sys/dev/netif/ath/hal/ath_hal/ar5212/ar2316.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/ar2316.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_2316
  32 #include "ar5212/ar5212.ini"
  33
  34 #define N(a)    (sizeof(a)/sizeof(a[0]))
  35
  36 typedef RAW_DATA_STRUCT_2413 RAW_DATA_STRUCT_2316;
  37 typedef RAW_DATA_PER_CHANNEL_2413 RAW_DATA_PER_CHANNEL_2316;
  38 #define PWR_TABLE_SIZE_2316 PWR_TABLE_SIZE_2413
  39
  40 struct ar2316State {
  41         RF_HAL_FUNCS    base;           /* public state, must be first */
  42         uint16_t        pcdacTable[PWR_TABLE_SIZE_2316];
  43
  44         uint32_t        Bank1Data[N(ar5212Bank1_2316)];
  45         uint32_t        Bank2Data[N(ar5212Bank2_2316)];
  46         uint32_t        Bank3Data[N(ar5212Bank3_2316)];
  47         uint32_t        Bank6Data[N(ar5212Bank6_2316)];
  48         uint32_t        Bank7Data[N(ar5212Bank7_2316)];
  49
  50         /*
  51          * Private state for reduced stack usage.
  52          */
  53         /* filled out Vpd table for all pdGains (chanL) */
  54         uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
  55                             [MAX_PWR_RANGE_IN_HALF_DB];
  56         /* filled out Vpd table for all pdGains (chanR) */
  57         uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
  58                             [MAX_PWR_RANGE_IN_HALF_DB];
  59         /* filled out Vpd table for all pdGains (interpolated) */
  60         uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
  61                             [MAX_PWR_RANGE_IN_HALF_DB];
  62 };
  63 #define AR2316(ah)      ((struct ar2316State *) AH5212(ah)->ah_rfHal)
  64
  65 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  66                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  67
  68 static void
  69 ar2316WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  70         int regWrites)
  71 {
  72         struct ath_hal_5212 *ahp = AH5212(ah);
  73
  74         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2316, modesIndex, regWrites);
  75         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2316, 1, regWrites);
  76         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2316, freqIndex, regWrites);
  77
  78         /* For AP51 */
  79         if (!ahp->ah_cwCalRequire) {
  80                 OS_REG_WRITE(ah, 0xa358, (OS_REG_READ(ah, 0xa358) & ~0x2));
  81         } else {
  82                 ahp->ah_cwCalRequire = AH_FALSE;
  83         }
  84 }
  85
  86 /*
  87  * Take the MHz channel value and set the Channel value
  88  *
  89  * ASSUMES: Writes enabled to analog bus
  90  */
  91 static HAL_BOOL
  92 ar2316SetChannel(struct ath_hal *ah,  struct ieee80211_channel *chan)
  93 {
  94         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  95         uint32_t channelSel  = 0;
  96         uint32_t bModeSynth  = 0;
  97         uint32_t aModeRefSel = 0;
  98         uint32_t reg32       = 0;
  99
 100         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
 101
 102         if (freq < 4800) {
 103                 uint32_t txctl;
 104
 105                 if (((freq - 2192) % 5) == 0) {
 106                         channelSel = ((freq - 672) * 2 - 3040)/10;
 107                         bModeSynth = 0;
 108                 } else if (((freq - 2224) % 5) == 0) {
 109                         channelSel = ((freq - 704) * 2 - 3040) / 10;
 110                         bModeSynth = 1;
 111                 } else {
 112                         HALDEBUG(ah, HAL_DEBUG_ANY,
 113                             "%s: invalid channel %u MHz\n",
 114                             __func__, freq);
 115                         return AH_FALSE;
 116                 }
 117
 118                 channelSel = (channelSel << 2) & 0xff;
 119                 channelSel = ath_hal_reverseBits(channelSel, 8);
 120
 121                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 122                 if (freq == 2484) {
 123                         /* Enable channel spreading for channel 14 */
 124                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 125                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 126                 } else {
 127                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 128                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 129                 }
 130         } else if ((freq % 20) == 0 && freq >= 5120) {
 131                 channelSel = ath_hal_reverseBits(
 132                         ((freq - 4800) / 20 << 2), 8);
 133                 aModeRefSel = ath_hal_reverseBits(3, 2);
 134         } else if ((freq % 10) == 0) {
 135                 channelSel = ath_hal_reverseBits(
 136                         ((freq - 4800) / 10 << 1), 8);
 137                 aModeRefSel = ath_hal_reverseBits(2, 2);
 138         } else if ((freq % 5) == 0) {
 139                 channelSel = ath_hal_reverseBits(
 140                         (freq - 4800) / 5, 8);
 141                 aModeRefSel = ath_hal_reverseBits(1, 2);
 142         } else {
 143                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 144                     __func__, freq);
 145                 return AH_FALSE;
 146         }
 147
 148         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 149                         (1 << 12) | 0x1;
 150         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 151
 152         reg32 >>= 8;
 153         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 154
 155         AH_PRIVATE(ah)->ah_curchan = chan;
 156         return AH_TRUE;
 157 }
 158
 159 /*
 160  * Reads EEPROM header info from device structure and programs
 161  * all rf registers
 162  *
 163  * REQUIRES: Access to the analog rf device
 164  */
 165 static HAL_BOOL
 166 ar2316SetRfRegs(struct ath_hal *ah, const struct ieee80211_channel *chan,
 167         uint16_t modesIndex, uint16_t *rfXpdGain)
 168 {
 169 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 170         int i;                                                              \
 171         for (i = 0; i < N(ar5212Bank##_ix##_2316); i++)                     \
 172                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2316[i][_col];\
 173 } while (0)
 174         struct ath_hal_5212 *ahp = AH5212(ah);
 175         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 176         uint16_t ob2GHz = 0, db2GHz = 0;
 177         struct ar2316State *priv = AR2316(ah);
 178         int regWrites = 0;
 179
 180         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 181             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 182
 183         HALASSERT(priv != AH_NULL);
 184
 185         /* Setup rf parameters */
 186         if (IEEE80211_IS_CHAN_B(chan)) {
 187                 ob2GHz = ee->ee_obFor24;
 188                 db2GHz = ee->ee_dbFor24;
 189         } else {
 190                 ob2GHz = ee->ee_obFor24g;
 191                 db2GHz = ee->ee_dbFor24g;
 192         }
 193
 194         /* Bank 1 Write */
 195         RF_BANK_SETUP(priv, 1, 1);
 196
 197         /* Bank 2 Write */
 198         RF_BANK_SETUP(priv, 2, modesIndex);
 199
 200         /* Bank 3 Write */
 201         RF_BANK_SETUP(priv, 3, modesIndex);
 202
 203         /* Bank 6 Write */
 204         RF_BANK_SETUP(priv, 6, modesIndex);
 205
 206         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz,   3, 178, 0);
 207         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz,   3, 175, 0);
 208
 209         /* Bank 7 Setup */
 210         RF_BANK_SETUP(priv, 7, modesIndex);
 211
 212         /* Write Analog registers */
 213         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2316, priv->Bank1Data, regWrites);
 214         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2316, priv->Bank2Data, regWrites);
 215         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2316, priv->Bank3Data, regWrites);
 216         HAL_INI_WRITE_BANK(ah, ar5212Bank6_2316, priv->Bank6Data, regWrites);
 217         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2316, priv->Bank7Data, regWrites);
 218
 219         /* Now that we have reprogrammed rfgain value, clear the flag. */
 220         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 221
 222         return AH_TRUE;
 223 #undef  RF_BANK_SETUP
 224 }
 225
 226 /*
 227  * Return a reference to the requested RF Bank.
 228  */
 229 static uint32_t *
 230 ar2316GetRfBank(struct ath_hal *ah, int bank)
 231 {
 232         struct ar2316State *priv = AR2316(ah);
 233
 234         HALASSERT(priv != AH_NULL);
 235         switch (bank) {
 236         case 1: return priv->Bank1Data;
 237         case 2: return priv->Bank2Data;
 238         case 3: return priv->Bank3Data;
 239         case 6: return priv->Bank6Data;
 240         case 7: return priv->Bank7Data;
 241         }
 242         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 243             __func__, bank);
 244         return AH_NULL;
 245 }
 246
 247 /*
 248  * Return indices surrounding the value in sorted integer lists.
 249  *
 250  * NB: the input list is assumed to be sorted in ascending order
 251  */
 252 static void
 253 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 254                           uint32_t *vlo, uint32_t *vhi)
 255 {
 256         int16_t target = v;
 257         const int16_t *ep = lp+listSize;
 258         const int16_t *tp;
 259
 260         /*
 261          * Check first and last elements for out-of-bounds conditions.
 262          */
 263         if (target < lp[0]) {
 264                 *vlo = *vhi = 0;
 265                 return;
 266         }
 267         if (target >= ep[-1]) {
 268                 *vlo = *vhi = listSize - 1;
 269                 return;
 270         }
 271
 272         /* look for value being near or between 2 values in list */
 273         for (tp = lp; tp < ep; tp++) {
 274                 /*
 275                  * If value is close to the current value of the list
 276                  * then target is not between values, it is one of the values
 277                  */
 278                 if (*tp == target) {
 279                         *vlo = *vhi = tp - (const int16_t *) lp;
 280                         return;
 281                 }
 282                 /*
 283                  * Look for value being between current value and next value
 284                  * if so return these 2 values
 285                  */
 286                 if (target < tp[1]) {
 287                         *vlo = tp - (const int16_t *) lp;
 288                         *vhi = *vlo + 1;
 289                         return;
 290                 }
 291         }
 292 }
 293
 294 /*
 295  * Fill the Vpdlist for indices Pmax-Pmin
 296  */
 297 static HAL_BOOL
 298 ar2316FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 299                    const int16_t *pwrList, const int16_t *VpdList,
 300                    uint16_t numIntercepts, uint16_t retVpdList[][64])
 301 {
 302         uint16_t ii, jj, kk;
 303         int16_t currPwr = (int16_t)(2*Pmin);
 304         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 305         uint32_t  idxL, idxR;
 306
 307         ii = 0;
 308         jj = 0;
 309
 310         if (numIntercepts < 2)
 311                 return AH_FALSE;
 312
 313         while (ii <= (uint16_t)(Pmax - Pmin)) {
 314                 GetLowerUpperIndex(currPwr, pwrList, numIntercepts,
 315                                          &(idxL), &(idxR));
 316                 if (idxR < 1)
 317                         idxR = 1;                       /* extrapolate below */
 318                 if (idxL == (uint32_t)(numIntercepts - 1))
 319                         idxL = numIntercepts - 2;       /* extrapolate above */
 320                 if (pwrList[idxL] == pwrList[idxR])
 321                         kk = VpdList[idxL];
 322                 else
 323                         kk = (uint16_t)
 324                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 325                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 326                                  (pwrList[idxR] - pwrList[idxL]));
 327                 retVpdList[pdGainIdx][ii] = kk;
 328                 ii++;
 329                 currPwr += 2;                           /* half dB steps */
 330         }
 331
 332         return AH_TRUE;
 333 }
 334
 335 /*
 336  * Returns interpolated or the scaled up interpolated value
 337  */
 338 static int16_t
 339 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 340         int16_t targetLeft, int16_t targetRight)
 341 {
 342         int16_t rv;
 343
 344         if (srcRight != srcLeft) {
 345                 rv = ((target - srcLeft)*targetRight +
 346                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 347         } else {
 348                 rv = targetLeft;
 349         }
 350         return rv;
 351 }
 352
 353 /*
 354  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 355  * Called by ar2316SetPowerTable()
 356  */
 357 static int
 358 ar2316getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 359                 const RAW_DATA_STRUCT_2316 *pRawDataset,
 360                 uint16_t pdGainOverlap_t2,
 361                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 362                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 363 {
 364         struct ar2316State *priv = AR2316(ah);
 365 #define VpdTable_L      priv->vpdTable_L
 366 #define VpdTable_R      priv->vpdTable_R
 367 #define VpdTable_I      priv->vpdTable_I
 368         uint32_t ii, jj, kk;
 369         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 370         uint32_t idxL, idxR;
 371         uint32_t numPdGainsUsed = 0;
 372         /*
 373          * If desired to support -ve power levels in future, just
 374          * change pwr_I_0 to signed 5-bits.
 375          */
 376         int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 377         /* to accomodate -ve power levels later on. */
 378         int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 379         /* to accomodate -ve power levels later on */
 380         uint16_t numVpd = 0;
 381         uint16_t Vpd_step;
 382         int16_t tmpVal ;
 383         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 384
 385         /* Get upper lower index */
 386         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 387                                  pRawDataset->numChannels, &(idxL), &(idxR));
 388
 389         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 390                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 391                 /* work backwards 'cause highest pdGain for lowest power */
 392                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 393                 if (numVpd > 0) {
 394                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 395                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 396                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 397                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 398                         }
 399                         Pmin_t2[numPdGainsUsed] = (int16_t)
 400                                 (Pmin_t2[numPdGainsUsed] / 2);
 401                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 402                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 403                                 Pmax_t2[numPdGainsUsed] =
 404                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 405                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 406                         ar2316FillVpdTable(
 407                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 408                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 409                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 410                                            );
 411                         ar2316FillVpdTable(
 412                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 413                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 414                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 415                                            );
 416                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 417                                 VpdTable_I[numPdGainsUsed][kk] =
 418                                         interpolate_signed(
 419                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 420                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 421                         }
 422                         /* fill VpdTable_I for this pdGain */
 423                         numPdGainsUsed++;
 424                 }
 425                 /* if this pdGain is used */
 426         }
 427
 428         *pMinCalPower = Pmin_t2[0];
 429         kk = 0; /* index for the final table */
 430         for (ii = 0; ii < numPdGainsUsed; ii++) {
 431                 if (ii == (numPdGainsUsed - 1))
 432                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 433                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 434                 else
 435                         pPdGainBoundaries[ii] = (uint16_t)
 436                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 437                 if (pPdGainBoundaries[ii] > 63) {
 438                         HALDEBUG(ah, HAL_DEBUG_ANY,
 439                             "%s: clamp pPdGainBoundaries[%d] %d\n",
 440                             __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
 441                         pPdGainBoundaries[ii] = 63;
 442                 }
 443
 444                 /* Find starting index for this pdGain */
 445                 if (ii == 0)
 446                         ss = 0; /* for the first pdGain, start from index 0 */
 447                 else
 448                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 449                                 pdGainOverlap_t2;
 450                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 451                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 452                 /*
 453                  *-ve ss indicates need to extrapolate data below for this pdGain
 454                  */
 455                 while (ss < 0) {
 456                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 457                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 458                         ss++;
 459                 }
 460
 461                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 462                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 463                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 464
 465                 while (ss < (int16_t)maxIndex)
 466                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 467
 468                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 469                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 470                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 471                 /*
 472                  * for last gain, pdGainBoundary == Pmax_t2, so will
 473                  * have to extrapolate
 474                  */
 475                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 476                         while(ss < (int16_t)tgtIndex) {
 477                                 tmpVal = (uint16_t)
 478                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 479                                          (ss-maxIndex)*Vpd_step);
 480                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 481                                         127 : tmpVal;
 482                                 ss++;
 483                         }
 484                 }                               /* extrapolated above */
 485         }                                       /* for all pdGainUsed */
 486
 487         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 488                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 489                 ii++;
 490         }
 491         while (kk < 128) {
 492                 pPDADCValues[kk] = pPDADCValues[kk-1];
 493                 kk++;
 494         }
 495
 496         return numPdGainsUsed;
 497 #undef VpdTable_L
 498 #undef VpdTable_R
 499 #undef VpdTable_I
 500 }
 501
 502 static HAL_BOOL
 503 ar2316SetPowerTable(struct ath_hal *ah,
 504         int16_t *minPower, int16_t *maxPower,
 505         const struct ieee80211_channel *chan,
 506         uint16_t *rfXpdGain)
 507 {
 508         struct ath_hal_5212 *ahp = AH5212(ah);
 509         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 510         const RAW_DATA_STRUCT_2316 *pRawDataset = AH_NULL;
 511         uint16_t pdGainOverlap_t2;
 512         int16_t minCalPower2316_t2;
 513         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 514         uint16_t gainBoundaries[4];
 515         uint32_t reg32, regoffset;
 516         int i, numPdGainsUsed;
 517 #ifndef AH_USE_INIPDGAIN
 518         uint32_t tpcrg1;
 519 #endif
 520
 521         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
 522             __func__, chan->ic_freq, chan->ic_flags);
 523
 524         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 525                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 526         else if (IEEE80211_IS_CHAN_B(chan))
 527                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 528         else {
 529                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__);
 530                 return AH_FALSE;
 531         }
 532
 533         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 534                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 535
 536         numPdGainsUsed = ar2316getGainBoundariesAndPdadcsForPowers(ah,
 537                 chan->channel, pRawDataset, pdGainOverlap_t2,
 538                 &minCalPower2316_t2,gainBoundaries, rfXpdGain, pdadcValues);
 539         HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
 540
 541 #ifdef AH_USE_INIPDGAIN
 542         /*
 543          * Use pd_gains curve from eeprom; Atheros always uses
 544          * the default curve from the ini file but some vendors
 545          * (e.g. Zcomax) want to override this curve and not
 546          * honoring their settings results in tx power 5dBm low.
 547          */
 548         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 549                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 550 #else
 551         tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
 552         tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
 553                   | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
 554         switch (numPdGainsUsed) {
 555         case 3:
 556                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
 557                 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
 558                 /* fall thru... */
 559         case 2:
 560                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
 561                 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
 562                 /* fall thru... */
 563         case 1:
 564                 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
 565                 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
 566                 break;
 567         }
 568 #ifdef AH_DEBUG
 569         if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
 570                 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
 571                     "pd_gains (default 0x%x, calculated 0x%x)\n",
 572                     __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
 573 #endif
 574         OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
 575 #endif
 576
 577         /*
 578          * Note the pdadc table may not start at 0 dBm power, could be
 579          * negative or greater than 0.  Need to offset the power
 580          * values by the amount of minPower for griffin
 581          */
 582         if (minCalPower2316_t2 != 0)
 583                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2316_t2);
 584         else
 585                 ahp->ah_txPowerIndexOffset = 0;
 586
 587         /* Finally, write the power values into the baseband power table */
 588         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 589         for (i = 0; i < 32; i++) {
 590                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 591                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 592                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 593                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 594                 OS_REG_WRITE(ah, regoffset, reg32);
 595                 regoffset += 4;
 596         }
 597
 598         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 599                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 600                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 601                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 602                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 603                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 604
 605         return AH_TRUE;
 606 }
 607
 608 static int16_t
 609 ar2316GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2316 *data)
 610 {
 611         uint32_t ii,jj;
 612         uint16_t Pmin=0,numVpd;
 613
 614         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 615                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 616                 /* work backwards 'cause highest pdGain for lowest power */
 617                 numVpd = data->pDataPerPDGain[jj].numVpd;
 618                 if (numVpd > 0) {
 619                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 620                         return(Pmin);
 621                 }
 622         }
 623         return(Pmin);
 624 }
 625
 626 static int16_t
 627 ar2316GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2316 *data)
 628 {
 629         uint32_t ii;
 630         uint16_t Pmax=0,numVpd;
 631
 632         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 633                 /* work forwards cuase lowest pdGain for highest power */
 634                 numVpd = data->pDataPerPDGain[ii].numVpd;
 635                 if (numVpd > 0) {
 636                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 637                         return(Pmax);
 638                 }
 639         }
 640         return(Pmax);
 641 }
 642
 643 static HAL_BOOL
 644 ar2316GetChannelMaxMinPower(struct ath_hal *ah,
 645         const struct ieee80211_channel *chan,
 646         int16_t *maxPow, int16_t *minPow)
 647 {
 648         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 649         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 650         const RAW_DATA_STRUCT_2316 *pRawDataset = AH_NULL;
 651         const RAW_DATA_PER_CHANNEL_2316 *data=AH_NULL;
 652         uint16_t numChannels;
 653         int totalD,totalF, totalMin,last, i;
 654
 655         *maxPow = 0;
 656
 657         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 658                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 659         else if (IEEE80211_IS_CHAN_B(chan))
 660                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 661         else
 662                 return(AH_FALSE);
 663
 664         numChannels = pRawDataset->numChannels;
 665         data = pRawDataset->pDataPerChannel;
 666
 667         /* Make sure the channel is in the range of the TP values
 668          *  (freq piers)
 669          */
 670         if (numChannels < 1)
 671                 return(AH_FALSE);
 672
 673         if ((freq < data[0].channelValue) ||
 674             (freq > data[numChannels-1].channelValue)) {
 675                 if (freq < data[0].channelValue) {
 676                         *maxPow = ar2316GetMaxPower(ah, &data[0]);
 677                         *minPow = ar2316GetMinPower(ah, &data[0]);
 678                         return(AH_TRUE);
 679                 } else {
 680                         *maxPow = ar2316GetMaxPower(ah, &data[numChannels - 1]);
 681                         *minPow = ar2316GetMinPower(ah, &data[numChannels - 1]);
 682                         return(AH_TRUE);
 683                 }
 684         }
 685
 686         /* Linearly interpolate the power value now */
 687         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 688              last = i++);
 689         totalD = data[i].channelValue - data[last].channelValue;
 690         if (totalD > 0) {
 691                 totalF = ar2316GetMaxPower(ah, &data[i]) - ar2316GetMaxPower(ah, &data[last]);
 692                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 693                                      ar2316GetMaxPower(ah, &data[last])*totalD)/totalD);
 694                 totalMin = ar2316GetMinPower(ah, &data[i]) - ar2316GetMinPower(ah, &data[last]);
 695                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 696                                      ar2316GetMinPower(ah, &data[last])*totalD)/totalD);
 697                 return(AH_TRUE);
 698         } else {
 699                 if (freq == data[i].channelValue) {
 700                         *maxPow = ar2316GetMaxPower(ah, &data[i]);
 701                         *minPow = ar2316GetMinPower(ah, &data[i]);
 702                         return(AH_TRUE);
 703                 } else
 704                         return(AH_FALSE);
 705         }
 706 }
 707
 708 /*
 709  * Free memory for analog bank scratch buffers
 710  */
 711 static void
 712 ar2316RfDetach(struct ath_hal *ah)
 713 {
 714         struct ath_hal_5212 *ahp = AH5212(ah);
 715
 716         HALASSERT(ahp->ah_rfHal != AH_NULL);
 717         ath_hal_free(ahp->ah_rfHal);
 718         ahp->ah_rfHal = AH_NULL;
 719 }
 720
 721 /*
 722  * Allocate memory for private state.
 723  * Scratch Buffer will be reinitialized every reset so no need to zero now
 724  */
 725 static HAL_BOOL
 726 ar2316RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 727 {
 728         struct ath_hal_5212 *ahp = AH5212(ah);
 729         struct ar2316State *priv;
 730
 731         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 732
 733         HALASSERT(ahp->ah_rfHal == AH_NULL);
 734         priv = ath_hal_malloc(sizeof(struct ar2316State));
 735         if (priv == AH_NULL) {
 736                 HALDEBUG(ah, HAL_DEBUG_ANY,
 737                     "%s: cannot allocate private state\n", __func__);
 738                 *status = HAL_ENOMEM;           /* XXX */
 739                 return AH_FALSE;
 740         }
 741         priv->base.rfDetach             = ar2316RfDetach;
 742         priv->base.writeRegs            = ar2316WriteRegs;
 743         priv->base.getRfBank            = ar2316GetRfBank;
 744         priv->base.setChannel           = ar2316SetChannel;
 745         priv->base.setRfRegs            = ar2316SetRfRegs;
 746         priv->base.setPowerTable        = ar2316SetPowerTable;
 747         priv->base.getChannelMaxMinPower = ar2316GetChannelMaxMinPower;
 748         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 749
 750         ahp->ah_pcdacTable = priv->pcdacTable;
 751         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 752         ahp->ah_rfHal = &priv->base;
 753
 754         ahp->ah_cwCalRequire = AH_TRUE;         /* force initial cal */
 755
 756         return AH_TRUE;
 757 }
 758
 759 static HAL_BOOL
 760 ar2316Probe(struct ath_hal *ah)
 761 {
 762         return IS_2316(ah);
 763 }
 764 AH_RF(RF2316, ar2316Probe, ar2316RfAttach);