qcacmn: Add object manager API to iterate psoc list

Add object manager to iterate through all the psoc in
the system and call the provided callback with relevant
arguments

Change-Id: I92f4c1248447ce14413b666076e515c0569385a0
CRs-Fixed: 2413775

umac/cmn_services/obj_mgr/inc/wlan_objmgr_global_obj.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -480,4 +480,29 @@ QDF_STATUS wlan_objmgr_unregister_peer_status_handler(
 		wlan_objmgr_peer_status_handler handler,
 		void *args);
 
+/**
+ * APIs to operations on psoc
+ */
+typedef void (*wlan_objmgr_psoc_handler)(struct wlan_objmgr_psoc *psoc,
+					void *arg,
+					uint8_t index);
+
+/**
+ * wlan_objmgr_iterate_psoc_list() - iterate through all psocs
+ *
+ * @handler: the handler will be called for each psoc
+ *           the handler should be implemented to perform required operation
+ * @arg:     agruments passed by caller
+ * @dbg_id: id of the caller
+ *
+ * API to be used for performing the operations on all psoc
+ * The "handler" here shouldn't take g_umac_glb_obj->global_lock lock when
+ * processing
+ *
+ * Return: SUCCESS/FAILURE
+ */
+QDF_STATUS wlan_objmgr_iterate_psoc_list(
+		wlan_objmgr_psoc_handler handler,
+		void *arg, wlan_objmgr_ref_dbgid dbg_id);
+
 #endif /* _WLAN_OBJMGR_GLOBAL_OBJ_H_*/

umac/cmn_services/obj_mgr/src/wlan_objmgr_global_obj.c

@@ -785,3 +785,27 @@ void wlan_objmgr_print_ref_ids(qdf_atomic_t *id,
 
 	return;
 }
+
+QDF_STATUS wlan_objmgr_iterate_psoc_list(
+		wlan_objmgr_psoc_handler handler,
+		void *arg, wlan_objmgr_ref_dbgid dbg_id)
+{
+	uint8_t index = 0;
+
+	qdf_spin_lock_bh(&g_umac_glb_obj->global_lock);
+
+	while (index < WLAN_OBJMGR_MAX_DEVICES) {
+		if (g_umac_glb_obj->psoc[index]) {
+			handler((void *)g_umac_glb_obj->psoc[index],
+				arg, index);
+		}
+		index++;
+	}
+
+	qdf_spin_unlock_bh(&g_umac_glb_obj->global_lock);
+
+	return QDF_STATUS_SUCCESS;
+}
+
+qdf_export_symbol(wlan_objmgr_iterate_psoc_list);
+