/* * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting * Copyright (c) 2002-2008 Atheros Communications, Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * $FreeBSD$ */ #include "opt_ah.h" #include "ah.h" #include "ah_desc.h" #include "ah_internal.h" #include "ar5416/ar5416.h" #include "ar5416/ar5416reg.h" #include "ar5416/ar5416phy.h" #include "ar5416/ar5416desc.h" /* * Stop transmit on the specified queue */ HAL_BOOL ar5416StopTxDma(struct ath_hal *ah, u_int q) { #define STOP_DMA_TIMEOUT 4000 /* us */ #define STOP_DMA_ITER 100 /* us */ u_int i; HALASSERT(q < AH_PRIVATE(ah)->ah_caps.halTotalQueues); HALASSERT(AH5212(ah)->ah_txq[q].tqi_type != HAL_TX_QUEUE_INACTIVE); OS_REG_WRITE(ah, AR_Q_TXD, 1 << q); for (i = STOP_DMA_TIMEOUT/STOP_DMA_ITER; i != 0; i--) { if (ar5212NumTxPending(ah, q) == 0) break; OS_DELAY(STOP_DMA_ITER); } #ifdef AH_DEBUG if (i == 0) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s: queue %u DMA did not stop in 400 msec\n", __func__, q); HALDEBUG(ah, HAL_DEBUG_ANY, "%s: QSTS 0x%x Q_TXE 0x%x Q_TXD 0x%x Q_CBR 0x%x\n", __func__, OS_REG_READ(ah, AR_QSTS(q)), OS_REG_READ(ah, AR_Q_TXE), OS_REG_READ(ah, AR_Q_TXD), OS_REG_READ(ah, AR_QCBRCFG(q))); HALDEBUG(ah, HAL_DEBUG_ANY, "%s: Q_MISC 0x%x Q_RDYTIMECFG 0x%x Q_RDYTIMESHDN 0x%x\n", __func__, OS_REG_READ(ah, AR_QMISC(q)), OS_REG_READ(ah, AR_QRDYTIMECFG(q)), OS_REG_READ(ah, AR_Q_RDYTIMESHDN)); } #endif /* AH_DEBUG */ /* ar5416 and up can kill packets at the PCU level */ if (ar5212NumTxPending(ah, q)) { uint32_t j; HALDEBUG(ah, HAL_DEBUG_TXQUEUE, "%s: Num of pending TX Frames %d on Q %d\n", __func__, ar5212NumTxPending(ah, q), q); /* Kill last PCU Tx Frame */ /* TODO - save off and restore current values of Q1/Q2? */ for (j = 0; j < 2; j++) { uint32_t tsfLow = OS_REG_READ(ah, AR_TSF_L32); OS_REG_WRITE(ah, AR_QUIET2, SM(10, AR_QUIET2_QUIET_DUR)); OS_REG_WRITE(ah, AR_QUIET_PERIOD, 100); OS_REG_WRITE(ah, AR_NEXT_QUIET, tsfLow >> 10); OS_REG_SET_BIT(ah, AR_TIMER_MODE, AR_TIMER_MODE_QUIET); if ((OS_REG_READ(ah, AR_TSF_L32)>>10) == (tsfLow>>10)) break; HALDEBUG(ah, HAL_DEBUG_ANY, "%s: TSF moved while trying to set quiet time " "TSF: 0x%08x\n", __func__, tsfLow); HALASSERT(j < 1); /* TSF shouldn't count twice or reg access is taking forever */ } OS_REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_CHAN_IDLE); /* Allow the quiet mechanism to do its work */ OS_DELAY(200); OS_REG_CLR_BIT(ah, AR_TIMER_MODE, AR_TIMER_MODE_QUIET); /* Verify the transmit q is empty */ for (i = STOP_DMA_TIMEOUT/STOP_DMA_ITER; i != 0; i--) { if (ar5212NumTxPending(ah, q) == 0) break; OS_DELAY(STOP_DMA_ITER); } if (i == 0) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s: Failed to stop Tx DMA in %d msec after killing" " last frame\n", __func__, STOP_DMA_TIMEOUT / 1000); } OS_REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_CHAN_IDLE); } OS_REG_WRITE(ah, AR_Q_TXD, 0); return (i != 0); #undef STOP_DMA_ITER #undef STOP_DMA_TIMEOUT } #define VALID_KEY_TYPES \ ((1 << HAL_KEY_TYPE_CLEAR) | (1 << HAL_KEY_TYPE_WEP)|\ (1 << HAL_KEY_TYPE_AES) | (1 << HAL_KEY_TYPE_TKIP)) #define isValidKeyType(_t) ((1 << (_t)) & VALID_KEY_TYPES) #define set11nTries(_series, _index) \ (SM((_series)[_index].Tries, AR_XmitDataTries##_index)) #define set11nRate(_series, _index) \ (SM((_series)[_index].Rate, AR_XmitRate##_index)) #define set11nPktDurRTSCTS(_series, _index) \ (SM((_series)[_index].PktDuration, AR_PacketDur##_index) |\ ((_series)[_index].RateFlags & HAL_RATESERIES_RTS_CTS ?\ AR_RTSCTSQual##_index : 0)) #define set11nRateFlags(_series, _index) \ ((_series)[_index].RateFlags & HAL_RATESERIES_2040 ? AR_2040_##_index : 0) \ |((_series)[_index].RateFlags & HAL_RATESERIES_HALFGI ? AR_GI##_index : 0) \ |SM((_series)[_index].ChSel, AR_ChainSel##_index) /* * Descriptor Access Functions */ #define VALID_PKT_TYPES \ ((1<ah_txPowerIndexOffset); if (txPower > 63) txPower = 63; ads->ds_ctl0 = (pktLen & AR_FrameLen) | (txPower << AR_XmitPower_S) | (flags & HAL_TXDESC_VEOL ? AR_VEOL : 0) | (flags & HAL_TXDESC_CLRDMASK ? AR_ClrDestMask : 0) | (flags & HAL_TXDESC_INTREQ ? AR_TxIntrReq : 0) ; ads->ds_ctl1 = (type << AR_FrameType_S) | (flags & HAL_TXDESC_NOACK ? AR_NoAck : 0) ; ads->ds_ctl2 = SM(txTries0, AR_XmitDataTries0) | (flags & HAL_TXDESC_DURENA ? AR_DurUpdateEn : 0) ; ads->ds_ctl3 = (txRate0 << AR_XmitRate0_S) ; ads->ds_ctl4 = 0; ads->ds_ctl5 = 0; ads->ds_ctl6 = 0; ads->ds_ctl7 = SM(ahp->ah_tx_chainmask, AR_ChainSel0) | SM(ahp->ah_tx_chainmask, AR_ChainSel1) | SM(ahp->ah_tx_chainmask, AR_ChainSel2) | SM(ahp->ah_tx_chainmask, AR_ChainSel3) ; ads->ds_ctl8 = 0; ads->ds_ctl9 = (txPower << 24); /* XXX? */ ads->ds_ctl10 = (txPower << 24); /* XXX? */ ads->ds_ctl11 = (txPower << 24); /* XXX? */ if (keyIx != HAL_TXKEYIX_INVALID) { /* XXX validate key index */ ads->ds_ctl1 |= SM(keyIx, AR_DestIdx); ads->ds_ctl0 |= AR_DestIdxValid; ads->ds_ctl6 |= SM(ahp->ah_keytype[keyIx], AR_EncrType); } if (flags & RTSCTS) { if (!isValidTxRate(rtsctsRate)) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid rts/cts rate 0x%x\n", __func__, rtsctsRate); return AH_FALSE; } /* XXX validate rtsctsDuration */ ads->ds_ctl0 |= (flags & HAL_TXDESC_CTSENA ? AR_CTSEnable : 0) | (flags & HAL_TXDESC_RTSENA ? AR_RTSEnable : 0) ; ads->ds_ctl2 |= SM(rtsctsDuration, AR_BurstDur); ads->ds_ctl7 |= (rtsctsRate << AR_RTSCTSRate_S); } return AH_TRUE; #undef RTSCTS } HAL_BOOL ar5416SetupXTxDesc(struct ath_hal *ah, struct ath_desc *ds, u_int txRate1, u_int txTries1, u_int txRate2, u_int txTries2, u_int txRate3, u_int txTries3) { struct ar5416_desc *ads = AR5416DESC(ds); if (txTries1) { HALASSERT(isValidTxRate(txRate1)); ads->ds_ctl2 |= SM(txTries1, AR_XmitDataTries1); ads->ds_ctl3 |= (txRate1 << AR_XmitRate1_S); } if (txTries2) { HALASSERT(isValidTxRate(txRate2)); ads->ds_ctl2 |= SM(txTries2, AR_XmitDataTries2); ads->ds_ctl3 |= (txRate2 << AR_XmitRate2_S); } if (txTries3) { HALASSERT(isValidTxRate(txRate3)); ads->ds_ctl2 |= SM(txTries3, AR_XmitDataTries3); ads->ds_ctl3 |= (txRate3 << AR_XmitRate3_S); } return AH_TRUE; } HAL_BOOL ar5416FillTxDesc(struct ath_hal *ah, struct ath_desc *ds, u_int segLen, HAL_BOOL firstSeg, HAL_BOOL lastSeg, const struct ath_desc *ds0) { struct ar5416_desc *ads = AR5416DESC(ds); HALASSERT((segLen &~ AR_BufLen) == 0); if (firstSeg) { /* * First descriptor, don't clobber xmit control data * setup by ar5212SetupTxDesc. */ ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_TxMore); } else if (lastSeg) { /* !firstSeg && lastSeg */ /* * Last descriptor in a multi-descriptor frame, * copy the multi-rate transmit parameters from * the first frame for processing on completion. */ ads->ds_ctl0 = 0; ads->ds_ctl1 = segLen; #ifdef AH_NEED_DESC_SWAP ads->ds_ctl2 = __bswap32(AR5416DESC_CONST(ds0)->ds_ctl2); ads->ds_ctl3 = __bswap32(AR5416DESC_CONST(ds0)->ds_ctl3); #else ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2; ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3; #endif } else { /* !firstSeg && !lastSeg */ /* * Intermediate descriptor in a multi-descriptor frame. */ ads->ds_ctl0 = 0; ads->ds_ctl1 = segLen | AR_TxMore; ads->ds_ctl2 = 0; ads->ds_ctl3 = 0; } /* XXX only on last descriptor? */ OS_MEMZERO(ads->u.tx.status, sizeof(ads->u.tx.status)); return AH_TRUE; } #if 0 HAL_BOOL ar5416ChainTxDesc(struct ath_hal *ah, struct ath_desc *ds, u_int pktLen, u_int hdrLen, HAL_PKT_TYPE type, u_int keyIx, HAL_CIPHER cipher, uint8_t delims, u_int segLen, HAL_BOOL firstSeg, HAL_BOOL lastSeg) { struct ar5416_desc *ads = AR5416DESC(ds); uint32_t *ds_txstatus = AR5416_DS_TXSTATUS(ah,ads); int isaggr = 0; (void) hdrLen; (void) ah; HALASSERT((segLen &~ AR_BufLen) == 0); HALASSERT(isValidPktType(type)); if (type == HAL_PKT_TYPE_AMPDU) { type = HAL_PKT_TYPE_NORMAL; isaggr = 1; } if (!firstSeg) { ath_hal_memzero(ds->ds_hw, AR5416_DESC_TX_CTL_SZ); } ads->ds_ctl0 = (pktLen & AR_FrameLen); ads->ds_ctl1 = (type << AR_FrameType_S) | (isaggr ? (AR_IsAggr | AR_MoreAggr) : 0); ads->ds_ctl2 = 0; ads->ds_ctl3 = 0; if (keyIx != HAL_TXKEYIX_INVALID) { /* XXX validate key index */ ads->ds_ctl1 |= SM(keyIx, AR_DestIdx); ads->ds_ctl0 |= AR_DestIdxValid; } ads->ds_ctl6 = SM(keyType[cipher], AR_EncrType); if (isaggr) { ads->ds_ctl6 |= SM(delims, AR_PadDelim); } if (firstSeg) { ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_TxMore); } else if (lastSeg) { /* !firstSeg && lastSeg */ ads->ds_ctl0 = 0; ads->ds_ctl1 |= segLen; } else { /* !firstSeg && !lastSeg */ /* * Intermediate descriptor in a multi-descriptor frame. */ ads->ds_ctl0 = 0; ads->ds_ctl1 |= segLen | AR_TxMore; } ds_txstatus[0] = ds_txstatus[1] = 0; ds_txstatus[9] &= ~AR_TxDone; return AH_TRUE; } HAL_BOOL ar5416SetupFirstTxDesc(struct ath_hal *ah, struct ath_desc *ds, u_int aggrLen, u_int flags, u_int txPower, u_int txRate0, u_int txTries0, u_int antMode, u_int rtsctsRate, u_int rtsctsDuration) { #define RTSCTS (HAL_TXDESC_RTSENA|HAL_TXDESC_CTSENA) struct ar5416_desc *ads = AR5416DESC(ds); struct ath_hal_5212 *ahp = AH5212(ah); HALASSERT(txTries0 != 0); HALASSERT(isValidTxRate(txRate0)); HALASSERT((flags & RTSCTS) != RTSCTS); /* XXX validate antMode */ txPower = (txPower + ahp->ah_txPowerIndexOffset ); if(txPower > 63) txPower=63; ads->ds_ctl0 |= (txPower << AR_XmitPower_S) | (flags & HAL_TXDESC_VEOL ? AR_VEOL : 0) | (flags & HAL_TXDESC_CLRDMASK ? AR_ClrDestMask : 0) | (flags & HAL_TXDESC_INTREQ ? AR_TxIntrReq : 0); ads->ds_ctl1 |= (flags & HAL_TXDESC_NOACK ? AR_NoAck : 0); ads->ds_ctl2 |= SM(txTries0, AR_XmitDataTries0); ads->ds_ctl3 |= (txRate0 << AR_XmitRate0_S); ads->ds_ctl7 = SM(AH5416(ah)->ah_tx_chainmask, AR_ChainSel0) | SM(AH5416(ah)->ah_tx_chainmask, AR_ChainSel1) | SM(AH5416(ah)->ah_tx_chainmask, AR_ChainSel2) | SM(AH5416(ah)->ah_tx_chainmask, AR_ChainSel3); /* NB: no V1 WAR */ ads->ds_ctl8 = 0; ads->ds_ctl9 = (txPower << 24); ads->ds_ctl10 = (txPower << 24); ads->ds_ctl11 = (txPower << 24); ads->ds_ctl6 &= ~(0xffff); ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen); if (flags & RTSCTS) { /* XXX validate rtsctsDuration */ ads->ds_ctl0 |= (flags & HAL_TXDESC_CTSENA ? AR_CTSEnable : 0) | (flags & HAL_TXDESC_RTSENA ? AR_RTSEnable : 0); ads->ds_ctl2 |= SM(rtsctsDuration, AR_BurstDur); } return AH_TRUE; #undef RTSCTS } HAL_BOOL ar5416SetupLastTxDesc(struct ath_hal *ah, struct ath_desc *ds, const struct ath_desc *ds0) { struct ar5416_desc *ads = AR5416DESC(ds); ads->ds_ctl1 &= ~AR_MoreAggr; ads->ds_ctl6 &= ~AR_PadDelim; /* hack to copy rate info to last desc for later processing */ #ifdef AH_NEED_DESC_SWAP ads->ds_ctl2 = __bswap32(AR5416DESC_CONST(ds0)->ds_ctl2); ads->ds_ctl3 = __bswap32(AR5416DESC_CONST(ds0)->ds_ctl3); #else ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2; ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3; #endif return AH_TRUE; } #endif /* 0 */ #ifdef AH_NEED_DESC_SWAP /* Swap transmit descriptor */ static __inline void ar5416SwapTxDesc(struct ath_desc *ds) { ds->ds_data = __bswap32(ds->ds_data); ds->ds_ctl0 = __bswap32(ds->ds_ctl0); ds->ds_ctl1 = __bswap32(ds->ds_ctl1); ds->ds_hw[0] = __bswap32(ds->ds_hw[0]); ds->ds_hw[1] = __bswap32(ds->ds_hw[1]); ds->ds_hw[2] = __bswap32(ds->ds_hw[2]); ds->ds_hw[3] = __bswap32(ds->ds_hw[3]); } #endif /* * Processing of HW TX descriptor. */ HAL_STATUS ar5416ProcTxDesc(struct ath_hal *ah, struct ath_desc *ds, struct ath_tx_status *ts) { struct ar5416_desc *ads = AR5416DESC(ds); uint32_t *ds_txstatus = AR5416_DS_TXSTATUS(ah,ads); #ifdef AH_NEED_DESC_SWAP if ((ds_txstatus[9] & __bswap32(AR_TxDone)) == 0) return HAL_EINPROGRESS; ar5416SwapTxDesc(ds); #else if ((ds_txstatus[9] & AR_TxDone) == 0) return HAL_EINPROGRESS; #endif /* Update software copies of the HW status */ ts->ts_seqnum = MS(ds_txstatus[9], AR_SeqNum); ts->ts_tstamp = AR_SendTimestamp(ds_txstatus); ts->ts_status = 0; if (ds_txstatus[1] & AR_ExcessiveRetries) ts->ts_status |= HAL_TXERR_XRETRY; if (ds_txstatus[1] & AR_Filtered) ts->ts_status |= HAL_TXERR_FILT; if (ds_txstatus[1] & AR_FIFOUnderrun) ts->ts_status |= HAL_TXERR_FIFO; if (ds_txstatus[9] & AR_TxOpExceeded) ts->ts_status |= HAL_TXERR_XTXOP; if (ds_txstatus[1] & AR_TxTimerExpired) ts->ts_status |= HAL_TXERR_TIMER_EXPIRED; ts->ts_flags = 0; if (ds_txstatus[0] & AR_TxBaStatus) { ts->ts_flags |= HAL_TX_BA; ts->ts_ba_low = AR_BaBitmapLow(ds_txstatus); ts->ts_ba_high = AR_BaBitmapHigh(ds_txstatus); } if (ds->ds_ctl1 & AR_IsAggr) ts->ts_flags |= HAL_TX_AGGR; if (ds_txstatus[1] & AR_DescCfgErr) ts->ts_flags |= HAL_TX_DESC_CFG_ERR; if (ds_txstatus[1] & AR_TxDataUnderrun) ts->ts_flags |= HAL_TX_DATA_UNDERRUN; if (ds_txstatus[1] & AR_TxDelimUnderrun) ts->ts_flags |= HAL_TX_DELIM_UNDERRUN; /* * Extract the transmit rate used and mark the rate as * ``alternate'' if it wasn't the series 0 rate. */ ts->ts_finaltsi = MS(ds_txstatus[9], AR_FinalTxIdx); switch (ts->ts_finaltsi) { case 0: ts->ts_rate = MS(ads->ds_ctl3, AR_XmitRate0); break; case 1: ts->ts_rate = MS(ads->ds_ctl3, AR_XmitRate1); break; case 2: ts->ts_rate = MS(ads->ds_ctl3, AR_XmitRate2); break; case 3: ts->ts_rate = MS(ads->ds_ctl3, AR_XmitRate3); break; } ts->ts_rssi = MS(ds_txstatus[5], AR_TxRSSICombined); ts->ts_rssi_ctl[0] = MS(ds_txstatus[0], AR_TxRSSIAnt00); ts->ts_rssi_ctl[1] = MS(ds_txstatus[0], AR_TxRSSIAnt01); ts->ts_rssi_ctl[2] = MS(ds_txstatus[0], AR_TxRSSIAnt02); ts->ts_rssi_ext[0] = MS(ds_txstatus[5], AR_TxRSSIAnt10); ts->ts_rssi_ext[1] = MS(ds_txstatus[5], AR_TxRSSIAnt11); ts->ts_rssi_ext[2] = MS(ds_txstatus[5], AR_TxRSSIAnt12); ts->ts_evm0 = AR_TxEVM0(ds_txstatus); ts->ts_evm1 = AR_TxEVM1(ds_txstatus); ts->ts_evm2 = AR_TxEVM2(ds_txstatus); ts->ts_shortretry = MS(ds_txstatus[1], AR_RTSFailCnt); ts->ts_longretry = MS(ds_txstatus[1], AR_DataFailCnt); /* * The retry count has the number of un-acked tries for the * final series used. When doing multi-rate retry we must * fixup the retry count by adding in the try counts for * each series that was fully-processed. Beware that this * takes values from the try counts in the final descriptor. * These are not required by the hardware. We assume they * are placed there by the driver as otherwise we have no * access and the driver can't do the calculation because it * doesn't know the descriptor format. */ switch (ts->ts_finaltsi) { case 3: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries2); case 2: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries1); case 1: ts->ts_longretry += MS(ads->ds_ctl2, AR_XmitDataTries0); } /* * These fields are not used. Zero these to preserve compatability * with existing drivers. */ ts->ts_virtcol = MS(ads->ds_ctl1, AR_VirtRetryCnt); ts->ts_antenna = 0; /* We don't switch antennas on Owl*/ /* handle tx trigger level changes internally */ if ((ts->ts_status & HAL_TXERR_FIFO) || (ts->ts_flags & (HAL_TX_DATA_UNDERRUN | HAL_TX_DELIM_UNDERRUN))) ar5212UpdateTxTrigLevel(ah, AH_TRUE); return HAL_OK; } #if 0 HAL_BOOL ar5416SetGlobalTxTimeout(struct ath_hal *ah, u_int tu) { struct ath_hal_5416 *ahp = AH5416(ah); if (tu > 0xFFFF) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad global tx timeout %u\n", __func__, tu); /* restore default handling */ ahp->ah_globaltxtimeout = (u_int) -1; return AH_FALSE; } OS_REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu); ahp->ah_globaltxtimeout = tu; return AH_TRUE; } u_int ar5416GetGlobalTxTimeout(struct ath_hal *ah) { return MS(OS_REG_READ(ah, AR_GTXTO), AR_GTXTO_TIMEOUT_LIMIT); } void ar5416Set11nRateScenario(struct ath_hal *ah, struct ath_desc *ds, u_int durUpdateEn, u_int rtsctsRate, HAL_11N_RATE_SERIES series[], u_int nseries) { struct ar5416_desc *ads = AR5416DESC(ds); HALASSERT(nseries == 4); (void)nseries; ads->ds_ctl2 = set11nTries(series, 0) | set11nTries(series, 1) | set11nTries(series, 2) | set11nTries(series, 3) | (durUpdateEn ? AR_DurUpdateEn : 0); ads->ds_ctl3 = set11nRate(series, 0) | set11nRate(series, 1) | set11nRate(series, 2) | set11nRate(series, 3); ads->ds_ctl4 = set11nPktDurRTSCTS(series, 0) | set11nPktDurRTSCTS(series, 1); ads->ds_ctl5 = set11nPktDurRTSCTS(series, 2) | set11nPktDurRTSCTS(series, 3); ads->ds_ctl7 = set11nRateFlags(series, 0) | set11nRateFlags(series, 1) | set11nRateFlags(series, 2) | set11nRateFlags(series, 3) | SM(rtsctsRate, AR_RTSCTSRate); /* * Enable RTSCTS if any of the series is flagged for RTSCTS, * but only if CTS is not enabled. */ /* * FIXME : the entire RTS/CTS handling should be moved to this * function (by passing the global RTS/CTS flags to this function). * currently it is split between this function and the * setupFiirstDescriptor. with this current implementation there * is an implicit assumption that setupFirstDescriptor is called * before this function. */ if (((series[0].RateFlags & HAL_RATESERIES_RTS_CTS) || (series[1].RateFlags & HAL_RATESERIES_RTS_CTS) || (series[2].RateFlags & HAL_RATESERIES_RTS_CTS) || (series[3].RateFlags & HAL_RATESERIES_RTS_CTS) ) && (ads->ds_ctl0 & AR_CTSEnable) == 0) { ads->ds_ctl0 |= AR_RTSEnable; ads->ds_ctl0 &= ~AR_CTSEnable; } } void ar5416Set11nAggrMiddle(struct ath_hal *ah, struct ath_desc *ds, u_int numDelims) { struct ar5416_desc *ads = AR5416DESC(ds); uint32_t *ds_txstatus = AR5416_DS_TXSTATUS(ah,ads); ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr); ads->ds_ctl6 &= ~AR_PadDelim; ads->ds_ctl6 |= SM(numDelims, AR_PadDelim); ads->ds_ctl6 &= ~AR_AggrLen; /* * Clear the TxDone status here, may need to change * func name to reflect this */ ds_txstatus[9] &= ~AR_TxDone; } void ar5416Clr11nAggr(struct ath_hal *ah, struct ath_desc *ds) { struct ar5416_desc *ads = AR5416DESC(ds); ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr); ads->ds_ctl6 &= ~AR_PadDelim; ads->ds_ctl6 &= ~AR_AggrLen; } void ar5416Set11nBurstDuration(struct ath_hal *ah, struct ath_desc *ds, u_int burstDuration) { struct ar5416_desc *ads = AR5416DESC(ds); ads->ds_ctl2 &= ~AR_BurstDur; ads->ds_ctl2 |= SM(burstDuration, AR_BurstDur); } #endif