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path: root/drivers/net/wireless/ath/ath9k/beacon.c
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-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c97
1 files changed, 84 insertions, 13 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index e387f0b2954a..eaf8f058c151 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -80,7 +80,7 @@ static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif,
u8 chainmask = ah->txchainmask;
u8 rate = 0;
- sband = &common->sbands[common->hw->conf.chandef.chan->band];
+ sband = &common->sbands[sc->cur_chandef.chan->band];
rate = sband->bitrates[rateidx].hw_value;
if (vif->bss_conf.use_short_preamble)
rate |= sband->bitrates[rateidx].hw_value_short;
@@ -108,6 +108,55 @@ static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif,
ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
}
+static void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
+ struct sk_buff *skb)
+{
+ static const u8 noa_ie_hdr[] = {
+ WLAN_EID_VENDOR_SPECIFIC, /* type */
+ 0, /* length */
+ 0x50, 0x6f, 0x9a, /* WFA OUI */
+ 0x09, /* P2P subtype */
+ 0x0c, /* Notice of Absence */
+ 0x00, /* LSB of little-endian len */
+ 0x00, /* MSB of little-endian len */
+ };
+
+ struct ieee80211_p2p_noa_attr *noa;
+ int noa_len, noa_desc, i = 0;
+ u8 *hdr;
+
+ if (!avp->offchannel_duration && !avp->periodic_noa_duration)
+ return;
+
+ noa_desc = !!avp->offchannel_duration + !!avp->periodic_noa_duration;
+ noa_len = 2 + sizeof(struct ieee80211_p2p_noa_desc) * noa_desc;
+
+ hdr = skb_put(skb, sizeof(noa_ie_hdr));
+ memcpy(hdr, noa_ie_hdr, sizeof(noa_ie_hdr));
+ hdr[1] = sizeof(noa_ie_hdr) + noa_len - 2;
+ hdr[7] = noa_len;
+
+ noa = (void *) skb_put(skb, noa_len);
+ memset(noa, 0, noa_len);
+
+ noa->index = avp->noa_index;
+ if (avp->periodic_noa_duration) {
+ u32 interval = TU_TO_USEC(sc->cur_chan->beacon.beacon_interval);
+
+ noa->desc[i].count = 255;
+ noa->desc[i].start_time = cpu_to_le32(avp->periodic_noa_start);
+ noa->desc[i].duration = cpu_to_le32(avp->periodic_noa_duration);
+ noa->desc[i].interval = cpu_to_le32(interval);
+ i++;
+ }
+
+ if (avp->offchannel_duration) {
+ noa->desc[i].count = 1;
+ noa->desc[i].start_time = cpu_to_le32(avp->offchannel_start);
+ noa->desc[i].duration = cpu_to_le32(avp->offchannel_duration);
+ }
+}
+
static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -155,6 +204,9 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
}
+ if (vif->p2p)
+ ath9k_beacon_add_noa(sc, avp, skb);
+
bf->bf_buf_addr = dma_map_single(sc->dev, skb->data,
skb->len, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(sc->dev, bf->bf_buf_addr))) {
@@ -249,7 +301,7 @@ void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif)
static int ath9k_beacon_choose_slot(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
+ struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
u16 intval;
u32 tsftu;
u64 tsf;
@@ -277,8 +329,8 @@ static int ath9k_beacon_choose_slot(struct ath_softc *sc)
static void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
struct ath_vif *avp = (void *)vif->drv_priv;
+ struct ath_beacon_config *cur_conf = &avp->chanctx->beacon;
u32 tsfadjust;
if (avp->av_bslot == 0)
@@ -374,12 +426,19 @@ void ath9k_beacon_tasklet(unsigned long data)
vif = sc->beacon.bslot[slot];
/* EDMA devices check that in the tx completion function. */
- if (!edma && ath9k_csa_is_finished(sc, vif))
- return;
+ if (!edma) {
+ if (sc->sched.beacon_pending)
+ ath_chanctx_event(sc, NULL,
+ ATH_CHANCTX_EVENT_BEACON_SENT);
+
+ if (ath9k_csa_is_finished(sc, vif))
+ return;
+ }
if (!vif || !vif->bss_conf.enable_beacon)
return;
+ ath_chanctx_event(sc, vif, ATH_CHANCTX_EVENT_BEACON_PREPARE);
bf = ath9k_beacon_generate(sc->hw, vif);
if (sc->beacon.bmisscnt != 0) {
@@ -500,7 +559,6 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_vif *avp = (void *)vif->drv_priv;
if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
if ((vif->type != NL80211_IFTYPE_AP) ||
@@ -514,7 +572,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
if ((vif->type == NL80211_IFTYPE_STATION) &&
test_bit(ATH_OP_BEACONS, &common->op_flags) &&
- !avp->primary_sta_vif) {
+ vif != sc->cur_chan->primary_sta) {
ath_dbg(common, CONFIG,
"Beacon already configured for a station interface\n");
return false;
@@ -525,10 +583,11 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
}
static void ath9k_cache_beacon_config(struct ath_softc *sc,
+ struct ath_chanctx *ctx,
struct ieee80211_bss_conf *bss_conf)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
+ struct ath_beacon_config *cur_conf = &ctx->beacon;
ath_dbg(common, BEACON,
"Caching beacon data for BSS: %pM\n", bss_conf->bssid);
@@ -564,20 +623,29 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
u32 changed)
{
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
- struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
+ struct ath_vif *avp = (void *)vif->drv_priv;
+ struct ath_chanctx *ctx = avp->chanctx;
+ struct ath_beacon_config *cur_conf;
unsigned long flags;
bool skip_beacon = false;
+ if (!ctx)
+ return;
+
+ cur_conf = &avp->chanctx->beacon;
if (vif->type == NL80211_IFTYPE_AP)
ath9k_set_tsfadjust(sc, vif);
if (!ath9k_allow_beacon_config(sc, vif))
return;
- if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) {
- ath9k_cache_beacon_config(sc, bss_conf);
+ if (vif->type == NL80211_IFTYPE_STATION) {
+ ath9k_cache_beacon_config(sc, ctx, bss_conf);
+ if (ctx != sc->cur_chan)
+ return;
+
ath9k_set_beacon(sc);
set_bit(ATH_OP_BEACONS, &common->op_flags);
return;
@@ -593,10 +661,13 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
cur_conf->enable_beacon = false;
} else if (bss_conf->enable_beacon) {
cur_conf->enable_beacon = true;
- ath9k_cache_beacon_config(sc, bss_conf);
+ ath9k_cache_beacon_config(sc, ctx, bss_conf);
}
}
+ if (ctx != sc->cur_chan)
+ return;
+
/*
* Configure the HW beacon registers only when we have a valid
* beacon interval.
@@ -631,7 +702,7 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
void ath9k_set_beacon(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
+ struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
switch (sc->sc_ah->opmode) {
case NL80211_IFTYPE_AP:
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.