From 816beeffcb748cde1682e470620c8b26d304b13f Mon Sep 17 00:00:00 2001
From: Teijo Kinnunen <teijo.kinnunen@uros.com>
Date: Thu, 25 Feb 2021 16:30:57 +0200
Subject: libmm-glib,modem-helpers,mm-base-sim: implement Sim.PreferredNetworks

The ModemManager1.Sim.PreferredNetworks property contains the preferred
networks (and access technologies, if available) configured to the
SIM card.

This commit implements preferred networks reading with AT+CPOL.
---
 libmm-glib/mm-sim.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'libmm-glib/mm-sim.c')

diff --git a/libmm-glib/mm-sim.c b/libmm-glib/mm-sim.c
index 0a3b6071..ac509d3e 100644
--- a/libmm-glib/mm-sim.c
+++ b/libmm-glib/mm-sim.c
@@ -23,6 +23,7 @@
 
 #include "mm-helpers.h"
 #include "mm-sim.h"
+#include "mm-sim-preferred-network.h"
 
 /**
  * SECTION: mm-sim
@@ -860,6 +861,47 @@ mm_sim_change_pin_sync (MMSim *self,
 
 /*****************************************************************************/
 
+/**
+ * mm_sim_get_preferred_networks:
+ * @self: A #MMSim.
+ *
+ * Gets the list of #MMSimPreferredNetwork objects exposed by this
+ * #MMSim.
+ *
+ * Returns: (transfer full) (element-type ModemManager.SimPreferredNetwork): a list of
+ * #MMSimPreferredNetwork objects, or #NULL. The returned value should
+ * be freed with g_list_free_full() using mm_sim_preferred_network_free() as #GDestroyNotify
+ * function.
+ *
+ * Since: 1.18
+ */
+GList *
+mm_sim_get_preferred_networks (MMSim *self)
+{
+    GList *network_list = NULL;
+    GVariant *container, *child;
+    GVariantIter iter;
+
+    g_return_val_if_fail (MM_IS_SIM (self), NULL);
+
+    container = mm_gdbus_sim_get_preferred_networks (MM_GDBUS_SIM (self));
+    g_return_val_if_fail (g_variant_is_of_type (container, G_VARIANT_TYPE ("a(su)")), NULL);
+
+    g_variant_iter_init (&iter, container);
+    while ((child = g_variant_iter_next_value (&iter))) {
+        MMSimPreferredNetwork *preferred_net;
+
+        preferred_net = mm_sim_preferred_network_new_from_variant (child);
+        if (preferred_net)
+            network_list = g_list_append (network_list, preferred_net);
+        g_variant_unref (child);
+    }
+
+    return network_list;
+}
+
+/*****************************************************************************/
+
 static void
 mm_sim_init (MMSim *self)
 {
-- 
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