static bool ath9k_hw_ani_read_counters(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ar5416AniState *aniState = &ah->ani;
u32 phyCnt1, phyCnt2;
int32_t listenTime;
ath_hw_cycle_counters_update(common);
listenTime = ath_hw_get_listen_time(common);
if (listenTime <= 0) {
ah->stats.ast_ani_lneg_or_lzero++;
ath9k_ani_restart(ah);
return false;
}
aniState->listenTime += listenTime;
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
ah->stats.ast_ani_ofdmerrs += phyCnt1 - aniState->ofdmPhyErrCount;
aniState->ofdmPhyErrCount = phyCnt1;
ah->stats.ast_ani_cckerrs += phyCnt2 - aniState->cckPhyErrCount;
aniState->cckPhyErrCount = phyCnt2;
return true;
}
/**
* ath5k_hw_ani_get_listen_time() - Update counters and return listening time
* @ah: The &struct ath5k_hw
* @as: The &struct ath5k_ani_state
*
* Return an approximation of the time spent "listening" in milliseconds (ms)
* since the last call of this function.
* Save a snapshot of the counter values for debugging/statistics.
*/
static int
ath5k_hw_ani_get_listen_time(struct ath5k_hw *ah, struct ath5k_ani_state *as)
{
struct ath_common *common = ath5k_hw_common(ah);
int listen;
spin_lock_bh(&common->cc_lock);
ath_hw_cycle_counters_update(common);
memcpy(&as->last_cc, &common->cc_ani, sizeof(as->last_cc));
/* clears common->cc_ani */
listen = ath_hw_get_listen_time(common);
spin_unlock_bh(&common->cc_lock);
return listen;
}
static bool ath9k_hw_ani_read_counters(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ar5416AniState *aniState = &ah->curchan->ani;
u32 ofdm_base = 0;
u32 cck_base = 0;
u32 ofdmPhyErrCnt, cckPhyErrCnt;
u32 phyCnt1, phyCnt2;
int32_t listenTime;
ath_hw_cycle_counters_update(common);
listenTime = ath_hw_get_listen_time(common);
if (listenTime <= 0) {
ah->stats.ast_ani_lneg_or_lzero++;
ath9k_ani_restart(ah);
return false;
}
if (!use_new_ani(ah)) {
ofdm_base = AR_PHY_COUNTMAX - ah->config.ofdm_trig_high;
cck_base = AR_PHY_COUNTMAX - ah->config.cck_trig_high;
}
aniState->listenTime += listenTime;
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
if (!use_new_ani(ah) && (phyCnt1 < ofdm_base || phyCnt2 < cck_base)) {
if (phyCnt1 < ofdm_base) {
ath_dbg(common, ATH_DBG_ANI,
"phyCnt1 0x%x, resetting counter value to 0x%x\n",
phyCnt1, ofdm_base);
REG_WRITE(ah, AR_PHY_ERR_1, ofdm_base);
REG_WRITE(ah, AR_PHY_ERR_MASK_1,
AR_PHY_ERR_OFDM_TIMING);
}
if (phyCnt2 < cck_base) {
ath_dbg(common, ATH_DBG_ANI,
"phyCnt2 0x%x, resetting counter value to 0x%x\n",
phyCnt2, cck_base);
REG_WRITE(ah, AR_PHY_ERR_2, cck_base);
REG_WRITE(ah, AR_PHY_ERR_MASK_2,
AR_PHY_ERR_CCK_TIMING);
}
return false;
}
ofdmPhyErrCnt = phyCnt1 - ofdm_base;
ah->stats.ast_ani_ofdmerrs +=
ofdmPhyErrCnt - aniState->ofdmPhyErrCount;
aniState->ofdmPhyErrCount = ofdmPhyErrCnt;
cckPhyErrCnt = phyCnt2 - cck_base;
ah->stats.ast_ani_cckerrs +=
cckPhyErrCnt - aniState->cckPhyErrCount;
aniState->cckPhyErrCount = cckPhyErrCnt;
return true;
}
