Date: Sat, 1 Sep 2012 22:00:32 -0700 From: Adrian Chadd <adrian@freebsd.org> To: "Wright, Brett" <Brett.Wright@cooperindustries.com> Cc: freebsd-wireless@freebsd.org Subject: AR5212 radar detection (was Fwd: svn commit: r240001 - head/sys/dev/ath/ath_hal/ar5212) Message-ID: <CAJ-Vmomsh0owN-U=VftRd1GdOe=a81LgGuDiWqKmgYTu9nREhQ@mail.gmail.com>
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Hi, I've been doing some testing with this here AR5212 and straight pulse detection (with no tuning for traffic interference or adjacent traffic.) This does fix most of the pulse detection issues I was seeing. Everything except around 10uS pulses detect okay. So next, NF calibration and tuning. Good luck brett! Adrian ---------- Forwarded message ---------- From: Adrian Chadd <adrian@freebsd.org> Date: 1 September 2012 21:56 Subject: svn commit: r240001 - head/sys/dev/ath/ath_hal/ar5212 To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Author: adrian Date: Sun Sep 2 04:56:29 2012 New Revision: 240001 URL: http://svn.freebsd.org/changeset/base/240001 Log: AR5212 radar pulse fixes. Fix the strong signal diversity capability setting - I had totally messed up the indentation. Set the default values to match what's in the .ini for now, rather than what values I had previously gleaned from places. This seems to work quite well for the early AR5212 NICs I have. Of course, later NICs have different PHYs and the radar configuration is very card/board dependent.. Tested: * ath1: AR5212 mac 5.3 RF5111 phy 4.1 ath1: 2GHz radio: 0x0023; 5GHz radio: 0x0017 This detects 1, 5, 25, 50, 75, 100uS pulses reliably (with no interference.) However, 10uS pulses don't detect reliably. That may be around the transition between short and long pulses so some further tuning may improve things. Modified: head/sys/dev/ath/ath_hal/ar5212/ar5212_misc.c Modified: head/sys/dev/ath/ath_hal/ar5212/ar5212_misc.c ============================================================================== --- head/sys/dev/ath/ath_hal/ar5212/ar5212_misc.c Sun Sep 2 04:39:07 2012 (r240000) +++ head/sys/dev/ath/ath_hal/ar5212/ar5212_misc.c Sun Sep 2 04:56:29 2012 (r240001) @@ -960,13 +960,13 @@ ar5212SetCapability(struct ath_hal *ah, case 1: /* setting */ if (ahp->ah_phyPowerOn) { if (capability == HAL_CAP_STRONG_DIV) { - } - v = OS_REG_READ(ah, AR_PHY_CCK_DETECT); - if (setting) - v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV; - else - v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV; - OS_REG_WRITE(ah, AR_PHY_CCK_DETECT, v); + v = OS_REG_READ(ah, AR_PHY_CCK_DETECT); + if (setting) + v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV; + else + v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV; + OS_REG_WRITE(ah, AR_PHY_CCK_DETECT, v); + } } ahp->ah_diversity = (setting != 0); return AH_TRUE; @@ -1243,11 +1243,11 @@ ar5212EnableDfs(struct ath_hal *ah, HAL_ /* * Parameters for the AR5212 PHY. */ -#define AR5212_DFS_FIRPWR -41 -#define AR5212_DFS_RRSSI 12 -#define AR5212_DFS_HEIGHT 20 -#define AR5212_DFS_PRSSI 22 -#define AR5212_DFS_INBAND 6 +#define AR5212_DFS_FIRPWR -35 +#define AR5212_DFS_RRSSI 20 +#define AR5212_DFS_HEIGHT 14 +#define AR5212_DFS_PRSSI 6 +#define AR5212_DFS_INBAND 4 /* * Default parameters for the AR5413 PHY. @@ -1261,7 +1261,6 @@ ar5212EnableDfs(struct ath_hal *ah, HAL_ #define AR5413_DFS_RELSTEP 31 #define AR5413_DFS_MAXLEN 255 - HAL_BOOL ar5212GetDfsDefaultThresh(struct ath_hal *ah, HAL_PHYERR_PARAM *pe) {
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