sys/dev/ath/ath_hal/ar5212/ar2316.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: ar2316.c,v 1.9 2008/11/15 22:15:46 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_2316
  31 #include "ar5212/ar5212.ini"
  32
  33 #define N(a)    (sizeof(a)/sizeof(a[0]))
  34
  35 typedef RAW_DATA_STRUCT_2413 RAW_DATA_STRUCT_2316;
  36 typedef RAW_DATA_PER_CHANNEL_2413 RAW_DATA_PER_CHANNEL_2316;
  37 #define PWR_TABLE_SIZE_2316 PWR_TABLE_SIZE_2413
  38
  39 struct ar2316State {
  40         RF_HAL_FUNCS    base;           /* public state, must be first */
  41         uint16_t        pcdacTable[PWR_TABLE_SIZE_2316];
  42
  43         uint32_t        Bank1Data[N(ar5212Bank1_2316)];
  44         uint32_t        Bank2Data[N(ar5212Bank2_2316)];
  45         uint32_t        Bank3Data[N(ar5212Bank3_2316)];
  46         uint32_t        Bank6Data[N(ar5212Bank6_2316)];
  47         uint32_t        Bank7Data[N(ar5212Bank7_2316)];
  48
  49         /*
  50          * Private state for reduced stack usage.
  51          */
  52         /* filled out Vpd table for all pdGains (chanL) */
  53         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  54                             [MAX_PWR_RANGE_IN_HALF_DB];
  55         /* filled out Vpd table for all pdGains (chanR) */
  56         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  57                             [MAX_PWR_RANGE_IN_HALF_DB];
  58         /* filled out Vpd table for all pdGains (interpolated) */
  59         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  60                             [MAX_PWR_RANGE_IN_HALF_DB];
  61 };
  62 #define AR2316(ah)      ((struct ar2316State *) AH5212(ah)->ah_rfHal)
  63
  64 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  65                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  66
  67 static void
  68 ar2316WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  69         int regWrites)
  70 {
  71         struct ath_hal_5212 *ahp = AH5212(ah);
  72
  73         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2316, modesIndex, regWrites);
  74         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2316, 1, regWrites);
  75         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2316, freqIndex, regWrites);
  76
  77         /* For AP51 */
  78         if (!ahp->ah_cwCalRequire) {
  79                 OS_REG_WRITE(ah, 0xa358, (OS_REG_READ(ah, 0xa358) & ~0x2));
  80         } else {
  81                 ahp->ah_cwCalRequire = AH_FALSE;
  82         }
  83 }
  84
  85 /*
  86  * Take the MHz channel value and set the Channel value
  87  *
  88  * ASSUMES: Writes enabled to analog bus
  89  */
  90 static HAL_BOOL
  91 ar2316SetChannel(struct ath_hal *ah,  HAL_CHANNEL_INTERNAL *chan)
  92 {
  93         uint32_t channelSel  = 0;
  94         uint32_t bModeSynth  = 0;
  95         uint32_t aModeRefSel = 0;
  96         uint32_t reg32       = 0;
  97
  98         OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
  99
 100         if (chan->channel < 4800) {
 101                 uint32_t txctl;
 102
 103                 if (((chan->channel - 2192) % 5) == 0) {
 104                         channelSel = ((chan->channel - 672) * 2 - 3040)/10;
 105                         bModeSynth = 0;
 106                 } else if (((chan->channel - 2224) % 5) == 0) {
 107                         channelSel = ((chan->channel - 704) * 2 - 3040) / 10;
 108                         bModeSynth = 1;
 109                 } else {
 110                         HALDEBUG(ah, HAL_DEBUG_ANY,
 111                             "%s: invalid channel %u MHz\n",
 112                             __func__, chan->channel);
 113                         return AH_FALSE;
 114                 }
 115
 116                 channelSel = (channelSel << 2) & 0xff;
 117                 channelSel = ath_hal_reverseBits(channelSel, 8);
 118
 119                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 120                 if (chan->channel == 2484) {
 121                         /* Enable channel spreading for channel 14 */
 122                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 123                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 124                 } else {
 125                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 126                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 127                 }
 128         } else if ((chan->channel % 20) == 0 && chan->channel >= 5120) {
 129                 channelSel = ath_hal_reverseBits(
 130                         ((chan->channel - 4800) / 20 << 2), 8);
 131                 aModeRefSel = ath_hal_reverseBits(3, 2);
 132         } else if ((chan->channel % 10) == 0) {
 133                 channelSel = ath_hal_reverseBits(
 134                         ((chan->channel - 4800) / 10 << 1), 8);
 135                 aModeRefSel = ath_hal_reverseBits(2, 2);
 136         } else if ((chan->channel % 5) == 0) {
 137                 channelSel = ath_hal_reverseBits(
 138                         (chan->channel - 4800) / 5, 8);
 139                 aModeRefSel = ath_hal_reverseBits(1, 2);
 140         } else {
 141                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 142                     __func__, chan->channel);
 143                 return AH_FALSE;
 144         }
 145
 146         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 147                         (1 << 12) | 0x1;
 148         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 149
 150         reg32 >>= 8;
 151         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 152
 153         AH_PRIVATE(ah)->ah_curchan = chan;
 154         return AH_TRUE;
 155 }
 156
 157 /*
 158  * Reads EEPROM header info from device structure and programs
 159  * all rf registers
 160  *
 161  * REQUIRES: Access to the analog rf device
 162  */
 163 static HAL_BOOL
 164 ar2316SetRfRegs(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan, uint16_t modesIndex, uint16_t *rfXpdGain)
 165 {
 166 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 167         int i;                                                              \
 168         for (i = 0; i < N(ar5212Bank##_ix##_2316); i++)                     \
 169                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2316[i][_col];\
 170 } while (0)
 171         struct ath_hal_5212 *ahp = AH5212(ah);
 172         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 173         uint16_t ob2GHz = 0, db2GHz = 0;
 174         struct ar2316State *priv = AR2316(ah);
 175         int regWrites = 0;
 176
 177         HALDEBUG(ah, HAL_DEBUG_RFPARAM,
 178             "%s: chan 0x%x flag 0x%x modesIndex 0x%x\n",
 179             __func__, chan->channel, chan->channelFlags, modesIndex);
 180
 181         HALASSERT(priv != AH_NULL);
 182
 183         /* Setup rf parameters */
 184         switch (chan->channelFlags & CHANNEL_ALL) {
 185         case CHANNEL_B:
 186                 ob2GHz = ee->ee_obFor24;
 187                 db2GHz = ee->ee_dbFor24;
 188                 break;
 189         case CHANNEL_G:
 190         case CHANNEL_108G:
 191                 ob2GHz = ee->ee_obFor24g;
 192                 db2GHz = ee->ee_dbFor24g;
 193                 break;
 194         default:
 195                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n",
 196                     __func__, chan->channelFlags);
 197                 return AH_FALSE;
 198         }
 199
 200         /* Bank 1 Write */
 201         RF_BANK_SETUP(priv, 1, 1);
 202
 203         /* Bank 2 Write */
 204         RF_BANK_SETUP(priv, 2, modesIndex);
 205
 206         /* Bank 3 Write */
 207         RF_BANK_SETUP(priv, 3, modesIndex);
 208
 209         /* Bank 6 Write */
 210         RF_BANK_SETUP(priv, 6, modesIndex);
 211
 212         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 178, 0);
 213         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 175, 0);
 214
 215         /* Bank 7 Setup */
 216         RF_BANK_SETUP(priv, 7, modesIndex);
 217
 218         /* Write Analog registers */
 219         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2316, priv->Bank1Data, regWrites);
 220         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2316, priv->Bank2Data, regWrites);
 221         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2316, priv->Bank3Data, regWrites);
 222         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2316, priv->Bank6Data, regWrites);
 223         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2316, priv->Bank7Data, regWrites);
 224
 225         /* Now that we have reprogrammed rfgain value, clear the flag. */
 226         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 227
 228         return AH_TRUE;
 229 #undef  RF_BANK_SETUP
 230 }
 231
 232 /*
 233  * Return a reference to the requested RF Bank.
 234  */
 235 static uint32_t *
 236 ar2316GetRfBank(struct ath_hal *ah, int bank)
 237 {
 238         struct ar2316State *priv = AR2316(ah);
 239
 240         HALASSERT(priv != AH_NULL);
 241         switch (bank) {
 242         case 1: return priv->Bank1Data;
 243         case 2: return priv->Bank2Data;
 244         case 3: return priv->Bank3Data;
 245         case 6: return priv->Bank6Data;
 246         case 7: return priv->Bank7Data;
 247         }
 248         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 249             __func__, bank);
 250         return AH_NULL;
 251 }
 252
 253 /*
 254  * Return indices surrounding the value in sorted integer lists.
 255  *
 256  * NB: the input list is assumed to be sorted in ascending order
 257  */
 258 static void
 259 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 260                           uint32_t *vlo, uint32_t *vhi)
 261 {
 262         int16_t target = v;
 263         const int16_t *ep = lp+listSize;
 264         const int16_t *tp;
 265
 266         /*
 267          * Check first and last elements for out-of-bounds conditions.
 268          */
 269         if (target < lp[0]) {
 270                 *vlo = *vhi = 0;
 271                 return;
 272         }
 273         if (target >= ep[-1]) {
 274                 *vlo = *vhi = listSize - 1;
 275                 return;
 276         }
 277
 278         /* look for value being near or between 2 values in list */
 279         for (tp = lp; tp < ep; tp++) {
 280                 /*
 281                  * If value is close to the current value of the list
 282                  * then target is not between values, it is one of the values
 283                  */
 284                 if (*tp == target) {
 285                         *vlo = *vhi = tp - (const int16_t *) lp;
 286                         return;
 287                 }
 288                 /*
 289                  * Look for value being between current value and next value
 290                  * if so return these 2 values
 291                  */
 292                 if (target < tp[1]) {
 293                         *vlo = tp - (const int16_t *) lp;
 294                         *vhi = *vlo + 1;
 295                         return;
 296                 }
 297         }
 298 }
 299
 300 /*
 301  * Fill the Vpdlist for indices Pmax-Pmin
 302  */
 303 static HAL_BOOL
 304 ar2316FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 305                    const int16_t *pwrList, const int16_t *VpdList,
 306                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 307 {
 308         uint16_t ii, jj, kk;
 309         int16_t currPwr = (int16_t)(2*Pmin);
 310         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 311         uint32_t  idxL, idxR;
 312
 313         ii = 0;
 314         jj = 0;
 315
 316         if (numIntercepts < 2)
 317                 return AH_FALSE;
 318
 319         while (ii <= (uint16_t)(Pmax - Pmin)) {
 320                 GetLowerUpperIndex(currPwr, pwrList, numIntercepts,
 321                                          &(idxL), &(idxR));
 322                 if (idxR < 1)
 323                         idxR = 1;                       /* extrapolate below */
 324                 if (idxL == (uint32_t)(numIntercepts - 1))
 325                         idxL = numIntercepts - 2;       /* extrapolate above */
 326                 if (pwrList[idxL] == pwrList[idxR])
 327                         kk = VpdList[idxL];
 328                 else
 329                         kk = (uint16_t)
 330                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 331                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 332                                  (pwrList[idxR] - pwrList[idxL]));
 333                 retVpdList[pdGainIdx][ii] = kk;
 334                 ii++;
 335                 currPwr += 2;                           /* half dB steps */
 336         }
 337
 338         return AH_TRUE;
 339 }
 340
 341 /*
 342  * Returns interpolated or the scaled up interpolated value
 343  */
 344 static int16_t
 345 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 346         int16_t targetLeft, int16_t targetRight)
 347 {
 348         int16_t rv;
 349
 350         if (srcRight != srcLeft) {
 351                 rv = ((target - srcLeft)*targetRight +
 352                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 353         } else {
 354                 rv = targetLeft;
 355         }
 356         return rv;
 357 }
 358
 359 /*
 360  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 361  * Called by ar2316SetPowerTable()
 362  */
 363 static int
 364 ar2316getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 365                 const RAW_DATA_STRUCT_2316 *pRawDataset,
 366                 uint16_t pdGainOverlap_t2,
 367                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 368                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 369 {
 370         struct ar2316State *priv = AR2316(ah);
 371 #define VpdTable_L      priv->vpdTable_L
 372 #define VpdTable_R      priv->vpdTable_R
 373 #define VpdTable_I      priv->vpdTable_I
 374         uint32_t ii, jj, kk;
 375         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 376         uint32_t idxL, idxR;
 377         uint32_t numPdGainsUsed = 0;
 378         /*
 379          * If desired to support -ve power levels in future, just
 380          * change pwr_I_0 to signed 5-bits.
 381          */
 382         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 383         /* to accomodate -ve power levels later on. */
 384         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 385         /* to accomodate -ve power levels later on */
 386         uint16_t numVpd = 0;
 387         uint16_t Vpd_step;
 388         int16_t tmpVal ;
 389         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 390
 391         /* Get upper lower index */
 392         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 393                                  pRawDataset->numChannels, &(idxL), &(idxR));
 394
 395         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 396                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 397                 /* work backwards 'cause highest pdGain for lowest power */
 398                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 399                 if (numVpd > 0) {
 400                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 401                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 402                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 403                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 404                         }
 405                         Pmin_t2[numPdGainsUsed] = (int16_t)
 406                                 (Pmin_t2[numPdGainsUsed] / 2);
 407                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 408                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 409                                 Pmax_t2[numPdGainsUsed] =
 410                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 411                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 412                         ar2316FillVpdTable(
 413                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 414                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 415                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 416                                            );
 417                         ar2316FillVpdTable(
 418                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 419                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 420                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 421                                            );
 422                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 423                                 VpdTable_I[numPdGainsUsed][kk] =
 424                                         interpolate_signed(
 425                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 426                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 427                         }
 428                         /* fill VpdTable_I for this pdGain */
 429                         numPdGainsUsed++;
 430                 }
 431                 /* if this pdGain is used */
 432         }
 433
 434         *pMinCalPower = Pmin_t2[0];
 435         kk = 0; /* index for the final table */
 436         for (ii = 0; ii < numPdGainsUsed; ii++) {
 437                 if (ii == (numPdGainsUsed - 1))
 438                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 439                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 440                 else
 441                         pPdGainBoundaries[ii] = (uint16_t)
 442                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 443                 if (pPdGainBoundaries[ii] > 63) {
 444                         HALDEBUG(ah, HAL_DEBUG_ANY,
 445                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 446                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 447                         pPdGainBoundaries[ii] = 63;
 448                 }
 449
 450                 /* Find starting index for this pdGain */
 451                 if (ii == 0)
 452                         ss = 0; /* for the first pdGain, start from index 0 */
 453                 else
 454                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 455                                 pdGainOverlap_t2;
 456                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 457                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 458                 /*
 459                  *-ve ss indicates need to extrapolate data below for this pdGain
 460                  */
 461                 while (ss < 0) {
 462                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 463                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 464                         ss++;
 465                 }
 466
 467                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 468                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 469                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 470
 471                 while (ss < (int16_t)maxIndex)
 472                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 473
 474                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 475                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 476                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 477                 /*
 478                  * for last gain, pdGainBoundary == Pmax_t2, so will
 479                  * have to extrapolate
 480                  */
 481                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 482                         while(ss < (int16_t)tgtIndex) {
 483                                 tmpVal = (uint16_t)
 484                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 485                                          (ss-maxIndex)*Vpd_step);
 486                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 487                                         127 : tmpVal;
 488                                 ss++;
 489                         }
 490                 }                               /* extrapolated above */
 491         }                                       /* for all pdGainUsed */
 492
 493         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 494                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 495                 ii++;
 496         }
 497         while (kk < 128) {
 498                 pPDADCValues[kk] = pPDADCValues[kk-1];
 499                 kk++;
 500         }
 501
 502         return numPdGainsUsed;
 503 #undef VpdTable_L
 504 #undef VpdTable_R
 505 #undef VpdTable_I
 506 }
 507
 508 static HAL_BOOL
 509 ar2316SetPowerTable(struct ath_hal *ah,
 510         int16_t *minPower, int16_t *maxPower, HAL_CHANNEL_INTERNAL *chan,
 511         uint16_t *rfXpdGain)
 512 {
 513         struct ath_hal_5212 *ahp = AH5212(ah);
 514         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 515         const RAW_DATA_STRUCT_2316 *pRawDataset = AH_NULL;
 516         uint16_t pdGainOverlap_t2;
 517         int16_t minCalPower2316_t2;
 518         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 519         uint16_t gainBoundaries[4];
 520         uint32_t reg32, regoffset;
 521         int i, numPdGainsUsed;
 522 #ifndef AH_USE_INIPDGAIN
 523         uint32_t tpcrg1;
 524 #endif
 525
 526         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 527             __func__, chan->channel,chan->channelFlags);
 528
 529         if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
 530                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 531         else if (IS_CHAN_B(chan))
 532                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 533         else {
 534                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 535                 return AH_FALSE;
 536         }
 537
 538         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 539                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 540
 541         numPdGainsUsed = ar2316getGainBoundariesAndPdadcsForPowers(ah,
 542                 chan->channel, pRawDataset, pdGainOverlap_t2,
 543                 &minCalPower2316_t2,gainBoundaries, rfXpdGain, pdadcValues);
 544         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 545
 546 #ifdef AH_USE_INIPDGAIN
 547         /*
 548          * Use pd_gains curve from eeprom; Atheros always uses
 549          * the default curve from the ini file but some vendors
 550          * (e.g. Zcomax) want to override this curve and not
 551          * honoring their settings results in tx power 5dBm low.
 552          */
 553         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 554                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 555 #else
 556         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 557         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 558                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 559         switch (numPdGainsUsed) {
 560         case 3:
 561                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 562                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 563                 /* fall thru... */
 564         case 2:
 565                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 566                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 567                 /* fall thru... */
 568         case 1:
 569                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 570                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 571                 break;
 572         }
 573 #ifdef AH_DEBUG
 574         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 575                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 576                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 577                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 578 #endif
 579         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 580 #endif
 581
 582         /*
 583          * Note the pdadc table may not start at 0 dBm power, could be
 584          * negative or greater than 0.  Need to offset the power
 585          * values by the amount of minPower for griffin
 586          */
 587         if (minCalPower2316_t2 != 0)
 588                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2316_t2);
 589         else
 590                 ahp->ah_txPowerIndexOffset = 0;
 591
 592         /* Finally, write the power values into the baseband power table */
 593         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 594         for (i = 0; i < 32; i++) {
 595                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 596                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 597                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 598                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 599                 OS_REG_WRITE(ah, regoffset, reg32);
 600                 regoffset += 4;
 601         }
 602
 603         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 604                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 605                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 606                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 607                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 608                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 609
 610         return AH_TRUE;
 611 }
 612
 613 static int16_t
 614 ar2316GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2316 *data)
 615 {
 616         uint32_t ii,jj;
 617         uint16_t Pmin=0,numVpd;
 618
 619         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 620                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 621                 /* work backwards 'cause highest pdGain for lowest power */
 622                 numVpd = data->pDataPerPDGain[jj].numVpd;
 623                 if (numVpd > 0) {
 624                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 625                         return(Pmin);
 626                 }
 627         }
 628         return(Pmin);
 629 }
 630
 631 static int16_t
 632 ar2316GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2316 *data)
 633 {
 634         uint32_t ii;
 635         uint16_t Pmax=0,numVpd;
 636
 637         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 638                 /* work forwards cuase lowest pdGain for highest power */
 639                 numVpd = data->pDataPerPDGain[ii].numVpd;
 640                 if (numVpd > 0) {
 641                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 642                         return(Pmax);
 643                 }
 644         }
 645         return(Pmax);
 646 }
 647
 648 static HAL_BOOL
 649 ar2316GetChannelMaxMinPower(struct ath_hal *ah, HAL_CHANNEL *chan,
 650         int16_t *maxPow, int16_t *minPow)
 651 {
 652         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 653         const RAW_DATA_STRUCT_2316 *pRawDataset = AH_NULL;
 654         const RAW_DATA_PER_CHANNEL_2316 *data=AH_NULL;
 655         uint16_t numChannels;
 656         int totalD,totalF, totalMin,last, i;
 657
 658         *maxPow = 0;
 659
 660         if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
 661                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 662         else if (IS_CHAN_B(chan))
 663                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 664         else
 665                 return(AH_FALSE);
 666
 667         numChannels = pRawDataset->numChannels;
 668         data = pRawDataset->pDataPerChannel;
 669
 670         /* Make sure the channel is in the range of the TP values
 671          *  (freq piers)
 672          */
 673         if (numChannels < 1)
 674                 return(AH_FALSE);
 675
 676         if ((chan->channel < data[0].channelValue) ||
 677             (chan->channel > data[numChannels-1].channelValue)) {
 678                 if (chan->channel < data[0].channelValue) {
 679                         *maxPow = ar2316GetMaxPower(ah, &data[0]);
 680                         *minPow = ar2316GetMinPower(ah, &data[0]);
 681                         return(AH_TRUE);
 682                 } else {
 683                         *maxPow = ar2316GetMaxPower(ah, &data[numChannels - 1]);
 684                         *minPow = ar2316GetMinPower(ah, &data[numChannels - 1]);
 685                         return(AH_TRUE);
 686                 }
 687         }
 688
 689         /* Linearly interpolate the power value now */
 690         for (last=0,i=0; (i<numChannels) && (chan->channel > data[i].channelValue);
 691              last = i++);
 692         totalD = data[i].channelValue - data[last].channelValue;
 693         if (totalD > 0) {
 694                 totalF = ar2316GetMaxPower(ah, &data[i]) - ar2316GetMaxPower(ah, &data[last]);
 695                 *maxPow = (int8_t) ((totalF*(chan->channel-data[last].channelValue) +
 696                                      ar2316GetMaxPower(ah, &data[last])*totalD)/totalD);
 697                 totalMin = ar2316GetMinPower(ah, &data[i]) - ar2316GetMinPower(ah, &data[last]);
 698                 *minPow = (int8_t) ((totalMin*(chan->channel-data[last].channelValue) +
 699                                      ar2316GetMinPower(ah, &data[last])*totalD)/totalD);
 700                 return(AH_TRUE);
 701         } else {
 702                 if (chan->channel == data[i].channelValue) {
 703                         *maxPow = ar2316GetMaxPower(ah, &data[i]);
 704                         *minPow = ar2316GetMinPower(ah, &data[i]);
 705                         return(AH_TRUE);
 706                 } else
 707                         return(AH_FALSE);
 708         }
 709 }
 710
 711 /*
 712  * Free memory for analog bank scratch buffers
 713  */
 714 static void
 715 ar2316RfDetach(struct ath_hal *ah)
 716 {
 717         struct ath_hal_5212 *ahp = AH5212(ah);
 718
 719         HALASSERT(ahp->ah_rfHal != AH_NULL);
 720         ath_hal_free(ahp->ah_rfHal);
 721         ahp->ah_rfHal = AH_NULL;
 722 }
 723
 724 /*
 725  * Allocate memory for private state.
 726  * Scratch Buffer will be reinitialized every reset so no need to zero now
 727  */
 728 static HAL_BOOL
 729 ar2316RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 730 {
 731         struct ath_hal_5212 *ahp = AH5212(ah);
 732         struct ar2316State *priv;
 733
 734         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 735
 736         HALASSERT(ahp->ah_rfHal == AH_NULL);
 737         priv = ath_hal_malloc(sizeof(struct ar2316State));
 738         if (priv == AH_NULL) {
 739                 HALDEBUG(ah, HAL_DEBUG_ANY,
 740                     "%s: cannot allocate private state\n", __func__);
 741                 *status = HAL_ENOMEM;           /* XXX */
 742                 return AH_FALSE;
 743         }
 744         priv->base.rfDetach             = ar2316RfDetach;
 745         priv->base.writeRegs            = ar2316WriteRegs;
 746         priv->base.getRfBank            = ar2316GetRfBank;
 747         priv->base.setChannel           = ar2316SetChannel;
 748         priv->base.setRfRegs            = ar2316SetRfRegs;
 749         priv->base.setPowerTable        = ar2316SetPowerTable;
 750         priv->base.getChannelMaxMinPower = ar2316GetChannelMaxMinPower;
 751         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 752
 753         ahp->ah_pcdacTable = priv->pcdacTable;
 754         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 755         ahp->ah_rfHal = &priv->base;
 756
 757         ahp->ah_cwCalRequire = AH_TRUE;         /* force initial cal */
 758
 759         return AH_TRUE;
 760 }
 761
 762 static HAL_BOOL
 763 ar2316Probe(struct ath_hal *ah)
 764 {
 765         return IS_2316(ah);
 766 }
 767 AH_RF(RF2316, ar2316Probe, ar2316RfAttach);