qcacmn: Introduce QCA_NL80211_VENDOR_SUBCMD_UPDATE_STA_INFO

This acts as a vendor event and is used to update the information
of a station from the driver to userspace.

Add an attribute for the driver to update the channels scanned in
the last connect/roam attempt.

Change-Id: I3e87292d6ef00c0242cb583183de2b441352c8a5
CRs-Fixed: 2622092

os_if/linux/qca_vendor.h

@@ -377,6 +377,10 @@
  *	user space for the SAR power limits configuration from user space. If
  *	the driver does not get the SAR power limits from user space for all
  *	the retried attempts, it can configure a default SAR power limit.
+ * @QCA_NL80211_VENDOR_SUBCMD_UPDATE_STA_INFO: This acts as a vendor event and
+ *	is used to update the information about the station from the driver to
+ *	userspace. Uses attributes from enum
+ *	qca_wlan_vendor_attr_update_sta_info.
  */
 
 enum qca_nl80211_vendor_subcmds {
@@ -597,6 +601,7 @@ enum qca_nl80211_vendor_subcmds {
 	QCA_NL80211_VENDOR_SUBCMD_ADD_STA_NODE = 184,
 	QCA_NL80211_VENDOR_SUBCMD_BTC_CHAIN_MODE = 185,
 	QCA_NL80211_VENDOR_SUBCMD_GET_SAR_LIMITS_EVENT = 187,
+	QCA_NL80211_VENDOR_SUBCMD_UPDATE_STA_INFO = 188,
 };
 
 enum qca_wlan_vendor_tos {
@@ -720,6 +725,29 @@ enum qca_wlan_vendor_attr_get_station {
 		QCA_WLAN_VENDOR_ATTR_GET_STATION_AFTER_LAST - 1,
 };
 
+/**
+ * enum qca_wlan_vendor_attr_update_sta_info - Defines attributes
+ * used by QCA_NL80211_VENDOR_SUBCMD_UPDATE_STA_INFO vendor command.
+ *
+ * @QCA_WLAN_VENDOR_ATTR_UPDATE_STA_INFO_CONNECT_CHANNELS: Type is NLA_UNSPEC.
+ * Used in STA mode. This attribute represents the list of channel center
+ * frequencies in MHz (u32) the station has learnt during the last connection
+ * or roaming attempt. This information shall not signify the channels for
+ * an explicit scan request from the user space. Host drivers can update this
+ * information to the user space in both connected and disconnected state.
+ * In the disconnected state this information shall signify the channels
+ * scanned in the last connection/roam attempt that lead to the disconnection.
+ */
+enum qca_wlan_vendor_attr_update_sta_info {
+	QCA_WLAN_VENDOR_ATTR_UPDATE_STA_INFO_INVALID = 0,
+	QCA_WLAN_VENDOR_ATTR_UPDATE_STA_INFO_CONNECT_CHANNELS = 1,
+
+	/* keep last */
+	QCA_WLAN_VENDOR_ATTR_UPDATE_STA_INFO_AFTER_LAST,
+	QCA_WLAN_VENDOR_ATTR_UPDATE_STA_INFO_MAX =
+		QCA_WLAN_VENDOR_ATTR_UPDATE_STA_INFO_AFTER_LAST - 1,
+};
+
 /**
  * enum qca_wlan_802_11_mode - dot11 mode
  * @QCA_WLAN_802_11_MODE_11B: mode B
@@ -1034,6 +1062,7 @@ enum qca_nl80211_vendor_subcmds_index {
 	QCA_NL80211_VENDOR_SUBCMD_ROAM_INDEX,
 	QCA_NL80211_VENDOR_SUBCMD_OEM_DATA_INDEX,
 	QCA_NL80211_VENDOR_SUBCMD_REQUEST_SAR_LIMITS_INDEX,
+	QCA_NL80211_VENDOR_SUBCMD_UPDATE_STA_INFO_INDEX,
 };
 
 /**