1 /* 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2006 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 * $Id: ar5211_reset.c,v 1.4 2011/03/07 11:25:42 cegger Exp $ 18 */ 19 #include "opt_ah.h" 20 21 /* 22 * Chips specific device attachment and device info collection 23 * Connects Init Reg Vectors, EEPROM Data, and device Functions. 24 */ 25 #include "ah.h" 26 #include "ah_internal.h" 27 #include "ah_devid.h" 28 29 #include "ar5211/ar5211.h" 30 #include "ar5211/ar5211reg.h" 31 #include "ar5211/ar5211phy.h" 32 33 #include "ah_eeprom_v3.h" 34 35 /* Add static register initialization vectors */ 36 #include "ar5211/boss.ini" 37 38 /* 39 * Structure to hold 11b tuning information for Beanie/Sombrero 40 * 16 MHz mode, divider ratio = 198 = NP+S. N=16, S=4 or 6, P=12 41 */ 42 typedef struct { 43 uint32_t refClkSel; /* reference clock, 1 for 16 MHz */ 44 uint32_t channelSelect; /* P[7:4]S[3:0] bits */ 45 uint16_t channel5111; /* 11a channel for 5111 */ 46 } CHAN_INFO_2GHZ; 47 48 #define CI_2GHZ_INDEX_CORRECTION 19 49 static const CHAN_INFO_2GHZ chan2GHzData[] = { 50 { 1, 0x46, 96 }, /* 2312 -19 */ 51 { 1, 0x46, 97 }, /* 2317 -18 */ 52 { 1, 0x46, 98 }, /* 2322 -17 */ 53 { 1, 0x46, 99 }, /* 2327 -16 */ 54 { 1, 0x46, 100 }, /* 2332 -15 */ 55 { 1, 0x46, 101 }, /* 2337 -14 */ 56 { 1, 0x46, 102 }, /* 2342 -13 */ 57 { 1, 0x46, 103 }, /* 2347 -12 */ 58 { 1, 0x46, 104 }, /* 2352 -11 */ 59 { 1, 0x46, 105 }, /* 2357 -10 */ 60 { 1, 0x46, 106 }, /* 2362 -9 */ 61 { 1, 0x46, 107 }, /* 2367 -8 */ 62 { 1, 0x46, 108 }, /* 2372 -7 */ 63 /* index -6 to 0 are pad to make this a nolookup table */ 64 { 1, 0x46, 116 }, /* -6 */ 65 { 1, 0x46, 116 }, /* -5 */ 66 { 1, 0x46, 116 }, /* -4 */ 67 { 1, 0x46, 116 }, /* -3 */ 68 { 1, 0x46, 116 }, /* -2 */ 69 { 1, 0x46, 116 }, /* -1 */ 70 { 1, 0x46, 116 }, /* 0 */ 71 { 1, 0x46, 116 }, /* 2412 1 */ 72 { 1, 0x46, 117 }, /* 2417 2 */ 73 { 1, 0x46, 118 }, /* 2422 3 */ 74 { 1, 0x46, 119 }, /* 2427 4 */ 75 { 1, 0x46, 120 }, /* 2432 5 */ 76 { 1, 0x46, 121 }, /* 2437 6 */ 77 { 1, 0x46, 122 }, /* 2442 7 */ 78 { 1, 0x46, 123 }, /* 2447 8 */ 79 { 1, 0x46, 124 }, /* 2452 9 */ 80 { 1, 0x46, 125 }, /* 2457 10 */ 81 { 1, 0x46, 126 }, /* 2462 11 */ 82 { 1, 0x46, 127 }, /* 2467 12 */ 83 { 1, 0x46, 128 }, /* 2472 13 */ 84 { 1, 0x44, 124 }, /* 2484 14 */ 85 { 1, 0x46, 136 }, /* 2512 15 */ 86 { 1, 0x46, 140 }, /* 2532 16 */ 87 { 1, 0x46, 144 }, /* 2552 17 */ 88 { 1, 0x46, 148 }, /* 2572 18 */ 89 { 1, 0x46, 152 }, /* 2592 19 */ 90 { 1, 0x46, 156 }, /* 2612 20 */ 91 { 1, 0x46, 160 }, /* 2632 21 */ 92 { 1, 0x46, 164 }, /* 2652 22 */ 93 { 1, 0x46, 168 }, /* 2672 23 */ 94 { 1, 0x46, 172 }, /* 2692 24 */ 95 { 1, 0x46, 176 }, /* 2712 25 */ 96 { 1, 0x46, 180 } /* 2732 26 */ 97 }; 98 99 /* Power timeouts in usec to wait for chip to wake-up. */ 100 #define POWER_UP_TIME 2000 101 102 #define DELAY_PLL_SETTLE 300 /* 300 us */ 103 #define DELAY_BASE_ACTIVATE 100 /* 100 us */ 104 105 #define NUM_RATES 8 106 107 static HAL_BOOL ar5211SetResetReg(struct ath_hal *ah, uint32_t resetMask); 108 static HAL_BOOL ar5211SetChannel(struct ath_hal *, HAL_CHANNEL_INTERNAL *); 109 static int16_t ar5211RunNoiseFloor(struct ath_hal *, 110 uint8_t runTime, int16_t startingNF); 111 static HAL_BOOL ar5211IsNfGood(struct ath_hal *, HAL_CHANNEL_INTERNAL *chan); 112 static HAL_BOOL ar5211SetRf6and7(struct ath_hal *, HAL_CHANNEL *chan); 113 static HAL_BOOL ar5211SetBoardValues(struct ath_hal *, HAL_CHANNEL *chan); 114 static void ar5211SetPowerTable(struct ath_hal *, 115 PCDACS_EEPROM *pSrcStruct, uint16_t channel); 116 static void ar5211SetRateTable(struct ath_hal *, 117 RD_EDGES_POWER *pRdEdgesPower, TRGT_POWER_INFO *pPowerInfo, 118 uint16_t numChannels, HAL_CHANNEL *chan); 119 static uint16_t ar5211GetScaledPower(uint16_t channel, uint16_t pcdacValue, 120 const PCDACS_EEPROM *pSrcStruct); 121 static HAL_BOOL ar5211FindValueInList(uint16_t channel, uint16_t pcdacValue, 122 const PCDACS_EEPROM *pSrcStruct, uint16_t *powerValue); 123 static uint16_t ar5211GetInterpolatedValue(uint16_t target, 124 uint16_t srcLeft, uint16_t srcRight, 125 uint16_t targetLeft, uint16_t targetRight, HAL_BOOL scaleUp); 126 static void ar5211GetLowerUpperValues(uint16_t value, 127 const uint16_t *pList, uint16_t listSize, 128 uint16_t *pLowerValue, uint16_t *pUpperValue); 129 static void ar5211GetLowerUpperPcdacs(uint16_t pcdac, 130 uint16_t channel, const PCDACS_EEPROM *pSrcStruct, 131 uint16_t *pLowerPcdac, uint16_t *pUpperPcdac); 132 133 static void ar5211SetRfgain(struct ath_hal *, const GAIN_VALUES *);; 134 static void ar5211RequestRfgain(struct ath_hal *); 135 static HAL_BOOL ar5211InvalidGainReadback(struct ath_hal *, GAIN_VALUES *); 136 static HAL_BOOL ar5211IsGainAdjustNeeded(struct ath_hal *, const GAIN_VALUES *); 137 static int32_t ar5211AdjustGain(struct ath_hal *, GAIN_VALUES *); 138 static void ar5211SetOperatingMode(struct ath_hal *, int opmode); 139 140 /* 141 * Places the device in and out of reset and then places sane 142 * values in the registers based on EEPROM config, initialization 143 * vectors (as determined by the mode), and station configuration 144 * 145 * bChannelChange is used to preserve DMA/PCU registers across 146 * a HW Reset during channel change. 147 */ 148 HAL_BOOL 149 ar5211Reset(struct ath_hal *ah, HAL_OPMODE opmode, 150 HAL_CHANNEL *chan, HAL_BOOL bChannelChange, HAL_STATUS *status) 151 { 152 uint32_t softLedCfg, softLedState; 153 #define N(a) (sizeof (a) /sizeof (a[0])) 154 #define FAIL(_code) do { ecode = _code; goto bad; } while (0) 155 struct ath_hal_5211 *ahp = AH5211(ah); 156 HAL_CHANNEL_INTERNAL *ichan; 157 uint32_t i, ledstate; 158 HAL_STATUS ecode; 159 int q; 160 161 uint32_t data, synthDelay; 162 uint32_t macStaId1; 163 uint16_t modesIndex = 0, freqIndex = 0; 164 uint32_t saveFrameSeqCount[AR_NUM_DCU]; 165 uint32_t saveTsfLow = 0, saveTsfHigh = 0; 166 uint32_t saveDefAntenna; 167 168 HALDEBUG(ah, HAL_DEBUG_RESET, 169 "%s: opmode %u channel %u/0x%x %s channel\n", 170 __func__, opmode, chan->channel, chan->channelFlags, 171 bChannelChange ? "change" : "same"); 172 173 OS_MARK(ah, AH_MARK_RESET, bChannelChange); 174 #define IS(_c,_f) (((_c)->channelFlags & _f) || 0) 175 if ((IS(chan, CHANNEL_2GHZ) ^ IS(chan,CHANNEL_5GHZ)) == 0) { 176 HALDEBUG(ah, HAL_DEBUG_ANY, 177 "%s: invalid channel %u/0x%x; not marked as 2GHz or 5GHz\n", 178 __func__, chan->channel, chan->channelFlags); 179 FAIL(HAL_EINVAL); 180 } 181 if ((IS(chan, CHANNEL_OFDM) ^ IS(chan, CHANNEL_CCK)) == 0) { 182 HALDEBUG(ah, HAL_DEBUG_ANY, 183 "%s: invalid channel %u/0x%x; not marked as OFDM or CCK\n", 184 __func__, chan->channel, chan->channelFlags); 185 FAIL(HAL_EINVAL); 186 } 187 #undef IS 188 /* 189 * Map public channel to private. 190 */ 191 ichan = ath_hal_checkchannel(ah, chan); 192 if (ichan == AH_NULL) { 193 HALDEBUG(ah, HAL_DEBUG_ANY, 194 "%s: invalid channel %u/0x%x; no mapping\n", 195 __func__, chan->channel, chan->channelFlags); 196 FAIL(HAL_EINVAL); 197 } 198 switch (opmode) { 199 case HAL_M_STA: 200 case HAL_M_IBSS: 201 case HAL_M_HOSTAP: 202 case HAL_M_MONITOR: 203 break; 204 default: 205 HALDEBUG(ah, HAL_DEBUG_ANY, 206 "%s: invalid operating mode %u\n", __func__, opmode); 207 FAIL(HAL_EINVAL); 208 break; 209 } 210 HALASSERT(AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3); 211 212 /* Preserve certain DMA hardware registers on a channel change */ 213 if (bChannelChange) { 214 /* 215 * Need to save/restore the TSF because of an issue 216 * that accelerates the TSF during a chip reset. 217 * 218 * We could use system timer routines to more 219 * accurately restore the TSF, but 220 * 1. Timer routines on certain platforms are 221 * not accurate enough (e.g. 1 ms resolution). 222 * 2. It would still not be accurate. 223 * 224 * The most important aspect of this workaround, 225 * is that, after reset, the TSF is behind 226 * other STAs TSFs. This will allow the STA to 227 * properly resynchronize its TSF in adhoc mode. 228 */ 229 saveTsfLow = OS_REG_READ(ah, AR_TSF_L32); 230 saveTsfHigh = OS_REG_READ(ah, AR_TSF_U32); 231 232 /* Read frame sequence count */ 233 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 234 saveFrameSeqCount[0] = OS_REG_READ(ah, AR_D0_SEQNUM); 235 } else { 236 for (i = 0; i < AR_NUM_DCU; i++) 237 saveFrameSeqCount[i] = OS_REG_READ(ah, AR_DSEQNUM(i)); 238 } 239 if (!(ichan->privFlags & CHANNEL_DFS)) 240 ichan->privFlags &= ~CHANNEL_INTERFERENCE; 241 chan->channelFlags = ichan->channelFlags; 242 chan->privFlags = ichan->privFlags; 243 } 244 245 /* 246 * Preserve the antenna on a channel change 247 */ 248 saveDefAntenna = OS_REG_READ(ah, AR_DEF_ANTENNA); 249 if (saveDefAntenna == 0) 250 saveDefAntenna = 1; 251 252 /* Save hardware flag before chip reset clears the register */ 253 macStaId1 = OS_REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B; 254 255 /* Save led state from pci config register */ 256 ledstate = OS_REG_READ(ah, AR_PCICFG) & 257 (AR_PCICFG_LEDCTL | AR_PCICFG_LEDMODE | AR_PCICFG_LEDBLINK | 258 AR_PCICFG_LEDSLOW); 259 softLedCfg = OS_REG_READ(ah, AR_GPIOCR); 260 softLedState = OS_REG_READ(ah, AR_GPIODO); 261 262 if (!ar5211ChipReset(ah, chan->channelFlags)) { 263 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__); 264 FAIL(HAL_EIO); 265 } 266 267 /* Setup the indices for the next set of register array writes */ 268 switch (chan->channelFlags & CHANNEL_ALL) { 269 case CHANNEL_A: 270 modesIndex = 1; 271 freqIndex = 1; 272 break; 273 case CHANNEL_T: 274 modesIndex = 2; 275 freqIndex = 1; 276 break; 277 case CHANNEL_B: 278 modesIndex = 3; 279 freqIndex = 2; 280 break; 281 case CHANNEL_PUREG: 282 modesIndex = 4; 283 freqIndex = 2; 284 break; 285 default: 286 /* Ah, a new wireless mode */ 287 HALASSERT(0); 288 break; 289 } 290 291 /* Set correct Baseband to analog shift setting to access analog chips. */ 292 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 293 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000007); 294 } else { 295 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000047); 296 } 297 298 /* Write parameters specific to AR5211 */ 299 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 300 if (IS_CHAN_2GHZ(chan) && 301 AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3_1) { 302 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 303 uint32_t ob2GHz, db2GHz; 304 305 if (IS_CHAN_CCK(chan)) { 306 ob2GHz = ee->ee_ob2GHz[0]; 307 db2GHz = ee->ee_db2GHz[0]; 308 } else { 309 ob2GHz = ee->ee_ob2GHz[1]; 310 db2GHz = ee->ee_db2GHz[1]; 311 } 312 ob2GHz = ath_hal_reverseBits(ob2GHz, 3); 313 db2GHz = ath_hal_reverseBits(db2GHz, 3); 314 ar5211Mode2_4[25][freqIndex] = 315 (ar5211Mode2_4[25][freqIndex] & ~0xC0) | 316 ((ob2GHz << 6) & 0xC0); 317 ar5211Mode2_4[26][freqIndex] = 318 (ar5211Mode2_4[26][freqIndex] & ~0x0F) | 319 (((ob2GHz >> 2) & 0x1) | 320 ((db2GHz << 1) & 0x0E)); 321 } 322 for (i = 0; i < N(ar5211Mode2_4); i++) 323 OS_REG_WRITE(ah, ar5211Mode2_4[i][0], 324 ar5211Mode2_4[i][freqIndex]); 325 } 326 327 /* Write the analog registers 6 and 7 before other config */ 328 ar5211SetRf6and7(ah, chan); 329 330 /* Write registers that vary across all modes */ 331 for (i = 0; i < N(ar5211Modes); i++) 332 OS_REG_WRITE(ah, ar5211Modes[i][0], ar5211Modes[i][modesIndex]); 333 334 /* Write RFGain Parameters that differ between 2.4 and 5 GHz */ 335 for (i = 0; i < N(ar5211BB_RfGain); i++) 336 OS_REG_WRITE(ah, ar5211BB_RfGain[i][0], ar5211BB_RfGain[i][freqIndex]); 337 338 /* Write Common Array Parameters */ 339 for (i = 0; i < N(ar5211Common); i++) { 340 uint32_t reg = ar5211Common[i][0]; 341 /* On channel change, don't reset the PCU registers */ 342 if (!(bChannelChange && (0x8000 <= reg && reg < 0x9000))) 343 OS_REG_WRITE(ah, reg, ar5211Common[i][1]); 344 } 345 346 /* Fix pre-AR5211 register values, this includes AR5311s. */ 347 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) { 348 /* 349 * The TX and RX latency values have changed locations 350 * within the USEC register in AR5211. Since they're 351 * set via the .ini, for both AR5211 and AR5311, they 352 * are written properly here for AR5311. 353 */ 354 data = OS_REG_READ(ah, AR_USEC); 355 /* Must be 0 for proper write in AR5311 */ 356 HALASSERT((data & 0x00700000) == 0); 357 OS_REG_WRITE(ah, AR_USEC, 358 (data & (AR_USEC_M | AR_USEC_32_M | AR5311_USEC_TX_LAT_M)) | 359 ((29 << AR5311_USEC_RX_LAT_S) & AR5311_USEC_RX_LAT_M)); 360 /* The following registers exist only on AR5311. */ 361 OS_REG_WRITE(ah, AR5311_QDCLKGATE, 0); 362 363 /* Set proper ADC & DAC delays for AR5311. */ 364 OS_REG_WRITE(ah, 0x00009878, 0x00000008); 365 366 /* Enable the PCU FIFO corruption ECO on AR5311. */ 367 OS_REG_WRITE(ah, AR_DIAG_SW, 368 OS_REG_READ(ah, AR_DIAG_SW) | AR5311_DIAG_SW_USE_ECO); 369 } 370 371 /* Restore certain DMA hardware registers on a channel change */ 372 if (bChannelChange) { 373 /* Restore TSF */ 374 OS_REG_WRITE(ah, AR_TSF_L32, saveTsfLow); 375 OS_REG_WRITE(ah, AR_TSF_U32, saveTsfHigh); 376 377 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 378 OS_REG_WRITE(ah, AR_D0_SEQNUM, saveFrameSeqCount[0]); 379 } else { 380 for (i = 0; i < AR_NUM_DCU; i++) 381 OS_REG_WRITE(ah, AR_DSEQNUM(i), saveFrameSeqCount[i]); 382 } 383 } 384 385 OS_REG_WRITE(ah, AR_STA_ID0, LE_READ_4(ahp->ah_macaddr)); 386 OS_REG_WRITE(ah, AR_STA_ID1, LE_READ_2(ahp->ah_macaddr + 4) 387 | macStaId1 388 ); 389 ar5211SetOperatingMode(ah, opmode); 390 391 /* Restore previous led state */ 392 OS_REG_WRITE(ah, AR_PCICFG, OS_REG_READ(ah, AR_PCICFG) | ledstate); 393 OS_REG_WRITE(ah, AR_GPIOCR, softLedCfg); 394 OS_REG_WRITE(ah, AR_GPIODO, softLedState); 395 396 /* Restore previous antenna */ 397 OS_REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna); 398 399 OS_REG_WRITE(ah, AR_BSS_ID0, LE_READ_4(ahp->ah_bssid)); 400 OS_REG_WRITE(ah, AR_BSS_ID1, LE_READ_2(ahp->ah_bssid + 4)); 401 402 /* Restore bmiss rssi & count thresholds */ 403 OS_REG_WRITE(ah, AR_RSSI_THR, ahp->ah_rssiThr); 404 405 OS_REG_WRITE(ah, AR_ISR, ~0); /* cleared on write */ 406 407 /* 408 * for pre-Production Oahu only. 409 * Disable clock gating in all DMA blocks. Helps when using 410 * 11B and AES but results in higher power consumption. 411 */ 412 if (AH_PRIVATE(ah)->ah_macVersion == AR_SREV_VERSION_OAHU && 413 AH_PRIVATE(ah)->ah_macRev < AR_SREV_OAHU_PROD) { 414 OS_REG_WRITE(ah, AR_CFG, 415 OS_REG_READ(ah, AR_CFG) | AR_CFG_CLK_GATE_DIS); 416 } 417 418 /* Setup the transmit power values. */ 419 if (!ar5211SetTransmitPower(ah, chan)) { 420 HALDEBUG(ah, HAL_DEBUG_ANY, 421 "%s: error init'ing transmit power\n", __func__); 422 FAIL(HAL_EIO); 423 } 424 425 /* 426 * Configurable OFDM spoofing for 11n compatibility; used 427 * only when operating in station mode. 428 */ 429 if (opmode != HAL_M_HOSTAP && 430 (AH_PRIVATE(ah)->ah_11nCompat & HAL_DIAG_11N_SERVICES) != 0) { 431 /* NB: override the .ini setting */ 432 OS_REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, 433 AR_PHY_FRAME_CTL_ERR_SERV, 434 MS(AH_PRIVATE(ah)->ah_11nCompat, HAL_DIAG_11N_SERVICES)&1); 435 } 436 437 /* Setup board specific options for EEPROM version 3 */ 438 ar5211SetBoardValues(ah, chan); 439 440 if (!ar5211SetChannel(ah, ichan)) { 441 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unable to set channel\n", 442 __func__); 443 FAIL(HAL_EIO); 444 } 445 446 /* Activate the PHY */ 447 if (AH_PRIVATE(ah)->ah_devid == AR5211_FPGA11B && IS_CHAN_2GHZ(chan)) 448 OS_REG_WRITE(ah, 0xd808, 0x502); /* required for FPGA */ 449 OS_REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); 450 451 /* 452 * Wait for the frequency synth to settle (synth goes on 453 * via AR_PHY_ACTIVE_EN). Read the phy active delay register. 454 * Value is in 100ns increments. 455 */ 456 data = OS_REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_M; 457 if (IS_CHAN_CCK(chan)) { 458 synthDelay = (4 * data) / 22; 459 } else { 460 synthDelay = data / 10; 461 } 462 /* 463 * There is an issue if the AP starts the calibration before 464 * the baseband timeout completes. This could result in the 465 * rxclear false triggering. Add an extra delay to ensure this 466 * this does not happen. 467 */ 468 OS_DELAY(synthDelay + DELAY_BASE_ACTIVATE); 469 470 /* Calibrate the AGC and wait for completion. */ 471 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 472 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_CAL); 473 (void) ath_hal_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL, 0); 474 475 /* Perform noise floor and set status */ 476 if (!ar5211CalNoiseFloor(ah, ichan)) { 477 if (!IS_CHAN_CCK(chan)) 478 chan->channelFlags |= CHANNEL_CW_INT; 479 HALDEBUG(ah, HAL_DEBUG_ANY, 480 "%s: noise floor calibration failed\n", __func__); 481 FAIL(HAL_EIO); 482 } 483 484 /* Start IQ calibration w/ 2^(INIT_IQCAL_LOG_COUNT_MAX+1) samples */ 485 if (ahp->ah_calibrationTime != 0) { 486 OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4, 487 AR_PHY_TIMING_CTRL4_DO_IQCAL | (INIT_IQCAL_LOG_COUNT_MAX << AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX_S)); 488 ahp->ah_bIQCalibration = AH_TRUE; 489 } 490 491 /* set 1:1 QCU to DCU mapping for all queues */ 492 for (q = 0; q < AR_NUM_DCU; q++) 493 OS_REG_WRITE(ah, AR_DQCUMASK(q), 1<<q); 494 495 for (q = 0; q < HAL_NUM_TX_QUEUES; q++) 496 ar5211ResetTxQueue(ah, q); 497 498 /* Setup QCU0 transmit interrupt masks (TX_ERR, TX_OK, TX_DESC, TX_URN) */ 499 OS_REG_WRITE(ah, AR_IMR_S0, 500 (AR_IMR_S0_QCU_TXOK & AR_QCU_0) | 501 (AR_IMR_S0_QCU_TXDESC & (AR_QCU_0<<AR_IMR_S0_QCU_TXDESC_S))); 502 OS_REG_WRITE(ah, AR_IMR_S1, (AR_IMR_S1_QCU_TXERR & AR_QCU_0)); 503 OS_REG_WRITE(ah, AR_IMR_S2, (AR_IMR_S2_QCU_TXURN & AR_QCU_0)); 504 505 /* 506 * GBL_EIFS must always be written after writing 507 * to any QCUMASK register. 508 */ 509 OS_REG_WRITE(ah, AR_D_GBL_IFS_EIFS, OS_REG_READ(ah, AR_D_GBL_IFS_EIFS)); 510 511 /* Now set up the Interrupt Mask Register and save it for future use */ 512 OS_REG_WRITE(ah, AR_IMR, INIT_INTERRUPT_MASK); 513 ahp->ah_maskReg = INIT_INTERRUPT_MASK; 514 515 /* Enable bus error interrupts */ 516 OS_REG_WRITE(ah, AR_IMR_S2, OS_REG_READ(ah, AR_IMR_S2) | 517 AR_IMR_S2_MCABT | AR_IMR_S2_SSERR | AR_IMR_S2_DPERR); 518 519 /* Enable interrupts specific to AP */ 520 if (opmode == HAL_M_HOSTAP) { 521 OS_REG_WRITE(ah, AR_IMR, OS_REG_READ(ah, AR_IMR) | AR_IMR_MIB); 522 ahp->ah_maskReg |= AR_IMR_MIB; 523 } 524 525 if (AH_PRIVATE(ah)->ah_rfkillEnabled) 526 ar5211EnableRfKill(ah); 527 528 /* 529 * Writing to AR_BEACON will start timers. Hence it should 530 * be the last register to be written. Do not reset tsf, do 531 * not enable beacons at this point, but preserve other values 532 * like beaconInterval. 533 */ 534 OS_REG_WRITE(ah, AR_BEACON, 535 (OS_REG_READ(ah, AR_BEACON) &~ (AR_BEACON_EN | AR_BEACON_RESET_TSF))); 536 537 /* Restore user-specified slot time and timeouts */ 538 if (ahp->ah_sifstime != (u_int) -1) 539 ar5211SetSifsTime(ah, ahp->ah_sifstime); 540 if (ahp->ah_slottime != (u_int) -1) 541 ar5211SetSlotTime(ah, ahp->ah_slottime); 542 if (ahp->ah_acktimeout != (u_int) -1) 543 ar5211SetAckTimeout(ah, ahp->ah_acktimeout); 544 if (ahp->ah_ctstimeout != (u_int) -1) 545 ar5211SetCTSTimeout(ah, ahp->ah_ctstimeout); 546 if (AH_PRIVATE(ah)->ah_diagreg != 0) 547 OS_REG_WRITE(ah, AR_DIAG_SW, AH_PRIVATE(ah)->ah_diagreg); 548 549 AH_PRIVATE(ah)->ah_opmode = opmode; /* record operating mode */ 550 551 HALDEBUG(ah, HAL_DEBUG_RESET, "%s: done\n", __func__); 552 553 return AH_TRUE; 554 bad: 555 if (status != AH_NULL) 556 *status = ecode; 557 return AH_FALSE; 558 #undef FAIL 559 #undef N 560 } 561 562 /* 563 * Places the PHY and Radio chips into reset. A full reset 564 * must be called to leave this state. The PCI/MAC/PCU are 565 * not placed into reset as we must receive interrupt to 566 * re-enable the hardware. 567 */ 568 HAL_BOOL 569 ar5211PhyDisable(struct ath_hal *ah) 570 { 571 return ar5211SetResetReg(ah, AR_RC_BB); 572 } 573 574 /* 575 * Places all of hardware into reset 576 */ 577 HAL_BOOL 578 ar5211Disable(struct ath_hal *ah) 579 { 580 if (!ar5211SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) 581 return AH_FALSE; 582 /* 583 * Reset the HW - PCI must be reset after the rest of the 584 * device has been reset. 585 */ 586 if (!ar5211SetResetReg(ah, AR_RC_MAC | AR_RC_BB | AR_RC_PCI)) 587 return AH_FALSE; 588 OS_DELAY(2100); /* 8245 @ 96Mhz hangs with 2000us. */ 589 590 return AH_TRUE; 591 } 592 593 /* 594 * Places the hardware into reset and then pulls it out of reset 595 * 596 * Only write the PLL if we're changing to or from CCK mode 597 * 598 * Attach calls with channelFlags = 0, as the coldreset should have 599 * us in the correct mode and we cannot check the hwchannel flags. 600 */ 601 HAL_BOOL 602 ar5211ChipReset(struct ath_hal *ah, uint16_t channelFlags) 603 { 604 if (!ar5211SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) 605 return AH_FALSE; 606 607 /* Set CCK and Turbo modes correctly */ 608 switch (channelFlags & CHANNEL_ALL) { 609 case CHANNEL_2GHZ|CHANNEL_CCK: 610 case CHANNEL_2GHZ|CHANNEL_CCK|CHANNEL_TURBO: 611 OS_REG_WRITE(ah, AR_PHY_TURBO, 0); 612 OS_REG_WRITE(ah, AR5211_PHY_MODE, 613 AR5211_PHY_MODE_CCK | AR5211_PHY_MODE_RF2GHZ); 614 OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_44); 615 /* Wait for the PLL to settle */ 616 OS_DELAY(DELAY_PLL_SETTLE); 617 break; 618 case CHANNEL_2GHZ|CHANNEL_OFDM: 619 case CHANNEL_2GHZ|CHANNEL_OFDM|CHANNEL_TURBO: 620 OS_REG_WRITE(ah, AR_PHY_TURBO, 0); 621 if (AH_PRIVATE(ah)->ah_devid == AR5211_DEVID) { 622 OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_40); 623 OS_DELAY(DELAY_PLL_SETTLE); 624 OS_REG_WRITE(ah, AR5211_PHY_MODE, 625 AR5211_PHY_MODE_OFDM | AR5211_PHY_MODE_RF2GHZ); 626 } 627 break; 628 case CHANNEL_A: 629 case CHANNEL_T: 630 if (channelFlags & CHANNEL_TURBO) { 631 OS_REG_WRITE(ah, AR_PHY_TURBO, 632 AR_PHY_FC_TURBO_MODE | AR_PHY_FC_TURBO_SHORT); 633 } else { /* 5 GHZ OFDM Mode */ 634 OS_REG_WRITE(ah, AR_PHY_TURBO, 0); 635 } 636 if (AH_PRIVATE(ah)->ah_devid == AR5211_DEVID) { 637 OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_40); 638 OS_DELAY(DELAY_PLL_SETTLE); 639 OS_REG_WRITE(ah, AR5211_PHY_MODE, 640 AR5211_PHY_MODE_OFDM | AR5211_PHY_MODE_RF5GHZ); 641 } 642 break; 643 } 644 /* NB: else no flags set - must be attach calling - do nothing */ 645 646 /* 647 * Reset the HW - PCI must be reset after the rest of the 648 * device has been reset 649 */ 650 if (!ar5211SetResetReg(ah, AR_RC_MAC | AR_RC_BB | AR_RC_PCI)) 651 return AH_FALSE; 652 OS_DELAY(2100); /* 8245 @ 96Mhz hangs with 2000us. */ 653 654 /* Bring out of sleep mode (AGAIN) */ 655 if (!ar5211SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) 656 return AH_FALSE; 657 658 /* Clear warm reset register */ 659 return ar5211SetResetReg(ah, 0); 660 } 661 662 /* 663 * Recalibrate the lower PHY chips to account for temperature/environment 664 * changes. 665 */ 666 HAL_BOOL 667 ar5211PerCalibrationN(struct ath_hal *ah, HAL_CHANNEL *chan, u_int chainMask, 668 HAL_BOOL longCal, HAL_BOOL *isCalDone) 669 { 670 struct ath_hal_5211 *ahp = AH5211(ah); 671 HAL_CHANNEL_INTERNAL *ichan; 672 int32_t qCoff, qCoffDenom; 673 uint32_t data; 674 int32_t iqCorrMeas; 675 int32_t iCoff, iCoffDenom; 676 uint32_t powerMeasQ, powerMeasI; 677 678 ichan = ath_hal_checkchannel(ah, chan); 679 if (ichan == AH_NULL) { 680 HALDEBUG(ah, HAL_DEBUG_ANY, 681 "%s: invalid channel %u/0x%x; no mapping\n", 682 __func__, chan->channel, chan->channelFlags); 683 return AH_FALSE; 684 } 685 /* IQ calibration in progress. Check to see if it has finished. */ 686 if (ahp->ah_bIQCalibration && 687 !(OS_REG_READ(ah, AR_PHY_TIMING_CTRL4) & AR_PHY_TIMING_CTRL4_DO_IQCAL)) { 688 /* IQ Calibration has finished. */ 689 ahp->ah_bIQCalibration = AH_FALSE; 690 691 /* Read calibration results. */ 692 powerMeasI = OS_REG_READ(ah, AR_PHY_IQCAL_RES_PWR_MEAS_I); 693 powerMeasQ = OS_REG_READ(ah, AR_PHY_IQCAL_RES_PWR_MEAS_Q); 694 iqCorrMeas = OS_REG_READ(ah, AR_PHY_IQCAL_RES_IQ_CORR_MEAS); 695 696 /* 697 * Prescale these values to remove 64-bit operation requirement at the loss 698 * of a little precision. 699 */ 700 iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 128; 701 qCoffDenom = powerMeasQ / 64; 702 703 /* Protect against divide-by-0. */ 704 if (iCoffDenom != 0 && qCoffDenom != 0) { 705 iCoff = (-iqCorrMeas) / iCoffDenom; 706 /* IQCORR_Q_I_COFF is a signed 6 bit number */ 707 iCoff = iCoff & 0x3f; 708 709 qCoff = ((int32_t)powerMeasI / qCoffDenom) - 64; 710 /* IQCORR_Q_Q_COFF is a signed 5 bit number */ 711 qCoff = qCoff & 0x1f; 712 713 HALDEBUG(ah, HAL_DEBUG_PERCAL, "powerMeasI = 0x%08x\n", 714 powerMeasI); 715 HALDEBUG(ah, HAL_DEBUG_PERCAL, "powerMeasQ = 0x%08x\n", 716 powerMeasQ); 717 HALDEBUG(ah, HAL_DEBUG_PERCAL, "iqCorrMeas = 0x%08x\n", 718 iqCorrMeas); 719 HALDEBUG(ah, HAL_DEBUG_PERCAL, "iCoff = %d\n", 720 iCoff); 721 HALDEBUG(ah, HAL_DEBUG_PERCAL, "qCoff = %d\n", 722 qCoff); 723 724 /* Write IQ */ 725 data = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4) | 726 AR_PHY_TIMING_CTRL4_IQCORR_ENABLE | 727 (((uint32_t)iCoff) << AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF_S) | 728 ((uint32_t)qCoff); 729 OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4, data); 730 } 731 } 732 *isCalDone = !ahp->ah_bIQCalibration; 733 734 if (longCal) { 735 /* Perform noise floor and set status */ 736 if (!ar5211IsNfGood(ah, ichan)) { 737 /* report up and clear internal state */ 738 chan->channelFlags |= CHANNEL_CW_INT; 739 ichan->channelFlags &= ~CHANNEL_CW_INT; 740 return AH_FALSE; 741 } 742 if (!ar5211CalNoiseFloor(ah, ichan)) { 743 /* 744 * Delay 5ms before retrying the noise floor 745 * just to make sure, as we are in an error 746 * condition here. 747 */ 748 OS_DELAY(5000); 749 if (!ar5211CalNoiseFloor(ah, ichan)) { 750 if (!IS_CHAN_CCK(chan)) 751 chan->channelFlags |= CHANNEL_CW_INT; 752 return AH_FALSE; 753 } 754 } 755 ar5211RequestRfgain(ah); 756 } 757 return AH_TRUE; 758 } 759 760 HAL_BOOL 761 ar5211PerCalibration(struct ath_hal *ah, HAL_CHANNEL *chan, HAL_BOOL *isIQdone) 762 { 763 return ar5211PerCalibrationN(ah, chan, 0x1, AH_TRUE, isIQdone); 764 } 765 766 HAL_BOOL 767 ar5211ResetCalValid(struct ath_hal *ah, HAL_CHANNEL *chan) 768 { 769 /* XXX */ 770 return AH_TRUE; 771 } 772 773 /* 774 * Writes the given reset bit mask into the reset register 775 */ 776 static HAL_BOOL 777 ar5211SetResetReg(struct ath_hal *ah, uint32_t resetMask) 778 { 779 uint32_t mask = resetMask ? resetMask : ~0; 780 HAL_BOOL rt; 781 782 (void) OS_REG_READ(ah, AR_RXDP);/* flush any pending MMR writes */ 783 OS_REG_WRITE(ah, AR_RC, resetMask); 784 785 /* need to wait at least 128 clocks when reseting PCI before read */ 786 OS_DELAY(15); 787 788 resetMask &= AR_RC_MAC | AR_RC_BB; 789 mask &= AR_RC_MAC | AR_RC_BB; 790 rt = ath_hal_wait(ah, AR_RC, mask, resetMask); 791 if ((resetMask & AR_RC_MAC) == 0) { 792 if (isBigEndian()) { 793 /* 794 * Set CFG, little-endian for register 795 * and descriptor accesses. 796 */ 797 mask = INIT_CONFIG_STATUS | 798 AR_CFG_SWTD | AR_CFG_SWRD | AR_CFG_SWRG; 799 OS_REG_WRITE(ah, AR_CFG, LE_READ_4(&mask)); 800 } else 801 OS_REG_WRITE(ah, AR_CFG, INIT_CONFIG_STATUS); 802 } 803 return rt; 804 } 805 806 /* 807 * Takes the MHz channel value and sets the Channel value 808 * 809 * ASSUMES: Writes enabled to analog bus before AGC is active 810 * or by disabling the AGC. 811 */ 812 static HAL_BOOL 813 ar5211SetChannel(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan) 814 { 815 uint32_t refClk, reg32, data2111; 816 int16_t chan5111, chanIEEE; 817 818 chanIEEE = ath_hal_mhz2ieee(ah, chan->channel, chan->channelFlags); 819 if (IS_CHAN_2GHZ(chan)) { 820 const CHAN_INFO_2GHZ* ci = 821 &chan2GHzData[chanIEEE + CI_2GHZ_INDEX_CORRECTION]; 822 823 data2111 = ((ath_hal_reverseBits(ci->channelSelect, 8) & 0xff) 824 << 5) 825 | (ci->refClkSel << 4); 826 chan5111 = ci->channel5111; 827 } else { 828 data2111 = 0; 829 chan5111 = chanIEEE; 830 } 831 832 /* Rest of the code is common for 5 GHz and 2.4 GHz. */ 833 if (chan5111 >= 145 || (chan5111 & 0x1)) { 834 reg32 = ath_hal_reverseBits(chan5111 - 24, 8) & 0xFF; 835 refClk = 1; 836 } else { 837 reg32 = ath_hal_reverseBits(((chan5111 - 24) / 2), 8) & 0xFF; 838 refClk = 0; 839 } 840 841 reg32 = (reg32 << 2) | (refClk << 1) | (1 << 10) | 0x1; 842 OS_REG_WRITE(ah, AR_PHY(0x27), ((data2111 & 0xff) << 8) | (reg32 & 0xff)); 843 reg32 >>= 8; 844 OS_REG_WRITE(ah, AR_PHY(0x34), (data2111 & 0xff00) | (reg32 & 0xff)); 845 846 AH_PRIVATE(ah)->ah_curchan = chan; 847 return AH_TRUE; 848 } 849 850 static int16_t 851 ar5211GetNoiseFloor(struct ath_hal *ah) 852 { 853 int16_t nf; 854 855 nf = (OS_REG_READ(ah, AR_PHY(25)) >> 19) & 0x1ff; 856 if (nf & 0x100) 857 nf = 0 - ((nf ^ 0x1ff) + 1); 858 return nf; 859 } 860 861 /* 862 * Peform the noisefloor calibration for the length of time set 863 * in runTime (valid values 1 to 7) 864 * 865 * Returns: The NF value at the end of the given time (or 0 for failure) 866 */ 867 int16_t 868 ar5211RunNoiseFloor(struct ath_hal *ah, uint8_t runTime, int16_t startingNF) 869 { 870 int i, searchTime; 871 872 HALASSERT(runTime <= 7); 873 874 /* Setup noise floor run time and starting value */ 875 OS_REG_WRITE(ah, AR_PHY(25), 876 (OS_REG_READ(ah, AR_PHY(25)) & ~0xFFF) | 877 ((runTime << 9) & 0xE00) | (startingNF & 0x1FF)); 878 /* Calibrate the noise floor */ 879 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 880 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_NF); 881 882 /* Compute the required amount of searchTime needed to finish NF */ 883 if (runTime == 0) { 884 /* 8 search windows * 6.4us each */ 885 searchTime = 8 * 7; 886 } else { 887 /* 512 * runtime search windows * 6.4us each */ 888 searchTime = (runTime * 512) * 7; 889 } 890 891 /* 892 * Do not read noise floor until it has been updated 893 * 894 * As a guesstimate - we may only get 1/60th the time on 895 * the air to see search windows in a heavily congested 896 * network (40 us every 2400 us of time) 897 */ 898 for (i = 0; i < 60; i++) { 899 if ((OS_REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) == 0) 900 break; 901 OS_DELAY(searchTime); 902 } 903 if (i >= 60) { 904 HALDEBUG(ah, HAL_DEBUG_NFCAL, 905 "NF with runTime %d failed to end on channel %d\n", 906 runTime, AH_PRIVATE(ah)->ah_curchan->channel); 907 HALDEBUG(ah, HAL_DEBUG_NFCAL, 908 " PHY NF Reg state: 0x%x\n", 909 OS_REG_READ(ah, AR_PHY_AGC_CONTROL)); 910 HALDEBUG(ah, HAL_DEBUG_NFCAL, 911 " PHY Active Reg state: 0x%x\n", 912 OS_REG_READ(ah, AR_PHY_ACTIVE)); 913 return 0; 914 } 915 916 return ar5211GetNoiseFloor(ah); 917 } 918 919 static HAL_BOOL 920 getNoiseFloorThresh(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan, int16_t *nft) 921 { 922 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 923 924 switch (chan->channelFlags & CHANNEL_ALL_NOTURBO) { 925 case CHANNEL_A: 926 *nft = ee->ee_noiseFloorThresh[0]; 927 break; 928 case CHANNEL_CCK|CHANNEL_2GHZ: 929 *nft = ee->ee_noiseFloorThresh[1]; 930 break; 931 case CHANNEL_OFDM|CHANNEL_2GHZ: 932 *nft = ee->ee_noiseFloorThresh[2]; 933 break; 934 default: 935 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 936 __func__, chan->channelFlags); 937 return AH_FALSE; 938 } 939 return AH_TRUE; 940 } 941 942 /* 943 * Read the NF and check it against the noise floor threshhold 944 * 945 * Returns: TRUE if the NF is good 946 */ 947 static HAL_BOOL 948 ar5211IsNfGood(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan) 949 { 950 int16_t nf, nfThresh; 951 952 if (!getNoiseFloorThresh(ah, chan, &nfThresh)) 953 return AH_FALSE; 954 #ifdef AH_DEBUG 955 if (OS_REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) 956 HALDEBUG(ah, HAL_DEBUG_ANY, 957 "%s: NF did not complete in calibration window\n", __func__); 958 #endif 959 nf = ar5211GetNoiseFloor(ah); 960 if (nf > nfThresh) { 961 HALDEBUG(ah, HAL_DEBUG_ANY, 962 "%s: noise floor failed; detected %u, threshold %u\n", 963 __func__, nf, nfThresh); 964 /* 965 * NB: Don't discriminate 2.4 vs 5Ghz, if this 966 * happens it indicates a problem regardless 967 * of the band. 968 */ 969 chan->channelFlags |= CHANNEL_CW_INT; 970 } 971 chan->rawNoiseFloor = nf; 972 return (nf <= nfThresh); 973 } 974 975 /* 976 * Peform the noisefloor calibration and check for any constant channel 977 * interference. 978 * 979 * NOTE: preAR5211 have a lengthy carrier wave detection process - hence 980 * it is if'ed for MKK regulatory domain only. 981 * 982 * Returns: TRUE for a successful noise floor calibration; else FALSE 983 */ 984 HAL_BOOL 985 ar5211CalNoiseFloor(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan) 986 { 987 #define N(a) (sizeof (a) / sizeof (a[0])) 988 /* Check for Carrier Wave interference in MKK regulatory zone */ 989 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU && 990 ath_hal_getnfcheckrequired(ah, (HAL_CHANNEL *) chan)) { 991 static const uint8_t runtime[3] = { 0, 2, 7 }; 992 int16_t nf, nfThresh; 993 int i; 994 995 if (!getNoiseFloorThresh(ah, chan, &nfThresh)) 996 return AH_FALSE; 997 /* 998 * Run a quick noise floor that will hopefully 999 * complete (decrease delay time). 1000 */ 1001 for (i = 0; i < N(runtime); i++) { 1002 nf = ar5211RunNoiseFloor(ah, runtime[i], 0); 1003 if (nf > nfThresh) { 1004 HALDEBUG(ah, HAL_DEBUG_ANY, 1005 "%s: run failed with %u > threshold %u " 1006 "(runtime %u)\n", __func__, 1007 nf, nfThresh, runtime[i]); 1008 chan->rawNoiseFloor = 0; 1009 } else 1010 chan->rawNoiseFloor = nf; 1011 } 1012 return (i <= N(runtime)); 1013 } else { 1014 /* Calibrate the noise floor */ 1015 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 1016 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | 1017 AR_PHY_AGC_CONTROL_NF); 1018 } 1019 return AH_TRUE; 1020 #undef N 1021 } 1022 1023 /* 1024 * Adjust NF based on statistical values for 5GHz frequencies. 1025 */ 1026 int16_t 1027 ar5211GetNfAdjust(struct ath_hal *ah, const HAL_CHANNEL_INTERNAL *c) 1028 { 1029 static const struct { 1030 uint16_t freqLow; 1031 int16_t adjust; 1032 } adjust5111[] = { 1033 { 5790, 11 }, /* NB: ordered high -> low */ 1034 { 5730, 10 }, 1035 { 5690, 9 }, 1036 { 5660, 8 }, 1037 { 5610, 7 }, 1038 { 5530, 5 }, 1039 { 5450, 4 }, 1040 { 5379, 2 }, 1041 { 5209, 0 }, /* XXX? bogus but doesn't matter */ 1042 { 0, 1 }, 1043 }; 1044 int i; 1045 1046 for (i = 0; c->channel <= adjust5111[i].freqLow; i++) 1047 ; 1048 /* NB: placeholder for 5111's less severe requirement */ 1049 return adjust5111[i].adjust / 3; 1050 } 1051 1052 /* 1053 * Reads EEPROM header info from device structure and programs 1054 * analog registers 6 and 7 1055 * 1056 * REQUIRES: Access to the analog device 1057 */ 1058 static HAL_BOOL 1059 ar5211SetRf6and7(struct ath_hal *ah, HAL_CHANNEL *chan) 1060 { 1061 #define N(a) (sizeof (a) / sizeof (a[0])) 1062 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1063 struct ath_hal_5211 *ahp = AH5211(ah); 1064 uint16_t rfXpdGain, rfPloSel, rfPwdXpd; 1065 uint16_t tempOB, tempDB; 1066 uint16_t freqIndex; 1067 int i; 1068 1069 freqIndex = (chan->channelFlags & CHANNEL_2GHZ) ? 2 : 1; 1070 1071 /* 1072 * TODO: This array mode correspondes with the index used 1073 * during the read. 1074 * For readability, this should be changed to an enum or #define 1075 */ 1076 switch (chan->channelFlags & CHANNEL_ALL_NOTURBO) { 1077 case CHANNEL_A: 1078 if (chan->channel > 4000 && chan->channel < 5260) { 1079 tempOB = ee->ee_ob1; 1080 tempDB = ee->ee_db1; 1081 } else if (chan->channel >= 5260 && chan->channel < 5500) { 1082 tempOB = ee->ee_ob2; 1083 tempDB = ee->ee_db2; 1084 } else if (chan->channel >= 5500 && chan->channel < 5725) { 1085 tempOB = ee->ee_ob3; 1086 tempDB = ee->ee_db3; 1087 } else if (chan->channel >= 5725) { 1088 tempOB = ee->ee_ob4; 1089 tempDB = ee->ee_db4; 1090 } else { 1091 /* XXX panic?? */ 1092 tempOB = tempDB = 0; 1093 } 1094 1095 rfXpdGain = ee->ee_xgain[0]; 1096 rfPloSel = ee->ee_xpd[0]; 1097 rfPwdXpd = !ee->ee_xpd[0]; 1098 1099 ar5211Rf6n7[5][freqIndex] = 1100 (ar5211Rf6n7[5][freqIndex] & ~0x10000000) | 1101 (ee->ee_cornerCal.pd84<< 28); 1102 ar5211Rf6n7[6][freqIndex] = 1103 (ar5211Rf6n7[6][freqIndex] & ~0x04000000) | 1104 (ee->ee_cornerCal.pd90 << 26); 1105 ar5211Rf6n7[21][freqIndex] = 1106 (ar5211Rf6n7[21][freqIndex] & ~0x08) | 1107 (ee->ee_cornerCal.gSel << 3); 1108 break; 1109 case CHANNEL_CCK|CHANNEL_2GHZ: 1110 tempOB = ee->ee_obFor24; 1111 tempDB = ee->ee_dbFor24; 1112 rfXpdGain = ee->ee_xgain[1]; 1113 rfPloSel = ee->ee_xpd[1]; 1114 rfPwdXpd = !ee->ee_xpd[1]; 1115 break; 1116 case CHANNEL_OFDM|CHANNEL_2GHZ: 1117 tempOB = ee->ee_obFor24g; 1118 tempDB = ee->ee_dbFor24g; 1119 rfXpdGain = ee->ee_xgain[2]; 1120 rfPloSel = ee->ee_xpd[2]; 1121 rfPwdXpd = !ee->ee_xpd[2]; 1122 break; 1123 default: 1124 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1125 __func__, chan->channelFlags); 1126 return AH_FALSE; 1127 } 1128 1129 HALASSERT(1 <= tempOB && tempOB <= 5); 1130 HALASSERT(1 <= tempDB && tempDB <= 5); 1131 1132 /* Set rfXpdGain and rfPwdXpd */ 1133 ar5211Rf6n7[11][freqIndex] = (ar5211Rf6n7[11][freqIndex] & ~0xC0) | 1134 (((ath_hal_reverseBits(rfXpdGain, 4) << 7) | (rfPwdXpd << 6)) & 0xC0); 1135 ar5211Rf6n7[12][freqIndex] = (ar5211Rf6n7[12][freqIndex] & ~0x07) | 1136 ((ath_hal_reverseBits(rfXpdGain, 4) >> 1) & 0x07); 1137 1138 /* Set OB */ 1139 ar5211Rf6n7[12][freqIndex] = (ar5211Rf6n7[12][freqIndex] & ~0x80) | 1140 ((ath_hal_reverseBits(tempOB, 3) << 7) & 0x80); 1141 ar5211Rf6n7[13][freqIndex] = (ar5211Rf6n7[13][freqIndex] & ~0x03) | 1142 ((ath_hal_reverseBits(tempOB, 3) >> 1) & 0x03); 1143 1144 /* Set DB */ 1145 ar5211Rf6n7[13][freqIndex] = (ar5211Rf6n7[13][freqIndex] & ~0x1C) | 1146 ((ath_hal_reverseBits(tempDB, 3) << 2) & 0x1C); 1147 1148 /* Set rfPloSel */ 1149 ar5211Rf6n7[17][freqIndex] = (ar5211Rf6n7[17][freqIndex] & ~0x08) | 1150 ((rfPloSel << 3) & 0x08); 1151 1152 /* Write the Rf registers 6 & 7 */ 1153 for (i = 0; i < N(ar5211Rf6n7); i++) 1154 OS_REG_WRITE(ah, ar5211Rf6n7[i][0], ar5211Rf6n7[i][freqIndex]); 1155 1156 /* Now that we have reprogrammed rfgain value, clear the flag. */ 1157 ahp->ah_rfgainState = RFGAIN_INACTIVE; 1158 1159 return AH_TRUE; 1160 #undef N 1161 } 1162 1163 HAL_BOOL 1164 ar5211SetAntennaSwitchInternal(struct ath_hal *ah, HAL_ANT_SETTING settings, 1165 const HAL_CHANNEL *chan) 1166 { 1167 #define ANT_SWITCH_TABLE1 0x9960 1168 #define ANT_SWITCH_TABLE2 0x9964 1169 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1170 struct ath_hal_5211 *ahp = AH5211(ah); 1171 uint32_t antSwitchA, antSwitchB; 1172 int ix; 1173 1174 switch (chan->channelFlags & CHANNEL_ALL_NOTURBO) { 1175 case CHANNEL_A: ix = 0; break; 1176 case CHANNEL_B: ix = 1; break; 1177 case CHANNEL_PUREG: ix = 2; break; 1178 default: 1179 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1180 __func__, chan->channelFlags); 1181 return AH_FALSE; 1182 } 1183 1184 antSwitchA = ee->ee_antennaControl[1][ix] 1185 | (ee->ee_antennaControl[2][ix] << 6) 1186 | (ee->ee_antennaControl[3][ix] << 12) 1187 | (ee->ee_antennaControl[4][ix] << 18) 1188 | (ee->ee_antennaControl[5][ix] << 24) 1189 ; 1190 antSwitchB = ee->ee_antennaControl[6][ix] 1191 | (ee->ee_antennaControl[7][ix] << 6) 1192 | (ee->ee_antennaControl[8][ix] << 12) 1193 | (ee->ee_antennaControl[9][ix] << 18) 1194 | (ee->ee_antennaControl[10][ix] << 24) 1195 ; 1196 /* 1197 * For fixed antenna, give the same setting for both switch banks 1198 */ 1199 switch (settings) { 1200 case HAL_ANT_FIXED_A: 1201 antSwitchB = antSwitchA; 1202 break; 1203 case HAL_ANT_FIXED_B: 1204 antSwitchA = antSwitchB; 1205 break; 1206 case HAL_ANT_VARIABLE: 1207 break; 1208 default: 1209 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad antenna setting %u\n", 1210 __func__, settings); 1211 return AH_FALSE; 1212 } 1213 ahp->ah_diversityControl = settings; 1214 1215 OS_REG_WRITE(ah, ANT_SWITCH_TABLE1, antSwitchA); 1216 OS_REG_WRITE(ah, ANT_SWITCH_TABLE2, antSwitchB); 1217 1218 return AH_TRUE; 1219 #undef ANT_SWITCH_TABLE1 1220 #undef ANT_SWITCH_TABLE2 1221 } 1222 1223 /* 1224 * Reads EEPROM header info and programs the device for correct operation 1225 * given the channel value 1226 */ 1227 static HAL_BOOL 1228 ar5211SetBoardValues(struct ath_hal *ah, HAL_CHANNEL *chan) 1229 { 1230 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1231 struct ath_hal_5211 *ahp = AH5211(ah); 1232 int arrayMode, falseDectectBackoff; 1233 1234 switch (chan->channelFlags & CHANNEL_ALL_NOTURBO) { 1235 case CHANNEL_A: 1236 arrayMode = 0; 1237 OS_REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, 1238 AR_PHY_FRAME_CTL_TX_CLIP, ee->ee_cornerCal.clip); 1239 break; 1240 case CHANNEL_CCK|CHANNEL_2GHZ: 1241 arrayMode = 1; 1242 break; 1243 case CHANNEL_OFDM|CHANNEL_2GHZ: 1244 arrayMode = 2; 1245 break; 1246 default: 1247 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1248 __func__, chan->channelFlags); 1249 return AH_FALSE; 1250 } 1251 1252 /* Set the antenna register(s) correctly for the chip revision */ 1253 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) { 1254 OS_REG_WRITE(ah, AR_PHY(68), 1255 (OS_REG_READ(ah, AR_PHY(68)) & 0xFFFFFFFC) | 0x3); 1256 } else { 1257 OS_REG_WRITE(ah, AR_PHY(68), 1258 (OS_REG_READ(ah, AR_PHY(68)) & 0xFFFFFC06) | 1259 (ee->ee_antennaControl[0][arrayMode] << 4) | 0x1); 1260 1261 ar5211SetAntennaSwitchInternal(ah, 1262 ahp->ah_diversityControl, chan); 1263 1264 /* Set the Noise Floor Thresh on ar5211 devices */ 1265 OS_REG_WRITE(ah, AR_PHY_BASE + (90 << 2), 1266 (ee->ee_noiseFloorThresh[arrayMode] & 0x1FF) | (1<<9)); 1267 } 1268 OS_REG_WRITE(ah, AR_PHY_BASE + (17 << 2), 1269 (OS_REG_READ(ah, AR_PHY_BASE + (17 << 2)) & 0xFFFFC07F) | 1270 ((ee->ee_switchSettling[arrayMode] << 7) & 0x3F80)); 1271 OS_REG_WRITE(ah, AR_PHY_BASE + (18 << 2), 1272 (OS_REG_READ(ah, AR_PHY_BASE + (18 << 2)) & 0xFFFC0FFF) | 1273 ((ee->ee_txrxAtten[arrayMode] << 12) & 0x3F000)); 1274 OS_REG_WRITE(ah, AR_PHY_BASE + (20 << 2), 1275 (OS_REG_READ(ah, AR_PHY_BASE + (20 << 2)) & 0xFFFF0000) | 1276 ((ee->ee_pgaDesiredSize[arrayMode] << 8) & 0xFF00) | 1277 (ee->ee_adcDesiredSize[arrayMode] & 0x00FF)); 1278 OS_REG_WRITE(ah, AR_PHY_BASE + (13 << 2), 1279 (ee->ee_txEndToXPAOff[arrayMode] << 24) | 1280 (ee->ee_txEndToXPAOff[arrayMode] << 16) | 1281 (ee->ee_txFrameToXPAOn[arrayMode] << 8) | 1282 ee->ee_txFrameToXPAOn[arrayMode]); 1283 OS_REG_WRITE(ah, AR_PHY_BASE + (10 << 2), 1284 (OS_REG_READ(ah, AR_PHY_BASE + (10 << 2)) & 0xFFFF00FF) | 1285 (ee->ee_txEndToXLNAOn[arrayMode] << 8)); 1286 OS_REG_WRITE(ah, AR_PHY_BASE + (25 << 2), 1287 (OS_REG_READ(ah, AR_PHY_BASE + (25 << 2)) & 0xFFF80FFF) | 1288 ((ee->ee_thresh62[arrayMode] << 12) & 0x7F000)); 1289 1290 #define NO_FALSE_DETECT_BACKOFF 2 1291 #define CB22_FALSE_DETECT_BACKOFF 6 1292 /* 1293 * False detect backoff - suspected 32 MHz spur causes 1294 * false detects in OFDM, causing Tx Hangs. Decrease 1295 * weak signal sensitivity for this card. 1296 */ 1297 falseDectectBackoff = NO_FALSE_DETECT_BACKOFF; 1298 if (AH_PRIVATE(ah)->ah_eeversion < AR_EEPROM_VER3_3) { 1299 if (AH_PRIVATE(ah)->ah_subvendorid == 0x1022 && 1300 IS_CHAN_OFDM(chan)) 1301 falseDectectBackoff += CB22_FALSE_DETECT_BACKOFF; 1302 } else { 1303 uint32_t remainder = chan->channel % 32; 1304 1305 if (remainder && (remainder < 10 || remainder > 22)) 1306 falseDectectBackoff += ee->ee_falseDetectBackoff[arrayMode]; 1307 } 1308 OS_REG_WRITE(ah, 0x9924, 1309 (OS_REG_READ(ah, 0x9924) & 0xFFFFFF01) 1310 | ((falseDectectBackoff << 1) & 0xF7)); 1311 1312 return AH_TRUE; 1313 #undef NO_FALSE_DETECT_BACKOFF 1314 #undef CB22_FALSE_DETECT_BACKOFF 1315 } 1316 1317 /* 1318 * Set the limit on the overall output power. Used for dynamic 1319 * transmit power control and the like. 1320 * 1321 * NOTE: The power is passed in is in units of 0.5 dBm. 1322 */ 1323 HAL_BOOL 1324 ar5211SetTxPowerLimit(struct ath_hal *ah, uint32_t limit) 1325 { 1326 1327 AH_PRIVATE(ah)->ah_powerLimit = AH_MIN(limit, MAX_RATE_POWER); 1328 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE_MAX, limit); 1329 return AH_TRUE; 1330 } 1331 1332 /* 1333 * Sets the transmit power in the baseband for the given 1334 * operating channel and mode. 1335 */ 1336 HAL_BOOL 1337 ar5211SetTransmitPower(struct ath_hal *ah, HAL_CHANNEL *chan) 1338 { 1339 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1340 TRGT_POWER_INFO *pi; 1341 RD_EDGES_POWER *rep; 1342 PCDACS_EEPROM eepromPcdacs; 1343 u_int nchan, cfgCtl; 1344 int i; 1345 1346 /* setup the pcdac struct to point to the correct info, based on mode */ 1347 switch (chan->channelFlags & CHANNEL_ALL_NOTURBO) { 1348 case CHANNEL_A: 1349 eepromPcdacs.numChannels = ee->ee_numChannels11a; 1350 eepromPcdacs.pChannelList= ee->ee_channels11a; 1351 eepromPcdacs.pDataPerChannel = ee->ee_dataPerChannel11a; 1352 nchan = ee->ee_numTargetPwr_11a; 1353 pi = ee->ee_trgtPwr_11a; 1354 break; 1355 case CHANNEL_OFDM|CHANNEL_2GHZ: 1356 eepromPcdacs.numChannels = ee->ee_numChannels2_4; 1357 eepromPcdacs.pChannelList= ee->ee_channels11g; 1358 eepromPcdacs.pDataPerChannel = ee->ee_dataPerChannel11g; 1359 nchan = ee->ee_numTargetPwr_11g; 1360 pi = ee->ee_trgtPwr_11g; 1361 break; 1362 case CHANNEL_CCK|CHANNEL_2GHZ: 1363 eepromPcdacs.numChannels = ee->ee_numChannels2_4; 1364 eepromPcdacs.pChannelList= ee->ee_channels11b; 1365 eepromPcdacs.pDataPerChannel = ee->ee_dataPerChannel11b; 1366 nchan = ee->ee_numTargetPwr_11b; 1367 pi = ee->ee_trgtPwr_11b; 1368 break; 1369 default: 1370 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1371 __func__, chan->channelFlags); 1372 return AH_FALSE; 1373 } 1374 1375 ar5211SetPowerTable(ah, &eepromPcdacs, chan->channel); 1376 1377 rep = AH_NULL; 1378 /* Match CTL to EEPROM value */ 1379 cfgCtl = ath_hal_getctl(ah, chan); 1380 for (i = 0; i < ee->ee_numCtls; i++) 1381 if (ee->ee_ctl[i] != 0 && ee->ee_ctl[i] == cfgCtl) { 1382 rep = &ee->ee_rdEdgesPower[i * NUM_EDGES]; 1383 break; 1384 } 1385 ar5211SetRateTable(ah, rep, pi, nchan, chan); 1386 1387 return AH_TRUE; 1388 } 1389 1390 /* 1391 * Read the transmit power levels from the structures taken 1392 * from EEPROM. Interpolate read transmit power values for 1393 * this channel. Organize the transmit power values into a 1394 * table for writing into the hardware. 1395 */ 1396 void 1397 ar5211SetPowerTable(struct ath_hal *ah, PCDACS_EEPROM *pSrcStruct, uint16_t channel) 1398 { 1399 static FULL_PCDAC_STRUCT pcdacStruct; 1400 static uint16_t pcdacTable[PWR_TABLE_SIZE]; 1401 1402 uint16_t i, j; 1403 uint16_t *pPcdacValues; 1404 int16_t *pScaledUpDbm; 1405 int16_t minScaledPwr; 1406 int16_t maxScaledPwr; 1407 int16_t pwr; 1408 uint16_t pcdacMin = 0; 1409 uint16_t pcdacMax = 63; 1410 uint16_t pcdacTableIndex; 1411 uint16_t scaledPcdac; 1412 uint32_t addr; 1413 uint32_t temp32; 1414 1415 OS_MEMZERO(&pcdacStruct, sizeof(FULL_PCDAC_STRUCT)); 1416 OS_MEMZERO(pcdacTable, sizeof(uint16_t) * PWR_TABLE_SIZE); 1417 pPcdacValues = pcdacStruct.PcdacValues; 1418 pScaledUpDbm = pcdacStruct.PwrValues; 1419 1420 /* Initialize the pcdacs to dBM structs pcdacs to be 1 to 63 */ 1421 for (i = PCDAC_START, j = 0; i <= PCDAC_STOP; i+= PCDAC_STEP, j++) 1422 pPcdacValues[j] = i; 1423 1424 pcdacStruct.numPcdacValues = j; 1425 pcdacStruct.pcdacMin = PCDAC_START; 1426 pcdacStruct.pcdacMax = PCDAC_STOP; 1427 1428 /* Fill out the power values for this channel */ 1429 for (j = 0; j < pcdacStruct.numPcdacValues; j++ ) 1430 pScaledUpDbm[j] = ar5211GetScaledPower(channel, pPcdacValues[j], pSrcStruct); 1431 1432 /* Now scale the pcdac values to fit in the 64 entry power table */ 1433 minScaledPwr = pScaledUpDbm[0]; 1434 maxScaledPwr = pScaledUpDbm[pcdacStruct.numPcdacValues - 1]; 1435 1436 /* find minimum and make monotonic */ 1437 for (j = 0; j < pcdacStruct.numPcdacValues; j++) { 1438 if (minScaledPwr >= pScaledUpDbm[j]) { 1439 minScaledPwr = pScaledUpDbm[j]; 1440 pcdacMin = j; 1441 } 1442 /* 1443 * Make the full_hsh monotonically increasing otherwise 1444 * interpolation algorithm will get fooled gotta start 1445 * working from the top, hence i = 63 - j. 1446 */ 1447 i = (uint16_t)(pcdacStruct.numPcdacValues - 1 - j); 1448 if (i == 0) 1449 break; 1450 if (pScaledUpDbm[i-1] > pScaledUpDbm[i]) { 1451 /* 1452 * It could be a glitch, so make the power for 1453 * this pcdac the same as the power from the 1454 * next highest pcdac. 1455 */ 1456 pScaledUpDbm[i - 1] = pScaledUpDbm[i]; 1457 } 1458 } 1459 1460 for (j = 0; j < pcdacStruct.numPcdacValues; j++) 1461 if (maxScaledPwr < pScaledUpDbm[j]) { 1462 maxScaledPwr = pScaledUpDbm[j]; 1463 pcdacMax = j; 1464 } 1465 1466 /* Find the first power level with a pcdac */ 1467 pwr = (uint16_t)(PWR_STEP * ((minScaledPwr - PWR_MIN + PWR_STEP / 2) / PWR_STEP) + PWR_MIN); 1468 1469 /* Write all the first pcdac entries based off the pcdacMin */ 1470 pcdacTableIndex = 0; 1471 for (i = 0; i < (2 * (pwr - PWR_MIN) / EEP_SCALE + 1); i++) 1472 pcdacTable[pcdacTableIndex++] = pcdacMin; 1473 1474 i = 0; 1475 while (pwr < pScaledUpDbm[pcdacStruct.numPcdacValues - 1]) { 1476 pwr += PWR_STEP; 1477 /* stop if dbM > max_power_possible */ 1478 while (pwr < pScaledUpDbm[pcdacStruct.numPcdacValues - 1] && 1479 (pwr - pScaledUpDbm[i])*(pwr - pScaledUpDbm[i+1]) > 0) 1480 i++; 1481 /* scale by 2 and add 1 to enable round up or down as needed */ 1482 scaledPcdac = (uint16_t)(ar5211GetInterpolatedValue(pwr, 1483 pScaledUpDbm[i], pScaledUpDbm[i+1], 1484 (uint16_t)(pPcdacValues[i] * 2), 1485 (uint16_t)(pPcdacValues[i+1] * 2), 0) + 1); 1486 1487 pcdacTable[pcdacTableIndex] = scaledPcdac / 2; 1488 if (pcdacTable[pcdacTableIndex] > pcdacMax) 1489 pcdacTable[pcdacTableIndex] = pcdacMax; 1490 pcdacTableIndex++; 1491 } 1492 1493 /* Write all the last pcdac entries based off the last valid pcdac */ 1494 while (pcdacTableIndex < PWR_TABLE_SIZE) { 1495 pcdacTable[pcdacTableIndex] = pcdacTable[pcdacTableIndex - 1]; 1496 pcdacTableIndex++; 1497 } 1498 1499 /* Finally, write the power values into the baseband power table */ 1500 addr = AR_PHY_BASE + (608 << 2); 1501 for (i = 0; i < 32; i++) { 1502 temp32 = 0xffff & ((pcdacTable[2 * i + 1] << 8) | 0xff); 1503 temp32 = (temp32 << 16) | (0xffff & ((pcdacTable[2 * i] << 8) | 0xff)); 1504 OS_REG_WRITE(ah, addr, temp32); 1505 addr += 4; 1506 } 1507 1508 } 1509 1510 /* 1511 * Set the transmit power in the baseband for the given 1512 * operating channel and mode. 1513 */ 1514 void 1515 ar5211SetRateTable(struct ath_hal *ah, RD_EDGES_POWER *pRdEdgesPower, 1516 TRGT_POWER_INFO *pPowerInfo, uint16_t numChannels, 1517 HAL_CHANNEL *chan) 1518 { 1519 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1520 struct ath_hal_5211 *ahp = AH5211(ah); 1521 static uint16_t ratesArray[NUM_RATES]; 1522 static const uint16_t tpcScaleReductionTable[5] = 1523 { 0, 3, 6, 9, MAX_RATE_POWER }; 1524 1525 uint16_t *pRatesPower; 1526 uint16_t lowerChannel = 0, lowerIndex=0, lowerPower=0; 1527 uint16_t upperChannel = 0, upperIndex=0, upperPower=0; 1528 uint16_t twiceMaxEdgePower=63; 1529 uint16_t twicePower = 0; 1530 uint16_t i, numEdges; 1531 uint16_t tempChannelList[NUM_EDGES]; /* temp array for holding edge channels */ 1532 uint16_t twiceMaxRDPower; 1533 int16_t scaledPower = 0; /* for gcc -O2 */ 1534 uint16_t mask = 0x3f; 1535 HAL_BOOL paPreDEnable = 0; 1536 int8_t twiceAntennaGain, twiceAntennaReduction = 0; 1537 1538 pRatesPower = ratesArray; 1539 twiceMaxRDPower = chan->maxRegTxPower * 2; 1540 1541 if (IS_CHAN_5GHZ(chan)) { 1542 twiceAntennaGain = ee->ee_antennaGainMax[0]; 1543 } else { 1544 twiceAntennaGain = ee->ee_antennaGainMax[1]; 1545 } 1546 1547 twiceAntennaReduction = ath_hal_getantennareduction(ah, chan, twiceAntennaGain); 1548 1549 if (pRdEdgesPower) { 1550 /* Get the edge power */ 1551 for (i = 0; i < NUM_EDGES; i++) { 1552 if (pRdEdgesPower[i].rdEdge == 0) 1553 break; 1554 tempChannelList[i] = pRdEdgesPower[i].rdEdge; 1555 } 1556 numEdges = i; 1557 1558 ar5211GetLowerUpperValues(chan->channel, tempChannelList, 1559 numEdges, &lowerChannel, &upperChannel); 1560 /* Get the index for this channel */ 1561 for (i = 0; i < numEdges; i++) 1562 if (lowerChannel == tempChannelList[i]) 1563 break; 1564 HALASSERT(i != numEdges); 1565 1566 if ((lowerChannel == upperChannel && 1567 lowerChannel == chan->channel) || 1568 pRdEdgesPower[i].flag) { 1569 twiceMaxEdgePower = pRdEdgesPower[i].twice_rdEdgePower; 1570 HALASSERT(twiceMaxEdgePower > 0); 1571 } 1572 } 1573 1574 /* extrapolate the power values for the test Groups */ 1575 for (i = 0; i < numChannels; i++) 1576 tempChannelList[i] = pPowerInfo[i].testChannel; 1577 1578 ar5211GetLowerUpperValues(chan->channel, tempChannelList, 1579 numChannels, &lowerChannel, &upperChannel); 1580 1581 /* get the index for the channel */ 1582 for (i = 0; i < numChannels; i++) { 1583 if (lowerChannel == tempChannelList[i]) 1584 lowerIndex = i; 1585 if (upperChannel == tempChannelList[i]) { 1586 upperIndex = i; 1587 break; 1588 } 1589 } 1590 1591 for (i = 0; i < NUM_RATES; i++) { 1592 if (IS_CHAN_OFDM(chan)) { 1593 /* power for rates 6,9,12,18,24 is all the same */ 1594 if (i < 5) { 1595 lowerPower = pPowerInfo[lowerIndex].twicePwr6_24; 1596 upperPower = pPowerInfo[upperIndex].twicePwr6_24; 1597 } else if (i == 5) { 1598 lowerPower = pPowerInfo[lowerIndex].twicePwr36; 1599 upperPower = pPowerInfo[upperIndex].twicePwr36; 1600 } else if (i == 6) { 1601 lowerPower = pPowerInfo[lowerIndex].twicePwr48; 1602 upperPower = pPowerInfo[upperIndex].twicePwr48; 1603 } else if (i == 7) { 1604 lowerPower = pPowerInfo[lowerIndex].twicePwr54; 1605 upperPower = pPowerInfo[upperIndex].twicePwr54; 1606 } 1607 } else { 1608 switch (i) { 1609 case 0: 1610 case 1: 1611 lowerPower = pPowerInfo[lowerIndex].twicePwr6_24; 1612 upperPower = pPowerInfo[upperIndex].twicePwr6_24; 1613 break; 1614 case 2: 1615 case 3: 1616 lowerPower = pPowerInfo[lowerIndex].twicePwr36; 1617 upperPower = pPowerInfo[upperIndex].twicePwr36; 1618 break; 1619 case 4: 1620 case 5: 1621 lowerPower = pPowerInfo[lowerIndex].twicePwr48; 1622 upperPower = pPowerInfo[upperIndex].twicePwr48; 1623 break; 1624 case 6: 1625 case 7: 1626 lowerPower = pPowerInfo[lowerIndex].twicePwr54; 1627 upperPower = pPowerInfo[upperIndex].twicePwr54; 1628 break; 1629 } 1630 } 1631 1632 twicePower = ar5211GetInterpolatedValue(chan->channel, 1633 lowerChannel, upperChannel, lowerPower, upperPower, 0); 1634 1635 /* Reduce power by band edge restrictions */ 1636 twicePower = AH_MIN(twicePower, twiceMaxEdgePower); 1637 1638 /* 1639 * If turbo is set, reduce power to keep power 1640 * consumption under 2 Watts. Note that we always do 1641 * this unless specially configured. Then we limit 1642 * power only for non-AP operation. 1643 */ 1644 if (IS_CHAN_TURBO(chan) && 1645 AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3_1 1646 #ifdef AH_ENABLE_AP_SUPPORT 1647 && AH_PRIVATE(ah)->ah_opmode != HAL_M_HOSTAP 1648 #endif 1649 ) { 1650 twicePower = AH_MIN(twicePower, ee->ee_turbo2WMaxPower5); 1651 } 1652 1653 /* Reduce power by max regulatory domain allowed restrictions */ 1654 pRatesPower[i] = AH_MIN(twicePower, twiceMaxRDPower - twiceAntennaReduction); 1655 1656 /* Use 6 Mb power level for transmit power scaling reduction */ 1657 /* We don't want to reduce higher rates if its not needed */ 1658 if (i == 0) { 1659 scaledPower = pRatesPower[0] - 1660 (tpcScaleReductionTable[AH_PRIVATE(ah)->ah_tpScale] * 2); 1661 if (scaledPower < 1) 1662 scaledPower = 1; 1663 } 1664 1665 pRatesPower[i] = AH_MIN(pRatesPower[i], scaledPower); 1666 } 1667 1668 /* Record txPower at Rate 6 for info gathering */ 1669 ahp->ah_tx6PowerInHalfDbm = pRatesPower[0]; 1670 1671 #ifdef AH_DEBUG 1672 HALDEBUG(ah, HAL_DEBUG_RESET, 1673 "%s: final output power setting %d MHz:\n", 1674 __func__, chan->channel); 1675 HALDEBUG(ah, HAL_DEBUG_RESET, 1676 "6 Mb %d dBm, MaxRD: %d dBm, MaxEdge %d dBm\n", 1677 scaledPower / 2, twiceMaxRDPower / 2, twiceMaxEdgePower / 2); 1678 HALDEBUG(ah, HAL_DEBUG_RESET, "TPC Scale %d dBm - Ant Red %d dBm\n", 1679 tpcScaleReductionTable[AH_PRIVATE(ah)->ah_tpScale] * 2, 1680 twiceAntennaReduction / 2); 1681 if (IS_CHAN_TURBO(chan) && 1682 AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3_1) 1683 HALDEBUG(ah, HAL_DEBUG_RESET, "Max Turbo %d dBm\n", 1684 ee->ee_turbo2WMaxPower5); 1685 HALDEBUG(ah, HAL_DEBUG_RESET, 1686 " %2d | %2d | %2d | %2d | %2d | %2d | %2d | %2d dBm\n", 1687 pRatesPower[0] / 2, pRatesPower[1] / 2, pRatesPower[2] / 2, 1688 pRatesPower[3] / 2, pRatesPower[4] / 2, pRatesPower[5] / 2, 1689 pRatesPower[6] / 2, pRatesPower[7] / 2); 1690 #endif /* AH_DEBUG */ 1691 1692 /* Write the power table into the hardware */ 1693 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE1, 1694 ((paPreDEnable & 1)<< 30) | ((pRatesPower[3] & mask) << 24) | 1695 ((paPreDEnable & 1)<< 22) | ((pRatesPower[2] & mask) << 16) | 1696 ((paPreDEnable & 1)<< 14) | ((pRatesPower[1] & mask) << 8) | 1697 ((paPreDEnable & 1)<< 6 ) | (pRatesPower[0] & mask)); 1698 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE2, 1699 ((paPreDEnable & 1)<< 30) | ((pRatesPower[7] & mask) << 24) | 1700 ((paPreDEnable & 1)<< 22) | ((pRatesPower[6] & mask) << 16) | 1701 ((paPreDEnable & 1)<< 14) | ((pRatesPower[5] & mask) << 8) | 1702 ((paPreDEnable & 1)<< 6 ) | (pRatesPower[4] & mask)); 1703 1704 /* set max power to the power value at rate 6 */ 1705 ar5211SetTxPowerLimit(ah, pRatesPower[0]); 1706 1707 AH_PRIVATE(ah)->ah_maxPowerLevel = pRatesPower[0]; 1708 } 1709 1710 /* 1711 * Get or interpolate the pcdac value from the calibrated data 1712 */ 1713 uint16_t 1714 ar5211GetScaledPower(uint16_t channel, uint16_t pcdacValue, const PCDACS_EEPROM *pSrcStruct) 1715 { 1716 uint16_t powerValue; 1717 uint16_t lFreq = 0, rFreq = 0; /* left and right frequency values */ 1718 uint16_t llPcdac = 0, ulPcdac = 0; /* lower and upper left pcdac values */ 1719 uint16_t lrPcdac = 0, urPcdac = 0; /* lower and upper right pcdac values */ 1720 uint16_t lPwr = 0, uPwr = 0; /* lower and upper temp pwr values */ 1721 uint16_t lScaledPwr, rScaledPwr; /* left and right scaled power */ 1722 1723 if (ar5211FindValueInList(channel, pcdacValue, pSrcStruct, &powerValue)) 1724 /* value was copied from srcStruct */ 1725 return powerValue; 1726 1727 ar5211GetLowerUpperValues(channel, pSrcStruct->pChannelList, 1728 pSrcStruct->numChannels, &lFreq, &rFreq); 1729 ar5211GetLowerUpperPcdacs(pcdacValue, lFreq, pSrcStruct, 1730 &llPcdac, &ulPcdac); 1731 ar5211GetLowerUpperPcdacs(pcdacValue, rFreq, pSrcStruct, 1732 &lrPcdac, &urPcdac); 1733 1734 /* get the power index for the pcdac value */ 1735 ar5211FindValueInList(lFreq, llPcdac, pSrcStruct, &lPwr); 1736 ar5211FindValueInList(lFreq, ulPcdac, pSrcStruct, &uPwr); 1737 lScaledPwr = ar5211GetInterpolatedValue(pcdacValue, 1738 llPcdac, ulPcdac, lPwr, uPwr, 0); 1739 1740 ar5211FindValueInList(rFreq, lrPcdac, pSrcStruct, &lPwr); 1741 ar5211FindValueInList(rFreq, urPcdac, pSrcStruct, &uPwr); 1742 rScaledPwr = ar5211GetInterpolatedValue(pcdacValue, 1743 lrPcdac, urPcdac, lPwr, uPwr, 0); 1744 1745 return ar5211GetInterpolatedValue(channel, lFreq, rFreq, 1746 lScaledPwr, rScaledPwr, 0); 1747 } 1748 1749 /* 1750 * Find the value from the calibrated source data struct 1751 */ 1752 HAL_BOOL 1753 ar5211FindValueInList(uint16_t channel, uint16_t pcdacValue, 1754 const PCDACS_EEPROM *pSrcStruct, uint16_t *powerValue) 1755 { 1756 const DATA_PER_CHANNEL *pChannelData; 1757 const uint16_t *pPcdac; 1758 uint16_t i, j; 1759 1760 pChannelData = pSrcStruct->pDataPerChannel; 1761 for (i = 0; i < pSrcStruct->numChannels; i++ ) { 1762 if (pChannelData->channelValue == channel) { 1763 pPcdac = pChannelData->PcdacValues; 1764 for (j = 0; j < pChannelData->numPcdacValues; j++ ) { 1765 if (*pPcdac == pcdacValue) { 1766 *powerValue = pChannelData->PwrValues[j]; 1767 return AH_TRUE; 1768 } 1769 pPcdac++; 1770 } 1771 } 1772 pChannelData++; 1773 } 1774 return AH_FALSE; 1775 } 1776 1777 /* 1778 * Returns interpolated or the scaled up interpolated value 1779 */ 1780 uint16_t 1781 ar5211GetInterpolatedValue(uint16_t target, 1782 uint16_t srcLeft, uint16_t srcRight, 1783 uint16_t targetLeft, uint16_t targetRight, 1784 HAL_BOOL scaleUp) 1785 { 1786 uint16_t rv; 1787 int16_t lRatio; 1788 uint16_t scaleValue = EEP_SCALE; 1789 1790 /* to get an accurate ratio, always scale, if want to scale, then don't scale back down */ 1791 if ((targetLeft * targetRight) == 0) 1792 return 0; 1793 if (scaleUp) 1794 scaleValue = 1; 1795 1796 if (srcRight != srcLeft) { 1797 /* 1798 * Note the ratio always need to be scaled, 1799 * since it will be a fraction. 1800 */ 1801 lRatio = (target - srcLeft) * EEP_SCALE / (srcRight - srcLeft); 1802 if (lRatio < 0) { 1803 /* Return as Left target if value would be negative */ 1804 rv = targetLeft * (scaleUp ? EEP_SCALE : 1); 1805 } else if (lRatio > EEP_SCALE) { 1806 /* Return as Right target if Ratio is greater than 100% (SCALE) */ 1807 rv = targetRight * (scaleUp ? EEP_SCALE : 1); 1808 } else { 1809 rv = (lRatio * targetRight + (EEP_SCALE - lRatio) * 1810 targetLeft) / scaleValue; 1811 } 1812 } else { 1813 rv = targetLeft; 1814 if (scaleUp) 1815 rv *= EEP_SCALE; 1816 } 1817 return rv; 1818 } 1819 1820 /* 1821 * Look for value being within 0.1 of the search values 1822 * however, NDIS can't do float calculations, so multiply everything 1823 * up by EEP_SCALE so can do integer arithmatic 1824 * 1825 * INPUT value -value to search for 1826 * INPUT pList -ptr to the list to search 1827 * INPUT listSize -number of entries in list 1828 * OUTPUT pLowerValue -return the lower value 1829 * OUTPUT pUpperValue -return the upper value 1830 */ 1831 void 1832 ar5211GetLowerUpperValues(uint16_t value, 1833 const uint16_t *pList, uint16_t listSize, 1834 uint16_t *pLowerValue, uint16_t *pUpperValue) 1835 { 1836 const uint16_t listEndValue = *(pList + listSize - 1); 1837 uint32_t target = value * EEP_SCALE; 1838 int i; 1839 1840 /* 1841 * See if value is lower than the first value in the list 1842 * if so return first value 1843 */ 1844 if (target < (uint32_t)(*pList * EEP_SCALE - EEP_DELTA)) { 1845 *pLowerValue = *pList; 1846 *pUpperValue = *pList; 1847 return; 1848 } 1849 1850 /* 1851 * See if value is greater than last value in list 1852 * if so return last value 1853 */ 1854 if (target > (uint32_t)(listEndValue * EEP_SCALE + EEP_DELTA)) { 1855 *pLowerValue = listEndValue; 1856 *pUpperValue = listEndValue; 1857 return; 1858 } 1859 1860 /* look for value being near or between 2 values in list */ 1861 for (i = 0; i < listSize; i++) { 1862 /* 1863 * If value is close to the current value of the list 1864 * then target is not between values, it is one of the values 1865 */ 1866 if (abs(pList[i] * EEP_SCALE - (int32_t) target) < EEP_DELTA) { 1867 *pLowerValue = pList[i]; 1868 *pUpperValue = pList[i]; 1869 return; 1870 } 1871 1872 /* 1873 * Look for value being between current value and next value 1874 * if so return these 2 values 1875 */ 1876 if (target < (uint32_t)(pList[i + 1] * EEP_SCALE - EEP_DELTA)) { 1877 *pLowerValue = pList[i]; 1878 *pUpperValue = pList[i + 1]; 1879 return; 1880 } 1881 } 1882 } 1883 1884 /* 1885 * Get the upper and lower pcdac given the channel and the pcdac 1886 * used in the search 1887 */ 1888 void 1889 ar5211GetLowerUpperPcdacs(uint16_t pcdac, uint16_t channel, 1890 const PCDACS_EEPROM *pSrcStruct, 1891 uint16_t *pLowerPcdac, uint16_t *pUpperPcdac) 1892 { 1893 const DATA_PER_CHANNEL *pChannelData; 1894 int i; 1895 1896 /* Find the channel information */ 1897 pChannelData = pSrcStruct->pDataPerChannel; 1898 for (i = 0; i < pSrcStruct->numChannels; i++) { 1899 if (pChannelData->channelValue == channel) 1900 break; 1901 pChannelData++; 1902 } 1903 ar5211GetLowerUpperValues(pcdac, pChannelData->PcdacValues, 1904 pChannelData->numPcdacValues, pLowerPcdac, pUpperPcdac); 1905 } 1906 1907 #define DYN_ADJ_UP_MARGIN 15 1908 #define DYN_ADJ_LO_MARGIN 20 1909 1910 static const GAIN_OPTIMIZATION_LADDER gainLadder = { 1911 9, /* numStepsInLadder */ 1912 4, /* defaultStepNum */ 1913 { { {4, 1, 1, 1}, 6, "FG8"}, 1914 { {4, 0, 1, 1}, 4, "FG7"}, 1915 { {3, 1, 1, 1}, 3, "FG6"}, 1916 { {4, 0, 0, 1}, 1, "FG5"}, 1917 { {4, 1, 1, 0}, 0, "FG4"}, /* noJack */ 1918 { {4, 0, 1, 0}, -2, "FG3"}, /* halfJack */ 1919 { {3, 1, 1, 0}, -3, "FG2"}, /* clip3 */ 1920 { {4, 0, 0, 0}, -4, "FG1"}, /* noJack */ 1921 { {2, 1, 1, 0}, -6, "FG0"} /* clip2 */ 1922 } 1923 }; 1924 1925 /* 1926 * Initialize the gain structure to good values 1927 */ 1928 void 1929 ar5211InitializeGainValues(struct ath_hal *ah) 1930 { 1931 struct ath_hal_5211 *ahp = AH5211(ah); 1932 GAIN_VALUES *gv = &ahp->ah_gainValues; 1933 1934 /* initialize gain optimization values */ 1935 gv->currStepNum = gainLadder.defaultStepNum; 1936 gv->currStep = &gainLadder.optStep[gainLadder.defaultStepNum]; 1937 gv->active = AH_TRUE; 1938 gv->loTrig = 20; 1939 gv->hiTrig = 35; 1940 } 1941 1942 static HAL_BOOL 1943 ar5211InvalidGainReadback(struct ath_hal *ah, GAIN_VALUES *gv) 1944 { 1945 HAL_CHANNEL_INTERNAL *chan = AH_PRIVATE(ah)->ah_curchan; 1946 uint32_t gStep, g; 1947 uint32_t L1, L2, L3, L4; 1948 1949 if (IS_CHAN_CCK(chan)) { 1950 gStep = 0x18; 1951 L1 = 0; 1952 L2 = gStep + 4; 1953 L3 = 0x40; 1954 L4 = L3 + 50; 1955 1956 gv->loTrig = L1; 1957 gv->hiTrig = L4+5; 1958 } else { 1959 gStep = 0x3f; 1960 L1 = 0; 1961 L2 = 50; 1962 L3 = L1; 1963 L4 = L3 + 50; 1964 1965 gv->loTrig = L1 + DYN_ADJ_LO_MARGIN; 1966 gv->hiTrig = L4 - DYN_ADJ_UP_MARGIN; 1967 } 1968 g = gv->currGain; 1969 1970 return !((g >= L1 && g<= L2) || (g >= L3 && g <= L4)); 1971 } 1972 1973 /* 1974 * Enable the probe gain check on the next packet 1975 */ 1976 static void 1977 ar5211RequestRfgain(struct ath_hal *ah) 1978 { 1979 struct ath_hal_5211 *ahp = AH5211(ah); 1980 1981 /* Enable the gain readback probe */ 1982 OS_REG_WRITE(ah, AR_PHY_PAPD_PROBE, 1983 SM(ahp->ah_tx6PowerInHalfDbm, AR_PHY_PAPD_PROBE_POWERTX) 1984 | AR_PHY_PAPD_PROBE_NEXT_TX); 1985 1986 ahp->ah_rfgainState = HAL_RFGAIN_READ_REQUESTED; 1987 } 1988 1989 /* 1990 * Exported call to check for a recent gain reading and return 1991 * the current state of the thermal calibration gain engine. 1992 */ 1993 HAL_RFGAIN 1994 ar5211GetRfgain(struct ath_hal *ah) 1995 { 1996 struct ath_hal_5211 *ahp = AH5211(ah); 1997 GAIN_VALUES *gv = &ahp->ah_gainValues; 1998 uint32_t rddata; 1999 2000 if (!gv->active) 2001 return HAL_RFGAIN_INACTIVE; 2002 2003 if (ahp->ah_rfgainState == HAL_RFGAIN_READ_REQUESTED) { 2004 /* Caller had asked to setup a new reading. Check it. */ 2005 rddata = OS_REG_READ(ah, AR_PHY_PAPD_PROBE); 2006 2007 if ((rddata & AR_PHY_PAPD_PROBE_NEXT_TX) == 0) { 2008 /* bit got cleared, we have a new reading. */ 2009 gv->currGain = rddata >> AR_PHY_PAPD_PROBE_GAINF_S; 2010 /* inactive by default */ 2011 ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE; 2012 2013 if (!ar5211InvalidGainReadback(ah, gv) && 2014 ar5211IsGainAdjustNeeded(ah, gv) && 2015 ar5211AdjustGain(ah, gv) > 0) { 2016 /* 2017 * Change needed. Copy ladder info 2018 * into eeprom info. 2019 */ 2020 ar5211SetRfgain(ah, gv); 2021 ahp->ah_rfgainState = HAL_RFGAIN_NEED_CHANGE; 2022 } 2023 } 2024 } 2025 return ahp->ah_rfgainState; 2026 } 2027 2028 /* 2029 * Check to see if our readback gain level sits within the linear 2030 * region of our current variable attenuation window 2031 */ 2032 static HAL_BOOL 2033 ar5211IsGainAdjustNeeded(struct ath_hal *ah, const GAIN_VALUES *gv) 2034 { 2035 return (gv->currGain <= gv->loTrig || gv->currGain >= gv->hiTrig); 2036 } 2037 2038 /* 2039 * Move the rabbit ears in the correct direction. 2040 */ 2041 static int32_t 2042 ar5211AdjustGain(struct ath_hal *ah, GAIN_VALUES *gv) 2043 { 2044 /* return > 0 for valid adjustments. */ 2045 if (!gv->active) 2046 return -1; 2047 2048 gv->currStep = &gainLadder.optStep[gv->currStepNum]; 2049 if (gv->currGain >= gv->hiTrig) { 2050 if (gv->currStepNum == 0) { 2051 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2052 "%s: Max gain limit.\n", __func__); 2053 return -1; 2054 } 2055 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2056 "%s: Adding gain: currG=%d [%s] --> ", 2057 __func__, gv->currGain, gv->currStep->stepName); 2058 gv->targetGain = gv->currGain; 2059 while (gv->targetGain >= gv->hiTrig && gv->currStepNum > 0) { 2060 gv->targetGain -= 2 * (gainLadder.optStep[--(gv->currStepNum)].stepGain - 2061 gv->currStep->stepGain); 2062 gv->currStep = &gainLadder.optStep[gv->currStepNum]; 2063 } 2064 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "targG=%d [%s]\n", 2065 gv->targetGain, gv->currStep->stepName); 2066 return 1; 2067 } 2068 if (gv->currGain <= gv->loTrig) { 2069 if (gv->currStepNum == gainLadder.numStepsInLadder-1) { 2070 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2071 "%s: Min gain limit.\n", __func__); 2072 return -2; 2073 } 2074 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2075 "%s: Deducting gain: currG=%d [%s] --> ", 2076 __func__, gv->currGain, gv->currStep->stepName); 2077 gv->targetGain = gv->currGain; 2078 while (gv->targetGain <= gv->loTrig && 2079 gv->currStepNum < (gainLadder.numStepsInLadder - 1)) { 2080 gv->targetGain -= 2 * 2081 (gainLadder.optStep[++(gv->currStepNum)].stepGain - gv->currStep->stepGain); 2082 gv->currStep = &gainLadder.optStep[gv->currStepNum]; 2083 } 2084 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "targG=%d [%s]\n", 2085 gv->targetGain, gv->currStep->stepName); 2086 return 2; 2087 } 2088 return 0; /* caller didn't call needAdjGain first */ 2089 } 2090 2091 /* 2092 * Adjust the 5GHz EEPROM information with the desired calibration values. 2093 */ 2094 static void 2095 ar5211SetRfgain(struct ath_hal *ah, const GAIN_VALUES *gv) 2096 { 2097 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 2098 2099 if (!gv->active) 2100 return; 2101 ee->ee_cornerCal.clip = gv->currStep->paramVal[0]; /* bb_tx_clip */ 2102 ee->ee_cornerCal.pd90 = gv->currStep->paramVal[1]; /* rf_pwd_90 */ 2103 ee->ee_cornerCal.pd84 = gv->currStep->paramVal[2]; /* rf_pwd_84 */ 2104 ee->ee_cornerCal.gSel = gv->currStep->paramVal[3]; /* rf_rfgainsel */ 2105 } 2106 2107 static void 2108 ar5211SetOperatingMode(struct ath_hal *ah, int opmode) 2109 { 2110 struct ath_hal_5211 *ahp = AH5211(ah); 2111 uint32_t val; 2112 2113 val = OS_REG_READ(ah, AR_STA_ID1) & 0xffff; 2114 switch (opmode) { 2115 case HAL_M_HOSTAP: 2116 OS_REG_WRITE(ah, AR_STA_ID1, val 2117 | AR_STA_ID1_STA_AP 2118 | AR_STA_ID1_RTS_USE_DEF 2119 | ahp->ah_staId1Defaults); 2120 break; 2121 case HAL_M_IBSS: 2122 OS_REG_WRITE(ah, AR_STA_ID1, val 2123 | AR_STA_ID1_ADHOC 2124 | AR_STA_ID1_DESC_ANTENNA 2125 | ahp->ah_staId1Defaults); 2126 break; 2127 case HAL_M_STA: 2128 case HAL_M_MONITOR: 2129 OS_REG_WRITE(ah, AR_STA_ID1, val 2130 | AR_STA_ID1_DEFAULT_ANTENNA 2131 | ahp->ah_staId1Defaults); 2132 break; 2133 } 2134 } 2135 2136 void 2137 ar5211SetPCUConfig(struct ath_hal *ah) 2138 { 2139 ar5211SetOperatingMode(ah, AH_PRIVATE(ah)->ah_opmode); 2140 } 2141
Indexes created Mon Sep 22 21:09:42 GMT 2025