/*
 * 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 <asm/unaligned.h>
#include "hw.h"
#include "ar9002_phy.h"

#define SIZE_EEPROM_AR9287 (sizeof(struct ar9287_eeprom) / sizeof(u16))

static int ath9k_hw_ar9287_get_eeprom_ver(struct ath_hw *ah)
{
	u16 version = le16_to_cpu(ah->eeprom.map9287.baseEepHeader.version);

	return (version & AR5416_EEP_VER_MAJOR_MASK) >>
		AR5416_EEP_VER_MAJOR_SHIFT;
}

static int ath9k_hw_ar9287_get_eeprom_rev(struct ath_hw *ah)
{
	u16 version = le16_to_cpu(ah->eeprom.map9287.baseEepHeader.version);

	return version & AR5416_EEP_VER_MINOR_MASK;
}

static bool __ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
{
	struct ar9287_eeprom *eep = &ah->eeprom.map9287;
	u16 *eep_data;
	int addr, eep_start_loc = AR9287_EEP_START_LOC;
	eep_data = (u16 *)eep;

	for (addr = 0; addr < SIZE_EEPROM_AR9287; addr++) {
		if (!ath9k_hw_nvram_read(ah, addr + eep_start_loc, eep_data))
			return false;
		eep_data++;
	}

	return true;
}

static bool __ath9k_hw_usb_ar9287_fill_eeprom(struct ath_hw *ah)
{
	u16 *eep_data = (u16 *)&ah->eeprom.map9287;

	ath9k_hw_usb_gen_fill_eeprom(ah, eep_data,
				     AR9287_HTC_EEP_START_LOC,
				     SIZE_EEPROM_AR9287);
	return true;
}

static bool ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
{
	struct ath_common *common = ath9k_hw_common(ah);

	if (!ath9k_hw_use_flash(ah)) {
		ath_dbg(common, EEPROM, "Reading from EEPROM, not flash\n");
	}

	if (common->bus_ops->ath_bus_type == ATH_USB)
		return __ath9k_hw_usb_ar9287_fill_eeprom(ah);
	else
		return __ath9k_hw_ar9287_fill_eeprom(ah);
}

#if defined(CONFIG_ATH9K_DEBUGFS) || defined(CONFIG_ATH9K_HTC_DEBUGFS)
static u32 ar9287_dump_modal_eeprom(char *buf, u32 len, u32 size,
				    struct modal_eep_ar9287_header *modal_hdr)
{
	PR_EEP("Chain0 Ant. Control", le16_to_cpu(modal_hdr->antCtrlChain[0]));
	PR_EEP("Chain1 Ant. Control", le16_to_cpu(modal_hdr->antCtrlChain[1]));
	PR_EEP("Ant. Common Control", le32_to_cpu(modal_hdr->antCtrlCommon));
	PR_EEP("Chain0 Ant. Gain", modal_hdr->antennaGainCh[0]);
	PR_EEP("Chain1 Ant. Gain", modal_hdr->antennaGainCh[1]);
	PR_EEP("Switch Settle", modal_hdr->switchSettling);
	PR_EEP("Chain0 TxRxAtten", modal_hdr->txRxAttenCh[0]);
	PR_EEP("Chain1 TxRxAtten", modal_hdr->txRxAttenCh[1]);
	PR_EEP("Chain0 RxTxMargin", modal_hdr->rxTxMarginCh[0]);
	PR_EEP("Chain1 RxTxMargin", modal_hdr->rxTxMarginCh[1]);
	PR_EEP("ADC Desired size", modal_hdr->adcDesiredSize);
	PR_EEP("txEndToXpaOff", modal_hdr->txEndToXpaOff);
	PR_EEP("txEndToRxOn", modal_hdr->txEndToRxOn);
	PR_EEP("txFrameToXpaOn", modal_hdr->txFrameToXpaOn);
	PR_EEP("CCA Threshold)", modal_hdr->thresh62);
	PR_EEP("Chain0 NF Threshold", modal_hdr->noiseFloorThreshCh[0]);
	PR_EEP("Chain1 NF Threshold", modal_hdr->noiseFloorThreshCh[1]);
	PR_EEP("xpdGain", modal_hdr->xpdGain);
	PR_EEP("External PD", modal_hdr->xpd);
	PR_EEP("Chain0 I Coefficient", modal_hdr->iqCalICh[0]);
	PR_EEP("Chain1 I Coefficient", modal_hdr->iqCalICh[1]);
	PR_EEP("Chain0 Q Coefficient", modal_hdr->iqCalQCh[0]);
	PR_EEP("Chain1 Q Coefficient", modal_hdr->iqCalQCh[1]);
	PR_EEP("pdGainOverlap", modal_hdr->pdGainOverlap);
	PR_EEP("xPA Bias Level", modal_hdr->xpaBiasLvl);
	PR_EEP("txFrameToDataStart", modal_hdr->txFrameToDataStart);
	PR_EEP("txFrameToPaOn", modal_hdr->txFrameToPaOn);
	PR_EEP("HT40 Power Inc.", modal_hdr->ht40PowerIncForPdadc);
	PR_EEP("Chain0 bswAtten", modal_hdr->bswAtten[0]);
	PR_EEP("Chain1 bswAtten", modal_hdr->bswAtten[1]);
	PR_EEP("Chain0 bswMargin", modal_hdr->bswMargin[0]);
	PR_EEP("Chain1 bswMargin", modal_hdr->bswMargin[1]);
	PR_EEP("HT40 Switch Settle", modal_hdr->swSettleHt40);
	PR_EEP("AR92x7 Version", modal_hdr->version);
	PR_EEP("DriverBias1", modal_hdr->db1);
	PR_EEP("DriverBias2", modal_hdr->db1);
	PR_EEP("CCK OutputBias", modal_hdr->ob_cck);
	PR_EEP("PSK OutputBias", modal_hdr->ob_psk);
	PR_EEP("QAM OutputBias", modal_hdr->ob_qam);
	PR_EEP("PAL_OFF OutputBias", modal_hdr->ob_pal_off);

	return len;
}

static u32 ath9k_hw_ar9287_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
				       u8 *buf, u32 len, u32 size)
{
	struct ar9287_eeprom *eep = &ah->eeprom.map9287;
	struct base_eep_ar9287_header *pBase = &eep->baseEepHeader;
	u32 binBuildNumber = le32_to_cpu(pBase->binBuildNumber);

	if (!dump_base_hdr) {
		len += scnprintf(buf + len, size - len,
				 "%20s :\n", "2GHz modal Header");
		len = ar9287_dump_modal_eeprom(buf, len, size,
						&eep->modalHeader);
		goto out;
	}

	PR_EEP("Major Version", ath9k_hw_ar9287_get_eeprom_ver(ah));
	PR_EEP("Minor Version", ath9k_hw_ar9287_get_eeprom_rev(ah));
	PR_EEP("Checksum", le16_to_cpu(pBase->checksum));
	PR_EEP("Length", le16_to_cpu(pBase->length));
	PR_EEP("RegDomain1", le16_to_cpu(pBase->regDmn[0]));
	PR_EEP("RegDomain2", le16_to_cpu(pBase->regDmn[1]));
	PR_EEP("TX Mask", pBase->txMask);
	PR_EEP("RX Mask", pBase->rxMask);
	PR_EEP("Allow 5GHz", !!(pBase->opCapFlags & AR5416_OPFLAGS_11A));
	PR_EEP("Allow 2GHz", !!(pBase->opCapFlags & AR5416_OPFLAGS_11G));
	PR_EEP("Disable 2GHz HT20", !!(pBase->opCapFlags &
					AR5416_OPFLAGS_N_2G_HT20));
	PR_EEP("Disable 2GHz HT40", !!(pBase->opCapFlags &
					AR5416_OPFLAGS_N_2G_HT40));
	PR_EEP("Disable 5Ghz HT20", !!(pBase->opCapFlags &
					AR5416_OPFLAGS_N_5G_HT20));
	PR_EEP("Disable 5Ghz HT40", !!(pBase->opCapFlags &
					AR5416_OPFLAGS_N_5G_HT40));
	PR_EEP("Big Endian", !!(pBase->eepMisc & AR5416_EEPMISC_BIG_ENDIAN));
	PR_EEP("Cal Bin Major Ver", (binBuildNumber >> 24) & 0xFF);
	PR_EEP("Cal Bin Minor Ver", (binBuildNumber >> 16) & 0xFF);
	PR_EEP("Cal Bin Build", (binBuildNumber >> 8) & 0xFF);
	PR_EEP("Power Table Offset", pBase->pwrTableOffset);
	PR_EEP("OpenLoop Power Ctrl", pBase->openLoopPwrCntl);

	len += scnprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
			 pBase->macAddr);

out:
	if (len > size)
		len = size;

	return len;
}
#else
static u32 ath9k_hw_ar9287_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
				       u8 *buf, u32 len, u32 size)
{
	return 0;
}
#endif


static int ath9k_hw_ar9287_check_eeprom(struct ath_hw *ah)
{
	u32 el;
	int i, err;
	bool need_swap;
	struct ar9287_eeprom *eep = &ah->eeprom.map9287;

	err = ath9k_hw_nvram_swap_data(ah, &need_swap, SIZE_EEPROM_AR9287);
	if (err)
		return err;

	if (need_swap)
		el = swab16((__force u16)eep->baseEepHeader.length);
	else
		el = le16_to_cpu(eep->baseEepHeader.length);

	el = min(el / sizeof(u16), SIZE_EEPROM_AR9287);
	if (!ath9k_hw_nvram_validate_checksum(ah, el))
		return -EINVAL;

	if (need_swap) {
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.length);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.checksum);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.version);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.regDmn[0]);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.regDmn[1]);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.rfSilent);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.blueToothOptions);
		EEPROM_FIELD_SWAB16(eep->baseEepHeader.deviceCap);
		EEPROM_FIELD_SWAB32(eep->modalHeader.antCtrlCommon);

		for (i = 0; i < AR9287_MAX_CHAINS; i++)
			EEPROM_FIELD_SWAB32(eep->modalHeader.antCtrlChain[i]);

		for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++)
			EEPROM_FIELD_SWAB16(
				eep->modalHeader.spurChans[i].spurChan);
	}

	if (!ath9k_hw_nvram_check_version(ah, AR9287_EEP_VER,
	    AR5416_EEP_NO_BACK_VER))
		return -EINVAL;

	return 0;
}

#undef SIZE_EEPROM_AR9287

static u32 ath9k_hw_ar9287_get_eeprom(struct ath_hw *ah,
				      enum eeprom_param param)
{
	struct ar9287_eeprom *eep = &ah->eeprom.map9287;
	struct modal_eep_ar9287_header *pModal = &eep->modalHeader;
	struct base_eep_ar9287_header *pBase = &eep->baseEepHeader;
	u16 ver_minor = ath9k_hw_ar9287_get_eeprom_rev(ah);

	switch (param) {
	case EEP_NFTHRESH_2:
		return pModal->noiseFloorThreshCh[0];
	case EEP_MAC_LSW:
		return get_unaligned_be16(pBase->macAddr);
	case EEP_MAC_MID:
		return get_unaligned_be16(pBase->macAddr + 2);
	case EEP_MAC_MSW:
		return get_unaligned_be16(pBase->macAddr + 4);
	case EEP_REG_0:
		return le16_to_cpu(pBase->regDmn[0]);
	case EEP_OP_CAP:
		return le16_to_cpu(pBase->deviceCap);
	case EEP_OP_MODE:
		return pBase->opCapFlags;
	case EEP_RF_SILENT:
		return le16_to_cpu(pBase->rfSilent);
	case EEP_TX_MASK:
		return pBase->txMask;
	case EEP_RX_MASK:
		return pBase->rxMask;
	case EEP_DEV_TYPE:
		return pBase->deviceType;
	case EEP_OL_PWRCTRL:
		return pBase->openLoopPwrCntl;
	case EEP_TEMPSENSE_SLOPE:
		if (ver_minor >= AR9287_EEP_MINOR_VER_2)
			return pBase->tempSensSlope;
		else
			return 0;
	case EEP_TEMPSENSE_SLOPE_PAL_ON:
		if (ver_minor >= AR9287_EEP_MINOR_VER_3)
			return pBase->tempSensSlopePalOn;
		else
			return 0;
	case EEP_ANTENNA_GAIN_2G:
		return max_t(u8, pModal->antennaGainCh[0],
				 pModal->antennaGainCh[1]);
	default:
		return 0;
	}
}

static void ar9287_eeprom_get_tx_gain_index(struct ath_hw *ah,
			    struct ath9k_channel *chan,
			    struct cal_data_op_loop_ar9287 *pRawDatasetOpLoop,
			    u8 *pCalChans,  u16 availPiers, int8_t *pPwr)
{
	u16 idxL = 0, idxR = 0, numPiers;
	bool match;
	struct chan_centers centers;

	ath9k_hw_get_channel_centers(ah, chan, &centers);

	for (numPiers = 0; numPiers < availPiers; numPiers++) {
		if (pCalChans[numPiers] == AR5416_BCHAN_UNUSED)
			break;
	}

	match = ath9k_hw_get_lower_upper_index(
		(u8)FREQ2FBIN(centers.synth_center, IS_CHAN_2GHZ(chan)),
		pCalChans, numPiers, &idxL, &idxR);

	if (match) {
		*pPwr = (int8_t) pRawDatasetOpLoop[idxL].pwrPdg[0][0];
	} else {
		*pPwr = ((int8_t) pRawDatasetOpLoop[idxL].pwrPdg[0][0] +
			 (int8_t) pRawDatasetOpLoop[idxR].pwrPdg[0][0])/2;
	}

}

static void ar9287_eeprom_olpc_set_pdadcs(struct ath_hw *ah,
					  int32_t txPower, u16 chain)
{
	u32 tmpVal;
	u32 a;

	/* Enable OLPC for chain 0 */

	tmpVal = REG_READ(ah, 0xa270);
	tmpVal = tmpVal & 0xFCFFFFFF;
	tmpVal = tmpVal | (0x3 << 24);
	REG_WRITE(ah, 0xa270, tmpVal);

	/* Enable OLPC for chain 1 */

	tmpVal = REG_READ(ah, 0xb270);
	tmpVal = tmpVal & 0xFCFFFFFF;
	tmpVal = tmpVal | (0x3 << 24);
	REG_WRITE(ah, 0xb270, tmpVal);

	/* Write the OLPC ref power for chain 0 */

	if (chain == 0) {
		tmpVal = REG_READ(ah, 0xa398);
		tmpVal = tmpVal & 0xff00ffff;
		a = (txPower)&0xff;
		tmpVal = tmpVal | (a << 16);
		REG_WRITE(ah, 0xa398, tmpVal);
	}

	/* Write the OLPC ref power for chain 1 */

	if (chain == 1) {
		tmpVal = REG_READ(ah, 0xb398);
		tmpVal = tmpVal & 0xff00ffff;
		a = (txPower)&0xff;
		tmpVal = tmpVal | (a << 16);
		REG_WRITE(ah, 0xb398, tmpVal);
	}
}

static void ath9k_hw_set_ar9287_power_cal_table(struct ath_hw *ah,
						struct ath9k_channel *chan)
{
	struct cal_data_per_freq_ar9287 *pRawDataset;
	struct cal_data_op_loop_ar9287 *pRawDatasetOpenLoop;
	u8 *pCalBChans = NULL;
	u16 pdGainOverlap_t2;
	u8 pdadcValues[AR5416_NUM_PDADC_VALUES];
	u16 gainBoundaries[AR5416_PD_GAINS_IN_MASK];
	u16 numPiers = 0, i, j;
	u16 numXpdGain, xpdMask;
	u16 xpdGainValues[AR5416_NUM_PD_GAINS] = {0, 0, 0, 0};
	u32 reg32, regOffset, regChainOffset, regval;
	int16_t diff = 0;
	struct ar9287_eeprom *pEepData = &ah->eeprom.map9287;

	xpdMask = pEepData->modalHeader.xpdGain;

	if (ath9k_hw_ar9287_get_eeprom_rev(ah) >= AR9287_EEP_MINOR_VER_2)
		pdGainOverlap_t2 = pEepData->modalHeader.pdGainOverlap;
	else
		pdGainOverlap_t2 = (u16)(MS(REG_READ(ah, AR_PHY_TPCRG5),
					    AR_PHY_TPCRG5_PD_GAIN_OVERLAP));

	if (IS_CHAN_2GHZ(chan)) {
		pCalBChans = pEepData->calFreqPier2G;
		numPiers = AR9287_NUM_2G_CAL_PIERS;
		if (ath9k_hw_ar9287_get_eeprom(ah, EEP_OL_PWRCTRL)) {
			pRawDatasetOpenLoop =
			(struct cal_data_op_loop_ar9287 *)pEepData->calPierData2G[0];
			ah->initPDADC = pRawDatasetOpenLoop->vpdPdg[0][0];
		}
	}

	numXpdGain = 0;

	/* Calculate the value of xpdgains from the xpdGain Mask */
	for (i = 1; i <= AR5416_PD_GAINS_IN_MASK; i++) {
		if ((xpdMask >> (AR5416_PD_GAINS_IN_MASK - i)) & 1) {
			if (numXpdGain >= AR5416_NUM_PD_GAINS)
				break;
			xpdGainValues[numXpdGain] =
				(u16)(AR5416_PD_GAINS_IN_MASK-i);
			numXpdGain++;
		}
	}

	REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
		      (numXpdGain - 1) & 0x3);
	REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_GAIN_1,
		      xpdGainValues[0]);
	REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_GAIN_2,
		      xpdGainValues[1]);
	REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_GAIN_3,
		      xpdGainValues[2]);

	for (i = 0; i < AR9287_MAX_CHAINS; i++)	{
		regChainOffset = i * 0x1000;

		if (pEepData->baseEepHeader.txMask & (1 << i)) {
			pRawDatasetOpenLoop =
			(struct cal_data_op_loop_ar9287 *)pEepData->calPierData2G[i];

			if (ath9k_hw_ar9287_get_eeprom(ah, EEP_OL_PWRCTRL)) {
				int8_t txPower;
				ar9287_eeprom_get_tx_gain_index(ah, chan,
							pRawDatasetOpenLoop,
							pCalBChans, numPiers,
							&txPower);
				ar9287_eeprom_olpc_set_pdadcs(ah, txPower, i);
			} else {
				pRawDataset =
					(struct cal_data_per_freq_ar9287 *)
					pEepData->calPierData2G[i];

				ath9k_hw_get_gain_boundaries_pdadcs(ah, chan,
							   pRawDataset,
							   pCalBChans, numPiers,
							   pdGainOverlap_t2,
							   gainBoundaries,
							   pdadcValues,
							   numXpdGain);
			}

			ENABLE_REGWRITE_BUFFER(ah);

			if (i == 0) {
				if (!ath9k_hw_ar9287_get_eeprom(ah,
							EEP_OL_PWRCTRL)) {

					regval = SM(pdGainOverlap_t2,
						    AR_PHY_TPCRG5_PD_GAIN_OVERLAP)
						| SM(gainBoundaries[0],
						     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1)
						| SM(gainBoundaries[1],
						     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2)
						| SM(gainBoundaries[2],
						     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3)
						| SM(gainBoundaries[3],
						     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4);

					REG_WRITE(ah,
						  AR_PHY_TPCRG5 + regChainOffset,
						  regval);
				}
			}

			if ((int32_t)AR9287_PWR_TABLE_OFFSET_DB !=
			    pEepData->baseEepHeader.pwrTableOffset) {
				diff = (u16)(pEepData->baseEepHeader.pwrTableOffset -
					     (int32_t)AR9287_PWR_TABLE_OFFSET_DB);
				diff *= 2;

				for (j = 0; j < ((u16)AR5416_NUM_PDADC_VALUES-diff); j++)
					pdadcValues[j] = pdadcValues[j+diff];

				for (j = (u16)(AR5416_NUM_PDADC_VALUES-diff);
				     j < AR5416_NUM_PDADC_VALUES; j++)
					pdadcValues[j] =
					  pdadcValues[AR5416_NUM_PDADC_VALUES-diff];
			}

			if (!ath9k_hw_ar9287_get_eeprom(ah, EEP_OL_PWRCTRL)) {
				regOffset = AR_PHY_BASE +
					(672 << 2) + regChainOffset;

				for (j = 0; j < 32; j++) {
					reg32 = get_unaligned_le32(&pdadcValues[4 * j]);

					REG_WRITE(ah, regOffset, reg32);
					regOffset += 4;
				}
			}
			REGWRITE_BUFFER_FLUSH(ah);
		}
	}
}

static void ath9k_hw_set_ar9287_power_per_rate_table(struct ath_hw *ah,
						     struct ath9k_channel *chan,
						     int16_t *ratesArray,
						     u16 cfgCtl,
						     u16 antenna_reduction,
						     u16 powerLimit)
{
#define CMP_CTL \
	(((cfgCtl & ~CTL_MODE_M) | (pCtlMode[ctlMode] & CTL_MODE_M)) == \
	 pEepData->ctlIndex[i])

#define CMP_NO_CTL \
	(((cfgCtl & ~CTL_MODE_M) | (pCtlMode[ctlMode] & CTL_MODE_M)) == \
	 ((pEepData->ctlIndex[i] & CTL_MODE_M) | SD_NO_CTL))

	u16 twiceMaxEdgePower;
	int i;
	struct cal_ctl_data_ar9287 *rep;
	struct cal_target_power_leg targetPowerOfdm = {0, {0, 0, 0, 0} },
				    targetPowerCck = {0, {0, 0, 0, 0} };
	struct cal_target_power_leg targetPowerOfdmExt = {0, {0, 0, 0, 0} },
				    targetPowerCckExt = {0, {0, 0, 0, 0} };
	struct cal_target_power_ht targetPowerHt20,
				    targetPowerHt40 = {0, {0, 0, 0, 0} };
	u16 scaledPower = 0, minCtlPower;
	static const u16 ctlModesFor11g[] = {
		CTL_11B, CTL_11G, CTL_2GHT20,
		CTL_11B_EXT, CTL_11G_EXT, CTL_2GHT40
	};
	u16 numCtlModes = 0;
	const u16 *pCtlMode = NULL;
	u16 ctlMode, freq;
	struct chan_centers centers;
	int tx_chainmask;
	u16 twiceMinEdgePower;
	struct ar9287_eeprom *pEepData = &ah->eeprom.map9287;
	tx_chainmask = ah->txchainmask;

	ath9k_hw_get_channel_centers(ah, chan, &centers);
	scaledPower = ath9k_hw_get_scaled_power(ah, powerLimit,
						antenna_reduction);

	/*
	 * Get TX power from EEPROM.
	 */
	if (IS_CHAN_2GHZ(chan))	{
		/* CTL_11B, CTL_11G, CTL_2GHT20 */
		numCtlModes =
			ARRAY_SIZE(ctlModesFor11g) - SUB_NUM_CTL_MODES_AT_2G_40;

		pCtlMode = ctlModesFor11g;

		ath9k_hw_get_legacy_target_powers(ah, chan,
						  pEepData->calTargetPowerCck,
						  AR9287_NUM_2G_CCK_TARGET_POWERS,
						  &targetPowerCck, 4, false);
		ath9k_hw_get_legacy_target_powers(ah, chan,
						  pEepData->calTargetPower2G,
						  AR9287_NUM_2G_20_TARGET_POWERS,
						  &targetPowerOfdm, 4, false);
		ath9k_hw_get_target_powers(ah, chan,
					   pEepData->calTargetPower2GHT20,
					   AR9287_NUM_2G_20_TARGET_POWERS,
					   &targetPowerHt20, 8, false);

		if (IS_CHAN_HT40(chan))	{
			/* All 2G CTLs */
			numCtlModes = ARRAY_SIZE(ctlModesFor11g);
			ath9k_hw_get_target_powers(ah, chan,
						   pEepData->calTargetPower2GHT40,
						   AR9287_NUM_2G_40_TARGET_POWERS,
						   &targetPowerHt40, 8, true);
			ath9k_hw_get_legacy_target_powers(ah, chan,
						  pEepData->calTargetPowerCck,
						  AR9287_NUM_2G_CCK_TARGET_POWERS,
						  &targetPowerCckExt, 4, true);
			ath9k_hw_get_legacy_target_powers(ah, chan,
						  pEepData->calTargetPower2G,
						  AR9287_NUM_2G_20_TARGET_POWERS,
						  &targetPowerOfdmExt, 4, true);
		}
	}

	for (ctlMode = 0; ctlMode < numCtlModes; ctlMode++) {
		bool isHt40CtlMode =
			(pCtlMode[ctlMode] == CTL_2GHT40) ? true : false;

		if (isHt40CtlMode)
			freq = centers.synth_center;
		else if (pCtlMode[ctlMode] & EXT_ADDITIVE)
			freq = centers.ext_center;
		else
			freq = centers.ctl_center;

		twiceMaxEdgePower = MAX_RATE_POWER;
		/* Walk through the CTL indices stored in EEPROM */
		for (i = 0; (i < AR9287_NUM_CTLS) && pEepData->ctlIndex[i]; i++) {
			struct cal_ctl_edges *pRdEdgesPower;

			/*
			 * Compare test group from regulatory channel list
			 * with test mode from pCtlMode list
			 */
			if (CMP_CTL || CMP_NO_CTL) {
				rep = &(pEepData->ctlData[i]);
				pRdEdgesPower =
				rep->ctlEdges[ar5416_get_ntxchains(tx_chainmask) - 1];

				twiceMinEdgePower = ath9k_hw_get_max_edge_power(freq,
								pRdEdgesPower,
								IS_CHAN_2GHZ(chan),
								AR5416_NUM_BAND_EDGES);

				if ((cfgCtl & ~CTL_MODE_M) == SD_NO_CTL) {
					twiceMaxEdgePower = min(twiceMaxEdgePower,
								twiceMinEdgePower);
				} else {
					twiceMaxEdgePower = twiceMinEdgePower;
					break;
				}
			}
		}

		minCtlPower = (u8)min(twiceMaxEdgePower, scaledPower);

		/* Apply ctl mode to correct target power set */
		switch (pCtlMode[ctlMode]) {
		case CTL_11B:
			for (i = 0; i < ARRAY_SIZE(targetPowerCck.tPow2x); i++) {
				targetPowerCck.tPow2x[i] =
					(u8)min((u16)targetPowerCck.tPow2x[i],
						minCtlPower);
			}
			break;
		case CTL_11A:
		case CTL_11G:
			for (i = 0; i < ARRAY_SIZE(targetPowerOfdm.tPow2x); i++) {
				targetPowerOfdm.tPow2x[i] =
					(u8)min((u16)targetPowerOfdm.tPow2x[i],
						minCtlPower);
			}
			break;
		case CTL_5GHT20:
		case CTL_2GHT20:
			for (i = 0; i < ARRAY_SIZE(targetPowerHt20.tPow2x); i++) {
				targetPowerHt20.tPow2x[i] =
					(u8)min((u16)targetPowerHt20.tPow2x[i],
						minCtlPower);
			}
			break;
		case CTL_11B_EXT:
			targetPowerCckExt.tPow2x[0] =
				(u8)min((u16)targetPowerCckExt.tPow2x[0],
					minCtlPower);
			break;
		case CTL_11A_EXT:
		case CTL_11G_EXT:
			targetPowerOfdmExt.tPow2x[0] =
				(u8)min((u16)targetPowerOfdmExt.tPow2x[0],
					minCtlPower);
			break;
		case CTL_5GHT40:
		case CTL_2GHT40:
			for (i = 0; i < ARRAY_SIZE(targetPowerHt40.tPow2x); i++) {
				targetPowerHt40.tPow2x[i] =
					(u8)min((u16)targetPowerHt40.tPow2x[i],
						minCtlPower);
			}
			break;
		default:
			break;
		}
	}

	/* Now set the rates array */

	ratesArray[rate6mb] =
	ratesArray[rate9mb] =
	ratesArray[rate12mb] =
	ratesArray[rate18mb] =
	ratesArray[rate24mb] = targetPowerOfdm.tPow2x[0];

	ratesArray[rate36mb] = targetPowerOfdm.tPow2x[1];
	ratesArray[rate48mb] = targetPowerOfdm.tPow2x[2];
	ratesArray[rate54mb] = targetPowerOfdm.tPow2x[3];
	ratesArray[rateXr] = targetPowerOfdm.tPow2x[0];

	for (i = 0; i < ARRAY_SIZE(targetPowerHt20.tPow2x); i++)
		ratesArray[rateHt20_0 + i] = targetPowerHt20.tPow2x[i];

	if (IS_CHAN_2GHZ(chan))	{
		ratesArray[rate1l] = targetPowerCck.tPow2x[0];
		ratesArray[rate2s] =
		ratesArray[rate2l] = targetPowerCck.tPow2x[1];
		ratesArray[rate5_5s] =
		ratesArray[rate5_5l] = targetPowerCck.tPow2x[2];
		ratesArray[rate11s] =
		ratesArray[rate11l] = targetPowerCck.tPow2x[3];
	}
	if (IS_CHAN_HT40(chan))	{
		for (i = 0; i < ARRAY_SIZE(targetPowerHt40.tPow2x); i++)
			ratesArray[rateHt40_0 + i] = targetPowerHt40.tPow2x[i];

		ratesArray[rateDupOfdm] = targetPowerHt40.tPow2x[0];
		ratesArray[rateDupCck]  = targetPowerHt40.tPow2x[0];
		ratesArray[rateExtOfdm] = targetPowerOfdmExt.tPow2x[0];

		if (IS_CHAN_2GHZ(chan))
			ratesArray[rateExtCck] = targetPowerCckExt.tPow2x[0];
	}

#undef CMP_CTL
#undef CMP_NO_CTL
}

static void ath9k_hw_ar9287_set_txpower(struct ath_hw *ah,
					struct ath9k_channel *chan, u16 cfgCtl,
					u8 twiceAntennaReduction,
					u8 powerLimit, bool test)
{
	struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
	struct ar9287_eeprom *pEepData = &ah->eeprom.map9287;
	struct modal_eep_ar9287_header *pModal = &pEepData->modalHeader;
	int16_t ratesArray[Ar5416RateSize];
	u8 ht40PowerIncForPdadc = 2;
	int i;

	memset(ratesArray, 0, sizeof(ratesArray));

	if (ath9k_hw_ar9287_get_eeprom_rev(ah) >= AR9287_EEP_MINOR_VER_2)
		ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;

	ath9k_hw_set_ar9287_power_per_rate_table(ah, chan,
						 &ratesArray[0], cfgCtl,
						 twiceAntennaReduction,
						 powerLimit);

	ath9k_hw_set_ar9287_power_cal_table(ah, chan);

	regulatory->max_power_level = 0;
	for (i = 0; i < ARRAY_SIZE(ratesArray); i++) {
		if (ratesArray[i] > MAX_RATE_POWER)
			ratesArray[i] = MAX_RATE_POWER;

		if (ratesArray[i] > regulatory->max_power_level)
			regulatory->max_power_level = ratesArray[i];
	}

	ath9k_hw_update_regulatory_maxpower(ah);

	if (test)
		return;

	for (i = 0; i < Ar5416RateSize; i++)
		ratesArray[i] -= AR9287_PWR_TABLE_OFFSET_DB * 2;

	ENABLE_REGWRITE_BUFFER(ah);

	/* OFDM power per rate */
	REG_WRITE(ah, AR_PHY_POWER_TX_RATE1,
		  ATH9K_POW_SM(ratesArray[rate18mb], 24)
		  | ATH9K_POW_SM(ratesArray[rate12mb], 16)
		  | ATH9K_POW_SM(ratesArray[rate9mb], 8)
		  | ATH9K_POW_SM(ratesArray[rate6mb], 0));

	REG_WRITE(ah, AR_PHY_POWER_TX_RATE2,
		  ATH9K_POW_SM(ratesArray[rate54mb], 24)
		  | ATH9K_POW_SM(ratesArray[rate48mb], 16)
		  | ATH9K_POW_SM(ratesArray[rate36mb], 8)
		  | ATH9K_POW_SM(ratesArray[rate24mb], 0));

	/* CCK power per rate */
	if (IS_CHAN_2GHZ(chan))	{
		REG_WRITE(ah, AR_PHY_POWER_TX_RATE3,
			  ATH9K_POW_SM(ratesArray[rate2s], 24)
			  | ATH9K_POW_SM(ratesArray[rate2l], 16)
			  | ATH9K_POW_SM(ratesArray[rateXr], 8)
			  | ATH9K_POW_SM(ratesArray[rate1l], 0));
		REG_WRITE(ah, AR_PHY_POWER_TX_RATE4,
			  ATH9K_POW_SM(ratesArray[rate11s], 24)
			  | ATH9K_POW_SM(ratesArray[rate11l], 16)
			  | ATH9K_POW_SM(ratesArray[rate5_5s], 8)
			  | ATH9K_POW_SM(ratesArray[rate5_5l], 0));
	}

	/* HT20 power per rate */
	REG_WRITE(ah, AR_PHY_POWER_TX_RATE5,
		  ATH9K_POW_SM(ratesArray[rateHt20_3], 24)
		  | ATH9K_POW_SM(ratesArray[rateHt20_2], 16)
		  | ATH9K_POW_SM(ratesArray[rateHt20_1], 8)
		  | ATH9K_POW_SM(ratesArray[rateHt20_0], 0));

	REG_WRITE(ah, AR_PHY_POWER_TX_RATE6,
		  ATH9K_POW_SM(ratesArray[rateHt20_7], 24)
		  | ATH9K_POW_SM(ratesArray[rateHt20_6], 16)
		  | ATH9K_POW_SM(ratesArray[rateHt20_5], 8)
		  | ATH9K_POW_SM(ratesArray[rateHt20_4], 0));

	/* HT40 power per rate */
	if (IS_CHAN_HT40(chan))	{
		if (ath9k_hw_ar9287_get_eeprom(ah, EEP_OL_PWRCTRL)) {
			REG_WRITE(ah, AR_PHY_POWER_TX_RATE7,
				  ATH9K_POW_SM(ratesArray[rateHt40_3], 24)
				  | ATH9K_POW_SM(ratesArray[rateHt40_2], 16)
				  | ATH9K_POW_SM(ratesArray[rateHt40_1], 8)
				  | ATH9K_POW_SM(ratesArray[rateHt40_0], 0));

			REG_WRITE(ah, AR_PHY_POWER_TX_RATE8,
				  ATH9K_POW_SM(ratesArray[rateHt40_7], 24)
				  | ATH9K_POW_SM(ratesArray[rateHt40_6], 16)
				  | ATH9K_POW_SM(ratesArray[rateHt40_5], 8)
				  | ATH9K_POW_SM(ratesArray[rateHt40_4], 0));
		} else {
			REG_WRITE(ah, AR_PHY_POWER_TX_RATE7,
				  ATH9K_POW_SM(ratesArray[rateHt40_3] +
					       ht40PowerIncForPdadc, 24)
				  | ATH9K_POW_SM(ratesArray[rateHt40_2] +
						 ht40PowerIncForPdadc, 16)
				  | ATH9K_POW_SM(ratesArray[rateHt40_1] +
						 ht40PowerIncForPdadc, 8)
				  | ATH9K_POW_SM(ratesArray[rateHt40_0] +
						 ht40PowerIncForPdadc, 0));

			REG_WRITE(ah, AR_PHY_POWER_TX_RATE8,
				  ATH9K_POW_SM(ratesArray[rateHt40_7] +
					       ht40PowerIncForPdadc, 24)
				  | ATH9K_POW_SM(ratesArray[rateHt40_6] +
						 ht40PowerIncForPdadc, 16)
				  | ATH9K_POW_SM(ratesArray[rateHt40_5] +
						 ht40PowerIncForPdadc, 8)
				  | ATH9K_POW_SM(ratesArray[rateHt40_4] +
						 ht40PowerIncForPdadc, 0));
		}

		/* Dup/Ext power per rate */
		REG_WRITE(ah, AR_PHY_POWER_TX_RATE9,
			  ATH9K_POW_SM(ratesArray[rateExtOfdm], 24)
			  | ATH9K_POW_SM(ratesArray[rateExtCck], 16)
			  | ATH9K_POW_SM(ratesArray[rateDupOfdm], 8)
			  | ATH9K_POW_SM(ratesArray[rateDupCck], 0));
	}

	/* TPC initializations */
	if (ah->tpc_enabled) {
		int ht40_delta;

		ht40_delta = (IS_CHAN_HT40(chan)) ? ht40PowerIncForPdadc : 0;
		ar5008_hw_init_rate_txpower(ah, ratesArray, chan, ht40_delta);
		/* Enable TPC */
		REG_WRITE(ah, AR_PHY_POWER_TX_RATE_MAX,
			MAX_RATE_POWER | AR_PHY_POWER_TX_RATE_MAX_TPC_ENABLE);
	} else {
		/* Disable TPC */
		REG_WRITE(ah, AR_PHY_POWER_TX_RATE_MAX, MAX_RATE_POWER);
	}

	REGWRITE_BUFFER_FLUSH(ah);
}

static void ath9k_hw_ar9287_set_board_values(struct ath_hw *ah,
					     struct ath9k_channel *chan)
{
	struct ar9287_eeprom *eep = &ah->eeprom.map9287;
	struct modal_eep_ar9287_header *pModal = &eep->modalHeader;
	u32 regChainOffset, regval;
	u8 txRxAttenLocal;
	int i;

	pModal = &eep->modalHeader;

	REG_WRITE(ah, AR_PHY_SWITCH_COM, le32_to_cpu(pModal->antCtrlCommon));

	for (i = 0; i < AR9287_MAX_CHAINS; i++)	{
		regChainOffset = i * 0x1000;

		REG_WRITE(ah, AR_PHY_SWITCH_CHAIN_0 + regChainOffset,
			  le32_to_cpu(pModal->antCtrlChain[i]));

		REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0) + regChainOffset,
			  (REG_READ(ah, AR_PHY_TIMING_CTRL4(0) + regChainOffset)
			   & ~(AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF |
			       AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF)) |
			  SM(pModal->iqCalICh[i],
			     AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF) |
			  SM(pModal->iqCalQCh[i],
			     AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF));

		txRxAttenLocal = pModal->txRxAttenCh[i];

		REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
			      AR_PHY_GAIN_2GHZ_XATTEN1_MARGIN,
			      pModal->bswMargin[i]);
		REG_RMW_FIELD(ah, AR_PHY_GAIN_2GHZ + regChainOffset,
			      AR_PHY_GAIN_2GHZ_XATTEN1_DB,
			      pModal->bswAtten[i]);
		REG_RMW_FIELD(ah, AR_PHY_RXGAIN + regChainOffset,
			      AR9280_PHY_RXGAIN_TXRX_ATTEN,
			      txRxAttenLocal);
		REG_RMW_FIELD(ah, AR_PHY_RXGAIN + regChainOffset,
			      AR9280_PHY_RXGAIN_TXRX_MARGIN,
			      pModal->rxTxMarginCh[i]);
	}


	if (IS_CHAN_HT40(chan))
		REG_RMW_FIELD(ah, AR_PHY_SETTLING,
			      AR_PHY_SETTLING_SWITCH, pModal->swSettleHt40);
	else
		REG_RMW_FIELD(ah, AR_PHY_SETTLING,
			      AR_PHY_SETTLING_SWITCH, pModal->switchSettling);

	REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ,
		      AR_PHY_DESIRED_SZ_ADC, pModal->adcDesiredSize);

	REG_WRITE(ah, AR_PHY_RF_CTL4,
		  SM(pModal->txEndToXpaOff, AR_PHY_RF_CTL4_TX_END_XPAA_OFF)
		  | SM(pModal->txEndToXpaOff, AR_PHY_RF_CTL4_TX_END_XPAB_OFF)
		  | SM(pModal->txFrameToXpaOn, AR_PHY_RF_CTL4_FRAME_XPAA_ON)
		  | SM(pModal->txFrameToXpaOn, AR_PHY_RF_CTL4_FRAME_XPAB_ON));

	REG_RMW_FIELD(ah, AR_PHY_RF_CTL3,
		      AR_PHY_TX_END_TO_A2_RX_ON, pModal->txEndToRxOn);

	REG_RMW_FIELD(ah, AR_PHY_CCA,
		      AR9280_PHY_CCA_THRESH62, pModal->thresh62);
	REG_RMW_FIELD(ah, AR_PHY_EXT_CCA0,
		      AR_PHY_EXT_CCA0_THRESH62, pModal->thresh62);

	regval = REG_READ(ah, AR9287_AN_RF2G3_CH0);
	regval &= ~(AR9287_AN_RF2G3_DB1 |
		    AR9287_AN_RF2G3_DB2 |
		    AR9287_AN_RF2G3_OB_CCK |
		    AR9287_AN_RF2G3_OB_PSK |
		    AR9287_AN_RF2G3_OB_QAM |
		    AR9287_AN_RF2G3_OB_PAL_OFF);
	regval |= (SM(pModal->db1, AR9287_AN_RF2G3_DB1) |
		   SM(pModal->db2, AR9287_AN_RF2G3_DB2) |
		   SM(pModal->ob_cck, AR9287_AN_RF2G3_OB_CCK) |
		   SM(pModal->ob_psk, AR9287_AN_RF2G3_OB_PSK) |
		   SM(pModal->ob_qam, AR9287_AN_RF2G3_OB_QAM) |
		   SM(pModal->ob_pal_off, AR9287_AN_RF2G3_OB_PAL_OFF));

	ath9k_hw_analog_shift_regwrite(ah, AR9287_AN_RF2G3_CH0, regval);

	regval = REG_READ(ah, AR9287_AN_RF2G3_CH1);
	regval &= ~(AR9287_AN_RF2G3_DB1 |
		    AR9287_AN_RF2G3_DB2 |
		    AR9287_AN_RF2G3_OB_CCK |
		    AR9287_AN_RF2G3_OB_PSK |
		    AR9287_AN_RF2G3_OB_QAM |
		    AR9287_AN_RF2G3_OB_PAL_OFF);
	regval |= (SM(pModal->db1, AR9287_AN_RF2G3_DB1) |
		   SM(pModal->db2, AR9287_AN_RF2G3_DB2) |
		   SM(pModal->ob_cck, AR9287_AN_RF2G3_OB_CCK) |
		   SM(pModal->ob_psk, AR9287_AN_RF2G3_OB_PSK) |
		   SM(pModal->ob_qam, AR9287_AN_RF2G3_OB_QAM) |
		   SM(pModal->ob_pal_off, AR9287_AN_RF2G3_OB_PAL_OFF));

	ath9k_hw_analog_shift_regwrite(ah, AR9287_AN_RF2G3_CH1, regval);

	REG_RMW_FIELD(ah, AR_PHY_RF_CTL2,
		      AR_PHY_TX_END_DATA_START, pModal->txFrameToDataStart);
	REG_RMW_FIELD(ah, AR_PHY_RF_CTL2,
		      AR_PHY_TX_END_PA_ON, pModal->txFrameToPaOn);

	ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TOP2,
				  AR9287_AN_TOP2_XPABIAS_LVL,
				  AR9287_AN_TOP2_XPABIAS_LVL_S,
				  pModal->xpaBiasLvl);
}

static u16 ath9k_hw_ar9287_get_spur_channel(struct ath_hw *ah,
					    u16 i, bool is2GHz)
{
	__le16 spur_ch = ah->eeprom.map9287.modalHeader.spurChans[i].spurChan;

	return le16_to_cpu(spur_ch);
}

static u8 ath9k_hw_ar9287_get_eepmisc(struct ath_hw *ah)
{
	return ah->eeprom.map9287.baseEepHeader.eepMisc;
}

const struct eeprom_ops eep_ar9287_ops = {
	.check_eeprom		= ath9k_hw_ar9287_check_eeprom,
	.get_eeprom		= ath9k_hw_ar9287_get_eeprom,
	.fill_eeprom		= ath9k_hw_ar9287_fill_eeprom,
	.dump_eeprom		= ath9k_hw_ar9287_dump_eeprom,
	.get_eeprom_ver		= ath9k_hw_ar9287_get_eeprom_ver,
	.get_eeprom_rev		= ath9k_hw_ar9287_get_eeprom_rev,
	.set_board_values	= ath9k_hw_ar9287_set_board_values,
	.set_txpower		= ath9k_hw_ar9287_set_txpower,
	.get_spur_channel	= ath9k_hw_ar9287_get_spur_channel,
	.get_eepmisc		= ath9k_hw_ar9287_get_eepmisc
};