root/usr/src/uts/common/io/arn/arn_mac.c
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Copyright (c) 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.
 */

#include <sys/ddi.h>

#include "arn_core.h"
#include "arn_hw.h"
#include "arn_reg.h"
#include "arn_phy.h"

/* ARGSUSED */
static void
ath9k_hw_set_txq_interrupts(struct ath_hal *ah,
    struct ath9k_tx_queue_info *qi)
{
        struct ath_hal_5416 *ahp = AH5416(ah);

        ARN_DBG((ARN_DBG_INTERRUPT,
            "%s: tx ok 0x%x err 0x%x desc 0x%x eol 0x%x urn 0x%x\n",
            __func__, ahp->ah_txOkInterruptMask,
            ahp->ah_txErrInterruptMask, ahp->ah_txDescInterruptMask,
            ahp->ah_txEolInterruptMask, ahp->ah_txUrnInterruptMask));

        REG_WRITE(ah, AR_IMR_S0,
            SM(ahp->ah_txOkInterruptMask, AR_IMR_S0_QCU_TXOK) |
            SM(ahp->ah_txDescInterruptMask, AR_IMR_S0_QCU_TXDESC));
        REG_WRITE(ah, AR_IMR_S1,
            SM(ahp->ah_txErrInterruptMask, AR_IMR_S1_QCU_TXERR)|
            SM(ahp->ah_txEolInterruptMask, AR_IMR_S1_QCU_TXEOL));
        REG_RMW_FIELD(ah, AR_IMR_S2,
            AR_IMR_S2_QCU_TXURN, ahp->ah_txUrnInterruptMask);
}

void
ath9k_hw_dmaRegDump(struct ath_hal *ah)
{
        uint32_t val[ATH9K_NUM_DMA_DEBUG_REGS];
        int qcuOffset = 0, dcuOffset = 0;
        uint32_t *qcuBase = &val[0], *dcuBase = &val[4];
        int i;

        REG_WRITE(ah, AR_MACMISC,
            ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
            (AR_MACMISC_MISC_OBS_BUS_1 <<
            AR_MACMISC_MISC_OBS_BUS_MSB_S)));

        ARN_DBG((ARN_DBG_REG_IO, "Raw DMA Debug values:\n"));

        for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
                if (i % 4 == 0)
                        ARN_DBG((ARN_DBG_REG_IO, "\n"));

                val[i] = REG_READ(ah, AR_DMADBG_0 + (i * sizeof (uint32_t)));
                ARN_DBG((ARN_DBG_REG_IO, "%d: %08x ", i, val[i]));
        }

        ARN_DBG((ARN_DBG_REG_IO, "\n\n"));
        ARN_DBG((ARN_DBG_REG_IO,
            "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n"));

        for (i = 0; i < ATH9K_NUM_QUEUES;
            i++, qcuOffset += 4, dcuOffset += 5) {
                if (i == 8) {
                        qcuOffset = 0;
                        qcuBase++;
                }

                if (i == 6) {
                        dcuOffset = 0;
                        dcuBase++;
                }

                ARN_DBG((ARN_DBG_REG_IO,
                    "%2d          %2x      %1x     %2x           %2x\n",
                    i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
                    (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
                    val[2] & (0x7 << (i * 3)) >> (i * 3),
                    (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset));
        }

        ARN_DBG((ARN_DBG_REG_IO, "\n"));
        ARN_DBG((ARN_DBG_REG_IO,
            "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
            (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22));
        ARN_DBG((ARN_DBG_REG_IO,
            "qcu_complete state: %2x    dcu_complete state:     %2x\n",
            (val[3] & 0x1c000000) >> 26, (val[6] & 0x3)));
        ARN_DBG((ARN_DBG_REG_IO,
            "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
            (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27));
        ARN_DBG((ARN_DBG_REG_IO,
            "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
            (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10));
        ARN_DBG((ARN_DBG_REG_IO,
            "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
            (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12));
        ARN_DBG((ARN_DBG_REG_IO,
            "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
            (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17));

        ARN_DBG((ARN_DBG_REG_IO, "pcu observe 0x%x \n",
            REG_READ(ah, AR_OBS_BUS_1)));
        ARN_DBG((ARN_DBG_REG_IO,
            "AR_CR 0x%x \n", REG_READ(ah, AR_CR)));
}

uint32_t
ath9k_hw_gettxbuf(struct ath_hal *ah, uint32_t q)
{
        return (REG_READ(ah, AR_QTXDP(q)));
}

boolean_t
ath9k_hw_puttxbuf(struct ath_hal *ah, uint32_t q, uint32_t txdp)
{
        REG_WRITE(ah, AR_QTXDP(q), txdp);

        return (B_TRUE);
}

boolean_t
ath9k_hw_txstart(struct ath_hal *ah, uint32_t q)
{
        ARN_DBG((ARN_DBG_XMIT, "arn: ath9k_hw_txstart(): "
            "tramist queue is %u\n", q));

        REG_WRITE(ah, AR_Q_TXE, 1 << q);

        return (B_TRUE);
}

uint32_t
ath9k_hw_numtxpending(struct ath_hal *ah, uint32_t q)
{
        uint32_t npend;

        npend = REG_READ(ah, AR_QSTS(q)) & AR_Q_STS_PEND_FR_CNT;
        if (npend == 0) {

                if (REG_READ(ah, AR_Q_TXE) & (1 << q))
                        npend = 1;
        }

        return (npend);
}

boolean_t
ath9k_hw_updatetxtriglevel(struct ath_hal *ah, boolean_t bIncTrigLevel)
{
        struct ath_hal_5416 *ahp = AH5416(ah);
        uint32_t txcfg, curLevel, newLevel;
        enum ath9k_int omask;

        if (ah->ah_txTrigLevel >= MAX_TX_FIFO_THRESHOLD)
                return (B_FALSE);

        omask = ath9k_hw_set_interrupts(ah,
            ahp->ah_maskReg & ~ATH9K_INT_GLOBAL);

        txcfg = REG_READ(ah, AR_TXCFG);
        curLevel = MS(txcfg, AR_FTRIG);
        newLevel = curLevel;
        if (bIncTrigLevel) {
                if (curLevel < MAX_TX_FIFO_THRESHOLD)
                        newLevel++;
        } else if (curLevel > MIN_TX_FIFO_THRESHOLD)
                newLevel--;
        if (newLevel != curLevel)
                REG_WRITE(ah, AR_TXCFG,
                    (txcfg & ~AR_FTRIG) | SM(newLevel, AR_FTRIG));

        (void) ath9k_hw_set_interrupts(ah, omask);

        ah->ah_txTrigLevel = (uint16_t)newLevel; /* ??? */

        return (newLevel != curLevel);
}

boolean_t
ath9k_hw_stoptxdma(struct ath_hal *ah, uint32_t q)
{
        uint32_t tsfLow, j, wait;

        REG_WRITE(ah, AR_Q_TXD, 1 << q);

        for (wait = 1000; wait != 0; wait--) {
                if (ath9k_hw_numtxpending(ah, q) == 0)
                        break;
                drv_usecwait(100);
        }

        if (ath9k_hw_numtxpending(ah, q)) {
                ARN_DBG((ARN_DBG_QUEUE,
                    "%s: Num of pending TX Frames %d on Q %d\n",
                    __func__, ath9k_hw_numtxpending(ah, q), q));

                for (j = 0; j < 2; j++) {
                        tsfLow = REG_READ(ah, AR_TSF_L32);
                        REG_WRITE(ah, AR_QUIET2, SM(10, AR_QUIET2_QUIET_DUR));
                        REG_WRITE(ah, AR_QUIET_PERIOD, 100);
                        REG_WRITE(ah, AR_NEXT_QUIET_TIMER, tsfLow >> 10);
                        REG_SET_BIT(ah, AR_TIMER_MODE, AR_QUIET_TIMER_EN);

                        if ((REG_READ(ah, AR_TSF_L32) >> 10) == (tsfLow >> 10))
                                break;
                        ARN_DBG((ARN_DBG_QUEUE,
                            "%s: TSF have moved while trying to set "
                            "quiet time TSF: 0x%08x\n",
                            __func__, tsfLow));
                }

                REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);

                drv_usecwait(200);
                REG_CLR_BIT(ah, AR_TIMER_MODE, AR_QUIET_TIMER_EN);

                wait = 1000;

                while (ath9k_hw_numtxpending(ah, q)) {
                        if ((--wait) == 0) {
                                ARN_DBG((ARN_DBG_XMIT,
                                    "%s: Failed to stop Tx DMA in 100 "
                                    "msec after killing last frame\n",
                                    __func__));
                                break;
                        }
                        drv_usecwait(100);
                }

                REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
        }

        REG_WRITE(ah, AR_Q_TXD, 0);

        return (wait != 0);
}

/* ARGSUSED */
boolean_t
ath9k_hw_filltxdesc(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t segLen, boolean_t firstSeg,
    boolean_t lastSeg, const struct ath_desc *ds0)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        if (firstSeg) {
                ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_TxMore);
        } else if (lastSeg) {
                ads->ds_ctl0 = 0;
                ads->ds_ctl1 = segLen;
                ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2;
                ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3;
        } else {
                ads->ds_ctl0 = 0;
                ads->ds_ctl1 = segLen | AR_TxMore;
                ads->ds_ctl2 = 0;
                ads->ds_ctl3 = 0;
        }
        ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
        ads->ds_txstatus2 = ads->ds_txstatus3 = 0;
        ads->ds_txstatus4 = ads->ds_txstatus5 = 0;
        ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
        ads->ds_txstatus8 = ads->ds_txstatus9 = 0;

        return (B_TRUE);
}

/* ARGSUSED */
void
ath9k_hw_cleartxdesc(struct ath_hal *ah, struct ath_desc *ds)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
        ads->ds_txstatus2 = ads->ds_txstatus3 = 0;
        ads->ds_txstatus4 = ads->ds_txstatus5 = 0;
        ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
        ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
}

int
ath9k_hw_txprocdesc(struct ath_hal *ah, struct ath_desc *ds)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        if ((ads->ds_txstatus9 & AR_TxDone) == 0)
                return (EINPROGRESS);

        ds->ds_txstat.ts_seqnum = MS(ads->ds_txstatus9, AR_SeqNum);
        ds->ds_txstat.ts_tstamp = ads->AR_SendTimestamp;
        ds->ds_txstat.ts_status = 0;
        ds->ds_txstat.ts_flags = 0;

        if (ads->ds_txstatus1 & AR_ExcessiveRetries) {
                ARN_DBG((ARN_DBG_INTERRUPT, "arn: ATH9K_TXERR_XRETRY\n"));
                ds->ds_txstat.ts_status |= ATH9K_TXERR_XRETRY;
        }
        if (ads->ds_txstatus1 & AR_Filtered) {
                ARN_DBG((ARN_DBG_INTERRUPT, "arn: AR_Filtered\n"));
                ds->ds_txstat.ts_status |= ATH9K_TXERR_FILT;
        }
        if (ads->ds_txstatus1 & AR_FIFOUnderrun) {
                ARN_DBG((ARN_DBG_INTERRUPT, "arn: ATH9K_TXERR_FIFO\n"));
                ds->ds_txstat.ts_status |= ATH9K_TXERR_FIFO;
                (void) ath9k_hw_updatetxtriglevel(ah, B_TRUE);
        }
        if (ads->ds_txstatus9 & AR_TxOpExceeded) {
                ARN_DBG((ARN_DBG_INTERRUPT, "arn: ATH9K_TXERR_XTXOP\n"));
                ds->ds_txstat.ts_status |= ATH9K_TXERR_XTXOP;
        }
        if (ads->ds_txstatus1 & AR_TxTimerExpired) {
                ARN_DBG((ARN_DBG_INTERRUPT,
                "arn: ATH9K_TXERR_TIMER_EXPIRED\n"));
                ds->ds_txstat.ts_status |= ATH9K_TXERR_TIMER_EXPIRED;
        }

        if (ads->ds_txstatus1 & AR_DescCfgErr) {
                ARN_DBG((ARN_DBG_INTERRUPT, "arn: ATH9K_TX_DESC_CFG_ERR\n"));
                ds->ds_txstat.ts_flags |= ATH9K_TX_DESC_CFG_ERR;
        }
        if (ads->ds_txstatus1 & AR_TxDataUnderrun) {
                ds->ds_txstat.ts_flags |= ATH9K_TX_DATA_UNDERRUN;
                (void) ath9k_hw_updatetxtriglevel(ah, B_TRUE);
        }
        if (ads->ds_txstatus1 & AR_TxDelimUnderrun) {
                ds->ds_txstat.ts_flags |= ATH9K_TX_DELIM_UNDERRUN;
                (void) ath9k_hw_updatetxtriglevel(ah, B_TRUE);
        }
        if (ads->ds_txstatus0 & AR_TxBaStatus) {
                ds->ds_txstat.ts_flags |= ATH9K_TX_BA;
                ds->ds_txstat.ba_low = ads->AR_BaBitmapLow;
                ds->ds_txstat.ba_high = ads->AR_BaBitmapHigh;
        }

        ds->ds_txstat.ts_rateindex = MS(ads->ds_txstatus9, AR_FinalTxIdx);
        switch (ds->ds_txstat.ts_rateindex) {
        case 0:
                ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate0);
                break;
        case 1:
                ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate1);
                break;
        case 2:
                ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate2);
                break;
        case 3:
                ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate3);
                break;
        }

        ds->ds_txstat.ts_rssi = MS(ads->ds_txstatus5, AR_TxRSSICombined);
        ds->ds_txstat.ts_rssi_ctl0 = MS(ads->ds_txstatus0, AR_TxRSSIAnt00);
        ds->ds_txstat.ts_rssi_ctl1 = MS(ads->ds_txstatus0, AR_TxRSSIAnt01);
        ds->ds_txstat.ts_rssi_ctl2 = MS(ads->ds_txstatus0, AR_TxRSSIAnt02);
        ds->ds_txstat.ts_rssi_ext0 = MS(ads->ds_txstatus5, AR_TxRSSIAnt10);
        ds->ds_txstat.ts_rssi_ext1 = MS(ads->ds_txstatus5, AR_TxRSSIAnt11);
        ds->ds_txstat.ts_rssi_ext2 = MS(ads->ds_txstatus5, AR_TxRSSIAnt12);
        ds->ds_txstat.evm0 = ads->AR_TxEVM0;
        ds->ds_txstat.evm1 = ads->AR_TxEVM1;
        ds->ds_txstat.evm2 = ads->AR_TxEVM2;
        ds->ds_txstat.ts_shortretry = MS(ads->ds_txstatus1, AR_RTSFailCnt);
        ds->ds_txstat.ts_longretry = MS(ads->ds_txstatus1, AR_DataFailCnt);
        ds->ds_txstat.ts_virtcol = MS(ads->ds_txstatus1, AR_VirtRetryCnt);
        ds->ds_txstat.ts_antenna = 1;

        return (0);
}

void
ath9k_hw_set11n_txdesc(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t pktLen, enum ath9k_pkt_type type, uint32_t txPower,
    uint32_t keyIx, enum ath9k_key_type keyType, uint32_t flags)
{
        struct ar5416_desc *ads = AR5416DESC(ds);
        struct ath_hal_5416 *ahp = AH5416(ah);

        txPower += ahp->ah_txPowerIndexOffset;
        if (txPower > 63)
                txPower = 63;

        ads->ds_ctl0 = (pktLen & AR_FrameLen) |
            (flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) |
            SM(txPower, AR_XmitPower) |
            (flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) |
            (flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0) |
            (flags & ATH9K_TXDESC_INTREQ ? AR_TxIntrReq : 0) |
            (keyIx != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0);

        ads->ds_ctl1 =
            (keyIx != ATH9K_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0) |
            SM(type, AR_FrameType) |
            (flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0) |
            (flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0) |
            (flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);

        ads->ds_ctl6 = SM(keyType, AR_EncrType);

        if (AR_SREV_9285(ah)) {
                ads->ds_ctl8 = 0;
                ads->ds_ctl9 = 0;
                ads->ds_ctl10 = 0;
                ads->ds_ctl11 = 0;
        }

}

/* ARGSUSED */
void
ath9k_hw_set11n_ratescenario(struct ath_hal *ah, struct ath_desc *ds,
    struct ath_desc *lastds,
    uint32_t durUpdateEn, uint32_t rtsctsRate,
    uint32_t rtsctsDuration,
    struct ath9k_11n_rate_series series[],
    uint32_t nseries, uint32_t flags)
{
        struct ar5416_desc *ads = AR5416DESC(ds);
        struct ar5416_desc *last_ads = AR5416DESC(lastds);
        uint32_t ds_ctl0;

        (void) nseries;
        (void) rtsctsDuration;

        if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) {
                ds_ctl0 = ads->ds_ctl0;

                if (flags & ATH9K_TXDESC_RTSENA) {
                        ds_ctl0 &= ~AR_CTSEnable;
                        ds_ctl0 |= AR_RTSEnable;
                } else {
                        ds_ctl0 &= ~AR_RTSEnable;
                        ds_ctl0 |= AR_CTSEnable;
                }

                ads->ds_ctl0 = ds_ctl0;
        } else {
                ads->ds_ctl0 =
                    (ads->ds_ctl0 & ~(AR_RTSEnable | AR_CTSEnable));
        }

        ads->ds_ctl2 = set11nTries(series, 0) |
            set11nTries(series, 1) |
            set11nTries(series, 2) |
            set11nTries(series, 3) |
            (durUpdateEn ? AR_DurUpdateEna : 0) |
            SM(0, AR_BurstDur);

        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);
        last_ads->ds_ctl2 = ads->ds_ctl2;
        last_ads->ds_ctl3 = ads->ds_ctl3;
}

/* ARGSUSED */
void
ath9k_hw_set11n_aggr_first(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t aggrLen)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
        ads->ds_ctl6 &= ~AR_AggrLen;
        ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen);
}

/* ARGSUSED */
void
ath9k_hw_set11n_aggr_middle(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t numDelims)
{
        struct ar5416_desc *ads = AR5416DESC(ds);
        unsigned int ctl6;

        ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);

        ctl6 = ads->ds_ctl6;
        ctl6 &= ~AR_PadDelim;
        ctl6 |= SM(numDelims, AR_PadDelim);
        ads->ds_ctl6 = ctl6;
}

/* ARGSUSED */
void
ath9k_hw_set11n_aggr_last(struct ath_hal *ah, struct ath_desc *ds)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        ads->ds_ctl1 |= AR_IsAggr;
        ads->ds_ctl1 &= ~AR_MoreAggr;
        ads->ds_ctl6 &= ~AR_PadDelim;
}

/* ARGSUSED */
void
ath9k_hw_clr11n_aggr(struct ath_hal *ah, struct ath_desc *ds)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr);
}

/* ARGSUSED */
void
ath9k_hw_set11n_burstduration(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t burstDuration)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        ads->ds_ctl2 &= ~AR_BurstDur;
        ads->ds_ctl2 |= SM(burstDuration, AR_BurstDur);
}

/* ARGSUSED */
void
ath9k_hw_set11n_virtualmorefrag(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t vmf)
{
        struct ar5416_desc *ads = AR5416DESC(ds);

        if (vmf)
                ads->ds_ctl0 |= AR_VirtMoreFrag;
        else
                ads->ds_ctl0 &= ~AR_VirtMoreFrag;
}

void
ath9k_hw_gettxintrtxqs(struct ath_hal *ah, uint32_t *txqs)
{
        struct ath_hal_5416 *ahp = AH5416(ah);

        *txqs &= ahp->ah_intrTxqs;
        ahp->ah_intrTxqs &= ~(*txqs);
}

boolean_t
ath9k_hw_set_txq_props(struct ath_hal *ah, int q,
    const struct ath9k_tx_queue_info *qinfo)
{
        uint32_t cw;
        struct ath_hal_5416 *ahp = AH5416(ah);
        struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
        struct ath9k_tx_queue_info *qi;

        if (q >= pCap->total_queues) {
                ARN_DBG((ARN_DBG_QUEUE, "%s: invalid queue num %u\n",
                    __func__, q));
                return (B_FALSE);
        }

        qi = &ahp->ah_txq[q];
        if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
                ARN_DBG((ARN_DBG_QUEUE, "%s: inactive queue\n",
                    __func__));
                return (B_FALSE);
        }

        ARN_DBG((ARN_DBG_QUEUE, "%s: queue %p\n", __func__, qi));

        qi->tqi_ver = qinfo->tqi_ver;
        qi->tqi_subtype = qinfo->tqi_subtype;
        qi->tqi_qflags = qinfo->tqi_qflags;
        qi->tqi_priority = qinfo->tqi_priority;
        if (qinfo->tqi_aifs != ATH9K_TXQ_USEDEFAULT)
                qi->tqi_aifs = min(qinfo->tqi_aifs, 255U);
        else
                qi->tqi_aifs = INIT_AIFS;
        if (qinfo->tqi_cwmin != ATH9K_TXQ_USEDEFAULT) {
                cw = min(qinfo->tqi_cwmin, 1024U);
                qi->tqi_cwmin = 1;
                while (qi->tqi_cwmin < cw)
                        qi->tqi_cwmin = (qi->tqi_cwmin << 1) | 1;
        } else
                qi->tqi_cwmin = qinfo->tqi_cwmin;
        if (qinfo->tqi_cwmax != ATH9K_TXQ_USEDEFAULT) {
                cw = min(qinfo->tqi_cwmax, 1024U);
                qi->tqi_cwmax = 1;
                while (qi->tqi_cwmax < cw)
                        qi->tqi_cwmax = (qi->tqi_cwmax << 1) | 1;
        } else
                qi->tqi_cwmax = INIT_CWMAX;

        if (qinfo->tqi_shretry != 0)
                qi->tqi_shretry = min((uint32_t)qinfo->tqi_shretry, 15U);
        else
                qi->tqi_shretry = INIT_SH_RETRY;
        if (qinfo->tqi_lgretry != 0)
                qi->tqi_lgretry = min((uint32_t)qinfo->tqi_lgretry, 15U);
        else
                qi->tqi_lgretry = INIT_LG_RETRY;
        qi->tqi_cbrPeriod = qinfo->tqi_cbrPeriod;
        qi->tqi_cbrOverflowLimit = qinfo->tqi_cbrOverflowLimit;
        qi->tqi_burstTime = qinfo->tqi_burstTime;
        qi->tqi_readyTime = qinfo->tqi_readyTime;

        switch (qinfo->tqi_subtype) {
        case ATH9K_WME_UPSD:
                if (qi->tqi_type == ATH9K_TX_QUEUE_DATA)
                        qi->tqi_intFlags = ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS;
                break;
        default:
                break;
        }

        return (B_TRUE);
}

boolean_t
ath9k_hw_get_txq_props(struct ath_hal *ah, int q,
    struct ath9k_tx_queue_info *qinfo)
{
        struct ath_hal_5416 *ahp = AH5416(ah);
        struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
        struct ath9k_tx_queue_info *qi;

        if (q >= pCap->total_queues) {
                ARN_DBG((ARN_DBG_QUEUE, "arn: ath9k_hw_get_txq_props(): "
                    "invalid queue num %u\n", q));
                return (B_FALSE);
        }

        qi = &ahp->ah_txq[q];
        if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
                ARN_DBG((ARN_DBG_QUEUE, "arn: ath9k_hw_get_txq_props(): "
                    "inactive queue\n"));
                return (B_FALSE);
        }

        qinfo->tqi_qflags = qi->tqi_qflags;
        qinfo->tqi_ver = qi->tqi_ver;
        qinfo->tqi_subtype = qi->tqi_subtype;
        qinfo->tqi_qflags = qi->tqi_qflags;
        qinfo->tqi_priority = qi->tqi_priority;
        qinfo->tqi_aifs = qi->tqi_aifs;
        qinfo->tqi_cwmin = qi->tqi_cwmin;
        qinfo->tqi_cwmax = qi->tqi_cwmax;
        qinfo->tqi_shretry = qi->tqi_shretry;
        qinfo->tqi_lgretry = qi->tqi_lgretry;
        qinfo->tqi_cbrPeriod = qi->tqi_cbrPeriod;
        qinfo->tqi_cbrOverflowLimit = qi->tqi_cbrOverflowLimit;
        qinfo->tqi_burstTime = qi->tqi_burstTime;
        qinfo->tqi_readyTime = qi->tqi_readyTime;

        return (B_TRUE);
}

int
ath9k_hw_setuptxqueue(struct ath_hal *ah, enum ath9k_tx_queue type,
    const struct ath9k_tx_queue_info *qinfo)
{
        struct ath_hal_5416 *ahp = AH5416(ah);
        struct ath9k_tx_queue_info *qi;
        struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
        int q;

        switch (type) {
        case ATH9K_TX_QUEUE_BEACON:
                q = pCap->total_queues - 1;
                break;
        case ATH9K_TX_QUEUE_CAB:
                q = pCap->total_queues - 2;
                break;
        case ATH9K_TX_QUEUE_PSPOLL:
                q = 1;
                break;
        case ATH9K_TX_QUEUE_UAPSD:
                q = pCap->total_queues - 3;
                break;
        case ATH9K_TX_QUEUE_DATA:
                for (q = 0; q < pCap->total_queues; q++)
                        if (ahp->ah_txq[q].tqi_type ==
                            ATH9K_TX_QUEUE_INACTIVE)
                                break;
                if (q == pCap->total_queues) {
                        ARN_DBG((ARN_DBG_QUEUE,
                            "arn: ath9k_hw_setuptxqueue(): "
                            "no available tx queue\n"));
                        return (-1);
                }
                break;
        default:
                ARN_DBG((ARN_DBG_QUEUE,
                    "arn: ath9k_hw_setuptxqueue(): "
                    "bad tx queue type %u\n", type));

                return (-1);
        }

        ARN_DBG((ARN_DBG_QUEUE, "arn: ath9k_hw_setuptxqueue(): "
            "queue %u\n", q));

        qi = &ahp->ah_txq[q];
        if (qi->tqi_type != ATH9K_TX_QUEUE_INACTIVE) {
                ARN_DBG((ARN_DBG_QUEUE, "arn: ath9k_hw_setuptxqueue(): "
                    "tx queue %u already active\n", q));

                return (-1);
        }
        (void) memset(qi, 0, sizeof (struct ath9k_tx_queue_info));
        qi->tqi_type = type;
        if (qinfo == NULL) {
                qi->tqi_qflags = TXQ_FLAG_TXOKINT_ENABLE |
                    TXQ_FLAG_TXERRINT_ENABLE |
                    TXQ_FLAG_TXDESCINT_ENABLE |
                    TXQ_FLAG_TXURNINT_ENABLE;
                qi->tqi_aifs = INIT_AIFS;
                qi->tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
                qi->tqi_cwmax = INIT_CWMAX;
                qi->tqi_shretry = INIT_SH_RETRY;
                qi->tqi_lgretry = INIT_LG_RETRY;
                qi->tqi_physCompBuf = 0;
        } else {
                qi->tqi_physCompBuf = qinfo->tqi_physCompBuf;
                (void) ath9k_hw_set_txq_props(ah, q, qinfo);
        }

        return (q);
}

boolean_t
ath9k_hw_releasetxqueue(struct ath_hal *ah, uint32_t q)
{
        struct ath_hal_5416 *ahp = AH5416(ah);
        struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
        struct ath9k_tx_queue_info *qi;

        if (q >= pCap->total_queues) {
                ARN_DBG((ARN_DBG_QUEUE, "arn: arn_txq_setup(): "
                    "invalid queue num %u\n", q));
                return (B_FALSE);
        }
        qi = &ahp->ah_txq[q];
        if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
                ARN_DBG((ARN_DBG_QUEUE, "arn: arn_txq_setup(): "
                    "inactive queue %u\n", q));
                return (B_FALSE);
        }

        ARN_DBG((ARN_DBG_QUEUE, "arn: arn_txq_setup(): "
            "release queue %u\n", q));


        qi->tqi_type = ATH9K_TX_QUEUE_INACTIVE;
        ahp->ah_txOkInterruptMask &= ~(1 << q);
        ahp->ah_txErrInterruptMask &= ~(1 << q);
        ahp->ah_txDescInterruptMask &= ~(1 << q);
        ahp->ah_txEolInterruptMask &= ~(1 << q);
        ahp->ah_txUrnInterruptMask &= ~(1 << q);
        ath9k_hw_set_txq_interrupts(ah, qi);

        return (B_TRUE);
}

boolean_t
ath9k_hw_resettxqueue(struct ath_hal *ah, uint32_t q)
{
        struct ath_hal_5416 *ahp = AH5416(ah);
        struct ath9k_hw_capabilities *pCap = &ah->ah_caps;
        struct ath9k_channel *chan = ah->ah_curchan;
        struct ath9k_tx_queue_info *qi;
        uint32_t cwMin, chanCwMin, value;

        if (q >= pCap->total_queues) {
                ARN_DBG((ARN_DBG_QUEUE, "%s: invalid queue num %u\n",
                    __func__, q));

                return (B_FALSE);
        }

        qi = &ahp->ah_txq[q];
        if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) {
                ARN_DBG((ARN_DBG_QUEUE, "%s: inactive queue %u\n",
                    __func__, q));

                return (B_TRUE);
        }

        ARN_DBG((ARN_DBG_QUEUE,
            "%s: reset queue %u\n", __func__, q));

        if (qi->tqi_cwmin == ATH9K_TXQ_USEDEFAULT) {
                if (chan && IS_CHAN_B(chan))
                        chanCwMin = INIT_CWMIN_11B;
                else
                        chanCwMin = INIT_CWMIN;

                for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1) {
                        /* Nothing to do */
                }
        } else
                cwMin = qi->tqi_cwmin;

        REG_WRITE(ah, AR_DLCL_IFS(q),
            SM(cwMin, AR_D_LCL_IFS_CWMIN) |
            SM(qi->tqi_cwmax, AR_D_LCL_IFS_CWMAX) |
            SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));

        REG_WRITE(ah, AR_DRETRY_LIMIT(q),
            SM(INIT_SSH_RETRY, AR_D_RETRY_LIMIT_STA_SH) |
            SM(INIT_SLG_RETRY, AR_D_RETRY_LIMIT_STA_LG) |
            SM(qi->tqi_shretry, AR_D_RETRY_LIMIT_FR_SH));

        REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ);
        REG_WRITE(ah, AR_DMISC(q),
            AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2);

        if (qi->tqi_cbrPeriod) {
                REG_WRITE(ah, AR_QCBRCFG(q),
                    SM(qi->tqi_cbrPeriod, AR_Q_CBRCFG_INTERVAL) |
                    SM(qi->tqi_cbrOverflowLimit, AR_Q_CBRCFG_OVF_THRESH));
                REG_WRITE(ah, AR_QMISC(q),
                    REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_FSP_CBR |
                    (qi->tqi_cbrOverflowLimit ?
                    AR_Q_MISC_CBR_EXP_CNTR_LIMIT_EN : 0));
        }
        if (qi->tqi_readyTime && (qi->tqi_type != ATH9K_TX_QUEUE_CAB)) {
                REG_WRITE(ah, AR_QRDYTIMECFG(q),
                    SM(qi->tqi_readyTime, AR_Q_RDYTIMECFG_DURATION) |
                    AR_Q_RDYTIMECFG_EN);
        }

        REG_WRITE(ah, AR_DCHNTIME(q),
            SM(qi->tqi_burstTime, AR_D_CHNTIME_DUR) |
            (qi->tqi_burstTime ? AR_D_CHNTIME_EN : 0));

        if (qi->tqi_burstTime &&
            (qi->tqi_qflags & TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE)) {
                REG_WRITE(ah, AR_QMISC(q),
                    REG_READ(ah, AR_QMISC(q)) |
                    AR_Q_MISC_RDYTIME_EXP_POLICY);

        }

        if (qi->tqi_qflags & TXQ_FLAG_BACKOFF_DISABLE) {
                REG_WRITE(ah, AR_DMISC(q),
                    REG_READ(ah, AR_DMISC(q)) |
                    AR_D_MISC_POST_FR_BKOFF_DIS);
        }
        if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) {
                REG_WRITE(ah, AR_DMISC(q),
                    REG_READ(ah, AR_DMISC(q)) |
                    AR_D_MISC_FRAG_BKOFF_EN);
        }
        switch (qi->tqi_type) {
        case ATH9K_TX_QUEUE_BEACON:
                REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q)) |
                    AR_Q_MISC_FSP_DBA_GATED |
                    AR_Q_MISC_BEACON_USE |
                    AR_Q_MISC_CBR_INCR_DIS1);

                REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
                    (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
                    AR_D_MISC_ARB_LOCKOUT_CNTRL_S) |
                    AR_D_MISC_BEACON_USE |
                    AR_D_MISC_POST_FR_BKOFF_DIS);
                break;
        case ATH9K_TX_QUEUE_CAB:
                REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q)) |
                    AR_Q_MISC_FSP_DBA_GATED |
                    AR_Q_MISC_CBR_INCR_DIS1 |
                    AR_Q_MISC_CBR_INCR_DIS0);
                value = (qi->tqi_readyTime -
                    (ah->ah_config.sw_beacon_response_time -
                    ah->ah_config.dma_beacon_response_time) -
                    ah->ah_config.additional_swba_backoff) * 1024;
                REG_WRITE(ah, AR_QRDYTIMECFG(q),
                    value | AR_Q_RDYTIMECFG_EN);
                REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
                    (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
                    AR_D_MISC_ARB_LOCKOUT_CNTRL_S));
                break;
        case ATH9K_TX_QUEUE_PSPOLL:
                REG_WRITE(ah, AR_QMISC(q),
                    REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_CBR_INCR_DIS1);
                break;
        case ATH9K_TX_QUEUE_UAPSD:
                REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
                    AR_D_MISC_POST_FR_BKOFF_DIS);
                break;
        default:
                break;
        }

        if (qi->tqi_intFlags & ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS) {
                REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
                    SM(AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL,
                    AR_D_MISC_ARB_LOCKOUT_CNTRL) |
                    AR_D_MISC_POST_FR_BKOFF_DIS);
        }

        if (qi->tqi_qflags & TXQ_FLAG_TXOKINT_ENABLE)
                ahp->ah_txOkInterruptMask |= 1 << q;
        else
                ahp->ah_txOkInterruptMask &= ~(1 << q);
        if (qi->tqi_qflags & TXQ_FLAG_TXERRINT_ENABLE)
                ahp->ah_txErrInterruptMask |= 1 << q;
        else
                ahp->ah_txErrInterruptMask &= ~(1 << q);
        if (qi->tqi_qflags & TXQ_FLAG_TXDESCINT_ENABLE)
                ahp->ah_txDescInterruptMask |= 1 << q;
        else
                ahp->ah_txDescInterruptMask &= ~(1 << q);
        if (qi->tqi_qflags & TXQ_FLAG_TXEOLINT_ENABLE)
                ahp->ah_txEolInterruptMask |= 1 << q;
        else
                ahp->ah_txEolInterruptMask &= ~(1 << q);
        if (qi->tqi_qflags & TXQ_FLAG_TXURNINT_ENABLE)
                ahp->ah_txUrnInterruptMask |= 1 << q;
        else
                ahp->ah_txUrnInterruptMask &= ~(1 << q);
        ath9k_hw_set_txq_interrupts(ah, qi);

        return (B_TRUE);
}

/* ARGSUSED */
int
ath9k_hw_rxprocdesc(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t pa,
    struct ath_desc *nds,
    uint64_t tsf)
{
        struct ar5416_desc ads;
        struct ar5416_desc *adsp = AR5416DESC(ds);
        uint32_t phyerr;

        if ((adsp->ds_rxstatus8 & AR_RxDone) == 0)
                return (EINPROGRESS);

        ads.u.rx = adsp->u.rx;

        ds->ds_rxstat.rs_status = 0;
        ds->ds_rxstat.rs_flags = 0;

        ds->ds_rxstat.rs_datalen = ads.ds_rxstatus1 & AR_DataLen;
        ds->ds_rxstat.rs_tstamp = ads.AR_RcvTimestamp;

        ds->ds_rxstat.rs_rssi = MS(ads.ds_rxstatus4, AR_RxRSSICombined);
        ds->ds_rxstat.rs_rssi_ctl0 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt00);
        ds->ds_rxstat.rs_rssi_ctl1 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt01);
        ds->ds_rxstat.rs_rssi_ctl2 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt02);
        ds->ds_rxstat.rs_rssi_ext0 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt10);
        ds->ds_rxstat.rs_rssi_ext1 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt11);
        ds->ds_rxstat.rs_rssi_ext2 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt12);
        if (ads.ds_rxstatus8 & AR_RxKeyIdxValid)
                ds->ds_rxstat.rs_keyix = MS(ads.ds_rxstatus8, AR_KeyIdx);
        else
                ds->ds_rxstat.rs_keyix = ATH9K_RXKEYIX_INVALID;

        ds->ds_rxstat.rs_rate = RXSTATUS_RATE(ah, (&ads));
        ds->ds_rxstat.rs_more = (ads.ds_rxstatus1 & AR_RxMore) ? 1 : 0;

        ds->ds_rxstat.rs_isaggr = (ads.ds_rxstatus8 & AR_RxAggr) ? 1 : 0;
        ds->ds_rxstat.rs_moreaggr =
            (ads.ds_rxstatus8 & AR_RxMoreAggr) ? 1 : 0;
        ds->ds_rxstat.rs_antenna = MS(ads.ds_rxstatus3, AR_RxAntenna);
        ds->ds_rxstat.rs_flags =
            (ads.ds_rxstatus3 & AR_GI) ? ATH9K_RX_GI : 0;
        ds->ds_rxstat.rs_flags |=
            (ads.ds_rxstatus3 & AR_2040) ? ATH9K_RX_2040 : 0;

        if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
                ds->ds_rxstat.rs_flags |= ATH9K_RX_DELIM_CRC_PRE;
        if (ads.ds_rxstatus8 & AR_PostDelimCRCErr)
                ds->ds_rxstat.rs_flags |= ATH9K_RX_DELIM_CRC_POST;
        if (ads.ds_rxstatus8 & AR_DecryptBusyErr)
                ds->ds_rxstat.rs_flags |= ATH9K_RX_DECRYPT_BUSY;

        if ((ads.ds_rxstatus8 & AR_RxFrameOK) == 0) {
                if (ads.ds_rxstatus8 & AR_CRCErr)
                        ds->ds_rxstat.rs_status |= ATH9K_RXERR_CRC;
                else if (ads.ds_rxstatus8 & AR_PHYErr) {
                        ds->ds_rxstat.rs_status |= ATH9K_RXERR_PHY;
                        phyerr = MS(ads.ds_rxstatus8, AR_PHYErrCode);
                        ds->ds_rxstat.rs_phyerr = (uint8_t)phyerr; /* LINT */
                } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
                        ds->ds_rxstat.rs_status |= ATH9K_RXERR_DECRYPT;
                else if (ads.ds_rxstatus8 & AR_MichaelErr)
                        ds->ds_rxstat.rs_status |= ATH9K_RXERR_MIC;
        }

        return (0);
}

boolean_t
ath9k_hw_setuprxdesc(struct ath_hal *ah, struct ath_desc *ds,
    uint32_t size, uint32_t flags)
{
        struct ar5416_desc *ads = AR5416DESC(ds);
        struct ath9k_hw_capabilities *pCap = &ah->ah_caps;

        ads->ds_ctl1 = size & AR_BufLen;
        if (flags & ATH9K_RXDESC_INTREQ)
                ads->ds_ctl1 |= AR_RxIntrReq;

        ads->ds_rxstatus8 &= ~AR_RxDone;
        if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
                (void) memset(&(ads->u), 0, sizeof (ads->u));

        return (B_TRUE);
}

boolean_t
ath9k_hw_setrxabort(struct ath_hal *ah, boolean_t set)
{
        uint32_t reg;

        if (set) {
                REG_SET_BIT(ah, AR_DIAG_SW,
                    (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));

                if (!ath9k_hw_wait(ah, AR_OBS_BUS_1,
                    AR_OBS_BUS_1_RX_STATE, 0)) {
                        REG_CLR_BIT(ah, AR_DIAG_SW,
                            (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));

                        reg = REG_READ(ah, AR_OBS_BUS_1);

                        ARN_DBG((ARN_DBG_FATAL,
                            "%s: rx failed to go idle in 10 ms RXSM=0x%x\n",
                            __func__, reg));

                        return (B_FALSE);
                }
        } else {
                REG_CLR_BIT(ah, AR_DIAG_SW,
                    (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
        }

        return (B_TRUE);
}

void
ath9k_hw_putrxbuf(struct ath_hal *ah, uint32_t rxdp)
{
        REG_WRITE(ah, AR_RXDP, rxdp);
}

void
ath9k_hw_rxena(struct ath_hal *ah)
{
        REG_WRITE(ah, AR_CR, AR_CR_RXE);
}

void
ath9k_hw_startpcureceive(struct ath_hal *ah)
{
        ath9k_enable_mib_counters(ah);

        ath9k_ani_reset(ah);

        REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
}

void
ath9k_hw_stoppcurecv(struct ath_hal *ah)
{
        REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);

        ath9k_hw_disable_mib_counters(ah);
}

boolean_t
ath9k_hw_stopdmarecv(struct ath_hal *ah)
{
        REG_WRITE(ah, AR_CR, AR_CR_RXD);

        if (!ath9k_hw_wait(ah, AR_CR, AR_CR_RXE, 0)) {
                ARN_DBG((ARN_DBG_QUEUE, "arn: ath9k_hw_stopdmarecv(): "
                    "dma failed to stop in 10ms\n"
                    "AR_CR=0x%08x\nAR_DIAG_SW=0x%08x\n",
                    REG_READ(ah, AR_CR), REG_READ(ah, AR_DIAG_SW)));
                return (B_FALSE);
        } else {
                return (B_TRUE);
        }
}