sys/dev/netif/ath/hal/ath_hal/ar5212/ar2425.c

   1 /*
   2  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
   3  * Copyright (c) 2002-2008 Atheros Communications, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  *
  17  * $Id: ar2425.c,v 1.8 2008/11/16 21:33:05 sam Exp $
  18  */
  19 #include "opt_ah.h"
  20
  21 #include "ah.h"
  22 #include "ah_internal.h"
  23
  24 #include "ar5212/ar5212.h"
  25 #include "ar5212/ar5212reg.h"
  26 #include "ar5212/ar5212phy.h"
  27
  28 #include "ah_eeprom_v3.h"
  29
  30 #define AH_5212_2425
  31 #define AH_5212_2417
  32 #include "ar5212/ar5212.ini"
  33
  34 #define N(a)    (sizeof(a)/sizeof(a[0]))
  35
  36 struct ar2425State {
  37         RF_HAL_FUNCS    base;           /* public state, must be first */
  38         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  39
  40         uint32_t        Bank1Data[N(ar5212Bank1_2425)];
  41         uint32_t        Bank2Data[N(ar5212Bank2_2425)];
  42         uint32_t        Bank3Data[N(ar5212Bank3_2425)];
  43         uint32_t        Bank6Data[N(ar5212Bank6_2425)]; /* 2417 is same size */
  44         uint32_t        Bank7Data[N(ar5212Bank7_2425)];
  45 };
  46 #define AR2425(ah)      ((struct ar2425State *) AH5212(ah)->ah_rfHal)
  47
  48 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  49                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  50
  51 static void
  52 ar2425WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  53         int writes)
  54 {
  55         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2425, modesIndex, writes);
  56         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2425, 1, writes);
  57         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2425, freqIndex, writes);
  58 #if 0
  59         /*
  60          * for SWAN similar to Condor
  61          * Bit 0 enables link to go to L1 when MAC goes to sleep.
  62          * Bit 3 enables the loop back the link down to reset.
  63          */
  64         if (IS_PCIE(ah) && ath_hal_pcieL1SKPEnable) {
  65                 OS_REG_WRITE(ah, AR_PCIE_PMC,
  66                     AR_PCIE_PMC_ENA_L1 | AR_PCIE_PMC_ENA_RESET);
  67         }
  68         /*
  69          * for Standby issue in Swan/Condor.
  70          * Bit 9 (MAC_WOW_PWR_STATE_MASK_D2)to be set to avoid skips
  71          *      before last Training Sequence 2 (TS2)
  72          * Bit 8 (MAC_WOW_PWR_STATE_MASK_D1)to be unset to assert
  73          *      Power Reset along with PCI Reset
  74          */
  75         OS_REG_SET_BIT(ah, AR_PCIE_PMC, MAC_WOW_PWR_STATE_MASK_D2);
  76 #endif
  77 }
  78
  79 /*
  80  * Take the MHz channel value and set the Channel value
  81  *
  82  * ASSUMES: Writes enabled to analog bus
  83  */
  84 static HAL_BOOL
  85 ar2425SetChannel(struct ath_hal *ah,  HAL_CHANNEL_INTERNAL *chan)
  86 {
  87         uint32_t channelSel  = 0;
  88         uint32_t bModeSynth  = 0;
  89         uint32_t aModeRefSel = 0;
  90         uint32_t reg32       = 0;
  91         uint16_t freq;
  92
  93         OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
  94
  95         if (chan->channel < 4800) {
  96                 uint32_t txctl;
  97
  98         channelSel = chan->channel - 2272;
  99         channelSel = ath_hal_reverseBits(channelSel, 8);
 100
 101                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 102         if (chan->channel == 2484) {
 103                         // Enable channel spreading for channel 14
 104                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 105                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 106                 } else {
 107                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 108                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 109                 }
 110
 111         } else if (((chan->channel % 5) == 2) && (chan->channel <= 5435)) {
 112                 freq = chan->channel - 2; /* Align to even 5MHz raster */
 113                 channelSel = ath_hal_reverseBits(
 114                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 115                 aModeRefSel = ath_hal_reverseBits(0, 2);
 116         } else if ((chan->channel % 20) == 0 && chan->channel >= 5120) {
 117                 channelSel = ath_hal_reverseBits(
 118                         ((chan->channel - 4800) / 20 << 2), 8);
 119                 aModeRefSel = ath_hal_reverseBits(1, 2);
 120         } else if ((chan->channel % 10) == 0) {
 121                 channelSel = ath_hal_reverseBits(
 122                         ((chan->channel - 4800) / 10 << 1), 8);
 123                 aModeRefSel = ath_hal_reverseBits(1, 2);
 124         } else if ((chan->channel % 5) == 0) {
 125                 channelSel = ath_hal_reverseBits(
 126                         (chan->channel - 4800) / 5, 8);
 127                 aModeRefSel = ath_hal_reverseBits(1, 2);
 128         } else {
 129                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 130                     __func__, chan->channel);
 131                 return AH_FALSE;
 132         }
 133
 134         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 135                         (1 << 12) | 0x1;
 136         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 137
 138         reg32 >>= 8;
 139         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 140
 141         AH_PRIVATE(ah)->ah_curchan = chan;
 142         return AH_TRUE;
 143 }
 144
 145 /*
 146  * Reads EEPROM header info from device structure and programs
 147  * all rf registers
 148  *
 149  * REQUIRES: Access to the analog rf device
 150  */
 151 static HAL_BOOL
 152 ar2425SetRfRegs(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan, uint16_t modesIndex, uint16_t *rfXpdGain)
 153 {
 154 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 155         int i;                                                              \
 156         for (i = 0; i < N(ar5212Bank##_ix##_2425); i++)                     \
 157                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2425[i][_col];\
 158 } while (0)
 159         struct ath_hal_5212 *ahp = AH5212(ah);
 160         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 161         struct ar2425State *priv = AR2425(ah);
 162         uint16_t ob2GHz = 0, db2GHz = 0;
 163         int regWrites = 0;
 164
 165         HALDEBUG(ah, HAL_DEBUG_RFPARAM,
 166             "==>%s:chan 0x%x flag 0x%x modesIndex 0x%x\n",
 167             __func__, chan->channel, chan->channelFlags, modesIndex);
 168
 169         HALASSERT(priv);
 170
 171         /* Setup rf parameters */
 172         switch (chan->channelFlags & CHANNEL_ALL) {
 173         case CHANNEL_B:
 174                 ob2GHz = ee->ee_obFor24;
 175                 db2GHz = ee->ee_dbFor24;
 176                 break;
 177         case CHANNEL_G:
 178         case CHANNEL_108G:
 179                 ob2GHz = ee->ee_obFor24g;
 180                 db2GHz = ee->ee_dbFor24g;
 181                 break;
 182         default:
 183                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n",
 184                         __func__, chan->channelFlags);
 185                 return AH_FALSE;
 186         }
 187
 188         /* Bank 1 Write */
 189         RF_BANK_SETUP(priv, 1, 1);
 190
 191         /* Bank 2 Write */
 192         RF_BANK_SETUP(priv, 2, modesIndex);
 193
 194         /* Bank 3 Write */
 195         RF_BANK_SETUP(priv, 3, modesIndex);
 196
 197         /* Bank 6 Write */
 198         RF_BANK_SETUP(priv, 6, modesIndex);
 199
 200         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz, 3, 193, 0);
 201         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz, 3, 190, 0);
 202
 203         /* Bank 7 Setup */
 204         RF_BANK_SETUP(priv, 7, modesIndex);
 205
 206         /* Write Analog registers */
 207         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2425, priv->Bank1Data, regWrites);
 208         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2425, priv->Bank2Data, regWrites);
 209         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2425, priv->Bank3Data, regWrites);
 210         if (IS_2417(ah)) {
 211                 HALASSERT(N(ar5212Bank6_2425) == N(ar5212Bank6_2417));
 212                 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2417, priv->Bank6Data,
 213                     regWrites);
 214         } else
 215                 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2425, priv->Bank6Data,
 216                     regWrites);
 217         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2425, priv->Bank7Data, regWrites);
 218
 219         /* Now that we have reprogrammed rfgain value, clear the flag. */
 220         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 221
 222         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "<==%s\n", __func__);
 223         return AH_TRUE;
 224 #undef  RF_BANK_SETUP
 225 }
 226
 227 /*
 228  * Return a reference to the requested RF Bank.
 229  */
 230 static uint32_t *
 231 ar2425GetRfBank(struct ath_hal *ah, int bank)
 232 {
 233         struct ar2425State *priv = AR2425(ah);
 234
 235         HALASSERT(priv != AH_NULL);
 236         switch (bank) {
 237         case 1: return priv->Bank1Data;
 238         case 2: return priv->Bank2Data;
 239         case 3: return priv->Bank3Data;
 240         case 6: return priv->Bank6Data;
 241         case 7: return priv->Bank7Data;
 242         }
 243         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 244             __func__, bank);
 245         return AH_NULL;
 246 }
 247
 248 /*
 249  * Return indices surrounding the value in sorted integer lists.
 250  *
 251  * NB: the input list is assumed to be sorted in ascending order
 252  */
 253 static void
 254 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 255                           uint32_t *vlo, uint32_t *vhi)
 256 {
 257         int16_t target = v;
 258         const uint16_t *ep = lp+listSize;
 259         const uint16_t *tp;
 260
 261         /*
 262          * Check first and last elements for out-of-bounds conditions.
 263          */
 264         if (target < lp[0]) {
 265                 *vlo = *vhi = 0;
 266                 return;
 267         }
 268         if (target >= ep[-1]) {
 269                 *vlo = *vhi = listSize - 1;
 270                 return;
 271         }
 272
 273         /* look for value being near or between 2 values in list */
 274         for (tp = lp; tp < ep; tp++) {
 275                 /*
 276                  * If value is close to the current value of the list
 277                  * then target is not between values, it is one of the values
 278                  */
 279                 if (*tp == target) {
 280                         *vlo = *vhi = tp - (const uint16_t *) lp;
 281                         return;
 282                 }
 283                 /*
 284                  * Look for value being between current value and next value
 285                  * if so return these 2 values
 286                  */
 287                 if (target < tp[1]) {
 288                         *vlo = tp - (const uint16_t *) lp;
 289                         *vhi = *vlo + 1;
 290                         return;
 291                 }
 292         }
 293 }
 294
 295 /*
 296  * Fill the Vpdlist for indices Pmax-Pmin
 297  */
 298 static HAL_BOOL
 299 ar2425FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 300                    const int16_t *pwrList, const uint16_t *VpdList,
 301                    uint16_t numIntercepts,
 302                    uint16_t retVpdList[][64])
 303 {
 304         uint16_t ii, jj, kk;
 305         int16_t currPwr = (int16_t)(2*Pmin);
 306         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 307         uint32_t  idxL, idxR;
 308
 309         ii = 0;
 310         jj = 0;
 311
 312         if (numIntercepts < 2)
 313                 return AH_FALSE;
 314
 315         while (ii <= (uint16_t)(Pmax - Pmin)) {
 316                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 317                                    numIntercepts, &(idxL), &(idxR));
 318                 if (idxR < 1)
 319                         idxR = 1;                       /* extrapolate below */
 320                 if (idxL == (uint32_t)(numIntercepts - 1))
 321                         idxL = numIntercepts - 2;       /* extrapolate above */
 322                 if (pwrList[idxL] == pwrList[idxR])
 323                         kk = VpdList[idxL];
 324                 else
 325                         kk = (uint16_t)
 326                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 327                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 328                                  (pwrList[idxR] - pwrList[idxL]));
 329                 retVpdList[pdGainIdx][ii] = kk;
 330                 ii++;
 331                 currPwr += 2;                           /* half dB steps */
 332         }
 333
 334         return AH_TRUE;
 335 }
 336
 337 /*
 338  * Returns interpolated or the scaled up interpolated value
 339  */
 340 static int16_t
 341 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 342         int16_t targetLeft, int16_t targetRight)
 343 {
 344         int16_t rv;
 345
 346         if (srcRight != srcLeft) {
 347                 rv = ((target - srcLeft)*targetRight +
 348                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 349         } else {
 350                 rv = targetLeft;
 351         }
 352         return rv;
 353 }
 354
 355 /*
 356  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 357  * Called by ar2425SetPowerTable()
 358  */
 359 static void
 360 ar2425getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 361                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 362                 uint16_t pdGainOverlap_t2,
 363                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 364                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 365 {
 366     /* Note the items statically allocated below are to reduce stack usage */
 367         uint32_t ii, jj, kk;
 368         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 369         uint32_t idxL, idxR;
 370         uint32_t numPdGainsUsed = 0;
 371         static uint16_t VpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 372         /* filled out Vpd table for all pdGains (chanL) */
 373         static uint16_t VpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 374         /* filled out Vpd table for all pdGains (chanR) */
 375         static uint16_t VpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 376         /* filled out Vpd table for all pdGains (interpolated) */
 377         /*
 378          * If desired to support -ve power levels in future, just
 379          * change pwr_I_0 to signed 5-bits.
 380          */
 381         static int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 382         /* to accomodate -ve power levels later on. */
 383         static int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 384         /* to accomodate -ve power levels later on */
 385         uint16_t numVpd = 0;
 386         uint16_t Vpd_step;
 387         int16_t tmpVal ;
 388         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 389
 390         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "==>%s:\n", __func__);
 391
 392         /* Get upper lower index */
 393         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 394                                  pRawDataset->numChannels, &(idxL), &(idxR));
 395
 396         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 397                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 398                 /* work backwards 'cause highest pdGain for lowest power */
 399                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 400                 if (numVpd > 0) {
 401                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 402                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 403                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 404                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 405                         }
 406                         Pmin_t2[numPdGainsUsed] = (int16_t)
 407                                 (Pmin_t2[numPdGainsUsed] / 2);
 408                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 409                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 410                                 Pmax_t2[numPdGainsUsed] =
 411                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 412                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 413                         ar2425FillVpdTable(
 414                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 415                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 416                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 417                                            );
 418                         ar2425FillVpdTable(
 419                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 420                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 421                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 422                                            );
 423                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 424                                 VpdTable_I[numPdGainsUsed][kk] =
 425                                         interpolate_signed(
 426                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 427                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 428                         }
 429                         /* fill VpdTable_I for this pdGain */
 430                         numPdGainsUsed++;
 431                 }
 432                 /* if this pdGain is used */
 433         }
 434
 435         *pMinCalPower = Pmin_t2[0];
 436         kk = 0; /* index for the final table */
 437         for (ii = 0; ii < numPdGainsUsed; ii++) {
 438                 if (ii == (numPdGainsUsed - 1))
 439                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 440                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 441                 else
 442                         pPdGainBoundaries[ii] = (uint16_t)
 443                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 444
 445                 /* Find starting index for this pdGain */
 446                 if (ii == 0)
 447                         ss = 0; /* for the first pdGain, start from index 0 */
 448                 else
 449                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 450                                 pdGainOverlap_t2;
 451                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 452                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 453                 /*
 454                  *-ve ss indicates need to extrapolate data below for this pdGain
 455                  */
 456                 while (ss < 0) {
 457                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 458                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 459                         ss++;
 460                 }
 461
 462                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 463                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 464                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 465
 466                 while (ss < (int16_t)maxIndex)
 467                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 468
 469                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 470                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 471                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 472                 /*
 473                  * for last gain, pdGainBoundary == Pmax_t2, so will
 474                  * have to extrapolate
 475                  */
 476                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 477                         while(ss < (int16_t)tgtIndex) {
 478                                 tmpVal = (uint16_t)
 479                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 480                                          (ss-maxIndex)*Vpd_step);
 481                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 482                                         127 : tmpVal;
 483                                 ss++;
 484                         }
 485                 }                               /* extrapolated above */
 486         }                                       /* for all pdGainUsed */
 487
 488         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 489                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 490                 ii++;
 491         }
 492         while (kk < 128) {
 493                 pPDADCValues[kk] = pPDADCValues[kk-1];
 494                 kk++;
 495         }
 496
 497         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "<==%s\n", __func__);
 498 }
 499
 500
 501 /* Same as 2413 set power table */
 502 static HAL_BOOL
 503 ar2425SetPowerTable(struct ath_hal *ah,
 504         int16_t *minPower, int16_t *maxPower, HAL_CHANNEL_INTERNAL *chan,
 505         uint16_t *rfXpdGain)
 506 {
 507         struct ath_hal_5212 *ahp = AH5212(ah);
 508         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 509         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 510         uint16_t pdGainOverlap_t2;
 511         int16_t minCalPower2413_t2;
 512         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 513         uint16_t gainBoundaries[4];
 514         uint32_t i, reg32, regoffset;
 515
 516         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s:chan 0x%x flag 0x%x\n",
 517             __func__, chan->channel,chan->channelFlags);
 518
 519         if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
 520                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 521         else if (IS_CHAN_B(chan))
 522                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 523         else {
 524                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s:illegal mode\n", __func__);
 525                 return AH_FALSE;
 526         }
 527
 528         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 529                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 530
 531         ar2425getGainBoundariesAndPdadcsForPowers(ah, chan->channel,
 532                 pRawDataset, pdGainOverlap_t2,&minCalPower2413_t2,gainBoundaries,
 533                 rfXpdGain, pdadcValues);
 534
 535         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 536                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 537
 538         /*
 539          * Note the pdadc table may not start at 0 dBm power, could be
 540          * negative or greater than 0.  Need to offset the power
 541          * values by the amount of minPower for griffin
 542          */
 543         if (minCalPower2413_t2 != 0)
 544                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2);
 545         else
 546                 ahp->ah_txPowerIndexOffset = 0;
 547
 548         /* Finally, write the power values into the baseband power table */
 549         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 550         for (i = 0; i < 32; i++) {
 551                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 552                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 553                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 554                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 555                 OS_REG_WRITE(ah, regoffset, reg32);
 556                 regoffset += 4;
 557         }
 558
 559         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 560                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 561                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 562                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 563                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 564                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 565
 566         return AH_TRUE;
 567 }
 568
 569 static int16_t
 570 ar2425GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 571 {
 572         uint32_t ii,jj;
 573         uint16_t Pmin=0,numVpd;
 574
 575         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 576                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 577                 /* work backwards 'cause highest pdGain for lowest power */
 578                 numVpd = data->pDataPerPDGain[jj].numVpd;
 579                 if (numVpd > 0) {
 580                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 581                         return(Pmin);
 582                 }
 583         }
 584         return(Pmin);
 585 }
 586
 587 static int16_t
 588 ar2425GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 589 {
 590         uint32_t ii;
 591         uint16_t Pmax=0,numVpd;
 592
 593         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 594                 /* work forwards cuase lowest pdGain for highest power */
 595                 numVpd = data->pDataPerPDGain[ii].numVpd;
 596                 if (numVpd > 0) {
 597                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 598                         return(Pmax);
 599                 }
 600         }
 601         return(Pmax);
 602 }
 603
 604 static
 605 HAL_BOOL
 606 ar2425GetChannelMaxMinPower(struct ath_hal *ah, HAL_CHANNEL *chan,
 607                                      int16_t *maxPow, int16_t *minPow)
 608 {
 609         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 610         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 611         const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL;
 612         uint16_t numChannels;
 613         int totalD,totalF, totalMin,last, i;
 614
 615         *maxPow = 0;
 616
 617         if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
 618                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 619         else if (IS_CHAN_B(chan))
 620                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 621         else
 622                 return(AH_FALSE);
 623
 624         numChannels = pRawDataset->numChannels;
 625         data = pRawDataset->pDataPerChannel;
 626
 627         /* Make sure the channel is in the range of the TP values
 628          *  (freq piers)
 629          */
 630         if (numChannels < 1)
 631                 return(AH_FALSE);
 632
 633         if ((chan->channel < data[0].channelValue) ||
 634             (chan->channel > data[numChannels-1].channelValue)) {
 635                 if (chan->channel < data[0].channelValue) {
 636                         *maxPow = ar2425GetMaxPower(ah, &data[0]);
 637                         *minPow = ar2425GetMinPower(ah, &data[0]);
 638                         return(AH_TRUE);
 639                 } else {
 640                         *maxPow = ar2425GetMaxPower(ah, &data[numChannels - 1]);
 641                         *minPow = ar2425GetMinPower(ah, &data[numChannels - 1]);
 642                         return(AH_TRUE);
 643                 }
 644         }
 645
 646         /* Linearly interpolate the power value now */
 647         for (last=0,i=0; (i<numChannels) && (chan->channel > data[i].channelValue);
 648              last = i++);
 649         totalD = data[i].channelValue - data[last].channelValue;
 650         if (totalD > 0) {
 651                 totalF = ar2425GetMaxPower(ah, &data[i]) - ar2425GetMaxPower(ah, &data[last]);
 652                 *maxPow = (int8_t) ((totalF*(chan->channel-data[last].channelValue) +
 653                                      ar2425GetMaxPower(ah, &data[last])*totalD)/totalD);
 654                 totalMin = ar2425GetMinPower(ah, &data[i]) - ar2425GetMinPower(ah, &data[last]);
 655                 *minPow = (int8_t) ((totalMin*(chan->channel-data[last].channelValue) +
 656                                      ar2425GetMinPower(ah, &data[last])*totalD)/totalD);
 657                 return(AH_TRUE);
 658         } else {
 659                 if (chan->channel == data[i].channelValue) {
 660                         *maxPow = ar2425GetMaxPower(ah, &data[i]);
 661                         *minPow = ar2425GetMinPower(ah, &data[i]);
 662                         return(AH_TRUE);
 663                 } else
 664                         return(AH_FALSE);
 665         }
 666 }
 667
 668 /*
 669  * Free memory for analog bank scratch buffers
 670  */
 671 static void
 672 ar2425RfDetach(struct ath_hal *ah)
 673 {
 674         struct ath_hal_5212 *ahp = AH5212(ah);
 675
 676         HALASSERT(ahp->ah_rfHal != AH_NULL);
 677         ath_hal_free(ahp->ah_rfHal);
 678         ahp->ah_rfHal = AH_NULL;
 679 }
 680
 681 /*
 682  * Allocate memory for analog bank scratch buffers
 683  * Scratch Buffer will be reinitialized every reset so no need to zero now
 684  */
 685 static HAL_BOOL
 686 ar2425RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 687 {
 688         struct ath_hal_5212 *ahp = AH5212(ah);
 689         struct ar2425State *priv;
 690
 691         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 692
 693         HALASSERT(ahp->ah_rfHal == AH_NULL);
 694         priv = ath_hal_malloc(sizeof(struct ar2425State));
 695         if (priv == AH_NULL) {
 696                 HALDEBUG(ah, HAL_DEBUG_ANY,
 697                     "%s: cannot allocate private state\n", __func__);
 698                 *status = HAL_ENOMEM;           /* XXX */
 699                 return AH_FALSE;
 700         }
 701         priv->base.rfDetach             = ar2425RfDetach;
 702         priv->base.writeRegs            = ar2425WriteRegs;
 703         priv->base.getRfBank            = ar2425GetRfBank;
 704         priv->base.setChannel           = ar2425SetChannel;
 705         priv->base.setRfRegs            = ar2425SetRfRegs;
 706         priv->base.setPowerTable        = ar2425SetPowerTable;
 707         priv->base.getChannelMaxMinPower = ar2425GetChannelMaxMinPower;
 708         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 709
 710         ahp->ah_pcdacTable = priv->pcdacTable;
 711         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 712         ahp->ah_rfHal = &priv->base;
 713
 714         return AH_TRUE;
 715 }
 716
 717 static HAL_BOOL
 718 ar2425Probe(struct ath_hal *ah)
 719 {
 720         return IS_2425(ah) || IS_2417(ah);
 721 }
 722 AH_RF(RF2425, ar2425Probe, ar2425RfAttach);