/*
* Restore the ANI parameters in the HAL and reset the statistics.
* This routine should be called for every hardware reset and for
* every channel change. NOTE: This must be called for every channel
* change for ah_curani to be set correctly.
*/
void
ar5416AniReset(struct ath_hal *ah)
{
struct ath_hal_5416 *ahp = AH5416(ah);
struct ar5416AniState *aniState;
HAL_CHANNEL_INTERNAL *chan = AH_PRIVATE(ah)->ah_curchan;
HAL_CHANNEL_INTERNAL *ichan = AH_PRIVATE(ah)->ah_curchan;
struct ath_hal_private *ap = AH_PRIVATE(ah);
int index;
HALASSERT(chan != AH_NULL);
if (!DO_ANI(ah)) {
return;
}
index = ar5416GetAniChannelIndex(ah, chan);
aniState = &ahp->ah_ani[index];
ahp->ah_curani = aniState;
aniState->phyNoiseSpur = 0;
/* If ANI follows hardware, we don't care what mode we're
in, we should keep the ani parameters */
/*
* ANI is enabled but we're not operating in station
* mode. Reset all parameters. This can happen, for
* example, when starting up AP operation.
*/
if (DO_ANI(ah) && AH_PRIVATE(ah)->ah_opmode != HAL_M_STA && AH_PRIVATE(ah)->ah_opmode != HAL_M_IBSS) {
HDPRINTF(ah, HAL_DBG_ANI, "%s: Reset ANI state opmode %u\n",
__func__, AH_PRIVATE(ah)->ah_opmode);
ahp->ah_stats.ast_ani_reset++;
if (AH_PRIVATE(ah)->ah_opmode == HAL_M_HOSTAP) {
if (IS_CHAN_2GHZ(ichan))
ahp->ah_ani_function = (HAL_ANI_SPUR_IMMUNITY_LEVEL |
HAL_ANI_FIRSTEP_LEVEL);
else
ahp->ah_ani_function = 0;
}
ar5416AniControl(ah, HAL_ANI_NOISE_IMMUNITY_LEVEL, 0, AH_FALSE);
ar5416AniControl(ah, HAL_ANI_SPUR_IMMUNITY_LEVEL, 0, AH_FALSE);
ar5416AniControl(ah, HAL_ANI_FIRSTEP_LEVEL, 0, AH_FALSE);
ar5416AniControl(ah, HAL_ANI_OFDM_WEAK_SIGNAL_DETECTION,
!HAL_ANI_USE_OFDM_WEAK_SIG, AH_FALSE);
ar5416AniControl(ah, HAL_ANI_CCK_WEAK_SIGNAL_THR,
HAL_ANI_CCK_WEAK_SIG_THR, AH_FALSE);
if (AH_PRIVATE(ah)->ah_opmode == HAL_M_HOSTAP)
{
ahp->ah_curani->ofdmTrigHigh = ap->ah_config.ath_hal_ofdmTrigHigh;
ahp->ah_curani->ofdmTrigLow = ap->ah_config.ath_hal_ofdmTrigLow;
ahp->ah_curani->cckTrigHigh = ap->ah_config.ath_hal_cckTrigHigh;
ahp->ah_curani->cckTrigLow = ap->ah_config.ath_hal_cckTrigLow;
}
ar5416AniRestart(ah);
}
else
{
if (aniState->noiseImmunityLevel != 0)
ar5416AniControl(ah, HAL_ANI_NOISE_IMMUNITY_LEVEL,
aniState->noiseImmunityLevel, AH_FALSE);
if (aniState->spurImmunityLevel != 0)
ar5416AniControl(ah, HAL_ANI_SPUR_IMMUNITY_LEVEL,
aniState->spurImmunityLevel,AH_FALSE);
if (aniState->ofdmWeakSigDetectOff)
ar5416AniControl(ah, HAL_ANI_OFDM_WEAK_SIGNAL_DETECTION,
!aniState->ofdmWeakSigDetectOff, AH_FALSE);
if (aniState->cckWeakSigThreshold)
ar5416AniControl(ah, HAL_ANI_CCK_WEAK_SIGNAL_THR,
aniState->cckWeakSigThreshold, AH_FALSE);
if (aniState->firstepLevel != 0)
ar5416AniControl(ah, HAL_ANI_FIRSTEP_LEVEL, aniState->firstepLevel, AH_FALSE);
}
/*
* enable phy counters if hw supports or if not, enable phy interrupts
* (so we can count each one)
*/
if (ahp->ah_hasHwPhyCounters) {
ar5416SetRxFilter(ah,
ar5416GetRxFilter(ah) &~ HAL_RX_FILTER_PHYERR);
ar5416AniRestart(ah);
ENABLE_REG_WRITE_BUFFER
OS_REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING);
OS_REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
OS_REG_WRITE_FLUSH(ah);
DISABLE_REG_WRITE_BUFFER
} else {
/*
* Restore/reset the ANI parameters and reset the statistics.
* This routine must be called for every channel change.
*
* NOTE: This is where ah_curani is set; other ani code assumes
* it is setup to reflect the current channel.
*/
void
ar5416AniReset(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan,
HAL_OPMODE opmode, int restore)
{
struct ath_hal_5212 *ahp = AH5212(ah);
struct ar5212AniState *aniState;
uint32_t rxfilter;
int index;
index = ar5416GetAniChannelIndex(ah, chan);
aniState = &ahp->ah_ani[index];
ahp->ah_curani = aniState;
#if 0
ath_hal_printf(ah,"%s: chan %u/0x%x restore %d setup %d opmode %u\n",
__func__, chan->channel, chan->channelFlags, restore,
aniState->isSetup, opmode);
#else
HALDEBUG(ah, HAL_DEBUG_ANI,
"%s: chan %u/0x%x restore %d setup %d opmode %u\n",
__func__, chan->channel, chan->channelFlags, restore,
aniState->isSetup, opmode);
#endif
OS_MARK(ah, AH_MARK_ANI_RESET, opmode);
/*
* Turn off PHY error frame delivery while we futz with settings.
*/
rxfilter = ar5212GetRxFilter(ah);
ar5212SetRxFilter(ah, rxfilter &~ HAL_RX_FILTER_PHYERR);
/*
* Automatic processing is done only in station mode right now.
*/
if (opmode == HAL_M_STA)
ahp->ah_procPhyErr |= HAL_RSSI_ANI_ENA;
else
ahp->ah_procPhyErr &= ~HAL_RSSI_ANI_ENA;
/*
* Set all ani parameters. We either set them to initial
* values or restore the previous ones for the channel.
* XXX if ANI follows hardware, we don't care what mode we're
* XXX in, we should keep the ani parameters
*/
if (restore && aniState->isSetup) {
ar5416AniControl(ah, HAL_ANI_NOISE_IMMUNITY_LEVEL,
aniState->noiseImmunityLevel);
ar5416AniControl(ah, HAL_ANI_SPUR_IMMUNITY_LEVEL,
aniState->spurImmunityLevel);
ar5416AniControl(ah, HAL_ANI_OFDM_WEAK_SIGNAL_DETECTION,
!aniState->ofdmWeakSigDetectOff);
ar5416AniControl(ah, HAL_ANI_CCK_WEAK_SIGNAL_THR,
aniState->cckWeakSigThreshold);
ar5416AniControl(ah, HAL_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel);
} else {
ar5416AniControl(ah, HAL_ANI_NOISE_IMMUNITY_LEVEL, 0);
ar5416AniControl(ah, HAL_ANI_SPUR_IMMUNITY_LEVEL, 0);
ar5416AniControl(ah, HAL_ANI_OFDM_WEAK_SIGNAL_DETECTION,
AH_TRUE);
ar5416AniControl(ah, HAL_ANI_CCK_WEAK_SIGNAL_THR, AH_FALSE);
ar5416AniControl(ah, HAL_ANI_FIRSTEP_LEVEL, 0);
aniState->isSetup = AH_TRUE;
}
ar5416AniRestart(ah, aniState);
/* restore RX filter mask */
ar5212SetRxFilter(ah, rxfilter);
}
