diff options
| author | Felix Fietkau <nbd@nbd.name> | 2016-07-11 12:02:48 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2016-07-19 19:59:17 +0200 |
| commit | 171f6402e4aa5cd3b8407f82501f7ea21fa54ccc (patch) | |
| tree | 83900bcab4c962d35641269440087ec259241d76 /drivers/net/wireless/ath/ath9k | |
| parent | ath9k_hw: get rid of some duplicate code in calibration init (diff) | |
| download | linux-171f6402e4aa5cd3b8407f82501f7ea21fa54ccc.tar.xz linux-171f6402e4aa5cd3b8407f82501f7ea21fa54ccc.zip | |
ath9k_hw: implement temperature compensation support for AR9003+
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_calib.c | 25 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.h | 1 |
2 files changed, 23 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 7e27a06e5df1..b6f064a8d264 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -33,6 +33,7 @@ struct coeff { enum ar9003_cal_types { IQ_MISMATCH_CAL = BIT(0), + TEMP_COMP_CAL = BIT(1), }; static void ar9003_hw_setup_calibration(struct ath_hw *ah, @@ -58,6 +59,12 @@ static void ar9003_hw_setup_calibration(struct ath_hw *ah, /* Kick-off cal */ REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL); break; + case TEMP_COMP_CAL: + ath_dbg(common, CALIBRATE, + "starting Temperature Compensation Calibration\n"); + REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_LOCAL); + REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_START); + break; default: ath_err(common, "Invalid calibration type\n"); break; @@ -86,7 +93,8 @@ static bool ar9003_hw_per_calibration(struct ath_hw *ah, /* * Accumulate cal measures for active chains */ - cur_caldata->calCollect(ah); + if (cur_caldata->calCollect) + cur_caldata->calCollect(ah); ah->cal_samples++; if (ah->cal_samples >= cur_caldata->calNumSamples) { @@ -99,7 +107,8 @@ static bool ar9003_hw_per_calibration(struct ath_hw *ah, /* * Process accumulated data */ - cur_caldata->calPostProc(ah, numChains); + if (cur_caldata->calPostProc) + cur_caldata->calPostProc(ah, numChains); /* Calibration has finished. */ caldata->CalValid |= cur_caldata->calType; @@ -314,9 +323,16 @@ static const struct ath9k_percal_data iq_cal_single_sample = { ar9003_hw_iqcalibrate }; +static const struct ath9k_percal_data temp_cal_single_sample = { + TEMP_COMP_CAL, + MIN_CAL_SAMPLES, + PER_MAX_LOG_COUNT, +}; + static void ar9003_hw_init_cal_settings(struct ath_hw *ah) { ah->iq_caldata.calData = &iq_cal_single_sample; + ah->temp_caldata.calData = &temp_cal_single_sample; if (AR_SREV_9300_20_OR_LATER(ah)) { ah->enabled_cals |= TX_IQ_CAL; @@ -324,7 +340,7 @@ static void ar9003_hw_init_cal_settings(struct ath_hw *ah) ah->enabled_cals |= TX_IQ_ON_AGC_CAL; } - ah->supp_cals = IQ_MISMATCH_CAL; + ah->supp_cals = IQ_MISMATCH_CAL | TEMP_COMP_CAL; } #define OFF_UPPER_LT 24 @@ -1383,6 +1399,9 @@ static void ar9003_hw_init_cal_common(struct ath_hw *ah) INIT_CAL(&ah->iq_caldata); INSERT_CAL(ah, &ah->iq_caldata); + INIT_CAL(&ah->temp_caldata); + INSERT_CAL(ah, &ah->temp_caldata); + /* Initialize current pointer to first element in list */ ah->cal_list_curr = ah->cal_list; diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 9cbca1229bac..2a5d3ad1169c 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -830,6 +830,7 @@ struct ath_hw { /* Calibration */ u32 supp_cals; struct ath9k_cal_list iq_caldata; + struct ath9k_cal_list temp_caldata; struct ath9k_cal_list adcgain_caldata; struct ath9k_cal_list adcdc_caldata; struct ath9k_cal_list *cal_list; |