From c5395b67437b47c4a4c0686d3db99be9327ef67e Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Wed, 19 May 2010 16:45:50 -0400 Subject: [PATCH] ath9k_hw: Enable TX IQ calibration on AR9003 To enable it we now disable and re-enable the PHY chips after TX IQ calibration. Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 10 ++++++---- drivers/net/wireless/ath/ath9k/hw.c | 6 ------ drivers/net/wireless/ath/ath9k/hw.h | 1 - 3 files changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 56a9e5fa6d66..5a0650399136 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -739,6 +739,12 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, */ ar9003_hw_set_chain_masks(ah, 0x7, 0x7); + /* Do Tx IQ Calibration */ + ar9003_hw_tx_iq_cal(ah); + REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); + udelay(5); + REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); + /* Calibrate the AGC */ REG_WRITE(ah, AR_PHY_AGC_CONTROL, REG_READ(ah, AR_PHY_AGC_CONTROL) | @@ -753,10 +759,6 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, return false; } - /* Do Tx IQ Calibration */ - if (ah->config.tx_iq_calibration) - ar9003_hw_tx_iq_cal(ah); - /* Revert chainmasks to their original values before NF cal */ ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 3b55c7f6bb79..d902878faeed 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -391,12 +391,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah) ah->config.rx_intr_mitigation = true; - /* - * Tx IQ Calibration (ah->config.tx_iq_calibration) is only - * used by AR9003, but it is showing reliability issues. - * It will take a while to fix so this is currently disabled. - */ - /* * We need this for PCI devices only (Cardbus, PCI, miniPCI) * _and_ if on non-uniprocessor systems (Multiprocessor/HT). diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index ffc9249b02c5..116d1c80aa21 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -263,7 +263,6 @@ struct ath9k_ops_config { #define AR_BASE_FREQ_5GHZ 4900 #define AR_SPUR_FEEQ_BOUND_HT40 19 #define AR_SPUR_FEEQ_BOUND_HT20 10 - bool tx_iq_calibration; /* Only available for >= AR9003 */ int spurmode; u16 spurchans[AR_EEPROM_MODAL_SPURS][2]; u8 max_txtrig_level; -- 2.30.2