diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/calib.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/calib.c | 1024 |
1 files changed, 10 insertions, 1014 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index 238a5744d8e9..07b8fa6fb62f 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -15,6 +15,9 @@ */ #include "hw.h" +#include "hw-ops.h" + +/* Common calibration code */ /* We can tune this as we go by monitoring really low values */ #define ATH9K_NF_TOO_LOW -60 @@ -83,93 +86,11 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath9k_nfcal_hist *h, ath9k_hw_get_nf_hist_mid(h[i].nfCalBuffer); } } - return; } -static void ath9k_hw_do_getnf(struct ath_hw *ah, - int16_t nfarray[NUM_NF_READINGS]) -{ - struct ath_common *common = ath9k_hw_common(ah); - int16_t nf; - - if (AR_SREV_9280_10_OR_LATER(ah)) - nf = MS(REG_READ(ah, AR_PHY_CCA), AR9280_PHY_MINCCA_PWR); - else - nf = MS(REG_READ(ah, AR_PHY_CCA), AR_PHY_MINCCA_PWR); - - if (nf & 0x100) - nf = 0 - ((nf ^ 0x1ff) + 1); - ath_print(common, ATH_DBG_CALIBRATE, - "NF calibrated [ctl] [chain 0] is %d\n", nf); - nfarray[0] = nf; - - if (!AR_SREV_9285(ah)) { - if (AR_SREV_9280_10_OR_LATER(ah)) - nf = MS(REG_READ(ah, AR_PHY_CH1_CCA), - AR9280_PHY_CH1_MINCCA_PWR); - else - nf = MS(REG_READ(ah, AR_PHY_CH1_CCA), - AR_PHY_CH1_MINCCA_PWR); - - if (nf & 0x100) - nf = 0 - ((nf ^ 0x1ff) + 1); - ath_print(common, ATH_DBG_CALIBRATE, - "NF calibrated [ctl] [chain 1] is %d\n", nf); - nfarray[1] = nf; - - if (!AR_SREV_9280(ah) && !AR_SREV_9287(ah)) { - nf = MS(REG_READ(ah, AR_PHY_CH2_CCA), - AR_PHY_CH2_MINCCA_PWR); - if (nf & 0x100) - nf = 0 - ((nf ^ 0x1ff) + 1); - ath_print(common, ATH_DBG_CALIBRATE, - "NF calibrated [ctl] [chain 2] is %d\n", nf); - nfarray[2] = nf; - } - } - - if (AR_SREV_9280_10_OR_LATER(ah)) - nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), - AR9280_PHY_EXT_MINCCA_PWR); - else - nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), - AR_PHY_EXT_MINCCA_PWR); - - if (nf & 0x100) - nf = 0 - ((nf ^ 0x1ff) + 1); - ath_print(common, ATH_DBG_CALIBRATE, - "NF calibrated [ext] [chain 0] is %d\n", nf); - nfarray[3] = nf; - - if (!AR_SREV_9285(ah)) { - if (AR_SREV_9280_10_OR_LATER(ah)) - nf = MS(REG_READ(ah, AR_PHY_CH1_EXT_CCA), - AR9280_PHY_CH1_EXT_MINCCA_PWR); - else - nf = MS(REG_READ(ah, AR_PHY_CH1_EXT_CCA), - AR_PHY_CH1_EXT_MINCCA_PWR); - - if (nf & 0x100) - nf = 0 - ((nf ^ 0x1ff) + 1); - ath_print(common, ATH_DBG_CALIBRATE, - "NF calibrated [ext] [chain 1] is %d\n", nf); - nfarray[4] = nf; - - if (!AR_SREV_9280(ah) && !AR_SREV_9287(ah)) { - nf = MS(REG_READ(ah, AR_PHY_CH2_EXT_CCA), - AR_PHY_CH2_EXT_MINCCA_PWR); - if (nf & 0x100) - nf = 0 - ((nf ^ 0x1ff) + 1); - ath_print(common, ATH_DBG_CALIBRATE, - "NF calibrated [ext] [chain 2] is %d\n", nf); - nfarray[5] = nf; - } - } -} - -static bool getNoiseFloorThresh(struct ath_hw *ah, - enum ieee80211_band band, - int16_t *nft) +static bool ath9k_hw_get_nf_thresh(struct ath_hw *ah, + enum ieee80211_band band, + int16_t *nft) { switch (band) { case IEEE80211_BAND_5GHZ: @@ -186,44 +107,8 @@ static bool getNoiseFloorThresh(struct ath_hw *ah, return true; } -static void ath9k_hw_setup_calibration(struct ath_hw *ah, - struct ath9k_cal_list *currCal) -{ - struct ath_common *common = ath9k_hw_common(ah); - - REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(0), - AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX, - currCal->calData->calCountMax); - - switch (currCal->calData->calType) { - case IQ_MISMATCH_CAL: - REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_IQ); - ath_print(common, ATH_DBG_CALIBRATE, - "starting IQ Mismatch Calibration\n"); - break; - case ADC_GAIN_CAL: - REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_GAIN); - ath_print(common, ATH_DBG_CALIBRATE, - "starting ADC Gain Calibration\n"); - break; - case ADC_DC_CAL: - REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_DC_PER); - ath_print(common, ATH_DBG_CALIBRATE, - "starting ADC DC Calibration\n"); - break; - case ADC_DC_INIT_CAL: - REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_DC_INIT); - ath_print(common, ATH_DBG_CALIBRATE, - "starting Init ADC DC Calibration\n"); - break; - } - - REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0), - AR_PHY_TIMING_CTRL4_DO_CAL); -} - -static void ath9k_hw_reset_calibration(struct ath_hw *ah, - struct ath9k_cal_list *currCal) +void ath9k_hw_reset_calibration(struct ath_hw *ah, + struct ath9k_cal_list *currCal) { int i; @@ -241,324 +126,6 @@ static void ath9k_hw_reset_calibration(struct ath_hw *ah, ah->cal_samples = 0; } -static bool ath9k_hw_per_calibration(struct ath_hw *ah, - struct ath9k_channel *ichan, - u8 rxchainmask, - struct ath9k_cal_list *currCal) -{ - bool iscaldone = false; - - if (currCal->calState == CAL_RUNNING) { - if (!(REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) & - AR_PHY_TIMING_CTRL4_DO_CAL)) { - - currCal->calData->calCollect(ah); - ah->cal_samples++; - - if (ah->cal_samples >= currCal->calData->calNumSamples) { - int i, numChains = 0; - for (i = 0; i < AR5416_MAX_CHAINS; i++) { - if (rxchainmask & (1 << i)) - numChains++; - } - - currCal->calData->calPostProc(ah, numChains); - ichan->CalValid |= currCal->calData->calType; - currCal->calState = CAL_DONE; - iscaldone = true; - } else { - ath9k_hw_setup_calibration(ah, currCal); - } - } - } else if (!(ichan->CalValid & currCal->calData->calType)) { - ath9k_hw_reset_calibration(ah, currCal); - } - - return iscaldone; -} - -/* Assumes you are talking about the currently configured channel */ -static bool ath9k_hw_iscal_supported(struct ath_hw *ah, - enum ath9k_cal_types calType) -{ - struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; - - switch (calType & ah->supp_cals) { - case IQ_MISMATCH_CAL: /* Both 2 GHz and 5 GHz support OFDM */ - return true; - case ADC_GAIN_CAL: - case ADC_DC_CAL: - if (!(conf->channel->band == IEEE80211_BAND_2GHZ && - conf_is_ht20(conf))) - return true; - break; - } - return false; -} - -static void ath9k_hw_iqcal_collect(struct ath_hw *ah) -{ - int i; - - for (i = 0; i < AR5416_MAX_CHAINS; i++) { - ah->totalPowerMeasI[i] += - REG_READ(ah, AR_PHY_CAL_MEAS_0(i)); - ah->totalPowerMeasQ[i] += - REG_READ(ah, AR_PHY_CAL_MEAS_1(i)); - ah->totalIqCorrMeas[i] += - (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i)); - ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, - "%d: Chn %d pmi=0x%08x;pmq=0x%08x;iqcm=0x%08x;\n", - ah->cal_samples, i, ah->totalPowerMeasI[i], - ah->totalPowerMeasQ[i], - ah->totalIqCorrMeas[i]); - } -} - -static void ath9k_hw_adc_gaincal_collect(struct ath_hw *ah) -{ - int i; - - for (i = 0; i < AR5416_MAX_CHAINS; i++) { - ah->totalAdcIOddPhase[i] += - REG_READ(ah, AR_PHY_CAL_MEAS_0(i)); - ah->totalAdcIEvenPhase[i] += - REG_READ(ah, AR_PHY_CAL_MEAS_1(i)); - ah->totalAdcQOddPhase[i] += - REG_READ(ah, AR_PHY_CAL_MEAS_2(i)); - ah->totalAdcQEvenPhase[i] += - REG_READ(ah, AR_PHY_CAL_MEAS_3(i)); - - ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, - "%d: Chn %d oddi=0x%08x; eveni=0x%08x; " - "oddq=0x%08x; evenq=0x%08x;\n", - ah->cal_samples, i, - ah->totalAdcIOddPhase[i], - ah->totalAdcIEvenPhase[i], - ah->totalAdcQOddPhase[i], - ah->totalAdcQEvenPhase[i]); - } -} - -static void ath9k_hw_adc_dccal_collect(struct ath_hw *ah) -{ - int i; - - for (i = 0; i < AR5416_MAX_CHAINS; i++) { - ah->totalAdcDcOffsetIOddPhase[i] += - (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_0(i)); - ah->totalAdcDcOffsetIEvenPhase[i] += - (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_1(i)); - ah->totalAdcDcOffsetQOddPhase[i] += - (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i)); - ah->totalAdcDcOffsetQEvenPhase[i] += - (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_3(i)); - - ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, - "%d: Chn %d oddi=0x%08x; eveni=0x%08x; " - "oddq=0x%08x; evenq=0x%08x;\n", - ah->cal_samples, i, - ah->totalAdcDcOffsetIOddPhase[i], - ah->totalAdcDcOffsetIEvenPhase[i], - ah->totalAdcDcOffsetQOddPhase[i], - ah->totalAdcDcOffsetQEvenPhase[i]); - } -} - -static void ath9k_hw_iqcalibrate(struct ath_hw *ah, u8 numChains) -{ - struct ath_common *common = ath9k_hw_common(ah); - u32 powerMeasQ, powerMeasI, iqCorrMeas; - u32 qCoffDenom, iCoffDenom; - int32_t qCoff, iCoff; - int iqCorrNeg, i; - - for (i = 0; i < numChains; i++) { - powerMeasI = ah->totalPowerMeasI[i]; - powerMeasQ = ah->totalPowerMeasQ[i]; - iqCorrMeas = ah->totalIqCorrMeas[i]; - - ath_print(common, ATH_DBG_CALIBRATE, - "Starting IQ Cal and Correction for Chain %d\n", - i); - - ath_print(common, ATH_DBG_CALIBRATE, - "Orignal: Chn %diq_corr_meas = 0x%08x\n", - i, ah->totalIqCorrMeas[i]); - - iqCorrNeg = 0; - - if (iqCorrMeas > 0x80000000) { - iqCorrMeas = (0xffffffff - iqCorrMeas) + 1; - iqCorrNeg = 1; - } - - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_i = 0x%08x\n", i, powerMeasI); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_q = 0x%08x\n", i, powerMeasQ); - ath_print(common, ATH_DBG_CALIBRATE, "iqCorrNeg is 0x%08x\n", - iqCorrNeg); - - iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 128; - qCoffDenom = powerMeasQ / 64; - - if ((powerMeasQ != 0) && (iCoffDenom != 0) && - (qCoffDenom != 0)) { - iCoff = iqCorrMeas / iCoffDenom; - qCoff = powerMeasI / qCoffDenom - 64; - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d iCoff = 0x%08x\n", i, iCoff); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d qCoff = 0x%08x\n", i, qCoff); - - iCoff = iCoff & 0x3f; - ath_print(common, ATH_DBG_CALIBRATE, - "New: Chn %d iCoff = 0x%08x\n", i, iCoff); - if (iqCorrNeg == 0x0) - iCoff = 0x40 - iCoff; - - if (qCoff > 15) - qCoff = 15; - else if (qCoff <= -16) - qCoff = 16; - - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d : iCoff = 0x%x qCoff = 0x%x\n", - i, iCoff, qCoff); - - REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(i), - AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF, - iCoff); - REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(i), - AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF, - qCoff); - ath_print(common, ATH_DBG_CALIBRATE, - "IQ Cal and Correction done for Chain %d\n", - i); - } - } - - REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0), - AR_PHY_TIMING_CTRL4_IQCORR_ENABLE); -} - -static void ath9k_hw_adc_gaincal_calibrate(struct ath_hw *ah, u8 numChains) -{ - struct ath_common *common = ath9k_hw_common(ah); - u32 iOddMeasOffset, iEvenMeasOffset, qOddMeasOffset, qEvenMeasOffset; - u32 qGainMismatch, iGainMismatch, val, i; - - for (i = 0; i < numChains; i++) { - iOddMeasOffset = ah->totalAdcIOddPhase[i]; - iEvenMeasOffset = ah->totalAdcIEvenPhase[i]; - qOddMeasOffset = ah->totalAdcQOddPhase[i]; - qEvenMeasOffset = ah->totalAdcQEvenPhase[i]; - - ath_print(common, ATH_DBG_CALIBRATE, - "Starting ADC Gain Cal for Chain %d\n", i); - - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_odd_i = 0x%08x\n", i, - iOddMeasOffset); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_even_i = 0x%08x\n", i, - iEvenMeasOffset); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_odd_q = 0x%08x\n", i, - qOddMeasOffset); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_even_q = 0x%08x\n", i, - qEvenMeasOffset); - - if (iOddMeasOffset != 0 && qEvenMeasOffset != 0) { - iGainMismatch = - ((iEvenMeasOffset * 32) / - iOddMeasOffset) & 0x3f; - qGainMismatch = - ((qOddMeasOffset * 32) / - qEvenMeasOffset) & 0x3f; - - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d gain_mismatch_i = 0x%08x\n", i, - iGainMismatch); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d gain_mismatch_q = 0x%08x\n", i, - qGainMismatch); - - val = REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i)); - val &= 0xfffff000; - val |= (qGainMismatch) | (iGainMismatch << 6); - REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i), val); - - ath_print(common, ATH_DBG_CALIBRATE, - "ADC Gain Cal done for Chain %d\n", i); - } - } - - REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0), - REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0)) | - AR_PHY_NEW_ADC_GAIN_CORR_ENABLE); -} - -static void ath9k_hw_adc_dccal_calibrate(struct ath_hw *ah, u8 numChains) -{ - struct ath_common *common = ath9k_hw_common(ah); - u32 iOddMeasOffset, iEvenMeasOffset, val, i; - int32_t qOddMeasOffset, qEvenMeasOffset, qDcMismatch, iDcMismatch; - const struct ath9k_percal_data *calData = - ah->cal_list_curr->calData; - u32 numSamples = - (1 << (calData->calCountMax + 5)) * calData->calNumSamples; - - for (i = 0; i < numChains; i++) { - iOddMeasOffset = ah->totalAdcDcOffsetIOddPhase[i]; - iEvenMeasOffset = ah->totalAdcDcOffsetIEvenPhase[i]; - qOddMeasOffset = ah->totalAdcDcOffsetQOddPhase[i]; - qEvenMeasOffset = ah->totalAdcDcOffsetQEvenPhase[i]; - - ath_print(common, ATH_DBG_CALIBRATE, - "Starting ADC DC Offset Cal for Chain %d\n", i); - - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_odd_i = %d\n", i, - iOddMeasOffset); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_even_i = %d\n", i, - iEvenMeasOffset); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_odd_q = %d\n", i, - qOddMeasOffset); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d pwr_meas_even_q = %d\n", i, - qEvenMeasOffset); - - iDcMismatch = (((iEvenMeasOffset - iOddMeasOffset) * 2) / - numSamples) & 0x1ff; - qDcMismatch = (((qOddMeasOffset - qEvenMeasOffset) * 2) / - numSamples) & 0x1ff; - - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d dc_offset_mismatch_i = 0x%08x\n", i, - iDcMismatch); - ath_print(common, ATH_DBG_CALIBRATE, - "Chn %d dc_offset_mismatch_q = 0x%08x\n", i, - qDcMismatch); - - val = REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i)); - val &= 0xc0000fff; - val |= (qDcMismatch << 12) | (iDcMismatch << 21); - REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i), val); - - ath_print(common, ATH_DBG_CALIBRATE, - "ADC DC Offset Cal done for Chain %d\n", i); - } - - REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0), - REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0)) | - AR_PHY_NEW_ADC_DC_OFFSET_CORR_ENABLE); -} - /* This is done for the currently configured channel */ bool ath9k_hw_reset_calvalid(struct ath_hw *ah) { @@ -605,72 +172,6 @@ void ath9k_hw_start_nfcal(struct ath_hw *ah) REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF); } -void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) -{ - struct ath9k_nfcal_hist *h; - int i, j; - int32_t val; - const u32 ar5416_cca_regs[6] = { - AR_PHY_CCA, - AR_PHY_CH1_CCA, - AR_PHY_CH2_CCA, - AR_PHY_EXT_CCA, - AR_PHY_CH1_EXT_CCA, - AR_PHY_CH2_EXT_CCA - }; - u8 chainmask, rx_chain_status; - - rx_chain_status = REG_READ(ah, AR_PHY_RX_CHAINMASK); - if (AR_SREV_9285(ah)) - chainmask = 0x9; - else if (AR_SREV_9280(ah) || AR_SREV_9287(ah)) { - if ((rx_chain_status & 0x2) || (rx_chain_status & 0x4)) - chainmask = 0x1B; - else - chainmask = 0x09; - } else { - if (rx_chain_status & 0x4) - chainmask = 0x3F; - else if (rx_chain_status & 0x2) - chainmask = 0x1B; - else - chainmask = 0x09; - } - - h = ah->nfCalHist; - - for (i = 0; i < NUM_NF_READINGS; i++) { - if (chainmask & (1 << i)) { - val = REG_READ(ah, ar5416_cca_regs[i]); - val &= 0xFFFFFE00; - val |= (((u32) (h[i].privNF) << 1) & 0x1ff); - REG_WRITE(ah, ar5416_cca_regs[i], val); - } - } - - REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, - AR_PHY_AGC_CONTROL_ENABLE_NF); - REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, - AR_PHY_AGC_CONTROL_NO_UPDATE_NF); - REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF); - - for (j = 0; j < 5; j++) { - if ((REG_READ(ah, AR_PHY_AGC_CONTROL) & - AR_PHY_AGC_CONTROL_NF) == 0) - break; - udelay(50); - } - - for (i = 0; i < NUM_NF_READINGS; i++) { - if (chainmask & (1 << i)) { - val = REG_READ(ah, ar5416_cca_regs[i]); - val &= 0xFFFFFE00; - val |= (((u32) (-50) << 1) & 0x1ff); - REG_WRITE(ah, ar5416_cca_regs[i], val); - } - } -} - int16_t ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan) { @@ -690,7 +191,7 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah, } else { ath9k_hw_do_getnf(ah, nfarray); nf = nfarray[0]; - if (getNoiseFloorThresh(ah, c->band, &nfThresh) + if (ath9k_hw_get_nf_thresh(ah, c->band, &nfThresh) && nf > nfThresh) { ath_print(common, ATH_DBG_CALIBRATE, "noise floor failed detected; " @@ -715,7 +216,7 @@ void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah) if (AR_SREV_9280(ah)) noise_floor = AR_PHY_CCA_MAX_AR9280_GOOD_VALUE; - else if (AR_SREV_9285(ah)) + else if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) noise_floor = AR_PHY_CCA_MAX_AR9285_GOOD_VALUE; else if (AR_SREV_9287(ah)) noise_floor = AR_PHY_CCA_MAX_AR9287_GOOD_VALUE; @@ -748,508 +249,3 @@ s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan) return nf; } EXPORT_SYMBOL(ath9k_hw_getchan_noise); - -static void ath9k_olc_temp_compensation_9287(struct ath_hw *ah) -{ - u32 rddata; - int32_t delta, currPDADC, slope; - - rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4); - currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT); - - if (ah->initPDADC == 0 || currPDADC == 0) { - /* - * Zero value indicates that no frames have been transmitted yet, - * can't do temperature compensation until frames are transmitted. - */ - return; - } else { - slope = ah->eep_ops->get_eeprom(ah, EEP_TEMPSENSE_SLOPE); - - if (slope == 0) { /* to avoid divide by zero case */ - delta = 0; - } else { - delta = ((currPDADC - ah->initPDADC)*4) / slope; - } - REG_RMW_FIELD(ah, AR_PHY_CH0_TX_PWRCTRL11, - AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta); - REG_RMW_FIELD(ah, AR_PHY_CH1_TX_PWRCTRL11, - AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta); - } -} - -static void ath9k_olc_temp_compensation(struct ath_hw *ah) -{ - u32 rddata, i; - int delta, currPDADC, regval; - - if (OLC_FOR_AR9287_10_LATER) { - ath9k_olc_temp_compensation_9287(ah); - } else { - rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4); - currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT); - - if (ah->initPDADC == 0 || currPDADC == 0) { - return; - } else { - if (ah->eep_ops->get_eeprom(ah, EEP_DAC_HPWR_5G)) - delta = (currPDADC - ah->initPDADC + 4) / 8; - else - delta = (currPDADC - ah->initPDADC + 5) / 10; - - if (delta != ah->PDADCdelta) { - ah->PDADCdelta = delta; - for (i = 1; i < AR9280_TX_GAIN_TABLE_SIZE; i++) { - regval = ah->originalGain[i] - delta; - if (regval < 0) - regval = 0; - - REG_RMW_FIELD(ah, - AR_PHY_TX_GAIN_TBL1 + i * 4, - AR_PHY_TX_GAIN, regval); - } - } - } - } -} - -static void ath9k_hw_9271_pa_cal(struct ath_hw *ah, bool is_reset) -{ - u32 regVal; - unsigned int i; - u32 regList [][2] = { - { 0x786c, 0 }, - { 0x7854, 0 }, - { 0x7820, 0 }, - { 0x7824, 0 }, - { 0x7868, 0 }, - { 0x783c, 0 }, - { 0x7838, 0 } , - { 0x7828, 0 } , - }; - - for (i = 0; i < ARRAY_SIZE(regList); i++) - regList[i][1] = REG_READ(ah, regList[i][0]); - - regVal = REG_READ(ah, 0x7834); - regVal &= (~(0x1)); - REG_WRITE(ah, 0x7834, regVal); - regVal = REG_READ(ah, 0x9808); - regVal |= (0x1 << 27); - REG_WRITE(ah, 0x9808, regVal); - - /* 786c,b23,1, pwddac=1 */ - REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1); - /* 7854, b5,1, pdrxtxbb=1 */ - REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1); - /* 7854, b7,1, pdv2i=1 */ - REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1); - /* 7854, b8,1, pddacinterface=1 */ - REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1); - /* 7824,b12,0, offcal=0 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0); - /* 7838, b1,0, pwddb=0 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0); - /* 7820,b11,0, enpacal=0 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0); - /* 7820,b25,1, pdpadrv1=0 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0); - /* 7820,b24,0, pdpadrv2=0 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G1,AR9285_AN_RF2G1_PDPADRV2,0); - /* 7820,b23,0, pdpaout=0 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0); - /* 783c,b14-16,7, padrvgn2tab_0=7 */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G8,AR9285_AN_RF2G8_PADRVGN2TAB0, 7); - /* - * 7838,b29-31,0, padrvgn1tab_0=0 - * does not matter since we turn it off - */ - REG_RMW_FIELD(ah, AR9285_AN_RF2G7,AR9285_AN_RF2G7_PADRVGN2TAB0, 0); - - REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9271_AN_RF2G3_CCOMP, 0xfff); - - /* Set: - * localmode=1,bmode=1,bmoderxtx=1,synthon=1, - * txon=1,paon=1,oscon=1,synthon_force=1 - */ - REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0); - udelay(30); - REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0); - - /* find off_6_1; */ - for (i = 6; i > 0; i--) { - regVal = REG_READ(ah, 0x7834); - regVal |= (1 << (20 + i)); - REG_WRITE(ah, 0x7834, regVal); - udelay(1); - //regVal = REG_READ(ah, 0x7834); - regVal &= (~(0x1 << (20 + i))); - regVal |= (MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9) - << (20 + i)); - REG_WRITE(ah, 0x7834, regVal); - } - - regVal = (regVal >>20) & 0x7f; - - /* Update PA cal info */ - if ((!is_reset) && (ah->pacal_info.prev_offset == regVal)) { - if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT) - ah->pacal_info.max_skipcount = - 2 * ah->pacal_info.max_skipcount; - ah->pacal_info.skipcount = ah->pacal_info.max_skipcount; - } else { - ah->pacal_info.max_skipcount = 1; - ah->pacal_info.skipcount = 0; - ah->pacal_info.prev_offset = regVal; - } - - regVal = REG_READ(ah, 0x7834); - regVal |= 0x1; - REG_WRITE(ah, 0x7834, regVal); - regVal = REG_READ(ah, 0x9808); - regVal &= (~(0x1 << 27)); - REG_WRITE(ah, 0x9808, regVal); - - for (i = 0; i < ARRAY_SIZE(regList); i++) - REG_WRITE(ah, regList[i][0], regList[i][1]); -} - -static inline void ath9k_hw_9285_pa_cal(struct ath_hw *ah, bool is_reset) -{ - struct ath_common *common = ath9k_hw_common(ah); - u32 regVal; - int i, offset, offs_6_1, offs_0; - u32 ccomp_org, reg_field; - u32 regList[][2] = { - { 0x786c, 0 }, - { 0x7854, 0 }, - { 0x7820, 0 }, - { 0x7824, 0 }, - { 0x7868, 0 }, - { 0x783c, 0 }, - { 0x7838, 0 }, - }; - - ath_print(common, ATH_DBG_CALIBRATE, "Running PA Calibration\n"); - - /* PA CAL is not needed for high power solution */ - if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == - AR5416_EEP_TXGAIN_HIGH_POWER) - return; - - if (AR_SREV_9285_11(ah)) { - REG_WRITE(ah, AR9285_AN_TOP4, (AR9285_AN_TOP4_DEFAULT | 0x14)); - udelay(10); - } - - for (i = 0; i < ARRAY_SIZE(regList); i++) - regList[i][1] = REG_READ(ah, regList[i][0]); - - regVal = REG_READ(ah, 0x7834); - regVal &= (~(0x1)); - REG_WRITE(ah, 0x7834, regVal); - regVal = REG_READ(ah, 0x9808); - regVal |= (0x1 << 27); - REG_WRITE(ah, 0x9808, regVal); - - REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1); - REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1); - REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1); - REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1); - REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV2, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G8, AR9285_AN_RF2G8_PADRVGN2TAB0, 7); - REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PADRVGN2TAB0, 0); - ccomp_org = MS(REG_READ(ah, AR9285_AN_RF2G6), AR9285_AN_RF2G6_CCOMP); - REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_CCOMP, 0xf); - - REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0); - udelay(30); - REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_OFFS, 0); - REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, 0); - - for (i = 6; i > 0; i--) { - regVal = REG_READ(ah, 0x7834); - regVal |= (1 << (19 + i)); - REG_WRITE(ah, 0x7834, regVal); - udelay(1); - regVal = REG_READ(ah, 0x7834); - regVal &= (~(0x1 << (19 + i))); - reg_field = MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9); - regVal |= (reg_field << (19 + i)); - REG_WRITE(ah, 0x7834, regVal); - } - - REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, 1); - udelay(1); - reg_field = MS(REG_READ(ah, AR9285_AN_RF2G9), AR9285_AN_RXTXBB1_SPARE9); - REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, reg_field); - offs_6_1 = MS(REG_READ(ah, AR9285_AN_RF2G6), AR9285_AN_RF2G6_OFFS); - offs_0 = MS(REG_READ(ah, AR9285_AN_RF2G3), AR9285_AN_RF2G3_PDVCCOMP); - - offset = (offs_6_1<<1) | offs_0; - offset = offset - 0; - offs_6_1 = offset>>1; - offs_0 = offset & 1; - - if ((!is_reset) && (ah->pacal_info.prev_offset == offset)) { - if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT) - ah->pacal_info.max_skipcount = - 2 * ah->pacal_info.max_skipcount; - ah->pacal_info.skipcount = ah->pacal_info.max_skipcount; - } else { - ah->pacal_info.max_skipcount = 1; - ah->pacal_info.skipcount = 0; - ah->pacal_info.prev_offset = offset; - } - - REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_OFFS, offs_6_1); - REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, offs_0); - - regVal = REG_READ(ah, 0x7834); - regVal |= 0x1; - REG_WRITE(ah, 0x7834, regVal); - regVal = REG_READ(ah, 0x9808); - regVal &= (~(0x1 << 27)); - REG_WRITE(ah, 0x9808, regVal); - - for (i = 0; i < ARRAY_SIZE(regList); i++) - REG_WRITE(ah, regList[i][0], regList[i][1]); - - REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_CCOMP, ccomp_org); - - if (AR_SREV_9285_11(ah)) - REG_WRITE(ah, AR9285_AN_TOP4, AR9285_AN_TOP4_DEFAULT); - -} - -bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan, - u8 rxchainmask, bool longcal) -{ - bool iscaldone = true; - struct ath9k_cal_list *currCal = ah->cal_list_curr; - - if (currCal && - (currCal->calState == CAL_RUNNING || - currCal->calState == CAL_WAITING)) { - iscaldone = ath9k_hw_per_calibration(ah, chan, - rxchainmask, currCal); - if (iscaldone) { - ah->cal_list_curr = currCal = currCal->calNext; - - if (currCal->calState == CAL_WAITING) { - iscaldone = false; - ath9k_hw_reset_calibration(ah, currCal); - } - } - } - - /* Do NF cal only at longer intervals */ - if (longcal) { - /* Do periodic PAOffset Cal */ - if (AR_SREV_9271(ah)) - ath9k_hw_9271_pa_cal(ah, false); - else if (AR_SREV_9285_11_OR_LATER(ah)) { - if (!ah->pacal_info.skipcount) - ath9k_hw_9285_pa_cal(ah, false); - else - ah->pacal_info.skipcount--; - } - - if (OLC_FOR_AR9280_20_LATER || OLC_FOR_AR9287_10_LATER) - ath9k_olc_temp_compensation(ah); - - /* Get the value from the previous NF cal and update history buffer */ - ath9k_hw_getnf(ah, chan); - - /* - * Load the NF from history buffer of the current channel. - * NF is slow time-variant, so it is OK to use a historical value. - */ - ath9k_hw_loadnf(ah, ah->curchan); - - ath9k_hw_start_nfcal(ah); - } - - return iscaldone; -} -EXPORT_SYMBOL(ath9k_hw_calibrate); - -/* Carrier leakage Calibration fix */ -static bool ar9285_clc(struct ath_hw *ah, struct ath9k_channel *chan) -{ - struct ath_common *common = ath9k_hw_common(ah); - - REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE); - if (IS_CHAN_HT20(chan)) { - REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE); - REG_SET_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN); - REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, - AR_PHY_AGC_CONTROL_FLTR_CAL); - REG_CLR_BIT(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_CAL_ENABLE); - REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL); - if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, - AR_PHY_AGC_CONTROL_CAL, 0, AH_WAIT_TIMEOUT)) { - ath_print(common, ATH_DBG_CALIBRATE, "offset " - "calibration failed to complete in " - "1ms; noisy ??\n"); - return false; - } - REG_CLR_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN); - REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE); - REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE); - } - REG_CLR_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC); - REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL); - REG_SET_BIT(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_CAL_ENABLE); - REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL); - if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL, - 0, AH_WAIT_TIMEOUT)) { - ath_print(common, ATH_DBG_CALIBRATE, "offset calibration " - "failed to complete in 1ms; noisy ??\n"); - return false; - } - - REG_SET_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC); - REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE); - REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL); - - return true; -} - -bool ath9k_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) -{ - struct ath_common *common = ath9k_hw_common(ah); - - if (AR_SREV_9271(ah) || AR_SREV_9285_12_OR_LATER(ah)) { - if (!ar9285_clc(ah, chan)) - return false; - } else { - if (AR_SREV_9280_10_OR_LATER(ah)) { - if (!AR_SREV_9287_10_OR_LATER(ah)) - REG_CLR_BIT(ah, AR_PHY_ADC_CTL, - AR_PHY_ADC_CTL_OFF_PWDADC); - REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, - AR_PHY_AGC_CONTROL_FLTR_CAL); - } - - /* Calibrate the AGC */ - REG_WRITE(ah, AR_PHY_AGC_CONTROL, - REG_READ(ah, AR_PHY_AGC_CONTROL) | - AR_PHY_AGC_CONTROL_CAL); - - /* Poll for offset calibration complete */ - if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL, - 0, AH_WAIT_TIMEOUT)) { - ath_print(common, ATH_DBG_CALIBRATE, - "offset calibration failed to " - "complete in 1ms; noisy environment?\n"); - return false; - } - - if (AR_SREV_9280_10_OR_LATER(ah)) { - if (!AR_SREV_9287_10_OR_LATER(ah)) - REG_SET_BIT(ah, AR_PHY_ADC_CTL, - AR_PHY_ADC_CTL_OFF_PWDADC); - REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, - AR_PHY_AGC_CONTROL_FLTR_CAL); - } - } - - /* Do PA Calibration */ - if (AR_SREV_9271(ah)) - ath9k_hw_9271_pa_cal(ah, true); - else if (AR_SREV_9285_11_OR_LATER(ah)) - ath9k_hw_9285_pa_cal(ah, true); - - /* Do NF Calibration after DC offset and other calibrations */ - REG_WRITE(ah, AR_PHY_AGC_CONTROL, - REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_NF); - - ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; - - /* Enable IQ, ADC Gain and ADC DC offset CALs */ - if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah)) { - if (ath9k_hw_iscal_supported(ah, ADC_GAIN_CAL)) { - INIT_CAL(&ah->adcgain_caldata); - INSERT_CAL(ah, &ah->adcgain_caldata); - ath_print(common, ATH_DBG_CALIBRATE, - "enabling ADC Gain Calibration.\n"); - } - if (ath9k_hw_iscal_supported(ah, ADC_DC_CAL)) { - INIT_CAL(&ah->adcdc_caldata); - INSERT_CAL(ah, &ah->adcdc_caldata); - ath_print(common, ATH_DBG_CALIBRATE, - "enabling ADC DC Calibration.\n"); - } - if (ath9k_hw_iscal_supported(ah, IQ_MISMATCH_CAL)) { - INIT_CAL(&ah->iq_caldata); - INSERT_CAL(ah, &ah->iq_caldata); - ath_print(common, ATH_DBG_CALIBRATE, - "enabling IQ Calibration.\n"); - } - - ah->cal_list_curr = ah->cal_list; - - if (ah->cal_list_curr) - ath9k_hw_reset_calibration(ah, ah->cal_list_curr); - } - - chan->CalValid = 0; - - return true; -} - -const struct ath9k_percal_data iq_cal_multi_sample = { - IQ_MISMATCH_CAL, - MAX_CAL_SAMPLES, - PER_MIN_LOG_COUNT, - ath9k_hw_iqcal_collect, - ath9k_hw_iqcalibrate -}; -const struct ath9k_percal_data iq_cal_single_sample = { - IQ_MISMATCH_CAL, - MIN_CAL_SAMPLES, - PER_MAX_LOG_COUNT, - ath9k_hw_iqcal_collect, - ath9k_hw_iqcalibrate -}; -const struct ath9k_percal_data adc_gain_cal_multi_sample = { - ADC_GAIN_CAL, - MAX_CAL_SAMPLES, - PER_MIN_LOG_COUNT, - ath9k_hw_adc_gaincal_collect, - ath9k_hw_adc_gaincal_calibrate -}; -const struct ath9k_percal_data adc_gain_cal_single_sample = { - ADC_GAIN_CAL, - MIN_CAL_SAMPLES, - PER_MAX_LOG_COUNT, - ath9k_hw_adc_gaincal_collect, - ath9k_hw_adc_gaincal_calibrate -}; -const struct ath9k_percal_data adc_dc_cal_multi_sample = { - ADC_DC_CAL, - MAX_CAL_SAMPLES, - PER_MIN_LOG_COUNT, - ath9k_hw_adc_dccal_collect, - ath9k_hw_adc_dccal_calibrate -}; -const struct ath9k_percal_data adc_dc_cal_single_sample = { - ADC_DC_CAL, - MIN_CAL_SAMPLES, - PER_MAX_LOG_COUNT, - ath9k_hw_adc_dccal_collect, - ath9k_hw_adc_dccal_calibrate -}; -const struct ath9k_percal_data adc_init_dc_cal = { - ADC_DC_INIT_CAL, - MIN_CAL_SAMPLES, - INIT_LOG_COUNT, - ath9k_hw_adc_dccal_collect, - ath9k_hw_adc_dccal_calibrate -}; |