From: Zhu Yi <yi.zhu@xxxxxxxxx>
When the driver receives "connection terminated" event from device,
it could be caused by 2 reasons: the firmware is roaming or the
connection is lost (AP disappears). For the former, an association
complete event is supposed to come within 3 seconds. For the latter,
the driver won't receive any event except the connection terminated.
So we kick a delayed work (5*HZ) when we receive the connection
terminated event. It will be canceled if it turns out to be a roaming
event later. Otherwise we notify SME and userspace the disconnection.
Signed-off-by: Zhu Yi <yi.zhu@xxxxxxxxx>
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
drivers/net/wireless/iwmc3200wifi/iwm.h | 1 +
drivers/net/wireless/iwmc3200wifi/main.c | 21 +++++++++++++++++++
drivers/net/wireless/iwmc3200wifi/rx.c | 32 +++++++++++++++++++++++++----
3 files changed, 49 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/iwmc3200wifi/iwm.h b/drivers/net/wireless/iwmc3200wifi/iwm.h
index f054cc8..da49df6 100644
--- a/drivers/net/wireless/iwmc3200wifi/iwm.h
+++ b/drivers/net/wireless/iwmc3200wifi/iwm.h
@@ -273,6 +273,7 @@ struct iwm_priv {
struct iw_statistics wstats;
struct delayed_work stats_request;
+ struct delayed_work disconnect;
struct iwm_debugfs dbg;
diff --git a/drivers/net/wireless/iwmc3200wifi/main.c b/drivers/net/wireless/iwmc3200wifi/main.c
index cf25744..c41fa8c 100644
--- a/drivers/net/wireless/iwmc3200wifi/main.c
+++ b/drivers/net/wireless/iwmc3200wifi/main.c
@@ -108,6 +108,26 @@ static void iwm_statistics_request(struct work_struct *work)
iwm_send_umac_stats_req(iwm, 0);
}
+static void iwm_disconnect_work(struct work_struct *work)
+{
+ struct iwm_priv *iwm =
+ container_of(work, struct iwm_priv, disconnect.work);
+
+ if (iwm->umac_profile_active)
+ iwm_invalidate_mlme_profile(iwm);
+
+ clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
+ iwm->umac_profile_active = 0;
+ memset(iwm->bssid, 0, ETH_ALEN);
+ iwm->channel = 0;
+
+ iwm_link_off(iwm);
+
+ wake_up_interruptible(&iwm->mlme_queue);
+
+ cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0, GFP_KERNEL);
+}
+
int __iwm_up(struct iwm_priv *iwm);
int __iwm_down(struct iwm_priv *iwm);
@@ -198,6 +218,7 @@ int iwm_priv_init(struct iwm_priv *iwm)
spin_lock_init(&iwm->cmd_lock);
iwm->scan_id = 1;
INIT_DELAYED_WORK(&iwm->stats_request, iwm_statistics_request);
+ INIT_DELAYED_WORK(&iwm->disconnect, iwm_disconnect_work);
INIT_WORK(&iwm->reset_worker, iwm_reset_worker);
INIT_LIST_HEAD(&iwm->bss_list);
diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c
index 9e6f2cd..4d9793e 100644
--- a/drivers/net/wireless/iwmc3200wifi/rx.c
+++ b/drivers/net/wireless/iwmc3200wifi/rx.c
@@ -514,6 +514,7 @@ static int iwm_mlme_assoc_complete(struct iwm_priv *iwm, u8 *buf,
/* Internal roaming state, avoid notifying SME. */
if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status)
&& iwm->conf.mode == UMAC_MODE_BSS) {
+ cancel_delayed_work(&iwm->disconnect);
cfg80211_roamed(iwm_to_ndev(iwm),
complete->bssid,
iwm->req_ie, iwm->req_ie_len,
@@ -540,8 +541,10 @@ static int iwm_mlme_assoc_complete(struct iwm_priv *iwm, u8 *buf,
/* Internal roaming state, avoid notifying SME. */
if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status)
- && iwm->conf.mode == UMAC_MODE_BSS)
+ && iwm->conf.mode == UMAC_MODE_BSS) {
+ cancel_delayed_work(&iwm->disconnect);
break;
+ }
iwm_link_off(iwm);
@@ -569,11 +572,18 @@ static int iwm_mlme_profile_invalidate(struct iwm_priv *iwm, u8 *buf,
struct iwm_wifi_cmd *cmd)
{
struct iwm_umac_notif_profile_invalidate *invalid;
+ u32 reason;
invalid = (struct iwm_umac_notif_profile_invalidate *)buf;
+ reason = le32_to_cpu(invalid->reason);
+
+ IWM_DBG_MLME(iwm, INFO, "Profile Invalidated. Reason: %d\n", reason);
- IWM_DBG_MLME(iwm, INFO, "Profile Invalidated. Reason: %d\n",
- le32_to_cpu(invalid->reason));
+ if (reason != UMAC_PROFILE_INVALID_REQUEST &&
+ test_bit(IWM_STATUS_SME_CONNECTING, &iwm->status))
+ cfg80211_connect_result(iwm_to_ndev(iwm), NULL, NULL, 0, NULL,
+ 0, WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status);
clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
@@ -589,6 +599,19 @@ static int iwm_mlme_profile_invalidate(struct iwm_priv *iwm, u8 *buf,
return 0;
}
+#define IWM_DISCONNECT_INTERVAL (5 * HZ)
+
+static int iwm_mlme_connection_terminated(struct iwm_priv *iwm, u8 *buf,
+ unsigned long buf_size,
+ struct iwm_wifi_cmd *cmd)
+{
+ IWM_DBG_MLME(iwm, DBG, "Connection terminated\n");
+
+ schedule_delayed_work(&iwm->disconnect, IWM_DISCONNECT_INTERVAL);
+
+ return 0;
+}
+
static int iwm_mlme_scan_complete(struct iwm_priv *iwm, u8 *buf,
unsigned long buf_size,
struct iwm_wifi_cmd *cmd)
@@ -848,8 +871,7 @@ static int iwm_ntf_mlme(struct iwm_priv *iwm, u8 *buf,
case WIFI_IF_NTFY_PROFILE_INVALIDATE_COMPLETE:
return iwm_mlme_profile_invalidate(iwm, buf, buf_size, cmd);
case WIFI_IF_NTFY_CONNECTION_TERMINATED:
- IWM_DBG_MLME(iwm, DBG, "Connection terminated\n");
- break;
+ return iwm_mlme_connection_terminated(iwm, buf, buf_size, cmd);
case WIFI_IF_NTFY_SCAN_COMPLETE:
return iwm_mlme_scan_complete(iwm, buf, buf_size, cmd);
case WIFI_IF_NTFY_STA_TABLE_CHANGE:
--
1.6.3.3
--
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