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author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2017-01-21 01:35:23 +0100 |
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committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2017-01-21 01:35:23 +0100 |
commit | 277568344c9a90c6c56ab436f133b16e4fdfd9fa (patch) | |
tree | a4516d41ad6f791bd1932b290e65ed5292f45e89 /drivers/net/wireless/ath/ath9k/gpio.c | |
parent | 68e6d7d60c0b35990cb8056e317ba97f0fe73047 (diff) | |
download | kernel_samsung_smdk4412-277568344c9a90c6c56ab436f133b16e4fdfd9fa.zip kernel_samsung_smdk4412-277568344c9a90c6c56ab436f133b16e4fdfd9fa.tar.gz kernel_samsung_smdk4412-277568344c9a90c6c56ab436f133b16e4fdfd9fa.tar.bz2 |
Backport ath from 3.4 kernel
net/wireless and mac80211 are already backported from a 3.4 kernel, so
it makes sense to also get ath from 3.4 (3.4.113).
Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/gpio.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/gpio.c | 149 |
1 files changed, 136 insertions, 13 deletions
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index bc713fc..fbe23de 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -48,6 +48,8 @@ void ath_init_leds(struct ath_softc *sc) sc->sc_ah->led_pin = ATH_LED_PIN_9485; else if (AR_SREV_9300(sc->sc_ah)) sc->sc_ah->led_pin = ATH_LED_PIN_9300; + else if (AR_SREV_9462(sc->sc_ah)) + sc->sc_ah->led_pin = ATH_LED_PIN_9462; else sc->sc_ah->led_pin = ATH_LED_PIN_DEF; } @@ -82,9 +84,14 @@ void ath_init_leds(struct ath_softc *sc) static bool ath_is_rfkill_set(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + bool is_blocked; - return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == + ath9k_ps_wakeup(sc); + is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == ah->rfkill_polarity; + ath9k_ps_restore(sc); + + return is_blocked; } void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) @@ -103,6 +110,8 @@ void ath_start_rfkill_poll(struct ath_softc *sc) wiphy_rfkill_start_polling(sc->hw->wiphy); } +#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT + /******************/ /* BTCOEX */ /******************/ @@ -123,12 +132,12 @@ static void ath_detect_bt_priority(struct ath_softc *sc) sc->sc_flags &= ~(SC_OP_BT_PRIORITY_DETECTED | SC_OP_BT_SCAN); /* Detect if colocated bt started scanning */ if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { - ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, + ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX, "BT scan detected\n"); sc->sc_flags |= (SC_OP_BT_SCAN | SC_OP_BT_PRIORITY_DETECTED); } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { - ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, + ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX, "BT priority traffic detected\n"); sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; } @@ -148,7 +157,8 @@ static void ath9k_gen_timer_start(struct ath_hw *ah, if ((ah->imask & ATH9K_INT_GENTIMER) == 0) { ath9k_hw_disable_interrupts(ah); ah->imask |= ATH9K_INT_GENTIMER; - ath9k_hw_set_interrupts(ah, ah->imask); + ath9k_hw_set_interrupts(ah); + ath9k_hw_enable_interrupts(ah); } } @@ -162,7 +172,8 @@ static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) if (timer_table->timer_mask.val == 0) { ath9k_hw_disable_interrupts(ah); ah->imask &= ~ATH9K_INT_GENTIMER; - ath9k_hw_set_interrupts(ah, ah->imask); + ath9k_hw_set_interrupts(ah); + ath9k_hw_enable_interrupts(ah); } } @@ -180,8 +191,8 @@ static void ath_btcoex_period_timer(unsigned long data) bool is_btscan; ath9k_ps_wakeup(sc); - ath_detect_bt_priority(sc); - + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) + ath_detect_bt_priority(sc); is_btscan = sc->sc_flags & SC_OP_BT_SCAN; spin_lock_bh(&btcoex->btcoex_lock); @@ -189,6 +200,7 @@ static void ath_btcoex_period_timer(unsigned long data) ath9k_hw_btcoex_bt_stomp(ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : btcoex->bt_stomp_type); + ath9k_hw_btcoex_enable(ah); spin_unlock_bh(&btcoex->btcoex_lock); if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { @@ -203,8 +215,9 @@ static void ath_btcoex_period_timer(unsigned long data) } ath9k_ps_restore(sc); + timer_period = btcoex->btcoex_period / 1000; mod_timer(&btcoex->period_timer, jiffies + - msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD)); + msecs_to_jiffies(timer_period)); } /* @@ -219,8 +232,7 @@ static void ath_btcoex_no_stomp_timer(void *arg) struct ath_common *common = ath9k_hw_common(ah); bool is_btscan = sc->sc_flags & SC_OP_BT_SCAN; - ath_dbg(common, ATH_DBG_BTCOEX, - "no stomp timer running\n"); + ath_dbg(common, BTCOEX, "no stomp timer running\n"); ath9k_ps_wakeup(sc); spin_lock_bh(&btcoex->btcoex_lock); @@ -230,11 +242,12 @@ static void ath_btcoex_no_stomp_timer(void *arg) else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); + ath9k_hw_btcoex_enable(ah); spin_unlock_bh(&btcoex->btcoex_lock); ath9k_ps_restore(sc); } -int ath_init_btcoex_timer(struct ath_softc *sc) +static int ath_init_btcoex_timer(struct ath_softc *sc) { struct ath_btcoex *btcoex = &sc->btcoex; @@ -268,8 +281,7 @@ void ath9k_btcoex_timer_resume(struct ath_softc *sc) struct ath_btcoex *btcoex = &sc->btcoex; struct ath_hw *ah = sc->sc_ah; - ath_dbg(ath9k_hw_common(ah), ATH_DBG_BTCOEX, - "Starting btcoex timers\n"); + ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n"); /* make sure duty cycle timer is also stopped when resuming */ if (btcoex->hw_timer_enabled) @@ -298,3 +310,114 @@ void ath9k_btcoex_timer_pause(struct ath_softc *sc) btcoex->hw_timer_enabled = false; } + +u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen) +{ + struct ath_mci_profile *mci = &sc->btcoex.mci; + u16 aggr_limit = 0; + + if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit) + aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4; + else if (sc->sc_flags & SC_OP_BT_PRIORITY_DETECTED) + aggr_limit = min((max_4ms_framelen * 3) / 8, + (u32)ATH_AMPDU_LIMIT_MAX); + + return aggr_limit; +} + +void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status) +{ + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) + if (status & ATH9K_INT_GENTIMER) + ath_gen_timer_isr(sc->sc_ah); + + if (status & ATH9K_INT_MCI) + ath_mci_intr(sc); +} + +void ath9k_start_btcoex(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) && + !ah->btcoex_hw.enabled) { + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_LOW_WLAN_WGHT); + ath9k_hw_btcoex_enable(ah); + + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) + ath9k_btcoex_timer_resume(sc); + } +} + +void ath9k_stop_btcoex(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (ah->btcoex_hw.enabled && + ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) { + ath9k_hw_btcoex_disable(ah); + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) + ath9k_btcoex_timer_pause(sc); + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_MCI) + ath_mci_flush_profile(&sc->btcoex.mci); + } +} + +void ath9k_deinit_btcoex(struct ath_softc *sc) +{ + if ((sc->btcoex.no_stomp_timer) && + ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_3WIRE) + ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer); + + if (ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_MCI) + ath_mci_cleanup(sc); +} + +int ath9k_init_btcoex(struct ath_softc *sc) +{ + struct ath_txq *txq; + struct ath_hw *ah = sc->sc_ah; + int r; + + ath9k_hw_btcoex_init_scheme(ah); + + switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) { + case ATH_BTCOEX_CFG_NONE: + break; + case ATH_BTCOEX_CFG_2WIRE: + ath9k_hw_btcoex_init_2wire(sc->sc_ah); + break; + case ATH_BTCOEX_CFG_3WIRE: + ath9k_hw_btcoex_init_3wire(sc->sc_ah); + r = ath_init_btcoex_timer(sc); + if (r) + return -1; + txq = sc->tx.txq_map[WME_AC_BE]; + ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum); + sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; + break; + case ATH_BTCOEX_CFG_MCI: + sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; + sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE; + INIT_LIST_HEAD(&sc->btcoex.mci.info); + + r = ath_mci_setup(sc); + if (r) + return r; + + ath9k_hw_btcoex_init_mci(ah); + + break; + default: + WARN_ON(1); + break; + } + + return 0; +} + +#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ |