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; }