diff options
Diffstat (limited to 'package/madwifi/patches/454-cca.patch')
| -rw-r--r-- | package/madwifi/patches/454-cca.patch | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/package/madwifi/patches/454-cca.patch b/package/madwifi/patches/454-cca.patch deleted file mode 100644 index 53792cc8fa..0000000000 --- a/package/madwifi/patches/454-cca.patch +++ /dev/null @@ -1,186 +0,0 @@ ---- a/ath/if_ath.c -+++ b/ath/if_ath.c -@@ -383,6 +383,8 @@ static void ath_poll_disable(struct net_ - static void ath_poll_enable(struct net_device *dev); - static void ath_fetch_idle_time(struct ath_softc *sc); - static void ath_set_timing(struct ath_softc *sc); -+static void ath_update_cca_thresh(struct ath_softc *sc); -+static int ath_hw_read_nf(struct ath_softc *sc); - - /* calibrate every 30 secs in steady state but check every second at first. */ - static int ath_calinterval = ATH_SHORT_CALINTERVAL; -@@ -2623,6 +2625,10 @@ ath_init(struct net_device *dev) - goto done; - } - -+ ath_hal_process_noisefloor(ah); -+ ic->ic_channoise = ath_hal_get_channel_noise(ah, &(sc->sc_curchan)); -+ ath_update_cca_thresh(sc); -+ - if (sc->sc_softled) - ath_hal_gpioCfgOutput(ah, sc->sc_ledpin); - -@@ -3024,6 +3030,10 @@ ath_reset(struct net_device *dev) - EPRINTF(sc, "Unable to reset hardware: '%s' (HAL status %u)\n", - ath_get_hal_status_desc(status), status); - -+ ath_hal_process_noisefloor(ah); -+ ic->ic_channoise = ath_hal_get_channel_noise(ah, &(sc->sc_curchan)); -+ ath_update_cca_thresh(sc); -+ - ath_setintmit(sc); - ath_update_txpow(sc); /* update tx power state */ - ath_radar_update(sc); -@@ -9374,9 +9384,11 @@ ath_calibrate(unsigned long arg) - sc->sc_curchan.channel); - sc->sc_stats.ast_per_calfail++; - } -- ic->ic_channoise = ath_hal_get_channel_noise(ah, &(sc->sc_curchan)); - - ath_hal_process_noisefloor(ah); -+ ic->ic_channoise = ath_hal_get_channel_noise(ah, &(sc->sc_curchan)); -+ ath_update_cca_thresh(sc); -+ - if (isIQdone == AH_TRUE) { - /* Unless user has overridden calibration interval, - * upgrade to less frequent calibration */ -@@ -9711,8 +9723,6 @@ ath_newstate(struct ieee80211vap *vap, e - break; - } - -- ath_hal_process_noisefloor(ah); -- ic->ic_channoise = ath_hal_get_channel_noise(ah, &(sc->sc_curchan)); - /* - * Reset rssi stats; maybe not the best place... - */ -@@ -10968,6 +10978,7 @@ enum { - ATH_INTMIT, - ATH_NOISE_IMMUNITY, - ATH_OFDM_WEAK_DET, -+ ATH_CCA_THRESH, - ATH_CHANBW, - ATH_OUTDOOR, - ATH_DISTANCE, -@@ -11110,6 +11121,66 @@ ath_sysctl_get_intmit(struct ath_softc * - return 0; - } - -+#define AR_PHY_CCA 0x9864 -+#define AR_PHY_MINCCA_PWR 0x0FF80000 -+#define AR_PHY_MINCCA_PWR_S 19 -+#define AR_PHY_CCA_THRESH62 0x0007F000 -+#define AR_PHY_CCA_THRESH62_S 12 -+ -+static int -+ath_nf_from_cca(u32 phy_cca) -+{ -+ int nf = (phy_cca >> 19) & 0x1ff; -+ nf = -((nf ^ 0x1ff) + 1); -+ return nf; -+} -+ -+static int -+ath_hw_read_nf(struct ath_softc *sc) -+{ -+ return ath_nf_from_cca(OS_REG_READ(sc->sc_ah, AR_PHY_CCA)); -+} -+ -+static void -+ath_update_cca_thresh(struct ath_softc *sc) -+{ -+ struct ath_hal *ah = sc->sc_ah; -+ int newthr = 0; -+ u32 phy_cca; -+ int nf; -+ -+ phy_cca = OS_REG_READ(ah, AR_PHY_CCA); -+ if (sc->sc_cca_thresh < 0) { -+ newthr = sc->sc_cca_thresh - ath_nf_from_cca(phy_cca); -+ -+ /* 0xf is a typical eeprom value for thresh62, -+ * use it as minimum for signal based thresholds -+ * to prevent complete connection drops */ -+ if (newthr < 0xf) -+ newthr = 0xf; -+ } else { -+ newthr = sc->sc_cca_thresh; -+ } -+ -+ if ((newthr < 4) || (newthr >= 127)) -+ return; -+ -+ phy_cca &= ~AR_PHY_CCA_THRESH62; -+ phy_cca |= newthr << AR_PHY_CCA_THRESH62_S; -+ OS_REG_WRITE(ah, AR_PHY_CCA, phy_cca); -+} -+ -+static int -+ath_get_cca_thresh(struct ath_softc *sc) -+{ -+ struct ath_hal *ah = sc->sc_ah; -+ u32 phy_cca; -+ -+ phy_cca = OS_REG_READ(ah, AR_PHY_CCA); -+ return ath_nf_from_cca(phy_cca) + -+ ((phy_cca & AR_PHY_CCA_THRESH62) >> AR_PHY_CCA_THRESH62_S); -+} -+ - static int - ATH_SYSCTL_DECL(ath_sysctl_hwinfo, ctl, write, filp, buffer, lenp, ppos) - { -@@ -11356,6 +11427,10 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl - case ATH_OFDM_WEAK_DET: - ret = ath_sysctl_set_intmit(sc, (long)ctl->extra2, val); - break; -+ case ATH_CCA_THRESH: -+ sc->sc_cca_thresh = val; -+ ath_update_cca_thresh(sc); -+ break; - default: - ret = -EINVAL; - break; -@@ -11436,6 +11511,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl - case ATH_OFDM_WEAK_DET: - ret = ath_sysctl_get_intmit(sc, (long)ctl->extra2, &val); - break; -+ case ATH_CCA_THRESH: -+ val = ath_get_cca_thresh(sc); -+ break; - default: - ret = -EINVAL; - break; -@@ -11667,6 +11745,12 @@ static const ctl_table ath_sysctl_templa - .proc_handler = ath_sysctl_halparam, - .extra2 = (void *)ATH_OFDM_WEAK_DET, - }, -+ { .ctl_name = CTL_AUTO, -+ .procname = "cca_thresh", -+ .mode = 0644, -+ .proc_handler = ath_sysctl_halparam, -+ .extra2 = (void *)ATH_CCA_THRESH, -+ }, - { 0 } - }; - ---- a/ath/if_athvar.h -+++ b/ath/if_athvar.h -@@ -844,6 +844,7 @@ struct ath_softc { - int sc_cal_interval; /* current calibration interval */ - struct timer_list sc_cal_ch; /* calibration timer */ - HAL_NODE_STATS sc_halstats; /* station-mode rssi stats */ -+ int sc_cca_thresh; /* configured CCA threshold */ - - struct ctl_table_header *sc_sysctl_header; - struct ctl_table *sc_sysctls; ---- a/ath/ath_wprobe.c -+++ b/ath/ath_wprobe.c -@@ -133,8 +133,7 @@ ath_wprobe_sync(struct wprobe_iface *dev - rx = READ_CLR(ah, AR5K_RXFC); - tx = READ_CLR(ah, AR5K_TXFC); - OS_REG_WRITE(ah, AR5K_MIBC, 0); -- noise = ath_hal_get_channel_noise(sc->sc_ah, &(sc->sc_curchan)); -- ic->ic_channoise = noise; -+ noise = ath_hw_read_nf(sc); - - WPROBE_FILL_BEGIN(val, ath_wprobe_globals); - if (cc & 0xf0000000) { |