qcacmn: Add umac implementation of get congestion stats

Add changes to support get congestion stats(arp stats) from
within cp_stats component.

Change-Id: Ieff7df33dd8f3a8a80cda57952eb8d5941ccaedc
CRs-Fixed: 2222781

umac/cp_stats/dispatcher/inc/wlan_cp_stats_mc_defs.h

@@ -125,6 +125,16 @@ struct pending_stats_requests {
 	struct request_info req[TYPE_MAX];
 };
 
+/**
+ * struct cca_stats - cca stats
+ * @congestion: the congestion percentage = (busy_time/total_time)*100
+ *    for the interval from when the vdev was started to the current time
+ *    (or the time at which the vdev was stopped).
+ */
+struct cca_stats {
+	uint32_t congestion;
+};
+
 /**
  * struct psoc_mc_cp_stats: psoc specific stats
  * @pending: details of pending requests
@@ -144,11 +154,13 @@ struct pdev_mc_cp_stats {
 };
 
 /**
- * struct vdev_mc_cp_stats -    vdev specific stats
- * @wow_stats:                  wake_lock stats for vdev
+ * struct vdev_mc_cp_stats - vdev specific stats
+ * @wow_stats: wake_lock stats for vdev
+ * @cca: cca stats
  */
 struct vdev_mc_cp_stats {
 	struct wake_lock_stats wow_stats;
+	struct cca_stats cca;
 };
 
 /**
@@ -165,18 +177,30 @@ struct peer_mc_cp_stats {
 	uint8_t peer_macaddr[WLAN_MACADDR_LEN];
 };
 
+/**
+ * struct congestion_stats_event: congestion stats event param
+ * @vdev_id: vdev_id of the event
+ * @congestion: the congestion percentage
+ */
+struct congestion_stats_event {
+	uint8_t vdev_id;
+	uint32_t congestion;
+};
+
 /**
  * struct stats_event - parameters populated by stats event
  * @num_pdev_stats: num pdev stats
  * @pdev_stats: if populated array indicating pdev stats (index = pdev_id)
  * @num_peer_stats: num peer stats
  * @peer_stats: if populated array indicating peer stats
+ * @cca_stats: if populated indicates congestion stats
  */
 struct stats_event {
 	uint32_t num_pdev_stats;
 	struct pdev_mc_cp_stats *pdev_stats;
 	uint32_t num_peer_stats;
 	struct peer_mc_cp_stats *peer_stats;
+	struct congestion_stats_event *cca_stats;
 };
 
 #endif /* CONFIG_MCL */

umac/cp_stats/dispatcher/inc/wlan_cp_stats_mc_ucfg_api.h

@@ -185,5 +185,15 @@ QDF_STATUS ucfg_mc_cp_stats_get_pending_req(struct wlan_objmgr_psoc *psoc,
  */
 void ucfg_mc_cp_stats_free_stats_resources(struct stats_event *ev);
 
+/**
+ * ucfg_mc_cp_stats_cca_stats_get() - API to fetch cca stats
+ * @vdev: pointer to vdev object
+ * @cca_stats: pointer to cca info
+ *
+ * Return - status of operation
+ */
+QDF_STATUS ucfg_mc_cp_stats_cca_stats_get(struct wlan_objmgr_vdev *vdev,
+					  struct cca_stats *cca_stats);
+
 #endif /* QCA_SUPPORT_CP_STATS */
 #endif /* __WLAN_CP_STATS_MC_UCFG_API_H__ */

umac/cp_stats/dispatcher/src/wlan_cp_stats_mc_tgt_api.c

@@ -325,6 +325,39 @@ static void tgt_mc_cp_stats_extract_peer_stats(struct wlan_objmgr_psoc *psoc,
 	ucfg_mc_cp_stats_reset_pending_req(psoc, TYPE_PEER_STATS);
 }
 
+static void tgt_mc_cp_stats_extract_cca_stats(struct wlan_objmgr_psoc *psoc,
+						  struct stats_event *ev)
+{
+	struct wlan_objmgr_vdev *vdev;
+	struct vdev_mc_cp_stats *vdev_mc_stats;
+	struct vdev_cp_stats *vdev_cp_stats_priv;
+
+	if (!ev->cca_stats)
+		return;
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+						    ev->cca_stats->vdev_id,
+						    WLAN_CP_STATS_ID);
+	if (!vdev) {
+		cp_stats_err("vdev is null");
+		return;
+	}
+
+	vdev_cp_stats_priv = wlan_cp_stats_get_vdev_stats_obj(vdev);
+	if (!vdev_cp_stats_priv) {
+		cp_stats_err("vdev cp stats object is null");
+		goto end;
+	}
+
+	wlan_cp_stats_vdev_obj_lock(vdev_cp_stats_priv);
+	vdev_mc_stats = vdev_cp_stats_priv->vdev_stats;
+	vdev_mc_stats->cca.congestion =  ev->cca_stats->congestion;
+	wlan_cp_stats_vdev_obj_unlock(vdev_cp_stats_priv);
+
+end:
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_CP_STATS_ID);
+}
+
 QDF_STATUS tgt_mc_cp_stats_process_stats_event(struct wlan_objmgr_psoc *psoc,
 					       struct stats_event *ev)
 {
@@ -334,6 +367,8 @@ QDF_STATUS tgt_mc_cp_stats_process_stats_event(struct wlan_objmgr_psoc *psoc,
 	if (ucfg_mc_cp_stats_is_req_pending(psoc, TYPE_PEER_STATS))
 		tgt_mc_cp_stats_extract_peer_stats(psoc, ev, false);
 
+	tgt_mc_cp_stats_extract_cca_stats(psoc, ev);
+
 	return QDF_STATUS_SUCCESS;
 }
 

umac/cp_stats/dispatcher/src/wlan_cp_stats_mc_ucfg_api.c

@@ -532,10 +532,28 @@ QDF_STATUS ucfg_mc_cp_stats_get_pending_req(struct wlan_objmgr_psoc *psoc,
 	return QDF_STATUS_SUCCESS;
 }
 
+QDF_STATUS ucfg_mc_cp_stats_cca_stats_get(struct wlan_objmgr_vdev *vdev,
+					  struct cca_stats *cca_stats)
+{
+	struct vdev_cp_stats *vdev_cp_stats_priv;
+	struct vdev_mc_cp_stats *vdev_mc_stats;
+
+	vdev_cp_stats_priv = wlan_cp_stats_get_vdev_stats_obj(vdev);
+	if (!vdev_cp_stats_priv) {
+		cp_stats_err("vdev cp stats object is null");
+		return QDF_STATUS_E_NULL_VALUE;
+	}
+
+	wlan_cp_stats_vdev_obj_lock(vdev_cp_stats_priv);
+	vdev_mc_stats = vdev_cp_stats_priv->vdev_stats;
+	cca_stats->congestion = vdev_mc_stats->cca.congestion;
+	wlan_cp_stats_vdev_obj_unlock(vdev_cp_stats_priv);
+	return QDF_STATUS_SUCCESS;
+}
+
 void ucfg_mc_cp_stats_free_stats_resources(struct stats_event *ev)
 {
 	qdf_mem_free(ev->pdev_stats);
 	qdf_mem_free(ev->peer_stats);
 	qdf_mem_zero(ev, sizeof(*ev));
 }
-