sys/dev/ath/ath_hal/ar5212/ar2316.c

   1 /*
   2  * Copyright (c) 2002-2009 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  * $FreeBSD$
  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,  struct ieee80211_channel *chan)
  92 {
  93         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  94         uint32_t channelSel  = 0;
  95         uint32_t bModeSynth  = 0;
  96         uint32_t aModeRefSel = 0;
  97         uint32_t reg32       = 0;
  98
  99         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
 100
 101         if (freq < 4800) {
 102                 uint32_t txctl;
 103
 104                 if (((freq - 2192) % 5) == 0) {
 105                         channelSel = ((freq - 672) * 2 - 3040)/10;
 106                         bModeSynth = 0;
 107                 } else if (((freq - 2224) % 5) == 0) {
 108                         channelSel = ((freq - 704) * 2 - 3040) / 10;
 109                         bModeSynth = 1;
 110                 } else {
 111                         HALDEBUG(ah, HAL_DEBUG_ANY,
 112                             "%s: invalid channel %u MHz\n",
 113                             __func__, freq);
 114                         return AH_FALSE;
 115                 }
 116
 117                 channelSel = (channelSel << 2) & 0xff;
 118                 channelSel = ath_hal_reverseBits(channelSel, 8);
 119
 120                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 121                 if (freq == 2484) {
 122                         /* Enable channel spreading for channel 14 */
 123                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 124                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 125                 } else {
 126                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 127                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 128                 }
 129         } else if ((freq % 20) == 0 && freq >= 5120) {
 130                 channelSel = ath_hal_reverseBits(
 131                         ((freq - 4800) / 20 << 2), 8);
 132                 aModeRefSel = ath_hal_reverseBits(3, 2);
 133         } else if ((freq % 10) == 0) {
 134                 channelSel = ath_hal_reverseBits(
 135                         ((freq - 4800) / 10 << 1), 8);
 136                 aModeRefSel = ath_hal_reverseBits(2, 2);
 137         } else if ((freq % 5) == 0) {
 138                 channelSel = ath_hal_reverseBits(
 139                         (freq - 4800) / 5, 8);
 140                 aModeRefSel = ath_hal_reverseBits(1, 2);
 141         } else {
 142                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 143                     __func__, freq);
 144                 return AH_FALSE;
 145         }
 146
 147         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 148                         (1 << 12) | 0x1;
 149         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 150
 151         reg32 >>= 8;
 152         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 153
 154         AH_PRIVATE(ah)->ah_curchan = chan;
 155         return AH_TRUE;
 156 }
 157
 158 /*
 159  * Reads EEPROM header info from device structure and programs
 160  * all rf registers
 161  *
 162  * REQUIRES: Access to the analog rf device
 163  */
 164 static HAL_BOOL
 165 ar2316SetRfRegs(struct ath_hal *ah, const struct ieee80211_channel *chan,
 166         uint16_t modesIndex, uint16_t *rfXpdGain)
 167 {
 168 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 169         int i;                                                              \
 170         for (i = 0; i < N(ar5212Bank##_ix##_2316); i++)                     \
 171                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2316[i][_col];\
 172 } while (0)
 173         struct ath_hal_5212 *ahp = AH5212(ah);
 174         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 175         uint16_t ob2GHz = 0, db2GHz = 0;
 176         struct ar2316State *priv = AR2316(ah);
 177         int regWrites = 0;
 178
 179         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 180             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 181
 182         HALASSERT(priv != AH_NULL);
 183
 184         /* Setup rf parameters */
 185         if (IEEE80211_IS_CHAN_B(chan)) {
 186                 ob2GHz = ee->ee_obFor24;
 187                 db2GHz = ee->ee_dbFor24;
 188         } else {
 189                 ob2GHz = ee->ee_obFor24g;
 190                 db2GHz = ee->ee_dbFor24g;
 191         }
 192
 193         /* Bank 1 Write */
 194         RF_BANK_SETUP(priv, 1, 1);
 195
 196         /* Bank 2 Write */
 197         RF_BANK_SETUP(priv, 2, modesIndex);
 198
 199         /* Bank 3 Write */
 200         RF_BANK_SETUP(priv, 3, modesIndex);
 201
 202         /* Bank 6 Write */
 203         RF_BANK_SETUP(priv, 6, modesIndex);
 204
 205         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 178, 0);
 206         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 175, 0);
 207
 208         /* Bank 7 Setup */
 209         RF_BANK_SETUP(priv, 7, modesIndex);
 210
 211         /* Write Analog registers */
 212         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2316, priv->Bank1Data, regWrites);
 213         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2316, priv->Bank2Data, regWrites);
 214         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2316, priv->Bank3Data, regWrites);
 215         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2316, priv->Bank6Data, regWrites);
 216         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2316, priv->Bank7Data, regWrites);
 217
 218         /* Now that we have reprogrammed rfgain value, clear the flag. */
 219         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 220
 221         return AH_TRUE;
 222 #undef  RF_BANK_SETUP
 223 }
 224
 225 /*
 226  * Return a reference to the requested RF Bank.
 227  */
 228 static uint32_t *
 229 ar2316GetRfBank(struct ath_hal *ah, int bank)
 230 {
 231         struct ar2316State *priv = AR2316(ah);
 232
 233         HALASSERT(priv != AH_NULL);
 234         switch (bank) {
 235         case 1: return priv->Bank1Data;
 236         case 2: return priv->Bank2Data;
 237         case 3: return priv->Bank3Data;
 238         case 6: return priv->Bank6Data;
 239         case 7: return priv->Bank7Data;
 240         }
 241         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 242             __func__, bank);
 243         return AH_NULL;
 244 }
 245
 246 /*
 247  * Return indices surrounding the value in sorted integer lists.
 248  *
 249  * NB: the input list is assumed to be sorted in ascending order
 250  */
 251 static void
 252 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 253                           uint32_t *vlo, uint32_t *vhi)
 254 {
 255         int16_t target = v;
 256         const int16_t *ep = lp+listSize;
 257         const int16_t *tp;
 258
 259         /*
 260          * Check first and last elements for out-of-bounds conditions.
 261          */
 262         if (target < lp[0]) {
 263                 *vlo = *vhi = 0;
 264                 return;
 265         }
 266         if (target >= ep[-1]) {
 267                 *vlo = *vhi = listSize - 1;
 268                 return;
 269         }
 270
 271         /* look for value being near or between 2 values in list */
 272         for (tp = lp; tp < ep; tp++) {
 273                 /*
 274                  * If value is close to the current value of the list
 275                  * then target is not between values, it is one of the values
 276                  */
 277                 if (*tp == target) {
 278                         *vlo = *vhi = tp - (const int16_t *) lp;
 279                         return;
 280                 }
 281                 /*
 282                  * Look for value being between current value and next value
 283                  * if so return these 2 values
 284                  */
 285                 if (target < tp[1]) {
 286                         *vlo = tp - (const int16_t *) lp;
 287                         *vhi = *vlo + 1;
 288                         return;
 289                 }
 290         }
 291 }
 292
 293 /*
 294  * Fill the Vpdlist for indices Pmax-Pmin
 295  */
 296 static HAL_BOOL
 297 ar2316FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 298                    const int16_t *pwrList, const int16_t *VpdList,
 299                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 300 {
 301         uint16_t ii, jj, kk;
 302         int16_t currPwr = (int16_t)(2*Pmin);
 303         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 304         uint32_t  idxL, idxR;
 305
 306         ii = 0;
 307         jj = 0;
 308
 309         if (numIntercepts < 2)
 310                 return AH_FALSE;
 311
 312         while (ii <= (uint16_t)(Pmax - Pmin)) {
 313                 GetLowerUpperIndex(currPwr, pwrList, numIntercepts,
 314                                          &(idxL), &(idxR));
 315                 if (idxR < 1)
 316                         idxR = 1;                       /* extrapolate below */
 317                 if (idxL == (uint32_t)(numIntercepts - 1))
 318                         idxL = numIntercepts - 2;       /* extrapolate above */
 319                 if (pwrList[idxL] == pwrList[idxR])
 320                         kk = VpdList[idxL];
 321                 else
 322                         kk = (uint16_t)
 323                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 324                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 325                                  (pwrList[idxR] - pwrList[idxL]));
 326                 retVpdList[pdGainIdx][ii] = kk;
 327                 ii++;
 328                 currPwr += 2;                           /* half dB steps */
 329         }
 330
 331         return AH_TRUE;
 332 }
 333
 334 /*
 335  * Returns interpolated or the scaled up interpolated value
 336  */
 337 static int16_t
 338 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 339         int16_t targetLeft, int16_t targetRight)
 340 {
 341         int16_t rv;
 342
 343         if (srcRight != srcLeft) {
 344                 rv = ((target - srcLeft)*targetRight +
 345                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 346         } else {
 347                 rv = targetLeft;
 348         }
 349         return rv;
 350 }
 351
 352 /*
 353  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 354  * Called by ar2316SetPowerTable()
 355  */
 356 static int
 357 ar2316getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 358                 const RAW_DATA_STRUCT_2316 *pRawDataset,
 359                 uint16_t pdGainOverlap_t2,
 360                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 361                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 362 {
 363         struct ar2316State *priv = AR2316(ah);
 364 #define VpdTable_L      priv->vpdTable_L
 365 #define VpdTable_R      priv->vpdTable_R
 366 #define VpdTable_I      priv->vpdTable_I
 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         /*
 372          * If desired to support -ve power levels in future, just
 373          * change pwr_I_0 to signed 5-bits.
 374          */
 375         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 376         /* to accomodate -ve power levels later on. */
 377         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 378         /* to accomodate -ve power levels later on */
 379         uint16_t numVpd = 0;
 380         uint16_t Vpd_step;
 381         int16_t tmpVal ;
 382         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 383
 384         /* Get upper lower index */
 385         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 386                                  pRawDataset->numChannels, &(idxL), &(idxR));
 387
 388         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 389                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 390                 /* work backwards 'cause highest pdGain for lowest power */
 391                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 392                 if (numVpd > 0) {
 393                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 394                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 395                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 396                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 397                         }
 398                         Pmin_t2[numPdGainsUsed] = (int16_t)
 399                                 (Pmin_t2[numPdGainsUsed] / 2);
 400                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 401                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 402                                 Pmax_t2[numPdGainsUsed] =
 403                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 404                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 405                         ar2316FillVpdTable(
 406                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 407                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 408                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 409                                            );
 410                         ar2316FillVpdTable(
 411                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 412                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 413                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 414                                            );
 415                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 416                                 VpdTable_I[numPdGainsUsed][kk] =
 417                                         interpolate_signed(
 418                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 419                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 420                         }
 421                         /* fill VpdTable_I for this pdGain */
 422                         numPdGainsUsed++;
 423                 }
 424                 /* if this pdGain is used */
 425         }
 426
 427         *pMinCalPower = Pmin_t2[0];
 428         kk = 0; /* index for the final table */
 429         for (ii = 0; ii < numPdGainsUsed; ii++) {
 430                 if (ii == (numPdGainsUsed - 1))
 431                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 432                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 433                 else
 434                         pPdGainBoundaries[ii] = (uint16_t)
 435                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 436                 if (pPdGainBoundaries[ii] > 63) {
 437                         HALDEBUG(ah, HAL_DEBUG_ANY,
 438                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 439                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 440                         pPdGainBoundaries[ii] = 63;
 441                 }
 442
 443                 /* Find starting index for this pdGain */
 444                 if (ii == 0)
 445                         ss = 0; /* for the first pdGain, start from index 0 */
 446                 else
 447                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 448                                 pdGainOverlap_t2;
 449                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 450                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 451                 /*
 452                  *-ve ss indicates need to extrapolate data below for this pdGain
 453                  */
 454                 while (ss < 0) {
 455                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 456                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 457                         ss++;
 458                 }
 459
 460                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 461                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 462                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 463
 464                 while (ss < (int16_t)maxIndex)
 465                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 466
 467                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 468                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 469                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 470                 /*
 471                  * for last gain, pdGainBoundary == Pmax_t2, so will
 472                  * have to extrapolate
 473                  */
 474                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 475                         while(ss < (int16_t)tgtIndex) {
 476                                 tmpVal = (uint16_t)
 477                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 478                                          (ss-maxIndex)*Vpd_step);
 479                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 480                                         127 : tmpVal;
 481                                 ss++;
 482                         }
 483                 }                               /* extrapolated above */
 484         }                                       /* for all pdGainUsed */
 485
 486         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 487                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 488                 ii++;
 489         }
 490         while (kk < 128) {
 491                 pPDADCValues[kk] = pPDADCValues[kk-1];
 492                 kk++;
 493         }
 494
 495         return numPdGainsUsed;
 496 #undef VpdTable_L
 497 #undef VpdTable_R
 498 #undef VpdTable_I
 499 }
 500
 501 static HAL_BOOL
 502 ar2316SetPowerTable(struct ath_hal *ah,
 503         int16_t *minPower, int16_t *maxPower,
 504         const struct ieee80211_channel *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_2316 *pRawDataset = AH_NULL;
 510         uint16_t pdGainOverlap_t2;
 511         int16_t minCalPower2316_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->ic_freq, chan->ic_flags);
 522
 523         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 524                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 525         else if (IEEE80211_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 = ar2316getGainBoundariesAndPdadcsForPowers(ah,
 536                 chan->channel, pRawDataset, pdGainOverlap_t2,
 537                 &minCalPower2316_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 (minCalPower2316_t2 != 0)
 582                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2316_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 ar2316GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2316 *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 ar2316GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2316 *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 ar2316GetChannelMaxMinPower(struct ath_hal *ah,
 644         const struct ieee80211_channel *chan,
 645         int16_t *maxPow, int16_t *minPow)
 646 {
 647         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 648         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 649         const RAW_DATA_STRUCT_2316 *pRawDataset = AH_NULL;
 650         const RAW_DATA_PER_CHANNEL_2316 *data=AH_NULL;
 651         uint16_t numChannels;
 652         int totalD,totalF, totalMin,last, i;
 653
 654         *maxPow = 0;
 655
 656         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 657                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 658         else if (IEEE80211_IS_CHAN_B(chan))
 659                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 660         else
 661                 return(AH_FALSE);
 662
 663         numChannels = pRawDataset->numChannels;
 664         data = pRawDataset->pDataPerChannel;
 665
 666         /* Make sure the channel is in the range of the TP values
 667          *  (freq piers)
 668          */
 669         if (numChannels < 1)
 670                 return(AH_FALSE);
 671
 672         if ((freq < data[0].channelValue) ||
 673             (freq > data[numChannels-1].channelValue)) {
 674                 if (freq < data[0].channelValue) {
 675                         *maxPow = ar2316GetMaxPower(ah, &data[0]);
 676                         *minPow = ar2316GetMinPower(ah, &data[0]);
 677                         return(AH_TRUE);
 678                 } else {
 679                         *maxPow = ar2316GetMaxPower(ah, &data[numChannels - 1]);
 680                         *minPow = ar2316GetMinPower(ah, &data[numChannels - 1]);
 681                         return(AH_TRUE);
 682                 }
 683         }
 684
 685         /* Linearly interpolate the power value now */
 686         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 687              last = i++);
 688         totalD = data[i].channelValue - data[last].channelValue;
 689         if (totalD > 0) {
 690                 totalF = ar2316GetMaxPower(ah, &data[i]) - ar2316GetMaxPower(ah, &data[last]);
 691                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 692                                      ar2316GetMaxPower(ah, &data[last])*totalD)/totalD);
 693                 totalMin = ar2316GetMinPower(ah, &data[i]) - ar2316GetMinPower(ah, &data[last]);
 694                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 695                                      ar2316GetMinPower(ah, &data[last])*totalD)/totalD);
 696                 return(AH_TRUE);
 697         } else {
 698                 if (freq == data[i].channelValue) {
 699                         *maxPow = ar2316GetMaxPower(ah, &data[i]);
 700                         *minPow = ar2316GetMinPower(ah, &data[i]);
 701                         return(AH_TRUE);
 702                 } else
 703                         return(AH_FALSE);
 704         }
 705 }
 706
 707 /*
 708  * Free memory for analog bank scratch buffers
 709  */
 710 static void
 711 ar2316RfDetach(struct ath_hal *ah)
 712 {
 713         struct ath_hal_5212 *ahp = AH5212(ah);
 714
 715         HALASSERT(ahp->ah_rfHal != AH_NULL);
 716         ath_hal_free(ahp->ah_rfHal);
 717         ahp->ah_rfHal = AH_NULL;
 718 }
 719
 720 /*
 721  * Allocate memory for private state.
 722  * Scratch Buffer will be reinitialized every reset so no need to zero now
 723  */
 724 static HAL_BOOL
 725 ar2316RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 726 {
 727         struct ath_hal_5212 *ahp = AH5212(ah);
 728         struct ar2316State *priv;
 729
 730         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 731
 732         HALASSERT(ahp->ah_rfHal == AH_NULL);
 733         priv = ath_hal_malloc(sizeof(struct ar2316State));
 734         if (priv == AH_NULL) {
 735                 HALDEBUG(ah, HAL_DEBUG_ANY,
 736                     "%s: cannot allocate private state\n", __func__);
 737                 *status = HAL_ENOMEM;           /* XXX */
 738                 return AH_FALSE;
 739         }
 740         priv->base.rfDetach             = ar2316RfDetach;
 741         priv->base.writeRegs            = ar2316WriteRegs;
 742         priv->base.getRfBank            = ar2316GetRfBank;
 743         priv->base.setChannel           = ar2316SetChannel;
 744         priv->base.setRfRegs            = ar2316SetRfRegs;
 745         priv->base.setPowerTable        = ar2316SetPowerTable;
 746         priv->base.getChannelMaxMinPower = ar2316GetChannelMaxMinPower;
 747         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 748
 749         ahp->ah_pcdacTable = priv->pcdacTable;
 750         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 751         ahp->ah_rfHal = &priv->base;
 752
 753         ahp->ah_cwCalRequire = AH_TRUE;         /* force initial cal */
 754
 755         return AH_TRUE;
 756 }
 757
 758 static HAL_BOOL
 759 ar2316Probe(struct ath_hal *ah)
 760 {
 761         return IS_2316(ah);
 762 }
 763 AH_RF(RF2316, ar2316Probe, ar2316RfAttach);