98 lines
2.8 KiB
Diff
98 lines
2.8 KiB
Diff
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From: Felix Fietkau <nbd@nbd.name>
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Date: Mon, 11 Jul 2016 11:35:55 +0200
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Subject: [PATCH] ath9k_hw: implement temperature compensation support for
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AR9003+
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
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+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
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@@ -33,6 +33,7 @@ struct coeff {
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enum ar9003_cal_types {
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IQ_MISMATCH_CAL = BIT(0),
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+ TEMP_COMP_CAL = BIT(1),
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};
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static void ar9003_hw_setup_calibration(struct ath_hw *ah,
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@@ -58,6 +59,12 @@ static void ar9003_hw_setup_calibration(
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/* Kick-off cal */
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REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL);
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break;
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+ case TEMP_COMP_CAL:
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+ ath_dbg(common, CALIBRATE,
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+ "starting Temperature Compensation Calibration\n");
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+ REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_LOCAL);
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+ REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_START);
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+ break;
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default:
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ath_err(common, "Invalid calibration type\n");
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break;
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@@ -86,7 +93,8 @@ static bool ar9003_hw_per_calibration(st
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/*
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* Accumulate cal measures for active chains
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*/
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- cur_caldata->calCollect(ah);
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+ if (cur_caldata->calCollect)
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+ cur_caldata->calCollect(ah);
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ah->cal_samples++;
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if (ah->cal_samples >= cur_caldata->calNumSamples) {
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@@ -99,7 +107,8 @@ static bool ar9003_hw_per_calibration(st
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/*
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* Process accumulated data
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*/
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- cur_caldata->calPostProc(ah, numChains);
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+ if (cur_caldata->calPostProc)
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+ cur_caldata->calPostProc(ah, numChains);
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/* Calibration has finished. */
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caldata->CalValid |= cur_caldata->calType;
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@@ -314,9 +323,16 @@ static const struct ath9k_percal_data iq
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ar9003_hw_iqcalibrate
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};
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+static const struct ath9k_percal_data temp_cal_single_sample = {
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+ TEMP_COMP_CAL,
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+ MIN_CAL_SAMPLES,
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+ PER_MAX_LOG_COUNT,
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+};
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+
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static void ar9003_hw_init_cal_settings(struct ath_hw *ah)
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{
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ah->iq_caldata.calData = &iq_cal_single_sample;
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+ ah->temp_caldata.calData = &temp_cal_single_sample;
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if (AR_SREV_9300_20_OR_LATER(ah)) {
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ah->enabled_cals |= TX_IQ_CAL;
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@@ -324,7 +340,7 @@ static void ar9003_hw_init_cal_settings(
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ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
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}
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- ah->supp_cals = IQ_MISMATCH_CAL;
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+ ah->supp_cals = IQ_MISMATCH_CAL | TEMP_COMP_CAL;
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}
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#define OFF_UPPER_LT 24
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@@ -1383,6 +1399,9 @@ static void ar9003_hw_init_cal_common(st
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INIT_CAL(&ah->iq_caldata);
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INSERT_CAL(ah, &ah->iq_caldata);
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+ INIT_CAL(&ah->temp_caldata);
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+ INSERT_CAL(ah, &ah->temp_caldata);
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+
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/* Initialize current pointer to first element in list */
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ah->cal_list_curr = ah->cal_list;
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--- a/drivers/net/wireless/ath/ath9k/hw.h
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+++ b/drivers/net/wireless/ath/ath9k/hw.h
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@@ -830,6 +830,7 @@ struct ath_hw {
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/* Calibration */
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u32 supp_cals;
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struct ath9k_cal_list iq_caldata;
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+ struct ath9k_cal_list temp_caldata;
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struct ath9k_cal_list adcgain_caldata;
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struct ath9k_cal_list adcdc_caldata;
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struct ath9k_cal_list *cal_list;
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