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-rw-r--r--package/madwifi/patches/375-atim_tsf_update.patch141
1 files changed, 0 insertions, 141 deletions
diff --git a/package/madwifi/patches/375-atim_tsf_update.patch b/package/madwifi/patches/375-atim_tsf_update.patch
deleted file mode 100644
index d1313aa56..000000000
--- a/package/madwifi/patches/375-atim_tsf_update.patch
+++ /dev/null
@@ -1,141 +0,0 @@
---- a/ath/if_ath.c
-+++ b/ath/if_ath.c
-@@ -161,6 +161,7 @@ static void ath_beacon_send(struct ath_s
- static void ath_beacon_return(struct ath_softc *, struct ath_buf *);
- static void ath_beacon_free(struct ath_softc *);
- static void ath_beacon_config(struct ath_softc *, struct ieee80211vap *);
-+static void ath_hw_beacon_stop(struct ath_softc *sc);
- static int ath_desc_alloc(struct ath_softc *);
- static void ath_desc_free(struct ath_softc *);
- static void ath_desc_swap(struct ath_desc *);
-@@ -2793,6 +2794,72 @@ ath_set_ack_bitrate(struct ath_softc *sc
- return 1;
- }
-
-+static void
-+ath_hw_beacon_stop(struct ath_softc *sc)
-+{
-+ HAL_BEACON_TIMERS btimers;
-+
-+ btimers.bt_intval = 0;
-+ btimers.bt_nexttbtt = 0;
-+ btimers.bt_nextdba = 0xffffffff;
-+ btimers.bt_nextswba = 0xffffffff;
-+ btimers.bt_nextatim = 0;
-+
-+ ath_hal_setbeacontimers(sc->sc_ah, &btimers);
-+}
-+
-+/* Fix up the ATIM window after TSF resync */
-+static int
-+ath_hw_check_atim(struct ath_softc *sc, int window, int intval)
-+{
-+#define AR5K_TIMER0_5210 0x802c /* Next beacon time register */
-+#define AR5K_TIMER0_5211 0x8028
-+#define AR5K_TIMER3_5210 0x8038 /* End of ATIM window time register */
-+#define AR5K_TIMER3_5211 0x8034
-+ struct ath_hal *ah = sc->sc_ah;
-+ int dev = sc->sc_ah->ah_macType;
-+ unsigned int nbtt, atim;
-+ int is_5210 = 0;
-+
-+ /*
-+ * check if the ATIM window is still correct:
-+ * 1.) usually ATIM should be NBTT + window
-+ * 2.) nbtt already updated
-+ * 3.) nbtt already updated and has wrapped around
-+ * 4.) atim has wrapped around
-+ */
-+ switch(dev) {
-+ case 5210:
-+ nbtt = OS_REG_READ(ah, AR5K_TIMER0_5210);
-+ atim = OS_REG_READ(ah, AR5K_TIMER3_5210);
-+ is_5210 = 1;
-+ break;
-+ case 5211:
-+ case 5212:
-+ nbtt = OS_REG_READ(ah, AR5K_TIMER0_5211);
-+ atim = OS_REG_READ(ah, AR5K_TIMER3_5211);
-+ break;
-+ /* NB: 5416+ doesn't do ATIM in hw */
-+ case 5416:
-+ default:
-+ return 0;
-+ }
-+
-+ if ((atim - nbtt != window) && /* 1.) */
-+ (nbtt - atim != intval - window) && /* 2.) */
-+ ((nbtt | 0x10000) - atim != intval - window) && /* 3.) */
-+ ((atim | 0x10000) - nbtt != window)) { /* 4.) */
-+ if (is_5210)
-+ OS_REG_WRITE(ah, AR5K_TIMER3_5210, nbtt + window );
-+ else
-+ OS_REG_WRITE(ah, AR5K_TIMER3_5211, nbtt + window );
-+ return atim - nbtt;
-+ }
-+
-+ return 0;
-+}
-+
-+
- /*
- * Reset the hardware w/o losing operational state. This is
- * basically a more efficient way of doing ath_stop, ath_init,
-@@ -5294,6 +5361,7 @@ ath_beacon_config(struct ath_softc *sc,
- u_int64_t tsf, hw_tsf;
- u_int32_t tsftu, hw_tsftu;
- u_int32_t intval, nexttbtt = 0;
-+ unsigned long flags;
- int reset_tsf = 0;
-
- if (vap == NULL)
-@@ -5301,6 +5369,9 @@ ath_beacon_config(struct ath_softc *sc,
-
- ni = vap->iv_bss;
-
-+ /* TSF calculation is timing critical - we don't want to be interrupted here */
-+ local_irq_save(flags);
-+
- hw_tsf = ath_hal_gettsf64(ah);
- tsf = le64_to_cpu(ni->ni_tstamp.tsf);
- hw_tsftu = hw_tsf >> 10;
-@@ -5490,15 +5561,27 @@ ath_beacon_config(struct ath_softc *sc,
- <= ath_hal_sw_beacon_response_time)
- nexttbtt += intval;
- sc->sc_nexttbtt = nexttbtt;
-+
-+ /* stop beacons before reconfiguring the timers to avoid race
-+ * conditions. ath_hal_beaconinit will start them again */
-+ ath_hw_beacon_stop(sc);
-+
- ath_hal_beaconinit(ah, nexttbtt, intval);
- if (intval & HAL_BEACON_RESET_TSF) {
- sc->sc_last_tsf = 0;
- }
- sc->sc_bmisscount = 0;
- ath_hal_intrset(ah, sc->sc_imask);
-+
-+ if ((sc->sc_opmode == HAL_M_IBSS) && ath_hw_check_atim(sc, 1, intval & HAL_BEACON_PERIOD)) {
-+ DPRINTF(sc, ATH_DEBUG_BEACON,
-+ "fixed atim window after beacon init\n");
-+ }
- }
-
- ath_beacon_config_debug:
-+ local_irq_restore(flags);
-+
- /* We print all debug messages here, in order to preserve the
- * time critical aspect of this function */
- DPRINTF(sc, ATH_DEBUG_BEACON,
-@@ -6401,6 +6484,11 @@ 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");
-+ }
- /* NB: Fall Through */
- case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
- if (vap->iv_opmode == IEEE80211_M_IBSS &&