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-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h2
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c5
-rw-r--r--drivers/net/wireless/ath/ath9k/common.c11
-rw-r--r--drivers/net/wireless/ath/ath9k/common.h2
-rw-r--r--drivers/net/wireless/ath/ath9k/debug.c23
-rw-r--r--drivers/net/wireless/ath/ath9k/htc.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_gpio.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_main.c24
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c96
9 files changed, 102 insertions, 65 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index bd85e311c51b..7c8409e53598 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -602,6 +602,8 @@ struct ath_softc {
struct completion paprd_complete;
bool paprd_pending;
+ unsigned int hw_busy_count;
+
u32 intrstatus;
u32 sc_flags; /* SC_OP_* */
u16 ps_flags; /* PS_* */
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 87ba44c06692..fcb36abfc309 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -721,8 +721,9 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
cur_conf->beacon_interval = 100;
/*
- * Some times we dont parse dtim period from mac80211, in that case
- * use a default value
+ * We don't parse dtim period from mac80211 during the driver
+ * initialization as it breaks association with hidden-ssid
+ * AP and it causes latency in roaming
*/
if (cur_conf->dtim_period == 0)
cur_conf->dtim_period = 1;
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index df1998d48253..615e68276e72 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -189,6 +189,17 @@ void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
}
EXPORT_SYMBOL(ath9k_cmn_btcoex_bt_stomp);
+void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
+ u16 new_txpow, u16 *txpower)
+{
+ if (cur_txpow != new_txpow) {
+ ath9k_hw_set_txpowerlimit(ah, new_txpow, false);
+ /* read back in case value is clamped */
+ *txpower = ath9k_hw_regulatory(ah)->power_limit;
+ }
+}
+EXPORT_SYMBOL(ath9k_cmn_update_txpow);
+
static int __init ath9k_cmn_init(void)
{
return 0;
diff --git a/drivers/net/wireless/ath/ath9k/common.h b/drivers/net/wireless/ath/ath9k/common.h
index 4c7020b3a5a0..b2f7b5f89097 100644
--- a/drivers/net/wireless/ath/ath9k/common.h
+++ b/drivers/net/wireless/ath/ath9k/common.h
@@ -68,3 +68,5 @@ struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
int ath9k_cmn_count_streams(unsigned int chainmask, int max);
void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
enum ath_stomp_type stomp_type);
+void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
+ u16 new_txpow, u16 *txpower);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 9cdc41b0ec44..5cfcf8c235a4 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -381,21 +381,40 @@ static const struct file_operations fops_interrupt = {
.llseek = default_llseek,
};
+static const char *channel_type_str(enum nl80211_channel_type t)
+{
+ switch (t) {
+ case NL80211_CHAN_NO_HT:
+ return "no ht";
+ case NL80211_CHAN_HT20:
+ return "ht20";
+ case NL80211_CHAN_HT40MINUS:
+ return "ht40-";
+ case NL80211_CHAN_HT40PLUS:
+ return "ht40+";
+ default:
+ return "???";
+ }
+}
+
static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ieee80211_channel *chan = sc->hw->conf.channel;
+ struct ieee80211_conf *conf = &(sc->hw->conf);
char buf[512];
unsigned int len = 0;
u8 addr[ETH_ALEN];
u32 tmp;
len += snprintf(buf + len, sizeof(buf) - len,
- "%s (chan=%d ht=%d)\n",
+ "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n",
wiphy_name(sc->hw->wiphy),
ieee80211_frequency_to_channel(chan->center_freq),
- conf_is_ht(&sc->hw->conf));
+ chan->center_freq,
+ conf->channel_type,
+ channel_type_str(conf->channel_type));
put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 63549868e686..0cb504d7b8c4 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -460,7 +460,6 @@ void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
void ath9k_ps_work(struct work_struct *work);
bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
enum ath9k_power_mode mode);
-void ath_update_txpow(struct ath9k_htc_priv *priv);
void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
index fe70f67aa088..7e630a81b453 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
@@ -389,7 +389,8 @@ void ath9k_htc_radio_enable(struct ieee80211_hw *hw)
ret, ah->curchan->channel);
}
- ath_update_txpow(priv);
+ ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+ &priv->curtxpow);
/* Start RX */
WMI_CMD(WMI_START_RECV_CMDID);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index a702089f18d0..953036a4ed53 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -24,17 +24,6 @@ static struct dentry *ath9k_debugfs_root;
/* Utilities */
/*************/
-void ath_update_txpow(struct ath9k_htc_priv *priv)
-{
- struct ath_hw *ah = priv->ah;
-
- if (priv->curtxpow != priv->txpowlimit) {
- ath9k_hw_set_txpowerlimit(ah, priv->txpowlimit, false);
- /* read back in case value is clamped */
- priv->curtxpow = ath9k_hw_regulatory(ah)->power_limit;
- }
-}
-
/* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */
static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
struct ath9k_channel *ichan)
@@ -147,7 +136,8 @@ void ath9k_htc_reset(struct ath9k_htc_priv *priv)
channel->center_freq, ret);
}
- ath_update_txpow(priv);
+ ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+ &priv->curtxpow);
WMI_CMD(WMI_START_RECV_CMDID);
ath9k_host_rx_init(priv);
@@ -212,7 +202,8 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
goto err;
}
- ath_update_txpow(priv);
+ ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+ &priv->curtxpow);
WMI_CMD(WMI_START_RECV_CMDID);
if (ret)
@@ -988,7 +979,8 @@ static int ath9k_htc_start(struct ieee80211_hw *hw)
return ret;
}
- ath_update_txpow(priv);
+ ath9k_cmn_update_txpow(ah, priv->curtxpow, priv->txpowlimit,
+ &priv->curtxpow);
mode = ath9k_htc_get_curmode(priv, init_channel);
htc_mode = cpu_to_be16(mode);
@@ -1052,6 +1044,7 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw)
cancel_work_sync(&priv->fatal_work);
cancel_work_sync(&priv->ps_work);
cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
+ cancel_delayed_work_sync(&priv->ath9k_ani_work);
ath9k_led_stop_brightness(priv);
mutex_lock(&priv->mutex);
@@ -1253,7 +1246,8 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_POWER) {
priv->txpowlimit = 2 * conf->power_level;
- ath_update_txpow(priv);
+ ath9k_cmn_update_txpow(priv->ah, priv->curtxpow,
+ priv->txpowlimit, &priv->curtxpow);
}
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 1447b55a8d0a..2d4e9b861b60 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -18,17 +18,6 @@
#include "ath9k.h"
#include "btcoex.h"
-static void ath_update_txpow(struct ath_softc *sc)
-{
- struct ath_hw *ah = sc->sc_ah;
-
- if (sc->curtxpow != sc->config.txpowlimit) {
- ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit, false);
- /* read back in case value is clamped */
- sc->curtxpow = ath9k_hw_regulatory(ah)->power_limit;
- }
-}
-
static u8 parse_mpdudensity(u8 mpdudensity)
{
/*
@@ -64,19 +53,6 @@ static u8 parse_mpdudensity(u8 mpdudensity)
}
}
-static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc,
- struct ieee80211_hw *hw)
-{
- struct ieee80211_channel *curchan = hw->conf.channel;
- struct ath9k_channel *channel;
- u8 chan_idx;
-
- chan_idx = curchan->hw_value;
- channel = &sc->sc_ah->channels[chan_idx];
- ath9k_cmn_update_ichannel(channel, curchan, hw->conf.channel_type);
- return channel;
-}
-
bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
{
unsigned long flags;
@@ -177,7 +153,12 @@ static void ath_update_survey_nf(struct ath_softc *sc, int channel)
}
}
-static void ath_update_survey_stats(struct ath_softc *sc)
+/*
+ * Updates the survey statistics and returns the busy time since last
+ * update in %, if the measurement duration was long enough for the
+ * result to be useful, -1 otherwise.
+ */
+static int ath_update_survey_stats(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
@@ -185,9 +166,10 @@ static void ath_update_survey_stats(struct ath_softc *sc)
struct survey_info *survey = &sc->survey[pos];
struct ath_cycle_counters *cc = &common->cc_survey;
unsigned int div = common->clockrate * 1000;
+ int ret = 0;
if (!ah->curchan)
- return;
+ return -1;
if (ah->power_mode == ATH9K_PM_AWAKE)
ath_hw_cycle_counters_update(common);
@@ -202,9 +184,18 @@ static void ath_update_survey_stats(struct ath_softc *sc)
survey->channel_time_rx += cc->rx_frame / div;
survey->channel_time_tx += cc->tx_frame / div;
}
+
+ if (cc->cycles < div)
+ return -1;
+
+ if (cc->cycles > 0)
+ ret = cc->rx_busy * 100 / cc->cycles;
+
memset(cc, 0, sizeof(*cc));
ath_update_survey_nf(sc, pos);
+
+ return ret;
}
/*
@@ -226,6 +217,8 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
if (sc->sc_flags & SC_OP_INVALID)
return -EIO;
+ sc->hw_busy_count = 0;
+
del_timer_sync(&common->ani.timer);
cancel_work_sync(&sc->paprd_work);
cancel_work_sync(&sc->hw_check_work);
@@ -284,7 +277,8 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
goto ps_restore;
}
- ath_update_txpow(sc);
+ ath9k_cmn_update_txpow(ah, sc->curtxpow,
+ sc->config.txpowlimit, &sc->curtxpow);
ath9k_hw_set_interrupts(ah, ah->imask);
if (!(sc->sc_flags & (SC_OP_OFFCHANNEL))) {
@@ -592,17 +586,25 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
void ath_hw_check(struct work_struct *work)
{
struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work);
- int i;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ unsigned long flags;
+ int busy;
ath9k_ps_wakeup(sc);
+ if (ath9k_hw_check_alive(sc->sc_ah))
+ goto out;
- for (i = 0; i < 3; i++) {
- if (ath9k_hw_check_alive(sc->sc_ah))
- goto out;
+ spin_lock_irqsave(&common->cc_lock, flags);
+ busy = ath_update_survey_stats(sc);
+ spin_unlock_irqrestore(&common->cc_lock, flags);
- msleep(1);
- }
- ath_reset(sc, true);
+ ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
+ "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
+ if (busy >= 99) {
+ if (++sc->hw_busy_count >= 3)
+ ath_reset(sc, true);
+ } else if (busy >= 0)
+ sc->hw_busy_count = 0;
out:
ath9k_ps_restore(sc);
@@ -867,7 +869,7 @@ void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw)
ath9k_hw_configpcipowersave(ah, 0, 0);
if (!ah->curchan)
- ah->curchan = ath_get_curchannel(sc, sc->hw);
+ ah->curchan = ath9k_cmn_get_curchannel(sc->hw, ah);
r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
if (r) {
@@ -876,7 +878,8 @@ void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw)
channel->center_freq, r);
}
- ath_update_txpow(sc);
+ ath9k_cmn_update_txpow(ah, sc->curtxpow,
+ sc->config.txpowlimit, &sc->curtxpow);
if (ath_startrecv(sc) != 0) {
ath_err(common, "Unable to restart recv logic\n");
goto out;
@@ -928,7 +931,7 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw)
ath_flushrecv(sc); /* flush recv queue */
if (!ah->curchan)
- ah->curchan = ath_get_curchannel(sc, hw);
+ ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
if (r) {
@@ -952,6 +955,8 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
struct ieee80211_hw *hw = sc->hw;
int r;
+ sc->hw_busy_count = 0;
+
/* Stop ANI */
del_timer_sync(&common->ani.timer);
@@ -979,7 +984,8 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
* that changes the channel so update any state that
* might change as a result.
*/
- ath_update_txpow(sc);
+ ath9k_cmn_update_txpow(ah, sc->curtxpow,
+ sc->config.txpowlimit, &sc->curtxpow);
if ((sc->sc_flags & SC_OP_BEACONS) || !(sc->sc_flags & (SC_OP_OFFCHANNEL)))
ath_beacon_config(sc, NULL); /* restart beacons */
@@ -1029,7 +1035,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
/* setup initial channel */
sc->chan_idx = curchan->hw_value;
- init_channel = ath_get_curchannel(sc, hw);
+ init_channel = ath9k_cmn_get_curchannel(hw, ah);
/* Reset SERDES registers */
ath9k_hw_configpcipowersave(ah, 0, 0);
@@ -1055,7 +1061,8 @@ static int ath9k_start(struct ieee80211_hw *hw)
* This is needed only to setup initial state
* but it's best done after a reset.
*/
- ath_update_txpow(sc);
+ ath9k_cmn_update_txpow(ah, sc->curtxpow,
+ sc->config.txpowlimit, &sc->curtxpow);
/*
* Setup the hardware after reset:
@@ -1374,6 +1381,7 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
ath9k_calculate_iter_data(hw, vif, &iter_data);
+ ath9k_ps_wakeup(sc);
/* Set BSSID mask. */
memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
ath_hw_setbssidmask(common);
@@ -1408,6 +1416,7 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
}
ath9k_hw_set_interrupts(ah, ah->imask);
+ ath9k_ps_restore(sc);
/* Set up ANI */
if ((iter_data.naps + iter_data.nadhocs) > 0) {
@@ -1437,9 +1446,7 @@ static void ath9k_do_vif_add_setup(struct ieee80211_hw *hw,
* there.
*/
error = ath_beacon_alloc(sc, vif);
- if (error)
- ath9k_reclaim_beacon(sc, vif);
- else
+ if (!error)
ath_beacon_config(sc, vif);
}
}
@@ -1720,7 +1727,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_POWER) {
sc->config.txpowlimit = 2 * conf->power_level;
ath9k_ps_wakeup(sc);
- ath_update_txpow(sc);
+ ath9k_cmn_update_txpow(ah, sc->curtxpow,
+ sc->config.txpowlimit, &sc->curtxpow);
ath9k_ps_restore(sc);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.