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authorVasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>2012-08-29 19:40:26 +0530
committerKalle Valo <kvalo@qca.qualcomm.com>2012-10-24 11:49:48 +0300
commit84caf8005b09e0a4a57fce44119489d1b0bbbe94 (patch)
tree073cc27545956f8f4e4bd38119d974d015459b63 /drivers/net/wireless/ath/ath6kl/cfg80211.c
parentede615d2f043539e23bc4022955dbe0c3ec70ca2 (diff)
downloadlinux-84caf8005b09e0a4a57fce44119489d1b0bbbe94.tar.bz2
ath6kl: Recover from fw crash
Re-initialize the target when fw crash is reported. This would make the device functional again after target crash. During the target re-initialization it is made sure that target is not bugged with data/cmd request, ar->state ATH6KL_STATE_RECOVERY is used for this purpose. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/cfg80211.c')
-rw-r--r--drivers/net/wireless/ath/ath6kl/cfg80211.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index b58878648d22..8cf146b5c57f 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2503,14 +2503,23 @@ static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
{
struct ath6kl *ar = wiphy_priv(wiphy);
+ ath6kl_recovery_suspend(ar);
+
return ath6kl_hif_suspend(ar, wow);
}
static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
{
struct ath6kl *ar = wiphy_priv(wiphy);
+ int err;
+
+ err = ath6kl_hif_resume(ar);
+ if (err)
+ return err;
- return ath6kl_hif_resume(ar);
+ ar->fw_recovery.enable = true;
+
+ return 0;
}
/*
@@ -3434,6 +3443,10 @@ void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
clear_bit(CONNECTED, &vif->flags);
clear_bit(CONNECT_PEND, &vif->flags);
+ /* Stop netdev queues, needed during recovery */
+ netif_stop_queue(vif->ndev);
+ netif_carrier_off(vif->ndev);
+
/* disable scanning */
if (ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
@@ -3447,7 +3460,7 @@ void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
struct ath6kl_vif *vif;
vif = ath6kl_vif_first(ar);
- if (!vif) {
+ if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
/* save the current power mode before enabling power save */
ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;