sys/dev/netif/ath/hal/ath_hal/ar5212/ar2413.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: head/sys/dev/ath/ath_hal/ar5212/ar2413.c 187831 2009-01-28 18:00:22Z sam $
  18  * $DragonFly$
  19  */
  20 #include "opt_ah.h"
  21
  22 #include "ah.h"
  23 #include "ah_internal.h"
  24
  25 #include "ar5212/ar5212.h"
  26 #include "ar5212/ar5212reg.h"
  27 #include "ar5212/ar5212phy.h"
  28
  29 #include "ah_eeprom_v3.h"
  30
  31 #define AH_5212_2413
  32 #include "ar5212/ar5212.ini"
  33
  34 #define N(a)    (sizeof(a)/sizeof(a[0]))
  35
  36 struct ar2413State {
  37         RF_HAL_FUNCS    base;           /* public state, must be first */
  38         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  39
  40         uint32_t        Bank1Data[N(ar5212Bank1_2413)];
  41         uint32_t        Bank2Data[N(ar5212Bank2_2413)];
  42         uint32_t        Bank3Data[N(ar5212Bank3_2413)];
  43         uint32_t        Bank6Data[N(ar5212Bank6_2413)];
  44         uint32_t        Bank7Data[N(ar5212Bank7_2413)];
  45
  46         /*
  47          * Private state for reduced stack usage.
  48          */
  49         /* filled out Vpd table for all pdGains (chanL) */
  50         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  51                             [MAX_PWR_RANGE_IN_HALF_DB];
  52         /* filled out Vpd table for all pdGains (chanR) */
  53         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  54                             [MAX_PWR_RANGE_IN_HALF_DB];
  55         /* filled out Vpd table for all pdGains (interpolated) */
  56         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  57                             [MAX_PWR_RANGE_IN_HALF_DB];
  58 };
  59 #define AR2413(ah)      ((struct ar2413State *) AH5212(ah)->ah_rfHal)
  60
  61 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  62                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  63
  64 static void
  65 ar2413WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  66         int writes)
  67 {
  68         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2413, modesIndex, writes);
  69         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2413, 1, writes);
  70         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2413, freqIndex, writes);
  71 }
  72
  73 /*
  74  * Take the MHz channel value and set the Channel value
  75  *
  76  * ASSUMES: Writes enabled to analog bus
  77  */
  78 static HAL_BOOL
  79 ar2413SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
  80 {
  81         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  82         uint32_t channelSel  = 0;
  83         uint32_t bModeSynth  = 0;
  84         uint32_t aModeRefSel = 0;
  85         uint32_t reg32       = 0;
  86
  87         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  88
  89         if (freq < 4800) {
  90                 uint32_t txctl;
  91
  92                 if (((freq - 2192) % 5) == 0) {
  93                         channelSel = ((freq - 672) * 2 - 3040)/10;
  94                         bModeSynth = 0;
  95                 } else if (((freq - 2224) % 5) == 0) {
  96                         channelSel = ((freq - 704) * 2 - 3040) / 10;
  97                         bModeSynth = 1;
  98                 } else {
  99                         HALDEBUG(ah, HAL_DEBUG_ANY,
 100                             "%s: invalid channel %u MHz\n",
 101                             __func__, freq);
 102                         return AH_FALSE;
 103                 }
 104
 105                 channelSel = (channelSel << 2) & 0xff;
 106                 channelSel = ath_hal_reverseBits(channelSel, 8);
 107
 108                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 109                 if (freq == 2484) {
 110                         /* Enable channel spreading for channel 14 */
 111                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 112                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 113                 } else {
 114                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 115                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 116                 }
 117         } else if (((freq % 5) == 2) && (freq <= 5435)) {
 118                 freq = freq - 2; /* Align to even 5MHz raster */
 119                 channelSel = ath_hal_reverseBits(
 120                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 121                 aModeRefSel = ath_hal_reverseBits(0, 2);
 122         } else if ((freq % 20) == 0 && freq >= 5120) {
 123                 channelSel = ath_hal_reverseBits(
 124                         ((freq - 4800) / 20 << 2), 8);
 125                 aModeRefSel = ath_hal_reverseBits(3, 2);
 126         } else if ((freq % 10) == 0) {
 127                 channelSel = ath_hal_reverseBits(
 128                         ((freq - 4800) / 10 << 1), 8);
 129                 aModeRefSel = ath_hal_reverseBits(2, 2);
 130         } else if ((freq % 5) == 0) {
 131                 channelSel = ath_hal_reverseBits(
 132                         (freq - 4800) / 5, 8);
 133                 aModeRefSel = ath_hal_reverseBits(1, 2);
 134         } else {
 135                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 136                     __func__, freq);
 137                 return AH_FALSE;
 138         }
 139
 140         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 141                         (1 << 12) | 0x1;
 142         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 143
 144         reg32 >>= 8;
 145         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 146
 147         AH_PRIVATE(ah)->ah_curchan = chan;
 148
 149         return AH_TRUE;
 150 }
 151
 152 /*
 153  * Reads EEPROM header info from device structure and programs
 154  * all rf registers
 155  *
 156  * REQUIRES: Access to the analog rf device
 157  */
 158 static HAL_BOOL
 159 ar2413SetRfRegs(struct ath_hal *ah,
 160         const struct ieee80211_channel *chan,
 161         uint16_t modesIndex, uint16_t *rfXpdGain)
 162 {
 163 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 164         int i;                                                              \
 165         for (i = 0; i < N(ar5212Bank##_ix##_2413); i++)                     \
 166                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2413[i][_col];\
 167 } while (0)
 168         struct ath_hal_5212 *ahp = AH5212(ah);
 169         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 170         uint16_t ob2GHz = 0, db2GHz = 0;
 171         struct ar2413State *priv = AR2413(ah);
 172         int regWrites = 0;
 173
 174         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 175             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 176
 177         HALASSERT(priv);
 178
 179         /* Setup rf parameters */
 180         if (IEEE80211_IS_CHAN_B(chan)) {
 181                 ob2GHz = ee->ee_obFor24;
 182                 db2GHz = ee->ee_dbFor24;
 183         } else {
 184                 ob2GHz = ee->ee_obFor24g;
 185                 db2GHz = ee->ee_dbFor24g;
 186         }
 187
 188         /* Bank 1 Write */
 189         RF_BANK_SETUP(priv, 1, 1);
 190
 191         /* Bank 2 Write */
 192         RF_BANK_SETUP(priv, 2, modesIndex);
 193
 194         /* Bank 3 Write */
 195         RF_BANK_SETUP(priv, 3, modesIndex);
 196
 197         /* Bank 6 Write */
 198         RF_BANK_SETUP(priv, 6, modesIndex);
 199
 200         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 168, 0);
 201         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 165, 0);
 202
 203         /* Bank 7 Setup */
 204         RF_BANK_SETUP(priv, 7, modesIndex);
 205
 206         /* Write Analog registers */
 207         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2413, priv->Bank1Data, regWrites);
 208         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2413, priv->Bank2Data, regWrites);
 209         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2413, priv->Bank3Data, regWrites);
 210         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2413, priv->Bank6Data, regWrites);
 211         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2413, priv->Bank7Data, regWrites);
 212
 213         /* Now that we have reprogrammed rfgain value, clear the flag. */
 214         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 215
 216         return AH_TRUE;
 217 #undef  RF_BANK_SETUP
 218 }
 219
 220 /*
 221  * Return a reference to the requested RF Bank.
 222  */
 223 static uint32_t *
 224 ar2413GetRfBank(struct ath_hal *ah, int bank)
 225 {
 226         struct ar2413State *priv = AR2413(ah);
 227
 228         HALASSERT(priv != AH_NULL);
 229         switch (bank) {
 230         case 1: return priv->Bank1Data;
 231         case 2: return priv->Bank2Data;
 232         case 3: return priv->Bank3Data;
 233         case 6: return priv->Bank6Data;
 234         case 7: return priv->Bank7Data;
 235         }
 236         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 237             __func__, bank);
 238         return AH_NULL;
 239 }
 240
 241 /*
 242  * Return indices surrounding the value in sorted integer lists.
 243  *
 244  * NB: the input list is assumed to be sorted in ascending order
 245  */
 246 static void
 247 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 248                           uint32_t *vlo, uint32_t *vhi)
 249 {
 250         int16_t target = v;
 251         const uint16_t *ep = lp+listSize;
 252         const uint16_t *tp;
 253
 254         /*
 255          * Check first and last elements for out-of-bounds conditions.
 256          */
 257         if (target < lp[0]) {
 258                 *vlo = *vhi = 0;
 259                 return;
 260         }
 261         if (target >= ep[-1]) {
 262                 *vlo = *vhi = listSize - 1;
 263                 return;
 264         }
 265
 266         /* look for value being near or between 2 values in list */
 267         for (tp = lp; tp < ep; tp++) {
 268                 /*
 269                  * If value is close to the current value of the list
 270                  * then target is not between values, it is one of the values
 271                  */
 272                 if (*tp == target) {
 273                         *vlo = *vhi = tp - (const uint16_t *) lp;
 274                         return;
 275                 }
 276                 /*
 277                  * Look for value being between current value and next value
 278                  * if so return these 2 values
 279                  */
 280                 if (target < tp[1]) {
 281                         *vlo = tp - (const uint16_t *) lp;
 282                         *vhi = *vlo + 1;
 283                         return;
 284                 }
 285         }
 286 }
 287
 288 /*
 289  * Fill the Vpdlist for indices Pmax-Pmin
 290  */
 291 static HAL_BOOL
 292 ar2413FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 293                    const int16_t *pwrList, const uint16_t *VpdList,
 294                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 295 {
 296         uint16_t ii, jj, kk;
 297         int16_t currPwr = (int16_t)(2*Pmin);
 298         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 299         uint32_t  idxL, idxR;
 300
 301         ii = 0;
 302         jj = 0;
 303
 304         if (numIntercepts < 2)
 305                 return AH_FALSE;
 306
 307         while (ii <= (uint16_t)(Pmax - Pmin)) {
 308                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 309                                    numIntercepts, &(idxL), &(idxR));
 310                 if (idxR < 1)
 311                         idxR = 1;                       /* extrapolate below */
 312                 if (idxL == (uint32_t)(numIntercepts - 1))
 313                         idxL = numIntercepts - 2;       /* extrapolate above */
 314                 if (pwrList[idxL] == pwrList[idxR])
 315                         kk = VpdList[idxL];
 316                 else
 317                         kk = (uint16_t)
 318                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 319                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 320                                  (pwrList[idxR] - pwrList[idxL]));
 321                 retVpdList[pdGainIdx][ii] = kk;
 322                 ii++;
 323                 currPwr += 2;                           /* half dB steps */
 324         }
 325
 326         return AH_TRUE;
 327 }
 328
 329 /*
 330  * Returns interpolated or the scaled up interpolated value
 331  */
 332 static int16_t
 333 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 334         int16_t targetLeft, int16_t targetRight)
 335 {
 336         int16_t rv;
 337
 338         if (srcRight != srcLeft) {
 339                 rv = ((target - srcLeft)*targetRight +
 340                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 341         } else {
 342                 rv = targetLeft;
 343         }
 344         return rv;
 345 }
 346
 347 /*
 348  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 349  * Called by ar2413SetPowerTable()
 350  */
 351 static int
 352 ar2413getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 353                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 354                 uint16_t pdGainOverlap_t2,
 355                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 356                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 357 {
 358         struct ar2413State *priv = AR2413(ah);
 359 #define VpdTable_L      priv->vpdTable_L
 360 #define VpdTable_R      priv->vpdTable_R
 361 #define VpdTable_I      priv->vpdTable_I
 362         uint32_t ii, jj, kk;
 363         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 364         uint32_t idxL, idxR;
 365         uint32_t numPdGainsUsed = 0;
 366         /*
 367          * If desired to support -ve power levels in future, just
 368          * change pwr_I_0 to signed 5-bits.
 369          */
 370         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 371         /* to accomodate -ve power levels later on. */
 372         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 373         /* to accomodate -ve power levels later on */
 374         uint16_t numVpd = 0;
 375         uint16_t Vpd_step;
 376         int16_t tmpVal ;
 377         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 378
 379         /* Get upper lower index */
 380         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 381                                  pRawDataset->numChannels, &(idxL), &(idxR));
 382
 383         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 384                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 385                 /* work backwards 'cause highest pdGain for lowest power */
 386                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 387                 if (numVpd > 0) {
 388                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 389                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 390                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 391                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 392                         }
 393                         Pmin_t2[numPdGainsUsed] = (int16_t)
 394                                 (Pmin_t2[numPdGainsUsed] / 2);
 395                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 396                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 397                                 Pmax_t2[numPdGainsUsed] =
 398                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 399                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 400                         ar2413FillVpdTable(
 401                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 402                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 403                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 404                                            );
 405                         ar2413FillVpdTable(
 406                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 407                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 408                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 409                                            );
 410                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 411                                 VpdTable_I[numPdGainsUsed][kk] =
 412                                         interpolate_signed(
 413                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 414                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 415                         }
 416                         /* fill VpdTable_I for this pdGain */
 417                         numPdGainsUsed++;
 418                 }
 419                 /* if this pdGain is used */
 420         }
 421
 422         *pMinCalPower = Pmin_t2[0];
 423         kk = 0; /* index for the final table */
 424         for (ii = 0; ii < numPdGainsUsed; ii++) {
 425                 if (ii == (numPdGainsUsed - 1))
 426                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 427                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 428                 else
 429                         pPdGainBoundaries[ii] = (uint16_t)
 430                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 431                 if (pPdGainBoundaries[ii] > 63) {
 432                         HALDEBUG(ah, HAL_DEBUG_ANY,
 433                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 434                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 435                         pPdGainBoundaries[ii] = 63;
 436                 }
 437
 438                 /* Find starting index for this pdGain */
 439                 if (ii == 0)
 440                         ss = 0; /* for the first pdGain, start from index 0 */
 441                 else
 442                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 443                                 pdGainOverlap_t2;
 444                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 445                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 446                 /*
 447                  *-ve ss indicates need to extrapolate data below for this pdGain
 448                  */
 449                 while (ss < 0) {
 450                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 451                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 452                         ss++;
 453                 }
 454
 455                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 456                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 457                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 458
 459                 while (ss < (int16_t)maxIndex)
 460                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 461
 462                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 463                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 464                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 465                 /*
 466                  * for last gain, pdGainBoundary == Pmax_t2, so will
 467                  * have to extrapolate
 468                  */
 469                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 470                         while(ss < (int16_t)tgtIndex) {
 471                                 tmpVal = (uint16_t)
 472                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 473                                          (ss-maxIndex)*Vpd_step);
 474                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 475                                         127 : tmpVal;
 476                                 ss++;
 477                         }
 478                 }                               /* extrapolated above */
 479         }                                       /* for all pdGainUsed */
 480
 481         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 482                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 483                 ii++;
 484         }
 485         while (kk < 128) {
 486                 pPDADCValues[kk] = pPDADCValues[kk-1];
 487                 kk++;
 488         }
 489
 490         return numPdGainsUsed;
 491 #undef VpdTable_L
 492 #undef VpdTable_R
 493 #undef VpdTable_I
 494 }
 495
 496 static HAL_BOOL
 497 ar2413SetPowerTable(struct ath_hal *ah,
 498         int16_t *minPower, int16_t *maxPower,
 499         const struct ieee80211_channel *chan,
 500         uint16_t *rfXpdGain)
 501 {
 502         uint16_t freq = ath_hal_gethwchannel(ah, chan);
 503         struct ath_hal_5212 *ahp = AH5212(ah);
 504         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 505         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 506         uint16_t pdGainOverlap_t2;
 507         int16_t minCalPower2413_t2;
 508         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 509         uint16_t gainBoundaries[4];
 510         uint32_t reg32, regoffset;
 511         int i, numPdGainsUsed;
 512 #ifndef AH_USE_INIPDGAIN
 513         uint32_t tpcrg1;
 514 #endif
 515
 516         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 517             __func__, freq, chan->ic_flags);
 518
 519         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 520                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 521         else if (IEEE80211_IS_CHAN_B(chan))
 522                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 523         else {
 524                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 525                 return AH_FALSE;
 526         }
 527
 528         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 529                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 530
 531         numPdGainsUsed = ar2413getGainBoundariesAndPdadcsForPowers(ah,
 532                 freq, pRawDataset, pdGainOverlap_t2,
 533                 &minCalPower2413_t2,gainBoundaries, rfXpdGain, pdadcValues);
 534         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 535
 536 #ifdef AH_USE_INIPDGAIN
 537         /*
 538          * Use pd_gains curve from eeprom; Atheros always uses
 539          * the default curve from the ini file but some vendors
 540          * (e.g. Zcomax) want to override this curve and not
 541          * honoring their settings results in tx power 5dBm low.
 542          */
 543         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 544                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 545 #else
 546         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 547         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 548                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 549         switch (numPdGainsUsed) {
 550         case 3:
 551                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 552                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 553                 /* fall thru... */
 554         case 2:
 555                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 556                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 557                 /* fall thru... */
 558         case 1:
 559                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 560                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 561                 break;
 562         }
 563 #ifdef AH_DEBUG
 564         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 565                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 566                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 567                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 568 #endif
 569         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 570 #endif
 571
 572         /*
 573          * Note the pdadc table may not start at 0 dBm power, could be
 574          * negative or greater than 0.  Need to offset the power
 575          * values by the amount of minPower for griffin
 576          */
 577         if (minCalPower2413_t2 != 0)
 578                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2);
 579         else
 580                 ahp->ah_txPowerIndexOffset = 0;
 581
 582         /* Finally, write the power values into the baseband power table */
 583         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 584         for (i = 0; i < 32; i++) {
 585                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 586                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 587                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 588                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 589                 OS_REG_WRITE(ah, regoffset, reg32);
 590                 regoffset += 4;
 591         }
 592
 593         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 594                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 595                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 596                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 597                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 598                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 599
 600         return AH_TRUE;
 601 }
 602
 603 static int16_t
 604 ar2413GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 605 {
 606         uint32_t ii,jj;
 607         uint16_t Pmin=0,numVpd;
 608
 609         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 610                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 611                 /* work backwards 'cause highest pdGain for lowest power */
 612                 numVpd = data->pDataPerPDGain[jj].numVpd;
 613                 if (numVpd > 0) {
 614                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 615                         return(Pmin);
 616                 }
 617         }
 618         return(Pmin);
 619 }
 620
 621 static int16_t
 622 ar2413GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 623 {
 624         uint32_t ii;
 625         uint16_t Pmax=0,numVpd;
 626
 627         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 628                 /* work forwards cuase lowest pdGain for highest power */
 629                 numVpd = data->pDataPerPDGain[ii].numVpd;
 630                 if (numVpd > 0) {
 631                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 632                         return(Pmax);
 633                 }
 634         }
 635         return(Pmax);
 636 }
 637
 638 static HAL_BOOL
 639 ar2413GetChannelMaxMinPower(struct ath_hal *ah,
 640         const struct ieee80211_channel *chan,
 641         int16_t *maxPow, int16_t *minPow)
 642 {
 643         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 644         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 645         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 646         const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL;
 647         uint16_t numChannels;
 648         int totalD,totalF, totalMin,last, i;
 649
 650         *maxPow = 0;
 651
 652         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 653                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 654         else if (IEEE80211_IS_CHAN_B(chan))
 655                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 656         else
 657                 return(AH_FALSE);
 658
 659         numChannels = pRawDataset->numChannels;
 660         data = pRawDataset->pDataPerChannel;
 661
 662         /* Make sure the channel is in the range of the TP values
 663          *  (freq piers)
 664          */
 665         if (numChannels < 1)
 666                 return(AH_FALSE);
 667
 668         if ((freq < data[0].channelValue) ||
 669             (freq > data[numChannels-1].channelValue)) {
 670                 if (freq < data[0].channelValue) {
 671                         *maxPow = ar2413GetMaxPower(ah, &data[0]);
 672                         *minPow = ar2413GetMinPower(ah, &data[0]);
 673                         return(AH_TRUE);
 674                 } else {
 675                         *maxPow = ar2413GetMaxPower(ah, &data[numChannels - 1]);
 676                         *minPow = ar2413GetMinPower(ah, &data[numChannels - 1]);
 677                         return(AH_TRUE);
 678                 }
 679         }
 680
 681         /* Linearly interpolate the power value now */
 682         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 683              last = i++);
 684         totalD = data[i].channelValue - data[last].channelValue;
 685         if (totalD > 0) {
 686                 totalF = ar2413GetMaxPower(ah, &data[i]) - ar2413GetMaxPower(ah, &data[last]);
 687                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 688                                      ar2413GetMaxPower(ah, &data[last])*totalD)/totalD);
 689                 totalMin = ar2413GetMinPower(ah, &data[i]) - ar2413GetMinPower(ah, &data[last]);
 690                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 691                                      ar2413GetMinPower(ah, &data[last])*totalD)/totalD);
 692                 return(AH_TRUE);
 693         } else {
 694                 if (freq == data[i].channelValue) {
 695                         *maxPow = ar2413GetMaxPower(ah, &data[i]);
 696                         *minPow = ar2413GetMinPower(ah, &data[i]);
 697                         return(AH_TRUE);
 698                 } else
 699                         return(AH_FALSE);
 700         }
 701 }
 702
 703 /*
 704  * Free memory for analog bank scratch buffers
 705  */
 706 static void
 707 ar2413RfDetach(struct ath_hal *ah)
 708 {
 709         struct ath_hal_5212 *ahp = AH5212(ah);
 710
 711         HALASSERT(ahp->ah_rfHal != AH_NULL);
 712         ath_hal_free(ahp->ah_rfHal);
 713         ahp->ah_rfHal = AH_NULL;
 714 }
 715
 716 /*
 717  * Allocate memory for analog bank scratch buffers
 718  * Scratch Buffer will be reinitialized every reset so no need to zero now
 719  */
 720 static HAL_BOOL
 721 ar2413RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 722 {
 723         struct ath_hal_5212 *ahp = AH5212(ah);
 724         struct ar2413State *priv;
 725
 726         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 727
 728         HALASSERT(ahp->ah_rfHal == AH_NULL);
 729         priv = ath_hal_malloc(sizeof(struct ar2413State));
 730         if (priv == AH_NULL) {
 731                 HALDEBUG(ah, HAL_DEBUG_ANY,
 732                     "%s: cannot allocate private state\n", __func__);
 733                 *status = HAL_ENOMEM;           /* XXX */
 734                 return AH_FALSE;
 735         }
 736         priv->base.rfDetach             = ar2413RfDetach;
 737         priv->base.writeRegs            = ar2413WriteRegs;
 738         priv->base.getRfBank            = ar2413GetRfBank;
 739         priv->base.setChannel           = ar2413SetChannel;
 740         priv->base.setRfRegs            = ar2413SetRfRegs;
 741         priv->base.setPowerTable        = ar2413SetPowerTable;
 742         priv->base.getChannelMaxMinPower = ar2413GetChannelMaxMinPower;
 743         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 744
 745         ahp->ah_pcdacTable = priv->pcdacTable;
 746         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 747         ahp->ah_rfHal = &priv->base;
 748
 749         return AH_TRUE;
 750 }
 751
 752 static HAL_BOOL
 753 ar2413Probe(struct ath_hal *ah)
 754 {
 755         return IS_2413(ah);
 756 }
 757 AH_RF(RF2413, ar2413Probe, ar2413RfAttach);