diff options
author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2009-09-09 11:00:10 (GMT) |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-10-07 20:39:20 (GMT) |
commit | 75d7839f4c4ca472bcf0b71f6f682957e19f777a (patch) | |
tree | 0eb02cbdeb44564545f8deae51bcb380be32900f /drivers/net/wireless/ath/ath9k/btcoex.c | |
parent | 7a2f0f58c865be9217356528ab6cf73feb35cb07 (diff) | |
download | linux-fsl-qoriq-75d7839f4c4ca472bcf0b71f6f682957e19f777a.tar.xz |
ath9k: move driver core helpers to main.c
Keep on btcoex.c only hardware access helpers, move the
driver core specific code to main.c. To accomplish
this we had to split ath_init_btcoex_info() into two parts,
the driver core part -- ath_init_btcoex_timer() and the hw
specific part -- ath9k_hw_init_btcoex_hw_info(). This
highlights how ath_gen_timer is part of the driver core, not
hw related, so stuff that into ath_btcoex struct.
The ath9k_hw_btcoex_init() code is now put inline on
ath_init_softc() through a switch to it easier to follow,
since we did that we can now call ath_tx_get_qnum() from
the main.c instead of btcoex.c
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/btcoex.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/btcoex.c | 214 |
1 files changed, 4 insertions, 210 deletions
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c index be69924..6209a56 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.c +++ b/drivers/net/wireless/ath/ath9k/btcoex.c @@ -43,144 +43,10 @@ bool ath_btcoex_supported(u16 subsysid) return false; } -static void ath_btcoex_set_weight(struct ath_btcoex_info *btcoex_info, - u32 bt_weight, - u32 wlan_weight) +void ath9k_hw_init_btcoex_hw_info(struct ath_hw *ah, int qnum) { - btcoex_info->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) | - SM(wlan_weight, AR_BTCOEX_WL_WGHT); -} - -void ath9k_hw_btcoex_init_weight(struct ath_hw *ah) -{ - ath_btcoex_set_weight(&ah->btcoex_info, AR_BT_COEX_WGHT, - AR_STOMP_LOW_WLAN_WGHT); -} - -/* - * 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_info.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) { - DPRINTF(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 ath_btcoex_bt_stomp(struct ath_softc *sc, - struct ath_btcoex_info *btinfo, - int stomp_type) -{ - - switch (stomp_type) { - case ATH_BTCOEX_STOMP_ALL: - ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT, - AR_STOMP_ALL_WLAN_WGHT); - break; - case ATH_BTCOEX_STOMP_LOW: - ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT, - AR_STOMP_LOW_WLAN_WGHT); - break; - case ATH_BTCOEX_STOMP_NONE: - ath_btcoex_set_weight(btinfo, AR_BT_COEX_WGHT, - AR_STOMP_NONE_WLAN_WGHT); - break; - default: - DPRINTF(sc->sc_ah, ATH_DBG_BTCOEX, "Invalid Stomptype\n"); - break; - } - - ath9k_hw_btcoex_enable(sc->sc_ah); -} - -/* - * 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; - struct ath_btcoex_info *btinfo = &ah->btcoex_info; - - ath_detect_bt_priority(sc); - - spin_lock_bh(&btcoex->btcoex_lock); - - ath_btcoex_bt_stomp(sc, btinfo, btinfo->bt_stomp_type); - - spin_unlock_bh(&btcoex->btcoex_lock); - - if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { - if (btcoex->hw_timer_enabled) - ath_gen_timer_stop(ah, btinfo->no_stomp_timer); - - ath_gen_timer_start(ah, - btinfo->no_stomp_timer, - (ath9k_hw_gettsf32(sc->sc_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; - struct ath_btcoex_info *btinfo = &ah->btcoex_info; - - DPRINTF(ah, ATH_DBG_BTCOEX, "no stomp timer running \n"); - - spin_lock_bh(&btcoex->btcoex_lock); - - if (btinfo->bt_stomp_type == ATH_BTCOEX_STOMP_LOW) - ath_btcoex_bt_stomp(sc, btinfo, ATH_BTCOEX_STOMP_NONE); - else if (btinfo->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) - ath_btcoex_bt_stomp(sc, btinfo, ATH_BTCOEX_STOMP_LOW); - - spin_unlock_bh(&btcoex->btcoex_lock); -} - -static int ath_init_btcoex_info(struct ath_hw *ah, - struct ath_btcoex_info *btcoex_info) -{ - struct ath_btcoex *btcoex = &ah->ah_sc->btcoex; + struct ath_btcoex_info *btcoex_info = &ah->btcoex_info; u32 i; - int qnum; - - qnum = ath_tx_get_qnum(ah->ah_sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE); btcoex_info->bt_coex_mode = (btcoex_info->bt_coex_mode & AR_BT_QCU_THRESH) | @@ -201,31 +67,11 @@ static int ath_init_btcoex_info(struct ath_hw *ah, btcoex_info->bt_stomp_type = ATH_BTCOEX_STOMP_LOW; - btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; - - btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * - btcoex->btcoex_period / 100; - for (i = 0; i < 32; i++) ah->hw_gen_timers.gen_timer_index[(debruijn32 << i) >> 27] = i; - - setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, - (unsigned long) ah->ah_sc); - - btcoex_info->no_stomp_timer = ath_gen_timer_alloc(ah, - ath_btcoex_no_stomp_timer, - ath_btcoex_no_stomp_timer, - (void *)ah->ah_sc, AR_FIRST_NDP_TIMER); - - if (btcoex_info->no_stomp_timer == NULL) - return -ENOMEM; - - spin_lock_init(&btcoex->btcoex_lock); - - return 0; } -static void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah) +void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah) { struct ath_btcoex_info *btcoex_info = &ah->btcoex_info; @@ -246,7 +92,7 @@ static void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah) ath9k_hw_cfg_gpio_input(ah, btcoex_info->btactive_gpio); } -static void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah) +void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah) { struct ath_btcoex_info *btcoex_info = &ah->btcoex_info; @@ -271,21 +117,6 @@ static void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah) ath9k_hw_cfg_gpio_input(ah, btcoex_info->btpriority_gpio); } -int ath9k_hw_btcoex_init(struct ath_hw *ah) -{ - struct ath_btcoex_info *btcoex_info = &ah->btcoex_info; - int ret = 0; - - if (btcoex_info->btcoex_scheme == ATH_BTCOEX_CFG_2WIRE) - ath9k_hw_btcoex_init_2wire(ah); - else { - ath9k_hw_btcoex_init_3wire(ah); - ret = ath_init_btcoex_info(ah, btcoex_info); - } - - return ret; -} - void ath9k_hw_btcoex_enable(struct ath_hw *ah) { struct ath_btcoex_info *btcoex_info = &ah->btcoex_info; @@ -336,40 +167,3 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah) ah->ah_sc->sc_flags &= ~SC_OP_BTCOEX_ENABLED; } - -/* - * Pause btcoex timer and bt duty cycle timer - */ -void ath_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) - ath_gen_timer_stop(ah, ah->btcoex_info.no_stomp_timer); - - btcoex->hw_timer_enabled = false; -} - -/* - * (Re)start btcoex timers - */ -void ath_btcoex_timer_resume(struct ath_softc *sc) -{ - struct ath_btcoex *btcoex = &sc->btcoex; - struct ath_hw *ah = sc->sc_ah; - - DPRINTF(ah, ATH_DBG_BTCOEX, "Starting btcoex timers"); - - /* make sure duty cycle timer is also stopped when resuming */ - if (btcoex->hw_timer_enabled) - ath_gen_timer_stop(sc->sc_ah, ah->btcoex_info.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); -} |