mm-broadband-modem-qmi: add AT URCs fall back for calls

Enable AT URCs for calls on top of QMI Voice indications
for AT+QMI devices only. Some AT+QMI devices send unreliable
QMI indications when the host is resuming. In such cases,
AT URCs can be used as a fall back to make calls reliable.

While AT+QMI devices relied before on AT commands to load
call list information and handle AT URCs for async updates,
this is now handled through QMI by forcefully reloading the
call list instead of processing the AT URCs.
This approach is disabled by default through the
MM_IFACE_MODEM_VOICE_INDICATION_CALL_LIST_RELOAD_ENABLED property.
This property is set to true in case of QMI modems.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/mm-iface-modem-voice.c b/src/mm-iface-modem-voice.c
index 03aaeb0a..3b918259 100644
--- a/src/mm-iface-modem-voice.c
+++ b/src/mm-iface-modem-voice.c
@@ -2503,6 +2503,54 @@ setup_call_list_polling (MMCallList        *call_list,
 }
 
 /*****************************************************************************/
+/* Call list reload */
+
+gboolean
+mm_iface_modem_voice_reload_all_calls_finish (MMIfaceModemVoice  *self,
+                                              GAsyncResult       *res,
+                                              GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+reload_all_calls_ready (MMIfaceModemVoice *self,
+                        GAsyncResult      *res,
+                        GTask             *task)
+{
+    GList  *call_info_list = NULL;
+    GError *error = NULL;
+
+    g_assert (MM_IFACE_MODEM_VOICE_GET_INTERFACE (self)->load_call_list_finish);
+    if (!MM_IFACE_MODEM_VOICE_GET_INTERFACE (self)->load_call_list_finish (self, res, &call_info_list, &error)) {
+        mm_obj_warn (self, "couldn't reload call list: %s", error->message);
+
+        g_task_return_error (task, error);
+    } else {
+        /* Always report the list even if NULL (it would mean no ongoing calls) */
+        mm_iface_modem_voice_report_all_calls (self, call_info_list);
+        mm_3gpp_call_info_list_free (call_info_list);
+
+        g_task_return_boolean (task, TRUE);
+    }
+
+    g_object_unref (task);
+}
+
+void
+mm_iface_modem_voice_reload_all_calls (MMIfaceModemVoice   *self,
+                                       GAsyncReadyCallback  callback,
+                                       gpointer             user_data)
+{
+    GTask *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+    MM_IFACE_MODEM_VOICE_GET_INTERFACE (self)->load_call_list (self,
+                                                               reload_all_calls_ready,
+                                                               task);
+}
+
+/*****************************************************************************/
 
 static void
 update_call_list (MmGdbusModemVoice *skeleton,
@@ -3134,6 +3182,14 @@ iface_modem_voice_init (gpointer g_iface)
                                FALSE,
                                G_PARAM_READWRITE));
 
+    g_object_interface_install_property
+        (g_iface,
+         g_param_spec_boolean (MM_IFACE_MODEM_VOICE_INDICATION_CALL_LIST_RELOAD_ENABLED,
+                               "Reload call list on call update",
+                               "Ignore call updates and forcefully reload all calls.",
+                               FALSE,
+                               G_PARAM_READWRITE));
+
     initialized = TRUE;
 }