qcacmn: Add chan change HW mode change

Add policy_mgr_get_current_pref_hw_mode_dual_dbs
API for dual dbs HW. In Dual DBS mode HW, it
decides the actual DBS mode when DBS required.

Change-Id: Ic45b09fa49e1ff923f1a2dad50a3ce7e4007a3fd
CRs-Fixed: 2338105

umac/cmn_services/policy_mgr/src/wlan_policy_mgr_action.c

@@ -1855,7 +1855,9 @@ QDF_STATUS policy_mgr_set_hw_mode_on_channel_switch(
 
 	action = (*policy_mgr_get_current_pref_hw_mode_ptr)(psoc);
 	if ((action != PM_DBS_DOWNGRADE) &&
-	    (action != PM_SINGLE_MAC_UPGRADE)) {
+	    (action != PM_SINGLE_MAC_UPGRADE) &&
+	    (action != PM_DBS1_DOWNGRADE) &&
+	    (action != PM_DBS2_DOWNGRADE)) {
 		policy_mgr_err("Invalid action: %d", action);
 		status = QDF_STATUS_SUCCESS;
 		goto done;

umac/cmn_services/policy_mgr/src/wlan_policy_mgr_core.c

@@ -2955,6 +2955,39 @@ enum policy_mgr_conc_next_action
 	return next_action;
 }
 
+enum policy_mgr_conc_next_action
+policy_mgr_get_current_pref_hw_mode_dual_dbs(
+	struct wlan_objmgr_psoc *psoc)
+{
+	enum policy_mgr_conc_next_action next_action;
+	struct policy_mgr_psoc_priv_obj *pm_ctx;
+	enum policy_mgr_conc_next_action preferred_dbs;
+
+	pm_ctx = policy_mgr_get_context(psoc);
+	if (!pm_ctx) {
+		policy_mgr_err("Invalid Context");
+		return PM_NOP;
+	}
+
+	next_action = policy_mgr_get_current_pref_hw_mode_dbs_1x1(psoc);
+	policy_mgr_info("next_action %d", next_action);
+	if (next_action != PM_DBS_DOWNGRADE)
+		return next_action;
+
+	preferred_dbs = policy_mgr_get_preferred_dbs_action_table(
+				psoc, INVALID_VDEV_ID, 0, 0);
+	if (preferred_dbs == PM_DBS1) {
+		next_action = PM_DBS1_DOWNGRADE;
+	} else if (preferred_dbs == PM_DBS2) {
+		next_action = PM_DBS2_DOWNGRADE;
+	} else {
+		policy_mgr_err("DBS1 and DBS2 hw mode not supported");
+		return PM_NOP;
+	}
+	policy_mgr_info("preferred_dbs %d", next_action);
+	return next_action;
+}
+
 /**
  * policy_mgr_reset_sap_mandatory_channels() - Reset the SAP mandatory channels
  *

umac/cmn_services/policy_mgr/src/wlan_policy_mgr_i.h

@@ -489,6 +489,20 @@ enum policy_mgr_conc_next_action
 enum policy_mgr_conc_next_action
 		policy_mgr_get_current_pref_hw_mode_dbs_1x1(
 		struct wlan_objmgr_psoc *psoc);
+
+/**
+ * policy_mgr_get_current_pref_hw_mode_dual_dbs() - Get the
+ * current preferred hw mode
+ *
+ * Get the preferred hw mode based on the current connection combinations
+ *
+ * Return: No change (PM_NOP), (PM_SINGLE_MAC_UPGRADE),
+ *         DBS (PM_DBS1_DOWNGRADE or PM_DBS2_DOWNGRADE)
+ */
+enum policy_mgr_conc_next_action
+		policy_mgr_get_current_pref_hw_mode_dual_dbs(
+		struct wlan_objmgr_psoc *psoc);
+
 QDF_STATUS policy_mgr_reset_sap_mandatory_channels(
 		struct policy_mgr_psoc_priv_obj *pm_ctx);
 

umac/cmn_services/policy_mgr/src/wlan_policy_mgr_init_deinit.c

@@ -423,6 +423,9 @@ QDF_STATUS policy_mgr_psoc_enable(struct wlan_objmgr_psoc *psoc)
 	if (policy_mgr_is_hw_dbs_2x2_capable(psoc))
 		policy_mgr_get_current_pref_hw_mode_ptr =
 		policy_mgr_get_current_pref_hw_mode_dbs_2x2;
+	else if (policy_mgr_is_2x2_1x1_dbs_capable(psoc))
+		policy_mgr_get_current_pref_hw_mode_ptr =
+		policy_mgr_get_current_pref_hw_mode_dual_dbs;
 	else
 		policy_mgr_get_current_pref_hw_mode_ptr =
 		policy_mgr_get_current_pref_hw_mode_dbs_1x1;