sys/dev/netif/ath/hal/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: head/sys/dev/ath/ath_hal/ar5212/ar2425.c 188979 2009-02-24 01:07:06Z 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_2425
  32 #define AH_5212_2417
  33 #include "ar5212/ar5212.ini"
  34
  35 struct ar2425State {
  36         RF_HAL_FUNCS    base;           /* public state, must be first */
  37         uint16_t        pcdacTable[PWR_TABLE_SIZE_2413];
  38
  39         uint32_t        Bank1Data[NELEM(ar5212Bank1_2425)];
  40         uint32_t        Bank2Data[NELEM(ar5212Bank2_2425)];
  41         uint32_t        Bank3Data[NELEM(ar5212Bank3_2425)];
  42         uint32_t        Bank6Data[NELEM(ar5212Bank6_2425)];     /* 2417 is same size */
  43         uint32_t        Bank7Data[NELEM(ar5212Bank7_2425)];
  44 };
  45 #define AR2425(ah)      ((struct ar2425State *) AH5212(ah)->ah_rfHal)
  46
  47 extern  void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
  48                 uint32_t numBits, uint32_t firstBit, uint32_t column);
  49
  50 static void
  51 ar2425WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
  52         int writes)
  53 {
  54         HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2425, modesIndex, writes);
  55         HAL_INI_WRITE_ARRAY(ah, ar5212Common_2425, 1, writes);
  56         HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2425, freqIndex, writes);
  57 #if 0
  58         /*
  59          * for SWAN similar to Condor
  60          * Bit 0 enables link to go to L1 when MAC goes to sleep.
  61          * Bit 3 enables the loop back the link down to reset.
  62          */
  63         if (AH_PRIVATE(ah)->ah_ispcie && && ath_hal_pcieL1SKPEnable) {
  64                 OS_REG_WRITE(ah, AR_PCIE_PMC,
  65                     AR_PCIE_PMC_ENA_L1 | AR_PCIE_PMC_ENA_RESET);
  66         }
  67         /*
  68          * for Standby issue in Swan/Condor.
  69          * Bit 9 (MAC_WOW_PWR_STATE_MASK_D2)to be set to avoid skips
  70          *      before last Training Sequence 2 (TS2)
  71          * Bit 8 (MAC_WOW_PWR_STATE_MASK_D1)to be unset to assert
  72          *      Power Reset along with PCI Reset
  73          */
  74         OS_REG_SET_BIT(ah, AR_PCIE_PMC, MAC_WOW_PWR_STATE_MASK_D2);
  75 #endif
  76 }
  77
  78 /*
  79  * Take the MHz channel value and set the Channel value
  80  *
  81  * ASSUMES: Writes enabled to analog bus
  82  */
  83 static HAL_BOOL
  84 ar2425SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
  85 {
  86         uint16_t freq = ath_hal_gethwchannel(ah, chan);
  87         uint32_t channelSel  = 0;
  88         uint32_t bModeSynth  = 0;
  89         uint32_t aModeRefSel = 0;
  90         uint32_t reg32       = 0;
  91
  92         OS_MARK(ah, AH_MARK_SETCHANNEL, freq);
  93
  94         if (freq < 4800) {
  95                 uint32_t txctl;
  96
  97         channelSel = freq - 2272;
  98         channelSel = ath_hal_reverseBits(channelSel, 8);
  99
 100                 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 101         if (freq == 2484) {
 102                         // Enable channel spreading for channel 14
 103                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 104                                 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 105                 } else {
 106                         OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 107                                 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
 108                 }
 109
 110         } else if (((freq % 5) == 2) && (freq <= 5435)) {
 111                 freq = freq - 2; /* Align to even 5MHz raster */
 112                 channelSel = ath_hal_reverseBits(
 113                         (uint32_t)(((freq - 4800)*10)/25 + 1), 8);
 114                 aModeRefSel = ath_hal_reverseBits(0, 2);
 115         } else if ((freq % 20) == 0 && freq >= 5120) {
 116                 channelSel = ath_hal_reverseBits(
 117                         ((freq - 4800) / 20 << 2), 8);
 118                 aModeRefSel = ath_hal_reverseBits(1, 2);
 119         } else if ((freq % 10) == 0) {
 120                 channelSel = ath_hal_reverseBits(
 121                         ((freq - 4800) / 10 << 1), 8);
 122                 aModeRefSel = ath_hal_reverseBits(1, 2);
 123         } else if ((freq % 5) == 0) {
 124                 channelSel = ath_hal_reverseBits(
 125                         (freq - 4800) / 5, 8);
 126                 aModeRefSel = ath_hal_reverseBits(1, 2);
 127         } else {
 128                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
 129                     __func__, freq);
 130                 return AH_FALSE;
 131         }
 132
 133         reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
 134                         (1 << 12) | 0x1;
 135         OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
 136
 137         reg32 >>= 8;
 138         OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
 139
 140         AH_PRIVATE(ah)->ah_curchan = chan;
 141         return AH_TRUE;
 142 }
 143
 144 /*
 145  * Reads EEPROM header info from device structure and programs
 146  * all rf registers
 147  *
 148  * REQUIRES: Access to the analog rf device
 149  */
 150 static HAL_BOOL
 151 ar2425SetRfRegs(struct ath_hal *ah,
 152         const struct ieee80211_channel *chan,
 153         uint16_t modesIndex, uint16_t *rfXpdGain)
 154 {
 155 #define RF_BANK_SETUP(_priv, _ix, _col) do {                                \
 156         int i;                                                              \
 157         for (i = 0; i < NELEM(ar5212Bank##_ix##_2425); i++)                 \
 158                 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2425[i][_col];\
 159 } while (0)
 160         struct ath_hal_5212 *ahp = AH5212(ah);
 161         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 162         struct ar2425State *priv = AR2425(ah);
 163         uint16_t ob2GHz = 0, db2GHz = 0;
 164         int regWrites = 0;
 165
 166         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n",
 167             __func__, chan->ic_freq, chan->ic_flags, modesIndex);
 168
 169         HALASSERT(priv);
 170
 171         /* Setup rf parameters */
 172         if (IEEE80211_IS_CHAN_B(chan)) {
 173                 ob2GHz = ee->ee_obFor24;
 174                 db2GHz = ee->ee_dbFor24;
 175         } else {
 176                 ob2GHz = ee->ee_obFor24g;
 177                 db2GHz = ee->ee_dbFor24g;
 178         }
 179
 180         /* Bank 1 Write */
 181         RF_BANK_SETUP(priv, 1, 1);
 182
 183         /* Bank 2 Write */
 184         RF_BANK_SETUP(priv, 2, modesIndex);
 185
 186         /* Bank 3 Write */
 187         RF_BANK_SETUP(priv, 3, modesIndex);
 188
 189         /* Bank 6 Write */
 190         RF_BANK_SETUP(priv, 6, modesIndex);
 191
 192         ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz, 3, 193, 0);
 193         ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz, 3, 190, 0);
 194
 195         /* Bank 7 Setup */
 196         RF_BANK_SETUP(priv, 7, modesIndex);
 197
 198         /* Write Analog registers */
 199         HAL_INI_WRITE_BANK(ah, ar5212Bank1_2425, priv->Bank1Data, regWrites);
 200         HAL_INI_WRITE_BANK(ah, ar5212Bank2_2425, priv->Bank2Data, regWrites);
 201         HAL_INI_WRITE_BANK(ah, ar5212Bank3_2425, priv->Bank3Data, regWrites);
 202         if (IS_2417(ah)) {
 203                 HALASSERT(NELEM(ar5212Bank6_2425) == NELEM(ar5212Bank6_2417));
 204                 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2417, priv->Bank6Data,
 205                     regWrites);
 206         } else
 207                 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2425, priv->Bank6Data,
 208                     regWrites);
 209         HAL_INI_WRITE_BANK(ah, ar5212Bank7_2425, priv->Bank7Data, regWrites);
 210
 211         /* Now that we have reprogrammed rfgain value, clear the flag. */
 212         ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
 213
 214         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "<==%s\n", __func__);
 215         return AH_TRUE;
 216 #undef  RF_BANK_SETUP
 217 }
 218
 219 /*
 220  * Return a reference to the requested RF Bank.
 221  */
 222 static uint32_t *
 223 ar2425GetRfBank(struct ath_hal *ah, int bank)
 224 {
 225         struct ar2425State *priv = AR2425(ah);
 226
 227         HALASSERT(priv != AH_NULL);
 228         switch (bank) {
 229         case 1: return priv->Bank1Data;
 230         case 2: return priv->Bank2Data;
 231         case 3: return priv->Bank3Data;
 232         case 6: return priv->Bank6Data;
 233         case 7: return priv->Bank7Data;
 234         }
 235         HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
 236             __func__, bank);
 237         return AH_NULL;
 238 }
 239
 240 /*
 241  * Return indices surrounding the value in sorted integer lists.
 242  *
 243  * NB: the input list is assumed to be sorted in ascending order
 244  */
 245 static void
 246 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
 247                           uint32_t *vlo, uint32_t *vhi)
 248 {
 249         int16_t target = v;
 250         const uint16_t *ep = lp+listSize;
 251         const uint16_t *tp;
 252
 253         /*
 254          * Check first and last elements for out-of-bounds conditions.
 255          */
 256         if (target < lp[0]) {
 257                 *vlo = *vhi = 0;
 258                 return;
 259         }
 260         if (target >= ep[-1]) {
 261                 *vlo = *vhi = listSize - 1;
 262                 return;
 263         }
 264
 265         /* look for value being near or between 2 values in list */
 266         for (tp = lp; tp < ep; tp++) {
 267                 /*
 268                  * If value is close to the current value of the list
 269                  * then target is not between values, it is one of the values
 270                  */
 271                 if (*tp == target) {
 272                         *vlo = *vhi = tp - (const uint16_t *) lp;
 273                         return;
 274                 }
 275                 /*
 276                  * Look for value being between current value and next value
 277                  * if so return these 2 values
 278                  */
 279                 if (target < tp[1]) {
 280                         *vlo = tp - (const uint16_t *) lp;
 281                         *vhi = *vlo + 1;
 282                         return;
 283                 }
 284         }
 285 }
 286
 287 /*
 288  * Fill the Vpdlist for indices Pmax-Pmin
 289  */
 290 static HAL_BOOL
 291 ar2425FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
 292                    const int16_t *pwrList, const uint16_t *VpdList,
 293                    uint16_t numIntercepts,
 294                    uint16_t retVpdList[][64])
 295 {
 296         uint16_t ii, jj, kk;
 297         int16_t currPwr = (int16_t)(2*Pmin);
 298         /* since Pmin is pwr*2 and pwrList is 4*pwr */
 299         uint32_t  idxL, idxR;
 300
 301         ii = 0;
 302         jj = 0;
 303
 304         if (numIntercepts < 2)
 305                 return AH_FALSE;
 306
 307         while (ii <= (uint16_t)(Pmax - Pmin)) {
 308                 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
 309                                    numIntercepts, &(idxL), &(idxR));
 310                 if (idxR < 1)
 311                         idxR = 1;                       /* extrapolate below */
 312                 if (idxL == (uint32_t)(numIntercepts - 1))
 313                         idxL = numIntercepts - 2;       /* extrapolate above */
 314                 if (pwrList[idxL] == pwrList[idxR])
 315                         kk = VpdList[idxL];
 316                 else
 317                         kk = (uint16_t)
 318                                 (((currPwr - pwrList[idxL])*VpdList[idxR]+
 319                                   (pwrList[idxR] - currPwr)*VpdList[idxL])/
 320                                  (pwrList[idxR] - pwrList[idxL]));
 321                 retVpdList[pdGainIdx][ii] = kk;
 322                 ii++;
 323                 currPwr += 2;                           /* half dB steps */
 324         }
 325
 326         return AH_TRUE;
 327 }
 328
 329 /*
 330  * Returns interpolated or the scaled up interpolated value
 331  */
 332 static int16_t
 333 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
 334         int16_t targetLeft, int16_t targetRight)
 335 {
 336         int16_t rv;
 337
 338         if (srcRight != srcLeft) {
 339                 rv = ((target - srcLeft)*targetRight +
 340                       (srcRight - target)*targetLeft) / (srcRight - srcLeft);
 341         } else {
 342                 rv = targetLeft;
 343         }
 344         return rv;
 345 }
 346
 347 /*
 348  * Uses the data points read from EEPROM to reconstruct the pdadc power table
 349  * Called by ar2425SetPowerTable()
 350  */
 351 static void
 352 ar2425getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
 353                 const RAW_DATA_STRUCT_2413 *pRawDataset,
 354                 uint16_t pdGainOverlap_t2,
 355                 int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
 356                 uint16_t pPdGainValues[], uint16_t pPDADCValues[])
 357 {
 358     /* Note the items statically allocated below are to reduce stack usage */
 359         uint32_t ii, jj, kk;
 360         int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
 361         uint32_t idxL, idxR;
 362         uint32_t numPdGainsUsed = 0;
 363         static uint16_t VpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 364         /* filled out Vpd table for all pdGains (chanL) */
 365         static uint16_t VpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 366         /* filled out Vpd table for all pdGains (chanR) */
 367         static uint16_t VpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL][MAX_PWR_RANGE_IN_HALF_DB];
 368         /* filled out Vpd table for all pdGains (interpolated) */
 369         /*
 370          * If desired to support -ve power levels in future, just
 371          * change pwr_I_0 to signed 5-bits.
 372          */
 373         static int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 374         /* to accomodate -ve power levels later on. */
 375         static int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
 376         /* to accomodate -ve power levels later on */
 377         uint16_t numVpd = 0;
 378         uint16_t Vpd_step;
 379         int16_t tmpVal ;
 380         uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
 381
 382         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "==>%s:\n", __func__);
 383
 384         /* Get upper lower index */
 385         GetLowerUpperIndex(channel, pRawDataset->pChannels,
 386                                  pRawDataset->numChannels, &(idxL), &(idxR));
 387
 388         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 389                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 390                 /* work backwards 'cause highest pdGain for lowest power */
 391                 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
 392                 if (numVpd > 0) {
 393                         pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
 394                         Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
 395                         if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
 396                                 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
 397                         }
 398                         Pmin_t2[numPdGainsUsed] = (int16_t)
 399                                 (Pmin_t2[numPdGainsUsed] / 2);
 400                         Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 401                         if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
 402                                 Pmax_t2[numPdGainsUsed] =
 403                                         pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
 404                         Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
 405                         ar2425FillVpdTable(
 406                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 407                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
 408                                            &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
 409                                            );
 410                         ar2425FillVpdTable(
 411                                            numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
 412                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
 413                                            &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
 414                                            );
 415                         for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
 416                                 VpdTable_I[numPdGainsUsed][kk] =
 417                                         interpolate_signed(
 418                                                            channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
 419                                                            (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
 420                         }
 421                         /* fill VpdTable_I for this pdGain */
 422                         numPdGainsUsed++;
 423                 }
 424                 /* if this pdGain is used */
 425         }
 426
 427         *pMinCalPower = Pmin_t2[0];
 428         kk = 0; /* index for the final table */
 429         for (ii = 0; ii < numPdGainsUsed; ii++) {
 430                 if (ii == (numPdGainsUsed - 1))
 431                         pPdGainBoundaries[ii] = Pmax_t2[ii] +
 432                                 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
 433                 else
 434                         pPdGainBoundaries[ii] = (uint16_t)
 435                                 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
 436
 437                 /* Find starting index for this pdGain */
 438                 if (ii == 0)
 439                         ss = 0; /* for the first pdGain, start from index 0 */
 440                 else
 441                         ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
 442                                 pdGainOverlap_t2;
 443                 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
 444                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 445                 /*
 446                  *-ve ss indicates need to extrapolate data below for this pdGain
 447                  */
 448                 while (ss < 0) {
 449                         tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
 450                         pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
 451                         ss++;
 452                 }
 453
 454                 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
 455                 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
 456                 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
 457
 458                 while (ss < (int16_t)maxIndex)
 459                         pPDADCValues[kk++] = VpdTable_I[ii][ss++];
 460
 461                 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
 462                                        VpdTable_I[ii][sizeCurrVpdTable-2]);
 463                 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
 464                 /*
 465                  * for last gain, pdGainBoundary == Pmax_t2, so will
 466                  * have to extrapolate
 467                  */
 468                 if (tgtIndex > maxIndex) {      /* need to extrapolate above */
 469                         while(ss < (int16_t)tgtIndex) {
 470                                 tmpVal = (uint16_t)
 471                                         (VpdTable_I[ii][sizeCurrVpdTable-1] +
 472                                          (ss-maxIndex)*Vpd_step);
 473                                 pPDADCValues[kk++] = (tmpVal > 127) ?
 474                                         127 : tmpVal;
 475                                 ss++;
 476                         }
 477                 }                               /* extrapolated above */
 478         }                                       /* for all pdGainUsed */
 479
 480         while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
 481                 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
 482                 ii++;
 483         }
 484         while (kk < 128) {
 485                 pPDADCValues[kk] = pPDADCValues[kk-1];
 486                 kk++;
 487         }
 488
 489         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "<==%s\n", __func__);
 490 }
 491
 492
 493 /* Same as 2413 set power table */
 494 static HAL_BOOL
 495 ar2425SetPowerTable(struct ath_hal *ah,
 496         int16_t *minPower, int16_t *maxPower,
 497         const struct ieee80211_channel *chan,
 498         uint16_t *rfXpdGain)
 499 {
 500         uint16_t freq = ath_hal_gethwchannel(ah, chan);
 501         struct ath_hal_5212 *ahp = AH5212(ah);
 502         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 503         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 504         uint16_t pdGainOverlap_t2;
 505         int16_t minCalPower2413_t2;
 506         uint16_t *pdadcValues = ahp->ah_pcdacTable;
 507         uint16_t gainBoundaries[4];
 508         uint32_t i, reg32, regoffset;
 509
 510         HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s:chan 0x%x flag 0x%x\n",
 511             __func__, freq, chan->ic_flags);
 512
 513         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 514                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 515         else if (IEEE80211_IS_CHAN_B(chan))
 516                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 517         else {
 518                 HALDEBUG(ah, HAL_DEBUG_ANY, "%s:illegal mode\n", __func__);
 519                 return AH_FALSE;
 520         }
 521
 522         pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
 523                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
 524
 525         ar2425getGainBoundariesAndPdadcsForPowers(ah, freq,
 526                 pRawDataset, pdGainOverlap_t2,&minCalPower2413_t2,gainBoundaries,
 527                 rfXpdGain, pdadcValues);
 528
 529         OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
 530                          (pRawDataset->pDataPerChannel[0].numPdGains - 1));
 531
 532         /*
 533          * Note the pdadc table may not start at 0 dBm power, could be
 534          * negative or greater than 0.  Need to offset the power
 535          * values by the amount of minPower for griffin
 536          */
 537         if (minCalPower2413_t2 != 0)
 538                 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2);
 539         else
 540                 ahp->ah_txPowerIndexOffset = 0;
 541
 542         /* Finally, write the power values into the baseband power table */
 543         regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
 544         for (i = 0; i < 32; i++) {
 545                 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
 546                         ((pdadcValues[4*i + 1] & 0xFF) << 8)  |
 547                         ((pdadcValues[4*i + 2] & 0xFF) << 16) |
 548                         ((pdadcValues[4*i + 3] & 0xFF) << 24) ;
 549                 OS_REG_WRITE(ah, regoffset, reg32);
 550                 regoffset += 4;
 551         }
 552
 553         OS_REG_WRITE(ah, AR_PHY_TPCRG5,
 554                      SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
 555                      SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
 556                      SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
 557                      SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
 558                      SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
 559
 560         return AH_TRUE;
 561 }
 562
 563 static int16_t
 564 ar2425GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 565 {
 566         uint32_t ii,jj;
 567         uint16_t Pmin=0,numVpd;
 568
 569         for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 570                 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
 571                 /* work backwards 'cause highest pdGain for lowest power */
 572                 numVpd = data->pDataPerPDGain[jj].numVpd;
 573                 if (numVpd > 0) {
 574                         Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
 575                         return(Pmin);
 576                 }
 577         }
 578         return(Pmin);
 579 }
 580
 581 static int16_t
 582 ar2425GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
 583 {
 584         uint32_t ii;
 585         uint16_t Pmax=0,numVpd;
 586
 587         for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
 588                 /* work forwards cuase lowest pdGain for highest power */
 589                 numVpd = data->pDataPerPDGain[ii].numVpd;
 590                 if (numVpd > 0) {
 591                         Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
 592                         return(Pmax);
 593                 }
 594         }
 595         return(Pmax);
 596 }
 597
 598 static
 599 HAL_BOOL
 600 ar2425GetChannelMaxMinPower(struct ath_hal *ah,
 601         const struct ieee80211_channel *chan,
 602         int16_t *maxPow, int16_t *minPow)
 603 {
 604         uint16_t freq = chan->ic_freq;          /* NB: never mapped */
 605         const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
 606         const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
 607         const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL;
 608         uint16_t numChannels;
 609         int totalD,totalF, totalMin,last, i;
 610
 611         *maxPow = 0;
 612
 613         if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan))
 614                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
 615         else if (IEEE80211_IS_CHAN_B(chan))
 616                 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
 617         else
 618                 return(AH_FALSE);
 619
 620         numChannels = pRawDataset->numChannels;
 621         data = pRawDataset->pDataPerChannel;
 622
 623         /* Make sure the channel is in the range of the TP values
 624          *  (freq piers)
 625          */
 626         if (numChannels < 1)
 627                 return(AH_FALSE);
 628
 629         if ((freq < data[0].channelValue) ||
 630             (freq > data[numChannels-1].channelValue)) {
 631                 if (freq < data[0].channelValue) {
 632                         *maxPow = ar2425GetMaxPower(ah, &data[0]);
 633                         *minPow = ar2425GetMinPower(ah, &data[0]);
 634                         return(AH_TRUE);
 635                 } else {
 636                         *maxPow = ar2425GetMaxPower(ah, &data[numChannels - 1]);
 637                         *minPow = ar2425GetMinPower(ah, &data[numChannels - 1]);
 638                         return(AH_TRUE);
 639                 }
 640         }
 641
 642         /* Linearly interpolate the power value now */
 643         for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue);
 644              last = i++);
 645         totalD = data[i].channelValue - data[last].channelValue;
 646         if (totalD > 0) {
 647                 totalF = ar2425GetMaxPower(ah, &data[i]) - ar2425GetMaxPower(ah, &data[last]);
 648                 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) +
 649                                      ar2425GetMaxPower(ah, &data[last])*totalD)/totalD);
 650                 totalMin = ar2425GetMinPower(ah, &data[i]) - ar2425GetMinPower(ah, &data[last]);
 651                 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) +
 652                                      ar2425GetMinPower(ah, &data[last])*totalD)/totalD);
 653                 return(AH_TRUE);
 654         } else {
 655                 if (freq == data[i].channelValue) {
 656                         *maxPow = ar2425GetMaxPower(ah, &data[i]);
 657                         *minPow = ar2425GetMinPower(ah, &data[i]);
 658                         return(AH_TRUE);
 659                 } else
 660                         return(AH_FALSE);
 661         }
 662 }
 663
 664 /*
 665  * Free memory for analog bank scratch buffers
 666  */
 667 static void
 668 ar2425RfDetach(struct ath_hal *ah)
 669 {
 670         struct ath_hal_5212 *ahp = AH5212(ah);
 671
 672         HALASSERT(ahp->ah_rfHal != AH_NULL);
 673         ath_hal_free(ahp->ah_rfHal);
 674         ahp->ah_rfHal = AH_NULL;
 675 }
 676
 677 /*
 678  * Allocate memory for analog bank scratch buffers
 679  * Scratch Buffer will be reinitialized every reset so no need to zero now
 680  */
 681 static HAL_BOOL
 682 ar2425RfAttach(struct ath_hal *ah, HAL_STATUS *status)
 683 {
 684         struct ath_hal_5212 *ahp = AH5212(ah);
 685         struct ar2425State *priv;
 686
 687         HALASSERT(ah->ah_magic == AR5212_MAGIC);
 688
 689         HALASSERT(ahp->ah_rfHal == AH_NULL);
 690         priv = ath_hal_malloc(sizeof(struct ar2425State));
 691         if (priv == AH_NULL) {
 692                 HALDEBUG(ah, HAL_DEBUG_ANY,
 693                     "%s: cannot allocate private state\n", __func__);
 694                 *status = HAL_ENOMEM;           /* XXX */
 695                 return AH_FALSE;
 696         }
 697         priv->base.rfDetach             = ar2425RfDetach;
 698         priv->base.writeRegs            = ar2425WriteRegs;
 699         priv->base.getRfBank            = ar2425GetRfBank;
 700         priv->base.setChannel           = ar2425SetChannel;
 701         priv->base.setRfRegs            = ar2425SetRfRegs;
 702         priv->base.setPowerTable        = ar2425SetPowerTable;
 703         priv->base.getChannelMaxMinPower = ar2425GetChannelMaxMinPower;
 704         priv->base.getNfAdjust          = ar5212GetNfAdjust;
 705
 706         ahp->ah_pcdacTable = priv->pcdacTable;
 707         ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
 708         ahp->ah_rfHal = &priv->base;
 709
 710         return AH_TRUE;
 711 }
 712
 713 static HAL_BOOL
 714 ar2425Probe(struct ath_hal *ah)
 715 {
 716         return IS_2425(ah) || IS_2417(ah);
 717 }
 718 AH_RF(RF2425, ar2425Probe, ar2425RfAttach);