sys/dev/netif/ath/hal/ath_hal/ar5212/ar2413.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: ar2413.c,v 1.8 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_2413
  31 #include "ar5212/ar5212.ini"
  32
  33 #define N(a)    (sizeof(a)/sizeof(a[0]))
  34
  35 struct ar2413State {
  36         RF_HAL_FUNCS    base;           /* public state, must be first */
  37         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  38
  39         uint32_t        Bank1Data[N(ar5212Bank1_2413)];
  40         uint32_t        Bank2Data[N(ar5212Bank2_2413)];
  41         uint32_t        Bank3Data[N(ar5212Bank3_2413)];
  42         uint32_t        Bank6Data[N(ar5212Bank6_2413)];
  43         uint32_t        Bank7Data[N(ar5212Bank7_2413)];
  44
  45         /*
  46          * Private state for reduced stack usage.
  47          */
  48         /* filled out Vpd table for all pdGains (chanL) */
  49         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  50                             [MAX_PWR_RANGE_IN_HALF_DB];
  51         /* filled out Vpd table for all pdGains (chanR) */
  52         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  53                             [MAX_PWR_RANGE_IN_HALF_DB];
  54         /* filled out Vpd table for all pdGains (interpolated) */
  55         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  56                             [MAX_PWR_RANGE_IN_HALF_DB];
  57 };
  58 #define AR2413(ah)      ((struct ar2413State *) AH5212(ah)->ah_rfHal)
  59
  60 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  61                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  62
  63 static void
  64 ar2413WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  65         int writes)
  66 {
  67         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2413, modesIndex, writes);
  68         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2413, 1, writes);
  69         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2413, freqIndex, writes);
  70 }
  71
  72 /*
  73  * Take the MHz channel value and set the Channel value
  74  *
  75  * ASSUMES: Writes enabled to analog bus
  76  */
  77 static HAL_BOOL
  78 ar2413SetChannel(struct ath_hal *ah,  HAL_CHANNEL_INTERNAL *chan)
  79 {
  80         uint32_t channelSel  = 0;
  81         uint32_t bModeSynth  = 0;
  82         uint32_t aModeRefSel = 0;
  83         uint32_t reg32       = 0;
  84         uint16_t freq;
  85
  86         OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
  87
  88         if (chan->channel < 4800) {
  89                 uint32_t txctl;
  90
  91                 if (((chan->channel - 2192) % 5) == 0) {
  92                         channelSel = ((chan->channel - 672) * 2 - 3040)/10;
  93                         bModeSynth = 0;
  94                 } else if (((chan->channel - 2224) % 5) == 0) {
  95                         channelSel = ((chan->channel - 704) * 2 - 3040) / 10;
  96                         bModeSynth = 1;
  97                 } else {
  98                         HALDEBUG(ah, HAL_DEBUG_ANY,
  99                             "%s: invalid channel %u MHz\n",
 100                             __func__, chan->channel);
 101                         return AH_FALSE;
 102                 }
 103
 104                 channelSel = (channelSel << 2) & 0xff;
 105                 channelSel = ath_hal_reverseBits(channelSel, 8);
 106
 107                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 108                 if (chan->channel == 2484) {
 109                         /* Enable channel spreading for channel 14 */
 110                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 111                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 112                 } else {
 113                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 114                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 115                 }
 116         } else if (((chan->channel % 5) == 2) && (chan->channel <= 5435)) {
 117                 freq = chan->channel - 2; /* Align to even 5MHz raster */
 118                 channelSel = ath_hal_reverseBits(
 119                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 120                 aModeRefSel = ath_hal_reverseBits(0, 2);
 121         } else if ((chan->channel % 20) == 0 && chan->channel >= 5120) {
 122                 channelSel = ath_hal_reverseBits(
 123                         ((chan->channel - 4800) / 20 << 2), 8);
 124                 aModeRefSel = ath_hal_reverseBits(3, 2);
 125         } else if ((chan->channel % 10) == 0) {
 126                 channelSel = ath_hal_reverseBits(
 127                         ((chan->channel - 4800) / 10 << 1), 8);
 128                 aModeRefSel = ath_hal_reverseBits(2, 2);
 129         } else if ((chan->channel % 5) == 0) {
 130                 channelSel = ath_hal_reverseBits(
 131                         (chan->channel - 4800) / 5, 8);
 132                 aModeRefSel = ath_hal_reverseBits(1, 2);
 133         } else {
 134                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 135                     __func__, chan->channel);
 136                 return AH_FALSE;
 137         }
 138
 139         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 140                         (1 << 12) | 0x1;
 141         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 142
 143         reg32 >>= 8;
 144         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 145
 146         AH_PRIVATE(ah)->ah_curchan = chan;
 147
 148         return AH_TRUE;
 149 }
 150
 151 /*
 152  * Reads EEPROM header info from device structure and programs
 153  * all rf registers
 154  *
 155  * REQUIRES: Access to the analog rf device
 156  */
 157 static HAL_BOOL
 158 ar2413SetRfRegs(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan, uint16_t modesIndex, uint16_t *rfXpdGain)
 159 {
 160 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 161         int i;                                                              \
 162         for (i = 0; i < N(ar5212Bank##_ix##_2413); i++)                     \
 163                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2413[i][_col];\
 164 } while (0)
 165         struct ath_hal_5212 *ahp = AH5212(ah);
 166         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 167         uint16_t ob2GHz = 0, db2GHz = 0;
 168         struct ar2413State *priv = AR2413(ah);
 169         int regWrites = 0;
 170
 171         HALDEBUG(ah, HAL_DEBUG_RFPARAM,
 172             "%s: chan 0x%x flag 0x%x modesIndex 0x%x\n",
 173             __func__, chan->channel, chan->channelFlags, modesIndex);
 174
 175         HALASSERT(priv);
 176
 177         /* Setup rf parameters */
 178         switch (chan->channelFlags & CHANNEL_ALL) {
 179         case CHANNEL_B:
 180                 ob2GHz = ee->ee_obFor24;
 181                 db2GHz = ee->ee_dbFor24;
 182                 break;
 183         case CHANNEL_G:
 184         case CHANNEL_108G:
 185                 ob2GHz = ee->ee_obFor24g;
 186                 db2GHz = ee->ee_dbFor24g;
 187                 break;
 188         default:
 189                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n",
 190                     __func__, chan->channelFlags);
 191                 return AH_FALSE;
 192         }
 193
 194         /* Bank 1 Write */
 195         RF_BANK_SETUP(priv, 1, 1);
 196
 197         /* Bank 2 Write */
 198         RF_BANK_SETUP(priv, 2, modesIndex);
 199
 200         /* Bank 3 Write */
 201         RF_BANK_SETUP(priv, 3, modesIndex);
 202
 203         /* Bank 6 Write */
 204         RF_BANK_SETUP(priv, 6, modesIndex);
 205
 206         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 168, 0);
 207         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 165, 0);
 208
 209         /* Bank 7 Setup */
 210         RF_BANK_SETUP(priv, 7, modesIndex);
 211
 212         /* Write Analog registers */
 213         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2413, priv->Bank1Data, regWrites);
 214         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2413, priv->Bank2Data, regWrites);
 215         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2413, priv->Bank3Data, regWrites);
 216         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2413, priv->Bank6Data, regWrites);
 217         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2413, priv->Bank7Data, regWrites);
 218
 219         /* Now that we have reprogrammed rfgain value, clear the flag. */
 220         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 221
 222         return AH_TRUE;
 223 #undef  RF_BANK_SETUP
 224 }
 225
 226 /*
 227  * Return a reference to the requested RF Bank.
 228  */
 229 static uint32_t *
 230 ar2413GetRfBank(struct ath_hal *ah, int bank)
 231 {
 232         struct ar2413State *priv = AR2413(ah);
 233
 234         HALASSERT(priv != AH_NULL);
 235         switch (bank) {
 236         case 1: return priv->Bank1Data;
 237         case 2: return priv->Bank2Data;
 238         case 3: return priv->Bank3Data;
 239         case 6: return priv->Bank6Data;
 240         case 7: return priv->Bank7Data;
 241         }
 242         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 243             __func__, bank);
 244         return AH_NULL;
 245 }
 246
 247 /*
 248  * Return indices surrounding the value in sorted integer lists.
 249  *
 250  * NB: the input list is assumed to be sorted in ascending order
 251  */
 252 static void
 253 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 254                           uint32_t *vlo, uint32_t *vhi)
 255 {
 256         int16_t target = v;
 257         const uint16_t *ep = lp+listSize;
 258         const uint16_t *tp;
 259
 260         /*
 261          * Check first and last elements for out-of-bounds conditions.
 262          */
 263         if (target < lp[0]) {
 264                 *vlo = *vhi = 0;
 265                 return;
 266         }
 267         if (target >= ep[-1]) {
 268                 *vlo = *vhi = listSize - 1;
 269                 return;
 270         }
 271
 272         /* look for value being near or between 2 values in list */
 273         for (tp = lp; tp < ep; tp++) {
 274                 /*
 275                  * If value is close to the current value of the list
 276                  * then target is not between values, it is one of the values
 277                  */
 278                 if (*tp == target) {
 279                         *vlo = *vhi = tp - (const uint16_t *) lp;
 280                         return;
 281                 }
 282                 /*
 283                  * Look for value being between current value and next value
 284                  * if so return these 2 values
 285                  */
 286                 if (target < tp[1]) {
 287                         *vlo = tp - (const uint16_t *) lp;
 288                         *vhi = *vlo + 1;
 289                         return;
 290                 }
 291         }
 292 }
 293
 294 /*
 295  * Fill the Vpdlist for indices Pmax-Pmin
 296  */
 297 static HAL_BOOL
 298 ar2413FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 299                    const int16_t *pwrList, const uint16_t *VpdList,
 300                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 301 {
 302         uint16_t ii, jj, kk;
 303         int16_t currPwr = (int16_t)(2*Pmin);
 304         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 305         uint32_t  idxL, idxR;
 306
 307         ii = 0;
 308         jj = 0;
 309
 310         if (numIntercepts < 2)
 311                 return AH_FALSE;
 312
 313         while (ii <= (uint16_t)(Pmax - Pmin)) {
 314                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 315                                    numIntercepts, &(idxL), &(idxR));
 316                 if (idxR < 1)
 317                         idxR = 1;                       /* extrapolate below */
 318                 if (idxL == (uint32_t)(numIntercepts - 1))
 319                         idxL = numIntercepts - 2;       /* extrapolate above */
 320                 if (pwrList[idxL] == pwrList[idxR])
 321                         kk = VpdList[idxL];
 322                 else
 323                         kk = (uint16_t)
 324                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 325                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 326                                  (pwrList[idxR] - pwrList[idxL]));
 327                 retVpdList[pdGainIdx][ii] = kk;
 328                 ii++;
 329                 currPwr += 2;                           /* half dB steps */
 330         }
 331
 332         return AH_TRUE;
 333 }
 334
 335 /*
 336  * Returns interpolated or the scaled up interpolated value
 337  */
 338 static int16_t
 339 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 340         int16_t targetLeft, int16_t targetRight)
 341 {
 342         int16_t rv;
 343
 344         if (srcRight != srcLeft) {
 345                 rv = ((target - srcLeft)*targetRight +
 346                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 347         } else {
 348                 rv = targetLeft;
 349         }
 350         return rv;
 351 }
 352
 353 /*
 354  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 355  * Called by ar2413SetPowerTable()
 356  */
 357 static int
 358 ar2413getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 359                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 360                 uint16_t pdGainOverlap_t2,
 361                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 362                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 363 {
 364         struct ar2413State *priv = AR2413(ah);
 365 #define VpdTable_L      priv->vpdTable_L
 366 #define VpdTable_R      priv->vpdTable_R
 367 #define VpdTable_I      priv->vpdTable_I
 368         uint32_t ii, jj, kk;
 369         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 370         uint32_t idxL, idxR;
 371         uint32_t numPdGainsUsed = 0;
 372         /*
 373          * If desired to support -ve power levels in future, just
 374          * change pwr_I_0 to signed 5-bits.
 375          */
 376         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 377         /* to accomodate -ve power levels later on. */
 378         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 379         /* to accomodate -ve power levels later on */
 380         uint16_t numVpd = 0;
 381         uint16_t Vpd_step;
 382         int16_t tmpVal ;
 383         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 384
 385         /* Get upper lower index */
 386         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 387                                  pRawDataset->numChannels, &(idxL), &(idxR));
 388
 389         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 390                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 391                 /* work backwards 'cause highest pdGain for lowest power */
 392                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 393                 if (numVpd > 0) {
 394                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 395                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 396                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 397                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 398                         }
 399                         Pmin_t2[numPdGainsUsed] = (int16_t)
 400                                 (Pmin_t2[numPdGainsUsed] / 2);
 401                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 402                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 403                                 Pmax_t2[numPdGainsUsed] =
 404                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 405                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 406                         ar2413FillVpdTable(
 407                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 408                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 409                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 410                                            );
 411                         ar2413FillVpdTable(
 412                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 413                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 414                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 415                                            );
 416                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 417                                 VpdTable_I[numPdGainsUsed][kk] =
 418                                         interpolate_signed(
 419                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 420                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 421                         }
 422                         /* fill VpdTable_I for this pdGain */
 423                         numPdGainsUsed++;
 424                 }
 425                 /* if this pdGain is used */
 426         }
 427
 428         *pMinCalPower = Pmin_t2[0];
 429         kk = 0; /* index for the final table */
 430         for (ii = 0; ii < numPdGainsUsed; ii++) {
 431                 if (ii == (numPdGainsUsed - 1))
 432                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 433                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 434                 else
 435                         pPdGainBoundaries[ii] = (uint16_t)
 436                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 437                 if (pPdGainBoundaries[ii] > 63) {
 438                         HALDEBUG(ah, HAL_DEBUG_ANY,
 439                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 440                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 441                         pPdGainBoundaries[ii] = 63;
 442                 }
 443
 444                 /* Find starting index for this pdGain */
 445                 if (ii == 0)
 446                         ss = 0; /* for the first pdGain, start from index 0 */
 447                 else
 448                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 449                                 pdGainOverlap_t2;
 450                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 451                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 452                 /*
 453                  *-ve ss indicates need to extrapolate data below for this pdGain
 454                  */
 455                 while (ss < 0) {
 456                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 457                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 458                         ss++;
 459                 }
 460
 461                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 462                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 463                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 464
 465                 while (ss < (int16_t)maxIndex)
 466                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 467
 468                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 469                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 470                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 471                 /*
 472                  * for last gain, pdGainBoundary == Pmax_t2, so will
 473                  * have to extrapolate
 474                  */
 475                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 476                         while(ss < (int16_t)tgtIndex) {
 477                                 tmpVal = (uint16_t)
 478                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 479                                          (ss-maxIndex)*Vpd_step);
 480                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 481                                         127 : tmpVal;
 482                                 ss++;
 483                         }
 484                 }                               /* extrapolated above */
 485         }                                       /* for all pdGainUsed */
 486
 487         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 488                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 489                 ii++;
 490         }
 491         while (kk < 128) {
 492                 pPDADCValues[kk] = pPDADCValues[kk-1];
 493                 kk++;
 494         }
 495
 496         return numPdGainsUsed;
 497 #undef VpdTable_L
 498 #undef VpdTable_R
 499 #undef VpdTable_I
 500 }
 501
 502 static HAL_BOOL
 503 ar2413SetPowerTable(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 reg32, regoffset;
 515         int i, numPdGainsUsed;
 516 #ifndef AH_USE_INIPDGAIN
 517         uint32_t tpcrg1;
 518 #endif
 519
 520         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 521             __func__, chan->channel,chan->channelFlags);
 522
 523         if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
 524                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 525         else if (IS_CHAN_B(chan))
 526                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 527         else {
 528                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 529                 return AH_FALSE;
 530         }
 531
 532         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 533                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 534
 535         numPdGainsUsed = ar2413getGainBoundariesAndPdadcsForPowers(ah,
 536                 chan->channel, pRawDataset, pdGainOverlap_t2,
 537                 &minCalPower2413_t2,gainBoundaries, rfXpdGain, pdadcValues);
 538         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 539
 540 #ifdef AH_USE_INIPDGAIN
 541         /*
 542          * Use pd_gains curve from eeprom; Atheros always uses
 543          * the default curve from the ini file but some vendors
 544          * (e.g. Zcomax) want to override this curve and not
 545          * honoring their settings results in tx power 5dBm low.
 546          */
 547         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 548                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 549 #else
 550         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 551         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 552                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 553         switch (numPdGainsUsed) {
 554         case 3:
 555                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 556                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 557                 /* fall thru... */
 558         case 2:
 559                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 560                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 561                 /* fall thru... */
 562         case 1:
 563                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 564                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 565                 break;
 566         }
 567 #ifdef AH_DEBUG
 568         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 569                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 570                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 571                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 572 #endif
 573         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 574 #endif
 575
 576         /*
 577          * Note the pdadc table may not start at 0 dBm power, could be
 578          * negative or greater than 0.  Need to offset the power
 579          * values by the amount of minPower for griffin
 580          */
 581         if (minCalPower2413_t2 != 0)
 582                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2);
 583         else
 584                 ahp->ah_txPowerIndexOffset = 0;
 585
 586         /* Finally, write the power values into the baseband power table */
 587         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 588         for (i = 0; i < 32; i++) {
 589                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 590                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 591                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 592                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 593                 OS_REG_WRITE(ah, regoffset, reg32);
 594                 regoffset += 4;
 595         }
 596
 597         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 598                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 599                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 600                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 601                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 602                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 603
 604         return AH_TRUE;
 605 }
 606
 607 static int16_t
 608 ar2413GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 609 {
 610         uint32_t ii,jj;
 611         uint16_t Pmin=0,numVpd;
 612
 613         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 614                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 615                 /* work backwards 'cause highest pdGain for lowest power */
 616                 numVpd = data->pDataPerPDGain[jj].numVpd;
 617                 if (numVpd > 0) {
 618                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 619                         return(Pmin);
 620                 }
 621         }
 622         return(Pmin);
 623 }
 624
 625 static int16_t
 626 ar2413GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 627 {
 628         uint32_t ii;
 629         uint16_t Pmax=0,numVpd;
 630
 631         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 632                 /* work forwards cuase lowest pdGain for highest power */
 633                 numVpd = data->pDataPerPDGain[ii].numVpd;
 634                 if (numVpd > 0) {
 635                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 636                         return(Pmax);
 637                 }
 638         }
 639         return(Pmax);
 640 }
 641
 642 static HAL_BOOL
 643 ar2413GetChannelMaxMinPower(struct ath_hal *ah, HAL_CHANNEL *chan,
 644         int16_t *maxPow, int16_t *minPow)
 645 {
 646         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 647         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 648         const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL;
 649         uint16_t numChannels;
 650         int totalD,totalF, totalMin,last, i;
 651
 652         *maxPow = 0;
 653
 654         if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
 655                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 656         else if (IS_CHAN_B(chan))
 657                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 658         else
 659                 return(AH_FALSE);
 660
 661         numChannels = pRawDataset->numChannels;
 662         data = pRawDataset->pDataPerChannel;
 663
 664         /* Make sure the channel is in the range of the TP values
 665          *  (freq piers)
 666          */
 667         if (numChannels < 1)
 668                 return(AH_FALSE);
 669
 670         if ((chan->channel < data[0].channelValue) ||
 671             (chan->channel > data[numChannels-1].channelValue)) {
 672                 if (chan->channel < data[0].channelValue) {
 673                         *maxPow = ar2413GetMaxPower(ah, &data[0]);
 674                         *minPow = ar2413GetMinPower(ah, &data[0]);
 675                         return(AH_TRUE);
 676                 } else {
 677                         *maxPow = ar2413GetMaxPower(ah, &data[numChannels - 1]);
 678                         *minPow = ar2413GetMinPower(ah, &data[numChannels - 1]);
 679                         return(AH_TRUE);
 680                 }
 681         }
 682
 683         /* Linearly interpolate the power value now */
 684         for (last=0,i=0; (i<numChannels) && (chan->channel > data[i].channelValue);
 685              last = i++);
 686         totalD = data[i].channelValue - data[last].channelValue;
 687         if (totalD > 0) {
 688                 totalF = ar2413GetMaxPower(ah, &data[i]) - ar2413GetMaxPower(ah, &data[last]);
 689                 *maxPow = (int8_t) ((totalF*(chan->channel-data[last].channelValue) +
 690                                      ar2413GetMaxPower(ah, &data[last])*totalD)/totalD);
 691                 totalMin = ar2413GetMinPower(ah, &data[i]) - ar2413GetMinPower(ah, &data[last]);
 692                 *minPow = (int8_t) ((totalMin*(chan->channel-data[last].channelValue) +
 693                                      ar2413GetMinPower(ah, &data[last])*totalD)/totalD);
 694                 return(AH_TRUE);
 695         } else {
 696                 if (chan->channel == data[i].channelValue) {
 697                         *maxPow = ar2413GetMaxPower(ah, &data[i]);
 698                         *minPow = ar2413GetMinPower(ah, &data[i]);
 699                         return(AH_TRUE);
 700                 } else
 701                         return(AH_FALSE);
 702         }
 703 }
 704
 705 /*
 706  * Free memory for analog bank scratch buffers
 707  */
 708 static void
 709 ar2413RfDetach(struct ath_hal *ah)
 710 {
 711         struct ath_hal_5212 *ahp = AH5212(ah);
 712
 713         HALASSERT(ahp->ah_rfHal != AH_NULL);
 714         ath_hal_free(ahp->ah_rfHal);
 715         ahp->ah_rfHal = AH_NULL;
 716 }
 717
 718 /*
 719  * Allocate memory for analog bank scratch buffers
 720  * Scratch Buffer will be reinitialized every reset so no need to zero now
 721  */
 722 static HAL_BOOL
 723 ar2413RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 724 {
 725         struct ath_hal_5212 *ahp = AH5212(ah);
 726         struct ar2413State *priv;
 727
 728         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 729
 730         HALASSERT(ahp->ah_rfHal == AH_NULL);
 731         priv = ath_hal_malloc(sizeof(struct ar2413State));
 732         if (priv == AH_NULL) {
 733                 HALDEBUG(ah, HAL_DEBUG_ANY,
 734                     "%s: cannot allocate private state\n", __func__);
 735                 *status = HAL_ENOMEM;           /* XXX */
 736                 return AH_FALSE;
 737         }
 738         priv->base.rfDetach             = ar2413RfDetach;
 739         priv->base.writeRegs            = ar2413WriteRegs;
 740         priv->base.getRfBank            = ar2413GetRfBank;
 741         priv->base.setChannel           = ar2413SetChannel;
 742         priv->base.setRfRegs            = ar2413SetRfRegs;
 743         priv->base.setPowerTable        = ar2413SetPowerTable;
 744         priv->base.getChannelMaxMinPower = ar2413GetChannelMaxMinPower;
 745         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 746
 747         ahp->ah_pcdacTable = priv->pcdacTable;
 748         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 749         ahp->ah_rfHal = &priv->base;
 750
 751         return AH_TRUE;
 752 }
 753
 754 static HAL_BOOL
 755 ar2413Probe(struct ath_hal *ah)
 756 {
 757         return IS_2413(ah);
 758 }
 759 AH_RF(RF2413, ar2413Probe, ar2413RfAttach);