sys/dev/netif/ath/hal/ath_hal/ar5212/ar5413.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/ar5413.c 188979 2009-02-24 01:07:06Z sam $
  18  * $DragonFly$
  19  */
  20 #include "opt_ah.h"
  21
  22 #include "ah.h"
  23 #include "ah_internal.h"
  24
  25 #include "ah_eeprom_v3.h"
  26
  27 #include "ar5212/ar5212.h"
  28 #include "ar5212/ar5212reg.h"
  29 #include "ar5212/ar5212phy.h"
  30
  31 #define AH_5212_5413
  32 #include "ar5212/ar5212.ini"
  33
  34 struct ar5413State {
  35         RF_HAL_FUNCS    base;           /* public state, must be first */
  36         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  37
  38         uint32_t        Bank1Data[NELEM(ar5212Bank1_5413)];
  39         uint32_t        Bank2Data[NELEM(ar5212Bank2_5413)];
  40         uint32_t        Bank3Data[NELEM(ar5212Bank3_5413)];
  41         uint32_t        Bank6Data[NELEM(ar5212Bank6_5413)];
  42         uint32_t        Bank7Data[NELEM(ar5212Bank7_5413)];
  43
  44         /*
  45          * Private state for reduced stack usage.
  46          */
  47         /* filled out Vpd table for all pdGains (chanL) */
  48         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  49                             [MAX_PWR_RANGE_IN_HALF_DB];
  50         /* filled out Vpd table for all pdGains (chanR) */
  51         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  52                             [MAX_PWR_RANGE_IN_HALF_DB];
  53         /* filled out Vpd table for all pdGains (interpolated) */
  54         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  55                             [MAX_PWR_RANGE_IN_HALF_DB];
  56 };
  57 #define AR5413(ah)      ((struct ar5413State *) AH5212(ah)->ah_rfHal)
  58
  59 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  60                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  61
  62 static void
  63 ar5413WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  64         int writes)
  65 {
  66         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_5413, modesIndex, writes);
  67         HAL_INI_WRITE_ARRAY(ah, ar5212Common_5413, 1, writes);
  68         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_5413, freqIndex, writes);
  69 }
  70
  71 /*
  72  * Take the MHz channel value and set the Channel value
  73  *
  74  * ASSUMES: Writes enabled to analog bus
  75  */
  76 static HAL_BOOL
  77 ar5413SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
  78 {
  79         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  80         uint32_t channelSel  = 0;
  81         uint32_t bModeSynth  = 0;
  82         uint32_t aModeRefSel = 0;
  83         uint32_t reg32       = 0;
  84
  85         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  86
  87         if (freq < 4800) {
  88                 uint32_t txctl;
  89
  90                 if (((freq - 2192) % 5) == 0) {
  91                         channelSel = ((freq - 672) * 2 - 3040)/10;
  92                         bModeSynth = 0;
  93                 } else if (((freq - 2224) % 5) == 0) {
  94                         channelSel = ((freq - 704) * 2 - 3040) / 10;
  95                         bModeSynth = 1;
  96                 } else {
  97                         HALDEBUG(ah, HAL_DEBUG_ANY,
  98                             "%s: invalid channel %u MHz\n",
  99                             __func__, freq);
 100                         return AH_FALSE;
 101                 }
 102
 103                 channelSel = (channelSel << 2) & 0xff;
 104                 channelSel = ath_hal_reverseBits(channelSel, 8);
 105
 106                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 107                 if (freq == 2484) {
 108                         /* Enable channel spreading for channel 14 */
 109                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 110                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 111                 } else {
 112                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 113                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 114                 }
 115         } else if (((freq % 5) == 2) && (freq <= 5435)) {
 116                 freq = freq - 2; /* Align to even 5MHz raster */
 117                 channelSel = ath_hal_reverseBits(
 118                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 119                 aModeRefSel = ath_hal_reverseBits(0, 2);
 120         } else if ((freq % 20) == 0 && freq >= 5120) {
 121                 channelSel = ath_hal_reverseBits(
 122                         ((freq - 4800) / 20 << 2), 8);
 123                 aModeRefSel = ath_hal_reverseBits(1, 2);
 124         } else if ((freq % 10) == 0) {
 125                 channelSel = ath_hal_reverseBits(
 126                         ((freq - 4800) / 10 << 1), 8);
 127                 aModeRefSel = ath_hal_reverseBits(1, 2);
 128         } else if ((freq % 5) == 0) {
 129                 channelSel = ath_hal_reverseBits(
 130                         (freq - 4800) / 5, 8);
 131                 aModeRefSel = ath_hal_reverseBits(1, 2);
 132         } else {
 133                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 134                     __func__, freq);
 135                 return AH_FALSE;
 136         }
 137
 138         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 139                         (1 << 12) | 0x1;
 140         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 141
 142         reg32 >>= 8;
 143         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 144
 145         AH_PRIVATE(ah)->ah_curchan = chan;
 146         return AH_TRUE;
 147 }
 148
 149 /*
 150  * Reads EEPROM header info from device structure and programs
 151  * all rf registers
 152  *
 153  * REQUIRES: Access to the analog rf device
 154  */
 155 static HAL_BOOL
 156 ar5413SetRfRegs(struct ath_hal *ah,
 157         const struct ieee80211_channel *chan,
 158         uint16_t modesIndex, uint16_t *rfXpdGain)
 159 {
 160 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 161         int i;                                                              \
 162         for (i = 0; i < NELEM(ar5212Bank##_ix##_5413); i++)                 \
 163                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_5413[i][_col];\
 164 } while (0)
 165         struct ath_hal_5212 *ahp = AH5212(ah);
 166         uint16_t freq = ath_hal_gethwchannel(ah, chan);
 167         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 168         uint16_t ob5GHz = 0, db5GHz = 0;
 169         uint16_t ob2GHz = 0, db2GHz = 0;
 170         struct ar5413State *priv = AR5413(ah);
 171         int regWrites = 0;
 172
 173         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 174             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 175
 176         HALASSERT(priv != AH_NULL);
 177
 178         /* Setup rf parameters */
 179         switch (chan->ic_flags & IEEE80211_CHAN_ALLFULL) {
 180         case IEEE80211_CHAN_A:
 181                 if (freq > 4000 && freq < 5260) {
 182                         ob5GHz = ee->ee_ob1;
 183                         db5GHz = ee->ee_db1;
 184                 } else if (freq >= 5260 && freq < 5500) {
 185                         ob5GHz = ee->ee_ob2;
 186                         db5GHz = ee->ee_db2;
 187                 } else if (freq >= 5500 && freq < 5725) {
 188                         ob5GHz = ee->ee_ob3;
 189                         db5GHz = ee->ee_db3;
 190                 } else if (freq >= 5725) {
 191                         ob5GHz = ee->ee_ob4;
 192                         db5GHz = ee->ee_db4;
 193                 } else {
 194                         /* XXX else */
 195                 }
 196                 break;
 197         case IEEE80211_CHAN_B:
 198                 ob2GHz = ee->ee_obFor24;
 199                 db2GHz = ee->ee_dbFor24;
 200                 break;
 201         case IEEE80211_CHAN_G:
 202         case IEEE80211_CHAN_PUREG:      /* NB: really 108G */
 203                 ob2GHz = ee->ee_obFor24g;
 204                 db2GHz = ee->ee_dbFor24g;
 205                 break;
 206         default:
 207                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n",
 208                     __func__, chan->ic_flags);
 209                 return AH_FALSE;
 210         }
 211
 212         /* Bank 1 Write */
 213         RF_BANK_SETUP(priv, 1, 1);
 214
 215         /* Bank 2 Write */
 216         RF_BANK_SETUP(priv, 2, modesIndex);
 217
 218         /* Bank 3 Write */
 219         RF_BANK_SETUP(priv, 3, modesIndex);
 220
 221         /* Bank 6 Write */
 222         RF_BANK_SETUP(priv, 6, modesIndex);
 223
 224         /* Only the 5 or 2 GHz OB/DB need to be set for a mode */
 225         if (IEEE80211_IS_CHAN_2GHZ(chan)) {
 226                 ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz, 3, 241, 0);
 227                 ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz, 3, 238, 0);
 228
 229                         /* TODO - only for Eagle 1.0 2GHz - remove for production */
 230                         /* XXX: but without this bit G doesn't work. */
 231                         ar5212ModifyRfBuffer(priv->Bank6Data, 1 , 1, 291, 2);
 232
 233                         /* Optimum value for rf_pwd_iclobuf2G for PCIe chips only */
 234                         if (AH_PRIVATE(ah)->ah_ispcie) {
 235                                 ar5212ModifyRfBuffer(priv->Bank6Data, ath_hal_reverseBits(6, 3),
 236                                                  3, 131, 3);
 237                         }
 238         } else {
 239                 ar5212ModifyRfBuffer(priv->Bank6Data, ob5GHz, 3, 247, 0);
 240                 ar5212ModifyRfBuffer(priv->Bank6Data, db5GHz, 3, 244, 0);
 241
 242         }
 243
 244         /* Bank 7 Setup */
 245         RF_BANK_SETUP(priv, 7, modesIndex);
 246
 247         /* Write Analog registers */
 248         HAL_INI_WRITE_BANK(ah, ar5212Bank1_5413, priv->Bank1Data, regWrites);
 249         HAL_INI_WRITE_BANK(ah, ar5212Bank2_5413, priv->Bank2Data, regWrites);
 250         HAL_INI_WRITE_BANK(ah, ar5212Bank3_5413, priv->Bank3Data, regWrites);
 251         HAL_INI_WRITE_BANK(ah, ar5212Bank6_5413, priv->Bank6Data, regWrites);
 252         HAL_INI_WRITE_BANK(ah, ar5212Bank7_5413, priv->Bank7Data, regWrites);
 253
 254         /* Now that we have reprogrammed rfgain value, clear the flag. */
 255         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 256
 257         return AH_TRUE;
 258 #undef  RF_BANK_SETUP
 259 }
 260
 261 /*
 262  * Return a reference to the requested RF Bank.
 263  */
 264 static uint32_t *
 265 ar5413GetRfBank(struct ath_hal *ah, int bank)
 266 {
 267         struct ar5413State *priv = AR5413(ah);
 268
 269         HALASSERT(priv != AH_NULL);
 270         switch (bank) {
 271         case 1: return priv->Bank1Data;
 272         case 2: return priv->Bank2Data;
 273         case 3: return priv->Bank3Data;
 274         case 6: return priv->Bank6Data;
 275         case 7: return priv->Bank7Data;
 276         }
 277         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 278             __func__, bank);
 279         return AH_NULL;
 280 }
 281
 282 /*
 283  * Return indices surrounding the value in sorted integer lists.
 284  *
 285  * NB: the input list is assumed to be sorted in ascending order
 286  */
 287 static void
 288 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 289                           uint32_t *vlo, uint32_t *vhi)
 290 {
 291         int16_t target = v;
 292         const uint16_t *ep = lp+listSize;
 293         const uint16_t *tp;
 294
 295         /*
 296          * Check first and last elements for out-of-bounds conditions.
 297          */
 298         if (target < lp[0]) {
 299                 *vlo = *vhi = 0;
 300                 return;
 301         }
 302         if (target >= ep[-1]) {
 303                 *vlo = *vhi = listSize - 1;
 304                 return;
 305         }
 306
 307         /* look for value being near or between 2 values in list */
 308         for (tp = lp; tp < ep; tp++) {
 309                 /*
 310                  * If value is close to the current value of the list
 311                  * then target is not between values, it is one of the values
 312                  */
 313                 if (*tp == target) {
 314                         *vlo = *vhi = tp - (const uint16_t *) lp;
 315                         return;
 316                 }
 317                 /*
 318                  * Look for value being between current value and next value
 319                  * if so return these 2 values
 320                  */
 321                 if (target < tp[1]) {
 322                         *vlo = tp - (const uint16_t *) lp;
 323                         *vhi = *vlo + 1;
 324                         return;
 325                 }
 326         }
 327 }
 328
 329 /*
 330  * Fill the Vpdlist for indices Pmax-Pmin
 331  */
 332 static HAL_BOOL
 333 ar5413FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 334                    const int16_t *pwrList, const uint16_t *VpdList,
 335                    uint16_t numIntercepts,
 336                    uint16_t retVpdList[][64])
 337 {
 338         uint16_t ii, jj, kk;
 339         int16_t currPwr = (int16_t)(2*Pmin);
 340         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 341         uint32_t  idxL, idxR;
 342
 343         ii = 0;
 344         jj = 0;
 345
 346         if (numIntercepts < 2)
 347                 return AH_FALSE;
 348
 349         while (ii <= (uint16_t)(Pmax - Pmin)) {
 350                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 351                                    numIntercepts, &(idxL), &(idxR));
 352                 if (idxR < 1)
 353                         idxR = 1;                       /* extrapolate below */
 354                 if (idxL == (uint32_t)(numIntercepts - 1))
 355                         idxL = numIntercepts - 2;       /* extrapolate above */
 356                 if (pwrList[idxL] == pwrList[idxR])
 357                         kk = VpdList[idxL];
 358                 else
 359                         kk = (uint16_t)
 360                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 361                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 362                                  (pwrList[idxR] - pwrList[idxL]));
 363                 retVpdList[pdGainIdx][ii] = kk;
 364                 ii++;
 365                 currPwr += 2;                           /* half dB steps */
 366         }
 367
 368         return AH_TRUE;
 369 }
 370
 371 /*
 372  * Returns interpolated or the scaled up interpolated value
 373  */
 374 static int16_t
 375 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 376         int16_t targetLeft, int16_t targetRight)
 377 {
 378         int16_t rv;
 379
 380         if (srcRight != srcLeft) {
 381                 rv = ((target - srcLeft)*targetRight +
 382                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 383         } else {
 384                 rv = targetLeft;
 385         }
 386         return rv;
 387 }
 388
 389 /*
 390  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 391  * Called by ar5413SetPowerTable()
 392  */
 393 static int
 394 ar5413getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 395                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 396                 uint16_t pdGainOverlap_t2,
 397                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 398                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 399 {
 400         struct ar5413State *priv = AR5413(ah);
 401 #define VpdTable_L      priv->vpdTable_L
 402 #define VpdTable_R      priv->vpdTable_R
 403 #define VpdTable_I      priv->vpdTable_I
 404         uint32_t ii, jj, kk;
 405         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 406         uint32_t idxL, idxR;
 407         uint32_t numPdGainsUsed = 0;
 408         /*
 409          * If desired to support -ve power levels in future, just
 410          * change pwr_I_0 to signed 5-bits.
 411          */
 412         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 413         /* to accomodate -ve power levels later on. */
 414         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 415         /* to accomodate -ve power levels later on */
 416         uint16_t numVpd = 0;
 417         uint16_t Vpd_step;
 418         int16_t tmpVal ;
 419         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 420
 421         /* Get upper lower index */
 422         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 423                                  pRawDataset->numChannels, &(idxL), &(idxR));
 424
 425         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 426                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 427                 /* work backwards 'cause highest pdGain for lowest power */
 428                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 429                 if (numVpd > 0) {
 430                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 431                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 432                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 433                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 434                         }
 435                         Pmin_t2[numPdGainsUsed] = (int16_t)
 436                                 (Pmin_t2[numPdGainsUsed] / 2);
 437                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 438                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 439                                 Pmax_t2[numPdGainsUsed] =
 440                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 441                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 442                         ar5413FillVpdTable(
 443                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 444                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 445                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 446                                            );
 447                         ar5413FillVpdTable(
 448                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 449                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 450                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 451                                            );
 452                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 453                                 VpdTable_I[numPdGainsUsed][kk] =
 454                                         interpolate_signed(
 455                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 456                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 457                         }
 458                         /* fill VpdTable_I for this pdGain */
 459                         numPdGainsUsed++;
 460                 }
 461                 /* if this pdGain is used */
 462         }
 463
 464         *pMinCalPower = Pmin_t2[0];
 465         kk = 0; /* index for the final table */
 466         for (ii = 0; ii < numPdGainsUsed; ii++) {
 467                 if (ii == (numPdGainsUsed - 1))
 468                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 469                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 470                 else
 471                         pPdGainBoundaries[ii] = (uint16_t)
 472                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 473                 if (pPdGainBoundaries[ii] > 63) {
 474                         HALDEBUG(ah, HAL_DEBUG_ANY,
 475                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 476                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 477                         pPdGainBoundaries[ii] = 63;
 478                 }
 479
 480                 /* Find starting index for this pdGain */
 481                 if (ii == 0)
 482                         ss = 0; /* for the first pdGain, start from index 0 */
 483                 else
 484                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 485                                 pdGainOverlap_t2;
 486                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 487                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 488                 /*
 489                  *-ve ss indicates need to extrapolate data below for this pdGain
 490                  */
 491                 while (ss < 0) {
 492                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 493                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 494                         ss++;
 495                 }
 496
 497                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 498                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 499                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 500
 501                 while (ss < (int16_t)maxIndex)
 502                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 503
 504                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 505                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 506                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 507                 /*
 508                  * for last gain, pdGainBoundary == Pmax_t2, so will
 509                  * have to extrapolate
 510                  */
 511                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 512                         while(ss < (int16_t)tgtIndex) {
 513                                 tmpVal = (uint16_t)
 514                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 515                                          (ss-maxIndex)*Vpd_step);
 516                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 517                                         127 : tmpVal;
 518                                 ss++;
 519                         }
 520                 }                               /* extrapolated above */
 521         }                                       /* for all pdGainUsed */
 522
 523         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 524                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 525                 ii++;
 526         }
 527         while (kk < 128) {
 528                 pPDADCValues[kk] = pPDADCValues[kk-1];
 529                 kk++;
 530         }
 531
 532         return numPdGainsUsed;
 533 #undef VpdTable_L
 534 #undef VpdTable_R
 535 #undef VpdTable_I
 536 }
 537
 538 static HAL_BOOL
 539 ar5413SetPowerTable(struct ath_hal *ah,
 540         int16_t *minPower, int16_t *maxPower,
 541         const struct ieee80211_channel *chan,
 542         uint16_t *rfXpdGain)
 543 {
 544         struct ath_hal_5212 *ahp = AH5212(ah);
 545         uint16_t freq = ath_hal_gethwchannel(ah, chan);
 546         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 547         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 548         uint16_t pdGainOverlap_t2;
 549         int16_t minCalPower5413_t2;
 550         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 551         uint16_t gainBoundaries[4];
 552         uint32_t reg32, regoffset;
 553         int i, numPdGainsUsed;
 554 #ifndef AH_USE_INIPDGAIN
 555         uint32_t tpcrg1;
 556 #endif
 557
 558         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 559             __func__, chan->ic_freq, chan->ic_flags);
 560
 561         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 562                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 563         else if (IEEE80211_IS_CHAN_B(chan))
 564                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 565         else {
 566                 HALASSERT(IEEE80211_IS_CHAN_5GHZ(chan));
 567                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11A];
 568         }
 569
 570         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 571                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 572
 573         numPdGainsUsed = ar5413getGainBoundariesAndPdadcsForPowers(ah,
 574                 freq, pRawDataset, pdGainOverlap_t2,
 575                 &minCalPower5413_t2,gainBoundaries, rfXpdGain, pdadcValues);
 576         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 577
 578 #ifdef AH_USE_INIPDGAIN
 579         /*
 580          * Use pd_gains curve from eeprom; Atheros always uses
 581          * the default curve from the ini file but some vendors
 582          * (e.g. Zcomax) want to override this curve and not
 583          * honoring their settings results in tx power 5dBm low.
 584          */
 585         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 586                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 587 #else
 588         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 589         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 590                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 591         switch (numPdGainsUsed) {
 592         case 3:
 593                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 594                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 595                 /* fall thru... */
 596         case 2:
 597                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 598                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 599                 /* fall thru... */
 600         case 1:
 601                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 602                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 603                 break;
 604         }
 605 #ifdef AH_DEBUG
 606         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 607                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 608                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 609                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 610 #endif
 611         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 612 #endif
 613
 614         /*
 615          * Note the pdadc table may not start at 0 dBm power, could be
 616          * negative or greater than 0.  Need to offset the power
 617          * values by the amount of minPower for griffin
 618          */
 619         if (minCalPower5413_t2 != 0)
 620                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower5413_t2);
 621         else
 622                 ahp->ah_txPowerIndexOffset = 0;
 623
 624         /* Finally, write the power values into the baseband power table */
 625         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 626         for (i = 0; i < 32; i++) {
 627                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 628                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 629                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 630                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 631                 OS_REG_WRITE(ah, regoffset, reg32);
 632                 regoffset += 4;
 633         }
 634
 635         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 636                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 637                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 638                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 639                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 640                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 641
 642         return AH_TRUE;
 643 }
 644
 645 static int16_t
 646 ar5413GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 647 {
 648         uint32_t ii,jj;
 649         uint16_t Pmin=0,numVpd;
 650
 651         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 652                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 653                 /* work backwards 'cause highest pdGain for lowest power */
 654                 numVpd = data->pDataPerPDGain[jj].numVpd;
 655                 if (numVpd > 0) {
 656                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 657                         return(Pmin);
 658                 }
 659         }
 660         return(Pmin);
 661 }
 662
 663 static int16_t
 664 ar5413GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 665 {
 666         uint32_t ii;
 667         uint16_t Pmax=0,numVpd;
 668
 669         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 670                 /* work forwards cuase lowest pdGain for highest power */
 671                 numVpd = data->pDataPerPDGain[ii].numVpd;
 672                 if (numVpd > 0) {
 673                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 674                         return(Pmax);
 675                 }
 676         }
 677         return(Pmax);
 678 }
 679
 680 static HAL_BOOL
 681 ar5413GetChannelMaxMinPower(struct ath_hal *ah,
 682         const struct ieee80211_channel *chan,
 683         int16_t *maxPow, int16_t *minPow)
 684 {
 685         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 686         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 687         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 688         const RAW_DATA_PER_CHANNEL_2413 *data=AH_NULL;
 689         uint16_t numChannels;
 690         int totalD,totalF, totalMin,last, i;
 691
 692         *maxPow = 0;
 693
 694         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 695                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 696         else if (IEEE80211_IS_CHAN_B(chan))
 697                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 698         else {
 699                 HALASSERT(IEEE80211_IS_CHAN_5GHZ(chan));
 700                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11A];
 701         }
 702
 703         numChannels = pRawDataset->numChannels;
 704         data = pRawDataset->pDataPerChannel;
 705
 706         /* Make sure the channel is in the range of the TP values
 707          *  (freq piers)
 708          */
 709         if (numChannels < 1)
 710                 return(AH_FALSE);
 711
 712         if ((freq < data[0].channelValue) ||
 713             (freq > data[numChannels-1].channelValue)) {
 714                 if (freq < data[0].channelValue) {
 715                         *maxPow = ar5413GetMaxPower(ah, &data[0]);
 716                         *minPow = ar5413GetMinPower(ah, &data[0]);
 717                         return(AH_TRUE);
 718                 } else {
 719                         *maxPow = ar5413GetMaxPower(ah, &data[numChannels - 1]);
 720                         *minPow = ar5413GetMinPower(ah, &data[numChannels - 1]);
 721                         return(AH_TRUE);
 722                 }
 723         }
 724
 725         /* Linearly interpolate the power value now */
 726         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 727              last = i++);
 728         totalD = data[i].channelValue - data[last].channelValue;
 729         if (totalD > 0) {
 730                 totalF = ar5413GetMaxPower(ah, &data[i]) - ar5413GetMaxPower(ah, &data[last]);
 731                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 732                                      ar5413GetMaxPower(ah, &data[last])*totalD)/totalD);
 733                 totalMin = ar5413GetMinPower(ah, &data[i]) - ar5413GetMinPower(ah, &data[last]);
 734                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 735                                      ar5413GetMinPower(ah, &data[last])*totalD)/totalD);
 736                 return(AH_TRUE);
 737         } else {
 738                 if (freq == data[i].channelValue) {
 739                         *maxPow = ar5413GetMaxPower(ah, &data[i]);
 740                         *minPow = ar5413GetMinPower(ah, &data[i]);
 741                         return(AH_TRUE);
 742                 } else
 743                         return(AH_FALSE);
 744         }
 745 }
 746
 747 /*
 748  * Free memory for analog bank scratch buffers
 749  */
 750 static void
 751 ar5413RfDetach(struct ath_hal *ah)
 752 {
 753         struct ath_hal_5212 *ahp = AH5212(ah);
 754
 755         HALASSERT(ahp->ah_rfHal != AH_NULL);
 756         ath_hal_free(ahp->ah_rfHal);
 757         ahp->ah_rfHal = AH_NULL;
 758 }
 759
 760 /*
 761  * Allocate memory for analog bank scratch buffers
 762  * Scratch Buffer will be reinitialized every reset so no need to zero now
 763  */
 764 static HAL_BOOL
 765 ar5413RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 766 {
 767         struct ath_hal_5212 *ahp = AH5212(ah);
 768         struct ar5413State *priv;
 769
 770         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 771
 772         HALASSERT(ahp->ah_rfHal == AH_NULL);
 773         priv = ath_hal_malloc(sizeof(struct ar5413State));
 774         if (priv == AH_NULL) {
 775                 HALDEBUG(ah, HAL_DEBUG_ANY,
 776                     "%s: cannot allocate private state\n", __func__);
 777                 *status = HAL_ENOMEM;           /* XXX */
 778                 return AH_FALSE;
 779         }
 780         priv->base.rfDetach             = ar5413RfDetach;
 781         priv->base.writeRegs            = ar5413WriteRegs;
 782         priv->base.getRfBank            = ar5413GetRfBank;
 783         priv->base.setChannel           = ar5413SetChannel;
 784         priv->base.setRfRegs            = ar5413SetRfRegs;
 785         priv->base.setPowerTable        = ar5413SetPowerTable;
 786         priv->base.getChannelMaxMinPower = ar5413GetChannelMaxMinPower;
 787         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 788
 789         ahp->ah_pcdacTable = priv->pcdacTable;
 790         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 791         ahp->ah_rfHal = &priv->base;
 792
 793         return AH_TRUE;
 794 }
 795
 796 static HAL_BOOL
 797 ar5413Probe(struct ath_hal *ah)
 798 {
 799         return IS_5413(ah);
 800 }
 801 AH_RF(RF5413, ar5413Probe, ar5413RfAttach);