155 lines
5.0 KiB
C
155 lines
5.0 KiB
C
/*-
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
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* Copyright (c) 2002-2005 Atheros Communications, Inc.
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* Copyright (c) 2008-2010, Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#include "opt_ah.h"
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#include "ah.h"
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#include "ah_internal.h"
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#include "ah_devid.h"
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#ifdef AH_DEBUG
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#include "ah_desc.h" /* NB: for HAL_PHYERR* */
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#endif
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#include "ar5416/ar5416.h"
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#include "ar5416/ar5416reg.h"
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#include "ar5416/ar5416phy.h"
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#include "ar5416/ar5416desc.h" /* AR5416_CONTTXMODE */
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#include "ar9002/ar9285phy.h"
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#include "ar9002/ar9285.h"
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/*
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* This is specific to Kite.
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*
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* Kiwi and others don't have antenna diversity like this.
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*/
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void
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ar9285BTCoexAntennaDiversity(struct ath_hal *ah)
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{
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struct ath_hal_5416 *ahp = AH5416(ah);
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u_int32_t regVal;
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u_int8_t ant_div_control1, ant_div_control2;
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HALDEBUG(ah, HAL_DEBUG_BT_COEX,
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"%s: btCoexFlag: ALLOW=%d, ENABLE=%d\n",
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__func__,
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!! (ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_ANT_DIV_ALLOW),
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!! (ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_ANT_DIV_ENABLE));
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if ((ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_ANT_DIV_ALLOW) ||
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(AH5212(ah)->ah_diversity != HAL_ANT_VARIABLE)) {
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if ((ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_ANT_DIV_ENABLE) &&
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(AH5212(ah)->ah_antControl == HAL_ANT_VARIABLE)) {
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/* Enable antenna diversity */
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ant_div_control1 = HAL_BT_COEX_ANTDIV_CONTROL1_ENABLE;
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ant_div_control2 = HAL_BT_COEX_ANTDIV_CONTROL2_ENABLE;
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/* Don't disable BT ant to allow BB to control SWCOM */
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ahp->ah_btCoexMode2 &= (~(AR_BT_DISABLE_BT_ANT));
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OS_REG_WRITE(ah, AR_BT_COEX_MODE2, ahp->ah_btCoexMode2);
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/* Program the correct SWCOM table */
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OS_REG_WRITE(ah, AR_PHY_SWITCH_COM,
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HAL_BT_COEX_ANT_DIV_SWITCH_COM);
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OS_REG_RMW(ah, AR_PHY_SWITCH_CHAIN_0, 0, 0xf0000000);
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} else if (AH5212(ah)->ah_antControl == HAL_ANT_FIXED_B) {
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/* Disable antenna diversity. Use antenna B(LNA2) only. */
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ant_div_control1 = HAL_BT_COEX_ANTDIV_CONTROL1_FIXED_B;
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ant_div_control2 = HAL_BT_COEX_ANTDIV_CONTROL2_FIXED_B;
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/* Disable BT ant to allow concurrent BT and WLAN receive */
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ahp->ah_btCoexMode2 |= AR_BT_DISABLE_BT_ANT;
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OS_REG_WRITE(ah, AR_BT_COEX_MODE2, ahp->ah_btCoexMode2);
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/*
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* Program SWCOM table to make sure RF switch always parks
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* at WLAN side
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*/
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OS_REG_WRITE(ah, AR_PHY_SWITCH_COM,
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HAL_BT_COEX_ANT_DIV_SWITCH_COM);
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OS_REG_RMW(ah, AR_PHY_SWITCH_CHAIN_0, 0x60000000, 0xf0000000);
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} else {
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/* Disable antenna diversity. Use antenna A(LNA1) only */
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ant_div_control1 = HAL_BT_COEX_ANTDIV_CONTROL1_FIXED_A;
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ant_div_control2 = HAL_BT_COEX_ANTDIV_CONTROL2_FIXED_A;
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/* Disable BT ant to allow concurrent BT and WLAN receive */
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ahp->ah_btCoexMode2 |= AR_BT_DISABLE_BT_ANT;
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OS_REG_WRITE(ah, AR_BT_COEX_MODE2, ahp->ah_btCoexMode2);
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/*
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* Program SWCOM table to make sure RF switch always
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* parks at BT side
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*/
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OS_REG_WRITE(ah, AR_PHY_SWITCH_COM, 0);
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OS_REG_RMW(ah, AR_PHY_SWITCH_CHAIN_0, 0, 0xf0000000);
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}
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regVal = OS_REG_READ(ah, AR_PHY_MULTICHAIN_GAIN_CTL);
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regVal &= (~(AR_PHY_9285_ANT_DIV_CTL_ALL));
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/*
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* Clear ant_fast_div_bias [14:9] since for Janus the main LNA is
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* always LNA1.
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*/
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regVal &= (~(AR_PHY_9285_FAST_DIV_BIAS));
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regVal |= SM(ant_div_control1, AR_PHY_9285_ANT_DIV_CTL);
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regVal |= SM(ant_div_control2, AR_PHY_9285_ANT_DIV_ALT_LNACONF);
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regVal |= SM((ant_div_control2 >> 2), AR_PHY_9285_ANT_DIV_MAIN_LNACONF);
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regVal |= SM((ant_div_control1 >> 1), AR_PHY_9285_ANT_DIV_ALT_GAINTB);
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regVal |= SM((ant_div_control1 >> 2), AR_PHY_9285_ANT_DIV_MAIN_GAINTB);
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OS_REG_WRITE(ah, AR_PHY_MULTICHAIN_GAIN_CTL, regVal);
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regVal = OS_REG_READ(ah, AR_PHY_CCK_DETECT);
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regVal &= (~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
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regVal |= SM((ant_div_control1 >> 3),
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AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
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OS_REG_WRITE(ah, AR_PHY_CCK_DETECT, regVal);
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}
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}
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void
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ar9285BTCoexSetParameter(struct ath_hal *ah, u_int32_t type, u_int32_t value)
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{
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struct ath_hal_5416 *ahp = AH5416(ah);
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switch (type) {
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case HAL_BT_COEX_ANTENNA_DIVERSITY:
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if (AR_SREV_KITE(ah)) {
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ahp->ah_btCoexFlag |= HAL_BT_COEX_FLAG_ANT_DIV_ALLOW;
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if (value)
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ahp->ah_btCoexFlag |=
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HAL_BT_COEX_FLAG_ANT_DIV_ENABLE;
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else
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ahp->ah_btCoexFlag &=
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~HAL_BT_COEX_FLAG_ANT_DIV_ENABLE;
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ar9285BTCoexAntennaDiversity(ah);
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}
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break;
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default:
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ar5416BTCoexSetParameter(ah, type, value);
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break;
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}
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}
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