ar5211_attach.c

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/*-
 * SPDX-License-Identifier: ISC
 *
 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
 * Copyright (c) 2002-2006 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 "ar5211/ar5211.h"
#include "ar5211/ar5211reg.h"
#include "ar5211/ar5211phy.h"
 
#include "ah_eeprom_v3.h"
 
static HAL_BOOL ar5211GetChannelEdges(struct ath_hal *ah,
                uint16_t flags, uint16_t *low, uint16_t *high);
static HAL_BOOL ar5211GetChipPowerLimits(struct ath_hal *ah,
                struct ieee80211_channel *chan);
 
static void ar5211ConfigPCIE(struct ath_hal *ah, HAL_BOOL restore,
                HAL_BOOL power_off);
static void ar5211DisablePCIE(struct ath_hal *ah);
 
static const struct ath_hal_private ar5211hal = {{
        .ah_magic                       = AR5211_MAGIC,
 
        .ah_getRateTable                = ar5211GetRateTable,
        .ah_detach                      = ar5211Detach,
 
        /* Reset Functions */
        .ah_reset                       = ar5211Reset,
        .ah_phyDisable                  = ar5211PhyDisable,
        .ah_disable                     = ar5211Disable,
        .ah_configPCIE                  = ar5211ConfigPCIE,
        .ah_disablePCIE                 = ar5211DisablePCIE,
        .ah_setPCUConfig                = ar5211SetPCUConfig,
        .ah_perCalibration              = ar5211PerCalibration,
        .ah_perCalibrationN             = ar5211PerCalibrationN,
        .ah_resetCalValid               = ar5211ResetCalValid,
        .ah_setTxPowerLimit             = ar5211SetTxPowerLimit,
        .ah_getChanNoise                = ath_hal_getChanNoise,
 
        /* Transmit functions */
        .ah_updateTxTrigLevel           = ar5211UpdateTxTrigLevel,
        .ah_setupTxQueue                = ar5211SetupTxQueue,
        .ah_setTxQueueProps             = ar5211SetTxQueueProps,
        .ah_getTxQueueProps             = ar5211GetTxQueueProps,
        .ah_releaseTxQueue              = ar5211ReleaseTxQueue,
        .ah_resetTxQueue                = ar5211ResetTxQueue,
        .ah_getTxDP                     = ar5211GetTxDP,
        .ah_setTxDP                     = ar5211SetTxDP,
        .ah_numTxPending                = ar5211NumTxPending,
        .ah_startTxDma                  = ar5211StartTxDma,
        .ah_stopTxDma                   = ar5211StopTxDma,
        .ah_setupTxDesc                 = ar5211SetupTxDesc,
        .ah_setupXTxDesc                = ar5211SetupXTxDesc,
        .ah_fillTxDesc                  = ar5211FillTxDesc,
        .ah_procTxDesc                  = ar5211ProcTxDesc,
        .ah_getTxIntrQueue              = ar5211GetTxIntrQueue,
        .ah_reqTxIntrDesc               = ar5211IntrReqTxDesc,
        .ah_getTxCompletionRates        = ar5211GetTxCompletionRates,
        .ah_setTxDescLink               = ar5211SetTxDescLink,
        .ah_getTxDescLink               = ar5211GetTxDescLink,
        .ah_getTxDescLinkPtr            = ar5211GetTxDescLinkPtr,
 
        /* RX Functions */
        .ah_getRxDP                     = ar5211GetRxDP,
        .ah_setRxDP                     = ar5211SetRxDP,
        .ah_enableReceive               = ar5211EnableReceive,
        .ah_stopDmaReceive              = ar5211StopDmaReceive,
        .ah_startPcuReceive             = ar5211StartPcuReceive,
        .ah_stopPcuReceive              = ar5211StopPcuReceive,
        .ah_setMulticastFilter          = ar5211SetMulticastFilter,
        .ah_setMulticastFilterIndex     = ar5211SetMulticastFilterIndex,
        .ah_clrMulticastFilterIndex     = ar5211ClrMulticastFilterIndex,
        .ah_getRxFilter                 = ar5211GetRxFilter,
        .ah_setRxFilter                 = ar5211SetRxFilter,
        .ah_setupRxDesc                 = ar5211SetupRxDesc,
        .ah_procRxDesc                  = ar5211ProcRxDesc,
        .ah_rxMonitor                   = ar5211RxMonitor,
        .ah_aniPoll                     = ar5211AniPoll,
        .ah_procMibEvent                = ar5211MibEvent,
 
        /* Misc Functions */
        .ah_getCapability               = ar5211GetCapability,
        .ah_setCapability               = ar5211SetCapability,
        .ah_getDiagState                = ar5211GetDiagState,
        .ah_getMacAddress               = ar5211GetMacAddress,
        .ah_setMacAddress               = ar5211SetMacAddress,
        .ah_getBssIdMask                = ar5211GetBssIdMask,
        .ah_setBssIdMask                = ar5211SetBssIdMask,
        .ah_setRegulatoryDomain         = ar5211SetRegulatoryDomain,
        .ah_setLedState                 = ar5211SetLedState,
        .ah_writeAssocid                = ar5211WriteAssocid,
        .ah_gpioCfgInput                = ar5211GpioCfgInput,
        .ah_gpioCfgOutput               = ar5211GpioCfgOutput,
        .ah_gpioGet                     = ar5211GpioGet,
        .ah_gpioSet                     = ar5211GpioSet,
        .ah_gpioSetIntr                 = ar5211GpioSetIntr,
        .ah_getTsf32                    = ar5211GetTsf32,
        .ah_getTsf64                    = ar5211GetTsf64,
        .ah_resetTsf                    = ar5211ResetTsf,
        .ah_detectCardPresent           = ar5211DetectCardPresent,
        .ah_updateMibCounters           = ar5211UpdateMibCounters,
        .ah_getRfGain                   = ar5211GetRfgain,
        .ah_getDefAntenna               = ar5211GetDefAntenna,
        .ah_setDefAntenna               = ar5211SetDefAntenna,
        .ah_getAntennaSwitch            = ar5211GetAntennaSwitch,
        .ah_setAntennaSwitch            = ar5211SetAntennaSwitch,
        .ah_setSifsTime                 = ar5211SetSifsTime,
        .ah_getSifsTime                 = ar5211GetSifsTime,
        .ah_setSlotTime                 = ar5211SetSlotTime,
        .ah_getSlotTime                 = ar5211GetSlotTime,
        .ah_setAckTimeout               = ar5211SetAckTimeout,
        .ah_getAckTimeout               = ar5211GetAckTimeout,
        .ah_setAckCTSRate               = ar5211SetAckCTSRate,
        .ah_getAckCTSRate               = ar5211GetAckCTSRate,
        .ah_setCTSTimeout               = ar5211SetCTSTimeout,
        .ah_getCTSTimeout               = ar5211GetCTSTimeout,
        .ah_setDecompMask               = ar5211SetDecompMask,
        .ah_setCoverageClass            = ar5211SetCoverageClass,
        .ah_setQuiet                    = ar5211SetQuiet,
        .ah_get11nExtBusy               = ar5211Get11nExtBusy,
        .ah_getMibCycleCounts           = ar5211GetMibCycleCounts,
        .ah_setChainMasks               = ar5211SetChainMasks,
        .ah_enableDfs                   = ar5211EnableDfs,
        .ah_getDfsThresh                = ar5211GetDfsThresh,
        /* XXX procRadarEvent */
        /* XXX isFastClockEnabled */
        .ah_setNav                      = ar5211SetNav,
        .ah_getNav                      = ar5211GetNav,
 
        /* Key Cache Functions */
        .ah_getKeyCacheSize             = ar5211GetKeyCacheSize,
        .ah_resetKeyCacheEntry          = ar5211ResetKeyCacheEntry,
        .ah_isKeyCacheEntryValid        = ar5211IsKeyCacheEntryValid,
        .ah_setKeyCacheEntry            = ar5211SetKeyCacheEntry,
        .ah_setKeyCacheEntryMac         = ar5211SetKeyCacheEntryMac,
 
        /* Power Management Functions */
        .ah_setPowerMode                = ar5211SetPowerMode,
        .ah_getPowerMode                = ar5211GetPowerMode,
 
        /* Beacon Functions */
        .ah_setBeaconTimers             = ar5211SetBeaconTimers,
        .ah_beaconInit                  = ar5211BeaconInit,
        .ah_setStationBeaconTimers      = ar5211SetStaBeaconTimers,
        .ah_resetStationBeaconTimers    = ar5211ResetStaBeaconTimers,
        .ah_getNextTBTT                 = ar5211GetNextTBTT,
 
        /* Interrupt Functions */
        .ah_isInterruptPending          = ar5211IsInterruptPending,
        .ah_getPendingInterrupts        = ar5211GetPendingInterrupts,
        .ah_getInterrupts               = ar5211GetInterrupts,
        .ah_setInterrupts               = ar5211SetInterrupts },
 
        .ah_getChannelEdges             = ar5211GetChannelEdges,
        .ah_getWirelessModes            = ar5211GetWirelessModes,
        .ah_eepromRead                  = ar5211EepromRead,
#ifdef AH_SUPPORT_WRITE_EEPROM
        .ah_eepromWrite                 = ar5211EepromWrite,
#endif
        .ah_getChipPowerLimits          = ar5211GetChipPowerLimits,
};
 
static HAL_BOOL ar5211ChipTest(struct ath_hal *);
static HAL_BOOL ar5211FillCapabilityInfo(struct ath_hal *ah);
 
/*
 * Return the revsion id for the radio chip.  This
 * fetched via the PHY.
 */
static uint32_t
ar5211GetRadioRev(struct ath_hal *ah)
{
        uint32_t val;
        int i;
 
        OS_REG_WRITE(ah, (AR_PHY_BASE + (0x34 << 2)), 0x00001c16);
        for (i = 0; i < 8; i++)
                OS_REG_WRITE(ah, (AR_PHY_BASE + (0x20 << 2)), 0x00010000);
        val = (OS_REG_READ(ah, AR_PHY_BASE + (256 << 2)) >> 24) & 0xff;
        val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
        return ath_hal_reverseBits(val, 8);
}
 
/*
 * Attach for an AR5211 part.
 */
static struct ath_hal *
ar5211Attach(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)
{
#define N(a)    (sizeof(a)/sizeof(a[0]))
        struct ath_hal_5211 *ahp;
        struct ath_hal *ah;
        uint32_t val;
        uint16_t eeval;
        HAL_STATUS ecode;
 
        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 */
        ahp = ath_hal_malloc(sizeof (struct ath_hal_5211));
        if (ahp == AH_NULL) {
                HALDEBUG(AH_NULL, HAL_DEBUG_ANY,
                    "%s: cannot allocate memory for state block\n", __func__);
                ecode = HAL_ENOMEM;
                goto bad;
        }
        ah = &ahp->ah_priv.h;
        /* set initial values */
        OS_MEMCPY(&ahp->ah_priv, &ar5211hal, sizeof(struct ath_hal_private));
        ah->ah_sc = sc;
        ah->ah_st = st;
        ah->ah_sh = sh;
 
        ah->ah_devid = devid;                   /* NB: for AH_DEBUG_ALQ */
        AH_PRIVATE(ah)->ah_devid = devid;
        AH_PRIVATE(ah)->ah_subvendorid = 0;     /* XXX */
 
        AH_PRIVATE(ah)->ah_powerLimit = MAX_RATE_POWER;
        AH_PRIVATE(ah)->ah_tpScale = HAL_TP_SCALE_MAX;  /* no scaling */
 
        ahp->ah_diversityControl = HAL_ANT_VARIABLE;
        ahp->ah_staId1Defaults = 0;
        ahp->ah_rssiThr = INIT_RSSI_THR;
        ahp->ah_sifstime = (u_int) -1;
        ahp->ah_slottime = (u_int) -1;
        ahp->ah_acktimeout = (u_int) -1;
        ahp->ah_ctstimeout = (u_int) -1;
 
        if (!ar5211ChipReset(ah, AH_NULL)) {    /* reset chip */
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__);
                ecode = HAL_EIO;
                goto bad;
        }
        if (AH_PRIVATE(ah)->ah_devid == AR5211_FPGA11B) {
                /* set it back to OFDM mode to be able to read analog rev id */
                OS_REG_WRITE(ah, AR5211_PHY_MODE, AR5211_PHY_MODE_OFDM);
                OS_REG_WRITE(ah, AR_PHY_PLL_CTL, AR_PHY_PLL_CTL_44);
                OS_DELAY(1000);
        }
 
        /* Read Revisions from Chips */
        val = OS_REG_READ(ah, AR_SREV) & AR_SREV_ID_M;
        AH_PRIVATE(ah)->ah_macVersion = val >> AR_SREV_ID_S;
        AH_PRIVATE(ah)->ah_macRev = val & AR_SREV_REVISION_M;
 
        if (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_MAUI_2 ||
            AH_PRIVATE(ah)->ah_macVersion > AR_SREV_VERSION_OAHU) {
                HALDEBUG(ah, HAL_DEBUG_ANY,
                    "%s: Mac Chip Rev 0x%x is not supported by this driver\n",
                    __func__, AH_PRIVATE(ah)->ah_macVersion);
                ecode = HAL_ENOTSUPP;
                goto bad;
        }
 
        AH_PRIVATE(ah)->ah_phyRev = OS_REG_READ(ah, AR_PHY_CHIP_ID);
 
        if (!ar5211ChipTest(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. */
        if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU) {
                OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000007);
        } else {
                OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000047);
        }
        OS_DELAY(2000);
 
        /* Read Radio Chip Rev Extract */
        AH_PRIVATE(ah)->ah_analog5GhzRev = ar5211GetRadioRev(ah);
        if ((AH_PRIVATE(ah)->ah_analog5GhzRev & 0xf0) != RAD5_SREV_MAJOR) {
                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;
        }
 
        val = (OS_REG_READ(ah, AR_PCICFG) & AR_PCICFG_EEPROM_SIZE_M) >>
               AR_PCICFG_EEPROM_SIZE_S;
        if (val != AR_PCICFG_EEPROM_SIZE_16K) {
                HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unsupported EEPROM size "
                    "%u (0x%x) found\n", __func__, val, val);
                ecode = HAL_EESIZE;
                goto bad;
        }
        ecode = ath_hal_legacyEepromAttach(ah);
        if (ecode != HAL_OK) {
                goto bad;
        }
 
        /* If Bmode and AR5211, verify 2.4 analog exists */
        if (AH_PRIVATE(ah)->ah_macVersion >= AR_SREV_VERSION_OAHU &&
            ath_hal_eepromGetFlag(ah, AR_EEP_BMODE)) {
                /* Set correct Baseband to analog shift setting to access analog chips. */
                OS_REG_WRITE(ah, AR_PHY_BASE, 0x00004007);
                OS_DELAY(2000);
                AH_PRIVATE(ah)->ah_analog2GhzRev = ar5211GetRadioRev(ah);
 
                /* Set baseband for 5GHz chip */
                OS_REG_WRITE(ah, AR_PHY_BASE, 0x00000007);
                OS_DELAY(2000);
                if ((AH_PRIVATE(ah)->ah_analog2GhzRev & 0xF0) != RAD2_SREV_MAJOR) {
                        HALDEBUG(ah, HAL_DEBUG_ANY,
                            "%s: 2G Radio Chip Rev 0x%x is not supported by "
                            "this driver\n", __func__,
                            AH_PRIVATE(ah)->ah_analog2GhzRev);
                        ecode = HAL_ENOTSUPP;
                        goto bad;
                }
        } else {
                ath_hal_eepromSet(ah, AR_EEP_BMODE, AH_FALSE);
        }
 
        ecode = ath_hal_eepromGet(ah, AR_EEP_REGDMN_0, &eeval);
        if (ecode != HAL_OK) {
                HALDEBUG(ah, HAL_DEBUG_ANY,
                    "%s: cannot read regulatory domain from EEPROM\n",
                    __func__);
                goto bad;
        }
        AH_PRIVATE(ah)->ah_currentRD = eeval;
        AH_PRIVATE(ah)->ah_getNfAdjust = ar5211GetNfAdjust;
 
        /*
         * Got everything we need now to setup the capabilities.
         */
        (void) ar5211FillCapabilityInfo(ah);
 
        /* Initialize gain ladder thermal calibration structure */
        ar5211InitializeGainValues(ah);
 
        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;
        }
 
        HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s: return\n", __func__);
 
        return ah;
bad:
        if (ahp)
                ar5211Detach((struct ath_hal *) ahp);
        if (status)
                *status = ecode;
        return AH_NULL;
#undef N
}
 
void
ar5211Detach(struct ath_hal *ah)
{
        HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s:\n", __func__);
 
        HALASSERT(ah != AH_NULL);
        HALASSERT(ah->ah_magic == AR5211_MAGIC);
 
        ath_hal_eepromDetach(ah);
        ath_hal_free(ah);
}
 
static HAL_BOOL
ar5211ChipTest(struct ath_hal *ah)
{
        uint32_t regAddr[2] = { AR_STA_ID0, AR_PHY_BASE+(8 << 2) };
        uint32_t regHold[2];
        uint32_t patternData[4] =
            { 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999 };
        int i, j;
 
        /* Test PHY & MAC registers */
        for (i = 0; i < 2; i++) {
                uint32_t addr = regAddr[i];
                uint32_t wrData, rdData;
 
                regHold[i] = OS_REG_READ(ah, addr);
                for (j = 0; j < 0x100; j++) {
                        wrData = (j << 16) | j;
                        OS_REG_WRITE(ah, addr, wrData);
                        rdData = OS_REG_READ(ah, addr);
                        if (rdData != wrData) {
                                HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
                                __func__, addr, wrData, rdData);
                                return AH_FALSE;
                        }
                }
                for (j = 0; j < 4; j++) {
                        wrData = patternData[j];
                        OS_REG_WRITE(ah, addr, wrData);
                        rdData = OS_REG_READ(ah, addr);
                        if (wrData != rdData) {
                                HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
                                        __func__, addr, wrData, rdData);
                                return AH_FALSE;
                        }
                }
                OS_REG_WRITE(ah, regAddr[i], regHold[i]);
        }
        OS_DELAY(100);
        return AH_TRUE;
}
 
/*
 * Store the channel edges for the requested operational mode
 */
static HAL_BOOL
ar5211GetChannelEdges(struct ath_hal *ah,
        uint16_t flags, uint16_t *low, uint16_t *high)
{
        if (flags & IEEE80211_CHAN_5GHZ) {
                *low = 4920;
                *high = 6100;
                return AH_TRUE;
        }
        if (flags & IEEE80211_CHAN_2GHZ &&
            ath_hal_eepromGetFlag(ah, AR_EEP_BMODE)) {
                *low = 2312;
                *high = 2732;
                return AH_TRUE;
        }
        return AH_FALSE;
}
 
static HAL_BOOL
ar5211GetChipPowerLimits(struct ath_hal *ah, struct ieee80211_channel *chan)
{
        /* XXX fill in, this is just a placeholder */
        HALDEBUG(ah, HAL_DEBUG_ATTACH,
            "%s: no min/max power for %u/0x%x\n",
            __func__, chan->ic_freq, chan->ic_flags);
        chan->ic_maxpower = MAX_RATE_POWER;
        chan->ic_minpower = 0;
        return AH_TRUE;
}
 
static void
ar5211ConfigPCIE(struct ath_hal *ah, HAL_BOOL restore, HAL_BOOL power_off)
{
}
 
static void
ar5211DisablePCIE(struct ath_hal *ah)
{
}
 
/*
 * Fill all software cached or static hardware state information.
 */
static HAL_BOOL
ar5211FillCapabilityInfo(struct ath_hal *ah)
{
        struct ath_hal_private *ahpriv = AH_PRIVATE(ah);
        HAL_CAPABILITIES *pCap = &ahpriv->ah_caps;
 
        /* Construct wireless mode from EEPROM */
        pCap->halWirelessModes = 0;
        if (ath_hal_eepromGetFlag(ah, AR_EEP_AMODE)) {
                pCap->halWirelessModes |= HAL_MODE_11A;
                if (!ath_hal_eepromGetFlag(ah, AR_EEP_TURBO5DISABLE))
                        pCap->halWirelessModes |= HAL_MODE_TURBO;
        }
        if (ath_hal_eepromGetFlag(ah, AR_EEP_BMODE))
                pCap->halWirelessModes |= HAL_MODE_11B;
 
        pCap->halLow2GhzChan = 2312;
        pCap->halHigh2GhzChan = 2732;
        pCap->halLow5GhzChan = 4920;
        pCap->halHigh5GhzChan = 6100;
 
        pCap->halChanSpreadSupport = AH_TRUE;
        pCap->halSleepAfterBeaconBroken = AH_TRUE;
        pCap->halPSPollBroken = AH_TRUE;
        pCap->halVEOLSupport = AH_TRUE;
        pCap->halNumMRRetries = 1;      /* No hardware MRR support */
        pCap->halNumTxMaps = 1;         /* Single TX ptr per descr */
 
        pCap->halTotalQueues = HAL_NUM_TX_QUEUES;
        pCap->halKeyCacheSize = 128;
 
        /* XXX not needed */
        pCap->halChanHalfRate = AH_FALSE;
        pCap->halChanQuarterRate = AH_FALSE;
 
        /*
         * RSSI uses the combined field; some 11n NICs may use
         * the control chain RSSI.
         */
        pCap->halUseCombinedRadarRssi = 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;
        }
 
        pCap->halRxTstampPrecision = 13;
        pCap->halTxTstampPrecision = 16;
        pCap->halIntrMask = HAL_INT_COMMON
                        | HAL_INT_RX
                        | HAL_INT_TX
                        | HAL_INT_FATAL
                        | HAL_INT_BNR
                        | HAL_INT_TIM
                        ;
 
        pCap->hal4kbSplitTransSupport = AH_TRUE;
        pCap->halHasRxSelfLinkedTail = AH_TRUE;
 
        /* XXX might be ok w/ some chip revs */
        ahpriv->ah_rxornIsFatal = AH_TRUE;
        return AH_TRUE;
}
 
static const char*
ar5211Probe(uint16_t vendorid, uint16_t devid)
{
        if (vendorid == ATHEROS_VENDOR_ID) {
                if (devid == AR5211_DEVID || devid == AR5311_DEVID ||
                    devid == AR5211_DEFAULT)
                        return "Atheros 5211";
                if (devid == AR5211_FPGA11B)
                        return "Atheros 5211 (FPGA)";
        }
        return AH_NULL;
}
AH_CHIP(AR5211, ar5211Probe, ar5211Attach);