Date: Wed, 9 Nov 2011 05:48:20 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r227381 - head/sys/dev/ath/ath_hal/ar5416 Message-ID: <201111090548.pA95mK1x067009@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: adrian Date: Wed Nov 9 05:48:20 2011 New Revision: 227381 URL: http://svn.freebsd.org/changeset/base/227381 Log: Migrate the AR5416 ANI code to use the previously introduced method to fetch the current channel busy statistics, rather than duplicating it here. This forms the (very crude) basis for doing basic channel surveying. Sponsored by: Hobnob, Inc. Modified: head/sys/dev/ath/ath_hal/ar5416/ar5416_ani.c Modified: head/sys/dev/ath/ath_hal/ar5416/ar5416_ani.c ============================================================================== --- head/sys/dev/ath/ath_hal/ar5416/ar5416_ani.c Wed Nov 9 05:45:30 2011 (r227380) +++ head/sys/dev/ath/ath_hal/ar5416/ar5416_ani.c Wed Nov 9 05:48:20 2011 (r227381) @@ -815,15 +815,15 @@ ar5416AniGetListenTime(struct ath_hal *a { struct ath_hal_5212 *ahp = AH5212(ah); struct ar5212AniState *aniState; - uint32_t txFrameCount, rxFrameCount, cycleCount; + uint32_t rxc_pct, extc_pct, rxf_pct, txf_pct; int32_t listenTime; + int good; - txFrameCount = OS_REG_READ(ah, AR_TFCNT); - rxFrameCount = OS_REG_READ(ah, AR_RFCNT); - cycleCount = OS_REG_READ(ah, AR_CCCNT); + good = ar5416GetMibCycleCountsPct(ah, + &rxc_pct, &extc_pct, &rxf_pct, &txf_pct); aniState = ahp->ah_curani; - if (aniState->cycleCount == 0 || aniState->cycleCount > cycleCount) { + if (good == 0) { /* * Cycle counter wrap (or initial call); it's not possible * to accurately calculate a value because the registers @@ -832,14 +832,18 @@ ar5416AniGetListenTime(struct ath_hal *a listenTime = 0; ahp->ah_stats.ast_ani_lzero++; } else { - int32_t ccdelta = cycleCount - aniState->cycleCount; - int32_t rfdelta = rxFrameCount - aniState->rxFrameCount; - int32_t tfdelta = txFrameCount - aniState->txFrameCount; + int32_t ccdelta = AH5416(ah)->ah_cycleCount - aniState->cycleCount; + int32_t rfdelta = AH5416(ah)->ah_rxBusy - aniState->rxFrameCount; + int32_t tfdelta = AH5416(ah)->ah_txBusy - aniState->txFrameCount; listenTime = (ccdelta - rfdelta - tfdelta) / CLOCK_RATE; } - aniState->cycleCount = cycleCount; - aniState->txFrameCount = txFrameCount; - aniState->rxFrameCount = rxFrameCount; + aniState->cycleCount = AH5416(ah)->ah_cycleCount; + aniState->txFrameCount = AH5416(ah)->ah_rxBusy; + aniState->rxFrameCount = AH5416(ah)->ah_txBusy; + + HALDEBUG(ah, HAL_DEBUG_ANI, "rxc=%d, extc=%d, rxf=%d, txf=%d\n", + rxc_pct, extc_pct, rxf_pct, txf_pct); + return listenTime; } @@ -906,10 +910,13 @@ ar5416AniPoll(struct ath_hal *ah, const /* XXX can aniState be null? */ if (aniState == AH_NULL) return; + + /* Always update from the MIB, for statistics gathering */ + listenTime = ar5416AniGetListenTime(ah); + if (!ANI_ENA(ah)) return; - listenTime = ar5416AniGetListenTime(ah); if (listenTime < 0) { ahp->ah_stats.ast_ani_lneg++; /* restart ANI period if listenTime is invalid */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201111090548.pA95mK1x067009>