sys/dev/ath/ath_hal/ar5212/ar2317.c

   1 /*-
   2  * SPDX-License-Identifier: ISC
   3  *
   4  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   5  * Copyright (c) 2002-2008 Atheros Communications, Inc.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  *
  19  * $FreeBSD$
  20  */
  21 #include "opt_ah.h"
  22
  23 #include "ah.h"
  24 #include "ah_internal.h"
  25
  26 #include "ar5212/ar5212.h"
  27 #include "ar5212/ar5212reg.h"
  28 #include "ar5212/ar5212phy.h"
  29
  30 #include "ah_eeprom_v3.h"
  31
  32 #define AH_5212_2317
  33 #include "ar5212/ar5212.ini"
  34
  35 #define N(a)    (sizeof(a)/sizeof(a[0]))
  36
  37 typedef RAW_DATA_STRUCT_2413 RAW_DATA_STRUCT_2317;
  38 typedef RAW_DATA_PER_CHANNEL_2413 RAW_DATA_PER_CHANNEL_2317;
  39 #define PWR_TABLE_SIZE_2317 PWR_TABLE_SIZE_2413
  40
  41 struct ar2317State {
  42         RF_HAL_FUNCS    base;           /* public state, must be first */
  43         uint16_t        pcdacTable[PWR_TABLE_SIZE_2317];
  44
  45         uint32_t        Bank1Data[N(ar5212Bank1_2317)];
  46         uint32_t        Bank2Data[N(ar5212Bank2_2317)];
  47         uint32_t        Bank3Data[N(ar5212Bank3_2317)];
  48         uint32_t        Bank6Data[N(ar5212Bank6_2317)];
  49         uint32_t        Bank7Data[N(ar5212Bank7_2317)];
  50
  51         /*
  52          * Private state for reduced stack usage.
  53          */
  54         /* filled out Vpd table for all pdGains (chanL) */
  55         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  56                             [MAX_PWR_RANGE_IN_HALF_DB];
  57         /* filled out Vpd table for all pdGains (chanR) */
  58         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  59                             [MAX_PWR_RANGE_IN_HALF_DB];
  60         /* filled out Vpd table for all pdGains (interpolated) */
  61         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  62                             [MAX_PWR_RANGE_IN_HALF_DB];
  63 };
  64 #define AR2317(ah)      ((struct ar2317State *) AH5212(ah)->ah_rfHal)
  65
  66 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  67                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  68
  69 static void
  70 ar2317WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  71         int writes)
  72 {
  73         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2317, modesIndex, writes);
  74         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2317, 1, writes);
  75         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2317, freqIndex, writes);
  76 }
  77
  78 /*
  79  * Take the MHz channel value and set the Channel value
  80  *
  81  * ASSUMES: Writes enabled to analog bus
  82  */
  83 static HAL_BOOL
  84 ar2317SetChannel(struct ath_hal *ah,  const struct ieee80211_channel *chan)
  85 {
  86         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  87         uint32_t channelSel  = 0;
  88         uint32_t bModeSynth  = 0;
  89         uint32_t aModeRefSel = 0;
  90         uint32_t reg32       = 0;
  91
  92         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  93
  94         if (freq < 4800) {
  95                 uint32_t txctl;
  96                 channelSel = freq - 2272 ;
  97                 channelSel = ath_hal_reverseBits(channelSel, 8);
  98
  99                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 100                 if (freq == 2484) {
 101                         /* Enable channel spreading for channel 14 */
 102                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 103                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 104                 } else {
 105                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 106                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 107                 }
 108         } else if ((freq % 20) == 0 && freq >= 5120) {
 109                 channelSel = ath_hal_reverseBits(
 110                         ((freq - 4800) / 20 << 2), 8);
 111                 aModeRefSel = ath_hal_reverseBits(3, 2);
 112         } else if ((freq % 10) == 0) {
 113                 channelSel = ath_hal_reverseBits(
 114                         ((freq - 4800) / 10 << 1), 8);
 115                 aModeRefSel = ath_hal_reverseBits(2, 2);
 116         } else if ((freq % 5) == 0) {
 117                 channelSel = ath_hal_reverseBits(
 118                         (freq - 4800) / 5, 8);
 119                 aModeRefSel = ath_hal_reverseBits(1, 2);
 120         } else {
 121                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 122                     __func__, freq);
 123                 return AH_FALSE;
 124         }
 125
 126         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 127                         (1 << 12) | 0x1;
 128         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 129
 130         reg32 >>= 8;
 131         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 132
 133         AH_PRIVATE(ah)->ah_curchan = chan;
 134         return AH_TRUE;
 135 }
 136
 137 /*
 138  * Reads EEPROM header info from device structure and programs
 139  * all rf registers
 140  *
 141  * REQUIRES: Access to the analog rf device
 142  */
 143 static HAL_BOOL
 144 ar2317SetRfRegs(struct ath_hal *ah,
 145         const struct ieee80211_channel *chan,
 146         uint16_t modesIndex, uint16_t *rfXpdGain)
 147 {
 148 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 149         int i;                                                              \
 150         for (i = 0; i < N(ar5212Bank##_ix##_2317); i++)                     \
 151                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2317[i][_col];\
 152 } while (0)
 153         struct ath_hal_5212 *ahp = AH5212(ah);
 154         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 155         uint16_t ob2GHz = 0, db2GHz = 0;
 156         struct ar2317State *priv = AR2317(ah);
 157         int regWrites = 0;
 158
 159         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 160             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 161
 162         HALASSERT(priv);
 163
 164         /* Setup rf parameters */
 165         if (IEEE80211_IS_CHAN_B(chan)) {
 166                 ob2GHz = ee->ee_obFor24;
 167                 db2GHz = ee->ee_dbFor24;
 168         } else {
 169                 ob2GHz = ee->ee_obFor24g;
 170                 db2GHz = ee->ee_dbFor24g;
 171         }
 172
 173         /* Bank 1 Write */
 174         RF_BANK_SETUP(priv, 1, 1);
 175
 176         /* Bank 2 Write */
 177         RF_BANK_SETUP(priv, 2, modesIndex);
 178
 179         /* Bank 3 Write */
 180         RF_BANK_SETUP(priv, 3, modesIndex);
 181
 182         /* Bank 6 Write */
 183         RF_BANK_SETUP(priv, 6, modesIndex);
 184
 185         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 193, 0);
 186         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 190, 0);
 187
 188         /* Bank 7 Setup */
 189         RF_BANK_SETUP(priv, 7, modesIndex);
 190
 191         /* Write Analog registers */
 192         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2317, priv->Bank1Data, regWrites);
 193         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2317, priv->Bank2Data, regWrites);
 194         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2317, priv->Bank3Data, regWrites);
 195         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2317, priv->Bank6Data, regWrites);
 196         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2317, priv->Bank7Data, regWrites);
 197         /* Now that we have reprogrammed rfgain value, clear the flag. */
 198         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 199
 200         return AH_TRUE;
 201 #undef  RF_BANK_SETUP
 202 }
 203
 204 /*
 205  * Return a reference to the requested RF Bank.
 206  */
 207 static uint32_t *
 208 ar2317GetRfBank(struct ath_hal *ah, int bank)
 209 {
 210         struct ar2317State *priv = AR2317(ah);
 211
 212         HALASSERT(priv != AH_NULL);
 213         switch (bank) {
 214         case 1: return priv->Bank1Data;
 215         case 2: return priv->Bank2Data;
 216         case 3: return priv->Bank3Data;
 217         case 6: return priv->Bank6Data;
 218         case 7: return priv->Bank7Data;
 219         }
 220         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 221             __func__, bank);
 222         return AH_NULL;
 223 }
 224
 225 /*
 226  * Return indices surrounding the value in sorted integer lists.
 227  *
 228  * NB: the input list is assumed to be sorted in ascending order
 229  */
 230 static void
 231 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 232                           uint32_t *vlo, uint32_t *vhi)
 233 {
 234         int16_t target = v;
 235         const int16_t *ep = lp+listSize;
 236         const int16_t *tp;
 237
 238         /*
 239          * Check first and last elements for out-of-bounds conditions.
 240          */
 241         if (target < lp[0]) {
 242                 *vlo = *vhi = 0;
 243                 return;
 244         }
 245         if (target >= ep[-1]) {
 246                 *vlo = *vhi = listSize - 1;
 247                 return;
 248         }
 249
 250         /* look for value being near or between 2 values in list */
 251         for (tp = lp; tp < ep; tp++) {
 252                 /*
 253                  * If value is close to the current value of the list
 254                  * then target is not between values, it is one of the values
 255                  */
 256                 if (*tp == target) {
 257                         *vlo = *vhi = tp - (const int16_t *) lp;
 258                         return;
 259                 }
 260                 /*
 261                  * Look for value being between current value and next value
 262                  * if so return these 2 values
 263                  */
 264                 if (target < tp[1]) {
 265                         *vlo = tp - (const int16_t *) lp;
 266                         *vhi = *vlo + 1;
 267                         return;
 268                 }
 269         }
 270 }
 271
 272 /*
 273  * Fill the Vpdlist for indices Pmax-Pmin
 274  */
 275 static HAL_BOOL
 276 ar2317FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 277                    const int16_t *pwrList, const int16_t *VpdList,
 278                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 279 {
 280         uint16_t ii, jj, kk;
 281         int16_t currPwr = (int16_t)(2*Pmin);
 282         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 283         uint32_t  idxL, idxR;
 284
 285         ii = 0;
 286         jj = 0;
 287
 288         if (numIntercepts < 2)
 289                 return AH_FALSE;
 290
 291         while (ii <= (uint16_t)(Pmax - Pmin)) {
 292                 GetLowerUpperIndex(currPwr, pwrList, numIntercepts,
 293                                          &(idxL), &(idxR));
 294                 if (idxR < 1)
 295                         idxR = 1;                       /* extrapolate below */
 296                 if (idxL == (uint32_t)(numIntercepts - 1))
 297                         idxL = numIntercepts - 2;       /* extrapolate above */
 298                 if (pwrList[idxL] == pwrList[idxR])
 299                         kk = VpdList[idxL];
 300                 else
 301                         kk = (uint16_t)
 302                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 303                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 304                                  (pwrList[idxR] - pwrList[idxL]));
 305                 retVpdList[pdGainIdx][ii] = kk;
 306                 ii++;
 307                 currPwr += 2;                           /* half dB steps */
 308         }
 309
 310         return AH_TRUE;
 311 }
 312
 313 /*
 314  * Returns interpolated or the scaled up interpolated value
 315  */
 316 static int16_t
 317 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 318         int16_t targetLeft, int16_t targetRight)
 319 {
 320         int16_t rv;
 321
 322         if (srcRight != srcLeft) {
 323                 rv = ((target - srcLeft)*targetRight +
 324                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 325         } else {
 326                 rv = targetLeft;
 327         }
 328         return rv;
 329 }
 330
 331 /*
 332  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 333  * Called by ar2317SetPowerTable()
 334  */
 335 static int
 336 ar2317getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 337                 const RAW_DATA_STRUCT_2317 *pRawDataset,
 338                 uint16_t pdGainOverlap_t2,
 339                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 340                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 341 {
 342         struct ar2317State *priv = AR2317(ah);
 343 #define VpdTable_L      priv->vpdTable_L
 344 #define VpdTable_R      priv->vpdTable_R
 345 #define VpdTable_I      priv->vpdTable_I
 346         /* XXX excessive stack usage? */
 347         uint32_t ii, jj, kk;
 348         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 349         uint32_t idxL, idxR;
 350         uint32_t numPdGainsUsed = 0;
 351         /*
 352          * If desired to support -ve power levels in future, just
 353          * change pwr_I_0 to signed 5-bits.
 354          */
 355         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 356         /* to accommodate -ve power levels later on. */
 357         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 358         /* to accommodate -ve power levels later on */
 359         uint16_t numVpd = 0;
 360         uint16_t Vpd_step;
 361         int16_t tmpVal ;
 362         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 363
 364         /* Get upper lower index */
 365         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 366                                  pRawDataset->numChannels, &(idxL), &(idxR));
 367
 368         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 369                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 370                 /* work backwards 'cause highest pdGain for lowest power */
 371                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 372                 if (numVpd > 0) {
 373                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 374                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 375                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 376                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 377                         }
 378                         Pmin_t2[numPdGainsUsed] = (int16_t)
 379                                 (Pmin_t2[numPdGainsUsed] / 2);
 380                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 381                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 382                                 Pmax_t2[numPdGainsUsed] =
 383                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 384                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 385                         ar2317FillVpdTable(
 386                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 387                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 388                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 389                                            );
 390                         ar2317FillVpdTable(
 391                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 392                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 393                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 394                                            );
 395                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 396                                 VpdTable_I[numPdGainsUsed][kk] =
 397                                         interpolate_signed(
 398                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 399                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 400                         }
 401                         /* fill VpdTable_I for this pdGain */
 402                         numPdGainsUsed++;
 403                 }
 404                 /* if this pdGain is used */
 405         }
 406
 407         *pMinCalPower = Pmin_t2[0];
 408         kk = 0; /* index for the final table */
 409         for (ii = 0; ii < numPdGainsUsed; ii++) {
 410                 if (ii == (numPdGainsUsed - 1))
 411                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 412                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 413                 else
 414                         pPdGainBoundaries[ii] = (uint16_t)
 415                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 416                 if (pPdGainBoundaries[ii] > 63) {
 417                         HALDEBUG(ah, HAL_DEBUG_ANY,
 418                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 419                            __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 420                         pPdGainBoundaries[ii] = 63;
 421                 }
 422
 423                 /* Find starting index for this pdGain */
 424                 if (ii == 0)
 425                         ss = 0; /* for the first pdGain, start from index 0 */
 426                 else
 427                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 428                                 pdGainOverlap_t2;
 429                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 430                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 431                 /*
 432                  *-ve ss indicates need to extrapolate data below for this pdGain
 433                  */
 434                 while (ss < 0) {
 435                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 436                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 437                         ss++;
 438                 }
 439
 440                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 441                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 442                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 443
 444                 while (ss < (int16_t)maxIndex)
 445                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 446
 447                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 448                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 449                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 450                 /*
 451                  * for last gain, pdGainBoundary == Pmax_t2, so will
 452                  * have to extrapolate
 453                  */
 454                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 455                         while(ss < (int16_t)tgtIndex) {
 456                                 tmpVal = (uint16_t)
 457                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 458                                          (ss-maxIndex)*Vpd_step);
 459                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 460                                         127 : tmpVal;
 461                                 ss++;
 462                         }
 463                 }                               /* extrapolated above */
 464         }                                       /* for all pdGainUsed */
 465
 466         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 467                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 468                 ii++;
 469         }
 470         while (kk < 128) {
 471                 pPDADCValues[kk] = pPDADCValues[kk-1];
 472                 kk++;
 473         }
 474
 475         return numPdGainsUsed;
 476 #undef VpdTable_L
 477 #undef VpdTable_R
 478 #undef VpdTable_I
 479 }
 480
 481 static HAL_BOOL
 482 ar2317SetPowerTable(struct ath_hal *ah,
 483         int16_t *minPower, int16_t *maxPower,
 484         const struct ieee80211_channel *chan,
 485         uint16_t *rfXpdGain)
 486 {
 487         struct ath_hal_5212 *ahp = AH5212(ah);
 488         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 489         const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
 490         uint16_t pdGainOverlap_t2;
 491         int16_t minCalPower2317_t2;
 492         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 493         uint16_t gainBoundaries[4];
 494         uint32_t reg32, regoffset;
 495         int i, numPdGainsUsed;
 496 #ifndef AH_USE_INIPDGAIN
 497         uint32_t tpcrg1;
 498 #endif
 499
 500         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 501             __func__, chan->ic_freq, chan->ic_flags);
 502
 503         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 504                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 505         else if (IEEE80211_IS_CHAN_B(chan))
 506                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 507         else {
 508                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 509                 return AH_FALSE;
 510         }
 511
 512         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 513                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 514
 515         numPdGainsUsed = ar2317getGainBoundariesAndPdadcsForPowers(ah,
 516                 chan->channel, pRawDataset, pdGainOverlap_t2,
 517                 &minCalPower2317_t2,gainBoundaries, rfXpdGain, pdadcValues);
 518         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 519
 520 #ifdef AH_USE_INIPDGAIN
 521         /*
 522          * Use pd_gains curve from eeprom; Atheros always uses
 523          * the default curve from the ini file but some vendors
 524          * (e.g. Zcomax) want to override this curve and not
 525          * honoring their settings results in tx power 5dBm low.
 526          */
 527         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 528                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 529 #else
 530         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 531         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 532                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 533         switch (numPdGainsUsed) {
 534         case 3:
 535                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 536                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 537                 /* fall thru... */
 538         case 2:
 539                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 540                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 541                 /* fall thru... */
 542         case 1:
 543                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 544                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 545                 break;
 546         }
 547 #ifdef AH_DEBUG
 548         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 549                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 550                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 551                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 552 #endif
 553         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 554 #endif
 555
 556         /*
 557          * Note the pdadc table may not start at 0 dBm power, could be
 558          * negative or greater than 0.  Need to offset the power
 559          * values by the amount of minPower for griffin
 560          */
 561         if (minCalPower2317_t2 != 0)
 562                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2317_t2);
 563         else
 564                 ahp->ah_txPowerIndexOffset = 0;
 565
 566         /* Finally, write the power values into the baseband power table */
 567         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 568         for (i = 0; i < 32; i++) {
 569                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 570                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 571                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 572                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 573                 OS_REG_WRITE(ah, regoffset, reg32);
 574                 regoffset += 4;
 575         }
 576
 577         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 578                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 579                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 580                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 581                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 582                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 583
 584         return AH_TRUE;
 585 }
 586
 587 static int16_t
 588 ar2317GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
 589 {
 590         uint32_t ii,jj;
 591         uint16_t Pmin=0,numVpd;
 592
 593         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 594                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 595                 /* work backwards 'cause highest pdGain for lowest power */
 596                 numVpd = data->pDataPerPDGain[jj].numVpd;
 597                 if (numVpd > 0) {
 598                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 599                         return(Pmin);
 600                 }
 601         }
 602         return(Pmin);
 603 }
 604
 605 static int16_t
 606 ar2317GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2317 *data)
 607 {
 608         uint32_t ii;
 609         uint16_t Pmax=0,numVpd;
 610         uint16_t vpdmax;
 611
 612         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 613                 /* work forwards cuase lowest pdGain for highest power */
 614                 numVpd = data->pDataPerPDGain[ii].numVpd;
 615                 if (numVpd > 0) {
 616                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 617                         vpdmax = data->pDataPerPDGain[ii].Vpd[numVpd-1];
 618                         return(Pmax);
 619                 }
 620         }
 621         return(Pmax);
 622 }
 623
 624 static HAL_BOOL
 625 ar2317GetChannelMaxMinPower(struct ath_hal *ah,
 626         const struct ieee80211_channel *chan,
 627         int16_t *maxPow, int16_t *minPow)
 628 {
 629         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 630         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 631         const RAW_DATA_STRUCT_2317 *pRawDataset = AH_NULL;
 632         const RAW_DATA_PER_CHANNEL_2317 *data=AH_NULL;
 633         uint16_t numChannels;
 634         int totalD,totalF, totalMin,last, i;
 635
 636         *maxPow = 0;
 637
 638         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 639                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 640         else if (IEEE80211_IS_CHAN_B(chan))
 641                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 642         else
 643                 return(AH_FALSE);
 644
 645         numChannels = pRawDataset->numChannels;
 646         data = pRawDataset->pDataPerChannel;
 647
 648         /* Make sure the channel is in the range of the TP values
 649          *  (freq piers)
 650          */
 651         if (numChannels < 1)
 652                 return(AH_FALSE);
 653
 654         if ((freq < data[0].channelValue) ||
 655             (freq > data[numChannels-1].channelValue)) {
 656                 if (freq < data[0].channelValue) {
 657                         *maxPow = ar2317GetMaxPower(ah, &data[0]);
 658                         *minPow = ar2317GetMinPower(ah, &data[0]);
 659                         return(AH_TRUE);
 660                 } else {
 661                         *maxPow = ar2317GetMaxPower(ah, &data[numChannels - 1]);
 662                         *minPow = ar2317GetMinPower(ah, &data[numChannels - 1]);
 663                         return(AH_TRUE);
 664                 }
 665         }
 666
 667         /* Linearly interpolate the power value now */
 668         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 669              last = i++);
 670         totalD = data[i].channelValue - data[last].channelValue;
 671         if (totalD > 0) {
 672                 totalF = ar2317GetMaxPower(ah, &data[i]) - ar2317GetMaxPower(ah, &data[last]);
 673                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 674                                      ar2317GetMaxPower(ah, &data[last])*totalD)/totalD);
 675                 totalMin = ar2317GetMinPower(ah, &data[i]) - ar2317GetMinPower(ah, &data[last]);
 676                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 677                                      ar2317GetMinPower(ah, &data[last])*totalD)/totalD);
 678                 return(AH_TRUE);
 679         } else {
 680                 if (freq == data[i].channelValue) {
 681                         *maxPow = ar2317GetMaxPower(ah, &data[i]);
 682                         *minPow = ar2317GetMinPower(ah, &data[i]);
 683                         return(AH_TRUE);
 684                 } else
 685                         return(AH_FALSE);
 686         }
 687 }
 688
 689 /*
 690  * Free memory for analog bank scratch buffers
 691  */
 692 static void
 693 ar2317RfDetach(struct ath_hal *ah)
 694 {
 695         struct ath_hal_5212 *ahp = AH5212(ah);
 696
 697         HALASSERT(ahp->ah_rfHal != AH_NULL);
 698         ath_hal_free(ahp->ah_rfHal);
 699         ahp->ah_rfHal = AH_NULL;
 700 }
 701
 702 /*
 703  * Allocate memory for analog bank scratch buffers
 704  * Scratch Buffer will be reinitialized every reset so no need to zero now
 705  */
 706 static HAL_BOOL
 707 ar2317RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 708 {
 709         struct ath_hal_5212 *ahp = AH5212(ah);
 710         struct ar2317State *priv;
 711
 712         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 713
 714         HALASSERT(ahp->ah_rfHal == AH_NULL);
 715         priv = ath_hal_malloc(sizeof(struct ar2317State));
 716         if (priv == AH_NULL) {
 717                 HALDEBUG(ah, HAL_DEBUG_ANY,
 718                     "%s: cannot allocate private state\n", __func__);
 719                 *status = HAL_ENOMEM;           /* XXX */
 720                 return AH_FALSE;
 721         }
 722         priv->base.rfDetach             = ar2317RfDetach;
 723         priv->base.writeRegs            = ar2317WriteRegs;
 724         priv->base.getRfBank            = ar2317GetRfBank;
 725         priv->base.setChannel           = ar2317SetChannel;
 726         priv->base.setRfRegs            = ar2317SetRfRegs;
 727         priv->base.setPowerTable        = ar2317SetPowerTable;
 728         priv->base.getChannelMaxMinPower = ar2317GetChannelMaxMinPower;
 729         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 730
 731         ahp->ah_pcdacTable = priv->pcdacTable;
 732         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 733         ahp->ah_rfHal = &priv->base;
 734
 735         return AH_TRUE;
 736 }
 737
 738 static HAL_BOOL
 739 ar2317Probe(struct ath_hal *ah)
 740 {
 741         return IS_2317(ah);
 742 }
 743 AH_RF(RF2317, ar2317Probe, ar2317RfAttach);