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sys/dev/ath/ath_hal/ar5211/ar5211_reset.c
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1 /*- 2 * SPDX-License-Identifier: ISC 3 * 4 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 5 * Copyright (c) 2002-2006 Atheros Communications, Inc. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 * 19 * $FreeBSD$ 20 */ 21 #include "opt_ah.h" 22 23 /* 24 * Chips specific device attachment and device info collection 25 * Connects Init Reg Vectors, EEPROM Data, and device Functions. 26 */ 27 #include "ah.h" 28 #include "ah_internal.h" 29 #include "ah_devid.h" 30 31 #include "ar5211/ar5211.h" 32 #include "ar5211/ar5211reg.h" 33 #include "ar5211/ar5211phy.h" 34 35 #include "ah_eeprom_v3.h" 36 37 /* Add static register initialization vectors */ 38 #include "ar5211/boss.ini" 39 40 /* 41 * Structure to hold 11b tuning information for Beanie/Sombrero 42 * 16 MHz mode, divider ratio = 198 = NP+S. N=16, S=4 or 6, P=12 43 */ 44 typedef struct { 45 uint32_t refClkSel; /* reference clock, 1 for 16 MHz */ 46 uint32_t channelSelect; /* P[7:4]S[3:0] bits */ 47 uint16_t channel5111; /* 11a channel for 5111 */ 48 } CHAN_INFO_2GHZ; 49 50 #define CI_2GHZ_INDEX_CORRECTION 19 51 static const CHAN_INFO_2GHZ chan2GHzData[] = { 52 { 1, 0x46, 96 }, /* 2312 -19 */ 53 { 1, 0x46, 97 }, /* 2317 -18 */ 54 { 1, 0x46, 98 }, /* 2322 -17 */ 55 { 1, 0x46, 99 }, /* 2327 -16 */ 56 { 1, 0x46, 100 }, /* 2332 -15 */ 57 { 1, 0x46, 101 }, /* 2337 -14 */ 58 { 1, 0x46, 102 }, /* 2342 -13 */ 59 { 1, 0x46, 103 }, /* 2347 -12 */ 60 { 1, 0x46, 104 }, /* 2352 -11 */ 61 { 1, 0x46, 105 }, /* 2357 -10 */ 62 { 1, 0x46, 106 }, /* 2362 -9 */ 63 { 1, 0x46, 107 }, /* 2367 -8 */ 64 { 1, 0x46, 108 }, /* 2372 -7 */ 65 /* index -6 to 0 are pad to make this a nolookup table */ 66 { 1, 0x46, 116 }, /* -6 */ 67 { 1, 0x46, 116 }, /* -5 */ 68 { 1, 0x46, 116 }, /* -4 */ 69 { 1, 0x46, 116 }, /* -3 */ 70 { 1, 0x46, 116 }, /* -2 */ 71 { 1, 0x46, 116 }, /* -1 */ 72 { 1, 0x46, 116 }, /* 0 */ 73 { 1, 0x46, 116 }, /* 2412 1 */ 74 { 1, 0x46, 117 }, /* 2417 2 */ 75 { 1, 0x46, 118 }, /* 2422 3 */ 76 { 1, 0x46, 119 }, /* 2427 4 */ 77 { 1, 0x46, 120 }, /* 2432 5 */ 78 { 1, 0x46, 121 }, /* 2437 6 */ 79 { 1, 0x46, 122 }, /* 2442 7 */ 80 { 1, 0x46, 123 }, /* 2447 8 */ 81 { 1, 0x46, 124 }, /* 2452 9 */ 82 { 1, 0x46, 125 }, /* 2457 10 */ 83 { 1, 0x46, 126 }, /* 2462 11 */ 84 { 1, 0x46, 127 }, /* 2467 12 */ 85 { 1, 0x46, 128 }, /* 2472 13 */ 86 { 1, 0x44, 124 }, /* 2484 14 */ 87 { 1, 0x46, 136 }, /* 2512 15 */ 88 { 1, 0x46, 140 }, /* 2532 16 */ 89 { 1, 0x46, 144 }, /* 2552 17 */ 90 { 1, 0x46, 148 }, /* 2572 18 */ 91 { 1, 0x46, 152 }, /* 2592 19 */ 92 { 1, 0x46, 156 }, /* 2612 20 */ 93 { 1, 0x46, 160 }, /* 2632 21 */ 94 { 1, 0x46, 164 }, /* 2652 22 */ 95 { 1, 0x46, 168 }, /* 2672 23 */ 96 { 1, 0x46, 172 }, /* 2692 24 */ 97 { 1, 0x46, 176 }, /* 2712 25 */ 98 { 1, 0x46, 180 } /* 2732 26 */ 99 }; 100 101 /* Power timeouts in usec to wait for chip to wake-up. */ 102 #define POWER_UP_TIME 2000 103 104 #define DELAY_PLL_SETTLE 300 /* 300 us */ 105 #define DELAY_BASE_ACTIVATE 100 /* 100 us */ 106 107 #define NUM_RATES 8 108 109 static HAL_BOOL ar5211SetResetReg(struct ath_hal *ah, uint32_t resetMask); 110 static HAL_BOOL ar5211SetChannel(struct ath_hal *, 111 const struct ieee80211_channel *); 112 static int16_t ar5211RunNoiseFloor(struct ath_hal *, 113 uint8_t runTime, int16_t startingNF); 114 static HAL_BOOL ar5211IsNfGood(struct ath_hal *, 115 struct ieee80211_channel *chan); 116 static HAL_BOOL ar5211SetRf6and7(struct ath_hal *, 117 const struct ieee80211_channel *chan); 118 static HAL_BOOL ar5211SetBoardValues(struct ath_hal *, 119 const struct ieee80211_channel *chan); 120 static void ar5211SetPowerTable(struct ath_hal *, 121 PCDACS_EEPROM *pSrcStruct, uint16_t channel); 122 static HAL_BOOL ar5211SetTransmitPower(struct ath_hal *, 123 const struct ieee80211_channel *); 124 static void ar5211SetRateTable(struct ath_hal *, 125 RD_EDGES_POWER *pRdEdgesPower, TRGT_POWER_INFO *pPowerInfo, 126 uint16_t numChannels, const struct ieee80211_channel *chan); 127 static uint16_t ar5211GetScaledPower(uint16_t channel, uint16_t pcdacValue, 128 const PCDACS_EEPROM *pSrcStruct); 129 static HAL_BOOL ar5211FindValueInList(uint16_t channel, uint16_t pcdacValue, 130 const PCDACS_EEPROM *pSrcStruct, uint16_t *powerValue); 131 static uint16_t ar5211GetInterpolatedValue(uint16_t target, 132 uint16_t srcLeft, uint16_t srcRight, 133 uint16_t targetLeft, uint16_t targetRight, HAL_BOOL scaleUp); 134 static void ar5211GetLowerUpperValues(uint16_t value, 135 const uint16_t *pList, uint16_t listSize, 136 uint16_t *pLowerValue, uint16_t *pUpperValue); 137 static void ar5211GetLowerUpperPcdacs(uint16_t pcdac, 138 uint16_t channel, const PCDACS_EEPROM *pSrcStruct, 139 uint16_t *pLowerPcdac, uint16_t *pUpperPcdac); 140 141 static void ar5211SetRfgain(struct ath_hal *, const GAIN_VALUES *); 142 static void ar5211RequestRfgain(struct ath_hal *); 143 static HAL_BOOL ar5211InvalidGainReadback(struct ath_hal *, GAIN_VALUES *); 144 static HAL_BOOL ar5211IsGainAdjustNeeded(struct ath_hal *, const GAIN_VALUES *); 145 static int32_t ar5211AdjustGain(struct ath_hal *, GAIN_VALUES *); 146 static void ar5211SetOperatingMode(struct ath_hal *, int opmode); 147 148 /* 149 * Places the device in and out of reset and then places sane 150 * values in the registers based on EEPROM config, initialization 151 * vectors (as determined by the mode), and station configuration 152 * 153 * bChannelChange is used to preserve DMA/PCU registers across 154 * a HW Reset during channel change. 155 */ 156 HAL_BOOL 157 ar5211Reset(struct ath_hal *ah, HAL_OPMODE opmode, 158 struct ieee80211_channel *chan, HAL_BOOL bChannelChange, 159 HAL_RESET_TYPE resetType, 160 HAL_STATUS *status) 161 { 162 uint32_t softLedCfg, softLedState; 163 #define N(a) (sizeof (a) /sizeof (a[0])) 164 #define FAIL(_code) do { ecode = _code; goto bad; } while (0) 165 struct ath_hal_5211 *ahp = AH5211(ah); 166 HAL_CHANNEL_INTERNAL *ichan; 167 uint32_t i, ledstate; 168 HAL_STATUS ecode; 169 int q; 170 171 uint32_t data, synthDelay; 172 uint32_t macStaId1; 173 uint16_t modesIndex = 0, freqIndex = 0; 174 uint32_t saveFrameSeqCount[AR_NUM_DCU]; 175 uint32_t saveTsfLow = 0, saveTsfHigh = 0; 176 uint32_t saveDefAntenna; 177 178 HALDEBUG(ah, HAL_DEBUG_RESET, 179 "%s: opmode %u channel %u/0x%x %s channel\n", 180 __func__, opmode, chan->ic_freq, chan->ic_flags, 181 bChannelChange ? "change" : "same"); 182 183 OS_MARK(ah, AH_MARK_RESET, bChannelChange); 184 /* 185 * Map public channel to private. 186 */ 187 ichan = ath_hal_checkchannel(ah, chan); 188 if (ichan == AH_NULL) 189 FAIL(HAL_EINVAL); 190 switch (opmode) { 191 case HAL_M_STA: 192 case HAL_M_IBSS: 193 case HAL_M_HOSTAP: 194 case HAL_M_MONITOR: 195 break; 196 default: 197 HALDEBUG(ah, HAL_DEBUG_ANY, 198 "%s: invalid operating mode %u\n", __func__, opmode); 199 FAIL(HAL_EINVAL); 200 break; 201 } 202 HALASSERT(AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3); 203 204 /* Preserve certain DMA hardware registers on a channel change */ 205 if (bChannelChange) { 206 /* 207 * Need to save/restore the TSF because of an issue 208 * that accelerates the TSF during a chip reset. 209 * 210 * We could use system timer routines to more 211 * accurately restore the TSF, but 212 * 1. Timer routines on certain platforms are 213 * not accurate enough (e.g. 1 ms resolution). 214 * 2. It would still not be accurate. 215 * 216 * The most important aspect of this workaround, 217 * is that, after reset, the TSF is behind 218 * other STAs TSFs. This will allow the STA to 219 * properly resynchronize its TSF in adhoc mode. 220 */ 221 saveTsfLow = OS_REG_READ(ah, AR_TSF_L32); 222 saveTsfHigh = OS_REG_READ(ah, AR_TSF_U32); 223 224 /* Read frame sequence count */ 225 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 226 saveFrameSeqCount[0] = OS_REG_READ(ah, AR_D0_SEQNUM); 227 } else { 228 for (i = 0; i < AR_NUM_DCU; i++) 229 saveFrameSeqCount[i] = OS_REG_READ(ah, AR_DSEQNUM(i)); 230 } 231 if (!IEEE80211_IS_CHAN_DFS(chan)) 232 chan->ic_state &= ~IEEE80211_CHANSTATE_CWINT; 233 } 234 235 /* 236 * Preserve the antenna on a channel change 237 */ 238 saveDefAntenna = OS_REG_READ(ah, AR_DEF_ANTENNA); 239 if (saveDefAntenna == 0) 240 saveDefAntenna = 1; 241 242 /* Save hardware flag before chip reset clears the register */ 243 macStaId1 = OS_REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B; 244 245 /* Save led state from pci config register */ 246 ledstate = OS_REG_READ(ah, AR_PCICFG) & 247 (AR_PCICFG_LEDCTL | AR_PCICFG_LEDMODE | AR_PCICFG_LEDBLINK | 248 AR_PCICFG_LEDSLOW); 249 softLedCfg = OS_REG_READ(ah, AR_GPIOCR); 250 softLedState = OS_REG_READ(ah, AR_GPIODO); 251 252 if (!ar5211ChipReset(ah, chan)) { 253 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__); 254 FAIL(HAL_EIO); 255 } 256 257 /* Setup the indices for the next set of register array writes */ 258 if (IEEE80211_IS_CHAN_5GHZ(chan)) { 259 freqIndex = 1; 260 if (IEEE80211_IS_CHAN_TURBO(chan)) 261 modesIndex = 2; 262 else if (IEEE80211_IS_CHAN_A(chan)) 263 modesIndex = 1; 264 else { 265 HALDEBUG(ah, HAL_DEBUG_ANY, 266 "%s: invalid channel %u/0x%x\n", 267 __func__, chan->ic_freq, chan->ic_flags); 268 FAIL(HAL_EINVAL); 269 } 270 } else { 271 freqIndex = 2; 272 if (IEEE80211_IS_CHAN_B(chan)) 273 modesIndex = 3; 274 else if (IEEE80211_IS_CHAN_PUREG(chan)) 275 modesIndex = 4; 276 else { 277 HALDEBUG(ah, HAL_DEBUG_ANY, 278 "%s: invalid channel %u/0x%x\n", 279 __func__, chan->ic_freq, chan->ic_flags); 280 FAIL(HAL_EINVAL); 281 } 282 } 283 284 /* Set correct Baseband to analog shift setting to access analog chips. */ 285 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 286 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000007); 287 } else { 288 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000047); 289 } 290 291 /* Write parameters specific to AR5211 */ 292 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 293 if (IEEE80211_IS_CHAN_2GHZ(chan) && 294 AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3_1) { 295 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 296 uint32_t ob2GHz, db2GHz; 297 298 if (IEEE80211_IS_CHAN_CCK(chan)) { 299 ob2GHz = ee->ee_ob2GHz[0]; 300 db2GHz = ee->ee_db2GHz[0]; 301 } else { 302 ob2GHz = ee->ee_ob2GHz[1]; 303 db2GHz = ee->ee_db2GHz[1]; 304 } 305 ob2GHz = ath_hal_reverseBits(ob2GHz, 3); 306 db2GHz = ath_hal_reverseBits(db2GHz, 3); 307 ar5211Mode2_4[25][freqIndex] = 308 (ar5211Mode2_4[25][freqIndex] & ~0xC0) | 309 ((ob2GHz << 6) & 0xC0); 310 ar5211Mode2_4[26][freqIndex] = 311 (ar5211Mode2_4[26][freqIndex] & ~0x0F) | 312 (((ob2GHz >> 2) & 0x1) | 313 ((db2GHz << 1) & 0x0E)); 314 } 315 for (i = 0; i < N(ar5211Mode2_4); i++) 316 OS_REG_WRITE(ah, ar5211Mode2_4[i][0], 317 ar5211Mode2_4[i][freqIndex]); 318 } 319 320 /* Write the analog registers 6 and 7 before other config */ 321 ar5211SetRf6and7(ah, chan); 322 323 /* Write registers that vary across all modes */ 324 for (i = 0; i < N(ar5211Modes); i++) 325 OS_REG_WRITE(ah, ar5211Modes[i][0], ar5211Modes[i][modesIndex]); 326 327 /* Write RFGain Parameters that differ between 2.4 and 5 GHz */ 328 for (i = 0; i < N(ar5211BB_RfGain); i++) 329 OS_REG_WRITE(ah, ar5211BB_RfGain[i][0], ar5211BB_RfGain[i][freqIndex]); 330 331 /* Write Common Array Parameters */ 332 for (i = 0; i < N(ar5211Common); i++) { 333 uint32_t reg = ar5211Common[i][0]; 334 /* On channel change, don't reset the PCU registers */ 335 if (!(bChannelChange && (0x8000 <= reg && reg < 0x9000))) 336 OS_REG_WRITE(ah, reg, ar5211Common[i][1]); 337 } 338 339 /* Fix pre-AR5211 register values, this includes AR5311s. */ 340 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) { 341 /* 342 * The TX and RX latency values have changed locations 343 * within the USEC register in AR5211. Since they're 344 * set via the .ini, for both AR5211 and AR5311, they 345 * are written properly here for AR5311. 346 */ 347 data = OS_REG_READ(ah, AR_USEC); 348 /* Must be 0 for proper write in AR5311 */ 349 HALASSERT((data & 0x00700000) == 0); 350 OS_REG_WRITE(ah, AR_USEC, 351 (data & (AR_USEC_M | AR_USEC_32_M | AR5311_USEC_TX_LAT_M)) | 352 ((29 << AR5311_USEC_RX_LAT_S) & AR5311_USEC_RX_LAT_M)); 353 /* The following registers exist only on AR5311. */ 354 OS_REG_WRITE(ah, AR5311_QDCLKGATE, 0); 355 356 /* Set proper ADC & DAC delays for AR5311. */ 357 OS_REG_WRITE(ah, 0x00009878, 0x00000008); 358 359 /* Enable the PCU FIFO corruption ECO on AR5311. */ 360 OS_REG_WRITE(ah, AR_DIAG_SW, 361 OS_REG_READ(ah, AR_DIAG_SW) | AR5311_DIAG_SW_USE_ECO); 362 } 363 364 /* Restore certain DMA hardware registers on a channel change */ 365 if (bChannelChange) { 366 /* Restore TSF */ 367 OS_REG_WRITE(ah, AR_TSF_L32, saveTsfLow); 368 OS_REG_WRITE(ah, AR_TSF_U32, saveTsfHigh); 369 370 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 371 OS_REG_WRITE(ah, AR_D0_SEQNUM, saveFrameSeqCount[0]); 372 } else { 373 for (i = 0; i < AR_NUM_DCU; i++) 374 OS_REG_WRITE(ah, AR_DSEQNUM(i), saveFrameSeqCount[i]); 375 } 376 } 377 378 OS_REG_WRITE(ah, AR_STA_ID0, LE_READ_4(ahp->ah_macaddr)); 379 OS_REG_WRITE(ah, AR_STA_ID1, LE_READ_2(ahp->ah_macaddr + 4) 380 | macStaId1 381 ); 382 ar5211SetOperatingMode(ah, opmode); 383 384 /* Restore previous led state */ 385 OS_REG_WRITE(ah, AR_PCICFG, OS_REG_READ(ah, AR_PCICFG) | ledstate); 386 OS_REG_WRITE(ah, AR_GPIOCR, softLedCfg); 387 OS_REG_WRITE(ah, AR_GPIODO, softLedState); 388 389 /* Restore previous antenna */ 390 OS_REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna); 391 392 OS_REG_WRITE(ah, AR_BSS_ID0, LE_READ_4(ahp->ah_bssid)); 393 OS_REG_WRITE(ah, AR_BSS_ID1, LE_READ_2(ahp->ah_bssid + 4)); 394 395 /* Restore bmiss rssi & count thresholds */ 396 OS_REG_WRITE(ah, AR_RSSI_THR, ahp->ah_rssiThr); 397 398 OS_REG_WRITE(ah, AR_ISR, ~0); /* cleared on write */ 399 400 /* 401 * for pre-Production Oahu only. 402 * Disable clock gating in all DMA blocks. Helps when using 403 * 11B and AES but results in higher power consumption. 404 */ 405 if (AH_PRIVATE(ah)->ah_macVersion == AR_SREV_VERSION_OAHU && 406 AH_PRIVATE(ah)->ah_macRev < AR_SREV_OAHU_PROD) { 407 OS_REG_WRITE(ah, AR_CFG, 408 OS_REG_READ(ah, AR_CFG) | AR_CFG_CLK_GATE_DIS); 409 } 410 411 /* Setup the transmit power values. */ 412 if (!ar5211SetTransmitPower(ah, chan)) { 413 HALDEBUG(ah, HAL_DEBUG_ANY, 414 "%s: error init'ing transmit power\n", __func__); 415 FAIL(HAL_EIO); 416 } 417 418 /* 419 * Configurable OFDM spoofing for 11n compatibility; used 420 * only when operating in station mode. 421 */ 422 if (opmode != HAL_M_HOSTAP && 423 (AH_PRIVATE(ah)->ah_11nCompat & HAL_DIAG_11N_SERVICES) != 0) { 424 /* NB: override the .ini setting */ 425 OS_REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, 426 AR_PHY_FRAME_CTL_ERR_SERV, 427 MS(AH_PRIVATE(ah)->ah_11nCompat, HAL_DIAG_11N_SERVICES)&1); 428 } 429 430 /* Setup board specific options for EEPROM version 3 */ 431 ar5211SetBoardValues(ah, chan); 432 433 if (!ar5211SetChannel(ah, chan)) { 434 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unable to set channel\n", 435 __func__); 436 FAIL(HAL_EIO); 437 } 438 439 /* Activate the PHY */ 440 if (AH_PRIVATE(ah)->ah_devid == AR5211_FPGA11B && 441 IEEE80211_IS_CHAN_2GHZ(chan)) 442 OS_REG_WRITE(ah, 0xd808, 0x502); /* required for FPGA */ 443 OS_REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); 444 445 /* 446 * Wait for the frequency synth to settle (synth goes on 447 * via AR_PHY_ACTIVE_EN). Read the phy active delay register. 448 * Value is in 100ns increments. 449 */ 450 data = OS_REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_M; 451 if (IEEE80211_IS_CHAN_CCK(chan)) { 452 synthDelay = (4 * data) / 22; 453 } else { 454 synthDelay = data / 10; 455 } 456 /* 457 * There is an issue if the AP starts the calibration before 458 * the baseband timeout completes. This could result in the 459 * rxclear false triggering. Add an extra delay to ensure this 460 * this does not happen. 461 */ 462 OS_DELAY(synthDelay + DELAY_BASE_ACTIVATE); 463 464 /* Calibrate the AGC and wait for completion. */ 465 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 466 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_CAL); 467 (void) ath_hal_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL, 0); 468 469 /* Perform noise floor and set status */ 470 if (!ar5211CalNoiseFloor(ah, chan)) { 471 if (!IEEE80211_IS_CHAN_CCK(chan)) 472 chan->ic_state |= IEEE80211_CHANSTATE_CWINT; 473 HALDEBUG(ah, HAL_DEBUG_ANY, 474 "%s: noise floor calibration failed\n", __func__); 475 FAIL(HAL_EIO); 476 } 477 478 /* Start IQ calibration w/ 2^(INIT_IQCAL_LOG_COUNT_MAX+1) samples */ 479 if (ahp->ah_calibrationTime != 0) { 480 OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4, 481 AR_PHY_TIMING_CTRL4_DO_IQCAL | (INIT_IQCAL_LOG_COUNT_MAX << AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX_S)); 482 ahp->ah_bIQCalibration = AH_TRUE; 483 } 484 485 /* set 1:1 QCU to DCU mapping for all queues */ 486 for (q = 0; q < AR_NUM_DCU; q++) 487 OS_REG_WRITE(ah, AR_DQCUMASK(q), 1<<q); 488 489 for (q = 0; q < HAL_NUM_TX_QUEUES; q++) 490 ar5211ResetTxQueue(ah, q); 491 492 /* Setup QCU0 transmit interrupt masks (TX_ERR, TX_OK, TX_DESC, TX_URN) */ 493 OS_REG_WRITE(ah, AR_IMR_S0, 494 (AR_IMR_S0_QCU_TXOK & AR_QCU_0) | 495 (AR_IMR_S0_QCU_TXDESC & (AR_QCU_0<<AR_IMR_S0_QCU_TXDESC_S))); 496 OS_REG_WRITE(ah, AR_IMR_S1, (AR_IMR_S1_QCU_TXERR & AR_QCU_0)); 497 OS_REG_WRITE(ah, AR_IMR_S2, (AR_IMR_S2_QCU_TXURN & AR_QCU_0)); 498 499 /* 500 * GBL_EIFS must always be written after writing 501 * to any QCUMASK register. 502 */ 503 OS_REG_WRITE(ah, AR_D_GBL_IFS_EIFS, OS_REG_READ(ah, AR_D_GBL_IFS_EIFS)); 504 505 /* Now set up the Interrupt Mask Register and save it for future use */ 506 OS_REG_WRITE(ah, AR_IMR, INIT_INTERRUPT_MASK); 507 ahp->ah_maskReg = INIT_INTERRUPT_MASK; 508 509 /* Enable bus error interrupts */ 510 OS_REG_WRITE(ah, AR_IMR_S2, OS_REG_READ(ah, AR_IMR_S2) | 511 AR_IMR_S2_MCABT | AR_IMR_S2_SSERR | AR_IMR_S2_DPERR); 512 513 /* Enable interrupts specific to AP */ 514 if (opmode == HAL_M_HOSTAP) { 515 OS_REG_WRITE(ah, AR_IMR, OS_REG_READ(ah, AR_IMR) | AR_IMR_MIB); 516 ahp->ah_maskReg |= AR_IMR_MIB; 517 } 518 519 if (AH_PRIVATE(ah)->ah_rfkillEnabled) 520 ar5211EnableRfKill(ah); 521 522 /* 523 * Writing to AR_BEACON will start timers. Hence it should 524 * be the last register to be written. Do not reset tsf, do 525 * not enable beacons at this point, but preserve other values 526 * like beaconInterval. 527 */ 528 OS_REG_WRITE(ah, AR_BEACON, 529 (OS_REG_READ(ah, AR_BEACON) &~ (AR_BEACON_EN | AR_BEACON_RESET_TSF))); 530 531 /* Restore user-specified slot time and timeouts */ 532 if (ahp->ah_sifstime != (u_int) -1) 533 ar5211SetSifsTime(ah, ahp->ah_sifstime); 534 if (ahp->ah_slottime != (u_int) -1) 535 ar5211SetSlotTime(ah, ahp->ah_slottime); 536 if (ahp->ah_acktimeout != (u_int) -1) 537 ar5211SetAckTimeout(ah, ahp->ah_acktimeout); 538 if (ahp->ah_ctstimeout != (u_int) -1) 539 ar5211SetCTSTimeout(ah, ahp->ah_ctstimeout); 540 if (AH_PRIVATE(ah)->ah_diagreg != 0) 541 OS_REG_WRITE(ah, AR_DIAG_SW, AH_PRIVATE(ah)->ah_diagreg); 542 543 AH_PRIVATE(ah)->ah_opmode = opmode; /* record operating mode */ 544 545 HALDEBUG(ah, HAL_DEBUG_RESET, "%s: done\n", __func__); 546 547 return AH_TRUE; 548 bad: 549 if (status != AH_NULL) 550 *status = ecode; 551 return AH_FALSE; 552 #undef FAIL 553 #undef N 554 } 555 556 /* 557 * Places the PHY and Radio chips into reset. A full reset 558 * must be called to leave this state. The PCI/MAC/PCU are 559 * not placed into reset as we must receive interrupt to 560 * re-enable the hardware. 561 */ 562 HAL_BOOL 563 ar5211PhyDisable(struct ath_hal *ah) 564 { 565 return ar5211SetResetReg(ah, AR_RC_BB); 566 } 567 568 /* 569 * Places all of hardware into reset 570 */ 571 HAL_BOOL 572 ar5211Disable(struct ath_hal *ah) 573 { 574 if (!ar5211SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) 575 return AH_FALSE; 576 /* 577 * Reset the HW - PCI must be reset after the rest of the 578 * device has been reset. 579 */ 580 if (!ar5211SetResetReg(ah, AR_RC_MAC | AR_RC_BB | AR_RC_PCI)) 581 return AH_FALSE; 582 OS_DELAY(2100); /* 8245 @ 96Mhz hangs with 2000us. */ 583 584 return AH_TRUE; 585 } 586 587 /* 588 * Places the hardware into reset and then pulls it out of reset 589 * 590 * Only write the PLL if we're changing to or from CCK mode 591 * 592 * Attach calls with channelFlags = 0, as the coldreset should have 593 * us in the correct mode and we cannot check the hwchannel flags. 594 */ 595 HAL_BOOL 596 ar5211ChipReset(struct ath_hal *ah, const struct ieee80211_channel *chan) 597 { 598 if (!ar5211SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) 599 return AH_FALSE; 600 601 /* NB: called from attach with chan null */ 602 if (chan != AH_NULL) { 603 /* Set CCK and Turbo modes correctly */ 604 OS_REG_WRITE(ah, AR_PHY_TURBO, IEEE80211_IS_CHAN_TURBO(chan) ? 605 AR_PHY_FC_TURBO_MODE | AR_PHY_FC_TURBO_SHORT : 0); 606 if (IEEE80211_IS_CHAN_B(chan)) { 607 OS_REG_WRITE(ah, AR5211_PHY_MODE, 608 AR5211_PHY_MODE_CCK | AR5211_PHY_MODE_RF2GHZ); 609 OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_44); 610 /* Wait for the PLL to settle */ 611 OS_DELAY(DELAY_PLL_SETTLE); 612 } else if (AH_PRIVATE(ah)->ah_devid == AR5211_DEVID) { 613 OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_40); 614 OS_DELAY(DELAY_PLL_SETTLE); 615 OS_REG_WRITE(ah, AR5211_PHY_MODE, 616 AR5211_PHY_MODE_OFDM | (IEEE80211_IS_CHAN_2GHZ(chan) ? 617 AR5211_PHY_MODE_RF2GHZ : 618 AR5211_PHY_MODE_RF5GHZ)); 619 } 620 } 621 622 /* 623 * Reset the HW - PCI must be reset after the rest of the 624 * device has been reset 625 */ 626 if (!ar5211SetResetReg(ah, AR_RC_MAC | AR_RC_BB | AR_RC_PCI)) 627 return AH_FALSE; 628 OS_DELAY(2100); /* 8245 @ 96Mhz hangs with 2000us. */ 629 630 /* Bring out of sleep mode (AGAIN) */ 631 if (!ar5211SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) 632 return AH_FALSE; 633 634 /* Clear warm reset register */ 635 return ar5211SetResetReg(ah, 0); 636 } 637 638 /* 639 * Recalibrate the lower PHY chips to account for temperature/environment 640 * changes. 641 */ 642 HAL_BOOL 643 ar5211PerCalibrationN(struct ath_hal *ah, struct ieee80211_channel *chan, 644 u_int chainMask, HAL_BOOL longCal, HAL_BOOL *isCalDone) 645 { 646 struct ath_hal_5211 *ahp = AH5211(ah); 647 HAL_CHANNEL_INTERNAL *ichan; 648 int32_t qCoff, qCoffDenom; 649 uint32_t data; 650 int32_t iqCorrMeas; 651 int32_t iCoff, iCoffDenom; 652 uint32_t powerMeasQ, powerMeasI; 653 654 ichan = ath_hal_checkchannel(ah, chan); 655 if (ichan == AH_NULL) { 656 HALDEBUG(ah, HAL_DEBUG_ANY, 657 "%s: invalid channel %u/0x%x; no mapping\n", 658 __func__, chan->ic_freq, chan->ic_flags); 659 return AH_FALSE; 660 } 661 /* IQ calibration in progress. Check to see if it has finished. */ 662 if (ahp->ah_bIQCalibration && 663 !(OS_REG_READ(ah, AR_PHY_TIMING_CTRL4) & AR_PHY_TIMING_CTRL4_DO_IQCAL)) { 664 /* IQ Calibration has finished. */ 665 ahp->ah_bIQCalibration = AH_FALSE; 666 667 /* Read calibration results. */ 668 powerMeasI = OS_REG_READ(ah, AR_PHY_IQCAL_RES_PWR_MEAS_I); 669 powerMeasQ = OS_REG_READ(ah, AR_PHY_IQCAL_RES_PWR_MEAS_Q); 670 iqCorrMeas = OS_REG_READ(ah, AR_PHY_IQCAL_RES_IQ_CORR_MEAS); 671 672 /* 673 * Prescale these values to remove 64-bit operation requirement at the loss 674 * of a little precision. 675 */ 676 iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 128; 677 qCoffDenom = powerMeasQ / 64; 678 679 /* Protect against divide-by-0. */ 680 if (iCoffDenom != 0 && qCoffDenom != 0) { 681 iCoff = (-iqCorrMeas) / iCoffDenom; 682 /* IQCORR_Q_I_COFF is a signed 6 bit number */ 683 iCoff = iCoff & 0x3f; 684 685 qCoff = ((int32_t)powerMeasI / qCoffDenom) - 64; 686 /* IQCORR_Q_Q_COFF is a signed 5 bit number */ 687 qCoff = qCoff & 0x1f; 688 689 HALDEBUG(ah, HAL_DEBUG_PERCAL, "powerMeasI = 0x%08x\n", 690 powerMeasI); 691 HALDEBUG(ah, HAL_DEBUG_PERCAL, "powerMeasQ = 0x%08x\n", 692 powerMeasQ); 693 HALDEBUG(ah, HAL_DEBUG_PERCAL, "iqCorrMeas = 0x%08x\n", 694 iqCorrMeas); 695 HALDEBUG(ah, HAL_DEBUG_PERCAL, "iCoff = %d\n", 696 iCoff); 697 HALDEBUG(ah, HAL_DEBUG_PERCAL, "qCoff = %d\n", 698 qCoff); 699 700 /* Write IQ */ 701 data = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4) | 702 AR_PHY_TIMING_CTRL4_IQCORR_ENABLE | 703 (((uint32_t)iCoff) << AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF_S) | 704 ((uint32_t)qCoff); 705 OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4, data); 706 } 707 } 708 *isCalDone = !ahp->ah_bIQCalibration; 709 710 if (longCal) { 711 /* Perform noise floor and set status */ 712 if (!ar5211IsNfGood(ah, chan)) { 713 /* report up and clear internal state */ 714 chan->ic_state |= IEEE80211_CHANSTATE_CWINT; 715 return AH_FALSE; 716 } 717 if (!ar5211CalNoiseFloor(ah, chan)) { 718 /* 719 * Delay 5ms before retrying the noise floor 720 * just to make sure, as we are in an error 721 * condition here. 722 */ 723 OS_DELAY(5000); 724 if (!ar5211CalNoiseFloor(ah, chan)) { 725 if (!IEEE80211_IS_CHAN_CCK(chan)) 726 chan->ic_state |= IEEE80211_CHANSTATE_CWINT; 727 return AH_FALSE; 728 } 729 } 730 ar5211RequestRfgain(ah); 731 } 732 return AH_TRUE; 733 } 734 735 HAL_BOOL 736 ar5211PerCalibration(struct ath_hal *ah, struct ieee80211_channel *chan, 737 HAL_BOOL *isIQdone) 738 { 739 return ar5211PerCalibrationN(ah, chan, 0x1, AH_TRUE, isIQdone); 740 } 741 742 HAL_BOOL 743 ar5211ResetCalValid(struct ath_hal *ah, const struct ieee80211_channel *chan) 744 { 745 /* XXX */ 746 return AH_TRUE; 747 } 748 749 /* 750 * Writes the given reset bit mask into the reset register 751 */ 752 static HAL_BOOL 753 ar5211SetResetReg(struct ath_hal *ah, uint32_t resetMask) 754 { 755 uint32_t mask = resetMask ? resetMask : ~0; 756 HAL_BOOL rt; 757 758 (void) OS_REG_READ(ah, AR_RXDP);/* flush any pending MMR writes */ 759 OS_REG_WRITE(ah, AR_RC, resetMask); 760 761 /* need to wait at least 128 clocks when reseting PCI before read */ 762 OS_DELAY(15); 763 764 resetMask &= AR_RC_MAC | AR_RC_BB; 765 mask &= AR_RC_MAC | AR_RC_BB; 766 rt = ath_hal_wait(ah, AR_RC, mask, resetMask); 767 if ((resetMask & AR_RC_MAC) == 0) { 768 if (isBigEndian()) { 769 /* 770 * Set CFG, little-endian for descriptor accesses. 771 */ 772 mask = INIT_CONFIG_STATUS | AR_CFG_SWTD | AR_CFG_SWRD; 773 OS_REG_WRITE(ah, AR_CFG, mask); 774 } else 775 OS_REG_WRITE(ah, AR_CFG, INIT_CONFIG_STATUS); 776 } 777 return rt; 778 } 779 780 /* 781 * Takes the MHz channel value and sets the Channel value 782 * 783 * ASSUMES: Writes enabled to analog bus before AGC is active 784 * or by disabling the AGC. 785 */ 786 static HAL_BOOL 787 ar5211SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan) 788 { 789 uint32_t refClk, reg32, data2111; 790 int16_t chan5111, chanIEEE; 791 792 chanIEEE = chan->ic_ieee; 793 if (IEEE80211_IS_CHAN_2GHZ(chan)) { 794 const CHAN_INFO_2GHZ* ci = 795 &chan2GHzData[chanIEEE + CI_2GHZ_INDEX_CORRECTION]; 796 797 data2111 = ((ath_hal_reverseBits(ci->channelSelect, 8) & 0xff) 798 << 5) 799 | (ci->refClkSel << 4); 800 chan5111 = ci->channel5111; 801 } else { 802 data2111 = 0; 803 chan5111 = chanIEEE; 804 } 805 806 /* Rest of the code is common for 5 GHz and 2.4 GHz. */ 807 if (chan5111 >= 145 || (chan5111 & 0x1)) { 808 reg32 = ath_hal_reverseBits(chan5111 - 24, 8) & 0xFF; 809 refClk = 1; 810 } else { 811 reg32 = ath_hal_reverseBits(((chan5111 - 24) / 2), 8) & 0xFF; 812 refClk = 0; 813 } 814 815 reg32 = (reg32 << 2) | (refClk << 1) | (1 << 10) | 0x1; 816 OS_REG_WRITE(ah, AR_PHY(0x27), ((data2111 & 0xff) << 8) | (reg32 & 0xff)); 817 reg32 >>= 8; 818 OS_REG_WRITE(ah, AR_PHY(0x34), (data2111 & 0xff00) | (reg32 & 0xff)); 819 820 AH_PRIVATE(ah)->ah_curchan = chan; 821 return AH_TRUE; 822 } 823 824 static int16_t 825 ar5211GetNoiseFloor(struct ath_hal *ah) 826 { 827 int16_t nf; 828 829 nf = (OS_REG_READ(ah, AR_PHY(25)) >> 19) & 0x1ff; 830 if (nf & 0x100) 831 nf = 0 - ((nf ^ 0x1ff) + 1); 832 return nf; 833 } 834 835 /* 836 * Peform the noisefloor calibration for the length of time set 837 * in runTime (valid values 1 to 7) 838 * 839 * Returns: The NF value at the end of the given time (or 0 for failure) 840 */ 841 int16_t 842 ar5211RunNoiseFloor(struct ath_hal *ah, uint8_t runTime, int16_t startingNF) 843 { 844 int i, searchTime; 845 846 HALASSERT(runTime <= 7); 847 848 /* Setup noise floor run time and starting value */ 849 OS_REG_WRITE(ah, AR_PHY(25), 850 (OS_REG_READ(ah, AR_PHY(25)) & ~0xFFF) | 851 ((runTime << 9) & 0xE00) | (startingNF & 0x1FF)); 852 /* Calibrate the noise floor */ 853 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 854 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_NF); 855 856 /* Compute the required amount of searchTime needed to finish NF */ 857 if (runTime == 0) { 858 /* 8 search windows * 6.4us each */ 859 searchTime = 8 * 7; 860 } else { 861 /* 512 * runtime search windows * 6.4us each */ 862 searchTime = (runTime * 512) * 7; 863 } 864 865 /* 866 * Do not read noise floor until it has been updated 867 * 868 * As a guesstimate - we may only get 1/60th the time on 869 * the air to see search windows in a heavily congested 870 * network (40 us every 2400 us of time) 871 */ 872 for (i = 0; i < 60; i++) { 873 if ((OS_REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) == 0) 874 break; 875 OS_DELAY(searchTime); 876 } 877 if (i >= 60) { 878 HALDEBUG(ah, HAL_DEBUG_NFCAL, 879 "NF with runTime %d failed to end on channel %d\n", 880 runTime, AH_PRIVATE(ah)->ah_curchan->ic_freq); 881 HALDEBUG(ah, HAL_DEBUG_NFCAL, 882 " PHY NF Reg state: 0x%x\n", 883 OS_REG_READ(ah, AR_PHY_AGC_CONTROL)); 884 HALDEBUG(ah, HAL_DEBUG_NFCAL, 885 " PHY Active Reg state: 0x%x\n", 886 OS_REG_READ(ah, AR_PHY_ACTIVE)); 887 return 0; 888 } 889 890 return ar5211GetNoiseFloor(ah); 891 } 892 893 static HAL_BOOL 894 getNoiseFloorThresh(struct ath_hal *ah, const struct ieee80211_channel *chan, 895 int16_t *nft) 896 { 897 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 898 899 switch (chan->ic_flags & IEEE80211_CHAN_ALLFULL) { 900 case IEEE80211_CHAN_A: 901 *nft = ee->ee_noiseFloorThresh[0]; 902 break; 903 case IEEE80211_CHAN_B: 904 *nft = ee->ee_noiseFloorThresh[1]; 905 break; 906 case IEEE80211_CHAN_PUREG: 907 *nft = ee->ee_noiseFloorThresh[2]; 908 break; 909 default: 910 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 911 __func__, chan->ic_flags); 912 return AH_FALSE; 913 } 914 return AH_TRUE; 915 } 916 917 /* 918 * Read the NF and check it against the noise floor threshold 919 * 920 * Returns: TRUE if the NF is good 921 */ 922 static HAL_BOOL 923 ar5211IsNfGood(struct ath_hal *ah, struct ieee80211_channel *chan) 924 { 925 HAL_CHANNEL_INTERNAL *ichan = ath_hal_checkchannel(ah, chan); 926 int16_t nf, nfThresh; 927 928 if (!getNoiseFloorThresh(ah, chan, &nfThresh)) 929 return AH_FALSE; 930 if (OS_REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) { 931 HALDEBUG(ah, HAL_DEBUG_ANY, 932 "%s: NF did not complete in calibration window\n", __func__); 933 } 934 nf = ar5211GetNoiseFloor(ah); 935 if (nf > nfThresh) { 936 HALDEBUG(ah, HAL_DEBUG_ANY, 937 "%s: noise floor failed; detected %u, threshold %u\n", 938 __func__, nf, nfThresh); 939 /* 940 * NB: Don't discriminate 2.4 vs 5Ghz, if this 941 * happens it indicates a problem regardless 942 * of the band. 943 */ 944 chan->ic_state |= IEEE80211_CHANSTATE_CWINT; 945 } 946 ichan->rawNoiseFloor = nf; 947 return (nf <= nfThresh); 948 } 949 950 /* 951 * Peform the noisefloor calibration and check for any constant channel 952 * interference. 953 * 954 * NOTE: preAR5211 have a lengthy carrier wave detection process - hence 955 * it is if'ed for MKK regulatory domain only. 956 * 957 * Returns: TRUE for a successful noise floor calibration; else FALSE 958 */ 959 HAL_BOOL 960 ar5211CalNoiseFloor(struct ath_hal *ah, const struct ieee80211_channel *chan) 961 { 962 #define N(a) (sizeof (a) / sizeof (a[0])) 963 /* Check for Carrier Wave interference in MKK regulatory zone */ 964 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU && 965 (chan->ic_flags & CHANNEL_NFCREQUIRED)) { 966 static const uint8_t runtime[3] = { 0, 2, 7 }; 967 HAL_CHANNEL_INTERNAL *ichan = ath_hal_checkchannel(ah, chan); 968 int16_t nf, nfThresh; 969 int i; 970 971 if (!getNoiseFloorThresh(ah, chan, &nfThresh)) 972 return AH_FALSE; 973 /* 974 * Run a quick noise floor that will hopefully 975 * complete (decrease delay time). 976 */ 977 for (i = 0; i < N(runtime); i++) { 978 nf = ar5211RunNoiseFloor(ah, runtime[i], 0); 979 if (nf > nfThresh) { 980 HALDEBUG(ah, HAL_DEBUG_ANY, 981 "%s: run failed with %u > threshold %u " 982 "(runtime %u)\n", __func__, 983 nf, nfThresh, runtime[i]); 984 ichan->rawNoiseFloor = 0; 985 } else 986 ichan->rawNoiseFloor = nf; 987 } 988 return (i <= N(runtime)); 989 } else { 990 /* Calibrate the noise floor */ 991 OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL, 992 OS_REG_READ(ah, AR_PHY_AGC_CONTROL) | 993 AR_PHY_AGC_CONTROL_NF); 994 } 995 return AH_TRUE; 996 #undef N 997 } 998 999 /* 1000 * Adjust NF based on statistical values for 5GHz frequencies. 1001 */ 1002 int16_t 1003 ar5211GetNfAdjust(struct ath_hal *ah, const HAL_CHANNEL_INTERNAL *c) 1004 { 1005 static const struct { 1006 uint16_t freqLow; 1007 int16_t adjust; 1008 } adjust5111[] = { 1009 { 5790, 11 }, /* NB: ordered high -> low */ 1010 { 5730, 10 }, 1011 { 5690, 9 }, 1012 { 5660, 8 }, 1013 { 5610, 7 }, 1014 { 5530, 5 }, 1015 { 5450, 4 }, 1016 { 5379, 2 }, 1017 { 5209, 0 }, /* XXX? bogus but doesn't matter */ 1018 { 0, 1 }, 1019 }; 1020 int i; 1021 1022 for (i = 0; c->channel <= adjust5111[i].freqLow; i++) 1023 ; 1024 /* NB: placeholder for 5111's less severe requirement */ 1025 return adjust5111[i].adjust / 3; 1026 } 1027 1028 /* 1029 * Reads EEPROM header info from device structure and programs 1030 * analog registers 6 and 7 1031 * 1032 * REQUIRES: Access to the analog device 1033 */ 1034 static HAL_BOOL 1035 ar5211SetRf6and7(struct ath_hal *ah, const struct ieee80211_channel *chan) 1036 { 1037 #define N(a) (sizeof (a) / sizeof (a[0])) 1038 uint16_t freq = ath_hal_gethwchannel(ah, chan); 1039 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1040 struct ath_hal_5211 *ahp = AH5211(ah); 1041 uint16_t rfXpdGain, rfPloSel, rfPwdXpd; 1042 uint16_t tempOB, tempDB; 1043 uint16_t freqIndex; 1044 int i; 1045 1046 freqIndex = IEEE80211_IS_CHAN_2GHZ(chan) ? 2 : 1; 1047 1048 /* 1049 * TODO: This array mode correspondes with the index used 1050 * during the read. 1051 * For readability, this should be changed to an enum or #define 1052 */ 1053 switch (chan->ic_flags & IEEE80211_CHAN_ALLFULL) { 1054 case IEEE80211_CHAN_A: 1055 if (freq > 4000 && freq < 5260) { 1056 tempOB = ee->ee_ob1; 1057 tempDB = ee->ee_db1; 1058 } else if (freq >= 5260 && freq < 5500) { 1059 tempOB = ee->ee_ob2; 1060 tempDB = ee->ee_db2; 1061 } else if (freq >= 5500 && freq < 5725) { 1062 tempOB = ee->ee_ob3; 1063 tempDB = ee->ee_db3; 1064 } else if (freq >= 5725) { 1065 tempOB = ee->ee_ob4; 1066 tempDB = ee->ee_db4; 1067 } else { 1068 /* XXX panic?? */ 1069 tempOB = tempDB = 0; 1070 } 1071 1072 rfXpdGain = ee->ee_xgain[0]; 1073 rfPloSel = ee->ee_xpd[0]; 1074 rfPwdXpd = !ee->ee_xpd[0]; 1075 1076 ar5211Rf6n7[5][freqIndex] = 1077 (ar5211Rf6n7[5][freqIndex] & ~0x10000000) | 1078 (ee->ee_cornerCal.pd84<< 28); 1079 ar5211Rf6n7[6][freqIndex] = 1080 (ar5211Rf6n7[6][freqIndex] & ~0x04000000) | 1081 (ee->ee_cornerCal.pd90 << 26); 1082 ar5211Rf6n7[21][freqIndex] = 1083 (ar5211Rf6n7[21][freqIndex] & ~0x08) | 1084 (ee->ee_cornerCal.gSel << 3); 1085 break; 1086 case IEEE80211_CHAN_B: 1087 tempOB = ee->ee_obFor24; 1088 tempDB = ee->ee_dbFor24; 1089 rfXpdGain = ee->ee_xgain[1]; 1090 rfPloSel = ee->ee_xpd[1]; 1091 rfPwdXpd = !ee->ee_xpd[1]; 1092 break; 1093 case IEEE80211_CHAN_PUREG: 1094 tempOB = ee->ee_obFor24g; 1095 tempDB = ee->ee_dbFor24g; 1096 rfXpdGain = ee->ee_xgain[2]; 1097 rfPloSel = ee->ee_xpd[2]; 1098 rfPwdXpd = !ee->ee_xpd[2]; 1099 break; 1100 default: 1101 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1102 __func__, chan->ic_flags); 1103 return AH_FALSE; 1104 } 1105 1106 HALASSERT(1 <= tempOB && tempOB <= 5); 1107 HALASSERT(1 <= tempDB && tempDB <= 5); 1108 1109 /* Set rfXpdGain and rfPwdXpd */ 1110 ar5211Rf6n7[11][freqIndex] = (ar5211Rf6n7[11][freqIndex] & ~0xC0) | 1111 (((ath_hal_reverseBits(rfXpdGain, 4) << 7) | (rfPwdXpd << 6)) & 0xC0); 1112 ar5211Rf6n7[12][freqIndex] = (ar5211Rf6n7[12][freqIndex] & ~0x07) | 1113 ((ath_hal_reverseBits(rfXpdGain, 4) >> 1) & 0x07); 1114 1115 /* Set OB */ 1116 ar5211Rf6n7[12][freqIndex] = (ar5211Rf6n7[12][freqIndex] & ~0x80) | 1117 ((ath_hal_reverseBits(tempOB, 3) << 7) & 0x80); 1118 ar5211Rf6n7[13][freqIndex] = (ar5211Rf6n7[13][freqIndex] & ~0x03) | 1119 ((ath_hal_reverseBits(tempOB, 3) >> 1) & 0x03); 1120 1121 /* Set DB */ 1122 ar5211Rf6n7[13][freqIndex] = (ar5211Rf6n7[13][freqIndex] & ~0x1C) | 1123 ((ath_hal_reverseBits(tempDB, 3) << 2) & 0x1C); 1124 1125 /* Set rfPloSel */ 1126 ar5211Rf6n7[17][freqIndex] = (ar5211Rf6n7[17][freqIndex] & ~0x08) | 1127 ((rfPloSel << 3) & 0x08); 1128 1129 /* Write the Rf registers 6 & 7 */ 1130 for (i = 0; i < N(ar5211Rf6n7); i++) 1131 OS_REG_WRITE(ah, ar5211Rf6n7[i][0], ar5211Rf6n7[i][freqIndex]); 1132 1133 /* Now that we have reprogrammed rfgain value, clear the flag. */ 1134 ahp->ah_rfgainState = RFGAIN_INACTIVE; 1135 1136 return AH_TRUE; 1137 #undef N 1138 } 1139 1140 HAL_BOOL 1141 ar5211SetAntennaSwitchInternal(struct ath_hal *ah, HAL_ANT_SETTING settings, 1142 const struct ieee80211_channel *chan) 1143 { 1144 #define ANT_SWITCH_TABLE1 0x9960 1145 #define ANT_SWITCH_TABLE2 0x9964 1146 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1147 struct ath_hal_5211 *ahp = AH5211(ah); 1148 uint32_t antSwitchA, antSwitchB; 1149 int ix; 1150 1151 switch (chan->ic_flags & IEEE80211_CHAN_ALLFULL) { 1152 case IEEE80211_CHAN_A: ix = 0; break; 1153 case IEEE80211_CHAN_B: ix = 1; break; 1154 case IEEE80211_CHAN_PUREG: ix = 2; break; 1155 default: 1156 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1157 __func__, chan->ic_flags); 1158 return AH_FALSE; 1159 } 1160 1161 antSwitchA = ee->ee_antennaControl[1][ix] 1162 | (ee->ee_antennaControl[2][ix] << 6) 1163 | (ee->ee_antennaControl[3][ix] << 12) 1164 | (ee->ee_antennaControl[4][ix] << 18) 1165 | (ee->ee_antennaControl[5][ix] << 24) 1166 ; 1167 antSwitchB = ee->ee_antennaControl[6][ix] 1168 | (ee->ee_antennaControl[7][ix] << 6) 1169 | (ee->ee_antennaControl[8][ix] << 12) 1170 | (ee->ee_antennaControl[9][ix] << 18) 1171 | (ee->ee_antennaControl[10][ix] << 24) 1172 ; 1173 /* 1174 * For fixed antenna, give the same setting for both switch banks 1175 */ 1176 switch (settings) { 1177 case HAL_ANT_FIXED_A: 1178 antSwitchB = antSwitchA; 1179 break; 1180 case HAL_ANT_FIXED_B: 1181 antSwitchA = antSwitchB; 1182 break; 1183 case HAL_ANT_VARIABLE: 1184 break; 1185 default: 1186 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad antenna setting %u\n", 1187 __func__, settings); 1188 return AH_FALSE; 1189 } 1190 ahp->ah_diversityControl = settings; 1191 1192 OS_REG_WRITE(ah, ANT_SWITCH_TABLE1, antSwitchA); 1193 OS_REG_WRITE(ah, ANT_SWITCH_TABLE2, antSwitchB); 1194 1195 return AH_TRUE; 1196 #undef ANT_SWITCH_TABLE1 1197 #undef ANT_SWITCH_TABLE2 1198 } 1199 1200 /* 1201 * Reads EEPROM header info and programs the device for correct operation 1202 * given the channel value 1203 */ 1204 static HAL_BOOL 1205 ar5211SetBoardValues(struct ath_hal *ah, const struct ieee80211_channel *chan) 1206 { 1207 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1208 struct ath_hal_5211 *ahp = AH5211(ah); 1209 int arrayMode, falseDectectBackoff; 1210 1211 switch (chan->ic_flags & IEEE80211_CHAN_ALLFULL) { 1212 case IEEE80211_CHAN_A: 1213 arrayMode = 0; 1214 OS_REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, 1215 AR_PHY_FRAME_CTL_TX_CLIP, ee->ee_cornerCal.clip); 1216 break; 1217 case IEEE80211_CHAN_B: 1218 arrayMode = 1; 1219 break; 1220 case IEEE80211_CHAN_PUREG: 1221 arrayMode = 2; 1222 break; 1223 default: 1224 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1225 __func__, chan->ic_flags); 1226 return AH_FALSE; 1227 } 1228 1229 /* Set the antenna register(s) correctly for the chip revision */ 1230 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) { 1231 OS_REG_WRITE(ah, AR_PHY(68), 1232 (OS_REG_READ(ah, AR_PHY(68)) & 0xFFFFFFFC) | 0x3); 1233 } else { 1234 OS_REG_WRITE(ah, AR_PHY(68), 1235 (OS_REG_READ(ah, AR_PHY(68)) & 0xFFFFFC06) | 1236 (ee->ee_antennaControl[0][arrayMode] << 4) | 0x1); 1237 1238 ar5211SetAntennaSwitchInternal(ah, 1239 ahp->ah_diversityControl, chan); 1240 1241 /* Set the Noise Floor Thresh on ar5211 devices */ 1242 OS_REG_WRITE(ah, AR_PHY_BASE + (90 << 2), 1243 (ee->ee_noiseFloorThresh[arrayMode] & 0x1FF) | (1<<9)); 1244 } 1245 OS_REG_WRITE(ah, AR_PHY_BASE + (17 << 2), 1246 (OS_REG_READ(ah, AR_PHY_BASE + (17 << 2)) & 0xFFFFC07F) | 1247 ((ee->ee_switchSettling[arrayMode] << 7) & 0x3F80)); 1248 OS_REG_WRITE(ah, AR_PHY_BASE + (18 << 2), 1249 (OS_REG_READ(ah, AR_PHY_BASE + (18 << 2)) & 0xFFFC0FFF) | 1250 ((ee->ee_txrxAtten[arrayMode] << 12) & 0x3F000)); 1251 OS_REG_WRITE(ah, AR_PHY_BASE + (20 << 2), 1252 (OS_REG_READ(ah, AR_PHY_BASE + (20 << 2)) & 0xFFFF0000) | 1253 ((ee->ee_pgaDesiredSize[arrayMode] << 8) & 0xFF00) | 1254 (ee->ee_adcDesiredSize[arrayMode] & 0x00FF)); 1255 OS_REG_WRITE(ah, AR_PHY_BASE + (13 << 2), 1256 (ee->ee_txEndToXPAOff[arrayMode] << 24) | 1257 (ee->ee_txEndToXPAOff[arrayMode] << 16) | 1258 (ee->ee_txFrameToXPAOn[arrayMode] << 8) | 1259 ee->ee_txFrameToXPAOn[arrayMode]); 1260 OS_REG_WRITE(ah, AR_PHY_BASE + (10 << 2), 1261 (OS_REG_READ(ah, AR_PHY_BASE + (10 << 2)) & 0xFFFF00FF) | 1262 (ee->ee_txEndToXLNAOn[arrayMode] << 8)); 1263 OS_REG_WRITE(ah, AR_PHY_BASE + (25 << 2), 1264 (OS_REG_READ(ah, AR_PHY_BASE + (25 << 2)) & 0xFFF80FFF) | 1265 ((ee->ee_thresh62[arrayMode] << 12) & 0x7F000)); 1266 1267 #define NO_FALSE_DETECT_BACKOFF 2 1268 #define CB22_FALSE_DETECT_BACKOFF 6 1269 /* 1270 * False detect backoff - suspected 32 MHz spur causes 1271 * false detects in OFDM, causing Tx Hangs. Decrease 1272 * weak signal sensitivity for this card. 1273 */ 1274 falseDectectBackoff = NO_FALSE_DETECT_BACKOFF; 1275 if (AH_PRIVATE(ah)->ah_eeversion < AR_EEPROM_VER3_3) { 1276 if (AH_PRIVATE(ah)->ah_subvendorid == 0x1022 && 1277 IEEE80211_IS_CHAN_OFDM(chan)) 1278 falseDectectBackoff += CB22_FALSE_DETECT_BACKOFF; 1279 } else { 1280 uint16_t freq = ath_hal_gethwchannel(ah, chan); 1281 uint32_t remainder = freq % 32; 1282 1283 if (remainder && (remainder < 10 || remainder > 22)) 1284 falseDectectBackoff += ee->ee_falseDetectBackoff[arrayMode]; 1285 } 1286 OS_REG_WRITE(ah, 0x9924, 1287 (OS_REG_READ(ah, 0x9924) & 0xFFFFFF01) 1288 | ((falseDectectBackoff << 1) & 0xF7)); 1289 1290 return AH_TRUE; 1291 #undef NO_FALSE_DETECT_BACKOFF 1292 #undef CB22_FALSE_DETECT_BACKOFF 1293 } 1294 1295 /* 1296 * Set the limit on the overall output power. Used for dynamic 1297 * transmit power control and the like. 1298 * 1299 * NOTE: The power is passed in is in units of 0.5 dBm. 1300 */ 1301 HAL_BOOL 1302 ar5211SetTxPowerLimit(struct ath_hal *ah, uint32_t limit) 1303 { 1304 1305 AH_PRIVATE(ah)->ah_powerLimit = AH_MIN(limit, MAX_RATE_POWER); 1306 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE_MAX, limit); 1307 return AH_TRUE; 1308 } 1309 1310 /* 1311 * Sets the transmit power in the baseband for the given 1312 * operating channel and mode. 1313 */ 1314 static HAL_BOOL 1315 ar5211SetTransmitPower(struct ath_hal *ah, const struct ieee80211_channel *chan) 1316 { 1317 uint16_t freq = ath_hal_gethwchannel(ah, chan); 1318 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1319 TRGT_POWER_INFO *pi; 1320 RD_EDGES_POWER *rep; 1321 PCDACS_EEPROM eepromPcdacs; 1322 u_int nchan, cfgCtl; 1323 int i; 1324 1325 /* setup the pcdac struct to point to the correct info, based on mode */ 1326 switch (chan->ic_flags & IEEE80211_CHAN_ALLFULL) { 1327 case IEEE80211_CHAN_A: 1328 eepromPcdacs.numChannels = ee->ee_numChannels11a; 1329 eepromPcdacs.pChannelList= ee->ee_channels11a; 1330 eepromPcdacs.pDataPerChannel = ee->ee_dataPerChannel11a; 1331 nchan = ee->ee_numTargetPwr_11a; 1332 pi = ee->ee_trgtPwr_11a; 1333 break; 1334 case IEEE80211_CHAN_PUREG: 1335 eepromPcdacs.numChannels = ee->ee_numChannels2_4; 1336 eepromPcdacs.pChannelList= ee->ee_channels11g; 1337 eepromPcdacs.pDataPerChannel = ee->ee_dataPerChannel11g; 1338 nchan = ee->ee_numTargetPwr_11g; 1339 pi = ee->ee_trgtPwr_11g; 1340 break; 1341 case IEEE80211_CHAN_B: 1342 eepromPcdacs.numChannels = ee->ee_numChannels2_4; 1343 eepromPcdacs.pChannelList= ee->ee_channels11b; 1344 eepromPcdacs.pDataPerChannel = ee->ee_dataPerChannel11b; 1345 nchan = ee->ee_numTargetPwr_11b; 1346 pi = ee->ee_trgtPwr_11b; 1347 break; 1348 default: 1349 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n", 1350 __func__, chan->ic_flags); 1351 return AH_FALSE; 1352 } 1353 1354 ar5211SetPowerTable(ah, &eepromPcdacs, freq); 1355 1356 rep = AH_NULL; 1357 /* Match CTL to EEPROM value */ 1358 cfgCtl = ath_hal_getctl(ah, chan); 1359 for (i = 0; i < ee->ee_numCtls; i++) 1360 if (ee->ee_ctl[i] != 0 && ee->ee_ctl[i] == cfgCtl) { 1361 rep = &ee->ee_rdEdgesPower[i * NUM_EDGES]; 1362 break; 1363 } 1364 ar5211SetRateTable(ah, rep, pi, nchan, chan); 1365 1366 return AH_TRUE; 1367 } 1368 1369 /* 1370 * Read the transmit power levels from the structures taken 1371 * from EEPROM. Interpolate read transmit power values for 1372 * this channel. Organize the transmit power values into a 1373 * table for writing into the hardware. 1374 */ 1375 void 1376 ar5211SetPowerTable(struct ath_hal *ah, PCDACS_EEPROM *pSrcStruct, 1377 uint16_t channel) 1378 { 1379 static FULL_PCDAC_STRUCT pcdacStruct; 1380 static uint16_t pcdacTable[PWR_TABLE_SIZE]; 1381 1382 uint16_t i, j; 1383 uint16_t *pPcdacValues; 1384 int16_t *pScaledUpDbm; 1385 int16_t minScaledPwr; 1386 int16_t maxScaledPwr; 1387 int16_t pwr; 1388 uint16_t pcdacMin = 0; 1389 uint16_t pcdacMax = 63; 1390 uint16_t pcdacTableIndex; 1391 uint16_t scaledPcdac; 1392 uint32_t addr; 1393 uint32_t temp32; 1394 1395 OS_MEMZERO(&pcdacStruct, sizeof(FULL_PCDAC_STRUCT)); 1396 OS_MEMZERO(pcdacTable, sizeof(uint16_t) * PWR_TABLE_SIZE); 1397 pPcdacValues = pcdacStruct.PcdacValues; 1398 pScaledUpDbm = pcdacStruct.PwrValues; 1399 1400 /* Initialize the pcdacs to dBM structs pcdacs to be 1 to 63 */ 1401 for (i = PCDAC_START, j = 0; i <= PCDAC_STOP; i+= PCDAC_STEP, j++) 1402 pPcdacValues[j] = i; 1403 1404 pcdacStruct.numPcdacValues = j; 1405 pcdacStruct.pcdacMin = PCDAC_START; 1406 pcdacStruct.pcdacMax = PCDAC_STOP; 1407 1408 /* Fill out the power values for this channel */ 1409 for (j = 0; j < pcdacStruct.numPcdacValues; j++ ) 1410 pScaledUpDbm[j] = ar5211GetScaledPower(channel, pPcdacValues[j], pSrcStruct); 1411 1412 /* Now scale the pcdac values to fit in the 64 entry power table */ 1413 minScaledPwr = pScaledUpDbm[0]; 1414 maxScaledPwr = pScaledUpDbm[pcdacStruct.numPcdacValues - 1]; 1415 1416 /* find minimum and make monotonic */ 1417 for (j = 0; j < pcdacStruct.numPcdacValues; j++) { 1418 if (minScaledPwr >= pScaledUpDbm[j]) { 1419 minScaledPwr = pScaledUpDbm[j]; 1420 pcdacMin = j; 1421 } 1422 /* 1423 * Make the full_hsh monotonically increasing otherwise 1424 * interpolation algorithm will get fooled gotta start 1425 * working from the top, hence i = 63 - j. 1426 */ 1427 i = (uint16_t)(pcdacStruct.numPcdacValues - 1 - j); 1428 if (i == 0) 1429 break; 1430 if (pScaledUpDbm[i-1] > pScaledUpDbm[i]) { 1431 /* 1432 * It could be a glitch, so make the power for 1433 * this pcdac the same as the power from the 1434 * next highest pcdac. 1435 */ 1436 pScaledUpDbm[i - 1] = pScaledUpDbm[i]; 1437 } 1438 } 1439 1440 for (j = 0; j < pcdacStruct.numPcdacValues; j++) 1441 if (maxScaledPwr < pScaledUpDbm[j]) { 1442 maxScaledPwr = pScaledUpDbm[j]; 1443 pcdacMax = j; 1444 } 1445 1446 /* Find the first power level with a pcdac */ 1447 pwr = (uint16_t)(PWR_STEP * ((minScaledPwr - PWR_MIN + PWR_STEP / 2) / PWR_STEP) + PWR_MIN); 1448 1449 /* Write all the first pcdac entries based off the pcdacMin */ 1450 pcdacTableIndex = 0; 1451 for (i = 0; i < (2 * (pwr - PWR_MIN) / EEP_SCALE + 1); i++) 1452 pcdacTable[pcdacTableIndex++] = pcdacMin; 1453 1454 i = 0; 1455 while (pwr < pScaledUpDbm[pcdacStruct.numPcdacValues - 1]) { 1456 pwr += PWR_STEP; 1457 /* stop if dbM > max_power_possible */ 1458 while (pwr < pScaledUpDbm[pcdacStruct.numPcdacValues - 1] && 1459 (pwr - pScaledUpDbm[i])*(pwr - pScaledUpDbm[i+1]) > 0) 1460 i++; 1461 /* scale by 2 and add 1 to enable round up or down as needed */ 1462 scaledPcdac = (uint16_t)(ar5211GetInterpolatedValue(pwr, 1463 pScaledUpDbm[i], pScaledUpDbm[i+1], 1464 (uint16_t)(pPcdacValues[i] * 2), 1465 (uint16_t)(pPcdacValues[i+1] * 2), 0) + 1); 1466 1467 pcdacTable[pcdacTableIndex] = scaledPcdac / 2; 1468 if (pcdacTable[pcdacTableIndex] > pcdacMax) 1469 pcdacTable[pcdacTableIndex] = pcdacMax; 1470 pcdacTableIndex++; 1471 } 1472 1473 /* Write all the last pcdac entries based off the last valid pcdac */ 1474 while (pcdacTableIndex < PWR_TABLE_SIZE) { 1475 pcdacTable[pcdacTableIndex] = pcdacTable[pcdacTableIndex - 1]; 1476 pcdacTableIndex++; 1477 } 1478 1479 /* Finally, write the power values into the baseband power table */ 1480 addr = AR_PHY_BASE + (608 << 2); 1481 for (i = 0; i < 32; i++) { 1482 temp32 = 0xffff & ((pcdacTable[2 * i + 1] << 8) | 0xff); 1483 temp32 = (temp32 << 16) | (0xffff & ((pcdacTable[2 * i] << 8) | 0xff)); 1484 OS_REG_WRITE(ah, addr, temp32); 1485 addr += 4; 1486 } 1487 1488 } 1489 1490 /* 1491 * Set the transmit power in the baseband for the given 1492 * operating channel and mode. 1493 */ 1494 static void 1495 ar5211SetRateTable(struct ath_hal *ah, RD_EDGES_POWER *pRdEdgesPower, 1496 TRGT_POWER_INFO *pPowerInfo, uint16_t numChannels, 1497 const struct ieee80211_channel *chan) 1498 { 1499 uint16_t freq = ath_hal_gethwchannel(ah, chan); 1500 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 1501 struct ath_hal_5211 *ahp = AH5211(ah); 1502 static uint16_t ratesArray[NUM_RATES]; 1503 static const uint16_t tpcScaleReductionTable[5] = 1504 { 0, 3, 6, 9, MAX_RATE_POWER }; 1505 1506 uint16_t *pRatesPower; 1507 uint16_t lowerChannel, lowerIndex=0, lowerPower=0; 1508 uint16_t upperChannel, upperIndex=0, upperPower=0; 1509 uint16_t twiceMaxEdgePower=63; 1510 uint16_t twicePower = 0; 1511 uint16_t i, numEdges; 1512 uint16_t tempChannelList[NUM_EDGES]; /* temp array for holding edge channels */ 1513 uint16_t twiceMaxRDPower; 1514 int16_t scaledPower = 0; /* for gcc -O2 */ 1515 uint16_t mask = 0x3f; 1516 HAL_BOOL paPreDEnable = 0; 1517 int8_t twiceAntennaGain, twiceAntennaReduction = 0; 1518 1519 pRatesPower = ratesArray; 1520 twiceMaxRDPower = chan->ic_maxregpower * 2; 1521 1522 if (IEEE80211_IS_CHAN_5GHZ(chan)) { 1523 twiceAntennaGain = ee->ee_antennaGainMax[0]; 1524 } else { 1525 twiceAntennaGain = ee->ee_antennaGainMax[1]; 1526 } 1527 1528 twiceAntennaReduction = ath_hal_getantennareduction(ah, chan, twiceAntennaGain); 1529 1530 if (pRdEdgesPower) { 1531 /* Get the edge power */ 1532 for (i = 0; i < NUM_EDGES; i++) { 1533 if (pRdEdgesPower[i].rdEdge == 0) 1534 break; 1535 tempChannelList[i] = pRdEdgesPower[i].rdEdge; 1536 } 1537 numEdges = i; 1538 1539 ar5211GetLowerUpperValues(freq, tempChannelList, 1540 numEdges, &lowerChannel, &upperChannel); 1541 /* Get the index for this channel */ 1542 for (i = 0; i < numEdges; i++) 1543 if (lowerChannel == tempChannelList[i]) 1544 break; 1545 HALASSERT(i != numEdges); 1546 1547 if ((lowerChannel == upperChannel && 1548 lowerChannel == freq) || 1549 pRdEdgesPower[i].flag) { 1550 twiceMaxEdgePower = pRdEdgesPower[i].twice_rdEdgePower; 1551 HALASSERT(twiceMaxEdgePower > 0); 1552 } 1553 } 1554 1555 /* extrapolate the power values for the test Groups */ 1556 for (i = 0; i < numChannels; i++) 1557 tempChannelList[i] = pPowerInfo[i].testChannel; 1558 1559 ar5211GetLowerUpperValues(freq, tempChannelList, 1560 numChannels, &lowerChannel, &upperChannel); 1561 1562 /* get the index for the channel */ 1563 for (i = 0; i < numChannels; i++) { 1564 if (lowerChannel == tempChannelList[i]) 1565 lowerIndex = i; 1566 if (upperChannel == tempChannelList[i]) { 1567 upperIndex = i; 1568 break; 1569 } 1570 } 1571 1572 for (i = 0; i < NUM_RATES; i++) { 1573 if (IEEE80211_IS_CHAN_OFDM(chan)) { 1574 /* power for rates 6,9,12,18,24 is all the same */ 1575 if (i < 5) { 1576 lowerPower = pPowerInfo[lowerIndex].twicePwr6_24; 1577 upperPower = pPowerInfo[upperIndex].twicePwr6_24; 1578 } else if (i == 5) { 1579 lowerPower = pPowerInfo[lowerIndex].twicePwr36; 1580 upperPower = pPowerInfo[upperIndex].twicePwr36; 1581 } else if (i == 6) { 1582 lowerPower = pPowerInfo[lowerIndex].twicePwr48; 1583 upperPower = pPowerInfo[upperIndex].twicePwr48; 1584 } else if (i == 7) { 1585 lowerPower = pPowerInfo[lowerIndex].twicePwr54; 1586 upperPower = pPowerInfo[upperIndex].twicePwr54; 1587 } 1588 } else { 1589 switch (i) { 1590 case 0: 1591 case 1: 1592 lowerPower = pPowerInfo[lowerIndex].twicePwr6_24; 1593 upperPower = pPowerInfo[upperIndex].twicePwr6_24; 1594 break; 1595 case 2: 1596 case 3: 1597 lowerPower = pPowerInfo[lowerIndex].twicePwr36; 1598 upperPower = pPowerInfo[upperIndex].twicePwr36; 1599 break; 1600 case 4: 1601 case 5: 1602 lowerPower = pPowerInfo[lowerIndex].twicePwr48; 1603 upperPower = pPowerInfo[upperIndex].twicePwr48; 1604 break; 1605 case 6: 1606 case 7: 1607 lowerPower = pPowerInfo[lowerIndex].twicePwr54; 1608 upperPower = pPowerInfo[upperIndex].twicePwr54; 1609 break; 1610 } 1611 } 1612 1613 twicePower = ar5211GetInterpolatedValue(freq, 1614 lowerChannel, upperChannel, lowerPower, upperPower, 0); 1615 1616 /* Reduce power by band edge restrictions */ 1617 twicePower = AH_MIN(twicePower, twiceMaxEdgePower); 1618 1619 /* 1620 * If turbo is set, reduce power to keep power 1621 * consumption under 2 Watts. Note that we always do 1622 * this unless specially configured. Then we limit 1623 * power only for non-AP operation. 1624 */ 1625 if (IEEE80211_IS_CHAN_TURBO(chan) && 1626 AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3_1 1627 #ifdef AH_ENABLE_AP_SUPPORT 1628 && AH_PRIVATE(ah)->ah_opmode != HAL_M_HOSTAP 1629 #endif 1630 ) { 1631 twicePower = AH_MIN(twicePower, ee->ee_turbo2WMaxPower5); 1632 } 1633 1634 /* Reduce power by max regulatory domain allowed restrictions */ 1635 pRatesPower[i] = AH_MIN(twicePower, twiceMaxRDPower - twiceAntennaReduction); 1636 1637 /* Use 6 Mb power level for transmit power scaling reduction */ 1638 /* We don't want to reduce higher rates if its not needed */ 1639 if (i == 0) { 1640 scaledPower = pRatesPower[0] - 1641 (tpcScaleReductionTable[AH_PRIVATE(ah)->ah_tpScale] * 2); 1642 if (scaledPower < 1) 1643 scaledPower = 1; 1644 } 1645 1646 pRatesPower[i] = AH_MIN(pRatesPower[i], scaledPower); 1647 } 1648 1649 /* Record txPower at Rate 6 for info gathering */ 1650 ahp->ah_tx6PowerInHalfDbm = pRatesPower[0]; 1651 1652 #ifdef AH_DEBUG 1653 HALDEBUG(ah, HAL_DEBUG_RESET, 1654 "%s: final output power setting %d MHz:\n", 1655 __func__, chan->ic_freq); 1656 HALDEBUG(ah, HAL_DEBUG_RESET, 1657 "6 Mb %d dBm, MaxRD: %d dBm, MaxEdge %d dBm\n", 1658 scaledPower / 2, twiceMaxRDPower / 2, twiceMaxEdgePower / 2); 1659 HALDEBUG(ah, HAL_DEBUG_RESET, "TPC Scale %d dBm - Ant Red %d dBm\n", 1660 tpcScaleReductionTable[AH_PRIVATE(ah)->ah_tpScale] * 2, 1661 twiceAntennaReduction / 2); 1662 if (IEEE80211_IS_CHAN_TURBO(chan) && 1663 AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER3_1) 1664 HALDEBUG(ah, HAL_DEBUG_RESET, "Max Turbo %d dBm\n", 1665 ee->ee_turbo2WMaxPower5); 1666 HALDEBUG(ah, HAL_DEBUG_RESET, 1667 " %2d | %2d | %2d | %2d | %2d | %2d | %2d | %2d dBm\n", 1668 pRatesPower[0] / 2, pRatesPower[1] / 2, pRatesPower[2] / 2, 1669 pRatesPower[3] / 2, pRatesPower[4] / 2, pRatesPower[5] / 2, 1670 pRatesPower[6] / 2, pRatesPower[7] / 2); 1671 #endif /* AH_DEBUG */ 1672 1673 /* Write the power table into the hardware */ 1674 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE1, 1675 ((paPreDEnable & 1)<< 30) | ((pRatesPower[3] & mask) << 24) | 1676 ((paPreDEnable & 1)<< 22) | ((pRatesPower[2] & mask) << 16) | 1677 ((paPreDEnable & 1)<< 14) | ((pRatesPower[1] & mask) << 8) | 1678 ((paPreDEnable & 1)<< 6 ) | (pRatesPower[0] & mask)); 1679 OS_REG_WRITE(ah, AR_PHY_POWER_TX_RATE2, 1680 ((paPreDEnable & 1)<< 30) | ((pRatesPower[7] & mask) << 24) | 1681 ((paPreDEnable & 1)<< 22) | ((pRatesPower[6] & mask) << 16) | 1682 ((paPreDEnable & 1)<< 14) | ((pRatesPower[5] & mask) << 8) | 1683 ((paPreDEnable & 1)<< 6 ) | (pRatesPower[4] & mask)); 1684 1685 /* set max power to the power value at rate 6 */ 1686 ar5211SetTxPowerLimit(ah, pRatesPower[0]); 1687 1688 AH_PRIVATE(ah)->ah_maxPowerLevel = pRatesPower[0]; 1689 } 1690 1691 /* 1692 * Get or interpolate the pcdac value from the calibrated data 1693 */ 1694 uint16_t 1695 ar5211GetScaledPower(uint16_t channel, uint16_t pcdacValue, 1696 const PCDACS_EEPROM *pSrcStruct) 1697 { 1698 uint16_t powerValue; 1699 uint16_t lFreq, rFreq; /* left and right frequency values */ 1700 uint16_t llPcdac, ulPcdac; /* lower and upper left pcdac values */ 1701 uint16_t lrPcdac, urPcdac; /* lower and upper right pcdac values */ 1702 uint16_t lPwr, uPwr; /* lower and upper temp pwr values */ 1703 uint16_t lScaledPwr, rScaledPwr; /* left and right scaled power */ 1704 1705 if (ar5211FindValueInList(channel, pcdacValue, pSrcStruct, &powerValue)) 1706 /* value was copied from srcStruct */ 1707 return powerValue; 1708 1709 ar5211GetLowerUpperValues(channel, pSrcStruct->pChannelList, 1710 pSrcStruct->numChannels, &lFreq, &rFreq); 1711 ar5211GetLowerUpperPcdacs(pcdacValue, lFreq, pSrcStruct, 1712 &llPcdac, &ulPcdac); 1713 ar5211GetLowerUpperPcdacs(pcdacValue, rFreq, pSrcStruct, 1714 &lrPcdac, &urPcdac); 1715 1716 /* get the power index for the pcdac value */ 1717 ar5211FindValueInList(lFreq, llPcdac, pSrcStruct, &lPwr); 1718 ar5211FindValueInList(lFreq, ulPcdac, pSrcStruct, &uPwr); 1719 lScaledPwr = ar5211GetInterpolatedValue(pcdacValue, 1720 llPcdac, ulPcdac, lPwr, uPwr, 0); 1721 1722 ar5211FindValueInList(rFreq, lrPcdac, pSrcStruct, &lPwr); 1723 ar5211FindValueInList(rFreq, urPcdac, pSrcStruct, &uPwr); 1724 rScaledPwr = ar5211GetInterpolatedValue(pcdacValue, 1725 lrPcdac, urPcdac, lPwr, uPwr, 0); 1726 1727 return ar5211GetInterpolatedValue(channel, lFreq, rFreq, 1728 lScaledPwr, rScaledPwr, 0); 1729 } 1730 1731 /* 1732 * Find the value from the calibrated source data struct 1733 */ 1734 HAL_BOOL 1735 ar5211FindValueInList(uint16_t channel, uint16_t pcdacValue, 1736 const PCDACS_EEPROM *pSrcStruct, uint16_t *powerValue) 1737 { 1738 const DATA_PER_CHANNEL *pChannelData; 1739 const uint16_t *pPcdac; 1740 uint16_t i, j; 1741 1742 pChannelData = pSrcStruct->pDataPerChannel; 1743 for (i = 0; i < pSrcStruct->numChannels; i++ ) { 1744 if (pChannelData->channelValue == channel) { 1745 pPcdac = pChannelData->PcdacValues; 1746 for (j = 0; j < pChannelData->numPcdacValues; j++ ) { 1747 if (*pPcdac == pcdacValue) { 1748 *powerValue = pChannelData->PwrValues[j]; 1749 return AH_TRUE; 1750 } 1751 pPcdac++; 1752 } 1753 } 1754 pChannelData++; 1755 } 1756 return AH_FALSE; 1757 } 1758 1759 /* 1760 * Returns interpolated or the scaled up interpolated value 1761 */ 1762 uint16_t 1763 ar5211GetInterpolatedValue(uint16_t target, 1764 uint16_t srcLeft, uint16_t srcRight, 1765 uint16_t targetLeft, uint16_t targetRight, 1766 HAL_BOOL scaleUp) 1767 { 1768 uint16_t rv; 1769 int16_t lRatio; 1770 uint16_t scaleValue = EEP_SCALE; 1771 1772 /* to get an accurate ratio, always scale, if want to scale, then don't scale back down */ 1773 if ((targetLeft * targetRight) == 0) 1774 return 0; 1775 if (scaleUp) 1776 scaleValue = 1; 1777 1778 if (srcRight != srcLeft) { 1779 /* 1780 * Note the ratio always need to be scaled, 1781 * since it will be a fraction. 1782 */ 1783 lRatio = (target - srcLeft) * EEP_SCALE / (srcRight - srcLeft); 1784 if (lRatio < 0) { 1785 /* Return as Left target if value would be negative */ 1786 rv = targetLeft * (scaleUp ? EEP_SCALE : 1); 1787 } else if (lRatio > EEP_SCALE) { 1788 /* Return as Right target if Ratio is greater than 100% (SCALE) */ 1789 rv = targetRight * (scaleUp ? EEP_SCALE : 1); 1790 } else { 1791 rv = (lRatio * targetRight + (EEP_SCALE - lRatio) * 1792 targetLeft) / scaleValue; 1793 } 1794 } else { 1795 rv = targetLeft; 1796 if (scaleUp) 1797 rv *= EEP_SCALE; 1798 } 1799 return rv; 1800 } 1801 1802 /* 1803 * Look for value being within 0.1 of the search values 1804 * however, NDIS can't do float calculations, so multiply everything 1805 * up by EEP_SCALE so can do integer arithmatic 1806 * 1807 * INPUT value -value to search for 1808 * INPUT pList -ptr to the list to search 1809 * INPUT listSize -number of entries in list 1810 * OUTPUT pLowerValue -return the lower value 1811 * OUTPUT pUpperValue -return the upper value 1812 */ 1813 void 1814 ar5211GetLowerUpperValues(uint16_t value, 1815 const uint16_t *pList, uint16_t listSize, 1816 uint16_t *pLowerValue, uint16_t *pUpperValue) 1817 { 1818 const uint16_t listEndValue = *(pList + listSize - 1); 1819 uint32_t target = value * EEP_SCALE; 1820 int i; 1821 1822 /* 1823 * See if value is lower than the first value in the list 1824 * if so return first value 1825 */ 1826 if (target < (uint32_t)(*pList * EEP_SCALE - EEP_DELTA)) { 1827 *pLowerValue = *pList; 1828 *pUpperValue = *pList; 1829 return; 1830 } 1831 1832 /* 1833 * See if value is greater than last value in list 1834 * if so return last value 1835 */ 1836 if (target > (uint32_t)(listEndValue * EEP_SCALE + EEP_DELTA)) { 1837 *pLowerValue = listEndValue; 1838 *pUpperValue = listEndValue; 1839 return; 1840 } 1841 1842 /* look for value being near or between 2 values in list */ 1843 for (i = 0; i < listSize; i++) { 1844 /* 1845 * If value is close to the current value of the list 1846 * then target is not between values, it is one of the values 1847 */ 1848 if (abs(pList[i] * EEP_SCALE - (int32_t) target) < EEP_DELTA) { 1849 *pLowerValue = pList[i]; 1850 *pUpperValue = pList[i]; 1851 return; 1852 } 1853 1854 /* 1855 * Look for value being between current value and next value 1856 * if so return these 2 values 1857 */ 1858 if (target < (uint32_t)(pList[i + 1] * EEP_SCALE - EEP_DELTA)) { 1859 *pLowerValue = pList[i]; 1860 *pUpperValue = pList[i + 1]; 1861 return; 1862 } 1863 } 1864 } 1865 1866 /* 1867 * Get the upper and lower pcdac given the channel and the pcdac 1868 * used in the search 1869 */ 1870 void 1871 ar5211GetLowerUpperPcdacs(uint16_t pcdac, uint16_t channel, 1872 const PCDACS_EEPROM *pSrcStruct, 1873 uint16_t *pLowerPcdac, uint16_t *pUpperPcdac) 1874 { 1875 const DATA_PER_CHANNEL *pChannelData; 1876 int i; 1877 1878 /* Find the channel information */ 1879 pChannelData = pSrcStruct->pDataPerChannel; 1880 for (i = 0; i < pSrcStruct->numChannels; i++) { 1881 if (pChannelData->channelValue == channel) 1882 break; 1883 pChannelData++; 1884 } 1885 ar5211GetLowerUpperValues(pcdac, pChannelData->PcdacValues, 1886 pChannelData->numPcdacValues, pLowerPcdac, pUpperPcdac); 1887 } 1888 1889 #define DYN_ADJ_UP_MARGIN 15 1890 #define DYN_ADJ_LO_MARGIN 20 1891 1892 static const GAIN_OPTIMIZATION_LADDER gainLadder = { 1893 9, /* numStepsInLadder */ 1894 4, /* defaultStepNum */ 1895 { { {4, 1, 1, 1}, 6, "FG8"}, 1896 { {4, 0, 1, 1}, 4, "FG7"}, 1897 { {3, 1, 1, 1}, 3, "FG6"}, 1898 { {4, 0, 0, 1}, 1, "FG5"}, 1899 { {4, 1, 1, 0}, 0, "FG4"}, /* noJack */ 1900 { {4, 0, 1, 0}, -2, "FG3"}, /* halfJack */ 1901 { {3, 1, 1, 0}, -3, "FG2"}, /* clip3 */ 1902 { {4, 0, 0, 0}, -4, "FG1"}, /* noJack */ 1903 { {2, 1, 1, 0}, -6, "FG0"} /* clip2 */ 1904 } 1905 }; 1906 1907 /* 1908 * Initialize the gain structure to good values 1909 */ 1910 void 1911 ar5211InitializeGainValues(struct ath_hal *ah) 1912 { 1913 struct ath_hal_5211 *ahp = AH5211(ah); 1914 GAIN_VALUES *gv = &ahp->ah_gainValues; 1915 1916 /* initialize gain optimization values */ 1917 gv->currStepNum = gainLadder.defaultStepNum; 1918 gv->currStep = &gainLadder.optStep[gainLadder.defaultStepNum]; 1919 gv->active = AH_TRUE; 1920 gv->loTrig = 20; 1921 gv->hiTrig = 35; 1922 } 1923 1924 static HAL_BOOL 1925 ar5211InvalidGainReadback(struct ath_hal *ah, GAIN_VALUES *gv) 1926 { 1927 const struct ieee80211_channel *chan = AH_PRIVATE(ah)->ah_curchan; 1928 uint32_t gStep, g; 1929 uint32_t L1, L2, L3, L4; 1930 1931 if (IEEE80211_IS_CHAN_CCK(chan)) { 1932 gStep = 0x18; 1933 L1 = 0; 1934 L2 = gStep + 4; 1935 L3 = 0x40; 1936 L4 = L3 + 50; 1937 1938 gv->loTrig = L1; 1939 gv->hiTrig = L4+5; 1940 } else { 1941 gStep = 0x3f; 1942 L1 = 0; 1943 L2 = 50; 1944 L3 = L1; 1945 L4 = L3 + 50; 1946 1947 gv->loTrig = L1 + DYN_ADJ_LO_MARGIN; 1948 gv->hiTrig = L4 - DYN_ADJ_UP_MARGIN; 1949 } 1950 g = gv->currGain; 1951 1952 return !((g >= L1 && g<= L2) || (g >= L3 && g <= L4)); 1953 } 1954 1955 /* 1956 * Enable the probe gain check on the next packet 1957 */ 1958 static void 1959 ar5211RequestRfgain(struct ath_hal *ah) 1960 { 1961 struct ath_hal_5211 *ahp = AH5211(ah); 1962 1963 /* Enable the gain readback probe */ 1964 OS_REG_WRITE(ah, AR_PHY_PAPD_PROBE, 1965 SM(ahp->ah_tx6PowerInHalfDbm, AR_PHY_PAPD_PROBE_POWERTX) 1966 | AR_PHY_PAPD_PROBE_NEXT_TX); 1967 1968 ahp->ah_rfgainState = HAL_RFGAIN_READ_REQUESTED; 1969 } 1970 1971 /* 1972 * Exported call to check for a recent gain reading and return 1973 * the current state of the thermal calibration gain engine. 1974 */ 1975 HAL_RFGAIN 1976 ar5211GetRfgain(struct ath_hal *ah) 1977 { 1978 struct ath_hal_5211 *ahp = AH5211(ah); 1979 GAIN_VALUES *gv = &ahp->ah_gainValues; 1980 uint32_t rddata; 1981 1982 if (!gv->active) 1983 return HAL_RFGAIN_INACTIVE; 1984 1985 if (ahp->ah_rfgainState == HAL_RFGAIN_READ_REQUESTED) { 1986 /* Caller had asked to setup a new reading. Check it. */ 1987 rddata = OS_REG_READ(ah, AR_PHY_PAPD_PROBE); 1988 1989 if ((rddata & AR_PHY_PAPD_PROBE_NEXT_TX) == 0) { 1990 /* bit got cleared, we have a new reading. */ 1991 gv->currGain = rddata >> AR_PHY_PAPD_PROBE_GAINF_S; 1992 /* inactive by default */ 1993 ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE; 1994 1995 if (!ar5211InvalidGainReadback(ah, gv) && 1996 ar5211IsGainAdjustNeeded(ah, gv) && 1997 ar5211AdjustGain(ah, gv) > 0) { 1998 /* 1999 * Change needed. Copy ladder info 2000 * into eeprom info. 2001 */ 2002 ar5211SetRfgain(ah, gv); 2003 ahp->ah_rfgainState = HAL_RFGAIN_NEED_CHANGE; 2004 } 2005 } 2006 } 2007 return ahp->ah_rfgainState; 2008 } 2009 2010 /* 2011 * Check to see if our readback gain level sits within the linear 2012 * region of our current variable attenuation window 2013 */ 2014 static HAL_BOOL 2015 ar5211IsGainAdjustNeeded(struct ath_hal *ah, const GAIN_VALUES *gv) 2016 { 2017 return (gv->currGain <= gv->loTrig || gv->currGain >= gv->hiTrig); 2018 } 2019 2020 /* 2021 * Move the rabbit ears in the correct direction. 2022 */ 2023 static int32_t 2024 ar5211AdjustGain(struct ath_hal *ah, GAIN_VALUES *gv) 2025 { 2026 /* return > 0 for valid adjustments. */ 2027 if (!gv->active) 2028 return -1; 2029 2030 gv->currStep = &gainLadder.optStep[gv->currStepNum]; 2031 if (gv->currGain >= gv->hiTrig) { 2032 if (gv->currStepNum == 0) { 2033 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2034 "%s: Max gain limit.\n", __func__); 2035 return -1; 2036 } 2037 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2038 "%s: Adding gain: currG=%d [%s] --> ", 2039 __func__, gv->currGain, gv->currStep->stepName); 2040 gv->targetGain = gv->currGain; 2041 while (gv->targetGain >= gv->hiTrig && gv->currStepNum > 0) { 2042 gv->targetGain -= 2 * (gainLadder.optStep[--(gv->currStepNum)].stepGain - 2043 gv->currStep->stepGain); 2044 gv->currStep = &gainLadder.optStep[gv->currStepNum]; 2045 } 2046 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "targG=%d [%s]\n", 2047 gv->targetGain, gv->currStep->stepName); 2048 return 1; 2049 } 2050 if (gv->currGain <= gv->loTrig) { 2051 if (gv->currStepNum == gainLadder.numStepsInLadder-1) { 2052 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2053 "%s: Min gain limit.\n", __func__); 2054 return -2; 2055 } 2056 HALDEBUG(ah, HAL_DEBUG_RFPARAM, 2057 "%s: Deducting gain: currG=%d [%s] --> ", 2058 __func__, gv->currGain, gv->currStep->stepName); 2059 gv->targetGain = gv->currGain; 2060 while (gv->targetGain <= gv->loTrig && 2061 gv->currStepNum < (gainLadder.numStepsInLadder - 1)) { 2062 gv->targetGain -= 2 * 2063 (gainLadder.optStep[++(gv->currStepNum)].stepGain - gv->currStep->stepGain); 2064 gv->currStep = &gainLadder.optStep[gv->currStepNum]; 2065 } 2066 HALDEBUG(ah, HAL_DEBUG_RFPARAM, "targG=%d [%s]\n", 2067 gv->targetGain, gv->currStep->stepName); 2068 return 2; 2069 } 2070 return 0; /* caller didn't call needAdjGain first */ 2071 } 2072 2073 /* 2074 * Adjust the 5GHz EEPROM information with the desired calibration values. 2075 */ 2076 static void 2077 ar5211SetRfgain(struct ath_hal *ah, const GAIN_VALUES *gv) 2078 { 2079 HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom; 2080 2081 if (!gv->active) 2082 return; 2083 ee->ee_cornerCal.clip = gv->currStep->paramVal[0]; /* bb_tx_clip */ 2084 ee->ee_cornerCal.pd90 = gv->currStep->paramVal[1]; /* rf_pwd_90 */ 2085 ee->ee_cornerCal.pd84 = gv->currStep->paramVal[2]; /* rf_pwd_84 */ 2086 ee->ee_cornerCal.gSel = gv->currStep->paramVal[3]; /* rf_rfgainsel */ 2087 } 2088 2089 static void 2090 ar5211SetOperatingMode(struct ath_hal *ah, int opmode) 2091 { 2092 struct ath_hal_5211 *ahp = AH5211(ah); 2093 uint32_t val; 2094 2095 val = OS_REG_READ(ah, AR_STA_ID1) & 0xffff; 2096 switch (opmode) { 2097 case HAL_M_HOSTAP: 2098 OS_REG_WRITE(ah, AR_STA_ID1, val 2099 | AR_STA_ID1_STA_AP 2100 | AR_STA_ID1_RTS_USE_DEF 2101 | ahp->ah_staId1Defaults); 2102 break; 2103 case HAL_M_IBSS: 2104 OS_REG_WRITE(ah, AR_STA_ID1, val 2105 | AR_STA_ID1_ADHOC 2106 | AR_STA_ID1_DESC_ANTENNA 2107 | ahp->ah_staId1Defaults); 2108 break; 2109 case HAL_M_STA: 2110 case HAL_M_MONITOR: 2111 OS_REG_WRITE(ah, AR_STA_ID1, val 2112 | AR_STA_ID1_DEFAULT_ANTENNA 2113 | ahp->ah_staId1Defaults); 2114 break; 2115 } 2116 } 2117 2118 void 2119 ar5211SetPCUConfig(struct ath_hal *ah) 2120 { 2121 ar5211SetOperatingMode(ah, AH_PRIVATE(ah)->ah_opmode); 2122 }
Cache object: ed611afd6c6d9caef014003a41a5ee5a
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