ath9k: Add channel context worker thread
The channel context worker is used to switch to next requested
channel context.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 5f7e0bf..bb73a23 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -290,6 +290,12 @@
if (!ath_prepare_reset(sc))
fastcc = false;
+ if (hchan) {
+ spin_lock_bh(&sc->chan_lock);
+ sc->cur_chandef = sc->cur_chan->chandef;
+ spin_unlock_bh(&sc->chan_lock);
+ }
+
ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n",
hchan->channel, IS_CHAN_HT40(hchan), fastcc);
@@ -630,8 +636,8 @@
ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
- memcpy(&ctx->chandef, &hw->conf.chandef, sizeof(ctx->chandef));
init_channel = ath9k_cmn_get_channel(hw, ah, &ctx->chandef);
+ sc->cur_chandef = hw->conf.chandef;
/* Reset SERDES registers */
ath9k_hw_configpcipowersave(ah, false);
@@ -794,6 +800,7 @@
struct ath_common *common = ath9k_hw_common(ah);
bool prev_idle;
+ cancel_work_sync(&sc->chanctx_work);
mutex_lock(&sc->mutex);
ath_cancel_work(sc);
@@ -1308,12 +1315,7 @@
if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
ctx->offchannel = !!(conf->flags & IEEE80211_CONF_OFFCHANNEL);
- if (ath_chanctx_set_channel(sc, ctx, &hw->conf.chandef) < 0) {
- ath_err(common, "Unable to set channel\n");
- mutex_unlock(&sc->mutex);
- ath9k_ps_restore(sc);
- return -EINVAL;
- }
+ ath_chanctx_set_channel(sc, ctx, &hw->conf.chandef);
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
@@ -1948,23 +1950,29 @@
u32 queues, bool drop)
{
struct ath_softc *sc = hw->priv;
+
+ mutex_lock(&sc->mutex);
+ __ath9k_flush(hw, queues, drop);
+ mutex_unlock(&sc->mutex);
+}
+
+void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
+{
+ struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
int timeout = HZ / 5; /* 200 ms */
bool drain_txq;
- mutex_lock(&sc->mutex);
cancel_delayed_work_sync(&sc->tx_complete_work);
if (ah->ah_flags & AH_UNPLUGGED) {
ath_dbg(common, ANY, "Device has been unplugged!\n");
- mutex_unlock(&sc->mutex);
return;
}
if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
ath_dbg(common, ANY, "Device not present\n");
- mutex_unlock(&sc->mutex);
return;
}
@@ -1986,7 +1994,6 @@
}
ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
- mutex_unlock(&sc->mutex);
}
static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)