ath9k: Add a new file for GPIO

Move all LED/RFKILL/BTCOEX related code
to gpio.c

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 0 insertions, 406 deletions

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 3777b8449789..31a33cf762da 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1000,174 +1000,6 @@ 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;
@@ -1252,35 +1084,6 @@ 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;
@@ -1365,177 +1168,6 @@ static int ath9k_reg_notifier(struct wiphy *wiphy,
 }
 
 /*
- * 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
@@ -2213,28 +1845,6 @@ 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;
@@ -2461,22 +2071,6 @@ 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;