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/*
* Copyright (c) 2009 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"
void ath9k_hw_btcoex_init(struct ath_hw *ah)
{
/* connect bt_active to baseband */
REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL,
(AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF |
AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_DEF));
REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB);
/* Set input mux for bt_active to gpio pin */
REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1,
AR_GPIO_INPUT_MUX1_BT_ACTIVE,
ah->btactive_gpio);
/* Configure the desired gpio port for input */
ath9k_hw_cfg_gpio_input(ah, ah->btactive_gpio);
}
void ath9k_hw_btcoex_enable(struct ath_hw *ah)
{
/* Configure the desired GPIO port for TX_FRAME output */
ath9k_hw_cfg_output(ah, ah->wlanactive_gpio,
AR_GPIO_OUTPUT_MUX_AS_TX_FRAME);
ah->ah_sc->sc_flags |= SC_OP_BTCOEX_ENABLED;
}
void ath9k_hw_btcoex_disable(struct ath_hw *ah)
{
ath9k_hw_set_gpio(ah, ah->wlanactive_gpio, 0);
ath9k_hw_cfg_output(ah, ah->wlanactive_gpio,
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
ah->ah_sc->sc_flags &= ~SC_OP_BTCOEX_ENABLED;
}
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