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