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_2413 31 #include "ar5212/ar5212.ini" 32 33 #define N(a) (sizeof(a)/sizeof(a[0])) 34 35 struct ar2413State { 36 RF_HAL_FUNCS base; /* public state, must be first */ 37 uint16_t pcdacTable[PWR_TABLE_SIZE_2413]; 38 39 uint32_t Bank1Data[N(ar5212Bank1_2413)]; 40 uint32_t Bank2Data[N(ar5212Bank2_2413)]; 41 uint32_t Bank3Data[N(ar5212Bank3_2413)]; 42 uint32_t Bank6Data[N(ar5212Bank6_2413)]; 43 uint32_t Bank7Data[N(ar5212Bank7_2413)]; 44 45 /* 46 * Private state for reduced stack usage. 47 */ 48 /* filled out Vpd table for all pdGains (chanL) */ 49 uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL] 50 [MAX_PWR_RANGE_IN_HALF_DB]; 51 /* filled out Vpd table for all pdGains (chanR) */ 52 uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL] 53 [MAX_PWR_RANGE_IN_HALF_DB]; 54 /* filled out Vpd table for all pdGains (interpolated) */ 55 uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL] 56 [MAX_PWR_RANGE_IN_HALF_DB]; 57 }; 58 #define AR2413(ah) ((struct ar2413State *) AH5212(ah)->ah_rfHal) 59 60 extern void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32, 61 uint32_t numBits, uint32_t firstBit, uint32_t column); 62 63 static void 64 ar2413WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex, 65 int writes) 66 { 67 HAL_INI_WRITE_ARRAY(ah, ar5212Modes_2413, modesIndex, writes); 68 HAL_INI_WRITE_ARRAY(ah, ar5212Common_2413, 1, writes); 69 HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_2413, freqIndex, writes); 70 } 71 72 /* 73 * Take the MHz channel value and set the Channel value 74 * 75 * ASSUMES: Writes enabled to analog bus 76 */ 77 static HAL_BOOL 78 ar2413SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan) 79 { 80 uint16_t freq = ath_hal_gethwchannel(ah, chan); 81 uint32_t channelSel = 0; 82 uint32_t bModeSynth = 0; 83 uint32_t aModeRefSel = 0; 84 uint32_t reg32 = 0; 85 86 OS_MARK(ah, AH_MARK_SETCHANNEL, freq); 87 88 if (freq < 4800) { 89 uint32_t txctl; 90 91 if (((freq - 2192) % 5) == 0) { 92 channelSel = ((freq - 672) * 2 - 3040)/10; 93 bModeSynth = 0; 94 } else if (((freq - 2224) % 5) == 0) { 95 channelSel = ((freq - 704) * 2 - 3040) / 10; 96 bModeSynth = 1; 97 } else { 98 HALDEBUG(ah, HAL_DEBUG_ANY, 99 "%s: invalid channel %u MHz\n", 100 __func__, freq); 101 return AH_FALSE; 102 } 103 104 channelSel = (channelSel << 2) & 0xff; 105 channelSel = ath_hal_reverseBits(channelSel, 8); 106 107 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL); 108 if (freq == 2484) { 109 /* Enable channel spreading for channel 14 */ 110 OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL, 111 txctl | AR_PHY_CCK_TX_CTRL_JAPAN); 112 } else { 113 OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL, 114 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN); 115 } 116 } else if (((freq % 5) == 2) && (freq <= 5435)) { 117 freq = freq - 2; /* Align to even 5MHz raster */ 118 channelSel = ath_hal_reverseBits( 119 (uint32_t)(((freq - 4800)*10)/25 + 1), 8); 120 aModeRefSel = ath_hal_reverseBits(0, 2); 121 } else if ((freq % 20) == 0 && freq >= 5120) { 122 channelSel = ath_hal_reverseBits( 123 ((freq - 4800) / 20 << 2), 8); 124 aModeRefSel = ath_hal_reverseBits(3, 2); 125 } else if ((freq % 10) == 0) { 126 channelSel = ath_hal_reverseBits( 127 ((freq - 4800) / 10 << 1), 8); 128 aModeRefSel = ath_hal_reverseBits(2, 2); 129 } else if ((freq % 5) == 0) { 130 channelSel = ath_hal_reverseBits( 131 (freq - 4800) / 5, 8); 132 aModeRefSel = ath_hal_reverseBits(1, 2); 133 } else { 134 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n", 135 __func__, freq); 136 return AH_FALSE; 137 } 138 139 reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) | 140 (1 << 12) | 0x1; 141 OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff); 142 143 reg32 >>= 8; 144 OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f); 145 146 AH_PRIVATE(ah)->ah_curchan = chan; 147 148 return AH_TRUE; 149 } 150 151 /* 152 * Reads EEPROM header info from device structure and programs 153 * all rf registers 154 * 155 * REQUIRES: Access to the analog rf device 156 */ 157 static HAL_BOOL 158 ar2413SetRfRegs(struct ath_hal *ah, 159 const struct ieee80211_channel *chan, 160 uint16_t modesIndex, uint16_t *rfXpdGain) 161 { 162 #define RF_BANK_SETUP(_priv, _ix, _col) do { \ 163 int i; \ 164 for (i = 0; i < N(ar5212Bank##_ix##_2413); i++) \ 165 (_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_2413[i][_col];\ 166 } while (0) 167 struct ath_hal_5212 *ahp = AH5212(ah); 168 const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 169 uint16_t ob2GHz = 0, db2GHz = 0; 170 struct ar2413State *priv = AR2413(ah); 171 int regWrites = 0; 172 173 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan %u/0x%x modesIndex %u\n", 174 __func__, chan->ic_freq, chan->ic_flags, modesIndex); 175 176 HALASSERT(priv); 177 178 /* Setup rf parameters */ 179 if (IEEE80211_IS_CHAN_B(chan)) { 180 ob2GHz = ee->ee_obFor24; 181 db2GHz = ee->ee_dbFor24; 182 } else { 183 ob2GHz = ee->ee_obFor24g; 184 db2GHz = ee->ee_dbFor24g; 185 } 186 187 /* Bank 1 Write */ 188 RF_BANK_SETUP(priv, 1, 1); 189 190 /* Bank 2 Write */ 191 RF_BANK_SETUP(priv, 2, modesIndex); 192 193 /* Bank 3 Write */ 194 RF_BANK_SETUP(priv, 3, modesIndex); 195 196 /* Bank 6 Write */ 197 RF_BANK_SETUP(priv, 6, modesIndex); 198 199 ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz, 3, 168, 0); 200 ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz, 3, 165, 0); 201 202 /* Bank 7 Setup */ 203 RF_BANK_SETUP(priv, 7, modesIndex); 204 205 /* Write Analog registers */ 206 HAL_INI_WRITE_BANK(ah, ar5212Bank1_2413, priv->Bank1Data, regWrites); 207 HAL_INI_WRITE_BANK(ah, ar5212Bank2_2413, priv->Bank2Data, regWrites); 208 HAL_INI_WRITE_BANK(ah, ar5212Bank3_2413, priv->Bank3Data, regWrites); 209 HAL_INI_WRITE_BANK(ah, ar5212Bank6_2413, priv->Bank6Data, regWrites); 210 HAL_INI_WRITE_BANK(ah, ar5212Bank7_2413, priv->Bank7Data, regWrites); 211 212 /* Now that we have reprogrammed rfgain value, clear the flag. */ 213 ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE; 214 215 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 ar2413GetRfBank(struct ath_hal *ah, int bank) 224 { 225 struct ar2413State *priv = AR2413(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 *vlo = 0; /* avoid gcc warnings */ 254 *vhi = 0; /* avoid gcc warnings */ 255 256 /* 257 * Check first and last elements for out-of-bounds conditions. 258 */ 259 if (target < lp[0]) { 260 *vlo = *vhi = 0; 261 return; 262 } 263 if (target >= ep[-1]) { 264 *vlo = *vhi = listSize - 1; 265 return; 266 } 267 268 /* look for value being near or between 2 values in list */ 269 for (tp = lp; tp < ep; tp++) { 270 /* 271 * If value is close to the current value of the list 272 * then target is not between values, it is one of the values 273 */ 274 if (*tp == target) { 275 *vlo = *vhi = tp - (const uint16_t *) lp; 276 return; 277 } 278 /* 279 * Look for value being between current value and next value 280 * if so return these 2 values 281 */ 282 if (target < tp[1]) { 283 *vlo = tp - (const uint16_t *) lp; 284 *vhi = *vlo + 1; 285 return; 286 } 287 } 288 } 289 290 /* 291 * Fill the Vpdlist for indices Pmax-Pmin 292 */ 293 static HAL_BOOL 294 ar2413FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t Pmax, 295 const int16_t *pwrList, const uint16_t *VpdList, 296 uint16_t numIntercepts, uint16_t retVpdList[][64]) 297 { 298 uint16_t ii, jj, kk; 299 int16_t currPwr = (int16_t)(2*Pmin); 300 /* since Pmin is pwr*2 and pwrList is 4*pwr */ 301 uint32_t idxL, idxR; 302 303 ii = 0; 304 jj = 0; 305 306 if (numIntercepts < 2) 307 return AH_FALSE; 308 309 while (ii <= (uint16_t)(Pmax - Pmin)) { 310 GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList, 311 numIntercepts, &(idxL), &(idxR)); 312 if (idxR < 1) 313 idxR = 1; /* extrapolate below */ 314 if (idxL == (uint32_t)(numIntercepts - 1)) 315 idxL = numIntercepts - 2; /* extrapolate above */ 316 if (pwrList[idxL] == pwrList[idxR]) 317 kk = VpdList[idxL]; 318 else 319 kk = (uint16_t) 320 (((currPwr - pwrList[idxL])*VpdList[idxR]+ 321 (pwrList[idxR] - currPwr)*VpdList[idxL])/ 322 (pwrList[idxR] - pwrList[idxL])); 323 retVpdList[pdGainIdx][ii] = kk; 324 ii++; 325 currPwr += 2; /* half dB steps */ 326 } 327 328 return AH_TRUE; 329 } 330 331 /* 332 * Returns interpolated or the scaled up interpolated value 333 */ 334 static int16_t 335 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight, 336 int16_t targetLeft, int16_t targetRight) 337 { 338 int16_t rv; 339 340 if (srcRight != srcLeft) { 341 rv = ((target - srcLeft)*targetRight + 342 (srcRight - target)*targetLeft) / (srcRight - srcLeft); 343 } else { 344 rv = targetLeft; 345 } 346 return rv; 347 } 348 349 /* 350 * Uses the data points read from EEPROM to reconstruct the pdadc power table 351 * Called by ar2413SetPowerTable() 352 */ 353 static int 354 ar2413getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel, 355 const RAW_DATA_STRUCT_2413 *pRawDataset, 356 uint16_t pdGainOverlap_t2, 357 int16_t *pMinCalPower, uint16_t pPdGainBoundaries[], 358 uint16_t pPdGainValues[], uint16_t pPDADCValues[]) 359 { 360 struct ar2413State *priv = AR2413(ah); 361 #define VpdTable_L priv->vpdTable_L 362 #define VpdTable_R priv->vpdTable_R 363 #define VpdTable_I priv->vpdTable_I 364 uint32_t ii, jj, kk; 365 int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */ 366 uint32_t idxL, idxR; 367 uint32_t numPdGainsUsed = 0; 368 /* 369 * If desired to support -ve power levels in future, just 370 * change pwr_I_0 to signed 5-bits. 371 */ 372 int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL]; 373 /* to accommodate -ve power levels later on. */ 374 int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL]; 375 /* to accommodate -ve power levels later on */ 376 uint16_t numVpd = 0; 377 uint16_t Vpd_step; 378 int16_t tmpVal ; 379 uint32_t sizeCurrVpdTable, maxIndex, tgtIndex; 380 381 /* Get upper lower index */ 382 GetLowerUpperIndex(channel, pRawDataset->pChannels, 383 pRawDataset->numChannels, &(idxL), &(idxR)); 384 385 for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) { 386 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1; 387 /* work backwards 'cause highest pdGain for lowest power */ 388 numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd; 389 if (numVpd > 0) { 390 pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain; 391 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]; 392 if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) { 393 Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]; 394 } 395 Pmin_t2[numPdGainsUsed] = (int16_t) 396 (Pmin_t2[numPdGainsUsed] / 2); 397 Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1]; 398 if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1]) 399 Pmax_t2[numPdGainsUsed] = 400 pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1]; 401 Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2); 402 ar2413FillVpdTable( 403 numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed], 404 &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]), 405 &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L 406 ); 407 ar2413FillVpdTable( 408 numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed], 409 &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]), 410 &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R 411 ); 412 for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) { 413 VpdTable_I[numPdGainsUsed][kk] = 414 interpolate_signed( 415 channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR], 416 (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]); 417 } 418 /* fill VpdTable_I for this pdGain */ 419 numPdGainsUsed++; 420 } 421 /* if this pdGain is used */ 422 } 423 424 *pMinCalPower = Pmin_t2[0]; 425 kk = 0; /* index for the final table */ 426 for (ii = 0; ii < numPdGainsUsed; ii++) { 427 if (ii == (numPdGainsUsed - 1)) 428 pPdGainBoundaries[ii] = Pmax_t2[ii] + 429 PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB; 430 else 431 pPdGainBoundaries[ii] = (uint16_t) 432 ((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 ); 433 if (pPdGainBoundaries[ii] > 63) { 434 HALDEBUG(ah, HAL_DEBUG_ANY, 435 "%s: clamp pPdGainBoundaries[%d] %d\n", 436 __func__, ii, pPdGainBoundaries[ii]);/*XXX*/ 437 pPdGainBoundaries[ii] = 63; 438 } 439 440 /* Find starting index for this pdGain */ 441 if (ii == 0) 442 ss = 0; /* for the first pdGain, start from index 0 */ 443 else 444 ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) - 445 pdGainOverlap_t2; 446 Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]); 447 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step); 448 /* 449 *-ve ss indicates need to extrapolate data below for this pdGain 450 */ 451 while (ss < 0) { 452 tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step); 453 pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal); 454 ss++; 455 } 456 457 sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii]; 458 tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii]; 459 maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable; 460 461 while (ss < (int16_t)maxIndex) 462 pPDADCValues[kk++] = VpdTable_I[ii][ss++]; 463 464 Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] - 465 VpdTable_I[ii][sizeCurrVpdTable-2]); 466 Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step); 467 /* 468 * for last gain, pdGainBoundary == Pmax_t2, so will 469 * have to extrapolate 470 */ 471 if (tgtIndex > maxIndex) { /* need to extrapolate above */ 472 while(ss < (int16_t)tgtIndex) { 473 tmpVal = (uint16_t) 474 (VpdTable_I[ii][sizeCurrVpdTable-1] + 475 (ss-maxIndex)*Vpd_step); 476 pPDADCValues[kk++] = (tmpVal > 127) ? 477 127 : tmpVal; 478 ss++; 479 } 480 } /* extrapolated above */ 481 } /* for all pdGainUsed */ 482 483 while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) { 484 pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1]; 485 ii++; 486 } 487 while (kk < 128) { 488 pPDADCValues[kk] = pPDADCValues[kk-1]; 489 kk++; 490 } 491 492 return numPdGainsUsed; 493 #undef VpdTable_L 494 #undef VpdTable_R 495 #undef VpdTable_I 496 } 497 498 static HAL_BOOL 499 ar2413SetPowerTable(struct ath_hal *ah, 500 int16_t *minPower, int16_t *maxPower, 501 const struct ieee80211_channel *chan, 502 uint16_t *rfXpdGain) 503 { 504 uint16_t freq = ath_hal_gethwchannel(ah, chan); 505 struct ath_hal_5212 *ahp = AH5212(ah); 506 const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 507 const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL; 508 uint16_t pdGainOverlap_t2; 509 int16_t minCalPower2413_t2; 510 uint16_t *pdadcValues = ahp->ah_pcdacTable; 511 uint16_t gainBoundaries[4]; 512 uint32_t reg32, regoffset; 513 int i, numPdGainsUsed; 514 #ifndef AH_USE_INIPDGAIN 515 uint32_t tpcrg1; 516 #endif 517 518 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n", 519 __func__, freq, chan->ic_flags); 520 521 if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan)) 522 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G]; 523 else if (IEEE80211_IS_CHAN_B(chan)) 524 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B]; 525 else { 526 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: illegal mode\n", __func__); 527 return AH_FALSE; 528 } 529 530 pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5), 531 AR_PHY_TPCRG5_PD_GAIN_OVERLAP); 532 533 numPdGainsUsed = ar2413getGainBoundariesAndPdadcsForPowers(ah, 534 freq, pRawDataset, pdGainOverlap_t2, 535 &minCalPower2413_t2,gainBoundaries, rfXpdGain, pdadcValues); 536 HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3); 537 538 #ifdef AH_USE_INIPDGAIN 539 /* 540 * Use pd_gains curve from eeprom; Atheros always uses 541 * the default curve from the ini file but some vendors 542 * (e.g. Zcomax) want to override this curve and not 543 * honoring their settings results in tx power 5dBm low. 544 */ 545 OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN, 546 (pRawDataset->pDataPerChannel[0].numPdGains - 1)); 547 #else 548 tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1); 549 tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN) 550 | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN); 551 switch (numPdGainsUsed) { 552 case 3: 553 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3; 554 tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3); 555 /* fall thru... */ 556 case 2: 557 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2; 558 tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2); 559 /* fall thru... */ 560 case 1: 561 tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1; 562 tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1); 563 break; 564 } 565 #ifdef AH_DEBUG 566 if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1)) 567 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default " 568 "pd_gains (default 0x%x, calculated 0x%x)\n", 569 __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1); 570 #endif 571 OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1); 572 #endif 573 574 /* 575 * Note the pdadc table may not start at 0 dBm power, could be 576 * negative or greater than 0. Need to offset the power 577 * values by the amount of minPower for griffin 578 */ 579 if (minCalPower2413_t2 != 0) 580 ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower2413_t2); 581 else 582 ahp->ah_txPowerIndexOffset = 0; 583 584 /* Finally, write the power values into the baseband power table */ 585 regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */ 586 for (i = 0; i < 32; i++) { 587 reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0) | 588 ((pdadcValues[4*i + 1] & 0xFF) << 8) | 589 ((pdadcValues[4*i + 2] & 0xFF) << 16) | 590 ((pdadcValues[4*i + 3] & 0xFF) << 24) ; 591 OS_REG_WRITE(ah, regoffset, reg32); 592 regoffset += 4; 593 } 594 595 OS_REG_WRITE(ah, AR_PHY_TPCRG5, 596 SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) | 597 SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) | 598 SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) | 599 SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) | 600 SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4)); 601 602 return AH_TRUE; 603 } 604 605 static int16_t 606 ar2413GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data) 607 { 608 uint32_t ii,jj; 609 uint16_t Pmin=0,numVpd; 610 611 for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) { 612 jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1; 613 /* work backwards 'cause highest pdGain for lowest power */ 614 numVpd = data->pDataPerPDGain[jj].numVpd; 615 if (numVpd > 0) { 616 Pmin = data->pDataPerPDGain[jj].pwr_t4[0]; 617 return(Pmin); 618 } 619 } 620 return(Pmin); 621 } 622 623 static int16_t 624 ar2413GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data) 625 { 626 uint32_t ii; 627 uint16_t Pmax=0,numVpd; 628 629 for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) { 630 /* work forwards cuase lowest pdGain for highest power */ 631 numVpd = data->pDataPerPDGain[ii].numVpd; 632 if (numVpd > 0) { 633 Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1]; 634 return(Pmax); 635 } 636 } 637 return(Pmax); 638 } 639 640 static HAL_BOOL 641 ar2413GetChannelMaxMinPower(struct ath_hal *ah, 642 const struct ieee80211_channel *chan, 643 int16_t *maxPow, int16_t *minPow) 644 { 645 uint16_t freq = chan->ic_freq; /* NB: never mapped */ 646 const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 647 const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL; 648 const RAW_DATA_PER_CHANNEL_2413 *data = AH_NULL; 649 uint16_t numChannels; 650 int totalD,totalF, totalMin,last, i; 651 652 *maxPow = 0; 653 654 if (IEEE80211_IS_CHAN_G(chan) || IEEE80211_IS_CHAN_108G(chan)) 655 pRawDataset = &ee->ee_rawDataset2413[headerInfo11G]; 656 else if (IEEE80211_IS_CHAN_B(chan)) 657 pRawDataset = &ee->ee_rawDataset2413[headerInfo11B]; 658 else 659 return(AH_FALSE); 660 661 numChannels = pRawDataset->numChannels; 662 data = pRawDataset->pDataPerChannel; 663 664 /* Make sure the channel is in the range of the TP values 665 * (freq piers) 666 */ 667 if (numChannels < 1) 668 return(AH_FALSE); 669 670 if ((freq < data[0].channelValue) || 671 (freq > data[numChannels-1].channelValue)) { 672 if (freq < data[0].channelValue) { 673 *maxPow = ar2413GetMaxPower(ah, &data[0]); 674 *minPow = ar2413GetMinPower(ah, &data[0]); 675 return(AH_TRUE); 676 } else { 677 *maxPow = ar2413GetMaxPower(ah, &data[numChannels - 1]); 678 *minPow = ar2413GetMinPower(ah, &data[numChannels - 1]); 679 return(AH_TRUE); 680 } 681 } 682 683 /* Linearly interpolate the power value now */ 684 for (last=0,i=0; (i<numChannels) && (freq > data[i].channelValue); 685 last = i++); 686 totalD = data[i].channelValue - data[last].channelValue; 687 if (totalD > 0) { 688 totalF = ar2413GetMaxPower(ah, &data[i]) - ar2413GetMaxPower(ah, &data[last]); 689 *maxPow = (int8_t) ((totalF*(freq-data[last].channelValue) + 690 ar2413GetMaxPower(ah, &data[last])*totalD)/totalD); 691 totalMin = ar2413GetMinPower(ah, &data[i]) - ar2413GetMinPower(ah, &data[last]); 692 *minPow = (int8_t) ((totalMin*(freq-data[last].channelValue) + 693 ar2413GetMinPower(ah, &data[last])*totalD)/totalD); 694 return(AH_TRUE); 695 } else { 696 if (freq == data[i].channelValue) { 697 *maxPow = ar2413GetMaxPower(ah, &data[i]); 698 *minPow = ar2413GetMinPower(ah, &data[i]); 699 return(AH_TRUE); 700 } else 701 return(AH_FALSE); 702 } 703 } 704 705 /* 706 * Free memory for analog bank scratch buffers 707 */ 708 static void 709 ar2413RfDetach(struct ath_hal *ah) 710 { 711 struct ath_hal_5212 *ahp = AH5212(ah); 712 713 HALASSERT(ahp->ah_rfHal != AH_NULL); 714 ath_hal_free(ahp->ah_rfHal); 715 ahp->ah_rfHal = AH_NULL; 716 } 717 718 /* 719 * Allocate memory for analog bank scratch buffers 720 * Scratch Buffer will be reinitialized every reset so no need to zero now 721 */ 722 static HAL_BOOL 723 ar2413RfAttach(struct ath_hal *ah, HAL_STATUS *status) 724 { 725 struct ath_hal_5212 *ahp = AH5212(ah); 726 struct ar2413State *priv; 727 728 HALASSERT(ah->ah_magic == AR5212_MAGIC); 729 730 HALASSERT(ahp->ah_rfHal == AH_NULL); 731 priv = ath_hal_malloc(sizeof(struct ar2413State)); 732 if (priv == AH_NULL) { 733 HALDEBUG(ah, HAL_DEBUG_ANY, 734 "%s: cannot allocate private state\n", __func__); 735 *status = HAL_ENOMEM; /* XXX */ 736 return AH_FALSE; 737 } 738 priv->base.rfDetach = ar2413RfDetach; 739 priv->base.writeRegs = ar2413WriteRegs; 740 priv->base.getRfBank = ar2413GetRfBank; 741 priv->base.setChannel = ar2413SetChannel; 742 priv->base.setRfRegs = ar2413SetRfRegs; 743 priv->base.setPowerTable = ar2413SetPowerTable; 744 priv->base.getChannelMaxMinPower = ar2413GetChannelMaxMinPower; 745 priv->base.getNfAdjust = ar5212GetNfAdjust; 746 747 ahp->ah_pcdacTable = priv->pcdacTable; 748 ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable); 749 ahp->ah_rfHal = &priv->base; 750 751 return AH_TRUE; 752 } 753 754 static HAL_BOOL 755 ar2413Probe(struct ath_hal *ah) 756 { 757 return IS_2413(ah); 758 } 759 AH_RF(RF2413, ar2413Probe, ar2413RfAttach); 760