/*
* 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.
*/
void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
{
struct ar5416AniState *aniState = &ah->curchan->ani;
struct ath9k_channel *chan = ah->curchan;
struct ath_common *common = ath9k_hw_common(ah);
if (!DO_ANI(ah))
return;
if (!use_new_ani(ah))
return ath9k_ani_reset_old(ah, is_scanning);
BUG_ON(aniState == NULL);
ah->stats.ast_ani_reset++;
/* only allow a subset of functions in AP mode */
if (ah->opmode == NL80211_IFTYPE_AP) {
if (IS_CHAN_2GHZ(chan)) {
ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL |
ATH9K_ANI_FIRSTEP_LEVEL);
if (AR_SREV_9300_20_OR_LATER(ah))
ah->ani_function |= ATH9K_ANI_MRC_CCK;
} else
ah->ani_function = 0;
}
/* always allow mode (on/off) to be controlled */
ah->ani_function |= ATH9K_ANI_MODE;
if (is_scanning ||
(ah->opmode != NL80211_IFTYPE_STATION &&
ah->opmode != NL80211_IFTYPE_ADHOC)) {
/*
* If we're scanning or in AP mode, the defaults (ini)
* should be in place. For an AP we assume the historical
* levels for this channel are probably outdated so start
* from defaults instead.
*/
if (aniState->ofdmNoiseImmunityLevel !=
ATH9K_ANI_OFDM_DEF_LEVEL ||
aniState->cckNoiseImmunityLevel !=
ATH9K_ANI_CCK_DEF_LEVEL) {
ath_dbg(common, ATH_DBG_ANI,
"Restore defaults: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
ah->opmode,
chan->channel,
chan->channelFlags,
is_scanning,
aniState->ofdmNoiseImmunityLevel,
aniState->cckNoiseImmunityLevel);
aniState->update_ani = false;
ath9k_hw_set_ofdm_nil(ah, ATH9K_ANI_OFDM_DEF_LEVEL);
ath9k_hw_set_cck_nil(ah, ATH9K_ANI_CCK_DEF_LEVEL);
}
} else {
/*
* restore historical levels for this channel
*/
ath_dbg(common, ATH_DBG_ANI,
"Restore history: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
ah->opmode,
chan->channel,
chan->channelFlags,
is_scanning,
aniState->ofdmNoiseImmunityLevel,
aniState->cckNoiseImmunityLevel);
aniState->update_ani = true;
ath9k_hw_set_ofdm_nil(ah,
aniState->ofdmNoiseImmunityLevel);
ath9k_hw_set_cck_nil(ah,
aniState->cckNoiseImmunityLevel);
}
/*
* enable phy counters if hw supports or if not, enable phy
* interrupts (so we can count each one)
*/
ath9k_ani_restart(ah);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING);
REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
REGWRITE_BUFFER_FLUSH(ah);
}
void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
{
struct ar5416AniState *aniState = &ah->curchan->ani;
struct ath9k_channel *chan = ah->curchan;
struct ath_common *common = ath9k_hw_common(ah);
if (!DO_ANI(ah))
return;
if (!use_new_ani(ah))
return ath9k_ani_reset_old(ah, is_scanning);
BUG_ON(aniState == NULL);
ah->stats.ast_ani_reset++;
/* */
if (ah->opmode == NL80211_IFTYPE_AP) {
if (IS_CHAN_2GHZ(chan)) {
ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL |
ATH9K_ANI_FIRSTEP_LEVEL);
if (AR_SREV_9300_20_OR_LATER(ah))
ah->ani_function |= ATH9K_ANI_MRC_CCK;
} else
ah->ani_function = 0;
}
/* */
ah->ani_function |= ATH9K_ANI_MODE;
if (is_scanning ||
(ah->opmode != NL80211_IFTYPE_STATION &&
ah->opmode != NL80211_IFTYPE_ADHOC)) {
/*
*/
if (aniState->ofdmNoiseImmunityLevel !=
ATH9K_ANI_OFDM_DEF_LEVEL ||
aniState->cckNoiseImmunityLevel !=
ATH9K_ANI_CCK_DEF_LEVEL) {
ath_dbg(common, ANI,
"Restore defaults: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
ah->opmode,
chan->channel,
chan->channelFlags,
is_scanning,
aniState->ofdmNoiseImmunityLevel,
aniState->cckNoiseImmunityLevel);
aniState->update_ani = false;
ath9k_hw_set_ofdm_nil(ah, ATH9K_ANI_OFDM_DEF_LEVEL);
ath9k_hw_set_cck_nil(ah, ATH9K_ANI_CCK_DEF_LEVEL);
}
} else {
/*
*/
ath_dbg(common, ANI,
"Restore history: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
ah->opmode,
chan->channel,
chan->channelFlags,
is_scanning,
aniState->ofdmNoiseImmunityLevel,
aniState->cckNoiseImmunityLevel);
aniState->update_ani = true;
ath9k_hw_set_ofdm_nil(ah,
aniState->ofdmNoiseImmunityLevel);
ath9k_hw_set_cck_nil(ah,
aniState->cckNoiseImmunityLevel);
}
/*
*/
ath9k_ani_restart(ah);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING);
REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
REGWRITE_BUFFER_FLUSH(ah);
}