2 * Copyright (c) 2013 Qualcomm Atheros, Inc.
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38 #include "ah_internal.h"
40 #include "ar5416reg.h"
41 #include "ar5416desc.h"
43 #define N(a) (sizeof(a)/sizeof(a[0]))
44 #define AR_INTR_SPURIOUS 0xffffffff
45 #define ar5416_desc ar5416_desc_20
46 #define AR5416_ABORT_LOOPS 1000
47 #define AR5416_ABORT_WAIT 5
48 #define AR5416DESC AR5416DESC_20
49 #define AR5416DESC_CONST AR5416DESC_CONST_20
55 static const struct ath_hal_private ar5416hal_10 = {{
56 .ah_getRateTable = ar5416GetRateTable,
57 .ah_detach = ar5416Detach,
59 /* Transmit functions */
60 .ah_updateTxTrigLevel = ar5416UpdateTxTrigLevel,
61 .ah_getTxDP = ar5416GetTxDP,
62 .ah_setTxDP = ar5416SetTxDP,
63 .ah_numTxPending = ar5416NumTxPending,
64 .ah_startTxDma = ar5416StartTxDma,
65 .ah_stopTxDma = ar5416StopTxDma,
67 .ah_getTxIntrQueue = ar5416GetTxIntrQueue,
68 .ah_abortTxDma = ar5416AbortTxDma,
71 .ah_getCapability = ar5416GetCapability,
72 .ah_getTsf32 = ar5416GetTsf32,
73 .ah_getTsf64 = ar5416GetTsf64,
74 .ah_resetTsf = ar5416ResetTsf,
75 .ah_setRxFilter = ar5416SetRxFilter,
78 .ah_getRxDP = ar5416GetRxDP,
79 .ah_setRxDP = ar5416SetRxDP,
80 .ah_stopDmaReceive = ar5416StopDmaReceive,
81 .ah_enableReceive = ar5416EnableReceive,
82 .ah_startPcuReceive = ar5416StartPcuReceive,
83 .ah_stopPcuReceive = ar5416StopPcuReceive,
85 /* Interrupt Functions */
86 .ah_isInterruptPending = ar5416IsInterruptPending,
87 .ah_getPendingInterrupts = ar5416GetPendingInterrupts,
88 .ah_getInterrupts = ar5416GetInterrupts,
89 .ah_setInterrupts = ar5416SetInterrupts,
93 void ar5416Detach(struct ath_hal *ah)
95 HALASSERT(ah != AH_NULL);
100 ar5416Attach(a_uint32_t devid,HAL_SOFTC sc, adf_os_device_t dev,
101 a_uint32_t flags, HAL_STATUS *status)
103 struct ath_hal_5416 *ahp;
106 ahp = ath_hal_malloc(sizeof (struct ath_hal_5416));
107 if (ahp == AH_NULL) {
108 *status = HAL_ENOMEM;
111 ah = &ahp->ah_priv.h;
113 OS_MEMCPY(&ahp->ah_priv, &ar5416hal_10, sizeof(struct ath_hal_private));
118 /* If its a Owl 2.0 chip then change the hal structure to
119 point to the Owl 2.0 ar5416_hal_20 structure */
121 ah->ah_set11nTxDesc = ar5416Set11nTxDesc_20;
122 ah->ah_set11nRateScenario = ar5416Set11nRateScenario_20;
123 ah->ah_set11nAggrFirst = ar5416Set11nAggrFirst_20;
124 ah->ah_set11nAggrMiddle = ar5416Set11nAggrMiddle_20;
125 ah->ah_set11nAggrLast = ar5416Set11nAggrLast_20;
126 ah->ah_clr11nAggr = ar5416Clr11nAggr_20;
127 ah->ah_set11nBurstDuration = ar5416Set11nBurstDuration_20;
128 ah->ah_setupRxDesc = ar5416SetupRxDesc_20;
129 ah->ah_procRxDescFast = ar5416ProcRxDescFast_20;
130 ah->ah_updateCTSForBursting = NULL;
131 ah->ah_setupTxDesc = ar5416SetupTxDesc_20;
132 ah->ah_reqTxIntrDesc = ar5416IntrReqTxDesc_20;
133 ah->ah_fillTxDesc = ar5416FillTxDesc_20;
134 ah->ah_fillKeyTxDesc = ar5416FillKeyTxDesc_20;
135 ah->ah_procTxDesc = ar5416ProcTxDesc_20;
136 ah->ah_set11nVirtualMoreFrag = ar5416Set11nVirtualMoreFrag_20;
142 /**********************/
143 /* Interrupt Handling */
144 /**********************/
146 HAL_BOOL ar5416IsInterruptPending(struct ath_hal *ah)
148 a_uint32_t host_isr = OS_REG_READ(ah, AR_INTR_ASYNC_CAUSE);
150 * Some platforms trigger our ISR before applying power to
151 * the card, so make sure.
153 return ((host_isr != AR_INTR_SPURIOUS) && (host_isr & AR_INTR_MAC_IRQ));
156 HAL_BOOL ar5416GetPendingInterrupts(struct ath_hal *ah, HAL_INT *masked)
160 HAL_BOOL fatal_int = AH_FALSE;
161 a_uint32_t sync_cause;
163 if (OS_REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) {
164 if ((OS_REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M) != AR_RTC_STATUS_ON) {
173 isr = OS_REG_READ(ah, AR_ISR_RAC);
174 if (isr == 0xffffffff) {
179 *masked = isr & HAL_INT_COMMON;
181 #ifdef AR5416_INT_MITIGATION
182 if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM)) {
183 *masked |= HAL_INT_RX;
185 if (isr & (AR_ISR_TXMINTR | AR_ISR_TXINTM)) {
186 *masked |= HAL_INT_TX;
190 if (isr & AR_ISR_BCNMISC) {
193 s2_s = OS_REG_READ(ah, AR_ISR_S2_S);
195 if (s2_s & AR_ISR_S2_GTT) {
196 *masked |= HAL_INT_GTT;
199 if (s2_s & AR_ISR_S2_CST) {
200 *masked |= HAL_INT_CST;
204 if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
205 *masked |= HAL_INT_RX;
206 if (isr & (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR | AR_ISR_TXEOL)) {
207 struct ath_hal_5416 *ahp = AH5416(ah);
208 a_uint32_t s0_s, s1_s;
210 *masked |= HAL_INT_TX;
211 s0_s = OS_REG_READ(ah, AR_ISR_S0_S);
212 s1_s = OS_REG_READ(ah, AR_ISR_S1_S);
213 ahp->ah_intrTxqs |= MS(s0_s, AR_ISR_S0_QCU_TXOK);
214 ahp->ah_intrTxqs |= MS(s0_s, AR_ISR_S0_QCU_TXDESC);
215 ahp->ah_intrTxqs |= MS(s1_s, AR_ISR_S1_QCU_TXERR);
216 ahp->ah_intrTxqs |= MS(s1_s, AR_ISR_S1_QCU_TXEOL);
220 sync_cause = OS_REG_READ(ah, AR_INTR_SYNC_CAUSE);
221 fatal_int = ((sync_cause != AR_INTR_SPURIOUS) &&
222 (sync_cause & (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))) ?
225 if (AH_TRUE == fatal_int) {
226 OS_REG_WRITE(ah, AR_INTR_SYNC_CAUSE_CLR, sync_cause);
227 (void) OS_REG_READ(ah, AR_INTR_SYNC_CAUSE_CLR);
233 HAL_INT ar5416GetInterrupts(struct ath_hal *ah)
235 return AH5416(ah)->ah_maskReg;
239 ar5416SetInterrupts(struct ath_hal *ah, HAL_INT ints)
241 struct ath_hal_5416 *ahp = AH5416(ah);
242 a_uint32_t omask = ahp->ah_maskReg;
245 if (omask & HAL_INT_GLOBAL) {
246 OS_REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
247 (void) OS_REG_READ(ah, AR_IER);
250 mask = ints & HAL_INT_COMMON;
251 if (ints & HAL_INT_TX) {
252 #ifdef AR5416_INT_MITIGATION
253 mask |= AR_IMR_TXMINTR | AR_IMR_TXINTM;
256 mask |= AR_IMR_TXDESC;
258 mask |= AR_IMR_TXERR;
259 mask |= AR_IMR_TXEOL;
261 if (ints & HAL_INT_RX) {
262 mask |= AR_IMR_RXERR;
263 #ifdef AR5416_INT_MITIGATION
264 mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
266 mask |= AR_IMR_RXOK | AR_IMR_RXDESC;
270 if (ints & (HAL_INT_GTT | HAL_INT_CST)) {
271 mask |= AR_IMR_BCNMISC;
274 OS_REG_WRITE(ah, AR_IMR, mask);
275 (void) OS_REG_READ(ah, AR_IMR);
276 ahp->ah_maskReg = ints;
278 /* Re-enable interrupts if they were enabled before. */
279 if (ints & HAL_INT_GLOBAL) {
280 OS_REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
281 /* See explanation above... */
282 (void) OS_REG_READ(ah, AR_IER);
285 OS_REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, AR_INTR_MAC_IRQ);
286 OS_REG_WRITE(ah, AR_INTR_ASYNC_MASK, AR_INTR_MAC_IRQ);
287 OS_REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_ALL);
296 HAL_STATUS ar5416GetCapability(struct ath_hal *ah, HAL_CAPABILITY_TYPE type,
297 a_uint32_t capability, a_uint32_t *result)
300 return ath_hal_getcapability(ah, type, capability, result);
307 u_int64_t ar5416GetTsf64(struct ath_hal *ah)
311 tsf = OS_REG_READ(ah, AR_TSF_U32);
312 tsf = (tsf << 32) | OS_REG_READ(ah, AR_TSF_L32);
317 a_uint32_t ar5416GetTsf32(struct ath_hal *ah)
319 return OS_REG_READ(ah, AR_TSF_L32);
322 void ar5416ResetTsf(struct ath_hal *ah)
328 while (OS_REG_READ(ah, AR_SLP32_MODE) & AR_SLP32_TSF_WRITE_STATUS) {
335 OS_REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
342 a_uint32_t ar5416GetRxDP(struct ath_hal *ath)
344 return OS_REG_READ(ath, AR_RXDP);
348 void ar5416SetRxDP(struct ath_hal *ah, a_uint32_t rxdp)
350 OS_REG_WRITE(ah, AR_RXDP, rxdp);
351 HALASSERT(OS_REG_READ(ah, AR_RXDP) == rxdp);
354 void ar5416SetMulticastFilter(struct ath_hal *ah, a_uint32_t filter0, a_uint32_t filter1)
356 OS_REG_WRITE(ah, AR_MCAST_FIL0, filter0);
357 OS_REG_WRITE(ah, AR_MCAST_FIL1, filter1);
360 HAL_BOOL ar5416ClrMulticastFilterIndex(struct ath_hal *ah, a_uint32_t ix)
367 val = OS_REG_READ(ah, AR_MCAST_FIL1);
368 OS_REG_WRITE(ah, AR_MCAST_FIL1, (val &~ (1<<(ix-32))));
370 val = OS_REG_READ(ah, AR_MCAST_FIL0);
371 OS_REG_WRITE(ah, AR_MCAST_FIL0, (val &~ (1<<ix)));
376 HAL_BOOL ar5416StopDmaReceive(struct ath_hal *ah)
378 OS_REG_WRITE(ah, AR_CR, AR_CR_RXD); /* Set receive disable bit */
379 if (!ath_hal_wait(ah, AR_CR, AR_CR_RXE, 0)) {
386 HAL_BOOL ar5416SetMulticastFilterIndex(struct ath_hal *ah, a_uint32_t ix)
393 val = OS_REG_READ(ah, AR_MCAST_FIL1);
394 OS_REG_WRITE(ah, AR_MCAST_FIL1, (val | (1<<(ix-32))));
396 val = OS_REG_READ(ah, AR_MCAST_FIL0);
397 OS_REG_WRITE(ah, AR_MCAST_FIL0, (val | (1<<ix)));
402 void ar5416StartPcuReceive(struct ath_hal *ah)
404 OS_REG_CLR_BIT(ah, AR_DIAG_SW,
405 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
408 void ar5416SetRxFilter(struct ath_hal *ah, a_uint32_t bits)
412 OS_REG_WRITE(ah, AR_RX_FILTER, (bits & 0xff) | AR_RX_COMPR_BAR);
414 if (bits & HAL_RX_FILTER_PHYRADAR)
415 phybits |= AR_PHY_ERR_RADAR;
416 if (bits & HAL_RX_FILTER_PHYERR)
417 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
418 OS_REG_WRITE(ah, AR_PHY_ERR, phybits);
420 OS_REG_WRITE(ah, AR_RXCFG,OS_REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
422 OS_REG_WRITE(ah, AR_RXCFG,OS_REG_READ(ah, AR_RXCFG) &~ AR_RXCFG_ZLFDMA);
426 void ar5416EnableReceive(struct ath_hal *ah)
428 OS_REG_WRITE(ah, AR_CR, AR_CR_RXE);
431 void ar5416StopPcuReceive(struct ath_hal *ah)
433 OS_REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
436 HAL_BOOL ar5416SetupRxDesc_20(struct ath_hal *ah, struct ath_rx_desc *ds,
437 a_uint32_t size, a_uint32_t flags)
439 struct ar5416_desc *ads = AR5416DESC(ds);
441 HALASSERT((size &~ AR_BufLen) == 0);
443 ads->ds_ctl1 = size & AR_BufLen;
444 if (flags & HAL_RXDESC_INTREQ)
445 ads->ds_ctl1 |= AR_RxIntrReq;
447 /* this should be enough */
448 ads->ds_rxstatus8 &= ~AR_RxDone;
453 HAL_STATUS ar5416ProcRxDescFast_20(struct ath_hal *ah, struct ath_rx_desc *ds,
454 a_uint32_t pa, struct ath_desc *nds,
455 struct ath_rx_status *rx_stats)
457 struct ar5416_desc ads;
458 struct ar5416_desc *adsp = AR5416DESC(ds);
459 struct ar5416_desc *ands = AR5416DESC(nds);
461 if ((adsp->ds_rxstatus8 & AR_RxDone) == 0)
462 return HAL_EINPROGRESS;
464 * Given the use of a self-linked tail be very sure that the hw is
465 * done with this descriptor; the hw may have done this descriptor
466 * once and picked it up again...make sure the hw has moved on.
468 if ((ands->ds_rxstatus8 & AR_RxDone) == 0
469 && OS_REG_READ(ah, AR_RXDP) == pa)
470 return HAL_EINPROGRESS;
473 * Now we need to get the stats from the descriptor. Since desc are
474 * uncached, lets make a copy of the stats first. Note that, since we
475 * touch most of the rx stats, a memcpy would always be more efficient
477 * Next we fill in all values in a caller passed stack variable.
478 * This reduces the number of uncached accesses.
479 * Do this copy here, after the check so that when the checks fail, we
480 * dont end up copying the entire stats uselessly.
482 ads.u.rx = adsp->u.rx;
484 rx_stats->rs_status = 0;
485 rx_stats->rs_flags = 0;
487 rx_stats->rs_datalen = ads.ds_rxstatus1 & AR_DataLen;
488 rx_stats->rs_tstamp = ads.AR_RcvTimestamp;
490 /* XXX what about KeyCacheMiss? */
491 rx_stats->rs_rssi_combined =
492 MS(ads.ds_rxstatus4, AR_RxRSSICombined);
493 rx_stats->rs_rssi_ctl0 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt00);
494 rx_stats->rs_rssi_ctl1 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt01);
495 rx_stats->rs_rssi_ctl2 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt02);
496 rx_stats->rs_rssi_ext0 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt10);
497 rx_stats->rs_rssi_ext1 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt11);
498 rx_stats->rs_rssi_ext2 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt12);
499 if (ads.ds_rxstatus8 & AR_RxKeyIdxValid)
500 rx_stats->rs_keyix = MS(ads.ds_rxstatus8, AR_KeyIdx);
502 rx_stats->rs_keyix = HAL_RXKEYIX_INVALID;
503 /* NB: caller expected to do rate table mapping */
504 rx_stats->rs_rate = RXSTATUS_RATE(ah, (&ads));
505 rx_stats->rs_more = (ads.ds_rxstatus1 & AR_RxMore) ? 1 : 0;
507 rx_stats->rs_isaggr = (ads.ds_rxstatus8 & AR_RxAggr) ? 1 : 0;
508 rx_stats->rs_moreaggr = (ads.ds_rxstatus8 & AR_RxMoreAggr) ? 1 : 0;
509 rx_stats->rs_flags |= (ads.ds_rxstatus3 & AR_GI) ? HAL_RX_GI : 0;
510 rx_stats->rs_flags |= (ads.ds_rxstatus3 & AR_2040) ? HAL_RX_2040 : 0;
512 if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
513 rx_stats->rs_flags |= HAL_RX_DELIM_CRC_PRE;
514 if (ads.ds_rxstatus8 & AR_PostDelimCRCErr)
515 rx_stats->rs_flags |= HAL_RX_DELIM_CRC_POST;
516 if (ads.ds_rxstatus8 & AR_DecryptBusyErr)
517 rx_stats->rs_flags |= HAL_RX_DECRYPT_BUSY;
519 if ((ads.ds_rxstatus8 & AR_RxFrameOK) == 0) {
521 * These four bits should not be set together. The
522 * 5416 spec states a Michael error can only occur if
523 * DecryptCRCErr not set (and TKIP is used). Experience
524 * indicates however that you can also get Michael errors
525 * when a CRC error is detected, but these are specious.
526 * Consequently we filter them out here so we don't
527 * confuse and/or complicate drivers.
529 if (ads.ds_rxstatus8 & AR_CRCErr)
530 rx_stats->rs_status |= HAL_RXERR_CRC;
531 else if (ads.ds_rxstatus8 & AR_PHYErr) {
534 rx_stats->rs_status |= HAL_RXERR_PHY;
535 phyerr = MS(ads.ds_rxstatus8, AR_PHYErrCode);
536 rx_stats->rs_phyerr = phyerr;
537 } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
538 rx_stats->rs_status |= HAL_RXERR_DECRYPT;
539 else if (ads.ds_rxstatus8 & AR_MichaelErr)
540 rx_stats->rs_status |= HAL_RXERR_MIC;
542 rx_stats->evm0=ads.AR_RxEVM0;
543 rx_stats->evm1=ads.AR_RxEVM1;
544 rx_stats->evm2=ads.AR_RxEVM2;
553 HAL_BOOL ar5416UpdateTxTrigLevel(struct ath_hal *ah, HAL_BOOL bIncTrigLevel)
555 struct ath_hal_5416 *ahp = AH5416(ah);
556 a_uint32_t txcfg, curLevel, newLevel;
560 * Disable interrupts while futzing with the fifo level.
562 omask = ar5416SetInterrupts(ah, ahp->ah_maskReg &~ HAL_INT_GLOBAL);
564 txcfg = OS_REG_READ(ah, AR_TXCFG);
565 curLevel = MS(txcfg, AR_FTRIG);
569 if (curLevel < MAX_TX_FIFO_THRESHOLD)
571 } else if (curLevel > MIN_TX_FIFO_THRESHOLD)
573 if (newLevel != curLevel)
574 OS_REG_WRITE(ah, AR_TXCFG,
575 (txcfg &~ AR_FTRIG) | SM(newLevel, AR_FTRIG));
577 /* re-enable chip interrupts */
578 ar5416SetInterrupts(ah, omask);
580 return (newLevel != curLevel);
583 a_uint32_t ar5416GetTxDP(struct ath_hal *ah, a_uint32_t q)
585 HALASSERT(q < AH_PRIVATE(ah)->ah_caps.halTotalQueues);
586 return OS_REG_READ(ah, AR_QTXDP(q));
589 HAL_BOOL ar5416SetTxDP(struct ath_hal *ah, a_uint32_t q, a_uint32_t txdp)
591 HALASSERT(q < AH_PRIVATE(ah)->ah_caps.halTotalQueues);
592 HALASSERT(AH5416(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE);
595 * Make sure that TXE is deasserted before setting the TXDP. If TXE
596 * is still asserted, setting TXDP will have no effect.
598 HALASSERT((OS_REG_READ(ah, AR_Q_TXE) & (1 << q)) == 0);
600 OS_REG_WRITE(ah, AR_QTXDP(q), txdp);
605 HAL_BOOL ar5416StartTxDma(struct ath_hal *ah, a_uint32_t q)
607 HALASSERT(q < AH_PRIVATE(ah)->ah_caps.halTotalQueues);
608 HALASSERT(AH5416(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE);
610 /* Check to be sure we're not enabling a q that has its TXD bit set. */
611 HALASSERT((OS_REG_READ(ah, AR_Q_TXD) & (1 << q)) == 0);
613 OS_REG_WRITE(ah, AR_Q_TXE, 1 << q);
618 a_uint32_t ar5416NumTxPending(struct ath_hal *ah, a_uint32_t q)
622 HALASSERT(q < AH_PRIVATE(ah)->ah_caps.halTotalQueues);
623 HALASSERT(AH5416(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE);
625 npend = OS_REG_READ(ah, AR_QSTS(q)) & AR_Q_STS_PEND_FR_CNT;
628 * Pending frame count (PFC) can momentarily go to zero
629 * while TXE remains asserted. In other words a PFC of
630 * zero is not sufficient to say that the queue has stopped.
632 if (OS_REG_READ(ah, AR_Q_TXE) & (1 << q))
636 if (npend && (AH5416(ah)->ah_txq[q].tqi_type == HAL_TX_QUEUE_CAB)) {
637 if (OS_REG_READ(ah, AR_Q_RDYTIMESHDN) & (1 << q)) {
638 isrPrintf("RTSD on CAB queue\n");
639 /* Clear the ReadyTime shutdown status bits */
640 OS_REG_WRITE(ah, AR_Q_RDYTIMESHDN, 1 << q);
647 HAL_BOOL ar5416AbortTxDma(struct ath_hal *ah)
652 * set txd on all queues
654 OS_REG_WRITE(ah, AR_Q_TXD, AR_Q_TXD_M);
659 OS_REG_SET_BIT(ah, AR_PCU_MISC, (AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF));
660 OS_REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
661 OS_REG_SET_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
664 * wait on all tx queues
666 for (q = 0; q < AR_NUM_QCU; q++) {
667 for (i = 0; i < AR5416_ABORT_LOOPS; i++) {
668 if (!ar5416NumTxPending(ah, q))
671 OS_DELAY(AR5416_ABORT_WAIT);
673 if (i == AR5416_ABORT_LOOPS) {
679 * clear tx abort bits
681 OS_REG_CLR_BIT(ah, AR_PCU_MISC, (AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF));
682 OS_REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
683 OS_REG_CLR_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
688 OS_REG_WRITE(ah, AR_Q_TXD, 0);
693 HAL_BOOL ar5416StopTxDma(struct ath_hal*ah, a_uint32_t q)
697 HALASSERT(q < AH_PRIVATE(ah)->ah_caps.halTotalQueues);
699 HALASSERT(AH5416(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE);
701 OS_REG_WRITE(ah, AR_Q_TXD, 1 << q);
702 for (i = 1000; i != 0; i--) {
703 if (ar5416NumTxPending(ah, q) == 0)
705 OS_DELAY(100); /* XXX get actual value */
708 OS_REG_WRITE(ah, AR_Q_TXD, 0);
712 void ar5416GetTxIntrQueue(struct ath_hal *ah, a_uint32_t *txqs)
714 struct ath_hal_5416 *ahp = AH5416(ah);
715 *txqs &= ahp->ah_intrTxqs;
716 ahp->ah_intrTxqs &= ~(*txqs);
719 void ar5416IntrReqTxDesc_20(struct ath_hal *ah, struct ath_desc *ds)
721 struct ar5416_desc *ads = AR5416DESC(ds);
722 ads->ds_ctl0 |= AR_TxIntrReq;
725 HAL_BOOL ar5416SetupTxDesc_20(struct ath_hal *ah, struct ath_tx_desc *ds,
730 a_uint32_t txRate0, a_uint32_t txTries0,
734 a_uint32_t rtsctsRate,
735 a_uint32_t rtsctsDuration,
736 a_uint32_t compicvLen,
737 a_uint32_t compivLen,
740 #define RTSCTS (HAL_TXDESC_RTSENA|HAL_TXDESC_CTSENA)
742 struct ar5416_desc *ads = AR5416DESC(ds);
746 ads->ds_txstatus9 &= ~AR_TxDone;
748 HALASSERT(txTries0 != 0);
749 HALASSERT(isValidPktType(type));
750 HALASSERT(isValidTxRate(txRate0));
751 HALASSERT((flags & RTSCTS) != RTSCTS);
756 ads->ds_ctl0 = (pktLen & AR_FrameLen)
757 | (txPower << AR_XmitPower_S)
758 | (flags & HAL_TXDESC_VEOL ? AR_VEOL : 0)
759 | (flags & HAL_TXDESC_CLRDMASK ? AR_ClrDestMask : 0)
760 | (flags & HAL_TXDESC_INTREQ ? AR_TxIntrReq : 0);
762 ads->ds_ctl1 = (type << AR_FrameType_S)
763 | (flags & HAL_TXDESC_NOACK ? AR_NoAck : 0);
764 ads->ds_ctl2 = SM(txTries0, AR_XmitDataTries0);
765 ads->ds_ctl3 = (txRate0 << AR_XmitRate0_S);
767 ads->ds_ctl7 = SM(AR5416_LEGACY_CHAINMASK, AR_ChainSel0)
768 | SM(AR5416_LEGACY_CHAINMASK, AR_ChainSel1)
769 | SM(AR5416_LEGACY_CHAINMASK, AR_ChainSel2)
770 | SM(AR5416_LEGACY_CHAINMASK, AR_ChainSel3);
772 if (keyIx != HAL_TXKEYIX_INVALID) {
773 /* XXX validate key index */
774 ads->ds_ctl1 |= SM(keyIx, AR_DestIdx);
775 ads->ds_ctl0 |= AR_DestIdxValid;
778 if (flags & RTSCTS) {
779 if (!isValidTxRate(rtsctsRate)) {
782 /* XXX validate rtsctsDuration */
783 ads->ds_ctl0 |= (flags & HAL_TXDESC_CTSENA ? AR_CTSEnable : 0)
784 | (flags & HAL_TXDESC_RTSENA ? AR_RTSEnable : 0);
785 ads->ds_ctl2 |= SM(rtsctsDuration, AR_BurstDur);
786 ads->ds_ctl3 |= (rtsctsRate << AR_RTSCTSRate_S);
793 HAL_BOOL ar5416FillTxDesc_20(struct ath_hal *ah, struct ath_tx_desc *ds,
794 a_uint32_t segLen, HAL_BOOL firstSeg, HAL_BOOL lastSeg,
795 const struct ath_tx_desc *ds0)
797 struct ar5416_desc *ads = AR5416DESC(ds);
799 HALASSERT((segLen &~ AR_BufLen) == 0);
803 * First descriptor, don't clobber xmit control data
804 * setup by ar5416SetupTxDesc.
806 ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_TxMore);
807 } else if (lastSeg) {
809 * Last descriptor in a multi-descriptor frame,
810 * copy the multi-rate transmit parameters from
811 * the first frame for processing on completion.
814 ads->ds_ctl1 = segLen;
815 ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2;
816 ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3;
819 * Intermediate descriptor in a multi-descriptor frame.
822 ads->ds_ctl1 = segLen | AR_TxMore;
826 ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
831 HAL_BOOL ar5416FillKeyTxDesc_20(struct ath_hal *ah, struct ath_tx_desc *ds,
832 HAL_KEY_TYPE keyType)
834 struct ar5416_desc *ads = AR5416DESC(ds);
836 ads->ds_ctl6 = SM(keyType, AR_EncrType);
840 HAL_STATUS ar5416ProcTxDesc_20(struct ath_hal *ah, struct ath_tx_desc *gds)
842 struct ar5416_desc *ads = AR5416DESC(gds);
843 struct ath_tx_desc *ds = (struct ath_tx_desc *)gds;
845 if ((ads->ds_txstatus9 & AR_TxDone) == 0)
846 return HAL_EINPROGRESS;
848 ads->ds_txstatus9 &= ~AR_TxDone;
850 /* Update software copies of the HW status */
851 ds->ds_txstat.ts_seqnum = MS(ads->ds_txstatus9, AR_SeqNum);
852 ds->ds_txstat.ts_tstamp = ads->AR_SendTimestamp;
853 ds->ds_txstat.ts_status = 0;
854 ds->ds_txstat.ts_flags = 0;
856 if (ads->ds_txstatus1 & AR_ExcessiveRetries)
857 ds->ds_txstat.ts_status |= HAL_TXERR_XRETRY;
858 if (ads->ds_txstatus1 & AR_Filtered)
859 ds->ds_txstat.ts_status |= HAL_TXERR_FILT;
860 if (ads->ds_txstatus1 & AR_FIFOUnderrun)
861 ds->ds_txstat.ts_status |= HAL_TXERR_FIFO;
862 if (ads->ds_txstatus9 & AR_TxOpExceeded)
863 ds->ds_txstat.ts_status |= HAL_TXERR_XTXOP;
864 if (ads->ds_txstatus1 & AR_TxTimerExpired)
865 ds->ds_txstat.ts_status |= HAL_TXERR_TIMER_EXPIRED;
867 if (ads->ds_txstatus1 & AR_DescCfgErr)
868 ds->ds_txstat.ts_flags |= HAL_TX_DESC_CFG_ERR;
869 if (ads->ds_txstatus1 & AR_TxDataUnderrun) {
870 ds->ds_txstat.ts_flags |= HAL_TX_DATA_UNDERRUN;
871 ar5416UpdateTxTrigLevel(ah, AH_TRUE);
873 if (ads->ds_txstatus1 & AR_TxDelimUnderrun) {
874 ds->ds_txstat.ts_flags |= HAL_TX_DELIM_UNDERRUN;
875 ar5416UpdateTxTrigLevel(ah, AH_TRUE);
877 if (ads->ds_txstatus0 & AR_TxBaStatus) {
878 ds->ds_txstat.ts_flags |= HAL_TX_BA;
879 ds->ds_txstat.ba_low = ads->AR_BaBitmapLow;
880 ds->ds_txstat.ba_high = ads->AR_BaBitmapHigh;
884 * Extract the transmit rate used and mark the rate as
885 * ``alternate'' if it wasn't the series 0 rate.
887 ds->ds_txstat.ts_rate = MS(ads->ds_txstatus9, AR_FinalTxIdx);
888 ds->ds_txstat.ts_rssi_combined =
889 MS(ads->ds_txstatus5, AR_TxRSSICombined);
890 ds->ds_txstat.ts_rssi_ctl0 = MS(ads->ds_txstatus0, AR_TxRSSIAnt00);
891 ds->ds_txstat.ts_rssi_ctl1 = MS(ads->ds_txstatus0, AR_TxRSSIAnt01);
892 ds->ds_txstat.ts_rssi_ctl2 = MS(ads->ds_txstatus0, AR_TxRSSIAnt02);
893 ds->ds_txstat.ts_rssi_ext0 = MS(ads->ds_txstatus5, AR_TxRSSIAnt10);
894 ds->ds_txstat.ts_rssi_ext1 = MS(ads->ds_txstatus5, AR_TxRSSIAnt11);
895 ds->ds_txstat.ts_rssi_ext2 = MS(ads->ds_txstatus5, AR_TxRSSIAnt12);
896 ds->ds_txstat.evm0 = ads->AR_TxEVM0;
897 ds->ds_txstat.evm1 = ads->AR_TxEVM1;
898 ds->ds_txstat.evm2 = ads->AR_TxEVM2;
899 ds->ds_txstat.ts_shortretry = MS(ads->ds_txstatus1, AR_RTSFailCnt);
900 ds->ds_txstat.ts_longretry = MS(ads->ds_txstatus1, AR_DataFailCnt);
901 ds->ds_txstat.ts_virtcol = MS(ads->ds_txstatus1, AR_VirtRetryCnt);
902 ds->ds_txstat.ts_antenna = 0; /* ignored for owl */
907 void ar5416Set11nTxDesc_20(struct ath_hal *ah, struct ath_tx_desc *ds,
908 a_uint32_t pktLen, HAL_PKT_TYPE type, a_uint32_t txPower,
909 a_uint32_t keyIx, HAL_KEY_TYPE keyType,
912 struct ar5416_desc *ads = AR5416DESC(ds);
914 HALASSERT(isValidPktType(type));
915 HALASSERT(isValidKeyType(keyType));
920 ads->ds_ctl0 = (pktLen & AR_FrameLen)
921 | (flags & HAL_TXDESC_VMF ? AR_VirtMoreFrag : 0)
922 | SM(txPower, AR_XmitPower)
923 | (flags & HAL_TXDESC_RTSENA ? AR_RTSEnable : 0)
924 | (flags & HAL_TXDESC_VEOL ? AR_VEOL : 0)
925 | (flags & HAL_TXDESC_CLRDMASK ? AR_ClrDestMask : 0)
926 | (flags & HAL_TXDESC_INTREQ ? AR_TxIntrReq : 0)
927 | (keyIx != HAL_TXKEYIX_INVALID ? AR_DestIdxValid : 0)
928 | (flags & HAL_TXDESC_CTSENA ? AR_CTSEnable : 0);
930 ads->ds_ctl1 = (keyIx != HAL_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0)
931 | SM(type, AR_FrameType)
932 | (flags & HAL_TXDESC_NOACK ? AR_NoAck : 0)
933 | (flags & HAL_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
934 | (flags & HAL_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
936 ads->ds_ctl6 = SM(keyType, AR_EncrType);
941 void ar5416Set11nRateScenario_20(struct ath_hal *ah, struct ath_tx_desc *ds,
942 a_uint32_t durUpdateEn, a_uint32_t rtsctsRate,
943 a_uint32_t rtsctsDuration,
944 HAL_11N_RATE_SERIES series[], a_uint32_t nseries,
947 struct ar5416_desc *ads = AR5416DESC(ds);
950 HALASSERT(nseries == 4);
954 * Rate control settings override
956 ds_ctl0 = ads->ds_ctl0;
958 if (flags & (HAL_TXDESC_RTSENA | HAL_TXDESC_CTSENA)) {
959 if (flags & HAL_TXDESC_RTSENA) {
960 ds_ctl0 &= ~AR_CTSEnable;
961 ds_ctl0 |= AR_RTSEnable;
963 ds_ctl0 &= ~AR_RTSEnable;
964 ds_ctl0 |= AR_CTSEnable;
967 ds_ctl0 = (ds_ctl0 & ~(AR_RTSEnable | AR_CTSEnable));
970 ads->ds_ctl0 = ds_ctl0;
972 ads->ds_ctl2 = set11nTries(series, 0)
973 | set11nTries(series, 1)
974 | set11nTries(series, 2)
975 | set11nTries(series, 3)
976 | (durUpdateEn ? AR_DurUpdateEn : 0);
978 ads->ds_ctl3 = set11nRate(series, 0)
979 | set11nRate(series, 1)
980 | set11nRate(series, 2)
981 | set11nRate(series, 3);
983 ads->ds_ctl4 = set11nPktDurRTSCTS(series, 0)
984 | set11nPktDurRTSCTS(series, 1);
986 ads->ds_ctl5 = set11nPktDurRTSCTS(series, 2)
987 | set11nPktDurRTSCTS(series, 3);
989 ads->ds_ctl7 = set11nRateFlags(series, 0)
990 | set11nRateFlags(series, 1)
991 | set11nRateFlags(series, 2)
992 | set11nRateFlags(series, 3)
993 | SM(rtsctsRate, AR_RTSCTSRate);
998 void ar5416Set11nRateScenario_20(struct ath_hal *ah, struct ath_tx_desc *ds,
999 a_uint32_t durUpdateEn, a_uint32_t rtsctsRate,
1000 a_uint32_t rtsctsDuration,
1001 HAL_11N_RATE_SERIES series[], a_uint32_t nseries,
1004 struct ar5416_desc *ads = AR5416DESC(ds);
1007 HALASSERT(nseries == 4);
1011 * Rate control settings override
1013 if (flags & (HAL_TXDESC_RTSENA | HAL_TXDESC_CTSENA)) {
1014 ds_ctl0 = ads->ds_ctl0;
1016 if (flags & HAL_TXDESC_RTSENA) {
1017 ds_ctl0 &= ~AR_CTSEnable;
1018 ds_ctl0 |= AR_RTSEnable;
1020 ds_ctl0 &= ~AR_RTSEnable;
1021 ds_ctl0 |= AR_CTSEnable;
1024 ads->ds_ctl0 = ds_ctl0;
1027 ads->ds_ctl2 = set11nTries(series, 0)
1028 | set11nTries(series, 1)
1029 | set11nTries(series, 2)
1030 | set11nTries(series, 3)
1031 | (durUpdateEn ? AR_DurUpdateEn : 0);
1033 ads->ds_ctl3 = set11nRate(series, 0)
1034 | set11nRate(series, 1)
1035 | set11nRate(series, 2)
1036 | set11nRate(series, 3);
1038 ads->ds_ctl4 = set11nPktDurRTSCTS(series, 0)
1039 | set11nPktDurRTSCTS(series, 1);
1041 ads->ds_ctl5 = set11nPktDurRTSCTS(series, 2)
1042 | set11nPktDurRTSCTS(series, 3);
1044 ads->ds_ctl7 = set11nRateFlags(series, 0)
1045 | set11nRateFlags(series, 1)
1046 | set11nRateFlags(series, 2)
1047 | set11nRateFlags(series, 3)
1048 | SM(rtsctsRate, AR_RTSCTSRate);
1053 void ar5416Set11nAggrFirst_20(struct ath_hal *ah, struct ath_tx_desc *ds, a_uint32_t aggrLen,
1054 a_uint32_t numDelims)
1056 struct ar5416_desc *ads = AR5416DESC(ds);
1058 ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
1060 ads->ds_ctl6 &= ~(AR_AggrLen | AR_PadDelim);
1061 ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen) |
1062 SM(numDelims, AR_PadDelim);
1065 void ar5416Set11nAggrMiddle_20(struct ath_hal *ah, struct ath_tx_desc *ds, a_uint32_t numDelims)
1067 struct ar5416_desc *ads = AR5416DESC(ds);
1070 ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
1073 * We use a stack variable to manipulate ctl6 to reduce uncached
1074 * read modify, modfiy, write.
1076 ctl6 = ads->ds_ctl6;
1077 ctl6 &= ~AR_PadDelim;
1078 ctl6 |= SM(numDelims, AR_PadDelim);
1079 ads->ds_ctl6 = ctl6;
1082 void ar5416Set11nAggrLast_20(struct ath_hal *ah, struct ath_tx_desc *ds)
1084 struct ar5416_desc *ads = AR5416DESC(ds);
1086 ads->ds_ctl1 |= AR_IsAggr;
1087 ads->ds_ctl1 &= ~AR_MoreAggr;
1088 ads->ds_ctl6 &= ~AR_PadDelim;
1091 void ar5416Clr11nAggr_20(struct ath_hal *ah, struct ath_tx_desc *ds)
1093 struct ar5416_desc *ads = AR5416DESC(ds);
1095 ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr);
1098 void ar5416Set11nBurstDuration_20(struct ath_hal *ah, struct ath_tx_desc *ds,
1099 a_uint32_t burstDuration)
1101 struct ar5416_desc *ads = AR5416DESC(ds);
1103 ads->ds_ctl2 &= ~AR_BurstDur;
1104 ads->ds_ctl2 |= SM(burstDuration, AR_BurstDur);
1107 void ar5416Set11nVirtualMoreFrag_20(struct ath_hal *ah, struct ath_tx_desc *ds,
1110 struct ar5416_desc *ads = AR5416DESC(ds);
1113 ads->ds_ctl0 |= AR_VirtMoreFrag;
1115 ads->ds_ctl0 &= ~AR_VirtMoreFrag;