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