diff options
Diffstat (limited to 'package/madwifi/patches/383-ibss_hostap.patch')
| -rw-r--r-- | package/madwifi/patches/383-ibss_hostap.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/package/madwifi/patches/383-ibss_hostap.patch b/package/madwifi/patches/383-ibss_hostap.patch new file mode 100644 index 000000000..d449c3037 --- /dev/null +++ b/package/madwifi/patches/383-ibss_hostap.patch @@ -0,0 +1,105 @@ +--- a/ath/if_ath.c ++++ b/ath/if_ath.c +@@ -1452,6 +1452,23 @@ ath_vap_create(struct ieee80211com *ic, + sc->sc_nstavaps++; + else if (opmode == IEEE80211_M_MONITOR) + sc->sc_nmonvaps++; ++ ++ ++ /* Driving the HAL in IBSS sometimes adapts the TSF and other timing registers ++ * from received beacons/probes. If that happens, expected TX interrupts may ++ * not occur until next reset. Which triggers the "lost beacon" tasklet. ++ * Resulting effectively in not sending packets for minutes. Because that only ++ * happens in large mesh networks, this mode needs to be activated by a kernel ++ * module parameter: hostap_for_ibss=1. Note that using this mode has side ++ * effects. Such as not supressing beacons/probe answers randomly when ++ * receiving other node beacons. It's recommended to lower the beacon interval ++ * then. When using an IBSS-VAP together with an HOSTAP-VAP, you may also need ++ * to re-trigger IBSS beacon generation after creating the HOSTAP-VAP by ++ * issueing "iwpriv athX bintval 1000". ++ */ ++ if ((flags & IEEE80211_NO_STABEACONS) && (ic->ic_opmode == IEEE80211_M_IBSS)) ++ sc->sc_opmode = HAL_M_HOSTAP; ++ else + /* + * Adhoc demo mode is a pseudo mode; to the HAL it's + * just IBSS mode and the driver doesn't use management +@@ -4279,7 +4296,8 @@ ath_calcrxfilter(struct ath_softc *sc) + if (ic->ic_opmode != IEEE80211_M_HOSTAP && (dev->flags & IFF_PROMISC)) + rfilt |= HAL_RX_FILTER_PROM; + if (ic->ic_opmode == IEEE80211_M_STA || +- sc->sc_opmode == HAL_M_IBSS || /* NB: AHDEMO too */ ++ ic->ic_opmode == IEEE80211_M_IBSS || ++ ic->ic_opmode == IEEE80211_M_AHDEMO || + (sc->sc_nostabeacons) || sc->sc_scanning || + (ic->ic_opmode == IEEE80211_M_HOSTAP)) + rfilt |= HAL_RX_FILTER_BEACON; +@@ -6435,6 +6453,33 @@ ath_capture(struct net_device *dev, cons + } + + /* ++ * Advances (forwards/adds) a microsecond value to current chip's TSF registers ++ */ ++ ++/* from ath_info.c */ ++#define AR5K_TSF_L32_5210 0x806c /* TSF (lower 32 bits) */ ++#define AR5K_TSF_L32_5211 0x804c ++#define AR5K_TSF_L32 (ar_device(ah->ah_sc->devid) == 5210 ? \ ++ AR5K_TSF_L32_5210 : AR5K_TSF_L32_5211) ++ ++#define AR5K_TSF_U32_5210 0x8070 ++#define AR5K_TSF_U32_5211 0x8050 ++#define AR5K_TSF_U32 (ar_device(ah->ah_sc->devid) == 5210 ? \ ++ AR5K_TSF_U32_5210 : AR5K_TSF_U32_5211) ++ ++static inline void ath_hal_settsf64(struct ath_hal *ah, u_int64_t tsf_adv) ++{ ++ ATH_HAL_LOCK_IRQ(ah->ah_sc); ++ ath_hal_set_function(__func__); ++ tsf_adv += ah->ah_getTsf64(ah); ++ OS_REG_WRITE(ah, AR5K_TSF_L32, 0ll); ++ OS_REG_WRITE(ah, AR5K_TSF_U32, (tsf_adv >> 32) & 0xffffffffll); ++ OS_REG_WRITE(ah, AR5K_TSF_L32, (tsf_adv >> 00) & 0xffffffffll); ++ ath_hal_set_function(NULL); ++ ATH_HAL_UNLOCK_IRQ(ah->ah_sc); ++} ++ ++/* + * Intercept management frames to collect beacon RSSI data and to do + * ibss merges. This function is called for all management frames, + * including those belonging to other BSS. +@@ -6487,10 +6532,19 @@ ath_recv_mgmt(struct ieee80211vap * vap, + DPRINTF(sc, ATH_DEBUG_BEACON, + "Updated beacon timers\n"); + } +- if ((sc->sc_opmode == HAL_M_IBSS) && +- IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid) && +- ath_hw_check_atim(sc, 1, vap->iv_bss->ni_intval)) { +- DPRINTF(sc, ATH_DEBUG_ANY, "Fixed ATIM window after beacon recv\n"); ++ if ((vap->iv_opmode == IEEE80211_M_IBSS) && ++ (sc->sc_opmode == HAL_M_HOSTAP) && ++ IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid)) { ++ /* In this mode, we drive the HAL in HOSTAP mode. Hence ++ * we do the IBSS merging in software. Also do not merge ++ * if the difference it too small. Otherwise we are playing ++ * tsf-pingpong with other vendors drivers */ ++ beacon_tsf = le64_to_cpu(ni->ni_tstamp.tsf); ++ if (beacon_tsf > rtsf + 0xffff) { ++ ath_hal_settsf64(sc->sc_ah, beacon_tsf - rtsf); ++ ieee80211_ibss_merge(ni); ++ } ++ break; + } + /* NB: Fall Through */ + case IEEE80211_FC0_SUBTYPE_PROBE_RESP: +@@ -6563,6 +6617,10 @@ ath_recv_mgmt(struct ieee80211vap * vap, + #endif + if (do_merge) + ieee80211_ibss_merge(ni); ++ ++ if ((sc->sc_opmode == HAL_M_IBSS) && ++ ath_hw_check_atim(sc, 1, vap->iv_bss->ni_intval)) ++ DPRINTF(sc, ATH_DEBUG_ANY, "Fixed ATIM window after beacon recv\n"); + } + break; + } |