sys/dev/ath/ath_hal/ar5212/ar2425.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  * $FreeBSD$
  18  */
  19 #include "opt_ah.h"
  20
  21 #include "ah.h"
  22 #include "ah_internal.h"
  23
  24 #include "ar5212/ar5212.h"
  25 #include "ar5212/ar5212reg.h"
  26 #include "ar5212/ar5212phy.h"
  27
  28 #include "ah_eeprom_v3.h"
  29
  30 #define AH_5212_2425
  31 #define AH_5212_2417
  32 #include "ar5212/ar5212.ini"
  33
  34 #define N(a)    (sizeof(a)/sizeof(a[0]))
  35
  36 struct ar2425State {
  37         RF_HAL_FUNCS    base;           /* public state, must be first */
  38         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  39
  40         uint32_t        Bank1Data[N(ar5212Bank1_2425)];
  41         uint32_t        Bank2Data[N(ar5212Bank2_2425)];
  42         uint32_t        Bank3Data[N(ar5212Bank3_2425)];
  43         uint32_t        Bank6Data[N(ar5212Bank6_2425)]; /* 2417 is same size */
  44         uint32_t        Bank7Data[N(ar5212Bank7_2425)];
  45 };
  46 #define AR2425(ah)      ((struct ar2425State *) AH5212(ah)->ah_rfHal)
  47
  48 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  49                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  50
  51 static void
  52 ar2425WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  53         int writes)
  54 {
  55         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2425, modesIndex, writes);
  56         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2425, 1, writes);
  57         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2425, freqIndex, writes);
  58 #if 0
  59         /*
  60          * for SWAN similar to Condor
  61          * Bit 0 enables link to go to L1 when MAC goes to sleep.
  62          * Bit 3 enables the loop back the link down to reset.
  63          */
  64         if (AH_PRIVATE(ah)->ah_ispcie && && ath_hal_pcieL1SKPEnable) {
  65                 OS_REG_WRITE(ah, AR_PCIE_PMC,
  66                     AR_PCIE_PMC_ENA_L1 | AR_PCIE_PMC_ENA_RESET);
  67         }
  68         /*
  69          * for Standby issue in Swan/Condor.
  70          * Bit 9 (MAC_WOW_PWR_STATE_MASK_D2)to be set to avoid skips
  71          *      before last Training Sequence 2 (TS2)
  72          * Bit 8 (MAC_WOW_PWR_STATE_MASK_D1)to be unset to assert
  73          *      Power Reset along with PCI Reset
  74          */
  75         OS_REG_SET_BIT(ah, AR_PCIE_PMC, MAC_WOW_PWR_STATE_MASK_D2);
  76 #endif
  77 }
  78
  79 /*
  80  * Take the MHz channel value and set the Channel value
  81  *
  82  * ASSUMES: Writes enabled to analog bus
  83  */
  84 static HAL_BOOL
  85 ar2425SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
  86 {
  87         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  88         uint32_t channelSel  = 0;
  89         uint32_t bModeSynth  = 0;
  90         uint32_t aModeRefSel = 0;
  91         uint32_t reg32       = 0;
  92
  93         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  94
  95         if (freq < 4800) {
  96                 uint32_t txctl;
  97
  98         channelSel = freq - 2272;
  99         channelSel = ath_hal_reverseBits(channelSel, 8);
 100
 101                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 102         if (freq == 2484) {
 103                         // Enable channel spreading for channel 14
 104                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 105                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 106                 } else {
 107                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 108                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 109                 }
 110
 111         } else if (((freq % 5) == 2) && (freq <= 5435)) {
 112                 freq = freq - 2; /* Align to even 5MHz raster */
 113                 channelSel = ath_hal_reverseBits(
 114                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 115                 aModeRefSel = ath_hal_reverseBits(0, 2);
 116         } else if ((freq % 20) == 0 && freq >= 5120) {
 117                 channelSel = ath_hal_reverseBits(
 118                         ((freq - 4800) / 20 << 2), 8);
 119                 aModeRefSel = ath_hal_reverseBits(1, 2);
 120         } else if ((freq % 10) == 0) {
 121                 channelSel = ath_hal_reverseBits(
 122                         ((freq - 4800) / 10 << 1), 8);
 123                 aModeRefSel = ath_hal_reverseBits(1, 2);
 124         } else if ((freq % 5) == 0) {
 125                 channelSel = ath_hal_reverseBits(
 126                         (freq - 4800) / 5, 8);
 127                 aModeRefSel = ath_hal_reverseBits(1, 2);
 128         } else {
 129                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 130                     __func__, freq);
 131                 return AH_FALSE;
 132         }
 133
 134         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 135                         (1 << 12) | 0x1;
 136         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 137
 138         reg32 >>= 8;
 139         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 140
 141         AH_PRIVATE(ah)->ah_curchan = chan;
 142         return AH_TRUE;
 143 }
 144
 145 /*
 146  * Reads EEPROM header info from device structure and programs
 147  * all rf registers
 148  *
 149  * REQUIRES: Access to the analog rf device
 150  */
 151 static HAL_BOOL
 152 ar2425SetRfRegs(struct ath_hal *ah,
 153         const struct ieee80211_channel *chan,
 154         uint16_t modesIndex, uint16_t *rfXpdGain)
 155 {
 156 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 157         int i;                                                              \
 158         for (i = 0; i < N(ar5212Bank##_ix##_2425); i++)                     \
 159                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2425[i][_col];\
 160 } while (0)
 161         struct ath_hal_5212 *ahp = AH5212(ah);
 162         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 163         struct ar2425State *priv = AR2425(ah);
 164         uint16_t ob2GHz = 0, db2GHz = 0;
 165         int regWrites = 0;
 166
 167         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 168             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 169
 170         HALASSERT(priv);
 171
 172         /* Setup rf parameters */
 173         if (IEEE80211_IS_CHAN_B(chan)) {
 174                 ob2GHz = ee->ee_obFor24;
 175                 db2GHz = ee->ee_dbFor24;
 176         } else {
 177                 ob2GHz = ee->ee_obFor24g;
 178                 db2GHz = ee->ee_dbFor24g;
 179         }
 180
 181         /* Bank 1 Write */
 182         RF_BANK_SETUP(priv, 1, 1);
 183
 184         /* Bank 2 Write */
 185         RF_BANK_SETUP(priv, 2, modesIndex);
 186
 187         /* Bank 3 Write */
 188         RF_BANK_SETUP(priv, 3, modesIndex);
 189
 190         /* Bank 6 Write */
 191         RF_BANK_SETUP(priv, 6, modesIndex);
 192
 193         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz, 3, 193, 0);
 194         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz, 3, 190, 0);
 195
 196         /* Bank 7 Setup */
 197         RF_BANK_SETUP(priv, 7, modesIndex);
 198
 199         /* Write Analog registers */
 200         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2425, priv->Bank1Data, regWrites);
 201         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2425, priv->Bank2Data, regWrites);
 202         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2425, priv->Bank3Data, regWrites);
 203         if (IS_2417(ah)) {
 204                 HALASSERT(N(ar5212Bank6_2425) == N(ar5212Bank6_2417));
 205                 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2417, priv->Bank6Data,
 206                     regWrites);
 207         } else
 208                 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2425, priv->Bank6Data,
 209                     regWrites);
 210         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2425, priv->Bank7Data, regWrites);
 211
 212         /* Now that we have reprogrammed rfgain value, clear the flag. */
 213         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 214
 215         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "<==%s\n", __func__);
 216         return AH_TRUE;
 217 #undef  RF_BANK_SETUP
 218 }
 219
 220 /*
 221  * Return a reference to the requested RF Bank.
 222  */
 223 static uint32_t *
 224 ar2425GetRfBank(struct ath_hal *ah, int bank)
 225 {
 226         struct ar2425State *priv = AR2425(ah);
 227
 228         HALASSERT(priv != AH_NULL);
 229         switch (bank) {
 230         case 1: return priv->Bank1Data;
 231         case 2: return priv->Bank2Data;
 232         case 3: return priv->Bank3Data;
 233         case 6: return priv->Bank6Data;
 234         case 7: return priv->Bank7Data;
 235         }
 236         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 237             __func__, bank);
 238         return AH_NULL;
 239 }
 240
 241 /*
 242  * Return indices surrounding the value in sorted integer lists.
 243  *
 244  * NB: the input list is assumed to be sorted in ascending order
 245  */
 246 static void
 247 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 248                           uint32_t *vlo, uint32_t *vhi)
 249 {
 250         int16_t target = v;
 251         const uint16_t *ep = lp+listSize;
 252         const uint16_t *tp;
 253
 254         /*
 255          * Check first and last elements for out-of-bounds conditions.
 256          */
 257         if (target < lp[0]) {
 258                 *vlo = *vhi = 0;
 259                 return;
 260         }
 261         if (target >= ep[-1]) {
 262                 *vlo = *vhi = listSize - 1;
 263                 return;
 264         }
 265
 266         /* look for value being near or between 2 values in list */
 267         for (tp = lp; tp < ep; tp++) {
 268                 /*
 269                  * If value is close to the current value of the list
 270                  * then target is not between values, it is one of the values
 271                  */
 272                 if (*tp == target) {
 273                         *vlo = *vhi = tp - (const uint16_t *) lp;
 274                         return;
 275                 }
 276                 /*
 277                  * Look for value being between current value and next value
 278                  * if so return these 2 values
 279                  */
 280                 if (target < tp[1]) {
 281                         *vlo = tp - (const uint16_t *) lp;
 282                         *vhi = *vlo + 1;
 283                         return;
 284                 }
 285         }
 286 }
 287
 288 /*
 289  * Fill the Vpdlist for indices Pmax-Pmin
 290  */
 291 static HAL_BOOL
 292 ar2425FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 293                    const int16_t *pwrList, const uint16_t *VpdList,
 294                    uint16_t numIntercepts,
 295                    uint16_t retVpdList[][64])
 296 {
 297         uint16_t ii, jj, kk;
 298         int16_t currPwr = (int16_t)(2*Pmin);
 299         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 300         uint32_t  idxL, idxR;
 301
 302         ii = 0;
 303         jj = 0;
 304
 305         if (numIntercepts < 2)
 306                 return AH_FALSE;
 307
 308         while (ii <= (uint16_t)(Pmax - Pmin)) {
 309                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 310                                    numIntercepts, &(idxL), &(idxR));
 311                 if (idxR < 1)
 312                         idxR = 1;                       /* extrapolate below */
 313                 if (idxL == (uint32_t)(numIntercepts - 1))
 314                         idxL = numIntercepts - 2;       /* extrapolate above */
 315                 if (pwrList[idxL] == pwrList[idxR])
 316                         kk = VpdList[idxL];
 317                 else
 318                         kk = (uint16_t)
 319                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 320                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 321                                  (pwrList[idxR] - pwrList[idxL]));
 322                 retVpdList[pdGainIdx][ii] = kk;
 323                 ii++;
 324                 currPwr += 2;                           /* half dB steps */
 325         }
 326
 327         return AH_TRUE;
 328 }
 329
 330 /*
 331  * Returns interpolated or the scaled up interpolated value
 332  */
 333 static int16_t
 334 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 335         int16_t targetLeft, int16_t targetRight)
 336 {
 337         int16_t rv;
 338
 339         if (srcRight != srcLeft) {
 340                 rv = ((target - srcLeft)*targetRight +
 341                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 342         } else {
 343                 rv = targetLeft;
 344         }
 345         return rv;
 346 }
 347
 348 /*
 349  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 350  * Called by ar2425SetPowerTable()
 351  */
 352 static void
 353 ar2425getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 354                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 355                 uint16_t pdGainOverlap_t2,
 356                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 357                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 358 {
 359     /* Note the items statically allocated below are to reduce stack usage */
 360         uint32_t ii, jj, kk;
 361         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 362         uint32_t idxL, idxR;
 363         uint32_t numPdGainsUsed = 0;
 364         static uint16_t VpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 365         /* filled out Vpd table for all pdGains (chanL) */
 366         static uint16_t VpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 367         /* filled out Vpd table for all pdGains (chanR) */
 368         static uint16_t VpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 369         /* filled out Vpd table for all pdGains (interpolated) */
 370         /*
 371          * If desired to support -ve power levels in future, just
 372          * change pwr_I_0 to signed 5-bits.
 373          */
 374         static int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 375         /* to accomodate -ve power levels later on. */
 376         static 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         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "==>%s:\n", __func__);
 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                         ar2425FillVpdTable(
 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                         ar2425FillVpdTable(
 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
 438                 /* Find starting index for this pdGain */
 439                 if (ii == 0)
 440                         ss = 0; /* for the first pdGain, start from index 0 */
 441                 else
 442                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 443                                 pdGainOverlap_t2;
 444                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 445                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 446                 /*
 447                  *-ve ss indicates need to extrapolate data below for this pdGain
 448                  */
 449                 while (ss < 0) {
 450                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 451                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 452                         ss++;
 453                 }
 454
 455                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 456                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 457                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 458
 459                 while (ss < (int16_t)maxIndex)
 460                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 461
 462                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 463                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 464                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 465                 /*
 466                  * for last gain, pdGainBoundary == Pmax_t2, so will
 467                  * have to extrapolate
 468                  */
 469                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 470                         while(ss < (int16_t)tgtIndex) {
 471                                 tmpVal = (uint16_t)
 472                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 473                                          (ss-maxIndex)*Vpd_step);
 474                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 475                                         127 : tmpVal;
 476                                 ss++;
 477                         }
 478                 }                               /* extrapolated above */
 479         }                                       /* for all pdGainUsed */
 480
 481         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 482                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 483                 ii++;
 484         }
 485         while (kk < 128) {
 486                 pPDADCValues[kk] = pPDADCValues[kk-1];
 487                 kk++;
 488         }
 489
 490         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "<==%s\n", __func__);
 491 }
 492
 493
 494 /* Same as 2413 set power table */
 495 static HAL_BOOL
 496 ar2425SetPowerTable(struct ath_hal *ah,
 497         int16_t *minPower, int16_t *maxPower,
 498         const struct ieee80211_channel *chan,
 499         uint16_t *rfXpdGain)
 500 {
 501         uint16_t freq = ath_hal_gethwchannel(ah, chan);
 502         struct ath_hal_5212 *ahp = AH5212(ah);
 503         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 504         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 505         uint16_t pdGainOverlap_t2;
 506         int16_t minCalPower2413_t2;
 507         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 508         uint16_t gainBoundaries[4];
 509         uint32_t i, reg32, regoffset;
 510
 511         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s:chan 0x%x flag 0x%x\n",
 512             __func__, freq, chan->ic_flags);
 513
 514         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 515                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 516         else if (IEEE80211_IS_CHAN_B(chan))
 517                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 518         else {
 519                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s:illegal mode\n", __func__);
 520                 return AH_FALSE;
 521         }
 522
 523         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 524                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 525
 526         ar2425getGainBoundariesAndPdadcsForPowers(ah, freq,
 527                 pRawDataset, pdGainOverlap_t2,&minCalPower2413_t2,gainBoundaries,
 528                 rfXpdGain, pdadcValues);
 529
 530         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 531                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 532
 533         /*
 534          * Note the pdadc table may not start at 0 dBm power, could be
 535          * negative or greater than 0.  Need to offset the power
 536          * values by the amount of minPower for griffin
 537          */
 538         if (minCalPower2413_t2 != 0)
 539                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2);
 540         else
 541                 ahp->ah_txPowerIndexOffset = 0;
 542
 543         /* Finally, write the power values into the baseband power table */
 544         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 545         for (i = 0; i < 32; i++) {
 546                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 547                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 548                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 549                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 550                 OS_REG_WRITE(ah, regoffset, reg32);
 551                 regoffset += 4;
 552         }
 553
 554         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 555                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 556                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 557                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 558                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 559                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 560
 561         return AH_TRUE;
 562 }
 563
 564 static int16_t
 565 ar2425GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 566 {
 567         uint32_t ii,jj;
 568         uint16_t Pmin=0,numVpd;
 569
 570         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 571                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 572                 /* work backwards 'cause highest pdGain for lowest power */
 573                 numVpd = data->pDataPerPDGain[jj].numVpd;
 574                 if (numVpd > 0) {
 575                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 576                         return(Pmin);
 577                 }
 578         }
 579         return(Pmin);
 580 }
 581
 582 static int16_t
 583 ar2425GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 584 {
 585         uint32_t ii;
 586         uint16_t Pmax=0,numVpd;
 587
 588         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 589                 /* work forwards cuase lowest pdGain for highest power */
 590                 numVpd = data->pDataPerPDGain[ii].numVpd;
 591                 if (numVpd > 0) {
 592                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 593                         return(Pmax);
 594                 }
 595         }
 596         return(Pmax);
 597 }
 598
 599 static
 600 HAL_BOOL
 601 ar2425GetChannelMaxMinPower(struct ath_hal *ah,
 602         const struct ieee80211_channel *chan,
 603         int16_t *maxPow, int16_t *minPow)
 604 {
 605         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 606         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 607         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 608         const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL;
 609         uint16_t numChannels;
 610         int totalD,totalF, totalMin,last, i;
 611
 612         *maxPow = 0;
 613
 614         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 615                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 616         else if (IEEE80211_IS_CHAN_B(chan))
 617                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 618         else
 619                 return(AH_FALSE);
 620
 621         numChannels = pRawDataset->numChannels;
 622         data = pRawDataset->pDataPerChannel;
 623
 624         /* Make sure the channel is in the range of the TP values
 625          *  (freq piers)
 626          */
 627         if (numChannels < 1)
 628                 return(AH_FALSE);
 629
 630         if ((freq < data[0].channelValue) ||
 631             (freq > data[numChannels-1].channelValue)) {
 632                 if (freq < data[0].channelValue) {
 633                         *maxPow = ar2425GetMaxPower(ah, &data[0]);
 634                         *minPow = ar2425GetMinPower(ah, &data[0]);
 635                         return(AH_TRUE);
 636                 } else {
 637                         *maxPow = ar2425GetMaxPower(ah, &data[numChannels - 1]);
 638                         *minPow = ar2425GetMinPower(ah, &data[numChannels - 1]);
 639                         return(AH_TRUE);
 640                 }
 641         }
 642
 643         /* Linearly interpolate the power value now */
 644         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 645              last = i++);
 646         totalD = data[i].channelValue - data[last].channelValue;
 647         if (totalD > 0) {
 648                 totalF = ar2425GetMaxPower(ah, &data[i]) - ar2425GetMaxPower(ah, &data[last]);
 649                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 650                                      ar2425GetMaxPower(ah, &data[last])*totalD)/totalD);
 651                 totalMin = ar2425GetMinPower(ah, &data[i]) - ar2425GetMinPower(ah, &data[last]);
 652                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 653                                      ar2425GetMinPower(ah, &data[last])*totalD)/totalD);
 654                 return(AH_TRUE);
 655         } else {
 656                 if (freq == data[i].channelValue) {
 657                         *maxPow = ar2425GetMaxPower(ah, &data[i]);
 658                         *minPow = ar2425GetMinPower(ah, &data[i]);
 659                         return(AH_TRUE);
 660                 } else
 661                         return(AH_FALSE);
 662         }
 663 }
 664
 665 /*
 666  * Free memory for analog bank scratch buffers
 667  */
 668 static void
 669 ar2425RfDetach(struct ath_hal *ah)
 670 {
 671         struct ath_hal_5212 *ahp = AH5212(ah);
 672
 673         HALASSERT(ahp->ah_rfHal != AH_NULL);
 674         ath_hal_free(ahp->ah_rfHal);
 675         ahp->ah_rfHal = AH_NULL;
 676 }
 677
 678 /*
 679  * Allocate memory for analog bank scratch buffers
 680  * Scratch Buffer will be reinitialized every reset so no need to zero now
 681  */
 682 static HAL_BOOL
 683 ar2425RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 684 {
 685         struct ath_hal_5212 *ahp = AH5212(ah);
 686         struct ar2425State *priv;
 687
 688         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 689
 690         HALASSERT(ahp->ah_rfHal == AH_NULL);
 691         priv = ath_hal_malloc(sizeof(struct ar2425State));
 692         if (priv == AH_NULL) {
 693                 HALDEBUG(ah, HAL_DEBUG_ANY,
 694                     "%s: cannot allocate private state\n", __func__);
 695                 *status = HAL_ENOMEM;           /* XXX */
 696                 return AH_FALSE;
 697         }
 698         priv->base.rfDetach             = ar2425RfDetach;
 699         priv->base.writeRegs            = ar2425WriteRegs;
 700         priv->base.getRfBank            = ar2425GetRfBank;
 701         priv->base.setChannel           = ar2425SetChannel;
 702         priv->base.setRfRegs            = ar2425SetRfRegs;
 703         priv->base.setPowerTable        = ar2425SetPowerTable;
 704         priv->base.getChannelMaxMinPower = ar2425GetChannelMaxMinPower;
 705         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 706
 707         ahp->ah_pcdacTable = priv->pcdacTable;
 708         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 709         ahp->ah_rfHal = &priv->base;
 710
 711         return AH_TRUE;
 712 }
 713
 714 static HAL_BOOL
 715 ar2425Probe(struct ath_hal *ah)
 716 {
 717         return IS_2425(ah) || IS_2417(ah);
 718 }
 719 AH_RF(RF2425, ar2425Probe, ar2425RfAttach);