mirror of https://github.com/hak5/openwrt.git
187 lines
5.2 KiB
Diff
187 lines
5.2 KiB
Diff
--- 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) {
|