mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
71 lines
2.3 KiB
Diff
71 lines
2.3 KiB
Diff
From: Benjamin Berg <benjamin.berg@open-mesh.com>
|
|
Date: Mon, 4 Jul 2016 14:37:21 +0200
|
|
Subject: [PATCH] ath9k: Handle channel context in get_/set_/reset_tsf
|
|
|
|
The ath9k TSF handling routines need to be aware of the channel context that
|
|
is being modified. With this change the TSF related values that are stored
|
|
in each channel context will be correctly tracked and the harware will only
|
|
be updated if the modified context is currently the active one.
|
|
|
|
Without this change the TSF modifications done using these routines would
|
|
for example be lost during a hardware reset as done by ath_complete_reset.
|
|
|
|
Signed-off-by: Benjamin Berg <benjamin.berg@open-mesh.com>
|
|
---
|
|
|
|
--- a/drivers/net/wireless/ath/ath9k/main.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/main.c
|
|
@@ -1823,11 +1823,18 @@ static void ath9k_bss_info_changed(struc
|
|
static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
+ struct ath_vif *avp = (void *)vif->drv_priv;
|
|
u64 tsf;
|
|
|
|
mutex_lock(&sc->mutex);
|
|
ath9k_ps_wakeup(sc);
|
|
- tsf = ath9k_hw_gettsf64(sc->sc_ah);
|
|
+ /* Get current TSF either from HW or kernel time. */
|
|
+ if (sc->cur_chan == avp->chanctx) {
|
|
+ tsf = ath9k_hw_gettsf64(sc->sc_ah);
|
|
+ } else {
|
|
+ tsf = sc->cur_chan->tsf_val +
|
|
+ ath9k_hw_get_tsf_offset(&sc->cur_chan->tsf_ts, NULL);
|
|
+ }
|
|
ath9k_ps_restore(sc);
|
|
mutex_unlock(&sc->mutex);
|
|
|
|
@@ -1839,10 +1846,14 @@ static void ath9k_set_tsf(struct ieee802
|
|
u64 tsf)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
+ struct ath_vif *avp = (void *)vif->drv_priv;
|
|
|
|
mutex_lock(&sc->mutex);
|
|
ath9k_ps_wakeup(sc);
|
|
- ath9k_hw_settsf64(sc->sc_ah, tsf);
|
|
+ getrawmonotonic(&avp->chanctx->tsf_ts);
|
|
+ if (sc->cur_chan == avp->chanctx)
|
|
+ ath9k_hw_settsf64(sc->sc_ah, tsf);
|
|
+ avp->chanctx->tsf_val = tsf;
|
|
ath9k_ps_restore(sc);
|
|
mutex_unlock(&sc->mutex);
|
|
}
|
|
@@ -1850,11 +1861,15 @@ static void ath9k_set_tsf(struct ieee802
|
|
static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
|
|
{
|
|
struct ath_softc *sc = hw->priv;
|
|
+ struct ath_vif *avp = (void *)vif->drv_priv;
|
|
|
|
mutex_lock(&sc->mutex);
|
|
|
|
ath9k_ps_wakeup(sc);
|
|
- ath9k_hw_reset_tsf(sc->sc_ah);
|
|
+ getrawmonotonic(&avp->chanctx->tsf_ts);
|
|
+ if (sc->cur_chan == avp->chanctx)
|
|
+ ath9k_hw_reset_tsf(sc->sc_ah);
|
|
+ avp->chanctx->tsf_val = 0;
|
|
ath9k_ps_restore(sc);
|
|
|
|
mutex_unlock(&sc->mutex);
|