1331722Seadler/* 2220587Sadrian * Copyright (c) 2008-2010 Atheros Communications Inc. 3220587Sadrian * Copyright (c) 2010-2011 Adrian Chadd, Xenion Pty Ltd. 4220587Sadrian * 5220587Sadrian * Redistribution and use in source and binary forms, with or without 6220587Sadrian * modification, are permitted provided that the following conditions 7220587Sadrian * are met: 8220587Sadrian * 1. Redistributions of source code must retain the above copyright 9220587Sadrian * notice, this list of conditions and the following disclaimer. 10220587Sadrian * 2. Redistributions in binary form must reproduce the above copyright 11220587Sadrian * notice, this list of conditions and the following disclaimer in the 12220587Sadrian * documentation and/or other materials provided with the distribution. 13220587Sadrian * 14220587Sadrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15220587Sadrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16220587Sadrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17220587Sadrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18220587Sadrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19220587Sadrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20220587Sadrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21220587Sadrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22220587Sadrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23220587Sadrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24220587Sadrian * SUCH DAMAGE. 25220587Sadrian * 26220587Sadrian * $FreeBSD$ 27220587Sadrian */ 28220587Sadrian#include "opt_ah.h" 29220587Sadrian 30220587Sadrian#include "ah.h" 31220587Sadrian#include "ah_internal.h" 32220587Sadrian#include "ah_devid.h" 33220587Sadrian#include "ah_eeprom_v4k.h" 34220587Sadrian 35220587Sadrian#include "ar9002/ar9280.h" 36220587Sadrian#include "ar9002/ar9285.h" 37220587Sadrian#include "ar5416/ar5416reg.h" 38220587Sadrian#include "ar5416/ar5416phy.h" 39220587Sadrian#include "ar9002/ar9285phy.h" 40220587Sadrian#include "ar9002/ar9285_phy.h" 41220587Sadrian 42220587Sadrianvoid 43251643Sadrianar9285_antdiv_comb_conf_get(struct ath_hal *ah, HAL_ANT_COMB_CONFIG *antconf) 44220587Sadrian{ 45220587Sadrian uint32_t regval; 46220587Sadrian 47220587Sadrian regval = OS_REG_READ(ah, AR_PHY_MULTICHAIN_GAIN_CTL); 48220587Sadrian antconf->main_lna_conf = (regval & AR_PHY_9285_ANT_DIV_MAIN_LNACONF) >> 49220587Sadrian AR_PHY_9285_ANT_DIV_MAIN_LNACONF_S; 50220587Sadrian antconf->alt_lna_conf = (regval & AR_PHY_9285_ANT_DIV_ALT_LNACONF) >> 51220587Sadrian AR_PHY_9285_ANT_DIV_ALT_LNACONF_S; 52220587Sadrian antconf->fast_div_bias = (regval & AR_PHY_9285_FAST_DIV_BIAS) >> 53220587Sadrian AR_PHY_9285_FAST_DIV_BIAS_S; 54251656Sadrian antconf->antdiv_configgroup = DEFAULT_ANTDIV_CONFIG_GROUP; 55220587Sadrian} 56220587Sadrian 57220587Sadrianvoid 58251643Sadrianar9285_antdiv_comb_conf_set(struct ath_hal *ah, HAL_ANT_COMB_CONFIG *antconf) 59220587Sadrian{ 60220587Sadrian uint32_t regval; 61220587Sadrian 62220587Sadrian regval = OS_REG_READ(ah, AR_PHY_MULTICHAIN_GAIN_CTL); 63220587Sadrian regval &= ~(AR_PHY_9285_ANT_DIV_MAIN_LNACONF | 64220587Sadrian AR_PHY_9285_ANT_DIV_ALT_LNACONF | 65220587Sadrian AR_PHY_9285_FAST_DIV_BIAS); 66220587Sadrian regval |= ((antconf->main_lna_conf << AR_PHY_9285_ANT_DIV_MAIN_LNACONF_S) 67220587Sadrian & AR_PHY_9285_ANT_DIV_MAIN_LNACONF); 68220587Sadrian regval |= ((antconf->alt_lna_conf << AR_PHY_9285_ANT_DIV_ALT_LNACONF_S) 69220587Sadrian & AR_PHY_9285_ANT_DIV_ALT_LNACONF); 70220587Sadrian regval |= ((antconf->fast_div_bias << AR_PHY_9285_FAST_DIV_BIAS_S) 71220587Sadrian & AR_PHY_9285_FAST_DIV_BIAS); 72220587Sadrian 73220587Sadrian OS_REG_WRITE(ah, AR_PHY_MULTICHAIN_GAIN_CTL, regval); 74220587Sadrian} 75220587Sadrian 76220587Sadrian/* 77221702Sadrian * Check whether combined + fast antenna diversity should be enabled. 78221702Sadrian * 79221702Sadrian * This enables software-driven RX antenna diversity based on RX 80221702Sadrian * RSSI + antenna config packet sampling. 81220587Sadrian */ 82221702SadrianHAL_BOOL 83220587Sadrianar9285_check_div_comb(struct ath_hal *ah) 84220587Sadrian{ 85220587Sadrian uint8_t ant_div_ctl1; 86220587Sadrian HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; 87220587Sadrian const MODAL_EEP4K_HEADER *pModal = &ee->ee_base.modalHeader; 88220587Sadrian 89251442Sadrian#if 0 90221702Sadrian /* For now, simply disable this until it's better debugged. -adrian */ 91221702Sadrian return AH_FALSE; 92251442Sadrian#endif 93221702Sadrian 94220587Sadrian if (! AR_SREV_KITE(ah)) 95221702Sadrian return AH_FALSE; 96220587Sadrian 97220587Sadrian if (pModal->version < 3) 98221702Sadrian return AH_FALSE; 99220587Sadrian 100220587Sadrian ant_div_ctl1 = pModal->antdiv_ctl1; 101220587Sadrian if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) 102221702Sadrian return AH_TRUE; 103220587Sadrian 104221702Sadrian return AH_FALSE; 105220587Sadrian} 106