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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.c152
1 files changed, 66 insertions, 86 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index b109c470858..2e4243fcadc 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -14,6 +14,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#include <linux/dma-mapping.h>
#include "ath9k.h"
#define FUDGE 2
@@ -66,50 +67,45 @@ int ath_beaconq_config(struct ath_softc *sc)
* up rate codes, and channel flags. Beacons are always sent out at the
* lowest rate, and are not retried.
*/
-static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
+static void ath_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif,
struct ath_buf *bf, int rateidx)
{
struct sk_buff *skb = bf->bf_mpdu;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
- struct ath_desc *ds;
- struct ath9k_11n_rate_series series[4];
- int flags, ctsrate = 0, ctsduration = 0;
+ struct ath_tx_info info;
struct ieee80211_supported_band *sband;
+ u8 chainmask = ah->txchainmask;
u8 rate = 0;
ath9k_reset_beacon_status(sc);
- ds = bf->bf_desc;
- flags = ATH9K_TXDESC_NOACK;
-
- ds->ds_link = 0;
-
sband = &sc->sbands[common->hw->conf.channel->band];
rate = sband->bitrates[rateidx].hw_value;
- if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
+ if (vif->bss_conf.use_short_preamble)
rate |= sband->bitrates[rateidx].hw_value_short;
- ath9k_hw_set11n_txdesc(ah, ds, skb->len + FCS_LEN,
- ATH9K_PKT_TYPE_BEACON,
- MAX_RATE_POWER,
- ATH9K_TXKEYIX_INVALID,
- ATH9K_KEY_TYPE_CLEAR,
- flags);
-
- /* NB: beacon's BufLen must be a multiple of 4 bytes */
- ath9k_hw_filltxdesc(ah, ds, roundup(skb->len, 4),
- true, true, ds, bf->bf_buf_addr,
- sc->beacon.beaconq);
-
- memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
- series[0].Tries = 1;
- series[0].Rate = rate;
- series[0].ChSel = ath_txchainmask_reduction(sc,
- common->tx_chainmask, series[0].Rate);
- series[0].RateFlags = (ctsrate) ? ATH9K_RATESERIES_RTS_CTS : 0;
- ath9k_hw_set11n_ratescenario(ah, ds, ds, 0, ctsrate, ctsduration,
- series, 4, 0);
+ memset(&info, 0, sizeof(info));
+ info.pkt_len = skb->len + FCS_LEN;
+ info.type = ATH9K_PKT_TYPE_BEACON;
+ info.txpower = MAX_RATE_POWER;
+ info.keyix = ATH9K_TXKEYIX_INVALID;
+ info.keytype = ATH9K_KEY_TYPE_CLEAR;
+ info.flags = ATH9K_TXDESC_NOACK | ATH9K_TXDESC_INTREQ;
+
+ info.buf_addr[0] = bf->bf_buf_addr;
+ info.buf_len[0] = roundup(skb->len, 4);
+
+ info.is_first = true;
+ info.is_last = true;
+
+ info.qcu = sc->beacon.beaconq;
+
+ info.rates[0].Tries = 1;
+ info.rates[0].Rate = rate;
+ info.rates[0].ChSel = ath_txchainmask_reduction(sc, chainmask, rate);
+
+ ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
}
static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
@@ -121,12 +117,11 @@ static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
memset(&txctl, 0, sizeof(struct ath_tx_control));
txctl.txq = sc->beacon.cabq;
- ath_dbg(common, ATH_DBG_XMIT,
- "transmitting CABQ packet, skb: %p\n", skb);
+ ath_dbg(common, XMIT, "transmitting CABQ packet, skb: %p\n", skb);
if (ath_tx_start(hw, skb, &txctl) != 0) {
- ath_dbg(common, ATH_DBG_XMIT, "CABQ TX failed\n");
- dev_kfree_skb_any(skb);
+ ath_dbg(common, XMIT, "CABQ TX failed\n");
+ ieee80211_free_txskb(hw, skb);
}
}
@@ -209,13 +204,13 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
if (skb && cabq_depth) {
if (sc->nvifs > 1) {
- ath_dbg(common, ATH_DBG_BEACON,
+ ath_dbg(common, BEACON,
"Flushing previous cabq traffic\n");
ath_draintxq(sc, cabq, false);
}
}
- ath_beacon_setup(sc, avp, bf, info->control.rates[0].idx);
+ ath_beacon_setup(sc, vif, bf, info->control.rates[0].idx);
while (skb) {
ath_tx_cabq(hw, skb);
@@ -302,7 +297,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
tsfadjust = TU_TO_USEC(intval * avp->av_bslot) / ATH_BCBUF;
avp->tsf_adjust = cpu_to_le64(tsfadjust);
- ath_dbg(common, ATH_DBG_BEACON,
+ ath_dbg(common, BEACON,
"stagger beacons, bslot %d intval %u tsfadjust %llu\n",
avp->av_bslot, intval, (unsigned long long)tsfadjust);
@@ -361,6 +356,7 @@ void ath_beacon_tasklet(unsigned long data)
struct ath_common *common = ath9k_hw_common(ah);
struct ath_buf *bf = NULL;
struct ieee80211_vif *vif;
+ bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
int slot;
u32 bfaddr, bc = 0;
@@ -375,17 +371,16 @@ void ath_beacon_tasklet(unsigned long data)
sc->beacon.bmisscnt++;
if (sc->beacon.bmisscnt < BSTUCK_THRESH * sc->nbcnvifs) {
- ath_dbg(common, ATH_DBG_BSTUCK,
+ ath_dbg(common, BSTUCK,
"missed %u consecutive beacons\n",
sc->beacon.bmisscnt);
ath9k_hw_stop_dma_queue(ah, sc->beacon.beaconq);
if (sc->beacon.bmisscnt > 3)
ath9k_hw_bstuck_nfcal(ah);
} else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) {
- ath_dbg(common, ATH_DBG_BSTUCK,
- "beacon is officially stuck\n");
+ ath_dbg(common, BSTUCK, "beacon is officially stuck\n");
sc->sc_flags |= SC_OP_TSF_RESET;
- ath_reset(sc, true);
+ ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
}
return;
@@ -410,7 +405,7 @@ void ath_beacon_tasklet(unsigned long data)
slot = (tsftu % (intval * ATH_BCBUF)) / intval;
vif = sc->beacon.bslot[slot];
- ath_dbg(common, ATH_DBG_BEACON,
+ ath_dbg(common, BEACON,
"slot %d [tsf %llu tsftu %u intval %u] vif %p\n",
slot, tsf, tsftu / ATH_BCBUF, intval, vif);
} else {
@@ -428,7 +423,7 @@ void ath_beacon_tasklet(unsigned long data)
}
if (sc->beacon.bmisscnt != 0) {
- ath_dbg(common, ATH_DBG_BSTUCK,
+ ath_dbg(common, BSTUCK,
"resume beacon xmit after %u misses\n",
sc->beacon.bmisscnt);
sc->beacon.bmisscnt = 0;
@@ -462,7 +457,9 @@ void ath_beacon_tasklet(unsigned long data)
if (bfaddr != 0) {
/* NB: cabq traffic should already be queued and primed */
ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bfaddr);
- ath9k_hw_txstart(ah, sc->beacon.beaconq);
+
+ if (!edma)
+ ath9k_hw_txstart(ah, sc->beacon.beaconq);
sc->beacon.ast_be_xmit += bc; /* XXX per-vif? */
}
@@ -497,7 +494,7 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
u32 nexttbtt, intval;
/* NB: the beacon interval is kept internally in TU's */
- intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
+ intval = TU_TO_USEC(conf->beacon_interval);
intval /= ATH_BCBUF; /* for staggered beacons */
nexttbtt = intval;
@@ -511,9 +508,11 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
/* Set the computed AP beacon timers */
ath9k_hw_disable_interrupts(ah);
+ sc->sc_flags |= SC_OP_TSF_RESET;
ath9k_beacon_init(sc, nexttbtt, intval);
sc->beacon.bmisscnt = 0;
- ath9k_hw_set_interrupts(ah, ah->imask);
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_enable_interrupts(ah);
}
/*
@@ -538,13 +537,13 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
/* No need to configure beacon if we are not associated */
if (!common->curaid) {
- ath_dbg(common, ATH_DBG_BEACON,
+ ath_dbg(common, BEACON,
"STA is not yet associated..skipping beacon config\n");
return;
}
memset(&bs, 0, sizeof(bs));
- intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
+ intval = conf->beacon_interval;
/*
* Setup dtim and cfp parameters according to
@@ -628,8 +627,8 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
/* 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, BEACON, "tsf: %llu tsftu: %u\n", tsf, tsftu);
+ ath_dbg(common, BEACON,
"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);
@@ -640,12 +639,8 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
ath9k_hw_set_sta_beacon_timers(ah, &bs);
ah->imask |= ATH9K_INT_BMISS;
- /*
- * If the beacon config is called beacause of TSFOOR,
- * Interrupts will be enabled back at the end of ath9k_tasklet
- */
- if (!(sc->ps_flags & PS_TSFOOR_SYNC))
- ath9k_hw_set_interrupts(ah, ah->imask);
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_enable_interrupts(ah);
}
static void ath_beacon_config_adhoc(struct ath_softc *sc,
@@ -653,25 +648,15 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
- u32 tsf, delta, intval, nexttbtt;
+ u32 tsf, intval, nexttbtt;
ath9k_reset_beacon_status(sc);
- tsf = ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE);
- intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
-
- if (!sc->beacon.bc_tstamp)
- nexttbtt = tsf + intval;
- else {
- if (tsf > sc->beacon.bc_tstamp)
- delta = (tsf - sc->beacon.bc_tstamp);
- else
- delta = (tsf + 1 + (~0U - sc->beacon.bc_tstamp));
- nexttbtt = tsf + intval - (delta % intval);
- }
+ intval = TU_TO_USEC(conf->beacon_interval);
+ tsf = roundup(ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE), intval);
+ nexttbtt = tsf + intval;
- ath_dbg(common, ATH_DBG_BEACON,
- "IBSS nexttbtt %u intval %u (%u)\n",
+ ath_dbg(common, BEACON, "IBSS nexttbtt %u intval %u (%u)\n",
nexttbtt, intval, conf->beacon_interval);
/*
@@ -688,12 +673,9 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
ath9k_hw_disable_interrupts(ah);
ath9k_beacon_init(sc, nexttbtt, intval);
sc->beacon.bmisscnt = 0;
- /*
- * If the beacon config is called beacause of TSFOOR,
- * Interrupts will be enabled back at the end of ath9k_tasklet
- */
- if (!(sc->ps_flags & PS_TSFOOR_SYNC))
- ath9k_hw_set_interrupts(ah, ah->imask);
+
+ ath9k_hw_set_interrupts(ah);
+ ath9k_hw_enable_interrupts(ah);
}
static bool ath9k_allow_beacon_config(struct ath_softc *sc,
@@ -712,9 +694,8 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
(sc->nbcnvifs > 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");
+ ath_dbg(common, CONFIG,
+ "Changing beacon interval of multiple AP interfaces !\n");
return false;
}
/*
@@ -723,7 +704,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
*/
if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) &&
(vif->type != NL80211_IFTYPE_AP)) {
- ath_dbg(common, ATH_DBG_CONFIG,
+ ath_dbg(common, CONFIG,
"STA vif's beacon not allowed on AP mode\n");
return false;
}
@@ -735,7 +716,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
(vif->type == NL80211_IFTYPE_STATION) &&
(sc->sc_flags & SC_OP_BEACONS) &&
!avp->primary_sta_vif) {
- ath_dbg(common, ATH_DBG_CONFIG,
+ ath_dbg(common, CONFIG,
"Beacon already configured for a station interface\n");
return false;
}
@@ -815,8 +796,7 @@ void ath_set_beacon(struct ath_softc *sc)
ath_beacon_config_sta(sc, cur_conf);
break;
default:
- ath_dbg(common, ATH_DBG_CONFIG,
- "Unsupported beaconing mode\n");
+ ath_dbg(common, CONFIG, "Unsupported beaconing mode\n");
return;
}
@@ -834,11 +814,11 @@ void ath9k_set_beaconing_status(struct ath_softc *sc, bool status)
if (status) {
/* Re-enable beaconing */
ah->imask |= ATH9K_INT_SWBA;
- ath9k_hw_set_interrupts(ah, ah->imask);
+ ath9k_hw_set_interrupts(ah);
} else {
/* Disable SWBA interrupt */
ah->imask &= ~ATH9K_INT_SWBA;
- ath9k_hw_set_interrupts(ah, ah->imask);
+ ath9k_hw_set_interrupts(ah);
tasklet_kill(&sc->bcon_tasklet);
ath9k_hw_stop_dma_queue(ah, sc->beacon.beaconq);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 08:20:10 +0000