xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ath9k: Add channel context worker thread

Browse Source 
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>
This commit is contained in:
Felix Fietkau
2014-06-11 16:17:52 +05:30
committed by John W. Linville
parent 0453531e2e
commit bff1176698
8 changed files with 99 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
drivers/net/wireless/ath/ath9k/channel.c
View File

@@ -101,6 +101,39 @@ static int ath_set_channel(struct ath_softc *sc)
return 0;
}
void ath_chanctx_work(struct work_struct *work)
{
struct ath_softc *sc = container_of(work, struct ath_softc,
chanctx_work);
mutex_lock(&sc->mutex);
spin_lock_bh(&sc->chan_lock);
if (!sc->next_chan) {
spin_unlock_bh(&sc->chan_lock);
mutex_unlock(&sc->mutex);
return;
}
if (sc->cur_chan != sc->next_chan) {
sc->cur_chan->stopped = true;
spin_unlock_bh(&sc->chan_lock);
__ath9k_flush(sc->hw, ~0, true);
spin_lock_bh(&sc->chan_lock);
}
sc->cur_chan = sc->next_chan;
sc->cur_chan->stopped = false;
sc->next_chan = NULL;
spin_unlock_bh(&sc->chan_lock);
if (sc->sc_ah->chip_fullsleep ||
memcmp(&sc->cur_chandef, &sc->cur_chan->chandef,
sizeof(sc->cur_chandef)))
ath_set_channel(sc);
mutex_unlock(&sc->mutex);
}
void ath_chanctx_init(struct ath_softc *sc)
{
struct ath_chanctx *ctx;
@@ -125,12 +158,31 @@ void ath_chanctx_init(struct ath_softc *sc)
sc->cur_chan = &sc->chanctx[0];
}
int ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
struct cfg80211_chan_def *chandef)
void ath_chanctx_switch(struct ath_softc *sc, struct ath_chanctx *ctx,
struct cfg80211_chan_def *chandef)
{
memcpy(&ctx->chandef, chandef, sizeof(ctx->chandef));
if (ctx != sc->cur_chan)
return 0;
return ath_set_channel(sc);
spin_lock_bh(&sc->chan_lock);
sc->next_chan = ctx;
if (chandef)
ctx->chandef = *chandef;
spin_unlock_bh(&sc->chan_lock);
ieee80211_queue_work(sc->hw, &sc->chanctx_work);
}
void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
struct cfg80211_chan_def *chandef)
{
bool cur_chan;
spin_lock_bh(&sc->chan_lock);
if (chandef)
memcpy(&ctx->chandef, chandef, sizeof(*chandef));
cur_chan = sc->cur_chan == ctx;
spin_unlock_bh(&sc->chan_lock);
if (!cur_chan)
return;
ath_set_channel(sc);
}