ar5211_attach.c revision 188970
1/* 2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2006 Atheros Communications, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 * 17 * $FreeBSD: head/sys/dev/ath/ath_hal/ar5211/ar5211_attach.c 188970 2009-02-23 23:48:17Z sam $ 18 */ 19#include "opt_ah.h" 20 21#include "ah.h" 22#include "ah_internal.h" 23#include "ah_devid.h" 24 25#include "ar5211/ar5211.h" 26#include "ar5211/ar5211reg.h" 27#include "ar5211/ar5211phy.h" 28 29#include "ah_eeprom_v3.h" 30 31static HAL_BOOL ar5211GetChannelEdges(struct ath_hal *ah, 32 uint16_t flags, uint16_t *low, uint16_t *high); 33static HAL_BOOL ar5211GetChipPowerLimits(struct ath_hal *ah, 34 struct ieee80211_channel *chan); 35 36static const struct ath_hal_private ar5211hal = {{ 37 .ah_magic = AR5211_MAGIC, 38 .ah_abi = HAL_ABI_VERSION, 39 40 .ah_getRateTable = ar5211GetRateTable, 41 .ah_detach = ar5211Detach, 42 43 /* Reset Functions */ 44 .ah_reset = ar5211Reset, 45 .ah_phyDisable = ar5211PhyDisable, 46 .ah_disable = ar5211Disable, 47 .ah_setPCUConfig = ar5211SetPCUConfig, 48 .ah_perCalibration = ar5211PerCalibration, 49 .ah_perCalibrationN = ar5211PerCalibrationN, 50 .ah_resetCalValid = ar5211ResetCalValid, 51 .ah_setTxPowerLimit = ar5211SetTxPowerLimit, 52 .ah_getChanNoise = ath_hal_getChanNoise, 53 54 /* Transmit functions */ 55 .ah_updateTxTrigLevel = ar5211UpdateTxTrigLevel, 56 .ah_setupTxQueue = ar5211SetupTxQueue, 57 .ah_setTxQueueProps = ar5211SetTxQueueProps, 58 .ah_getTxQueueProps = ar5211GetTxQueueProps, 59 .ah_releaseTxQueue = ar5211ReleaseTxQueue, 60 .ah_resetTxQueue = ar5211ResetTxQueue, 61 .ah_getTxDP = ar5211GetTxDP, 62 .ah_setTxDP = ar5211SetTxDP, 63 .ah_numTxPending = ar5211NumTxPending, 64 .ah_startTxDma = ar5211StartTxDma, 65 .ah_stopTxDma = ar5211StopTxDma, 66 .ah_setupTxDesc = ar5211SetupTxDesc, 67 .ah_setupXTxDesc = ar5211SetupXTxDesc, 68 .ah_fillTxDesc = ar5211FillTxDesc, 69 .ah_procTxDesc = ar5211ProcTxDesc, 70 .ah_getTxIntrQueue = ar5211GetTxIntrQueue, 71 .ah_reqTxIntrDesc = ar5211IntrReqTxDesc, 72 73 /* RX Functions */ 74 .ah_getRxDP = ar5211GetRxDP, 75 .ah_setRxDP = ar5211SetRxDP, 76 .ah_enableReceive = ar5211EnableReceive, 77 .ah_stopDmaReceive = ar5211StopDmaReceive, 78 .ah_startPcuReceive = ar5211StartPcuReceive, 79 .ah_stopPcuReceive = ar5211StopPcuReceive, 80 .ah_setMulticastFilter = ar5211SetMulticastFilter, 81 .ah_setMulticastFilterIndex = ar5211SetMulticastFilterIndex, 82 .ah_clrMulticastFilterIndex = ar5211ClrMulticastFilterIndex, 83 .ah_getRxFilter = ar5211GetRxFilter, 84 .ah_setRxFilter = ar5211SetRxFilter, 85 .ah_setupRxDesc = ar5211SetupRxDesc, 86 .ah_procRxDesc = ar5211ProcRxDesc, 87 .ah_rxMonitor = ar5211AniPoll, 88 .ah_procMibEvent = ar5211MibEvent, 89 90 /* Misc Functions */ 91 .ah_getCapability = ar5211GetCapability, 92 .ah_setCapability = ar5211SetCapability, 93 .ah_getDiagState = ar5211GetDiagState, 94 .ah_getMacAddress = ar5211GetMacAddress, 95 .ah_setMacAddress = ar5211SetMacAddress, 96 .ah_getBssIdMask = ar5211GetBssIdMask, 97 .ah_setBssIdMask = ar5211SetBssIdMask, 98 .ah_setRegulatoryDomain = ar5211SetRegulatoryDomain, 99 .ah_setLedState = ar5211SetLedState, 100 .ah_writeAssocid = ar5211WriteAssocid, 101 .ah_gpioCfgInput = ar5211GpioCfgInput, 102 .ah_gpioCfgOutput = ar5211GpioCfgOutput, 103 .ah_gpioGet = ar5211GpioGet, 104 .ah_gpioSet = ar5211GpioSet, 105 .ah_gpioSetIntr = ar5211GpioSetIntr, 106 .ah_getTsf32 = ar5211GetTsf32, 107 .ah_getTsf64 = ar5211GetTsf64, 108 .ah_resetTsf = ar5211ResetTsf, 109 .ah_detectCardPresent = ar5211DetectCardPresent, 110 .ah_updateMibCounters = ar5211UpdateMibCounters, 111 .ah_getRfGain = ar5211GetRfgain, 112 .ah_getDefAntenna = ar5211GetDefAntenna, 113 .ah_setDefAntenna = ar5211SetDefAntenna, 114 .ah_getAntennaSwitch = ar5211GetAntennaSwitch, 115 .ah_setAntennaSwitch = ar5211SetAntennaSwitch, 116 .ah_setSifsTime = ar5211SetSifsTime, 117 .ah_getSifsTime = ar5211GetSifsTime, 118 .ah_setSlotTime = ar5211SetSlotTime, 119 .ah_getSlotTime = ar5211GetSlotTime, 120 .ah_setAckTimeout = ar5211SetAckTimeout, 121 .ah_getAckTimeout = ar5211GetAckTimeout, 122 .ah_setAckCTSRate = ar5211SetAckCTSRate, 123 .ah_getAckCTSRate = ar5211GetAckCTSRate, 124 .ah_setCTSTimeout = ar5211SetCTSTimeout, 125 .ah_getCTSTimeout = ar5211GetCTSTimeout, 126 .ah_setDecompMask = ar5211SetDecompMask, 127 .ah_setCoverageClass = ar5211SetCoverageClass, 128 129 /* Key Cache Functions */ 130 .ah_getKeyCacheSize = ar5211GetKeyCacheSize, 131 .ah_resetKeyCacheEntry = ar5211ResetKeyCacheEntry, 132 .ah_isKeyCacheEntryValid = ar5211IsKeyCacheEntryValid, 133 .ah_setKeyCacheEntry = ar5211SetKeyCacheEntry, 134 .ah_setKeyCacheEntryMac = ar5211SetKeyCacheEntryMac, 135 136 /* Power Management Functions */ 137 .ah_setPowerMode = ar5211SetPowerMode, 138 .ah_getPowerMode = ar5211GetPowerMode, 139 140 /* Beacon Functions */ 141 .ah_setBeaconTimers = ar5211SetBeaconTimers, 142 .ah_beaconInit = ar5211BeaconInit, 143 .ah_setStationBeaconTimers = ar5211SetStaBeaconTimers, 144 .ah_resetStationBeaconTimers = ar5211ResetStaBeaconTimers, 145 146 /* Interrupt Functions */ 147 .ah_isInterruptPending = ar5211IsInterruptPending, 148 .ah_getPendingInterrupts = ar5211GetPendingInterrupts, 149 .ah_getInterrupts = ar5211GetInterrupts, 150 .ah_setInterrupts = ar5211SetInterrupts }, 151 152 .ah_getChannelEdges = ar5211GetChannelEdges, 153 .ah_getWirelessModes = ar5211GetWirelessModes, 154 .ah_eepromRead = ar5211EepromRead, 155#ifdef AH_SUPPORT_WRITE_EEPROM 156 .ah_eepromWrite = ar5211EepromWrite, 157#endif 158 .ah_getChipPowerLimits = ar5211GetChipPowerLimits, 159}; 160 161static HAL_BOOL ar5211ChipTest(struct ath_hal *); 162static HAL_BOOL ar5211FillCapabilityInfo(struct ath_hal *ah); 163 164/* 165 * Return the revsion id for the radio chip. This 166 * fetched via the PHY. 167 */ 168static uint32_t 169ar5211GetRadioRev(struct ath_hal *ah) 170{ 171 uint32_t val; 172 int i; 173 174 OS_REG_WRITE(ah, (AR_PHY_BASE + (0x34 << 2)), 0x00001c16); 175 for (i = 0; i < 8; i++) 176 OS_REG_WRITE(ah, (AR_PHY_BASE + (0x20 << 2)), 0x00010000); 177 val = (OS_REG_READ(ah, AR_PHY_BASE + (256 << 2)) >> 24) & 0xff; 178 val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4); 179 return ath_hal_reverseBits(val, 8); 180} 181 182/* 183 * Attach for an AR5211 part. 184 */ 185struct ath_hal * 186ar5211Attach(uint16_t devid, HAL_SOFTC sc, 187 HAL_BUS_TAG st, HAL_BUS_HANDLE sh, HAL_STATUS *status) 188{ 189#define N(a) (sizeof(a)/sizeof(a[0])) 190 struct ath_hal_5211 *ahp; 191 struct ath_hal *ah; 192 uint32_t val; 193 uint16_t eeval; 194 HAL_STATUS ecode; 195 196 HALDEBUG(AH_NULL, HAL_DEBUG_ATTACH, "%s: sc %p st %p sh %p\n", 197 __func__, sc, (void*) st, (void*) sh); 198 199 /* NB: memory is returned zero'd */ 200 ahp = ath_hal_malloc(sizeof (struct ath_hal_5211)); 201 if (ahp == AH_NULL) { 202 HALDEBUG(AH_NULL, HAL_DEBUG_ANY, 203 "%s: cannot allocate memory for state block\n", __func__); 204 ecode = HAL_ENOMEM; 205 goto bad; 206 } 207 ah = &ahp->ah_priv.h; 208 /* set initial values */ 209 OS_MEMCPY(&ahp->ah_priv, &ar5211hal, sizeof(struct ath_hal_private)); 210 ah->ah_sc = sc; 211 ah->ah_st = st; 212 ah->ah_sh = sh; 213 214 ah->ah_devid = devid; /* NB: for AH_DEBUG_ALQ */ 215 AH_PRIVATE(ah)->ah_devid = devid; 216 AH_PRIVATE(ah)->ah_subvendorid = 0; /* XXX */ 217 218 AH_PRIVATE(ah)->ah_powerLimit = MAX_RATE_POWER; 219 AH_PRIVATE(ah)->ah_tpScale = HAL_TP_SCALE_MAX; /* no scaling */ 220 221 ahp->ah_diversityControl = HAL_ANT_VARIABLE; 222 ahp->ah_staId1Defaults = 0; 223 ahp->ah_rssiThr = INIT_RSSI_THR; 224 ahp->ah_sifstime = (u_int) -1; 225 ahp->ah_slottime = (u_int) -1; 226 ahp->ah_acktimeout = (u_int) -1; 227 ahp->ah_ctstimeout = (u_int) -1; 228 229 if (!ar5211ChipReset(ah, AH_NULL)) { /* reset chip */ 230 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__); 231 ecode = HAL_EIO; 232 goto bad; 233 } 234 if (AH_PRIVATE(ah)->ah_devid == AR5211_FPGA11B) { 235 /* set it back to OFDM mode to be able to read analog rev id */ 236 OS_REG_WRITE(ah, AR5211_PHY_MODE, AR5211_PHY_MODE_OFDM); 237 OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_44); 238 OS_DELAY(1000); 239 } 240 241 /* Read Revisions from Chips */ 242 val = OS_REG_READ(ah, AR_SREV) & AR_SREV_ID_M; 243 AH_PRIVATE(ah)->ah_macVersion = val >> AR_SREV_ID_S; 244 AH_PRIVATE(ah)->ah_macRev = val & AR_SREV_REVISION_M; 245 246 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_MAUI_2 || 247 AH_PRIVATE(ah)->ah_macVersion > AR_SREV_VERSION_OAHU) { 248 HALDEBUG(ah, HAL_DEBUG_ANY, 249 "%s: Mac Chip Rev 0x%x is not supported by this driver\n", 250 __func__, AH_PRIVATE(ah)->ah_macVersion); 251 ecode = HAL_ENOTSUPP; 252 goto bad; 253 } 254 255 AH_PRIVATE(ah)->ah_phyRev = OS_REG_READ(ah, AR_PHY_CHIP_ID); 256 257 if (!ar5211ChipTest(ah)) { 258 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: hardware self-test failed\n", 259 __func__); 260 ecode = HAL_ESELFTEST; 261 goto bad; 262 } 263 264 /* Set correct Baseband to analog shift setting to access analog chips. */ 265 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) { 266 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000007); 267 } else { 268 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000047); 269 } 270 OS_DELAY(2000); 271 272 /* Read Radio Chip Rev Extract */ 273 AH_PRIVATE(ah)->ah_analog5GhzRev = ar5211GetRadioRev(ah); 274 if ((AH_PRIVATE(ah)->ah_analog5GhzRev & 0xf0) != RAD5_SREV_MAJOR) { 275 HALDEBUG(ah, HAL_DEBUG_ANY, 276 "%s: 5G Radio Chip Rev 0x%02X is not supported by this " 277 "driver\n", __func__, AH_PRIVATE(ah)->ah_analog5GhzRev); 278 ecode = HAL_ENOTSUPP; 279 goto bad; 280 } 281 282 val = (OS_REG_READ(ah, AR_PCICFG) & AR_PCICFG_EEPROM_SIZE_M) >> 283 AR_PCICFG_EEPROM_SIZE_S; 284 if (val != AR_PCICFG_EEPROM_SIZE_16K) { 285 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unsupported EEPROM size " 286 "%u (0x%x) found\n", __func__, val, val); 287 ecode = HAL_EESIZE; 288 goto bad; 289 } 290 ecode = ath_hal_legacyEepromAttach(ah); 291 if (ecode != HAL_OK) { 292 goto bad; 293 } 294 295 /* If Bmode and AR5211, verify 2.4 analog exists */ 296 if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU && 297 ath_hal_eepromGetFlag(ah, AR_EEP_BMODE)) { 298 /* Set correct Baseband to analog shift setting to access analog chips. */ 299 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00004007); 300 OS_DELAY(2000); 301 AH_PRIVATE(ah)->ah_analog2GhzRev = ar5211GetRadioRev(ah); 302 303 /* Set baseband for 5GHz chip */ 304 OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000007); 305 OS_DELAY(2000); 306 if ((AH_PRIVATE(ah)->ah_analog2GhzRev & 0xF0) != RAD2_SREV_MAJOR) { 307 HALDEBUG(ah, HAL_DEBUG_ANY, 308 "%s: 2G Radio Chip Rev 0x%x is not supported by " 309 "this driver\n", __func__, 310 AH_PRIVATE(ah)->ah_analog2GhzRev); 311 ecode = HAL_ENOTSUPP; 312 goto bad; 313 } 314 } else { 315 ath_hal_eepromSet(ah, AR_EEP_BMODE, AH_FALSE); 316 } 317 318 ecode = ath_hal_eepromGet(ah, AR_EEP_REGDMN_0, &eeval); 319 if (ecode != HAL_OK) { 320 HALDEBUG(ah, HAL_DEBUG_ANY, 321 "%s: cannot read regulatory domain from EEPROM\n", 322 __func__); 323 goto bad; 324 } 325 AH_PRIVATE(ah)->ah_currentRD = eeval; 326 AH_PRIVATE(ah)->ah_getNfAdjust = ar5211GetNfAdjust; 327 328 /* 329 * Got everything we need now to setup the capabilities. 330 */ 331 (void) ar5211FillCapabilityInfo(ah); 332 333 /* Initialize gain ladder thermal calibration structure */ 334 ar5211InitializeGainValues(ah); 335 336 ecode = ath_hal_eepromGet(ah, AR_EEP_MACADDR, ahp->ah_macaddr); 337 if (ecode != HAL_OK) { 338 HALDEBUG(ah, HAL_DEBUG_ANY, 339 "%s: error getting mac address from EEPROM\n", __func__); 340 goto bad; 341 } 342 343 HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s: return\n", __func__); 344 345 return ah; 346bad: 347 if (ahp) 348 ar5211Detach((struct ath_hal *) ahp); 349 if (status) 350 *status = ecode; 351 return AH_NULL; 352#undef N 353} 354 355void 356ar5211Detach(struct ath_hal *ah) 357{ 358 HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s:\n", __func__); 359 360 HALASSERT(ah != AH_NULL); 361 HALASSERT(ah->ah_magic == AR5211_MAGIC); 362 363 ath_hal_eepromDetach(ah); 364 ath_hal_free(ah); 365} 366 367static HAL_BOOL 368ar5211ChipTest(struct ath_hal *ah) 369{ 370 uint32_t regAddr[2] = { AR_STA_ID0, AR_PHY_BASE+(8 << 2) }; 371 uint32_t regHold[2]; 372 uint32_t patternData[4] = 373 { 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999 }; 374 int i, j; 375 376 /* Test PHY & MAC registers */ 377 for (i = 0; i < 2; i++) { 378 uint32_t addr = regAddr[i]; 379 uint32_t wrData, rdData; 380 381 regHold[i] = OS_REG_READ(ah, addr); 382 for (j = 0; j < 0x100; j++) { 383 wrData = (j << 16) | j; 384 OS_REG_WRITE(ah, addr, wrData); 385 rdData = OS_REG_READ(ah, addr); 386 if (rdData != wrData) { 387 HALDEBUG(ah, HAL_DEBUG_ANY, 388"%s: address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n", 389 __func__, addr, wrData, rdData); 390 return AH_FALSE; 391 } 392 } 393 for (j = 0; j < 4; j++) { 394 wrData = patternData[j]; 395 OS_REG_WRITE(ah, addr, wrData); 396 rdData = OS_REG_READ(ah, addr); 397 if (wrData != rdData) { 398 HALDEBUG(ah, HAL_DEBUG_ANY, 399"%s: address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n", 400 __func__, addr, wrData, rdData); 401 return AH_FALSE; 402 } 403 } 404 OS_REG_WRITE(ah, regAddr[i], regHold[i]); 405 } 406 OS_DELAY(100); 407 return AH_TRUE; 408} 409 410/* 411 * Store the channel edges for the requested operational mode 412 */ 413static HAL_BOOL 414ar5211GetChannelEdges(struct ath_hal *ah, 415 uint16_t flags, uint16_t *low, uint16_t *high) 416{ 417 if (flags & IEEE80211_CHAN_5GHZ) { 418 *low = 4920; 419 *high = 6100; 420 return AH_TRUE; 421 } 422 if (flags & IEEE80211_CHAN_2GHZ && 423 ath_hal_eepromGetFlag(ah, AR_EEP_BMODE)) { 424 *low = 2312; 425 *high = 2732; 426 return AH_TRUE; 427 } 428 return AH_FALSE; 429} 430 431static HAL_BOOL 432ar5211GetChipPowerLimits(struct ath_hal *ah, struct ieee80211_channel *chan) 433{ 434 /* XXX fill in, this is just a placeholder */ 435 HALDEBUG(ah, HAL_DEBUG_ATTACH, 436 "%s: no min/max power for %u/0x%x\n", 437 __func__, chan->ic_freq, chan->ic_flags); 438 chan->ic_maxpower = MAX_RATE_POWER; 439 chan->ic_minpower = 0; 440 return AH_TRUE; 441} 442 443/* 444 * Fill all software cached or static hardware state information. 445 */ 446static HAL_BOOL 447ar5211FillCapabilityInfo(struct ath_hal *ah) 448{ 449 struct ath_hal_private *ahpriv = AH_PRIVATE(ah); 450 HAL_CAPABILITIES *pCap = &ahpriv->ah_caps; 451 452 /* Construct wireless mode from EEPROM */ 453 pCap->halWirelessModes = 0; 454 if (ath_hal_eepromGetFlag(ah, AR_EEP_AMODE)) { 455 pCap->halWirelessModes |= HAL_MODE_11A; 456 if (!ath_hal_eepromGetFlag(ah, AR_EEP_TURBO5DISABLE)) 457 pCap->halWirelessModes |= HAL_MODE_TURBO; 458 } 459 if (ath_hal_eepromGetFlag(ah, AR_EEP_BMODE)) 460 pCap->halWirelessModes |= HAL_MODE_11B; 461 462 pCap->halLow2GhzChan = 2312; 463 pCap->halHigh2GhzChan = 2732; 464 pCap->halLow5GhzChan = 4920; 465 pCap->halHigh5GhzChan = 6100; 466 467 pCap->halChanSpreadSupport = AH_TRUE; 468 pCap->halSleepAfterBeaconBroken = AH_TRUE; 469 pCap->halPSPollBroken = AH_TRUE; 470 pCap->halVEOLSupport = AH_TRUE; 471 472 pCap->halTotalQueues = HAL_NUM_TX_QUEUES; 473 pCap->halKeyCacheSize = 128; 474 475 /* XXX not needed */ 476 pCap->halChanHalfRate = AH_FALSE; 477 pCap->halChanQuarterRate = AH_FALSE; 478 479 if (ath_hal_eepromGetFlag(ah, AR_EEP_RFKILL) && 480 ath_hal_eepromGet(ah, AR_EEP_RFSILENT, &ahpriv->ah_rfsilent) == HAL_OK) { 481 /* NB: enabled by default */ 482 ahpriv->ah_rfkillEnabled = AH_TRUE; 483 pCap->halRfSilentSupport = AH_TRUE; 484 } 485 486 pCap->halTstampPrecision = 13; 487 488 /* XXX might be ok w/ some chip revs */ 489 ahpriv->ah_rxornIsFatal = AH_TRUE; 490 return AH_TRUE; 491} 492 493static const char* 494ar5211Probe(uint16_t vendorid, uint16_t devid) 495{ 496 if (vendorid == ATHEROS_VENDOR_ID) { 497 if (devid == AR5211_DEVID || devid == AR5311_DEVID || 498 devid == AR5211_DEFAULT) 499 return "Atheros 5211"; 500 if (devid == AR5211_FPGA11B) 501 return "Atheros 5211 (FPGA)"; 502 } 503 return AH_NULL; 504} 505AH_CHIP(AR5211, ar5211Probe, ar5211Attach); 506