - CHAN5G(5600, 27), /* Channel 120 */ - CHAN5G(5620, 28), /* Channel 124 */ - CHAN5G(5640, 29), /* Channel 128 */ - CHAN5G(5660, 30), /* Channel 132 */ - CHAN5G(5680, 31), /* Channel 136 */ - CHAN5G(5700, 32), /* Channel 140 */ - /* _We_ call this UNII 3 */ - CHAN5G(5745, 33), /* Channel 149 */ - CHAN5G(5765, 34), /* Channel 153 */ - CHAN5G(5785, 35), /* Channel 157 */ - CHAN5G(5805, 36), /* Channel 161 */ - CHAN5G(5825, 37), /* Channel 165 */ -}; - -/* Atheros hardware rate code addition for short premble */ -#define SHPCHECK(__hw_rate, __flags) \ - ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0) - -#define RATE(_bitrate, _hw_rate, _flags) { \ - .bitrate = (_bitrate), \ - .flags = (_flags), \ - .hw_value = (_hw_rate), \ - .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \ -} - -static struct ieee80211_rate ath9k_legacy_rates[] = { - RATE(10, 0x1b, 0), - RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), - RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), - RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), - RATE(60, 0x0b, 0), - RATE(90, 0x0f, 0), - RATE(120, 0x0a, 0), - RATE(180, 0x0e, 0), - RATE(240, 0x09, 0), - RATE(360, 0x0d, 0), - RATE(480, 0x08, 0), - RATE(540, 0x0c, 0), -}; - static void ath_cache_conf_rate(struct ath_softc *sc, struct ieee80211_conf *conf) { @@ -221,7 +109,7 @@ 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) +bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) { unsigned long flags; bool ret; @@ -255,11 +143,13 @@ void ath9k_ps_restore(struct ath_softc *sc) 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))) + if (sc->ps_idle) + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); + else if (sc->ps_enabled && + !(sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK))) ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); unlock: @@ -316,7 +206,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, r = ath9k_hw_reset(ah, hchan, fastcc); if (r) { ath_print(common, ATH_DBG_FATAL, - "Unable to reset channel (%u Mhz) " + "Unable to reset channel (%u MHz), " "reset status %d\n", channel->center_freq, r); spin_unlock_bh(&sc->sc_resetlock); @@ -349,7 +239,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, * When the task is complete, it reschedules itself depending on the * appropriate interval that was calculated. */ -static void ath_ani_calibrate(unsigned long data) +void ath_ani_calibrate(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; struct ath_hw *ah = sc->sc_ah; @@ -363,14 +253,6 @@ static void ath_ani_calibrate(unsigned long data) short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; - /* - * don't calibrate when we're scanning. - * we are most likely not on our home channel. - */ - spin_lock(&sc->ani_lock); - if (sc->sc_flags & SC_OP_SCANNING) - goto set_timer; - /* Only calibrate if awake */ if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) goto set_timer; @@ -437,7 +319,6 @@ static void ath_ani_calibrate(unsigned long data) ath9k_ps_restore(sc); set_timer: - spin_unlock(&sc->ani_lock); /* * Set timer interval based on previous results. * The interval must be the shortest necessary to satisfy ANI, @@ -513,7 +394,7 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) ath_tx_node_cleanup(sc, an); } -static void ath9k_tasklet(unsigned long data) +void ath9k_tasklet(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; struct ath_hw *ah = sc->sc_ah; @@ -545,7 +426,7 @@ static void ath9k_tasklet(unsigned long data) */ ath_print(common, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; + sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC; } if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) @@ -646,7 +527,7 @@ irqreturn_t ath_isr(int irq, void *dev) * receive frames */ ath9k_setpower(sc, ATH9K_PM_AWAKE); ath9k_hw_setrxabort(sc->sc_ah, 0); - sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; + sc->ps_flags |= PS_WAIT_FOR_BEACON; } chip_reset: @@ -928,49 +809,12 @@ static void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf clear_bit(key->hw_key_idx + 64, common->keymap); if (common->splitmic) { + ath9k_hw_keyreset(ah, key->hw_key_idx + 32); clear_bit(key->hw_key_idx + 32, common->keymap); clear_bit(key->hw_key_idx + 64 + 32, common->keymap); } } -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; - ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | - IEEE80211_HT_CAP_SM_PS | - IEEE80211_HT_CAP_SGI_40 | - IEEE80211_HT_CAP_DSSSCCK40; - - ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; - ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; - - /* set up supported mcs set */ - memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); - 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) { - 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); - } - - ht_info->mcs.rx_mask[0] = 0xff; - if (rx_streams >= 2) - ht_info->mcs.rx_mask[1] = 0xff; - - ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; -} - static void ath9k_bss_assoc_info(struct ath_softc *sc, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf) @@ -992,7 +836,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, * on the receipt of the first Beacon frame (i.e., * after time sync with the AP). */ - sc->sc_flags |= SC_OP_BEACON_SYNC; + sc->ps_flags |= PS_BEACON_SYNC; /* Configure the beacon */ ath_beacon_config(sc, vif); @@ -1009,174 +853,6 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, } } -/********************************/ -/* LED functions */ -/********************************/ - -static void ath_led_blink_work(struct work_struct *work) -{ - struct ath_softc *sc = container_of(work, struct ath_softc, - ath_led_blink_work.work); - - if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) - return; - - if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || - (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); - else - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, - (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); - - ieee80211_queue_delayed_work(sc->hw, - &sc->ath_led_blink_work, - (sc->sc_flags & SC_OP_LED_ON) ? - msecs_to_jiffies(sc->led_off_duration) : - msecs_to_jiffies(sc->led_on_duration)); - - sc->led_on_duration = sc->led_on_cnt ? - max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : - ATH_LED_ON_DURATION_IDLE; - sc->led_off_duration = sc->led_off_cnt ? - max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : - ATH_LED_OFF_DURATION_IDLE; - sc->led_on_cnt = sc->led_off_cnt = 0; - if (sc->sc_flags & SC_OP_LED_ON) - sc->sc_flags &= ~SC_OP_LED_ON; - else - sc->sc_flags |= SC_OP_LED_ON; -} - -static void ath_led_brightness(struct led_classdev *led_cdev, - enum led_brightness brightness) -{ - struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); - struct ath_softc *sc = led->sc; - - switch (brightness) { - case LED_OFF: - if (led->led_type == ATH_LED_ASSOC || - led->led_type == ATH_LED_RADIO) { - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, - (led->led_type == ATH_LED_RADIO)); - sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; - if (led->led_type == ATH_LED_RADIO) - sc->sc_flags &= ~SC_OP_LED_ON; - } else { - sc->led_off_cnt++; - } - break; - case LED_FULL: - if (led->led_type == ATH_LED_ASSOC) { - sc->sc_flags |= SC_OP_LED_ASSOCIATED; - ieee80211_queue_delayed_work(sc->hw, - &sc->ath_led_blink_work, 0); - } else if (led->led_type == ATH_LED_RADIO) { - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); - sc->sc_flags |= SC_OP_LED_ON; - } else { - sc->led_on_cnt++; - } - break; - default: - break; - } -} - -static int ath_register_led(struct ath_softc *sc, struct ath_led *led, - char *trigger) -{ - int ret; - - led->sc = sc; - led->led_cdev.name = led->name; - led->led_cdev.default_trigger = trigger; - led->led_cdev.brightness_set = ath_led_brightness; - - ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); - if (ret) - ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, - "Failed to register led:%s", led->name); - else - led->registered = 1; - return ret; -} - -static void ath_unregister_led(struct ath_led *led) -{ - if (led->registered) { - led_classdev_unregister(&led->led_cdev); - led->registered = 0; - } -} - -static void ath_deinit_leds(struct ath_softc *sc) -{ - ath_unregister_led(&sc->assoc_led); - sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; - ath_unregister_led(&sc->tx_led); - ath_unregister_led(&sc->rx_led); - ath_unregister_led(&sc->radio_led); - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); -} - -static void ath_init_leds(struct ath_softc *sc) -{ - char *trigger; - int ret; - - if (AR_SREV_9287(sc->sc_ah)) - sc->sc_ah->led_pin = ATH_LED_PIN_9287; - else - sc->sc_ah->led_pin = ATH_LED_PIN_DEF; - - /* Configure gpio 1 for output */ - ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, - AR_GPIO_OUTPUT_MUX_AS_OUTPUT); - /* LED off, active low */ - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); - - INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); - - trigger = ieee80211_get_radio_led_name(sc->hw); - snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), - "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); - ret = ath_register_led(sc, &sc->radio_led, trigger); - sc->radio_led.led_type = ATH_LED_RADIO; - if (ret) - goto fail; - - trigger = ieee80211_get_assoc_led_name(sc->hw); - snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), - "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); - ret = ath_register_led(sc, &sc->assoc_led, trigger); - sc->assoc_led.led_type = ATH_LED_ASSOC; - if (ret) - goto fail; - - trigger = ieee80211_get_tx_led_name(sc->hw); - snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), - "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); - ret = ath_register_led(sc, &sc->tx_led, trigger); - sc->tx_led.led_type = ATH_LED_TX; - if (ret) - goto fail; - - trigger = ieee80211_get_rx_led_name(sc->hw); - snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), - "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); - ret = ath_register_led(sc, &sc->rx_led, trigger); - sc->rx_led.led_type = ATH_LED_RX; - if (ret) - goto fail; - - return; - -fail: - cancel_delayed_work_sync(&sc->ath_led_blink_work); - ath_deinit_leds(sc); -} - void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) { struct ath_hw *ah = sc->sc_ah; @@ -1194,7 +870,7 @@ void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { ath_print(common, ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) ", + "Unable to reset channel (%u MHz), " "reset status %d\n", channel->center_freq, r); } @@ -1249,7 +925,7 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) r = ath9k_hw_reset(ah, ah->curchan, false); if (r) { ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) " + "Unable to reset channel (%u MHz), " "reset status %d\n", channel->center_freq, r); } @@ -1261,711 +937,6 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); } -/*******************/ -/* Rfkill */ -/*******************/ - -static bool ath_is_rfkill_set(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - - return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == - ah->rfkill_polarity; -} - -static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) -{ - struct ath_wiphy *aphy = hw->priv; - struct ath_softc *sc = aphy->sc; - bool blocked = !!ath_is_rfkill_set(sc); - - wiphy_rfkill_set_hw_state(hw->wiphy, blocked); -} - -static void ath_start_rfkill_poll(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - - if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) - wiphy_rfkill_start_polling(sc->hw->wiphy); -} - -static void ath9k_uninit_hw(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - - BUG_ON(!ah); - - ath9k_exit_debug(ah); - ath9k_hw_detach(ah); - sc->sc_ah = NULL; -} - -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); - - dev_dbg(sc->dev, "Detach ATH hw\n"); - - ath_deinit_leds(sc); - wiphy_rfkill_stop_polling(sc->hw->wiphy); - - for (i = 0; i < sc->num_sec_wiphy; i++) { - struct ath_wiphy *aphy = sc->sec_wiphy[i]; - if (aphy == NULL) - continue; - sc->sec_wiphy[i] = NULL; - ieee80211_unregister_hw(aphy->hw); - ieee80211_free_hw(aphy->hw); - } - ieee80211_unregister_hw(hw); - ath_rx_cleanup(sc); - ath_tx_cleanup(sc); - - tasklet_kill(&sc->intr_tq); - tasklet_kill(&sc->bcon_tasklet); - - if (!(sc->sc_flags & SC_OP_INVALID)) - 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.no_stomp_timer) && - ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) - ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer); -} - -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, - struct regulatory_request *request) -{ - 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 = 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, - 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; - - spin_lock_init(&sc->wiphy_lock); - spin_lock_init(&sc->sc_resetlock); - spin_lock_init(&sc->sc_serial_rw); - spin_lock_init(&sc->ani_lock); - spin_lock_init(&sc->sc_pm_lock); - mutex_init(&sc->mutex); - tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); - tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, - (unsigned long)sc); - - ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); - if (!ah) - return -ENOMEM; - - 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) { - 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. */ - common->keymax = ah->caps.keycache_size; - if (common->keymax > ATH_KEYMAX) { - ath_print(common, ATH_DBG_ANY, - "Warning, using only %u entries in %u key cache\n", - ATH_KEYMAX, common->keymax); - common->keymax = ATH_KEYMAX; - } - - /* - * Reset the key cache since some parts do not - * reset the contents on initial power up. - */ - for (i = 0; i < common->keymax; i++) - ath9k_hw_keyreset(ah, (u16) i); - - /* default to MONITOR mode */ - sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; - - /* - * Allocate hardware transmit queues: one queue for - * beacon frames and one data queue for each QoS - * priority. Note that the hal handles reseting - * these queues at the needed time. - */ - sc->beacon.beaconq = ath9k_hw_beaconq_setup(ah); - if (sc->beacon.beaconq == -1) { - 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) { - ath_print(common, ATH_DBG_FATAL, - "Unable to setup CAB xmit queue\n"); - r = -EIO; - goto bad2; - } - - sc->config.cabqReadytime = ATH_CABQ_READY_TIME; - ath_cabq_update(sc); - - for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) - sc->tx.hwq_map[i] = -1; - - /* Setup data queues */ - /* NB: ensure BK queue is the lowest priority h/w queue */ - if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { - 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)) { - 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)) { - 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)) { - ath_print(common, ATH_DBG_FATAL, - "Unable to setup xmit queue for VO traffic\n"); - r = -EIO; - goto bad2; - } - - /* Initializes the noise floor to a reasonable default value. - * Later on this will be updated during ANI processing. */ - - common->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; - setup_timer(&common->ani.timer, ath_ani_calibrate, (unsigned long)sc); - - if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, - ATH9K_CIPHER_TKIP, NULL)) { - /* - * Whether we should enable h/w TKIP MIC. - * XXX: if we don't support WME TKIP MIC, then we wouldn't - * report WMM capable, so it's always safe to turn on - * TKIP MIC in this case. - */ - ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, - 0, 1, NULL); - } - - /* - * Check whether the separate key cache entries - * are required to handle both tx+rx MIC keys. - * With split mic keys the number of stations is limited - * to 27 otherwise 59. - */ - if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, - ATH9K_CIPHER_TKIP, NULL) - && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, - ATH9K_CIPHER_MIC, NULL) - && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, - 0, NULL)) - common->splitmic = 1; - - /* turn on mcast key search if possible */ - if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) - (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, - 1, NULL); - - sc->config.txpowlimit = ATH_TXPOWER_MAX; - - /* 11n Capabilities */ - if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { - sc->sc_flags |= SC_OP_TXAGGR; - sc->sc_flags |= SC_OP_RXAGGR; - } - - 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(common->bssidmask, ath_bcast_mac, ETH_ALEN); - - sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ - - /* initialize beacon slots */ - for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { - sc->beacon.bslot[i] = NULL; - sc->beacon.bslot_aphy[i] = NULL; - } - - /* setup channels and rates */ - - if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) { - sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; - sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; - sc->sbands[IEEE80211_BAND_2GHZ].n_channels = - ARRAY_SIZE(ath9k_2ghz_chantable); - sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates; - sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates = - ARRAY_SIZE(ath9k_legacy_rates); - } - - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { - sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; - sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; - sc->sbands[IEEE80211_BAND_5GHZ].n_channels = - ARRAY_SIZE(ath9k_5ghz_chantable); - sc->sbands[IEEE80211_BAND_5GHZ].bitrates = - ath9k_legacy_rates + 4; - sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates = - ARRAY_SIZE(ath9k_legacy_rates) - 4; - } - - 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; -bad2: - /* 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]); - -bad_free_hw: - ath9k_uninit_hw(sc); - return r; -} - -void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) -{ - hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | - IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | - IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_SUPPORTS_PS | - IEEE80211_HW_PS_NULLFUNC_STACK | - IEEE80211_HW_SPECTRUM_MGMT; - - if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) - hw->flags |= IEEE80211_HW_MFP_CAPABLE; - - hw->wiphy->interface_modes = - BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC) | - BIT(NL80211_IFTYPE_MESH_POINT); - - hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - - hw->queues = 4; - hw->max_rates = 4; - hw->channel_change_time = 5000; - hw->max_listen_interval = 10; - /* Hardware supports 10 but we use 4 */ - hw->max_rate_tries = 4; - hw->sta_data_size = sizeof(struct ath_node); - hw->vif_data_size = sizeof(struct ath_vif); - - hw->rate_control_algorithm = "ath9k_rate_control"; - - if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) - hw->wiphy->bands[IEEE80211_BAND_2GHZ] = - &sc->sbands[IEEE80211_BAND_2GHZ]; - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) - hw->wiphy->bands[IEEE80211_BAND_5GHZ] = - &sc->sbands[IEEE80211_BAND_5GHZ]; -} - -/* Device driver core initialization */ -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; - - dev_dbg(sc->dev, "Attach ATH hw\n"); - - 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, common->macaddr); - - ath_set_hw_capab(sc, hw); - - error = ath_regd_init(&common->regulatory, sc->hw->wiphy, - ath9k_reg_notifier); - if (error) - return error; - - reg = &common->regulatory; - - if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { - if (test_bit(ATH9K_MODE_11G, ah->caps.wireless_modes)) - setup_ht_cap(sc, - &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); - if (test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) - setup_ht_cap(sc, - &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); - } - - /* initialize tx/rx engine */ - error = ath_tx_init(sc, ATH_TXBUF); - if (error != 0) - goto error_attach; - - error = ath_rx_init(sc, ATH_RXBUF); - if (error != 0) - goto error_attach; - - INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); - INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); - sc->wiphy_scheduler_int = msecs_to_jiffies(500); - - error = ieee80211_register_hw(hw); - - if (!ath_is_world_regd(reg)) { - error = regulatory_hint(hw->wiphy, reg->alpha2); - if (error) - goto error_attach; - } - - /* Initialize LED control */ - ath_init_leds(sc); - - ath_start_rfkill_poll(sc); - - return 0; - -error_attach: - /* 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]); - - ath9k_uninit_hw(sc); - - return error; -} - int ath_reset(struct ath_softc *sc, bool retry_tx) { struct ath_hw *ah = sc->sc_ah; @@ -1976,6 +947,8 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) /* Stop ANI */ del_timer_sync(&common->ani.timer); + ieee80211_stop_queues(hw); + ath9k_hw_set_interrupts(ah, 0); ath_drain_all_txq(sc, retry_tx); ath_stoprecv(sc); @@ -2017,131 +990,14 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) } } + ieee80211_wake_queues(hw); + /* Start ANI */ ath_start_ani(common); return r; } -/* - * This function will allocate both the DMA descriptor structure, and the - * buffers it contains. These are used to contain the descriptors used - * by the system. -*/ -int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, - struct list_head *head, const char *name, - int nbuf, int ndesc) -{ -#define DS2PHYS(_dd, _ds) \ - ((_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; - - 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) { - ath_print(common, ATH_DBG_FATAL, - "ath_desc not DWORD aligned\n"); - BUG_ON((sizeof(struct ath_desc) % 4) != 0); - error = -ENOMEM; - goto fail; - } - - dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; - - /* - * Need additional DMA memory because we can't use - * descriptors that cross the 4K page boundary. Assume - * one skipped descriptor per 4K page. - */ - if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { - u32 ndesc_skipped = - ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); - u32 dma_len; - - while (ndesc_skipped) { - dma_len = ndesc_skipped * sizeof(struct ath_desc); - dd->dd_desc_len += dma_len; - - ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); - }; - } - - /* allocate descriptors */ - dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, - &dd->dd_desc_paddr, GFP_KERNEL); - if (dd->dd_desc == NULL) { - error = -ENOMEM; - goto fail; - } - ds = dd->dd_desc; - 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; - bf = kzalloc(bsize, GFP_KERNEL); - if (bf == NULL) { - error = -ENOMEM; - goto fail2; - } - dd->dd_bufptr = bf; - - for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { - bf->bf_desc = ds; - bf->bf_daddr = DS2PHYS(dd, ds); - - if (!(sc->sc_ah->caps.hw_caps & - ATH9K_HW_CAP_4KB_SPLITTRANS)) { - /* - * Skip descriptor addresses which can cause 4KB - * boundary crossing (addr + length) with a 32 dword - * descriptor fetch. - */ - while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { - BUG_ON((caddr_t) bf->bf_desc >= - ((caddr_t) dd->dd_desc + - dd->dd_desc_len)); - - ds += ndesc; - bf->bf_desc = ds; - bf->bf_daddr = DS2PHYS(dd, ds); - } - } - list_add_tail(&bf->list, head); - } - return 0; -fail2: - dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, - dd->dd_desc_paddr); -fail: - memset(dd, 0, sizeof(*dd)); - return error; -#undef ATH_DESC_4KB_BOUND_CHECK -#undef ATH_DESC_4KB_BOUND_NUM_SKIPPED -#undef DS2PHYS -} - -void ath_descdma_cleanup(struct ath_softc *sc, - struct ath_descdma *dd, - struct list_head *head) -{ - dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, - dd->dd_desc_paddr); - - INIT_LIST_HEAD(head); - kfree(dd->dd_bufptr); - memset(dd, 0, sizeof(*dd)); -} - int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) { int qnum; @@ -2220,28 +1076,6 @@ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, /* 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; @@ -2411,11 +1245,11 @@ static int ath9k_tx(struct ieee80211_hw *hw, if (ieee80211_is_pspoll(hdr->frame_control)) { ath_print(common, ATH_DBG_PS, "Sending PS-Poll to pick a buffered frame\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; + sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA; } else { ath_print(common, ATH_DBG_PS, "Wake up to complete TX\n"); - sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; + sc->ps_flags |= PS_WAIT_FOR_TX_ACK; } /* * The actual restore operation will happen only after @@ -2468,22 +1302,6 @@ 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; @@ -2550,12 +1368,12 @@ static void ath9k_stop(struct ieee80211_hw *hw) } static int ath9k_add_interface(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf) + struct ieee80211_vif *vif) { 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; + struct ath_vif *avp = (void *)vif->drv_priv; enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; int ret = 0; @@ -2567,7 +1385,7 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, goto out; } - switch (conf->type) { + switch (vif->type) { case NL80211_IFTYPE_STATION: ic_opmode = NL80211_IFTYPE_STATION; break; @@ -2578,11 +1396,11 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, ret = -ENOBUFS; goto out; } - ic_opmode = conf->type; + ic_opmode = vif->type; break; default: ath_print(common, ATH_DBG_FATAL, - "Interface type %d not yet supported\n", conf->type); + "Interface type %d not yet supported\n", vif->type); ret = -EOPNOTSUPP; goto out; } @@ -2614,18 +1432,18 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, * Enable MIB interrupts when there are hardware phy counters. * Note we only do this (at the moment) for station mode. */ - if ((conf->type == NL80211_IFTYPE_STATION) || - (conf->type == NL80211_IFTYPE_ADHOC) || - (conf->type == NL80211_IFTYPE_MESH_POINT)) { + if ((vif->type == NL80211_IFTYPE_STATION) || + (vif->type == NL80211_IFTYPE_ADHOC) || + (vif->type == NL80211_IFTYPE_MESH_POINT)) { sc->imask |= ATH9K_INT_MIB; sc->imask |= ATH9K_INT_TSFOOR; } ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); - if (conf->type == NL80211_IFTYPE_AP || - conf->type == NL80211_IFTYPE_ADHOC || - conf->type == NL80211_IFTYPE_MONITOR) + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC || + vif->type == NL80211_IFTYPE_MONITOR) ath_start_ani(common); out: @@ -2634,12 +1452,12 @@ out: } static void ath9k_remove_interface(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf) + struct ieee80211_vif *vif) { 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; + struct ath_vif *avp = (void *)vif->drv_priv; int i; ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); @@ -2662,7 +1480,7 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, sc->sc_flags &= ~SC_OP_BEACONS; for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { - if (sc->beacon.bslot[i] == conf->vif) { + if (sc->beacon.bslot[i] == vif) { printk(KERN_DEBUG "%s: vif had allocated beacon " "slot\n", __func__); sc->beacon.bslot[i] = NULL; @@ -2675,6 +1493,19 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, mutex_unlock(&sc->mutex); } +void ath9k_enable_ps(struct ath_softc *sc) +{ + sc->ps_enabled = true; + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { + if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { + sc->imask |= ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->imask); + } + } + ath9k_hw_setrxabort(sc->sc_ah, 1); +} + static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { struct ath_wiphy *aphy = hw->priv; @@ -2713,6 +1544,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) spin_unlock_bh(&sc->wiphy_lock); if (enable_radio) { + sc->ps_idle = false; ath_radio_enable(sc, hw); ath_print(common, ATH_DBG_CONFIG, "not-idle: enabling radio\n"); @@ -2727,36 +1559,27 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) */ if (changed & IEEE80211_CONF_CHANGE_PS) { if (conf->flags & IEEE80211_CONF_PS) { - sc->sc_flags |= SC_OP_PS_ENABLED; - if (!(ah->caps.hw_caps & - ATH9K_HW_CAP_AUTOSLEEP)) { - if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { - sc->imask |= ATH9K_INT_TIM_TIMER; - ath9k_hw_set_interrupts(sc->sc_ah, - sc->imask); - } - } + sc->ps_flags |= PS_ENABLED; /* * At this point we know hardware has received an ACK * of a previously sent null data frame. */ - if ((sc->sc_flags & SC_OP_NULLFUNC_COMPLETED)) { - sc->sc_flags &= ~SC_OP_NULLFUNC_COMPLETED; - sc->ps_enabled = true; - ath9k_hw_setrxabort(sc->sc_ah, 1); + if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) { + sc->ps_flags &= ~PS_NULLFUNC_COMPLETED; + ath9k_enable_ps(sc); } } else { sc->ps_enabled = false; - sc->sc_flags &= ~(SC_OP_PS_ENABLED | - SC_OP_NULLFUNC_COMPLETED); + sc->ps_flags &= ~(PS_ENABLED | + PS_NULLFUNC_COMPLETED); ath9k_setpower(sc, ATH9K_PM_AWAKE); if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { ath9k_hw_setrxabort(sc->sc_ah, 0); - sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | - SC_OP_WAIT_FOR_CAB | - SC_OP_WAIT_FOR_PSPOLL_DATA | - SC_OP_WAIT_FOR_TX_ACK); + sc->ps_flags &= ~(PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK); if (sc->imask & ATH9K_INT_TIM_TIMER) { sc->imask &= ~ATH9K_INT_TIM_TIMER; ath9k_hw_set_interrupts(sc->sc_ah, @@ -2766,6 +1589,14 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } } + if (changed & IEEE80211_CONF_CHANGE_MONITOR) { + if (conf->flags & IEEE80211_CONF_MONITOR) { + ath_print(common, ATH_DBG_CONFIG, + "HW opmode set to Monitor mode\n"); + sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; + } + } + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { struct ieee80211_channel *curchan = hw->conf.channel; int pos = curchan->hw_value; @@ -2801,8 +1632,10 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } skip_chan_change: - if (changed & IEEE80211_CONF_CHANGE_POWER) + if (changed & IEEE80211_CONF_CHANGE_POWER) { sc->config.txpowlimit = 2 * conf->power_level; + ath_update_txpow(sc); + } spin_lock_bh(&sc->wiphy_lock); disable_radio = ath9k_all_wiphys_idle(sc); @@ -2810,6 +1643,7 @@ skip_chan_change: if (disable_radio) { ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); + sc->ps_idle = true; ath_radio_disable(sc, hw); } @@ -2850,24 +1684,28 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw, "Set HW RX filter: 0x%x\n", rfilt); } -static void ath9k_sta_notify(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum sta_notify_cmd cmd, - struct ieee80211_sta *sta) +static int ath9k_sta_add(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - switch (cmd) { - case STA_NOTIFY_ADD: - ath_node_attach(sc, sta); - break; - case STA_NOTIFY_REMOVE: - ath_node_detach(sc, sta); - break; - default: - break; - } + ath_node_attach(sc, sta); + + return 0; +} + +static int ath9k_sta_remove(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + ath_node_detach(sc, sta); + + return 0; } static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, @@ -2966,6 +1804,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ath_vif *avp = (void *)vif->drv_priv; + int slottime; int error; mutex_lock(&sc->mutex); @@ -3001,6 +1840,25 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, ath_beacon_config(sc, vif); } + if (changed & BSS_CHANGED_ERP_SLOT) { + if (bss_conf->use_short_slot) + slottime = 9; + else + slottime = 20; + if (vif->type == NL80211_IFTYPE_AP) { + /* + * Defer update, so that connected stations can adjust + * their settings at the same time. + * See beacon.c for more details + */ + sc->beacon.slottime = slottime; + sc->beacon.updateslot = UPDATE; + } else { + ah->slottime = slottime; + ath9k_hw_init_global_settings(ah); + } + } + /* Disable transmission of beacons */ if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); @@ -3133,6 +1991,7 @@ static void ath9k_sw_scan_start(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); mutex_lock(&sc->mutex); if (ath9k_wiphy_scanning(sc)) { @@ -3148,10 +2007,9 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw) aphy->state = ATH_WIPHY_SCAN; ath9k_wiphy_pause_all_forced(sc, aphy); - - spin_lock_bh(&sc->ani_lock); sc->sc_flags |= SC_OP_SCANNING; - spin_unlock_bh(&sc->ani_lock); + del_timer_sync(&common->ani.timer); + cancel_delayed_work_sync(&sc->tx_complete_work); mutex_unlock(&sc->mutex); } @@ -3159,17 +2017,30 @@ static void ath9k_sw_scan_complete(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); mutex_lock(&sc->mutex); - spin_lock_bh(&sc->ani_lock); aphy->state = ATH_WIPHY_ACTIVE; sc->sc_flags &= ~SC_OP_SCANNING; sc->sc_flags |= SC_OP_FULL_RESET; - spin_unlock_bh(&sc->ani_lock); + ath_start_ani(common); + ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); ath_beacon_config(sc, NULL); mutex_unlock(&sc->mutex); } +static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_hw *ah = sc->sc_ah; + + mutex_lock(&sc->mutex); + ah->coverage_class = coverage_class; + ath9k_hw_init_global_settings(ah); + mutex_unlock(&sc->mutex); +} + struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, .start = ath9k_start, @@ -3178,7 +2049,8 @@ struct ieee80211_ops ath9k_ops = { .remove_interface = ath9k_remove_interface, .config = ath9k_config, .configure_filter = ath9k_configure_filter, - .sta_notify = ath9k_sta_notify, + .sta_add = ath9k_sta_add, + .sta_remove = ath9k_sta_remove, .conf_tx = ath9k_conf_tx, .bss_info_changed = ath9k_bss_info_changed, .set_key = ath9k_set_key, @@ -3189,64 +2061,5 @@ struct ieee80211_ops ath9k_ops = { .sw_scan_start = ath9k_sw_scan_start, .sw_scan_complete = ath9k_sw_scan_complete, .rfkill_poll = ath9k_rfkill_poll_state, + .set_coverage_class = ath9k_set_coverage_class, }; - -static int __init ath9k_init(void) -{ - int error; - - /* Register rate control algorithm */ - error = ath_rate_control_register(); - if (error != 0) { - printk(KERN_ERR - "ath9k: Unable to register rate control " - "algorithm: %d\n", - error); - goto err_out; - } - - error = ath9k_debug_create_root(); - if (error) { - printk(KERN_ERR - "ath9k: Unable to create debugfs root: %d\n", - error); - goto err_rate_unregister; - } - - error = ath_pci_init(); - if (error < 0) { - printk(KERN_ERR - "ath9k: No PCI devices found, driver not installed.\n"); - error = -ENODEV; - goto err_remove_root; - } - - error = ath_ahb_init(); - if (error < 0) { - error = -ENODEV; - goto err_pci_exit; - } - - return 0; - - err_pci_exit: - ath_pci_exit(); - - err_remove_root: - ath9k_debug_remove_root(); - err_rate_unregister: - ath_rate_control_unregister(); - err_out: - return error; -} -module_init(ath9k_init); - -static void __exit ath9k_exit(void) -{ - ath_ahb_exit(); - ath_pci_exit(); - ath9k_debug_remove_root(); - ath_rate_control_unregister(); - printk(KERN_INFO "%s: Driver unloaded\n", dev_info); -} -module_exit(ath9k_exit); |
