From 91ae4d02913808fc4056168766185d1a3bd63f65 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Thu, 20 Oct 2011 14:29:38 +0530 Subject: ath9k_hw: Fix radio retention for AR9462 IQ calibration during fast channel change sometimes failed with RTT. And also restoring invalid radio retention readings during init cal could cause failure to set the channel properly. This patch counts the valid rtt history readings and clears rtt mask. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/ar9003_calib.c') diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 16851cb..a4cd161 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -908,12 +908,15 @@ static bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan) int i; bool restore; - if (!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT) || !ah->caldata) + if (!ah->caldata) return false; hist = &ah->caldata->rtt_hist; + if (!hist->num_readings) + return false; + ar9003_hw_rtt_enable(ah); - ar9003_hw_rtt_set_mask(ah, 0x10); + ar9003_hw_rtt_set_mask(ah, 0x00); for (i = 0; i < AR9300_MAX_CHAINS; i++) { if (!(ah->rxchainmask & (1 << i))) continue; @@ -1070,6 +1073,7 @@ skip_tx_iqcal: if (is_reusable && (hist->num_readings < RTT_HIST_MAX)) { u32 *table; + hist->num_readings++; for (i = 0; i < AR9300_MAX_CHAINS; i++) { if (!(ah->rxchainmask & (1 << i))) continue; -- cgit v1.1 From 93348928f2c980718434b1bc42f9d7638d665db4 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Tue, 25 Oct 2011 16:47:36 +0530 Subject: ath9k_hw: Fix noise floor calibration timeout on fast channel change During the fast channel change noise floor values are being loaded twice at init_cal and after channel_change. The commit "ath9k_hw: Improve fast channel change for AR9003 chips" overlooked it that caused failure to load nf while doing bgscan. This patch performs noise floor calibration after the fast and full reset. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/ar9003_calib.c') diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index a4cd161..12a730d 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -1085,9 +1085,6 @@ skip_tx_iqcal: ar9003_hw_rtt_disable(ah); } - ath9k_hw_loadnf(ah, chan); - ath9k_hw_start_nfcal(ah, true); - /* Initialize list pointers */ ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; ah->supp_cals = IQ_MISMATCH_CAL; -- cgit v1.1