#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)
{
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;
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)))
+ !(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:
* 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;
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;
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,
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;
*/
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)
* 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:
}
}
-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)
* 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);
}
}
-/********************************/
-/* 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;
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;
/* 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);
}
}
+ 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;
/* 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;
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
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;
}
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;
goto out;
}
- switch (conf->type) {
+ switch (vif->type) {
case NL80211_IFTYPE_STATION:
ic_opmode = NL80211_IFTYPE_STATION;
break;
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;
}
* 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:
}
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");
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;
*/
if (changed & IEEE80211_CONF_CHANGE_PS) {
if (conf->flags & IEEE80211_CONF_PS) {
- sc->sc_flags |= SC_OP_PS_ENABLED;
+ sc->ps_flags |= PS_ENABLED;
if (!(ah->caps.hw_caps &
ATH9K_HW_CAP_AUTOSLEEP)) {
if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) {
* 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;
+ if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) {
+ sc->ps_flags &= ~PS_NULLFUNC_COMPLETED;
sc->ps_enabled = true;
ath9k_hw_setrxabort(sc->sc_ah, 1);
}
} 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,
}
}
+ 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;
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);
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);
{
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)) {
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);
}
{
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,
.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);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff