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