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;
}
bool ath9k_hw_init_cal(struct ath_hal *ah,
struct ath9k_channel *chan)
{
struct ath_hal_5416 *ahp = AH5416(ah);
struct ath9k_channel *ichan = ath9k_regd_check_channel(ah, chan);
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)) {
DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE,
"offset calibration failed to complete in 1ms; "
"noisy environment?\n");
return false;
}
if (AR_SREV_9285(ah) && AR_SREV_9285_11_OR_LATER(ah))
ath9k_hw_9285_pa_cal(ah);
REG_WRITE(ah, AR_PHY_AGC_CONTROL,
REG_READ(ah, AR_PHY_AGC_CONTROL) |
AR_PHY_AGC_CONTROL_NF);
ahp->ah_cal_list = ahp->ah_cal_list_last = ahp->ah_cal_list_curr = NULL;
if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah)) {
if (ath9k_hw_iscal_supported(ah, chan, ADC_GAIN_CAL)) {
INIT_CAL(&ahp->ah_adcGainCalData);
INSERT_CAL(ahp, &ahp->ah_adcGainCalData);
DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE,
"enabling ADC Gain Calibration.\n");
}
if (ath9k_hw_iscal_supported(ah, chan, ADC_DC_CAL)) {
INIT_CAL(&ahp->ah_adcDcCalData);
INSERT_CAL(ahp, &ahp->ah_adcDcCalData);
DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE,
"enabling ADC DC Calibration.\n");
}
if (ath9k_hw_iscal_supported(ah, chan, IQ_MISMATCH_CAL)) {
INIT_CAL(&ahp->ah_iqCalData);
INSERT_CAL(ahp, &ahp->ah_iqCalData);
DPRINTF(ah->ah_sc, ATH_DBG_CALIBRATE,
"enabling IQ Calibration.\n");
}
ahp->ah_cal_list_curr = ahp->ah_cal_list;
if (ahp->ah_cal_list_curr)
ath9k_hw_reset_calibration(ah, ahp->ah_cal_list_curr);
}
ichan->CalValid = 0;
return true;
}
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);
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;
}
bool ath9k_hw_calibrate(struct ath_hal *ah, struct ath9k_channel *chan,
u8 rxchainmask, bool longcal,
bool *isCalDone)
{
struct ath_hal_5416 *ahp = AH5416(ah);
struct hal_cal_list *currCal = ahp->ah_cal_list_curr;
struct ath9k_channel *ichan = ath9k_regd_check_channel(ah, chan);
*isCalDone = true;
if (ichan == NULL) {
DPRINTF(ah->ah_sc, ATH_DBG_CHANNEL,
"invalid channel %u/0x%x; no mapping\n",
chan->channel, chan->channelFlags);
return false;
}
if (currCal &&
(currCal->calState == CAL_RUNNING ||
currCal->calState == CAL_WAITING)) {
ath9k_hw_per_calibration(ah, ichan, rxchainmask, currCal,
isCalDone);
if (*isCalDone) {
ahp->ah_cal_list_curr = currCal = currCal->calNext;
if (currCal->calState == CAL_WAITING) {
*isCalDone = false;
ath9k_hw_reset_calibration(ah, currCal);
}
}
}
if (longcal) {
ath9k_hw_getnf(ah, ichan);
ath9k_hw_loadnf(ah, ah->ah_curchan);
ath9k_hw_start_nfcal(ah);
if ((ichan->channelFlags & CHANNEL_CW_INT) != 0) {
chan->channelFlags |= CHANNEL_CW_INT;
ichan->channelFlags &= ~CHANNEL_CW_INT;
}
}
return true;
}
bool ath9k_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
{
if (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)) {
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)) {
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_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);
DPRINTF(ah->ah_sc, 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);
DPRINTF(ah->ah_sc, 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);
DPRINTF(ah->ah_sc, 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;
}
