text: /*-
   * SPDX-License-Identifier: ISC
   *
   * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   * Copyright (c) 2002-2008 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.
   *
   * $FreeBSD: releng/12.0/sys/dev/ath/ath_hal/ar5212/ar2317.c 326695 2017-12-08 15:57:29Z pfg $
   */
  #include "opt_ah.h"
  
  #include "ah.h"
  #include "ah_internal.h"
  
  #include "ar5212/ar5212.h"
  #include "ar5212/ar5212reg.h"
  #include "ar5212/ar5212phy.h"
  
  #include "ah_eeprom_v3.h"
  
  #define AH_5212_2317
  #include "ar5212/ar5212.ini"
  
  #define	N(a)	(sizeof(a)/sizeof(a[0]))
  
  typedef	RAW_DATA_STRUCT_2413 RAW_DATA_STRUCT_2317;
  typedef RAW_DATA_PER_CHANNEL_2413 RAW_DATA_PER_CHANNEL_2317;
  #define PWR_TABLE_SIZE_2317 PWR_TABLE_SIZE_2413
  
  struct ar2317State {
  	RF_HAL_FUNCS	base;		/* public state, must be first */
  	uint16_t	pcdacTable[PWR_TABLE_SIZE_2317];
  
  	uint32_t	Bank1Data[N(ar5212Bank1_2317)];
  	uint32_t	Bank2Data[N(ar5212Bank2_2317)];
  	uint32_t	Bank3Data[N(ar5212Bank3_2317)];
  	uint32_t	Bank6Data[N(ar5212Bank6_2317)];
  	uint32_t	Bank7Data[N(ar5212Bank7_2317)];
  
  	/*
  	 * Private state for reduced stack usage.
  	 */
  	/* filled out Vpd table for all pdGains (chanL) */
  	uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  			    [MAX_PWR_RANGE_IN_HALF_DB];
  	/* filled out Vpd table for all pdGains (chanR) */
  	uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  			    [MAX_PWR_RANGE_IN_HALF_DB];
  	/* filled out Vpd table for all pdGains (interpolated) */
  	uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  			    [MAX_PWR_RANGE_IN_HALF_DB];
  };
  #define	AR2317(ah)	((struct ar2317State *) AH5212(ah)->ah_rfHal)
  
  extern	void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  		uint32_t numBits, uint32_t firstBit, uint32_t column);
  
  static void
  ar2317WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  	int writes)
  {
  	HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2317, modesIndex, writes);
  	HAL_INI_WRITE_ARRAY(ah, ar5212Common_2317, 1, writes);
  	HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2317, freqIndex, writes);
  }
  
  /*
   * Take the MHz channel value and set the Channel value
   *
   * ASSUMES: Writes enabled to analog bus
   */
  static HAL_BOOL
  ar2317SetChannel(struct ath_hal *ah,  const struct ieee80211_channel *chan)
  {
  	uint16_t freq = ath_hal_gethwchannel(ah, chan);
  	uint32_t channelSel  = 0;
  	uint32_t bModeSynth  = 0;
  	uint32_t aModeRefSel = 0;
  	uint32_t reg32       = 0;
  
  	OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  
  	if (freq < 4800) {
  		uint32_t txctl;
  		channelSel = freq - 2272 ;
  		channelSel = ath_hal_reverseBits(channelSel, 8);
  
  		txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
  		if (freq == 2484) {
  			/* Enable channel spreading for channel 14 */
  			OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
  				txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
  		} else {
  			OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
  				txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
  		}
  	} else if ((freq % 20) == 0 && freq >= 5120) {
  		channelSel = ath_hal_reverseBits(
  			((freq - 4800) / 20 << 2), 8);
  		aModeRefSel = ath_hal_reverseBits(3, 2);
  	} else if ((freq % 10) == 0) {
  		channelSel = ath_hal_reverseBits(
  			((freq - 4800) / 10 << 1), 8);
  		aModeRefSel = ath_hal_reverseBits(2, 2);
  	} else if ((freq % 5) == 0) {
  		channelSel = ath_hal_reverseBits(
  			(freq - 4800) / 5, 8);
  		aModeRefSel = ath_hal_reverseBits(1, 2);
  	} else {
  		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
  		    __func__, freq);
  		return AH_FALSE;
  	}
  
  	reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
  			(1 << 12) | 0x1;
  	OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
  
  	reg32 >>= 8;
  	OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
  
  	AH_PRIVATE(ah)->ah_curchan = chan;
  	return AH_TRUE;
  }
  
  /*
   * Reads EEPROM header info from device structure and programs
   * all rf registers
   *
   * REQUIRES: Access to the analog rf device
   */
  static HAL_BOOL
  ar2317SetRfRegs(struct ath_hal *ah,
  	const struct ieee80211_channel *chan,
  	uint16_t modesIndex, uint16_t *rfXpdGain)
  {
  #define	RF_BANK_SETUP(_priv, _ix, _col) do {				    \
  	int i;								    \
  	for (i = 0; i < N(ar5212Bank##_ix##_2317); i++)			    \
  		(_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2317[i][_col];\
  } while (0)
  	struct ath_hal_5212 *ahp = AH5212(ah);
  	const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
  	uint16_t ob2GHz = 0, db2GHz = 0;
  	struct ar2317State *priv = AR2317(ah);
  	int regWrites = 0;
  
  	HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
  	    __func__, chan->ic_freq, chan->ic_flags, modesIndex);
  
  	HALASSERT(priv);
  
  	/* Setup rf parameters */
  	if (IEEE80211_IS_CHAN_B(chan)) {
  		ob2GHz = ee->ee_obFor24;
  		db2GHz = ee->ee_dbFor24;
  	} else {
  		ob2GHz = ee->ee_obFor24g;
  		db2GHz = ee->ee_dbFor24g;
  	}
  
  	/* Bank 1 Write */
  	RF_BANK_SETUP(priv, 1, 1);
  
  	/* Bank 2 Write */
  	RF_BANK_SETUP(priv, 2, modesIndex);
  
  	/* Bank 3 Write */
  	RF_BANK_SETUP(priv, 3, modesIndex);
  
  	/* Bank 6 Write */
  	RF_BANK_SETUP(priv, 6, modesIndex);
  
  	ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 193, 0);
  	ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 190, 0);
  
  	/* Bank 7 Setup */
  	RF_BANK_SETUP(priv, 7, modesIndex);
  
  	/* Write Analog registers */
  	HAL_INI_WRITE_BANK(ah, ar5212Bank1_2317, priv->Bank1Data, regWrites);
  	HAL_INI_WRITE_BANK(ah, ar5212Bank2_2317, priv->Bank2Data, regWrites);
  	HAL_INI_WRITE_BANK(ah, ar5212Bank3_2317, priv->Bank3Data, regWrites);
  	HAL_INI_WRITE_BANK(ah, ar5212Bank6_2317, priv->Bank6Data, regWrites);
  	HAL_INI_WRITE_BANK(ah, ar5212Bank7_2317, priv->Bank7Data, regWrites);	
  	/* Now that we have reprogrammed rfgain value, clear the flag. */
  	ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
  
  	return AH_TRUE;
  #undef	RF_BANK_SETUP
  }
  
  /*
   * Return a reference to the requested RF Bank.
   */
  static uint32_t *
  ar2317GetRfBank(struct ath_hal *ah, int bank)
  {
  	struct ar2317State *priv = AR2317(ah);
  
  	HALASSERT(priv != AH_NULL);
  	switch (bank) {
  	case 1: return priv->Bank1Data;
  	case 2: return priv->Bank2Data;
  	case 3: return priv->Bank3Data;
  	case 6: return priv->Bank6Data;
  	case 7: return priv->Bank7Data;
  	}
  	HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
  	    __func__, bank);
  	return AH_NULL;
  }
  
  /*
   * Return indices surrounding the value in sorted integer lists.
   *
   * NB: the input list is assumed to be sorted in ascending order
   */
  static void
  GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
                            uint32_t *vlo, uint32_t *vhi)
  {
  	int16_t target = v;
  	const int16_t *ep = lp+listSize;
  	const int16_t *tp;
  
  	/*
  	 * Check first and last elements for out-of-bounds conditions.
  	 */
  	if (target < lp[0]) {
  		*vlo = *vhi = 0;
  		return;
  	}
  	if (target >= ep[-1]) {
  		*vlo = *vhi = listSize - 1;
  		return;
  	}
  
  	/* look for value being near or between 2 values in list */
  	for (tp = lp; tp < ep; tp++) {
  		/*
  		 * If value is close to the current value of the list
  		 * then target is not between values, it is one of the values
  		 */
  		if (*tp == target) {
  			*vlo = *vhi = tp - (const int16_t *) lp;
  			return;
  		}
  		/*
  		 * Look for value being between current value and next value
  		 * if so return these 2 values
  		 */
  		if (target < tp[1]) {
  			*vlo = tp - (const int16_t *) lp;
  			*vhi = *vlo + 1;
  			return;
  		}
  	}
  }
  
  /*
   * Fill the Vpdlist for indices Pmax-Pmin
   */
  static HAL_BOOL
  ar2317FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
  		   const int16_t *pwrList, const int16_t *VpdList,
  		   uint16_t numIntercepts, uint16_t retVpdList[][64])
  {
  	uint16_t ii, jj, kk;
  	int16_t currPwr = (int16_t)(2*Pmin);
  	/* since Pmin is pwr*2 and pwrList is 4*pwr */
  	uint32_t  idxL, idxR;
  
  	ii = 0;
  	jj = 0;
  
  	if (numIntercepts < 2)
  		return AH_FALSE;
  
  	while (ii <= (uint16_t)(Pmax - Pmin)) {
  		GetLowerUpperIndex(currPwr, pwrList, numIntercepts, 
  					 &(idxL), &(idxR));
  		if (idxR < 1)
  			idxR = 1;			/* extrapolate below */
  		if (idxL == (uint32_t)(numIntercepts - 1))
  			idxL = numIntercepts - 2;	/* extrapolate above */
  		if (pwrList[idxL] == pwrList[idxR])
  			kk = VpdList[idxL];
  		else
  			kk = (uint16_t)
  				(((currPwr - pwrList[idxL])*VpdList[idxR]+ 
  				  (pwrList[idxR] - currPwr)*VpdList[idxL])/
  				 (pwrList[idxR] - pwrList[idxL]));
  		retVpdList[pdGainIdx][ii] = kk;
  		ii++;
  		currPwr += 2;				/* half dB steps */
  	}
  
  	return AH_TRUE;
  }
  
  /*
   * Returns interpolated or the scaled up interpolated value
   */
  static int16_t
  interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
  	int16_t targetLeft, int16_t targetRight)
  {
  	int16_t rv;
  
  	if (srcRight != srcLeft) {
  		rv = ((target - srcLeft)*targetRight +
  		      (srcRight - target)*targetLeft) / (srcRight - srcLeft);
  	} else {
  		rv = targetLeft;
  	}
  	return rv;
  }
  
  /*
   * Uses the data points read from EEPROM to reconstruct the pdadc power table
   * Called by ar2317SetPowerTable()
   */
  static int 
  ar2317getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
  		const RAW_DATA_STRUCT_2317 *pRawDataset,
  		uint16_t pdGainOverlap_t2, 
  		int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[], 
  		uint16_t pPdGainValues[], uint16_t pPDADCValues[]) 
  {
  	struct ar2317State *priv = AR2317(ah);
  #define	VpdTable_L	priv->vpdTable_L
  #define	VpdTable_R	priv->vpdTable_R
  #define	VpdTable_I	priv->vpdTable_I
  	/* XXX excessive stack usage? */
  	uint32_t ii, jj, kk;
  	int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
  	uint32_t idxL, idxR;
  	uint32_t numPdGainsUsed = 0;
  	/* 
  	 * If desired to support -ve power levels in future, just
  	 * change pwr_I_0 to signed 5-bits.
  	 */
  	int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
  	/* to accommodate -ve power levels later on. */
  	int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
  	/* to accommodate -ve power levels later on */
  	uint16_t numVpd = 0;
  	uint16_t Vpd_step;
  	int16_t tmpVal ; 
  	uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
  
  	/* Get upper lower index */
  	GetLowerUpperIndex(channel, pRawDataset->pChannels,
  				 pRawDataset->numChannels, &(idxL), &(idxR));
  
  	for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
  		jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
  		/* work backwards 'cause highest pdGain for lowest power */
  		numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
  		if (numVpd > 0) {
  			pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
  			Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
  			if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
  				Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
  			}
  			Pmin_t2[numPdGainsUsed] = (int16_t)
  				(Pmin_t2[numPdGainsUsed] / 2);
  			Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
  			if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
  				Pmax_t2[numPdGainsUsed] = 
  					pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
  			Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
  			ar2317FillVpdTable(
  					   numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed], 
  					   &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]), 
  					   &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
  					   );
  			ar2317FillVpdTable(
  					   numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed], 
  					   &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
  					   &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
  					   );
  			for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
  				VpdTable_I[numPdGainsUsed][kk] = 
  					interpolate_signed(
  							   channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
  							   (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
  			}
  			/* fill VpdTable_I for this pdGain */
  			numPdGainsUsed++;
  		}
  		/* if this pdGain is used */
  	}
  
  	*pMinCalPower = Pmin_t2[0];
  	kk = 0; /* index for the final table */
  	for (ii = 0; ii < numPdGainsUsed; ii++) {
  		if (ii == (numPdGainsUsed - 1))
  			pPdGainBoundaries[ii] = Pmax_t2[ii] +
  				PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
  		else 
  			pPdGainBoundaries[ii] = (uint16_t)
  				((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
  		if (pPdGainBoundaries[ii] > 63) {
  			HALDEBUG(ah, HAL_DEBUG_ANY,
  			    "%s: clamp pPdGainBoundaries[%d] %d\n",
  			   __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
  			pPdGainBoundaries[ii] = 63;
  		}
  
  		/* Find starting index for this pdGain */
  		if (ii == 0) 
  			ss = 0; /* for the first pdGain, start from index 0 */
  		else 
  			ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) - 
  				pdGainOverlap_t2;
  		Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
  		Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
  		/*
  		 *-ve ss indicates need to extrapolate data below for this pdGain
  		 */
  		while (ss < 0) {
  			tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
  			pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
  			ss++;
  		}
  
  		sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
  		tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
  		maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
  
  		while (ss < (int16_t)maxIndex)
  			pPDADCValues[kk++] = VpdTable_I[ii][ss++];
  
  		Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
  				       VpdTable_I[ii][sizeCurrVpdTable-2]);
  		Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);           
  		/*
  		 * for last gain, pdGainBoundary == Pmax_t2, so will 
  		 * have to extrapolate
  		 */
  		if (tgtIndex > maxIndex) {	/* need to extrapolate above */
  			while(ss < (int16_t)tgtIndex) {
  				tmpVal = (uint16_t)
  					(VpdTable_I[ii][sizeCurrVpdTable-1] + 
  					 (ss-maxIndex)*Vpd_step);
  				pPDADCValues[kk++] = (tmpVal > 127) ? 
  					127 : tmpVal;
  				ss++;
  			}
  		}				/* extrapolated above */
  	}					/* for all pdGainUsed */
  
  	while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
  		pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
  		ii++;
  	}
  	while (kk < 128) {
  		pPDADCValues[kk] = pPDADCValues[kk-1];
  		kk++;
  	}
  
  	return numPdGainsUsed;
  #undef VpdTable_L
  #undef VpdTable_R
  #undef VpdTable_I
  }
  
  static HAL_BOOL
  ar2317SetPowerTable(struct ath_hal *ah,
  	int16_t *minPower, int16_t *maxPower,
  	const struct ieee80211_channel *chan, 
  	uint16_t *rfXpdGain)
  {
  	struct ath_hal_5212 *ahp = AH5212(ah);
  	const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
  	const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
  	uint16_t pdGainOverlap_t2;
  	int16_t minCalPower2317_t2;
  	uint16_t *pdadcValues = ahp->ah_pcdacTable;
  	uint16_t gainBoundaries[4];
  	uint32_t reg32, regoffset;
  	int i, numPdGainsUsed;
  #ifndef AH_USE_INIPDGAIN
  	uint32_t tpcrg1;
  #endif
  
  	HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
  	    __func__, chan->ic_freq, chan->ic_flags);
  
  	if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
  		pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
  	else if (IEEE80211_IS_CHAN_B(chan))
  		pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
  	else {
  		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
  		return AH_FALSE;
  	}
  
  	pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
  					  AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
      
  	numPdGainsUsed = ar2317getGainBoundariesAndPdadcsForPowers(ah,
  		chan->channel, pRawDataset, pdGainOverlap_t2,
  		&minCalPower2317_t2,gainBoundaries, rfXpdGain, pdadcValues);
  	HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
  
  #ifdef AH_USE_INIPDGAIN
  	/*
  	 * Use pd_gains curve from eeprom; Atheros always uses
  	 * the default curve from the ini file but some vendors
  	 * (e.g. Zcomax) want to override this curve and not
  	 * honoring their settings results in tx power 5dBm low.
  	 */
  	OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN, 
  			 (pRawDataset->pDataPerChannel[0].numPdGains - 1));
  #else
  	tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
  	tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
  		  | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
  	switch (numPdGainsUsed) {
  	case 3:
  		tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
  		tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
  		/* fall thru... */
  	case 2:
  		tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
  		tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
  		/* fall thru... */
  	case 1:
  		tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
  		tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
  		break;
  	}
  #ifdef AH_DEBUG
  	if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
  		HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
  		    "pd_gains (default 0x%x, calculated 0x%x)\n",
  		    __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
  #endif
  	OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
  #endif
  
  	/*
  	 * Note the pdadc table may not start at 0 dBm power, could be
  	 * negative or greater than 0.  Need to offset the power
  	 * values by the amount of minPower for griffin
  	 */
  	if (minCalPower2317_t2 != 0)
  		ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2317_t2);
  	else
  		ahp->ah_txPowerIndexOffset = 0;
  
  	/* Finally, write the power values into the baseband power table */
  	regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
  	for (i = 0; i < 32; i++) {
  		reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  | 
  			((pdadcValues[4*i + 1] & 0xFF) << 8)  |
  			((pdadcValues[4*i + 2] & 0xFF) << 16) |
  			((pdadcValues[4*i + 3] & 0xFF) << 24) ;        
  		OS_REG_WRITE(ah, regoffset, reg32);
  		regoffset += 4;
  	}
  
  	OS_REG_WRITE(ah, AR_PHY_TPCRG5, 
  		     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));
  
  	return AH_TRUE;
  }
  
  static int16_t
  ar2317GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
  {
  	uint32_t ii,jj;
  	uint16_t Pmin=0,numVpd;
  
  	for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
  		jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
  		/* work backwards 'cause highest pdGain for lowest power */
  		numVpd = data->pDataPerPDGain[jj].numVpd;
  		if (numVpd > 0) {
  			Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
  			return(Pmin);
  		}
  	}
  	return(Pmin);
  }
  
  static int16_t
  ar2317GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
  {
  	uint32_t ii;
  	uint16_t Pmax=0,numVpd;
  	uint16_t vpdmax;
  	
  	for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
  		/* work forwards cuase lowest pdGain for highest power */
  		numVpd = data->pDataPerPDGain[ii].numVpd;
  		if (numVpd > 0) {
  			Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
  			vpdmax = data->pDataPerPDGain[ii].Vpd[numVpd-1];
  			return(Pmax);
  		}
  	}
  	return(Pmax);
  }
  
  static HAL_BOOL
  ar2317GetChannelMaxMinPower(struct ath_hal *ah,
  	const struct ieee80211_channel *chan,
  	int16_t *maxPow, int16_t *minPow)
  {
  	uint16_t freq = chan->ic_freq;		/* NB: never mapped */
  	const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
  	const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
  	const RAW_DATA_PER_CHANNEL_2317 *data=AH_NULL;
  	uint16_t numChannels;
  	int totalD,totalF, totalMin,last, i;
  
  	*maxPow = 0;
  
  	if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
  		pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
  	else if (IEEE80211_IS_CHAN_B(chan))
  		pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
  	else
  		return(AH_FALSE);
  
  	numChannels = pRawDataset->numChannels;
  	data = pRawDataset->pDataPerChannel;
  	
  	/* Make sure the channel is in the range of the TP values 
  	 *  (freq piers)
  	 */
  	if (numChannels < 1)
  		return(AH_FALSE);
  
  	if ((freq < data[0].channelValue) ||
  	    (freq > data[numChannels-1].channelValue)) {
  		if (freq < data[0].channelValue) {
  			*maxPow = ar2317GetMaxPower(ah, &data[0]);
  			*minPow = ar2317GetMinPower(ah, &data[0]);
  			return(AH_TRUE);
  		} else {
  			*maxPow = ar2317GetMaxPower(ah, &data[numChannels - 1]);
  			*minPow = ar2317GetMinPower(ah, &data[numChannels - 1]);
  			return(AH_TRUE);
  		}
  	}
  
  	/* Linearly interpolate the power value now */
  	for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
  	     last = i++);
  	totalD = data[i].channelValue - data[last].channelValue;
  	if (totalD > 0) {
  		totalF = ar2317GetMaxPower(ah, &data[i]) - ar2317GetMaxPower(ah, &data[last]);
  		*maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) + 
  				     ar2317GetMaxPower(ah, &data[last])*totalD)/totalD);
  		totalMin = ar2317GetMinPower(ah, &data[i]) - ar2317GetMinPower(ah, &data[last]);
  		*minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
  				     ar2317GetMinPower(ah, &data[last])*totalD)/totalD);
  		return(AH_TRUE);
  	} else {
  		if (freq == data[i].channelValue) {
  			*maxPow = ar2317GetMaxPower(ah, &data[i]);
  			*minPow = ar2317GetMinPower(ah, &data[i]);
  			return(AH_TRUE);
  		} else
  			return(AH_FALSE);
  	}
  }
  
  /*
   * Free memory for analog bank scratch buffers
   */
  static void
  ar2317RfDetach(struct ath_hal *ah)
  {
  	struct ath_hal_5212 *ahp = AH5212(ah);
  
  	HALASSERT(ahp->ah_rfHal != AH_NULL);
  	ath_hal_free(ahp->ah_rfHal);
  	ahp->ah_rfHal = AH_NULL;
  }
  
  /*
   * Allocate memory for analog bank scratch buffers
   * Scratch Buffer will be reinitialized every reset so no need to zero now
   */
  static HAL_BOOL
  ar2317RfAttach(struct ath_hal *ah, HAL_STATUS *status)
  {
  	struct ath_hal_5212 *ahp = AH5212(ah);
  	struct ar2317State *priv;
  
  	HALASSERT(ah->ah_magic == AR5212_MAGIC);
  
  	HALASSERT(ahp->ah_rfHal == AH_NULL);
  	priv = ath_hal_malloc(sizeof(struct ar2317State));
  	if (priv == AH_NULL) {
  		HALDEBUG(ah, HAL_DEBUG_ANY,
  		    "%s: cannot allocate private state\n", __func__);
  		*status = HAL_ENOMEM;		/* XXX */
  		return AH_FALSE;
  	}
  	priv->base.rfDetach		= ar2317RfDetach;
  	priv->base.writeRegs		= ar2317WriteRegs;
  	priv->base.getRfBank		= ar2317GetRfBank;
  	priv->base.setChannel		= ar2317SetChannel;
  	priv->base.setRfRegs		= ar2317SetRfRegs;
  	priv->base.setPowerTable	= ar2317SetPowerTable;
  	priv->base.getChannelMaxMinPower = ar2317GetChannelMaxMinPower;
  	priv->base.getNfAdjust		= ar5212GetNfAdjust;
  
  	ahp->ah_pcdacTable = priv->pcdacTable;
  	ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
  	ahp->ah_rfHal = &priv->base;
  
  	return AH_TRUE;
  }
  
  static HAL_BOOL
  ar2317Probe(struct ath_hal *ah)
  {
  	return IS_2317(ah);
  }
  AH_RF(RF2317, ar2317Probe, ar2317RfAttach);
  