sys/dev/ath/ath_hal/ar5212/ar2413.c

   1 /*-
   2  * SPDX-License-Identifier: ISC
   3  *
   4  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   5  * Copyright (c) 2002-2008 Atheros Communications, Inc.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  *
  19  * $FreeBSD$
  20  */
  21 #include "opt_ah.h"
  22
  23 #include "ah.h"
  24 #include "ah_internal.h"
  25
  26 #include "ar5212/ar5212.h"
  27 #include "ar5212/ar5212reg.h"
  28 #include "ar5212/ar5212phy.h"
  29
  30 #include "ah_eeprom_v3.h"
  31
  32 #define AH_5212_2413
  33 #include "ar5212/ar5212.ini"
  34
  35 #define N(a)    (sizeof(a)/sizeof(a[0]))
  36
  37 struct ar2413State {
  38         RF_HAL_FUNCS    base;           /* public state, must be first */
  39         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  40
  41         uint32_t        Bank1Data[N(ar5212Bank1_2413)];
  42         uint32_t        Bank2Data[N(ar5212Bank2_2413)];
  43         uint32_t        Bank3Data[N(ar5212Bank3_2413)];
  44         uint32_t        Bank6Data[N(ar5212Bank6_2413)];
  45         uint32_t        Bank7Data[N(ar5212Bank7_2413)];
  46
  47         /*
  48          * Private state for reduced stack usage.
  49          */
  50         /* filled out Vpd table for all pdGains (chanL) */
  51         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  52                             [MAX_PWR_RANGE_IN_HALF_DB];
  53         /* filled out Vpd table for all pdGains (chanR) */
  54         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  55                             [MAX_PWR_RANGE_IN_HALF_DB];
  56         /* filled out Vpd table for all pdGains (interpolated) */
  57         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  58                             [MAX_PWR_RANGE_IN_HALF_DB];
  59 };
  60 #define AR2413(ah)      ((struct ar2413State *) AH5212(ah)->ah_rfHal)
  61
  62 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  63                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  64
  65 static void
  66 ar2413WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  67         int writes)
  68 {
  69         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2413, modesIndex, writes);
  70         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2413, 1, writes);
  71         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2413, freqIndex, writes);
  72 }
  73
  74 /*
  75  * Take the MHz channel value and set the Channel value
  76  *
  77  * ASSUMES: Writes enabled to analog bus
  78  */
  79 static HAL_BOOL
  80 ar2413SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
  81 {
  82         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  83         uint32_t channelSel  = 0;
  84         uint32_t bModeSynth  = 0;
  85         uint32_t aModeRefSel = 0;
  86         uint32_t reg32       = 0;
  87
  88         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  89
  90         if (freq < 4800) {
  91                 uint32_t txctl;
  92
  93                 if (((freq - 2192) % 5) == 0) {
  94                         channelSel = ((freq - 672) * 2 - 3040)/10;
  95                         bModeSynth = 0;
  96                 } else if (((freq - 2224) % 5) == 0) {
  97                         channelSel = ((freq - 704) * 2 - 3040) / 10;
  98                         bModeSynth = 1;
  99                 } else {
 100                         HALDEBUG(ah, HAL_DEBUG_ANY,
 101                             "%s: invalid channel %u MHz\n",
 102                             __func__, freq);
 103                         return AH_FALSE;
 104                 }
 105
 106                 channelSel = (channelSel << 2) & 0xff;
 107                 channelSel = ath_hal_reverseBits(channelSel, 8);
 108
 109                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 110                 if (freq == 2484) {
 111                         /* Enable channel spreading for channel 14 */
 112                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 113                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 114                 } else {
 115                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 116                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 117                 }
 118         } else if (((freq % 5) == 2) && (freq <= 5435)) {
 119                 freq = freq - 2; /* Align to even 5MHz raster */
 120                 channelSel = ath_hal_reverseBits(
 121                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 122                 aModeRefSel = ath_hal_reverseBits(0, 2);
 123         } else if ((freq % 20) == 0 && freq >= 5120) {
 124                 channelSel = ath_hal_reverseBits(
 125                         ((freq - 4800) / 20 << 2), 8);
 126                 aModeRefSel = ath_hal_reverseBits(3, 2);
 127         } else if ((freq % 10) == 0) {
 128                 channelSel = ath_hal_reverseBits(
 129                         ((freq - 4800) / 10 << 1), 8);
 130                 aModeRefSel = ath_hal_reverseBits(2, 2);
 131         } else if ((freq % 5) == 0) {
 132                 channelSel = ath_hal_reverseBits(
 133                         (freq - 4800) / 5, 8);
 134                 aModeRefSel = ath_hal_reverseBits(1, 2);
 135         } else {
 136                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 137                     __func__, freq);
 138                 return AH_FALSE;
 139         }
 140
 141         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 142                         (1 << 12) | 0x1;
 143         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 144
 145         reg32 >>= 8;
 146         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 147
 148         AH_PRIVATE(ah)->ah_curchan = chan;
 149
 150         return AH_TRUE;
 151 }
 152
 153 /*
 154  * Reads EEPROM header info from device structure and programs
 155  * all rf registers
 156  *
 157  * REQUIRES: Access to the analog rf device
 158  */
 159 static HAL_BOOL
 160 ar2413SetRfRegs(struct ath_hal *ah,
 161         const struct ieee80211_channel *chan,
 162         uint16_t modesIndex, uint16_t *rfXpdGain)
 163 {
 164 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 165         int i;                                                              \
 166         for (i = 0; i < N(ar5212Bank##_ix##_2413); i++)                     \
 167                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2413[i][_col];\
 168 } while (0)
 169         struct ath_hal_5212 *ahp = AH5212(ah);
 170         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 171         uint16_t ob2GHz = 0, db2GHz = 0;
 172         struct ar2413State *priv = AR2413(ah);
 173         int regWrites = 0;
 174
 175         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 176             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 177
 178         HALASSERT(priv);
 179
 180         /* Setup rf parameters */
 181         if (IEEE80211_IS_CHAN_B(chan)) {
 182                 ob2GHz = ee->ee_obFor24;
 183                 db2GHz = ee->ee_dbFor24;
 184         } else {
 185                 ob2GHz = ee->ee_obFor24g;
 186                 db2GHz = ee->ee_dbFor24g;
 187         }
 188
 189         /* Bank 1 Write */
 190         RF_BANK_SETUP(priv, 1, 1);
 191
 192         /* Bank 2 Write */
 193         RF_BANK_SETUP(priv, 2, modesIndex);
 194
 195         /* Bank 3 Write */
 196         RF_BANK_SETUP(priv, 3, modesIndex);
 197
 198         /* Bank 6 Write */
 199         RF_BANK_SETUP(priv, 6, modesIndex);
 200
 201         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 168, 0);
 202         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 165, 0);
 203
 204         /* Bank 7 Setup */
 205         RF_BANK_SETUP(priv, 7, modesIndex);
 206
 207         /* Write Analog registers */
 208         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2413, priv->Bank1Data, regWrites);
 209         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2413, priv->Bank2Data, regWrites);
 210         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2413, priv->Bank3Data, regWrites);
 211         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2413, priv->Bank6Data, regWrites);
 212         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2413, priv->Bank7Data, regWrites);
 213
 214         /* Now that we have reprogrammed rfgain value, clear the flag. */
 215         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 216
 217         return AH_TRUE;
 218 #undef  RF_BANK_SETUP
 219 }
 220
 221 /*
 222  * Return a reference to the requested RF Bank.
 223  */
 224 static uint32_t *
 225 ar2413GetRfBank(struct ath_hal *ah, int bank)
 226 {
 227         struct ar2413State *priv = AR2413(ah);
 228
 229         HALASSERT(priv != AH_NULL);
 230         switch (bank) {
 231         case 1: return priv->Bank1Data;
 232         case 2: return priv->Bank2Data;
 233         case 3: return priv->Bank3Data;
 234         case 6: return priv->Bank6Data;
 235         case 7: return priv->Bank7Data;
 236         }
 237         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 238             __func__, bank);
 239         return AH_NULL;
 240 }
 241
 242 /*
 243  * Return indices surrounding the value in sorted integer lists.
 244  *
 245  * NB: the input list is assumed to be sorted in ascending order
 246  */
 247 static void
 248 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 249                           uint32_t *vlo, uint32_t *vhi)
 250 {
 251         int16_t target = v;
 252         const uint16_t *ep = lp+listSize;
 253         const uint16_t *tp;
 254
 255         /*
 256          * Check first and last elements for out-of-bounds conditions.
 257          */
 258         if (target < lp[0]) {
 259                 *vlo = *vhi = 0;
 260                 return;
 261         }
 262         if (target >= ep[-1]) {
 263                 *vlo = *vhi = listSize - 1;
 264                 return;
 265         }
 266
 267         /* look for value being near or between 2 values in list */
 268         for (tp = lp; tp < ep; tp++) {
 269                 /*
 270                  * If value is close to the current value of the list
 271                  * then target is not between values, it is one of the values
 272                  */
 273                 if (*tp == target) {
 274                         *vlo = *vhi = tp - (const uint16_t *) lp;
 275                         return;
 276                 }
 277                 /*
 278                  * Look for value being between current value and next value
 279                  * if so return these 2 values
 280                  */
 281                 if (target < tp[1]) {
 282                         *vlo = tp - (const uint16_t *) lp;
 283                         *vhi = *vlo + 1;
 284                         return;
 285                 }
 286         }
 287 }
 288
 289 /*
 290  * Fill the Vpdlist for indices Pmax-Pmin
 291  */
 292 static HAL_BOOL
 293 ar2413FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 294                    const int16_t *pwrList, const uint16_t *VpdList,
 295                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 296 {
 297         uint16_t ii, jj, kk;
 298         int16_t currPwr = (int16_t)(2*Pmin);
 299         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 300         uint32_t  idxL, idxR;
 301
 302         ii = 0;
 303         jj = 0;
 304
 305         if (numIntercepts < 2)
 306                 return AH_FALSE;
 307
 308         while (ii <= (uint16_t)(Pmax - Pmin)) {
 309                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 310                                    numIntercepts, &(idxL), &(idxR));
 311                 if (idxR < 1)
 312                         idxR = 1;                       /* extrapolate below */
 313                 if (idxL == (uint32_t)(numIntercepts - 1))
 314                         idxL = numIntercepts - 2;       /* extrapolate above */
 315                 if (pwrList[idxL] == pwrList[idxR])
 316                         kk = VpdList[idxL];
 317                 else
 318                         kk = (uint16_t)
 319                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 320                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 321                                  (pwrList[idxR] - pwrList[idxL]));
 322                 retVpdList[pdGainIdx][ii] = kk;
 323                 ii++;
 324                 currPwr += 2;                           /* half dB steps */
 325         }
 326
 327         return AH_TRUE;
 328 }
 329
 330 /*
 331  * Returns interpolated or the scaled up interpolated value
 332  */
 333 static int16_t
 334 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 335         int16_t targetLeft, int16_t targetRight)
 336 {
 337         int16_t rv;
 338
 339         if (srcRight != srcLeft) {
 340                 rv = ((target - srcLeft)*targetRight +
 341                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 342         } else {
 343                 rv = targetLeft;
 344         }
 345         return rv;
 346 }
 347
 348 /*
 349  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 350  * Called by ar2413SetPowerTable()
 351  */
 352 static int
 353 ar2413getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 354                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 355                 uint16_t pdGainOverlap_t2,
 356                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 357                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 358 {
 359         struct ar2413State *priv = AR2413(ah);
 360 #define VpdTable_L      priv->vpdTable_L
 361 #define VpdTable_R      priv->vpdTable_R
 362 #define VpdTable_I      priv->vpdTable_I
 363         uint32_t ii, jj, kk;
 364         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 365         uint32_t idxL, idxR;
 366         uint32_t numPdGainsUsed = 0;
 367         /*
 368          * If desired to support -ve power levels in future, just
 369          * change pwr_I_0 to signed 5-bits.
 370          */
 371         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 372         /* to accommodate -ve power levels later on. */
 373         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 374         /* to accommodate -ve power levels later on */
 375         uint16_t numVpd = 0;
 376         uint16_t Vpd_step;
 377         int16_t tmpVal ;
 378         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 379
 380         /* Get upper lower index */
 381         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 382                                  pRawDataset->numChannels, &(idxL), &(idxR));
 383
 384         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 385                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 386                 /* work backwards 'cause highest pdGain for lowest power */
 387                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 388                 if (numVpd > 0) {
 389                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 390                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 391                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 392                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 393                         }
 394                         Pmin_t2[numPdGainsUsed] = (int16_t)
 395                                 (Pmin_t2[numPdGainsUsed] / 2);
 396                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 397                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 398                                 Pmax_t2[numPdGainsUsed] =
 399                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 400                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 401                         ar2413FillVpdTable(
 402                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 403                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 404                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 405                                            );
 406                         ar2413FillVpdTable(
 407                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 408                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 409                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 410                                            );
 411                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 412                                 VpdTable_I[numPdGainsUsed][kk] =
 413                                         interpolate_signed(
 414                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 415                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 416                         }
 417                         /* fill VpdTable_I for this pdGain */
 418                         numPdGainsUsed++;
 419                 }
 420                 /* if this pdGain is used */
 421         }
 422
 423         *pMinCalPower = Pmin_t2[0];
 424         kk = 0; /* index for the final table */
 425         for (ii = 0; ii < numPdGainsUsed; ii++) {
 426                 if (ii == (numPdGainsUsed - 1))
 427                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 428                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 429                 else
 430                         pPdGainBoundaries[ii] = (uint16_t)
 431                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 432                 if (pPdGainBoundaries[ii] > 63) {
 433                         HALDEBUG(ah, HAL_DEBUG_ANY,
 434                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 435                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 436                         pPdGainBoundaries[ii] = 63;
 437                 }
 438
 439                 /* Find starting index for this pdGain */
 440                 if (ii == 0)
 441                         ss = 0; /* for the first pdGain, start from index 0 */
 442                 else
 443                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 444                                 pdGainOverlap_t2;
 445                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 446                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 447                 /*
 448                  *-ve ss indicates need to extrapolate data below for this pdGain
 449                  */
 450                 while (ss < 0) {
 451                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 452                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 453                         ss++;
 454                 }
 455
 456                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 457                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 458                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 459
 460                 while (ss < (int16_t)maxIndex)
 461                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 462
 463                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 464                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 465                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 466                 /*
 467                  * for last gain, pdGainBoundary == Pmax_t2, so will
 468                  * have to extrapolate
 469                  */
 470                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 471                         while(ss < (int16_t)tgtIndex) {
 472                                 tmpVal = (uint16_t)
 473                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 474                                          (ss-maxIndex)*Vpd_step);
 475                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 476                                         127 : tmpVal;
 477                                 ss++;
 478                         }
 479                 }                               /* extrapolated above */
 480         }                                       /* for all pdGainUsed */
 481
 482         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 483                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 484                 ii++;
 485         }
 486         while (kk < 128) {
 487                 pPDADCValues[kk] = pPDADCValues[kk-1];
 488                 kk++;
 489         }
 490
 491         return numPdGainsUsed;
 492 #undef VpdTable_L
 493 #undef VpdTable_R
 494 #undef VpdTable_I
 495 }
 496
 497 static HAL_BOOL
 498 ar2413SetPowerTable(struct ath_hal *ah,
 499         int16_t *minPower, int16_t *maxPower,
 500         const struct ieee80211_channel *chan,
 501         uint16_t *rfXpdGain)
 502 {
 503         uint16_t freq = ath_hal_gethwchannel(ah, chan);
 504         struct ath_hal_5212 *ahp = AH5212(ah);
 505         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 506         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 507         uint16_t pdGainOverlap_t2;
 508         int16_t minCalPower2413_t2;
 509         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 510         uint16_t gainBoundaries[4];
 511         uint32_t reg32, regoffset;
 512         int i, numPdGainsUsed;
 513 #ifndef AH_USE_INIPDGAIN
 514         uint32_t tpcrg1;
 515 #endif
 516
 517         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 518             __func__, freq, chan->ic_flags);
 519
 520         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 521                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 522         else if (IEEE80211_IS_CHAN_B(chan))
 523                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 524         else {
 525                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 526                 return AH_FALSE;
 527         }
 528
 529         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 530                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 531
 532         numPdGainsUsed = ar2413getGainBoundariesAndPdadcsForPowers(ah,
 533                 freq, pRawDataset, pdGainOverlap_t2,
 534                 &minCalPower2413_t2,gainBoundaries, rfXpdGain, pdadcValues);
 535         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 536
 537 #ifdef AH_USE_INIPDGAIN
 538         /*
 539          * Use pd_gains curve from eeprom; Atheros always uses
 540          * the default curve from the ini file but some vendors
 541          * (e.g. Zcomax) want to override this curve and not
 542          * honoring their settings results in tx power 5dBm low.
 543          */
 544         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 545                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 546 #else
 547         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 548         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 549                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 550         switch (numPdGainsUsed) {
 551         case 3:
 552                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 553                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 554                 /* fall thru... */
 555         case 2:
 556                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 557                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 558                 /* fall thru... */
 559         case 1:
 560                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 561                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 562                 break;
 563         }
 564 #ifdef AH_DEBUG
 565         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 566                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 567                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 568                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 569 #endif
 570         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 571 #endif
 572
 573         /*
 574          * Note the pdadc table may not start at 0 dBm power, could be
 575          * negative or greater than 0.  Need to offset the power
 576          * values by the amount of minPower for griffin
 577          */
 578         if (minCalPower2413_t2 != 0)
 579                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2);
 580         else
 581                 ahp->ah_txPowerIndexOffset = 0;
 582
 583         /* Finally, write the power values into the baseband power table */
 584         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 585         for (i = 0; i < 32; i++) {
 586                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 587                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 588                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 589                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 590                 OS_REG_WRITE(ah, regoffset, reg32);
 591                 regoffset += 4;
 592         }
 593
 594         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 595                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 596                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 597                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 598                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 599                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 600
 601         return AH_TRUE;
 602 }
 603
 604 static int16_t
 605 ar2413GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 606 {
 607         uint32_t ii,jj;
 608         uint16_t Pmin=0,numVpd;
 609
 610         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 611                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 612                 /* work backwards 'cause highest pdGain for lowest power */
 613                 numVpd = data->pDataPerPDGain[jj].numVpd;
 614                 if (numVpd > 0) {
 615                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 616                         return(Pmin);
 617                 }
 618         }
 619         return(Pmin);
 620 }
 621
 622 static int16_t
 623 ar2413GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 624 {
 625         uint32_t ii;
 626         uint16_t Pmax=0,numVpd;
 627
 628         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 629                 /* work forwards cuase lowest pdGain for highest power */
 630                 numVpd = data->pDataPerPDGain[ii].numVpd;
 631                 if (numVpd > 0) {
 632                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 633                         return(Pmax);
 634                 }
 635         }
 636         return(Pmax);
 637 }
 638
 639 static HAL_BOOL
 640 ar2413GetChannelMaxMinPower(struct ath_hal *ah,
 641         const struct ieee80211_channel *chan,
 642         int16_t *maxPow, int16_t *minPow)
 643 {
 644         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 645         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 646         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 647         const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL;
 648         uint16_t numChannels;
 649         int totalD,totalF, totalMin,last, i;
 650
 651         *maxPow = 0;
 652
 653         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 654                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 655         else if (IEEE80211_IS_CHAN_B(chan))
 656                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 657         else
 658                 return(AH_FALSE);
 659
 660         numChannels = pRawDataset->numChannels;
 661         data = pRawDataset->pDataPerChannel;
 662
 663         /* Make sure the channel is in the range of the TP values
 664          *  (freq piers)
 665          */
 666         if (numChannels < 1)
 667                 return(AH_FALSE);
 668
 669         if ((freq < data[0].channelValue) ||
 670             (freq > data[numChannels-1].channelValue)) {
 671                 if (freq < data[0].channelValue) {
 672                         *maxPow = ar2413GetMaxPower(ah, &data[0]);
 673                         *minPow = ar2413GetMinPower(ah, &data[0]);
 674                         return(AH_TRUE);
 675                 } else {
 676                         *maxPow = ar2413GetMaxPower(ah, &data[numChannels - 1]);
 677                         *minPow = ar2413GetMinPower(ah, &data[numChannels - 1]);
 678                         return(AH_TRUE);
 679                 }
 680         }
 681
 682         /* Linearly interpolate the power value now */
 683         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 684              last = i++);
 685         totalD = data[i].channelValue - data[last].channelValue;
 686         if (totalD > 0) {
 687                 totalF = ar2413GetMaxPower(ah, &data[i]) - ar2413GetMaxPower(ah, &data[last]);
 688                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 689                                      ar2413GetMaxPower(ah, &data[last])*totalD)/totalD);
 690                 totalMin = ar2413GetMinPower(ah, &data[i]) - ar2413GetMinPower(ah, &data[last]);
 691                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 692                                      ar2413GetMinPower(ah, &data[last])*totalD)/totalD);
 693                 return(AH_TRUE);
 694         } else {
 695                 if (freq == data[i].channelValue) {
 696                         *maxPow = ar2413GetMaxPower(ah, &data[i]);
 697                         *minPow = ar2413GetMinPower(ah, &data[i]);
 698                         return(AH_TRUE);
 699                 } else
 700                         return(AH_FALSE);
 701         }
 702 }
 703
 704 /*
 705  * Free memory for analog bank scratch buffers
 706  */
 707 static void
 708 ar2413RfDetach(struct ath_hal *ah)
 709 {
 710         struct ath_hal_5212 *ahp = AH5212(ah);
 711
 712         HALASSERT(ahp->ah_rfHal != AH_NULL);
 713         ath_hal_free(ahp->ah_rfHal);
 714         ahp->ah_rfHal = AH_NULL;
 715 }
 716
 717 /*
 718  * Allocate memory for analog bank scratch buffers
 719  * Scratch Buffer will be reinitialized every reset so no need to zero now
 720  */
 721 static HAL_BOOL
 722 ar2413RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 723 {
 724         struct ath_hal_5212 *ahp = AH5212(ah);
 725         struct ar2413State *priv;
 726
 727         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 728
 729         HALASSERT(ahp->ah_rfHal == AH_NULL);
 730         priv = ath_hal_malloc(sizeof(struct ar2413State));
 731         if (priv == AH_NULL) {
 732                 HALDEBUG(ah, HAL_DEBUG_ANY,
 733                     "%s: cannot allocate private state\n", __func__);
 734                 *status = HAL_ENOMEM;           /* XXX */
 735                 return AH_FALSE;
 736         }
 737         priv->base.rfDetach             = ar2413RfDetach;
 738         priv->base.writeRegs            = ar2413WriteRegs;
 739         priv->base.getRfBank            = ar2413GetRfBank;
 740         priv->base.setChannel           = ar2413SetChannel;
 741         priv->base.setRfRegs            = ar2413SetRfRegs;
 742         priv->base.setPowerTable        = ar2413SetPowerTable;
 743         priv->base.getChannelMaxMinPower = ar2413GetChannelMaxMinPower;
 744         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 745
 746         ahp->ah_pcdacTable = priv->pcdacTable;
 747         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 748         ahp->ah_rfHal = &priv->base;
 749
 750         return AH_TRUE;
 751 }
 752
 753 static HAL_BOOL
 754 ar2413Probe(struct ath_hal *ah)
 755 {
 756         return IS_2413(ah);
 757 }
 758 AH_RF(RF2413, ar2413Probe, ar2413RfAttach);