X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fath%2Fath9k%2Fcalib.c;h=20f74b5b5703f178cfae2db3f6f554c2848870ef;hb=db91f2e4d410bf3011b3649b9257e5b3c60b25ff;hp=a0661bb967234a4defa9b5dd8ea4709a943ec335;hpb=379f04407c92d84f2506385b66fb9fc89ecd96c3;p=pandora-kernel.git diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index a0661bb96723..20f74b5b5703 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -116,7 +116,7 @@ static void ath9k_hw_do_getnf(struct ath_hw *ah, "NF calibrated [ctl] [chain 1] is %d\n", nf); nfarray[1] = nf; - if (!AR_SREV_9280(ah)) { + 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) @@ -154,7 +154,7 @@ static void ath9k_hw_do_getnf(struct ath_hw *ah, "NF calibrated [ext] [chain 1] is %d\n", nf); nfarray[4] = nf; - if (!AR_SREV_9280(ah)) { + 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) @@ -186,7 +186,7 @@ static bool getNoiseFloorThresh(struct ath_hw *ah, } static void ath9k_hw_setup_calibration(struct ath_hw *ah, - struct hal_cal_list *currCal) + struct ath9k_cal_list *currCal) { REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(0), AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX, @@ -220,7 +220,7 @@ static void ath9k_hw_setup_calibration(struct ath_hw *ah, } static void ath9k_hw_reset_calibration(struct ath_hw *ah, - struct hal_cal_list *currCal) + struct ath9k_cal_list *currCal) { int i; @@ -241,7 +241,7 @@ static void ath9k_hw_reset_calibration(struct ath_hw *ah, static bool ath9k_hw_per_calibration(struct ath_hw *ah, struct ath9k_channel *ichan, u8 rxchainmask, - struct hal_cal_list *currCal) + struct ath9k_cal_list *currCal) { bool iscaldone = false; @@ -276,7 +276,7 @@ static bool ath9k_hw_per_calibration(struct ath_hw *ah, /* Assumes you are talking about the currently configured channel */ static bool ath9k_hw_iscal_supported(struct ath_hw *ah, - enum hal_cal_types calType) + enum ath9k_cal_types calType) { struct ieee80211_conf *conf = &ah->ah_sc->hw->conf; @@ -499,7 +499,7 @@ static void ath9k_hw_adc_dccal_calibrate(struct ath_hw *ah, u8 numChains) { u32 iOddMeasOffset, iEvenMeasOffset, val, i; int32_t qOddMeasOffset, qEvenMeasOffset, qDcMismatch, iDcMismatch; - const struct hal_percal_data *calData = + const struct ath9k_percal_data *calData = ah->cal_list_curr->calData; u32 numSamples = (1 << (calData->calCountMax + 5)) * calData->calNumSamples; @@ -556,7 +556,7 @@ static void ath9k_hw_adc_dccal_calibrate(struct ath_hw *ah, u8 numChains) bool ath9k_hw_reset_calvalid(struct ath_hw *ah) { struct ieee80211_conf *conf = &ah->ah_sc->hw->conf; - struct hal_cal_list *currCal = ah->cal_list_curr; + struct ath9k_cal_list *currCal = ah->cal_list_curr; if (!ah->curchan) return true; @@ -613,7 +613,7 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) if (AR_SREV_9285(ah)) chainmask = 0x9; - else if (AR_SREV_9280(ah)) + else if (AR_SREV_9280(ah) || AR_SREV_9287(ah)) chainmask = 0x1B; else chainmask = 0x3F; @@ -691,15 +691,22 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah, void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah) { int i, j; + s16 noise_floor; + + if (AR_SREV_9280(ah)) + noise_floor = AR_PHY_CCA_MAX_AR9280_GOOD_VALUE; + else if (AR_SREV_9285(ah)) + noise_floor = AR_PHY_CCA_MAX_AR9285_GOOD_VALUE; + else + noise_floor = AR_PHY_CCA_MAX_AR5416_GOOD_VALUE; for (i = 0; i < NUM_NF_READINGS; i++) { ah->nfCalHist[i].currIndex = 0; - ah->nfCalHist[i].privNF = AR_PHY_CCA_MAX_GOOD_VALUE; + ah->nfCalHist[i].privNF = noise_floor; ah->nfCalHist[i].invalidNFcount = AR_PHY_CCA_FILTERWINDOW_LENGTH; for (j = 0; j < ATH9K_NF_CAL_HIST_MAX; j++) { - ah->nfCalHist[i].nfCalBuffer[j] = - AR_PHY_CCA_MAX_GOOD_VALUE; + ah->nfCalHist[i].nfCalBuffer[j] = noise_floor; } } } @@ -722,30 +729,138 @@ s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan) static void ath9k_olc_temp_compensation(struct ath_hw *ah) { u32 rddata, i; - int delta, currPDADC, regval; + int delta, currPDADC, regval, slope; rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4); - currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT); - 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; + if (OLC_FOR_AR9287_10_LATER) { + if (ah->initPDADC == 0 || currPDADC == 0) { + return; + } else { + slope = ah->eep_ops->get_eeprom(ah, EEP_TEMPSENSE_SLOPE); + if (slope == 0) + 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); + } + } 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); + 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) +{ + 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); + } + + /* Empirical offset correction */ +#if 0 + REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0x20); +#endif + + 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) { @@ -845,7 +960,7 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan, u8 rxchainmask, bool longcal) { bool iscaldone = true; - struct hal_cal_list *currCal = ah->cal_list_curr; + struct ath9k_cal_list *currCal = ah->cal_list_curr; if (currCal && (currCal->calState == CAL_RUNNING || @@ -862,18 +977,27 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan, } } + /* Do NF cal only at longer intervals */ if (longcal) { - if (AR_SREV_9285(ah) && AR_SREV_9285_11_OR_LATER(ah)) + /* Do periodic PAOffset Cal */ + if (AR_SREV_9271(ah)) + ath9k_hw_9271_pa_cal(ah); + else if (AR_SREV_9285_11_OR_LATER(ah)) ath9k_hw_9285_pa_cal(ah); - if (OLC_FOR_AR9280_20_LATER) + 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); - if (chan->channelFlags & CHANNEL_CW_INT) - chan->channelFlags &= ~CHANNEL_CW_INT; + ath9k_hw_start_nfcal(ah); } return iscaldone; @@ -918,83 +1042,72 @@ static bool ar9285_clc(struct ath_hw *ah, struct ath9k_channel *chan) return true; } -bool ath9k_hw_init_cal(struct ath_hw *ah, - struct ath9k_channel *chan) +bool ath9k_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) { - if (AR_SREV_9285(ah) && AR_SREV_9285_12_OR_LATER(ah)) { + if (AR_SREV_9285_12_OR_LATER(ah)) { if (!ar9285_clc(ah, chan)) return false; - } else if (AR_SREV_9280_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); - REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE); + } 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); + } - /* Kick off the cal */ + /* Calibrate the AGC */ REG_WRITE(ah, AR_PHY_AGC_CONTROL, - REG_READ(ah, AR_PHY_AGC_CONTROL) | - AR_PHY_AGC_CONTROL_CAL); + REG_READ(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)) { + /* Poll for offset calibration complete */ + if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL, + 0, AH_WAIT_TIMEOUT)) { DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE, "offset calibration failed to complete in 1ms; " "noisy environment?\n"); return false; } - 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_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE); - } - - /* Calibrate the AGC */ - REG_WRITE(ah, AR_PHY_AGC_CONTROL, - REG_READ(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)) { - DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE, - "offset calibration failed to complete in 1ms; " - "noisy environment?\n"); - return false; - } - - if (AR_SREV_9280_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); + 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_9285(ah) && AR_SREV_9285_11_OR_LATER(ah)) + if (AR_SREV_9285_11_OR_LATER(ah)) ath9k_hw_9285_pa_cal(ah); - /* Do NF Calibration */ + /* 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); + 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); DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE, - "enabling ADC Gain Calibration.\n"); + "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); DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE, - "enabling ADC DC Calibration.\n"); + "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); DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE, - "enabling IQ Calibration.\n"); + "enabling IQ Calibration.\n"); } ah->cal_list_curr = ah->cal_list; @@ -1008,49 +1121,49 @@ bool ath9k_hw_init_cal(struct ath_hw *ah, return true; } -const struct hal_percal_data iq_cal_multi_sample = { +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 hal_percal_data iq_cal_single_sample = { +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 hal_percal_data adc_gain_cal_multi_sample = { +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 hal_percal_data adc_gain_cal_single_sample = { +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 hal_percal_data adc_dc_cal_multi_sample = { +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 hal_percal_data adc_dc_cal_single_sample = { +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 hal_percal_data adc_init_dc_cal = { +const struct ath9k_percal_data adc_init_dc_cal = { ADC_DC_INIT_CAL, MIN_CAL_SAMPLES, INIT_LOG_COUNT,