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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/net/wireless/mwifiex/sta_event.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/net/wireless/mwifiex/sta_event.c')
-rw-r--r--kernel/drivers/net/wireless/mwifiex/sta_event.c535
1 files changed, 535 insertions, 0 deletions
diff --git a/kernel/drivers/net/wireless/mwifiex/sta_event.c b/kernel/drivers/net/wireless/mwifiex/sta_event.c
new file mode 100644
index 000000000..0dc7a1d39
--- /dev/null
+++ b/kernel/drivers/net/wireless/mwifiex/sta_event.c
@@ -0,0 +1,535 @@
+/*
+ * Marvell Wireless LAN device driver: station event handling
+ *
+ * Copyright (C) 2011-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.h"
+
+/*
+ * This function resets the connection state.
+ *
+ * The function is invoked after receiving a disconnect event from firmware,
+ * and performs the following actions -
+ * - Set media status to disconnected
+ * - Clean up Tx and Rx packets
+ * - Resets SNR/NF/RSSI value in driver
+ * - Resets security configurations in driver
+ * - Enables auto data rate
+ * - Saves the previous SSID and BSSID so that they can
+ * be used for re-association, if required
+ * - Erases current SSID and BSSID information
+ * - Sends a disconnect event to upper layers/applications.
+ */
+void
+mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+
+ if (!priv->media_connected)
+ return;
+
+ dev_dbg(adapter->dev, "info: handles disconnect event\n");
+
+ priv->media_connected = false;
+
+ priv->scan_block = false;
+
+ if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
+ ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) {
+ mwifiex_disable_all_tdls_links(priv);
+
+ if (priv->adapter->auto_tdls)
+ mwifiex_clean_auto_tdls(priv);
+ }
+
+ /* Free Tx and Rx packets, report disconnect to upper layer */
+ mwifiex_clean_txrx(priv);
+
+ /* Reset SNR/NF/RSSI values */
+ priv->data_rssi_last = 0;
+ priv->data_nf_last = 0;
+ priv->data_rssi_avg = 0;
+ priv->data_nf_avg = 0;
+ priv->bcn_rssi_last = 0;
+ priv->bcn_nf_last = 0;
+ priv->bcn_rssi_avg = 0;
+ priv->bcn_nf_avg = 0;
+ priv->rxpd_rate = 0;
+ priv->rxpd_htinfo = 0;
+ priv->sec_info.wpa_enabled = false;
+ priv->sec_info.wpa2_enabled = false;
+ priv->wpa_ie_len = 0;
+
+ priv->sec_info.wapi_enabled = false;
+ priv->wapi_ie_len = 0;
+ priv->sec_info.wapi_key_on = false;
+
+ priv->sec_info.encryption_mode = 0;
+
+ /* Enable auto data rate */
+ priv->is_data_rate_auto = true;
+ priv->data_rate = 0;
+
+ if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
+ GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && priv->hist_data)
+ mwifiex_hist_data_reset(priv);
+
+ if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
+ priv->adhoc_state = ADHOC_IDLE;
+ priv->adhoc_is_link_sensed = false;
+ }
+
+ /*
+ * Memorize the previous SSID and BSSID so
+ * it could be used for re-assoc
+ */
+
+ dev_dbg(adapter->dev, "info: previous SSID=%s, SSID len=%u\n",
+ priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
+
+ dev_dbg(adapter->dev, "info: current SSID=%s, SSID len=%u\n",
+ priv->curr_bss_params.bss_descriptor.ssid.ssid,
+ priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
+
+ memcpy(&priv->prev_ssid,
+ &priv->curr_bss_params.bss_descriptor.ssid,
+ sizeof(struct cfg80211_ssid));
+
+ memcpy(priv->prev_bssid,
+ priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
+
+ /* Need to erase the current SSID and BSSID info */
+ memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
+
+ adapter->tx_lock_flag = false;
+ adapter->pps_uapsd_mode = false;
+
+ if (adapter->is_cmd_timedout && adapter->curr_cmd)
+ return;
+ priv->media_connected = false;
+ dev_dbg(adapter->dev,
+ "info: successfully disconnected from %pM: reason code %d\n",
+ priv->cfg_bssid, reason_code);
+ if (priv->bss_mode == NL80211_IFTYPE_STATION ||
+ priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
+ cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
+ GFP_KERNEL);
+ }
+ eth_zero_addr(priv->cfg_bssid);
+
+ mwifiex_stop_net_dev_queue(priv->netdev, adapter);
+ if (netif_carrier_ok(priv->netdev))
+ netif_carrier_off(priv->netdev);
+}
+
+static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
+ struct sk_buff *event_skb)
+{
+ int ret = 0;
+ struct mwifiex_adapter *adapter = priv->adapter;
+ struct mwifiex_sta_node *sta_ptr;
+ struct mwifiex_tdls_generic_event *tdls_evt =
+ (void *)event_skb->data + sizeof(adapter->event_cause);
+
+ /* reserved 2 bytes are not mandatory in tdls event */
+ if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) -
+ sizeof(u16) - sizeof(adapter->event_cause))) {
+ dev_err(adapter->dev, "Invalid event length!\n");
+ return -1;
+ }
+
+ sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac);
+ if (!sta_ptr) {
+ dev_err(adapter->dev, "cannot get sta entry!\n");
+ return -1;
+ }
+
+ switch (le16_to_cpu(tdls_evt->type)) {
+ case TDLS_EVENT_LINK_TEAR_DOWN:
+ cfg80211_tdls_oper_request(priv->netdev,
+ tdls_evt->peer_mac,
+ NL80211_TDLS_TEARDOWN,
+ le16_to_cpu(tdls_evt->u.reason_code),
+ GFP_KERNEL);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * This function handles events generated by firmware.
+ *
+ * This is a generic function and handles all events.
+ *
+ * Event specific routines are called by this function based
+ * upon the generated event cause.
+ *
+ * For the following events, the function just forwards them to upper
+ * layers, optionally recording the change -
+ * - EVENT_LINK_SENSED
+ * - EVENT_MIC_ERR_UNICAST
+ * - EVENT_MIC_ERR_MULTICAST
+ * - EVENT_PORT_RELEASE
+ * - EVENT_RSSI_LOW
+ * - EVENT_SNR_LOW
+ * - EVENT_MAX_FAIL
+ * - EVENT_RSSI_HIGH
+ * - EVENT_SNR_HIGH
+ * - EVENT_DATA_RSSI_LOW
+ * - EVENT_DATA_SNR_LOW
+ * - EVENT_DATA_RSSI_HIGH
+ * - EVENT_DATA_SNR_HIGH
+ * - EVENT_LINK_QUALITY
+ * - EVENT_PRE_BEACON_LOST
+ * - EVENT_IBSS_COALESCED
+ * - EVENT_WEP_ICV_ERR
+ * - EVENT_BW_CHANGE
+ * - EVENT_HOSTWAKE_STAIE
+ *
+ * For the following events, no action is taken -
+ * - EVENT_MIB_CHANGED
+ * - EVENT_INIT_DONE
+ * - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
+ *
+ * Rest of the supported events requires driver handling -
+ * - EVENT_DEAUTHENTICATED
+ * - EVENT_DISASSOCIATED
+ * - EVENT_LINK_LOST
+ * - EVENT_PS_SLEEP
+ * - EVENT_PS_AWAKE
+ * - EVENT_DEEP_SLEEP_AWAKE
+ * - EVENT_HS_ACT_REQ
+ * - EVENT_ADHOC_BCN_LOST
+ * - EVENT_BG_SCAN_REPORT
+ * - EVENT_WMM_STATUS_CHANGE
+ * - EVENT_ADDBA
+ * - EVENT_DELBA
+ * - EVENT_BA_STREAM_TIEMOUT
+ * - EVENT_AMSDU_AGGR_CTRL
+ */
+int mwifiex_process_sta_event(struct mwifiex_private *priv)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ int ret = 0;
+ u32 eventcause = adapter->event_cause;
+ u16 ctrl, reason_code;
+
+ switch (eventcause) {
+ case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
+ dev_err(adapter->dev,
+ "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
+ break;
+ case EVENT_LINK_SENSED:
+ dev_dbg(adapter->dev, "event: LINK_SENSED\n");
+ if (!netif_carrier_ok(priv->netdev))
+ netif_carrier_on(priv->netdev);
+ mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
+ break;
+
+ case EVENT_DEAUTHENTICATED:
+ dev_dbg(adapter->dev, "event: Deauthenticated\n");
+ if (priv->wps.session_enable) {
+ dev_dbg(adapter->dev,
+ "info: receive deauth event in wps session\n");
+ break;
+ }
+ adapter->dbg.num_event_deauth++;
+ if (priv->media_connected) {
+ reason_code =
+ le16_to_cpu(*(__le16 *)adapter->event_body);
+ mwifiex_reset_connect_state(priv, reason_code);
+ }
+ break;
+
+ case EVENT_DISASSOCIATED:
+ dev_dbg(adapter->dev, "event: Disassociated\n");
+ if (priv->wps.session_enable) {
+ dev_dbg(adapter->dev,
+ "info: receive disassoc event in wps session\n");
+ break;
+ }
+ adapter->dbg.num_event_disassoc++;
+ if (priv->media_connected) {
+ reason_code =
+ le16_to_cpu(*(__le16 *)adapter->event_body);
+ mwifiex_reset_connect_state(priv, reason_code);
+ }
+ break;
+
+ case EVENT_LINK_LOST:
+ dev_dbg(adapter->dev, "event: Link lost\n");
+ adapter->dbg.num_event_link_lost++;
+ if (priv->media_connected) {
+ reason_code =
+ le16_to_cpu(*(__le16 *)adapter->event_body);
+ mwifiex_reset_connect_state(priv, reason_code);
+ }
+ break;
+
+ case EVENT_PS_SLEEP:
+ dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
+
+ adapter->ps_state = PS_STATE_PRE_SLEEP;
+
+ mwifiex_check_ps_cond(adapter);
+ break;
+
+ case EVENT_PS_AWAKE:
+ dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
+ if (!adapter->pps_uapsd_mode &&
+ priv->media_connected && adapter->sleep_period.period) {
+ adapter->pps_uapsd_mode = true;
+ dev_dbg(adapter->dev,
+ "event: PPS/UAPSD mode activated\n");
+ }
+ adapter->tx_lock_flag = false;
+ if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
+ if (mwifiex_check_last_packet_indication(priv)) {
+ if (adapter->data_sent) {
+ adapter->ps_state = PS_STATE_AWAKE;
+ adapter->pm_wakeup_card_req = false;
+ adapter->pm_wakeup_fw_try = false;
+ del_timer(&adapter->wakeup_timer);
+ break;
+ }
+ if (!mwifiex_send_null_packet
+ (priv,
+ MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
+ MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
+ adapter->ps_state =
+ PS_STATE_SLEEP;
+ return 0;
+ }
+ }
+ adapter->ps_state = PS_STATE_AWAKE;
+ adapter->pm_wakeup_card_req = false;
+ adapter->pm_wakeup_fw_try = false;
+ del_timer(&adapter->wakeup_timer);
+
+ break;
+
+ case EVENT_DEEP_SLEEP_AWAKE:
+ adapter->if_ops.wakeup_complete(adapter);
+ dev_dbg(adapter->dev, "event: DS_AWAKE\n");
+ if (adapter->is_deep_sleep)
+ adapter->is_deep_sleep = false;
+ break;
+
+ case EVENT_HS_ACT_REQ:
+ dev_dbg(adapter->dev, "event: HS_ACT_REQ\n");
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
+ 0, 0, NULL, false);
+ break;
+
+ case EVENT_MIC_ERR_UNICAST:
+ dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
+ cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
+ NL80211_KEYTYPE_PAIRWISE,
+ -1, NULL, GFP_KERNEL);
+ break;
+
+ case EVENT_MIC_ERR_MULTICAST:
+ dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
+ cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
+ NL80211_KEYTYPE_GROUP,
+ -1, NULL, GFP_KERNEL);
+ break;
+ case EVENT_MIB_CHANGED:
+ case EVENT_INIT_DONE:
+ break;
+
+ case EVENT_ADHOC_BCN_LOST:
+ dev_dbg(adapter->dev, "event: ADHOC_BCN_LOST\n");
+ priv->adhoc_is_link_sensed = false;
+ mwifiex_clean_txrx(priv);
+ mwifiex_stop_net_dev_queue(priv->netdev, adapter);
+ if (netif_carrier_ok(priv->netdev))
+ netif_carrier_off(priv->netdev);
+ break;
+
+ case EVENT_BG_SCAN_REPORT:
+ dev_dbg(adapter->dev, "event: BGS_REPORT\n");
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
+ HostCmd_ACT_GEN_GET, 0, NULL, false);
+ break;
+
+ case EVENT_PORT_RELEASE:
+ dev_dbg(adapter->dev, "event: PORT RELEASE\n");
+ break;
+
+ case EVENT_EXT_SCAN_REPORT:
+ dev_dbg(adapter->dev, "event: EXT_SCAN Report\n");
+ if (adapter->ext_scan)
+ ret = mwifiex_handle_event_ext_scan_report(priv,
+ adapter->event_skb->data);
+
+ break;
+
+ case EVENT_WMM_STATUS_CHANGE:
+ dev_dbg(adapter->dev, "event: WMM status changed\n");
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
+ 0, 0, NULL, false);
+ break;
+
+ case EVENT_RSSI_LOW:
+ cfg80211_cqm_rssi_notify(priv->netdev,
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
+ GFP_KERNEL);
+ mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
+ HostCmd_ACT_GEN_GET, 0, NULL, false);
+ priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
+ dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
+ break;
+ case EVENT_SNR_LOW:
+ dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
+ break;
+ case EVENT_MAX_FAIL:
+ dev_dbg(adapter->dev, "event: MAX_FAIL\n");
+ break;
+ case EVENT_RSSI_HIGH:
+ cfg80211_cqm_rssi_notify(priv->netdev,
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
+ GFP_KERNEL);
+ mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
+ HostCmd_ACT_GEN_GET, 0, NULL, false);
+ priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
+ dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
+ break;
+ case EVENT_SNR_HIGH:
+ dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
+ break;
+ case EVENT_DATA_RSSI_LOW:
+ dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
+ break;
+ case EVENT_DATA_SNR_LOW:
+ dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
+ break;
+ case EVENT_DATA_RSSI_HIGH:
+ dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
+ break;
+ case EVENT_DATA_SNR_HIGH:
+ dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
+ break;
+ case EVENT_LINK_QUALITY:
+ dev_dbg(adapter->dev, "event: Link Quality\n");
+ break;
+ case EVENT_PRE_BEACON_LOST:
+ dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
+ break;
+ case EVENT_IBSS_COALESCED:
+ dev_dbg(adapter->dev, "event: IBSS_COALESCED\n");
+ ret = mwifiex_send_cmd(priv,
+ HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
+ HostCmd_ACT_GEN_GET, 0, NULL, false);
+ break;
+ case EVENT_ADDBA:
+ dev_dbg(adapter->dev, "event: ADDBA Request\n");
+ mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
+ HostCmd_ACT_GEN_SET, 0,
+ adapter->event_body, false);
+ break;
+ case EVENT_DELBA:
+ dev_dbg(adapter->dev, "event: DELBA Request\n");
+ mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
+ break;
+ case EVENT_BA_STREAM_TIEMOUT:
+ dev_dbg(adapter->dev, "event: BA Stream timeout\n");
+ mwifiex_11n_ba_stream_timeout(priv,
+ (struct host_cmd_ds_11n_batimeout
+ *)
+ adapter->event_body);
+ break;
+ case EVENT_AMSDU_AGGR_CTRL:
+ ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
+ dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
+
+ adapter->tx_buf_size =
+ min_t(u16, adapter->curr_tx_buf_size, ctrl);
+ dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
+ adapter->tx_buf_size);
+ break;
+
+ case EVENT_WEP_ICV_ERR:
+ dev_dbg(adapter->dev, "event: WEP ICV error\n");
+ break;
+
+ case EVENT_BW_CHANGE:
+ dev_dbg(adapter->dev, "event: BW Change\n");
+ break;
+
+ case EVENT_HOSTWAKE_STAIE:
+ dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
+ break;
+
+ case EVENT_REMAIN_ON_CHAN_EXPIRED:
+ dev_dbg(adapter->dev, "event: Remain on channel expired\n");
+ cfg80211_remain_on_channel_expired(&priv->wdev,
+ priv->roc_cfg.cookie,
+ &priv->roc_cfg.chan,
+ GFP_ATOMIC);
+
+ memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
+
+ break;
+
+ case EVENT_CHANNEL_SWITCH_ANN:
+ dev_dbg(adapter->dev, "event: Channel Switch Announcement\n");
+ priv->csa_expire_time =
+ jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
+ priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
+ HostCmd_ACT_GEN_SET, 0,
+ priv->curr_bss_params.bss_descriptor.mac_address,
+ false);
+ break;
+
+ case EVENT_TDLS_GENERIC_EVENT:
+ ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
+ break;
+
+ case EVENT_TX_STATUS_REPORT:
+ dev_dbg(adapter->dev, "event: TX_STATUS Report\n");
+ mwifiex_parse_tx_status_event(priv, adapter->event_body);
+ break;
+
+ case EVENT_CHANNEL_REPORT_RDY:
+ dev_dbg(adapter->dev, "event: Channel Report\n");
+ ret = mwifiex_11h_handle_chanrpt_ready(priv,
+ adapter->event_skb);
+ break;
+ case EVENT_RADAR_DETECTED:
+ dev_dbg(adapter->dev, "event: Radar detected\n");
+ ret = mwifiex_11h_handle_radar_detected(priv,
+ adapter->event_skb);
+ break;
+ default:
+ dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
+ eventcause);
+ break;
+ }
+
+ return ret;
+}