sys/dev/ath/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  * $FreeBSD$
  18  */
  19 #include "opt_ah.h"
  20
  21 #include "ah.h"
  22 #include "ah_internal.h"
  23
  24 #include "ar5212/ar5212.h"
  25 #include "ar5212/ar5212reg.h"
  26 #include "ar5212/ar5212phy.h"
  27
  28 #include "ah_eeprom_v3.h"
  29
  30 #define AH_5212_2317
  31 #include "ar5212/ar5212.ini"
  32
  33 #define N(a)    (sizeof(a)/sizeof(a[0]))
  34
  35 typedef RAW_DATA_STRUCT_2413 RAW_DATA_STRUCT_2317;
  36 typedef RAW_DATA_PER_CHANNEL_2413 RAW_DATA_PER_CHANNEL_2317;
  37 #define PWR_TABLE_SIZE_2317 PWR_TABLE_SIZE_2413
  38
  39 struct ar2317State {
  40         RF_HAL_FUNCS    base;           /* public state, must be first */
  41         uint16_t        pcdacTable[PWR_TABLE_SIZE_2317];
  42
  43         uint32_t        Bank1Data[N(ar5212Bank1_2317)];
  44         uint32_t        Bank2Data[N(ar5212Bank2_2317)];
  45         uint32_t        Bank3Data[N(ar5212Bank3_2317)];
  46         uint32_t        Bank6Data[N(ar5212Bank6_2317)];
  47         uint32_t        Bank7Data[N(ar5212Bank7_2317)];
  48
  49         /*
  50          * Private state for reduced stack usage.
  51          */
  52         /* filled out Vpd table for all pdGains (chanL) */
  53         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  54                             [MAX_PWR_RANGE_IN_HALF_DB];
  55         /* filled out Vpd table for all pdGains (chanR) */
  56         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  57                             [MAX_PWR_RANGE_IN_HALF_DB];
  58         /* filled out Vpd table for all pdGains (interpolated) */
  59         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  60                             [MAX_PWR_RANGE_IN_HALF_DB];
  61 };
  62 #define AR2317(ah)      ((struct ar2317State *) AH5212(ah)->ah_rfHal)
  63
  64 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  65                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  66
  67 static void
  68 ar2317WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  69         int writes)
  70 {
  71         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2317, modesIndex, writes);
  72         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2317, 1, writes);
  73         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2317, freqIndex, writes);
  74 }
  75
  76 /*
  77  * Take the MHz channel value and set the Channel value
  78  *
  79  * ASSUMES: Writes enabled to analog bus
  80  */
  81 static HAL_BOOL
  82 ar2317SetChannel(struct ath_hal *ah,  const struct ieee80211_channel *chan)
  83 {
  84         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  85         uint32_t channelSel  = 0;
  86         uint32_t bModeSynth  = 0;
  87         uint32_t aModeRefSel = 0;
  88         uint32_t reg32       = 0;
  89
  90         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  91
  92         if (freq < 4800) {
  93                 uint32_t txctl;
  94                 channelSel = freq - 2272 ;
  95                 channelSel = ath_hal_reverseBits(channelSel, 8);
  96
  97                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
  98                 if (freq == 2484) {
  99                         /* Enable channel spreading for channel 14 */
 100                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 101                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 102                 } else {
 103                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 104                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 105                 }
 106         } else if ((freq % 20) == 0 && freq >= 5120) {
 107                 channelSel = ath_hal_reverseBits(
 108                         ((freq - 4800) / 20 << 2), 8);
 109                 aModeRefSel = ath_hal_reverseBits(3, 2);
 110         } else if ((freq % 10) == 0) {
 111                 channelSel = ath_hal_reverseBits(
 112                         ((freq - 4800) / 10 << 1), 8);
 113                 aModeRefSel = ath_hal_reverseBits(2, 2);
 114         } else if ((freq % 5) == 0) {
 115                 channelSel = ath_hal_reverseBits(
 116                         (freq - 4800) / 5, 8);
 117                 aModeRefSel = ath_hal_reverseBits(1, 2);
 118         } else {
 119                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 120                     __func__, freq);
 121                 return AH_FALSE;
 122         }
 123
 124         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 125                         (1 << 12) | 0x1;
 126         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 127
 128         reg32 >>= 8;
 129         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 130
 131         AH_PRIVATE(ah)->ah_curchan = chan;
 132         return AH_TRUE;
 133 }
 134
 135 /*
 136  * Reads EEPROM header info from device structure and programs
 137  * all rf registers
 138  *
 139  * REQUIRES: Access to the analog rf device
 140  */
 141 static HAL_BOOL
 142 ar2317SetRfRegs(struct ath_hal *ah,
 143         const struct ieee80211_channel *chan,
 144         uint16_t modesIndex, uint16_t *rfXpdGain)
 145 {
 146 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 147         int i;                                                              \
 148         for (i = 0; i < N(ar5212Bank##_ix##_2317); i++)                     \
 149                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2317[i][_col];\
 150 } while (0)
 151         struct ath_hal_5212 *ahp = AH5212(ah);
 152         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 153         uint16_t ob2GHz = 0, db2GHz = 0;
 154         struct ar2317State *priv = AR2317(ah);
 155         int regWrites = 0;
 156
 157         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 158             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 159
 160         HALASSERT(priv);
 161
 162         /* Setup rf parameters */
 163         if (IEEE80211_IS_CHAN_B(chan)) {
 164                 ob2GHz = ee->ee_obFor24;
 165                 db2GHz = ee->ee_dbFor24;
 166         } else {
 167                 ob2GHz = ee->ee_obFor24g;
 168                 db2GHz = ee->ee_dbFor24g;
 169         }
 170
 171         /* Bank 1 Write */
 172         RF_BANK_SETUP(priv, 1, 1);
 173
 174         /* Bank 2 Write */
 175         RF_BANK_SETUP(priv, 2, modesIndex);
 176
 177         /* Bank 3 Write */
 178         RF_BANK_SETUP(priv, 3, modesIndex);
 179
 180         /* Bank 6 Write */
 181         RF_BANK_SETUP(priv, 6, modesIndex);
 182
 183         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 193, 0);
 184         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 190, 0);
 185
 186         /* Bank 7 Setup */
 187         RF_BANK_SETUP(priv, 7, modesIndex);
 188
 189         /* Write Analog registers */
 190         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2317, priv->Bank1Data, regWrites);
 191         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2317, priv->Bank2Data, regWrites);
 192         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2317, priv->Bank3Data, regWrites);
 193         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2317, priv->Bank6Data, regWrites);
 194         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2317, priv->Bank7Data, regWrites);
 195         /* Now that we have reprogrammed rfgain value, clear the flag. */
 196         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 197
 198         return AH_TRUE;
 199 #undef  RF_BANK_SETUP
 200 }
 201
 202 /*
 203  * Return a reference to the requested RF Bank.
 204  */
 205 static uint32_t *
 206 ar2317GetRfBank(struct ath_hal *ah, int bank)
 207 {
 208         struct ar2317State *priv = AR2317(ah);
 209
 210         HALASSERT(priv != AH_NULL);
 211         switch (bank) {
 212         case 1: return priv->Bank1Data;
 213         case 2: return priv->Bank2Data;
 214         case 3: return priv->Bank3Data;
 215         case 6: return priv->Bank6Data;
 216         case 7: return priv->Bank7Data;
 217         }
 218         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 219             __func__, bank);
 220         return AH_NULL;
 221 }
 222
 223 /*
 224  * Return indices surrounding the value in sorted integer lists.
 225  *
 226  * NB: the input list is assumed to be sorted in ascending order
 227  */
 228 static void
 229 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 230                           uint32_t *vlo, uint32_t *vhi)
 231 {
 232         int16_t target = v;
 233         const int16_t *ep = lp+listSize;
 234         const int16_t *tp;
 235
 236         /*
 237          * Check first and last elements for out-of-bounds conditions.
 238          */
 239         if (target < lp[0]) {
 240                 *vlo = *vhi = 0;
 241                 return;
 242         }
 243         if (target >= ep[-1]) {
 244                 *vlo = *vhi = listSize - 1;
 245                 return;
 246         }
 247
 248         /* look for value being near or between 2 values in list */
 249         for (tp = lp; tp < ep; tp++) {
 250                 /*
 251                  * If value is close to the current value of the list
 252                  * then target is not between values, it is one of the values
 253                  */
 254                 if (*tp == target) {
 255                         *vlo = *vhi = tp - (const int16_t *) lp;
 256                         return;
 257                 }
 258                 /*
 259                  * Look for value being between current value and next value
 260                  * if so return these 2 values
 261                  */
 262                 if (target < tp[1]) {
 263                         *vlo = tp - (const int16_t *) lp;
 264                         *vhi = *vlo + 1;
 265                         return;
 266                 }
 267         }
 268 }
 269
 270 /*
 271  * Fill the Vpdlist for indices Pmax-Pmin
 272  */
 273 static HAL_BOOL
 274 ar2317FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 275                    const int16_t *pwrList, const int16_t *VpdList,
 276                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 277 {
 278         uint16_t ii, jj, kk;
 279         int16_t currPwr = (int16_t)(2*Pmin);
 280         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 281         uint32_t  idxL, idxR;
 282
 283         ii = 0;
 284         jj = 0;
 285
 286         if (numIntercepts < 2)
 287                 return AH_FALSE;
 288
 289         while (ii <= (uint16_t)(Pmax - Pmin)) {
 290                 GetLowerUpperIndex(currPwr, pwrList, numIntercepts,
 291                                          &(idxL), &(idxR));
 292                 if (idxR < 1)
 293                         idxR = 1;                       /* extrapolate below */
 294                 if (idxL == (uint32_t)(numIntercepts - 1))
 295                         idxL = numIntercepts - 2;       /* extrapolate above */
 296                 if (pwrList[idxL] == pwrList[idxR])
 297                         kk = VpdList[idxL];
 298                 else
 299                         kk = (uint16_t)
 300                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 301                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 302                                  (pwrList[idxR] - pwrList[idxL]));
 303                 retVpdList[pdGainIdx][ii] = kk;
 304                 ii++;
 305                 currPwr += 2;                           /* half dB steps */
 306         }
 307
 308         return AH_TRUE;
 309 }
 310
 311 /*
 312  * Returns interpolated or the scaled up interpolated value
 313  */
 314 static int16_t
 315 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 316         int16_t targetLeft, int16_t targetRight)
 317 {
 318         int16_t rv;
 319
 320         if (srcRight != srcLeft) {
 321                 rv = ((target - srcLeft)*targetRight +
 322                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 323         } else {
 324                 rv = targetLeft;
 325         }
 326         return rv;
 327 }
 328
 329 /*
 330  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 331  * Called by ar2317SetPowerTable()
 332  */
 333 static int
 334 ar2317getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 335                 const RAW_DATA_STRUCT_2317 *pRawDataset,
 336                 uint16_t pdGainOverlap_t2,
 337                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 338                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 339 {
 340         struct ar2317State *priv = AR2317(ah);
 341 #define VpdTable_L      priv->vpdTable_L
 342 #define VpdTable_R      priv->vpdTable_R
 343 #define VpdTable_I      priv->vpdTable_I
 344         /* XXX excessive stack usage? */
 345         uint32_t ii, jj, kk;
 346         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 347         uint32_t idxL, idxR;
 348         uint32_t numPdGainsUsed = 0;
 349         /*
 350          * If desired to support -ve power levels in future, just
 351          * change pwr_I_0 to signed 5-bits.
 352          */
 353         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 354         /* to accomodate -ve power levels later on. */
 355         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 356         /* to accomodate -ve power levels later on */
 357         uint16_t numVpd = 0;
 358         uint16_t Vpd_step;
 359         int16_t tmpVal ;
 360         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 361
 362         /* Get upper lower index */
 363         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 364                                  pRawDataset->numChannels, &(idxL), &(idxR));
 365
 366         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 367                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 368                 /* work backwards 'cause highest pdGain for lowest power */
 369                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 370                 if (numVpd > 0) {
 371                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 372                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 373                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 374                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 375                         }
 376                         Pmin_t2[numPdGainsUsed] = (int16_t)
 377                                 (Pmin_t2[numPdGainsUsed] / 2);
 378                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 379                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 380                                 Pmax_t2[numPdGainsUsed] =
 381                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 382                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 383                         ar2317FillVpdTable(
 384                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 385                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 386                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 387                                            );
 388                         ar2317FillVpdTable(
 389                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 390                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 391                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 392                                            );
 393                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 394                                 VpdTable_I[numPdGainsUsed][kk] =
 395                                         interpolate_signed(
 396                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 397                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 398                         }
 399                         /* fill VpdTable_I for this pdGain */
 400                         numPdGainsUsed++;
 401                 }
 402                 /* if this pdGain is used */
 403         }
 404
 405         *pMinCalPower = Pmin_t2[0];
 406         kk = 0; /* index for the final table */
 407         for (ii = 0; ii < numPdGainsUsed; ii++) {
 408                 if (ii == (numPdGainsUsed - 1))
 409                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 410                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 411                 else
 412                         pPdGainBoundaries[ii] = (uint16_t)
 413                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 414                 if (pPdGainBoundaries[ii] > 63) {
 415                         HALDEBUG(ah, HAL_DEBUG_ANY,
 416                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 417                            __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 418                         pPdGainBoundaries[ii] = 63;
 419                 }
 420
 421                 /* Find starting index for this pdGain */
 422                 if (ii == 0)
 423                         ss = 0; /* for the first pdGain, start from index 0 */
 424                 else
 425                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 426                                 pdGainOverlap_t2;
 427                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 428                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 429                 /*
 430                  *-ve ss indicates need to extrapolate data below for this pdGain
 431                  */
 432                 while (ss < 0) {
 433                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 434                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 435                         ss++;
 436                 }
 437
 438                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 439                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 440                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 441
 442                 while (ss < (int16_t)maxIndex)
 443                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 444
 445                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 446                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 447                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 448                 /*
 449                  * for last gain, pdGainBoundary == Pmax_t2, so will
 450                  * have to extrapolate
 451                  */
 452                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 453                         while(ss < (int16_t)tgtIndex) {
 454                                 tmpVal = (uint16_t)
 455                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 456                                          (ss-maxIndex)*Vpd_step);
 457                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 458                                         127 : tmpVal;
 459                                 ss++;
 460                         }
 461                 }                               /* extrapolated above */
 462         }                                       /* for all pdGainUsed */
 463
 464         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 465                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 466                 ii++;
 467         }
 468         while (kk < 128) {
 469                 pPDADCValues[kk] = pPDADCValues[kk-1];
 470                 kk++;
 471         }
 472
 473         return numPdGainsUsed;
 474 #undef VpdTable_L
 475 #undef VpdTable_R
 476 #undef VpdTable_I
 477 }
 478
 479 static HAL_BOOL
 480 ar2317SetPowerTable(struct ath_hal *ah,
 481         int16_t *minPower, int16_t *maxPower,
 482         const struct ieee80211_channel *chan,
 483         uint16_t *rfXpdGain)
 484 {
 485         struct ath_hal_5212 *ahp = AH5212(ah);
 486         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 487         const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
 488         uint16_t pdGainOverlap_t2;
 489         int16_t minCalPower2317_t2;
 490         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 491         uint16_t gainBoundaries[4];
 492         uint32_t reg32, regoffset;
 493         int i, numPdGainsUsed;
 494 #ifndef AH_USE_INIPDGAIN
 495         uint32_t tpcrg1;
 496 #endif
 497
 498         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 499             __func__, chan->ic_freq, chan->ic_flags);
 500
 501         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 502                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 503         else if (IEEE80211_IS_CHAN_B(chan))
 504                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 505         else {
 506                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 507                 return AH_FALSE;
 508         }
 509
 510         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 511                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 512
 513         numPdGainsUsed = ar2317getGainBoundariesAndPdadcsForPowers(ah,
 514                 chan->channel, pRawDataset, pdGainOverlap_t2,
 515                 &minCalPower2317_t2,gainBoundaries, rfXpdGain, pdadcValues);
 516         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 517
 518 #ifdef AH_USE_INIPDGAIN
 519         /*
 520          * Use pd_gains curve from eeprom; Atheros always uses
 521          * the default curve from the ini file but some vendors
 522          * (e.g. Zcomax) want to override this curve and not
 523          * honoring their settings results in tx power 5dBm low.
 524          */
 525         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 526                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 527 #else
 528         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 529         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 530                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 531         switch (numPdGainsUsed) {
 532         case 3:
 533                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 534                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 535                 /* fall thru... */
 536         case 2:
 537                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 538                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 539                 /* fall thru... */
 540         case 1:
 541                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 542                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 543                 break;
 544         }
 545 #ifdef AH_DEBUG
 546         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 547                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 548                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 549                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 550 #endif
 551         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 552 #endif
 553
 554         /*
 555          * Note the pdadc table may not start at 0 dBm power, could be
 556          * negative or greater than 0.  Need to offset the power
 557          * values by the amount of minPower for griffin
 558          */
 559         if (minCalPower2317_t2 != 0)
 560                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2317_t2);
 561         else
 562                 ahp->ah_txPowerIndexOffset = 0;
 563
 564         /* Finally, write the power values into the baseband power table */
 565         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 566         for (i = 0; i < 32; i++) {
 567                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 568                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 569                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 570                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 571                 OS_REG_WRITE(ah, regoffset, reg32);
 572                 regoffset += 4;
 573         }
 574
 575         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 576                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 577                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 578                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 579                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 580                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 581
 582         return AH_TRUE;
 583 }
 584
 585 static int16_t
 586 ar2317GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
 587 {
 588         uint32_t ii,jj;
 589         uint16_t Pmin=0,numVpd;
 590
 591         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 592                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 593                 /* work backwards 'cause highest pdGain for lowest power */
 594                 numVpd = data->pDataPerPDGain[jj].numVpd;
 595                 if (numVpd > 0) {
 596                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 597                         return(Pmin);
 598                 }
 599         }
 600         return(Pmin);
 601 }
 602
 603 static int16_t
 604 ar2317GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
 605 {
 606         uint32_t ii;
 607         uint16_t Pmax=0,numVpd;
 608         uint16_t vpdmax;
 609
 610         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 611                 /* work forwards cuase lowest pdGain for highest power */
 612                 numVpd = data->pDataPerPDGain[ii].numVpd;
 613                 if (numVpd > 0) {
 614                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 615                         vpdmax = data->pDataPerPDGain[ii].Vpd[numVpd-1];
 616                         return(Pmax);
 617                 }
 618         }
 619         return(Pmax);
 620 }
 621
 622 static HAL_BOOL
 623 ar2317GetChannelMaxMinPower(struct ath_hal *ah,
 624         const struct ieee80211_channel *chan,
 625         int16_t *maxPow, int16_t *minPow)
 626 {
 627         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 628         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 629         const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
 630         const RAW_DATA_PER_CHANNEL_2317 *data=AH_NULL;
 631         uint16_t numChannels;
 632         int totalD,totalF, totalMin,last, i;
 633
 634         *maxPow = 0;
 635
 636         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 637                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 638         else if (IEEE80211_IS_CHAN_B(chan))
 639                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 640         else
 641                 return(AH_FALSE);
 642
 643         numChannels = pRawDataset->numChannels;
 644         data = pRawDataset->pDataPerChannel;
 645
 646         /* Make sure the channel is in the range of the TP values
 647          *  (freq piers)
 648          */
 649         if (numChannels < 1)
 650                 return(AH_FALSE);
 651
 652         if ((freq < data[0].channelValue) ||
 653             (freq > data[numChannels-1].channelValue)) {
 654                 if (freq < data[0].channelValue) {
 655                         *maxPow = ar2317GetMaxPower(ah, &data[0]);
 656                         *minPow = ar2317GetMinPower(ah, &data[0]);
 657                         return(AH_TRUE);
 658                 } else {
 659                         *maxPow = ar2317GetMaxPower(ah, &data[numChannels - 1]);
 660                         *minPow = ar2317GetMinPower(ah, &data[numChannels - 1]);
 661                         return(AH_TRUE);
 662                 }
 663         }
 664
 665         /* Linearly interpolate the power value now */
 666         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 667              last = i++);
 668         totalD = data[i].channelValue - data[last].channelValue;
 669         if (totalD > 0) {
 670                 totalF = ar2317GetMaxPower(ah, &data[i]) - ar2317GetMaxPower(ah, &data[last]);
 671                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 672                                      ar2317GetMaxPower(ah, &data[last])*totalD)/totalD);
 673                 totalMin = ar2317GetMinPower(ah, &data[i]) - ar2317GetMinPower(ah, &data[last]);
 674                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 675                                      ar2317GetMinPower(ah, &data[last])*totalD)/totalD);
 676                 return(AH_TRUE);
 677         } else {
 678                 if (freq == data[i].channelValue) {
 679                         *maxPow = ar2317GetMaxPower(ah, &data[i]);
 680                         *minPow = ar2317GetMinPower(ah, &data[i]);
 681                         return(AH_TRUE);
 682                 } else
 683                         return(AH_FALSE);
 684         }
 685 }
 686
 687 /*
 688  * Free memory for analog bank scratch buffers
 689  */
 690 static void
 691 ar2317RfDetach(struct ath_hal *ah)
 692 {
 693         struct ath_hal_5212 *ahp = AH5212(ah);
 694
 695         HALASSERT(ahp->ah_rfHal != AH_NULL);
 696         ath_hal_free(ahp->ah_rfHal);
 697         ahp->ah_rfHal = AH_NULL;
 698 }
 699
 700 /*
 701  * Allocate memory for analog bank scratch buffers
 702  * Scratch Buffer will be reinitialized every reset so no need to zero now
 703  */
 704 static HAL_BOOL
 705 ar2317RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 706 {
 707         struct ath_hal_5212 *ahp = AH5212(ah);
 708         struct ar2317State *priv;
 709
 710         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 711
 712         HALASSERT(ahp->ah_rfHal == AH_NULL);
 713         priv = ath_hal_malloc(sizeof(struct ar2317State));
 714         if (priv == AH_NULL) {
 715                 HALDEBUG(ah, HAL_DEBUG_ANY,
 716                     "%s: cannot allocate private state\n", __func__);
 717                 *status = HAL_ENOMEM;           /* XXX */
 718                 return AH_FALSE;
 719         }
 720         priv->base.rfDetach             = ar2317RfDetach;
 721         priv->base.writeRegs            = ar2317WriteRegs;
 722         priv->base.getRfBank            = ar2317GetRfBank;
 723         priv->base.setChannel           = ar2317SetChannel;
 724         priv->base.setRfRegs            = ar2317SetRfRegs;
 725         priv->base.setPowerTable        = ar2317SetPowerTable;
 726         priv->base.getChannelMaxMinPower = ar2317GetChannelMaxMinPower;
 727         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 728
 729         ahp->ah_pcdacTable = priv->pcdacTable;
 730         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 731         ahp->ah_rfHal = &priv->base;
 732
 733         return AH_TRUE;
 734 }
 735
 736 static HAL_BOOL
 737 ar2317Probe(struct ath_hal *ah)
 738 {
 739         return IS_2317(ah);
 740 }
 741 AH_RF(RF2317, ar2317Probe, ar2317RfAttach);