| /* |
| * Copyright (c) 2008-2011 Atheros Communications Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "hw.h" |
| |
| static inline u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz) |
| { |
| if (fbin == AR5416_BCHAN_UNUSED) |
| return fbin; |
| |
| return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); |
| } |
| |
| void ath9k_hw_analog_shift_regwrite(struct ath_hw *ah, u32 reg, u32 val) |
| { |
| REG_WRITE(ah, reg, val); |
| |
| if (ah->config.analog_shiftreg) |
| udelay(100); |
| } |
| |
| void ath9k_hw_analog_shift_rmw(struct ath_hw *ah, u32 reg, u32 mask, |
| u32 shift, u32 val) |
| { |
| u32 regVal; |
| |
| regVal = REG_READ(ah, reg) & ~mask; |
| regVal |= (val << shift) & mask; |
| |
| REG_WRITE(ah, reg, regVal); |
| |
| if (ah->config.analog_shiftreg) |
| udelay(100); |
| } |
| |
| int16_t ath9k_hw_interpolate(u16 target, u16 srcLeft, u16 srcRight, |
| int16_t targetLeft, int16_t targetRight) |
| { |
| int16_t rv; |
| |
| if (srcRight == srcLeft) { |
| rv = targetLeft; |
| } else { |
| rv = (int16_t) (((target - srcLeft) * targetRight + |
| (srcRight - target) * targetLeft) / |
| (srcRight - srcLeft)); |
| } |
| return rv; |
| } |
| |
| bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList, u16 listSize, |
| u16 *indexL, u16 *indexR) |
| { |
| u16 i; |
| |
| if (target <= pList[0]) { |
| *indexL = *indexR = 0; |
| return true; |
| } |
| if (target >= pList[listSize - 1]) { |
| *indexL = *indexR = (u16) (listSize - 1); |
| return true; |
| } |
| |
| for (i = 0; i < listSize - 1; i++) { |
| if (pList[i] == target) { |
| *indexL = *indexR = i; |
| return true; |
| } |
| if (target < pList[i + 1]) { |
| *indexL = i; |
| *indexR = (u16) (i + 1); |
| return false; |
| } |
| } |
| return false; |
| } |
| |
| void ath9k_hw_usb_gen_fill_eeprom(struct ath_hw *ah, u16 *eep_data, |
| int eep_start_loc, int size) |
| { |
| int i = 0, j, addr; |
| u32 addrdata[8]; |
| u32 data[8]; |
| |
| for (addr = 0; addr < size; addr++) { |
| addrdata[i] = AR5416_EEPROM_OFFSET + |
| ((addr + eep_start_loc) << AR5416_EEPROM_S); |
| i++; |
| if (i == 8) { |
| REG_READ_MULTI(ah, addrdata, data, i); |
| |
| for (j = 0; j < i; j++) { |
| *eep_data = data[j]; |
| eep_data++; |
| } |
| i = 0; |
| } |
| } |
| |
| if (i != 0) { |
| REG_READ_MULTI(ah, addrdata, data, i); |
| |
| for (j = 0; j < i; j++) { |
| *eep_data = data[j]; |
| eep_data++; |
| } |
| } |
| } |
| |
| bool ath9k_hw_nvram_read(struct ath_common *common, u32 off, u16 *data) |
| { |
| return common->bus_ops->eeprom_read(common, off, data); |
| } |
| |
| void ath9k_hw_fill_vpd_table(u8 pwrMin, u8 pwrMax, u8 *pPwrList, |
| u8 *pVpdList, u16 numIntercepts, |
| u8 *pRetVpdList) |
| { |
| u16 i, k; |
| u8 currPwr = pwrMin; |
| u16 idxL = 0, idxR = 0; |
| |
| for (i = 0; i <= (pwrMax - pwrMin) / 2; i++) { |
| ath9k_hw_get_lower_upper_index(currPwr, pPwrList, |
| numIntercepts, &(idxL), |
| &(idxR)); |
| if (idxR < 1) |
| idxR = 1; |
| if (idxL == numIntercepts - 1) |
| idxL = (u16) (numIntercepts - 2); |
| if (pPwrList[idxL] == pPwrList[idxR]) |
| k = pVpdList[idxL]; |
| else |
| k = (u16)(((currPwr - pPwrList[idxL]) * pVpdList[idxR] + |
| (pPwrList[idxR] - currPwr) * pVpdList[idxL]) / |
| (pPwrList[idxR] - pPwrList[idxL])); |
| pRetVpdList[i] = (u8) k; |
| currPwr += 2; |
| } |
| } |
| |
| void ath9k_hw_get_legacy_target_powers(struct ath_hw *ah, |
| struct ath9k_channel *chan, |
| struct cal_target_power_leg *powInfo, |
| u16 numChannels, |
| struct cal_target_power_leg *pNewPower, |
| u16 numRates, bool isExtTarget) |
| { |
| struct chan_centers centers; |
| u16 clo, chi; |
| int i; |
| int matchIndex = -1, lowIndex = -1; |
| u16 freq; |
| |
| ath9k_hw_get_channel_centers(ah, chan, ¢ers); |
| freq = (isExtTarget) ? centers.ext_center : centers.ctl_center; |
| |
| if (freq <= ath9k_hw_fbin2freq(powInfo[0].bChannel, |
| IS_CHAN_2GHZ(chan))) { |
| matchIndex = 0; |
| } else { |
| for (i = 0; (i < numChannels) && |
| (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++) { |
| if (freq == ath9k_hw_fbin2freq(powInfo[i].bChannel, |
| IS_CHAN_2GHZ(chan))) { |
| matchIndex = i; |
| break; |
| } else if (freq < ath9k_hw_fbin2freq(powInfo[i].bChannel, |
| IS_CHAN_2GHZ(chan)) && i > 0 && |
| freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel, |
| IS_CHAN_2GHZ(chan))) { |
| lowIndex = i - 1; |
| break; |
| } |
| } |
| if ((matchIndex == -1) && (lowIndex == -1)) |
| matchIndex = i - 1; |
| } |
| |
| if (matchIndex != -1) { |
| *pNewPower = powInfo[matchIndex]; |
| } else { |
| clo = ath9k_hw_fbin2freq(powInfo[lowIndex].bChannel, |
| IS_CHAN_2GHZ(chan)); |
| chi = ath9k_hw_fbin2freq(powInfo[lowIndex + 1].bChannel, |
| IS_CHAN_2GHZ(chan)); |
| |
| for (i = 0; i < numRates; i++) { |
| pNewPower->tPow2x[i] = |
| (u8)ath9k_hw_interpolate(freq, clo, chi, |
| powInfo[lowIndex].tPow2x[i], |
| powInfo[lowIndex + 1].tPow2x[i]); |
| } |
| } |
| } |
| |
| void ath9k_hw_get_target_powers(struct ath_hw *ah, |
| struct ath9k_channel *chan, |
| struct cal_target_power_ht *powInfo, |
| u16 numChannels, |
| struct cal_target_power_ht *pNewPower, |
| u16 numRates, bool isHt40Target) |
| { |
| struct chan_centers centers; |
| u16 clo, chi; |
| int i; |
| int matchIndex = -1, lowIndex = -1; |
| u16 freq; |
| |
| ath9k_hw_get_channel_centers(ah, chan, ¢ers); |
| freq = isHt40Target ? centers.synth_center : centers.ctl_center; |
| |
| if (freq <= ath9k_hw_fbin2freq(powInfo[0].bChannel, IS_CHAN_2GHZ(chan))) { |
| matchIndex = 0; |
| } else { |
| for (i = 0; (i < numChannels) && |
| (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++) { |
| if (freq == ath9k_hw_fbin2freq(powInfo[i].bChannel, |
| IS_CHAN_2GHZ(chan))) { |
| matchIndex = i; |
| break; |
| } else |
| if (freq < ath9k_hw_fbin2freq(powInfo[i].bChannel, |
| IS_CHAN_2GHZ(chan)) && i > 0 && |
| freq > ath9k_hw_fbin2freq(powInfo[i - 1].bChannel, |
| IS_CHAN_2GHZ(chan))) { |
| lowIndex = i - 1; |
| break; |
| } |
| } |
| if ((matchIndex == -1) && (lowIndex == -1)) |
| matchIndex = i - 1; |
| } |
| |
| if (matchIndex != -1) { |
| *pNewPower = powInfo[matchIndex]; |
| } else { |
| clo = ath9k_hw_fbin2freq(powInfo[lowIndex].bChannel, |
| IS_CHAN_2GHZ(chan)); |
| chi = ath9k_hw_fbin2freq(powInfo[lowIndex + 1].bChannel, |
| IS_CHAN_2GHZ(chan)); |
| |
| for (i = 0; i < numRates; i++) { |
| pNewPower->tPow2x[i] = (u8)ath9k_hw_interpolate(freq, |
| clo, chi, |
| powInfo[lowIndex].tPow2x[i], |
| powInfo[lowIndex + 1].tPow2x[i]); |
| } |
| } |
| } |
| |
| u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower, |
| bool is2GHz, int num_band_edges) |
| { |
| u16 twiceMaxEdgePower = MAX_RATE_POWER; |
| int i; |
| |
| for (i = 0; (i < num_band_edges) && |
| (pRdEdgesPower[i].bChannel != AR5416_BCHAN_UNUSED); i++) { |
| if (freq == ath9k_hw_fbin2freq(pRdEdgesPower[i].bChannel, is2GHz)) { |
| twiceMaxEdgePower = CTL_EDGE_TPOWER(pRdEdgesPower[i].ctl); |
| break; |
| } else if ((i > 0) && |
| (freq < ath9k_hw_fbin2freq(pRdEdgesPower[i].bChannel, |
| is2GHz))) { |
| if (ath9k_hw_fbin2freq(pRdEdgesPower[i - 1].bChannel, |
| is2GHz) < freq && |
| CTL_EDGE_FLAGS(pRdEdgesPower[i - 1].ctl)) { |
| twiceMaxEdgePower = |
| CTL_EDGE_TPOWER(pRdEdgesPower[i - 1].ctl); |
| } |
| break; |
| } |
| } |
| |
| return twiceMaxEdgePower; |
| } |
| |
| u16 ath9k_hw_get_scaled_power(struct ath_hw *ah, u16 power_limit, |
| u8 antenna_reduction) |
| { |
| u16 reduction = antenna_reduction; |
| |
| /* |
| * Reduce scaled Power by number of chains active |
| * to get the per chain tx power level. |
| */ |
| switch (ar5416_get_ntxchains(ah->txchainmask)) { |
| case 1: |
| break; |
| case 2: |
| reduction += REDUCE_SCALED_POWER_BY_TWO_CHAIN; |
| break; |
| case 3: |
| reduction += REDUCE_SCALED_POWER_BY_THREE_CHAIN; |
| break; |
| } |
| |
| if (power_limit > reduction) |
| power_limit -= reduction; |
| else |
| power_limit = 0; |
| |
| return power_limit; |
| } |
| |
| void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah) |
| { |
| struct ath_common *common = ath9k_hw_common(ah); |
| struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); |
| |
| switch (ar5416_get_ntxchains(ah->txchainmask)) { |
| case 1: |
| break; |
| case 2: |
| regulatory->max_power_level += INCREASE_MAXPOW_BY_TWO_CHAIN; |
| break; |
| case 3: |
| regulatory->max_power_level += INCREASE_MAXPOW_BY_THREE_CHAIN; |
| break; |
| default: |
| ath_dbg(common, EEPROM, "Invalid chainmask configuration\n"); |
| break; |
| } |
| } |
| |
| void ath9k_hw_get_gain_boundaries_pdadcs(struct ath_hw *ah, |
| struct ath9k_channel *chan, |
| void *pRawDataSet, |
| u8 *bChans, u16 availPiers, |
| u16 tPdGainOverlap, |
| u16 *pPdGainBoundaries, u8 *pPDADCValues, |
| u16 numXpdGains) |
| { |
| int i, j, k; |
| int16_t ss; |
| u16 idxL = 0, idxR = 0, numPiers; |
| static u8 vpdTableL[AR5416_NUM_PD_GAINS] |
| [AR5416_MAX_PWR_RANGE_IN_HALF_DB]; |
| static u8 vpdTableR[AR5416_NUM_PD_GAINS] |
| [AR5416_MAX_PWR_RANGE_IN_HALF_DB]; |
| static u8 vpdTableI[AR5416_NUM_PD_GAINS] |
| [AR5416_MAX_PWR_RANGE_IN_HALF_DB]; |
| |
| u8 *pVpdL, *pVpdR, *pPwrL, *pPwrR; |
| u8 minPwrT4[AR5416_NUM_PD_GAINS]; |
| u8 maxPwrT4[AR5416_NUM_PD_GAINS]; |
| int16_t vpdStep; |
| int16_t tmpVal; |
| u16 sizeCurrVpdTable, maxIndex, tgtIndex; |
| bool match; |
| int16_t minDelta = 0; |
| struct chan_centers centers; |
| int pdgain_boundary_default; |
| struct cal_data_per_freq *data_def = pRawDataSet; |
| struct cal_data_per_freq_4k *data_4k = pRawDataSet; |
| struct cal_data_per_freq_ar9287 *data_9287 = pRawDataSet; |
| bool eeprom_4k = AR_SREV_9285(ah) || AR_SREV_9271(ah); |
| int intercepts; |
| |
| if (AR_SREV_9287(ah)) |
| intercepts = AR9287_PD_GAIN_ICEPTS; |
| else |
| intercepts = AR5416_PD_GAIN_ICEPTS; |
| |
| memset(&minPwrT4, 0, AR5416_NUM_PD_GAINS); |
| ath9k_hw_get_channel_centers(ah, chan, ¢ers); |
| |
| for (numPiers = 0; numPiers < availPiers; numPiers++) { |
| if (bChans[numPiers] == AR5416_BCHAN_UNUSED) |
| break; |
| } |
| |
| match = ath9k_hw_get_lower_upper_index((u8)FREQ2FBIN(centers.synth_center, |
| IS_CHAN_2GHZ(chan)), |
| bChans, numPiers, &idxL, &idxR); |
| |
| if (match) { |
| if (AR_SREV_9287(ah)) { |
| /* FIXME: array overrun? */ |
| for (i = 0; i < numXpdGains; i++) { |
| minPwrT4[i] = data_9287[idxL].pwrPdg[i][0]; |
| maxPwrT4[i] = data_9287[idxL].pwrPdg[i][4]; |
| ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i], |
| data_9287[idxL].pwrPdg[i], |
| data_9287[idxL].vpdPdg[i], |
| intercepts, |
| vpdTableI[i]); |
| } |
| } else if (eeprom_4k) { |
| for (i = 0; i < numXpdGains; i++) { |
| minPwrT4[i] = data_4k[idxL].pwrPdg[i][0]; |
| maxPwrT4[i] = data_4k[idxL].pwrPdg[i][4]; |
| ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i], |
| data_4k[idxL].pwrPdg[i], |
| data_4k[idxL].vpdPdg[i], |
| intercepts, |
| vpdTableI[i]); |
| } |
| } else { |
| for (i = 0; i < numXpdGains; i++) { |
| minPwrT4[i] = data_def[idxL].pwrPdg[i][0]; |
| maxPwrT4[i] = data_def[idxL].pwrPdg[i][4]; |
| ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i], |
| data_def[idxL].pwrPdg[i], |
| data_def[idxL].vpdPdg[i], |
| intercepts, |
| vpdTableI[i]); |
| } |
| } |
| } else { |
| for (i = 0; i < numXpdGains; i++) { |
| if (AR_SREV_9287(ah)) { |
| pVpdL = data_9287[idxL].vpdPdg[i]; |
| pPwrL = data_9287[idxL].pwrPdg[i]; |
| pVpdR = data_9287[idxR].vpdPdg[i]; |
| pPwrR = data_9287[idxR].pwrPdg[i]; |
| } else if (eeprom_4k) { |
| pVpdL = data_4k[idxL].vpdPdg[i]; |
| pPwrL = data_4k[idxL].pwrPdg[i]; |
| pVpdR = data_4k[idxR].vpdPdg[i]; |
| pPwrR = data_4k[idxR].pwrPdg[i]; |
| } else { |
| pVpdL = data_def[idxL].vpdPdg[i]; |
| pPwrL = data_def[idxL].pwrPdg[i]; |
| pVpdR = data_def[idxR].vpdPdg[i]; |
| pPwrR = data_def[idxR].pwrPdg[i]; |
| } |
| |
| minPwrT4[i] = max(pPwrL[0], pPwrR[0]); |
| |
| maxPwrT4[i] = |
| min(pPwrL[intercepts - 1], |
| pPwrR[intercepts - 1]); |
| |
| |
| ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i], |
| pPwrL, pVpdL, |
| intercepts, |
| vpdTableL[i]); |
| ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i], |
| pPwrR, pVpdR, |
| intercepts, |
| vpdTableR[i]); |
| |
| for (j = 0; j <= (maxPwrT4[i] - minPwrT4[i]) / 2; j++) { |
| vpdTableI[i][j] = |
| (u8)(ath9k_hw_interpolate((u16) |
| FREQ2FBIN(centers. |
| synth_center, |
| IS_CHAN_2GHZ |
| (chan)), |
| bChans[idxL], bChans[idxR], |
| vpdTableL[i][j], vpdTableR[i][j])); |
| } |
| } |
| } |
| |
| k = 0; |
| |
| for (i = 0; i < numXpdGains; i++) { |
| if (i == (numXpdGains - 1)) |
| pPdGainBoundaries[i] = |
| (u16)(maxPwrT4[i] / 2); |
| else |
| pPdGainBoundaries[i] = |
| (u16)((maxPwrT4[i] + minPwrT4[i + 1]) / 4); |
| |
| pPdGainBoundaries[i] = |
| min((u16)MAX_RATE_POWER, pPdGainBoundaries[i]); |
| |
| minDelta = 0; |
| |
| if (i == 0) { |
| if (AR_SREV_9280_20_OR_LATER(ah)) |
| ss = (int16_t)(0 - (minPwrT4[i] / 2)); |
| else |
| ss = 0; |
| } else { |
| ss = (int16_t)((pPdGainBoundaries[i - 1] - |
| (minPwrT4[i] / 2)) - |
| tPdGainOverlap + 1 + minDelta); |
| } |
| vpdStep = (int16_t)(vpdTableI[i][1] - vpdTableI[i][0]); |
| vpdStep = (int16_t)((vpdStep < 1) ? 1 : vpdStep); |
| |
| while ((ss < 0) && (k < (AR5416_NUM_PDADC_VALUES - 1))) { |
| tmpVal = (int16_t)(vpdTableI[i][0] + ss * vpdStep); |
| pPDADCValues[k++] = (u8)((tmpVal < 0) ? 0 : tmpVal); |
| ss++; |
| } |
| |
| sizeCurrVpdTable = (u8) ((maxPwrT4[i] - minPwrT4[i]) / 2 + 1); |
| tgtIndex = (u8)(pPdGainBoundaries[i] + tPdGainOverlap - |
| (minPwrT4[i] / 2)); |
| maxIndex = (tgtIndex < sizeCurrVpdTable) ? |
| tgtIndex : sizeCurrVpdTable; |
| |
| while ((ss < maxIndex) && (k < (AR5416_NUM_PDADC_VALUES - 1))) { |
| pPDADCValues[k++] = vpdTableI[i][ss++]; |
| } |
| |
| vpdStep = (int16_t)(vpdTableI[i][sizeCurrVpdTable - 1] - |
| vpdTableI[i][sizeCurrVpdTable - 2]); |
| vpdStep = (int16_t)((vpdStep < 1) ? 1 : vpdStep); |
| |
| if (tgtIndex >= maxIndex) { |
| while ((ss <= tgtIndex) && |
| (k < (AR5416_NUM_PDADC_VALUES - 1))) { |
| tmpVal = (int16_t)((vpdTableI[i][sizeCurrVpdTable - 1] + |
| (ss - maxIndex + 1) * vpdStep)); |
| pPDADCValues[k++] = (u8)((tmpVal > 255) ? |
| 255 : tmpVal); |
| ss++; |
| } |
| } |
| } |
| |
| if (eeprom_4k) |
| pdgain_boundary_default = 58; |
| else |
| pdgain_boundary_default = pPdGainBoundaries[i - 1]; |
| |
| while (i < AR5416_PD_GAINS_IN_MASK) { |
| pPdGainBoundaries[i] = pdgain_boundary_default; |
| i++; |
| } |
| |
| while (k < AR5416_NUM_PDADC_VALUES) { |
| pPDADCValues[k] = pPDADCValues[k - 1]; |
| k++; |
| } |
| } |
| |
| int ath9k_hw_eeprom_init(struct ath_hw *ah) |
| { |
| int status; |
| |
| if (AR_SREV_9300_20_OR_LATER(ah)) |
| ah->eep_ops = &eep_ar9300_ops; |
| else if (AR_SREV_9287(ah)) { |
| ah->eep_ops = &eep_ar9287_ops; |
| } else if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) { |
| ah->eep_ops = &eep_4k_ops; |
| } else { |
| ah->eep_ops = &eep_def_ops; |
| } |
| |
| if (!ah->eep_ops->fill_eeprom(ah)) |
| return -EIO; |
| |
| status = ah->eep_ops->check_eeprom(ah); |
| |
| return status; |
| } |