qcacld-3.0: Add API policy_mgr_get_can_skip_radar_event

Dfs radar processing function dfs_process_radar_ind is called
in interrupt context. Add new API policy_mgr_get_can_skip_radar_event
to be called in interrupt context to get radar skip flag.
The policy_mgr_get_dfs_master_dynamic_enabled will acquire mutex and can't
be called in interrupt context.

Change-Id: I1a3ce8536465d6f6da86b0cf7312e6430ea8ec89
CRs-Fixed: 2672701

components/cmn_services/policy_mgr/inc/wlan_policy_mgr_api.h

@@ -216,6 +216,20 @@ bool
 policy_mgr_get_dfs_master_dynamic_enabled(struct wlan_objmgr_psoc *psoc,
 					  uint8_t vdev_id);
 
+/**
+ * policy_mgr_get_can_skip_radar_event - Can skip DFS Radar event or not
+ * @psoc: soc obj
+ * @vdev_id: sap vdev id
+ *
+ * This API is used by dfs component to get decision whether to ignore
+ * the radar event or not.
+ *
+ * Return: true if Radar event should be ignored.
+ */
+bool
+policy_mgr_get_can_skip_radar_event(struct wlan_objmgr_psoc *psoc,
+				    uint8_t vdev_id);
+
 /**
  * policy_mgr_get_sta_sap_scc_lte_coex_chnl() - to find out if STA & SAP
  *						     SCC is allowed on LTE COEX

components/cmn_services/policy_mgr/src/wlan_policy_mgr_get_set_utils.c

@@ -133,15 +133,15 @@ policy_mgr_get_sta_sap_scc_on_dfs_chnl(struct wlan_objmgr_psoc *psoc,
 	return QDF_STATUS_SUCCESS;
 }
 
-bool
-policy_mgr_get_dfs_master_dynamic_enabled(
+static bool
+policy_mgr_update_dfs_master_dynamic_enabled(
 	struct wlan_objmgr_psoc *psoc, uint8_t vdev_id)
 {
 	struct policy_mgr_psoc_priv_obj *pm_ctx;
 	bool sta_on_5g = false;
 	bool sta_on_2g = false;
 	uint32_t i;
-	bool enable;
+	bool enable = true;
 
 	pm_ctx = policy_mgr_get_context(psoc);
 	if (!pm_ctx) {
@@ -149,16 +149,21 @@ policy_mgr_get_dfs_master_dynamic_enabled(
 		return true;
 	}
 
-	if (!pm_ctx->cfg.sta_sap_scc_on_dfs_chnl)
-		return true;
+	if (!pm_ctx->cfg.sta_sap_scc_on_dfs_chnl) {
+		enable = true;
+		goto end;
+	}
 	if (pm_ctx->cfg.sta_sap_scc_on_dfs_chnl ==
-	    PM_STA_SAP_ON_DFS_MASTER_MODE_DISABLED)
-		return false;
+	    PM_STA_SAP_ON_DFS_MASTER_MODE_DISABLED) {
+		enable = false;
+		goto end;
+	}
 	if (pm_ctx->cfg.sta_sap_scc_on_dfs_chnl !=
 	    PM_STA_SAP_ON_DFS_MASTER_MODE_FLEX) {
 		policy_mgr_debug("sta_sap_scc_on_dfs_chnl %d unknown",
 				 pm_ctx->cfg.sta_sap_scc_on_dfs_chnl);
-		return true;
+		enable = true;
+		goto end;
 	}
 
 	qdf_mutex_acquire(&pm_ctx->qdf_conc_list_lock);
@@ -181,13 +186,46 @@ policy_mgr_get_dfs_master_dynamic_enabled(
 		enable = true;
 	else
 		enable = false;
-	policy_mgr_debug("sta_sap_scc_on_dfs_chnl %d sta_on_2g %d sta_on_5g %d enable %d",
-			 pm_ctx->cfg.sta_sap_scc_on_dfs_chnl, sta_on_2g,
-			 sta_on_5g, enable);
+end:
+	pm_ctx->dynamic_dfs_master_disabled = !enable;
+	if (!enable)
+		policy_mgr_debug("sta_sap_scc_on_dfs_chnl %d sta_on_2g %d sta_on_5g %d enable %d",
+				 pm_ctx->cfg.sta_sap_scc_on_dfs_chnl, sta_on_2g,
+				 sta_on_5g, enable);
 
 	return enable;
 }
 
+bool
+policy_mgr_get_dfs_master_dynamic_enabled(
+	struct wlan_objmgr_psoc *psoc, uint8_t vdev_id)
+{
+	struct policy_mgr_psoc_priv_obj *pm_ctx;
+
+	pm_ctx = policy_mgr_get_context(psoc);
+	if (!pm_ctx) {
+		policy_mgr_err("pm_ctx is NULL");
+		return true;
+	}
+
+	return policy_mgr_update_dfs_master_dynamic_enabled(psoc, vdev_id);
+}
+
+bool
+policy_mgr_get_can_skip_radar_event(struct wlan_objmgr_psoc *psoc,
+				    uint8_t vdev_id)
+{
+	struct policy_mgr_psoc_priv_obj *pm_ctx;
+
+	pm_ctx = policy_mgr_get_context(psoc);
+	if (!pm_ctx) {
+		policy_mgr_err("pm_ctx is NULL");
+		return false;
+	}
+
+	return pm_ctx->dynamic_dfs_master_disabled;
+}
+
 QDF_STATUS
 policy_mgr_get_sta_sap_scc_lte_coex_chnl(struct wlan_objmgr_psoc *psoc,
 					 uint8_t *sta_sap_scc_lte_coex)
@@ -1741,6 +1779,9 @@ void policy_mgr_incr_active_session(struct wlan_objmgr_psoc *psoc,
 	if (mode == QDF_SAP_MODE)
 		policy_mgr_init_ap_6ghz_capable(psoc, session_id,
 						conn_6ghz_flag);
+	if (mode == QDF_SAP_MODE || mode == QDF_P2P_GO_MODE ||
+	    mode == QDF_STA_MODE || mode == QDF_P2P_CLIENT_MODE)
+		policy_mgr_update_dfs_master_dynamic_enabled(psoc, session_id);
 
 	policy_mgr_dump_current_concurrency(psoc);
 
@@ -1860,6 +1901,10 @@ QDF_STATUS policy_mgr_decr_active_session(struct wlan_objmgr_psoc *psoc,
 	if (mode == QDF_STA_MODE || mode == QDF_P2P_CLIENT_MODE)
 		pm_ctx->do_sap_unsafe_ch_check = true;
 
+	if (mode == QDF_SAP_MODE || mode == QDF_P2P_GO_MODE ||
+	    mode == QDF_STA_MODE || mode == QDF_P2P_CLIENT_MODE)
+		policy_mgr_update_dfs_master_dynamic_enabled(psoc, session_id);
+
 	return qdf_status;
 }
 

components/cmn_services/policy_mgr/src/wlan_policy_mgr_i.h

@@ -335,6 +335,7 @@ struct policy_mgr_cfg {
  * @user_config_sap_ch_freq: SAP channel freq configured by user application
  * @cfg: Policy manager config data
  * @dynamic_mcc_adaptive_sched: disable/enable mcc adaptive scheduler feature
+ * @dynamic_dfs_master_disabled: current state of dynamic dfs master
  * @dual_mac_configuration_complete_evt: qdf event to synchronize dual mac
  *					 configuration setting
  */
@@ -378,6 +379,7 @@ struct policy_mgr_psoc_priv_obj {
 	uint32_t valid_ch_freq_list[NUM_CHANNELS];
 	uint32_t valid_ch_freq_list_count;
 	bool dynamic_mcc_adaptive_sched;
+	bool dynamic_dfs_master_disabled;
 	qdf_event_t dual_mac_configuration_complete_evt;
 };