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ath9k_hw: Wait BT calibration to complete

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Whenever BT calibration requested, WLAN has to wait for the
calibration to be completed. But right now we defer the waiting
which might cause BT calibration to fail. Fix that.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2012-09-10 17:05:09 +05:30 • committed by John W. Linville
parent c1154431e3
commit 83ad49a96e
3 changed files with 19 additions and 2 deletions
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1
drivers/net/wireless/ath/ath9k/ar9003_mci.c
View file

@ -714,6 +714,7 @@ bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
return true;
}
EXPORT_SYMBOL(ar9003_mci_start_reset);
int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
struct ath9k_hw_cal_data *caldata)

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

@ -41,7 +41,6 @@ enum ath_reset_type {
RESET_TYPE_PLL_HANG,
RESET_TYPE_MAC_HANG,
RESET_TYPE_BEACON_STUCK,
RESET_TYPE_MCI,
__RESET_TYPE_MAX
};

19
drivers/net/wireless/ath/ath9k/mci.c
View file

@ -191,6 +191,23 @@ skip_tuning:
ath9k_btcoex_timer_resume(sc);
}
static void ath_mci_wait_btcal_done(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
/* Stop tx & rx */
ieee80211_stop_queues(sc->hw);
ath_stoprecv(sc);
ath_drain_all_txq(sc, false);
/* Wait for cal done */
ar9003_mci_start_reset(ah, ah->curchan);
/* Resume tx & rx */
ath_startrecv(sc);
ieee80211_wake_queues(sc->hw);
}
static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
{
struct ath_hw *ah = sc->sc_ah;
@ -202,7 +219,7 @@ static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
case MCI_GPM_BT_CAL_REQ:
if (mci_hw->bt_state == MCI_BT_AWAKE) {
mci_hw->bt_state = MCI_BT_CAL_START;
ath9k_queue_reset(sc, RESET_TYPE_MCI);
ath_mci_wait_btcal_done(sc);
}
ath_dbg(common, MCI, "MCI State : %d\n", mci_hw->bt_state);
break;