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path: root/drivers/net/wireless/ath/ath9k/beacon.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/beacon.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c109
1 files changed, 31 insertions, 78 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index b4a31a43a62c..f43d85a302c4 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -76,24 +76,13 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
ds = bf->bf_desc;
flags = ATH9K_TXDESC_NOACK;
- if (((sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) ||
- (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) &&
- (ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
- ds->ds_link = bf->bf_daddr; /* self-linked */
- flags |= ATH9K_TXDESC_VEOL;
- /* Let hardware handle antenna switching. */
- antenna = 0;
- } else {
- ds->ds_link = 0;
- /*
- * Switch antenna every beacon.
- * Should only switch every beacon period, not for every SWBA
- * XXX assumes two antennae
- */
- antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1);
- }
-
- ds->ds_data = bf->bf_buf_addr;
+ ds->ds_link = 0;
+ /*
+ * Switch antenna every beacon.
+ * Should only switch every beacon period, not for every SWBA
+ * XXX assumes two antennae
+ */
+ antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1);
sband = &sc->sbands[common->hw->conf.channel->band];
rate = sband->bitrates[rateidx].hw_value;
@@ -109,7 +98,8 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
/* NB: beacon's BufLen must be a multiple of 4 bytes */
ath9k_hw_filltxdesc(ah, ds, roundup(skb->len, 4),
- true, true, ds);
+ true, true, ds, bf->bf_buf_addr,
+ sc->beacon.beaconq);
memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
series[0].Tries = 1;
@@ -216,36 +206,6 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
return bf;
}
-/*
- * Startup beacon transmission for adhoc mode when they are sent entirely
- * by the hardware using the self-linked descriptor + veol trick.
-*/
-static void ath_beacon_start_adhoc(struct ath_softc *sc,
- struct ieee80211_vif *vif)
-{
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- struct ath_buf *bf;
- struct ath_vif *avp;
- struct sk_buff *skb;
-
- avp = (void *)vif->drv_priv;
-
- if (avp->av_bcbuf == NULL)
- return;
-
- bf = avp->av_bcbuf;
- skb = bf->bf_mpdu;
-
- ath_beacon_setup(sc, avp, bf, 0);
-
- /* NB: caller is known to have already stopped tx dma */
- ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bf->bf_daddr);
- ath9k_hw_txstart(ah, sc->beacon.beaconq);
- ath_print(common, ATH_DBG_BEACON, "TXDP%u = %llx (%p)\n",
- sc->beacon.beaconq, ito64(bf->bf_daddr), bf->bf_desc);
-}
-
int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
{
struct ath_softc *sc = aphy->sc;
@@ -266,7 +226,8 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
list_del(&avp->av_bcbuf->list);
if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
- !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
+ sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC ||
+ sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) {
int slot;
/*
* Assign the vif to a beacon xmit slot. As
@@ -275,17 +236,11 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif)
avp->av_bslot = 0;
for (slot = 0; slot < ATH_BCBUF; slot++)
if (sc->beacon.bslot[slot] == NULL) {
- /*
- * XXX hack, space out slots to better
- * deal with misses
- */
- if (slot+1 < ATH_BCBUF &&
- sc->beacon.bslot[slot+1] == NULL) {
- avp->av_bslot = slot+1;
- break;
- }
avp->av_bslot = slot;
+
/* NB: keep looking for a double slot */
+ if (slot == 0 || !sc->beacon.bslot[slot-1])
+ break;
}
BUG_ON(sc->beacon.bslot[avp->av_bslot] != NULL);
sc->beacon.bslot[avp->av_bslot] = vif;
@@ -524,6 +479,7 @@ static void ath9k_beacon_init(struct ath_softc *sc,
static void ath_beacon_config_ap(struct ath_softc *sc,
struct ath_beacon_config *conf)
{
+ struct ath_hw *ah = sc->sc_ah;
u32 nexttbtt, intval;
/* NB: the beacon interval is kept internally in TU's */
@@ -539,15 +495,15 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
* prepare beacon frames.
*/
intval |= ATH9K_BEACON_ENA;
- sc->imask |= ATH9K_INT_SWBA;
+ ah->imask |= ATH9K_INT_SWBA;
ath_beaconq_config(sc);
/* Set the computed AP beacon timers */
- ath9k_hw_set_interrupts(sc->sc_ah, 0);
+ ath9k_hw_set_interrupts(ah, 0);
ath9k_beacon_init(sc, nexttbtt, intval);
sc->beacon.bmisscnt = 0;
- ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
+ ath9k_hw_set_interrupts(ah, ah->imask);
/* Clear the reset TSF flag, so that subsequent beacon updation
will not reset the HW TSF. */
@@ -566,7 +522,8 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
static void ath_beacon_config_sta(struct ath_softc *sc,
struct ath_beacon_config *conf)
{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_beacon_state bs;
int dtimperiod, dtimcount, sleepduration;
int cfpperiod, cfpcount;
@@ -605,7 +562,7 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
* Pull nexttbtt forward to reflect the current
* TSF and calculate dtim+cfp state for the result.
*/
- tsf = ath9k_hw_gettsf64(sc->sc_ah);
+ tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
num_beacons = tsftu / intval + 1;
@@ -678,17 +635,18 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
/* Set the computed STA beacon timers */
- ath9k_hw_set_interrupts(sc->sc_ah, 0);
- ath9k_hw_set_sta_beacon_timers(sc->sc_ah, &bs);
- sc->imask |= ATH9K_INT_BMISS;
- ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
+ ath9k_hw_set_interrupts(ah, 0);
+ ath9k_hw_set_sta_beacon_timers(ah, &bs);
+ ah->imask |= ATH9K_INT_BMISS;
+ ath9k_hw_set_interrupts(ah, ah->imask);
}
static void ath_beacon_config_adhoc(struct ath_softc *sc,
struct ath_beacon_config *conf,
struct ieee80211_vif *vif)
{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
u64 tsf;
u32 tsftu, intval, nexttbtt;
@@ -703,7 +661,7 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
else if (intval)
nexttbtt = roundup(nexttbtt, intval);
- tsf = ath9k_hw_gettsf64(sc->sc_ah);
+ tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU((u32)(tsf>>32), (u32)tsf) + FUDGE;
do {
nexttbtt += intval;
@@ -719,21 +677,16 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
* self-linked tx descriptor and let the hardware deal with things.
*/
intval |= ATH9K_BEACON_ENA;
- if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL))
- sc->imask |= ATH9K_INT_SWBA;
+ ah->imask |= ATH9K_INT_SWBA;
ath_beaconq_config(sc);
/* Set the computed ADHOC beacon timers */
- ath9k_hw_set_interrupts(sc->sc_ah, 0);
+ ath9k_hw_set_interrupts(ah, 0);
ath9k_beacon_init(sc, nexttbtt, intval);
sc->beacon.bmisscnt = 0;
- ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
-
- /* FIXME: Handle properly when vif is NULL */
- if (vif && sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)
- ath_beacon_start_adhoc(sc, vif);
+ ath9k_hw_set_interrupts(ah, ah->imask);
}
void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-25 17:49:54 +0000