1 /* 2 * Copyright (c) 2008-2009 Sam Leffler, Errno Consulting 3 * Copyright (c) 2008 Atheros Communications, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 * 17 * $FreeBSD$ 18 */ 19 #include "opt_ah.h" 20 21 #include "ah.h" 22 #include "ah_internal.h" 23 #include "ah_devid.h" 24 25 #include "ah_eeprom_v14.h" /* XXX for tx/rx gain */ 26 27 #include "ar9002/ar9280.h" 28 #include "ar5416/ar5416reg.h" 29 #include "ar5416/ar5416phy.h" 30 31 #include "ar9002/ar9280v1.ini" 32 #include "ar9002/ar9280v2.ini" 33 #include "ar9002/ar9280_olc.h" 34 35 static const HAL_PERCAL_DATA ar9280_iq_cal = { /* single sample */ 36 .calName = "IQ", .calType = IQ_MISMATCH_CAL, 37 .calNumSamples = MIN_CAL_SAMPLES, 38 .calCountMax = PER_MAX_LOG_COUNT, 39 .calCollect = ar5416IQCalCollect, 40 .calPostProc = ar5416IQCalibration 41 }; 42 static const HAL_PERCAL_DATA ar9280_adc_gain_cal = { /* single sample */ 43 .calName = "ADC Gain", .calType = ADC_GAIN_CAL, 44 .calNumSamples = MIN_CAL_SAMPLES, 45 .calCountMax = PER_MAX_LOG_COUNT, 46 .calCollect = ar5416AdcGainCalCollect, 47 .calPostProc = ar5416AdcGainCalibration 48 }; 49 static const HAL_PERCAL_DATA ar9280_adc_dc_cal = { /* single sample */ 50 .calName = "ADC DC", .calType = ADC_DC_CAL, 51 .calNumSamples = MIN_CAL_SAMPLES, 52 .calCountMax = PER_MAX_LOG_COUNT, 53 .calCollect = ar5416AdcDcCalCollect, 54 .calPostProc = ar5416AdcDcCalibration 55 }; 56 static const HAL_PERCAL_DATA ar9280_adc_init_dc_cal = { 57 .calName = "ADC Init DC", .calType = ADC_DC_INIT_CAL, 58 .calNumSamples = MIN_CAL_SAMPLES, 59 .calCountMax = INIT_LOG_COUNT, 60 .calCollect = ar5416AdcDcCalCollect, 61 .calPostProc = ar5416AdcDcCalibration 62 }; 63 64 static void ar9280ConfigPCIE(struct ath_hal *ah, HAL_BOOL restore, 65 HAL_BOOL power_off); 66 static void ar9280DisablePCIE(struct ath_hal *ah); 67 static HAL_BOOL ar9280FillCapabilityInfo(struct ath_hal *ah); 68 static void ar9280WriteIni(struct ath_hal *ah, 69 const struct ieee80211_channel *chan); 70 71 static void 72 ar9280AniSetup(struct ath_hal *ah) 73 { 74 /* 75 * These are the parameters from the AR5416 ANI code; 76 * they likely need quite a bit of adjustment for the 77 * AR9280. 78 */ 79 static const struct ar5212AniParams aniparams = { 80 .maxNoiseImmunityLevel = 4, /* levels 0..4 */ 81 .totalSizeDesired = { -55, -55, -55, -55, -62 }, 82 .coarseHigh = { -14, -14, -14, -14, -12 }, 83 .coarseLow = { -64, -64, -64, -64, -70 }, 84 .firpwr = { -78, -78, -78, -78, -80 }, 85 .maxSpurImmunityLevel = 7, 86 .cycPwrThr1 = { 2, 4, 6, 8, 10, 12, 14, 16 }, 87 .maxFirstepLevel = 2, /* levels 0..2 */ 88 .firstep = { 0, 4, 8 }, 89 .ofdmTrigHigh = 500, 90 .ofdmTrigLow = 200, 91 .cckTrigHigh = 200, 92 .cckTrigLow = 100, 93 .rssiThrHigh = 40, 94 .rssiThrLow = 7, 95 .period = 100, 96 }; 97 /* NB: disable ANI noise immmunity for reliable RIFS rx */ 98 AH5416(ah)->ah_ani_function &= ~(1 << HAL_ANI_NOISE_IMMUNITY_LEVEL); 99 100 /* NB: ANI is not enabled yet */ 101 ar5416AniAttach(ah, &aniparams, &aniparams, AH_TRUE); 102 } 103 104 void 105 ar9280InitPLL(struct ath_hal *ah, const struct ieee80211_channel *chan) 106 { 107 uint32_t pll = SM(0x5, AR_RTC_SOWL_PLL_REFDIV); 108 109 if (AR_SREV_MERLIN_20(ah) && 110 chan != AH_NULL && IEEE80211_IS_CHAN_5GHZ(chan)) { 111 /* 112 * PLL WAR for Merlin 2.0/2.1 113 * When doing fast clock, set PLL to 0x142c 114 * Else, set PLL to 0x2850 to prevent reset-to-reset variation 115 */ 116 pll = IS_5GHZ_FAST_CLOCK_EN(ah, chan) ? 0x142c : 0x2850; 117 if (IEEE80211_IS_CHAN_HALF(chan)) 118 pll |= SM(0x1, AR_RTC_SOWL_PLL_CLKSEL); 119 else if (IEEE80211_IS_CHAN_QUARTER(chan)) 120 pll |= SM(0x2, AR_RTC_SOWL_PLL_CLKSEL); 121 } else if (AR_SREV_MERLIN_10_OR_LATER(ah)) { 122 pll = SM(0x5, AR_RTC_SOWL_PLL_REFDIV); 123 if (chan != AH_NULL) { 124 if (IEEE80211_IS_CHAN_HALF(chan)) 125 pll |= SM(0x1, AR_RTC_SOWL_PLL_CLKSEL); 126 else if (IEEE80211_IS_CHAN_QUARTER(chan)) 127 pll |= SM(0x2, AR_RTC_SOWL_PLL_CLKSEL); 128 if (IEEE80211_IS_CHAN_5GHZ(chan)) 129 pll |= SM(0x28, AR_RTC_SOWL_PLL_DIV); 130 else 131 pll |= SM(0x2c, AR_RTC_SOWL_PLL_DIV); 132 } else 133 pll |= SM(0x2c, AR_RTC_SOWL_PLL_DIV); 134 } 135 136 OS_REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll); 137 OS_DELAY(RTC_PLL_SETTLE_DELAY); 138 OS_REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_SLEEP_DERIVED_CLK); 139 } 140 141 /* XXX shouldn't be here! */ 142 #define EEP_MINOR(_ah) \ 143 (AH_PRIVATE(_ah)->ah_eeversion & AR5416_EEP_VER_MINOR_MASK) 144 145 /* 146 * Attach for an AR9280 part. 147 */ 148 static struct ath_hal * 149 ar9280Attach(uint16_t devid, HAL_SOFTC sc, 150 HAL_BUS_TAG st, HAL_BUS_HANDLE sh, uint16_t *eepromdata, 151 HAL_STATUS *status) 152 { 153 struct ath_hal_9280 *ahp9280; 154 struct ath_hal_5212 *ahp; 155 struct ath_hal *ah; 156 uint32_t val; 157 HAL_STATUS ecode; 158 HAL_BOOL rfStatus; 159 int8_t pwr_table_offset; 160 uint8_t pwr; 161 162 HALDEBUG(AH_NULL, HAL_DEBUG_ATTACH, "%s: sc %p st %p sh %p\n", 163 __func__, sc, (void*) st, (void*) sh); 164 165 /* NB: memory is returned zero'd */ 166 ahp9280 = ath_hal_malloc(sizeof (struct ath_hal_9280)); 167 if (ahp9280 == AH_NULL) { 168 HALDEBUG(AH_NULL, HAL_DEBUG_ANY, 169 "%s: cannot allocate memory for state block\n", __func__); 170 *status = HAL_ENOMEM; 171 return AH_NULL; 172 } 173 ahp = AH5212(ahp9280); 174 ah = &ahp->ah_priv.h; 175 176 ar5416InitState(AH5416(ah), devid, sc, st, sh, status); 177 178 /* 179 * Use the "local" EEPROM data given to us by the higher layers. 180 * This is a private copy out of system flash. The Linux ath9k 181 * commit for the initial AR9130 support mentions MMIO flash 182 * access is "unreliable." -adrian 183 */ 184 if (eepromdata != AH_NULL) { 185 AH_PRIVATE((ah))->ah_eepromRead = ath_hal_EepromDataRead; 186 AH_PRIVATE((ah))->ah_eepromWrite = NULL; 187 ah->ah_eepromdata = eepromdata; 188 } 189 190 /* XXX override with 9280 specific state */ 191 /* override 5416 methods for our needs */ 192 AH5416(ah)->ah_initPLL = ar9280InitPLL; 193 194 ah->ah_setAntennaSwitch = ar9280SetAntennaSwitch; 195 ah->ah_configPCIE = ar9280ConfigPCIE; 196 ah->ah_disablePCIE = ar9280DisablePCIE; 197 198 AH5416(ah)->ah_cal.iqCalData.calData = &ar9280_iq_cal; 199 AH5416(ah)->ah_cal.adcGainCalData.calData = &ar9280_adc_gain_cal; 200 AH5416(ah)->ah_cal.adcDcCalData.calData = &ar9280_adc_dc_cal; 201 AH5416(ah)->ah_cal.adcDcCalInitData.calData = &ar9280_adc_init_dc_cal; 202 AH5416(ah)->ah_cal.suppCals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL; 203 204 AH5416(ah)->ah_spurMitigate = ar9280SpurMitigate; 205 AH5416(ah)->ah_writeIni = ar9280WriteIni; 206 AH5416(ah)->ah_olcInit = ar9280olcInit; 207 AH5416(ah)->ah_olcTempCompensation = ar9280olcTemperatureCompensation; 208 AH5416(ah)->ah_setPowerCalTable = ar9280SetPowerCalTable; 209 210 AH5416(ah)->ah_rx_chainmask = AR9280_DEFAULT_RXCHAINMASK; 211 AH5416(ah)->ah_tx_chainmask = AR9280_DEFAULT_TXCHAINMASK; 212 213 if (!ar5416SetResetReg(ah, HAL_RESET_POWER_ON)) { 214 /* reset chip */ 215 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: couldn't reset chip\n", 216 __func__); 217 ecode = HAL_EIO; 218 goto bad; 219 } 220 221 if (!ar5416SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) { 222 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: couldn't wakeup chip\n", 223 __func__); 224 ecode = HAL_EIO; 225 goto bad; 226 } 227 /* Read Revisions from Chips before taking out of reset */ 228 val = OS_REG_READ(ah, AR_SREV); 229 HALDEBUG(ah, HAL_DEBUG_ATTACH, 230 "%s: ID 0x%x VERSION 0x%x TYPE 0x%x REVISION 0x%x\n", 231 __func__, MS(val, AR_XSREV_ID), MS(val, AR_XSREV_VERSION), 232 MS(val, AR_XSREV_TYPE), MS(val, AR_XSREV_REVISION)); 233 /* NB: include chip type to differentiate from pre-Sowl versions */ 234 AH_PRIVATE(ah)->ah_macVersion = 235 (val & AR_XSREV_VERSION) >> AR_XSREV_TYPE_S; 236 AH_PRIVATE(ah)->ah_macRev = MS(val, AR_XSREV_REVISION); 237 AH_PRIVATE(ah)->ah_ispcie = (val & AR_XSREV_TYPE_HOST_MODE) == 0; 238 239 /* setup common ini data; rf backends handle remainder */ 240 if (AR_SREV_MERLIN_20_OR_LATER(ah)) { 241 HAL_INI_INIT(&ahp->ah_ini_modes, ar9280Modes_v2, 6); 242 HAL_INI_INIT(&ahp->ah_ini_common, ar9280Common_v2, 2); 243 HAL_INI_INIT(&AH5416(ah)->ah_ini_pcieserdes, 244 ar9280PciePhy_clkreq_always_on_L1_v2, 2); 245 HAL_INI_INIT(&ahp9280->ah_ini_xmodes, 246 ar9280Modes_fast_clock_v2, 3); 247 } else { 248 HAL_INI_INIT(&ahp->ah_ini_modes, ar9280Modes_v1, 6); 249 HAL_INI_INIT(&ahp->ah_ini_common, ar9280Common_v1, 2); 250 HAL_INI_INIT(&AH5416(ah)->ah_ini_pcieserdes, 251 ar9280PciePhy_v1, 2); 252 } 253 ar5416AttachPCIE(ah); 254 255 ecode = ath_hal_v14EepromAttach(ah); 256 if (ecode != HAL_OK) 257 goto bad; 258 259 if (!ar5416ChipReset(ah, AH_NULL)) { /* reset chip */ 260 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__); 261 ecode = HAL_EIO; 262 goto bad; 263 } 264 265 AH_PRIVATE(ah)->ah_phyRev = OS_REG_READ(ah, AR_PHY_CHIP_ID); 266 267 if (!ar5212ChipTest(ah)) { 268 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: hardware self-test failed\n", 269 __func__); 270 ecode = HAL_ESELFTEST; 271 goto bad; 272 } 273 274 /* 275 * Set correct Baseband to analog shift 276 * setting to access analog chips. 277 */ 278 OS_REG_WRITE(ah, AR_PHY(0), 0x00000007); 279 280 /* Read Radio Chip Rev Extract */ 281 AH_PRIVATE(ah)->ah_analog5GhzRev = ar5416GetRadioRev(ah); 282 switch (AH_PRIVATE(ah)->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR) { 283 case AR_RAD2133_SREV_MAJOR: /* Sowl: 2G/3x3 */ 284 case AR_RAD5133_SREV_MAJOR: /* Sowl: 2+5G/3x3 */ 285 break; 286 default: 287 if (AH_PRIVATE(ah)->ah_analog5GhzRev == 0) { 288 AH_PRIVATE(ah)->ah_analog5GhzRev = 289 AR_RAD5133_SREV_MAJOR; 290 break; 291 } 292 #ifdef AH_DEBUG 293 HALDEBUG(ah, HAL_DEBUG_ANY, 294 "%s: 5G Radio Chip Rev 0x%02X is not supported by " 295 "this driver\n", __func__, 296 AH_PRIVATE(ah)->ah_analog5GhzRev); 297 ecode = HAL_ENOTSUPP; 298 goto bad; 299 #endif 300 } 301 rfStatus = ar9280RfAttach(ah, &ecode); 302 if (!rfStatus) { 303 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: RF setup failed, status %u\n", 304 __func__, ecode); 305 goto bad; 306 } 307 308 /* Enable fixup for AR_AN_TOP2 if necessary */ 309 /* 310 * The v14 EEPROM layer returns HAL_EIO if PWDCLKIND isn't supported 311 * by the EEPROM version. 312 * 313 * ath9k checks the EEPROM minor version is >= 0x0a here, instead of 314 * the abstracted EEPROM access layer. 315 */ 316 ecode = ath_hal_eepromGet(ah, AR_EEP_PWDCLKIND, &pwr); 317 if (AR_SREV_MERLIN_20_OR_LATER(ah) && ecode == HAL_OK && pwr == 0) { 318 kprintf("[ath] enabling AN_TOP2_FIXUP\n"); 319 AH5416(ah)->ah_need_an_top2_fixup = 1; 320 } 321 322 /* 323 * Check whether the power table offset isn't the default. 324 * This can occur with eeprom minor V21 or greater on Merlin. 325 */ 326 (void) ath_hal_eepromGet(ah, AR_EEP_PWR_TABLE_OFFSET, &pwr_table_offset); 327 if (pwr_table_offset != AR5416_PWR_TABLE_OFFSET_DB) 328 ath_hal_printf(ah, "[ath]: default pwr offset: %d dBm != EEPROM pwr offset: %d dBm; curves will be adjusted.\n", 329 AR5416_PWR_TABLE_OFFSET_DB, (int) pwr_table_offset); 330 331 /* XXX check for >= minor ver 17 */ 332 if (AR_SREV_MERLIN_20(ah)) { 333 /* setup rxgain table */ 334 switch (ath_hal_eepromGet(ah, AR_EEP_RXGAIN_TYPE, AH_NULL)) { 335 case AR5416_EEP_RXGAIN_13dB_BACKOFF: 336 HAL_INI_INIT(&ahp9280->ah_ini_rxgain, 337 ar9280Modes_backoff_13db_rxgain_v2, 6); 338 break; 339 case AR5416_EEP_RXGAIN_23dB_BACKOFF: 340 HAL_INI_INIT(&ahp9280->ah_ini_rxgain, 341 ar9280Modes_backoff_23db_rxgain_v2, 6); 342 break; 343 case AR5416_EEP_RXGAIN_ORIG: 344 HAL_INI_INIT(&ahp9280->ah_ini_rxgain, 345 ar9280Modes_original_rxgain_v2, 6); 346 break; 347 default: 348 HALASSERT(AH_FALSE); 349 goto bad; /* XXX ? try to continue */ 350 } 351 } 352 353 /* XXX check for >= minor ver 19 */ 354 if (AR_SREV_MERLIN_20(ah)) { 355 /* setp txgain table */ 356 switch (ath_hal_eepromGet(ah, AR_EEP_TXGAIN_TYPE, AH_NULL)) { 357 case AR5416_EEP_TXGAIN_HIGH_POWER: 358 HAL_INI_INIT(&ahp9280->ah_ini_txgain, 359 ar9280Modes_high_power_tx_gain_v2, 6); 360 break; 361 case AR5416_EEP_TXGAIN_ORIG: 362 HAL_INI_INIT(&ahp9280->ah_ini_txgain, 363 ar9280Modes_original_tx_gain_v2, 6); 364 break; 365 default: 366 HALASSERT(AH_FALSE); 367 goto bad; /* XXX ? try to continue */ 368 } 369 } 370 371 /* 372 * Got everything we need now to setup the capabilities. 373 */ 374 if (!ar9280FillCapabilityInfo(ah)) { 375 ecode = HAL_EEREAD; 376 goto bad; 377 } 378 379 ecode = ath_hal_eepromGet(ah, AR_EEP_MACADDR, ahp->ah_macaddr); 380 if (ecode != HAL_OK) { 381 HALDEBUG(ah, HAL_DEBUG_ANY, 382 "%s: error getting mac address from EEPROM\n", __func__); 383 goto bad; 384 } 385 /* XXX How about the serial number ? */ 386 /* Read Reg Domain */ 387 AH_PRIVATE(ah)->ah_currentRD = 388 ath_hal_eepromGet(ah, AR_EEP_REGDMN_0, AH_NULL); 389 AH_PRIVATE(ah)->ah_currentRDext = 390 ath_hal_eepromGet(ah, AR_EEP_REGDMN_1, AH_NULL); 391 392 /* 393 * ah_miscMode is populated by ar5416FillCapabilityInfo() 394 * starting from griffin. Set here to make sure that 395 * AR_MISC_MODE_MIC_NEW_LOC_ENABLE is set before a GTK is 396 * placed into hardware. 397 */ 398 if (ahp->ah_miscMode != 0) 399 OS_REG_WRITE(ah, AR_MISC_MODE, OS_REG_READ(ah, AR_MISC_MODE) | ahp->ah_miscMode); 400 401 ar9280AniSetup(ah); /* Anti Noise Immunity */ 402 403 /* Setup noise floor min/max/nominal values */ 404 AH5416(ah)->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9280_2GHZ; 405 AH5416(ah)->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9280_2GHZ; 406 AH5416(ah)->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9280_2GHZ; 407 AH5416(ah)->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9280_5GHZ; 408 AH5416(ah)->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9280_5GHZ; 409 AH5416(ah)->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9280_5GHZ; 410 411 ar5416InitNfHistBuff(AH5416(ah)->ah_cal.nfCalHist); 412 413 HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s: return\n", __func__); 414 415 return ah; 416 bad: 417 if (ah != AH_NULL) 418 ah->ah_detach(ah); 419 if (status) 420 *status = ecode; 421 return AH_NULL; 422 } 423 424 static void 425 ar9280ConfigPCIE(struct ath_hal *ah, HAL_BOOL restore, HAL_BOOL power_off) 426 { 427 uint32_t val; 428 429 if (AH_PRIVATE(ah)->ah_ispcie && !restore) { 430 ath_hal_ini_write(ah, &AH5416(ah)->ah_ini_pcieserdes, 1, 0); 431 OS_DELAY(1000); 432 } 433 434 435 /* 436 * Set PCIe workaround bits 437 * 438 * NOTE: 439 * 440 * In Merlin and Kite, bit 14 in WA register (disable L1) should only 441 * be set when device enters D3 and be cleared when device comes back 442 * to D0. 443 */ 444 if (power_off) { /* Power-off */ 445 OS_REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA); 446 447 val = OS_REG_READ(ah, AR_WA); 448 449 /* 450 * Disable bit 6 and 7 before entering D3 to prevent 451 * system hang. 452 */ 453 val &= ~(AR_WA_BIT6 | AR_WA_BIT7); 454 455 /* 456 * XXX Not sure, is specified in the reference HAL. 457 */ 458 val |= AR_WA_BIT22; 459 460 /* 461 * See above: set AR_WA_D3_L1_DISABLE when entering D3 state. 462 * 463 * XXX The reference HAL does it this way - it only sets 464 * AR_WA_D3_L1_DISABLE if it's set in AR9280_WA_DEFAULT, 465 * which it (currently) isn't. So the following statement 466 * is currently a NOP. 467 */ 468 if (AR9280_WA_DEFAULT & AR_WA_D3_L1_DISABLE) 469 val |= AR_WA_D3_L1_DISABLE; 470 471 OS_REG_WRITE(ah, AR_WA, val); 472 } else { /* Power-on */ 473 val = AR9280_WA_DEFAULT; 474 475 /* 476 * See note above: make sure L1_DISABLE is not set. 477 */ 478 val &= (~AR_WA_D3_L1_DISABLE); 479 OS_REG_WRITE(ah, AR_WA, val); 480 481 /* set bit 19 to allow forcing of pcie core into L1 state */ 482 OS_REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA); 483 } 484 } 485 486 static void 487 ar9280DisablePCIE(struct ath_hal *ah) 488 { 489 } 490 491 static void 492 ar9280WriteIni(struct ath_hal *ah, const struct ieee80211_channel *chan) 493 { 494 u_int modesIndex, freqIndex; 495 int regWrites = 0; 496 int i; 497 const HAL_INI_ARRAY *ia; 498 499 /* Setup the indices for the next set of register array writes */ 500 /* XXX Ignore 11n dynamic mode on the AR5416 for the moment */ 501 if (IEEE80211_IS_CHAN_2GHZ(chan)) { 502 freqIndex = 2; 503 if (IEEE80211_IS_CHAN_HT40(chan)) 504 modesIndex = 3; 505 else if (IEEE80211_IS_CHAN_108G(chan)) 506 modesIndex = 5; 507 else 508 modesIndex = 4; 509 } else { 510 freqIndex = 1; 511 if (IEEE80211_IS_CHAN_HT40(chan) || 512 IEEE80211_IS_CHAN_TURBO(chan)) 513 modesIndex = 2; 514 else 515 modesIndex = 1; 516 } 517 518 /* Set correct Baseband to analog shift setting to access analog chips. */ 519 OS_REG_WRITE(ah, AR_PHY(0), 0x00000007); 520 OS_REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC); 521 522 /* 523 * This is unwound because at the moment, there's a requirement 524 * for Merlin (and later, perhaps) to have a specific bit fixed 525 * in the AR_AN_TOP2 register before writing it. 526 */ 527 ia = &AH5212(ah)->ah_ini_modes; 528 #if 0 529 regWrites = ath_hal_ini_write(ah, &AH5212(ah)->ah_ini_modes, 530 modesIndex, regWrites); 531 #endif 532 HALASSERT(modesIndex < ia->cols); 533 for (i = 0; i < ia->rows; i++) { 534 uint32_t reg = HAL_INI_VAL(ia, i, 0); 535 uint32_t val = HAL_INI_VAL(ia, i, modesIndex); 536 537 if (reg == AR_AN_TOP2 && AH5416(ah)->ah_need_an_top2_fixup) 538 val &= ~AR_AN_TOP2_PWDCLKIND; 539 540 OS_REG_WRITE(ah, reg, val); 541 542 /* Analog shift register delay seems needed for Merlin - PR kern/154220 */ 543 if (reg >= 0x7800 && reg < 0x7900) 544 OS_DELAY(100); 545 546 DMA_YIELD(regWrites); 547 } 548 549 if (AR_SREV_MERLIN_20_OR_LATER(ah)) { 550 regWrites = ath_hal_ini_write(ah, &AH9280(ah)->ah_ini_rxgain, 551 modesIndex, regWrites); 552 regWrites = ath_hal_ini_write(ah, &AH9280(ah)->ah_ini_txgain, 553 modesIndex, regWrites); 554 } 555 /* XXX Merlin 100us delay for shift registers */ 556 regWrites = ath_hal_ini_write(ah, &AH5212(ah)->ah_ini_common, 557 1, regWrites); 558 559 if (AR_SREV_MERLIN_20(ah) && IS_5GHZ_FAST_CLOCK_EN(ah, chan)) { 560 /* 5GHz channels w/ Fast Clock use different modal values */ 561 regWrites = ath_hal_ini_write(ah, &AH9280(ah)->ah_ini_xmodes, 562 modesIndex, regWrites); 563 } 564 } 565 566 #define AR_BASE_FREQ_2GHZ 2300 567 #define AR_BASE_FREQ_5GHZ 4900 568 #define AR_SPUR_FEEQ_BOUND_HT40 19 569 #define AR_SPUR_FEEQ_BOUND_HT20 10 570 571 void 572 ar9280SpurMitigate(struct ath_hal *ah, const struct ieee80211_channel *chan) 573 { 574 static const int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8, 575 AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60 }; 576 static const int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10, 577 AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60 }; 578 static int inc[4] = { 0, 100, 0, 0 }; 579 580 int bb_spur = AR_NO_SPUR; 581 int freq; 582 int bin, cur_bin; 583 int bb_spur_off, spur_subchannel_sd; 584 int spur_freq_sd; 585 int spur_delta_phase; 586 int denominator; 587 int upper, lower, cur_vit_mask; 588 int tmp, newVal; 589 int i; 590 CHAN_CENTERS centers; 591 592 int8_t mask_m[123]; 593 int8_t mask_p[123]; 594 int8_t mask_amt; 595 int tmp_mask; 596 int cur_bb_spur; 597 HAL_BOOL is2GHz = IEEE80211_IS_CHAN_2GHZ(chan); 598 599 OS_MEMZERO(&mask_m, sizeof(int8_t) * 123); 600 OS_MEMZERO(&mask_p, sizeof(int8_t) * 123); 601 602 ar5416GetChannelCenters(ah, chan, ¢ers); 603 freq = centers.synth_center; 604 605 /* 606 * Need to verify range +/- 9.38 for static ht20 and +/- 18.75 for ht40, 607 * otherwise spur is out-of-band and can be ignored. 608 */ 609 for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) { 610 cur_bb_spur = ath_hal_getSpurChan(ah, i, is2GHz); 611 /* Get actual spur freq in MHz from EEPROM read value */ 612 if (is2GHz) { 613 cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_2GHZ; 614 } else { 615 cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_5GHZ; 616 } 617 618 if (AR_NO_SPUR == cur_bb_spur) 619 break; 620 cur_bb_spur = cur_bb_spur - freq; 621 622 if (IEEE80211_IS_CHAN_HT40(chan)) { 623 if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT40) && 624 (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT40)) { 625 bb_spur = cur_bb_spur; 626 break; 627 } 628 } else if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT20) && 629 (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT20)) { 630 bb_spur = cur_bb_spur; 631 break; 632 } 633 } 634 635 if (AR_NO_SPUR == bb_spur) { 636 #if 1 637 /* 638 * MRC CCK can interfere with beacon detection and cause deaf/mute. 639 * Disable MRC CCK for now. 640 */ 641 OS_REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK, AR_PHY_FORCE_CLKEN_CCK_MRC_MUX); 642 #else 643 /* Enable MRC CCK if no spur is found in this channel. */ 644 OS_REG_SET_BIT(ah, AR_PHY_FORCE_CLKEN_CCK, AR_PHY_FORCE_CLKEN_CCK_MRC_MUX); 645 #endif 646 return; 647 } else { 648 /* 649 * For Merlin, spur can break CCK MRC algorithm. Disable CCK MRC if spur 650 * is found in this channel. 651 */ 652 OS_REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK, AR_PHY_FORCE_CLKEN_CCK_MRC_MUX); 653 } 654 655 bin = bb_spur * 320; 656 657 tmp = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0)); 658 659 newVal = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI | 660 AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER | 661 AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK | 662 AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK); 663 OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0), newVal); 664 665 newVal = (AR_PHY_SPUR_REG_MASK_RATE_CNTL | 666 AR_PHY_SPUR_REG_ENABLE_MASK_PPM | 667 AR_PHY_SPUR_REG_MASK_RATE_SELECT | 668 AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI | 669 SM(AR5416_SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH)); 670 OS_REG_WRITE(ah, AR_PHY_SPUR_REG, newVal); 671 672 /* Pick control or extn channel to cancel the spur */ 673 if (IEEE80211_IS_CHAN_HT40(chan)) { 674 if (bb_spur < 0) { 675 spur_subchannel_sd = 1; 676 bb_spur_off = bb_spur + 10; 677 } else { 678 spur_subchannel_sd = 0; 679 bb_spur_off = bb_spur - 10; 680 } 681 } else { 682 spur_subchannel_sd = 0; 683 bb_spur_off = bb_spur; 684 } 685 686 /* 687 * spur_delta_phase = bb_spur/40 * 2**21 for static ht20, 688 * /80 for dyn2040. 689 */ 690 if (IEEE80211_IS_CHAN_HT40(chan)) 691 spur_delta_phase = ((bb_spur * 262144) / 10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE; 692 else 693 spur_delta_phase = ((bb_spur * 524288) / 10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE; 694 695 /* 696 * in 11A mode the denominator of spur_freq_sd should be 40 and 697 * it should be 44 in 11G 698 */ 699 denominator = IEEE80211_IS_CHAN_2GHZ(chan) ? 44 : 40; 700 spur_freq_sd = ((bb_spur_off * 2048) / denominator) & 0x3ff; 701 702 newVal = (AR_PHY_TIMING11_USE_SPUR_IN_AGC | 703 SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) | 704 SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE)); 705 OS_REG_WRITE(ah, AR_PHY_TIMING11, newVal); 706 707 /* Choose to cancel between control and extension channels */ 708 newVal = spur_subchannel_sd << AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S; 709 OS_REG_WRITE(ah, AR_PHY_SFCORR_EXT, newVal); 710 711 /* 712 * ============================================ 713 * Set Pilot and Channel Masks 714 * 715 * pilot mask 1 [31:0] = +6..-26, no 0 bin 716 * pilot mask 2 [19:0] = +26..+7 717 * 718 * channel mask 1 [31:0] = +6..-26, no 0 bin 719 * channel mask 2 [19:0] = +26..+7 720 */ 721 cur_bin = -6000; 722 upper = bin + 100; 723 lower = bin - 100; 724 725 for (i = 0; i < 4; i++) { 726 int pilot_mask = 0; 727 int chan_mask = 0; 728 int bp = 0; 729 for (bp = 0; bp < 30; bp++) { 730 if ((cur_bin > lower) && (cur_bin < upper)) { 731 pilot_mask = pilot_mask | 0x1 << bp; 732 chan_mask = chan_mask | 0x1 << bp; 733 } 734 cur_bin += 100; 735 } 736 cur_bin += inc[i]; 737 OS_REG_WRITE(ah, pilot_mask_reg[i], pilot_mask); 738 OS_REG_WRITE(ah, chan_mask_reg[i], chan_mask); 739 } 740 741 /* ================================================= 742 * viterbi mask 1 based on channel magnitude 743 * four levels 0-3 744 * - mask (-27 to 27) (reg 64,0x9900 to 67,0x990c) 745 * [1 2 2 1] for -9.6 or [1 2 1] for +16 746 * - enable_mask_ppm, all bins move with freq 747 * 748 * - mask_select, 8 bits for rates (reg 67,0x990c) 749 * - mask_rate_cntl, 8 bits for rates (reg 67,0x990c) 750 * choose which mask to use mask or mask2 751 */ 752 753 /* 754 * viterbi mask 2 2nd set for per data rate puncturing 755 * four levels 0-3 756 * - mask_select, 8 bits for rates (reg 67) 757 * - mask (-27 to 27) (reg 98,0x9988 to 101,0x9994) 758 * [1 2 2 1] for -9.6 or [1 2 1] for +16 759 */ 760 cur_vit_mask = 6100; 761 upper = bin + 120; 762 lower = bin - 120; 763 764 for (i = 0; i < 123; i++) { 765 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) { 766 if ((abs(cur_vit_mask - bin)) < 75) { 767 mask_amt = 1; 768 } else { 769 mask_amt = 0; 770 } 771 if (cur_vit_mask < 0) { 772 mask_m[abs(cur_vit_mask / 100)] = mask_amt; 773 } else { 774 mask_p[cur_vit_mask / 100] = mask_amt; 775 } 776 } 777 cur_vit_mask -= 100; 778 } 779 780 tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28) 781 | (mask_m[48] << 26) | (mask_m[49] << 24) 782 | (mask_m[50] << 22) | (mask_m[51] << 20) 783 | (mask_m[52] << 18) | (mask_m[53] << 16) 784 | (mask_m[54] << 14) | (mask_m[55] << 12) 785 | (mask_m[56] << 10) | (mask_m[57] << 8) 786 | (mask_m[58] << 6) | (mask_m[59] << 4) 787 | (mask_m[60] << 2) | (mask_m[61] << 0); 788 OS_REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask); 789 OS_REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask); 790 791 tmp_mask = (mask_m[31] << 28) 792 | (mask_m[32] << 26) | (mask_m[33] << 24) 793 | (mask_m[34] << 22) | (mask_m[35] << 20) 794 | (mask_m[36] << 18) | (mask_m[37] << 16) 795 | (mask_m[48] << 14) | (mask_m[39] << 12) 796 | (mask_m[40] << 10) | (mask_m[41] << 8) 797 | (mask_m[42] << 6) | (mask_m[43] << 4) 798 | (mask_m[44] << 2) | (mask_m[45] << 0); 799 OS_REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask); 800 OS_REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask); 801 802 tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28) 803 | (mask_m[18] << 26) | (mask_m[18] << 24) 804 | (mask_m[20] << 22) | (mask_m[20] << 20) 805 | (mask_m[22] << 18) | (mask_m[22] << 16) 806 | (mask_m[24] << 14) | (mask_m[24] << 12) 807 | (mask_m[25] << 10) | (mask_m[26] << 8) 808 | (mask_m[27] << 6) | (mask_m[28] << 4) 809 | (mask_m[29] << 2) | (mask_m[30] << 0); 810 OS_REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask); 811 OS_REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask); 812 813 tmp_mask = (mask_m[ 0] << 30) | (mask_m[ 1] << 28) 814 | (mask_m[ 2] << 26) | (mask_m[ 3] << 24) 815 | (mask_m[ 4] << 22) | (mask_m[ 5] << 20) 816 | (mask_m[ 6] << 18) | (mask_m[ 7] << 16) 817 | (mask_m[ 8] << 14) | (mask_m[ 9] << 12) 818 | (mask_m[10] << 10) | (mask_m[11] << 8) 819 | (mask_m[12] << 6) | (mask_m[13] << 4) 820 | (mask_m[14] << 2) | (mask_m[15] << 0); 821 OS_REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask); 822 OS_REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask); 823 824 tmp_mask = (mask_p[15] << 28) 825 | (mask_p[14] << 26) | (mask_p[13] << 24) 826 | (mask_p[12] << 22) | (mask_p[11] << 20) 827 | (mask_p[10] << 18) | (mask_p[ 9] << 16) 828 | (mask_p[ 8] << 14) | (mask_p[ 7] << 12) 829 | (mask_p[ 6] << 10) | (mask_p[ 5] << 8) 830 | (mask_p[ 4] << 6) | (mask_p[ 3] << 4) 831 | (mask_p[ 2] << 2) | (mask_p[ 1] << 0); 832 OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask); 833 OS_REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask); 834 835 tmp_mask = (mask_p[30] << 28) 836 | (mask_p[29] << 26) | (mask_p[28] << 24) 837 | (mask_p[27] << 22) | (mask_p[26] << 20) 838 | (mask_p[25] << 18) | (mask_p[24] << 16) 839 | (mask_p[23] << 14) | (mask_p[22] << 12) 840 | (mask_p[21] << 10) | (mask_p[20] << 8) 841 | (mask_p[19] << 6) | (mask_p[18] << 4) 842 | (mask_p[17] << 2) | (mask_p[16] << 0); 843 OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask); 844 OS_REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask); 845 846 tmp_mask = (mask_p[45] << 28) 847 | (mask_p[44] << 26) | (mask_p[43] << 24) 848 | (mask_p[42] << 22) | (mask_p[41] << 20) 849 | (mask_p[40] << 18) | (mask_p[39] << 16) 850 | (mask_p[38] << 14) | (mask_p[37] << 12) 851 | (mask_p[36] << 10) | (mask_p[35] << 8) 852 | (mask_p[34] << 6) | (mask_p[33] << 4) 853 | (mask_p[32] << 2) | (mask_p[31] << 0); 854 OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask); 855 OS_REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask); 856 857 tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28) 858 | (mask_p[59] << 26) | (mask_p[58] << 24) 859 | (mask_p[57] << 22) | (mask_p[56] << 20) 860 | (mask_p[55] << 18) | (mask_p[54] << 16) 861 | (mask_p[53] << 14) | (mask_p[52] << 12) 862 | (mask_p[51] << 10) | (mask_p[50] << 8) 863 | (mask_p[49] << 6) | (mask_p[48] << 4) 864 | (mask_p[47] << 2) | (mask_p[46] << 0); 865 OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask); 866 OS_REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask); 867 } 868 869 /* 870 * Fill all software cached or static hardware state information. 871 * Return failure if capabilities are to come from EEPROM and 872 * cannot be read. 873 */ 874 static HAL_BOOL 875 ar9280FillCapabilityInfo(struct ath_hal *ah) 876 { 877 HAL_CAPABILITIES *pCap = &AH_PRIVATE(ah)->ah_caps; 878 879 if (!ar5416FillCapabilityInfo(ah)) 880 return AH_FALSE; 881 pCap->halNumGpioPins = 10; 882 pCap->halWowSupport = AH_TRUE; 883 pCap->halWowMatchPatternExact = AH_TRUE; 884 #if 0 885 pCap->halWowMatchPatternDword = AH_TRUE; 886 #endif 887 pCap->halCSTSupport = AH_TRUE; 888 pCap->halRifsRxSupport = AH_TRUE; 889 pCap->halRifsTxSupport = AH_TRUE; 890 pCap->halRtsAggrLimit = 64*1024; /* 802.11n max */ 891 pCap->halExtChanDfsSupport = AH_TRUE; 892 pCap->halUseCombinedRadarRssi = AH_TRUE; 893 #if 0 894 /* XXX bluetooth */ 895 pCap->halBtCoexSupport = AH_TRUE; 896 #endif 897 pCap->halAutoSleepSupport = AH_FALSE; /* XXX? */ 898 pCap->hal4kbSplitTransSupport = AH_FALSE; 899 /* Disable this so Block-ACK works correctly */ 900 pCap->halHasRxSelfLinkedTail = AH_FALSE; 901 pCap->halMbssidAggrSupport = AH_TRUE; 902 pCap->hal4AddrAggrSupport = AH_TRUE; 903 pCap->halSpectralScanSupport = AH_TRUE; 904 905 if (AR_SREV_MERLIN_20(ah)) { 906 pCap->halPSPollBroken = AH_FALSE; 907 /* 908 * This just enables the support; it doesn't 909 * state 5ghz fast clock will always be used. 910 */ 911 pCap->halSupportsFastClock5GHz = AH_TRUE; 912 } 913 pCap->halRxStbcSupport = 1; 914 pCap->halTxStbcSupport = 1; 915 pCap->halEnhancedDfsSupport = AH_TRUE; 916 917 return AH_TRUE; 918 } 919 920 /* 921 * This has been disabled - having the HAL flip chainmasks on/off 922 * when attempting to implement 11n disrupts things. For now, just 923 * leave this flipped off and worry about implementing TX diversity 924 * for legacy and MCS0-7 when 11n is fully functioning. 925 */ 926 HAL_BOOL 927 ar9280SetAntennaSwitch(struct ath_hal *ah, HAL_ANT_SETTING settings) 928 { 929 #define ANTENNA0_CHAINMASK 0x1 930 #define ANTENNA1_CHAINMASK 0x2 931 #if 0 932 struct ath_hal_5416 *ahp = AH5416(ah); 933 934 /* Antenna selection is done by setting the tx/rx chainmasks approp. */ 935 switch (settings) { 936 case HAL_ANT_FIXED_A: 937 /* Enable first antenna only */ 938 ahp->ah_tx_chainmask = ANTENNA0_CHAINMASK; 939 ahp->ah_rx_chainmask = ANTENNA0_CHAINMASK; 940 break; 941 case HAL_ANT_FIXED_B: 942 /* Enable second antenna only, after checking capability */ 943 if (AH_PRIVATE(ah)->ah_caps.halTxChainMask > ANTENNA1_CHAINMASK) 944 ahp->ah_tx_chainmask = ANTENNA1_CHAINMASK; 945 ahp->ah_rx_chainmask = ANTENNA1_CHAINMASK; 946 break; 947 case HAL_ANT_VARIABLE: 948 /* Restore original chainmask settings */ 949 /* XXX */ 950 ahp->ah_tx_chainmask = AR9280_DEFAULT_TXCHAINMASK; 951 ahp->ah_rx_chainmask = AR9280_DEFAULT_RXCHAINMASK; 952 break; 953 } 954 955 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: settings=%d, tx/rx chainmask=%d/%d\n", 956 __func__, settings, ahp->ah_tx_chainmask, ahp->ah_rx_chainmask); 957 958 #endif 959 return AH_TRUE; 960 #undef ANTENNA0_CHAINMASK 961 #undef ANTENNA1_CHAINMASK 962 } 963 964 static const char* 965 ar9280Probe(uint16_t vendorid, uint16_t devid) 966 { 967 if (vendorid == ATHEROS_VENDOR_ID) { 968 if (devid == AR9280_DEVID_PCI) 969 return "Atheros 9220"; 970 if (devid == AR9280_DEVID_PCIE) 971 return "Atheros 9280"; 972 } 973 return AH_NULL; 974 } 975 AH_CHIP(AR9280, ar9280Probe, ar9280Attach); 976