aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_beacon.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_beacon.c260
1 files changed, 59 insertions, 201 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
index 8b5757734596..e8b6ec3c1dbb 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -26,7 +26,7 @@ void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
memset(&qi_be, 0, sizeof(struct ath9k_tx_queue_info));
- ath9k_hw_get_txq_props(ah, priv->beaconq, &qi);
+ ath9k_hw_get_txq_props(ah, priv->beacon.beaconq, &qi);
if (priv->ah->opmode == NL80211_IFTYPE_AP ||
priv->ah->opmode == NL80211_IFTYPE_MESH_POINT) {
@@ -54,220 +54,78 @@ void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
}
- if (!ath9k_hw_set_txq_props(ah, priv->beaconq, &qi)) {
+ if (!ath9k_hw_set_txq_props(ah, priv->beacon.beaconq, &qi)) {
ath_err(ath9k_hw_common(ah),
- "Unable to update beacon queue %u!\n", priv->beaconq);
+ "Unable to update beacon queue %u!\n", priv->beacon.beaconq);
} else {
- ath9k_hw_resettxqueue(ah, priv->beaconq);
+ ath9k_hw_resettxqueue(ah, priv->beacon.beaconq);
}
}
-
-static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
- struct htc_beacon_config *bss_conf)
+/*
+ * Both nexttbtt and intval have to be in usecs.
+ */
+static void ath9k_htc_beacon_init(struct ath9k_htc_priv *priv,
+ struct ath_beacon_config *conf,
+ bool reset_tsf)
{
- struct ath_common *common = ath9k_hw_common(priv->ah);
- struct ath9k_beacon_state bs;
- enum ath9k_int imask = 0;
- int dtimperiod, dtimcount, sleepduration;
- int bmiss_timeout;
- u32 nexttbtt = 0, intval, tsftu;
- __be32 htc_imask = 0;
- u64 tsf;
- int num_beacons, offset, dtim_dec_count;
+ struct ath_hw *ah = priv->ah;
int ret __attribute__ ((unused));
+ __be32 htc_imask = 0;
u8 cmd_rsp;
- memset(&bs, 0, sizeof(bs));
-
- intval = bss_conf->beacon_interval;
- bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_interval);
-
- /*
- * Setup dtim parameters according to
- * last beacon we received (which may be none).
- */
- dtimperiod = bss_conf->dtim_period;
- if (dtimperiod <= 0) /* NB: 0 if not known */
- dtimperiod = 1;
- dtimcount = 1;
- if (dtimcount >= dtimperiod) /* NB: sanity check */
- dtimcount = 0;
-
- sleepduration = intval;
- if (sleepduration <= 0)
- sleepduration = intval;
-
- /*
- * Pull nexttbtt forward to reflect the current
- * TSF and calculate dtim state for the result.
- */
- tsf = ath9k_hw_gettsf64(priv->ah);
- tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
-
- num_beacons = tsftu / intval + 1;
- offset = tsftu % intval;
- nexttbtt = tsftu - offset;
- if (offset)
- nexttbtt += intval;
-
- /* DTIM Beacon every dtimperiod Beacon */
- dtim_dec_count = num_beacons % dtimperiod;
- dtimcount -= dtim_dec_count;
- if (dtimcount < 0)
- dtimcount += dtimperiod;
-
- bs.bs_intval = TU_TO_USEC(intval);
- bs.bs_nexttbtt = TU_TO_USEC(nexttbtt);
- bs.bs_dtimperiod = dtimperiod * bs.bs_intval;
- bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount * bs.bs_intval;
-
- /*
- * Calculate the number of consecutive beacons to miss* before taking
- * a BMISS interrupt. The configuration is specified in TU so we only
- * need calculate based on the beacon interval. Note that we clamp the
- * result to at most 15 beacons.
- */
- if (sleepduration > intval) {
- bs.bs_bmissthreshold = ATH_DEFAULT_BMISS_LIMIT / 2;
- } else {
- bs.bs_bmissthreshold = DIV_ROUND_UP(bmiss_timeout, intval);
- if (bs.bs_bmissthreshold > 15)
- bs.bs_bmissthreshold = 15;
- else if (bs.bs_bmissthreshold <= 0)
- bs.bs_bmissthreshold = 1;
- }
-
- /*
- * Calculate sleep duration. The configuration is given in ms.
- * We ensure a multiple of the beacon period is used. Also, if the sleep
- * duration is greater than the DTIM period then it makes senses
- * to make it a multiple of that.
- *
- * XXX fixed at 100ms
- */
-
- bs.bs_sleepduration = TU_TO_USEC(roundup(IEEE80211_MS_TO_TU(100),
- sleepduration));
- if (bs.bs_sleepduration > bs.bs_dtimperiod)
- bs.bs_sleepduration = bs.bs_dtimperiod;
-
- /* TSF out of range threshold fixed at 1 second */
- bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
-
- ath_dbg(common, CONFIG, "intval: %u tsf: %llu tsftu: %u\n",
- intval, tsf, tsftu);
- ath_dbg(common, CONFIG, "bmiss: %u sleep: %u\n",
- bs.bs_bmissthreshold, bs.bs_sleepduration);
-
- /* Set the computed STA beacon timers */
+ if (conf->intval >= TU_TO_USEC(DEFAULT_SWBA_RESPONSE))
+ ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
+ else
+ ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;
WMI_CMD(WMI_DISABLE_INTR_CMDID);
- ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
- imask |= ATH9K_INT_BMISS;
- htc_imask = cpu_to_be32(imask);
+ if (reset_tsf)
+ ath9k_hw_reset_tsf(ah);
+ ath9k_htc_beaconq_config(priv);
+ ath9k_hw_beaconinit(ah, conf->nexttbtt, conf->intval);
+ priv->beacon.bmisscnt = 0;
+ htc_imask = cpu_to_be32(ah->imask);
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)
+static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
+ struct ath_beacon_config *bss_conf)
{
- struct ath_common *common = ath9k_hw_common(priv->ah);
+ struct ath9k_beacon_state bs;
enum ath9k_int imask = 0;
- u32 nexttbtt, intval, tsftu;
__be32 htc_imask = 0;
int ret __attribute__ ((unused));
u8 cmd_rsp;
- u64 tsf;
- intval = bss_conf->beacon_interval;
- intval /= ATH9K_HTC_MAX_BCN_VIF;
- nexttbtt = intval;
-
- /*
- * To reduce beacon misses under heavy TX load,
- * set the beacon response time to a larger value.
- */
- if (intval > DEFAULT_SWBA_RESPONSE)
- priv->ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
- else
- priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;
-
- if (test_bit(OP_TSF_RESET, &priv->op_flags)) {
- ath9k_hw_reset_tsf(priv->ah);
- clear_bit(OP_TSF_RESET, &priv->op_flags);
- } 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);
- }
-
- if (test_bit(OP_ENABLE_BEACON, &priv->op_flags))
- imask |= ATH9K_INT_SWBA;
-
- ath_dbg(common, CONFIG,
- "AP Beacon config, intval: %d, nexttbtt: %u, resp_time: %d imask: 0x%x\n",
- bss_conf->beacon_interval, nexttbtt,
- priv->ah->config.sw_beacon_response_time, imask);
-
- ath9k_htc_beaconq_config(priv);
+ if (ath9k_cmn_beacon_config_sta(priv->ah, bss_conf, &bs) == -EPERM)
+ return;
WMI_CMD(WMI_DISABLE_INTR_CMDID);
- ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
- priv->cur_beacon_conf.bmiss_cnt = 0;
+ ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
+ imask |= ATH9K_INT_BMISS;
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)
+static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv,
+ struct ath_beacon_config *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 __attribute__ ((unused));
- u8 cmd_rsp;
- u64 tsf;
-
- intval = bss_conf->beacon_interval;
- 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);
-
- /*
- * Only one IBSS interfce is allowed.
- */
- if (intval > DEFAULT_SWBA_RESPONSE)
- priv->ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
- else
- priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;
+ struct ath_hw *ah = priv->ah;
+ ah->imask = 0;
- if (test_bit(OP_ENABLE_BEACON, &priv->op_flags))
- imask |= ATH9K_INT_SWBA;
+ ath9k_cmn_beacon_config_ap(ah, conf, ATH9K_HTC_MAX_BCN_VIF);
+ ath9k_htc_beacon_init(priv, conf, false);
+}
- ath_dbg(common, CONFIG,
- "IBSS Beacon config, intval: %d, nexttbtt: %u, resp_time: %d, imask: 0x%x\n",
- bss_conf->beacon_interval, nexttbtt,
- priv->ah->config.sw_beacon_response_time, imask);
+static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
+ struct ath_beacon_config *conf)
+{
+ struct ath_hw *ah = priv->ah;
+ ah->imask = 0;
- WMI_CMD(WMI_DISABLE_INTR_CMDID);
- ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
- priv->cur_beacon_conf.bmiss_cnt = 0;
- htc_imask = cpu_to_be32(imask);
- WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
+ ath9k_cmn_beacon_config_adhoc(ah, conf);
+ ath9k_htc_beacon_init(priv, conf, conf->ibss_creator);
}
void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
@@ -287,7 +145,7 @@ static void ath9k_htc_send_buffered(struct ath9k_htc_priv *priv,
spin_lock_bh(&priv->beacon_lock);
- vif = priv->cur_beacon_conf.bslot[slot];
+ vif = priv->beacon.bslot[slot];
skb = ieee80211_get_buffered_bc(priv->hw, vif);
@@ -348,10 +206,10 @@ static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
spin_lock_bh(&priv->beacon_lock);
- vif = priv->cur_beacon_conf.bslot[slot];
+ vif = priv->beacon.bslot[slot];
avp = (struct ath9k_htc_vif *)vif->drv_priv;
- if (unlikely(test_bit(OP_SCANNING, &priv->op_flags))) {
+ if (unlikely(test_bit(ATH_OP_SCANNING, &common->op_flags))) {
spin_unlock_bh(&priv->beacon_lock);
return;
}
@@ -431,8 +289,8 @@ void ath9k_htc_swba(struct ath9k_htc_priv *priv,
int slot;
if (swba->beacon_pending != 0) {
- priv->cur_beacon_conf.bmiss_cnt++;
- if (priv->cur_beacon_conf.bmiss_cnt > BSTUCK_THRESHOLD) {
+ priv->beacon.bmisscnt++;
+ if (priv->beacon.bmisscnt > BSTUCK_THRESHOLD) {
ath_dbg(common, BSTUCK, "Beacon stuck, HW reset\n");
ieee80211_queue_work(priv->hw,
&priv->fatal_work);
@@ -440,16 +298,16 @@ void ath9k_htc_swba(struct ath9k_htc_priv *priv,
return;
}
- if (priv->cur_beacon_conf.bmiss_cnt) {
+ if (priv->beacon.bmisscnt) {
ath_dbg(common, BSTUCK,
"Resuming beacon xmit after %u misses\n",
- priv->cur_beacon_conf.bmiss_cnt);
- priv->cur_beacon_conf.bmiss_cnt = 0;
+ priv->beacon.bmisscnt);
+ priv->beacon.bmisscnt = 0;
}
slot = ath9k_htc_choose_bslot(priv, swba);
spin_lock_bh(&priv->beacon_lock);
- if (priv->cur_beacon_conf.bslot[slot] == NULL) {
+ if (priv->beacon.bslot[slot] == NULL) {
spin_unlock_bh(&priv->beacon_lock);
return;
}
@@ -468,13 +326,13 @@ void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
spin_lock_bh(&priv->beacon_lock);
for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) {
- if (priv->cur_beacon_conf.bslot[i] == NULL) {
+ if (priv->beacon.bslot[i] == NULL) {
avp->bslot = i;
break;
}
}
- priv->cur_beacon_conf.bslot[avp->bslot] = vif;
+ priv->beacon.bslot[avp->bslot] = vif;
spin_unlock_bh(&priv->beacon_lock);
ath_dbg(common, CONFIG, "Added interface at beacon slot: %d\n",
@@ -488,7 +346,7 @@ void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
spin_lock_bh(&priv->beacon_lock);
- priv->cur_beacon_conf.bslot[avp->bslot] = NULL;
+ priv->beacon.bslot[avp->bslot] = NULL;
spin_unlock_bh(&priv->beacon_lock);
ath_dbg(common, CONFIG, "Removed interface at beacon slot: %d\n",
@@ -504,7 +362,7 @@ void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
- struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
+ struct ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
u64 tsfadjust;
if (avp->bslot == 0)
@@ -536,7 +394,7 @@ 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 ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
bool beacon_configured;
@@ -591,7 +449,7 @@ 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 ath_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;
@@ -627,7 +485,7 @@ void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
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;
+ struct ath_beacon_config *cur_conf = &priv->cur_beacon_conf;
switch (priv->ah->opmode) {
case NL80211_IFTYPE_STATION:
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.