ath9k_htc: Handle FATAL events
The device has to be reset when a FATAL event is received.
Not doing so would leave the card in a non-working state.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 5f75f70..07f10dd 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -116,6 +116,60 @@
ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
}
+void ath9k_htc_reset(struct ath9k_htc_priv *priv)
+{
+ struct ath_hw *ah = priv->ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ieee80211_channel *channel = priv->hw->conf.channel;
+ struct ath9k_hw_cal_data *caldata;
+ enum htc_phymode mode;
+ __be16 htc_mode;
+ u8 cmd_rsp;
+ int ret;
+
+ mutex_lock(&priv->mutex);
+ ath9k_htc_ps_wakeup(priv);
+
+ if (priv->op_flags & OP_ASSOCIATED)
+ cancel_delayed_work_sync(&priv->ath9k_ani_work);
+
+ ieee80211_stop_queues(priv->hw);
+ htc_stop(priv->htc);
+ WMI_CMD(WMI_DISABLE_INTR_CMDID);
+ WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
+ WMI_CMD(WMI_STOP_RECV_CMDID);
+
+ caldata = &priv->caldata[channel->hw_value];
+ ret = ath9k_hw_reset(ah, ah->curchan, caldata, false);
+ if (ret) {
+ ath_err(common,
+ "Unable to reset device (%u Mhz) reset status %d\n",
+ channel->center_freq, ret);
+ }
+
+ ath_update_txpow(priv);
+
+ WMI_CMD(WMI_START_RECV_CMDID);
+ ath9k_host_rx_init(priv);
+
+ mode = ath9k_htc_get_curmode(priv, ah->curchan);
+ htc_mode = cpu_to_be16(mode);
+ WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
+
+ WMI_CMD(WMI_ENABLE_INTR_CMDID);
+ htc_start(priv->htc);
+
+ if (priv->op_flags & OP_ASSOCIATED) {
+ ath9k_htc_beacon_config(priv, priv->vif);
+ ath_start_ani(priv);
+ }
+
+ ieee80211_wake_queues(priv->hw);
+
+ ath9k_htc_ps_restore(priv);
+ mutex_unlock(&priv->mutex);
+}
+
static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw,
struct ath9k_channel *hchan)
@@ -690,7 +744,7 @@
/* ANI */
/*******/
-static void ath_start_ani(struct ath9k_htc_priv *priv)
+void ath_start_ani(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
unsigned long timestamp = jiffies_to_msecs(jiffies);
@@ -1219,6 +1273,7 @@
u8 cmd_rsp;
/* Cancel all the running timers/work .. */
+ cancel_work_sync(&priv->fatal_work);
cancel_work_sync(&priv->ps_work);
cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
ath9k_led_stop_brightness(priv);