From 17d50d1df48631ae868958032edada7aa920636b Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Wed, 26 Aug 2009 21:08:44 +0530 Subject: ath9k: Move btcoex stuff from hw.[ch] to new btcoex.[ch] Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/btcoex.c | 55 +++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 drivers/net/wireless/ath/ath9k/btcoex.c (limited to 'drivers/net/wireless/ath/ath9k/btcoex.c') diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c new file mode 100644 index 00000000000..abaf92d8074 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/btcoex.c @@ -0,0 +1,55 @@ +/* + * 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; +} -- cgit v1.2.3