core: add port type -> string conversion helper for debuggin messages

src/mm-port.c

@@ -46,6 +46,26 @@ typedef struct {
 
 /*****************************************************************************/
 
+const char *
+mm_port_type_to_name (MMPortType ptype)
+{
+    switch (ptype) {
+    case MM_PORT_TYPE_PRIMARY:
+        return "primary";
+    case MM_PORT_TYPE_SECONDARY:
+        return "secondary";
+    case MM_PORT_TYPE_IGNORED:
+        return "ignored";
+    case MM_PORT_TYPE_QCDM:
+        return "QCDM";
+    default:
+        break;
+    }
+    return "(unknown)";
+}
+
+/*****************************************************************************/
+
 static GObject*
 constructor (GType type,
              guint n_construct_params,

src/mm-port.h

@@ -76,5 +76,7 @@ gboolean     mm_port_get_connected      (MMPort *self);
 
 void         mm_port_set_connected      (MMPort *self, gboolean connected);
 
+const char * mm_port_type_to_name       (MMPortType ptype);
+
 #endif /* MM_PORT_H */