1 /* 2 * Copyright (c) 2008-2010 Atheros Communications Inc. 3 * Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 #include "opt_ah.h" 29 #include "ah.h" 30 #include "ah_internal.h" 31 32 #include "ah_eeprom_v4k.h" 33 34 #include "ar9002/ar9285.h" 35 #include "ar5416/ar5416reg.h" 36 #include "ar5416/ar5416phy.h" 37 #include "ar9002/ar9002phy.h" 38 //#include "ar9002/ar9287phy.h" 39 40 #include "ar9002/ar9287_cal.h" 41 42 43 void 44 ar9287PACal(struct ath_hal *ah, HAL_BOOL is_reset) 45 { 46 /* XXX not required */ 47 } 48 49 /* 50 * This is like Merlin but without ADC disable 51 */ 52 HAL_BOOL 53 ar9287InitCalHardware(struct ath_hal *ah, const struct ieee80211_channel *chan) 54 { 55 OS_REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL); 56 57 /* Calibrate the AGC */ 58 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 59 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_CAL); 60 61 /* Poll for offset calibration complete */ 62 if (!ath_hal_wait(ah, AR_PHY_AGC_CONTROL, 63 AR_PHY_AGC_CONTROL_CAL, 0)) { 64 HALDEBUG(ah, HAL_DEBUG_RESET, 65 "%s: offset calibration failed to complete in 1ms; " 66 "noisy environment?\n", __func__); 67 return AH_FALSE; 68 } 69 70 OS_REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL); 71 72 return AH_TRUE; 73 } 74