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path: root/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_beacon.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_beacon.c170
1 files changed, 160 insertions, 10 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
index 87cc65a..8d1d879 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -123,8 +123,9 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
/* TSF out of range threshold fixed at 1 second */
bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
- ath_dbg(common, ATH_DBG_BEACON, "tsf: %llu tsftu: %u\n", tsf, tsftu);
- ath_dbg(common, ATH_DBG_BEACON,
+ ath_dbg(common, ATH_DBG_CONFIG, "intval: %u tsf: %llu tsftu: %u\n",
+ intval, tsf, tsftu);
+ ath_dbg(common, ATH_DBG_CONFIG,
"bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n",
bs.bs_bmissthreshold, bs.bs_sleepduration,
bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext);
@@ -138,25 +139,81 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}
+static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv,
+ struct htc_beacon_config *bss_conf)
+{
+ struct ath_common *common = ath9k_hw_common(priv->ah);
+ enum ath9k_int imask = 0;
+ u32 nexttbtt, intval, tsftu;
+ __be32 htc_imask = 0;
+ int ret;
+ u8 cmd_rsp;
+ u64 tsf;
+
+ intval = bss_conf->beacon_interval & ATH9K_BEACON_PERIOD;
+ intval /= ATH9K_HTC_MAX_BCN_VIF;
+ nexttbtt = intval;
+
+ if (priv->op_flags & OP_TSF_RESET) {
+ intval |= ATH9K_BEACON_RESET_TSF;
+ priv->op_flags &= ~OP_TSF_RESET;
+ } else {
+ /*
+ * Pull nexttbtt forward to reflect the current TSF.
+ */
+ tsf = ath9k_hw_gettsf64(priv->ah);
+ tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
+ do {
+ nexttbtt += intval;
+ } while (nexttbtt < tsftu);
+ }
+
+ intval |= ATH9K_BEACON_ENA;
+
+ if (priv->op_flags & OP_ENABLE_BEACON)
+ imask |= ATH9K_INT_SWBA;
+
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "AP Beacon config, intval: %d, nexttbtt: %u imask: 0x%x\n",
+ bss_conf->beacon_interval, nexttbtt, imask);
+
+ WMI_CMD(WMI_DISABLE_INTR_CMDID);
+ ath9k_hw_beaconinit(priv->ah, nexttbtt, intval);
+ priv->bmiss_cnt = 0;
+ htc_imask = cpu_to_be32(imask);
+ WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
+}
+
static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
struct htc_beacon_config *bss_conf)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
enum ath9k_int imask = 0;
- u32 nexttbtt, intval;
+ u32 nexttbtt, intval, tsftu;
__be32 htc_imask = 0;
int ret;
u8 cmd_rsp;
+ u64 tsf;
intval = bss_conf->beacon_interval & ATH9K_BEACON_PERIOD;
nexttbtt = intval;
+
+ /*
+ * Pull nexttbtt forward to reflect the current TSF.
+ */
+ tsf = ath9k_hw_gettsf64(priv->ah);
+ tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
+ do {
+ nexttbtt += intval;
+ } while (nexttbtt < tsftu);
+
intval |= ATH9K_BEACON_ENA;
if (priv->op_flags & OP_ENABLE_BEACON)
imask |= ATH9K_INT_SWBA;
- ath_dbg(common, ATH_DBG_BEACON,
- "IBSS Beacon config, intval: %d, imask: 0x%x\n",
- bss_conf->beacon_interval, imask);
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "IBSS Beacon config, intval: %d, nexttbtt: %u, imask: 0x%x\n",
+ bss_conf->beacon_interval, nexttbtt, imask);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
ath9k_hw_beaconinit(priv->ah, nexttbtt, intval);
@@ -207,9 +264,9 @@ void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending)
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *) beacon->data;
- priv->seq_no += 0x10;
+ avp->seq_no += 0x10;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
- hdr->seq_ctrl |= cpu_to_le16(priv->seq_no);
+ hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
}
tx_ctl.type = ATH9K_HTC_NORMAL;
@@ -253,30 +310,123 @@ void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
}
}
+static void ath9k_htc_beacon_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+ bool *beacon_configured = (bool *)data;
+ struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
+
+ if (vif->type == NL80211_IFTYPE_STATION &&
+ avp->beacon_configured)
+ *beacon_configured = true;
+}
+
+static bool ath9k_htc_check_beacon_config(struct ath9k_htc_priv *priv,
+ struct ieee80211_vif *vif)
+{
+ struct ath_common *common = ath9k_hw_common(priv->ah);
+ struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
+ struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+ bool beacon_configured;
+
+ /*
+ * Changing the beacon interval when multiple AP interfaces
+ * are configured will affect beacon transmission of all
+ * of them.
+ */
+ if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
+ (priv->num_ap_vif > 1) &&
+ (vif->type == NL80211_IFTYPE_AP) &&
+ (cur_conf->beacon_interval != bss_conf->beacon_int)) {
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "Changing beacon interval of multiple AP interfaces !\n");
+ return false;
+ }
+
+ /*
+ * If the HW is operating in AP mode, any new station interfaces that
+ * are added cannot change the beacon parameters.
+ */
+ if (priv->num_ap_vif &&
+ (vif->type != NL80211_IFTYPE_AP)) {
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "HW in AP mode, cannot set STA beacon parameters\n");
+ return false;
+ }
+
+ /*
+ * The beacon parameters are configured only for the first
+ * station interface.
+ */
+ if ((priv->ah->opmode == NL80211_IFTYPE_STATION) &&
+ (priv->num_sta_vif > 1) &&
+ (vif->type == NL80211_IFTYPE_STATION)) {
+ beacon_configured = false;
+ ieee80211_iterate_active_interfaces_atomic(priv->hw,
+ ath9k_htc_beacon_iter,
+ &beacon_configured);
+
+ if (beacon_configured) {
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "Beacon already configured for a station interface\n");
+ return false;
+ }
+ }
+
+ return true;
+}
+
void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+ struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
+
+ if (!ath9k_htc_check_beacon_config(priv, vif))
+ return;
cur_conf->beacon_interval = bss_conf->beacon_int;
if (cur_conf->beacon_interval == 0)
cur_conf->beacon_interval = 100;
cur_conf->dtim_period = bss_conf->dtim_period;
- cur_conf->listen_interval = 1;
- cur_conf->dtim_count = 1;
cur_conf->bmiss_timeout =
ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
switch (vif->type) {
case NL80211_IFTYPE_STATION:
ath9k_htc_beacon_config_sta(priv, cur_conf);
+ avp->beacon_configured = true;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ath9k_htc_beacon_config_adhoc(priv, cur_conf);
+ break;
+ case NL80211_IFTYPE_AP:
+ ath9k_htc_beacon_config_ap(priv, cur_conf);
+ break;
+ default:
+ ath_dbg(common, ATH_DBG_CONFIG,
+ "Unsupported beaconing mode\n");
+ return;
+ }
+}
+
+void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
+{
+ struct ath_common *common = ath9k_hw_common(priv->ah);
+ struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
+
+ switch (priv->ah->opmode) {
+ case NL80211_IFTYPE_STATION:
+ ath9k_htc_beacon_config_sta(priv, cur_conf);
break;
case NL80211_IFTYPE_ADHOC:
ath9k_htc_beacon_config_adhoc(priv, cur_conf);
break;
+ case NL80211_IFTYPE_AP:
+ ath9k_htc_beacon_config_ap(priv, cur_conf);
+ break;
default:
ath_dbg(common, ATH_DBG_CONFIG,
"Unsupported beaconing mode\n");
generated by cgit v1.1 at 2024-05-17 04:58:35 +0000