mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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84 lines
2.9 KiB
Diff
84 lines
2.9 KiB
Diff
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Index: madwifi-ng-r2568-20070710/ath/if_ath.c
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===================================================================
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--- madwifi-ng-r2568-20070710.orig/ath/if_ath.c 2007-08-01 11:07:47.882943145 +0200
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+++ madwifi-ng-r2568-20070710/ath/if_ath.c 2007-08-01 11:41:11.781138794 +0200
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@@ -203,6 +203,7 @@
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static void ath_flushrecv(struct ath_softc *);
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static void ath_chan_change(struct ath_softc *, struct ieee80211_channel *);
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static void ath_calibrate(unsigned long);
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+static void ath_mib_enable(unsigned long);
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static int ath_newstate(struct ieee80211vap *, enum ieee80211_state, int);
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static void ath_scan_start(struct ieee80211com *);
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@@ -660,6 +661,10 @@
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sc->sc_cal_ch.function = ath_calibrate;
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sc->sc_cal_ch.data = (unsigned long) dev;
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+ init_timer(&sc->sc_mib_enable);
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+ sc->sc_mib_enable.function = ath_mib_enable;
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+ sc->sc_mib_enable.data = (unsigned long) sc;
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+
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#ifdef ATH_SUPERG_DYNTURBO
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init_timer(&sc->sc_dturbo_switch_mode);
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sc->sc_dturbo_switch_mode.function = ath_turbo_switch_mode;
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@@ -1751,16 +1756,19 @@
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if (status & HAL_INT_MIB) {
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sc->sc_stats.ast_mib++;
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/*
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- * Disable interrupts until we service the MIB
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- * interrupt; otherwise it will continue to fire.
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- */
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- ath_hal_intrset(ah, 0);
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- /*
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- * Let the HAL handle the event. We assume it will
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- * clear whatever condition caused the interrupt.
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+ * When the card receives lots of PHY errors, the MIB
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+ * interrupt will fire at a very rapid rate. We will use
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+ * a timer to enforce at least 1 jiffy delay between
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+ * MIB interrupts. This should be unproblematic, since
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+ * the hardware will continue to update the counters in the
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+ * mean time.
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*/
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- ath_hal_mibevent(ah, &sc->sc_halstats);
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+ sc->sc_imask &= ~HAL_INT_MIB;
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ath_hal_intrset(ah, sc->sc_imask);
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+ mod_timer(&sc->sc_mib_enable, jiffies + 1);
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+
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+ /* Let the HAL handle the event. */
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+ ath_hal_mibevent(ah, &sc->sc_halstats);
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}
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}
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if (needmark)
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@@ -8029,6 +8037,19 @@
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}
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/*
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+ * Enable MIB interrupts again, after the ISR disabled them
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+ * to slow down the rate of PHY error reporting.
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+ */
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+static void
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+ath_mib_enable(unsigned long arg)
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+{
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+ struct ath_softc *sc = (struct ath_softc *) arg;
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+
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+ sc->sc_imask |= HAL_INT_MIB;
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+ ath_hal_intrset(sc->sc_ah, sc->sc_imask);
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+}
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+
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+/*
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* Periodically recalibrate the PHY to account
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* for temperature/environment changes.
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*/
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Index: madwifi-ng-r2568-20070710/ath/if_athvar.h
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===================================================================
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--- madwifi-ng-r2568-20070710.orig/ath/if_athvar.h 2007-08-01 11:33:50.800008711 +0200
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+++ madwifi-ng-r2568-20070710/ath/if_athvar.h 2007-08-01 11:34:33.202425088 +0200
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@@ -687,6 +687,7 @@
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struct ctl_table *sc_sysctls;
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u_int16_t sc_reapcount; /* # of tx buffers reaped after net dev stopped */
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+ struct timer_list sc_mib_enable;
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#ifdef ATH_REVERSE_ENGINEERING
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u_int8_t register_snapshot[MAX_REGISTER_ADDRESS];
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