1 files changed, 61 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c
index d8db412b76c6..93dfb76cd8a6 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_event.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c
@@ -584,6 +584,62 @@ void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
 		adapter->coex_rx_win_size);
 }
 
+static void
+mwifiex_fw_dump_info_event(struct mwifiex_private *priv,
+			   struct sk_buff *event_skb)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_fw_dump_header *fw_dump_hdr =
+				(void *)adapter->event_body;
+
+	if (adapter->iface_type != MWIFIEX_USB) {
+		mwifiex_dbg(adapter, MSG,
+			    "event is not on usb interface, ignore it\n");
+		return;
+	}
+
+	if (!adapter->devdump_data) {
+		/* When receive the first event, allocate device dump
+		 * buffer, dump driver info.
+		 */
+		adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
+		if (!adapter->devdump_data) {
+			mwifiex_dbg(adapter, ERROR,
+				    "vzalloc devdump data failure!\n");
+			return;
+		}
+
+		mwifiex_drv_info_dump(adapter);
+
+		/* If no proceeded event arrive in 10s, upload device
+		 * dump data, this will be useful if the end of
+		 * transmission event get lost, in this cornel case,
+		 * user would still get partial of the dump.
+		 */
+		mod_timer(&adapter->devdump_timer,
+			  jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
+	}
+
+	/* Overflow check */
+	if (adapter->devdump_len + event_skb->len >= MWIFIEX_FW_DUMP_SIZE)
+		goto upload_dump;
+
+	memmove(adapter->devdump_data + adapter->devdump_len,
+		adapter->event_skb->data, event_skb->len);
+	adapter->devdump_len += event_skb->len;
+
+	if (le16_to_cpu(fw_dump_hdr->type == FW_DUMP_INFO_ENDED)) {
+		mwifiex_dbg(adapter, MSG,
+			    "receive end of transmission flag event!\n");
+		goto upload_dump;
+	}
+	return;
+
+upload_dump:
+	del_timer_sync(&adapter->devdump_timer);
+	mwifiex_upload_device_dump(adapter);
+}
+
 /*
  * This function handles events generated by firmware.
  *
@@ -636,6 +692,7 @@ void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
  *      - EVENT_DELBA
  *      - EVENT_BA_STREAM_TIEMOUT
  *      - EVENT_AMSDU_AGGR_CTRL
+ *      - EVENT_FW_DUMP_INFO
  */
 int mwifiex_process_sta_event(struct mwifiex_private *priv)
 {
@@ -1007,6 +1064,10 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 					    adapter->event_skb->len -
 					    sizeof(eventcause));
 		break;
+	case EVENT_FW_DUMP_INFO:
+		mwifiex_dbg(adapter, EVENT, "event: firmware debug info\n");
+		mwifiex_fw_dump_info_event(priv, adapter->event_skb);
+		break;
 	/* Debugging event; not used, but let's not print an ERROR for it. */
 	case EVENT_UNKNOWN_DEBUG:
 		mwifiex_dbg(adapter, EVENT, "event: debug\n");