mirror of https://github.com/hak5/openwrt-owl.git
60 lines
1.6 KiB
Diff
60 lines
1.6 KiB
Diff
--- a/ath/if_ath.c
|
|
+++ b/ath/if_ath.c
|
|
@@ -2785,6 +2785,44 @@
|
|
return 1;
|
|
}
|
|
|
|
+/* Fix up the ATIM window after TSF resync */
|
|
+static int
|
|
+ath_hw_check_atim(struct ath_softc *sc, int window)
|
|
+{
|
|
+#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;
|
|
+ unsigned int nbtt, atim;
|
|
+ int dev = ar_device(sc->devid);
|
|
+
|
|
+ switch(dev) {
|
|
+ case 5210:
|
|
+ nbtt = OS_REG_READ(ah, AR5K_TIMER0_5210);
|
|
+ atim = OS_REG_READ(ah, AR5K_TIMER3_5210);
|
|
+ if (atim - nbtt != window) {
|
|
+ OS_REG_WRITE(ah, AR5K_TIMER3_5210, nbtt + window );
|
|
+ return atim - nbtt;
|
|
+ }
|
|
+ break;
|
|
+ case 5211:
|
|
+ case 5212:
|
|
+ nbtt = OS_REG_READ(ah, AR5K_TIMER0_5211);
|
|
+ atim = OS_REG_READ(ah, AR5K_TIMER3_5211);
|
|
+ if (atim - nbtt != window) {
|
|
+ OS_REG_WRITE(ah, AR5K_TIMER3_5211, nbtt + window );
|
|
+ return atim - nbtt;
|
|
+ }
|
|
+ break;
|
|
+ /* NB: 5416+ doesn't do ATIM in hw */
|
|
+ default:
|
|
+ break;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
/*
|
|
* Reset the hardware w/o losing operational state. This is
|
|
* basically a more efficient way of doing ath_stop, ath_init,
|
|
@@ -6391,6 +6429,11 @@
|
|
DPRINTF(sc, ATH_DEBUG_BEACON,
|
|
"Updated beacon timers\n");
|
|
}
|
|
+ if ((sc->sc_opmode == IEEE80211_M_IBSS) &&
|
|
+ IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid) &&
|
|
+ ath_hw_check_atim(sc, 1)) {
|
|
+ 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 &&
|