icera: implement timezone loading

plugins/icera/mm-iface-icera.c

@@ -659,6 +659,96 @@ void mm_iface_icera_modem_reset (MMIfaceModem *self,
                               user_data);
 }
 
+/*****************************************************************************/
+/* Load network timezone (Time interface) */
+
+static gboolean
+parse_tlts_query_reply (const gchar *response,
+                        gchar **iso8601,
+                        MMNetworkTimezone **tz)
+{
+    gint year;
+    gint month;
+    gint day;
+    gint hour;
+    gint minute;
+    gint second;
+    gchar sign;
+    gint offset;
+
+    response = mm_strip_tag (response, "*TLTS: ");
+    if (sscanf (response,
+                "\"%02d/%02d/%02d,%02d:%02d:%02d%c%02d\"",
+                &year,
+                &month,
+                &day,
+                &hour,
+                &minute,
+                &second,
+                &sign,
+                &offset) == 8) {
+        /* Offset comes in 15-min intervals */
+        offset *= 15;
+        /* Apply sign to offset */
+        if (sign == '-')
+            offset *= -1;
+
+        /* If asked for it, build timezone information */
+        if (tz) {
+            *tz = mm_network_timezone_new ();
+            mm_network_timezone_set_offset (*tz, offset);
+        }
+
+        if (iso8601) {
+            /* don't give tz info in the date/time string, we have another
+             * property for that */
+            *iso8601 = g_strdup_printf ("%02d/%02d/%02d %02d:%02d:%02d",
+                                        year, month, day,
+                                        hour, minute, second);
+        }
+
+        return TRUE;
+    }
+
+    mm_warn ("Unknown *TLTS response: %s", response);
+    return FALSE;
+}
+
+MMNetworkTimezone *
+mm_iface_icera_modem_time_load_network_timezone_finish (MMIfaceModemTime *self,
+                                                        GAsyncResult *res,
+                                                        GError **error)
+{
+    const gchar *response;
+    MMNetworkTimezone *tz;
+
+
+    response = mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, NULL);
+    if (!response) {
+        /* We'll assume we can retry a bit later */
+        g_set_error (error,
+                     MM_CORE_ERROR,
+                     MM_CORE_ERROR_RETRY,
+                     "Retry");
+        return NULL;
+    }
+
+    return (parse_tlts_query_reply (response, NULL, &tz) ? tz : NULL);
+}
+
+void
+mm_iface_icera_modem_time_load_network_timezone (MMIfaceModemTime *self,
+                                                 GAsyncReadyCallback callback,
+                                                 gpointer user_data)
+{
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              "%TLTS",
+                              3,
+                              FALSE,
+                              callback,
+                              user_data);
+}
+
 /*****************************************************************************/
 
 static void

plugins/icera/mm-iface-icera.h

@@ -19,6 +19,7 @@
 
 #include "mm-iface-modem.h"
 #include "mm-iface-modem-3gpp.h"
+#include "mm-iface-modem-time.h"
 #include "mm-broadband-modem.h"
 
 #define MM_TYPE_IFACE_ICERA            (mm_iface_icera_get_type ())
@@ -99,4 +100,14 @@ gboolean mm_iface_icera_modem_3gpp_disable_unsolicited_events_finish (MMIfaceMod
                                                                       GAsyncResult *res,
                                                                       GError **error);
 
+/*****************************************************************************/
+/* Modem Time interface specific implementations */
+
+void               mm_iface_icera_modem_time_load_network_timezone        (MMIfaceModemTime *self,
+                                                                           GAsyncReadyCallback callback,
+                                                                           gpointer user_data);
+MMNetworkTimezone *mm_iface_icera_modem_time_load_network_timezone_finish (MMIfaceModemTime *self,
+                                                                           GAsyncResult *res,
+                                                                           GError **error);
+
 #endif /* MM_IFACE_ICERA_H */