ar5416_attach.c

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/*-
 * SPDX-License-Identifier: ISC
 *
 * Copyright (c) 2002-2008 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_internal.h"
#include "ah_devid.h"
 
#include "ah_eeprom_v14.h"
 
#include "ar5416/ar5416.h"
#include "ar5416/ar5416reg.h"
#include "ar5416/ar5416phy.h"
 
#include "ar5416/ar5416.ini"
 
static void ar5416ConfigPCIE(struct ath_hal *ah, HAL_BOOL restore,
                HAL_BOOL power_off);
static void ar5416DisablePCIE(struct ath_hal *ah);
static void ar5416WriteIni(struct ath_hal *ah,
            const struct ieee80211_channel *chan);
static void ar5416SpurMitigate(struct ath_hal *ah,
            const struct ieee80211_channel *chan);
 
static void
ar5416AniSetup(struct ath_hal *ah)
{
        static const struct ar5212AniParams aniparams = {
                .maxNoiseImmunityLevel  = 4,    /* levels 0..4 */
                .totalSizeDesired       = { -55, -55, -55, -55, -62 },
                .coarseHigh             = { -14, -14, -14, -14, -12 },
                .coarseLow              = { -64, -64, -64, -64, -70 },
                .firpwr                 = { -78, -78, -78, -78, -80 },
                .maxSpurImmunityLevel   = 7,
                .cycPwrThr1             = { 2, 4, 6, 8, 10, 12, 14, 16 },
                .maxFirstepLevel        = 2,    /* levels 0..2 */
                .firstep                = { 0, 4, 8 },
                .ofdmTrigHigh           = 500,
                .ofdmTrigLow            = 200,
                .cckTrigHigh            = 200,
                .cckTrigLow             = 100,
                .rssiThrHigh            = 40,
                .rssiThrLow             = 7,
                .period                 = 100,
        };
        /* NB: disable ANI noise immmunity for reliable RIFS rx */
        AH5416(ah)->ah_ani_function &= ~(1 << HAL_ANI_NOISE_IMMUNITY_LEVEL);
        ar5416AniAttach(ah, &aniparams, &aniparams, AH_TRUE);
}
 
/*
 * AR5416 doesn't do OLC or temperature compensation.
 */
static void
ar5416olcInit(struct ath_hal *ah)
{
}
 
static void
ar5416olcTempCompensation(struct ath_hal *ah)
{
}
 
/*
 * Attach for an AR5416 part.
 */
void
ar5416InitState(struct ath_hal_5416 *ahp5416, uint16_t devid, HAL_SOFTC sc,
        HAL_BUS_TAG st, HAL_BUS_HANDLE sh, HAL_STATUS *status)
{
        struct ath_hal_5212 *ahp;
        struct ath_hal *ah;
 
        ahp = &ahp5416->ah_5212;
        ar5212InitState(ahp, devid, sc, st, sh, status);
        ah = &ahp->ah_priv.h;
 
        /* override 5212 methods for our needs */
        ah->ah_magic                    = AR5416_MAGIC;
        ah->ah_getRateTable             = ar5416GetRateTable;
        ah->ah_detach                   = ar5416Detach;
 
        /* Reset functions */
        ah->ah_reset                    = ar5416Reset;
        ah->ah_phyDisable               = ar5416PhyDisable;
        ah->ah_disable                  = ar5416Disable;
        ah->ah_configPCIE               = ar5416ConfigPCIE;
        ah->ah_disablePCIE              = ar5416DisablePCIE;
        ah->ah_perCalibration           = ar5416PerCalibration;
        ah->ah_perCalibrationN          = ar5416PerCalibrationN;
        ah->ah_resetCalValid            = ar5416ResetCalValid;
        ah->ah_setTxPowerLimit          = ar5416SetTxPowerLimit;
        ah->ah_setTxPower               = ar5416SetTransmitPower;
        ah->ah_setBoardValues           = ar5416SetBoardValues;
 
        /* Transmit functions */
        ah->ah_stopTxDma                = ar5416StopTxDma;
        ah->ah_setupTxDesc              = ar5416SetupTxDesc;
        ah->ah_setupXTxDesc             = ar5416SetupXTxDesc;
        ah->ah_fillTxDesc               = ar5416FillTxDesc;
        ah->ah_procTxDesc               = ar5416ProcTxDesc;
        ah->ah_getTxCompletionRates     = ar5416GetTxCompletionRates;
        ah->ah_setupTxQueue             = ar5416SetupTxQueue;
        ah->ah_resetTxQueue             = ar5416ResetTxQueue;
 
        /* Receive Functions */
        ah->ah_getRxFilter              = ar5416GetRxFilter;
        ah->ah_setRxFilter              = ar5416SetRxFilter;
        ah->ah_stopDmaReceive           = ar5416StopDmaReceive;
        ah->ah_startPcuReceive          = ar5416StartPcuReceive;
        ah->ah_stopPcuReceive           = ar5416StopPcuReceive;
        ah->ah_setupRxDesc              = ar5416SetupRxDesc;
        ah->ah_procRxDesc               = ar5416ProcRxDesc;
        ah->ah_rxMonitor                = ar5416RxMonitor;
        ah->ah_aniPoll                  = ar5416AniPoll;
        ah->ah_procMibEvent             = ar5416ProcessMibIntr;
 
        /* Misc Functions */
        ah->ah_getCapability            = ar5416GetCapability;
        ah->ah_setCapability            = ar5416SetCapability;
        ah->ah_getDiagState             = ar5416GetDiagState;
        ah->ah_setLedState              = ar5416SetLedState;
        ah->ah_gpioCfgOutput            = ar5416GpioCfgOutput;
        ah->ah_gpioCfgInput             = ar5416GpioCfgInput;
        ah->ah_gpioGet                  = ar5416GpioGet;
        ah->ah_gpioSet                  = ar5416GpioSet;
        ah->ah_gpioSetIntr              = ar5416GpioSetIntr;
        ah->ah_getTsf64                 = ar5416GetTsf64;
        ah->ah_setTsf64                 = ar5416SetTsf64;
        ah->ah_resetTsf                 = ar5416ResetTsf;
        ah->ah_getRfGain                = ar5416GetRfgain;
        ah->ah_setAntennaSwitch         = ar5416SetAntennaSwitch;
        ah->ah_setDecompMask            = ar5416SetDecompMask;
        ah->ah_setCoverageClass         = ar5416SetCoverageClass;
        ah->ah_setQuiet                 = ar5416SetQuiet;
        ah->ah_getMibCycleCounts        = ar5416GetMibCycleCounts;
        ah->ah_setChainMasks            = ar5416SetChainMasks;
 
        ah->ah_resetKeyCacheEntry       = ar5416ResetKeyCacheEntry;
        ah->ah_setKeyCacheEntry         = ar5416SetKeyCacheEntry;
 
        /* DFS Functions */
        ah->ah_enableDfs                = ar5416EnableDfs;
        ah->ah_getDfsThresh             = ar5416GetDfsThresh;
        ah->ah_getDfsDefaultThresh      = ar5416GetDfsDefaultThresh;
        ah->ah_procRadarEvent           = ar5416ProcessRadarEvent;
        ah->ah_isFastClockEnabled       = ar5416IsFastClockEnabled;
 
        /* Spectral Scan Functions */
        ah->ah_spectralConfigure        = ar5416ConfigureSpectralScan;
        ah->ah_spectralGetConfig        = ar5416GetSpectralParams;
        ah->ah_spectralStart            = ar5416StartSpectralScan;
        ah->ah_spectralStop             = ar5416StopSpectralScan;
        ah->ah_spectralIsEnabled        = ar5416IsSpectralEnabled;
        ah->ah_spectralIsActive         = ar5416IsSpectralActive;
 
        /* Power Management Functions */
        ah->ah_setPowerMode             = ar5416SetPowerMode;
 
        /* Beacon Management Functions */
        ah->ah_setBeaconTimers          = ar5416SetBeaconTimers;
        ah->ah_beaconInit               = ar5416BeaconInit;
        ah->ah_setStationBeaconTimers   = ar5416SetStaBeaconTimers;
        ah->ah_resetStationBeaconTimers = ar5416ResetStaBeaconTimers;
        ah->ah_getNextTBTT              = ar5416GetNextTBTT;
 
        /* 802.11n Functions */
        ah->ah_chainTxDesc              = ar5416ChainTxDesc;
        ah->ah_setupFirstTxDesc         = ar5416SetupFirstTxDesc;
        ah->ah_setupLastTxDesc          = ar5416SetupLastTxDesc;
        ah->ah_set11nRateScenario       = ar5416Set11nRateScenario;
        ah->ah_set11nAggrFirst          = ar5416Set11nAggrFirst;
        ah->ah_set11nAggrMiddle         = ar5416Set11nAggrMiddle;
        ah->ah_set11nAggrLast           = ar5416Set11nAggrLast;
        ah->ah_clr11nAggr               = ar5416Clr11nAggr;
        ah->ah_set11nBurstDuration      = ar5416Set11nBurstDuration;
        ah->ah_get11nExtBusy            = ar5416Get11nExtBusy;
        ah->ah_set11nMac2040            = ar5416Set11nMac2040;
        ah->ah_get11nRxClear            = ar5416Get11nRxClear;
        ah->ah_set11nRxClear            = ar5416Set11nRxClear;
        ah->ah_set11nVirtMoreFrag       = ar5416Set11nVirtualMoreFrag;
 
        /* Interrupt functions */
        ah->ah_isInterruptPending       = ar5416IsInterruptPending;
        ah->ah_getPendingInterrupts     = ar5416GetPendingInterrupts;
        ah->ah_setInterrupts            = ar5416SetInterrupts;
 
        /* Bluetooth Coexistence functions */
        ah->ah_btCoexSetInfo            = ar5416SetBTCoexInfo;
        ah->ah_btCoexSetConfig          = ar5416BTCoexConfig;
        ah->ah_btCoexSetQcuThresh       = ar5416BTCoexSetQcuThresh;
        ah->ah_btCoexSetWeights         = ar5416BTCoexSetWeights;
        ah->ah_btCoexSetBmissThresh     = ar5416BTCoexSetupBmissThresh;
        ah->ah_btCoexSetParameter       = ar5416BTCoexSetParameter;
        ah->ah_btCoexDisable            = ar5416BTCoexDisable;
        ah->ah_btCoexEnable             = ar5416BTCoexEnable;
        AH5416(ah)->ah_btCoexSetDiversity = ar5416BTCoexAntennaDiversity;
 
        ahp->ah_priv.ah_getWirelessModes= ar5416GetWirelessModes;
        ahp->ah_priv.ah_eepromRead      = ar5416EepromRead;
#ifdef AH_SUPPORT_WRITE_EEPROM
        ahp->ah_priv.ah_eepromWrite     = ar5416EepromWrite;
#endif
        ahp->ah_priv.ah_getChipPowerLimits = ar5416GetChipPowerLimits;
 
        /* Internal ops */
        AH5416(ah)->ah_writeIni         = ar5416WriteIni;
        AH5416(ah)->ah_spurMitigate     = ar5416SpurMitigate;
 
        /* Internal baseband ops */
        AH5416(ah)->ah_initPLL          = ar5416InitPLL;
 
        /* Internal calibration ops */
        AH5416(ah)->ah_cal_initcal      = ar5416InitCalHardware;
 
        /* Internal TX power control related operations */
        AH5416(ah)->ah_olcInit = ar5416olcInit;
        AH5416(ah)->ah_olcTempCompensation      = ar5416olcTempCompensation;
        AH5416(ah)->ah_setPowerCalTable = ar5416SetPowerCalTable;
 
        /*
         * Start by setting all Owl devices to 2x2
         */
        AH5416(ah)->ah_rx_chainmask = AR5416_DEFAULT_RXCHAINMASK;
        AH5416(ah)->ah_tx_chainmask = AR5416_DEFAULT_TXCHAINMASK;
 
        /* Enable all ANI functions to begin with */
        AH5416(ah)->ah_ani_function = 0xffffffff;
 
        /* Set overridable ANI methods */
        AH5212(ah)->ah_aniControl = ar5416AniControl;
 
        /*
         * Default FIFO Trigger levels
         *
         * These define how filled the TX FIFO needs to be before
         * the baseband begins to be given some data.
         *
         * To be paranoid, we ensure that the TX trigger level always
         * has at least enough space for two TX DMA to occur.
         * The TX DMA size is currently hard-coded to AR_TXCFG_DMASZ_128B.
         * That means we need to leave at least 256 bytes available in
         * the TX DMA FIFO.
         */
#define AR_FTRIG_512B   0x00000080 // 5 bits total
        /*
         * AR9285/AR9271 have half the size TX FIFO compared to
         * other devices
         */
        if (AR_SREV_KITE(ah) || AR_SREV_9271(ah)) {
                AH5212(ah)->ah_txTrigLev = (AR_FTRIG_256B >> AR_FTRIG_S);
                AH5212(ah)->ah_maxTxTrigLev = ((2048 / 64) - 1);
        } else {
                AH5212(ah)->ah_txTrigLev = (AR_FTRIG_512B >> AR_FTRIG_S);
                AH5212(ah)->ah_maxTxTrigLev = ((4096 / 64) - 1);
        }
#undef  AR_FTRIG_512B
 
        /* And now leave some headspace - 256 bytes */
        AH5212(ah)->ah_maxTxTrigLev -= 4;
}
 
uint32_t
ar5416GetRadioRev(struct ath_hal *ah)
{
        uint32_t val;
        int i;
 
        /* Read Radio Chip Rev Extract */
        OS_REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
        for (i = 0; i < 8; i++)
                OS_REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
        val = (OS_REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
        val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
        return ath_hal_reverseBits(val, 8);
}
 
/*
 * Attach for an AR5416 part.
 */
static struct ath_hal *
ar5416Attach(uint16_t devid, HAL_SOFTC sc,
        HAL_BUS_TAG st, HAL_BUS_HANDLE sh, uint16_t *eepromdata,
        HAL_OPS_CONFIG *ah_config, HAL_STATUS *status)
{
        struct ath_hal_5416 *ahp5416;
        struct ath_hal_5212 *ahp;
        struct ath_hal *ah;
        uint32_t val;
        HAL_STATUS ecode;
        HAL_BOOL rfStatus;
 
        HALDEBUG(AH_NULL, HAL_DEBUG_ATTACH, "%s: sc %p st %p sh %p\n",
            __func__, sc, (void*) st, (void*) sh);
 
        /* NB: memory is returned zero'd */
        ahp5416 = ath_hal_malloc(sizeof (struct ath_hal_5416) +
                /* extra space for Owl 2.1/2.2 WAR */
                sizeof(ar5416Addac)
        );
        if (ahp5416 == AH_NULL) {
                HALDEBUG(AH_NULL, HAL_DEBUG_ANY,
                    "%s: cannot allocate memory for state block\n", __func__);
                *status = HAL_ENOMEM;
                return AH_NULL;
        }
        ar5416InitState(ahp5416, devid, sc, st, sh, status);
        ahp = &ahp5416->ah_5212;
        ah = &ahp->ah_priv.h;
 
        if (!ar5416SetResetReg(ah, HAL_RESET_POWER_ON)) {
                /* reset chip */
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: couldn't reset chip\n", __func__);
                ecode = HAL_EIO;
                goto bad;
        }
 
        if (!ar5416SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) {
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: couldn't wakeup chip\n", __func__);
                ecode = HAL_EIO;
                goto bad;
        }
        /* Read Revisions from Chips before taking out of reset */
        val = OS_REG_READ(ah, AR_SREV) & AR_SREV_ID;
        AH_PRIVATE(ah)->ah_macVersion = val >> AR_SREV_ID_S;
        AH_PRIVATE(ah)->ah_macRev = val & AR_SREV_REVISION;
        AH_PRIVATE(ah)->ah_ispcie = (devid == AR5416_DEVID_PCIE);
 
        /* setup common ini data; rf backends handle remainder */
        HAL_INI_INIT(&ahp->ah_ini_modes, ar5416Modes, 6);
        HAL_INI_INIT(&ahp->ah_ini_common, ar5416Common, 2);
 
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bb_rfgain, ar5416BB_RfGain, 3);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bank0, ar5416Bank0, 2);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bank1, ar5416Bank1, 2);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bank2, ar5416Bank2, 2);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bank3, ar5416Bank3, 3);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bank6, ar5416Bank6, 3);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_bank7, ar5416Bank7, 2);
        HAL_INI_INIT(&AH5416(ah)->ah_ini_addac, ar5416Addac, 2);
 
        if (! IS_5416V2_2(ah)) {                /* Owl 2.1/2.0 */
                ath_hal_printf(ah, "[ath] Enabling CLKDRV workaround for AR5416 < v2.2\n");
                struct ini {
                        uint32_t        *data;          /* NB: !const */
                        int             rows, cols;
                };
                /* override CLKDRV value */
                OS_MEMCPY(&AH5416(ah)[1], ar5416Addac, sizeof(ar5416Addac));
                AH5416(ah)->ah_ini_addac.data = (uint32_t *) &AH5416(ah)[1];
                HAL_INI_VAL((struct ini *)&AH5416(ah)->ah_ini_addac, 31, 1) = 0;
        }
 
        HAL_INI_INIT(&AH5416(ah)->ah_ini_pcieserdes, ar5416PciePhy, 2);
        ar5416AttachPCIE(ah);
 
        ecode = ath_hal_v14EepromAttach(ah);
        if (ecode != HAL_OK)
                goto bad;
 
        if (!ar5416ChipReset(ah, AH_NULL, HAL_RESET_NORMAL)) {  /* reset chip */
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n",
                    __func__);
                ecode = HAL_EIO;
                goto bad;
        }
 
        AH_PRIVATE(ah)->ah_phyRev = OS_REG_READ(ah, AR_PHY_CHIP_ID);
 
        if (!ar5212ChipTest(ah)) {
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: hardware self-test failed\n",
                    __func__);
                ecode = HAL_ESELFTEST;
                goto bad;
        }
 
        /*
         * Set correct Baseband to analog shift
         * setting to access analog chips.
         */
        OS_REG_WRITE(ah, AR_PHY(0), 0x00000007);
 
        /* Read Radio Chip Rev Extract */
        AH_PRIVATE(ah)->ah_analog5GhzRev = ar5416GetRadioRev(ah);
        switch (AH_PRIVATE(ah)->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR) {
        case AR_RAD5122_SREV_MAJOR:     /* Fowl: 5G/2x2 */
        case AR_RAD2122_SREV_MAJOR:     /* Fowl: 2+5G/2x2 */
        case AR_RAD2133_SREV_MAJOR:     /* Fowl: 2G/3x3 */
        case AR_RAD5133_SREV_MAJOR:     /* Fowl: 2+5G/3x3 */
                break;
        default:
                if (AH_PRIVATE(ah)->ah_analog5GhzRev == 0) {
                        /*
                         * When RF_Silen is used the analog chip is reset.
                         * So when the system boots with radio switch off
                         * the RF chip rev reads back as zero and we need
                         * to use the mac+phy revs to set the radio rev.
                         */
                        AH_PRIVATE(ah)->ah_analog5GhzRev =
                                AR_RAD5133_SREV_MAJOR;
                        break;
                }
                /* NB: silently accept anything in release code per Atheros */
#ifdef AH_DEBUG
                HALDEBUG(ah, HAL_DEBUG_ANY,
                    "%s: 5G Radio Chip Rev 0x%02X is not supported by "
                    "this driver\n", __func__,
                    AH_PRIVATE(ah)->ah_analog5GhzRev);
                ecode = HAL_ENOTSUPP;
                goto bad;
#endif
        }
 
        /*
         * Got everything we need now to setup the capabilities.
         */
        if (!ar5416FillCapabilityInfo(ah)) {
                ecode = HAL_EEREAD;
                goto bad;
        }
 
        ecode = ath_hal_eepromGet(ah, AR_EEP_MACADDR, ahp->ah_macaddr);
        if (ecode != HAL_OK) {
                HALDEBUG(ah, HAL_DEBUG_ANY,
                    "%s: error getting mac address from EEPROM\n", __func__);
                goto bad;
        }
        /* XXX How about the serial number ? */
        /* Read Reg Domain */
        AH_PRIVATE(ah)->ah_currentRD =
            ath_hal_eepromGet(ah, AR_EEP_REGDMN_0, AH_NULL);
        AH_PRIVATE(ah)->ah_currentRDext =
            ath_hal_eepromGet(ah, AR_EEP_REGDMN_1, AH_NULL);
 
        /*
         * ah_miscMode is populated by ar5416FillCapabilityInfo()
         * starting from griffin. Set here to make sure that
         * AR_MISC_MODE_MIC_NEW_LOC_ENABLE is set before a GTK is
         * placed into hardware.
         */
        if (ahp->ah_miscMode != 0)
                OS_REG_WRITE(ah, AR_MISC_MODE, OS_REG_READ(ah, AR_MISC_MODE) | ahp->ah_miscMode);
 
        rfStatus = ar2133RfAttach(ah, &ecode);
        if (!rfStatus) {
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: RF setup failed, status %u\n",
                    __func__, ecode);
                goto bad;
        }
 
        ar5416AniSetup(ah);                     /* Anti Noise Immunity */
 
        AH5416(ah)->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_5416_2GHZ;
        AH5416(ah)->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_5416_2GHZ;
        AH5416(ah)->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_5416_2GHZ;
        AH5416(ah)->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_5416_5GHZ;
        AH5416(ah)->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_5416_5GHZ;
        AH5416(ah)->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_5416_5GHZ;
 
        ar5416InitNfHistBuff(AH5416(ah)->ah_cal.nfCalHist);
 
        HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s: return\n", __func__);
 
        return ah;
bad:
        if (ahp)
                ar5416Detach((struct ath_hal *) ahp);
        if (status)
                *status = ecode;
        return AH_NULL;
}
 
void
ar5416Detach(struct ath_hal *ah)
{
        HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s:\n", __func__);
 
        HALASSERT(ah != AH_NULL);
        HALASSERT(ah->ah_magic == AR5416_MAGIC);
 
        /* Make sure that chip is awake before writing to it */
        if (! ar5416SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE))
                HALDEBUG(ah, HAL_DEBUG_UNMASKABLE,
                    "%s: failed to wake up chip\n",
                    __func__);
 
        ar5416AniDetach(ah);
        ar5212RfDetach(ah);
        ah->ah_disable(ah);
        ar5416SetPowerMode(ah, HAL_PM_FULL_SLEEP, AH_TRUE);
        ath_hal_eepromDetach(ah);
        ath_hal_free(ah);
}
 
void
ar5416AttachPCIE(struct ath_hal *ah)
{
        if (AH_PRIVATE(ah)->ah_ispcie)
                ath_hal_configPCIE(ah, AH_FALSE, AH_FALSE);
        else
                ath_hal_disablePCIE(ah);
}
 
static void
ar5416ConfigPCIE(struct ath_hal *ah, HAL_BOOL restore, HAL_BOOL power_off)
{
 
        /* This is only applicable for AR5418 (AR5416 PCIe) */
        if (! AH_PRIVATE(ah)->ah_ispcie)
                return;
 
        if (! restore) {
                ath_hal_ini_write(ah, &AH5416(ah)->ah_ini_pcieserdes, 1, 0);
                OS_DELAY(1000);
        }
 
        if (power_off) {                /* Power-off */
                /* clear bit 19 to disable L1 */
                OS_REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
        } else {                        /* Power-on */
                /* Set default WAR values for Owl */
                OS_REG_WRITE(ah, AR_WA, AR_WA_DEFAULT);
 
                /* set bit 19 to allow forcing of pcie core into L1 state */
                OS_REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
        }
}
 
/*
 * Disable PCIe PHY if PCIe isn't used.
 */
static void
ar5416DisablePCIE(struct ath_hal *ah)
{
 
        /* PCIe? Don't */
        if (AH_PRIVATE(ah)->ah_ispcie)
                return;
 
        /* .. Only applicable for AR5416v2 or later */
        if (! (AR_SREV_OWL(ah) && AR_SREV_OWL_20_OR_LATER(ah)))
                return;
 
        OS_REG_WRITE_BUFFER_ENABLE(ah);
 
        /*
         * Disable the PCIe PHY.
         */
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
        OS_REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
 
        /* Load the new settings */
        OS_REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
 
        OS_REG_WRITE_BUFFER_FLUSH(ah);
        OS_REG_WRITE_BUFFER_DISABLE(ah);
}
 
static void
ar5416WriteIni(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
        u_int modesIndex, freqIndex;
        int regWrites = 0;
 
        /* Setup the indices for the next set of register array writes */
        /* XXX Ignore 11n dynamic mode on the AR5416 for the moment */
        if (IEEE80211_IS_CHAN_2GHZ(chan)) {
                freqIndex = 2;
                if (IEEE80211_IS_CHAN_HT40(chan))
                        modesIndex = 3;
                else if (IEEE80211_IS_CHAN_108G(chan))
                        modesIndex = 5;
                else
                        modesIndex = 4;
        } else {
                freqIndex = 1;
                if (IEEE80211_IS_CHAN_HT40(chan) ||
                    IEEE80211_IS_CHAN_TURBO(chan))
                        modesIndex = 2;
                else
                        modesIndex = 1;
        }
 
        /* Set correct Baseband to analog shift setting to access analog chips. */
        OS_REG_WRITE(ah, AR_PHY(0), 0x00000007);
 
        /*
         * Write addac shifts
         */
        OS_REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
 
        /* NB: only required for Sowl */
        if (AR_SREV_SOWL(ah))
                ar5416EepromSetAddac(ah, chan);
 
        regWrites = ath_hal_ini_write(ah, &AH5416(ah)->ah_ini_addac, 1,
            regWrites);
        OS_REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
 
        regWrites = ath_hal_ini_write(ah, &AH5212(ah)->ah_ini_modes,
            modesIndex, regWrites);
        regWrites = ath_hal_ini_write(ah, &AH5212(ah)->ah_ini_common,
            1, regWrites);
 
        /* XXX updated regWrites? */
        AH5212(ah)->ah_rfHal->writeRegs(ah, modesIndex, freqIndex, regWrites);
}
 
/*
 * Convert to baseband spur frequency given input channel frequency 
 * and compute register settings below.
 */
 
static void
ar5416SpurMitigate(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
    uint16_t freq = ath_hal_gethwchannel(ah, chan);
    static const int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
                AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60 };
    static const int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
                AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60 };
    static const int inc[4] = { 0, 100, 0, 0 };
 
    int bb_spur = AR_NO_SPUR;
    int bin, cur_bin;
    int spur_freq_sd;
    int spur_delta_phase;
    int denominator;
    int upper, lower, cur_vit_mask;
    int tmp, new;
    int i;
 
    int8_t mask_m[123];
    int8_t mask_p[123];
    int8_t mask_amt;
    int tmp_mask;
    int cur_bb_spur;
    HAL_BOOL is2GHz = IEEE80211_IS_CHAN_2GHZ(chan);
 
    OS_MEMZERO(mask_m, sizeof(mask_m));
    OS_MEMZERO(mask_p, sizeof(mask_p));
 
    /*
     * Need to verify range +/- 9.5 for static ht20, otherwise spur
     * is out-of-band and can be ignored.
     */
    /* XXX ath9k changes */
    for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) {
        cur_bb_spur = ath_hal_getSpurChan(ah, i, is2GHz);
        if (AR_NO_SPUR == cur_bb_spur)
            break;
        cur_bb_spur = cur_bb_spur - (freq * 10);
        if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
            bb_spur = cur_bb_spur;
            break;
        }
    }
    if (AR_NO_SPUR == bb_spur)
        return;
 
    bin = bb_spur * 32;
 
    tmp = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0));
    new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
        AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
        AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
        AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
 
    OS_REG_WRITE_BUFFER_ENABLE(ah);
 
    OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0), new);
 
    new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
        AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
        AR_PHY_SPUR_REG_MASK_RATE_SELECT |
        AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
        SM(AR5416_SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
    OS_REG_WRITE(ah, AR_PHY_SPUR_REG, new);
    /*
     * Should offset bb_spur by +/- 10 MHz for dynamic 2040 MHz
     * config, no offset for HT20.
     * spur_delta_phase = bb_spur/40 * 2**21 for static ht20,
     * /80 for dyn2040.
     */
    spur_delta_phase = ((bb_spur * 524288) / 100) &
        AR_PHY_TIMING11_SPUR_DELTA_PHASE;
    /*
     * in 11A mode the denominator of spur_freq_sd should be 40 and
     * it should be 44 in 11G
     */
    denominator = IEEE80211_IS_CHAN_2GHZ(chan) ? 440 : 400;
    spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
 
    new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
        SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
        SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
    OS_REG_WRITE(ah, AR_PHY_TIMING11, new);
 
    /*
     * ============================================
     * pilot mask 1 [31:0] = +6..-26, no 0 bin
     * pilot mask 2 [19:0] = +26..+7
     *
     * channel mask 1 [31:0] = +6..-26, no 0 bin
     * channel mask 2 [19:0] = +26..+7
     */
    //cur_bin = -26;
    cur_bin = -6000;
    upper = bin + 100;
    lower = bin - 100;
 
    for (i = 0; i < 4; i++) {
        int pilot_mask = 0;
        int chan_mask  = 0;
        int bp         = 0;
        for (bp = 0; bp < 30; bp++) {
            if ((cur_bin > lower) && (cur_bin < upper)) {
                pilot_mask = pilot_mask | 0x1 << bp;
                chan_mask  = chan_mask | 0x1 << bp;
            }
            cur_bin += 100;
        }
        cur_bin += inc[i];
        OS_REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
        OS_REG_WRITE(ah, chan_mask_reg[i], chan_mask);
    }
 
    /* =================================================
     * viterbi mask 1 based on channel magnitude
     * four levels 0-3
     *  - mask (-27 to 27) (reg 64,0x9900 to 67,0x990c)
     *      [1 2 2 1] for -9.6 or [1 2 1] for +16
     *  - enable_mask_ppm, all bins move with freq
     *
     *  - mask_select,    8 bits for rates (reg 67,0x990c)
     *  - mask_rate_cntl, 8 bits for rates (reg 67,0x990c)
     *      choose which mask to use mask or mask2
     */
 
    /*
     * viterbi mask 2  2nd set for per data rate puncturing
     * four levels 0-3
     *  - mask_select, 8 bits for rates (reg 67)
     *  - mask (-27 to 27) (reg 98,0x9988 to 101,0x9994)
     *      [1 2 2 1] for -9.6 or [1 2 1] for +16
     */
    cur_vit_mask = 6100;
    upper        = bin + 120;
    lower        = bin - 120;
 
    for (i = 0; i < 123; i++) {
        if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
            if ((abs(cur_vit_mask - bin)) < 75) {
                mask_amt = 1;
            } else {
                mask_amt = 0;
            }
            if (cur_vit_mask < 0) {
                mask_m[abs(cur_vit_mask / 100)] = mask_amt;
            } else {
                mask_p[cur_vit_mask / 100] = mask_amt;
            }
        }
        cur_vit_mask -= 100;
    }
 
    tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
          | (mask_m[48] << 26) | (mask_m[49] << 24)
          | (mask_m[50] << 22) | (mask_m[51] << 20)
          | (mask_m[52] << 18) | (mask_m[53] << 16)
          | (mask_m[54] << 14) | (mask_m[55] << 12)
          | (mask_m[56] << 10) | (mask_m[57] <<  8)
          | (mask_m[58] <<  6) | (mask_m[59] <<  4)
          | (mask_m[60] <<  2) | (mask_m[61] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
 
    tmp_mask =             (mask_m[31] << 28)
          | (mask_m[32] << 26) | (mask_m[33] << 24)
          | (mask_m[34] << 22) | (mask_m[35] << 20)
          | (mask_m[36] << 18) | (mask_m[37] << 16)
          | (mask_m[48] << 14) | (mask_m[39] << 12)
          | (mask_m[40] << 10) | (mask_m[41] <<  8)
          | (mask_m[42] <<  6) | (mask_m[43] <<  4)
          | (mask_m[44] <<  2) | (mask_m[45] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
 
    tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
          | (mask_m[18] << 26) | (mask_m[18] << 24)
          | (mask_m[20] << 22) | (mask_m[20] << 20)
          | (mask_m[22] << 18) | (mask_m[22] << 16)
          | (mask_m[24] << 14) | (mask_m[24] << 12)
          | (mask_m[25] << 10) | (mask_m[26] <<  8)
          | (mask_m[27] <<  6) | (mask_m[28] <<  4)
          | (mask_m[29] <<  2) | (mask_m[30] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
 
    tmp_mask = (mask_m[ 0] << 30) | (mask_m[ 1] << 28)
          | (mask_m[ 2] << 26) | (mask_m[ 3] << 24)
          | (mask_m[ 4] << 22) | (mask_m[ 5] << 20)
          | (mask_m[ 6] << 18) | (mask_m[ 7] << 16)
          | (mask_m[ 8] << 14) | (mask_m[ 9] << 12)
          | (mask_m[10] << 10) | (mask_m[11] <<  8)
          | (mask_m[12] <<  6) | (mask_m[13] <<  4)
          | (mask_m[14] <<  2) | (mask_m[15] <<  0);
    OS_REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
 
    tmp_mask =             (mask_p[15] << 28)
          | (mask_p[14] << 26) | (mask_p[13] << 24)
          | (mask_p[12] << 22) | (mask_p[11] << 20)
          | (mask_p[10] << 18) | (mask_p[ 9] << 16)
          | (mask_p[ 8] << 14) | (mask_p[ 7] << 12)
          | (mask_p[ 6] << 10) | (mask_p[ 5] <<  8)
          | (mask_p[ 4] <<  6) | (mask_p[ 3] <<  4)
          | (mask_p[ 2] <<  2) | (mask_p[ 1] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
 
    tmp_mask =             (mask_p[30] << 28)
          | (mask_p[29] << 26) | (mask_p[28] << 24)
          | (mask_p[27] << 22) | (mask_p[26] << 20)
          | (mask_p[25] << 18) | (mask_p[24] << 16)
          | (mask_p[23] << 14) | (mask_p[22] << 12)
          | (mask_p[21] << 10) | (mask_p[20] <<  8)
          | (mask_p[19] <<  6) | (mask_p[18] <<  4)
          | (mask_p[17] <<  2) | (mask_p[16] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
 
    tmp_mask =             (mask_p[45] << 28)
          | (mask_p[44] << 26) | (mask_p[43] << 24)
          | (mask_p[42] << 22) | (mask_p[41] << 20)
          | (mask_p[40] << 18) | (mask_p[39] << 16)
          | (mask_p[38] << 14) | (mask_p[37] << 12)
          | (mask_p[36] << 10) | (mask_p[35] <<  8)
          | (mask_p[34] <<  6) | (mask_p[33] <<  4)
          | (mask_p[32] <<  2) | (mask_p[31] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
 
    tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
          | (mask_p[59] << 26) | (mask_p[58] << 24)
          | (mask_p[57] << 22) | (mask_p[56] << 20)
          | (mask_p[55] << 18) | (mask_p[54] << 16)
          | (mask_p[53] << 14) | (mask_p[52] << 12)
          | (mask_p[51] << 10) | (mask_p[50] <<  8)
          | (mask_p[49] <<  6) | (mask_p[48] <<  4)
          | (mask_p[47] <<  2) | (mask_p[46] <<  0);
    OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
    OS_REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
 
    OS_REG_WRITE_BUFFER_FLUSH(ah);
    OS_REG_WRITE_BUFFER_DISABLE(ah);
}
 
/*
 * Fill all software cached or static hardware state information.
 * Return failure if capabilities are to come from EEPROM and
 * cannot be read.
 */
HAL_BOOL
ar5416FillCapabilityInfo(struct ath_hal *ah)
{
        struct ath_hal_private *ahpriv = AH_PRIVATE(ah);
        HAL_CAPABILITIES *pCap = &ahpriv->ah_caps;
        uint16_t val;
 
        /* Construct wireless mode from EEPROM */
        pCap->halWirelessModes = 0;
        if (ath_hal_eepromGetFlag(ah, AR_EEP_AMODE)) {
                pCap->halWirelessModes |= HAL_MODE_11A
                                       |  HAL_MODE_11NA_HT20
                                       |  HAL_MODE_11NA_HT40PLUS
                                       |  HAL_MODE_11NA_HT40MINUS
                                       ;
        }
        if (ath_hal_eepromGetFlag(ah, AR_EEP_GMODE)) {
                pCap->halWirelessModes |= HAL_MODE_11G
                                       |  HAL_MODE_11NG_HT20
                                       |  HAL_MODE_11NG_HT40PLUS
                                       |  HAL_MODE_11NG_HT40MINUS
                                       ;
                pCap->halWirelessModes |= HAL_MODE_11A
                                       |  HAL_MODE_11NA_HT20
                                       |  HAL_MODE_11NA_HT40PLUS
                                       |  HAL_MODE_11NA_HT40MINUS
                                       ;
        }
 
        pCap->halLow2GhzChan = 2312;
        pCap->halHigh2GhzChan = 2732;
 
        pCap->halLow5GhzChan = 4915;
        pCap->halHigh5GhzChan = 6100;
 
        pCap->halCipherCkipSupport = AH_FALSE;
        pCap->halCipherTkipSupport = AH_TRUE;
        pCap->halCipherAesCcmSupport = ath_hal_eepromGetFlag(ah, AR_EEP_AES);
 
        pCap->halMicCkipSupport    = AH_FALSE;
        pCap->halMicTkipSupport    = AH_TRUE;
        pCap->halMicAesCcmSupport  = ath_hal_eepromGetFlag(ah, AR_EEP_AES);
        /*
         * Starting with Griffin TX+RX mic keys can be combined
         * in one key cache slot.
         */
        pCap->halTkipMicTxRxKeySupport = AH_TRUE;
        pCap->halChanSpreadSupport = AH_TRUE;
        pCap->halSleepAfterBeaconBroken = AH_TRUE;
 
        pCap->halCompressSupport = AH_FALSE;
        pCap->halBurstSupport = AH_TRUE;
        pCap->halFastFramesSupport = AH_TRUE;
        pCap->halChapTuningSupport = AH_TRUE;
        pCap->halTurboPrimeSupport = AH_TRUE;
 
        pCap->halTurboGSupport = pCap->halWirelessModes & HAL_MODE_108G;
 
        pCap->halPSPollBroken = AH_TRUE;        /* XXX fixed in later revs? */
        pCap->halNumMRRetries = 4;              /* Hardware supports 4 MRR */
        pCap->halNumTxMaps = 1;                 /* Single TX ptr per descr */
        pCap->halVEOLSupport = AH_TRUE;
        pCap->halBssIdMaskSupport = AH_TRUE;
        pCap->halMcastKeySrchSupport = AH_TRUE; /* Works on AR5416 and later */
        pCap->halTsfAddSupport = AH_TRUE;
        pCap->hal4AddrAggrSupport = AH_FALSE;   /* Broken in Owl */
        pCap->halSpectralScanSupport = AH_FALSE;        /* AR9280 and later */
 
        if (ath_hal_eepromGet(ah, AR_EEP_MAXQCU, &val) == HAL_OK)
                pCap->halTotalQueues = val;
        else
                pCap->halTotalQueues = HAL_NUM_TX_QUEUES;
 
        if (ath_hal_eepromGet(ah, AR_EEP_KCENTRIES, &val) == HAL_OK)
                pCap->halKeyCacheSize = val;
        else
                pCap->halKeyCacheSize = AR5416_KEYTABLE_SIZE;
 
        /* XXX Which chips? */
        pCap->halChanHalfRate = AH_TRUE;
        pCap->halChanQuarterRate = AH_TRUE;
 
        pCap->halTxTstampPrecision = 32;
        pCap->halRxTstampPrecision = 32;
        pCap->halHwPhyCounterSupport = AH_TRUE;
        pCap->halIntrMask = HAL_INT_COMMON
                        | HAL_INT_RX
                        | HAL_INT_TX
                        | HAL_INT_FATAL
                        | HAL_INT_BNR
                        | HAL_INT_BMISC
                        | HAL_INT_DTIMSYNC
                        | HAL_INT_TSFOOR
                        | HAL_INT_CST
                        | HAL_INT_GTT
                        ;
 
        pCap->halFastCCSupport = AH_TRUE;
        pCap->halNumGpioPins = 14;
        pCap->halWowSupport = AH_FALSE;
        pCap->halWowMatchPatternExact = AH_FALSE;
        pCap->halBtCoexSupport = AH_FALSE;      /* XXX need support */
        pCap->halAutoSleepSupport = AH_FALSE;
        pCap->hal4kbSplitTransSupport = AH_TRUE;
        /* Disable this so Block-ACK works correctly */
        pCap->halHasRxSelfLinkedTail = AH_FALSE;
#if 0   /* XXX not yet */
        pCap->halNumAntCfg2GHz = ar5416GetNumAntConfig(ahp, HAL_FREQ_BAND_2GHZ);
        pCap->halNumAntCfg5GHz = ar5416GetNumAntConfig(ahp, HAL_FREQ_BAND_5GHZ);
#endif
        pCap->halHTSupport = AH_TRUE;
        pCap->halTxChainMask = ath_hal_eepromGet(ah, AR_EEP_TXMASK, AH_NULL);
        /* XXX CB71 uses GPIO 0 to indicate 3 rx chains */
        pCap->halRxChainMask = ath_hal_eepromGet(ah, AR_EEP_RXMASK, AH_NULL);
        /* AR5416 may have 3 antennas but is a 2x2 stream device */
        pCap->halTxStreams = 2;
        pCap->halRxStreams = 2;
 
        /*
         * If the TX or RX chainmask has less than 2 chains active,
         * mark it as a 1-stream device for the relevant stream.
         */
        if (owl_get_ntxchains(pCap->halTxChainMask) == 1)
                pCap->halTxStreams = 1;
        /* XXX Eww */
        if (owl_get_ntxchains(pCap->halRxChainMask) == 1)
                pCap->halRxStreams = 1;
        pCap->halRtsAggrLimit = 8*1024;         /* Owl 2.0 limit */
        pCap->halMbssidAggrSupport = AH_FALSE;  /* Broken on Owl */
        pCap->halForcePpmSupport = AH_TRUE;
        pCap->halEnhancedPmSupport = AH_TRUE;
        pCap->halBssidMatchSupport = AH_TRUE;
        pCap->halGTTSupport = AH_TRUE;
        pCap->halCSTSupport = AH_TRUE;
        pCap->halEnhancedDfsSupport = AH_FALSE;
        /*
         * BB Read WAR: this is only for AR5008/AR9001 NICs
         * It is also set individually in the AR91xx attach functions.
         */
        if (AR_SREV_OWL(ah))
                pCap->halHasBBReadWar = AH_TRUE;
 
        if (ath_hal_eepromGetFlag(ah, AR_EEP_RFKILL) &&
            ath_hal_eepromGet(ah, AR_EEP_RFSILENT, &ahpriv->ah_rfsilent) == HAL_OK) {
                /* NB: enabled by default */
                ahpriv->ah_rfkillEnabled = AH_TRUE;
                pCap->halRfSilentSupport = AH_TRUE;
        }
 
        /*
         * The MAC will mark frames as RXed if there's a descriptor
         * to write them to. So if it hits a self-linked final descriptor,
         * it'll keep ACKing frames even though they're being silently
         * dropped. Thus, this particular feature of the driver can't
         * be used for 802.11n devices.
         */
        ahpriv->ah_rxornIsFatal = AH_FALSE;
 
        /*
         * If it's a PCI NIC, ask the HAL OS layer to serialise
         * register access, or SMP machines may cause the hardware
         * to hang. This is applicable to AR5416 and AR9220; I'm not
         * sure about AR9160 or AR9227.
         */
        if (! AH_PRIVATE(ah)->ah_ispcie)
                pCap->halSerialiseRegWar = 1;
 
        /*
         * AR5416 and later NICs support MYBEACON filtering.
         */
        pCap->halRxDoMyBeacon = AH_TRUE;
 
        return AH_TRUE;
}
 
static const char*
ar5416Probe(uint16_t vendorid, uint16_t devid)
{
        if (vendorid == ATHEROS_VENDOR_ID) {
                if (devid == AR5416_DEVID_PCI)
                        return "Atheros 5416";
                if (devid == AR5416_DEVID_PCIE)
                        return "Atheros 5418";
        }
        return AH_NULL;
}
AH_CHIP(AR5416, ar5416Probe, ar5416Attach);