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ath9k: Avoid HW opmode overridden on monitor mode changes

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The HW opmode is blindly set to monitor type on monitor mode
change notification. This overrides the opmode when one of the
interfaces is still running as non-monitor iftype. So the monitoring
information needs to be maintained seperately.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2010-10-27 18:31:15 +05:30 committed by John W. Linville
parent 269e2d77b8
commit 5f841b4130
4 changed files with 23 additions and 8 deletions
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14
drivers/net/wireless/ath/ath9k/hw.c
View file

@ -952,9 +952,12 @@ static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
break;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_MONITOR:
REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
break;
default:
if (ah->is_monitoring)
REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
break;
}
}
@ -1634,7 +1637,6 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
switch (ah->opmode) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_MONITOR:
REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
@ -1663,6 +1665,14 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
break;
default:
if (ah->is_monitoring) {
REG_WRITE(ah, AR_NEXT_TBTT_TIMER,
TU_TO_USEC(next_beacon));
REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
flags |= AR_TBTT_TIMER_EN;
break;
}
ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
"%s: unsupported opmode: %d\n",
__func__, ah->opmode);

1
drivers/net/wireless/ath/ath9k/hw.h
View file

@ -622,6 +622,7 @@ struct ath_hw {
bool sw_mgmt_crypto;
bool is_pciexpress;
bool is_monitoring;
bool need_an_top2_fixup;
u16 tx_trig_level;

12
drivers/net/wireless/ath/ath9k/main.c
View file

@ -1217,6 +1217,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
ah->imask |= ATH9K_INT_CST;
sc->sc_flags &= ~SC_OP_INVALID;
sc->sc_ah->is_monitoring = false;
/* Disable BMISS interrupt when we're not associated */
ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);
@ -1493,8 +1494,7 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
ath9k_hw_set_interrupts(ah, ah->imask);
if (vif->type == NL80211_IFTYPE_AP ||
vif->type == NL80211_IFTYPE_ADHOC ||
vif->type == NL80211_IFTYPE_MONITOR) {
vif->type == NL80211_IFTYPE_ADHOC) {
sc->sc_flags |= SC_OP_ANI_RUN;
ath_start_ani(common);
}
@ -1644,8 +1644,12 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
if (conf->flags & IEEE80211_CONF_MONITOR) {
ath_print(common, ATH_DBG_CONFIG,
"HW opmode set to Monitor mode\n");
sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR;
"Monitor mode is enabled\n");
sc->sc_ah->is_monitoring = true;
} else {
ath_print(common, ATH_DBG_CONFIG,
"Monitor mode is disabled\n");
sc->sc_ah->is_monitoring = false;
}
}

4
drivers/net/wireless/ath/ath9k/recv.c
View file

@ -441,7 +441,7 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
*/
if (((sc->sc_ah->opmode != NL80211_IFTYPE_AP) &&
(sc->rx.rxfilter & FIF_PROMISC_IN_BSS)) ||
(sc->sc_ah->opmode == NL80211_IFTYPE_MONITOR))
(sc->sc_ah->is_monitoring))
rfilt |= ATH9K_RX_FILTER_PROM;
if (sc->rx.rxfilter & FIF_CONTROL)
@ -897,7 +897,7 @@ static bool ath9k_rx_accept(struct ath_common *common,
* decryption and MIC failures. For monitor mode,
* we also ignore the CRC error.
*/
if (ah->opmode == NL80211_IFTYPE_MONITOR) {
if (ah->is_monitoring) {
if (rx_stats->rs_status &
~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC |
ATH9K_RXERR_CRC))