[deliverable/linux.git] / drivers / net / wireless / ath / ath9k / gpio.c

/*
 * Copyright (c) 2008-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "ath9k.h"

/********************************/
/*	 LED functions		*/
/********************************/

#ifdef CONFIG_MAC80211_LEDS
static void ath_led_brightness(struct led_classdev *led_cdev,
			       enum led_brightness brightness)
{
	struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev);
	u32 val = (brightness == LED_OFF);

	if (sc->sc_ah->config.led_active_high)
		val = !val;

	ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val);
}

void ath_deinit_leds(struct ath_softc *sc)
{
	if (!sc->led_registered)
		return;

	ath_led_brightness(&sc->led_cdev, LED_OFF);
	led_classdev_unregister(&sc->led_cdev);
}

void ath_init_leds(struct ath_softc *sc)
{
	int ret;

	if (AR_SREV_9100(sc->sc_ah))
		return;

	if (!led_blink)
		sc->led_cdev.default_trigger =
			ieee80211_get_radio_led_name(sc->hw);

	snprintf(sc->led_name, sizeof(sc->led_name),
		"ath9k-%s", wiphy_name(sc->hw->wiphy));
	sc->led_cdev.name = sc->led_name;
	sc->led_cdev.brightness_set = ath_led_brightness;

	ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
	if (ret < 0)
		return;

	sc->led_registered = true;
}

void ath_fill_led_pin(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

	if (AR_SREV_9100(ah) || (ah->led_pin >= 0))
		return;

	if (AR_SREV_9287(ah))
		ah->led_pin = ATH_LED_PIN_9287;
	else if (AR_SREV_9485(sc->sc_ah))
		ah->led_pin = ATH_LED_PIN_9485;
	else if (AR_SREV_9300(sc->sc_ah))
		ah->led_pin = ATH_LED_PIN_9300;
	else if (AR_SREV_9462(sc->sc_ah) || AR_SREV_9565(sc->sc_ah))
		ah->led_pin = ATH_LED_PIN_9462;
	else
		ah->led_pin = ATH_LED_PIN_DEF;

	/* Configure gpio 1 for output */
	ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);

	/* LED off, active low */
	ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1);
}
#endif

/*******************/
/*	Rfkill	   */
/*******************/

static bool ath_is_rfkill_set(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;
	bool is_blocked;

	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)
{
	struct ath_softc *sc = hw->priv;
	bool blocked = !!ath_is_rfkill_set(sc);

	wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
}

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);
}

#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT

/******************/
/*     BTCOEX     */
/******************/

/*
 * 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))) {
		clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
		clear_bit(BT_OP_SCAN, &btcoex->op_flags);
		/* Detect if colocated bt started scanning */
		if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) {
			ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
				"BT scan detected\n");
			set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
			set_bit(BT_OP_SCAN, &btcoex->op_flags);
		} else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
			ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
				"BT priority traffic detected\n");
			set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
		}

		btcoex->bt_priority_cnt = 0;
		btcoex->bt_priority_time = jiffies;
	}
}

static void ath_mci_ftp_adjust(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_mci_profile *mci = &btcoex->mci;
	struct ath_hw *ah = sc->sc_ah;

	if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) {
		if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) &&
		    (mci->num_pan || mci->num_other_acl))
			ah->btcoex_hw.mci.stomp_ftp =
				(sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH);
		else
			ah->btcoex_hw.mci.stomp_ftp = false;
		btcoex->bt_wait_time = 0;
		sc->rx.num_pkts = 0;
	}
}

/*
 * 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;
	enum ath_stomp_type stomp_type;
	u32 timer_period;
	unsigned long flags;

	spin_lock_irqsave(&sc->sc_pm_lock, flags);
	if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) {
		btcoex->bt_wait_time += btcoex->btcoex_period;
		spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
		goto skip_hw_wakeup;
	}
	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);

	ath9k_mci_update_rssi(sc);

	ath9k_ps_wakeup(sc);

	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
		ath_detect_bt_priority(sc);

	if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
		ath_mci_ftp_adjust(sc);

	spin_lock_bh(&btcoex->btcoex_lock);

	stomp_type = btcoex->bt_stomp_type;
	timer_period = btcoex->btcoex_no_stomp;

	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) {
		if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) {
			stomp_type = ATH_BTCOEX_STOMP_ALL;
			timer_period = btcoex->btscan_no_stomp;
		}
	} else if (btcoex->stomp_audio >= 5) {
		stomp_type = ATH_BTCOEX_STOMP_AUDIO;
		btcoex->stomp_audio = 0;
	}

	ath9k_hw_btcoex_bt_stomp(ah, stomp_type);
	ath9k_hw_btcoex_enable(ah);

	spin_unlock_bh(&btcoex->btcoex_lock);

	if (btcoex->btcoex_period != btcoex->btcoex_no_stomp)
		mod_timer(&btcoex->no_stomp_timer,
			 jiffies + msecs_to_jiffies(timer_period));

	ath9k_ps_restore(sc);

skip_hw_wakeup:
	mod_timer(&btcoex->period_timer,
		  jiffies + msecs_to_jiffies(btcoex->btcoex_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(unsigned long arg)
{
	struct ath_softc *sc = (struct ath_softc *)arg;
	struct ath_hw *ah = sc->sc_ah;
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_common *common = ath9k_hw_common(ah);

	ath_dbg(common, BTCOEX, "no stomp timer running\n");

	ath9k_ps_wakeup(sc);
	spin_lock_bh(&btcoex->btcoex_lock);

	if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW ||
	    (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI) &&
	     test_bit(BT_OP_SCAN, &btcoex->op_flags)))
		ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
	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);
}

static int ath_init_btcoex_timer(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;

	btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD;
	btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
		btcoex->btcoex_period / 100;
	btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) *
				   btcoex->btcoex_period / 100;

	setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
			(unsigned long) sc);
	setup_timer(&btcoex->no_stomp_timer, ath_btcoex_no_stomp_timer,
			(unsigned long) sc);

	spin_lock_init(&btcoex->btcoex_lock);

	return 0;
}

/*
 * (Re)start btcoex timers
 */
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), BTCOEX, "Starting btcoex timers\n");

	/* make sure duty cycle timer is also stopped when resuming */
	del_timer_sync(&btcoex->no_stomp_timer);

	btcoex->bt_priority_cnt = 0;
	btcoex->bt_priority_time = jiffies;
	clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
	clear_bit(BT_OP_SCAN, &btcoex->op_flags);

	mod_timer(&btcoex->period_timer, jiffies);
}


/*
 * Pause btcoex timer and bt duty cycle timer
 */
void ath9k_btcoex_timer_pause(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;

	del_timer_sync(&btcoex->period_timer);
	del_timer_sync(&btcoex->no_stomp_timer);
}

void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
{
	struct ath_btcoex *btcoex = &sc->btcoex;

	del_timer_sync(&btcoex->no_stomp_timer);
}

u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	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 (test_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags))
		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)
{
	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, 0);
		else
			ath9k_hw_btcoex_set_weight(ah, 0, 0,
						   ATH_BTCOEX_STOMP_NONE);
		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) {
		if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
			ath9k_btcoex_timer_pause(sc);
		ath9k_hw_btcoex_disable(ah);
		if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
			ath_mci_flush_profile(&sc->btcoex.mci);
	}
}

void ath9k_deinit_btcoex(struct ath_softc *sc)
{
	struct ath_hw *ah = sc->sc_ah;

	if (ath9k_hw_mci_is_enabled(ah))
		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[IEEE80211_AC_BE];
		ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
		sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
		if (ath9k_hw_mci_is_enabled(ah)) {
			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;
}

static int ath9k_dump_mci_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
{
	struct ath_btcoex *btcoex = &sc->btcoex;
	struct ath_mci_profile *mci = &btcoex->mci;
	struct ath_hw *ah = sc->sc_ah;
	struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
	u32 len = 0;
	int i;

	ATH_DUMP_BTCOEX("Total BT profiles", NUM_PROF(mci));
	ATH_DUMP_BTCOEX("MGMT", mci->num_mgmt);
	ATH_DUMP_BTCOEX("SCO", mci->num_sco);
	ATH_DUMP_BTCOEX("A2DP", mci->num_a2dp);
	ATH_DUMP_BTCOEX("HID", mci->num_hid);
	ATH_DUMP_BTCOEX("PAN", mci->num_pan);
	ATH_DUMP_BTCOEX("ACL", mci->num_other_acl);
	ATH_DUMP_BTCOEX("BDR", mci->num_bdr);
	ATH_DUMP_BTCOEX("Aggr. Limit", mci->aggr_limit);
	ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
	ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
	ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
	ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
	ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx);
	ATH_DUMP_BTCOEX("Concurrent RSSI cnt", btcoex->rssi_count);

	len += scnprintf(buf + len, size - len, "BT Weights: ");
	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
		len += scnprintf(buf + len, size - len, "%08x ",
				 btcoex_hw->bt_weight[i]);
	len += scnprintf(buf + len, size - len, "\n");
	len += scnprintf(buf + len, size - len, "WLAN Weights: ");
	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
		len += scnprintf(buf + len, size - len, "%08x ",
				 btcoex_hw->wlan_weight[i]);
	len += scnprintf(buf + len, size - len, "\n");
	len += scnprintf(buf + len, size - len, "Tx Priorities: ");
	for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++)
		len += scnprintf(buf + len, size - len, "%08x ",
				btcoex_hw->tx_prio[i]);

	len += scnprintf(buf + len, size - len, "\n");

	return len;
}

static int ath9k_dump_legacy_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
{

	struct ath_btcoex *btcoex = &sc->btcoex;
	u32 len = 0;

	ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
	ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
	ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
	ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);

	return len;
}

int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
{
	if (ath9k_hw_mci_is_enabled(sc->sc_ah))
		return ath9k_dump_mci_btcoex(sc, buf, size);
	else
		return ath9k_dump_legacy_btcoex(sc, buf, size);
}

#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
Commit	Line	Data
0fca65c1	1	/*
5b68138e	2	* Copyright (c) 2008-2011 Atheros Communications Inc.
0fca65c1 S	3	*
	4	* Permission to use, copy, modify, and/or distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	11	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	13	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	14	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
	16
	17	#include "ath9k.h"
	18
	19	/********************************/
	20	/* LED functions */
	21	/********************************/
	22
0cf55c21	23	#ifdef CONFIG_MAC80211_LEDS
0fca65c1 S	24	static void ath_led_brightness(struct led_classdev *led_cdev,
	25	enum led_brightness brightness)
	26	{
0cf55c21	27	struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev);
aeeb2065 SM	28	u32 val = (brightness == LED_OFF);
	29
	30	if (sc->sc_ah->config.led_active_high)
	31	val = !val;
	32
	33	ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val);
0fca65c1 S	34	}
	35
	36	void ath_deinit_leds(struct ath_softc *sc)
	37	{
0cf55c21 FF	38	if (!sc->led_registered)
	39	return;
	40
	41	ath_led_brightness(&sc->led_cdev, LED_OFF);
	42	led_classdev_unregister(&sc->led_cdev);
0fca65c1 S	43	}
	44
	45	void ath_init_leds(struct ath_softc *sc)
	46	{
0fca65c1 S	47	int ret;
0fca65c1 S	48
7b27ba4e FF	49	if (AR_SREV_9100(sc->sc_ah))
	50	return;
	51
0cf55c21 FF	52	if (!led_blink)
	53	sc->led_cdev.default_trigger =
	54	ieee80211_get_radio_led_name(sc->hw);
	55
	56	snprintf(sc->led_name, sizeof(sc->led_name),
	57	"ath9k-%s", wiphy_name(sc->hw->wiphy));
	58	sc->led_cdev.name = sc->led_name;
	59	sc->led_cdev.brightness_set = ath_led_brightness;
	60
	61	ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev);
	62	if (ret < 0)
	63	return;
	64
	65	sc->led_registered = true;
0fca65c1	66	}
8f176a3a RM	67
	68	void ath_fill_led_pin(struct ath_softc *sc)
	69	{
	70	struct ath_hw *ah = sc->sc_ah;
	71
	72	if (AR_SREV_9100(ah) \|\| (ah->led_pin >= 0))
	73	return;
	74
	75	if (AR_SREV_9287(ah))
	76	ah->led_pin = ATH_LED_PIN_9287;
	77	else if (AR_SREV_9485(sc->sc_ah))
	78	ah->led_pin = ATH_LED_PIN_9485;
	79	else if (AR_SREV_9300(sc->sc_ah))
	80	ah->led_pin = ATH_LED_PIN_9300;
	81	else if (AR_SREV_9462(sc->sc_ah) \|\| AR_SREV_9565(sc->sc_ah))
	82	ah->led_pin = ATH_LED_PIN_9462;
	83	else
	84	ah->led_pin = ATH_LED_PIN_DEF;
	85
	86	/* Configure gpio 1 for output */
	87	ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
	88
	89	/* LED off, active low */
aeeb2065	90	ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1);
8f176a3a	91	}
0cf55c21	92	#endif
0fca65c1 S	93
	94	/*******************/
	95	/* Rfkill */
	96	/*******************/
	97
	98	static bool ath_is_rfkill_set(struct ath_softc *sc)
	99	{
	100	struct ath_hw *ah = sc->sc_ah;
90826313	101	bool is_blocked;
0fca65c1	102
90826313 MSS	103	ath9k_ps_wakeup(sc);
90826313 MSS	104	is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) ==
0fca65c1	105	ah->rfkill_polarity;
90826313 MSS	106	ath9k_ps_restore(sc);
	107
	108	return is_blocked;
0fca65c1 S	109	}
	110
	111	void ath9k_rfkill_poll_state(struct ieee80211_hw *hw)
	112	{
9ac58615	113	struct ath_softc *sc = hw->priv;
0fca65c1 S	114	bool blocked = !!ath_is_rfkill_set(sc);
	115
	116	wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
	117	}
	118
	119	void ath_start_rfkill_poll(struct ath_softc *sc)
	120	{
	121	struct ath_hw *ah = sc->sc_ah;
	122
	123	if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
	124	wiphy_rfkill_start_polling(sc->hw->wiphy);
	125	}
	126
4daa7760 SM	127	#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
4daa7760 SM	128
0fca65c1 S	129	/******************/
	130	/* BTCOEX */
	131	/******************/
	132
	133	/*
	134	* Detects if there is any priority bt traffic
	135	*/
	136	static void ath_detect_bt_priority(struct ath_softc *sc)
	137	{
	138	struct ath_btcoex *btcoex = &sc->btcoex;
	139	struct ath_hw *ah = sc->sc_ah;
	140
	141	if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio))
	142	btcoex->bt_priority_cnt++;
	143
	144	if (time_after(jiffies, btcoex->bt_priority_time +
	145	msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
e6930c4b SM	146	clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
e6930c4b SM	147	clear_bit(BT_OP_SCAN, &btcoex->op_flags);
58da1318 VT	148	/* Detect if colocated bt started scanning */
58da1318 VT	149	if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) {
d2182b69	150	ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
226afe68	151	"BT scan detected\n");
e6930c4b SM	152	set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
e6930c4b SM	153	set_bit(BT_OP_SCAN, &btcoex->op_flags);
58da1318	154	} else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
d2182b69	155	ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX,
226afe68	156	"BT priority traffic detected\n");
e6930c4b	157	set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
0fca65c1 S	158	}
	159
	160	btcoex->bt_priority_cnt = 0;
	161	btcoex->bt_priority_time = jiffies;
	162	}
	163	}
	164
78b1775b SM	165	static void ath_mci_ftp_adjust(struct ath_softc *sc)
	166	{
	167	struct ath_btcoex *btcoex = &sc->btcoex;
	168	struct ath_mci_profile *mci = &btcoex->mci;
	169	struct ath_hw *ah = sc->sc_ah;
	170
78b1775b SM	171	if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) {
	172	if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) &&
	173	(mci->num_pan \|\| mci->num_other_acl))
	174	ah->btcoex_hw.mci.stomp_ftp =
	175	(sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH);
	176	else
	177	ah->btcoex_hw.mci.stomp_ftp = false;
	178	btcoex->bt_wait_time = 0;
	179	sc->rx.num_pkts = 0;
	180	}
	181	}
	182
0fca65c1 S	183	/*
	184	* This is the master bt coex timer which runs for every
	185	* 45ms, bt traffic will be given priority during 55% of this
	186	* period while wlan gets remaining 45%
	187	*/
	188	static void ath_btcoex_period_timer(unsigned long data)
	189	{
	190	struct ath_softc sc = (struct ath_softc ) data;
	191	struct ath_hw *ah = sc->sc_ah;
	192	struct ath_btcoex *btcoex = &sc->btcoex;
750f32cf	193	enum ath_stomp_type stomp_type;
58da1318	194	u32 timer_period;
08d4df41 RM	195	unsigned long flags;
	196
	197	spin_lock_irqsave(&sc->sc_pm_lock, flags);
	198	if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) {
be41b052	199	btcoex->bt_wait_time += btcoex->btcoex_period;
08d4df41 RM	200	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
	201	goto skip_hw_wakeup;
	202	}
	203	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
0fca65c1	204
e82cb03f RM	205	ath9k_mci_update_rssi(sc);
e82cb03f RM	206
a039a993	207	ath9k_ps_wakeup(sc);
750f32cf	208
7dc181c2 RM	209	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
7dc181c2 RM	210	ath_detect_bt_priority(sc);
58da1318	211
78b1775b SM	212	if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
78b1775b SM	213	ath_mci_ftp_adjust(sc);
6995fb80	214
0fca65c1 S	215	spin_lock_bh(&btcoex->btcoex_lock);
0fca65c1 S	216
750f32cf SM	217	stomp_type = btcoex->bt_stomp_type;
	218	timer_period = btcoex->btcoex_no_stomp;
	219
	220	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) {
	221	if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) {
	222	stomp_type = ATH_BTCOEX_STOMP_ALL;
	223	timer_period = btcoex->btscan_no_stomp;
	224	}
2884561a RM	225	} else if (btcoex->stomp_audio >= 5) {
	226	stomp_type = ATH_BTCOEX_STOMP_AUDIO;
	227	btcoex->stomp_audio = 0;
750f32cf	228	}
0fca65c1	229
750f32cf	230	ath9k_hw_btcoex_bt_stomp(ah, stomp_type);
bc6d5c29	231	ath9k_hw_btcoex_enable(ah);
750f32cf	232
0fca65c1 S	233	spin_unlock_bh(&btcoex->btcoex_lock);
0fca65c1 S	234
168c6f89 FF	235	if (btcoex->btcoex_period != btcoex->btcoex_no_stomp)
	236	mod_timer(&btcoex->no_stomp_timer,
	237	jiffies + msecs_to_jiffies(timer_period));
0fca65c1	238
a039a993	239	ath9k_ps_restore(sc);
750f32cf	240
08d4df41	241	skip_hw_wakeup:
750f32cf SM	242	mod_timer(&btcoex->period_timer,
750f32cf SM	243	jiffies + msecs_to_jiffies(btcoex->btcoex_period));
0fca65c1 S	244	}
	245
	246	/*
	247	* Generic tsf based hw timer which configures weight
	248	* registers to time slice between wlan and bt traffic
	249	*/
168c6f89	250	static void ath_btcoex_no_stomp_timer(unsigned long arg)
0fca65c1 S	251	{
	252	struct ath_softc sc = (struct ath_softc )arg;
	253	struct ath_hw *ah = sc->sc_ah;
	254	struct ath_btcoex *btcoex = &sc->btcoex;
d99eeb87	255	struct ath_common *common = ath9k_hw_common(ah);
0fca65c1	256
d2182b69	257	ath_dbg(common, BTCOEX, "no stomp timer running\n");
0fca65c1	258
a039a993	259	ath9k_ps_wakeup(sc);
0fca65c1 S	260	spin_lock_bh(&btcoex->btcoex_lock);
0fca65c1 S	261
e6930c4b	262	if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW \|\|
750f32cf SM	263	(!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI) &&
750f32cf SM	264	test_bit(BT_OP_SCAN, &btcoex->op_flags)))
978f78bf	265	ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
2884561a	266	else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
978f78bf	267	ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW);
0fca65c1	268
bc6d5c29	269	ath9k_hw_btcoex_enable(ah);
0fca65c1	270	spin_unlock_bh(&btcoex->btcoex_lock);
a039a993	271	ath9k_ps_restore(sc);
0fca65c1 S	272	}
0fca65c1 S	273
df198b17	274	static int ath_init_btcoex_timer(struct ath_softc *sc)
0fca65c1 S	275	{
	276	struct ath_btcoex *btcoex = &sc->btcoex;
	277
dfd0587a	278	btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD;
168c6f89	279	btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) *
0fca65c1	280	btcoex->btcoex_period / 100;
168c6f89	281	btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) *
58da1318	282	btcoex->btcoex_period / 100;
0fca65c1 S	283
	284	setup_timer(&btcoex->period_timer, ath_btcoex_period_timer,
	285	(unsigned long) sc);
168c6f89 FF	286	setup_timer(&btcoex->no_stomp_timer, ath_btcoex_no_stomp_timer,
168c6f89 FF	287	(unsigned long) sc);
0fca65c1 S	288
	289	spin_lock_init(&btcoex->btcoex_lock);
	290
0fca65c1 S	291	return 0;
	292	}
	293
	294	/*
	295	* (Re)start btcoex timers
	296	*/
	297	void ath9k_btcoex_timer_resume(struct ath_softc *sc)
	298	{
	299	struct ath_btcoex *btcoex = &sc->btcoex;
	300	struct ath_hw *ah = sc->sc_ah;
	301
d2182b69	302	ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n");
0fca65c1 S	303
0fca65c1 S	304	/* make sure duty cycle timer is also stopped when resuming */
168c6f89	305	del_timer_sync(&btcoex->no_stomp_timer);
0fca65c1 S	306
	307	btcoex->bt_priority_cnt = 0;
	308	btcoex->bt_priority_time = jiffies;
c11216d1 MSS	309	clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags);
c11216d1 MSS	310	clear_bit(BT_OP_SCAN, &btcoex->op_flags);
0fca65c1 S	311
	312	mod_timer(&btcoex->period_timer, jiffies);
	313	}
	314
	315
	316	/*
	317	* Pause btcoex timer and bt duty cycle timer
	318	*/
	319	void ath9k_btcoex_timer_pause(struct ath_softc *sc)
	320	{
	321	struct ath_btcoex *btcoex = &sc->btcoex;
0fca65c1 S	322
0fca65c1 S	323	del_timer_sync(&btcoex->period_timer);
168c6f89	324	del_timer_sync(&btcoex->no_stomp_timer);
0fca65c1	325	}
5908120f	326
08d4df41 RM	327	void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
	328	{
	329	struct ath_btcoex *btcoex = &sc->btcoex;
	330
168c6f89	331	del_timer_sync(&btcoex->no_stomp_timer);
08d4df41 RM	332	}
08d4df41 RM	333
c0ac53fa SM	334	u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
c0ac53fa SM	335	{
e6930c4b	336	struct ath_btcoex *btcoex = &sc->btcoex;
c0ac53fa SM	337	struct ath_mci_profile *mci = &sc->btcoex.mci;
	338	u16 aggr_limit = 0;
	339
	340	if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit)
	341	aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4;
e6930c4b	342	else if (test_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags))
c0ac53fa SM	343	aggr_limit = min((max_4ms_framelen * 3) / 8,
	344	(u32)ATH_AMPDU_LIMIT_MAX);
	345
	346	return aggr_limit;
	347	}
	348
56ca0dba SM	349	void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status)
56ca0dba SM	350	{
9a15858f	351	if (status & ATH9K_INT_MCI)
56ca0dba SM	352	ath_mci_intr(sc);
	353	}
	354
df198b17 SM	355	void ath9k_start_btcoex(struct ath_softc *sc)
	356	{
	357	struct ath_hw *ah = sc->sc_ah;
	358
	359	if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
	360	!ah->btcoex_hw.enabled) {
	361	if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
	362	ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
5160b46f SM	363	AR_STOMP_LOW_WLAN_WGHT, 0);
	364	else
	365	ath9k_hw_btcoex_set_weight(ah, 0, 0,
	366	ATH_BTCOEX_STOMP_NONE);
df198b17 SM	367	ath9k_hw_btcoex_enable(ah);
	368
	369	if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
	370	ath9k_btcoex_timer_resume(sc);
	371	}
	372	}
	373
	374	void ath9k_stop_btcoex(struct ath_softc *sc)
	375	{
	376	struct ath_hw *ah = sc->sc_ah;
	377
	378	if (ah->btcoex_hw.enabled &&
	379	ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
df198b17 SM	380	if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE)
df198b17 SM	381	ath9k_btcoex_timer_pause(sc);
c32cdbd8	382	ath9k_hw_btcoex_disable(ah);
6a73f507	383	if (AR_SREV_9462(ah) \|\| AR_SREV_9565(ah))
bff2ec2b	384	ath_mci_flush_profile(&sc->btcoex.mci);
df198b17 SM	385	}
	386	}
	387
5908120f SM	388	void ath9k_deinit_btcoex(struct ath_softc *sc)
5908120f SM	389	{
dd89f05a MSS	390	struct ath_hw *ah = sc->sc_ah;
dd89f05a MSS	391
dd89f05a	392	if (ath9k_hw_mci_is_enabled(ah))
5908120f SM	393	ath_mci_cleanup(sc);
	394	}
	395
	396	int ath9k_init_btcoex(struct ath_softc *sc)
	397	{
	398	struct ath_txq *txq;
	399	struct ath_hw *ah = sc->sc_ah;
	400	int r;
	401
d68475de SM	402	ath9k_hw_btcoex_init_scheme(ah);
d68475de SM	403
5908120f SM	404	switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) {
	405	case ATH_BTCOEX_CFG_NONE:
	406	break;
	407	case ATH_BTCOEX_CFG_2WIRE:
	408	ath9k_hw_btcoex_init_2wire(sc->sc_ah);
	409	break;
	410	case ATH_BTCOEX_CFG_3WIRE:
	411	ath9k_hw_btcoex_init_3wire(sc->sc_ah);
	412	r = ath_init_btcoex_timer(sc);
	413	if (r)
	414	return -1;
bea843c7	415	txq = sc->tx.txq_map[IEEE80211_AC_BE];
5908120f SM	416	ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
5908120f SM	417	sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
81294489	418	if (ath9k_hw_mci_is_enabled(ah)) {
0466e254 RM	419	sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE;
0466e254 RM	420	INIT_LIST_HEAD(&sc->btcoex.mci.info);
5908120f	421
0466e254 RM	422	r = ath_mci_setup(sc);
	423	if (r)
	424	return r;
5908120f	425
0466e254 RM	426	ath9k_hw_btcoex_init_mci(ah);
0466e254 RM	427	}
5908120f SM	428
	429	break;
	430	default:
	431	WARN_ON(1);
	432	break;
	433	}
	434
	435	return 0;
	436	}
4daa7760	437
ac46ba43	438	static int ath9k_dump_mci_btcoex(struct ath_softc sc, u8 buf, u32 size)
4df50ca8	439	{
4df50ca8 RM	440	struct ath_btcoex *btcoex = &sc->btcoex;
	441	struct ath_mci_profile *mci = &btcoex->mci;
	442	struct ath_hw *ah = sc->sc_ah;
	443	struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
ac46ba43	444	u32 len = 0;
4df50ca8 RM	445	int i;
	446
	447	ATH_DUMP_BTCOEX("Total BT profiles", NUM_PROF(mci));
ac46ba43 SM	448	ATH_DUMP_BTCOEX("MGMT", mci->num_mgmt);
	449	ATH_DUMP_BTCOEX("SCO", mci->num_sco);
	450	ATH_DUMP_BTCOEX("A2DP", mci->num_a2dp);
	451	ATH_DUMP_BTCOEX("HID", mci->num_hid);
	452	ATH_DUMP_BTCOEX("PAN", mci->num_pan);
	453	ATH_DUMP_BTCOEX("ACL", mci->num_other_acl);
	454	ATH_DUMP_BTCOEX("BDR", mci->num_bdr);
4df50ca8 RM	455	ATH_DUMP_BTCOEX("Aggr. Limit", mci->aggr_limit);
	456	ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
	457	ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
	458	ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
	459	ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
	460	ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx);
ac46ba43 SM	461	ATH_DUMP_BTCOEX("Concurrent RSSI cnt", btcoex->rssi_count);
ac46ba43 SM	462
5e88ba62	463	len += scnprintf(buf + len, size - len, "BT Weights: ");
4df50ca8	464	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
5e88ba62 ZK	465	len += scnprintf(buf + len, size - len, "%08x ",
	466	btcoex_hw->bt_weight[i]);
	467	len += scnprintf(buf + len, size - len, "\n");
	468	len += scnprintf(buf + len, size - len, "WLAN Weights: ");
4df50ca8	469	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
5e88ba62 ZK	470	len += scnprintf(buf + len, size - len, "%08x ",
	471	btcoex_hw->wlan_weight[i]);
	472	len += scnprintf(buf + len, size - len, "\n");
	473	len += scnprintf(buf + len, size - len, "Tx Priorities: ");
4df50ca8	474	for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++)
5e88ba62	475	len += scnprintf(buf + len, size - len, "%08x ",
4df50ca8	476	btcoex_hw->tx_prio[i]);
ac46ba43	477
5e88ba62	478	len += scnprintf(buf + len, size - len, "\n");
4df50ca8 RM	479
	480	return len;
	481	}
ac46ba43 SM	482
	483	static int ath9k_dump_legacy_btcoex(struct ath_softc sc, u8 buf, u32 size)
	484	{
	485
	486	struct ath_btcoex *btcoex = &sc->btcoex;
	487	u32 len = 0;
	488
	489	ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
	490	ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
	491	ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
	492	ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
	493
	494	return len;
	495	}
	496
	497	int ath9k_dump_btcoex(struct ath_softc sc, u8 buf, u32 size)
	498	{
	499	if (ath9k_hw_mci_is_enabled(sc->sc_ah))
	500	return ath9k_dump_mci_btcoex(sc, buf, size);
	501	else
	502	return ath9k_dump_legacy_btcoex(sc, buf, size);
	503	}
	504
4daa7760	505	#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */