qcacld-3.0: Print BTM RSP and initial roam info in kmsg

The event WMI_ROAM_STATS_EVENTID is received after
every roam, once the roam synch complete is sent by the host.
This event contains details regarding the btm response.

This helps in debugging/understanding the scenario when roam
failure happens.

Print the info received related to btm rsp and roam initial
info into kmsg.

Change-Id: Icb2058eed5df3265018b3c53548d123f3a4faf4f
CRs-Fixed: 2728267

components/umac/mlme/connection_mgr/dispatcher/inc/wlan_cm_roam_api.h

@@ -29,6 +29,34 @@
 #include "wlan_mlme_api.h"
 
 #ifdef WLAN_FEATURE_ROAM_OFFLOAD
+/**
+ * wlan_cm_roam_extract_btm_response() - Extract BTM rsp stats
+ * @wmi:       wmi handle
+ * @evt_buf:   Pointer to the event buffer
+ * @dst:       Pointer to destination structure to fill data
+ * @idx:       TLV id
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS
+wlan_cm_roam_extract_btm_response(wmi_unified_t wmi, void *evt_buf,
+				  struct roam_btm_response_data *dst,
+				  uint8_t idx);
+
+/**
+ * wlan_cm_roam_extract_roam_initial_info() - Extract Roam Initial stats
+ * @wmi:       wmi handle
+ * @evt_buf:   Pointer to the event buffer
+ * @dst:       Pointer to destination structure to fill data
+ * @idx:       TLV id
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS
+wlan_cm_roam_extract_roam_initial_info(wmi_unified_t wmi, void *evt_buf,
+				       struct roam_initial_data *dst,
+				       uint8_t idx);
+
 /**
  * wlan_cm_roam_activate_pcl_per_vdev  - Set the PCL command to be sent per
  * vdev instead of pdev.
@@ -114,5 +142,22 @@ static inline void
 wlan_cm_dual_sta_roam_update_connect_channels(struct wlan_objmgr_psoc *psoc,
 					      struct scan_filter *filter)
 {}
+
+static inline QDF_STATUS
+wlan_cm_roam_extract_btm_response(wmi_unified_t wmi, void *evt_buf,
+				  struct roam_btm_response_data *dst,
+				  uint8_t idx)
+{
+	return true;
+}
+
+static inline QDF_STATUS
+wlan_cm_roam_extract_roam_initial_info(wmi_unified_t wmi, void *evt_buf,
+				       struct roam_initial_data *dst,
+				       uint8_t idx)
+{
+	return true;
+}
+
 #endif  /* FEATURE_ROAM_OFFLOAD */
 #endif  /* WLAN_CM_ROAM_API_H__ */

components/umac/mlme/connection_mgr/dispatcher/inc/wlan_cm_roam_public_srtuct.h

@@ -21,9 +21,10 @@
 #ifndef CM_ROAM_PUBLIC_STRUCT_H__
 #define CM_ROAM_PUBLIC_STRUCT_H__
 
-#include "wlan_policy_mgr_public_struct.h"
 #include "wlan_objmgr_cmn.h"
 #include "reg_services_public_struct.h"
+#include "wmi_unified_param.h"
+#include "wmi_unified_sta_param.h"
 
 #if defined(WLAN_FEATURE_HOST_ROAM) || defined(WLAN_FEATURE_ROAM_OFFLOAD)
 /**
@@ -49,6 +50,36 @@ enum roam_offload_state {
 	WLAN_ROAM_SYNCH_IN_PROG,
 };
 
+/**
+ *  struct roam_btm_response_data - BTM response related data
+ *  @present:       Flag to check if the roam btm_rsp tlv is present
+ *  @btm_status:    Btm request status
+ *  @target_bssid:  AP MAC address
+ *  @vsie_reason:   Vsie_reason value
+ */
+struct roam_btm_response_data {
+	bool present;
+	uint32_t btm_status;
+	struct qdf_mac_addr target_bssid;
+	uint32_t vsie_reason;
+};
+
+/**
+ *  struct roam_initial_data - Roam initial related data
+ *  @present:                Flag to check if the roam btm_rsp tlv is present
+ *  @roam_full_scan_count:   Roam full scan count
+ *  @rssi_th:                RSSI threhold
+ *  @cu_th:                  Channel utilization threhold
+ *  @fw_cancel_timer_bitmap: FW timers, which are getting cancelled
+ */
+struct roam_initial_data {
+	bool present;
+	uint32_t roam_full_scan_count;
+	uint32_t rssi_th;
+	uint32_t cu_th;
+	uint32_t fw_cancel_timer_bitmap;
+};
+
 /**
  * enum wlan_cm_rso_control_requestor - Driver disabled roaming requestor that
  * will request the roam module to disable roaming based on the mlme operation

components/umac/mlme/connection_mgr/dispatcher/src/wlan_cm_roam_api.c

@@ -24,8 +24,33 @@
 #include "wlan_vdev_mlme_api.h"
 #include "wlan_mlme_main.h"
 #include "wlan_policy_mgr_api.h"
+#include <wmi_unified_priv.h>
 
 #ifdef WLAN_FEATURE_ROAM_OFFLOAD
+QDF_STATUS
+wlan_cm_roam_extract_btm_response(wmi_unified_t wmi, void *evt_buf,
+				  struct roam_btm_response_data *dst,
+				  uint8_t idx)
+{
+	if (wmi->ops->extract_roam_btm_response_stats)
+		return wmi->ops->extract_roam_btm_response_stats(wmi, evt_buf,
+								 dst, idx);
+
+	return QDF_STATUS_E_FAILURE;
+}
+
+QDF_STATUS
+wlan_cm_roam_extract_roam_initial_info(wmi_unified_t wmi, void *evt_buf,
+				       struct roam_initial_data *dst,
+				       uint8_t idx)
+{
+	if (wmi->ops->extract_roam_initial_info)
+		return wmi->ops->extract_roam_initial_info(wmi, evt_buf,
+							   dst, idx);
+
+	return QDF_STATUS_E_FAILURE;
+}
+
 void wlan_cm_roam_activate_pcl_per_vdev(struct wlan_objmgr_psoc *psoc,
 					uint8_t vdev_id, bool pcl_per_vdev)
 {