1 /* 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2006 Atheros Communications, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 * 17 * $Id: ar5211_xmit.c,v 1.1.1.1 2008/12/11 04:46:34 alc Exp $ 18 */ 19 #include "opt_ah.h" 20 21 #include "ah.h" 22 #include "ah_internal.h" 23 #include "ah_desc.h" 24 25 #include "ar5211/ar5211.h" 26 #include "ar5211/ar5211reg.h" 27 #include "ar5211/ar5211desc.h" 28 29 /* 30 * Update Tx FIFO trigger level. 31 * 32 * Set bIncTrigLevel to TRUE to increase the trigger level. 33 * Set bIncTrigLevel to FALSE to decrease the trigger level. 34 * 35 * Returns TRUE if the trigger level was updated 36 */ 37 HAL_BOOL 38 ar5211UpdateTxTrigLevel(struct ath_hal *ah, HAL_BOOL bIncTrigLevel) 39 { 40 uint32_t curTrigLevel, txcfg; 41 HAL_INT ints = ar5211GetInterrupts(ah); 42 43 /* 44 * Disable chip interrupts. This is because halUpdateTxTrigLevel 45 * is called from both ISR and non-ISR contexts. 46 */ 47 ar5211SetInterrupts(ah, ints &~ HAL_INT_GLOBAL); 48 txcfg = OS_REG_READ(ah, AR_TXCFG); 49 curTrigLevel = (txcfg & AR_TXCFG_FTRIG_M) >> AR_TXCFG_FTRIG_S; 50 if (bIncTrigLevel){ 51 /* increase the trigger level */ 52 curTrigLevel = curTrigLevel + 53 ((MAX_TX_FIFO_THRESHOLD - curTrigLevel) / 2); 54 } else { 55 /* decrease the trigger level if not already at the minimum */ 56 if (curTrigLevel > MIN_TX_FIFO_THRESHOLD) { 57 /* decrease the trigger level */ 58 curTrigLevel--; 59 } else { 60 /* no update to the trigger level */ 61 /* re-enable chip interrupts */ 62 ar5211SetInterrupts(ah, ints); 63 return AH_FALSE; 64 } 65 } 66 /* Update the trigger level */ 67 OS_REG_WRITE(ah, AR_TXCFG, (txcfg &~ AR_TXCFG_FTRIG_M) | 68 ((curTrigLevel << AR_TXCFG_FTRIG_S) & AR_TXCFG_FTRIG_M)); 69 /* re-enable chip interrupts */ 70 ar5211SetInterrupts(ah, ints); 71 return AH_TRUE; 72 } 73 74 /* 75 * Set the properties of the tx queue with the parameters 76 * from qInfo. The queue must previously have been setup 77 * with a call to ar5211SetupTxQueue. 78 */ 79 HAL_BOOL 80 ar5211SetTxQueueProps(struct ath_hal *ah, int q, const HAL_TXQ_INFO *qInfo) 81 { 82 struct ath_hal_5211 *ahp = AH5211(ah); 83 84 if (q >= HAL_NUM_TX_QUEUES) { 85 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid queue num %u\n", 86 __func__, q); 87 return AH_FALSE; 88 } 89 return ath_hal_setTxQProps(ah, &ahp->ah_txq[q], qInfo); 90 } 91 92 /* 93 * Return the properties for the specified tx queue. 94 */ 95 HAL_BOOL 96 ar5211GetTxQueueProps(struct ath_hal *ah, int q, HAL_TXQ_INFO *qInfo) 97 { 98 struct ath_hal_5211 *ahp = AH5211(ah); 99 100 if (q >= HAL_NUM_TX_QUEUES) { 101 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid queue num %u\n", 102 __func__, q); 103 return AH_FALSE; 104 } 105 return ath_hal_getTxQProps(ah, qInfo, &ahp->ah_txq[q]); 106 } 107 108 /* 109 * Allocate and initialize a tx DCU/QCU combination. 110 */ 111 int 112 ar5211SetupTxQueue(struct ath_hal *ah, HAL_TX_QUEUE type, 113 const HAL_TXQ_INFO *qInfo) 114 { 115 struct ath_hal_5211 *ahp = AH5211(ah); 116 HAL_TX_QUEUE_INFO *qi; 117 int q; 118 119 switch (type) { 120 case HAL_TX_QUEUE_BEACON: 121 q = 9; 122 break; 123 case HAL_TX_QUEUE_CAB: 124 q = 8; 125 break; 126 case HAL_TX_QUEUE_DATA: 127 q = 0; 128 if (ahp->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE) 129 return q; 130 break; 131 default: 132 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad tx queue type %u\n", 133 __func__, type); 134 return -1; 135 } 136 137 HALDEBUG(ah, HAL_DEBUG_TXQUEUE, "%s: queue %u\n", __func__, q); 138 139 qi = &ahp->ah_txq[q]; 140 if (qi->tqi_type != HAL_TX_QUEUE_INACTIVE) { 141 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: tx queue %u already active\n", 142 __func__, q); 143 return -1; 144 } 145 OS_MEMZERO(qi, sizeof(HAL_TX_QUEUE_INFO)); 146 qi->tqi_type = type; 147 if (qInfo == AH_NULL) { 148 /* by default enable OK+ERR+DESC+URN interrupts */ 149 qi->tqi_qflags = 150 HAL_TXQ_TXOKINT_ENABLE 151 | HAL_TXQ_TXERRINT_ENABLE 152 | HAL_TXQ_TXDESCINT_ENABLE 153 | HAL_TXQ_TXURNINT_ENABLE 154 ; 155 qi->tqi_aifs = INIT_AIFS; 156 qi->tqi_cwmin = HAL_TXQ_USEDEFAULT; /* NB: do at reset */ 157 qi->tqi_cwmax = INIT_CWMAX; 158 qi->tqi_shretry = INIT_SH_RETRY; 159 qi->tqi_lgretry = INIT_LG_RETRY; 160 } else 161 (void) ar5211SetTxQueueProps(ah, q, qInfo); 162 return q; 163 } 164 165 /* 166 * Update the h/w interrupt registers to reflect a tx q's configuration. 167 */ 168 static void 169 setTxQInterrupts(struct ath_hal *ah, HAL_TX_QUEUE_INFO *qi) 170 { 171 struct ath_hal_5211 *ahp = AH5211(ah); 172 173 HALDEBUG(ah, HAL_DEBUG_TXQUEUE, 174 "%s: tx ok 0x%x err 0x%x desc 0x%x eol 0x%x urn 0x%x\n", __func__ 175 , ahp->ah_txOkInterruptMask 176 , ahp->ah_txErrInterruptMask 177 , ahp->ah_txDescInterruptMask 178 , ahp->ah_txEolInterruptMask 179 , ahp->ah_txUrnInterruptMask 180 ); 181 182 OS_REG_WRITE(ah, AR_IMR_S0, 183 SM(ahp->ah_txOkInterruptMask, AR_IMR_S0_QCU_TXOK) 184 | SM(ahp->ah_txDescInterruptMask, AR_IMR_S0_QCU_TXDESC) 185 ); 186 OS_REG_WRITE(ah, AR_IMR_S1, 187 SM(ahp->ah_txErrInterruptMask, AR_IMR_S1_QCU_TXERR) 188 | SM(ahp->ah_txEolInterruptMask, AR_IMR_S1_QCU_TXEOL) 189 ); 190 OS_REG_RMW_FIELD(ah, AR_IMR_S2, 191 AR_IMR_S2_QCU_TXURN, ahp->ah_txUrnInterruptMask); 192 } 193 194 195 /* 196 * Free a tx DCU/QCU combination. 197 */ 198 HAL_BOOL 199 ar5211ReleaseTxQueue(struct ath_hal *ah, u_int q) 200 { 201 struct ath_hal_5211 *ahp = AH5211(ah); 202 HAL_TX_QUEUE_INFO *qi; 203 204 if (q >= HAL_NUM_TX_QUEUES) { 205 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid queue num %u\n", 206 __func__, q); 207 return AH_FALSE; 208 } 209 qi = &ahp->ah_txq[q]; 210 if (qi->tqi_type == HAL_TX_QUEUE_INACTIVE) { 211 HALDEBUG(ah, HAL_DEBUG_TXQUEUE, "%s: inactive queue %u\n", 212 __func__, q); 213 return AH_FALSE; 214 } 215 216 HALDEBUG(ah, HAL_DEBUG_TXQUEUE, "%s: release queue %u\n", __func__, q); 217 218 qi->tqi_type = HAL_TX_QUEUE_INACTIVE; 219 ahp->ah_txOkInterruptMask &= ~(1 << q); 220 ahp->ah_txErrInterruptMask &= ~(1 << q); 221 ahp->ah_txDescInterruptMask &= ~(1 << q); 222 ahp->ah_txEolInterruptMask &= ~(1 << q); 223 ahp->ah_txUrnInterruptMask &= ~(1 << q); 224 setTxQInterrupts(ah, qi); 225 226 return AH_TRUE; 227 } 228 229 /* 230 * Set the retry, aifs, cwmin/max, readyTime regs for specified queue 231 */ 232 HAL_BOOL 233 ar5211ResetTxQueue(struct ath_hal *ah, u_int q) 234 { 235 struct ath_hal_5211 *ahp = AH5211(ah); 236 HAL_CHANNEL_INTERNAL *chan = AH_PRIVATE(ah)->ah_curchan; 237 HAL_TX_QUEUE_INFO *qi; 238 uint32_t cwMin, chanCwMin, value; 239 240 if (q >= HAL_NUM_TX_QUEUES) { 241 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid queue num %u\n", 242 __func__, q); 243 return AH_FALSE; 244 } 245 qi = &ahp->ah_txq[q]; 246 if (qi->tqi_type == HAL_TX_QUEUE_INACTIVE) { 247 HALDEBUG(ah, HAL_DEBUG_TXQUEUE, "%s: inactive queue %u\n", 248 __func__, q); 249 return AH_TRUE; /* XXX??? */ 250 } 251 252 if (qi->tqi_cwmin == HAL_TXQ_USEDEFAULT) { 253 /* 254 * Select cwmin according to channel type. 255 * NB: chan can be NULL during attach 256 */ 257 if (chan && IS_CHAN_B(chan)) 258 chanCwMin = INIT_CWMIN_11B; 259 else 260 chanCwMin = INIT_CWMIN; 261 /* make sure that the CWmin is of the form (2^n - 1) */ 262 for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1) 263 ; 264 } else 265 cwMin = qi->tqi_cwmin; 266 267 /* set cwMin/Max and AIFS values */ 268 OS_REG_WRITE(ah, AR_DLCL_IFS(q), 269 SM(cwMin, AR_D_LCL_IFS_CWMIN) 270 | SM(qi->tqi_cwmax, AR_D_LCL_IFS_CWMAX) 271 | SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS)); 272 273 /* Set retry limit values */ 274 OS_REG_WRITE(ah, AR_DRETRY_LIMIT(q), 275 SM(INIT_SSH_RETRY, AR_D_RETRY_LIMIT_STA_SH) 276 | SM(INIT_SLG_RETRY, AR_D_RETRY_LIMIT_STA_LG) 277 | SM(qi->tqi_lgretry, AR_D_RETRY_LIMIT_FR_LG) 278 | SM(qi->tqi_shretry, AR_D_RETRY_LIMIT_FR_SH) 279 ); 280 281 /* enable early termination on the QCU */ 282 OS_REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ); 283 284 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) { 285 /* Configure DCU to use the global sequence count */ 286 OS_REG_WRITE(ah, AR_DMISC(q), AR5311_D_MISC_SEQ_NUM_CONTROL); 287 } 288 /* multiqueue support */ 289 if (qi->tqi_cbrPeriod) { 290 OS_REG_WRITE(ah, AR_QCBRCFG(q), 291 SM(qi->tqi_cbrPeriod,AR_Q_CBRCFG_CBR_INTERVAL) 292 | SM(qi->tqi_cbrOverflowLimit, AR_Q_CBRCFG_CBR_OVF_THRESH)); 293 OS_REG_WRITE(ah, AR_QMISC(q), 294 OS_REG_READ(ah, AR_QMISC(q)) | 295 AR_Q_MISC_FSP_CBR | 296 (qi->tqi_cbrOverflowLimit ? 297 AR_Q_MISC_CBR_EXP_CNTR_LIMIT : 0)); 298 } 299 if (qi->tqi_readyTime) { 300 OS_REG_WRITE(ah, AR_QRDYTIMECFG(q), 301 SM(qi->tqi_readyTime, AR_Q_RDYTIMECFG_INT) | 302 AR_Q_RDYTIMECFG_EN); 303 } 304 if (qi->tqi_burstTime) { 305 OS_REG_WRITE(ah, AR_DCHNTIME(q), 306 SM(qi->tqi_burstTime, AR_D_CHNTIME_DUR) | 307 AR_D_CHNTIME_EN); 308 if (qi->tqi_qflags & HAL_TXQ_RDYTIME_EXP_POLICY_ENABLE) { 309 OS_REG_WRITE(ah, AR_QMISC(q), 310 OS_REG_READ(ah, AR_QMISC(q)) | 311 AR_Q_MISC_RDYTIME_EXP_POLICY); 312 } 313 } 314 315 if (qi->tqi_qflags & HAL_TXQ_BACKOFF_DISABLE) { 316 OS_REG_WRITE(ah, AR_DMISC(q), 317 OS_REG_READ(ah, AR_DMISC(q)) | 318 AR_D_MISC_POST_FR_BKOFF_DIS); 319 } 320 if (qi->tqi_qflags & HAL_TXQ_FRAG_BURST_BACKOFF_ENABLE) { 321 OS_REG_WRITE(ah, AR_DMISC(q), 322 OS_REG_READ(ah, AR_DMISC(q)) | 323 AR_D_MISC_FRAG_BKOFF_EN); 324 } 325 switch (qi->tqi_type) { 326 case HAL_TX_QUEUE_BEACON: 327 /* Configure QCU for beacons */ 328 OS_REG_WRITE(ah, AR_QMISC(q), 329 OS_REG_READ(ah, AR_QMISC(q)) 330 | AR_Q_MISC_FSP_DBA_GATED 331 | AR_Q_MISC_BEACON_USE 332 | AR_Q_MISC_CBR_INCR_DIS1); 333 /* Configure DCU for beacons */ 334 value = (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL << AR_D_MISC_ARB_LOCKOUT_CNTRL_S) 335 | AR_D_MISC_BEACON_USE | AR_D_MISC_POST_FR_BKOFF_DIS; 336 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) 337 value |= AR5311_D_MISC_SEQ_NUM_CONTROL; 338 OS_REG_WRITE(ah, AR_DMISC(q), value); 339 break; 340 case HAL_TX_QUEUE_CAB: 341 /* Configure QCU for CAB (Crap After Beacon) frames */ 342 OS_REG_WRITE(ah, AR_QMISC(q), 343 OS_REG_READ(ah, AR_QMISC(q)) 344 | AR_Q_MISC_FSP_DBA_GATED | AR_Q_MISC_CBR_INCR_DIS1 345 | AR_Q_MISC_CBR_INCR_DIS0 | AR_Q_MISC_RDYTIME_EXP_POLICY); 346 347 value = (ahp->ah_beaconInterval 348 - (ath_hal_sw_beacon_response_time - ath_hal_dma_beacon_response_time) 349 - ath_hal_additional_swba_backoff) * 1024; 350 OS_REG_WRITE(ah, AR_QRDYTIMECFG(q), value | AR_Q_RDYTIMECFG_EN); 351 352 /* Configure DCU for CAB */ 353 value = (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL << AR_D_MISC_ARB_LOCKOUT_CNTRL_S); 354 if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_OAHU) 355 value |= AR5311_D_MISC_SEQ_NUM_CONTROL; 356 OS_REG_WRITE(ah, AR_QMISC(q), value); 357 break; 358 default: 359 /* NB: silence compiler */ 360 break; 361 } 362 363 /* 364 * Always update the secondary interrupt mask registers - this 365 * could be a new queue getting enabled in a running system or 366 * hw getting re-initialized during a reset! 367 * 368 * Since we don't differentiate between tx interrupts corresponding 369 * to individual queues - secondary tx mask regs are always unmasked; 370 * tx interrupts are enabled/disabled for all queues collectively 371 * using the primary mask reg 372 */ 373 if (qi->tqi_qflags & HAL_TXQ_TXOKINT_ENABLE) 374 ahp->ah_txOkInterruptMask |= 1 << q; 375 else 376 ahp->ah_txOkInterruptMask &= ~(1 << q); 377 if (qi->tqi_qflags & HAL_TXQ_TXERRINT_ENABLE) 378 ahp->ah_txErrInterruptMask |= 1 << q; 379 else 380 ahp->ah_txErrInterruptMask &= ~(1 << q); 381 if (qi->tqi_qflags & HAL_TXQ_TXDESCINT_ENABLE) 382 ahp->ah_txDescInterruptMask |= 1 << q; 383 else 384 ahp->ah_txDescInterruptMask &= ~(1 << q); 385 if (qi->tqi_qflags & HAL_TXQ_TXEOLINT_ENABLE) 386 ahp->ah_txEolInterruptMask |= 1 << q; 387 else 388 ahp->ah_txEolInterruptMask &= ~(1 << q); 389 if (qi->tqi_qflags & HAL_TXQ_TXURNINT_ENABLE) 390 ahp->ah_txUrnInterruptMask |= 1 << q; 391 else 392 ahp->ah_txUrnInterruptMask &= ~(1 << q); 393 setTxQInterrupts(ah, qi); 394 395 return AH_TRUE; 396 } 397 398 /* 399 * Get the TXDP for the specified data queue. 400 */ 401 uint32_t 402 ar5211GetTxDP(struct ath_hal *ah, u_int q) 403 { 404 HALASSERT(q < HAL_NUM_TX_QUEUES); 405 return OS_REG_READ(ah, AR_QTXDP(q)); 406 } 407 408 /* 409 * Set the TxDP for the specified tx queue. 410 */ 411 HAL_BOOL 412 ar5211SetTxDP(struct ath_hal *ah, u_int q, uint32_t txdp) 413 { 414 HALASSERT(q < HAL_NUM_TX_QUEUES); 415 HALASSERT(AH5211(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE); 416 417 /* 418 * Make sure that TXE is deasserted before setting the TXDP. If TXE 419 * is still asserted, setting TXDP will have no effect. 420 */ 421 HALASSERT((OS_REG_READ(ah, AR_Q_TXE) & (1 << q)) == 0); 422 423 OS_REG_WRITE(ah, AR_QTXDP(q), txdp); 424 425 return AH_TRUE; 426 } 427 428 /* 429 * Set Transmit Enable bits for the specified queues. 430 */ 431 HAL_BOOL 432 ar5211StartTxDma(struct ath_hal *ah, u_int q) 433 { 434 HALASSERT(q < HAL_NUM_TX_QUEUES); 435 HALASSERT(AH5211(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE); 436 437 /* Check that queue is not already active */ 438 HALASSERT((OS_REG_READ(ah, AR_Q_TXD) & (1<<q)) == 0); 439 440 HALDEBUG(ah, HAL_DEBUG_TXQUEUE, "%s: queue %u\n", __func__, q); 441 442 /* Check to be sure we're not enabling a q that has its TXD bit set. */ 443 HALASSERT((OS_REG_READ(ah, AR_Q_TXD) & (1 << q)) == 0); 444 445 OS_REG_WRITE(ah, AR_Q_TXE, 1 << q); 446 return AH_TRUE; 447 } 448 449 /* 450 * Return the number of frames pending on the specified queue. 451 */ 452 uint32_t 453 ar5211NumTxPending(struct ath_hal *ah, u_int q) 454 { 455 uint32_t n; 456 457 HALASSERT(q < HAL_NUM_TX_QUEUES); 458 HALASSERT(AH5211(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE); 459 460 n = OS_REG_READ(ah, AR_QSTS(q)) & AR_Q_STS_PEND_FR_CNT_M; 461 /* 462 * Pending frame count (PFC) can momentarily go to zero 463 * while TXE remains asserted. In other words a PFC of 464 * zero is not sufficient to say that the queue has stopped. 465 */ 466 if (n == 0 && (OS_REG_READ(ah, AR_Q_TXE) & (1<<q))) 467 n = 1; /* arbitrarily pick 1 */ 468 return n; 469 } 470 471 /* 472 * Stop transmit on the specified queue 473 */ 474 HAL_BOOL 475 ar5211StopTxDma(struct ath_hal *ah, u_int q) 476 { 477 int i; 478 479 HALASSERT(q < HAL_NUM_TX_QUEUES); 480 HALASSERT(AH5211(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE); 481 482 OS_REG_WRITE(ah, AR_Q_TXD, 1<<q); 483 for (i = 0; i < 10000; i++) { 484 if (ar5211NumTxPending(ah, q) == 0) 485 break; 486 OS_DELAY(10); 487 } 488 OS_REG_WRITE(ah, AR_Q_TXD, 0); 489 490 return (i < 10000); 491 } 492 493 /* 494 * Descriptor Access Functions 495 */ 496 497 #define VALID_PKT_TYPES \ 498 ((1<<HAL_PKT_TYPE_NORMAL)|(1<<HAL_PKT_TYPE_ATIM)|\ 499 (1<<HAL_PKT_TYPE_PSPOLL)|(1<<HAL_PKT_TYPE_PROBE_RESP)|\ 500 (1<<HAL_PKT_TYPE_BEACON)) 501 #define isValidPktType(_t) ((1<<(_t)) & VALID_PKT_TYPES) 502 #define VALID_TX_RATES \ 503 ((1<<0x0b)|(1<<0x0f)|(1<<0x0a)|(1<<0x0e)|(1<<0x09)|(1<<0x0d)|\ 504 (1<<0x08)|(1<<0x0c)|(1<<0x1b)|(1<<0x1a)|(1<<0x1e)|(1<<0x19)|\ 505 (1<<0x1d)|(1<<0x18)|(1<<0x1c)) 506 #define isValidTxRate(_r) ((1<<(_r)) & VALID_TX_RATES) 507 508 HAL_BOOL 509 ar5211SetupTxDesc(struct ath_hal *ah, struct ath_desc *ds, 510 u_int pktLen, 511 u_int hdrLen, 512 HAL_PKT_TYPE type, 513 u_int txPower, 514 u_int txRate0, u_int txTries0, 515 u_int keyIx, 516 u_int antMode, 517 u_int flags, 518 u_int rtsctsRate, 519 u_int rtsctsDuration, 520 u_int compicvLen, 521 u_int compivLen, 522 u_int comp) 523 { 524 struct ar5211_desc *ads = AR5211DESC(ds); 525 526 (void) hdrLen; 527 (void) txPower; 528 (void) rtsctsRate; (void) rtsctsDuration; 529 530 HALASSERT(txTries0 != 0); 531 HALASSERT(isValidPktType(type)); 532 HALASSERT(isValidTxRate(txRate0)); 533 /* XXX validate antMode */ 534 535 ads->ds_ctl0 = (pktLen & AR_FrameLen) 536 | (txRate0 << AR_XmitRate_S) 537 | (antMode << AR_AntModeXmit_S) 538 | (flags & HAL_TXDESC_CLRDMASK ? AR_ClearDestMask : 0) 539 | (flags & HAL_TXDESC_INTREQ ? AR_TxInterReq : 0) 540 | (flags & HAL_TXDESC_RTSENA ? AR_RTSCTSEnable : 0) 541 | (flags & HAL_TXDESC_VEOL ? AR_VEOL : 0) 542 ; 543 ads->ds_ctl1 = (type << 26) 544 | (flags & HAL_TXDESC_NOACK ? AR_NoAck : 0) 545 ; 546 547 if (keyIx != HAL_TXKEYIX_INVALID) { 548 ads->ds_ctl1 |= 549 (keyIx << AR_EncryptKeyIdx_S) & AR_EncryptKeyIdx; 550 ads->ds_ctl0 |= AR_EncryptKeyValid; 551 } 552 return AH_TRUE; 553 #undef RATE 554 } 555 556 HAL_BOOL 557 ar5211SetupXTxDesc(struct ath_hal *ah, struct ath_desc *ds, 558 u_int txRate1, u_int txTries1, 559 u_int txRate2, u_int txTries2, 560 u_int txRate3, u_int txTries3) 561 { 562 (void) ah; (void) ds; 563 (void) txRate1; (void) txTries1; 564 (void) txRate2; (void) txTries2; 565 (void) txRate3; (void) txTries3; 566 return AH_FALSE; 567 } 568 569 void 570 ar5211IntrReqTxDesc(struct ath_hal *ah, struct ath_desc *ds) 571 { 572 struct ar5211_desc *ads = AR5211DESC(ds); 573 574 ads->ds_ctl0 |= AR_TxInterReq; 575 } 576 577 HAL_BOOL 578 ar5211FillTxDesc(struct ath_hal *ah, struct ath_desc *ds, 579 u_int segLen, HAL_BOOL firstSeg, HAL_BOOL lastSeg, 580 const struct ath_desc *ds0) 581 { 582 struct ar5211_desc *ads = AR5211DESC(ds); 583 584 HALASSERT((segLen &~ AR_BufLen) == 0); 585 586 if (firstSeg) { 587 /* 588 * First descriptor, don't clobber xmit control data 589 * setup by ar5211SetupTxDesc. 590 */ 591 ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_More); 592 } else if (lastSeg) { /* !firstSeg && lastSeg */ 593 /* 594 * Last descriptor in a multi-descriptor frame, 595 * copy the transmit parameters from the first 596 * frame for processing on completion. 597 */ 598 ads->ds_ctl0 = AR5211DESC_CONST(ds0)->ds_ctl0; 599 ads->ds_ctl1 = segLen; 600 } else { /* !firstSeg && !lastSeg */ 601 /* 602 * Intermediate descriptor in a multi-descriptor frame. 603 */ 604 ads->ds_ctl0 = 0; 605 ads->ds_ctl1 = segLen | AR_More; 606 } 607 ads->ds_status0 = ads->ds_status1 = 0; 608 return AH_TRUE; 609 } 610 611 /* 612 * Processing of HW TX descriptor. 613 */ 614 HAL_STATUS 615 ar5211ProcTxDesc(struct ath_hal *ah, 616 struct ath_desc *ds, struct ath_tx_status *ts) 617 { 618 struct ar5211_desc *ads = AR5211DESC(ds); 619 620 if ((ads->ds_status1 & AR_Done) == 0) 621 return HAL_EINPROGRESS; 622 623 /* Update software copies of the HW status */ 624 ts->ts_seqnum = MS(ads->ds_status1, AR_SeqNum); 625 ts->ts_tstamp = MS(ads->ds_status0, AR_SendTimestamp); 626 ts->ts_status = 0; 627 if ((ads->ds_status0 & AR_FrmXmitOK) == 0) { 628 if (ads->ds_status0 & AR_ExcessiveRetries) 629 ts->ts_status |= HAL_TXERR_XRETRY; 630 if (ads->ds_status0 & AR_Filtered) 631 ts->ts_status |= HAL_TXERR_FILT; 632 if (ads->ds_status0 & AR_FIFOUnderrun) 633 ts->ts_status |= HAL_TXERR_FIFO; 634 } 635 ts->ts_rate = MS(ads->ds_ctl0, AR_XmitRate); 636 ts->ts_rssi = MS(ads->ds_status1, AR_AckSigStrength); 637 ts->ts_shortretry = MS(ads->ds_status0, AR_ShortRetryCnt); 638 ts->ts_longretry = MS(ads->ds_status0, AR_LongRetryCnt); 639 ts->ts_virtcol = MS(ads->ds_status0, AR_VirtCollCnt); 640 ts->ts_antenna = 0; /* NB: don't know */ 641 ts->ts_finaltsi = 0; 642 /* 643 * NB: the number of retries is one less than it should be. 644 * Also, 0 retries and 1 retry are both reported as 0 retries. 645 */ 646 if (ts->ts_shortretry > 0) 647 ts->ts_shortretry++; 648 if (ts->ts_longretry > 0) 649 ts->ts_longretry++; 650 651 return HAL_OK; 652 } 653 654 /* 655 * Determine which tx queues need interrupt servicing. 656 * STUB. 657 */ 658 void 659 ar5211GetTxIntrQueue(struct ath_hal *ah, uint32_t *txqs) 660 { 661 return; 662 } 663
Indexes created Mon Sep 22 21:09:42 GMT 2025