sys/dev/netif/ath/hal/ath_hal/ar5212/ar2317.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/ar2317.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_2317
  32 #include "ar5212/ar5212.ini"
  33
  34 #define N(a)    (sizeof(a)/sizeof(a[0]))
  35
  36 typedef RAW_DATA_STRUCT_2413 RAW_DATA_STRUCT_2317;
  37 typedef RAW_DATA_PER_CHANNEL_2413 RAW_DATA_PER_CHANNEL_2317;
  38 #define PWR_TABLE_SIZE_2317 PWR_TABLE_SIZE_2413
  39
  40 struct ar2317State {
  41         RF_HAL_FUNCS    base;           /* public state, must be first */
  42         uint16_t        pcdacTable[PWR_TABLE_SIZE_2317];
  43
  44         uint32_t        Bank1Data[N(ar5212Bank1_2317)];
  45         uint32_t        Bank2Data[N(ar5212Bank2_2317)];
  46         uint32_t        Bank3Data[N(ar5212Bank3_2317)];
  47         uint32_t        Bank6Data[N(ar5212Bank6_2317)];
  48         uint32_t        Bank7Data[N(ar5212Bank7_2317)];
  49
  50         /*
  51          * Private state for reduced stack usage.
  52          */
  53         /* filled out Vpd table for all pdGains (chanL) */
  54         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  55                             [MAX_PWR_RANGE_IN_HALF_DB];
  56         /* filled out Vpd table for all pdGains (chanR) */
  57         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  58                             [MAX_PWR_RANGE_IN_HALF_DB];
  59         /* filled out Vpd table for all pdGains (interpolated) */
  60         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  61                             [MAX_PWR_RANGE_IN_HALF_DB];
  62 };
  63 #define AR2317(ah)      ((struct ar2317State *) AH5212(ah)->ah_rfHal)
  64
  65 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  66                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  67
  68 static void
  69 ar2317WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  70         int writes)
  71 {
  72         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2317, modesIndex, writes);
  73         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2317, 1, writes);
  74         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2317, freqIndex, writes);
  75 }
  76
  77 /*
  78  * Take the MHz channel value and set the Channel value
  79  *
  80  * ASSUMES: Writes enabled to analog bus
  81  */
  82 static HAL_BOOL
  83 ar2317SetChannel(struct ath_hal *ah,  const struct ieee80211_channel *chan)
  84 {
  85         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  86         uint32_t channelSel  = 0;
  87         uint32_t bModeSynth  = 0;
  88         uint32_t aModeRefSel = 0;
  89         uint32_t reg32       = 0;
  90
  91         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  92
  93         if (freq < 4800) {
  94                 uint32_t txctl;
  95                 channelSel = freq - 2272 ;
  96                 channelSel = ath_hal_reverseBits(channelSel, 8);
  97
  98                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
  99                 if (freq == 2484) {
 100                         /* Enable channel spreading for channel 14 */
 101                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 102                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 103                 } else {
 104                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 105                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 106                 }
 107         } else if ((freq % 20) == 0 && freq >= 5120) {
 108                 channelSel = ath_hal_reverseBits(
 109                         ((freq - 4800) / 20 << 2), 8);
 110                 aModeRefSel = ath_hal_reverseBits(3, 2);
 111         } else if ((freq % 10) == 0) {
 112                 channelSel = ath_hal_reverseBits(
 113                         ((freq - 4800) / 10 << 1), 8);
 114                 aModeRefSel = ath_hal_reverseBits(2, 2);
 115         } else if ((freq % 5) == 0) {
 116                 channelSel = ath_hal_reverseBits(
 117                         (freq - 4800) / 5, 8);
 118                 aModeRefSel = ath_hal_reverseBits(1, 2);
 119         } else {
 120                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 121                     __func__, freq);
 122                 return AH_FALSE;
 123         }
 124
 125         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 126                         (1 << 12) | 0x1;
 127         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 128
 129         reg32 >>= 8;
 130         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 131
 132         AH_PRIVATE(ah)->ah_curchan = chan;
 133         return AH_TRUE;
 134 }
 135
 136 /*
 137  * Reads EEPROM header info from device structure and programs
 138  * all rf registers
 139  *
 140  * REQUIRES: Access to the analog rf device
 141  */
 142 static HAL_BOOL
 143 ar2317SetRfRegs(struct ath_hal *ah,
 144         const struct ieee80211_channel *chan,
 145         uint16_t modesIndex, uint16_t *rfXpdGain)
 146 {
 147 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 148         int i;                                                              \
 149         for (i = 0; i < N(ar5212Bank##_ix##_2317); i++)                     \
 150                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2317[i][_col];\
 151 } while (0)
 152         struct ath_hal_5212 *ahp = AH5212(ah);
 153         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 154         uint16_t ob2GHz = 0, db2GHz = 0;
 155         struct ar2317State *priv = AR2317(ah);
 156         int regWrites = 0;
 157
 158         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 159             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 160
 161         HALASSERT(priv);
 162
 163         /* Setup rf parameters */
 164         if (IEEE80211_IS_CHAN_B(chan)) {
 165                 ob2GHz = ee->ee_obFor24;
 166                 db2GHz = ee->ee_dbFor24;
 167         } else {
 168                 ob2GHz = ee->ee_obFor24g;
 169                 db2GHz = ee->ee_dbFor24g;
 170         }
 171
 172         /* Bank 1 Write */
 173         RF_BANK_SETUP(priv, 1, 1);
 174
 175         /* Bank 2 Write */
 176         RF_BANK_SETUP(priv, 2, modesIndex);
 177
 178         /* Bank 3 Write */
 179         RF_BANK_SETUP(priv, 3, modesIndex);
 180
 181         /* Bank 6 Write */
 182         RF_BANK_SETUP(priv, 6, modesIndex);
 183
 184         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 193, 0);
 185         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 190, 0);
 186
 187         /* Bank 7 Setup */
 188         RF_BANK_SETUP(priv, 7, modesIndex);
 189
 190         /* Write Analog registers */
 191         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2317, priv->Bank1Data, regWrites);
 192         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2317, priv->Bank2Data, regWrites);
 193         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2317, priv->Bank3Data, regWrites);
 194         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2317, priv->Bank6Data, regWrites);
 195         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2317, priv->Bank7Data, regWrites);
 196         /* Now that we have reprogrammed rfgain value, clear the flag. */
 197         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 198
 199         return AH_TRUE;
 200 #undef  RF_BANK_SETUP
 201 }
 202
 203 /*
 204  * Return a reference to the requested RF Bank.
 205  */
 206 static uint32_t *
 207 ar2317GetRfBank(struct ath_hal *ah, int bank)
 208 {
 209         struct ar2317State *priv = AR2317(ah);
 210
 211         HALASSERT(priv != AH_NULL);
 212         switch (bank) {
 213         case 1: return priv->Bank1Data;
 214         case 2: return priv->Bank2Data;
 215         case 3: return priv->Bank3Data;
 216         case 6: return priv->Bank6Data;
 217         case 7: return priv->Bank7Data;
 218         }
 219         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 220             __func__, bank);
 221         return AH_NULL;
 222 }
 223
 224 /*
 225  * Return indices surrounding the value in sorted integer lists.
 226  *
 227  * NB: the input list is assumed to be sorted in ascending order
 228  */
 229 static void
 230 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 231                           uint32_t *vlo, uint32_t *vhi)
 232 {
 233         int16_t target = v;
 234         const int16_t *ep = lp+listSize;
 235         const int16_t *tp;
 236
 237         /*
 238          * Check first and last elements for out-of-bounds conditions.
 239          */
 240         if (target < lp[0]) {
 241                 *vlo = *vhi = 0;
 242                 return;
 243         }
 244         if (target >= ep[-1]) {
 245                 *vlo = *vhi = listSize - 1;
 246                 return;
 247         }
 248
 249         /* look for value being near or between 2 values in list */
 250         for (tp = lp; tp < ep; tp++) {
 251                 /*
 252                  * If value is close to the current value of the list
 253                  * then target is not between values, it is one of the values
 254                  */
 255                 if (*tp == target) {
 256                         *vlo = *vhi = tp - (const int16_t *) lp;
 257                         return;
 258                 }
 259                 /*
 260                  * Look for value being between current value and next value
 261                  * if so return these 2 values
 262                  */
 263                 if (target < tp[1]) {
 264                         *vlo = tp - (const int16_t *) lp;
 265                         *vhi = *vlo + 1;
 266                         return;
 267                 }
 268         }
 269 }
 270
 271 /*
 272  * Fill the Vpdlist for indices Pmax-Pmin
 273  */
 274 static HAL_BOOL
 275 ar2317FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 276                    const int16_t *pwrList, const int16_t *VpdList,
 277                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 278 {
 279         uint16_t ii, jj, kk;
 280         int16_t currPwr = (int16_t)(2*Pmin);
 281         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 282         uint32_t  idxL, idxR;
 283
 284         ii = 0;
 285         jj = 0;
 286
 287         if (numIntercepts < 2)
 288                 return AH_FALSE;
 289
 290         while (ii <= (uint16_t)(Pmax - Pmin)) {
 291                 GetLowerUpperIndex(currPwr, pwrList, numIntercepts,
 292                                          &(idxL), &(idxR));
 293                 if (idxR < 1)
 294                         idxR = 1;                       /* extrapolate below */
 295                 if (idxL == (uint32_t)(numIntercepts - 1))
 296                         idxL = numIntercepts - 2;       /* extrapolate above */
 297                 if (pwrList[idxL] == pwrList[idxR])
 298                         kk = VpdList[idxL];
 299                 else
 300                         kk = (uint16_t)
 301                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 302                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 303                                  (pwrList[idxR] - pwrList[idxL]));
 304                 retVpdList[pdGainIdx][ii] = kk;
 305                 ii++;
 306                 currPwr += 2;                           /* half dB steps */
 307         }
 308
 309         return AH_TRUE;
 310 }
 311
 312 /*
 313  * Returns interpolated or the scaled up interpolated value
 314  */
 315 static int16_t
 316 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 317         int16_t targetLeft, int16_t targetRight)
 318 {
 319         int16_t rv;
 320
 321         if (srcRight != srcLeft) {
 322                 rv = ((target - srcLeft)*targetRight +
 323                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 324         } else {
 325                 rv = targetLeft;
 326         }
 327         return rv;
 328 }
 329
 330 /*
 331  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 332  * Called by ar2317SetPowerTable()
 333  */
 334 static int
 335 ar2317getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 336                 const RAW_DATA_STRUCT_2317 *pRawDataset,
 337                 uint16_t pdGainOverlap_t2,
 338                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 339                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 340 {
 341         struct ar2317State *priv = AR2317(ah);
 342 #define VpdTable_L      priv->vpdTable_L
 343 #define VpdTable_R      priv->vpdTable_R
 344 #define VpdTable_I      priv->vpdTable_I
 345         /* XXX excessive stack usage? */
 346         uint32_t ii, jj, kk;
 347         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 348         uint32_t idxL, idxR;
 349         uint32_t numPdGainsUsed = 0;
 350         /*
 351          * If desired to support -ve power levels in future, just
 352          * change pwr_I_0 to signed 5-bits.
 353          */
 354         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 355         /* to accomodate -ve power levels later on. */
 356         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 357         /* to accomodate -ve power levels later on */
 358         uint16_t numVpd = 0;
 359         uint16_t Vpd_step;
 360         int16_t tmpVal ;
 361         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 362
 363         /* Get upper lower index */
 364         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 365                                  pRawDataset->numChannels, &(idxL), &(idxR));
 366
 367         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 368                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 369                 /* work backwards 'cause highest pdGain for lowest power */
 370                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 371                 if (numVpd > 0) {
 372                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 373                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 374                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 375                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 376                         }
 377                         Pmin_t2[numPdGainsUsed] = (int16_t)
 378                                 (Pmin_t2[numPdGainsUsed] / 2);
 379                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 380                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 381                                 Pmax_t2[numPdGainsUsed] =
 382                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 383                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 384                         ar2317FillVpdTable(
 385                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 386                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 387                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 388                                            );
 389                         ar2317FillVpdTable(
 390                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 391                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 392                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 393                                            );
 394                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 395                                 VpdTable_I[numPdGainsUsed][kk] =
 396                                         interpolate_signed(
 397                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 398                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 399                         }
 400                         /* fill VpdTable_I for this pdGain */
 401                         numPdGainsUsed++;
 402                 }
 403                 /* if this pdGain is used */
 404         }
 405
 406         *pMinCalPower = Pmin_t2[0];
 407         kk = 0; /* index for the final table */
 408         for (ii = 0; ii < numPdGainsUsed; ii++) {
 409                 if (ii == (numPdGainsUsed - 1))
 410                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 411                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 412                 else
 413                         pPdGainBoundaries[ii] = (uint16_t)
 414                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 415                 if (pPdGainBoundaries[ii] > 63) {
 416                         HALDEBUG(ah, HAL_DEBUG_ANY,
 417                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 418                            __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 419                         pPdGainBoundaries[ii] = 63;
 420                 }
 421
 422                 /* Find starting index for this pdGain */
 423                 if (ii == 0)
 424                         ss = 0; /* for the first pdGain, start from index 0 */
 425                 else
 426                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 427                                 pdGainOverlap_t2;
 428                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 429                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 430                 /*
 431                  *-ve ss indicates need to extrapolate data below for this pdGain
 432                  */
 433                 while (ss < 0) {
 434                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 435                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 436                         ss++;
 437                 }
 438
 439                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 440                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 441                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 442
 443                 while (ss < (int16_t)maxIndex)
 444                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 445
 446                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 447                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 448                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 449                 /*
 450                  * for last gain, pdGainBoundary == Pmax_t2, so will
 451                  * have to extrapolate
 452                  */
 453                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 454                         while(ss < (int16_t)tgtIndex) {
 455                                 tmpVal = (uint16_t)
 456                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 457                                          (ss-maxIndex)*Vpd_step);
 458                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 459                                         127 : tmpVal;
 460                                 ss++;
 461                         }
 462                 }                               /* extrapolated above */
 463         }                                       /* for all pdGainUsed */
 464
 465         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 466                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 467                 ii++;
 468         }
 469         while (kk < 128) {
 470                 pPDADCValues[kk] = pPDADCValues[kk-1];
 471                 kk++;
 472         }
 473
 474         return numPdGainsUsed;
 475 #undef VpdTable_L
 476 #undef VpdTable_R
 477 #undef VpdTable_I
 478 }
 479
 480 static HAL_BOOL
 481 ar2317SetPowerTable(struct ath_hal *ah,
 482         int16_t *minPower, int16_t *maxPower,
 483         const struct ieee80211_channel *chan,
 484         uint16_t *rfXpdGain)
 485 {
 486         struct ath_hal_5212 *ahp = AH5212(ah);
 487         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 488         const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
 489         uint16_t pdGainOverlap_t2;
 490         int16_t minCalPower2317_t2;
 491         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 492         uint16_t gainBoundaries[4];
 493         uint32_t reg32, regoffset;
 494         int i, numPdGainsUsed;
 495 #ifndef AH_USE_INIPDGAIN
 496         uint32_t tpcrg1;
 497 #endif
 498
 499         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 500             __func__, chan->ic_freq, chan->ic_flags);
 501
 502         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 503                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 504         else if (IEEE80211_IS_CHAN_B(chan))
 505                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 506         else {
 507                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 508                 return AH_FALSE;
 509         }
 510
 511         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 512                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 513
 514         numPdGainsUsed = ar2317getGainBoundariesAndPdadcsForPowers(ah,
 515                 chan->channel, pRawDataset, pdGainOverlap_t2,
 516                 &minCalPower2317_t2,gainBoundaries, rfXpdGain, pdadcValues);
 517         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 518
 519 #ifdef AH_USE_INIPDGAIN
 520         /*
 521          * Use pd_gains curve from eeprom; Atheros always uses
 522          * the default curve from the ini file but some vendors
 523          * (e.g. Zcomax) want to override this curve and not
 524          * honoring their settings results in tx power 5dBm low.
 525          */
 526         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 527                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 528 #else
 529         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 530         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 531                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 532         switch (numPdGainsUsed) {
 533         case 3:
 534                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 535                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 536                 /* fall thru... */
 537         case 2:
 538                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 539                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 540                 /* fall thru... */
 541         case 1:
 542                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 543                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 544                 break;
 545         }
 546 #ifdef AH_DEBUG
 547         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 548                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 549                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 550                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 551 #endif
 552         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 553 #endif
 554
 555         /*
 556          * Note the pdadc table may not start at 0 dBm power, could be
 557          * negative or greater than 0.  Need to offset the power
 558          * values by the amount of minPower for griffin
 559          */
 560         if (minCalPower2317_t2 != 0)
 561                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2317_t2);
 562         else
 563                 ahp->ah_txPowerIndexOffset = 0;
 564
 565         /* Finally, write the power values into the baseband power table */
 566         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 567         for (i = 0; i < 32; i++) {
 568                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 569                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 570                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 571                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 572                 OS_REG_WRITE(ah, regoffset, reg32);
 573                 regoffset += 4;
 574         }
 575
 576         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 577                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 578                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 579                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 580                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 581                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 582
 583         return AH_TRUE;
 584 }
 585
 586 static int16_t
 587 ar2317GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
 588 {
 589         uint32_t ii,jj;
 590         uint16_t Pmin=0,numVpd;
 591
 592         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 593                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 594                 /* work backwards 'cause highest pdGain for lowest power */
 595                 numVpd = data->pDataPerPDGain[jj].numVpd;
 596                 if (numVpd > 0) {
 597                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 598                         return(Pmin);
 599                 }
 600         }
 601         return(Pmin);
 602 }
 603
 604 static int16_t
 605 ar2317GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
 606 {
 607         uint32_t ii;
 608         uint16_t Pmax=0,numVpd;
 609         uint16_t vpdmax;
 610
 611         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 612                 /* work forwards cuase lowest pdGain for highest power */
 613                 numVpd = data->pDataPerPDGain[ii].numVpd;
 614                 if (numVpd > 0) {
 615                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 616                         vpdmax = data->pDataPerPDGain[ii].Vpd[numVpd-1];
 617                         return(Pmax);
 618                 }
 619         }
 620         return(Pmax);
 621 }
 622
 623 static HAL_BOOL
 624 ar2317GetChannelMaxMinPower(struct ath_hal *ah,
 625         const struct ieee80211_channel *chan,
 626         int16_t *maxPow, int16_t *minPow)
 627 {
 628         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 629         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 630         const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
 631         const RAW_DATA_PER_CHANNEL_2317 *data=AH_NULL;
 632         uint16_t numChannels;
 633         int totalD,totalF, totalMin,last, i;
 634
 635         *maxPow = 0;
 636
 637         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 638                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 639         else if (IEEE80211_IS_CHAN_B(chan))
 640                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 641         else
 642                 return(AH_FALSE);
 643
 644         numChannels = pRawDataset->numChannels;
 645         data = pRawDataset->pDataPerChannel;
 646
 647         /* Make sure the channel is in the range of the TP values
 648          *  (freq piers)
 649          */
 650         if (numChannels < 1)
 651                 return(AH_FALSE);
 652
 653         if ((freq < data[0].channelValue) ||
 654             (freq > data[numChannels-1].channelValue)) {
 655                 if (freq < data[0].channelValue) {
 656                         *maxPow = ar2317GetMaxPower(ah, &data[0]);
 657                         *minPow = ar2317GetMinPower(ah, &data[0]);
 658                         return(AH_TRUE);
 659                 } else {
 660                         *maxPow = ar2317GetMaxPower(ah, &data[numChannels - 1]);
 661                         *minPow = ar2317GetMinPower(ah, &data[numChannels - 1]);
 662                         return(AH_TRUE);
 663                 }
 664         }
 665
 666         /* Linearly interpolate the power value now */
 667         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 668              last = i++);
 669         totalD = data[i].channelValue - data[last].channelValue;
 670         if (totalD > 0) {
 671                 totalF = ar2317GetMaxPower(ah, &data[i]) - ar2317GetMaxPower(ah, &data[last]);
 672                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 673                                      ar2317GetMaxPower(ah, &data[last])*totalD)/totalD);
 674                 totalMin = ar2317GetMinPower(ah, &data[i]) - ar2317GetMinPower(ah, &data[last]);
 675                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 676                                      ar2317GetMinPower(ah, &data[last])*totalD)/totalD);
 677                 return(AH_TRUE);
 678         } else {
 679                 if (freq == data[i].channelValue) {
 680                         *maxPow = ar2317GetMaxPower(ah, &data[i]);
 681                         *minPow = ar2317GetMinPower(ah, &data[i]);
 682                         return(AH_TRUE);
 683                 } else
 684                         return(AH_FALSE);
 685         }
 686 }
 687
 688 /*
 689  * Free memory for analog bank scratch buffers
 690  */
 691 static void
 692 ar2317RfDetach(struct ath_hal *ah)
 693 {
 694         struct ath_hal_5212 *ahp = AH5212(ah);
 695
 696         HALASSERT(ahp->ah_rfHal != AH_NULL);
 697         ath_hal_free(ahp->ah_rfHal);
 698         ahp->ah_rfHal = AH_NULL;
 699 }
 700
 701 /*
 702  * Allocate memory for analog bank scratch buffers
 703  * Scratch Buffer will be reinitialized every reset so no need to zero now
 704  */
 705 static HAL_BOOL
 706 ar2317RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 707 {
 708         struct ath_hal_5212 *ahp = AH5212(ah);
 709         struct ar2317State *priv;
 710
 711         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 712
 713         HALASSERT(ahp->ah_rfHal == AH_NULL);
 714         priv = ath_hal_malloc(sizeof(struct ar2317State));
 715         if (priv == AH_NULL) {
 716                 HALDEBUG(ah, HAL_DEBUG_ANY,
 717                     "%s: cannot allocate private state\n", __func__);
 718                 *status = HAL_ENOMEM;           /* XXX */
 719                 return AH_FALSE;
 720         }
 721         priv->base.rfDetach             = ar2317RfDetach;
 722         priv->base.writeRegs            = ar2317WriteRegs;
 723         priv->base.getRfBank            = ar2317GetRfBank;
 724         priv->base.setChannel           = ar2317SetChannel;
 725         priv->base.setRfRegs            = ar2317SetRfRegs;
 726         priv->base.setPowerTable        = ar2317SetPowerTable;
 727         priv->base.getChannelMaxMinPower = ar2317GetChannelMaxMinPower;
 728         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 729
 730         ahp->ah_pcdacTable = priv->pcdacTable;
 731         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 732         ahp->ah_rfHal = &priv->base;
 733
 734         return AH_TRUE;
 735 }
 736
 737 static HAL_BOOL
 738 ar2317Probe(struct ath_hal *ah)
 739 {
 740         return IS_2317(ah);
 741 }
 742 AH_RF(RF2317, ar2317Probe, ar2317RfAttach);