| /* |
| * 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) |
| { |
| struct ath_btcoex_info *btcoex_info = &ah->ah_sc->btcoex_info; |
| |
| /* 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, |
| btcoex_info->btactive_gpio); |
| |
| /* Configure the desired gpio port for input */ |
| ath9k_hw_cfg_gpio_input(ah, btcoex_info->btactive_gpio); |
| } |
| |
| void ath9k_hw_btcoex_enable(struct ath_hw *ah) |
| { |
| struct ath_btcoex_info *btcoex_info = &ah->ah_sc->btcoex_info; |
| |
| /* Configure the desired GPIO port for TX_FRAME output */ |
| ath9k_hw_cfg_output(ah, btcoex_info->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) |
| { |
| struct ath_btcoex_info *btcoex_info = &ah->ah_sc->btcoex_info; |
| |
| ath9k_hw_set_gpio(ah, btcoex_info->wlanactive_gpio, 0); |
| |
| ath9k_hw_cfg_output(ah, btcoex_info->wlanactive_gpio, |
| AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| |
| ah->ah_sc->sc_flags &= ~SC_OP_BTCOEX_ENABLED; |
| } |