ath9k_htc: Move LED/RFKILL code to htc_drv_gpio.c (1e1f4ad2) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/net/wireless/ath/ath9k/htc.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -459,8 +459,13 @@ void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
		void ath9k_ps_work(struct work_struct *work);
		bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
		enum ath9k_power_mode mode);
		void ath_update_txpow(struct ath9k_htc_priv *priv);

		void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
		void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
		void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
		void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
		void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv);
		void ath9k_init_leds(struct ath9k_htc_priv *priv);
		void ath9k_deinit_leds(struct ath9k_htc_priv *priv);

drivers/net/wireless/ath/ath9k/htc_drv_gpio.c

+327 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2010 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 "htc.h"

		/******************/
		@@ -131,3 +147,314 @@ void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv)
		cancel_delayed_work_sync(&priv->coex_period_work);
		cancel_delayed_work_sync(&priv->duty_cycle_work);
		}

		/*******/
		/* LED */
		/*******/

		static void ath9k_led_blink_work(struct work_struct *work)
		{
		struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv,
		ath9k_led_blink_work.work);

		if (!(priv->op_flags & OP_LED_ASSOCIATED))
		return;

		if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) \|\|
		(priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
		else
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
		(priv->op_flags & OP_LED_ON) ? 1 : 0);

		ieee80211_queue_delayed_work(priv->hw,
		&priv->ath9k_led_blink_work,
		(priv->op_flags & OP_LED_ON) ?
		msecs_to_jiffies(priv->led_off_duration) :
		msecs_to_jiffies(priv->led_on_duration));

		priv->led_on_duration = priv->led_on_cnt ?
		max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) :
		ATH_LED_ON_DURATION_IDLE;
		priv->led_off_duration = priv->led_off_cnt ?
		max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) :
		ATH_LED_OFF_DURATION_IDLE;
		priv->led_on_cnt = priv->led_off_cnt = 0;

		if (priv->op_flags & OP_LED_ON)
		priv->op_flags &= ~OP_LED_ON;
		else
		priv->op_flags \|= OP_LED_ON;
		}

		static void ath9k_led_brightness_work(struct work_struct *work)
		{
		struct ath_led *led = container_of(work, struct ath_led,
		brightness_work.work);
		struct ath9k_htc_priv *priv = led->priv;

		switch (led->brightness) {
		case LED_OFF:
		if (led->led_type == ATH_LED_ASSOC \|\|
		led->led_type == ATH_LED_RADIO) {
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
		(led->led_type == ATH_LED_RADIO));
		priv->op_flags &= ~OP_LED_ASSOCIATED;
		if (led->led_type == ATH_LED_RADIO)
		priv->op_flags &= ~OP_LED_ON;
		} else {
		priv->led_off_cnt++;
		}
		break;
		case LED_FULL:
		if (led->led_type == ATH_LED_ASSOC) {
		priv->op_flags \|= OP_LED_ASSOCIATED;
		ieee80211_queue_delayed_work(priv->hw,
		&priv->ath9k_led_blink_work, 0);
		} else if (led->led_type == ATH_LED_RADIO) {
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
		priv->op_flags \|= OP_LED_ON;
		} else {
		priv->led_on_cnt++;
		}
		break;
		default:
		break;
		}
		}

		static void ath9k_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 ath9k_htc_priv *priv = led->priv;

		led->brightness = brightness;
		if (!(priv->op_flags & OP_LED_DEINIT))
		ieee80211_queue_delayed_work(priv->hw,
		&led->brightness_work, 0);
		}

		void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv)
		{
		cancel_delayed_work_sync(&priv->radio_led.brightness_work);
		cancel_delayed_work_sync(&priv->assoc_led.brightness_work);
		cancel_delayed_work_sync(&priv->tx_led.brightness_work);
		cancel_delayed_work_sync(&priv->rx_led.brightness_work);
		}

		static int ath9k_register_led(struct ath9k_htc_priv priv, struct ath_led led,
		char *trigger)
		{
		int ret;

		led->priv = priv;
		led->led_cdev.name = led->name;
		led->led_cdev.default_trigger = trigger;
		led->led_cdev.brightness_set = ath9k_led_brightness;

		ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev);
		if (ret)
		ath_err(ath9k_hw_common(priv->ah),
		"Failed to register led:%s", led->name);
		else
		led->registered = 1;

		INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work);

		return ret;
		}

		static void ath9k_unregister_led(struct ath_led *led)
		{
		if (led->registered) {
		led_classdev_unregister(&led->led_cdev);
		led->registered = 0;
		}
		}

		void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
		{
		priv->op_flags \|= OP_LED_DEINIT;
		ath9k_unregister_led(&priv->assoc_led);
		priv->op_flags &= ~OP_LED_ASSOCIATED;
		ath9k_unregister_led(&priv->tx_led);
		ath9k_unregister_led(&priv->rx_led);
		ath9k_unregister_led(&priv->radio_led);
		}

		void ath9k_init_leds(struct ath9k_htc_priv *priv)
		{
		char *trigger;
		int ret;

		if (AR_SREV_9287(priv->ah))
		priv->ah->led_pin = ATH_LED_PIN_9287;
		else if (AR_SREV_9271(priv->ah))
		priv->ah->led_pin = ATH_LED_PIN_9271;
		else if (AR_DEVID_7010(priv->ah))
		priv->ah->led_pin = ATH_LED_PIN_7010;
		else
		priv->ah->led_pin = ATH_LED_PIN_DEF;

		/* Configure gpio 1 for output */
		ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
		AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
		/* LED off, active low */
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);

		INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work);

		trigger = ieee80211_get_radio_led_name(priv->hw);
		snprintf(priv->radio_led.name, sizeof(priv->radio_led.name),
		"ath9k-%s::radio", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->radio_led, trigger);
		priv->radio_led.led_type = ATH_LED_RADIO;
		if (ret)
		goto fail;

		trigger = ieee80211_get_assoc_led_name(priv->hw);
		snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name),
		"ath9k-%s::assoc", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->assoc_led, trigger);
		priv->assoc_led.led_type = ATH_LED_ASSOC;
		if (ret)
		goto fail;

		trigger = ieee80211_get_tx_led_name(priv->hw);
		snprintf(priv->tx_led.name, sizeof(priv->tx_led.name),
		"ath9k-%s::tx", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->tx_led, trigger);
		priv->tx_led.led_type = ATH_LED_TX;
		if (ret)
		goto fail;

		trigger = ieee80211_get_rx_led_name(priv->hw);
		snprintf(priv->rx_led.name, sizeof(priv->rx_led.name),
		"ath9k-%s::rx", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->rx_led, trigger);
		priv->rx_led.led_type = ATH_LED_RX;
		if (ret)
		goto fail;

		priv->op_flags &= ~OP_LED_DEINIT;

		return;

		fail:
		cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
		ath9k_deinit_leds(priv);
		}

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

		static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv)
		{
		return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) ==
		priv->ah->rfkill_polarity;
		}

		void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw)
		{
		struct ath9k_htc_priv *priv = hw->priv;
		bool blocked = !!ath_is_rfkill_set(priv);

		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
		}

		void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv)
		{
		if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
		wiphy_rfkill_start_polling(priv->hw->wiphy);
		}

		void ath9k_htc_radio_enable(struct ieee80211_hw *hw)
		{
		struct ath9k_htc_priv *priv = hw->priv;
		struct ath_hw *ah = priv->ah;
		struct ath_common *common = ath9k_hw_common(ah);
		int ret;
		u8 cmd_rsp;

		if (!ah->curchan)
		ah->curchan = ath9k_cmn_get_curchannel(hw, ah);

		/* Reset the HW */
		ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
		if (ret) {
		ath_err(common,
		"Unable to reset hardware; reset status %d (freq %u MHz)\n",
		ret, ah->curchan->channel);
		}

		ath_update_txpow(priv);

		/* Start RX */
		WMI_CMD(WMI_START_RECV_CMDID);
		ath9k_host_rx_init(priv);

		/* Start TX */
		htc_start(priv->htc);
		spin_lock_bh(&priv->tx_lock);
		priv->tx_queues_stop = false;
		spin_unlock_bh(&priv->tx_lock);
		ieee80211_wake_queues(hw);

		WMI_CMD(WMI_ENABLE_INTR_CMDID);

		/* Enable LED */
		ath9k_hw_cfg_output(ah, ah->led_pin,
		AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
		ath9k_hw_set_gpio(ah, ah->led_pin, 0);
		}

		void ath9k_htc_radio_disable(struct ieee80211_hw *hw)
		{
		struct ath9k_htc_priv *priv = hw->priv;
		struct ath_hw *ah = priv->ah;
		struct ath_common *common = ath9k_hw_common(ah);
		int ret;
		u8 cmd_rsp;

		ath9k_htc_ps_wakeup(priv);

		/* Disable LED */
		ath9k_hw_set_gpio(ah, ah->led_pin, 1);
		ath9k_hw_cfg_gpio_input(ah, ah->led_pin);

		WMI_CMD(WMI_DISABLE_INTR_CMDID);

		/* Stop TX */
		ieee80211_stop_queues(hw);
		htc_stop(priv->htc);
		WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
		skb_queue_purge(&priv->tx_queue);

		/* Stop RX */
		WMI_CMD(WMI_STOP_RECV_CMDID);

		/*
		* The MIB counters have to be disabled here,
		* since the target doesn't do it.
		*/
		ath9k_hw_disable_mib_counters(ah);

		if (!ah->curchan)
		ah->curchan = ath9k_cmn_get_curchannel(hw, ah);

		/* Reset the HW */
		ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
		if (ret) {
		ath_err(common,
		"Unable to reset hardware; reset status %d (freq %u MHz)\n",
		ret, ah->curchan->channel);
		}

		/* Disable the PHY */
		ath9k_hw_phy_disable(ah);

		ath9k_htc_ps_restore(priv);
		ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
		}

drivers/net/wireless/ath/ath9k/htc_drv_main.c

+1 −312

Original line number	Diff line number	Diff line
		@@ -24,7 +24,7 @@ static struct dentry *ath9k_debugfs_root;
		/* Utilities */
		/*************/

		static void ath_update_txpow(struct ath9k_htc_priv *priv)
		void ath_update_txpow(struct ath9k_htc_priv *priv)
		{
		struct ath_hw *ah = priv->ah;

		@@ -840,317 +840,6 @@ set_timer:
		msecs_to_jiffies(cal_interval));
		}

		/*******/
		/* LED */
		/*******/

		static void ath9k_led_blink_work(struct work_struct *work)
		{
		struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv,
		ath9k_led_blink_work.work);

		if (!(priv->op_flags & OP_LED_ASSOCIATED))
		return;

		if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) \|\|
		(priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
		else
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
		(priv->op_flags & OP_LED_ON) ? 1 : 0);

		ieee80211_queue_delayed_work(priv->hw,
		&priv->ath9k_led_blink_work,
		(priv->op_flags & OP_LED_ON) ?
		msecs_to_jiffies(priv->led_off_duration) :
		msecs_to_jiffies(priv->led_on_duration));

		priv->led_on_duration = priv->led_on_cnt ?
		max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) :
		ATH_LED_ON_DURATION_IDLE;
		priv->led_off_duration = priv->led_off_cnt ?
		max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) :
		ATH_LED_OFF_DURATION_IDLE;
		priv->led_on_cnt = priv->led_off_cnt = 0;

		if (priv->op_flags & OP_LED_ON)
		priv->op_flags &= ~OP_LED_ON;
		else
		priv->op_flags \|= OP_LED_ON;
		}

		static void ath9k_led_brightness_work(struct work_struct *work)
		{
		struct ath_led *led = container_of(work, struct ath_led,
		brightness_work.work);
		struct ath9k_htc_priv *priv = led->priv;

		switch (led->brightness) {
		case LED_OFF:
		if (led->led_type == ATH_LED_ASSOC \|\|
		led->led_type == ATH_LED_RADIO) {
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
		(led->led_type == ATH_LED_RADIO));
		priv->op_flags &= ~OP_LED_ASSOCIATED;
		if (led->led_type == ATH_LED_RADIO)
		priv->op_flags &= ~OP_LED_ON;
		} else {
		priv->led_off_cnt++;
		}
		break;
		case LED_FULL:
		if (led->led_type == ATH_LED_ASSOC) {
		priv->op_flags \|= OP_LED_ASSOCIATED;
		ieee80211_queue_delayed_work(priv->hw,
		&priv->ath9k_led_blink_work, 0);
		} else if (led->led_type == ATH_LED_RADIO) {
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
		priv->op_flags \|= OP_LED_ON;
		} else {
		priv->led_on_cnt++;
		}
		break;
		default:
		break;
		}
		}

		static void ath9k_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 ath9k_htc_priv *priv = led->priv;

		led->brightness = brightness;
		if (!(priv->op_flags & OP_LED_DEINIT))
		ieee80211_queue_delayed_work(priv->hw,
		&led->brightness_work, 0);
		}

		static void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv)
		{
		cancel_delayed_work_sync(&priv->radio_led.brightness_work);
		cancel_delayed_work_sync(&priv->assoc_led.brightness_work);
		cancel_delayed_work_sync(&priv->tx_led.brightness_work);
		cancel_delayed_work_sync(&priv->rx_led.brightness_work);
		}

		static int ath9k_register_led(struct ath9k_htc_priv priv, struct ath_led led,
		char *trigger)
		{
		int ret;

		led->priv = priv;
		led->led_cdev.name = led->name;
		led->led_cdev.default_trigger = trigger;
		led->led_cdev.brightness_set = ath9k_led_brightness;

		ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev);
		if (ret)
		ath_err(ath9k_hw_common(priv->ah),
		"Failed to register led:%s", led->name);
		else
		led->registered = 1;

		INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work);

		return ret;
		}

		static void ath9k_unregister_led(struct ath_led *led)
		{
		if (led->registered) {
		led_classdev_unregister(&led->led_cdev);
		led->registered = 0;
		}
		}

		void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
		{
		priv->op_flags \|= OP_LED_DEINIT;
		ath9k_unregister_led(&priv->assoc_led);
		priv->op_flags &= ~OP_LED_ASSOCIATED;
		ath9k_unregister_led(&priv->tx_led);
		ath9k_unregister_led(&priv->rx_led);
		ath9k_unregister_led(&priv->radio_led);
		}

		void ath9k_init_leds(struct ath9k_htc_priv *priv)
		{
		char *trigger;
		int ret;

		if (AR_SREV_9287(priv->ah))
		priv->ah->led_pin = ATH_LED_PIN_9287;
		else if (AR_SREV_9271(priv->ah))
		priv->ah->led_pin = ATH_LED_PIN_9271;
		else if (AR_DEVID_7010(priv->ah))
		priv->ah->led_pin = ATH_LED_PIN_7010;
		else
		priv->ah->led_pin = ATH_LED_PIN_DEF;

		/* Configure gpio 1 for output */
		ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
		AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
		/* LED off, active low */
		ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);

		INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work);

		trigger = ieee80211_get_radio_led_name(priv->hw);
		snprintf(priv->radio_led.name, sizeof(priv->radio_led.name),
		"ath9k-%s::radio", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->radio_led, trigger);
		priv->radio_led.led_type = ATH_LED_RADIO;
		if (ret)
		goto fail;

		trigger = ieee80211_get_assoc_led_name(priv->hw);
		snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name),
		"ath9k-%s::assoc", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->assoc_led, trigger);
		priv->assoc_led.led_type = ATH_LED_ASSOC;
		if (ret)
		goto fail;

		trigger = ieee80211_get_tx_led_name(priv->hw);
		snprintf(priv->tx_led.name, sizeof(priv->tx_led.name),
		"ath9k-%s::tx", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->tx_led, trigger);
		priv->tx_led.led_type = ATH_LED_TX;
		if (ret)
		goto fail;

		trigger = ieee80211_get_rx_led_name(priv->hw);
		snprintf(priv->rx_led.name, sizeof(priv->rx_led.name),
		"ath9k-%s::rx", wiphy_name(priv->hw->wiphy));
		ret = ath9k_register_led(priv, &priv->rx_led, trigger);
		priv->rx_led.led_type = ATH_LED_RX;
		if (ret)
		goto fail;

		priv->op_flags &= ~OP_LED_DEINIT;

		return;

		fail:
		cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
		ath9k_deinit_leds(priv);
		}

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

		static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv)
		{
		return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) ==
		priv->ah->rfkill_polarity;
		}

		static void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw)
		{
		struct ath9k_htc_priv *priv = hw->priv;
		bool blocked = !!ath_is_rfkill_set(priv);

		wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
		}

		void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv)
		{
		if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
		wiphy_rfkill_start_polling(priv->hw->wiphy);
		}

		static void ath9k_htc_radio_enable(struct ieee80211_hw *hw)
		{
		struct ath9k_htc_priv *priv = hw->priv;
		struct ath_hw *ah = priv->ah;
		struct ath_common *common = ath9k_hw_common(ah);
		int ret;
		u8 cmd_rsp;

		if (!ah->curchan)
		ah->curchan = ath9k_cmn_get_curchannel(hw, ah);

		/* Reset the HW */
		ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
		if (ret) {
		ath_err(common,
		"Unable to reset hardware; reset status %d (freq %u MHz)\n",
		ret, ah->curchan->channel);
		}

		ath_update_txpow(priv);

		/* Start RX */
		WMI_CMD(WMI_START_RECV_CMDID);
		ath9k_host_rx_init(priv);

		/* Start TX */
		htc_start(priv->htc);
		spin_lock_bh(&priv->tx_lock);
		priv->tx_queues_stop = false;
		spin_unlock_bh(&priv->tx_lock);
		ieee80211_wake_queues(hw);

		WMI_CMD(WMI_ENABLE_INTR_CMDID);

		/* Enable LED */
		ath9k_hw_cfg_output(ah, ah->led_pin,
		AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
		ath9k_hw_set_gpio(ah, ah->led_pin, 0);
		}

		static void ath9k_htc_radio_disable(struct ieee80211_hw *hw)
		{
		struct ath9k_htc_priv *priv = hw->priv;
		struct ath_hw *ah = priv->ah;
		struct ath_common *common = ath9k_hw_common(ah);
		int ret;
		u8 cmd_rsp;

		ath9k_htc_ps_wakeup(priv);

		/* Disable LED */
		ath9k_hw_set_gpio(ah, ah->led_pin, 1);
		ath9k_hw_cfg_gpio_input(ah, ah->led_pin);

		WMI_CMD(WMI_DISABLE_INTR_CMDID);

		/* Stop TX */
		ieee80211_stop_queues(hw);
		htc_stop(priv->htc);
		WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
		skb_queue_purge(&priv->tx_queue);

		/* Stop RX */
		WMI_CMD(WMI_STOP_RECV_CMDID);

		/*
		* The MIB counters have to be disabled here,
		* since the target doesn't do it.
		*/
		ath9k_hw_disable_mib_counters(ah);

		if (!ah->curchan)
		ah->curchan = ath9k_cmn_get_curchannel(hw, ah);

		/* Reset the HW */
		ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
		if (ret) {
		ath_err(common,
		"Unable to reset hardware; reset status %d (freq %u MHz)\n",
		ret, ah->curchan->channel);
		}

		/* Disable the PHY */
		ath9k_hw_phy_disable(ah);

		ath9k_htc_ps_restore(priv);
		ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
		}

		/**********************/
		/* mac80211 Callbacks */
		/**********************/