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-rw-r--r--drivers/net/wireless/ath/ar9170/main.c2
-rw-r--r--drivers/net/wireless/ath/ath5k/base.c54
-rw-r--r--drivers/net/wireless/ath/ath5k/pcu.c4
-rw-r--r--drivers/net/wireless/ath/ath5k/phy.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h9
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c98
-rw-r--r--drivers/net/wireless/ath/ath9k/debug.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c8
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c119
-rw-r--r--drivers/net/wireless/ath/ath9k/recv.c194
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c12
-rw-r--r--drivers/net/wireless/ath/regd.c10
12 files changed, 390 insertions, 124 deletions
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index 4ef1d2fc859..99df9ddae9c 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -1555,7 +1555,7 @@ static int ar9170_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
switch (key->alg) {
case ALG_WEP:
- if (key->keylen == LEN_WEP40)
+ if (key->keylen == WLAN_KEY_LEN_WEP40)
ktype = AR9170_ENC_ALG_WEP64;
else
ktype = AR9170_ENC_ALG_WEP128;
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index dbfe9f45050..fb5193764af 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -242,8 +242,8 @@ static int ath5k_get_tx_stats(struct ieee80211_hw *hw,
static u64 ath5k_get_tsf(struct ieee80211_hw *hw);
static void ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf);
static void ath5k_reset_tsf(struct ieee80211_hw *hw);
-static int ath5k_beacon_update(struct ath5k_softc *sc,
- struct sk_buff *skb);
+static int ath5k_beacon_update(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@@ -2127,8 +2127,10 @@ ath5k_beacon_send(struct ath5k_softc *sc)
/* NB: hw still stops DMA, so proceed */
}
- /* Note: Beacon buffer is updated on beacon_update when mac80211
- * calls config_interface */
+ /* refresh the beacon for AP mode */
+ if (sc->opmode == NL80211_IFTYPE_AP)
+ ath5k_beacon_update(sc->hw, sc->vif);
+
ath5k_hw_set_txdp(ah, sc->bhalq, bf->daddr);
ath5k_hw_start_tx_dma(ah, sc->bhalq);
ATH5K_DBG(sc, ATH5K_DEBUG_BEACON, "TXDP[%u] = %llx (%p)\n",
@@ -3047,28 +3049,55 @@ ath5k_reset_tsf(struct ieee80211_hw *hw)
ath5k_hw_reset_tsf(sc->ah);
}
+/*
+ * Updates the beacon that is sent by ath5k_beacon_send. For adhoc,
+ * this is called only once at config_bss time, for AP we do it every
+ * SWBA interrupt so that the TIM will reflect buffered frames.
+ *
+ * Called with the beacon lock.
+ */
static int
-ath5k_beacon_update(struct ath5k_softc *sc, struct sk_buff *skb)
+ath5k_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
- unsigned long flags;
int ret;
+ struct ath5k_softc *sc = hw->priv;
+ struct sk_buff *skb = ieee80211_beacon_get(hw, vif);
+
+ if (!skb) {
+ ret = -ENOMEM;
+ goto out;
+ }
ath5k_debug_dump_skb(sc, skb, "BC ", 1);
- spin_lock_irqsave(&sc->block, flags);
ath5k_txbuf_free(sc, sc->bbuf);
sc->bbuf->skb = skb;
ret = ath5k_beacon_setup(sc, sc->bbuf);
if (ret)
sc->bbuf->skb = NULL;
+out:
+ return ret;
+}
+
+/*
+ * Update the beacon and reconfigure the beacon queues.
+ */
+static void
+ath5k_beacon_reconfig(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ int ret;
+ unsigned long flags;
+ struct ath5k_softc *sc = hw->priv;
+
+ spin_lock_irqsave(&sc->block, flags);
+ ret = ath5k_beacon_update(hw, vif);
spin_unlock_irqrestore(&sc->block, flags);
- if (!ret) {
+ if (ret == 0) {
ath5k_beacon_config(sc);
mmiowb();
}
-
- return ret;
}
+
static void
set_beacon_filter(struct ieee80211_hw *hw, bool enable)
{
@@ -3118,10 +3147,7 @@ static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
(vif->type == NL80211_IFTYPE_ADHOC ||
vif->type == NL80211_IFTYPE_MESH_POINT ||
vif->type == NL80211_IFTYPE_AP)) {
- struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
-
- if (beacon)
- ath5k_beacon_update(sc, beacon);
+ ath5k_beacon_reconfig(hw, vif);
}
unlock:
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index 579aa0a96ab..ec35503f6a4 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -1038,9 +1038,9 @@ int ath5k_keycache_type(const struct ieee80211_key_conf *key)
case ALG_CCMP:
return AR5K_KEYTABLE_TYPE_CCM;
case ALG_WEP:
- if (key->keylen == LEN_WEP40)
+ if (key->keylen == WLAN_KEY_LEN_WEP40)
return AR5K_KEYTABLE_TYPE_40;
- else if (key->keylen == LEN_WEP104)
+ else if (key->keylen == WLAN_KEY_LEN_WEP104)
return AR5K_KEYTABLE_TYPE_104;
return -EINVAL;
default:
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index d0d1c350025..a876ca8d69e 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1897,6 +1897,9 @@ ath5k_get_linear_pcdac_min(const u8 *stepL, const u8 *stepR,
s16 min_pwrL, min_pwrR;
s16 pwr_i;
+ if (WARN_ON(stepL[0] == stepL[1] || stepR[0] == stepR[1]))
+ return 0;
+
if (pwrL[0] == pwrL[1])
min_pwrL = pwrL[0];
else {
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 10ffc944285..796a3adffea 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -515,6 +515,10 @@ struct ath_rfkill {
#define SC_OP_LED_ON BIT(13)
#define SC_OP_SCANNING BIT(14)
#define SC_OP_TSF_RESET BIT(15)
+#define SC_OP_WAIT_FOR_CAB BIT(16)
+#define SC_OP_WAIT_FOR_PSPOLL_DATA BIT(17)
+#define SC_OP_WAIT_FOR_TX_ACK BIT(18)
+#define SC_OP_BEACON_SYNC BIT(19)
struct ath_bus_ops {
void (*read_cachesize)(struct ath_softc *sc, int *csz);
@@ -599,6 +603,7 @@ struct ath_softc {
struct ath9k_debug debug;
#endif
struct ath_bus_ops *bus_ops;
+ struct ath_beacon_config cur_beacon_conf;
};
struct ath_wiphy {
@@ -676,7 +681,9 @@ static inline void ath9k_ps_restore(struct ath_softc *sc)
{
if (atomic_dec_and_test(&sc->ps_usecount))
if ((sc->hw->conf.flags & IEEE80211_CONF_PS) &&
- !(sc->sc_flags & SC_OP_WAIT_FOR_BEACON))
+ !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
+ SC_OP_WAIT_FOR_PSPOLL_DATA |
+ SC_OP_WAIT_FOR_TX_ACK)))
ath9k_hw_setpower(sc->sc_ah,
sc->sc_ah->restore_mode);
}
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 3a7154beeae..a21b21339fb 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -507,8 +507,7 @@ void ath_beacon_tasklet(unsigned long data)
* slot. Slots that are not occupied will generate nothing.
*/
static void ath_beacon_config_ap(struct ath_softc *sc,
- struct ath_beacon_config *conf,
- struct ath_vif *avp)
+ struct ath_beacon_config *conf)
{
u32 nexttbtt, intval;
@@ -553,14 +552,14 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
* we've associated with.
*/
static void ath_beacon_config_sta(struct ath_softc *sc,
- struct ath_beacon_config *conf,
- struct ath_vif *avp)
+ struct ath_beacon_config *conf)
{
struct ath9k_beacon_state bs;
int dtimperiod, dtimcount, sleepduration;
int cfpperiod, cfpcount;
u32 nexttbtt = 0, intval, tsftu;
u64 tsf;
+ int num_beacons, offset, dtim_dec_count, cfp_dec_count;
memset(&bs, 0, sizeof(bs));
intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
@@ -588,14 +587,27 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
*/
tsf = ath9k_hw_gettsf64(sc->sc_ah);
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
- do {
+
+ num_beacons = tsftu / intval + 1;
+ offset = tsftu % intval;
+ nexttbtt = tsftu - offset;
+ if (offset)
nexttbtt += intval;
- if (--dtimcount < 0) {
- dtimcount = dtimperiod - 1;
- if (--cfpcount < 0)
- cfpcount = cfpperiod - 1;
- }
- } while (nexttbtt < tsftu);
+
+ /* DTIM Beacon every dtimperiod Beacon */
+ dtim_dec_count = num_beacons % dtimperiod;
+ /* CFP every cfpperiod DTIM Beacon */
+ cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod;
+ if (dtim_dec_count)
+ cfp_dec_count++;
+
+ dtimcount -= dtim_dec_count;
+ if (dtimcount < 0)
+ dtimcount += dtimperiod;
+
+ cfpcount -= cfp_dec_count;
+ if (cfpcount < 0)
+ cfpcount += cfpperiod;
bs.bs_intval = intval;
bs.bs_nexttbtt = nexttbtt;
@@ -654,7 +666,6 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
static void ath_beacon_config_adhoc(struct ath_softc *sc,
struct ath_beacon_config *conf,
- struct ath_vif *avp,
struct ieee80211_vif *vif)
{
u64 tsf;
@@ -698,43 +709,50 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
sc->beacon.bmisscnt = 0;
ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)
+ /* 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);
}
void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
{
- struct ath_beacon_config conf;
+ struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
+ enum nl80211_iftype iftype;
/* Setup the beacon configuration parameters */
- memset(&conf, 0, sizeof(struct ath_beacon_config));
- conf.beacon_interval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
- conf.listen_interval = 1;
- conf.dtim_period = conf.beacon_interval;
- conf.dtim_count = 1;
- conf.bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf.beacon_interval;
-
if (vif) {
- struct ath_vif *avp = (struct ath_vif *)vif->drv_priv;
-
- switch(avp->av_opmode) {
- case NL80211_IFTYPE_AP:
- ath_beacon_config_ap(sc, &conf, avp);
- break;
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_MESH_POINT:
- ath_beacon_config_adhoc(sc, &conf, avp, vif);
- break;
- case NL80211_IFTYPE_STATION:
- ath_beacon_config_sta(sc, &conf, avp);
- break;
- default:
- DPRINTF(sc, ATH_DBG_CONFIG,
- "Unsupported beaconing mode\n");
- return;
- }
+ struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+
+ iftype = vif->type;
+
+ cur_conf->beacon_interval = bss_conf->beacon_int;
+ 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;
+ } else {
+ iftype = sc->sc_ah->opmode;
+ }
+
- sc->sc_flags |= SC_OP_BEACONS;
+ switch (iftype) {
+ case NL80211_IFTYPE_AP:
+ ath_beacon_config_ap(sc, cur_conf);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ ath_beacon_config_adhoc(sc, cur_conf, vif);
+ break;
+ case NL80211_IFTYPE_STATION:
+ ath_beacon_config_sta(sc, cur_conf);
+ break;
+ default:
+ DPRINTF(sc, ATH_DBG_CONFIG,
+ "Unsupported beaconing mode\n");
+ return;
}
+
+ sc->sc_flags |= SC_OP_BEACONS;
}
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 23298b90b52..db845cf960c 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -29,6 +29,7 @@ enum ATH_DEBUG {
ATH_DBG_BEACON = 0x00000100,
ATH_DBG_CONFIG = 0x00000200,
ATH_DBG_FATAL = 0x00000400,
+ ATH_DBG_PS = 0x00000800,
ATH_DBG_ANY = 0xffffffff
};
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 4acfab51491..1579c9407ed 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2472,14 +2472,14 @@ bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
}
break;
case ATH9K_CIPHER_WEP:
- if (k->kv_len < LEN_WEP40) {
+ if (k->kv_len < WLAN_KEY_LEN_WEP40) {
DPRINTF(ah->ah_sc, ATH_DBG_ANY,
"WEP key length %u too small\n", k->kv_len);
return false;
}
- if (k->kv_len <= LEN_WEP40)
+ if (k->kv_len <= WLAN_KEY_LEN_WEP40)
keyType = AR_KEYTABLE_TYPE_40;
- else if (k->kv_len <= LEN_WEP104)
+ else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
keyType = AR_KEYTABLE_TYPE_104;
else
keyType = AR_KEYTABLE_TYPE_128;
@@ -2498,7 +2498,7 @@ bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
key2 = get_unaligned_le32(k->kv_val + 6);
key3 = get_unaligned_le16(k->kv_val + 10);
key4 = get_unaligned_le32(k->kv_val + 12);
- if (k->kv_len <= LEN_WEP104)
+ if (k->kv_len <= WLAN_KEY_LEN_WEP104)
key4 &= 0xff;
/*
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index bbbfdcde272..61da08a1648 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -35,14 +35,14 @@ MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
#define CHAN2G(_freq, _idx) { \
.center_freq = (_freq), \
.hw_value = (_idx), \
- .max_power = 30, \
+ .max_power = 20, \
}
#define CHAN5G(_freq, _idx) { \
.band = IEEE80211_BAND_5GHZ, \
.center_freq = (_freq), \
.hw_value = (_idx), \
- .max_power = 30, \
+ .max_power = 20, \
}
/* Some 2 GHz radios are actually tunable on 2312-2732
@@ -280,7 +280,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
if (r) {
DPRINTF(sc, ATH_DBG_FATAL,
"Unable to reset channel (%u Mhz) "
- "reset status %u\n",
+ "reset status %d\n",
channel->center_freq, r);
spin_unlock_bh(&sc->sc_resetlock);
return r;
@@ -329,6 +329,12 @@ static void ath_ani_calibrate(unsigned long data)
if (sc->sc_flags & SC_OP_SCANNING)
goto set_timer;
+ /* Only calibrate if awake */
+ if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE)
+ goto set_timer;
+
+ ath9k_ps_wakeup(sc);
+
/* Long calibration runs independently of short calibration. */
if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
longcal = true;
@@ -380,6 +386,8 @@ static void ath_ani_calibrate(unsigned long data)
}
}
+ ath9k_ps_restore(sc);
+
set_timer:
/*
* Set timer interval based on previous results.
@@ -455,8 +463,11 @@ static void ath9k_tasklet(unsigned long data)
struct ath_softc *sc = (struct ath_softc *)data;
u32 status = sc->intrstatus;
+ ath9k_ps_wakeup(sc);
+
if (status & ATH9K_INT_FATAL) {
ath_reset(sc, false);
+ ath9k_ps_restore(sc);
return;
}
@@ -469,8 +480,19 @@ static void ath9k_tasklet(unsigned long data)
if (status & ATH9K_INT_TX)
ath_tx_tasklet(sc);
+ if ((status & ATH9K_INT_TSFOOR) &&
+ (sc->hw->conf.flags & IEEE80211_CONF_PS)) {
+ /*
+ * TSF sync does not look correct; remain awake to sync with
+ * the next Beacon.
+ */
+ DPRINTF(sc, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n");
+ sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC;
+ }
+
/* re-enable hardware interrupt */
ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
+ ath9k_ps_restore(sc);
}
irqreturn_t ath_isr(int irq, void *dev)
@@ -498,14 +520,11 @@ irqreturn_t ath_isr(int irq, void *dev)
if (sc->sc_flags & SC_OP_INVALID)
return IRQ_NONE;
- ath9k_ps_wakeup(sc);
/* shared irq, not for us */
- if (!ath9k_hw_intrpend(ah)) {
- ath9k_ps_restore(sc);
+ if (!ath9k_hw_intrpend(ah))
return IRQ_NONE;
- }
/*
* Figure out the reason(s) for the interrupt. Note
@@ -520,10 +539,8 @@ irqreturn_t ath_isr(int irq, void *dev)
* If there are no status bits set, then this interrupt was not
* for me (should have been caught above).
*/
- if (!status) {
- ath9k_ps_restore(sc);
+ if (!status)
return IRQ_NONE;
- }
/* Cache the status */
sc->intrstatus = status;
@@ -560,20 +577,17 @@ irqreturn_t ath_isr(int irq, void *dev)
ath9k_hw_set_interrupts(ah, sc->imask);
}
- if (status & ATH9K_INT_TIM_TIMER) {
- if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+ if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
+ if (status & ATH9K_INT_TIM_TIMER) {
/* Clear RxAbort bit so that we can
* receive frames */
ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
- ath9k_hw_setrxabort(ah, 0);
- sched = true;
+ ath9k_hw_setrxabort(sc->sc_ah, 0);
sc->sc_flags |= SC_OP_WAIT_FOR_BEACON;
}
- }
chip_reset:
- ath9k_ps_restore(sc);
ath_debug_stat_interrupt(sc, status);
if (sched) {
@@ -900,6 +914,13 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
if (avp->av_opmode == NL80211_IFTYPE_STATION) {
sc->curaid = bss_conf->aid;
ath9k_hw_write_associd(sc);
+
+ /*
+ * Request a re-configuration of Beacon related timers
+ * on the receipt of the first Beacon frame (i.e.,
+ * after time sync with the AP).
+ */
+ sc->sc_flags |= SC_OP_BEACON_SYNC;
}
/* Configure the beacon */
@@ -1094,7 +1115,7 @@ void ath_radio_enable(struct ath_softc *sc)
if (r) {
DPRINTF(sc, ATH_DBG_FATAL,
"Unable to reset channel %u (%uMhz) ",
- "reset status %u\n",
+ "reset status %d\n",
channel->center_freq, r);
}
spin_unlock_bh(&sc->sc_resetlock);
@@ -1146,7 +1167,7 @@ void ath_radio_disable(struct ath_softc *sc)
if (r) {
DPRINTF(sc, ATH_DBG_FATAL,
"Unable to reset channel %u (%uMhz) "
- "reset status %u\n",
+ "reset status %d\n",
channel->center_freq, r);
}
spin_unlock_bh(&sc->sc_resetlock);
@@ -1416,8 +1437,6 @@ static int ath_init(u16 devid, struct ath_softc *sc)
for (i = 0; i < sc->keymax; i++)
ath9k_hw_keyreset(ah, (u16) i);
- error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy,
- ath9k_reg_notifier);
if (error)
goto bad;
@@ -1630,14 +1649,19 @@ int ath_attach(u16 devid, struct ath_softc *sc)
if (error != 0)
return error;
- reg = &sc->sc_ah->regulatory;
-
/* get mac address from hardware and set in mac80211 */
SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr);
ath_set_hw_capab(sc, hw);
+ error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy,
+ ath9k_reg_notifier);
+ if (error)
+ return error;
+
+ reg = &sc->sc_ah->regulatory;
+
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes))
@@ -1709,7 +1733,7 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false);
if (r)
DPRINTF(sc, ATH_DBG_FATAL,
- "Unable to reset hardware; reset status %u\n", r);
+ "Unable to reset hardware; reset status %d\n", r);
spin_unlock_bh(&sc->sc_resetlock);
if (ath_startrecv(sc) != 0)
@@ -2001,7 +2025,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
r = ath9k_hw_reset(sc->sc_ah, init_channel, false);
if (r) {
DPRINTF(sc, ATH_DBG_FATAL,
- "Unable to reset hardware; reset status %u "
+ "Unable to reset hardware; reset status %d "
"(freq %u MHz)\n", r,
curchan->center_freq);
spin_unlock_bh(&sc->sc_resetlock);
@@ -2074,6 +2098,46 @@ static int ath9k_tx(struct ieee80211_hw *hw,
goto exit;
}
+ if (sc->hw->conf.flags & IEEE80211_CONF_PS) {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ /*
+ * mac80211 does not set PM field for normal data frames, so we
+ * need to update that based on the current PS mode.
+ */
+ if (ieee80211_is_data(hdr->frame_control) &&
+ !ieee80211_is_nullfunc(hdr->frame_control) &&
+ !ieee80211_has_pm(hdr->frame_control)) {
+ DPRINTF(sc, ATH_DBG_PS, "Add PM=1 for a TX frame "
+ "while in PS mode\n");
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
+ }
+ }
+
+ if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) {
+ /*
+ * We are using PS-Poll and mac80211 can request TX while in
+ * power save mode. Need to wake up hardware for the TX to be
+ * completed and if needed, also for RX of buffered frames.
+ */
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ ath9k_ps_wakeup(sc);
+ ath9k_hw_setrxabort(sc->sc_ah, 0);
+ if (ieee80211_is_pspoll(hdr->frame_control)) {
+ DPRINTF(sc, ATH_DBG_PS, "Sending PS-Poll to pick a "
+ "buffered frame\n");
+ sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA;
+ } else {
+ DPRINTF(sc, ATH_DBG_PS, "Wake up to complete TX\n");
+ sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK;
+ }
+ /*
+ * The actual restore operation will happen only after
+ * the sc_flags bit is cleared. We are just dropping
+ * the ps_usecount here.
+ */
+ ath9k_ps_restore(sc);
+ }
+
memset(&txctl, 0, sizeof(struct ath_tx_control));
/*
@@ -2311,7 +2375,10 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (!(ah->caps.hw_caps &
ATH9K_HW_CAP_AUTOSLEEP)) {
ath9k_hw_setrxabort(sc->sc_ah, 0);
- sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON;
+ sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON |
+ SC_OP_WAIT_FOR_CAB |
+ SC_OP_WAIT_FOR_PSPOLL_DATA |
+ SC_OP_WAIT_FOR_TX_ACK);
if (sc->imask & ATH9K_INT_TIM_TIMER) {
sc->imask &= ~ATH9K_INT_TIM_TIMER;
ath9k_hw_set_interrupts(sc->sc_ah,
@@ -2386,8 +2453,10 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw,
*total_flags &= SUPPORTED_FILTERS;
sc->rx.rxfilter = *total_flags;
+ ath9k_ps_wakeup(sc);
rfilt = ath_calcrxfilter(sc);
ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
+ ath9k_ps_restore(sc);
DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter);
}
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index b46badd21f7..5014a19b0f7 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -473,6 +473,159 @@ void ath_flushrecv(struct ath_softc *sc)
spin_unlock_bh(&sc->rx.rxflushlock);
}
+static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb)
+{
+ /* Check whether the Beacon frame has DTIM indicating buffered bc/mc */
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos, *end, id, elen;
+ struct ieee80211_tim_ie *tim;
+
+ mgmt = (struct ieee80211_mgmt *)skb->data;
+ pos = mgmt->u.beacon.variable;
+ end = skb->data + skb->len;
+
+ while (pos + 2 < end) {
+ id = *pos++;
+ elen = *pos++;
+ if (pos + elen > end)
+ break;
+
+ if (id == WLAN_EID_TIM) {
+ if (elen < sizeof(*tim))
+ break;
+ tim = (struct ieee80211_tim_ie *) pos;
+ if (tim->dtim_count != 0)
+ break;
+ return tim->bitmap_ctrl & 0x01;
+ }
+
+ pos += elen;
+ }
+
+ return false;
+}
+
+static void ath_rx_ps_back_to_sleep(struct ath_softc *sc)
+{
+ sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | SC_OP_WAIT_FOR_CAB);
+}
+
+static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb)
+{
+ struct ieee80211_mgmt *mgmt;
+
+ if (skb->len < 24 + 8 + 2 + 2)
+ return;
+
+ mgmt = (struct ieee80211_mgmt *)skb->data;
+ if (memcmp(sc->curbssid, mgmt->bssid, ETH_ALEN) != 0)
+ return; /* not from our current AP */
+
+ if (sc->sc_flags & SC_OP_BEACON_SYNC) {
+ sc->sc_flags &= ~SC_OP_BEACON_SYNC;
+ DPRINTF(sc, ATH_DBG_PS, "Reconfigure Beacon timers based on "
+ "timestamp from the AP\n");
+ ath_beacon_config(sc, NULL);
+ }
+
+ if (!(sc->hw->conf.flags & IEEE80211_CONF_PS)) {
+ /* We are not in PS mode anymore; remain awake */
+ DPRINTF(sc, ATH_DBG_PS, "Not in PS mode anymore, remain "
+ "awake\n");
+ sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | SC_OP_WAIT_FOR_CAB);
+ return;
+ }
+
+ if (ath_beacon_dtim_pending_cab(skb)) {
+ /*
+ * Remain awake waiting for buffered broadcast/multicast
+ * frames.
+ */
+ DPRINTF(sc, ATH_DBG_PS, "Received DTIM beacon indicating "
+ "buffered broadcast/multicast frame(s)\n");
+ sc->sc_flags |= SC_OP_WAIT_FOR_CAB;
+ return;
+ }
+
+ if (sc->sc_flags & SC_OP_WAIT_FOR_CAB) {
+ /*
+ * This can happen if a broadcast frame is dropped or the AP
+ * fails to send a frame indicating that all CAB frames have
+ * been delivered.
+ */
+ DPRINTF(sc, ATH_DBG_PS, "PS wait for CAB frames timed out\n");
+ }
+
+ /* No more broadcast/multicast frames to be received at this point. */
+ ath_rx_ps_back_to_sleep(sc);
+}
+
+static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr;
+
+ hdr = (struct ieee80211_hdr *)skb->data;
+
+ /* Process Beacon and CAB receive in PS state */
+ if ((sc->sc_flags & SC_OP_WAIT_FOR_BEACON) &&
+ ieee80211_is_beacon(hdr->frame_control))
+ ath_rx_ps_beacon(sc, skb);
+ else if ((sc->sc_flags & SC_OP_WAIT_FOR_CAB) &&
+ (ieee80211_is_data(hdr->frame_control) ||
+ ieee80211_is_action(hdr->frame_control)) &&
+ is_multicast_ether_addr(hdr->addr1) &&
+ !ieee80211_has_moredata(hdr->frame_control)) {
+ DPRINTF(sc, ATH_DBG_PS, "All PS CAB frames received, back to "
+ "sleep\n");
+ /*
+ * No more broadcast/multicast frames to be received at this
+ * point.
+ */
+ ath_rx_ps_back_to_sleep(sc);
+ } else if ((sc->sc_flags & SC_OP_WAIT_FOR_PSPOLL_DATA) &&
+ !is_multicast_ether_addr(hdr->addr1) &&
+ !ieee80211_has_morefrags(hdr->frame_control)) {
+ sc->sc_flags &= ~SC_OP_WAIT_FOR_PSPOLL_DATA;
+ DPRINTF(sc, ATH_DBG_PS, "Going back to sleep after having "
+ "received PS-Poll data (0x%x)\n",
+ sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
+ SC_OP_WAIT_FOR_CAB |
+ SC_OP_WAIT_FOR_PSPOLL_DATA |
+ SC_OP_WAIT_FOR_TX_ACK));
+ }
+}
+
+static void ath_rx_send_to_mac80211(struct ath_softc *sc, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_hdr *hdr;
+
+ hdr = (struct ieee80211_hdr *)skb->data;
+
+ /* Send the frame to mac80211 */
+ if (is_multicast_ether_addr(hdr->addr1)) {
+ int i;
+ /*
+ * Deliver broadcast/multicast frames to all suitable
+ * virtual wiphys.
+ */
+ /* TODO: filter based on channel configuration */
+ for (i = 0; i < sc->num_sec_wiphy; i++) {
+ struct ath_wiphy *aphy = sc->sec_wiphy[i];
+ struct sk_buff *nskb;
+ if (aphy == NULL)
+ continue;
+ nskb = skb_copy(skb, GFP_ATOMIC);
+ if (nskb)
+ __ieee80211_rx(aphy->hw, nskb, rx_status);
+ }
+ __ieee80211_rx(sc->hw, skb, rx_status);
+ } else {
+ /* Deliver unicast frames based on receiver address */
+ __ieee80211_rx(ath_get_virt_hw(sc, hdr), skb, rx_status);
+ }
+}
+
int ath_rx_tasklet(struct ath_softc *sc, int flush)
{
#define PA2DESC(_sc, _pa) \
@@ -622,7 +775,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error) {
rx_status.flag |= RX_FLAG_DECRYPTED;
- } else if ((le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_PROTECTED)
+ } else if (ieee80211_has_protected(fc)
&& !decrypt_error && skb->len >= hdrlen + 4) {
keyix = skb->data[hdrlen + 3] >> 6;
@@ -631,36 +784,11 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
}
if (ah->sw_mgmt_crypto &&
(rx_status.flag & RX_FLAG_DECRYPTED) &&
- ieee80211_is_mgmt(hdr->frame_control)) {
+ ieee80211_is_mgmt(fc)) {
/* Use software decrypt for management frames. */
rx_status.flag &= ~RX_FLAG_DECRYPTED;
}
- /* Send the frame to mac80211 */
- if (hdr->addr1[5] & 0x01) {
- int i;
- /*
- * Deliver broadcast/multicast frames to all suitable
- * virtual wiphys.
- */
- /* TODO: filter based on channel configuration */
- for (i = 0; i < sc->num_sec_wiphy; i++) {
- struct ath_wiphy *aphy = sc->sec_wiphy[i];
- struct sk_buff *nskb;
- if (aphy == NULL)
- continue;
- nskb = skb_copy(skb, GFP_ATOMIC);
- if (nskb)
- __ieee80211_rx(aphy->hw, nskb,
- &rx_status);
- }
- __ieee80211_rx(sc->hw, skb, &rx_status);
- } else {
- /* Deliver unicast frames based on receiver address */
- __ieee80211_rx(ath_get_virt_hw(sc, hdr), skb,
- &rx_status);
- }
-
/* We will now give hardware our shiny new allocated skb */
bf->bf_mpdu = requeue_skb;
bf->bf_buf_addr = dma_map_single(sc->dev, requeue_skb->data,
@@ -672,6 +800,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
bf->bf_mpdu = NULL;
DPRINTF(sc, ATH_DBG_FATAL,
"dma_mapping_error() on RX\n");
+ ath_rx_send_to_mac80211(sc, skb, &rx_status);
break;
}
bf->bf_dmacontext = bf->bf_buf_addr;
@@ -687,11 +816,12 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
sc->rx.rxotherant = 0;
}
- if (ieee80211_is_beacon(fc) &&
- (sc->sc_flags & SC_OP_WAIT_FOR_BEACON)) {
- sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON;
- ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
- }
+ if (unlikely(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
+ SC_OP_WAIT_FOR_PSPOLL_DATA)))
+ ath_rx_ps(sc, skb);
+
+ ath_rx_send_to_mac80211(sc, skb, &rx_status);
+
requeue:
list_move_tail(&bf->list, &sc->rx.rxbuf);
ath_rx_buf_link(sc, bf);
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 41c42824a5c..a8def4fa449 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1070,7 +1070,7 @@ void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx)
r = ath9k_hw_reset(ah, sc->sc_ah->curchan, true);
if (r)
DPRINTF(sc, ATH_DBG_FATAL,
- "Unable to reset hardware; reset status %u\n",
+ "Unable to reset hardware; reset status %d\n",
r);
spin_unlock_bh(&sc->sc_resetlock);
}
@@ -1790,6 +1790,16 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
skb_pull(skb, padsize);
}
+ if (sc->sc_flags & SC_OP_WAIT_FOR_TX_ACK) {
+ sc->sc_flags &= ~SC_OP_WAIT_FOR_TX_ACK;
+ DPRINTF(sc, ATH_DBG_PS, "Going back to sleep after having "
+ "received TX status (0x%x)\n",
+ sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
+ SC_OP_WAIT_FOR_CAB |
+ SC_OP_WAIT_FOR_PSPOLL_DATA |
+ SC_OP_WAIT_FOR_TX_ACK));
+ }
+
if (frame_type == ATH9K_NOT_INTERNAL)
ieee80211_tx_status(hw, skb);
else
diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index fdf07c82208..7a89f9fac7d 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -200,8 +200,10 @@ ath_reg_apply_beaconing_flags(struct wiphy *wiphy,
continue;
if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
- r = freq_reg_info(wiphy, ch->center_freq,
- &bandwidth, &reg_rule);
+ r = freq_reg_info(wiphy,
+ ch->center_freq,
+ bandwidth,
+ &reg_rule);
if (r)
continue;
/*
@@ -265,7 +267,7 @@ ath_reg_apply_active_scan_flags(struct wiphy *wiphy,
*/
ch = &sband->channels[11]; /* CH 12 */
- r = freq_reg_info(wiphy, ch->center_freq, &bandwidth, &reg_rule);
+ r = freq_reg_info(wiphy, ch->center_freq, bandwidth, &reg_rule);
if (!r) {
if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN))
if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
@@ -273,7 +275,7 @@ ath_reg_apply_active_scan_flags(struct wiphy *wiphy,
}
ch = &sband->channels[12]; /* CH 13 */
- r = freq_reg_info(wiphy, ch->center_freq, &bandwidth, &reg_rule);
+ r = freq_reg_info(wiphy, ch->center_freq, bandwidth, &reg_rule);
if (!r) {
if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN))
if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN)
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-28 11:16:04 +0000